1 //===- unittest/Format/FormatTest.cpp - Formatting unit tests -------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "clang/Format/Format.h" 11 12 #include "../Tooling/RewriterTestContext.h" 13 #include "FormatTestUtils.h" 14 15 #include "clang/Frontend/TextDiagnosticPrinter.h" 16 #include "llvm/Support/Debug.h" 17 #include "llvm/Support/MemoryBuffer.h" 18 #include "gtest/gtest.h" 19 20 #define DEBUG_TYPE "format-test" 21 22 namespace clang { 23 namespace format { 24 namespace { 25 26 FormatStyle getGoogleStyle() { return getGoogleStyle(FormatStyle::LK_Cpp); } 27 28 class FormatTest : public ::testing::Test { 29 protected: 30 enum IncompleteCheck { 31 IC_ExpectComplete, 32 IC_ExpectIncomplete, 33 IC_DoNotCheck 34 }; 35 36 std::string format(llvm::StringRef Code, 37 const FormatStyle &Style = getLLVMStyle(), 38 IncompleteCheck CheckIncomplete = IC_ExpectComplete) { 39 DEBUG(llvm::errs() << "---\n"); 40 DEBUG(llvm::errs() << Code << "\n\n"); 41 std::vector<tooling::Range> Ranges(1, tooling::Range(0, Code.size())); 42 bool IncompleteFormat = false; 43 tooling::Replacements Replaces = 44 reformat(Style, Code, Ranges, "<stdin>", &IncompleteFormat); 45 if (CheckIncomplete != IC_DoNotCheck) { 46 bool ExpectedIncompleteFormat = CheckIncomplete == IC_ExpectIncomplete; 47 EXPECT_EQ(ExpectedIncompleteFormat, IncompleteFormat) << Code << "\n\n"; 48 } 49 ReplacementCount = Replaces.size(); 50 std::string Result = applyAllReplacements(Code, Replaces); 51 EXPECT_NE("", Result); 52 DEBUG(llvm::errs() << "\n" << Result << "\n\n"); 53 return Result; 54 } 55 56 FormatStyle getLLVMStyleWithColumns(unsigned ColumnLimit) { 57 FormatStyle Style = getLLVMStyle(); 58 Style.ColumnLimit = ColumnLimit; 59 return Style; 60 } 61 62 FormatStyle getGoogleStyleWithColumns(unsigned ColumnLimit) { 63 FormatStyle Style = getGoogleStyle(); 64 Style.ColumnLimit = ColumnLimit; 65 return Style; 66 } 67 68 void verifyFormat(llvm::StringRef Code, 69 const FormatStyle &Style = getLLVMStyle()) { 70 EXPECT_EQ(Code.str(), format(test::messUp(Code), Style)); 71 } 72 73 void verifyIncompleteFormat(llvm::StringRef Code, 74 const FormatStyle &Style = getLLVMStyle()) { 75 EXPECT_EQ(Code.str(), 76 format(test::messUp(Code), Style, IC_ExpectIncomplete)); 77 } 78 79 void verifyGoogleFormat(llvm::StringRef Code) { 80 verifyFormat(Code, getGoogleStyle()); 81 } 82 83 void verifyIndependentOfContext(llvm::StringRef text) { 84 verifyFormat(text); 85 verifyFormat(llvm::Twine("void f() { " + text + " }").str()); 86 } 87 88 /// \brief Verify that clang-format does not crash on the given input. 89 void verifyNoCrash(llvm::StringRef Code, 90 const FormatStyle &Style = getLLVMStyle()) { 91 format(Code, Style, IC_DoNotCheck); 92 } 93 94 int ReplacementCount; 95 }; 96 97 TEST_F(FormatTest, MessUp) { 98 EXPECT_EQ("1 2 3", test::messUp("1 2 3")); 99 EXPECT_EQ("1 2 3\n", test::messUp("1\n2\n3\n")); 100 EXPECT_EQ("a\n//b\nc", test::messUp("a\n//b\nc")); 101 EXPECT_EQ("a\n#b\nc", test::messUp("a\n#b\nc")); 102 EXPECT_EQ("a\n#b c d\ne", test::messUp("a\n#b\\\nc\\\nd\ne")); 103 } 104 105 //===----------------------------------------------------------------------===// 106 // Basic function tests. 107 //===----------------------------------------------------------------------===// 108 109 TEST_F(FormatTest, DoesNotChangeCorrectlyFormattedCode) { 110 EXPECT_EQ(";", format(";")); 111 } 112 113 TEST_F(FormatTest, FormatsGlobalStatementsAt0) { 114 EXPECT_EQ("int i;", format(" int i;")); 115 EXPECT_EQ("\nint i;", format(" \n\t \v \f int i;")); 116 EXPECT_EQ("int i;\nint j;", format(" int i; int j;")); 117 EXPECT_EQ("int i;\nint j;", format(" int i;\n int j;")); 118 } 119 120 TEST_F(FormatTest, FormatsUnwrappedLinesAtFirstFormat) { 121 EXPECT_EQ("int i;", format("int\ni;")); 122 } 123 124 TEST_F(FormatTest, FormatsNestedBlockStatements) { 125 EXPECT_EQ("{\n {\n {}\n }\n}", format("{{{}}}")); 126 } 127 128 TEST_F(FormatTest, FormatsNestedCall) { 129 verifyFormat("Method(f1, f2(f3));"); 130 verifyFormat("Method(f1(f2, f3()));"); 131 verifyFormat("Method(f1(f2, (f3())));"); 132 } 133 134 TEST_F(FormatTest, NestedNameSpecifiers) { 135 verifyFormat("vector<::Type> v;"); 136 verifyFormat("::ns::SomeFunction(::ns::SomeOtherFunction())"); 137 verifyFormat("static constexpr bool Bar = decltype(bar())::value;"); 138 verifyFormat("bool a = 2 < ::SomeFunction();"); 139 } 140 141 TEST_F(FormatTest, OnlyGeneratesNecessaryReplacements) { 142 EXPECT_EQ("if (a) {\n" 143 " f();\n" 144 "}", 145 format("if(a){f();}")); 146 EXPECT_EQ(4, ReplacementCount); 147 EXPECT_EQ("if (a) {\n" 148 " f();\n" 149 "}", 150 format("if (a) {\n" 151 " f();\n" 152 "}")); 153 EXPECT_EQ(0, ReplacementCount); 154 EXPECT_EQ("/*\r\n" 155 "\r\n" 156 "*/\r\n", 157 format("/*\r\n" 158 "\r\n" 159 "*/\r\n")); 160 EXPECT_EQ(0, ReplacementCount); 161 } 162 163 TEST_F(FormatTest, RemovesEmptyLines) { 164 EXPECT_EQ("class C {\n" 165 " int i;\n" 166 "};", 167 format("class C {\n" 168 " int i;\n" 169 "\n" 170 "};")); 171 172 // Don't remove empty lines at the start of namespaces or extern "C" blocks. 173 EXPECT_EQ("namespace N {\n" 174 "\n" 175 "int i;\n" 176 "}", 177 format("namespace N {\n" 178 "\n" 179 "int i;\n" 180 "}", 181 getGoogleStyle())); 182 EXPECT_EQ("extern /**/ \"C\" /**/ {\n" 183 "\n" 184 "int i;\n" 185 "}", 186 format("extern /**/ \"C\" /**/ {\n" 187 "\n" 188 "int i;\n" 189 "}", 190 getGoogleStyle())); 191 192 // ...but do keep inlining and removing empty lines for non-block extern "C" 193 // functions. 194 verifyFormat("extern \"C\" int f() { return 42; }", getGoogleStyle()); 195 EXPECT_EQ("extern \"C\" int f() {\n" 196 " int i = 42;\n" 197 " return i;\n" 198 "}", 199 format("extern \"C\" int f() {\n" 200 "\n" 201 " int i = 42;\n" 202 " return i;\n" 203 "}", 204 getGoogleStyle())); 205 206 // Remove empty lines at the beginning and end of blocks. 207 EXPECT_EQ("void f() {\n" 208 "\n" 209 " if (a) {\n" 210 "\n" 211 " f();\n" 212 " }\n" 213 "}", 214 format("void f() {\n" 215 "\n" 216 " if (a) {\n" 217 "\n" 218 " f();\n" 219 "\n" 220 " }\n" 221 "\n" 222 "}", 223 getLLVMStyle())); 224 EXPECT_EQ("void f() {\n" 225 " if (a) {\n" 226 " f();\n" 227 " }\n" 228 "}", 229 format("void f() {\n" 230 "\n" 231 " if (a) {\n" 232 "\n" 233 " f();\n" 234 "\n" 235 " }\n" 236 "\n" 237 "}", 238 getGoogleStyle())); 239 240 // Don't remove empty lines in more complex control statements. 241 EXPECT_EQ("void f() {\n" 242 " if (a) {\n" 243 " f();\n" 244 "\n" 245 " } else if (b) {\n" 246 " f();\n" 247 " }\n" 248 "}", 249 format("void f() {\n" 250 " if (a) {\n" 251 " f();\n" 252 "\n" 253 " } else if (b) {\n" 254 " f();\n" 255 "\n" 256 " }\n" 257 "\n" 258 "}")); 259 260 // FIXME: This is slightly inconsistent. 261 EXPECT_EQ("namespace {\n" 262 "int i;\n" 263 "}", 264 format("namespace {\n" 265 "int i;\n" 266 "\n" 267 "}")); 268 EXPECT_EQ("namespace {\n" 269 "int i;\n" 270 "\n" 271 "} // namespace", 272 format("namespace {\n" 273 "int i;\n" 274 "\n" 275 "} // namespace")); 276 } 277 278 TEST_F(FormatTest, RecognizesBinaryOperatorKeywords) { 279 verifyFormat("x = (a) and (b);"); 280 verifyFormat("x = (a) or (b);"); 281 verifyFormat("x = (a) bitand (b);"); 282 verifyFormat("x = (a) bitor (b);"); 283 verifyFormat("x = (a) not_eq (b);"); 284 verifyFormat("x = (a) and_eq (b);"); 285 verifyFormat("x = (a) or_eq (b);"); 286 verifyFormat("x = (a) xor (b);"); 287 } 288 289 //===----------------------------------------------------------------------===// 290 // Tests for control statements. 291 //===----------------------------------------------------------------------===// 292 293 TEST_F(FormatTest, FormatIfWithoutCompoundStatement) { 294 verifyFormat("if (true)\n f();\ng();"); 295 verifyFormat("if (a)\n if (b)\n if (c)\n g();\nh();"); 296 verifyFormat("if (a)\n if (b) {\n f();\n }\ng();"); 297 298 FormatStyle AllowsMergedIf = getLLVMStyle(); 299 AllowsMergedIf.AlignEscapedNewlinesLeft = true; 300 AllowsMergedIf.AllowShortIfStatementsOnASingleLine = true; 301 verifyFormat("if (a)\n" 302 " // comment\n" 303 " f();", 304 AllowsMergedIf); 305 verifyFormat("{\n" 306 " if (a)\n" 307 " label:\n" 308 " f();\n" 309 "}", 310 AllowsMergedIf); 311 verifyFormat("#define A \\\n" 312 " if (a) \\\n" 313 " label: \\\n" 314 " f()", 315 AllowsMergedIf); 316 verifyFormat("if (a)\n" 317 " ;", 318 AllowsMergedIf); 319 verifyFormat("if (a)\n" 320 " if (b) return;", 321 AllowsMergedIf); 322 323 verifyFormat("if (a) // Can't merge this\n" 324 " f();\n", 325 AllowsMergedIf); 326 verifyFormat("if (a) /* still don't merge */\n" 327 " f();", 328 AllowsMergedIf); 329 verifyFormat("if (a) { // Never merge this\n" 330 " f();\n" 331 "}", 332 AllowsMergedIf); 333 verifyFormat("if (a) { /* Never merge this */\n" 334 " f();\n" 335 "}", 336 AllowsMergedIf); 337 338 AllowsMergedIf.ColumnLimit = 14; 339 verifyFormat("if (a) return;", AllowsMergedIf); 340 verifyFormat("if (aaaaaaaaa)\n" 341 " return;", 342 AllowsMergedIf); 343 344 AllowsMergedIf.ColumnLimit = 13; 345 verifyFormat("if (a)\n return;", AllowsMergedIf); 346 } 347 348 TEST_F(FormatTest, FormatLoopsWithoutCompoundStatement) { 349 FormatStyle AllowsMergedLoops = getLLVMStyle(); 350 AllowsMergedLoops.AllowShortLoopsOnASingleLine = true; 351 verifyFormat("while (true) continue;", AllowsMergedLoops); 352 verifyFormat("for (;;) continue;", AllowsMergedLoops); 353 verifyFormat("for (int &v : vec) v *= 2;", AllowsMergedLoops); 354 verifyFormat("while (true)\n" 355 " ;", 356 AllowsMergedLoops); 357 verifyFormat("for (;;)\n" 358 " ;", 359 AllowsMergedLoops); 360 verifyFormat("for (;;)\n" 361 " for (;;) continue;", 362 AllowsMergedLoops); 363 verifyFormat("for (;;) // Can't merge this\n" 364 " continue;", 365 AllowsMergedLoops); 366 verifyFormat("for (;;) /* still don't merge */\n" 367 " continue;", 368 AllowsMergedLoops); 369 } 370 371 TEST_F(FormatTest, FormatShortBracedStatements) { 372 FormatStyle AllowSimpleBracedStatements = getLLVMStyle(); 373 AllowSimpleBracedStatements.AllowShortBlocksOnASingleLine = true; 374 375 AllowSimpleBracedStatements.AllowShortIfStatementsOnASingleLine = true; 376 AllowSimpleBracedStatements.AllowShortLoopsOnASingleLine = true; 377 378 verifyFormat("if (true) {}", AllowSimpleBracedStatements); 379 verifyFormat("while (true) {}", AllowSimpleBracedStatements); 380 verifyFormat("for (;;) {}", AllowSimpleBracedStatements); 381 verifyFormat("if (true) { f(); }", AllowSimpleBracedStatements); 382 verifyFormat("while (true) { f(); }", AllowSimpleBracedStatements); 383 verifyFormat("for (;;) { f(); }", AllowSimpleBracedStatements); 384 verifyFormat("if (true) { //\n" 385 " f();\n" 386 "}", 387 AllowSimpleBracedStatements); 388 verifyFormat("if (true) {\n" 389 " f();\n" 390 " f();\n" 391 "}", 392 AllowSimpleBracedStatements); 393 verifyFormat("if (true) {\n" 394 " f();\n" 395 "} else {\n" 396 " f();\n" 397 "}", 398 AllowSimpleBracedStatements); 399 400 verifyFormat("template <int> struct A2 {\n" 401 " struct B {};\n" 402 "};", 403 AllowSimpleBracedStatements); 404 405 AllowSimpleBracedStatements.AllowShortIfStatementsOnASingleLine = false; 406 verifyFormat("if (true) {\n" 407 " f();\n" 408 "}", 409 AllowSimpleBracedStatements); 410 verifyFormat("if (true) {\n" 411 " f();\n" 412 "} else {\n" 413 " f();\n" 414 "}", 415 AllowSimpleBracedStatements); 416 417 AllowSimpleBracedStatements.AllowShortLoopsOnASingleLine = false; 418 verifyFormat("while (true) {\n" 419 " f();\n" 420 "}", 421 AllowSimpleBracedStatements); 422 verifyFormat("for (;;) {\n" 423 " f();\n" 424 "}", 425 AllowSimpleBracedStatements); 426 } 427 428 TEST_F(FormatTest, ParseIfElse) { 429 verifyFormat("if (true)\n" 430 " if (true)\n" 431 " if (true)\n" 432 " f();\n" 433 " else\n" 434 " g();\n" 435 " else\n" 436 " h();\n" 437 "else\n" 438 " i();"); 439 verifyFormat("if (true)\n" 440 " if (true)\n" 441 " if (true) {\n" 442 " if (true)\n" 443 " f();\n" 444 " } else {\n" 445 " g();\n" 446 " }\n" 447 " else\n" 448 " h();\n" 449 "else {\n" 450 " i();\n" 451 "}"); 452 verifyFormat("void f() {\n" 453 " if (a) {\n" 454 " } else {\n" 455 " }\n" 456 "}"); 457 } 458 459 TEST_F(FormatTest, ElseIf) { 460 verifyFormat("if (a) {\n} else if (b) {\n}"); 461 verifyFormat("if (a)\n" 462 " f();\n" 463 "else if (b)\n" 464 " g();\n" 465 "else\n" 466 " h();"); 467 verifyFormat("if (a) {\n" 468 " f();\n" 469 "}\n" 470 "// or else ..\n" 471 "else {\n" 472 " g()\n" 473 "}"); 474 475 verifyFormat("if (a) {\n" 476 "} else if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 477 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa)) {\n" 478 "}"); 479 verifyFormat("if (a) {\n" 480 "} else if (\n" 481 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n" 482 "}", 483 getLLVMStyleWithColumns(62)); 484 } 485 486 TEST_F(FormatTest, FormatsForLoop) { 487 verifyFormat( 488 "for (int VeryVeryLongLoopVariable = 0; VeryVeryLongLoopVariable < 10;\n" 489 " ++VeryVeryLongLoopVariable)\n" 490 " ;"); 491 verifyFormat("for (;;)\n" 492 " f();"); 493 verifyFormat("for (;;) {\n}"); 494 verifyFormat("for (;;) {\n" 495 " f();\n" 496 "}"); 497 verifyFormat("for (int i = 0; (i < 10); ++i) {\n}"); 498 499 verifyFormat( 500 "for (std::vector<UnwrappedLine>::iterator I = UnwrappedLines.begin(),\n" 501 " E = UnwrappedLines.end();\n" 502 " I != E; ++I) {\n}"); 503 504 verifyFormat( 505 "for (MachineFun::iterator IIII = PrevIt, EEEE = F.end(); IIII != EEEE;\n" 506 " ++IIIII) {\n}"); 507 verifyFormat("for (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaa =\n" 508 " aaaaaaaaaaaaaaaa.aaaaaaaaaaaaaaa;\n" 509 " aaaaaaaaaaa != aaaaaaaaaaaaaaaaaaa; ++aaaaaaaaaaa) {\n}"); 510 verifyFormat("for (llvm::ArrayRef<NamedDecl *>::iterator\n" 511 " I = FD->getDeclsInPrototypeScope().begin(),\n" 512 " E = FD->getDeclsInPrototypeScope().end();\n" 513 " I != E; ++I) {\n}"); 514 verifyFormat("for (SmallVectorImpl<TemplateIdAnnotationn *>::iterator\n" 515 " I = Container.begin(),\n" 516 " E = Container.end();\n" 517 " I != E; ++I) {\n}", 518 getLLVMStyleWithColumns(76)); 519 520 verifyFormat( 521 "for (aaaaaaaaaaaaaaaaa aaaaaaaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;\n" 522 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa !=\n" 523 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 524 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);\n" 525 " ++aaaaaaaaaaa) {\n}"); 526 verifyFormat("for (int i = 0; i < aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 527 " bbbbbbbbbbbbbbbbbbbb < ccccccccccccccc;\n" 528 " ++i) {\n}"); 529 verifyFormat("for (int aaaaaaaaaaa = 1; aaaaaaaaaaa <= bbbbbbbbbbbbbbb;\n" 530 " aaaaaaaaaaa++, bbbbbbbbbbbbbbbbb++) {\n" 531 "}"); 532 verifyFormat("for (some_namespace::SomeIterator iter( // force break\n" 533 " aaaaaaaaaa);\n" 534 " iter; ++iter) {\n" 535 "}"); 536 verifyFormat("for (auto aaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 537 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);\n" 538 " aaaaaaaaaaaaaaaaaaaaaaaaaaa != bbbbbbbbbbbbbbbbbbbbbbb;\n" 539 " ++aaaaaaaaaaaaaaaaaaaaaaaaaaa) {"); 540 541 FormatStyle NoBinPacking = getLLVMStyle(); 542 NoBinPacking.BinPackParameters = false; 543 verifyFormat("for (int aaaaaaaaaaa = 1;\n" 544 " aaaaaaaaaaa <= aaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaa,\n" 545 " aaaaaaaaaaaaaaaa,\n" 546 " aaaaaaaaaaaaaaaa,\n" 547 " aaaaaaaaaaaaaaaa);\n" 548 " aaaaaaaaaaa++, bbbbbbbbbbbbbbbbb++) {\n" 549 "}", 550 NoBinPacking); 551 verifyFormat( 552 "for (std::vector<UnwrappedLine>::iterator I = UnwrappedLines.begin(),\n" 553 " E = UnwrappedLines.end();\n" 554 " I != E;\n" 555 " ++I) {\n}", 556 NoBinPacking); 557 } 558 559 TEST_F(FormatTest, RangeBasedForLoops) { 560 verifyFormat("for (auto aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 561 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}"); 562 verifyFormat("for (auto aaaaaaaaaaaaaaaaaaaaa :\n" 563 " aaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaa, aaaaaaaaaaaaa)) {\n}"); 564 verifyFormat("for (const aaaaaaaaaaaaaaaaaaaaa &aaaaaaaaa :\n" 565 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}"); 566 verifyFormat("for (aaaaaaaaa aaaaaaaaaaaaaaaaaaaaa :\n" 567 " aaaaaaaaaaaa.aaaaaaaaaaaa().aaaaaaaaa().a()) {\n}"); 568 } 569 570 TEST_F(FormatTest, ForEachLoops) { 571 verifyFormat("void f() {\n" 572 " foreach (Item *item, itemlist) {}\n" 573 " Q_FOREACH (Item *item, itemlist) {}\n" 574 " BOOST_FOREACH (Item *item, itemlist) {}\n" 575 " UNKNOWN_FORACH(Item * item, itemlist) {}\n" 576 "}"); 577 578 // As function-like macros. 579 verifyFormat("#define foreach(x, y)\n" 580 "#define Q_FOREACH(x, y)\n" 581 "#define BOOST_FOREACH(x, y)\n" 582 "#define UNKNOWN_FOREACH(x, y)\n"); 583 584 // Not as function-like macros. 585 verifyFormat("#define foreach (x, y)\n" 586 "#define Q_FOREACH (x, y)\n" 587 "#define BOOST_FOREACH (x, y)\n" 588 "#define UNKNOWN_FOREACH (x, y)\n"); 589 } 590 591 TEST_F(FormatTest, FormatsWhileLoop) { 592 verifyFormat("while (true) {\n}"); 593 verifyFormat("while (true)\n" 594 " f();"); 595 verifyFormat("while () {\n}"); 596 verifyFormat("while () {\n" 597 " f();\n" 598 "}"); 599 } 600 601 TEST_F(FormatTest, FormatsDoWhile) { 602 verifyFormat("do {\n" 603 " do_something();\n" 604 "} while (something());"); 605 verifyFormat("do\n" 606 " do_something();\n" 607 "while (something());"); 608 } 609 610 TEST_F(FormatTest, FormatsSwitchStatement) { 611 verifyFormat("switch (x) {\n" 612 "case 1:\n" 613 " f();\n" 614 " break;\n" 615 "case kFoo:\n" 616 "case ns::kBar:\n" 617 "case kBaz:\n" 618 " break;\n" 619 "default:\n" 620 " g();\n" 621 " break;\n" 622 "}"); 623 verifyFormat("switch (x) {\n" 624 "case 1: {\n" 625 " f();\n" 626 " break;\n" 627 "}\n" 628 "case 2: {\n" 629 " break;\n" 630 "}\n" 631 "}"); 632 verifyFormat("switch (x) {\n" 633 "case 1: {\n" 634 " f();\n" 635 " {\n" 636 " g();\n" 637 " h();\n" 638 " }\n" 639 " break;\n" 640 "}\n" 641 "}"); 642 verifyFormat("switch (x) {\n" 643 "case 1: {\n" 644 " f();\n" 645 " if (foo) {\n" 646 " g();\n" 647 " h();\n" 648 " }\n" 649 " break;\n" 650 "}\n" 651 "}"); 652 verifyFormat("switch (x) {\n" 653 "case 1: {\n" 654 " f();\n" 655 " g();\n" 656 "} break;\n" 657 "}"); 658 verifyFormat("switch (test)\n" 659 " ;"); 660 verifyFormat("switch (x) {\n" 661 "default: {\n" 662 " // Do nothing.\n" 663 "}\n" 664 "}"); 665 verifyFormat("switch (x) {\n" 666 "// comment\n" 667 "// if 1, do f()\n" 668 "case 1:\n" 669 " f();\n" 670 "}"); 671 verifyFormat("switch (x) {\n" 672 "case 1:\n" 673 " // Do amazing stuff\n" 674 " {\n" 675 " f();\n" 676 " g();\n" 677 " }\n" 678 " break;\n" 679 "}"); 680 verifyFormat("#define A \\\n" 681 " switch (x) { \\\n" 682 " case a: \\\n" 683 " foo = b; \\\n" 684 " }", 685 getLLVMStyleWithColumns(20)); 686 verifyFormat("#define OPERATION_CASE(name) \\\n" 687 " case OP_name: \\\n" 688 " return operations::Operation##name\n", 689 getLLVMStyleWithColumns(40)); 690 verifyFormat("switch (x) {\n" 691 "case 1:;\n" 692 "default:;\n" 693 " int i;\n" 694 "}"); 695 696 verifyGoogleFormat("switch (x) {\n" 697 " case 1:\n" 698 " f();\n" 699 " break;\n" 700 " case kFoo:\n" 701 " case ns::kBar:\n" 702 " case kBaz:\n" 703 " break;\n" 704 " default:\n" 705 " g();\n" 706 " break;\n" 707 "}"); 708 verifyGoogleFormat("switch (x) {\n" 709 " case 1: {\n" 710 " f();\n" 711 " break;\n" 712 " }\n" 713 "}"); 714 verifyGoogleFormat("switch (test)\n" 715 " ;"); 716 717 verifyGoogleFormat("#define OPERATION_CASE(name) \\\n" 718 " case OP_name: \\\n" 719 " return operations::Operation##name\n"); 720 verifyGoogleFormat("Operation codeToOperation(OperationCode OpCode) {\n" 721 " // Get the correction operation class.\n" 722 " switch (OpCode) {\n" 723 " CASE(Add);\n" 724 " CASE(Subtract);\n" 725 " default:\n" 726 " return operations::Unknown;\n" 727 " }\n" 728 "#undef OPERATION_CASE\n" 729 "}"); 730 verifyFormat("DEBUG({\n" 731 " switch (x) {\n" 732 " case A:\n" 733 " f();\n" 734 " break;\n" 735 " // On B:\n" 736 " case B:\n" 737 " g();\n" 738 " break;\n" 739 " }\n" 740 "});"); 741 verifyFormat("switch (a) {\n" 742 "case (b):\n" 743 " return;\n" 744 "}"); 745 746 verifyFormat("switch (a) {\n" 747 "case some_namespace::\n" 748 " some_constant:\n" 749 " return;\n" 750 "}", 751 getLLVMStyleWithColumns(34)); 752 } 753 754 TEST_F(FormatTest, CaseRanges) { 755 verifyFormat("switch (x) {\n" 756 "case 'A' ... 'Z':\n" 757 "case 1 ... 5:\n" 758 "case a ... b:\n" 759 " break;\n" 760 "}"); 761 } 762 763 TEST_F(FormatTest, ShortCaseLabels) { 764 FormatStyle Style = getLLVMStyle(); 765 Style.AllowShortCaseLabelsOnASingleLine = true; 766 verifyFormat("switch (a) {\n" 767 "case 1: x = 1; break;\n" 768 "case 2: return;\n" 769 "case 3:\n" 770 "case 4:\n" 771 "case 5: return;\n" 772 "case 6: // comment\n" 773 " return;\n" 774 "case 7:\n" 775 " // comment\n" 776 " return;\n" 777 "case 8:\n" 778 " x = 8; // comment\n" 779 " break;\n" 780 "default: y = 1; break;\n" 781 "}", 782 Style); 783 verifyFormat("switch (a) {\n" 784 "#if FOO\n" 785 "case 0: return 0;\n" 786 "#endif\n" 787 "}", 788 Style); 789 verifyFormat("switch (a) {\n" 790 "case 1: {\n" 791 "}\n" 792 "case 2: {\n" 793 " return;\n" 794 "}\n" 795 "case 3: {\n" 796 " x = 1;\n" 797 " return;\n" 798 "}\n" 799 "case 4:\n" 800 " if (x)\n" 801 " return;\n" 802 "}", 803 Style); 804 Style.ColumnLimit = 21; 805 verifyFormat("switch (a) {\n" 806 "case 1: x = 1; break;\n" 807 "case 2: return;\n" 808 "case 3:\n" 809 "case 4:\n" 810 "case 5: return;\n" 811 "default:\n" 812 " y = 1;\n" 813 " break;\n" 814 "}", 815 Style); 816 } 817 818 TEST_F(FormatTest, FormatsLabels) { 819 verifyFormat("void f() {\n" 820 " some_code();\n" 821 "test_label:\n" 822 " some_other_code();\n" 823 " {\n" 824 " some_more_code();\n" 825 " another_label:\n" 826 " some_more_code();\n" 827 " }\n" 828 "}"); 829 verifyFormat("{\n" 830 " some_code();\n" 831 "test_label:\n" 832 " some_other_code();\n" 833 "}"); 834 verifyFormat("{\n" 835 " some_code();\n" 836 "test_label:;\n" 837 " int i = 0;\n" 838 "}"); 839 } 840 841 //===----------------------------------------------------------------------===// 842 // Tests for comments. 843 //===----------------------------------------------------------------------===// 844 845 TEST_F(FormatTest, UnderstandsSingleLineComments) { 846 verifyFormat("//* */"); 847 verifyFormat("// line 1\n" 848 "// line 2\n" 849 "void f() {}\n"); 850 851 verifyFormat("void f() {\n" 852 " // Doesn't do anything\n" 853 "}"); 854 verifyFormat("SomeObject\n" 855 " // Calling someFunction on SomeObject\n" 856 " .someFunction();"); 857 verifyFormat("auto result = SomeObject\n" 858 " // Calling someFunction on SomeObject\n" 859 " .someFunction();"); 860 verifyFormat("void f(int i, // some comment (probably for i)\n" 861 " int j, // some comment (probably for j)\n" 862 " int k); // some comment (probably for k)"); 863 verifyFormat("void f(int i,\n" 864 " // some comment (probably for j)\n" 865 " int j,\n" 866 " // some comment (probably for k)\n" 867 " int k);"); 868 869 verifyFormat("int i // This is a fancy variable\n" 870 " = 5; // with nicely aligned comment."); 871 872 verifyFormat("// Leading comment.\n" 873 "int a; // Trailing comment."); 874 verifyFormat("int a; // Trailing comment\n" 875 " // on 2\n" 876 " // or 3 lines.\n" 877 "int b;"); 878 verifyFormat("int a; // Trailing comment\n" 879 "\n" 880 "// Leading comment.\n" 881 "int b;"); 882 verifyFormat("int a; // Comment.\n" 883 " // More details.\n" 884 "int bbbb; // Another comment."); 885 verifyFormat( 886 "int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa; // comment\n" 887 "int bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb; // comment\n" 888 "int cccccccccccccccccccccccccccccc; // comment\n" 889 "int ddd; // looooooooooooooooooooooooong comment\n" 890 "int aaaaaaaaaaaaaaaaaaaaaaa; // comment\n" 891 "int bbbbbbbbbbbbbbbbbbbbb; // comment\n" 892 "int ccccccccccccccccccc; // comment"); 893 894 verifyFormat("#include \"a\" // comment\n" 895 "#include \"a/b/c\" // comment"); 896 verifyFormat("#include <a> // comment\n" 897 "#include <a/b/c> // comment"); 898 EXPECT_EQ("#include \"a\" // comment\n" 899 "#include \"a/b/c\" // comment", 900 format("#include \\\n" 901 " \"a\" // comment\n" 902 "#include \"a/b/c\" // comment")); 903 904 verifyFormat("enum E {\n" 905 " // comment\n" 906 " VAL_A, // comment\n" 907 " VAL_B\n" 908 "};"); 909 910 verifyFormat( 911 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 912 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb; // Trailing comment"); 913 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 914 " // Comment inside a statement.\n" 915 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;"); 916 verifyFormat("SomeFunction(a,\n" 917 " // comment\n" 918 " b + x);"); 919 verifyFormat("SomeFunction(a, a,\n" 920 " // comment\n" 921 " b + x);"); 922 verifyFormat( 923 "bool aaaaaaaaaaaaa = // comment\n" 924 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 925 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 926 927 verifyFormat("int aaaa; // aaaaa\n" 928 "int aa; // aaaaaaa", 929 getLLVMStyleWithColumns(20)); 930 931 EXPECT_EQ("void f() { // This does something ..\n" 932 "}\n" 933 "int a; // This is unrelated", 934 format("void f() { // This does something ..\n" 935 " }\n" 936 "int a; // This is unrelated")); 937 EXPECT_EQ("class C {\n" 938 " void f() { // This does something ..\n" 939 " } // awesome..\n" 940 "\n" 941 " int a; // This is unrelated\n" 942 "};", 943 format("class C{void f() { // This does something ..\n" 944 " } // awesome..\n" 945 " \n" 946 "int a; // This is unrelated\n" 947 "};")); 948 949 EXPECT_EQ("int i; // single line trailing comment", 950 format("int i;\\\n// single line trailing comment")); 951 952 verifyGoogleFormat("int a; // Trailing comment."); 953 954 verifyFormat("someFunction(anotherFunction( // Force break.\n" 955 " parameter));"); 956 957 verifyGoogleFormat("#endif // HEADER_GUARD"); 958 959 verifyFormat("const char *test[] = {\n" 960 " // A\n" 961 " \"aaaa\",\n" 962 " // B\n" 963 " \"aaaaa\"};"); 964 verifyGoogleFormat( 965 "aaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 966 " aaaaaaaaaaaaaaaaaaaaaa); // 81_cols_with_this_comment"); 967 EXPECT_EQ("D(a, {\n" 968 " // test\n" 969 " int a;\n" 970 "});", 971 format("D(a, {\n" 972 "// test\n" 973 "int a;\n" 974 "});")); 975 976 EXPECT_EQ("lineWith(); // comment\n" 977 "// at start\n" 978 "otherLine();", 979 format("lineWith(); // comment\n" 980 "// at start\n" 981 "otherLine();")); 982 EXPECT_EQ("lineWith(); // comment\n" 983 "/*\n" 984 " * at start */\n" 985 "otherLine();", 986 format("lineWith(); // comment\n" 987 "/*\n" 988 " * at start */\n" 989 "otherLine();")); 990 EXPECT_EQ("lineWith(); // comment\n" 991 " // at start\n" 992 "otherLine();", 993 format("lineWith(); // comment\n" 994 " // at start\n" 995 "otherLine();")); 996 997 EXPECT_EQ("lineWith(); // comment\n" 998 "// at start\n" 999 "otherLine(); // comment", 1000 format("lineWith(); // comment\n" 1001 "// at start\n" 1002 "otherLine(); // comment")); 1003 EXPECT_EQ("lineWith();\n" 1004 "// at start\n" 1005 "otherLine(); // comment", 1006 format("lineWith();\n" 1007 " // at start\n" 1008 "otherLine(); // comment")); 1009 EXPECT_EQ("// first\n" 1010 "// at start\n" 1011 "otherLine(); // comment", 1012 format("// first\n" 1013 " // at start\n" 1014 "otherLine(); // comment")); 1015 EXPECT_EQ("f();\n" 1016 "// first\n" 1017 "// at start\n" 1018 "otherLine(); // comment", 1019 format("f();\n" 1020 "// first\n" 1021 " // at start\n" 1022 "otherLine(); // comment")); 1023 verifyFormat("f(); // comment\n" 1024 "// first\n" 1025 "// at start\n" 1026 "otherLine();"); 1027 EXPECT_EQ("f(); // comment\n" 1028 "// first\n" 1029 "// at start\n" 1030 "otherLine();", 1031 format("f(); // comment\n" 1032 "// first\n" 1033 " // at start\n" 1034 "otherLine();")); 1035 EXPECT_EQ("f(); // comment\n" 1036 " // first\n" 1037 "// at start\n" 1038 "otherLine();", 1039 format("f(); // comment\n" 1040 " // first\n" 1041 "// at start\n" 1042 "otherLine();")); 1043 EXPECT_EQ("void f() {\n" 1044 " lineWith(); // comment\n" 1045 " // at start\n" 1046 "}", 1047 format("void f() {\n" 1048 " lineWith(); // comment\n" 1049 " // at start\n" 1050 "}")); 1051 EXPECT_EQ("int xy; // a\n" 1052 "int z; // b", 1053 format("int xy; // a\n" 1054 "int z; //b")); 1055 EXPECT_EQ("int xy; // a\n" 1056 "int z; // bb", 1057 format("int xy; // a\n" 1058 "int z; //bb", 1059 getLLVMStyleWithColumns(12))); 1060 1061 verifyFormat("#define A \\\n" 1062 " int i; /* iiiiiiiiiiiiiiiiiiiii */ \\\n" 1063 " int jjjjjjjjjjjjjjjjjjjjjjjj; /* */", 1064 getLLVMStyleWithColumns(60)); 1065 verifyFormat( 1066 "#define A \\\n" 1067 " int i; /* iiiiiiiiiiiiiiiiiiiii */ \\\n" 1068 " int jjjjjjjjjjjjjjjjjjjjjjjj; /* */", 1069 getLLVMStyleWithColumns(61)); 1070 1071 verifyFormat("if ( // This is some comment\n" 1072 " x + 3) {\n" 1073 "}"); 1074 EXPECT_EQ("if ( // This is some comment\n" 1075 " // spanning two lines\n" 1076 " x + 3) {\n" 1077 "}", 1078 format("if( // This is some comment\n" 1079 " // spanning two lines\n" 1080 " x + 3) {\n" 1081 "}")); 1082 1083 verifyNoCrash("/\\\n/"); 1084 verifyNoCrash("/\\\n* */"); 1085 // The 0-character somehow makes the lexer return a proper comment. 1086 verifyNoCrash(StringRef("/*\\\0\n/", 6)); 1087 } 1088 1089 TEST_F(FormatTest, KeepsParameterWithTrailingCommentsOnTheirOwnLine) { 1090 EXPECT_EQ("SomeFunction(a,\n" 1091 " b, // comment\n" 1092 " c);", 1093 format("SomeFunction(a,\n" 1094 " b, // comment\n" 1095 " c);")); 1096 EXPECT_EQ("SomeFunction(a, b,\n" 1097 " // comment\n" 1098 " c);", 1099 format("SomeFunction(a,\n" 1100 " b,\n" 1101 " // comment\n" 1102 " c);")); 1103 EXPECT_EQ("SomeFunction(a, b, // comment (unclear relation)\n" 1104 " c);", 1105 format("SomeFunction(a, b, // comment (unclear relation)\n" 1106 " c);")); 1107 EXPECT_EQ("SomeFunction(a, // comment\n" 1108 " b,\n" 1109 " c); // comment", 1110 format("SomeFunction(a, // comment\n" 1111 " b,\n" 1112 " c); // comment")); 1113 } 1114 1115 TEST_F(FormatTest, RemovesTrailingWhitespaceOfComments) { 1116 EXPECT_EQ("// comment", format("// comment ")); 1117 EXPECT_EQ("int aaaaaaa, bbbbbbb; // comment", 1118 format("int aaaaaaa, bbbbbbb; // comment ", 1119 getLLVMStyleWithColumns(33))); 1120 EXPECT_EQ("// comment\\\n", format("// comment\\\n \t \v \f ")); 1121 EXPECT_EQ("// comment \\\n", format("// comment \\\n \t \v \f ")); 1122 } 1123 1124 TEST_F(FormatTest, UnderstandsBlockComments) { 1125 verifyFormat("f(/*noSpaceAfterParameterNamingComment=*/true);"); 1126 verifyFormat("void f() { g(/*aaa=*/x, /*bbb=*/!y, /*c=*/::c); }"); 1127 EXPECT_EQ("f(aaaaaaaaaaaaaaaaaaaaaaaaa, /* Trailing comment for aa... */\n" 1128 " bbbbbbbbbbbbbbbbbbbbbbbbb);", 1129 format("f(aaaaaaaaaaaaaaaaaaaaaaaaa , \\\n" 1130 "/* Trailing comment for aa... */\n" 1131 " bbbbbbbbbbbbbbbbbbbbbbbbb);")); 1132 EXPECT_EQ( 1133 "f(aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 1134 " /* Leading comment for bb... */ bbbbbbbbbbbbbbbbbbbbbbbbb);", 1135 format("f(aaaaaaaaaaaaaaaaaaaaaaaaa , \n" 1136 "/* Leading comment for bb... */ bbbbbbbbbbbbbbbbbbbbbbbbb);")); 1137 EXPECT_EQ( 1138 "void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 1139 " aaaaaaaaaaaaaaaaaa,\n" 1140 " aaaaaaaaaaaaaaaaaa) { /*aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa*/\n" 1141 "}", 1142 format("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 1143 " aaaaaaaaaaaaaaaaaa ,\n" 1144 " aaaaaaaaaaaaaaaaaa) { /*aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa*/\n" 1145 "}")); 1146 1147 FormatStyle NoBinPacking = getLLVMStyle(); 1148 NoBinPacking.BinPackParameters = false; 1149 verifyFormat("aaaaaaaa(/* parameter 1 */ aaaaaa,\n" 1150 " /* parameter 2 */ aaaaaa,\n" 1151 " /* parameter 3 */ aaaaaa,\n" 1152 " /* parameter 4 */ aaaaaa);", 1153 NoBinPacking); 1154 1155 // Aligning block comments in macros. 1156 verifyGoogleFormat("#define A \\\n" 1157 " int i; /*a*/ \\\n" 1158 " int jjj; /*b*/"); 1159 } 1160 1161 TEST_F(FormatTest, AlignsBlockComments) { 1162 EXPECT_EQ("/*\n" 1163 " * Really multi-line\n" 1164 " * comment.\n" 1165 " */\n" 1166 "void f() {}", 1167 format(" /*\n" 1168 " * Really multi-line\n" 1169 " * comment.\n" 1170 " */\n" 1171 " void f() {}")); 1172 EXPECT_EQ("class C {\n" 1173 " /*\n" 1174 " * Another multi-line\n" 1175 " * comment.\n" 1176 " */\n" 1177 " void f() {}\n" 1178 "};", 1179 format("class C {\n" 1180 "/*\n" 1181 " * Another multi-line\n" 1182 " * comment.\n" 1183 " */\n" 1184 "void f() {}\n" 1185 "};")); 1186 EXPECT_EQ("/*\n" 1187 " 1. This is a comment with non-trivial formatting.\n" 1188 " 1.1. We have to indent/outdent all lines equally\n" 1189 " 1.1.1. to keep the formatting.\n" 1190 " */", 1191 format(" /*\n" 1192 " 1. This is a comment with non-trivial formatting.\n" 1193 " 1.1. We have to indent/outdent all lines equally\n" 1194 " 1.1.1. to keep the formatting.\n" 1195 " */")); 1196 EXPECT_EQ("/*\n" 1197 "Don't try to outdent if there's not enough indentation.\n" 1198 "*/", 1199 format(" /*\n" 1200 " Don't try to outdent if there's not enough indentation.\n" 1201 " */")); 1202 1203 EXPECT_EQ("int i; /* Comment with empty...\n" 1204 " *\n" 1205 " * line. */", 1206 format("int i; /* Comment with empty...\n" 1207 " *\n" 1208 " * line. */")); 1209 EXPECT_EQ("int foobar = 0; /* comment */\n" 1210 "int bar = 0; /* multiline\n" 1211 " comment 1 */\n" 1212 "int baz = 0; /* multiline\n" 1213 " comment 2 */\n" 1214 "int bzz = 0; /* multiline\n" 1215 " comment 3 */", 1216 format("int foobar = 0; /* comment */\n" 1217 "int bar = 0; /* multiline\n" 1218 " comment 1 */\n" 1219 "int baz = 0; /* multiline\n" 1220 " comment 2 */\n" 1221 "int bzz = 0; /* multiline\n" 1222 " comment 3 */")); 1223 EXPECT_EQ("int foobar = 0; /* comment */\n" 1224 "int bar = 0; /* multiline\n" 1225 " comment */\n" 1226 "int baz = 0; /* multiline\n" 1227 "comment */", 1228 format("int foobar = 0; /* comment */\n" 1229 "int bar = 0; /* multiline\n" 1230 "comment */\n" 1231 "int baz = 0; /* multiline\n" 1232 "comment */")); 1233 } 1234 1235 TEST_F(FormatTest, CommentReflowingCanBeTurnedOff) { 1236 FormatStyle Style = getLLVMStyleWithColumns(20); 1237 Style.ReflowComments = false; 1238 verifyFormat("// aaaaaaaaa aaaaaaaaaa aaaaaaaaaa", Style); 1239 verifyFormat("/* aaaaaaaaa aaaaaaaaaa aaaaaaaaaa */", Style); 1240 } 1241 1242 TEST_F(FormatTest, CorrectlyHandlesLengthOfBlockComments) { 1243 EXPECT_EQ("double *x; /* aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 1244 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa */", 1245 format("double *x; /* aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 1246 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa */")); 1247 EXPECT_EQ( 1248 "void ffffffffffff(\n" 1249 " int aaaaaaaa, int bbbbbbbb,\n" 1250 " int cccccccccccc) { /*\n" 1251 " aaaaaaaaaa\n" 1252 " aaaaaaaaaaaaa\n" 1253 " bbbbbbbbbbbbbb\n" 1254 " bbbbbbbbbb\n" 1255 " */\n" 1256 "}", 1257 format("void ffffffffffff(int aaaaaaaa, int bbbbbbbb, int cccccccccccc)\n" 1258 "{ /*\n" 1259 " aaaaaaaaaa aaaaaaaaaaaaa\n" 1260 " bbbbbbbbbbbbbb bbbbbbbbbb\n" 1261 " */\n" 1262 "}", 1263 getLLVMStyleWithColumns(40))); 1264 } 1265 1266 TEST_F(FormatTest, DontBreakNonTrailingBlockComments) { 1267 EXPECT_EQ("void ffffffffff(\n" 1268 " int aaaaa /* test */);", 1269 format("void ffffffffff(int aaaaa /* test */);", 1270 getLLVMStyleWithColumns(35))); 1271 } 1272 1273 TEST_F(FormatTest, SplitsLongCxxComments) { 1274 EXPECT_EQ("// A comment that\n" 1275 "// doesn't fit on\n" 1276 "// one line", 1277 format("// A comment that doesn't fit on one line", 1278 getLLVMStyleWithColumns(20))); 1279 EXPECT_EQ("/// A comment that\n" 1280 "/// doesn't fit on\n" 1281 "/// one line", 1282 format("/// A comment that doesn't fit on one line", 1283 getLLVMStyleWithColumns(20))); 1284 EXPECT_EQ("//! A comment that\n" 1285 "//! doesn't fit on\n" 1286 "//! one line", 1287 format("//! A comment that doesn't fit on one line", 1288 getLLVMStyleWithColumns(20))); 1289 EXPECT_EQ("// a b c d\n" 1290 "// e f g\n" 1291 "// h i j k", 1292 format("// a b c d e f g h i j k", getLLVMStyleWithColumns(10))); 1293 EXPECT_EQ( 1294 "// a b c d\n" 1295 "// e f g\n" 1296 "// h i j k", 1297 format("\\\n// a b c d e f g h i j k", getLLVMStyleWithColumns(10))); 1298 EXPECT_EQ("if (true) // A comment that\n" 1299 " // doesn't fit on\n" 1300 " // one line", 1301 format("if (true) // A comment that doesn't fit on one line ", 1302 getLLVMStyleWithColumns(30))); 1303 EXPECT_EQ("// Don't_touch_leading_whitespace", 1304 format("// Don't_touch_leading_whitespace", 1305 getLLVMStyleWithColumns(20))); 1306 EXPECT_EQ("// Add leading\n" 1307 "// whitespace", 1308 format("//Add leading whitespace", getLLVMStyleWithColumns(20))); 1309 EXPECT_EQ("/// Add leading\n" 1310 "/// whitespace", 1311 format("///Add leading whitespace", getLLVMStyleWithColumns(20))); 1312 EXPECT_EQ("//! Add leading\n" 1313 "//! whitespace", 1314 format("//!Add leading whitespace", getLLVMStyleWithColumns(20))); 1315 EXPECT_EQ("// whitespace", format("//whitespace", getLLVMStyle())); 1316 EXPECT_EQ("// Even if it makes the line exceed the column\n" 1317 "// limit", 1318 format("//Even if it makes the line exceed the column limit", 1319 getLLVMStyleWithColumns(51))); 1320 EXPECT_EQ("//--But not here", format("//--But not here", getLLVMStyle())); 1321 1322 EXPECT_EQ("// aa bb cc dd", 1323 format("// aa bb cc dd ", 1324 getLLVMStyleWithColumns(15))); 1325 1326 EXPECT_EQ("// A comment before\n" 1327 "// a macro\n" 1328 "// definition\n" 1329 "#define a b", 1330 format("// A comment before a macro definition\n" 1331 "#define a b", 1332 getLLVMStyleWithColumns(20))); 1333 EXPECT_EQ("void ffffff(\n" 1334 " int aaaaaaaaa, // wwww\n" 1335 " int bbbbbbbbbb, // xxxxxxx\n" 1336 " // yyyyyyyyyy\n" 1337 " int c, int d, int e) {}", 1338 format("void ffffff(\n" 1339 " int aaaaaaaaa, // wwww\n" 1340 " int bbbbbbbbbb, // xxxxxxx yyyyyyyyyy\n" 1341 " int c, int d, int e) {}", 1342 getLLVMStyleWithColumns(40))); 1343 EXPECT_EQ("//\t aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 1344 format("//\t aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 1345 getLLVMStyleWithColumns(20))); 1346 EXPECT_EQ( 1347 "#define XXX // a b c d\n" 1348 " // e f g h", 1349 format("#define XXX // a b c d e f g h", getLLVMStyleWithColumns(22))); 1350 EXPECT_EQ( 1351 "#define XXX // q w e r\n" 1352 " // t y u i", 1353 format("#define XXX //q w e r t y u i", getLLVMStyleWithColumns(22))); 1354 } 1355 1356 TEST_F(FormatTest, PreservesHangingIndentInCxxComments) { 1357 EXPECT_EQ("// A comment\n" 1358 "// that doesn't\n" 1359 "// fit on one\n" 1360 "// line", 1361 format("// A comment that doesn't fit on one line", 1362 getLLVMStyleWithColumns(20))); 1363 EXPECT_EQ("/// A comment\n" 1364 "/// that doesn't\n" 1365 "/// fit on one\n" 1366 "/// line", 1367 format("/// A comment that doesn't fit on one line", 1368 getLLVMStyleWithColumns(20))); 1369 } 1370 1371 TEST_F(FormatTest, DontSplitLineCommentsWithEscapedNewlines) { 1372 EXPECT_EQ("// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 1373 "// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 1374 "// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 1375 format("// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 1376 "// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 1377 "// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")); 1378 EXPECT_EQ("int a; // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1379 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1380 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", 1381 format("int a; // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1382 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1383 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", 1384 getLLVMStyleWithColumns(50))); 1385 // FIXME: One day we might want to implement adjustment of leading whitespace 1386 // of the consecutive lines in this kind of comment: 1387 EXPECT_EQ("double\n" 1388 " a; // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1389 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1390 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", 1391 format("double a; // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1392 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1393 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", 1394 getLLVMStyleWithColumns(49))); 1395 } 1396 1397 TEST_F(FormatTest, DontSplitLineCommentsWithPragmas) { 1398 FormatStyle Pragmas = getLLVMStyleWithColumns(30); 1399 Pragmas.CommentPragmas = "^ IWYU pragma:"; 1400 EXPECT_EQ( 1401 "// IWYU pragma: aaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbb", 1402 format("// IWYU pragma: aaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbb", Pragmas)); 1403 EXPECT_EQ( 1404 "/* IWYU pragma: aaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbb */", 1405 format("/* IWYU pragma: aaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbb */", Pragmas)); 1406 } 1407 1408 TEST_F(FormatTest, PriorityOfCommentBreaking) { 1409 EXPECT_EQ("if (xxx ==\n" 1410 " yyy && // aaaaaaaaaaaa bbbbbbbbb\n" 1411 " zzz)\n" 1412 " q();", 1413 format("if (xxx == yyy && // aaaaaaaaaaaa bbbbbbbbb\n" 1414 " zzz) q();", 1415 getLLVMStyleWithColumns(40))); 1416 EXPECT_EQ("if (xxxxxxxxxx ==\n" 1417 " yyy && // aaaaaa bbbbbbbb cccc\n" 1418 " zzz)\n" 1419 " q();", 1420 format("if (xxxxxxxxxx == yyy && // aaaaaa bbbbbbbb cccc\n" 1421 " zzz) q();", 1422 getLLVMStyleWithColumns(40))); 1423 EXPECT_EQ("if (xxxxxxxxxx &&\n" 1424 " yyy || // aaaaaa bbbbbbbb cccc\n" 1425 " zzz)\n" 1426 " q();", 1427 format("if (xxxxxxxxxx && yyy || // aaaaaa bbbbbbbb cccc\n" 1428 " zzz) q();", 1429 getLLVMStyleWithColumns(40))); 1430 EXPECT_EQ("fffffffff(\n" 1431 " &xxx, // aaaaaaaaaaaa bbbbbbbbbbb\n" 1432 " zzz);", 1433 format("fffffffff(&xxx, // aaaaaaaaaaaa bbbbbbbbbbb\n" 1434 " zzz);", 1435 getLLVMStyleWithColumns(40))); 1436 } 1437 1438 TEST_F(FormatTest, MultiLineCommentsInDefines) { 1439 EXPECT_EQ("#define A(x) /* \\\n" 1440 " a comment \\\n" 1441 " inside */ \\\n" 1442 " f();", 1443 format("#define A(x) /* \\\n" 1444 " a comment \\\n" 1445 " inside */ \\\n" 1446 " f();", 1447 getLLVMStyleWithColumns(17))); 1448 EXPECT_EQ("#define A( \\\n" 1449 " x) /* \\\n" 1450 " a comment \\\n" 1451 " inside */ \\\n" 1452 " f();", 1453 format("#define A( \\\n" 1454 " x) /* \\\n" 1455 " a comment \\\n" 1456 " inside */ \\\n" 1457 " f();", 1458 getLLVMStyleWithColumns(17))); 1459 } 1460 1461 TEST_F(FormatTest, ParsesCommentsAdjacentToPPDirectives) { 1462 EXPECT_EQ("namespace {}\n// Test\n#define A", 1463 format("namespace {}\n // Test\n#define A")); 1464 EXPECT_EQ("namespace {}\n/* Test */\n#define A", 1465 format("namespace {}\n /* Test */\n#define A")); 1466 EXPECT_EQ("namespace {}\n/* Test */ #define A", 1467 format("namespace {}\n /* Test */ #define A")); 1468 } 1469 1470 TEST_F(FormatTest, SplitsLongLinesInComments) { 1471 EXPECT_EQ("/* This is a long\n" 1472 " * comment that\n" 1473 " * doesn't\n" 1474 " * fit on one line.\n" 1475 " */", 1476 format("/* " 1477 "This is a long " 1478 "comment that " 1479 "doesn't " 1480 "fit on one line. */", 1481 getLLVMStyleWithColumns(20))); 1482 EXPECT_EQ( 1483 "/* a b c d\n" 1484 " * e f g\n" 1485 " * h i j k\n" 1486 " */", 1487 format("/* a b c d e f g h i j k */", getLLVMStyleWithColumns(10))); 1488 EXPECT_EQ( 1489 "/* a b c d\n" 1490 " * e f g\n" 1491 " * h i j k\n" 1492 " */", 1493 format("\\\n/* a b c d e f g h i j k */", getLLVMStyleWithColumns(10))); 1494 EXPECT_EQ("/*\n" 1495 "This is a long\n" 1496 "comment that doesn't\n" 1497 "fit on one line.\n" 1498 "*/", 1499 format("/*\n" 1500 "This is a long " 1501 "comment that doesn't " 1502 "fit on one line. \n" 1503 "*/", 1504 getLLVMStyleWithColumns(20))); 1505 EXPECT_EQ("/*\n" 1506 " * This is a long\n" 1507 " * comment that\n" 1508 " * doesn't fit on\n" 1509 " * one line.\n" 1510 " */", 1511 format("/* \n" 1512 " * This is a long " 1513 " comment that " 1514 " doesn't fit on " 1515 " one line. \n" 1516 " */", 1517 getLLVMStyleWithColumns(20))); 1518 EXPECT_EQ("/*\n" 1519 " * This_is_a_comment_with_words_that_dont_fit_on_one_line\n" 1520 " * so_it_should_be_broken\n" 1521 " * wherever_a_space_occurs\n" 1522 " */", 1523 format("/*\n" 1524 " * This_is_a_comment_with_words_that_dont_fit_on_one_line " 1525 " so_it_should_be_broken " 1526 " wherever_a_space_occurs \n" 1527 " */", 1528 getLLVMStyleWithColumns(20))); 1529 EXPECT_EQ("/*\n" 1530 " * This_comment_can_not_be_broken_into_lines\n" 1531 " */", 1532 format("/*\n" 1533 " * This_comment_can_not_be_broken_into_lines\n" 1534 " */", 1535 getLLVMStyleWithColumns(20))); 1536 EXPECT_EQ("{\n" 1537 " /*\n" 1538 " This is another\n" 1539 " long comment that\n" 1540 " doesn't fit on one\n" 1541 " line 1234567890\n" 1542 " */\n" 1543 "}", 1544 format("{\n" 1545 "/*\n" 1546 "This is another " 1547 " long comment that " 1548 " doesn't fit on one" 1549 " line 1234567890\n" 1550 "*/\n" 1551 "}", 1552 getLLVMStyleWithColumns(20))); 1553 EXPECT_EQ("{\n" 1554 " /*\n" 1555 " * This i s\n" 1556 " * another comment\n" 1557 " * t hat doesn' t\n" 1558 " * fit on one l i\n" 1559 " * n e\n" 1560 " */\n" 1561 "}", 1562 format("{\n" 1563 "/*\n" 1564 " * This i s" 1565 " another comment" 1566 " t hat doesn' t" 1567 " fit on one l i" 1568 " n e\n" 1569 " */\n" 1570 "}", 1571 getLLVMStyleWithColumns(20))); 1572 EXPECT_EQ("/*\n" 1573 " * This is a long\n" 1574 " * comment that\n" 1575 " * doesn't fit on\n" 1576 " * one line\n" 1577 " */", 1578 format(" /*\n" 1579 " * This is a long comment that doesn't fit on one line\n" 1580 " */", 1581 getLLVMStyleWithColumns(20))); 1582 EXPECT_EQ("{\n" 1583 " if (something) /* This is a\n" 1584 " long\n" 1585 " comment */\n" 1586 " ;\n" 1587 "}", 1588 format("{\n" 1589 " if (something) /* This is a long comment */\n" 1590 " ;\n" 1591 "}", 1592 getLLVMStyleWithColumns(30))); 1593 1594 EXPECT_EQ("/* A comment before\n" 1595 " * a macro\n" 1596 " * definition */\n" 1597 "#define a b", 1598 format("/* A comment before a macro definition */\n" 1599 "#define a b", 1600 getLLVMStyleWithColumns(20))); 1601 1602 EXPECT_EQ("/* some comment\n" 1603 " * a comment\n" 1604 "* that we break\n" 1605 " * another comment\n" 1606 "* we have to break\n" 1607 "* a left comment\n" 1608 " */", 1609 format(" /* some comment\n" 1610 " * a comment that we break\n" 1611 " * another comment we have to break\n" 1612 "* a left comment\n" 1613 " */", 1614 getLLVMStyleWithColumns(20))); 1615 1616 EXPECT_EQ("/**\n" 1617 " * multiline block\n" 1618 " * comment\n" 1619 " *\n" 1620 " */", 1621 format("/**\n" 1622 " * multiline block comment\n" 1623 " *\n" 1624 " */", 1625 getLLVMStyleWithColumns(20))); 1626 1627 EXPECT_EQ("/*\n" 1628 "\n" 1629 "\n" 1630 " */\n", 1631 format(" /* \n" 1632 " \n" 1633 " \n" 1634 " */\n")); 1635 1636 EXPECT_EQ("/* a a */", 1637 format("/* a a */", getLLVMStyleWithColumns(15))); 1638 EXPECT_EQ("/* a a bc */", 1639 format("/* a a bc */", getLLVMStyleWithColumns(15))); 1640 EXPECT_EQ("/* aaa aaa\n" 1641 " * aaaaa */", 1642 format("/* aaa aaa aaaaa */", getLLVMStyleWithColumns(15))); 1643 EXPECT_EQ("/* aaa aaa\n" 1644 " * aaaaa */", 1645 format("/* aaa aaa aaaaa */", getLLVMStyleWithColumns(15))); 1646 } 1647 1648 TEST_F(FormatTest, SplitsLongLinesInCommentsInPreprocessor) { 1649 EXPECT_EQ("#define X \\\n" 1650 " /* \\\n" 1651 " Test \\\n" 1652 " Macro comment \\\n" 1653 " with a long \\\n" 1654 " line \\\n" 1655 " */ \\\n" 1656 " A + B", 1657 format("#define X \\\n" 1658 " /*\n" 1659 " Test\n" 1660 " Macro comment with a long line\n" 1661 " */ \\\n" 1662 " A + B", 1663 getLLVMStyleWithColumns(20))); 1664 EXPECT_EQ("#define X \\\n" 1665 " /* Macro comment \\\n" 1666 " with a long \\\n" 1667 " line */ \\\n" 1668 " A + B", 1669 format("#define X \\\n" 1670 " /* Macro comment with a long\n" 1671 " line */ \\\n" 1672 " A + B", 1673 getLLVMStyleWithColumns(20))); 1674 EXPECT_EQ("#define X \\\n" 1675 " /* Macro comment \\\n" 1676 " * with a long \\\n" 1677 " * line */ \\\n" 1678 " A + B", 1679 format("#define X \\\n" 1680 " /* Macro comment with a long line */ \\\n" 1681 " A + B", 1682 getLLVMStyleWithColumns(20))); 1683 } 1684 1685 TEST_F(FormatTest, CommentsInStaticInitializers) { 1686 EXPECT_EQ( 1687 "static SomeType type = {aaaaaaaaaaaaaaaaaaaa, /* comment */\n" 1688 " aaaaaaaaaaaaaaaaaaaa /* comment */,\n" 1689 " /* comment */ aaaaaaaaaaaaaaaaaaaa,\n" 1690 " aaaaaaaaaaaaaaaaaaaa, // comment\n" 1691 " aaaaaaaaaaaaaaaaaaaa};", 1692 format("static SomeType type = { aaaaaaaaaaaaaaaaaaaa , /* comment */\n" 1693 " aaaaaaaaaaaaaaaaaaaa /* comment */ ,\n" 1694 " /* comment */ aaaaaaaaaaaaaaaaaaaa ,\n" 1695 " aaaaaaaaaaaaaaaaaaaa , // comment\n" 1696 " aaaaaaaaaaaaaaaaaaaa };")); 1697 verifyFormat("static SomeType type = {aaaaaaaaaaa, // comment for aa...