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 "FormatTestUtils.h" 11 #include "clang/Format/Format.h" 12 #include "llvm/Support/Debug.h" 13 #include "gtest/gtest.h" 14 15 #define DEBUG_TYPE "format-test" 16 17 namespace clang { 18 namespace format { 19 namespace { 20 21 FormatStyle getGoogleStyle() { return getGoogleStyle(FormatStyle::LK_Cpp); } 22 23 class FormatTest : public ::testing::Test { 24 protected: 25 enum IncompleteCheck { 26 IC_ExpectComplete, 27 IC_ExpectIncomplete, 28 IC_DoNotCheck 29 }; 30 31 std::string format(llvm::StringRef Code, 32 const FormatStyle &Style = getLLVMStyle(), 33 IncompleteCheck CheckIncomplete = IC_ExpectComplete) { 34 DEBUG(llvm::errs() << "---\n"); 35 DEBUG(llvm::errs() << Code << "\n\n"); 36 std::vector<tooling::Range> Ranges(1, tooling::Range(0, Code.size())); 37 bool IncompleteFormat = false; 38 tooling::Replacements Replaces = 39 reformat(Style, Code, Ranges, "<stdin>", &IncompleteFormat); 40 if (CheckIncomplete != IC_DoNotCheck) { 41 bool ExpectedIncompleteFormat = CheckIncomplete == IC_ExpectIncomplete; 42 EXPECT_EQ(ExpectedIncompleteFormat, IncompleteFormat) << Code << "\n\n"; 43 } 44 ReplacementCount = Replaces.size(); 45 std::string Result = applyAllReplacements(Code, Replaces); 46 EXPECT_NE("", Result); 47 DEBUG(llvm::errs() << "\n" << Result << "\n\n"); 48 return Result; 49 } 50 51 FormatStyle getLLVMStyleWithColumns(unsigned ColumnLimit) { 52 FormatStyle Style = getLLVMStyle(); 53 Style.ColumnLimit = ColumnLimit; 54 return Style; 55 } 56 57 FormatStyle getGoogleStyleWithColumns(unsigned ColumnLimit) { 58 FormatStyle Style = getGoogleStyle(); 59 Style.ColumnLimit = ColumnLimit; 60 return Style; 61 } 62 63 void verifyFormat(llvm::StringRef Code, 64 const FormatStyle &Style = getLLVMStyle()) { 65 EXPECT_EQ(Code.str(), format(test::messUp(Code), Style)); 66 } 67 68 void verifyIncompleteFormat(llvm::StringRef Code, 69 const FormatStyle &Style = getLLVMStyle()) { 70 EXPECT_EQ(Code.str(), 71 format(test::messUp(Code), Style, IC_ExpectIncomplete)); 72 } 73 74 void verifyGoogleFormat(llvm::StringRef Code) { 75 verifyFormat(Code, getGoogleStyle()); 76 } 77 78 void verifyIndependentOfContext(llvm::StringRef text) { 79 verifyFormat(text); 80 verifyFormat(llvm::Twine("void f() { " + text + " }").str()); 81 } 82 83 /// \brief Verify that clang-format does not crash on the given input. 84 void verifyNoCrash(llvm::StringRef Code, 85 const FormatStyle &Style = getLLVMStyle()) { 86 format(Code, Style, IC_DoNotCheck); 87 } 88 89 int ReplacementCount; 90 }; 91 92 TEST_F(FormatTest, MessUp) { 93 EXPECT_EQ("1 2 3", test::messUp("1 2 3")); 94 EXPECT_EQ("1 2 3\n", test::messUp("1\n2\n3\n")); 95 EXPECT_EQ("a\n//b\nc", test::messUp("a\n//b\nc")); 96 EXPECT_EQ("a\n#b\nc", test::messUp("a\n#b\nc")); 97 EXPECT_EQ("a\n#b c d\ne", test::messUp("a\n#b\\\nc\\\nd\ne")); 98 } 99 100 //===----------------------------------------------------------------------===// 101 // Basic function tests. 102 //===----------------------------------------------------------------------===// 103 104 TEST_F(FormatTest, DoesNotChangeCorrectlyFormattedCode) { 105 EXPECT_EQ(";", format(";")); 106 } 107 108 TEST_F(FormatTest, FormatsGlobalStatementsAt0) { 109 EXPECT_EQ("int i;", format(" int i;")); 110 EXPECT_EQ("\nint i;", format(" \n\t \v \f int i;")); 111 EXPECT_EQ("int i;\nint j;", format(" int i; int j;")); 112 EXPECT_EQ("int i;\nint j;", format(" int i;\n int j;")); 113 } 114 115 TEST_F(FormatTest, FormatsUnwrappedLinesAtFirstFormat) { 116 EXPECT_EQ("int i;", format("int\ni;")); 117 } 118 119 TEST_F(FormatTest, FormatsNestedBlockStatements) { 120 EXPECT_EQ("{\n {\n {}\n }\n}", format("{{{}}}")); 121 } 122 123 TEST_F(FormatTest, FormatsNestedCall) { 124 verifyFormat("Method(f1, f2(f3));"); 125 verifyFormat("Method(f1(f2, f3()));"); 126 verifyFormat("Method(f1(f2, (f3())));"); 127 } 128 129 TEST_F(FormatTest, NestedNameSpecifiers) { 130 verifyFormat("vector<::Type> v;"); 131 verifyFormat("::ns::SomeFunction(::ns::SomeOtherFunction())"); 132 verifyFormat("static constexpr bool Bar = decltype(bar())::value;"); 133 verifyFormat("bool a = 2 < ::SomeFunction();"); 134 } 135 136 TEST_F(FormatTest, OnlyGeneratesNecessaryReplacements) { 137 EXPECT_EQ("if (a) {\n" 138 " f();\n" 139 "}", 140 format("if(a){f();}")); 141 EXPECT_EQ(4, ReplacementCount); 142 EXPECT_EQ("if (a) {\n" 143 " f();\n" 144 "}", 145 format("if (a) {\n" 146 " f();\n" 147 "}")); 148 EXPECT_EQ(0, ReplacementCount); 149 EXPECT_EQ("/*\r\n" 150 "\r\n" 151 "*/\r\n", 152 format("/*\r\n" 153 "\r\n" 154 "*/\r\n")); 155 EXPECT_EQ(0, ReplacementCount); 156 } 157 158 TEST_F(FormatTest, RemovesEmptyLines) { 159 EXPECT_EQ("class C {\n" 160 " int i;\n" 161 "};", 162 format("class C {\n" 163 " int i;\n" 164 "\n" 165 "};")); 166 167 // Don't remove empty lines at the start of namespaces or extern "C" blocks. 168 EXPECT_EQ("namespace N {\n" 169 "\n" 170 "int i;\n" 171 "}", 172 format("namespace N {\n" 173 "\n" 174 "int i;\n" 175 "}", 176 getGoogleStyle())); 177 EXPECT_EQ("extern /**/ \"C\" /**/ {\n" 178 "\n" 179 "int i;\n" 180 "}", 181 format("extern /**/ \"C\" /**/ {\n" 182 "\n" 183 "int i;\n" 184 "}", 185 getGoogleStyle())); 186 187 // ...but do keep inlining and removing empty lines for non-block extern "C" 188 // functions. 189 verifyFormat("extern \"C\" int f() { return 42; }", getGoogleStyle()); 190 EXPECT_EQ("extern \"C\" int f() {\n" 191 " int i = 42;\n" 192 " return i;\n" 193 "}", 194 format("extern \"C\" int f() {\n" 195 "\n" 196 " int i = 42;\n" 197 " return i;\n" 198 "}", 199 getGoogleStyle())); 200 201 // Remove empty lines at the beginning and end of blocks. 202 EXPECT_EQ("void f() {\n" 203 "\n" 204 " if (a) {\n" 205 "\n" 206 " f();\n" 207 " }\n" 208 "}", 209 format("void f() {\n" 210 "\n" 211 " if (a) {\n" 212 "\n" 213 " f();\n" 214 "\n" 215 " }\n" 216 "\n" 217 "}", 218 getLLVMStyle())); 219 EXPECT_EQ("void f() {\n" 220 " if (a) {\n" 221 " f();\n" 222 " }\n" 223 "}", 224 format("void f() {\n" 225 "\n" 226 " if (a) {\n" 227 "\n" 228 " f();\n" 229 "\n" 230 " }\n" 231 "\n" 232 "}", 233 getGoogleStyle())); 234 235 // Don't remove empty lines in more complex control statements. 236 EXPECT_EQ("void f() {\n" 237 " if (a) {\n" 238 " f();\n" 239 "\n" 240 " } else if (b) {\n" 241 " f();\n" 242 " }\n" 243 "}", 244 format("void f() {\n" 245 " if (a) {\n" 246 " f();\n" 247 "\n" 248 " } else if (b) {\n" 249 " f();\n" 250 "\n" 251 " }\n" 252 "\n" 253 "}")); 254 255 // FIXME: This is slightly inconsistent. 256 EXPECT_EQ("namespace {\n" 257 "int i;\n" 258 "}", 259 format("namespace {\n" 260 "int i;\n" 261 "\n" 262 "}")); 263 EXPECT_EQ("namespace {\n" 264 "int i;\n" 265 "\n" 266 "} // namespace", 267 format("namespace {\n" 268 "int i;\n" 269 "\n" 270 "} // namespace")); 271 } 272 273 TEST_F(FormatTest, RecognizesBinaryOperatorKeywords) { 274 verifyFormat("x = (a) and (b);"); 275 verifyFormat("x = (a) or (b);"); 276 verifyFormat("x = (a) bitand (b);"); 277 verifyFormat("x = (a) bitor (b);"); 278 verifyFormat("x = (a) not_eq (b);"); 279 verifyFormat("x = (a) and_eq (b);"); 280 verifyFormat("x = (a) or_eq (b);"); 281 verifyFormat("x = (a) xor (b);"); 282 } 283 284 //===----------------------------------------------------------------------===// 285 // Tests for control statements. 286 //===----------------------------------------------------------------------===// 287 288 TEST_F(FormatTest, FormatIfWithoutCompoundStatement) { 289 verifyFormat("if (true)\n f();\ng();"); 290 verifyFormat("if (a)\n if (b)\n if (c)\n g();\nh();"); 291 verifyFormat("if (a)\n if (b) {\n f();\n }\ng();"); 292 293 FormatStyle AllowsMergedIf = getLLVMStyle(); 294 AllowsMergedIf.AllowShortIfStatementsOnASingleLine = true; 295 verifyFormat("if (a)\n" 296 " // comment\n" 297 " f();", 298 AllowsMergedIf); 299 verifyFormat("if (a)\n" 300 " ;", 301 AllowsMergedIf); 302 verifyFormat("if (a)\n" 303 " if (b) return;", 304 AllowsMergedIf); 305 306 verifyFormat("if (a) // Can't merge this\n" 307 " f();\n", 308 AllowsMergedIf); 309 verifyFormat("if (a) /* still don't merge */\n" 310 " f();", 311 AllowsMergedIf); 312 verifyFormat("if (a) { // Never merge this\n" 313 " f();\n" 314 "}", 315 AllowsMergedIf); 316 verifyFormat("if (a) {/* Never merge this */\n" 317 " f();\n" 318 "}", 319 AllowsMergedIf); 320 321 AllowsMergedIf.ColumnLimit = 14; 322 verifyFormat("if (a) return;", AllowsMergedIf); 323 verifyFormat("if (aaaaaaaaa)\n" 324 " return;", 325 AllowsMergedIf); 326 327 AllowsMergedIf.ColumnLimit = 13; 328 verifyFormat("if (a)\n return;", AllowsMergedIf); 329 } 330 331 TEST_F(FormatTest, FormatLoopsWithoutCompoundStatement) { 332 FormatStyle AllowsMergedLoops = getLLVMStyle(); 333 AllowsMergedLoops.AllowShortLoopsOnASingleLine = true; 334 verifyFormat("while (true) continue;", AllowsMergedLoops); 335 verifyFormat("for (;;) continue;", AllowsMergedLoops); 336 verifyFormat("for (int &v : vec) v *= 2;", AllowsMergedLoops); 337 verifyFormat("while (true)\n" 338 " ;", 339 AllowsMergedLoops); 340 verifyFormat("for (;;)\n" 341 " ;", 342 AllowsMergedLoops); 343 verifyFormat("for (;;)\n" 344 " for (;;) continue;", 345 AllowsMergedLoops); 346 verifyFormat("for (;;) // Can't merge this\n" 347 " continue;", 348 AllowsMergedLoops); 349 verifyFormat("for (;;) /* still don't merge */\n" 350 " continue;", 351 AllowsMergedLoops); 352 } 353 354 TEST_F(FormatTest, FormatShortBracedStatements) { 355 FormatStyle AllowSimpleBracedStatements = getLLVMStyle(); 356 AllowSimpleBracedStatements.AllowShortBlocksOnASingleLine = true; 357 358 AllowSimpleBracedStatements.AllowShortIfStatementsOnASingleLine = true; 359 AllowSimpleBracedStatements.AllowShortLoopsOnASingleLine = true; 360 361 verifyFormat("if (true) {}", AllowSimpleBracedStatements); 362 verifyFormat("while (true) {}", AllowSimpleBracedStatements); 363 verifyFormat("for (;;) {}", AllowSimpleBracedStatements); 364 verifyFormat("if (true) { f(); }", AllowSimpleBracedStatements); 365 verifyFormat("while (true) { f(); }", AllowSimpleBracedStatements); 366 verifyFormat("for (;;) { f(); }", AllowSimpleBracedStatements); 367 verifyFormat("if (true) { //\n" 368 " f();\n" 369 "}", 370 AllowSimpleBracedStatements); 371 verifyFormat("if (true) {\n" 372 " f();\n" 373 " f();\n" 374 "}", 375 AllowSimpleBracedStatements); 376 verifyFormat("if (true) {\n" 377 " f();\n" 378 "} else {\n" 379 " f();\n" 380 "}", 381 AllowSimpleBracedStatements); 382 383 verifyFormat("template <int> struct A2 {\n" 384 " struct B {};\n" 385 "};", 386 AllowSimpleBracedStatements); 387 388 AllowSimpleBracedStatements.AllowShortIfStatementsOnASingleLine = false; 389 verifyFormat("if (true) {\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 AllowSimpleBracedStatements.AllowShortLoopsOnASingleLine = false; 401 verifyFormat("while (true) {\n" 402 " f();\n" 403 "}", 404 AllowSimpleBracedStatements); 405 verifyFormat("for (;;) {\n" 406 " f();\n" 407 "}", 408 AllowSimpleBracedStatements); 409 } 410 411 TEST_F(FormatTest, ParseIfElse) { 412 verifyFormat("if (true)\n" 413 " if (true)\n" 414 " if (true)\n" 415 " f();\n" 416 " else\n" 417 " g();\n" 418 " else\n" 419 " h();\n" 420 "else\n" 421 " i();"); 422 verifyFormat("if (true)\n" 423 " if (true)\n" 424 " if (true) {\n" 425 " if (true)\n" 426 " f();\n" 427 " } else {\n" 428 " g();\n" 429 " }\n" 430 " else\n" 431 " h();\n" 432 "else {\n" 433 " i();\n" 434 "}"); 435 verifyFormat("void f() {\n" 436 " if (a) {\n" 437 " } else {\n" 438 " }\n" 439 "}"); 440 } 441 442 TEST_F(FormatTest, ElseIf) { 443 verifyFormat("if (a) {\n} else if (b) {\n}"); 444 verifyFormat("if (a)\n" 445 " f();\n" 446 "else if (b)\n" 447 " g();\n" 448 "else\n" 449 " h();"); 450 verifyFormat("if (a) {\n" 451 " f();\n" 452 "}\n" 453 "// or else ..\n" 454 "else {\n" 455 " g()\n" 456 "}"); 457 458 verifyFormat("if (a) {\n" 459 "} else if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 460 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa)) {\n" 461 "}"); 462 verifyFormat("if (a) {\n" 463 "} else if (\n" 464 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n" 465 "}", 466 getLLVMStyleWithColumns(62)); 467 } 468 469 TEST_F(FormatTest, FormatsForLoop) { 470 verifyFormat( 471 "for (int VeryVeryLongLoopVariable = 0; VeryVeryLongLoopVariable < 10;\n" 472 " ++VeryVeryLongLoopVariable)\n" 473 " ;"); 474 verifyFormat("for (;;)\n" 475 " f();"); 476 verifyFormat("for (;;) {\n}"); 477 verifyFormat("for (;;) {\n" 478 " f();\n" 479 "}"); 480 verifyFormat("for (int i = 0; (i < 10); ++i) {\n}"); 481 482 verifyFormat( 483 "for (std::vector<UnwrappedLine>::iterator I = UnwrappedLines.begin(),\n" 484 " E = UnwrappedLines.end();\n" 485 " I != E; ++I) {\n}"); 486 487 verifyFormat( 488 "for (MachineFun::iterator IIII = PrevIt, EEEE = F.end(); IIII != EEEE;\n" 489 " ++IIIII) {\n}"); 490 verifyFormat("for (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaa =\n" 491 " aaaaaaaaaaaaaaaa.aaaaaaaaaaaaaaa;\n" 492 " aaaaaaaaaaa != aaaaaaaaaaaaaaaaaaa; ++aaaaaaaaaaa) {\n}"); 493 verifyFormat("for (llvm::ArrayRef<NamedDecl *>::iterator\n" 494 " I = FD->getDeclsInPrototypeScope().begin(),\n" 495 " E = FD->getDeclsInPrototypeScope().end();\n" 496 " I != E; ++I) {\n}"); 497 verifyFormat("for (SmallVectorImpl<TemplateIdAnnotationn *>::iterator\n" 498 " I = Container.begin(),\n" 499 " E = Container.end();\n" 500 " I != E; ++I) {\n}", 501 getLLVMStyleWithColumns(76)); 502 503 verifyFormat( 504 "for (aaaaaaaaaaaaaaaaa aaaaaaaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;\n" 505 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa !=\n" 506 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 507 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);\n" 508 " ++aaaaaaaaaaa) {\n}"); 509 verifyFormat("for (int i = 0; i < aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 510 " bbbbbbbbbbbbbbbbbbbb < ccccccccccccccc;\n" 511 " ++i) {\n}"); 512 verifyFormat("for (int aaaaaaaaaaa = 1; aaaaaaaaaaa <= bbbbbbbbbbbbbbb;\n" 513 " aaaaaaaaaaa++, bbbbbbbbbbbbbbbbb++) {\n" 514 "}"); 515 verifyFormat("for (some_namespace::SomeIterator iter( // force break\n" 516 " aaaaaaaaaa);\n" 517 " iter; ++iter) {\n" 518 "}"); 519 verifyFormat("for (auto aaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 520 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);\n" 521 " aaaaaaaaaaaaaaaaaaaaaaaaaaa != bbbbbbbbbbbbbbbbbbbbbbb;\n" 522 " ++aaaaaaaaaaaaaaaaaaaaaaaaaaa) {"); 523 524 FormatStyle NoBinPacking = getLLVMStyle(); 525 NoBinPacking.BinPackParameters = false; 526 verifyFormat("for (int aaaaaaaaaaa = 1;\n" 527 " aaaaaaaaaaa <= aaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaa,\n" 528 " aaaaaaaaaaaaaaaa,\n" 529 " aaaaaaaaaaaaaaaa,\n" 530 " aaaaaaaaaaaaaaaa);\n" 531 " aaaaaaaaaaa++, bbbbbbbbbbbbbbbbb++) {\n" 532 "}", 533 NoBinPacking); 534 verifyFormat( 535 "for (std::vector<UnwrappedLine>::iterator I = UnwrappedLines.begin(),\n" 536 " E = UnwrappedLines.end();\n" 537 " I != E;\n" 538 " ++I) {\n}", 539 NoBinPacking); 540 } 541 542 TEST_F(FormatTest, RangeBasedForLoops) { 543 verifyFormat("for (auto aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 544 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}"); 545 verifyFormat("for (auto aaaaaaaaaaaaaaaaaaaaa :\n" 546 " aaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaa, aaaaaaaaaaaaa)) {\n}"); 547 verifyFormat("for (const aaaaaaaaaaaaaaaaaaaaa &aaaaaaaaa :\n" 548 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}"); 549 verifyFormat("for (aaaaaaaaa aaaaaaaaaaaaaaaaaaaaa :\n" 550 " aaaaaaaaaaaa.aaaaaaaaaaaa().aaaaaaaaa().a()) {\n}"); 551 } 552 553 TEST_F(FormatTest, ForEachLoops) { 554 verifyFormat("void f() {\n" 555 " foreach (Item *item, itemlist) {}\n" 556 " Q_FOREACH (Item *item, itemlist) {}\n" 557 " BOOST_FOREACH (Item *item, itemlist) {}\n" 558 " UNKNOWN_FORACH(Item * item, itemlist) {}\n" 559 "}"); 560 561 // As function-like macros. 562 verifyFormat("#define foreach(x, y)\n" 563 "#define Q_FOREACH(x, y)\n" 564 "#define BOOST_FOREACH(x, y)\n" 565 "#define UNKNOWN_FOREACH(x, y)\n"); 566 567 // Not as function-like macros. 568 verifyFormat("#define foreach (x, y)\n" 569 "#define Q_FOREACH (x, y)\n" 570 "#define BOOST_FOREACH (x, y)\n" 571 "#define UNKNOWN_FOREACH (x, y)\n"); 572 } 573 574 TEST_F(FormatTest, FormatsWhileLoop) { 575 verifyFormat("while (true) {\n}"); 576 verifyFormat("while (true)\n" 577 " f();"); 578 verifyFormat("while () {\n}"); 579 verifyFormat("while () {\n" 580 " f();\n" 581 "}"); 582 } 583 584 TEST_F(FormatTest, FormatsDoWhile) { 585 verifyFormat("do {\n" 586 " do_something();\n" 587 "} while (something());"); 588 verifyFormat("do\n" 589 " do_something();\n" 590 "while (something());"); 591 } 592 593 TEST_F(FormatTest, FormatsSwitchStatement) { 594 verifyFormat("switch (x) {\n" 595 "case 1:\n" 596 " f();\n" 597 " break;\n" 598 "case kFoo:\n" 599 "case ns::kBar:\n" 600 "case kBaz:\n" 601 " break;\n" 602 "default:\n" 603 " g();\n" 604 " break;\n" 605 "}"); 606 verifyFormat("switch (x) {\n" 607 "case 1: {\n" 608 " f();\n" 609 " break;\n" 610 "}\n" 611 "case 2: {\n" 612 " break;\n" 613 "}\n" 614 "}"); 615 verifyFormat("switch (x) {\n" 616 "case 1: {\n" 617 " f();\n" 618 " {\n" 619 " g();\n" 620 " h();\n" 621 " }\n" 622 " break;\n" 623 "}\n" 624 "}"); 625 verifyFormat("switch (x) {\n" 626 "case 1: {\n" 627 " f();\n" 628 " if (foo) {\n" 629 " g();\n" 630 " h();\n" 631 " }\n" 632 " break;\n" 633 "}\n" 634 "}"); 635 verifyFormat("switch (x) {\n" 636 "case 1: {\n" 637 " f();\n" 638 " g();\n" 639 "} break;\n" 640 "}"); 641 verifyFormat("switch (test)\n" 642 " ;"); 643 verifyFormat("switch (x) {\n" 644 "default: {\n" 645 " // Do nothing.\n" 646 "}\n" 647 "}"); 648 verifyFormat("switch (x) {\n" 649 "// comment\n" 650 "// if 1, do f()\n" 651 "case 1:\n" 652 " f();\n" 653 "}"); 654 verifyFormat("switch (x) {\n" 655 "case 1:\n" 656 " // Do amazing stuff\n" 657 " {\n" 658 " f();\n" 659 " g();\n" 660 " }\n" 661 " break;\n" 662 "}"); 663 verifyFormat("#define A \\\n" 664 " switch (x) { \\\n" 665 " case a: \\\n" 666 " foo = b; \\\n" 667 " }", 668 getLLVMStyleWithColumns(20)); 669 verifyFormat("#define OPERATION_CASE(name) \\\n" 670 " case OP_name: \\\n" 671 " return operations::Operation##name\n", 672 getLLVMStyleWithColumns(40)); 673 verifyFormat("switch (x) {\n" 674 "case 1:;\n" 675 "default:;\n" 676 " int i;\n" 677 "}"); 678 679 verifyGoogleFormat("switch (x) {\n" 680 " case 1:\n" 681 " f();\n" 682 " break;\n" 683 " case kFoo:\n" 684 " case ns::kBar:\n" 685 " case kBaz:\n" 686 " break;\n" 687 " default:\n" 688 " g();\n" 689 " break;\n" 690 "}"); 691 verifyGoogleFormat("switch (x) {\n" 692 " case 1: {\n" 693 " f();\n" 694 " break;\n" 695 " }\n" 696 "}"); 697 verifyGoogleFormat("switch (test)\n" 698 " ;"); 699 700 verifyGoogleFormat("#define OPERATION_CASE(name) \\\n" 701 " case OP_name: \\\n" 702 " return operations::Operation##name\n"); 703 verifyGoogleFormat("Operation codeToOperation(OperationCode OpCode) {\n" 704 " // Get the correction operation class.\n" 705 " switch (OpCode) {\n" 706 " CASE(Add);\n" 707 " CASE(Subtract);\n" 708 " default:\n" 709 " return operations::Unknown;\n" 710 " }\n" 711 "#undef OPERATION_CASE\n" 712 "}"); 713 verifyFormat("DEBUG({\n" 714 " switch (x) {\n" 715 " case A:\n" 716 " f();\n" 717 " break;\n" 718 " // On B:\n" 719 " case B:\n" 720 " g();\n" 721 " break;\n" 722 " }\n" 723 "});"); 724 verifyFormat("switch (a) {\n" 725 "case (b):\n" 726 " return;\n" 727 "}"); 728 729 verifyFormat("switch (a) {\n" 730 "case some_namespace::\n" 731 " some_constant:\n" 732 " return;\n" 733 "}", 734 getLLVMStyleWithColumns(34)); 735 } 736 737 TEST_F(FormatTest, CaseRanges) { 738 verifyFormat("switch (x) {\n" 739 "case 'A' ... 'Z':\n" 740 "case 1 ... 5:\n" 741 " break;\n" 742 "}"); 743 } 744 745 TEST_F(FormatTest, ShortCaseLabels) { 746 FormatStyle Style = getLLVMStyle(); 747 Style.AllowShortCaseLabelsOnASingleLine = true; 748 verifyFormat("switch (a) {\n" 749 "case 1: x = 1; break;\n" 750 "case 2: return;\n" 751 "case 3:\n" 752 "case 4:\n" 753 "case 5: return;\n" 754 "case 6: // comment\n" 755 " return;\n" 756 "case 7:\n" 757 " // comment\n" 758 " return;\n" 759 "case 8:\n" 760 " x = 8; // comment\n" 761 " break;\n" 762 "default: y = 1; break;\n" 763 "}", 764 Style); 765 verifyFormat("switch (a) {\n" 766 "#if FOO\n" 767 "case 0: return 0;\n" 768 "#endif\n" 769 "}", 770 Style); 771 verifyFormat("switch (a) {\n" 772 "case 1: {\n" 773 "}\n" 774 "case 2: {\n" 775 " return;\n" 776 "}\n" 777 "case 3: {\n" 778 " x = 1;\n" 779 " return;\n" 780 "}\n" 781 "case 4:\n" 782 " if (x)\n" 783 " return;\n" 784 "}", 785 Style); 786 Style.ColumnLimit = 21; 787 verifyFormat("switch (a) {\n" 788 "case 1: x = 1; break;\n" 789 "case 2: return;\n" 790 "case 3:\n" 791 "case 4:\n" 792 "case 5: return;\n" 793 "default:\n" 794 " y = 1;\n" 795 " break;\n" 796 "}", 797 Style); 798 } 799 800 TEST_F(FormatTest, FormatsLabels) { 801 verifyFormat("void f() {\n" 802 " some_code();\n" 803 "test_label:\n" 804 " some_other_code();\n" 805 " {\n" 806 " some_more_code();\n" 807 " another_label:\n" 808 " some_more_code();\n" 809 " }\n" 810 "}"); 811 verifyFormat("{\n" 812 " some_code();\n" 813 "test_label:\n" 814 " some_other_code();\n" 815 "}"); 816 verifyFormat("{\n" 817 " some_code();\n" 818 "test_label:;\n" 819 " int i = 0;\n" 820 "}"); 821 } 822 823 //===----------------------------------------------------------------------===// 824 // Tests for comments. 825 //===----------------------------------------------------------------------===// 826 827 TEST_F(FormatTest, UnderstandsSingleLineComments) { 828 verifyFormat("//* */"); 829 verifyFormat("// line 1\n" 830 "// line 2\n" 831 "void f() {}\n"); 832 833 verifyFormat("void f() {\n" 834 " // Doesn't do anything\n" 835 "}"); 836 verifyFormat("SomeObject\n" 837 " // Calling someFunction on SomeObject\n" 838 " .someFunction();"); 839 verifyFormat("auto result = SomeObject\n" 840 " // Calling someFunction on SomeObject\n" 841 " .someFunction();"); 842 verifyFormat("void f(int i, // some comment (probably for i)\n" 843 " int j, // some comment (probably for j)\n" 844 " int k); // some comment (probably for k)"); 845 verifyFormat("void f(int i,\n" 846 " // some comment (probably for j)\n" 847 " int j,\n" 848 " // some comment (probably for k)\n" 849 " int k);"); 850 851 verifyFormat("int i // This is a fancy variable\n" 852 " = 5; // with nicely aligned comment."); 853 854 verifyFormat("// Leading comment.\n" 855 "int a; // Trailing comment."); 856 verifyFormat("int a; // Trailing comment\n" 857 " // on 2\n" 858 " // or 3 lines.\n" 859 "int b;"); 860 verifyFormat("int a; // Trailing comment\n" 861 "\n" 862 "// Leading comment.\n" 863 "int b;"); 864 verifyFormat("int a; // Comment.\n" 865 " // More details.\n" 866 "int bbbb; // Another comment."); 867 verifyFormat( 868 "int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa; // comment\n" 869 "int bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb; // comment\n" 870 "int cccccccccccccccccccccccccccccc; // comment\n" 871 "int ddd; // looooooooooooooooooooooooong comment\n" 872 "int aaaaaaaaaaaaaaaaaaaaaaa; // comment\n" 873 "int bbbbbbbbbbbbbbbbbbbbb; // comment\n" 874 "int ccccccccccccccccccc; // comment"); 875 876 verifyFormat("#include \"a\" // comment\n" 877 "#include \"a/b/c\" // comment"); 878 verifyFormat("#include <a> // comment\n" 879 "#include <a/b/c> // comment"); 880 EXPECT_EQ("#include \"a\" // comment\n" 881 "#include \"a/b/c\" // comment", 882 format("#include \\\n" 883 " \"a\" // comment\n" 884 "#include \"a/b/c\" // comment")); 885 886 verifyFormat("enum E {\n" 887 " // comment\n" 888 " VAL_A, // comment\n" 889 " VAL_B\n" 890 "};"); 891 892 verifyFormat( 893 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 894 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb; // Trailing comment"); 895 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 896 " // Comment inside a statement.\n" 897 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;"); 898 verifyFormat("SomeFunction(a,\n" 899 " // comment\n" 900 " b + x);"); 901 verifyFormat("SomeFunction(a, a,\n" 902 " // comment\n" 903 " b + x);"); 904 verifyFormat( 905 "bool aaaaaaaaaaaaa = // comment\n" 906 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 907 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 908 909 verifyFormat("int aaaa; // aaaaa\n" 910 "int aa; // aaaaaaa", 911 getLLVMStyleWithColumns(20)); 912 913 EXPECT_EQ("void f() { // This does something ..\n" 914 "}\n" 915 "int a; // This is unrelated", 916 format("void f() { // This does something ..\n" 917 " }\n" 918 "int a; // This is unrelated")); 919 EXPECT_EQ("class C {\n" 920 " void f() { // This does something ..\n" 921 " } // awesome..\n" 922 "\n" 923 " int a; // This is unrelated\n" 924 "};", 925 format("class C{void f() { // This does something ..\n" 926 " } // awesome..\n" 927 " \n" 928 "int a; // This is unrelated\n" 929 "};")); 930 931 EXPECT_EQ("int i; // single line trailing comment", 932 format("int i;\\\n// single line trailing comment")); 933 934 verifyGoogleFormat("int a; // Trailing comment."); 935 936 verifyFormat("someFunction(anotherFunction( // Force break.\n" 937 " parameter));"); 938 939 verifyGoogleFormat("#endif // HEADER_GUARD"); 940 941 verifyFormat("const char *test[] = {\n" 942 " // A\n" 943 " \"aaaa\",\n" 944 " // B\n" 945 " \"aaaaa\"};"); 946 verifyGoogleFormat( 947 "aaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 948 " aaaaaaaaaaaaaaaaaaaaaa); // 81_cols_with_this_comment"); 949 EXPECT_EQ("D(a, {\n" 950 " // test\n" 951 " int a;\n" 952 "});", 953 format("D(a, {\n" 954 "// test\n" 955 "int a;\n" 956 "});")); 957 958 EXPECT_EQ("lineWith(); // comment\n" 959 "// at start\n" 960 "otherLine();", 961 format("lineWith(); // comment\n" 962 "// at start\n" 963 "otherLine();")); 964 EXPECT_EQ("lineWith(); // comment\n" 965 " // at start\n" 966 "otherLine();", 967 format("lineWith(); // comment\n" 968 " // at start\n" 969 "otherLine();")); 970 971 EXPECT_EQ("lineWith(); // comment\n" 972 "// at start\n" 973 "otherLine(); // comment", 974 format("lineWith(); // comment\n" 975 "// at start\n" 976 "otherLine(); // comment")); 977 EXPECT_EQ("lineWith();\n" 978 "// at start\n" 979 "otherLine(); // comment", 980 format("lineWith();\n" 981 " // at start\n" 982 "otherLine(); // comment")); 983 EXPECT_EQ("// first\n" 984 "// at start\n" 985 "otherLine(); // comment", 986 format("// first\n" 987 " // at start\n" 988 "otherLine(); // comment")); 989 EXPECT_EQ("f();\n" 990 "// first\n" 991 "// at start\n" 992 "otherLine(); // comment", 993 format("f();\n" 994 "// first\n" 995 " // at start\n" 996 "otherLine(); // comment")); 997 verifyFormat("f(); // comment\n" 998 "// first\n" 999 "// at start\n" 1000 "otherLine();"); 1001 EXPECT_EQ("f(); // comment\n" 1002 "// first\n" 1003 "// at start\n" 1004 "otherLine();", 1005 format("f(); // comment\n" 1006 "// first\n" 1007 " // at start\n" 1008 "otherLine();")); 1009 EXPECT_EQ("f(); // comment\n" 1010 " // first\n" 1011 "// at start\n" 1012 "otherLine();", 1013 format("f(); // comment\n" 1014 " // first\n" 1015 "// at start\n" 1016 "otherLine();")); 1017 EXPECT_EQ("void f() {\n" 1018 " lineWith(); // comment\n" 1019 " // at start\n" 1020 "}", 1021 format("void f() {\n" 1022 " lineWith(); // comment\n" 1023 " // at start\n" 1024 "}")); 1025 1026 verifyFormat("#define A \\\n" 1027 " int i; /* iiiiiiiiiiiiiiiiiiiii */ \\\n" 1028 " int jjjjjjjjjjjjjjjjjjjjjjjj; /* */", 1029 getLLVMStyleWithColumns(60)); 1030 verifyFormat( 1031 "#define A \\\n" 1032 " int i; /* iiiiiiiiiiiiiiiiiiiii */ \\\n" 1033 " int jjjjjjjjjjjjjjjjjjjjjjjj; /* */", 1034 getLLVMStyleWithColumns(61)); 1035 1036 verifyFormat("if ( // This is some comment\n" 1037 " x + 3) {\n" 1038 "}"); 1039 EXPECT_EQ("if ( // This is some comment\n" 1040 " // spanning two lines\n" 1041 " x + 3) {\n" 1042 "}", 1043 format("if( // This is some comment\n" 1044 " // spanning two lines\n" 1045 " x + 3) {\n" 1046 "}")); 1047 1048 verifyNoCrash("/\\\n/"); 1049 verifyNoCrash("/\\\n* */"); 1050 // The 0-character somehow makes the lexer return a proper comment. 1051 verifyNoCrash(StringRef("/*\\\0\n/", 6)); 1052 } 1053 1054 TEST_F(FormatTest, KeepsParameterWithTrailingCommentsOnTheirOwnLine) { 1055 EXPECT_EQ("SomeFunction(a,\n" 1056 " b, // comment\n" 1057 " c);", 1058 format("SomeFunction(a,\n" 1059 " b, // comment\n" 1060 " c);")); 1061 EXPECT_EQ("SomeFunction(a, b,\n" 1062 " // comment\n" 1063 " c);", 1064 format("SomeFunction(a,\n" 1065 " b,\n" 1066 " // comment\n" 1067 " c);")); 1068 EXPECT_EQ("SomeFunction(a, b, // comment (unclear relation)\n" 1069 " c);", 1070 format("SomeFunction(a, b, // comment (unclear relation)\n" 1071 " c);")); 1072 EXPECT_EQ("SomeFunction(a, // comment\n" 1073 " b,\n" 1074 " c); // comment", 1075 format("SomeFunction(a, // comment\n" 1076 " b,\n" 1077 " c); // comment")); 1078 } 1079 1080 TEST_F(FormatTest, RemovesTrailingWhitespaceOfComments) { 1081 EXPECT_EQ("// comment", format("// comment ")); 1082 EXPECT_EQ("int aaaaaaa, bbbbbbb; // comment", 1083 format("int aaaaaaa, bbbbbbb; // comment ", 1084 getLLVMStyleWithColumns(33))); 1085 EXPECT_EQ("// comment\\\n", format("// comment\\\n \t \v \f ")); 1086 EXPECT_EQ("// comment \\\n", format("// comment \\\n \t \v \f ")); 1087 } 1088 1089 TEST_F(FormatTest, UnderstandsBlockComments) { 1090 verifyFormat("f(/*noSpaceAfterParameterNamingComment=*/true);"); 1091 verifyFormat("void f() { g(/*aaa=*/x, /*bbb=*/!y); }"); 1092 EXPECT_EQ("f(aaaaaaaaaaaaaaaaaaaaaaaaa, /* Trailing comment for aa... */\n" 1093 " bbbbbbbbbbbbbbbbbbbbbbbbb);", 1094 format("f(aaaaaaaaaaaaaaaaaaaaaaaaa , \\\n" 1095 "/* Trailing comment for aa... */\n" 1096 " bbbbbbbbbbbbbbbbbbbbbbbbb);")); 1097 EXPECT_EQ( 1098 "f(aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 1099 " /* Leading comment for bb... */ bbbbbbbbbbbbbbbbbbbbbbbbb);", 1100 format("f(aaaaaaaaaaaaaaaaaaaaaaaaa , \n" 1101 "/* Leading comment for bb... */ bbbbbbbbbbbbbbbbbbbbbbbbb);")); 1102 EXPECT_EQ( 1103 "void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 1104 " aaaaaaaaaaaaaaaaaa,\n" 1105 " aaaaaaaaaaaaaaaaaa) { /*aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa*/\n" 1106 "}", 1107 format("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 1108 " aaaaaaaaaaaaaaaaaa ,\n" 1109 " aaaaaaaaaaaaaaaaaa) { /*aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa*/\n" 1110 "}")); 1111 1112 FormatStyle NoBinPacking = getLLVMStyle(); 1113 NoBinPacking.BinPackParameters = false; 1114 verifyFormat("aaaaaaaa(/* parameter 1 */ aaaaaa,\n" 1115 " /* parameter 2 */ aaaaaa,\n" 1116 " /* parameter 3 */ aaaaaa,\n" 1117 " /* parameter 4 */ aaaaaa);", 1118 NoBinPacking); 1119 1120 // Aligning block comments in macros. 1121 verifyGoogleFormat("#define A \\\n" 1122 " int i; /*a*/ \\\n" 1123 " int jjj; /*b*/"); 1124 } 1125 1126 TEST_F(FormatTest, AlignsBlockComments) { 1127 EXPECT_EQ("/*\n" 1128 " * Really multi-line\n" 1129 " * comment.\n" 1130 " */\n" 1131 "void f() {}", 1132 format(" /*\n" 1133 " * Really multi-line\n" 1134 " * comment.\n" 1135 " */\n" 1136 " void f() {}")); 1137 EXPECT_EQ("class C {\n" 1138 " /*\n" 1139 " * Another multi-line\n" 1140 " * comment.\n" 1141 " */\n" 1142 " void f() {}\n" 1143 "};", 1144 format("class C {\n" 1145 "/*\n" 1146 " * Another multi-line\n" 1147 " * comment.\n" 1148 " */\n" 1149 "void f() {}\n" 1150 "};")); 1151 EXPECT_EQ("/*\n" 1152 " 1. This is a comment with non-trivial formatting.\n" 1153 " 1.1. We have to indent/outdent all lines equally\n" 1154 " 1.1.1. to keep the formatting.\n" 1155 " */", 1156 format(" /*\n" 1157 " 1. This is a comment with non-trivial formatting.\n" 1158 " 1.1. We have to indent/outdent all lines equally\n" 1159 " 1.1.1. to keep the formatting.\n" 1160 " */")); 1161 EXPECT_EQ("/*\n" 1162 "Don't try to outdent if there's not enough indentation.\n" 1163 "*/", 1164 format(" /*\n" 1165 " Don't try to outdent if there's not enough indentation.\n" 1166 " */")); 1167 1168 EXPECT_EQ("int i; /* Comment with empty...\n" 1169 " *\n" 1170 " * line. */", 1171 format("int i; /* Comment with empty...\n" 1172 " *\n" 1173 " * line. */")); 1174 EXPECT_EQ("int foobar = 0; /* comment */\n" 1175 "int bar = 0; /* multiline\n" 1176 " comment 1 */\n" 1177 "int baz = 0; /* multiline\n" 1178 " comment 2 */\n" 1179 "int bzz = 0; /* multiline\n" 1180 " comment 3 */", 1181 format("int foobar = 0; /* comment */\n" 1182 "int bar = 0; /* multiline\n" 1183 " comment 1 */\n" 1184 "int baz = 0; /* multiline\n" 1185 " comment 2 */\n" 1186 "int bzz = 0; /* multiline\n" 1187 " comment 3 */")); 1188 EXPECT_EQ("int foobar = 0; /* comment */\n" 1189 "int bar = 0; /* multiline\n" 1190 " comment */\n" 1191 "int baz = 0; /* multiline\n" 1192 "comment */", 1193 format("int foobar = 0; /* comment */\n" 1194 "int bar = 0; /* multiline\n" 1195 "comment */\n" 1196 "int baz = 0; /* multiline\n" 1197 "comment */")); 1198 } 1199 1200 TEST_F(FormatTest, CommentReflowingCanBeTurnedOff) { 1201 FormatStyle Style = getLLVMStyleWithColumns(20); 1202 Style.ReflowComments = false; 1203 verifyFormat("// aaaaaaaaa aaaaaaaaaa aaaaaaaaaa", Style); 1204 verifyFormat("/* aaaaaaaaa aaaaaaaaaa aaaaaaaaaa */", Style); 1205 } 1206 1207 TEST_F(FormatTest, CorrectlyHandlesLengthOfBlockComments) { 1208 EXPECT_EQ("double *x; /* aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 1209 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa */", 1210 format("double *x; /* aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 1211 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa */")); 1212 EXPECT_EQ( 1213 "void ffffffffffff(\n" 1214 " int aaaaaaaa, int bbbbbbbb,\n" 1215 " int cccccccccccc) { /*\n" 1216 " aaaaaaaaaa\n" 1217 " aaaaaaaaaaaaa\n" 1218 " bbbbbbbbbbbbbb\n" 1219 " bbbbbbbbbb\n" 1220 " */\n" 1221 "}", 1222 format("void ffffffffffff(int aaaaaaaa, int bbbbbbbb, int cccccccccccc)\n" 1223 "{ /*\n" 1224 " aaaaaaaaaa aaaaaaaaaaaaa\n" 1225 " bbbbbbbbbbbbbb bbbbbbbbbb\n" 1226 " */\n" 1227 "}", 1228 getLLVMStyleWithColumns(40))); 1229 } 1230 1231 TEST_F(FormatTest, DontBreakNonTrailingBlockComments) { 1232 EXPECT_EQ("void ffffffffff(\n" 1233 " int aaaaa /* test */);", 1234 format("void ffffffffff(int aaaaa /* test */);", 1235 getLLVMStyleWithColumns(35))); 1236 } 1237 1238 TEST_F(FormatTest, SplitsLongCxxComments) { 1239 EXPECT_EQ("// A comment that\n" 1240 "// doesn't fit on\n" 1241 "// one line", 1242 format("// A comment that doesn't fit on one line", 1243 getLLVMStyleWithColumns(20))); 1244 EXPECT_EQ("/// A comment that\n" 1245 "/// doesn't fit on\n" 1246 "/// one line", 1247 format("/// A comment that doesn't fit on one line", 1248 getLLVMStyleWithColumns(20))); 1249 EXPECT_EQ("//! A comment that\n" 1250 "//! doesn't fit on\n" 1251 "//! one line", 1252 format("//! A comment that doesn't fit on one line", 1253 getLLVMStyleWithColumns(20))); 1254 EXPECT_EQ("// a b c d\n" 1255 "// e f g\n" 1256 "// h i j k", 1257 format("// a b c d e f g h i j k", getLLVMStyleWithColumns(10))); 1258 EXPECT_EQ( 1259 "// a b c d\n" 1260 "// e f g\n" 1261 "// h i j k", 1262 format("\\\n// a b c d e f g h i j k", getLLVMStyleWithColumns(10))); 1263 EXPECT_EQ("if (true) // A comment that\n" 1264 " // doesn't fit on\n" 1265 " // one line", 1266 format("if (true) // A comment that doesn't fit on one line ", 1267 getLLVMStyleWithColumns(30))); 1268 EXPECT_EQ("// Don't_touch_leading_whitespace", 1269 format("// Don't_touch_leading_whitespace", 1270 getLLVMStyleWithColumns(20))); 1271 EXPECT_EQ("// Add leading\n" 1272 "// whitespace", 1273 format("//Add leading whitespace", getLLVMStyleWithColumns(20))); 1274 EXPECT_EQ("/// Add leading\n" 1275 "/// whitespace", 1276 format("///Add leading whitespace", getLLVMStyleWithColumns(20))); 1277 EXPECT_EQ("//! Add leading\n" 1278 "//! whitespace", 1279 format("//!Add leading whitespace", getLLVMStyleWithColumns(20))); 1280 EXPECT_EQ("// whitespace", format("//whitespace", getLLVMStyle())); 1281 EXPECT_EQ("// Even if it makes the line exceed the column\n" 1282 "// limit", 1283 format("//Even if it makes the line exceed the column limit", 1284 getLLVMStyleWithColumns(51))); 1285 EXPECT_EQ("//--But not here", format("//--But not here", getLLVMStyle())); 1286 1287 EXPECT_EQ("// aa bb cc dd", 1288 format("// aa bb cc dd ", 1289 getLLVMStyleWithColumns(15))); 1290 1291 EXPECT_EQ("// A comment before\n" 1292 "// a macro\n" 1293 "// definition\n" 1294 "#define a b", 1295 format("// A comment before a macro definition\n" 1296 "#define a b", 1297 getLLVMStyleWithColumns(20))); 1298 EXPECT_EQ("void ffffff(\n" 1299 " int aaaaaaaaa, // wwww\n" 1300 " int bbbbbbbbbb, // xxxxxxx\n" 1301 " // yyyyyyyyyy\n" 1302 " int c, int d, int e) {}", 1303 format("void ffffff(\n" 1304 " int aaaaaaaaa, // wwww\n" 1305 " int bbbbbbbbbb, // xxxxxxx yyyyyyyyyy\n" 1306 " int c, int d, int e) {}", 1307 getLLVMStyleWithColumns(40))); 1308 EXPECT_EQ("//\t aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 1309 format("//\t aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 1310 getLLVMStyleWithColumns(20))); 1311 EXPECT_EQ( 1312 "#define XXX // a b c d\n" 1313 " // e f g h", 1314 format("#define XXX // a b c d e f g h", getLLVMStyleWithColumns(22))); 1315 EXPECT_EQ( 1316 "#define XXX // q w e r\n" 1317 " // t y u i", 1318 format("#define XXX //q w e r t y u i", getLLVMStyleWithColumns(22))); 1319 } 1320 1321 TEST_F(FormatTest, PreservesHangingIndentInCxxComments) { 1322 EXPECT_EQ("// A comment\n" 1323 "// that doesn't\n" 1324 "// fit on one\n" 1325 "// line", 1326 format("// A comment that doesn't fit on one line", 1327 getLLVMStyleWithColumns(20))); 1328 EXPECT_EQ("/// A comment\n" 1329 "/// that doesn't\n" 1330 "/// fit on one\n" 1331 "/// line", 1332 format("/// A comment that doesn't fit on one line", 1333 getLLVMStyleWithColumns(20))); 1334 } 1335 1336 TEST_F(FormatTest, DontSplitLineCommentsWithEscapedNewlines) { 1337 EXPECT_EQ("// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 1338 "// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 1339 "// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 1340 format("// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 1341 "// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 1342 "// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")); 1343 EXPECT_EQ("int a; // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1344 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1345 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", 1346 format("int a; // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1347 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1348 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", 1349 getLLVMStyleWithColumns(50))); 1350 // FIXME: One day we might want to implement adjustment of leading whitespace 1351 // of the consecutive lines in this kind of comment: 1352 EXPECT_EQ("double\n" 1353 " a; // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1354 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1355 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", 1356 format("double a; // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1357 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1358 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", 1359 getLLVMStyleWithColumns(49))); 1360 } 1361 1362 TEST_F(FormatTest, DontSplitLineCommentsWithPragmas) { 1363 FormatStyle Pragmas = getLLVMStyleWithColumns(30); 1364 Pragmas.CommentPragmas = "^ IWYU pragma:"; 1365 EXPECT_EQ( 1366 "// IWYU pragma: aaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbb", 1367 format("// IWYU pragma: aaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbb", Pragmas)); 1368 EXPECT_EQ( 1369 "/* IWYU pragma: aaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbb */", 1370 format("/* IWYU pragma: aaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbb */", Pragmas)); 1371 } 1372 1373 TEST_F(FormatTest, PriorityOfCommentBreaking) { 1374 EXPECT_EQ("if (xxx ==\n" 1375 " yyy && // aaaaaaaaaaaa bbbbbbbbb\n" 1376 " zzz)\n" 1377 " q();", 1378 format("if (xxx == yyy && // aaaaaaaaaaaa bbbbbbbbb\n" 1379 " zzz) q();", 1380 getLLVMStyleWithColumns(40))); 1381 EXPECT_EQ("if (xxxxxxxxxx ==\n" 1382 " yyy && // aaaaaa bbbbbbbb cccc\n" 1383 " zzz)\n" 1384 " q();", 1385 format("if (xxxxxxxxxx == yyy && // aaaaaa bbbbbbbb cccc\n" 1386 " zzz) q();", 1387 getLLVMStyleWithColumns(40))); 1388 EXPECT_EQ("if (xxxxxxxxxx &&\n" 1389 " yyy || // aaaaaa bbbbbbbb cccc\n" 1390 " zzz)\n" 1391 " q();", 1392 format("if (xxxxxxxxxx && yyy || // aaaaaa bbbbbbbb cccc\n" 1393 " zzz) q();", 1394 getLLVMStyleWithColumns(40))); 1395 EXPECT_EQ("fffffffff(\n" 1396 " &xxx, // aaaaaaaaaaaa bbbbbbbbbbb\n" 1397 " zzz);", 1398 format("fffffffff(&xxx, // aaaaaaaaaaaa bbbbbbbbbbb\n" 1399 " zzz);", 1400 getLLVMStyleWithColumns(40))); 1401 } 1402 1403 TEST_F(FormatTest, MultiLineCommentsInDefines) { 1404 EXPECT_EQ("#define A(x) /* \\\n" 1405 " a comment \\\n" 1406 " inside */ \\\n" 1407 " f();", 1408 format("#define A(x) /* \\\n" 1409 " a comment \\\n" 1410 " inside */ \\\n" 1411 " f();", 1412 getLLVMStyleWithColumns(17))); 1413 EXPECT_EQ("#define A( \\\n" 1414 " x) /* \\\n" 1415 " a comment \\\n" 1416 " inside */ \\\n" 1417 " f();", 1418 format("#define A( \\\n" 1419 " x) /* \\\n" 1420 " a comment \\\n" 1421 " inside */ \\\n" 1422 " f();", 1423 getLLVMStyleWithColumns(17))); 1424 } 1425 1426 TEST_F(FormatTest, ParsesCommentsAdjacentToPPDirectives) { 1427 EXPECT_EQ("namespace {}\n// Test\n#define A", 1428 format("namespace {}\n // Test\n#define A")); 1429 EXPECT_EQ("namespace {}\n/* Test */\n#define A", 1430 format("namespace {}\n /* Test */\n#define A")); 1431 EXPECT_EQ("namespace {}\n/* Test */ #define A", 1432 format("namespace {}\n /* Test */ #define A")); 1433 } 1434 1435 TEST_F(FormatTest, SplitsLongLinesInComments) { 1436 EXPECT_EQ("/* This is a long\n" 1437 " * comment that\n" 1438 " * doesn't\n" 1439 " * fit on one line.\n" 1440 " */", 1441 format("/* " 1442 "This is a long " 1443 "comment that " 1444 "doesn't " 1445 "fit on one line. */", 1446 getLLVMStyleWithColumns(20))); 1447 EXPECT_EQ( 1448 "/* a b c d\n" 1449 " * e f g\n" 1450 " * h i j k\n" 1451 " */", 1452 format("/* a b c d e f g h i j k */", getLLVMStyleWithColumns(10))); 1453 EXPECT_EQ( 1454 "/* a b c d\n" 1455 " * e f g\n" 1456 " * h i j k\n" 1457 " */", 1458 format("\\\n/* a b c d e f g h i j k */", getLLVMStyleWithColumns(10))); 1459 EXPECT_EQ("/*\n" 1460 "This is a long\n" 1461 "comment that doesn't\n" 1462 "fit on one line.\n" 1463 "*/", 1464 format("/*\n" 1465 "This is a long " 1466 "comment that doesn't " 1467 "fit on one line. \n" 1468 "*/", 1469 getLLVMStyleWithColumns(20))); 1470 EXPECT_EQ("/*\n" 1471 " * This is a long\n" 1472 " * comment that\n" 1473 " * doesn't fit on\n" 1474 " * one line.