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, CorrectlyHandlesLengthOfBlockComments) { 1201 EXPECT_EQ("double *x; /* aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 1202 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa */", 1203 format("double *x; /* aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 1204 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa */")); 1205 EXPECT_EQ( 1206 "void ffffffffffff(\n" 1207 " int aaaaaaaa, int bbbbbbbb,\n" 1208 " int cccccccccccc) { /*\n" 1209 " aaaaaaaaaa\n" 1210 " aaaaaaaaaaaaa\n" 1211 " bbbbbbbbbbbbbb\n" 1212 " bbbbbbbbbb\n" 1213 " */\n" 1214 "}", 1215 format("void ffffffffffff(int aaaaaaaa, int bbbbbbbb, int cccccccccccc)\n" 1216 "{ /*\n" 1217 " aaaaaaaaaa aaaaaaaaaaaaa\n" 1218 " bbbbbbbbbbbbbb bbbbbbbbbb\n" 1219 " */\n" 1220 "}", 1221 getLLVMStyleWithColumns(40))); 1222 } 1223 1224 TEST_F(FormatTest, DontBreakNonTrailingBlockComments) { 1225 EXPECT_EQ("void ffffffffff(\n" 1226 " int aaaaa /* test */);", 1227 format("void ffffffffff(int aaaaa /* test */);", 1228 getLLVMStyleWithColumns(35))); 1229 } 1230 1231 TEST_F(FormatTest, SplitsLongCxxComments) { 1232 EXPECT_EQ("// A comment that\n" 1233 "// doesn't fit on\n" 1234 "// one line", 1235 format("// A comment that doesn't fit on one line", 1236 getLLVMStyleWithColumns(20))); 1237 EXPECT_EQ("/// A comment that\n" 1238 "/// doesn't fit on\n" 1239 "/// one line", 1240 format("/// A comment that doesn't fit on one line", 1241 getLLVMStyleWithColumns(20))); 1242 EXPECT_EQ("//! A comment that\n" 1243 "//! doesn't fit on\n" 1244 "//! one line", 1245 format("//! A comment that doesn't fit on one line", 1246 getLLVMStyleWithColumns(20))); 1247 EXPECT_EQ("// a b c d\n" 1248 "// e f g\n" 1249 "// h i j k", 1250 format("// a b c d e f g h i j k", getLLVMStyleWithColumns(10))); 1251 EXPECT_EQ( 1252 "// a b c d\n" 1253 "// e f g\n" 1254 "// h i j k", 1255 format("\\\n// a b c d e f g h i j k", getLLVMStyleWithColumns(10))); 1256 EXPECT_EQ("if (true) // A comment that\n" 1257 " // doesn't fit on\n" 1258 " // one line", 1259 format("if (true) // A comment that doesn't fit on one line ", 1260 getLLVMStyleWithColumns(30))); 1261 EXPECT_EQ("// Don't_touch_leading_whitespace", 1262 format("// Don't_touch_leading_whitespace", 1263 getLLVMStyleWithColumns(20))); 1264 EXPECT_EQ("// Add leading\n" 1265 "// whitespace", 1266 format("//Add leading whitespace", getLLVMStyleWithColumns(20))); 1267 EXPECT_EQ("/// Add leading\n" 1268 "/// whitespace", 1269 format("///Add leading whitespace", getLLVMStyleWithColumns(20))); 1270 EXPECT_EQ("//! Add leading\n" 1271 "//! whitespace", 1272 format("//!Add leading whitespace", getLLVMStyleWithColumns(20))); 1273 EXPECT_EQ("// whitespace", format("//whitespace", getLLVMStyle())); 1274 EXPECT_EQ("// Even if it makes the line exceed the column\n" 1275 "// limit", 1276 format("//Even if it makes the line exceed the column limit", 1277 getLLVMStyleWithColumns(51))); 1278 EXPECT_EQ("//--But not here", format("//--But not here", getLLVMStyle())); 1279 1280 EXPECT_EQ("// aa bb cc dd", 1281 format("// aa bb cc dd ", 1282 getLLVMStyleWithColumns(15))); 1283 1284 EXPECT_EQ("// A comment before\n" 1285 "// a macro\n" 1286 "// definition\n" 1287 "#define a b", 1288 format("// A comment before a macro definition\n" 1289 "#define a b", 1290 getLLVMStyleWithColumns(20))); 1291 EXPECT_EQ("void ffffff(\n" 1292 " int aaaaaaaaa, // wwww\n" 1293 " int bbbbbbbbbb, // xxxxxxx\n" 1294 " // yyyyyyyyyy\n" 1295 " int c, int d, int e) {}", 1296 format("void ffffff(\n" 1297 " int aaaaaaaaa, // wwww\n" 1298 " int bbbbbbbbbb, // xxxxxxx yyyyyyyyyy\n" 1299 " int c, int d, int e) {}", 1300 getLLVMStyleWithColumns(40))); 1301 EXPECT_EQ("//\t aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 1302 format("//\t aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 1303 getLLVMStyleWithColumns(20))); 1304 EXPECT_EQ( 1305 "#define XXX // a b c d\n" 1306 " // e f g h", 1307 format("#define XXX // a b c d e f g h", getLLVMStyleWithColumns(22))); 1308 EXPECT_EQ( 1309 "#define XXX // q w e r\n" 1310 " // t y u i", 1311 format("#define XXX //q w e r t y u i", getLLVMStyleWithColumns(22))); 1312 } 1313 1314 TEST_F(FormatTest, PreservesHangingIndentInCxxComments) { 1315 EXPECT_EQ("// A comment\n" 1316 "// that doesn't\n" 1317 "// fit on one\n" 1318 "// line", 1319 format("// A comment that doesn't fit on one line", 1320 getLLVMStyleWithColumns(20))); 1321 EXPECT_EQ("/// A comment\n" 1322 "/// that doesn't\n" 1323 "/// fit on one\n" 1324 "/// line", 1325 format("/// A comment that doesn't fit on one line", 1326 getLLVMStyleWithColumns(20))); 1327 } 1328 1329 TEST_F(FormatTest, DontSplitLineCommentsWithEscapedNewlines) { 1330 EXPECT_EQ("// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 1331 "// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 1332 "// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 1333 format("// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 1334 "// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 1335 "// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")); 1336 EXPECT_EQ("int a; // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1337 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1338 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", 1339 format("int a; // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1340 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1341 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", 1342 getLLVMStyleWithColumns(50))); 1343 // FIXME: One day we might want to implement adjustment of leading whitespace 1344 // of the consecutive lines in this kind of comment: 1345 EXPECT_EQ("double\n" 1346 " a; // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1347 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1348 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", 1349 format("double a; // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1350 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1351 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", 1352 getLLVMStyleWithColumns(49))); 1353 } 1354 1355 TEST_F(FormatTest, DontSplitLineCommentsWithPragmas) { 1356 FormatStyle Pragmas = getLLVMStyleWithColumns(30); 1357 Pragmas.CommentPragmas = "^ IWYU pragma:"; 1358 EXPECT_EQ( 1359 "// IWYU pragma: aaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbb", 1360 format("// IWYU pragma: aaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbb", Pragmas)); 1361 EXPECT_EQ( 1362 "/* IWYU pragma: aaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbb */", 1363 format("/* IWYU pragma: aaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbb */", Pragmas)); 1364 } 1365 1366 TEST_F(FormatTest, PriorityOfCommentBreaking) { 1367 EXPECT_EQ("if (xxx ==\n" 1368 " yyy && // aaaaaaaaaaaa bbbbbbbbb\n" 1369 " zzz)\n" 1370 " q();", 1371 format("if (xxx == yyy && // aaaaaaaaaaaa bbbbbbbbb\n" 1372 " zzz) q();", 1373 getLLVMStyleWithColumns(40))); 1374 EXPECT_EQ("if (xxxxxxxxxx ==\n" 1375 " yyy && // aaaaaa bbbbbbbb cccc\n" 1376 " zzz)\n" 1377 " q();", 1378 format("if (xxxxxxxxxx == yyy && // aaaaaa bbbbbbbb cccc\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("fffffffff(\n" 1389 " &xxx, // aaaaaaaaaaaa bbbbbbbbbbb\n" 1390 " zzz);", 1391 format("fffffffff(&xxx, // aaaaaaaaaaaa bbbbbbbbbbb\n" 1392 " zzz);", 1393 getLLVMStyleWithColumns(40))); 1394 } 1395 1396 TEST_F(FormatTest, MultiLineCommentsInDefines) { 1397 EXPECT_EQ("#define A(x) /* \\\n" 1398 " a comment \\\n" 1399 " inside */ \\\n" 1400 " f();", 1401 format("#define A(x) /* \\\n" 1402 " a comment \\\n" 1403 " inside */ \\\n" 1404 " f();", 1405 getLLVMStyleWithColumns(17))); 1406 EXPECT_EQ("#define A( \\\n" 1407 " x) /* \\\n" 1408 " a comment \\\n" 1409 " inside */ \\\n" 1410 " f();", 1411 format("#define A( \\\n" 1412 " x) /* \\\n" 1413 " a comment \\\n" 1414 " inside */ \\\n" 1415 " f();", 1416 getLLVMStyleWithColumns(17))); 1417 } 1418 1419 TEST_F(FormatTest, ParsesCommentsAdjacentToPPDirectives) { 1420 EXPECT_EQ("namespace {}\n// Test\n#define A", 1421 format("namespace {}\n // Test\n#define A")); 1422 EXPECT_EQ("namespace {}\n/* Test */\n#define A", 1423 format("namespace {}\n /* Test */\n#define A")); 1424 EXPECT_EQ("namespace {}\n/* Test */ #define A", 1425 format("namespace {}\n /* Test */ #define A")); 1426 } 1427 1428 TEST_F(FormatTest, SplitsLongLinesInComments) { 1429 EXPECT_EQ("/* This is a long\n" 1430 " * comment that\n" 1431 " * doesn't\n" 1432 " * fit on one line.\n" 1433 " */", 1434 format("/* " 1435 "This is a long " 1436 "comment that " 1437 "doesn't " 1438 "fit on one line. */", 1439 getLLVMStyleWithColumns(20))); 1440 EXPECT_EQ( 1441 "/* a b c d\n" 1442 " * e f g\n" 1443 " * h i j k\n" 1444 " */", 1445 format("/* a b c d e f g h i j k */", getLLVMStyleWithColumns(10))); 1446 EXPECT_EQ( 1447 "/* a b c d\n" 1448 " * e f g\n" 1449 " * h i j k\n" 1450 " */", 1451 format("\\\n/* a b c d e f g h i j k */", getLLVMStyleWithColumns(10))); 1452 EXPECT_EQ("/*\n" 1453 "This is a long\n" 1454 "comment that doesn't\n" 1455 "fit on one line.\n" 1456 "*/", 1457 format("/*\n" 1458 "This is a long " 1459 "comment that doesn't " 1460 "fit on one line. \n" 1461 "*/", 1462 getLLVMStyleWithColumns(20))); 1463 EXPECT_EQ("/*\n" 1464 " * This is a long\n" 1465 " * comment that\n" 1466 " * doesn't fit on\n" 1467 " * one line.\n" 1468 " */", 1469 format("/* \n" 1470 " * This is a long " 1471 " comment that " 1472 " doesn't fit on " 1473 " one line. \n" 1474 " */", 1475 getLLVMStyleWithColumns(20))); 1476 EXPECT_EQ("/*\n" 1477 " * This_is_a_comment_with_words_that_dont_fit_on_one_line\n" 1478 " * so_it_should_be_broken\n" 1479 " * wherever_a_space_occurs\n" 1480 " */", 1481 format("/*\n" 1482 " * This_is_a_comment_with_words_that_dont_fit_on_one_line " 1483 " so_it_should_be_broken " 1484 " wherever_a_space_occurs \n" 1485 " */", 1486 getLLVMStyleWithColumns(20))); 1487 EXPECT_EQ("/*\n" 1488 " * This_comment_can_not_be_broken_into_lines\n" 1489 " */", 1490 format("/*\n" 1491 " * This_comment_can_not_be_broken_into_lines\n" 1492 " */", 1493 getLLVMStyleWithColumns(20))); 1494 EXPECT_EQ("{\n" 1495 " /*\n" 1496 " This is another\n" 1497 " long comment that\n" 1498 " doesn't fit on one\n" 1499 " line 1234567890\n" 1500 " */\n" 1501 "}", 1502 format("{\n" 1503 "/*\n" 1504 "This is another " 1505 " long comment that " 1506 " doesn't fit on one" 1507 " line 1234567890\n" 1508 "*/\n" 1509 "}", 1510 getLLVMStyleWithColumns(20))); 1511 EXPECT_EQ("{\n" 1512 " /*\n" 1513 " * This i s\n" 1514 " * another comment\n" 1515 " * t hat doesn' t\n" 1516 " * fit on one l i\n" 1517 " * n e\n" 1518 " */\n" 1519 "}", 1520 format("{\n" 1521 "/*\n" 1522 " * This i s" 1523 " another comment" 1524 " t hat doesn' t" 1525 " fit on one l i" 1526 " n e\n" 1527 " */\n" 1528 "}", 1529 getLLVMStyleWithColumns(20))); 1530 EXPECT_EQ("/*\n" 1531 " * This is a long\n" 1532 " * comment that\n" 1533 " * doesn't fit on\n" 1534 " * one line\n" 1535 " */", 1536 format(" /*\n" 1537 " * This is a long comment that doesn't fit on one line\n" 1538 " */", 1539 getLLVMStyleWithColumns(20))); 1540 EXPECT_EQ("{\n" 1541 " if (something) /* This is a\n" 1542 " long\n" 1543 " comment */\n" 1544 " ;\n" 1545 "}", 1546 format("{\n" 1547 " if (something) /* This is a long comment */\n" 1548 " ;\n" 1549 "}", 1550 getLLVMStyleWithColumns(30))); 1551 1552 EXPECT_EQ("/* A comment before\n" 1553 " * a macro\n" 1554 " * definition */\n" 1555 "#define a b", 1556 format("/* A comment before a macro definition */\n" 1557 "#define a b", 1558 getLLVMStyleWithColumns(20))); 1559 1560 EXPECT_EQ("/* some comment\n" 1561 " * a comment\n" 1562 "* that we break\n" 1563 " * another comment\n" 1564 "* we have to break\n" 1565 "* a left comment\n" 1566 " */", 1567 format(" /* some comment\n" 1568 " * a comment that we break\n" 1569 " * another comment we have to break\n" 1570 "* a left comment\n" 1571 " */", 1572 getLLVMStyleWithColumns(20))); 1573 1574 EXPECT_EQ("/**\n" 1575 " * multiline block\n" 1576 " * comment\n" 1577 " *\n" 1578 " */", 1579 format("/**\n" 1580 " * multiline block comment\n" 1581 " *\n" 1582 " */", 1583 getLLVMStyleWithColumns(20))); 1584 1585 EXPECT_EQ("/*\n" 1586 "\n" 1587 "\n" 1588 " */\n", 1589 format(" /* \n" 1590 " \n" 1591 " \n" 1592 " */\n")); 1593 1594 EXPECT_EQ("/* a a */", 1595 format("/* a a */", getLLVMStyleWithColumns(15))); 1596 EXPECT_EQ("/* a a bc */", 1597 format("/* a a bc */", getLLVMStyleWithColumns(15))); 1598 EXPECT_EQ("/* aaa aaa\n" 1599 " * aaaaa */", 1600 format("/* aaa aaa aaaaa */", getLLVMStyleWithColumns(15))); 1601 EXPECT_EQ("/* aaa aaa\n" 1602 " * aaaaa */", 1603 format("/* aaa aaa aaaaa */", getLLVMStyleWithColumns(15))); 1604 } 1605 1606 TEST_F(FormatTest, SplitsLongLinesInCommentsInPreprocessor) { 1607 EXPECT_EQ("#define X \\\n" 1608 " /* \\\n" 1609 " Test \\\n" 1610 " Macro comment \\\n" 1611 " with a long \\\n" 1612 " line \\\n" 1613 " */ \\\n" 1614 " A + B", 1615 format("#define X \\\n" 1616 " /*\n" 1617 " Test\n" 1618 " Macro comment with a long line\n" 1619 " */ \\\n" 1620 " A + B", 1621 getLLVMStyleWithColumns(20))); 1622 EXPECT_EQ("#define X \\\n" 1623 " /* Macro comment \\\n" 1624 " with a long \\\n" 1625 " line */ \\\n" 1626 " A + B", 1627 format("#define X \\\n" 1628 " /* Macro comment with a long\n" 1629 " line */ \\\n" 1630 " A + B", 1631 getLLVMStyleWithColumns(20))); 1632 EXPECT_EQ("#define X \\\n" 1633 " /* Macro comment \\\n" 1634 " * with a long \\\n" 1635 " * line */ \\\n" 1636 " A + B", 1637 format("#define X \\\n" 1638 " /* Macro comment with a long line */ \\\n" 1639 " A + B", 1640 getLLVMStyleWithColumns(20))); 1641 } 1642 1643 TEST_F(FormatTest, CommentsInStaticInitializers) { 1644 EXPECT_EQ( 1645 "static SomeType type = {aaaaaaaaaaaaaaaaaaaa, /* comment */\n" 1646 " aaaaaaaaaaaaaaaaaaaa /* comment */,\n" 1647 " /* comment */ aaaaaaaaaaaaaaaaaaaa,\n" 1648 " aaaaaaaaaaaaaaaaaaaa, // comment\n" 1649 " aaaaaaaaaaaaaaaaaaaa};", 1650 format("static SomeType type = { aaaaaaaaaaaaaaaaaaaa , /* comment */\n" 1651 " aaaaaaaaaaaaaaaaaaaa /* comment */ ,\n" 1652 " /* comment */ aaaaaaaaaaaaaaaaaaaa ,\n" 1653 " aaaaaaaaaaaaaaaaaaaa , // comment\n" 1654 " aaaaaaaaaaaaaaaaaaaa };")); 1655 verifyFormat("static SomeType type = {aaaaaaaaaaa, // comment for aa...\n" 1656 " bbbbbbbbbbb, ccccccccccc};"); 1657 verifyFormat("static SomeType type = {aaaaaaaaaaa,\n" 1658 " // comment for bb....\n" 1659 " bbbbbbbbbbb, ccccccccccc};"); 1660 verifyGoogleFormat( 1661 "static SomeType type = {aaaaaaaaaaa, // comment for aa...\n" 1662 " bbbbbbbbbbb, ccccccccccc};"); 1663 verifyGoogleFormat("static SomeType type = {aaaaaaaaaaa,\n" 1664 " // comment for bb....\n" 1665 " bbbbbbbbbbb, ccccccccccc};"); 1666 1667 verifyFormat("S s = {{a, b, c}, // Group #1\n" 1668 " {d, e, f}, // Group #2\n" 1669 " {g, h, i}}; // Group #3"); 1670 verifyFormat("S s = {{// Group #1\n" 1671 " a, b, c},\n" 1672 " {// Group #2\n" 1673 " d, e, f},\n" 1674 " {// Group #3\n" 1675 " g, h, i}};"); 1676 1677 EXPECT_EQ("S s = {\n" 1678 " // Some comment\n" 1679 " a,\n" 1680 "\n" 1681 " // Comment after empty line\n" 1682 " b}", 1683 format("S s = {\n" 1684 " // Some comment\n" 1685 " a,\n" 1686 " \n" 1687 " // Comment after empty line\n" 1688 " b\n" 1689 "}")); 1690 EXPECT_EQ("S s = {\n" 1691 " /* Some comment */\n" 1692 " a,\n" 1693 "\n" 1694 " /* Comment after empty line */\n" 1695 " b}", 1696 format("S s = {\n" 1697 " /* Some comment */\n" 1698 " a,\n" 1699 " \n" 1700 " /* Comment after empty line */\n" 1701 " b\n" 1702 "}")); 1703 verifyFormat("const uint8_t aaaaaaaaaaaaaaaaaaaaaa[0] = {\n" 1704 " 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // comment\n" 1705 " 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // comment\n" 1706 " 0x00, 0x00, 0x00, 0x00}; // comment\n"); 1707 } 1708 1709 TEST_F(FormatTest, IgnoresIf0Contents) { 1710 EXPECT_EQ("#if 0\n" 1711 "}{)(&*(^%%#%@! fsadj f;ldjs ,:;| <<<>>>][)(][\n" 1712 "#endif\n" 1713 "void f() {}", 1714 format("#if 0\n" 1715 "}{)(&*(^%%#%@! fsadj f;ldjs ,:;| <<<>>>][)(][\n" 1716 "#endif\n" 1717 "void f( ) { }")); 1718 EXPECT_EQ("#if false\n" 1719 "void f( ) { }\n" 1720 "#endif\n" 1721 "void g() {}\n", 1722 format("#if false\n" 1723 "void f( ) { }\n" 1724 "#endif\n" 1725 "void g( ) { }\n")); 1726 EXPECT_EQ("enum E {\n" 1727 " One,\n" 1728 " Two,\n" 1729 "#if 0\n" 1730 "Three,\n" 1731 " Four,\n" 1732 "#endif\n" 1733 " Five\n" 1734 "};", 1735 format("enum E {\n" 1736 " One,Two,\n" 1737 "#if 0\n" 1738 "Three,\n" 1739 " Four,\n" 1740 "#endif\n" 1741 " Five};")); 1742 EXPECT_EQ("enum F {\n" 1743 " One,\n" 1744 "#if 1\n" 1745 " Two,\n" 1746 "#if 0\n" 1747 "Three,\n" 1748 " Four,\n" 1749 "#endif\n" 1750 " Five\n" 1751 "#endif\n" 1752 "};", 1753 format("enum F {\n" 1754 "One,\n" 1755 "#if 1\n" 1756 "Two,\n" 1757 "#if 0\n" 1758 "Three,\n" 1759 " Four,\n" 1760 "#endif\n" 1761 "Five\n" 1762 "#endif\n" 1763 "};")); 1764 EXPECT_EQ("enum G {\n" 1765 " One,\n" 1766 "#if 0\n" 1767 "Two,\n" 1768 "#else\n" 1769 " Three,\n" 1770 "#endif\n" 1771 " Four\n" 1772 "};", 1773 format("enum G {\n" 1774 "One,\n" 1775 "#if 0\n" 1776 "Two,\n" 1777 "#else\n" 1778 "Three,\n" 1779 "#endif\n" 1780 "Four\n" 1781 "};")); 1782 EXPECT_EQ("enum H {\n" 1783 " One,\n" 1784 "#if 0\n" 1785 "#ifdef Q\n" 1786 "Two,\n" 1787 "#else\n" 1788 "Three,\n" 1789 "#endif\n" 1790 "#endif\n" 1791 " Four\n" 1792 "};", 1793 format("enum H {\n" 1794 "One,\n" 1795 "#if 0\n" 1796 "#ifdef Q\n" 1797 "Two,\n" 1798 "#else\n" 1799 "Three,\n" 1800 "#endif\n" 1801 "#endif\n" 1802 "Four\n" 1803 "};")); 1804 EXPECT_EQ("enum I {\n" 1805 " One,\n" 1806 "#if /* test */ 0 || 1\n" 1807 "Two,\n" 1808 "Three,\n" 1809 "#endif\n" 1810 " Four\n" 1811 "};", 1812 format("enum I {\n" 1813 "One,\n" 1814 "#if /* test */ 0 || 1\n" 1815 "Two,\n" 1816 "Three,\n" 1817 "#endif\n" 1818 "Four\n" 1819 "};")); 1820 EXPECT_EQ("enum J {\n" 1821 " One,\n" 1822 "#if 0\n" 1823 "#if 0\n" 1824 "Two,\n" 1825 "#else\n" 1826 "Three,\n" 1827 "#endif\n" 1828 "Four,\n" 1829 "#endif\n" 1830 " Five\n" 1831 "};", 1832 format("enum J {\n" 1833 "One,\n" 1834 "#if 0\n" 1835 "#if 0\n" 1836 "Two,\n" 1837 "#else\n" 1838 "Three,\n" 1839 "#endif\n" 1840 "Four,\n" 1841 "#endif\n" 1842 "Five\n" 1843 "};")); 1844 } 1845 1846 //===----------------------------------------------------------------------===// 1847 // Tests for classes, namespaces, etc. 1848 //===----------------------------------------------------------------------===// 1849 1850 TEST_F(FormatTest, DoesNotBreakSemiAfterClassDecl) { 1851 verifyFormat("class A {};"); 1852 } 1853 1854 TEST_F(FormatTest, UnderstandsAccessSpecifiers) { 1855 verifyFormat("class A {\n" 1856 "public:\n" 1857 "public: // comment\n" 1858 "protected:\n" 1859 "private:\n" 1860 " void f() {}\n" 1861 "};"); 1862 verifyGoogleFormat("class A {\n" 1863 " public:\n" 1864 " protected:\n" 1865 " private:\n" 1866 " void f() {}\n" 1867 "};"); 1868 verifyFormat("class A {\n" 1869 "public slots:\n" 1870 " void f() {}\n" 1871 "public Q_SLOTS:\n" 1872 " void f() {}\n" 1873 "signals:\n" 1874 " void g();\n" 1875 "};"); 1876 1877 // Don't interpret 'signals' the wrong way. 1878 verifyFormat("signals.set();"); 1879 verifyFormat("for (Signals signals : f()) {\n}"); 1880 verifyFormat("{\n" 1881 " signals.set(); // This needs indentation.\n" 1882 "}"); 1883 } 1884 1885 TEST_F(FormatTest, SeparatesLogicalBlocks) { 1886 EXPECT_EQ("class A {\n" 1887 "public:\n" 1888 " void f();\n" 1889 "\n" 1890 "private:\n" 1891 " void g() {}\n" 1892 " // test\n" 1893 "protected:\n" 1894 " int h;\n" 1895 "};", 1896 format("class A {\n" 1897 "public:\n" 1898 "void f();\n" 1899 "private:\n" 1900 "void g() {}\n" 1901 "// test\n" 1902 "protected:\n" 1903 "int h;\n" 1904 "};")); 1905 EXPECT_EQ("class A {\n" 1906 "protected:\n" 1907 "public:\n" 1908 " void f();\n" 1909 "};", 1910 format("class A {\n" 1911 "protected:\n" 1912 "\n" 1913 "public:\n" 1914 "\n" 1915 " void f();\n" 1916 "};")); 1917 1918 // Even ensure proper spacing inside macros. 1919 EXPECT_EQ("#define B \\\n" 1920 " class A { \\\n" 1921 " protected: \\\n" 1922 " public: \\\n" 1923 " void f(); \\\n" 1924 " };", 1925 format("#define B \\\n" 1926 " class A { \\\n" 1927 " protected: \\\n" 1928 " \\\n" 1929 " public: \\\n" 1930 " \\\n" 1931 " void f(); \\\n" 1932 " };", 1933 getGoogleStyle())); 1934 // But don't remove empty lines after macros ending in access specifiers. 1935 EXPECT_EQ("#define A private:\n" 1936 "\n" 1937 "int i;", 1938 format("#define A private:\n" 1939 "\n" 1940 "int i;")); 1941 } 1942 1943 TEST_F(FormatTest, FormatsClasses) { 1944 verifyFormat("class A : public B {};"); 1945 verifyFormat("class A : public ::B {};"); 1946 1947 verifyFormat( 1948 "class AAAAAAAAAAAAAAAAAAAA : public BBBBBBBBBBBBBBBBBBBBBBBBBBBBBB,\n" 1949 " public CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC {};"); 1950 verifyFormat("class AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n" 1951 " : public BBBBBBBBBBBBBBBBBBBBBBBBBBBBBB,\n" 1952 " public CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC {};"); 1953 verifyFormat( 1954 "class A : public B, public C, public D, public E, public F {};"); 1955 verifyFormat("class AAAAAAAAAAAA : public B,\n" 1956 " public C,\n" 1957 " public D,\n" 1958 " public E,\n" 1959 " public F,\n" 1960 " public G {};"); 1961 1962 verifyFormat("class\n" 1963 " ReallyReallyLongClassName {\n" 1964 " int i;\n" 1965 "};", 1966 getLLVMStyleWithColumns(32)); 1967 verifyFormat("struct aaaaaaaaaaaaa : public aaaaaaaaaaaaaaaaaaa< // break\n" 1968 " aaaaaaaaaaaaaaaa> {};"); 1969 verifyFormat("struct aaaaaaaaaaaaaaaaaaaa\n" 1970 " : public aaaaaaaaaaaaaaaaaaa<aaaaaaaaaaaaaaaaaaaaa,\n" 1971 " aaaaaaaaaaaaaaaaaaaaaa> {};"); 1972 verifyFormat("template <class R, class C>\n" 1973 "struct Aaaaaaaaaaaaaaaaa<R (C::*)(int) const>\n" 1974 " : Aaaaaaaaaaaaaaaaa<R (C::*)(int)> {};"); 1975 verifyFormat("class ::A::B {};"); 1976 } 1977 1978 TEST_F(FormatTest, FormatsVariableDeclarationsAfterStructOrClass) { 1979 verifyFormat("class A {\n} a, b;"); 1980 verifyFormat("struct A {\n} a, b;"); 1981 verifyFormat("union A {\n} a;"); 1982 } 1983 1984 TEST_F(FormatTest, FormatsEnum) { 1985 verifyFormat("enum {\n" 1986 " Zero,\n" 1987 " One = 1,\n" 1988 " Two = One + 1,\n" 1989 " Three = (One + Two),\n" 1990 " Four = (Zero && (One ^ Two)) | (One << Two),\n" 1991 " Five = (One, Two, Three, Four, 5)\n" 1992 "};"); 1993 verifyGoogleFormat("enum {\n" 1994 " Zero,\n" 1995 " One = 1,\n" 1996 " Two = One + 1,\n" 1997 " Three = (One + Two),\n" 1998 " Four = (Zero && (One ^ Two)) | (One << Two),\n" 1999 " Five = (One, Two, Three, Four, 5)\n" 2000 "};"); 2001 verifyFormat("enum Enum {};"); 2002 verifyFormat("enum {};"); 2003 verifyFormat("enum X E {} d;"); 2004 verifyFormat("enum __attribute__((...)) E {} d;"); 2005 verifyFormat("enum __declspec__((...)) E {} d;"); 2006 verifyFormat("enum {\n" 2007 " Bar = Foo<int, int>::value\n" 2008 "};", 2009 getLLVMStyleWithColumns(30)); 2010 2011 verifyFormat("enum ShortEnum { A, B, C };"); 2012 verifyGoogleFormat("enum ShortEnum { A, B, C };"); 2013 2014 EXPECT_EQ("enum KeepEmptyLines {\n" 2015 " ONE,\n" 2016 "\n" 2017 " TWO,\n" 2018 "\n" 2019 " THREE\n" 2020 "}", 2021 format("enum KeepEmptyLines {\n" 2022 " ONE,\n" 2023 "\n" 2024 " TWO,\n" 2025 "\n" 2026 "\n" 2027 " THREE\n" 2028 "}")); 2029 verifyFormat("enum E { // comment\n" 2030 " ONE,\n" 2031 " TWO\n" 2032 "};\n" 2033 "int i;"); 2034 // Not enums. 2035 verifyFormat("enum X f() {\n" 2036 " a();\n" 2037 " return 42;\n" 2038 "}"); 2039 verifyFormat("enum X Type::f() {\n" 2040 " a();\n" 2041 " return 42;\n" 2042 "}"); 2043 verifyFormat("enum ::X f() {\n" 2044 " a();\n" 2045 " return 42;\n" 2046 "}"); 2047 verifyFormat("enum ns::X f() {\n" 2048 " a();\n" 2049 " return 42;\n" 2050 "}"); 2051 } 2052 2053 TEST_F(FormatTest, FormatsEnumsWithErrors) { 2054 verifyFormat("enum Type {\n" 2055 " One = 0; // These semicolons should be commas.\n" 2056 " Two = 1;\n" 2057 "};"); 2058 verifyFormat("namespace n {\n" 2059 "enum Type {\n" 2060 " One,\n" 2061 " Two, // missing };\n" 2062 " int i;\n" 2063 "}\n" 2064 "void g() {}"); 2065 } 2066 2067 TEST_F(FormatTest, FormatsEnumStruct) { 2068 verifyFormat("enum struct {\n" 2069 " Zero,\n" 2070 " One = 1,\n" 2071 " Two = One + 1,\n" 2072 " Three = (One + Two),\n" 2073 " Four = (Zero && (One ^ Two)) | (One << Two),\n" 2074 " Five = (One, Two, Three, Four, 5)\n" 2075 "};"); 2076 verifyFormat("enum struct Enum {};"); 2077 verifyFormat("enum struct {};"); 2078 verifyFormat("enum struct X E {} d;"); 2079 verifyFormat("enum struct __attribute__((...)) E {} d;"); 2080 verifyFormat("enum struct __declspec__((...)) E {} d;"); 2081 verifyFormat("enum struct X f() {\n a();\n return 42;\n}"); 2082 } 2083 2084 TEST_F(FormatTest, FormatsEnumClass) { 2085 verifyFormat("enum class {\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 class Enum {};"); 2094 verifyFormat("enum class {};"); 2095 verifyFormat("enum class X E {} d;"); 2096 verifyFormat("enum class __attribute__((...)) E {} d;"); 2097 verifyFormat("enum class __declspec__((...)) E {} d;"); 2098 verifyFormat("enum class X f() {\n a();\n return 42;\n}"); 2099 } 2100 2101 TEST_F(FormatTest, FormatsEnumTypes) { 2102 verifyFormat("enum X : int {\n" 2103 " A, // Force multiple lines.\n" 2104 " B\n" 2105 "};"); 2106 verifyFormat("enum X : int { A, B };"); 2107 verifyFormat("enum X : std::uint32_t { A, B };"); 2108 } 2109 2110 TEST_F(FormatTest, FormatsNSEnums) { 2111 verifyGoogleFormat("typedef NS_ENUM(NSInteger, SomeName) { AAA, BBB }"); 2112 verifyGoogleFormat("typedef NS_ENUM(NSInteger, MyType) {\n" 2113 " // Information about someDecentlyLongValue.\n" 2114 " someDecentlyLongValue,\n" 2115 " // Information about anotherDecentlyLongValue.\n" 2116 " anotherDecentlyLongValue,\n" 2117 " // Information about aThirdDecentlyLongValue.\n" 2118 " aThirdDecentlyLongValue\n" 2119 "};"); 2120 verifyGoogleFormat("typedef NS_OPTIONS(NSInteger, MyType) {\n" 2121 " a = 1,\n" 2122 " b = 2,\n" 2123 " c = 3,\n" 2124 "};"); 2125 verifyGoogleFormat("typedef CF_ENUM(NSInteger, MyType) {\n" 2126 " a = 1,\n" 2127 " b = 2,\n" 2128 " c = 3,\n" 2129 "};"); 2130 verifyGoogleFormat("typedef CF_OPTIONS(NSInteger, MyType) {\n" 2131 " a = 1,\n" 2132 " b = 2,\n" 2133 " c = 3,\n" 2134 "};"); 2135 } 2136 2137 TEST_F(FormatTest, FormatsBitfields) { 2138 verifyFormat("struct Bitfields {\n" 2139 " unsigned sClass : 8;\n" 2140 " unsigned ValueKind : 2;\n" 2141 "};"); 2142 verifyFormat("struct A {\n" 2143 " int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa : 1,\n" 2144 " bbbbbbbbbbbbbbbbbbbbbbbbb;\n" 2145 "};"); 2146 verifyFormat("struct MyStruct {\n" 2147 " uchar data;\n" 2148 " uchar : 8;\n" 2149 " uchar : 8;\n" 2150 " uchar other;\n" 2151 "};"); 2152 } 2153 2154 TEST_F(FormatTest, FormatsNamespaces) { 2155 verifyFormat("namespace some_namespace {\n" 2156 "class A {};\n" 2157 "void f() { f(); }\n" 2158 "}"); 2159 verifyFormat("namespace {\n" 2160 "class A {};\n" 2161 "void f() { f(); }\n" 2162 "}"); 2163 verifyFormat("inline namespace X {\n" 2164 "class A {};\n" 2165 "void f() { f(); }\n" 2166 "}"); 2167 verifyFormat("using namespace some_namespace;\n" 2168 "class A {};\n" 2169 "void f() { f(); }"); 2170 2171 // This code is more common than we thought; if we 2172 // layout this correctly the semicolon will go into 2173 // its own line, which is undesirable. 2174 verifyFormat("namespace {};"); 2175 verifyFormat("namespace {\n" 2176 "class A {};\n" 2177 "};"); 2178 2179 verifyFormat("namespace {\n" 2180 "int SomeVariable = 0; // comment\n" 2181 "} // namespace"); 2182 EXPECT_EQ("#ifndef HEADER_GUARD\n" 2183 "#define HEADER_GUARD\n" 2184 "namespace my_namespace {\n" 2185 "int i;\n" 2186 "} // my_namespace\n" 2187 "#endif // HEADER_GUARD", 2188 format("#ifndef HEADER_GUARD\n" 2189 " #define HEADER_GUARD\n" 2190 " namespace my_namespace {\n" 2191 "int i;\n" 2192 "} // my_namespace\n" 2193 "#endif // HEADER_GUARD")); 2194 2195 FormatStyle Style = getLLVMStyle(); 2196 Style.NamespaceIndentation = FormatStyle::NI_All; 2197 EXPECT_EQ("namespace out {\n" 2198 " int i;\n" 2199 " namespace in {\n" 2200 " int i;\n" 2201 " } // namespace\n" 2202 "} // namespace", 2203 format("namespace out {\n" 2204 "int i;\n" 2205 "namespace in {\n" 2206 "int i;\n" 2207 "} // namespace\n" 2208 "} // namespace", 2209 Style)); 2210 2211 Style.NamespaceIndentation = FormatStyle::NI_Inner; 2212 EXPECT_EQ("namespace out {\n" 2213 "int i;\n" 2214 "namespace in {\n" 2215 " int i;\n" 2216 "} // namespace\n" 2217 "} // namespace", 2218 format("namespace out {\n" 2219 "int i;\n" 2220 "namespace in {\n" 2221 "int i;\n" 2222 "} // namespace\n" 2223 "} // namespace", 2224 Style)); 2225 } 2226 2227 TEST_F(FormatTest, FormatsExternC) { verifyFormat("extern \"C\" {\nint a;"); } 2228 2229 TEST_F(FormatTest, FormatsInlineASM) { 2230 verifyFormat("asm(\"xyz\" : \"=a\"(a), \"=d\"(b) : \"a\"(data));"); 2231 verifyFormat("asm(\"nop\" ::: \"memory\");"); 2232 verifyFormat( 2233 "asm(\"movq\\t%%rbx, %%rsi\\n\\t\"\n" 2234 " \"cpuid\\n\\t\"\n" 2235 " \"xchgq\\t%%rbx, %%rsi\\n\\t\"\n" 2236 " : \"=a\"(*rEAX), \"=S\"(*rEBX), \"=c\"(*rECX), \"=d\"(*rEDX)\n" 2237 " : \"a\"(value));"); 2238 EXPECT_EQ( 2239 "void NS_InvokeByIndex(void *that, unsigned int methodIndex) {\n" 2240 " __asm {\n" 2241 " mov edx,[that] // vtable in edx\n" 2242 " mov eax,methodIndex\n" 2243 " call [edx][eax*4] // stdcall\n" 2244 " }\n" 2245 "}", 2246 format("void NS_InvokeByIndex(void *that, unsigned int methodIndex) {\n" 2247 " __asm {\n" 2248 " mov edx,[that] // vtable in edx\n" 2249 " mov eax,methodIndex\n" 2250 " call [edx][eax*4] // stdcall\n" 2251 " }\n" 2252 "}")); 2253 EXPECT_EQ("_asm {\n" 2254 " xor eax, eax;\n" 2255 " cpuid;\n" 2256 "}", 2257 format("_asm {\n" 2258 " xor eax, eax;\n" 2259 " cpuid;\n" 2260 "}")); 2261 verifyFormat("void function() {\n" 2262 " // comment\n" 2263 " asm(\"\");\n" 2264 "}"); 2265 EXPECT_EQ("__asm {\n" 2266 "}\n" 2267 "int i;", 2268 format("__asm {\n" 2269 "}\n" 2270 "int i;")); 2271 } 2272 2273 TEST_F(FormatTest, FormatTryCatch) { 2274 verifyFormat("try {\n" 2275 " throw a * b;\n" 2276 "} catch (int a) {\n" 2277 " // Do nothing.\n" 2278 "} catch (...) {\n" 2279 " exit(42);\n" 2280 "}"); 2281 2282 // Function-level try statements. 2283 verifyFormat("int f() try { return 4; } catch (...) {\n" 2284 " return 5;\n" 2285 "}"); 2286 verifyFormat("class A {\n" 2287 " int a;\n" 2288 " A() try : a(0) {\n" 2289 " } catch (...) {\n" 2290 " throw;\n" 2291 " }\n" 2292 "};\n"); 2293 2294 // Incomplete try-catch blocks. 2295 verifyIncompleteFormat("try {} catch ("); 2296 } 2297 2298 TEST_F(FormatTest, FormatSEHTryCatch) { 2299 verifyFormat("__try {\n" 2300 " int a = b * c;\n" 2301 "} __except (EXCEPTION_EXECUTE_HANDLER) {\n" 2302 " // Do nothing.\n" 2303 "}"); 2304 2305 verifyFormat("__try {\n" 2306 " int a = b * c;\n" 2307 "} __finally {\n" 2308 " // Do nothing.\n" 2309 "}"); 2310 2311 verifyFormat("DEBUG({\n" 2312 " __try {\n" 2313 " } __finally {\n" 2314 " }\n" 2315 "});\n"); 2316 } 2317 2318 TEST_F(FormatTest, IncompleteTryCatchBlocks) { 2319 verifyFormat("try {\n" 2320 " f();\n" 2321 "} catch {\n" 2322 " g();\n" 2323 "}"); 2324 verifyFormat("try {\n" 2325 " f();\n" 2326 "} catch (A a) MACRO(x) {\n" 2327 " g();\n" 2328 "} catch (B b) MACRO(x) {\n" 2329 " g();\n" 2330 "}"); 2331 } 2332 2333 TEST_F(FormatTest, FormatTryCatchBraceStyles) { 2334 FormatStyle Style = getLLVMStyle(); 2335 for (auto BraceStyle : 2336 {FormatStyle::BS_Attach, FormatStyle::BS_Mozilla, FormatStyle::BS_WebKit}) { 2337 Style.BreakBeforeBraces = BraceStyle; 2338 verifyFormat("try {\n" 2339 " // something\n" 2340 "} catch (...) {\n" 2341 " // something\n" 2342 "}", 2343 Style); 2344 } 2345 Style.BreakBeforeBraces = FormatStyle::BS_Stroustrup; 2346 verifyFormat("try {\n" 2347 " // something\n" 2348 "}\n" 2349 "catch (...) {\n" 2350 " // something\n" 2351 "}", 2352 Style); 2353 verifyFormat("__try {\n" 2354 " // something\n" 2355 "}\n" 2356 "__finally {\n" 2357 " // something\n" 2358 "}", 2359 Style); 2360 verifyFormat("@try {\n" 2361 " // something\n" 2362 "}\n" 2363 "@finally {\n" 2364 " // something\n" 2365 "}", 2366 Style); 2367 Style.BreakBeforeBraces = FormatStyle::BS_Allman; 2368 verifyFormat("try\n" 2369 "{\n" 2370 " // something\n" 2371 "}\n" 2372 "catch (...)\n" 2373 "{\n" 2374 " // something\n" 2375 "}", 2376 Style); 2377 Style.BreakBeforeBraces = FormatStyle::BS_GNU; 2378 verifyFormat("try\n" 2379 " {\n" 2380 " // something\n" 2381 " }\n" 2382 "catch (...)\n" 2383 " {\n" 2384 " // something\n" 2385 " }", 2386 Style); 2387 } 2388 2389 TEST_F(FormatTest, FormatObjCTryCatch) { 2390 verifyFormat("@try {\n" 2391 " f();\n" 2392 "} @catch (NSException e) {\n" 2393 " @throw;\n" 2394 "} @finally {\n" 2395 " exit(42);\n" 2396 "}"); 2397 verifyFormat("DEBUG({\n" 2398 " @try {\n" 2399 " } @finally {\n" 2400 " }\n" 2401 "});\n"); 2402 } 2403 2404 TEST_F(FormatTest, FormatObjCAutoreleasepool) { 2405 FormatStyle Style = getLLVMStyle(); 2406 verifyFormat("@autoreleasepool {\n" 2407 " f();\n" 2408 "}\n" 2409 "@autoreleasepool {\n" 2410 " f();\n" 2411 "}\n", 2412 Style); 2413 Style.BreakBeforeBraces = FormatStyle::BS_Allman; 2414 verifyFormat("@autoreleasepool\n" 2415 "{\n" 2416 " f();\n" 2417 "}\n" 2418 "@autoreleasepool\n" 2419 "{\n" 2420 " f();\n" 2421 "}\n", 2422 Style); 2423 } 2424 2425 TEST_F(FormatTest, StaticInitializers) { 2426 verifyFormat("static SomeClass SC = {1, 'a'};"); 2427 2428 verifyFormat("static SomeClass WithALoooooooooooooooooooongName = {\n" 2429 " 100000000, " 2430 "\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"};"); 2431 2432 // Here, everything other than the "}" would fit on a line. 2433 verifyFormat("static int LooooooooooooooooooooooooongVariable[1] = {\n" 2434 " 10000000000000000000000000};"); 2435 EXPECT_EQ("S s = {a,\n" 2436 "\n" 2437 " b};", 2438 format("S s = {\n" 2439 " a,\n" 2440 "\n" 2441 " b\n" 2442 "};")); 2443 2444 // FIXME: This would fit into the column limit if we'd fit "{ {" on the first 2445 // line. However, the formatting looks a bit off and this probably doesn't 2446 // happen often in practice. 2447 verifyFormat("static int Variable[1] = {\n" 2448 " {1000000000000000000000000000000000000}};", 2449 getLLVMStyleWithColumns(40)); 2450 } 2451 2452 TEST_F(FormatTest, DesignatedInitializers) { 2453 verifyFormat("const struct A a = {.a = 1, .b = 2};"); 2454 verifyFormat("const struct A a = {.aaaaaaaaaa = 1,\n" 2455 " .bbbbbbbbbb = 2,\n" 2456 " .cccccccccc = 3,\n" 2457 " .dddddddddd = 4,\n" 2458 " .eeeeeeeeee = 5};"); 2459 verifyFormat("const struct Aaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaa = {\n" 2460 " .aaaaaaaaaaaaaaaaaaaaaaaaaaa = 1,\n" 2461 " .bbbbbbbbbbbbbbbbbbbbbbbbbbb = 2,\n" 2462 " .ccccccccccccccccccccccccccc = 3,\n" 2463 " .ddddddddddddddddddddddddddd = 4,\n" 2464 " .eeeeeeeeeeeeeeeeeeeeeeeeeee = 5};"); 2465 2466 verifyGoogleFormat("const struct A a = {.a = 1, .b = 2};"); 2467 } 2468 2469 TEST_F(FormatTest, NestedStaticInitializers) { 2470 verifyFormat("static A x = {{{}}};\n"); 2471 verifyFormat("static A x = {{{init1, init2, init3, init4},\n" 2472 " {init1, init2, init3, init4}}};", 2473 getLLVMStyleWithColumns(50)); 2474 2475 verifyFormat("somes Status::global_reps[3] = {\n" 2476 " {kGlobalRef, OK_CODE, NULL, NULL, NULL},\n" 2477 " {kGlobalRef, CANCELLED_CODE, NULL, NULL, NULL},\n" 2478 " {kGlobalRef, UNKNOWN_CODE, NULL, NULL, NULL}};", 2479 getLLVMStyleWithColumns(60)); 2480 verifyGoogleFormat("SomeType Status::global_reps[3] = {\n" 2481 " {kGlobalRef, OK_CODE, NULL, NULL, NULL},\n" 2482 " {kGlobalRef, CANCELLED_CODE, NULL, NULL, NULL},\n" 2483 " {kGlobalRef, UNKNOWN_CODE, NULL, NULL, NULL}};"); 2484 verifyFormat("CGRect cg_rect = {{rect.fLeft, rect.fTop},\n" 2485 " {rect.fRight - rect.fLeft, rect.fBottom - " 2486 "rect.fTop}};"); 2487 2488 verifyFormat( 2489 "SomeArrayOfSomeType a = {\n" 2490 " {{1, 2, 3},\n" 2491 " {1, 2, 3},\n" 2492 " {111111111111111111111111111111, 222222222222222222222222222222,\n" 2493 " 333333333333333333333333333333},\n" 2494 " {1, 2, 3},\n" 2495 " {1, 2, 3}}};"); 2496 verifyFormat( 2497 "SomeArrayOfSomeType a = {\n" 2498 " {{1, 2, 3}},\n" 2499 " {{1, 2, 3}},\n" 2500 " {{111111111111111111111111111111, 222222222222222222222222222222,\n" 2501 " 333333333333333333333333333333}},\n" 2502 " {{1, 2, 3}},\n" 2503 " {{1, 2, 3}}};"); 2504 2505 verifyFormat("struct {\n" 2506 " unsigned bit;\n" 2507 " const char *const name;\n" 2508 "} kBitsToOs[] = {{kOsMac, \"Mac\"},\n" 2509 " {kOsWin, \"Windows\"},\n" 2510 " {kOsLinux, \"Linux\"},\n" 2511 " {kOsCrOS, \"Chrome OS\"}};"); 2512 verifyFormat("struct {\n" 2513 " unsigned bit;\n" 2514 " const char *const name;\n" 2515 "} kBitsToOs[] = {\n" 2516 " {kOsMac, \"Mac\"},\n" 2517 " {kOsWin, \"Windows\"},\n" 2518 " {kOsLinux, \"Linux\"},\n" 2519 " {kOsCrOS, \"Chrome OS\"},\n" 2520 "};"); 2521 } 2522 2523 TEST_F(FormatTest, FormatsSmallMacroDefinitionsInSingleLine) { 2524 verifyFormat("#define ALooooooooooooooooooooooooooooooooooooooongMacro(" 2525 " \\\n" 2526 " aLoooooooooooooooooooooooongFuuuuuuuuuuuuuunctiooooooooo)"); 2527 } 2528 2529 TEST_F(FormatTest, DoesNotBreakPureVirtualFunctionDefinition) { 2530 verifyFormat("virtual void write(ELFWriter *writerrr,\n" 2531 " OwningPtr<FileOutputBuffer> &buffer) = 0;"); 2532 2533 // Do break defaulted and deleted functions. 