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 20 FormatStyle getGoogleStyle() { return getGoogleStyle(FormatStyle::LK_Cpp); } 21 22 class FormatTest : public ::testing::Test { 23 protected: 24 std::string format(llvm::StringRef Code, unsigned Offset, unsigned Length, 25 const FormatStyle &Style) { 26 DEBUG(llvm::errs() << "---\n"); 27 DEBUG(llvm::errs() << Code << "\n\n"); 28 std::vector<tooling::Range> Ranges(1, tooling::Range(Offset, Length)); 29 tooling::Replacements Replaces = reformat(Style, Code, Ranges); 30 ReplacementCount = Replaces.size(); 31 std::string Result = applyAllReplacements(Code, Replaces); 32 EXPECT_NE("", Result); 33 DEBUG(llvm::errs() << "\n" << Result << "\n\n"); 34 return Result; 35 } 36 37 std::string format(llvm::StringRef Code, 38 const FormatStyle &Style = getLLVMStyle()) { 39 return format(Code, 0, Code.size(), Style); 40 } 41 42 FormatStyle getLLVMStyleWithColumns(unsigned ColumnLimit) { 43 FormatStyle Style = getLLVMStyle(); 44 Style.ColumnLimit = ColumnLimit; 45 return Style; 46 } 47 48 FormatStyle getGoogleStyleWithColumns(unsigned ColumnLimit) { 49 FormatStyle Style = getGoogleStyle(); 50 Style.ColumnLimit = ColumnLimit; 51 return Style; 52 } 53 54 void verifyFormat(llvm::StringRef Code, 55 const FormatStyle &Style = getLLVMStyle()) { 56 EXPECT_EQ(Code.str(), format(test::messUp(Code), Style)); 57 } 58 59 void verifyGoogleFormat(llvm::StringRef Code) { 60 verifyFormat(Code, getGoogleStyle()); 61 } 62 63 void verifyIndependentOfContext(llvm::StringRef text) { 64 verifyFormat(text); 65 verifyFormat(llvm::Twine("void f() { " + text + " }").str()); 66 } 67 68 /// \brief Verify that clang-format does not crash on the given input. 69 void verifyNoCrash(llvm::StringRef Code, 70 const FormatStyle &Style = getLLVMStyle()) { 71 format(Code, Style); 72 } 73 74 int ReplacementCount; 75 }; 76 77 TEST_F(FormatTest, MessUp) { 78 EXPECT_EQ("1 2 3", test::messUp("1 2 3")); 79 EXPECT_EQ("1 2 3\n", test::messUp("1\n2\n3\n")); 80 EXPECT_EQ("a\n//b\nc", test::messUp("a\n//b\nc")); 81 EXPECT_EQ("a\n#b\nc", test::messUp("a\n#b\nc")); 82 EXPECT_EQ("a\n#b c d\ne", test::messUp("a\n#b\\\nc\\\nd\ne")); 83 } 84 85 //===----------------------------------------------------------------------===// 86 // Basic function tests. 87 //===----------------------------------------------------------------------===// 88 89 TEST_F(FormatTest, DoesNotChangeCorrectlyFormattedCode) { 90 EXPECT_EQ(";", format(";")); 91 } 92 93 TEST_F(FormatTest, FormatsGlobalStatementsAt0) { 94 EXPECT_EQ("int i;", format(" int i;")); 95 EXPECT_EQ("\nint i;", format(" \n\t \v \f int i;")); 96 EXPECT_EQ("int i;\nint j;", format(" int i; int j;")); 97 EXPECT_EQ("int i;\nint j;", format(" int i;\n int j;")); 98 } 99 100 TEST_F(FormatTest, FormatsUnwrappedLinesAtFirstFormat) { 101 EXPECT_EQ("int i;", format("int\ni;")); 102 } 103 104 TEST_F(FormatTest, FormatsNestedBlockStatements) { 105 EXPECT_EQ("{\n {\n {}\n }\n}", format("{{{}}}")); 106 } 107 108 TEST_F(FormatTest, FormatsNestedCall) { 109 verifyFormat("Method(f1, f2(f3));"); 110 verifyFormat("Method(f1(f2, f3()));"); 111 verifyFormat("Method(f1(f2, (f3())));"); 112 } 113 114 TEST_F(FormatTest, NestedNameSpecifiers) { 115 verifyFormat("vector<::Type> v;"); 116 verifyFormat("::ns::SomeFunction(::ns::SomeOtherFunction())"); 117 verifyFormat("static constexpr bool Bar = decltype(bar())::value;"); 118 verifyFormat("bool a = 2 < ::SomeFunction();"); 119 } 120 121 TEST_F(FormatTest, OnlyGeneratesNecessaryReplacements) { 122 EXPECT_EQ("if (a) {\n" 123 " f();\n" 124 "}", 125 format("if(a){f();}")); 126 EXPECT_EQ(4, ReplacementCount); 127 EXPECT_EQ("if (a) {\n" 128 " f();\n" 129 "}", 130 format("if (a) {\n" 131 " f();\n" 132 "}")); 133 EXPECT_EQ(0, ReplacementCount); 134 } 135 136 TEST_F(FormatTest, RemovesTrailingWhitespaceOfFormattedLine) { 137 EXPECT_EQ("int a;\nint b;", format("int a; \nint b;", 0, 0, getLLVMStyle())); 138 EXPECT_EQ("int a;", format("int a; ")); 139 EXPECT_EQ("int a;\n", format("int a; \n \n \n ")); 140 EXPECT_EQ("int a;\nint b; ", 141 format("int a; \nint b; ", 0, 0, getLLVMStyle())); 142 } 143 144 TEST_F(FormatTest, FormatsCorrectRegionForLeadingWhitespace) { 145 EXPECT_EQ("int b;\nint a;", 146 format("int b;\n int a;", 7, 0, getLLVMStyle())); 147 EXPECT_EQ("int b;\n int a;", 148 format("int b;\n int a;", 6, 0, getLLVMStyle())); 149 150 EXPECT_EQ("#define A \\\n" 151 " int a; \\\n" 152 " int b;", 153 format("#define A \\\n" 154 " int a; \\\n" 155 " int b;", 156 26, 0, getLLVMStyleWithColumns(12))); 157 EXPECT_EQ("#define A \\\n" 158 " int a; \\\n" 159 " int b;", 160 format("#define A \\\n" 161 " int a; \\\n" 162 " int b;", 163 25, 0, getLLVMStyleWithColumns(12))); 164 } 165 166 TEST_F(FormatTest, FormatLineWhenInvokedOnTrailingNewline) { 167 EXPECT_EQ("int b;\n\nint a;", 168 format("int b;\n\nint a;", 8, 0, getLLVMStyle())); 169 EXPECT_EQ("int b;\n\nint a;", 170 format("int b;\n\nint a;", 7, 0, getLLVMStyle())); 171 172 // This might not strictly be correct, but is likely good in all practical 173 // cases. 174 EXPECT_EQ("int b;\nint a;", format("int b;int a;", 7, 0, getLLVMStyle())); 175 } 176 177 TEST_F(FormatTest, RemovesWhitespaceWhenTriggeredOnEmptyLine) { 178 EXPECT_EQ("int a;\n\n int b;", 179 format("int a;\n \n\n int b;", 8, 0, getLLVMStyle())); 180 EXPECT_EQ("int a;\n\n int b;", 181 format("int a;\n \n\n int b;", 9, 0, getLLVMStyle())); 182 } 183 184 TEST_F(FormatTest, RemovesEmptyLines) { 185 EXPECT_EQ("class C {\n" 186 " int i;\n" 187 "};", 188 format("class C {\n" 189 " int i;\n" 190 "\n" 191 "};")); 192 193 // Don't remove empty lines at the start of namespaces or extern "C" blocks. 194 EXPECT_EQ("namespace N {\n" 195 "\n" 196 "int i;\n" 197 "}", 198 format("namespace N {\n" 199 "\n" 200 "int i;\n" 201 "}", 202 getGoogleStyle())); 203 EXPECT_EQ("extern /**/ \"C\" /**/ {\n" 204 "\n" 205 "int i;\n" 206 "}", 207 format("extern /**/ \"C\" /**/ {\n" 208 "\n" 209 "int i;\n" 210 "}", 211 getGoogleStyle())); 212 213 // ...but do keep inlining and removing empty lines for non-block extern "C" 214 // functions. 215 verifyFormat("extern \"C\" int f() { return 42; }", getGoogleStyle()); 216 EXPECT_EQ("extern \"C\" int f() {\n" 217 " int i = 42;\n" 218 " return i;\n" 219 "}", 220 format("extern \"C\" int f() {\n" 221 "\n" 222 " int i = 42;\n" 223 " return i;\n" 224 "}", 225 getGoogleStyle())); 226 227 // Remove empty lines at the beginning and end of blocks. 228 EXPECT_EQ("void f() {\n" 229 "\n" 230 " if (a) {\n" 231 "\n" 232 " f();\n" 233 " }\n" 234 "}", 235 format("void f() {\n" 236 "\n" 237 " if (a) {\n" 238 "\n" 239 " f();\n" 240 "\n" 241 " }\n" 242 "\n" 243 "}", 244 getLLVMStyle())); 245 EXPECT_EQ("void f() {\n" 246 " if (a) {\n" 247 " f();\n" 248 " }\n" 249 "}", 250 format("void f() {\n" 251 "\n" 252 " if (a) {\n" 253 "\n" 254 " f();\n" 255 "\n" 256 " }\n" 257 "\n" 258 "}", 259 getGoogleStyle())); 260 261 // Don't remove empty lines in more complex control statements. 262 EXPECT_EQ("void f() {\n" 263 " if (a) {\n" 264 " f();\n" 265 "\n" 266 " } else if (b) {\n" 267 " f();\n" 268 " }\n" 269 "}", 270 format("void f() {\n" 271 " if (a) {\n" 272 " f();\n" 273 "\n" 274 " } else if (b) {\n" 275 " f();\n" 276 "\n" 277 " }\n" 278 "\n" 279 "}")); 280 281 // FIXME: This is slightly inconsistent. 282 EXPECT_EQ("namespace {\n" 283 "int i;\n" 284 "}", 285 format("namespace {\n" 286 "int i;\n" 287 "\n" 288 "}")); 289 EXPECT_EQ("namespace {\n" 290 "int i;\n" 291 "\n" 292 "} // namespace", 293 format("namespace {\n" 294 "int i;\n" 295 "\n" 296 "} // namespace")); 297 } 298 299 TEST_F(FormatTest, ReformatsMovedLines) { 300 EXPECT_EQ( 301 "template <typename T> T *getFETokenInfo() const {\n" 302 " return static_cast<T *>(FETokenInfo);\n" 303 "}\n" 304 " int a; // <- Should not be formatted", 305 format( 306 "template<typename T>\n" 307 "T *getFETokenInfo() const { return static_cast<T*>(FETokenInfo); }\n" 308 " int a; // <- Should not be formatted", 309 9, 5, getLLVMStyle())); 310 } 311 312 TEST_F(FormatTest, RecognizesBinaryOperatorKeywords) { 313 verifyFormat("x = (a) and (b);"); 314 verifyFormat("x = (a) or (b);"); 315 verifyFormat("x = (a) bitand (b);"); 316 verifyFormat("x = (a) bitor (b);"); 317 verifyFormat("x = (a) not_eq (b);"); 318 verifyFormat("x = (a) and_eq (b);"); 319 verifyFormat("x = (a) or_eq (b);"); 320 verifyFormat("x = (a) xor (b);"); 321 } 322 323 //===----------------------------------------------------------------------===// 324 // Tests for control statements. 325 //===----------------------------------------------------------------------===// 326 327 TEST_F(FormatTest, FormatIfWithoutCompoundStatement) { 328 verifyFormat("if (true)\n f();\ng();"); 329 verifyFormat("if (a)\n if (b)\n if (c)\n g();\nh();"); 330 verifyFormat("if (a)\n if (b) {\n f();\n }\ng();"); 331 332 FormatStyle AllowsMergedIf = getLLVMStyle(); 333 AllowsMergedIf.AllowShortIfStatementsOnASingleLine = true; 334 verifyFormat("if (a)\n" 335 " // comment\n" 336 " f();", 337 AllowsMergedIf); 338 verifyFormat("if (a)\n" 339 " ;", 340 AllowsMergedIf); 341 verifyFormat("if (a)\n" 342 " if (b) return;", 343 AllowsMergedIf); 344 345 verifyFormat("if (a) // Can't merge this\n" 346 " f();\n", 347 AllowsMergedIf); 348 verifyFormat("if (a) /* still don't merge */\n" 349 " f();", 350 AllowsMergedIf); 351 verifyFormat("if (a) { // Never merge this\n" 352 " f();\n" 353 "}", 354 AllowsMergedIf); 355 verifyFormat("if (a) {/* Never merge this */\n" 356 " f();\n" 357 "}", 358 AllowsMergedIf); 359 360 EXPECT_EQ("if (a) return;", format("if(a)\nreturn;", 7, 1, AllowsMergedIf)); 361 EXPECT_EQ("if (a) return; // comment", 362 format("if(a)\nreturn; // comment", 20, 1, AllowsMergedIf)); 363 364 AllowsMergedIf.ColumnLimit = 14; 365 verifyFormat("if (a) return;", AllowsMergedIf); 366 verifyFormat("if (aaaaaaaaa)\n" 367 " return;", 368 AllowsMergedIf); 369 370 AllowsMergedIf.ColumnLimit = 13; 371 verifyFormat("if (a)\n return;", AllowsMergedIf); 372 } 373 374 TEST_F(FormatTest, FormatLoopsWithoutCompoundStatement) { 375 FormatStyle AllowsMergedLoops = getLLVMStyle(); 376 AllowsMergedLoops.AllowShortLoopsOnASingleLine = true; 377 verifyFormat("while (true) continue;", AllowsMergedLoops); 378 verifyFormat("for (;;) continue;", AllowsMergedLoops); 379 verifyFormat("for (int &v : vec) v *= 2;", AllowsMergedLoops); 380 verifyFormat("while (true)\n" 381 " ;", 382 AllowsMergedLoops); 383 verifyFormat("for (;;)\n" 384 " ;", 385 AllowsMergedLoops); 386 verifyFormat("for (;;)\n" 387 " for (;;) continue;", 388 AllowsMergedLoops); 389 verifyFormat("for (;;) // Can't merge this\n" 390 " continue;", 391 AllowsMergedLoops); 392 verifyFormat("for (;;) /* still don't merge */\n" 393 " continue;", 394 AllowsMergedLoops); 395 } 396 397 TEST_F(FormatTest, FormatShortBracedStatements) { 398 FormatStyle AllowSimpleBracedStatements = getLLVMStyle(); 399 AllowSimpleBracedStatements.AllowShortBlocksOnASingleLine = true; 400 401 AllowSimpleBracedStatements.AllowShortIfStatementsOnASingleLine = true; 402 AllowSimpleBracedStatements.AllowShortLoopsOnASingleLine = true; 403 404 verifyFormat("if (true) {}", AllowSimpleBracedStatements); 405 verifyFormat("while (true) {}", AllowSimpleBracedStatements); 406 verifyFormat("for (;;) {}", AllowSimpleBracedStatements); 407 verifyFormat("if (true) { f(); }", AllowSimpleBracedStatements); 408 verifyFormat("while (true) { f(); }", AllowSimpleBracedStatements); 409 verifyFormat("for (;;) { f(); }", AllowSimpleBracedStatements); 410 verifyFormat("if (true) { //\n" 411 " f();\n" 412 "}", 413 AllowSimpleBracedStatements); 414 verifyFormat("if (true) {\n" 415 " f();\n" 416 " f();\n" 417 "}", 418 AllowSimpleBracedStatements); 419 verifyFormat("if (true) {\n" 420 " f();\n" 421 "} else {\n" 422 " f();\n" 423 "}", 424 AllowSimpleBracedStatements); 425 426 verifyFormat("template <int> struct A2 {\n" 427 " struct B {};\n" 428 "};", 429 AllowSimpleBracedStatements); 430 431 AllowSimpleBracedStatements.AllowShortIfStatementsOnASingleLine = false; 432 verifyFormat("if (true) {\n" 433 " f();\n" 434 "}", 435 AllowSimpleBracedStatements); 436 verifyFormat("if (true) {\n" 437 " f();\n" 438 "} else {\n" 439 " f();\n" 440 "}", 441 AllowSimpleBracedStatements); 442 443 AllowSimpleBracedStatements.AllowShortLoopsOnASingleLine = false; 444 verifyFormat("while (true) {\n" 445 " f();\n" 446 "}", 447 AllowSimpleBracedStatements); 448 verifyFormat("for (;;) {\n" 449 " f();\n" 450 "}", 451 AllowSimpleBracedStatements); 452 } 453 454 TEST_F(FormatTest, ParseIfElse) { 455 verifyFormat("if (true)\n" 456 " if (true)\n" 457 " if (true)\n" 458 " f();\n" 459 " else\n" 460 " g();\n" 461 " else\n" 462 " h();\n" 463 "else\n" 464 " i();"); 465 verifyFormat("if (true)\n" 466 " if (true)\n" 467 " if (true) {\n" 468 " if (true)\n" 469 " f();\n" 470 " } else {\n" 471 " g();\n" 472 " }\n" 473 " else\n" 474 " h();\n" 475 "else {\n" 476 " i();\n" 477 "}"); 478 verifyFormat("void f() {\n" 479 " if (a) {\n" 480 " } else {\n" 481 " }\n" 482 "}"); 483 } 484 485 TEST_F(FormatTest, ElseIf) { 486 verifyFormat("if (a) {\n} else if (b) {\n}"); 487 verifyFormat("if (a)\n" 488 " f();\n" 489 "else if (b)\n" 490 " g();\n" 491 "else\n" 492 " h();"); 493 verifyFormat("if (a) {\n" 494 " f();\n" 495 "}\n" 496 "// or else ..\n" 497 "else {\n" 498 " g()\n" 499 "}"); 500 501 verifyFormat("if (a) {\n" 502 "} else if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 503 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa)) {\n" 504 "}"); 505 verifyFormat("if (a) {\n" 506 "} else if (\n" 507 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n" 508 "}", 509 getLLVMStyleWithColumns(62)); 510 } 511 512 TEST_F(FormatTest, FormatsForLoop) { 513 verifyFormat( 514 "for (int VeryVeryLongLoopVariable = 0; VeryVeryLongLoopVariable < 10;\n" 515 " ++VeryVeryLongLoopVariable)\n" 516 " ;"); 517 verifyFormat("for (;;)\n" 518 " f();"); 519 verifyFormat("for (;;) {\n}"); 520 verifyFormat("for (;;) {\n" 521 " f();\n" 522 "}"); 523 verifyFormat("for (int i = 0; (i < 10); ++i) {\n}"); 524 525 verifyFormat( 526 "for (std::vector<UnwrappedLine>::iterator I = UnwrappedLines.begin(),\n" 527 " E = UnwrappedLines.end();\n" 528 " I != E; ++I) {\n}"); 529 530 verifyFormat( 531 "for (MachineFun::iterator IIII = PrevIt, EEEE = F.end(); IIII != EEEE;\n" 532 " ++IIIII) {\n}"); 533 verifyFormat("for (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaa =\n" 534 " aaaaaaaaaaaaaaaa.aaaaaaaaaaaaaaa;\n" 535 " aaaaaaaaaaa != aaaaaaaaaaaaaaaaaaa; ++aaaaaaaaaaa) {\n}"); 536 verifyFormat("for (llvm::ArrayRef<NamedDecl *>::iterator\n" 537 " I = FD->getDeclsInPrototypeScope().begin(),\n" 538 " E = FD->getDeclsInPrototypeScope().end();\n" 539 " I != E; ++I) {\n}"); 540 541 verifyFormat( 542 "for (aaaaaaaaaaaaaaaaa aaaaaaaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;\n" 543 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa !=\n" 544 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 545 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);\n" 546 " ++aaaaaaaaaaa) {\n}"); 547 verifyFormat("for (int i = 0; i < aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 548 " bbbbbbbbbbbbbbbbbbbb < ccccccccccccccc;\n" 549 " ++i) {\n}"); 550 verifyFormat("for (int aaaaaaaaaaa = 1; aaaaaaaaaaa <= bbbbbbbbbbbbbbb;\n" 551 " aaaaaaaaaaa++, bbbbbbbbbbbbbbbbb++) {\n" 552 "}"); 553 verifyFormat("for (some_namespace::SomeIterator iter( // force break\n" 554 " aaaaaaaaaa);\n" 555 " iter; ++iter) {\n" 556 "}"); 557 558 FormatStyle NoBinPacking = getLLVMStyle(); 559 NoBinPacking.BinPackParameters = false; 560 verifyFormat("for (int aaaaaaaaaaa = 1;\n" 561 " aaaaaaaaaaa <= aaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaa,\n" 562 " aaaaaaaaaaaaaaaa,\n" 563 " aaaaaaaaaaaaaaaa,\n" 564 " aaaaaaaaaaaaaaaa);\n" 565 " aaaaaaaaaaa++, bbbbbbbbbbbbbbbbb++) {\n" 566 "}", 567 NoBinPacking); 568 verifyFormat( 569 "for (std::vector<UnwrappedLine>::iterator I = UnwrappedLines.begin(),\n" 570 " E = UnwrappedLines.end();\n" 571 " I != E;\n" 572 " ++I) {\n}", 573 NoBinPacking); 574 } 575 576 TEST_F(FormatTest, RangeBasedForLoops) { 577 verifyFormat("for (auto aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 578 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}"); 579 verifyFormat("for (auto aaaaaaaaaaaaaaaaaaaaa :\n" 580 " aaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaa, aaaaaaaaaaaaa)) {\n}"); 581 verifyFormat("for (const aaaaaaaaaaaaaaaaaaaaa &aaaaaaaaa :\n" 582 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}"); 583 verifyFormat("for (aaaaaaaaa aaaaaaaaaaaaaaaaaaaaa :\n" 584 " aaaaaaaaaaaa.aaaaaaaaaaaa().aaaaaaaaa().a()) {\n}"); 585 } 586 587 TEST_F(FormatTest, ForEachLoops) { 588 verifyFormat("void f() {\n" 589 " foreach (Item *item, itemlist) {}\n" 590 " Q_FOREACH (Item *item, itemlist) {}\n" 591 " BOOST_FOREACH (Item *item, itemlist) {}\n" 592 " UNKNOWN_FORACH(Item * item, itemlist) {}\n" 593 "}"); 594 } 595 596 TEST_F(FormatTest, FormatsWhileLoop) { 597 verifyFormat("while (true) {\n}"); 598 verifyFormat("while (true)\n" 599 " f();"); 600 verifyFormat("while () {\n}"); 601 verifyFormat("while () {\n" 602 " f();\n" 603 "}"); 604 } 605 606 TEST_F(FormatTest, FormatsDoWhile) { 607 verifyFormat("do {\n" 608 " do_something();\n" 609 "} while (something());"); 610 verifyFormat("do\n" 611 " do_something();\n" 612 "while (something());"); 613 } 614 615 TEST_F(FormatTest, FormatsSwitchStatement) { 616 verifyFormat("switch (x) {\n" 617 "case 1:\n" 618 " f();\n" 619 " break;\n" 620 "case kFoo:\n" 621 "case ns::kBar:\n" 622 "case kBaz:\n" 623 " break;\n" 624 "default:\n" 625 " g();\n" 626 " break;\n" 627 "}"); 628 verifyFormat("switch (x) {\n" 629 "case 1: {\n" 630 " f();\n" 631 " break;\n" 632 "}\n" 633 "case 2: {\n" 634 " break;\n" 635 "}\n" 636 "}"); 637 verifyFormat("switch (x) {\n" 638 "case 1: {\n" 639 " f();\n" 640 " {\n" 641 " g();\n" 642 " h();\n" 643 " }\n" 644 " break;\n" 645 "}\n" 646 "}"); 647 verifyFormat("switch (x) {\n" 648 "case 1: {\n" 649 " f();\n" 650 " if (foo) {\n" 651 " g();\n" 652 " h();\n" 653 " }\n" 654 " break;\n" 655 "}\n" 656 "}"); 657 verifyFormat("switch (x) {\n" 658 "case 1: {\n" 659 " f();\n" 660 " g();\n" 661 "} break;\n" 662 "}"); 663 verifyFormat("switch (test)\n" 664 " ;"); 665 verifyFormat("switch (x) {\n" 666 "default: {\n" 667 " // Do nothing.\n" 668 "}\n" 669 "}"); 670 verifyFormat("switch (x) {\n" 671 "// comment\n" 672 "// if 1, do f()\n" 673 "case 1:\n" 674 " f();\n" 675 "}"); 676 verifyFormat("switch (x) {\n" 677 "case 1:\n" 678 " // Do amazing stuff\n" 679 " {\n" 680 " f();\n" 681 " g();\n" 682 " }\n" 683 " break;\n" 684 "}"); 685 verifyFormat("#define A \\\n" 686 " switch (x) { \\\n" 687 " case a: \\\n" 688 " foo = b; \\\n" 689 " }", 690 getLLVMStyleWithColumns(20)); 691 verifyFormat("#define OPERATION_CASE(name) \\\n" 692 " case OP_name: \\\n" 693 " return operations::Operation##name\n", 694 getLLVMStyleWithColumns(40)); 695 696 verifyGoogleFormat("switch (x) {\n" 697 " case 1:\n" 698 " f();\n" 699 " break;\n" 700 " case kFoo:\n" 701 " case ns::kBar:\n" 702 " case kBaz:\n" 703 " break;\n" 704 " default:\n" 705 " g();\n" 706 " break;\n" 707 "}"); 708 verifyGoogleFormat("switch (x) {\n" 709 " case 1: {\n" 710 " f();\n" 711 " break;\n" 712 " }\n" 713 "}"); 714 verifyGoogleFormat("switch (test)\n" 715 " ;"); 716 717 verifyGoogleFormat("#define OPERATION_CASE(name) \\\n" 718 " case OP_name: \\\n" 719 " return operations::Operation##name\n"); 720 verifyGoogleFormat("Operation codeToOperation(OperationCode OpCode) {\n" 721 " // Get the correction operation class.\n" 722 " switch (OpCode) {\n" 723 " CASE(Add);\n" 724 " CASE(Subtract);\n" 725 " default:\n" 726 " return operations::Unknown;\n" 727 " }\n" 728 "#undef OPERATION_CASE\n" 729 "}"); 730 verifyFormat("DEBUG({\n" 731 " switch (x) {\n" 732 " case A:\n" 733 " f();\n" 734 " break;\n" 735 " // On B:\n" 736 " case B:\n" 737 " g();\n" 738 " break;\n" 739 " }\n" 740 "});"); 741 verifyFormat("switch (a) {\n" 742 "case (b):\n" 743 " return;\n" 744 "}"); 745 746 verifyFormat("switch (a) {\n" 747 "case some_namespace::\n" 748 " some_constant:\n" 749 " return;\n" 750 "}", 751 getLLVMStyleWithColumns(34)); 752 } 753 754 TEST_F(FormatTest, CaseRanges) { 755 verifyFormat("switch (x) {\n" 756 "case 'A' ... 'Z':\n" 757 "case 1 ... 5:\n" 758 " break;\n" 759 "}"); 760 } 761 762 TEST_F(FormatTest, ShortCaseLabels) { 763 FormatStyle Style = getLLVMStyle(); 764 Style.AllowShortCaseLabelsOnASingleLine = true; 765 verifyFormat("switch (a) {\n" 766 "case 1: x = 1; break;\n" 767 "case 2: return;\n" 768 "case 3:\n" 769 "case 4:\n" 770 "case 5: return;\n" 771 "case 6: // comment\n" 772 " return;\n" 773 "case 7:\n" 774 " // comment\n" 775 " return;\n" 776 "default: y = 1; break;\n" 777 "}", 778 Style); 779 verifyFormat("switch (a) {\n" 780 "#if FOO\n" 781 "case 0: return 0;\n" 782 "#endif\n" 783 "}", 784 Style); 785 verifyFormat("switch (a) {\n" 786 "case 1: {\n" 787 "}\n" 788 "case 2: {\n" 789 " return;\n" 790 "}\n" 791 "case 3: {\n" 792 " x = 1;\n" 793 " return;\n" 794 "}\n" 795 "case 4:\n" 796 " if (x)\n" 797 " return;\n" 798 "}", 799 Style); 800 Style.ColumnLimit = 21; 801 verifyFormat("switch (a) {\n" 802 "case 1: x = 1; break;\n" 803 "case 2: return;\n" 804 "case 3:\n" 805 "case 4:\n" 806 "case 5: return;\n" 807 "default:\n" 808 " y = 1;\n" 809 " break;\n" 810 "}", 811 Style); 812 } 813 814 TEST_F(FormatTest, FormatsLabels) { 815 verifyFormat("void f() {\n" 816 " some_code();\n" 817 "test_label:\n" 818 " some_other_code();\n" 819 " {\n" 820 " some_more_code();\n" 821 " another_label:\n" 822 " some_more_code();\n" 823 " }\n" 824 "}"); 825 verifyFormat("{\n" 826 " some_code();\n" 827 "test_label:\n" 828 " some_other_code();\n" 829 "}"); 830 } 831 832 //===----------------------------------------------------------------------===// 833 // Tests for comments. 834 //===----------------------------------------------------------------------===// 835 836 TEST_F(FormatTest, UnderstandsSingleLineComments) { 837 verifyFormat("//* */"); 838 verifyFormat("// line 1\n" 839 "// line 2\n" 840 "void f() {}\n"); 841 842 verifyFormat("void f() {\n" 843 " // Doesn't do anything\n" 844 "}"); 845 verifyFormat("SomeObject\n" 846 " // Calling someFunction on SomeObject\n" 847 " .someFunction();"); 848 verifyFormat("auto result = SomeObject\n" 849 " // Calling someFunction on SomeObject\n" 850 " .someFunction();"); 851 verifyFormat("void f(int i, // some comment (probably for i)\n" 852 " int j, // some comment (probably for j)\n" 853 " int k); // some comment (probably for k)"); 854 verifyFormat("void f(int i,\n" 855 " // some comment (probably for j)\n" 856 " int j,\n" 857 " // some comment (probably for k)\n" 858 " int k);"); 859 860 verifyFormat("int i // This is a fancy variable\n" 861 " = 5; // with nicely aligned comment."); 862 863 verifyFormat("// Leading comment.\n" 864 "int a; // Trailing comment."); 865 verifyFormat("int a; // Trailing comment\n" 866 " // on 2\n" 867 " // or 3 lines.\n" 868 "int b;"); 869 verifyFormat("int a; // Trailing comment\n" 870 "\n" 871 "// Leading comment.\n" 872 "int b;"); 873 verifyFormat("int a; // Comment.\n" 874 " // More details.\n" 875 "int bbbb; // Another comment."); 876 verifyFormat( 877 "int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa; // comment\n" 878 "int bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb; // comment\n" 879 "int cccccccccccccccccccccccccccccc; // comment\n" 880 "int ddd; // looooooooooooooooooooooooong comment\n" 881 "int aaaaaaaaaaaaaaaaaaaaaaa; // comment\n" 882 "int bbbbbbbbbbbbbbbbbbbbb; // comment\n" 883 "int ccccccccccccccccccc; // comment"); 884 885 verifyFormat("#include \"a\" // comment\n" 886 "#include \"a/b/c\" // comment"); 887 verifyFormat("#include <a> // comment\n" 888 "#include <a/b/c> // comment"); 889 EXPECT_EQ("#include \"a\" // comment\n" 890 "#include \"a/b/c\" // comment", 891 format("#include \\\n" 892 " \"a\" // comment\n" 893 "#include \"a/b/c\" // comment")); 894 895 verifyFormat("enum E {\n" 896 " // comment\n" 897 " VAL_A, // comment\n" 898 " VAL_B\n" 899 "};"); 900 901 verifyFormat( 902 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 903 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb; // Trailing comment"); 904 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 905 " // Comment inside a statement.\n" 906 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;"); 907 verifyFormat("SomeFunction(a,\n" 908 " // comment\n" 909 " b + x);"); 910 verifyFormat("SomeFunction(a, a,\n" 911 " // comment\n" 912 " b + x);"); 913 verifyFormat( 914 "bool aaaaaaaaaaaaa = // comment\n" 915 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 916 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 917 918 verifyFormat("int aaaa; // aaaaa\n" 919 "int aa; // aaaaaaa", 920 getLLVMStyleWithColumns(20)); 921 922 EXPECT_EQ("void f() { // This does something ..\n" 923 "}\n" 924 "int a; // This is unrelated", 925 format("void f() { // This does something ..\n" 926 " }\n" 927 "int a; // This is unrelated")); 928 EXPECT_EQ("class C {\n" 929 " void f() { // This does something ..\n" 930 " } // awesome..\n" 931 "\n" 932 " int a; // This is unrelated\n" 933 "};", 934 format("class C{void f() { // This does something ..\n" 935 " } // awesome..\n" 936 " \n" 937 "int a; // This is unrelated\n" 938 "};")); 939 940 EXPECT_EQ("int i; // single line trailing comment", 941 format("int i;\\\n// single line trailing comment")); 942 943 verifyGoogleFormat("int a; // Trailing comment."); 944 945 verifyFormat("someFunction(anotherFunction( // Force break.