\n" 1475 " */", 1476 format("/* \n" 1477 " * This is a long " 1478 " comment that " 1479 " doesn't fit on " 1480 " one line. \n" 1481 " */", 1482 getLLVMStyleWithColumns(20))); 1483 EXPECT_EQ("/*\n" 1484 " * This_is_a_comment_with_words_that_dont_fit_on_one_line\n" 1485 " * so_it_should_be_broken\n" 1486 " * wherever_a_space_occurs\n" 1487 " */", 1488 format("/*\n" 1489 " * This_is_a_comment_with_words_that_dont_fit_on_one_line " 1490 " so_it_should_be_broken " 1491 " wherever_a_space_occurs \n" 1492 " */", 1493 getLLVMStyleWithColumns(20))); 1494 EXPECT_EQ("/*\n" 1495 " * This_comment_can_not_be_broken_into_lines\n" 1496 " */", 1497 format("/*\n" 1498 " * This_comment_can_not_be_broken_into_lines\n" 1499 " */", 1500 getLLVMStyleWithColumns(20))); 1501 EXPECT_EQ("{\n" 1502 " /*\n" 1503 " This is another\n" 1504 " long comment that\n" 1505 " doesn't fit on one\n" 1506 " line 1234567890\n" 1507 " */\n" 1508 "}", 1509 format("{\n" 1510 "/*\n" 1511 "This is another " 1512 " long comment that " 1513 " doesn't fit on one" 1514 " line 1234567890\n" 1515 "*/\n" 1516 "}", 1517 getLLVMStyleWithColumns(20))); 1518 EXPECT_EQ("{\n" 1519 " /*\n" 1520 " * This i s\n" 1521 " * another comment\n" 1522 " * t hat doesn' t\n" 1523 " * fit on one l i\n" 1524 " * n e\n" 1525 " */\n" 1526 "}", 1527 format("{\n" 1528 "/*\n" 1529 " * This i s" 1530 " another comment" 1531 " t hat doesn' t" 1532 " fit on one l i" 1533 " n e\n" 1534 " */\n" 1535 "}", 1536 getLLVMStyleWithColumns(20))); 1537 EXPECT_EQ("/*\n" 1538 " * This is a long\n" 1539 " * comment that\n" 1540 " * doesn't fit on\n" 1541 " * one line\n" 1542 " */", 1543 format(" /*\n" 1544 " * This is a long comment that doesn't fit on one line\n" 1545 " */", 1546 getLLVMStyleWithColumns(20))); 1547 EXPECT_EQ("{\n" 1548 " if (something) /* This is a\n" 1549 " long\n" 1550 " comment */\n" 1551 " ;\n" 1552 "}", 1553 format("{\n" 1554 " if (something) /* This is a long comment */\n" 1555 " ;\n" 1556 "}", 1557 getLLVMStyleWithColumns(30))); 1558 1559 EXPECT_EQ("/* A comment before\n" 1560 " * a macro\n" 1561 " * definition */\n" 1562 "#define a b", 1563 format("/* A comment before a macro definition */\n" 1564 "#define a b", 1565 getLLVMStyleWithColumns(20))); 1566 1567 EXPECT_EQ("/* some comment\n" 1568 " * a comment\n" 1569 "* that we break\n" 1570 " * another comment\n" 1571 "* we have to break\n" 1572 "* a left comment\n" 1573 " */", 1574 format(" /* some comment\n" 1575 " * a comment that we break\n" 1576 " * another comment we have to break\n" 1577 "* a left comment\n" 1578 " */", 1579 getLLVMStyleWithColumns(20))); 1580 1581 EXPECT_EQ("/**\n" 1582 " * multiline block\n" 1583 " * comment\n" 1584 " *\n" 1585 " */", 1586 format("/**\n" 1587 " * multiline block comment\n" 1588 " *\n" 1589 " */", 1590 getLLVMStyleWithColumns(20))); 1591 1592 EXPECT_EQ("/*\n" 1593 "\n" 1594 "\n" 1595 " */\n", 1596 format(" /* \n" 1597 " \n" 1598 " \n" 1599 " */\n")); 1600 1601 EXPECT_EQ("/* a a */", 1602 format("/* a a */", getLLVMStyleWithColumns(15))); 1603 EXPECT_EQ("/* a a bc */", 1604 format("/* a a bc */", getLLVMStyleWithColumns(15))); 1605 EXPECT_EQ("/* aaa aaa\n" 1606 " * aaaaa */", 1607 format("/* aaa aaa aaaaa */", getLLVMStyleWithColumns(15))); 1608 EXPECT_EQ("/* aaa aaa\n" 1609 " * aaaaa */", 1610 format("/* aaa aaa aaaaa */", getLLVMStyleWithColumns(15))); 1611 } 1612 1613 TEST_F(FormatTest, SplitsLongLinesInCommentsInPreprocessor) { 1614 EXPECT_EQ("#define X \\\n" 1615 " /* \\\n" 1616 " Test \\\n" 1617 " Macro comment \\\n" 1618 " with a long \\\n" 1619 " line \\\n" 1620 " */ \\\n" 1621 " A + B", 1622 format("#define X \\\n" 1623 " /*\n" 1624 " Test\n" 1625 " Macro comment with a long line\n" 1626 " */ \\\n" 1627 " A + B", 1628 getLLVMStyleWithColumns(20))); 1629 EXPECT_EQ("#define X \\\n" 1630 " /* Macro comment \\\n" 1631 " with a long \\\n" 1632 " line */ \\\n" 1633 " A + B", 1634 format("#define X \\\n" 1635 " /* Macro comment with a long\n" 1636 " line */ \\\n" 1637 " A + B", 1638 getLLVMStyleWithColumns(20))); 1639 EXPECT_EQ("#define X \\\n" 1640 " /* Macro comment \\\n" 1641 " * with a long \\\n" 1642 " * line */ \\\n" 1643 " A + B", 1644 format("#define X \\\n" 1645 " /* Macro comment with a long line */ \\\n" 1646 " A + B", 1647 getLLVMStyleWithColumns(20))); 1648 } 1649 1650 TEST_F(FormatTest, CommentsInStaticInitializers) { 1651 EXPECT_EQ( 1652 "static SomeType type = {aaaaaaaaaaaaaaaaaaaa, /* comment */\n" 1653 " aaaaaaaaaaaaaaaaaaaa /* comment */,\n" 1654 " /* comment */ aaaaaaaaaaaaaaaaaaaa,\n" 1655 " aaaaaaaaaaaaaaaaaaaa, // comment\n" 1656 " aaaaaaaaaaaaaaaaaaaa};", 1657 format("static SomeType type = { aaaaaaaaaaaaaaaaaaaa , /* comment */\n" 1658 " aaaaaaaaaaaaaaaaaaaa /* comment */ ,\n" 1659 " /* comment */ aaaaaaaaaaaaaaaaaaaa ,\n" 1660 " aaaaaaaaaaaaaaaaaaaa , // comment\n" 1661 " aaaaaaaaaaaaaaaaaaaa };")); 1662 verifyFormat("static SomeType type = {aaaaaaaaaaa, // comment for aa...\n" 1663 " bbbbbbbbbbb, ccccccccccc};"); 1664 verifyFormat("static SomeType type = {aaaaaaaaaaa,\n" 1665 " // comment for bb....\n" 1666 " bbbbbbbbbbb, ccccccccccc};"); 1667 verifyGoogleFormat( 1668 "static SomeType type = {aaaaaaaaaaa, // comment for aa...\n" 1669 " bbbbbbbbbbb, ccccccccccc};"); 1670 verifyGoogleFormat("static SomeType type = {aaaaaaaaaaa,\n" 1671 " // comment for bb....\n" 1672 " bbbbbbbbbbb, ccccccccccc};"); 1673 1674 verifyFormat("S s = {{a, b, c}, // Group #1\n" 1675 " {d, e, f}, // Group #2\n" 1676 " {g, h, i}}; // Group #3"); 1677 verifyFormat("S s = {{// Group #1\n" 1678 " a, b, c},\n" 1679 " {// Group #2\n" 1680 " d, e, f},\n" 1681 " {// Group #3\n" 1682 " g, h, i}};"); 1683 1684 EXPECT_EQ("S s = {\n" 1685 " // Some comment\n" 1686 " a,\n" 1687 "\n" 1688 " // Comment after empty line\n" 1689 " b}", 1690 format("S s = {\n" 1691 " // Some comment\n" 1692 " a,\n" 1693 " \n" 1694 " // Comment after empty line\n" 1695 " b\n" 1696 "}")); 1697 EXPECT_EQ("S s = {\n" 1698 " /* Some comment */\n" 1699 " a,\n" 1700 "\n" 1701 " /* Comment after empty line */\n" 1702 " b}", 1703 format("S s = {\n" 1704 " /* Some comment */\n" 1705 " a,\n" 1706 " \n" 1707 " /* Comment after empty line */\n" 1708 " b\n" 1709 "}")); 1710 verifyFormat("const uint8_t aaaaaaaaaaaaaaaaaaaaaa[0] = {\n" 1711 " 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // comment\n" 1712 " 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // comment\n" 1713 " 0x00, 0x00, 0x00, 0x00}; // comment\n"); 1714 } 1715 1716 TEST_F(FormatTest, IgnoresIf0Contents) { 1717 EXPECT_EQ("#if 0\n" 1718 "}{)(&*(^%%#%@! fsadj f;ldjs ,:;| <<<>>>][)(][\n" 1719 "#endif\n" 1720 "void f() {}", 1721 format("#if 0\n" 1722 "}{)(&*(^%%#%@! fsadj f;ldjs ,:;| <<<>>>][)(][\n" 1723 "#endif\n" 1724 "void f( ) { }")); 1725 EXPECT_EQ("#if false\n" 1726 "void f( ) { }\n" 1727 "#endif\n" 1728 "void g() {}\n", 1729 format("#if false\n" 1730 "void f( ) { }\n" 1731 "#endif\n" 1732 "void g( ) { }\n")); 1733 EXPECT_EQ("enum E {\n" 1734 " One,\n" 1735 " Two,\n" 1736 "#if 0\n" 1737 "Three,\n" 1738 " Four,\n" 1739 "#endif\n" 1740 " Five\n" 1741 "};", 1742 format("enum E {\n" 1743 " One,Two,\n" 1744 "#if 0\n" 1745 "Three,\n" 1746 " Four,\n" 1747 "#endif\n" 1748 " Five};")); 1749 EXPECT_EQ("enum F {\n" 1750 " One,\n" 1751 "#if 1\n" 1752 " Two,\n" 1753 "#if 0\n" 1754 "Three,\n" 1755 " Four,\n" 1756 "#endif\n" 1757 " Five\n" 1758 "#endif\n" 1759 "};", 1760 format("enum F {\n" 1761 "One,\n" 1762 "#if 1\n" 1763 "Two,\n" 1764 "#if 0\n" 1765 "Three,\n" 1766 " Four,\n" 1767 "#endif\n" 1768 "Five\n" 1769 "#endif\n" 1770 "};")); 1771 EXPECT_EQ("enum G {\n" 1772 " One,\n" 1773 "#if 0\n" 1774 "Two,\n" 1775 "#else\n" 1776 " Three,\n" 1777 "#endif\n" 1778 " Four\n" 1779 "};", 1780 format("enum G {\n" 1781 "One,\n" 1782 "#if 0\n" 1783 "Two,\n" 1784 "#else\n" 1785 "Three,\n" 1786 "#endif\n" 1787 "Four\n" 1788 "};")); 1789 EXPECT_EQ("enum H {\n" 1790 " One,\n" 1791 "#if 0\n" 1792 "#ifdef Q\n" 1793 "Two,\n" 1794 "#else\n" 1795 "Three,\n" 1796 "#endif\n" 1797 "#endif\n" 1798 " Four\n" 1799 "};", 1800 format("enum H {\n" 1801 "One,\n" 1802 "#if 0\n" 1803 "#ifdef Q\n" 1804 "Two,\n" 1805 "#else\n" 1806 "Three,\n" 1807 "#endif\n" 1808 "#endif\n" 1809 "Four\n" 1810 "};")); 1811 EXPECT_EQ("enum I {\n" 1812 " One,\n" 1813 "#if /* test */ 0 || 1\n" 1814 "Two,\n" 1815 "Three,\n" 1816 "#endif\n" 1817 " Four\n" 1818 "};", 1819 format("enum I {\n" 1820 "One,\n" 1821 "#if /* test */ 0 || 1\n" 1822 "Two,\n" 1823 "Three,\n" 1824 "#endif\n" 1825 "Four\n" 1826 "};")); 1827 EXPECT_EQ("enum J {\n" 1828 " One,\n" 1829 "#if 0\n" 1830 "#if 0\n" 1831 "Two,\n" 1832 "#else\n" 1833 "Three,\n" 1834 "#endif\n" 1835 "Four,\n" 1836 "#endif\n" 1837 " Five\n" 1838 "};", 1839 format("enum J {\n" 1840 "One,\n" 1841 "#if 0\n" 1842 "#if 0\n" 1843 "Two,\n" 1844 "#else\n" 1845 "Three,\n" 1846 "#endif\n" 1847 "Four,\n" 1848 "#endif\n" 1849 "Five\n" 1850 "};")); 1851 } 1852 1853 //===----------------------------------------------------------------------===// 1854 // Tests for classes, namespaces, etc. 1855 //===----------------------------------------------------------------------===// 1856 1857 TEST_F(FormatTest, DoesNotBreakSemiAfterClassDecl) { 1858 verifyFormat("class A {};"); 1859 } 1860 1861 TEST_F(FormatTest, UnderstandsAccessSpecifiers) { 1862 verifyFormat("class A {\n" 1863 "public:\n" 1864 "public: // comment\n" 1865 "protected:\n" 1866 "private:\n" 1867 " void f() {}\n" 1868 "};"); 1869 verifyGoogleFormat("class A {\n" 1870 " public:\n" 1871 " protected:\n" 1872 " private:\n" 1873 " void f() {}\n" 1874 "};"); 1875 verifyFormat("class A {\n" 1876 "public slots:\n" 1877 " void f1() {}\n" 1878 "public Q_SLOTS:\n" 1879 " void f2() {}\n" 1880 "protected slots:\n" 1881 " void f3() {}\n" 1882 "protected Q_SLOTS:\n" 1883 " void f4() {}\n" 1884 "private slots:\n" 1885 " void f5() {}\n" 1886 "private Q_SLOTS:\n" 1887 " void f6() {}\n" 1888 "signals:\n" 1889 " void g1();\n" 1890 "Q_SIGNALS:\n" 1891 " void g2();\n" 1892 "};"); 1893 1894 // Don't interpret 'signals' the wrong way. 1895 verifyFormat("signals.set();"); 1896 verifyFormat("for (Signals signals : f()) {\n}"); 1897 verifyFormat("{\n" 1898 " signals.set(); // This needs indentation.\n" 1899 "}"); 1900 } 1901 1902 TEST_F(FormatTest, SeparatesLogicalBlocks) { 1903 EXPECT_EQ("class A {\n" 1904 "public:\n" 1905 " void f();\n" 1906 "\n" 1907 "private:\n" 1908 " void g() {}\n" 1909 " // test\n" 1910 "protected:\n" 1911 " int h;\n" 1912 "};", 1913 format("class A {\n" 1914 "public:\n" 1915 "void f();\n" 1916 "private:\n" 1917 "void g() {}\n" 1918 "// test\n" 1919 "protected:\n" 1920 "int h;\n" 1921 "};")); 1922 EXPECT_EQ("class A {\n" 1923 "protected:\n" 1924 "public:\n" 1925 " void f();\n" 1926 "};", 1927 format("class A {\n" 1928 "protected:\n" 1929 "\n" 1930 "public:\n" 1931 "\n" 1932 " void f();\n" 1933 "};")); 1934 1935 // Even ensure proper spacing inside macros. 1936 EXPECT_EQ("#define B \\\n" 1937 " class A { \\\n" 1938 " protected: \\\n" 1939 " public: \\\n" 1940 " void f(); \\\n" 1941 " };", 1942 format("#define B \\\n" 1943 " class A { \\\n" 1944 " protected: \\\n" 1945 " \\\n" 1946 " public: \\\n" 1947 " \\\n" 1948 " void f(); \\\n" 1949 " };", 1950 getGoogleStyle())); 1951 // But don't remove empty lines after macros ending in access specifiers. 1952 EXPECT_EQ("#define A private:\n" 1953 "\n" 1954 "int i;", 1955 format("#define A private:\n" 1956 "\n" 1957 "int i;")); 1958 } 1959 1960 TEST_F(FormatTest, FormatsClasses) { 1961 verifyFormat("class A : public B {};"); 1962 verifyFormat("class A : public ::B {};"); 1963 1964 verifyFormat( 1965 "class AAAAAAAAAAAAAAAAAAAA : public BBBBBBBBBBBBBBBBBBBBBBBBBBBBBB,\n" 1966 " public CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC {};"); 1967 verifyFormat("class AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n" 1968 " : public BBBBBBBBBBBBBBBBBBBBBBBBBBBBBB,\n" 1969 " public CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC {};"); 1970 verifyFormat( 1971 "class A : public B, public C, public D, public E, public F {};"); 1972 verifyFormat("class AAAAAAAAAAAA : public B,\n" 1973 " public C,\n" 1974 " public D,\n" 1975 " public E,\n" 1976 " public F,\n" 1977 " public G {};"); 1978 1979 verifyFormat("class\n" 1980 " ReallyReallyLongClassName {\n" 1981 " int i;\n" 1982 "};", 1983 getLLVMStyleWithColumns(32)); 1984 verifyFormat("struct aaaaaaaaaaaaa : public aaaaaaaaaaaaaaaaaaa< // break\n" 1985 " aaaaaaaaaaaaaaaa> {};"); 1986 verifyFormat("struct aaaaaaaaaaaaaaaaaaaa\n" 1987 " : public aaaaaaaaaaaaaaaaaaa<aaaaaaaaaaaaaaaaaaaaa,\n" 1988 " aaaaaaaaaaaaaaaaaaaaaa> {};"); 1989 verifyFormat("template <class R, class C>\n" 1990 "struct Aaaaaaaaaaaaaaaaa<R (C::*)(int) const>\n" 1991 " : Aaaaaaaaaaaaaaaaa<R (C::*)(int)> {};"); 1992 verifyFormat("class ::A::B {};"); 1993 } 1994 1995 TEST_F(FormatTest, FormatsVariableDeclarationsAfterStructOrClass) { 1996 verifyFormat("class A {\n} a, b;"); 1997 verifyFormat("struct A {\n} a, b;"); 1998 verifyFormat("union A {\n} a;"); 1999 } 2000 2001 TEST_F(FormatTest, FormatsEnum) { 2002 verifyFormat("enum {\n" 2003 " Zero,\n" 2004 " One = 1,\n" 2005 " Two = One + 1,\n" 2006 " Three = (One + Two),\n" 2007 " Four = (Zero && (One ^ Two)) | (One << Two),\n" 2008 " Five = (One, Two, Three, Four, 5)\n" 2009 "};"); 2010 verifyGoogleFormat("enum {\n" 2011 " Zero,\n" 2012 " One = 1,\n" 2013 " Two = One + 1,\n" 2014 " Three = (One + Two),\n" 2015 " Four = (Zero && (One ^ Two)) | (One << Two),\n" 2016 " Five = (One, Two, Three, Four, 5)\n" 2017 "};"); 2018 verifyFormat("enum Enum {};"); 2019 verifyFormat("enum {};"); 2020 verifyFormat("enum X E {} d;"); 2021 verifyFormat("enum __attribute__((...)) E {} d;"); 2022 verifyFormat("enum __declspec__((...)) E {} d;"); 2023 verifyFormat("enum {\n" 2024 " Bar = Foo<int, int>::value\n" 2025 "};", 2026 getLLVMStyleWithColumns(30)); 2027 2028 verifyFormat("enum ShortEnum { A, B, C };"); 2029 verifyGoogleFormat("enum ShortEnum { A, B, C };"); 2030 2031 EXPECT_EQ("enum KeepEmptyLines {\n" 2032 " ONE,\n" 2033 "\n" 2034 " TWO,\n" 2035 "\n" 2036 " THREE\n" 2037 "}", 2038 format("enum KeepEmptyLines {\n" 2039 " ONE,\n" 2040 "\n" 2041 " TWO,\n" 2042 "\n" 2043 "\n" 2044 " THREE\n" 2045 "}")); 2046 verifyFormat("enum E { // comment\n" 2047 " ONE,\n" 2048 " TWO\n" 2049 "};\n" 2050 "int i;"); 2051 // Not enums. 2052 verifyFormat("enum X f() {\n" 2053 " a();\n" 2054 " return 42;\n" 2055 "}"); 2056 verifyFormat("enum X Type::f() {\n" 2057 " a();\n" 2058 " return 42;\n" 2059 "}"); 2060 verifyFormat("enum ::X f() {\n" 2061 " a();\n" 2062 " return 42;\n" 2063 "}"); 2064 verifyFormat("enum ns::X f() {\n" 2065 " a();\n" 2066 " return 42;\n" 2067 "}"); 2068 } 2069 2070 TEST_F(FormatTest, FormatsEnumsWithErrors) { 2071 verifyFormat("enum Type {\n" 2072 " One = 0; // These semicolons should be commas.\n" 2073 " Two = 1;\n" 2074 "};"); 2075 verifyFormat("namespace n {\n" 2076 "enum Type {\n" 2077 " One,\n" 2078 " Two, // missing };\n" 2079 " int i;\n" 2080 "}\n" 2081 "void g() {}"); 2082 } 2083 2084 TEST_F(FormatTest, FormatsEnumStruct) { 2085 verifyFormat("enum struct {\n" 2086 " Zero,\n" 2087 " One = 1,\n" 2088 " Two = One + 1,\n" 2089 " Three = (One + Two),\n" 2090 " Four = (Zero && (One ^ Two)) | (One << Two),\n" 2091 " Five = (One, Two, Three, Four, 5)\n" 2092 "};"); 2093 verifyFormat("enum struct Enum {};"); 2094 verifyFormat("enum struct {};"); 2095 verifyFormat("enum struct X E {} d;"); 2096 verifyFormat("enum struct __attribute__((...)) E {} d;"); 2097 verifyFormat("enum struct __declspec__((...)) E {} d;"); 2098 verifyFormat("enum struct X f() {\n a();\n return 42;\n}"); 2099 } 2100 2101 TEST_F(FormatTest, FormatsEnumClass) { 2102 verifyFormat("enum class {\n" 2103 " Zero,\n" 2104 " One = 1,\n" 2105 " Two = One + 1,\n" 2106 " Three = (One + Two),\n" 2107 " Four = (Zero && (One ^ Two)) | (One << Two),\n" 2108 " Five = (One, Two, Three, Four, 5)\n" 2109 "};"); 2110 verifyFormat("enum class Enum {};"); 2111 verifyFormat("enum class {};"); 2112 verifyFormat("enum class X E {} d;"); 2113 verifyFormat("enum class __attribute__((...)) E {} d;"); 2114 verifyFormat("enum class __declspec__((...)) E {} d;"); 2115 verifyFormat("enum class X f() {\n a();\n return 42;\n}"); 2116 } 2117 2118 TEST_F(FormatTest, FormatsEnumTypes) { 2119 verifyFormat("enum X : int {\n" 2120 " A, // Force multiple lines.\n" 2121 " B\n" 2122 "};"); 2123 verifyFormat("enum X : int { A, B };"); 2124 verifyFormat("enum X : std::uint32_t { A, B };"); 2125 } 2126 2127 TEST_F(FormatTest, FormatsNSEnums) { 2128 verifyGoogleFormat("typedef NS_ENUM(NSInteger, SomeName) { AAA, BBB }"); 2129 verifyGoogleFormat("typedef NS_ENUM(NSInteger, MyType) {\n" 2130 " // Information about someDecentlyLongValue.\n" 2131 " someDecentlyLongValue,\n" 2132 " // Information about anotherDecentlyLongValue.\n" 2133 " anotherDecentlyLongValue,\n" 2134 " // Information about aThirdDecentlyLongValue.\n" 2135 " aThirdDecentlyLongValue\n" 2136 "};"); 2137 verifyGoogleFormat("typedef NS_OPTIONS(NSInteger, MyType) {\n" 2138 " a = 1,\n" 2139 " b = 2,\n" 2140 " c = 3,\n" 2141 "};"); 2142 verifyGoogleFormat("typedef CF_ENUM(NSInteger, MyType) {\n" 2143 " a = 1,\n" 2144 " b = 2,\n" 2145 " c = 3,\n" 2146 "};"); 2147 verifyGoogleFormat("typedef CF_OPTIONS(NSInteger, MyType) {\n" 2148 " a = 1,\n" 2149 " b = 2,\n" 2150 " c = 3,\n" 2151 "};"); 2152 } 2153 2154 TEST_F(FormatTest, FormatsBitfields) { 2155 verifyFormat("struct Bitfields {\n" 2156 " unsigned sClass : 8;\n" 2157 " unsigned ValueKind : 2;\n" 2158 "};"); 2159 verifyFormat("struct A {\n" 2160 " int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa : 1,\n" 2161 " bbbbbbbbbbbbbbbbbbbbbbbbb;\n" 2162 "};"); 2163 verifyFormat("struct MyStruct {\n" 2164 " uchar data;\n" 2165 " uchar : 8;\n" 2166 " uchar : 8;\n" 2167 " uchar other;\n" 2168 "};"); 2169 } 2170 2171 TEST_F(FormatTest, FormatsNamespaces) { 2172 verifyFormat("namespace some_namespace {\n" 2173 "class A {};\n" 2174 "void f() { f(); }\n" 2175 "}"); 2176 verifyFormat("namespace {\n" 2177 "class A {};\n" 2178 "void f() { f(); }\n" 2179 "}"); 2180 verifyFormat("inline namespace X {\n" 2181 "class A {};\n" 2182 "void f() { f(); }\n" 2183 "}"); 2184 verifyFormat("using namespace some_namespace;\n" 2185 "class A {};\n" 2186 "void f() { f(); }"); 2187 2188 // This code is more common than we thought; if we 2189 // layout this correctly the semicolon will go into 2190 // its own line, which is undesirable. 2191 verifyFormat("namespace {};"); 2192 verifyFormat("namespace {\n" 2193 "class A {};\n" 2194 "};"); 2195 2196 verifyFormat("namespace {\n" 2197 "int SomeVariable = 0; // comment\n" 2198 "} // namespace"); 2199 EXPECT_EQ("#ifndef HEADER_GUARD\n" 2200 "#define HEADER_GUARD\n" 2201 "namespace my_namespace {\n" 2202 "int i;\n" 2203 "} // my_namespace\n" 2204 "#endif // HEADER_GUARD", 2205 format("#ifndef HEADER_GUARD\n" 2206 " #define HEADER_GUARD\n" 2207 " namespace my_namespace {\n" 2208 "int i;\n" 2209 "} // my_namespace\n" 2210 "#endif // HEADER_GUARD")); 2211 2212 EXPECT_EQ("namespace A::B {\n" 2213 "class C {};\n" 2214 "}", 2215 format("namespace A::B {\n" 2216 "class C {};\n" 2217 "}")); 2218 2219 FormatStyle Style = getLLVMStyle(); 2220 Style.NamespaceIndentation = FormatStyle::NI_All; 2221 EXPECT_EQ("namespace out {\n" 2222 " int i;\n" 2223 " namespace in {\n" 2224 " int i;\n" 2225 " } // namespace\n" 2226 "} // namespace", 2227 format("namespace out {\n" 2228 "int i;\n" 2229 "namespace in {\n" 2230 "int i;\n" 2231 "} // namespace\n" 2232 "} // namespace", 2233 Style)); 2234 2235 Style.NamespaceIndentation = FormatStyle::NI_Inner; 2236 EXPECT_EQ("namespace out {\n" 2237 "int i;\n" 2238 "namespace in {\n" 2239 " int i;\n" 2240 "} // namespace\n" 2241 "} // namespace", 2242 format("namespace out {\n" 2243 "int i;\n" 2244 "namespace in {\n" 2245 "int i;\n" 2246 "} // namespace\n" 2247 "} // namespace", 2248 Style)); 2249 } 2250 2251 TEST_F(FormatTest, FormatsExternC) { verifyFormat("extern \"C\" {\nint a;"); } 2252 2253 TEST_F(FormatTest, FormatsInlineASM) { 2254 verifyFormat("asm(\"xyz\" : \"=a\"(a), \"=d\"(b) : \"a\"(data));"); 2255 verifyFormat("asm(\"nop\" ::: \"memory\");"); 2256 verifyFormat( 2257 "asm(\"movq\\t%%rbx, %%rsi\\n\\t\"\n" 2258 " \"cpuid\\n\\t\"\n" 2259 " \"xchgq\\t%%rbx, %%rsi\\n\\t\"\n" 2260 " : \"=a\"(*rEAX), \"=S\"(*rEBX), \"=c\"(*rECX), \"=d\"(*rEDX)\n" 2261 " : \"a\"(value));"); 2262 EXPECT_EQ( 2263 "void NS_InvokeByIndex(void *that, unsigned int methodIndex) {\n" 2264 " __asm {\n" 2265 " mov edx,[that] // vtable in edx\n" 2266 " mov eax,methodIndex\n" 2267 " call [edx][eax*4] // stdcall\n" 2268 " }\n" 2269 "}", 2270 format("void NS_InvokeByIndex(void *that, unsigned int methodIndex) {\n" 2271 " __asm {\n" 2272 " mov edx,[that] // vtable in edx\n" 2273 " mov eax,methodIndex\n" 2274 " call [edx][eax*4] // stdcall\n" 2275 " }\n" 2276 "}")); 2277 EXPECT_EQ("_asm {\n" 2278 " xor eax, eax;\n" 2279 " cpuid;\n" 2280 "}", 2281 format("_asm {\n" 2282 " xor eax, eax;\n" 2283 " cpuid;\n" 2284 "}")); 2285 verifyFormat("void function() {\n" 2286 " // comment\n" 2287 " asm(\"\");\n" 2288 "}"); 2289 EXPECT_EQ("__asm {\n" 2290 "}\n" 2291 "int i;", 2292 format("__asm {\n" 2293 "}\n" 2294 "int i;")); 2295 } 2296 2297 TEST_F(FormatTest, FormatTryCatch) { 2298 verifyFormat("try {\n" 2299 " throw a * b;\n" 2300 "} catch (int a) {\n" 2301 " // Do nothing.\n" 2302 "} catch (...) {\n" 2303 " exit(42);\n" 2304 "}"); 2305 2306 // Function-level try statements. 2307 verifyFormat("int f() try { return 4; } catch (...) {\n" 2308 " return 5;\n" 2309 "}"); 2310 verifyFormat("class A {\n" 2311 " int a;\n" 2312 " A() try : a(0) {\n" 2313 " } catch (...) {\n" 2314 " throw;\n" 2315 " }\n" 2316 "};\n"); 2317 2318 // Incomplete try-catch blocks. 2319 verifyIncompleteFormat("try {} catch ("); 2320 } 2321 2322 TEST_F(FormatTest, FormatSEHTryCatch) { 2323 verifyFormat("__try {\n" 2324 " int a = b * c;\n" 2325 "} __except (EXCEPTION_EXECUTE_HANDLER) {\n" 2326 " // Do nothing.\n" 2327 "}"); 2328 2329 verifyFormat("__try {\n" 2330 " int a = b * c;\n" 2331 "} __finally {\n" 2332 " // Do nothing.\n" 2333 "}"); 2334 2335 verifyFormat("DEBUG({\n" 2336 " __try {\n" 2337 " } __finally {\n" 2338 " }\n" 2339 "});\n"); 2340 } 2341 2342 TEST_F(FormatTest, IncompleteTryCatchBlocks) { 2343 verifyFormat("try {\n" 2344 " f();\n" 2345 "} catch {\n" 2346 " g();\n" 2347 "}"); 2348 verifyFormat("try {\n" 2349 " f();\n" 2350 "} catch (A a) MACRO(x) {\n" 2351 " g();\n" 2352 "} catch (B b) MACRO(x) {\n" 2353 " g();\n" 2354 "}"); 2355 } 2356 2357 TEST_F(FormatTest, FormatTryCatchBraceStyles) { 2358 FormatStyle Style = getLLVMStyle(); 2359 for (auto BraceStyle : {FormatStyle::BS_Attach, FormatStyle::BS_Mozilla, 2360 FormatStyle::BS_WebKit}) { 2361 Style.BreakBeforeBraces = BraceStyle; 2362 verifyFormat("try {\n" 2363 " // something\n" 2364 "} catch (...) {\n" 2365 " // something\n" 2366 "}", 2367 Style); 2368 } 2369 Style.BreakBeforeBraces = FormatStyle::BS_Stroustrup; 2370 verifyFormat("try {\n" 2371 " // something\n" 2372 "}\n" 2373 "catch (...) {\n" 2374 " // something\n" 2375 "}", 2376 Style); 2377 verifyFormat("__try {\n" 2378 " // something\n" 2379 "}\n" 2380 "__finally {\n" 2381 " // something\n" 2382 "}", 2383 Style); 2384 verifyFormat("@try {\n" 2385 " // something\n" 2386 "}\n" 2387 "@finally {\n" 2388 " // something\n" 2389 "}", 2390 Style); 2391 Style.BreakBeforeBraces = FormatStyle::BS_Allman; 2392 verifyFormat("try\n" 2393 "{\n" 2394 " // something\n" 2395 "}\n" 2396 "catch (...)\n" 2397 "{\n" 2398 " // something\n" 2399 "}", 2400 Style); 2401 Style.BreakBeforeBraces = FormatStyle::BS_GNU; 2402 verifyFormat("try\n" 2403 " {\n" 2404 " // something\n" 2405 " }\n" 2406 "catch (...)\n" 2407 " {\n" 2408 " // something\n" 2409 " }", 2410 Style); 2411 Style.BreakBeforeBraces = FormatStyle::BS_Custom; 2412 Style.BraceWrapping.BeforeCatch = true; 2413 verifyFormat("try {\n" 2414 " // something\n" 2415 "}\n" 2416 "catch (...) {\n" 2417 " // something\n" 2418 "}", 2419 Style); 2420 } 2421 2422 TEST_F(FormatTest, FormatObjCTryCatch) { 2423 verifyFormat("@try {\n" 2424 " f();\n" 2425 "} @catch (NSException e) {\n" 2426 " @throw;\n" 2427 "} @finally {\n" 2428 " exit(42);\n" 2429 "}"); 2430 verifyFormat("DEBUG({\n" 2431 " @try {\n" 2432 " } @finally {\n" 2433 " }\n" 2434 "});\n"); 2435 } 2436 2437 TEST_F(FormatTest, FormatObjCAutoreleasepool) { 2438 FormatStyle Style = getLLVMStyle(); 2439 verifyFormat("@autoreleasepool {\n" 2440 " f();\n" 2441 "}\n" 2442 "@autoreleasepool {\n" 2443 " f();\n" 2444 "}\n", 2445 Style); 2446 Style.BreakBeforeBraces = FormatStyle::BS_Allman; 2447 verifyFormat("@autoreleasepool\n" 2448 "{\n" 2449 " f();\n" 2450 "}\n" 2451 "@autoreleasepool\n" 2452 "{\n" 2453 " f();\n" 2454 "}\n", 2455 Style); 2456 } 2457 2458 TEST_F(FormatTest, StaticInitializers) { 2459 verifyFormat("static SomeClass SC = {1, 'a'};"); 2460 2461 verifyFormat("static SomeClass WithALoooooooooooooooooooongName = {\n" 2462 " 100000000, " 2463 "\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"};"); 2464 2465 // Here, everything other than the "}" would fit on a line. 2466 verifyFormat("static int LooooooooooooooooooooooooongVariable[1] = {\n" 2467 " 10000000000000000000000000};"); 2468 EXPECT_EQ("S s = {a,\n" 2469 "\n" 2470 " b};", 2471 format("S s = {\n" 2472 " a,\n" 2473 "\n" 2474 " b\n" 2475 "};")); 2476 2477 // FIXME: This would fit into the column limit if we'd fit "{ {" on the first 2478 // line. However, the formatting looks a bit off and this probably doesn't 2479 // happen often in practice. 2480 verifyFormat("static int Variable[1] = {\n" 2481 " {1000000000000000000000000000000000000}};", 2482 getLLVMStyleWithColumns(40)); 2483 } 2484 2485 TEST_F(FormatTest, DesignatedInitializers) { 2486 verifyFormat("const struct A a = {.a = 1, .b = 2};"); 2487 verifyFormat("const struct A a = {.aaaaaaaaaa = 1,\n" 2488 " .bbbbbbbbbb = 2,\n" 2489 " .cccccccccc = 3,\n" 2490 " .dddddddddd = 4,\n" 2491 " .eeeeeeeeee = 5};"); 2492 verifyFormat("const struct Aaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaa = {\n" 2493 " .aaaaaaaaaaaaaaaaaaaaaaaaaaa = 1,\n" 2494 " .bbbbbbbbbbbbbbbbbbbbbbbbbbb = 2,\n" 2495 " .ccccccccccccccccccccccccccc = 3,\n" 2496 " .ddddddddddddddddddddddddddd = 4,\n" 2497 " .eeeeeeeeeeeeeeeeeeeeeeeeeee = 5};"); 2498 2499 verifyGoogleFormat("const struct A a = {.a = 1, .b = 2};"); 2500 } 2501 2502 TEST_F(FormatTest, NestedStaticInitializers) { 2503 verifyFormat("static A x = {{{}}};\n"); 2504 verifyFormat("static A x = {{{init1, init2, init3, init4},\n" 2505 " {init1, init2, init3, init4}}};", 2506 getLLVMStyleWithColumns(50)); 2507 2508 verifyFormat("somes Status::global_reps[3] = {\n" 2509 " {kGlobalRef, OK_CODE, NULL, NULL, NULL},\n" 2510 " {kGlobalRef, CANCELLED_CODE, NULL, NULL, NULL},\n" 2511 " {kGlobalRef, UNKNOWN_CODE, NULL, NULL, NULL}};", 2512 getLLVMStyleWithColumns(60)); 2513 verifyGoogleFormat("SomeType Status::global_reps[3] = {\n" 2514 " {kGlobalRef, OK_CODE, NULL, NULL, NULL},\n" 2515 " {kGlobalRef, CANCELLED_CODE, NULL, NULL, NULL},\n" 2516 " {kGlobalRef, UNKNOWN_CODE, NULL, NULL, NULL}};"); 2517 verifyFormat("CGRect cg_rect = {{rect.fLeft, rect.fTop},\n" 2518 " {rect.fRight - rect.fLeft, rect.fBottom - " 2519 "rect.fTop}};"); 2520 2521 verifyFormat( 2522 "SomeArrayOfSomeType a = {\n" 2523 " {{1, 2, 3},\n" 2524 " {1, 2, 3},\n" 2525 " {111111111111111111111111111111, 222222222222222222222222222222,\n" 2526 " 333333333333333333333333333333},\n" 2527 " {1, 2, 3},\n" 2528 " {1, 2, 3}}};"); 2529 verifyFormat( 2530 "SomeArrayOfSomeType a = {\n" 2531 " {{1, 2, 3}},\n" 2532 " {{1, 2, 3}},\n" 2533 " {{111111111111111111111111111111, 222222222222222222222222222222,\n" 2534 " 333333333333333333333333333333}},\n" 2535 " {{1, 2, 3}},\n" 2536 " {{1, 2, 3}}};"); 2537 2538 verifyFormat("struct {\n" 2539 " unsigned bit;\n" 2540 " const char *const name;\n" 2541 "} kBitsToOs[] = {{kOsMac, \"Mac\"},\n" 2542 " {kOsWin, \"Windows\"},\n" 2543 " {kOsLinux, \"Linux\"},\n" 2544 " {kOsCrOS, \"Chrome OS\"}};"); 2545 verifyFormat("struct {\n" 2546 " unsigned bit;\n" 2547 " const char *const name;\n" 2548 "} kBitsToOs[] = {\n" 2549 " {kOsMac, \"Mac\"},\n" 2550 " {kOsWin, \"Windows\"},\n" 2551 " {kOsLinux, \"Linux\"},\n" 2552 " {kOsCrOS, \"Chrome OS\"},\n" 2553 "};"); 2554 } 2555 2556 TEST_F(FormatTest, FormatsSmallMacroDefinitionsInSingleLine) { 2557 verifyFormat("#define ALooooooooooooooooooooooooooooooooooooooongMacro(" 2558 " \\\n" 2559 " aLoooooooooooooooooooooooongFuuuuuuuuuuuuuunctiooooooooo)"); 2560 } 2561 2562 TEST_F(FormatTest, DoesNotBreakPureVirtualFunctionDefinition) { 2563 verifyFormat("virtual void write(ELFWriter *writerrr,\n" 2564 " OwningPtr<FileOutputBuffer> &buffer) = 0;"); 2565 2566 // Do break defaulted and deleted functions. 2567 verifyFormat("virtual void ~Deeeeeeeestructor() =\n" 2568 " default;", 2569 getLLVMStyleWithColumns(40)); 2570 verifyFormat("virtual void ~Deeeeeeeestructor() =\n" 2571 " delete;", 2572 getLLVMStyleWithColumns(40)); 2573 } 2574 2575 TEST_F(FormatTest, BreaksStringLiteralsOnlyInDefine) { 2576 verifyFormat("# 1111 \"/aaaaaaaaa/aaaaaaaaaaaaaaaaaaa/aaaaaaaa.cpp\" 2 3", 2577 getLLVMStyleWithColumns(40)); 2578 verifyFormat("#line 11111 \"/aaaaaaaaa/aaaaaaaaaaaaaaaaaaa/aaaaaaaa.cpp\"", 2579 getLLVMStyleWithColumns(40)); 2580 EXPECT_EQ("#define Q \\\n" 2581 " \"/aaaaaaaaa/aaaaaaaaaaaaaaaaaaa/\" \\\n" 2582 " \"aaaaaaaa.cpp\"", 2583 format("#define Q \"/aaaaaaaaa/aaaaaaaaaaaaaaaaaaa/aaaaaaaa.cpp\"", 2584 getLLVMStyleWithColumns(40))); 2585 } 2586 2587 TEST_F(FormatTest, UnderstandsLinePPDirective) { 2588 EXPECT_EQ("# 123 \"A string literal\"", 2589 format(" # 123 \"A string literal\"")); 2590 } 2591 2592 TEST_F(FormatTest, LayoutUnknownPPDirective) { 2593 EXPECT_EQ("#;", format("#;")); 2594 verifyFormat("#\n;\n;\n;"); 2595 } 2596 2597 TEST_F(FormatTest, UnescapedEndOfLineEndsPPDirective) { 2598 EXPECT_EQ("#line 42 \"test\"\n", 2599 format("# \\\n line \\\n 42 \\\n \"test\"\n")); 2600 EXPECT_EQ("#define A B\n", format("# \\\n define \\\n A \\\n B\n", 2601 getLLVMStyleWithColumns(12))); 2602 } 2603 2604 TEST_F(FormatTest, EndOfFileEndsPPDirective) { 2605 EXPECT_EQ("#line 42 \"test\"", 2606 format("# \\\n line \\\n 42 \\\n \"test\"")); 2607 EXPECT_EQ("#define A B", format("# \\\n define \\\n A \\\n B")); 2608 } 2609 2610 TEST_F(FormatTest, DoesntRemoveUnknownTokens) { 2611 verifyFormat("#define A \\x20"); 2612 verifyFormat("#define A \\ x20"); 2613 EXPECT_EQ("#define A \\ x20", format("#define A \\ x20")); 2614 verifyFormat("#define A ''"); 2615 verifyFormat("#define A ''qqq"); 2616 verifyFormat("#define A `qqq"); 2617 verifyFormat("f(\"aaaa, bbbb, \"\\\"ccccc\\\"\");"); 2618 EXPECT_EQ("const char *c = STRINGIFY(\n" 2619 "\\na : b);", 2620 format("const char * c = STRINGIFY(\n" 2621 "\\na : b);")); 2622 2623 verifyFormat("a\r\\"); 2624 verifyFormat("a\v\\"); 2625 verifyFormat("a\f\\"); 2626 } 2627 2628 TEST_F(FormatTest, IndentsPPDirectiveInReducedSpace) { 2629 verifyFormat("#define A(BB)", getLLVMStyleWithColumns(13)); 2630 verifyFormat("#define A( \\\n BB)", getLLVMStyleWithColumns(12)); 2631 verifyFormat("#define A( \\\n A, B)", getLLVMStyleWithColumns(12)); 2632 // FIXME: We never break before the macro name. 2633 verifyFormat("#define AA( \\\n B)", getLLVMStyleWithColumns(12)); 2634 2635 verifyFormat("#define A A\n#define A A"); 2636 verifyFormat("#define A(X) A\n#define A A"); 2637 2638 verifyFormat("#define Something Other", getLLVMStyleWithColumns(23)); 2639 verifyFormat("#define Something \\\n Other", getLLVMStyleWithColumns(22)); 2640 } 2641 2642 TEST_F(FormatTest, HandlePreprocessorDirectiveContext) { 2643 EXPECT_EQ("// somecomment\n" 2644 "#include \"a.h\"\n" 2645 "#define A( \\\n" 2646 " A, B)\n" 2647 "#include \"b.h\"\n" 2648 "// somecomment\n", 2649 format(" // somecomment\n" 2650 " #include \"a.h\"\n" 2651 "#define A(A,\\\n" 2652 " B)\n" 2653 " #include \"b.h\"\n" 2654 " // somecomment\n", 2655 getLLVMStyleWithColumns(13))); 2656 } 2657 2658 TEST_F(FormatTest, LayoutSingleHash) { EXPECT_EQ("#\na;", format("#\na;")); } 2659 2660 TEST_F(FormatTest, LayoutCodeInMacroDefinitions) { 2661 EXPECT_EQ("#define A \\\n" 2662 " c; \\\n" 2663 " e;\n" 2664 "f;", 2665 format("#define A c; e;\n" 2666 "f;", 2667 getLLVMStyleWithColumns(14))); 2668 } 2669 2670 TEST_F(FormatTest, LayoutRemainingTokens) { EXPECT_EQ("{}", format("{}")); } 2671 2672 TEST_F(FormatTest, MacroDefinitionInsideStatement) { 2673 EXPECT_EQ("int x,\n" 2674 "#define A\n" 2675 " y;", 2676 format("int x,\n#define A\ny;")); 2677 } 2678 2679 TEST_F(FormatTest, HashInMacroDefinition) { 2680 EXPECT_EQ("#define A(c) L#c", format("#define A(c) L#c", getLLVMStyle())); 2681 verifyFormat("#define A \\\n b #c;", getLLVMStyleWithColumns(11)); 2682 verifyFormat("#define A \\\n" 2683 " { \\\n" 2684 " f(#c); \\\n" 2685 " }", 2686 getLLVMStyleWithColumns(11)); 2687 2688 verifyFormat("#define A(X) \\\n" 2689 " void function##X()", 2690 getLLVMStyleWithColumns(22)); 2691 2692 verifyFormat("#define A(a, b, c) \\\n" 2693 " void a##b##c()", 2694 getLLVMStyleWithColumns(22)); 2695 2696 verifyFormat("#define A void # ## #", getLLVMStyleWithColumns(22)); 2697 } 2698 2699 TEST_F(FormatTest, RespectWhitespaceInMacroDefinitions) { 2700 EXPECT_EQ("#define A (x)", format("#define A (x)")); 2701 EXPECT_EQ("#define A(x)", format("#define A(x)")); 2702 } 2703 2704 TEST_F(FormatTest, EmptyLinesInMacroDefinitions) { 2705 EXPECT_EQ("#define A b;", format("#define A \\\n" 2706 " \\\n" 2707 " b;", 2708 getLLVMStyleWithColumns(25))); 2709 EXPECT_EQ("#define A \\\n" 2710 " \\\n" 2711 " a; \\\n" 2712 " b;", 2713 format("#define A \\\n" 2714 " \\\n" 2715 " a; \\\n" 2716 " b;", 2717 getLLVMStyleWithColumns(11))); 2718 EXPECT_EQ("#define A \\\n" 2719 " a; \\\n" 2720 " \\\n" 2721 " b;", 2722 format("#define A \\\n" 2723 " a; \\\n" 2724 " \\\n" 2725 " b;", 2726 getLLVMStyleWithColumns(11))); 2727 } 2728 2729 TEST_F(FormatTest, MacroDefinitionsWithIncompleteCode) { 2730 verifyIncompleteFormat("#define A :"); 2731 verifyFormat("#define SOMECASES \\\n" 2732 " case 1: \\\n" 2733 " case 2\n", 2734 getLLVMStyleWithColumns(20)); 2735 verifyFormat("#define A template <typename T>"); 2736 verifyIncompleteFormat("#define STR(x) #x\n" 2737 "f(STR(this_is_a_string_literal{));"); 2738 verifyFormat("#pragma omp threadprivate( \\\n" 2739 " y)), // expected-warning", 2740 getLLVMStyleWithColumns(28)); 2741 verifyFormat("#d, = };"); 2742 verifyFormat("#if \"a"); 2743 verifyIncompleteFormat("({\n" 2744 "#define b \\\n" 2745 " } \\\n" 2746 " a\n" 2747 "a", 2748 getLLVMStyleWithColumns(15)); 2749 verifyFormat("#define A \\\n" 2750 " { \\\n" 2751 " {\n" 2752 "#define B \\\n" 2753 " } \\\n" 2754 " }", 2755 getLLVMStyleWithColumns(15)); 2756 verifyNoCrash("#if a\na(\n#else\n#endif\n{a"); 2757 verifyNoCrash("a={0,1\n#if a\n#else\n;\n#endif\n}"); 2758 verifyNoCrash("#if a\na(\n#else\n#endif\n) a {a,b,c,d,f,g};"); 2759 verifyNoCrash("#ifdef A\n a(\n #else\n #endif\n) = []() { \n)}"); 2760 } 2761 2762 TEST_F(FormatTest, MacrosWithoutTrailingSemicolon) { 2763 verifyFormat("SOME_TYPE_NAME abc;"); // Gated on the newline. 2764 EXPECT_EQ("class A : public QObject {\n" 2765 " Q_OBJECT\n" 2766 "\n" 2767 " A() {}\n" 2768 "};", 2769 format("class A : public QObject {\n" 2770 " Q_OBJECT\n" 2771 "\n" 2772 " A() {\n}\n" 2773 "} ;")); 2774 EXPECT_EQ("MACRO\n" 2775 "/*static*/ int i;", 2776 format("MACRO\n" 2777 " /*static*/ int i;")); 2778 EXPECT_EQ("SOME_MACRO\n" 2779 "namespace {\n" 2780 "void f();\n" 2781 "}", 2782 format("SOME_MACRO\n" 2783 " namespace {\n" 2784 "void f( );\n" 2785 "}")); 2786 // Only if the identifier contains at least 5 characters. 2787 EXPECT_EQ("HTTP f();", format("HTTP\nf();")); 2788 EXPECT_EQ("MACRO\nf();", format("MACRO\nf();")); 2789 // Only if everything is upper case. 2790 EXPECT_EQ("class A : public QObject {\n" 2791 " Q_Object A() {}\n" 2792 "};", 2793 format("class A : public QObject {\n" 2794 " Q_Object\n" 2795 " A() {\n}\n" 2796 "} ;")); 2797 2798 // Only if the next line can actually start an unwrapped line. 2799 EXPECT_EQ("SOME_WEIRD_LOG_MACRO << SomeThing;", 2800 format("SOME_WEIRD_LOG_MACRO\n" 2801 "<< SomeThing;")); 2802 2803 verifyFormat("VISIT_GL_CALL(GenBuffers, void, (GLsizei n, GLuint* buffers), " 2804 "(n, buffers))\n", 2805 getChromiumStyle(FormatStyle::LK_Cpp)); 2806 } 2807 2808 TEST_F(FormatTest, MacroCallsWithoutTrailingSemicolon) { 2809 EXPECT_EQ("INITIALIZE_PASS_BEGIN(ScopDetection, \"polly-detect\")\n" 2810 "INITIALIZE_AG_DEPENDENCY(AliasAnalysis)\n" 2811 "INITIALIZE_PASS_DEPENDENCY(DominatorTree)\n" 2812 "class X {};\n" 2813 "INITIALIZE_PASS_END(ScopDetection, \"polly-detect\")\n" 2814 "int *createScopDetectionPass() { return 0; }", 2815 format(" INITIALIZE_PASS_BEGIN(ScopDetection, \"polly-detect\")\n" 2816 " INITIALIZE_AG_DEPENDENCY(AliasAnalysis)\n" 2817 " INITIALIZE_PASS_DEPENDENCY(DominatorTree)\n" 2818 " class X {};\n" 2819 " INITIALIZE_PASS_END(ScopDetection, \"polly-detect\")\n" 2820 " int *createScopDetectionPass() { return 0; }")); 2821 // FIXME: We could probably treat IPC_BEGIN_MESSAGE_MAP/IPC_END_MESSAGE_MAP as 2822 // braces, so that inner block is indented one level more. 2823 EXPECT_EQ("int q() {\n" 2824 " IPC_BEGIN_MESSAGE_MAP(WebKitTestController, message)\n" 2825 " IPC_MESSAGE_HANDLER(xxx, qqq)\n" 2826 " IPC_END_MESSAGE_MAP()\n" 2827 "}", 2828 format("int q() {\n" 2829 " IPC_BEGIN_MESSAGE_MAP(WebKitTestController, message)\n" 2830 " IPC_MESSAGE_HANDLER(xxx, qqq)\n" 2831 " IPC_END_MESSAGE_MAP()\n" 2832 "}")); 2833 2834 // Same inside macros. 2835 EXPECT_EQ("#define LIST(L) \\\n" 2836 " L(A) \\\n" 2837 " L(B) \\\n" 2838 " L(C)", 2839 format("#define LIST(L) \\\n" 2840 " L(A) \\\n" 2841 " L(B) \\\n" 2842 " L(C)", 2843 getGoogleStyle())); 2844 2845 // These must not be recognized as macros. 2846 EXPECT_EQ("int q() {\n" 2847 " f(x);\n" 2848 " f(x) {}\n" 2849 " f(x)->g();\n" 2850 " f(x)->*g();\n" 2851 " f(x).g();\n" 2852 " f(x) = x;\n" 2853 " f(x) += x;\n" 2854 " f(x) -= x;\n" 2855 " f(x) *= x;\n" 2856 " f(x) /= x;\n" 2857 " f(x) %= x;\n" 2858 " f(x) &= x;\n" 2859 " f(x) |= x;\n" 2860 " f(x) ^= x;\n" 2861 " f(x) >>= x;\n" 2862 " f(x) <<= x;\n" 2863 " f(x)[y].z();\n" 2864 " LOG(INFO) << x;\n" 2865 " ifstream(x) >> x;\n" 2866 "}\n", 2867 format("int q() {\n" 2868 " f(x)\n;\n" 2869 " f(x)\n {}\n" 2870 " f(x)\n->g();\n" 2871 " f(x)\n->*g();\n" 2872 " f(x)\n.g();\n" 2873 " f(x)\n = x;\n" 2874 " f(x)\n += x;\n" 2875 " f(x)\n -= x;\n" 2876 " f(x)\n *= x;\n" 2877 " f(x)\n /= x;\n" 2878 " f(x)\n %= x;\n" 2879 " f(x)\n &= x;\n" 2880 " f(x)\n |= x;\n" 2881 " f(x)\n ^= x;\n" 2882 " f(x)\n >>= x;\n" 2883 " f(x)\n <<= x;\n" 2884 " f(x)\n[y].z();\n" 2885 " LOG(INFO)\n << x;\n" 2886 " ifstream(x)\n >> x;\n" 2887 "}\n")); 2888 EXPECT_EQ("int q() {\n" 2889 " F(x)\n" 2890 " if (1) {\n" 2891 " }\n" 2892 " F(x)\n" 2893 " while (1) {\n" 2894 " }\n" 2895 " F(x)\n" 2896 " G(x);\n" 2897 " F(x)\n" 2898 " try {\n" 2899 " Q();\n" 2900 " } catch (...) {\n" 2901 " }\n" 2902 "}\n", 2903 format("int q() {\n" 2904 "F(x)\n" 2905 "if (1) {}\n" 2906 "F(x)\n" 2907 "while (1) {}\n" 2908 "F(x)\n" 2909 "G(x);\n" 2910 "F(x)\n" 2911 "try { Q(); } catch (...) {}\n" 2912 "}\n")); 2913 EXPECT_EQ("class A {\n" 2914 " A() : t(0) {}\n" 2915 " A(int i) noexcept() : {}\n" 2916 " A(X x)\n" // FIXME: function-level try blocks are broken. 2917 " try : t(0) {\n" 2918 " } catch (...) {\n" 2919 " }\n" 2920 "};", 2921 format("class A {\n" 2922 " A()\n : t(0) {}\n" 2923 " A(int i)\n noexcept() : {}\n" 2924 " A(X x)\n" 2925 " try : t(0) {} catch (...) {}\n" 2926 "};")); 2927 EXPECT_EQ("class SomeClass {\n" 2928 "public:\n" 2929 " SomeClass() EXCLUSIVE_LOCK_FUNCTION(mu_);\n" 2930 "};", 2931 format("class SomeClass {\n" 2932 "public:\n" 2933 " SomeClass()\n" 2934 " EXCLUSIVE_LOCK_FUNCTION(mu_);\n" 2935 "};")); 2936 EXPECT_EQ("class SomeClass {\n" 2937 "public:\n" 2938 " SomeClass()\n" 2939 " EXCLUSIVE_LOCK_FUNCTION(mu_);\n" 2940 "};", 2941 format("class SomeClass {\n" 2942 "public:\n" 2943 " SomeClass()\n" 2944 " EXCLUSIVE_LOCK_FUNCTION(mu_);\n" 2945 "};", 2946 getLLVMStyleWithColumns(40))); 2947 2948 verifyFormat("MACRO(>)"); 2949 } 2950 2951 TEST_F(FormatTest, LayoutMacroDefinitionsStatementsSpanningBlocks) { 2952 verifyFormat("#define A \\\n" 2953 " f({ \\\n" 2954 " g(); \\\n" 2955 " });", 2956 getLLVMStyleWithColumns(11)); 2957 } 2958 2959 TEST_F(FormatTest, IndentPreprocessorDirectivesAtZero) { 2960 EXPECT_EQ("{\n {\n#define A\n }\n}", format("{{\n#define A\n}}")); 2961 } 2962 2963 TEST_F(FormatTest, FormatHashIfNotAtStartOfLine) { 2964 verifyFormat("{\n { a #c; }\n}"); 2965 } 2966 2967 TEST_F(FormatTest, FormatUnbalancedStructuralElements) { 2968 EXPECT_EQ("#define A \\\n { \\\n {\nint i;", 2969 format("#define A { {\nint i;", getLLVMStyleWithColumns(11))); 2970 EXPECT_EQ("#define A \\\n } \\\n }\nint i;", 2971 format("#define A } }\nint i;", getLLVMStyleWithColumns(11))); 2972 } 2973 2974 TEST_F(FormatTest, EscapedNewlines) { 2975 EXPECT_EQ( 2976 "#define A \\\n int i; \\\n int j;", 2977 format("#define A \\\nint i;\\\n int j;", getLLVMStyleWithColumns(11))); 2978 EXPECT_EQ("#define A\n\nint i;", format("#define A \\\n\n int i;")); 2979 EXPECT_EQ("template <class T> f();", format("\\\ntemplate <class T> f();")); 2980 EXPECT_EQ("/* \\ \\ \\\n*/", format("\\\n/* \\ \\ \\\n*/")); 2981 EXPECT_EQ("<a\n\\\\\n>", format("<a\n\\\\\n>")); 2982 } 2983 2984 TEST_F(FormatTest, DontCrashOnBlockComments) { 2985 EXPECT_EQ( 2986 "int xxxxxxxxx; /* " 2987 "yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy\n" 2988 "zzzzzz\n" 2989 "0*/", 2990 format("int xxxxxxxxx; /* " 2991 "yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy zzzzzz\n" 2992 "0*/")); 2993 } 2994 2995 TEST_F(FormatTest, CalculateSpaceOnConsecutiveLinesInMacro) { 2996 verifyFormat("#define A \\\n" 2997 " int v( \\\n" 2998 " a); \\\n" 2999 " int i;", 3000 getLLVMStyleWithColumns(11)); 3001 } 3002 3003 TEST_F(FormatTest, MixingPreprocessorDirectivesAndNormalCode) { 3004 EXPECT_EQ( 3005 "#define ALooooooooooooooooooooooooooooooooooooooongMacro(" 3006 " \\\n" 3007 " aLoooooooooooooooooooooooongFuuuuuuuuuuuuuunctiooooooooo)\n" 3008 "\n" 3009 "AlooooooooooooooooooooooooooooooooooooooongCaaaaaaaaaal(\n" 3010 " aLooooooooooooooooooooooonPaaaaaaaaaaaaaaaaaaaaarmmmm);\n", 3011 format(" #define ALooooooooooooooooooooooooooooooooooooooongMacro(" 3012 "\\\n" 3013 "aLoooooooooooooooooooooooongFuuuuuuuuuuuuuunctiooooooooo)\n" 3014 " \n" 3015 " AlooooooooooooooooooooooooooooooooooooooongCaaaaaaaaaal(\n" 3016 " aLooooooooooooooooooooooonPaaaaaaaaaaaaaaaaaaaaarmmmm);\n")); 3017 } 3018 3019 TEST_F(FormatTest, LayoutStatementsAroundPreprocessorDirectives) { 3020 EXPECT_EQ("int\n" 3021 "#define A\n" 3022 " a;", 3023 format("int\n#define A\na;")); 3024 verifyFormat("functionCallTo(\n" 3025 " someOtherFunction(\n" 3026 " withSomeParameters, whichInSequence,\n" 3027 " areLongerThanALine(andAnotherCall,\n" 3028 "#define A B\n" 3029 " withMoreParamters,\n" 3030 " whichStronglyInfluenceTheLayout),\n" 3031 " andMoreParameters),\n" 3032 " trailing);", 3033 getLLVMStyleWithColumns(69)); 3034 verifyFormat("Foo::Foo()\n" 3035 "#ifdef BAR\n" 3036 " : baz(0)\n" 3037 "#endif\n" 3038 "{\n" 3039 "}"); 3040 verifyFormat("void f() {\n" 3041 " if (true)\n" 3042 "#ifdef A\n" 3043 " f(42);\n" 3044 " x();\n" 3045 "#else\n" 3046 " g();\n" 3047 " x();\n" 3048 "#endif\n" 3049 "}"); 3050 verifyFormat("void f(param1, param2,\n" 3051 " param3,\n" 3052 "#ifdef A\n" 3053 " param4(param5,\n" 3054 "#ifdef A1\n" 3055 " param6,\n" 3056 "#ifdef A2\n" 3057 " param7),\n" 3058 "#else\n" 3059 " param8),\n" 3060 " param9,\n" 3061 "#endif\n" 3062 " param10,\n" 3063 "#endif\n" 3064 " param11)\n" 3065 "#else\n" 3066 " param12)\n" 3067 "#endif\n" 3068 "{\n" 3069 " x();\n" 3070 "}", 3071 getLLVMStyleWithColumns(28)); 3072 verifyFormat("#if 1\n" 3073 "int i;"); 3074 verifyFormat("#if 1\n" 3075 "#endif\n" 3076 "#if 1\n" 3077 "#else\n" 3078 "#endif\n"); 3079 verifyFormat("DEBUG({\n" 3080 " return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3081 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;\n" 3082 "});\n" 3083 "#if a\n" 3084 "#else\n" 3085 "#endif"); 3086 3087 verifyIncompleteFormat("void f(\n" 3088 "#if A\n" 3089 " );\n" 3090 "#else\n" 3091 "#endif"); 3092 } 3093 3094 TEST_F(FormatTest, GraciouslyHandleIncorrectPreprocessorConditions) { 3095 verifyFormat("#endif\n" 3096 "#if B"); 3097 } 3098 3099 TEST_F(FormatTest, FormatsJoinedLinesOnSubsequentRuns) { 3100 FormatStyle SingleLine = getLLVMStyle(); 3101 SingleLine.AllowShortIfStatementsOnASingleLine = true; 3102 verifyFormat("#if 0\n" 3103 "#elif 1\n" 3104 "#endif\n" 3105 "void foo() {\n" 3106 " if (test) foo2();\n" 3107 "}", 3108 SingleLine); 3109 } 3110 3111 TEST_F(FormatTest, LayoutBlockInsideParens) { 3112 verifyFormat("functionCall({ int i; });"); 3113 verifyFormat("functionCall({\n" 3114 " int i;\n" 3115 " int j;\n" 3116 "});"); 3117 verifyFormat("functionCall(\n" 3118 " {\n" 3119 " int i;\n" 3120 " int j;\n" 3121 " },\n" 3122 " aaaa, bbbb, cccc);"); 3123 verifyFormat("functionA(functionB({\n" 3124 " int i;\n" 3125 " int j;\n" 3126 " }),\n" 3127 " aaaa, bbbb, cccc);"); 3128 verifyFormat("functionCall(\n" 3129 " {\n" 3130 " int i;\n" 3131 " int j;\n" 3132 " },\n" 3133 " aaaa, bbbb, // comment\n" 3134 " cccc);"); 3135 verifyFormat("functionA(functionB({\n" 3136 " int i;\n" 3137 " int j;\n" 3138 " }),\n" 3139 " aaaa, bbbb, // comment\n" 3140 " cccc);"); 3141 verifyFormat("functionCall(aaaa, bbbb, { int i; });"); 3142 verifyFormat("functionCall(aaaa, bbbb, {\n" 3143 " int i;\n" 3144 " int j;\n" 3145 "});"); 3146 verifyFormat( 3147 "Aaa(\n" // FIXME: There shouldn't be a linebreak here. 3148 " {\n" 3149 " int i; // break\n" 3150 " },\n" 3151 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb,\n" 3152 " ccccccccccccccccc));"); 3153 verifyFormat("DEBUG({\n" 3154 " if (a)\n" 3155 " f();\n" 3156 "});"); 3157 } 3158 3159 TEST_F(FormatTest, LayoutBlockInsideStatement) { 3160 EXPECT_EQ("SOME_MACRO { int i; }\n" 3161 "int i;", 3162 format(" SOME_MACRO {int i;} int i;")); 3163 } 3164 3165 TEST_F(FormatTest, LayoutNestedBlocks) { 3166 verifyFormat("void AddOsStrings(unsigned bitmask) {\n" 3167 " struct s {\n" 3168 " int i;\n" 3169 " };\n" 3170 " s kBitsToOs[] = {{10}};\n" 3171 " for (int i = 0; i < 10; ++i)\n" 3172 " return;\n" 3173 "}"); 3174 verifyFormat("call(parameter, {\n" 3175 " something();\n" 3176 " // Comment using all columns.\n" 3177 " somethingelse();\n" 3178 "});", 3179 getLLVMStyleWithColumns(40)); 3180 verifyFormat("DEBUG( //\n" 3181 " { f(); }, a);"); 3182 verifyFormat("DEBUG( //\n" 3183 " {\n" 3184 " f(); //\n" 3185 " },\n" 3186 " a);"); 3187 3188 EXPECT_EQ("call(parameter, {\n" 3189 " something();\n" 3190 " // Comment too\n" 3191 " // looooooooooong.\n" 3192 " somethingElse();\n" 3193 "});", 3194 format("call(parameter, {\n" 3195 " something();\n" 3196 " // Comment too looooooooooong.