\n" 1698 " bbbbbbbbbbb, ccccccccccc};"); 1699 verifyFormat("static SomeType type = {aaaaaaaaaaa,\n" 1700 " // comment for bb....\n" 1701 " bbbbbbbbbbb, ccccccccccc};"); 1702 verifyGoogleFormat( 1703 "static SomeType type = {aaaaaaaaaaa, // comment for aa...\n" 1704 " bbbbbbbbbbb, ccccccccccc};"); 1705 verifyGoogleFormat("static SomeType type = {aaaaaaaaaaa,\n" 1706 " // comment for bb....\n" 1707 " bbbbbbbbbbb, ccccccccccc};"); 1708 1709 verifyFormat("S s = {{a, b, c}, // Group #1\n" 1710 " {d, e, f}, // Group #2\n" 1711 " {g, h, i}}; // Group #3"); 1712 verifyFormat("S s = {{// Group #1\n" 1713 " a, b, c},\n" 1714 " {// Group #2\n" 1715 " d, e, f},\n" 1716 " {// Group #3\n" 1717 " g, h, i}};"); 1718 1719 EXPECT_EQ("S s = {\n" 1720 " // Some comment\n" 1721 " a,\n" 1722 "\n" 1723 " // Comment after empty line\n" 1724 " b}", 1725 format("S s = {\n" 1726 " // Some comment\n" 1727 " a,\n" 1728 " \n" 1729 " // Comment after empty line\n" 1730 " b\n" 1731 "}")); 1732 EXPECT_EQ("S s = {\n" 1733 " /* Some comment */\n" 1734 " a,\n" 1735 "\n" 1736 " /* Comment after empty line */\n" 1737 " b}", 1738 format("S s = {\n" 1739 " /* Some comment */\n" 1740 " a,\n" 1741 " \n" 1742 " /* Comment after empty line */\n" 1743 " b\n" 1744 "}")); 1745 verifyFormat("const uint8_t aaaaaaaaaaaaaaaaaaaaaa[0] = {\n" 1746 " 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // comment\n" 1747 " 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // comment\n" 1748 " 0x00, 0x00, 0x00, 0x00}; // comment\n"); 1749 } 1750 1751 TEST_F(FormatTest, IgnoresIf0Contents) { 1752 EXPECT_EQ("#if 0\n" 1753 "}{)(&*(^%%#%@! fsadj f;ldjs ,:;| <<<>>>][)(][\n" 1754 "#endif\n" 1755 "void f() {}", 1756 format("#if 0\n" 1757 "}{)(&*(^%%#%@! fsadj f;ldjs ,:;| <<<>>>][)(][\n" 1758 "#endif\n" 1759 "void f( ) { }")); 1760 EXPECT_EQ("#if false\n" 1761 "void f( ) { }\n" 1762 "#endif\n" 1763 "void g() {}\n", 1764 format("#if false\n" 1765 "void f( ) { }\n" 1766 "#endif\n" 1767 "void g( ) { }\n")); 1768 EXPECT_EQ("enum E {\n" 1769 " One,\n" 1770 " Two,\n" 1771 "#if 0\n" 1772 "Three,\n" 1773 " Four,\n" 1774 "#endif\n" 1775 " Five\n" 1776 "};", 1777 format("enum E {\n" 1778 " One,Two,\n" 1779 "#if 0\n" 1780 "Three,\n" 1781 " Four,\n" 1782 "#endif\n" 1783 " Five};")); 1784 EXPECT_EQ("enum F {\n" 1785 " One,\n" 1786 "#if 1\n" 1787 " Two,\n" 1788 "#if 0\n" 1789 "Three,\n" 1790 " Four,\n" 1791 "#endif\n" 1792 " Five\n" 1793 "#endif\n" 1794 "};", 1795 format("enum F {\n" 1796 "One,\n" 1797 "#if 1\n" 1798 "Two,\n" 1799 "#if 0\n" 1800 "Three,\n" 1801 " Four,\n" 1802 "#endif\n" 1803 "Five\n" 1804 "#endif\n" 1805 "};")); 1806 EXPECT_EQ("enum G {\n" 1807 " One,\n" 1808 "#if 0\n" 1809 "Two,\n" 1810 "#else\n" 1811 " Three,\n" 1812 "#endif\n" 1813 " Four\n" 1814 "};", 1815 format("enum G {\n" 1816 "One,\n" 1817 "#if 0\n" 1818 "Two,\n" 1819 "#else\n" 1820 "Three,\n" 1821 "#endif\n" 1822 "Four\n" 1823 "};")); 1824 EXPECT_EQ("enum H {\n" 1825 " One,\n" 1826 "#if 0\n" 1827 "#ifdef Q\n" 1828 "Two,\n" 1829 "#else\n" 1830 "Three,\n" 1831 "#endif\n" 1832 "#endif\n" 1833 " Four\n" 1834 "};", 1835 format("enum H {\n" 1836 "One,\n" 1837 "#if 0\n" 1838 "#ifdef Q\n" 1839 "Two,\n" 1840 "#else\n" 1841 "Three,\n" 1842 "#endif\n" 1843 "#endif\n" 1844 "Four\n" 1845 "};")); 1846 EXPECT_EQ("enum I {\n" 1847 " One,\n" 1848 "#if /* test */ 0 || 1\n" 1849 "Two,\n" 1850 "Three,\n" 1851 "#endif\n" 1852 " Four\n" 1853 "};", 1854 format("enum I {\n" 1855 "One,\n" 1856 "#if /* test */ 0 || 1\n" 1857 "Two,\n" 1858 "Three,\n" 1859 "#endif\n" 1860 "Four\n" 1861 "};")); 1862 EXPECT_EQ("enum J {\n" 1863 " One,\n" 1864 "#if 0\n" 1865 "#if 0\n" 1866 "Two,\n" 1867 "#else\n" 1868 "Three,\n" 1869 "#endif\n" 1870 "Four,\n" 1871 "#endif\n" 1872 " Five\n" 1873 "};", 1874 format("enum J {\n" 1875 "One,\n" 1876 "#if 0\n" 1877 "#if 0\n" 1878 "Two,\n" 1879 "#else\n" 1880 "Three,\n" 1881 "#endif\n" 1882 "Four,\n" 1883 "#endif\n" 1884 "Five\n" 1885 "};")); 1886 } 1887 1888 //===----------------------------------------------------------------------===// 1889 // Tests for classes, namespaces, etc. 1890 //===----------------------------------------------------------------------===// 1891 1892 TEST_F(FormatTest, DoesNotBreakSemiAfterClassDecl) { 1893 verifyFormat("class A {};"); 1894 } 1895 1896 TEST_F(FormatTest, UnderstandsAccessSpecifiers) { 1897 verifyFormat("class A {\n" 1898 "public:\n" 1899 "public: // comment\n" 1900 "protected:\n" 1901 "private:\n" 1902 " void f() {}\n" 1903 "};"); 1904 verifyGoogleFormat("class A {\n" 1905 " public:\n" 1906 " protected:\n" 1907 " private:\n" 1908 " void f() {}\n" 1909 "};"); 1910 verifyFormat("class A {\n" 1911 "public slots:\n" 1912 " void f1() {}\n" 1913 "public Q_SLOTS:\n" 1914 " void f2() {}\n" 1915 "protected slots:\n" 1916 " void f3() {}\n" 1917 "protected Q_SLOTS:\n" 1918 " void f4() {}\n" 1919 "private slots:\n" 1920 " void f5() {}\n" 1921 "private Q_SLOTS:\n" 1922 " void f6() {}\n" 1923 "signals:\n" 1924 " void g1();\n" 1925 "Q_SIGNALS:\n" 1926 " void g2();\n" 1927 "};"); 1928 1929 // Don't interpret 'signals' the wrong way. 1930 verifyFormat("signals.set();"); 1931 verifyFormat("for (Signals signals : f()) {\n}"); 1932 verifyFormat("{\n" 1933 " signals.set(); // This needs indentation.\n" 1934 "}"); 1935 } 1936 1937 TEST_F(FormatTest, SeparatesLogicalBlocks) { 1938 EXPECT_EQ("class A {\n" 1939 "public:\n" 1940 " void f();\n" 1941 "\n" 1942 "private:\n" 1943 " void g() {}\n" 1944 " // test\n" 1945 "protected:\n" 1946 " int h;\n" 1947 "};", 1948 format("class A {\n" 1949 "public:\n" 1950 "void f();\n" 1951 "private:\n" 1952 "void g() {}\n" 1953 "// test\n" 1954 "protected:\n" 1955 "int h;\n" 1956 "};")); 1957 EXPECT_EQ("class A {\n" 1958 "protected:\n" 1959 "public:\n" 1960 " void f();\n" 1961 "};", 1962 format("class A {\n" 1963 "protected:\n" 1964 "\n" 1965 "public:\n" 1966 "\n" 1967 " void f();\n" 1968 "};")); 1969 1970 // Even ensure proper spacing inside macros. 1971 EXPECT_EQ("#define B \\\n" 1972 " class A { \\\n" 1973 " protected: \\\n" 1974 " public: \\\n" 1975 " void f(); \\\n" 1976 " };", 1977 format("#define B \\\n" 1978 " class A { \\\n" 1979 " protected: \\\n" 1980 " \\\n" 1981 " public: \\\n" 1982 " \\\n" 1983 " void f(); \\\n" 1984 " };", 1985 getGoogleStyle())); 1986 // But don't remove empty lines after macros ending in access specifiers. 1987 EXPECT_EQ("#define A private:\n" 1988 "\n" 1989 "int i;", 1990 format("#define A private:\n" 1991 "\n" 1992 "int i;")); 1993 } 1994 1995 TEST_F(FormatTest, FormatsClasses) { 1996 verifyFormat("class A : public B {};"); 1997 verifyFormat("class A : public ::B {};"); 1998 1999 verifyFormat( 2000 "class AAAAAAAAAAAAAAAAAAAA : public BBBBBBBBBBBBBBBBBBBBBBBBBBBBBB,\n" 2001 " public CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC {};"); 2002 verifyFormat("class AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n" 2003 " : public BBBBBBBBBBBBBBBBBBBBBBBBBBBBBB,\n" 2004 " public CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC {};"); 2005 verifyFormat( 2006 "class A : public B, public C, public D, public E, public F {};"); 2007 verifyFormat("class AAAAAAAAAAAA : public B,\n" 2008 " public C,\n" 2009 " public D,\n" 2010 " public E,\n" 2011 " public F,\n" 2012 " public G {};"); 2013 2014 verifyFormat("class\n" 2015 " ReallyReallyLongClassName {\n" 2016 " int i;\n" 2017 "};", 2018 getLLVMStyleWithColumns(32)); 2019 verifyFormat("struct aaaaaaaaaaaaa : public aaaaaaaaaaaaaaaaaaa< // break\n" 2020 " aaaaaaaaaaaaaaaa> {};"); 2021 verifyFormat("struct aaaaaaaaaaaaaaaaaaaa\n" 2022 " : public aaaaaaaaaaaaaaaaaaa<aaaaaaaaaaaaaaaaaaaaa,\n" 2023 " aaaaaaaaaaaaaaaaaaaaaa> {};"); 2024 verifyFormat("template <class R, class C>\n" 2025 "struct Aaaaaaaaaaaaaaaaa<R (C::*)(int) const>\n" 2026 " : Aaaaaaaaaaaaaaaaa<R (C::*)(int)> {};"); 2027 verifyFormat("class ::A::B {};"); 2028 } 2029 2030 TEST_F(FormatTest, FormatsVariableDeclarationsAfterStructOrClass) { 2031 verifyFormat("class A {\n} a, b;"); 2032 verifyFormat("struct A {\n} a, b;"); 2033 verifyFormat("union A {\n} a;"); 2034 } 2035 2036 TEST_F(FormatTest, FormatsEnum) { 2037 verifyFormat("enum {\n" 2038 " Zero,\n" 2039 " One = 1,\n" 2040 " Two = One + 1,\n" 2041 " Three = (One + Two),\n" 2042 " Four = (Zero && (One ^ Two)) | (One << Two),\n" 2043 " Five = (One, Two, Three, Four, 5)\n" 2044 "};"); 2045 verifyGoogleFormat("enum {\n" 2046 " Zero,\n" 2047 " One = 1,\n" 2048 " Two = One + 1,\n" 2049 " Three = (One + Two),\n" 2050 " Four = (Zero && (One ^ Two)) | (One << Two),\n" 2051 " Five = (One, Two, Three, Four, 5)\n" 2052 "};"); 2053 verifyFormat("enum Enum {};"); 2054 verifyFormat("enum {};"); 2055 verifyFormat("enum X E {} d;"); 2056 verifyFormat("enum __attribute__((...)) E {} d;"); 2057 verifyFormat("enum __declspec__((...)) E {} d;"); 2058 verifyFormat("enum {\n" 2059 " Bar = Foo<int, int>::value\n" 2060 "};", 2061 getLLVMStyleWithColumns(30)); 2062 2063 verifyFormat("enum ShortEnum { A, B, C };"); 2064 verifyGoogleFormat("enum ShortEnum { A, B, C };"); 2065 2066 EXPECT_EQ("enum KeepEmptyLines {\n" 2067 " ONE,\n" 2068 "\n" 2069 " TWO,\n" 2070 "\n" 2071 " THREE\n" 2072 "}", 2073 format("enum KeepEmptyLines {\n" 2074 " ONE,\n" 2075 "\n" 2076 " TWO,\n" 2077 "\n" 2078 "\n" 2079 " THREE\n" 2080 "}")); 2081 verifyFormat("enum E { // comment\n" 2082 " ONE,\n" 2083 " TWO\n" 2084 "};\n" 2085 "int i;"); 2086 // Not enums. 2087 verifyFormat("enum X f() {\n" 2088 " a();\n" 2089 " return 42;\n" 2090 "}"); 2091 verifyFormat("enum X Type::f() {\n" 2092 " a();\n" 2093 " return 42;\n" 2094 "}"); 2095 verifyFormat("enum ::X f() {\n" 2096 " a();\n" 2097 " return 42;\n" 2098 "}"); 2099 verifyFormat("enum ns::X f() {\n" 2100 " a();\n" 2101 " return 42;\n" 2102 "}"); 2103 } 2104 2105 TEST_F(FormatTest, FormatsEnumsWithErrors) { 2106 verifyFormat("enum Type {\n" 2107 " One = 0; // These semicolons should be commas.\n" 2108 " Two = 1;\n" 2109 "};"); 2110 verifyFormat("namespace n {\n" 2111 "enum Type {\n" 2112 " One,\n" 2113 " Two, // missing };\n" 2114 " int i;\n" 2115 "}\n" 2116 "void g() {}"); 2117 } 2118 2119 TEST_F(FormatTest, FormatsEnumStruct) { 2120 verifyFormat("enum struct {\n" 2121 " Zero,\n" 2122 " One = 1,\n" 2123 " Two = One + 1,\n" 2124 " Three = (One + Two),\n" 2125 " Four = (Zero && (One ^ Two)) | (One << Two),\n" 2126 " Five = (One, Two, Three, Four, 5)\n" 2127 "};"); 2128 verifyFormat("enum struct Enum {};"); 2129 verifyFormat("enum struct {};"); 2130 verifyFormat("enum struct X E {} d;"); 2131 verifyFormat("enum struct __attribute__((...)) E {} d;"); 2132 verifyFormat("enum struct __declspec__((...)) E {} d;"); 2133 verifyFormat("enum struct X f() {\n a();\n return 42;\n}"); 2134 } 2135 2136 TEST_F(FormatTest, FormatsEnumClass) { 2137 verifyFormat("enum class {\n" 2138 " Zero,\n" 2139 " One = 1,\n" 2140 " Two = One + 1,\n" 2141 " Three = (One + Two),\n" 2142 " Four = (Zero && (One ^ Two)) | (One << Two),\n" 2143 " Five = (One, Two, Three, Four, 5)\n" 2144 "};"); 2145 verifyFormat("enum class Enum {};"); 2146 verifyFormat("enum class {};"); 2147 verifyFormat("enum class X E {} d;"); 2148 verifyFormat("enum class __attribute__((...)) E {} d;"); 2149 verifyFormat("enum class __declspec__((...)) E {} d;"); 2150 verifyFormat("enum class X f() {\n a();\n return 42;\n}"); 2151 } 2152 2153 TEST_F(FormatTest, FormatsEnumTypes) { 2154 verifyFormat("enum X : int {\n" 2155 " A, // Force multiple lines.\n" 2156 " B\n" 2157 "};"); 2158 verifyFormat("enum X : int { A, B };"); 2159 verifyFormat("enum X : std::uint32_t { A, B };"); 2160 } 2161 2162 TEST_F(FormatTest, FormatsNSEnums) { 2163 verifyGoogleFormat("typedef NS_ENUM(NSInteger, SomeName) { AAA, BBB }"); 2164 verifyGoogleFormat("typedef NS_ENUM(NSInteger, MyType) {\n" 2165 " // Information about someDecentlyLongValue.\n" 2166 " someDecentlyLongValue,\n" 2167 " // Information about anotherDecentlyLongValue.\n" 2168 " anotherDecentlyLongValue,\n" 2169 " // Information about aThirdDecentlyLongValue.\n" 2170 " aThirdDecentlyLongValue\n" 2171 "};"); 2172 verifyGoogleFormat("typedef NS_OPTIONS(NSInteger, MyType) {\n" 2173 " a = 1,\n" 2174 " b = 2,\n" 2175 " c = 3,\n" 2176 "};"); 2177 verifyGoogleFormat("typedef CF_ENUM(NSInteger, MyType) {\n" 2178 " a = 1,\n" 2179 " b = 2,\n" 2180 " c = 3,\n" 2181 "};"); 2182 verifyGoogleFormat("typedef CF_OPTIONS(NSInteger, MyType) {\n" 2183 " a = 1,\n" 2184 " b = 2,\n" 2185 " c = 3,\n" 2186 "};"); 2187 } 2188 2189 TEST_F(FormatTest, FormatsBitfields) { 2190 verifyFormat("struct Bitfields {\n" 2191 " unsigned sClass : 8;\n" 2192 " unsigned ValueKind : 2;\n" 2193 "};"); 2194 verifyFormat("struct A {\n" 2195 " int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa : 1,\n" 2196 " bbbbbbbbbbbbbbbbbbbbbbbbb;\n" 2197 "};"); 2198 verifyFormat("struct MyStruct {\n" 2199 " uchar data;\n" 2200 " uchar : 8;\n" 2201 " uchar : 8;\n" 2202 " uchar other;\n" 2203 "};"); 2204 } 2205 2206 TEST_F(FormatTest, FormatsNamespaces) { 2207 verifyFormat("namespace some_namespace {\n" 2208 "class A {};\n" 2209 "void f() { f(); }\n" 2210 "}"); 2211 verifyFormat("namespace {\n" 2212 "class A {};\n" 2213 "void f() { f(); }\n" 2214 "}"); 2215 verifyFormat("inline namespace X {\n" 2216 "class A {};\n" 2217 "void f() { f(); }\n" 2218 "}"); 2219 verifyFormat("using namespace some_namespace;\n" 2220 "class A {};\n" 2221 "void f() { f(); }"); 2222 2223 // This code is more common than we thought; if we 2224 // layout this correctly the semicolon will go into 2225 // its own line, which is undesirable. 2226 verifyFormat("namespace {};"); 2227 verifyFormat("namespace {\n" 2228 "class A {};\n" 2229 "};"); 2230 2231 verifyFormat("namespace {\n" 2232 "int SomeVariable = 0; // comment\n" 2233 "} // namespace"); 2234 EXPECT_EQ("#ifndef HEADER_GUARD\n" 2235 "#define HEADER_GUARD\n" 2236 "namespace my_namespace {\n" 2237 "int i;\n" 2238 "} // my_namespace\n" 2239 "#endif // HEADER_GUARD", 2240 format("#ifndef HEADER_GUARD\n" 2241 " #define HEADER_GUARD\n" 2242 " namespace my_namespace {\n" 2243 "int i;\n" 2244 "} // my_namespace\n" 2245 "#endif // HEADER_GUARD")); 2246 2247 EXPECT_EQ("namespace A::B {\n" 2248 "class C {};\n" 2249 "}", 2250 format("namespace A::B {\n" 2251 "class C {};\n" 2252 "}")); 2253 2254 FormatStyle Style = getLLVMStyle(); 2255 Style.NamespaceIndentation = FormatStyle::NI_All; 2256 EXPECT_EQ("namespace out {\n" 2257 " int i;\n" 2258 " namespace in {\n" 2259 " int i;\n" 2260 " } // namespace\n" 2261 "} // namespace", 2262 format("namespace out {\n" 2263 "int i;\n" 2264 "namespace in {\n" 2265 "int i;\n" 2266 "} // namespace\n" 2267 "} // namespace", 2268 Style)); 2269 2270 Style.NamespaceIndentation = FormatStyle::NI_Inner; 2271 EXPECT_EQ("namespace out {\n" 2272 "int i;\n" 2273 "namespace in {\n" 2274 " int i;\n" 2275 "} // namespace\n" 2276 "} // namespace", 2277 format("namespace out {\n" 2278 "int i;\n" 2279 "namespace in {\n" 2280 "int i;\n" 2281 "} // namespace\n" 2282 "} // namespace", 2283 Style)); 2284 } 2285 2286 TEST_F(FormatTest, FormatsExternC) { verifyFormat("extern \"C\" {\nint a;"); } 2287 2288 TEST_F(FormatTest, FormatsInlineASM) { 2289 verifyFormat("asm(\"xyz\" : \"=a\"(a), \"=d\"(b) : \"a\"(data));"); 2290 verifyFormat("asm(\"nop\" ::: \"memory\");"); 2291 verifyFormat( 2292 "asm(\"movq\\t%%rbx, %%rsi\\n\\t\"\n" 2293 " \"cpuid\\n\\t\"\n" 2294 " \"xchgq\\t%%rbx, %%rsi\\n\\t\"\n" 2295 " : \"=a\"(*rEAX), \"=S\"(*rEBX), \"=c\"(*rECX), \"=d\"(*rEDX)\n" 2296 " : \"a\"(value));"); 2297 EXPECT_EQ( 2298 "void NS_InvokeByIndex(void *that, unsigned int methodIndex) {\n" 2299 " __asm {\n" 2300 " mov edx,[that] // vtable in edx\n" 2301 " mov eax,methodIndex\n" 2302 " call [edx][eax*4] // stdcall\n" 2303 " }\n" 2304 "}", 2305 format("void NS_InvokeByIndex(void *that, unsigned int methodIndex) {\n" 2306 " __asm {\n" 2307 " mov edx,[that] // vtable in edx\n" 2308 " mov eax,methodIndex\n" 2309 " call [edx][eax*4] // stdcall\n" 2310 " }\n" 2311 "}")); 2312 EXPECT_EQ("_asm {\n" 2313 " xor eax, eax;\n" 2314 " cpuid;\n" 2315 "}", 2316 format("_asm {\n" 2317 " xor eax, eax;\n" 2318 " cpuid;\n" 2319 "}")); 2320 verifyFormat("void function() {\n" 2321 " // comment\n" 2322 " asm(\"\");\n" 2323 "}"); 2324 EXPECT_EQ("__asm {\n" 2325 "}\n" 2326 "int i;", 2327 format("__asm {\n" 2328 "}\n" 2329 "int i;")); 2330 } 2331 2332 TEST_F(FormatTest, FormatTryCatch) { 2333 verifyFormat("try {\n" 2334 " throw a * b;\n" 2335 "} catch (int a) {\n" 2336 " // Do nothing.\n" 2337 "} catch (...) {\n" 2338 " exit(42);\n" 2339 "}"); 2340 2341 // Function-level try statements. 2342 verifyFormat("int f() try { return 4; } catch (...) {\n" 2343 " return 5;\n" 2344 "}"); 2345 verifyFormat("class A {\n" 2346 " int a;\n" 2347 " A() try : a(0) {\n" 2348 " } catch (...) {\n" 2349 " throw;\n" 2350 " }\n" 2351 "};\n"); 2352 2353 // Incomplete try-catch blocks. 2354 verifyIncompleteFormat("try {} catch ("); 2355 } 2356 2357 TEST_F(FormatTest, FormatSEHTryCatch) { 2358 verifyFormat("__try {\n" 2359 " int a = b * c;\n" 2360 "} __except (EXCEPTION_EXECUTE_HANDLER) {\n" 2361 " // Do nothing.\n" 2362 "}"); 2363 2364 verifyFormat("__try {\n" 2365 " int a = b * c;\n" 2366 "} __finally {\n" 2367 " // Do nothing.\n" 2368 "}"); 2369 2370 verifyFormat("DEBUG({\n" 2371 " __try {\n" 2372 " } __finally {\n" 2373 " }\n" 2374 "});\n"); 2375 } 2376 2377 TEST_F(FormatTest, IncompleteTryCatchBlocks) { 2378 verifyFormat("try {\n" 2379 " f();\n" 2380 "} catch {\n" 2381 " g();\n" 2382 "}"); 2383 verifyFormat("try {\n" 2384 " f();\n" 2385 "} catch (A a) MACRO(x) {\n" 2386 " g();\n" 2387 "} catch (B b) MACRO(x) {\n" 2388 " g();\n" 2389 "}"); 2390 } 2391 2392 TEST_F(FormatTest, FormatTryCatchBraceStyles) { 2393 FormatStyle Style = getLLVMStyle(); 2394 for (auto BraceStyle : {FormatStyle::BS_Attach, FormatStyle::BS_Mozilla, 2395 FormatStyle::BS_WebKit}) { 2396 Style.BreakBeforeBraces = BraceStyle; 2397 verifyFormat("try {\n" 2398 " // something\n" 2399 "} catch (...) {\n" 2400 " // something\n" 2401 "}", 2402 Style); 2403 } 2404 Style.BreakBeforeBraces = FormatStyle::BS_Stroustrup; 2405 verifyFormat("try {\n" 2406 " // something\n" 2407 "}\n" 2408 "catch (...) {\n" 2409 " // something\n" 2410 "}", 2411 Style); 2412 verifyFormat("__try {\n" 2413 " // something\n" 2414 "}\n" 2415 "__finally {\n" 2416 " // something\n" 2417 "}", 2418 Style); 2419 verifyFormat("@try {\n" 2420 " // something\n" 2421 "}\n" 2422 "@finally {\n" 2423 " // something\n" 2424 "}", 2425 Style); 2426 Style.BreakBeforeBraces = FormatStyle::BS_Allman; 2427 verifyFormat("try\n" 2428 "{\n" 2429 " // something\n" 2430 "}\n" 2431 "catch (...)\n" 2432 "{\n" 2433 " // something\n" 2434 "}", 2435 Style); 2436 Style.BreakBeforeBraces = FormatStyle::BS_GNU; 2437 verifyFormat("try\n" 2438 " {\n" 2439 " // something\n" 2440 " }\n" 2441 "catch (...)\n" 2442 " {\n" 2443 " // something\n" 2444 " }", 2445 Style); 2446 Style.BreakBeforeBraces = FormatStyle::BS_Custom; 2447 Style.BraceWrapping.BeforeCatch = true; 2448 verifyFormat("try {\n" 2449 " // something\n" 2450 "}\n" 2451 "catch (...) {\n" 2452 " // something\n" 2453 "}", 2454 Style); 2455 } 2456 2457 TEST_F(FormatTest, FormatObjCTryCatch) { 2458 verifyFormat("@try {\n" 2459 " f();\n" 2460 "} @catch (NSException e) {\n" 2461 " @throw;\n" 2462 "} @finally {\n" 2463 " exit(42);\n" 2464 "}"); 2465 verifyFormat("DEBUG({\n" 2466 " @try {\n" 2467 " } @finally {\n" 2468 " }\n" 2469 "});\n"); 2470 } 2471 2472 TEST_F(FormatTest, FormatObjCAutoreleasepool) { 2473 FormatStyle Style = getLLVMStyle(); 2474 verifyFormat("@autoreleasepool {\n" 2475 " f();\n" 2476 "}\n" 2477 "@autoreleasepool {\n" 2478 " f();\n" 2479 "}\n", 2480 Style); 2481 Style.BreakBeforeBraces = FormatStyle::BS_Allman; 2482 verifyFormat("@autoreleasepool\n" 2483 "{\n" 2484 " f();\n" 2485 "}\n" 2486 "@autoreleasepool\n" 2487 "{\n" 2488 " f();\n" 2489 "}\n", 2490 Style); 2491 } 2492 2493 TEST_F(FormatTest, StaticInitializers) { 2494 verifyFormat("static SomeClass SC = {1, 'a'};"); 2495 2496 verifyFormat("static SomeClass WithALoooooooooooooooooooongName = {\n" 2497 " 100000000, " 2498 "\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"};"); 2499 2500 // Here, everything other than the "}" would fit on a line. 2501 verifyFormat("static int LooooooooooooooooooooooooongVariable[1] = {\n" 2502 " 10000000000000000000000000};"); 2503 EXPECT_EQ("S s = {a,\n" 2504 "\n" 2505 " b};", 2506 format("S s = {\n" 2507 " a,\n" 2508 "\n" 2509 " b\n" 2510 "};")); 2511 2512 // FIXME: This would fit into the column limit if we'd fit "{ {" on the first 2513 // line. However, the formatting looks a bit off and this probably doesn't 2514 // happen often in practice. 2515 verifyFormat("static int Variable[1] = {\n" 2516 " {1000000000000000000000000000000000000}};", 2517 getLLVMStyleWithColumns(40)); 2518 } 2519 2520 TEST_F(FormatTest, DesignatedInitializers) { 2521 verifyFormat("const struct A a = {.a = 1, .b = 2};"); 2522 verifyFormat("const struct A a = {.aaaaaaaaaa = 1,\n" 2523 " .bbbbbbbbbb = 2,\n" 2524 " .cccccccccc = 3,\n" 2525 " .dddddddddd = 4,\n" 2526 " .eeeeeeeeee = 5};"); 2527 verifyFormat("const struct Aaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaa = {\n" 2528 " .aaaaaaaaaaaaaaaaaaaaaaaaaaa = 1,\n" 2529 " .bbbbbbbbbbbbbbbbbbbbbbbbbbb = 2,\n" 2530 " .ccccccccccccccccccccccccccc = 3,\n" 2531 " .ddddddddddddddddddddddddddd = 4,\n" 2532 " .eeeeeeeeeeeeeeeeeeeeeeeeeee = 5};"); 2533 2534 verifyGoogleFormat("const struct A a = {.a = 1, .b = 2};"); 2535 } 2536 2537 TEST_F(FormatTest, NestedStaticInitializers) { 2538 verifyFormat("static A x = {{{}}};\n"); 2539 verifyFormat("static A x = {{{init1, init2, init3, init4},\n" 2540 " {init1, init2, init3, init4}}};", 2541 getLLVMStyleWithColumns(50)); 2542 2543 verifyFormat("somes Status::global_reps[3] = {\n" 2544 " {kGlobalRef, OK_CODE, NULL, NULL, NULL},\n" 2545 " {kGlobalRef, CANCELLED_CODE, NULL, NULL, NULL},\n" 2546 " {kGlobalRef, UNKNOWN_CODE, NULL, NULL, NULL}};", 2547 getLLVMStyleWithColumns(60)); 2548 verifyGoogleFormat("SomeType Status::global_reps[3] = {\n" 2549 " {kGlobalRef, OK_CODE, NULL, NULL, NULL},\n" 2550 " {kGlobalRef, CANCELLED_CODE, NULL, NULL, NULL},\n" 2551 " {kGlobalRef, UNKNOWN_CODE, NULL, NULL, NULL}};"); 2552 verifyFormat("CGRect cg_rect = {{rect.fLeft, rect.fTop},\n" 2553 " {rect.fRight - rect.fLeft, rect.fBottom - " 2554 "rect.fTop}};"); 2555 2556 verifyFormat( 2557 "SomeArrayOfSomeType a = {\n" 2558 " {{1, 2, 3},\n" 2559 " {1, 2, 3},\n" 2560 " {111111111111111111111111111111, 222222222222222222222222222222,\n" 2561 " 333333333333333333333333333333},\n" 2562 " {1, 2, 3},\n" 2563 " {1, 2, 3}}};"); 2564 verifyFormat( 2565 "SomeArrayOfSomeType a = {\n" 2566 " {{1, 2, 3}},\n" 2567 " {{1, 2, 3}},\n" 2568 " {{111111111111111111111111111111, 222222222222222222222222222222,\n" 2569 " 333333333333333333333333333333}},\n" 2570 " {{1, 2, 3}},\n" 2571 " {{1, 2, 3}}};"); 2572 2573 verifyFormat("struct {\n" 2574 " unsigned bit;\n" 2575 " const char *const name;\n" 2576 "} kBitsToOs[] = {{kOsMac, \"Mac\"},\n" 2577 " {kOsWin, \"Windows\"},\n" 2578 " {kOsLinux, \"Linux\"},\n" 2579 " {kOsCrOS, \"Chrome OS\"}};"); 2580 verifyFormat("struct {\n" 2581 " unsigned bit;\n" 2582 " const char *const name;\n" 2583 "} kBitsToOs[] = {\n" 2584 " {kOsMac, \"Mac\"},\n" 2585 " {kOsWin, \"Windows\"},\n" 2586 " {kOsLinux, \"Linux\"},\n" 2587 " {kOsCrOS, \"Chrome OS\"},\n" 2588 "};"); 2589 } 2590 2591 TEST_F(FormatTest, FormatsSmallMacroDefinitionsInSingleLine) { 2592 verifyFormat("#define ALooooooooooooooooooooooooooooooooooooooongMacro(" 2593 " \\\n" 2594 " aLoooooooooooooooooooooooongFuuuuuuuuuuuuuunctiooooooooo)"); 2595 } 2596 2597 TEST_F(FormatTest, DoesNotBreakPureVirtualFunctionDefinition) { 2598 verifyFormat("virtual void write(ELFWriter *writerrr,\n" 2599 " OwningPtr<FileOutputBuffer> &buffer) = 0;"); 2600 2601 // Do break defaulted and deleted functions. 2602 verifyFormat("virtual void ~Deeeeeeeestructor() =\n" 2603 " default;", 2604 getLLVMStyleWithColumns(40)); 2605 verifyFormat("virtual void ~Deeeeeeeestructor() =\n" 2606 " delete;", 2607 getLLVMStyleWithColumns(40)); 2608 } 2609 2610 TEST_F(FormatTest, BreaksStringLiteralsOnlyInDefine) { 2611 verifyFormat("# 1111 \"/aaaaaaaaa/aaaaaaaaaaaaaaaaaaa/aaaaaaaa.cpp\" 2 3", 2612 getLLVMStyleWithColumns(40)); 2613 verifyFormat("#line 11111 \"/aaaaaaaaa/aaaaaaaaaaaaaaaaaaa/aaaaaaaa.cpp\"", 2614 getLLVMStyleWithColumns(40)); 2615 EXPECT_EQ("#define Q \\\n" 2616 " \"/aaaaaaaaa/aaaaaaaaaaaaaaaaaaa/\" \\\n" 2617 " \"aaaaaaaa.cpp\"", 2618 format("#define Q \"/aaaaaaaaa/aaaaaaaaaaaaaaaaaaa/aaaaaaaa.cpp\"", 2619 getLLVMStyleWithColumns(40))); 2620 } 2621 2622 TEST_F(FormatTest, UnderstandsLinePPDirective) { 2623 EXPECT_EQ("# 123 \"A string literal\"", 2624 format(" # 123 \"A string literal\"")); 2625 } 2626 2627 TEST_F(FormatTest, LayoutUnknownPPDirective) { 2628 EXPECT_EQ("#;", format("#;")); 2629 verifyFormat("#\n;\n;\n;"); 2630 } 2631 2632 TEST_F(FormatTest, UnescapedEndOfLineEndsPPDirective) { 2633 EXPECT_EQ("#line 42 \"test\"\n", 2634 format("# \\\n line \\\n 42 \\\n \"test\"\n")); 2635 EXPECT_EQ("#define A B\n", format("# \\\n define \\\n A \\\n B\n", 2636 getLLVMStyleWithColumns(12))); 2637 } 2638 2639 TEST_F(FormatTest, EndOfFileEndsPPDirective) { 2640 EXPECT_EQ("#line 42 \"test\"", 2641 format("# \\\n line \\\n 42 \\\n \"test\"")); 2642 EXPECT_EQ("#define A B", format("# \\\n define \\\n A \\\n B")); 2643 } 2644 2645 TEST_F(FormatTest, DoesntRemoveUnknownTokens) { 2646 verifyFormat("#define A \\x20"); 2647 verifyFormat("#define A \\ x20"); 2648 EXPECT_EQ("#define A \\ x20", format("#define A \\ x20")); 2649 verifyFormat("#define A ''"); 2650 verifyFormat("#define A ''qqq"); 2651 verifyFormat("#define A `qqq"); 2652 verifyFormat("f(\"aaaa, bbbb, \"\\\"ccccc\\\"\");"); 2653 EXPECT_EQ("const char *c = STRINGIFY(\n" 2654 "\\na : b);", 2655 format("const char * c = STRINGIFY(\n" 2656 "\\na : b);")); 2657 2658 verifyFormat("a\r\\"); 2659 verifyFormat("a\v\\"); 2660 verifyFormat("a\f\\"); 2661 } 2662 2663 TEST_F(FormatTest, IndentsPPDirectiveInReducedSpace) { 2664 verifyFormat("#define A(BB)", getLLVMStyleWithColumns(13)); 2665 verifyFormat("#define A( \\\n BB)", getLLVMStyleWithColumns(12)); 2666 verifyFormat("#define A( \\\n A, B)", getLLVMStyleWithColumns(12)); 2667 // FIXME: We never break before the macro name. 2668 verifyFormat("#define AA( \\\n B)", getLLVMStyleWithColumns(12)); 2669 2670 verifyFormat("#define A A\n#define A A"); 2671 verifyFormat("#define A(X) A\n#define A A"); 2672 2673 verifyFormat("#define Something Other", getLLVMStyleWithColumns(23)); 2674 verifyFormat("#define Something \\\n Other", getLLVMStyleWithColumns(22)); 2675 } 2676 2677 TEST_F(FormatTest, HandlePreprocessorDirectiveContext) { 2678 EXPECT_EQ("// somecomment\n" 2679 "#include \"a.h\"\n" 2680 "#define A( \\\n" 2681 " A, B)\n" 2682 "#include \"b.h\"\n" 2683 "// somecomment\n", 2684 format(" // somecomment\n" 2685 " #include \"a.h\"\n" 2686 "#define A(A,\\\n" 2687 " B)\n" 2688 " #include \"b.h\"\n" 2689 " // somecomment\n", 2690 getLLVMStyleWithColumns(13))); 2691 } 2692 2693 TEST_F(FormatTest, LayoutSingleHash) { EXPECT_EQ("#\na;", format("#\na;")); } 2694 2695 TEST_F(FormatTest, LayoutCodeInMacroDefinitions) { 2696 EXPECT_EQ("#define A \\\n" 2697 " c; \\\n" 2698 " e;\n" 2699 "f;", 2700 format("#define A c; e;\n" 2701 "f;", 2702 getLLVMStyleWithColumns(14))); 2703 } 2704 2705 TEST_F(FormatTest, LayoutRemainingTokens) { EXPECT_EQ("{}", format("{}")); } 2706 2707 TEST_F(FormatTest, MacroDefinitionInsideStatement) { 2708 EXPECT_EQ("int x,\n" 2709 "#define A\n" 2710 " y;", 2711 format("int x,\n#define A\ny;")); 2712 } 2713 2714 TEST_F(FormatTest, HashInMacroDefinition) { 2715 EXPECT_EQ("#define A(c) L#c", format("#define A(c) L#c", getLLVMStyle())); 2716 verifyFormat("#define A \\\n b #c;", getLLVMStyleWithColumns(11)); 2717 verifyFormat("#define A \\\n" 2718 " { \\\n" 2719 " f(#c); \\\n" 2720 " }", 2721 getLLVMStyleWithColumns(11)); 2722 2723 verifyFormat("#define A(X) \\\n" 2724 " void function##X()", 2725 getLLVMStyleWithColumns(22)); 2726 2727 verifyFormat("#define A(a, b, c) \\\n" 2728 " void a##b##c()", 2729 getLLVMStyleWithColumns(22)); 2730 2731 verifyFormat("#define A void # ## #", getLLVMStyleWithColumns(22)); 2732 } 2733 2734 TEST_F(FormatTest, RespectWhitespaceInMacroDefinitions) { 2735 EXPECT_EQ("#define A (x)", format("#define A (x)")); 2736 EXPECT_EQ("#define A(x)", format("#define A(x)")); 2737 } 2738 2739 TEST_F(FormatTest, EmptyLinesInMacroDefinitions) { 2740 EXPECT_EQ("#define A b;", format("#define A \\\n" 2741 " \\\n" 2742 " b;", 2743 getLLVMStyleWithColumns(25))); 2744 EXPECT_EQ("#define A \\\n" 2745 " \\\n" 2746 " a; \\\n" 2747 " b;", 2748 format("#define A \\\n" 2749 " \\\n" 2750 " a; \\\n" 2751 " b;", 2752 getLLVMStyleWithColumns(11))); 2753 EXPECT_EQ("#define A \\\n" 2754 " a; \\\n" 2755 " \\\n" 2756 " b;", 2757 format("#define A \\\n" 2758 " a; \\\n" 2759 " \\\n" 2760 " b;", 2761 getLLVMStyleWithColumns(11))); 2762 } 2763 2764 TEST_F(FormatTest, MacroDefinitionsWithIncompleteCode) { 2765 verifyIncompleteFormat("#define A :"); 2766 verifyFormat("#define SOMECASES \\\n" 2767 " case 1: \\\n" 2768 " case 2\n", 2769 getLLVMStyleWithColumns(20)); 2770 verifyFormat("#define MACRO(a) \\\n" 2771 " if (a) \\\n" 2772 " f(); \\\n" 2773 " else \\\n" 2774 " g()", 2775 getLLVMStyleWithColumns(18)); 2776 verifyFormat("#define A template <typename T>"); 2777 verifyIncompleteFormat("#define STR(x) #x\n" 2778 "f(STR(this_is_a_string_literal{));"); 2779 verifyFormat("#pragma omp threadprivate( \\\n" 2780 " y)), // expected-warning", 2781 getLLVMStyleWithColumns(28)); 2782 verifyFormat("#d, = };"); 2783 verifyFormat("#if \"a"); 2784 verifyIncompleteFormat("({\n" 2785 "#define b \\\n" 2786 " } \\\n" 2787 " a\n" 2788 "a", 2789 getLLVMStyleWithColumns(15)); 2790 verifyFormat("#define A \\\n" 2791 " { \\\n" 2792 " {\n" 2793 "#define B \\\n" 2794 " } \\\n" 2795 " }", 2796 getLLVMStyleWithColumns(15)); 2797 verifyNoCrash("#if a\na(\n#else\n#endif\n{a"); 2798 verifyNoCrash("a={0,1\n#if a\n#else\n;\n#endif\n}"); 2799 verifyNoCrash("#if a\na(\n#else\n#endif\n) a {a,b,c,d,f,g};"); 2800 verifyNoCrash("#ifdef A\n a(\n #else\n #endif\n) = []() { \n)}"); 2801 } 2802 2803 TEST_F(FormatTest, MacrosWithoutTrailingSemicolon) { 2804 verifyFormat("SOME_TYPE_NAME abc;"); // Gated on the newline. 2805 EXPECT_EQ("class A : public QObject {\n" 2806 " Q_OBJECT\n" 2807 "\n" 2808 " A() {}\n" 2809 "};", 2810 format("class A : public QObject {\n" 2811 " Q_OBJECT\n" 2812 "\n" 2813 " A() {\n}\n" 2814 "} ;")); 2815 EXPECT_EQ("MACRO\n" 2816 "/*static*/ int i;", 2817 format("MACRO\n" 2818 " /*static*/ int i;")); 2819 EXPECT_EQ("SOME_MACRO\n" 2820 "namespace {\n" 2821 "void f();\n" 2822 "}", 2823 format("SOME_MACRO\n" 2824 " namespace {\n" 2825 "void f( );\n" 2826 "}")); 2827 // Only if the identifier contains at least 5 characters. 2828 EXPECT_EQ("HTTP f();", format("HTTP\nf();")); 2829 EXPECT_EQ("MACRO\nf();", format("MACRO\nf();")); 2830 // Only if everything is upper case. 2831 EXPECT_EQ("class A : public QObject {\n" 2832 " Q_Object A() {}\n" 2833 "};", 2834 format("class A : public QObject {\n" 2835 " Q_Object\n" 2836 " A() {\n}\n" 2837 "} ;")); 2838 2839 // Only if the next line can actually start an unwrapped line. 2840 EXPECT_EQ("SOME_WEIRD_LOG_MACRO << SomeThing;", 2841 format("SOME_WEIRD_LOG_MACRO\n" 2842 "<< SomeThing;")); 2843 2844 verifyFormat("VISIT_GL_CALL(GenBuffers, void, (GLsizei n, GLuint* buffers), " 2845 "(n, buffers))\n", 2846 getChromiumStyle(FormatStyle::LK_Cpp)); 2847 } 2848 2849 TEST_F(FormatTest, MacroCallsWithoutTrailingSemicolon) { 2850 EXPECT_EQ("INITIALIZE_PASS_BEGIN(ScopDetection, \"polly-detect\")\n" 2851 "INITIALIZE_AG_DEPENDENCY(AliasAnalysis)\n" 2852 "INITIALIZE_PASS_DEPENDENCY(DominatorTree)\n" 2853 "class X {};\n" 2854 "INITIALIZE_PASS_END(ScopDetection, \"polly-detect\")\n" 2855 "int *createScopDetectionPass() { return 0; }", 2856 format(" INITIALIZE_PASS_BEGIN(ScopDetection, \"polly-detect\")\n" 2857 " INITIALIZE_AG_DEPENDENCY(AliasAnalysis)\n" 2858 " INITIALIZE_PASS_DEPENDENCY(DominatorTree)\n" 2859 " class X {};\n" 2860 " INITIALIZE_PASS_END(ScopDetection, \"polly-detect\")\n" 2861 " int *createScopDetectionPass() { return 0; }")); 2862 // FIXME: We could probably treat IPC_BEGIN_MESSAGE_MAP/IPC_END_MESSAGE_MAP as 2863 // braces, so that inner block is indented one level more. 2864 EXPECT_EQ("int q() {\n" 2865 " IPC_BEGIN_MESSAGE_MAP(WebKitTestController, message)\n" 2866 " IPC_MESSAGE_HANDLER(xxx, qqq)\n" 2867 " IPC_END_MESSAGE_MAP()\n" 2868 "}", 2869 format("int q() {\n" 2870 " IPC_BEGIN_MESSAGE_MAP(WebKitTestController, message)\n" 2871 " IPC_MESSAGE_HANDLER(xxx, qqq)\n" 2872 " IPC_END_MESSAGE_MAP()\n" 2873 "}")); 2874 2875 // Same inside macros. 2876 EXPECT_EQ("#define LIST(L) \\\n" 2877 " L(A) \\\n" 2878 " L(B) \\\n" 2879 " L(C)", 2880 format("#define LIST(L) \\\n" 2881 " L(A) \\\n" 2882 " L(B) \\\n" 2883 " L(C)", 2884 getGoogleStyle())); 2885 2886 // These must not be recognized as macros. 2887 EXPECT_EQ("int q() {\n" 2888 " f(x);\n" 2889 " f(x) {}\n" 2890 " f(x)->g();\n" 2891 " f(x)->*g();\n" 2892 " f(x).g();\n" 2893 " f(x) = x;\n" 2894 " f(x) += x;\n" 2895 " f(x) -= x;\n" 2896 " f(x) *= x;\n" 2897 " f(x) /= x;\n" 2898 " f(x) %= x;\n" 2899 " f(x) &= x;\n" 2900 " f(x) |= x;\n" 2901 " f(x) ^= x;\n" 2902 " f(x) >>= x;\n" 2903 " f(x) <<= x;\n" 2904 " f(x)[y].z();\n" 2905 " LOG(INFO) << x;\n" 2906 " ifstream(x) >> x;\n" 2907 "}\n", 2908 format("int q() {\n" 2909 " f(x)\n;\n" 2910 " f(x)\n {}\n" 2911 " f(x)\n->g();\n" 2912 " f(x)\n->*g();\n" 2913 " f(x)\n.g();\n" 2914 " f(x)\n = x;\n" 2915 " f(x)\n += x;\n" 2916 " f(x)\n -= x;\n" 2917 " f(x)\n *= x;\n" 2918 " f(x)\n /= x;\n" 2919 " f(x)\n %= x;\n" 2920 " f(x)\n &= x;\n" 2921 " f(x)\n |= x;\n" 2922 " f(x)\n ^= x;\n" 2923 " f(x)\n >>= x;\n" 2924 " f(x)\n <<= x;\n" 2925 " f(x)\n[y].z();\n" 2926 " LOG(INFO)\n << x;\n" 2927 " ifstream(x)\n >> x;\n" 2928 "}\n")); 2929 EXPECT_EQ("int q() {\n" 2930 " F(x)\n" 2931 " if (1) {\n" 2932 " }\n" 2933 " F(x)\n" 2934 " while (1) {\n" 2935 " }\n" 2936 " F(x)\n" 2937 " G(x);\n" 2938 " F(x)\n" 2939 " try {\n" 2940 " Q();\n" 2941 " } catch (...) {\n" 2942 " }\n" 2943 "}\n", 2944 format("int q() {\n" 2945 "F(x)\n" 2946 "if (1) {}\n" 2947 "F(x)\n" 2948 "while (1) {}\n" 2949 "F(x)\n" 2950 "G(x);\n" 2951 "F(x)\n" 2952 "try { Q(); } catch (...) {}\n" 2953 "}\n")); 2954 EXPECT_EQ("class A {\n" 2955 " A() : t(0) {}\n" 2956 " A(int i) noexcept() : {}\n" 2957 " A(X x)\n" // FIXME: function-level try blocks are broken. 2958 " try : t(0) {\n" 2959 " } catch (...) {\n" 2960 " }\n" 2961 "};", 2962 format("class A {\n" 2963 " A()\n : t(0) {}\n" 2964 " A(int i)\n noexcept() : {}\n" 2965 " A(X x)\n" 2966 " try : t(0) {} catch (...) {}\n" 2967 "};")); 2968 EXPECT_EQ("class SomeClass {\n" 2969 "public:\n" 2970 " SomeClass() EXCLUSIVE_LOCK_FUNCTION(mu_);\n" 2971 "};", 2972 format("class SomeClass {\n" 2973 "public:\n" 2974 " SomeClass()\n" 2975 " EXCLUSIVE_LOCK_FUNCTION(mu_);\n" 2976 "};")); 2977 EXPECT_EQ("class SomeClass {\n" 2978 "public:\n" 2979 " SomeClass()\n" 2980 " EXCLUSIVE_LOCK_FUNCTION(mu_);\n" 2981 "};", 2982 format("class SomeClass {\n" 2983 "public:\n" 2984 " SomeClass()\n" 2985 " EXCLUSIVE_LOCK_FUNCTION(mu_);\n" 2986 "};", 2987 getLLVMStyleWithColumns(40))); 2988 2989 verifyFormat("MACRO(>)"); 2990 } 2991 2992 TEST_F(FormatTest, LayoutMacroDefinitionsStatementsSpanningBlocks) { 2993 verifyFormat("#define A \\\n" 2994 " f({ \\\n" 2995 " g(); \\\n" 2996 " });", 2997 getLLVMStyleWithColumns(11)); 2998 } 2999 3000 TEST_F(FormatTest, IndentPreprocessorDirectivesAtZero) { 3001 EXPECT_EQ("{\n {\n#define A\n }\n}", format("{{\n#define A\n}}")); 3002 } 3003 3004 TEST_F(FormatTest, FormatHashIfNotAtStartOfLine) { 3005 verifyFormat("{\n { a #c; }\n}"); 3006 } 3007 3008 TEST_F(FormatTest, FormatUnbalancedStructuralElements) { 3009 EXPECT_EQ("#define A \\\n { \\\n {\nint i;", 3010 format("#define A { {\nint i;", getLLVMStyleWithColumns(11))); 3011 EXPECT_EQ("#define A \\\n } \\\n }\nint i;", 3012 format("#define A } }\nint i;", getLLVMStyleWithColumns(11))); 3013 } 3014 3015 TEST_F(FormatTest, EscapedNewlines) { 3016 EXPECT_EQ( 3017 "#define A \\\n int i; \\\n int j;", 3018 format("#define A \\\nint i;\\\n int j;", getLLVMStyleWithColumns(11))); 3019 EXPECT_EQ("#define A\n\nint i;", format("#define A \\\n\n int i;")); 3020 EXPECT_EQ("template <class T> f();", format("\\\ntemplate <class T> f();")); 3021 EXPECT_EQ("/* \\ \\ \\\n*/", format("\\\n/* \\ \\ \\\n*/")); 3022 EXPECT_EQ("<a\n\\\\\n>", format("<a\n\\\\\n>")); 3023 } 3024 3025 TEST_F(FormatTest, DontCrashOnBlockComments) { 3026 EXPECT_EQ( 3027 "int xxxxxxxxx; /* " 3028 "yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy\n" 3029 "zzzzzz\n" 3030 "0*/", 3031 format("int xxxxxxxxx; /* " 3032 "yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy zzzzzz\n" 3033 "0*/")); 3034 } 3035 3036 TEST_F(FormatTest, CalculateSpaceOnConsecutiveLinesInMacro) { 3037 verifyFormat("#define A \\\n" 3038 " int v( \\\n" 3039 " a); \\\n" 3040 " int i;", 3041 getLLVMStyleWithColumns(11)); 3042 } 3043 3044 TEST_F(FormatTest, MixingPreprocessorDirectivesAndNormalCode) { 3045 EXPECT_EQ( 3046 "#define ALooooooooooooooooooooooooooooooooooooooongMacro(" 3047 " \\\n" 3048 " aLoooooooooooooooooooooooongFuuuuuuuuuuuuuunctiooooooooo)\n" 3049 "\n" 3050 "AlooooooooooooooooooooooooooooooooooooooongCaaaaaaaaaal(\n" 3051 " aLooooooooooooooooooooooonPaaaaaaaaaaaaaaaaaaaaarmmmm);\n", 3052 format(" #define ALooooooooooooooooooooooooooooooooooooooongMacro(" 3053 "\\\n" 3054 "aLoooooooooooooooooooooooongFuuuuuuuuuuuuuunctiooooooooo)\n" 3055 " \n" 3056 " AlooooooooooooooooooooooooooooooooooooooongCaaaaaaaaaal(\n" 3057 " aLooooooooooooooooooooooonPaaaaaaaaaaaaaaaaaaaaarmmmm);\n")); 3058 } 3059 3060 TEST_F(FormatTest, LayoutStatementsAroundPreprocessorDirectives) { 3061 EXPECT_EQ("int\n" 3062 "#define A\n" 3063 " a;", 3064 format("int\n#define A\na;")); 3065 verifyFormat("functionCallTo(\n" 3066 " someOtherFunction(\n" 3067 " withSomeParameters, whichInSequence,\n" 3068 " areLongerThanALine(andAnotherCall,\n" 3069 "#define A B\n" 3070 " withMoreParamters,\n" 3071 " whichStronglyInfluenceTheLayout),\n" 3072 " andMoreParameters),\n" 3073 " trailing);", 3074 getLLVMStyleWithColumns(69)); 3075 verifyFormat("Foo::Foo()\n" 3076 "#ifdef BAR\n" 3077 " : baz(0)\n" 3078 "#endif\n" 3079 "{\n" 3080 "}"); 3081 verifyFormat("void f() {\n" 3082 " if (true)\n" 3083 "#ifdef A\n" 3084 " f(42);\n" 3085 " x();\n" 3086 "#else\n" 3087 " g();\n" 3088 " x();\n" 3089 "#endif\n" 3090 "}"); 3091 verifyFormat("void f(param1, param2,\n" 3092 " param3,\n" 3093 "#ifdef A\n" 3094 " param4(param5,\n" 3095 "#ifdef A1\n" 3096 " param6,\n" 3097 "#ifdef A2\n" 3098 " param7),\n" 3099 "#else\n" 3100 " param8),\n" 3101 " param9,\n" 3102 "#endif\n" 3103 " param10,\n" 3104 "#endif\n" 3105 " param11)\n" 3106 "#else\n" 3107 " param12)\n" 3108 "#endif\n" 3109 "{\n" 3110 " x();\n" 3111 "}", 3112 getLLVMStyleWithColumns(28)); 3113 verifyFormat("#if 1\n" 3114 "int i;"); 3115 verifyFormat("#if 1\n" 3116 "#endif\n" 3117 "#if 1\n" 3118 "#else\n" 3119 "#endif\n"); 3120 verifyFormat("DEBUG({\n" 3121 " return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3122 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;\n" 3123 "});\n" 3124 "#if a\n" 3125 "#else\n" 3126 "#endif"); 3127 3128 verifyIncompleteFormat("void f(\n" 3129 "#if A\n" 3130 " );\n" 3131 "#else\n" 3132 "#endif"); 3133 } 3134 3135 TEST_F(FormatTest, GraciouslyHandleIncorrectPreprocessorConditions) { 3136 verifyFormat("#endif\n" 3137 "#if B"); 3138 } 3139 3140 TEST_F(FormatTest, FormatsJoinedLinesOnSubsequentRuns) { 3141 FormatStyle SingleLine = getLLVMStyle(); 3142 SingleLine.AllowShortIfStatementsOnASingleLine = true; 3143 verifyFormat("#if 0\n" 3144 "#elif 1\n" 3145 "#endif\n" 3146 "void foo() {\n" 3147 " if (test) foo2();\n" 3148 "}", 3149 SingleLine); 3150 } 3151 3152 TEST_F(FormatTest, LayoutBlockInsideParens) { 3153 verifyFormat("functionCall({ int i; });"); 3154 verifyFormat("functionCall({\n" 3155 " int i;\n" 3156 " int j;\n" 3157 "});"); 3158 verifyFormat("functionCall(\n" 3159 " {\n" 3160 " int i;\n" 3161 " int j;\n" 3162 " },\n" 3163 " aaaa, bbbb, cccc);"); 3164 verifyFormat("functionA(functionB({\n" 3165 " int i;\n" 3166 " int j;\n" 3167 " }),\n" 3168 " aaaa, bbbb, cccc);"); 3169 verifyFormat("functionCall(\n" 3170 " {\n" 3171 " int i;\n" 3172 " int j;\n" 3173 " },\n" 3174 " aaaa, bbbb, // comment\n" 3175 " cccc);"); 3176 verifyFormat("functionA(functionB({\n" 3177 " int i;\n" 3178 " int j;\n" 3179 " }),\n" 3180 " aaaa, bbbb, // comment\n" 3181 " cccc);"); 3182 verifyFormat("functionCall(aaaa, bbbb, { int i; });"); 3183 verifyFormat("functionCall(aaaa, bbbb, {\n" 3184 " int i;\n" 3185 " int j;\n" 3186 "});"); 3187 verifyFormat( 3188 "Aaa(\n" // FIXME: There shouldn't be a linebreak here. 3189 " {\n" 3190 " int i; // break\n" 3191 " },\n" 3192 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb,\n" 3193 " ccccccccccccccccc));"); 3194 verifyFormat("DEBUG({\n" 3195 " if (a)\n" 3196 " f();\n" 3197 "});"); 3198 } 3199 3200 TEST_F(FormatTest, LayoutBlockInsideStatement) { 3201 EXPECT_EQ("SOME_MACRO { int i; }\n" 3202 "int i;", 3203 format(" SOME_MACRO {int i;} int i;")); 3204 } 3205 3206 TEST_F(FormatTest, LayoutNestedBlocks) { 3207 verifyFormat("void AddOsStrings(unsigned bitmask) {\n" 3208 " struct s {\n" 3209 " int i;\n" 3210 " };\n" 3211 " s kBitsToOs[] = {{10}};\n" 3212 " for (int i = 0; i < 10; ++i)\n" 3213 " return;\n" 3214 "}"); 3215 verifyFormat("call(parameter, {\n" 3216 " something();\n" 3217 " // Comment using all columns.\n" 3218 " somethingelse();\n" 3219 "});", 3220 getLLVMStyleWithColumns(40)); 3221 verifyFormat("DEBUG( //\n" 3222 " { f(); }, a);"); 3223 verifyFormat("DEBUG( //\n" 3224 " {\n" 3225 " f(); //\n" 3226 " },\n" 3227 " a);"); 3228 3229 EXPECT_EQ("call(parameter, {\n" 3230 " something();\n" 3231 " // Comment too\n" 3232 " // looooooooooong.\n" 3233 " somethingElse();\n" 3234 "});", 3235 format("call(parameter, {\n" 3236 " something();\n" 3237 " // Comment too looooooooooong.\n" 3238 " somethingElse();\n" 3239 "});", 3240 getLLVMStyleWithColumns(29))); 3241 EXPECT_EQ("DEBUG({ int i; });", format("DEBUG({ int i; });")); 3242 EXPECT_EQ("DEBUG({ // comment\n" 3243 " int i;\n" 3244 "});", 3245 format("DEBUG({ // comment\n" 3246 "int i;\n" 3247 "});")); 3248 EXPECT_EQ("DEBUG({\n" 3249 " int i;\n" 3250 "\n" 3251 " // comment\n" 3252 " int j;\n" 3253 "});", 3254 format("DEBUG({\n" 3255 " int i;\n" 3256 "\n" 3257 " // comment\n" 3258 " int j;\n" 3259 "});")); 3260 3261 verifyFormat("DEBUG({\n" 3262 " if (a)\n" 3263 " return;\n" 3264 "});"); 3265 verifyGoogleFormat("DEBUG({\n" 3266 " if (a) return;\n" 3267 "});"); 3268 FormatStyle Style = getGoogleStyle(); 3269 Style.ColumnLimit = 45; 3270 verifyFormat("Debug(aaaaa,\n" 3271 " {\n" 3272 " if (aaaaaaaaaaaaaaaaaaaaaaaa) return;\n" 3273 " },\n" 3274 " a);", 3275 Style); 3276 3277 verifyFormat("SomeFunction({MACRO({ return output; }), b});"); 3278 3279 verifyNoCrash("^{v^{a}}"); 3280 } 3281 3282 TEST_F(FormatTest, FormatNestedBlocksInMacros) { 3283 EXPECT_EQ("#define MACRO() \\\n" 3284 " Debug(aaa, /* force line break */ \\\n" 3285 " { \\\n" 3286 " int i; \\\n" 3287 " int j; \\\n" 3288 " })", 3289 format("#define MACRO() Debug(aaa, /* force line break */ \\\n" 3290 " { int i; int j; })", 3291 getGoogleStyle())); 3292 3293 EXPECT_EQ("#define A \\\n" 3294 " [] { \\\n" 3295 " xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx( \\\n" 3296 " xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx); \\\n" 3297 " }", 3298 format("#define A [] { xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx( \\\n" 3299 "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx); }", 3300 getGoogleStyle())); 3301 } 3302 3303 TEST_F(FormatTest, PutEmptyBlocksIntoOneLine) { 3304 EXPECT_EQ("{}", format("{}")); 3305 verifyFormat("enum E {};"); 3306 verifyFormat("enum E {}"); 3307 } 3308 3309 TEST_F(FormatTest, FormatBeginBlockEndMacros) { 3310 FormatStyle Style = getLLVMStyle(); 3311 Style.MacroBlockBegin = "^[A-Z_]+_BEGIN$"; 3312 Style.MacroBlockEnd = "^[A-Z_]+_END$"; 3313 verifyFormat("FOO_BEGIN\n" 3314 " FOO_ENTRY\n" 3315 "FOO_END", Style); 3316 verifyFormat("FOO_BEGIN\n" 3317 " NESTED_FOO_BEGIN\n" 3318 " NESTED_FOO_ENTRY\n" 3319 " NESTED_FOO_END\n" 3320 "FOO_END", Style); 3321 verifyFormat("FOO_BEGIN(Foo, Bar)\n" 3322 " int x;\n" 3323 " x = 1;\n" 3324 "FOO_END(Baz)", Style); 3325 } 3326 3327 //===----------------------------------------------------------------------===// 3328 // Line break tests. 3329 //===----------------------------------------------------------------------===// 3330 3331 TEST_F(FormatTest, PreventConfusingIndents) { 3332 verifyFormat( 3333 "void f() {\n" 3334 " SomeLongMethodName(SomeReallyLongMethod(CallOtherReallyLongMethod(\n" 3335 " parameter, parameter, parameter)),\n" 3336 " SecondLongCall(parameter));\n" 3337 "}"); 3338 verifyFormat( 3339 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3340 " aaaaaaaaaaaaaaaaaaaaaaaa(\n" 3341 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 3342 " aaaaaaaaaaaaaaaaaaaaaaaa);"); 3343 verifyFormat( 3344 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3345 " [aaaaaaaaaaaaaaaaaaaaaaaa\n" 3346 " [aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa]\n" 3347 " [aaaaaaaaaaaaaaaaaaaaaaaa]];"); 3348 verifyFormat( 3349 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa<\n" 3350 " aaaaaaaaaaaaaaaaaaaaaaaa<\n" 3351 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>,\n" 3352 " aaaaaaaaaaaaaaaaaaaaaaaa>;"); 3353 verifyFormat("int a = bbbb && ccc && fffff(\n" 3354 "#define A Just forcing a new line\n" 3355 " ddd);"); 3356 } 3357 3358 TEST_F(FormatTest, LineBreakingInBinaryExpressions) { 3359 verifyFormat( 3360 "bool aaaaaaa =\n" 3361 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaa).aaaaaaaaaaaaaaaaaaa() ||\n" 3362 " bbbbbbbb();"); 3363 verifyFormat( 3364 "bool aaaaaaa =\n" 3365 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaa).aaaaaaaaaaaaaaaaaaa() or\n" 3366 " bbbbbbbb();"); 3367 3368 verifyFormat("bool aaaaaaaaaaaaaaaaaaaaa =\n" 3369 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa != bbbbbbbbbbbbbbbbbb &&\n" 3370 " ccccccccc == ddddddddddd;"); 3371 verifyFormat("bool aaaaaaaaaaaaaaaaaaaaa =\n" 3372 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa != bbbbbbbbbbbbbbbbbb and\n" 3373 " ccccccccc == ddddddddddd;"); 3374 verifyFormat( 3375 "bool aaaaaaaaaaaaaaaaaaaaa =\n" 3376 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa not_eq bbbbbbbbbbbbbbbbbb and\n" 3377 " ccccccccc == ddddddddddd;"); 3378 3379 verifyFormat("aaaaaa = aaaaaaa(aaaaaaa, // break\n" 3380 " aaaaaa) &&\n" 3381 " bbbbbb && cccccc;"); 3382 verifyFormat("aaaaaa = aaaaaaa(aaaaaaa, // break\n" 3383 " aaaaaa) >>\n" 3384 " bbbbbb;"); 3385 verifyFormat("aa = Whitespaces.addUntouchableComment(\n" 3386 " SourceMgr.getSpellingColumnNumber(\n" 3387 " TheLine.Last->FormatTok.Tok.getLocation()) -\n" 3388 " 1);"); 3389 3390 verifyFormat("if ((aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 3391 " bbbbbbbbbbbbbbbbbb) && // aaaaaaaaaaaaaaaa\n" 3392 " cccccc) {\n}"); 3393 verifyFormat("b = a &&\n" 3394 " // Comment\n" 3395 " b.c && d;"); 3396 3397 // If the LHS of a comparison is not a binary expression itself, the 3398 // additional linebreak confuses many people. 