\n" 946 " parameter));"); 947 948 verifyGoogleFormat("#endif // HEADER_GUARD"); 949 950 verifyFormat("const char *test[] = {\n" 951 " // A\n" 952 " \"aaaa\",\n" 953 " // B\n" 954 " \"aaaaa\"};"); 955 verifyGoogleFormat( 956 "aaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 957 " aaaaaaaaaaaaaaaaaaaaaa); // 81_cols_with_this_comment"); 958 EXPECT_EQ("D(a, {\n" 959 " // test\n" 960 " int a;\n" 961 "});", 962 format("D(a, {\n" 963 "// test\n" 964 "int a;\n" 965 "});")); 966 967 EXPECT_EQ("lineWith(); // comment\n" 968 "// at start\n" 969 "otherLine();", 970 format("lineWith(); // comment\n" 971 "// at start\n" 972 "otherLine();")); 973 EXPECT_EQ("lineWith(); // comment\n" 974 " // at start\n" 975 "otherLine();", 976 format("lineWith(); // comment\n" 977 " // at start\n" 978 "otherLine();")); 979 980 EXPECT_EQ("lineWith(); // comment\n" 981 "// at start\n" 982 "otherLine(); // comment", 983 format("lineWith(); // comment\n" 984 "// at start\n" 985 "otherLine(); // comment")); 986 EXPECT_EQ("lineWith();\n" 987 "// at start\n" 988 "otherLine(); // comment", 989 format("lineWith();\n" 990 " // at start\n" 991 "otherLine(); // comment")); 992 EXPECT_EQ("// first\n" 993 "// at start\n" 994 "otherLine(); // comment", 995 format("// first\n" 996 " // at start\n" 997 "otherLine(); // comment")); 998 EXPECT_EQ("f();\n" 999 "// first\n" 1000 "// at start\n" 1001 "otherLine(); // comment", 1002 format("f();\n" 1003 "// first\n" 1004 " // at start\n" 1005 "otherLine(); // comment")); 1006 verifyFormat("f(); // comment\n" 1007 "// first\n" 1008 "// at start\n" 1009 "otherLine();"); 1010 EXPECT_EQ("f(); // comment\n" 1011 "// first\n" 1012 "// at start\n" 1013 "otherLine();", 1014 format("f(); // comment\n" 1015 "// first\n" 1016 " // at start\n" 1017 "otherLine();")); 1018 EXPECT_EQ("f(); // comment\n" 1019 " // first\n" 1020 "// at start\n" 1021 "otherLine();", 1022 format("f(); // comment\n" 1023 " // first\n" 1024 "// at start\n" 1025 "otherLine();")); 1026 EXPECT_EQ("void f() {\n" 1027 " lineWith(); // comment\n" 1028 " // at start\n" 1029 "}", 1030 format("void f() {\n" 1031 " lineWith(); // comment\n" 1032 " // at start\n" 1033 "}")); 1034 1035 verifyFormat("#define A \\\n" 1036 " int i; /* iiiiiiiiiiiiiiiiiiiii */ \\\n" 1037 " int jjjjjjjjjjjjjjjjjjjjjjjj; /* */", 1038 getLLVMStyleWithColumns(60)); 1039 verifyFormat( 1040 "#define A \\\n" 1041 " int i; /* iiiiiiiiiiiiiiiiiiiii */ \\\n" 1042 " int jjjjjjjjjjjjjjjjjjjjjjjj; /* */", 1043 getLLVMStyleWithColumns(61)); 1044 1045 verifyFormat("if ( // This is some comment\n" 1046 " x + 3) {\n" 1047 "}"); 1048 EXPECT_EQ("if ( // This is some comment\n" 1049 " // spanning two lines\n" 1050 " x + 3) {\n" 1051 "}", 1052 format("if( // This is some comment\n" 1053 " // spanning two lines\n" 1054 " x + 3) {\n" 1055 "}")); 1056 1057 verifyNoCrash("/\\\n/"); 1058 verifyNoCrash("/\\\n* */"); 1059 } 1060 1061 TEST_F(FormatTest, KeepsParameterWithTrailingCommentsOnTheirOwnLine) { 1062 EXPECT_EQ("SomeFunction(a,\n" 1063 " b, // comment\n" 1064 " c);", 1065 format("SomeFunction(a,\n" 1066 " b, // comment\n" 1067 " c);")); 1068 EXPECT_EQ("SomeFunction(a, b,\n" 1069 " // comment\n" 1070 " c);", 1071 format("SomeFunction(a,\n" 1072 " b,\n" 1073 " // comment\n" 1074 " c);")); 1075 EXPECT_EQ("SomeFunction(a, b, // comment (unclear relation)\n" 1076 " c);", 1077 format("SomeFunction(a, b, // comment (unclear relation)\n" 1078 " c);")); 1079 EXPECT_EQ("SomeFunction(a, // comment\n" 1080 " b,\n" 1081 " c); // comment", 1082 format("SomeFunction(a, // comment\n" 1083 " b,\n" 1084 " c); // comment")); 1085 } 1086 1087 TEST_F(FormatTest, CanFormatCommentsLocally) { 1088 EXPECT_EQ("int a; // comment\n" 1089 "int b; // comment", 1090 format("int a; // comment\n" 1091 "int b; // comment", 1092 0, 0, getLLVMStyle())); 1093 EXPECT_EQ("int a; // comment\n" 1094 " // line 2\n" 1095 "int b;", 1096 format("int a; // comment\n" 1097 " // line 2\n" 1098 "int b;", 1099 28, 0, getLLVMStyle())); 1100 EXPECT_EQ("int aaaaaa; // comment\n" 1101 "int b;\n" 1102 "int c; // unrelated comment", 1103 format("int aaaaaa; // comment\n" 1104 "int b;\n" 1105 "int c; // unrelated comment", 1106 31, 0, getLLVMStyle())); 1107 1108 EXPECT_EQ("int a; // This\n" 1109 " // is\n" 1110 " // a", 1111 format("int a; // This\n" 1112 " // is\n" 1113 " // a", 1114 0, 0, getLLVMStyle())); 1115 EXPECT_EQ("int a; // This\n" 1116 " // is\n" 1117 " // a\n" 1118 "// This is b\n" 1119 "int b;", 1120 format("int a; // This\n" 1121 " // is\n" 1122 " // a\n" 1123 "// This is b\n" 1124 "int b;", 1125 0, 0, getLLVMStyle())); 1126 EXPECT_EQ("int a; // This\n" 1127 " // is\n" 1128 " // a\n" 1129 "\n" 1130 " // This is unrelated", 1131 format("int a; // This\n" 1132 " // is\n" 1133 " // a\n" 1134 "\n" 1135 " // This is unrelated", 1136 0, 0, getLLVMStyle())); 1137 EXPECT_EQ("int a;\n" 1138 "// This is\n" 1139 "// not formatted. ", 1140 format("int a;\n" 1141 "// This is\n" 1142 "// not formatted. ", 1143 0, 0, getLLVMStyle())); 1144 } 1145 1146 TEST_F(FormatTest, RemovesTrailingWhitespaceOfComments) { 1147 EXPECT_EQ("// comment", format("// comment ")); 1148 EXPECT_EQ("int aaaaaaa, bbbbbbb; // comment", 1149 format("int aaaaaaa, bbbbbbb; // comment ", 1150 getLLVMStyleWithColumns(33))); 1151 EXPECT_EQ("// comment\\\n", format("// comment\\\n \t \v \f ")); 1152 EXPECT_EQ("// comment \\\n", format("// comment \\\n \t \v \f ")); 1153 } 1154 1155 TEST_F(FormatTest, UnderstandsBlockComments) { 1156 verifyFormat("f(/*noSpaceAfterParameterNamingComment=*/true);"); 1157 verifyFormat("void f() { g(/*aaa=*/x, /*bbb=*/!y); }"); 1158 EXPECT_EQ("f(aaaaaaaaaaaaaaaaaaaaaaaaa, /* Trailing comment for aa... */\n" 1159 " bbbbbbbbbbbbbbbbbbbbbbbbb);", 1160 format("f(aaaaaaaaaaaaaaaaaaaaaaaaa , \\\n" 1161 "/* Trailing comment for aa... */\n" 1162 " bbbbbbbbbbbbbbbbbbbbbbbbb);")); 1163 EXPECT_EQ( 1164 "f(aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 1165 " /* Leading comment for bb... */ bbbbbbbbbbbbbbbbbbbbbbbbb);", 1166 format("f(aaaaaaaaaaaaaaaaaaaaaaaaa , \n" 1167 "/* Leading comment for bb... */ bbbbbbbbbbbbbbbbbbbbbbbbb);")); 1168 EXPECT_EQ( 1169 "void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 1170 " aaaaaaaaaaaaaaaaaa,\n" 1171 " aaaaaaaaaaaaaaaaaa) { /*aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa*/\n" 1172 "}", 1173 format("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 1174 " aaaaaaaaaaaaaaaaaa ,\n" 1175 " aaaaaaaaaaaaaaaaaa) { /*aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa*/\n" 1176 "}")); 1177 1178 FormatStyle NoBinPacking = getLLVMStyle(); 1179 NoBinPacking.BinPackParameters = false; 1180 verifyFormat("aaaaaaaa(/* parameter 1 */ aaaaaa,\n" 1181 " /* parameter 2 */ aaaaaa,\n" 1182 " /* parameter 3 */ aaaaaa,\n" 1183 " /* parameter 4 */ aaaaaa);", 1184 NoBinPacking); 1185 1186 // Aligning block comments in macros. 1187 verifyGoogleFormat("#define A \\\n" 1188 " int i; /*a*/ \\\n" 1189 " int jjj; /*b*/"); 1190 } 1191 1192 TEST_F(FormatTest, AlignsBlockComments) { 1193 EXPECT_EQ("/*\n" 1194 " * Really multi-line\n" 1195 " * comment.\n" 1196 " */\n" 1197 "void f() {}", 1198 format(" /*\n" 1199 " * Really multi-line\n" 1200 " * comment.\n" 1201 " */\n" 1202 " void f() {}")); 1203 EXPECT_EQ("class C {\n" 1204 " /*\n" 1205 " * Another multi-line\n" 1206 " * comment.\n" 1207 " */\n" 1208 " void f() {}\n" 1209 "};", 1210 format("class C {\n" 1211 "/*\n" 1212 " * Another multi-line\n" 1213 " * comment.\n" 1214 " */\n" 1215 "void f() {}\n" 1216 "};")); 1217 EXPECT_EQ("/*\n" 1218 " 1. This is a comment with non-trivial formatting.\n" 1219 " 1.1. We have to indent/outdent all lines equally\n" 1220 " 1.1.1. to keep the formatting.\n" 1221 " */", 1222 format(" /*\n" 1223 " 1. This is a comment with non-trivial formatting.\n" 1224 " 1.1. We have to indent/outdent all lines equally\n" 1225 " 1.1.1. to keep the formatting.\n" 1226 " */")); 1227 EXPECT_EQ("/*\n" 1228 "Don't try to outdent if there's not enough indentation.\n" 1229 "*/", 1230 format(" /*\n" 1231 " Don't try to outdent if there's not enough indentation.\n" 1232 " */")); 1233 1234 EXPECT_EQ("int i; /* Comment with empty...\n" 1235 " *\n" 1236 " * line. */", 1237 format("int i; /* Comment with empty...\n" 1238 " *\n" 1239 " * line. */")); 1240 EXPECT_EQ("int foobar = 0; /* comment */\n" 1241 "int bar = 0; /* multiline\n" 1242 " comment 1 */\n" 1243 "int baz = 0; /* multiline\n" 1244 " comment 2 */\n" 1245 "int bzz = 0; /* multiline\n" 1246 " comment 3 */", 1247 format("int foobar = 0; /* comment */\n" 1248 "int bar = 0; /* multiline\n" 1249 " comment 1 */\n" 1250 "int baz = 0; /* multiline\n" 1251 " comment 2 */\n" 1252 "int bzz = 0; /* multiline\n" 1253 " comment 3 */")); 1254 EXPECT_EQ("int foobar = 0; /* comment */\n" 1255 "int bar = 0; /* multiline\n" 1256 " comment */\n" 1257 "int baz = 0; /* multiline\n" 1258 "comment */", 1259 format("int foobar = 0; /* comment */\n" 1260 "int bar = 0; /* multiline\n" 1261 "comment */\n" 1262 "int baz = 0; /* multiline\n" 1263 "comment */")); 1264 } 1265 1266 TEST_F(FormatTest, CorrectlyHandlesLengthOfBlockComments) { 1267 EXPECT_EQ("double *x; /* aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 1268 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa */", 1269 format("double *x; /* aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 1270 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa */")); 1271 EXPECT_EQ( 1272 "void ffffffffffff(\n" 1273 " int aaaaaaaa, int bbbbbbbb,\n" 1274 " int cccccccccccc) { /*\n" 1275 " aaaaaaaaaa\n" 1276 " aaaaaaaaaaaaa\n" 1277 " bbbbbbbbbbbbbb\n" 1278 " bbbbbbbbbb\n" 1279 " */\n" 1280 "}", 1281 format("void ffffffffffff(int aaaaaaaa, int bbbbbbbb, int cccccccccccc)\n" 1282 "{ /*\n" 1283 " aaaaaaaaaa aaaaaaaaaaaaa\n" 1284 " bbbbbbbbbbbbbb bbbbbbbbbb\n" 1285 " */\n" 1286 "}", 1287 getLLVMStyleWithColumns(40))); 1288 } 1289 1290 TEST_F(FormatTest, DontBreakNonTrailingBlockComments) { 1291 EXPECT_EQ("void ffffffffff(\n" 1292 " int aaaaa /* test */);", 1293 format("void ffffffffff(int aaaaa /* test */);", 1294 getLLVMStyleWithColumns(35))); 1295 } 1296 1297 TEST_F(FormatTest, SplitsLongCxxComments) { 1298 EXPECT_EQ("// A comment that\n" 1299 "// doesn't fit on\n" 1300 "// one line", 1301 format("// A comment that doesn't fit on one line", 1302 getLLVMStyleWithColumns(20))); 1303 EXPECT_EQ("// a b c d\n" 1304 "// e f g\n" 1305 "// h i j k", 1306 format("// a b c d e f g h i j k", getLLVMStyleWithColumns(10))); 1307 EXPECT_EQ( 1308 "// a b c d\n" 1309 "// e f g\n" 1310 "// h i j k", 1311 format("\\\n// a b c d e f g h i j k", getLLVMStyleWithColumns(10))); 1312 EXPECT_EQ("if (true) // A comment that\n" 1313 " // doesn't fit on\n" 1314 " // one line", 1315 format("if (true) // A comment that doesn't fit on one line ", 1316 getLLVMStyleWithColumns(30))); 1317 EXPECT_EQ("// Don't_touch_leading_whitespace", 1318 format("// Don't_touch_leading_whitespace", 1319 getLLVMStyleWithColumns(20))); 1320 EXPECT_EQ("// Add leading\n" 1321 "// whitespace", 1322 format("//Add leading whitespace", getLLVMStyleWithColumns(20))); 1323 EXPECT_EQ("// whitespace", format("//whitespace", getLLVMStyle())); 1324 EXPECT_EQ("// Even if it makes the line exceed the column\n" 1325 "// limit", 1326 format("//Even if it makes the line exceed the column limit", 1327 getLLVMStyleWithColumns(51))); 1328 EXPECT_EQ("//--But not here", format("//--But not here", getLLVMStyle())); 1329 1330 EXPECT_EQ("// aa bb cc dd", 1331 format("// aa bb cc dd ", 1332 getLLVMStyleWithColumns(15))); 1333 1334 EXPECT_EQ("// A comment before\n" 1335 "// a macro\n" 1336 "// definition\n" 1337 "#define a b", 1338 format("// A comment before a macro definition\n" 1339 "#define a b", 1340 getLLVMStyleWithColumns(20))); 1341 EXPECT_EQ("void ffffff(\n" 1342 " int aaaaaaaaa, // wwww\n" 1343 " int bbbbbbbbbb, // xxxxxxx\n" 1344 " // yyyyyyyyyy\n" 1345 " int c, int d, int e) {}", 1346 format("void ffffff(\n" 1347 " int aaaaaaaaa, // wwww\n" 1348 " int bbbbbbbbbb, // xxxxxxx yyyyyyyyyy\n" 1349 " int c, int d, int e) {}", 1350 getLLVMStyleWithColumns(40))); 1351 EXPECT_EQ("//\t aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 1352 format("//\t aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 1353 getLLVMStyleWithColumns(20))); 1354 EXPECT_EQ( 1355 "#define XXX // a b c d\n" 1356 " // e f g h", 1357 format("#define XXX // a b c d e f g h", getLLVMStyleWithColumns(22))); 1358 EXPECT_EQ( 1359 "#define XXX // q w e r\n" 1360 " // t y u i", 1361 format("#define XXX //q w e r t y u i", getLLVMStyleWithColumns(22))); 1362 } 1363 1364 TEST_F(FormatTest, PreservesHangingIndentInCxxComments) { 1365 EXPECT_EQ("// A comment\n" 1366 "// that doesn't\n" 1367 "// fit on one\n" 1368 "// line", 1369 format("// A comment that doesn't fit on one line", 1370 getLLVMStyleWithColumns(20))); 1371 EXPECT_EQ("/// A comment\n" 1372 "/// that doesn't\n" 1373 "/// fit on one\n" 1374 "/// line", 1375 format("/// A comment that doesn't fit on one line", 1376 getLLVMStyleWithColumns(20))); 1377 } 1378 1379 TEST_F(FormatTest, DontSplitLineCommentsWithEscapedNewlines) { 1380 EXPECT_EQ("// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 1381 "// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 1382 "// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 1383 format("// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 1384 "// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 1385 "// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")); 1386 EXPECT_EQ("int a; // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1387 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1388 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", 1389 format("int a; // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1390 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1391 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", 1392 getLLVMStyleWithColumns(50))); 1393 // FIXME: One day we might want to implement adjustment of leading whitespace 1394 // of the consecutive lines in this kind of comment: 1395 EXPECT_EQ("double\n" 1396 " a; // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1397 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1398 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", 1399 format("double a; // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1400 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1401 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", 1402 getLLVMStyleWithColumns(49))); 1403 } 1404 1405 TEST_F(FormatTest, DontSplitLineCommentsWithPragmas) { 1406 FormatStyle Pragmas = getLLVMStyleWithColumns(30); 1407 Pragmas.CommentPragmas = "^ IWYU pragma:"; 1408 EXPECT_EQ( 1409 "// IWYU pragma: aaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbb", 1410 format("// IWYU pragma: aaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbb", Pragmas)); 1411 EXPECT_EQ( 1412 "/* IWYU pragma: aaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbb */", 1413 format("/* IWYU pragma: aaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbb */", Pragmas)); 1414 } 1415 1416 TEST_F(FormatTest, PriorityOfCommentBreaking) { 1417 EXPECT_EQ("if (xxx ==\n" 1418 " yyy && // aaaaaaaaaaaa bbbbbbbbb\n" 1419 " zzz)\n" 1420 " q();", 1421 format("if (xxx == yyy && // aaaaaaaaaaaa bbbbbbbbb\n" 1422 " zzz) q();", 1423 getLLVMStyleWithColumns(40))); 1424 EXPECT_EQ("if (xxxxxxxxxx ==\n" 1425 " yyy && // aaaaaa bbbbbbbb cccc\n" 1426 " zzz)\n" 1427 " q();", 1428 format("if (xxxxxxxxxx == yyy && // aaaaaa bbbbbbbb cccc\n" 1429 " zzz) q();", 1430 getLLVMStyleWithColumns(40))); 1431 EXPECT_EQ("if (xxxxxxxxxx &&\n" 1432 " yyy || // aaaaaa bbbbbbbb cccc\n" 1433 " zzz)\n" 1434 " q();", 1435 format("if (xxxxxxxxxx && yyy || // aaaaaa bbbbbbbb cccc\n" 1436 " zzz) q();", 1437 getLLVMStyleWithColumns(40))); 1438 EXPECT_EQ("fffffffff(\n" 1439 " &xxx, // aaaaaaaaaaaa bbbbbbbbbbb\n" 1440 " zzz);", 1441 format("fffffffff(&xxx, // aaaaaaaaaaaa bbbbbbbbbbb\n" 1442 " zzz);", 1443 getLLVMStyleWithColumns(40))); 1444 } 1445 1446 TEST_F(FormatTest, MultiLineCommentsInDefines) { 1447 EXPECT_EQ("#define A(x) /* \\\n" 1448 " a comment \\\n" 1449 " inside */ \\\n" 1450 " f();", 1451 format("#define A(x) /* \\\n" 1452 " a comment \\\n" 1453 " inside */ \\\n" 1454 " f();", 1455 getLLVMStyleWithColumns(17))); 1456 EXPECT_EQ("#define A( \\\n" 1457 " x) /* \\\n" 1458 " a comment \\\n" 1459 " inside */ \\\n" 1460 " f();", 1461 format("#define A( \\\n" 1462 " x) /* \\\n" 1463 " a comment \\\n" 1464 " inside */ \\\n" 1465 " f();", 1466 getLLVMStyleWithColumns(17))); 1467 } 1468 1469 TEST_F(FormatTest, ParsesCommentsAdjacentToPPDirectives) { 1470 EXPECT_EQ("namespace {}\n// Test\n#define A", 1471 format("namespace {}\n // Test\n#define A")); 1472 EXPECT_EQ("namespace {}\n/* Test */\n#define A", 1473 format("namespace {}\n /* Test */\n#define A")); 1474 EXPECT_EQ("namespace {}\n/* Test */ #define A", 1475 format("namespace {}\n /* Test */ #define A")); 1476 } 1477 1478 TEST_F(FormatTest, SplitsLongLinesInComments) { 1479 EXPECT_EQ("/* This is a long\n" 1480 " * comment that\n" 1481 " * doesn't\n" 1482 " * fit on one line.\n" 1483 " */", 1484 format("/* " 1485 "This is a long " 1486 "comment that " 1487 "doesn't " 1488 "fit on one line. */", 1489 getLLVMStyleWithColumns(20))); 1490 EXPECT_EQ( 1491 "/* a b c d\n" 1492 " * e f g\n" 1493 " * h i j k\n" 1494 " */", 1495 format("/* a b c d e f g h i j k */", getLLVMStyleWithColumns(10))); 1496 EXPECT_EQ( 1497 "/* a b c d\n" 1498 " * e f g\n" 1499 " * h i j k\n" 1500 " */", 1501 format("\\\n/* a b c d e f g h i j k */", getLLVMStyleWithColumns(10))); 1502 EXPECT_EQ("/*\n" 1503 "This is a long\n" 1504 "comment that doesn't\n" 1505 "fit on one line.\n" 1506 "*/", 1507 format("/*\n" 1508 "This is a long " 1509 "comment that doesn't " 1510 "fit on one line. \n" 1511 "*/", 1512 getLLVMStyleWithColumns(20))); 1513 EXPECT_EQ("/*\n" 1514 " * This is a long\n" 1515 " * comment that\n" 1516 " * doesn't fit on\n" 1517 " * one line.\n" 1518 " */", 1519 format("/* \n" 1520 " * This is a long " 1521 " comment that " 1522 " doesn't fit on " 1523 " one line. \n" 1524 " */", 1525 getLLVMStyleWithColumns(20))); 1526 EXPECT_EQ("/*\n" 1527 " * This_is_a_comment_with_words_that_dont_fit_on_one_line\n" 1528 " * so_it_should_be_broken\n" 1529 " * wherever_a_space_occurs\n" 1530 " */", 1531 format("/*\n" 1532 " * This_is_a_comment_with_words_that_dont_fit_on_one_line " 1533 " so_it_should_be_broken " 1534 " wherever_a_space_occurs \n" 1535 " */", 1536 getLLVMStyleWithColumns(20))); 1537 EXPECT_EQ("/*\n" 1538 " * This_comment_can_not_be_broken_into_lines\n" 1539 " */", 1540 format("/*\n" 1541 " * This_comment_can_not_be_broken_into_lines\n" 1542 " */", 1543 getLLVMStyleWithColumns(20))); 1544 EXPECT_EQ("{\n" 1545 " /*\n" 1546 " This is another\n" 1547 " long comment that\n" 1548 " doesn't fit on one\n" 1549 " line 1234567890\n" 1550 " */\n" 1551 "}", 1552 format("{\n" 1553 "/*\n" 1554 "This is another " 1555 " long comment that " 1556 " doesn't fit on one" 1557 " line 1234567890\n" 1558 "*/\n" 1559 "}", 1560 getLLVMStyleWithColumns(20))); 1561 EXPECT_EQ("{\n" 1562 " /*\n" 1563 " * This i s\n" 1564 " * another comment\n" 1565 " * t hat doesn' t\n" 1566 " * fit on one l i\n" 1567 " * n e\n" 1568 " */\n" 1569 "}", 1570 format("{\n" 1571 "/*\n" 1572 " * This i s" 1573 " another comment" 1574 " t hat doesn' t" 1575 " fit on one l i" 1576 " n e\n" 1577 " */\n" 1578 "}", 1579 getLLVMStyleWithColumns(20))); 1580 EXPECT_EQ("/*\n" 1581 " * This is a long\n" 1582 " * comment that\n" 1583 " * doesn't fit on\n" 1584 " * one line\n" 1585 " */", 1586 format(" /*\n" 1587 " * This is a long comment that doesn't fit on one line\n" 1588 " */", 1589 getLLVMStyleWithColumns(20))); 1590 EXPECT_EQ("{\n" 1591 " if (something) /* This is a\n" 1592 " long\n" 1593 " comment */\n" 1594 " ;\n" 1595 "}", 1596 format("{\n" 1597 " if (something) /* This is a long comment */\n" 1598 " ;\n" 1599 "}", 1600 getLLVMStyleWithColumns(30))); 1601 1602 EXPECT_EQ("/* A comment before\n" 1603 " * a macro\n" 1604 " * definition */\n" 1605 "#define a b", 1606 format("/* A comment before a macro definition */\n" 1607 "#define a b", 1608 getLLVMStyleWithColumns(20))); 1609 1610 EXPECT_EQ("/* some comment\n" 1611 " * a comment\n" 1612 "* that we break\n" 1613 " * another comment\n" 1614 "* we have to break\n" 1615 "* a left comment\n" 1616 " */", 1617 format(" /* some comment\n" 1618 " * a comment that we break\n" 1619 " * another comment we have to break\n" 1620 "* a left comment\n" 1621 " */", 1622 getLLVMStyleWithColumns(20))); 1623 1624 EXPECT_EQ("/*\n" 1625 "\n" 1626 "\n" 1627 " */\n", 1628 format(" /* \n" 1629 " \n" 1630 " \n" 1631 " */\n")); 1632 1633 EXPECT_EQ("/* a a */", 1634 format("/* a a */", getLLVMStyleWithColumns(15))); 1635 EXPECT_EQ("/* a a bc */", 1636 format("/* a a bc */", getLLVMStyleWithColumns(15))); 1637 EXPECT_EQ("/* aaa aaa\n" 1638 " * aaaaa */", 1639 format("/* aaa aaa aaaaa */", getLLVMStyleWithColumns(15))); 1640 EXPECT_EQ("/* aaa aaa\n" 1641 " * aaaaa */", 1642 format("/* aaa aaa aaaaa */", getLLVMStyleWithColumns(15))); 1643 } 1644 1645 TEST_F(FormatTest, SplitsLongLinesInCommentsInPreprocessor) { 1646 EXPECT_EQ("#define X \\\n" 1647 " /* \\\n" 1648 " Test \\\n" 1649 " Macro comment \\\n" 1650 " with a long \\\n" 1651 " line \\\n" 1652 " */ \\\n" 1653 " A + B", 1654 format("#define X \\\n" 1655 " /*\n" 1656 " Test\n" 1657 " Macro comment with a long line\n" 1658 " */ \\\n" 1659 " A + B", 1660 getLLVMStyleWithColumns(20))); 1661 EXPECT_EQ("#define X \\\n" 1662 " /* Macro comment \\\n" 1663 " with a long \\\n" 1664 " line */ \\\n" 1665 " A + B", 1666 format("#define X \\\n" 1667 " /* Macro comment with a long\n" 1668 " line */ \\\n" 1669 " A + B", 1670 getLLVMStyleWithColumns(20))); 1671 EXPECT_EQ("#define X \\\n" 1672 " /* Macro comment \\\n" 1673 " * with a long \\\n" 1674 " * line */ \\\n" 1675 " A + B", 1676 format("#define X \\\n" 1677 " /* Macro comment with a long line */ \\\n" 1678 " A + B", 1679 getLLVMStyleWithColumns(20))); 1680 } 1681 1682 TEST_F(FormatTest, CommentsInStaticInitializers) { 1683 EXPECT_EQ( 1684 "static SomeType type = {aaaaaaaaaaaaaaaaaaaa, /* comment */\n" 1685 " aaaaaaaaaaaaaaaaaaaa /* comment */,\n" 1686 " /* comment */ aaaaaaaaaaaaaaaaaaaa,\n" 1687 " aaaaaaaaaaaaaaaaaaaa, // comment\n" 1688 " aaaaaaaaaaaaaaaaaaaa};", 1689 format("static SomeType type = { aaaaaaaaaaaaaaaaaaaa , /* comment */\n" 1690 " aaaaaaaaaaaaaaaaaaaa /* comment */ ,\n" 1691 " /* comment */ aaaaaaaaaaaaaaaaaaaa ,\n" 1692 " aaaaaaaaaaaaaaaaaaaa , // comment\n" 1693 " aaaaaaaaaaaaaaaaaaaa };")); 1694 verifyFormat("static SomeType type = {aaaaaaaaaaa, // comment for aa...\n" 1695 " bbbbbbbbbbb, ccccccccccc};"); 1696 verifyFormat("static SomeType type = {aaaaaaaaaaa,\n" 1697 " // comment for bb....\n" 1698 " bbbbbbbbbbb, ccccccccccc};"); 1699 verifyGoogleFormat( 1700 "static SomeType type = {aaaaaaaaaaa, // comment for aa...\n" 1701 " bbbbbbbbbbb, ccccccccccc};"); 1702 verifyGoogleFormat("static SomeType type = {aaaaaaaaaaa,\n" 1703 " // comment for bb....\n" 1704 " bbbbbbbbbbb, ccccccccccc};"); 1705 1706 verifyFormat("S s = {{a, b, c}, // Group #1\n" 1707 " {d, e, f}, // Group #2\n" 1708 " {g, h, i}}; // Group #3"); 1709 verifyFormat("S s = {{// Group #1\n" 1710 " a, b, c},\n" 1711 " {// Group #2\n" 1712 " d, e, f},\n" 1713 " {// Group #3\n" 1714 " g, h, i}};"); 1715 1716 EXPECT_EQ("S s = {\n" 1717 " // Some comment\n" 1718 " a,\n" 1719 "\n" 1720 " // Comment after empty line\n" 1721 " b}", 1722 format("S s = {\n" 1723 " // Some comment\n" 1724 " a,\n" 1725 " \n" 1726 " // Comment after empty line\n" 1727 " b\n" 1728 "}")); 1729 EXPECT_EQ("S s = {\n" 1730 " /* Some comment */\n" 1731 " a,\n" 1732 "\n" 1733 " /* Comment after empty line */\n" 1734 " b}", 1735 format("S s = {\n" 1736 " /* Some comment */\n" 1737 " a,\n" 1738 " \n" 1739 " /* Comment after empty line */\n" 1740 " b\n" 1741 "}")); 1742 verifyFormat("const uint8_t aaaaaaaaaaaaaaaaaaaaaa[0] = {\n" 1743 " 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // comment\n" 1744 " 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // comment\n" 1745 " 0x00, 0x00, 0x00, 0x00}; // comment\n"); 1746 } 1747 1748 TEST_F(FormatTest, IgnoresIf0Contents) { 1749 EXPECT_EQ("#if 0\n" 1750 "}{)(&*(^%%#%@! fsadj f;ldjs ,:;| <<<>>>][)(][\n" 1751 "#endif\n" 1752 "void f() {}", 1753 format("#if 0\n" 1754 "}{)(&*(^%%#%@! fsadj f;ldjs ,:;| <<<>>>][)(][\n" 1755 "#endif\n" 1756 "void f( ) { }")); 1757 EXPECT_EQ("#if false\n" 1758 "void f( ) { }\n" 1759 "#endif\n" 1760 "void g() {}\n", 1761 format("#if false\n" 1762 "void f( ) { }\n" 1763 "#endif\n" 1764 "void g( ) { }\n")); 1765 EXPECT_EQ("enum E {\n" 1766 " One,\n" 1767 " Two,\n" 1768 "#if 0\n" 1769 "Three,\n" 1770 " Four,\n" 1771 "#endif\n" 1772 " Five\n" 1773 "};", 1774 format("enum E {\n" 1775 " One,Two,\n" 1776 "#if 0\n" 1777 "Three,\n" 1778 " Four,\n" 1779 "#endif\n" 1780 " Five};")); 1781 EXPECT_EQ("enum F {\n" 1782 " One,\n" 1783 "#if 1\n" 1784 " Two,\n" 1785 "#if 0\n" 1786 "Three,\n" 1787 " Four,\n" 1788 "#endif\n" 1789 " Five\n" 1790 "#endif\n" 1791 "};", 1792 format("enum F {\n" 1793 "One,\n" 1794 "#if 1\n" 1795 "Two,\n" 1796 "#if 0\n" 1797 "Three,\n" 1798 " Four,\n" 1799 "#endif\n" 1800 "Five\n" 1801 "#endif\n" 1802 "};")); 1803 EXPECT_EQ("enum G {\n" 1804 " One,\n" 1805 "#if 0\n" 1806 "Two,\n" 1807 "#else\n" 1808 " Three,\n" 1809 "#endif\n" 1810 " Four\n" 1811 "};", 1812 format("enum G {\n" 1813 "One,\n" 1814 "#if 0\n" 1815 "Two,\n" 1816 "#else\n" 1817 "Three,\n" 1818 "#endif\n" 1819 "Four\n" 1820 "};")); 1821 EXPECT_EQ("enum H {\n" 1822 " One,\n" 1823 "#if 0\n" 1824 "#ifdef Q\n" 1825 "Two,\n" 1826 "#else\n" 1827 "Three,\n" 1828 "#endif\n" 1829 "#endif\n" 1830 " Four\n" 1831 "};", 1832 format("enum H {\n" 1833 "One,\n" 1834 "#if 0\n" 1835 "#ifdef Q\n" 1836 "Two,\n" 1837 "#else\n" 1838 "Three,\n" 1839 "#endif\n" 1840 "#endif\n" 1841 "Four\n" 1842 "};")); 1843 EXPECT_EQ("enum I {\n" 1844 " One,\n" 1845 "#if /* test */ 0 || 1\n" 1846 "Two,\n" 1847 "Three,\n" 1848 "#endif\n" 1849 " Four\n" 1850 "};", 1851 format("enum I {\n" 1852 "One,\n" 1853 "#if /* test */ 0 || 1\n" 1854 "Two,\n" 1855 "Three,\n" 1856 "#endif\n" 1857 "Four\n" 1858 "};")); 1859 EXPECT_EQ("enum J {\n" 1860 " One,\n" 1861 "#if 0\n" 1862 "#if 0\n" 1863 "Two,\n" 1864 "#else\n" 1865 "Three,\n" 1866 "#endif\n" 1867 "Four,\n" 1868 "#endif\n" 1869 " Five\n" 1870 "};", 1871 format("enum J {\n" 1872 "One,\n" 1873 "#if 0\n" 1874 "#if 0\n" 1875 "Two,\n" 1876 "#else\n" 1877 "Three,\n" 1878 "#endif\n" 1879 "Four,\n" 1880 "#endif\n" 1881 "Five\n" 1882 "};")); 1883 } 1884 1885 //===----------------------------------------------------------------------===// 1886 // Tests for classes, namespaces, etc. 1887 //===----------------------------------------------------------------------===// 1888 1889 TEST_F(FormatTest, DoesNotBreakSemiAfterClassDecl) { 1890 verifyFormat("class A {};"); 1891 } 1892 1893 TEST_F(FormatTest, UnderstandsAccessSpecifiers) { 1894 verifyFormat("class A {\n" 1895 "public:\n" 1896 "public: // comment\n" 1897 "protected:\n" 1898 "private:\n" 1899 " void f() {}\n" 1900 "};"); 1901 verifyGoogleFormat("class A {\n" 1902 " public:\n" 1903 " protected:\n" 1904 " private:\n" 1905 " void f() {}\n" 1906 "};"); 1907 verifyFormat("class A {\n" 1908 "public slots:\n" 1909 " void f() {}\n" 1910 "public Q_SLOTS:\n" 1911 " void f() {}\n" 1912 "signals:\n" 1913 " void g();\n" 1914 "};"); 1915 1916 // Don't interpret 'signals' the wrong way. 1917 verifyFormat("signals.set();"); 1918 verifyFormat("for (Signals signals : f()) {\n}"); 1919 } 1920 1921 TEST_F(FormatTest, SeparatesLogicalBlocks) { 1922 EXPECT_EQ("class A {\n" 1923 "public:\n" 1924 " void f();\n" 1925 "\n" 1926 "private:\n" 1927 " void g() {}\n" 1928 " // test\n" 1929 "protected:\n" 1930 " int h;\n" 1931 "};", 1932 format("class A {\n" 1933 "public:\n" 1934 "void f();\n" 1935 "private:\n" 1936 "void g() {}\n" 1937 "// test\n" 1938 "protected:\n" 1939 "int h;\n" 1940 "};")); 1941 EXPECT_EQ("class A {\n" 1942 "protected:\n" 1943 "public:\n" 1944 " void f();\n" 1945 "};", 1946 format("class A {\n" 1947 "protected:\n" 1948 "\n" 1949 "public:\n" 1950 "\n" 1951 " void f();\n" 1952 "};")); 1953 1954 // Even ensure proper spacing inside macros. 1955 EXPECT_EQ("#define B \\\n" 1956 " class A { \\\n" 1957 " protected: \\\n" 1958 " public: \\\n" 1959 " void f(); \\\n" 1960 " };", 1961 format("#define B \\\n" 1962 " class A { \\\n" 1963 " protected: \\\n" 1964 " \\\n" 1965 " public: \\\n" 1966 " \\\n" 1967 " void f(); \\\n" 1968 " };", 1969 getGoogleStyle())); 1970 // But don't remove empty lines after macros ending in access specifiers. 1971 EXPECT_EQ("#define A private:\n" 1972 "\n" 1973 "int i;", 1974 format("#define A private:\n" 1975 "\n" 1976 "int i;")); 1977 } 1978 1979 TEST_F(FormatTest, FormatsClasses) { 1980 verifyFormat("class A : public B {};"); 1981 verifyFormat("class A : public ::B {};"); 1982 1983 verifyFormat( 1984 "class AAAAAAAAAAAAAAAAAAAA : public BBBBBBBBBBBBBBBBBBBBBBBBBBBBBB,\n" 1985 " public CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC {};"); 1986 verifyFormat("class AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n" 1987 " : public BBBBBBBBBBBBBBBBBBBBBBBBBBBBBB,\n" 1988 " public CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC {};"); 1989 verifyFormat( 1990 "class A : public B, public C, public D, public E, public F {};"); 1991 verifyFormat("class AAAAAAAAAAAA : public B,\n" 1992 " public C,\n" 1993 " public D,\n" 1994 " public E,\n" 1995 " public F,\n" 1996 " public G {};"); 1997 1998 verifyFormat("class\n" 1999 " ReallyReallyLongClassName {\n" 2000 " int i;\n" 2001 "};", 2002 getLLVMStyleWithColumns(32)); 2003 verifyFormat("struct aaaaaaaaaaaaa : public aaaaaaaaaaaaaaaaaaa< // break\n" 2004 " aaaaaaaaaaaaaaaa> {};"); 2005 verifyFormat("struct aaaaaaaaaaaaaaaaaaaa\n" 2006 " : public aaaaaaaaaaaaaaaaaaa<aaaaaaaaaaaaaaaaaaaaa,\n" 2007 " aaaaaaaaaaaaaaaaaaaaaa> {};"); 2008 verifyFormat("template <class R, class C>\n" 2009 "struct Aaaaaaaaaaaaaaaaa<R (C::*)(int) const>\n" 2010 " : Aaaaaaaaaaaaaaaaa<R (C::*)(int)> {};"); 2011 verifyFormat("class ::A::B {};"); 2012 } 2013 2014 TEST_F(FormatTest, FormatsVariableDeclarationsAfterStructOrClass) { 2015 verifyFormat("class A {\n} a, b;"); 2016 verifyFormat("struct A {\n} a, b;"); 2017 verifyFormat("union A {\n} a;"); 2018 } 2019 2020 TEST_F(FormatTest, FormatsEnum) { 2021 verifyFormat("enum {\n" 2022 " Zero,\n" 2023 " One = 1,\n" 2024 " Two = One + 1,\n" 2025 " Three = (One + Two),\n" 2026 " Four = (Zero && (One ^ Two)) | (One << Two),\n" 2027 " Five = (One, Two, Three, Four, 5)\n" 2028 "};"); 2029 verifyGoogleFormat("enum {\n" 2030 " Zero,\n" 2031 " One = 1,\n" 2032 " Two = One + 1,\n" 2033 " Three = (One + Two),\n" 2034 " Four = (Zero && (One ^ Two)) | (One << Two),\n" 2035 " Five = (One, Two, Three, Four, 5)\n" 2036 "};"); 2037 verifyFormat("enum Enum {};"); 2038 verifyFormat("enum {};"); 2039 verifyFormat("enum X E {} d;"); 2040 verifyFormat("enum __attribute__((...)) E {} d;"); 2041 verifyFormat("enum __declspec__((...)) E {} d;"); 2042 verifyFormat("enum X f() {\n a();\n return 42;\n}"); 2043 verifyFormat("enum {\n" 2044 " Bar = Foo<int, int>::value\n" 2045 "};", 2046 getLLVMStyleWithColumns(30)); 2047 2048 verifyFormat("enum ShortEnum { A, B, C };"); 2049 verifyGoogleFormat("enum ShortEnum { A, B, C };"); 2050 2051 EXPECT_EQ("enum KeepEmptyLines {\n" 2052 " ONE,\n" 2053 "\n" 2054 " TWO,\n" 2055 "\n" 2056 " THREE\n" 2057 "}", 2058 format("enum KeepEmptyLines {\n" 2059 " ONE,\n" 2060 "\n" 2061 " TWO,\n" 2062 "\n" 2063 "\n" 2064 " THREE\n" 2065 "}")); 2066 verifyFormat("enum E { // comment\n" 2067 " ONE,\n" 2068 " TWO\n" 2069 "};\n" 2070 "int i;"); 2071 } 2072 2073 TEST_F(FormatTest, FormatsEnumsWithErrors) { 2074 verifyFormat("enum Type {\n" 2075 " One = 0; // These semicolons should be commas.