\n" 3197 " somethingElse();\n" 3198 "});", 3199 getLLVMStyleWithColumns(29))); 3200 EXPECT_EQ("DEBUG({ int i; });", format("DEBUG({ int i; });")); 3201 EXPECT_EQ("DEBUG({ // comment\n" 3202 " int i;\n" 3203 "});", 3204 format("DEBUG({ // comment\n" 3205 "int i;\n" 3206 "});")); 3207 EXPECT_EQ("DEBUG({\n" 3208 " int i;\n" 3209 "\n" 3210 " // comment\n" 3211 " int j;\n" 3212 "});", 3213 format("DEBUG({\n" 3214 " int i;\n" 3215 "\n" 3216 " // comment\n" 3217 " int j;\n" 3218 "});")); 3219 3220 verifyFormat("DEBUG({\n" 3221 " if (a)\n" 3222 " return;\n" 3223 "});"); 3224 verifyGoogleFormat("DEBUG({\n" 3225 " if (a) return;\n" 3226 "});"); 3227 FormatStyle Style = getGoogleStyle(); 3228 Style.ColumnLimit = 45; 3229 verifyFormat("Debug(aaaaa,\n" 3230 " {\n" 3231 " if (aaaaaaaaaaaaaaaaaaaaaaaa) return;\n" 3232 " },\n" 3233 " a);", 3234 Style); 3235 3236 verifyFormat("SomeFunction({MACRO({ return output; }), b});"); 3237 3238 verifyNoCrash("^{v^{a}}"); 3239 } 3240 3241 TEST_F(FormatTest, FormatNestedBlocksInMacros) { 3242 EXPECT_EQ("#define MACRO() \\\n" 3243 " Debug(aaa, /* force line break */ \\\n" 3244 " { \\\n" 3245 " int i; \\\n" 3246 " int j; \\\n" 3247 " })", 3248 format("#define MACRO() Debug(aaa, /* force line break */ \\\n" 3249 " { int i; int j; })", 3250 getGoogleStyle())); 3251 3252 EXPECT_EQ("#define A \\\n" 3253 " [] { \\\n" 3254 " xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx( \\\n" 3255 " xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx); \\\n" 3256 " }", 3257 format("#define A [] { xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx( \\\n" 3258 "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx); }", 3259 getGoogleStyle())); 3260 } 3261 3262 TEST_F(FormatTest, PutEmptyBlocksIntoOneLine) { 3263 EXPECT_EQ("{}", format("{}")); 3264 verifyFormat("enum E {};"); 3265 verifyFormat("enum E {}"); 3266 } 3267 3268 TEST_F(FormatTest, FormatBeginBlockEndMacros) { 3269 FormatStyle Style = getLLVMStyle(); 3270 Style.MacroBlockBegin = "^[A-Z_]+_BEGIN$"; 3271 Style.MacroBlockEnd = "^[A-Z_]+_END$"; 3272 verifyFormat("FOO_BEGIN\n" 3273 " FOO_ENTRY\n" 3274 "FOO_END", Style); 3275 verifyFormat("FOO_BEGIN\n" 3276 " NESTED_FOO_BEGIN\n" 3277 " NESTED_FOO_ENTRY\n" 3278 " NESTED_FOO_END\n" 3279 "FOO_END", Style); 3280 verifyFormat("FOO_BEGIN(Foo, Bar)\n" 3281 " int x;\n" 3282 " x = 1;\n" 3283 "FOO_END(Baz)", Style); 3284 } 3285 3286 //===----------------------------------------------------------------------===// 3287 // Line break tests. 3288 //===----------------------------------------------------------------------===// 3289 3290 TEST_F(FormatTest, PreventConfusingIndents) { 3291 verifyFormat( 3292 "void f() {\n" 3293 " SomeLongMethodName(SomeReallyLongMethod(CallOtherReallyLongMethod(\n" 3294 " parameter, parameter, parameter)),\n" 3295 " SecondLongCall(parameter));\n" 3296 "}"); 3297 verifyFormat( 3298 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3299 " aaaaaaaaaaaaaaaaaaaaaaaa(\n" 3300 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 3301 " aaaaaaaaaaaaaaaaaaaaaaaa);"); 3302 verifyFormat( 3303 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3304 " [aaaaaaaaaaaaaaaaaaaaaaaa\n" 3305 " [aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa]\n" 3306 " [aaaaaaaaaaaaaaaaaaaaaaaa]];"); 3307 verifyFormat( 3308 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa<\n" 3309 " aaaaaaaaaaaaaaaaaaaaaaaa<\n" 3310 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>,\n" 3311 " aaaaaaaaaaaaaaaaaaaaaaaa>;"); 3312 verifyFormat("int a = bbbb && ccc && fffff(\n" 3313 "#define A Just forcing a new line\n" 3314 " ddd);"); 3315 } 3316 3317 TEST_F(FormatTest, LineBreakingInBinaryExpressions) { 3318 verifyFormat( 3319 "bool aaaaaaa =\n" 3320 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaa).aaaaaaaaaaaaaaaaaaa() ||\n" 3321 " bbbbbbbb();"); 3322 verifyFormat( 3323 "bool aaaaaaa =\n" 3324 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaa).aaaaaaaaaaaaaaaaaaa() or\n" 3325 " bbbbbbbb();"); 3326 3327 verifyFormat("bool aaaaaaaaaaaaaaaaaaaaa =\n" 3328 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa != bbbbbbbbbbbbbbbbbb &&\n" 3329 " ccccccccc == ddddddddddd;"); 3330 verifyFormat("bool aaaaaaaaaaaaaaaaaaaaa =\n" 3331 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa != bbbbbbbbbbbbbbbbbb and\n" 3332 " ccccccccc == ddddddddddd;"); 3333 verifyFormat( 3334 "bool aaaaaaaaaaaaaaaaaaaaa =\n" 3335 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa not_eq bbbbbbbbbbbbbbbbbb and\n" 3336 " ccccccccc == ddddddddddd;"); 3337 3338 verifyFormat("aaaaaa = aaaaaaa(aaaaaaa, // break\n" 3339 " aaaaaa) &&\n" 3340 " bbbbbb && cccccc;"); 3341 verifyFormat("aaaaaa = aaaaaaa(aaaaaaa, // break\n" 3342 " aaaaaa) >>\n" 3343 " bbbbbb;"); 3344 verifyFormat("Whitespaces.addUntouchableComment(\n" 3345 " SourceMgr.getSpellingColumnNumber(\n" 3346 " TheLine.Last->FormatTok.Tok.getLocation()) -\n" 3347 " 1);"); 3348 3349 verifyFormat("if ((aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 3350 " bbbbbbbbbbbbbbbbbb) && // aaaaaaaaaaaaaaaa\n" 3351 " cccccc) {\n}"); 3352 verifyFormat("b = a &&\n" 3353 " // Comment\n" 3354 " b.c && d;"); 3355 3356 // If the LHS of a comparison is not a binary expression itself, the 3357 // additional linebreak confuses many people. 3358 verifyFormat( 3359 "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3360 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) > 5) {\n" 3361 "}"); 3362 verifyFormat( 3363 "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3364 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) == 5) {\n" 3365 "}"); 3366 verifyFormat( 3367 "if (aaaaaaaaaaaaaaaaaaaaaaaaaa.aaaaaaaaaaaaaaaaaaaaaa(\n" 3368 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) == 5) {\n" 3369 "}"); 3370 // Even explicit parentheses stress the precedence enough to make the 3371 // additional break unnecessary. 3372 verifyFormat("if ((aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3373 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) == 5) {\n" 3374 "}"); 3375 // This cases is borderline, but with the indentation it is still readable. 3376 verifyFormat( 3377 "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3378 " aaaaaaaaaaaaaaa) > aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3379 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n" 3380 "}", 3381 getLLVMStyleWithColumns(75)); 3382 3383 // If the LHS is a binary expression, we should still use the additional break 3384 // as otherwise the formatting hides the operator precedence. 3385 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3386 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n" 3387 " 5) {\n" 3388 "}"); 3389 3390 FormatStyle OnePerLine = getLLVMStyle(); 3391 OnePerLine.BinPackParameters = false; 3392 verifyFormat( 3393 "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 3394 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 3395 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}", 3396 OnePerLine); 3397 } 3398 3399 TEST_F(FormatTest, ExpressionIndentation) { 3400 verifyFormat("bool value = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3401 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3402 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n" 3403 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n" 3404 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb +\n" 3405 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb &&\n" 3406 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n" 3407 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa >\n" 3408 " ccccccccccccccccccccccccccccccccccccccccc;"); 3409 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n" 3410 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3411 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n" 3412 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}"); 3413 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3414 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n" 3415 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n" 3416 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}"); 3417 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n" 3418 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n" 3419 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3420 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}"); 3421 verifyFormat("if () {\n" 3422 "} else if (aaaaa &&\n" 3423 " bbbbb > // break\n" 3424 " ccccc) {\n" 3425 "}"); 3426 3427 // Presence of a trailing comment used to change indentation of b. 3428 verifyFormat("return aaaaaaaaaaaaaaaaaaa +\n" 3429 " b;\n" 3430 "return aaaaaaaaaaaaaaaaaaa +\n" 3431 " b; //", 3432 getLLVMStyleWithColumns(30)); 3433 } 3434 3435 TEST_F(FormatTest, ExpressionIndentationBreakingBeforeOperators) { 3436 // Not sure what the best system is here. Like this, the LHS can be found 3437 // immediately above an operator (everything with the same or a higher 3438 // indent). The RHS is aligned right of the operator and so compasses 3439 // everything until something with the same indent as the operator is found. 3440 // FIXME: Is this a good system? 3441 FormatStyle Style = getLLVMStyle(); 3442 Style.BreakBeforeBinaryOperators = FormatStyle::BOS_All; 3443 verifyFormat( 3444 "bool value = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3445 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3446 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3447 " == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3448 " * bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3449 " + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3450 " && aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3451 " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3452 " > ccccccccccccccccccccccccccccccccccccccccc;", 3453 Style); 3454 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3455 " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3456 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3457 " == bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}", 3458 Style); 3459 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3460 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3461 " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3462 " == bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}", 3463 Style); 3464 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3465 " == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3466 " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3467 " + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}", 3468 Style); 3469 verifyFormat("if () {\n" 3470 "} else if (aaaaa\n" 3471 " && bbbbb // break\n" 3472 " > ccccc) {\n" 3473 "}", 3474 Style); 3475 verifyFormat("return (a)\n" 3476 " // comment\n" 3477 " + b;", 3478 Style); 3479 verifyFormat( 3480 "int aaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3481 " * bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3482 " + cc;", 3483 Style); 3484 3485 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3486 " = aaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaaaaa;", 3487 Style); 3488 3489 // Forced by comments. 3490 verifyFormat( 3491 "unsigned ContentSize =\n" 3492 " sizeof(int16_t) // DWARF ARange version number\n" 3493 " + sizeof(int32_t) // Offset of CU in the .debug_info section\n" 3494 " + sizeof(int8_t) // Pointer Size (in bytes)\n" 3495 " + sizeof(int8_t); // Segment Size (in bytes)"); 3496 3497 verifyFormat("return boost::fusion::at_c<0>(iiii).second\n" 3498 " == boost::fusion::at_c<1>(iiii).second;", 3499 Style); 3500 3501 Style.ColumnLimit = 60; 3502 verifyFormat("zzzzzzzzzz\n" 3503 " = bbbbbbbbbbbbbbbbb\n" 3504 " >> aaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaa);", 3505 Style); 3506 } 3507 3508 TEST_F(FormatTest, NoOperandAlignment) { 3509 FormatStyle Style = getLLVMStyle(); 3510 Style.AlignOperands = false; 3511 Style.BreakBeforeBinaryOperators = FormatStyle::BOS_NonAssignment; 3512 verifyFormat("bool value = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3513 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3514 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3515 " == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3516 " * bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3517 " + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3518 " && aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3519 " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3520 " > ccccccccccccccccccccccccccccccccccccccccc;", 3521 Style); 3522 3523 verifyFormat("int aaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3524 " * bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3525 " + cc;", 3526 Style); 3527 verifyFormat("int a = aa\n" 3528 " + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3529 " * cccccccccccccccccccccccccccccccccccc;", 3530 Style); 3531 3532 Style.AlignAfterOpenBracket = FormatStyle::BAS_DontAlign; 3533 verifyFormat("return (a > b\n" 3534 " // comment1\n" 3535 " // comment2\n" 3536 " || c);", 3537 Style); 3538 } 3539 3540 TEST_F(FormatTest, BreakingBeforeNonAssigmentOperators) { 3541 FormatStyle Style = getLLVMStyle(); 3542 Style.BreakBeforeBinaryOperators = FormatStyle::BOS_NonAssignment; 3543 verifyFormat("int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 3544 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3545 " + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;", 3546 Style); 3547 } 3548 3549 TEST_F(FormatTest, ConstructorInitializers) { 3550 verifyFormat("Constructor() : Initializer(FitsOnTheLine) {}"); 3551 verifyFormat("Constructor() : Inttializer(FitsOnTheLine) {}", 3552 getLLVMStyleWithColumns(45)); 3553 verifyFormat("Constructor()\n" 3554 " : Inttializer(FitsOnTheLine) {}", 3555 getLLVMStyleWithColumns(44)); 3556 verifyFormat("Constructor()\n" 3557 " : Inttializer(FitsOnTheLine) {}", 3558 getLLVMStyleWithColumns(43)); 3559 3560 verifyFormat("template <typename T>\n" 3561 "Constructor() : Initializer(FitsOnTheLine) {}", 3562 getLLVMStyleWithColumns(45)); 3563 3564 verifyFormat( 3565 "SomeClass::Constructor()\n" 3566 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaaaa(aaaaaaaaaaaa) {}"); 3567 3568 verifyFormat( 3569 "SomeClass::Constructor()\n" 3570 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 3571 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}"); 3572 verifyFormat( 3573 "SomeClass::Constructor()\n" 3574 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 3575 " aaaaaaaaaaaaaaa(aaaaaaaaaaaa) {}"); 3576 verifyFormat("Constructor(aaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3577 " aaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 3578 " : aaaaaaaaaa(aaaaaa) {}"); 3579 3580 verifyFormat("Constructor()\n" 3581 " : aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 3582 " aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3583 " aaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 3584 " aaaaaaaaaaaaaaaaaaaaaaa() {}"); 3585 3586 verifyFormat("Constructor()\n" 3587 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3588 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}"); 3589 3590 verifyFormat("Constructor(int Parameter = 0)\n" 3591 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaa),\n" 3592 " aaaaaaaaaaaa(aaaaaaaaaaaaaaaaa) {}"); 3593 verifyFormat("Constructor()\n" 3594 " : aaaaaaaaaaaaaaaaaaaa(a), bbbbbbbbbbbbbbbbbbbbbbbb(b) {\n" 3595 "}", 3596 getLLVMStyleWithColumns(60)); 3597 verifyFormat("Constructor()\n" 3598 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3599 " aaaaaaaaaaaaaaaaaaaaaaaaa(aaaa, aaaa)) {}"); 3600 3601 // Here a line could be saved by splitting the second initializer onto two 3602 // lines, but that is not desirable. 3603 verifyFormat("Constructor()\n" 3604 " : aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaa),\n" 3605 " aaaaaaaaaaa(aaaaaaaaaaa),\n" 3606 " aaaaaaaaaaaaaaaaaaaaat(aaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}"); 3607 3608 FormatStyle OnePerLine = getLLVMStyle(); 3609 OnePerLine.ConstructorInitializerAllOnOneLineOrOnePerLine = true; 3610 verifyFormat("SomeClass::Constructor()\n" 3611 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 3612 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 3613 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}", 3614 OnePerLine); 3615 verifyFormat("SomeClass::Constructor()\n" 3616 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), // Some comment\n" 3617 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 3618 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}", 3619 OnePerLine); 3620 verifyFormat("MyClass::MyClass(int var)\n" 3621 " : some_var_(var), // 4 space indent\n" 3622 " some_other_var_(var + 1) { // lined up\n" 3623 "}", 3624 OnePerLine); 3625 verifyFormat("Constructor()\n" 3626 " : aaaaa(aaaaaa),\n" 3627 " aaaaa(aaaaaa),\n" 3628 " aaaaa(aaaaaa),\n" 3629 " aaaaa(aaaaaa),\n" 3630 " aaaaa(aaaaaa) {}", 3631 OnePerLine); 3632 verifyFormat("Constructor()\n" 3633 " : aaaaa(aaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaa,\n" 3634 " aaaaaaaaaaaaaaaaaaaaaa) {}", 3635 OnePerLine); 3636 OnePerLine.ColumnLimit = 60; 3637 verifyFormat("Constructor()\n" 3638 " : aaaaaaaaaaaaaaaaaaaa(a),\n" 3639 " bbbbbbbbbbbbbbbbbbbbbbbb(b) {}", 3640 OnePerLine); 3641 3642 EXPECT_EQ("Constructor()\n" 3643 " : // Comment forcing unwanted break.\n" 3644 " aaaa(aaaa) {}", 3645 format("Constructor() :\n" 3646 " // Comment forcing unwanted break.\n" 3647 " aaaa(aaaa) {}")); 3648 } 3649 3650 TEST_F(FormatTest, MemoizationTests) { 3651 // This breaks if the memoization lookup does not take \c Indent and 3652 // \c LastSpace into account. 3653 verifyFormat( 3654 "extern CFRunLoopTimerRef\n" 3655 "CFRunLoopTimerCreate(CFAllocatorRef allocato, CFAbsoluteTime fireDate,\n" 3656 " CFTimeInterval interval, CFOptionFlags flags,\n" 3657 " CFIndex order, CFRunLoopTimerCallBack callout,\n" 3658 " CFRunLoopTimerContext *context) {}"); 3659 3660 // Deep nesting somewhat works around our memoization. 3661 verifyFormat( 3662 "aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(\n" 3663 " aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(\n" 3664 " aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(\n" 3665 " aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(\n" 3666 " aaaaa())))))))))))))))))))))))))))))))))))))));", 3667 getLLVMStyleWithColumns(65)); 3668 verifyFormat( 3669 "aaaaa(\n" 3670 " aaaaa,\n" 3671 " aaaaa(\n" 3672 " aaaaa,\n" 3673 " aaaaa(\n" 3674 " aaaaa,\n" 3675 " aaaaa(\n" 3676 " aaaaa,\n" 3677 " aaaaa(\n" 3678 " aaaaa,\n" 3679 " aaaaa(\n" 3680 " aaaaa,\n" 3681 " aaaaa(\n" 3682 " aaaaa,\n" 3683 " aaaaa(\n" 3684 " aaaaa,\n" 3685 " aaaaa(\n" 3686 " aaaaa,\n" 3687 " aaaaa(\n" 3688 " aaaaa,\n" 3689 " aaaaa(\n" 3690 " aaaaa,\n" 3691 " aaaaa(\n" 3692 " aaaaa,\n" 3693 " aaaaa))))))))))));", 3694 getLLVMStyleWithColumns(65)); 3695 verifyFormat( 3696 "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" 3697 " a),\n" 3698 " a),\n" 3699 " a),\n" 3700 " a),\n" 3701 " a),\n" 3702 " a),\n" 3703 " a),\n" 3704 " a),\n" 3705 " a),\n" 3706 " a),\n" 3707 " a),\n" 3708 " a),\n" 3709 " a),\n" 3710 " a),\n" 3711 " a),\n" 3712 " a),\n" 3713 " a)", 3714 getLLVMStyleWithColumns(65)); 3715 3716 // This test takes VERY long when memoization is broken. 3717 FormatStyle OnePerLine = getLLVMStyle(); 3718 OnePerLine.ConstructorInitializerAllOnOneLineOrOnePerLine = true; 3719 OnePerLine.BinPackParameters = false; 3720 std::string input = "Constructor()\n" 3721 " : aaaa(a,\n"; 3722 for (unsigned i = 0, e = 80; i != e; ++i) { 3723 input += " a,\n"; 3724 } 3725 input += " a) {}"; 3726 verifyFormat(input, OnePerLine); 3727 } 3728 3729 TEST_F(FormatTest, BreaksAsHighAsPossible) { 3730 verifyFormat( 3731 "void f() {\n" 3732 " if ((aaaaaaaaaaaaaaaaaaaaaaaaaaaaa && aaaaaaaaaaaaaaaaaaaaaaaaaa) ||\n" 3733 " (bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb && bbbbbbbbbbbbbbbbbbbbbbbbbb))\n" 3734 " f();\n" 3735 "}"); 3736 verifyFormat("if (Intervals[i].getRange().getFirst() <\n" 3737 " Intervals[i - 1].getRange().getLast()) {\n}"); 3738 } 3739 3740 TEST_F(FormatTest, BreaksFunctionDeclarations) { 3741 // Principially, we break function declarations in a certain order: 3742 // 1) break amongst arguments. 3743 verifyFormat("Aaaaaaaaaaaaaa bbbbbbbbbbbbbb(Cccccccccccccc cccccccccccccc,\n" 3744 " Cccccccccccccc cccccccccccccc);"); 3745 verifyFormat("template <class TemplateIt>\n" 3746 "SomeReturnType SomeFunction(TemplateIt begin, TemplateIt end,\n" 3747 " TemplateIt *stop) {}"); 3748 3749 // 2) break after return type. 3750 verifyFormat( 3751 "Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3752 "bbbbbbbbbbbbbb(Cccccccccccccc cccccccccccccccccccccccccc);", 3753 getGoogleStyle()); 3754 3755 // 3) break after (. 3756 verifyFormat( 3757 "Aaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbbbbbb(\n" 3758 " Cccccccccccccccccccccccccccccc cccccccccccccccccccccccccccccccc);", 3759 getGoogleStyle()); 3760 3761 // 4) break before after nested name specifiers. 3762 verifyFormat( 3763 "Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3764 "SomeClasssssssssssssssssssssssssssssssssssssss::\n" 3765 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(Cccccccccccccc cccccccccc);", 3766 getGoogleStyle()); 3767 3768 // However, there are exceptions, if a sufficient amount of lines can be 3769 // saved. 3770 // FIXME: The precise cut-offs wrt. the number of saved lines might need some 3771 // more adjusting. 3772 verifyFormat("Aaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbb(Cccccccccccccc cccccccccc,\n" 3773 " Cccccccccccccc cccccccccc,\n" 3774 " Cccccccccccccc cccccccccc,\n" 3775 " Cccccccccccccc cccccccccc,\n" 3776 " Cccccccccccccc cccccccccc);"); 3777 verifyFormat( 3778 "Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3779 "bbbbbbbbbbb(Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n" 3780 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n" 3781 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc);", 3782 getGoogleStyle()); 3783 verifyFormat( 3784 "Aaaaaaaaaa bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(Cccccccccccccc cccccccccc,\n" 3785 " Cccccccccccccc cccccccccc,\n" 3786 " Cccccccccccccc cccccccccc,\n" 3787 " Cccccccccccccc cccccccccc,\n" 3788 " Cccccccccccccc cccccccccc,\n" 3789 " Cccccccccccccc cccccccccc,\n" 3790 " Cccccccccccccc cccccccccc);"); 3791 verifyFormat("Aaaaaaaaaa bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(\n" 3792 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n" 3793 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n" 3794 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n" 3795 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc);"); 3796 3797 // Break after multi-line parameters. 3798 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3799 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3800 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3801 " bbbb bbbb);"); 3802 verifyFormat("void SomeLoooooooooooongFunction(\n" 3803 " std::unique_ptr<aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>\n" 3804 " aaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3805 " int bbbbbbbbbbbbb);"); 3806 3807 // Treat overloaded operators like other functions. 3808 verifyFormat("SomeLoooooooooooooooooooooooooogType\n" 3809 "operator>(const SomeLoooooooooooooooooooooooooogType &other);"); 3810 verifyFormat("SomeLoooooooooooooooooooooooooogType\n" 3811 "operator>>(const SomeLooooooooooooooooooooooooogType &other);"); 3812 verifyFormat("SomeLoooooooooooooooooooooooooogType\n" 3813 "operator<<(const SomeLooooooooooooooooooooooooogType &other);"); 3814 verifyGoogleFormat( 3815 "SomeLoooooooooooooooooooooooooooooogType operator>>(\n" 3816 " const SomeLooooooooogType &a, const SomeLooooooooogType &b);"); 3817 verifyGoogleFormat( 3818 "SomeLoooooooooooooooooooooooooooooogType operator<<(\n" 3819 " const SomeLooooooooogType &a, const SomeLooooooooogType &b);"); 3820 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3821 " int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa = 1);"); 3822 verifyFormat("aaaaaaaaaaaaaaaaaaaaaa\n" 3823 "aaaaaaaaaaaaaaaaaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaa = 1);"); 3824 verifyGoogleFormat( 3825 "typename aaaaaaaaaa<aaaaaa>::aaaaaaaaaaa\n" 3826 "aaaaaaaaaa<aaaaaa>::aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3827 " bool *aaaaaaaaaaaaaaaaaa, bool *aa) {}"); 3828 3829 FormatStyle Style = getLLVMStyle(); 3830 Style.PointerAlignment = FormatStyle::PAS_Left; 3831 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3832 " aaaaaaaaaaaaaaaaaaaaaaaaa* const aaaaaaaaaaaa) {}", 3833 Style); 3834 verifyFormat("void aaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa*\n" 3835 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}", 3836 Style); 3837 } 3838 3839 TEST_F(FormatTest, TrailingReturnType) { 3840 verifyFormat("auto foo() -> int;\n"); 3841 verifyFormat("struct S {\n" 3842 " auto bar() const -> int;\n" 3843 "};"); 3844 verifyFormat("template <size_t Order, typename T>\n" 3845 "auto load_img(const std::string &filename)\n" 3846 " -> alias::tensor<Order, T, mem::tag::cpu> {}"); 3847 verifyFormat("auto SomeFunction(A aaaaaaaaaaaaaaaaaaaaa) const\n" 3848 " -> decltype(f(aaaaaaaaaaaaaaaaaaaaa)) {}"); 3849 verifyFormat("auto doSomething(Aaaaaa *aaaaaa) -> decltype(aaaaaa->f()) {}"); 3850 verifyFormat("template <typename T>\n" 3851 "auto aaaaaaaaaaaaaaaaaaaaaa(T t)\n" 3852 " -> decltype(eaaaaaaaaaaaaaaa<T>(t.a).aaaaaaaa());"); 3853 3854 // Not trailing return types. 3855 verifyFormat("void f() { auto a = b->c(); }"); 3856 } 3857 3858 TEST_F(FormatTest, BreaksFunctionDeclarationsWithTrailingTokens) { 3859 // Avoid breaking before trailing 'const' or other trailing annotations, if 3860 // they are not function-like. 3861 FormatStyle Style = getGoogleStyle(); 3862 Style.ColumnLimit = 47; 3863 verifyFormat("void someLongFunction(\n" 3864 " int someLoooooooooooooongParameter) const {\n}", 3865 getLLVMStyleWithColumns(47)); 3866 verifyFormat("LoooooongReturnType\n" 3867 "someLoooooooongFunction() const {}", 3868 getLLVMStyleWithColumns(47)); 3869 verifyFormat("LoooooongReturnType someLoooooooongFunction()\n" 3870 " const {}", 3871 Style); 3872 verifyFormat("void SomeFunction(aaaaa aaaaaaaaaaaaaaaaaaaa,\n" 3873 " aaaaa aaaaaaaaaaaaaaaaaaaa) OVERRIDE;"); 3874 verifyFormat("void SomeFunction(aaaaa aaaaaaaaaaaaaaaaaaaa,\n" 3875 " aaaaa aaaaaaaaaaaaaaaaaaaa) OVERRIDE FINAL;"); 3876 verifyFormat("void SomeFunction(aaaaa aaaaaaaaaaaaaaaaaaaa,\n" 3877 " aaaaa aaaaaaaaaaaaaaaaaaaa) override final;"); 3878 verifyFormat("virtual void aaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaa aaaa,\n" 3879 " aaaaaaaaaaa aaaaa) const override;"); 3880 verifyGoogleFormat( 3881 "virtual void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 3882 " const override;"); 3883 3884 // Even if the first parameter has to be wrapped. 3885 verifyFormat("void someLongFunction(\n" 3886 " int someLongParameter) const {}", 3887 getLLVMStyleWithColumns(46)); 3888 verifyFormat("void someLongFunction(\n" 3889 " int someLongParameter) const {}", 3890 Style); 3891 verifyFormat("void someLongFunction(\n" 3892 " int someLongParameter) override {}", 3893 Style); 3894 verifyFormat("void someLongFunction(\n" 3895 " int someLongParameter) OVERRIDE {}", 3896 Style); 3897 verifyFormat("void someLongFunction(\n" 3898 " int someLongParameter) final {}", 3899 Style); 3900 verifyFormat("void someLongFunction(\n" 3901 " int someLongParameter) FINAL {}", 3902 Style); 3903 verifyFormat("void someLongFunction(\n" 3904 " int parameter) const override {}", 3905 Style); 3906 3907 Style.BreakBeforeBraces = FormatStyle::BS_Allman; 3908 verifyFormat("void someLongFunction(\n" 3909 " int someLongParameter) const\n" 3910 "{\n" 3911 "}", 3912 Style); 3913 3914 // Unless these are unknown annotations. 3915 verifyFormat("void SomeFunction(aaaaaaaaaa aaaaaaaaaaaaaaa,\n" 3916 " aaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 3917 " LONG_AND_UGLY_ANNOTATION;"); 3918 3919 // Breaking before function-like trailing annotations is fine to keep them 3920 // close to their arguments. 3921 verifyFormat("void aaaaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 3922 " LOCKS_EXCLUDED(aaaaaaaaaaaaa);"); 3923 verifyFormat("void aaaaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) const\n" 3924 " LOCKS_EXCLUDED(aaaaaaaaaaaaa);"); 3925 verifyFormat("void aaaaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) const\n" 3926 " LOCKS_EXCLUDED(aaaaaaaaaaaaa) {}"); 3927 verifyGoogleFormat("void aaaaaaaaaaaaaa(aaaaaaaa aaa) override\n" 3928 " AAAAAAAAAAAAAAAAAAAAAAAA(aaaaaaaaaaaaaaa);"); 3929 verifyFormat("SomeFunction([](int i) LOCKS_EXCLUDED(a) {});"); 3930 3931 verifyFormat( 3932 "void aaaaaaaaaaaaaaaaaa()\n" 3933 " __attribute__((aaaaaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaa,\n" 3934 " aaaaaaaaaaaaaaaaaaaaaaaaa));"); 3935 verifyFormat("bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3936 " __attribute__((unused));"); 3937 verifyGoogleFormat( 3938 "bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3939 " GUARDED_BY(aaaaaaaaaaaa);"); 3940 verifyGoogleFormat( 3941 "bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3942 " GUARDED_BY(aaaaaaaaaaaa);"); 3943 verifyGoogleFormat( 3944 "bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa GUARDED_BY(aaaaaaaaaaaa) =\n" 3945 " aaaaaaaa::aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 3946 verifyGoogleFormat( 3947 "bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa GUARDED_BY(aaaaaaaaaaaa) =\n" 3948 " aaaaaaaaaaaaaaaaaaaaaaaaa;"); 3949 } 3950 3951 TEST_F(FormatTest, FunctionAnnotations) { 3952 verifyFormat("DEPRECATED(\"Use NewClass::NewFunction instead.\")\n" 3953 "int OldFunction(const string ¶meter) {}"); 3954 verifyFormat("DEPRECATED(\"Use NewClass::NewFunction instead.\")\n" 3955 "string OldFunction(const string ¶meter) {}"); 3956 verifyFormat("template <typename T>\n" 3957 "DEPRECATED(\"Use NewClass::NewFunction instead.\")\n" 3958 "string OldFunction(const string ¶meter) {}"); 3959 3960 // Not function annotations. 3961 verifyFormat("ASSERT(\"aaaaa\") << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3962 " << bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"); 3963 verifyFormat("TEST_F(ThisIsATestFixtureeeeeeeeeeeee,\n" 3964 " ThisIsATestWithAReallyReallyReallyReallyLongName) {}"); 3965 } 3966 3967 TEST_F(FormatTest, BreaksDesireably) { 3968 verifyFormat("if (aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaa) ||\n" 3969 " aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaa) ||\n" 3970 " aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaa)) {\n}"); 3971 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3972 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)) {\n" 3973 "}"); 3974 3975 verifyFormat( 3976 "aaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3977 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}"); 3978 3979 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3980 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3981 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa));"); 3982 3983 verifyFormat( 3984 "aaaaaaaa(aaaaaaaaaaaaa, aaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3985 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)),\n" 3986 " aaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3987 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)));"); 3988 3989 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 3990 " (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 3991 3992 verifyFormat( 3993 "void f() {\n" 3994 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa &&\n" 3995 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);\n" 3996 "}"); 3997 verifyFormat( 3998 "aaaaaa(new Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3999 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaa));"); 4000 verifyFormat( 4001 "aaaaaa(aaa, new Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4002 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaa));"); 4003 verifyFormat("aaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4004 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4005 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4006 4007 // Indent consistently independent of call expression and unary operator. 4008 verifyFormat("aaaaaaaaaaa(bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(\n" 4009 " dddddddddddddddddddddddddddddd));"); 4010 verifyFormat("aaaaaaaaaaa(!bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(\n" 4011 " dddddddddddddddddddddddddddddd));"); 4012 verifyFormat("aaaaaaaaaaa(bbbbbbbbbbbbbbbbbbbbbbbbb.ccccccccccccccccc(\n" 4013 " dddddddddddddddddddddddddddddd));"); 4014 4015 // This test case breaks on an incorrect memoization, i.e. an optimization not 4016 // taking into account the StopAt value. 4017 verifyFormat( 4018 "return aaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaa ||\n" 4019 " aaaaaaaaaaa(aaaaaaaaa) || aaaaaaaaaaaaaaaaaaaaaaa ||\n" 4020 " aaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaa ||\n" 4021 " (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4022 4023 verifyFormat("{\n {\n {\n" 4024 " Annotation.SpaceRequiredBefore =\n" 4025 " Line.Tokens[i - 1].Tok.isNot(tok::l_paren) &&\n" 4026 " Line.Tokens[i - 1].Tok.isNot(tok::l_square);\n" 4027 " }\n }\n}"); 4028 4029 // Break on an outer level if there was a break on an inner level. 4030 EXPECT_EQ("f(g(h(a, // comment\n" 4031 " b, c),\n" 4032 " d, e),\n" 4033 " x, y);", 4034 format("f(g(h(a, // comment\n" 4035 " b, c), d, e), x, y);")); 4036 4037 // Prefer breaking similar line breaks. 4038 verifyFormat( 4039 "const int kTrackingOptions = NSTrackingMouseMoved |\n" 4040 " NSTrackingMouseEnteredAndExited |\n" 4041 " NSTrackingActiveAlways;"); 4042 } 4043 4044 TEST_F(FormatTest, FormatsDeclarationsOnePerLine) { 4045 FormatStyle NoBinPacking = getGoogleStyle(); 4046 NoBinPacking.BinPackParameters = false; 4047 NoBinPacking.BinPackArguments = true; 4048 verifyFormat("void f() {\n" 4049 " f(aaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaa,\n" 4050 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);\n" 4051 "}", 4052 NoBinPacking); 4053 verifyFormat("void f(int aaaaaaaaaaaaaaaaaaaa,\n" 4054 " int aaaaaaaaaaaaaaaaaaaa,\n" 4055 " int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}", 4056 NoBinPacking); 4057 } 4058 4059 TEST_F(FormatTest, FormatsOneParameterPerLineIfNecessary) { 4060 FormatStyle NoBinPacking = getGoogleStyle(); 4061 NoBinPacking.BinPackParameters = false; 4062 NoBinPacking.BinPackArguments = false; 4063 verifyFormat("f(aaaaaaaaaaaaaaaaaaaa,\n" 4064 " aaaaaaaaaaaaaaaaaaaa,\n" 4065 " aaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaa);", 4066 NoBinPacking); 4067 verifyFormat("aaaaaaa(aaaaaaaaaaaaa,\n" 4068 " aaaaaaaaaaaaa,\n" 4069 " aaaaaaaaaaaaa(aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaa));", 4070 NoBinPacking); 4071 verifyFormat( 4072 "aaaaaaaa(aaaaaaaaaaaaa,\n" 4073 " aaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4074 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)),\n" 4075 " aaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4076 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)));", 4077 NoBinPacking); 4078 verifyFormat("aaaaaaaaaaaaaaa(aaaaaaaaa, aaaaaaaaa, aaaaaaaaaaaaaaaaaaaaa)\n" 4079 " .aaaaaaaaaaaaaaaaaa();", 4080 NoBinPacking); 4081 verifyFormat("void f() {\n" 4082 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4083 " aaaaaaaaaa, aaaaaaaaaa, aaaaaaaaaa, aaaaaaaaaaa);\n" 4084 "}", 4085 NoBinPacking); 4086 4087 verifyFormat( 4088 "aaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4089 " aaaaaaaaaaaa,\n" 4090 " aaaaaaaaaaaa);", 4091 NoBinPacking); 4092 verifyFormat( 4093 "somefunction(someotherFunction(ddddddddddddddddddddddddddddddddddd,\n" 4094 " ddddddddddddddddddddddddddddd),\n" 4095 " test);", 4096 NoBinPacking); 4097 4098 verifyFormat("std::vector<aaaaaaaaaaaaaaaaaaaaaaa,\n" 4099 " aaaaaaaaaaaaaaaaaaaaaaa,\n" 4100 " aaaaaaaaaaaaaaaaaaaaaaa>\n" 4101 " aaaaaaaaaaaaaaaaaa;", 4102 NoBinPacking); 4103 verifyFormat("a(\"a\"\n" 4104 " \"a\",\n" 4105 " a);"); 4106 4107 NoBinPacking.AllowAllParametersOfDeclarationOnNextLine = false; 4108 verifyFormat("void aaaaaaaaaa(aaaaaaaaa,\n" 4109 " aaaaaaaaa,\n" 4110 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4111 NoBinPacking); 4112 verifyFormat( 4113 "void f() {\n" 4114 " aaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaa, aaaaaaaaa, aaaaaaaaaaaaaaaaaaaaa)\n" 4115 " .aaaaaaa();\n" 4116 "}", 4117 NoBinPacking); 4118 verifyFormat( 4119 "template <class SomeType, class SomeOtherType>\n" 4120 "SomeType SomeFunction(SomeType Type, SomeOtherType OtherType) {}", 4121 NoBinPacking); 4122 } 4123 4124 TEST_F(FormatTest, AdaptiveOnePerLineFormatting) { 4125 FormatStyle Style = getLLVMStyleWithColumns(15); 4126 Style.ExperimentalAutoDetectBinPacking = true; 4127 EXPECT_EQ("aaa(aaaa,\n" 4128 " aaaa,\n" 4129 " aaaa);\n" 4130 "aaa(aaaa,\n" 4131 " aaaa,\n" 4132 " aaaa);", 4133 format("aaa(aaaa,\n" // one-per-line 4134 " aaaa,\n" 4135 " aaaa );\n" 4136 "aaa(aaaa, aaaa, aaaa);", // inconclusive 4137 Style)); 4138 EXPECT_EQ("aaa(aaaa, aaaa,\n" 4139 " aaaa);\n" 4140 "aaa(aaaa, aaaa,\n" 4141 " aaaa);", 4142 format("aaa(aaaa, aaaa,\n" // bin-packed 4143 " aaaa );\n" 4144 "aaa(aaaa, aaaa, aaaa);", // inconclusive 4145 Style)); 4146 } 4147 4148 TEST_F(FormatTest, FormatsBuilderPattern) { 4149 verifyFormat("return llvm::StringSwitch<Reference::Kind>(name)\n" 4150 " .StartsWith(\".eh_frame_hdr\", ORDER_EH_FRAMEHDR)\n" 4151 " .StartsWith(\".eh_frame\", ORDER_EH_FRAME)\n" 4152 " .StartsWith(\".init\", ORDER_INIT)\n" 4153 " .StartsWith(\".fini\", ORDER_FINI)\n" 4154 " .StartsWith(\".hash\", ORDER_HASH)\n" 4155 " .Default(ORDER_TEXT);\n"); 4156 4157 verifyFormat("return aaaaaaaaaaaaaaaaa->aaaaa().aaaaaaaaaaaaa().aaaaaa() <\n" 4158 " aaaaaaaaaaaaaaa->aaaaa().aaaaaaaaaaaaa().aaaaaa();"); 4159 verifyFormat( 4160 "aaaaaaa->aaaaaaa->aaaaaaaaaaaaaaaa(\n" 4161 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4162 " ->aaaaaaaa(aaaaaaaaaaaaaaa);"); 4163 verifyFormat( 4164 "aaaaaaaaaaaaaaaaaaa()->aaaaaa(bbbbb)->aaaaaaaaaaaaaaaaaaa( // break\n" 4165 " aaaaaaaaaaaaaa);"); 4166 verifyFormat( 4167 "aaaaaaaaaaaaaaaaaaaaaaa *aaaaaaaaa =\n" 4168 " aaaaaa->aaaaaaaaaaaa()\n" 4169 " ->aaaaaaaaaaaaaaaa(\n" 4170 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4171 " ->aaaaaaaaaaaaaaaaa();"); 4172 verifyGoogleFormat( 4173 "void f() {\n" 4174 " someo->Add((new util::filetools::Handler(dir))\n" 4175 " ->OnEvent1(NewPermanentCallback(\n" 4176 " this, &HandlerHolderClass::EventHandlerCBA))\n" 4177 " ->OnEvent2(NewPermanentCallback(\n" 4178 " this, &HandlerHolderClass::EventHandlerCBB))\n" 4179 " ->OnEvent3(NewPermanentCallback(\n" 4180 " this, &HandlerHolderClass::EventHandlerCBC))\n" 4181 " ->OnEvent5(NewPermanentCallback(\n" 4182 " this, &HandlerHolderClass::EventHandlerCBD))\n" 4183 " ->OnEvent6(NewPermanentCallback(\n" 4184 " this, &HandlerHolderClass::EventHandlerCBE)));\n" 4185 "}"); 4186 4187 verifyFormat( 4188 "aaaaaaaaaaa().aaaaaaaaaaa().aaaaaaaaaaa().aaaaaaaaaaa().aaaaaaaaaaa();"); 4189 verifyFormat("aaaaaaaaaaaaaaa()\n" 4190 " .aaaaaaaaaaaaaaa()\n" 4191 " .aaaaaaaaaaaaaaa()\n" 4192 " .aaaaaaaaaaaaaaa()\n" 4193 " .aaaaaaaaaaaaaaa();"); 4194 verifyFormat("aaaaaaaaaaaaaaa.aaaaaaaaaaaaaaa()\n" 4195 " .aaaaaaaaaaaaaaa()\n" 4196 " .aaaaaaaaaaaaaaa()\n" 4197 " .aaaaaaaaaaaaaaa();"); 4198 verifyFormat("aaaaaaaaaaaaaaa.aaaaaaaaaaaaaaa()\n" 4199 " .aaaaaaaaaaaaaaa.aaaaaaaaaaaaaaa()\n" 4200 " .aaaaaaaaaaaaaaa();"); 4201 verifyFormat("aaaaaaaaaaaaa->aaaaaaaaaaaaaaaaaaaaaaaa()\n" 4202 " ->aaaaaaaaaaaaaae(0)\n" 4203 " ->aaaaaaaaaaaaaaa();"); 4204 4205 // Don't linewrap after very short segments. 4206 verifyFormat("a().aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4207 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4208 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 4209 verifyFormat("aa().aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4210 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4211 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 4212 verifyFormat("aaa()\n" 4213 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4214 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4215 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 4216 4217 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaa.aaaaaaaaaaaaa()\n" 4218 " .aaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4219 " .has<bbbbbbbbbbbbbbbbbbbbb>();"); 4220 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaa.aaaaaaaaaaaaa()\n" 4221 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa<\n" 4222 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>();"); 4223 4224 // Prefer not to break after empty parentheses. 4225 verifyFormat("FirstToken->WhitespaceRange.getBegin().getLocWithOffset(\n" 4226 " First->LastNewlineOffset);"); 4227 } 4228 4229 TEST_F(FormatTest, BreaksAccordingToOperatorPrecedence) { 4230 verifyFormat( 4231 "if (aaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 4232 " bbbbbbbbbbbbbbbbbbbbbbbbb && ccccccccccccccccccccccccc) {\n}"); 4233 verifyFormat( 4234 "if (aaaaaaaaaaaaaaaaaaaaaaaaa or\n" 4235 " bbbbbbbbbbbbbbbbbbbbbbbbb and cccccccccccccccccccccccc) {\n}"); 4236 4237 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaa && bbbbbbbbbbbbbbbbbbbbbbbbb ||\n" 4238 " ccccccccccccccccccccccccc) {\n}"); 4239 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaa and bbbbbbbbbbbbbbbbbbbbbbbb or\n" 4240 " ccccccccccccccccccccccccc) {\n}"); 4241 4242 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaa || bbbbbbbbbbbbbbbbbbbbbbbbb ||\n" 4243 " ccccccccccccccccccccccccc) {\n}"); 4244 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaa or bbbbbbbbbbbbbbbbbbbbbbbbb or\n" 4245 " ccccccccccccccccccccccccc) {\n}"); 4246 4247 verifyFormat( 4248 "if ((aaaaaaaaaaaaaaaaaaaaaaaaa || bbbbbbbbbbbbbbbbbbbbbbbbb) &&\n" 4249 " ccccccccccccccccccccccccc) {\n}"); 4250 verifyFormat( 4251 "if ((aaaaaaaaaaaaaaaaaaaaaaaaa or bbbbbbbbbbbbbbbbbbbbbbbbb) and\n" 4252 " ccccccccccccccccccccccccc) {\n}"); 4253 4254 verifyFormat("return aaaa & AAAAAAAAAAAAAAAAAAAAAAAAAAAAA ||\n" 4255 " bbbb & BBBBBBBBBBBBBBBBBBBBBBBBBBBBB ||\n" 4256 " cccc & CCCCCCCCCCCCCCCCCCCCCCCCCC ||\n" 4257 " dddd & DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD;"); 4258 verifyFormat("return aaaa & AAAAAAAAAAAAAAAAAAAAAAAAAAAAA or\n" 4259 " bbbb & BBBBBBBBBBBBBBBBBBBBBBBBBBBBB or\n" 4260 " cccc & CCCCCCCCCCCCCCCCCCCCCCCCCC or\n" 4261 " dddd & DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD;"); 4262 4263 verifyFormat("if ((aaaaaaaaaa != aaaaaaaaaaaaaaa ||\n" 4264 " aaaaaaaaaaaaaaaaaaaaaaaa() >= aaaaaaaaaaaaaaaaaaaa) &&\n" 4265 " aaaaaaaaaaaaaaa != aa) {\n}"); 4266 verifyFormat("if ((aaaaaaaaaa != aaaaaaaaaaaaaaa or\n" 4267 " aaaaaaaaaaaaaaaaaaaaaaaa() >= aaaaaaaaaaaaaaaaaaaa) and\n" 4268 " aaaaaaaaaaaaaaa != aa) {\n}"); 4269 } 4270 4271 TEST_F(FormatTest, BreaksAfterAssignments) { 4272 verifyFormat( 4273 "unsigned Cost =\n" 4274 " TTI.getMemoryOpCost(I->getOpcode(), VectorTy, SI->getAlignment(),\n" 4275 " SI->getPointerAddressSpaceee());\n"); 4276 verifyFormat( 4277 "CharSourceRange LineRange = CharSourceRange::getTokenRange(\n" 4278 " Line.Tokens.front().Tok.getLo(), Line.Tokens.back().Tok.getLoc());"); 4279 4280 verifyFormat( 4281 "aaaaaaaaaaaaaaaaaaaaaaaaaa aaaa = aaaaaaaaaaaaaa(0).aaaa().aaaaaaaaa(\n" 4282 " aaaaaaaaaaaaaaaaaaa::aaaaaaaaaaaaaaaaaaaaa);"); 4283 verifyFormat("unsigned OriginalStartColumn =\n" 4284 " SourceMgr.getSpellingColumnNumber(\n" 4285 " Current.FormatTok.getStartOfNonWhitespace()) -\n" 4286 " 1;"); 4287 } 4288 4289 TEST_F(FormatTest, AlignsAfterAssignments) { 4290 verifyFormat( 4291 "int Result = aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4292 " aaaaaaaaaaaaaaaaaaaaaaaaa;"); 4293 verifyFormat( 4294 "Result += aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4295 " aaaaaaaaaaaaaaaaaaaaaaaaa;"); 4296 verifyFormat( 4297 "Result >>= aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4298 " aaaaaaaaaaaaaaaaaaaaaaaaa;"); 4299 verifyFormat( 4300 "int Result = (aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4301 " aaaaaaaaaaaaaaaaaaaaaaaaa);"); 4302 verifyFormat( 4303 "double LooooooooooooooooooooooooongResult = aaaaaaaaaaaaaaaaaaaaaaaa +\n" 4304 " aaaaaaaaaaaaaaaaaaaaaaaa +\n" 4305 " aaaaaaaaaaaaaaaaaaaaaaaa;"); 4306 } 4307 4308 TEST_F(FormatTest, AlignsAfterReturn) { 4309 verifyFormat( 4310 "return aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4311 " aaaaaaaaaaaaaaaaaaaaaaaaa;"); 4312 verifyFormat( 4313 "return (aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4314 " aaaaaaaaaaaaaaaaaaaaaaaaa);"); 4315 verifyFormat( 4316 "return aaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa >=\n" 4317 " aaaaaaaaaaaaaaaaaaaaaa();"); 4318 verifyFormat( 4319 "return (aaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa >=\n" 4320 " aaaaaaaaaaaaaaaaaaaaaa());"); 4321 verifyFormat("return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4322 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4323 verifyFormat("return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4324 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) &&\n" 4325 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4326 verifyFormat("return\n" 4327 " // true if code is one of a or b.