2534 verifyFormat("virtual void ~Deeeeeeeestructor() =\n" 2535 " default;", 2536 getLLVMStyleWithColumns(40)); 2537 verifyFormat("virtual void ~Deeeeeeeestructor() =\n" 2538 " delete;", 2539 getLLVMStyleWithColumns(40)); 2540 } 2541 2542 TEST_F(FormatTest, BreaksStringLiteralsOnlyInDefine) { 2543 verifyFormat("# 1111 \"/aaaaaaaaa/aaaaaaaaaaaaaaaaaaa/aaaaaaaa.cpp\" 2 3", 2544 getLLVMStyleWithColumns(40)); 2545 verifyFormat("#line 11111 \"/aaaaaaaaa/aaaaaaaaaaaaaaaaaaa/aaaaaaaa.cpp\"", 2546 getLLVMStyleWithColumns(40)); 2547 EXPECT_EQ("#define Q \\\n" 2548 " \"/aaaaaaaaa/aaaaaaaaaaaaaaaaaaa/\" \\\n" 2549 " \"aaaaaaaa.cpp\"", 2550 format("#define Q \"/aaaaaaaaa/aaaaaaaaaaaaaaaaaaa/aaaaaaaa.cpp\"", 2551 getLLVMStyleWithColumns(40))); 2552 } 2553 2554 TEST_F(FormatTest, UnderstandsLinePPDirective) { 2555 EXPECT_EQ("# 123 \"A string literal\"", 2556 format(" # 123 \"A string literal\"")); 2557 } 2558 2559 TEST_F(FormatTest, LayoutUnknownPPDirective) { 2560 EXPECT_EQ("#;", format("#;")); 2561 verifyFormat("#\n;\n;\n;"); 2562 } 2563 2564 TEST_F(FormatTest, UnescapedEndOfLineEndsPPDirective) { 2565 EXPECT_EQ("#line 42 \"test\"\n", 2566 format("# \\\n line \\\n 42 \\\n \"test\"\n")); 2567 EXPECT_EQ("#define A B\n", format("# \\\n define \\\n A \\\n B\n", 2568 getLLVMStyleWithColumns(12))); 2569 } 2570 2571 TEST_F(FormatTest, EndOfFileEndsPPDirective) { 2572 EXPECT_EQ("#line 42 \"test\"", 2573 format("# \\\n line \\\n 42 \\\n \"test\"")); 2574 EXPECT_EQ("#define A B", format("# \\\n define \\\n A \\\n B")); 2575 } 2576 2577 TEST_F(FormatTest, DoesntRemoveUnknownTokens) { 2578 verifyFormat("#define A \\x20"); 2579 verifyFormat("#define A \\ x20"); 2580 EXPECT_EQ("#define A \\ x20", format("#define A \\ x20")); 2581 verifyFormat("#define A ''"); 2582 verifyFormat("#define A ''qqq"); 2583 verifyFormat("#define A `qqq"); 2584 verifyFormat("f(\"aaaa, bbbb, \"\\\"ccccc\\\"\");"); 2585 EXPECT_EQ("const char *c = STRINGIFY(\n" 2586 "\\na : b);", 2587 format("const char * c = STRINGIFY(\n" 2588 "\\na : b);")); 2589 2590 verifyFormat("a\r\\"); 2591 verifyFormat("a\v\\"); 2592 verifyFormat("a\f\\"); 2593 } 2594 2595 TEST_F(FormatTest, IndentsPPDirectiveInReducedSpace) { 2596 verifyFormat("#define A(BB)", getLLVMStyleWithColumns(13)); 2597 verifyFormat("#define A( \\\n BB)", getLLVMStyleWithColumns(12)); 2598 verifyFormat("#define A( \\\n A, B)", getLLVMStyleWithColumns(12)); 2599 // FIXME: We never break before the macro name. 2600 verifyFormat("#define AA( \\\n B)", getLLVMStyleWithColumns(12)); 2601 2602 verifyFormat("#define A A\n#define A A"); 2603 verifyFormat("#define A(X) A\n#define A A"); 2604 2605 verifyFormat("#define Something Other", getLLVMStyleWithColumns(23)); 2606 verifyFormat("#define Something \\\n Other", getLLVMStyleWithColumns(22)); 2607 } 2608 2609 TEST_F(FormatTest, HandlePreprocessorDirectiveContext) { 2610 EXPECT_EQ("// somecomment\n" 2611 "#include \"a.h\"\n" 2612 "#define A( \\\n" 2613 " A, B)\n" 2614 "#include \"b.h\"\n" 2615 "// somecomment\n", 2616 format(" // somecomment\n" 2617 " #include \"a.h\"\n" 2618 "#define A(A,\\\n" 2619 " B)\n" 2620 " #include \"b.h\"\n" 2621 " // somecomment\n", 2622 getLLVMStyleWithColumns(13))); 2623 } 2624 2625 TEST_F(FormatTest, LayoutSingleHash) { EXPECT_EQ("#\na;", format("#\na;")); } 2626 2627 TEST_F(FormatTest, LayoutCodeInMacroDefinitions) { 2628 EXPECT_EQ("#define A \\\n" 2629 " c; \\\n" 2630 " e;\n" 2631 "f;", 2632 format("#define A c; e;\n" 2633 "f;", 2634 getLLVMStyleWithColumns(14))); 2635 } 2636 2637 TEST_F(FormatTest, LayoutRemainingTokens) { EXPECT_EQ("{}", format("{}")); } 2638 2639 TEST_F(FormatTest, MacroDefinitionInsideStatement) { 2640 EXPECT_EQ("int x,\n" 2641 "#define A\n" 2642 " y;", 2643 format("int x,\n#define A\ny;")); 2644 } 2645 2646 TEST_F(FormatTest, HashInMacroDefinition) { 2647 EXPECT_EQ("#define A(c) L#c", format("#define A(c) L#c", getLLVMStyle())); 2648 verifyFormat("#define A \\\n b #c;", getLLVMStyleWithColumns(11)); 2649 verifyFormat("#define A \\\n" 2650 " { \\\n" 2651 " f(#c); \\\n" 2652 " }", 2653 getLLVMStyleWithColumns(11)); 2654 2655 verifyFormat("#define A(X) \\\n" 2656 " void function##X()", 2657 getLLVMStyleWithColumns(22)); 2658 2659 verifyFormat("#define A(a, b, c) \\\n" 2660 " void a##b##c()", 2661 getLLVMStyleWithColumns(22)); 2662 2663 verifyFormat("#define A void # ## #", getLLVMStyleWithColumns(22)); 2664 } 2665 2666 TEST_F(FormatTest, RespectWhitespaceInMacroDefinitions) { 2667 EXPECT_EQ("#define A (x)", format("#define A (x)")); 2668 EXPECT_EQ("#define A(x)", format("#define A(x)")); 2669 } 2670 2671 TEST_F(FormatTest, EmptyLinesInMacroDefinitions) { 2672 EXPECT_EQ("#define A b;", format("#define A \\\n" 2673 " \\\n" 2674 " b;", 2675 getLLVMStyleWithColumns(25))); 2676 EXPECT_EQ("#define A \\\n" 2677 " \\\n" 2678 " a; \\\n" 2679 " b;", 2680 format("#define A \\\n" 2681 " \\\n" 2682 " a; \\\n" 2683 " b;", 2684 getLLVMStyleWithColumns(11))); 2685 EXPECT_EQ("#define A \\\n" 2686 " a; \\\n" 2687 " \\\n" 2688 " b;", 2689 format("#define A \\\n" 2690 " a; \\\n" 2691 " \\\n" 2692 " b;", 2693 getLLVMStyleWithColumns(11))); 2694 } 2695 2696 TEST_F(FormatTest, MacroDefinitionsWithIncompleteCode) { 2697 verifyIncompleteFormat("#define A :"); 2698 verifyFormat("#define SOMECASES \\\n" 2699 " case 1: \\\n" 2700 " case 2\n", 2701 getLLVMStyleWithColumns(20)); 2702 verifyFormat("#define A template <typename T>"); 2703 verifyIncompleteFormat("#define STR(x) #x\n" 2704 "f(STR(this_is_a_string_literal{));"); 2705 verifyFormat("#pragma omp threadprivate( \\\n" 2706 " y)), // expected-warning", 2707 getLLVMStyleWithColumns(28)); 2708 verifyFormat("#d, = };"); 2709 verifyFormat("#if \"a"); 2710 verifyIncompleteFormat("({\n" 2711 "#define b \\\n" 2712 " } \\\n" 2713 " a\n" 2714 "a", 2715 getLLVMStyleWithColumns(15)); 2716 verifyFormat("#define A \\\n" 2717 " { \\\n" 2718 " {\n" 2719 "#define B \\\n" 2720 " } \\\n" 2721 " }", 2722 getLLVMStyleWithColumns(15)); 2723 verifyNoCrash("#if a\na(\n#else\n#endif\n{a"); 2724 verifyNoCrash("a={0,1\n#if a\n#else\n;\n#endif\n}"); 2725 verifyNoCrash("#if a\na(\n#else\n#endif\n) a {a,b,c,d,f,g};"); 2726 verifyNoCrash("#ifdef A\n a(\n #else\n #endif\n) = []() { \n)}"); 2727 } 2728 2729 TEST_F(FormatTest, MacrosWithoutTrailingSemicolon) { 2730 verifyFormat("SOME_TYPE_NAME abc;"); // Gated on the newline. 2731 EXPECT_EQ("class A : public QObject {\n" 2732 " Q_OBJECT\n" 2733 "\n" 2734 " A() {}\n" 2735 "};", 2736 format("class A : public QObject {\n" 2737 " Q_OBJECT\n" 2738 "\n" 2739 " A() {\n}\n" 2740 "} ;")); 2741 EXPECT_EQ("MACRO\n" 2742 "/*static*/ int i;", 2743 format("MACRO\n" 2744 " /*static*/ int i;")); 2745 EXPECT_EQ("SOME_MACRO\n" 2746 "namespace {\n" 2747 "void f();\n" 2748 "}", 2749 format("SOME_MACRO\n" 2750 " namespace {\n" 2751 "void f( );\n" 2752 "}")); 2753 // Only if the identifier contains at least 5 characters. 2754 EXPECT_EQ("HTTP f();", format("HTTP\nf();")); 2755 EXPECT_EQ("MACRO\nf();", format("MACRO\nf();")); 2756 // Only if everything is upper case. 2757 EXPECT_EQ("class A : public QObject {\n" 2758 " Q_Object A() {}\n" 2759 "};", 2760 format("class A : public QObject {\n" 2761 " Q_Object\n" 2762 " A() {\n}\n" 2763 "} ;")); 2764 2765 // Only if the next line can actually start an unwrapped line. 2766 EXPECT_EQ("SOME_WEIRD_LOG_MACRO << SomeThing;", 2767 format("SOME_WEIRD_LOG_MACRO\n" 2768 "<< SomeThing;")); 2769 2770 verifyFormat("VISIT_GL_CALL(GenBuffers, void, (GLsizei n, GLuint* buffers), " 2771 "(n, buffers))\n", 2772 getChromiumStyle(FormatStyle::LK_Cpp)); 2773 } 2774 2775 TEST_F(FormatTest, MacroCallsWithoutTrailingSemicolon) { 2776 EXPECT_EQ("INITIALIZE_PASS_BEGIN(ScopDetection, \"polly-detect\")\n" 2777 "INITIALIZE_AG_DEPENDENCY(AliasAnalysis)\n" 2778 "INITIALIZE_PASS_DEPENDENCY(DominatorTree)\n" 2779 "class X {};\n" 2780 "INITIALIZE_PASS_END(ScopDetection, \"polly-detect\")\n" 2781 "int *createScopDetectionPass() { return 0; }", 2782 format(" INITIALIZE_PASS_BEGIN(ScopDetection, \"polly-detect\")\n" 2783 " INITIALIZE_AG_DEPENDENCY(AliasAnalysis)\n" 2784 " INITIALIZE_PASS_DEPENDENCY(DominatorTree)\n" 2785 " class X {};\n" 2786 " INITIALIZE_PASS_END(ScopDetection, \"polly-detect\")\n" 2787 " int *createScopDetectionPass() { return 0; }")); 2788 // FIXME: We could probably treat IPC_BEGIN_MESSAGE_MAP/IPC_END_MESSAGE_MAP as 2789 // braces, so that inner block is indented one level more. 2790 EXPECT_EQ("int q() {\n" 2791 " IPC_BEGIN_MESSAGE_MAP(WebKitTestController, message)\n" 2792 " IPC_MESSAGE_HANDLER(xxx, qqq)\n" 2793 " IPC_END_MESSAGE_MAP()\n" 2794 "}", 2795 format("int q() {\n" 2796 " IPC_BEGIN_MESSAGE_MAP(WebKitTestController, message)\n" 2797 " IPC_MESSAGE_HANDLER(xxx, qqq)\n" 2798 " IPC_END_MESSAGE_MAP()\n" 2799 "}")); 2800 2801 // Same inside macros. 2802 EXPECT_EQ("#define LIST(L) \\\n" 2803 " L(A) \\\n" 2804 " L(B) \\\n" 2805 " L(C)", 2806 format("#define LIST(L) \\\n" 2807 " L(A) \\\n" 2808 " L(B) \\\n" 2809 " L(C)", 2810 getGoogleStyle())); 2811 2812 // These must not be recognized as macros. 2813 EXPECT_EQ("int q() {\n" 2814 " f(x);\n" 2815 " f(x) {}\n" 2816 " f(x)->g();\n" 2817 " f(x)->*g();\n" 2818 " f(x).g();\n" 2819 " f(x) = x;\n" 2820 " f(x) += x;\n" 2821 " f(x) -= x;\n" 2822 " f(x) *= x;\n" 2823 " f(x) /= x;\n" 2824 " f(x) %= x;\n" 2825 " f(x) &= x;\n" 2826 " f(x) |= x;\n" 2827 " f(x) ^= x;\n" 2828 " f(x) >>= x;\n" 2829 " f(x) <<= x;\n" 2830 " f(x)[y].z();\n" 2831 " LOG(INFO) << x;\n" 2832 " ifstream(x) >> x;\n" 2833 "}\n", 2834 format("int q() {\n" 2835 " f(x)\n;\n" 2836 " f(x)\n {}\n" 2837 " f(x)\n->g();\n" 2838 " f(x)\n->*g();\n" 2839 " f(x)\n.g();\n" 2840 " f(x)\n = x;\n" 2841 " f(x)\n += x;\n" 2842 " f(x)\n -= x;\n" 2843 " f(x)\n *= x;\n" 2844 " f(x)\n /= x;\n" 2845 " f(x)\n %= x;\n" 2846 " f(x)\n &= x;\n" 2847 " f(x)\n |= x;\n" 2848 " f(x)\n ^= x;\n" 2849 " f(x)\n >>= x;\n" 2850 " f(x)\n <<= x;\n" 2851 " f(x)\n[y].z();\n" 2852 " LOG(INFO)\n << x;\n" 2853 " ifstream(x)\n >> x;\n" 2854 "}\n")); 2855 EXPECT_EQ("int q() {\n" 2856 " F(x)\n" 2857 " if (1) {\n" 2858 " }\n" 2859 " F(x)\n" 2860 " while (1) {\n" 2861 " }\n" 2862 " F(x)\n" 2863 " G(x);\n" 2864 " F(x)\n" 2865 " try {\n" 2866 " Q();\n" 2867 " } catch (...) {\n" 2868 " }\n" 2869 "}\n", 2870 format("int q() {\n" 2871 "F(x)\n" 2872 "if (1) {}\n" 2873 "F(x)\n" 2874 "while (1) {}\n" 2875 "F(x)\n" 2876 "G(x);\n" 2877 "F(x)\n" 2878 "try { Q(); } catch (...) {}\n" 2879 "}\n")); 2880 EXPECT_EQ("class A {\n" 2881 " A() : t(0) {}\n" 2882 " A(int i) noexcept() : {}\n" 2883 " A(X x)\n" // FIXME: function-level try blocks are broken. 2884 " try : t(0) {\n" 2885 " } catch (...) {\n" 2886 " }\n" 2887 "};", 2888 format("class A {\n" 2889 " A()\n : t(0) {}\n" 2890 " A(int i)\n noexcept() : {}\n" 2891 " A(X x)\n" 2892 " try : t(0) {} catch (...) {}\n" 2893 "};")); 2894 EXPECT_EQ("class SomeClass {\n" 2895 "public:\n" 2896 " SomeClass() EXCLUSIVE_LOCK_FUNCTION(mu_);\n" 2897 "};", 2898 format("class SomeClass {\n" 2899 "public:\n" 2900 " SomeClass()\n" 2901 " EXCLUSIVE_LOCK_FUNCTION(mu_);\n" 2902 "};")); 2903 EXPECT_EQ("class SomeClass {\n" 2904 "public:\n" 2905 " SomeClass()\n" 2906 " EXCLUSIVE_LOCK_FUNCTION(mu_);\n" 2907 "};", 2908 format("class SomeClass {\n" 2909 "public:\n" 2910 " SomeClass()\n" 2911 " EXCLUSIVE_LOCK_FUNCTION(mu_);\n" 2912 "};", 2913 getLLVMStyleWithColumns(40))); 2914 } 2915 2916 TEST_F(FormatTest, LayoutMacroDefinitionsStatementsSpanningBlocks) { 2917 verifyFormat("#define A \\\n" 2918 " f({ \\\n" 2919 " g(); \\\n" 2920 " });", 2921 getLLVMStyleWithColumns(11)); 2922 } 2923 2924 TEST_F(FormatTest, IndentPreprocessorDirectivesAtZero) { 2925 EXPECT_EQ("{\n {\n#define A\n }\n}", format("{{\n#define A\n}}")); 2926 } 2927 2928 TEST_F(FormatTest, FormatHashIfNotAtStartOfLine) { 2929 verifyFormat("{\n { a #c; }\n}"); 2930 } 2931 2932 TEST_F(FormatTest, FormatUnbalancedStructuralElements) { 2933 EXPECT_EQ("#define A \\\n { \\\n {\nint i;", 2934 format("#define A { {\nint i;", getLLVMStyleWithColumns(11))); 2935 EXPECT_EQ("#define A \\\n } \\\n }\nint i;", 2936 format("#define A } }\nint i;", getLLVMStyleWithColumns(11))); 2937 } 2938 2939 TEST_F(FormatTest, EscapedNewlines) { 2940 EXPECT_EQ( 2941 "#define A \\\n int i; \\\n int j;", 2942 format("#define A \\\nint i;\\\n int j;", getLLVMStyleWithColumns(11))); 2943 EXPECT_EQ("#define A\n\nint i;", format("#define A \\\n\n int i;")); 2944 EXPECT_EQ("template <class T> f();", format("\\\ntemplate <class T> f();")); 2945 EXPECT_EQ("/* \\ \\ \\\n*/", format("\\\n/* \\ \\ \\\n*/")); 2946 EXPECT_EQ("<a\n\\\\\n>", format("<a\n\\\\\n>")); 2947 } 2948 2949 TEST_F(FormatTest, DontCrashOnBlockComments) { 2950 EXPECT_EQ( 2951 "int xxxxxxxxx; /* " 2952 "yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy\n" 2953 "zzzzzz\n" 2954 "0*/", 2955 format("int xxxxxxxxx; /* " 2956 "yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy zzzzzz\n" 2957 "0*/")); 2958 } 2959 2960 TEST_F(FormatTest, CalculateSpaceOnConsecutiveLinesInMacro) { 2961 verifyFormat("#define A \\\n" 2962 " int v( \\\n" 2963 " a); \\\n" 2964 " int i;", 2965 getLLVMStyleWithColumns(11)); 2966 } 2967 2968 TEST_F(FormatTest, MixingPreprocessorDirectivesAndNormalCode) { 2969 EXPECT_EQ( 2970 "#define ALooooooooooooooooooooooooooooooooooooooongMacro(" 2971 " \\\n" 2972 " aLoooooooooooooooooooooooongFuuuuuuuuuuuuuunctiooooooooo)\n" 2973 "\n" 2974 "AlooooooooooooooooooooooooooooooooooooooongCaaaaaaaaaal(\n" 2975 " aLooooooooooooooooooooooonPaaaaaaaaaaaaaaaaaaaaarmmmm);\n", 2976 format(" #define ALooooooooooooooooooooooooooooooooooooooongMacro(" 2977 "\\\n" 2978 "aLoooooooooooooooooooooooongFuuuuuuuuuuuuuunctiooooooooo)\n" 2979 " \n" 2980 " AlooooooooooooooooooooooooooooooooooooooongCaaaaaaaaaal(\n" 2981 " aLooooooooooooooooooooooonPaaaaaaaaaaaaaaaaaaaaarmmmm);\n")); 2982 } 2983 2984 TEST_F(FormatTest, LayoutStatementsAroundPreprocessorDirectives) { 2985 EXPECT_EQ("int\n" 2986 "#define A\n" 2987 " a;", 2988 format("int\n#define A\na;")); 2989 verifyFormat("functionCallTo(\n" 2990 " someOtherFunction(\n" 2991 " withSomeParameters, whichInSequence,\n" 2992 " areLongerThanALine(andAnotherCall,\n" 2993 "#define A B\n" 2994 " withMoreParamters,\n" 2995 " whichStronglyInfluenceTheLayout),\n" 2996 " andMoreParameters),\n" 2997 " trailing);", 2998 getLLVMStyleWithColumns(69)); 2999 verifyFormat("Foo::Foo()\n" 3000 "#ifdef BAR\n" 3001 " : baz(0)\n" 3002 "#endif\n" 3003 "{\n" 3004 "}"); 3005 verifyFormat("void f() {\n" 3006 " if (true)\n" 3007 "#ifdef A\n" 3008 " f(42);\n" 3009 " x();\n" 3010 "#else\n" 3011 " g();\n" 3012 " x();\n" 3013 "#endif\n" 3014 "}"); 3015 verifyFormat("void f(param1, param2,\n" 3016 " param3,\n" 3017 "#ifdef A\n" 3018 " param4(param5,\n" 3019 "#ifdef A1\n" 3020 " param6,\n" 3021 "#ifdef A2\n" 3022 " param7),\n" 3023 "#else\n" 3024 " param8),\n" 3025 " param9,\n" 3026 "#endif\n" 3027 " param10,\n" 3028 "#endif\n" 3029 " param11)\n" 3030 "#else\n" 3031 " param12)\n" 3032 "#endif\n" 3033 "{\n" 3034 " x();\n" 3035 "}", 3036 getLLVMStyleWithColumns(28)); 3037 verifyFormat("#if 1\n" 3038 "int i;"); 3039 verifyFormat("#if 1\n" 3040 "#endif\n" 3041 "#if 1\n" 3042 "#else\n" 3043 "#endif\n"); 3044 verifyFormat("DEBUG({\n" 3045 " return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3046 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;\n" 3047 "});\n" 3048 "#if a\n" 3049 "#else\n" 3050 "#endif"); 3051 3052 verifyIncompleteFormat("void f(\n" 3053 "#if A\n" 3054 " );\n" 3055 "#else\n" 3056 "#endif"); 3057 } 3058 3059 TEST_F(FormatTest, GraciouslyHandleIncorrectPreprocessorConditions) { 3060 verifyFormat("#endif\n" 3061 "#if B"); 3062 } 3063 3064 TEST_F(FormatTest, FormatsJoinedLinesOnSubsequentRuns) { 3065 FormatStyle SingleLine = getLLVMStyle(); 3066 SingleLine.AllowShortIfStatementsOnASingleLine = true; 3067 verifyFormat("#if 0\n" 3068 "#elif 1\n" 3069 "#endif\n" 3070 "void foo() {\n" 3071 " if (test) foo2();\n" 3072 "}", 3073 SingleLine); 3074 } 3075 3076 TEST_F(FormatTest, LayoutBlockInsideParens) { 3077 verifyFormat("functionCall({ int i; });"); 3078 verifyFormat("functionCall({\n" 3079 " int i;\n" 3080 " int j;\n" 3081 "});"); 3082 verifyFormat("functionCall(\n" 3083 " {\n" 3084 " int i;\n" 3085 " int j;\n" 3086 " },\n" 3087 " aaaa, bbbb, cccc);"); 3088 verifyFormat("functionA(functionB({\n" 3089 " int i;\n" 3090 " int j;\n" 3091 " }),\n" 3092 " aaaa, bbbb, cccc);"); 3093 verifyFormat("functionCall(\n" 3094 " {\n" 3095 " int i;\n" 3096 " int j;\n" 3097 " },\n" 3098 " aaaa, bbbb, // comment\n" 3099 " cccc);"); 3100 verifyFormat("functionA(functionB({\n" 3101 " int i;\n" 3102 " int j;\n" 3103 " }),\n" 3104 " aaaa, bbbb, // comment\n" 3105 " cccc);"); 3106 verifyFormat("functionCall(aaaa, bbbb, { int i; });"); 3107 verifyFormat("functionCall(aaaa, bbbb, {\n" 3108 " int i;\n" 3109 " int j;\n" 3110 "});"); 3111 verifyFormat( 3112 "Aaa(\n" // FIXME: There shouldn't be a linebreak here. 3113 " {\n" 3114 " int i; // break\n" 3115 " },\n" 3116 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb,\n" 3117 " ccccccccccccccccc));"); 3118 verifyFormat("DEBUG({\n" 3119 " if (a)\n" 3120 " f();\n" 3121 "});"); 3122 } 3123 3124 TEST_F(FormatTest, LayoutBlockInsideStatement) { 3125 EXPECT_EQ("SOME_MACRO { int i; }\n" 3126 "int i;", 3127 format(" SOME_MACRO {int i;} int i;")); 3128 } 3129 3130 TEST_F(FormatTest, LayoutNestedBlocks) { 3131 verifyFormat("void AddOsStrings(unsigned bitmask) {\n" 3132 " struct s {\n" 3133 " int i;\n" 3134 " };\n" 3135 " s kBitsToOs[] = {{10}};\n" 3136 " for (int i = 0; i < 10; ++i)\n" 3137 " return;\n" 3138 "}"); 3139 verifyFormat("call(parameter, {\n" 3140 " something();\n" 3141 " // Comment using all columns.\n" 3142 " somethingelse();\n" 3143 "});", 3144 getLLVMStyleWithColumns(40)); 3145 verifyFormat("DEBUG( //\n" 3146 " { f(); }, a);"); 3147 verifyFormat("DEBUG( //\n" 3148 " {\n" 3149 " f(); //\n" 3150 " },\n" 3151 " a);"); 3152 3153 EXPECT_EQ("call(parameter, {\n" 3154 " something();\n" 3155 " // Comment too\n" 3156 " // looooooooooong.\n" 3157 " somethingElse();\n" 3158 "});", 3159 format("call(parameter, {\n" 3160 " something();\n" 3161 " // Comment too looooooooooong.\n" 3162 " somethingElse();\n" 3163 "});", 3164 getLLVMStyleWithColumns(29))); 3165 EXPECT_EQ("DEBUG({ int i; });", format("DEBUG({ int i; });")); 3166 EXPECT_EQ("DEBUG({ // comment\n" 3167 " int i;\n" 3168 "});", 3169 format("DEBUG({ // comment\n" 3170 "int i;\n" 3171 "});")); 3172 EXPECT_EQ("DEBUG({\n" 3173 " int i;\n" 3174 "\n" 3175 " // comment\n" 3176 " int j;\n" 3177 "});", 3178 format("DEBUG({\n" 3179 " int i;\n" 3180 "\n" 3181 " // comment\n" 3182 " int j;\n" 3183 "});")); 3184 3185 verifyFormat("DEBUG({\n" 3186 " if (a)\n" 3187 " return;\n" 3188 "});"); 3189 verifyGoogleFormat("DEBUG({\n" 3190 " if (a) return;\n" 3191 "});"); 3192 FormatStyle Style = getGoogleStyle(); 3193 Style.ColumnLimit = 45; 3194 verifyFormat("Debug(aaaaa,\n" 3195 " {\n" 3196 " if (aaaaaaaaaaaaaaaaaaaaaaaa) return;\n" 3197 " },\n" 3198 " a);", 3199 Style); 3200 3201 verifyFormat("SomeFunction({MACRO({ return output; }), b});"); 3202 3203 verifyNoCrash("^{v^{a}}"); 3204 } 3205 3206 TEST_F(FormatTest, FormatNestedBlocksInMacros) { 3207 EXPECT_EQ("#define MACRO() \\\n" 3208 " Debug(aaa, /* force line break */ \\\n" 3209 " { \\\n" 3210 " int i; \\\n" 3211 " int j; \\\n" 3212 " })", 3213 format("#define MACRO() Debug(aaa, /* force line break */ \\\n" 3214 " { int i; int j; })", 3215 getGoogleStyle())); 3216 3217 EXPECT_EQ("#define A \\\n" 3218 " [] { \\\n" 3219 " xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx( \\\n" 3220 " xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx); \\\n" 3221 " }", 3222 format("#define A [] { xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx( \\\n" 3223 "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx); }", 3224 getGoogleStyle())); 3225 } 3226 3227 TEST_F(FormatTest, PutEmptyBlocksIntoOneLine) { 3228 EXPECT_EQ("{}", format("{}")); 3229 verifyFormat("enum E {};"); 3230 verifyFormat("enum E {}"); 3231 } 3232 3233 TEST_F(FormatTest, FormatBeginBlockEndMacros) { 3234 FormatStyle Style = getLLVMStyle(); 3235 Style.MacroBlockBegin = "^[A-Z_]+_BEGIN$"; 3236 Style.MacroBlockEnd = "^[A-Z_]+_END$"; 3237 verifyFormat("FOO_BEGIN\n" 3238 " FOO_ENTRY\n" 3239 "FOO_END", Style); 3240 verifyFormat("FOO_BEGIN\n" 3241 " NESTED_FOO_BEGIN\n" 3242 " NESTED_FOO_ENTRY\n" 3243 " NESTED_FOO_END\n" 3244 "FOO_END", Style); 3245 verifyFormat("FOO_BEGIN(Foo, Bar)\n" 3246 " int x;\n" 3247 " x = 1;\n" 3248 "FOO_END(Baz)", Style); 3249 } 3250 3251 //===----------------------------------------------------------------------===// 3252 // Line break tests. 3253 //===----------------------------------------------------------------------===// 3254 3255 TEST_F(FormatTest, PreventConfusingIndents) { 3256 verifyFormat( 3257 "void f() {\n" 3258 " SomeLongMethodName(SomeReallyLongMethod(CallOtherReallyLongMethod(\n" 3259 " parameter, parameter, parameter)),\n" 3260 " SecondLongCall(parameter));\n" 3261 "}"); 3262 verifyFormat( 3263 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3264 " aaaaaaaaaaaaaaaaaaaaaaaa(\n" 3265 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 3266 " aaaaaaaaaaaaaaaaaaaaaaaa);"); 3267 verifyFormat( 3268 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3269 " [aaaaaaaaaaaaaaaaaaaaaaaa\n" 3270 " [aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa]\n" 3271 " [aaaaaaaaaaaaaaaaaaaaaaaa]];"); 3272 verifyFormat( 3273 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa<\n" 3274 " aaaaaaaaaaaaaaaaaaaaaaaa<\n" 3275 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>,\n" 3276 " aaaaaaaaaaaaaaaaaaaaaaaa>;"); 3277 verifyFormat("int a = bbbb && ccc && fffff(\n" 3278 "#define A Just forcing a new line\n" 3279 " ddd);"); 3280 } 3281 3282 TEST_F(FormatTest, LineBreakingInBinaryExpressions) { 3283 verifyFormat( 3284 "bool aaaaaaa =\n" 3285 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaa).aaaaaaaaaaaaaaaaaaa() ||\n" 3286 " bbbbbbbb();"); 3287 verifyFormat( 3288 "bool aaaaaaa =\n" 3289 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaa).aaaaaaaaaaaaaaaaaaa() or\n" 3290 " bbbbbbbb();"); 3291 3292 verifyFormat("bool aaaaaaaaaaaaaaaaaaaaa =\n" 3293 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa != bbbbbbbbbbbbbbbbbb &&\n" 3294 " ccccccccc == ddddddddddd;"); 3295 verifyFormat("bool aaaaaaaaaaaaaaaaaaaaa =\n" 3296 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa != bbbbbbbbbbbbbbbbbb and\n" 3297 " ccccccccc == ddddddddddd;"); 3298 verifyFormat( 3299 "bool aaaaaaaaaaaaaaaaaaaaa =\n" 3300 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa not_eq bbbbbbbbbbbbbbbbbb and\n" 3301 " ccccccccc == ddddddddddd;"); 3302 3303 verifyFormat("aaaaaa = aaaaaaa(aaaaaaa, // break\n" 3304 " aaaaaa) &&\n" 3305 " bbbbbb && cccccc;"); 3306 verifyFormat("aaaaaa = aaaaaaa(aaaaaaa, // break\n" 3307 " aaaaaa) >>\n" 3308 " bbbbbb;"); 3309 verifyFormat("Whitespaces.addUntouchableComment(\n" 3310 " SourceMgr.getSpellingColumnNumber(\n" 3311 " TheLine.Last->FormatTok.Tok.getLocation()) -\n" 3312 " 1);"); 3313 3314 verifyFormat("if ((aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 3315 " bbbbbbbbbbbbbbbbbb) && // aaaaaaaaaaaaaaaa\n" 3316 " cccccc) {\n}"); 3317 verifyFormat("b = a &&\n" 3318 " // Comment\n" 3319 " b.c && d;"); 3320 3321 // If the LHS of a comparison is not a binary expression itself, the 3322 // additional linebreak confuses many people. 3323 verifyFormat( 3324 "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3325 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) > 5) {\n" 3326 "}"); 3327 verifyFormat( 3328 "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3329 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) == 5) {\n" 3330 "}"); 3331 verifyFormat( 3332 "if (aaaaaaaaaaaaaaaaaaaaaaaaaa.aaaaaaaaaaaaaaaaaaaaaa(\n" 3333 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) == 5) {\n" 3334 "}"); 3335 // Even explicit parentheses stress the precedence enough to make the 3336 // additional break unnecessary. 3337 verifyFormat("if ((aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3338 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) == 5) {\n" 3339 "}"); 3340 // This cases is borderline, but with the indentation it is still readable. 3341 verifyFormat( 3342 "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3343 " aaaaaaaaaaaaaaa) > aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3344 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n" 3345 "}", 3346 getLLVMStyleWithColumns(75)); 3347 3348 // If the LHS is a binary expression, we should still use the additional break 3349 // as otherwise the formatting hides the operator precedence. 3350 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3351 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n" 3352 " 5) {\n" 3353 "}"); 3354 3355 FormatStyle OnePerLine = getLLVMStyle(); 3356 OnePerLine.BinPackParameters = false; 3357 verifyFormat( 3358 "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 3359 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 3360 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}", 3361 OnePerLine); 3362 } 3363 3364 TEST_F(FormatTest, ExpressionIndentation) { 3365 verifyFormat("bool value = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3366 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3367 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n" 3368 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n" 3369 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb +\n" 3370 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb &&\n" 3371 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n" 3372 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa >\n" 3373 " ccccccccccccccccccccccccccccccccccccccccc;"); 3374 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n" 3375 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3376 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n" 3377 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}"); 3378 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3379 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n" 3380 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n" 3381 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}"); 3382 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n" 3383 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n" 3384 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3385 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}"); 3386 verifyFormat("if () {\n" 3387 "} else if (aaaaa &&\n" 3388 " bbbbb > // break\n" 3389 " ccccc) {\n" 3390 "}"); 3391 3392 // Presence of a trailing comment used to change indentation of b. 3393 verifyFormat("return aaaaaaaaaaaaaaaaaaa +\n" 3394 " b;\n" 3395 "return aaaaaaaaaaaaaaaaaaa +\n" 3396 " b; //", 3397 getLLVMStyleWithColumns(30)); 3398 } 3399 3400 TEST_F(FormatTest, ExpressionIndentationBreakingBeforeOperators) { 3401 // Not sure what the best system is here. Like this, the LHS can be found 3402 // immediately above an operator (everything with the same or a higher 3403 // indent). The RHS is aligned right of the operator and so compasses 3404 // everything until something with the same indent as the operator is found. 3405 // FIXME: Is this a good system? 3406 FormatStyle Style = getLLVMStyle(); 3407 Style.BreakBeforeBinaryOperators = FormatStyle::BOS_All; 3408 verifyFormat( 3409 "bool value = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3410 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3411 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3412 " == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3413 " * bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3414 " + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3415 " && aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3416 " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3417 " > ccccccccccccccccccccccccccccccccccccccccc;", 3418 Style); 3419 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3420 " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3421 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3422 " == bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}", 3423 Style); 3424 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3425 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3426 " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3427 " == bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}", 3428 Style); 3429 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3430 " == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3431 " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3432 " + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}", 3433 Style); 3434 verifyFormat("if () {\n" 3435 "} else if (aaaaa\n" 3436 " && bbbbb // break\n" 3437 " > ccccc) {\n" 3438 "}", 3439 Style); 3440 verifyFormat("return (a)\n" 3441 " // comment\n" 3442 " + b;", 3443 Style); 3444 verifyFormat( 3445 "int aaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3446 " * bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3447 " + cc;", 3448 Style); 3449 3450 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3451 " = aaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaaaaa;", 3452 Style); 3453 3454 // Forced by comments. 3455 verifyFormat( 3456 "unsigned ContentSize =\n" 3457 " sizeof(int16_t) // DWARF ARange version number\n" 3458 " + sizeof(int32_t) // Offset of CU in the .debug_info section\n" 3459 " + sizeof(int8_t) // Pointer Size (in bytes)\n" 3460 " + sizeof(int8_t); // Segment Size (in bytes)"); 3461 3462 verifyFormat("return boost::fusion::at_c<0>(iiii).second\n" 3463 " == boost::fusion::at_c<1>(iiii).second;", 3464 Style); 3465 3466 Style.ColumnLimit = 60; 3467 verifyFormat("zzzzzzzzzz\n" 3468 " = bbbbbbbbbbbbbbbbb\n" 3469 " >> aaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaa);", 3470 Style); 3471 } 3472 3473 TEST_F(FormatTest, NoOperandAlignment) { 3474 FormatStyle Style = getLLVMStyle(); 3475 Style.AlignOperands = false; 3476 Style.BreakBeforeBinaryOperators = FormatStyle::BOS_NonAssignment; 3477 verifyFormat("bool value = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3478 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3479 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3480 " == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3481 " * bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3482 " + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3483 " && aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3484 " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3485 " > ccccccccccccccccccccccccccccccccccccccccc;", 3486 Style); 3487 3488 verifyFormat("int aaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3489 " * bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3490 " + cc;", 3491 Style); 3492 verifyFormat("int a = aa\n" 3493 " + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3494 " * cccccccccccccccccccccccccccccccccccc;", 3495 Style); 3496 3497 Style.AlignAfterOpenBracket = false; 3498 verifyFormat("return (a > b\n" 3499 " // comment1\n" 3500 " // comment2\n" 3501 " || c);", 3502 Style); 3503 } 3504 3505 TEST_F(FormatTest, BreakingBeforeNonAssigmentOperators) { 3506 FormatStyle Style = getLLVMStyle(); 3507 Style.BreakBeforeBinaryOperators = FormatStyle::BOS_NonAssignment; 3508 verifyFormat("int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 3509 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3510 " + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;", 3511 Style); 3512 } 3513 3514 TEST_F(FormatTest, ConstructorInitializers) { 3515 verifyFormat("Constructor() : Initializer(FitsOnTheLine) {}"); 3516 verifyFormat("Constructor() : Inttializer(FitsOnTheLine) {}", 3517 getLLVMStyleWithColumns(45)); 3518 verifyFormat("Constructor()\n" 3519 " : Inttializer(FitsOnTheLine) {}", 3520 getLLVMStyleWithColumns(44)); 3521 verifyFormat("Constructor()\n" 3522 " : Inttializer(FitsOnTheLine) {}", 3523 getLLVMStyleWithColumns(43)); 3524 3525 verifyFormat("template <typename T>\n" 3526 "Constructor() : Initializer(FitsOnTheLine) {}", 3527 getLLVMStyleWithColumns(45)); 3528 3529 verifyFormat( 3530 "SomeClass::Constructor()\n" 3531 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaaaa(aaaaaaaaaaaa) {}"); 3532 3533 verifyFormat( 3534 "SomeClass::Constructor()\n" 3535 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 3536 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}"); 3537 verifyFormat( 3538 "SomeClass::Constructor()\n" 3539 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 3540 " aaaaaaaaaaaaaaa(aaaaaaaaaaaa) {}"); 3541 verifyFormat("Constructor(aaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3542 " aaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 3543 " : aaaaaaaaaa(aaaaaa) {}"); 3544 3545 verifyFormat("Constructor()\n" 3546 " : aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 3547 " aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3548 " aaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 3549 " aaaaaaaaaaaaaaaaaaaaaaa() {}"); 3550 3551 verifyFormat("Constructor()\n" 3552 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3553 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}"); 3554 3555 verifyFormat("Constructor(int Parameter = 0)\n" 3556 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaa),\n" 3557 " aaaaaaaaaaaa(aaaaaaaaaaaaaaaaa) {}"); 3558 verifyFormat("Constructor()\n" 3559 " : aaaaaaaaaaaaaaaaaaaa(a), bbbbbbbbbbbbbbbbbbbbbbbb(b) {\n" 3560 "}", 3561 getLLVMStyleWithColumns(60)); 3562 verifyFormat("Constructor()\n" 3563 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3564 " aaaaaaaaaaaaaaaaaaaaaaaaa(aaaa, aaaa)) {}"); 3565 3566 // Here a line could be saved by splitting the second initializer onto two 3567 // lines, but that is not desirable. 3568 verifyFormat("Constructor()\n" 3569 " : aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaa),\n" 3570 " aaaaaaaaaaa(aaaaaaaaaaa),\n" 3571 " aaaaaaaaaaaaaaaaaaaaat(aaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}"); 3572 3573 FormatStyle OnePerLine = getLLVMStyle(); 3574 OnePerLine.ConstructorInitializerAllOnOneLineOrOnePerLine = true; 3575 verifyFormat("SomeClass::Constructor()\n" 3576 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 3577 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 3578 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}", 3579 OnePerLine); 3580 verifyFormat("SomeClass::Constructor()\n" 3581 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), // Some comment\n" 3582 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 3583 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}", 3584 OnePerLine); 3585 verifyFormat("MyClass::MyClass(int var)\n" 3586 " : some_var_(var), // 4 space indent\n" 3587 " some_other_var_(var + 1) { // lined up\n" 3588 "}", 3589 OnePerLine); 3590 verifyFormat("Constructor()\n" 3591 " : aaaaa(aaaaaa),\n" 3592 " aaaaa(aaaaaa),\n" 3593 " aaaaa(aaaaaa),\n" 3594 " aaaaa(aaaaaa),\n" 3595 " aaaaa(aaaaaa) {}", 3596 OnePerLine); 3597 verifyFormat("Constructor()\n" 3598 " : aaaaa(aaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaa,\n" 3599 " aaaaaaaaaaaaaaaaaaaaaa) {}", 3600 OnePerLine); 3601 3602 EXPECT_EQ("Constructor()\n" 3603 " : // Comment forcing unwanted break.\n" 3604 " aaaa(aaaa) {}", 3605 format("Constructor() :\n" 3606 " // Comment forcing unwanted break.\n" 3607 " aaaa(aaaa) {}")); 3608 } 3609 3610 TEST_F(FormatTest, MemoizationTests) { 3611 // This breaks if the memoization lookup does not take \c Indent and 3612 // \c LastSpace into account. 3613 verifyFormat( 3614 "extern CFRunLoopTimerRef\n" 3615 "CFRunLoopTimerCreate(CFAllocatorRef allocato, CFAbsoluteTime fireDate,\n" 3616 " CFTimeInterval interval, CFOptionFlags flags,\n" 3617 " CFIndex order, CFRunLoopTimerCallBack callout,\n" 3618 " CFRunLoopTimerContext *context) {}"); 3619 3620 // Deep nesting somewhat works around our memoization. 3621 verifyFormat( 3622 "aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(\n" 3623 " aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(\n" 3624 " aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(\n" 3625 " aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(\n" 3626 " aaaaa())))))))))))))))))))))))))))))))))))))));", 3627 getLLVMStyleWithColumns(65)); 3628 verifyFormat( 3629 "aaaaa(\n" 3630 " aaaaa,\n" 3631 " aaaaa(\n" 3632 " aaaaa,\n" 3633 " aaaaa(\n" 3634 " aaaaa,\n" 3635 " aaaaa(\n" 3636 " aaaaa,\n" 3637 " aaaaa(\n" 3638 " aaaaa,\n" 3639 " aaaaa(\n" 3640 " aaaaa,\n" 3641 " aaaaa(\n" 3642 " aaaaa,\n" 3643 " aaaaa(\n" 3644 " aaaaa,\n" 3645 " aaaaa(\n" 3646 " aaaaa,\n" 3647 " aaaaa(\n" 3648 " aaaaa,\n" 3649 " aaaaa(\n" 3650 " aaaaa,\n" 3651 " aaaaa(\n" 3652 " aaaaa,\n" 3653 " aaaaa))))))))))));", 3654 getLLVMStyleWithColumns(65)); 3655 verifyFormat( 3656 "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" 3657 " a),\n" 3658 " a),\n" 3659 " a),\n" 3660 " a),\n" 3661 " a),\n" 3662 " a),\n" 3663 " a),\n" 3664 " a),\n" 3665 " a),\n" 3666 " a),\n" 3667 " a),\n" 3668 " a),\n" 3669 " a),\n" 3670 " a),\n" 3671 " a),\n" 3672 " a),\n" 3673 " a)", 3674 getLLVMStyleWithColumns(65)); 3675 3676 // This test takes VERY long when memoization is broken. 3677 FormatStyle OnePerLine = getLLVMStyle(); 3678 OnePerLine.ConstructorInitializerAllOnOneLineOrOnePerLine = true; 3679 OnePerLine.BinPackParameters = false; 3680 std::string input = "Constructor()\n" 3681 " : aaaa(a,\n"; 3682 for (unsigned i = 0, e = 80; i != e; ++i) { 3683 input += " a,\n"; 3684 } 3685 input += " a) {}"; 3686 verifyFormat(input, OnePerLine); 3687 } 3688 3689 TEST_F(FormatTest, BreaksAsHighAsPossible) { 3690 verifyFormat( 3691 "void f() {\n" 3692 " if ((aaaaaaaaaaaaaaaaaaaaaaaaaaaaa && aaaaaaaaaaaaaaaaaaaaaaaaaa) ||\n" 3693 " (bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb && bbbbbbbbbbbbbbbbbbbbbbbbbb))\n" 3694 " f();\n" 3695 "}"); 3696 verifyFormat("if (Intervals[i].getRange().getFirst() <\n" 3697 " Intervals[i - 1].getRange().getLast()) {\n}"); 3698 } 3699 3700 TEST_F(FormatTest, BreaksFunctionDeclarations) { 3701 // Principially, we break function declarations in a certain order: 3702 // 1) break amongst arguments. 3703 verifyFormat("Aaaaaaaaaaaaaa bbbbbbbbbbbbbb(Cccccccccccccc cccccccccccccc,\n" 3704 " Cccccccccccccc cccccccccccccc);"); 3705 verifyFormat("template <class TemplateIt>\n" 3706 "SomeReturnType SomeFunction(TemplateIt begin, TemplateIt end,\n" 3707 " TemplateIt *stop) {}"); 3708 3709 // 2) break after return type. 3710 verifyFormat( 3711 "Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3712 "bbbbbbbbbbbbbb(Cccccccccccccc cccccccccccccccccccccccccc);", 3713 getGoogleStyle()); 3714 3715 // 3) break after (. 3716 verifyFormat( 3717 "Aaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbbbbbb(\n" 3718 " Cccccccccccccccccccccccccccccc cccccccccccccccccccccccccccccccc);", 3719 getGoogleStyle()); 3720 3721 // 4) break before after nested name specifiers. 3722 verifyFormat( 3723 "Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3724 "SomeClasssssssssssssssssssssssssssssssssssssss::\n" 3725 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(Cccccccccccccc cccccccccc);", 3726 getGoogleStyle()); 3727 3728 // However, there are exceptions, if a sufficient amount of lines can be 3729 // saved. 3730 // FIXME: The precise cut-offs wrt. the number of saved lines might need some 3731 // more adjusting. 3732 verifyFormat("Aaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbb(Cccccccccccccc cccccccccc,\n" 3733 " Cccccccccccccc cccccccccc,\n" 3734 " Cccccccccccccc cccccccccc,\n" 3735 " Cccccccccccccc cccccccccc,\n" 3736 " Cccccccccccccc cccccccccc);"); 3737 verifyFormat( 3738 "Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3739 "bbbbbbbbbbb(Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n" 3740 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n" 3741 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc);", 3742 getGoogleStyle()); 3743 verifyFormat( 3744 "Aaaaaaaaaa bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(Cccccccccccccc cccccccccc,\n" 3745 " Cccccccccccccc cccccccccc,\n" 3746 " Cccccccccccccc cccccccccc,\n" 3747 " Cccccccccccccc cccccccccc,\n" 3748 " Cccccccccccccc cccccccccc,\n" 3749 " Cccccccccccccc cccccccccc,\n" 3750 " Cccccccccccccc cccccccccc);"); 3751 verifyFormat("Aaaaaaaaaa bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(\n" 3752 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n" 3753 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n" 3754 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n" 3755 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc);"); 3756 3757 // Break after multi-line parameters. 3758 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3759 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3760 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3761 " bbbb bbbb);"); 3762 verifyFormat("void SomeLoooooooooooongFunction(\n" 3763 " std::unique_ptr<aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>\n" 3764 " aaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3765 " int bbbbbbbbbbbbb);"); 3766 3767 // Treat overloaded operators like other functions. 3768 verifyFormat("SomeLoooooooooooooooooooooooooogType\n" 3769 "operator>(const SomeLoooooooooooooooooooooooooogType &other);"); 3770 verifyFormat("SomeLoooooooooooooooooooooooooogType\n" 3771 "operator>>(const SomeLooooooooooooooooooooooooogType &other);"); 3772 verifyFormat("SomeLoooooooooooooooooooooooooogType\n" 3773 "operator<<(const SomeLooooooooooooooooooooooooogType &other);"); 3774 verifyGoogleFormat( 3775 "SomeLoooooooooooooooooooooooooooooogType operator>>(\n" 3776 " const SomeLooooooooogType &a, const SomeLooooooooogType &b);"); 3777 verifyGoogleFormat( 3778 "SomeLoooooooooooooooooooooooooooooogType operator<<(\n" 3779 " const SomeLooooooooogType &a, const SomeLooooooooogType &b);"); 3780 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3781 " int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa = 1);"); 3782 verifyFormat("aaaaaaaaaaaaaaaaaaaaaa\n" 3783 "aaaaaaaaaaaaaaaaaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaa = 1);"); 3784 verifyGoogleFormat( 3785 "typename aaaaaaaaaa<aaaaaa>::aaaaaaaaaaa\n" 3786 "aaaaaaaaaa<aaaaaa>::aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3787 " bool *aaaaaaaaaaaaaaaaaa, bool *aa) {}"); 3788 3789 FormatStyle Style = getLLVMStyle(); 3790 Style.PointerAlignment = FormatStyle::PAS_Left; 3791 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3792 " aaaaaaaaaaaaaaaaaaaaaaaaa* const aaaaaaaaaaaa) {}", 3793 Style); 3794 verifyFormat("void aaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa*\n" 3795 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}", 3796 Style); 3797 } 3798 3799 TEST_F(FormatTest, TrailingReturnType) { 3800 verifyFormat("auto foo() -> int;\n"); 3801 verifyFormat("struct S {\n" 3802 " auto bar() const -> int;\n" 3803 "};"); 3804 verifyFormat("template <size_t Order, typename T>\n" 3805 "auto load_img(const std::string &filename)\n" 3806 " -> alias::tensor<Order, T, mem::tag::cpu> {}"); 3807 verifyFormat("auto SomeFunction(A aaaaaaaaaaaaaaaaaaaaa) const\n" 3808 " -> decltype(f(aaaaaaaaaaaaaaaaaaaaa)) {}"); 3809 verifyFormat("auto doSomething(Aaaaaa *aaaaaa) -> decltype(aaaaaa->f()) {}"); 3810 verifyFormat("template <typename T>\n" 3811 "auto aaaaaaaaaaaaaaaaaaaaaa(T t)\n" 3812 " -> decltype(eaaaaaaaaaaaaaaa<T>(t.a).aaaaaaaa());"); 3813 3814 // Not trailing return types. 