\n" 2076 " Two = 1;\n" 2077 "};"); 2078 verifyFormat("namespace n {\n" 2079 "enum Type {\n" 2080 " One,\n" 2081 " Two, // missing };\n" 2082 " int i;\n" 2083 "}\n" 2084 "void g() {}"); 2085 } 2086 2087 TEST_F(FormatTest, FormatsEnumStruct) { 2088 verifyFormat("enum struct {\n" 2089 " Zero,\n" 2090 " One = 1,\n" 2091 " Two = One + 1,\n" 2092 " Three = (One + Two),\n" 2093 " Four = (Zero && (One ^ Two)) | (One << Two),\n" 2094 " Five = (One, Two, Three, Four, 5)\n" 2095 "};"); 2096 verifyFormat("enum struct Enum {};"); 2097 verifyFormat("enum struct {};"); 2098 verifyFormat("enum struct X E {} d;"); 2099 verifyFormat("enum struct __attribute__((...)) E {} d;"); 2100 verifyFormat("enum struct __declspec__((...)) E {} d;"); 2101 verifyFormat("enum struct X f() {\n a();\n return 42;\n}"); 2102 } 2103 2104 TEST_F(FormatTest, FormatsEnumClass) { 2105 verifyFormat("enum class {\n" 2106 " Zero,\n" 2107 " One = 1,\n" 2108 " Two = One + 1,\n" 2109 " Three = (One + Two),\n" 2110 " Four = (Zero && (One ^ Two)) | (One << Two),\n" 2111 " Five = (One, Two, Three, Four, 5)\n" 2112 "};"); 2113 verifyFormat("enum class Enum {};"); 2114 verifyFormat("enum class {};"); 2115 verifyFormat("enum class X E {} d;"); 2116 verifyFormat("enum class __attribute__((...)) E {} d;"); 2117 verifyFormat("enum class __declspec__((...)) E {} d;"); 2118 verifyFormat("enum class X f() {\n a();\n return 42;\n}"); 2119 } 2120 2121 TEST_F(FormatTest, FormatsEnumTypes) { 2122 verifyFormat("enum X : int {\n" 2123 " A, // Force multiple lines.\n" 2124 " B\n" 2125 "};"); 2126 verifyFormat("enum X : int { A, B };"); 2127 verifyFormat("enum X : std::uint32_t { A, B };"); 2128 } 2129 2130 TEST_F(FormatTest, FormatsNSEnums) { 2131 verifyGoogleFormat("typedef NS_ENUM(NSInteger, SomeName) { AAA, BBB }"); 2132 verifyGoogleFormat("typedef NS_ENUM(NSInteger, MyType) {\n" 2133 " // Information about someDecentlyLongValue.\n" 2134 " someDecentlyLongValue,\n" 2135 " // Information about anotherDecentlyLongValue.\n" 2136 " anotherDecentlyLongValue,\n" 2137 " // Information about aThirdDecentlyLongValue.\n" 2138 " aThirdDecentlyLongValue\n" 2139 "};"); 2140 verifyGoogleFormat("typedef NS_OPTIONS(NSInteger, MyType) {\n" 2141 " a = 1,\n" 2142 " b = 2,\n" 2143 " c = 3,\n" 2144 "};"); 2145 verifyGoogleFormat("typedef CF_ENUM(NSInteger, MyType) {\n" 2146 " a = 1,\n" 2147 " b = 2,\n" 2148 " c = 3,\n" 2149 "};"); 2150 verifyGoogleFormat("typedef CF_OPTIONS(NSInteger, MyType) {\n" 2151 " a = 1,\n" 2152 " b = 2,\n" 2153 " c = 3,\n" 2154 "};"); 2155 } 2156 2157 TEST_F(FormatTest, FormatsBitfields) { 2158 verifyFormat("struct Bitfields {\n" 2159 " unsigned sClass : 8;\n" 2160 " unsigned ValueKind : 2;\n" 2161 "};"); 2162 verifyFormat("struct A {\n" 2163 " int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa : 1,\n" 2164 " bbbbbbbbbbbbbbbbbbbbbbbbb;\n" 2165 "};"); 2166 verifyFormat("struct MyStruct {\n" 2167 " uchar data;\n" 2168 " uchar : 8;\n" 2169 " uchar : 8;\n" 2170 " uchar other;\n" 2171 "};"); 2172 } 2173 2174 TEST_F(FormatTest, FormatsNamespaces) { 2175 verifyFormat("namespace some_namespace {\n" 2176 "class A {};\n" 2177 "void f() { f(); }\n" 2178 "}"); 2179 verifyFormat("namespace {\n" 2180 "class A {};\n" 2181 "void f() { f(); }\n" 2182 "}"); 2183 verifyFormat("inline namespace X {\n" 2184 "class A {};\n" 2185 "void f() { f(); }\n" 2186 "}"); 2187 verifyFormat("using namespace some_namespace;\n" 2188 "class A {};\n" 2189 "void f() { f(); }"); 2190 2191 // This code is more common than we thought; if we 2192 // layout this correctly the semicolon will go into 2193 // its own line, which is undesirable. 2194 verifyFormat("namespace {};"); 2195 verifyFormat("namespace {\n" 2196 "class A {};\n" 2197 "};"); 2198 2199 verifyFormat("namespace {\n" 2200 "int SomeVariable = 0; // comment\n" 2201 "} // namespace"); 2202 EXPECT_EQ("#ifndef HEADER_GUARD\n" 2203 "#define HEADER_GUARD\n" 2204 "namespace my_namespace {\n" 2205 "int i;\n" 2206 "} // my_namespace\n" 2207 "#endif // HEADER_GUARD", 2208 format("#ifndef HEADER_GUARD\n" 2209 " #define HEADER_GUARD\n" 2210 " namespace my_namespace {\n" 2211 "int i;\n" 2212 "} // my_namespace\n" 2213 "#endif // HEADER_GUARD")); 2214 2215 FormatStyle Style = getLLVMStyle(); 2216 Style.NamespaceIndentation = FormatStyle::NI_All; 2217 EXPECT_EQ("namespace out {\n" 2218 " int i;\n" 2219 " namespace in {\n" 2220 " int i;\n" 2221 " } // namespace\n" 2222 "} // namespace", 2223 format("namespace out {\n" 2224 "int i;\n" 2225 "namespace in {\n" 2226 "int i;\n" 2227 "} // namespace\n" 2228 "} // namespace", 2229 Style)); 2230 2231 Style.NamespaceIndentation = FormatStyle::NI_Inner; 2232 EXPECT_EQ("namespace out {\n" 2233 "int i;\n" 2234 "namespace in {\n" 2235 " int i;\n" 2236 "} // namespace\n" 2237 "} // namespace", 2238 format("namespace out {\n" 2239 "int i;\n" 2240 "namespace in {\n" 2241 "int i;\n" 2242 "} // namespace\n" 2243 "} // namespace", 2244 Style)); 2245 } 2246 2247 TEST_F(FormatTest, FormatsExternC) { verifyFormat("extern \"C\" {\nint a;"); } 2248 2249 TEST_F(FormatTest, FormatsInlineASM) { 2250 verifyFormat("asm(\"xyz\" : \"=a\"(a), \"=d\"(b) : \"a\"(data));"); 2251 verifyFormat("asm(\"nop\" ::: \"memory\");"); 2252 verifyFormat( 2253 "asm(\"movq\\t%%rbx, %%rsi\\n\\t\"\n" 2254 " \"cpuid\\n\\t\"\n" 2255 " \"xchgq\\t%%rbx, %%rsi\\n\\t\"\n" 2256 " : \"=a\"(*rEAX), \"=S\"(*rEBX), \"=c\"(*rECX), \"=d\"(*rEDX)\n" 2257 " : \"a\"(value));"); 2258 EXPECT_EQ( 2259 "void NS_InvokeByIndex(void *that, unsigned int methodIndex) {\n" 2260 " __asm {\n" 2261 " mov edx,[that] // vtable in edx\n" 2262 " mov eax,methodIndex\n" 2263 " call [edx][eax*4] // stdcall\n" 2264 " }\n" 2265 "}", 2266 format("void NS_InvokeByIndex(void *that, unsigned int methodIndex) {\n" 2267 " __asm {\n" 2268 " mov edx,[that] // vtable in edx\n" 2269 " mov eax,methodIndex\n" 2270 " call [edx][eax*4] // stdcall\n" 2271 " }\n" 2272 "}")); 2273 verifyFormat("void function() {\n" 2274 " // comment\n" 2275 " asm(\"\");\n" 2276 "}"); 2277 } 2278 2279 TEST_F(FormatTest, FormatTryCatch) { 2280 verifyFormat("try {\n" 2281 " throw a * b;\n" 2282 "} catch (int a) {\n" 2283 " // Do nothing.\n" 2284 "} catch (...) {\n" 2285 " exit(42);\n" 2286 "}"); 2287 2288 // Function-level try statements. 2289 verifyFormat("int f() try { return 4; } catch (...) {\n" 2290 " return 5;\n" 2291 "}"); 2292 verifyFormat("class A {\n" 2293 " int a;\n" 2294 " A() try : a(0) {\n" 2295 " } catch (...) {\n" 2296 " throw;\n" 2297 " }\n" 2298 "};\n"); 2299 2300 // Incomplete try-catch blocks. 2301 verifyFormat("try {} catch ("); 2302 } 2303 2304 TEST_F(FormatTest, FormatSEHTryCatch) { 2305 verifyFormat("__try {\n" 2306 " int a = b * c;\n" 2307 "} __except (EXCEPTION_EXECUTE_HANDLER) {\n" 2308 " // Do nothing.\n" 2309 "}"); 2310 2311 verifyFormat("__try {\n" 2312 " int a = b * c;\n" 2313 "} __finally {\n" 2314 " // Do nothing.\n" 2315 "}"); 2316 2317 verifyFormat("DEBUG({\n" 2318 " __try {\n" 2319 " } __finally {\n" 2320 " }\n" 2321 "});\n"); 2322 } 2323 2324 TEST_F(FormatTest, IncompleteTryCatchBlocks) { 2325 verifyFormat("try {\n" 2326 " f();\n" 2327 "} catch {\n" 2328 " g();\n" 2329 "}"); 2330 verifyFormat("try {\n" 2331 " f();\n" 2332 "} catch (A a) MACRO(x) {\n" 2333 " g();\n" 2334 "} catch (B b) MACRO(x) {\n" 2335 " g();\n" 2336 "}"); 2337 } 2338 2339 TEST_F(FormatTest, FormatTryCatchBraceStyles) { 2340 FormatStyle Style = getLLVMStyle(); 2341 Style.BreakBeforeBraces = FormatStyle::BS_Attach; 2342 verifyFormat("try {\n" 2343 " // something\n" 2344 "} catch (...) {\n" 2345 " // something\n" 2346 "}", 2347 Style); 2348 Style.BreakBeforeBraces = FormatStyle::BS_Stroustrup; 2349 verifyFormat("try {\n" 2350 " // something\n" 2351 "}\n" 2352 "catch (...) {\n" 2353 " // something\n" 2354 "}", 2355 Style); 2356 verifyFormat("__try {\n" 2357 " // something\n" 2358 "}\n" 2359 "__finally {\n" 2360 " // something\n" 2361 "}", 2362 Style); 2363 verifyFormat("@try {\n" 2364 " // something\n" 2365 "}\n" 2366 "@finally {\n" 2367 " // something\n" 2368 "}", 2369 Style); 2370 Style.BreakBeforeBraces = FormatStyle::BS_Allman; 2371 verifyFormat("try\n" 2372 "{\n" 2373 " // something\n" 2374 "}\n" 2375 "catch (...)\n" 2376 "{\n" 2377 " // something\n" 2378 "}", 2379 Style); 2380 Style.BreakBeforeBraces = FormatStyle::BS_GNU; 2381 verifyFormat("try\n" 2382 " {\n" 2383 " // something\n" 2384 " }\n" 2385 "catch (...)\n" 2386 " {\n" 2387 " // something\n" 2388 " }", 2389 Style); 2390 } 2391 2392 TEST_F(FormatTest, FormatObjCTryCatch) { 2393 verifyFormat("@try {\n" 2394 " f();\n" 2395 "} @catch (NSException e) {\n" 2396 " @throw;\n" 2397 "} @finally {\n" 2398 " exit(42);\n" 2399 "}"); 2400 verifyFormat("DEBUG({\n" 2401 " @try {\n" 2402 " } @finally {\n" 2403 " }\n" 2404 "});\n"); 2405 } 2406 2407 TEST_F(FormatTest, StaticInitializers) { 2408 verifyFormat("static SomeClass SC = {1, 'a'};"); 2409 2410 verifyFormat("static SomeClass WithALoooooooooooooooooooongName = {\n" 2411 " 100000000, " 2412 "\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"};"); 2413 2414 // Here, everything other than the "}" would fit on a line. 2415 verifyFormat("static int LooooooooooooooooooooooooongVariable[1] = {\n" 2416 " 10000000000000000000000000};"); 2417 EXPECT_EQ("S s = {a,\n" 2418 "\n" 2419 " b};", 2420 format("S s = {\n" 2421 " a,\n" 2422 "\n" 2423 " b\n" 2424 "};")); 2425 2426 // FIXME: This would fit into the column limit if we'd fit "{ {" on the first 2427 // line. However, the formatting looks a bit off and this probably doesn't 2428 // happen often in practice. 2429 verifyFormat("static int Variable[1] = {\n" 2430 " {1000000000000000000000000000000000000}};", 2431 getLLVMStyleWithColumns(40)); 2432 } 2433 2434 TEST_F(FormatTest, DesignatedInitializers) { 2435 verifyFormat("const struct A a = {.a = 1, .b = 2};"); 2436 verifyFormat("const struct A a = {.aaaaaaaaaa = 1,\n" 2437 " .bbbbbbbbbb = 2,\n" 2438 " .cccccccccc = 3,\n" 2439 " .dddddddddd = 4,\n" 2440 " .eeeeeeeeee = 5};"); 2441 verifyFormat("const struct Aaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaa = {\n" 2442 " .aaaaaaaaaaaaaaaaaaaaaaaaaaa = 1,\n" 2443 " .bbbbbbbbbbbbbbbbbbbbbbbbbbb = 2,\n" 2444 " .ccccccccccccccccccccccccccc = 3,\n" 2445 " .ddddddddddddddddddddddddddd = 4,\n" 2446 " .eeeeeeeeeeeeeeeeeeeeeeeeeee = 5};"); 2447 2448 verifyGoogleFormat("const struct A a = {.a = 1, .b = 2};"); 2449 } 2450 2451 TEST_F(FormatTest, NestedStaticInitializers) { 2452 verifyFormat("static A x = {{{}}};\n"); 2453 verifyFormat("static A x = {{{init1, init2, init3, init4},\n" 2454 " {init1, init2, init3, init4}}};", 2455 getLLVMStyleWithColumns(50)); 2456 2457 verifyFormat("somes Status::global_reps[3] = {\n" 2458 " {kGlobalRef, OK_CODE, NULL, NULL, NULL},\n" 2459 " {kGlobalRef, CANCELLED_CODE, NULL, NULL, NULL},\n" 2460 " {kGlobalRef, UNKNOWN_CODE, NULL, NULL, NULL}};", 2461 getLLVMStyleWithColumns(60)); 2462 verifyGoogleFormat("SomeType Status::global_reps[3] = {\n" 2463 " {kGlobalRef, OK_CODE, NULL, NULL, NULL},\n" 2464 " {kGlobalRef, CANCELLED_CODE, NULL, NULL, NULL},\n" 2465 " {kGlobalRef, UNKNOWN_CODE, NULL, NULL, NULL}};"); 2466 verifyFormat("CGRect cg_rect = {{rect.fLeft, rect.fTop},\n" 2467 " {rect.fRight - rect.fLeft, rect.fBottom - " 2468 "rect.fTop}};"); 2469 2470 verifyFormat( 2471 "SomeArrayOfSomeType a = {\n" 2472 " {{1, 2, 3},\n" 2473 " {1, 2, 3},\n" 2474 " {111111111111111111111111111111, 222222222222222222222222222222,\n" 2475 " 333333333333333333333333333333},\n" 2476 " {1, 2, 3},\n" 2477 " {1, 2, 3}}};"); 2478 verifyFormat( 2479 "SomeArrayOfSomeType a = {\n" 2480 " {{1, 2, 3}},\n" 2481 " {{1, 2, 3}},\n" 2482 " {{111111111111111111111111111111, 222222222222222222222222222222,\n" 2483 " 333333333333333333333333333333}},\n" 2484 " {{1, 2, 3}},\n" 2485 " {{1, 2, 3}}};"); 2486 2487 verifyFormat("struct {\n" 2488 " unsigned bit;\n" 2489 " const char *const name;\n" 2490 "} kBitsToOs[] = {{kOsMac, \"Mac\"},\n" 2491 " {kOsWin, \"Windows\"},\n" 2492 " {kOsLinux, \"Linux\"},\n" 2493 " {kOsCrOS, \"Chrome OS\"}};"); 2494 verifyFormat("struct {\n" 2495 " unsigned bit;\n" 2496 " const char *const name;\n" 2497 "} kBitsToOs[] = {\n" 2498 " {kOsMac, \"Mac\"},\n" 2499 " {kOsWin, \"Windows\"},\n" 2500 " {kOsLinux, \"Linux\"},\n" 2501 " {kOsCrOS, \"Chrome OS\"},\n" 2502 "};"); 2503 } 2504 2505 TEST_F(FormatTest, FormatsSmallMacroDefinitionsInSingleLine) { 2506 verifyFormat("#define ALooooooooooooooooooooooooooooooooooooooongMacro(" 2507 " \\\n" 2508 " aLoooooooooooooooooooooooongFuuuuuuuuuuuuuunctiooooooooo)"); 2509 } 2510 2511 TEST_F(FormatTest, DoesNotBreakPureVirtualFunctionDefinition) { 2512 verifyFormat("virtual void write(ELFWriter *writerrr,\n" 2513 " OwningPtr<FileOutputBuffer> &buffer) = 0;"); 2514 2515 // Do break defaulted and deleted functions. 2516 verifyFormat("virtual void ~Deeeeeeeestructor() =\n" 2517 " default;", 2518 getLLVMStyleWithColumns(40)); 2519 verifyFormat("virtual void ~Deeeeeeeestructor() =\n" 2520 " delete;", 2521 getLLVMStyleWithColumns(40)); 2522 } 2523 2524 TEST_F(FormatTest, BreaksStringLiteralsOnlyInDefine) { 2525 verifyFormat("# 1111 \"/aaaaaaaaa/aaaaaaaaaaaaaaaaaaa/aaaaaaaa.cpp\" 2 3", 2526 getLLVMStyleWithColumns(40)); 2527 verifyFormat("#line 11111 \"/aaaaaaaaa/aaaaaaaaaaaaaaaaaaa/aaaaaaaa.cpp\"", 2528 getLLVMStyleWithColumns(40)); 2529 EXPECT_EQ("#define Q \\\n" 2530 " \"/aaaaaaaaa/aaaaaaaaaaaaaaaaaaa/\" \\\n" 2531 " \"aaaaaaaa.cpp\"", 2532 format("#define Q \"/aaaaaaaaa/aaaaaaaaaaaaaaaaaaa/aaaaaaaa.cpp\"", 2533 getLLVMStyleWithColumns(40))); 2534 } 2535 2536 TEST_F(FormatTest, UnderstandsLinePPDirective) { 2537 EXPECT_EQ("# 123 \"A string literal\"", 2538 format(" # 123 \"A string literal\"")); 2539 } 2540 2541 TEST_F(FormatTest, LayoutUnknownPPDirective) { 2542 EXPECT_EQ("#;", format("#;")); 2543 verifyFormat("#\n;\n;\n;"); 2544 } 2545 2546 TEST_F(FormatTest, UnescapedEndOfLineEndsPPDirective) { 2547 EXPECT_EQ("#line 42 \"test\"\n", 2548 format("# \\\n line \\\n 42 \\\n \"test\"\n")); 2549 EXPECT_EQ("#define A B\n", format("# \\\n define \\\n A \\\n B\n", 2550 getLLVMStyleWithColumns(12))); 2551 } 2552 2553 TEST_F(FormatTest, EndOfFileEndsPPDirective) { 2554 EXPECT_EQ("#line 42 \"test\"", 2555 format("# \\\n line \\\n 42 \\\n \"test\"")); 2556 EXPECT_EQ("#define A B", format("# \\\n define \\\n A \\\n B")); 2557 } 2558 2559 TEST_F(FormatTest, DoesntRemoveUnknownTokens) { 2560 verifyFormat("#define A \\x20"); 2561 verifyFormat("#define A \\ x20"); 2562 EXPECT_EQ("#define A \\ x20", format("#define A \\ x20")); 2563 verifyFormat("#define A ''"); 2564 verifyFormat("#define A ''qqq"); 2565 verifyFormat("#define A `qqq"); 2566 verifyFormat("f(\"aaaa, bbbb, \"\\\"ccccc\\\"\");"); 2567 EXPECT_EQ("const char *c = STRINGIFY(\n" 2568 "\\na : b);", 2569 format("const char * c = STRINGIFY(\n" 2570 "\\na : b);")); 2571 2572 verifyFormat("a\r\\"); 2573 verifyFormat("a\v\\"); 2574 verifyFormat("a\f\\"); 2575 } 2576 2577 TEST_F(FormatTest, IndentsPPDirectiveInReducedSpace) { 2578 verifyFormat("#define A(BB)", getLLVMStyleWithColumns(13)); 2579 verifyFormat("#define A( \\\n BB)", getLLVMStyleWithColumns(12)); 2580 verifyFormat("#define A( \\\n A, B)", getLLVMStyleWithColumns(12)); 2581 // FIXME: We never break before the macro name. 2582 verifyFormat("#define AA( \\\n B)", getLLVMStyleWithColumns(12)); 2583 2584 verifyFormat("#define A A\n#define A A"); 2585 verifyFormat("#define A(X) A\n#define A A"); 2586 2587 verifyFormat("#define Something Other", getLLVMStyleWithColumns(23)); 2588 verifyFormat("#define Something \\\n Other", getLLVMStyleWithColumns(22)); 2589 } 2590 2591 TEST_F(FormatTest, HandlePreprocessorDirectiveContext) { 2592 EXPECT_EQ("// somecomment\n" 2593 "#include \"a.h\"\n" 2594 "#define A( \\\n" 2595 " A, B)\n" 2596 "#include \"b.h\"\n" 2597 "// somecomment\n", 2598 format(" // somecomment\n" 2599 " #include \"a.h\"\n" 2600 "#define A(A,\\\n" 2601 " B)\n" 2602 " #include \"b.h\"\n" 2603 " // somecomment\n", 2604 getLLVMStyleWithColumns(13))); 2605 } 2606 2607 TEST_F(FormatTest, LayoutSingleHash) { EXPECT_EQ("#\na;", format("#\na;")); } 2608 2609 TEST_F(FormatTest, LayoutCodeInMacroDefinitions) { 2610 EXPECT_EQ("#define A \\\n" 2611 " c; \\\n" 2612 " e;\n" 2613 "f;", 2614 format("#define A c; e;\n" 2615 "f;", 2616 getLLVMStyleWithColumns(14))); 2617 } 2618 2619 TEST_F(FormatTest, LayoutRemainingTokens) { EXPECT_EQ("{}", format("{}")); } 2620 2621 TEST_F(FormatTest, AlwaysFormatsEntireMacroDefinitions) { 2622 EXPECT_EQ("int i;\n" 2623 "#define A \\\n" 2624 " int i; \\\n" 2625 " int j\n" 2626 "int k;", 2627 format("int i;\n" 2628 "#define A \\\n" 2629 " int i ; \\\n" 2630 " int j\n" 2631 "int k;", 2632 8, 0, getGoogleStyle())); // 8: position of "#define". 2633 EXPECT_EQ("int i;\n" 2634 "#define A \\\n" 2635 " int i; \\\n" 2636 " int j\n" 2637 "int k;", 2638 format("int i;\n" 2639 "#define A \\\n" 2640 " int i ; \\\n" 2641 " int j\n" 2642 "int k;", 2643 45, 0, getGoogleStyle())); // 45: position of "j". 2644 } 2645 2646 TEST_F(FormatTest, MacroDefinitionInsideStatement) { 2647 EXPECT_EQ("int x,\n" 2648 "#define A\n" 2649 " y;", 2650 format("int x,\n#define A\ny;")); 2651 } 2652 2653 TEST_F(FormatTest, HashInMacroDefinition) { 2654 EXPECT_EQ("#define A(c) L#c", format("#define A(c) L#c", getLLVMStyle())); 2655 verifyFormat("#define A \\\n b #c;", getLLVMStyleWithColumns(11)); 2656 verifyFormat("#define A \\\n" 2657 " { \\\n" 2658 " f(#c); \\\n" 2659 " }", 2660 getLLVMStyleWithColumns(11)); 2661 2662 verifyFormat("#define A(X) \\\n" 2663 " void function##X()", 2664 getLLVMStyleWithColumns(22)); 2665 2666 verifyFormat("#define A(a, b, c) \\\n" 2667 " void a##b##c()", 2668 getLLVMStyleWithColumns(22)); 2669 2670 verifyFormat("#define A void # ## #", getLLVMStyleWithColumns(22)); 2671 } 2672 2673 TEST_F(FormatTest, RespectWhitespaceInMacroDefinitions) { 2674 EXPECT_EQ("#define A (x)", format("#define A (x)")); 2675 EXPECT_EQ("#define A(x)", format("#define A(x)")); 2676 } 2677 2678 TEST_F(FormatTest, EmptyLinesInMacroDefinitions) { 2679 EXPECT_EQ("#define A b;", format("#define A \\\n" 2680 " \\\n" 2681 " b;", 2682 getLLVMStyleWithColumns(25))); 2683 EXPECT_EQ("#define A \\\n" 2684 " \\\n" 2685 " a; \\\n" 2686 " b;", 2687 format("#define A \\\n" 2688 " \\\n" 2689 " a; \\\n" 2690 " b;", 2691 getLLVMStyleWithColumns(11))); 2692 EXPECT_EQ("#define A \\\n" 2693 " a; \\\n" 2694 " \\\n" 2695 " b;", 2696 format("#define A \\\n" 2697 " a; \\\n" 2698 " \\\n" 2699 " b;", 2700 getLLVMStyleWithColumns(11))); 2701 } 2702 2703 TEST_F(FormatTest, MacroDefinitionsWithIncompleteCode) { 2704 verifyFormat("#define A :"); 2705 verifyFormat("#define SOMECASES \\\n" 2706 " case 1: \\\n" 2707 " case 2\n", 2708 getLLVMStyleWithColumns(20)); 2709 verifyFormat("#define A template <typename T>"); 2710 verifyFormat("#define STR(x) #x\n" 2711 "f(STR(this_is_a_string_literal{));"); 2712 verifyFormat("#pragma omp threadprivate( \\\n" 2713 " y)), // expected-warning", 2714 getLLVMStyleWithColumns(28)); 2715 verifyFormat("#d, = };"); 2716 verifyFormat("#if \"a"); 2717 verifyFormat("({\n" 2718 "#define b }\\\n" 2719 " a\n" 2720 "a"); 2721 verifyFormat("#define A \\\n" 2722 " { \\\n" 2723 " {\n" 2724 "#define B \\\n" 2725 " } \\\n" 2726 " }", 2727 getLLVMStyleWithColumns(15)); 2728 2729 verifyNoCrash("#if a\na(\n#else\n#endif\n{a"); 2730 verifyNoCrash("a={0,1\n#if a\n#else\n;\n#endif\n}"); 2731 verifyNoCrash("#if a\na(\n#else\n#endif\n) a {a,b,c,d,f,g};"); 2732 verifyNoCrash("#ifdef A\n a(\n #else\n #endif\n) = []() { \n)}"); 2733 } 2734 2735 TEST_F(FormatTest, MacrosWithoutTrailingSemicolon) { 2736 verifyFormat("SOME_TYPE_NAME abc;"); // Gated on the newline. 2737 EXPECT_EQ("class A : public QObject {\n" 2738 " Q_OBJECT\n" 2739 "\n" 2740 " A() {}\n" 2741 "};", 2742 format("class A : public QObject {\n" 2743 " Q_OBJECT\n" 2744 "\n" 2745 " A() {\n}\n" 2746 "} ;")); 2747 EXPECT_EQ("SOME_MACRO\n" 2748 "namespace {\n" 2749 "void f();\n" 2750 "}", 2751 format("SOME_MACRO\n" 2752 " namespace {\n" 2753 "void f( );\n" 2754 "}")); 2755 // Only if the identifier contains at least 5 characters. 2756 EXPECT_EQ("HTTP f();", format("HTTP\nf();")); 2757 EXPECT_EQ("MACRO\nf();", format("MACRO\nf();")); 2758 // Only if everything is upper case. 2759 EXPECT_EQ("class A : public QObject {\n" 2760 " Q_Object A() {}\n" 2761 "};", 2762 format("class A : public QObject {\n" 2763 " Q_Object\n" 2764 " A() {\n}\n" 2765 "} ;")); 2766 2767 // Only if the next line can actually start an unwrapped line. 2768 EXPECT_EQ("SOME_WEIRD_LOG_MACRO << SomeThing;", 2769 format("SOME_WEIRD_LOG_MACRO\n" 2770 "<< SomeThing;")); 2771 2772 verifyFormat("VISIT_GL_CALL(GenBuffers, void, (GLsizei n, GLuint* buffers), " 2773 "(n, buffers))\n", 2774 getChromiumStyle(FormatStyle::LK_Cpp)); 2775 } 2776 2777 TEST_F(FormatTest, MacroCallsWithoutTrailingSemicolon) { 2778 EXPECT_EQ("INITIALIZE_PASS_BEGIN(ScopDetection, \"polly-detect\")\n" 2779 "INITIALIZE_AG_DEPENDENCY(AliasAnalysis)\n" 2780 "INITIALIZE_PASS_DEPENDENCY(DominatorTree)\n" 2781 "class X {};\n" 2782 "INITIALIZE_PASS_END(ScopDetection, \"polly-detect\")\n" 2783 "int *createScopDetectionPass() { return 0; }", 2784 format(" INITIALIZE_PASS_BEGIN(ScopDetection, \"polly-detect\")\n" 2785 " INITIALIZE_AG_DEPENDENCY(AliasAnalysis)\n" 2786 " INITIALIZE_PASS_DEPENDENCY(DominatorTree)\n" 2787 " class X {};\n" 2788 " INITIALIZE_PASS_END(ScopDetection, \"polly-detect\")\n" 2789 " int *createScopDetectionPass() { return 0; }")); 2790 // FIXME: We could probably treat IPC_BEGIN_MESSAGE_MAP/IPC_END_MESSAGE_MAP as 2791 // braces, so that inner block is indented one level more. 2792 EXPECT_EQ("int q() {\n" 2793 " IPC_BEGIN_MESSAGE_MAP(WebKitTestController, message)\n" 2794 " IPC_MESSAGE_HANDLER(xxx, qqq)\n" 2795 " IPC_END_MESSAGE_MAP()\n" 2796 "}", 2797 format("int q() {\n" 2798 " IPC_BEGIN_MESSAGE_MAP(WebKitTestController, message)\n" 2799 " IPC_MESSAGE_HANDLER(xxx, qqq)\n" 2800 " IPC_END_MESSAGE_MAP()\n" 2801 "}")); 2802 2803 // Same inside macros. 2804 EXPECT_EQ("#define LIST(L) \\\n" 2805 " L(A) \\\n" 2806 " L(B) \\\n" 2807 " L(C)", 2808 format("#define LIST(L) \\\n" 2809 " L(A) \\\n" 2810 " L(B) \\\n" 2811 " L(C)", 2812 getGoogleStyle())); 2813 2814 // These must not be recognized as macros. 2815 EXPECT_EQ("int q() {\n" 2816 " f(x);\n" 2817 " f(x) {}\n" 2818 " f(x)->g();\n" 2819 " f(x)->*g();\n" 2820 " f(x).g();\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) >>= x;\n" 2831 " f(x) <<= x;\n" 2832 " f(x)[y].z();\n" 2833 " LOG(INFO) << x;\n" 2834 " ifstream(x) >> x;\n" 2835 "}\n", 2836 format("int q() {\n" 2837 " f(x)\n;\n" 2838 " f(x)\n {}\n" 2839 " f(x)\n->g();\n" 2840 " f(x)\n->*g();\n" 2841 " f(x)\n.g();\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 >>= x;\n" 2852 " f(x)\n <<= x;\n" 2853 " f(x)\n[y].z();\n" 2854 " LOG(INFO)\n << x;\n" 2855 " ifstream(x)\n >> x;\n" 2856 "}\n")); 2857 EXPECT_EQ("int q() {\n" 2858 " F(x)\n" 2859 " if (1) {\n" 2860 " }\n" 2861 " F(x)\n" 2862 " while (1) {\n" 2863 " }\n" 2864 " F(x)\n" 2865 " G(x);\n" 2866 " F(x)\n" 2867 " try {\n" 2868 " Q();\n" 2869 " } catch (...) {\n" 2870 " }\n" 2871 "}\n", 2872 format("int q() {\n" 2873 "F(x)\n" 2874 "if (1) {}\n" 2875 "F(x)\n" 2876 "while (1) {}\n" 2877 "F(x)\n" 2878 "G(x);\n" 2879 "F(x)\n" 2880 "try { Q(); } catch (...) {}\n" 2881 "}\n")); 2882 EXPECT_EQ("class A {\n" 2883 " A() : t(0) {}\n" 2884 " A(int i) noexcept() : {}\n" 2885 " A(X x)\n" // FIXME: function-level try blocks are broken. 2886 " try : t(0) {\n" 2887 " } catch (...) {\n" 2888 " }\n" 2889 "};", 2890 format("class A {\n" 2891 " A()\n : t(0) {}\n" 2892 " A(int i)\n noexcept() : {}\n" 2893 " A(X x)\n" 2894 " try : t(0) {} catch (...) {}\n" 2895 "};")); 2896 EXPECT_EQ("class SomeClass {\n" 2897 "public:\n" 2898 " SomeClass() EXCLUSIVE_LOCK_FUNCTION(mu_);\n" 2899 "};", 2900 format("class SomeClass {\n" 2901 "public:\n" 2902 " SomeClass()\n" 2903 " EXCLUSIVE_LOCK_FUNCTION(mu_);\n" 2904 "};")); 2905 EXPECT_EQ("class SomeClass {\n" 2906 "public:\n" 2907 " SomeClass()\n" 2908 " EXCLUSIVE_LOCK_FUNCTION(mu_);\n" 2909 "};", 2910 format("class SomeClass {\n" 2911 "public:\n" 2912 " SomeClass()\n" 2913 " EXCLUSIVE_LOCK_FUNCTION(mu_);\n" 2914 "};", 2915 getLLVMStyleWithColumns(40))); 2916 } 2917 2918 TEST_F(FormatTest, LayoutMacroDefinitionsStatementsSpanningBlocks) { 2919 verifyFormat("#define A \\\n" 2920 " f({ \\\n" 2921 " g(); \\\n" 2922 " });", 2923 getLLVMStyleWithColumns(11)); 2924 } 2925 2926 TEST_F(FormatTest, IndentPreprocessorDirectivesAtZero) { 2927 EXPECT_EQ("{\n {\n#define A\n }\n}", format("{{\n#define A\n}}")); 2928 } 2929 2930 TEST_F(FormatTest, FormatHashIfNotAtStartOfLine) { 2931 verifyFormat("{\n { a #c; }\n}"); 2932 } 2933 2934 TEST_F(FormatTest, FormatUnbalancedStructuralElements) { 2935 EXPECT_EQ("#define A \\\n { \\\n {\nint i;", 2936 format("#define A { {\nint i;", getLLVMStyleWithColumns(11))); 2937 EXPECT_EQ("#define A \\\n } \\\n }\nint i;", 2938 format("#define A } }\nint i;", getLLVMStyleWithColumns(11))); 2939 } 2940 2941 TEST_F(FormatTest, EscapedNewlineAtStartOfToken) { 2942 EXPECT_EQ( 2943 "#define A \\\n int i; \\\n int j;", 2944 format("#define A \\\nint i;\\\n int j;", getLLVMStyleWithColumns(11))); 2945 EXPECT_EQ("template <class T> f();", format("\\\ntemplate <class T> f();")); 2946 } 2947 2948 TEST_F(FormatTest, NoEscapedNewlineHandlingInBlockComments) { 2949 EXPECT_EQ("/* \\ \\ \\\n*/", format("\\\n/* \\ \\ \\\n*/")); 2950 } 2951 2952 TEST_F(FormatTest, DontCrashOnBlockComments) { 2953 EXPECT_EQ( 2954 "int xxxxxxxxx; /* " 2955 "yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy\n" 2956 "zzzzzz\n" 2957 "0*/", 2958 format("int xxxxxxxxx; /* " 2959 "yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy zzzzzz\n" 2960 "0*/")); 2961 } 2962 2963 TEST_F(FormatTest, CalculateSpaceOnConsecutiveLinesInMacro) { 2964 verifyFormat("#define A \\\n" 2965 " int v( \\\n" 2966 " a); \\\n" 2967 " int i;", 2968 getLLVMStyleWithColumns(11)); 2969 } 2970 2971 TEST_F(FormatTest, MixingPreprocessorDirectivesAndNormalCode) { 2972 EXPECT_EQ( 2973 "#define ALooooooooooooooooooooooooooooooooooooooongMacro(" 2974 " \\\n" 2975 " aLoooooooooooooooooooooooongFuuuuuuuuuuuuuunctiooooooooo)\n" 2976 "\n" 2977 "AlooooooooooooooooooooooooooooooooooooooongCaaaaaaaaaal(\n" 2978 " aLooooooooooooooooooooooonPaaaaaaaaaaaaaaaaaaaaarmmmm);\n", 2979 format(" #define ALooooooooooooooooooooooooooooooooooooooongMacro(" 2980 "\\\n" 2981 "aLoooooooooooooooooooooooongFuuuuuuuuuuuuuunctiooooooooo)\n" 2982 " \n" 2983 " AlooooooooooooooooooooooooooooooooooooooongCaaaaaaaaaal(\n" 2984 " aLooooooooooooooooooooooonPaaaaaaaaaaaaaaaaaaaaarmmmm);\n")); 2985 } 2986 2987 TEST_F(FormatTest, LayoutStatementsAroundPreprocessorDirectives) { 2988 EXPECT_EQ("int\n" 2989 "#define A\n" 2990 " a;", 2991 format("int\n#define A\na;")); 2992 verifyFormat("functionCallTo(\n" 2993 " someOtherFunction(\n" 2994 " withSomeParameters, whichInSequence,\n" 2995 " areLongerThanALine(andAnotherCall,\n" 2996 "#define A B\n" 2997 " withMoreParamters,\n" 2998 " whichStronglyInfluenceTheLayout),\n" 2999 " andMoreParameters),\n" 3000 " trailing);", 3001 getLLVMStyleWithColumns(69)); 3002 verifyFormat("Foo::Foo()\n" 3003 "#ifdef BAR\n" 3004 " : baz(0)\n" 3005 "#endif\n" 3006 "{\n" 3007 "}"); 3008 verifyFormat("void f() {\n" 3009 " if (true)\n" 3010 "#ifdef A\n" 3011 " f(42);\n" 3012 " x();\n" 3013 "#else\n" 3014 " g();\n" 3015 " x();\n" 3016 "#endif\n" 3017 "}"); 3018 verifyFormat("void f(param1, param2,\n" 3019 " param3,\n" 3020 "#ifdef A\n" 3021 " param4(param5,\n" 3022 "#ifdef A1\n" 3023 " param6,\n" 3024 "#ifdef A2\n" 3025 " param7),\n" 3026 "#else\n" 3027 " param8),\n" 3028 " param9,\n" 3029 "#endif\n" 3030 " param10,\n" 3031 "#endif\n" 3032 " param11)\n" 3033 "#else\n" 3034 " param12)\n" 3035 "#endif\n" 3036 "{\n" 3037 " x();\n" 3038 "}", 3039 getLLVMStyleWithColumns(28)); 3040 verifyFormat("#if 1\n" 3041 "int i;"); 3042 verifyFormat("#if 1\n" 3043 "#endif\n" 3044 "#if 1\n" 3045 "#else\n" 3046 "#endif\n"); 3047 verifyFormat("DEBUG({\n" 3048 " return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3049 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;\n" 3050 "});\n" 3051 "#if a\n" 3052 "#else\n" 3053 "#endif"); 3054 3055 verifyFormat("void f(\n" 3056 "#if A\n" 3057 " );\n" 3058 "#else\n" 3059 "#endif"); 3060 } 3061 3062 TEST_F(FormatTest, GraciouslyHandleIncorrectPreprocessorConditions) { 3063 verifyFormat("#endif\n" 3064 "#if B"); 3065 } 3066 3067 TEST_F(FormatTest, FormatsJoinedLinesOnSubsequentRuns) { 3068 FormatStyle SingleLine = getLLVMStyle(); 3069 SingleLine.AllowShortIfStatementsOnASingleLine = true; 3070 verifyFormat("#if 0\n" 3071 "#elif 1\n" 3072 "#endif\n" 3073 "void foo() {\n" 3074 " if (test) foo2();\n" 3075 "}", 3076 SingleLine); 3077 } 3078 3079 TEST_F(FormatTest, LayoutBlockInsideParens) { 3080 verifyFormat("functionCall({ int i; });"); 3081 verifyFormat("functionCall({\n" 3082 " int i;\n" 3083 " int j;\n" 3084 "});"); 3085 verifyFormat("functionCall({\n" 3086 " int i;\n" 3087 " int j;\n" 3088 "}, aaaa, bbbb, cccc);"); 3089 verifyFormat("functionA(functionB({\n" 3090 " int i;\n" 3091 " int j;\n" 3092 " }),\n" 3093 " aaaa, bbbb, cccc);"); 3094 verifyFormat("functionCall(\n" 3095 " {\n" 3096 " int i;\n" 3097 " int j;\n" 3098 " },\n" 3099 " aaaa, bbbb, // comment\n" 3100 " cccc);"); 3101 verifyFormat("functionA(functionB({\n" 3102 " int i;\n" 3103 " int j;\n" 3104 " }),\n" 3105 " aaaa, bbbb, // comment\n" 3106 " cccc);"); 3107 verifyFormat("functionCall(aaaa, bbbb, { int i; });"); 3108 verifyFormat("functionCall(aaaa, bbbb, {\n" 3109 " int i;\n" 3110 " int j;\n" 3111 "});"); 3112 verifyFormat( 3113 "Aaa(\n" // FIXME: There shouldn't be a linebreak here. 3114 " {\n" 3115 " int i; // break\n" 3116 " },\n" 3117 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb,\n" 3118 " ccccccccccccccccc));"); 3119 verifyFormat("DEBUG({\n" 3120 " if (a)\n" 3121 " f();\n" 3122 "});"); 3123 } 3124 3125 TEST_F(FormatTest, LayoutBlockInsideStatement) { 3126 EXPECT_EQ("SOME_MACRO { int i; }\n" 3127 "int i;", 3128 format(" SOME_MACRO {int i;} int i;")); 3129 } 3130 3131 TEST_F(FormatTest, LayoutNestedBlocks) { 3132 verifyFormat("void AddOsStrings(unsigned bitmask) {\n" 3133 " struct s {\n" 3134 " int i;\n" 3135 " };\n" 3136 " s kBitsToOs[] = {{10}};\n" 3137 " for (int i = 0; i < 10; ++i)\n" 3138 " return;\n" 3139 "}"); 3140 verifyFormat("call(parameter, {\n" 3141 " something();\n" 3142 " // Comment using all columns.