\n" 4328 " code == a || code == b;"); 4329 } 4330 4331 TEST_F(FormatTest, AlignsAfterOpenBracket) { 4332 verifyFormat( 4333 "void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaa aaaaaaaa,\n" 4334 " aaaaaaaaa aaaaaaa) {}"); 4335 verifyFormat( 4336 "SomeLongVariableName->someVeryLongFunctionName(aaaaaaaaaaa aaaaaaaaa,\n" 4337 " aaaaaaaaaaa aaaaaaaaa);"); 4338 verifyFormat( 4339 "SomeLongVariableName->someFunction(foooooooo(aaaaaaaaaaaaaaa,\n" 4340 " aaaaaaaaaaaaaaaaaaaaa));"); 4341 FormatStyle Style = getLLVMStyle(); 4342 Style.AlignAfterOpenBracket = FormatStyle::BAS_DontAlign; 4343 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4344 " aaaaaaaaaaa aaaaaaaa, aaaaaaaaa aaaaaaa) {}", 4345 Style); 4346 verifyFormat("SomeLongVariableName->someVeryLongFunctionName(\n" 4347 " aaaaaaaaaaa aaaaaaaaa, aaaaaaaaaaa aaaaaaaaa);", 4348 Style); 4349 verifyFormat("SomeLongVariableName->someFunction(\n" 4350 " foooooooo(aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaa));", 4351 Style); 4352 verifyFormat( 4353 "void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaa aaaaaaaa,\n" 4354 " aaaaaaaaa aaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}", 4355 Style); 4356 verifyFormat( 4357 "SomeLongVariableName->someVeryLongFunctionName(aaaaaaaaaaa aaaaaaaaa,\n" 4358 " aaaaaaaaaaa aaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4359 Style); 4360 verifyFormat( 4361 "SomeLongVariableName->someFunction(foooooooo(aaaaaaaaaaaaaaa,\n" 4362 " aaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa));", 4363 Style); 4364 } 4365 4366 TEST_F(FormatTest, ParenthesesAndOperandAlignment) { 4367 FormatStyle Style = getLLVMStyleWithColumns(40); 4368 verifyFormat("int a = f(aaaaaaaaaaaaaaaaaaaaaa &&\n" 4369 " bbbbbbbbbbbbbbbbbbbbbb);", 4370 Style); 4371 Style.AlignAfterOpenBracket = FormatStyle::BAS_Align; 4372 Style.AlignOperands = false; 4373 verifyFormat("int a = f(aaaaaaaaaaaaaaaaaaaaaa &&\n" 4374 " bbbbbbbbbbbbbbbbbbbbbb);", 4375 Style); 4376 Style.AlignAfterOpenBracket = FormatStyle::BAS_DontAlign; 4377 Style.AlignOperands = true; 4378 verifyFormat("int a = f(aaaaaaaaaaaaaaaaaaaaaa &&\n" 4379 " bbbbbbbbbbbbbbbbbbbbbb);", 4380 Style); 4381 Style.AlignAfterOpenBracket = FormatStyle::BAS_DontAlign; 4382 Style.AlignOperands = false; 4383 verifyFormat("int a = f(aaaaaaaaaaaaaaaaaaaaaa &&\n" 4384 " bbbbbbbbbbbbbbbbbbbbbb);", 4385 Style); 4386 } 4387 4388 TEST_F(FormatTest, BreaksConditionalExpressions) { 4389 verifyFormat( 4390 "aaaa(aaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4391 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4392 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4393 verifyFormat( 4394 "aaaa(aaaaaaaaaaaaaaaaaaaa, aaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4395 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4396 verifyFormat( 4397 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaa ? aaaa(aaaaaa)\n" 4398 " : aaaaaaaaaaaaa);"); 4399 verifyFormat( 4400 "aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4401 " aaaaaaaaaaaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4402 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4403 " aaaaaaaaaaaaa);"); 4404 verifyFormat( 4405 "aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4406 " aaaaaaaaaaaaaaaa ?: aaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4407 " aaaaaaaaaaaaa);"); 4408 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4409 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4410 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4411 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4412 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4413 verifyFormat("aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4414 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4415 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4416 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4417 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4418 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 4419 " aaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4420 verifyFormat("aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4421 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4422 " ?: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4423 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 4424 " aaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4425 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4426 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4427 " : aaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4428 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaa =\n" 4429 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4430 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4431 " : aaaaaaaaaaaaaaaa;"); 4432 verifyFormat( 4433 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4434 " ? aaaaaaaaaaaaaaa\n" 4435 " : aaaaaaaaaaaaaaa;"); 4436 verifyFormat("f(aaaaaaaaaaaaaaaa == // force break\n" 4437 " aaaaaaaaa\n" 4438 " ? b\n" 4439 " : c);"); 4440 verifyFormat("return aaaa == bbbb\n" 4441 " // comment\n" 4442 " ? aaaa\n" 4443 " : bbbb;"); 4444 verifyFormat("unsigned Indent =\n" 4445 " format(TheLine.First, IndentForLevel[TheLine.Level] >= 0\n" 4446 " ? IndentForLevel[TheLine.Level]\n" 4447 " : TheLine * 2,\n" 4448 " TheLine.InPPDirective, PreviousEndOfLineColumn);", 4449 getLLVMStyleWithColumns(70)); 4450 verifyFormat("bool aaaaaa = aaaaaaaaaaaaa //\n" 4451 " ? aaaaaaaaaaaaaaa\n" 4452 " : bbbbbbbbbbbbbbb //\n" 4453 " ? ccccccccccccccc\n" 4454 " : ddddddddddddddd;"); 4455 verifyFormat("bool aaaaaa = aaaaaaaaaaaaa //\n" 4456 " ? aaaaaaaaaaaaaaa\n" 4457 " : (bbbbbbbbbbbbbbb //\n" 4458 " ? ccccccccccccccc\n" 4459 " : ddddddddddddddd);"); 4460 verifyFormat( 4461 "int aaaaaaaaaaaaaaaaaaaaaaaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4462 " ? aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4463 " aaaaaaaaaaaaaaaaaaaaa +\n" 4464 " aaaaaaaaaaaaaaaaaaaaa\n" 4465 " : aaaaaaaaaa;"); 4466 verifyFormat( 4467 "aaaaaa = aaaaaaaaaaaa\n" 4468 " ? aaaaaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4469 " : aaaaaaaaaaaaaaaaaaaaaa\n" 4470 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4471 4472 FormatStyle NoBinPacking = getLLVMStyle(); 4473 NoBinPacking.BinPackArguments = false; 4474 verifyFormat( 4475 "void f() {\n" 4476 " g(aaa,\n" 4477 " aaaaaaaaaa == aaaaaaaaaa ? aaaa : aaaaa,\n" 4478 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4479 " ? aaaaaaaaaaaaaaa\n" 4480 " : aaaaaaaaaaaaaaa);\n" 4481 "}", 4482 NoBinPacking); 4483 verifyFormat( 4484 "void f() {\n" 4485 " g(aaa,\n" 4486 " aaaaaaaaaa == aaaaaaaaaa ? aaaa : aaaaa,\n" 4487 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4488 " ?: aaaaaaaaaaaaaaa);\n" 4489 "}", 4490 NoBinPacking); 4491 4492 verifyFormat("SomeFunction(aaaaaaaaaaaaaaaaa,\n" 4493 " // comment.\n" 4494 " ccccccccccccccccccccccccccccccccccccccc\n" 4495 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4496 " : bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb);"); 4497 4498 // Assignments in conditional expressions. Apparently not uncommon :-(. 4499 verifyFormat("return a != b\n" 4500 " // comment\n" 4501 " ? a = b\n" 4502 " : a = b;"); 4503 verifyFormat("return a != b\n" 4504 " // comment\n" 4505 " ? a = a != b\n" 4506 " // comment\n" 4507 " ? a = b\n" 4508 " : a\n" 4509 " : a;\n"); 4510 verifyFormat("return a != b\n" 4511 " // comment\n" 4512 " ? a\n" 4513 " : a = a != b\n" 4514 " // comment\n" 4515 " ? a = b\n" 4516 " : a;"); 4517 } 4518 4519 TEST_F(FormatTest, BreaksConditionalExpressionsAfterOperator) { 4520 FormatStyle Style = getLLVMStyle(); 4521 Style.BreakBeforeTernaryOperators = false; 4522 Style.ColumnLimit = 70; 4523 verifyFormat( 4524 "aaaa(aaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 4525 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 4526 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4527 Style); 4528 verifyFormat( 4529 "aaaa(aaaaaaaaaaaaaaaaaaaa, aaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 4530 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4531 Style); 4532 verifyFormat( 4533 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaa ? aaaa(aaaaaa) :\n" 4534 " aaaaaaaaaaaaa);", 4535 Style); 4536 verifyFormat( 4537 "aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4538 " aaaaaaaaaaaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 4539 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4540 " aaaaaaaaaaaaa);", 4541 Style); 4542 verifyFormat( 4543 "aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4544 " aaaaaaaaaaaaaaaa ?: aaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4545 " aaaaaaaaaaaaa);", 4546 Style); 4547 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 4548 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4549 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) :\n" 4550 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4551 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4552 Style); 4553 verifyFormat("aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4554 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 4555 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4556 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) :\n" 4557 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4558 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 4559 " aaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4560 Style); 4561 verifyFormat("aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4562 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?:\n" 4563 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4564 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 4565 " aaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4566 Style); 4567 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 4568 " aaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 4569 " aaaaaaaaaaaaaaaaaaaaaaaaaaa;", 4570 Style); 4571 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaa =\n" 4572 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 4573 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 4574 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;", 4575 Style); 4576 verifyFormat( 4577 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 4578 " aaaaaaaaaaaaaaa :\n" 4579 " aaaaaaaaaaaaaaa;", 4580 Style); 4581 verifyFormat("f(aaaaaaaaaaaaaaaa == // force break\n" 4582 " aaaaaaaaa ?\n" 4583 " b :\n" 4584 " c);", 4585 Style); 4586 verifyFormat( 4587 "unsigned Indent =\n" 4588 " format(TheLine.First, IndentForLevel[TheLine.Level] >= 0 ?\n" 4589 " IndentForLevel[TheLine.Level] :\n" 4590 " TheLine * 2,\n" 4591 " TheLine.InPPDirective, PreviousEndOfLineColumn);", 4592 Style); 4593 verifyFormat("bool aaaaaa = aaaaaaaaaaaaa ? //\n" 4594 " aaaaaaaaaaaaaaa :\n" 4595 " bbbbbbbbbbbbbbb ? //\n" 4596 " ccccccccccccccc :\n" 4597 " ddddddddddddddd;", 4598 Style); 4599 verifyFormat("bool aaaaaa = aaaaaaaaaaaaa ? //\n" 4600 " aaaaaaaaaaaaaaa :\n" 4601 " (bbbbbbbbbbbbbbb ? //\n" 4602 " ccccccccccccccc :\n" 4603 " ddddddddddddddd);", 4604 Style); 4605 } 4606 4607 TEST_F(FormatTest, DeclarationsOfMultipleVariables) { 4608 verifyFormat("bool aaaaaaaaaaaaaaaaa = aaaaaa->aaaaaaaaaaaaaaaaa(),\n" 4609 " aaaaaaaaaaa = aaaaaa->aaaaaaaaaaa();"); 4610 verifyFormat("bool a = true, b = false;"); 4611 4612 verifyFormat("bool aaaaaaaaaaaaaaaaaaaaaaaaa =\n" 4613 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaa),\n" 4614 " bbbbbbbbbbbbbbbbbbbbbbbbb =\n" 4615 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(bbbbbbbbbbbbbbbb);"); 4616 verifyFormat( 4617 "bool aaaaaaaaaaaaaaaaaaaaa =\n" 4618 " bbbbbbbbbbbbbbbbbbbbbbbbbbbb && cccccccccccccccccccccccccccc,\n" 4619 " d = e && f;"); 4620 verifyFormat("aaaaaaaaa a = aaaaaaaaaaaaaaaaaaaa, b = bbbbbbbbbbbbbbbbbbbb,\n" 4621 " c = cccccccccccccccccccc, d = dddddddddddddddddddd;"); 4622 verifyFormat("aaaaaaaaa *a = aaaaaaaaaaaaaaaaaaa, *b = bbbbbbbbbbbbbbbbbbb,\n" 4623 " *c = ccccccccccccccccccc, *d = ddddddddddddddddddd;"); 4624 verifyFormat("aaaaaaaaa ***a = aaaaaaaaaaaaaaaaaaa, ***b = bbbbbbbbbbbbbbb,\n" 4625 " ***c = ccccccccccccccccccc, ***d = ddddddddddddddd;"); 4626 4627 FormatStyle Style = getGoogleStyle(); 4628 Style.PointerAlignment = FormatStyle::PAS_Left; 4629 Style.DerivePointerAlignment = false; 4630 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4631 " *aaaaaaaaaaaaaaaaaaaaaaaaaaaaa = aaaaaaaaaaaaaaaaaaa,\n" 4632 " *b = bbbbbbbbbbbbbbbbbbb;", 4633 Style); 4634 verifyFormat("aaaaaaaaa *a = aaaaaaaaaaaaaaaaaaa, *b = bbbbbbbbbbbbbbbbbbb,\n" 4635 " *b = bbbbbbbbbbbbbbbbbbb, *d = ddddddddddddddddddd;", 4636 Style); 4637 } 4638 4639 TEST_F(FormatTest, ConditionalExpressionsInBrackets) { 4640 verifyFormat("arr[foo ? bar : baz];"); 4641 verifyFormat("f()[foo ? bar : baz];"); 4642 verifyFormat("(a + b)[foo ? bar : baz];"); 4643 verifyFormat("arr[foo ? (4 > 5 ? 4 : 5) : 5 < 5 ? 5 : 7];"); 4644 } 4645 4646 TEST_F(FormatTest, AlignsStringLiterals) { 4647 verifyFormat("loooooooooooooooooooooooooongFunction(\"short literal \"\n" 4648 " \"short literal\");"); 4649 verifyFormat( 4650 "looooooooooooooooooooooooongFunction(\n" 4651 " \"short literal\"\n" 4652 " \"looooooooooooooooooooooooooooooooooooooooooooooooong literal\");"); 4653 verifyFormat("someFunction(\"Always break between multi-line\"\n" 4654 " \" string literals\",\n" 4655 " and, other, parameters);"); 4656 EXPECT_EQ("fun + \"1243\" /* comment */\n" 4657 " \"5678\";", 4658 format("fun + \"1243\" /* comment */\n" 4659 " \"5678\";", 4660 getLLVMStyleWithColumns(28))); 4661 EXPECT_EQ( 4662 "aaaaaa = \"aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaa \"\n" 4663 " \"aaaaaaaaaaaaaaaaaaaaa\"\n" 4664 " \"aaaaaaaaaaaaaaaa\";", 4665 format("aaaaaa =" 4666 "\"aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaa " 4667 "aaaaaaaaaaaaaaaaaaaaa\" " 4668 "\"aaaaaaaaaaaaaaaa\";")); 4669 verifyFormat("a = a + \"a\"\n" 4670 " \"a\"\n" 4671 " \"a\";"); 4672 verifyFormat("f(\"a\", \"b\"\n" 4673 " \"c\");"); 4674 4675 verifyFormat( 4676 "#define LL_FORMAT \"ll\"\n" 4677 "printf(\"aaaaa: %d, bbbbbb: %\" LL_FORMAT \"d, cccccccc: %\" LL_FORMAT\n" 4678 " \"d, ddddddddd: %\" LL_FORMAT \"d\");"); 4679 4680 verifyFormat("#define A(X) \\\n" 4681 " \"aaaaa\" #X \"bbbbbb\" \\\n" 4682 " \"ccccc\"", 4683 getLLVMStyleWithColumns(23)); 4684 verifyFormat("#define A \"def\"\n" 4685 "f(\"abc\" A \"ghi\"\n" 4686 " \"jkl\");"); 4687 4688 verifyFormat("f(L\"a\"\n" 4689 " L\"b\");"); 4690 verifyFormat("#define A(X) \\\n" 4691 " L\"aaaaa\" #X L\"bbbbbb\" \\\n" 4692 " L\"ccccc\"", 4693 getLLVMStyleWithColumns(25)); 4694 4695 verifyFormat("f(@\"a\"\n" 4696 " @\"b\");"); 4697 verifyFormat("NSString s = @\"a\"\n" 4698 " @\"b\"\n" 4699 " @\"c\";"); 4700 verifyFormat("NSString s = @\"a\"\n" 4701 " \"b\"\n" 4702 " \"c\";"); 4703 } 4704 4705 TEST_F(FormatTest, DefinitionReturnTypeBreakingStyle) { 4706 FormatStyle Style = getLLVMStyle(); 4707 Style.AlwaysBreakAfterDefinitionReturnType = FormatStyle::DRTBS_TopLevel; 4708 verifyFormat("class C {\n" 4709 " int f() { return 1; }\n" 4710 "};\n" 4711 "int\n" 4712 "f() {\n" 4713 " return 1;\n" 4714 "}", 4715 Style); 4716 Style.AlwaysBreakAfterDefinitionReturnType = FormatStyle::DRTBS_All; 4717 verifyFormat("class C {\n" 4718 " int\n" 4719 " f() {\n" 4720 " return 1;\n" 4721 " }\n" 4722 "};\n" 4723 "int\n" 4724 "f() {\n" 4725 " return 1;\n" 4726 "}", 4727 Style); 4728 verifyFormat("const char *\n" 4729 "f(void) {\n" // Break here. 4730 " return \"\";\n" 4731 "}\n" 4732 "const char *bar(void);\n", // No break here. 4733 Style); 4734 verifyFormat("template <class T>\n" 4735 "T *\n" 4736 "f(T &c) {\n" // Break here. 4737 " return NULL;\n" 4738 "}\n" 4739 "template <class T> T *f(T &c);\n", // No break here. 4740 Style); 4741 verifyFormat("class C {\n" 4742 " int\n" 4743 " operator+() {\n" 4744 " return 1;\n" 4745 " }\n" 4746 " int\n" 4747 " operator()() {\n" 4748 " return 1;\n" 4749 " }\n" 4750 "};\n", 4751 Style); 4752 verifyFormat("void\n" 4753 "A::operator()() {}\n" 4754 "void\n" 4755 "A::operator>>() {}\n" 4756 "void\n" 4757 "A::operator+() {}\n", 4758 Style); 4759 verifyFormat("void *operator new(std::size_t s);", // No break here. 4760 Style); 4761 verifyFormat("void *\n" 4762 "operator new(std::size_t s) {}", 4763 Style); 4764 verifyFormat("void *\n" 4765 "operator delete[](void *ptr) {}", 4766 Style); 4767 Style.BreakBeforeBraces = FormatStyle::BS_Stroustrup; 4768 verifyFormat("const char *\n" 4769 "f(void)\n" // Break here. 4770 "{\n" 4771 " return \"\";\n" 4772 "}\n" 4773 "const char *bar(void);\n", // No break here. 4774 Style); 4775 verifyFormat("template <class T>\n" 4776 "T *\n" // Problem here: no line break 4777 "f(T &c)\n" // Break here. 4778 "{\n" 4779 " return NULL;\n" 4780 "}\n" 4781 "template <class T> T *f(T &c);\n", // No break here. 4782 Style); 4783 } 4784 4785 TEST_F(FormatTest, AlwaysBreakBeforeMultilineStrings) { 4786 FormatStyle NoBreak = getLLVMStyle(); 4787 NoBreak.AlwaysBreakBeforeMultilineStrings = false; 4788 FormatStyle Break = getLLVMStyle(); 4789 Break.AlwaysBreakBeforeMultilineStrings = true; 4790 verifyFormat("aaaa = \"bbbb\"\n" 4791 " \"cccc\";", 4792 NoBreak); 4793 verifyFormat("aaaa =\n" 4794 " \"bbbb\"\n" 4795 " \"cccc\";", 4796 Break); 4797 verifyFormat("aaaa(\"bbbb\"\n" 4798 " \"cccc\");", 4799 NoBreak); 4800 verifyFormat("aaaa(\n" 4801 " \"bbbb\"\n" 4802 " \"cccc\");", 4803 Break); 4804 verifyFormat("aaaa(qqq, \"bbbb\"\n" 4805 " \"cccc\");", 4806 NoBreak); 4807 verifyFormat("aaaa(qqq,\n" 4808 " \"bbbb\"\n" 4809 " \"cccc\");", 4810 Break); 4811 verifyFormat("aaaa(qqq,\n" 4812 " L\"bbbb\"\n" 4813 " L\"cccc\");", 4814 Break); 4815 verifyFormat("aaaaa(aaaaaa, aaaaaaa(\"aaaa\"\n" 4816 " \"bbbb\"));", 4817 Break); 4818 verifyFormat("string s = someFunction(\n" 4819 " \"abc\"\n" 4820 " \"abc\");", 4821 Break); 4822 4823 // As we break before unary operators, breaking right after them is bad. 4824 verifyFormat("string foo = abc ? \"x\"\n" 4825 " \"blah blah blah blah blah blah\"\n" 4826 " : \"y\";", 4827 Break); 4828 4829 // Don't break if there is no column gain. 4830 verifyFormat("f(\"aaaa\"\n" 4831 " \"bbbb\");", 4832 Break); 4833 4834 // Treat literals with escaped newlines like multi-line string literals. 4835 EXPECT_EQ("x = \"a\\\n" 4836 "b\\\n" 4837 "c\";", 4838 format("x = \"a\\\n" 4839 "b\\\n" 4840 "c\";", 4841 NoBreak)); 4842 EXPECT_EQ("xxxx =\n" 4843 " \"a\\\n" 4844 "b\\\n" 4845 "c\";", 4846 format("xxxx = \"a\\\n" 4847 "b\\\n" 4848 "c\";", 4849 Break)); 4850 4851 // Exempt ObjC strings for now. 4852 EXPECT_EQ("NSString *const kString = @\"aaaa\"\n" 4853 " @\"bbbb\";", 4854 format("NSString *const kString = @\"aaaa\"\n" 4855 "@\"bbbb\";", 4856 Break)); 4857 4858 Break.ColumnLimit = 0; 4859 verifyFormat("const char *hello = \"hello llvm\";", Break); 4860 } 4861 4862 TEST_F(FormatTest, AlignsPipes) { 4863 verifyFormat( 4864 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4865 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4866 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4867 verifyFormat( 4868 "aaaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaa\n" 4869 " << aaaaaaaaaaaaaaaaaaaa;"); 4870 verifyFormat( 4871 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4872 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4873 verifyFormat( 4874 "llvm::outs() << \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"\n" 4875 " \"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\"\n" 4876 " << \"ccccccccccccccccccccccccccccccccccccccccccccccccc\";"); 4877 verifyFormat( 4878 "aaaaaaaa << (aaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4879 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4880 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4881 verifyFormat("llvm::errs() << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4882 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4883 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4884 " << bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;"); 4885 verifyFormat("llvm::errs() << \"aaaaaaaaaaaaaaaaaaaaaaa: \"\n" 4886 " << aaaaaaaaaaaaaaaaa(aaaaaaaa, aaaaaaaaaaa);"); 4887 verifyFormat( 4888 "llvm::errs() << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4889 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4890 4891 verifyFormat("return out << \"somepacket = {\\n\"\n" 4892 " << \" aaaaaa = \" << pkt.aaaaaa << \"\\n\"\n" 4893 " << \" bbbb = \" << pkt.bbbb << \"\\n\"\n" 4894 " << \" cccccc = \" << pkt.cccccc << \"\\n\"\n" 4895 " << \" ddd = [\" << pkt.ddd << \"]\\n\"\n" 4896 " << \"}\";"); 4897 4898 verifyFormat("llvm::outs() << \"aaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaa\n" 4899 " << \"aaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaa\n" 4900 " << \"aaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaa;"); 4901 verifyFormat( 4902 "llvm::outs() << \"aaaaaaaaaaaaaaaaa = \" << aaaaaaaaaaaaaaaaa\n" 4903 " << \"bbbbbbbbbbbbbbbbb = \" << bbbbbbbbbbbbbbbbb\n" 4904 " << \"ccccccccccccccccc = \" << ccccccccccccccccc\n" 4905 " << \"ddddddddddddddddd = \" << ddddddddddddddddd\n" 4906 " << \"eeeeeeeeeeeeeeeee = \" << eeeeeeeeeeeeeeeee;"); 4907 verifyFormat("llvm::outs() << aaaaaaaaaaaaaaaaaaaaaaaa << \"=\"\n" 4908 " << bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;"); 4909 verifyFormat( 4910 "void f() {\n" 4911 " llvm::outs() << \"aaaaaaaaaaaaaaaaaaaa: \"\n" 4912 " << aaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaa);\n" 4913 "}"); 4914 verifyFormat("llvm::outs() << \"aaaaaaaaaaaaaaaa: \"\n" 4915 " << aaaaaaaa.aaaaaaaaaaaa(aaa)->aaaaaaaaaaaaaa();"); 4916 verifyFormat("llvm::errs() << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4917 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4918 " aaaaaaaaaaaaaaaaaaaaa)\n" 4919 " << aaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4920 verifyFormat("LOG_IF(aaa == //\n" 4921 " bbb)\n" 4922 " << a << b;"); 4923 4924 // Breaking before the first "<<" is generally not desirable. 4925 verifyFormat( 4926 "llvm::errs()\n" 4927 " << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4928 " << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4929 " << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4930 " << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa;", 4931 getLLVMStyleWithColumns(70)); 4932 verifyFormat("llvm::errs() << \"aaaaaaaaaaaaaaaaaaa: \"\n" 4933 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4934 " << \"aaaaaaaaaaaaaaaaaaa: \"\n" 4935 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4936 " << \"aaaaaaaaaaaaaaaaaaa: \"\n" 4937 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaa;", 4938 getLLVMStyleWithColumns(70)); 4939 4940 // But sometimes, breaking before the first "<<" is desirable. 4941 verifyFormat("Diag(aaaaaaaaaaaaaaaaaaaa, aaaaaaaa)\n" 4942 " << aaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaa);"); 4943 verifyFormat("Diag(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbb)\n" 4944 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4945 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4946 verifyFormat("SemaRef.Diag(Loc, diag::note_for_range_begin_end)\n" 4947 " << BEF << IsTemplate << Description << E->getType();"); 4948 4949 verifyFormat( 4950 "llvm::errs() << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4951 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 4952 4953 // Incomplete string literal. 4954 EXPECT_EQ("llvm::errs() << \"\n" 4955 " << a;", 4956 format("llvm::errs() << \"\n<<a;")); 4957 4958 verifyFormat("void f() {\n" 4959 " CHECK_EQ(aaaa, (*bbbbbbbbb)->cccccc)\n" 4960 " << \"qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq\";\n" 4961 "}"); 4962 4963 // Handle 'endl'. 4964 verifyFormat("llvm::errs() << aaaaaaaaaaaaaaaaaaaaaa << endl\n" 4965 " << bbbbbbbbbbbbbbbbbbbbbb << endl;"); 4966 verifyFormat("llvm::errs() << endl << bbbbbbbbbbbbbbbbbbbbbb << endl;"); 4967 } 4968 4969 TEST_F(FormatTest, UnderstandsEquals) { 4970 verifyFormat( 4971 "aaaaaaaaaaaaaaaaa =\n" 4972 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4973 verifyFormat( 4974 "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 4975 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}"); 4976 verifyFormat( 4977 "if (a) {\n" 4978 " f();\n" 4979 "} else if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 4980 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n" 4981 "}"); 4982 4983 verifyFormat("if (int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 4984 " 100000000 + 10000000) {\n}"); 4985 } 4986 4987 TEST_F(FormatTest, WrapsAtFunctionCallsIfNecessary) { 4988 verifyFormat("LoooooooooooooooooooooooooooooooooooooongObject\n" 4989 " .looooooooooooooooooooooooooooooooooooooongFunction();"); 4990 4991 verifyFormat("LoooooooooooooooooooooooooooooooooooooongObject\n" 4992 " ->looooooooooooooooooooooooooooooooooooooongFunction();"); 4993 4994 verifyFormat( 4995 "LooooooooooooooooooooooooooooooooongObject->shortFunction(Parameter1,\n" 4996 " Parameter2);"); 4997 4998 verifyFormat( 4999 "ShortObject->shortFunction(\n" 5000 " LooooooooooooooooooooooooooooooooooooooooooooooongParameter1,\n" 5001 " LooooooooooooooooooooooooooooooooooooooooooooooongParameter2);"); 5002 5003 verifyFormat("loooooooooooooongFunction(\n" 5004 " LoooooooooooooongObject->looooooooooooooooongFunction());"); 5005 5006 verifyFormat( 5007 "function(LoooooooooooooooooooooooooooooooooooongObject\n" 5008 " ->loooooooooooooooooooooooooooooooooooooooongFunction());"); 5009 5010 verifyFormat("EXPECT_CALL(SomeObject, SomeFunction(Parameter))\n" 5011 " .WillRepeatedly(Return(SomeValue));"); 5012 verifyFormat("void f() {\n" 5013 " EXPECT_CALL(SomeObject, SomeFunction(Parameter))\n" 5014 " .Times(2)\n" 5015 " .WillRepeatedly(Return(SomeValue));\n" 5016 "}"); 5017 verifyFormat("SomeMap[std::pair(aaaaaaaaaaaa, bbbbbbbbbbbbbbb)].insert(\n" 5018 " ccccccccccccccccccccccc);"); 5019 verifyFormat("aaaaa(aaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5020 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 5021 " .aaaaa(aaaaa),\n" 5022 " aaaaaaaaaaaaaaaaaaaaa);"); 5023 verifyFormat("void f() {\n" 5024 " aaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5025 " aaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa)->aaaaaaaaa());\n" 5026 "}"); 5027 verifyFormat("aaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5028 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 5029 " .aaaaaaaaaaaaaaa(aa(aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5030 " aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5031 " aaaaaaaaaaaaaaaaaaaaaaaaaaa));"); 5032 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5033 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5034 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5035 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()) {\n" 5036 "}"); 5037 5038 // Here, it is not necessary to wrap at "." or "->". 5039 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaa) ||\n" 5040 " aaaa.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}"); 5041 verifyFormat( 5042 "aaaaaaaaaaa->aaaaaaaaa(\n" 5043 " aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5044 " aaaaaaaaaaaaaaaaaa->aaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa));\n"); 5045 5046 verifyFormat( 5047 "aaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5048 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa().aaaaaaaaaaaaaaaaa());"); 5049 verifyFormat("a->aaaaaa()->aaaaaaaaaaa(aaaaaaaa()->aaaaaa()->aaaaa() *\n" 5050 " aaaaaaaaa()->aaaaaa()->aaaaa());"); 5051 verifyFormat("a->aaaaaa()->aaaaaaaaaaa(aaaaaaaa()->aaaaaa()->aaaaa() ||\n" 5052 " aaaaaaaaa()->aaaaaa()->aaaaa());"); 5053 5054 verifyFormat("aaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5055 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 5056 " .a();"); 5057 5058 FormatStyle NoBinPacking = getLLVMStyle(); 5059 NoBinPacking.BinPackParameters = false; 5060 verifyFormat("aaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaa)\n" 5061 " .aaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaa)\n" 5062 " .aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaa,\n" 5063 " aaaaaaaaaaaaaaaaaaa,\n" 5064 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 5065 NoBinPacking); 5066 5067 // If there is a subsequent call, change to hanging indentation. 5068 verifyFormat( 5069 "aaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5070 " aaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa))\n" 5071 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 5072 verifyFormat( 5073 "aaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5074 " aaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa));"); 5075 verifyFormat("aaaaaaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5076 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 5077 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 5078 verifyFormat("aaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5079 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 5080 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa());"); 5081 } 5082 5083 TEST_F(FormatTest, WrapsTemplateDeclarations) { 5084 verifyFormat("template <typename T>\n" 5085 "virtual void loooooooooooongFunction(int Param1, int Param2);"); 5086 verifyFormat("template <typename T>\n" 5087 "// T should be one of {A, B}.\n" 5088 "virtual void loooooooooooongFunction(int Param1, int Param2);"); 5089 verifyFormat( 5090 "template <typename T>\n" 5091 "using comment_to_xml_conversion = comment_to_xml_conversion<T, int>;"); 5092 verifyFormat("template <typename T>\n" 5093 "void f(int Paaaaaaaaaaaaaaaaaaaaaaaaaaaaaaram1,\n" 5094 " int Paaaaaaaaaaaaaaaaaaaaaaaaaaaaaaram2);"); 5095 verifyFormat( 5096 "template <typename T>\n" 5097 "void looooooooooooooooooooongFunction(int Paaaaaaaaaaaaaaaaaaaaram1,\n" 5098 " int Paaaaaaaaaaaaaaaaaaaaram2);"); 5099 verifyFormat( 5100 "template <typename T>\n" 5101 "aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaa,\n" 5102 " aaaaaaaaaaaaaaaaaaaaaaaaaa<T>::aaaaaaaaaa,\n" 5103 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 5104 verifyFormat("template <typename T>\n" 5105 "void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5106 " int aaaaaaaaaaaaaaaaaaaaaa);"); 5107 verifyFormat( 5108 "template <typename T1, typename T2 = char, typename T3 = char,\n" 5109 " typename T4 = char>\n" 5110 "void f();"); 5111 verifyFormat("template <typename aaaaaaaaaaa, typename bbbbbbbbbbbbb,\n" 5112 " template <typename> class cccccccccccccccccccccc,\n" 5113 " typename ddddddddddddd>\n" 5114 "class C {};"); 5115 verifyFormat( 5116 "aaaaaaaaaaaaaaaaaaaaaaaa<aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa>(\n" 5117 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 5118 5119 verifyFormat("void f() {\n" 5120 " a<aaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaa>(\n" 5121 " a(aaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaa));\n" 5122 "}"); 5123 5124 verifyFormat("template <typename T> class C {};"); 5125 verifyFormat("template <typename T> void f();"); 5126 verifyFormat("template <typename T> void f() {}"); 5127 verifyFormat( 5128 "aaaaaaaaaaaaa<aaaaaaaaaa, aaaaaaaaaaa,\n" 5129 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5130 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa> *aaaa =\n" 5131 " new aaaaaaaaaaaaa<aaaaaaaaaa, aaaaaaaaaaa,\n" 5132 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5133 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>(\n" 5134 " bbbbbbbbbbbbbbbbbbbbbbbb);", 5135 getLLVMStyleWithColumns(72)); 5136 EXPECT_EQ("static_cast<A< //\n" 5137 " B> *>(\n" 5138 "\n" 5139 " );", 5140 format("static_cast<A<//\n" 5141 " B>*>(\n" 5142 "\n" 5143 " );")); 5144 verifyFormat("int aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5145 " const typename aaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaa);"); 5146 5147 FormatStyle AlwaysBreak = getLLVMStyle(); 5148 AlwaysBreak.AlwaysBreakTemplateDeclarations = true; 5149 verifyFormat("template <typename T>\nclass C {};", AlwaysBreak); 5150 verifyFormat("template <typename T>\nvoid f();", AlwaysBreak); 5151 verifyFormat("template <typename T>\nvoid f() {}", AlwaysBreak); 5152 verifyFormat("void aaaaaaaaaaaaaaaaaaa<aaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5153 " bbbbbbbbbbbbbbbbbbbbbbbbbbbb>(\n" 5154 " ccccccccccccccccccccccccccccccccccccccccccccccc);"); 5155 verifyFormat("template <template <typename> class Fooooooo,\n" 5156 " template <typename> class Baaaaaaar>\n" 5157 "struct C {};", 5158 AlwaysBreak); 5159 verifyFormat("template <typename T> // T can be A, B or C.\n" 5160 "struct C {};", 5161 AlwaysBreak); 5162 } 5163 5164 TEST_F(FormatTest, WrapsAtNestedNameSpecifiers) { 5165 verifyFormat( 5166 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 5167 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 5168 verifyFormat( 5169 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 5170 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5171 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa());"); 5172 5173 // FIXME: Should we have the extra indent after the second break? 5174 verifyFormat( 5175 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 5176 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 5177 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 5178 5179 verifyFormat( 5180 "aaaaaaaaaaaaaaa(bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb::\n" 5181 " cccccccccccccccccccccccccccccccccccccccccccccc());"); 5182 5183 // Breaking at nested name specifiers is generally not desirable. 5184 verifyFormat( 5185 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5186 " aaaaaaaaaaaaaaaaaaaaaaa);"); 5187 5188 verifyFormat( 5189 "aaaaaaaaaaaaaaaaaa(aaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 5190 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5191 " aaaaaaaaaaaaaaaaaaaaa);", 5192 getLLVMStyleWithColumns(74)); 5193 5194 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 5195 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5196 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 5197 } 5198 5199 TEST_F(FormatTest, UnderstandsTemplateParameters) { 5200 verifyFormat("A<int> a;"); 5201 verifyFormat("A<A<A<int>>> a;"); 5202 verifyFormat("A<A<A<int, 2>, 3>, 4> a;"); 5203 verifyFormat("bool x = a < 1 || 2 > a;"); 5204 verifyFormat("bool x = 5 < f<int>();"); 5205 verifyFormat("bool x = f<int>() > 5;"); 5206 verifyFormat("bool x = 5 < a<int>::x;"); 5207 verifyFormat("bool x = a < 4 ? a > 2 : false;"); 5208 verifyFormat("bool x = f() ? a < 2 : a > 2;"); 5209 5210 verifyGoogleFormat("A<A<int>> a;"); 5211 verifyGoogleFormat("A<A<A<int>>> a;"); 5212 verifyGoogleFormat("A<A<A<A<int>>>> a;"); 5213 verifyGoogleFormat("A<A<int> > a;"); 5214 verifyGoogleFormat("A<A<A<int> > > a;"); 5215 verifyGoogleFormat("A<A<A<A<int> > > > a;"); 5216 verifyGoogleFormat("A<::A<int>> a;"); 5217 verifyGoogleFormat("A<::A> a;"); 5218 verifyGoogleFormat("A< ::A> a;"); 5219 verifyGoogleFormat("A< ::A<int> > a;"); 5220 EXPECT_EQ("A<A<A<A>>> a;", format("A<A<A<A> >> a;", getGoogleStyle())); 5221 EXPECT_EQ("A<A<A<A>>> a;", format("A<A<A<A>> > a;", getGoogleStyle())); 5222 EXPECT_EQ("A<::A<int>> a;", format("A< ::A<int>> a;", getGoogleStyle())); 5223 EXPECT_EQ("A<::A<int>> a;", format("A<::A<int> > a;", getGoogleStyle())); 5224 EXPECT_EQ("auto x = [] { A<A<A<A>>> a; };", 5225 format("auto x=[]{A<A<A<A> >> a;};", getGoogleStyle())); 5226 5227 verifyFormat("A<A>> a;", getChromiumStyle(FormatStyle::LK_Cpp)); 5228 5229 verifyFormat("test >> a >> b;"); 5230 verifyFormat("test << a >> b;"); 5231 5232 verifyFormat("f<int>();"); 5233 verifyFormat("template <typename T> void f() {}"); 5234 verifyFormat("struct A<std::enable_if<sizeof(T2) < sizeof(int32)>::type>;"); 5235 verifyFormat("struct A<std::enable_if<sizeof(T2) ? sizeof(int32) : " 5236 "sizeof(char)>::type>;"); 5237 verifyFormat("template <class T> struct S<std::is_arithmetic<T>{}> {};"); 5238 5239 // Not template parameters. 5240 verifyFormat("return a < b && c > d;"); 5241 verifyFormat("void f() {\n" 5242 " while (a < b && c > d) {\n" 5243 " }\n" 5244 "}"); 5245 verifyFormat("template <typename... Types>\n" 5246 "typename enable_if<0 < sizeof...(Types)>::type Foo() {}"); 5247 5248 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5249 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaa >> aaaaa);", 5250 getLLVMStyleWithColumns(60)); 5251 verifyFormat("static_assert(is_convertible<A &&, B>::value, \"AAA\");"); 5252 verifyFormat("Constructor(A... a) : a_(X<A>{std::forward<A>(a)}...) {}"); 5253 verifyFormat("< < < < < < < < < < < < < < < < < < < < < < < < < < < < < <"); 5254 } 5255 5256 TEST_F(FormatTest, UnderstandsBinaryOperators) { 5257 verifyFormat("COMPARE(a, ==, b);"); 5258 } 5259 5260 TEST_F(FormatTest, UnderstandsPointersToMembers) { 5261 verifyFormat("int A::*x;"); 5262 verifyFormat("int (S::*func)(void *);"); 5263 verifyFormat("void f() { int (S::*func)(void *); }"); 5264 verifyFormat("typedef bool *(Class::*Member)() const;"); 5265 verifyFormat("void f() {\n" 5266 " (a->*f)();\n" 5267 " a->*x;\n" 5268 " (a.*f)();\n" 5269 " ((*a).*f)();\n" 5270 " a.*x;\n" 5271 "}"); 5272 verifyFormat("void f() {\n" 5273 " (a->*aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)(\n" 5274 " aaaa, bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb);\n" 5275 "}"); 5276 verifyFormat( 5277 "(aaaaaaaaaa->*bbbbbbb)(\n" 5278 " aaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaa));"); 5279 FormatStyle Style = getLLVMStyle(); 5280 Style.PointerAlignment = FormatStyle::PAS_Left; 5281 verifyFormat("typedef bool* (Class::*Member)() const;", Style); 5282 } 5283 5284 TEST_F(FormatTest, UnderstandsUnaryOperators) { 5285 verifyFormat("int a = -2;"); 5286 verifyFormat("f(-1, -2, -3);"); 5287 verifyFormat("a[-1] = 5;"); 5288 verifyFormat("int a = 5 + -2;"); 5289 verifyFormat("if (i == -1) {\n}"); 5290 verifyFormat("if (i != -1) {\n}"); 5291 verifyFormat("if (i > -1) {\n}"); 5292 verifyFormat("if (i < -1) {\n}"); 5293 verifyFormat("++(a->f());"); 5294 verifyFormat("--(a->f());"); 5295 verifyFormat("(a->f())++;"); 5296 verifyFormat("a[42]++;"); 5297 verifyFormat("if (!(a->f())) {\n}"); 5298 5299 verifyFormat("a-- > b;"); 5300 verifyFormat("b ? -a : c;"); 5301 verifyFormat("n * sizeof char16;"); 5302 verifyFormat("n * alignof char16;", getGoogleStyle()); 5303 verifyFormat("sizeof(char);"); 5304 verifyFormat("alignof(char);", getGoogleStyle()); 5305 5306 verifyFormat("return -1;"); 5307 verifyFormat("switch (a) {\n" 5308 "case -1:\n" 5309 " break;\n" 5310 "}"); 5311 verifyFormat("#define X -1"); 5312 verifyFormat("#define X -kConstant"); 5313 5314 verifyFormat("const NSPoint kBrowserFrameViewPatternOffset = {-5, +3};"); 5315 verifyFormat("const NSPoint kBrowserFrameViewPatternOffset = {+5, -3};"); 5316 5317 verifyFormat("int a = /* confusing comment */ -1;"); 5318 // FIXME: The space after 'i' is wrong, but hopefully, this is a rare case. 5319 verifyFormat("int a = i /* confusing comment */++;"); 5320 } 5321 5322 TEST_F(FormatTest, DoesNotIndentRelativeToUnaryOperators) { 5323 verifyFormat("if (!aaaaaaaaaa( // break\n" 5324 " aaaaa)) {\n" 5325 "}"); 5326 verifyFormat("aaaaaaaaaa(!aaaaaaaaaa( // break\n" 5327 " aaaaa));"); 5328 verifyFormat("*aaa = aaaaaaa( // break\n" 5329 " bbbbbb);"); 5330 } 5331 5332 TEST_F(FormatTest, UnderstandsOverloadedOperators) { 5333 verifyFormat("bool operator<();"); 5334 verifyFormat("bool operator>();"); 5335 verifyFormat("bool operator=();"); 5336 verifyFormat("bool operator==();"); 5337 verifyFormat("bool operator!