3815 verifyFormat("void f() { auto a = b->c(); }"); 3816 } 3817 3818 TEST_F(FormatTest, BreaksFunctionDeclarationsWithTrailingTokens) { 3819 // Avoid breaking before trailing 'const' or other trailing annotations, if 3820 // they are not function-like. 3821 FormatStyle Style = getGoogleStyle(); 3822 Style.ColumnLimit = 47; 3823 verifyFormat("void someLongFunction(\n" 3824 " int someLoooooooooooooongParameter) const {\n}", 3825 getLLVMStyleWithColumns(47)); 3826 verifyFormat("LoooooongReturnType\n" 3827 "someLoooooooongFunction() const {}", 3828 getLLVMStyleWithColumns(47)); 3829 verifyFormat("LoooooongReturnType someLoooooooongFunction()\n" 3830 " const {}", 3831 Style); 3832 verifyFormat("void SomeFunction(aaaaa aaaaaaaaaaaaaaaaaaaa,\n" 3833 " aaaaa aaaaaaaaaaaaaaaaaaaa) OVERRIDE;"); 3834 verifyFormat("void SomeFunction(aaaaa aaaaaaaaaaaaaaaaaaaa,\n" 3835 " aaaaa aaaaaaaaaaaaaaaaaaaa) OVERRIDE FINAL;"); 3836 verifyFormat("void SomeFunction(aaaaa aaaaaaaaaaaaaaaaaaaa,\n" 3837 " aaaaa aaaaaaaaaaaaaaaaaaaa) override final;"); 3838 verifyFormat("virtual void aaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaa aaaa,\n" 3839 " aaaaaaaaaaa aaaaa) const override;"); 3840 verifyGoogleFormat( 3841 "virtual void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 3842 " const override;"); 3843 3844 // Even if the first parameter has to be wrapped. 3845 verifyFormat("void someLongFunction(\n" 3846 " int someLongParameter) const {}", 3847 getLLVMStyleWithColumns(46)); 3848 verifyFormat("void someLongFunction(\n" 3849 " int someLongParameter) const {}", 3850 Style); 3851 verifyFormat("void someLongFunction(\n" 3852 " int someLongParameter) override {}", 3853 Style); 3854 verifyFormat("void someLongFunction(\n" 3855 " int someLongParameter) OVERRIDE {}", 3856 Style); 3857 verifyFormat("void someLongFunction(\n" 3858 " int someLongParameter) final {}", 3859 Style); 3860 verifyFormat("void someLongFunction(\n" 3861 " int someLongParameter) FINAL {}", 3862 Style); 3863 verifyFormat("void someLongFunction(\n" 3864 " int parameter) const override {}", 3865 Style); 3866 3867 Style.BreakBeforeBraces = FormatStyle::BS_Allman; 3868 verifyFormat("void someLongFunction(\n" 3869 " int someLongParameter) const\n" 3870 "{\n" 3871 "}", 3872 Style); 3873 3874 // Unless these are unknown annotations. 3875 verifyFormat("void SomeFunction(aaaaaaaaaa aaaaaaaaaaaaaaa,\n" 3876 " aaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 3877 " LONG_AND_UGLY_ANNOTATION;"); 3878 3879 // Breaking before function-like trailing annotations is fine to keep them 3880 // close to their arguments. 3881 verifyFormat("void aaaaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 3882 " LOCKS_EXCLUDED(aaaaaaaaaaaaa);"); 3883 verifyFormat("void aaaaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) const\n" 3884 " LOCKS_EXCLUDED(aaaaaaaaaaaaa);"); 3885 verifyFormat("void aaaaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) const\n" 3886 " LOCKS_EXCLUDED(aaaaaaaaaaaaa) {}"); 3887 verifyGoogleFormat("void aaaaaaaaaaaaaa(aaaaaaaa aaa) override\n" 3888 " AAAAAAAAAAAAAAAAAAAAAAAA(aaaaaaaaaaaaaaa);"); 3889 verifyFormat("SomeFunction([](int i) LOCKS_EXCLUDED(a) {});"); 3890 3891 verifyFormat( 3892 "void aaaaaaaaaaaaaaaaaa()\n" 3893 " __attribute__((aaaaaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaa,\n" 3894 " aaaaaaaaaaaaaaaaaaaaaaaaa));"); 3895 verifyFormat("bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3896 " __attribute__((unused));"); 3897 verifyGoogleFormat( 3898 "bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3899 " GUARDED_BY(aaaaaaaaaaaa);"); 3900 verifyGoogleFormat( 3901 "bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3902 " GUARDED_BY(aaaaaaaaaaaa);"); 3903 verifyGoogleFormat( 3904 "bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa GUARDED_BY(aaaaaaaaaaaa) =\n" 3905 " aaaaaaaa::aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 3906 verifyGoogleFormat( 3907 "bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa GUARDED_BY(aaaaaaaaaaaa) =\n" 3908 " aaaaaaaaaaaaaaaaaaaaaaaaa;"); 3909 } 3910 3911 TEST_F(FormatTest, FunctionAnnotations) { 3912 verifyFormat("DEPRECATED(\"Use NewClass::NewFunction instead.\")\n" 3913 "int OldFunction(const string ¶meter) {}"); 3914 verifyFormat("DEPRECATED(\"Use NewClass::NewFunction instead.\")\n" 3915 "string OldFunction(const string ¶meter) {}"); 3916 verifyFormat("template <typename T>\n" 3917 "DEPRECATED(\"Use NewClass::NewFunction instead.\")\n" 3918 "string OldFunction(const string ¶meter) {}"); 3919 3920 // Not function annotations. 3921 verifyFormat("ASSERT(\"aaaaa\") << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3922 " << bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"); 3923 verifyFormat("TEST_F(ThisIsATestFixtureeeeeeeeeeeee,\n" 3924 " ThisIsATestWithAReallyReallyReallyReallyLongName) {}"); 3925 } 3926 3927 TEST_F(FormatTest, BreaksDesireably) { 3928 verifyFormat("if (aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaa) ||\n" 3929 " aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaa) ||\n" 3930 " aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaa)) {\n}"); 3931 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3932 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)) {\n" 3933 "}"); 3934 3935 verifyFormat( 3936 "aaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3937 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}"); 3938 3939 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3940 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3941 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa));"); 3942 3943 verifyFormat( 3944 "aaaaaaaa(aaaaaaaaaaaaa, aaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3945 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)),\n" 3946 " aaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3947 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)));"); 3948 3949 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 3950 " (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 3951 3952 verifyFormat( 3953 "void f() {\n" 3954 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa &&\n" 3955 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);\n" 3956 "}"); 3957 verifyFormat( 3958 "aaaaaa(new Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3959 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaa));"); 3960 verifyFormat( 3961 "aaaaaa(aaa, new Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3962 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaa));"); 3963 verifyFormat("aaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3964 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3965 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 3966 3967 // Indent consistently independent of call expression and unary operator. 3968 verifyFormat("aaaaaaaaaaa(bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(\n" 3969 " dddddddddddddddddddddddddddddd));"); 3970 verifyFormat("aaaaaaaaaaa(!bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(\n" 3971 " dddddddddddddddddddddddddddddd));"); 3972 verifyFormat("aaaaaaaaaaa(bbbbbbbbbbbbbbbbbbbbbbbbb.ccccccccccccccccc(\n" 3973 " dddddddddddddddddddddddddddddd));"); 3974 3975 // This test case breaks on an incorrect memoization, i.e. an optimization not 3976 // taking into account the StopAt value. 3977 verifyFormat( 3978 "return aaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaa ||\n" 3979 " aaaaaaaaaaa(aaaaaaaaa) || aaaaaaaaaaaaaaaaaaaaaaa ||\n" 3980 " aaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaa ||\n" 3981 " (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 3982 3983 verifyFormat("{\n {\n {\n" 3984 " Annotation.SpaceRequiredBefore =\n" 3985 " Line.Tokens[i - 1].Tok.isNot(tok::l_paren) &&\n" 3986 " Line.Tokens[i - 1].Tok.isNot(tok::l_square);\n" 3987 " }\n }\n}"); 3988 3989 // Break on an outer level if there was a break on an inner level. 3990 EXPECT_EQ("f(g(h(a, // comment\n" 3991 " b, c),\n" 3992 " d, e),\n" 3993 " x, y);", 3994 format("f(g(h(a, // comment\n" 3995 " b, c), d, e), x, y);")); 3996 3997 // Prefer breaking similar line breaks. 3998 verifyFormat( 3999 "const int kTrackingOptions = NSTrackingMouseMoved |\n" 4000 " NSTrackingMouseEnteredAndExited |\n" 4001 " NSTrackingActiveAlways;"); 4002 } 4003 4004 TEST_F(FormatTest, FormatsDeclarationsOnePerLine) { 4005 FormatStyle NoBinPacking = getGoogleStyle(); 4006 NoBinPacking.BinPackParameters = false; 4007 NoBinPacking.BinPackArguments = true; 4008 verifyFormat("void f() {\n" 4009 " f(aaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaa,\n" 4010 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);\n" 4011 "}", 4012 NoBinPacking); 4013 verifyFormat("void f(int aaaaaaaaaaaaaaaaaaaa,\n" 4014 " int aaaaaaaaaaaaaaaaaaaa,\n" 4015 " int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}", 4016 NoBinPacking); 4017 } 4018 4019 TEST_F(FormatTest, FormatsOneParameterPerLineIfNecessary) { 4020 FormatStyle NoBinPacking = getGoogleStyle(); 4021 NoBinPacking.BinPackParameters = false; 4022 NoBinPacking.BinPackArguments = false; 4023 verifyFormat("f(aaaaaaaaaaaaaaaaaaaa,\n" 4024 " aaaaaaaaaaaaaaaaaaaa,\n" 4025 " aaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaa);", 4026 NoBinPacking); 4027 verifyFormat("aaaaaaa(aaaaaaaaaaaaa,\n" 4028 " aaaaaaaaaaaaa,\n" 4029 " aaaaaaaaaaaaa(aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaa));", 4030 NoBinPacking); 4031 verifyFormat( 4032 "aaaaaaaa(aaaaaaaaaaaaa,\n" 4033 " aaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4034 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)),\n" 4035 " aaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4036 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)));", 4037 NoBinPacking); 4038 verifyFormat("aaaaaaaaaaaaaaa(aaaaaaaaa, aaaaaaaaa, aaaaaaaaaaaaaaaaaaaaa)\n" 4039 " .aaaaaaaaaaaaaaaaaa();", 4040 NoBinPacking); 4041 verifyFormat("void f() {\n" 4042 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4043 " aaaaaaaaaa, aaaaaaaaaa, aaaaaaaaaa, aaaaaaaaaaa);\n" 4044 "}", 4045 NoBinPacking); 4046 4047 verifyFormat( 4048 "aaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4049 " aaaaaaaaaaaa,\n" 4050 " aaaaaaaaaaaa);", 4051 NoBinPacking); 4052 verifyFormat( 4053 "somefunction(someotherFunction(ddddddddddddddddddddddddddddddddddd,\n" 4054 " ddddddddddddddddddddddddddddd),\n" 4055 " test);", 4056 NoBinPacking); 4057 4058 verifyFormat("std::vector<aaaaaaaaaaaaaaaaaaaaaaa,\n" 4059 " aaaaaaaaaaaaaaaaaaaaaaa,\n" 4060 " aaaaaaaaaaaaaaaaaaaaaaa> aaaaaaaaaaaaaaaaaa;", 4061 NoBinPacking); 4062 verifyFormat("a(\"a\"\n" 4063 " \"a\",\n" 4064 " a);"); 4065 4066 NoBinPacking.AllowAllParametersOfDeclarationOnNextLine = false; 4067 verifyFormat("void aaaaaaaaaa(aaaaaaaaa,\n" 4068 " aaaaaaaaa,\n" 4069 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4070 NoBinPacking); 4071 verifyFormat( 4072 "void f() {\n" 4073 " aaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaa, aaaaaaaaa, aaaaaaaaaaaaaaaaaaaaa)\n" 4074 " .aaaaaaa();\n" 4075 "}", 4076 NoBinPacking); 4077 verifyFormat( 4078 "template <class SomeType, class SomeOtherType>\n" 4079 "SomeType SomeFunction(SomeType Type, SomeOtherType OtherType) {}", 4080 NoBinPacking); 4081 } 4082 4083 TEST_F(FormatTest, AdaptiveOnePerLineFormatting) { 4084 FormatStyle Style = getLLVMStyleWithColumns(15); 4085 Style.ExperimentalAutoDetectBinPacking = true; 4086 EXPECT_EQ("aaa(aaaa,\n" 4087 " aaaa,\n" 4088 " aaaa);\n" 4089 "aaa(aaaa,\n" 4090 " aaaa,\n" 4091 " aaaa);", 4092 format("aaa(aaaa,\n" // one-per-line 4093 " aaaa,\n" 4094 " aaaa );\n" 4095 "aaa(aaaa, aaaa, aaaa);", // inconclusive 4096 Style)); 4097 EXPECT_EQ("aaa(aaaa, aaaa,\n" 4098 " aaaa);\n" 4099 "aaa(aaaa, aaaa,\n" 4100 " aaaa);", 4101 format("aaa(aaaa, aaaa,\n" // bin-packed 4102 " aaaa );\n" 4103 "aaa(aaaa, aaaa, aaaa);", // inconclusive 4104 Style)); 4105 } 4106 4107 TEST_F(FormatTest, FormatsBuilderPattern) { 4108 verifyFormat("return llvm::StringSwitch<Reference::Kind>(name)\n" 4109 " .StartsWith(\".eh_frame_hdr\", ORDER_EH_FRAMEHDR)\n" 4110 " .StartsWith(\".eh_frame\", ORDER_EH_FRAME)\n" 4111 " .StartsWith(\".init\", ORDER_INIT)\n" 4112 " .StartsWith(\".fini\", ORDER_FINI)\n" 4113 " .StartsWith(\".hash\", ORDER_HASH)\n" 4114 " .Default(ORDER_TEXT);\n"); 4115 4116 verifyFormat("return aaaaaaaaaaaaaaaaa->aaaaa().aaaaaaaaaaaaa().aaaaaa() <\n" 4117 " aaaaaaaaaaaaaaa->aaaaa().aaaaaaaaaaaaa().aaaaaa();"); 4118 verifyFormat( 4119 "aaaaaaa->aaaaaaa->aaaaaaaaaaaaaaaa(\n" 4120 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4121 " ->aaaaaaaa(aaaaaaaaaaaaaaa);"); 4122 verifyFormat( 4123 "aaaaaaaaaaaaaaaaaaa()->aaaaaa(bbbbb)->aaaaaaaaaaaaaaaaaaa( // break\n" 4124 " aaaaaaaaaaaaaa);"); 4125 verifyFormat( 4126 "aaaaaaaaaaaaaaaaaaaaaaa *aaaaaaaaa =\n" 4127 " aaaaaa->aaaaaaaaaaaa()\n" 4128 " ->aaaaaaaaaaaaaaaa(\n" 4129 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4130 " ->aaaaaaaaaaaaaaaaa();"); 4131 verifyGoogleFormat( 4132 "void f() {\n" 4133 " someo->Add((new util::filetools::Handler(dir))\n" 4134 " ->OnEvent1(NewPermanentCallback(\n" 4135 " this, &HandlerHolderClass::EventHandlerCBA))\n" 4136 " ->OnEvent2(NewPermanentCallback(\n" 4137 " this, &HandlerHolderClass::EventHandlerCBB))\n" 4138 " ->OnEvent3(NewPermanentCallback(\n" 4139 " this, &HandlerHolderClass::EventHandlerCBC))\n" 4140 " ->OnEvent5(NewPermanentCallback(\n" 4141 " this, &HandlerHolderClass::EventHandlerCBD))\n" 4142 " ->OnEvent6(NewPermanentCallback(\n" 4143 " this, &HandlerHolderClass::EventHandlerCBE)));\n" 4144 "}"); 4145 4146 verifyFormat( 4147 "aaaaaaaaaaa().aaaaaaaaaaa().aaaaaaaaaaa().aaaaaaaaaaa().aaaaaaaaaaa();"); 4148 verifyFormat("aaaaaaaaaaaaaaa()\n" 4149 " .aaaaaaaaaaaaaaa()\n" 4150 " .aaaaaaaaaaaaaaa()\n" 4151 " .aaaaaaaaaaaaaaa()\n" 4152 " .aaaaaaaaaaaaaaa();"); 4153 verifyFormat("aaaaaaaaaaaaaaa.aaaaaaaaaaaaaaa()\n" 4154 " .aaaaaaaaaaaaaaa()\n" 4155 " .aaaaaaaaaaaaaaa()\n" 4156 " .aaaaaaaaaaaaaaa();"); 4157 verifyFormat("aaaaaaaaaaaaaaa.aaaaaaaaaaaaaaa()\n" 4158 " .aaaaaaaaaaaaaaa.aaaaaaaaaaaaaaa()\n" 4159 " .aaaaaaaaaaaaaaa();"); 4160 verifyFormat("aaaaaaaaaaaaa->aaaaaaaaaaaaaaaaaaaaaaaa()\n" 4161 " ->aaaaaaaaaaaaaae(0)\n" 4162 " ->aaaaaaaaaaaaaaa();"); 4163 4164 // Don't linewrap after very short segments. 4165 verifyFormat("a().aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4166 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4167 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 4168 verifyFormat("aa().aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4169 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4170 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 4171 verifyFormat("aaa()\n" 4172 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4173 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4174 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 4175 4176 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaa.aaaaaaaaaaaaa()\n" 4177 " .aaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4178 " .has<bbbbbbbbbbbbbbbbbbbbb>();"); 4179 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaa.aaaaaaaaaaaaa()\n" 4180 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa<\n" 4181 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>();"); 4182 4183 // Prefer not to break after empty parentheses. 4184 verifyFormat("FirstToken->WhitespaceRange.getBegin().getLocWithOffset(\n" 4185 " First->LastNewlineOffset);"); 4186 } 4187 4188 TEST_F(FormatTest, BreaksAccordingToOperatorPrecedence) { 4189 verifyFormat( 4190 "if (aaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 4191 " bbbbbbbbbbbbbbbbbbbbbbbbb && ccccccccccccccccccccccccc) {\n}"); 4192 verifyFormat( 4193 "if (aaaaaaaaaaaaaaaaaaaaaaaaa or\n" 4194 " bbbbbbbbbbbbbbbbbbbbbbbbb and cccccccccccccccccccccccc) {\n}"); 4195 4196 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaa && bbbbbbbbbbbbbbbbbbbbbbbbb ||\n" 4197 " ccccccccccccccccccccccccc) {\n}"); 4198 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaa and bbbbbbbbbbbbbbbbbbbbbbbb or\n" 4199 " ccccccccccccccccccccccccc) {\n}"); 4200 4201 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaa || bbbbbbbbbbbbbbbbbbbbbbbbb ||\n" 4202 " ccccccccccccccccccccccccc) {\n}"); 4203 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaa or bbbbbbbbbbbbbbbbbbbbbbbbb or\n" 4204 " ccccccccccccccccccccccccc) {\n}"); 4205 4206 verifyFormat( 4207 "if ((aaaaaaaaaaaaaaaaaaaaaaaaa || bbbbbbbbbbbbbbbbbbbbbbbbb) &&\n" 4208 " ccccccccccccccccccccccccc) {\n}"); 4209 verifyFormat( 4210 "if ((aaaaaaaaaaaaaaaaaaaaaaaaa or bbbbbbbbbbbbbbbbbbbbbbbbb) and\n" 4211 " ccccccccccccccccccccccccc) {\n}"); 4212 4213 verifyFormat("return aaaa & AAAAAAAAAAAAAAAAAAAAAAAAAAAAA ||\n" 4214 " bbbb & BBBBBBBBBBBBBBBBBBBBBBBBBBBBB ||\n" 4215 " cccc & CCCCCCCCCCCCCCCCCCCCCCCCCC ||\n" 4216 " dddd & DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD;"); 4217 verifyFormat("return aaaa & AAAAAAAAAAAAAAAAAAAAAAAAAAAAA or\n" 4218 " bbbb & BBBBBBBBBBBBBBBBBBBBBBBBBBBBB or\n" 4219 " cccc & CCCCCCCCCCCCCCCCCCCCCCCCCC or\n" 4220 " dddd & DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD;"); 4221 4222 verifyFormat("if ((aaaaaaaaaa != aaaaaaaaaaaaaaa ||\n" 4223 " aaaaaaaaaaaaaaaaaaaaaaaa() >= aaaaaaaaaaaaaaaaaaaa) &&\n" 4224 " aaaaaaaaaaaaaaa != aa) {\n}"); 4225 verifyFormat("if ((aaaaaaaaaa != aaaaaaaaaaaaaaa or\n" 4226 " aaaaaaaaaaaaaaaaaaaaaaaa() >= aaaaaaaaaaaaaaaaaaaa) and\n" 4227 " aaaaaaaaaaaaaaa != aa) {\n}"); 4228 } 4229 4230 TEST_F(FormatTest, BreaksAfterAssignments) { 4231 verifyFormat( 4232 "unsigned Cost =\n" 4233 " TTI.getMemoryOpCost(I->getOpcode(), VectorTy, SI->getAlignment(),\n" 4234 " SI->getPointerAddressSpaceee());\n"); 4235 verifyFormat( 4236 "CharSourceRange LineRange = CharSourceRange::getTokenRange(\n" 4237 " Line.Tokens.front().Tok.getLo(), Line.Tokens.back().Tok.getLoc());"); 4238 4239 verifyFormat( 4240 "aaaaaaaaaaaaaaaaaaaaaaaaaa aaaa = aaaaaaaaaaaaaa(0).aaaa().aaaaaaaaa(\n" 4241 " aaaaaaaaaaaaaaaaaaa::aaaaaaaaaaaaaaaaaaaaa);"); 4242 verifyFormat("unsigned OriginalStartColumn =\n" 4243 " SourceMgr.getSpellingColumnNumber(\n" 4244 " Current.FormatTok.getStartOfNonWhitespace()) -\n" 4245 " 1;"); 4246 } 4247 4248 TEST_F(FormatTest, AlignsAfterAssignments) { 4249 verifyFormat( 4250 "int Result = aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4251 " aaaaaaaaaaaaaaaaaaaaaaaaa;"); 4252 verifyFormat( 4253 "Result += aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4254 " aaaaaaaaaaaaaaaaaaaaaaaaa;"); 4255 verifyFormat( 4256 "Result >>= aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4257 " aaaaaaaaaaaaaaaaaaaaaaaaa;"); 4258 verifyFormat( 4259 "int Result = (aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4260 " aaaaaaaaaaaaaaaaaaaaaaaaa);"); 4261 verifyFormat( 4262 "double LooooooooooooooooooooooooongResult = aaaaaaaaaaaaaaaaaaaaaaaa +\n" 4263 " aaaaaaaaaaaaaaaaaaaaaaaa +\n" 4264 " aaaaaaaaaaaaaaaaaaaaaaaa;"); 4265 } 4266 4267 TEST_F(FormatTest, AlignsAfterReturn) { 4268 verifyFormat( 4269 "return aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4270 " aaaaaaaaaaaaaaaaaaaaaaaaa;"); 4271 verifyFormat( 4272 "return (aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4273 " aaaaaaaaaaaaaaaaaaaaaaaaa);"); 4274 verifyFormat( 4275 "return aaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa >=\n" 4276 " aaaaaaaaaaaaaaaaaaaaaa();"); 4277 verifyFormat( 4278 "return (aaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa >=\n" 4279 " aaaaaaaaaaaaaaaaaaaaaa());"); 4280 verifyFormat("return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4281 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4282 verifyFormat("return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4283 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) &&\n" 4284 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4285 verifyFormat("return\n" 4286 " // true if code is one of a or b.\n" 4287 " code == a || code == b;"); 4288 } 4289 4290 TEST_F(FormatTest, AlignsAfterOpenBracket) { 4291 verifyFormat( 4292 "void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaa aaaaaaaa,\n" 4293 " aaaaaaaaa aaaaaaa) {}"); 4294 verifyFormat( 4295 "SomeLongVariableName->someVeryLongFunctionName(aaaaaaaaaaa aaaaaaaaa,\n" 4296 " aaaaaaaaaaa aaaaaaaaa);"); 4297 verifyFormat( 4298 "SomeLongVariableName->someFunction(foooooooo(aaaaaaaaaaaaaaa,\n" 4299 " aaaaaaaaaaaaaaaaaaaaa));"); 4300 FormatStyle Style = getLLVMStyle(); 4301 Style.AlignAfterOpenBracket = false; 4302 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4303 " aaaaaaaaaaa aaaaaaaa, aaaaaaaaa aaaaaaa) {}", 4304 Style); 4305 verifyFormat("SomeLongVariableName->someVeryLongFunctionName(\n" 4306 " aaaaaaaaaaa aaaaaaaaa, aaaaaaaaaaa aaaaaaaaa);", 4307 Style); 4308 verifyFormat("SomeLongVariableName->someFunction(\n" 4309 " foooooooo(aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaa));", 4310 Style); 4311 verifyFormat( 4312 "void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaa aaaaaaaa,\n" 4313 " aaaaaaaaa aaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}", 4314 Style); 4315 verifyFormat( 4316 "SomeLongVariableName->someVeryLongFunctionName(aaaaaaaaaaa aaaaaaaaa,\n" 4317 " aaaaaaaaaaa aaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4318 Style); 4319 verifyFormat( 4320 "SomeLongVariableName->someFunction(foooooooo(aaaaaaaaaaaaaaa,\n" 4321 " aaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa));", 4322 Style); 4323 } 4324 4325 TEST_F(FormatTest, ParenthesesAndOperandAlignment) { 4326 FormatStyle Style = getLLVMStyleWithColumns(40); 4327 verifyFormat("int a = f(aaaaaaaaaaaaaaaaaaaaaa &&\n" 4328 " bbbbbbbbbbbbbbbbbbbbbb);", 4329 Style); 4330 Style.AlignAfterOpenBracket = true; 4331 Style.AlignOperands = false; 4332 verifyFormat("int a = f(aaaaaaaaaaaaaaaaaaaaaa &&\n" 4333 " bbbbbbbbbbbbbbbbbbbbbb);", 4334 Style); 4335 Style.AlignAfterOpenBracket = false; 4336 Style.AlignOperands = true; 4337 verifyFormat("int a = f(aaaaaaaaaaaaaaaaaaaaaa &&\n" 4338 " bbbbbbbbbbbbbbbbbbbbbb);", 4339 Style); 4340 Style.AlignAfterOpenBracket = false; 4341 Style.AlignOperands = false; 4342 verifyFormat("int a = f(aaaaaaaaaaaaaaaaaaaaaa &&\n" 4343 " bbbbbbbbbbbbbbbbbbbbbb);", 4344 Style); 4345 } 4346 4347 TEST_F(FormatTest, BreaksConditionalExpressions) { 4348 verifyFormat( 4349 "aaaa(aaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4350 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4351 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4352 verifyFormat( 4353 "aaaa(aaaaaaaaaaaaaaaaaaaa, aaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4354 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4355 verifyFormat( 4356 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaa ? aaaa(aaaaaa)\n" 4357 " : aaaaaaaaaaaaa);"); 4358 verifyFormat( 4359 "aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4360 " aaaaaaaaaaaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4361 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4362 " aaaaaaaaaaaaa);"); 4363 verifyFormat( 4364 "aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4365 " aaaaaaaaaaaaaaaa ?: aaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4366 " aaaaaaaaaaaaa);"); 4367 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4368 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4369 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4370 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4371 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4372 verifyFormat("aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4373 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4374 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4375 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4376 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4377 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 4378 " aaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4379 verifyFormat("aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4380 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4381 " ?: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4382 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 4383 " aaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4384 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4385 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4386 " : aaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4387 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaa =\n" 4388 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4389 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4390 " : aaaaaaaaaaaaaaaa;"); 4391 verifyFormat( 4392 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4393 " ? aaaaaaaaaaaaaaa\n" 4394 " : aaaaaaaaaaaaaaa;"); 4395 verifyFormat("f(aaaaaaaaaaaaaaaa == // force break\n" 4396 " aaaaaaaaa\n" 4397 " ? b\n" 4398 " : c);"); 4399 verifyFormat("return aaaa == bbbb\n" 4400 " // comment\n" 4401 " ? aaaa\n" 4402 " : bbbb;"); 4403 verifyFormat("unsigned Indent =\n" 4404 " format(TheLine.First, IndentForLevel[TheLine.Level] >= 0\n" 4405 " ? IndentForLevel[TheLine.Level]\n" 4406 " : TheLine * 2,\n" 4407 " TheLine.InPPDirective, PreviousEndOfLineColumn);", 4408 getLLVMStyleWithColumns(70)); 4409 verifyFormat("bool aaaaaa = aaaaaaaaaaaaa //\n" 4410 " ? aaaaaaaaaaaaaaa\n" 4411 " : bbbbbbbbbbbbbbb //\n" 4412 " ? ccccccccccccccc\n" 4413 " : ddddddddddddddd;"); 4414 verifyFormat("bool aaaaaa = aaaaaaaaaaaaa //\n" 4415 " ? aaaaaaaaaaaaaaa\n" 4416 " : (bbbbbbbbbbbbbbb //\n" 4417 " ? ccccccccccccccc\n" 4418 " : ddddddddddddddd);"); 4419 verifyFormat( 4420 "int aaaaaaaaaaaaaaaaaaaaaaaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4421 " ? aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4422 " aaaaaaaaaaaaaaaaaaaaa +\n" 4423 " aaaaaaaaaaaaaaaaaaaaa\n" 4424 " : aaaaaaaaaa;"); 4425 verifyFormat( 4426 "aaaaaa = aaaaaaaaaaaa\n" 4427 " ? aaaaaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4428 " : aaaaaaaaaaaaaaaaaaaaaa\n" 4429 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4430 4431 FormatStyle NoBinPacking = getLLVMStyle(); 4432 NoBinPacking.BinPackArguments = false; 4433 verifyFormat( 4434 "void f() {\n" 4435 " g(aaa,\n" 4436 " aaaaaaaaaa == aaaaaaaaaa ? aaaa : aaaaa,\n" 4437 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4438 " ? aaaaaaaaaaaaaaa\n" 4439 " : aaaaaaaaaaaaaaa);\n" 4440 "}", 4441 NoBinPacking); 4442 verifyFormat( 4443 "void f() {\n" 4444 " g(aaa,\n" 4445 " aaaaaaaaaa == aaaaaaaaaa ? aaaa : aaaaa,\n" 4446 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4447 " ?: aaaaaaaaaaaaaaa);\n" 4448 "}", 4449 NoBinPacking); 4450 4451 verifyFormat("SomeFunction(aaaaaaaaaaaaaaaaa,\n" 4452 " // comment.\n" 4453 " ccccccccccccccccccccccccccccccccccccccc\n" 4454 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4455 " : bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb);"); 4456 4457 // Assignments in conditional expressions. Apparently not uncommon :-(. 4458 verifyFormat("return a != b\n" 4459 " // comment\n" 4460 " ? a = b\n" 4461 " : a = b;"); 4462 verifyFormat("return a != b\n" 4463 " // comment\n" 4464 " ? a = a != b\n" 4465 " // comment\n" 4466 " ? a = b\n" 4467 " : a\n" 4468 " : a;\n"); 4469 verifyFormat("return a != b\n" 4470 " // comment\n" 4471 " ? a\n" 4472 " : a = a != b\n" 4473 " // comment\n" 4474 " ? a = b\n" 4475 " : a;"); 4476 } 4477 4478 TEST_F(FormatTest, BreaksConditionalExpressionsAfterOperator) { 4479 FormatStyle Style = getLLVMStyle(); 4480 Style.BreakBeforeTernaryOperators = false; 4481 Style.ColumnLimit = 70; 4482 verifyFormat( 4483 "aaaa(aaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 4484 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 4485 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4486 Style); 4487 verifyFormat( 4488 "aaaa(aaaaaaaaaaaaaaaaaaaa, aaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 4489 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4490 Style); 4491 verifyFormat( 4492 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaa ? aaaa(aaaaaa) :\n" 4493 " aaaaaaaaaaaaa);", 4494 Style); 4495 verifyFormat( 4496 "aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4497 " aaaaaaaaaaaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 4498 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4499 " aaaaaaaaaaaaa);", 4500 Style); 4501 verifyFormat( 4502 "aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4503 " aaaaaaaaaaaaaaaa ?: aaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4504 " aaaaaaaaaaaaa);", 4505 Style); 4506 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 4507 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4508 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) :\n" 4509 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4510 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4511 Style); 4512 verifyFormat("aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4513 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 4514 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4515 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) :\n" 4516 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4517 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 4518 " aaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4519 Style); 4520 verifyFormat("aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4521 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?:\n" 4522 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4523 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 4524 " aaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4525 Style); 4526 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 4527 " aaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 4528 " aaaaaaaaaaaaaaaaaaaaaaaaaaa;", 4529 Style); 4530 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaa =\n" 4531 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 4532 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 4533 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;", 4534 Style); 4535 verifyFormat( 4536 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 4537 " aaaaaaaaaaaaaaa :\n" 4538 " aaaaaaaaaaaaaaa;", 4539 Style); 4540 verifyFormat("f(aaaaaaaaaaaaaaaa == // force break\n" 4541 " aaaaaaaaa ?\n" 4542 " b :\n" 4543 " c);", 4544 Style); 4545 verifyFormat( 4546 "unsigned Indent =\n" 4547 " format(TheLine.First, IndentForLevel[TheLine.Level] >= 0 ?\n" 4548 " IndentForLevel[TheLine.Level] :\n" 4549 " TheLine * 2,\n" 4550 " TheLine.InPPDirective, PreviousEndOfLineColumn);", 4551 Style); 4552 verifyFormat("bool aaaaaa = aaaaaaaaaaaaa ? //\n" 4553 " aaaaaaaaaaaaaaa :\n" 4554 " bbbbbbbbbbbbbbb ? //\n" 4555 " ccccccccccccccc :\n" 4556 " ddddddddddddddd;", 4557 Style); 4558 verifyFormat("bool aaaaaa = aaaaaaaaaaaaa ? //\n" 4559 " aaaaaaaaaaaaaaa :\n" 4560 " (bbbbbbbbbbbbbbb ? //\n" 4561 " ccccccccccccccc :\n" 4562 " ddddddddddddddd);", 4563 Style); 4564 } 4565 4566 TEST_F(FormatTest, DeclarationsOfMultipleVariables) { 4567 verifyFormat("bool aaaaaaaaaaaaaaaaa = aaaaaa->aaaaaaaaaaaaaaaaa(),\n" 4568 " aaaaaaaaaaa = aaaaaa->aaaaaaaaaaa();"); 4569 verifyFormat("bool a = true, b = false;"); 4570 4571 verifyFormat("bool aaaaaaaaaaaaaaaaaaaaaaaaa =\n" 4572 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaa),\n" 4573 " bbbbbbbbbbbbbbbbbbbbbbbbb =\n" 4574 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(bbbbbbbbbbbbbbbb);"); 4575 verifyFormat( 4576 "bool aaaaaaaaaaaaaaaaaaaaa =\n" 4577 " bbbbbbbbbbbbbbbbbbbbbbbbbbbb && cccccccccccccccccccccccccccc,\n" 4578 " d = e && f;"); 4579 verifyFormat("aaaaaaaaa a = aaaaaaaaaaaaaaaaaaaa, b = bbbbbbbbbbbbbbbbbbbb,\n" 4580 " c = cccccccccccccccccccc, d = dddddddddddddddddddd;"); 4581 verifyFormat("aaaaaaaaa *a = aaaaaaaaaaaaaaaaaaa, *b = bbbbbbbbbbbbbbbbbbb,\n" 4582 " *c = ccccccccccccccccccc, *d = ddddddddddddddddddd;"); 4583 verifyFormat("aaaaaaaaa ***a = aaaaaaaaaaaaaaaaaaa, ***b = bbbbbbbbbbbbbbb,\n" 4584 " ***c = ccccccccccccccccccc, ***d = ddddddddddddddd;"); 4585 4586 FormatStyle Style = getGoogleStyle(); 4587 Style.PointerAlignment = FormatStyle::PAS_Left; 4588 Style.DerivePointerAlignment = false; 4589 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4590 " *aaaaaaaaaaaaaaaaaaaaaaaaaaaaa = aaaaaaaaaaaaaaaaaaa,\n" 4591 " *b = bbbbbbbbbbbbbbbbbbb;", 4592 Style); 4593 verifyFormat("aaaaaaaaa *a = aaaaaaaaaaaaaaaaaaa, *b = bbbbbbbbbbbbbbbbbbb,\n" 4594 " *b = bbbbbbbbbbbbbbbbbbb, *d = ddddddddddddddddddd;", 4595 Style); 4596 } 4597 4598 TEST_F(FormatTest, ConditionalExpressionsInBrackets) { 4599 verifyFormat("arr[foo ? bar : baz];"); 4600 verifyFormat("f()[foo ? bar : baz];"); 4601 verifyFormat("(a + b)[foo ? bar : baz];"); 4602 verifyFormat("arr[foo ? (4 > 5 ? 4 : 5) : 5 < 5 ? 5 : 7];"); 4603 } 4604 4605 TEST_F(FormatTest, AlignsStringLiterals) { 4606 verifyFormat("loooooooooooooooooooooooooongFunction(\"short literal \"\n" 4607 " \"short literal\");"); 4608 verifyFormat( 4609 "looooooooooooooooooooooooongFunction(\n" 4610 " \"short literal\"\n" 4611 " \"looooooooooooooooooooooooooooooooooooooooooooooooong literal\");"); 4612 verifyFormat("someFunction(\"Always break between multi-line\"\n" 4613 " \" string literals\",\n" 4614 " and, other, parameters);"); 4615 EXPECT_EQ("fun + \"1243\" /* comment */\n" 4616 " \"5678\";", 4617 format("fun + \"1243\" /* comment */\n" 4618 " \"5678\";", 4619 getLLVMStyleWithColumns(28))); 4620 EXPECT_EQ( 4621 "aaaaaa = \"aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaa \"\n" 4622 " \"aaaaaaaaaaaaaaaaaaaaa\"\n" 4623 " \"aaaaaaaaaaaaaaaa\";", 4624 format("aaaaaa =" 4625 "\"aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaa " 4626 "aaaaaaaaaaaaaaaaaaaaa\" " 4627 "\"aaaaaaaaaaaaaaaa\";")); 4628 verifyFormat("a = a + \"a\"\n" 4629 " \"a\"\n" 4630 " \"a\";"); 4631 verifyFormat("f(\"a\", \"b\"\n" 4632 " \"c\");"); 4633 4634 verifyFormat( 4635 "#define LL_FORMAT \"ll\"\n" 4636 "printf(\"aaaaa: %d, bbbbbb: %\" LL_FORMAT \"d, cccccccc: %\" LL_FORMAT\n" 4637 " \"d, ddddddddd: %\" LL_FORMAT \"d\");"); 4638 4639 verifyFormat("#define A(X) \\\n" 4640 " \"aaaaa\" #X \"bbbbbb\" \\\n" 4641 " \"ccccc\"", 4642 getLLVMStyleWithColumns(23)); 4643 verifyFormat("#define A \"def\"\n" 4644 "f(\"abc\" A \"ghi\"\n" 4645 " \"jkl\");"); 4646 4647 verifyFormat("f(L\"a\"\n" 4648 " L\"b\");"); 4649 verifyFormat("#define A(X) \\\n" 4650 " L\"aaaaa\" #X L\"bbbbbb\" \\\n" 4651 " L\"ccccc\"", 4652 getLLVMStyleWithColumns(25)); 4653 4654 verifyFormat("f(@\"a\"\n" 4655 " @\"b\");"); 4656 verifyFormat("NSString s = @\"a\"\n" 4657 " @\"b\"\n" 4658 " @\"c\";"); 4659 verifyFormat("NSString s = @\"a\"\n" 4660 " \"b\"\n" 4661 " \"c\";"); 4662 } 4663 4664 TEST_F(FormatTest, DefinitionReturnTypeBreakingStyle) { 4665 FormatStyle Style = getLLVMStyle(); 4666 Style.AlwaysBreakAfterDefinitionReturnType = FormatStyle::DRTBS_TopLevel; 4667 verifyFormat("class C {\n" 4668 " int f() { return 1; }\n" 4669 "};\n" 4670 "int\n" 4671 "f() {\n" 4672 " return 1;\n" 4673 "}", 4674 Style); 4675 Style.AlwaysBreakAfterDefinitionReturnType = FormatStyle::DRTBS_All; 4676 verifyFormat("class C {\n" 4677 " int\n" 4678 " f() {\n" 4679 " return 1;\n" 4680 " }\n" 4681 "};\n" 4682 "int\n" 4683 "f() {\n" 4684 " return 1;\n" 4685 "}", 4686 Style); 4687 verifyFormat("const char *\n" 4688 "f(void) {\n" // Break here. 4689 " return \"\";\n" 4690 "}\n" 4691 "const char *bar(void);\n", // No break here. 4692 Style); 4693 verifyFormat("template <class T>\n" 4694 "T *\n" 4695 "f(T &c) {\n" // Break here. 4696 " return NULL;\n" 4697 "}\n" 4698 "template <class T> T *f(T &c);\n", // No break here. 4699 Style); 4700 verifyFormat("class C {\n" 4701 " int\n" 4702 " operator+() {\n" 4703 " return 1;\n" 4704 " }\n" 4705 " int\n" 4706 " operator()() {\n" 4707 " return 1;\n" 4708 " }\n" 4709 "};\n", 4710 Style); 4711 verifyFormat("void\n" 4712 "A::operator()() {}\n" 4713 "void\n" 4714 "A::operator>>() {}\n" 4715 "void\n" 4716 "A::operator+() {}\n", 4717 Style); 4718 verifyFormat("void *operator new(std::size_t s);", // No break here. 4719 Style); 4720 verifyFormat("void *\n" 4721 "operator new(std::size_t s) {}", 4722 Style); 4723 verifyFormat("void *\n" 4724 "operator delete[](void *ptr) {}", 4725 Style); 4726 Style.BreakBeforeBraces = FormatStyle::BS_Stroustrup; 4727 verifyFormat("const char *\n" 4728 "f(void)\n" // Break here. 4729 "{\n" 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" // Problem here: no line break 4736 "f(T &c)\n" // Break here. 4737 "{\n" 4738 " return NULL;\n" 4739 "}\n" 4740 "template <class T> T *f(T &c);\n", // No break here. 4741 Style); 4742 } 4743 4744 TEST_F(FormatTest, AlwaysBreakBeforeMultilineStrings) { 4745 FormatStyle NoBreak = getLLVMStyle(); 4746 NoBreak.AlwaysBreakBeforeMultilineStrings = false; 4747 FormatStyle Break = getLLVMStyle(); 4748 Break.AlwaysBreakBeforeMultilineStrings = true; 4749 verifyFormat("aaaa = \"bbbb\"\n" 4750 " \"cccc\";", 4751 NoBreak); 4752 verifyFormat("aaaa =\n" 4753 " \"bbbb\"\n" 4754 " \"cccc\";", 4755 Break); 4756 verifyFormat("aaaa(\"bbbb\"\n" 4757 " \"cccc\");", 4758 NoBreak); 4759 verifyFormat("aaaa(\n" 4760 " \"bbbb\"\n" 4761 " \"cccc\");", 4762 Break); 4763 verifyFormat("aaaa(qqq, \"bbbb\"\n" 4764 " \"cccc\");", 4765 NoBreak); 4766 verifyFormat("aaaa(qqq,\n" 4767 " \"bbbb\"\n" 4768 " \"cccc\");", 4769 Break); 4770 verifyFormat("aaaa(qqq,\n" 4771 " L\"bbbb\"\n" 4772 " L\"cccc\");", 4773 Break); 4774 verifyFormat("aaaaa(aaaaaa, aaaaaaa(\"aaaa\"\n" 4775 " \"bbbb\"));", 4776 Break); 4777 verifyFormat("string s = someFunction(\n" 4778 " \"abc\"\n" 4779 " \"abc\");", 4780 Break); 4781 4782 // As we break before unary operators, breaking right after them is bad. 4783 verifyFormat("string foo = abc ? \"x\"\n" 4784 " \"blah blah blah blah blah blah\"\n" 4785 " : \"y\";", 4786 Break); 4787 4788 // Don't break if there is no column gain. 4789 verifyFormat("f(\"aaaa\"\n" 4790 " \"bbbb\");", 4791 Break); 4792 4793 // Treat literals with escaped newlines like multi-line string literals. 