\n" 3143 " somethingelse();\n" 3144 "});", 3145 getLLVMStyleWithColumns(40)); 3146 verifyFormat("DEBUG( //\n" 3147 " { f(); }, a);"); 3148 verifyFormat("DEBUG( //\n" 3149 " {\n" 3150 " f(); //\n" 3151 " },\n" 3152 " a);"); 3153 3154 EXPECT_EQ("call(parameter, {\n" 3155 " something();\n" 3156 " // Comment too\n" 3157 " // looooooooooong.\n" 3158 " somethingElse();\n" 3159 "});", 3160 format("call(parameter, {\n" 3161 " something();\n" 3162 " // Comment too looooooooooong.\n" 3163 " somethingElse();\n" 3164 "});", 3165 getLLVMStyleWithColumns(29))); 3166 EXPECT_EQ("DEBUG({ int i; });", format("DEBUG({ int i; });")); 3167 EXPECT_EQ("DEBUG({ // comment\n" 3168 " int i;\n" 3169 "});", 3170 format("DEBUG({ // comment\n" 3171 "int i;\n" 3172 "});")); 3173 EXPECT_EQ("DEBUG({\n" 3174 " int i;\n" 3175 "\n" 3176 " // comment\n" 3177 " int j;\n" 3178 "});", 3179 format("DEBUG({\n" 3180 " int i;\n" 3181 "\n" 3182 " // comment\n" 3183 " int j;\n" 3184 "});")); 3185 3186 verifyFormat("DEBUG({\n" 3187 " if (a)\n" 3188 " return;\n" 3189 "});"); 3190 verifyGoogleFormat("DEBUG({\n" 3191 " if (a) return;\n" 3192 "});"); 3193 FormatStyle Style = getGoogleStyle(); 3194 Style.ColumnLimit = 45; 3195 verifyFormat("Debug(aaaaa, {\n" 3196 " if (aaaaaaaaaaaaaaaaaaaaaaaa) return;\n" 3197 "}, a);", 3198 Style); 3199 3200 verifyNoCrash("^{v^{a}}"); 3201 } 3202 3203 TEST_F(FormatTest, IndividualStatementsOfNestedBlocks) { 3204 EXPECT_EQ("DEBUG({\n" 3205 " int i;\n" 3206 " int j;\n" 3207 "});", 3208 format("DEBUG( {\n" 3209 " int i;\n" 3210 " int j;\n" 3211 "} ) ;", 3212 20, 1, getLLVMStyle())); 3213 EXPECT_EQ("DEBUG( {\n" 3214 " int i;\n" 3215 " int j;\n" 3216 "} ) ;", 3217 format("DEBUG( {\n" 3218 " int i;\n" 3219 " int j;\n" 3220 "} ) ;", 3221 41, 1, getLLVMStyle())); 3222 EXPECT_EQ("DEBUG( {\n" 3223 " int i;\n" 3224 " int j;\n" 3225 "} ) ;", 3226 format("DEBUG( {\n" 3227 " int i;\n" 3228 " int j;\n" 3229 "} ) ;", 3230 41, 1, getLLVMStyle())); 3231 EXPECT_EQ("DEBUG({\n" 3232 " int i;\n" 3233 " int j;\n" 3234 "});", 3235 format("DEBUG( {\n" 3236 " int i;\n" 3237 " int j;\n" 3238 "} ) ;", 3239 20, 1, getLLVMStyle())); 3240 3241 EXPECT_EQ("Debug({\n" 3242 " if (aaaaaaaaaaaaaaaaaaaaaaaa)\n" 3243 " return;\n" 3244 " },\n" 3245 " a);", 3246 format("Debug({\n" 3247 " if (aaaaaaaaaaaaaaaaaaaaaaaa)\n" 3248 " return;\n" 3249 " },\n" 3250 " a);", 3251 50, 1, getLLVMStyle())); 3252 EXPECT_EQ("DEBUG({\n" 3253 " DEBUG({\n" 3254 " int a;\n" 3255 " int b;\n" 3256 " }) ;\n" 3257 "});", 3258 format("DEBUG({\n" 3259 " DEBUG({\n" 3260 " int a;\n" 3261 " int b;\n" // Format this line only. 3262 " }) ;\n" // Don't touch this line. 3263 "});", 3264 35, 0, getLLVMStyle())); 3265 EXPECT_EQ("DEBUG({\n" 3266 " int a; //\n" 3267 "});", 3268 format("DEBUG({\n" 3269 " int a; //\n" 3270 "});", 3271 0, 0, getLLVMStyle())); 3272 EXPECT_EQ("someFunction(\n" 3273 " [] {\n" 3274 " // Only with this comment.\n" 3275 " int i; // invoke formatting here.\n" 3276 " }, // force line break\n" 3277 " aaa);", 3278 format("someFunction(\n" 3279 " [] {\n" 3280 " // Only with this comment.\n" 3281 " int i; // invoke formatting here.\n" 3282 " }, // force line break\n" 3283 " aaa);", 3284 63, 1, getLLVMStyle())); 3285 } 3286 3287 TEST_F(FormatTest, PutEmptyBlocksIntoOneLine) { 3288 EXPECT_EQ("{}", format("{}")); 3289 verifyFormat("enum E {};"); 3290 verifyFormat("enum E {}"); 3291 } 3292 3293 //===----------------------------------------------------------------------===// 3294 // Line break tests. 3295 //===----------------------------------------------------------------------===// 3296 3297 TEST_F(FormatTest, PreventConfusingIndents) { 3298 verifyFormat( 3299 "void f() {\n" 3300 " SomeLongMethodName(SomeReallyLongMethod(CallOtherReallyLongMethod(\n" 3301 " parameter, parameter, parameter)),\n" 3302 " SecondLongCall(parameter));\n" 3303 "}"); 3304 verifyFormat( 3305 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3306 " aaaaaaaaaaaaaaaaaaaaaaaa(\n" 3307 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 3308 " aaaaaaaaaaaaaaaaaaaaaaaa);"); 3309 verifyFormat( 3310 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3311 " [aaaaaaaaaaaaaaaaaaaaaaaa\n" 3312 " [aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa]\n" 3313 " [aaaaaaaaaaaaaaaaaaaaaaaa]];"); 3314 verifyFormat( 3315 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa<\n" 3316 " aaaaaaaaaaaaaaaaaaaaaaaa<\n" 3317 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>,\n" 3318 " aaaaaaaaaaaaaaaaaaaaaaaa>;"); 3319 verifyFormat("int a = bbbb && ccc && fffff(\n" 3320 "#define A Just forcing a new line\n" 3321 " ddd);"); 3322 } 3323 3324 TEST_F(FormatTest, LineBreakingInBinaryExpressions) { 3325 verifyFormat( 3326 "bool aaaaaaa =\n" 3327 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaa).aaaaaaaaaaaaaaaaaaa() ||\n" 3328 " bbbbbbbb();"); 3329 verifyFormat( 3330 "bool aaaaaaa =\n" 3331 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaa).aaaaaaaaaaaaaaaaaaa() or\n" 3332 " bbbbbbbb();"); 3333 3334 verifyFormat("bool aaaaaaaaaaaaaaaaaaaaa =\n" 3335 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa != bbbbbbbbbbbbbbbbbb &&\n" 3336 " ccccccccc == ddddddddddd;"); 3337 verifyFormat("bool aaaaaaaaaaaaaaaaaaaaa =\n" 3338 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa != bbbbbbbbbbbbbbbbbb and\n" 3339 " ccccccccc == ddddddddddd;"); 3340 verifyFormat( 3341 "bool aaaaaaaaaaaaaaaaaaaaa =\n" 3342 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa not_eq bbbbbbbbbbbbbbbbbb and\n" 3343 " ccccccccc == ddddddddddd;"); 3344 3345 verifyFormat("aaaaaa = aaaaaaa(aaaaaaa, // break\n" 3346 " aaaaaa) &&\n" 3347 " bbbbbb && cccccc;"); 3348 verifyFormat("aaaaaa = aaaaaaa(aaaaaaa, // break\n" 3349 " aaaaaa) >>\n" 3350 " bbbbbb;"); 3351 verifyFormat("Whitespaces.addUntouchableComment(\n" 3352 " SourceMgr.getSpellingColumnNumber(\n" 3353 " TheLine.Last->FormatTok.Tok.getLocation()) -\n" 3354 " 1);"); 3355 3356 verifyFormat("if ((aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 3357 " bbbbbbbbbbbbbbbbbb) && // aaaaaaaaaaaaaaaa\n" 3358 " cccccc) {\n}"); 3359 verifyFormat("b = a &&\n" 3360 " // Comment\n" 3361 " b.c && d;"); 3362 3363 // If the LHS of a comparison is not a binary expression itself, the 3364 // additional linebreak confuses many people. 3365 verifyFormat( 3366 "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3367 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) > 5) {\n" 3368 "}"); 3369 verifyFormat( 3370 "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3371 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) == 5) {\n" 3372 "}"); 3373 verifyFormat( 3374 "if (aaaaaaaaaaaaaaaaaaaaaaaaaa.aaaaaaaaaaaaaaaaaaaaaa(\n" 3375 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) == 5) {\n" 3376 "}"); 3377 // Even explicit parentheses stress the precedence enough to make the 3378 // additional break unnecessary. 3379 verifyFormat("if ((aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3380 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) == 5) {\n" 3381 "}"); 3382 // This cases is borderline, but with the indentation it is still readable. 3383 verifyFormat( 3384 "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3385 " aaaaaaaaaaaaaaa) > aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3386 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n" 3387 "}", 3388 getLLVMStyleWithColumns(75)); 3389 3390 // If the LHS is a binary expression, we should still use the additional break 3391 // as otherwise the formatting hides the operator precedence. 3392 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3393 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n" 3394 " 5) {\n" 3395 "}"); 3396 3397 FormatStyle OnePerLine = getLLVMStyle(); 3398 OnePerLine.BinPackParameters = false; 3399 verifyFormat( 3400 "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 3401 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 3402 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}", 3403 OnePerLine); 3404 } 3405 3406 TEST_F(FormatTest, ExpressionIndentation) { 3407 verifyFormat("bool value = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3408 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3409 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n" 3410 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n" 3411 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb +\n" 3412 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb &&\n" 3413 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n" 3414 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa >\n" 3415 " ccccccccccccccccccccccccccccccccccccccccc;"); 3416 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n" 3417 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3418 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n" 3419 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}"); 3420 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3421 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n" 3422 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n" 3423 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}"); 3424 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n" 3425 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n" 3426 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3427 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}"); 3428 verifyFormat("if () {\n" 3429 "} else if (aaaaa &&\n" 3430 " bbbbb > // break\n" 3431 " ccccc) {\n" 3432 "}"); 3433 3434 // Presence of a trailing comment used to change indentation of b. 3435 verifyFormat("return aaaaaaaaaaaaaaaaaaa +\n" 3436 " b;\n" 3437 "return aaaaaaaaaaaaaaaaaaa +\n" 3438 " b; //", 3439 getLLVMStyleWithColumns(30)); 3440 } 3441 3442 TEST_F(FormatTest, ExpressionIndentationBreakingBeforeOperators) { 3443 // Not sure what the best system is here. Like this, the LHS can be found 3444 // immediately above an operator (everything with the same or a higher 3445 // indent). The RHS is aligned right of the operator and so compasses 3446 // everything until something with the same indent as the operator is found. 3447 // FIXME: Is this a good system? 3448 FormatStyle Style = getLLVMStyle(); 3449 Style.BreakBeforeBinaryOperators = FormatStyle::BOS_All; 3450 verifyFormat( 3451 "bool value = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3452 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3453 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3454 " == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3455 " * bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3456 " + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3457 " && aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3458 " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3459 " > ccccccccccccccccccccccccccccccccccccccccc;", 3460 Style); 3461 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3462 " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3463 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3464 " == bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}", 3465 Style); 3466 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3467 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3468 " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3469 " == bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}", 3470 Style); 3471 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3472 " == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3473 " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3474 " + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}", 3475 Style); 3476 verifyFormat("if () {\n" 3477 "} else if (aaaaa\n" 3478 " && bbbbb // break\n" 3479 " > ccccc) {\n" 3480 "}", 3481 Style); 3482 verifyFormat("return (a)\n" 3483 " // comment\n" 3484 " + b;", 3485 Style); 3486 verifyFormat( 3487 "int aaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3488 " * bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3489 " + cc;", 3490 Style); 3491 3492 // Forced by comments. 3493 verifyFormat( 3494 "unsigned ContentSize =\n" 3495 " sizeof(int16_t) // DWARF ARange version number\n" 3496 " + sizeof(int32_t) // Offset of CU in the .debug_info section\n" 3497 " + sizeof(int8_t) // Pointer Size (in bytes)\n" 3498 " + sizeof(int8_t); // Segment Size (in bytes)"); 3499 3500 verifyFormat("return boost::fusion::at_c<0>(iiii).second\n" 3501 " == boost::fusion::at_c<1>(iiii).second;", 3502 Style); 3503 3504 Style.ColumnLimit = 60; 3505 verifyFormat("zzzzzzzzzz\n" 3506 " = bbbbbbbbbbbbbbbbb\n" 3507 " >> aaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaa);", 3508 Style); 3509 } 3510 3511 TEST_F(FormatTest, NoOperandAlignment) { 3512 FormatStyle Style = getLLVMStyle(); 3513 Style.AlignOperands = false; 3514 Style.BreakBeforeBinaryOperators = FormatStyle::BOS_NonAssignment; 3515 verifyFormat("bool value = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3516 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3517 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3518 " == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3519 " * bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3520 " + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3521 " && aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3522 " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3523 " > ccccccccccccccccccccccccccccccccccccccccc;", 3524 Style); 3525 3526 verifyFormat("int aaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3527 " * bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3528 " + cc;", 3529 Style); 3530 verifyFormat("int a = aa\n" 3531 " + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 3532 " * cccccccccccccccccccccccccccccccccccc;", 3533 Style); 3534 3535 Style.AlignAfterOpenBracket = false; 3536 verifyFormat("return (a > b\n" 3537 " // comment1\n" 3538 " // comment2\n" 3539 " || c);", 3540 Style); 3541 } 3542 3543 TEST_F(FormatTest, BreakingBeforeNonAssigmentOperators) { 3544 FormatStyle Style = getLLVMStyle(); 3545 Style.BreakBeforeBinaryOperators = FormatStyle::BOS_NonAssignment; 3546 verifyFormat("int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 3547 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3548 " + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;", 3549 Style); 3550 } 3551 3552 TEST_F(FormatTest, ConstructorInitializers) { 3553 verifyFormat("Constructor() : Initializer(FitsOnTheLine) {}"); 3554 verifyFormat("Constructor() : Inttializer(FitsOnTheLine) {}", 3555 getLLVMStyleWithColumns(45)); 3556 verifyFormat("Constructor()\n" 3557 " : Inttializer(FitsOnTheLine) {}", 3558 getLLVMStyleWithColumns(44)); 3559 verifyFormat("Constructor()\n" 3560 " : Inttializer(FitsOnTheLine) {}", 3561 getLLVMStyleWithColumns(43)); 3562 3563 verifyFormat( 3564 "SomeClass::Constructor()\n" 3565 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaaaa(aaaaaaaaaaaa) {}"); 3566 3567 verifyFormat( 3568 "SomeClass::Constructor()\n" 3569 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 3570 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}"); 3571 verifyFormat( 3572 "SomeClass::Constructor()\n" 3573 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 3574 " aaaaaaaaaaaaaaa(aaaaaaaaaaaa) {}"); 3575 3576 verifyFormat("Constructor()\n" 3577 " : aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 3578 " aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3579 " aaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 3580 " aaaaaaaaaaaaaaaaaaaaaaa() {}"); 3581 3582 verifyFormat("Constructor()\n" 3583 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3584 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}"); 3585 3586 verifyFormat("Constructor(int Parameter = 0)\n" 3587 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaa),\n" 3588 " aaaaaaaaaaaa(aaaaaaaaaaaaaaaaa) {}"); 3589 verifyFormat("Constructor()\n" 3590 " : aaaaaaaaaaaaaaaaaaaa(a), bbbbbbbbbbbbbbbbbbbbbbbb(b) {\n" 3591 "}", 3592 getLLVMStyleWithColumns(60)); 3593 verifyFormat("Constructor()\n" 3594 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3595 " aaaaaaaaaaaaaaaaaaaaaaaaa(aaaa, aaaa)) {}"); 3596 3597 // Here a line could be saved by splitting the second initializer onto two 3598 // lines, but that is not desirable. 3599 verifyFormat("Constructor()\n" 3600 " : aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaa),\n" 3601 " aaaaaaaaaaa(aaaaaaaaaaa),\n" 3602 " aaaaaaaaaaaaaaaaaaaaat(aaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}"); 3603 3604 FormatStyle OnePerLine = getLLVMStyle(); 3605 OnePerLine.ConstructorInitializerAllOnOneLineOrOnePerLine = true; 3606 verifyFormat("SomeClass::Constructor()\n" 3607 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 3608 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 3609 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}", 3610 OnePerLine); 3611 verifyFormat("SomeClass::Constructor()\n" 3612 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), // Some comment\n" 3613 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 3614 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}", 3615 OnePerLine); 3616 verifyFormat("MyClass::MyClass(int var)\n" 3617 " : some_var_(var), // 4 space indent\n" 3618 " some_other_var_(var + 1) { // lined up\n" 3619 "}", 3620 OnePerLine); 3621 verifyFormat("Constructor()\n" 3622 " : aaaaa(aaaaaa),\n" 3623 " aaaaa(aaaaaa),\n" 3624 " aaaaa(aaaaaa),\n" 3625 " aaaaa(aaaaaa),\n" 3626 " aaaaa(aaaaaa) {}", 3627 OnePerLine); 3628 verifyFormat("Constructor()\n" 3629 " : aaaaa(aaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaa,\n" 3630 " aaaaaaaaaaaaaaaaaaaaaa) {}", 3631 OnePerLine); 3632 3633 EXPECT_EQ("Constructor()\n" 3634 " : // Comment forcing unwanted break.\n" 3635 " aaaa(aaaa) {}", 3636 format("Constructor() :\n" 3637 " // Comment forcing unwanted break.\n" 3638 " aaaa(aaaa) {}")); 3639 } 3640 3641 TEST_F(FormatTest, MemoizationTests) { 3642 // This breaks if the memoization lookup does not take \c Indent and 3643 // \c LastSpace into account. 3644 verifyFormat( 3645 "extern CFRunLoopTimerRef\n" 3646 "CFRunLoopTimerCreate(CFAllocatorRef allocato, CFAbsoluteTime fireDate,\n" 3647 " CFTimeInterval interval, CFOptionFlags flags,\n" 3648 " CFIndex order, CFRunLoopTimerCallBack callout,\n" 3649 " CFRunLoopTimerContext *context) {}"); 3650 3651 // Deep nesting somewhat works around our memoization. 3652 verifyFormat( 3653 "aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(\n" 3654 " aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(\n" 3655 " aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(\n" 3656 " aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(\n" 3657 " aaaaa())))))))))))))))))))))))))))))))))))))));", 3658 getLLVMStyleWithColumns(65)); 3659 verifyFormat( 3660 "aaaaa(\n" 3661 " aaaaa,\n" 3662 " aaaaa(\n" 3663 " aaaaa,\n" 3664 " aaaaa(\n" 3665 " aaaaa,\n" 3666 " aaaaa(\n" 3667 " aaaaa,\n" 3668 " aaaaa(\n" 3669 " aaaaa,\n" 3670 " aaaaa(\n" 3671 " aaaaa,\n" 3672 " aaaaa(\n" 3673 " aaaaa,\n" 3674 " aaaaa(\n" 3675 " aaaaa,\n" 3676 " aaaaa(\n" 3677 " aaaaa,\n" 3678 " aaaaa(\n" 3679 " aaaaa,\n" 3680 " aaaaa(\n" 3681 " aaaaa,\n" 3682 " aaaaa(\n" 3683 " aaaaa,\n" 3684 " aaaaa))))))))))));", 3685 getLLVMStyleWithColumns(65)); 3686 verifyFormat( 3687 "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" 3688 " a),\n" 3689 " a),\n" 3690 " a),\n" 3691 " a),\n" 3692 " a),\n" 3693 " a),\n" 3694 " a),\n" 3695 " a),\n" 3696 " a),\n" 3697 " a),\n" 3698 " a),\n" 3699 " a),\n" 3700 " a),\n" 3701 " a),\n" 3702 " a),\n" 3703 " a),\n" 3704 " a)", 3705 getLLVMStyleWithColumns(65)); 3706 3707 // This test takes VERY long when memoization is broken. 3708 FormatStyle OnePerLine = getLLVMStyle(); 3709 OnePerLine.ConstructorInitializerAllOnOneLineOrOnePerLine = true; 3710 OnePerLine.BinPackParameters = false; 3711 std::string input = "Constructor()\n" 3712 " : aaaa(a,\n"; 3713 for (unsigned i = 0, e = 80; i != e; ++i) { 3714 input += " a,\n"; 3715 } 3716 input += " a) {}"; 3717 verifyFormat(input, OnePerLine); 3718 } 3719 3720 TEST_F(FormatTest, BreaksAsHighAsPossible) { 3721 verifyFormat( 3722 "void f() {\n" 3723 " if ((aaaaaaaaaaaaaaaaaaaaaaaaaaaaa && aaaaaaaaaaaaaaaaaaaaaaaaaa) ||\n" 3724 " (bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb && bbbbbbbbbbbbbbbbbbbbbbbbbb))\n" 3725 " f();\n" 3726 "}"); 3727 verifyFormat("if (Intervals[i].getRange().getFirst() <\n" 3728 " Intervals[i - 1].getRange().getLast()) {\n}"); 3729 } 3730 3731 TEST_F(FormatTest, BreaksFunctionDeclarations) { 3732 // Principially, we break function declarations in a certain order: 3733 // 1) break amongst arguments. 3734 verifyFormat("Aaaaaaaaaaaaaa bbbbbbbbbbbbbb(Cccccccccccccc cccccccccccccc,\n" 3735 " Cccccccccccccc cccccccccccccc);"); 3736 verifyFormat("template <class TemplateIt>\n" 3737 "SomeReturnType SomeFunction(TemplateIt begin, TemplateIt end,\n" 3738 " TemplateIt *stop) {}"); 3739 3740 // 2) break after return type. 3741 verifyFormat( 3742 "Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3743 "bbbbbbbbbbbbbb(Cccccccccccccc cccccccccccccccccccccccccc);", 3744 getGoogleStyle()); 3745 3746 // 3) break after (. 3747 verifyFormat( 3748 "Aaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbbbbbb(\n" 3749 " Cccccccccccccccccccccccccccccc cccccccccccccccccccccccccccccccc);", 3750 getGoogleStyle()); 3751 3752 // 4) break before after nested name specifiers. 3753 verifyFormat( 3754 "Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3755 "SomeClasssssssssssssssssssssssssssssssssssssss::\n" 3756 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(Cccccccccccccc cccccccccc);", 3757 getGoogleStyle()); 3758 3759 // However, there are exceptions, if a sufficient amount of lines can be 3760 // saved. 3761 // FIXME: The precise cut-offs wrt. the number of saved lines might need some 3762 // more adjusting. 3763 verifyFormat("Aaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbb(Cccccccccccccc cccccccccc,\n" 3764 " Cccccccccccccc cccccccccc,\n" 3765 " Cccccccccccccc cccccccccc,\n" 3766 " Cccccccccccccc cccccccccc,\n" 3767 " Cccccccccccccc cccccccccc);"); 3768 verifyFormat( 3769 "Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3770 "bbbbbbbbbbb(Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n" 3771 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n" 3772 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc);", 3773 getGoogleStyle()); 3774 verifyFormat( 3775 "Aaaaaaaaaa bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(Cccccccccccccc cccccccccc,\n" 3776 " Cccccccccccccc cccccccccc,\n" 3777 " Cccccccccccccc cccccccccc,\n" 3778 " Cccccccccccccc cccccccccc,\n" 3779 " Cccccccccccccc cccccccccc,\n" 3780 " Cccccccccccccc cccccccccc,\n" 3781 " Cccccccccccccc cccccccccc);"); 3782 verifyFormat("Aaaaaaaaaa bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(\n" 3783 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n" 3784 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n" 3785 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n" 3786 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc);"); 3787 3788 // Break after multi-line parameters. 3789 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3790 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3791 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3792 " bbbb bbbb);"); 3793 verifyFormat("void SomeLoooooooooooongFunction(\n" 3794 " std::unique_ptr<aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>\n" 3795 " aaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3796 " int bbbbbbbbbbbbb);"); 3797 3798 // Treat overloaded operators like other functions. 3799 verifyFormat("SomeLoooooooooooooooooooooooooogType\n" 3800 "operator>(const SomeLoooooooooooooooooooooooooogType &other);"); 3801 verifyFormat("SomeLoooooooooooooooooooooooooogType\n" 3802 "operator>>(const SomeLooooooooooooooooooooooooogType &other);"); 3803 verifyFormat("SomeLoooooooooooooooooooooooooogType\n" 3804 "operator<<(const SomeLooooooooooooooooooooooooogType &other);"); 3805 verifyGoogleFormat( 3806 "SomeLoooooooooooooooooooooooooooooogType operator>>(\n" 3807 " const SomeLooooooooogType &a, const SomeLooooooooogType &b);"); 3808 verifyGoogleFormat( 3809 "SomeLoooooooooooooooooooooooooooooogType operator<<(\n" 3810 " const SomeLooooooooogType &a, const SomeLooooooooogType &b);"); 3811 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3812 " int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa = 1);"); 3813 verifyFormat("aaaaaaaaaaaaaaaaaaaaaa\n" 3814 "aaaaaaaaaaaaaaaaaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaa = 1);"); 3815 verifyGoogleFormat( 3816 "typename aaaaaaaaaa<aaaaaa>::aaaaaaaaaaa\n" 3817 "aaaaaaaaaa<aaaaaa>::aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3818 " bool *aaaaaaaaaaaaaaaaaa, bool *aa) {}"); 3819 3820 FormatStyle Style = getLLVMStyle(); 3821 Style.PointerAlignment = FormatStyle::PAS_Left; 3822 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3823 " aaaaaaaaaaaaaaaaaaaaaaaaa* const aaaaaaaaaaaa) {}", 3824 Style); 3825 verifyFormat("void aaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa*\n" 3826 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}", 3827 Style); 3828 } 3829 3830 TEST_F(FormatTest, TrailingReturnType) { 3831 verifyFormat("auto foo() -> int;\n"); 3832 verifyFormat("struct S {\n" 3833 " auto bar() const -> int;\n" 3834 "};"); 3835 verifyFormat("template <size_t Order, typename T>\n" 3836 "auto load_img(const std::string &filename)\n" 3837 " -> alias::tensor<Order, T, mem::tag::cpu> {}"); 3838 verifyFormat("auto SomeFunction(A aaaaaaaaaaaaaaaaaaaaa) const\n" 3839 " -> decltype(f(aaaaaaaaaaaaaaaaaaaaa)) {}"); 3840 verifyFormat("auto doSomething(Aaaaaa *aaaaaa) -> decltype(aaaaaa->f()) {}"); 3841 3842 // Not trailing return types. 3843 verifyFormat("void f() { auto a = b->c(); }"); 3844 } 3845 3846 TEST_F(FormatTest, BreaksFunctionDeclarationsWithTrailingTokens) { 3847 // Avoid breaking before trailing 'const' or other trailing annotations, if 3848 // they are not function-like. 3849 FormatStyle Style = getGoogleStyle(); 3850 Style.ColumnLimit = 47; 3851 verifyFormat("void someLongFunction(\n" 3852 " int someLoooooooooooooongParameter) const {\n}", 3853 getLLVMStyleWithColumns(47)); 3854 verifyFormat("LoooooongReturnType\n" 3855 "someLoooooooongFunction() const {}", 3856 getLLVMStyleWithColumns(47)); 3857 verifyFormat("LoooooongReturnType someLoooooooongFunction()\n" 3858 " const {}", 3859 Style); 3860 verifyFormat("void SomeFunction(aaaaa aaaaaaaaaaaaaaaaaaaa,\n" 3861 " aaaaa aaaaaaaaaaaaaaaaaaaa) OVERRIDE;"); 3862 verifyFormat("void SomeFunction(aaaaa aaaaaaaaaaaaaaaaaaaa,\n" 3863 " aaaaa aaaaaaaaaaaaaaaaaaaa) OVERRIDE FINAL;"); 3864 verifyFormat("void SomeFunction(aaaaa aaaaaaaaaaaaaaaaaaaa,\n" 3865 " aaaaa aaaaaaaaaaaaaaaaaaaa) override final;"); 3866 verifyFormat("virtual void aaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaa aaaa,\n" 3867 " aaaaaaaaaaa aaaaa) const override;"); 3868 verifyGoogleFormat( 3869 "virtual void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 3870 " const override;"); 3871 3872 // Even if the first parameter has to be wrapped. 3873 verifyFormat("void someLongFunction(\n" 3874 " int someLongParameter) const {}", 3875 getLLVMStyleWithColumns(46)); 3876 verifyFormat("void someLongFunction(\n" 3877 " int someLongParameter) const {}", 3878 Style); 3879 verifyFormat("void someLongFunction(\n" 3880 " int someLongParameter) override {}", 3881 Style); 3882 verifyFormat("void someLongFunction(\n" 3883 " int someLongParameter) OVERRIDE {}", 3884 Style); 3885 verifyFormat("void someLongFunction(\n" 3886 " int someLongParameter) final {}", 3887 Style); 3888 verifyFormat("void someLongFunction(\n" 3889 " int someLongParameter) FINAL {}", 3890 Style); 3891 verifyFormat("void someLongFunction(\n" 3892 " int parameter) const override {}", 3893 Style); 3894 3895 Style.BreakBeforeBraces = FormatStyle::BS_Allman; 3896 verifyFormat("void someLongFunction(\n" 3897 " int someLongParameter) const\n" 3898 "{\n" 3899 "}", 3900 Style); 3901 3902 // Unless these are unknown annotations. 