=();"); 5338 verifyFormat("int operator+();"); 5339 verifyFormat("int operator++();"); 5340 verifyFormat("bool operator();"); 5341 verifyFormat("bool operator()();"); 5342 verifyFormat("bool operator[]();"); 5343 verifyFormat("operator bool();"); 5344 verifyFormat("operator int();"); 5345 verifyFormat("operator void *();"); 5346 verifyFormat("operator SomeType<int>();"); 5347 verifyFormat("operator SomeType<int, int>();"); 5348 verifyFormat("operator SomeType<SomeType<int>>();"); 5349 verifyFormat("void *operator new(std::size_t size);"); 5350 verifyFormat("void *operator new[](std::size_t size);"); 5351 verifyFormat("void operator delete(void *ptr);"); 5352 verifyFormat("void operator delete[](void *ptr);"); 5353 verifyFormat("template <typename AAAAAAA, typename BBBBBBB>\n" 5354 "AAAAAAA operator/(const AAAAAAA &a, BBBBBBB &b);"); 5355 5356 verifyFormat( 5357 "ostream &operator<<(ostream &OutputStream,\n" 5358 " SomeReallyLongType WithSomeReallyLongValue);"); 5359 verifyFormat("bool operator<(const aaaaaaaaaaaaaaaaaaaaa &left,\n" 5360 " const aaaaaaaaaaaaaaaaaaaaa &right) {\n" 5361 " return left.group < right.group;\n" 5362 "}"); 5363 verifyFormat("SomeType &operator=(const SomeType &S);"); 5364 verifyFormat("f.template operator()<int>();"); 5365 5366 verifyGoogleFormat("operator void*();"); 5367 verifyGoogleFormat("operator SomeType<SomeType<int>>();"); 5368 verifyGoogleFormat("operator ::A();"); 5369 5370 verifyFormat("using A::operator+;"); 5371 verifyFormat("inline A operator^(const A &lhs, const A &rhs) {}\n" 5372 "int i;"); 5373 } 5374 5375 TEST_F(FormatTest, UnderstandsFunctionRefQualification) { 5376 verifyFormat("Deleted &operator=(const Deleted &) & = default;"); 5377 verifyFormat("Deleted &operator=(const Deleted &) && = delete;"); 5378 verifyFormat("SomeType MemberFunction(const Deleted &) & = delete;"); 5379 verifyFormat("SomeType MemberFunction(const Deleted &) && = delete;"); 5380 verifyFormat("Deleted &operator=(const Deleted &) &;"); 5381 verifyFormat("Deleted &operator=(const Deleted &) &&;"); 5382 verifyFormat("SomeType MemberFunction(const Deleted &) &;"); 5383 verifyFormat("SomeType MemberFunction(const Deleted &) &&;"); 5384 verifyFormat("SomeType MemberFunction(const Deleted &) && {}"); 5385 verifyFormat("SomeType MemberFunction(const Deleted &) && final {}"); 5386 verifyFormat("SomeType MemberFunction(const Deleted &) && override {}"); 5387 5388 FormatStyle AlignLeft = getLLVMStyle(); 5389 AlignLeft.PointerAlignment = FormatStyle::PAS_Left; 5390 verifyFormat("Deleted& operator=(const Deleted&) & = default;", AlignLeft); 5391 verifyFormat("SomeType MemberFunction(const Deleted&) & = delete;", 5392 AlignLeft); 5393 verifyFormat("Deleted& operator=(const Deleted&) &;", AlignLeft); 5394 verifyFormat("SomeType MemberFunction(const Deleted&) &;", AlignLeft); 5395 5396 FormatStyle Spaces = getLLVMStyle(); 5397 Spaces.SpacesInCStyleCastParentheses = true; 5398 verifyFormat("Deleted &operator=(const Deleted &) & = default;", Spaces); 5399 verifyFormat("SomeType MemberFunction(const Deleted &) & = delete;", Spaces); 5400 verifyFormat("Deleted &operator=(const Deleted &) &;", Spaces); 5401 verifyFormat("SomeType MemberFunction(const Deleted &) &;", Spaces); 5402 5403 Spaces.SpacesInCStyleCastParentheses = false; 5404 Spaces.SpacesInParentheses = true; 5405 verifyFormat("Deleted &operator=( const Deleted & ) & = default;", Spaces); 5406 verifyFormat("SomeType MemberFunction( const Deleted & ) & = delete;", Spaces); 5407 verifyFormat("Deleted &operator=( const Deleted & ) &;", Spaces); 5408 verifyFormat("SomeType MemberFunction( const Deleted & ) &;", Spaces); 5409 } 5410 5411 TEST_F(FormatTest, UnderstandsNewAndDelete) { 5412 verifyFormat("void f() {\n" 5413 " A *a = new A;\n" 5414 " A *a = new (placement) A;\n" 5415 " delete a;\n" 5416 " delete (A *)a;\n" 5417 "}"); 5418 verifyFormat("new (aaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaa))\n" 5419 " typename aaaaaaaaaaaaaaaaaaaaaaaa();"); 5420 verifyFormat("auto aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 5421 " new (aaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaa))\n" 5422 " typename aaaaaaaaaaaaaaaaaaaaaaaa();"); 5423 verifyFormat("delete[] h->p;"); 5424 } 5425 5426 TEST_F(FormatTest, UnderstandsUsesOfStarAndAmp) { 5427 verifyFormat("int *f(int *a) {}"); 5428 verifyFormat("int main(int argc, char **argv) {}"); 5429 verifyFormat("Test::Test(int b) : a(b * b) {}"); 5430 verifyIndependentOfContext("f(a, *a);"); 5431 verifyFormat("void g() { f(*a); }"); 5432 verifyIndependentOfContext("int a = b * 10;"); 5433 verifyIndependentOfContext("int a = 10 * b;"); 5434 verifyIndependentOfContext("int a = b * c;"); 5435 verifyIndependentOfContext("int a += b * c;"); 5436 verifyIndependentOfContext("int a -= b * c;"); 5437 verifyIndependentOfContext("int a *= b * c;"); 5438 verifyIndependentOfContext("int a /= b * c;"); 5439 verifyIndependentOfContext("int a = *b;"); 5440 verifyIndependentOfContext("int a = *b * c;"); 5441 verifyIndependentOfContext("int a = b * *c;"); 5442 verifyIndependentOfContext("int a = b * (10);"); 5443 verifyIndependentOfContext("S << b * (10);"); 5444 verifyIndependentOfContext("return 10 * b;"); 5445 verifyIndependentOfContext("return *b * *c;"); 5446 verifyIndependentOfContext("return a & ~b;"); 5447 verifyIndependentOfContext("f(b ? *c : *d);"); 5448 verifyIndependentOfContext("int a = b ? *c : *d;"); 5449 verifyIndependentOfContext("*b = a;"); 5450 verifyIndependentOfContext("a * ~b;"); 5451 verifyIndependentOfContext("a * !b;"); 5452 verifyIndependentOfContext("a * +b;"); 5453 verifyIndependentOfContext("a * -b;"); 5454 verifyIndependentOfContext("a * ++b;"); 5455 verifyIndependentOfContext("a * --b;"); 5456 verifyIndependentOfContext("a[4] * b;"); 5457 verifyIndependentOfContext("a[a * a] = 1;"); 5458 verifyIndependentOfContext("f() * b;"); 5459 verifyIndependentOfContext("a * [self dostuff];"); 5460 verifyIndependentOfContext("int x = a * (a + b);"); 5461 verifyIndependentOfContext("(a *)(a + b);"); 5462 verifyIndependentOfContext("*(int *)(p & ~3UL) = 0;"); 5463 verifyIndependentOfContext("int *pa = (int *)&a;"); 5464 verifyIndependentOfContext("return sizeof(int **);"); 5465 verifyIndependentOfContext("return sizeof(int ******);"); 5466 verifyIndependentOfContext("return (int **&)a;"); 5467 verifyIndependentOfContext("f((*PointerToArray)[10]);"); 5468 verifyFormat("void f(Type (*parameter)[10]) {}"); 5469 verifyFormat("void f(Type (¶meter)[10]) {}"); 5470 verifyGoogleFormat("return sizeof(int**);"); 5471 verifyIndependentOfContext("Type **A = static_cast<Type **>(P);"); 5472 verifyGoogleFormat("Type** A = static_cast<Type**>(P);"); 5473 verifyFormat("auto a = [](int **&, int ***) {};"); 5474 verifyFormat("auto PointerBinding = [](const char *S) {};"); 5475 verifyFormat("typedef typeof(int(int, int)) *MyFunc;"); 5476 verifyFormat("[](const decltype(*a) &value) {}"); 5477 verifyFormat("decltype(a * b) F();"); 5478 verifyFormat("#define MACRO() [](A *a) { return 1; }"); 5479 verifyIndependentOfContext("typedef void (*f)(int *a);"); 5480 verifyIndependentOfContext("int i{a * b};"); 5481 verifyIndependentOfContext("aaa && aaa->f();"); 5482 verifyIndependentOfContext("int x = ~*p;"); 5483 verifyFormat("Constructor() : a(a), area(width * height) {}"); 5484 verifyFormat("Constructor() : a(a), area(a, width * height) {}"); 5485 verifyGoogleFormat("MACRO Constructor(const int& i) : a(a), b(b) {}"); 5486 verifyFormat("void f() { f(a, c * d); }"); 5487 verifyFormat("void f() { f(new a(), c * d); }"); 5488 5489 verifyIndependentOfContext("InvalidRegions[*R] = 0;"); 5490 5491 verifyIndependentOfContext("A<int *> a;"); 5492 verifyIndependentOfContext("A<int **> a;"); 5493 verifyIndependentOfContext("A<int *, int *> a;"); 5494 verifyIndependentOfContext("A<int *[]> a;"); 5495 verifyIndependentOfContext( 5496 "const char *const p = reinterpret_cast<const char *const>(q);"); 5497 verifyIndependentOfContext("A<int **, int **> a;"); 5498 verifyIndependentOfContext("void f(int *a = d * e, int *b = c * d);"); 5499 verifyFormat("for (char **a = b; *a; ++a) {\n}"); 5500 verifyFormat("for (; a && b;) {\n}"); 5501 verifyFormat("bool foo = true && [] { return false; }();"); 5502 5503 verifyFormat( 5504 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5505 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa, *aaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 5506 5507 verifyGoogleFormat("**outparam = 1;"); 5508 verifyGoogleFormat("*outparam = a * b;"); 5509 verifyGoogleFormat("int main(int argc, char** argv) {}"); 5510 verifyGoogleFormat("A<int*> a;"); 5511 verifyGoogleFormat("A<int**> a;"); 5512 verifyGoogleFormat("A<int*, int*> a;"); 5513 verifyGoogleFormat("A<int**, int**> a;"); 5514 verifyGoogleFormat("f(b ? *c : *d);"); 5515 verifyGoogleFormat("int a = b ? *c : *d;"); 5516 verifyGoogleFormat("Type* t = **x;"); 5517 verifyGoogleFormat("Type* t = *++*x;"); 5518 verifyGoogleFormat("*++*x;"); 5519 verifyGoogleFormat("Type* t = const_cast<T*>(&*x);"); 5520 verifyGoogleFormat("Type* t = x++ * y;"); 5521 verifyGoogleFormat( 5522 "const char* const p = reinterpret_cast<const char* const>(q);"); 5523 verifyGoogleFormat("void f(int i = 0, SomeType** temps = NULL);"); 5524 verifyGoogleFormat("void f(Bar* a = nullptr, Bar* b);"); 5525 verifyGoogleFormat("template <typename T>\n" 5526 "void f(int i = 0, SomeType** temps = NULL);"); 5527 5528 FormatStyle Left = getLLVMStyle(); 5529 Left.PointerAlignment = FormatStyle::PAS_Left; 5530 verifyFormat("x = *a(x) = *a(y);", Left); 5531 verifyFormat("for (;; * = b) {\n}", Left); 5532 5533 verifyIndependentOfContext("a = *(x + y);"); 5534 verifyIndependentOfContext("a = &(x + y);"); 5535 verifyIndependentOfContext("*(x + y).call();"); 5536 verifyIndependentOfContext("&(x + y)->call();"); 5537 verifyFormat("void f() { &(*I).first; }"); 5538 5539 verifyIndependentOfContext("f(b * /* confusing comment */ ++c);"); 5540 verifyFormat( 5541 "int *MyValues = {\n" 5542 " *A, // Operator detection might be confused by the '{'\n" 5543 " *BB // Operator detection might be confused by previous comment\n" 5544 "};"); 5545 5546 verifyIndependentOfContext("if (int *a = &b)"); 5547 verifyIndependentOfContext("if (int &a = *b)"); 5548 verifyIndependentOfContext("if (a & b[i])"); 5549 verifyIndependentOfContext("if (a::b::c::d & b[i])"); 5550 verifyIndependentOfContext("if (*b[i])"); 5551 verifyIndependentOfContext("if (int *a = (&b))"); 5552 verifyIndependentOfContext("while (int *a = &b)"); 5553 verifyIndependentOfContext("size = sizeof *a;"); 5554 verifyIndependentOfContext("if (a && (b = c))"); 5555 verifyFormat("void f() {\n" 5556 " for (const int &v : Values) {\n" 5557 " }\n" 5558 "}"); 5559 verifyFormat("for (int i = a * a; i < 10; ++i) {\n}"); 5560 verifyFormat("for (int i = 0; i < a * a; ++i) {\n}"); 5561 verifyGoogleFormat("for (int i = 0; i * 2 < z; i *= 2) {\n}"); 5562 5563 verifyFormat("#define A (!a * b)"); 5564 verifyFormat("#define MACRO \\\n" 5565 " int *i = a * b; \\\n" 5566 " void f(a *b);", 5567 getLLVMStyleWithColumns(19)); 5568 5569 verifyIndependentOfContext("A = new SomeType *[Length];"); 5570 verifyIndependentOfContext("A = new SomeType *[Length]();"); 5571 verifyIndependentOfContext("T **t = new T *;"); 5572 verifyIndependentOfContext("T **t = new T *();"); 5573 verifyGoogleFormat("A = new SomeType*[Length]();"); 5574 verifyGoogleFormat("A = new SomeType*[Length];"); 5575 verifyGoogleFormat("T** t = new T*;"); 5576 verifyGoogleFormat("T** t = new T*();"); 5577 5578 FormatStyle PointerLeft = getLLVMStyle(); 5579 PointerLeft.PointerAlignment = FormatStyle::PAS_Left; 5580 verifyFormat("delete *x;", PointerLeft); 5581 verifyFormat("STATIC_ASSERT((a & b) == 0);"); 5582 verifyFormat("STATIC_ASSERT(0 == (a & b));"); 5583 verifyFormat("template <bool a, bool b> " 5584 "typename t::if<x && y>::type f() {}"); 5585 verifyFormat("template <int *y> f() {}"); 5586 verifyFormat("vector<int *> v;"); 5587 verifyFormat("vector<int *const> v;"); 5588 verifyFormat("vector<int *const **const *> v;"); 5589 verifyFormat("vector<int *volatile> v;"); 5590 verifyFormat("vector<a * b> v;"); 5591 verifyFormat("foo<b && false>();"); 5592 verifyFormat("foo<b & 1>();"); 5593 verifyFormat("decltype(*::std::declval<const T &>()) void F();"); 5594 verifyFormat( 5595 "template <class T, class = typename std::enable_if<\n" 5596 " std::is_integral<T>::value &&\n" 5597 " (sizeof(T) > 1 || sizeof(T) < 8)>::type>\n" 5598 "void F();", 5599 getLLVMStyleWithColumns(76)); 5600 verifyFormat( 5601 "template <class T,\n" 5602 " class = typename ::std::enable_if<\n" 5603 " ::std::is_array<T>{} && ::std::is_array<T>{}>::type>\n" 5604 "void F();", 5605 getGoogleStyleWithColumns(68)); 5606 5607 verifyIndependentOfContext("MACRO(int *i);"); 5608 verifyIndependentOfContext("MACRO(auto *a);"); 5609 verifyIndependentOfContext("MACRO(const A *a);"); 5610 verifyIndependentOfContext("MACRO('0' <= c && c <= '9');"); 5611 // FIXME: Is there a way to make this work? 5612 // verifyIndependentOfContext("MACRO(A *a);"); 5613 5614 verifyFormat("DatumHandle const *operator->() const { return input_; }"); 5615 verifyFormat("return options != nullptr && operator==(*options);"); 5616 5617 EXPECT_EQ("#define OP(x) \\\n" 5618 " ostream &operator<<(ostream &s, const A &a) { \\\n" 5619 " return s << a.DebugString(); \\\n" 5620 " }", 5621 format("#define OP(x) \\\n" 5622 " ostream &operator<<(ostream &s, const A &a) { \\\n" 5623 " return s << a.DebugString(); \\\n" 5624 " }", 5625 getLLVMStyleWithColumns(50))); 5626 5627 // FIXME: We cannot handle this case yet; we might be able to figure out that 5628 // foo<x> d > v; doesn't make sense. 5629 verifyFormat("foo<a<b && c> d> v;"); 5630 5631 FormatStyle PointerMiddle = getLLVMStyle(); 5632 PointerMiddle.PointerAlignment = FormatStyle::PAS_Middle; 5633 verifyFormat("delete *x;", PointerMiddle); 5634 verifyFormat("int * x;", PointerMiddle); 5635 verifyFormat("template <int * y> f() {}", PointerMiddle); 5636 verifyFormat("int * f(int * a) {}", PointerMiddle); 5637 verifyFormat("int main(int argc, char ** argv) {}", PointerMiddle); 5638 verifyFormat("Test::Test(int b) : a(b * b) {}", PointerMiddle); 5639 verifyFormat("A<int *> a;", PointerMiddle); 5640 verifyFormat("A<int **> a;", PointerMiddle); 5641 verifyFormat("A<int *, int *> a;", PointerMiddle); 5642 verifyFormat("A<int * []> a;", PointerMiddle); 5643 verifyFormat("A = new SomeType *[Length]();", PointerMiddle); 5644 verifyFormat("A = new SomeType *[Length];", PointerMiddle); 5645 verifyFormat("T ** t = new T *;", PointerMiddle); 5646 5647 // Member function reference qualifiers aren't binary operators. 5648 verifyFormat("string // break\n" 5649 "operator()() & {}"); 5650 verifyFormat("string // break\n" 5651 "operator()() && {}"); 5652 verifyGoogleFormat("template <typename T>\n" 5653 "auto x() & -> int {}"); 5654 } 5655 5656 TEST_F(FormatTest, UnderstandsAttributes) { 5657 verifyFormat("SomeType s __attribute__((unused)) (InitValue);"); 5658 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa __attribute__((unused))\n" 5659 "aaaaaaaaaaaaaaaaaaaaaaa(int i);"); 5660 FormatStyle AfterType = getLLVMStyle(); 5661 AfterType.AlwaysBreakAfterDefinitionReturnType = FormatStyle::DRTBS_All; 5662 verifyFormat("__attribute__((nodebug)) void\n" 5663 "foo() {}\n", 5664 AfterType); 5665 } 5666 5667 TEST_F(FormatTest, UnderstandsEllipsis) { 5668 verifyFormat("int printf(const char *fmt, ...);"); 5669 verifyFormat("template <class... Ts> void Foo(Ts... ts) { Foo(ts...); }"); 5670 verifyFormat("template <class... Ts> void Foo(Ts *... ts) {}"); 5671 5672 FormatStyle PointersLeft = getLLVMStyle(); 5673 PointersLeft.PointerAlignment = FormatStyle::PAS_Left; 5674 verifyFormat("template <class... Ts> void Foo(Ts*... ts) {}", PointersLeft); 5675 } 5676 5677 TEST_F(FormatTest, AdaptivelyFormatsPointersAndReferences) { 5678 EXPECT_EQ("int *a;\n" 5679 "int *a;\n" 5680 "int *a;", 5681 format("int *a;\n" 5682 "int* a;\n" 5683 "int *a;", 5684 getGoogleStyle())); 5685 EXPECT_EQ("int* a;\n" 5686 "int* a;\n" 5687 "int* a;", 5688 format("int* a;\n" 5689 "int* a;\n" 5690 "int *a;", 5691 getGoogleStyle())); 5692 EXPECT_EQ("int *a;\n" 5693 "int *a;\n" 5694 "int *a;", 5695 format("int *a;\n" 5696 "int * a;\n" 5697 "int * a;", 5698 getGoogleStyle())); 5699 EXPECT_EQ("auto x = [] {\n" 5700 " int *a;\n" 5701 " int *a;\n" 5702 " int *a;\n" 5703 "};", 5704 format("auto x=[]{int *a;\n" 5705 "int * a;\n" 5706 "int * a;};", 5707 getGoogleStyle())); 5708 } 5709 5710 TEST_F(FormatTest, UnderstandsRvalueReferences) { 5711 verifyFormat("int f(int &&a) {}"); 5712 verifyFormat("int f(int a, char &&b) {}"); 5713 verifyFormat("void f() { int &&a = b; }"); 5714 verifyGoogleFormat("int f(int a, char&& b) {}"); 5715 verifyGoogleFormat("void f() { int&& a = b; }"); 5716 5717 verifyIndependentOfContext("A<int &&> a;"); 5718 verifyIndependentOfContext("A<int &&, int &&> a;"); 5719 verifyGoogleFormat("A<int&&> a;"); 5720 verifyGoogleFormat("A<int&&, int&&> a;"); 5721 5722 // Not rvalue references: 5723 verifyFormat("template <bool B, bool C> class A {\n" 5724 " static_assert(B && C, \"Something is wrong\");\n" 5725 "};"); 5726 verifyGoogleFormat("#define IF(a, b, c) if (a && (b == c))"); 5727 verifyGoogleFormat("#define WHILE(a, b, c) while (a && (b == c))"); 5728 verifyFormat("#define A(a, b) (a && b)"); 5729 } 5730 5731 TEST_F(FormatTest, FormatsBinaryOperatorsPrecedingEquals) { 5732 verifyFormat("void f() {\n" 5733 " x[aaaaaaaaa -\n" 5734 " b] = 23;\n" 5735 "}", 5736 getLLVMStyleWithColumns(15)); 5737 } 5738 5739 TEST_F(FormatTest, FormatsCasts) { 5740 verifyFormat("Type *A = static_cast<Type *>(P);"); 5741 verifyFormat("Type *A = (Type *)P;"); 5742 verifyFormat("Type *A = (vector<Type *, int *>)P;"); 5743 verifyFormat("int a = (int)(2.0f);"); 5744 verifyFormat("int a = (int)2.0f;"); 5745 verifyFormat("x[(int32)y];"); 5746 verifyFormat("x = (int32)y;"); 5747 verifyFormat("#define AA(X) sizeof(((X *)NULL)->a)"); 5748 verifyFormat("int a = (int)*b;"); 5749 verifyFormat("int a = (int)2.0f;"); 5750 verifyFormat("int a = (int)~0;"); 5751 verifyFormat("int a = (int)++a;"); 5752 verifyFormat("int a = (int)sizeof(int);"); 5753 verifyFormat("int a = (int)+2;"); 5754 verifyFormat("my_int a = (my_int)2.0f;"); 5755 verifyFormat("my_int a = (my_int)sizeof(int);"); 5756 verifyFormat("return (my_int)aaa;"); 5757 verifyFormat("#define x ((int)-1)"); 5758 verifyFormat("#define LENGTH(x, y) (x) - (y) + 1"); 5759 verifyFormat("#define p(q) ((int *)&q)"); 5760 verifyFormat("fn(a)(b) + 1;"); 5761 5762 verifyFormat("void f() { my_int a = (my_int)*b; }"); 5763 verifyFormat("void f() { return P ? (my_int)*P : (my_int)0; }"); 5764 verifyFormat("my_int a = (my_int)~0;"); 5765 verifyFormat("my_int a = (my_int)++a;"); 5766 verifyFormat("my_int a = (my_int)-2;"); 5767 verifyFormat("my_int a = (my_int)1;"); 5768 verifyFormat("my_int a = (my_int *)1;"); 5769 verifyFormat("my_int a = (const my_int)-1;"); 5770 verifyFormat("my_int a = (const my_int *)-1;"); 5771 verifyFormat("my_int a = (my_int)(my_int)-1;"); 5772 verifyFormat("my_int a = (ns::my_int)-2;"); 5773 verifyFormat("case (my_int)ONE:"); 5774 5775 // FIXME: single value wrapped with paren will be treated as cast. 5776 verifyFormat("void f(int i = (kValue)*kMask) {}"); 5777 5778 verifyFormat("{ (void)F; }"); 5779 5780 // Don't break after a cast's 5781 verifyFormat("int aaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 5782 " (aaaaaaaaaaaaaaaaaaaaaaaaaa *)(aaaaaaaaaaaaaaaaaaaaaa +\n" 5783 " bbbbbbbbbbbbbbbbbbbbbb);"); 5784 5785 // These are not casts. 5786 verifyFormat("void f(int *) {}"); 5787 verifyFormat("f(foo)->b;"); 5788 verifyFormat("f(foo).b;"); 5789 verifyFormat("f(foo)(b);"); 5790 verifyFormat("f(foo)[b];"); 5791 verifyFormat("[](foo) { return 4; }(bar);"); 5792 verifyFormat("(*funptr)(foo)[4];"); 5793 verifyFormat("funptrs[4](foo)[4];"); 5794 verifyFormat("void f(int *);"); 5795 verifyFormat("void f(int *) = 0;"); 5796 verifyFormat("void f(SmallVector<int>) {}"); 5797 verifyFormat("void f(SmallVector<int>);"); 5798 verifyFormat("void f(SmallVector<int>) = 0;"); 5799 verifyFormat("void f(int i = (kA * kB) & kMask) {}"); 5800 verifyFormat("int a = sizeof(int) * b;"); 5801 verifyFormat("int a = alignof(int) * b;", getGoogleStyle()); 5802 verifyFormat("template <> void f<int>(int i) SOME_ANNOTATION;"); 5803 verifyFormat("f(\"%\" SOME_MACRO(ll) \"d\");"); 5804 verifyFormat("aaaaa &operator=(const aaaaa &) LLVM_DELETED_FUNCTION;"); 5805 5806 // These are not casts, but at some point were confused with casts. 5807 verifyFormat("virtual void foo(int *) override;"); 5808 verifyFormat("virtual void foo(char &) const;"); 5809 verifyFormat("virtual void foo(int *a, char *) const;"); 5810 verifyFormat("int a = sizeof(int *) + b;"); 5811 verifyFormat("int a = alignof(int *) + b;", getGoogleStyle()); 5812 verifyFormat("bool b = f(g<int>) && c;"); 5813 verifyFormat("typedef void (*f)(int i) func;"); 5814 5815 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *foo = (aaaaaaaaaaaaaaaaa *)\n" 5816 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;"); 5817 // FIXME: The indentation here is not ideal. 5818 verifyFormat( 5819 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5820 " [bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb] = (*cccccccccccccccc)\n" 5821 " [dddddddddddddddddddddddddddddddddddddddddddddddddddddddd];"); 5822 } 5823 5824 TEST_F(FormatTest, FormatsFunctionTypes) { 5825 verifyFormat("A<bool()> a;"); 5826 verifyFormat("A<SomeType()> a;"); 5827 verifyFormat("A<void (*)(int, std::string)> a;"); 5828 verifyFormat("A<void *(int)>;"); 5829 verifyFormat("void *(*a)(int *, SomeType *);"); 5830 verifyFormat("int (*func)(void *);"); 5831 verifyFormat("void f() { int (*func)(void *); }"); 5832 verifyFormat("template <class CallbackClass>\n" 5833 "using MyCallback = void (CallbackClass::*)(SomeObject *Data);"); 5834 5835 verifyGoogleFormat("A<void*(int*, SomeType*)>;"); 5836 verifyGoogleFormat("void* (*a)(int);"); 5837 verifyGoogleFormat( 5838 "template <class CallbackClass>\n" 5839 "using MyCallback = void (CallbackClass::*)(SomeObject* Data);"); 5840 5841 // Other constructs can look somewhat like function types: 5842 verifyFormat("A<sizeof(*x)> a;"); 5843 verifyFormat("#define DEREF_AND_CALL_F(x) f(*x)"); 5844 verifyFormat("some_var = function(*some_pointer_var)[0];"); 5845 verifyFormat("void f() { function(*some_pointer_var)[0] = 10; }"); 5846 } 5847 5848 TEST_F(FormatTest, FormatsPointersToArrayTypes) { 5849 verifyFormat("A (*foo_)[6];"); 5850 verifyFormat("vector<int> (*foo_)[6];"); 5851 } 5852 5853 TEST_F(FormatTest, BreaksLongVariableDeclarations) { 5854 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n" 5855 " LoooooooooooooooooooooooooooooooooooooooongVariable;"); 5856 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType const\n" 5857 " LoooooooooooooooooooooooooooooooooooooooongVariable;"); 5858 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n" 5859 " *LoooooooooooooooooooooooooooooooooooooooongVariable;"); 5860 5861 // Different ways of ()-initializiation. 5862 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n" 5863 " LoooooooooooooooooooooooooooooooooooooooongVariable(1);"); 5864 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n" 5865 " LoooooooooooooooooooooooooooooooooooooooongVariable(a);"); 5866 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n" 5867 " LoooooooooooooooooooooooooooooooooooooooongVariable({});"); 5868 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n" 5869 " LoooooooooooooooooooooooooooooooooooooongVariable([A a]);"); 5870 } 5871 5872 TEST_F(FormatTest, BreaksLongDeclarations) { 5873 verifyFormat("typedef LoooooooooooooooooooooooooooooooooooooooongType\n" 5874 " AnotherNameForTheLongType;"); 5875 verifyFormat("typedef LongTemplateType<aaaaaaaaaaaaaaaaaaa()>\n" 5876 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 5877 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType\n" 5878 "LoooooooooooooooooooooooooooooooongFunctionDeclaration();"); 5879 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType *\n" 5880 "LoooooooooooooooooooooooooooooooongFunctionDeclaration();"); 5881 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType\n" 5882 "LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}"); 5883 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType MACRO\n" 5884 "LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}"); 5885 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType const\n" 5886 "LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}"); 5887 verifyFormat("decltype(LoooooooooooooooooooooooooooooooooooooooongName)\n" 5888 "LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}"); 5889 FormatStyle Indented = getLLVMStyle(); 5890 Indented.IndentWrappedFunctionNames = true; 5891 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType\n" 5892 " LoooooooooooooooooooooooooooooooongFunctionDeclaration();", 5893 Indented); 5894 verifyFormat( 5895 "LoooooooooooooooooooooooooooooooooooooooongReturnType\n" 5896 " LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}", 5897 Indented); 5898 verifyFormat( 5899 "LoooooooooooooooooooooooooooooooooooooooongReturnType const\n" 5900 " LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}", 5901 Indented); 5902 verifyFormat( 5903 "decltype(LoooooooooooooooooooooooooooooooooooooooongName)\n" 5904 " LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}", 5905 Indented); 5906 5907 // FIXME: Without the comment, this breaks after "(". 5908 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType // break\n" 5909 " (*LoooooooooooooooooooooooooooongFunctionTypeVarialbe)();", 5910 getGoogleStyle()); 5911 5912 verifyFormat("int *someFunction(int LoooooooooooooooooooongParam1,\n" 5913 " int LoooooooooooooooooooongParam2) {}"); 5914 verifyFormat( 5915 "TypeSpecDecl *TypeSpecDecl::Create(ASTContext &C, DeclContext *DC,\n" 5916 " SourceLocation L, IdentifierIn *II,\n" 5917 " Type *T) {}"); 5918 verifyFormat("ReallyLongReturnType<TemplateParam1, TemplateParam2>\n" 5919 "ReallyReaaallyLongFunctionName(\n" 5920 " const std::string &SomeParameter,\n" 5921 " const SomeType<string, SomeOtherTemplateParameter>\n" 5922 " &ReallyReallyLongParameterName,\n" 5923 " const SomeType<string, SomeOtherTemplateParameter>\n" 5924 " &AnotherLongParameterName) {}"); 5925 verifyFormat("template <typename A>\n" 5926 "SomeLoooooooooooooooooooooongType<\n" 5927 " typename some_namespace::SomeOtherType<A>::Type>\n" 5928 "Function() {}"); 5929 5930 verifyGoogleFormat( 5931 "aaaaaaaaaaaaaaaa::aaaaaaaaaaaaaaaa<aaaaaaaaaaaaa, aaaaaaaaaaaa>\n" 5932 " aaaaaaaaaaaaaaaaaaaaaaa;"); 5933 verifyGoogleFormat( 5934 "TypeSpecDecl* TypeSpecDecl::Create(ASTContext& C, DeclContext* DC,\n" 5935 " SourceLocation L) {}"); 5936 verifyGoogleFormat( 5937 "some_namespace::LongReturnType\n" 5938 "long_namespace::SomeVeryLongClass::SomeVeryLongFunction(\n" 5939 " int first_long_parameter, int second_parameter) {}"); 5940 5941 verifyGoogleFormat("template <typename T>\n" 5942 "aaaaaaaa::aaaaa::aaaaaa<T, aaaaaaaaaaaaaaaaaaaaaaaaa>\n" 5943 "aaaaaaaaaaaaaaaaaaaaaaaa<T>::aaaaaaa() {}"); 5944 verifyGoogleFormat("A<A<A>> aaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5945 " int aaaaaaaaaaaaaaaaaaaaaaa);"); 5946 5947 verifyFormat("typedef size_t (*aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)(\n" 5948 " const aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5949 " *aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 5950 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5951 " vector<aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>\n" 5952 " aaaaaaaaaaaaaaaaaaaaaaaa);"); 5953 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5954 " vector<aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa<\n" 5955 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>>\n" 5956 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 5957 } 5958 5959 TEST_F(FormatTest, FormatsArrays) { 5960 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaa[aaaaaaaaaaaaaaaaaaaaaaaaa]\n" 5961 " [bbbbbbbbbbbbbbbbbbbbbbbbb] = c;"); 5962 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5963 " [bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb] = ccccccccccc;"); 5964 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5965 " [a][bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb] = cccccccc;"); 5966 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5967 " [aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa]\n" 5968 " [bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb] = ccccccccccc;"); 5969 verifyFormat( 5970 "llvm::outs() << \"aaaaaaaaaaaa: \"\n" 5971 " << (*aaaaaaaiaaaaaaa)[aaaaaaaaaaaaaaaaaaaaaaaaa]\n" 5972 " [aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa];"); 5973 5974 verifyGoogleFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa<int>\n" 5975 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[aaaaaaaaaaaa];"); 5976 verifyFormat( 5977 "aaaaaaaaaaa aaaaaaaaaaaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaa->aaaaaaaaa[0]\n" 5978 " .aaaaaaa[0]\n" 5979 " .aaaaaaaaaaaaaaaaaaaaaa();"); 5980 5981 verifyNoCrash("a[,Y?)]", getLLVMStyleWithColumns(10)); 5982 } 5983 5984 TEST_F(FormatTest, LineStartsWithSpecialCharacter) { 5985 verifyFormat("(a)->b();"); 5986 verifyFormat("--a;"); 5987 } 5988 5989 TEST_F(FormatTest, HandlesIncludeDirectives) { 5990 verifyFormat("#include <string>\n" 5991 "#include <a/b/c.h>\n" 5992 "#include \"a/b/string\"\n" 5993 "#include \"string.h\"\n" 5994 "#include \"string.h\"\n" 5995 "#include <a-a>\n" 5996 "#include < path with space >\n" 5997 "#include_next <test.h>" 5998 "#include \"abc.h\" // this is included for ABC\n" 5999 "#include \"some long include\" // with a comment\n" 6000 "#include \"some very long include paaaaaaaaaaaaaaaaaaaaaaath\"", 6001 getLLVMStyleWithColumns(35)); 6002 EXPECT_EQ("#include \"a.h\"", format("#include \"a.h\"")); 6003 EXPECT_EQ("#include <a>", format("#include<a>")); 6004 6005 verifyFormat("#import <string>"); 6006 verifyFormat("#import <a/b/c.h>"); 6007 verifyFormat("#import \"a/b/string\""); 6008 verifyFormat("#import \"string.h\""); 6009 verifyFormat("#import \"string.h\""); 6010 verifyFormat("#if __has_include(<strstream>)\n" 6011 "#include <strstream>\n" 6012 "#endif"); 6013 6014 verifyFormat("#define MY_IMPORT <a/b>"); 6015 6016 // Protocol buffer definition or missing "#". 6017 verifyFormat("import \"aaaaaaaaaaaaaaaaa/aaaaaaaaaaaaaaa\";", 6018 getLLVMStyleWithColumns(30)); 6019 6020 FormatStyle Style = getLLVMStyle(); 6021 Style.AlwaysBreakBeforeMultilineStrings = true; 6022 Style.ColumnLimit = 0; 6023 verifyFormat("#import \"abc.h\"", Style); 6024 6025 // But 'import' might also be a regular C++ namespace. 6026 verifyFormat("import::SomeFunction(aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 6027 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 6028 } 6029 6030 //===----------------------------------------------------------------------===// 6031 // Error recovery tests. 6032 //===----------------------------------------------------------------------===// 6033 6034 TEST_F(FormatTest, IncompleteParameterLists) { 6035 FormatStyle NoBinPacking = getLLVMStyle(); 6036 NoBinPacking.BinPackParameters = false; 6037 verifyFormat("void aaaaaaaaaaaaaaaaaa(int level,\n" 6038 " double *min_x,\n" 6039 " double *max_x,\n" 6040 " double *min_y,\n" 6041 " double *max_y,\n" 6042 " double *min_z,\n" 6043 " double *max_z, ) {}", 6044 NoBinPacking); 6045 } 6046 6047 TEST_F(FormatTest, IncorrectCodeTrailingStuff) { 6048 verifyFormat("void f() { return; }\n42"); 6049 verifyFormat("void f() {\n" 6050 " if (0)\n" 6051 " return;\n" 6052 "}\n" 6053 "42"); 6054 verifyFormat("void f() { return }\n42"); 6055 verifyFormat("void f() {\n" 6056 " if (0)\n" 6057 " return\n" 6058 "}\n" 6059 "42"); 6060 } 6061 6062 TEST_F(FormatTest, IncorrectCodeMissingSemicolon) { 6063 EXPECT_EQ("void f() { return }", format("void f ( ) { return }")); 6064 EXPECT_EQ("void f() {\n" 6065 " if (a)\n" 6066 " return\n" 6067 "}", 6068 format("void f ( ) { if ( a ) return }")); 6069 EXPECT_EQ("namespace N {\n" 6070 "void f()\n" 6071 "}", 6072 format("namespace N { void f() }")); 6073 EXPECT_EQ("namespace N {\n" 6074 "void f() {}\n" 6075 "void g()\n" 6076 "}", 6077 format("namespace N { void f( ) { } void g( ) }")); 6078 } 6079 6080 TEST_F(FormatTest, IndentationWithinColumnLimitNotPossible) { 6081 verifyFormat("int aaaaaaaa =\n" 6082 " // Overlylongcomment\n" 6083 " b;", 6084 getLLVMStyleWithColumns(20)); 6085 verifyFormat("function(\n" 6086 " ShortArgument,\n" 6087 " LoooooooooooongArgument);\n", 6088 getLLVMStyleWithColumns(20)); 6089 } 6090 6091 TEST_F(FormatTest, IncorrectAccessSpecifier) { 6092 verifyFormat("public:"); 6093 verifyFormat("class A {\n" 6094 "public\n" 6095 " void f() {}\n" 6096 "};"); 6097 verifyFormat("public\n" 6098 "int qwerty;"); 6099 verifyFormat("public\n" 6100 "B {}"); 6101 verifyFormat("public\n" 6102 "{}"); 6103 verifyFormat("public\n" 6104 "B { int x; }"); 6105 } 6106 6107 TEST_F(FormatTest, IncorrectCodeUnbalancedBraces) { 6108 verifyFormat("{"); 6109 verifyFormat("#})"); 6110 verifyNoCrash("(/**/[:!] ?[)."); 6111 } 6112 6113 TEST_F(FormatTest, IncorrectCodeDoNoWhile) { 6114 verifyFormat("do {\n}"); 6115 verifyFormat("do {\n}\n" 6116 "f();"); 6117 verifyFormat("do {\n}\n" 6118 "wheeee(fun);"); 6119 verifyFormat("do {\n" 6120 " f();\n" 6121 "}"); 6122 } 6123 6124 TEST_F(FormatTest, IncorrectCodeMissingParens) { 6125 verifyFormat("if {\n foo;\n foo();\n}"); 6126 verifyFormat("switch {\n foo;\n foo();\n}"); 6127 verifyIncompleteFormat("for {\n foo;\n foo();\n}"); 6128 verifyFormat("while {\n foo;\n foo();\n}"); 6129 verifyFormat("do {\n foo;\n foo();\n} while;"); 6130 } 6131 6132 TEST_F(FormatTest, DoesNotTouchUnwrappedLinesWithErrors) { 6133 verifyIncompleteFormat("namespace {\n" 6134 "class Foo { Foo (\n" 6135 "};\n" 6136 "} // comment"); 6137 } 6138 6139 TEST_F(FormatTest, IncorrectCodeErrorDetection) { 6140 EXPECT_EQ("{\n {}\n", format("{\n{\n}\n")); 6141 EXPECT_EQ("{\n {}\n", format("{\n {\n}\n")); 6142 EXPECT_EQ("{\n {}\n", format("{\n {\n }\n")); 6143 EXPECT_EQ("{\n {}\n}\n}\n", format("{\n {\n }\n }\n}\n")); 6144 6145 EXPECT_EQ("{\n" 6146 " {\n" 6147 " breakme(\n" 6148 " qwe);\n" 6149 " }\n", 6150 format("{\n" 6151 " {\n" 6152 " breakme(qwe);\n" 6153 "}\n", 6154 getLLVMStyleWithColumns(10))); 6155 } 6156 6157 TEST_F(FormatTest, LayoutCallsInsideBraceInitializers) { 6158 verifyFormat("int x = {\n" 6159 " avariable,\n" 6160 " b(alongervariable)};", 6161 getLLVMStyleWithColumns(25)); 6162 } 6163 6164 TEST_F(FormatTest, LayoutBraceInitializersInReturnStatement) { 6165 verifyFormat("return (a)(b){1, 2, 3};"); 6166 } 6167 6168 TEST_F(FormatTest, LayoutCxx11BraceInitializers) { 6169 verifyFormat("vector<int> x{1, 2, 3, 4};"); 6170 verifyFormat("vector<int> x{\n" 6171 " 1, 2, 3, 4,\n" 6172 "};"); 6173 verifyFormat("vector<T> x{{}, {}, {}, {}};"); 6174 verifyFormat("f({1, 2});"); 6175 verifyFormat("auto v = Foo{-1};"); 6176 verifyFormat("f({1, 2}, {{2, 3}, {4, 5}}, c, {d});"); 6177 verifyFormat("Class::Class : member{1, 2, 3} {}"); 6178 verifyFormat("new vector<int>{1, 2, 3};"); 6179 verifyFormat("new int[3]{1, 2, 3};"); 6180 verifyFormat("new int{1};"); 6181 verifyFormat("return {arg1, arg2};"); 6182 verifyFormat("return {arg1, SomeType{parameter}};"); 6183 verifyFormat("int count = set<int>{f(), g(), h()}.size();"); 6184 verifyFormat("new T{arg1, arg2};"); 6185 verifyFormat("f(MyMap[{composite, key}]);"); 6186 verifyFormat("class Class {\n" 6187 " T member = {arg1, arg2};\n" 6188 "};"); 6189 verifyFormat("vector<int> foo = {::SomeGlobalFunction()};"); 6190 verifyFormat("static_assert(std::is_integral<int>{} + 0, \"\");"); 6191 verifyFormat("int a = std::is_integral<int>{} + 0;"); 6192 6193 verifyFormat("int foo(int i) { return fo1{}(i); }"); 6194 verifyFormat("int foo(int i) { return fo1{}(i); }"); 6195 verifyFormat("auto i = decltype(x){};"); 6196 verifyFormat("std::vector<int> v = {1, 0 /* comment */};"); 6197 verifyFormat("Node n{1, Node{1000}, //\n" 6198 " 2};"); 6199 verifyFormat("Aaaa aaaaaaa{\n" 6200 " {\n" 6201 " aaaa,\n" 6202 " },\n" 6203 "};"); 6204 verifyFormat("class C : public D {\n" 6205 " SomeClass SC{2};\n" 6206 "};"); 6207 verifyFormat("class C : public A {\n" 6208 " class D : public B {\n" 6209 " void f() { int i{2}; }\n" 6210 " };\n" 6211 "};"); 6212 verifyFormat("#define A {a, a},"); 6213 6214 // In combination with BinPackArguments = false. 6215 FormatStyle NoBinPacking = getLLVMStyle(); 6216 NoBinPacking.BinPackArguments = false; 6217 verifyFormat("const Aaaaaa aaaaa = {aaaaa,\n" 6218 " bbbbb,\n" 6219 " ccccc,\n" 6220 " ddddd,\n" 6221 " eeeee,\n" 6222 " ffffff,\n" 6223 " ggggg,\n" 6224 " hhhhhh,\n" 6225 " iiiiii,\n" 6226 " jjjjjj,\n" 6227 " kkkkkk};", 6228 NoBinPacking); 6229 verifyFormat("const Aaaaaa aaaaa = {\n" 6230 " aaaaa,\n" 6231 " bbbbb,\n" 6232 " ccccc,\n" 6233 " ddddd,\n" 6234 " eeeee,\n" 6235 " ffffff,\n" 6236 " ggggg,\n" 6237 " hhhhhh,\n" 6238 " iiiiii,\n" 6239 " jjjjjj,\n" 6240 " kkkkkk,\n" 6241 "};", 6242 NoBinPacking); 6243 verifyFormat( 6244 "const Aaaaaa aaaaa = {\n" 6245 " aaaaa, bbbbb, ccccc, ddddd, eeeee, ffffff, ggggg, hhhhhh,\n" 6246 " iiiiii, jjjjjj, kkkkkk, aaaaa, bbbbb, ccccc, ddddd, eeeee,\n" 6247 " ffffff, ggggg, hhhhhh, iiiiii, jjjjjj, kkkkkk,\n" 6248 "};", 6249 NoBinPacking); 6250 6251 // FIXME: The alignment of these trailing comments might be bad. Then again, 6252 // this might be utterly useless in real code. 6253 verifyFormat("Constructor::Constructor()\n" 6254 " : some_value{ //\n" 6255 " aaaaaaa, //\n" 6256 " bbbbbbb} {}"); 6257 6258 // In braced lists, the first comment is always assumed to belong to the 6259 // first element. Thus, it can be moved to the next or previous line as 6260 // appropriate. 6261 EXPECT_EQ("function({// First element:\n" 6262 " 1,\n" 6263 " // Second element:\n" 6264 " 2});", 6265 format("function({\n" 6266 " // First element:\n" 6267 " 1,\n" 6268 " // Second element:\n" 6269 " 2});")); 6270 EXPECT_EQ("std::vector<int> MyNumbers{\n" 6271 " // First element:\n" 6272 " 1,\n" 6273 " // Second element:\n" 6274 " 2};", 6275 format("std::vector<int> MyNumbers{// First element:\n" 6276 " 1,\n" 6277 " // Second element:\n" 6278 " 2};", 6279 getLLVMStyleWithColumns(30))); 6280 // A trailing comma should still lead to an enforced line break. 6281 EXPECT_EQ("vector<int> SomeVector = {\n" 6282 " // aaa\n" 6283 " 1, 2,\n" 6284 "};", 6285 format("vector<int> SomeVector = { // aaa\n" 6286 " 1, 2, };")); 6287 6288 FormatStyle ExtraSpaces = getLLVMStyle(); 6289 ExtraSpaces.Cpp11BracedListStyle = false; 6290 ExtraSpaces.ColumnLimit = 75; 6291 verifyFormat("vector<int> x{ 1, 2, 3, 4 };", ExtraSpaces); 6292 verifyFormat("vector<T> x{ {}, {}, {}, {} };", ExtraSpaces); 6293 verifyFormat("f({ 1, 2 });", ExtraSpaces); 6294 verifyFormat("auto v = Foo{ 1 };", ExtraSpaces); 6295 verifyFormat("f({ 1, 2 }, { { 2, 3 }, { 4, 5 } }, c, { d });", ExtraSpaces); 6296 verifyFormat("Class::Class : member{ 1, 2, 3 } {}", ExtraSpaces); 6297 verifyFormat("new vector<int>{ 1, 2, 3 };", ExtraSpaces); 6298 verifyFormat("new int[3]{ 1, 2, 3 };", ExtraSpaces); 6299 verifyFormat("return { arg1, arg2 };", ExtraSpaces); 6300 verifyFormat("return { arg1, SomeType{ parameter } };", ExtraSpaces); 6301 verifyFormat("int count = set<int>{ f(), g(), h() }.size();", ExtraSpaces); 6302 verifyFormat("new T{ arg1, arg2 };", ExtraSpaces); 6303 verifyFormat("f(MyMap[{ composite, key }]);", ExtraSpaces); 6304 verifyFormat("class Class {\n" 6305 " T member = { arg1, arg2 };\n" 6306 "};", 6307 ExtraSpaces); 6308 verifyFormat( 6309 "foo = aaaaaaaaaaa ? vector<int>{ aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 6310 " aaaaaaaaaaaaaaaaaaaa, aaaaa }\n" 6311 " : vector<int>{ bbbbbbbbbbbbbbbbbbbbbbbbbbb,\n" 6312 " bbbbbbbbbbbbbbbbbbbb, bbbbb };", 6313 ExtraSpaces); 6314 verifyFormat("DoSomethingWithVector({} /* No data */);", ExtraSpaces); 6315 verifyFormat("DoSomethingWithVector({ {} /* No data */ }, { { 1, 2 } });", 6316 ExtraSpaces); 6317 verifyFormat( 6318 "someFunction(OtherParam,\n" 6319 " BracedList{ // comment 1 (Forcing interesting break)\n" 6320 " param1, param2,\n" 6321 " // comment 2\n" 6322 " param3, param4 });", 6323 ExtraSpaces); 6324 verifyFormat( 6325 "std::this_thread::sleep_for(\n" 6326 " std::chrono::nanoseconds{ std::chrono::seconds{ 1 } } / 5);", 6327 ExtraSpaces); 6328 verifyFormat("std::vector<MyValues> aaaaaaaaaaaaaaaaaaa{\n" 6329 " aaaaaaa,\n" 6330 " aaaaaaaaaa,\n" 6331 " aaaaa,\n" 6332 " aaaaaaaaaaaaaaa,\n" 6333 " aaa,\n" 6334 " aaaaaaaaaa,\n" 6335 " a,\n" 6336 " aaaaaaaaaaaaaaaaaaaaa,\n" 6337 " aaaaaaaaaaaa,\n" 6338 " aaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaa,\n" 6339 " aaaaaaa,\n" 6340 " a};"); 6341 verifyFormat("vector<int> foo = { ::SomeGlobalFunction() };", ExtraSpaces); 6342 } 6343 6344 TEST_F(FormatTest, FormatsBracedListsInColumnLayout) { 6345 verifyFormat("vector<int> x = {1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6346 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6347 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6348 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6349 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6350 " 1, 22, 333, 4444, 55555, 666666, 7777777};"); 6351 verifyFormat("vector<int> x = {1, 22, 333, 4444, 55555, 666666, 7777777, //\n" 6352 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6353 " 1, 22, 333, 4444, 55555, //\n" 6354 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6355 " 1, 22, 333, 4444, 55555, 666666, 7777777};"); 6356 verifyFormat( 6357 "vector<int> x = {1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6358 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6359 " 1, 22, 333, 4444, 55555, 666666, // comment\n" 6360 " 7777777, 1, 22, 333, 4444, 55555, 666666,\n" 6361 " 7777777, 1, 22, 333, 4444, 55555, 666666,\n" 6362 " 7777777, 1, 22, 333, 4444, 55555, 666666,\n" 6363 " 7777777};"); 6364 verifyFormat("static const uint16_t CallerSavedRegs64Bittttt[] = {\n" 6365 " X86::RAX, X86::RDX, X86::RCX, X86::RSI, X86::RDI,\n" 6366 " X86::R8, X86::R9, X86::R10, X86::R11, 0};"); 6367 verifyFormat("static const uint16_t CallerSavedRegs64Bittttt[] = {\n" 6368 " X86::RAX, X86::RDX, X86::RCX, X86::RSI, X86::RDI,\n" 6369 " // Separating comment.\n" 6370 " X86::R8, X86::R9, X86::R10, X86::R11, 0};"); 6371 verifyFormat("static const uint16_t CallerSavedRegs64Bittttt[] = {\n" 6372 " // Leading comment\n" 6373 " X86::RAX, X86::RDX, X86::RCX, X86::RSI, X86::RDI,\n" 6374 " X86::R8, X86::R9, X86::R10, X86::R11, 0};"); 6375 verifyFormat("vector<int> x = {1, 1, 1, 1,\n" 6376 " 1, 1, 1, 1};", 6377 getLLVMStyleWithColumns(39)); 6378 verifyFormat("vector<int> x = {1, 1, 1, 1,\n" 6379 " 1, 1, 1, 1};", 6380 getLLVMStyleWithColumns(38)); 6381 verifyFormat("vector<int> aaaaaaaaaaaaaaaaaaaaaa = {\n" 6382 " 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1};", 6383 getLLVMStyleWithColumns(43)); 6384 verifyFormat( 6385 "static unsigned SomeValues[10][3] = {\n" 6386 " {1, 4, 0}, {4, 9, 0}, {4, 5, 9}, {8, 5, 4}, {1, 8, 4},\n" 6387 " {10, 1, 6}, {11, 0, 9}, {2, 11, 9}, {5, 2, 9}, {11, 2, 7}};"); 6388 verifyFormat("static auto fields = new vector<string>{\n" 6389 " \"aaaaaaaaaaaaa\",\n" 6390 " \"aaaaaaaaaaaaa\",\n" 6391 " \"aaaaaaaaaaaa\",\n" 6392 " \"aaaaaaaaaaaaaa\",\n" 6393 " \"aaaaaaaaaaaaaaaaaaaaaaaaa\",\n" 6394 " \"aaaaaaaaaaaa\",\n" 6395 " \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\",\n" 6396 "};"); 6397 verifyFormat("vector<int> x = {1, 2, 3, 4, aaaaaaaaaaaaaaaaa, 6};"); 6398 verifyFormat("vector<int> x = {1, aaaaaaaaaaaaaaaaaaaaaa,\n" 6399 " 2, bbbbbbbbbbbbbbbbbbbbbb,\n" 6400 " 3, cccccccccccccccccccccc};", 6401 getLLVMStyleWithColumns(60)); 6402 6403 // Trailing commas. 6404 verifyFormat("vector<int> x = {\n" 6405 " 1, 1, 1, 1, 1, 1, 1, 1,\n" 6406 "};", 6407 getLLVMStyleWithColumns(39)); 6408 verifyFormat("vector<int> x = {\n" 6409 " 1, 1, 1, 1, 1, 1, 1, 1, //\n" 6410 "};", 6411 getLLVMStyleWithColumns(39)); 6412 verifyFormat("vector<int> x = {1, 1, 1, 1,\n" 6413 " 1, 1, 1, 1,\n" 6414 " /**/ /**/};", 6415 getLLVMStyleWithColumns(39)); 6416 6417 // Trailing comment in the first line. 6418 verifyFormat("vector<int> iiiiiiiiiiiiiii = { //\n" 6419 " 1111111111, 2222222222, 33333333333, 4444444444, //\n" 6420 " 111111111, 222222222, 3333333333, 444444444, //\n" 6421 " 11111111, 22222222, 333333333, 44444444};"); 6422 // Trailing comment in the last line. 6423 verifyFormat("int aaaaa[] = {\n" 6424 " 1, 2, 3, // comment\n" 6425 " 4, 5, 6 // comment\n" 6426 "};"); 6427 6428 // With nested lists, we should either format one item per line or all nested 6429 // lists one on line. 6430 // FIXME: For some nested lists, we can do better. 6431 verifyFormat("return {{aaaaaaaaaaaaaaaaaaaaa},\n" 6432 " {aaaaaaaaaaaaaaaaaaa},\n" 6433 " {aaaaaaaaaaaaaaaaaaaaa},\n" 6434 " {aaaaaaaaaaaaaaaaa}};", 6435 getLLVMStyleWithColumns(60)); 6436 verifyFormat( 6437 "SomeStruct my_struct_array = {\n" 6438 " {aaaaaa, aaaaaaaa, aaaaaaaaaa, aaaaaaaaa, aaaaaaaaa, aaaaaaaaaa,\n" 6439 " aaaaaaaaaaaaa, aaaaaaa, aaa},\n" 6440 " {aaa, aaa},\n" 6441 " {aaa, aaa},\n" 6442 " {aaaa, aaaa, aaaa, aaaa, aaaa, aaaa, aaaa, aaa},\n" 6443 " {aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaa,\n" 6444 " aaaaaaaaaaaa, a, aaaaaaaaaa, aaaaaaaaa, aaa}};"); 6445 6446 // No column layout should be used here. 6447 verifyFormat("aaaaaaaaaaaaaaa = {aaaaaaaaaaaaaaaaaaaaaaaaaaa, 0, 0,\n" 6448 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb};"); 6449 6450 verifyNoCrash("a<,"); 6451 } 6452 6453 TEST_F(FormatTest, PullTrivialFunctionDefinitionsIntoSingleLine) { 6454 FormatStyle DoNotMerge = getLLVMStyle(); 6455 DoNotMerge.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_None; 6456 6457 verifyFormat("void f() { return 42; }"); 6458 verifyFormat("void f() {\n" 6459 " return 42;\n" 6460 "}", 6461 DoNotMerge); 6462 verifyFormat("void f() {\n" 6463 " // Comment\n" 6464 "}"); 6465 verifyFormat("{\n" 6466 "#error {\n" 6467 " int a;\n" 6468 "}"); 6469 verifyFormat("{\n" 6470 " int a;\n" 6471 "#error {\n" 6472 "}"); 6473 verifyFormat("void f() {} // comment"); 6474 verifyFormat("void f() { int a; } // comment"); 6475 verifyFormat("void f() {\n" 6476 "} // comment", 6477 DoNotMerge); 6478 verifyFormat("void f() {\n" 6479 " int a;\n" 6480 "} // comment", 6481 DoNotMerge); 6482 verifyFormat("void f() {\n" 6483 "} // comment", 6484 getLLVMStyleWithColumns(15)); 6485 6486 verifyFormat("void f() { return 42; }", getLLVMStyleWithColumns(23)); 6487 verifyFormat("void f() {\n return 42;\n}", getLLVMStyleWithColumns(22)); 6488 6489 verifyFormat("void f() {}", getLLVMStyleWithColumns(11)); 6490 verifyFormat("void f() {\n}", getLLVMStyleWithColumns(10)); 6491 verifyFormat("class C {\n" 6492 " C()\n" 6493 " : iiiiiiii(nullptr),\n" 6494 " kkkkkkk(nullptr),\n" 6495 " mmmmmmm(nullptr),\n" 6496 " nnnnnnn(nullptr) {}\n" 6497 "};", 6498 getGoogleStyle()); 6499 6500 FormatStyle NoColumnLimit = getLLVMStyle(); 6501 NoColumnLimit.ColumnLimit = 0; 6502 EXPECT_EQ("A() : b(0) {}", format("A():b(0){}", NoColumnLimit)); 6503 EXPECT_EQ("class C {\n" 6504 " A() : b(0) {}\n" 6505 "};", 6506 format("class C{A():b(0){}};", NoColumnLimit)); 6507 EXPECT_EQ("A()\n" 6508 " : b(0) {\n" 6509 "}", 6510 format("A()\n:b(0)\n{\n}", NoColumnLimit)); 6511 6512 FormatStyle DoNotMergeNoColumnLimit = NoColumnLimit; 6513 DoNotMergeNoColumnLimit.AllowShortFunctionsOnASingleLine = 6514 FormatStyle::SFS_None; 6515 EXPECT_EQ("A()\n" 6516 " : b(0) {\n" 6517 "}", 6518 format("A():b(0){}", DoNotMergeNoColumnLimit)); 6519 EXPECT_EQ("A()\n" 6520 " : b(0) {\n" 6521 "}", 6522 format("A()\n:b(0)\n{\n}", DoNotMergeNoColumnLimit)); 6523 6524 verifyFormat("#define A \\\n" 6525 " void f() { \\\n" 6526 " int i; \\\n" 6527 " }", 6528 getLLVMStyleWithColumns(20)); 6529 verifyFormat("#define A \\\n" 6530 " void f() { int i; }", 6531 getLLVMStyleWithColumns(21)); 6532 verifyFormat("#define A \\\n" 6533 " void f() { \\\n" 6534 " int i; \\\n" 6535 " } \\\n" 6536 " int j;", 6537 getLLVMStyleWithColumns(22)); 6538 verifyFormat("#define A \\\n" 6539 " void f() { int i; } \\\n" 6540 " int j;", 6541 getLLVMStyleWithColumns(23)); 6542 } 6543 6544 TEST_F(FormatTest, PullInlineFunctionDefinitionsIntoSingleLine) { 6545 FormatStyle MergeInlineOnly = getLLVMStyle(); 6546 MergeInlineOnly.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Inline; 6547 verifyFormat("class C {\n" 6548 " int f() { return 42; }\n" 6549 "};", 6550 MergeInlineOnly); 6551 verifyFormat("int f() {\n" 6552 " return 42;\n" 6553 "}", 6554 MergeInlineOnly); 6555 } 6556 6557 TEST_F(FormatTest, UnderstandContextOfRecordTypeKeywords) { 6558 // Elaborate type variable declarations. 6559 verifyFormat("struct foo a = {bar};\nint n;"); 6560 verifyFormat("class foo a = {bar};\nint n;"); 6561 verifyFormat("union foo a = {bar};\nint n;"); 6562 6563 // Elaborate types inside function definitions. 6564 verifyFormat("struct foo f() {}\nint n;"); 6565 verifyFormat("class foo f() {}\nint n;"); 6566 verifyFormat("union foo f() {}\nint n;"); 6567 6568 // Templates. 6569 verifyFormat("template <class X> void f() {}\nint n;"); 6570 verifyFormat("template <struct X> void f() {}\nint n;"); 6571 verifyFormat("template <union X> void f() {}\nint n;"); 6572 6573 // Actual definitions... 6574 verifyFormat("struct {\n} n;"); 6575 verifyFormat( 6576 "template <template <class T, class Y>, class Z> class X {\n} n;"); 6577 verifyFormat("union Z {\n int n;\n} x;"); 6578 verifyFormat("class MACRO Z {\n} n;"); 6579 verifyFormat("class MACRO(X) Z {\n} n;"); 6580 verifyFormat("class __attribute__(X) Z {\n} n;"); 6581 verifyFormat("class __declspec(X) Z {\n} n;"); 6582 verifyFormat("class A##B##C {\n} n;"); 6583 verifyFormat("class alignas(16) Z {\n} n;"); 6584 verifyFormat("class MACRO(X) alignas(16) Z {\n} n;"); 6585 verifyFormat("class MACROA MACRO(X) Z {\n} n;"); 6586 6587 // Redefinition from nested context: 6588 verifyFormat("class A::B::C {\n} n;"); 6589 6590 // Template definitions. 6591 verifyFormat( 6592 "template <typename F>\n" 6593 "Matcher(const Matcher<F> &Other,\n" 6594 " typename enable_if_c<is_base_of<F, T>::value &&\n" 6595 " !is_same<F, T>::value>::type * = 0)\n" 6596 " : Implementation(new ImplicitCastMatcher<F>(Other)) {}"); 6597 6598 // FIXME: This is still incorrectly handled at the formatter side. 6599 verifyFormat("template <> struct X < 15, i<3 && 42 < 50 && 33 < 28> {};"); 6600 verifyFormat("int i = SomeFunction(a<b, a> b);"); 6601 6602 // FIXME: 6603 // This now gets parsed incorrectly as class definition. 