3399 verifyFormat( 3400 "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3401 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) > 5) {\n" 3402 "}"); 3403 verifyFormat( 3404 "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3405 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) == 5) {\n" 3406 "}"); 3407 verifyFormat( 3408 "if (aaaaaaaaaaaaaaaaaaaaaaaaaa.aaaaaaaaaaaaaaaaaaaaaa(\n" 3409 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) == 5) {\n" 3410 "}"); 3411 // Even explicit parentheses stress the precedence enough to make the 3412 // additional break unnecessary. 3413 verifyFormat("if ((aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3414 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) == 5) {\n" 3415 "}"); 3416 // This cases is borderline, but with the indentation it is still readable. 3417 verifyFormat( 3418 "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3419 " aaaaaaaaaaaaaaa) > aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3420 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n" 3421 "}", 3422 getLLVMStyleWithColumns(75)); 3423 3424 // If the LHS is a binary expression, we should still use the additional break 3425 // as otherwise the formatting hides the operator precedence. 3426 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3427 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n" 3428 " 5) {\n" 3429 "}"); 3430 3431 FormatStyle OnePerLine = getLLVMStyle(); 3432 OnePerLine.BinPackParameters = false; 3433 verifyFormat( 3434 "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 3435 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 3436 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}", 3437 OnePerLine); 3438 } 3439 3440 TEST_F(FormatTest, ExpressionIndentation) { 3441 verifyFormat("bool value = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3442 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3443 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n" 3444 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n" 3445 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb +\n" 3446 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb &&\n" 3447 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n" 3448 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa >\n" 3449 " ccccccccccccccccccccccccccccccccccccccccc;"); 3450 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n" 3451 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3452 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n" 3453 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}"); 3454 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3455 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n" 3456 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n" 3457 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}"); 3458 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n" 3459 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n" 3460 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3461 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}"); 3462 verifyFormat("if () {\n" 3463 "} else if (aaaaa &&\n" 3464 " bbbbb > // break\n" 3465 " ccccc) {\n" 3466 "}"); 3467 3468 // Presence of a trailing comment used to change indentation of b. 3469 verifyFormat("return aaaaaaaaaaaaaaaaaaa +\n" 3470 " b;\n" 3471 "return aaaaaaaaaaaaaaaaaaa +\n" 3472 " b; //", 3473 getLLVMStyleWithColumns(30)); 3474 } 3475 3476 TEST_F(FormatTest, ExpressionIndentationBreakingBeforeOperators) { 3477 // Not sure what the best system is here. Like this, the LHS can be found 3478 // immediately above an operator (everything with the same or a higher 3479 // indent). The RHS is aligned right of the operator and so compasses 3480 // everything until something with the same indent as the operator is found. 3481 // FIXME: Is this a good system? 3482 FormatStyle Style = getLLVMStyle(); 3483 Style.BreakBeforeBinaryOperators = FormatStyle::BOS_All; 3484 verifyFormat( 3485 "bool value = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3486 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3487 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3488 " == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3489 " * bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3490 " + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3491 " && aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3492 " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3493 " > ccccccccccccccccccccccccccccccccccccccccc;", 3494 Style); 3495 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3496 " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3497 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3498 " == bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}", 3499 Style); 3500 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3501 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3502 " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3503 " == bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}", 3504 Style); 3505 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3506 " == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3507 " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3508 " + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}", 3509 Style); 3510 verifyFormat("if () {\n" 3511 "} else if (aaaaa\n" 3512 " && bbbbb // break\n" 3513 " > ccccc) {\n" 3514 "}", 3515 Style); 3516 verifyFormat("return (a)\n" 3517 " // comment\n" 3518 " + b;", 3519 Style); 3520 verifyFormat( 3521 "int aaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3522 " * bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3523 " + cc;", 3524 Style); 3525 3526 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3527 " = aaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaaaaa;", 3528 Style); 3529 3530 // Forced by comments. 3531 verifyFormat( 3532 "unsigned ContentSize =\n" 3533 " sizeof(int16_t) // DWARF ARange version number\n" 3534 " + sizeof(int32_t) // Offset of CU in the .debug_info section\n" 3535 " + sizeof(int8_t) // Pointer Size (in bytes)\n" 3536 " + sizeof(int8_t); // Segment Size (in bytes)"); 3537 3538 verifyFormat("return boost::fusion::at_c<0>(iiii).second\n" 3539 " == boost::fusion::at_c<1>(iiii).second;", 3540 Style); 3541 3542 Style.ColumnLimit = 60; 3543 verifyFormat("zzzzzzzzzz\n" 3544 " = bbbbbbbbbbbbbbbbb\n" 3545 " >> aaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaa);", 3546 Style); 3547 } 3548 3549 TEST_F(FormatTest, NoOperandAlignment) { 3550 FormatStyle Style = getLLVMStyle(); 3551 Style.AlignOperands = false; 3552 Style.BreakBeforeBinaryOperators = FormatStyle::BOS_NonAssignment; 3553 verifyFormat("bool value = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3554 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3555 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3556 " == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3557 " * bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3558 " + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3559 " && aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3560 " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3561 " > ccccccccccccccccccccccccccccccccccccccccc;", 3562 Style); 3563 3564 verifyFormat("int aaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3565 " * bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3566 " + cc;", 3567 Style); 3568 verifyFormat("int a = aa\n" 3569 " + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3570 " * cccccccccccccccccccccccccccccccccccc;", 3571 Style); 3572 3573 Style.AlignAfterOpenBracket = FormatStyle::BAS_DontAlign; 3574 verifyFormat("return (a > b\n" 3575 " // comment1\n" 3576 " // comment2\n" 3577 " || c);", 3578 Style); 3579 } 3580 3581 TEST_F(FormatTest, BreakingBeforeNonAssigmentOperators) { 3582 FormatStyle Style = getLLVMStyle(); 3583 Style.BreakBeforeBinaryOperators = FormatStyle::BOS_NonAssignment; 3584 verifyFormat("int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 3585 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3586 " + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;", 3587 Style); 3588 } 3589 3590 TEST_F(FormatTest, ConstructorInitializers) { 3591 verifyFormat("Constructor() : Initializer(FitsOnTheLine) {}"); 3592 verifyFormat("Constructor() : Inttializer(FitsOnTheLine) {}", 3593 getLLVMStyleWithColumns(45)); 3594 verifyFormat("Constructor()\n" 3595 " : Inttializer(FitsOnTheLine) {}", 3596 getLLVMStyleWithColumns(44)); 3597 verifyFormat("Constructor()\n" 3598 " : Inttializer(FitsOnTheLine) {}", 3599 getLLVMStyleWithColumns(43)); 3600 3601 verifyFormat("template <typename T>\n" 3602 "Constructor() : Initializer(FitsOnTheLine) {}", 3603 getLLVMStyleWithColumns(45)); 3604 3605 verifyFormat( 3606 "SomeClass::Constructor()\n" 3607 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaaaa(aaaaaaaaaaaa) {}"); 3608 3609 verifyFormat( 3610 "SomeClass::Constructor()\n" 3611 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 3612 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}"); 3613 verifyFormat( 3614 "SomeClass::Constructor()\n" 3615 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 3616 " aaaaaaaaaaaaaaa(aaaaaaaaaaaa) {}"); 3617 verifyFormat("Constructor(aaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3618 " aaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 3619 " : aaaaaaaaaa(aaaaaa) {}"); 3620 3621 verifyFormat("Constructor()\n" 3622 " : aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 3623 " aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3624 " aaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 3625 " aaaaaaaaaaaaaaaaaaaaaaa() {}"); 3626 3627 verifyFormat("Constructor()\n" 3628 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3629 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}"); 3630 3631 verifyFormat("Constructor(int Parameter = 0)\n" 3632 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaa),\n" 3633 " aaaaaaaaaaaa(aaaaaaaaaaaaaaaaa) {}"); 3634 verifyFormat("Constructor()\n" 3635 " : aaaaaaaaaaaaaaaaaaaa(a), bbbbbbbbbbbbbbbbbbbbbbbb(b) {\n" 3636 "}", 3637 getLLVMStyleWithColumns(60)); 3638 verifyFormat("Constructor()\n" 3639 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3640 " aaaaaaaaaaaaaaaaaaaaaaaaa(aaaa, aaaa)) {}"); 3641 3642 // Here a line could be saved by splitting the second initializer onto two 3643 // lines, but that is not desirable. 3644 verifyFormat("Constructor()\n" 3645 " : aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaa),\n" 3646 " aaaaaaaaaaa(aaaaaaaaaaa),\n" 3647 " aaaaaaaaaaaaaaaaaaaaat(aaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}"); 3648 3649 FormatStyle OnePerLine = getLLVMStyle(); 3650 OnePerLine.ConstructorInitializerAllOnOneLineOrOnePerLine = true; 3651 OnePerLine.AllowAllParametersOfDeclarationOnNextLine = false; 3652 verifyFormat("SomeClass::Constructor()\n" 3653 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 3654 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 3655 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}", 3656 OnePerLine); 3657 verifyFormat("SomeClass::Constructor()\n" 3658 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), // Some comment\n" 3659 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 3660 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}", 3661 OnePerLine); 3662 verifyFormat("MyClass::MyClass(int var)\n" 3663 " : some_var_(var), // 4 space indent\n" 3664 " some_other_var_(var + 1) { // lined up\n" 3665 "}", 3666 OnePerLine); 3667 verifyFormat("Constructor()\n" 3668 " : aaaaa(aaaaaa),\n" 3669 " aaaaa(aaaaaa),\n" 3670 " aaaaa(aaaaaa),\n" 3671 " aaaaa(aaaaaa),\n" 3672 " aaaaa(aaaaaa) {}", 3673 OnePerLine); 3674 verifyFormat("Constructor()\n" 3675 " : aaaaa(aaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaa,\n" 3676 " aaaaaaaaaaaaaaaaaaaaaa) {}", 3677 OnePerLine); 3678 OnePerLine.BinPackParameters = false; 3679 verifyFormat( 3680 "Constructor()\n" 3681 " : aaaaaaaaaaaaaaaaaaaaaaaa(\n" 3682 " aaaaaaaaaaa().aaa(),\n" 3683 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}", 3684 OnePerLine); 3685 OnePerLine.ColumnLimit = 60; 3686 verifyFormat("Constructor()\n" 3687 " : aaaaaaaaaaaaaaaaaaaa(a),\n" 3688 " bbbbbbbbbbbbbbbbbbbbbbbb(b) {}", 3689 OnePerLine); 3690 3691 EXPECT_EQ("Constructor()\n" 3692 " : // Comment forcing unwanted break.\n" 3693 " aaaa(aaaa) {}", 3694 format("Constructor() :\n" 3695 " // Comment forcing unwanted break.\n" 3696 " aaaa(aaaa) {}")); 3697 } 3698 3699 TEST_F(FormatTest, MemoizationTests) { 3700 // This breaks if the memoization lookup does not take \c Indent and 3701 // \c LastSpace into account. 3702 verifyFormat( 3703 "extern CFRunLoopTimerRef\n" 3704 "CFRunLoopTimerCreate(CFAllocatorRef allocato, CFAbsoluteTime fireDate,\n" 3705 " CFTimeInterval interval, CFOptionFlags flags,\n" 3706 " CFIndex order, CFRunLoopTimerCallBack callout,\n" 3707 " CFRunLoopTimerContext *context) {}"); 3708 3709 // Deep nesting somewhat works around our memoization. 3710 verifyFormat( 3711 "aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(\n" 3712 " aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(\n" 3713 " aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(\n" 3714 " aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(\n" 3715 " aaaaa())))))))))))))))))))))))))))))))))))))));", 3716 getLLVMStyleWithColumns(65)); 3717 verifyFormat( 3718 "aaaaa(\n" 3719 " aaaaa,\n" 3720 " aaaaa(\n" 3721 " aaaaa,\n" 3722 " aaaaa(\n" 3723 " aaaaa,\n" 3724 " aaaaa(\n" 3725 " aaaaa,\n" 3726 " aaaaa(\n" 3727 " aaaaa,\n" 3728 " aaaaa(\n" 3729 " aaaaa,\n" 3730 " aaaaa(\n" 3731 " aaaaa,\n" 3732 " aaaaa(\n" 3733 " aaaaa,\n" 3734 " aaaaa(\n" 3735 " aaaaa,\n" 3736 " aaaaa(\n" 3737 " aaaaa,\n" 3738 " aaaaa(\n" 3739 " aaaaa,\n" 3740 " aaaaa(\n" 3741 " aaaaa,\n" 3742 " aaaaa))))))))))));", 3743 getLLVMStyleWithColumns(65)); 3744 verifyFormat( 3745 "a(a(a(a(a(a(a(a(a(a(a(a(a(a(a(a(a(a(a(a(a(a(), a), a), a), a),\n" 3746 " a),\n" 3747 " a),\n" 3748 " a),\n" 3749 " a),\n" 3750 " a),\n" 3751 " a),\n" 3752 " a),\n" 3753 " a),\n" 3754 " a),\n" 3755 " a),\n" 3756 " a),\n" 3757 " a),\n" 3758 " a),\n" 3759 " a),\n" 3760 " a),\n" 3761 " a),\n" 3762 " a)", 3763 getLLVMStyleWithColumns(65)); 3764 3765 // This test takes VERY long when memoization is broken. 3766 FormatStyle OnePerLine = getLLVMStyle(); 3767 OnePerLine.ConstructorInitializerAllOnOneLineOrOnePerLine = true; 3768 OnePerLine.BinPackParameters = false; 3769 std::string input = "Constructor()\n" 3770 " : aaaa(a,\n"; 3771 for (unsigned i = 0, e = 80; i != e; ++i) { 3772 input += " a,\n"; 3773 } 3774 input += " a) {}"; 3775 verifyFormat(input, OnePerLine); 3776 } 3777 3778 TEST_F(FormatTest, BreaksAsHighAsPossible) { 3779 verifyFormat( 3780 "void f() {\n" 3781 " if ((aaaaaaaaaaaaaaaaaaaaaaaaaaaaa && aaaaaaaaaaaaaaaaaaaaaaaaaa) ||\n" 3782 " (bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb && bbbbbbbbbbbbbbbbbbbbbbbbbb))\n" 3783 " f();\n" 3784 "}"); 3785 verifyFormat("if (Intervals[i].getRange().getFirst() <\n" 3786 " Intervals[i - 1].getRange().getLast()) {\n}"); 3787 } 3788 3789 TEST_F(FormatTest, BreaksFunctionDeclarations) { 3790 // Principially, we break function declarations in a certain order: 3791 // 1) break amongst arguments. 3792 verifyFormat("Aaaaaaaaaaaaaa bbbbbbbbbbbbbb(Cccccccccccccc cccccccccccccc,\n" 3793 " Cccccccccccccc cccccccccccccc);"); 3794 verifyFormat("template <class TemplateIt>\n" 3795 "SomeReturnType SomeFunction(TemplateIt begin, TemplateIt end,\n" 3796 " TemplateIt *stop) {}"); 3797 3798 // 2) break after return type. 3799 verifyFormat( 3800 "Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3801 "bbbbbbbbbbbbbb(Cccccccccccccc cccccccccccccccccccccccccc);", 3802 getGoogleStyle()); 3803 3804 // 3) break after (. 3805 verifyFormat( 3806 "Aaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbbbbbb(\n" 3807 " Cccccccccccccccccccccccccccccc cccccccccccccccccccccccccccccccc);", 3808 getGoogleStyle()); 3809 3810 // 4) break before after nested name specifiers. 3811 verifyFormat( 3812 "Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3813 "SomeClasssssssssssssssssssssssssssssssssssssss::\n" 3814 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(Cccccccccccccc cccccccccc);", 3815 getGoogleStyle()); 3816 3817 // However, there are exceptions, if a sufficient amount of lines can be 3818 // saved. 3819 // FIXME: The precise cut-offs wrt. the number of saved lines might need some 3820 // more adjusting. 3821 verifyFormat("Aaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbb(Cccccccccccccc cccccccccc,\n" 3822 " Cccccccccccccc cccccccccc,\n" 3823 " Cccccccccccccc cccccccccc,\n" 3824 " Cccccccccccccc cccccccccc,\n" 3825 " Cccccccccccccc cccccccccc);"); 3826 verifyFormat( 3827 "Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3828 "bbbbbbbbbbb(Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n" 3829 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n" 3830 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc);", 3831 getGoogleStyle()); 3832 verifyFormat( 3833 "Aaaaaaaaaa bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(Cccccccccccccc cccccccccc,\n" 3834 " Cccccccccccccc cccccccccc,\n" 3835 " Cccccccccccccc cccccccccc,\n" 3836 " Cccccccccccccc cccccccccc,\n" 3837 " Cccccccccccccc cccccccccc,\n" 3838 " Cccccccccccccc cccccccccc,\n" 3839 " Cccccccccccccc cccccccccc);"); 3840 verifyFormat("Aaaaaaaaaa bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(\n" 3841 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n" 3842 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n" 3843 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n" 3844 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc);"); 3845 3846 // Break after multi-line parameters. 3847 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3848 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3849 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3850 " bbbb bbbb);"); 3851 verifyFormat("void SomeLoooooooooooongFunction(\n" 3852 " std::unique_ptr<aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>\n" 3853 " aaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3854 " int bbbbbbbbbbbbb);"); 3855 3856 // Treat overloaded operators like other functions. 3857 verifyFormat("SomeLoooooooooooooooooooooooooogType\n" 3858 "operator>(const SomeLoooooooooooooooooooooooooogType &other);"); 3859 verifyFormat("SomeLoooooooooooooooooooooooooogType\n" 3860 "operator>>(const SomeLooooooooooooooooooooooooogType &other);"); 3861 verifyFormat("SomeLoooooooooooooooooooooooooogType\n" 3862 "operator<<(const SomeLooooooooooooooooooooooooogType &other);"); 3863 verifyGoogleFormat( 3864 "SomeLoooooooooooooooooooooooooooooogType operator>>(\n" 3865 " const SomeLooooooooogType &a, const SomeLooooooooogType &b);"); 3866 verifyGoogleFormat( 3867 "SomeLoooooooooooooooooooooooooooooogType operator<<(\n" 3868 " const SomeLooooooooogType &a, const SomeLooooooooogType &b);"); 3869 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3870 " int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa = 1);"); 3871 verifyFormat("aaaaaaaaaaaaaaaaaaaaaa\n" 3872 "aaaaaaaaaaaaaaaaaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaa = 1);"); 3873 verifyGoogleFormat( 3874 "typename aaaaaaaaaa<aaaaaa>::aaaaaaaaaaa\n" 3875 "aaaaaaaaaa<aaaaaa>::aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3876 " bool *aaaaaaaaaaaaaaaaaa, bool *aa) {}"); 3877 verifyGoogleFormat( 3878 "template <typename T>\n" 3879 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3880 "aaaaaaaaaaaaaaaaaaaaaaa<T>::aaaaaaaaaaaaa(\n" 3881 " aaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaa);"); 3882 3883 FormatStyle Style = getLLVMStyle(); 3884 Style.PointerAlignment = FormatStyle::PAS_Left; 3885 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3886 " aaaaaaaaaaaaaaaaaaaaaaaaa* const aaaaaaaaaaaa) {}", 3887 Style); 3888 verifyFormat("void aaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa*\n" 3889 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}", 3890 Style); 3891 } 3892 3893 TEST_F(FormatTest, TrailingReturnType) { 3894 verifyFormat("auto foo() -> int;\n"); 3895 verifyFormat("struct S {\n" 3896 " auto bar() const -> int;\n" 3897 "};"); 3898 verifyFormat("template <size_t Order, typename T>\n" 3899 "auto load_img(const std::string &filename)\n" 3900 " -> alias::tensor<Order, T, mem::tag::cpu> {}"); 3901 verifyFormat("auto SomeFunction(A aaaaaaaaaaaaaaaaaaaaa) const\n" 3902 " -> decltype(f(aaaaaaaaaaaaaaaaaaaaa)) {}"); 3903 verifyFormat("auto doSomething(Aaaaaa *aaaaaa) -> decltype(aaaaaa->f()) {}"); 3904 verifyFormat("template <typename T>\n" 3905 "auto aaaaaaaaaaaaaaaaaaaaaa(T t)\n" 3906 " -> decltype(eaaaaaaaaaaaaaaa<T>(t.a).aaaaaaaa());"); 3907 3908 // Not trailing return types. 3909 verifyFormat("void f() { auto a = b->c(); }"); 3910 } 3911 3912 TEST_F(FormatTest, BreaksFunctionDeclarationsWithTrailingTokens) { 3913 // Avoid breaking before trailing 'const' or other trailing annotations, if 3914 // they are not function-like. 3915 FormatStyle Style = getGoogleStyle(); 3916 Style.ColumnLimit = 47; 3917 verifyFormat("void someLongFunction(\n" 3918 " int someLoooooooooooooongParameter) const {\n}", 3919 getLLVMStyleWithColumns(47)); 3920 verifyFormat("LoooooongReturnType\n" 3921 "someLoooooooongFunction() const {}", 3922 getLLVMStyleWithColumns(47)); 3923 verifyFormat("LoooooongReturnType someLoooooooongFunction()\n" 3924 " const {}", 3925 Style); 3926 verifyFormat("void SomeFunction(aaaaa aaaaaaaaaaaaaaaaaaaa,\n" 3927 " aaaaa aaaaaaaaaaaaaaaaaaaa) OVERRIDE;"); 3928 verifyFormat("void SomeFunction(aaaaa aaaaaaaaaaaaaaaaaaaa,\n" 3929 " aaaaa aaaaaaaaaaaaaaaaaaaa) OVERRIDE FINAL;"); 3930 verifyFormat("void SomeFunction(aaaaa aaaaaaaaaaaaaaaaaaaa,\n" 3931 " aaaaa aaaaaaaaaaaaaaaaaaaa) override final;"); 3932 verifyFormat("virtual void aaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaa aaaa,\n" 3933 " aaaaaaaaaaa aaaaa) const override;"); 3934 verifyGoogleFormat( 3935 "virtual void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 3936 " const override;"); 3937 3938 // Even if the first parameter has to be wrapped. 3939 verifyFormat("void someLongFunction(\n" 3940 " int someLongParameter) const {}", 3941 getLLVMStyleWithColumns(46)); 3942 verifyFormat("void someLongFunction(\n" 3943 " int someLongParameter) const {}", 3944 Style); 3945 verifyFormat("void someLongFunction(\n" 3946 " int someLongParameter) override {}", 3947 Style); 3948 verifyFormat("void someLongFunction(\n" 3949 " int someLongParameter) OVERRIDE {}", 3950 Style); 3951 verifyFormat("void someLongFunction(\n" 3952 " int someLongParameter) final {}", 3953 Style); 3954 verifyFormat("void someLongFunction(\n" 3955 " int someLongParameter) FINAL {}", 3956 Style); 3957 verifyFormat("void someLongFunction(\n" 3958 " int parameter) const override {}", 3959 Style); 3960 3961 Style.BreakBeforeBraces = FormatStyle::BS_Allman; 3962 verifyFormat("void someLongFunction(\n" 3963 " int someLongParameter) const\n" 3964 "{\n" 3965 "}", 3966 Style); 3967 3968 // Unless these are unknown annotations. 3969 verifyFormat("void SomeFunction(aaaaaaaaaa aaaaaaaaaaaaaaa,\n" 3970 " aaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 3971 " LONG_AND_UGLY_ANNOTATION;"); 3972 3973 // Breaking before function-like trailing annotations is fine to keep them 3974 // close to their arguments. 3975 verifyFormat("void aaaaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 3976 " LOCKS_EXCLUDED(aaaaaaaaaaaaa);"); 3977 verifyFormat("void aaaaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) const\n" 3978 " LOCKS_EXCLUDED(aaaaaaaaaaaaa);"); 3979 verifyFormat("void aaaaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) const\n" 3980 " LOCKS_EXCLUDED(aaaaaaaaaaaaa) {}"); 3981 verifyGoogleFormat("void aaaaaaaaaaaaaa(aaaaaaaa aaa) override\n" 3982 " AAAAAAAAAAAAAAAAAAAAAAAA(aaaaaaaaaaaaaaa);"); 3983 verifyFormat("SomeFunction([](int i) LOCKS_EXCLUDED(a) {});"); 3984 3985 verifyFormat( 3986 "void aaaaaaaaaaaaaaaaaa()\n" 3987 " __attribute__((aaaaaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaa,\n" 3988 " aaaaaaaaaaaaaaaaaaaaaaaaa));"); 3989 verifyFormat("bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3990 " __attribute__((unused));"); 3991 verifyGoogleFormat( 3992 "bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3993 " GUARDED_BY(aaaaaaaaaaaa);"); 3994 verifyGoogleFormat( 3995 "bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3996 " GUARDED_BY(aaaaaaaaaaaa);"); 3997 verifyGoogleFormat( 3998 "bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa GUARDED_BY(aaaaaaaaaaaa) =\n" 3999 " aaaaaaaa::aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4000 verifyGoogleFormat( 4001 "bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa GUARDED_BY(aaaaaaaaaaaa) =\n" 4002 " aaaaaaaaaaaaaaaaaaaaaaaaa;"); 4003 } 4004 4005 TEST_F(FormatTest, FunctionAnnotations) { 4006 verifyFormat("DEPRECATED(\"Use NewClass::NewFunction instead.\")\n" 4007 "int OldFunction(const string ¶meter) {}"); 4008 verifyFormat("DEPRECATED(\"Use NewClass::NewFunction instead.\")\n" 4009 "string OldFunction(const string ¶meter) {}"); 4010 verifyFormat("template <typename T>\n" 4011 "DEPRECATED(\"Use NewClass::NewFunction instead.\")\n" 4012 "string OldFunction(const string ¶meter) {}"); 4013 4014 // Not function annotations. 4015 verifyFormat("ASSERT(\"aaaaa\") << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4016 " << bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"); 4017 verifyFormat("TEST_F(ThisIsATestFixtureeeeeeeeeeeee,\n" 4018 " ThisIsATestWithAReallyReallyReallyReallyLongName) {}"); 4019 verifyFormat("MACRO(abc).function() // wrap\n" 4020 " << abc;"); 4021 verifyFormat("MACRO(abc)->function() // wrap\n" 4022 " << abc;"); 4023 verifyFormat("MACRO(abc)::function() // wrap\n" 4024 " << abc;"); 4025 } 4026 4027 TEST_F(FormatTest, BreaksDesireably) { 4028 verifyFormat("if (aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaa) ||\n" 4029 " aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaa) ||\n" 4030 " aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaa)) {\n}"); 4031 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4032 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)) {\n" 4033 "}"); 4034 4035 verifyFormat( 4036 "aaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4037 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}"); 4038 4039 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4040 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4041 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa));"); 4042 4043 verifyFormat( 4044 "aaaaaaaa(aaaaaaaaaaaaa, aaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4045 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)),\n" 4046 " aaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4047 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)));"); 4048 4049 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 4050 " (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4051 4052 verifyFormat( 4053 "void f() {\n" 4054 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa &&\n" 4055 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);\n" 4056 "}"); 4057 verifyFormat( 4058 "aaaaaa(new Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4059 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaa));"); 4060 verifyFormat( 4061 "aaaaaa(aaa, new Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4062 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaa));"); 4063 verifyFormat("aaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4064 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4065 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4066 4067 // Indent consistently independent of call expression and unary operator. 4068 verifyFormat("aaaaaaaaaaa(bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(\n" 4069 " dddddddddddddddddddddddddddddd));"); 4070 verifyFormat("aaaaaaaaaaa(!bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(\n" 4071 " dddddddddddddddddddddddddddddd));"); 4072 verifyFormat("aaaaaaaaaaa(bbbbbbbbbbbbbbbbbbbbbbbbb.ccccccccccccccccc(\n" 4073 " dddddddddddddddddddddddddddddd));"); 4074 4075 // This test case breaks on an incorrect memoization, i.e. an optimization not 4076 // taking into account the StopAt value. 4077 verifyFormat( 4078 "return aaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaa ||\n" 4079 " aaaaaaaaaaa(aaaaaaaaa) || aaaaaaaaaaaaaaaaaaaaaaa ||\n" 4080 " aaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaa ||\n" 4081 " (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4082 4083 verifyFormat("{\n {\n {\n" 4084 " Annotation.SpaceRequiredBefore =\n" 4085 " Line.Tokens[i - 1].Tok.isNot(tok::l_paren) &&\n" 4086 " Line.Tokens[i - 1].Tok.isNot(tok::l_square);\n" 4087 " }\n }\n}"); 4088 4089 // Break on an outer level if there was a break on an inner level. 4090 EXPECT_EQ("f(g(h(a, // comment\n" 4091 " b, c),\n" 4092 " d, e),\n" 4093 " x, y);", 4094 format("f(g(h(a, // comment\n" 4095 " b, c), d, e), x, y);")); 4096 4097 // Prefer breaking similar line breaks. 4098 verifyFormat( 4099 "const int kTrackingOptions = NSTrackingMouseMoved |\n" 4100 " NSTrackingMouseEnteredAndExited |\n" 4101 " NSTrackingActiveAlways;"); 4102 } 4103 4104 TEST_F(FormatTest, FormatsDeclarationsOnePerLine) { 4105 FormatStyle NoBinPacking = getGoogleStyle(); 4106 NoBinPacking.BinPackParameters = false; 4107 NoBinPacking.BinPackArguments = true; 4108 verifyFormat("void f() {\n" 4109 " f(aaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaa,\n" 4110 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);\n" 4111 "}", 4112 NoBinPacking); 4113 verifyFormat("void f(int aaaaaaaaaaaaaaaaaaaa,\n" 4114 " int aaaaaaaaaaaaaaaaaaaa,\n" 4115 " int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}", 4116 NoBinPacking); 4117 4118 NoBinPacking.AllowAllParametersOfDeclarationOnNextLine = false; 4119 verifyFormat("void aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4120 " vector<int> bbbbbbbbbbbbbbb);", 4121 NoBinPacking); 4122 // FIXME: This behavior difference is probably not wanted. However, currently 4123 // we cannot distinguish BreakBeforeParameter being set because of the wrapped 4124 // template arguments from BreakBeforeParameter being set because of the 4125 // one-per-line formatting. 4126 verifyFormat( 4127 "void fffffffffff(aaaaaaaaaaaaaaaaaaaaaaaaaaa<aaaaaaaaaaaaaaaaaaaaaaa,\n" 4128 " aaaaaaaaaa> aaaaaaaaaa);", 4129 NoBinPacking); 4130 verifyFormat( 4131 "void fffffffffff(\n" 4132 " aaaaaaaaaaaaaaaaaaaaaaaaaaa<aaaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaa>\n" 4133 " aaaaaaaaaa);"); 4134 } 4135 4136 TEST_F(FormatTest, FormatsOneParameterPerLineIfNecessary) { 4137 FormatStyle NoBinPacking = getGoogleStyle(); 4138 NoBinPacking.BinPackParameters = false; 4139 NoBinPacking.BinPackArguments = false; 4140 verifyFormat("f(aaaaaaaaaaaaaaaaaaaa,\n" 4141 " aaaaaaaaaaaaaaaaaaaa,\n" 4142 " aaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaa);", 4143 NoBinPacking); 4144 verifyFormat("aaaaaaa(aaaaaaaaaaaaa,\n" 4145 " aaaaaaaaaaaaa,\n" 4146 " aaaaaaaaaaaaa(aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaa));", 4147 NoBinPacking); 4148 verifyFormat( 4149 "aaaaaaaa(aaaaaaaaaaaaa,\n" 4150 " aaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4151 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)),\n" 4152 " aaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4153 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)));", 4154 NoBinPacking); 4155 verifyFormat("aaaaaaaaaaaaaaa(aaaaaaaaa, aaaaaaaaa, aaaaaaaaaaaaaaaaaaaaa)\n" 4156 " .aaaaaaaaaaaaaaaaaa();", 4157 NoBinPacking); 4158 verifyFormat("void f() {\n" 4159 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4160 " aaaaaaaaaa, aaaaaaaaaa, aaaaaaaaaa, aaaaaaaaaaa);\n" 4161 "}", 4162 NoBinPacking); 4163 4164 verifyFormat( 4165 "aaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4166 " aaaaaaaaaaaa,\n" 4167 " aaaaaaaaaaaa);", 4168 NoBinPacking); 4169 verifyFormat( 4170 "somefunction(someotherFunction(ddddddddddddddddddddddddddddddddddd,\n" 4171 " ddddddddddddddddddddddddddddd),\n" 4172 " test);", 4173 NoBinPacking); 4174 4175 verifyFormat("std::vector<aaaaaaaaaaaaaaaaaaaaaaa,\n" 4176 " aaaaaaaaaaaaaaaaaaaaaaa,\n" 4177 " aaaaaaaaaaaaaaaaaaaaaaa>\n" 4178 " aaaaaaaaaaaaaaaaaa;", 4179 NoBinPacking); 4180 verifyFormat("a(\"a\"\n" 4181 " \"a\",\n" 4182 " a);"); 4183 4184 NoBinPacking.AllowAllParametersOfDeclarationOnNextLine = false; 4185 verifyFormat("void aaaaaaaaaa(aaaaaaaaa,\n" 4186 " aaaaaaaaa,\n" 4187 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4188 NoBinPacking); 4189 verifyFormat( 4190 "void f() {\n" 4191 " aaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaa, aaaaaaaaa, aaaaaaaaaaaaaaaaaaaaa)\n" 4192 " .aaaaaaa();\n" 4193 "}", 4194 NoBinPacking); 4195 verifyFormat( 4196 "template <class SomeType, class SomeOtherType>\n" 4197 "SomeType SomeFunction(SomeType Type, SomeOtherType OtherType) {}", 4198 NoBinPacking); 4199 } 4200 4201 TEST_F(FormatTest, AdaptiveOnePerLineFormatting) { 4202 FormatStyle Style = getLLVMStyleWithColumns(15); 4203 Style.ExperimentalAutoDetectBinPacking = true; 4204 EXPECT_EQ("aaa(aaaa,\n" 4205 " aaaa,\n" 4206 " aaaa);\n" 4207 "aaa(aaaa,\n" 4208 " aaaa,\n" 4209 " aaaa);", 4210 format("aaa(aaaa,\n" // one-per-line 4211 " aaaa,\n" 4212 " aaaa );\n" 4213 "aaa(aaaa, aaaa, aaaa);", // inconclusive 4214 Style)); 4215 EXPECT_EQ("aaa(aaaa, aaaa,\n" 4216 " aaaa);\n" 4217 "aaa(aaaa, aaaa,\n" 4218 " aaaa);", 4219 format("aaa(aaaa, aaaa,\n" // bin-packed 4220 " aaaa );\n" 4221 "aaa(aaaa, aaaa, aaaa);", // inconclusive 4222 Style)); 4223 } 4224 4225 TEST_F(FormatTest, FormatsBuilderPattern) { 4226 verifyFormat("return llvm::StringSwitch<Reference::Kind>(name)\n" 4227 " .StartsWith(\".eh_frame_hdr\", ORDER_EH_FRAMEHDR)\n" 4228 " .StartsWith(\".eh_frame\", ORDER_EH_FRAME)\n" 4229 " .StartsWith(\".init\", ORDER_INIT)\n" 4230 " .StartsWith(\".fini\", ORDER_FINI)\n" 4231 " .StartsWith(\".hash\", ORDER_HASH)\n" 4232 " .Default(ORDER_TEXT);\n"); 4233 4234 verifyFormat("return aaaaaaaaaaaaaaaaa->aaaaa().aaaaaaaaaaaaa().aaaaaa() <\n" 4235 " aaaaaaaaaaaaaaa->aaaaa().aaaaaaaaaaaaa().aaaaaa();"); 4236 verifyFormat( 4237 "aaaaaaa->aaaaaaa\n" 4238 " ->aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4239 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4240 " ->aaaaaaaa(aaaaaaaaaaaaaaa);"); 4241 verifyFormat( 4242 "aaaaaaa->aaaaaaa\n" 4243 " ->aaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4244 " ->aaaaaaaa(aaaaaaaaaaaaaaa);"); 4245 verifyFormat( 4246 "aaaaaaaaaaaaaaaaaaa()->aaaaaa(bbbbb)->aaaaaaaaaaaaaaaaaaa( // break\n" 4247 " aaaaaaaaaaaaaa);"); 4248 verifyFormat( 4249 "aaaaaaaaaaaaaaaaaaaaaaa *aaaaaaaaa =\n" 4250 " aaaaaa->aaaaaaaaaaaa()\n" 4251 " ->aaaaaaaaaaaaaaaa(\n" 4252 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4253 " ->aaaaaaaaaaaaaaaaa();"); 4254 verifyGoogleFormat( 4255 "void f() {\n" 4256 " someo->Add((new util::filetools::Handler(dir))\n" 4257 " ->OnEvent1(NewPermanentCallback(\n" 4258 " this, &HandlerHolderClass::EventHandlerCBA))\n" 4259 " ->OnEvent2(NewPermanentCallback(\n" 4260 " this, &HandlerHolderClass::EventHandlerCBB))\n" 4261 " ->OnEvent3(NewPermanentCallback(\n" 4262 " this, &HandlerHolderClass::EventHandlerCBC))\n" 4263 " ->OnEvent5(NewPermanentCallback(\n" 4264 " this, &HandlerHolderClass::EventHandlerCBD))\n" 4265 " ->OnEvent6(NewPermanentCallback(\n" 4266 " this, &HandlerHolderClass::EventHandlerCBE)));\n" 4267 "}"); 4268 4269 verifyFormat( 4270 "aaaaaaaaaaa().aaaaaaaaaaa().aaaaaaaaaaa().aaaaaaaaaaa().aaaaaaaaaaa();"); 4271 verifyFormat("aaaaaaaaaaaaaaa()\n" 4272 " .aaaaaaaaaaaaaaa()\n" 4273 " .aaaaaaaaaaaaaaa()\n" 4274 " .aaaaaaaaaaaaaaa()\n" 4275 " .aaaaaaaaaaaaaaa();"); 4276 verifyFormat("aaaaaaaaaaaaaaa.aaaaaaaaaaaaaaa()\n" 4277 " .aaaaaaaaaaaaaaa()\n" 4278 " .aaaaaaaaaaaaaaa()\n" 4279 " .aaaaaaaaaaaaaaa();"); 4280 verifyFormat("aaaaaaaaaaaaaaa.aaaaaaaaaaaaaaa()\n" 4281 " .aaaaaaaaaaaaaaa.aaaaaaaaaaaaaaa()\n" 4282 " .aaaaaaaaaaaaaaa();"); 4283 verifyFormat("aaaaaaaaaaaaa->aaaaaaaaaaaaaaaaaaaaaaaa()\n" 4284 " ->aaaaaaaaaaaaaae(0)\n" 4285 " ->aaaaaaaaaaaaaaa();"); 4286 4287 // Don't linewrap after very short segments. 4288 verifyFormat("a().aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4289 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4290 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 4291 verifyFormat("aa().aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4292 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4293 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 4294 verifyFormat("aaa()\n" 4295 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4296 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4297 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 4298 4299 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaa.aaaaaaaaaaaaa()\n" 4300 " .aaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4301 " .has<bbbbbbbbbbbbbbbbbbbbb>();"); 4302 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaa.aaaaaaaaaaaaa()\n" 4303 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa<\n" 4304 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>();"); 4305 4306 // Prefer not to break after empty parentheses. 4307 verifyFormat("FirstToken->WhitespaceRange.getBegin().getLocWithOffset(\n" 4308 " First->LastNewlineOffset);"); 4309 4310 // Prefer not to create "hanging" indents. 4311 verifyFormat( 4312 "return !soooooooooooooome_map\n" 4313 " .insert(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4314 " .second;"); 4315 verifyFormat( 4316 "return aaaaaaaaaaaaaaaa\n" 4317 " .aaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa)\n" 4318 " .aaaa(aaaaaaaaaaaaaa);"); 4319 // No hanging indent here. 4320 verifyFormat("aaaaaaaaaaaaaaaa.aaaaaaaaaaaaaa.aaaaaaaaaaaaaaa(\n" 4321 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4322 verifyFormat("aaaaaaaaaaaaaaaa.aaaaaaaaaaaaaa().aaaaaaaaaaaaaaa(\n" 4323 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4324 verifyFormat("aaaaaaaaaaaaaaaaaa.aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaa)\n" 4325 " .aaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4326 getLLVMStyleWithColumns(60)); 4327 verifyFormat("aaaaaaaaaaaaaaaaaa\n" 4328 " .aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaa)\n" 4329 " .aaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4330 getLLVMStyleWithColumns(59)); 4331 verifyFormat("aaaa.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4332 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4333 " .aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4334 } 4335 4336 TEST_F(FormatTest, BreaksAccordingToOperatorPrecedence) { 4337 verifyFormat( 4338 "if (aaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 4339 " bbbbbbbbbbbbbbbbbbbbbbbbb && ccccccccccccccccccccccccc) {\n}"); 4340 verifyFormat( 4341 "if (aaaaaaaaaaaaaaaaaaaaaaaaa or\n" 4342 " bbbbbbbbbbbbbbbbbbbbbbbbb and cccccccccccccccccccccccc) {\n}"); 4343 4344 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaa && bbbbbbbbbbbbbbbbbbbbbbbbb ||\n" 4345 " ccccccccccccccccccccccccc) {\n}"); 4346 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaa and bbbbbbbbbbbbbbbbbbbbbbbb or\n" 4347 " ccccccccccccccccccccccccc) {\n}"); 4348 4349 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaa || bbbbbbbbbbbbbbbbbbbbbbbbb ||\n" 4350 " ccccccccccccccccccccccccc) {\n}"); 4351 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaa or bbbbbbbbbbbbbbbbbbbbbbbbb or\n" 4352 " ccccccccccccccccccccccccc) {\n}"); 4353 4354 verifyFormat( 4355 "if ((aaaaaaaaaaaaaaaaaaaaaaaaa || bbbbbbbbbbbbbbbbbbbbbbbbb) &&\n" 4356 " ccccccccccccccccccccccccc) {\n}"); 4357 verifyFormat( 4358 "if ((aaaaaaaaaaaaaaaaaaaaaaaaa or bbbbbbbbbbbbbbbbbbbbbbbbb) and\n" 4359 " ccccccccccccccccccccccccc) {\n}"); 4360 4361 verifyFormat("return aaaa & AAAAAAAAAAAAAAAAAAAAAAAAAAAAA ||\n" 4362 " bbbb & BBBBBBBBBBBBBBBBBBBBBBBBBBBBB ||\n" 4363 " cccc & CCCCCCCCCCCCCCCCCCCCCCCCCC ||\n" 4364 " dddd & DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD;"); 4365 verifyFormat("return aaaa & AAAAAAAAAAAAAAAAAAAAAAAAAAAAA or\n" 4366 " bbbb & BBBBBBBBBBBBBBBBBBBBBBBBBBBBB or\n" 4367 " cccc & CCCCCCCCCCCCCCCCCCCCCCCCCC or\n" 4368 " dddd & DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD;"); 4369 4370 verifyFormat("if ((aaaaaaaaaa != aaaaaaaaaaaaaaa ||\n" 4371 " aaaaaaaaaaaaaaaaaaaaaaaa() >= aaaaaaaaaaaaaaaaaaaa) &&\n" 4372 " aaaaaaaaaaaaaaa != aa) {\n}"); 4373 verifyFormat("if ((aaaaaaaaaa != aaaaaaaaaaaaaaa or\n" 4374 " aaaaaaaaaaaaaaaaaaaaaaaa() >= aaaaaaaaaaaaaaaaaaaa) and\n" 4375 " aaaaaaaaaaaaaaa != aa) {\n}"); 4376 } 4377 4378 TEST_F(FormatTest, BreaksAfterAssignments) { 4379 verifyFormat( 4380 "unsigned Cost =\n" 4381 " TTI.getMemoryOpCost(I->getOpcode(), VectorTy, SI->getAlignment(),\n" 4382 " SI->getPointerAddressSpaceee());\n"); 4383 verifyFormat( 4384 "CharSourceRange LineRange = CharSourceRange::getTokenRange(\n" 4385 " Line.Tokens.front().Tok.getLo(), Line.Tokens.back().Tok.getLoc());"); 4386 4387 verifyFormat( 4388 "aaaaaaaaaaaaaaaaaaaaaaaaaa aaaa = aaaaaaaaaaaaaa(0).aaaa().aaaaaaaaa(\n" 4389 " aaaaaaaaaaaaaaaaaaa::aaaaaaaaaaaaaaaaaaaaa);"); 4390 verifyFormat("unsigned OriginalStartColumn =\n" 4391 " SourceMgr.getSpellingColumnNumber(\n" 4392 " Current.FormatTok.getStartOfNonWhitespace()) -\n" 4393 " 1;"); 4394 } 4395 4396 TEST_F(FormatTest, AlignsAfterAssignments) { 4397 verifyFormat( 4398 "int Result = aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4399 " aaaaaaaaaaaaaaaaaaaaaaaaa;"); 4400 verifyFormat( 4401 "Result += aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4402 " aaaaaaaaaaaaaaaaaaaaaaaaa;"); 4403 verifyFormat( 4404 "Result >>= aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4405 " aaaaaaaaaaaaaaaaaaaaaaaaa;"); 4406 verifyFormat( 4407 "int Result = (aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4408 " aaaaaaaaaaaaaaaaaaaaaaaaa);"); 4409 verifyFormat( 4410 "double LooooooooooooooooooooooooongResult = aaaaaaaaaaaaaaaaaaaaaaaa +\n" 4411 " aaaaaaaaaaaaaaaaaaaaaaaa +\n" 4412 " aaaaaaaaaaaaaaaaaaaaaaaa;"); 4413 } 4414 4415 TEST_F(FormatTest, AlignsAfterReturn) { 4416 verifyFormat( 4417 "return aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4418 " aaaaaaaaaaaaaaaaaaaaaaaaa;"); 4419 verifyFormat( 4420 "return (aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4421 " aaaaaaaaaaaaaaaaaaaaaaaaa);"); 4422 verifyFormat( 4423 "return aaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa >=\n" 4424 " aaaaaaaaaaaaaaaaaaaaaa();"); 4425 verifyFormat( 4426 "return (aaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa >=\n" 4427 " aaaaaaaaaaaaaaaaaaaaaa());"); 4428 verifyFormat("return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4429 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4430 verifyFormat("return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4431 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) &&\n" 4432 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4433 verifyFormat("return\n" 4434 " // true if code is one of a or b.\n" 4435 " code == a || code == b;"); 4436 } 4437 4438 TEST_F(FormatTest, AlignsAfterOpenBracket) { 4439 verifyFormat( 4440 "void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaa aaaaaaaa,\n" 4441 " aaaaaaaaa aaaaaaa) {}"); 4442 verifyFormat( 4443 "SomeLongVariableName->someVeryLongFunctionName(aaaaaaaaaaa aaaaaaaaa,\n" 4444 " aaaaaaaaaaa aaaaaaaaa);"); 4445 verifyFormat( 4446 "SomeLongVariableName->someFunction(foooooooo(aaaaaaaaaaaaaaa,\n" 4447 " aaaaaaaaaaaaaaaaaaaaa));"); 4448 FormatStyle Style = getLLVMStyle(); 4449 Style.AlignAfterOpenBracket = FormatStyle::BAS_DontAlign; 4450 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4451 " aaaaaaaaaaa aaaaaaaa, aaaaaaaaa aaaaaaa) {}", 4452 Style); 4453 verifyFormat("SomeLongVariableName->someVeryLongFunctionName(\n" 4454 " aaaaaaaaaaa aaaaaaaaa, aaaaaaaaaaa aaaaaaaaa);", 4455 Style); 4456 verifyFormat("SomeLongVariableName->someFunction(\n" 4457 " foooooooo(aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaa));", 4458 Style); 4459 verifyFormat( 4460 "void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaa aaaaaaaa,\n" 4461 " aaaaaaaaa aaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}", 4462 Style); 4463 verifyFormat( 4464 "SomeLongVariableName->someVeryLongFunctionName(aaaaaaaaaaa aaaaaaaaa,\n" 4465 " aaaaaaaaaaa aaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4466 Style); 4467 verifyFormat( 4468 "SomeLongVariableName->someFunction(foooooooo(aaaaaaaaaaaaaaa,\n" 4469 " aaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa));", 4470 Style); 4471 4472 verifyFormat("bbbbbbbbbbbb(aaaaaaaaaaaaaaaaaaaaaaaa, //\n" 4473 " ccccccc(aaaaaaaaaaaaaaaaa, //\n" 4474 " b));", 4475 Style); 4476 4477 Style.AlignAfterOpenBracket = FormatStyle::BAS_AlwaysBreak; 4478 Style.BinPackArguments = false; 4479 Style.BinPackParameters = false; 4480 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4481 " aaaaaaaaaaa aaaaaaaa,\n" 4482 " aaaaaaaaa aaaaaaa,\n" 4483 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}", 4484 Style); 4485 verifyFormat("SomeLongVariableName->someVeryLongFunctionName(\n" 4486 " aaaaaaaaaaa aaaaaaaaa,\n" 4487 " aaaaaaaaaaa aaaaaaaaa,\n" 4488 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4489 Style); 4490 verifyFormat("SomeLongVariableName->someFunction(foooooooo(\n" 4491 " aaaaaaaaaaaaaaa,\n" 4492 " aaaaaaaaaaaaaaaaaaaaa,\n" 4493 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa));", 4494 Style); 4495 verifyFormat( 4496 "aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaa(\n" 4497 " aaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaa)));", 4498 Style); 4499 verifyFormat( 4500 "aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaa.aaaaaaaaaa(\n" 4501 " aaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaa)));", 4502 Style); 4503 verifyFormat( 4504 "aaaaaaaaaaaaaaaaaaaaaaaa(\n" 4505 " aaaaaaaaaaaaaaaaaaaaa(\n" 4506 " aaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaa)),\n" 4507 " aaaaaaaaaaaaaaaa);", 4508 Style); 4509 verifyFormat( 4510 "aaaaaaaaaaaaaaaaaaaaaaaa(\n" 4511 " aaaaaaaaaaaaaaaaaaaaa(\n" 4512 " aaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaa)) &&\n" 4513 " aaaaaaaaaaaaaaaa);", 4514 Style); 4515 } 4516 4517 TEST_F(FormatTest, ParenthesesAndOperandAlignment) { 4518 FormatStyle Style = getLLVMStyleWithColumns(40); 4519 verifyFormat("int a = f(aaaaaaaaaaaaaaaaaaaaaa &&\n" 4520 " bbbbbbbbbbbbbbbbbbbbbb);", 4521 Style); 4522 Style.AlignAfterOpenBracket = FormatStyle::BAS_Align; 4523 Style.AlignOperands = false; 4524 verifyFormat("int a = f(aaaaaaaaaaaaaaaaaaaaaa &&\n" 4525 " bbbbbbbbbbbbbbbbbbbbbb);", 4526 Style); 4527 Style.AlignAfterOpenBracket = FormatStyle::BAS_DontAlign; 4528 Style.AlignOperands = true; 4529 verifyFormat("int a = f(aaaaaaaaaaaaaaaaaaaaaa &&\n" 4530 " bbbbbbbbbbbbbbbbbbbbbb);", 4531 Style); 4532 Style.AlignAfterOpenBracket = FormatStyle::BAS_DontAlign; 4533 Style.AlignOperands = false; 4534 verifyFormat("int a = f(aaaaaaaaaaaaaaaaaaaaaa &&\n" 4535 " bbbbbbbbbbbbbbbbbbbbbb);", 4536 Style); 4537 } 4538 4539 TEST_F(FormatTest, BreaksConditionalExpressions) { 4540 verifyFormat( 4541 "aaaa(aaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4542 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4543 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4544 verifyFormat( 4545 "aaaa(aaaaaaaaaaaaaaaaaaaa, aaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4546 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4547 verifyFormat( 4548 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaa ? aaaa(aaaaaa)\n" 4549 " : aaaaaaaaaaaaa);"); 4550 verifyFormat( 4551 "aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4552 " aaaaaaaaaaaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4553 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4554 " aaaaaaaaaaaaa);"); 4555 verifyFormat( 4556 "aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4557 " aaaaaaaaaaaaaaaa ?: aaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4558 " aaaaaaaaaaaaa);"); 4559 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4560 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4561 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4562 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4563 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4564 verifyFormat("aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4565 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4566 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4567 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4568 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4569 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 4570 " aaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4571 verifyFormat("aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4572 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4573 " ?: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4574 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 4575 " aaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4576 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4577 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4578 " : aaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4579 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaa =\n" 4580 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4581 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4582 " : aaaaaaaaaaaaaaaa;"); 4583 verifyFormat( 4584 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4585 " ? aaaaaaaaaaaaaaa\n" 4586 " : aaaaaaaaaaaaaaa;"); 4587 verifyFormat("f(aaaaaaaaaaaaaaaa == // force break\n" 4588 " aaaaaaaaa\n" 4589 " ? b\n" 4590 " : c);"); 4591 verifyFormat("return aaaa == bbbb\n" 4592 " // comment\n" 4593 " ? aaaa\n" 4594 " : bbbb;"); 4595 verifyFormat("unsigned Indent =\n" 4596 " format(TheLine.First, IndentForLevel[TheLine.Level] >= 0\n" 4597 " ? IndentForLevel[TheLine.Level]\n" 4598 " : TheLine * 2,\n" 4599 " TheLine.InPPDirective, PreviousEndOfLineColumn);", 4600 getLLVMStyleWithColumns(70)); 4601 verifyFormat("bool aaaaaa = aaaaaaaaaaaaa //\n" 4602 " ? aaaaaaaaaaaaaaa\n" 4603 " : bbbbbbbbbbbbbbb //\n" 4604 " ? ccccccccccccccc\n" 4605 " : ddddddddddddddd;"); 4606 verifyFormat("bool aaaaaa = aaaaaaaaaaaaa //\n" 4607 " ? aaaaaaaaaaaaaaa\n" 4608 " : (bbbbbbbbbbbbbbb //\n" 4609 " ? ccccccccccccccc\n" 4610 " : ddddddddddddddd);"); 4611 verifyFormat( 4612 "int aaaaaaaaaaaaaaaaaaaaaaaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4613 " ? aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4614 " aaaaaaaaaaaaaaaaaaaaa +\n" 4615 " aaaaaaaaaaaaaaaaaaaaa\n" 4616 " : aaaaaaaaaa;"); 4617 verifyFormat( 4618 "aaaaaa = aaaaaaaaaaaa\n" 4619 " ? aaaaaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4620 " : aaaaaaaaaaaaaaaaaaaaaa\n" 4621 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4622 4623 FormatStyle NoBinPacking = getLLVMStyle(); 4624 NoBinPacking.BinPackArguments = false; 4625 verifyFormat( 4626 "void f() {\n" 4627 " g(aaa,\n" 4628 " aaaaaaaaaa == aaaaaaaaaa ? aaaa : aaaaa,\n" 4629 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4630 " ? aaaaaaaaaaaaaaa\n" 4631 " : aaaaaaaaaaaaaaa);\n" 4632 "}", 4633 NoBinPacking); 4634 verifyFormat( 4635 "void f() {\n" 4636 " g(aaa,\n" 4637 " aaaaaaaaaa == aaaaaaaaaa ? aaaa : aaaaa,\n" 4638 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4639 " ?: aaaaaaaaaaaaaaa);\n" 4640 "}", 4641 NoBinPacking); 4642 4643 verifyFormat("SomeFunction(aaaaaaaaaaaaaaaaa,\n" 4644 " // comment.