4794 EXPECT_EQ("x = \"a\\\n" 4795 "b\\\n" 4796 "c\";", 4797 format("x = \"a\\\n" 4798 "b\\\n" 4799 "c\";", 4800 NoBreak)); 4801 EXPECT_EQ("xxxx =\n" 4802 " \"a\\\n" 4803 "b\\\n" 4804 "c\";", 4805 format("xxxx = \"a\\\n" 4806 "b\\\n" 4807 "c\";", 4808 Break)); 4809 4810 // Exempt ObjC strings for now. 4811 EXPECT_EQ("NSString *const kString = @\"aaaa\"\n" 4812 " @\"bbbb\";", 4813 format("NSString *const kString = @\"aaaa\"\n" 4814 "@\"bbbb\";", 4815 Break)); 4816 4817 Break.ColumnLimit = 0; 4818 verifyFormat("const char *hello = \"hello llvm\";", Break); 4819 } 4820 4821 TEST_F(FormatTest, AlignsPipes) { 4822 verifyFormat( 4823 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4824 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4825 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4826 verifyFormat( 4827 "aaaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaa\n" 4828 " << aaaaaaaaaaaaaaaaaaaa;"); 4829 verifyFormat( 4830 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4831 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4832 verifyFormat( 4833 "llvm::outs() << \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"\n" 4834 " \"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\"\n" 4835 " << \"ccccccccccccccccccccccccccccccccccccccccccccccccc\";"); 4836 verifyFormat( 4837 "aaaaaaaa << (aaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4838 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4839 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4840 verifyFormat("llvm::errs() << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4841 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4842 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4843 " << bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;"); 4844 verifyFormat("llvm::errs() << \"aaaaaaaaaaaaaaaaaaaaaaa: \"\n" 4845 " << aaaaaaaaaaaaaaaaa(aaaaaaaa, aaaaaaaaaaa);"); 4846 verifyFormat( 4847 "llvm::errs() << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4848 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4849 4850 verifyFormat("return out << \"somepacket = {\\n\"\n" 4851 " << \" aaaaaa = \" << pkt.aaaaaa << \"\\n\"\n" 4852 " << \" bbbb = \" << pkt.bbbb << \"\\n\"\n" 4853 " << \" cccccc = \" << pkt.cccccc << \"\\n\"\n" 4854 " << \" ddd = [\" << pkt.ddd << \"]\\n\"\n" 4855 " << \"}\";"); 4856 4857 verifyFormat("llvm::outs() << \"aaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaa\n" 4858 " << \"aaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaa\n" 4859 " << \"aaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaa;"); 4860 verifyFormat( 4861 "llvm::outs() << \"aaaaaaaaaaaaaaaaa = \" << aaaaaaaaaaaaaaaaa\n" 4862 " << \"bbbbbbbbbbbbbbbbb = \" << bbbbbbbbbbbbbbbbb\n" 4863 " << \"ccccccccccccccccc = \" << ccccccccccccccccc\n" 4864 " << \"ddddddddddddddddd = \" << ddddddddddddddddd\n" 4865 " << \"eeeeeeeeeeeeeeeee = \" << eeeeeeeeeeeeeeeee;"); 4866 verifyFormat("llvm::outs() << aaaaaaaaaaaaaaaaaaaaaaaa << \"=\"\n" 4867 " << bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;"); 4868 verifyFormat( 4869 "void f() {\n" 4870 " llvm::outs() << \"aaaaaaaaaaaaaaaaaaaa: \"\n" 4871 " << aaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaa);\n" 4872 "}"); 4873 verifyFormat("llvm::outs() << \"aaaaaaaaaaaaaaaa: \"\n" 4874 " << aaaaaaaa.aaaaaaaaaaaa(aaa)->aaaaaaaaaaaaaa();"); 4875 verifyFormat("llvm::errs() << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4876 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4877 " aaaaaaaaaaaaaaaaaaaaa)\n" 4878 " << aaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4879 verifyFormat("LOG_IF(aaa == //\n" 4880 " bbb)\n" 4881 " << a << b;"); 4882 4883 // Breaking before the first "<<" is generally not desirable. 4884 verifyFormat( 4885 "llvm::errs()\n" 4886 " << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4887 " << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4888 " << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4889 " << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa;", 4890 getLLVMStyleWithColumns(70)); 4891 verifyFormat("llvm::errs() << \"aaaaaaaaaaaaaaaaaaa: \"\n" 4892 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4893 " << \"aaaaaaaaaaaaaaaaaaa: \"\n" 4894 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4895 " << \"aaaaaaaaaaaaaaaaaaa: \"\n" 4896 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaa;", 4897 getLLVMStyleWithColumns(70)); 4898 4899 // But sometimes, breaking before the first "<<" is desirable. 4900 verifyFormat("Diag(aaaaaaaaaaaaaaaaaaaa, aaaaaaaa)\n" 4901 " << aaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaa);"); 4902 verifyFormat("Diag(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbb)\n" 4903 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4904 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4905 verifyFormat("SemaRef.Diag(Loc, diag::note_for_range_begin_end)\n" 4906 " << BEF << IsTemplate << Description << E->getType();"); 4907 4908 verifyFormat( 4909 "llvm::errs() << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4910 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 4911 4912 // Incomplete string literal. 4913 EXPECT_EQ("llvm::errs() << \"\n" 4914 " << a;", 4915 format("llvm::errs() << \"\n<<a;")); 4916 4917 verifyFormat("void f() {\n" 4918 " CHECK_EQ(aaaa, (*bbbbbbbbb)->cccccc)\n" 4919 " << \"qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq\";\n" 4920 "}"); 4921 4922 // Handle 'endl'. 4923 verifyFormat("llvm::errs() << aaaaaaaaaaaaaaaaaaaaaa << endl\n" 4924 " << bbbbbbbbbbbbbbbbbbbbbb << endl;"); 4925 verifyFormat("llvm::errs() << endl << bbbbbbbbbbbbbbbbbbbbbb << endl;"); 4926 } 4927 4928 TEST_F(FormatTest, UnderstandsEquals) { 4929 verifyFormat( 4930 "aaaaaaaaaaaaaaaaa =\n" 4931 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4932 verifyFormat( 4933 "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 4934 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}"); 4935 verifyFormat( 4936 "if (a) {\n" 4937 " f();\n" 4938 "} else if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 4939 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n" 4940 "}"); 4941 4942 verifyFormat("if (int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 4943 " 100000000 + 10000000) {\n}"); 4944 } 4945 4946 TEST_F(FormatTest, WrapsAtFunctionCallsIfNecessary) { 4947 verifyFormat("LoooooooooooooooooooooooooooooooooooooongObject\n" 4948 " .looooooooooooooooooooooooooooooooooooooongFunction();"); 4949 4950 verifyFormat("LoooooooooooooooooooooooooooooooooooooongObject\n" 4951 " ->looooooooooooooooooooooooooooooooooooooongFunction();"); 4952 4953 verifyFormat( 4954 "LooooooooooooooooooooooooooooooooongObject->shortFunction(Parameter1,\n" 4955 " Parameter2);"); 4956 4957 verifyFormat( 4958 "ShortObject->shortFunction(\n" 4959 " LooooooooooooooooooooooooooooooooooooooooooooooongParameter1,\n" 4960 " LooooooooooooooooooooooooooooooooooooooooooooooongParameter2);"); 4961 4962 verifyFormat("loooooooooooooongFunction(\n" 4963 " LoooooooooooooongObject->looooooooooooooooongFunction());"); 4964 4965 verifyFormat( 4966 "function(LoooooooooooooooooooooooooooooooooooongObject\n" 4967 " ->loooooooooooooooooooooooooooooooooooooooongFunction());"); 4968 4969 verifyFormat("EXPECT_CALL(SomeObject, SomeFunction(Parameter))\n" 4970 " .WillRepeatedly(Return(SomeValue));"); 4971 verifyFormat("void f() {\n" 4972 " EXPECT_CALL(SomeObject, SomeFunction(Parameter))\n" 4973 " .Times(2)\n" 4974 " .WillRepeatedly(Return(SomeValue));\n" 4975 "}"); 4976 verifyFormat("SomeMap[std::pair(aaaaaaaaaaaa, bbbbbbbbbbbbbbb)].insert(\n" 4977 " ccccccccccccccccccccccc);"); 4978 verifyFormat("aaaaa(aaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4979 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4980 " .aaaaa(aaaaa),\n" 4981 " aaaaaaaaaaaaaaaaaaaaa);"); 4982 verifyFormat("void f() {\n" 4983 " aaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4984 " aaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa)->aaaaaaaaa());\n" 4985 "}"); 4986 verifyFormat("aaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4987 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4988 " .aaaaaaaaaaaaaaa(aa(aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4989 " aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4990 " aaaaaaaaaaaaaaaaaaaaaaaaaaa));"); 4991 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4992 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4993 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4994 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()) {\n" 4995 "}"); 4996 4997 // Here, it is not necessary to wrap at "." or "->". 4998 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaa) ||\n" 4999 " aaaa.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}"); 5000 verifyFormat( 5001 "aaaaaaaaaaa->aaaaaaaaa(\n" 5002 " aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5003 " aaaaaaaaaaaaaaaaaa->aaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa));\n"); 5004 5005 verifyFormat( 5006 "aaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5007 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa().aaaaaaaaaaaaaaaaa());"); 5008 verifyFormat("a->aaaaaa()->aaaaaaaaaaa(aaaaaaaa()->aaaaaa()->aaaaa() *\n" 5009 " aaaaaaaaa()->aaaaaa()->aaaaa());"); 5010 verifyFormat("a->aaaaaa()->aaaaaaaaaaa(aaaaaaaa()->aaaaaa()->aaaaa() ||\n" 5011 " aaaaaaaaa()->aaaaaa()->aaaaa());"); 5012 5013 verifyFormat("aaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5014 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 5015 " .a();"); 5016 5017 FormatStyle NoBinPacking = getLLVMStyle(); 5018 NoBinPacking.BinPackParameters = false; 5019 verifyFormat("aaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaa)\n" 5020 " .aaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaa)\n" 5021 " .aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaa,\n" 5022 " aaaaaaaaaaaaaaaaaaa,\n" 5023 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 5024 NoBinPacking); 5025 5026 // If there is a subsequent call, change to hanging indentation. 5027 verifyFormat( 5028 "aaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5029 " aaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa))\n" 5030 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 5031 verifyFormat( 5032 "aaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5033 " aaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa));"); 5034 verifyFormat("aaaaaaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5035 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 5036 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 5037 verifyFormat("aaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5038 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 5039 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa());"); 5040 } 5041 5042 TEST_F(FormatTest, WrapsTemplateDeclarations) { 5043 verifyFormat("template <typename T>\n" 5044 "virtual void loooooooooooongFunction(int Param1, int Param2);"); 5045 verifyFormat("template <typename T>\n" 5046 "// T should be one of {A, B}.\n" 5047 "virtual void loooooooooooongFunction(int Param1, int Param2);"); 5048 verifyFormat( 5049 "template <typename T>\n" 5050 "using comment_to_xml_conversion = comment_to_xml_conversion<T, int>;"); 5051 verifyFormat("template <typename T>\n" 5052 "void f(int Paaaaaaaaaaaaaaaaaaaaaaaaaaaaaaram1,\n" 5053 " int Paaaaaaaaaaaaaaaaaaaaaaaaaaaaaaram2);"); 5054 verifyFormat( 5055 "template <typename T>\n" 5056 "void looooooooooooooooooooongFunction(int Paaaaaaaaaaaaaaaaaaaaram1,\n" 5057 " int Paaaaaaaaaaaaaaaaaaaaram2);"); 5058 verifyFormat( 5059 "template <typename T>\n" 5060 "aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaa,\n" 5061 " aaaaaaaaaaaaaaaaaaaaaaaaaa<T>::aaaaaaaaaa,\n" 5062 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 5063 verifyFormat("template <typename T>\n" 5064 "void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5065 " int aaaaaaaaaaaaaaaaaaaaaa);"); 5066 verifyFormat( 5067 "template <typename T1, typename T2 = char, typename T3 = char,\n" 5068 " typename T4 = char>\n" 5069 "void f();"); 5070 verifyFormat("template <typename aaaaaaaaaaa, typename bbbbbbbbbbbbb,\n" 5071 " template <typename> class cccccccccccccccccccccc,\n" 5072 " typename ddddddddddddd>\n" 5073 "class C {};"); 5074 verifyFormat( 5075 "aaaaaaaaaaaaaaaaaaaaaaaa<aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa>(\n" 5076 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 5077 5078 verifyFormat("void f() {\n" 5079 " a<aaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaa>(\n" 5080 " a(aaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaa));\n" 5081 "}"); 5082 5083 verifyFormat("template <typename T> class C {};"); 5084 verifyFormat("template <typename T> void f();"); 5085 verifyFormat("template <typename T> void f() {}"); 5086 verifyFormat( 5087 "aaaaaaaaaaaaa<aaaaaaaaaa, aaaaaaaaaaa,\n" 5088 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5089 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa> *aaaa =\n" 5090 " new aaaaaaaaaaaaa<aaaaaaaaaa, aaaaaaaaaaa,\n" 5091 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5092 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>(\n" 5093 " bbbbbbbbbbbbbbbbbbbbbbbb);", 5094 getLLVMStyleWithColumns(72)); 5095 EXPECT_EQ("static_cast<A< //\n" 5096 " B> *>(\n" 5097 "\n" 5098 " );", 5099 format("static_cast<A<//\n" 5100 " B>*>(\n" 5101 "\n" 5102 " );")); 5103 verifyFormat("int aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5104 " const typename aaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaa);"); 5105 5106 FormatStyle AlwaysBreak = getLLVMStyle(); 5107 AlwaysBreak.AlwaysBreakTemplateDeclarations = true; 5108 verifyFormat("template <typename T>\nclass C {};", AlwaysBreak); 5109 verifyFormat("template <typename T>\nvoid f();", AlwaysBreak); 5110 verifyFormat("template <typename T>\nvoid f() {}", AlwaysBreak); 5111 verifyFormat("void aaaaaaaaaaaaaaaaaaa<aaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5112 " bbbbbbbbbbbbbbbbbbbbbbbbbbbb>(\n" 5113 " ccccccccccccccccccccccccccccccccccccccccccccccc);"); 5114 verifyFormat("template <template <typename> class Fooooooo,\n" 5115 " template <typename> class Baaaaaaar>\n" 5116 "struct C {};", 5117 AlwaysBreak); 5118 verifyFormat("template <typename T> // T can be A, B or C.\n" 5119 "struct C {};", 5120 AlwaysBreak); 5121 } 5122 5123 TEST_F(FormatTest, WrapsAtNestedNameSpecifiers) { 5124 verifyFormat( 5125 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 5126 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 5127 verifyFormat( 5128 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 5129 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5130 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa());"); 5131 5132 // FIXME: Should we have the extra indent after the second break? 5133 verifyFormat( 5134 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 5135 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 5136 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 5137 5138 verifyFormat( 5139 "aaaaaaaaaaaaaaa(bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb::\n" 5140 " cccccccccccccccccccccccccccccccccccccccccccccc());"); 5141 5142 // Breaking at nested name specifiers is generally not desirable. 5143 verifyFormat( 5144 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5145 " aaaaaaaaaaaaaaaaaaaaaaa);"); 5146 5147 verifyFormat( 5148 "aaaaaaaaaaaaaaaaaa(aaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 5149 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5150 " aaaaaaaaaaaaaaaaaaaaa);", 5151 getLLVMStyleWithColumns(74)); 5152 5153 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 5154 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5155 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 5156 } 5157 5158 TEST_F(FormatTest, UnderstandsTemplateParameters) { 5159 verifyFormat("A<int> a;"); 5160 verifyFormat("A<A<A<int>>> a;"); 5161 verifyFormat("A<A<A<int, 2>, 3>, 4> a;"); 5162 verifyFormat("bool x = a < 1 || 2 > a;"); 5163 verifyFormat("bool x = 5 < f<int>();"); 5164 verifyFormat("bool x = f<int>() > 5;"); 5165 verifyFormat("bool x = 5 < a<int>::x;"); 5166 verifyFormat("bool x = a < 4 ? a > 2 : false;"); 5167 verifyFormat("bool x = f() ? a < 2 : a > 2;"); 5168 5169 verifyGoogleFormat("A<A<int>> a;"); 5170 verifyGoogleFormat("A<A<A<int>>> a;"); 5171 verifyGoogleFormat("A<A<A<A<int>>>> a;"); 5172 verifyGoogleFormat("A<A<int> > a;"); 5173 verifyGoogleFormat("A<A<A<int> > > a;"); 5174 verifyGoogleFormat("A<A<A<A<int> > > > a;"); 5175 verifyGoogleFormat("A<::A<int>> a;"); 5176 verifyGoogleFormat("A<::A> a;"); 5177 verifyGoogleFormat("A< ::A> a;"); 5178 verifyGoogleFormat("A< ::A<int> > a;"); 5179 EXPECT_EQ("A<A<A<A>>> a;", format("A<A<A<A> >> a;", getGoogleStyle())); 5180 EXPECT_EQ("A<A<A<A>>> a;", format("A<A<A<A>> > a;", getGoogleStyle())); 5181 EXPECT_EQ("A<::A<int>> a;", format("A< ::A<int>> a;", getGoogleStyle())); 5182 EXPECT_EQ("A<::A<int>> a;", format("A<::A<int> > a;", getGoogleStyle())); 5183 EXPECT_EQ("auto x = [] { A<A<A<A>>> a; };", 5184 format("auto x=[]{A<A<A<A> >> a;};", getGoogleStyle())); 5185 5186 verifyFormat("A<A>> a;", getChromiumStyle(FormatStyle::LK_Cpp)); 5187 5188 verifyFormat("test >> a >> b;"); 5189 verifyFormat("test << a >> b;"); 5190 5191 verifyFormat("f<int>();"); 5192 verifyFormat("template <typename T> void f() {}"); 5193 verifyFormat("struct A<std::enable_if<sizeof(T2) < sizeof(int32)>::type>;"); 5194 verifyFormat("struct A<std::enable_if<sizeof(T2) ? sizeof(int32) : " 5195 "sizeof(char)>::type>;"); 5196 verifyFormat("template <class T> struct S<std::is_arithmetic<T>{}> {};"); 5197 5198 // Not template parameters. 5199 verifyFormat("return a < b && c > d;"); 5200 verifyFormat("void f() {\n" 5201 " while (a < b && c > d) {\n" 5202 " }\n" 5203 "}"); 5204 verifyFormat("template <typename... Types>\n" 5205 "typename enable_if<0 < sizeof...(Types)>::type Foo() {}"); 5206 5207 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5208 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaa >> aaaaa);", 5209 getLLVMStyleWithColumns(60)); 5210 verifyFormat("static_assert(is_convertible<A &&, B>::value, \"AAA\");"); 5211 verifyFormat("Constructor(A... a) : a_(X<A>{std::forward<A>(a)}...) {}"); 5212 verifyFormat("< < < < < < < < < < < < < < < < < < < < < < < < < < < < < <"); 5213 } 5214 5215 TEST_F(FormatTest, UnderstandsBinaryOperators) { 5216 verifyFormat("COMPARE(a, ==, b);"); 5217 } 5218 5219 TEST_F(FormatTest, UnderstandsPointersToMembers) { 5220 verifyFormat("int A::*x;"); 5221 verifyFormat("int (S::*func)(void *);"); 5222 verifyFormat("void f() { int (S::*func)(void *); }"); 5223 verifyFormat("typedef bool *(Class::*Member)() const;"); 5224 verifyFormat("void f() {\n" 5225 " (a->*f)();\n" 5226 " a->*x;\n" 5227 " (a.*f)();\n" 5228 " ((*a).*f)();\n" 5229 " a.*x;\n" 5230 "}"); 5231 verifyFormat("void f() {\n" 5232 " (a->*aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)(\n" 5233 " aaaa, bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb);\n" 5234 "}"); 5235 verifyFormat( 5236 "(aaaaaaaaaa->*bbbbbbb)(\n" 5237 " aaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaa));"); 5238 FormatStyle Style = getLLVMStyle(); 5239 Style.PointerAlignment = FormatStyle::PAS_Left; 5240 verifyFormat("typedef bool* (Class::*Member)() const;", Style); 5241 } 5242 5243 TEST_F(FormatTest, UnderstandsUnaryOperators) { 5244 verifyFormat("int a = -2;"); 5245 verifyFormat("f(-1, -2, -3);"); 5246 verifyFormat("a[-1] = 5;"); 5247 verifyFormat("int a = 5 + -2;"); 5248 verifyFormat("if (i == -1) {\n}"); 5249 verifyFormat("if (i != -1) {\n}"); 5250 verifyFormat("if (i > -1) {\n}"); 5251 verifyFormat("if (i < -1) {\n}"); 5252 verifyFormat("++(a->f());"); 5253 verifyFormat("--(a->f());"); 5254 verifyFormat("(a->f())++;"); 5255 verifyFormat("a[42]++;"); 5256 verifyFormat("if (!(a->f())) {\n}"); 5257 5258 verifyFormat("a-- > b;"); 5259 verifyFormat("b ? -a : c;"); 5260 verifyFormat("n * sizeof char16;"); 5261 verifyFormat("n * alignof char16;", getGoogleStyle()); 5262 verifyFormat("sizeof(char);"); 5263 verifyFormat("alignof(char);", getGoogleStyle()); 5264 5265 verifyFormat("return -1;"); 5266 verifyFormat("switch (a) {\n" 5267 "case -1:\n" 5268 " break;\n" 5269 "}"); 5270 verifyFormat("#define X -1"); 5271 verifyFormat("#define X -kConstant"); 5272 5273 verifyFormat("const NSPoint kBrowserFrameViewPatternOffset = {-5, +3};"); 5274 verifyFormat("const NSPoint kBrowserFrameViewPatternOffset = {+5, -3};"); 5275 5276 verifyFormat("int a = /* confusing comment */ -1;"); 5277 // FIXME: The space after 'i' is wrong, but hopefully, this is a rare case. 5278 verifyFormat("int a = i /* confusing comment */++;"); 5279 } 5280 5281 TEST_F(FormatTest, DoesNotIndentRelativeToUnaryOperators) { 5282 verifyFormat("if (!aaaaaaaaaa( // break\n" 5283 " aaaaa)) {\n" 5284 "}"); 5285 verifyFormat("aaaaaaaaaa(!aaaaaaaaaa( // break\n" 5286 " aaaaa));"); 5287 verifyFormat("*aaa = aaaaaaa( // break\n" 5288 " bbbbbb);"); 5289 } 5290 5291 TEST_F(FormatTest, UnderstandsOverloadedOperators) { 5292 verifyFormat("bool operator<();"); 5293 verifyFormat("bool operator>();"); 5294 verifyFormat("bool operator=();"); 5295 verifyFormat("bool operator==();"); 5296 verifyFormat("bool operator!=();"); 5297 verifyFormat("int operator+();"); 5298 verifyFormat("int operator++();"); 5299 verifyFormat("bool operator();"); 5300 verifyFormat("bool operator()();"); 5301 verifyFormat("bool operator[]();"); 5302 verifyFormat("operator bool();"); 5303 verifyFormat("operator int();"); 5304 verifyFormat("operator void *();"); 5305 verifyFormat("operator SomeType<int>();"); 5306 verifyFormat("operator SomeType<int, int>();"); 5307 verifyFormat("operator SomeType<SomeType<int>>();"); 5308 verifyFormat("void *operator new(std::size_t size);"); 5309 verifyFormat("void *operator new[](std::size_t size);"); 5310 verifyFormat("void operator delete(void *ptr);"); 5311 verifyFormat("void operator delete[](void *ptr);"); 5312 verifyFormat("template <typename AAAAAAA, typename BBBBBBB>\n" 5313 "AAAAAAA operator/(const AAAAAAA &a, BBBBBBB &b);"); 5314 5315 verifyFormat( 5316 "ostream &operator<<(ostream &OutputStream,\n" 5317 " SomeReallyLongType WithSomeReallyLongValue);"); 5318 verifyFormat("bool operator<(const aaaaaaaaaaaaaaaaaaaaa &left,\n" 5319 " const aaaaaaaaaaaaaaaaaaaaa &right) {\n" 5320 " return left.group < right.group;\n" 5321 "}"); 5322 verifyFormat("SomeType &operator=(const SomeType &S);"); 5323 verifyFormat("f.template operator()<int>();"); 5324 5325 verifyGoogleFormat("operator void*();"); 5326 verifyGoogleFormat("operator SomeType<SomeType<int>>();"); 5327 verifyGoogleFormat("operator ::A();"); 5328 5329 verifyFormat("using A::operator+;"); 5330 } 5331 5332 TEST_F(FormatTest, UnderstandsFunctionRefQualification) { 5333 verifyFormat("Deleted &operator=(const Deleted &) & = default;"); 5334 verifyFormat("Deleted &operator=(const Deleted &) && = delete;"); 5335 verifyFormat("SomeType MemberFunction(const Deleted &) & = delete;"); 5336 verifyFormat("SomeType MemberFunction(const Deleted &) && = delete;"); 5337 verifyFormat("Deleted &operator=(const Deleted &) &;"); 5338 verifyFormat("Deleted &operator=(const Deleted &) &&;"); 5339 verifyFormat("SomeType MemberFunction(const Deleted &) &;"); 5340 verifyFormat("SomeType MemberFunction(const Deleted &) &&;"); 5341 verifyFormat("SomeType MemberFunction(const Deleted &) && {}"); 5342 verifyFormat("SomeType MemberFunction(const Deleted &) && final {}"); 5343 verifyFormat("SomeType MemberFunction(const Deleted &) && override {}"); 5344 5345 FormatStyle AlignLeft = getLLVMStyle(); 5346 AlignLeft.PointerAlignment = FormatStyle::PAS_Left; 5347 verifyFormat("Deleted& operator=(const Deleted&) & = default;", AlignLeft); 5348 verifyFormat("SomeType MemberFunction(const Deleted&) & = delete;", 5349 AlignLeft); 5350 verifyFormat("Deleted& operator=(const Deleted&) &;", AlignLeft); 5351 verifyFormat("SomeType MemberFunction(const Deleted&) &;", AlignLeft); 5352 5353 FormatStyle Spaces = getLLVMStyle(); 5354 Spaces.SpacesInCStyleCastParentheses = true; 5355 verifyFormat("Deleted &operator=(const Deleted &) & = default;", Spaces); 5356 verifyFormat("SomeType MemberFunction(const Deleted &) & = delete;", Spaces); 5357 verifyFormat("Deleted &operator=(const Deleted &) &;", Spaces); 5358 verifyFormat("SomeType MemberFunction(const Deleted &) &;", Spaces); 5359 5360 Spaces.SpacesInCStyleCastParentheses = false; 5361 Spaces.SpacesInParentheses = true; 5362 verifyFormat("Deleted &operator=( const Deleted & ) & = default;", Spaces); 5363 verifyFormat("SomeType MemberFunction( const Deleted & ) & = delete;", Spaces); 5364 verifyFormat("Deleted &operator=( const Deleted & ) &;", Spaces); 5365 verifyFormat("SomeType MemberFunction( const Deleted & ) &;", Spaces); 5366 } 5367 5368 TEST_F(FormatTest, UnderstandsNewAndDelete) { 5369 verifyFormat("void f() {\n" 5370 " A *a = new A;\n" 5371 " A *a = new (placement) A;\n" 5372 " delete a;\n" 5373 " delete (A *)a;\n" 5374 "}"); 5375 verifyFormat("new (aaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaa))\n" 5376 " typename aaaaaaaaaaaaaaaaaaaaaaaa();"); 5377 verifyFormat("auto aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 5378 " new (aaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaa))\n" 5379 " typename aaaaaaaaaaaaaaaaaaaaaaaa();"); 5380 verifyFormat("delete[] h->p;"); 5381 } 5382 5383 TEST_F(FormatTest, UnderstandsUsesOfStarAndAmp) { 5384 verifyFormat("int *f(int *a) {}"); 5385 verifyFormat("int main(int argc, char **argv) {}"); 5386 verifyFormat("Test::Test(int b) : a(b * b) {}"); 5387 verifyIndependentOfContext("f(a, *a);"); 5388 verifyFormat("void g() { f(*a); }"); 5389 verifyIndependentOfContext("int a = b * 10;"); 5390 verifyIndependentOfContext("int a = 10 * b;"); 5391 verifyIndependentOfContext("int a = b * c;"); 5392 verifyIndependentOfContext("int a += b * c;"); 5393 verifyIndependentOfContext("int a -= b * c;"); 5394 verifyIndependentOfContext("int a *= b * c;"); 5395 verifyIndependentOfContext("int a /= b * c;"); 5396 verifyIndependentOfContext("int a = *b;"); 5397 verifyIndependentOfContext("int a = *b * c;"); 5398 verifyIndependentOfContext("int a = b * *c;"); 5399 verifyIndependentOfContext("int a = b * (10);"); 5400 verifyIndependentOfContext("S << b * (10);"); 5401 verifyIndependentOfContext("return 10 * b;"); 5402 verifyIndependentOfContext("return *b * *c;"); 5403 verifyIndependentOfContext("return a & ~b;"); 5404 verifyIndependentOfContext("f(b ? *c : *d);"); 5405 verifyIndependentOfContext("int a = b ? *c : *d;"); 5406 verifyIndependentOfContext("*b = a;"); 5407 verifyIndependentOfContext("a * ~b;"); 5408 verifyIndependentOfContext("a * !b;"); 5409 verifyIndependentOfContext("a * +b;"); 5410 verifyIndependentOfContext("a * -b;"); 5411 verifyIndependentOfContext("a * ++b;"); 5412 verifyIndependentOfContext("a * --b;"); 5413 verifyIndependentOfContext("a[4] * b;"); 5414 verifyIndependentOfContext("a[a * a] = 1;"); 5415 verifyIndependentOfContext("f() * b;"); 5416 verifyIndependentOfContext("a * [self dostuff];"); 5417 verifyIndependentOfContext("int x = a * (a + b);"); 5418 verifyIndependentOfContext("(a *)(a + b);"); 5419 verifyIndependentOfContext("*(int *)(p & ~3UL) = 0;"); 5420 verifyIndependentOfContext("int *pa = (int *)&a;"); 5421 verifyIndependentOfContext("return sizeof(int **);"); 5422 verifyIndependentOfContext("return sizeof(int ******);"); 5423 verifyIndependentOfContext("return (int **&)a;"); 5424 verifyIndependentOfContext("f((*PointerToArray)[10]);"); 5425 verifyFormat("void f(Type (*parameter)[10]) {}"); 5426 verifyGoogleFormat("return sizeof(int**);"); 5427 verifyIndependentOfContext("Type **A = static_cast<Type **>(P);"); 5428 verifyGoogleFormat("Type** A = static_cast<Type**>(P);"); 5429 verifyFormat("auto a = [](int **&, int ***) {};"); 5430 verifyFormat("auto PointerBinding = [](const char *S) {};"); 5431 verifyFormat("typedef typeof(int(int, int)) *MyFunc;"); 5432 verifyFormat("[](const decltype(*a) &value) {}"); 5433 verifyFormat("decltype(a * b) F();"); 5434 verifyFormat("#define MACRO() [](A *a) { return 1; }"); 5435 verifyIndependentOfContext("typedef void (*f)(int *a);"); 5436 verifyIndependentOfContext("int i{a * b};"); 5437 verifyIndependentOfContext("aaa && aaa->f();"); 5438 verifyIndependentOfContext("int x = ~*p;"); 5439 verifyFormat("Constructor() : a(a), area(width * height) {}"); 5440 verifyFormat("Constructor() : a(a), area(a, width * height) {}"); 5441 verifyGoogleFormat("MACRO Constructor(const int& i) : a(a), b(b) {}"); 5442 verifyFormat("void f() { f(a, c * d); }"); 5443 verifyFormat("void f() { f(new a(), c * d); }"); 5444 5445 verifyIndependentOfContext("InvalidRegions[*R] = 0;"); 5446 5447 verifyIndependentOfContext("A<int *> a;"); 5448 verifyIndependentOfContext("A<int **> a;"); 5449 verifyIndependentOfContext("A<int *, int *> a;"); 5450 verifyIndependentOfContext("A<int *[]> a;"); 5451 verifyIndependentOfContext( 5452 "const char *const p = reinterpret_cast<const char *const>(q);"); 5453 verifyIndependentOfContext("A<int **, int **> a;"); 5454 verifyIndependentOfContext("void f(int *a = d * e, int *b = c * d);"); 5455 verifyFormat("for (char **a = b; *a; ++a) {\n}"); 5456 verifyFormat("for (; a && b;) {\n}"); 5457 verifyFormat("bool foo = true && [] { return false; }();"); 5458 5459 verifyFormat( 5460 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5461 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa, *aaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 5462 5463 verifyGoogleFormat("**outparam = 1;"); 5464 verifyGoogleFormat("*outparam = a * b;"); 5465 verifyGoogleFormat("int main(int argc, char** argv) {}"); 5466 verifyGoogleFormat("A<int*> a;"); 5467 verifyGoogleFormat("A<int**> a;"); 5468 verifyGoogleFormat("A<int*, int*> a;"); 5469 verifyGoogleFormat("A<int**, int**> a;"); 5470 verifyGoogleFormat("f(b ? *c : *d);"); 5471 verifyGoogleFormat("int a = b ? *c : *d;"); 5472 verifyGoogleFormat("Type* t = **x;"); 5473 verifyGoogleFormat("Type* t = *++*x;"); 5474 verifyGoogleFormat("*++*x;"); 5475 verifyGoogleFormat("Type* t = const_cast<T*>(&*x);"); 5476 verifyGoogleFormat("Type* t = x++ * y;"); 5477 verifyGoogleFormat( 5478 "const char* const p = reinterpret_cast<const char* const>(q);"); 5479 verifyGoogleFormat("void f(int i = 0, SomeType** temps = NULL);"); 5480 verifyGoogleFormat("void f(Bar* a = nullptr, Bar* b);"); 5481 verifyGoogleFormat("template <typename T>\n" 5482 "void f(int i = 0, SomeType** temps = NULL);"); 5483 5484 FormatStyle Left = getLLVMStyle(); 5485 Left.PointerAlignment = FormatStyle::PAS_Left; 5486 verifyFormat("x = *a(x) = *a(y);", Left); 5487 verifyFormat("for (;; * = b) {\n}", Left); 5488 5489 verifyIndependentOfContext("a = *(x + y);"); 5490 verifyIndependentOfContext("a = &(x + y);"); 5491 verifyIndependentOfContext("*(x + y).call();"); 5492 verifyIndependentOfContext("&(x + y)->call();"); 5493 verifyFormat("void f() { &(*I).first; }"); 5494 5495 verifyIndependentOfContext("f(b * /* confusing comment */ ++c);"); 5496 verifyFormat( 5497 "int *MyValues = {\n" 5498 " *A, // Operator detection might be confused by the '{'\n" 5499 " *BB // Operator detection might be confused by previous comment\n" 5500 "};"); 5501 5502 verifyIndependentOfContext("if (int *a = &b)"); 5503 verifyIndependentOfContext("if (int &a = *b)"); 5504 verifyIndependentOfContext("if (a & b[i])"); 5505 verifyIndependentOfContext("if (a::b::c::d & b[i])"); 5506 verifyIndependentOfContext("if (*b[i])"); 5507 verifyIndependentOfContext("if (int *a = (&b))"); 5508 verifyIndependentOfContext("while (int *a = &b)"); 5509 verifyIndependentOfContext("size = sizeof *a;"); 5510 verifyIndependentOfContext("if (a && (b = c))"); 5511 verifyFormat("void f() {\n" 5512 " for (const int &v : Values) {\n" 5513 " }\n" 5514 "}"); 5515 verifyFormat("for (int i = a * a; i < 10; ++i) {\n}"); 5516 verifyFormat("for (int i = 0; i < a * a; ++i) {\n}"); 5517 verifyGoogleFormat("for (int i = 0; i * 2 < z; i *= 2) {\n}"); 5518 5519 verifyFormat("#define A (!a * b)"); 5520 verifyFormat("#define MACRO \\\n" 5521 " int *i = a * b; \\\n" 5522 " void f(a *b);", 5523 getLLVMStyleWithColumns(19)); 5524 5525 verifyIndependentOfContext("A = new SomeType *[Length];"); 5526 verifyIndependentOfContext("A = new SomeType *[Length]();"); 5527 verifyIndependentOfContext("T **t = new T *;"); 5528 verifyIndependentOfContext("T **t = new T *();"); 5529 verifyGoogleFormat("A = new SomeType*[Length]();"); 5530 verifyGoogleFormat("A = new SomeType*[Length];"); 5531 verifyGoogleFormat("T** t = new T*;"); 5532 verifyGoogleFormat("T** t = new T*();"); 5533 5534 FormatStyle PointerLeft = getLLVMStyle(); 5535 PointerLeft.PointerAlignment = FormatStyle::PAS_Left; 5536 verifyFormat("delete *x;", PointerLeft); 5537 verifyFormat("STATIC_ASSERT((a & b) == 0);"); 5538 verifyFormat("STATIC_ASSERT(0 == (a & b));"); 5539 verifyFormat("template <bool a, bool b> " 5540 "typename t::if<x && y>::type f() {}"); 5541 verifyFormat("template <int *y> f() {}"); 5542 verifyFormat("vector<int *> v;"); 5543 verifyFormat("vector<int *const> v;"); 5544 verifyFormat("vector<int *const **const *> v;"); 5545 verifyFormat("vector<int *volatile> v;"); 5546 verifyFormat("vector<a * b> v;"); 5547 verifyFormat("foo<b && false>();"); 5548 verifyFormat("foo<b & 1>();"); 5549 verifyFormat("decltype(*::std::declval<const T &>()) void F();"); 5550 verifyFormat( 5551 "template <class T, class = typename std::enable_if<\n" 5552 " std::is_integral<T>::value &&\n" 5553 " (sizeof(T) > 1 || sizeof(T) < 8)>::type>\n" 5554 "void F();", 5555 getLLVMStyleWithColumns(76)); 5556 verifyFormat( 5557 "template <class T,\n" 5558 " class = typename ::std::enable_if<\n" 5559 " ::std::is_array<T>{} && ::std::is_array<T>{}>::type>\n" 5560 "void F();", 5561 getGoogleStyleWithColumns(68)); 5562 5563 verifyIndependentOfContext("MACRO(int *i);"); 5564 verifyIndependentOfContext("MACRO(auto *a);"); 5565 verifyIndependentOfContext("MACRO(const A *a);"); 5566 verifyIndependentOfContext("MACRO('0' <= c && c <= '9');"); 5567 // FIXME: Is there a way to make this work? 5568 // verifyIndependentOfContext("MACRO(A *a);"); 5569 5570 verifyFormat("DatumHandle const *operator->() const { return input_; }"); 5571 5572 EXPECT_EQ("#define OP(x) \\\n" 5573 " ostream &operator<<(ostream &s, const A &a) { \\\n" 5574 " return s << a.DebugString(); \\\n" 5575 " }", 5576 format("#define OP(x) \\\n" 5577 " ostream &operator<<(ostream &s, const A &a) { \\\n" 5578 " return s << a.DebugString(); \\\n" 5579 " }", 5580 getLLVMStyleWithColumns(50))); 5581 5582 // FIXME: We cannot handle this case yet; we might be able to figure out that 5583 // foo<x> d > v; doesn't make sense. 5584 verifyFormat("foo<a<b && c> d> v;"); 5585 5586 FormatStyle PointerMiddle = getLLVMStyle(); 5587 PointerMiddle.PointerAlignment = FormatStyle::PAS_Middle; 5588 verifyFormat("delete *x;", PointerMiddle); 5589 verifyFormat("int * x;", PointerMiddle); 5590 verifyFormat("template <int * y> f() {}", PointerMiddle); 5591 verifyFormat("int * f(int * a) {}", PointerMiddle); 5592 verifyFormat("int main(int argc, char ** argv) {}", PointerMiddle); 5593 verifyFormat("Test::Test(int b) : a(b * b) {}", PointerMiddle); 5594 verifyFormat("A<int *> a;", PointerMiddle); 5595 verifyFormat("A<int **> a;", PointerMiddle); 5596 verifyFormat("A<int *, int *> a;", PointerMiddle); 5597 verifyFormat("A<int * []> a;", PointerMiddle); 5598 verifyFormat("A = new SomeType *[Length]();", PointerMiddle); 5599 verifyFormat("A = new SomeType *[Length];", PointerMiddle); 5600 verifyFormat("T ** t = new T *;", PointerMiddle); 5601 5602 // Member function reference qualifiers aren't binary operators. 5603 verifyFormat("string // break\n" 5604 "operator()() & {}"); 5605 verifyFormat("string // break\n" 5606 "operator()() && {}"); 5607 verifyGoogleFormat("template <typename T>\n" 5608 "auto x() & -> int {}"); 5609 } 5610 5611 TEST_F(FormatTest, UnderstandsAttributes) { 5612 verifyFormat("SomeType s __attribute__((unused)) (InitValue);"); 5613 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa __attribute__((unused))\n" 5614 "aaaaaaaaaaaaaaaaaaaaaaa(int i);"); 5615 FormatStyle AfterType = getLLVMStyle(); 5616 AfterType.AlwaysBreakAfterDefinitionReturnType = FormatStyle::DRTBS_All; 5617 verifyFormat("__attribute__((nodebug)) void\n" 5618 "foo() {}\n", 5619 AfterType); 5620 } 5621 5622 TEST_F(FormatTest, UnderstandsEllipsis) { 5623 verifyFormat("int printf(const char *fmt, ...);"); 5624 verifyFormat("template <class... Ts> void Foo(Ts... ts) { Foo(ts...); }"); 5625 verifyFormat("template <class... Ts> void Foo(Ts *... ts) {}"); 5626 5627 FormatStyle PointersLeft = getLLVMStyle(); 5628 PointersLeft.PointerAlignment = FormatStyle::PAS_Left; 5629 verifyFormat("template <class... Ts> void Foo(Ts*... ts) {}", PointersLeft); 5630 } 5631 5632 TEST_F(FormatTest, AdaptivelyFormatsPointersAndReferences) { 5633 EXPECT_EQ("int *a;\n" 5634 "int *a;\n" 5635 "int *a;", 5636 format("int *a;\n" 5637 "int* a;\n" 5638 "int *a;", 5639 getGoogleStyle())); 5640 EXPECT_EQ("int* a;\n" 5641 "int* a;\n" 5642 "int* a;", 5643 format("int* a;\n" 5644 "int* a;\n" 5645 "int *a;", 5646 getGoogleStyle())); 5647 EXPECT_EQ("int *a;\n" 5648 "int *a;\n" 5649 "int *a;", 5650 format("int *a;\n" 5651 "int * a;\n" 5652 "int * a;", 5653 getGoogleStyle())); 5654 EXPECT_EQ("auto x = [] {\n" 5655 " int *a;\n" 5656 " int *a;\n" 5657 " int *a;\n" 5658 "};", 5659 format("auto x=[]{int *a;\n" 5660 "int * a;\n" 5661 "int * a;};", 5662 getGoogleStyle())); 5663 } 5664 5665 TEST_F(FormatTest, UnderstandsRvalueReferences) { 5666 verifyFormat("int f(int &&a) {}"); 5667 verifyFormat("int f(int a, char &&b) {}"); 5668 verifyFormat("void f() { int &&a = b; }"); 5669 verifyGoogleFormat("int f(int a, char&& b) {}"); 5670 verifyGoogleFormat("void f() { int&& a = b; }"); 5671 5672 verifyIndependentOfContext("A<int &&> a;"); 5673 verifyIndependentOfContext("A<int &&, int &&> a;"); 5674 verifyGoogleFormat("A<int&&> a;"); 5675 verifyGoogleFormat("A<int&&, int&&> a;"); 5676 5677 // Not rvalue references: 5678 verifyFormat("template <bool B, bool C> class A {\n" 5679 " static_assert(B && C, \"Something is wrong\");\n" 5680 "};"); 5681 verifyGoogleFormat("#define IF(a, b, c) if (a && (b == c))"); 5682 verifyGoogleFormat("#define WHILE(a, b, c) while (a && (b == c))"); 5683 verifyFormat("#define A(a, b) (a && b)"); 5684 } 5685 5686 TEST_F(FormatTest, FormatsBinaryOperatorsPrecedingEquals) { 5687 verifyFormat("void f() {\n" 5688 " x[aaaaaaaaa -\n" 5689 " b] = 23;\n" 5690 "}", 5691 getLLVMStyleWithColumns(15)); 5692 } 5693 5694 TEST_F(FormatTest, FormatsCasts) { 5695 verifyFormat("Type *A = static_cast<Type *>(P);"); 5696 verifyFormat("Type *A = (Type *)P;"); 5697 verifyFormat("Type *A = (vector<Type *, int *>)P;"); 5698 verifyFormat("int a = (int)(2.0f);"); 5699 verifyFormat("int a = (int)2.0f;"); 5700 verifyFormat("x[(int32)y];"); 5701 verifyFormat("x = (int32)y;"); 5702 verifyFormat("#define AA(X) sizeof(((X *)NULL)->a)"); 5703 verifyFormat("int a = (int)*b;"); 5704 verifyFormat("int a = (int)2.0f;"); 5705 verifyFormat("int a = (int)~0;"); 5706 verifyFormat("int a = (int)++a;"); 5707 verifyFormat("int a = (int)sizeof(int);"); 5708 verifyFormat("int a = (int)+2;"); 5709 verifyFormat("my_int a = (my_int)2.0f;"); 5710 verifyFormat("my_int a = (my_int)sizeof(int);"); 5711 verifyFormat("return (my_int)aaa;"); 5712 verifyFormat("#define x ((int)-1)"); 5713 verifyFormat("#define LENGTH(x, y) (x) - (y) + 1"); 5714 verifyFormat("#define p(q) ((int *)&q)"); 5715 verifyFormat("fn(a)(b) + 1;"); 5716 5717 verifyFormat("void f() { my_int a = (my_int)*b; }"); 5718 verifyFormat("void f() { return P ? (my_int)*P : (my_int)0; }"); 5719 verifyFormat("my_int a = (my_int)~0;"); 5720 verifyFormat("my_int a = (my_int)++a;"); 5721 verifyFormat("my_int a = (my_int)-2;"); 5722 verifyFormat("my_int a = (my_int)1;"); 5723 verifyFormat("my_int a = (my_int *)1;"); 5724 verifyFormat("my_int a = (const my_int)-1;"); 5725 verifyFormat("my_int a = (const my_int *)-1;"); 5726 verifyFormat("my_int a = (my_int)(my_int)-1;"); 5727 verifyFormat("my_int a = (ns::my_int)-2;"); 5728 verifyFormat("case (my_int)ONE:"); 5729 5730 // FIXME: single value wrapped with paren will be treated as cast. 5731 verifyFormat("void f(int i = (kValue)*kMask) {}"); 5732 5733 verifyFormat("{ (void)F; }"); 5734 5735 // Don't break after a cast's 5736 verifyFormat("int aaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 5737 " (aaaaaaaaaaaaaaaaaaaaaaaaaa *)(aaaaaaaaaaaaaaaaaaaaaa +\n" 5738 " bbbbbbbbbbbbbbbbbbbbbb);"); 5739 5740 // These are not casts. 5741 verifyFormat("void f(int *) {}"); 5742 verifyFormat("f(foo)->b;"); 5743 verifyFormat("f(foo).b;"); 5744 verifyFormat("f(foo)(b);"); 5745 verifyFormat("f(foo)[b];"); 5746 verifyFormat("[](foo) { return 4; }(bar);"); 5747 verifyFormat("(*funptr)(foo)[4];"); 5748 verifyFormat("funptrs[4](foo)[4];"); 5749 verifyFormat("void f(int *);"); 5750 verifyFormat("void f(int *) = 0;"); 5751 verifyFormat("void f(SmallVector<int>) {}"); 5752 verifyFormat("void f(SmallVector<int>);"); 5753 verifyFormat("void f(SmallVector<int>) = 0;"); 5754 verifyFormat("void f(int i = (kA * kB) & kMask) {}"); 5755 verifyFormat("int a = sizeof(int) * b;"); 5756 verifyFormat("int a = alignof(int) * b;", getGoogleStyle()); 5757 verifyFormat("template <> void f<int>(int i) SOME_ANNOTATION;"); 5758 verifyFormat("f(\"%\" SOME_MACRO(ll) \"d\");"); 5759 verifyFormat("aaaaa &operator=(const aaaaa &) LLVM_DELETED_FUNCTION;"); 5760 5761 // These are not casts, but at some point were confused with casts. 