6604 // verifyFormat("class A<int> f() {\n}\nint n;"); 6605 6606 // Elaborate types where incorrectly parsing the structural element would 6607 // break the indent. 6608 verifyFormat("if (true)\n" 6609 " class X x;\n" 6610 "else\n" 6611 " f();\n"); 6612 6613 // This is simply incomplete. Formatting is not important, but must not crash. 6614 verifyFormat("class A:"); 6615 } 6616 6617 TEST_F(FormatTest, DoNotInterfereWithErrorAndWarning) { 6618 EXPECT_EQ("#error Leave all white!!!!! space* alone!\n", 6619 format("#error Leave all white!!!!! space* alone!\n")); 6620 EXPECT_EQ( 6621 "#warning Leave all white!!!!! space* alone!\n", 6622 format("#warning Leave all white!!!!! space* alone!\n")); 6623 EXPECT_EQ("#error 1", format(" # error 1")); 6624 EXPECT_EQ("#warning 1", format(" # warning 1")); 6625 } 6626 6627 TEST_F(FormatTest, FormatHashIfExpressions) { 6628 verifyFormat("#if AAAA && BBBB"); 6629 verifyFormat("#if (AAAA && BBBB)"); 6630 verifyFormat("#elif (AAAA && BBBB)"); 6631 // FIXME: Come up with a better indentation for #elif. 6632 verifyFormat( 6633 "#if !defined(AAAAAAA) && (defined CCCCCC || defined DDDDDD) && \\\n" 6634 " defined(BBBBBBBB)\n" 6635 "#elif !defined(AAAAAA) && (defined CCCCC || defined DDDDDD) && \\\n" 6636 " defined(BBBBBBBB)\n" 6637 "#endif", 6638 getLLVMStyleWithColumns(65)); 6639 } 6640 6641 TEST_F(FormatTest, MergeHandlingInTheFaceOfPreprocessorDirectives) { 6642 FormatStyle AllowsMergedIf = getGoogleStyle(); 6643 AllowsMergedIf.AllowShortIfStatementsOnASingleLine = true; 6644 verifyFormat("void f() { f(); }\n#error E", AllowsMergedIf); 6645 verifyFormat("if (true) return 42;\n#error E", AllowsMergedIf); 6646 verifyFormat("if (true)\n#error E\n return 42;", AllowsMergedIf); 6647 EXPECT_EQ("if (true) return 42;", 6648 format("if (true)\nreturn 42;", AllowsMergedIf)); 6649 FormatStyle ShortMergedIf = AllowsMergedIf; 6650 ShortMergedIf.ColumnLimit = 25; 6651 verifyFormat("#define A \\\n" 6652 " if (true) return 42;", 6653 ShortMergedIf); 6654 verifyFormat("#define A \\\n" 6655 " f(); \\\n" 6656 " if (true)\n" 6657 "#define B", 6658 ShortMergedIf); 6659 verifyFormat("#define A \\\n" 6660 " f(); \\\n" 6661 " if (true)\n" 6662 "g();", 6663 ShortMergedIf); 6664 verifyFormat("{\n" 6665 "#ifdef A\n" 6666 " // Comment\n" 6667 " if (true) continue;\n" 6668 "#endif\n" 6669 " // Comment\n" 6670 " if (true) continue;\n" 6671 "}", 6672 ShortMergedIf); 6673 ShortMergedIf.ColumnLimit = 29; 6674 verifyFormat("#define A \\\n" 6675 " if (aaaaaaaaaa) return 1; \\\n" 6676 " return 2;", 6677 ShortMergedIf); 6678 ShortMergedIf.ColumnLimit = 28; 6679 verifyFormat("#define A \\\n" 6680 " if (aaaaaaaaaa) \\\n" 6681 " return 1; \\\n" 6682 " return 2;", 6683 ShortMergedIf); 6684 } 6685 6686 TEST_F(FormatTest, BlockCommentsInControlLoops) { 6687 verifyFormat("if (0) /* a comment in a strange place */ {\n" 6688 " f();\n" 6689 "}"); 6690 verifyFormat("if (0) /* a comment in a strange place */ {\n" 6691 " f();\n" 6692 "} /* another comment */ else /* comment #3 */ {\n" 6693 " g();\n" 6694 "}"); 6695 verifyFormat("while (0) /* a comment in a strange place */ {\n" 6696 " f();\n" 6697 "}"); 6698 verifyFormat("for (;;) /* a comment in a strange place */ {\n" 6699 " f();\n" 6700 "}"); 6701 verifyFormat("do /* a comment in a strange place */ {\n" 6702 " f();\n" 6703 "} /* another comment */ while (0);"); 6704 } 6705 6706 TEST_F(FormatTest, BlockComments) { 6707 EXPECT_EQ("/* */ /* */ /* */\n/* */ /* */ /* */", 6708 format("/* *//* */ /* */\n/* *//* */ /* */")); 6709 EXPECT_EQ("/* */ a /* */ b;", format(" /* */ a/* */ b;")); 6710 EXPECT_EQ("#define A /*123*/ \\\n" 6711 " b\n" 6712 "/* */\n" 6713 "someCall(\n" 6714 " parameter);", 6715 format("#define A /*123*/ b\n" 6716 "/* */\n" 6717 "someCall(parameter);", 6718 getLLVMStyleWithColumns(15))); 6719 6720 EXPECT_EQ("#define A\n" 6721 "/* */ someCall(\n" 6722 " parameter);", 6723 format("#define A\n" 6724 "/* */someCall(parameter);", 6725 getLLVMStyleWithColumns(15))); 6726 EXPECT_EQ("/*\n**\n*/", format("/*\n**\n*/")); 6727 EXPECT_EQ("/*\n" 6728 "*\n" 6729 " * aaaaaa\n" 6730 " * aaaaaa\n" 6731 "*/", 6732 format("/*\n" 6733 "*\n" 6734 " * aaaaaa aaaaaa\n" 6735 "*/", 6736 getLLVMStyleWithColumns(10))); 6737 EXPECT_EQ("/*\n" 6738 "**\n" 6739 "* aaaaaa\n" 6740 "*aaaaaa\n" 6741 "*/", 6742 format("/*\n" 6743 "**\n" 6744 "* aaaaaa aaaaaa\n" 6745 "*/", 6746 getLLVMStyleWithColumns(10))); 6747 6748 FormatStyle NoBinPacking = getLLVMStyle(); 6749 NoBinPacking.BinPackParameters = false; 6750 EXPECT_EQ("someFunction(1, /* comment 1 */\n" 6751 " 2, /* comment 2 */\n" 6752 " 3, /* comment 3 */\n" 6753 " aaaa,\n" 6754 " bbbb);", 6755 format("someFunction (1, /* comment 1 */\n" 6756 " 2, /* comment 2 */ \n" 6757 " 3, /* comment 3 */\n" 6758 "aaaa, bbbb );", 6759 NoBinPacking)); 6760 verifyFormat( 6761 "bool aaaaaaaaaaaaa = /* comment: */ aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 6762 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 6763 EXPECT_EQ( 6764 "bool aaaaaaaaaaaaa = /* trailing comment */\n" 6765 " aaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 6766 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaa;", 6767 format( 6768 "bool aaaaaaaaaaaaa = /* trailing comment */\n" 6769 " aaaaaaaaaaaaaaaaaaaaaaaaaaa||aaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 6770 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaa;")); 6771 EXPECT_EQ( 6772 "int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa; /* comment */\n" 6773 "int bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb; /* comment */\n" 6774 "int cccccccccccccccccccccccccccccc; /* comment */\n", 6775 format("int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa; /* comment */\n" 6776 "int bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb; /* comment */\n" 6777 "int cccccccccccccccccccccccccccccc; /* comment */\n")); 6778 6779 verifyFormat("void f(int * /* unused */) {}"); 6780 6781 EXPECT_EQ("/*\n" 6782 " **\n" 6783 " */", 6784 format("/*\n" 6785 " **\n" 6786 " */")); 6787 EXPECT_EQ("/*\n" 6788 " *q\n" 6789 " */", 6790 format("/*\n" 6791 " *q\n" 6792 " */")); 6793 EXPECT_EQ("/*\n" 6794 " * q\n" 6795 " */", 6796 format("/*\n" 6797 " * q\n" 6798 " */")); 6799 EXPECT_EQ("/*\n" 6800 " **/", 6801 format("/*\n" 6802 " **/")); 6803 EXPECT_EQ("/*\n" 6804 " ***/", 6805 format("/*\n" 6806 " ***/")); 6807 } 6808 6809 TEST_F(FormatTest, BlockCommentsInMacros) { 6810 EXPECT_EQ("#define A \\\n" 6811 " { \\\n" 6812 " /* one line */ \\\n" 6813 " someCall();", 6814 format("#define A { \\\n" 6815 " /* one line */ \\\n" 6816 " someCall();", 6817 getLLVMStyleWithColumns(20))); 6818 EXPECT_EQ("#define A \\\n" 6819 " { \\\n" 6820 " /* previous */ \\\n" 6821 " /* one line */ \\\n" 6822 " someCall();", 6823 format("#define A { \\\n" 6824 " /* previous */ \\\n" 6825 " /* one line */ \\\n" 6826 " someCall();", 6827 getLLVMStyleWithColumns(20))); 6828 } 6829 6830 TEST_F(FormatTest, BlockCommentsAtEndOfLine) { 6831 EXPECT_EQ("a = {\n" 6832 " 1111 /* */\n" 6833 "};", 6834 format("a = {1111 /* */\n" 6835 "};", 6836 getLLVMStyleWithColumns(15))); 6837 EXPECT_EQ("a = {\n" 6838 " 1111 /* */\n" 6839 "};", 6840 format("a = {1111 /* */\n" 6841 "};", 6842 getLLVMStyleWithColumns(15))); 6843 6844 // FIXME: The formatting is still wrong here. 6845 EXPECT_EQ("a = {\n" 6846 " 1111 /* a\n" 6847 " */\n" 6848 "};", 6849 format("a = {1111 /* a */\n" 6850 "};", 6851 getLLVMStyleWithColumns(15))); 6852 } 6853 6854 TEST_F(FormatTest, IndentLineCommentsInStartOfBlockAtEndOfFile) { 6855 // FIXME: This is not what we want... 6856 verifyFormat("{\n" 6857 "// a" 6858 "// b"); 6859 } 6860 6861 TEST_F(FormatTest, FormatStarDependingOnContext) { 6862 verifyFormat("void f(int *a);"); 6863 verifyFormat("void f() { f(fint * b); }"); 6864 verifyFormat("class A {\n void f(int *a);\n};"); 6865 verifyFormat("class A {\n int *a;\n};"); 6866 verifyFormat("namespace a {\n" 6867 "namespace b {\n" 6868 "class A {\n" 6869 " void f() {}\n" 6870 " int *a;\n" 6871 "};\n" 6872 "}\n" 6873 "}"); 6874 } 6875 6876 TEST_F(FormatTest, SpecialTokensAtEndOfLine) { 6877 verifyFormat("while"); 6878 verifyFormat("operator"); 6879 } 6880 6881 //===----------------------------------------------------------------------===// 6882 // Objective-C tests. 6883 //===----------------------------------------------------------------------===// 6884 6885 TEST_F(FormatTest, FormatForObjectiveCMethodDecls) { 6886 verifyFormat("- (void)sendAction:(SEL)aSelector to:(BOOL)anObject;"); 6887 EXPECT_EQ("- (NSUInteger)indexOfObject:(id)anObject;", 6888 format("-(NSUInteger)indexOfObject:(id)anObject;")); 6889 EXPECT_EQ("- (NSInteger)Mthod1;", format("-(NSInteger)Mthod1;")); 6890 EXPECT_EQ("+ (id)Mthod2;", format("+(id)Mthod2;")); 6891 EXPECT_EQ("- (NSInteger)Method3:(id)anObject;", 6892 format("-(NSInteger)Method3:(id)anObject;")); 6893 EXPECT_EQ("- (NSInteger)Method4:(id)anObject;", 6894 format("-(NSInteger)Method4:(id)anObject;")); 6895 EXPECT_EQ("- (NSInteger)Method5:(id)anObject:(id)AnotherObject;", 6896 format("-(NSInteger)Method5:(id)anObject:(id)AnotherObject;")); 6897 EXPECT_EQ("- (id)Method6:(id)A:(id)B:(id)C:(id)D;", 6898 format("- (id)Method6:(id)A:(id)B:(id)C:(id)D;")); 6899 EXPECT_EQ("- (void)sendAction:(SEL)aSelector to:(id)anObject " 6900 "forAllCells:(BOOL)flag;", 6901 format("- (void)sendAction:(SEL)aSelector to:(id)anObject " 6902 "forAllCells:(BOOL)flag;")); 6903 6904 // Very long objectiveC method declaration. 6905 verifyFormat("- (void)aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa:\n" 6906 " (SoooooooooooooooooooooomeType *)bbbbbbbbbb;"); 6907 verifyFormat("- (NSUInteger)indexOfObject:(id)anObject\n" 6908 " inRange:(NSRange)range\n" 6909 " outRange:(NSRange)out_range\n" 6910 " outRange1:(NSRange)out_range1\n" 6911 " outRange2:(NSRange)out_range2\n" 6912 " outRange3:(NSRange)out_range3\n" 6913 " outRange4:(NSRange)out_range4\n" 6914 " outRange5:(NSRange)out_range5\n" 6915 " outRange6:(NSRange)out_range6\n" 6916 " outRange7:(NSRange)out_range7\n" 6917 " outRange8:(NSRange)out_range8\n" 6918 " outRange9:(NSRange)out_range9;"); 6919 6920 // When the function name has to be wrapped. 6921 FormatStyle Style = getLLVMStyle(); 6922 Style.IndentWrappedFunctionNames = false; 6923 verifyFormat("- (SomeLooooooooooooooooooooongType *)\n" 6924 "veryLooooooooooongName:(NSString)aaaaaaaaaaaaaa\n" 6925 " anotherName:(NSString)bbbbbbbbbbbbbb {\n" 6926 "}", 6927 Style); 6928 Style.IndentWrappedFunctionNames = true; 6929 verifyFormat("- (SomeLooooooooooooooooooooongType *)\n" 6930 " veryLooooooooooongName:(NSString)aaaaaaaaaaaaaa\n" 6931 " anotherName:(NSString)bbbbbbbbbbbbbb {\n" 6932 "}", 6933 Style); 6934 6935 verifyFormat("- (int)sum:(vector<int>)numbers;"); 6936 verifyGoogleFormat("- (void)setDelegate:(id<Protocol>)delegate;"); 6937 // FIXME: In LLVM style, there should be a space in front of a '<' for ObjC 6938 // protocol lists (but not for template classes): 6939 // verifyFormat("- (void)setDelegate:(id <Protocol>)delegate;"); 6940 6941 verifyFormat("- (int (*)())foo:(int (*)())f;"); 6942 verifyGoogleFormat("- (int (*)())foo:(int (*)())foo;"); 6943 6944 // If there's no return type (very rare in practice!), LLVM and Google style 6945 // agree. 6946 verifyFormat("- foo;"); 6947 verifyFormat("- foo:(int)f;"); 6948 verifyGoogleFormat("- foo:(int)foo;"); 6949 } 6950 6951 TEST_F(FormatTest, FormatObjCInterface) { 6952 verifyFormat("@interface Foo : NSObject <NSSomeDelegate> {\n" 6953 "@public\n" 6954 " int field1;\n" 6955 "@protected\n" 6956 " int field2;\n" 6957 "@private\n" 6958 " int field3;\n" 6959 "@package\n" 6960 " int field4;\n" 6961 "}\n" 6962 "+ (id)init;\n" 6963 "@end"); 6964 6965 verifyGoogleFormat("@interface Foo : NSObject<NSSomeDelegate> {\n" 6966 " @public\n" 6967 " int field1;\n" 6968 " @protected\n" 6969 " int field2;\n" 6970 " @private\n" 6971 " int field3;\n" 6972 " @package\n" 6973 " int field4;\n" 6974 "}\n" 6975 "+ (id)init;\n" 6976 "@end"); 6977 6978 verifyFormat("@interface /* wait for it */ Foo\n" 6979 "+ (id)init;\n" 6980 "// Look, a comment!\n" 6981 "- (int)answerWith:(int)i;\n" 6982 "@end"); 6983 6984 verifyFormat("@interface Foo\n" 6985 "@end\n" 6986 "@interface Bar\n" 6987 "@end"); 6988 6989 verifyFormat("@interface Foo : Bar\n" 6990 "+ (id)init;\n" 6991 "@end"); 6992 6993 verifyFormat("@interface Foo : /**/ Bar /**/ <Baz, /**/ Quux>\n" 6994 "+ (id)init;\n" 6995 "@end"); 6996 6997 verifyGoogleFormat("@interface Foo : Bar<Baz, Quux>\n" 6998 "+ (id)init;\n" 6999 "@end"); 7000 7001 verifyFormat("@interface Foo (HackStuff)\n" 7002 "+ (id)init;\n" 7003 "@end"); 7004 7005 verifyFormat("@interface Foo ()\n" 7006 "+ (id)init;\n" 7007 "@end"); 7008 7009 verifyFormat("@interface Foo (HackStuff) <MyProtocol>\n" 7010 "+ (id)init;\n" 7011 "@end"); 7012 7013 verifyGoogleFormat("@interface Foo (HackStuff)<MyProtocol>\n" 7014 "+ (id)init;\n" 7015 "@end"); 7016 7017 verifyFormat("@interface Foo {\n" 7018 " int _i;\n" 7019 "}\n" 7020 "+ (id)init;\n" 7021 "@end"); 7022 7023 verifyFormat("@interface Foo : Bar {\n" 7024 " int _i;\n" 7025 "}\n" 7026 "+ (id)init;\n" 7027 "@end"); 7028 7029 verifyFormat("@interface Foo : Bar <Baz, Quux> {\n" 7030 " int _i;\n" 7031 "}\n" 7032 "+ (id)init;\n" 7033 "@end"); 7034 7035 verifyFormat("@interface Foo (HackStuff) {\n" 7036 " int _i;\n" 7037 "}\n" 7038 "+ (id)init;\n" 7039 "@end"); 7040 7041 verifyFormat("@interface Foo () {\n" 7042 " int _i;\n" 7043 "}\n" 7044 "+ (id)init;\n" 7045 "@end"); 7046 7047 verifyFormat("@interface Foo (HackStuff) <MyProtocol> {\n" 7048 " int _i;\n" 7049 "}\n" 7050 "+ (id)init;\n" 7051 "@end"); 7052 7053 FormatStyle OnePerLine = getGoogleStyle(); 7054 OnePerLine.BinPackParameters = false; 7055 verifyFormat("@interface aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ()<\n" 7056 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 7057 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 7058 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 7059 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa> {\n" 7060 "}", 7061 OnePerLine); 7062 } 7063 7064 TEST_F(FormatTest, FormatObjCImplementation) { 7065 verifyFormat("@implementation Foo : NSObject {\n" 7066 "@public\n" 7067 " int field1;\n" 7068 "@protected\n" 7069 " int field2;\n" 7070 "@private\n" 7071 " int field3;\n" 7072 "@package\n" 7073 " int field4;\n" 7074 "}\n" 7075 "+ (id)init {\n}\n" 7076 "@end"); 7077 7078 verifyGoogleFormat("@implementation Foo : NSObject {\n" 7079 " @public\n" 7080 " int field1;\n" 7081 " @protected\n" 7082 " int field2;\n" 7083 " @private\n" 7084 " int field3;\n" 7085 " @package\n" 7086 " int field4;\n" 7087 "}\n" 7088 "+ (id)init {\n}\n" 7089 "@end"); 7090 7091 verifyFormat("@implementation Foo\n" 7092 "+ (id)init {\n" 7093 " if (true)\n" 7094 " return nil;\n" 7095 "}\n" 7096 "// Look, a comment!\n" 7097 "- (int)answerWith:(int)i {\n" 7098 " return i;\n" 7099 "}\n" 7100 "+ (int)answerWith:(int)i {\n" 7101 " return i;\n" 7102 "}\n" 7103 "@end"); 7104 7105 verifyFormat("@implementation Foo\n" 7106 "@end\n" 7107 "@implementation Bar\n" 7108 "@end"); 7109 7110 EXPECT_EQ("@implementation Foo : Bar\n" 7111 "+ (id)init {\n}\n" 7112 "- (void)foo {\n}\n" 7113 "@end", 7114 format("@implementation Foo : Bar\n" 7115 "+(id)init{}\n" 7116 "-(void)foo{}\n" 7117 "@end")); 7118 7119 verifyFormat("@implementation Foo {\n" 7120 " int _i;\n" 7121 "}\n" 7122 "+ (id)init {\n}\n" 7123 "@end"); 7124 7125 verifyFormat("@implementation Foo : Bar {\n" 7126 " int _i;\n" 7127 "}\n" 7128 "+ (id)init {\n}\n" 7129 "@end"); 7130 7131 verifyFormat("@implementation Foo (HackStuff)\n" 7132 "+ (id)init {\n}\n" 7133 "@end"); 7134 verifyFormat("@implementation ObjcClass\n" 7135 "- (void)method;\n" 7136 "{}\n" 7137 "@end"); 7138 } 7139 7140 TEST_F(FormatTest, FormatObjCProtocol) { 7141 verifyFormat("@protocol Foo\n" 7142 "@property(weak) id delegate;\n" 7143 "- (NSUInteger)numberOfThings;\n" 7144 "@end"); 7145 7146 verifyFormat("@protocol MyProtocol <NSObject>\n" 7147 "- (NSUInteger)numberOfThings;\n" 7148 "@end"); 7149 7150 verifyGoogleFormat("@protocol MyProtocol<NSObject>\n" 7151 "- (NSUInteger)numberOfThings;\n" 7152 "@end"); 7153 7154 verifyFormat("@protocol Foo;\n" 7155 "@protocol Bar;\n"); 7156 7157 verifyFormat("@protocol Foo\n" 7158 "@end\n" 7159 "@protocol Bar\n" 7160 "@end"); 7161 7162 verifyFormat("@protocol myProtocol\n" 7163 "- (void)mandatoryWithInt:(int)i;\n" 7164 "@optional\n" 7165 "- (void)optional;\n" 7166 "@required\n" 7167 "- (void)required;\n" 7168 "@optional\n" 7169 "@property(assign) int madProp;\n" 7170 "@end\n"); 7171 7172 verifyFormat("@property(nonatomic, assign, readonly)\n" 7173 " int *looooooooooooooooooooooooooooongNumber;\n" 7174 "@property(nonatomic, assign, readonly)\n" 7175 " NSString *looooooooooooooooooooooooooooongName;"); 7176 7177 verifyFormat("@implementation PR18406\n" 7178 "}\n" 7179 "@end"); 7180 } 7181 7182 TEST_F(FormatTest, FormatObjCMethodDeclarations) { 7183 verifyFormat("- (void)doSomethingWith:(GTMFoo *)theFoo\n" 7184 " rect:(NSRect)theRect\n" 7185 " interval:(float)theInterval {\n" 7186 "}"); 7187 verifyFormat("- (void)shortf:(GTMFoo *)theFoo\n" 7188 " longKeyword:(NSRect)theRect\n" 7189 " evenLongerKeyword:(float)theInterval\n" 7190 " error:(NSError **)theError {\n" 7191 "}"); 7192 verifyFormat("- (instancetype)initXxxxxx:(id<x>)x\n" 7193 " y:(id<yyyyyyyyyyyyyyyyyyyy>)y\n" 7194 " NS_DESIGNATED_INITIALIZER;", 7195 getLLVMStyleWithColumns(60)); 7196 7197 // Continuation indent width should win over aligning colons if the function 7198 // name is long. 7199 FormatStyle continuationStyle = getGoogleStyle(); 7200 continuationStyle.ColumnLimit = 40; 7201 continuationStyle.IndentWrappedFunctionNames = true; 7202 verifyFormat("- (void)shortf:(GTMFoo *)theFoo\n" 7203 " dontAlignNamef:(NSRect)theRect {\n" 7204 "}", 7205 continuationStyle); 7206 7207 // Make sure we don't break aligning for short parameter names. 7208 verifyFormat("- (void)shortf:(GTMFoo *)theFoo\n" 7209 " aShortf:(NSRect)theRect {\n" 7210 "}", 7211 continuationStyle); 7212 } 7213 7214 TEST_F(FormatTest, FormatObjCMethodExpr) { 7215 verifyFormat("[foo bar:baz];"); 7216 verifyFormat("return [foo bar:baz];"); 7217 verifyFormat("return (a)[foo bar:baz];"); 7218 verifyFormat("f([foo bar:baz]);"); 7219 verifyFormat("f(2, [foo bar:baz]);"); 7220 verifyFormat("f(2, a ? b : c);"); 7221 verifyFormat("[[self initWithInt:4] bar:[baz quux:arrrr]];"); 7222 7223 // Unary operators. 7224 verifyFormat("int a = +[foo bar:baz];"); 7225 verifyFormat("int a = -[foo bar:baz];"); 7226 verifyFormat("int a = ![foo bar:baz];"); 7227 verifyFormat("int a = ~[foo bar:baz];"); 7228 verifyFormat("int a = ++[foo bar:baz];"); 7229 verifyFormat("int a = --[foo bar:baz];"); 7230 verifyFormat("int a = sizeof [foo bar:baz];"); 7231 verifyFormat("int a = alignof [foo bar:baz];", getGoogleStyle()); 7232 verifyFormat("int a = &[foo bar:baz];"); 7233 verifyFormat("int a = *[foo bar:baz];"); 7234 // FIXME: Make casts work, without breaking f()[4]. 7235 // verifyFormat("int a = (int)[foo bar:baz];"); 7236 // verifyFormat("return (int)[foo bar:baz];"); 7237 // verifyFormat("(void)[foo bar:baz];"); 7238 verifyFormat("return (MyType *)[self.tableView cellForRowAtIndexPath:cell];"); 7239 7240 // Binary operators. 7241 verifyFormat("[foo bar:baz], [foo bar:baz];"); 7242 verifyFormat("[foo bar:baz] = [foo bar:baz];"); 7243 verifyFormat("[foo bar:baz] *= [foo bar:baz];"); 7244 verifyFormat("[foo bar:baz] /= [foo bar:baz];"); 7245 verifyFormat("[foo bar:baz] %= [foo bar:baz];"); 7246 verifyFormat("[foo bar:baz] += [foo bar:baz];"); 7247 verifyFormat("[foo bar:baz] -= [foo bar:baz];"); 7248 verifyFormat("[foo bar:baz] <<= [foo bar:baz];"); 7249 verifyFormat("[foo bar:baz] >>= [foo bar:baz];"); 7250 verifyFormat("[foo bar:baz] &= [foo bar:baz];"); 7251 verifyFormat("[foo bar:baz] ^= [foo bar:baz];"); 7252 verifyFormat("[foo bar:baz] |= [foo bar:baz];"); 7253 verifyFormat("[foo bar:baz] ? [foo bar:baz] : [foo bar:baz];"); 7254 verifyFormat("[foo bar:baz] || [foo bar:baz];"); 7255 verifyFormat("[foo bar:baz] && [foo bar:baz];"); 7256 verifyFormat("[foo bar:baz] | [foo bar:baz];"); 7257 verifyFormat("[foo bar:baz] ^ [foo bar:baz];"); 7258 verifyFormat("[foo bar:baz] & [foo bar:baz];"); 7259 verifyFormat("[foo bar:baz] == [foo bar:baz];"); 7260 verifyFormat("[foo bar:baz] != [foo bar:baz];"); 7261 verifyFormat("[foo bar:baz] >= [foo bar:baz];"); 7262 verifyFormat("[foo bar:baz] <= [foo bar:baz];"); 7263 verifyFormat("[foo bar:baz] > [foo bar:baz];"); 7264 verifyFormat("[foo bar:baz] < [foo bar:baz];"); 7265 verifyFormat("[foo bar:baz] >> [foo bar:baz];"); 7266 verifyFormat("[foo bar:baz] << [foo bar:baz];"); 7267 verifyFormat("[foo bar:baz] - [foo bar:baz];"); 7268 verifyFormat("[foo bar:baz] + [foo bar:baz];"); 7269 verifyFormat("[foo bar:baz] * [foo bar:baz];"); 7270 verifyFormat("[foo bar:baz] / [foo bar:baz];"); 7271 verifyFormat("[foo bar:baz] % [foo bar:baz];"); 7272 // Whew! 7273 7274 verifyFormat("return in[42];"); 7275 verifyFormat("for (auto v : in[1]) {\n}"); 7276 verifyFormat("for (int i = 0; i < in[a]; ++i) {\n}"); 7277 verifyFormat("for (int i = 0; in[a] < i; ++i) {\n}"); 7278 verifyFormat("for (int i = 0; i < n; ++i, ++in[a]) {\n}"); 7279 verifyFormat("for (int i = 0; i < n; ++i, in[a]++) {\n}"); 7280 verifyFormat("for (int i = 0; i < f(in[a]); ++i, in[a]++) {\n}"); 7281 verifyFormat("for (id foo in [self getStuffFor:bla]) {\n" 7282 "}"); 7283 verifyFormat("[self aaaaa:MACRO(a, b:, c:)];"); 7284 verifyFormat("[self aaaaa:(1 + 2) bbbbb:3];"); 7285 verifyFormat("[self aaaaa:(Type)a bbbbb:3];"); 7286 7287 verifyFormat("[self stuffWithInt:(4 + 2) float:4.5];"); 7288 verifyFormat("[self stuffWithInt:a ? b : c float:4.5];"); 7289 verifyFormat("[self stuffWithInt:a ? [self foo:bar] : c];"); 7290 verifyFormat("[self stuffWithInt:a ? (e ? f : g) : c];"); 7291 verifyFormat("[cond ? obj1 : obj2 methodWithParam:param]"); 7292 verifyFormat("[button setAction:@selector(zoomOut:)];"); 7293 verifyFormat("[color getRed:&r green:&g blue:&b alpha:&a];"); 7294 7295 verifyFormat("arr[[self indexForFoo:a]];"); 7296 verifyFormat("throw [self errorFor:a];"); 7297 verifyFormat("@throw [self errorFor:a];"); 7298 7299 verifyFormat("[(id)foo bar:(id)baz quux:(id)snorf];"); 7300 verifyFormat("[(id)foo bar:(id) ? baz : quux];"); 7301 verifyFormat("4 > 4 ? (id)a : (id)baz;"); 7302 7303 // This tests that the formatter doesn't break after "backing" but before ":", 7304 // which would be at 80 columns. 7305 verifyFormat( 7306 "void f() {\n" 7307 " if ((self = [super initWithContentRect:contentRect\n" 7308 " styleMask:styleMask ?: otherMask\n" 7309 " backing:NSBackingStoreBuffered\n" 7310 " defer:YES]))"); 7311 7312 verifyFormat( 7313 "[foo checkThatBreakingAfterColonWorksOk:\n" 7314 " [bar ifItDoes:reduceOverallLineLengthLikeInThisCase]];"); 7315 7316 verifyFormat("[myObj short:arg1 // Force line break\n" 7317 " longKeyword:arg2 != nil ? arg2 : @\"longKeyword\"\n" 7318 " evenLongerKeyword:arg3 ?: @\"evenLongerKeyword\"\n" 7319 " error:arg4];"); 7320 verifyFormat( 7321 "void f() {\n" 7322 " popup_window_.reset([[RenderWidgetPopupWindow alloc]\n" 7323 " initWithContentRect:NSMakeRect(origin_global.x, origin_global.y,\n" 7324 " pos.width(), pos.height())\n" 7325 " styleMask:NSBorderlessWindowMask\n" 7326 " backing:NSBackingStoreBuffered\n" 7327 " defer:NO]);\n" 7328 "}"); 7329 verifyFormat( 7330 "void f() {\n" 7331 " popup_wdow_.reset([[RenderWidgetPopupWindow alloc]\n" 7332 " iniithContentRect:NSMakRet(origin_global.x, origin_global.y,\n" 7333 " pos.width(), pos.height())\n" 7334 " syeMask:NSBorderlessWindowMask\n" 7335 " bking:NSBackingStoreBuffered\n" 7336 " der:NO]);\n" 7337 "}", 7338 getLLVMStyleWithColumns(70)); 7339 verifyFormat( 7340 "void f() {\n" 7341 " popup_window_.reset([[RenderWidgetPopupWindow alloc]\n" 7342 " initWithContentRect:NSMakeRect(origin_global.x, origin_global.y,\n" 7343 " pos.width(), pos.height())\n" 7344 " styleMask:NSBorderlessWindowMask\n" 7345 " backing:NSBackingStoreBuffered\n" 7346 " defer:NO]);\n" 7347 "}", 7348 getChromiumStyle(FormatStyle::LK_Cpp)); 7349 verifyFormat("[contentsContainer replaceSubview:[subviews objectAtIndex:0]\n" 7350 " with:contentsNativeView];"); 7351 7352 verifyFormat( 7353 "[pboard addTypes:[NSArray arrayWithObject:kBookmarkButtonDragType]\n" 7354 " owner:nillllll];"); 7355 7356 verifyFormat( 7357 "[pboard setData:[NSData dataWithBytes:&button length:sizeof(button)]\n" 7358 " forType:kBookmarkButtonDragType];"); 7359 7360 verifyFormat("[defaultCenter addObserver:self\n" 7361 " selector:@selector(willEnterFullscreen)\n" 7362 " name:kWillEnterFullscreenNotification\n" 7363 " object:nil];"); 7364 verifyFormat("[image_rep drawInRect:drawRect\n" 7365 " fromRect:NSZeroRect\n" 7366 " operation:NSCompositeCopy\n" 7367 " fraction:1.0\n" 7368 " respectFlipped:NO\n" 7369 " hints:nil];"); 7370 verifyFormat("[aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 7371 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa];"); 7372 verifyFormat("[aaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaa)\n" 7373 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa];"); 7374 verifyFormat("[aaaaaaaaaaaaaaaaaaaaaaa.aaaaaaaa[aaaaaaaaaaaaaaaaaaaaa]\n" 7375 " aaaaaaaaaaaaaaaaaaaaaa];"); 7376 verifyFormat("[call aaaaaaaa.aaaaaa.aaaaaaaa.aaaaaaaa.aaaaaaaa.aaaaaaaa\n" 7377 " .aaaaaaaa];", // FIXME: Indentation seems off. 7378 getLLVMStyleWithColumns(60)); 7379 7380 verifyFormat( 7381 "scoped_nsobject<NSTextField> message(\n" 7382 " // The frame will be fixed up when |-setMessageText:| is called.\n" 7383 " [[NSTextField alloc] initWithFrame:NSMakeRect(0, 0, 0, 0)]);"); 7384 verifyFormat("[self aaaaaa:bbbbbbbbbbbbb\n" 7385 " aaaaaaaaaa:bbbbbbbbbbbbbbbbb\n" 7386 " aaaaa:bbbbbbbbbbb + bbbbbbbbbbbb\n" 7387 " aaaa:bbb];"); 7388 verifyFormat("[self param:function( //\n" 7389 " parameter)]"); 7390 verifyFormat( 7391 "[self aaaaaaaaaa:aaaaaaaaaaaaaaa | aaaaaaaaaaaaaaa | aaaaaaaaaaaaaaa |\n" 7392 " aaaaaaaaaaaaaaa | aaaaaaaaaaaaaaa | aaaaaaaaaaaaaaa |\n" 7393 " aaaaaaaaaaaaaaa | aaaaaaaaaaaaaaa];"); 7394 7395 // FIXME: This violates the column limit. 7396 verifyFormat( 7397 "[aaaaaaaaaaaaaaaaaaaaaaaaa\n" 7398 " aaaaaaaaaaaaaaaaa:aaaaaaaa\n" 7399 " aaa:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa];", 7400 getLLVMStyleWithColumns(60)); 7401 7402 // Variadic parameters. 7403 verifyFormat( 7404 "NSArray *myStrings = [NSArray stringarray:@\"a\", @\"b\", nil];"); 7405 verifyFormat( 7406 "[self aaaaaaaaaaaaa:aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaa,\n" 7407 " aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaa,\n" 7408 " aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaa];"); 7409 verifyFormat("[self // break\n" 7410 " a:a\n" 7411 " aaa:aaa];"); 7412 verifyFormat("bool a = ([aaaaaaaa aaaaa] == aaaaaaaaaaaaaaaaa ||\n" 7413 " [aaaaaaaa aaaaa] == aaaaaaaaaaaaaaaaaaaa);"); 7414 } 7415 7416 TEST_F(FormatTest, ObjCAt) { 7417 verifyFormat("@autoreleasepool"); 7418 verifyFormat("@catch"); 7419 verifyFormat("@class"); 7420 verifyFormat("@compatibility_alias"); 7421 verifyFormat("@defs"); 7422 verifyFormat("@dynamic"); 7423 verifyFormat("@encode"); 7424 verifyFormat("@end"); 7425 verifyFormat("@finally"); 7426 verifyFormat("@implementation"); 7427 verifyFormat("@import"); 7428 verifyFormat("@interface"); 7429 verifyFormat("@optional"); 7430 verifyFormat("@package"); 7431 verifyFormat("@private"); 7432 verifyFormat("@property"); 7433 verifyFormat("@protected"); 7434 verifyFormat("@protocol"); 7435 verifyFormat("@public"); 7436 verifyFormat("@required"); 7437 verifyFormat("@selector"); 7438 verifyFormat("@synchronized"); 7439 verifyFormat("@synthesize"); 7440 verifyFormat("@throw"); 7441 verifyFormat("@try"); 7442 7443 EXPECT_EQ("@interface", format("@ interface")); 7444 7445 // The precise formatting of this doesn't matter, nobody writes code like 7446 // this. 7447 verifyFormat("@ /*foo*/ interface"); 7448 } 7449 7450 TEST_F(FormatTest, ObjCSnippets) { 7451 verifyFormat("@autoreleasepool {\n" 7452 " foo();\n" 7453 "}"); 7454 verifyFormat("@class Foo, Bar;"); 7455 verifyFormat("@compatibility_alias AliasName ExistingClass;"); 7456 verifyFormat("@dynamic textColor;"); 7457 verifyFormat("char *buf1 = @encode(int *);"); 7458 verifyFormat("char *buf1 = @encode(typeof(4 * 5));"); 7459 verifyFormat("char *buf1 = @encode(int **);"); 7460 verifyFormat("Protocol *proto = @protocol(p1);"); 7461 verifyFormat("SEL s = @selector(foo:);"); 7462 verifyFormat("@synchronized(self) {\n" 7463 " f();\n" 7464 "}"); 7465 7466 verifyFormat("@synthesize dropArrowPosition = dropArrowPosition_;"); 7467 verifyGoogleFormat("@synthesize dropArrowPosition = dropArrowPosition_;"); 7468 7469 verifyFormat("@property(assign, nonatomic) CGFloat hoverAlpha;"); 7470 verifyFormat("@property(assign, getter=isEditable) BOOL editable;"); 7471 verifyGoogleFormat("@property(assign, getter=isEditable) BOOL editable;"); 7472 verifyFormat("@property (assign, getter=isEditable) BOOL editable;", 7473 getMozillaStyle()); 7474 verifyFormat("@property BOOL editable;", getMozillaStyle()); 7475 verifyFormat("@property (assign, getter=isEditable) BOOL editable;", 7476 getWebKitStyle()); 7477 verifyFormat("@property BOOL editable;", getWebKitStyle()); 7478 7479 verifyFormat("@import foo.bar;\n" 7480 "@import baz;"); 7481 } 7482 7483 TEST_F(FormatTest, ObjCForIn) { 7484 verifyFormat("- (void)test {\n" 7485 " for (NSString *n in arrayOfStrings) {\n" 7486 " foo(n);\n" 7487 " }\n" 7488 "}"); 7489 verifyFormat("- (void)test {\n" 7490 " for (NSString *n in (__bridge NSArray *)arrayOfStrings) {\n" 7491 " foo(n);\n" 7492 " }\n" 7493 "}"); 7494 } 7495 7496 TEST_F(FormatTest, ObjCLiterals) { 7497 verifyFormat("@\"String\""); 7498 verifyFormat("@1"); 7499 verifyFormat("@+4.8"); 7500 verifyFormat("@-4"); 7501 verifyFormat("@1LL"); 7502 verifyFormat("@.5"); 7503 verifyFormat("@'c'"); 7504 verifyFormat("@true"); 7505 7506 verifyFormat("NSNumber *smallestInt = @(-INT_MAX - 1);"); 7507 verifyFormat("NSNumber *piOverTwo = @(M_PI / 2);"); 7508 verifyFormat("NSNumber *favoriteColor = @(Green);"); 7509 verifyFormat("NSString *path = @(getenv(\"PATH\"));"); 7510 7511 verifyFormat("[dictionary setObject:@(1) forKey:@\"number\"];"); 7512 } 7513 7514 TEST_F(FormatTest, ObjCDictLiterals) { 7515 verifyFormat("@{"); 7516 verifyFormat("@{}"); 7517 verifyFormat("@{@\"one\" : @1}"); 7518 verifyFormat("return @{@\"one\" : @1;"); 7519 verifyFormat("@{@\"one\" : @1}"); 7520 7521 verifyFormat("@{@\"one\" : @{@2 : @1}}"); 7522 verifyFormat("@{\n" 7523 " @\"one\" : @{@2 : @1},\n" 7524 "}"); 7525 7526 verifyFormat("@{1 > 2 ? @\"one\" : @\"two\" : 1 > 2 ? @1 : @2}"); 7527 verifyIncompleteFormat("[self setDict:@{}"); 7528 verifyIncompleteFormat("[self setDict:@{@1 : @2}"); 7529 verifyFormat("NSLog(@\"%@\", @{@1 : @2, @2 : @3}[@1]);"); 7530 verifyFormat( 7531 "NSDictionary *masses = @{@\"H\" : @1.0078, @\"He\" : @4.0026};"); 7532 verifyFormat( 7533 "NSDictionary *settings = @{AVEncoderKey : @(AVAudioQualityMax)};"); 7534 7535 verifyFormat("NSDictionary *d = @{\n" 7536 " @\"nam\" : NSUserNam(),\n" 7537 " @\"dte\" : [NSDate date],\n" 7538 " @\"processInfo\" : [NSProcessInfo processInfo]\n" 7539 "};"); 7540 verifyFormat( 7541 "@{\n" 7542 " NSFontAttributeNameeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee : " 7543 "regularFont,\n" 7544 "};"); 7545 verifyGoogleFormat( 7546 "@{\n" 7547 " NSFontAttributeNameeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee : " 7548 "regularFont,\n" 7549 "};"); 7550 verifyFormat( 7551 "@{\n" 7552 " NSFontAttributeNameeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee :\n" 7553 " reeeeeeeeeeeeeeeeeeeeeeeegularFont,\n" 7554 "};"); 7555 7556 // We should try to be robust in case someone forgets the "@". 7557 verifyFormat("NSDictionary *d = {\n" 7558 " @\"nam\" : NSUserNam(),\n" 7559 " @\"dte\" : [NSDate date],\n" 7560 " @\"processInfo\" : [NSProcessInfo processInfo]\n" 7561 "};"); 7562 verifyFormat("NSMutableDictionary *dictionary =\n" 7563 " [NSMutableDictionary dictionaryWithDictionary:@{\n" 7564 " aaaaaaaaaaaaaaaaaaaaa : aaaaaaaaaaaaa,\n" 7565 " bbbbbbbbbbbbbbbbbb : bbbbb,\n" 7566 " cccccccccccccccc : ccccccccccccccc\n" 7567 " }];"); 7568 7569 // Ensure that casts before the key are kept on the same line as the key. 7570 verifyFormat( 7571 "NSDictionary *d = @{\n" 7572 " (aaaaaaaa id)aaaaaaaaa : (aaaaaaaa id)aaaaaaaaaaaaaaaaaaaaaaaa,\n" 7573 " (aaaaaaaa id)aaaaaaaaaaaaaa : (aaaaaaaa id)aaaaaaaaaaaaaa,\n" 7574 "};"); 7575 } 7576 7577 TEST_F(FormatTest, ObjCArrayLiterals) { 7578 verifyIncompleteFormat("@["); 7579 verifyFormat("@[]"); 7580 verifyFormat( 7581 "NSArray *array = @[ @\" Hey \", NSApp, [NSNumber numberWithInt:42] ];"); 7582 verifyFormat("return @[ @3, @[], @[ @4, @5 ] ];"); 7583 verifyFormat("NSArray *array = @[ [foo description] ];"); 7584 7585 verifyFormat( 7586 "NSArray *some_variable = @[\n" 7587 " aaaa == bbbbbbbbbbb ? @\"aaaaaaaaaaaa\" : @\"aaaaaaaaaaaaaa\",\n" 7588 " @\"aaaaaaaaaaaaaaaaa\",\n" 7589 " @\"aaaaaaaaaaaaaaaaa\",\n" 7590 " @\"aaaaaaaaaaaaaaaaa\"\n" 7591 "];"); 7592 verifyFormat("NSArray *some_variable = @[\n" 7593 " @\"aaaaaaaaaaaaaaaaa\",\n" 7594 " @\"aaaaaaaaaaaaaaaaa\",\n" 7595 " @\"aaaaaaaaaaaaaaaaa\",\n" 7596 " @\"aaaaaaaaaaaaaaaaa\",\n" 7597 "];"); 7598 verifyGoogleFormat("NSArray *some_variable = @[\n" 7599 " @\"aaaaaaaaaaaaaaaaa\",\n" 7600 " @\"aaaaaaaaaaaaaaaaa\",\n" 7601 " @\"aaaaaaaaaaaaaaaaa\",\n" 7602 " @\"aaaaaaaaaaaaaaaaa\"\n" 7603 "];"); 7604 verifyFormat("NSArray *array = @[\n" 7605 " @\"a\",\n" 7606 " @\"a\",\n" // Trailing comma -> one per line. 7607 "];"); 7608 7609 // We should try to be robust in case someone forgets the "@". 7610 verifyFormat("NSArray *some_variable = [\n" 7611 " @\"aaaaaaaaaaaaaaaaa\",\n" 7612 " @\"aaaaaaaaaaaaaaaaa\",\n" 7613 " @\"aaaaaaaaaaaaaaaaa\",\n" 7614 " @\"aaaaaaaaaaaaaaaaa\",\n" 7615 "];"); 7616 verifyFormat( 7617 "- (NSAttributedString *)attributedStringForSegment:(NSUInteger)segment\n" 7618 " index:(NSUInteger)index\n" 7619 " nonDigitAttributes:\n" 7620 " (NSDictionary *)noDigitAttributes;"); 7621 verifyFormat("[someFunction someLooooooooooooongParameter:@[\n" 7622 " NSBundle.mainBundle.infoDictionary[@\"a\"]\n" 7623 "]];"); 7624 } 7625 7626 TEST_F(FormatTest, BreaksStringLiterals) { 7627 EXPECT_EQ("\"some text \"\n" 7628 "\"other\";", 7629 format("\"some text other\";", getLLVMStyleWithColumns(12))); 7630 EXPECT_EQ("\"some text \"\n" 7631 "\"other\";", 7632 format("\\\n\"some text other\";", getLLVMStyleWithColumns(12))); 7633 EXPECT_EQ( 7634 "#define A \\\n" 7635 " \"some \" \\\n" 7636 " \"text \" \\\n" 7637 " \"other\";", 7638 format("#define A \"some text other\";", getLLVMStyleWithColumns(12))); 7639 EXPECT_EQ( 7640 "#define A \\\n" 7641 " \"so \" \\\n" 7642 " \"text \" \\\n" 7643 " \"other\";", 7644 format("#define A \"so text other\";", getLLVMStyleWithColumns(12))); 7645 7646 EXPECT_EQ("\"some text\"", 7647 format("\"some text\"", getLLVMStyleWithColumns(1))); 7648 EXPECT_EQ("\"some text\"", 7649 format("\"some text\"", getLLVMStyleWithColumns(11))); 7650 EXPECT_EQ("\"some \"\n" 7651 "\"text\"", 7652 format("\"some text\"", getLLVMStyleWithColumns(10))); 7653 EXPECT_EQ("\"some \"\n" 7654 "\"text\"", 7655 format("\"some text\"", getLLVMStyleWithColumns(7))); 7656 EXPECT_EQ("\"some\"\n" 7657 "\" tex\"\n" 7658 "\"t\"", 7659 format("\"some text\"", getLLVMStyleWithColumns(6))); 7660 EXPECT_EQ("\"some\"\n" 7661 "\" tex\"\n" 7662 "\" and\"", 7663 format("\"some tex and\"", getLLVMStyleWithColumns(6))); 7664 EXPECT_EQ("\"some\"\n" 7665 "\"/tex\"\n" 7666 "\"/and\"", 7667 format("\"some/tex/and\"", getLLVMStyleWithColumns(6))); 7668 7669 EXPECT_EQ("variable =\n" 7670 " \"long string \"\n" 7671 " \"literal\";", 7672 format("variable = \"long string literal\";", 7673 getLLVMStyleWithColumns(20))); 7674 7675 EXPECT_EQ("variable = f(\n" 7676 " \"long string \"\n" 7677 " \"literal\",\n" 7678 " short,\n" 7679 " loooooooooooooooooooong);", 7680 format("variable = f(\"long string literal\", short, " 7681 "loooooooooooooooooooong);", 7682 getLLVMStyleWithColumns(20))); 7683 7684 EXPECT_EQ( 7685 "f(g(\"long string \"\n" 7686 " \"literal\"),\n" 7687 " b);", 7688 format("f(g(\"long string literal\"), b);", getLLVMStyleWithColumns(20))); 7689 EXPECT_EQ("f(g(\"long string \"\n" 7690 " \"literal\",\n" 7691 " a),\n" 7692 " b);", 7693 format("f(g(\"long string literal\", a), b);", 7694 getLLVMStyleWithColumns(20))); 7695 EXPECT_EQ( 7696 "f(\"one two\".split(\n" 7697 " variable));", 7698 format("f(\"one two\".split(variable));", getLLVMStyleWithColumns(20))); 7699 EXPECT_EQ("f(\"one two three four five six \"\n" 7700 " \"seven\".split(\n" 7701 " really_looooong_variable));", 7702 format("f(\"one two three four five six seven\"." 7703 "split(really_looooong_variable));", 7704 getLLVMStyleWithColumns(33))); 7705 7706 EXPECT_EQ("f(\"some \"\n" 7707 " \"text\",\n" 7708 " other);", 7709 format("f(\"some text\", other);", getLLVMStyleWithColumns(10))); 7710 7711 // Only break as a last resort. 7712 verifyFormat( 7713 "aaaaaaaaaaaaaaaaaaaa(\n" 7714 " aaaaaaaaaaaaaaaaaaaa,\n" 7715 " aaaaaa(\"aaa aaaaa aaa aaa aaaaa aaa aaaaa aaa aaa aaaaaa\"));"); 7716 7717 EXPECT_EQ("\"splitmea\"\n" 7718 "\"trandomp\"\n" 7719 "\"oint\"", 7720 format("\"splitmeatrandompoint\"", getLLVMStyleWithColumns(10))); 7721 7722 EXPECT_EQ("\"split/\"\n" 7723 "\"pathat/\"\n" 7724 "\"slashes\"", 7725 format("\"split/pathat/slashes\"", getLLVMStyleWithColumns(10))); 7726 7727 EXPECT_EQ("\"split/\"\n" 7728 "\"pathat/\"\n" 7729 "\"slashes\"", 7730 format("\"split/pathat/slashes\"", getLLVMStyleWithColumns(10))); 7731 EXPECT_EQ("\"split at \"\n" 7732 "\"spaces/at/\"\n" 7733 "\"slashes.at.any$\"\n" 7734 "\"non-alphanumeric%\"\n" 7735 "\"1111111111characte\"\n" 7736 "\"rs\"", 7737 format("\"split at " 7738 "spaces/at/" 7739 "slashes.at." 7740 "any$non-" 7741 "alphanumeric%" 7742 "1111111111characte" 7743 "rs\"", 7744 getLLVMStyleWithColumns(20))); 7745 7746 // Verify that splitting the strings understands 7747 // Style::AlwaysBreakBeforeMultilineStrings. 7748 EXPECT_EQ( 7749 "aaaaaaaaaaaa(\n" 7750 " \"aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaa \"\n" 7751 " \"aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaa\");", 7752 format("aaaaaaaaaaaa(\"aaaaaaaaaaaaaaaaaaaaaaaaaa " 7753 "aaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaa " 7754 "aaaaaaaaaaaaaaaaaaaaaa\");", 7755 getGoogleStyle())); 7756 EXPECT_EQ("return \"aaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaa \"\n" 7757 " \"aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaa\";", 7758 format("return \"aaaaaaaaaaaaaaaaaaaaaa " 7759 "aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaa " 7760 "aaaaaaaaaaaaaaaaaaaaaa\";", 7761 getGoogleStyle())); 7762 EXPECT_EQ("llvm::outs() << \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa \"\n" 7763 " \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\";", 7764 format("llvm::outs() << " 7765 "\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaa" 7766 "aaaaaaaaaaaaaaaaaaa\";")); 7767 EXPECT_EQ("ffff(\n" 7768 " {\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa \"\n" 7769 " \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"});", 7770 format("ffff({\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa " 7771 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"});", 7772 getGoogleStyle())); 7773 7774 FormatStyle AlignLeft = getLLVMStyleWithColumns(12); 7775 AlignLeft.AlignEscapedNewlinesLeft = true; 7776 EXPECT_EQ("#define A \\\n" 7777 " \"some \" \\\n" 7778 " \"text \" \\\n" 7779 " \"other\";", 7780 format("#define A \"some text other\";", AlignLeft)); 7781 } 7782 7783 TEST_F(FormatTest, FullyRemoveEmptyLines) { 7784 FormatStyle NoEmptyLines = getLLVMStyleWithColumns(80); 7785 NoEmptyLines.MaxEmptyLinesToKeep = 0; 7786 EXPECT_EQ("int i = a(b());", 7787 format("int i=a(\n\n b(\n\n\n )\n\n);", NoEmptyLines)); 7788 } 7789 7790 TEST_F(FormatTest, BreaksStringLiteralsWithTabs) { 7791 EXPECT_EQ( 7792 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" 7793 "(\n" 7794 " \"x\t\");", 7795 format("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" 7796 "aaaaaaa(" 7797 "\"x\t\");")); 7798 } 7799 7800 TEST_F(FormatTest, BreaksWideAndNSStringLiterals) { 7801 EXPECT_EQ( 7802 "u8\"utf8 string \"\n" 7803 "u8\"literal\";", 7804 format("u8\"utf8 string literal\";", getGoogleStyleWithColumns(16))); 7805 EXPECT_EQ( 7806 "u\"utf16 string \"\n" 7807 "u\"literal\";", 7808 format("u\"utf16 string literal\";", getGoogleStyleWithColumns(16))); 7809 EXPECT_EQ( 7810 "U\"utf32 string \"\n" 7811 "U\"literal\";", 7812 format("U\"utf32 string literal\";", getGoogleStyleWithColumns(16))); 7813 EXPECT_EQ("L\"wide string \"\n" 7814 "L\"literal\";", 7815 format("L\"wide string literal\";", getGoogleStyleWithColumns(16))); 7816 EXPECT_EQ("@\"NSString \"\n" 7817 "@\"literal\";", 7818 format("@\"NSString literal\";", getGoogleStyleWithColumns(19))); 7819 7820 // This input makes clang-format try to split the incomplete unicode escape 7821 // sequence, which used to lead to a crasher. 7822 verifyNoCrash( 7823 "aaaaaaaaaaaaaaaaaaaa = L\"\\udff\"'; // aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 7824 getLLVMStyleWithColumns(60)); 7825 } 7826 7827 TEST_F(FormatTest, DoesNotBreakRawStringLiterals) { 7828 FormatStyle Style = getGoogleStyleWithColumns(15); 7829 EXPECT_EQ("R\"x(raw literal)x\";", format("R\"x(raw literal)x\";", Style)); 7830 EXPECT_EQ("uR\"x(raw literal)x\";", format("uR\"x(raw literal)x\";", Style)); 7831 EXPECT_EQ("LR\"x(raw literal)x\";", format("LR\"x(raw literal)x\";", Style)); 7832 EXPECT_EQ("UR\"x(raw literal)x\";", format("UR\"x(raw literal)x\";", Style)); 7833 EXPECT_EQ("u8R\"x(raw literal)x\";", 7834 format("u8R\"x(raw literal)x\";", Style)); 7835 } 7836 7837 TEST_F(FormatTest, BreaksStringLiteralsWithin_TMacro) { 7838 FormatStyle Style = getLLVMStyleWithColumns(20); 7839 EXPECT_EQ( 7840 "_T(\"aaaaaaaaaaaaaa\")\n" 7841 "_T(\"aaaaaaaaaaaaaa\")\n" 7842 "_T(\"aaaaaaaaaaaa\")", 7843 format(" _T(\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\")", Style)); 7844 EXPECT_EQ("f(x, _T(\"aaaaaaaaa\")\n" 7845 " _T(\"aaaaaa\"),\n" 7846 " z);", 7847 format("f(x, _T(\"aaaaaaaaaaaaaaa\"), z);", Style)); 7848 7849 // FIXME: Handle embedded spaces in one iteration. 