\n" 4645 " ccccccccccccccccccccccccccccccccccccccc\n" 4646 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4647 " : bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb);"); 4648 4649 // Assignments in conditional expressions. Apparently not uncommon :-(. 4650 verifyFormat("return a != b\n" 4651 " // comment\n" 4652 " ? a = b\n" 4653 " : a = b;"); 4654 verifyFormat("return a != b\n" 4655 " // comment\n" 4656 " ? a = a != b\n" 4657 " // comment\n" 4658 " ? a = b\n" 4659 " : a\n" 4660 " : a;\n"); 4661 verifyFormat("return a != b\n" 4662 " // comment\n" 4663 " ? a\n" 4664 " : a = a != b\n" 4665 " // comment\n" 4666 " ? a = b\n" 4667 " : a;"); 4668 } 4669 4670 TEST_F(FormatTest, BreaksConditionalExpressionsAfterOperator) { 4671 FormatStyle Style = getLLVMStyle(); 4672 Style.BreakBeforeTernaryOperators = false; 4673 Style.ColumnLimit = 70; 4674 verifyFormat( 4675 "aaaa(aaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 4676 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 4677 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4678 Style); 4679 verifyFormat( 4680 "aaaa(aaaaaaaaaaaaaaaaaaaa, aaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 4681 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4682 Style); 4683 verifyFormat( 4684 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaa ? aaaa(aaaaaa) :\n" 4685 " aaaaaaaaaaaaa);", 4686 Style); 4687 verifyFormat( 4688 "aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4689 " aaaaaaaaaaaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 4690 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4691 " aaaaaaaaaaaaa);", 4692 Style); 4693 verifyFormat( 4694 "aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4695 " aaaaaaaaaaaaaaaa ?: aaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4696 " aaaaaaaaaaaaa);", 4697 Style); 4698 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 4699 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4700 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) :\n" 4701 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4702 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4703 Style); 4704 verifyFormat("aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4705 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 4706 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4707 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) :\n" 4708 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4709 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 4710 " aaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4711 Style); 4712 verifyFormat("aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4713 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?:\n" 4714 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4715 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 4716 " aaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4717 Style); 4718 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 4719 " aaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 4720 " aaaaaaaaaaaaaaaaaaaaaaaaaaa;", 4721 Style); 4722 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaa =\n" 4723 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 4724 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 4725 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;", 4726 Style); 4727 verifyFormat( 4728 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 4729 " aaaaaaaaaaaaaaa :\n" 4730 " aaaaaaaaaaaaaaa;", 4731 Style); 4732 verifyFormat("f(aaaaaaaaaaaaaaaa == // force break\n" 4733 " aaaaaaaaa ?\n" 4734 " b :\n" 4735 " c);", 4736 Style); 4737 verifyFormat( 4738 "unsigned Indent =\n" 4739 " format(TheLine.First, IndentForLevel[TheLine.Level] >= 0 ?\n" 4740 " IndentForLevel[TheLine.Level] :\n" 4741 " TheLine * 2,\n" 4742 " TheLine.InPPDirective, PreviousEndOfLineColumn);", 4743 Style); 4744 verifyFormat("bool aaaaaa = aaaaaaaaaaaaa ? //\n" 4745 " aaaaaaaaaaaaaaa :\n" 4746 " bbbbbbbbbbbbbbb ? //\n" 4747 " ccccccccccccccc :\n" 4748 " ddddddddddddddd;", 4749 Style); 4750 verifyFormat("bool aaaaaa = aaaaaaaaaaaaa ? //\n" 4751 " aaaaaaaaaaaaaaa :\n" 4752 " (bbbbbbbbbbbbbbb ? //\n" 4753 " ccccccccccccccc :\n" 4754 " ddddddddddddddd);", 4755 Style); 4756 verifyFormat("int i = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 4757 " /*bbbbbbbbbbbbbbb=*/bbbbbbbbbbbbbbbbbbbbbbbbb :\n" 4758 " ccccccccccccccccccccccccccc;", 4759 Style); 4760 verifyFormat("return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 4761 " aaaaa :\n" 4762 " bbbbbbbbbbbbbbb + cccccccccccccccc;", 4763 Style); 4764 } 4765 4766 TEST_F(FormatTest, DeclarationsOfMultipleVariables) { 4767 verifyFormat("bool aaaaaaaaaaaaaaaaa = aaaaaa->aaaaaaaaaaaaaaaaa(),\n" 4768 " aaaaaaaaaaa = aaaaaa->aaaaaaaaaaa();"); 4769 verifyFormat("bool a = true, b = false;"); 4770 4771 verifyFormat("bool aaaaaaaaaaaaaaaaaaaaaaaaa =\n" 4772 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaa),\n" 4773 " bbbbbbbbbbbbbbbbbbbbbbbbb =\n" 4774 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(bbbbbbbbbbbbbbbb);"); 4775 verifyFormat( 4776 "bool aaaaaaaaaaaaaaaaaaaaa =\n" 4777 " bbbbbbbbbbbbbbbbbbbbbbbbbbbb && cccccccccccccccccccccccccccc,\n" 4778 " d = e && f;"); 4779 verifyFormat("aaaaaaaaa a = aaaaaaaaaaaaaaaaaaaa, b = bbbbbbbbbbbbbbbbbbbb,\n" 4780 " c = cccccccccccccccccccc, d = dddddddddddddddddddd;"); 4781 verifyFormat("aaaaaaaaa *a = aaaaaaaaaaaaaaaaaaa, *b = bbbbbbbbbbbbbbbbbbb,\n" 4782 " *c = ccccccccccccccccccc, *d = ddddddddddddddddddd;"); 4783 verifyFormat("aaaaaaaaa ***a = aaaaaaaaaaaaaaaaaaa, ***b = bbbbbbbbbbbbbbb,\n" 4784 " ***c = ccccccccccccccccccc, ***d = ddddddddddddddd;"); 4785 4786 FormatStyle Style = getGoogleStyle(); 4787 Style.PointerAlignment = FormatStyle::PAS_Left; 4788 Style.DerivePointerAlignment = false; 4789 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4790 " *aaaaaaaaaaaaaaaaaaaaaaaaaaaaa = aaaaaaaaaaaaaaaaaaa,\n" 4791 " *b = bbbbbbbbbbbbbbbbbbb;", 4792 Style); 4793 verifyFormat("aaaaaaaaa *a = aaaaaaaaaaaaaaaaaaa, *b = bbbbbbbbbbbbbbbbbbb,\n" 4794 " *b = bbbbbbbbbbbbbbbbbbb, *d = ddddddddddddddddddd;", 4795 Style); 4796 } 4797 4798 TEST_F(FormatTest, ConditionalExpressionsInBrackets) { 4799 verifyFormat("arr[foo ? bar : baz];"); 4800 verifyFormat("f()[foo ? bar : baz];"); 4801 verifyFormat("(a + b)[foo ? bar : baz];"); 4802 verifyFormat("arr[foo ? (4 > 5 ? 4 : 5) : 5 < 5 ? 5 : 7];"); 4803 } 4804 4805 TEST_F(FormatTest, AlignsStringLiterals) { 4806 verifyFormat("loooooooooooooooooooooooooongFunction(\"short literal \"\n" 4807 " \"short literal\");"); 4808 verifyFormat( 4809 "looooooooooooooooooooooooongFunction(\n" 4810 " \"short literal\"\n" 4811 " \"looooooooooooooooooooooooooooooooooooooooooooooooong literal\");"); 4812 verifyFormat("someFunction(\"Always break between multi-line\"\n" 4813 " \" string literals\",\n" 4814 " and, other, parameters);"); 4815 EXPECT_EQ("fun + \"1243\" /* comment */\n" 4816 " \"5678\";", 4817 format("fun + \"1243\" /* comment */\n" 4818 " \"5678\";", 4819 getLLVMStyleWithColumns(28))); 4820 EXPECT_EQ( 4821 "aaaaaa = \"aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaa \"\n" 4822 " \"aaaaaaaaaaaaaaaaaaaaa\"\n" 4823 " \"aaaaaaaaaaaaaaaa\";", 4824 format("aaaaaa =" 4825 "\"aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaa " 4826 "aaaaaaaaaaaaaaaaaaaaa\" " 4827 "\"aaaaaaaaaaaaaaaa\";")); 4828 verifyFormat("a = a + \"a\"\n" 4829 " \"a\"\n" 4830 " \"a\";"); 4831 verifyFormat("f(\"a\", \"b\"\n" 4832 " \"c\");"); 4833 4834 verifyFormat( 4835 "#define LL_FORMAT \"ll\"\n" 4836 "printf(\"aaaaa: %d, bbbbbb: %\" LL_FORMAT \"d, cccccccc: %\" LL_FORMAT\n" 4837 " \"d, ddddddddd: %\" LL_FORMAT \"d\");"); 4838 4839 verifyFormat("#define A(X) \\\n" 4840 " \"aaaaa\" #X \"bbbbbb\" \\\n" 4841 " \"ccccc\"", 4842 getLLVMStyleWithColumns(23)); 4843 verifyFormat("#define A \"def\"\n" 4844 "f(\"abc\" A \"ghi\"\n" 4845 " \"jkl\");"); 4846 4847 verifyFormat("f(L\"a\"\n" 4848 " L\"b\");"); 4849 verifyFormat("#define A(X) \\\n" 4850 " L\"aaaaa\" #X L\"bbbbbb\" \\\n" 4851 " L\"ccccc\"", 4852 getLLVMStyleWithColumns(25)); 4853 4854 verifyFormat("f(@\"a\"\n" 4855 " @\"b\");"); 4856 verifyFormat("NSString s = @\"a\"\n" 4857 " @\"b\"\n" 4858 " @\"c\";"); 4859 verifyFormat("NSString s = @\"a\"\n" 4860 " \"b\"\n" 4861 " \"c\";"); 4862 } 4863 4864 TEST_F(FormatTest, ReturnTypeBreakingStyle) { 4865 FormatStyle Style = getLLVMStyle(); 4866 // No declarations or definitions should be moved to own line. 4867 Style.AlwaysBreakAfterReturnType = FormatStyle::RTBS_None; 4868 verifyFormat("class A {\n" 4869 " int f() { return 1; }\n" 4870 " int g();\n" 4871 "};\n" 4872 "int f() { return 1; }\n" 4873 "int g();\n", 4874 Style); 4875 4876 // All declarations and definitions should have the return type moved to its 4877 // own 4878 // line. 4879 Style.AlwaysBreakAfterReturnType = FormatStyle::RTBS_All; 4880 verifyFormat("class E {\n" 4881 " int\n" 4882 " f() {\n" 4883 " return 1;\n" 4884 " }\n" 4885 " int\n" 4886 " g();\n" 4887 "};\n" 4888 "int\n" 4889 "f() {\n" 4890 " return 1;\n" 4891 "}\n" 4892 "int\n" 4893 "g();\n", 4894 Style); 4895 4896 // Top-level definitions, and no kinds of declarations should have the 4897 // return type moved to its own line. 4898 Style.AlwaysBreakAfterReturnType = FormatStyle::RTBS_TopLevelDefinitions; 4899 verifyFormat("class B {\n" 4900 " int f() { return 1; }\n" 4901 " int g();\n" 4902 "};\n" 4903 "int\n" 4904 "f() {\n" 4905 " return 1;\n" 4906 "}\n" 4907 "int g();\n", 4908 Style); 4909 4910 // Top-level definitions and declarations should have the return type moved 4911 // to its own line. 4912 Style.AlwaysBreakAfterReturnType = FormatStyle::RTBS_TopLevel; 4913 verifyFormat("class C {\n" 4914 " int f() { return 1; }\n" 4915 " int g();\n" 4916 "};\n" 4917 "int\n" 4918 "f() {\n" 4919 " return 1;\n" 4920 "}\n" 4921 "int\n" 4922 "g();\n", 4923 Style); 4924 4925 // All definitions should have the return type moved to its own line, but no 4926 // kinds of declarations. 4927 Style.AlwaysBreakAfterReturnType = FormatStyle::RTBS_AllDefinitions; 4928 verifyFormat("class D {\n" 4929 " int\n" 4930 " f() {\n" 4931 " return 1;\n" 4932 " }\n" 4933 " int g();\n" 4934 "};\n" 4935 "int\n" 4936 "f() {\n" 4937 " return 1;\n" 4938 "}\n" 4939 "int g();\n", 4940 Style); 4941 verifyFormat("const char *\n" 4942 "f(void) {\n" // Break here. 4943 " return \"\";\n" 4944 "}\n" 4945 "const char *bar(void);\n", // No break here. 4946 Style); 4947 verifyFormat("template <class T>\n" 4948 "T *\n" 4949 "f(T &c) {\n" // Break here. 4950 " return NULL;\n" 4951 "}\n" 4952 "template <class T> T *f(T &c);\n", // No break here. 4953 Style); 4954 verifyFormat("class C {\n" 4955 " int\n" 4956 " operator+() {\n" 4957 " return 1;\n" 4958 " }\n" 4959 " int\n" 4960 " operator()() {\n" 4961 " return 1;\n" 4962 " }\n" 4963 "};\n", 4964 Style); 4965 verifyFormat("void\n" 4966 "A::operator()() {}\n" 4967 "void\n" 4968 "A::operator>>() {}\n" 4969 "void\n" 4970 "A::operator+() {}\n", 4971 Style); 4972 verifyFormat("void *operator new(std::size_t s);", // No break here. 4973 Style); 4974 verifyFormat("void *\n" 4975 "operator new(std::size_t s) {}", 4976 Style); 4977 verifyFormat("void *\n" 4978 "operator delete[](void *ptr) {}", 4979 Style); 4980 Style.BreakBeforeBraces = FormatStyle::BS_Stroustrup; 4981 verifyFormat("const char *\n" 4982 "f(void)\n" // Break here. 4983 "{\n" 4984 " return \"\";\n" 4985 "}\n" 4986 "const char *bar(void);\n", // No break here. 4987 Style); 4988 verifyFormat("template <class T>\n" 4989 "T *\n" // Problem here: no line break 4990 "f(T &c)\n" // Break here. 4991 "{\n" 4992 " return NULL;\n" 4993 "}\n" 4994 "template <class T> T *f(T &c);\n", // No break here. 4995 Style); 4996 } 4997 4998 TEST_F(FormatTest, AlwaysBreakBeforeMultilineStrings) { 4999 FormatStyle NoBreak = getLLVMStyle(); 5000 NoBreak.AlwaysBreakBeforeMultilineStrings = false; 5001 FormatStyle Break = getLLVMStyle(); 5002 Break.AlwaysBreakBeforeMultilineStrings = true; 5003 verifyFormat("aaaa = \"bbbb\"\n" 5004 " \"cccc\";", 5005 NoBreak); 5006 verifyFormat("aaaa =\n" 5007 " \"bbbb\"\n" 5008 " \"cccc\";", 5009 Break); 5010 verifyFormat("aaaa(\"bbbb\"\n" 5011 " \"cccc\");", 5012 NoBreak); 5013 verifyFormat("aaaa(\n" 5014 " \"bbbb\"\n" 5015 " \"cccc\");", 5016 Break); 5017 verifyFormat("aaaa(qqq, \"bbbb\"\n" 5018 " \"cccc\");", 5019 NoBreak); 5020 verifyFormat("aaaa(qqq,\n" 5021 " \"bbbb\"\n" 5022 " \"cccc\");", 5023 Break); 5024 verifyFormat("aaaa(qqq,\n" 5025 " L\"bbbb\"\n" 5026 " L\"cccc\");", 5027 Break); 5028 verifyFormat("aaaaa(aaaaaa, aaaaaaa(\"aaaa\"\n" 5029 " \"bbbb\"));", 5030 Break); 5031 verifyFormat("string s = someFunction(\n" 5032 " \"abc\"\n" 5033 " \"abc\");", 5034 Break); 5035 5036 // As we break before unary operators, breaking right after them is bad. 5037 verifyFormat("string foo = abc ? \"x\"\n" 5038 " \"blah blah blah blah blah blah\"\n" 5039 " : \"y\";", 5040 Break); 5041 5042 // Don't break if there is no column gain. 5043 verifyFormat("f(\"aaaa\"\n" 5044 " \"bbbb\");", 5045 Break); 5046 5047 // Treat literals with escaped newlines like multi-line string literals. 5048 EXPECT_EQ("x = \"a\\\n" 5049 "b\\\n" 5050 "c\";", 5051 format("x = \"a\\\n" 5052 "b\\\n" 5053 "c\";", 5054 NoBreak)); 5055 EXPECT_EQ("xxxx =\n" 5056 " \"a\\\n" 5057 "b\\\n" 5058 "c\";", 5059 format("xxxx = \"a\\\n" 5060 "b\\\n" 5061 "c\";", 5062 Break)); 5063 5064 // Exempt ObjC strings for now. 5065 EXPECT_EQ("NSString *const kString = @\"aaaa\"\n" 5066 " @\"bbbb\";", 5067 format("NSString *const kString = @\"aaaa\"\n" 5068 "@\"bbbb\";", 5069 Break)); 5070 5071 Break.ColumnLimit = 0; 5072 verifyFormat("const char *hello = \"hello llvm\";", Break); 5073 } 5074 5075 TEST_F(FormatTest, AlignsPipes) { 5076 verifyFormat( 5077 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5078 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5079 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 5080 verifyFormat( 5081 "aaaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaa\n" 5082 " << aaaaaaaaaaaaaaaaaaaa;"); 5083 verifyFormat( 5084 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5085 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 5086 verifyFormat( 5087 "llvm::outs() << \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"\n" 5088 " \"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\"\n" 5089 " << \"ccccccccccccccccccccccccccccccccccccccccccccccccc\";"); 5090 verifyFormat( 5091 "aaaaaaaa << (aaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5092 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 5093 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 5094 verifyFormat("llvm::errs() << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5095 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5096 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 5097 " << bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;"); 5098 verifyFormat("llvm::errs() << \"aaaaaaaaaaaaaaaaaaaaaaa: \"\n" 5099 " << aaaaaaaaaaaaaaaaa(aaaaaaaa, aaaaaaaaaaa);"); 5100 verifyFormat( 5101 "llvm::errs() << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5102 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 5103 5104 verifyFormat("return out << \"somepacket = {\\n\"\n" 5105 " << \" aaaaaa = \" << pkt.aaaaaa << \"\\n\"\n" 5106 " << \" bbbb = \" << pkt.bbbb << \"\\n\"\n" 5107 " << \" cccccc = \" << pkt.cccccc << \"\\n\"\n" 5108 " << \" ddd = [\" << pkt.ddd << \"]\\n\"\n" 5109 " << \"}\";"); 5110 5111 verifyFormat("llvm::outs() << \"aaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaa\n" 5112 " << \"aaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaa\n" 5113 " << \"aaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaa;"); 5114 verifyFormat( 5115 "llvm::outs() << \"aaaaaaaaaaaaaaaaa = \" << aaaaaaaaaaaaaaaaa\n" 5116 " << \"bbbbbbbbbbbbbbbbb = \" << bbbbbbbbbbbbbbbbb\n" 5117 " << \"ccccccccccccccccc = \" << ccccccccccccccccc\n" 5118 " << \"ddddddddddddddddd = \" << ddddddddddddddddd\n" 5119 " << \"eeeeeeeeeeeeeeeee = \" << eeeeeeeeeeeeeeeee;"); 5120 verifyFormat("llvm::outs() << aaaaaaaaaaaaaaaaaaaaaaaa << \"=\"\n" 5121 " << bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;"); 5122 verifyFormat( 5123 "void f() {\n" 5124 " llvm::outs() << \"aaaaaaaaaaaaaaaaaaaa: \"\n" 5125 " << aaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaa);\n" 5126 "}"); 5127 verifyFormat("llvm::outs() << \"aaaaaaaaaaaaaaaa: \"\n" 5128 " << aaaaaaaa.aaaaaaaaaaaa(aaa)->aaaaaaaaaaaaaa();"); 5129 verifyFormat("llvm::errs() << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5130 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5131 " aaaaaaaaaaaaaaaaaaaaa)\n" 5132 " << aaaaaaaaaaaaaaaaaaaaaaaaaa;"); 5133 verifyFormat("LOG_IF(aaa == //\n" 5134 " bbb)\n" 5135 " << a << b;"); 5136 5137 // Breaking before the first "<<" is generally not desirable. 5138 verifyFormat( 5139 "llvm::errs()\n" 5140 " << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5141 " << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5142 " << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5143 " << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa;", 5144 getLLVMStyleWithColumns(70)); 5145 verifyFormat("llvm::errs() << \"aaaaaaaaaaaaaaaaaaa: \"\n" 5146 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5147 " << \"aaaaaaaaaaaaaaaaaaa: \"\n" 5148 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5149 " << \"aaaaaaaaaaaaaaaaaaa: \"\n" 5150 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaa;", 5151 getLLVMStyleWithColumns(70)); 5152 5153 // But sometimes, breaking before the first "<<" is desirable. 5154 verifyFormat("Diag(aaaaaaaaaaaaaaaaaaaa, aaaaaaaa)\n" 5155 " << aaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaa);"); 5156 verifyFormat("Diag(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbb)\n" 5157 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5158 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 5159 verifyFormat("SemaRef.Diag(Loc, diag::note_for_range_begin_end)\n" 5160 " << BEF << IsTemplate << Description << E->getType();"); 5161 verifyFormat("Diag(aaaaaaaaaaaaaaaaaaaa, aaaaaaaa)\n" 5162 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5163 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 5164 verifyFormat("Diag(aaaaaaaaaaaaaaaaaaaa, aaaaaaaa)\n" 5165 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5166 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 5167 " << aaa;"); 5168 5169 verifyFormat( 5170 "llvm::errs() << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5171 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 5172 5173 // Incomplete string literal. 5174 EXPECT_EQ("llvm::errs() << \"\n" 5175 " << a;", 5176 format("llvm::errs() << \"\n<<a;")); 5177 5178 verifyFormat("void f() {\n" 5179 " CHECK_EQ(aaaa, (*bbbbbbbbb)->cccccc)\n" 5180 " << \"qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq\";\n" 5181 "}"); 5182 5183 // Handle 'endl'. 5184 verifyFormat("llvm::errs() << aaaaaaaaaaaaaaaaaaaaaa << endl\n" 5185 " << bbbbbbbbbbbbbbbbbbbbbb << endl;"); 5186 verifyFormat("llvm::errs() << endl << bbbbbbbbbbbbbbbbbbbbbb << endl;"); 5187 5188 // Handle '\n'. 5189 verifyFormat("llvm::errs() << aaaaaaaaaaaaaaaaaaaaaa << \"\\n\"\n" 5190 " << bbbbbbbbbbbbbbbbbbbbbb << \"\\n\";"); 5191 verifyFormat("llvm::errs() << aaaaaaaaaaaaaaaaaaaaaa << \'\\n\'\n" 5192 " << bbbbbbbbbbbbbbbbbbbbbb << \'\\n\';"); 5193 verifyFormat("llvm::errs() << aaaa << \"aaaaaaaaaaaaaaaaaa\\n\"\n" 5194 " << bbbb << \"bbbbbbbbbbbbbbbbbb\\n\";"); 5195 verifyFormat("llvm::errs() << \"\\n\" << bbbbbbbbbbbbbbbbbbbbbb << \"\\n\";"); 5196 } 5197 5198 TEST_F(FormatTest, UnderstandsEquals) { 5199 verifyFormat( 5200 "aaaaaaaaaaaaaaaaa =\n" 5201 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 5202 verifyFormat( 5203 "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 5204 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}"); 5205 verifyFormat( 5206 "if (a) {\n" 5207 " f();\n" 5208 "} else if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 5209 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n" 5210 "}"); 5211 5212 verifyFormat("if (int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 5213 " 100000000 + 10000000) {\n}"); 5214 } 5215 5216 TEST_F(FormatTest, WrapsAtFunctionCallsIfNecessary) { 5217 verifyFormat("LoooooooooooooooooooooooooooooooooooooongObject\n" 5218 " .looooooooooooooooooooooooooooooooooooooongFunction();"); 5219 5220 verifyFormat("LoooooooooooooooooooooooooooooooooooooongObject\n" 5221 " ->looooooooooooooooooooooooooooooooooooooongFunction();"); 5222 5223 verifyFormat( 5224 "LooooooooooooooooooooooooooooooooongObject->shortFunction(Parameter1,\n" 5225 " Parameter2);"); 5226 5227 verifyFormat( 5228 "ShortObject->shortFunction(\n" 5229 " LooooooooooooooooooooooooooooooooooooooooooooooongParameter1,\n" 5230 " LooooooooooooooooooooooooooooooooooooooooooooooongParameter2);"); 5231 5232 verifyFormat("loooooooooooooongFunction(\n" 5233 " LoooooooooooooongObject->looooooooooooooooongFunction());"); 5234 5235 verifyFormat( 5236 "function(LoooooooooooooooooooooooooooooooooooongObject\n" 5237 " ->loooooooooooooooooooooooooooooooooooooooongFunction());"); 5238 5239 verifyFormat("EXPECT_CALL(SomeObject, SomeFunction(Parameter))\n" 5240 " .WillRepeatedly(Return(SomeValue));"); 5241 verifyFormat("void f() {\n" 5242 " EXPECT_CALL(SomeObject, SomeFunction(Parameter))\n" 5243 " .Times(2)\n" 5244 " .WillRepeatedly(Return(SomeValue));\n" 5245 "}"); 5246 verifyFormat("SomeMap[std::pair(aaaaaaaaaaaa, bbbbbbbbbbbbbbb)].insert(\n" 5247 " ccccccccccccccccccccccc);"); 5248 verifyFormat("aaaaa(aaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5249 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 5250 " .aaaaa(aaaaa),\n" 5251 " aaaaaaaaaaaaaaaaaaaaa);"); 5252 verifyFormat("void f() {\n" 5253 " aaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5254 " aaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa)->aaaaaaaaa());\n" 5255 "}"); 5256 verifyFormat("aaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5257 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 5258 " .aaaaaaaaaaaaaaa(aa(aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5259 " aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5260 " aaaaaaaaaaaaaaaaaaaaaaaaaaa));"); 5261 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5262 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5263 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5264 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()) {\n" 5265 "}"); 5266 5267 // Here, it is not necessary to wrap at "." or "->". 5268 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaa) ||\n" 5269 " aaaa.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}"); 5270 verifyFormat( 5271 "aaaaaaaaaaa->aaaaaaaaa(\n" 5272 " aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5273 " aaaaaaaaaaaaaaaaaa->aaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa));\n"); 5274 5275 verifyFormat( 5276 "aaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5277 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa().aaaaaaaaaaaaaaaaa());"); 5278 verifyFormat("a->aaaaaa()->aaaaaaaaaaa(aaaaaaaa()->aaaaaa()->aaaaa() *\n" 5279 " aaaaaaaaa()->aaaaaa()->aaaaa());"); 5280 verifyFormat("a->aaaaaa()->aaaaaaaaaaa(aaaaaaaa()->aaaaaa()->aaaaa() ||\n" 5281 " aaaaaaaaa()->aaaaaa()->aaaaa());"); 5282 5283 verifyFormat("aaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5284 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 5285 " .a();"); 5286 5287 FormatStyle NoBinPacking = getLLVMStyle(); 5288 NoBinPacking.BinPackParameters = false; 5289 verifyFormat("aaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaa)\n" 5290 " .aaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaa)\n" 5291 " .aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaa,\n" 5292 " aaaaaaaaaaaaaaaaaaa,\n" 5293 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 5294 NoBinPacking); 5295 5296 // If there is a subsequent call, change to hanging indentation. 5297 verifyFormat( 5298 "aaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5299 " aaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa))\n" 5300 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 5301 verifyFormat( 5302 "aaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5303 " aaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa));"); 5304 verifyFormat("aaaaaaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5305 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 5306 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 5307 verifyFormat("aaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5308 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 5309 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa());"); 5310 } 5311 5312 TEST_F(FormatTest, WrapsTemplateDeclarations) { 5313 verifyFormat("template <typename T>\n" 5314 "virtual void loooooooooooongFunction(int Param1, int Param2);"); 5315 verifyFormat("template <typename T>\n" 5316 "// T should be one of {A, B}.\n" 5317 "virtual void loooooooooooongFunction(int Param1, int Param2);"); 5318 verifyFormat( 5319 "template <typename T>\n" 5320 "using comment_to_xml_conversion = comment_to_xml_conversion<T, int>;"); 5321 verifyFormat("template <typename T>\n" 5322 "void f(int Paaaaaaaaaaaaaaaaaaaaaaaaaaaaaaram1,\n" 5323 " int Paaaaaaaaaaaaaaaaaaaaaaaaaaaaaaram2);"); 5324 verifyFormat( 5325 "template <typename T>\n" 5326 "void looooooooooooooooooooongFunction(int Paaaaaaaaaaaaaaaaaaaaram1,\n" 5327 " int Paaaaaaaaaaaaaaaaaaaaram2);"); 5328 verifyFormat( 5329 "template <typename T>\n" 5330 "aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaa,\n" 5331 " aaaaaaaaaaaaaaaaaaaaaaaaaa<T>::aaaaaaaaaa,\n" 5332 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 5333 verifyFormat("template <typename T>\n" 5334 "void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5335 " int aaaaaaaaaaaaaaaaaaaaaa);"); 5336 verifyFormat( 5337 "template <typename T1, typename T2 = char, typename T3 = char,\n" 5338 " typename T4 = char>\n" 5339 "void f();"); 5340 verifyFormat("template <typename aaaaaaaaaaa, typename bbbbbbbbbbbbb,\n" 5341 " template <typename> class cccccccccccccccccccccc,\n" 5342 " typename ddddddddddddd>\n" 5343 "class C {};"); 5344 verifyFormat( 5345 "aaaaaaaaaaaaaaaaaaaaaaaa<aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa>(\n" 5346 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 5347 5348 verifyFormat("void f() {\n" 5349 " a<aaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaa>(\n" 5350 " a(aaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaa));\n" 5351 "}"); 5352 5353 verifyFormat("template <typename T> class C {};"); 5354 verifyFormat("template <typename T> void f();"); 5355 verifyFormat("template <typename T> void f() {}"); 5356 verifyFormat( 5357 "aaaaaaaaaaaaa<aaaaaaaaaa, aaaaaaaaaaa,\n" 5358 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5359 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa> *aaaa =\n" 5360 " new aaaaaaaaaaaaa<aaaaaaaaaa, aaaaaaaaaaa,\n" 5361 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5362 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>(\n" 5363 " bbbbbbbbbbbbbbbbbbbbbbbb);", 5364 getLLVMStyleWithColumns(72)); 5365 EXPECT_EQ("static_cast<A< //\n" 5366 " B> *>(\n" 5367 "\n" 5368 " );", 5369 format("static_cast<A<//\n" 5370 " B>*>(\n" 5371 "\n" 5372 " );")); 5373 verifyFormat("int aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5374 " const typename aaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaa);"); 5375 5376 FormatStyle AlwaysBreak = getLLVMStyle(); 5377 AlwaysBreak.AlwaysBreakTemplateDeclarations = true; 5378 verifyFormat("template <typename T>\nclass C {};", AlwaysBreak); 5379 verifyFormat("template <typename T>\nvoid f();", AlwaysBreak); 5380 verifyFormat("template <typename T>\nvoid f() {}", AlwaysBreak); 5381 verifyFormat("void aaaaaaaaaaaaaaaaaaa<aaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5382 " bbbbbbbbbbbbbbbbbbbbbbbbbbbb>(\n" 5383 " ccccccccccccccccccccccccccccccccccccccccccccccc);"); 5384 verifyFormat("template <template <typename> class Fooooooo,\n" 5385 " template <typename> class Baaaaaaar>\n" 5386 "struct C {};", 5387 AlwaysBreak); 5388 verifyFormat("template <typename T> // T can be A, B or C.\n" 5389 "struct C {};", 5390 AlwaysBreak); 5391 verifyFormat("template <enum E> class A {\n" 5392 "public:\n" 5393 " E *f();\n" 5394 "};"); 5395 } 5396 5397 TEST_F(FormatTest, WrapsAtNestedNameSpecifiers) { 5398 verifyFormat( 5399 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 5400 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 5401 verifyFormat( 5402 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 5403 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5404 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa());"); 5405 5406 // FIXME: Should we have the extra indent after the second break? 5407 verifyFormat( 5408 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 5409 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 5410 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 5411 5412 verifyFormat( 5413 "aaaaaaaaaaaaaaa(bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb::\n" 5414 " cccccccccccccccccccccccccccccccccccccccccccccc());"); 5415 5416 // Breaking at nested name specifiers is generally not desirable. 5417 verifyFormat( 5418 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5419 " aaaaaaaaaaaaaaaaaaaaaaa);"); 5420 5421 verifyFormat( 5422 "aaaaaaaaaaaaaaaaaa(aaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 5423 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5424 " aaaaaaaaaaaaaaaaaaaaa);", 5425 getLLVMStyleWithColumns(74)); 5426 5427 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 5428 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5429 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 5430 } 5431 5432 TEST_F(FormatTest, UnderstandsTemplateParameters) { 5433 verifyFormat("A<int> a;"); 5434 verifyFormat("A<A<A<int>>> a;"); 5435 verifyFormat("A<A<A<int, 2>, 3>, 4> a;"); 5436 verifyFormat("bool x = a < 1 || 2 > a;"); 5437 verifyFormat("bool x = 5 < f<int>();"); 5438 verifyFormat("bool x = f<int>() > 5;"); 5439 verifyFormat("bool x = 5 < a<int>::x;"); 5440 verifyFormat("bool x = a < 4 ? a > 2 : false;"); 5441 verifyFormat("bool x = f() ? a < 2 : a > 2;"); 5442 5443 verifyGoogleFormat("A<A<int>> a;"); 5444 verifyGoogleFormat("A<A<A<int>>> a;"); 5445 verifyGoogleFormat("A<A<A<A<int>>>> a;"); 5446 verifyGoogleFormat("A<A<int> > a;"); 5447 verifyGoogleFormat("A<A<A<int> > > a;"); 5448 verifyGoogleFormat("A<A<A<A<int> > > > a;"); 5449 verifyGoogleFormat("A<::A<int>> a;"); 5450 verifyGoogleFormat("A<::A> a;"); 5451 verifyGoogleFormat("A< ::A> a;"); 5452 verifyGoogleFormat("A< ::A<int> > a;"); 5453 EXPECT_EQ("A<A<A<A>>> a;", format("A<A<A<A> >> a;", getGoogleStyle())); 5454 EXPECT_EQ("A<A<A<A>>> a;", format("A<A<A<A>> > a;", getGoogleStyle())); 5455 EXPECT_EQ("A<::A<int>> a;", format("A< ::A<int>> a;", getGoogleStyle())); 5456 EXPECT_EQ("A<::A<int>> a;", format("A<::A<int> > a;", getGoogleStyle())); 5457 EXPECT_EQ("auto x = [] { A<A<A<A>>> a; };", 5458 format("auto x=[]{A<A<A<A> >> a;};", getGoogleStyle())); 5459 5460 verifyFormat("A<A>> a;", getChromiumStyle(FormatStyle::LK_Cpp)); 5461 5462 verifyFormat("test >> a >> b;"); 5463 verifyFormat("test << a >> b;"); 5464 5465 verifyFormat("f<int>();"); 5466 verifyFormat("template <typename T> void f() {}"); 5467 verifyFormat("struct A<std::enable_if<sizeof(T2) < sizeof(int32)>::type>;"); 5468 verifyFormat("struct A<std::enable_if<sizeof(T2) ? sizeof(int32) : " 5469 "sizeof(char)>::type>;"); 5470 verifyFormat("template <class T> struct S<std::is_arithmetic<T>{}> {};"); 5471 verifyFormat("f(a.operator()<A>());"); 5472 verifyFormat("f(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5473 " .template operator()<A>());", 5474 getLLVMStyleWithColumns(35)); 5475 5476 // Not template parameters. 5477 verifyFormat("return a < b && c > d;"); 5478 verifyFormat("void f() {\n" 5479 " while (a < b && c > d) {\n" 5480 " }\n" 5481 "}"); 5482 verifyFormat("template <typename... Types>\n" 5483 "typename enable_if<0 < sizeof...(Types)>::type Foo() {}"); 5484 5485 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5486 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaa >> aaaaa);", 5487 getLLVMStyleWithColumns(60)); 5488 verifyFormat("static_assert(is_convertible<A &&, B>::value, \"AAA\");"); 5489 verifyFormat("Constructor(A... a) : a_(X<A>{std::forward<A>(a)}...) {}"); 5490 verifyFormat("< < < < < < < < < < < < < < < < < < < < < < < < < < < < < <"); 5491 } 5492 5493 TEST_F(FormatTest, UnderstandsBinaryOperators) { 5494 verifyFormat("COMPARE(a, ==, b);"); 5495 } 5496 5497 TEST_F(FormatTest, UnderstandsPointersToMembers) { 5498 verifyFormat("int A::*x;"); 5499 verifyFormat("int (S::*func)(void *);"); 5500 verifyFormat("void f() { int (S::*func)(void *); }"); 5501 verifyFormat("typedef bool *(Class::*Member)() const;"); 5502 verifyFormat("void f() {\n" 5503 " (a->*f)();\n" 5504 " a->*x;\n" 5505 " (a.*f)();\n" 5506 " ((*a).*f)();\n" 5507 " a.*x;\n" 5508 "}"); 5509 verifyFormat("void f() {\n" 5510 " (a->*aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)(\n" 5511 " aaaa, bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb);\n" 5512 "}"); 5513 verifyFormat( 5514 "(aaaaaaaaaa->*bbbbbbb)(\n" 5515 " aaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaa));"); 5516 FormatStyle Style = getLLVMStyle(); 5517 Style.PointerAlignment = FormatStyle::PAS_Left; 5518 verifyFormat("typedef bool* (Class::*Member)() const;", Style); 5519 } 5520 5521 TEST_F(FormatTest, UnderstandsUnaryOperators) { 5522 verifyFormat("int a = -2;"); 5523 verifyFormat("f(-1, -2, -3);"); 5524 verifyFormat("a[-1] = 5;"); 5525 verifyFormat("int a = 5 + -2;"); 5526 verifyFormat("if (i == -1) {\n}"); 5527 verifyFormat("if (i != -1) {\n}"); 5528 verifyFormat("if (i > -1) {\n}"); 5529 verifyFormat("if (i < -1) {\n}"); 5530 verifyFormat("++(a->f());"); 5531 verifyFormat("--(a->f());"); 5532 verifyFormat("(a->f())++;"); 5533 verifyFormat("a[42]++;"); 5534 verifyFormat("if (!(a->f())) {\n}"); 5535 5536 verifyFormat("a-- > b;"); 5537 verifyFormat("b ? -a : c;"); 5538 verifyFormat("n * sizeof char16;"); 5539 verifyFormat("n * alignof char16;", getGoogleStyle()); 5540 verifyFormat("sizeof(char);"); 5541 verifyFormat("alignof(char);", getGoogleStyle()); 5542 5543 verifyFormat("return -1;"); 5544 verifyFormat("switch (a) {\n" 5545 "case -1:\n" 5546 " break;\n" 5547 "}"); 5548 verifyFormat("#define X -1"); 5549 verifyFormat("#define X -kConstant"); 5550 5551 verifyFormat("const NSPoint kBrowserFrameViewPatternOffset = {-5, +3};"); 5552 verifyFormat("const NSPoint kBrowserFrameViewPatternOffset = {+5, -3};"); 5553 5554 verifyFormat("int a = /* confusing comment */ -1;"); 5555 // FIXME: The space after 'i' is wrong, but hopefully, this is a rare case. 5556 verifyFormat("int a = i /* confusing comment */++;"); 5557 } 5558 5559 TEST_F(FormatTest, DoesNotIndentRelativeToUnaryOperators) { 5560 verifyFormat("if (!aaaaaaaaaa( // break\n" 5561 " aaaaa)) {\n" 5562 "}"); 5563 verifyFormat("aaaaaaaaaa(!aaaaaaaaaa( // break\n" 5564 " aaaaa));"); 5565 verifyFormat("*aaa = aaaaaaa( // break\n" 5566 " bbbbbb);"); 5567 } 5568 5569 TEST_F(FormatTest, UnderstandsOverloadedOperators) { 5570 verifyFormat("bool operator<();"); 5571 verifyFormat("bool operator>();"); 5572 verifyFormat("bool operator=();"); 5573 verifyFormat("bool operator==();"); 5574 verifyFormat("bool operator!=();"); 5575 verifyFormat("int operator+();"); 5576 verifyFormat("int operator++();"); 5577 verifyFormat("bool operator,();"); 5578 verifyFormat("bool operator();"); 5579 verifyFormat("bool operator()();"); 5580 verifyFormat("bool operator[]();"); 5581 verifyFormat("operator bool();"); 5582 verifyFormat("operator int();"); 5583 verifyFormat("operator void *();"); 5584 verifyFormat("operator SomeType<int>();"); 5585 verifyFormat("operator SomeType<int, int>();"); 5586 verifyFormat("operator SomeType<SomeType<int>>();"); 5587 verifyFormat("void *operator new(std::size_t size);"); 5588 verifyFormat("void *operator new[](std::size_t size);"); 5589 verifyFormat("void operator delete(void *ptr);"); 5590 verifyFormat("void operator delete[](void *ptr);"); 5591 verifyFormat("template <typename AAAAAAA, typename BBBBBBB>\n" 5592 "AAAAAAA operator/(const AAAAAAA &a, BBBBBBB &b);"); 5593 verifyFormat("aaaaaaaaaaaaaaaaaaaaaa operator,(\n" 5594 " aaaaaaaaaaaaaaaaaaaaa &aaaaaaaaaaaaaaaaaaaaaaaaaa) const;"); 5595 5596 verifyFormat( 5597 "ostream &operator<<(ostream &OutputStream,\n" 5598 " SomeReallyLongType WithSomeReallyLongValue);"); 5599 verifyFormat("bool operator<(const aaaaaaaaaaaaaaaaaaaaa &left,\n" 5600 " const aaaaaaaaaaaaaaaaaaaaa &right) {\n" 5601 " return left.group < right.group;\n" 5602 "}"); 5603 verifyFormat("SomeType &operator=(const SomeType &S);"); 5604 verifyFormat("f.template operator()<int>();"); 5605 5606 verifyGoogleFormat("operator void*();"); 5607 verifyGoogleFormat("operator SomeType<SomeType<int>>();"); 5608 verifyGoogleFormat("operator ::A();"); 5609 5610 verifyFormat("using A::operator+;"); 5611 verifyFormat("inline A operator^(const A &lhs, const A &rhs) {}\n" 5612 "int i;"); 5613 } 5614 5615 TEST_F(FormatTest, UnderstandsFunctionRefQualification) { 5616 verifyFormat("Deleted &operator=(const Deleted &) & = default;"); 5617 verifyFormat("Deleted &operator=(const Deleted &) && = delete;"); 5618 verifyFormat("SomeType MemberFunction(const Deleted &) & = delete;"); 5619 verifyFormat("SomeType MemberFunction(const Deleted &) && = delete;"); 5620 verifyFormat("Deleted &operator=(const Deleted &) &;"); 5621 verifyFormat("Deleted &operator=(const Deleted &) &&;"); 5622 verifyFormat("SomeType MemberFunction(const Deleted &) &;"); 5623 verifyFormat("SomeType MemberFunction(const Deleted &) &&;"); 5624 verifyFormat("SomeType MemberFunction(const Deleted &) && {}"); 5625 verifyFormat("SomeType MemberFunction(const Deleted &) && final {}"); 5626 verifyFormat("SomeType MemberFunction(const Deleted &) && override {}"); 5627 5628 FormatStyle AlignLeft = getLLVMStyle(); 5629 AlignLeft.PointerAlignment = FormatStyle::PAS_Left; 5630 verifyFormat("Deleted& operator=(const Deleted&) & = default;", AlignLeft); 5631 verifyFormat("SomeType MemberFunction(const Deleted&) & = delete;", 5632 AlignLeft); 5633 verifyFormat("Deleted& operator=(const Deleted&) &;", AlignLeft); 5634 verifyFormat("SomeType MemberFunction(const Deleted&) &;", AlignLeft); 5635 verifyFormat("auto Function(T t) & -> void {}", AlignLeft); 5636 verifyFormat("auto Function(T... t) & -> void {}", AlignLeft); 5637 verifyFormat("auto Function(T) & -> void {}", AlignLeft); 5638 verifyFormat("auto Function(T) & -> void;", AlignLeft); 5639 5640 FormatStyle Spaces = getLLVMStyle(); 5641 Spaces.SpacesInCStyleCastParentheses = true; 5642 verifyFormat("Deleted &operator=(const Deleted &) & = default;", Spaces); 5643 verifyFormat("SomeType MemberFunction(const Deleted &) & = delete;", Spaces); 5644 verifyFormat("Deleted &operator=(const Deleted &) &;", Spaces); 5645 verifyFormat("SomeType MemberFunction(const Deleted &) &;", Spaces); 5646 5647 Spaces.SpacesInCStyleCastParentheses = false; 5648 Spaces.SpacesInParentheses = true; 5649 verifyFormat("Deleted &operator=( const Deleted & ) & = default;", Spaces); 5650 verifyFormat("SomeType MemberFunction( const Deleted & ) & = delete;", Spaces); 5651 verifyFormat("Deleted &operator=( const Deleted & ) &;", Spaces); 5652 verifyFormat("SomeType MemberFunction( const Deleted & ) &;", Spaces); 5653 } 5654 5655 TEST_F(FormatTest, UnderstandsNewAndDelete) { 5656 verifyFormat("void f() {\n" 5657 " A *a = new A;\n" 5658 " A *a = new (placement) A;\n" 5659 " delete a;\n" 5660 " delete (A *)a;\n" 5661 "}"); 5662 verifyFormat("new (aaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaa))\n" 5663 " typename aaaaaaaaaaaaaaaaaaaaaaaa();"); 5664 verifyFormat("auto aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 5665 " new (aaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaa))\n" 5666 " typename aaaaaaaaaaaaaaaaaaaaaaaa();"); 5667 verifyFormat("delete[] h->p;"); 5668 } 5669 5670 TEST_F(FormatTest, UnderstandsUsesOfStarAndAmp) { 5671 verifyFormat("int *f(int *a) {}"); 5672 verifyFormat("int main(int argc, char **argv) {}"); 5673 verifyFormat("Test::Test(int b) : a(b * b) {}"); 5674 verifyIndependentOfContext("f(a, *a);"); 5675 verifyFormat("void g() { f(*a); }"); 5676 verifyIndependentOfContext("int a = b * 10;"); 5677 verifyIndependentOfContext("int a = 10 * b;"); 5678 verifyIndependentOfContext("int a = b * c;"); 5679 verifyIndependentOfContext("int a += b * c;"); 5680 verifyIndependentOfContext("int a -= b * c;"); 5681 verifyIndependentOfContext("int a *= b * c;"); 5682 verifyIndependentOfContext("int a /= b * c;"); 5683 verifyIndependentOfContext("int a = *b;"); 5684 verifyIndependentOfContext("int a = *b * c;"); 5685 verifyIndependentOfContext("int a = b * *c;"); 5686 verifyIndependentOfContext("int a = b * (10);"); 5687 verifyIndependentOfContext("S << b * (10);"); 5688 verifyIndependentOfContext("return 10 * b;"); 5689 verifyIndependentOfContext("return *b * *c;"); 5690 verifyIndependentOfContext("return a & ~b;"); 5691 verifyIndependentOfContext("f(b ? *c : *d);"); 5692 verifyIndependentOfContext("int a = b ? *c : *d;"); 5693 verifyIndependentOfContext("*b = a;"); 5694 verifyIndependentOfContext("a * ~b;"); 5695 verifyIndependentOfContext("a * !b;"); 5696 verifyIndependentOfContext("a * +b;"); 5697 verifyIndependentOfContext("a * -b;"); 5698 verifyIndependentOfContext("a * ++b;"); 5699 verifyIndependentOfContext("a * --b;"); 5700 verifyIndependentOfContext("a[4] * b;"); 5701 verifyIndependentOfContext("a[a * a] = 1;"); 5702 verifyIndependentOfContext("f() * b;"); 5703 verifyIndependentOfContext("a * [self dostuff];"); 5704 verifyIndependentOfContext("int x = a * (a + b);"); 5705 verifyIndependentOfContext("(a *)(a + b);"); 5706 verifyIndependentOfContext("*(int *)(p & ~3UL) = 0;"); 5707 verifyIndependentOfContext("int *pa = (int *)&a;"); 5708 verifyIndependentOfContext("return sizeof(int **);"); 5709 verifyIndependentOfContext("return sizeof(int ******);"); 5710 verifyIndependentOfContext("return (int **&)a;"); 5711 verifyIndependentOfContext("f((*PointerToArray)[10]);"); 5712 verifyFormat("void f(Type (*parameter)[10]) {}"); 5713 verifyFormat("void f(Type (¶meter)[10]) {}"); 5714 verifyGoogleFormat("return sizeof(int**);"); 5715 verifyIndependentOfContext("Type **A = static_cast<Type **>(P);"); 5716 verifyGoogleFormat("Type** A = static_cast<Type**>(P);"); 5717 verifyFormat("auto a = [](int **&, int ***) {};"); 5718 verifyFormat("auto PointerBinding = [](const char *S) {};"); 5719 verifyFormat("typedef typeof(int(int, int)) *MyFunc;"); 5720 verifyFormat("[](const decltype(*a) &value) {}"); 5721 verifyFormat("decltype(a * b) F();"); 5722 verifyFormat("#define MACRO() [](A *a) { return 1; }"); 5723 verifyFormat("Constructor() : member([](A *a, B *b) {}) {}"); 5724 verifyIndependentOfContext("typedef void (*f)(int *a);"); 5725 verifyIndependentOfContext("int i{a * b};"); 5726 verifyIndependentOfContext("aaa && aaa->f();"); 5727 verifyIndependentOfContext("int x = ~*p;"); 5728 verifyFormat("Constructor() : a(a), area(width * height) {}"); 5729 verifyFormat("Constructor() : a(a), area(a, width * height) {}"); 5730 verifyGoogleFormat("MACRO Constructor(const int& i) : a(a), b(b) {}"); 5731 verifyFormat("void f() { f(a, c * d); }"); 5732 verifyFormat("void f() { f(new a(), c * d); }"); 5733 5734 verifyIndependentOfContext("InvalidRegions[*R] = 0;"); 5735 5736 verifyIndependentOfContext("A<int *> a;"); 5737 verifyIndependentOfContext("A<int **> a;"); 5738 verifyIndependentOfContext("A<int *, int *> a;"); 5739 verifyIndependentOfContext("A<int *[]> a;"); 5740 verifyIndependentOfContext( 5741 "const char *const p = reinterpret_cast<const char *const>(q);"); 5742 verifyIndependentOfContext("A<int **, int **> a;"); 5743 verifyIndependentOfContext("void f(int *a = d * e, int *b = c * d);"); 5744 verifyFormat("for (char **a = b; *a; ++a) {\n}"); 5745 verifyFormat("for (; a && b;) {\n}"); 5746 verifyFormat("bool foo = true && [] { return false; }();"); 5747 5748 verifyFormat( 5749 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5750 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa, *aaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 5751 5752 verifyGoogleFormat("**outparam = 1;"); 5753 verifyGoogleFormat("*outparam = a * b;"); 5754 verifyGoogleFormat("int main(int argc, char** argv) {}"); 5755 verifyGoogleFormat("A<int*> a;"); 5756 verifyGoogleFormat("A<int**> a;"); 5757 verifyGoogleFormat("A<int*, int*> a;"); 5758 verifyGoogleFormat("A<int**, int**> a;"); 5759 verifyGoogleFormat("f(b ? *c : *d);"); 5760 verifyGoogleFormat("int a = b ? *c : *d;"); 5761 verifyGoogleFormat("Type* t = **x;"); 5762 verifyGoogleFormat("Type* t = *++*x;"); 5763 verifyGoogleFormat("*++*x;"); 5764 verifyGoogleFormat("Type* t = const_cast<T*>(&*x);"); 5765 verifyGoogleFormat("Type* t = x++ * y;"); 5766 verifyGoogleFormat( 5767 "const char* const p = reinterpret_cast<const char* const>(q);"); 5768 verifyGoogleFormat("void f(int i = 0, SomeType** temps = NULL);"); 5769 verifyGoogleFormat("void f(Bar* a = nullptr, Bar* b);"); 5770 verifyGoogleFormat("template <typename T>\n" 5771 "void f(int i = 0, SomeType** temps = NULL);"); 5772 5773 FormatStyle Left = getLLVMStyle(); 5774 Left.PointerAlignment = FormatStyle::PAS_Left; 5775 verifyFormat("x = *a(x) = *a(y);", Left); 5776 verifyFormat("for (;; * = b) {\n}", Left); 5777 verifyFormat("return *this += 1;", Left); 5778 5779 verifyIndependentOfContext("a = *(x + y);"); 5780 verifyIndependentOfContext("a = &(x + y);"); 5781 verifyIndependentOfContext("*(x + y).call();"); 5782 verifyIndependentOfContext("&(x + y)->call();"); 5783 verifyFormat("void f() { &(*I).first; }"); 5784 5785 verifyIndependentOfContext("f(b * /* confusing comment */ ++c);"); 5786 verifyFormat( 5787 "int *MyValues = {\n" 5788 " *A, // Operator detection might be confused by the '{'\n" 5789 " *BB // Operator detection might be confused by previous comment\n" 5790 "};"); 5791 5792 verifyIndependentOfContext("if (int *a = &b)"); 5793 verifyIndependentOfContext("if (int &a = *b)"); 5794 verifyIndependentOfContext("if (a & b[i])"); 5795 verifyIndependentOfContext("if (a::b::c::d & b[i])"); 5796 verifyIndependentOfContext("if (*b[i])"); 5797 verifyIndependentOfContext("if (int *a = (&b))"); 5798 verifyIndependentOfContext("while (int *a = &b)"); 5799 verifyIndependentOfContext("size = sizeof *a;"); 5800 verifyIndependentOfContext("if (a && (b = c))"); 5801 verifyFormat("void f() {\n" 5802 " for (const int &v : Values) {\n" 5803 " }\n" 5804 "}"); 5805 verifyFormat("for (int i = a * a; i < 10; ++i) {\n}"); 5806 verifyFormat("for (int i = 0; i < a * a; ++i) {\n}"); 5807 verifyGoogleFormat("for (int i = 0; i * 2 < z; i *= 2) {\n}"); 5808 5809 verifyFormat("#define A (!a * b)"); 5810 verifyFormat("#define MACRO \\\n" 5811 " int *i = a * b; \\\n" 5812 " void f(a *b);", 5813 getLLVMStyleWithColumns(19)); 5814 5815 verifyIndependentOfContext("A = new SomeType *[Length];"); 5816 verifyIndependentOfContext("A = new SomeType *[Length]();"); 5817 verifyIndependentOfContext("T **t = new T *;"); 5818 verifyIndependentOfContext("T **t = new T *();"); 5819 verifyGoogleFormat("A = new SomeType*[Length]();"); 5820 verifyGoogleFormat("A = new SomeType*[Length];"); 5821 verifyGoogleFormat("T** t = new T*;"); 5822 verifyGoogleFormat("T** t = new T*();"); 5823 5824 FormatStyle PointerLeft = getLLVMStyle(); 5825 PointerLeft.PointerAlignment = FormatStyle::PAS_Left; 5826 verifyFormat("delete *x;", PointerLeft); 5827 verifyFormat("STATIC_ASSERT((a & b) == 0);"); 5828 verifyFormat("STATIC_ASSERT(0 == (a & b));"); 5829 verifyFormat("template <bool a, bool b> " 5830 "typename t::if<x && y>::type f() {}"); 5831 verifyFormat("template <int *y> f() {}"); 5832 verifyFormat("vector<int *> v;"); 5833 verifyFormat("vector<int *const> v;"); 5834 verifyFormat("vector<int *const **const *> v;"); 5835 verifyFormat("vector<int *volatile> v;"); 5836 verifyFormat("vector<a * b> v;"); 5837 verifyFormat("foo<b && false>();"); 5838 verifyFormat("foo<b & 1>();"); 5839 verifyFormat("decltype(*::std::declval<const T &>()) void F();"); 5840 verifyFormat( 5841 "template <class T, class = typename std::enable_if<\n" 5842 " std::is_integral<T>::value &&\n" 5843 " (sizeof(T) > 1 || sizeof(T) < 8)>::type>\n" 5844 "void F();", 5845 getLLVMStyleWithColumns(76)); 5846 verifyFormat( 5847 "template <class T,\n" 5848 " class = typename ::std::enable_if<\n" 5849 " ::std::is_array<T>{} && ::std::is_array<T>{}>::type>\n" 5850 "void F();", 5851 getGoogleStyleWithColumns(68)); 5852 5853 verifyIndependentOfContext("MACRO(int *i);"); 5854 verifyIndependentOfContext("MACRO(auto *a);"); 5855 verifyIndependentOfContext("MACRO(const A *a);"); 5856 verifyIndependentOfContext("MACRO('0' <= c && c <= '9');"); 5857 // FIXME: Is there a way to make this work? 5858 // verifyIndependentOfContext("MACRO(A *a);"); 5859 5860 verifyFormat("DatumHandle const *operator->() const { return input_; }"); 5861 verifyFormat("return options != nullptr && operator==(*options);"); 5862 5863 EXPECT_EQ("#define OP(x) \\\n" 5864 " ostream &operator<<(ostream &s, const A &a) { \\\n" 5865 " return s << a.DebugString(); \\\n" 5866 " }", 5867 format("#define OP(x) \\\n" 5868 " ostream &operator<<(ostream &s, const A &a) { \\\n" 5869 " return s << a.DebugString(); \\\n" 5870 " }", 5871 getLLVMStyleWithColumns(50))); 5872 5873 // FIXME: We cannot handle this case yet; we might be able to figure out that 5874 // foo<x> d > v; doesn't make sense. 