5762 verifyFormat("virtual void foo(int *) override;"); 5763 verifyFormat("virtual void foo(char &) const;"); 5764 verifyFormat("virtual void foo(int *a, char *) const;"); 5765 verifyFormat("int a = sizeof(int *) + b;"); 5766 verifyFormat("int a = alignof(int *) + b;", getGoogleStyle()); 5767 5768 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *foo = (aaaaaaaaaaaaaaaaa *)\n" 5769 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;"); 5770 // FIXME: The indentation here is not ideal. 5771 verifyFormat( 5772 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5773 " [bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb] = (*cccccccccccccccc)\n" 5774 " [dddddddddddddddddddddddddddddddddddddddddddddddddddddddd];"); 5775 } 5776 5777 TEST_F(FormatTest, FormatsFunctionTypes) { 5778 verifyFormat("A<bool()> a;"); 5779 verifyFormat("A<SomeType()> a;"); 5780 verifyFormat("A<void (*)(int, std::string)> a;"); 5781 verifyFormat("A<void *(int)>;"); 5782 verifyFormat("void *(*a)(int *, SomeType *);"); 5783 verifyFormat("int (*func)(void *);"); 5784 verifyFormat("void f() { int (*func)(void *); }"); 5785 verifyFormat("template <class CallbackClass>\n" 5786 "using MyCallback = void (CallbackClass::*)(SomeObject *Data);"); 5787 5788 verifyGoogleFormat("A<void*(int*, SomeType*)>;"); 5789 verifyGoogleFormat("void* (*a)(int);"); 5790 verifyGoogleFormat( 5791 "template <class CallbackClass>\n" 5792 "using MyCallback = void (CallbackClass::*)(SomeObject* Data);"); 5793 5794 // Other constructs can look somewhat like function types: 5795 verifyFormat("A<sizeof(*x)> a;"); 5796 verifyFormat("#define DEREF_AND_CALL_F(x) f(*x)"); 5797 verifyFormat("some_var = function(*some_pointer_var)[0];"); 5798 verifyFormat("void f() { function(*some_pointer_var)[0] = 10; }"); 5799 } 5800 5801 TEST_F(FormatTest, FormatsPointersToArrayTypes) { 5802 verifyFormat("A (*foo_)[6];"); 5803 verifyFormat("vector<int> (*foo_)[6];"); 5804 } 5805 5806 TEST_F(FormatTest, BreaksLongVariableDeclarations) { 5807 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n" 5808 " LoooooooooooooooooooooooooooooooooooooooongVariable;"); 5809 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType const\n" 5810 " LoooooooooooooooooooooooooooooooooooooooongVariable;"); 5811 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n" 5812 " *LoooooooooooooooooooooooooooooooooooooooongVariable;"); 5813 5814 // Different ways of ()-initializiation. 5815 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n" 5816 " LoooooooooooooooooooooooooooooooooooooooongVariable(1);"); 5817 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n" 5818 " LoooooooooooooooooooooooooooooooooooooooongVariable(a);"); 5819 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n" 5820 " LoooooooooooooooooooooooooooooooooooooooongVariable({});"); 5821 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n" 5822 " LoooooooooooooooooooooooooooooooooooooongVariable([A a]);"); 5823 } 5824 5825 TEST_F(FormatTest, BreaksLongDeclarations) { 5826 verifyFormat("typedef LoooooooooooooooooooooooooooooooooooooooongType\n" 5827 " AnotherNameForTheLongType;"); 5828 verifyFormat("typedef LongTemplateType<aaaaaaaaaaaaaaaaaaa()>\n" 5829 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 5830 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType\n" 5831 "LoooooooooooooooooooooooooooooooongFunctionDeclaration();"); 5832 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType *\n" 5833 "LoooooooooooooooooooooooooooooooongFunctionDeclaration();"); 5834 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType\n" 5835 "LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}"); 5836 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType MACRO\n" 5837 "LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}"); 5838 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType const\n" 5839 "LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}"); 5840 verifyFormat("decltype(LoooooooooooooooooooooooooooooooooooooooongName)\n" 5841 "LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}"); 5842 FormatStyle Indented = getLLVMStyle(); 5843 Indented.IndentWrappedFunctionNames = true; 5844 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType\n" 5845 " LoooooooooooooooooooooooooooooooongFunctionDeclaration();", 5846 Indented); 5847 verifyFormat( 5848 "LoooooooooooooooooooooooooooooooooooooooongReturnType\n" 5849 " LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}", 5850 Indented); 5851 verifyFormat( 5852 "LoooooooooooooooooooooooooooooooooooooooongReturnType const\n" 5853 " LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}", 5854 Indented); 5855 verifyFormat( 5856 "decltype(LoooooooooooooooooooooooooooooooooooooooongName)\n" 5857 " LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}", 5858 Indented); 5859 5860 // FIXME: Without the comment, this breaks after "(". 5861 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType // break\n" 5862 " (*LoooooooooooooooooooooooooooongFunctionTypeVarialbe)();", 5863 getGoogleStyle()); 5864 5865 verifyFormat("int *someFunction(int LoooooooooooooooooooongParam1,\n" 5866 " int LoooooooooooooooooooongParam2) {}"); 5867 verifyFormat( 5868 "TypeSpecDecl *TypeSpecDecl::Create(ASTContext &C, DeclContext *DC,\n" 5869 " SourceLocation L, IdentifierIn *II,\n" 5870 " Type *T) {}"); 5871 verifyFormat("ReallyLongReturnType<TemplateParam1, TemplateParam2>\n" 5872 "ReallyReaaallyLongFunctionName(\n" 5873 " const std::string &SomeParameter,\n" 5874 " const SomeType<string, SomeOtherTemplateParameter>\n" 5875 " &ReallyReallyLongParameterName,\n" 5876 " const SomeType<string, SomeOtherTemplateParameter>\n" 5877 " &AnotherLongParameterName) {}"); 5878 verifyFormat("template <typename A>\n" 5879 "SomeLoooooooooooooooooooooongType<\n" 5880 " typename some_namespace::SomeOtherType<A>::Type>\n" 5881 "Function() {}"); 5882 5883 verifyGoogleFormat( 5884 "aaaaaaaaaaaaaaaa::aaaaaaaaaaaaaaaa<aaaaaaaaaaaaa, aaaaaaaaaaaa>\n" 5885 " aaaaaaaaaaaaaaaaaaaaaaa;"); 5886 verifyGoogleFormat( 5887 "TypeSpecDecl* TypeSpecDecl::Create(ASTContext& C, DeclContext* DC,\n" 5888 " SourceLocation L) {}"); 5889 verifyGoogleFormat( 5890 "some_namespace::LongReturnType\n" 5891 "long_namespace::SomeVeryLongClass::SomeVeryLongFunction(\n" 5892 " int first_long_parameter, int second_parameter) {}"); 5893 5894 verifyGoogleFormat("template <typename T>\n" 5895 "aaaaaaaa::aaaaa::aaaaaa<T, aaaaaaaaaaaaaaaaaaaaaaaaa>\n" 5896 "aaaaaaaaaaaaaaaaaaaaaaaa<T>::aaaaaaa() {}"); 5897 verifyGoogleFormat("A<A<A>> aaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5898 " int aaaaaaaaaaaaaaaaaaaaaaa);"); 5899 5900 verifyFormat("typedef size_t (*aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)(\n" 5901 " const aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5902 " *aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 5903 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5904 " vector<aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>\n" 5905 " aaaaaaaaaaaaaaaaaaaaaaaa);"); 5906 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5907 " vector<aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa<\n" 5908 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>>\n" 5909 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 5910 } 5911 5912 TEST_F(FormatTest, FormatsArrays) { 5913 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaa[aaaaaaaaaaaaaaaaaaaaaaaaa]\n" 5914 " [bbbbbbbbbbbbbbbbbbbbbbbbb] = c;"); 5915 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5916 " [bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb] = ccccccccccc;"); 5917 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5918 " [a][bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb] = cccccccc;"); 5919 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5920 " [aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa]\n" 5921 " [bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb] = ccccccccccc;"); 5922 verifyFormat( 5923 "llvm::outs() << \"aaaaaaaaaaaa: \"\n" 5924 " << (*aaaaaaaiaaaaaaa)[aaaaaaaaaaaaaaaaaaaaaaaaa]\n" 5925 " [aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa];"); 5926 5927 verifyGoogleFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa<int>\n" 5928 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[aaaaaaaaaaaa];"); 5929 verifyFormat( 5930 "aaaaaaaaaaa aaaaaaaaaaaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaa->aaaaaaaaa[0]\n" 5931 " .aaaaaaa[0]\n" 5932 " .aaaaaaaaaaaaaaaaaaaaaa();"); 5933 5934 verifyNoCrash("a[,Y?)]", getLLVMStyleWithColumns(10)); 5935 } 5936 5937 TEST_F(FormatTest, LineStartsWithSpecialCharacter) { 5938 verifyFormat("(a)->b();"); 5939 verifyFormat("--a;"); 5940 } 5941 5942 TEST_F(FormatTest, HandlesIncludeDirectives) { 5943 verifyFormat("#include <string>\n" 5944 "#include <a/b/c.h>\n" 5945 "#include \"a/b/string\"\n" 5946 "#include \"string.h\"\n" 5947 "#include \"string.h\"\n" 5948 "#include <a-a>\n" 5949 "#include < path with space >\n" 5950 "#include_next <test.h>" 5951 "#include \"abc.h\" // this is included for ABC\n" 5952 "#include \"some long include\" // with a comment\n" 5953 "#include \"some very long include paaaaaaaaaaaaaaaaaaaaaaath\"", 5954 getLLVMStyleWithColumns(35)); 5955 EXPECT_EQ("#include \"a.h\"", format("#include \"a.h\"")); 5956 EXPECT_EQ("#include <a>", format("#include<a>")); 5957 5958 verifyFormat("#import <string>"); 5959 verifyFormat("#import <a/b/c.h>"); 5960 verifyFormat("#import \"a/b/string\""); 5961 verifyFormat("#import \"string.h\""); 5962 verifyFormat("#import \"string.h\""); 5963 verifyFormat("#if __has_include(<strstream>)\n" 5964 "#include <strstream>\n" 5965 "#endif"); 5966 5967 verifyFormat("#define MY_IMPORT <a/b>"); 5968 5969 // Protocol buffer definition or missing "#". 5970 verifyFormat("import \"aaaaaaaaaaaaaaaaa/aaaaaaaaaaaaaaa\";", 5971 getLLVMStyleWithColumns(30)); 5972 5973 FormatStyle Style = getLLVMStyle(); 5974 Style.AlwaysBreakBeforeMultilineStrings = true; 5975 Style.ColumnLimit = 0; 5976 verifyFormat("#import \"abc.h\"", Style); 5977 5978 // But 'import' might also be a regular C++ namespace. 5979 verifyFormat("import::SomeFunction(aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5980 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 5981 } 5982 5983 //===----------------------------------------------------------------------===// 5984 // Error recovery tests. 5985 //===----------------------------------------------------------------------===// 5986 5987 TEST_F(FormatTest, IncompleteParameterLists) { 5988 FormatStyle NoBinPacking = getLLVMStyle(); 5989 NoBinPacking.BinPackParameters = false; 5990 verifyFormat("void aaaaaaaaaaaaaaaaaa(int level,\n" 5991 " double *min_x,\n" 5992 " double *max_x,\n" 5993 " double *min_y,\n" 5994 " double *max_y,\n" 5995 " double *min_z,\n" 5996 " double *max_z, ) {}", 5997 NoBinPacking); 5998 } 5999 6000 TEST_F(FormatTest, IncorrectCodeTrailingStuff) { 6001 verifyFormat("void f() { return; }\n42"); 6002 verifyFormat("void f() {\n" 6003 " if (0)\n" 6004 " return;\n" 6005 "}\n" 6006 "42"); 6007 verifyFormat("void f() { return }\n42"); 6008 verifyFormat("void f() {\n" 6009 " if (0)\n" 6010 " return\n" 6011 "}\n" 6012 "42"); 6013 } 6014 6015 TEST_F(FormatTest, IncorrectCodeMissingSemicolon) { 6016 EXPECT_EQ("void f() { return }", format("void f ( ) { return }")); 6017 EXPECT_EQ("void f() {\n" 6018 " if (a)\n" 6019 " return\n" 6020 "}", 6021 format("void f ( ) { if ( a ) return }")); 6022 EXPECT_EQ("namespace N {\n" 6023 "void f()\n" 6024 "}", 6025 format("namespace N { void f() }")); 6026 EXPECT_EQ("namespace N {\n" 6027 "void f() {}\n" 6028 "void g()\n" 6029 "}", 6030 format("namespace N { void f( ) { } void g( ) }")); 6031 } 6032 6033 TEST_F(FormatTest, IndentationWithinColumnLimitNotPossible) { 6034 verifyFormat("int aaaaaaaa =\n" 6035 " // Overlylongcomment\n" 6036 " b;", 6037 getLLVMStyleWithColumns(20)); 6038 verifyFormat("function(\n" 6039 " ShortArgument,\n" 6040 " LoooooooooooongArgument);\n", 6041 getLLVMStyleWithColumns(20)); 6042 } 6043 6044 TEST_F(FormatTest, IncorrectAccessSpecifier) { 6045 verifyFormat("public:"); 6046 verifyFormat("class A {\n" 6047 "public\n" 6048 " void f() {}\n" 6049 "};"); 6050 verifyFormat("public\n" 6051 "int qwerty;"); 6052 verifyFormat("public\n" 6053 "B {}"); 6054 verifyFormat("public\n" 6055 "{}"); 6056 verifyFormat("public\n" 6057 "B { int x; }"); 6058 } 6059 6060 TEST_F(FormatTest, IncorrectCodeUnbalancedBraces) { 6061 verifyFormat("{"); 6062 verifyFormat("#})"); 6063 verifyNoCrash("(/**/[:!] ?[)."); 6064 } 6065 6066 TEST_F(FormatTest, IncorrectCodeDoNoWhile) { 6067 verifyFormat("do {\n}"); 6068 verifyFormat("do {\n}\n" 6069 "f();"); 6070 verifyFormat("do {\n}\n" 6071 "wheeee(fun);"); 6072 verifyFormat("do {\n" 6073 " f();\n" 6074 "}"); 6075 } 6076 6077 TEST_F(FormatTest, IncorrectCodeMissingParens) { 6078 verifyFormat("if {\n foo;\n foo();\n}"); 6079 verifyFormat("switch {\n foo;\n foo();\n}"); 6080 verifyIncompleteFormat("for {\n foo;\n foo();\n}"); 6081 verifyFormat("while {\n foo;\n foo();\n}"); 6082 verifyFormat("do {\n foo;\n foo();\n} while;"); 6083 } 6084 6085 TEST_F(FormatTest, DoesNotTouchUnwrappedLinesWithErrors) { 6086 verifyIncompleteFormat("namespace {\n" 6087 "class Foo { Foo (\n" 6088 "};\n" 6089 "} // comment"); 6090 } 6091 6092 TEST_F(FormatTest, IncorrectCodeErrorDetection) { 6093 EXPECT_EQ("{\n {}\n", format("{\n{\n}\n")); 6094 EXPECT_EQ("{\n {}\n", format("{\n {\n}\n")); 6095 EXPECT_EQ("{\n {}\n", format("{\n {\n }\n")); 6096 EXPECT_EQ("{\n {}\n}\n}\n", format("{\n {\n }\n }\n}\n")); 6097 6098 EXPECT_EQ("{\n" 6099 " {\n" 6100 " breakme(\n" 6101 " qwe);\n" 6102 " }\n", 6103 format("{\n" 6104 " {\n" 6105 " breakme(qwe);\n" 6106 "}\n", 6107 getLLVMStyleWithColumns(10))); 6108 } 6109 6110 TEST_F(FormatTest, LayoutCallsInsideBraceInitializers) { 6111 verifyFormat("int x = {\n" 6112 " avariable,\n" 6113 " b(alongervariable)};", 6114 getLLVMStyleWithColumns(25)); 6115 } 6116 6117 TEST_F(FormatTest, LayoutBraceInitializersInReturnStatement) { 6118 verifyFormat("return (a)(b){1, 2, 3};"); 6119 } 6120 6121 TEST_F(FormatTest, LayoutCxx11BraceInitializers) { 6122 verifyFormat("vector<int> x{1, 2, 3, 4};"); 6123 verifyFormat("vector<int> x{\n" 6124 " 1, 2, 3, 4,\n" 6125 "};"); 6126 verifyFormat("vector<T> x{{}, {}, {}, {}};"); 6127 verifyFormat("f({1, 2});"); 6128 verifyFormat("auto v = Foo{-1};"); 6129 verifyFormat("f({1, 2}, {{2, 3}, {4, 5}}, c, {d});"); 6130 verifyFormat("Class::Class : member{1, 2, 3} {}"); 6131 verifyFormat("new vector<int>{1, 2, 3};"); 6132 verifyFormat("new int[3]{1, 2, 3};"); 6133 verifyFormat("new int{1};"); 6134 verifyFormat("return {arg1, arg2};"); 6135 verifyFormat("return {arg1, SomeType{parameter}};"); 6136 verifyFormat("int count = set<int>{f(), g(), h()}.size();"); 6137 verifyFormat("new T{arg1, arg2};"); 6138 verifyFormat("f(MyMap[{composite, key}]);"); 6139 verifyFormat("class Class {\n" 6140 " T member = {arg1, arg2};\n" 6141 "};"); 6142 verifyFormat("vector<int> foo = {::SomeGlobalFunction()};"); 6143 verifyFormat("static_assert(std::is_integral<int>{} + 0, \"\");"); 6144 verifyFormat("int a = std::is_integral<int>{} + 0;"); 6145 6146 verifyFormat("int foo(int i) { return fo1{}(i); }"); 6147 verifyFormat("int foo(int i) { return fo1{}(i); }"); 6148 verifyFormat("auto i = decltype(x){};"); 6149 verifyFormat("std::vector<int> v = {1, 0 /* comment */};"); 6150 verifyFormat("Node n{1, Node{1000}, //\n" 6151 " 2};"); 6152 verifyFormat("Aaaa aaaaaaa{\n" 6153 " {\n" 6154 " aaaa,\n" 6155 " },\n" 6156 "};"); 6157 verifyFormat("class C : public D {\n" 6158 " SomeClass SC{2};\n" 6159 "};"); 6160 verifyFormat("class C : public A {\n" 6161 " class D : public B {\n" 6162 " void f() { int i{2}; }\n" 6163 " };\n" 6164 "};"); 6165 verifyFormat("#define A {a, a},"); 6166 6167 // In combination with BinPackArguments = false. 6168 FormatStyle NoBinPacking = getLLVMStyle(); 6169 NoBinPacking.BinPackArguments = false; 6170 verifyFormat("const Aaaaaa aaaaa = {aaaaa,\n" 6171 " bbbbb,\n" 6172 " ccccc,\n" 6173 " ddddd,\n" 6174 " eeeee,\n" 6175 " ffffff,\n" 6176 " ggggg,\n" 6177 " hhhhhh,\n" 6178 " iiiiii,\n" 6179 " jjjjjj,\n" 6180 " kkkkkk};", 6181 NoBinPacking); 6182 verifyFormat("const Aaaaaa aaaaa = {\n" 6183 " aaaaa,\n" 6184 " bbbbb,\n" 6185 " ccccc,\n" 6186 " ddddd,\n" 6187 " eeeee,\n" 6188 " ffffff,\n" 6189 " ggggg,\n" 6190 " hhhhhh,\n" 6191 " iiiiii,\n" 6192 " jjjjjj,\n" 6193 " kkkkkk,\n" 6194 "};", 6195 NoBinPacking); 6196 verifyFormat( 6197 "const Aaaaaa aaaaa = {\n" 6198 " aaaaa, bbbbb, ccccc, ddddd, eeeee, ffffff, ggggg, hhhhhh,\n" 6199 " iiiiii, jjjjjj, kkkkkk, aaaaa, bbbbb, ccccc, ddddd, eeeee,\n" 6200 " ffffff, ggggg, hhhhhh, iiiiii, jjjjjj, kkkkkk,\n" 6201 "};", 6202 NoBinPacking); 6203 6204 // FIXME: The alignment of these trailing comments might be bad. Then again, 6205 // this might be utterly useless in real code. 6206 verifyFormat("Constructor::Constructor()\n" 6207 " : some_value{ //\n" 6208 " aaaaaaa, //\n" 6209 " bbbbbbb} {}"); 6210 6211 // In braced lists, the first comment is always assumed to belong to the 6212 // first element. Thus, it can be moved to the next or previous line as 6213 // appropriate. 6214 EXPECT_EQ("function({// First element:\n" 6215 " 1,\n" 6216 " // Second element:\n" 6217 " 2});", 6218 format("function({\n" 6219 " // First element:\n" 6220 " 1,\n" 6221 " // Second element:\n" 6222 " 2});")); 6223 EXPECT_EQ("std::vector<int> MyNumbers{\n" 6224 " // First element:\n" 6225 " 1,\n" 6226 " // Second element:\n" 6227 " 2};", 6228 format("std::vector<int> MyNumbers{// First element:\n" 6229 " 1,\n" 6230 " // Second element:\n" 6231 " 2};", 6232 getLLVMStyleWithColumns(30))); 6233 // A trailing comma should still lead to an enforced line break. 6234 EXPECT_EQ("vector<int> SomeVector = {\n" 6235 " // aaa\n" 6236 " 1, 2,\n" 6237 "};", 6238 format("vector<int> SomeVector = { // aaa\n" 6239 " 1, 2, };")); 6240 6241 FormatStyle ExtraSpaces = getLLVMStyle(); 6242 ExtraSpaces.Cpp11BracedListStyle = false; 6243 ExtraSpaces.ColumnLimit = 75; 6244 verifyFormat("vector<int> x{ 1, 2, 3, 4 };", ExtraSpaces); 6245 verifyFormat("vector<T> x{ {}, {}, {}, {} };", ExtraSpaces); 6246 verifyFormat("f({ 1, 2 });", ExtraSpaces); 6247 verifyFormat("auto v = Foo{ 1 };", ExtraSpaces); 6248 verifyFormat("f({ 1, 2 }, { { 2, 3 }, { 4, 5 } }, c, { d });", ExtraSpaces); 6249 verifyFormat("Class::Class : member{ 1, 2, 3 } {}", ExtraSpaces); 6250 verifyFormat("new vector<int>{ 1, 2, 3 };", ExtraSpaces); 6251 verifyFormat("new int[3]{ 1, 2, 3 };", ExtraSpaces); 6252 verifyFormat("return { arg1, arg2 };", ExtraSpaces); 6253 verifyFormat("return { arg1, SomeType{ parameter } };", ExtraSpaces); 6254 verifyFormat("int count = set<int>{ f(), g(), h() }.size();", ExtraSpaces); 6255 verifyFormat("new T{ arg1, arg2 };", ExtraSpaces); 6256 verifyFormat("f(MyMap[{ composite, key }]);", ExtraSpaces); 6257 verifyFormat("class Class {\n" 6258 " T member = { arg1, arg2 };\n" 6259 "};", 6260 ExtraSpaces); 6261 verifyFormat( 6262 "foo = aaaaaaaaaaa ? vector<int>{ aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 6263 " aaaaaaaaaaaaaaaaaaaa, aaaaa }\n" 6264 " : vector<int>{ bbbbbbbbbbbbbbbbbbbbbbbbbbb,\n" 6265 " bbbbbbbbbbbbbbbbbbbb, bbbbb };", 6266 ExtraSpaces); 6267 verifyFormat("DoSomethingWithVector({} /* No data */);", ExtraSpaces); 6268 verifyFormat("DoSomethingWithVector({ {} /* No data */ }, { { 1, 2 } });", 6269 ExtraSpaces); 6270 verifyFormat( 6271 "someFunction(OtherParam,\n" 6272 " BracedList{ // comment 1 (Forcing interesting break)\n" 6273 " param1, param2,\n" 6274 " // comment 2\n" 6275 " param3, param4 });", 6276 ExtraSpaces); 6277 verifyFormat( 6278 "std::this_thread::sleep_for(\n" 6279 " std::chrono::nanoseconds{ std::chrono::seconds{ 1 } } / 5);", 6280 ExtraSpaces); 6281 verifyFormat("std::vector<MyValues> aaaaaaaaaaaaaaaaaaa{\n" 6282 " aaaaaaa,\n" 6283 " aaaaaaaaaa,\n" 6284 " aaaaa,\n" 6285 " aaaaaaaaaaaaaaa,\n" 6286 " aaa,\n" 6287 " aaaaaaaaaa,\n" 6288 " a,\n" 6289 " aaaaaaaaaaaaaaaaaaaaa,\n" 6290 " aaaaaaaaaaaa,\n" 6291 " aaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaa,\n" 6292 " aaaaaaa,\n" 6293 " a};"); 6294 verifyFormat("vector<int> foo = { ::SomeGlobalFunction() };", ExtraSpaces); 6295 } 6296 6297 TEST_F(FormatTest, FormatsBracedListsInColumnLayout) { 6298 verifyFormat("vector<int> x = {1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6299 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6300 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6301 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6302 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6303 " 1, 22, 333, 4444, 55555, 666666, 7777777};"); 6304 verifyFormat("vector<int> x = {1, 22, 333, 4444, 55555, 666666, 7777777, //\n" 6305 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6306 " 1, 22, 333, 4444, 55555, //\n" 6307 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6308 " 1, 22, 333, 4444, 55555, 666666, 7777777};"); 6309 verifyFormat( 6310 "vector<int> x = {1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6311 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6312 " 1, 22, 333, 4444, 55555, 666666, // comment\n" 6313 " 7777777, 1, 22, 333, 4444, 55555, 666666,\n" 6314 " 7777777, 1, 22, 333, 4444, 55555, 666666,\n" 6315 " 7777777, 1, 22, 333, 4444, 55555, 666666,\n" 6316 " 7777777};"); 6317 verifyFormat("static const uint16_t CallerSavedRegs64Bittttt[] = {\n" 6318 " X86::RAX, X86::RDX, X86::RCX, X86::RSI, X86::RDI,\n" 6319 " X86::R8, X86::R9, X86::R10, X86::R11, 0};"); 6320 verifyFormat("static const uint16_t CallerSavedRegs64Bittttt[] = {\n" 6321 " X86::RAX, X86::RDX, X86::RCX, X86::RSI, X86::RDI,\n" 6322 " // Separating comment.\n" 6323 " X86::R8, X86::R9, X86::R10, X86::R11, 0};"); 6324 verifyFormat("static const uint16_t CallerSavedRegs64Bittttt[] = {\n" 6325 " // Leading comment\n" 6326 " X86::RAX, X86::RDX, X86::RCX, X86::RSI, X86::RDI,\n" 6327 " X86::R8, X86::R9, X86::R10, X86::R11, 0};"); 6328 verifyFormat("vector<int> x = {1, 1, 1, 1,\n" 6329 " 1, 1, 1, 1};", 6330 getLLVMStyleWithColumns(39)); 6331 verifyFormat("vector<int> x = {1, 1, 1, 1,\n" 6332 " 1, 1, 1, 1};", 6333 getLLVMStyleWithColumns(38)); 6334 verifyFormat("vector<int> aaaaaaaaaaaaaaaaaaaaaa = {\n" 6335 " 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1};", 6336 getLLVMStyleWithColumns(43)); 6337 verifyFormat( 6338 "static unsigned SomeValues[10][3] = {\n" 6339 " {1, 4, 0}, {4, 9, 0}, {4, 5, 9}, {8, 5, 4}, {1, 8, 4},\n" 6340 " {10, 1, 6}, {11, 0, 9}, {2, 11, 9}, {5, 2, 9}, {11, 2, 7}};"); 6341 verifyFormat("static auto fields = new vector<string>{\n" 6342 " \"aaaaaaaaaaaaa\",\n" 6343 " \"aaaaaaaaaaaaa\",\n" 6344 " \"aaaaaaaaaaaa\",\n" 6345 " \"aaaaaaaaaaaaaa\",\n" 6346 " \"aaaaaaaaaaaaaaaaaaaaaaaaa\",\n" 6347 " \"aaaaaaaaaaaa\",\n" 6348 " \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\",\n" 6349 "};"); 6350 verifyFormat("vector<int> x = {1, 2, 3, 4, aaaaaaaaaaaaaaaaa, 6};"); 6351 verifyFormat("vector<int> x = {1, aaaaaaaaaaaaaaaaaaaaaa,\n" 6352 " 2, bbbbbbbbbbbbbbbbbbbbbb,\n" 6353 " 3, cccccccccccccccccccccc};", 6354 getLLVMStyleWithColumns(60)); 6355 6356 // Trailing commas. 6357 verifyFormat("vector<int> x = {\n" 6358 " 1, 1, 1, 1, 1, 1, 1, 1,\n" 6359 "};", 6360 getLLVMStyleWithColumns(39)); 6361 verifyFormat("vector<int> x = {\n" 6362 " 1, 1, 1, 1, 1, 1, 1, 1, //\n" 6363 "};", 6364 getLLVMStyleWithColumns(39)); 6365 verifyFormat("vector<int> x = {1, 1, 1, 1,\n" 6366 " 1, 1, 1, 1,\n" 6367 " /**/ /**/};", 6368 getLLVMStyleWithColumns(39)); 6369 6370 // Trailing comment in the first line. 6371 verifyFormat("vector<int> iiiiiiiiiiiiiii = { //\n" 6372 " 1111111111, 2222222222, 33333333333, 4444444444, //\n" 6373 " 111111111, 222222222, 3333333333, 444444444, //\n" 6374 " 11111111, 22222222, 333333333, 44444444};"); 6375 // Trailing comment in the last line. 6376 verifyFormat("int aaaaa[] = {\n" 6377 " 1, 2, 3, // comment\n" 6378 " 4, 5, 6 // comment\n" 6379 "};"); 6380 6381 // With nested lists, we should either format one item per line or all nested 6382 // lists one on line. 6383 // FIXME: For some nested lists, we can do better. 6384 verifyFormat("return {{aaaaaaaaaaaaaaaaaaaaa},\n" 6385 " {aaaaaaaaaaaaaaaaaaa},\n" 6386 " {aaaaaaaaaaaaaaaaaaaaa},\n" 6387 " {aaaaaaaaaaaaaaaaa}};", 6388 getLLVMStyleWithColumns(60)); 6389 verifyFormat( 6390 "SomeStruct my_struct_array = {\n" 6391 " {aaaaaa, aaaaaaaa, aaaaaaaaaa, aaaaaaaaa, aaaaaaaaa, aaaaaaaaaa,\n" 6392 " aaaaaaaaaaaaa, aaaaaaa, aaa},\n" 6393 " {aaa, aaa},\n" 6394 " {aaa, aaa},\n" 6395 " {aaaa, aaaa, aaaa, aaaa, aaaa, aaaa, aaaa, aaa},\n" 6396 " {aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaa,\n" 6397 " aaaaaaaaaaaa, a, aaaaaaaaaa, aaaaaaaaa, aaa}};"); 6398 6399 // No column layout should be used here. 6400 verifyFormat("aaaaaaaaaaaaaaa = {aaaaaaaaaaaaaaaaaaaaaaaaaaa, 0, 0,\n" 6401 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb};"); 6402 6403 verifyNoCrash("a<,"); 6404 } 6405 6406 TEST_F(FormatTest, PullTrivialFunctionDefinitionsIntoSingleLine) { 6407 FormatStyle DoNotMerge = getLLVMStyle(); 6408 DoNotMerge.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_None; 6409 6410 verifyFormat("void f() { return 42; }"); 6411 verifyFormat("void f() {\n" 6412 " return 42;\n" 6413 "}", 6414 DoNotMerge); 6415 verifyFormat("void f() {\n" 6416 " // Comment\n" 6417 "}"); 6418 verifyFormat("{\n" 6419 "#error {\n" 6420 " int a;\n" 6421 "}"); 6422 verifyFormat("{\n" 6423 " int a;\n" 6424 "#error {\n" 6425 "}"); 6426 verifyFormat("void f() {} // comment"); 6427 verifyFormat("void f() { int a; } // comment"); 6428 verifyFormat("void f() {\n" 6429 "} // comment", 6430 DoNotMerge); 6431 verifyFormat("void f() {\n" 6432 " int a;\n" 6433 "} // comment", 6434 DoNotMerge); 6435 verifyFormat("void f() {\n" 6436 "} // comment", 6437 getLLVMStyleWithColumns(15)); 6438 6439 verifyFormat("void f() { return 42; }", getLLVMStyleWithColumns(23)); 6440 verifyFormat("void f() {\n return 42;\n}", getLLVMStyleWithColumns(22)); 6441 6442 verifyFormat("void f() {}", getLLVMStyleWithColumns(11)); 6443 verifyFormat("void f() {\n}", getLLVMStyleWithColumns(10)); 6444 verifyFormat("class C {\n" 6445 " C()\n" 6446 " : iiiiiiii(nullptr),\n" 6447 " kkkkkkk(nullptr),\n" 6448 " mmmmmmm(nullptr),\n" 6449 " nnnnnnn(nullptr) {}\n" 6450 "};", 6451 getGoogleStyle()); 6452 6453 FormatStyle NoColumnLimit = getLLVMStyle(); 6454 NoColumnLimit.ColumnLimit = 0; 6455 EXPECT_EQ("A() : b(0) {}", format("A():b(0){}", NoColumnLimit)); 6456 EXPECT_EQ("class C {\n" 6457 " A() : b(0) {}\n" 6458 "};", 6459 format("class C{A():b(0){}};", NoColumnLimit)); 6460 EXPECT_EQ("A()\n" 6461 " : b(0) {\n" 6462 "}", 6463 format("A()\n:b(0)\n{\n}", NoColumnLimit)); 6464 6465 FormatStyle DoNotMergeNoColumnLimit = NoColumnLimit; 6466 DoNotMergeNoColumnLimit.AllowShortFunctionsOnASingleLine = 6467 FormatStyle::SFS_None; 6468 EXPECT_EQ("A()\n" 6469 " : b(0) {\n" 6470 "}", 6471 format("A():b(0){}", DoNotMergeNoColumnLimit)); 6472 EXPECT_EQ("A()\n" 6473 " : b(0) {\n" 6474 "}", 6475 format("A()\n:b(0)\n{\n}", DoNotMergeNoColumnLimit)); 6476 6477 verifyFormat("#define A \\\n" 6478 " void f() { \\\n" 6479 " int i; \\\n" 6480 " }", 6481 getLLVMStyleWithColumns(20)); 6482 verifyFormat("#define A \\\n" 6483 " void f() { int i; }", 6484 getLLVMStyleWithColumns(21)); 6485 verifyFormat("#define A \\\n" 6486 " void f() { \\\n" 6487 " int i; \\\n" 6488 " } \\\n" 6489 " int j;", 6490 getLLVMStyleWithColumns(22)); 6491 verifyFormat("#define A \\\n" 6492 " void f() { int i; } \\\n" 6493 " int j;", 6494 getLLVMStyleWithColumns(23)); 6495 } 6496 6497 TEST_F(FormatTest, PullInlineFunctionDefinitionsIntoSingleLine) { 6498 FormatStyle MergeInlineOnly = getLLVMStyle(); 6499 MergeInlineOnly.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Inline; 6500 verifyFormat("class C {\n" 6501 " int f() { return 42; }\n" 6502 "};", 6503 MergeInlineOnly); 6504 verifyFormat("int f() {\n" 6505 " return 42;\n" 6506 "}", 6507 MergeInlineOnly); 6508 } 6509 6510 TEST_F(FormatTest, UnderstandContextOfRecordTypeKeywords) { 6511 // Elaborate type variable declarations. 6512 verifyFormat("struct foo a = {bar};\nint n;"); 6513 verifyFormat("class foo a = {bar};\nint n;"); 6514 verifyFormat("union foo a = {bar};\nint n;"); 6515 6516 // Elaborate types inside function definitions. 6517 verifyFormat("struct foo f() {}\nint n;"); 6518 verifyFormat("class foo f() {}\nint n;"); 6519 verifyFormat("union foo f() {}\nint n;"); 6520 6521 // Templates. 6522 verifyFormat("template <class X> void f() {}\nint n;"); 6523 verifyFormat("template <struct X> void f() {}\nint n;"); 6524 verifyFormat("template <union X> void f() {}\nint n;"); 6525 6526 // Actual definitions... 6527 verifyFormat("struct {\n} n;"); 6528 verifyFormat( 6529 "template <template <class T, class Y>, class Z> class X {\n} n;"); 6530 verifyFormat("union Z {\n int n;\n} x;"); 6531 verifyFormat("class MACRO Z {\n} n;"); 6532 verifyFormat("class MACRO(X) Z {\n} n;"); 6533 verifyFormat("class __attribute__(X) Z {\n} n;"); 6534 verifyFormat("class __declspec(X) Z {\n} n;"); 6535 verifyFormat("class A##B##C {\n} n;"); 6536 verifyFormat("class alignas(16) Z {\n} n;"); 6537 verifyFormat("class MACRO(X) alignas(16) Z {\n} n;"); 6538 verifyFormat("class MACROA MACRO(X) Z {\n} n;"); 6539 6540 // Redefinition from nested context: 6541 verifyFormat("class A::B::C {\n} n;"); 6542 6543 // Template definitions. 6544 verifyFormat( 6545 "template <typename F>\n" 6546 "Matcher(const Matcher<F> &Other,\n" 6547 " typename enable_if_c<is_base_of<F, T>::value &&\n" 6548 " !is_same<F, T>::value>::type * = 0)\n" 6549 " : Implementation(new ImplicitCastMatcher<F>(Other)) {}"); 6550 6551 // FIXME: This is still incorrectly handled at the formatter side. 6552 verifyFormat("template <> struct X < 15, i<3 && 42 < 50 && 33 < 28> {};"); 6553 verifyFormat("int i = SomeFunction(a<b, a> b);"); 6554 6555 // FIXME: 6556 // This now gets parsed incorrectly as class definition. 6557 // verifyFormat("class A<int> f() {\n}\nint n;"); 6558 6559 // Elaborate types where incorrectly parsing the structural element would 6560 // break the indent. 6561 verifyFormat("if (true)\n" 6562 " class X x;\n" 6563 "else\n" 6564 " f();\n"); 6565 6566 // This is simply incomplete. Formatting is not important, but must not crash. 6567 verifyFormat("class A:"); 6568 } 6569 6570 TEST_F(FormatTest, DoNotInterfereWithErrorAndWarning) { 6571 EXPECT_EQ("#error Leave all white!!!!! space* alone!\n", 6572 format("#error Leave all white!!!!! space* alone!\n")); 6573 EXPECT_EQ( 6574 "#warning Leave all white!!!!! space* alone!\n", 6575 format("#warning Leave all white!!!!! space* alone!\n")); 6576 EXPECT_EQ("#error 1", format(" # error 1")); 6577 EXPECT_EQ("#warning 1", format(" # warning 1")); 6578 } 6579 6580 TEST_F(FormatTest, FormatHashIfExpressions) { 6581 verifyFormat("#if AAAA && BBBB"); 6582 verifyFormat("#if (AAAA && BBBB)"); 6583 verifyFormat("#elif (AAAA && BBBB)"); 6584 // FIXME: Come up with a better indentation for #elif. 6585 verifyFormat( 6586 "#if !defined(AAAAAAA) && (defined CCCCCC || defined DDDDDD) && \\\n" 6587 " defined(BBBBBBBB)\n" 6588 "#elif !defined(AAAAAA) && (defined CCCCC || defined DDDDDD) && \\\n" 6589 " defined(BBBBBBBB)\n" 6590 "#endif", 6591 getLLVMStyleWithColumns(65)); 6592 } 6593 6594 TEST_F(FormatTest, MergeHandlingInTheFaceOfPreprocessorDirectives) { 6595 FormatStyle AllowsMergedIf = getGoogleStyle(); 6596 AllowsMergedIf.AllowShortIfStatementsOnASingleLine = true; 6597 verifyFormat("void f() { f(); }\n#error E", AllowsMergedIf); 6598 verifyFormat("if (true) return 42;\n#error E", AllowsMergedIf); 6599 verifyFormat("if (true)\n#error E\n return 42;", AllowsMergedIf); 6600 EXPECT_EQ("if (true) return 42;", 6601 format("if (true)\nreturn 42;", AllowsMergedIf)); 6602 FormatStyle ShortMergedIf = AllowsMergedIf; 6603 ShortMergedIf.ColumnLimit = 25; 6604 verifyFormat("#define A \\\n" 6605 " if (true) return 42;", 6606 ShortMergedIf); 6607 verifyFormat("#define A \\\n" 6608 " f(); \\\n" 6609 " if (true)\n" 6610 "#define B", 6611 ShortMergedIf); 6612 verifyFormat("#define A \\\n" 6613 " f(); \\\n" 6614 " if (true)\n" 6615 "g();", 6616 ShortMergedIf); 6617 verifyFormat("{\n" 6618 "#ifdef A\n" 6619 " // Comment\n" 6620 " if (true) continue;\n" 6621 "#endif\n" 6622 " // Comment\n" 6623 " if (true) continue;\n" 6624 "}", 6625 ShortMergedIf); 6626 ShortMergedIf.ColumnLimit = 29; 6627 verifyFormat("#define A \\\n" 6628 " if (aaaaaaaaaa) return 1; \\\n" 6629 " return 2;", 6630 ShortMergedIf); 6631 ShortMergedIf.ColumnLimit = 28; 6632 verifyFormat("#define A \\\n" 6633 " if (aaaaaaaaaa) \\\n" 6634 " return 1; \\\n" 6635 " return 2;", 6636 ShortMergedIf); 6637 } 6638 6639 TEST_F(FormatTest, BlockCommentsInControlLoops) { 6640 verifyFormat("if (0) /* a comment in a strange place */ {\n" 6641 " f();\n" 6642 "}"); 6643 verifyFormat("if (0) /* a comment in a strange place */ {\n" 6644 " f();\n" 6645 "} /* another comment */ else /* comment #3 */ {\n" 6646 " g();\n" 6647 "}"); 6648 verifyFormat("while (0) /* a comment in a strange place */ {\n" 6649 " f();\n" 6650 "}"); 6651 verifyFormat("for (;;) /* a comment in a strange place */ {\n" 6652 " f();\n" 6653 "}"); 6654 verifyFormat("do /* a comment in a strange place */ {\n" 6655 " f();\n" 6656 "} /* another comment */ while (0);"); 6657 } 6658 6659 TEST_F(FormatTest, BlockComments) { 6660 EXPECT_EQ("/* */ /* */ /* */\n/* */ /* */ /* */", 6661 format("/* *//* */ /* */\n/* *//* */ /* */")); 6662 EXPECT_EQ("/* */ a /* */ b;", format(" /* */ a/* */ b;")); 6663 EXPECT_EQ("#define A /*123*/ \\\n" 6664 " b\n" 6665 "/* */\n" 6666 "someCall(\n" 6667 " parameter);", 6668 format("#define A /*123*/ b\n" 6669 "/* */\n" 6670 "someCall(parameter);", 6671 getLLVMStyleWithColumns(15))); 6672 6673 EXPECT_EQ("#define A\n" 6674 "/* */ someCall(\n" 6675 " parameter);", 6676 format("#define A\n" 6677 "/* */someCall(parameter);", 6678 getLLVMStyleWithColumns(15))); 6679 EXPECT_EQ("/*\n**\n*/", format("/*\n**\n*/")); 6680 EXPECT_EQ("/*\n" 6681 "*\n" 6682 " * aaaaaa\n" 6683 " * aaaaaa\n" 6684 "*/", 6685 format("/*\n" 6686 "*\n" 6687 " * aaaaaa aaaaaa\n" 6688 "*/", 6689 getLLVMStyleWithColumns(10))); 6690 EXPECT_EQ("/*\n" 6691 "**\n" 6692 "* aaaaaa\n" 6693 "*aaaaaa\n" 6694 "*/", 6695 format("/*\n" 6696 "**\n" 6697 "* aaaaaa aaaaaa\n" 6698 "*/", 6699 getLLVMStyleWithColumns(10))); 6700 6701 FormatStyle NoBinPacking = getLLVMStyle(); 6702 NoBinPacking.BinPackParameters = false; 6703 EXPECT_EQ("someFunction(1, /* comment 1 */\n" 6704 " 2, /* comment 2 */\n" 6705 " 3, /* comment 3 */\n" 6706 " aaaa,\n" 6707 " bbbb);", 6708 format("someFunction (1, /* comment 1 */\n" 6709 " 2, /* comment 2 */ \n" 6710 " 3, /* comment 3 */\n" 6711 "aaaa, bbbb );", 6712 NoBinPacking)); 6713 verifyFormat( 6714 "bool aaaaaaaaaaaaa = /* comment: */ aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 6715 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 6716 EXPECT_EQ( 6717 "bool aaaaaaaaaaaaa = /* trailing comment */\n" 6718 " aaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 6719 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaa;", 6720 format( 6721 "bool aaaaaaaaaaaaa = /* trailing comment */\n" 6722 " aaaaaaaaaaaaaaaaaaaaaaaaaaa||aaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 6723 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaa;")); 6724 EXPECT_EQ( 6725 "int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa; /* comment */\n" 6726 "int bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb; /* comment */\n" 6727 "int cccccccccccccccccccccccccccccc; /* comment */\n", 6728 format("int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa; /* comment */\n" 6729 "int bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb; /* comment */\n" 6730 "int cccccccccccccccccccccccccccccc; /* comment */\n")); 6731 6732 verifyFormat("void f(int * /* unused */) {}"); 6733 6734 EXPECT_EQ("/*\n" 6735 " **\n" 6736 " */", 6737 format("/*\n" 6738 " **\n" 6739 " */")); 6740 EXPECT_EQ("/*\n" 6741 " *q\n" 6742 " */", 6743 format("/*\n" 6744 " *q\n" 6745 " */")); 6746 EXPECT_EQ("/*\n" 6747 " * q\n" 6748 " */", 6749 format("/*\n" 6750 " * q\n" 6751 " */")); 6752 EXPECT_EQ("/*\n" 6753 " **/", 6754 format("/*\n" 6755 " **/")); 6756 EXPECT_EQ("/*\n" 6757 " ***/", 6758 format("/*\n" 6759 " ***/")); 6760 } 6761 6762 TEST_F(FormatTest, BlockCommentsInMacros) { 6763 EXPECT_EQ("#define A \\\n" 6764 " { \\\n" 6765 " /* one line */ \\\n" 6766 " someCall();", 6767 format("#define A { \\\n" 6768 " /* one line */ \\\n" 6769 " someCall();", 6770 getLLVMStyleWithColumns(20))); 6771 EXPECT_EQ("#define A \\\n" 6772 " { \\\n" 6773 " /* previous */ \\\n" 6774 " /* one line */ \\\n" 6775 " someCall();", 6776 format("#define A { \\\n" 6777 " /* previous */ \\\n" 6778 " /* one line */ \\\n" 6779 " someCall();", 6780 getLLVMStyleWithColumns(20))); 6781 } 6782 6783 TEST_F(FormatTest, BlockCommentsAtEndOfLine) { 6784 EXPECT_EQ("a = {\n" 6785 " 1111 /* */\n" 6786 "};", 6787 format("a = {1111 /* */\n" 6788 "};", 6789 getLLVMStyleWithColumns(15))); 6790 EXPECT_EQ("a = {\n" 6791 " 1111 /* */\n" 6792 "};", 6793 format("a = {1111 /* */\n" 6794 "};", 6795 getLLVMStyleWithColumns(15))); 6796 6797 // FIXME: The formatting is still wrong here. 6798 EXPECT_EQ("a = {\n" 6799 " 1111 /* a\n" 6800 " */\n" 6801 "};", 6802 format("a = {1111 /* a */\n" 6803 "};", 6804 getLLVMStyleWithColumns(15))); 6805 } 6806 6807 TEST_F(FormatTest, IndentLineCommentsInStartOfBlockAtEndOfFile) { 6808 // FIXME: This is not what we want... 6809 verifyFormat("{\n" 6810 "// a" 6811 "// b"); 6812 } 6813 6814 TEST_F(FormatTest, FormatStarDependingOnContext) { 6815 verifyFormat("void f(int *a);"); 6816 verifyFormat("void f() { f(fint * b); }"); 6817 verifyFormat("class A {\n void f(int *a);\n};"); 6818 verifyFormat("class A {\n int *a;\n};"); 6819 verifyFormat("namespace a {\n" 6820 "namespace b {\n" 6821 "class A {\n" 6822 " void f() {}\n" 6823 " int *a;\n" 6824 "};\n" 6825 "}\n" 6826 "}"); 6827 } 6828 6829 TEST_F(FormatTest, SpecialTokensAtEndOfLine) { 6830 verifyFormat("while"); 6831 verifyFormat("operator"); 6832 } 6833 6834 //===----------------------------------------------------------------------===// 6835 // Objective-C tests. 6836 //===----------------------------------------------------------------------===// 6837 6838 TEST_F(FormatTest, FormatForObjectiveCMethodDecls) { 6839 verifyFormat("- (void)sendAction:(SEL)aSelector to:(BOOL)anObject;"); 6840 EXPECT_EQ("- (NSUInteger)indexOfObject:(id)anObject;", 6841 format("-(NSUInteger)indexOfObject:(id)anObject;")); 6842 EXPECT_EQ("- (NSInteger)Mthod1;", format("-(NSInteger)Mthod1;")); 6843 EXPECT_EQ("+ (id)Mthod2;", format("+(id)Mthod2;")); 6844 EXPECT_EQ("- (NSInteger)Method3:(id)anObject;", 6845 format("-(NSInteger)Method3:(id)anObject;")); 6846 EXPECT_EQ("- (NSInteger)Method4:(id)anObject;", 6847 format("-(NSInteger)Method4:(id)anObject;")); 6848 EXPECT_EQ("- (NSInteger)Method5:(id)anObject:(id)AnotherObject;", 6849 format("-(NSInteger)Method5:(id)anObject:(id)AnotherObject;")); 6850 EXPECT_EQ("- (id)Method6:(id)A:(id)B:(id)C:(id)D;", 6851 format("- (id)Method6:(id)A:(id)B:(id)C:(id)D;")); 6852 EXPECT_EQ("- (void)sendAction:(SEL)aSelector to:(id)anObject " 6853 "forAllCells:(BOOL)flag;", 6854 format("- (void)sendAction:(SEL)aSelector to:(id)anObject " 6855 "forAllCells:(BOOL)flag;")); 6856 6857 // Very long objectiveC method declaration. 6858 verifyFormat("- (void)aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa:\n" 6859 " (SoooooooooooooooooooooomeType *)bbbbbbbbbb;"); 6860 verifyFormat("- (NSUInteger)indexOfObject:(id)anObject\n" 6861 " inRange:(NSRange)range\n" 6862 " outRange:(NSRange)out_range\n" 6863 " outRange1:(NSRange)out_range1\n" 6864 " outRange2:(NSRange)out_range2\n" 6865 " outRange3:(NSRange)out_range3\n" 6866 " outRange4:(NSRange)out_range4\n" 6867 " outRange5:(NSRange)out_range5\n" 6868 " outRange6:(NSRange)out_range6\n" 6869 " outRange7:(NSRange)out_range7\n" 6870 " outRange8:(NSRange)out_range8\n" 6871 " outRange9:(NSRange)out_range9;"); 6872 6873 // When the function name has to be wrapped. 