7850 // EXPECT_EQ("_T(\"aaaaaaaaaaaaa\")\n" 7851 // "_T(\"aaaaaaaaaaaaa\")\n" 7852 // "_T(\"aaaaaaaaaaaaa\")\n" 7853 // "_T(\"a\")", 7854 // format(" _T ( \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\" )", 7855 // getLLVMStyleWithColumns(20))); 7856 EXPECT_EQ( 7857 "_T ( \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\" )", 7858 format(" _T ( \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\" )", Style)); 7859 EXPECT_EQ("f(\n" 7860 "#if !TEST\n" 7861 " _T(\"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXn\")\n" 7862 "#endif\n" 7863 " );", 7864 format("f(\n" 7865 "#if !TEST\n" 7866 "_T(\"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXn\")\n" 7867 "#endif\n" 7868 ");")); 7869 EXPECT_EQ("f(\n" 7870 "\n" 7871 " _T(\"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXn\"));", 7872 format("f(\n" 7873 "\n" 7874 "_T(\"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXn\"));")); 7875 } 7876 7877 TEST_F(FormatTest, DontSplitStringLiteralsWithEscapedNewlines) { 7878 EXPECT_EQ( 7879 "aaaaaaaaaaa = \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 7880 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 7881 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\";", 7882 format("aaaaaaaaaaa = \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 7883 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 7884 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\";")); 7885 } 7886 7887 TEST_F(FormatTest, CountsCharactersInMultilineRawStringLiterals) { 7888 EXPECT_EQ("f(g(R\"x(raw literal)x\", a), b);", 7889 format("f(g(R\"x(raw literal)x\", a), b);", getGoogleStyle())); 7890 EXPECT_EQ("fffffffffff(g(R\"x(\n" 7891 "multiline raw string literal xxxxxxxxxxxxxx\n" 7892 ")x\",\n" 7893 " a),\n" 7894 " b);", 7895 format("fffffffffff(g(R\"x(\n" 7896 "multiline raw string literal xxxxxxxxxxxxxx\n" 7897 ")x\", a), b);", 7898 getGoogleStyleWithColumns(20))); 7899 EXPECT_EQ("fffffffffff(\n" 7900 " g(R\"x(qqq\n" 7901 "multiline raw string literal xxxxxxxxxxxxxx\n" 7902 ")x\",\n" 7903 " a),\n" 7904 " b);", 7905 format("fffffffffff(g(R\"x(qqq\n" 7906 "multiline raw string literal xxxxxxxxxxxxxx\n" 7907 ")x\", a), b);", 7908 getGoogleStyleWithColumns(20))); 7909 7910 EXPECT_EQ("fffffffffff(R\"x(\n" 7911 "multiline raw string literal xxxxxxxxxxxxxx\n" 7912 ")x\");", 7913 format("fffffffffff(R\"x(\n" 7914 "multiline raw string literal xxxxxxxxxxxxxx\n" 7915 ")x\");", 7916 getGoogleStyleWithColumns(20))); 7917 EXPECT_EQ("fffffffffff(R\"x(\n" 7918 "multiline raw string literal xxxxxxxxxxxxxx\n" 7919 ")x\" + bbbbbb);", 7920 format("fffffffffff(R\"x(\n" 7921 "multiline raw string literal xxxxxxxxxxxxxx\n" 7922 ")x\" + bbbbbb);", 7923 getGoogleStyleWithColumns(20))); 7924 EXPECT_EQ("fffffffffff(\n" 7925 " R\"x(\n" 7926 "multiline raw string literal xxxxxxxxxxxxxx\n" 7927 ")x\" +\n" 7928 " bbbbbb);", 7929 format("fffffffffff(\n" 7930 " R\"x(\n" 7931 "multiline raw string literal xxxxxxxxxxxxxx\n" 7932 ")x\" + bbbbbb);", 7933 getGoogleStyleWithColumns(20))); 7934 } 7935 7936 TEST_F(FormatTest, SkipsUnknownStringLiterals) { 7937 verifyFormat("string a = \"unterminated;"); 7938 EXPECT_EQ("function(\"unterminated,\n" 7939 " OtherParameter);", 7940 format("function( \"unterminated,\n" 7941 " OtherParameter);")); 7942 } 7943 7944 TEST_F(FormatTest, DoesNotTryToParseUDLiteralsInPreCpp11Code) { 7945 FormatStyle Style = getLLVMStyle(); 7946 Style.Standard = FormatStyle::LS_Cpp03; 7947 EXPECT_EQ("#define x(_a) printf(\"foo\" _a);", 7948 format("#define x(_a) printf(\"foo\"_a);", Style)); 7949 } 7950 7951 TEST_F(FormatTest, UnderstandsCpp1y) { verifyFormat("int bi{1'000'000};"); } 7952 7953 TEST_F(FormatTest, BreakStringLiteralsBeforeUnbreakableTokenSequence) { 7954 EXPECT_EQ("someFunction(\"aaabbbcccd\"\n" 7955 " \"ddeeefff\");", 7956 format("someFunction(\"aaabbbcccdddeeefff\");", 7957 getLLVMStyleWithColumns(25))); 7958 EXPECT_EQ("someFunction1234567890(\n" 7959 " \"aaabbbcccdddeeefff\");", 7960 format("someFunction1234567890(\"aaabbbcccdddeeefff\");", 7961 getLLVMStyleWithColumns(26))); 7962 EXPECT_EQ("someFunction1234567890(\n" 7963 " \"aaabbbcccdddeeeff\"\n" 7964 " \"f\");", 7965 format("someFunction1234567890(\"aaabbbcccdddeeefff\");", 7966 getLLVMStyleWithColumns(25))); 7967 EXPECT_EQ("someFunction1234567890(\n" 7968 " \"aaabbbcccdddeeeff\"\n" 7969 " \"f\");", 7970 format("someFunction1234567890(\"aaabbbcccdddeeefff\");", 7971 getLLVMStyleWithColumns(24))); 7972 EXPECT_EQ("someFunction(\"aaabbbcc \"\n" 7973 " \"ddde \"\n" 7974 " \"efff\");", 7975 format("someFunction(\"aaabbbcc ddde efff\");", 7976 getLLVMStyleWithColumns(25))); 7977 EXPECT_EQ("someFunction(\"aaabbbccc \"\n" 7978 " \"ddeeefff\");", 7979 format("someFunction(\"aaabbbccc ddeeefff\");", 7980 getLLVMStyleWithColumns(25))); 7981 EXPECT_EQ("someFunction1234567890(\n" 7982 " \"aaabb \"\n" 7983 " \"cccdddeeefff\");", 7984 format("someFunction1234567890(\"aaabb cccdddeeefff\");", 7985 getLLVMStyleWithColumns(25))); 7986 EXPECT_EQ("#define A \\\n" 7987 " string s = \\\n" 7988 " \"123456789\" \\\n" 7989 " \"0\"; \\\n" 7990 " int i;", 7991 format("#define A string s = \"1234567890\"; int i;", 7992 getLLVMStyleWithColumns(20))); 7993 // FIXME: Put additional penalties on breaking at non-whitespace locations. 7994 EXPECT_EQ("someFunction(\"aaabbbcc \"\n" 7995 " \"dddeeeff\"\n" 7996 " \"f\");", 7997 format("someFunction(\"aaabbbcc dddeeefff\");", 7998 getLLVMStyleWithColumns(25))); 7999 } 8000 8001 TEST_F(FormatTest, DoNotBreakStringLiteralsInEscapeSequence) { 8002 EXPECT_EQ("\"\\a\"", format("\"\\a\"", getLLVMStyleWithColumns(3))); 8003 EXPECT_EQ("\"\\\"", format("\"\\\"", getLLVMStyleWithColumns(2))); 8004 EXPECT_EQ("\"test\"\n" 8005 "\"\\n\"", 8006 format("\"test\\n\"", getLLVMStyleWithColumns(7))); 8007 EXPECT_EQ("\"tes\\\\\"\n" 8008 "\"n\"", 8009 format("\"tes\\\\n\"", getLLVMStyleWithColumns(7))); 8010 EXPECT_EQ("\"\\\\\\\\\"\n" 8011 "\"\\n\"", 8012 format("\"\\\\\\\\\\n\"", getLLVMStyleWithColumns(7))); 8013 EXPECT_EQ("\"\\uff01\"", format("\"\\uff01\"", getLLVMStyleWithColumns(7))); 8014 EXPECT_EQ("\"\\uff01\"\n" 8015 "\"test\"", 8016 format("\"\\uff01test\"", getLLVMStyleWithColumns(8))); 8017 EXPECT_EQ("\"\\Uff01ff02\"", 8018 format("\"\\Uff01ff02\"", getLLVMStyleWithColumns(11))); 8019 EXPECT_EQ("\"\\x000000000001\"\n" 8020 "\"next\"", 8021 format("\"\\x000000000001next\"", getLLVMStyleWithColumns(16))); 8022 EXPECT_EQ("\"\\x000000000001next\"", 8023 format("\"\\x000000000001next\"", getLLVMStyleWithColumns(15))); 8024 EXPECT_EQ("\"\\x000000000001\"", 8025 format("\"\\x000000000001\"", getLLVMStyleWithColumns(7))); 8026 EXPECT_EQ("\"test\"\n" 8027 "\"\\000000\"\n" 8028 "\"000001\"", 8029 format("\"test\\000000000001\"", getLLVMStyleWithColumns(9))); 8030 EXPECT_EQ("\"test\\000\"\n" 8031 "\"00000000\"\n" 8032 "\"1\"", 8033 format("\"test\\000000000001\"", getLLVMStyleWithColumns(10))); 8034 } 8035 8036 TEST_F(FormatTest, DoNotCreateUnreasonableUnwrappedLines) { 8037 verifyFormat("void f() {\n" 8038 " return g() {}\n" 8039 " void h() {}"); 8040 verifyFormat("int a[] = {void forgot_closing_brace(){f();\n" 8041 "g();\n" 8042 "}"); 8043 } 8044 8045 TEST_F(FormatTest, DoNotPrematurelyEndUnwrappedLineForReturnStatements) { 8046 verifyFormat( 8047 "void f() { return C{param1, param2}.SomeCall(param1, param2); }"); 8048 } 8049 8050 TEST_F(FormatTest, FormatsClosingBracesInEmptyNestedBlocks) { 8051 verifyFormat("class X {\n" 8052 " void f() {\n" 8053 " }\n" 8054 "};", 8055 getLLVMStyleWithColumns(12)); 8056 } 8057 8058 TEST_F(FormatTest, ConfigurableIndentWidth) { 8059 FormatStyle EightIndent = getLLVMStyleWithColumns(18); 8060 EightIndent.IndentWidth = 8; 8061 EightIndent.ContinuationIndentWidth = 8; 8062 verifyFormat("void f() {\n" 8063 " someFunction();\n" 8064 " if (true) {\n" 8065 " f();\n" 8066 " }\n" 8067 "}", 8068 EightIndent); 8069 verifyFormat("class X {\n" 8070 " void f() {\n" 8071 " }\n" 8072 "};", 8073 EightIndent); 8074 verifyFormat("int x[] = {\n" 8075 " call(),\n" 8076 " call()};", 8077 EightIndent); 8078 } 8079 8080 TEST_F(FormatTest, ConfigurableFunctionDeclarationIndentAfterType) { 8081 verifyFormat("double\n" 8082 "f();", 8083 getLLVMStyleWithColumns(8)); 8084 } 8085 8086 TEST_F(FormatTest, ConfigurableUseOfTab) { 8087 FormatStyle Tab = getLLVMStyleWithColumns(42); 8088 Tab.IndentWidth = 8; 8089 Tab.UseTab = FormatStyle::UT_Always; 8090 Tab.AlignEscapedNewlinesLeft = true; 8091 8092 EXPECT_EQ("if (aaaaaaaa && // q\n" 8093 " bb)\t\t// w\n" 8094 "\t;", 8095 format("if (aaaaaaaa &&// q\n" 8096 "bb)// w\n" 8097 ";", 8098 Tab)); 8099 EXPECT_EQ("if (aaa && bbb) // w\n" 8100 "\t;", 8101 format("if(aaa&&bbb)// w\n" 8102 ";", 8103 Tab)); 8104 8105 verifyFormat("class X {\n" 8106 "\tvoid f() {\n" 8107 "\t\tsomeFunction(parameter1,\n" 8108 "\t\t\t parameter2);\n" 8109 "\t}\n" 8110 "};", 8111 Tab); 8112 verifyFormat("#define A \\\n" 8113 "\tvoid f() { \\\n" 8114 "\t\tsomeFunction( \\\n" 8115 "\t\t parameter1, \\\n" 8116 "\t\t parameter2); \\\n" 8117 "\t}", 8118 Tab); 8119 8120 Tab.TabWidth = 4; 8121 Tab.IndentWidth = 8; 8122 verifyFormat("class TabWidth4Indent8 {\n" 8123 "\t\tvoid f() {\n" 8124 "\t\t\t\tsomeFunction(parameter1,\n" 8125 "\t\t\t\t\t\t\t parameter2);\n" 8126 "\t\t}\n" 8127 "};", 8128 Tab); 8129 8130 Tab.TabWidth = 4; 8131 Tab.IndentWidth = 4; 8132 verifyFormat("class TabWidth4Indent4 {\n" 8133 "\tvoid f() {\n" 8134 "\t\tsomeFunction(parameter1,\n" 8135 "\t\t\t\t\t parameter2);\n" 8136 "\t}\n" 8137 "};", 8138 Tab); 8139 8140 Tab.TabWidth = 8; 8141 Tab.IndentWidth = 4; 8142 verifyFormat("class TabWidth8Indent4 {\n" 8143 " void f() {\n" 8144 "\tsomeFunction(parameter1,\n" 8145 "\t\t parameter2);\n" 8146 " }\n" 8147 "};", 8148 Tab); 8149 8150 Tab.TabWidth = 8; 8151 Tab.IndentWidth = 8; 8152 EXPECT_EQ("/*\n" 8153 "\t a\t\tcomment\n" 8154 "\t in multiple lines\n" 8155 " */", 8156 format(" /*\t \t \n" 8157 " \t \t a\t\tcomment\t \t\n" 8158 " \t \t in multiple lines\t\n" 8159 " \t */", 8160 Tab)); 8161 8162 Tab.UseTab = FormatStyle::UT_ForIndentation; 8163 verifyFormat("{\n" 8164 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8165 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8166 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8167 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8168 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8169 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8170 "};", 8171 Tab); 8172 verifyFormat("enum A {\n" 8173 "\ta1, // Force multiple lines\n" 8174 "\ta2,\n" 8175 "\ta3\n" 8176 "};", 8177 Tab); 8178 EXPECT_EQ("if (aaaaaaaa && // q\n" 8179 " bb) // w\n" 8180 "\t;", 8181 format("if (aaaaaaaa &&// q\n" 8182 "bb)// w\n" 8183 ";", 8184 Tab)); 8185 verifyFormat("class X {\n" 8186 "\tvoid f() {\n" 8187 "\t\tsomeFunction(parameter1,\n" 8188 "\t\t parameter2);\n" 8189 "\t}\n" 8190 "};", 8191 Tab); 8192 verifyFormat("{\n" 8193 "\tQ(\n" 8194 "\t {\n" 8195 "\t\t int a;\n" 8196 "\t\t someFunction(aaaaaaaa,\n" 8197 "\t\t bbbbbbb);\n" 8198 "\t },\n" 8199 "\t p);\n" 8200 "}", 8201 Tab); 8202 EXPECT_EQ("{\n" 8203 "\t/* aaaa\n" 8204 "\t bbbb */\n" 8205 "}", 8206 format("{\n" 8207 "/* aaaa\n" 8208 " bbbb */\n" 8209 "}", 8210 Tab)); 8211 EXPECT_EQ("{\n" 8212 "\t/*\n" 8213 "\t aaaaaaaaaaaaaaaaaaaaaaaaaa\n" 8214 "\t bbbbbbbbbbbbb\n" 8215 "\t*/\n" 8216 "}", 8217 format("{\n" 8218 "/*\n" 8219 " aaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbb\n" 8220 "*/\n" 8221 "}", 8222 Tab)); 8223 EXPECT_EQ("{\n" 8224 "\t// aaaaaaaaaaaaaaaaaaaaaaaaaa\n" 8225 "\t// bbbbbbbbbbbbb\n" 8226 "}", 8227 format("{\n" 8228 "\t// aaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbb\n" 8229 "}", 8230 Tab)); 8231 EXPECT_EQ("{\n" 8232 "\t/*\n" 8233 "\t aaaaaaaaaaaaaaaaaaaaaaaaaa\n" 8234 "\t bbbbbbbbbbbbb\n" 8235 "\t*/\n" 8236 "}", 8237 format("{\n" 8238 "\t/*\n" 8239 "\t aaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbb\n" 8240 "\t*/\n" 8241 "}", 8242 Tab)); 8243 EXPECT_EQ("{\n" 8244 "\t/*\n" 8245 "\n" 8246 "\t*/\n" 8247 "}", 8248 format("{\n" 8249 "\t/*\n" 8250 "\n" 8251 "\t*/\n" 8252 "}", 8253 Tab)); 8254 EXPECT_EQ("{\n" 8255 "\t/*\n" 8256 " asdf\n" 8257 "\t*/\n" 8258 "}", 8259 format("{\n" 8260 "\t/*\n" 8261 " asdf\n" 8262 "\t*/\n" 8263 "}", 8264 Tab)); 8265 8266 Tab.UseTab = FormatStyle::UT_Never; 8267 EXPECT_EQ("/*\n" 8268 " a\t\tcomment\n" 8269 " in multiple lines\n" 8270 " */", 8271 format(" /*\t \t \n" 8272 " \t \t a\t\tcomment\t \t\n" 8273 " \t \t in multiple lines\t\n" 8274 " \t */", 8275 Tab)); 8276 EXPECT_EQ("/* some\n" 8277 " comment */", 8278 format(" \t \t /* some\n" 8279 " \t \t comment */", 8280 Tab)); 8281 EXPECT_EQ("int a; /* some\n" 8282 " comment */", 8283 format(" \t \t int a; /* some\n" 8284 " \t \t comment */", 8285 Tab)); 8286 8287 EXPECT_EQ("int a; /* some\n" 8288 "comment */", 8289 format(" \t \t int\ta; /* some\n" 8290 " \t \t comment */", 8291 Tab)); 8292 EXPECT_EQ("f(\"\t\t\"); /* some\n" 8293 " comment */", 8294 format(" \t \t f(\"\t\t\"); /* some\n" 8295 " \t \t comment */", 8296 Tab)); 8297 EXPECT_EQ("{\n" 8298 " /*\n" 8299 " * Comment\n" 8300 " */\n" 8301 " int i;\n" 8302 "}", 8303 format("{\n" 8304 "\t/*\n" 8305 "\t * Comment\n" 8306 "\t */\n" 8307 "\t int i;\n" 8308 "}")); 8309 } 8310 8311 TEST_F(FormatTest, CalculatesOriginalColumn) { 8312 EXPECT_EQ("\"qqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 8313 "q\"; /* some\n" 8314 " comment */", 8315 format(" \"qqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 8316 "q\"; /* some\n" 8317 " comment */", 8318 getLLVMStyle())); 8319 EXPECT_EQ("// qqqqqqqqqqqqqqqqqqqqqqqqqq\n" 8320 "/* some\n" 8321 " comment */", 8322 format("// qqqqqqqqqqqqqqqqqqqqqqqqqq\n" 8323 " /* some\n" 8324 " comment */", 8325 getLLVMStyle())); 8326 EXPECT_EQ("// qqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 8327 "qqq\n" 8328 "/* some\n" 8329 " comment */", 8330 format("// qqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 8331 "qqq\n" 8332 " /* some\n" 8333 " comment */", 8334 getLLVMStyle())); 8335 EXPECT_EQ("inttt qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 8336 "wwww; /* some\n" 8337 " comment */", 8338 format(" inttt qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 8339 "wwww; /* some\n" 8340 " comment */", 8341 getLLVMStyle())); 8342 } 8343 8344 TEST_F(FormatTest, ConfigurableSpaceBeforeParens) { 8345 FormatStyle NoSpace = getLLVMStyle(); 8346 NoSpace.SpaceBeforeParens = FormatStyle::SBPO_Never; 8347 8348 verifyFormat("while(true)\n" 8349 " continue;", 8350 NoSpace); 8351 verifyFormat("for(;;)\n" 8352 " continue;", 8353 NoSpace); 8354 verifyFormat("if(true)\n" 8355 " f();\n" 8356 "else if(true)\n" 8357 " f();", 8358 NoSpace); 8359 verifyFormat("do {\n" 8360 " do_something();\n" 8361 "} while(something());", 8362 NoSpace); 8363 verifyFormat("switch(x) {\n" 8364 "default:\n" 8365 " break;\n" 8366 "}", 8367 NoSpace); 8368 verifyFormat("auto i = std::make_unique<int>(5);", NoSpace); 8369 verifyFormat("size_t x = sizeof(x);", NoSpace); 8370 verifyFormat("auto f(int x) -> decltype(x);", NoSpace); 8371 verifyFormat("int f(T x) noexcept(x.create());", NoSpace); 8372 verifyFormat("alignas(128) char a[128];", NoSpace); 8373 verifyFormat("size_t x = alignof(MyType);", NoSpace); 8374 verifyFormat("static_assert(sizeof(char) == 1, \"Impossible!\");", NoSpace); 8375 verifyFormat("int f() throw(Deprecated);", NoSpace); 8376 verifyFormat("typedef void (*cb)(int);", NoSpace); 8377 verifyFormat("T A::operator()();", NoSpace); 8378 verifyFormat("X A::operator++(T);", NoSpace); 8379 8380 FormatStyle Space = getLLVMStyle(); 8381 Space.SpaceBeforeParens = FormatStyle::SBPO_Always; 8382 8383 verifyFormat("int f ();", Space); 8384 verifyFormat("void f (int a, T b) {\n" 8385 " while (true)\n" 8386 " continue;\n" 8387 "}", 8388 Space); 8389 verifyFormat("if (true)\n" 8390 " f ();\n" 8391 "else if (true)\n" 8392 " f ();", 8393 Space); 8394 verifyFormat("do {\n" 8395 " do_something ();\n" 8396 "} while (something ());", 8397 Space); 8398 verifyFormat("switch (x) {\n" 8399 "default:\n" 8400 " break;\n" 8401 "}", 8402 Space); 8403 verifyFormat("A::A () : a (1) {}", Space); 8404 verifyFormat("void f () __attribute__ ((asdf));", Space); 8405 verifyFormat("*(&a + 1);\n" 8406 "&((&a)[1]);\n" 8407 "a[(b + c) * d];\n" 8408 "(((a + 1) * 2) + 3) * 4;", 8409 Space); 8410 verifyFormat("#define A(x) x", Space); 8411 verifyFormat("#define A (x) x", Space); 8412 verifyFormat("#if defined(x)\n" 8413 "#endif", 8414 Space); 8415 verifyFormat("auto i = std::make_unique<int> (5);", Space); 8416 verifyFormat("size_t x = sizeof (x);", Space); 8417 verifyFormat("auto f (int x) -> decltype (x);", Space); 8418 verifyFormat("int f (T x) noexcept (x.create ());", Space); 8419 verifyFormat("alignas (128) char a[128];", Space); 8420 verifyFormat("size_t x = alignof (MyType);", Space); 8421 verifyFormat("static_assert (sizeof (char) == 1, \"Impossible!\");", Space); 8422 verifyFormat("int f () throw (Deprecated);", Space); 8423 verifyFormat("typedef void (*cb) (int);", Space); 8424 verifyFormat("T A::operator() ();", Space); 8425 verifyFormat("X A::operator++ (T);", Space); 8426 } 8427 8428 TEST_F(FormatTest, ConfigurableSpacesInParentheses) { 8429 FormatStyle Spaces = getLLVMStyle(); 8430 8431 Spaces.SpacesInParentheses = true; 8432 verifyFormat("call( x, y, z );", Spaces); 8433 verifyFormat("call();", Spaces); 8434 verifyFormat("std::function<void( int, int )> callback;", Spaces); 8435 verifyFormat("void inFunction() { std::function<void( int, int )> fct; }", 8436 Spaces); 8437 verifyFormat("while ( (bool)1 )\n" 8438 " continue;", 8439 Spaces); 8440 verifyFormat("for ( ;; )\n" 8441 " continue;", 8442 Spaces); 8443 verifyFormat("if ( true )\n" 8444 " f();\n" 8445 "else if ( true )\n" 8446 " f();", 8447 Spaces); 8448 verifyFormat("do {\n" 8449 " do_something( (int)i );\n" 8450 "} while ( something() );", 8451 Spaces); 8452 verifyFormat("switch ( x ) {\n" 8453 "default:\n" 8454 " break;\n" 8455 "}", 8456 Spaces); 8457 8458 Spaces.SpacesInParentheses = false; 8459 Spaces.SpacesInCStyleCastParentheses = true; 8460 verifyFormat("Type *A = ( Type * )P;", Spaces); 8461 verifyFormat("Type *A = ( vector<Type *, int *> )P;", Spaces); 8462 verifyFormat("x = ( int32 )y;", Spaces); 8463 verifyFormat("int a = ( int )(2.0f);", Spaces); 8464 verifyFormat("#define AA(X) sizeof((( X * )NULL)->a)", Spaces); 8465 verifyFormat("my_int a = ( my_int )sizeof(int);", Spaces); 8466 verifyFormat("#define x (( int )-1)", Spaces); 8467 8468 // Run the first set of tests again with: 8469 Spaces.SpacesInParentheses = false, Spaces.SpaceInEmptyParentheses = true; 8470 Spaces.SpacesInCStyleCastParentheses = true; 8471 verifyFormat("call(x, y, z);", Spaces); 8472 verifyFormat("call( );", Spaces); 8473 verifyFormat("std::function<void(int, int)> callback;", Spaces); 8474 verifyFormat("while (( bool )1)\n" 8475 " continue;", 8476 Spaces); 8477 verifyFormat("for (;;)\n" 8478 " continue;", 8479 Spaces); 8480 verifyFormat("if (true)\n" 8481 " f( );\n" 8482 "else if (true)\n" 8483 " f( );", 8484 Spaces); 8485 verifyFormat("do {\n" 8486 " do_something(( int )i);\n" 8487 "} while (something( ));", 8488 Spaces); 8489 verifyFormat("switch (x) {\n" 8490 "default:\n" 8491 " break;\n" 8492 "}", 8493 Spaces); 8494 8495 // Run the first set of tests again with: 8496 Spaces.SpaceAfterCStyleCast = true; 8497 verifyFormat("call(x, y, z);", Spaces); 8498 verifyFormat("call( );", Spaces); 8499 verifyFormat("std::function<void(int, int)> callback;", Spaces); 8500 verifyFormat("while (( bool ) 1)\n" 8501 " continue;", 8502 Spaces); 8503 verifyFormat("for (;;)\n" 8504 " continue;", 8505 Spaces); 8506 verifyFormat("if (true)\n" 8507 " f( );\n" 8508 "else if (true)\n" 8509 " f( );", 8510 Spaces); 8511 verifyFormat("do {\n" 8512 " do_something(( int ) i);\n" 8513 "} while (something( ));", 8514 Spaces); 8515 verifyFormat("switch (x) {\n" 8516 "default:\n" 8517 " break;\n" 8518 "}", 8519 Spaces); 8520 8521 // Run subset of tests again with: 8522 Spaces.SpacesInCStyleCastParentheses = false; 8523 Spaces.SpaceAfterCStyleCast = true; 8524 verifyFormat("while ((bool) 1)\n" 8525 " continue;", 8526 Spaces); 8527 verifyFormat("do {\n" 8528 " do_something((int) i);\n" 8529 "} while (something( ));", 8530 Spaces); 8531 } 8532 8533 TEST_F(FormatTest, ConfigurableSpacesInSquareBrackets) { 8534 verifyFormat("int a[5];"); 8535 verifyFormat("a[3] += 42;"); 8536 8537 FormatStyle Spaces = getLLVMStyle(); 8538 Spaces.SpacesInSquareBrackets = true; 8539 // Lambdas unchanged. 8540 verifyFormat("int c = []() -> int { return 2; }();\n", Spaces); 8541 verifyFormat("return [i, args...] {};", Spaces); 8542 8543 // Not lambdas. 8544 verifyFormat("int a[ 5 ];", Spaces); 8545 verifyFormat("a[ 3 ] += 42;", Spaces); 8546 verifyFormat("constexpr char hello[]{\"hello\"};", Spaces); 8547 verifyFormat("double &operator[](int i) { return 0; }\n" 8548 "int i;", 8549 Spaces); 8550 verifyFormat("std::unique_ptr<int[]> foo() {}", Spaces); 8551 verifyFormat("int i = a[ a ][ a ]->f();", Spaces); 8552 verifyFormat("int i = (*b)[ a ]->f();", Spaces); 8553 } 8554 8555 TEST_F(FormatTest, ConfigurableSpaceBeforeAssignmentOperators) { 8556 verifyFormat("int a = 5;"); 8557 verifyFormat("a += 42;"); 8558 verifyFormat("a or_eq 8;"); 8559 8560 FormatStyle Spaces = getLLVMStyle(); 8561 Spaces.SpaceBeforeAssignmentOperators = false; 8562 verifyFormat("int a= 5;", Spaces); 8563 verifyFormat("a+= 42;", Spaces); 8564 verifyFormat("a or_eq 8;", Spaces); 8565 } 8566 8567 TEST_F(FormatTest, AlignConsecutiveAssignments) { 8568 FormatStyle Alignment = getLLVMStyle(); 8569 Alignment.AlignConsecutiveAssignments = false; 8570 verifyFormat("int a = 5;\n" 8571 "int oneTwoThree = 123;", 8572 Alignment); 8573 verifyFormat("int a = 5;\n" 8574 "int oneTwoThree = 123;", 8575 Alignment); 8576 8577 Alignment.AlignConsecutiveAssignments = true; 8578 verifyFormat("int a = 5;\n" 8579 "int oneTwoThree = 123;", 8580 Alignment); 8581 verifyFormat("int a = method();\n" 8582 "int oneTwoThree = 133;", 8583 Alignment); 8584 verifyFormat("a &= 5;\n" 8585 "bcd *= 5;\n" 8586 "ghtyf += 5;\n" 8587 "dvfvdb -= 5;\n" 8588 "a /= 5;\n" 8589 "vdsvsv %= 5;\n" 8590 "sfdbddfbdfbb ^= 5;\n" 8591 "dvsdsv |= 5;\n" 8592 "int dsvvdvsdvvv = 123;", 8593 Alignment); 8594 verifyFormat("int i = 1, j = 10;\n" 8595 "something = 2000;", 8596 Alignment); 8597 verifyFormat("something = 2000;\n" 8598 "int i = 1, j = 10;\n", 8599 Alignment); 8600 verifyFormat("something = 2000;\n" 8601 "another = 911;\n" 8602 "int i = 1, j = 10;\n" 8603 "oneMore = 1;\n" 8604 "i = 2;", 8605 Alignment); 8606 verifyFormat("int a = 5;\n" 8607 "int one = 1;\n" 8608 "method();\n" 8609 "int oneTwoThree = 123;\n" 8610 "int oneTwo = 12;", 8611 Alignment); 8612 verifyFormat("int oneTwoThree = 123;\n" 8613 "int oneTwo = 12;\n" 8614 "method();\n", 8615 Alignment); 8616 verifyFormat("int oneTwoThree = 123; // comment\n" 8617 "int oneTwo = 12; // comment", 8618 Alignment); 8619 EXPECT_EQ("int a = 5;\n" 8620 "\n" 8621 "int oneTwoThree = 123;", 8622 format("int a = 5;\n" 8623 "\n" 8624 "int oneTwoThree= 123;", 8625 Alignment)); 8626 EXPECT_EQ("int a = 5;\n" 8627 "int one = 1;\n" 8628 "\n" 8629 "int oneTwoThree = 123;", 8630 format("int a = 5;\n" 8631 "int one = 1;\n" 8632 "\n" 8633 "int oneTwoThree = 123;", 8634 Alignment)); 8635 EXPECT_EQ("int a = 5;\n" 8636 "int one = 1;\n" 8637 "\n" 8638 "int oneTwoThree = 123;\n" 8639 "int oneTwo = 12;", 8640 format("int a = 5;\n" 8641 "int one = 1;\n" 8642 "\n" 8643 "int oneTwoThree = 123;\n" 8644 "int oneTwo = 12;", 8645 Alignment)); 8646 Alignment.AlignEscapedNewlinesLeft = true; 8647 verifyFormat("#define A \\\n" 8648 " int aaaa = 12; \\\n" 8649 " int b = 23; \\\n" 8650 " int ccc = 234; \\\n" 8651 " int dddddddddd = 2345;", 8652 Alignment); 8653 Alignment.AlignEscapedNewlinesLeft = false; 8654 verifyFormat("#define A " 8655 " \\\n" 8656 " int aaaa = 12; " 8657 " \\\n" 8658 " int b = 23; " 8659 " \\\n" 8660 " int ccc = 234; " 8661 " \\\n" 8662 " int dddddddddd = 2345;", 8663 Alignment); 8664 verifyFormat("void SomeFunction(int parameter = 1, int i = 2, int j = 3, int " 8665 "k = 4, int l = 5,\n" 8666 " int m = 6) {\n" 8667 " int j = 10;\n" 8668 " otherThing = 1;\n" 8669 "}", 8670 Alignment); 8671 verifyFormat("void SomeFunction(int parameter = 0) {\n" 8672 " int i = 1;\n" 8673 " int j = 2;\n" 8674 " int big = 10000;\n" 8675 "}", 8676 Alignment); 8677 verifyFormat("class C {\n" 8678 "public:\n" 8679 " int i = 1;\n" 8680 " virtual void f() = 0;\n" 8681 "};", 8682 Alignment); 8683 verifyFormat("int i = 1;\n" 8684 "if (SomeType t = getSomething()) {\n" 8685 "}\n" 8686 "int j = 2;\n" 8687 "int big = 10000;", 8688 Alignment); 8689 verifyFormat("int j = 7;\n" 8690 "for (int k = 0; k < N; ++k) {\n" 8691 "}\n" 8692 "int j = 2;\n" 8693 "int big = 10000;\n" 8694 "}", 8695 Alignment); 8696 Alignment.BreakBeforeBinaryOperators = FormatStyle::BOS_All; 8697 verifyFormat("int i = 1;\n" 8698 "LooooooooooongType loooooooooooooooooooooongVariable\n" 8699 " = someLooooooooooooooooongFunction();\n" 8700 "int j = 2;", 8701 Alignment); 8702 Alignment.BreakBeforeBinaryOperators = FormatStyle::BOS_None; 8703 verifyFormat("int i = 1;\n" 8704 "LooooooooooongType loooooooooooooooooooooongVariable =\n" 8705 " someLooooooooooooooooongFunction();\n" 8706 "int j = 2;", 8707 Alignment); 8708 8709 verifyFormat("auto lambda = []() {\n" 8710 " auto i = 0;\n" 8711 " return 0;\n" 8712 "};\n" 8713 "int i = 0;\n" 8714 "auto v = type{\n" 8715 " i = 1, //\n" 8716 " (i = 2), //\n" 8717 " i = 3 //\n" 8718 "};", 8719 Alignment); 8720 8721 // FIXME: Should align all three assignments 8722 verifyFormat( 8723 "int i = 1;\n" 8724 "SomeType a = SomeFunction(looooooooooooooooooooooongParameterA,\n" 8725 " loooooooooooooooooooooongParameterB);\n" 8726 "int j = 2;", 8727 Alignment); 8728 8729 verifyFormat("template <typename T, typename T_0 = very_long_type_name_0,\n" 8730 " typename B = very_long_type_name_1,\n" 8731 " typename T_2 = very_long_type_name_2>\n" 8732 "auto foo() {}\n", 8733 Alignment); 8734 verifyFormat("int a, b = 1;\n" 8735 "int c = 2;\n" 8736 "int dd = 3;\n", 8737 Alignment); 8738 verifyFormat("int aa = ((1 > 2) ? 3 : 4);\n" 8739 "float b[1][] = {{3.f}};\n", 8740 Alignment); 8741 } 8742 8743 TEST_F(FormatTest, AlignConsecutiveDeclarations) { 8744 FormatStyle Alignment = getLLVMStyle(); 8745 Alignment.AlignConsecutiveDeclarations = false; 8746 verifyFormat("float const a = 5;\n" 8747 "int oneTwoThree = 123;", 8748 Alignment); 8749 verifyFormat("int a = 5;\n" 8750 "float const oneTwoThree = 123;", 8751 Alignment); 8752 8753 Alignment.AlignConsecutiveDeclarations = true; 8754 verifyFormat("float const a = 5;\n" 8755 "int oneTwoThree = 123;", 8756 Alignment); 8757 verifyFormat("int a = method();\n" 8758 "float const oneTwoThree = 133;", 8759 Alignment); 8760 verifyFormat("int i = 1, j = 10;\n" 8761 "something = 2000;", 8762 Alignment); 8763 verifyFormat("something = 2000;\n" 8764 "int i = 1, j = 10;\n", 8765 Alignment); 8766 verifyFormat("float something = 2000;\n" 8767 "double another = 911;\n" 8768 "int i = 1, j = 10;\n" 8769 "const int *oneMore = 1;\n" 8770 "unsigned i = 2;", 8771 Alignment); 8772 verifyFormat("float a = 5;\n" 8773 "int one = 1;\n" 8774 "method();\n" 8775 "const double oneTwoThree = 123;\n" 8776 "const unsigned int oneTwo = 12;", 8777 Alignment); 8778 verifyFormat("int oneTwoThree{0}; // comment\n" 8779 "unsigned oneTwo; // comment", 8780 Alignment); 8781 EXPECT_EQ("float const a = 5;\n" 8782 "\n" 8783 "int oneTwoThree = 123;", 8784 format("float const a = 5;\n" 8785 "\n" 8786 "int oneTwoThree= 123;", 8787 Alignment)); 8788 EXPECT_EQ("float a = 5;\n" 8789 "int one = 1;\n" 8790 "\n" 8791 "unsigned oneTwoThree = 123;", 8792 format("float a = 5;\n" 8793 "int one = 1;\n" 8794 "\n" 8795 "unsigned oneTwoThree = 123;", 8796 Alignment)); 8797 EXPECT_EQ("float a = 5;\n" 8798 "int one = 1;\n" 8799 "\n" 8800 "unsigned oneTwoThree = 123;\n" 8801 "int oneTwo = 12;", 8802 format("float a = 5;\n" 8803 "int one = 1;\n" 8804 "\n" 8805 "unsigned oneTwoThree = 123;\n" 8806 "int oneTwo = 12;", 8807 Alignment)); 8808 Alignment.AlignConsecutiveAssignments = true; 8809 verifyFormat("float something = 2000;\n" 8810 "double another = 911;\n" 8811 "int i = 1, j = 10;\n" 8812 "const int *oneMore = 1;\n" 8813 "unsigned i = 2;", 8814 Alignment); 8815 verifyFormat("int oneTwoThree = {0}; // comment\n" 8816 "unsigned oneTwo = 0; // comment", 8817 Alignment); 8818 EXPECT_EQ("void SomeFunction(int parameter = 0) {\n" 8819 " int const i = 1;\n" 8820 " int * j = 2;\n" 8821 " int big = 10000;\n" 8822 "\n" 8823 " unsigned oneTwoThree = 123;\n" 8824 " int oneTwo = 12;\n" 8825 " method();\n" 8826 " float k = 2;\n" 8827 " int ll = 10000;\n" 8828 "}", 8829 format("void SomeFunction(int parameter= 0) {\n" 8830 " int const i= 1;\n" 8831 " int *j=2;\n" 8832 " int big = 10000;\n" 8833 "\n" 8834 "unsigned oneTwoThree =123;\n" 8835 "int oneTwo = 12;\n" 8836 " method();\n" 8837 "float k= 2;\n" 8838 "int ll=10000;\n" 8839 "}", 8840 Alignment)); 8841 Alignment.AlignConsecutiveAssignments = false; 8842 Alignment.AlignEscapedNewlinesLeft = true; 8843 verifyFormat("#define A \\\n" 8844 " int aaaa = 12; \\\n" 8845 " float b = 23; \\\n" 8846 " const int ccc = 234; \\\n" 8847 " unsigned dddddddddd = 2345;", 8848 Alignment); 8849 Alignment.AlignEscapedNewlinesLeft = false; 8850 Alignment.ColumnLimit = 30; 8851 verifyFormat("#define A \\\n" 8852 " int aaaa = 12; \\\n" 8853 " float b = 23; \\\n" 8854 " const int ccc = 234; \\\n" 8855 " int dddddddddd = 2345;", 8856 Alignment); 8857 Alignment.ColumnLimit = 80; 8858 verifyFormat("void SomeFunction(int parameter = 1, int i = 2, int j = 3, int " 8859 "k = 4, int l = 5,\n" 8860 " int m = 6) {\n" 8861 " const int j = 10;\n" 8862 " otherThing = 1;\n" 8863 "}", 8864 Alignment); 8865 verifyFormat("void SomeFunction(int parameter = 0) {\n" 8866 " int const i = 1;\n" 8867 " int * j = 2;\n" 8868 " int big = 10000;\n" 8869 "}", 8870 Alignment); 8871 verifyFormat("class C {\n" 8872 "public:\n" 8873 " int i = 1;\n" 8874 " virtual void f() = 0;\n" 8875 "};", 8876 Alignment); 8877 verifyFormat("float i = 1;\n" 8878 "if (SomeType t = getSomething()) {\n" 8879 "}\n" 8880 "const unsigned j = 2;\n" 8881 "int big = 10000;", 8882 Alignment); 8883 verifyFormat("float j = 7;\n" 8884 "for (int k = 0; k < N; ++k) {\n" 8885 "}\n" 8886 "unsigned j = 2;\n" 8887 "int big = 10000;\n" 8888 "}", 8889 Alignment); 8890 Alignment.BreakBeforeBinaryOperators = FormatStyle::BOS_All; 8891 verifyFormat("float i = 1;\n" 8892 "LooooooooooongType loooooooooooooooooooooongVariable\n" 8893 " = someLooooooooooooooooongFunction();\n" 8894 "int j = 2;", 8895 Alignment); 8896 Alignment.BreakBeforeBinaryOperators = FormatStyle::BOS_None; 8897 verifyFormat("int i = 1;\n" 8898 "LooooooooooongType loooooooooooooooooooooongVariable =\n" 8899 " someLooooooooooooooooongFunction();\n" 8900 "int j = 2;", 8901 Alignment); 8902 8903 Alignment.AlignConsecutiveAssignments = true; 8904 verifyFormat("auto lambda = []() {\n" 8905 " auto ii = 0;\n" 8906 " float j = 0;\n" 8907 " return 0;\n" 8908 "};\n" 8909 "int i = 0;\n" 8910 "float i2 = 0;\n" 8911 "auto v = type{\n" 8912 " i = 1, //\n" 8913 " (i = 2), //\n" 8914 " i = 3 //\n" 8915 "};", 8916 Alignment); 8917 Alignment.AlignConsecutiveAssignments = false; 8918 8919 // FIXME: Should align all three declarations 8920 verifyFormat( 8921 "int i = 1;\n" 8922 "SomeType a = SomeFunction(looooooooooooooooooooooongParameterA,\n" 8923 " loooooooooooooooooooooongParameterB);\n" 8924 "int j = 2;", 8925 Alignment); 8926 8927 // Test interactions with ColumnLimit and AlignConsecutiveAssignments: 8928 // We expect declarations and assignments to align, as long as it doesn't 8929 // exceed the column limit, starting a new alignemnt sequence whenever it 8930 // happens. 8931 Alignment.AlignConsecutiveAssignments = true; 8932 Alignment.ColumnLimit = 30; 8933 verifyFormat("float ii = 1;\n" 8934 "unsigned j = 2;\n" 8935 "int someVerylongVariable = 1;\n" 8936 "AnotherLongType ll = 123456;\n" 8937 "VeryVeryLongType k = 2;\n" 8938 "int myvar = 1;", 8939 Alignment); 8940 Alignment.ColumnLimit = 80; 8941 Alignment.AlignConsecutiveAssignments = false; 8942 8943 verifyFormat( 8944 "template <typename LongTemplate, typename VeryLongTemplateTypeName,\n" 8945 " typename LongType, typename B>\n" 8946 "auto foo() {}\n", 8947 Alignment); 8948 verifyFormat("float a, b = 1;\n" 8949 "int c = 2;\n" 8950 "int dd = 3;\n", 8951 Alignment); 8952 verifyFormat("int aa = ((1 > 2) ? 3 : 4);\n" 8953 "float b[1][] = {{3.f}};\n", 8954 Alignment); 8955 Alignment.AlignConsecutiveAssignments = true; 8956 verifyFormat("float a, b = 1;\n" 8957 "int c = 2;\n" 8958 "int dd = 3;\n", 8959 Alignment); 8960 verifyFormat("int aa = ((1 > 2) ? 3 : 4);\n" 8961 "float b[1][] = {{3.f}};\n", 8962 Alignment); 8963 Alignment.AlignConsecutiveAssignments = false; 8964 8965 Alignment.ColumnLimit = 30; 8966 Alignment.BinPackParameters = false; 8967 verifyFormat("void foo(float a,\n" 8968 " float b,\n" 8969 " int c,\n" 8970 " uint32_t *d) {\n" 8971 " int * e = 0;\n" 8972 " float f = 0;\n" 8973 " double g = 0;\n" 8974 "}\n" 8975 "void bar(ino_t a,\n" 8976 " int b,\n" 8977 " uint32_t *c,\n" 8978 " bool d) {}\n", 8979 Alignment); 8980 Alignment.BinPackParameters = true; 8981 Alignment.ColumnLimit = 80; 8982 } 8983 8984 TEST_F(FormatTest, LinuxBraceBreaking) { 8985 FormatStyle LinuxBraceStyle = getLLVMStyle(); 8986 LinuxBraceStyle.BreakBeforeBraces = FormatStyle::BS_Linux; 8987 verifyFormat("namespace a\n" 8988 "{\n" 8989 "class A\n" 8990 "{\n" 8991 " void f()\n" 8992 " {\n" 8993 " if (true) {\n" 8994 " a();\n" 8995 " b();\n" 8996 " }\n" 8997 " }\n" 8998 " void g() { return; }\n" 8999 "};\n" 9000 "struct B {\n" 9001 " int x;\n" 9002 "};\n" 9003 "}\n", 9004 LinuxBraceStyle); 9005 verifyFormat("enum X {\n" 9006 " Y = 0,\n" 9007 "}\n", 9008 LinuxBraceStyle); 9009 verifyFormat("struct S {\n" 9010 " int Type;\n" 9011 " union {\n" 9012 " int x;\n" 9013 " double y;\n" 9014 " } Value;\n" 9015 " class C\n" 9016 " {\n" 9017 " MyFavoriteType Value;\n" 9018 " } Class;\n" 9019 "}\n", 9020 LinuxBraceStyle); 9021 } 9022 9023 TEST_F(FormatTest, MozillaBraceBreaking) { 9024 FormatStyle MozillaBraceStyle = getLLVMStyle(); 9025 MozillaBraceStyle.BreakBeforeBraces = FormatStyle::BS_Mozilla; 9026 verifyFormat("namespace a {\n" 9027 "class A\n" 9028 "{\n" 9029 " void f()\n" 9030 " {\n" 9031 " if (true) {\n" 9032 " a();\n" 9033 " b();\n" 9034 " }\n" 9035 " }\n" 9036 " void g() { return; }\n" 9037 "};\n" 9038 "enum E\n" 9039 "{\n" 9040 " A,\n" 9041 " // foo\n" 9042 " B,\n" 9043 " C\n" 9044 "};\n" 9045 "struct B\n" 9046 "{\n" 9047 " int x;\n" 9048 "};\n" 9049 "}\n", 9050 MozillaBraceStyle); 9051 verifyFormat("struct S\n" 9052 "{\n" 9053 " int Type;\n" 9054 " union\n" 9055 " {\n" 9056 " int x;\n" 9057 " double y;\n" 9058 " } Value;\n" 9059 " class C\n" 9060 " {\n" 9061 " MyFavoriteType Value;\n" 9062 " } Class;\n" 9063 "}\n", 9064 MozillaBraceStyle); 9065 } 9066 9067 TEST_F(FormatTest, StroustrupBraceBreaking) { 9068 FormatStyle StroustrupBraceStyle = getLLVMStyle(); 9069 StroustrupBraceStyle.BreakBeforeBraces = FormatStyle::BS_Stroustrup; 9070 verifyFormat("namespace a {\n" 9071 "class A {\n" 9072 " void f()\n" 9073 " {\n" 9074 " if (true) {\n" 9075 " a();\n" 9076 " b();\n" 9077 " }\n" 9078 " }\n" 9079 " void g() { return; }\n" 9080 "};\n" 9081 "struct B {\n" 9082 " int x;\n" 9083 "};\n" 9084 "}\n", 9085 StroustrupBraceStyle); 9086 9087 verifyFormat("void foo()\n" 9088 "{\n" 9089 " if (a) {\n" 9090 " a();\n" 9091 " }\n" 9092 " else {\n" 9093 " b();\n" 9094 " }\n" 9095 "}\n", 9096 StroustrupBraceStyle); 9097 9098 verifyFormat("#ifdef _DEBUG\n" 9099 "int foo(int i = 0)\n" 9100 "#else\n" 9101 "int foo(int i = 5)\n" 9102 "#endif\n" 9103 "{\n" 9104 " return i;\n" 9105 "}", 9106 StroustrupBraceStyle); 9107 9108 verifyFormat("void foo() {}\n" 9109 "void bar()\n" 9110 "#ifdef _DEBUG\n" 9111 "{\n" 9112 " foo();\n" 9113 "}\n" 9114 "#else\n" 9115 "{\n" 9116 "}\n" 9117 "#endif", 9118 StroustrupBraceStyle); 9119 9120 verifyFormat("void foobar() { int i = 5; }\n" 9121 "#ifdef _DEBUG\n" 9122 "void bar() {}\n" 9123 "#else\n" 9124 "void bar() { foobar(); }\n" 9125 "#endif", 9126 StroustrupBraceStyle); 9127 } 9128 9129 TEST_F(FormatTest, AllmanBraceBreaking) { 9130 FormatStyle AllmanBraceStyle = getLLVMStyle(); 9131 AllmanBraceStyle.BreakBeforeBraces = FormatStyle::BS_Allman; 9132 verifyFormat("namespace a\n" 9133 "{\n" 9134 "class A\n" 9135 "{\n" 9136 " void f()\n" 9137 " {\n" 9138 " if (true)\n" 9139 " {\n" 9140 " a();\n" 9141 " b();\n" 9142 " }\n" 9143 " }\n" 9144 " void g() { return; }\n" 9145 "};\n" 9146 "struct B\n" 9147 "{\n" 9148 " int x;\n" 9149 "};\n" 9150 "}", 9151 AllmanBraceStyle); 9152 9153 verifyFormat("void f()\n" 9154 "{\n" 9155 " if (true)\n" 9156 " {\n" 9157 " a();\n" 9158 " }\n" 9159 " else if (false)\n" 9160 " {\n" 9161 " b();\n" 9162 " }\n" 9163 " else\n" 9164 " {\n" 9165 " c();\n" 9166 " }\n" 9167 "}\n", 9168 AllmanBraceStyle); 9169 9170 verifyFormat("void f()\n" 9171 "{\n" 9172 " for (int i = 0; i < 10; ++i)\n" 9173 " {\n" 9174 " a();\n" 9175 " }\n" 9176 " while (false)\n" 9177 " {\n" 9178 " b();\n" 9179 " }\n" 9180 " do\n" 9181 " {\n" 9182 " c();\n" 9183 " } while (false)\n" 9184 "}\n", 9185 AllmanBraceStyle); 9186 9187 verifyFormat("void f(int a)\n" 9188 "{\n" 9189 " switch (a)\n" 9190 " {\n" 9191 " case 0:\n" 9192 " break;\n" 9193 " case 1:\n" 9194 " {\n" 9195 " break;\n" 9196 " }\n" 9197 " case 2:\n" 9198 " {\n" 9199 " }\n" 9200 " break;\n" 9201 " default:\n" 9202 " break;\n" 9203 " }\n" 9204 "}\n", 9205 AllmanBraceStyle); 9206 9207 verifyFormat("enum X\n" 9208 "{\n" 9209 " Y = 0,\n" 9210 "}\n", 9211 AllmanBraceStyle); 9212 verifyFormat("enum X\n" 9213 "{\n" 9214 " Y = 0\n" 9215 "}\n", 9216 AllmanBraceStyle); 9217 9218 verifyFormat("@interface BSApplicationController ()\n" 9219 "{\n" 9220 "@private\n" 9221 " id _extraIvar;\n" 9222 "}\n" 9223 "@end\n", 9224 AllmanBraceStyle); 9225 9226 verifyFormat("#ifdef _DEBUG\n" 9227 "int foo(int i = 0)\n" 9228 "#else\n" 9229 "int foo(int i = 5)\n" 9230 "#endif\n" 9231 "{\n" 9232 " return i;\n" 9233 "}", 9234 AllmanBraceStyle); 9235 9236 verifyFormat("void foo() {}\n" 9237 "void bar()\n" 9238 "#ifdef _DEBUG\n" 9239 "{\n" 9240 " foo();\n" 9241 "}\n" 9242 "#else\n" 9243 "{\n" 9244 "}\n" 9245 "#endif", 9246 AllmanBraceStyle); 9247 9248 verifyFormat("void foobar() { int i = 5; }\n" 9249 "#ifdef _DEBUG\n" 9250 "void bar() {}\n" 9251 "#else\n" 9252 "void bar() { foobar(); }\n" 9253 "#endif", 9254 AllmanBraceStyle); 9255 9256 // This shouldn't affect ObjC blocks.. 9257 verifyFormat("[self doSomeThingWithACompletionHandler:^{\n" 9258 " // ...\n" 9259 " int i;\n" 9260 "}];", 9261 AllmanBraceStyle); 9262 verifyFormat("void (^block)(void) = ^{\n" 9263 " // ...\n" 9264 " int i;\n" 9265 "};", 9266 AllmanBraceStyle); 9267 // .. or dict literals. 9268 verifyFormat("void f()\n" 9269 "{\n" 9270 " [object someMethod:@{ @\"a\" : @\"b\" }];\n" 9271 "}", 9272 AllmanBraceStyle); 9273 verifyFormat("int f()\n" 9274 "{ // comment\n" 9275 " return 42;\n" 9276 "}", 9277 AllmanBraceStyle); 9278 9279 AllmanBraceStyle.ColumnLimit = 19; 9280 verifyFormat("void f() { int i; }", AllmanBraceStyle); 9281 AllmanBraceStyle.ColumnLimit = 18; 9282 verifyFormat("void f()\n" 9283 "{\n" 9284 " int i;\n" 9285 "}", 9286 AllmanBraceStyle); 9287 AllmanBraceStyle.ColumnLimit = 80; 9288 9289 FormatStyle BreakBeforeBraceShortIfs = AllmanBraceStyle; 9290 BreakBeforeBraceShortIfs.AllowShortIfStatementsOnASingleLine = true; 9291 BreakBeforeBraceShortIfs.AllowShortLoopsOnASingleLine = true; 9292 verifyFormat("void f(bool b)\n" 9293 "{\n" 9294 " if (b)\n" 9295 " {\n" 9296 " return;\n" 9297 " }\n" 9298 "}\n", 9299 BreakBeforeBraceShortIfs); 9300 verifyFormat("void f(bool b)\n" 9301 "{\n" 9302 " if (b) return;\n" 9303 "}\n", 9304 BreakBeforeBraceShortIfs); 9305 verifyFormat("void f(bool b)\n" 9306 "{\n" 9307 " while (b)\n" 9308 " {\n" 9309 " return;\n" 9310 " }\n" 9311 "}\n", 9312 BreakBeforeBraceShortIfs); 9313 } 9314 9315 TEST_F(FormatTest, GNUBraceBreaking) { 9316 FormatStyle GNUBraceStyle = getLLVMStyle(); 9317 GNUBraceStyle.BreakBeforeBraces = FormatStyle::BS_GNU; 9318 verifyFormat("namespace a\n" 9319 "{\n" 9320 "class A\n" 9321 "{\n" 9322 " void f()\n" 9323 " {\n" 9324 " int a;\n" 9325 " {\n" 9326 " int b;\n" 9327 " }\n" 9328 " if (true)\n" 9329 " {\n" 9330 " a();\n" 9331 " b();\n" 9332 " }\n" 9333 " }\n" 9334 " void g() { return; }\n" 9335 "}\n" 9336 "}", 9337 GNUBraceStyle); 9338 9339 verifyFormat("void f()\n" 9340 "{\n" 9341 " if (true)\n" 9342 " {\n" 9343 " a();\n" 9344 " }\n" 9345 " else if (false)\n" 9346 " {\n" 9347 " b();\n" 9348 " }\n" 9349 " else\n" 9350 " {\n" 9351 " c();\n" 9352 " }\n" 9353 "}\n", 9354 GNUBraceStyle); 9355 9356 verifyFormat("void f()\n" 9357 "{\n" 9358 " for (int i = 0; i < 10; ++i)\n" 9359 " {\n" 9360 " a();\n" 9361 " }\n" 9362 " while (false)\n" 9363 " {\n" 9364 " b();\n" 9365 " }\n" 9366 " do\n" 9367 " {\n" 9368 " c();\n" 9369 " }\n" 9370 " while (false);\n" 9371 "}\n", 9372 GNUBraceStyle); 9373 9374 verifyFormat("void f(int a)\n" 9375 "{\n" 9376 " switch (a)\n" 9377 " {\n" 9378 " case 0:\n" 9379 " break;\n" 9380 " case 1:\n" 9381 " {\n" 9382 " break;\n" 9383 " }\n" 9384 " case 2:\n" 9385 " {\n" 9386 " }\n" 9387 " break;\n" 9388 " default:\n" 9389 " break;\n" 9390 " }\n" 9391 "}\n", 9392 GNUBraceStyle); 9393 9394 verifyFormat("enum X\n" 9395 "{\n" 9396 " Y = 0,\n" 9397 "}\n", 9398 GNUBraceStyle); 9399 9400 verifyFormat("@interface BSApplicationController ()\n" 9401 "{\n" 9402 "@private\n" 9403 " id _extraIvar;\n" 9404 "}\n" 9405 "@end\n", 9406 GNUBraceStyle); 9407 9408 verifyFormat("#ifdef _DEBUG\n" 9409 "int foo(int i = 0)\n" 9410 "#else\n" 9411 "int foo(int i = 5)\n" 9412 "#endif\n" 9413 "{\n" 9414 " return i;\n" 9415 "}", 9416 GNUBraceStyle); 9417 9418 verifyFormat("void foo() {}\n" 9419 "void bar()\n" 9420 "#ifdef _DEBUG\n" 9421 "{\n" 9422 " foo();\n" 9423 "}\n" 9424 "#else\n" 9425 "{\n" 9426 "}\n" 9427 "#endif", 9428 GNUBraceStyle); 9429 9430 verifyFormat("void foobar() { int i = 5; }\n" 9431 "#ifdef _DEBUG\n" 9432 "void bar() {}\n" 9433 "#else\n" 9434 "void bar() { foobar(); }\n" 9435 "#endif", 9436 GNUBraceStyle); 9437 } 9438 9439 TEST_F(FormatTest, WebKitBraceBreaking) { 9440 FormatStyle WebKitBraceStyle = getLLVMStyle(); 9441 WebKitBraceStyle.BreakBeforeBraces = FormatStyle::BS_WebKit; 9442 verifyFormat("namespace a {\n" 9443 "class A {\n" 9444 " void f()\n" 9445 " {\n" 9446 " if (true) {\n" 9447 " a();\n" 9448 " b();\n" 9449 " }\n" 9450 " }\n" 9451 " void g() { return; }\n" 9452 "};\n" 9453 "enum E {\n" 9454 " A,\n" 9455 " // foo\n" 9456 " B,\n" 9457 " C\n" 9458 "};\n" 9459 "struct B {\n" 9460 " int x;\n" 9461 "};\n" 9462 "}\n", 9463 WebKitBraceStyle); 9464 verifyFormat("struct S {\n" 9465 " int Type;\n" 9466 " union {\n" 9467 " int x;\n" 9468 " double y;\n" 9469 " } Value;\n" 9470 " class C {\n" 9471 " MyFavoriteType Value;\n" 9472 " } Class;\n" 9473 "};\n", 9474 WebKitBraceStyle); 9475 } 9476 9477 TEST_F(FormatTest, CatchExceptionReferenceBinding) { 9478 verifyFormat("void f() {\n" 9479 " try {\n" 9480 " } catch (const Exception &e) {\n" 9481 " }\n" 9482 "}\n", 9483 getLLVMStyle()); 9484 } 9485 9486 TEST_F(FormatTest, UnderstandsPragmas) { 9487 verifyFormat("#pragma omp reduction(| : var)"); 9488 verifyFormat("#pragma omp reduction(+ : var)"); 9489 9490 EXPECT_EQ("#pragma mark Any non-hyphenated or hyphenated string " 9491 "(including parentheses).", 9492 format("#pragma mark Any non-hyphenated or hyphenated string " 9493 "(including parentheses).")); 9494 } 9495 9496 TEST_F(FormatTest, UnderstandPragmaOption) { 9497 verifyFormat("#pragma option -C -A"); 9498 9499 EXPECT_EQ("#pragma option -C -A", format("#pragma option -C -A")); 9500 } 9501 9502 #define EXPECT_ALL_STYLES_EQUAL(Styles) \ 9503 for (size_t i = 1; i < Styles.size(); ++i) \ 9504 EXPECT_EQ(Styles[0], Styles[i]) << "Style #" << i << " of " << Styles.size() \ 9505 << " differs from Style #0" 9506 9507 TEST_F(FormatTest, GetsPredefinedStyleByName) { 9508 SmallVector<FormatStyle, 3> Styles; 9509 Styles.resize(3); 9510 9511 Styles[0] = getLLVMStyle(); 9512 EXPECT_TRUE(getPredefinedStyle("LLVM", FormatStyle::LK_Cpp, &Styles[1])); 9513 EXPECT_TRUE(getPredefinedStyle("lLvM", FormatStyle::LK_Cpp, &Styles[2])); 9514 EXPECT_ALL_STYLES_EQUAL(Styles); 9515 9516 Styles[0] = getGoogleStyle(); 9517 EXPECT_TRUE(getPredefinedStyle("Google", FormatStyle::LK_Cpp, &Styles[1])); 9518 EXPECT_TRUE(getPredefinedStyle("gOOgle", FormatStyle::LK_Cpp, &Styles[2])); 9519 EXPECT_ALL_STYLES_EQUAL(Styles); 9520 9521 Styles[0] = getGoogleStyle(FormatStyle::LK_JavaScript); 9522 EXPECT_TRUE( 9523 getPredefinedStyle("Google", FormatStyle::LK_JavaScript, &Styles[1])); 9524 EXPECT_TRUE( 9525 getPredefinedStyle("gOOgle", FormatStyle::LK_JavaScript, &Styles[2])); 9526 EXPECT_ALL_STYLES_EQUAL(Styles); 9527 9528 Styles[0] = getChromiumStyle(FormatStyle::LK_Cpp); 9529 EXPECT_TRUE(getPredefinedStyle("Chromium", FormatStyle::LK_Cpp, &Styles[1])); 9530 EXPECT_TRUE(getPredefinedStyle("cHRoMiUM", FormatStyle::LK_Cpp, &Styles[2])); 9531 EXPECT_ALL_STYLES_EQUAL(Styles); 9532 9533 Styles[0] = getMozillaStyle(); 9534 EXPECT_TRUE(getPredefinedStyle("Mozilla", FormatStyle::LK_Cpp, &Styles[1])); 9535 EXPECT_TRUE(getPredefinedStyle("moZILla", FormatStyle::LK_Cpp, &Styles[2])); 9536 EXPECT_ALL_STYLES_EQUAL(Styles); 9537 9538 Styles[0] = getWebKitStyle(); 9539 EXPECT_TRUE(getPredefinedStyle("WebKit", FormatStyle::LK_Cpp, &Styles[1])); 9540 EXPECT_TRUE(getPredefinedStyle("wEbKit", FormatStyle::LK_Cpp, &Styles[2])); 9541 EXPECT_ALL_STYLES_EQUAL(Styles); 9542 9543 Styles[0] = getGNUStyle(); 9544 EXPECT_TRUE(getPredefinedStyle("GNU", FormatStyle::LK_Cpp, &Styles[1])); 9545 EXPECT_TRUE(getPredefinedStyle("gnU", FormatStyle::LK_Cpp, &Styles[2])); 9546 EXPECT_ALL_STYLES_EQUAL(Styles); 9547 9548 EXPECT_FALSE(getPredefinedStyle("qwerty", FormatStyle::LK_Cpp, &Styles[0])); 9549 } 9550 9551 TEST_F(FormatTest, GetsCorrectBasedOnStyle) { 9552 SmallVector<FormatStyle, 8> Styles; 9553 Styles.resize(2); 9554 9555 Styles[0] = getGoogleStyle(); 9556 Styles[1] = getLLVMStyle(); 9557 EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google", &Styles[1]).value()); 9558 EXPECT_ALL_STYLES_EQUAL(Styles); 9559 9560 Styles.resize(5); 9561 Styles[0] = getGoogleStyle(FormatStyle::LK_JavaScript); 9562 Styles[1] = getLLVMStyle(); 9563 Styles[1].Language = FormatStyle::LK_JavaScript; 9564 EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google", &Styles[1]).value()); 9565 9566 Styles[2] = getLLVMStyle(); 9567 Styles[2].Language = FormatStyle::LK_JavaScript; 9568 EXPECT_EQ(0, parseConfiguration("Language: JavaScript\n" 9569 "BasedOnStyle: Google", 9570 &Styles[2]) 9571 .value()); 9572 9573 Styles[3] = getLLVMStyle(); 9574 Styles[3].Language = FormatStyle::LK_JavaScript; 9575 EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google\n" 9576 "Language: JavaScript", 9577 &Styles[3]) 9578 .value()); 9579 9580 Styles[4] = getLLVMStyle(); 9581 Styles[4].Language = FormatStyle::LK_JavaScript; 9582 EXPECT_EQ(0, parseConfiguration("---\n" 9583 "BasedOnStyle: LLVM\n" 9584 "IndentWidth: 123\n" 9585 "---\n" 9586 "BasedOnStyle: Google\n" 9587 "Language: JavaScript", 9588 &Styles[4]) 9589 .value()); 9590 EXPECT_ALL_STYLES_EQUAL(Styles); 9591 } 9592 9593 #define CHECK_PARSE_BOOL_FIELD(FIELD, CONFIG_NAME) \ 9594 Style.FIELD = false; \ 9595 EXPECT_EQ(0, parseConfiguration(CONFIG_NAME ": true", &Style).value()); \ 9596 EXPECT_TRUE(Style.FIELD); \ 9597 EXPECT_EQ(0, parseConfiguration(CONFIG_NAME ": false", &Style).value()); \ 9598 EXPECT_FALSE(Style.FIELD); 9599 9600 #define CHECK_PARSE_BOOL(FIELD) CHECK_PARSE_BOOL_FIELD(FIELD, #FIELD) 9601 9602 #define CHECK_PARSE_NESTED_BOOL_FIELD(STRUCT, FIELD, CONFIG_NAME) \ 9603 Style.STRUCT.FIELD = false; \ 9604 EXPECT_EQ(0, \ 9605 parseConfiguration(#STRUCT ":\n " CONFIG_NAME ": true", &Style) \ 9606 .value()); \ 9607 EXPECT_TRUE(Style.STRUCT.FIELD); \ 9608 EXPECT_EQ(0, \ 9609 parseConfiguration(#STRUCT ":\n " CONFIG_NAME ": false", &Style) \ 9610 .value()); \ 9611 EXPECT_FALSE(Style.STRUCT.FIELD); 9612 9613 #define CHECK_PARSE_NESTED_BOOL(STRUCT, FIELD) \ 9614 CHECK_PARSE_NESTED_BOOL_FIELD(STRUCT, FIELD, #FIELD) 9615 9616 #define CHECK_PARSE(TEXT, FIELD, VALUE) \ 9617 EXPECT_NE(VALUE, Style.FIELD); \ 9618 EXPECT_EQ(0, parseConfiguration(TEXT, &Style).value()); \ 9619 EXPECT_EQ(VALUE, Style.FIELD) 9620 9621 TEST_F(FormatTest, ParsesConfigurationBools) { 9622 FormatStyle Style = {}; 9623 Style.Language = FormatStyle::LK_Cpp; 9624 CHECK_PARSE_BOOL(AlignEscapedNewlinesLeft); 9625 CHECK_PARSE_BOOL(AlignOperands); 9626 CHECK_PARSE_BOOL(AlignTrailingComments); 9627 CHECK_PARSE_BOOL(AlignConsecutiveAssignments); 9628 CHECK_PARSE_BOOL(AlignConsecutiveDeclarations); 9629 CHECK_PARSE_BOOL(AllowAllParametersOfDeclarationOnNextLine); 9630 CHECK_PARSE_BOOL(AllowShortBlocksOnASingleLine); 9631 CHECK_PARSE_BOOL(AllowShortCaseLabelsOnASingleLine); 9632 CHECK_PARSE_BOOL(AllowShortIfStatementsOnASingleLine); 9633 CHECK_PARSE_BOOL(AllowShortLoopsOnASingleLine); 9634 CHECK_PARSE_BOOL(AlwaysBreakTemplateDeclarations); 9635 CHECK_PARSE_BOOL(BinPackArguments); 9636 CHECK_PARSE_BOOL(BinPackParameters); 9637 CHECK_PARSE_BOOL(BreakBeforeTernaryOperators); 9638 CHECK_PARSE_BOOL(BreakConstructorInitializersBeforeComma); 9639 CHECK_PARSE_BOOL(ConstructorInitializerAllOnOneLineOrOnePerLine); 9640 CHECK_PARSE_BOOL(DerivePointerAlignment); 9641 CHECK_PARSE_BOOL_FIELD(DerivePointerAlignment, "DerivePointerBinding"); 9642 CHECK_PARSE_BOOL(DisableFormat); 9643 CHECK_PARSE_BOOL(IndentCaseLabels); 9644 CHECK_PARSE_BOOL(IndentWrappedFunctionNames); 9645 CHECK_PARSE_BOOL(KeepEmptyLinesAtTheStartOfBlocks); 9646 CHECK_PARSE_BOOL(ObjCSpaceAfterProperty); 9647 CHECK_PARSE_BOOL(ObjCSpaceBeforeProtocolList); 9648 CHECK_PARSE_BOOL(Cpp11BracedListStyle); 9649 CHECK_PARSE_BOOL(ReflowComments); 9650 CHECK_PARSE_BOOL(SortIncludes); 9651 CHECK_PARSE_BOOL(SpacesInParentheses); 9652 CHECK_PARSE_BOOL(SpacesInSquareBrackets); 9653 CHECK_PARSE_BOOL(SpacesInAngles); 9654 CHECK_PARSE_BOOL(SpaceInEmptyParentheses); 9655 CHECK_PARSE_BOOL(SpacesInContainerLiterals); 9656 CHECK_PARSE_BOOL(SpacesInCStyleCastParentheses); 9657 CHECK_PARSE_BOOL(SpaceAfterCStyleCast); 9658 CHECK_PARSE_BOOL(SpaceBeforeAssignmentOperators); 9659 9660 CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterClass); 9661 CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterControlStatement); 9662 CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterEnum); 9663 CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterFunction); 9664 CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterNamespace); 9665 CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterObjCDeclaration); 9666 CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterStruct); 9667 CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterUnion); 9668 CHECK_PARSE_NESTED_BOOL(BraceWrapping, BeforeCatch); 9669 CHECK_PARSE_NESTED_BOOL(BraceWrapping, BeforeElse); 9670 CHECK_PARSE_NESTED_BOOL(BraceWrapping, IndentBraces); 9671 } 9672 9673 #undef CHECK_PARSE_BOOL 9674 9675 TEST_F(FormatTest, ParsesConfiguration) { 9676 FormatStyle Style = {}; 9677 Style.Language = FormatStyle::LK_Cpp; 9678 CHECK_PARSE("AccessModifierOffset: -1234", AccessModifierOffset, -1234); 9679 CHECK_PARSE("ConstructorInitializerIndentWidth: 1234", 9680 ConstructorInitializerIndentWidth, 1234u); 9681 CHECK_PARSE("ObjCBlockIndentWidth: 1234", ObjCBlockIndentWidth, 1234u); 9682 CHECK_PARSE("ColumnLimit: 1234", ColumnLimit, 1234u); 9683 CHECK_PARSE("MaxEmptyLinesToKeep: 1234", MaxEmptyLinesToKeep, 1234u); 9684 CHECK_PARSE("PenaltyBreakBeforeFirstCallParameter: 1234", 9685 PenaltyBreakBeforeFirstCallParameter, 1234u); 9686 CHECK_PARSE("PenaltyExcessCharacter: 1234", PenaltyExcessCharacter, 1234u); 9687 CHECK_PARSE("PenaltyReturnTypeOnItsOwnLine: 1234", 9688 PenaltyReturnTypeOnItsOwnLine, 1234u); 9689 CHECK_PARSE("SpacesBeforeTrailingComments: 1234", 9690 SpacesBeforeTrailingComments, 1234u); 9691 CHECK_PARSE("IndentWidth: 32", IndentWidth, 32u); 9692 CHECK_PARSE("ContinuationIndentWidth: 11", ContinuationIndentWidth, 11u); 9693 9694 Style.PointerAlignment = FormatStyle::PAS_Middle; 9695 CHECK_PARSE("PointerAlignment: Left", PointerAlignment, 9696 FormatStyle::PAS_Left); 9697 CHECK_PARSE("PointerAlignment: Right", PointerAlignment, 9698 FormatStyle::PAS_Right); 9699 CHECK_PARSE("PointerAlignment: Middle", PointerAlignment, 9700 FormatStyle::PAS_Middle); 9701 // For backward compatibility: 9702 CHECK_PARSE("PointerBindsToType: Left", PointerAlignment, 9703 FormatStyle::PAS_Left); 9704 CHECK_PARSE("PointerBindsToType: Right", PointerAlignment, 9705 FormatStyle::PAS_Right); 9706 CHECK_PARSE("PointerBindsToType: Middle", PointerAlignment, 9707 FormatStyle::PAS_Middle); 9708 9709 Style.Standard = FormatStyle::LS_Auto; 9710 CHECK_PARSE("Standard: Cpp03", Standard, FormatStyle::LS_Cpp03); 9711 CHECK_PARSE("Standard: Cpp11", Standard, FormatStyle::LS_Cpp11); 9712 CHECK_PARSE("Standard: C++03", Standard, FormatStyle::LS_Cpp03); 9713 CHECK_PARSE("Standard: C++11", Standard, FormatStyle::LS_Cpp11); 9714 CHECK_PARSE("Standard: Auto", Standard, FormatStyle::LS_Auto); 9715 9716 Style.BreakBeforeBinaryOperators = FormatStyle::BOS_All; 9717 CHECK_PARSE("BreakBeforeBinaryOperators: NonAssignment", 9718 BreakBeforeBinaryOperators, FormatStyle::BOS_NonAssignment); 9719 CHECK_PARSE("BreakBeforeBinaryOperators: None", BreakBeforeBinaryOperators, 9720 FormatStyle::BOS_None); 9721 CHECK_PARSE("BreakBeforeBinaryOperators: All", BreakBeforeBinaryOperators, 9722 FormatStyle::BOS_All); 9723 // For backward compatibility: 9724 CHECK_PARSE("BreakBeforeBinaryOperators: false", BreakBeforeBinaryOperators, 9725 FormatStyle::BOS_None); 9726 CHECK_PARSE("BreakBeforeBinaryOperators: true", BreakBeforeBinaryOperators, 9727 FormatStyle::BOS_All); 9728 9729 Style.AlignAfterOpenBracket = FormatStyle::BAS_AlwaysBreak; 9730 CHECK_PARSE("AlignAfterOpenBracket: Align", AlignAfterOpenBracket, 9731 FormatStyle::BAS_Align); 9732 CHECK_PARSE("AlignAfterOpenBracket: DontAlign", AlignAfterOpenBracket, 9733 FormatStyle::BAS_DontAlign); 9734 CHECK_PARSE("AlignAfterOpenBracket: AlwaysBreak", AlignAfterOpenBracket, 9735 FormatStyle::BAS_AlwaysBreak); 9736 // For backward compatibility: 9737 CHECK_PARSE("AlignAfterOpenBracket: false", AlignAfterOpenBracket, 9738 FormatStyle::BAS_DontAlign); 9739 CHECK_PARSE("AlignAfterOpenBracket: true", AlignAfterOpenBracket, 9740 FormatStyle::BAS_Align); 9741 9742 Style.UseTab = FormatStyle::UT_ForIndentation; 9743 CHECK_PARSE("UseTab: Never", UseTab, FormatStyle::UT_Never); 9744 CHECK_PARSE("UseTab: ForIndentation", UseTab, FormatStyle::UT_ForIndentation); 9745 CHECK_PARSE("UseTab: Always", UseTab, FormatStyle::UT_Always); 9746 // For backward compatibility: 9747 CHECK_PARSE("UseTab: false", UseTab, FormatStyle::UT_Never); 9748 CHECK_PARSE("UseTab: true", UseTab, FormatStyle::UT_Always); 9749 9750 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Inline; 9751 CHECK_PARSE("AllowShortFunctionsOnASingleLine: None", 9752 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_None); 9753 CHECK_PARSE("AllowShortFunctionsOnASingleLine: Inline", 9754 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_Inline); 9755 CHECK_PARSE("AllowShortFunctionsOnASingleLine: Empty", 9756 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_Empty); 9757 CHECK_PARSE("AllowShortFunctionsOnASingleLine: All", 9758 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_All); 9759 // For backward compatibility: 9760 CHECK_PARSE("AllowShortFunctionsOnASingleLine: false", 9761 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_None); 9762 CHECK_PARSE("AllowShortFunctionsOnASingleLine: true", 9763 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_All); 9764 9765 Style.SpaceBeforeParens = FormatStyle::SBPO_Always; 9766 CHECK_PARSE("SpaceBeforeParens: Never", SpaceBeforeParens, 9767 FormatStyle::SBPO_Never); 9768 CHECK_PARSE("SpaceBeforeParens: Always", SpaceBeforeParens, 9769 FormatStyle::SBPO_Always); 9770 CHECK_PARSE("SpaceBeforeParens: ControlStatements", SpaceBeforeParens, 9771 FormatStyle::SBPO_ControlStatements); 9772 // For backward compatibility: 9773 CHECK_PARSE("SpaceAfterControlStatementKeyword: false", SpaceBeforeParens, 9774 FormatStyle::SBPO_Never); 9775 CHECK_PARSE("SpaceAfterControlStatementKeyword: true", SpaceBeforeParens, 9776 FormatStyle::SBPO_ControlStatements); 9777 9778 Style.ColumnLimit = 123; 9779 FormatStyle BaseStyle = getLLVMStyle(); 9780 CHECK_PARSE("BasedOnStyle: LLVM", ColumnLimit, BaseStyle.ColumnLimit); 9781 CHECK_PARSE("BasedOnStyle: LLVM\nColumnLimit: 1234", ColumnLimit, 1234u); 9782 9783 Style.BreakBeforeBraces = FormatStyle::BS_Stroustrup; 9784 CHECK_PARSE("BreakBeforeBraces: Attach", BreakBeforeBraces, 9785 FormatStyle::BS_Attach); 9786 CHECK_PARSE("BreakBeforeBraces: Linux", BreakBeforeBraces, 9787 FormatStyle::BS_Linux); 9788 CHECK_PARSE("BreakBeforeBraces: Mozilla", BreakBeforeBraces, 9789 FormatStyle::BS_Mozilla); 9790 CHECK_PARSE("BreakBeforeBraces: Stroustrup", BreakBeforeBraces, 9791 FormatStyle::BS_Stroustrup); 9792 CHECK_PARSE("BreakBeforeBraces: Allman", BreakBeforeBraces, 9793 FormatStyle::BS_Allman); 9794 CHECK_PARSE("BreakBeforeBraces: GNU", BreakBeforeBraces, FormatStyle::BS_GNU); 9795 CHECK_PARSE("BreakBeforeBraces: WebKit", BreakBeforeBraces, 9796 FormatStyle::BS_WebKit); 9797 CHECK_PARSE("BreakBeforeBraces: Custom", BreakBeforeBraces, 9798 FormatStyle::BS_Custom); 9799 9800 Style.AlwaysBreakAfterDefinitionReturnType = FormatStyle::DRTBS_All; 9801 CHECK_PARSE("AlwaysBreakAfterDefinitionReturnType: None", 9802 AlwaysBreakAfterDefinitionReturnType, FormatStyle::DRTBS_None); 9803 CHECK_PARSE("AlwaysBreakAfterDefinitionReturnType: All", 9804 AlwaysBreakAfterDefinitionReturnType, FormatStyle::DRTBS_All); 9805 CHECK_PARSE("AlwaysBreakAfterDefinitionReturnType: TopLevel", 9806 AlwaysBreakAfterDefinitionReturnType, 9807 FormatStyle::DRTBS_TopLevel); 9808 9809 Style.NamespaceIndentation = FormatStyle::NI_All; 9810 CHECK_PARSE("NamespaceIndentation: None", NamespaceIndentation, 9811 FormatStyle::NI_None); 9812 CHECK_PARSE("NamespaceIndentation: Inner", NamespaceIndentation, 9813 FormatStyle::NI_Inner); 9814 CHECK_PARSE("NamespaceIndentation: All", NamespaceIndentation, 9815 FormatStyle::NI_All); 9816 9817 // FIXME: This is required because parsing a configuration simply overwrites 9818 // the first N elements of the list instead of resetting it. 9819 Style.ForEachMacros.clear(); 9820 std::vector<std::string> BoostForeach; 9821 BoostForeach.push_back("BOOST_FOREACH"); 9822 CHECK_PARSE("ForEachMacros: [BOOST_FOREACH]", ForEachMacros, BoostForeach); 9823 std::vector<std::string> BoostAndQForeach; 9824 BoostAndQForeach.push_back("BOOST_FOREACH"); 9825 BoostAndQForeach.push_back("Q_FOREACH"); 9826 CHECK_PARSE("ForEachMacros: [BOOST_FOREACH, Q_FOREACH]", ForEachMacros, 9827 BoostAndQForeach); 9828 9829 Style.IncludeCategories.clear(); 9830 std::vector<FormatStyle::IncludeCategory> ExpectedCategories = {{"abc/.*", 2}, 9831 {".*", 1}}; 9832 CHECK_PARSE("IncludeCategories:\n" 9833 " - Regex: abc/.*\n" 9834 " Priority: 2\n" 9835 " - Regex: .*\n" 9836 " Priority: 1", 9837 IncludeCategories, ExpectedCategories); 9838 } 9839 9840 TEST_F(FormatTest, ParsesConfigurationWithLanguages) { 9841 FormatStyle Style = {}; 9842 Style.Language = FormatStyle::LK_Cpp; 9843 CHECK_PARSE("Language: Cpp\n" 9844 "IndentWidth: 12", 9845 IndentWidth, 12u); 9846 EXPECT_EQ(parseConfiguration("Language: JavaScript\n" 9847 "IndentWidth: 34", 9848 &Style), 9849 ParseError::Unsuitable); 9850 EXPECT_EQ(12u, Style.IndentWidth); 9851 CHECK_PARSE("IndentWidth: 56", IndentWidth, 56u); 9852 EXPECT_EQ(FormatStyle::LK_Cpp, Style.Language); 9853 9854 Style.Language = FormatStyle::LK_JavaScript; 9855 CHECK_PARSE("Language: JavaScript\n" 9856 "IndentWidth: 12", 9857 IndentWidth, 12u); 9858 CHECK_PARSE("IndentWidth: 23", IndentWidth, 23u); 9859 EXPECT_EQ(parseConfiguration("Language: Cpp\n" 9860 "IndentWidth: 34", 9861 &Style), 9862 ParseError::Unsuitable); 9863 EXPECT_EQ(23u, Style.IndentWidth); 9864 CHECK_PARSE("IndentWidth: 56", IndentWidth, 56u); 9865 EXPECT_EQ(FormatStyle::LK_JavaScript, Style.Language); 9866 9867 CHECK_PARSE("BasedOnStyle: LLVM\n" 9868 "IndentWidth: 67", 9869 IndentWidth, 67u); 9870 9871 CHECK_PARSE("---\n" 9872 "Language: JavaScript\n" 9873 "IndentWidth: 12\n" 9874 "---\n" 9875 "Language: Cpp\n" 9876 "IndentWidth: 34\n" 9877 "...\n", 9878 IndentWidth, 12u); 9879 9880 Style.Language = FormatStyle::LK_Cpp; 9881 CHECK_PARSE("---\n" 9882 "Language: JavaScript\n" 9883 "IndentWidth: 12\n" 9884 "---\n" 9885 "Language: Cpp\n" 9886 "IndentWidth: 34\n" 9887 "...\n", 9888 IndentWidth, 34u); 9889 CHECK_PARSE("---\n" 9890 "IndentWidth: 78\n" 9891 "---\n" 9892 "Language: JavaScript\n" 9893 "IndentWidth: 56\n" 9894 "...\n", 9895 IndentWidth, 78u); 9896 9897 Style.ColumnLimit = 123; 9898 Style.IndentWidth = 234; 9899 Style.BreakBeforeBraces = FormatStyle::BS_Linux; 9900 Style.TabWidth = 345; 9901 EXPECT_FALSE(parseConfiguration("---\n" 9902 "IndentWidth: 456\n" 9903 "BreakBeforeBraces: Allman\n" 9904 "---\n" 9905 "Language: JavaScript\n" 9906 "IndentWidth: 111\n" 9907 "TabWidth: 111\n" 9908 "---\n" 9909 "Language: Cpp\n" 9910 "BreakBeforeBraces: Stroustrup\n" 9911 "TabWidth: 789\n" 9912 "...\n", 9913 &Style)); 9914 EXPECT_EQ(123u, Style.ColumnLimit); 9915 EXPECT_EQ(456u, Style.IndentWidth); 9916 EXPECT_EQ(FormatStyle::BS_Stroustrup, Style.BreakBeforeBraces); 9917 EXPECT_EQ(789u, Style.TabWidth); 9918 9919 EXPECT_EQ(parseConfiguration("---\n" 9920 "Language: JavaScript\n" 9921 "IndentWidth: 56\n" 9922 "---\n" 9923 "IndentWidth: 78\n" 9924 "...\n", 9925 &Style), 9926 ParseError::Error); 9927 EXPECT_EQ(parseConfiguration("---\n" 9928 "Language: JavaScript\n" 9929 "IndentWidth: 56\n" 9930 "---\n" 9931 "Language: JavaScript\n" 9932 "IndentWidth: 78\n" 9933 "...\n", 9934 &Style), 9935 ParseError::Error); 9936 9937 EXPECT_EQ(FormatStyle::LK_Cpp, Style.Language); 9938 } 9939 9940 #undef CHECK_PARSE 9941 9942 TEST_F(FormatTest, UsesLanguageForBasedOnStyle) { 9943 FormatStyle Style = {}; 9944 Style.Language = FormatStyle::LK_JavaScript; 9945 Style.BreakBeforeTernaryOperators = true; 9946 EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google", &Style).value()); 9947 EXPECT_FALSE(Style.BreakBeforeTernaryOperators); 9948 9949 Style.BreakBeforeTernaryOperators = true; 9950 EXPECT_EQ(0, parseConfiguration("---\n" 9951 "BasedOnStyle: Google\n" 9952 "---\n" 9953 "Language: JavaScript\n" 9954 "IndentWidth: 76\n" 9955 "...\n", 9956 &Style) 9957 .value()); 9958 EXPECT_FALSE(Style.BreakBeforeTernaryOperators); 9959 EXPECT_EQ(76u, Style.IndentWidth); 9960 EXPECT_EQ(FormatStyle::LK_JavaScript, Style.Language); 9961 } 9962 9963 TEST_F(FormatTest, ConfigurationRoundTripTest) { 9964 FormatStyle Style = getLLVMStyle(); 9965 std::string YAML = configurationAsText(Style); 9966 FormatStyle ParsedStyle = {}; 9967 ParsedStyle.Language = FormatStyle::LK_Cpp; 9968 EXPECT_EQ(0, parseConfiguration(YAML, &ParsedStyle).value()); 9969 EXPECT_EQ(Style, ParsedStyle); 9970 } 9971 9972 TEST_F(FormatTest, WorksFor8bitEncodings) { 9973 EXPECT_EQ("\"\xce\xe4\xed\xe0\xe6\xe4\xfb \xe2 \"\n" 9974 "\"\xf1\xf2\xf3\xe4\xb8\xed\xf3\xfe \"\n" 9975 "\"\xe7\xe8\xec\xed\xfe\xfe \"\n" 9976 "\"\xef\xee\xf0\xf3...\"", 9977 format("\"\xce\xe4\xed\xe0\xe6\xe4\xfb \xe2 " 9978 "\xf1\xf2\xf3\xe4\xb8\xed\xf3\xfe \xe7\xe8\xec\xed\xfe\xfe " 9979 "\xef\xee\xf0\xf3...\"", 9980 getLLVMStyleWithColumns(12))); 9981 } 9982 9983 TEST_F(FormatTest, HandlesUTF8BOM) { 9984 EXPECT_EQ("\xef\xbb\xbf", format("\xef\xbb\xbf")); 9985 EXPECT_EQ("\xef\xbb\xbf#include <iostream>", 9986 format("\xef\xbb\xbf#include <iostream>")); 9987 EXPECT_EQ("\xef\xbb\xbf\n#include <iostream>", 9988 format("\xef\xbb\xbf\n#include <iostream>")); 9989 } 9990 9991 // FIXME: Encode Cyrillic and CJK characters below to appease MS compilers. 9992 #if !defined(_MSC_VER) 9993 9994 TEST_F(FormatTest, CountsUTF8CharactersProperly) { 9995 verifyFormat("\"Однажды в студёную зимнюю пору...\"", 9996 getLLVMStyleWithColumns(35)); 9997 verifyFormat("\"一 二 三 四 五 六 七 八 九 十\"", 9998 getLLVMStyleWithColumns(31)); 9999 verifyFormat("// Однажды в студёную зимнюю пору...", 10000 getLLVMStyleWithColumns(36)); 10001 verifyFormat("// 一 二 三 四 五 六 七 八 九 十", getLLVMStyleWithColumns(32)); 10002 verifyFormat("/* Однажды в студёную зимнюю пору... */", 10003 getLLVMStyleWithColumns(39)); 10004 verifyFormat("/* 一 二 三 四 五 六 七 八 九 十 */", 10005 getLLVMStyleWithColumns(35)); 10006 } 10007 10008 TEST_F(FormatTest, SplitsUTF8Strings) { 10009 // Non-printable characters' width is currently considered to be the length in 10010 // bytes in UTF8. The characters can be displayed in very different manner 10011 // (zero-width, single width with a substitution glyph, expanded to their code 10012 // (e.g. "<8d>"), so there's no single correct way to handle them. 10013 EXPECT_EQ("\"aaaaÄ\"\n" 10014 "\"\xc2\x8d\";", 10015 format("\"aaaaÄ\xc2\x8d\";", getLLVMStyleWithColumns(10))); 10016 EXPECT_EQ("\"aaaaaaaÄ\"\n" 10017 "\"\xc2\x8d\";", 10018 format("\"aaaaaaaÄ\xc2\x8d\";", getLLVMStyleWithColumns(10))); 10019 EXPECT_EQ("\"Однажды, в \"\n" 10020 "\"студёную \"\n" 10021 "\"зимнюю \"\n" 10022 "\"пору,\"", 10023 format("\"Однажды, в студёную зимнюю пору,\"", 10024 getLLVMStyleWithColumns(13))); 10025 EXPECT_EQ( 10026 "\"一 二 三 \"\n" 10027 "\"四 五六 \"\n" 10028 "\"七 八 九 \"\n" 10029 "\"十\"", 10030 format("\"一 二 三 四 五六 七 八 九 十\"", getLLVMStyleWithColumns(11))); 10031 EXPECT_EQ("\"一\t二 \"\n" 10032 "\"\t三 \"\n" 10033 "\"四 五\t六 \"\n" 10034 "\"\t七 \"\n" 10035 "\"八九十\tqq\"", 10036 format("\"一\t二 \t三 四 五\t六 \t七 八九十\tqq\"", 10037 getLLVMStyleWithColumns(11))); 10038 10039 // UTF8 character in an escape sequence. 10040 EXPECT_EQ("\"aaaaaa\"\n" 10041 "\"\\\xC2\x8D\"", 10042 format("\"aaaaaa\\\xC2\x8D\"", getLLVMStyleWithColumns(10))); 10043 } 10044 10045 TEST_F(FormatTest, HandlesDoubleWidthCharsInMultiLineStrings) { 10046 EXPECT_EQ("const char *sssss =\n" 10047 " \"一二三四五六七八\\\n" 10048 " 九 十\";", 10049 format("const char *sssss = \"一二三四五六七八\\\n" 10050 " 九 十\";", 10051 getLLVMStyleWithColumns(30))); 10052 } 10053 10054 TEST_F(FormatTest, SplitsUTF8LineComments) { 10055 EXPECT_EQ("// aaaaÄ\xc2\x8d", 10056 format("// aaaaÄ\xc2\x8d", getLLVMStyleWithColumns(10))); 10057 EXPECT_EQ("// Я из лесу\n" 10058 "// вышел; был\n" 10059 "// сильный\n" 10060 "// мороз.", 10061 format("// Я из лесу вышел; был сильный мороз.", 10062 getLLVMStyleWithColumns(13))); 10063 EXPECT_EQ("// 一二三\n" 10064 "// 四五六七\n" 10065 "// 八 九\n" 10066 "// 十", 10067 format("// 一二三 四五六七 八 九 十", getLLVMStyleWithColumns(9))); 10068 } 10069 10070 TEST_F(FormatTest, SplitsUTF8BlockComments) { 10071 EXPECT_EQ("/* Гляжу,\n" 10072 " * поднимается\n" 10073 " * медленно в\n" 10074 " * гору\n" 10075 " * Лошадка,\n" 10076 " * везущая\n" 10077 " * хворосту\n" 10078 " * воз. */", 10079 format("/* Гляжу, поднимается медленно в гору\n" 10080 " * Лошадка, везущая хворосту воз. */", 10081 getLLVMStyleWithColumns(13))); 10082 EXPECT_EQ( 10083 "/* 一二三\n" 10084 " * 四五六七\n" 10085 " * 八 九\n" 10086 " * 十 */", 10087 format("/* 一二三 四五六七 八 九 十 */", getLLVMStyleWithColumns(9))); 10088 EXPECT_EQ("/* �������� ��������\n" 10089 " * ��������\n" 10090 " * ������-�� */", 10091 format("/* �������� �������� �������� ������-�� */", getLLVMStyleWithColumns(12))); 10092 } 10093 10094 #endif // _MSC_VER 10095 10096 TEST_F(FormatTest, ConstructorInitializerIndentWidth) { 10097 FormatStyle Style = getLLVMStyle(); 10098 10099 Style.ConstructorInitializerIndentWidth = 4; 10100 verifyFormat( 10101 "SomeClass::Constructor()\n" 10102 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 10103 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}", 10104 Style); 10105 10106 Style.ConstructorInitializerIndentWidth = 2; 10107 verifyFormat( 10108 "SomeClass::Constructor()\n" 10109 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 10110 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}", 10111 Style); 10112 10113 Style.ConstructorInitializerIndentWidth = 0; 10114 verifyFormat( 10115 "SomeClass::Constructor()\n" 10116 ": aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 10117 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}", 10118 Style); 10119 } 10120 10121 TEST_F(FormatTest, BreakConstructorInitializersBeforeComma) { 10122 FormatStyle Style = getLLVMStyle(); 10123 Style.BreakConstructorInitializersBeforeComma = true; 10124 Style.ConstructorInitializerIndentWidth = 4; 10125 verifyFormat("SomeClass::Constructor()\n" 10126 " : a(a)\n" 10127 " , b(b)\n" 10128 " , c(c) {}", 10129 Style); 10130 verifyFormat("SomeClass::Constructor()\n" 10131 " : a(a) {}", 10132 Style); 10133 10134 Style.ColumnLimit = 0; 10135 verifyFormat("SomeClass::Constructor()\n" 10136 " : a(a) {}", 10137 Style); 10138 verifyFormat("SomeClass::Constructor()\n" 10139 " : a(a)\n" 10140 " , b(b)\n" 10141 " , c(c) {}", 10142 Style); 10143 verifyFormat("SomeClass::Constructor()\n" 10144 " : a(a) {\n" 10145 " foo();\n" 10146 " bar();\n" 10147 "}", 10148 Style); 10149 10150 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_None; 10151 verifyFormat("SomeClass::Constructor()\n" 10152 " : a(a)\n" 10153 " , b(b)\n" 10154 " , c(c) {\n}", 10155 Style); 10156 verifyFormat("SomeClass::Constructor()\n" 10157 " : a(a) {\n}", 10158 Style); 10159 10160 Style.ColumnLimit = 80; 10161 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_All; 10162 Style.ConstructorInitializerIndentWidth = 2; 10163 verifyFormat("SomeClass::Constructor()\n" 10164 " : a(a)\n" 10165 " , b(b)\n" 10166 " , c(c) {}", 10167 Style); 10168 10169 Style.ConstructorInitializerIndentWidth = 0; 10170 verifyFormat("SomeClass::Constructor()\n" 10171 ": a(a)\n" 10172 ", b(b)\n" 10173 ", c(c) {}", 10174 Style); 10175 10176 Style.ConstructorInitializerAllOnOneLineOrOnePerLine = true; 10177 Style.ConstructorInitializerIndentWidth = 4; 10178 verifyFormat("SomeClass::Constructor() : aaaaaaaa(aaaaaaaa) {}", Style); 10179 verifyFormat( 10180 "SomeClass::Constructor() : aaaaa(aaaaa), aaaaa(aaaaa), aaaaa(aaaaa)\n", 10181 Style); 10182 verifyFormat( 10183 "SomeClass::Constructor()\n" 10184 " : aaaaaaaa(aaaaaaaa), aaaaaaaa(aaaaaaaa), aaaaaaaa(aaaaaaaa) {}", 10185 Style); 10186 Style.ConstructorInitializerIndentWidth = 4; 10187 Style.ColumnLimit = 60; 10188 verifyFormat("SomeClass::Constructor()\n" 10189 " : aaaaaaaa(aaaaaaaa)\n" 10190 " , aaaaaaaa(aaaaaaaa)\n" 10191 " , aaaaaaaa(aaaaaaaa) {}", 10192 Style); 10193 } 10194 10195 TEST_F(FormatTest, Destructors) { 10196 verifyFormat("void F(int &i) { i.~int(); }"); 10197 verifyFormat("void F(int &i) { i->~int(); }"); 10198 } 10199 10200 TEST_F(FormatTest, FormatsWithWebKitStyle) { 10201 FormatStyle Style = getWebKitStyle(); 10202 10203 // Don't indent in outer namespaces. 10204 verifyFormat("namespace outer {\n" 10205 "int i;\n" 10206 "namespace inner {\n" 10207 " int i;\n" 10208 "} // namespace inner\n" 10209 "} // namespace outer\n" 10210 "namespace other_outer {\n" 10211 "int i;\n" 10212 "}", 10213 Style); 10214 10215 // Don't indent case labels. 10216 verifyFormat("switch (variable) {\n" 10217 "case 1:\n" 10218 "case 2:\n" 10219 " doSomething();\n" 10220 " break;\n" 10221 "default:\n" 10222 " ++variable;\n" 10223 "}", 10224 Style); 10225 10226 // Wrap before binary operators. 10227 EXPECT_EQ("void f()\n" 10228 "{\n" 10229 " if (aaaaaaaaaaaaaaaa\n" 10230 " && bbbbbbbbbbbbbbbbbbbbbbbb\n" 10231 " && (cccccccccccccccccccccccccc || dddddddddddddddddddd))\n" 10232 " return;\n" 10233 "}", 10234 format("void f() {\n" 10235 "if (aaaaaaaaaaaaaaaa\n" 10236 "&& bbbbbbbbbbbbbbbbbbbbbbbb\n" 10237 "&& (cccccccccccccccccccccccccc || dddddddddddddddddddd))\n" 10238 "return;\n" 10239 "}", 10240 Style)); 10241 10242 // Allow functions on a single line. 10243 verifyFormat("void f() { return; }", Style); 10244 10245 // Constructor initializers are formatted one per line with the "," on the 10246 // new line. 10247 verifyFormat("Constructor()\n" 10248 " : aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 10249 " , aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaa, // break\n" 10250 " aaaaaaaaaaaaaa)\n" 10251 " , aaaaaaaaaaaaaaaaaaaaaaa()\n" 10252 "{\n" 10253 "}", 10254 Style); 10255 verifyFormat("SomeClass::Constructor()\n" 10256 " : a(a)\n" 10257 "{\n" 10258 "}", 10259 Style); 10260 EXPECT_EQ("SomeClass::Constructor()\n" 10261 " : a(a)\n" 10262 "{\n" 10263 "}", 10264 format("SomeClass::Constructor():a(a){}", Style)); 10265 verifyFormat("SomeClass::Constructor()\n" 10266 " : a(a)\n" 10267 " , b(b)\n" 10268 " , c(c)\n" 10269 "{\n" 10270 "}", 10271 Style); 10272 verifyFormat("SomeClass::Constructor()\n" 10273 " : a(a)\n" 10274 "{\n" 10275 " foo();\n" 10276 " bar();\n" 10277 "}", 10278 Style); 10279 10280 // Access specifiers should be aligned left. 10281 verifyFormat("class C {\n" 10282 "public:\n" 10283 " int i;\n" 10284 "};", 10285 Style); 10286 10287 // Do not align comments. 10288 verifyFormat("int a; // Do not\n" 10289 "double b; // align comments.", 10290 Style); 10291 10292 // Do not align operands. 10293 EXPECT_EQ("ASSERT(aaaa\n" 10294 " || bbbb);", 10295 format("ASSERT ( aaaa\n||bbbb);", Style)); 10296 10297 // Accept input's line breaks. 10298 EXPECT_EQ("if (aaaaaaaaaaaaaaa\n" 10299 " || bbbbbbbbbbbbbbb) {\n" 10300 " i++;\n" 10301 "}", 10302 format("if (aaaaaaaaaaaaaaa\n" 10303 "|| bbbbbbbbbbbbbbb) { i++; }", 10304 Style)); 10305 EXPECT_EQ("if (aaaaaaaaaaaaaaa || bbbbbbbbbbbbbbb) {\n" 10306 " i++;\n" 10307 "}", 10308 format("if (aaaaaaaaaaaaaaa || bbbbbbbbbbbbbbb) { i++; }", Style)); 10309 10310 // Don't automatically break all macro definitions (llvm.org/PR17842). 10311 verifyFormat("#define aNumber 10", Style); 10312 // However, generally keep the line breaks that the user authored. 10313 EXPECT_EQ("#define aNumber \\\n" 10314 " 10", 10315 format("#define aNumber \\\n" 10316 " 10", 10317 Style)); 10318 10319 // Keep empty and one-element array literals on a single line. 10320 EXPECT_EQ("NSArray* a = [[NSArray alloc] initWithArray:@[]\n" 10321 " copyItems:YES];", 10322 format("NSArray*a=[[NSArray alloc] initWithArray:@[]\n" 10323 "copyItems:YES];", 10324 Style)); 10325 EXPECT_EQ("NSArray* a = [[NSArray alloc] initWithArray:@[ @\"a\" ]\n" 10326 " copyItems:YES];", 10327 format("NSArray*a=[[NSArray alloc]initWithArray:@[ @\"a\" ]\n" 10328 " copyItems:YES];", 10329 Style)); 10330 // FIXME: This does not seem right, there should be more indentation before 10331 // the array literal's entries. Nested blocks have the same problem. 10332 EXPECT_EQ("NSArray* a = [[NSArray alloc] initWithArray:@[\n" 10333 " @\"a\",\n" 10334 " @\"a\"\n" 10335 "]\n" 10336 " copyItems:YES];", 10337 format("NSArray* a = [[NSArray alloc] initWithArray:@[\n" 10338 " @\"a\",\n" 10339 " @\"a\"\n" 10340 " ]\n" 10341 " copyItems:YES];", 10342 Style)); 10343 EXPECT_EQ( 10344 "NSArray* a = [[NSArray alloc] initWithArray:@[ @\"a\", @\"a\" ]\n" 10345 " copyItems:YES];", 10346 format("NSArray* a = [[NSArray alloc] initWithArray:@[ @\"a\", @\"a\" ]\n" 10347 " copyItems:YES];", 10348 Style)); 10349 10350 verifyFormat("[self.a b:c c:d];", Style); 10351 EXPECT_EQ("[self.a b:c\n" 10352 " c:d];", 10353 format("[self.a b:c\n" 10354 "c:d];", 10355 Style)); 10356 } 10357 10358 TEST_F(FormatTest, FormatsLambdas) { 10359 verifyFormat("int c = [b]() mutable { return [&b] { return b++; }(); }();\n"); 10360 verifyFormat("int c = [&] { [=] { return b++; }(); }();\n"); 10361 verifyFormat("int c = [&, &a, a] { [=, c, &d] { return b++; }(); }();\n"); 10362 verifyFormat("int c = [&a, &a, a] { [=, a, b, &c] { return b++; }(); }();\n"); 10363 verifyFormat("auto c = {[&a, &a, a] { [=, a, b, &c] { return b++; }(); }}\n"); 10364 verifyFormat("auto c = {[&a, &a, a] { [=, a, b, &c] {}(); }}\n"); 10365 verifyFormat("void f() {\n" 10366 " other(x.begin(), x.end(), [&](int, int) { return 1; });\n" 10367 "}\n"); 10368 verifyFormat("void f() {\n" 10369 " other(x.begin(), //\n" 10370 " x.end(), //\n" 10371 " [&](int, int) { return 1; });\n" 10372 "}\n"); 10373 verifyFormat("SomeFunction([]() { // A cool function...\n" 10374 " return 43;\n" 10375 "});"); 10376 EXPECT_EQ("SomeFunction([]() {\n" 10377 "#define A a\n" 10378 " return 43;\n" 10379 "});", 10380 format("SomeFunction([](){\n" 10381 "#define A a\n" 10382 "return 43;\n" 10383 "});")); 10384 verifyFormat("void f() {\n" 10385 " SomeFunction([](decltype(x), A *a) {});\n" 10386 "}"); 10387 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 10388 " [](const aaaaaaaaaa &a) { return a; });"); 10389 verifyFormat("string abc = SomeFunction(aaaaaaaaaaaaa, aaaaa, []() {\n" 10390 " SomeOtherFunctioooooooooooooooooooooooooon();\n" 10391 "});"); 10392 verifyFormat("Constructor()\n" 10393 " : Field([] { // comment\n" 10394 " int i;\n" 10395 " }) {}"); 10396 verifyFormat("auto my_lambda = [](const string &some_parameter) {\n" 10397 " return some_parameter.size();\n" 10398 "};"); 10399 verifyFormat("int i = aaaaaa ? 1 //\n" 10400 " : [] {\n" 10401 " return 2; //\n" 10402 " }();"); 10403 verifyFormat("llvm::errs() << \"number of twos is \"\n" 10404 " << std::count_if(v.begin(), v.end(), [](int x) {\n" 10405 " return x == 2; // force break\n" 10406 " });"); 10407 verifyFormat("return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa([=](\n" 10408 " int iiiiiiiiiiii) {\n" 10409 " return aaaaaaaaaaaaaaaaaaaaaaa != aaaaaaaaaaaaaaaaaaaaaaa;\n" 10410 "});", 10411 getLLVMStyleWithColumns(60)); 10412 verifyFormat("SomeFunction({[&] {\n" 10413 " // comment\n" 10414 " },\n" 10415 " [&] {\n" 10416 " // comment\n" 10417 " }});"); 10418 verifyFormat("SomeFunction({[&] {\n" 10419 " // comment\n" 10420 "}});"); 10421 verifyFormat("virtual aaaaaaaaaaaaaaaa(std::function<bool()> bbbbbbbbbbbb =\n" 10422 " [&]() { return true; },\n" 10423 " aaaaa aaaaaaaaa);"); 10424 10425 // Lambdas with return types. 10426 verifyFormat("int c = []() -> int { return 2; }();\n"); 10427 verifyFormat("int c = []() -> int * { return 2; }();\n"); 10428 verifyFormat("int c = []() -> vector<int> { return {2}; }();\n"); 10429 verifyFormat("Foo([]() -> std::vector<int> { return {2}; }());"); 10430 verifyGoogleFormat("auto a = [&b, c](D* d) -> D* {};"); 10431 verifyGoogleFormat("auto a = [&b, c](D* d) -> pair<D*, D*> {};"); 10432 verifyGoogleFormat("auto a = [&b, c](D* d) -> D& {};"); 10433 verifyGoogleFormat("auto a = [&b, c](D* d) -> const D* {};"); 10434 verifyFormat("[a, a]() -> a<1> {};"); 10435 verifyFormat("auto aaaaaaaa = [](int i, // break for some reason\n" 10436 " int j) -> int {\n" 10437 " return ffffffffffffffffffffffffffffffffffffffffffff(i * j);\n" 10438 "};"); 10439 verifyFormat( 10440 "aaaaaaaaaaaaaaaaaaaaaa(\n" 10441 " [](aaaaaaaaaaaaaaaaaaaaaaaaaaa &aaa) -> aaaaaaaaaaaaaaaa {\n" 10442 " return aaaaaaaaaaaaaaaaa;\n" 10443 " });", 10444 getLLVMStyleWithColumns(70)); 10445 10446 // Multiple lambdas in the same parentheses change indentation rules. 10447 verifyFormat("SomeFunction(\n" 10448 " []() {\n" 10449 " int i = 42;\n" 10450 " return i;\n" 10451 " },\n" 10452 " []() {\n" 10453 " int j = 43;\n" 10454 " return j;\n" 10455 " });"); 10456 10457 // More complex introducers. 10458 verifyFormat("return [i, args...] {};"); 10459 10460 // Not lambdas. 10461 verifyFormat("constexpr char hello[]{\"hello\"};"); 10462 verifyFormat("double &operator[](int i) { return 0; }\n" 10463 "int i;"); 10464 verifyFormat("std::unique_ptr<int[]> foo() {}"); 10465 verifyFormat("int i = a[a][a]->f();"); 10466 verifyFormat("int i = (*b)[a]->f();"); 10467 10468 // Other corner cases. 10469 verifyFormat("void f() {\n" 10470 " bar([]() {} // Did not respect SpacesBeforeTrailingComments\n" 10471 " );\n" 10472 "}"); 10473 10474 // Lambdas created through weird macros. 10475 verifyFormat("void f() {\n" 10476 " MACRO((const AA &a) { return 1; });\n" 10477 "}"); 10478 10479 verifyFormat("if (blah_blah(whatever, whatever, [] {\n" 10480 " doo_dah();\n" 10481 " doo_dah();\n" 10482 " })) {\n" 10483 "}"); 10484 verifyFormat("auto lambda = []() {\n" 10485 " int a = 2\n" 10486 "#if A\n" 10487 " + 2\n" 10488 "#endif\n" 10489 " ;\n" 10490 "};"); 10491 } 10492 10493 TEST_F(FormatTest, FormatsBlocks) { 10494 FormatStyle ShortBlocks = getLLVMStyle(); 10495 ShortBlocks.AllowShortBlocksOnASingleLine = true; 10496 verifyFormat("int (^Block)(int, int);", ShortBlocks); 10497 verifyFormat("int (^Block1)(int, int) = ^(int i, int j)", ShortBlocks); 10498 verifyFormat("void (^block)(int) = ^(id test) { int i; };", ShortBlocks); 10499 verifyFormat("void (^block)(int) = ^(int test) { int i; };", ShortBlocks); 10500 verifyFormat("void (^block)(int) = ^id(int test) { int i; };", ShortBlocks); 10501 verifyFormat("void (^block)(int) = ^int(int test) { int i; };", ShortBlocks); 10502 10503 verifyFormat("foo(^{ bar(); });", ShortBlocks); 10504 verifyFormat("foo(a, ^{ bar(); });", ShortBlocks); 10505 verifyFormat("{ void (^block)(Object *x); }", ShortBlocks); 10506 10507 verifyFormat("[operation setCompletionBlock:^{\n" 10508 " [self onOperationDone];\n" 10509 "}];"); 10510 verifyFormat("int i = {[operation setCompletionBlock:^{\n" 10511 " [self onOperationDone];\n" 10512 "}]};"); 10513 verifyFormat("[operation setCompletionBlock:^(int *i) {\n" 10514 " f();\n" 10515 "}];"); 10516 verifyFormat("int a = [operation block:^int(int *i) {\n" 10517 " return 1;\n" 10518 "}];"); 10519 verifyFormat("[myObject doSomethingWith:arg1\n" 10520 " aaa:^int(int *a) {\n" 10521 " return 1;\n" 10522 " }\n" 10523 " bbb:f(a * bbbbbbbb)];"); 10524 10525 verifyFormat("[operation setCompletionBlock:^{\n" 10526 " [self.delegate newDataAvailable];\n" 10527 "}];", 10528 getLLVMStyleWithColumns(60)); 10529 verifyFormat("dispatch_async(_fileIOQueue, ^{\n" 10530 " NSString *path = [self sessionFilePath];\n" 10531 " if (path) {\n" 10532 " // ...\n" 10533 " }\n" 10534 "});"); 10535 verifyFormat("[[SessionService sharedService]\n" 10536 " loadWindowWithCompletionBlock:^(SessionWindow *window) {\n" 10537 " if (window) {\n" 10538 " [self windowDidLoad:window];\n" 10539 " } else {\n" 10540 " [self errorLoadingWindow];\n" 10541 " }\n" 10542 " }];"); 10543 verifyFormat("void (^largeBlock)(void) = ^{\n" 10544 " // ...\n" 10545 "};\n", 10546 getLLVMStyleWithColumns(40)); 10547 verifyFormat("[[SessionService sharedService]\n" 10548 " loadWindowWithCompletionBlock: //\n" 10549 " ^(SessionWindow *window) {\n" 10550 " if (window) {\n" 10551 " [self windowDidLoad:window];\n" 10552 " } else {\n" 10553 " [self errorLoadingWindow];\n" 10554 " }\n" 10555 " }];", 10556 getLLVMStyleWithColumns(60)); 10557 verifyFormat("[myObject doSomethingWith:arg1\n" 10558 " firstBlock:^(Foo *a) {\n" 10559 " // ...\n" 10560 " int i;\n" 10561 " }\n" 10562 " secondBlock:^(Bar *b) {\n" 10563 " // ...\n" 10564 " int i;\n" 10565 " }\n" 10566 " thirdBlock:^Foo(Bar *b) {\n" 10567 " // ...\n" 10568 " int i;\n" 10569 " }];"); 10570 verifyFormat("[myObject doSomethingWith:arg1\n" 10571 " firstBlock:-1\n" 10572 " secondBlock:^(Bar *b) {\n" 10573 " // ...\n" 10574 " int i;\n" 10575 " }];"); 10576 10577 verifyFormat("f(^{\n" 10578 " @autoreleasepool {\n" 10579 " if (a) {\n" 10580 " g();\n" 10581 " }\n" 10582 " }\n" 10583 "});"); 10584 verifyFormat("Block b = ^int *(A *a, B *b) {}"); 10585 10586 FormatStyle FourIndent = getLLVMStyle(); 10587 FourIndent.ObjCBlockIndentWidth = 4; 10588 verifyFormat("[operation setCompletionBlock:^{\n" 10589 " [self onOperationDone];\n" 10590 "}];", 10591 FourIndent); 10592 } 10593 10594 TEST_F(FormatTest, FormatsBlocksWithZeroColumnWidth) { 10595 FormatStyle ZeroColumn = getLLVMStyle(); 10596 ZeroColumn.ColumnLimit = 0; 10597 10598 verifyFormat("[[SessionService sharedService] " 10599 "loadWindowWithCompletionBlock:^(SessionWindow *window) {\n" 10600 " if (window) {\n" 10601 " [self windowDidLoad:window];\n" 10602 " } else {\n" 10603 " [self errorLoadingWindow];\n" 10604 " }\n" 10605 "}];", 10606 ZeroColumn); 10607 EXPECT_EQ("[[SessionService sharedService]\n" 10608 " loadWindowWithCompletionBlock:^(SessionWindow *window) {\n" 10609 " if (window) {\n" 10610 " [self windowDidLoad:window];\n" 10611 " } else {\n" 10612 " [self errorLoadingWindow];\n" 10613 " }\n" 10614 " }];", 10615 format("[[SessionService sharedService]\n" 10616 "loadWindowWithCompletionBlock:^(SessionWindow *window) {\n" 10617 " if (window) {\n" 10618 " [self windowDidLoad:window];\n" 10619 " } else {\n" 10620 " [self errorLoadingWindow];\n" 10621 " }\n" 10622 "}];", 10623 ZeroColumn)); 10624 verifyFormat("[myObject doSomethingWith:arg1\n" 10625 " firstBlock:^(Foo *a) {\n" 10626 " // ...\n" 10627 " int i;\n" 10628 " }\n" 10629 " secondBlock:^(Bar *b) {\n" 10630 " // ...\n" 10631 " int i;\n" 10632 " }\n" 10633 " thirdBlock:^Foo(Bar *b) {\n" 10634 " // ...\n" 10635 " int i;\n" 10636 " }];", 10637 ZeroColumn); 10638 verifyFormat("f(^{\n" 10639 " @autoreleasepool {\n" 10640 " if (a) {\n" 10641 " g();\n" 10642 " }\n" 10643 " }\n" 10644 "});", 10645 ZeroColumn); 10646 verifyFormat("void (^largeBlock)(void) = ^{\n" 10647 " // ...\n" 10648 "};", 10649 ZeroColumn); 10650 10651 ZeroColumn.AllowShortBlocksOnASingleLine = true; 10652 EXPECT_EQ("void (^largeBlock)(void) = ^{ int i; };", 10653 format("void (^largeBlock)(void) = ^{ int i; };", ZeroColumn)); 10654 ZeroColumn.AllowShortBlocksOnASingleLine = false; 10655 EXPECT_EQ("void (^largeBlock)(void) = ^{\n" 10656 " int i;\n" 10657 "};", 10658 format("void (^largeBlock)(void) = ^{ int i; };", ZeroColumn)); 10659 } 10660 10661 TEST_F(FormatTest, SupportsCRLF) { 10662 EXPECT_EQ("int a;\r\n" 10663 "int b;\r\n" 10664 "int c;\r\n", 10665 format("int a;\r\n" 10666 " int b;\r\n" 10667 " int c;\r\n", 10668 getLLVMStyle())); 10669 EXPECT_EQ("int a;\r\n" 10670 "int b;\r\n" 10671 "int c;\r\n", 10672 format("int a;\r\n" 10673 " int b;\n" 10674 " int c;\r\n", 10675 getLLVMStyle())); 10676 EXPECT_EQ("int a;\n" 10677 "int b;\n" 10678 "int c;\n", 10679 format("int a;\r\n" 10680 " int b;\n" 10681 " int c;\n", 10682 getLLVMStyle())); 10683 EXPECT_EQ("\"aaaaaaa \"\r\n" 10684 "\"bbbbbbb\";\r\n", 10685 format("\"aaaaaaa bbbbbbb\";\r\n", getLLVMStyleWithColumns(10))); 10686 EXPECT_EQ("#define A \\\r\n" 10687 " b; \\\r\n" 10688 " c; \\\r\n" 10689 " d;\r\n", 10690 format("#define A \\\r\n" 10691 " b; \\\r\n" 10692 " c; d; \r\n", 10693 getGoogleStyle())); 10694 10695 EXPECT_EQ("/*\r\n" 10696 "multi line block comments\r\n" 10697 "should not introduce\r\n" 10698 "an extra carriage return\r\n" 10699 "*/\r\n", 10700 format("/*\r\n" 10701 "multi line block comments\r\n" 10702 "should not introduce\r\n" 10703 "an extra carriage return\r\n" 10704 "*/\r\n")); 10705 } 10706 10707 TEST_F(FormatTest, MunchSemicolonAfterBlocks) { 10708 verifyFormat("MY_CLASS(C) {\n" 10709 " int i;\n" 10710 " int j;\n" 10711 "};"); 10712 } 10713 10714 TEST_F(FormatTest, ConfigurableContinuationIndentWidth) { 10715 FormatStyle TwoIndent = getLLVMStyleWithColumns(15); 10716 TwoIndent.ContinuationIndentWidth = 2; 10717 10718 EXPECT_EQ("int i =\n" 10719 " longFunction(\n" 10720 " arg);", 10721 format("int i = longFunction(arg);", TwoIndent)); 10722 10723 FormatStyle SixIndent = getLLVMStyleWithColumns(20); 10724 SixIndent.ContinuationIndentWidth = 6; 10725 10726 EXPECT_EQ("int i =\n" 10727 " longFunction(\n" 10728 " arg);", 10729 format("int i = longFunction(arg);", SixIndent)); 10730 } 10731 10732 TEST_F(FormatTest, SpacesInAngles) { 10733 FormatStyle Spaces = getLLVMStyle(); 10734 Spaces.SpacesInAngles = true; 10735 10736 verifyFormat("static_cast< int >(arg);", Spaces); 10737 verifyFormat("template < typename T0, typename T1 > void f() {}", Spaces); 10738 verifyFormat("f< int, float >();", Spaces); 10739 verifyFormat("template <> g() {}", Spaces); 10740 verifyFormat("template < std::vector< int > > f() {}", Spaces); 10741 verifyFormat("std::function< void(int, int) > fct;", Spaces); 10742 verifyFormat("void inFunction() { std::function< void(int, int) > fct; }", 10743 Spaces); 10744 10745 Spaces.Standard = FormatStyle::LS_Cpp03; 10746 Spaces.SpacesInAngles = true; 10747 verifyFormat("A< A< int > >();", Spaces); 10748 10749 Spaces.SpacesInAngles = false; 10750 verifyFormat("A<A<int> >();", Spaces); 10751 10752 Spaces.Standard = FormatStyle::LS_Cpp11; 10753 Spaces.SpacesInAngles = true; 10754 verifyFormat("A< A< int > >();", Spaces); 10755 10756 Spaces.SpacesInAngles = false; 10757 verifyFormat("A<A<int>>();", Spaces); 10758 } 10759 10760 TEST_F(FormatTest, TripleAngleBrackets) { 10761 verifyFormat("f<<<1, 1>>>();"); 10762 verifyFormat("f<<<1, 1, 1, s>>>();"); 10763 verifyFormat("f<<<a, b, c, d>>>();"); 10764 EXPECT_EQ("f<<<1, 1>>>();", format("f <<< 1, 1 >>> ();")); 10765 verifyFormat("f<param><<<1, 1>>>();"); 10766 verifyFormat("f<1><<<1, 1>>>();"); 10767 EXPECT_EQ("f<param><<<1, 1>>>();", format("f< param > <<< 1, 1 >>> ();")); 10768 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" 10769 "aaaaaaaaaaa<<<\n 1, 1>>>();"); 10770 } 10771 10772 TEST_F(FormatTest, MergeLessLessAtEnd) { 10773 verifyFormat("<<"); 10774 EXPECT_EQ("< < <", format("\\\n<<<")); 10775 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" 10776 "aaallvm::outs() <<"); 10777 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" 10778 "aaaallvm::outs()\n <<"); 10779 } 10780 10781 TEST_F(FormatTest, HandleUnbalancedImplicitBracesAcrossPPBranches) { 10782 std::string code = "#if A\n" 10783 "#if B\n" 10784 "a.\n" 10785 "#endif\n" 10786 " a = 1;\n" 10787 "#else\n" 10788 "#endif\n" 10789 "#if C\n" 10790 "#else\n" 10791 "#endif\n"; 10792 EXPECT_EQ(code, format(code)); 10793 } 10794 10795 TEST_F(FormatTest, HandleConflictMarkers) { 10796 // Git/SVN conflict markers. 10797 EXPECT_EQ("int a;\n" 10798 "void f() {\n" 10799 " callme(some(parameter1,\n" 10800 "<<<<<<< text by the vcs\n" 10801 " parameter2),\n" 10802 "||||||| text by the vcs\n" 10803 " parameter2),\n" 10804 " parameter3,\n" 10805 "======= text by the vcs\n" 10806 " parameter2, parameter3),\n" 10807 ">>>>>>> text by the vcs\n" 10808 " otherparameter);\n", 10809 format("int a;\n" 10810 "void f() {\n" 10811 " callme(some(parameter1,\n" 10812 "<<<<<<< text by the vcs\n" 10813 " parameter2),\n" 10814 "||||||| text by the vcs\n" 10815 " parameter2),\n" 10816 " parameter3,\n" 10817 "======= text by the vcs\n" 10818 " parameter2,\n" 10819 " parameter3),\n" 10820 ">>>>>>> text by the vcs\n" 10821 " otherparameter);\n")); 10822 10823 // Perforce markers. 10824 EXPECT_EQ("void f() {\n" 10825 " function(\n" 10826 ">>>> text by the vcs\n" 10827 " parameter,\n" 10828 "==== text by the vcs\n" 10829 " parameter,\n" 10830 "==== text by the vcs\n" 10831 " parameter,\n" 10832 "<<<< text by the vcs\n" 10833 " parameter);\n", 10834 format("void f() {\n" 10835 " function(\n" 10836 ">>>> text by the vcs\n" 10837 " parameter,\n" 10838 "==== text by the vcs\n" 10839 " parameter,\n" 10840 "==== text by the vcs\n" 10841 " parameter,\n" 10842 "<<<< text by the vcs\n" 10843 " parameter);\n")); 10844 10845 EXPECT_EQ("<<<<<<<\n" 10846 "|||||||\n" 10847 "=======\n" 10848 ">>>>>>>", 10849 format("<<<<<<<\n" 10850 "|||||||\n" 10851 "=======\n" 10852 ">>>>>>>")); 10853 10854 EXPECT_EQ("<<<<<<<\n" 10855 "|||||||\n" 10856 "int i;\n" 10857 "=======\n" 10858 ">>>>>>>", 10859 format("<<<<<<<\n" 10860 "|||||||\n" 10861 "int i;\n" 10862 "=======\n" 10863 ">>>>>>>")); 10864 10865 // FIXME: Handle parsing of macros around conflict markers correctly: 10866 EXPECT_EQ("#define Macro \\\n" 10867 "<<<<<<<\n" 10868 "Something \\\n" 10869 "|||||||\n" 10870 "Else \\\n" 10871 "=======\n" 10872 "Other \\\n" 10873 ">>>>>>>\n" 10874 " End int i;\n", 10875 format("#define Macro \\\n" 10876 "<<<<<<<\n" 10877 " Something \\\n" 10878 "|||||||\n" 10879 " Else \\\n" 10880 "=======\n" 10881 " Other \\\n" 10882 ">>>>>>>\n" 10883 " End\n" 10884 "int i;\n")); 10885 } 10886 10887 TEST_F(FormatTest, DisableRegions) { 10888 EXPECT_EQ("int i;\n" 10889 "// clang-format off\n" 10890 " int j;\n" 10891 "// clang-format on\n" 10892 "int k;", 10893 format(" int i;\n" 10894 " // clang-format off\n" 10895 " int j;\n" 10896 " // clang-format on\n" 10897 " int k;")); 10898 EXPECT_EQ("int i;\n" 10899 "/* clang-format off */\n" 10900 " int j;\n" 10901 "/* clang-format on */\n" 10902 "int k;", 10903 format(" int i;\n" 10904 " /* clang-format off */\n" 10905 " int j;\n" 10906 " /* clang-format on */\n" 10907 " int k;")); 10908 } 10909 10910 TEST_F(FormatTest, DoNotCrashOnInvalidInput) { 10911 format("? ) ="); 10912 verifyNoCrash("#define a\\\n /**/}"); 10913 } 10914 10915 } // end namespace 10916 } // end namespace format 10917 } // end namespace clang 10918