5875 verifyFormat("foo<a<b && c> d> v;"); 5876 5877 FormatStyle PointerMiddle = getLLVMStyle(); 5878 PointerMiddle.PointerAlignment = FormatStyle::PAS_Middle; 5879 verifyFormat("delete *x;", PointerMiddle); 5880 verifyFormat("int * x;", PointerMiddle); 5881 verifyFormat("template <int * y> f() {}", PointerMiddle); 5882 verifyFormat("int * f(int * a) {}", PointerMiddle); 5883 verifyFormat("int main(int argc, char ** argv) {}", PointerMiddle); 5884 verifyFormat("Test::Test(int b) : a(b * b) {}", PointerMiddle); 5885 verifyFormat("A<int *> a;", PointerMiddle); 5886 verifyFormat("A<int **> a;", PointerMiddle); 5887 verifyFormat("A<int *, int *> a;", PointerMiddle); 5888 verifyFormat("A<int * []> a;", PointerMiddle); 5889 verifyFormat("A = new SomeType *[Length]();", PointerMiddle); 5890 verifyFormat("A = new SomeType *[Length];", PointerMiddle); 5891 verifyFormat("T ** t = new T *;", PointerMiddle); 5892 5893 // Member function reference qualifiers aren't binary operators. 5894 verifyFormat("string // break\n" 5895 "operator()() & {}"); 5896 verifyFormat("string // break\n" 5897 "operator()() && {}"); 5898 verifyGoogleFormat("template <typename T>\n" 5899 "auto x() & -> int {}"); 5900 } 5901 5902 TEST_F(FormatTest, UnderstandsAttributes) { 5903 verifyFormat("SomeType s __attribute__((unused)) (InitValue);"); 5904 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa __attribute__((unused))\n" 5905 "aaaaaaaaaaaaaaaaaaaaaaa(int i);"); 5906 FormatStyle AfterType = getLLVMStyle(); 5907 AfterType.AlwaysBreakAfterReturnType = FormatStyle::RTBS_AllDefinitions; 5908 verifyFormat("__attribute__((nodebug)) void\n" 5909 "foo() {}\n", 5910 AfterType); 5911 } 5912 5913 TEST_F(FormatTest, UnderstandsEllipsis) { 5914 verifyFormat("int printf(const char *fmt, ...);"); 5915 verifyFormat("template <class... Ts> void Foo(Ts... ts) { Foo(ts...); }"); 5916 verifyFormat("template <class... Ts> void Foo(Ts *... ts) {}"); 5917 5918 FormatStyle PointersLeft = getLLVMStyle(); 5919 PointersLeft.PointerAlignment = FormatStyle::PAS_Left; 5920 verifyFormat("template <class... Ts> void Foo(Ts*... ts) {}", PointersLeft); 5921 } 5922 5923 TEST_F(FormatTest, AdaptivelyFormatsPointersAndReferences) { 5924 EXPECT_EQ("int *a;\n" 5925 "int *a;\n" 5926 "int *a;", 5927 format("int *a;\n" 5928 "int* a;\n" 5929 "int *a;", 5930 getGoogleStyle())); 5931 EXPECT_EQ("int* a;\n" 5932 "int* a;\n" 5933 "int* a;", 5934 format("int* a;\n" 5935 "int* a;\n" 5936 "int *a;", 5937 getGoogleStyle())); 5938 EXPECT_EQ("int *a;\n" 5939 "int *a;\n" 5940 "int *a;", 5941 format("int *a;\n" 5942 "int * a;\n" 5943 "int * a;", 5944 getGoogleStyle())); 5945 EXPECT_EQ("auto x = [] {\n" 5946 " int *a;\n" 5947 " int *a;\n" 5948 " int *a;\n" 5949 "};", 5950 format("auto x=[]{int *a;\n" 5951 "int * a;\n" 5952 "int * a;};", 5953 getGoogleStyle())); 5954 } 5955 5956 TEST_F(FormatTest, UnderstandsRvalueReferences) { 5957 verifyFormat("int f(int &&a) {}"); 5958 verifyFormat("int f(int a, char &&b) {}"); 5959 verifyFormat("void f() { int &&a = b; }"); 5960 verifyGoogleFormat("int f(int a, char&& b) {}"); 5961 verifyGoogleFormat("void f() { int&& a = b; }"); 5962 5963 verifyIndependentOfContext("A<int &&> a;"); 5964 verifyIndependentOfContext("A<int &&, int &&> a;"); 5965 verifyGoogleFormat("A<int&&> a;"); 5966 verifyGoogleFormat("A<int&&, int&&> a;"); 5967 5968 // Not rvalue references: 5969 verifyFormat("template <bool B, bool C> class A {\n" 5970 " static_assert(B && C, \"Something is wrong\");\n" 5971 "};"); 5972 verifyGoogleFormat("#define IF(a, b, c) if (a && (b == c))"); 5973 verifyGoogleFormat("#define WHILE(a, b, c) while (a && (b == c))"); 5974 verifyFormat("#define A(a, b) (a && b)"); 5975 } 5976 5977 TEST_F(FormatTest, FormatsBinaryOperatorsPrecedingEquals) { 5978 verifyFormat("void f() {\n" 5979 " x[aaaaaaaaa -\n" 5980 " b] = 23;\n" 5981 "}", 5982 getLLVMStyleWithColumns(15)); 5983 } 5984 5985 TEST_F(FormatTest, FormatsCasts) { 5986 verifyFormat("Type *A = static_cast<Type *>(P);"); 5987 verifyFormat("Type *A = (Type *)P;"); 5988 verifyFormat("Type *A = (vector<Type *, int *>)P;"); 5989 verifyFormat("int a = (int)(2.0f);"); 5990 verifyFormat("int a = (int)2.0f;"); 5991 verifyFormat("x[(int32)y];"); 5992 verifyFormat("x = (int32)y;"); 5993 verifyFormat("#define AA(X) sizeof(((X *)NULL)->a)"); 5994 verifyFormat("int a = (int)*b;"); 5995 verifyFormat("int a = (int)2.0f;"); 5996 verifyFormat("int a = (int)~0;"); 5997 verifyFormat("int a = (int)++a;"); 5998 verifyFormat("int a = (int)sizeof(int);"); 5999 verifyFormat("int a = (int)+2;"); 6000 verifyFormat("my_int a = (my_int)2.0f;"); 6001 verifyFormat("my_int a = (my_int)sizeof(int);"); 6002 verifyFormat("return (my_int)aaa;"); 6003 verifyFormat("#define x ((int)-1)"); 6004 verifyFormat("#define LENGTH(x, y) (x) - (y) + 1"); 6005 verifyFormat("#define p(q) ((int *)&q)"); 6006 verifyFormat("fn(a)(b) + 1;"); 6007 6008 verifyFormat("void f() { my_int a = (my_int)*b; }"); 6009 verifyFormat("void f() { return P ? (my_int)*P : (my_int)0; }"); 6010 verifyFormat("my_int a = (my_int)~0;"); 6011 verifyFormat("my_int a = (my_int)++a;"); 6012 verifyFormat("my_int a = (my_int)-2;"); 6013 verifyFormat("my_int a = (my_int)1;"); 6014 verifyFormat("my_int a = (my_int *)1;"); 6015 verifyFormat("my_int a = (const my_int)-1;"); 6016 verifyFormat("my_int a = (const my_int *)-1;"); 6017 verifyFormat("my_int a = (my_int)(my_int)-1;"); 6018 verifyFormat("my_int a = (ns::my_int)-2;"); 6019 verifyFormat("case (my_int)ONE:"); 6020 verifyFormat("auto x = (X)this;"); 6021 6022 // FIXME: single value wrapped with paren will be treated as cast. 6023 verifyFormat("void f(int i = (kValue)*kMask) {}"); 6024 6025 verifyFormat("{ (void)F; }"); 6026 6027 // Don't break after a cast's 6028 verifyFormat("int aaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 6029 " (aaaaaaaaaaaaaaaaaaaaaaaaaa *)(aaaaaaaaaaaaaaaaaaaaaa +\n" 6030 " bbbbbbbbbbbbbbbbbbbbbb);"); 6031 6032 // These are not casts. 6033 verifyFormat("void f(int *) {}"); 6034 verifyFormat("f(foo)->b;"); 6035 verifyFormat("f(foo).b;"); 6036 verifyFormat("f(foo)(b);"); 6037 verifyFormat("f(foo)[b];"); 6038 verifyFormat("[](foo) { return 4; }(bar);"); 6039 verifyFormat("(*funptr)(foo)[4];"); 6040 verifyFormat("funptrs[4](foo)[4];"); 6041 verifyFormat("void f(int *);"); 6042 verifyFormat("void f(int *) = 0;"); 6043 verifyFormat("void f(SmallVector<int>) {}"); 6044 verifyFormat("void f(SmallVector<int>);"); 6045 verifyFormat("void f(SmallVector<int>) = 0;"); 6046 verifyFormat("void f(int i = (kA * kB) & kMask) {}"); 6047 verifyFormat("int a = sizeof(int) * b;"); 6048 verifyFormat("int a = alignof(int) * b;", getGoogleStyle()); 6049 verifyFormat("template <> void f<int>(int i) SOME_ANNOTATION;"); 6050 verifyFormat("f(\"%\" SOME_MACRO(ll) \"d\");"); 6051 verifyFormat("aaaaa &operator=(const aaaaa &) LLVM_DELETED_FUNCTION;"); 6052 6053 // These are not casts, but at some point were confused with casts. 6054 verifyFormat("virtual void foo(int *) override;"); 6055 verifyFormat("virtual void foo(char &) const;"); 6056 verifyFormat("virtual void foo(int *a, char *) const;"); 6057 verifyFormat("int a = sizeof(int *) + b;"); 6058 verifyFormat("int a = alignof(int *) + b;", getGoogleStyle()); 6059 verifyFormat("bool b = f(g<int>) && c;"); 6060 verifyFormat("typedef void (*f)(int i) func;"); 6061 6062 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *foo = (aaaaaaaaaaaaaaaaa *)\n" 6063 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;"); 6064 // FIXME: The indentation here is not ideal. 6065 verifyFormat( 6066 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 6067 " [bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb] = (*cccccccccccccccc)\n" 6068 " [dddddddddddddddddddddddddddddddddddddddddddddddddddddddd];"); 6069 } 6070 6071 TEST_F(FormatTest, FormatsFunctionTypes) { 6072 verifyFormat("A<bool()> a;"); 6073 verifyFormat("A<SomeType()> a;"); 6074 verifyFormat("A<void (*)(int, std::string)> a;"); 6075 verifyFormat("A<void *(int)>;"); 6076 verifyFormat("void *(*a)(int *, SomeType *);"); 6077 verifyFormat("int (*func)(void *);"); 6078 verifyFormat("void f() { int (*func)(void *); }"); 6079 verifyFormat("template <class CallbackClass>\n" 6080 "using MyCallback = void (CallbackClass::*)(SomeObject *Data);"); 6081 6082 verifyGoogleFormat("A<void*(int*, SomeType*)>;"); 6083 verifyGoogleFormat("void* (*a)(int);"); 6084 verifyGoogleFormat( 6085 "template <class CallbackClass>\n" 6086 "using MyCallback = void (CallbackClass::*)(SomeObject* Data);"); 6087 6088 // Other constructs can look somewhat like function types: 6089 verifyFormat("A<sizeof(*x)> a;"); 6090 verifyFormat("#define DEREF_AND_CALL_F(x) f(*x)"); 6091 verifyFormat("some_var = function(*some_pointer_var)[0];"); 6092 verifyFormat("void f() { function(*some_pointer_var)[0] = 10; }"); 6093 verifyFormat("int x = f(&h)();"); 6094 } 6095 6096 TEST_F(FormatTest, FormatsPointersToArrayTypes) { 6097 verifyFormat("A (*foo_)[6];"); 6098 verifyFormat("vector<int> (*foo_)[6];"); 6099 } 6100 6101 TEST_F(FormatTest, BreaksLongVariableDeclarations) { 6102 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n" 6103 " LoooooooooooooooooooooooooooooooooooooooongVariable;"); 6104 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType const\n" 6105 " LoooooooooooooooooooooooooooooooooooooooongVariable;"); 6106 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n" 6107 " *LoooooooooooooooooooooooooooooooooooooooongVariable;"); 6108 6109 // Different ways of ()-initializiation. 6110 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n" 6111 " LoooooooooooooooooooooooooooooooooooooooongVariable(1);"); 6112 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n" 6113 " LoooooooooooooooooooooooooooooooooooooooongVariable(a);"); 6114 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n" 6115 " LoooooooooooooooooooooooooooooooooooooooongVariable({});"); 6116 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n" 6117 " LoooooooooooooooooooooooooooooooooooooongVariable([A a]);"); 6118 } 6119 6120 TEST_F(FormatTest, BreaksLongDeclarations) { 6121 verifyFormat("typedef LoooooooooooooooooooooooooooooooooooooooongType\n" 6122 " AnotherNameForTheLongType;"); 6123 verifyFormat("typedef LongTemplateType<aaaaaaaaaaaaaaaaaaa()>\n" 6124 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 6125 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType\n" 6126 "LoooooooooooooooooooooooooooooooongFunctionDeclaration();"); 6127 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType *\n" 6128 "LoooooooooooooooooooooooooooooooongFunctionDeclaration();"); 6129 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType\n" 6130 "LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}"); 6131 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType MACRO\n" 6132 "LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}"); 6133 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType const\n" 6134 "LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}"); 6135 verifyFormat("decltype(LoooooooooooooooooooooooooooooooooooooooongName)\n" 6136 "LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}"); 6137 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType\n" 6138 "LooooooooooooooooooooooooooongFunctionDeclaration(T... t);"); 6139 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType\n" 6140 "LooooooooooooooooooooooooooongFunctionDeclaration(T /*t*/) {}"); 6141 FormatStyle Indented = getLLVMStyle(); 6142 Indented.IndentWrappedFunctionNames = true; 6143 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType\n" 6144 " LoooooooooooooooooooooooooooooooongFunctionDeclaration();", 6145 Indented); 6146 verifyFormat( 6147 "LoooooooooooooooooooooooooooooooooooooooongReturnType\n" 6148 " LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}", 6149 Indented); 6150 verifyFormat( 6151 "LoooooooooooooooooooooooooooooooooooooooongReturnType const\n" 6152 " LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}", 6153 Indented); 6154 verifyFormat( 6155 "decltype(LoooooooooooooooooooooooooooooooooooooooongName)\n" 6156 " LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}", 6157 Indented); 6158 6159 // FIXME: Without the comment, this breaks after "(". 6160 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType // break\n" 6161 " (*LoooooooooooooooooooooooooooongFunctionTypeVarialbe)();", 6162 getGoogleStyle()); 6163 6164 verifyFormat("int *someFunction(int LoooooooooooooooooooongParam1,\n" 6165 " int LoooooooooooooooooooongParam2) {}"); 6166 verifyFormat( 6167 "TypeSpecDecl *TypeSpecDecl::Create(ASTContext &C, DeclContext *DC,\n" 6168 " SourceLocation L, IdentifierIn *II,\n" 6169 " Type *T) {}"); 6170 verifyFormat("ReallyLongReturnType<TemplateParam1, TemplateParam2>\n" 6171 "ReallyReaaallyLongFunctionName(\n" 6172 " const std::string &SomeParameter,\n" 6173 " const SomeType<string, SomeOtherTemplateParameter>\n" 6174 " &ReallyReallyLongParameterName,\n" 6175 " const SomeType<string, SomeOtherTemplateParameter>\n" 6176 " &AnotherLongParameterName) {}"); 6177 verifyFormat("template <typename A>\n" 6178 "SomeLoooooooooooooooooooooongType<\n" 6179 " typename some_namespace::SomeOtherType<A>::Type>\n" 6180 "Function() {}"); 6181 6182 verifyGoogleFormat( 6183 "aaaaaaaaaaaaaaaa::aaaaaaaaaaaaaaaa<aaaaaaaaaaaaa, aaaaaaaaaaaa>\n" 6184 " aaaaaaaaaaaaaaaaaaaaaaa;"); 6185 verifyGoogleFormat( 6186 "TypeSpecDecl* TypeSpecDecl::Create(ASTContext& C, DeclContext* DC,\n" 6187 " SourceLocation L) {}"); 6188 verifyGoogleFormat( 6189 "some_namespace::LongReturnType\n" 6190 "long_namespace::SomeVeryLongClass::SomeVeryLongFunction(\n" 6191 " int first_long_parameter, int second_parameter) {}"); 6192 6193 verifyGoogleFormat("template <typename T>\n" 6194 "aaaaaaaa::aaaaa::aaaaaa<T, aaaaaaaaaaaaaaaaaaaaaaaaa>\n" 6195 "aaaaaaaaaaaaaaaaaaaaaaaa<T>::aaaaaaa() {}"); 6196 verifyGoogleFormat("A<A<A>> aaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 6197 " int aaaaaaaaaaaaaaaaaaaaaaa);"); 6198 6199 verifyFormat("typedef size_t (*aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)(\n" 6200 " const aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 6201 " *aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 6202 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 6203 " vector<aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>\n" 6204 " aaaaaaaaaaaaaaaaaaaaaaaa);"); 6205 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 6206 " vector<aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa<\n" 6207 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>>\n" 6208 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 6209 } 6210 6211 TEST_F(FormatTest, FormatsArrays) { 6212 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaa[aaaaaaaaaaaaaaaaaaaaaaaaa]\n" 6213 " [bbbbbbbbbbbbbbbbbbbbbbbbb] = c;"); 6214 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaa[aaaaaaaaaaa(aaaaaaaaaaaa)]\n" 6215 " [bbbbbbbbbbb(bbbbbbbbbbbb)] = c;"); 6216 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaa &&\n" 6217 " aaaaaaaaaaaaaaaaaaa[aaaaaaaaaaaaa][aaaaaaaaaaaaa]) {\n}"); 6218 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 6219 " [bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb] = ccccccccccc;"); 6220 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 6221 " [a][bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb] = cccccccc;"); 6222 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 6223 " [aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa]\n" 6224 " [bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb] = ccccccccccc;"); 6225 verifyFormat( 6226 "llvm::outs() << \"aaaaaaaaaaaa: \"\n" 6227 " << (*aaaaaaaiaaaaaaa)[aaaaaaaaaaaaaaaaaaaaaaaaa]\n" 6228 " [aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa];"); 6229 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[aaaaaaaaaaaaaaaaa][a]\n" 6230 " .aaaaaaaaaaaaaaaaaaaaaa();"); 6231 6232 verifyGoogleFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa<int>\n" 6233 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[aaaaaaaaaaaa];"); 6234 verifyFormat( 6235 "aaaaaaaaaaa aaaaaaaaaaaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaa->aaaaaaaaa[0]\n" 6236 " .aaaaaaa[0]\n" 6237 " .aaaaaaaaaaaaaaaaaaaaaa();"); 6238 verifyFormat("a[::b::c];"); 6239 6240 verifyNoCrash("a[,Y?)]", getLLVMStyleWithColumns(10)); 6241 6242 FormatStyle NoColumnLimit = getLLVMStyleWithColumns(0); 6243 verifyFormat("aaaaa[bbbbbb].cccccc()", NoColumnLimit); 6244 } 6245 6246 TEST_F(FormatTest, LineStartsWithSpecialCharacter) { 6247 verifyFormat("(a)->b();"); 6248 verifyFormat("--a;"); 6249 } 6250 6251 TEST_F(FormatTest, HandlesIncludeDirectives) { 6252 verifyFormat("#include <string>\n" 6253 "#include <a/b/c.h>\n" 6254 "#include \"a/b/string\"\n" 6255 "#include \"string.h\"\n" 6256 "#include \"string.h\"\n" 6257 "#include <a-a>\n" 6258 "#include < path with space >\n" 6259 "#include_next <test.h>" 6260 "#include \"abc.h\" // this is included for ABC\n" 6261 "#include \"some long include\" // with a comment\n" 6262 "#include \"some very long include paaaaaaaaaaaaaaaaaaaaaaath\"", 6263 getLLVMStyleWithColumns(35)); 6264 EXPECT_EQ("#include \"a.h\"", format("#include \"a.h\"")); 6265 EXPECT_EQ("#include <a>", format("#include<a>")); 6266 6267 verifyFormat("#import <string>"); 6268 verifyFormat("#import <a/b/c.h>"); 6269 verifyFormat("#import \"a/b/string\""); 6270 verifyFormat("#import \"string.h\""); 6271 verifyFormat("#import \"string.h\""); 6272 verifyFormat("#if __has_include(<strstream>)\n" 6273 "#include <strstream>\n" 6274 "#endif"); 6275 6276 verifyFormat("#define MY_IMPORT <a/b>"); 6277 6278 // Protocol buffer definition or missing "#". 6279 verifyFormat("import \"aaaaaaaaaaaaaaaaa/aaaaaaaaaaaaaaa\";", 6280 getLLVMStyleWithColumns(30)); 6281 6282 FormatStyle Style = getLLVMStyle(); 6283 Style.AlwaysBreakBeforeMultilineStrings = true; 6284 Style.ColumnLimit = 0; 6285 verifyFormat("#import \"abc.h\"", Style); 6286 6287 // But 'import' might also be a regular C++ namespace. 6288 verifyFormat("import::SomeFunction(aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 6289 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 6290 } 6291 6292 //===----------------------------------------------------------------------===// 6293 // Error recovery tests. 6294 //===----------------------------------------------------------------------===// 6295 6296 TEST_F(FormatTest, IncompleteParameterLists) { 6297 FormatStyle NoBinPacking = getLLVMStyle(); 6298 NoBinPacking.BinPackParameters = false; 6299 verifyFormat("void aaaaaaaaaaaaaaaaaa(int level,\n" 6300 " double *min_x,\n" 6301 " double *max_x,\n" 6302 " double *min_y,\n" 6303 " double *max_y,\n" 6304 " double *min_z,\n" 6305 " double *max_z, ) {}", 6306 NoBinPacking); 6307 } 6308 6309 TEST_F(FormatTest, IncorrectCodeTrailingStuff) { 6310 verifyFormat("void f() { return; }\n42"); 6311 verifyFormat("void f() {\n" 6312 " if (0)\n" 6313 " return;\n" 6314 "}\n" 6315 "42"); 6316 verifyFormat("void f() { return }\n42"); 6317 verifyFormat("void f() {\n" 6318 " if (0)\n" 6319 " return\n" 6320 "}\n" 6321 "42"); 6322 } 6323 6324 TEST_F(FormatTest, IncorrectCodeMissingSemicolon) { 6325 EXPECT_EQ("void f() { return }", format("void f ( ) { return }")); 6326 EXPECT_EQ("void f() {\n" 6327 " if (a)\n" 6328 " return\n" 6329 "}", 6330 format("void f ( ) { if ( a ) return }")); 6331 EXPECT_EQ("namespace N {\n" 6332 "void f()\n" 6333 "}", 6334 format("namespace N { void f() }")); 6335 EXPECT_EQ("namespace N {\n" 6336 "void f() {}\n" 6337 "void g()\n" 6338 "}", 6339 format("namespace N { void f( ) { } void g( ) }")); 6340 } 6341 6342 TEST_F(FormatTest, IndentationWithinColumnLimitNotPossible) { 6343 verifyFormat("int aaaaaaaa =\n" 6344 " // Overlylongcomment\n" 6345 " b;", 6346 getLLVMStyleWithColumns(20)); 6347 verifyFormat("function(\n" 6348 " ShortArgument,\n" 6349 " LoooooooooooongArgument);\n", 6350 getLLVMStyleWithColumns(20)); 6351 } 6352 6353 TEST_F(FormatTest, IncorrectAccessSpecifier) { 6354 verifyFormat("public:"); 6355 verifyFormat("class A {\n" 6356 "public\n" 6357 " void f() {}\n" 6358 "};"); 6359 verifyFormat("public\n" 6360 "int qwerty;"); 6361 verifyFormat("public\n" 6362 "B {}"); 6363 verifyFormat("public\n" 6364 "{}"); 6365 verifyFormat("public\n" 6366 "B { int x; }"); 6367 } 6368 6369 TEST_F(FormatTest, IncorrectCodeUnbalancedBraces) { 6370 verifyFormat("{"); 6371 verifyFormat("#})"); 6372 verifyNoCrash("(/**/[:!] ?[)."); 6373 } 6374 6375 TEST_F(FormatTest, IncorrectCodeDoNoWhile) { 6376 verifyFormat("do {\n}"); 6377 verifyFormat("do {\n}\n" 6378 "f();"); 6379 verifyFormat("do {\n}\n" 6380 "wheeee(fun);"); 6381 verifyFormat("do {\n" 6382 " f();\n" 6383 "}"); 6384 } 6385 6386 TEST_F(FormatTest, IncorrectCodeMissingParens) { 6387 verifyFormat("if {\n foo;\n foo();\n}"); 6388 verifyFormat("switch {\n foo;\n foo();\n}"); 6389 verifyIncompleteFormat("for {\n foo;\n foo();\n}"); 6390 verifyFormat("while {\n foo;\n foo();\n}"); 6391 verifyFormat("do {\n foo;\n foo();\n} while;"); 6392 } 6393 6394 TEST_F(FormatTest, DoesNotTouchUnwrappedLinesWithErrors) { 6395 verifyIncompleteFormat("namespace {\n" 6396 "class Foo { Foo (\n" 6397 "};\n" 6398 "} // comment"); 6399 } 6400 6401 TEST_F(FormatTest, IncorrectCodeErrorDetection) { 6402 EXPECT_EQ("{\n {}\n", format("{\n{\n}\n")); 6403 EXPECT_EQ("{\n {}\n", format("{\n {\n}\n")); 6404 EXPECT_EQ("{\n {}\n", format("{\n {\n }\n")); 6405 EXPECT_EQ("{\n {}\n}\n}\n", format("{\n {\n }\n }\n}\n")); 6406 6407 EXPECT_EQ("{\n" 6408 " {\n" 6409 " breakme(\n" 6410 " qwe);\n" 6411 " }\n", 6412 format("{\n" 6413 " {\n" 6414 " breakme(qwe);\n" 6415 "}\n", 6416 getLLVMStyleWithColumns(10))); 6417 } 6418 6419 TEST_F(FormatTest, LayoutCallsInsideBraceInitializers) { 6420 verifyFormat("int x = {\n" 6421 " avariable,\n" 6422 " b(alongervariable)};", 6423 getLLVMStyleWithColumns(25)); 6424 } 6425 6426 TEST_F(FormatTest, LayoutBraceInitializersInReturnStatement) { 6427 verifyFormat("return (a)(b){1, 2, 3};"); 6428 } 6429 6430 TEST_F(FormatTest, LayoutCxx11BraceInitializers) { 6431 verifyFormat("vector<int> x{1, 2, 3, 4};"); 6432 verifyFormat("vector<int> x{\n" 6433 " 1, 2, 3, 4,\n" 6434 "};"); 6435 verifyFormat("vector<T> x{{}, {}, {}, {}};"); 6436 verifyFormat("f({1, 2});"); 6437 verifyFormat("auto v = Foo{-1};"); 6438 verifyFormat("f({1, 2}, {{2, 3}, {4, 5}}, c, {d});"); 6439 verifyFormat("Class::Class : member{1, 2, 3} {}"); 6440 verifyFormat("new vector<int>{1, 2, 3};"); 6441 verifyFormat("new int[3]{1, 2, 3};"); 6442 verifyFormat("new int{1};"); 6443 verifyFormat("return {arg1, arg2};"); 6444 verifyFormat("return {arg1, SomeType{parameter}};"); 6445 verifyFormat("int count = set<int>{f(), g(), h()}.size();"); 6446 verifyFormat("new T{arg1, arg2};"); 6447 verifyFormat("f(MyMap[{composite, key}]);"); 6448 verifyFormat("class Class {\n" 6449 " T member = {arg1, arg2};\n" 6450 "};"); 6451 verifyFormat("vector<int> foo = {::SomeGlobalFunction()};"); 6452 verifyFormat("static_assert(std::is_integral<int>{} + 0, \"\");"); 6453 verifyFormat("int a = std::is_integral<int>{} + 0;"); 6454 6455 verifyFormat("int foo(int i) { return fo1{}(i); }"); 6456 verifyFormat("int foo(int i) { return fo1{}(i); }"); 6457 verifyFormat("auto i = decltype(x){};"); 6458 verifyFormat("std::vector<int> v = {1, 0 /* comment */};"); 6459 verifyFormat("Node n{1, Node{1000}, //\n" 6460 " 2};"); 6461 verifyFormat("Aaaa aaaaaaa{\n" 6462 " {\n" 6463 " aaaa,\n" 6464 " },\n" 6465 "};"); 6466 verifyFormat("class C : public D {\n" 6467 " SomeClass SC{2};\n" 6468 "};"); 6469 verifyFormat("class C : public A {\n" 6470 " class D : public B {\n" 6471 " void f() { int i{2}; }\n" 6472 " };\n" 6473 "};"); 6474 verifyFormat("#define A {a, a},"); 6475 6476 // In combination with BinPackArguments = false. 6477 FormatStyle NoBinPacking = getLLVMStyle(); 6478 NoBinPacking.BinPackArguments = false; 6479 verifyFormat("const Aaaaaa aaaaa = {aaaaa,\n" 6480 " bbbbb,\n" 6481 " ccccc,\n" 6482 " ddddd,\n" 6483 " eeeee,\n" 6484 " ffffff,\n" 6485 " ggggg,\n" 6486 " hhhhhh,\n" 6487 " iiiiii,\n" 6488 " jjjjjj,\n" 6489 " kkkkkk};", 6490 NoBinPacking); 6491 verifyFormat("const Aaaaaa aaaaa = {\n" 6492 " aaaaa,\n" 6493 " bbbbb,\n" 6494 " ccccc,\n" 6495 " ddddd,\n" 6496 " eeeee,\n" 6497 " ffffff,\n" 6498 " ggggg,\n" 6499 " hhhhhh,\n" 6500 " iiiiii,\n" 6501 " jjjjjj,\n" 6502 " kkkkkk,\n" 6503 "};", 6504 NoBinPacking); 6505 verifyFormat( 6506 "const Aaaaaa aaaaa = {\n" 6507 " aaaaa, bbbbb, ccccc, ddddd, eeeee, ffffff, ggggg, hhhhhh,\n" 6508 " iiiiii, jjjjjj, kkkkkk, aaaaa, bbbbb, ccccc, ddddd, eeeee,\n" 6509 " ffffff, ggggg, hhhhhh, iiiiii, jjjjjj, kkkkkk,\n" 6510 "};", 6511 NoBinPacking); 6512 6513 // FIXME: The alignment of these trailing comments might be bad. Then again, 6514 // this might be utterly useless in real code. 6515 verifyFormat("Constructor::Constructor()\n" 6516 " : some_value{ //\n" 6517 " aaaaaaa, //\n" 6518 " bbbbbbb} {}"); 6519 6520 // In braced lists, the first comment is always assumed to belong to the 6521 // first element. Thus, it can be moved to the next or previous line as 6522 // appropriate. 6523 EXPECT_EQ("function({// First element:\n" 6524 " 1,\n" 6525 " // Second element:\n" 6526 " 2});", 6527 format("function({\n" 6528 " // First element:\n" 6529 " 1,\n" 6530 " // Second element:\n" 6531 " 2});")); 6532 EXPECT_EQ("std::vector<int> MyNumbers{\n" 6533 " // First element:\n" 6534 " 1,\n" 6535 " // Second element:\n" 6536 " 2};", 6537 format("std::vector<int> MyNumbers{// First element:\n" 6538 " 1,\n" 6539 " // Second element:\n" 6540 " 2};", 6541 getLLVMStyleWithColumns(30))); 6542 // A trailing comma should still lead to an enforced line break. 6543 EXPECT_EQ("vector<int> SomeVector = {\n" 6544 " // aaa\n" 6545 " 1, 2,\n" 6546 "};", 6547 format("vector<int> SomeVector = { // aaa\n" 6548 " 1, 2, };")); 6549 6550 FormatStyle ExtraSpaces = getLLVMStyle(); 6551 ExtraSpaces.Cpp11BracedListStyle = false; 6552 ExtraSpaces.ColumnLimit = 75; 6553 verifyFormat("vector<int> x{ 1, 2, 3, 4 };", ExtraSpaces); 6554 verifyFormat("vector<T> x{ {}, {}, {}, {} };", ExtraSpaces); 6555 verifyFormat("f({ 1, 2 });", ExtraSpaces); 6556 verifyFormat("auto v = Foo{ 1 };", ExtraSpaces); 6557 verifyFormat("f({ 1, 2 }, { { 2, 3 }, { 4, 5 } }, c, { d });", ExtraSpaces); 6558 verifyFormat("Class::Class : member{ 1, 2, 3 } {}", ExtraSpaces); 6559 verifyFormat("new vector<int>{ 1, 2, 3 };", ExtraSpaces); 6560 verifyFormat("new int[3]{ 1, 2, 3 };", ExtraSpaces); 6561 verifyFormat("return { arg1, arg2 };", ExtraSpaces); 6562 verifyFormat("return { arg1, SomeType{ parameter } };", ExtraSpaces); 6563 verifyFormat("int count = set<int>{ f(), g(), h() }.size();", ExtraSpaces); 6564 verifyFormat("new T{ arg1, arg2 };", ExtraSpaces); 6565 verifyFormat("f(MyMap[{ composite, key }]);", ExtraSpaces); 6566 verifyFormat("class Class {\n" 6567 " T member = { arg1, arg2 };\n" 6568 "};", 6569 ExtraSpaces); 6570 verifyFormat( 6571 "foo = aaaaaaaaaaa ? vector<int>{ aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 6572 " aaaaaaaaaaaaaaaaaaaa, aaaaa }\n" 6573 " : vector<int>{ bbbbbbbbbbbbbbbbbbbbbbbbbbb,\n" 6574 " bbbbbbbbbbbbbbbbbbbb, bbbbb };", 6575 ExtraSpaces); 6576 verifyFormat("DoSomethingWithVector({} /* No data */);", ExtraSpaces); 6577 verifyFormat("DoSomethingWithVector({ {} /* No data */ }, { { 1, 2 } });", 6578 ExtraSpaces); 6579 verifyFormat( 6580 "someFunction(OtherParam,\n" 6581 " BracedList{ // comment 1 (Forcing interesting break)\n" 6582 " param1, param2,\n" 6583 " // comment 2\n" 6584 " param3, param4 });", 6585 ExtraSpaces); 6586 verifyFormat( 6587 "std::this_thread::sleep_for(\n" 6588 " std::chrono::nanoseconds{ std::chrono::seconds{ 1 } } / 5);", 6589 ExtraSpaces); 6590 verifyFormat("std::vector<MyValues> aaaaaaaaaaaaaaaaaaa{\n" 6591 " aaaaaaa,\n" 6592 " aaaaaaaaaa,\n" 6593 " aaaaa,\n" 6594 " aaaaaaaaaaaaaaa,\n" 6595 " aaa,\n" 6596 " aaaaaaaaaa,\n" 6597 " a,\n" 6598 " aaaaaaaaaaaaaaaaaaaaa,\n" 6599 " aaaaaaaaaaaa,\n" 6600 " aaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaa,\n" 6601 " aaaaaaa,\n" 6602 " a};"); 6603 verifyFormat("vector<int> foo = { ::SomeGlobalFunction() };", ExtraSpaces); 6604 } 6605 6606 TEST_F(FormatTest, FormatsBracedListsInColumnLayout) { 6607 verifyFormat("vector<int> x = {1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6608 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6609 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6610 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6611 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6612 " 1, 22, 333, 4444, 55555, 666666, 7777777};"); 6613 verifyFormat("vector<int> x = {1, 22, 333, 4444, 55555, 666666, 7777777, //\n" 6614 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6615 " 1, 22, 333, 4444, 55555, //\n" 6616 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6617 " 1, 22, 333, 4444, 55555, 666666, 7777777};"); 6618 verifyFormat( 6619 "vector<int> x = {1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6620 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6621 " 1, 22, 333, 4444, 55555, 666666, // comment\n" 6622 " 7777777, 1, 22, 333, 4444, 55555, 666666,\n" 6623 " 7777777, 1, 22, 333, 4444, 55555, 666666,\n" 6624 " 7777777, 1, 22, 333, 4444, 55555, 666666,\n" 6625 " 7777777};"); 6626 verifyFormat("static const uint16_t CallerSavedRegs64Bittttt[] = {\n" 6627 " X86::RAX, X86::RDX, X86::RCX, X86::RSI, X86::RDI,\n" 6628 " X86::R8, X86::R9, X86::R10, X86::R11, 0};"); 6629 verifyFormat("static const uint16_t CallerSavedRegs64Bittttt[] = {\n" 6630 " X86::RAX, X86::RDX, X86::RCX, X86::RSI, X86::RDI,\n" 6631 " // Separating comment.\n" 6632 " X86::R8, X86::R9, X86::R10, X86::R11, 0};"); 6633 verifyFormat("static const uint16_t CallerSavedRegs64Bittttt[] = {\n" 6634 " // Leading comment\n" 6635 " X86::RAX, X86::RDX, X86::RCX, X86::RSI, X86::RDI,\n" 6636 " X86::R8, X86::R9, X86::R10, X86::R11, 0};"); 6637 verifyFormat("vector<int> x = {1, 1, 1, 1,\n" 6638 " 1, 1, 1, 1};", 6639 getLLVMStyleWithColumns(39)); 6640 verifyFormat("vector<int> x = {1, 1, 1, 1,\n" 6641 " 1, 1, 1, 1};", 6642 getLLVMStyleWithColumns(38)); 6643 verifyFormat("vector<int> aaaaaaaaaaaaaaaaaaaaaa = {\n" 6644 " 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1};", 6645 getLLVMStyleWithColumns(43)); 6646 verifyFormat( 6647 "static unsigned SomeValues[10][3] = {\n" 6648 " {1, 4, 0}, {4, 9, 0}, {4, 5, 9}, {8, 5, 4}, {1, 8, 4},\n" 6649 " {10, 1, 6}, {11, 0, 9}, {2, 11, 9}, {5, 2, 9}, {11, 2, 7}};"); 6650 verifyFormat("static auto fields = new vector<string>{\n" 6651 " \"aaaaaaaaaaaaa\",\n" 6652 " \"aaaaaaaaaaaaa\",\n" 6653 " \"aaaaaaaaaaaa\",\n" 6654 " \"aaaaaaaaaaaaaa\",\n" 6655 " \"aaaaaaaaaaaaaaaaaaaaaaaaa\",\n" 6656 " \"aaaaaaaaaaaa\",\n" 6657 " \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\",\n" 6658 "};"); 6659 verifyFormat("vector<int> x = {1, 2, 3, 4, aaaaaaaaaaaaaaaaa, 6};"); 6660 verifyFormat("vector<int> x = {1, aaaaaaaaaaaaaaaaaaaaaa,\n" 6661 " 2, bbbbbbbbbbbbbbbbbbbbbb,\n" 6662 " 3, cccccccccccccccccccccc};", 6663 getLLVMStyleWithColumns(60)); 6664 6665 // Trailing commas. 6666 verifyFormat("vector<int> x = {\n" 6667 " 1, 1, 1, 1, 1, 1, 1, 1,\n" 6668 "};", 6669 getLLVMStyleWithColumns(39)); 6670 verifyFormat("vector<int> x = {\n" 6671 " 1, 1, 1, 1, 1, 1, 1, 1, //\n" 6672 "};", 6673 getLLVMStyleWithColumns(39)); 6674 verifyFormat("vector<int> x = {1, 1, 1, 1,\n" 6675 " 1, 1, 1, 1,\n" 6676 " /**/ /**/};", 6677 getLLVMStyleWithColumns(39)); 6678 6679 // Trailing comment in the first line. 6680 verifyFormat("vector<int> iiiiiiiiiiiiiii = { //\n" 6681 " 1111111111, 2222222222, 33333333333, 4444444444, //\n" 6682 " 111111111, 222222222, 3333333333, 444444444, //\n" 6683 " 11111111, 22222222, 333333333, 44444444};"); 6684 // Trailing comment in the last line. 6685 verifyFormat("int aaaaa[] = {\n" 6686 " 1, 2, 3, // comment\n" 6687 " 4, 5, 6 // comment\n" 6688 "};"); 6689 6690 // With nested lists, we should either format one item per line or all nested 6691 // lists one on line. 6692 // FIXME: For some nested lists, we can do better. 6693 verifyFormat("return {{aaaaaaaaaaaaaaaaaaaaa},\n" 6694 " {aaaaaaaaaaaaaaaaaaa},\n" 6695 " {aaaaaaaaaaaaaaaaaaaaa},\n" 6696 " {aaaaaaaaaaaaaaaaa}};", 6697 getLLVMStyleWithColumns(60)); 6698 verifyFormat( 6699 "SomeStruct my_struct_array = {\n" 6700 " {aaaaaa, aaaaaaaa, aaaaaaaaaa, aaaaaaaaa, aaaaaaaaa, aaaaaaaaaa,\n" 6701 " aaaaaaaaaaaaa, aaaaaaa, aaa},\n" 6702 " {aaa, aaa},\n" 6703 " {aaa, aaa},\n" 6704 " {aaaa, aaaa, aaaa, aaaa, aaaa, aaaa, aaaa, aaa},\n" 6705 " {aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaa,\n" 6706 " aaaaaaaaaaaa, a, aaaaaaaaaa, aaaaaaaaa, aaa}};"); 6707 6708 // No column layout should be used here. 6709 verifyFormat("aaaaaaaaaaaaaaa = {aaaaaaaaaaaaaaaaaaaaaaaaaaa, 0, 0,\n" 6710 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb};"); 6711 6712 verifyNoCrash("a<,"); 6713 6714 // No braced initializer here. 6715 verifyFormat("void f() {\n" 6716 " struct Dummy {};\n" 6717 " f(v);\n" 6718 "}"); 6719 6720 // Long lists should be formatted in columns even if they are nested. 6721 verifyFormat( 6722 "vector<int> x = function({1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6723 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6724 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6725 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6726 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6727 " 1, 22, 333, 4444, 55555, 666666, 7777777});"); 6728 } 6729 6730 TEST_F(FormatTest, PullTrivialFunctionDefinitionsIntoSingleLine) { 6731 FormatStyle DoNotMerge = getLLVMStyle(); 6732 DoNotMerge.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_None; 6733 6734 verifyFormat("void f() { return 42; }"); 6735 verifyFormat("void f() {\n" 6736 " return 42;\n" 6737 "}", 6738 DoNotMerge); 6739 verifyFormat("void f() {\n" 6740 " // Comment\n" 6741 "}"); 6742 verifyFormat("{\n" 6743 "#error {\n" 6744 " int a;\n" 6745 "}"); 6746 verifyFormat("{\n" 6747 " int a;\n" 6748 "#error {\n" 6749 "}"); 6750 verifyFormat("void f() {} // comment"); 6751 verifyFormat("void f() { int a; } // comment"); 6752 verifyFormat("void f() {\n" 6753 "} // comment", 6754 DoNotMerge); 6755 verifyFormat("void f() {\n" 6756 " int a;\n" 6757 "} // comment", 6758 DoNotMerge); 6759 verifyFormat("void f() {\n" 6760 "} // comment", 6761 getLLVMStyleWithColumns(15)); 6762 6763 verifyFormat("void f() { return 42; }", getLLVMStyleWithColumns(23)); 6764 verifyFormat("void f() {\n return 42;\n}", getLLVMStyleWithColumns(22)); 6765 6766 verifyFormat("void f() {}", getLLVMStyleWithColumns(11)); 6767 verifyFormat("void f() {\n}", getLLVMStyleWithColumns(10)); 6768 verifyFormat("class C {\n" 6769 " C()\n" 6770 " : iiiiiiii(nullptr),\n" 6771 " kkkkkkk(nullptr),\n" 6772 " mmmmmmm(nullptr),\n" 6773 " nnnnnnn(nullptr) {}\n" 6774 "};", 6775 getGoogleStyle()); 6776 6777 FormatStyle NoColumnLimit = getLLVMStyle(); 6778 NoColumnLimit.ColumnLimit = 0; 6779 EXPECT_EQ("A() : b(0) {}", format("A():b(0){}", NoColumnLimit)); 6780 EXPECT_EQ("class C {\n" 6781 " A() : b(0) {}\n" 6782 "};", 6783 format("class C{A():b(0){}};", NoColumnLimit)); 6784 EXPECT_EQ("A()\n" 6785 " : b(0) {\n" 6786 "}", 6787 format("A()\n:b(0)\n{\n}", NoColumnLimit)); 6788 6789 FormatStyle DoNotMergeNoColumnLimit = NoColumnLimit; 6790 DoNotMergeNoColumnLimit.AllowShortFunctionsOnASingleLine = 6791 FormatStyle::SFS_None; 6792 EXPECT_EQ("A()\n" 6793 " : b(0) {\n" 6794 "}", 6795 format("A():b(0){}", DoNotMergeNoColumnLimit)); 6796 EXPECT_EQ("A()\n" 6797 " : b(0) {\n" 6798 "}", 6799 format("A()\n:b(0)\n{\n}", DoNotMergeNoColumnLimit)); 6800 6801 verifyFormat("#define A \\\n" 6802 " void f() { \\\n" 6803 " int i; \\\n" 6804 " }", 6805 getLLVMStyleWithColumns(20)); 6806 verifyFormat("#define A \\\n" 6807 " void f() { int i; }", 6808 getLLVMStyleWithColumns(21)); 6809 verifyFormat("#define A \\\n" 6810 " void f() { \\\n" 6811 " int i; \\\n" 6812 " } \\\n" 6813 " int j;", 6814 getLLVMStyleWithColumns(22)); 6815 verifyFormat("#define A \\\n" 6816 " void f() { int i; } \\\n" 6817 " int j;", 6818 getLLVMStyleWithColumns(23)); 6819 } 6820 6821 TEST_F(FormatTest, PullInlineFunctionDefinitionsIntoSingleLine) { 6822 FormatStyle MergeInlineOnly = getLLVMStyle(); 6823 MergeInlineOnly.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Inline; 6824 verifyFormat("class C {\n" 6825 " int f() { return 42; }\n" 6826 "};", 6827 MergeInlineOnly); 6828 verifyFormat("int f() {\n" 6829 " return 42;\n" 6830 "}", 6831 MergeInlineOnly); 6832 } 6833 6834 TEST_F(FormatTest, UnderstandContextOfRecordTypeKeywords) { 6835 // Elaborate type variable declarations. 6836 verifyFormat("struct foo a = {bar};\nint n;"); 6837 verifyFormat("class foo a = {bar};\nint n;"); 6838 verifyFormat("union foo a = {bar};\nint n;"); 6839 6840 // Elaborate types inside function definitions. 6841 verifyFormat("struct foo f() {}\nint n;"); 6842 verifyFormat("class foo f() {}\nint n;"); 6843 verifyFormat("union foo f() {}\nint n;"); 6844 6845 // Templates. 6846 verifyFormat("template <class X> void f() {}\nint n;"); 6847 verifyFormat("template <struct X> void f() {}\nint n;"); 6848 verifyFormat("template <union X> void f() {}\nint n;"); 6849 6850 // Actual definitions... 6851 verifyFormat("struct {\n} n;"); 6852 verifyFormat( 6853 "template <template <class T, class Y>, class Z> class X {\n} n;"); 6854 verifyFormat("union Z {\n int n;\n} x;"); 6855 verifyFormat("class MACRO Z {\n} n;"); 6856 verifyFormat("class MACRO(X) Z {\n} n;"); 6857 verifyFormat("class __attribute__(X) Z {\n} n;"); 6858 verifyFormat("class __declspec(X) Z {\n} n;"); 6859 verifyFormat("class A##B##C {\n} n;"); 6860 verifyFormat("class alignas(16) Z {\n} n;"); 6861 verifyFormat("class MACRO(X) alignas(16) Z {\n} n;"); 6862 verifyFormat("class MACROA MACRO(X) Z {\n} n;"); 6863 6864 // Redefinition from nested context: 6865 verifyFormat("class A::B::C {\n} n;"); 6866 6867 // Template definitions. 6868 verifyFormat( 6869 "template <typename F>\n" 6870 "Matcher(const Matcher<F> &Other,\n" 6871 " typename enable_if_c<is_base_of<F, T>::value &&\n" 6872 " !is_same<F, T>::value>::type * = 0)\n" 6873 " : Implementation(new ImplicitCastMatcher<F>(Other)) {}"); 6874 6875 // FIXME: This is still incorrectly handled at the formatter side. 6876 verifyFormat("template <> struct X < 15, i<3 && 42 < 50 && 33 < 28> {};"); 6877 verifyFormat("int i = SomeFunction(a<b, a> b);"); 6878 6879 // FIXME: 6880 // This now gets parsed incorrectly as class definition. 6881 // verifyFormat("class A<int> f() {\n}\nint n;"); 6882 6883 // Elaborate types where incorrectly parsing the structural element would 6884 // break the indent. 6885 verifyFormat("if (true)\n" 6886 " class X x;\n" 6887 "else\n" 6888 " f();\n"); 6889 6890 // This is simply incomplete. Formatting is not important, but must not crash. 6891 verifyFormat("class A:"); 6892 } 6893 6894 TEST_F(FormatTest, DoNotInterfereWithErrorAndWarning) { 6895 EXPECT_EQ("#error Leave all white!!!!! space* alone!\n", 6896 format("#error Leave all white!!!!! space* alone!\n")); 6897 EXPECT_EQ( 6898 "#warning Leave all white!!!!! space* alone!\n", 6899 format("#warning Leave all white!!!!! space* alone!