6874 FormatStyle Style = getLLVMStyle(); 6875 Style.IndentWrappedFunctionNames = false; 6876 verifyFormat("- (SomeLooooooooooooooooooooongType *)\n" 6877 "veryLooooooooooongName:(NSString)aaaaaaaaaaaaaa\n" 6878 " anotherName:(NSString)bbbbbbbbbbbbbb {\n" 6879 "}", 6880 Style); 6881 Style.IndentWrappedFunctionNames = true; 6882 verifyFormat("- (SomeLooooooooooooooooooooongType *)\n" 6883 " veryLooooooooooongName:(NSString)aaaaaaaaaaaaaa\n" 6884 " anotherName:(NSString)bbbbbbbbbbbbbb {\n" 6885 "}", 6886 Style); 6887 6888 verifyFormat("- (int)sum:(vector<int>)numbers;"); 6889 verifyGoogleFormat("- (void)setDelegate:(id<Protocol>)delegate;"); 6890 // FIXME: In LLVM style, there should be a space in front of a '<' for ObjC 6891 // protocol lists (but not for template classes): 6892 // verifyFormat("- (void)setDelegate:(id <Protocol>)delegate;"); 6893 6894 verifyFormat("- (int (*)())foo:(int (*)())f;"); 6895 verifyGoogleFormat("- (int (*)())foo:(int (*)())foo;"); 6896 6897 // If there's no return type (very rare in practice!), LLVM and Google style 6898 // agree. 6899 verifyFormat("- foo;"); 6900 verifyFormat("- foo:(int)f;"); 6901 verifyGoogleFormat("- foo:(int)foo;"); 6902 } 6903 6904 TEST_F(FormatTest, FormatObjCInterface) { 6905 verifyFormat("@interface Foo : NSObject <NSSomeDelegate> {\n" 6906 "@public\n" 6907 " int field1;\n" 6908 "@protected\n" 6909 " int field2;\n" 6910 "@private\n" 6911 " int field3;\n" 6912 "@package\n" 6913 " int field4;\n" 6914 "}\n" 6915 "+ (id)init;\n" 6916 "@end"); 6917 6918 verifyGoogleFormat("@interface Foo : NSObject<NSSomeDelegate> {\n" 6919 " @public\n" 6920 " int field1;\n" 6921 " @protected\n" 6922 " int field2;\n" 6923 " @private\n" 6924 " int field3;\n" 6925 " @package\n" 6926 " int field4;\n" 6927 "}\n" 6928 "+ (id)init;\n" 6929 "@end"); 6930 6931 verifyFormat("@interface /* wait for it */ Foo\n" 6932 "+ (id)init;\n" 6933 "// Look, a comment!\n" 6934 "- (int)answerWith:(int)i;\n" 6935 "@end"); 6936 6937 verifyFormat("@interface Foo\n" 6938 "@end\n" 6939 "@interface Bar\n" 6940 "@end"); 6941 6942 verifyFormat("@interface Foo : Bar\n" 6943 "+ (id)init;\n" 6944 "@end"); 6945 6946 verifyFormat("@interface Foo : /**/ Bar /**/ <Baz, /**/ Quux>\n" 6947 "+ (id)init;\n" 6948 "@end"); 6949 6950 verifyGoogleFormat("@interface Foo : Bar<Baz, Quux>\n" 6951 "+ (id)init;\n" 6952 "@end"); 6953 6954 verifyFormat("@interface Foo (HackStuff)\n" 6955 "+ (id)init;\n" 6956 "@end"); 6957 6958 verifyFormat("@interface Foo ()\n" 6959 "+ (id)init;\n" 6960 "@end"); 6961 6962 verifyFormat("@interface Foo (HackStuff) <MyProtocol>\n" 6963 "+ (id)init;\n" 6964 "@end"); 6965 6966 verifyGoogleFormat("@interface Foo (HackStuff)<MyProtocol>\n" 6967 "+ (id)init;\n" 6968 "@end"); 6969 6970 verifyFormat("@interface Foo {\n" 6971 " int _i;\n" 6972 "}\n" 6973 "+ (id)init;\n" 6974 "@end"); 6975 6976 verifyFormat("@interface Foo : Bar {\n" 6977 " int _i;\n" 6978 "}\n" 6979 "+ (id)init;\n" 6980 "@end"); 6981 6982 verifyFormat("@interface Foo : Bar <Baz, Quux> {\n" 6983 " int _i;\n" 6984 "}\n" 6985 "+ (id)init;\n" 6986 "@end"); 6987 6988 verifyFormat("@interface Foo (HackStuff) {\n" 6989 " int _i;\n" 6990 "}\n" 6991 "+ (id)init;\n" 6992 "@end"); 6993 6994 verifyFormat("@interface Foo () {\n" 6995 " int _i;\n" 6996 "}\n" 6997 "+ (id)init;\n" 6998 "@end"); 6999 7000 verifyFormat("@interface Foo (HackStuff) <MyProtocol> {\n" 7001 " int _i;\n" 7002 "}\n" 7003 "+ (id)init;\n" 7004 "@end"); 7005 7006 FormatStyle OnePerLine = getGoogleStyle(); 7007 OnePerLine.BinPackParameters = false; 7008 verifyFormat("@interface aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ()<\n" 7009 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 7010 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 7011 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 7012 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa> {\n" 7013 "}", 7014 OnePerLine); 7015 } 7016 7017 TEST_F(FormatTest, FormatObjCImplementation) { 7018 verifyFormat("@implementation Foo : NSObject {\n" 7019 "@public\n" 7020 " int field1;\n" 7021 "@protected\n" 7022 " int field2;\n" 7023 "@private\n" 7024 " int field3;\n" 7025 "@package\n" 7026 " int field4;\n" 7027 "}\n" 7028 "+ (id)init {\n}\n" 7029 "@end"); 7030 7031 verifyGoogleFormat("@implementation Foo : NSObject {\n" 7032 " @public\n" 7033 " int field1;\n" 7034 " @protected\n" 7035 " int field2;\n" 7036 " @private\n" 7037 " int field3;\n" 7038 " @package\n" 7039 " int field4;\n" 7040 "}\n" 7041 "+ (id)init {\n}\n" 7042 "@end"); 7043 7044 verifyFormat("@implementation Foo\n" 7045 "+ (id)init {\n" 7046 " if (true)\n" 7047 " return nil;\n" 7048 "}\n" 7049 "// Look, a comment!\n" 7050 "- (int)answerWith:(int)i {\n" 7051 " return i;\n" 7052 "}\n" 7053 "+ (int)answerWith:(int)i {\n" 7054 " return i;\n" 7055 "}\n" 7056 "@end"); 7057 7058 verifyFormat("@implementation Foo\n" 7059 "@end\n" 7060 "@implementation Bar\n" 7061 "@end"); 7062 7063 EXPECT_EQ("@implementation Foo : Bar\n" 7064 "+ (id)init {\n}\n" 7065 "- (void)foo {\n}\n" 7066 "@end", 7067 format("@implementation Foo : Bar\n" 7068 "+(id)init{}\n" 7069 "-(void)foo{}\n" 7070 "@end")); 7071 7072 verifyFormat("@implementation Foo {\n" 7073 " int _i;\n" 7074 "}\n" 7075 "+ (id)init {\n}\n" 7076 "@end"); 7077 7078 verifyFormat("@implementation Foo : Bar {\n" 7079 " int _i;\n" 7080 "}\n" 7081 "+ (id)init {\n}\n" 7082 "@end"); 7083 7084 verifyFormat("@implementation Foo (HackStuff)\n" 7085 "+ (id)init {\n}\n" 7086 "@end"); 7087 verifyFormat("@implementation ObjcClass\n" 7088 "- (void)method;\n" 7089 "{}\n" 7090 "@end"); 7091 } 7092 7093 TEST_F(FormatTest, FormatObjCProtocol) { 7094 verifyFormat("@protocol Foo\n" 7095 "@property(weak) id delegate;\n" 7096 "- (NSUInteger)numberOfThings;\n" 7097 "@end"); 7098 7099 verifyFormat("@protocol MyProtocol <NSObject>\n" 7100 "- (NSUInteger)numberOfThings;\n" 7101 "@end"); 7102 7103 verifyGoogleFormat("@protocol MyProtocol<NSObject>\n" 7104 "- (NSUInteger)numberOfThings;\n" 7105 "@end"); 7106 7107 verifyFormat("@protocol Foo;\n" 7108 "@protocol Bar;\n"); 7109 7110 verifyFormat("@protocol Foo\n" 7111 "@end\n" 7112 "@protocol Bar\n" 7113 "@end"); 7114 7115 verifyFormat("@protocol myProtocol\n" 7116 "- (void)mandatoryWithInt:(int)i;\n" 7117 "@optional\n" 7118 "- (void)optional;\n" 7119 "@required\n" 7120 "- (void)required;\n" 7121 "@optional\n" 7122 "@property(assign) int madProp;\n" 7123 "@end\n"); 7124 7125 verifyFormat("@property(nonatomic, assign, readonly)\n" 7126 " int *looooooooooooooooooooooooooooongNumber;\n" 7127 "@property(nonatomic, assign, readonly)\n" 7128 " NSString *looooooooooooooooooooooooooooongName;"); 7129 7130 verifyFormat("@implementation PR18406\n" 7131 "}\n" 7132 "@end"); 7133 } 7134 7135 TEST_F(FormatTest, FormatObjCMethodDeclarations) { 7136 verifyFormat("- (void)doSomethingWith:(GTMFoo *)theFoo\n" 7137 " rect:(NSRect)theRect\n" 7138 " interval:(float)theInterval {\n" 7139 "}"); 7140 verifyFormat("- (void)shortf:(GTMFoo *)theFoo\n" 7141 " longKeyword:(NSRect)theRect\n" 7142 " evenLongerKeyword:(float)theInterval\n" 7143 " error:(NSError **)theError {\n" 7144 "}"); 7145 verifyFormat("- (instancetype)initXxxxxx:(id<x>)x\n" 7146 " y:(id<yyyyyyyyyyyyyyyyyyyy>)y\n" 7147 " NS_DESIGNATED_INITIALIZER;", 7148 getLLVMStyleWithColumns(60)); 7149 7150 // Continuation indent width should win over aligning colons if the function 7151 // name is long. 7152 FormatStyle continuationStyle = getGoogleStyle(); 7153 continuationStyle.ColumnLimit = 40; 7154 continuationStyle.IndentWrappedFunctionNames = true; 7155 verifyFormat("- (void)shortf:(GTMFoo *)theFoo\n" 7156 " dontAlignNamef:(NSRect)theRect {\n" 7157 "}", 7158 continuationStyle); 7159 7160 // Make sure we don't break aligning for short parameter names. 7161 verifyFormat("- (void)shortf:(GTMFoo *)theFoo\n" 7162 " aShortf:(NSRect)theRect {\n" 7163 "}", 7164 continuationStyle); 7165 } 7166 7167 TEST_F(FormatTest, FormatObjCMethodExpr) { 7168 verifyFormat("[foo bar:baz];"); 7169 verifyFormat("return [foo bar:baz];"); 7170 verifyFormat("return (a)[foo bar:baz];"); 7171 verifyFormat("f([foo bar:baz]);"); 7172 verifyFormat("f(2, [foo bar:baz]);"); 7173 verifyFormat("f(2, a ? b : c);"); 7174 verifyFormat("[[self initWithInt:4] bar:[baz quux:arrrr]];"); 7175 7176 // Unary operators. 7177 verifyFormat("int a = +[foo bar:baz];"); 7178 verifyFormat("int a = -[foo bar:baz];"); 7179 verifyFormat("int a = ![foo bar:baz];"); 7180 verifyFormat("int a = ~[foo bar:baz];"); 7181 verifyFormat("int a = ++[foo bar:baz];"); 7182 verifyFormat("int a = --[foo bar:baz];"); 7183 verifyFormat("int a = sizeof [foo bar:baz];"); 7184 verifyFormat("int a = alignof [foo bar:baz];", getGoogleStyle()); 7185 verifyFormat("int a = &[foo bar:baz];"); 7186 verifyFormat("int a = *[foo bar:baz];"); 7187 // FIXME: Make casts work, without breaking f()[4]. 7188 // verifyFormat("int a = (int)[foo bar:baz];"); 7189 // verifyFormat("return (int)[foo bar:baz];"); 7190 // verifyFormat("(void)[foo bar:baz];"); 7191 verifyFormat("return (MyType *)[self.tableView cellForRowAtIndexPath:cell];"); 7192 7193 // Binary operators. 7194 verifyFormat("[foo bar:baz], [foo bar:baz];"); 7195 verifyFormat("[foo bar:baz] = [foo bar:baz];"); 7196 verifyFormat("[foo bar:baz] *= [foo bar:baz];"); 7197 verifyFormat("[foo bar:baz] /= [foo bar:baz];"); 7198 verifyFormat("[foo bar:baz] %= [foo bar:baz];"); 7199 verifyFormat("[foo bar:baz] += [foo bar:baz];"); 7200 verifyFormat("[foo bar:baz] -= [foo bar:baz];"); 7201 verifyFormat("[foo bar:baz] <<= [foo bar:baz];"); 7202 verifyFormat("[foo bar:baz] >>= [foo bar:baz];"); 7203 verifyFormat("[foo bar:baz] &= [foo bar:baz];"); 7204 verifyFormat("[foo bar:baz] ^= [foo bar:baz];"); 7205 verifyFormat("[foo bar:baz] |= [foo bar:baz];"); 7206 verifyFormat("[foo bar:baz] ? [foo bar:baz] : [foo bar:baz];"); 7207 verifyFormat("[foo bar:baz] || [foo bar:baz];"); 7208 verifyFormat("[foo bar:baz] && [foo bar:baz];"); 7209 verifyFormat("[foo bar:baz] | [foo bar:baz];"); 7210 verifyFormat("[foo bar:baz] ^ [foo bar:baz];"); 7211 verifyFormat("[foo bar:baz] & [foo bar:baz];"); 7212 verifyFormat("[foo bar:baz] == [foo bar:baz];"); 7213 verifyFormat("[foo bar:baz] != [foo bar:baz];"); 7214 verifyFormat("[foo bar:baz] >= [foo bar:baz];"); 7215 verifyFormat("[foo bar:baz] <= [foo bar:baz];"); 7216 verifyFormat("[foo bar:baz] > [foo bar:baz];"); 7217 verifyFormat("[foo bar:baz] < [foo bar:baz];"); 7218 verifyFormat("[foo bar:baz] >> [foo bar:baz];"); 7219 verifyFormat("[foo bar:baz] << [foo bar:baz];"); 7220 verifyFormat("[foo bar:baz] - [foo bar:baz];"); 7221 verifyFormat("[foo bar:baz] + [foo bar:baz];"); 7222 verifyFormat("[foo bar:baz] * [foo bar:baz];"); 7223 verifyFormat("[foo bar:baz] / [foo bar:baz];"); 7224 verifyFormat("[foo bar:baz] % [foo bar:baz];"); 7225 // Whew! 7226 7227 verifyFormat("return in[42];"); 7228 verifyFormat("for (auto v : in[1]) {\n}"); 7229 verifyFormat("for (int i = 0; i < in[a]; ++i) {\n}"); 7230 verifyFormat("for (int i = 0; in[a] < i; ++i) {\n}"); 7231 verifyFormat("for (int i = 0; i < n; ++i, ++in[a]) {\n}"); 7232 verifyFormat("for (int i = 0; i < n; ++i, in[a]++) {\n}"); 7233 verifyFormat("for (int i = 0; i < f(in[a]); ++i, in[a]++) {\n}"); 7234 verifyFormat("for (id foo in [self getStuffFor:bla]) {\n" 7235 "}"); 7236 verifyFormat("[self aaaaa:MACRO(a, b:, c:)];"); 7237 verifyFormat("[self aaaaa:(1 + 2) bbbbb:3];"); 7238 verifyFormat("[self aaaaa:(Type)a bbbbb:3];"); 7239 7240 verifyFormat("[self stuffWithInt:(4 + 2) float:4.5];"); 7241 verifyFormat("[self stuffWithInt:a ? b : c float:4.5];"); 7242 verifyFormat("[self stuffWithInt:a ? [self foo:bar] : c];"); 7243 verifyFormat("[self stuffWithInt:a ? (e ? f : g) : c];"); 7244 verifyFormat("[cond ? obj1 : obj2 methodWithParam:param]"); 7245 verifyFormat("[button setAction:@selector(zoomOut:)];"); 7246 verifyFormat("[color getRed:&r green:&g blue:&b alpha:&a];"); 7247 7248 verifyFormat("arr[[self indexForFoo:a]];"); 7249 verifyFormat("throw [self errorFor:a];"); 7250 verifyFormat("@throw [self errorFor:a];"); 7251 7252 verifyFormat("[(id)foo bar:(id)baz quux:(id)snorf];"); 7253 verifyFormat("[(id)foo bar:(id) ? baz : quux];"); 7254 verifyFormat("4 > 4 ? (id)a : (id)baz;"); 7255 7256 // This tests that the formatter doesn't break after "backing" but before ":", 7257 // which would be at 80 columns. 7258 verifyFormat( 7259 "void f() {\n" 7260 " if ((self = [super initWithContentRect:contentRect\n" 7261 " styleMask:styleMask ?: otherMask\n" 7262 " backing:NSBackingStoreBuffered\n" 7263 " defer:YES]))"); 7264 7265 verifyFormat( 7266 "[foo checkThatBreakingAfterColonWorksOk:\n" 7267 " [bar ifItDoes:reduceOverallLineLengthLikeInThisCase]];"); 7268 7269 verifyFormat("[myObj short:arg1 // Force line break\n" 7270 " longKeyword:arg2 != nil ? arg2 : @\"longKeyword\"\n" 7271 " evenLongerKeyword:arg3 ?: @\"evenLongerKeyword\"\n" 7272 " error:arg4];"); 7273 verifyFormat( 7274 "void f() {\n" 7275 " popup_window_.reset([[RenderWidgetPopupWindow alloc]\n" 7276 " initWithContentRect:NSMakeRect(origin_global.x, origin_global.y,\n" 7277 " pos.width(), pos.height())\n" 7278 " styleMask:NSBorderlessWindowMask\n" 7279 " backing:NSBackingStoreBuffered\n" 7280 " defer:NO]);\n" 7281 "}"); 7282 verifyFormat( 7283 "void f() {\n" 7284 " popup_wdow_.reset([[RenderWidgetPopupWindow alloc]\n" 7285 " iniithContentRect:NSMakRet(origin_global.x, origin_global.y,\n" 7286 " pos.width(), pos.height())\n" 7287 " syeMask:NSBorderlessWindowMask\n" 7288 " bking:NSBackingStoreBuffered\n" 7289 " der:NO]);\n" 7290 "}", 7291 getLLVMStyleWithColumns(70)); 7292 verifyFormat( 7293 "void f() {\n" 7294 " popup_window_.reset([[RenderWidgetPopupWindow alloc]\n" 7295 " initWithContentRect:NSMakeRect(origin_global.x, origin_global.y,\n" 7296 " pos.width(), pos.height())\n" 7297 " styleMask:NSBorderlessWindowMask\n" 7298 " backing:NSBackingStoreBuffered\n" 7299 " defer:NO]);\n" 7300 "}", 7301 getChromiumStyle(FormatStyle::LK_Cpp)); 7302 verifyFormat("[contentsContainer replaceSubview:[subviews objectAtIndex:0]\n" 7303 " with:contentsNativeView];"); 7304 7305 verifyFormat( 7306 "[pboard addTypes:[NSArray arrayWithObject:kBookmarkButtonDragType]\n" 7307 " owner:nillllll];"); 7308 7309 verifyFormat( 7310 "[pboard setData:[NSData dataWithBytes:&button length:sizeof(button)]\n" 7311 " forType:kBookmarkButtonDragType];"); 7312 7313 verifyFormat("[defaultCenter addObserver:self\n" 7314 " selector:@selector(willEnterFullscreen)\n" 7315 " name:kWillEnterFullscreenNotification\n" 7316 " object:nil];"); 7317 verifyFormat("[image_rep drawInRect:drawRect\n" 7318 " fromRect:NSZeroRect\n" 7319 " operation:NSCompositeCopy\n" 7320 " fraction:1.0\n" 7321 " respectFlipped:NO\n" 7322 " hints:nil];"); 7323 verifyFormat("[aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 7324 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa];"); 7325 verifyFormat("[aaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaa)\n" 7326 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa];"); 7327 verifyFormat("[aaaaaaaaaaaaaaaaaaaaaaa.aaaaaaaa[aaaaaaaaaaaaaaaaaaaaa]\n" 7328 " aaaaaaaaaaaaaaaaaaaaaa];"); 7329 verifyFormat("[call aaaaaaaa.aaaaaa.aaaaaaaa.aaaaaaaa.aaaaaaaa.aaaaaaaa\n" 7330 " .aaaaaaaa];", // FIXME: Indentation seems off. 7331 getLLVMStyleWithColumns(60)); 7332 7333 verifyFormat( 7334 "scoped_nsobject<NSTextField> message(\n" 7335 " // The frame will be fixed up when |-setMessageText:| is called.\n" 7336 " [[NSTextField alloc] initWithFrame:NSMakeRect(0, 0, 0, 0)]);"); 7337 verifyFormat("[self aaaaaa:bbbbbbbbbbbbb\n" 7338 " aaaaaaaaaa:bbbbbbbbbbbbbbbbb\n" 7339 " aaaaa:bbbbbbbbbbb + bbbbbbbbbbbb\n" 7340 " aaaa:bbb];"); 7341 verifyFormat("[self param:function( //\n" 7342 " parameter)]"); 7343 verifyFormat( 7344 "[self aaaaaaaaaa:aaaaaaaaaaaaaaa | aaaaaaaaaaaaaaa | aaaaaaaaaaaaaaa |\n" 7345 " aaaaaaaaaaaaaaa | aaaaaaaaaaaaaaa | aaaaaaaaaaaaaaa |\n" 7346 " aaaaaaaaaaaaaaa | aaaaaaaaaaaaaaa];"); 7347 7348 // FIXME: This violates the column limit. 7349 verifyFormat( 7350 "[aaaaaaaaaaaaaaaaaaaaaaaaa\n" 7351 " aaaaaaaaaaaaaaaaa:aaaaaaaa\n" 7352 " aaa:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa];", 7353 getLLVMStyleWithColumns(60)); 7354 7355 // Variadic parameters. 7356 verifyFormat( 7357 "NSArray *myStrings = [NSArray stringarray:@\"a\", @\"b\", nil];"); 7358 verifyFormat( 7359 "[self aaaaaaaaaaaaa:aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaa,\n" 7360 " aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaa,\n" 7361 " aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaa];"); 7362 verifyFormat("[self // break\n" 7363 " a:a\n" 7364 " aaa:aaa];"); 7365 verifyFormat("bool a = ([aaaaaaaa aaaaa] == aaaaaaaaaaaaaaaaa ||\n" 7366 " [aaaaaaaa aaaaa] == aaaaaaaaaaaaaaaaaaaa);"); 7367 } 7368 7369 TEST_F(FormatTest, ObjCAt) { 7370 verifyFormat("@autoreleasepool"); 7371 verifyFormat("@catch"); 7372 verifyFormat("@class"); 7373 verifyFormat("@compatibility_alias"); 7374 verifyFormat("@defs"); 7375 verifyFormat("@dynamic"); 7376 verifyFormat("@encode"); 7377 verifyFormat("@end"); 7378 verifyFormat("@finally"); 7379 verifyFormat("@implementation"); 7380 verifyFormat("@import"); 7381 verifyFormat("@interface"); 7382 verifyFormat("@optional"); 7383 verifyFormat("@package"); 7384 verifyFormat("@private"); 7385 verifyFormat("@property"); 7386 verifyFormat("@protected"); 7387 verifyFormat("@protocol"); 7388 verifyFormat("@public"); 7389 verifyFormat("@required"); 7390 verifyFormat("@selector"); 7391 verifyFormat("@synchronized"); 7392 verifyFormat("@synthesize"); 7393 verifyFormat("@throw"); 7394 verifyFormat("@try"); 7395 7396 EXPECT_EQ("@interface", format("@ interface")); 7397 7398 // The precise formatting of this doesn't matter, nobody writes code like 7399 // this. 7400 verifyFormat("@ /*foo*/ interface"); 7401 } 7402 7403 TEST_F(FormatTest, ObjCSnippets) { 7404 verifyFormat("@autoreleasepool {\n" 7405 " foo();\n" 7406 "}"); 7407 verifyFormat("@class Foo, Bar;"); 7408 verifyFormat("@compatibility_alias AliasName ExistingClass;"); 7409 verifyFormat("@dynamic textColor;"); 7410 verifyFormat("char *buf1 = @encode(int *);"); 7411 verifyFormat("char *buf1 = @encode(typeof(4 * 5));"); 7412 verifyFormat("char *buf1 = @encode(int **);"); 7413 verifyFormat("Protocol *proto = @protocol(p1);"); 7414 verifyFormat("SEL s = @selector(foo:);"); 7415 verifyFormat("@synchronized(self) {\n" 7416 " f();\n" 7417 "}"); 7418 7419 verifyFormat("@synthesize dropArrowPosition = dropArrowPosition_;"); 7420 verifyGoogleFormat("@synthesize dropArrowPosition = dropArrowPosition_;"); 7421 7422 verifyFormat("@property(assign, nonatomic) CGFloat hoverAlpha;"); 7423 verifyFormat("@property(assign, getter=isEditable) BOOL editable;"); 7424 verifyGoogleFormat("@property(assign, getter=isEditable) BOOL editable;"); 7425 verifyFormat("@property (assign, getter=isEditable) BOOL editable;", 7426 getMozillaStyle()); 7427 verifyFormat("@property BOOL editable;", getMozillaStyle()); 7428 verifyFormat("@property (assign, getter=isEditable) BOOL editable;", 7429 getWebKitStyle()); 7430 verifyFormat("@property BOOL editable;", getWebKitStyle()); 7431 7432 verifyFormat("@import foo.bar;\n" 7433 "@import baz;"); 7434 } 7435 7436 TEST_F(FormatTest, ObjCLiterals) { 7437 verifyFormat("@\"String\""); 7438 verifyFormat("@1"); 7439 verifyFormat("@+4.8"); 7440 verifyFormat("@-4"); 7441 verifyFormat("@1LL"); 7442 verifyFormat("@.5"); 7443 verifyFormat("@'c'"); 7444 verifyFormat("@true"); 7445 7446 verifyFormat("NSNumber *smallestInt = @(-INT_MAX - 1);"); 7447 verifyFormat("NSNumber *piOverTwo = @(M_PI / 2);"); 7448 verifyFormat("NSNumber *favoriteColor = @(Green);"); 7449 verifyFormat("NSString *path = @(getenv(\"PATH\"));"); 7450 7451 verifyFormat("[dictionary setObject:@(1) forKey:@\"number\"];"); 7452 } 7453 7454 TEST_F(FormatTest, ObjCDictLiterals) { 7455 verifyFormat("@{"); 7456 verifyFormat("@{}"); 7457 verifyFormat("@{@\"one\" : @1}"); 7458 verifyFormat("return @{@\"one\" : @1;"); 7459 verifyFormat("@{@\"one\" : @1}"); 7460 7461 verifyFormat("@{@\"one\" : @{@2 : @1}}"); 7462 verifyFormat("@{\n" 7463 " @\"one\" : @{@2 : @1},\n" 7464 "}"); 7465 7466 verifyFormat("@{1 > 2 ? @\"one\" : @\"two\" : 1 > 2 ? @1 : @2}"); 7467 verifyIncompleteFormat("[self setDict:@{}"); 7468 verifyIncompleteFormat("[self setDict:@{@1 : @2}"); 7469 verifyFormat("NSLog(@\"%@\", @{@1 : @2, @2 : @3}[@1]);"); 7470 verifyFormat( 7471 "NSDictionary *masses = @{@\"H\" : @1.0078, @\"He\" : @4.0026};"); 7472 verifyFormat( 7473 "NSDictionary *settings = @{AVEncoderKey : @(AVAudioQualityMax)};"); 7474 7475 verifyFormat("NSDictionary *d = @{\n" 7476 " @\"nam\" : NSUserNam(),\n" 7477 " @\"dte\" : [NSDate date],\n" 7478 " @\"processInfo\" : [NSProcessInfo processInfo]\n" 7479 "};"); 7480 verifyFormat( 7481 "@{\n" 7482 " NSFontAttributeNameeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee : " 7483 "regularFont,\n" 7484 "};"); 7485 verifyGoogleFormat( 7486 "@{\n" 7487 " NSFontAttributeNameeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee : " 7488 "regularFont,\n" 7489 "};"); 7490 verifyFormat( 7491 "@{\n" 7492 " NSFontAttributeNameeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee :\n" 7493 " reeeeeeeeeeeeeeeeeeeeeeeegularFont,\n" 7494 "};"); 7495 7496 // We should try to be robust in case someone forgets the "@". 7497 verifyFormat("NSDictionary *d = {\n" 7498 " @\"nam\" : NSUserNam(),\n" 7499 " @\"dte\" : [NSDate date],\n" 7500 " @\"processInfo\" : [NSProcessInfo processInfo]\n" 7501 "};"); 7502 verifyFormat("NSMutableDictionary *dictionary =\n" 7503 " [NSMutableDictionary dictionaryWithDictionary:@{\n" 7504 " aaaaaaaaaaaaaaaaaaaaa : aaaaaaaaaaaaa,\n" 7505 " bbbbbbbbbbbbbbbbbb : bbbbb,\n" 7506 " cccccccccccccccc : ccccccccccccccc\n" 7507 " }];"); 7508 } 7509 7510 TEST_F(FormatTest, ObjCArrayLiterals) { 7511 verifyIncompleteFormat("@["); 7512 verifyFormat("@[]"); 7513 verifyFormat( 7514 "NSArray *array = @[ @\" Hey \", NSApp, [NSNumber numberWithInt:42] ];"); 7515 verifyFormat("return @[ @3, @[], @[ @4, @5 ] ];"); 7516 verifyFormat("NSArray *array = @[ [foo description] ];"); 7517 7518 verifyFormat( 7519 "NSArray *some_variable = @[\n" 7520 " aaaa == bbbbbbbbbbb ? @\"aaaaaaaaaaaa\" : @\"aaaaaaaaaaaaaa\",\n" 7521 " @\"aaaaaaaaaaaaaaaaa\",\n" 7522 " @\"aaaaaaaaaaaaaaaaa\",\n" 7523 " @\"aaaaaaaaaaaaaaaaa\"\n" 7524 "];"); 7525 verifyFormat("NSArray *some_variable = @[\n" 7526 " @\"aaaaaaaaaaaaaaaaa\",\n" 7527 " @\"aaaaaaaaaaaaaaaaa\",\n" 7528 " @\"aaaaaaaaaaaaaaaaa\",\n" 7529 " @\"aaaaaaaaaaaaaaaaa\",\n" 7530 "];"); 7531 verifyGoogleFormat("NSArray *some_variable = @[\n" 7532 " @\"aaaaaaaaaaaaaaaaa\",\n" 7533 " @\"aaaaaaaaaaaaaaaaa\",\n" 7534 " @\"aaaaaaaaaaaaaaaaa\",\n" 7535 " @\"aaaaaaaaaaaaaaaaa\"\n" 7536 "];"); 7537 verifyFormat("NSArray *array = @[\n" 7538 " @\"a\",\n" 7539 " @\"a\",\n" // Trailing comma -> one per line. 7540 "];"); 7541 7542 // We should try to be robust in case someone forgets the "@". 7543 verifyFormat("NSArray *some_variable = [\n" 7544 " @\"aaaaaaaaaaaaaaaaa\",\n" 7545 " @\"aaaaaaaaaaaaaaaaa\",\n" 7546 " @\"aaaaaaaaaaaaaaaaa\",\n" 7547 " @\"aaaaaaaaaaaaaaaaa\",\n" 7548 "];"); 7549 verifyFormat( 7550 "- (NSAttributedString *)attributedStringForSegment:(NSUInteger)segment\n" 7551 " index:(NSUInteger)index\n" 7552 " nonDigitAttributes:\n" 7553 " (NSDictionary *)noDigitAttributes;"); 7554 verifyFormat("[someFunction someLooooooooooooongParameter:@[\n" 7555 " NSBundle.mainBundle.infoDictionary[@\"a\"]\n" 7556 "]];"); 7557 } 7558 7559 TEST_F(FormatTest, BreaksStringLiterals) { 7560 EXPECT_EQ("\"some text \"\n" 7561 "\"other\";", 7562 format("\"some text other\";", getLLVMStyleWithColumns(12))); 7563 EXPECT_EQ("\"some text \"\n" 7564 "\"other\";", 7565 format("\\\n\"some text other\";", getLLVMStyleWithColumns(12))); 7566 EXPECT_EQ( 7567 "#define A \\\n" 7568 " \"some \" \\\n" 7569 " \"text \" \\\n" 7570 " \"other\";", 7571 format("#define A \"some text other\";", getLLVMStyleWithColumns(12))); 7572 EXPECT_EQ( 7573 "#define A \\\n" 7574 " \"so \" \\\n" 7575 " \"text \" \\\n" 7576 " \"other\";", 7577 format("#define A \"so text other\";", getLLVMStyleWithColumns(12))); 7578 7579 EXPECT_EQ("\"some text\"", 7580 format("\"some text\"", getLLVMStyleWithColumns(1))); 7581 EXPECT_EQ("\"some text\"", 7582 format("\"some text\"", getLLVMStyleWithColumns(11))); 7583 EXPECT_EQ("\"some \"\n" 7584 "\"text\"", 7585 format("\"some text\"", getLLVMStyleWithColumns(10))); 7586 EXPECT_EQ("\"some \"\n" 7587 "\"text\"", 7588 format("\"some text\"", getLLVMStyleWithColumns(7))); 7589 EXPECT_EQ("\"some\"\n" 7590 "\" tex\"\n" 7591 "\"t\"", 7592 format("\"some text\"", getLLVMStyleWithColumns(6))); 7593 EXPECT_EQ("\"some\"\n" 7594 "\" tex\"\n" 7595 "\" and\"", 7596 format("\"some tex and\"", getLLVMStyleWithColumns(6))); 7597 EXPECT_EQ("\"some\"\n" 7598 "\"/tex\"\n" 7599 "\"/and\"", 7600 format("\"some/tex/and\"", getLLVMStyleWithColumns(6))); 7601 7602 EXPECT_EQ("variable =\n" 7603 " \"long string \"\n" 7604 " \"literal\";", 7605 format("variable = \"long string literal\";", 7606 getLLVMStyleWithColumns(20))); 7607 7608 EXPECT_EQ("variable = f(\n" 7609 " \"long string \"\n" 7610 " \"literal\",\n" 7611 " short,\n" 7612 " loooooooooooooooooooong);", 7613 format("variable = f(\"long string literal\", short, " 7614 "loooooooooooooooooooong);", 7615 getLLVMStyleWithColumns(20))); 7616 7617 EXPECT_EQ( 7618 "f(g(\"long string \"\n" 7619 " \"literal\"),\n" 7620 " b);", 7621 format("f(g(\"long string literal\"), b);", getLLVMStyleWithColumns(20))); 7622 EXPECT_EQ("f(g(\"long string \"\n" 7623 " \"literal\",\n" 7624 " a),\n" 7625 " b);", 7626 format("f(g(\"long string literal\", a), b);", 7627 getLLVMStyleWithColumns(20))); 7628 EXPECT_EQ( 7629 "f(\"one two\".split(\n" 7630 " variable));", 7631 format("f(\"one two\".split(variable));", getLLVMStyleWithColumns(20))); 7632 EXPECT_EQ("f(\"one two three four five six \"\n" 7633 " \"seven\".split(\n" 7634 " really_looooong_variable));", 7635 format("f(\"one two three four five six seven\"." 7636 "split(really_looooong_variable));", 7637 getLLVMStyleWithColumns(33))); 7638 7639 EXPECT_EQ("f(\"some \"\n" 7640 " \"text\",\n" 7641 " other);", 7642 format("f(\"some text\", other);", getLLVMStyleWithColumns(10))); 7643 7644 // Only break as a last resort. 7645 verifyFormat( 7646 "aaaaaaaaaaaaaaaaaaaa(\n" 7647 " aaaaaaaaaaaaaaaaaaaa,\n" 7648 " aaaaaa(\"aaa aaaaa aaa aaa aaaaa aaa aaaaa aaa aaa aaaaaa\"));"); 7649 7650 EXPECT_EQ("\"splitmea\"\n" 7651 "\"trandomp\"\n" 7652 "\"oint\"", 7653 format("\"splitmeatrandompoint\"", getLLVMStyleWithColumns(10))); 7654 7655 EXPECT_EQ("\"split/\"\n" 7656 "\"pathat/\"\n" 7657 "\"slashes\"", 7658 format("\"split/pathat/slashes\"", getLLVMStyleWithColumns(10))); 7659 7660 EXPECT_EQ("\"split/\"\n" 7661 "\"pathat/\"\n" 7662 "\"slashes\"", 7663 format("\"split/pathat/slashes\"", getLLVMStyleWithColumns(10))); 7664 EXPECT_EQ("\"split at \"\n" 7665 "\"spaces/at/\"\n" 7666 "\"slashes.at.any$\"\n" 7667 "\"non-alphanumeric%\"\n" 7668 "\"1111111111characte\"\n" 7669 "\"rs\"", 7670 format("\"split at " 7671 "spaces/at/" 7672 "slashes.at." 7673 "any$non-" 7674 "alphanumeric%" 7675 "1111111111characte" 7676 "rs\"", 7677 getLLVMStyleWithColumns(20))); 7678 7679 // Verify that splitting the strings understands 7680 // Style::AlwaysBreakBeforeMultilineStrings. 7681 EXPECT_EQ( 7682 "aaaaaaaaaaaa(\n" 7683 " \"aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaa \"\n" 7684 " \"aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaa\");", 7685 format("aaaaaaaaaaaa(\"aaaaaaaaaaaaaaaaaaaaaaaaaa " 7686 "aaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaa " 7687 "aaaaaaaaaaaaaaaaaaaaaa\");", 7688 getGoogleStyle())); 7689 EXPECT_EQ("return \"aaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaa \"\n" 7690 " \"aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaa\";", 7691 format("return \"aaaaaaaaaaaaaaaaaaaaaa " 7692 "aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaa " 7693 "aaaaaaaaaaaaaaaaaaaaaa\";", 7694 getGoogleStyle())); 7695 EXPECT_EQ("llvm::outs() << \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa \"\n" 7696 " \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\";", 7697 format("llvm::outs() << " 7698 "\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaa" 7699 "aaaaaaaaaaaaaaaaaaa\";")); 7700 EXPECT_EQ("ffff(\n" 7701 " {\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa \"\n" 7702 " \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"});", 7703 format("ffff({\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa " 7704 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"});", 7705 getGoogleStyle())); 7706 7707 FormatStyle AlignLeft = getLLVMStyleWithColumns(12); 7708 AlignLeft.AlignEscapedNewlinesLeft = true; 7709 EXPECT_EQ("#define A \\\n" 7710 " \"some \" \\\n" 7711 " \"text \" \\\n" 7712 " \"other\";", 7713 format("#define A \"some text other\";", AlignLeft)); 7714 } 7715 7716 TEST_F(FormatTest, FullyRemoveEmptyLines) { 7717 FormatStyle NoEmptyLines = getLLVMStyleWithColumns(80); 7718 NoEmptyLines.MaxEmptyLinesToKeep = 0; 7719 EXPECT_EQ("int i = a(b());", 7720 format("int i=a(\n\n b(\n\n\n )\n\n);", NoEmptyLines)); 7721 } 7722 7723 TEST_F(FormatTest, BreaksStringLiteralsWithTabs) { 7724 EXPECT_EQ( 7725 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" 7726 "(\n" 7727 " \"x\t\");", 7728 format("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" 7729 "aaaaaaa(" 7730 "\"x\t\");")); 7731 } 7732 7733 TEST_F(FormatTest, BreaksWideAndNSStringLiterals) { 7734 EXPECT_EQ( 7735 "u8\"utf8 string \"\n" 7736 "u8\"literal\";", 7737 format("u8\"utf8 string literal\";", getGoogleStyleWithColumns(16))); 7738 EXPECT_EQ( 7739 "u\"utf16 string \"\n" 7740 "u\"literal\";", 7741 format("u\"utf16 string literal\";", getGoogleStyleWithColumns(16))); 7742 EXPECT_EQ( 7743 "U\"utf32 string \"\n" 7744 "U\"literal\";", 7745 format("U\"utf32 string literal\";", getGoogleStyleWithColumns(16))); 7746 EXPECT_EQ("L\"wide string \"\n" 7747 "L\"literal\";", 7748 format("L\"wide string literal\";", getGoogleStyleWithColumns(16))); 7749 EXPECT_EQ("@\"NSString \"\n" 7750 "@\"literal\";", 7751 format("@\"NSString literal\";", getGoogleStyleWithColumns(19))); 7752 7753 // This input makes clang-format try to split the incomplete unicode escape 7754 // sequence, which used to lead to a crasher. 7755 verifyNoCrash( 7756 "aaaaaaaaaaaaaaaaaaaa = L\"\\udff\"'; // aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 7757 getLLVMStyleWithColumns(60)); 7758 } 7759 7760 TEST_F(FormatTest, DoesNotBreakRawStringLiterals) { 7761 FormatStyle Style = getGoogleStyleWithColumns(15); 7762 EXPECT_EQ("R\"x(raw literal)x\";", format("R\"x(raw literal)x\";", Style)); 7763 EXPECT_EQ("uR\"x(raw literal)x\";", format("uR\"x(raw literal)x\";", Style)); 7764 EXPECT_EQ("LR\"x(raw literal)x\";", format("LR\"x(raw literal)x\";", Style)); 7765 EXPECT_EQ("UR\"x(raw literal)x\";", format("UR\"x(raw literal)x\";", Style)); 7766 EXPECT_EQ("u8R\"x(raw literal)x\";", 7767 format("u8R\"x(raw literal)x\";", Style)); 7768 } 7769 7770 TEST_F(FormatTest, BreaksStringLiteralsWithin_TMacro) { 7771 FormatStyle Style = getLLVMStyleWithColumns(20); 7772 EXPECT_EQ( 7773 "_T(\"aaaaaaaaaaaaaa\")\n" 7774 "_T(\"aaaaaaaaaaaaaa\")\n" 7775 "_T(\"aaaaaaaaaaaa\")", 7776 format(" _T(\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\")", Style)); 7777 EXPECT_EQ("f(x, _T(\"aaaaaaaaa\")\n" 7778 " _T(\"aaaaaa\"),\n" 7779 " z);", 7780 format("f(x, _T(\"aaaaaaaaaaaaaaa\"), z);", Style)); 7781 7782 // FIXME: Handle embedded spaces in one iteration. 7783 // EXPECT_EQ("_T(\"aaaaaaaaaaaaa\")\n" 7784 // "_T(\"aaaaaaaaaaaaa\")\n" 7785 // "_T(\"aaaaaaaaaaaaa\")\n" 7786 // "_T(\"a\")", 7787 // format(" _T ( \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\" )", 7788 // getLLVMStyleWithColumns(20))); 7789 EXPECT_EQ( 7790 "_T ( \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\" )", 7791 format(" _T ( \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\" )", Style)); 7792 EXPECT_EQ("f(\n" 7793 "#if !TEST\n" 7794 " _T(\"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXn\")\n" 7795 "#endif\n" 7796 " );", 7797 format("f(\n" 7798 "#if !TEST\n" 7799 "_T(\"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXn\")\n" 7800 "#endif\n" 7801 ");")); 7802 EXPECT_EQ("f(\n" 7803 "\n" 7804 " _T(\"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXn\"));", 7805 format("f(\n" 7806 "\n" 7807 "_T(\"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXn\"));")); 7808 } 7809 7810 TEST_F(FormatTest, DontSplitStringLiteralsWithEscapedNewlines) { 7811 EXPECT_EQ( 7812 "aaaaaaaaaaa = \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 7813 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 7814 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\";", 7815 format("aaaaaaaaaaa = \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 7816 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 7817 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\";")); 7818 } 7819 7820 TEST_F(FormatTest, CountsCharactersInMultilineRawStringLiterals) { 7821 EXPECT_EQ("f(g(R\"x(raw literal)x\", a), b);", 7822 format("f(g(R\"x(raw literal)x\", a), b);", getGoogleStyle())); 7823 EXPECT_EQ("fffffffffff(g(R\"x(\n" 7824 "multiline raw string literal xxxxxxxxxxxxxx\n" 7825 ")x\",\n" 7826 " a),\n" 7827 " b);", 7828 format("fffffffffff(g(R\"x(\n" 7829 "multiline raw string literal xxxxxxxxxxxxxx\n" 7830 ")x\", a), b);", 7831 getGoogleStyleWithColumns(20))); 7832 EXPECT_EQ("fffffffffff(\n" 7833 " g(R\"x(qqq\n" 7834 "multiline raw string literal xxxxxxxxxxxxxx\n" 7835 ")x\",\n" 7836 " a),\n" 7837 " b);", 7838 format("fffffffffff(g(R\"x(qqq\n" 7839 "multiline raw string literal xxxxxxxxxxxxxx\n" 7840 ")x\", a), b);", 7841 getGoogleStyleWithColumns(20))); 7842 7843 EXPECT_EQ("fffffffffff(R\"x(\n" 7844 "multiline raw string literal xxxxxxxxxxxxxx\n" 7845 ")x\");", 7846 format("fffffffffff(R\"x(\n" 7847 "multiline raw string literal xxxxxxxxxxxxxx\n" 7848 ")x\");", 7849 getGoogleStyleWithColumns(20))); 7850 EXPECT_EQ("fffffffffff(R\"x(\n" 7851 "multiline raw string literal xxxxxxxxxxxxxx\n" 7852 ")x\" + bbbbbb);", 7853 format("fffffffffff(R\"x(\n" 7854 "multiline raw string literal xxxxxxxxxxxxxx\n" 7855 ")x\" + bbbbbb);", 7856 getGoogleStyleWithColumns(20))); 7857 EXPECT_EQ("fffffffffff(\n" 7858 " R\"x(\n" 7859 "multiline raw string literal xxxxxxxxxxxxxx\n" 7860 ")x\" +\n" 7861 " bbbbbb);", 7862 format("fffffffffff(\n" 7863 " R\"x(\n" 7864 "multiline raw string literal xxxxxxxxxxxxxx\n" 7865 ")x\" + bbbbbb);", 7866 getGoogleStyleWithColumns(20))); 7867 } 7868 7869 TEST_F(FormatTest, SkipsUnknownStringLiterals) { 7870 verifyFormat("string a = \"unterminated;"); 7871 EXPECT_EQ("function(\"unterminated,\n" 7872 " OtherParameter);", 7873 format("function( \"unterminated,\n" 7874 " OtherParameter);")); 7875 } 7876 7877 TEST_F(FormatTest, DoesNotTryToParseUDLiteralsInPreCpp11Code) { 7878 FormatStyle Style = getLLVMStyle(); 7879 Style.Standard = FormatStyle::LS_Cpp03; 7880 EXPECT_EQ("#define x(_a) printf(\"foo\" _a);", 7881 format("#define x(_a) printf(\"foo\"_a);", Style)); 7882 } 7883 7884 TEST_F(FormatTest, UnderstandsCpp1y) { verifyFormat("int bi{1'000'000};"); } 7885 7886 TEST_F(FormatTest, BreakStringLiteralsBeforeUnbreakableTokenSequence) { 7887 EXPECT_EQ("someFunction(\"aaabbbcccd\"\n" 7888 " \"ddeeefff\");", 7889 format("someFunction(\"aaabbbcccdddeeefff\");", 7890 getLLVMStyleWithColumns(25))); 7891 EXPECT_EQ("someFunction1234567890(\n" 7892 " \"aaabbbcccdddeeefff\");", 7893 format("someFunction1234567890(\"aaabbbcccdddeeefff\");", 7894 getLLVMStyleWithColumns(26))); 7895 EXPECT_EQ("someFunction1234567890(\n" 7896 " \"aaabbbcccdddeeeff\"\n" 7897 " \"f\");", 7898 format("someFunction1234567890(\"aaabbbcccdddeeefff\");", 7899 getLLVMStyleWithColumns(25))); 7900 EXPECT_EQ("someFunction1234567890(\n" 7901 " \"aaabbbcccdddeeeff\"\n" 7902 " \"f\");", 7903 format("someFunction1234567890(\"aaabbbcccdddeeefff\");", 7904 getLLVMStyleWithColumns(24))); 7905 EXPECT_EQ("someFunction(\"aaabbbcc \"\n" 7906 " \"ddde \"\n" 7907 " \"efff\");", 7908 format("someFunction(\"aaabbbcc ddde efff\");", 7909 getLLVMStyleWithColumns(25))); 7910 EXPECT_EQ("someFunction(\"aaabbbccc \"\n" 7911 " \"ddeeefff\");", 7912 format("someFunction(\"aaabbbccc ddeeefff\");", 7913 getLLVMStyleWithColumns(25))); 7914 EXPECT_EQ("someFunction1234567890(\n" 7915 " \"aaabb \"\n" 7916 " \"cccdddeeefff\");", 7917 format("someFunction1234567890(\"aaabb cccdddeeefff\");", 7918 getLLVMStyleWithColumns(25))); 7919 EXPECT_EQ("#define A \\\n" 7920 " string s = \\\n" 7921 " \"123456789\" \\\n" 7922 " \"0\"; \\\n" 7923 " int i;", 7924 format("#define A string s = \"1234567890\"; int i;", 7925 getLLVMStyleWithColumns(20))); 7926 // FIXME: Put additional penalties on breaking at non-whitespace locations. 