3903 verifyFormat("void SomeFunction(aaaaaaaaaa aaaaaaaaaaaaaaa,\n" 3904 " aaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 3905 " LONG_AND_UGLY_ANNOTATION;"); 3906 3907 // Breaking before function-like trailing annotations is fine to keep them 3908 // close to their arguments. 3909 verifyFormat("void aaaaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 3910 " LOCKS_EXCLUDED(aaaaaaaaaaaaa);"); 3911 verifyFormat("void aaaaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) const\n" 3912 " LOCKS_EXCLUDED(aaaaaaaaaaaaa);"); 3913 verifyFormat("void aaaaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) const\n" 3914 " LOCKS_EXCLUDED(aaaaaaaaaaaaa) {}"); 3915 verifyGoogleFormat("void aaaaaaaaaaaaaa(aaaaaaaa aaa) override\n" 3916 " AAAAAAAAAAAAAAAAAAAAAAAA(aaaaaaaaaaaaaaa);"); 3917 verifyFormat("SomeFunction([](int i) LOCKS_EXCLUDED(a) {});"); 3918 3919 verifyFormat( 3920 "void aaaaaaaaaaaaaaaaaa()\n" 3921 " __attribute__((aaaaaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaa,\n" 3922 " aaaaaaaaaaaaaaaaaaaaaaaaa));"); 3923 verifyFormat("bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3924 " __attribute__((unused));"); 3925 verifyGoogleFormat( 3926 "bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3927 " GUARDED_BY(aaaaaaaaaaaa);"); 3928 verifyGoogleFormat( 3929 "bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3930 " GUARDED_BY(aaaaaaaaaaaa);"); 3931 verifyGoogleFormat( 3932 "bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa GUARDED_BY(aaaaaaaaaaaa) =\n" 3933 " aaaaaaaa::aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 3934 } 3935 3936 TEST_F(FormatTest, BreaksDesireably) { 3937 verifyFormat("if (aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaa) ||\n" 3938 " aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaa) ||\n" 3939 " aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaa)) {\n}"); 3940 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3941 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)) {\n" 3942 "}"); 3943 3944 verifyFormat( 3945 "aaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3946 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}"); 3947 3948 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3949 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3950 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa));"); 3951 3952 verifyFormat( 3953 "aaaaaaaa(aaaaaaaaaaaaa, aaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3954 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)),\n" 3955 " aaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3956 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)));"); 3957 3958 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 3959 " (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 3960 3961 verifyFormat( 3962 "void f() {\n" 3963 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa &&\n" 3964 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);\n" 3965 "}"); 3966 verifyFormat( 3967 "aaaaaa(new Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3968 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaa));"); 3969 verifyFormat( 3970 "aaaaaa(aaa, new Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3971 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaa));"); 3972 verifyFormat("aaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3973 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3974 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 3975 3976 // Indent consistently independent of call expression. 3977 verifyFormat("aaaaaaaaaaa(bbbbbbbbbbbbbbbbbbbbbbbbb.ccccccccccccccccc(\n" 3978 " dddddddddddddddddddddddddddddd));\n" 3979 "aaaaaaaaaaa(bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(\n" 3980 " dddddddddddddddddddddddddddddd));"); 3981 3982 // This test case breaks on an incorrect memoization, i.e. an optimization not 3983 // taking into account the StopAt value. 3984 verifyFormat( 3985 "return aaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaa ||\n" 3986 " aaaaaaaaaaa(aaaaaaaaa) || aaaaaaaaaaaaaaaaaaaaaaa ||\n" 3987 " aaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaa ||\n" 3988 " (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 3989 3990 verifyFormat("{\n {\n {\n" 3991 " Annotation.SpaceRequiredBefore =\n" 3992 " Line.Tokens[i - 1].Tok.isNot(tok::l_paren) &&\n" 3993 " Line.Tokens[i - 1].Tok.isNot(tok::l_square);\n" 3994 " }\n }\n}"); 3995 3996 // Break on an outer level if there was a break on an inner level. 3997 EXPECT_EQ("f(g(h(a, // comment\n" 3998 " b, c),\n" 3999 " d, e),\n" 4000 " x, y);", 4001 format("f(g(h(a, // comment\n" 4002 " b, c), d, e), x, y);")); 4003 4004 // Prefer breaking similar line breaks. 4005 verifyFormat( 4006 "const int kTrackingOptions = NSTrackingMouseMoved |\n" 4007 " NSTrackingMouseEnteredAndExited |\n" 4008 " NSTrackingActiveAlways;"); 4009 } 4010 4011 TEST_F(FormatTest, FormatsDeclarationsOnePerLine) { 4012 FormatStyle NoBinPacking = getGoogleStyle(); 4013 NoBinPacking.BinPackParameters = false; 4014 NoBinPacking.BinPackArguments = true; 4015 verifyFormat("void f() {\n" 4016 " f(aaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaa,\n" 4017 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);\n" 4018 "}", 4019 NoBinPacking); 4020 verifyFormat("void f(int aaaaaaaaaaaaaaaaaaaa,\n" 4021 " int aaaaaaaaaaaaaaaaaaaa,\n" 4022 " int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}", 4023 NoBinPacking); 4024 } 4025 4026 TEST_F(FormatTest, FormatsOneParameterPerLineIfNecessary) { 4027 FormatStyle NoBinPacking = getGoogleStyle(); 4028 NoBinPacking.BinPackParameters = false; 4029 NoBinPacking.BinPackArguments = false; 4030 verifyFormat("f(aaaaaaaaaaaaaaaaaaaa,\n" 4031 " aaaaaaaaaaaaaaaaaaaa,\n" 4032 " aaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaa);", 4033 NoBinPacking); 4034 verifyFormat("aaaaaaa(aaaaaaaaaaaaa,\n" 4035 " aaaaaaaaaaaaa,\n" 4036 " aaaaaaaaaaaaa(aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaa));", 4037 NoBinPacking); 4038 verifyFormat( 4039 "aaaaaaaa(aaaaaaaaaaaaa,\n" 4040 " aaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4041 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)),\n" 4042 " aaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4043 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)));", 4044 NoBinPacking); 4045 verifyFormat("aaaaaaaaaaaaaaa(aaaaaaaaa, aaaaaaaaa, aaaaaaaaaaaaaaaaaaaaa)\n" 4046 " .aaaaaaaaaaaaaaaaaa();", 4047 NoBinPacking); 4048 verifyFormat("void f() {\n" 4049 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4050 " aaaaaaaaaa, aaaaaaaaaa, aaaaaaaaaa, aaaaaaaaaaa);\n" 4051 "}", 4052 NoBinPacking); 4053 4054 verifyFormat( 4055 "aaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4056 " aaaaaaaaaaaa,\n" 4057 " aaaaaaaaaaaa);", 4058 NoBinPacking); 4059 verifyFormat( 4060 "somefunction(someotherFunction(ddddddddddddddddddddddddddddddddddd,\n" 4061 " ddddddddddddddddddddddddddddd),\n" 4062 " test);", 4063 NoBinPacking); 4064 4065 verifyFormat("std::vector<aaaaaaaaaaaaaaaaaaaaaaa,\n" 4066 " aaaaaaaaaaaaaaaaaaaaaaa,\n" 4067 " aaaaaaaaaaaaaaaaaaaaaaa> aaaaaaaaaaaaaaaaaa;", 4068 NoBinPacking); 4069 verifyFormat("a(\"a\"\n" 4070 " \"a\",\n" 4071 " a);"); 4072 4073 NoBinPacking.AllowAllParametersOfDeclarationOnNextLine = false; 4074 verifyFormat("void aaaaaaaaaa(aaaaaaaaa,\n" 4075 " aaaaaaaaa,\n" 4076 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4077 NoBinPacking); 4078 verifyFormat( 4079 "void f() {\n" 4080 " aaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaa, aaaaaaaaa, aaaaaaaaaaaaaaaaaaaaa)\n" 4081 " .aaaaaaa();\n" 4082 "}", 4083 NoBinPacking); 4084 verifyFormat( 4085 "template <class SomeType, class SomeOtherType>\n" 4086 "SomeType SomeFunction(SomeType Type, SomeOtherType OtherType) {}", 4087 NoBinPacking); 4088 } 4089 4090 TEST_F(FormatTest, AdaptiveOnePerLineFormatting) { 4091 FormatStyle Style = getLLVMStyleWithColumns(15); 4092 Style.ExperimentalAutoDetectBinPacking = true; 4093 EXPECT_EQ("aaa(aaaa,\n" 4094 " aaaa,\n" 4095 " aaaa);\n" 4096 "aaa(aaaa,\n" 4097 " aaaa,\n" 4098 " aaaa);", 4099 format("aaa(aaaa,\n" // one-per-line 4100 " aaaa,\n" 4101 " aaaa );\n" 4102 "aaa(aaaa, aaaa, aaaa);", // inconclusive 4103 Style)); 4104 EXPECT_EQ("aaa(aaaa, aaaa,\n" 4105 " aaaa);\n" 4106 "aaa(aaaa, aaaa,\n" 4107 " aaaa);", 4108 format("aaa(aaaa, aaaa,\n" // bin-packed 4109 " aaaa );\n" 4110 "aaa(aaaa, aaaa, aaaa);", // inconclusive 4111 Style)); 4112 } 4113 4114 TEST_F(FormatTest, FormatsBuilderPattern) { 4115 verifyFormat("return llvm::StringSwitch<Reference::Kind>(name)\n" 4116 " .StartsWith(\".eh_frame_hdr\", ORDER_EH_FRAMEHDR)\n" 4117 " .StartsWith(\".eh_frame\", ORDER_EH_FRAME)\n" 4118 " .StartsWith(\".init\", ORDER_INIT)\n" 4119 " .StartsWith(\".fini\", ORDER_FINI)\n" 4120 " .StartsWith(\".hash\", ORDER_HASH)\n" 4121 " .Default(ORDER_TEXT);\n"); 4122 4123 verifyFormat("return aaaaaaaaaaaaaaaaa->aaaaa().aaaaaaaaaaaaa().aaaaaa() <\n" 4124 " aaaaaaaaaaaaaaa->aaaaa().aaaaaaaaaaaaa().aaaaaa();"); 4125 verifyFormat( 4126 "aaaaaaa->aaaaaaa->aaaaaaaaaaaaaaaa(\n" 4127 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4128 " ->aaaaaaaa(aaaaaaaaaaaaaaa);"); 4129 verifyFormat( 4130 "aaaaaaaaaaaaaaaaaaa()->aaaaaa(bbbbb)->aaaaaaaaaaaaaaaaaaa( // break\n" 4131 " aaaaaaaaaaaaaa);"); 4132 verifyFormat( 4133 "aaaaaaaaaaaaaaaaaaaaaaa *aaaaaaaaa =\n" 4134 " aaaaaa->aaaaaaaaaaaa()\n" 4135 " ->aaaaaaaaaaaaaaaa(\n" 4136 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4137 " ->aaaaaaaaaaaaaaaaa();"); 4138 verifyGoogleFormat( 4139 "void f() {\n" 4140 " someo->Add((new util::filetools::Handler(dir))\n" 4141 " ->OnEvent1(NewPermanentCallback(\n" 4142 " this, &HandlerHolderClass::EventHandlerCBA))\n" 4143 " ->OnEvent2(NewPermanentCallback(\n" 4144 " this, &HandlerHolderClass::EventHandlerCBB))\n" 4145 " ->OnEvent3(NewPermanentCallback(\n" 4146 " this, &HandlerHolderClass::EventHandlerCBC))\n" 4147 " ->OnEvent5(NewPermanentCallback(\n" 4148 " this, &HandlerHolderClass::EventHandlerCBD))\n" 4149 " ->OnEvent6(NewPermanentCallback(\n" 4150 " this, &HandlerHolderClass::EventHandlerCBE)));\n" 4151 "}"); 4152 4153 verifyFormat( 4154 "aaaaaaaaaaa().aaaaaaaaaaa().aaaaaaaaaaa().aaaaaaaaaaa().aaaaaaaaaaa();"); 4155 verifyFormat("aaaaaaaaaaaaaaa()\n" 4156 " .aaaaaaaaaaaaaaa()\n" 4157 " .aaaaaaaaaaaaaaa()\n" 4158 " .aaaaaaaaaaaaaaa()\n" 4159 " .aaaaaaaaaaaaaaa();"); 4160 verifyFormat("aaaaaaaaaaaaaaa.aaaaaaaaaaaaaaa()\n" 4161 " .aaaaaaaaaaaaaaa()\n" 4162 " .aaaaaaaaaaaaaaa()\n" 4163 " .aaaaaaaaaaaaaaa();"); 4164 verifyFormat("aaaaaaaaaaaaaaa.aaaaaaaaaaaaaaa()\n" 4165 " .aaaaaaaaaaaaaaa.aaaaaaaaaaaaaaa()\n" 4166 " .aaaaaaaaaaaaaaa();"); 4167 verifyFormat("aaaaaaaaaaaaa->aaaaaaaaaaaaaaaaaaaaaaaa()\n" 4168 " ->aaaaaaaaaaaaaae(0)\n" 4169 " ->aaaaaaaaaaaaaaa();"); 4170 4171 // Don't linewrap after very short segments. 4172 verifyFormat("a().aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4173 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4174 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 4175 verifyFormat("aa().aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4176 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4177 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 4178 verifyFormat("aaa()\n" 4179 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4180 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4181 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 4182 4183 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaa.aaaaaaaaaaaaa()\n" 4184 " .aaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 4185 " .has<bbbbbbbbbbbbbbbbbbbbb>();"); 4186 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaa.aaaaaaaaaaaaa()\n" 4187 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa<\n" 4188 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>();"); 4189 4190 // Prefer not to break after empty parentheses. 4191 verifyFormat("FirstToken->WhitespaceRange.getBegin().getLocWithOffset(\n" 4192 " First->LastNewlineOffset);"); 4193 } 4194 4195 TEST_F(FormatTest, BreaksAccordingToOperatorPrecedence) { 4196 verifyFormat( 4197 "if (aaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 4198 " bbbbbbbbbbbbbbbbbbbbbbbbb && ccccccccccccccccccccccccc) {\n}"); 4199 verifyFormat( 4200 "if (aaaaaaaaaaaaaaaaaaaaaaaaa or\n" 4201 " bbbbbbbbbbbbbbbbbbbbbbbbb and cccccccccccccccccccccccc) {\n}"); 4202 4203 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaa && bbbbbbbbbbbbbbbbbbbbbbbbb ||\n" 4204 " ccccccccccccccccccccccccc) {\n}"); 4205 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaa and bbbbbbbbbbbbbbbbbbbbbbbb or\n" 4206 " ccccccccccccccccccccccccc) {\n}"); 4207 4208 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaa || bbbbbbbbbbbbbbbbbbbbbbbbb ||\n" 4209 " ccccccccccccccccccccccccc) {\n}"); 4210 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaa or bbbbbbbbbbbbbbbbbbbbbbbbb or\n" 4211 " ccccccccccccccccccccccccc) {\n}"); 4212 4213 verifyFormat( 4214 "if ((aaaaaaaaaaaaaaaaaaaaaaaaa || bbbbbbbbbbbbbbbbbbbbbbbbb) &&\n" 4215 " ccccccccccccccccccccccccc) {\n}"); 4216 verifyFormat( 4217 "if ((aaaaaaaaaaaaaaaaaaaaaaaaa or bbbbbbbbbbbbbbbbbbbbbbbbb) and\n" 4218 " ccccccccccccccccccccccccc) {\n}"); 4219 4220 verifyFormat("return aaaa & AAAAAAAAAAAAAAAAAAAAAAAAAAAAA ||\n" 4221 " bbbb & BBBBBBBBBBBBBBBBBBBBBBBBBBBBB ||\n" 4222 " cccc & CCCCCCCCCCCCCCCCCCCCCCCCCC ||\n" 4223 " dddd & DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD;"); 4224 verifyFormat("return aaaa & AAAAAAAAAAAAAAAAAAAAAAAAAAAAA or\n" 4225 " bbbb & BBBBBBBBBBBBBBBBBBBBBBBBBBBBB or\n" 4226 " cccc & CCCCCCCCCCCCCCCCCCCCCCCCCC or\n" 4227 " dddd & DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD;"); 4228 4229 verifyFormat("if ((aaaaaaaaaa != aaaaaaaaaaaaaaa ||\n" 4230 " aaaaaaaaaaaaaaaaaaaaaaaa() >= aaaaaaaaaaaaaaaaaaaa) &&\n" 4231 " aaaaaaaaaaaaaaa != aa) {\n}"); 4232 verifyFormat("if ((aaaaaaaaaa != aaaaaaaaaaaaaaa or\n" 4233 " aaaaaaaaaaaaaaaaaaaaaaaa() >= aaaaaaaaaaaaaaaaaaaa) and\n" 4234 " aaaaaaaaaaaaaaa != aa) {\n}"); 4235 } 4236 4237 TEST_F(FormatTest, BreaksAfterAssignments) { 4238 verifyFormat( 4239 "unsigned Cost =\n" 4240 " TTI.getMemoryOpCost(I->getOpcode(), VectorTy, SI->getAlignment(),\n" 4241 " SI->getPointerAddressSpaceee());\n"); 4242 verifyFormat( 4243 "CharSourceRange LineRange = CharSourceRange::getTokenRange(\n" 4244 " Line.Tokens.front().Tok.getLo(), Line.Tokens.back().Tok.getLoc());"); 4245 4246 verifyFormat( 4247 "aaaaaaaaaaaaaaaaaaaaaaaaaa aaaa = aaaaaaaaaaaaaa(0).aaaa().aaaaaaaaa(\n" 4248 " aaaaaaaaaaaaaaaaaaa::aaaaaaaaaaaaaaaaaaaaa);"); 4249 verifyFormat("unsigned OriginalStartColumn =\n" 4250 " SourceMgr.getSpellingColumnNumber(\n" 4251 " Current.FormatTok.getStartOfNonWhitespace()) -\n" 4252 " 1;"); 4253 } 4254 4255 TEST_F(FormatTest, AlignsAfterAssignments) { 4256 verifyFormat( 4257 "int Result = aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4258 " aaaaaaaaaaaaaaaaaaaaaaaaa;"); 4259 verifyFormat( 4260 "Result += aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4261 " aaaaaaaaaaaaaaaaaaaaaaaaa;"); 4262 verifyFormat( 4263 "Result >>= aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4264 " aaaaaaaaaaaaaaaaaaaaaaaaa;"); 4265 verifyFormat( 4266 "int Result = (aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4267 " aaaaaaaaaaaaaaaaaaaaaaaaa);"); 4268 verifyFormat( 4269 "double LooooooooooooooooooooooooongResult = aaaaaaaaaaaaaaaaaaaaaaaa +\n" 4270 " aaaaaaaaaaaaaaaaaaaaaaaa +\n" 4271 " aaaaaaaaaaaaaaaaaaaaaaaa;"); 4272 } 4273 4274 TEST_F(FormatTest, AlignsAfterReturn) { 4275 verifyFormat( 4276 "return aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4277 " aaaaaaaaaaaaaaaaaaaaaaaaa;"); 4278 verifyFormat( 4279 "return (aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4280 " aaaaaaaaaaaaaaaaaaaaaaaaa);"); 4281 verifyFormat( 4282 "return aaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa >=\n" 4283 " aaaaaaaaaaaaaaaaaaaaaa();"); 4284 verifyFormat( 4285 "return (aaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa >=\n" 4286 " aaaaaaaaaaaaaaaaaaaaaa());"); 4287 verifyFormat("return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4288 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4289 verifyFormat("return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4290 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) &&\n" 4291 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4292 verifyFormat("return\n" 4293 " // true if code is one of a or b.\n" 4294 " code == a || code == b;"); 4295 } 4296 4297 TEST_F(FormatTest, AlignsAfterOpenBracket) { 4298 verifyFormat( 4299 "void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaa aaaaaaaa,\n" 4300 " aaaaaaaaa aaaaaaa) {}"); 4301 verifyFormat( 4302 "SomeLongVariableName->someVeryLongFunctionName(aaaaaaaaaaa aaaaaaaaa,\n" 4303 " aaaaaaaaaaa aaaaaaaaa);"); 4304 verifyFormat( 4305 "SomeLongVariableName->someFunction(foooooooo(aaaaaaaaaaaaaaa,\n" 4306 " aaaaaaaaaaaaaaaaaaaaa));"); 4307 FormatStyle Style = getLLVMStyle(); 4308 Style.AlignAfterOpenBracket = false; 4309 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4310 " aaaaaaaaaaa aaaaaaaa, aaaaaaaaa aaaaaaa) {}", 4311 Style); 4312 verifyFormat("SomeLongVariableName->someVeryLongFunctionName(\n" 4313 " aaaaaaaaaaa aaaaaaaaa, aaaaaaaaaaa aaaaaaaaa);", 4314 Style); 4315 verifyFormat("SomeLongVariableName->someFunction(\n" 4316 " foooooooo(aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaa));", 4317 Style); 4318 verifyFormat( 4319 "void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaa aaaaaaaa,\n" 4320 " aaaaaaaaa aaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}", 4321 Style); 4322 verifyFormat( 4323 "SomeLongVariableName->someVeryLongFunctionName(aaaaaaaaaaa aaaaaaaaa,\n" 4324 " aaaaaaaaaaa aaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4325 Style); 4326 verifyFormat( 4327 "SomeLongVariableName->someFunction(foooooooo(aaaaaaaaaaaaaaa,\n" 4328 " aaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa));", 4329 Style); 4330 } 4331 4332 TEST_F(FormatTest, ParenthesesAndOperandAlignment) { 4333 FormatStyle Style = getLLVMStyleWithColumns(40); 4334 verifyFormat("int a = f(aaaaaaaaaaaaaaaaaaaaaa &&\n" 4335 " bbbbbbbbbbbbbbbbbbbbbb);", 4336 Style); 4337 Style.AlignAfterOpenBracket = true; 4338 Style.AlignOperands = false; 4339 verifyFormat("int a = f(aaaaaaaaaaaaaaaaaaaaaa &&\n" 4340 " bbbbbbbbbbbbbbbbbbbbbb);", 4341 Style); 4342 Style.AlignAfterOpenBracket = false; 4343 Style.AlignOperands = true; 4344 verifyFormat("int a = f(aaaaaaaaaaaaaaaaaaaaaa &&\n" 4345 " bbbbbbbbbbbbbbbbbbbbbb);", 4346 Style); 4347 Style.AlignAfterOpenBracket = false; 4348 Style.AlignOperands = false; 4349 verifyFormat("int a = f(aaaaaaaaaaaaaaaaaaaaaa &&\n" 4350 " bbbbbbbbbbbbbbbbbbbbbb);", 4351 Style); 4352 } 4353 4354 TEST_F(FormatTest, BreaksConditionalExpressions) { 4355 verifyFormat( 4356 "aaaa(aaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4357 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4358 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4359 verifyFormat( 4360 "aaaa(aaaaaaaaaaaaaaaaaaaa, aaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4361 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4362 verifyFormat( 4363 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaa ? aaaa(aaaaaa)\n" 4364 " : aaaaaaaaaaaaa);"); 4365 verifyFormat( 4366 "aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4367 " aaaaaaaaaaaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4368 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4369 " aaaaaaaaaaaaa);"); 4370 verifyFormat( 4371 "aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4372 " aaaaaaaaaaaaaaaa ?: aaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4373 " aaaaaaaaaaaaa);"); 4374 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4375 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4376 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4377 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4378 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4379 verifyFormat("aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4380 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4381 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4382 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4383 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4384 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 4385 " aaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4386 verifyFormat("aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4387 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4388 " ?: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4389 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 4390 " aaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4391 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4392 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4393 " : aaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4394 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaa =\n" 4395 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4396 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4397 " : aaaaaaaaaaaaaaaa;"); 4398 verifyFormat( 4399 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4400 " ? aaaaaaaaaaaaaaa\n" 4401 " : aaaaaaaaaaaaaaa;"); 4402 verifyFormat("f(aaaaaaaaaaaaaaaa == // force break\n" 4403 " aaaaaaaaa\n" 4404 " ? b\n" 4405 " : c);"); 4406 verifyFormat("return aaaa == bbbb\n" 4407 " // comment\n" 4408 " ? aaaa\n" 4409 " : bbbb;"); 4410 verifyFormat("unsigned Indent =\n" 4411 " format(TheLine.First, IndentForLevel[TheLine.Level] >= 0\n" 4412 " ? IndentForLevel[TheLine.Level]\n" 4413 " : TheLine * 2,\n" 4414 " TheLine.InPPDirective, PreviousEndOfLineColumn);", 4415 getLLVMStyleWithColumns(70)); 4416 verifyFormat("bool aaaaaa = aaaaaaaaaaaaa //\n" 4417 " ? aaaaaaaaaaaaaaa\n" 4418 " : bbbbbbbbbbbbbbb //\n" 4419 " ? ccccccccccccccc\n" 4420 " : ddddddddddddddd;"); 4421 verifyFormat("bool aaaaaa = aaaaaaaaaaaaa //\n" 4422 " ? aaaaaaaaaaaaaaa\n" 4423 " : (bbbbbbbbbbbbbbb //\n" 4424 " ? ccccccccccccccc\n" 4425 " : ddddddddddddddd);"); 4426 verifyFormat( 4427 "int aaaaaaaaaaaaaaaaaaaaaaaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4428 " ? aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 4429 " aaaaaaaaaaaaaaaaaaaaa +\n" 4430 " aaaaaaaaaaaaaaaaaaaaa\n" 4431 " : aaaaaaaaaa;"); 4432 verifyFormat( 4433 "aaaaaa = aaaaaaaaaaaa\n" 4434 " ? aaaaaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4435 " : aaaaaaaaaaaaaaaaaaaaaa\n" 4436 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4437 4438 FormatStyle NoBinPacking = getLLVMStyle(); 4439 NoBinPacking.BinPackArguments = false; 4440 verifyFormat( 4441 "void f() {\n" 4442 " g(aaa,\n" 4443 " aaaaaaaaaa == aaaaaaaaaa ? aaaa : aaaaa,\n" 4444 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4445 " ? aaaaaaaaaaaaaaa\n" 4446 " : aaaaaaaaaaaaaaa);\n" 4447 "}", 4448 NoBinPacking); 4449 verifyFormat( 4450 "void f() {\n" 4451 " g(aaa,\n" 4452 " aaaaaaaaaa == aaaaaaaaaa ? aaaa : aaaaa,\n" 4453 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4454 " ?: aaaaaaaaaaaaaaa);\n" 4455 "}", 4456 NoBinPacking); 4457 4458 verifyFormat("SomeFunction(aaaaaaaaaaaaaaaaa,\n" 4459 " // comment.\n" 4460 " ccccccccccccccccccccccccccccccccccccccc\n" 4461 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4462 " : bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb);"); 4463 4464 // Assignments in conditional expressions. Apparently not uncommon :-(. 4465 verifyFormat("return a != b\n" 4466 " // comment\n" 4467 " ? a = b\n" 4468 " : a = b;"); 4469 verifyFormat("return a != b\n" 4470 " // comment\n" 4471 " ? a = a != b\n" 4472 " // comment\n" 4473 " ? a = b\n" 4474 " : a\n" 4475 " : a;\n"); 4476 verifyFormat("return a != b\n" 4477 " // comment\n" 4478 " ? a\n" 4479 " : a = a != b\n" 4480 " // comment\n" 4481 " ? a = b\n" 4482 " : a;"); 4483 } 4484 4485 TEST_F(FormatTest, BreaksConditionalExpressionsAfterOperator) { 4486 FormatStyle Style = getLLVMStyle(); 4487 Style.BreakBeforeTernaryOperators = false; 4488 Style.ColumnLimit = 70; 4489 verifyFormat( 4490 "aaaa(aaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 4491 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 4492 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4493 Style); 4494 verifyFormat( 4495 "aaaa(aaaaaaaaaaaaaaaaaaaa, aaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 4496 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4497 Style); 4498 verifyFormat( 4499 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaa ? aaaa(aaaaaa) :\n" 4500 " aaaaaaaaaaaaa);", 4501 Style); 4502 verifyFormat( 4503 "aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4504 " aaaaaaaaaaaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 4505 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4506 " aaaaaaaaaaaaa);", 4507 Style); 4508 verifyFormat( 4509 "aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4510 " aaaaaaaaaaaaaaaa ?: aaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4511 " aaaaaaaaaaaaa);", 4512 Style); 4513 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 4514 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4515 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) :\n" 4516 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4517 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4518 Style); 4519 verifyFormat("aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4520 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 4521 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4522 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) :\n" 4523 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4524 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 4525 " aaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4526 Style); 4527 verifyFormat("aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4528 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?:\n" 4529 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4530 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 4531 " aaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4532 Style); 4533 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 4534 " aaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 4535 " aaaaaaaaaaaaaaaaaaaaaaaaaaa;", 4536 Style); 4537 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaa =\n" 4538 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 4539 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 4540 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;", 4541 Style); 4542 verifyFormat( 4543 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 4544 " aaaaaaaaaaaaaaa :\n" 4545 " aaaaaaaaaaaaaaa;", 4546 Style); 4547 verifyFormat("f(aaaaaaaaaaaaaaaa == // force break\n" 4548 " aaaaaaaaa ?\n" 4549 " b :\n" 4550 " c);", 4551 Style); 4552 verifyFormat( 4553 "unsigned Indent =\n" 4554 " format(TheLine.First, IndentForLevel[TheLine.Level] >= 0 ?\n" 4555 " IndentForLevel[TheLine.Level] :\n" 4556 " TheLine * 2,\n" 4557 " TheLine.InPPDirective, PreviousEndOfLineColumn);", 4558 Style); 4559 verifyFormat("bool aaaaaa = aaaaaaaaaaaaa ? //\n" 4560 " aaaaaaaaaaaaaaa :\n" 4561 " bbbbbbbbbbbbbbb ? //\n" 4562 " ccccccccccccccc :\n" 4563 " ddddddddddddddd;", 4564 Style); 4565 verifyFormat("bool aaaaaa = aaaaaaaaaaaaa ? //\n" 4566 " aaaaaaaaaaaaaaa :\n" 4567 " (bbbbbbbbbbbbbbb ? //\n" 4568 " ccccccccccccccc :\n" 4569 " ddddddddddddddd);", 4570 Style); 4571 } 4572 4573 TEST_F(FormatTest, DeclarationsOfMultipleVariables) { 4574 verifyFormat("bool aaaaaaaaaaaaaaaaa = aaaaaa->aaaaaaaaaaaaaaaaa(),\n" 4575 " aaaaaaaaaaa = aaaaaa->aaaaaaaaaaa();"); 4576 verifyFormat("bool a = true, b = false;"); 4577 4578 verifyFormat("bool aaaaaaaaaaaaaaaaaaaaaaaaa =\n" 4579 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaa),\n" 4580 " bbbbbbbbbbbbbbbbbbbbbbbbb =\n" 4581 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(bbbbbbbbbbbbbbbb);"); 4582 verifyFormat( 4583 "bool aaaaaaaaaaaaaaaaaaaaa =\n" 4584 " bbbbbbbbbbbbbbbbbbbbbbbbbbbb && cccccccccccccccccccccccccccc,\n" 4585 " d = e && f;"); 4586 verifyFormat("aaaaaaaaa a = aaaaaaaaaaaaaaaaaaaa, b = bbbbbbbbbbbbbbbbbbbb,\n" 4587 " c = cccccccccccccccccccc, d = dddddddddddddddddddd;"); 4588 verifyFormat("aaaaaaaaa *a = aaaaaaaaaaaaaaaaaaa, *b = bbbbbbbbbbbbbbbbbbb,\n" 4589 " *c = ccccccccccccccccccc, *d = ddddddddddddddddddd;"); 4590 verifyFormat("aaaaaaaaa ***a = aaaaaaaaaaaaaaaaaaa, ***b = bbbbbbbbbbbbbbb,\n" 4591 " ***c = ccccccccccccccccccc, ***d = ddddddddddddddd;"); 4592 4593 FormatStyle Style = getGoogleStyle(); 4594 Style.PointerAlignment = FormatStyle::PAS_Left; 4595 Style.DerivePointerAlignment = false; 4596 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4597 " *aaaaaaaaaaaaaaaaaaaaaaaaaaaaa = aaaaaaaaaaaaaaaaaaa,\n" 4598 " *b = bbbbbbbbbbbbbbbbbbb;", 4599 Style); 4600 verifyFormat("aaaaaaaaa *a = aaaaaaaaaaaaaaaaaaa, *b = bbbbbbbbbbbbbbbbbbb,\n" 4601 " *b = bbbbbbbbbbbbbbbbbbb, *d = ddddddddddddddddddd;", 4602 Style); 4603 } 4604 4605 TEST_F(FormatTest, ConditionalExpressionsInBrackets) { 4606 verifyFormat("arr[foo ? bar : baz];"); 4607 verifyFormat("f()[foo ? bar : baz];"); 4608 verifyFormat("(a + b)[foo ? bar : baz];"); 4609 verifyFormat("arr[foo ? (4 > 5 ? 