\n")); 6900 EXPECT_EQ("#error 1", format(" # error 1")); 6901 EXPECT_EQ("#warning 1", format(" # warning 1")); 6902 } 6903 6904 TEST_F(FormatTest, FormatHashIfExpressions) { 6905 verifyFormat("#if AAAA && BBBB"); 6906 verifyFormat("#if (AAAA && BBBB)"); 6907 verifyFormat("#elif (AAAA && BBBB)"); 6908 // FIXME: Come up with a better indentation for #elif. 6909 verifyFormat( 6910 "#if !defined(AAAAAAA) && (defined CCCCCC || defined DDDDDD) && \\\n" 6911 " defined(BBBBBBBB)\n" 6912 "#elif !defined(AAAAAA) && (defined CCCCC || defined DDDDDD) && \\\n" 6913 " defined(BBBBBBBB)\n" 6914 "#endif", 6915 getLLVMStyleWithColumns(65)); 6916 } 6917 6918 TEST_F(FormatTest, MergeHandlingInTheFaceOfPreprocessorDirectives) { 6919 FormatStyle AllowsMergedIf = getGoogleStyle(); 6920 AllowsMergedIf.AllowShortIfStatementsOnASingleLine = true; 6921 verifyFormat("void f() { f(); }\n#error E", AllowsMergedIf); 6922 verifyFormat("if (true) return 42;\n#error E", AllowsMergedIf); 6923 verifyFormat("if (true)\n#error E\n return 42;", AllowsMergedIf); 6924 EXPECT_EQ("if (true) return 42;", 6925 format("if (true)\nreturn 42;", AllowsMergedIf)); 6926 FormatStyle ShortMergedIf = AllowsMergedIf; 6927 ShortMergedIf.ColumnLimit = 25; 6928 verifyFormat("#define A \\\n" 6929 " if (true) return 42;", 6930 ShortMergedIf); 6931 verifyFormat("#define A \\\n" 6932 " f(); \\\n" 6933 " if (true)\n" 6934 "#define B", 6935 ShortMergedIf); 6936 verifyFormat("#define A \\\n" 6937 " f(); \\\n" 6938 " if (true)\n" 6939 "g();", 6940 ShortMergedIf); 6941 verifyFormat("{\n" 6942 "#ifdef A\n" 6943 " // Comment\n" 6944 " if (true) continue;\n" 6945 "#endif\n" 6946 " // Comment\n" 6947 " if (true) continue;\n" 6948 "}", 6949 ShortMergedIf); 6950 ShortMergedIf.ColumnLimit = 29; 6951 verifyFormat("#define A \\\n" 6952 " if (aaaaaaaaaa) return 1; \\\n" 6953 " return 2;", 6954 ShortMergedIf); 6955 ShortMergedIf.ColumnLimit = 28; 6956 verifyFormat("#define A \\\n" 6957 " if (aaaaaaaaaa) \\\n" 6958 " return 1; \\\n" 6959 " return 2;", 6960 ShortMergedIf); 6961 } 6962 6963 TEST_F(FormatTest, BlockCommentsInControlLoops) { 6964 verifyFormat("if (0) /* a comment in a strange place */ {\n" 6965 " f();\n" 6966 "}"); 6967 verifyFormat("if (0) /* a comment in a strange place */ {\n" 6968 " f();\n" 6969 "} /* another comment */ else /* comment #3 */ {\n" 6970 " g();\n" 6971 "}"); 6972 verifyFormat("while (0) /* a comment in a strange place */ {\n" 6973 " f();\n" 6974 "}"); 6975 verifyFormat("for (;;) /* a comment in a strange place */ {\n" 6976 " f();\n" 6977 "}"); 6978 verifyFormat("do /* a comment in a strange place */ {\n" 6979 " f();\n" 6980 "} /* another comment */ while (0);"); 6981 } 6982 6983 TEST_F(FormatTest, BlockComments) { 6984 EXPECT_EQ("/* */ /* */ /* */\n/* */ /* */ /* */", 6985 format("/* *//* */ /* */\n/* *//* */ /* */")); 6986 EXPECT_EQ("/* */ a /* */ b;", format(" /* */ a/* */ b;")); 6987 EXPECT_EQ("#define A /*123*/ \\\n" 6988 " b\n" 6989 "/* */\n" 6990 "someCall(\n" 6991 " parameter);", 6992 format("#define A /*123*/ b\n" 6993 "/* */\n" 6994 "someCall(parameter);", 6995 getLLVMStyleWithColumns(15))); 6996 6997 EXPECT_EQ("#define A\n" 6998 "/* */ someCall(\n" 6999 " parameter);", 7000 format("#define A\n" 7001 "/* */someCall(parameter);", 7002 getLLVMStyleWithColumns(15))); 7003 EXPECT_EQ("/*\n**\n*/", format("/*\n**\n*/")); 7004 EXPECT_EQ("/*\n" 7005 "*\n" 7006 " * aaaaaa\n" 7007 " * aaaaaa\n" 7008 "*/", 7009 format("/*\n" 7010 "*\n" 7011 " * aaaaaa aaaaaa\n" 7012 "*/", 7013 getLLVMStyleWithColumns(10))); 7014 EXPECT_EQ("/*\n" 7015 "**\n" 7016 "* aaaaaa\n" 7017 "*aaaaaa\n" 7018 "*/", 7019 format("/*\n" 7020 "**\n" 7021 "* aaaaaa aaaaaa\n" 7022 "*/", 7023 getLLVMStyleWithColumns(10))); 7024 7025 FormatStyle NoBinPacking = getLLVMStyle(); 7026 NoBinPacking.BinPackParameters = false; 7027 EXPECT_EQ("someFunction(1, /* comment 1 */\n" 7028 " 2, /* comment 2 */\n" 7029 " 3, /* comment 3 */\n" 7030 " aaaa,\n" 7031 " bbbb);", 7032 format("someFunction (1, /* comment 1 */\n" 7033 " 2, /* comment 2 */ \n" 7034 " 3, /* comment 3 */\n" 7035 "aaaa, bbbb );", 7036 NoBinPacking)); 7037 verifyFormat( 7038 "bool aaaaaaaaaaaaa = /* comment: */ aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 7039 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 7040 EXPECT_EQ( 7041 "bool aaaaaaaaaaaaa = /* trailing comment */\n" 7042 " aaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 7043 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaa;", 7044 format( 7045 "bool aaaaaaaaaaaaa = /* trailing comment */\n" 7046 " aaaaaaaaaaaaaaaaaaaaaaaaaaa||aaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 7047 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaa;")); 7048 EXPECT_EQ( 7049 "int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa; /* comment */\n" 7050 "int bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb; /* comment */\n" 7051 "int cccccccccccccccccccccccccccccc; /* comment */\n", 7052 format("int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa; /* comment */\n" 7053 "int bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb; /* comment */\n" 7054 "int cccccccccccccccccccccccccccccc; /* comment */\n")); 7055 7056 verifyFormat("void f(int * /* unused */) {}"); 7057 7058 EXPECT_EQ("/*\n" 7059 " **\n" 7060 " */", 7061 format("/*\n" 7062 " **\n" 7063 " */")); 7064 EXPECT_EQ("/*\n" 7065 " *q\n" 7066 " */", 7067 format("/*\n" 7068 " *q\n" 7069 " */")); 7070 EXPECT_EQ("/*\n" 7071 " * q\n" 7072 " */", 7073 format("/*\n" 7074 " * q\n" 7075 " */")); 7076 EXPECT_EQ("/*\n" 7077 " **/", 7078 format("/*\n" 7079 " **/")); 7080 EXPECT_EQ("/*\n" 7081 " ***/", 7082 format("/*\n" 7083 " ***/")); 7084 } 7085 7086 TEST_F(FormatTest, BlockCommentsInMacros) { 7087 EXPECT_EQ("#define A \\\n" 7088 " { \\\n" 7089 " /* one line */ \\\n" 7090 " someCall();", 7091 format("#define A { \\\n" 7092 " /* one line */ \\\n" 7093 " someCall();", 7094 getLLVMStyleWithColumns(20))); 7095 EXPECT_EQ("#define A \\\n" 7096 " { \\\n" 7097 " /* previous */ \\\n" 7098 " /* one line */ \\\n" 7099 " someCall();", 7100 format("#define A { \\\n" 7101 " /* previous */ \\\n" 7102 " /* one line */ \\\n" 7103 " someCall();", 7104 getLLVMStyleWithColumns(20))); 7105 } 7106 7107 TEST_F(FormatTest, BlockCommentsAtEndOfLine) { 7108 EXPECT_EQ("a = {\n" 7109 " 1111 /* */\n" 7110 "};", 7111 format("a = {1111 /* */\n" 7112 "};", 7113 getLLVMStyleWithColumns(15))); 7114 EXPECT_EQ("a = {\n" 7115 " 1111 /* */\n" 7116 "};", 7117 format("a = {1111 /* */\n" 7118 "};", 7119 getLLVMStyleWithColumns(15))); 7120 7121 // FIXME: The formatting is still wrong here. 7122 EXPECT_EQ("a = {\n" 7123 " 1111 /* a\n" 7124 " */\n" 7125 "};", 7126 format("a = {1111 /* a */\n" 7127 "};", 7128 getLLVMStyleWithColumns(15))); 7129 } 7130 7131 TEST_F(FormatTest, IndentLineCommentsInStartOfBlockAtEndOfFile) { 7132 verifyFormat("{\n" 7133 " // a\n" 7134 " // b"); 7135 } 7136 7137 TEST_F(FormatTest, FormatStarDependingOnContext) { 7138 verifyFormat("void f(int *a);"); 7139 verifyFormat("void f() { f(fint * b); }"); 7140 verifyFormat("class A {\n void f(int *a);\n};"); 7141 verifyFormat("class A {\n int *a;\n};"); 7142 verifyFormat("namespace a {\n" 7143 "namespace b {\n" 7144 "class A {\n" 7145 " void f() {}\n" 7146 " int *a;\n" 7147 "};\n" 7148 "}\n" 7149 "}"); 7150 } 7151 7152 TEST_F(FormatTest, SpecialTokensAtEndOfLine) { 7153 verifyFormat("while"); 7154 verifyFormat("operator"); 7155 } 7156 7157 //===----------------------------------------------------------------------===// 7158 // Objective-C tests. 7159 //===----------------------------------------------------------------------===// 7160 7161 TEST_F(FormatTest, FormatForObjectiveCMethodDecls) { 7162 verifyFormat("- (void)sendAction:(SEL)aSelector to:(BOOL)anObject;"); 7163 EXPECT_EQ("- (NSUInteger)indexOfObject:(id)anObject;", 7164 format("-(NSUInteger)indexOfObject:(id)anObject;")); 7165 EXPECT_EQ("- (NSInteger)Mthod1;", format("-(NSInteger)Mthod1;")); 7166 EXPECT_EQ("+ (id)Mthod2;", format("+(id)Mthod2;")); 7167 EXPECT_EQ("- (NSInteger)Method3:(id)anObject;", 7168 format("-(NSInteger)Method3:(id)anObject;")); 7169 EXPECT_EQ("- (NSInteger)Method4:(id)anObject;", 7170 format("-(NSInteger)Method4:(id)anObject;")); 7171 EXPECT_EQ("- (NSInteger)Method5:(id)anObject:(id)AnotherObject;", 7172 format("-(NSInteger)Method5:(id)anObject:(id)AnotherObject;")); 7173 EXPECT_EQ("- (id)Method6:(id)A:(id)B:(id)C:(id)D;", 7174 format("- (id)Method6:(id)A:(id)B:(id)C:(id)D;")); 7175 EXPECT_EQ("- (void)sendAction:(SEL)aSelector to:(id)anObject " 7176 "forAllCells:(BOOL)flag;", 7177 format("- (void)sendAction:(SEL)aSelector to:(id)anObject " 7178 "forAllCells:(BOOL)flag;")); 7179 7180 // Very long objectiveC method declaration. 7181 verifyFormat("- (void)aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa:\n" 7182 " (SoooooooooooooooooooooomeType *)bbbbbbbbbb;"); 7183 verifyFormat("- (NSUInteger)indexOfObject:(id)anObject\n" 7184 " inRange:(NSRange)range\n" 7185 " outRange:(NSRange)out_range\n" 7186 " outRange1:(NSRange)out_range1\n" 7187 " outRange2:(NSRange)out_range2\n" 7188 " outRange3:(NSRange)out_range3\n" 7189 " outRange4:(NSRange)out_range4\n" 7190 " outRange5:(NSRange)out_range5\n" 7191 " outRange6:(NSRange)out_range6\n" 7192 " outRange7:(NSRange)out_range7\n" 7193 " outRange8:(NSRange)out_range8\n" 7194 " outRange9:(NSRange)out_range9;"); 7195 7196 // When the function name has to be wrapped. 7197 FormatStyle Style = getLLVMStyle(); 7198 Style.IndentWrappedFunctionNames = false; 7199 verifyFormat("- (SomeLooooooooooooooooooooongType *)\n" 7200 "veryLooooooooooongName:(NSString)aaaaaaaaaaaaaa\n" 7201 " anotherName:(NSString)bbbbbbbbbbbbbb {\n" 7202 "}", 7203 Style); 7204 Style.IndentWrappedFunctionNames = true; 7205 verifyFormat("- (SomeLooooooooooooooooooooongType *)\n" 7206 " veryLooooooooooongName:(NSString)aaaaaaaaaaaaaa\n" 7207 " anotherName:(NSString)bbbbbbbbbbbbbb {\n" 7208 "}", 7209 Style); 7210 7211 verifyFormat("- (int)sum:(vector<int>)numbers;"); 7212 verifyGoogleFormat("- (void)setDelegate:(id<Protocol>)delegate;"); 7213 // FIXME: In LLVM style, there should be a space in front of a '<' for ObjC 7214 // protocol lists (but not for template classes): 7215 // verifyFormat("- (void)setDelegate:(id <Protocol>)delegate;"); 7216 7217 verifyFormat("- (int (*)())foo:(int (*)())f;"); 7218 verifyGoogleFormat("- (int (*)())foo:(int (*)())foo;"); 7219 7220 // If there's no return type (very rare in practice!), LLVM and Google style 7221 // agree. 7222 verifyFormat("- foo;"); 7223 verifyFormat("- foo:(int)f;"); 7224 verifyGoogleFormat("- foo:(int)foo;"); 7225 } 7226 7227 TEST_F(FormatTest, FormatObjCInterface) { 7228 verifyFormat("@interface Foo : NSObject <NSSomeDelegate> {\n" 7229 "@public\n" 7230 " int field1;\n" 7231 "@protected\n" 7232 " int field2;\n" 7233 "@private\n" 7234 " int field3;\n" 7235 "@package\n" 7236 " int field4;\n" 7237 "}\n" 7238 "+ (id)init;\n" 7239 "@end"); 7240 7241 verifyGoogleFormat("@interface Foo : NSObject<NSSomeDelegate> {\n" 7242 " @public\n" 7243 " int field1;\n" 7244 " @protected\n" 7245 " int field2;\n" 7246 " @private\n" 7247 " int field3;\n" 7248 " @package\n" 7249 " int field4;\n" 7250 "}\n" 7251 "+ (id)init;\n" 7252 "@end"); 7253 7254 verifyFormat("@interface /* wait for it */ Foo\n" 7255 "+ (id)init;\n" 7256 "// Look, a comment!\n" 7257 "- (int)answerWith:(int)i;\n" 7258 "@end"); 7259 7260 verifyFormat("@interface Foo\n" 7261 "@end\n" 7262 "@interface Bar\n" 7263 "@end"); 7264 7265 verifyFormat("@interface Foo : Bar\n" 7266 "+ (id)init;\n" 7267 "@end"); 7268 7269 verifyFormat("@interface Foo : /**/ Bar /**/ <Baz, /**/ Quux>\n" 7270 "+ (id)init;\n" 7271 "@end"); 7272 7273 verifyGoogleFormat("@interface Foo : Bar<Baz, Quux>\n" 7274 "+ (id)init;\n" 7275 "@end"); 7276 7277 verifyFormat("@interface Foo (HackStuff)\n" 7278 "+ (id)init;\n" 7279 "@end"); 7280 7281 verifyFormat("@interface Foo ()\n" 7282 "+ (id)init;\n" 7283 "@end"); 7284 7285 verifyFormat("@interface Foo (HackStuff) <MyProtocol>\n" 7286 "+ (id)init;\n" 7287 "@end"); 7288 7289 verifyGoogleFormat("@interface Foo (HackStuff)<MyProtocol>\n" 7290 "+ (id)init;\n" 7291 "@end"); 7292 7293 verifyFormat("@interface Foo {\n" 7294 " int _i;\n" 7295 "}\n" 7296 "+ (id)init;\n" 7297 "@end"); 7298 7299 verifyFormat("@interface Foo : Bar {\n" 7300 " int _i;\n" 7301 "}\n" 7302 "+ (id)init;\n" 7303 "@end"); 7304 7305 verifyFormat("@interface Foo : Bar <Baz, Quux> {\n" 7306 " int _i;\n" 7307 "}\n" 7308 "+ (id)init;\n" 7309 "@end"); 7310 7311 verifyFormat("@interface Foo (HackStuff) {\n" 7312 " int _i;\n" 7313 "}\n" 7314 "+ (id)init;\n" 7315 "@end"); 7316 7317 verifyFormat("@interface Foo () {\n" 7318 " int _i;\n" 7319 "}\n" 7320 "+ (id)init;\n" 7321 "@end"); 7322 7323 verifyFormat("@interface Foo (HackStuff) <MyProtocol> {\n" 7324 " int _i;\n" 7325 "}\n" 7326 "+ (id)init;\n" 7327 "@end"); 7328 7329 FormatStyle OnePerLine = getGoogleStyle(); 7330 OnePerLine.BinPackParameters = false; 7331 verifyFormat("@interface aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ()<\n" 7332 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 7333 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 7334 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 7335 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa> {\n" 7336 "}", 7337 OnePerLine); 7338 } 7339 7340 TEST_F(FormatTest, FormatObjCImplementation) { 7341 verifyFormat("@implementation Foo : NSObject {\n" 7342 "@public\n" 7343 " int field1;\n" 7344 "@protected\n" 7345 " int field2;\n" 7346 "@private\n" 7347 " int field3;\n" 7348 "@package\n" 7349 " int field4;\n" 7350 "}\n" 7351 "+ (id)init {\n}\n" 7352 "@end"); 7353 7354 verifyGoogleFormat("@implementation Foo : NSObject {\n" 7355 " @public\n" 7356 " int field1;\n" 7357 " @protected\n" 7358 " int field2;\n" 7359 " @private\n" 7360 " int field3;\n" 7361 " @package\n" 7362 " int field4;\n" 7363 "}\n" 7364 "+ (id)init {\n}\n" 7365 "@end"); 7366 7367 verifyFormat("@implementation Foo\n" 7368 "+ (id)init {\n" 7369 " if (true)\n" 7370 " return nil;\n" 7371 "}\n" 7372 "// Look, a comment!\n" 7373 "- (int)answerWith:(int)i {\n" 7374 " return i;\n" 7375 "}\n" 7376 "+ (int)answerWith:(int)i {\n" 7377 " return i;\n" 7378 "}\n" 7379 "@end"); 7380 7381 verifyFormat("@implementation Foo\n" 7382 "@end\n" 7383 "@implementation Bar\n" 7384 "@end"); 7385 7386 EXPECT_EQ("@implementation Foo : Bar\n" 7387 "+ (id)init {\n}\n" 7388 "- (void)foo {\n}\n" 7389 "@end", 7390 format("@implementation Foo : Bar\n" 7391 "+(id)init{}\n" 7392 "-(void)foo{}\n" 7393 "@end")); 7394 7395 verifyFormat("@implementation Foo {\n" 7396 " int _i;\n" 7397 "}\n" 7398 "+ (id)init {\n}\n" 7399 "@end"); 7400 7401 verifyFormat("@implementation Foo : Bar {\n" 7402 " int _i;\n" 7403 "}\n" 7404 "+ (id)init {\n}\n" 7405 "@end"); 7406 7407 verifyFormat("@implementation Foo (HackStuff)\n" 7408 "+ (id)init {\n}\n" 7409 "@end"); 7410 verifyFormat("@implementation ObjcClass\n" 7411 "- (void)method;\n" 7412 "{}\n" 7413 "@end"); 7414 } 7415 7416 TEST_F(FormatTest, FormatObjCProtocol) { 7417 verifyFormat("@protocol Foo\n" 7418 "@property(weak) id delegate;\n" 7419 "- (NSUInteger)numberOfThings;\n" 7420 "@end"); 7421 7422 verifyFormat("@protocol MyProtocol <NSObject>\n" 7423 "- (NSUInteger)numberOfThings;\n" 7424 "@end"); 7425 7426 verifyGoogleFormat("@protocol MyProtocol<NSObject>\n" 7427 "- (NSUInteger)numberOfThings;\n" 7428 "@end"); 7429 7430 verifyFormat("@protocol Foo;\n" 7431 "@protocol Bar;\n"); 7432 7433 verifyFormat("@protocol Foo\n" 7434 "@end\n" 7435 "@protocol Bar\n" 7436 "@end"); 7437 7438 verifyFormat("@protocol myProtocol\n" 7439 "- (void)mandatoryWithInt:(int)i;\n" 7440 "@optional\n" 7441 "- (void)optional;\n" 7442 "@required\n" 7443 "- (void)required;\n" 7444 "@optional\n" 7445 "@property(assign) int madProp;\n" 7446 "@end\n"); 7447 7448 verifyFormat("@property(nonatomic, assign, readonly)\n" 7449 " int *looooooooooooooooooooooooooooongNumber;\n" 7450 "@property(nonatomic, assign, readonly)\n" 7451 " NSString *looooooooooooooooooooooooooooongName;"); 7452 7453 verifyFormat("@implementation PR18406\n" 7454 "}\n" 7455 "@end"); 7456 } 7457 7458 TEST_F(FormatTest, FormatObjCMethodDeclarations) { 7459 verifyFormat("- (void)doSomethingWith:(GTMFoo *)theFoo\n" 7460 " rect:(NSRect)theRect\n" 7461 " interval:(float)theInterval {\n" 7462 "}"); 7463 verifyFormat("- (void)shortf:(GTMFoo *)theFoo\n" 7464 " longKeyword:(NSRect)theRect\n" 7465 " longerKeyword:(float)theInterval\n" 7466 " error:(NSError **)theError {\n" 7467 "}"); 7468 verifyFormat("- (void)shortf:(GTMFoo *)theFoo\n" 7469 " longKeyword:(NSRect)theRect\n" 7470 " evenLongerKeyword:(float)theInterval\n" 7471 " error:(NSError **)theError {\n" 7472 "}"); 7473 verifyFormat("- (instancetype)initXxxxxx:(id<x>)x\n" 7474 " y:(id<yyyyyyyyyyyyyyyyyyyy>)y\n" 7475 " NS_DESIGNATED_INITIALIZER;", 7476 getLLVMStyleWithColumns(60)); 7477 7478 // Continuation indent width should win over aligning colons if the function 7479 // name is long. 7480 FormatStyle continuationStyle = getGoogleStyle(); 7481 continuationStyle.ColumnLimit = 40; 7482 continuationStyle.IndentWrappedFunctionNames = true; 7483 verifyFormat("- (void)shortf:(GTMFoo *)theFoo\n" 7484 " dontAlignNamef:(NSRect)theRect {\n" 7485 "}", 7486 continuationStyle); 7487 7488 // Make sure we don't break aligning for short parameter names. 7489 verifyFormat("- (void)shortf:(GTMFoo *)theFoo\n" 7490 " aShortf:(NSRect)theRect {\n" 7491 "}", 7492 continuationStyle); 7493 } 7494 7495 TEST_F(FormatTest, FormatObjCMethodExpr) { 7496 verifyFormat("[foo bar:baz];"); 7497 verifyFormat("return [foo bar:baz];"); 7498 verifyFormat("return (a)[foo bar:baz];"); 7499 verifyFormat("f([foo bar:baz]);"); 7500 verifyFormat("f(2, [foo bar:baz]);"); 7501 verifyFormat("f(2, a ? b : c);"); 7502 verifyFormat("[[self initWithInt:4] bar:[baz quux:arrrr]];"); 7503 7504 // Unary operators. 7505 verifyFormat("int a = +[foo bar:baz];"); 7506 verifyFormat("int a = -[foo bar:baz];"); 7507 verifyFormat("int a = ![foo bar:baz];"); 7508 verifyFormat("int a = ~[foo bar:baz];"); 7509 verifyFormat("int a = ++[foo bar:baz];"); 7510 verifyFormat("int a = --[foo bar:baz];"); 7511 verifyFormat("int a = sizeof [foo bar:baz];"); 7512 verifyFormat("int a = alignof [foo bar:baz];", getGoogleStyle()); 7513 verifyFormat("int a = &[foo bar:baz];"); 7514 verifyFormat("int a = *[foo bar:baz];"); 7515 // FIXME: Make casts work, without breaking f()[4]. 7516 // verifyFormat("int a = (int)[foo bar:baz];"); 7517 // verifyFormat("return (int)[foo bar:baz];"); 7518 // verifyFormat("(void)[foo bar:baz];"); 7519 verifyFormat("return (MyType *)[self.tableView cellForRowAtIndexPath:cell];"); 7520 7521 // Binary operators. 7522 verifyFormat("[foo bar:baz], [foo bar:baz];"); 7523 verifyFormat("[foo bar:baz] = [foo bar:baz];"); 7524 verifyFormat("[foo bar:baz] *= [foo bar:baz];"); 7525 verifyFormat("[foo bar:baz] /= [foo bar:baz];"); 7526 verifyFormat("[foo bar:baz] %= [foo bar:baz];"); 7527 verifyFormat("[foo bar:baz] += [foo bar:baz];"); 7528 verifyFormat("[foo bar:baz] -= [foo bar:baz];"); 7529 verifyFormat("[foo bar:baz] <<= [foo bar:baz];"); 7530 verifyFormat("[foo bar:baz] >>= [foo bar:baz];"); 7531 verifyFormat("[foo bar:baz] &= [foo bar:baz];"); 7532 verifyFormat("[foo bar:baz] ^= [foo bar:baz];"); 7533 verifyFormat("[foo bar:baz] |= [foo bar:baz];"); 7534 verifyFormat("[foo bar:baz] ? [foo bar:baz] : [foo bar:baz];"); 7535 verifyFormat("[foo bar:baz] || [foo bar:baz];"); 7536 verifyFormat("[foo bar:baz] && [foo bar:baz];"); 7537 verifyFormat("[foo bar:baz] | [foo bar:baz];"); 7538 verifyFormat("[foo bar:baz] ^ [foo bar:baz];"); 7539 verifyFormat("[foo bar:baz] & [foo bar:baz];"); 7540 verifyFormat("[foo bar:baz] == [foo bar:baz];"); 7541 verifyFormat("[foo bar:baz] != [foo bar:baz];"); 7542 verifyFormat("[foo bar:baz] >= [foo bar:baz];"); 7543 verifyFormat("[foo bar:baz] <= [foo bar:baz];"); 7544 verifyFormat("[foo bar:baz] > [foo bar:baz];"); 7545 verifyFormat("[foo bar:baz] < [foo bar:baz];"); 7546 verifyFormat("[foo bar:baz] >> [foo bar:baz];"); 7547 verifyFormat("[foo bar:baz] << [foo bar:baz];"); 7548 verifyFormat("[foo bar:baz] - [foo bar:baz];"); 7549 verifyFormat("[foo bar:baz] + [foo bar:baz];"); 7550 verifyFormat("[foo bar:baz] * [foo bar:baz];"); 7551 verifyFormat("[foo bar:baz] / [foo bar:baz];"); 7552 verifyFormat("[foo bar:baz] % [foo bar:baz];"); 7553 // Whew! 7554 7555 verifyFormat("return in[42];"); 7556 verifyFormat("for (auto v : in[1]) {\n}"); 7557 verifyFormat("for (int i = 0; i < in[a]; ++i) {\n}"); 7558 verifyFormat("for (int i = 0; in[a] < i; ++i) {\n}"); 7559 verifyFormat("for (int i = 0; i < n; ++i, ++in[a]) {\n}"); 7560 verifyFormat("for (int i = 0; i < n; ++i, in[a]++) {\n}"); 7561 verifyFormat("for (int i = 0; i < f(in[a]); ++i, in[a]++) {\n}"); 7562 verifyFormat("for (id foo in [self getStuffFor:bla]) {\n" 7563 "}"); 7564 verifyFormat("[self aaaaa:MACRO(a, b:, c:)];"); 7565 verifyFormat("[self aaaaa:(1 + 2) bbbbb:3];"); 7566 verifyFormat("[self aaaaa:(Type)a bbbbb:3];"); 7567 7568 verifyFormat("[self stuffWithInt:(4 + 2) float:4.5];"); 7569 verifyFormat("[self stuffWithInt:a ? b : c float:4.5];"); 7570 verifyFormat("[self stuffWithInt:a ? [self foo:bar] : c];"); 7571 verifyFormat("[self stuffWithInt:a ? (e ? f : g) : c];"); 7572 verifyFormat("[cond ? obj1 : obj2 methodWithParam:param]"); 7573 verifyFormat("[button setAction:@selector(zoomOut:)];"); 7574 verifyFormat("[color getRed:&r green:&g blue:&b alpha:&a];"); 7575 7576 verifyFormat("arr[[self indexForFoo:a]];"); 7577 verifyFormat("throw [self errorFor:a];"); 7578 verifyFormat("@throw [self errorFor:a];"); 7579 7580 verifyFormat("[(id)foo bar:(id)baz quux:(id)snorf];"); 7581 verifyFormat("[(id)foo bar:(id) ? baz : quux];"); 7582 verifyFormat("4 > 4 ? (id)a : (id)baz;"); 7583 7584 // This tests that the formatter doesn't break after "backing" but before ":", 7585 // which would be at 80 columns. 7586 verifyFormat( 7587 "void f() {\n" 7588 " if ((self = [super initWithContentRect:contentRect\n" 7589 " styleMask:styleMask ?: otherMask\n" 7590 " backing:NSBackingStoreBuffered\n" 7591 " defer:YES]))"); 7592 7593 verifyFormat( 7594 "[foo checkThatBreakingAfterColonWorksOk:\n" 7595 " [bar ifItDoes:reduceOverallLineLengthLikeInThisCase]];"); 7596 7597 verifyFormat("[myObj short:arg1 // Force line break\n" 7598 " longKeyword:arg2 != nil ? arg2 : @\"longKeyword\"\n" 7599 " evenLongerKeyword:arg3 ?: @\"evenLongerKeyword\"\n" 7600 " error:arg4];"); 7601 verifyFormat( 7602 "void f() {\n" 7603 " popup_window_.reset([[RenderWidgetPopupWindow alloc]\n" 7604 " initWithContentRect:NSMakeRect(origin_global.x, origin_global.y,\n" 7605 " pos.width(), pos.height())\n" 7606 " styleMask:NSBorderlessWindowMask\n" 7607 " backing:NSBackingStoreBuffered\n" 7608 " defer:NO]);\n" 7609 "}"); 7610 verifyFormat( 7611 "void f() {\n" 7612 " popup_wdow_.reset([[RenderWidgetPopupWindow alloc]\n" 7613 " iniithContentRect:NSMakRet(origin_global.x, origin_global.y,\n" 7614 " pos.width(), pos.height())\n" 7615 " syeMask:NSBorderlessWindowMask\n" 7616 " bking:NSBackingStoreBuffered\n" 7617 " der:NO]);\n" 7618 "}", 7619 getLLVMStyleWithColumns(70)); 7620 verifyFormat( 7621 "void f() {\n" 7622 " popup_window_.reset([[RenderWidgetPopupWindow alloc]\n" 7623 " initWithContentRect:NSMakeRect(origin_global.x, origin_global.y,\n" 7624 " pos.width(), pos.height())\n" 7625 " styleMask:NSBorderlessWindowMask\n" 7626 " backing:NSBackingStoreBuffered\n" 7627 " defer:NO]);\n" 7628 "}", 7629 getChromiumStyle(FormatStyle::LK_Cpp)); 7630 verifyFormat("[contentsContainer replaceSubview:[subviews objectAtIndex:0]\n" 7631 " with:contentsNativeView];"); 7632 7633 verifyFormat( 7634 "[pboard addTypes:[NSArray arrayWithObject:kBookmarkButtonDragType]\n" 7635 " owner:nillllll];"); 7636 7637 verifyFormat( 7638 "[pboard setData:[NSData dataWithBytes:&button length:sizeof(button)]\n" 7639 " forType:kBookmarkButtonDragType];"); 7640 7641 verifyFormat("[defaultCenter addObserver:self\n" 7642 " selector:@selector(willEnterFullscreen)\n" 7643 " name:kWillEnterFullscreenNotification\n" 7644 " object:nil];"); 7645 verifyFormat("[image_rep drawInRect:drawRect\n" 7646 " fromRect:NSZeroRect\n" 7647 " operation:NSCompositeCopy\n" 7648 " fraction:1.0\n" 7649 " respectFlipped:NO\n" 7650 " hints:nil];"); 7651 verifyFormat("[aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 7652 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa];"); 7653 verifyFormat("[aaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaa)\n" 7654 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa];"); 7655 verifyFormat("[aaaaaaaaaaaaaaaaaaaaaaa.aaaaaaaa[aaaaaaaaaaaaaaaaaaaaa]\n" 7656 " aaaaaaaaaaaaaaaaaaaaaa];"); 7657 verifyFormat("[call aaaaaaaa.aaaaaa.aaaaaaaa.aaaaaaaa.aaaaaaaa.aaaaaaaa\n" 7658 " .aaaaaaaa];", // FIXME: Indentation seems off. 7659 getLLVMStyleWithColumns(60)); 7660 7661 verifyFormat( 7662 "scoped_nsobject<NSTextField> message(\n" 7663 " // The frame will be fixed up when |-setMessageText:| is called.\n" 7664 " [[NSTextField alloc] initWithFrame:NSMakeRect(0, 0, 0, 0)]);"); 7665 verifyFormat("[self aaaaaa:bbbbbbbbbbbbb\n" 7666 " aaaaaaaaaa:bbbbbbbbbbbbbbbbb\n" 7667 " aaaaa:bbbbbbbbbbb + bbbbbbbbbbbb\n" 7668 " aaaa:bbb];"); 7669 verifyFormat("[self param:function( //\n" 7670 " parameter)]"); 7671 verifyFormat( 7672 "[self aaaaaaaaaa:aaaaaaaaaaaaaaa | aaaaaaaaaaaaaaa | aaaaaaaaaaaaaaa |\n" 7673 " aaaaaaaaaaaaaaa | aaaaaaaaaaaaaaa | aaaaaaaaaaaaaaa |\n" 7674 " aaaaaaaaaaaaaaa | aaaaaaaaaaaaaaa];"); 7675 7676 // FIXME: This violates the column limit. 7677 verifyFormat( 7678 "[aaaaaaaaaaaaaaaaaaaaaaaaa\n" 7679 " aaaaaaaaaaaaaaaaa:aaaaaaaa\n" 7680 " aaa:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa];", 7681 getLLVMStyleWithColumns(60)); 7682 7683 // Variadic parameters. 7684 verifyFormat( 7685 "NSArray *myStrings = [NSArray stringarray:@\"a\", @\"b\", nil];"); 7686 verifyFormat( 7687 "[self aaaaaaaaaaaaa:aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaa,\n" 7688 " aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaa,\n" 7689 " aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaa];"); 7690 verifyFormat("[self // break\n" 7691 " a:a\n" 7692 " aaa:aaa];"); 7693 verifyFormat("bool a = ([aaaaaaaa aaaaa] == aaaaaaaaaaaaaaaaa ||\n" 7694 " [aaaaaaaa aaaaa] == aaaaaaaaaaaaaaaaaaaa);"); 7695 } 7696 7697 TEST_F(FormatTest, ObjCAt) { 7698 verifyFormat("@autoreleasepool"); 7699 verifyFormat("@catch"); 7700 verifyFormat("@class"); 7701 verifyFormat("@compatibility_alias"); 7702 verifyFormat("@defs"); 7703 verifyFormat("@dynamic"); 7704 verifyFormat("@encode"); 7705 verifyFormat("@end"); 7706 verifyFormat("@finally"); 7707 verifyFormat("@implementation"); 7708 verifyFormat("@import"); 7709 verifyFormat("@interface"); 7710 verifyFormat("@optional"); 7711 verifyFormat("@package"); 7712 verifyFormat("@private"); 7713 verifyFormat("@property"); 7714 verifyFormat("@protected"); 7715 verifyFormat("@protocol"); 7716 verifyFormat("@public"); 7717 verifyFormat("@required"); 7718 verifyFormat("@selector"); 7719 verifyFormat("@synchronized"); 7720 verifyFormat("@synthesize"); 7721 verifyFormat("@throw"); 7722 verifyFormat("@try"); 7723 7724 EXPECT_EQ("@interface", format("@ interface")); 7725 7726 // The precise formatting of this doesn't matter, nobody writes code like 7727 // this. 7728 verifyFormat("@ /*foo*/ interface"); 7729 } 7730 7731 TEST_F(FormatTest, ObjCSnippets) { 7732 verifyFormat("@autoreleasepool {\n" 7733 " foo();\n" 7734 "}"); 7735 verifyFormat("@class Foo, Bar;"); 7736 verifyFormat("@compatibility_alias AliasName ExistingClass;"); 7737 verifyFormat("@dynamic textColor;"); 7738 verifyFormat("char *buf1 = @encode(int *);"); 7739 verifyFormat("char *buf1 = @encode(typeof(4 * 5));"); 7740 verifyFormat("char *buf1 = @encode(int **);"); 7741 verifyFormat("Protocol *proto = @protocol(p1);"); 7742 verifyFormat("SEL s = @selector(foo:);"); 7743 verifyFormat("@synchronized(self) {\n" 7744 " f();\n" 7745 "}"); 7746 7747 verifyFormat("@synthesize dropArrowPosition = dropArrowPosition_;"); 7748 verifyGoogleFormat("@synthesize dropArrowPosition = dropArrowPosition_;"); 7749 7750 verifyFormat("@property(assign, nonatomic) CGFloat hoverAlpha;"); 7751 verifyFormat("@property(assign, getter=isEditable) BOOL editable;"); 7752 verifyGoogleFormat("@property(assign, getter=isEditable) BOOL editable;"); 7753 verifyFormat("@property (assign, getter=isEditable) BOOL editable;", 7754 getMozillaStyle()); 7755 verifyFormat("@property BOOL editable;", getMozillaStyle()); 7756 verifyFormat("@property (assign, getter=isEditable) BOOL editable;", 7757 getWebKitStyle()); 7758 verifyFormat("@property BOOL editable;", getWebKitStyle()); 7759 7760 verifyFormat("@import foo.bar;\n" 7761 "@import baz;"); 7762 } 7763 7764 TEST_F(FormatTest, ObjCForIn) { 7765 verifyFormat("- (void)test {\n" 7766 " for (NSString *n in arrayOfStrings) {\n" 7767 " foo(n);\n" 7768 " }\n" 7769 "}"); 7770 verifyFormat("- (void)test {\n" 7771 " for (NSString *n in (__bridge NSArray *)arrayOfStrings) {\n" 7772 " foo(n);\n" 7773 " }\n" 7774 "}"); 7775 } 7776 7777 TEST_F(FormatTest, ObjCLiterals) { 7778 verifyFormat("@\"String\""); 7779 verifyFormat("@1"); 7780 verifyFormat("@+4.8"); 7781 verifyFormat("@-4"); 7782 verifyFormat("@1LL"); 7783 verifyFormat("@.5"); 7784 verifyFormat("@'c'"); 7785 verifyFormat("@true"); 7786 7787 verifyFormat("NSNumber *smallestInt = @(-INT_MAX - 1);"); 7788 verifyFormat("NSNumber *piOverTwo = @(M_PI / 2);"); 7789 verifyFormat("NSNumber *favoriteColor = @(Green);"); 7790 verifyFormat("NSString *path = @(getenv(\"PATH\"));"); 7791 7792 verifyFormat("[dictionary setObject:@(1) forKey:@\"number\"];"); 7793 } 7794 7795 TEST_F(FormatTest, ObjCDictLiterals) { 7796 verifyFormat("@{"); 7797 verifyFormat("@{}"); 7798 verifyFormat("@{@\"one\" : @1}"); 7799 verifyFormat("return @{@\"one\" : @1;"); 7800 verifyFormat("@{@\"one\" : @1}"); 7801 7802 verifyFormat("@{@\"one\" : @{@2 : @1}}"); 7803 verifyFormat("@{\n" 7804 " @\"one\" : @{@2 : @1},\n" 7805 "}"); 7806 7807 verifyFormat("@{1 > 2 ? @\"one\" : @\"two\" : 1 > 2 ? @1 : @2}"); 7808 verifyIncompleteFormat("[self setDict:@{}"); 7809 verifyIncompleteFormat("[self setDict:@{@1 : @2}"); 7810 verifyFormat("NSLog(@\"%@\", @{@1 : @2, @2 : @3}[@1]);"); 7811 verifyFormat( 7812 "NSDictionary *masses = @{@\"H\" : @1.0078, @\"He\" : @4.0026};"); 7813 verifyFormat( 7814 "NSDictionary *settings = @{AVEncoderKey : @(AVAudioQualityMax)};"); 7815 7816 verifyFormat("NSDictionary *d = @{\n" 7817 " @\"nam\" : NSUserNam(),\n" 7818 " @\"dte\" : [NSDate date],\n" 7819 " @\"processInfo\" : [NSProcessInfo processInfo]\n" 7820 "};"); 7821 verifyFormat( 7822 "@{\n" 7823 " NSFontAttributeNameeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee : " 7824 "regularFont,\n" 7825 "};"); 7826 verifyGoogleFormat( 7827 "@{\n" 7828 " NSFontAttributeNameeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee : " 7829 "regularFont,\n" 7830 "};"); 7831 verifyFormat( 7832 "@{\n" 7833 " NSFontAttributeNameeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee :\n" 7834 " reeeeeeeeeeeeeeeeeeeeeeeegularFont,\n" 7835 "};"); 7836 7837 // We should try to be robust in case someone forgets the "@". 7838 verifyFormat("NSDictionary *d = {\n" 7839 " @\"nam\" : NSUserNam(),\n" 7840 " @\"dte\" : [NSDate date],\n" 7841 " @\"processInfo\" : [NSProcessInfo processInfo]\n" 7842 "};"); 7843 verifyFormat("NSMutableDictionary *dictionary =\n" 7844 " [NSMutableDictionary dictionaryWithDictionary:@{\n" 7845 " aaaaaaaaaaaaaaaaaaaaa : aaaaaaaaaaaaa,\n" 7846 " bbbbbbbbbbbbbbbbbb : bbbbb,\n" 7847 " cccccccccccccccc : ccccccccccccccc\n" 7848 " }];"); 7849 7850 // Ensure that casts before the key are kept on the same line as the key. 7851 verifyFormat( 7852 "NSDictionary *d = @{\n" 7853 " (aaaaaaaa id)aaaaaaaaa : (aaaaaaaa id)aaaaaaaaaaaaaaaaaaaaaaaa,\n" 7854 " (aaaaaaaa id)aaaaaaaaaaaaaa : (aaaaaaaa id)aaaaaaaaaaaaaa,\n" 7855 "};"); 7856 } 7857 7858 TEST_F(FormatTest, ObjCArrayLiterals) { 7859 verifyIncompleteFormat("@["); 7860 verifyFormat("@[]"); 7861 verifyFormat( 7862 "NSArray *array = @[ @\" Hey \", NSApp, [NSNumber numberWithInt:42] ];"); 7863 verifyFormat("return @[ @3, @[], @[ @4, @5 ] ];"); 7864 verifyFormat("NSArray *array = @[ [foo description] ];"); 7865 7866 verifyFormat( 7867 "NSArray *some_variable = @[\n" 7868 " aaaa == bbbbbbbbbbb ? @\"aaaaaaaaaaaa\" : @\"aaaaaaaaaaaaaa\",\n" 7869 " @\"aaaaaaaaaaaaaaaaa\",\n" 7870 " @\"aaaaaaaaaaaaaaaaa\",\n" 7871 " @\"aaaaaaaaaaaaaaaaa\",\n" 7872 "];"); 7873 verifyFormat( 7874 "NSArray *some_variable = @[\n" 7875 " aaaa == bbbbbbbbbbb ? @\"aaaaaaaaaaaa\" : @\"aaaaaaaaaaaaaa\",\n" 7876 " @\"aaaaaaaaaaaaaaaa\", @\"aaaaaaaaaaaaaaaa\", @\"aaaaaaaaaaaaaaaa\"\n" 7877 "];"); 7878 verifyFormat("NSArray *some_variable = @[\n" 7879 " @\"aaaaaaaaaaaaaaaaa\",\n" 7880 " @\"aaaaaaaaaaaaaaaaa\",\n" 7881 " @\"aaaaaaaaaaaaaaaaa\",\n" 7882 " @\"aaaaaaaaaaaaaaaaa\",\n" 7883 "];"); 7884 verifyFormat("NSArray *array = @[\n" 7885 " @\"a\",\n" 7886 " @\"a\",\n" // Trailing comma -> one per line. 7887 "];"); 7888 7889 // We should try to be robust in case someone forgets the "@". 7890 verifyFormat("NSArray *some_variable = [\n" 7891 " @\"aaaaaaaaaaaaaaaaa\",\n" 7892 " @\"aaaaaaaaaaaaaaaaa\",\n" 7893 " @\"aaaaaaaaaaaaaaaaa\",\n" 7894 " @\"aaaaaaaaaaaaaaaaa\",\n" 7895 "];"); 7896 verifyFormat( 7897 "- (NSAttributedString *)attributedStringForSegment:(NSUInteger)segment\n" 7898 " index:(NSUInteger)index\n" 7899 " nonDigitAttributes:\n" 7900 " (NSDictionary *)noDigitAttributes;"); 7901 verifyFormat("[someFunction someLooooooooooooongParameter:@[\n" 7902 " NSBundle.mainBundle.infoDictionary[@\"a\"]\n" 7903 "]];"); 7904 } 7905 7906 TEST_F(FormatTest, BreaksStringLiterals) { 7907 EXPECT_EQ("\"some text \"\n" 7908 "\"other\";", 7909 format("\"some text other\";", getLLVMStyleWithColumns(12))); 7910 EXPECT_EQ("\"some text \"\n" 7911 "\"other\";", 7912 format("\\\n\"some text other\";", getLLVMStyleWithColumns(12))); 7913 EXPECT_EQ( 7914 "#define A \\\n" 7915 " \"some \" \\\n" 7916 " \"text \" \\\n" 7917 " \"other\";", 7918 format("#define A \"some text other\";", getLLVMStyleWithColumns(12))); 7919 EXPECT_EQ( 7920 "#define A \\\n" 7921 " \"so \" \\\n" 7922 " \"text \" \\\n" 7923 " \"other\";", 7924 format("#define A \"so text other\";", getLLVMStyleWithColumns(12))); 7925 7926 EXPECT_EQ("\"some text\"", 7927 format("\"some text\"", getLLVMStyleWithColumns(1))); 7928 EXPECT_EQ("\"some text\"", 7929 format("\"some text\"", getLLVMStyleWithColumns(11))); 7930 EXPECT_EQ("\"some \"\n" 7931 "\"text\"", 7932 format("\"some text\"", getLLVMStyleWithColumns(10))); 7933 EXPECT_EQ("\"some \"\n" 7934 "\"text\"", 7935 format("\"some text\"", getLLVMStyleWithColumns(7))); 7936 EXPECT_EQ("\"some\"\n" 7937 "\" tex\"\n" 7938 "\"t\"", 7939 format("\"some text\"", getLLVMStyleWithColumns(6))); 7940 EXPECT_EQ("\"some\"\n" 7941 "\" tex\"\n" 7942 "\" and\"", 7943 format("\"some tex and\"", getLLVMStyleWithColumns(6))); 7944 EXPECT_EQ("\"some\"\n" 7945 "\"/tex\"\n" 7946 "\"/and\"", 7947 format("\"some/tex/and\"", getLLVMStyleWithColumns(6))); 7948 7949 EXPECT_EQ("variable =\n" 7950 " \"long string \"\n" 7951 " \"literal\";", 7952 format("variable = \"long string literal\";", 7953 getLLVMStyleWithColumns(20))); 7954 7955 EXPECT_EQ("variable = f(\n" 7956 " \"long string \"\n" 7957 " \"literal\",\n" 7958 " short,\n" 7959 " loooooooooooooooooooong);", 7960 format("variable = f(\"long string literal\", short, " 7961 "loooooooooooooooooooong);", 7962 getLLVMStyleWithColumns(20))); 7963 7964 EXPECT_EQ( 7965 "f(g(\"long string \"\n" 7966 " \"literal\"),\n" 7967 " b);", 7968 format("f(g(\"long string literal\"), b);", getLLVMStyleWithColumns(20))); 7969 EXPECT_EQ("f(g(\"long string \"\n" 7970 " \"literal\",\n" 7971 " a),\n" 7972 " b);", 7973 format("f(g(\"long string literal\", a), b);", 7974 getLLVMStyleWithColumns(20))); 7975 EXPECT_EQ( 7976 "f(\"one two\".split(\n" 7977 " variable));", 7978 format("f(\"one two\".split(variable));", getLLVMStyleWithColumns(20))); 7979 EXPECT_EQ("f(\"one two three four five six \"\n" 7980 " \"seven\".split(\n" 7981 " really_looooong_variable));", 7982 format("f(\"one two three four five six seven\"." 7983 "split(really_looooong_variable));", 7984 getLLVMStyleWithColumns(33))); 7985 7986 EXPECT_EQ("f(\"some \"\n" 7987 " \"text\",\n" 7988 " other);", 7989 format("f(\"some text\", other);", getLLVMStyleWithColumns(10))); 7990 7991 // Only break as a last resort. 7992 verifyFormat( 7993 "aaaaaaaaaaaaaaaaaaaa(\n" 7994 " aaaaaaaaaaaaaaaaaaaa,\n" 7995 " aaaaaa(\"aaa aaaaa aaa aaa aaaaa aaa aaaaa aaa aaa aaaaaa\"));"); 7996 7997 EXPECT_EQ("\"splitmea\"\n" 7998 "\"trandomp\"\n" 7999 "\"oint\"", 8000 format("\"splitmeatrandompoint\"", getLLVMStyleWithColumns(10))); 8001 8002 EXPECT_EQ("\"split/\"\n" 8003 "\"pathat/\"\n" 8004 "\"slashes\"", 8005 format("\"split/pathat/slashes\"", getLLVMStyleWithColumns(10))); 8006 8007 EXPECT_EQ("\"split/\"\n" 8008 "\"pathat/\"\n" 8009 "\"slashes\"", 8010 format("\"split/pathat/slashes\"", getLLVMStyleWithColumns(10))); 8011 EXPECT_EQ("\"split at \"\n" 8012 "\"spaces/at/\"\n" 8013 "\"slashes.at.any$\"\n" 8014 "\"non-alphanumeric%\"\n" 8015 "\"1111111111characte\"\n" 8016 "\"rs\"", 8017 format("\"split at " 8018 "spaces/at/" 8019 "slashes.at." 8020 "any$non-" 8021 "alphanumeric%" 8022 "1111111111characte" 8023 "rs\"", 8024 getLLVMStyleWithColumns(20))); 8025 8026 // Verify that splitting the strings understands 8027 // Style::AlwaysBreakBeforeMultilineStrings. 8028 EXPECT_EQ( 8029 "aaaaaaaaaaaa(\n" 8030 " \"aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaa \"\n" 8031 " \"aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaa\");", 8032 format("aaaaaaaaaaaa(\"aaaaaaaaaaaaaaaaaaaaaaaaaa " 8033 "aaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaa " 8034 "aaaaaaaaaaaaaaaaaaaaaa\");", 8035 getGoogleStyle())); 8036 EXPECT_EQ("return \"aaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaa \"\n" 8037 " \"aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaa\";", 8038 format("return \"aaaaaaaaaaaaaaaaaaaaaa " 8039 "aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaa " 8040 "aaaaaaaaaaaaaaaaaaaaaa\";", 8041 getGoogleStyle())); 8042 EXPECT_EQ("llvm::outs() << \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa \"\n" 8043 " \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\";", 8044 format("llvm::outs() << " 8045 "\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaa" 8046 "aaaaaaaaaaaaaaaaaaa\";")); 8047 EXPECT_EQ("ffff(\n" 8048 " {\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa \"\n" 8049 " \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"});", 8050 format("ffff({\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa " 8051 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"});", 8052 getGoogleStyle())); 8053 8054 FormatStyle Style = getLLVMStyleWithColumns(12); 8055 Style.BreakStringLiterals = false; 8056 EXPECT_EQ("\"some text other\";", format("\"some text other\";", Style)); 8057 8058 FormatStyle AlignLeft = getLLVMStyleWithColumns(12); 8059 AlignLeft.AlignEscapedNewlinesLeft = true; 8060 EXPECT_EQ("#define A \\\n" 8061 " \"some \" \\\n" 8062 " \"text \" \\\n" 8063 " \"other\";", 8064 format("#define A \"some text other\";", AlignLeft)); 8065 } 8066 8067 TEST_F(FormatTest, FullyRemoveEmptyLines) { 8068 FormatStyle NoEmptyLines = getLLVMStyleWithColumns(80); 8069 NoEmptyLines.MaxEmptyLinesToKeep = 0; 8070 EXPECT_EQ("int i = a(b());", 8071 format("int i=a(\n\n b(\n\n\n )\n\n);", NoEmptyLines)); 8072 } 8073 8074 TEST_F(FormatTest, BreaksStringLiteralsWithTabs) { 8075 EXPECT_EQ( 8076 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" 8077 "(\n" 8078 " \"x\t\");", 8079 format("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" 8080 "aaaaaaa(" 8081 "\"x\t\");")); 8082 } 8083 8084 TEST_F(FormatTest, BreaksWideAndNSStringLiterals) { 8085 EXPECT_EQ( 8086 "u8\"utf8 string \"\n" 8087 "u8\"literal\";", 8088 format("u8\"utf8 string literal\";", getGoogleStyleWithColumns(16))); 8089 EXPECT_EQ( 8090 "u\"utf16 string \"\n" 8091 "u\"literal\";", 8092 format("u\"utf16 string literal\";", getGoogleStyleWithColumns(16))); 8093 EXPECT_EQ( 8094 "U\"utf32 string \"\n" 8095 "U\"literal\";", 8096 format("U\"utf32 string literal\";", getGoogleStyleWithColumns(16))); 8097 EXPECT_EQ("L\"wide string \"\n" 8098 "L\"literal\";", 8099 format("L\"wide string literal\";", getGoogleStyleWithColumns(16))); 8100 EXPECT_EQ("@\"NSString \"\n" 8101 "@\"literal\";", 8102 format("@\"NSString literal\";", getGoogleStyleWithColumns(19))); 8103 8104 // This input makes clang-format try to split the incomplete unicode escape 8105 // sequence, which used to lead to a crasher. 8106 verifyNoCrash( 8107 "aaaaaaaaaaaaaaaaaaaa = L\"\\udff\"'; // aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 8108 getLLVMStyleWithColumns(60)); 8109 } 8110 8111 TEST_F(FormatTest, DoesNotBreakRawStringLiterals) { 8112 FormatStyle Style = getGoogleStyleWithColumns(15); 8113 EXPECT_EQ("R\"x(raw literal)x\";", format("R\"x(raw literal)x\";", Style)); 8114 EXPECT_EQ("uR\"x(raw literal)x\";", format("uR\"x(raw literal)x\";", Style)); 8115 EXPECT_EQ("LR\"x(raw literal)x\";", format("LR\"x(raw literal)x\";", Style)); 8116 EXPECT_EQ("UR\"x(raw literal)x\";", format("UR\"x(raw literal)x\";", Style)); 8117 EXPECT_EQ("u8R\"x(raw literal)x\";", 8118 format("u8R\"x(raw literal)x\";", Style)); 8119 } 8120 8121 TEST_F(FormatTest, BreaksStringLiteralsWithin_TMacro) { 8122 FormatStyle Style = getLLVMStyleWithColumns(20); 8123 EXPECT_EQ( 8124 "_T(\"aaaaaaaaaaaaaa\")\n" 8125 "_T(\"aaaaaaaaaaaaaa\")\n" 8126 "_T(\"aaaaaaaaaaaa\")", 8127 format(" _T(\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\")", Style)); 8128 EXPECT_EQ("f(x, _T(\"aaaaaaaaa\")\n" 8129 " _T(\"aaaaaa\"),\n" 8130 " z);", 8131 format("f(x, _T(\"aaaaaaaaaaaaaaa\"), z);", Style)); 8132 8133 // FIXME: Handle embedded spaces in one iteration. 8134 // EXPECT_EQ("_T(\"aaaaaaaaaaaaa\")\n" 8135 // "_T(\"aaaaaaaaaaaaa\")\n" 8136 // "_T(\"aaaaaaaaaaaaa\")\n" 8137 // "_T(\"a\")", 8138 // format(" _T ( \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\" )", 8139 // getLLVMStyleWithColumns(20))); 8140 EXPECT_EQ( 8141 "_T ( \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\" )", 8142 format(" _T ( \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\" )", Style)); 8143 EXPECT_EQ("f(\n" 8144 "#if !TEST\n" 8145 " _T(\"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXn\")\n" 8146 "#endif\n" 8147 " );", 8148 format("f(\n" 8149 "#if !TEST\n" 8150 "_T(\"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXn\")\n" 8151 "#endif\n" 8152 ");")); 8153 EXPECT_EQ("f(\n" 8154 "\n" 8155 " _T(\"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXn\"));", 8156 format("f(\n" 8157 "\n" 8158 "_T(\"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXn\"));")); 8159 } 8160 8161 TEST_F(FormatTest, DontSplitStringLiteralsWithEscapedNewlines) { 8162 EXPECT_EQ( 8163 "aaaaaaaaaaa = \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 8164 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 8165 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\";", 8166 format("aaaaaaaaaaa = \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 8167 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 8168 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\";")); 8169 } 8170 8171 TEST_F(FormatTest, CountsCharactersInMultilineRawStringLiterals) { 8172 EXPECT_EQ("f(g(R\"x(raw literal)x\", a), b);", 8173 format("f(g(R\"x(raw literal)x\", a), b);", getGoogleStyle())); 8174 EXPECT_EQ("fffffffffff(g(R\"x(\n" 8175 "multiline raw string literal xxxxxxxxxxxxxx\n" 8176 ")x\",\n" 8177 " a),\n" 8178 " b);", 8179 format("fffffffffff(g(R\"x(\n" 8180 "multiline raw string literal xxxxxxxxxxxxxx\n" 8181 ")x\", a), b);", 8182 getGoogleStyleWithColumns(20))); 8183 EXPECT_EQ("fffffffffff(\n" 8184 " g(R\"x(qqq\n" 8185 "multiline raw string literal xxxxxxxxxxxxxx\n" 8186 ")x\",\n" 8187 " a),\n" 8188 " b);", 8189 format("fffffffffff(g(R\"x(qqq\n" 8190 "multiline raw string literal xxxxxxxxxxxxxx\n" 8191 ")x\", a), b);", 8192 getGoogleStyleWithColumns(20))); 8193 8194 EXPECT_EQ("fffffffffff(R\"x(\n" 8195 "multiline raw string literal xxxxxxxxxxxxxx\n" 8196 ")x\");", 8197 format("fffffffffff(R\"x(\n" 8198 "multiline raw string literal xxxxxxxxxxxxxx\n" 8199 ")x\");", 8200 getGoogleStyleWithColumns(20))); 8201 EXPECT_EQ("fffffffffff(R\"x(\n" 8202 "multiline raw string literal xxxxxxxxxxxxxx\n" 8203 ")x\" + bbbbbb);", 8204 format("fffffffffff(R\"x(\n" 8205 "multiline raw string literal xxxxxxxxxxxxxx\n" 8206 ")x\" + bbbbbb);", 8207 getGoogleStyleWithColumns(20))); 8208 EXPECT_EQ("fffffffffff(\n" 8209 " R\"x(\n" 8210 "multiline raw string literal xxxxxxxxxxxxxx\n" 8211 ")x\" +\n" 8212 " bbbbbb);", 8213 format("fffffffffff(\n" 8214 " R\"x(\n" 8215 "multiline raw string literal xxxxxxxxxxxxxx\n" 8216 ")x\" + bbbbbb);", 8217 getGoogleStyleWithColumns(20))); 8218 } 8219 8220 TEST_F(FormatTest, SkipsUnknownStringLiterals) { 8221 verifyFormat("string a = \"unterminated;"); 8222 EXPECT_EQ("function(\"unterminated,\n" 8223 " OtherParameter);", 8224 format("function( \"unterminated,\n" 8225 " OtherParameter);")); 8226 } 8227 8228 TEST_F(FormatTest, DoesNotTryToParseUDLiteralsInPreCpp11Code) { 8229 FormatStyle Style = getLLVMStyle(); 8230 Style.Standard = FormatStyle::LS_Cpp03; 8231 EXPECT_EQ("#define x(_a) printf(\"foo\" _a);", 8232 format("#define x(_a) printf(\"foo\"_a);", Style)); 8233 } 8234 8235 TEST_F(FormatTest, UnderstandsCpp1y) { verifyFormat("int bi{1'000'000};"); } 8236 8237 TEST_F(FormatTest, BreakStringLiteralsBeforeUnbreakableTokenSequence) { 8238 EXPECT_EQ("someFunction(\"aaabbbcccd\"\n" 8239 " \"ddeeefff\");", 8240 format("someFunction(\"aaabbbcccdddeeefff\");", 8241 getLLVMStyleWithColumns(25))); 8242 EXPECT_EQ("someFunction1234567890(\n" 8243 " \"aaabbbcccdddeeefff\");", 8244 format("someFunction1234567890(\"aaabbbcccdddeeefff\");", 8245 getLLVMStyleWithColumns(26))); 8246 EXPECT_EQ("someFunction1234567890(\n" 8247 " \"aaabbbcccdddeeeff\"\n" 8248 " \"f\");", 8249 format("someFunction1234567890(\"aaabbbcccdddeeefff\");", 8250 getLLVMStyleWithColumns(25))); 8251 EXPECT_EQ("someFunction1234567890(\n" 8252 " \"aaabbbcccdddeeeff\"\n" 8253 " \"f\");", 8254 format("someFunction1234567890(\"aaabbbcccdddeeefff\");", 8255 getLLVMStyleWithColumns(24))); 8256 EXPECT_EQ("someFunction(\"aaabbbcc \"\n" 8257 " \"ddde \"\n" 8258 " \"efff\");", 8259 format("someFunction(\"aaabbbcc ddde efff\");", 8260 getLLVMStyleWithColumns(25))); 8261 EXPECT_EQ("someFunction(\"aaabbbccc \"\n" 8262 " \"ddeeefff\");", 8263 format("someFunction(\"aaabbbccc ddeeefff\");", 8264 getLLVMStyleWithColumns(25))); 8265 EXPECT_EQ("someFunction1234567890(\n" 8266 " \"aaabb \"\n" 8267 " \"cccdddeeefff\");", 8268 format("someFunction1234567890(\"aaabb cccdddeeefff\");", 8269 getLLVMStyleWithColumns(25))); 8270 EXPECT_EQ("#define A \\\n" 8271 " string s = \\\n" 8272 " \"123456789\" \\\n" 8273 " \"0\"; \\\n" 8274 " int i;", 8275 format("#define A string s = \"1234567890\"; int i;", 8276 getLLVMStyleWithColumns(20))); 8277 // FIXME: Put additional penalties on breaking at non-whitespace locations. 