7927 EXPECT_EQ("someFunction(\"aaabbbcc \"\n" 7928 " \"dddeeeff\"\n" 7929 " \"f\");", 7930 format("someFunction(\"aaabbbcc dddeeefff\");", 7931 getLLVMStyleWithColumns(25))); 7932 } 7933 7934 TEST_F(FormatTest, DoNotBreakStringLiteralsInEscapeSequence) { 7935 EXPECT_EQ("\"\\a\"", format("\"\\a\"", getLLVMStyleWithColumns(3))); 7936 EXPECT_EQ("\"\\\"", format("\"\\\"", getLLVMStyleWithColumns(2))); 7937 EXPECT_EQ("\"test\"\n" 7938 "\"\\n\"", 7939 format("\"test\\n\"", getLLVMStyleWithColumns(7))); 7940 EXPECT_EQ("\"tes\\\\\"\n" 7941 "\"n\"", 7942 format("\"tes\\\\n\"", getLLVMStyleWithColumns(7))); 7943 EXPECT_EQ("\"\\\\\\\\\"\n" 7944 "\"\\n\"", 7945 format("\"\\\\\\\\\\n\"", getLLVMStyleWithColumns(7))); 7946 EXPECT_EQ("\"\\uff01\"", format("\"\\uff01\"", getLLVMStyleWithColumns(7))); 7947 EXPECT_EQ("\"\\uff01\"\n" 7948 "\"test\"", 7949 format("\"\\uff01test\"", getLLVMStyleWithColumns(8))); 7950 EXPECT_EQ("\"\\Uff01ff02\"", 7951 format("\"\\Uff01ff02\"", getLLVMStyleWithColumns(11))); 7952 EXPECT_EQ("\"\\x000000000001\"\n" 7953 "\"next\"", 7954 format("\"\\x000000000001next\"", getLLVMStyleWithColumns(16))); 7955 EXPECT_EQ("\"\\x000000000001next\"", 7956 format("\"\\x000000000001next\"", getLLVMStyleWithColumns(15))); 7957 EXPECT_EQ("\"\\x000000000001\"", 7958 format("\"\\x000000000001\"", getLLVMStyleWithColumns(7))); 7959 EXPECT_EQ("\"test\"\n" 7960 "\"\\000000\"\n" 7961 "\"000001\"", 7962 format("\"test\\000000000001\"", getLLVMStyleWithColumns(9))); 7963 EXPECT_EQ("\"test\\000\"\n" 7964 "\"00000000\"\n" 7965 "\"1\"", 7966 format("\"test\\000000000001\"", getLLVMStyleWithColumns(10))); 7967 } 7968 7969 TEST_F(FormatTest, DoNotCreateUnreasonableUnwrappedLines) { 7970 verifyFormat("void f() {\n" 7971 " return g() {}\n" 7972 " void h() {}"); 7973 verifyFormat("int a[] = {void forgot_closing_brace(){f();\n" 7974 "g();\n" 7975 "}"); 7976 } 7977 7978 TEST_F(FormatTest, DoNotPrematurelyEndUnwrappedLineForReturnStatements) { 7979 verifyFormat( 7980 "void f() { return C{param1, param2}.SomeCall(param1, param2); }"); 7981 } 7982 7983 TEST_F(FormatTest, FormatsClosingBracesInEmptyNestedBlocks) { 7984 verifyFormat("class X {\n" 7985 " void f() {\n" 7986 " }\n" 7987 "};", 7988 getLLVMStyleWithColumns(12)); 7989 } 7990 7991 TEST_F(FormatTest, ConfigurableIndentWidth) { 7992 FormatStyle EightIndent = getLLVMStyleWithColumns(18); 7993 EightIndent.IndentWidth = 8; 7994 EightIndent.ContinuationIndentWidth = 8; 7995 verifyFormat("void f() {\n" 7996 " someFunction();\n" 7997 " if (true) {\n" 7998 " f();\n" 7999 " }\n" 8000 "}", 8001 EightIndent); 8002 verifyFormat("class X {\n" 8003 " void f() {\n" 8004 " }\n" 8005 "};", 8006 EightIndent); 8007 verifyFormat("int x[] = {\n" 8008 " call(),\n" 8009 " call()};", 8010 EightIndent); 8011 } 8012 8013 TEST_F(FormatTest, ConfigurableFunctionDeclarationIndentAfterType) { 8014 verifyFormat("double\n" 8015 "f();", 8016 getLLVMStyleWithColumns(8)); 8017 } 8018 8019 TEST_F(FormatTest, ConfigurableUseOfTab) { 8020 FormatStyle Tab = getLLVMStyleWithColumns(42); 8021 Tab.IndentWidth = 8; 8022 Tab.UseTab = FormatStyle::UT_Always; 8023 Tab.AlignEscapedNewlinesLeft = true; 8024 8025 EXPECT_EQ("if (aaaaaaaa && // q\n" 8026 " bb)\t\t// w\n" 8027 "\t;", 8028 format("if (aaaaaaaa &&// q\n" 8029 "bb)// w\n" 8030 ";", 8031 Tab)); 8032 EXPECT_EQ("if (aaa && bbb) // w\n" 8033 "\t;", 8034 format("if(aaa&&bbb)// w\n" 8035 ";", 8036 Tab)); 8037 8038 verifyFormat("class X {\n" 8039 "\tvoid f() {\n" 8040 "\t\tsomeFunction(parameter1,\n" 8041 "\t\t\t parameter2);\n" 8042 "\t}\n" 8043 "};", 8044 Tab); 8045 verifyFormat("#define A \\\n" 8046 "\tvoid f() { \\\n" 8047 "\t\tsomeFunction( \\\n" 8048 "\t\t parameter1, \\\n" 8049 "\t\t parameter2); \\\n" 8050 "\t}", 8051 Tab); 8052 8053 Tab.TabWidth = 4; 8054 Tab.IndentWidth = 8; 8055 verifyFormat("class TabWidth4Indent8 {\n" 8056 "\t\tvoid f() {\n" 8057 "\t\t\t\tsomeFunction(parameter1,\n" 8058 "\t\t\t\t\t\t\t parameter2);\n" 8059 "\t\t}\n" 8060 "};", 8061 Tab); 8062 8063 Tab.TabWidth = 4; 8064 Tab.IndentWidth = 4; 8065 verifyFormat("class TabWidth4Indent4 {\n" 8066 "\tvoid f() {\n" 8067 "\t\tsomeFunction(parameter1,\n" 8068 "\t\t\t\t\t parameter2);\n" 8069 "\t}\n" 8070 "};", 8071 Tab); 8072 8073 Tab.TabWidth = 8; 8074 Tab.IndentWidth = 4; 8075 verifyFormat("class TabWidth8Indent4 {\n" 8076 " void f() {\n" 8077 "\tsomeFunction(parameter1,\n" 8078 "\t\t parameter2);\n" 8079 " }\n" 8080 "};", 8081 Tab); 8082 8083 Tab.TabWidth = 8; 8084 Tab.IndentWidth = 8; 8085 EXPECT_EQ("/*\n" 8086 "\t a\t\tcomment\n" 8087 "\t in multiple lines\n" 8088 " */", 8089 format(" /*\t \t \n" 8090 " \t \t a\t\tcomment\t \t\n" 8091 " \t \t in multiple lines\t\n" 8092 " \t */", 8093 Tab)); 8094 8095 Tab.UseTab = FormatStyle::UT_ForIndentation; 8096 verifyFormat("{\n" 8097 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8098 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8099 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8100 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8101 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8102 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8103 "};", 8104 Tab); 8105 verifyFormat("enum A {\n" 8106 "\ta1, // Force multiple lines\n" 8107 "\ta2,\n" 8108 "\ta3\n" 8109 "};", 8110 Tab); 8111 EXPECT_EQ("if (aaaaaaaa && // q\n" 8112 " bb) // w\n" 8113 "\t;", 8114 format("if (aaaaaaaa &&// q\n" 8115 "bb)// w\n" 8116 ";", 8117 Tab)); 8118 verifyFormat("class X {\n" 8119 "\tvoid f() {\n" 8120 "\t\tsomeFunction(parameter1,\n" 8121 "\t\t parameter2);\n" 8122 "\t}\n" 8123 "};", 8124 Tab); 8125 verifyFormat("{\n" 8126 "\tQ(\n" 8127 "\t {\n" 8128 "\t\t int a;\n" 8129 "\t\t someFunction(aaaaaaaa,\n" 8130 "\t\t bbbbbbb);\n" 8131 "\t },\n" 8132 "\t p);\n" 8133 "}", 8134 Tab); 8135 EXPECT_EQ("{\n" 8136 "\t/* aaaa\n" 8137 "\t bbbb */\n" 8138 "}", 8139 format("{\n" 8140 "/* aaaa\n" 8141 " bbbb */\n" 8142 "}", 8143 Tab)); 8144 EXPECT_EQ("{\n" 8145 "\t/*\n" 8146 "\t aaaaaaaaaaaaaaaaaaaaaaaaaa\n" 8147 "\t bbbbbbbbbbbbb\n" 8148 "\t*/\n" 8149 "}", 8150 format("{\n" 8151 "/*\n" 8152 " aaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbb\n" 8153 "*/\n" 8154 "}", 8155 Tab)); 8156 EXPECT_EQ("{\n" 8157 "\t// aaaaaaaaaaaaaaaaaaaaaaaaaa\n" 8158 "\t// bbbbbbbbbbbbb\n" 8159 "}", 8160 format("{\n" 8161 "\t// aaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbb\n" 8162 "}", 8163 Tab)); 8164 EXPECT_EQ("{\n" 8165 "\t/*\n" 8166 "\t aaaaaaaaaaaaaaaaaaaaaaaaaa\n" 8167 "\t bbbbbbbbbbbbb\n" 8168 "\t*/\n" 8169 "}", 8170 format("{\n" 8171 "\t/*\n" 8172 "\t aaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbb\n" 8173 "\t*/\n" 8174 "}", 8175 Tab)); 8176 EXPECT_EQ("{\n" 8177 "\t/*\n" 8178 "\n" 8179 "\t*/\n" 8180 "}", 8181 format("{\n" 8182 "\t/*\n" 8183 "\n" 8184 "\t*/\n" 8185 "}", 8186 Tab)); 8187 EXPECT_EQ("{\n" 8188 "\t/*\n" 8189 " asdf\n" 8190 "\t*/\n" 8191 "}", 8192 format("{\n" 8193 "\t/*\n" 8194 " asdf\n" 8195 "\t*/\n" 8196 "}", 8197 Tab)); 8198 8199 Tab.UseTab = FormatStyle::UT_Never; 8200 EXPECT_EQ("/*\n" 8201 " a\t\tcomment\n" 8202 " in multiple lines\n" 8203 " */", 8204 format(" /*\t \t \n" 8205 " \t \t a\t\tcomment\t \t\n" 8206 " \t \t in multiple lines\t\n" 8207 " \t */", 8208 Tab)); 8209 EXPECT_EQ("/* some\n" 8210 " comment */", 8211 format(" \t \t /* some\n" 8212 " \t \t comment */", 8213 Tab)); 8214 EXPECT_EQ("int a; /* some\n" 8215 " comment */", 8216 format(" \t \t int a; /* some\n" 8217 " \t \t comment */", 8218 Tab)); 8219 8220 EXPECT_EQ("int a; /* some\n" 8221 "comment */", 8222 format(" \t \t int\ta; /* some\n" 8223 " \t \t comment */", 8224 Tab)); 8225 EXPECT_EQ("f(\"\t\t\"); /* some\n" 8226 " comment */", 8227 format(" \t \t f(\"\t\t\"); /* some\n" 8228 " \t \t comment */", 8229 Tab)); 8230 EXPECT_EQ("{\n" 8231 " /*\n" 8232 " * Comment\n" 8233 " */\n" 8234 " int i;\n" 8235 "}", 8236 format("{\n" 8237 "\t/*\n" 8238 "\t * Comment\n" 8239 "\t */\n" 8240 "\t int i;\n" 8241 "}")); 8242 } 8243 8244 TEST_F(FormatTest, CalculatesOriginalColumn) { 8245 EXPECT_EQ("\"qqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 8246 "q\"; /* some\n" 8247 " comment */", 8248 format(" \"qqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 8249 "q\"; /* some\n" 8250 " comment */", 8251 getLLVMStyle())); 8252 EXPECT_EQ("// qqqqqqqqqqqqqqqqqqqqqqqqqq\n" 8253 "/* some\n" 8254 " comment */", 8255 format("// qqqqqqqqqqqqqqqqqqqqqqqqqq\n" 8256 " /* some\n" 8257 " comment */", 8258 getLLVMStyle())); 8259 EXPECT_EQ("// qqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 8260 "qqq\n" 8261 "/* some\n" 8262 " comment */", 8263 format("// qqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 8264 "qqq\n" 8265 " /* some\n" 8266 " comment */", 8267 getLLVMStyle())); 8268 EXPECT_EQ("inttt qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 8269 "wwww; /* some\n" 8270 " comment */", 8271 format(" inttt qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 8272 "wwww; /* some\n" 8273 " comment */", 8274 getLLVMStyle())); 8275 } 8276 8277 TEST_F(FormatTest, ConfigurableSpaceBeforeParens) { 8278 FormatStyle NoSpace = getLLVMStyle(); 8279 NoSpace.SpaceBeforeParens = FormatStyle::SBPO_Never; 8280 8281 verifyFormat("while(true)\n" 8282 " continue;", 8283 NoSpace); 8284 verifyFormat("for(;;)\n" 8285 " continue;", 8286 NoSpace); 8287 verifyFormat("if(true)\n" 8288 " f();\n" 8289 "else if(true)\n" 8290 " f();", 8291 NoSpace); 8292 verifyFormat("do {\n" 8293 " do_something();\n" 8294 "} while(something());", 8295 NoSpace); 8296 verifyFormat("switch(x) {\n" 8297 "default:\n" 8298 " break;\n" 8299 "}", 8300 NoSpace); 8301 verifyFormat("auto i = std::make_unique<int>(5);", NoSpace); 8302 verifyFormat("size_t x = sizeof(x);", NoSpace); 8303 verifyFormat("auto f(int x) -> decltype(x);", NoSpace); 8304 verifyFormat("int f(T x) noexcept(x.create());", NoSpace); 8305 verifyFormat("alignas(128) char a[128];", NoSpace); 8306 verifyFormat("size_t x = alignof(MyType);", NoSpace); 8307 verifyFormat("static_assert(sizeof(char) == 1, \"Impossible!\");", NoSpace); 8308 verifyFormat("int f() throw(Deprecated);", NoSpace); 8309 verifyFormat("typedef void (*cb)(int);", NoSpace); 8310 verifyFormat("T A::operator()();", NoSpace); 8311 verifyFormat("X A::operator++(T);", NoSpace); 8312 8313 FormatStyle Space = getLLVMStyle(); 8314 Space.SpaceBeforeParens = FormatStyle::SBPO_Always; 8315 8316 verifyFormat("int f ();", Space); 8317 verifyFormat("void f (int a, T b) {\n" 8318 " while (true)\n" 8319 " continue;\n" 8320 "}", 8321 Space); 8322 verifyFormat("if (true)\n" 8323 " f ();\n" 8324 "else if (true)\n" 8325 " f ();", 8326 Space); 8327 verifyFormat("do {\n" 8328 " do_something ();\n" 8329 "} while (something ());", 8330 Space); 8331 verifyFormat("switch (x) {\n" 8332 "default:\n" 8333 " break;\n" 8334 "}", 8335 Space); 8336 verifyFormat("A::A () : a (1) {}", Space); 8337 verifyFormat("void f () __attribute__ ((asdf));", Space); 8338 verifyFormat("*(&a + 1);\n" 8339 "&((&a)[1]);\n" 8340 "a[(b + c) * d];\n" 8341 "(((a + 1) * 2) + 3) * 4;", 8342 Space); 8343 verifyFormat("#define A(x) x", Space); 8344 verifyFormat("#define A (x) x", Space); 8345 verifyFormat("#if defined(x)\n" 8346 "#endif", 8347 Space); 8348 verifyFormat("auto i = std::make_unique<int> (5);", Space); 8349 verifyFormat("size_t x = sizeof (x);", Space); 8350 verifyFormat("auto f (int x) -> decltype (x);", Space); 8351 verifyFormat("int f (T x) noexcept (x.create ());", Space); 8352 verifyFormat("alignas (128) char a[128];", Space); 8353 verifyFormat("size_t x = alignof (MyType);", Space); 8354 verifyFormat("static_assert (sizeof (char) == 1, \"Impossible!\");", Space); 8355 verifyFormat("int f () throw (Deprecated);", Space); 8356 verifyFormat("typedef void (*cb) (int);", Space); 8357 verifyFormat("T A::operator() ();", Space); 8358 verifyFormat("X A::operator++ (T);", Space); 8359 } 8360 8361 TEST_F(FormatTest, ConfigurableSpacesInParentheses) { 8362 FormatStyle Spaces = getLLVMStyle(); 8363 8364 Spaces.SpacesInParentheses = true; 8365 verifyFormat("call( x, y, z );", Spaces); 8366 verifyFormat("call();", Spaces); 8367 verifyFormat("std::function<void( int, int )> callback;", Spaces); 8368 verifyFormat("while ( (bool)1 )\n" 8369 " continue;", 8370 Spaces); 8371 verifyFormat("for ( ;; )\n" 8372 " continue;", 8373 Spaces); 8374 verifyFormat("if ( true )\n" 8375 " f();\n" 8376 "else if ( true )\n" 8377 " f();", 8378 Spaces); 8379 verifyFormat("do {\n" 8380 " do_something( (int)i );\n" 8381 "} while ( something() );", 8382 Spaces); 8383 verifyFormat("switch ( x ) {\n" 8384 "default:\n" 8385 " break;\n" 8386 "}", 8387 Spaces); 8388 8389 Spaces.SpacesInParentheses = false; 8390 Spaces.SpacesInCStyleCastParentheses = true; 8391 verifyFormat("Type *A = ( Type * )P;", Spaces); 8392 verifyFormat("Type *A = ( vector<Type *, int *> )P;", Spaces); 8393 verifyFormat("x = ( int32 )y;", Spaces); 8394 verifyFormat("int a = ( int )(2.0f);", Spaces); 8395 verifyFormat("#define AA(X) sizeof((( X * )NULL)->a)", Spaces); 8396 verifyFormat("my_int a = ( my_int )sizeof(int);", Spaces); 8397 verifyFormat("#define x (( int )-1)", Spaces); 8398 8399 // Run the first set of tests again with: 8400 Spaces.SpacesInParentheses = false, Spaces.SpaceInEmptyParentheses = true; 8401 Spaces.SpacesInCStyleCastParentheses = true; 8402 verifyFormat("call(x, y, z);", Spaces); 8403 verifyFormat("call( );", Spaces); 8404 verifyFormat("std::function<void(int, int)> callback;", Spaces); 8405 verifyFormat("while (( bool )1)\n" 8406 " continue;", 8407 Spaces); 8408 verifyFormat("for (;;)\n" 8409 " continue;", 8410 Spaces); 8411 verifyFormat("if (true)\n" 8412 " f( );\n" 8413 "else if (true)\n" 8414 " f( );", 8415 Spaces); 8416 verifyFormat("do {\n" 8417 " do_something(( int )i);\n" 8418 "} while (something( ));", 8419 Spaces); 8420 verifyFormat("switch (x) {\n" 8421 "default:\n" 8422 " break;\n" 8423 "}", 8424 Spaces); 8425 8426 // Run the first set of tests again with: 8427 Spaces.SpaceAfterCStyleCast = true; 8428 verifyFormat("call(x, y, z);", Spaces); 8429 verifyFormat("call( );", Spaces); 8430 verifyFormat("std::function<void(int, int)> callback;", Spaces); 8431 verifyFormat("while (( bool ) 1)\n" 8432 " continue;", 8433 Spaces); 8434 verifyFormat("for (;;)\n" 8435 " continue;", 8436 Spaces); 8437 verifyFormat("if (true)\n" 8438 " f( );\n" 8439 "else if (true)\n" 8440 " f( );", 8441 Spaces); 8442 verifyFormat("do {\n" 8443 " do_something(( int ) i);\n" 8444 "} while (something( ));", 8445 Spaces); 8446 verifyFormat("switch (x) {\n" 8447 "default:\n" 8448 " break;\n" 8449 "}", 8450 Spaces); 8451 8452 // Run subset of tests again with: 8453 Spaces.SpacesInCStyleCastParentheses = false; 8454 Spaces.SpaceAfterCStyleCast = true; 8455 verifyFormat("while ((bool) 1)\n" 8456 " continue;", 8457 Spaces); 8458 verifyFormat("do {\n" 8459 " do_something((int) i);\n" 8460 "} while (something( ));", 8461 Spaces); 8462 } 8463 8464 TEST_F(FormatTest, ConfigurableSpacesInSquareBrackets) { 8465 verifyFormat("int a[5];"); 8466 verifyFormat("a[3] += 42;"); 8467 8468 FormatStyle Spaces = getLLVMStyle(); 8469 Spaces.SpacesInSquareBrackets = true; 8470 // Lambdas unchanged. 8471 verifyFormat("int c = []() -> int { return 2; }();\n", Spaces); 8472 verifyFormat("return [i, args...] {};", Spaces); 8473 8474 // Not lambdas. 8475 verifyFormat("int a[ 5 ];", Spaces); 8476 verifyFormat("a[ 3 ] += 42;", Spaces); 8477 verifyFormat("constexpr char hello[]{\"hello\"};", Spaces); 8478 verifyFormat("double &operator[](int i) { return 0; }\n" 8479 "int i;", 8480 Spaces); 8481 verifyFormat("std::unique_ptr<int[]> foo() {}", Spaces); 8482 verifyFormat("int i = a[ a ][ a ]->f();", Spaces); 8483 verifyFormat("int i = (*b)[ a ]->f();", Spaces); 8484 } 8485 8486 TEST_F(FormatTest, ConfigurableSpaceBeforeAssignmentOperators) { 8487 verifyFormat("int a = 5;"); 8488 verifyFormat("a += 42;"); 8489 verifyFormat("a or_eq 8;"); 8490 8491 FormatStyle Spaces = getLLVMStyle(); 8492 Spaces.SpaceBeforeAssignmentOperators = false; 8493 verifyFormat("int a= 5;", Spaces); 8494 verifyFormat("a+= 42;", Spaces); 8495 verifyFormat("a or_eq 8;", Spaces); 8496 } 8497 8498 TEST_F(FormatTest, AlignConsecutiveAssignments) { 8499 FormatStyle Alignment = getLLVMStyle(); 8500 Alignment.AlignConsecutiveAssignments = false; 8501 verifyFormat("int a = 5;\n" 8502 "int oneTwoThree = 123;", 8503 Alignment); 8504 verifyFormat("int a = 5;\n" 8505 "int oneTwoThree = 123;", 8506 Alignment); 8507 8508 Alignment.AlignConsecutiveAssignments = true; 8509 verifyFormat("int a = 5;\n" 8510 "int oneTwoThree = 123;", 8511 Alignment); 8512 verifyFormat("int a = method();\n" 8513 "int oneTwoThree = 133;", 8514 Alignment); 8515 verifyFormat("a &= 5;\n" 8516 "bcd *= 5;\n" 8517 "ghtyf += 5;\n" 8518 "dvfvdb -= 5;\n" 8519 "a /= 5;\n" 8520 "vdsvsv %= 5;\n" 8521 "sfdbddfbdfbb ^= 5;\n" 8522 "dvsdsv |= 5;\n" 8523 "int dsvvdvsdvvv = 123;", 8524 Alignment); 8525 verifyFormat("int i = 1, j = 10;\n" 8526 "something = 2000;", 8527 Alignment); 8528 verifyFormat("something = 2000;\n" 8529 "int i = 1, j = 10;\n", 8530 Alignment); 8531 verifyFormat("something = 2000;\n" 8532 "another = 911;\n" 8533 "int i = 1, j = 10;\n" 8534 "oneMore = 1;\n" 8535 "i = 2;", 8536 Alignment); 8537 verifyFormat("int a = 5;\n" 8538 "int one = 1;\n" 8539 "method();\n" 8540 "int oneTwoThree = 123;\n" 8541 "int oneTwo = 12;", 8542 Alignment); 8543 verifyFormat("int oneTwoThree = 123;\n" 8544 "int oneTwo = 12;\n" 8545 "method();\n", 8546 Alignment); 8547 verifyFormat("int oneTwoThree = 123; // comment\n" 8548 "int oneTwo = 12; // comment", 8549 Alignment); 8550 EXPECT_EQ("int a = 5;\n" 8551 "\n" 8552 "int oneTwoThree = 123;", 8553 format("int a = 5;\n" 8554 "\n" 8555 "int oneTwoThree= 123;", 8556 Alignment)); 8557 EXPECT_EQ("int a = 5;\n" 8558 "int one = 1;\n" 8559 "\n" 8560 "int oneTwoThree = 123;", 8561 format("int a = 5;\n" 8562 "int one = 1;\n" 8563 "\n" 8564 "int oneTwoThree = 123;", 8565 Alignment)); 8566 EXPECT_EQ("int a = 5;\n" 8567 "int one = 1;\n" 8568 "\n" 8569 "int oneTwoThree = 123;\n" 8570 "int oneTwo = 12;", 8571 format("int a = 5;\n" 8572 "int one = 1;\n" 8573 "\n" 8574 "int oneTwoThree = 123;\n" 8575 "int oneTwo = 12;", 8576 Alignment)); 8577 Alignment.AlignEscapedNewlinesLeft = true; 8578 verifyFormat("#define A \\\n" 8579 " int aaaa = 12; \\\n" 8580 " int b = 23; \\\n" 8581 " int ccc = 234; \\\n" 8582 " int dddddddddd = 2345;", 8583 Alignment); 8584 Alignment.AlignEscapedNewlinesLeft = false; 8585 verifyFormat("#define A " 8586 " \\\n" 8587 " int aaaa = 12; " 8588 " \\\n" 8589 " int b = 23; " 8590 " \\\n" 8591 " int ccc = 234; " 8592 " \\\n" 8593 " int dddddddddd = 2345;", 8594 Alignment); 8595 verifyFormat("void SomeFunction(int parameter = 1, int i = 2, int j = 3, int " 8596 "k = 4, int l = 5,\n" 8597 " int m = 6) {\n" 8598 " int j = 10;\n" 8599 " otherThing = 1;\n" 8600 "}", 8601 Alignment); 8602 verifyFormat("void SomeFunction(int parameter = 0) {\n" 8603 " int i = 1;\n" 8604 " int j = 2;\n" 8605 " int big = 10000;\n" 8606 "}", 8607 Alignment); 8608 verifyFormat("class C {\n" 8609 "public:\n" 8610 " int i = 1;\n" 8611 " virtual void f() = 0;\n" 8612 "};", 8613 Alignment); 8614 verifyFormat("int i = 1;\n" 8615 "if (SomeType t = getSomething()) {\n" 8616 "}\n" 8617 "int j = 2;\n" 8618 "int big = 10000;", 8619 Alignment); 8620 verifyFormat("int j = 7;\n" 8621 "for (int k = 0; k < N; ++k) {\n" 8622 "}\n" 8623 "int j = 2;\n" 8624 "int big = 10000;\n" 8625 "}", 8626 Alignment); 8627 Alignment.BreakBeforeBinaryOperators = FormatStyle::BOS_All; 8628 verifyFormat("int i = 1;\n" 8629 "LooooooooooongType loooooooooooooooooooooongVariable\n" 8630 " = someLooooooooooooooooongFunction();\n" 8631 "int j = 2;", 8632 Alignment); 8633 Alignment.BreakBeforeBinaryOperators = FormatStyle::BOS_None; 8634 verifyFormat("int i = 1;\n" 8635 "LooooooooooongType loooooooooooooooooooooongVariable =\n" 8636 " someLooooooooooooooooongFunction();\n" 8637 "int j = 2;", 8638 Alignment); 8639 // FIXME: Should align all three assignments 8640 verifyFormat( 8641 "int i = 1;\n" 8642 "SomeType a = SomeFunction(looooooooooooooooooooooongParameterA,\n" 8643 " loooooooooooooooooooooongParameterB);\n" 8644 "int j = 2;", 8645 Alignment); 8646 } 8647 8648 TEST_F(FormatTest, AlignConsecutiveDeclarations) { 8649 FormatStyle Alignment = getLLVMStyle(); 8650 Alignment.AlignConsecutiveDeclarations = false; 8651 verifyFormat("float const a = 5;\n" 8652 "int oneTwoThree = 123;", 8653 Alignment); 8654 verifyFormat("int a = 5;\n" 8655 "float const oneTwoThree = 123;", 8656 Alignment); 8657 8658 Alignment.AlignConsecutiveDeclarations = true; 8659 verifyFormat("float const a = 5;\n" 8660 "int oneTwoThree = 123;", 8661 Alignment); 8662 verifyFormat("int a = method();\n" 8663 "float const oneTwoThree = 133;", 8664 Alignment); 8665 verifyFormat("int i = 1, j = 10;\n" 8666 "something = 2000;", 8667 Alignment); 8668 verifyFormat("something = 2000;\n" 8669 "int i = 1, j = 10;\n", 8670 Alignment); 8671 verifyFormat("float something = 2000;\n" 8672 "double another = 911;\n" 8673 "int i = 1, j = 10;\n" 8674 "const int *oneMore = 1;\n" 8675 "unsigned i = 2;", 8676 Alignment); 8677 verifyFormat("float a = 5;\n" 8678 "int one = 1;\n" 8679 "method();\n" 8680 "const double oneTwoThree = 123;\n" 8681 "const unsigned int oneTwo = 12;", 8682 Alignment); 8683 verifyFormat("int oneTwoThree{0}; // comment\n" 8684 "unsigned oneTwo; // comment", 8685 Alignment); 8686 EXPECT_EQ("float const a = 5;\n" 8687 "\n" 8688 "int oneTwoThree = 123;", 8689 format("float const a = 5;\n" 8690 "\n" 8691 "int oneTwoThree= 123;", 8692 Alignment)); 8693 EXPECT_EQ("float a = 5;\n" 8694 "int one = 1;\n" 8695 "\n" 8696 "unsigned oneTwoThree = 123;", 8697 format("float a = 5;\n" 8698 "int one = 1;\n" 8699 "\n" 8700 "unsigned oneTwoThree = 123;", 8701 Alignment)); 8702 EXPECT_EQ("float a = 5;\n" 8703 "int one = 1;\n" 8704 "\n" 8705 "unsigned oneTwoThree = 123;\n" 8706 "int oneTwo = 12;", 8707 format("float a = 5;\n" 8708 "int one = 1;\n" 8709 "\n" 8710 "unsigned oneTwoThree = 123;\n" 8711 "int oneTwo = 12;", 8712 Alignment)); 8713 Alignment.AlignConsecutiveAssignments = true; 8714 verifyFormat("float something = 2000;\n" 8715 "double another = 911;\n" 8716 "int i = 1, j = 10;\n" 8717 "const int *oneMore = 1;\n" 8718 "unsigned i = 2;", 8719 Alignment); 8720 verifyFormat("int oneTwoThree = {0}; // comment\n" 8721 "unsigned oneTwo = 0; // comment", 8722 Alignment); 8723 EXPECT_EQ("void SomeFunction(int parameter = 0) {\n" 8724 " int const i = 1;\n" 8725 " int * j = 2;\n" 8726 " int big = 10000;\n" 8727 "\n" 8728 " unsigned oneTwoThree = 123;\n" 8729 " int oneTwo = 12;\n" 8730 " method();\n" 8731 " float k = 2;\n" 8732 " int ll = 10000;\n" 8733 "}", 8734 format("void SomeFunction(int parameter= 0) {\n" 8735 " int const i= 1;\n" 8736 " int *j=2;\n" 8737 " int big = 10000;\n" 8738 "\n" 8739 "unsigned oneTwoThree =123;\n" 8740 "int oneTwo = 12;\n" 8741 " method();\n" 8742 "float k= 2;\n" 8743 "int ll=10000;\n" 8744 "}", 8745 Alignment)); 8746 Alignment.AlignConsecutiveAssignments = false; 8747 Alignment.AlignEscapedNewlinesLeft = true; 8748 verifyFormat("#define A \\\n" 8749 " int aaaa = 12; \\\n" 8750 " float b = 23; \\\n" 8751 " const int ccc = 234; \\\n" 8752 " unsigned dddddddddd = 2345;", 8753 Alignment); 8754 Alignment.AlignEscapedNewlinesLeft = false; 8755 Alignment.ColumnLimit = 30; 8756 verifyFormat("#define A \\\n" 8757 " int aaaa = 12; \\\n" 8758 " float b = 23; \\\n" 8759 " const int ccc = 234; \\\n" 8760 " int dddddddddd = 2345;", 8761 Alignment); 8762 Alignment.ColumnLimit = 80; 8763 verifyFormat("void SomeFunction(int parameter = 1, int i = 2, int j = 3, int " 8764 "k = 4, int l = 5,\n" 8765 " int m = 6) {\n" 8766 " const int j = 10;\n" 8767 " otherThing = 1;\n" 8768 "}", 8769 Alignment); 8770 verifyFormat("void SomeFunction(int parameter = 0) {\n" 8771 " int const i = 1;\n" 8772 " int * j = 2;\n" 8773 " int big = 10000;\n" 8774 "}", 8775 Alignment); 8776 verifyFormat("class C {\n" 8777 "public:\n" 8778 " int i = 1;\n" 8779 " virtual void f() = 0;\n" 8780 "};", 8781 Alignment); 8782 verifyFormat("float i = 1;\n" 8783 "if (SomeType t = getSomething()) {\n" 8784 "}\n" 8785 "const unsigned j = 2;\n" 8786 "int big = 10000;", 8787 Alignment); 8788 verifyFormat("float j = 7;\n" 8789 "for (int k = 0; k < N; ++k) {\n" 8790 "}\n" 8791 "unsigned j = 2;\n" 8792 "int big = 10000;\n" 8793 "}", 8794 Alignment); 8795 Alignment.BreakBeforeBinaryOperators = FormatStyle::BOS_All; 8796 verifyFormat("float i = 1;\n" 8797 "LooooooooooongType loooooooooooooooooooooongVariable\n" 8798 " = someLooooooooooooooooongFunction();\n" 8799 "int j = 2;", 8800 Alignment); 8801 Alignment.BreakBeforeBinaryOperators = FormatStyle::BOS_None; 8802 verifyFormat("int i = 1;\n" 8803 "LooooooooooongType loooooooooooooooooooooongVariable =\n" 8804 " someLooooooooooooooooongFunction();\n" 8805 "int j = 2;", 8806 Alignment); 8807 // FIXME: Should align all three declarations 8808 verifyFormat( 8809 "int i = 1;\n" 8810 "SomeType a = SomeFunction(looooooooooooooooooooooongParameterA,\n" 8811 " loooooooooooooooooooooongParameterB);\n" 8812 "int j = 2;", 8813 Alignment); 8814 8815 // Test interactions with ColumnLimit and AlignConsecutiveAssignments: 8816 // We expect declarations and assignments to align, as long as it doesn't 8817 // exceed the column limit, starting a new alignemnt sequence whenever it 8818 // happens. 8819 Alignment.AlignConsecutiveAssignments = true; 8820 Alignment.ColumnLimit = 30; 8821 verifyFormat("float ii = 1;\n" 8822 "unsigned j = 2;\n" 8823 "int someVerylongVariable = 1;\n" 8824 "AnotherLongType ll = 123456;\n" 8825 "VeryVeryLongType k = 2;\n" 8826 "int myvar = 1;", 8827 Alignment); 8828 Alignment.ColumnLimit = 80; 8829 } 8830 8831 TEST_F(FormatTest, LinuxBraceBreaking) { 8832 FormatStyle LinuxBraceStyle = getLLVMStyle(); 8833 LinuxBraceStyle.BreakBeforeBraces = FormatStyle::BS_Linux; 8834 verifyFormat("namespace a\n" 8835 "{\n" 8836 "class A\n" 8837 "{\n" 8838 " void f()\n" 8839 " {\n" 8840 " if (true) {\n" 8841 " a();\n" 8842 " b();\n" 8843 " }\n" 8844 " }\n" 8845 " void g() { return; }\n" 8846 "};\n" 8847 "struct B {\n" 8848 " int x;\n" 8849 "};\n" 8850 "}\n", 8851 LinuxBraceStyle); 8852 verifyFormat("enum X {\n" 8853 " Y = 0,\n" 8854 "}\n", 8855 LinuxBraceStyle); 8856 verifyFormat("struct S {\n" 8857 " int Type;\n" 8858 " union {\n" 8859 " int x;\n" 8860 " double y;\n" 8861 " } Value;\n" 8862 " class C\n" 8863 " {\n" 8864 " MyFavoriteType Value;\n" 8865 " } Class;\n" 8866 "}\n", 8867 LinuxBraceStyle); 8868 } 8869 8870 TEST_F(FormatTest, MozillaBraceBreaking) { 8871 FormatStyle MozillaBraceStyle = getLLVMStyle(); 8872 MozillaBraceStyle.BreakBeforeBraces = FormatStyle::BS_Mozilla; 8873 verifyFormat("namespace a {\n" 8874 "class A\n" 8875 "{\n" 8876 " void f()\n" 8877 " {\n" 8878 " if (true) {\n" 8879 " a();\n" 8880 " b();\n" 8881 " }\n" 8882 " }\n" 8883 " void g() { return; }\n" 8884 "};\n" 8885 "enum E\n" 8886 "{\n" 8887 " A,\n" 8888 " // foo\n" 8889 " B,\n" 8890 " C\n" 8891 "};\n" 8892 "struct B\n" 8893 "{\n" 8894 " int x;\n" 8895 "};\n" 8896 "}\n", 8897 MozillaBraceStyle); 8898 verifyFormat("struct S\n" 8899 "{\n" 8900 " int Type;\n" 8901 " union\n" 8902 " {\n" 8903 " int x;\n" 8904 " double y;\n" 8905 " } Value;\n" 8906 " class C\n" 8907 " {\n" 8908 " MyFavoriteType Value;\n" 8909 " } Class;\n" 8910 "}\n", 8911 MozillaBraceStyle); 8912 } 8913 8914 TEST_F(FormatTest, StroustrupBraceBreaking) { 8915 FormatStyle StroustrupBraceStyle = getLLVMStyle(); 8916 StroustrupBraceStyle.BreakBeforeBraces = FormatStyle::BS_Stroustrup; 8917 verifyFormat("namespace a {\n" 8918 "class A {\n" 8919 " void f()\n" 8920 " {\n" 8921 " if (true) {\n" 8922 " a();\n" 8923 " b();\n" 8924 " }\n" 8925 " }\n" 8926 " void g() { return; }\n" 8927 "};\n" 8928 "struct B {\n" 8929 " int x;\n" 8930 "};\n" 8931 "}\n", 8932 StroustrupBraceStyle); 8933 8934 verifyFormat("void foo()\n" 8935 "{\n" 8936 " if (a) {\n" 8937 " a();\n" 8938 " }\n" 8939 " else {\n" 8940 " b();\n" 8941 " }\n" 8942 "}\n", 8943 StroustrupBraceStyle); 8944 8945 verifyFormat("#ifdef _DEBUG\n" 8946 "int foo(int i = 0)\n" 8947 "#else\n" 8948 "int foo(int i = 5)\n" 8949 "#endif\n" 8950 "{\n" 8951 " return i;\n" 8952 "}", 8953 StroustrupBraceStyle); 8954 8955 verifyFormat("void foo() {}\n" 8956 "void bar()\n" 8957 "#ifdef _DEBUG\n" 8958 "{\n" 8959 " foo();\n" 8960 "}\n" 8961 "#else\n" 8962 "{\n" 8963 "}\n" 8964 "#endif", 8965 StroustrupBraceStyle); 8966 8967 verifyFormat("void foobar() { int i = 5; }\n" 8968 "#ifdef _DEBUG\n" 8969 "void bar() {}\n" 8970 "#else\n" 8971 "void bar() { foobar(); }\n" 8972 "#endif", 8973 StroustrupBraceStyle); 8974 } 8975 8976 TEST_F(FormatTest, AllmanBraceBreaking) { 8977 FormatStyle AllmanBraceStyle = getLLVMStyle(); 8978 AllmanBraceStyle.BreakBeforeBraces = FormatStyle::BS_Allman; 8979 verifyFormat("namespace a\n" 8980 "{\n" 8981 "class A\n" 8982 "{\n" 8983 " void f()\n" 8984 " {\n" 8985 " if (true)\n" 8986 " {\n" 8987 " a();\n" 8988 " b();\n" 8989 " }\n" 8990 " }\n" 8991 " void g() { return; }\n" 8992 "};\n" 8993 "struct B\n" 8994 "{\n" 8995 " int x;\n" 8996 "};\n" 8997 "}", 8998 AllmanBraceStyle); 8999 9000 verifyFormat("void f()\n" 9001 "{\n" 9002 " if (true)\n" 9003 " {\n" 9004 " a();\n" 9005 " }\n" 9006 " else if (false)\n" 9007 " {\n" 9008 " b();\n" 9009 " }\n" 9010 " else\n" 9011 " {\n" 9012 " c();\n" 9013 " }\n" 9014 "}\n", 9015 AllmanBraceStyle); 9016 9017 verifyFormat("void f()\n" 9018 "{\n" 9019 " for (int i = 0; i < 10; ++i)\n" 9020 " {\n" 9021 " a();\n" 9022 " }\n" 9023 " while (false)\n" 9024 " {\n" 9025 " b();\n" 9026 " }\n" 9027 " do\n" 9028 " {\n" 9029 " c();\n" 9030 " } while (false)\n" 9031 "}\n", 9032 AllmanBraceStyle); 9033 9034 verifyFormat("void f(int a)\n" 9035 "{\n" 9036 " switch (a)\n" 9037 " {\n" 9038 " case 0:\n" 9039 " break;\n" 9040 " case 1:\n" 9041 " {\n" 9042 " break;\n" 9043 " }\n" 9044 " case 2:\n" 9045 " {\n" 9046 " }\n" 9047 " break;\n" 9048 " default:\n" 9049 " break;\n" 9050 " }\n" 9051 "}\n", 9052 AllmanBraceStyle); 9053 9054 verifyFormat("enum X\n" 9055 "{\n" 9056 " Y = 0,\n" 9057 "}\n", 9058 AllmanBraceStyle); 9059 verifyFormat("enum X\n" 9060 "{\n" 9061 " Y = 0\n" 9062 "}\n", 9063 AllmanBraceStyle); 9064 9065 verifyFormat("@interface BSApplicationController ()\n" 9066 "{\n" 9067 "@private\n" 9068 " id _extraIvar;\n" 9069 "}\n" 9070 "@end\n", 9071 AllmanBraceStyle); 9072 9073 verifyFormat("#ifdef _DEBUG\n" 9074 "int foo(int i = 0)\n" 9075 "#else\n" 9076 "int foo(int i = 5)\n" 9077 "#endif\n" 9078 "{\n" 9079 " return i;\n" 9080 "}", 9081 AllmanBraceStyle); 9082 9083 verifyFormat("void foo() {}\n" 9084 "void bar()\n" 9085 "#ifdef _DEBUG\n" 9086 "{\n" 9087 " foo();\n" 9088 "}\n" 9089 "#else\n" 9090 "{\n" 9091 "}\n" 9092 "#endif", 9093 AllmanBraceStyle); 9094 9095 verifyFormat("void foobar() { int i = 5; }\n" 9096 "#ifdef _DEBUG\n" 9097 "void bar() {}\n" 9098 "#else\n" 9099 "void bar() { foobar(); }\n" 9100 "#endif", 9101 AllmanBraceStyle); 9102 9103 // This shouldn't affect ObjC blocks.. 9104 verifyFormat("[self doSomeThingWithACompletionHandler:^{\n" 9105 " // ...\n" 9106 " int i;\n" 9107 "}];", 9108 AllmanBraceStyle); 9109 verifyFormat("void (^block)(void) = ^{\n" 9110 " // ...\n" 9111 " int i;\n" 9112 "};", 9113 AllmanBraceStyle); 9114 // .. or dict literals. 9115 verifyFormat("void f()\n" 9116 "{\n" 9117 " [object someMethod:@{ @\"a\" : @\"b\" }];\n" 9118 "}", 9119 AllmanBraceStyle); 9120 verifyFormat("int f()\n" 9121 "{ // comment\n" 9122 " return 42;\n" 9123 "}", 9124 AllmanBraceStyle); 9125 9126 AllmanBraceStyle.ColumnLimit = 19; 9127 verifyFormat("void f() { int i; }", AllmanBraceStyle); 9128 AllmanBraceStyle.ColumnLimit = 18; 9129 verifyFormat("void f()\n" 9130 "{\n" 9131 " int i;\n" 9132 "}", 9133 AllmanBraceStyle); 9134 AllmanBraceStyle.ColumnLimit = 80; 9135 9136 FormatStyle BreakBeforeBraceShortIfs = AllmanBraceStyle; 9137 BreakBeforeBraceShortIfs.AllowShortIfStatementsOnASingleLine = true; 9138 BreakBeforeBraceShortIfs.AllowShortLoopsOnASingleLine = true; 9139 verifyFormat("void f(bool b)\n" 9140 "{\n" 9141 " if (b)\n" 9142 " {\n" 9143 " return;\n" 9144 " }\n" 9145 "}\n", 9146 BreakBeforeBraceShortIfs); 9147 verifyFormat("void f(bool b)\n" 9148 "{\n" 9149 " if (b) return;\n" 9150 "}\n", 9151 BreakBeforeBraceShortIfs); 9152 verifyFormat("void f(bool b)\n" 9153 "{\n" 9154 " while (b)\n" 9155 " {\n" 9156 " return;\n" 9157 " }\n" 9158 "}\n", 9159 BreakBeforeBraceShortIfs); 9160 } 9161 9162 TEST_F(FormatTest, GNUBraceBreaking) { 9163 FormatStyle GNUBraceStyle = getLLVMStyle(); 9164 GNUBraceStyle.BreakBeforeBraces = FormatStyle::BS_GNU; 9165 verifyFormat("namespace a\n" 9166 "{\n" 9167 "class A\n" 9168 "{\n" 9169 " void f()\n" 9170 " {\n" 9171 " int a;\n" 9172 " {\n" 9173 " int b;\n" 9174 " }\n" 9175 " if (true)\n" 9176 " {\n" 9177 " a();\n" 9178 " b();\n" 9179 " }\n" 9180 " }\n" 9181 " void g() { return; }\n" 9182 "}\n" 9183 "}", 9184 GNUBraceStyle); 9185 9186 verifyFormat("void f()\n" 9187 "{\n" 9188 " if (true)\n" 9189 " {\n" 9190 " a();\n" 9191 " }\n" 9192 " else if (false)\n" 9193 " {\n" 9194 " b();\n" 9195 " }\n" 9196 " else\n" 9197 " {\n" 9198 " c();\n" 9199 " }\n" 9200 "}\n", 9201 GNUBraceStyle); 9202 9203 verifyFormat("void f()\n" 9204 "{\n" 9205 " for (int i = 0; i < 10; ++i)\n" 9206 " {\n" 9207 " a();\n" 9208 " }\n" 9209 " while (false)\n" 9210 " {\n" 9211 " b();\n" 9212 " }\n" 9213 " do\n" 9214 " {\n" 9215 " c();\n" 9216 " }\n" 9217 " while (false);\n" 9218 "}\n", 9219 GNUBraceStyle); 9220 9221 verifyFormat("void f(int a)\n" 9222 "{\n" 9223 " switch (a)\n" 9224 " {\n" 9225 " case 0:\n" 9226 " break;\n" 9227 " case 1:\n" 9228 " {\n" 9229 " break;\n" 9230 " }\n" 9231 " case 2:\n" 9232 " {\n" 9233 " }\n" 9234 " break;\n" 9235 " default:\n" 9236 " break;\n" 9237 " }\n" 9238 "}\n", 9239 GNUBraceStyle); 9240 9241 verifyFormat("enum X\n" 9242 "{\n" 9243 " Y = 0,\n" 9244 "}\n", 9245 GNUBraceStyle); 9246 9247 verifyFormat("@interface BSApplicationController ()\n" 9248 "{\n" 9249 "@private\n" 9250 " id _extraIvar;\n" 9251 "}\n" 9252 "@end\n", 9253 GNUBraceStyle); 9254 9255 verifyFormat("#ifdef _DEBUG\n" 9256 "int foo(int i = 0)\n" 9257 "#else\n" 9258 "int foo(int i = 5)\n" 9259 "#endif\n" 9260 "{\n" 9261 " return i;\n" 9262 "}", 9263 GNUBraceStyle); 9264 9265 verifyFormat("void foo() {}\n" 9266 "void bar()\n" 9267 "#ifdef _DEBUG\n" 9268 "{\n" 9269 " foo();\n" 9270 "}\n" 9271 "#else\n" 9272 "{\n" 9273 "}\n" 9274 "#endif", 9275 GNUBraceStyle); 9276 9277 verifyFormat("void foobar() { int i = 5; }\n" 9278 "#ifdef _DEBUG\n" 9279 "void bar() {}\n" 9280 "#else\n" 9281 "void bar() { foobar(); }\n" 9282 "#endif", 9283 GNUBraceStyle); 9284 } 9285 9286 TEST_F(FormatTest, WebKitBraceBreaking) { 9287 FormatStyle WebKitBraceStyle = getLLVMStyle(); 9288 WebKitBraceStyle.BreakBeforeBraces = FormatStyle::BS_WebKit; 9289 verifyFormat("namespace a {\n" 9290 "class A {\n" 9291 " void f()\n" 9292 " {\n" 9293 " if (true) {\n" 9294 " a();\n" 9295 " b();\n" 9296 " }\n" 9297 " }\n" 9298 " void g() { return; }\n" 9299 "};\n" 9300 "enum E {\n" 9301 " A,\n" 9302 " // foo\n" 9303 " B,\n" 9304 " C\n" 9305 "};\n" 9306 "struct B {\n" 9307 " int x;\n" 9308 "};\n" 9309 "}\n", 9310 WebKitBraceStyle); 9311 verifyFormat("struct S {\n" 9312 " int Type;\n" 9313 " union {\n" 9314 " int x;\n" 9315 " double y;\n" 9316 " } Value;\n" 9317 " class C {\n" 9318 " MyFavoriteType Value;\n" 9319 " } Class;\n" 9320 "};\n", 9321 WebKitBraceStyle); 9322 } 9323 9324 TEST_F(FormatTest, CatchExceptionReferenceBinding) { 9325 verifyFormat("void f() {\n" 9326 " try {\n" 9327 " } catch (const Exception &e) {\n" 9328 " }\n" 9329 "}\n", 9330 getLLVMStyle()); 9331 } 9332 9333 TEST_F(FormatTest, UnderstandsPragmas) { 9334 verifyFormat("#pragma omp reduction(| : var)"); 9335 verifyFormat("#pragma omp reduction(+ : var)"); 9336 9337 EXPECT_EQ("#pragma mark Any non-hyphenated or hyphenated string " 9338 "(including parentheses).", 9339 format("#pragma mark Any non-hyphenated or hyphenated string " 9340 "(including parentheses).")); 9341 } 9342 9343 TEST_F(FormatTest, UnderstandPragmaOption) { 9344 verifyFormat("#pragma option -C -A"); 9345 9346 EXPECT_EQ("#pragma option -C -A", format("#pragma option -C -A")); 9347 } 9348 9349 #define EXPECT_ALL_STYLES_EQUAL(Styles) \ 9350 for (size_t i = 1; i < Styles.size(); ++i) \ 9351 EXPECT_EQ(Styles[0], Styles[i]) << "Style #" << i << " of " << Styles.size() \ 9352 << " differs from Style #0" 9353 9354 TEST_F(FormatTest, GetsPredefinedStyleByName) { 9355 SmallVector<FormatStyle, 3> Styles; 9356 Styles.resize(3); 9357 9358 Styles[0] = getLLVMStyle(); 9359 EXPECT_TRUE(getPredefinedStyle("LLVM", FormatStyle::LK_Cpp, &Styles[1])); 9360 EXPECT_TRUE(getPredefinedStyle("lLvM", FormatStyle::LK_Cpp, &Styles[2])); 9361 EXPECT_ALL_STYLES_EQUAL(Styles); 9362 9363 Styles[0] = getGoogleStyle(); 9364 EXPECT_TRUE(getPredefinedStyle("Google", FormatStyle::LK_Cpp, &Styles[1])); 9365 EXPECT_TRUE(getPredefinedStyle("gOOgle", FormatStyle::LK_Cpp, &Styles[2])); 9366 EXPECT_ALL_STYLES_EQUAL(Styles); 9367 9368 Styles[0] = getGoogleStyle(FormatStyle::LK_JavaScript); 9369 EXPECT_TRUE( 9370 getPredefinedStyle("Google", FormatStyle::LK_JavaScript, &Styles[1])); 9371 EXPECT_TRUE( 9372 getPredefinedStyle("gOOgle", FormatStyle::LK_JavaScript, &Styles[2])); 9373 EXPECT_ALL_STYLES_EQUAL(Styles); 9374 9375 Styles[0] = getChromiumStyle(FormatStyle::LK_Cpp); 9376 EXPECT_TRUE(getPredefinedStyle("Chromium", FormatStyle::LK_Cpp, &Styles[1])); 9377 EXPECT_TRUE(getPredefinedStyle("cHRoMiUM", FormatStyle::LK_Cpp, &Styles[2])); 9378 EXPECT_ALL_STYLES_EQUAL(Styles); 9379 9380 Styles[0] = getMozillaStyle(); 9381 EXPECT_TRUE(getPredefinedStyle("Mozilla", FormatStyle::LK_Cpp, &Styles[1])); 9382 EXPECT_TRUE(getPredefinedStyle("moZILla", FormatStyle::LK_Cpp, &Styles[2])); 9383 EXPECT_ALL_STYLES_EQUAL(Styles); 9384 9385 Styles[0] = getWebKitStyle(); 9386 EXPECT_TRUE(getPredefinedStyle("WebKit", FormatStyle::LK_Cpp, &Styles[1])); 9387 EXPECT_TRUE(getPredefinedStyle("wEbKit", FormatStyle::LK_Cpp, &Styles[2])); 9388 EXPECT_ALL_STYLES_EQUAL(Styles); 9389 9390 Styles[0] = getGNUStyle(); 9391 EXPECT_TRUE(getPredefinedStyle("GNU", FormatStyle::LK_Cpp, &Styles[1])); 9392 EXPECT_TRUE(getPredefinedStyle("gnU", FormatStyle::LK_Cpp, &Styles[2])); 9393 EXPECT_ALL_STYLES_EQUAL(Styles); 9394 9395 EXPECT_FALSE(getPredefinedStyle("qwerty", FormatStyle::LK_Cpp, &Styles[0])); 9396 } 9397 9398 TEST_F(FormatTest, GetsCorrectBasedOnStyle) { 9399 SmallVector<FormatStyle, 8> Styles; 9400 Styles.resize(2); 9401 9402 Styles[0] = getGoogleStyle(); 9403 Styles[1] = getLLVMStyle(); 9404 EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google", &Styles[1]).value()); 9405 EXPECT_ALL_STYLES_EQUAL(Styles); 9406 9407 Styles.resize(5); 9408 Styles[0] = getGoogleStyle(FormatStyle::LK_JavaScript); 9409 Styles[1] = getLLVMStyle(); 9410 Styles[1].Language = FormatStyle::LK_JavaScript; 9411 EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google", &Styles[1]).value()); 9412 9413 Styles[2] = getLLVMStyle(); 9414 Styles[2].Language = FormatStyle::LK_JavaScript; 9415 EXPECT_EQ(0, parseConfiguration("Language: JavaScript\n" 9416 "BasedOnStyle: Google", 9417 &Styles[2]) 9418 .value()); 9419 9420 Styles[3] = getLLVMStyle(); 9421 Styles[3].Language = FormatStyle::LK_JavaScript; 9422 EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google\n" 9423 "Language: JavaScript", 9424 &Styles[3]) 9425 .value()); 9426 9427 Styles[4] = getLLVMStyle(); 9428 Styles[4].Language = FormatStyle::LK_JavaScript; 9429 EXPECT_EQ(0, parseConfiguration("---\n" 9430 "BasedOnStyle: LLVM\n" 9431 "IndentWidth: 123\n" 9432 "---\n" 9433 "BasedOnStyle: Google\n" 9434 "Language: JavaScript", 9435 &Styles[4]) 9436 .value()); 9437 EXPECT_ALL_STYLES_EQUAL(Styles); 9438 } 9439 9440 #define CHECK_PARSE_BOOL_FIELD(FIELD, CONFIG_NAME) \ 9441 Style.FIELD = false; \ 9442 EXPECT_EQ(0, parseConfiguration(CONFIG_NAME ": true", &Style).value()); \ 9443 EXPECT_TRUE(Style.FIELD); \ 9444 EXPECT_EQ(0, parseConfiguration(CONFIG_NAME ": false", &Style).value()); \ 9445 EXPECT_FALSE(Style.FIELD); 9446 9447 #define CHECK_PARSE_BOOL(FIELD) CHECK_PARSE_BOOL_FIELD(FIELD, #FIELD) 9448 9449 #define CHECK_PARSE_NESTED_BOOL_FIELD(STRUCT, FIELD, CONFIG_NAME) \ 9450 Style.STRUCT.FIELD = false; \ 9451 EXPECT_EQ(0, \ 9452 parseConfiguration(#STRUCT ":\n " CONFIG_NAME ": true", &Style) \ 9453 .value()); \ 9454 EXPECT_TRUE(Style.STRUCT.FIELD); \ 9455 EXPECT_EQ(0, \ 9456 parseConfiguration(#STRUCT ":\n " CONFIG_NAME ": false", &Style) \ 9457 .value()); \ 9458 EXPECT_FALSE(Style.STRUCT.FIELD); 9459 9460 #define CHECK_PARSE_NESTED_BOOL(STRUCT, FIELD) \ 9461 CHECK_PARSE_NESTED_BOOL_FIELD(STRUCT, FIELD, #FIELD) 9462 9463 #define CHECK_PARSE(TEXT, FIELD, VALUE) \ 9464 EXPECT_NE(VALUE, Style.FIELD); \ 9465 EXPECT_EQ(0, parseConfiguration(TEXT, &Style).value()); \ 9466 EXPECT_EQ(VALUE, Style.FIELD) 9467 9468 TEST_F(FormatTest, ParsesConfigurationBools) { 9469 FormatStyle Style = {}; 9470 Style.Language = FormatStyle::LK_Cpp; 9471 CHECK_PARSE_BOOL(AlignAfterOpenBracket); 9472 CHECK_PARSE_BOOL(AlignEscapedNewlinesLeft); 9473 CHECK_PARSE_BOOL(AlignOperands); 9474 CHECK_PARSE_BOOL(AlignTrailingComments); 9475 CHECK_PARSE_BOOL(AlignConsecutiveAssignments); 9476 CHECK_PARSE_BOOL(AlignConsecutiveDeclarations); 9477 CHECK_PARSE_BOOL(AllowAllParametersOfDeclarationOnNextLine); 9478 CHECK_PARSE_BOOL(AllowShortBlocksOnASingleLine); 9479 CHECK_PARSE_BOOL(AllowShortCaseLabelsOnASingleLine); 9480 CHECK_PARSE_BOOL(AllowShortIfStatementsOnASingleLine); 9481 CHECK_PARSE_BOOL(AllowShortLoopsOnASingleLine); 9482 CHECK_PARSE_BOOL(AlwaysBreakTemplateDeclarations); 9483 CHECK_PARSE_BOOL(BinPackParameters); 9484 CHECK_PARSE_BOOL(BinPackArguments); 9485 CHECK_PARSE_BOOL(BreakBeforeTernaryOperators); 9486 CHECK_PARSE_BOOL(BreakConstructorInitializersBeforeComma); 9487 CHECK_PARSE_BOOL(ConstructorInitializerAllOnOneLineOrOnePerLine); 9488 CHECK_PARSE_BOOL(DerivePointerAlignment); 9489 CHECK_PARSE_BOOL_FIELD(DerivePointerAlignment, "DerivePointerBinding"); 9490 CHECK_PARSE_BOOL(IndentCaseLabels); 9491 CHECK_PARSE_BOOL(IndentWrappedFunctionNames); 9492 CHECK_PARSE_BOOL(KeepEmptyLinesAtTheStartOfBlocks); 9493 CHECK_PARSE_BOOL(ObjCSpaceAfterProperty); 9494 CHECK_PARSE_BOOL(ObjCSpaceBeforeProtocolList); 9495 CHECK_PARSE_BOOL(Cpp11BracedListStyle); 9496 CHECK_PARSE_BOOL(SpacesInParentheses); 9497 CHECK_PARSE_BOOL(SpacesInSquareBrackets); 9498 CHECK_PARSE_BOOL(SpacesInAngles); 9499 CHECK_PARSE_BOOL(SpaceInEmptyParentheses); 9500 CHECK_PARSE_BOOL(SpacesInContainerLiterals); 9501 CHECK_PARSE_BOOL(SpacesInCStyleCastParentheses); 9502 CHECK_PARSE_BOOL(SpaceAfterCStyleCast); 9503 CHECK_PARSE_BOOL(SpaceBeforeAssignmentOperators); 9504 9505 CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterClass); 9506 CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterControlStatement); 9507 CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterEnum); 9508 CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterFunction); 9509 CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterNamespace); 9510 CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterObjCDeclaration); 9511 CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterStruct); 9512 CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterUnion); 9513 CHECK_PARSE_NESTED_BOOL(BraceWrapping, BeforeCatch); 9514 CHECK_PARSE_NESTED_BOOL(BraceWrapping, BeforeElse); 