4 : 5) : 5 < 5 ? 5 : 7];"); 4610 } 4611 4612 TEST_F(FormatTest, AlignsStringLiterals) { 4613 verifyFormat("loooooooooooooooooooooooooongFunction(\"short literal \"\n" 4614 " \"short literal\");"); 4615 verifyFormat( 4616 "looooooooooooooooooooooooongFunction(\n" 4617 " \"short literal\"\n" 4618 " \"looooooooooooooooooooooooooooooooooooooooooooooooong literal\");"); 4619 verifyFormat("someFunction(\"Always break between multi-line\"\n" 4620 " \" string literals\",\n" 4621 " and, other, parameters);"); 4622 EXPECT_EQ("fun + \"1243\" /* comment */\n" 4623 " \"5678\";", 4624 format("fun + \"1243\" /* comment */\n" 4625 " \"5678\";", 4626 getLLVMStyleWithColumns(28))); 4627 EXPECT_EQ( 4628 "aaaaaa = \"aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaa \"\n" 4629 " \"aaaaaaaaaaaaaaaaaaaaa\"\n" 4630 " \"aaaaaaaaaaaaaaaa\";", 4631 format("aaaaaa =" 4632 "\"aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaa " 4633 "aaaaaaaaaaaaaaaaaaaaa\" " 4634 "\"aaaaaaaaaaaaaaaa\";")); 4635 verifyFormat("a = a + \"a\"\n" 4636 " \"a\"\n" 4637 " \"a\";"); 4638 verifyFormat("f(\"a\", \"b\"\n" 4639 " \"c\");"); 4640 4641 verifyFormat( 4642 "#define LL_FORMAT \"ll\"\n" 4643 "printf(\"aaaaa: %d, bbbbbb: %\" LL_FORMAT \"d, cccccccc: %\" LL_FORMAT\n" 4644 " \"d, ddddddddd: %\" LL_FORMAT \"d\");"); 4645 4646 verifyFormat("#define A(X) \\\n" 4647 " \"aaaaa\" #X \"bbbbbb\" \\\n" 4648 " \"ccccc\"", 4649 getLLVMStyleWithColumns(23)); 4650 verifyFormat("#define A \"def\"\n" 4651 "f(\"abc\" A \"ghi\"\n" 4652 " \"jkl\");"); 4653 4654 verifyFormat("f(L\"a\"\n" 4655 " L\"b\")"); 4656 verifyFormat("#define A(X) \\\n" 4657 " L\"aaaaa\" #X L\"bbbbbb\" \\\n" 4658 " L\"ccccc\"", 4659 getLLVMStyleWithColumns(25)); 4660 } 4661 4662 TEST_F(FormatTest, AlwaysBreakAfterDefinitionReturnType) { 4663 FormatStyle AfterType = getLLVMStyle(); 4664 AfterType.AlwaysBreakAfterDefinitionReturnType = true; 4665 verifyFormat("const char *\n" 4666 "f(void) {\n" // Break here. 4667 " return \"\";\n" 4668 "}\n" 4669 "const char *bar(void);\n", // No break here. 4670 AfterType); 4671 verifyFormat("template <class T>\n" 4672 "T *\n" 4673 "f(T &c) {\n" // Break here. 4674 " return NULL;\n" 4675 "}\n" 4676 "template <class T> T *f(T &c);\n", // No break here. 4677 AfterType); 4678 AfterType.BreakBeforeBraces = FormatStyle::BS_Stroustrup; 4679 verifyFormat("const char *\n" 4680 "f(void)\n" // Break here. 4681 "{\n" 4682 " return \"\";\n" 4683 "}\n" 4684 "const char *bar(void);\n", // No break here. 4685 AfterType); 4686 verifyFormat("template <class T>\n" 4687 "T *\n" // Problem here: no line break 4688 "f(T &c)\n" // Break here. 4689 "{\n" 4690 " return NULL;\n" 4691 "}\n" 4692 "template <class T> T *f(T &c);\n", // No break here. 4693 AfterType); 4694 } 4695 4696 TEST_F(FormatTest, AlwaysBreakBeforeMultilineStrings) { 4697 FormatStyle NoBreak = getLLVMStyle(); 4698 NoBreak.AlwaysBreakBeforeMultilineStrings = false; 4699 FormatStyle Break = getLLVMStyle(); 4700 Break.AlwaysBreakBeforeMultilineStrings = true; 4701 verifyFormat("aaaa = \"bbbb\"\n" 4702 " \"cccc\";", 4703 NoBreak); 4704 verifyFormat("aaaa =\n" 4705 " \"bbbb\"\n" 4706 " \"cccc\";", 4707 Break); 4708 verifyFormat("aaaa(\"bbbb\"\n" 4709 " \"cccc\");", 4710 NoBreak); 4711 verifyFormat("aaaa(\n" 4712 " \"bbbb\"\n" 4713 " \"cccc\");", 4714 Break); 4715 verifyFormat("aaaa(qqq, \"bbbb\"\n" 4716 " \"cccc\");", 4717 NoBreak); 4718 verifyFormat("aaaa(qqq,\n" 4719 " \"bbbb\"\n" 4720 " \"cccc\");", 4721 Break); 4722 verifyFormat("aaaa(qqq,\n" 4723 " L\"bbbb\"\n" 4724 " L\"cccc\");", 4725 Break); 4726 4727 // As we break before unary operators, breaking right after them is bad. 4728 verifyFormat("string foo = abc ? \"x\"\n" 4729 " \"blah blah blah blah blah blah\"\n" 4730 " : \"y\";", 4731 Break); 4732 4733 // Don't break if there is no column gain. 4734 verifyFormat("f(\"aaaa\"\n" 4735 " \"bbbb\");", 4736 Break); 4737 4738 // Treat literals with escaped newlines like multi-line string literals. 4739 EXPECT_EQ("x = \"a\\\n" 4740 "b\\\n" 4741 "c\";", 4742 format("x = \"a\\\n" 4743 "b\\\n" 4744 "c\";", 4745 NoBreak)); 4746 EXPECT_EQ("x =\n" 4747 " \"a\\\n" 4748 "b\\\n" 4749 "c\";", 4750 format("x = \"a\\\n" 4751 "b\\\n" 4752 "c\";", 4753 Break)); 4754 4755 // Exempt ObjC strings for now. 4756 EXPECT_EQ("NSString *const kString = @\"aaaa\"\n" 4757 " \"bbbb\";", 4758 format("NSString *const kString = @\"aaaa\"\n" 4759 "\"bbbb\";", 4760 Break)); 4761 4762 Break.ColumnLimit = 0; 4763 verifyFormat("const char *hello = \"hello llvm\";", Break); 4764 } 4765 4766 TEST_F(FormatTest, AlignsPipes) { 4767 verifyFormat( 4768 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4769 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4770 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4771 verifyFormat( 4772 "aaaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaa\n" 4773 " << aaaaaaaaaaaaaaaaaaaa;"); 4774 verifyFormat( 4775 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4776 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4777 verifyFormat( 4778 "llvm::outs() << \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"\n" 4779 " \"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\"\n" 4780 " << \"ccccccccccccccccccccccccccccccccccccccccccccccccc\";"); 4781 verifyFormat( 4782 "aaaaaaaa << (aaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4783 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4784 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4785 verifyFormat( 4786 "llvm::errs() << \"a: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4787 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4788 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4789 verifyFormat("llvm::errs() << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4790 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4791 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4792 " << bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;"); 4793 verifyFormat( 4794 "llvm::errs() << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4795 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4796 4797 verifyFormat("return out << \"somepacket = {\\n\"\n" 4798 " << \" aaaaaa = \" << pkt.aaaaaa << \"\\n\"\n" 4799 " << \" bbbb = \" << pkt.bbbb << \"\\n\"\n" 4800 " << \" cccccc = \" << pkt.cccccc << \"\\n\"\n" 4801 " << \" ddd = [\" << pkt.ddd << \"]\\n\"\n" 4802 " << \"}\";"); 4803 4804 verifyFormat("llvm::outs() << \"aaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaa\n" 4805 " << \"aaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaa\n" 4806 " << \"aaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaa;"); 4807 verifyFormat( 4808 "llvm::outs() << \"aaaaaaaaaaaaaaaaa = \" << aaaaaaaaaaaaaaaaa\n" 4809 " << \"bbbbbbbbbbbbbbbbb = \" << bbbbbbbbbbbbbbbbb\n" 4810 " << \"ccccccccccccccccc = \" << ccccccccccccccccc\n" 4811 " << \"ddddddddddddddddd = \" << ddddddddddddddddd\n" 4812 " << \"eeeeeeeeeeeeeeeee = \" << eeeeeeeeeeeeeeeee;"); 4813 verifyFormat("llvm::outs() << aaaaaaaaaaaaaaaaaaaaaaaa << \"=\"\n" 4814 " << bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;"); 4815 verifyFormat( 4816 "void f() {\n" 4817 " llvm::outs() << \"aaaaaaaaaaaaaaaaaaaa: \"\n" 4818 " << aaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaa);\n" 4819 "}"); 4820 verifyFormat("llvm::outs() << \"aaaaaaaaaaaaaaaa: \"\n" 4821 " << aaaaaaaa.aaaaaaaaaaaa(aaa)->aaaaaaaaaaaaaa();"); 4822 4823 // Breaking before the first "<<" is generally not desirable. 4824 verifyFormat( 4825 "llvm::errs()\n" 4826 " << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4827 " << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4828 " << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4829 " << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa;", 4830 getLLVMStyleWithColumns(70)); 4831 verifyFormat("llvm::errs() << \"aaaaaaaaaaaaaaaaaaa: \"\n" 4832 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4833 " << \"aaaaaaaaaaaaaaaaaaa: \"\n" 4834 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4835 " << \"aaaaaaaaaaaaaaaaaaa: \"\n" 4836 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaa;", 4837 getLLVMStyleWithColumns(70)); 4838 4839 // But sometimes, breaking before the first "<<" is desirable. 4840 verifyFormat("Diag(aaaaaaaaaaaaaaaaaaaa, aaaaaaaa)\n" 4841 " << aaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaa);"); 4842 verifyFormat("Diag(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbb)\n" 4843 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4844 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4845 verifyFormat("SemaRef.Diag(Loc, diag::note_for_range_begin_end)\n" 4846 " << BEF << IsTemplate << Description << E->getType();"); 4847 4848 verifyFormat( 4849 "llvm::errs() << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4850 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 4851 4852 // Incomplete string literal. 4853 EXPECT_EQ("llvm::errs() << \"\n" 4854 " << a;", 4855 format("llvm::errs() << \"\n<<a;")); 4856 4857 verifyFormat("void f() {\n" 4858 " CHECK_EQ(aaaa, (*bbbbbbbbb)->cccccc)\n" 4859 " << \"qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq\";\n" 4860 "}"); 4861 4862 // Handle 'endl'. 4863 verifyFormat("llvm::errs() << aaaaaaaaaaaaaaaaaaaaaa << endl\n" 4864 " << bbbbbbbbbbbbbbbbbbbbbb << endl;"); 4865 verifyFormat("llvm::errs() << endl << bbbbbbbbbbbbbbbbbbbbbb << endl;"); 4866 } 4867 4868 TEST_F(FormatTest, UnderstandsEquals) { 4869 verifyFormat( 4870 "aaaaaaaaaaaaaaaaa =\n" 4871 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4872 verifyFormat( 4873 "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 4874 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}"); 4875 verifyFormat( 4876 "if (a) {\n" 4877 " f();\n" 4878 "} else if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 4879 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n" 4880 "}"); 4881 4882 verifyFormat("if (int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 4883 " 100000000 + 10000000) {\n}"); 4884 } 4885 4886 TEST_F(FormatTest, WrapsAtFunctionCallsIfNecessary) { 4887 verifyFormat("LoooooooooooooooooooooooooooooooooooooongObject\n" 4888 " .looooooooooooooooooooooooooooooooooooooongFunction();"); 4889 4890 verifyFormat("LoooooooooooooooooooooooooooooooooooooongObject\n" 4891 " ->looooooooooooooooooooooooooooooooooooooongFunction();"); 4892 4893 verifyFormat( 4894 "LooooooooooooooooooooooooooooooooongObject->shortFunction(Parameter1,\n" 4895 " Parameter2);"); 4896 4897 verifyFormat( 4898 "ShortObject->shortFunction(\n" 4899 " LooooooooooooooooooooooooooooooooooooooooooooooongParameter1,\n" 4900 " LooooooooooooooooooooooooooooooooooooooooooooooongParameter2);"); 4901 4902 verifyFormat("loooooooooooooongFunction(\n" 4903 " LoooooooooooooongObject->looooooooooooooooongFunction());"); 4904 4905 verifyFormat( 4906 "function(LoooooooooooooooooooooooooooooooooooongObject\n" 4907 " ->loooooooooooooooooooooooooooooooooooooooongFunction());"); 4908 4909 verifyFormat("EXPECT_CALL(SomeObject, SomeFunction(Parameter))\n" 4910 " .WillRepeatedly(Return(SomeValue));"); 4911 verifyFormat("void f() {\n" 4912 " EXPECT_CALL(SomeObject, SomeFunction(Parameter))\n" 4913 " .Times(2)\n" 4914 " .WillRepeatedly(Return(SomeValue));\n" 4915 "}"); 4916 verifyFormat("SomeMap[std::pair(aaaaaaaaaaaa, bbbbbbbbbbbbbbb)].insert(\n" 4917 " ccccccccccccccccccccccc);"); 4918 verifyFormat("aaaaa(aaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4919 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4920 " .aaaaa(aaaaa),\n" 4921 " aaaaaaaaaaaaaaaaaaaaa);"); 4922 verifyFormat("void f() {\n" 4923 " aaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4924 " aaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa)->aaaaaaaaa());\n" 4925 "}"); 4926 verifyFormat("aaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4927 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4928 " .aaaaaaaaaaaaaaa(aa(aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4929 " aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4930 " aaaaaaaaaaaaaaaaaaaaaaaaaaa));"); 4931 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4932 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4933 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4934 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()) {\n" 4935 "}"); 4936 4937 // Here, it is not necessary to wrap at "." or "->". 4938 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaa) ||\n" 4939 " aaaa.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}"); 4940 verifyFormat( 4941 "aaaaaaaaaaa->aaaaaaaaa(\n" 4942 " aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4943 " aaaaaaaaaaaaaaaaaa->aaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa));\n"); 4944 4945 verifyFormat( 4946 "aaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4947 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa().aaaaaaaaaaaaaaaaa());"); 4948 verifyFormat("a->aaaaaa()->aaaaaaaaaaa(aaaaaaaa()->aaaaaa()->aaaaa() *\n" 4949 " aaaaaaaaa()->aaaaaa()->aaaaa());"); 4950 verifyFormat("a->aaaaaa()->aaaaaaaaaaa(aaaaaaaa()->aaaaaa()->aaaaa() ||\n" 4951 " aaaaaaaaa()->aaaaaa()->aaaaa());"); 4952 4953 verifyFormat("aaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4954 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4955 " .a();"); 4956 4957 FormatStyle NoBinPacking = getLLVMStyle(); 4958 NoBinPacking.BinPackParameters = false; 4959 verifyFormat("aaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaa)\n" 4960 " .aaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaa)\n" 4961 " .aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaa,\n" 4962 " aaaaaaaaaaaaaaaaaaa,\n" 4963 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4964 NoBinPacking); 4965 4966 // If there is a subsequent call, change to hanging indentation. 4967 verifyFormat( 4968 "aaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4969 " aaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa))\n" 4970 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 4971 verifyFormat( 4972 "aaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4973 " aaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa));"); 4974 verifyFormat("aaaaaaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4975 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4976 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 4977 verifyFormat("aaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4978 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4979 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa());"); 4980 } 4981 4982 TEST_F(FormatTest, WrapsTemplateDeclarations) { 4983 verifyFormat("template <typename T>\n" 4984 "virtual void loooooooooooongFunction(int Param1, int Param2);"); 4985 verifyFormat("template <typename T>\n" 4986 "// T should be one of {A, B}.\n" 4987 "virtual void loooooooooooongFunction(int Param1, int Param2);"); 4988 verifyFormat( 4989 "template <typename T>\n" 4990 "using comment_to_xml_conversion = comment_to_xml_conversion<T, int>;"); 4991 verifyFormat("template <typename T>\n" 4992 "void f(int Paaaaaaaaaaaaaaaaaaaaaaaaaaaaaaram1,\n" 4993 " int Paaaaaaaaaaaaaaaaaaaaaaaaaaaaaaram2);"); 4994 verifyFormat( 4995 "template <typename T>\n" 4996 "void looooooooooooooooooooongFunction(int Paaaaaaaaaaaaaaaaaaaaram1,\n" 4997 " int Paaaaaaaaaaaaaaaaaaaaram2);"); 4998 verifyFormat( 4999 "template <typename T>\n" 5000 "aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaa,\n" 5001 " aaaaaaaaaaaaaaaaaaaaaaaaaa<T>::aaaaaaaaaa,\n" 5002 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 5003 verifyFormat("template <typename T>\n" 5004 "void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5005 " int aaaaaaaaaaaaaaaaaaaaaa);"); 5006 verifyFormat( 5007 "template <typename T1, typename T2 = char, typename T3 = char,\n" 5008 " typename T4 = char>\n" 5009 "void f();"); 5010 verifyFormat("template <typename aaaaaaaaaaa, typename bbbbbbbbbbbbb,\n" 5011 " template <typename> class cccccccccccccccccccccc,\n" 5012 " typename ddddddddddddd>\n" 5013 "class C {};"); 5014 verifyFormat( 5015 "aaaaaaaaaaaaaaaaaaaaaaaa<aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa>(\n" 5016 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 5017 5018 verifyFormat("void f() {\n" 5019 " a<aaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaa>(\n" 5020 " a(aaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaa));\n" 5021 "}"); 5022 5023 verifyFormat("template <typename T> class C {};"); 5024 verifyFormat("template <typename T> void f();"); 5025 verifyFormat("template <typename T> void f() {}"); 5026 verifyFormat( 5027 "aaaaaaaaaaaaa<aaaaaaaaaa, aaaaaaaaaaa,\n" 5028 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5029 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa> *aaaa =\n" 5030 " new aaaaaaaaaaaaa<aaaaaaaaaa, aaaaaaaaaaa,\n" 5031 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5032 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>(\n" 5033 " bbbbbbbbbbbbbbbbbbbbbbbb);", 5034 getLLVMStyleWithColumns(72)); 5035 EXPECT_EQ("static_cast<A< //\n" 5036 " B> *>(\n" 5037 "\n" 5038 " );", 5039 format("static_cast<A<//\n" 5040 " B>*>(\n" 5041 "\n" 5042 " );")); 5043 verifyFormat("int aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5044 " const typename aaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaa);"); 5045 5046 FormatStyle AlwaysBreak = getLLVMStyle(); 5047 AlwaysBreak.AlwaysBreakTemplateDeclarations = true; 5048 verifyFormat("template <typename T>\nclass C {};", AlwaysBreak); 5049 verifyFormat("template <typename T>\nvoid f();", AlwaysBreak); 5050 verifyFormat("template <typename T>\nvoid f() {}", AlwaysBreak); 5051 verifyFormat("void aaaaaaaaaaaaaaaaaaa<aaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5052 " bbbbbbbbbbbbbbbbbbbbbbbbbbbb>(\n" 5053 " ccccccccccccccccccccccccccccccccccccccccccccccc);"); 5054 verifyFormat("template <template <typename> class Fooooooo,\n" 5055 " template <typename> class Baaaaaaar>\n" 5056 "struct C {};", 5057 AlwaysBreak); 5058 verifyFormat("template <typename T> // T can be A, B or C.\n" 5059 "struct C {};", 5060 AlwaysBreak); 5061 } 5062 5063 TEST_F(FormatTest, WrapsAtNestedNameSpecifiers) { 5064 verifyFormat( 5065 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 5066 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 5067 verifyFormat( 5068 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 5069 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5070 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa());"); 5071 5072 // FIXME: Should we have the extra indent after the second break? 5073 verifyFormat( 5074 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 5075 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 5076 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 5077 5078 verifyFormat( 5079 "aaaaaaaaaaaaaaa(bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb::\n" 5080 " cccccccccccccccccccccccccccccccccccccccccccccc());"); 5081 5082 // Breaking at nested name specifiers is generally not desirable. 5083 verifyFormat( 5084 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5085 " aaaaaaaaaaaaaaaaaaaaaaa);"); 5086 5087 verifyFormat( 5088 "aaaaaaaaaaaaaaaaaa(aaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 5089 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5090 " aaaaaaaaaaaaaaaaaaaaa);", 5091 getLLVMStyleWithColumns(74)); 5092 5093 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 5094 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5095 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 5096 } 5097 5098 TEST_F(FormatTest, UnderstandsTemplateParameters) { 5099 verifyFormat("A<int> a;"); 5100 verifyFormat("A<A<A<int>>> a;"); 5101 verifyFormat("A<A<A<int, 2>, 3>, 4> a;"); 5102 verifyFormat("bool x = a < 1 || 2 > a;"); 5103 verifyFormat("bool x = 5 < f<int>();"); 5104 verifyFormat("bool x = f<int>() > 5;"); 5105 verifyFormat("bool x = 5 < a<int>::x;"); 5106 verifyFormat("bool x = a < 4 ? a > 2 : false;"); 5107 verifyFormat("bool x = f() ? a < 2 : a > 2;"); 5108 5109 verifyGoogleFormat("A<A<int>> a;"); 5110 verifyGoogleFormat("A<A<A<int>>> a;"); 5111 verifyGoogleFormat("A<A<A<A<int>>>> a;"); 5112 verifyGoogleFormat("A<A<int> > a;"); 5113 verifyGoogleFormat("A<A<A<int> > > a;"); 5114 verifyGoogleFormat("A<A<A<A<int> > > > a;"); 5115 verifyGoogleFormat("A<::A<int>> a;"); 5116 verifyGoogleFormat("A<::A> a;"); 5117 verifyGoogleFormat("A< ::A> a;"); 5118 verifyGoogleFormat("A< ::A<int> > a;"); 5119 EXPECT_EQ("A<A<A<A>>> a;", format("A<A<A<A> >> a;", getGoogleStyle())); 5120 EXPECT_EQ("A<A<A<A>>> a;", format("A<A<A<A>> > a;", getGoogleStyle())); 5121 EXPECT_EQ("A<::A<int>> a;", format("A< ::A<int>> a;", getGoogleStyle())); 5122 EXPECT_EQ("A<::A<int>> a;", format("A<::A<int> > a;", getGoogleStyle())); 5123 5124 verifyFormat("A<A>> a;", getChromiumStyle(FormatStyle::LK_Cpp)); 5125 5126 verifyFormat("test >> a >> b;"); 5127 verifyFormat("test << a >> b;"); 5128 5129 verifyFormat("f<int>();"); 5130 verifyFormat("template <typename T> void f() {}"); 5131 verifyFormat("struct A<std::enable_if<sizeof(T2) < sizeof(int32)>::type>;"); 5132 5133 // Not template parameters. 5134 verifyFormat("return a < b && c > d;"); 5135 verifyFormat("void f() {\n" 5136 " while (a < b && c > d) {\n" 5137 " }\n" 5138 "}"); 5139 verifyFormat("template <typename... Types>\n" 5140 "typename enable_if<0 < sizeof...(Types)>::type Foo() {}"); 5141 5142 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5143 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaa >> aaaaa);", 5144 getLLVMStyleWithColumns(60)); 5145 verifyFormat("static_assert(is_convertible<A &&, B>::value, \"AAA\");"); 5146 verifyFormat("Constructor(A... a) : a_(X<A>{std::forward<A>(a)}...) {}"); 5147 } 5148 5149 TEST_F(FormatTest, UnderstandsBinaryOperators) { 5150 verifyFormat("COMPARE(a, ==, b);"); 5151 } 5152 5153 TEST_F(FormatTest, UnderstandsPointersToMembers) { 5154 verifyFormat("int A::*x;"); 5155 verifyFormat("int (S::*func)(void *);"); 5156 verifyFormat("void f() { int (S::*func)(void *); }"); 5157 verifyFormat("typedef bool *(Class::*Member)() const;"); 5158 verifyFormat("void f() {\n" 5159 " (a->*f)();\n" 5160 " a->*x;\n" 5161 " (a.*f)();\n" 5162 " ((*a).*f)();\n" 5163 " a.*x;\n" 5164 "}"); 5165 verifyFormat("void f() {\n" 5166 " (a->*aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)(\n" 5167 " aaaa, bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb);\n" 5168 "}"); 5169 verifyFormat( 5170 "(aaaaaaaaaa->*bbbbbbb)(\n" 5171 " aaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaa));"); 5172 FormatStyle Style = getLLVMStyle(); 5173 Style.PointerAlignment = FormatStyle::PAS_Left; 5174 verifyFormat("typedef bool* (Class::*Member)() const;", Style); 5175 } 5176 5177 TEST_F(FormatTest, UnderstandsUnaryOperators) { 5178 verifyFormat("int a = -2;"); 5179 verifyFormat("f(-1, -2, -3);"); 5180 verifyFormat("a[-1] = 5;"); 5181 verifyFormat("int a = 5 + -2;"); 5182 verifyFormat("if (i == -1) {\n}"); 5183 verifyFormat("if (i != -1) {\n}"); 5184 verifyFormat("if (i > -1) {\n}"); 5185 verifyFormat("if (i < -1) {\n}"); 5186 verifyFormat("++(a->f());"); 5187 verifyFormat("--(a->f());"); 5188 verifyFormat("(a->f())++;"); 5189 verifyFormat("a[42]++;"); 5190 verifyFormat("if (!(a->f())) {\n}"); 5191 5192 verifyFormat("a-- > b;"); 5193 verifyFormat("b ? -a : c;"); 5194 verifyFormat("n * sizeof char16;"); 5195 verifyFormat("n * alignof char16;", getGoogleStyle()); 5196 verifyFormat("sizeof(char);"); 5197 verifyFormat("alignof(char);", getGoogleStyle()); 5198 5199 verifyFormat("return -1;"); 5200 verifyFormat("switch (a) {\n" 5201 "case -1:\n" 5202 " break;\n" 5203 "}"); 5204 verifyFormat("#define X -1"); 5205 verifyFormat("#define X -kConstant"); 5206 5207 verifyFormat("const NSPoint kBrowserFrameViewPatternOffset = {-5, +3};"); 5208 verifyFormat("const NSPoint kBrowserFrameViewPatternOffset = {+5, -3};"); 5209 5210 verifyFormat("int a = /* confusing comment */ -1;"); 5211 // FIXME: The space after 'i' is wrong, but hopefully, this is a rare case. 5212 verifyFormat("int a = i /* confusing comment */++;"); 5213 } 5214 5215 TEST_F(FormatTest, DoesNotIndentRelativeToUnaryOperators) { 5216 verifyFormat("if (!aaaaaaaaaa( // break\n" 5217 " aaaaa)) {\n" 5218 "}"); 5219 verifyFormat("aaaaaaaaaa(!aaaaaaaaaa( // break\n" 5220 " aaaaa));"); 5221 verifyFormat("*aaa = aaaaaaa( // break\n" 5222 " bbbbbb);"); 5223 } 5224 5225 TEST_F(FormatTest, UnderstandsOverloadedOperators) { 5226 verifyFormat("bool operator<();"); 5227 verifyFormat("bool operator>();"); 5228 verifyFormat("bool operator=();"); 5229 verifyFormat("bool operator==();"); 5230 verifyFormat("bool operator!