8278 EXPECT_EQ("someFunction(\"aaabbbcc \"\n" 8279 " \"dddeeeff\"\n" 8280 " \"f\");", 8281 format("someFunction(\"aaabbbcc dddeeefff\");", 8282 getLLVMStyleWithColumns(25))); 8283 } 8284 8285 TEST_F(FormatTest, DoNotBreakStringLiteralsInEscapeSequence) { 8286 EXPECT_EQ("\"\\a\"", format("\"\\a\"", getLLVMStyleWithColumns(3))); 8287 EXPECT_EQ("\"\\\"", format("\"\\\"", getLLVMStyleWithColumns(2))); 8288 EXPECT_EQ("\"test\"\n" 8289 "\"\\n\"", 8290 format("\"test\\n\"", getLLVMStyleWithColumns(7))); 8291 EXPECT_EQ("\"tes\\\\\"\n" 8292 "\"n\"", 8293 format("\"tes\\\\n\"", getLLVMStyleWithColumns(7))); 8294 EXPECT_EQ("\"\\\\\\\\\"\n" 8295 "\"\\n\"", 8296 format("\"\\\\\\\\\\n\"", getLLVMStyleWithColumns(7))); 8297 EXPECT_EQ("\"\\uff01\"", format("\"\\uff01\"", getLLVMStyleWithColumns(7))); 8298 EXPECT_EQ("\"\\uff01\"\n" 8299 "\"test\"", 8300 format("\"\\uff01test\"", getLLVMStyleWithColumns(8))); 8301 EXPECT_EQ("\"\\Uff01ff02\"", 8302 format("\"\\Uff01ff02\"", getLLVMStyleWithColumns(11))); 8303 EXPECT_EQ("\"\\x000000000001\"\n" 8304 "\"next\"", 8305 format("\"\\x000000000001next\"", getLLVMStyleWithColumns(16))); 8306 EXPECT_EQ("\"\\x000000000001next\"", 8307 format("\"\\x000000000001next\"", getLLVMStyleWithColumns(15))); 8308 EXPECT_EQ("\"\\x000000000001\"", 8309 format("\"\\x000000000001\"", getLLVMStyleWithColumns(7))); 8310 EXPECT_EQ("\"test\"\n" 8311 "\"\\000000\"\n" 8312 "\"000001\"", 8313 format("\"test\\000000000001\"", getLLVMStyleWithColumns(9))); 8314 EXPECT_EQ("\"test\\000\"\n" 8315 "\"00000000\"\n" 8316 "\"1\"", 8317 format("\"test\\000000000001\"", getLLVMStyleWithColumns(10))); 8318 } 8319 8320 TEST_F(FormatTest, DoNotCreateUnreasonableUnwrappedLines) { 8321 verifyFormat("void f() {\n" 8322 " return g() {}\n" 8323 " void h() {}"); 8324 verifyFormat("int a[] = {void forgot_closing_brace(){f();\n" 8325 "g();\n" 8326 "}"); 8327 } 8328 8329 TEST_F(FormatTest, DoNotPrematurelyEndUnwrappedLineForReturnStatements) { 8330 verifyFormat( 8331 "void f() { return C{param1, param2}.SomeCall(param1, param2); }"); 8332 } 8333 8334 TEST_F(FormatTest, FormatsClosingBracesInEmptyNestedBlocks) { 8335 verifyFormat("class X {\n" 8336 " void f() {\n" 8337 " }\n" 8338 "};", 8339 getLLVMStyleWithColumns(12)); 8340 } 8341 8342 TEST_F(FormatTest, ConfigurableIndentWidth) { 8343 FormatStyle EightIndent = getLLVMStyleWithColumns(18); 8344 EightIndent.IndentWidth = 8; 8345 EightIndent.ContinuationIndentWidth = 8; 8346 verifyFormat("void f() {\n" 8347 " someFunction();\n" 8348 " if (true) {\n" 8349 " f();\n" 8350 " }\n" 8351 "}", 8352 EightIndent); 8353 verifyFormat("class X {\n" 8354 " void f() {\n" 8355 " }\n" 8356 "};", 8357 EightIndent); 8358 verifyFormat("int x[] = {\n" 8359 " call(),\n" 8360 " call()};", 8361 EightIndent); 8362 } 8363 8364 TEST_F(FormatTest, ConfigurableFunctionDeclarationIndentAfterType) { 8365 verifyFormat("double\n" 8366 "f();", 8367 getLLVMStyleWithColumns(8)); 8368 } 8369 8370 TEST_F(FormatTest, ConfigurableUseOfTab) { 8371 FormatStyle Tab = getLLVMStyleWithColumns(42); 8372 Tab.IndentWidth = 8; 8373 Tab.UseTab = FormatStyle::UT_Always; 8374 Tab.AlignEscapedNewlinesLeft = true; 8375 8376 EXPECT_EQ("if (aaaaaaaa && // q\n" 8377 " bb)\t\t// w\n" 8378 "\t;", 8379 format("if (aaaaaaaa &&// q\n" 8380 "bb)// w\n" 8381 ";", 8382 Tab)); 8383 EXPECT_EQ("if (aaa && bbb) // w\n" 8384 "\t;", 8385 format("if(aaa&&bbb)// w\n" 8386 ";", 8387 Tab)); 8388 8389 verifyFormat("class X {\n" 8390 "\tvoid f() {\n" 8391 "\t\tsomeFunction(parameter1,\n" 8392 "\t\t\t parameter2);\n" 8393 "\t}\n" 8394 "};", 8395 Tab); 8396 verifyFormat("#define A \\\n" 8397 "\tvoid f() { \\\n" 8398 "\t\tsomeFunction( \\\n" 8399 "\t\t parameter1, \\\n" 8400 "\t\t parameter2); \\\n" 8401 "\t}", 8402 Tab); 8403 8404 Tab.TabWidth = 4; 8405 Tab.IndentWidth = 8; 8406 verifyFormat("class TabWidth4Indent8 {\n" 8407 "\t\tvoid f() {\n" 8408 "\t\t\t\tsomeFunction(parameter1,\n" 8409 "\t\t\t\t\t\t\t parameter2);\n" 8410 "\t\t}\n" 8411 "};", 8412 Tab); 8413 8414 Tab.TabWidth = 4; 8415 Tab.IndentWidth = 4; 8416 verifyFormat("class TabWidth4Indent4 {\n" 8417 "\tvoid f() {\n" 8418 "\t\tsomeFunction(parameter1,\n" 8419 "\t\t\t\t\t parameter2);\n" 8420 "\t}\n" 8421 "};", 8422 Tab); 8423 8424 Tab.TabWidth = 8; 8425 Tab.IndentWidth = 4; 8426 verifyFormat("class TabWidth8Indent4 {\n" 8427 " void f() {\n" 8428 "\tsomeFunction(parameter1,\n" 8429 "\t\t parameter2);\n" 8430 " }\n" 8431 "};", 8432 Tab); 8433 8434 Tab.TabWidth = 8; 8435 Tab.IndentWidth = 8; 8436 EXPECT_EQ("/*\n" 8437 "\t a\t\tcomment\n" 8438 "\t in multiple lines\n" 8439 " */", 8440 format(" /*\t \t \n" 8441 " \t \t a\t\tcomment\t \t\n" 8442 " \t \t in multiple lines\t\n" 8443 " \t */", 8444 Tab)); 8445 8446 Tab.UseTab = FormatStyle::UT_ForIndentation; 8447 verifyFormat("{\n" 8448 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8449 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8450 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8451 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8452 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8453 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8454 "};", 8455 Tab); 8456 verifyFormat("enum AA {\n" 8457 "\ta1, // Force multiple lines\n" 8458 "\ta2,\n" 8459 "\ta3\n" 8460 "};", 8461 Tab); 8462 EXPECT_EQ("if (aaaaaaaa && // q\n" 8463 " bb) // w\n" 8464 "\t;", 8465 format("if (aaaaaaaa &&// q\n" 8466 "bb)// w\n" 8467 ";", 8468 Tab)); 8469 verifyFormat("class X {\n" 8470 "\tvoid f() {\n" 8471 "\t\tsomeFunction(parameter1,\n" 8472 "\t\t parameter2);\n" 8473 "\t}\n" 8474 "};", 8475 Tab); 8476 verifyFormat("{\n" 8477 "\tQ(\n" 8478 "\t {\n" 8479 "\t\t int a;\n" 8480 "\t\t someFunction(aaaaaaaa,\n" 8481 "\t\t bbbbbbb);\n" 8482 "\t },\n" 8483 "\t p);\n" 8484 "}", 8485 Tab); 8486 EXPECT_EQ("{\n" 8487 "\t/* aaaa\n" 8488 "\t bbbb */\n" 8489 "}", 8490 format("{\n" 8491 "/* aaaa\n" 8492 " bbbb */\n" 8493 "}", 8494 Tab)); 8495 EXPECT_EQ("{\n" 8496 "\t/*\n" 8497 "\t aaaaaaaaaaaaaaaaaaaaaaaaaa\n" 8498 "\t bbbbbbbbbbbbb\n" 8499 "\t*/\n" 8500 "}", 8501 format("{\n" 8502 "/*\n" 8503 " aaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbb\n" 8504 "*/\n" 8505 "}", 8506 Tab)); 8507 EXPECT_EQ("{\n" 8508 "\t// aaaaaaaaaaaaaaaaaaaaaaaaaa\n" 8509 "\t// bbbbbbbbbbbbb\n" 8510 "}", 8511 format("{\n" 8512 "\t// aaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbb\n" 8513 "}", 8514 Tab)); 8515 EXPECT_EQ("{\n" 8516 "\t/*\n" 8517 "\t aaaaaaaaaaaaaaaaaaaaaaaaaa\n" 8518 "\t bbbbbbbbbbbbb\n" 8519 "\t*/\n" 8520 "}", 8521 format("{\n" 8522 "\t/*\n" 8523 "\t aaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbb\n" 8524 "\t*/\n" 8525 "}", 8526 Tab)); 8527 EXPECT_EQ("{\n" 8528 "\t/*\n" 8529 "\n" 8530 "\t*/\n" 8531 "}", 8532 format("{\n" 8533 "\t/*\n" 8534 "\n" 8535 "\t*/\n" 8536 "}", 8537 Tab)); 8538 EXPECT_EQ("{\n" 8539 "\t/*\n" 8540 " asdf\n" 8541 "\t*/\n" 8542 "}", 8543 format("{\n" 8544 "\t/*\n" 8545 " asdf\n" 8546 "\t*/\n" 8547 "}", 8548 Tab)); 8549 8550 Tab.UseTab = FormatStyle::UT_Never; 8551 EXPECT_EQ("/*\n" 8552 " a\t\tcomment\n" 8553 " in multiple lines\n" 8554 " */", 8555 format(" /*\t \t \n" 8556 " \t \t a\t\tcomment\t \t\n" 8557 " \t \t in multiple lines\t\n" 8558 " \t */", 8559 Tab)); 8560 EXPECT_EQ("/* some\n" 8561 " comment */", 8562 format(" \t \t /* some\n" 8563 " \t \t comment */", 8564 Tab)); 8565 EXPECT_EQ("int a; /* some\n" 8566 " comment */", 8567 format(" \t \t int a; /* some\n" 8568 " \t \t comment */", 8569 Tab)); 8570 8571 EXPECT_EQ("int a; /* some\n" 8572 "comment */", 8573 format(" \t \t int\ta; /* some\n" 8574 " \t \t comment */", 8575 Tab)); 8576 EXPECT_EQ("f(\"\t\t\"); /* some\n" 8577 " comment */", 8578 format(" \t \t f(\"\t\t\"); /* some\n" 8579 " \t \t comment */", 8580 Tab)); 8581 EXPECT_EQ("{\n" 8582 " /*\n" 8583 " * Comment\n" 8584 " */\n" 8585 " int i;\n" 8586 "}", 8587 format("{\n" 8588 "\t/*\n" 8589 "\t * Comment\n" 8590 "\t */\n" 8591 "\t int i;\n" 8592 "}")); 8593 8594 Tab.UseTab = FormatStyle::UT_ForContinuationAndIndentation; 8595 Tab.TabWidth = 8; 8596 Tab.IndentWidth = 8; 8597 EXPECT_EQ("if (aaaaaaaa && // q\n" 8598 " bb) // w\n" 8599 "\t;", 8600 format("if (aaaaaaaa &&// q\n" 8601 "bb)// w\n" 8602 ";", 8603 Tab)); 8604 EXPECT_EQ("if (aaa && bbb) // w\n" 8605 "\t;", 8606 format("if(aaa&&bbb)// w\n" 8607 ";", 8608 Tab)); 8609 verifyFormat("class X {\n" 8610 "\tvoid f() {\n" 8611 "\t\tsomeFunction(parameter1,\n" 8612 "\t\t\t parameter2);\n" 8613 "\t}\n" 8614 "};", 8615 Tab); 8616 verifyFormat("#define A \\\n" 8617 "\tvoid f() { \\\n" 8618 "\t\tsomeFunction( \\\n" 8619 "\t\t parameter1, \\\n" 8620 "\t\t parameter2); \\\n" 8621 "\t}", 8622 Tab); 8623 Tab.TabWidth = 4; 8624 Tab.IndentWidth = 8; 8625 verifyFormat("class TabWidth4Indent8 {\n" 8626 "\t\tvoid f() {\n" 8627 "\t\t\t\tsomeFunction(parameter1,\n" 8628 "\t\t\t\t\t\t\t parameter2);\n" 8629 "\t\t}\n" 8630 "};", 8631 Tab); 8632 Tab.TabWidth = 4; 8633 Tab.IndentWidth = 4; 8634 verifyFormat("class TabWidth4Indent4 {\n" 8635 "\tvoid f() {\n" 8636 "\t\tsomeFunction(parameter1,\n" 8637 "\t\t\t\t\t parameter2);\n" 8638 "\t}\n" 8639 "};", 8640 Tab); 8641 Tab.TabWidth = 8; 8642 Tab.IndentWidth = 4; 8643 verifyFormat("class TabWidth8Indent4 {\n" 8644 " void f() {\n" 8645 "\tsomeFunction(parameter1,\n" 8646 "\t\t parameter2);\n" 8647 " }\n" 8648 "};", 8649 Tab); 8650 Tab.TabWidth = 8; 8651 Tab.IndentWidth = 8; 8652 EXPECT_EQ("/*\n" 8653 "\t a\t\tcomment\n" 8654 "\t in multiple lines\n" 8655 " */", 8656 format(" /*\t \t \n" 8657 " \t \t a\t\tcomment\t \t\n" 8658 " \t \t in multiple lines\t\n" 8659 " \t */", 8660 Tab)); 8661 verifyFormat("{\n" 8662 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8663 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8664 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8665 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8666 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8667 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8668 "};", 8669 Tab); 8670 verifyFormat("enum AA {\n" 8671 "\ta1, // Force multiple lines\n" 8672 "\ta2,\n" 8673 "\ta3\n" 8674 "};", 8675 Tab); 8676 EXPECT_EQ("if (aaaaaaaa && // q\n" 8677 " bb) // w\n" 8678 "\t;", 8679 format("if (aaaaaaaa &&// q\n" 8680 "bb)// w\n" 8681 ";", 8682 Tab)); 8683 verifyFormat("class X {\n" 8684 "\tvoid f() {\n" 8685 "\t\tsomeFunction(parameter1,\n" 8686 "\t\t\t parameter2);\n" 8687 "\t}\n" 8688 "};", 8689 Tab); 8690 verifyFormat("{\n" 8691 "\tQ(\n" 8692 "\t {\n" 8693 "\t\t int a;\n" 8694 "\t\t someFunction(aaaaaaaa,\n" 8695 "\t\t\t\t bbbbbbb);\n" 8696 "\t },\n" 8697 "\t p);\n" 8698 "}", 8699 Tab); 8700 EXPECT_EQ("{\n" 8701 "\t/* aaaa\n" 8702 "\t bbbb */\n" 8703 "}", 8704 format("{\n" 8705 "/* aaaa\n" 8706 " bbbb */\n" 8707 "}", 8708 Tab)); 8709 EXPECT_EQ("{\n" 8710 "\t/*\n" 8711 "\t aaaaaaaaaaaaaaaaaaaaaaaaaa\n" 8712 "\t bbbbbbbbbbbbb\n" 8713 "\t*/\n" 8714 "}", 8715 format("{\n" 8716 "/*\n" 8717 " aaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbb\n" 8718 "*/\n" 8719 "}", 8720 Tab)); 8721 EXPECT_EQ("{\n" 8722 "\t// aaaaaaaaaaaaaaaaaaaaaaaaaa\n" 8723 "\t// bbbbbbbbbbbbb\n" 8724 "}", 8725 format("{\n" 8726 "\t// aaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbb\n" 8727 "}", 8728 Tab)); 8729 EXPECT_EQ("{\n" 8730 "\t/*\n" 8731 "\t aaaaaaaaaaaaaaaaaaaaaaaaaa\n" 8732 "\t bbbbbbbbbbbbb\n" 8733 "\t*/\n" 8734 "}", 8735 format("{\n" 8736 "\t/*\n" 8737 "\t aaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbb\n" 8738 "\t*/\n" 8739 "}", 8740 Tab)); 8741 EXPECT_EQ("{\n" 8742 "\t/*\n" 8743 "\n" 8744 "\t*/\n" 8745 "}", 8746 format("{\n" 8747 "\t/*\n" 8748 "\n" 8749 "\t*/\n" 8750 "}", 8751 Tab)); 8752 EXPECT_EQ("{\n" 8753 "\t/*\n" 8754 " asdf\n" 8755 "\t*/\n" 8756 "}", 8757 format("{\n" 8758 "\t/*\n" 8759 " asdf\n" 8760 "\t*/\n" 8761 "}", 8762 Tab)); 8763 EXPECT_EQ("/*\n" 8764 "\t a\t\tcomment\n" 8765 "\t in multiple lines\n" 8766 " */", 8767 format(" /*\t \t \n" 8768 " \t \t a\t\tcomment\t \t\n" 8769 " \t \t in multiple lines\t\n" 8770 " \t */", 8771 Tab)); 8772 EXPECT_EQ("/* some\n" 8773 " comment */", 8774 format(" \t \t /* some\n" 8775 " \t \t comment */", 8776 Tab)); 8777 EXPECT_EQ("int a; /* some\n" 8778 " comment */", 8779 format(" \t \t int a; /* some\n" 8780 " \t \t comment */", 8781 Tab)); 8782 EXPECT_EQ("int a; /* some\n" 8783 "comment */", 8784 format(" \t \t int\ta; /* some\n" 8785 " \t \t comment */", 8786 Tab)); 8787 EXPECT_EQ("f(\"\t\t\"); /* some\n" 8788 " comment */", 8789 format(" \t \t f(\"\t\t\"); /* some\n" 8790 " \t \t comment */", 8791 Tab)); 8792 EXPECT_EQ("{\n" 8793 " /*\n" 8794 " * Comment\n" 8795 " */\n" 8796 " int i;\n" 8797 "}", 8798 format("{\n" 8799 "\t/*\n" 8800 "\t * Comment\n" 8801 "\t */\n" 8802 "\t int i;\n" 8803 "}")); 8804 Tab.AlignConsecutiveAssignments = true; 8805 Tab.AlignConsecutiveDeclarations = true; 8806 Tab.TabWidth = 4; 8807 Tab.IndentWidth = 4; 8808 verifyFormat("class Assign {\n" 8809 "\tvoid f() {\n" 8810 "\t\tint x = 123;\n" 8811 "\t\tint random = 4;\n" 8812 "\t\tstd::string alphabet =\n" 8813 "\t\t\t\"abcdefghijklmnopqrstuvwxyz\";\n" 8814 "\t}\n" 8815 "};", 8816 Tab); 8817 } 8818 8819 TEST_F(FormatTest, CalculatesOriginalColumn) { 8820 EXPECT_EQ("\"qqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 8821 "q\"; /* some\n" 8822 " comment */", 8823 format(" \"qqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 8824 "q\"; /* some\n" 8825 " comment */", 8826 getLLVMStyle())); 8827 EXPECT_EQ("// qqqqqqqqqqqqqqqqqqqqqqqqqq\n" 8828 "/* some\n" 8829 " comment */", 8830 format("// qqqqqqqqqqqqqqqqqqqqqqqqqq\n" 8831 " /* some\n" 8832 " comment */", 8833 getLLVMStyle())); 8834 EXPECT_EQ("// qqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 8835 "qqq\n" 8836 "/* some\n" 8837 " comment */", 8838 format("// qqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 8839 "qqq\n" 8840 " /* some\n" 8841 " comment */", 8842 getLLVMStyle())); 8843 EXPECT_EQ("inttt qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 8844 "wwww; /* some\n" 8845 " comment */", 8846 format(" inttt qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 8847 "wwww; /* some\n" 8848 " comment */", 8849 getLLVMStyle())); 8850 } 8851 8852 TEST_F(FormatTest, ConfigurableSpaceBeforeParens) { 8853 FormatStyle NoSpace = getLLVMStyle(); 8854 NoSpace.SpaceBeforeParens = FormatStyle::SBPO_Never; 8855 8856 verifyFormat("while(true)\n" 8857 " continue;", 8858 NoSpace); 8859 verifyFormat("for(;;)\n" 8860 " continue;", 8861 NoSpace); 8862 verifyFormat("if(true)\n" 8863 " f();\n" 8864 "else if(true)\n" 8865 " f();", 8866 NoSpace); 8867 verifyFormat("do {\n" 8868 " do_something();\n" 8869 "} while(something());", 8870 NoSpace); 8871 verifyFormat("switch(x) {\n" 8872 "default:\n" 8873 " break;\n" 8874 "}", 8875 NoSpace); 8876 verifyFormat("auto i = std::make_unique<int>(5);", NoSpace); 8877 verifyFormat("size_t x = sizeof(x);", NoSpace); 8878 verifyFormat("auto f(int x) -> decltype(x);", NoSpace); 8879 verifyFormat("int f(T x) noexcept(x.create());", NoSpace); 8880 verifyFormat("alignas(128) char a[128];", NoSpace); 8881 verifyFormat("size_t x = alignof(MyType);", NoSpace); 8882 verifyFormat("static_assert(sizeof(char) == 1, \"Impossible!\");", NoSpace); 8883 verifyFormat("int f() throw(Deprecated);", NoSpace); 8884 verifyFormat("typedef void (*cb)(int);", NoSpace); 8885 verifyFormat("T A::operator()();", NoSpace); 8886 verifyFormat("X A::operator++(T);", NoSpace); 8887 8888 FormatStyle Space = getLLVMStyle(); 8889 Space.SpaceBeforeParens = FormatStyle::SBPO_Always; 8890 8891 verifyFormat("int f ();", Space); 8892 verifyFormat("void f (int a, T b) {\n" 8893 " while (true)\n" 8894 " continue;\n" 8895 "}", 8896 Space); 8897 verifyFormat("if (true)\n" 8898 " f ();\n" 8899 "else if (true)\n" 8900 " f ();", 8901 Space); 8902 verifyFormat("do {\n" 8903 " do_something ();\n" 8904 "} while (something ());", 8905 Space); 8906 verifyFormat("switch (x) {\n" 8907 "default:\n" 8908 " break;\n" 8909 "}", 8910 Space); 8911 verifyFormat("A::A () : a (1) {}", Space); 8912 verifyFormat("void f () __attribute__ ((asdf));", Space); 8913 verifyFormat("*(&a + 1);\n" 8914 "&((&a)[1]);\n" 8915 "a[(b + c) * d];\n" 8916 "(((a + 1) * 2) + 3) * 4;", 8917 Space); 8918 verifyFormat("#define A(x) x", Space); 8919 verifyFormat("#define A (x) x", Space); 8920 verifyFormat("#if defined(x)\n" 8921 "#endif", 8922 Space); 8923 verifyFormat("auto i = std::make_unique<int> (5);", Space); 8924 verifyFormat("size_t x = sizeof (x);", Space); 8925 verifyFormat("auto f (int x) -> decltype (x);", Space); 8926 verifyFormat("int f (T x) noexcept (x.create ());", Space); 8927 verifyFormat("alignas (128) char a[128];", Space); 8928 verifyFormat("size_t x = alignof (MyType);", Space); 8929 verifyFormat("static_assert (sizeof (char) == 1, \"Impossible!\");", Space); 8930 verifyFormat("int f () throw (Deprecated);", Space); 8931 verifyFormat("typedef void (*cb) (int);", Space); 8932 verifyFormat("T A::operator() ();", Space); 8933 verifyFormat("X A::operator++ (T);", Space); 8934 } 8935 8936 TEST_F(FormatTest, ConfigurableSpacesInParentheses) { 8937 FormatStyle Spaces = getLLVMStyle(); 8938 8939 Spaces.SpacesInParentheses = true; 8940 verifyFormat("call( x, y, z );", Spaces); 8941 verifyFormat("call();", Spaces); 8942 verifyFormat("std::function<void( int, int )> callback;", Spaces); 8943 verifyFormat("void inFunction() { std::function<void( int, int )> fct; }", 8944 Spaces); 8945 verifyFormat("while ( (bool)1 )\n" 8946 " continue;", 8947 Spaces); 8948 verifyFormat("for ( ;; )\n" 8949 " continue;", 8950 Spaces); 8951 verifyFormat("if ( true )\n" 8952 " f();\n" 8953 "else if ( true )\n" 8954 " f();", 8955 Spaces); 8956 verifyFormat("do {\n" 8957 " do_something( (int)i );\n" 8958 "} while ( something() );", 8959 Spaces); 8960 verifyFormat("switch ( x ) {\n" 8961 "default:\n" 8962 " break;\n" 8963 "}", 8964 Spaces); 8965 8966 Spaces.SpacesInParentheses = false; 8967 Spaces.SpacesInCStyleCastParentheses = true; 8968 verifyFormat("Type *A = ( Type * )P;", Spaces); 8969 verifyFormat("Type *A = ( vector<Type *, int *> )P;", Spaces); 8970 verifyFormat("x = ( int32 )y;", Spaces); 8971 verifyFormat("int a = ( int )(2.0f);", Spaces); 8972 verifyFormat("#define AA(X) sizeof((( X * )NULL)->a)", Spaces); 8973 verifyFormat("my_int a = ( my_int )sizeof(int);", Spaces); 8974 verifyFormat("#define x (( int )-1)", Spaces); 8975 8976 // Run the first set of tests again with: 8977 Spaces.SpacesInParentheses = false; 8978 Spaces.SpaceInEmptyParentheses = true; 8979 Spaces.SpacesInCStyleCastParentheses = true; 8980 verifyFormat("call(x, y, z);", Spaces); 8981 verifyFormat("call( );", Spaces); 8982 verifyFormat("std::function<void(int, int)> callback;", Spaces); 8983 verifyFormat("while (( bool )1)\n" 8984 " continue;", 8985 Spaces); 8986 verifyFormat("for (;;)\n" 8987 " continue;", 8988 Spaces); 8989 verifyFormat("if (true)\n" 8990 " f( );\n" 8991 "else if (true)\n" 8992 " f( );", 8993 Spaces); 8994 verifyFormat("do {\n" 8995 " do_something(( int )i);\n" 8996 "} while (something( ));", 8997 Spaces); 8998 verifyFormat("switch (x) {\n" 8999 "default:\n" 9000 " break;\n" 9001 "}", 9002 Spaces); 9003 9004 // Run the first set of tests again with: 9005 Spaces.SpaceAfterCStyleCast = true; 9006 verifyFormat("call(x, y, z);", Spaces); 9007 verifyFormat("call( );", Spaces); 9008 verifyFormat("std::function<void(int, int)> callback;", Spaces); 9009 verifyFormat("while (( bool ) 1)\n" 9010 " continue;", 9011 Spaces); 9012 verifyFormat("for (;;)\n" 9013 " continue;", 9014 Spaces); 9015 verifyFormat("if (true)\n" 9016 " f( );\n" 9017 "else if (true)\n" 9018 " f( );", 9019 Spaces); 9020 verifyFormat("do {\n" 9021 " do_something(( int ) i);\n" 9022 "} while (something( ));", 9023 Spaces); 9024 verifyFormat("switch (x) {\n" 9025 "default:\n" 9026 " break;\n" 9027 "}", 9028 Spaces); 9029 9030 // Run subset of tests again with: 9031 Spaces.SpacesInCStyleCastParentheses = false; 9032 Spaces.SpaceAfterCStyleCast = true; 9033 verifyFormat("while ((bool) 1)\n" 9034 " continue;", 9035 Spaces); 9036 verifyFormat("do {\n" 9037 " do_something((int) i);\n" 9038 "} while (something( ));", 9039 Spaces); 9040 } 9041 9042 TEST_F(FormatTest, ConfigurableSpacesInSquareBrackets) { 9043 verifyFormat("int a[5];"); 9044 verifyFormat("a[3] += 42;"); 9045 9046 FormatStyle Spaces = getLLVMStyle(); 9047 Spaces.SpacesInSquareBrackets = true; 9048 // Lambdas unchanged. 9049 verifyFormat("int c = []() -> int { return 2; }();\n", Spaces); 9050 verifyFormat("return [i, args...] {};", Spaces); 9051 9052 // Not lambdas. 9053 verifyFormat("int a[ 5 ];", Spaces); 9054 verifyFormat("a[ 3 ] += 42;", Spaces); 9055 verifyFormat("constexpr char hello[]{\"hello\"};", Spaces); 9056 verifyFormat("double &operator[](int i) { return 0; }\n" 9057 "int i;", 9058 Spaces); 9059 verifyFormat("std::unique_ptr<int[]> foo() {}", Spaces); 9060 verifyFormat("int i = a[ a ][ a ]->f();", Spaces); 9061 verifyFormat("int i = (*b)[ a ]->f();", Spaces); 9062 } 9063 9064 TEST_F(FormatTest, ConfigurableSpaceBeforeAssignmentOperators) { 9065 verifyFormat("int a = 5;"); 9066 verifyFormat("a += 42;"); 9067 verifyFormat("a or_eq 8;"); 9068 9069 FormatStyle Spaces = getLLVMStyle(); 9070 Spaces.SpaceBeforeAssignmentOperators = false; 9071 verifyFormat("int a= 5;", Spaces); 9072 verifyFormat("a+= 42;", Spaces); 9073 verifyFormat("a or_eq 8;", Spaces); 9074 } 9075 9076 TEST_F(FormatTest, AlignConsecutiveAssignments) { 9077 FormatStyle Alignment = getLLVMStyle(); 9078 Alignment.AlignConsecutiveAssignments = false; 9079 verifyFormat("int a = 5;\n" 9080 "int oneTwoThree = 123;", 9081 Alignment); 9082 verifyFormat("int a = 5;\n" 9083 "int oneTwoThree = 123;", 9084 Alignment); 9085 9086 Alignment.AlignConsecutiveAssignments = true; 9087 verifyFormat("int a = 5;\n" 9088 "int oneTwoThree = 123;", 9089 Alignment); 9090 verifyFormat("int a = method();\n" 9091 "int oneTwoThree = 133;", 9092 Alignment); 9093 verifyFormat("a &= 5;\n" 9094 "bcd *= 5;\n" 9095 "ghtyf += 5;\n" 9096 "dvfvdb -= 5;\n" 9097 "a /= 5;\n" 9098 "vdsvsv %= 5;\n" 9099 "sfdbddfbdfbb ^= 5;\n" 9100 "dvsdsv |= 5;\n" 9101 "int dsvvdvsdvvv = 123;", 9102 Alignment); 9103 verifyFormat("int i = 1, j = 10;\n" 9104 "something = 2000;", 9105 Alignment); 9106 verifyFormat("something = 2000;\n" 9107 "int i = 1, j = 10;\n", 9108 Alignment); 9109 verifyFormat("something = 2000;\n" 9110 "another = 911;\n" 9111 "int i = 1, j = 10;\n" 9112 "oneMore = 1;\n" 9113 "i = 2;", 9114 Alignment); 9115 verifyFormat("int a = 5;\n" 9116 "int one = 1;\n" 9117 "method();\n" 9118 "int oneTwoThree = 123;\n" 9119 "int oneTwo = 12;", 9120 Alignment); 9121 verifyFormat("int oneTwoThree = 123;\n" 9122 "int oneTwo = 12;\n" 9123 "method();\n", 9124 Alignment); 9125 verifyFormat("int oneTwoThree = 123; // comment\n" 9126 "int oneTwo = 12; // comment", 9127 Alignment); 9128 EXPECT_EQ("int a = 5;\n" 9129 "\n" 9130 "int oneTwoThree = 123;", 9131 format("int a = 5;\n" 9132 "\n" 9133 "int oneTwoThree= 123;", 9134 Alignment)); 9135 EXPECT_EQ("int a = 5;\n" 9136 "int one = 1;\n" 9137 "\n" 9138 "int oneTwoThree = 123;", 9139 format("int a = 5;\n" 9140 "int one = 1;\n" 9141 "\n" 9142 "int oneTwoThree = 123;", 9143 Alignment)); 9144 EXPECT_EQ("int a = 5;\n" 9145 "int one = 1;\n" 9146 "\n" 9147 "int oneTwoThree = 123;\n" 9148 "int oneTwo = 12;", 9149 format("int a = 5;\n" 9150 "int one = 1;\n" 9151 "\n" 9152 "int oneTwoThree = 123;\n" 9153 "int oneTwo = 12;", 9154 Alignment)); 9155 Alignment.AlignEscapedNewlinesLeft = true; 9156 verifyFormat("#define A \\\n" 9157 " int aaaa = 12; \\\n" 9158 " int b = 23; \\\n" 9159 " int ccc = 234; \\\n" 9160 " int dddddddddd = 2345;", 9161 Alignment); 9162 Alignment.AlignEscapedNewlinesLeft = false; 9163 verifyFormat("#define A " 9164 " \\\n" 9165 " int aaaa = 12; " 9166 " \\\n" 9167 " int b = 23; " 9168 " \\\n" 9169 " int ccc = 234; " 9170 " \\\n" 9171 " int dddddddddd = 2345;", 9172 Alignment); 9173 verifyFormat("void SomeFunction(int parameter = 1, int i = 2, int j = 3, int " 9174 "k = 4, int l = 5,\n" 9175 " int m = 6) {\n" 9176 " int j = 10;\n" 9177 " otherThing = 1;\n" 9178 "}", 9179 Alignment); 9180 verifyFormat("void SomeFunction(int parameter = 0) {\n" 9181 " int i = 1;\n" 9182 " int j = 2;\n" 9183 " int big = 10000;\n" 9184 "}", 9185 Alignment); 9186 verifyFormat("class C {\n" 9187 "public:\n" 9188 " int i = 1;\n" 9189 " virtual void f() = 0;\n" 9190 "};", 9191 Alignment); 9192 verifyFormat("int i = 1;\n" 9193 "if (SomeType t = getSomething()) {\n" 9194 "}\n" 9195 "int j = 2;\n" 9196 "int big = 10000;", 9197 Alignment); 9198 verifyFormat("int j = 7;\n" 9199 "for (int k = 0; k < N; ++k) {\n" 9200 "}\n" 9201 "int j = 2;\n" 9202 "int big = 10000;\n" 9203 "}", 9204 Alignment); 9205 Alignment.BreakBeforeBinaryOperators = FormatStyle::BOS_All; 9206 verifyFormat("int i = 1;\n" 9207 "LooooooooooongType loooooooooooooooooooooongVariable\n" 9208 " = someLooooooooooooooooongFunction();\n" 9209 "int j = 2;", 9210 Alignment); 9211 Alignment.BreakBeforeBinaryOperators = FormatStyle::BOS_None; 9212 verifyFormat("int i = 1;\n" 9213 "LooooooooooongType loooooooooooooooooooooongVariable =\n" 9214 " someLooooooooooooooooongFunction();\n" 9215 "int j = 2;", 9216 Alignment); 9217 9218 verifyFormat("auto lambda = []() {\n" 9219 " auto i = 0;\n" 9220 " return 0;\n" 9221 "};\n" 9222 "int i = 0;\n" 9223 "auto v = type{\n" 9224 " i = 1, //\n" 9225 " (i = 2), //\n" 9226 " i = 3 //\n" 9227 "};", 9228 Alignment); 9229 9230 // FIXME: Should align all three assignments 9231 verifyFormat( 9232 "int i = 1;\n" 9233 "SomeType a = SomeFunction(looooooooooooooooooooooongParameterA,\n" 9234 " loooooooooooooooooooooongParameterB);\n" 9235 "int j = 2;", 9236 Alignment); 9237 9238 verifyFormat("template <typename T, typename T_0 = very_long_type_name_0,\n" 9239 " typename B = very_long_type_name_1,\n" 9240 " typename T_2 = very_long_type_name_2>\n" 9241 "auto foo() {}\n", 9242 Alignment); 9243 verifyFormat("int a, b = 1;\n" 9244 "int c = 2;\n" 9245 "int dd = 3;\n", 9246 Alignment); 9247 verifyFormat("int aa = ((1 > 2) ? 3 : 4);\n" 9248 "float b[1][] = {{3.f}};\n", 9249 Alignment); 9250 } 9251 9252 TEST_F(FormatTest, AlignConsecutiveDeclarations) { 9253 FormatStyle Alignment = getLLVMStyle(); 9254 Alignment.AlignConsecutiveDeclarations = false; 9255 verifyFormat("float const a = 5;\n" 9256 "int oneTwoThree = 123;", 9257 Alignment); 9258 verifyFormat("int a = 5;\n" 9259 "float const oneTwoThree = 123;", 9260 Alignment); 9261 9262 Alignment.AlignConsecutiveDeclarations = true; 9263 verifyFormat("float const a = 5;\n" 9264 "int oneTwoThree = 123;", 9265 Alignment); 9266 verifyFormat("int a = method();\n" 9267 "float const oneTwoThree = 133;", 9268 Alignment); 9269 verifyFormat("int i = 1, j = 10;\n" 9270 "something = 2000;", 9271 Alignment); 9272 verifyFormat("something = 2000;\n" 9273 "int i = 1, j = 10;\n", 9274 Alignment); 9275 verifyFormat("float something = 2000;\n" 9276 "double another = 911;\n" 9277 "int i = 1, j = 10;\n" 9278 "const int *oneMore = 1;\n" 9279 "unsigned i = 2;", 9280 Alignment); 9281 verifyFormat("float a = 5;\n" 9282 "int one = 1;\n" 9283 "method();\n" 9284 "const double oneTwoThree = 123;\n" 9285 "const unsigned int oneTwo = 12;", 9286 Alignment); 9287 verifyFormat("int oneTwoThree{0}; // comment\n" 9288 "unsigned oneTwo; // comment", 9289 Alignment); 9290 EXPECT_EQ("float const a = 5;\n" 9291 "\n" 9292 "int oneTwoThree = 123;", 9293 format("float const a = 5;\n" 9294 "\n" 9295 "int oneTwoThree= 123;", 9296 Alignment)); 9297 EXPECT_EQ("float a = 5;\n" 9298 "int one = 1;\n" 9299 "\n" 9300 "unsigned oneTwoThree = 123;", 9301 format("float a = 5;\n" 9302 "int one = 1;\n" 9303 "\n" 9304 "unsigned oneTwoThree = 123;", 9305 Alignment)); 9306 EXPECT_EQ("float a = 5;\n" 9307 "int one = 1;\n" 9308 "\n" 9309 "unsigned oneTwoThree = 123;\n" 9310 "int oneTwo = 12;", 9311 format("float a = 5;\n" 9312 "int one = 1;\n" 9313 "\n" 9314 "unsigned oneTwoThree = 123;\n" 9315 "int oneTwo = 12;", 9316 Alignment)); 9317 Alignment.AlignConsecutiveAssignments = true; 9318 verifyFormat("float something = 2000;\n" 9319 "double another = 911;\n" 9320 "int i = 1, j = 10;\n" 9321 "const int *oneMore = 1;\n" 9322 "unsigned i = 2;", 9323 Alignment); 9324 verifyFormat("int oneTwoThree = {0}; // comment\n" 9325 "unsigned oneTwo = 0; // comment", 9326 Alignment); 9327 EXPECT_EQ("void SomeFunction(int parameter = 0) {\n" 9328 " int const i = 1;\n" 9329 " int * j = 2;\n" 9330 " int big = 10000;\n" 9331 "\n" 9332 " unsigned oneTwoThree = 123;\n" 9333 " int oneTwo = 12;\n" 9334 " method();\n" 9335 " float k = 2;\n" 9336 " int ll = 10000;\n" 9337 "}", 9338 format("void SomeFunction(int parameter= 0) {\n" 9339 " int const i= 1;\n" 9340 " int *j=2;\n" 9341 " int big = 10000;\n" 9342 "\n" 9343 "unsigned oneTwoThree =123;\n" 9344 "int oneTwo = 12;\n" 9345 " method();\n" 9346 "float k= 2;\n" 9347 "int ll=10000;\n" 9348 "}", 9349 Alignment)); 9350 Alignment.AlignConsecutiveAssignments = false; 9351 Alignment.AlignEscapedNewlinesLeft = true; 9352 verifyFormat("#define A \\\n" 9353 " int aaaa = 12; \\\n" 9354 " float b = 23; \\\n" 9355 " const int ccc = 234; \\\n" 9356 " unsigned dddddddddd = 2345;", 9357 Alignment); 9358 Alignment.AlignEscapedNewlinesLeft = false; 9359 Alignment.ColumnLimit = 30; 9360 verifyFormat("#define A \\\n" 9361 " int aaaa = 12; \\\n" 9362 " float b = 23; \\\n" 9363 " const int ccc = 234; \\\n" 9364 " int dddddddddd = 2345;", 9365 Alignment); 9366 Alignment.ColumnLimit = 80; 9367 verifyFormat("void SomeFunction(int parameter = 1, int i = 2, int j = 3, int " 9368 "k = 4, int l = 5,\n" 9369 " int m = 6) {\n" 9370 " const int j = 10;\n" 9371 " otherThing = 1;\n" 9372 "}", 9373 Alignment); 9374 verifyFormat("void SomeFunction(int parameter = 0) {\n" 9375 " int const i = 1;\n" 9376 " int * j = 2;\n" 9377 " int big = 10000;\n" 9378 "}", 9379 Alignment); 9380 verifyFormat("class C {\n" 9381 "public:\n" 9382 " int i = 1;\n" 9383 " virtual void f() = 0;\n" 9384 "};", 9385 Alignment); 9386 verifyFormat("float i = 1;\n" 9387 "if (SomeType t = getSomething()) {\n" 9388 "}\n" 9389 "const unsigned j = 2;\n" 9390 "int big = 10000;", 9391 Alignment); 9392 verifyFormat("float j = 7;\n" 9393 "for (int k = 0; k < N; ++k) {\n" 9394 "}\n" 9395 "unsigned j = 2;\n" 9396 "int big = 10000;\n" 9397 "}", 9398 Alignment); 9399 Alignment.BreakBeforeBinaryOperators = FormatStyle::BOS_All; 9400 verifyFormat("float i = 1;\n" 9401 "LooooooooooongType loooooooooooooooooooooongVariable\n" 9402 " = someLooooooooooooooooongFunction();\n" 9403 "int j = 2;", 9404 Alignment); 9405 Alignment.BreakBeforeBinaryOperators = FormatStyle::BOS_None; 9406 verifyFormat("int i = 1;\n" 9407 "LooooooooooongType loooooooooooooooooooooongVariable =\n" 9408 " someLooooooooooooooooongFunction();\n" 9409 "int j = 2;", 9410 Alignment); 9411 9412 Alignment.AlignConsecutiveAssignments = true; 9413 verifyFormat("auto lambda = []() {\n" 9414 " auto ii = 0;\n" 9415 " float j = 0;\n" 9416 " return 0;\n" 9417 "};\n" 9418 "int i = 0;\n" 9419 "float i2 = 0;\n" 9420 "auto v = type{\n" 9421 " i = 1, //\n" 9422 " (i = 2), //\n" 9423 " i = 3 //\n" 9424 "};", 9425 Alignment); 9426 Alignment.AlignConsecutiveAssignments = false; 9427 9428 // FIXME: Should align all three declarations 9429 verifyFormat( 9430 "int i = 1;\n" 9431 "SomeType a = SomeFunction(looooooooooooooooooooooongParameterA,\n" 9432 " loooooooooooooooooooooongParameterB);\n" 9433 "int j = 2;", 9434 Alignment); 9435 9436 // Test interactions with ColumnLimit and AlignConsecutiveAssignments: 9437 // We expect declarations and assignments to align, as long as it doesn't 9438 // exceed the column limit, starting a new alignemnt sequence whenever it 9439 // happens. 9440 Alignment.AlignConsecutiveAssignments = true; 9441 Alignment.ColumnLimit = 30; 9442 verifyFormat("float ii = 1;\n" 9443 "unsigned j = 2;\n" 9444 "int someVerylongVariable = 1;\n" 9445 "AnotherLongType ll = 123456;\n" 9446 "VeryVeryLongType k = 2;\n" 9447 "int myvar = 1;", 9448 Alignment); 9449 Alignment.ColumnLimit = 80; 9450 Alignment.AlignConsecutiveAssignments = false; 9451 9452 verifyFormat( 9453 "template <typename LongTemplate, typename VeryLongTemplateTypeName,\n" 9454 " typename LongType, typename B>\n" 9455 "auto foo() {}\n", 9456 Alignment); 9457 verifyFormat("float a, b = 1;\n" 9458 "int c = 2;\n" 9459 "int dd = 3;\n", 9460 Alignment); 9461 verifyFormat("int aa = ((1 > 2) ? 3 : 4);\n" 9462 "float b[1][] = {{3.f}};\n", 9463 Alignment); 9464 Alignment.AlignConsecutiveAssignments = true; 9465 verifyFormat("float a, b = 1;\n" 9466 "int c = 2;\n" 9467 "int dd = 3;\n", 9468 Alignment); 9469 verifyFormat("int aa = ((1 > 2) ? 3 : 4);\n" 9470 "float b[1][] = {{3.f}};\n", 9471 Alignment); 9472 Alignment.AlignConsecutiveAssignments = false; 9473 9474 Alignment.ColumnLimit = 30; 9475 Alignment.BinPackParameters = false; 9476 verifyFormat("void foo(float a,\n" 9477 " float b,\n" 9478 " int c,\n" 9479 " uint32_t *d) {\n" 9480 " int * e = 0;\n" 9481 " float f = 0;\n" 9482 " double g = 0;\n" 9483 "}\n" 9484 "void bar(ino_t a,\n" 9485 " int b,\n" 9486 " uint32_t *c,\n" 9487 " bool d) {}\n", 9488 Alignment); 9489 Alignment.BinPackParameters = true; 9490 Alignment.ColumnLimit = 80; 9491 } 9492 9493 TEST_F(FormatTest, LinuxBraceBreaking) { 9494 FormatStyle LinuxBraceStyle = getLLVMStyle(); 9495 LinuxBraceStyle.BreakBeforeBraces = FormatStyle::BS_Linux; 9496 verifyFormat("namespace a\n" 9497 "{\n" 9498 "class A\n" 9499 "{\n" 9500 " void f()\n" 9501 " {\n" 9502 " if (true) {\n" 9503 " a();\n" 9504 " b();\n" 9505 " } else {\n" 9506 " a();\n" 9507 " }\n" 9508 " }\n" 9509 " void g() { return; }\n" 9510 "};\n" 9511 "struct B {\n" 9512 " int x;\n" 9513 "};\n" 9514 "}\n", 9515 LinuxBraceStyle); 9516 verifyFormat("enum X {\n" 9517 " Y = 0,\n" 9518 "}\n", 9519 LinuxBraceStyle); 9520 verifyFormat("struct S {\n" 9521 " int Type;\n" 9522 " union {\n" 9523 " int x;\n" 9524 " double y;\n" 9525 " } Value;\n" 9526 " class C\n" 9527 " {\n" 9528 " MyFavoriteType Value;\n" 9529 " } Class;\n" 9530 "}\n", 9531 LinuxBraceStyle); 9532 } 9533 9534 TEST_F(FormatTest, MozillaBraceBreaking) { 9535 FormatStyle MozillaBraceStyle = getLLVMStyle(); 9536 MozillaBraceStyle.BreakBeforeBraces = FormatStyle::BS_Mozilla; 9537 verifyFormat("namespace a {\n" 9538 "class A\n" 9539 "{\n" 9540 " void f()\n" 9541 " {\n" 9542 " if (true) {\n" 9543 " a();\n" 9544 " b();\n" 9545 " }\n" 9546 " }\n" 9547 " void g() { return; }\n" 9548 "};\n" 9549 "enum E\n" 9550 "{\n" 9551 " A,\n" 9552 " // foo\n" 9553 " B,\n" 9554 " C\n" 9555 "};\n" 9556 "struct B\n" 9557 "{\n" 9558 " int x;\n" 9559 "};\n" 9560 "}\n", 9561 MozillaBraceStyle); 9562 verifyFormat("struct S\n" 9563 "{\n" 9564 " int Type;\n" 9565 " union\n" 9566 " {\n" 9567 " int x;\n" 9568 " double y;\n" 9569 " } Value;\n" 9570 " class C\n" 9571 " {\n" 9572 " MyFavoriteType Value;\n" 9573 " } Class;\n" 9574 "}\n", 9575 MozillaBraceStyle); 9576 } 9577 9578 TEST_F(FormatTest, StroustrupBraceBreaking) { 9579 FormatStyle StroustrupBraceStyle = getLLVMStyle(); 9580 StroustrupBraceStyle.BreakBeforeBraces = FormatStyle::BS_Stroustrup; 9581 verifyFormat("namespace a {\n" 9582 "class A {\n" 9583 " void f()\n" 9584 " {\n" 9585 " if (true) {\n" 9586 " a();\n" 9587 " b();\n" 9588 " }\n" 9589 " }\n" 9590 " void g() { return; }\n" 9591 "};\n" 9592 "struct B {\n" 9593 " int x;\n" 9594 "};\n" 9595 "}\n", 9596 StroustrupBraceStyle); 9597 9598 verifyFormat("void foo()\n" 9599 "{\n" 9600 " if (a) {\n" 9601 " a();\n" 9602 " }\n" 9603 " else {\n" 9604 " b();\n" 9605 " }\n" 9606 "}\n", 9607 StroustrupBraceStyle); 9608 9609 verifyFormat("#ifdef _DEBUG\n" 9610 "int foo(int i = 0)\n" 9611 "#else\n" 9612 "int foo(int i = 5)\n" 9613 "#endif\n" 9614 "{\n" 9615 " return i;\n" 9616 "}", 9617 StroustrupBraceStyle); 9618 9619 verifyFormat("void foo() {}\n" 9620 "void bar()\n" 9621 "#ifdef _DEBUG\n" 9622 "{\n" 9623 " foo();\n" 9624 "}\n" 9625 "#else\n" 9626 "{\n" 9627 "}\n" 9628 "#endif", 9629 StroustrupBraceStyle); 9630 9631 verifyFormat("void foobar() { int i = 5; }\n" 9632 "#ifdef _DEBUG\n" 9633 "void bar() {}\n" 9634 "#else\n" 9635 "void bar() { foobar(); }\n" 9636 "#endif", 9637 StroustrupBraceStyle); 9638 } 9639 9640 TEST_F(FormatTest, AllmanBraceBreaking) { 9641 FormatStyle AllmanBraceStyle = getLLVMStyle(); 9642 AllmanBraceStyle.BreakBeforeBraces = FormatStyle::BS_Allman; 9643 verifyFormat("namespace a\n" 9644 "{\n" 9645 "class A\n" 9646 "{\n" 9647 " void f()\n" 9648 " {\n" 9649 " if (true)\n" 9650 " {\n" 9651 " a();\n" 9652 " b();\n" 9653 " }\n" 9654 " }\n" 9655 " void g() { return; }\n" 9656 "};\n" 9657 "struct B\n" 9658 "{\n" 9659 " int x;\n" 9660 "};\n" 9661 "}", 9662 AllmanBraceStyle); 9663 9664 verifyFormat("void f()\n" 9665 "{\n" 9666 " if (true)\n" 9667 " {\n" 9668 " a();\n" 9669 " }\n" 9670 " else if (false)\n" 9671 " {\n" 9672 " b();\n" 9673 " }\n" 9674 " else\n" 9675 " {\n" 9676 " c();\n" 9677 " }\n" 9678 "}\n", 9679 AllmanBraceStyle); 9680 9681 verifyFormat("void f()\n" 9682 "{\n" 9683 " for (int i = 0; i < 10; ++i)\n" 9684 " {\n" 9685 " a();\n" 9686 " }\n" 9687 " while (false)\n" 9688 " {\n" 9689 " b();\n" 9690 " }\n" 9691 " do\n" 9692 " {\n" 9693 " c();\n" 9694 " } while (false)\n" 9695 "}\n", 9696 AllmanBraceStyle); 9697 9698 verifyFormat("void f(int a)\n" 9699 "{\n" 9700 " switch (a)\n" 9701 " {\n" 9702 " case 0:\n" 9703 " break;\n" 9704 " case 1:\n" 9705 " {\n" 9706 " break;\n" 9707 " }\n" 9708 " case 2:\n" 9709 " {\n" 9710 " }\n" 9711 " break;\n" 9712 " default:\n" 9713 " break;\n" 9714 " }\n" 9715 "}\n", 9716 AllmanBraceStyle); 9717 9718 verifyFormat("enum X\n" 9719 "{\n" 9720 " Y = 0,\n" 9721 "}\n", 9722 AllmanBraceStyle); 9723 verifyFormat("enum X\n" 9724 "{\n" 9725 " Y = 0\n" 9726 "}\n", 9727 AllmanBraceStyle); 9728 9729 verifyFormat("@interface BSApplicationController ()\n" 9730 "{\n" 9731 "@private\n" 9732 " id _extraIvar;\n" 9733 "}\n" 9734 "@end\n", 9735 AllmanBraceStyle); 9736 9737 verifyFormat("#ifdef _DEBUG\n" 9738 "int foo(int i = 0)\n" 9739 "#else\n" 9740 "int foo(int i = 5)\n" 9741 "#endif\n" 9742 "{\n" 9743 " return i;\n" 9744 "}", 9745 AllmanBraceStyle); 9746 9747 verifyFormat("void foo() {}\n" 9748 "void bar()\n" 9749 "#ifdef _DEBUG\n" 9750 "{\n" 9751 " foo();\n" 9752 "}\n" 9753 "#else\n" 9754 "{\n" 9755 "}\n" 9756 "#endif", 9757 AllmanBraceStyle); 9758 9759 verifyFormat("void foobar() { int i = 5; }\n" 9760 "#ifdef _DEBUG\n" 9761 "void bar() {}\n" 9762 "#else\n" 9763 "void bar() { foobar(); }\n" 9764 "#endif", 9765 AllmanBraceStyle); 9766 9767 // This shouldn't affect ObjC blocks.. 9768 verifyFormat("[self doSomeThingWithACompletionHandler:^{\n" 9769 " // ...\n" 9770 " int i;\n" 9771 "}];", 9772 AllmanBraceStyle); 9773 verifyFormat("void (^block)(void) = ^{\n" 9774 " // ...\n" 9775 " int i;\n" 9776 "};", 9777 AllmanBraceStyle); 9778 // .. or dict literals. 9779 verifyFormat("void f()\n" 9780 "{\n" 9781 " [object someMethod:@{ @\"a\" : @\"b\" }];\n" 9782 "}", 9783 AllmanBraceStyle); 9784 verifyFormat("int f()\n" 9785 "{ // comment\n" 9786 " return 42;\n" 9787 "}", 9788 AllmanBraceStyle); 9789 9790 AllmanBraceStyle.ColumnLimit = 19; 9791 verifyFormat("void f() { int i; }", AllmanBraceStyle); 9792 AllmanBraceStyle.ColumnLimit = 18; 9793 verifyFormat("void f()\n" 9794 "{\n" 9795 " int i;\n" 9796 "}", 9797 AllmanBraceStyle); 9798 AllmanBraceStyle.ColumnLimit = 80; 9799 9800 FormatStyle BreakBeforeBraceShortIfs = AllmanBraceStyle; 9801 BreakBeforeBraceShortIfs.AllowShortIfStatementsOnASingleLine = true; 9802 BreakBeforeBraceShortIfs.AllowShortLoopsOnASingleLine = true; 9803 verifyFormat("void f(bool b)\n" 9804 "{\n" 9805 " if (b)\n" 9806 " {\n" 9807 " return;\n" 9808 " }\n" 9809 "}\n", 9810 BreakBeforeBraceShortIfs); 9811 verifyFormat("void f(bool b)\n" 9812 "{\n" 9813 " if (b) return;\n" 9814 "}\n", 9815 BreakBeforeBraceShortIfs); 9816 verifyFormat("void f(bool b)\n" 9817 "{\n" 9818 " while (b)\n" 9819 " {\n" 9820 " return;\n" 9821 " }\n" 9822 "}\n", 9823 BreakBeforeBraceShortIfs); 9824 } 9825 9826 TEST_F(FormatTest, GNUBraceBreaking) { 9827 FormatStyle GNUBraceStyle = getLLVMStyle(); 9828 GNUBraceStyle.BreakBeforeBraces = FormatStyle::BS_GNU; 9829 verifyFormat("namespace a\n" 9830 "{\n" 9831 "class A\n" 9832 "{\n" 9833 " void f()\n" 9834 " {\n" 9835 " int a;\n" 9836 " {\n" 9837 " int b;\n" 9838 " }\n" 9839 " if (true)\n" 9840 " {\n" 9841 " a();\n" 9842 " b();\n" 9843 " }\n" 9844 " }\n" 9845 " void g() { return; }\n" 9846 "}\n" 9847 "}", 9848 GNUBraceStyle); 9849 9850 verifyFormat("void f()\n" 9851 "{\n" 9852 " if (true)\n" 9853 " {\n" 9854 " a();\n" 9855 " }\n" 9856 " else if (false)\n" 9857 " {\n" 9858 " b();\n" 9859 " }\n" 9860 " else\n" 9861 " {\n" 9862 " c();\n" 9863 " }\n" 9864 "}\n", 9865 GNUBraceStyle); 9866 9867 verifyFormat("void f()\n" 9868 "{\n" 9869 " for (int i = 0; i < 10; ++i)\n" 9870 " {\n" 9871 " a();\n" 9872 " }\n" 9873 " while (false)\n" 9874 " {\n" 9875 " b();\n" 9876 " }\n" 9877 " do\n" 9878 " {\n" 9879 " c();\n" 9880 " }\n" 9881 " while (false);\n" 9882 "}\n", 9883 GNUBraceStyle); 9884 9885 verifyFormat("void f(int a)\n" 9886 "{\n" 9887 " switch (a)\n" 9888 " {\n" 9889 " case 0:\n" 9890 " break;\n" 9891 " case 1:\n" 9892 " {\n" 9893 " break;\n" 9894 " }\n" 9895 " case 2:\n" 9896 " {\n" 9897 " }\n" 9898 " break;\n" 9899 " default:\n" 9900 " break;\n" 9901 " }\n" 9902 "}\n", 9903 GNUBraceStyle); 9904 9905 verifyFormat("enum X\n" 9906 "{\n" 9907 " Y = 0,\n" 9908 "}\n", 9909 GNUBraceStyle); 9910 9911 verifyFormat("@interface BSApplicationController ()\n" 9912 "{\n" 9913 "@private\n" 9914 " id _extraIvar;\n" 9915 "}\n" 9916 "@end\n", 9917 GNUBraceStyle); 9918 9919 verifyFormat("#ifdef _DEBUG\n" 9920 "int foo(int i = 0)\n" 9921 "#else\n" 9922 "int foo(int i = 5)\n" 9923 "#endif\n" 9924 "{\n" 9925 " return i;\n" 9926 "}", 9927 GNUBraceStyle); 9928 9929 verifyFormat("void foo() {}\n" 9930 "void bar()\n" 9931 "#ifdef _DEBUG\n" 9932 "{\n" 9933 " foo();\n" 9934 "}\n" 9935 "#else\n" 9936 "{\n" 9937 "}\n" 9938 "#endif", 9939 GNUBraceStyle); 9940 9941 verifyFormat("void foobar() { int i = 5; }\n" 9942 "#ifdef _DEBUG\n" 9943 "void bar() {}\n" 9944 "#else\n" 9945 "void bar() { foobar(); }\n" 9946 "#endif", 9947 GNUBraceStyle); 9948 } 9949 9950 TEST_F(FormatTest, WebKitBraceBreaking) { 9951 FormatStyle WebKitBraceStyle = getLLVMStyle(); 9952 WebKitBraceStyle.BreakBeforeBraces = FormatStyle::BS_WebKit; 9953 verifyFormat("namespace a {\n" 9954 "class A {\n" 9955 " void f()\n" 9956 " {\n" 9957 " if (true) {\n" 9958 " a();\n" 9959 " b();\n" 9960 " }\n" 9961 " }\n" 9962 " void g() { return; }\n" 9963 "};\n" 9964 "enum E {\n" 9965 " A,\n" 9966 " // foo\n" 9967 " B,\n" 9968 " C\n" 9969 "};\n" 9970 "struct B {\n" 9971 " int x;\n" 9972 "};\n" 9973 "}\n", 9974 WebKitBraceStyle); 9975 verifyFormat("struct S {\n" 9976 " int Type;\n" 9977 " union {\n" 9978 " int x;\n" 9979 " double y;\n" 9980 " } Value;\n" 9981 " class C {\n" 9982 " MyFavoriteType Value;\n" 9983 " } Class;\n" 9984 "};\n", 9985 WebKitBraceStyle); 9986 } 9987 9988 TEST_F(FormatTest, CatchExceptionReferenceBinding) { 9989 verifyFormat("void f() {\n" 9990 " try {\n" 9991 " } catch (const Exception &e) {\n" 9992 " }\n" 9993 "}\n", 9994 getLLVMStyle()); 9995 } 9996 9997 TEST_F(FormatTest, UnderstandsPragmas) { 9998 verifyFormat("#pragma omp reduction(| : var)"); 9999 verifyFormat("#pragma omp reduction(+ : var)"); 10000 10001 EXPECT_EQ("#pragma mark Any non-hyphenated or hyphenated string " 10002 "(including parentheses).", 10003 format("#pragma mark Any non-hyphenated or hyphenated string " 10004 "(including parentheses).")); 10005 } 10006 10007 TEST_F(FormatTest, UnderstandPragmaOption) { 10008 verifyFormat("#pragma option -C -A"); 10009 10010 EXPECT_EQ("#pragma option -C -A", format("#pragma option -C -A")); 10011 } 10012 10013 #define EXPECT_ALL_STYLES_EQUAL(Styles) \ 10014 for (size_t i = 1; i < Styles.size(); ++i) \ 10015 EXPECT_EQ(Styles[0], Styles[i]) << "Style #" << i << " of " << Styles.size() \ 10016 << " differs from Style #0" 10017 10018 TEST_F(FormatTest, GetsPredefinedStyleByName) { 10019 SmallVector<FormatStyle, 3> Styles; 10020 Styles.resize(3); 10021 10022 Styles[0] = getLLVMStyle(); 10023 EXPECT_TRUE(getPredefinedStyle("LLVM", FormatStyle::LK_Cpp, &Styles[1])); 10024 EXPECT_TRUE(getPredefinedStyle("lLvM", FormatStyle::LK_Cpp, &Styles[2])); 10025 EXPECT_ALL_STYLES_EQUAL(Styles); 10026 10027 Styles[0] = getGoogleStyle(); 10028 EXPECT_TRUE(getPredefinedStyle("Google", FormatStyle::LK_Cpp, &Styles[1])); 10029 EXPECT_TRUE(getPredefinedStyle("gOOgle", FormatStyle::LK_Cpp, &Styles[2])); 10030 EXPECT_ALL_STYLES_EQUAL(Styles); 10031 10032 Styles[0] = getGoogleStyle(FormatStyle::LK_JavaScript); 10033 EXPECT_TRUE( 10034 getPredefinedStyle("Google", FormatStyle::LK_JavaScript, &Styles[1])); 10035 EXPECT_TRUE( 10036 getPredefinedStyle("gOOgle", FormatStyle::LK_JavaScript, &Styles[2])); 10037 EXPECT_ALL_STYLES_EQUAL(Styles); 10038 10039 Styles[0] = getChromiumStyle(FormatStyle::LK_Cpp); 10040 EXPECT_TRUE(getPredefinedStyle("Chromium", FormatStyle::LK_Cpp, &Styles[1])); 10041 EXPECT_TRUE(getPredefinedStyle("cHRoMiUM", FormatStyle::LK_Cpp, &Styles[2])); 10042 EXPECT_ALL_STYLES_EQUAL(Styles); 10043 10044 Styles[0] = getMozillaStyle(); 10045 EXPECT_TRUE(getPredefinedStyle("Mozilla", FormatStyle::LK_Cpp, &Styles[1])); 10046 EXPECT_TRUE(getPredefinedStyle("moZILla", FormatStyle::LK_Cpp, &Styles[2])); 10047 EXPECT_ALL_STYLES_EQUAL(Styles); 10048 10049 Styles[0] = getWebKitStyle(); 10050 EXPECT_TRUE(getPredefinedStyle("WebKit", FormatStyle::LK_Cpp, &Styles[1])); 10051 EXPECT_TRUE(getPredefinedStyle("wEbKit", FormatStyle::LK_Cpp, &Styles[2])); 10052 EXPECT_ALL_STYLES_EQUAL(Styles); 10053 10054 Styles[0] = getGNUStyle(); 10055 EXPECT_TRUE(getPredefinedStyle("GNU", FormatStyle::LK_Cpp, &Styles[1])); 10056 EXPECT_TRUE(getPredefinedStyle("gnU", FormatStyle::LK_Cpp, &Styles[2])); 10057 EXPECT_ALL_STYLES_EQUAL(Styles); 10058 10059 EXPECT_FALSE(getPredefinedStyle("qwerty", FormatStyle::LK_Cpp, &Styles[0])); 10060 } 10061 10062 TEST_F(FormatTest, GetsCorrectBasedOnStyle) { 10063 SmallVector<FormatStyle, 8> Styles; 10064 Styles.resize(2); 10065 10066 Styles[0] = getGoogleStyle(); 10067 Styles[1] = getLLVMStyle(); 10068 EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google", &Styles[1]).value()); 10069 EXPECT_ALL_STYLES_EQUAL(Styles); 10070 10071 Styles.resize(5); 10072 Styles[0] = getGoogleStyle(FormatStyle::LK_JavaScript); 10073 Styles[1] = getLLVMStyle(); 10074 Styles[1].Language = FormatStyle::LK_JavaScript; 10075 EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google", &Styles[1]).value()); 10076 10077 Styles[2] = getLLVMStyle(); 10078 Styles[2].Language = FormatStyle::LK_JavaScript; 10079 EXPECT_EQ(0, parseConfiguration("Language: JavaScript\n" 10080 "BasedOnStyle: Google", 10081 &Styles[2]) 10082 .value()); 10083 10084 Styles[3] = getLLVMStyle(); 10085 Styles[3].Language = FormatStyle::LK_JavaScript; 10086 EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google\n" 10087 "Language: JavaScript", 10088 &Styles[3]) 10089 .value()); 10090 10091 Styles[4] = getLLVMStyle(); 10092 Styles[4].Language = FormatStyle::LK_JavaScript; 10093 EXPECT_EQ(0, parseConfiguration("---\n" 10094 "BasedOnStyle: LLVM\n" 10095 "IndentWidth: 123\n" 10096 "---\n" 10097 "BasedOnStyle: Google\n" 10098 "Language: JavaScript", 10099 &Styles[4]) 10100 .value()); 10101 EXPECT_ALL_STYLES_EQUAL(Styles); 10102 } 10103 10104 #define CHECK_PARSE_BOOL_FIELD(FIELD, CONFIG_NAME) \ 10105 Style.FIELD = false; \ 10106 EXPECT_EQ(0, parseConfiguration(CONFIG_NAME ": true", &Style).value()); \ 10107 EXPECT_TRUE(Style.FIELD); \ 10108 EXPECT_EQ(0, parseConfiguration(CONFIG_NAME ": false", &Style).value()); \ 10109 EXPECT_FALSE(Style.FIELD); 10110 10111 #define CHECK_PARSE_BOOL(FIELD) CHECK_PARSE_BOOL_FIELD(FIELD, #FIELD) 10112 10113 #define CHECK_PARSE_NESTED_BOOL_FIELD(STRUCT, FIELD, CONFIG_NAME) \ 10114 Style.STRUCT.FIELD = false; \ 10115 EXPECT_EQ(0, \ 10116 parseConfiguration(#STRUCT ":\n " CONFIG_NAME ": true", &Style) \ 10117 .value()); \ 10118 EXPECT_TRUE(Style.STRUCT.FIELD); \ 10119 EXPECT_EQ(0, \ 10120 parseConfiguration(#STRUCT ":\n " CONFIG_NAME ": false", &Style) \ 10121 .value()); \ 10122 EXPECT_FALSE(Style.STRUCT.FIELD); 10123 10124 #define CHECK_PARSE_NESTED_BOOL(STRUCT, FIELD) \ 10125 CHECK_PARSE_NESTED_BOOL_FIELD(STRUCT, FIELD, #FIELD) 10126 10127 #define CHECK_PARSE(TEXT, FIELD, VALUE) \ 10128 EXPECT_NE(VALUE, Style.FIELD); \ 10129 EXPECT_EQ(0, parseConfiguration(TEXT, &Style).value()); \ 10130 EXPECT_EQ(VALUE, Style.FIELD) 10131 10132 TEST_F(FormatTest, ParsesConfigurationBools) { 10133 FormatStyle Style = {}; 10134 Style.Language = FormatStyle::LK_Cpp; 10135 CHECK_PARSE_BOOL(AlignEscapedNewlinesLeft); 10136 CHECK_PARSE_BOOL(AlignOperands); 10137 CHECK_PARSE_BOOL(AlignTrailingComments); 10138 CHECK_PARSE_BOOL(AlignConsecutiveAssignments); 10139 CHECK_PARSE_BOOL(AlignConsecutiveDeclarations); 10140 CHECK_PARSE_BOOL(AllowAllParametersOfDeclarationOnNextLine); 10141 CHECK_PARSE_BOOL(AllowShortBlocksOnASingleLine); 10142 CHECK_PARSE_BOOL(AllowShortCaseLabelsOnASingleLine); 10143 CHECK_PARSE_BOOL(AllowShortIfStatementsOnASingleLine); 10144 CHECK_PARSE_BOOL(AllowShortLoopsOnASingleLine); 10145 CHECK_PARSE_BOOL(AlwaysBreakTemplateDeclarations); 10146 CHECK_PARSE_BOOL(BinPackArguments); 10147 CHECK_PARSE_BOOL(BinPackParameters); 10148 CHECK_PARSE_BOOL(BreakAfterJavaFieldAnnotations); 10149 CHECK_PARSE_BOOL(BreakBeforeTernaryOperators); 10150 CHECK_PARSE_BOOL(BreakConstructorInitializersBeforeComma); 10151 CHECK_PARSE_BOOL(BreakStringLiterals); 10152 CHECK_PARSE_BOOL(ConstructorInitializerAllOnOneLineOrOnePerLine); 10153 CHECK_PARSE_BOOL(DerivePointerAlignment); 10154 CHECK_PARSE_BOOL_FIELD(DerivePointerAlignment, "DerivePointerBinding"); 10155 CHECK_PARSE_BOOL(DisableFormat); 10156 CHECK_PARSE_BOOL(IndentCaseLabels); 10157 CHECK_PARSE_BOOL(IndentWrappedFunctionNames); 10158 CHECK_PARSE_BOOL(KeepEmptyLinesAtTheStartOfBlocks); 10159 CHECK_PARSE_BOOL(ObjCSpaceAfterProperty); 10160 CHECK_PARSE_BOOL(ObjCSpaceBeforeProtocolList); 10161 CHECK_PARSE_BOOL(Cpp11BracedListStyle); 10162 CHECK_PARSE_BOOL(ReflowComments); 10163 CHECK_PARSE_BOOL(SortIncludes); 10164 CHECK_PARSE_BOOL(SpacesInParentheses); 10165 CHECK_PARSE_BOOL(SpacesInSquareBrackets); 10166 CHECK_PARSE_BOOL(SpacesInAngles); 10167 CHECK_PARSE_BOOL(SpaceInEmptyParentheses); 10168 CHECK_PARSE_BOOL(SpacesInContainerLiterals); 10169 CHECK_PARSE_BOOL(SpacesInCStyleCastParentheses); 10170 CHECK_PARSE_BOOL(SpaceAfterCStyleCast); 10171 CHECK_PARSE_BOOL(SpaceBeforeAssignmentOperators); 10172 10173 CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterClass); 10174 CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterControlStatement); 10175 CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterEnum); 10176 CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterFunction); 10177 CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterNamespace); 10178 CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterObjCDeclaration); 10179 CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterStruct); 10180 CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterUnion); 10181 CHECK_PARSE_NESTED_BOOL(BraceWrapping, BeforeCatch); 10182 CHECK_PARSE_NESTED_BOOL(BraceWrapping, BeforeElse); 10183 CHECK_PARSE_NESTED_BOOL(BraceWrapping, IndentBraces); 10184 } 10185 10186 #undef CHECK_PARSE_BOOL 10187 10188 TEST_F(FormatTest, ParsesConfiguration) { 10189 FormatStyle Style = {}; 10190 Style.Language = FormatStyle::LK_Cpp; 10191 CHECK_PARSE("AccessModifierOffset: -1234", AccessModifierOffset, -1234); 10192 CHECK_PARSE("ConstructorInitializerIndentWidth: 1234", 10193 ConstructorInitializerIndentWidth, 1234u); 10194 CHECK_PARSE("ObjCBlockIndentWidth: 1234", ObjCBlockIndentWidth, 1234u); 10195 CHECK_PARSE("ColumnLimit: 1234", ColumnLimit, 1234u); 10196 CHECK_PARSE("MaxEmptyLinesToKeep: 