9515 CHECK_PARSE_NESTED_BOOL(BraceWrapping, IndentBraces); 9516 } 9517 9518 #undef CHECK_PARSE_BOOL 9519 9520 TEST_F(FormatTest, ParsesConfiguration) { 9521 FormatStyle Style = {}; 9522 Style.Language = FormatStyle::LK_Cpp; 9523 CHECK_PARSE("AccessModifierOffset: -1234", AccessModifierOffset, -1234); 9524 CHECK_PARSE("ConstructorInitializerIndentWidth: 1234", 9525 ConstructorInitializerIndentWidth, 1234u); 9526 CHECK_PARSE("ObjCBlockIndentWidth: 1234", ObjCBlockIndentWidth, 1234u); 9527 CHECK_PARSE("ColumnLimit: 1234", ColumnLimit, 1234u); 9528 CHECK_PARSE("MaxEmptyLinesToKeep: 1234", MaxEmptyLinesToKeep, 1234u); 9529 CHECK_PARSE("PenaltyBreakBeforeFirstCallParameter: 1234", 9530 PenaltyBreakBeforeFirstCallParameter, 1234u); 9531 CHECK_PARSE("PenaltyExcessCharacter: 1234", PenaltyExcessCharacter, 1234u); 9532 CHECK_PARSE("PenaltyReturnTypeOnItsOwnLine: 1234", 9533 PenaltyReturnTypeOnItsOwnLine, 1234u); 9534 CHECK_PARSE("SpacesBeforeTrailingComments: 1234", 9535 SpacesBeforeTrailingComments, 1234u); 9536 CHECK_PARSE("IndentWidth: 32", IndentWidth, 32u); 9537 CHECK_PARSE("ContinuationIndentWidth: 11", ContinuationIndentWidth, 11u); 9538 9539 Style.PointerAlignment = FormatStyle::PAS_Middle; 9540 CHECK_PARSE("PointerAlignment: Left", PointerAlignment, 9541 FormatStyle::PAS_Left); 9542 CHECK_PARSE("PointerAlignment: Right", PointerAlignment, 9543 FormatStyle::PAS_Right); 9544 CHECK_PARSE("PointerAlignment: Middle", PointerAlignment, 9545 FormatStyle::PAS_Middle); 9546 // For backward compatibility: 9547 CHECK_PARSE("PointerBindsToType: Left", PointerAlignment, 9548 FormatStyle::PAS_Left); 9549 CHECK_PARSE("PointerBindsToType: Right", PointerAlignment, 9550 FormatStyle::PAS_Right); 9551 CHECK_PARSE("PointerBindsToType: Middle", PointerAlignment, 9552 FormatStyle::PAS_Middle); 9553 9554 Style.Standard = FormatStyle::LS_Auto; 9555 CHECK_PARSE("Standard: Cpp03", Standard, FormatStyle::LS_Cpp03); 9556 CHECK_PARSE("Standard: Cpp11", Standard, FormatStyle::LS_Cpp11); 9557 CHECK_PARSE("Standard: C++03", Standard, FormatStyle::LS_Cpp03); 9558 CHECK_PARSE("Standard: C++11", Standard, FormatStyle::LS_Cpp11); 9559 CHECK_PARSE("Standard: Auto", Standard, FormatStyle::LS_Auto); 9560 9561 Style.BreakBeforeBinaryOperators = FormatStyle::BOS_All; 9562 CHECK_PARSE("BreakBeforeBinaryOperators: NonAssignment", 9563 BreakBeforeBinaryOperators, FormatStyle::BOS_NonAssignment); 9564 CHECK_PARSE("BreakBeforeBinaryOperators: None", BreakBeforeBinaryOperators, 9565 FormatStyle::BOS_None); 9566 CHECK_PARSE("BreakBeforeBinaryOperators: All", BreakBeforeBinaryOperators, 9567 FormatStyle::BOS_All); 9568 // For backward compatibility: 9569 CHECK_PARSE("BreakBeforeBinaryOperators: false", BreakBeforeBinaryOperators, 9570 FormatStyle::BOS_None); 9571 CHECK_PARSE("BreakBeforeBinaryOperators: true", BreakBeforeBinaryOperators, 9572 FormatStyle::BOS_All); 9573 9574 Style.UseTab = FormatStyle::UT_ForIndentation; 9575 CHECK_PARSE("UseTab: Never", UseTab, FormatStyle::UT_Never); 9576 CHECK_PARSE("UseTab: ForIndentation", UseTab, FormatStyle::UT_ForIndentation); 9577 CHECK_PARSE("UseTab: Always", UseTab, FormatStyle::UT_Always); 9578 // For backward compatibility: 9579 CHECK_PARSE("UseTab: false", UseTab, FormatStyle::UT_Never); 9580 CHECK_PARSE("UseTab: true", UseTab, FormatStyle::UT_Always); 9581 9582 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Inline; 9583 CHECK_PARSE("AllowShortFunctionsOnASingleLine: None", 9584 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_None); 9585 CHECK_PARSE("AllowShortFunctionsOnASingleLine: Inline", 9586 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_Inline); 9587 CHECK_PARSE("AllowShortFunctionsOnASingleLine: Empty", 9588 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_Empty); 9589 CHECK_PARSE("AllowShortFunctionsOnASingleLine: All", 9590 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_All); 9591 // For backward compatibility: 9592 CHECK_PARSE("AllowShortFunctionsOnASingleLine: false", 9593 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_None); 9594 CHECK_PARSE("AllowShortFunctionsOnASingleLine: true", 9595 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_All); 9596 9597 Style.SpaceBeforeParens = FormatStyle::SBPO_Always; 9598 CHECK_PARSE("SpaceBeforeParens: Never", SpaceBeforeParens, 9599 FormatStyle::SBPO_Never); 9600 CHECK_PARSE("SpaceBeforeParens: Always", SpaceBeforeParens, 9601 FormatStyle::SBPO_Always); 9602 CHECK_PARSE("SpaceBeforeParens: ControlStatements", SpaceBeforeParens, 9603 FormatStyle::SBPO_ControlStatements); 9604 // For backward compatibility: 9605 CHECK_PARSE("SpaceAfterControlStatementKeyword: false", SpaceBeforeParens, 9606 FormatStyle::SBPO_Never); 9607 CHECK_PARSE("SpaceAfterControlStatementKeyword: true", SpaceBeforeParens, 9608 FormatStyle::SBPO_ControlStatements); 9609 9610 Style.ColumnLimit = 123; 9611 FormatStyle BaseStyle = getLLVMStyle(); 9612 CHECK_PARSE("BasedOnStyle: LLVM", ColumnLimit, BaseStyle.ColumnLimit); 9613 CHECK_PARSE("BasedOnStyle: LLVM\nColumnLimit: 1234", ColumnLimit, 1234u); 9614 9615 Style.BreakBeforeBraces = FormatStyle::BS_Stroustrup; 9616 CHECK_PARSE("BreakBeforeBraces: Attach", BreakBeforeBraces, 9617 FormatStyle::BS_Attach); 9618 CHECK_PARSE("BreakBeforeBraces: Linux", BreakBeforeBraces, 9619 FormatStyle::BS_Linux); 9620 CHECK_PARSE("BreakBeforeBraces: Mozilla", BreakBeforeBraces, 9621 FormatStyle::BS_Mozilla); 9622 CHECK_PARSE("BreakBeforeBraces: Stroustrup", BreakBeforeBraces, 9623 FormatStyle::BS_Stroustrup); 9624 CHECK_PARSE("BreakBeforeBraces: Allman", BreakBeforeBraces, 9625 FormatStyle::BS_Allman); 9626 CHECK_PARSE("BreakBeforeBraces: GNU", BreakBeforeBraces, FormatStyle::BS_GNU); 9627 CHECK_PARSE("BreakBeforeBraces: WebKit", BreakBeforeBraces, 9628 FormatStyle::BS_WebKit); 9629 CHECK_PARSE("BreakBeforeBraces: Custom", BreakBeforeBraces, 9630 FormatStyle::BS_Custom); 9631 9632 Style.AlwaysBreakAfterDefinitionReturnType = FormatStyle::DRTBS_All; 9633 CHECK_PARSE("AlwaysBreakAfterDefinitionReturnType: None", 9634 AlwaysBreakAfterDefinitionReturnType, FormatStyle::DRTBS_None); 9635 CHECK_PARSE("AlwaysBreakAfterDefinitionReturnType: All", 9636 AlwaysBreakAfterDefinitionReturnType, FormatStyle::DRTBS_All); 9637 CHECK_PARSE("AlwaysBreakAfterDefinitionReturnType: TopLevel", 9638 AlwaysBreakAfterDefinitionReturnType, 9639 FormatStyle::DRTBS_TopLevel); 9640 9641 Style.NamespaceIndentation = FormatStyle::NI_All; 9642 CHECK_PARSE("NamespaceIndentation: None", NamespaceIndentation, 9643 FormatStyle::NI_None); 9644 CHECK_PARSE("NamespaceIndentation: Inner", NamespaceIndentation, 9645 FormatStyle::NI_Inner); 9646 CHECK_PARSE("NamespaceIndentation: All", NamespaceIndentation, 9647 FormatStyle::NI_All); 9648 9649 Style.ForEachMacros.clear(); 9650 std::vector<std::string> BoostForeach; 9651 BoostForeach.push_back("BOOST_FOREACH"); 9652 CHECK_PARSE("ForEachMacros: [BOOST_FOREACH]", ForEachMacros, BoostForeach); 9653 std::vector<std::string> BoostAndQForeach; 9654 BoostAndQForeach.push_back("BOOST_FOREACH"); 9655 BoostAndQForeach.push_back("Q_FOREACH"); 9656 CHECK_PARSE("ForEachMacros: [BOOST_FOREACH, Q_FOREACH]", ForEachMacros, 9657 BoostAndQForeach); 9658 } 9659 9660 TEST_F(FormatTest, ParsesConfigurationWithLanguages) { 9661 FormatStyle Style = {}; 9662 Style.Language = FormatStyle::LK_Cpp; 9663 CHECK_PARSE("Language: Cpp\n" 9664 "IndentWidth: 12", 9665 IndentWidth, 12u); 9666 EXPECT_EQ(parseConfiguration("Language: JavaScript\n" 9667 "IndentWidth: 34", 9668 &Style), 9669 ParseError::Unsuitable); 9670 EXPECT_EQ(12u, Style.IndentWidth); 9671 CHECK_PARSE("IndentWidth: 56", IndentWidth, 56u); 9672 EXPECT_EQ(FormatStyle::LK_Cpp, Style.Language); 9673 9674 Style.Language = FormatStyle::LK_JavaScript; 9675 CHECK_PARSE("Language: JavaScript\n" 9676 "IndentWidth: 12", 9677 IndentWidth, 12u); 9678 CHECK_PARSE("IndentWidth: 23", IndentWidth, 23u); 9679 EXPECT_EQ(parseConfiguration("Language: Cpp\n" 9680 "IndentWidth: 34", 9681 &Style), 9682 ParseError::Unsuitable); 9683 EXPECT_EQ(23u, Style.IndentWidth); 9684 CHECK_PARSE("IndentWidth: 56", IndentWidth, 56u); 9685 EXPECT_EQ(FormatStyle::LK_JavaScript, Style.Language); 9686 9687 CHECK_PARSE("BasedOnStyle: LLVM\n" 9688 "IndentWidth: 67", 9689 IndentWidth, 67u); 9690 9691 CHECK_PARSE("---\n" 9692 "Language: JavaScript\n" 9693 "IndentWidth: 12\n" 9694 "---\n" 9695 "Language: Cpp\n" 9696 "IndentWidth: 34\n" 9697 "...\n", 9698 IndentWidth, 12u); 9699 9700 Style.Language = FormatStyle::LK_Cpp; 9701 CHECK_PARSE("---\n" 9702 "Language: JavaScript\n" 9703 "IndentWidth: 12\n" 9704 "---\n" 9705 "Language: Cpp\n" 9706 "IndentWidth: 34\n" 9707 "...\n", 9708 IndentWidth, 34u); 9709 CHECK_PARSE("---\n" 9710 "IndentWidth: 78\n" 9711 "---\n" 9712 "Language: JavaScript\n" 9713 "IndentWidth: 56\n" 9714 "...\n", 9715 IndentWidth, 78u); 9716 9717 Style.ColumnLimit = 123; 9718 Style.IndentWidth = 234; 9719 Style.BreakBeforeBraces = FormatStyle::BS_Linux; 9720 Style.TabWidth = 345; 9721 EXPECT_FALSE(parseConfiguration("---\n" 9722 "IndentWidth: 456\n" 9723 "BreakBeforeBraces: Allman\n" 9724 "---\n" 9725 "Language: JavaScript\n" 9726 "IndentWidth: 111\n" 9727 "TabWidth: 111\n" 9728 "---\n" 9729 "Language: Cpp\n" 9730 "BreakBeforeBraces: Stroustrup\n" 9731 "TabWidth: 789\n" 9732 "...\n", 9733 &Style)); 9734 EXPECT_EQ(123u, Style.ColumnLimit); 9735 EXPECT_EQ(456u, Style.IndentWidth); 9736 EXPECT_EQ(FormatStyle::BS_Stroustrup, Style.BreakBeforeBraces); 9737 EXPECT_EQ(789u, Style.TabWidth); 9738 9739 EXPECT_EQ(parseConfiguration("---\n" 9740 "Language: JavaScript\n" 9741 "IndentWidth: 56\n" 9742 "---\n" 9743 "IndentWidth: 78\n" 9744 "...\n", 9745 &Style), 9746 ParseError::Error); 9747 EXPECT_EQ(parseConfiguration("---\n" 9748 "Language: JavaScript\n" 9749 "IndentWidth: 56\n" 9750 "---\n" 9751 "Language: JavaScript\n" 9752 "IndentWidth: 78\n" 9753 "...\n", 9754 &Style), 9755 ParseError::Error); 9756 9757 EXPECT_EQ(FormatStyle::LK_Cpp, Style.Language); 9758 } 9759 9760 #undef CHECK_PARSE 9761 9762 TEST_F(FormatTest, UsesLanguageForBasedOnStyle) { 9763 FormatStyle Style = {}; 9764 Style.Language = FormatStyle::LK_JavaScript; 9765 Style.BreakBeforeTernaryOperators = true; 9766 EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google", &Style).value()); 9767 EXPECT_FALSE(Style.BreakBeforeTernaryOperators); 9768 9769 Style.BreakBeforeTernaryOperators = true; 9770 EXPECT_EQ(0, parseConfiguration("---\n" 9771 "BasedOnStyle: Google\n" 9772 "---\n" 9773 "Language: JavaScript\n" 9774 "IndentWidth: 76\n" 9775 "...\n", 9776 &Style) 9777 .value()); 9778 EXPECT_FALSE(Style.BreakBeforeTernaryOperators); 9779 EXPECT_EQ(76u, Style.IndentWidth); 9780 EXPECT_EQ(FormatStyle::LK_JavaScript, Style.Language); 9781 } 9782 9783 TEST_F(FormatTest, ConfigurationRoundTripTest) { 9784 FormatStyle Style = getLLVMStyle(); 9785 std::string YAML = configurationAsText(Style); 9786 FormatStyle ParsedStyle = {}; 9787 ParsedStyle.Language = FormatStyle::LK_Cpp; 9788 EXPECT_EQ(0, parseConfiguration(YAML, &ParsedStyle).value()); 9789 EXPECT_EQ(Style, ParsedStyle); 9790 } 9791 9792 TEST_F(FormatTest, WorksFor8bitEncodings) { 9793 EXPECT_EQ("\"\xce\xe4\xed\xe0\xe6\xe4\xfb \xe2 \"\n" 9794 "\"\xf1\xf2\xf3\xe4\xb8\xed\xf3\xfe \"\n" 9795 "\"\xe7\xe8\xec\xed\xfe\xfe \"\n" 9796 "\"\xef\xee\xf0\xf3...\"", 9797 format("\"\xce\xe4\xed\xe0\xe6\xe4\xfb \xe2 " 9798 "\xf1\xf2\xf3\xe4\xb8\xed\xf3\xfe \xe7\xe8\xec\xed\xfe\xfe " 9799 "\xef\xee\xf0\xf3...\"", 9800 getLLVMStyleWithColumns(12))); 9801 } 9802 9803 TEST_F(FormatTest, HandlesUTF8BOM) { 9804 EXPECT_EQ("\xef\xbb\xbf", format("\xef\xbb\xbf")); 9805 EXPECT_EQ("\xef\xbb\xbf#include <iostream>", 9806 format("\xef\xbb\xbf#include <iostream>")); 9807 EXPECT_EQ("\xef\xbb\xbf\n#include <iostream>", 9808 format("\xef\xbb\xbf\n#include <iostream>")); 9809 } 9810 9811 // FIXME: Encode Cyrillic and CJK characters below to appease MS compilers. 9812 #if !defined(_MSC_VER) 9813 9814 TEST_F(FormatTest, CountsUTF8CharactersProperly) { 9815 verifyFormat("\"Однажды в студёную зимнюю пору...\"", 9816 getLLVMStyleWithColumns(35)); 9817 verifyFormat("\"一 二 三 四 五 六 七 八 九 十\"", 9818 getLLVMStyleWithColumns(31)); 9819 verifyFormat("// Однажды в студёную зимнюю пору...", 9820 getLLVMStyleWithColumns(36)); 9821 verifyFormat("// 一 二 三 四 五 六 七 八 九 十", getLLVMStyleWithColumns(32)); 9822 verifyFormat("/* Однажды в студёную зимнюю пору... */", 9823 getLLVMStyleWithColumns(39)); 9824 verifyFormat("/* 一 二 三 四 五 六 七 八 九 十 */", 9825 getLLVMStyleWithColumns(35)); 9826 } 9827 9828 TEST_F(FormatTest, SplitsUTF8Strings) { 9829 // Non-printable characters' width is currently considered to be the length in 9830 // bytes in UTF8. The characters can be displayed in very different manner 9831 // (zero-width, single width with a substitution glyph, expanded to their code 9832 // (e.g. "<8d>"), so there's no single correct way to handle them. 9833 EXPECT_EQ("\"aaaaÄ\"\n" 9834 "\"\xc2\x8d\";", 9835 format("\"aaaaÄ\xc2\x8d\";", getLLVMStyleWithColumns(10))); 9836 EXPECT_EQ("\"aaaaaaaÄ\"\n" 9837 "\"\xc2\x8d\";", 9838 format("\"aaaaaaaÄ\xc2\x8d\";", getLLVMStyleWithColumns(10))); 9839 EXPECT_EQ("\"Однажды, в \"\n" 9840 "\"студёную \"\n" 9841 "\"зимнюю \"\n" 9842 "\"пору,\"", 9843 format("\"Однажды, в студёную зимнюю пору,\"", 9844 getLLVMStyleWithColumns(13))); 9845 EXPECT_EQ( 9846 "\"一 二 三 \"\n" 9847 "\"四 五六 \"\n" 9848 "\"七 八 九 \"\n" 9849 "\"十\"", 9850 format("\"一 二 三 四 五六 七 八 九 十\"", getLLVMStyleWithColumns(11))); 9851 EXPECT_EQ("\"一\t二 \"\n" 9852 "\"\t三 \"\n" 9853 "\"四 五\t六 \"\n" 9854 "\"\t七 \"\n" 9855 "\"八九十\tqq\"", 9856 format("\"一\t二 \t三 四 五\t六 \t七 八九十\tqq\"", 9857 getLLVMStyleWithColumns(11))); 9858 9859 // UTF8 character in an escape sequence. 9860 EXPECT_EQ("\"aaaaaa\"\n" 9861 "\"\\\xC2\x8D\"", 9862 format("\"aaaaaa\\\xC2\x8D\"", getLLVMStyleWithColumns(10))); 9863 } 9864 9865 TEST_F(FormatTest, HandlesDoubleWidthCharsInMultiLineStrings) { 9866 EXPECT_EQ("const char *sssss =\n" 9867 " \"一二三四五六七八\\\n" 9868 " 九 十\";", 9869 format("const char *sssss = \"一二三四五六七八\\\n" 9870 " 九 十\";", 9871 getLLVMStyleWithColumns(30))); 9872 } 9873 9874 TEST_F(FormatTest, SplitsUTF8LineComments) { 9875 EXPECT_EQ("// aaaaÄ\xc2\x8d", 9876 format("// aaaaÄ\xc2\x8d", getLLVMStyleWithColumns(10))); 9877 EXPECT_EQ("// Я из лесу\n" 9878 "// вышел; был\n" 9879 "// сильный\n" 9880 "// мороз.", 9881 format("// Я из лесу вышел; был сильный мороз.", 9882 getLLVMStyleWithColumns(13))); 9883 EXPECT_EQ("// 一二三\n" 9884 "// 四五六七\n" 9885 "// 八 九\n" 9886 "// 十", 9887 format("// 一二三 四五六七 八 九 十", getLLVMStyleWithColumns(9))); 9888 } 9889 9890 TEST_F(FormatTest, SplitsUTF8BlockComments) { 9891 EXPECT_EQ("/* Гляжу,\n" 9892 " * поднимается\n" 9893 " * медленно в\n" 9894 " * гору\n" 9895 " * Лошадка,\n" 9896 " * везущая\n" 9897 " * хворосту\n" 9898 " * воз. */", 9899 format("/* Гляжу, поднимается медленно в гору\n" 9900 " * Лошадка, везущая хворосту воз. */", 9901 getLLVMStyleWithColumns(13))); 9902 EXPECT_EQ( 9903 "/* 一二三\n" 9904 " * 四五六七\n" 9905 " * 八 九\n" 9906 " * 十 */", 9907 format("/* 一二三 四五六七 八 九 十 */", getLLVMStyleWithColumns(9))); 9908 EXPECT_EQ("/* �������� ��������\n" 9909 " * ��������\n" 9910 " * ������-�� */", 9911 format("/* �������� �������� �������� ������-�� */", getLLVMStyleWithColumns(12))); 9912 } 9913 9914 #endif // _MSC_VER 9915 9916 TEST_F(FormatTest, ConstructorInitializerIndentWidth) { 9917 FormatStyle Style = getLLVMStyle(); 9918 9919 Style.ConstructorInitializerIndentWidth = 4; 9920 verifyFormat( 9921 "SomeClass::Constructor()\n" 9922 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 9923 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}", 9924 Style); 9925 9926 Style.ConstructorInitializerIndentWidth = 2; 9927 verifyFormat( 9928 "SomeClass::Constructor()\n" 9929 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 9930 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}", 9931 Style); 9932 9933 Style.ConstructorInitializerIndentWidth = 0; 9934 verifyFormat( 9935 "SomeClass::Constructor()\n" 9936 ": aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 9937 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}", 9938 Style); 9939 } 9940 9941 TEST_F(FormatTest, BreakConstructorInitializersBeforeComma) { 9942 FormatStyle Style = getLLVMStyle(); 9943 Style.BreakConstructorInitializersBeforeComma = true; 9944 Style.ConstructorInitializerIndentWidth = 4; 9945 verifyFormat("SomeClass::Constructor()\n" 9946 " : a(a)\n" 9947 " , b(b)\n" 9948 " , c(c) {}", 9949 Style); 9950 verifyFormat("SomeClass::Constructor()\n" 9951 " : a(a) {}", 9952 Style); 9953 9954 Style.ColumnLimit = 0; 9955 verifyFormat("SomeClass::Constructor()\n" 9956 " : a(a) {}", 9957 Style); 9958 verifyFormat("SomeClass::Constructor()\n" 9959 " : a(a)\n" 9960 " , b(b)\n" 9961 " , c(c) {}", 9962 Style); 9963 verifyFormat("SomeClass::Constructor()\n" 9964 " : a(a) {\n" 9965 " foo();\n" 9966 " bar();\n" 9967 "}", 9968 Style); 9969 9970 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_None; 9971 verifyFormat("SomeClass::Constructor()\n" 9972 " : a(a)\n" 9973 " , b(b)\n" 9974 " , c(c) {\n}", 9975 Style); 9976 verifyFormat("SomeClass::Constructor()\n" 9977 " : a(a) {\n}", 9978 Style); 9979 9980 Style.ColumnLimit = 80; 9981 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_All; 9982 Style.ConstructorInitializerIndentWidth = 2; 9983 verifyFormat("SomeClass::Constructor()\n" 9984 " : a(a)\n" 9985 " , b(b)\n" 9986 " , c(c) {}", 9987 Style); 9988 9989 Style.ConstructorInitializerIndentWidth = 0; 9990 verifyFormat("SomeClass::Constructor()\n" 9991 ": a(a)\n" 9992 ", b(b)\n" 9993 ", c(c) {}", 9994 Style); 9995 9996 Style.ConstructorInitializerAllOnOneLineOrOnePerLine = true; 9997 Style.ConstructorInitializerIndentWidth = 4; 9998 verifyFormat("SomeClass::Constructor() : aaaaaaaa(aaaaaaaa) {}", Style); 9999 verifyFormat( 10000 "SomeClass::Constructor() : aaaaa(aaaaa), aaaaa(aaaaa), aaaaa(aaaaa)\n", 10001 Style); 10002 verifyFormat( 10003 "SomeClass::Constructor()\n" 10004 " : aaaaaaaa(aaaaaaaa), aaaaaaaa(aaaaaaaa), aaaaaaaa(aaaaaaaa) {}", 10005 Style); 10006 Style.ConstructorInitializerIndentWidth = 4; 10007 Style.ColumnLimit = 60; 10008 verifyFormat("SomeClass::Constructor()\n" 10009 " : aaaaaaaa(aaaaaaaa)\n" 10010 " , aaaaaaaa(aaaaaaaa)\n" 10011 " , aaaaaaaa(aaaaaaaa) {}", 10012 Style); 10013 } 10014 10015 TEST_F(FormatTest, Destructors) { 10016 verifyFormat("void F(int &i) { i.~int(); }"); 10017 verifyFormat("void F(int &i) { i->~int(); }"); 10018 } 10019 10020 TEST_F(FormatTest, FormatsWithWebKitStyle) { 10021 FormatStyle Style = getWebKitStyle(); 10022 10023 // Don't indent in outer namespaces. 10024 verifyFormat("namespace outer {\n" 10025 "int i;\n" 10026 "namespace inner {\n" 10027 " int i;\n" 10028 "} // namespace inner\n" 10029 "} // namespace outer\n" 10030 "namespace other_outer {\n" 10031 "int i;\n" 10032 "}", 10033 Style); 10034 10035 // Don't indent case labels. 10036 verifyFormat("switch (variable) {\n" 10037 "case 1:\n" 10038 "case 2:\n" 10039 " doSomething();\n" 10040 " break;\n" 10041 "default:\n" 10042 " ++variable;\n" 10043 "}", 10044 Style); 10045 10046 // Wrap before binary operators. 10047 EXPECT_EQ("void f()\n" 10048 "{\n" 10049 " if (aaaaaaaaaaaaaaaa\n" 10050 " && bbbbbbbbbbbbbbbbbbbbbbbb\n" 10051 " && (cccccccccccccccccccccccccc || dddddddddddddddddddd))\n" 10052 " return;\n" 10053 "}", 10054 format("void f() {\n" 10055 "if (aaaaaaaaaaaaaaaa\n" 10056 "&& bbbbbbbbbbbbbbbbbbbbbbbb\n" 10057 "&& (cccccccccccccccccccccccccc || dddddddddddddddddddd))\n" 10058 "return;\n" 10059 "}", 10060 Style)); 10061 10062 // Allow functions on a single line. 10063 verifyFormat("void f() { return; }", Style); 10064 10065 // Constructor initializers are formatted one per line with the "," on the 10066 // new line. 10067 verifyFormat("Constructor()\n" 10068 " : aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 10069 " , aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaa, // break\n" 10070 " aaaaaaaaaaaaaa)\n" 10071 " , aaaaaaaaaaaaaaaaaaaaaaa()\n" 10072 "{\n" 10073 "}", 10074 Style); 10075 verifyFormat("SomeClass::Constructor()\n" 10076 " : a(a)\n" 10077 "{\n" 10078 "}", 10079 Style); 10080 EXPECT_EQ("SomeClass::Constructor()\n" 10081 " : a(a)\n" 10082 "{\n" 10083 "}", 10084 format("SomeClass::Constructor():a(a){}", Style)); 10085 verifyFormat("SomeClass::Constructor()\n" 10086 " : a(a)\n" 10087 " , b(b)\n" 10088 " , c(c)\n" 10089 "{\n" 10090 "}", 10091 Style); 10092 verifyFormat("SomeClass::Constructor()\n" 10093 " : a(a)\n" 10094 "{\n" 10095 " foo();\n" 10096 " bar();\n" 10097 "}", 10098 Style); 10099 10100 // Access specifiers should be aligned left. 10101 verifyFormat("class C {\n" 10102 "public:\n" 10103 " int i;\n" 10104 "};", 10105 Style); 10106 10107 // Do not align comments. 10108 verifyFormat("int a; // Do not\n" 10109 "double b; // align comments.", 10110 Style); 10111 10112 // Do not align operands. 10113 EXPECT_EQ("ASSERT(aaaa\n" 10114 " || bbbb);", 10115 format("ASSERT ( aaaa\n||bbbb);", Style)); 10116 10117 // Accept input's line breaks. 10118 EXPECT_EQ("if (aaaaaaaaaaaaaaa\n" 10119 " || bbbbbbbbbbbbbbb) {\n" 10120 " i++;\n" 10121 "}", 10122 format("if (aaaaaaaaaaaaaaa\n" 10123 "|| bbbbbbbbbbbbbbb) { i++; }", 10124 Style)); 10125 EXPECT_EQ("if (aaaaaaaaaaaaaaa || bbbbbbbbbbbbbbb) {\n" 10126 " i++;\n" 10127 "}", 10128 format("if (aaaaaaaaaaaaaaa || bbbbbbbbbbbbbbb) { i++; }", Style)); 10129 10130 // Don't automatically break all macro definitions (llvm.org/PR17842). 10131 verifyFormat("#define aNumber 10", Style); 10132 // However, generally keep the line breaks that the user authored. 10133 EXPECT_EQ("#define aNumber \\\n" 10134 " 10", 10135 format("#define aNumber \\\n" 10136 " 10", 10137 Style)); 10138 10139 // Keep empty and one-element array literals on a single line. 10140 EXPECT_EQ("NSArray* a = [[NSArray alloc] initWithArray:@[]\n" 10141 " copyItems:YES];", 10142 format("NSArray*a=[[NSArray alloc] initWithArray:@[]\n" 10143 "copyItems:YES];", 10144 Style)); 10145 EXPECT_EQ("NSArray* a = [[NSArray alloc] initWithArray:@[ @\"a\" ]\n" 10146 " copyItems:YES];", 10147 format("NSArray*a=[[NSArray alloc]initWithArray:@[ @\"a\" ]\n" 10148 " copyItems:YES];", 10149 Style)); 10150 // FIXME: This does not seem right, there should be more indentation before 10151 // the array literal's entries. Nested blocks have the same problem. 10152 EXPECT_EQ("NSArray* a = [[NSArray alloc] initWithArray:@[\n" 10153 " @\"a\",\n" 10154 " @\"a\"\n" 10155 "]\n" 10156 " copyItems:YES];", 10157 format("NSArray* a = [[NSArray alloc] initWithArray:@[\n" 10158 " @\"a\",\n" 10159 " @\"a\"\n" 10160 " ]\n" 10161 " copyItems:YES];", 10162 Style)); 10163 EXPECT_EQ( 10164 "NSArray* a = [[NSArray alloc] initWithArray:@[ @\"a\", @\"a\" ]\n" 10165 " copyItems:YES];", 10166 format("NSArray* a = [[NSArray alloc] initWithArray:@[ @\"a\", @\"a\" ]\n" 10167 " copyItems:YES];", 10168 Style)); 10169 10170 verifyFormat("[self.a b:c c:d];", Style); 10171 EXPECT_EQ("[self.a b:c\n" 10172 " c:d];", 10173 format("[self.a b:c\n" 10174 "c:d];", 10175 Style)); 10176 } 10177 10178 TEST_F(FormatTest, FormatsLambdas) { 10179 verifyFormat("int c = [b]() mutable { return [&b] { return b++; }(); }();\n"); 10180 verifyFormat("int c = [&] { [=] { return b++; }(); }();\n"); 10181 verifyFormat("int c = [&, &a, a] { [=, c, &d] { return b++; }(); }();\n"); 10182 verifyFormat("int c = [&a, &a, a] { [=, a, b, &c] { return b++; }(); }();\n"); 10183 verifyFormat("auto c = {[&a, &a, a] { [=, a, b, &c] { return b++; }(); }}\n"); 10184 verifyFormat("auto c = {[&a, &a, a] { [=, a, b, &c] {}(); }}\n"); 10185 verifyFormat("void f() {\n" 10186 " other(x.begin(), x.end(), [&](int, int) { return 1; });\n" 10187 "}\n"); 10188 verifyFormat("void f() {\n" 10189 " other(x.begin(), //\n" 10190 " x.end(), //\n" 10191 " [&](int, int) { return 1; });\n" 10192 "}\n"); 10193 verifyFormat("SomeFunction([]() { // A cool function...\n" 10194 " return 43;\n" 10195 "});"); 10196 EXPECT_EQ("SomeFunction([]() {\n" 10197 "#define A a\n" 10198 " return 43;\n" 10199 "});", 10200 format("SomeFunction([](){\n" 10201 "#define A a\n" 10202 "return 43;\n" 10203 "});")); 10204 verifyFormat("void f() {\n" 10205 " SomeFunction([](decltype(x), A *a) {});\n" 10206 "}"); 10207 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 10208 " [](const aaaaaaaaaa &a) { return a; });"); 10209 verifyFormat("string abc = SomeFunction(aaaaaaaaaaaaa, aaaaa, []() {\n" 10210 " SomeOtherFunctioooooooooooooooooooooooooon();\n" 10211 "});"); 10212 verifyFormat("Constructor()\n" 10213 " : Field([] { // comment\n" 10214 " int i;\n" 10215 " }) {}"); 10216 verifyFormat("auto my_lambda = [](const string &some_parameter) {\n" 10217 " return some_parameter.size();\n" 10218 "};"); 10219 verifyFormat("int i = aaaaaa ? 1 //\n" 10220 " : [] {\n" 10221 " return 2; //\n" 10222 " }();"); 10223 verifyFormat("llvm::errs() << \"number of twos is \"\n" 10224 " << std::count_if(v.begin(), v.end(), [](int x) {\n" 10225 " return x == 2; // force break\n" 10226 " });"); 10227 verifyFormat("return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa([=](\n" 10228 " int iiiiiiiiiiii) {\n" 10229 " return aaaaaaaaaaaaaaaaaaaaaaa != aaaaaaaaaaaaaaaaaaaaaaa;\n" 10230 "});", 10231 getLLVMStyleWithColumns(60)); 10232 verifyFormat("SomeFunction({[&] {\n" 10233 " // comment\n" 10234 " },\n" 10235 " [&] {\n" 10236 " // comment\n" 10237 " }});"); 10238 verifyFormat("SomeFunction({[&] {\n" 10239 " // comment\n" 10240 "}});"); 10241 verifyFormat("virtual aaaaaaaaaaaaaaaa(std::function<bool()> bbbbbbbbbbbb =\n" 10242 " [&]() { return true; },\n" 10243 " aaaaa aaaaaaaaa);"); 10244 10245 // Lambdas with return types. 10246 verifyFormat("int c = []() -> int { return 2; }();\n"); 10247 verifyFormat("int c = []() -> int * { return 2; }();\n"); 10248 verifyFormat("int c = []() -> vector<int> { return {2}; }();\n"); 10249 verifyFormat("Foo([]() -> std::vector<int> { return {2}; }());"); 10250 verifyGoogleFormat("auto a = [&b, c](D* d) -> D* {};"); 10251 verifyGoogleFormat("auto a = [&b, c](D* d) -> pair<D*, D*> {};"); 10252 verifyGoogleFormat("auto a = [&b, c](D* d) -> D& {};"); 10253 verifyGoogleFormat("auto a = [&b, c](D* d) -> const D* {};"); 10254 verifyFormat("[a, a]() -> a<1> {};"); 10255 verifyFormat("auto aaaaaaaa = [](int i, // break for some reason\n" 10256 " int j) -> int {\n" 10257 " return ffffffffffffffffffffffffffffffffffffffffffff(i * j);\n" 10258 "};"); 10259 verifyFormat( 10260 "aaaaaaaaaaaaaaaaaaaaaa(\n" 10261 " [](aaaaaaaaaaaaaaaaaaaaaaaaaaa &aaa) -> aaaaaaaaaaaaaaaa {\n" 10262 " return aaaaaaaaaaaaaaaaa;\n" 10263 " });", 10264 getLLVMStyleWithColumns(70)); 10265 10266 // Multiple lambdas in the same parentheses change indentation rules. 10267 verifyFormat("SomeFunction(\n" 10268 " []() {\n" 10269 " int i = 42;\n" 10270 " return i;\n" 10271 " },\n" 10272 " []() {\n" 10273 " int j = 43;\n" 10274 " return j;\n" 10275 " });"); 10276 10277 // More complex introducers. 10278 verifyFormat("return [i, args...] {};"); 10279 10280 // Not lambdas. 10281 verifyFormat("constexpr char hello[]{\"hello\"};"); 10282 verifyFormat("double &operator[](int i) { return 0; }\n" 10283 "int i;"); 10284 verifyFormat("std::unique_ptr<int[]> foo() {}"); 10285 verifyFormat("int i = a[a][a]->f();"); 10286 verifyFormat("int i = (*b)[a]->f();"); 10287 10288 // Other corner cases. 10289 verifyFormat("void f() {\n" 10290 " bar([]() {} // Did not respect SpacesBeforeTrailingComments\n" 10291 " );\n" 10292 "}"); 10293 10294 // Lambdas created through weird macros. 10295 verifyFormat("void f() {\n" 10296 " MACRO((const AA &a) { return 1; });\n" 10297 "}"); 10298 10299 verifyFormat("if (blah_blah(whatever, whatever, [] {\n" 10300 " doo_dah();\n" 10301 " doo_dah();\n" 10302 " })) {\n" 10303 "}"); 10304 verifyFormat("auto lambda = []() {\n" 10305 " int a = 2\n" 10306 "#if A\n" 10307 " + 2\n" 10308 "#endif\n" 10309 " ;\n" 10310 "};"); 10311 } 10312 10313 TEST_F(FormatTest, FormatsBlocks) { 10314 FormatStyle ShortBlocks = getLLVMStyle(); 10315 ShortBlocks.AllowShortBlocksOnASingleLine = true; 10316 verifyFormat("int (^Block)(int, int);", ShortBlocks); 10317 verifyFormat("int (^Block1)(int, int) = ^(int i, int j)", ShortBlocks); 10318 verifyFormat("void (^block)(int) = ^(id test) { int i; };", ShortBlocks); 10319 verifyFormat("void (^block)(int) = ^(int test) { int i; };", ShortBlocks); 10320 verifyFormat("void (^block)(int) = ^id(int test) { int i; };", ShortBlocks); 10321 verifyFormat("void (^block)(int) = ^int(int test) { int i; };", ShortBlocks); 10322 10323 verifyFormat("foo(^{ bar(); });", ShortBlocks); 10324 verifyFormat("foo(a, ^{ bar(); });", ShortBlocks); 10325 verifyFormat("{ void (^block)(Object *x); }", ShortBlocks); 10326 10327 verifyFormat("[operation setCompletionBlock:^{\n" 10328 " [self onOperationDone];\n" 10329 "}];"); 10330 verifyFormat("int i = {[operation setCompletionBlock:^{\n" 10331 " [self onOperationDone];\n" 10332 "}]};"); 10333 verifyFormat("[operation setCompletionBlock:^(int *i) {\n" 10334 " f();\n" 10335 "}];"); 10336 verifyFormat("int a = [operation block:^int(int *i) {\n" 10337 " return 1;\n" 10338 "}];"); 10339 verifyFormat("[myObject doSomethingWith:arg1\n" 10340 " aaa:^int(int *a) {\n" 10341 " return 1;\n" 10342 " }\n" 10343 " bbb:f(a * bbbbbbbb)];"); 10344 10345 verifyFormat("[operation setCompletionBlock:^{\n" 10346 " [self.delegate newDataAvailable];\n" 10347 "}];", 10348 getLLVMStyleWithColumns(60)); 10349 verifyFormat("dispatch_async(_fileIOQueue, ^{\n" 10350 " NSString *path = [self sessionFilePath];\n" 10351 " if (path) {\n" 10352 " // ...\n" 10353 " }\n" 10354 "});"); 10355 verifyFormat("[[SessionService sharedService]\n" 10356 " loadWindowWithCompletionBlock:^(SessionWindow *window) {\n" 10357 " if (window) {\n" 10358 " [self windowDidLoad:window];\n" 10359 " } else {\n" 10360 " [self errorLoadingWindow];\n" 10361 " }\n" 10362 " }];"); 10363 verifyFormat("void (^largeBlock)(void) = ^{\n" 10364 " // ...\n" 10365 "};\n", 10366 getLLVMStyleWithColumns(40)); 10367 verifyFormat("[[SessionService sharedService]\n" 10368 " loadWindowWithCompletionBlock: //\n" 10369 " ^(SessionWindow *window) {\n" 10370 " if (window) {\n" 10371 " [self windowDidLoad:window];\n" 10372 " } else {\n" 10373 " [self errorLoadingWindow];\n" 10374 " }\n" 10375 " }];", 10376 getLLVMStyleWithColumns(60)); 10377 verifyFormat("[myObject doSomethingWith:arg1\n" 10378 " firstBlock:^(Foo *a) {\n" 10379 " // ...\n" 10380 " int i;\n" 10381 " }\n" 10382 " secondBlock:^(Bar *b) {\n" 10383 " // ...\n" 10384 " int i;\n" 10385 " }\n" 10386 " thirdBlock:^Foo(Bar *b) {\n" 10387 " // ...\n" 10388 " int i;\n" 10389 " }];"); 10390 verifyFormat("[myObject doSomethingWith:arg1\n" 10391 " firstBlock:-1\n" 10392 " secondBlock:^(Bar *b) {\n" 10393 " // ...\n" 10394 " int i;\n" 10395 " }];"); 10396 10397 verifyFormat("f(^{\n" 10398 " @autoreleasepool {\n" 10399 " if (a) {\n" 10400 " g();\n" 10401 " }\n" 10402 " }\n" 10403 "});"); 10404 verifyFormat("Block b = ^int *(A *a, B *b) {}"); 10405 10406 FormatStyle FourIndent = getLLVMStyle(); 10407 FourIndent.ObjCBlockIndentWidth = 4; 10408 verifyFormat("[operation setCompletionBlock:^{\n" 10409 " [self onOperationDone];\n" 10410 "}];", 10411 FourIndent); 10412 } 10413 10414 TEST_F(FormatTest, FormatsBlocksWithZeroColumnWidth) { 10415 FormatStyle ZeroColumn = getLLVMStyle(); 10416 ZeroColumn.ColumnLimit = 0; 10417 10418 verifyFormat("[[SessionService sharedService] " 10419 "loadWindowWithCompletionBlock:^(SessionWindow *window) {\n" 10420 " if (window) {\n" 10421 " [self windowDidLoad:window];\n" 10422 " } else {\n" 10423 " [self errorLoadingWindow];\n" 10424 " }\n" 10425 "}];", 10426 ZeroColumn); 10427 EXPECT_EQ("[[SessionService sharedService]\n" 10428 " loadWindowWithCompletionBlock:^(SessionWindow *window) {\n" 10429 " if (window) {\n" 10430 " [self windowDidLoad:window];\n" 10431 " } else {\n" 10432 " [self errorLoadingWindow];\n" 10433 " }\n" 10434 " }];", 10435 format("[[SessionService sharedService]\n" 10436 "loadWindowWithCompletionBlock:^(SessionWindow *window) {\n" 10437 " if (window) {\n" 10438 " [self windowDidLoad:window];\n" 10439 " } else {\n" 10440 " [self errorLoadingWindow];\n" 10441 " }\n" 10442 "}];", 10443 ZeroColumn)); 10444 verifyFormat("[myObject doSomethingWith:arg1\n" 10445 " firstBlock:^(Foo *a) {\n" 10446 " // ...\n" 10447 " int i;\n" 10448 " }\n" 10449 " secondBlock:^(Bar *b) {\n" 10450 " // ...\n" 10451 " int i;\n" 10452 " }\n" 10453 " thirdBlock:^Foo(Bar *b) {\n" 10454 " // ...\n" 10455 " int i;\n" 10456 " }];", 10457 ZeroColumn); 10458 verifyFormat("f(^{\n" 10459 " @autoreleasepool {\n" 10460 " if (a) {\n" 10461 " g();\n" 10462 " }\n" 10463 " }\n" 10464 "});", 10465 ZeroColumn); 10466 verifyFormat("void (^largeBlock)(void) = ^{\n" 10467 " // ...\n" 10468 "};", 10469 ZeroColumn); 10470 10471 ZeroColumn.AllowShortBlocksOnASingleLine = true; 10472 EXPECT_EQ("void (^largeBlock)(void) = ^{ int i; };", 10473 format("void (^largeBlock)(void) = ^{ int i; };", ZeroColumn)); 10474 ZeroColumn.AllowShortBlocksOnASingleLine = false; 10475 EXPECT_EQ("void (^largeBlock)(void) = ^{\n" 10476 " int i;\n" 10477 "};", 10478 format("void (^largeBlock)(void) = ^{ int i; };", ZeroColumn)); 10479 } 10480 10481 TEST_F(FormatTest, SupportsCRLF) { 10482 EXPECT_EQ("int a;\r\n" 10483 "int b;\r\n" 10484 "int c;\r\n", 10485 format("int a;\r\n" 10486 " int b;\r\n" 10487 " int c;\r\n", 10488 getLLVMStyle())); 10489 EXPECT_EQ("int a;\r\n" 10490 "int b;\r\n" 10491 "int c;\r\n", 10492 format("int a;\r\n" 10493 " int b;\n" 10494 " int c;\r\n", 10495 getLLVMStyle())); 10496 EXPECT_EQ("int a;\n" 10497 "int b;\n" 10498 "int c;\n", 10499 format("int a;\r\n" 10500 " int b;\n" 10501 " int c;\n", 10502 getLLVMStyle())); 10503 EXPECT_EQ("\"aaaaaaa \"\r\n" 10504 "\"bbbbbbb\";\r\n", 10505 format("\"aaaaaaa bbbbbbb\";\r\n", getLLVMStyleWithColumns(10))); 10506 EXPECT_EQ("#define A \\\r\n" 10507 " b; \\\r\n" 10508 " c; \\\r\n" 10509 " d;\r\n", 10510 format("#define A \\\r\n" 10511 " b; \\\r\n" 10512 " c; d; \r\n", 10513 getGoogleStyle())); 10514 10515 EXPECT_EQ("/*\r\n" 10516 "multi line block comments\r\n" 10517 "should not introduce\r\n" 10518 "an extra carriage return\r\n" 10519 "*/\r\n", 10520 format("/*\r\n" 10521 "multi line block comments\r\n" 10522 "should not introduce\r\n" 10523 "an extra carriage return\r\n" 10524 "*/\r\n")); 10525 } 10526 10527 TEST_F(FormatTest, MunchSemicolonAfterBlocks) { 10528 verifyFormat("MY_CLASS(C) {\n" 10529 " int i;\n" 10530 " int j;\n" 10531 "};"); 10532 } 10533 10534 TEST_F(FormatTest, ConfigurableContinuationIndentWidth) { 10535 FormatStyle TwoIndent = getLLVMStyleWithColumns(15); 10536 TwoIndent.ContinuationIndentWidth = 2; 10537 10538 EXPECT_EQ("int i =\n" 10539 " longFunction(\n" 10540 " arg);", 10541 format("int i = longFunction(arg);", TwoIndent)); 10542 10543 FormatStyle SixIndent = getLLVMStyleWithColumns(20); 10544 SixIndent.ContinuationIndentWidth = 6; 10545 10546 EXPECT_EQ("int i =\n" 10547 " longFunction(\n" 10548 " arg);", 10549 format("int i = longFunction(arg);", SixIndent)); 10550 } 10551 10552 TEST_F(FormatTest, SpacesInAngles) { 10553 FormatStyle Spaces = getLLVMStyle(); 10554 Spaces.SpacesInAngles = true; 10555 10556 verifyFormat("static_cast< int >(arg);", Spaces); 10557 verifyFormat("template < typename T0, typename T1 > void f() {}", Spaces); 10558 verifyFormat("f< int, float >();", Spaces); 10559 verifyFormat("template <> g() {}", Spaces); 10560 verifyFormat("template < std::vector< int > > f() {}", Spaces); 10561 10562 Spaces.Standard = FormatStyle::LS_Cpp03; 10563 Spaces.SpacesInAngles = true; 10564 verifyFormat("A< A< int > >();", Spaces); 10565 10566 Spaces.SpacesInAngles = false; 10567 verifyFormat("A<A<int> >();", Spaces); 10568 10569 Spaces.Standard = FormatStyle::LS_Cpp11; 10570 Spaces.SpacesInAngles = true; 10571 verifyFormat("A< A< int > >();", Spaces); 10572 10573 Spaces.SpacesInAngles = false; 10574 verifyFormat("A<A<int>>();", Spaces); 10575 } 10576 10577 TEST_F(FormatTest, TripleAngleBrackets) { 10578 verifyFormat("f<<<1, 1>>>();"); 10579 verifyFormat("f<<<1, 1, 1, s>>>();"); 10580 verifyFormat("f<<<a, b, c, d>>>();"); 10581 EXPECT_EQ("f<<<1, 1>>>();", format("f <<< 1, 1 >>> ();")); 10582 verifyFormat("f<param><<<1, 1>>>();"); 10583 verifyFormat("f<1><<<1, 1>>>();"); 10584 EXPECT_EQ("f<param><<<1, 1>>>();", format("f< param > <<< 1, 1 >>> ();")); 10585 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" 10586 "aaaaaaaaaaa<<<\n 1, 1>>>();"); 10587 } 10588 10589 TEST_F(FormatTest, MergeLessLessAtEnd) { 10590 verifyFormat("<<"); 10591 EXPECT_EQ("< < <", format("\\\n<<<")); 10592 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" 10593 "aaallvm::outs() <<"); 10594 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" 10595 "aaaallvm::outs()\n <<"); 10596 } 10597 10598 TEST_F(FormatTest, HandleUnbalancedImplicitBracesAcrossPPBranches) { 10599 std::string code = "#if A\n" 10600 "#if B\n" 10601 "a.\n" 10602 "#endif\n" 10603 " a = 1;\n" 10604 "#else\n" 10605 "#endif\n" 10606 "#if C\n" 10607 "#else\n" 10608 "#endif\n"; 10609 EXPECT_EQ(code, format(code)); 10610 } 10611 10612 TEST_F(FormatTest, HandleConflictMarkers) { 10613 // Git/SVN conflict markers. 10614 EXPECT_EQ("int a;\n" 10615 "void f() {\n" 10616 " callme(some(parameter1,\n" 10617 "<<<<<<< text by the vcs\n" 10618 " parameter2),\n" 10619 "||||||| text by the vcs\n" 10620 " parameter2),\n" 10621 " parameter3,\n" 10622 "======= text by the vcs\n" 10623 " parameter2, parameter3),\n" 10624 ">>>>>>> text by the vcs\n" 10625 " otherparameter);\n", 10626 format("int a;\n" 10627 "void f() {\n" 10628 " callme(some(parameter1,\n" 10629 "<<<<<<< text by the vcs\n" 10630 " parameter2),\n" 10631 "||||||| text by the vcs\n" 10632 " parameter2),\n" 10633 " parameter3,\n" 10634 "======= text by the vcs\n" 10635 " parameter2,\n" 10636 " parameter3),\n" 10637 ">>>>>>> text by the vcs\n" 10638 " otherparameter);\n")); 10639 10640 // Perforce markers. 10641 EXPECT_EQ("void f() {\n" 10642 " function(\n" 10643 ">>>> text by the vcs\n" 10644 " parameter,\n" 10645 "==== text by the vcs\n" 10646 " parameter,\n" 10647 "==== text by the vcs\n" 10648 " parameter,\n" 10649 "<<<< text by the vcs\n" 10650 " parameter);\n", 10651 format("void f() {\n" 10652 " function(\n" 10653 ">>>> text by the vcs\n" 10654 " parameter,\n" 10655 "==== text by the vcs\n" 10656 " parameter,\n" 10657 "==== text by the vcs\n" 10658 " parameter,\n" 10659 "<<<< text by the vcs\n" 10660 " parameter);\n")); 10661 10662 EXPECT_EQ("<<<<<<<\n" 10663 "|||||||\n" 10664 "=======\n" 10665 ">>>>>>>", 10666 format("<<<<<<<\n" 10667 "|||||||\n" 10668 "=======\n" 10669 ">>>>>>>")); 10670 10671 EXPECT_EQ("<<<<<<<\n" 10672 "|||||||\n" 10673 "int i;\n" 10674 "=======\n" 10675 ">>>>>>>", 10676 format("<<<<<<<\n" 10677 "|||||||\n" 10678 "int i;\n" 10679 "=======\n" 10680 ">>>>>>>")); 10681 10682 // FIXME: Handle parsing of macros around conflict markers correctly: 10683 EXPECT_EQ("#define Macro \\\n" 10684 "<<<<<<<\n" 10685 "Something \\\n" 10686 "|||||||\n" 10687 "Else \\\n" 10688 "=======\n" 10689 "Other \\\n" 10690 ">>>>>>>\n" 10691 " End int i;\n", 10692 format("#define Macro \\\n" 10693 "<<<<<<<\n" 10694 " Something \\\n" 10695 "|||||||\n" 10696 " Else \\\n" 10697 "=======\n" 10698 " Other \\\n" 10699 ">>>>>>>\n" 10700 " End\n" 10701 "int i;\n")); 10702 } 10703 10704 TEST_F(FormatTest, DisableRegions) { 10705 EXPECT_EQ("int i;\n" 10706 "// clang-format off\n" 10707 " int j;\n" 10708 "// clang-format on\n" 10709 "int k;", 10710 format(" int i;\n" 10711 " // clang-format off\n" 10712 " int j;\n" 10713 " // clang-format on\n" 10714 " int k;")); 10715 EXPECT_EQ("int i;\n" 10716 "/* clang-format off */\n" 10717 " int j;\n" 10718 "/* clang-format on */\n" 10719 "int k;", 10720 format(" int i;\n" 10721 " /* clang-format off */\n" 10722 " int j;\n" 10723 " /* clang-format on */\n" 10724 " int k;")); 10725 } 10726 10727 TEST_F(FormatTest, DoNotCrashOnInvalidInput) { 10728 format("? ) ="); 10729 verifyNoCrash("#define a\\\n /**/}"); 10730 } 10731 10732 } // end namespace 10733 } // end namespace format 10734 } // end namespace clang 10735