=();"); 5231 verifyFormat("int operator+();"); 5232 verifyFormat("int operator++();"); 5233 verifyFormat("bool operator();"); 5234 verifyFormat("bool operator()();"); 5235 verifyFormat("bool operator[]();"); 5236 verifyFormat("operator bool();"); 5237 verifyFormat("operator int();"); 5238 verifyFormat("operator void *();"); 5239 verifyFormat("operator SomeType<int>();"); 5240 verifyFormat("operator SomeType<int, int>();"); 5241 verifyFormat("operator SomeType<SomeType<int>>();"); 5242 verifyFormat("void *operator new(std::size_t size);"); 5243 verifyFormat("void *operator new[](std::size_t size);"); 5244 verifyFormat("void operator delete(void *ptr);"); 5245 verifyFormat("void operator delete[](void *ptr);"); 5246 verifyFormat("template <typename AAAAAAA, typename BBBBBBB>\n" 5247 "AAAAAAA operator/(const AAAAAAA &a, BBBBBBB &b);"); 5248 5249 verifyFormat( 5250 "ostream &operator<<(ostream &OutputStream,\n" 5251 " SomeReallyLongType WithSomeReallyLongValue);"); 5252 verifyFormat("bool operator<(const aaaaaaaaaaaaaaaaaaaaa &left,\n" 5253 " const aaaaaaaaaaaaaaaaaaaaa &right) {\n" 5254 " return left.group < right.group;\n" 5255 "}"); 5256 verifyFormat("SomeType &operator=(const SomeType &S);"); 5257 verifyFormat("f.template operator()<int>();"); 5258 5259 verifyGoogleFormat("operator void*();"); 5260 verifyGoogleFormat("operator SomeType<SomeType<int>>();"); 5261 verifyGoogleFormat("operator ::A();"); 5262 5263 verifyFormat("using A::operator+;"); 5264 5265 verifyFormat("string // break\n" 5266 "operator()() & {}"); 5267 verifyFormat("string // break\n" 5268 "operator()() && {}"); 5269 } 5270 5271 TEST_F(FormatTest, UnderstandsFunctionRefQualification) { 5272 verifyFormat("Deleted &operator=(const Deleted &)& = default;"); 5273 verifyFormat("Deleted &operator=(const Deleted &)&& = delete;"); 5274 verifyFormat("SomeType MemberFunction(const Deleted &)& = delete;"); 5275 verifyFormat("SomeType MemberFunction(const Deleted &)&& = delete;"); 5276 verifyFormat("Deleted &operator=(const Deleted &)&;"); 5277 verifyFormat("Deleted &operator=(const Deleted &)&&;"); 5278 verifyFormat("SomeType MemberFunction(const Deleted &)&;"); 5279 verifyFormat("SomeType MemberFunction(const Deleted &)&&;"); 5280 5281 verifyGoogleFormat("Deleted& operator=(const Deleted&)& = default;"); 5282 verifyGoogleFormat("SomeType MemberFunction(const Deleted&)& = delete;"); 5283 verifyGoogleFormat("Deleted& operator=(const Deleted&)&;"); 5284 verifyGoogleFormat("SomeType MemberFunction(const Deleted&)&;"); 5285 5286 FormatStyle Spaces = getLLVMStyle(); 5287 Spaces.SpacesInCStyleCastParentheses = true; 5288 verifyFormat("Deleted &operator=(const Deleted &)& = default;", Spaces); 5289 verifyFormat("SomeType MemberFunction(const Deleted &)& = delete;", Spaces); 5290 verifyFormat("Deleted &operator=(const Deleted &)&;", Spaces); 5291 verifyFormat("SomeType MemberFunction(const Deleted &)&;", Spaces); 5292 5293 Spaces.SpacesInCStyleCastParentheses = false; 5294 Spaces.SpacesInParentheses = true; 5295 verifyFormat("Deleted &operator=( const Deleted & )& = default;", Spaces); 5296 verifyFormat("SomeType MemberFunction( const Deleted & )& = delete;", Spaces); 5297 verifyFormat("Deleted &operator=( const Deleted & )&;", Spaces); 5298 verifyFormat("SomeType MemberFunction( const Deleted & )&;", Spaces); 5299 } 5300 5301 TEST_F(FormatTest, UnderstandsNewAndDelete) { 5302 verifyFormat("void f() {\n" 5303 " A *a = new A;\n" 5304 " A *a = new (placement) A;\n" 5305 " delete a;\n" 5306 " delete (A *)a;\n" 5307 "}"); 5308 verifyFormat("new (aaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaa))\n" 5309 " typename aaaaaaaaaaaaaaaaaaaaaaaa();"); 5310 verifyFormat("auto aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 5311 " new (aaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaa))\n" 5312 " typename aaaaaaaaaaaaaaaaaaaaaaaa();"); 5313 verifyFormat("delete[] h->p;"); 5314 } 5315 5316 TEST_F(FormatTest, UnderstandsUsesOfStarAndAmp) { 5317 verifyFormat("int *f(int *a) {}"); 5318 verifyFormat("int main(int argc, char **argv) {}"); 5319 verifyFormat("Test::Test(int b) : a(b * b) {}"); 5320 verifyIndependentOfContext("f(a, *a);"); 5321 verifyFormat("void g() { f(*a); }"); 5322 verifyIndependentOfContext("int a = b * 10;"); 5323 verifyIndependentOfContext("int a = 10 * b;"); 5324 verifyIndependentOfContext("int a = b * c;"); 5325 verifyIndependentOfContext("int a += b * c;"); 5326 verifyIndependentOfContext("int a -= b * c;"); 5327 verifyIndependentOfContext("int a *= b * c;"); 5328 verifyIndependentOfContext("int a /= b * c;"); 5329 verifyIndependentOfContext("int a = *b;"); 5330 verifyIndependentOfContext("int a = *b * c;"); 5331 verifyIndependentOfContext("int a = b * *c;"); 5332 verifyIndependentOfContext("return 10 * b;"); 5333 verifyIndependentOfContext("return *b * *c;"); 5334 verifyIndependentOfContext("return a & ~b;"); 5335 verifyIndependentOfContext("f(b ? *c : *d);"); 5336 verifyIndependentOfContext("int a = b ? *c : *d;"); 5337 verifyIndependentOfContext("*b = a;"); 5338 verifyIndependentOfContext("a * ~b;"); 5339 verifyIndependentOfContext("a * !b;"); 5340 verifyIndependentOfContext("a * +b;"); 5341 verifyIndependentOfContext("a * -b;"); 5342 verifyIndependentOfContext("a * ++b;"); 5343 verifyIndependentOfContext("a * --b;"); 5344 verifyIndependentOfContext("a[4] * b;"); 5345 verifyIndependentOfContext("a[a * a] = 1;"); 5346 verifyIndependentOfContext("f() * b;"); 5347 verifyIndependentOfContext("a * [self dostuff];"); 5348 verifyIndependentOfContext("int x = a * (a + b);"); 5349 verifyIndependentOfContext("(a *)(a + b);"); 5350 verifyIndependentOfContext("*(int *)(p & ~3UL) = 0;"); 5351 verifyIndependentOfContext("int *pa = (int *)&a;"); 5352 verifyIndependentOfContext("return sizeof(int **);"); 5353 verifyIndependentOfContext("return sizeof(int ******);"); 5354 verifyIndependentOfContext("return (int **&)a;"); 5355 verifyIndependentOfContext("f((*PointerToArray)[10]);"); 5356 verifyFormat("void f(Type (*parameter)[10]) {}"); 5357 verifyGoogleFormat("return sizeof(int**);"); 5358 verifyIndependentOfContext("Type **A = static_cast<Type **>(P);"); 5359 verifyGoogleFormat("Type** A = static_cast<Type**>(P);"); 5360 verifyFormat("auto a = [](int **&, int ***) {};"); 5361 verifyFormat("auto PointerBinding = [](const char *S) {};"); 5362 verifyFormat("typedef typeof(int(int, int)) *MyFunc;"); 5363 verifyFormat("[](const decltype(*a) &value) {}"); 5364 verifyIndependentOfContext("typedef void (*f)(int *a);"); 5365 verifyIndependentOfContext("int i{a * b};"); 5366 verifyIndependentOfContext("aaa && aaa->f();"); 5367 verifyIndependentOfContext("int x = ~*p;"); 5368 verifyFormat("Constructor() : a(a), area(width * height) {}"); 5369 verifyFormat("Constructor() : a(a), area(a, width * height) {}"); 5370 verifyGoogleFormat("MACRO Constructor(const int& i) : a(a), b(b) {}"); 5371 verifyFormat("void f() { f(a, c * d); }"); 5372 5373 verifyIndependentOfContext("InvalidRegions[*R] = 0;"); 5374 5375 verifyIndependentOfContext("A<int *> a;"); 5376 verifyIndependentOfContext("A<int **> a;"); 5377 verifyIndependentOfContext("A<int *, int *> a;"); 5378 verifyIndependentOfContext("A<int *[]> a;"); 5379 verifyIndependentOfContext( 5380 "const char *const p = reinterpret_cast<const char *const>(q);"); 5381 verifyIndependentOfContext("A<int **, int **> a;"); 5382 verifyIndependentOfContext("void f(int *a = d * e, int *b = c * d);"); 5383 verifyFormat("for (char **a = b; *a; ++a) {\n}"); 5384 verifyFormat("for (; a && b;) {\n}"); 5385 verifyFormat("bool foo = true && [] { return false; }();"); 5386 5387 verifyFormat( 5388 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5389 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa, *aaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 5390 5391 verifyGoogleFormat("**outparam = 1;"); 5392 verifyGoogleFormat("*outparam = a * b;"); 5393 verifyGoogleFormat("int main(int argc, char** argv) {}"); 5394 verifyGoogleFormat("A<int*> a;"); 5395 verifyGoogleFormat("A<int**> a;"); 5396 verifyGoogleFormat("A<int*, int*> a;"); 5397 verifyGoogleFormat("A<int**, int**> a;"); 5398 verifyGoogleFormat("f(b ? *c : *d);"); 5399 verifyGoogleFormat("int a = b ? *c : *d;"); 5400 verifyGoogleFormat("Type* t = **x;"); 5401 verifyGoogleFormat("Type* t = *++*x;"); 5402 verifyGoogleFormat("*++*x;"); 5403 verifyGoogleFormat("Type* t = const_cast<T*>(&*x);"); 5404 verifyGoogleFormat("Type* t = x++ * y;"); 5405 verifyGoogleFormat( 5406 "const char* const p = reinterpret_cast<const char* const>(q);"); 5407 verifyGoogleFormat("void f(int i = 0, SomeType** temps = NULL);"); 5408 verifyGoogleFormat("void f(Bar* a = nullptr, Bar* b);"); 5409 verifyGoogleFormat("template <typename T>\n" 5410 "void f(int i = 0, SomeType** temps = NULL);"); 5411 5412 FormatStyle Left = getLLVMStyle(); 5413 Left.PointerAlignment = FormatStyle::PAS_Left; 5414 verifyFormat("x = *a(x) = *a(y);", Left); 5415 5416 verifyIndependentOfContext("a = *(x + y);"); 5417 verifyIndependentOfContext("a = &(x + y);"); 5418 verifyIndependentOfContext("*(x + y).call();"); 5419 verifyIndependentOfContext("&(x + y)->call();"); 5420 verifyFormat("void f() { &(*I).first; }"); 5421 5422 verifyIndependentOfContext("f(b * /* confusing comment */ ++c);"); 5423 verifyFormat( 5424 "int *MyValues = {\n" 5425 " *A, // Operator detection might be confused by the '{'\n" 5426 " *BB // Operator detection might be confused by previous comment\n" 5427 "};"); 5428 5429 verifyIndependentOfContext("if (int *a = &b)"); 5430 verifyIndependentOfContext("if (int &a = *b)"); 5431 verifyIndependentOfContext("if (a & b[i])"); 5432 verifyIndependentOfContext("if (a::b::c::d & b[i])"); 5433 verifyIndependentOfContext("if (*b[i])"); 5434 verifyIndependentOfContext("if (int *a = (&b))"); 5435 verifyIndependentOfContext("while (int *a = &b)"); 5436 verifyIndependentOfContext("size = sizeof *a;"); 5437 verifyIndependentOfContext("if (a && (b = c))"); 5438 verifyFormat("void f() {\n" 5439 " for (const int &v : Values) {\n" 5440 " }\n" 5441 "}"); 5442 verifyFormat("for (int i = a * a; i < 10; ++i) {\n}"); 5443 verifyFormat("for (int i = 0; i < a * a; ++i) {\n}"); 5444 verifyGoogleFormat("for (int i = 0; i * 2 < z; i *= 2) {\n}"); 5445 5446 verifyFormat("#define A (!a * b)"); 5447 verifyFormat("#define MACRO \\\n" 5448 " int *i = a * b; \\\n" 5449 " void f(a *b);", 5450 getLLVMStyleWithColumns(19)); 5451 5452 verifyIndependentOfContext("A = new SomeType *[Length];"); 5453 verifyIndependentOfContext("A = new SomeType *[Length]();"); 5454 verifyIndependentOfContext("T **t = new T *;"); 5455 verifyIndependentOfContext("T **t = new T *();"); 5456 verifyGoogleFormat("A = new SomeType*[Length]();"); 5457 verifyGoogleFormat("A = new SomeType*[Length];"); 5458 verifyGoogleFormat("T** t = new T*;"); 5459 verifyGoogleFormat("T** t = new T*();"); 5460 5461 FormatStyle PointerLeft = getLLVMStyle(); 5462 PointerLeft.PointerAlignment = FormatStyle::PAS_Left; 5463 verifyFormat("delete *x;", PointerLeft); 5464 verifyFormat("STATIC_ASSERT((a & b) == 0);"); 5465 verifyFormat("STATIC_ASSERT(0 == (a & b));"); 5466 verifyFormat("template <bool a, bool b> " 5467 "typename t::if<x && y>::type f() {}"); 5468 verifyFormat("template <int *y> f() {}"); 5469 verifyFormat("vector<int *> v;"); 5470 verifyFormat("vector<int *const> v;"); 5471 verifyFormat("vector<int *const **const *> v;"); 5472 verifyFormat("vector<int *volatile> v;"); 5473 verifyFormat("vector<a * b> v;"); 5474 verifyFormat("foo<b && false>();"); 5475 verifyFormat("foo<b & 1>();"); 5476 verifyFormat("decltype(*::std::declval<const T &>()) void F();"); 5477 verifyFormat( 5478 "template <class T, class = typename std::enable_if<\n" 5479 " std::is_integral<T>::value &&\n" 5480 " (sizeof(T) > 1 || sizeof(T) < 8)>::type>\n" 5481 "void F();", 5482 getLLVMStyleWithColumns(76)); 5483 verifyFormat( 5484 "template <class T,\n" 5485 " class = typename ::std::enable_if<\n" 5486 " ::std::is_array<T>{} && ::std::is_array<T>{}>::type>\n" 5487 "void F();", 5488 getGoogleStyleWithColumns(68)); 5489 5490 verifyIndependentOfContext("MACRO(int *i);"); 5491 verifyIndependentOfContext("MACRO(auto *a);"); 5492 verifyIndependentOfContext("MACRO(const A *a);"); 5493 verifyIndependentOfContext("MACRO('0' <= c && c <= '9');"); 5494 // FIXME: Is there a way to make this work? 5495 // verifyIndependentOfContext("MACRO(A *a);"); 5496 5497 verifyFormat("DatumHandle const *operator->() const { return input_; }"); 5498 5499 EXPECT_EQ("#define OP(x) \\\n" 5500 " ostream &operator<<(ostream &s, const A &a) { \\\n" 5501 " return s << a.DebugString(); \\\n" 5502 " }", 5503 format("#define OP(x) \\\n" 5504 " ostream &operator<<(ostream &s, const A &a) { \\\n" 5505 " return s << a.DebugString(); \\\n" 5506 " }", 5507 getLLVMStyleWithColumns(50))); 5508 5509 // FIXME: We cannot handle this case yet; we might be able to figure out that 5510 // foo<x> d > v; doesn't make sense. 5511 verifyFormat("foo<a<b && c> d> v;"); 5512 5513 FormatStyle PointerMiddle = getLLVMStyle(); 5514 PointerMiddle.PointerAlignment = FormatStyle::PAS_Middle; 5515 verifyFormat("delete *x;", PointerMiddle); 5516 verifyFormat("int * x;", PointerMiddle); 5517 verifyFormat("template <int * y> f() {}", PointerMiddle); 5518 verifyFormat("int * f(int * a) {}", PointerMiddle); 5519 verifyFormat("int main(int argc, char ** argv) {}", PointerMiddle); 5520 verifyFormat("Test::Test(int b) : a(b * b) {}", PointerMiddle); 5521 verifyFormat("A<int *> a;", PointerMiddle); 5522 verifyFormat("A<int **> a;", PointerMiddle); 5523 verifyFormat("A<int *, int *> a;", PointerMiddle); 5524 verifyFormat("A<int * []> a;", PointerMiddle); 5525 verifyFormat("A = new SomeType *[Length]();", PointerMiddle); 5526 verifyFormat("A = new SomeType *[Length];", PointerMiddle); 5527 verifyFormat("T ** t = new T *;", PointerMiddle); 5528 } 5529 5530 TEST_F(FormatTest, UnderstandsAttributes) { 5531 verifyFormat("SomeType s __attribute__((unused)) (InitValue);"); 5532 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa __attribute__((unused))\n" 5533 "aaaaaaaaaaaaaaaaaaaaaaa(int i);"); 5534 } 5535 5536 TEST_F(FormatTest, UnderstandsEllipsis) { 5537 verifyFormat("int printf(const char *fmt, ...);"); 5538 verifyFormat("template <class... Ts> void Foo(Ts... ts) { Foo(ts...); }"); 5539 verifyFormat("template <class... Ts> void Foo(Ts *... ts) {}"); 5540 5541 FormatStyle PointersLeft = getLLVMStyle(); 5542 PointersLeft.PointerAlignment = FormatStyle::PAS_Left; 5543 verifyFormat("template <class... Ts> void Foo(Ts*... ts) {}", PointersLeft); 5544 } 5545 5546 TEST_F(FormatTest, AdaptivelyFormatsPointersAndReferences) { 5547 EXPECT_EQ("int *a;\n" 5548 "int *a;\n" 5549 "int *a;", 5550 format("int *a;\n" 5551 "int* a;\n" 5552 "int *a;", 5553 getGoogleStyle())); 5554 EXPECT_EQ("int* a;\n" 5555 "int* a;\n" 5556 "int* a;", 5557 format("int* a;\n" 5558 "int* a;\n" 5559 "int *a;", 5560 getGoogleStyle())); 5561 EXPECT_EQ("int *a;\n" 5562 "int *a;\n" 5563 "int *a;", 5564 format("int *a;\n" 5565 "int * a;\n" 5566 "int * a;", 5567 getGoogleStyle())); 5568 } 5569 5570 TEST_F(FormatTest, UnderstandsRvalueReferences) { 5571 verifyFormat("int f(int &&a) {}"); 5572 verifyFormat("int f(int a, char &&b) {}"); 5573 verifyFormat("void f() { int &&a = b; }"); 5574 verifyGoogleFormat("int f(int a, char&& b) {}"); 5575 verifyGoogleFormat("void f() { int&& a = b; }"); 5576 5577 verifyIndependentOfContext("A<int &&> a;"); 5578 verifyIndependentOfContext("A<int &&, int &&> a;"); 5579 verifyGoogleFormat("A<int&&> a;"); 5580 verifyGoogleFormat("A<int&&, int&&> a;"); 5581 5582 // Not rvalue references: 5583 verifyFormat("template <bool B, bool C> class A {\n" 5584 " static_assert(B && C, \"Something is wrong\");\n" 5585 "};"); 5586 verifyGoogleFormat("#define IF(a, b, c) if (a && (b == c))"); 5587 verifyGoogleFormat("#define WHILE(a, b, c) while (a && (b == c))"); 5588 verifyFormat("#define A(a, b) (a && b)"); 5589 } 5590 5591 TEST_F(FormatTest, FormatsBinaryOperatorsPrecedingEquals) { 5592 verifyFormat("void f() {\n" 5593 " x[aaaaaaaaa -\n" 5594 " b] = 23;\n" 5595 "}", 5596 getLLVMStyleWithColumns(15)); 5597 } 5598 5599 TEST_F(FormatTest, FormatsCasts) { 5600 verifyFormat("Type *A = static_cast<Type *>(P);"); 5601 verifyFormat("Type *A = (Type *)P;"); 5602 verifyFormat("Type *A = (vector<Type *, int *>)P;"); 5603 verifyFormat("int a = (int)(2.0f);"); 5604 verifyFormat("int a = (int)2.0f;"); 5605 verifyFormat("x[(int32)y];"); 5606 verifyFormat("x = (int32)y;"); 5607 verifyFormat("#define AA(X) sizeof(((X *)NULL)->a)"); 5608 verifyFormat("int a = (int)*b;"); 5609 verifyFormat("int a = (int)2.0f;"); 5610 verifyFormat("int a = (int)~0;"); 5611 verifyFormat("int a = (int)++a;"); 5612 verifyFormat("int a = (int)sizeof(int);"); 5613 verifyFormat("int a = (int)+2;"); 5614 verifyFormat("my_int a = (my_int)2.0f;"); 5615 verifyFormat("my_int a = (my_int)sizeof(int);"); 5616 verifyFormat("return (my_int)aaa;"); 5617 verifyFormat("#define x ((int)-1)"); 5618 verifyFormat("#define LENGTH(x, y) (x) - (y) + 1"); 5619 verifyFormat("#define p(q) ((int *)&q)"); 5620 verifyFormat("fn(a)(b) + 1;"); 5621 5622 verifyFormat("void f() { my_int a = (my_int)*b; }"); 5623 verifyFormat("void f() { return P ? (my_int)*P : (my_int)0; }"); 5624 verifyFormat("my_int a = (my_int)~0;"); 5625 verifyFormat("my_int a = (my_int)++a;"); 5626 verifyFormat("my_int a = (my_int)-2;"); 5627 verifyFormat("my_int a = (my_int)1;"); 5628 verifyFormat("my_int a = (my_int *)1;"); 5629 verifyFormat("my_int a = (const my_int)-1;"); 5630 verifyFormat("my_int a = (const my_int *)-1;"); 5631 verifyFormat("my_int a = (my_int)(my_int)-1;"); 5632 5633 // FIXME: single value wrapped with paren will be treated as cast. 5634 verifyFormat("void f(int i = (kValue)*kMask) {}"); 5635 5636 verifyFormat("{ (void)F; }"); 5637 5638 // Don't break after a cast's 5639 verifyFormat("int aaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 5640 " (aaaaaaaaaaaaaaaaaaaaaaaaaa *)(aaaaaaaaaaaaaaaaaaaaaa +\n" 5641 " bbbbbbbbbbbbbbbbbbbbbb);"); 5642 5643 // These are not casts. 5644 verifyFormat("void f(int *) {}"); 5645 verifyFormat("f(foo)->b;"); 5646 verifyFormat("f(foo).b;"); 5647 verifyFormat("f(foo)(b);"); 5648 verifyFormat("f(foo)[b];"); 5649 verifyFormat("[](foo) { return 4; }(bar);"); 5650 verifyFormat("(*funptr)(foo)[4];"); 5651 verifyFormat("funptrs[4](foo)[4];"); 5652 verifyFormat("void f(int *);"); 5653 verifyFormat("void f(int *) = 0;"); 5654 verifyFormat("void f(SmallVector<int>) {}"); 5655 verifyFormat("void f(SmallVector<int>);"); 5656 verifyFormat("void f(SmallVector<int>) = 0;"); 5657 verifyFormat("void f(int i = (kA * kB) & kMask) {}"); 5658 verifyFormat("int a = sizeof(int) * b;"); 5659 verifyFormat("int a = alignof(int) * b;", getGoogleStyle()); 5660 verifyFormat("template <> void f<int>(int i) SOME_ANNOTATION;"); 5661 verifyFormat("f(\"%\" SOME_MACRO(ll) \"d\");"); 5662 verifyFormat("aaaaa &operator=(const aaaaa &) LLVM_DELETED_FUNCTION;"); 5663 5664 // These are not casts, but at some point were confused with casts. 5665 verifyFormat("virtual void foo(int *) override;"); 5666 verifyFormat("virtual void foo(char &) const;"); 5667 verifyFormat("virtual void foo(int *a, char *) const;"); 5668 verifyFormat("int a = sizeof(int *) + b;"); 5669 verifyFormat("int a = alignof(int *) + b;", getGoogleStyle()); 5670 5671 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *foo = (aaaaaaaaaaaaaaaaa *)\n" 5672 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;"); 5673 // FIXME: The indentation here is not ideal. 5674 verifyFormat( 5675 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5676 " [bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb] = (*cccccccccccccccc)\n" 5677 " [dddddddddddddddddddddddddddddddddddddddddddddddddddddddd];"); 5678 } 5679 5680 TEST_F(FormatTest, FormatsFunctionTypes) { 5681 verifyFormat("A<bool()> a;"); 5682 verifyFormat("A<SomeType()> a;"); 5683 verifyFormat("A<void (*)(int, std::string)> a;"); 5684 verifyFormat("A<void *(int)>;"); 5685 verifyFormat("void *(*a)(int *, SomeType *);"); 5686 verifyFormat("int (*func)(void *);"); 5687 verifyFormat("void f() { int (*func)(void *); }"); 5688 verifyFormat("template <class CallbackClass>\n" 5689 "using MyCallback = void (CallbackClass::*)(SomeObject *Data);"); 5690 5691 verifyGoogleFormat("A<void*(int*, SomeType*)>;"); 5692 verifyGoogleFormat("void* (*a)(int);"); 5693 verifyGoogleFormat( 5694 "template <class CallbackClass>\n" 5695 "using MyCallback = void (CallbackClass::*)(SomeObject* Data);"); 5696 5697 // Other constructs can look somewhat like function types: 5698 verifyFormat("A<sizeof(*x)> a;"); 5699 verifyFormat("#define DEREF_AND_CALL_F(x) f(*x)"); 5700 verifyFormat("some_var = function(*some_pointer_var)[0];"); 5701 verifyFormat("void f() { function(*some_pointer_var)[0] = 10; }"); 5702 } 5703 5704 TEST_F(FormatTest, FormatsPointersToArrayTypes) { 5705 verifyFormat("A (*foo_)[6];"); 5706 verifyFormat("vector<int> (*foo_)[6];"); 5707 } 5708 5709 TEST_F(FormatTest, BreaksLongVariableDeclarations) { 5710 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n" 5711 " LoooooooooooooooooooooooooooooooooooooooongVariable;"); 5712 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType const\n" 5713 " LoooooooooooooooooooooooooooooooooooooooongVariable;"); 5714 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n" 5715 " *LoooooooooooooooooooooooooooooooooooooooongVariable;"); 5716 5717 // Different ways of ()-initializiation. 5718 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n" 5719 " LoooooooooooooooooooooooooooooooooooooooongVariable(1);"); 5720 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n" 5721 " LoooooooooooooooooooooooooooooooooooooooongVariable(a);"); 5722 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n" 5723 " LoooooooooooooooooooooooooooooooooooooooongVariable({});"); 5724 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n" 5725 " LoooooooooooooooooooooooooooooooooooooongVariable([A a]);"); 5726 } 5727 5728 TEST_F(FormatTest, BreaksLongDeclarations) { 5729 verifyFormat("typedef LoooooooooooooooooooooooooooooooooooooooongType\n" 5730 " AnotherNameForTheLongType;"); 5731 verifyFormat("typedef LongTemplateType<aaaaaaaaaaaaaaaaaaa()>\n" 5732 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 5733 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType\n" 5734 "LoooooooooooooooooooooooooooooooongFunctionDeclaration();"); 5735 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType *\n" 5736 "LoooooooooooooooooooooooooooooooongFunctionDeclaration();"); 5737 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType\n" 5738 "LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}"); 5739 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType MACRO\n" 5740 "LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}"); 5741 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType const\n" 5742 "LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}"); 5743 verifyFormat("decltype(LoooooooooooooooooooooooooooooooooooooooongName)\n" 5744 "LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}"); 5745 FormatStyle Indented = getLLVMStyle(); 5746 Indented.IndentWrappedFunctionNames = true; 5747 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType\n" 5748 " LoooooooooooooooooooooooooooooooongFunctionDeclaration();", 5749 Indented); 5750 verifyFormat( 5751 "LoooooooooooooooooooooooooooooooooooooooongReturnType\n" 5752 " LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}", 5753 Indented); 5754 verifyFormat( 5755 "LoooooooooooooooooooooooooooooooooooooooongReturnType const\n" 5756 " LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}", 5757 Indented); 5758 verifyFormat( 5759 "decltype(LoooooooooooooooooooooooooooooooooooooooongName)\n" 5760 " LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}", 5761 Indented); 5762 5763 // FIXME: Without the comment, this breaks after "(". 5764 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType // break\n" 5765 " (*LoooooooooooooooooooooooooooongFunctionTypeVarialbe)();", 5766 getGoogleStyle()); 5767 5768 verifyFormat("int *someFunction(int LoooooooooooooooooooongParam1,\n" 5769 " int LoooooooooooooooooooongParam2) {}"); 5770 verifyFormat( 5771 "TypeSpecDecl *TypeSpecDecl::Create(ASTContext &C, DeclContext *DC,\n" 5772 " SourceLocation L, IdentifierIn *II,\n" 5773 " Type *T) {}"); 5774 verifyFormat("ReallyLongReturnType<TemplateParam1, TemplateParam2>\n" 5775 "ReallyReaaallyLongFunctionName(\n" 5776 " const std::string &SomeParameter,\n" 5777 " const SomeType<string, SomeOtherTemplateParameter>\n" 5778 " &ReallyReallyLongParameterName,\n" 5779 " const SomeType<string, SomeOtherTemplateParameter>\n" 5780 " &AnotherLongParameterName) {}"); 5781 verifyFormat("template <typename A>\n" 5782 "SomeLoooooooooooooooooooooongType<\n" 5783 " typename some_namespace::SomeOtherType<A>::Type>\n" 5784 "Function() {}"); 5785 5786 verifyGoogleFormat( 5787 "aaaaaaaaaaaaaaaa::aaaaaaaaaaaaaaaa<aaaaaaaaaaaaa, aaaaaaaaaaaa>\n" 5788 " aaaaaaaaaaaaaaaaaaaaaaa;"); 5789 verifyGoogleFormat( 5790 "TypeSpecDecl* TypeSpecDecl::Create(ASTContext& C, DeclContext* DC,\n" 5791 " SourceLocation L) {}"); 5792 verifyGoogleFormat( 5793 "some_namespace::LongReturnType\n" 5794 "long_namespace::SomeVeryLongClass::SomeVeryLongFunction(\n" 5795 " int first_long_parameter, int second_parameter) {}"); 5796 5797 verifyGoogleFormat("template <typename T>\n" 5798 "aaaaaaaa::aaaaa::aaaaaa<T, aaaaaaaaaaaaaaaaaaaaaaaaa>\n" 5799 "aaaaaaaaaaaaaaaaaaaaaaaa<T>::aaaaaaa() {}"); 5800 verifyGoogleFormat("A<A<A>> aaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5801 " int aaaaaaaaaaaaaaaaaaaaaaa);"); 5802 5803 verifyFormat("typedef size_t (*aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)(\n" 5804 " const aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5805 " *aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 5806 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5807 " vector<aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>\n" 5808 " aaaaaaaaaaaaaaaaaaaaaaaa);"); 5809 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 5810 " vector<aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa<\n" 5811 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>>\n" 5812 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 5813 } 5814 5815 TEST_F(FormatTest, FormatsArrays) { 5816 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaa[aaaaaaaaaaaaaaaaaaaaaaaaa]\n" 5817 " [bbbbbbbbbbbbbbbbbbbbbbbbb] = c;"); 5818 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5819 " [bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb] = ccccccccccc;"); 5820 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5821 " [a][bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb] = cccccccc;"); 5822 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 5823 " [aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa]\n" 5824 " [bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb] = ccccccccccc;"); 5825 verifyFormat( 5826 "llvm::outs() << \"aaaaaaaaaaaa: \"\n" 5827 " << (*aaaaaaaiaaaaaaa)[aaaaaaaaaaaaaaaaaaaaaaaaa]\n" 5828 " [aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa];"); 5829 5830 verifyGoogleFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa<int>\n" 5831 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[aaaaaaaaaaaa];"); 5832 verifyFormat( 5833 "aaaaaaaaaaa aaaaaaaaaaaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaa->aaaaaaaaa[0]\n" 5834 " .aaaaaaa[0]\n" 5835 " .aaaaaaaaaaaaaaaaaaaaaa();"); 5836 5837 verifyNoCrash("a[,Y?)]", getLLVMStyleWithColumns(10)); 5838 } 5839 5840 TEST_F(FormatTest, LineStartsWithSpecialCharacter) { 5841 verifyFormat("(a)->b();"); 5842 verifyFormat("--a;"); 5843 } 5844 5845 TEST_F(FormatTest, HandlesIncludeDirectives) { 5846 verifyFormat("#include <string>\n" 5847 "#include <a/b/c.h>\n" 5848 "#include \"a/b/string\"\n" 5849 "#include \"string.h\"\n" 5850 "#include \"string.h\"\n" 5851 "#include <a-a>\n" 5852 "#include < path with space >\n" 5853 "#include \"abc.h\" // this is included for ABC\n" 5854 "#include \"some long include\" // with a comment\n" 5855 "#include \"some very long include paaaaaaaaaaaaaaaaaaaaaaath\"", 5856 getLLVMStyleWithColumns(35)); 5857 EXPECT_EQ("#include \"a.h\"", format("#include \"a.h\"")); 5858 EXPECT_EQ("#include <a>", format("#include<a>")); 5859 5860 verifyFormat("#import <string>"); 5861 verifyFormat("#import <a/b/c.h>"); 5862 verifyFormat("#import \"a/b/string\""); 5863 verifyFormat("#import \"string.h\""); 5864 verifyFormat("#import \"string.h\""); 5865 verifyFormat("#if __has_include(<strstream>)\n" 5866 "#include <strstream>\n" 5867 "#endif"); 5868 5869 verifyFormat("#define MY_IMPORT <a/b>"); 5870 5871 // Protocol buffer definition or missing "#". 5872 verifyFormat("import \"aaaaaaaaaaaaaaaaa/aaaaaaaaaaaaaaa\";", 5873 getLLVMStyleWithColumns(30)); 5874 5875 FormatStyle Style = getLLVMStyle(); 5876 Style.AlwaysBreakBeforeMultilineStrings = true; 5877 Style.ColumnLimit = 0; 5878 verifyFormat("#import \"abc.h\"", Style); 5879 5880 // But 'import' might also be a regular C++ namespace. 5881 verifyFormat("import::SomeFunction(aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5882 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 5883 } 5884 5885 //===----------------------------------------------------------------------===// 5886 // Error recovery tests. 5887 //===----------------------------------------------------------------------===// 5888 5889 TEST_F(FormatTest, IncompleteParameterLists) { 5890 FormatStyle NoBinPacking = getLLVMStyle(); 5891 NoBinPacking.BinPackParameters = false; 5892 verifyFormat("void aaaaaaaaaaaaaaaaaa(int level,\n" 5893 " double *min_x,\n" 5894 " double *max_x,\n" 5895 " double *min_y,\n" 5896 " double *max_y,\n" 5897 " double *min_z,\n" 5898 " double *max_z, ) {}", 5899 NoBinPacking); 5900 } 5901 5902 TEST_F(FormatTest, IncorrectCodeTrailingStuff) { 5903 verifyFormat("void f() { return; }\n42"); 5904 verifyFormat("void f() {\n" 5905 " if (0)\n" 5906 " return;\n" 5907 "}\n" 5908 "42"); 5909 verifyFormat("void f() { return }\n42"); 5910 verifyFormat("void f() {\n" 5911 " if (0)\n" 5912 " return\n" 5913 "}\n" 5914 "42"); 5915 } 5916 5917 TEST_F(FormatTest, IncorrectCodeMissingSemicolon) { 5918 EXPECT_EQ("void f() { return }", format("void f ( ) { return }")); 5919 EXPECT_EQ("void f() {\n" 5920 " if (a)\n" 5921 " return\n" 5922 "}", 5923 format("void f ( ) { if ( a ) return }")); 5924 EXPECT_EQ("namespace N {\n" 5925 "void f()\n" 5926 "}", 5927 format("namespace N { void f() }")); 5928 EXPECT_EQ("namespace N {\n" 5929 "void f() {}\n" 5930 "void g()\n" 5931 "}", 5932 format("namespace N { void f( ) { } void g( ) }")); 5933 } 5934 5935 TEST_F(FormatTest, IndentationWithinColumnLimitNotPossible) { 5936 verifyFormat("int aaaaaaaa =\n" 5937 " // Overlylongcomment\n" 5938 " b;", 5939 getLLVMStyleWithColumns(20)); 5940 verifyFormat("function(\n" 5941 " ShortArgument,\n" 5942 " LoooooooooooongArgument);\n", 5943 getLLVMStyleWithColumns(20)); 5944 } 5945 5946 TEST_F(FormatTest, IncorrectAccessSpecifier) { 5947 verifyFormat("public:"); 5948 verifyFormat("class A {\n" 5949 "public\n" 5950 " void f() {}\n" 5951 "};"); 5952 verifyFormat("public\n" 5953 "int qwerty;"); 5954 verifyFormat("public\n" 5955 "B {}"); 5956 verifyFormat("public\n" 5957 "{}"); 5958 verifyFormat("public\n" 5959 "B { int x; }"); 5960 } 5961 5962 TEST_F(FormatTest, IncorrectCodeUnbalancedBraces) { 5963 verifyFormat("{"); 5964 verifyFormat("#})"); 5965 verifyNoCrash("(/**/[:!] ?