1234", MaxEmptyLinesToKeep, 1234u); 10197 CHECK_PARSE("PenaltyBreakBeforeFirstCallParameter: 1234", 10198 PenaltyBreakBeforeFirstCallParameter, 1234u); 10199 CHECK_PARSE("PenaltyExcessCharacter: 1234", PenaltyExcessCharacter, 1234u); 10200 CHECK_PARSE("PenaltyReturnTypeOnItsOwnLine: 1234", 10201 PenaltyReturnTypeOnItsOwnLine, 1234u); 10202 CHECK_PARSE("SpacesBeforeTrailingComments: 1234", 10203 SpacesBeforeTrailingComments, 1234u); 10204 CHECK_PARSE("IndentWidth: 32", IndentWidth, 32u); 10205 CHECK_PARSE("ContinuationIndentWidth: 11", ContinuationIndentWidth, 11u); 10206 CHECK_PARSE("CommentPragmas: '// abc$'", CommentPragmas, "// abc$"); 10207 10208 Style.PointerAlignment = FormatStyle::PAS_Middle; 10209 CHECK_PARSE("PointerAlignment: Left", PointerAlignment, 10210 FormatStyle::PAS_Left); 10211 CHECK_PARSE("PointerAlignment: Right", PointerAlignment, 10212 FormatStyle::PAS_Right); 10213 CHECK_PARSE("PointerAlignment: Middle", PointerAlignment, 10214 FormatStyle::PAS_Middle); 10215 // For backward compatibility: 10216 CHECK_PARSE("PointerBindsToType: Left", PointerAlignment, 10217 FormatStyle::PAS_Left); 10218 CHECK_PARSE("PointerBindsToType: Right", PointerAlignment, 10219 FormatStyle::PAS_Right); 10220 CHECK_PARSE("PointerBindsToType: Middle", PointerAlignment, 10221 FormatStyle::PAS_Middle); 10222 10223 Style.Standard = FormatStyle::LS_Auto; 10224 CHECK_PARSE("Standard: Cpp03", Standard, FormatStyle::LS_Cpp03); 10225 CHECK_PARSE("Standard: Cpp11", Standard, FormatStyle::LS_Cpp11); 10226 CHECK_PARSE("Standard: C++03", Standard, FormatStyle::LS_Cpp03); 10227 CHECK_PARSE("Standard: C++11", Standard, FormatStyle::LS_Cpp11); 10228 CHECK_PARSE("Standard: Auto", Standard, FormatStyle::LS_Auto); 10229 10230 Style.BreakBeforeBinaryOperators = FormatStyle::BOS_All; 10231 CHECK_PARSE("BreakBeforeBinaryOperators: NonAssignment", 10232 BreakBeforeBinaryOperators, FormatStyle::BOS_NonAssignment); 10233 CHECK_PARSE("BreakBeforeBinaryOperators: None", BreakBeforeBinaryOperators, 10234 FormatStyle::BOS_None); 10235 CHECK_PARSE("BreakBeforeBinaryOperators: All", BreakBeforeBinaryOperators, 10236 FormatStyle::BOS_All); 10237 // For backward compatibility: 10238 CHECK_PARSE("BreakBeforeBinaryOperators: false", BreakBeforeBinaryOperators, 10239 FormatStyle::BOS_None); 10240 CHECK_PARSE("BreakBeforeBinaryOperators: true", BreakBeforeBinaryOperators, 10241 FormatStyle::BOS_All); 10242 10243 Style.AlignAfterOpenBracket = FormatStyle::BAS_AlwaysBreak; 10244 CHECK_PARSE("AlignAfterOpenBracket: Align", AlignAfterOpenBracket, 10245 FormatStyle::BAS_Align); 10246 CHECK_PARSE("AlignAfterOpenBracket: DontAlign", AlignAfterOpenBracket, 10247 FormatStyle::BAS_DontAlign); 10248 CHECK_PARSE("AlignAfterOpenBracket: AlwaysBreak", AlignAfterOpenBracket, 10249 FormatStyle::BAS_AlwaysBreak); 10250 // For backward compatibility: 10251 CHECK_PARSE("AlignAfterOpenBracket: false", AlignAfterOpenBracket, 10252 FormatStyle::BAS_DontAlign); 10253 CHECK_PARSE("AlignAfterOpenBracket: true", AlignAfterOpenBracket, 10254 FormatStyle::BAS_Align); 10255 10256 Style.UseTab = FormatStyle::UT_ForIndentation; 10257 CHECK_PARSE("UseTab: Never", UseTab, FormatStyle::UT_Never); 10258 CHECK_PARSE("UseTab: ForIndentation", UseTab, FormatStyle::UT_ForIndentation); 10259 CHECK_PARSE("UseTab: Always", UseTab, FormatStyle::UT_Always); 10260 CHECK_PARSE("UseTab: ForContinuationAndIndentation", UseTab, 10261 FormatStyle::UT_ForContinuationAndIndentation); 10262 // For backward compatibility: 10263 CHECK_PARSE("UseTab: false", UseTab, FormatStyle::UT_Never); 10264 CHECK_PARSE("UseTab: true", UseTab, FormatStyle::UT_Always); 10265 10266 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Inline; 10267 CHECK_PARSE("AllowShortFunctionsOnASingleLine: None", 10268 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_None); 10269 CHECK_PARSE("AllowShortFunctionsOnASingleLine: Inline", 10270 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_Inline); 10271 CHECK_PARSE("AllowShortFunctionsOnASingleLine: Empty", 10272 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_Empty); 10273 CHECK_PARSE("AllowShortFunctionsOnASingleLine: All", 10274 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_All); 10275 // For backward compatibility: 10276 CHECK_PARSE("AllowShortFunctionsOnASingleLine: false", 10277 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_None); 10278 CHECK_PARSE("AllowShortFunctionsOnASingleLine: true", 10279 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_All); 10280 10281 Style.SpaceBeforeParens = FormatStyle::SBPO_Always; 10282 CHECK_PARSE("SpaceBeforeParens: Never", SpaceBeforeParens, 10283 FormatStyle::SBPO_Never); 10284 CHECK_PARSE("SpaceBeforeParens: Always", SpaceBeforeParens, 10285 FormatStyle::SBPO_Always); 10286 CHECK_PARSE("SpaceBeforeParens: ControlStatements", SpaceBeforeParens, 10287 FormatStyle::SBPO_ControlStatements); 10288 // For backward compatibility: 10289 CHECK_PARSE("SpaceAfterControlStatementKeyword: false", SpaceBeforeParens, 10290 FormatStyle::SBPO_Never); 10291 CHECK_PARSE("SpaceAfterControlStatementKeyword: true", SpaceBeforeParens, 10292 FormatStyle::SBPO_ControlStatements); 10293 10294 Style.ColumnLimit = 123; 10295 FormatStyle BaseStyle = getLLVMStyle(); 10296 CHECK_PARSE("BasedOnStyle: LLVM", ColumnLimit, BaseStyle.ColumnLimit); 10297 CHECK_PARSE("BasedOnStyle: LLVM\nColumnLimit: 1234", ColumnLimit, 1234u); 10298 10299 Style.BreakBeforeBraces = FormatStyle::BS_Stroustrup; 10300 CHECK_PARSE("BreakBeforeBraces: Attach", BreakBeforeBraces, 10301 FormatStyle::BS_Attach); 10302 CHECK_PARSE("BreakBeforeBraces: Linux", BreakBeforeBraces, 10303 FormatStyle::BS_Linux); 10304 CHECK_PARSE("BreakBeforeBraces: Mozilla", BreakBeforeBraces, 10305 FormatStyle::BS_Mozilla); 10306 CHECK_PARSE("BreakBeforeBraces: Stroustrup", BreakBeforeBraces, 10307 FormatStyle::BS_Stroustrup); 10308 CHECK_PARSE("BreakBeforeBraces: Allman", BreakBeforeBraces, 10309 FormatStyle::BS_Allman); 10310 CHECK_PARSE("BreakBeforeBraces: GNU", BreakBeforeBraces, FormatStyle::BS_GNU); 10311 CHECK_PARSE("BreakBeforeBraces: WebKit", BreakBeforeBraces, 10312 FormatStyle::BS_WebKit); 10313 CHECK_PARSE("BreakBeforeBraces: Custom", BreakBeforeBraces, 10314 FormatStyle::BS_Custom); 10315 10316 Style.AlwaysBreakAfterReturnType = FormatStyle::RTBS_All; 10317 CHECK_PARSE("AlwaysBreakAfterReturnType: None", AlwaysBreakAfterReturnType, 10318 FormatStyle::RTBS_None); 10319 CHECK_PARSE("AlwaysBreakAfterReturnType: All", AlwaysBreakAfterReturnType, 10320 FormatStyle::RTBS_All); 10321 CHECK_PARSE("AlwaysBreakAfterReturnType: TopLevel", 10322 AlwaysBreakAfterReturnType, FormatStyle::RTBS_TopLevel); 10323 CHECK_PARSE("AlwaysBreakAfterReturnType: AllDefinitions", 10324 AlwaysBreakAfterReturnType, FormatStyle::RTBS_AllDefinitions); 10325 CHECK_PARSE("AlwaysBreakAfterReturnType: TopLevelDefinitions", 10326 AlwaysBreakAfterReturnType, 10327 FormatStyle::RTBS_TopLevelDefinitions); 10328 10329 Style.AlwaysBreakAfterDefinitionReturnType = FormatStyle::DRTBS_All; 10330 CHECK_PARSE("AlwaysBreakAfterDefinitionReturnType: None", 10331 AlwaysBreakAfterDefinitionReturnType, FormatStyle::DRTBS_None); 10332 CHECK_PARSE("AlwaysBreakAfterDefinitionReturnType: All", 10333 AlwaysBreakAfterDefinitionReturnType, FormatStyle::DRTBS_All); 10334 CHECK_PARSE("AlwaysBreakAfterDefinitionReturnType: TopLevel", 10335 AlwaysBreakAfterDefinitionReturnType, 10336 FormatStyle::DRTBS_TopLevel); 10337 10338 Style.NamespaceIndentation = FormatStyle::NI_All; 10339 CHECK_PARSE("NamespaceIndentation: None", NamespaceIndentation, 10340 FormatStyle::NI_None); 10341 CHECK_PARSE("NamespaceIndentation: Inner", NamespaceIndentation, 10342 FormatStyle::NI_Inner); 10343 CHECK_PARSE("NamespaceIndentation: All", NamespaceIndentation, 10344 FormatStyle::NI_All); 10345 10346 // FIXME: This is required because parsing a configuration simply overwrites 10347 // the first N elements of the list instead of resetting it. 10348 Style.ForEachMacros.clear(); 10349 std::vector<std::string> BoostForeach; 10350 BoostForeach.push_back("BOOST_FOREACH"); 10351 CHECK_PARSE("ForEachMacros: [BOOST_FOREACH]", ForEachMacros, BoostForeach); 10352 std::vector<std::string> BoostAndQForeach; 10353 BoostAndQForeach.push_back("BOOST_FOREACH"); 10354 BoostAndQForeach.push_back("Q_FOREACH"); 10355 CHECK_PARSE("ForEachMacros: [BOOST_FOREACH, Q_FOREACH]", ForEachMacros, 10356 BoostAndQForeach); 10357 10358 Style.IncludeCategories.clear(); 10359 std::vector<FormatStyle::IncludeCategory> ExpectedCategories = {{"abc/.*", 2}, 10360 {".*", 1}}; 10361 CHECK_PARSE("IncludeCategories:\n" 10362 " - Regex: abc/.*\n" 10363 " Priority: 2\n" 10364 " - Regex: .*\n" 10365 " Priority: 1", 10366 IncludeCategories, ExpectedCategories); 10367 CHECK_PARSE("IncludeIsMainRegex: 'abc$'", IncludeIsMainRegex, "abc$"); 10368 } 10369 10370 TEST_F(FormatTest, ParsesConfigurationWithLanguages) { 10371 FormatStyle Style = {}; 10372 Style.Language = FormatStyle::LK_Cpp; 10373 CHECK_PARSE("Language: Cpp\n" 10374 "IndentWidth: 12", 10375 IndentWidth, 12u); 10376 EXPECT_EQ(parseConfiguration("Language: JavaScript\n" 10377 "IndentWidth: 34", 10378 &Style), 10379 ParseError::Unsuitable); 10380 EXPECT_EQ(12u, Style.IndentWidth); 10381 CHECK_PARSE("IndentWidth: 56", IndentWidth, 56u); 10382 EXPECT_EQ(FormatStyle::LK_Cpp, Style.Language); 10383 10384 Style.Language = FormatStyle::LK_JavaScript; 10385 CHECK_PARSE("Language: JavaScript\n" 10386 "IndentWidth: 12", 10387 IndentWidth, 12u); 10388 CHECK_PARSE("IndentWidth: 23", IndentWidth, 23u); 10389 EXPECT_EQ(parseConfiguration("Language: Cpp\n" 10390 "IndentWidth: 34", 10391 &Style), 10392 ParseError::Unsuitable); 10393 EXPECT_EQ(23u, Style.IndentWidth); 10394 CHECK_PARSE("IndentWidth: 56", IndentWidth, 56u); 10395 EXPECT_EQ(FormatStyle::LK_JavaScript, Style.Language); 10396 10397 CHECK_PARSE("BasedOnStyle: LLVM\n" 10398 "IndentWidth: 67", 10399 IndentWidth, 67u); 10400 10401 CHECK_PARSE("---\n" 10402 "Language: JavaScript\n" 10403 "IndentWidth: 12\n" 10404 "---\n" 10405 "Language: Cpp\n" 10406 "IndentWidth: 34\n" 10407 "...\n", 10408 IndentWidth, 12u); 10409 10410 Style.Language = FormatStyle::LK_Cpp; 10411 CHECK_PARSE("---\n" 10412 "Language: JavaScript\n" 10413 "IndentWidth: 12\n" 10414 "---\n" 10415 "Language: Cpp\n" 10416 "IndentWidth: 34\n" 10417 "...\n", 10418 IndentWidth, 34u); 10419 CHECK_PARSE("---\n" 10420 "IndentWidth: 78\n" 10421 "---\n" 10422 "Language: JavaScript\n" 10423 "IndentWidth: 56\n" 10424 "...\n", 10425 IndentWidth, 78u); 10426 10427 Style.ColumnLimit = 123; 10428 Style.IndentWidth = 234; 10429 Style.BreakBeforeBraces = FormatStyle::BS_Linux; 10430 Style.TabWidth = 345; 10431 EXPECT_FALSE(parseConfiguration("---\n" 10432 "IndentWidth: 456\n" 10433 "BreakBeforeBraces: Allman\n" 10434 "---\n" 10435 "Language: JavaScript\n" 10436 "IndentWidth: 111\n" 10437 "TabWidth: 111\n" 10438 "---\n" 10439 "Language: Cpp\n" 10440 "BreakBeforeBraces: Stroustrup\n" 10441 "TabWidth: 789\n" 10442 "...\n", 10443 &Style)); 10444 EXPECT_EQ(123u, Style.ColumnLimit); 10445 EXPECT_EQ(456u, Style.IndentWidth); 10446 EXPECT_EQ(FormatStyle::BS_Stroustrup, Style.BreakBeforeBraces); 10447 EXPECT_EQ(789u, Style.TabWidth); 10448 10449 EXPECT_EQ(parseConfiguration("---\n" 10450 "Language: JavaScript\n" 10451 "IndentWidth: 56\n" 10452 "---\n" 10453 "IndentWidth: 78\n" 10454 "...\n", 10455 &Style), 10456 ParseError::Error); 10457 EXPECT_EQ(parseConfiguration("---\n" 10458 "Language: JavaScript\n" 10459 "IndentWidth: 56\n" 10460 "---\n" 10461 "Language: JavaScript\n" 10462 "IndentWidth: 78\n" 10463 "...\n", 10464 &Style), 10465 ParseError::Error); 10466 10467 EXPECT_EQ(FormatStyle::LK_Cpp, Style.Language); 10468 } 10469 10470 #undef CHECK_PARSE 10471 10472 TEST_F(FormatTest, UsesLanguageForBasedOnStyle) { 10473 FormatStyle Style = {}; 10474 Style.Language = FormatStyle::LK_JavaScript; 10475 Style.BreakBeforeTernaryOperators = true; 10476 EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google", &Style).value()); 10477 EXPECT_FALSE(Style.BreakBeforeTernaryOperators); 10478 10479 Style.BreakBeforeTernaryOperators = true; 10480 EXPECT_EQ(0, parseConfiguration("---\n" 10481 "BasedOnStyle: Google\n" 10482 "---\n" 10483 "Language: JavaScript\n" 10484 "IndentWidth: 76\n" 10485 "...\n", 10486 &Style) 10487 .value()); 10488 EXPECT_FALSE(Style.BreakBeforeTernaryOperators); 10489 EXPECT_EQ(76u, Style.IndentWidth); 10490 EXPECT_EQ(FormatStyle::LK_JavaScript, Style.Language); 10491 } 10492 10493 TEST_F(FormatTest, ConfigurationRoundTripTest) { 10494 FormatStyle Style = getLLVMStyle(); 10495 std::string YAML = configurationAsText(Style); 10496 FormatStyle ParsedStyle = {}; 10497 ParsedStyle.Language = FormatStyle::LK_Cpp; 10498 EXPECT_EQ(0, parseConfiguration(YAML, &ParsedStyle).value()); 10499 EXPECT_EQ(Style, ParsedStyle); 10500 } 10501 10502 TEST_F(FormatTest, WorksFor8bitEncodings) { 10503 EXPECT_EQ("\"\xce\xe4\xed\xe0\xe6\xe4\xfb \xe2 \"\n" 10504 "\"\xf1\xf2\xf3\xe4\xb8\xed\xf3\xfe \"\n" 10505 "\"\xe7\xe8\xec\xed\xfe\xfe \"\n" 10506 "\"\xef\xee\xf0\xf3...\"", 10507 format("\"\xce\xe4\xed\xe0\xe6\xe4\xfb \xe2 " 10508 "\xf1\xf2\xf3\xe4\xb8\xed\xf3\xfe \xe7\xe8\xec\xed\xfe\xfe " 10509 "\xef\xee\xf0\xf3...\"", 10510 getLLVMStyleWithColumns(12))); 10511 } 10512 10513 TEST_F(FormatTest, HandlesUTF8BOM) { 10514 EXPECT_EQ("\xef\xbb\xbf", format("\xef\xbb\xbf")); 10515 EXPECT_EQ("\xef\xbb\xbf#include <iostream>", 10516 format("\xef\xbb\xbf#include <iostream>")); 10517 EXPECT_EQ("\xef\xbb\xbf\n#include <iostream>", 10518 format("\xef\xbb\xbf\n#include <iostream>")); 10519 } 10520 10521 // FIXME: Encode Cyrillic and CJK characters below to appease MS compilers. 10522 #if !defined(_MSC_VER) 10523 10524 TEST_F(FormatTest, CountsUTF8CharactersProperly) { 10525 verifyFormat("\"Однажды в студёную зимнюю пору...\"", 10526 getLLVMStyleWithColumns(35)); 10527 verifyFormat("\"一 二 三 四 五 六 七 八 九 十\"", 10528 getLLVMStyleWithColumns(31)); 10529 verifyFormat("// Однажды в студёную зимнюю пору...", 10530 getLLVMStyleWithColumns(36)); 10531 verifyFormat("// 一 二 三 四 五 六 七 八 九 十", getLLVMStyleWithColumns(32)); 10532 verifyFormat("/* Однажды в студёную зимнюю пору... */", 10533 getLLVMStyleWithColumns(39)); 10534 verifyFormat("/* 一 二 三 四 五 六 七 八 九 十 */", 10535 getLLVMStyleWithColumns(35)); 10536 } 10537 10538 TEST_F(FormatTest, SplitsUTF8Strings) { 10539 // Non-printable characters' width is currently considered to be the length in 10540 // bytes in UTF8. The characters can be displayed in very different manner 10541 // (zero-width, single width with a substitution glyph, expanded to their code 10542 // (e.g. "<8d>"), so there's no single correct way to handle them. 10543 EXPECT_EQ("\"aaaaÄ\"\n" 10544 "\"\xc2\x8d\";", 10545 format("\"aaaaÄ\xc2\x8d\";", getLLVMStyleWithColumns(10))); 10546 EXPECT_EQ("\"aaaaaaaÄ\"\n" 10547 "\"\xc2\x8d\";", 10548 format("\"aaaaaaaÄ\xc2\x8d\";", getLLVMStyleWithColumns(10))); 10549 EXPECT_EQ("\"Однажды, в \"\n" 10550 "\"студёную \"\n" 10551 "\"зимнюю \"\n" 10552 "\"пору,\"", 10553 format("\"Однажды, в студёную зимнюю пору,\"", 10554 getLLVMStyleWithColumns(13))); 10555 EXPECT_EQ( 10556 "\"一 二 三 \"\n" 10557 "\"四 五六 \"\n" 10558 "\"七 八 九 \"\n" 10559 "\"十\"", 10560 format("\"一 二 三 四 五六 七 八 九 十\"", getLLVMStyleWithColumns(11))); 10561 EXPECT_EQ("\"一\t二 \"\n" 10562 "\"\t三 \"\n" 10563 "\"四 五\t六 \"\n" 10564 "\"\t七 \"\n" 10565 "\"八九十\tqq\"", 10566 format("\"一\t二 \t三 四 五\t六 \t七 八九十\tqq\"", 10567 getLLVMStyleWithColumns(11))); 10568 10569 // UTF8 character in an escape sequence. 10570 EXPECT_EQ("\"aaaaaa\"\n" 10571 "\"\\\xC2\x8D\"", 10572 format("\"aaaaaa\\\xC2\x8D\"", getLLVMStyleWithColumns(10))); 10573 } 10574 10575 TEST_F(FormatTest, HandlesDoubleWidthCharsInMultiLineStrings) { 10576 EXPECT_EQ("const char *sssss =\n" 10577 " \"一二三四五六七八\\\n" 10578 " 九 十\";", 10579 format("const char *sssss = \"一二三四五六七八\\\n" 10580 " 九 十\";", 10581 getLLVMStyleWithColumns(30))); 10582 } 10583 10584 TEST_F(FormatTest, SplitsUTF8LineComments) { 10585 EXPECT_EQ("// aaaaÄ\xc2\x8d", 10586 format("// aaaaÄ\xc2\x8d", getLLVMStyleWithColumns(10))); 10587 EXPECT_EQ("// Я из лесу\n" 10588 "// вышел; был\n" 10589 "// сильный\n" 10590 "// мороз.", 10591 format("// Я из лесу вышел; был сильный мороз.", 10592 getLLVMStyleWithColumns(13))); 10593 EXPECT_EQ("// 一二三\n" 10594 "// 四五六七\n" 10595 "// 八 九\n" 10596 "// 十", 10597 format("// 一二三 四五六七 八 九 十", getLLVMStyleWithColumns(9))); 10598 } 10599 10600 TEST_F(FormatTest, SplitsUTF8BlockComments) { 10601 EXPECT_EQ("/* Гляжу,\n" 10602 " * поднимается\n" 10603 " * медленно в\n" 10604 " * гору\n" 10605 " * Лошадка,\n" 10606 " * везущая\n" 10607 " * хворосту\n" 10608 " * воз. */", 10609 format("/* Гляжу, поднимается медленно в гору\n" 10610 " * Лошадка, везущая хворосту воз. */", 10611 getLLVMStyleWithColumns(13))); 10612 EXPECT_EQ( 10613 "/* 一二三\n" 10614 " * 四五六七\n" 10615 " * 八 九\n" 10616 " * 十 */", 10617 format("/* 一二三 四五六七 八 九 十 */", getLLVMStyleWithColumns(9))); 10618 EXPECT_EQ("/* �������� ��������\n" 10619 " * ��������\n" 10620 " * ������-�� */", 10621 format("/* �������� �������� �������� ������-�� */", getLLVMStyleWithColumns(12))); 10622 } 10623 10624 #endif // _MSC_VER 10625 10626 TEST_F(FormatTest, ConstructorInitializerIndentWidth) { 10627 FormatStyle Style = getLLVMStyle(); 10628 10629 Style.ConstructorInitializerIndentWidth = 4; 10630 verifyFormat( 10631 "SomeClass::Constructor()\n" 10632 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 10633 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}", 10634 Style); 10635 10636 Style.ConstructorInitializerIndentWidth = 2; 10637 verifyFormat( 10638 "SomeClass::Constructor()\n" 10639 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 10640 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}", 10641 Style); 10642 10643 Style.ConstructorInitializerIndentWidth = 0; 10644 verifyFormat( 10645 "SomeClass::Constructor()\n" 10646 ": aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 10647 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}", 10648 Style); 10649 Style.AlignAfterOpenBracket = FormatStyle::BAS_AlwaysBreak; 10650 verifyFormat( 10651 "SomeLongTemplateVariableName<\n" 10652 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>", 10653 Style); 10654 verifyFormat( 10655 "bool smaller = 1 < bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(\n" 10656 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 10657 Style); 10658 } 10659 10660 TEST_F(FormatTest, BreakConstructorInitializersBeforeComma) { 10661 FormatStyle Style = getLLVMStyle(); 10662 Style.BreakConstructorInitializersBeforeComma = true; 10663 Style.ConstructorInitializerIndentWidth = 4; 10664 verifyFormat("SomeClass::Constructor()\n" 10665 " : a(a)\n" 10666 " , b(b)\n" 10667 " , c(c) {}", 10668 Style); 10669 verifyFormat("SomeClass::Constructor()\n" 10670 " : a(a) {}", 10671 Style); 10672 10673 Style.ColumnLimit = 0; 10674 verifyFormat("SomeClass::Constructor()\n" 10675 " : a(a) {}", 10676 Style); 10677 verifyFormat("SomeClass::Constructor() noexcept\n" 10678 " : a(a) {}", 10679 Style); 10680 verifyFormat("SomeClass::Constructor()\n" 10681 " : a(a)\n" 10682 " , b(b)\n" 10683 " , c(c) {}", 10684 Style); 10685 verifyFormat("SomeClass::Constructor()\n" 10686 " : a(a) {\n" 10687 " foo();\n" 10688 " bar();\n" 10689 "}", 10690 Style); 10691 10692 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_None; 10693 verifyFormat("SomeClass::Constructor()\n" 10694 " : a(a)\n" 10695 " , b(b)\n" 10696 " , c(c) {\n}", 10697 Style); 10698 verifyFormat("SomeClass::Constructor()\n" 10699 " : a(a) {\n}", 10700 Style); 10701 10702 Style.ColumnLimit = 80; 10703 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_All; 10704 Style.ConstructorInitializerIndentWidth = 2; 10705 verifyFormat("SomeClass::Constructor()\n" 10706 " : a(a)\n" 10707 " , b(b)\n" 10708 " , c(c) {}", 10709 Style); 10710 10711 Style.ConstructorInitializerIndentWidth = 0; 10712 verifyFormat("SomeClass::Constructor()\n" 10713 ": a(a)\n" 10714 ", b(b)\n" 10715 ", c(c) {}", 10716 Style); 10717 10718 Style.ConstructorInitializerAllOnOneLineOrOnePerLine = true; 10719 Style.ConstructorInitializerIndentWidth = 4; 10720 verifyFormat("SomeClass::Constructor() : aaaaaaaa(aaaaaaaa) {}", Style); 10721 verifyFormat( 10722 "SomeClass::Constructor() : aaaaa(aaaaa), aaaaa(aaaaa), aaaaa(aaaaa)\n", 10723 Style); 10724 verifyFormat( 10725 "SomeClass::Constructor()\n" 10726 " : aaaaaaaa(aaaaaaaa), aaaaaaaa(aaaaaaaa), aaaaaaaa(aaaaaaaa) {}", 10727 Style); 10728 Style.ConstructorInitializerIndentWidth = 4; 10729 Style.ColumnLimit = 60; 10730 verifyFormat("SomeClass::Constructor()\n" 10731 " : aaaaaaaa(aaaaaaaa)\n" 10732 " , aaaaaaaa(aaaaaaaa)\n" 10733 " , aaaaaaaa(aaaaaaaa) {}", 10734 Style); 10735 } 10736 10737 TEST_F(FormatTest, Destructors) { 10738 verifyFormat("void F(int &i) { i.~int(); }"); 10739 verifyFormat("void F(int &i) { i->~int(); }"); 10740 } 10741 10742 TEST_F(FormatTest, FormatsWithWebKitStyle) { 10743 FormatStyle Style = getWebKitStyle(); 10744 10745 // Don't indent in outer namespaces. 10746 verifyFormat("namespace outer {\n" 10747 "int i;\n" 10748 "namespace inner {\n" 10749 " int i;\n" 10750 "} // namespace inner\n" 10751 "} // namespace outer\n" 10752 "namespace other_outer {\n" 10753 "int i;\n" 10754 "}", 10755 Style); 10756 10757 // Don't indent case labels. 10758 verifyFormat("switch (variable) {\n" 10759 "case 1:\n" 10760 "case 2:\n" 10761 " doSomething();\n" 10762 " break;\n" 10763 "default:\n" 10764 " ++variable;\n" 10765 "}", 10766 Style); 10767 10768 // Wrap before binary operators. 10769 EXPECT_EQ("void f()\n" 10770 "{\n" 10771 " if (aaaaaaaaaaaaaaaa\n" 10772 " && bbbbbbbbbbbbbbbbbbbbbbbb\n" 10773 " && (cccccccccccccccccccccccccc || dddddddddddddddddddd))\n" 10774 " return;\n" 10775 "}", 10776 format("void f() {\n" 10777 "if (aaaaaaaaaaaaaaaa\n" 10778 "&& bbbbbbbbbbbbbbbbbbbbbbbb\n" 10779 "&& (cccccccccccccccccccccccccc || dddddddddddddddddddd))\n" 10780 "return;\n" 10781 "}", 10782 Style)); 10783 10784 // Allow functions on a single line. 10785 verifyFormat("void f() { return; }", Style); 10786 10787 // Constructor initializers are formatted one per line with the "," on the 10788 // new line. 10789 verifyFormat("Constructor()\n" 10790 " : aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 10791 " , aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaa, // break\n" 10792 " aaaaaaaaaaaaaa)\n" 10793 " , aaaaaaaaaaaaaaaaaaaaaaa()\n" 10794 "{\n" 10795 "}", 10796 Style); 10797 verifyFormat("SomeClass::Constructor()\n" 10798 " : a(a)\n" 10799 "{\n" 10800 "}", 10801 Style); 10802 EXPECT_EQ("SomeClass::Constructor()\n" 10803 " : a(a)\n" 10804 "{\n" 10805 "}", 10806 format("SomeClass::Constructor():a(a){}", Style)); 10807 verifyFormat("SomeClass::Constructor()\n" 10808 " : a(a)\n" 10809 " , b(b)\n" 10810 " , c(c)\n" 10811 "{\n" 10812 "}", 10813 Style); 10814 verifyFormat("SomeClass::Constructor()\n" 10815 " : a(a)\n" 10816 "{\n" 10817 " foo();\n" 10818 " bar();\n" 10819 "}", 10820 Style); 10821 10822 // Access specifiers should be aligned left. 10823 verifyFormat("class C {\n" 10824 "public:\n" 10825 " int i;\n" 10826 "};", 10827 Style); 10828 10829 // Do not align comments. 10830 verifyFormat("int a; // Do not\n" 10831 "double b; // align comments.", 10832 Style); 10833 10834 // Do not align operands. 10835 EXPECT_EQ("ASSERT(aaaa\n" 10836 " || bbbb);", 10837 format("ASSERT ( aaaa\n||bbbb);", Style)); 10838 10839 // Accept input's line breaks. 10840 EXPECT_EQ("if (aaaaaaaaaaaaaaa\n" 10841 " || bbbbbbbbbbbbbbb) {\n" 10842 " i++;\n" 10843 "}", 10844 format("if (aaaaaaaaaaaaaaa\n" 10845 "|| bbbbbbbbbbbbbbb) { i++; }", 10846 Style)); 10847 EXPECT_EQ("if (aaaaaaaaaaaaaaa || bbbbbbbbbbbbbbb) {\n" 10848 " i++;\n" 10849 "}", 10850 format("if (aaaaaaaaaaaaaaa || bbbbbbbbbbbbbbb) { i++; }", Style)); 10851 10852 // Don't automatically break all macro definitions (llvm.org/PR17842). 10853 verifyFormat("#define aNumber 10", Style); 10854 // However, generally keep the line breaks that the user authored. 10855 EXPECT_EQ("#define aNumber \\\n" 10856 " 10", 10857 format("#define aNumber \\\n" 10858 " 10", 10859 Style)); 10860 10861 // Keep empty and one-element array literals on a single line. 10862 EXPECT_EQ("NSArray* a = [[NSArray alloc] initWithArray:@[]\n" 10863 " copyItems:YES];", 10864 format("NSArray*a=[[NSArray alloc] initWithArray:@[]\n" 10865 "copyItems:YES];", 10866 Style)); 10867 EXPECT_EQ("NSArray* a = [[NSArray alloc] initWithArray:@[ @\"a\" ]\n" 10868 " copyItems:YES];", 10869 format("NSArray*a=[[NSArray alloc]initWithArray:@[ @\"a\" ]\n" 10870 " copyItems:YES];", 10871 Style)); 10872 // FIXME: This does not seem right, there should be more indentation before 10873 // the array literal's entries. Nested blocks have the same problem. 10874 EXPECT_EQ("NSArray* a = [[NSArray alloc] initWithArray:@[\n" 10875 " @\"a\",\n" 10876 " @\"a\"\n" 10877 "]\n" 10878 " copyItems:YES];", 10879 format("NSArray* a = [[NSArray alloc] initWithArray:@[\n" 10880 " @\"a\",\n" 10881 " @\"a\"\n" 10882 " ]\n" 10883 " copyItems:YES];", 10884 Style)); 10885 EXPECT_EQ( 10886 "NSArray* a = [[NSArray alloc] initWithArray:@[ @\"a\", @\"a\" ]\n" 10887 " copyItems:YES];", 10888 format("NSArray* a = [[NSArray alloc] initWithArray:@[ @\"a\", @\"a\" ]\n" 10889 " copyItems:YES];", 10890 Style)); 10891 10892 verifyFormat("[self.a b:c c:d];", Style); 10893 EXPECT_EQ("[self.a b:c\n" 10894 " c:d];", 10895 format("[self.a b:c\n" 10896 "c:d];", 10897 Style)); 10898 } 10899 10900 TEST_F(FormatTest, FormatsLambdas) { 10901 verifyFormat("int c = [b]() mutable { return [&b] { return b++; }(); }();\n"); 10902 verifyFormat("int c = [&] { [=] { return b++; }(); }();\n"); 10903 verifyFormat("int c = [&, &a, a] { [=, c, &d] { return b++; }(); }();\n"); 10904 verifyFormat("int c = [&a, &a, a] { [=, a, b, &c] { return b++; }(); }();\n"); 10905 verifyFormat("auto c = {[&a, &a, a] { [=, a, b, &c] { return b++; }(); }}\n"); 10906 verifyFormat("auto c = {[&a, &a, a] { [=, a, b, &c] {}(); }}\n"); 10907 verifyFormat("void f() {\n" 10908 " other(x.begin(), x.end(), [&](int, int) { return 1; });\n" 10909 "}\n"); 10910 verifyFormat("void f() {\n" 10911 " other(x.begin(), //\n" 10912 " x.end(), //\n" 10913 " [&](int, int) { return 1; });\n" 10914 "}\n"); 10915 verifyFormat("SomeFunction([]() { // A cool function...\n" 10916 " return 43;\n" 10917 "});"); 10918 EXPECT_EQ("SomeFunction([]() {\n" 10919 "#define A a\n" 10920 " return 43;\n" 10921 "});", 10922 format("SomeFunction([](){\n" 10923 "#define A a\n" 10924 "return 43;\n" 10925 "});")); 10926 verifyFormat("void f() {\n" 10927 " SomeFunction([](decltype(x), A *a) {});\n" 10928 "}"); 10929 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 10930 " [](const aaaaaaaaaa &a) { return a; });"); 10931 verifyFormat("string abc = SomeFunction(aaaaaaaaaaaaa, aaaaa, []() {\n" 10932 " SomeOtherFunctioooooooooooooooooooooooooon();\n" 10933 "});"); 10934 verifyFormat("Constructor()\n" 10935 " : Field([] { // comment\n" 10936 " int i;\n" 10937 " }) {}"); 10938 verifyFormat("auto my_lambda = [](const string &some_parameter) {\n" 10939 " return some_parameter.size();\n" 10940 "};"); 10941 verifyFormat("std::function<std::string(const std::string &)> my_lambda =\n" 10942 " [](const string &s) { return s; };"); 10943 verifyFormat("int i = aaaaaa ? 1 //\n" 10944 " : [] {\n" 10945 " return 2; //\n" 10946 " }();"); 10947 verifyFormat("llvm::errs() << \"number of twos is \"\n" 10948 " << std::count_if(v.begin(), v.end(), [](int x) {\n" 10949 " return x == 2; // force break\n" 10950 " });"); 10951 verifyFormat("return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa([=](\n" 10952 " int iiiiiiiiiiii) {\n" 10953 " return aaaaaaaaaaaaaaaaaaaaaaa != aaaaaaaaaaaaaaaaaaaaaaa;\n" 10954 "});", 10955 getLLVMStyleWithColumns(60)); 10956 verifyFormat("SomeFunction({[&] {\n" 10957 " // comment\n" 10958 " },\n" 10959 " [&] {\n" 10960 " // comment\n" 10961 " }});"); 10962 verifyFormat("SomeFunction({[&] {\n" 10963 " // comment\n" 10964 "}});"); 10965 verifyFormat("virtual aaaaaaaaaaaaaaaa(std::function<bool()> bbbbbbbbbbbb =\n" 10966 " [&]() { return true; },\n" 10967 " aaaaa aaaaaaaaa);"); 10968 10969 // Lambdas with return types. 10970 verifyFormat("int c = []() -> int { return 2; }();\n"); 10971 verifyFormat("int c = []() -> int * { return 2; }();\n"); 10972 verifyFormat("int c = []() -> vector<int> { return {2}; }();\n"); 10973 verifyFormat("Foo([]() -> std::vector<int> { return {2}; }());"); 10974 verifyGoogleFormat("auto a = [&b, c](D* d) -> D* {};"); 10975 verifyGoogleFormat("auto a = [&b, c](D* d) -> pair<D*, D*> {};"); 10976 verifyGoogleFormat("auto a = [&b, c](D* d) -> D& {};"); 10977 verifyGoogleFormat("auto a = [&b, c](D* d) -> const D* {};"); 10978 verifyFormat("[a, a]() -> a<1> {};"); 10979 verifyFormat("auto aaaaaaaa = [](int i, // break for some reason\n" 10980 " int j) -> int {\n" 10981 " return ffffffffffffffffffffffffffffffffffffffffffff(i * j);\n" 10982 "};"); 10983 verifyFormat( 10984 "aaaaaaaaaaaaaaaaaaaaaa(\n" 10985 " [](aaaaaaaaaaaaaaaaaaaaaaaaaaa &aaa) -> aaaaaaaaaaaaaaaa {\n" 10986 " return aaaaaaaaaaaaaaaaa;\n" 10987 " });", 10988 getLLVMStyleWithColumns(70)); 10989 10990 // Multiple lambdas in the same parentheses change indentation rules. 10991 verifyFormat("SomeFunction(\n" 10992 " []() {\n" 10993 " int i = 42;\n" 10994 " return i;\n" 10995 " },\n" 10996 " []() {\n" 10997 " int j = 43;\n" 10998 " return j;\n" 10999 " });"); 11000 11001 // More complex introducers. 11002 verifyFormat("return [i, args...] {};"); 11003 11004 // Not lambdas. 11005 verifyFormat("constexpr char hello[]{\"hello\"};"); 11006 verifyFormat("double &operator[](int i) { return 0; }\n" 11007 "int i;"); 11008 verifyFormat("std::unique_ptr<int[]> foo() {}"); 11009 verifyFormat("int i = a[a][a]->f();"); 11010 verifyFormat("int i = (*b)[a]->f();"); 11011 11012 // Other corner cases. 11013 verifyFormat("void f() {\n" 11014 " bar([]() {} // Did not respect SpacesBeforeTrailingComments\n" 11015 " );\n" 11016 "}"); 11017 11018 // Lambdas created through weird macros. 11019 verifyFormat("void f() {\n" 11020 " MACRO((const AA &a) { return 1; });\n" 11021 " MACRO((AA &a) { return 1; });\n" 11022 "}"); 11023 11024 verifyFormat("if (blah_blah(whatever, whatever, [] {\n" 11025 " doo_dah();\n" 11026 " doo_dah();\n" 11027 " })) {\n" 11028 "}"); 11029 verifyFormat("auto lambda = []() {\n" 11030 " int a = 2\n" 11031 "#if A\n" 11032 " + 2\n" 11033 "#endif\n" 11034 " ;\n" 11035 "};"); 11036 } 11037 11038 TEST_F(FormatTest, FormatsBlocks) { 11039 FormatStyle ShortBlocks = getLLVMStyle(); 11040 ShortBlocks.AllowShortBlocksOnASingleLine = true; 11041 verifyFormat("int (^Block)(int, int);", ShortBlocks); 11042 verifyFormat("int (^Block1)(int, int) = ^(int i, int j)", ShortBlocks); 11043 verifyFormat("void (^block)(int) = ^(id test) { int i; };", ShortBlocks); 11044 verifyFormat("void (^block)(int) = ^(int test) { int i; };", ShortBlocks); 11045 verifyFormat("void (^block)(int) = ^id(int test) { int i; };", ShortBlocks); 11046 verifyFormat("void (^block)(int) = ^int(int test) { int i; };", ShortBlocks); 11047 11048 verifyFormat("foo(^{ bar(); });", ShortBlocks); 11049 verifyFormat("foo(a, ^{ bar(); });", ShortBlocks); 11050 verifyFormat("{ void (^block)(Object *x); }", ShortBlocks); 11051 11052 verifyFormat("[operation setCompletionBlock:^{\n" 11053 " [self onOperationDone];\n" 11054 "}];"); 11055 verifyFormat("int i = {[operation setCompletionBlock:^{\n" 11056 " [self onOperationDone];\n" 11057 "}]};"); 11058 verifyFormat("[operation setCompletionBlock:^(int *i) {\n" 11059 " f();\n" 11060 "}];"); 11061 verifyFormat("int a = [operation block:^int(int *i) {\n" 11062 " return 1;\n" 11063 "}];"); 11064 verifyFormat("[myObject doSomethingWith:arg1\n" 11065 " aaa:^int(int *a) {\n" 11066 " return 1;\n" 11067 " }\n" 11068 " bbb:f(a * bbbbbbbb)];"); 11069 11070 verifyFormat("[operation setCompletionBlock:^{\n" 11071 " [self.delegate newDataAvailable];\n" 11072 "}];", 11073 getLLVMStyleWithColumns(60)); 11074 verifyFormat("dispatch_async(_fileIOQueue, ^{\n" 11075 " NSString *path = [self sessionFilePath];\n" 11076 " if (path) {\n" 11077 " // ...\n" 11078 " }\n" 11079 "});"); 11080 verifyFormat("[[SessionService sharedService]\n" 11081 " loadWindowWithCompletionBlock:^(SessionWindow *window) {\n" 11082 " if (window) {\n" 11083 " [self windowDidLoad:window];\n" 11084 " } else {\n" 11085 " [self errorLoadingWindow];\n" 11086 " }\n" 11087 " }];"); 11088 verifyFormat("void (^largeBlock)(void) = ^{\n" 11089 " // ...\n" 11090 "};\n", 11091 getLLVMStyleWithColumns(40)); 11092 verifyFormat("[[SessionService sharedService]\n" 11093 " loadWindowWithCompletionBlock: //\n" 11094 " ^(SessionWindow *window) {\n" 11095 " if (window) {\n" 11096 " [self windowDidLoad:window];\n" 11097 " } else {\n" 11098 " [self errorLoadingWindow];\n" 11099 " }\n" 11100 " }];", 11101 getLLVMStyleWithColumns(60)); 11102 verifyFormat("[myObject doSomethingWith:arg1\n" 11103 " firstBlock:^(Foo *a) {\n" 11104 " // ...\n" 11105 " int i;\n" 11106 " }\n" 11107 " secondBlock:^(Bar *b) {\n" 11108 " // ...\n" 11109 " int i;\n" 11110 " }\n" 11111 " thirdBlock:^Foo(Bar *b) {\n" 11112 " // ...\n" 11113 " int i;\n" 11114 " }];"); 11115 verifyFormat("[myObject doSomethingWith:arg1\n" 11116 " firstBlock:-1\n" 11117 " secondBlock:^(Bar *b) {\n" 11118 " // ...\n" 11119 " int i;\n" 11120 " }];"); 11121 11122 verifyFormat("f(^{\n" 11123 " @autoreleasepool {\n" 11124 " if (a) {\n" 11125 " g();\n" 11126 " }\n" 11127 " }\n" 11128 "});"); 11129 verifyFormat("Block b = ^int *(A *a, B *b) {}"); 11130 11131 FormatStyle FourIndent = getLLVMStyle(); 11132 FourIndent.ObjCBlockIndentWidth = 4; 11133 verifyFormat("[operation setCompletionBlock:^{\n" 11134 " [self onOperationDone];\n" 11135 "}];", 11136 FourIndent); 11137 } 11138 11139 TEST_F(FormatTest, FormatsBlocksWithZeroColumnWidth) { 11140 FormatStyle ZeroColumn = getLLVMStyle(); 11141 ZeroColumn.ColumnLimit = 0; 11142 11143 verifyFormat("[[SessionService sharedService] " 11144 "loadWindowWithCompletionBlock:^(SessionWindow *window) {\n" 11145 " if (window) {\n" 11146 " [self windowDidLoad:window];\n" 11147 " } else {\n" 11148 " [self errorLoadingWindow];\n" 11149 " }\n" 11150 "}];", 11151 ZeroColumn); 11152 EXPECT_EQ("[[SessionService sharedService]\n" 11153 " loadWindowWithCompletionBlock:^(SessionWindow *window) {\n" 11154 " if (window) {\n" 11155 " [self windowDidLoad:window];\n" 11156 " } else {\n" 11157 " [self errorLoadingWindow];\n" 11158 " }\n" 11159 " }];", 11160 format("[[SessionService sharedService]\n" 11161 "loadWindowWithCompletionBlock:^(SessionWindow *window) {\n" 11162 " if (window) {\n" 11163 " [self windowDidLoad:window];\n" 11164 " } else {\n" 11165 " [self errorLoadingWindow];\n" 11166 " }\n" 11167 "}];", 11168 ZeroColumn)); 11169 verifyFormat("[myObject doSomethingWith:arg1\n" 11170 " firstBlock:^(Foo *a) {\n" 11171 " // ...\n" 11172 " int i;\n" 11173 " }\n" 11174 " secondBlock:^(Bar *b) {\n" 11175 " // ...\n" 11176 " int i;\n" 11177 " }\n" 11178 " thirdBlock:^Foo(Bar *b) {\n" 11179 " // ...\n" 11180 " int i;\n" 11181 " }];", 11182 ZeroColumn); 11183 verifyFormat("f(^{\n" 11184 " @autoreleasepool {\n" 11185 " if (a) {\n" 11186 " g();\n" 11187 " }\n" 11188 " }\n" 11189 "});", 11190 ZeroColumn); 11191 verifyFormat("void (^largeBlock)(void) = ^{\n" 11192 " // ...\n" 11193 "};", 11194 ZeroColumn); 11195 11196 ZeroColumn.AllowShortBlocksOnASingleLine = true; 11197 EXPECT_EQ("void (^largeBlock)(void) = ^{ int i; };", 11198 format("void (^largeBlock)(void) = ^{ int i; };", ZeroColumn)); 11199 ZeroColumn.AllowShortBlocksOnASingleLine = false; 11200 EXPECT_EQ("void (^largeBlock)(void) = ^{\n" 11201 " int i;\n" 11202 "};", 11203 format("void (^largeBlock)(void) = ^{ int i; };", ZeroColumn)); 11204 } 11205 11206 TEST_F(FormatTest, SupportsCRLF) { 11207 EXPECT_EQ("int a;\r\n" 11208 "int b;\r\n" 11209 "int c;\r\n", 11210 format("int a;\r\n" 11211 " int b;\r\n" 11212 " int c;\r\n", 11213 getLLVMStyle())); 11214 EXPECT_EQ("int a;\r\n" 11215 "int b;\r\n" 11216 "int c;\r\n", 11217 format("int a;\r\n" 11218 " int b;\n" 11219 " int c;\r\n", 11220 getLLVMStyle())); 11221 EXPECT_EQ("int a;\n" 11222 "int b;\n" 11223 "int c;\n", 11224 format("int a;\r\n" 11225 " int b;\n" 11226 " int c;\n", 11227 getLLVMStyle())); 11228 EXPECT_EQ("\"aaaaaaa \"\r\n" 11229 "\"bbbbbbb\";\r\n", 11230 format("\"aaaaaaa bbbbbbb\";\r\n", getLLVMStyleWithColumns(10))); 11231 EXPECT_EQ("#define A \\\r\n" 11232 " b; \\\r\n" 11233 " c; \\\r\n" 11234 " d;\r\n", 11235 format("#define A \\\r\n" 11236 " b; \\\r\n" 11237 " c; d; \r\n", 11238 getGoogleStyle())); 11239 11240 EXPECT_EQ("/*\r\n" 11241 "multi line block comments\r\n" 11242 "should not introduce\r\n" 11243 "an extra carriage return\r\n" 11244 "*/\r\n", 11245 format("/*\r\n" 11246 "multi line block comments\r\n" 11247 "should not introduce\r\n" 11248 "an extra carriage return\r\n" 11249 "*/\r\n")); 11250 } 11251 11252 TEST_F(FormatTest, MunchSemicolonAfterBlocks) { 11253 verifyFormat("MY_CLASS(C) {\n" 11254 " int i;\n" 11255 " int j;\n" 11256 "};"); 11257 } 11258 11259 TEST_F(FormatTest, ConfigurableContinuationIndentWidth) { 11260 FormatStyle TwoIndent = getLLVMStyleWithColumns(15); 11261 TwoIndent.ContinuationIndentWidth = 2; 11262 11263 EXPECT_EQ("int i =\n" 11264 " longFunction(\n" 11265 " arg);", 11266 format("int i = longFunction(arg);", TwoIndent)); 11267 11268 FormatStyle SixIndent = getLLVMStyleWithColumns(20); 11269 SixIndent.ContinuationIndentWidth = 6; 11270 11271 EXPECT_EQ("int i =\n" 11272 " longFunction(\n" 11273 " arg);", 11274 format("int i = longFunction(arg);", SixIndent)); 11275 } 11276 11277 TEST_F(FormatTest, SpacesInAngles) { 11278 FormatStyle Spaces = getLLVMStyle(); 11279 Spaces.SpacesInAngles = true; 11280 11281 verifyFormat("static_cast< int >(arg);", Spaces); 11282 verifyFormat("template < typename T0, typename T1 > void f() {}", Spaces); 11283 verifyFormat("f< int, float >();", Spaces); 11284 verifyFormat("template <> g() {}", Spaces); 11285 verifyFormat("template < std::vector< int > > f() {}", Spaces); 11286 verifyFormat("std::function< void(int, int) > fct;", Spaces); 11287 verifyFormat("void inFunction() { std::function< void(int, int) > fct; }", 11288 Spaces); 11289 11290 Spaces.Standard = FormatStyle::LS_Cpp03; 11291 Spaces.SpacesInAngles = true; 11292 verifyFormat("A< A< int > >();", Spaces); 11293 11294 Spaces.SpacesInAngles = false; 11295 verifyFormat("A<A<int> >();", Spaces); 11296 11297 Spaces.Standard = FormatStyle::LS_Cpp11; 11298 Spaces.SpacesInAngles = true; 11299 verifyFormat("A< A< int > >();", Spaces); 11300 11301 Spaces.SpacesInAngles = false; 11302 verifyFormat("A<A<int>>();", Spaces); 11303 } 11304 11305 TEST_F(FormatTest, TripleAngleBrackets) { 11306 verifyFormat("f<<<1, 1>>>();"); 11307 verifyFormat("f<<<1, 1, 1, s>>>();"); 11308 verifyFormat("f<<<a, b, c, d>>>();"); 11309 EXPECT_EQ("f<<<1, 1>>>();", format("f <<< 1, 1 >>> ();")); 11310 verifyFormat("f<param><<<1, 1>>>();"); 11311 verifyFormat("f<1><<<1, 1>>>();"); 11312 EXPECT_EQ("f<param><<<1, 1>>>();", format("f< param > <<< 1, 1 >>> ();")); 11313 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" 11314 "aaaaaaaaaaa<<<\n 1, 1>>>();"); 11315 } 11316 11317 TEST_F(FormatTest, MergeLessLessAtEnd) { 11318 verifyFormat("<<"); 11319 EXPECT_EQ("< < <", format("\\\n<<<")); 11320 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" 11321 "aaallvm::outs() <<"); 11322 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" 11323 "aaaallvm::outs()\n <<"); 11324 } 11325 11326 TEST_F(FormatTest, HandleUnbalancedImplicitBracesAcrossPPBranches) { 11327 std::string code = "#if A\n" 11328 "#if B\n" 11329 "a.\n" 11330 "#endif\n" 11331 " a = 1;\n" 11332 "#else\n" 11333 "#endif\n" 11334 "#if C\n" 11335 "#else\n" 11336 "#endif\n"; 11337 EXPECT_EQ(code, format(code)); 11338 } 11339 11340 TEST_F(FormatTest, HandleConflictMarkers) { 11341 // Git/SVN conflict markers. 11342 EXPECT_EQ("int a;\n" 11343 "void f() {\n" 11344 " callme(some(parameter1,\n" 11345 "<<<<<<< text by the vcs\n" 11346 " parameter2),\n" 11347 "||||||| text by the vcs\n" 11348 " parameter2),\n" 11349 " parameter3,\n" 11350 "======= text by the vcs\n" 11351 " parameter2, parameter3),\n" 11352 ">>>>>>> text by the vcs\n" 11353 " otherparameter);\n", 11354 format("int a;\n" 11355 "void f() {\n" 11356 " callme(some(parameter1,\n" 11357 "<<<<<<< text by the vcs\n" 11358 " parameter2),\n" 11359 "||||||| text by the vcs\n" 11360 " parameter2),\n" 11361 " parameter3,\n" 11362 "======= text by the vcs\n" 11363 " parameter2,\n" 11364 " parameter3),\n" 11365 ">>>>>>> text by the vcs\n" 11366 " otherparameter);\n")); 11367 11368 // Perforce markers. 11369 EXPECT_EQ("void f() {\n" 11370 " function(\n" 11371 ">>>> text by the vcs\n" 11372 " parameter,\n" 11373 "==== text by the vcs\n" 11374 " parameter,\n" 11375 "==== text by the vcs\n" 11376 " parameter,\n" 11377 "<<<< text by the vcs\n" 11378 " parameter);\n", 11379 format("void f() {\n" 11380 " function(\n" 11381 ">>>> text by the vcs\n" 11382 " parameter,\n" 11383 "==== text by the vcs\n" 11384 " parameter,\n" 11385 "==== text by the vcs\n" 11386 " parameter,\n" 11387 "<<<< text by the vcs\n" 11388 " parameter);\n")); 11389 11390 EXPECT_EQ("<<<<<<<\n" 11391 "|||||||\n" 11392 "=======\n" 11393 ">>>>>>>", 11394 format("<<<<<<<\n" 11395 "|||||||\n" 11396 "=======\n" 11397 ">>>>>>>")); 11398 11399 EXPECT_EQ("<<<<<<<\n" 11400 "|||||||\n" 11401 "int i;\n" 11402 "=======\n" 11403 ">>>>>>>", 11404 format("<<<<<<<\n" 11405 "|||||||\n" 11406 "int i;\n" 11407 "=======\n" 11408 ">>>>>>>")); 11409 11410 // FIXME: Handle parsing of macros around conflict markers correctly: 11411 EXPECT_EQ("#define Macro \\\n" 11412 "<<<<<<<\n" 11413 "Something \\\n" 11414 "|||||||\n" 11415 "Else \\\n" 11416 "=======\n" 11417 "Other \\\n" 11418 ">>>>>>>\n" 11419 " End int i;\n", 11420 format("#define Macro \\\n" 11421 "<<<<<<<\n" 11422 " Something \\\n" 11423 "|||||||\n" 11424 " Else \\\n" 11425 "=======\n" 11426 " Other \\\n" 11427 ">>>>>>>\n" 11428 " End\n" 11429 "int i;\n")); 11430 } 11431 11432 TEST_F(FormatTest, DisableRegions) { 11433 EXPECT_EQ("int i;\n" 11434 "// clang-format off\n" 11435 " int j;\n" 11436 "// clang-format on\n" 11437 "int k;", 11438 format(" int i;\n" 11439 " // clang-format off\n" 11440 " int j;\n" 11441 " // clang-format on\n" 11442 " int k;")); 11443 EXPECT_EQ("int i;\n" 11444 "/* clang-format off */\n" 11445 " int j;\n" 11446 "/* clang-format on */\n" 11447 "int k;", 11448 format(" int i;\n" 11449 " /* clang-format off */\n" 11450 " int j;\n" 11451 " /* clang-format on */\n" 11452 " int k;")); 11453 } 11454 11455 TEST_F(FormatTest, DoNotCrashOnInvalidInput) { 11456 format("? ) ="); 11457 verifyNoCrash("#define a\\\n /**/}"); 11458 } 11459 11460 TEST_F(FormatTest, FormatsTableGenCode) { 11461 FormatStyle Style = getLLVMStyle(); 11462 Style.Language = FormatStyle::LK_TableGen; 11463 verifyFormat("include \"a.td\"\ninclude \"b.td\"", Style); 11464 } 11465 11466 // Since this test case uses UNIX-style file path. We disable it for MS 11467 // compiler. 11468 #if !defined(_MSC_VER) && !defined(__MINGW32__) 11469 11470 TEST(FormatStyle, GetStyleOfFile) { 11471 vfs::InMemoryFileSystem FS; 11472 // Test 1: format file in the same directory. 11473 ASSERT_TRUE( 11474 FS.addFile("/a/.clang-format", 0, 11475 llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: LLVM"))); 11476 ASSERT_TRUE( 11477 FS.addFile("/a/test.cpp", 0, llvm::MemoryBuffer::getMemBuffer("int i;"))); 11478 auto Style1 = getStyle("file", "/a/.clang-format", "Google", &FS); 11479 ASSERT_EQ(Style1, getLLVMStyle()); 11480 11481 // Test 2: fallback to default. 11482 ASSERT_TRUE( 11483 FS.addFile("/b/test.cpp", 0, llvm::MemoryBuffer::getMemBuffer("int i;"))); 11484 auto Style2 = getStyle("file", "/b/test.cpp", "Mozilla", &FS); 11485 ASSERT_EQ(Style2, getMozillaStyle()); 11486 11487 // Test 3: format file in parent directory. 11488 ASSERT_TRUE( 11489 FS.addFile("/c/.clang-format", 0, 11490 llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: Google"))); 11491 ASSERT_TRUE(FS.addFile("/c/sub/sub/sub/test.cpp", 0, 11492 llvm::MemoryBuffer::getMemBuffer("int i;"))); 11493 auto Style3 = getStyle("file", "/c/sub/sub/sub/test.cpp", "LLVM", &FS); 11494 ASSERT_EQ(Style3, getGoogleStyle()); 11495 } 11496 11497 #endif // _MSC_VER 11498 11499 class ReplacementTest : public ::testing::Test { 11500 protected: 11501 tooling::Replacement createReplacement(SourceLocation Start, unsigned Length, 11502 llvm::StringRef ReplacementText) { 11503 return tooling::Replacement(Context.Sources, Start, Length, 11504 ReplacementText); 11505 } 11506 11507 RewriterTestContext Context; 11508 }; 11509 11510 TEST_F(ReplacementTest, FormatCodeAfterReplacements) { 11511 // Column limit is 20. 11512 std::string Code = "Type *a =\n" 11513 " new Type();\n" 11514 "g(iiiii, 0, jjjjj,\n" 11515 " 0, kkkkk, 0, mm);\n" 11516 "int bad = format ;"; 11517 std::string Expected = "auto a = new Type();\n" 11518 "g(iiiii, nullptr,\n" 11519 " jjjjj, nullptr,\n" 11520 " kkkkk, nullptr,\n" 11521 " mm);\n" 11522 "int bad = format ;"; 11523 FileID ID = Context.createInMemoryFile("format.cpp", Code); 11524 tooling::Replacements Replaces; 11525 Replaces.insert(tooling::Replacement( 11526 Context.Sources, Context.getLocation(ID, 1, 1), 6, "auto ")); 11527 Replaces.insert(tooling::Replacement( 11528 Context.Sources, Context.getLocation(ID, 3, 10), 1, "nullptr")); 11529 Replaces.insert(tooling::Replacement( 11530 Context.Sources, Context.getLocation(ID, 4, 3), 1, "nullptr")); 11531 Replaces.insert(tooling::Replacement( 11532 Context.Sources, Context.getLocation(ID, 4, 13), 1, "nullptr")); 11533 11534 format::FormatStyle Style = format::getLLVMStyle(); 11535 Style.ColumnLimit = 20; // Set column limit to 20 to increase readibility. 11536 EXPECT_EQ(Expected, applyAllReplacements( 11537 Code, formatReplacements(Code, Replaces, Style))); 11538 } 11539 11540 TEST_F(ReplacementTest, FixOnlyAffectedCodeAfterReplacements) { 11541 std::string Code = "namespace A {\n" 11542 "namespace B {\n" 11543 " int x;\n" 11544 "} // namespace B\n" 11545 "} // namespace A\n" 11546 "\n" 11547 "namespace C {\n" 11548 "namespace D { int i; }\n" 11549 "inline namespace E { namespace { int y; } }\n" 11550 "int x= 0;" 11551 "}"; 11552 std::string Expected = "\n\nnamespace C {\n" 11553 "namespace D { int i; }\n\n" 11554 "int x= 0;" 11555 "}"; 11556 FileID ID = Context.createInMemoryFile("fix.cpp", Code); 11557 tooling::Replacements Replaces; 11558 Replaces.insert(tooling::Replacement( 11559 Context.Sources, Context.getLocation(ID, 3, 3), 6, "")); 11560 Replaces.insert(tooling::Replacement( 11561 Context.Sources, Context.getLocation(ID, 9, 34), 6, "")); 11562 11563 format::FormatStyle Style = format::getLLVMStyle(); 11564 auto FinalReplaces = formatReplacements( 11565 Code, cleanupAroundReplacements(Code, Replaces, Style), Style); 11566 EXPECT_EQ(Expected, applyAllReplacements(Code, FinalReplaces)); 11567 } 11568 11569 TEST_F(ReplacementTest, SortIncludesAfterReplacement) { 11570 std::string Code = "#include \"a.h\"\n" 11571 "#include \"c.h\"\n" 11572 "\n" 11573 "int main() {\n" 11574 " return 0;\n" 11575 "}"; 11576 std::string Expected = "#include \"a.h\"\n" 11577 "#include \"b.h\"\n" 11578 "#include \"c.h\"\n" 11579 "\n" 11580 "int main() {\n" 11581 " return 0;\n" 11582 "}"; 11583 FileID ID = Context.createInMemoryFile("fix.cpp", Code); 11584 tooling::Replacements Replaces; 11585 Replaces.insert(tooling::Replacement( 11586 Context.Sources, Context.getLocation(ID, 1, 1), 0, "#include \"b.h\"\n")); 11587 11588 format::FormatStyle Style = format::getLLVMStyle(); 11589 Style.SortIncludes = true; 11590 auto FinalReplaces = formatReplacements(Code, Replaces, Style); 11591 EXPECT_EQ(Expected, applyAllReplacements(Code, FinalReplaces)); 11592 } 11593 11594 } // end namespace 11595 } // end namespace format 11596 } // end namespace clang 11597