[)."); 5966 } 5967 5968 TEST_F(FormatTest, IncorrectCodeDoNoWhile) { 5969 verifyFormat("do {\n}"); 5970 verifyFormat("do {\n}\n" 5971 "f();"); 5972 verifyFormat("do {\n}\n" 5973 "wheeee(fun);"); 5974 verifyFormat("do {\n" 5975 " f();\n" 5976 "}"); 5977 } 5978 5979 TEST_F(FormatTest, IncorrectCodeMissingParens) { 5980 verifyFormat("if {\n foo;\n foo();\n}"); 5981 verifyFormat("switch {\n foo;\n foo();\n}"); 5982 verifyFormat("for {\n foo;\n foo();\n}"); 5983 verifyFormat("while {\n foo;\n foo();\n}"); 5984 verifyFormat("do {\n foo;\n foo();\n} while;"); 5985 } 5986 5987 TEST_F(FormatTest, DoesNotTouchUnwrappedLinesWithErrors) { 5988 verifyFormat("namespace {\n" 5989 "class Foo { Foo (\n" 5990 "};\n" 5991 "} // comment"); 5992 } 5993 5994 TEST_F(FormatTest, IncorrectCodeErrorDetection) { 5995 EXPECT_EQ("{\n {}\n", format("{\n{\n}\n")); 5996 EXPECT_EQ("{\n {}\n", format("{\n {\n}\n")); 5997 EXPECT_EQ("{\n {}\n", format("{\n {\n }\n")); 5998 EXPECT_EQ("{\n {}\n}\n}\n", format("{\n {\n }\n }\n}\n")); 5999 6000 EXPECT_EQ("{\n" 6001 " {\n" 6002 " breakme(\n" 6003 " qwe);\n" 6004 " }\n", 6005 format("{\n" 6006 " {\n" 6007 " breakme(qwe);\n" 6008 "}\n", 6009 getLLVMStyleWithColumns(10))); 6010 } 6011 6012 TEST_F(FormatTest, LayoutCallsInsideBraceInitializers) { 6013 verifyFormat("int x = {\n" 6014 " avariable,\n" 6015 " b(alongervariable)};", 6016 getLLVMStyleWithColumns(25)); 6017 } 6018 6019 TEST_F(FormatTest, LayoutBraceInitializersInReturnStatement) { 6020 verifyFormat("return (a)(b){1, 2, 3};"); 6021 } 6022 6023 TEST_F(FormatTest, LayoutCxx11BraceInitializers) { 6024 verifyFormat("vector<int> x{1, 2, 3, 4};"); 6025 verifyFormat("vector<int> x{\n" 6026 " 1, 2, 3, 4,\n" 6027 "};"); 6028 verifyFormat("vector<T> x{{}, {}, {}, {}};"); 6029 verifyFormat("f({1, 2});"); 6030 verifyFormat("auto v = Foo{-1};"); 6031 verifyFormat("f({1, 2}, {{2, 3}, {4, 5}}, c, {d});"); 6032 verifyFormat("Class::Class : member{1, 2, 3} {}"); 6033 verifyFormat("new vector<int>{1, 2, 3};"); 6034 verifyFormat("new int[3]{1, 2, 3};"); 6035 verifyFormat("new int{1};"); 6036 verifyFormat("return {arg1, arg2};"); 6037 verifyFormat("return {arg1, SomeType{parameter}};"); 6038 verifyFormat("int count = set<int>{f(), g(), h()}.size();"); 6039 verifyFormat("new T{arg1, arg2};"); 6040 verifyFormat("f(MyMap[{composite, key}]);"); 6041 verifyFormat("class Class {\n" 6042 " T member = {arg1, arg2};\n" 6043 "};"); 6044 verifyFormat("vector<int> foo = {::SomeGlobalFunction()};"); 6045 verifyFormat("static_assert(std::is_integral<int>{} + 0, \"\");"); 6046 verifyFormat("int a = std::is_integral<int>{} + 0;"); 6047 6048 verifyFormat("int foo(int i) { return fo1{}(i); }"); 6049 verifyFormat("int foo(int i) { return fo1{}(i); }"); 6050 verifyFormat("auto i = decltype(x){};"); 6051 verifyFormat("std::vector<int> v = {1, 0 /* comment */};"); 6052 verifyFormat("Node n{1, Node{1000}, //\n" 6053 " 2};"); 6054 verifyFormat("Aaaa aaaaaaa{\n" 6055 " {\n" 6056 " aaaa,\n" 6057 " },\n" 6058 "};"); 6059 6060 // In combination with BinPackParameters = false. 6061 FormatStyle NoBinPacking = getLLVMStyle(); 6062 NoBinPacking.BinPackParameters = false; 6063 verifyFormat("const Aaaaaa aaaaa = {aaaaa,\n" 6064 " bbbbb,\n" 6065 " ccccc,\n" 6066 " ddddd,\n" 6067 " eeeee,\n" 6068 " ffffff,\n" 6069 " ggggg,\n" 6070 " hhhhhh,\n" 6071 " iiiiii,\n" 6072 " jjjjjj,\n" 6073 " kkkkkk};", 6074 NoBinPacking); 6075 verifyFormat("const Aaaaaa aaaaa = {\n" 6076 " aaaaa,\n" 6077 " bbbbb,\n" 6078 " ccccc,\n" 6079 " ddddd,\n" 6080 " eeeee,\n" 6081 " ffffff,\n" 6082 " ggggg,\n" 6083 " hhhhhh,\n" 6084 " iiiiii,\n" 6085 " jjjjjj,\n" 6086 " kkkkkk,\n" 6087 "};", 6088 NoBinPacking); 6089 verifyFormat( 6090 "const Aaaaaa aaaaa = {\n" 6091 " aaaaa, bbbbb, ccccc, ddddd, eeeee, ffffff, ggggg, hhhhhh,\n" 6092 " iiiiii, jjjjjj, kkkkkk, aaaaa, bbbbb, ccccc, ddddd, eeeee,\n" 6093 " ffffff, ggggg, hhhhhh, iiiiii, jjjjjj, kkkkkk,\n" 6094 "};", 6095 NoBinPacking); 6096 6097 // FIXME: The alignment of these trailing comments might be bad. Then again, 6098 // this might be utterly useless in real code. 6099 verifyFormat("Constructor::Constructor()\n" 6100 " : some_value{ //\n" 6101 " aaaaaaa, //\n" 6102 " bbbbbbb} {}"); 6103 6104 // In braced lists, the first comment is always assumed to belong to the 6105 // first element. Thus, it can be moved to the next or previous line as 6106 // appropriate. 6107 EXPECT_EQ("function({// First element:\n" 6108 " 1,\n" 6109 " // Second element:\n" 6110 " 2});", 6111 format("function({\n" 6112 " // First element:\n" 6113 " 1,\n" 6114 " // Second element:\n" 6115 " 2});")); 6116 EXPECT_EQ("std::vector<int> MyNumbers{\n" 6117 " // First element:\n" 6118 " 1,\n" 6119 " // Second element:\n" 6120 " 2};", 6121 format("std::vector<int> MyNumbers{// First element:\n" 6122 " 1,\n" 6123 " // Second element:\n" 6124 " 2};", 6125 getLLVMStyleWithColumns(30))); 6126 // A trailing comma should still lead to an enforced line break. 6127 EXPECT_EQ("vector<int> SomeVector = {\n" 6128 " // aaa\n" 6129 " 1, 2,\n" 6130 "};", 6131 format("vector<int> SomeVector = { // aaa\n" 6132 " 1, 2, };")); 6133 6134 FormatStyle ExtraSpaces = getLLVMStyle(); 6135 ExtraSpaces.Cpp11BracedListStyle = false; 6136 ExtraSpaces.ColumnLimit = 75; 6137 verifyFormat("vector<int> x{ 1, 2, 3, 4 };", ExtraSpaces); 6138 verifyFormat("vector<T> x{ {}, {}, {}, {} };", ExtraSpaces); 6139 verifyFormat("f({ 1, 2 });", ExtraSpaces); 6140 verifyFormat("auto v = Foo{ 1 };", ExtraSpaces); 6141 verifyFormat("f({ 1, 2 }, { { 2, 3 }, { 4, 5 } }, c, { d });", ExtraSpaces); 6142 verifyFormat("Class::Class : member{ 1, 2, 3 } {}", ExtraSpaces); 6143 verifyFormat("new vector<int>{ 1, 2, 3 };", ExtraSpaces); 6144 verifyFormat("new int[3]{ 1, 2, 3 };", ExtraSpaces); 6145 verifyFormat("return { arg1, arg2 };", ExtraSpaces); 6146 verifyFormat("return { arg1, SomeType{ parameter } };", ExtraSpaces); 6147 verifyFormat("int count = set<int>{ f(), g(), h() }.size();", ExtraSpaces); 6148 verifyFormat("new T{ arg1, arg2 };", ExtraSpaces); 6149 verifyFormat("f(MyMap[{ composite, key }]);", ExtraSpaces); 6150 verifyFormat("class Class {\n" 6151 " T member = { arg1, arg2 };\n" 6152 "};", 6153 ExtraSpaces); 6154 verifyFormat( 6155 "foo = aaaaaaaaaaa ? vector<int>{ aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 6156 " aaaaaaaaaaaaaaaaaaaa, aaaaa }\n" 6157 " : vector<int>{ bbbbbbbbbbbbbbbbbbbbbbbbbbb,\n" 6158 " bbbbbbbbbbbbbbbbbbbb, bbbbb };", 6159 ExtraSpaces); 6160 verifyFormat("DoSomethingWithVector({} /* No data */);", ExtraSpaces); 6161 verifyFormat("DoSomethingWithVector({ {} /* No data */ }, { { 1, 2 } });", 6162 ExtraSpaces); 6163 verifyFormat( 6164 "someFunction(OtherParam,\n" 6165 " BracedList{ // comment 1 (Forcing interesting break)\n" 6166 " param1, param2,\n" 6167 " // comment 2\n" 6168 " param3, param4 });", 6169 ExtraSpaces); 6170 verifyFormat( 6171 "std::this_thread::sleep_for(\n" 6172 " std::chrono::nanoseconds{ std::chrono::seconds{ 1 } } / 5);", 6173 ExtraSpaces); 6174 verifyFormat( 6175 "std::vector<MyValues> aaaaaaaaaaaaaaaaaaa{\n" 6176 " aaaaaaa, aaaaaaaaaa, aaaaa, aaaaaaaaaaaaaaa, aaa, aaaaaaaaaa, a,\n" 6177 " aaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaa,\n" 6178 " aaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaa, aaaaaaa, a};"); 6179 verifyFormat("vector<int> foo = { ::SomeGlobalFunction() };", ExtraSpaces); 6180 } 6181 6182 TEST_F(FormatTest, FormatsBracedListsInColumnLayout) { 6183 verifyFormat("vector<int> x = {1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6184 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6185 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6186 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6187 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6188 " 1, 22, 333, 4444, 55555, 666666, 7777777};"); 6189 verifyFormat("vector<int> x = {1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6190 " // line comment\n" 6191 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6192 " 1, 22, 333, 4444, 55555,\n" 6193 " // line comment\n" 6194 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6195 " 1, 22, 333, 4444, 55555, 666666, 7777777};"); 6196 verifyFormat( 6197 "vector<int> x = {1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6198 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 6199 " 1, 22, 333, 4444, 55555, 666666, // comment\n" 6200 " 7777777, 1, 22, 333, 4444, 55555, 666666,\n" 6201 " 7777777, 1, 22, 333, 4444, 55555, 666666,\n" 6202 " 7777777, 1, 22, 333, 4444, 55555, 666666,\n" 6203 " 7777777};"); 6204 verifyFormat("static const uint16_t CallerSavedRegs64Bittttt[] = {\n" 6205 " X86::RAX, X86::RDX, X86::RCX, X86::RSI, X86::RDI,\n" 6206 " X86::R8, X86::R9, X86::R10, X86::R11, 0};"); 6207 verifyFormat("vector<int> x = {1, 1, 1, 1,\n" 6208 " 1, 1, 1, 1};", 6209 getLLVMStyleWithColumns(39)); 6210 verifyFormat("vector<int> x = {1, 1, 1, 1,\n" 6211 " 1, 1, 1, 1};", 6212 getLLVMStyleWithColumns(38)); 6213 verifyFormat("vector<int> aaaaaaaaaaaaaaaaaaaaaa = {\n" 6214 " 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1};", 6215 getLLVMStyleWithColumns(43)); 6216 6217 // Trailing commas. 6218 verifyFormat("vector<int> x = {\n" 6219 " 1, 1, 1, 1, 1, 1, 1, 1,\n" 6220 "};", 6221 getLLVMStyleWithColumns(39)); 6222 verifyFormat("vector<int> x = {\n" 6223 " 1, 1, 1, 1, 1, 1, 1, 1, //\n" 6224 "};", 6225 getLLVMStyleWithColumns(39)); 6226 verifyFormat("vector<int> x = {1, 1, 1, 1,\n" 6227 " 1, 1, 1, 1,\n" 6228 " /**/ /**/};", 6229 getLLVMStyleWithColumns(39)); 6230 verifyFormat("return {{aaaaaaaaaaaaaaaaaaaaa},\n" 6231 " {aaaaaaaaaaaaaaaaaaa},\n" 6232 " {aaaaaaaaaaaaaaaaaaaaa},\n" 6233 " {aaaaaaaaaaaaaaaaa}};", 6234 getLLVMStyleWithColumns(60)); 6235 6236 // With nested lists, we should either format one item per line or all nested 6237 // lists one one line. 6238 // FIXME: For some nested lists, we can do better. 6239 verifyFormat( 6240 "SomeStruct my_struct_array = {\n" 6241 " {aaaaaa, aaaaaaaa, aaaaaaaaaa, aaaaaaaaa, aaaaaaaaa, aaaaaaaaaa,\n" 6242 " aaaaaaaaaaaaa, aaaaaaa, aaa},\n" 6243 " {aaa, aaa},\n" 6244 " {aaa, aaa},\n" 6245 " {aaaa, aaaa, aaaa, aaaa, aaaa, aaaa, aaaa, aaa},\n" 6246 " {aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaa,\n" 6247 " aaaaaaaaaaaa, a, aaaaaaaaaa, aaaaaaaaa, aaa}};"); 6248 6249 // No column layout should be used here. 6250 verifyFormat("aaaaaaaaaaaaaaa = {aaaaaaaaaaaaaaaaaaaaaaaaaaa, 0, 0,\n" 6251 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb};"); 6252 6253 verifyNoCrash("a<,"); 6254 } 6255 6256 TEST_F(FormatTest, PullTrivialFunctionDefinitionsIntoSingleLine) { 6257 FormatStyle DoNotMerge = getLLVMStyle(); 6258 DoNotMerge.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_None; 6259 6260 verifyFormat("void f() { return 42; }"); 6261 verifyFormat("void f() {\n" 6262 " return 42;\n" 6263 "}", 6264 DoNotMerge); 6265 verifyFormat("void f() {\n" 6266 " // Comment\n" 6267 "}"); 6268 verifyFormat("{\n" 6269 "#error {\n" 6270 " int a;\n" 6271 "}"); 6272 verifyFormat("{\n" 6273 " int a;\n" 6274 "#error {\n" 6275 "}"); 6276 verifyFormat("void f() {} // comment"); 6277 verifyFormat("void f() { int a; } // comment"); 6278 verifyFormat("void f() {\n" 6279 "} // comment", 6280 DoNotMerge); 6281 verifyFormat("void f() {\n" 6282 " int a;\n" 6283 "} // comment", 6284 DoNotMerge); 6285 verifyFormat("void f() {\n" 6286 "} // comment", 6287 getLLVMStyleWithColumns(15)); 6288 6289 verifyFormat("void f() { return 42; }", getLLVMStyleWithColumns(23)); 6290 verifyFormat("void f() {\n return 42;\n}", getLLVMStyleWithColumns(22)); 6291 6292 verifyFormat("void f() {}", getLLVMStyleWithColumns(11)); 6293 verifyFormat("void f() {\n}", getLLVMStyleWithColumns(10)); 6294 verifyFormat("class C {\n" 6295 " C()\n" 6296 " : iiiiiiii(nullptr),\n" 6297 " kkkkkkk(nullptr),\n" 6298 " mmmmmmm(nullptr),\n" 6299 " nnnnnnn(nullptr) {}\n" 6300 "};", 6301 getGoogleStyle()); 6302 6303 FormatStyle NoColumnLimit = getLLVMStyle(); 6304 NoColumnLimit.ColumnLimit = 0; 6305 EXPECT_EQ("A() : b(0) {}", format("A():b(0){}", NoColumnLimit)); 6306 EXPECT_EQ("class C {\n" 6307 " A() : b(0) {}\n" 6308 "};", 6309 format("class C{A():b(0){}};", NoColumnLimit)); 6310 EXPECT_EQ("A()\n" 6311 " : b(0) {\n" 6312 "}", 6313 format("A()\n:b(0)\n{\n}", NoColumnLimit)); 6314 6315 FormatStyle DoNotMergeNoColumnLimit = NoColumnLimit; 6316 DoNotMergeNoColumnLimit.AllowShortFunctionsOnASingleLine = 6317 FormatStyle::SFS_None; 6318 EXPECT_EQ("A()\n" 6319 " : b(0) {\n" 6320 "}", 6321 format("A():b(0){}", DoNotMergeNoColumnLimit)); 6322 EXPECT_EQ("A()\n" 6323 " : b(0) {\n" 6324 "}", 6325 format("A()\n:b(0)\n{\n}", DoNotMergeNoColumnLimit)); 6326 6327 verifyFormat("#define A \\\n" 6328 " void f() { \\\n" 6329 " int i; \\\n" 6330 " }", 6331 getLLVMStyleWithColumns(20)); 6332 verifyFormat("#define A \\\n" 6333 " void f() { int i; }", 6334 getLLVMStyleWithColumns(21)); 6335 verifyFormat("#define A \\\n" 6336 " void f() { \\\n" 6337 " int i; \\\n" 6338 " } \\\n" 6339 " int j;", 6340 getLLVMStyleWithColumns(22)); 6341 verifyFormat("#define A \\\n" 6342 " void f() { int i; } \\\n" 6343 " int j;", 6344 getLLVMStyleWithColumns(23)); 6345 } 6346 6347 TEST_F(FormatTest, PullInlineFunctionDefinitionsIntoSingleLine) { 6348 FormatStyle MergeInlineOnly = getLLVMStyle(); 6349 MergeInlineOnly.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Inline; 6350 verifyFormat("class C {\n" 6351 " int f() { return 42; }\n" 6352 "};", 6353 MergeInlineOnly); 6354 verifyFormat("int f() {\n" 6355 " return 42;\n" 6356 "}", 6357 MergeInlineOnly); 6358 } 6359 6360 TEST_F(FormatTest, UnderstandContextOfRecordTypeKeywords) { 6361 // Elaborate type variable declarations. 6362 verifyFormat("struct foo a = {bar};\nint n;"); 6363 verifyFormat("class foo a = {bar};\nint n;"); 6364 verifyFormat("union foo a = {bar};\nint n;"); 6365 6366 // Elaborate types inside function definitions. 6367 verifyFormat("struct foo f() {}\nint n;"); 6368 verifyFormat("class foo f() {}\nint n;"); 6369 verifyFormat("union foo f() {}\nint n;"); 6370 6371 // Templates. 6372 verifyFormat("template <class X> void f() {}\nint n;"); 6373 verifyFormat("template <struct X> void f() {}\nint n;"); 6374 verifyFormat("template <union X> void f() {}\nint n;"); 6375 6376 // Actual definitions... 6377 verifyFormat("struct {\n} n;"); 6378 verifyFormat( 6379 "template <template <class T, class Y>, class Z> class X {\n} n;"); 6380 verifyFormat("union Z {\n int n;\n} x;"); 6381 verifyFormat("class MACRO Z {\n} n;"); 6382 verifyFormat("class MACRO(X) Z {\n} n;"); 6383 verifyFormat("class __attribute__(X) Z {\n} n;"); 6384 verifyFormat("class __declspec(X) Z {\n} n;"); 6385 verifyFormat("class A##B##C {\n} n;"); 6386 verifyFormat("class alignas(16) Z {\n} n;"); 6387 6388 // Redefinition from nested context: 6389 verifyFormat("class A::B::C {\n} n;"); 6390 6391 // Template definitions. 6392 verifyFormat( 6393 "template <typename F>\n" 6394 "Matcher(const Matcher<F> &Other,\n" 6395 " typename enable_if_c<is_base_of<F, T>::value &&\n" 6396 " !is_same<F, T>::value>::type * = 0)\n" 6397 " : Implementation(new ImplicitCastMatcher<F>(Other)) {}"); 6398 6399 // FIXME: This is still incorrectly handled at the formatter side. 6400 verifyFormat("template <> struct X < 15, i<3 && 42 < 50 && 33 < 28> {};"); 6401 6402 // FIXME: 6403 // This now gets parsed incorrectly as class definition. 6404 // verifyFormat("class A<int> f() {\n}\nint n;"); 6405 6406 // Elaborate types where incorrectly parsing the structural element would 6407 // break the indent. 6408 verifyFormat("if (true)\n" 6409 " class X x;\n" 6410 "else\n" 6411 " f();\n"); 6412 6413 // This is simply incomplete. Formatting is not important, but must not crash. 6414 verifyFormat("class A:"); 6415 } 6416 6417 TEST_F(FormatTest, DoNotInterfereWithErrorAndWarning) { 6418 EXPECT_EQ("#error Leave all white!!!!! space* alone!\n", 6419 format("#error Leave all white!!!!! space* alone!\n")); 6420 EXPECT_EQ( 6421 "#warning Leave all white!!!!! space* alone!\n", 6422 format("#warning Leave all white!!!!! space* alone!\n")); 6423 EXPECT_EQ("#error 1", format(" # error 1")); 6424 EXPECT_EQ("#warning 1", format(" # warning 1")); 6425 } 6426 6427 TEST_F(FormatTest, FormatHashIfExpressions) { 6428 verifyFormat("#if AAAA && BBBB"); 6429 // FIXME: Come up with a better indentation for #elif. 6430 verifyFormat( 6431 "#if !defined(AAAAAAA) && (defined CCCCCC || defined DDDDDD) && \\\n" 6432 " defined(BBBBBBBB)\n" 6433 "#elif !defined(AAAAAA) && (defined CCCCC || defined DDDDDD) && \\\n" 6434 " defined(BBBBBBBB)\n" 6435 "#endif", 6436 getLLVMStyleWithColumns(65)); 6437 } 6438 6439 TEST_F(FormatTest, MergeHandlingInTheFaceOfPreprocessorDirectives) { 6440 FormatStyle AllowsMergedIf = getGoogleStyle(); 6441 AllowsMergedIf.AllowShortIfStatementsOnASingleLine = true; 6442 verifyFormat("void f() { f(); }\n#error E", AllowsMergedIf); 6443 verifyFormat("if (true) return 42;\n#error E", AllowsMergedIf); 6444 verifyFormat("if (true)\n#error E\n return 42;", AllowsMergedIf); 6445 EXPECT_EQ("if (true) return 42;", 6446 format("if (true)\nreturn 42;", AllowsMergedIf)); 6447 FormatStyle ShortMergedIf = AllowsMergedIf; 6448 ShortMergedIf.ColumnLimit = 25; 6449 verifyFormat("#define A \\\n" 6450 " if (true) return 42;", 6451 ShortMergedIf); 6452 verifyFormat("#define A \\\n" 6453 " f(); \\\n" 6454 " if (true)\n" 6455 "#define B", 6456 ShortMergedIf); 6457 verifyFormat("#define A \\\n" 6458 " f(); \\\n" 6459 " if (true)\n" 6460 "g();", 6461 ShortMergedIf); 6462 verifyFormat("{\n" 6463 "#ifdef A\n" 6464 " // Comment\n" 6465 " if (true) continue;\n" 6466 "#endif\n" 6467 " // Comment\n" 6468 " if (true) continue;\n" 6469 "}", 6470 ShortMergedIf); 6471 ShortMergedIf.ColumnLimit = 29; 6472 verifyFormat("#define A \\\n" 6473 " if (aaaaaaaaaa) return 1; \\\n" 6474 " return 2;", 6475 ShortMergedIf); 6476 ShortMergedIf.ColumnLimit = 28; 6477 verifyFormat("#define A \\\n" 6478 " if (aaaaaaaaaa) \\\n" 6479 " return 1; \\\n" 6480 " return 2;", 6481 ShortMergedIf); 6482 } 6483 6484 TEST_F(FormatTest, BlockCommentsInControlLoops) { 6485 verifyFormat("if (0) /* a comment in a strange place */ {\n" 6486 " f();\n" 6487 "}"); 6488 verifyFormat("if (0) /* a comment in a strange place */ {\n" 6489 " f();\n" 6490 "} /* another comment */ else /* comment #3 */ {\n" 6491 " g();\n" 6492 "}"); 6493 verifyFormat("while (0) /* a comment in a strange place */ {\n" 6494 " f();\n" 6495 "}"); 6496 verifyFormat("for (;;) /* a comment in a strange place */ {\n" 6497 " f();\n" 6498 "}"); 6499 verifyFormat("do /* a comment in a strange place */ {\n" 6500 " f();\n" 6501 "} /* another comment */ while (0);"); 6502 } 6503 6504 TEST_F(FormatTest, BlockComments) { 6505 EXPECT_EQ("/* */ /* */ /* */\n/* */ /* */ /* */", 6506 format("/* *//* */ /* */\n/* *//* */ /* */")); 6507 EXPECT_EQ("/* */ a /* */ b;", format(" /* */ a/* */ b;")); 6508 EXPECT_EQ("#define A /*123*/ \\\n" 6509 " b\n" 6510 "/* */\n" 6511 "someCall(\n" 6512 " parameter);", 6513 format("#define A /*123*/ b\n" 6514 "/* */\n" 6515 "someCall(parameter);", 6516 getLLVMStyleWithColumns(15))); 6517 6518 EXPECT_EQ("#define A\n" 6519 "/* */ someCall(\n" 6520 " parameter);", 6521 format("#define A\n" 6522 "/* */someCall(parameter);", 6523 getLLVMStyleWithColumns(15))); 6524 EXPECT_EQ("/*\n**\n*/", format("/*\n**\n*/")); 6525 EXPECT_EQ("/*\n" 6526 "*\n" 6527 " * aaaaaa\n" 6528 "*aaaaaa\n" 6529 "*/", 6530 format("/*\n" 6531 "*\n" 6532 " * aaaaaa aaaaaa\n" 6533 "*/", 6534 getLLVMStyleWithColumns(10))); 6535 EXPECT_EQ("/*\n" 6536 "**\n" 6537 "* aaaaaa\n" 6538 "*aaaaaa\n" 6539 "*/", 6540 format("/*\n" 6541 "**\n" 6542 "* aaaaaa aaaaaa\n" 6543 "*/", 6544 getLLVMStyleWithColumns(10))); 6545 6546 FormatStyle NoBinPacking = getLLVMStyle(); 6547 NoBinPacking.BinPackParameters = false; 6548 EXPECT_EQ("someFunction(1, /* comment 1 */\n" 6549 " 2, /* comment 2 */\n" 6550 " 3, /* comment 3 */\n" 6551 " aaaa,\n" 6552 " bbbb);", 6553 format("someFunction (1, /* comment 1 */\n" 6554 " 2, /* comment 2 */ \n" 6555 " 3, /* comment 3 */\n" 6556 "aaaa, bbbb );", 6557 NoBinPacking)); 6558 verifyFormat( 6559 "bool aaaaaaaaaaaaa = /* comment: */ aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 6560 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 6561 EXPECT_EQ( 6562 "bool aaaaaaaaaaaaa = /* trailing comment */\n" 6563 " aaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 6564 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaa;", 6565 format( 6566 "bool aaaaaaaaaaaaa = /* trailing comment */\n" 6567 " aaaaaaaaaaaaaaaaaaaaaaaaaaa||aaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 6568 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaa;")); 6569 EXPECT_EQ( 6570 "int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa; /* comment */\n" 6571 "int bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb; /* comment */\n" 6572 "int cccccccccccccccccccccccccccccc; /* comment */\n", 6573 format("int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa; /* comment */\n" 6574 "int bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb; /* comment */\n" 6575 "int cccccccccccccccccccccccccccccc; /* comment */\n")); 6576 6577 verifyFormat("void f(int * /* unused */) {}"); 6578 6579 EXPECT_EQ("/*\n" 6580 " **\n" 6581 " */", 6582 format("/*\n" 6583 " **\n" 6584 " */")); 6585 EXPECT_EQ("/*\n" 6586 " *q\n" 6587 " */", 6588 format("/*\n" 6589 " *q\n" 6590 " */")); 6591 EXPECT_EQ("/*\n" 6592 " * q\n" 6593 " */", 6594 format("/*\n" 6595 " * q\n" 6596 " */")); 6597 EXPECT_EQ("/*\n" 6598 " **/", 6599 format("/*\n" 6600 " **/")); 6601 EXPECT_EQ("/*\n" 6602 " ***/", 6603 format("/*\n" 6604 " ***/")); 6605 } 6606 6607 TEST_F(FormatTest, BlockCommentsInMacros) { 6608 EXPECT_EQ("#define A \\\n" 6609 " { \\\n" 6610 " /* one line */ \\\n" 6611 " someCall();", 6612 format("#define A { \\\n" 6613 " /* one line */ \\\n" 6614 " someCall();", 6615 getLLVMStyleWithColumns(20))); 6616 EXPECT_EQ("#define A \\\n" 6617 " { \\\n" 6618 " /* previous */ \\\n" 6619 " /* one line */ \\\n" 6620 " someCall();", 6621 format("#define A { \\\n" 6622 " /* previous */ \\\n" 6623 " /* one line */ \\\n" 6624 " someCall();", 6625 getLLVMStyleWithColumns(20))); 6626 } 6627 6628 TEST_F(FormatTest, BlockCommentsAtEndOfLine) { 6629 EXPECT_EQ("a = {\n" 6630 " 1111 /* */\n" 6631 "};", 6632 format("a = {1111 /* */\n" 6633 "};", 6634 getLLVMStyleWithColumns(15))); 6635 EXPECT_EQ("a = {\n" 6636 " 1111 /* */\n" 6637 "};", 6638 format("a = {1111 /* */\n" 6639 "};", 6640 getLLVMStyleWithColumns(15))); 6641 6642 // FIXME: The formatting is still wrong here. 6643 EXPECT_EQ("a = {\n" 6644 " 1111 /* a\n" 6645 " */\n" 6646 "};", 6647 format("a = {1111 /* a */\n" 6648 "};", 6649 getLLVMStyleWithColumns(15))); 6650 } 6651 6652 TEST_F(FormatTest, IndentLineCommentsInStartOfBlockAtEndOfFile) { 6653 // FIXME: This is not what we want... 6654 verifyFormat("{\n" 6655 "// a" 6656 "// b"); 6657 } 6658 6659 TEST_F(FormatTest, FormatStarDependingOnContext) { 6660 verifyFormat("void f(int *a);"); 6661 verifyFormat("void f() { f(fint * b); }"); 6662 verifyFormat("class A {\n void f(int *a);\n};"); 6663 verifyFormat("class A {\n int *a;\n};"); 6664 verifyFormat("namespace a {\n" 6665 "namespace b {\n" 6666 "class A {\n" 6667 " void f() {}\n" 6668 " int *a;\n" 6669 "};\n" 6670 "}\n" 6671 "}"); 6672 } 6673 6674 TEST_F(FormatTest, SpecialTokensAtEndOfLine) { 6675 verifyFormat("while"); 6676 verifyFormat("operator"); 6677 } 6678 6679 //===----------------------------------------------------------------------===// 6680 // Objective-C tests. 6681 //===----------------------------------------------------------------------===// 6682 6683 TEST_F(FormatTest, FormatForObjectiveCMethodDecls) { 6684 verifyFormat("- (void)sendAction:(SEL)aSelector to:(BOOL)anObject;"); 6685 EXPECT_EQ("- (NSUInteger)indexOfObject:(id)anObject;", 6686 format("-(NSUInteger)indexOfObject:(id)anObject;")); 6687 EXPECT_EQ("- (NSInteger)Mthod1;", format("-(NSInteger)Mthod1;")); 6688 EXPECT_EQ("+ (id)Mthod2;", format("+(id)Mthod2;")); 6689 EXPECT_EQ("- (NSInteger)Method3:(id)anObject;", 6690 format("-(NSInteger)Method3:(id)anObject;")); 6691 EXPECT_EQ("- (NSInteger)Method4:(id)anObject;", 6692 format("-(NSInteger)Method4:(id)anObject;")); 6693 EXPECT_EQ("- (NSInteger)Method5:(id)anObject:(id)AnotherObject;", 6694 format("-(NSInteger)Method5:(id)anObject:(id)AnotherObject;")); 6695 EXPECT_EQ("- (id)Method6:(id)A:(id)B:(id)C:(id)D;", 6696 format("- (id)Method6:(id)A:(id)B:(id)C:(id)D;")); 6697 EXPECT_EQ("- (void)sendAction:(SEL)aSelector to:(id)anObject " 6698 "forAllCells:(BOOL)flag;", 6699 format("- (void)sendAction:(SEL)aSelector to:(id)anObject " 6700 "forAllCells:(BOOL)flag;")); 6701 6702 // Very long objectiveC method declaration. 6703 verifyFormat("- (void)aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa:\n" 6704 " (SoooooooooooooooooooooomeType *)bbbbbbbbbb;"); 6705 verifyFormat("- (NSUInteger)indexOfObject:(id)anObject\n" 6706 " inRange:(NSRange)range\n" 6707 " outRange:(NSRange)out_range\n" 6708 " outRange1:(NSRange)out_range1\n" 6709 " outRange2:(NSRange)out_range2\n" 6710 " outRange3:(NSRange)out_range3\n" 6711 " outRange4:(NSRange)out_range4\n" 6712 " outRange5:(NSRange)out_range5\n" 6713 " outRange6:(NSRange)out_range6\n" 6714 " outRange7:(NSRange)out_range7\n" 6715 " outRange8:(NSRange)out_range8\n" 6716 " outRange9:(NSRange)out_range9;"); 6717 6718 verifyFormat("- (int)sum:(vector<int>)numbers;"); 6719 verifyGoogleFormat("- (void)setDelegate:(id<Protocol>)delegate;"); 6720 // FIXME: In LLVM style, there should be a space in front of a '<' for ObjC 6721 // protocol lists (but not for template classes): 6722 // verifyFormat("- (void)setDelegate:(id <Protocol>)delegate;"); 6723 6724 verifyFormat("- (int (*)())foo:(int (*)())f;"); 6725 verifyGoogleFormat("- (int (*)())foo:(int (*)())foo;"); 6726 6727 // If there's no return type (very rare in practice!), LLVM and Google style 6728 // agree. 6729 verifyFormat("- foo;"); 6730 verifyFormat("- foo:(int)f;"); 6731 verifyGoogleFormat("- foo:(int)foo;"); 6732 } 6733 6734 TEST_F(FormatTest, FormatObjCInterface) { 6735 verifyFormat("@interface Foo : NSObject <NSSomeDelegate> {\n" 6736 "@public\n" 6737 " int field1;\n" 6738 "@protected\n" 6739 " int field2;\n" 6740 "@private\n" 6741 " int field3;\n" 6742 "@package\n" 6743 " int field4;\n" 6744 "}\n" 6745 "+ (id)init;\n" 6746 "@end"); 6747 6748 verifyGoogleFormat("@interface Foo : NSObject<NSSomeDelegate> {\n" 6749 " @public\n" 6750 " int field1;\n" 6751 " @protected\n" 6752 " int field2;\n" 6753 " @private\n" 6754 " int field3;\n" 6755 " @package\n" 6756 " int field4;\n" 6757 "}\n" 6758 "+ (id)init;\n" 6759 "@end"); 6760 6761 verifyFormat("@interface /* wait for it */ Foo\n" 6762 "+ (id)init;\n" 6763 "// Look, a comment!\n" 6764 "- (int)answerWith:(int)i;\n" 6765 "@end"); 6766 6767 verifyFormat("@interface Foo\n" 6768 "@end\n" 6769 "@interface Bar\n" 6770 "@end"); 6771 6772 verifyFormat("@interface Foo : Bar\n" 6773 "+ (id)init;\n" 6774 "@end"); 6775 6776 verifyFormat("@interface Foo : /**/ Bar /**/ <Baz, /**/ Quux>\n" 6777 "+ (id)init;\n" 6778 "@end"); 6779 6780 verifyGoogleFormat("@interface Foo : Bar<Baz, Quux>\n" 6781 "+ (id)init;\n" 6782 "@end"); 6783 6784 verifyFormat("@interface Foo (HackStuff)\n" 6785 "+ (id)init;\n" 6786 "@end"); 6787 6788 verifyFormat("@interface Foo ()\n" 6789 "+ (id)init;\n" 6790 "@end"); 6791 6792 verifyFormat("@interface Foo (HackStuff) <MyProtocol>\n" 6793 "+ (id)init;\n" 6794 "@end"); 6795 6796 verifyGoogleFormat("@interface Foo (HackStuff)<MyProtocol>\n" 6797 "+ (id)init;\n" 6798 "@end"); 6799 6800 verifyFormat("@interface Foo {\n" 6801 " int _i;\n" 6802 "}\n" 6803 "+ (id)init;\n" 6804 "@end"); 6805 6806 verifyFormat("@interface Foo : Bar {\n" 6807 " int _i;\n" 6808 "}\n" 6809 "+ (id)init;\n" 6810 "@end"); 6811 6812 verifyFormat("@interface Foo : Bar <Baz, Quux> {\n" 6813 " int _i;\n" 6814 "}\n" 6815 "+ (id)init;\n" 6816 "@end"); 6817 6818 verifyFormat("@interface Foo (HackStuff) {\n" 6819 " int _i;\n" 6820 "}\n" 6821 "+ (id)init;\n" 6822 "@end"); 6823 6824 verifyFormat("@interface Foo () {\n" 6825 " int _i;\n" 6826 "}\n" 6827 "+ (id)init;\n" 6828 "@end"); 6829 6830 verifyFormat("@interface Foo (HackStuff) <MyProtocol> {\n" 6831 " int _i;\n" 6832 "}\n" 6833 "+ (id)init;\n" 6834 "@end"); 6835 6836 FormatStyle OnePerLine = getGoogleStyle(); 6837 OnePerLine.BinPackParameters = false; 6838 verifyFormat("@interface aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ()<\n" 6839 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 6840 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 6841 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 6842 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa> {\n" 6843 "}", 6844 OnePerLine); 6845 } 6846 6847 TEST_F(FormatTest, FormatObjCImplementation) { 6848 verifyFormat("@implementation Foo : NSObject {\n" 6849 "@public\n" 6850 " int field1;\n" 6851 "@protected\n" 6852 " int field2;\n" 6853 "@private\n" 6854 " int field3;\n" 6855 "@package\n" 6856 " int field4;\n" 6857 "}\n" 6858 "+ (id)init {\n}\n" 6859 "@end"); 6860 6861 verifyGoogleFormat("@implementation Foo : NSObject {\n" 6862 " @public\n" 6863 " int field1;\n" 6864 " @protected\n" 6865 " int field2;\n" 6866 " @private\n" 6867 " int field3;\n" 6868 " @package\n" 6869 " int field4;\n" 6870 "}\n" 6871 "+ (id)init {\n}\n" 6872 "@end"); 6873 6874 verifyFormat("@implementation Foo\n" 6875 "+ (id)init {\n" 6876 " if (true)\n" 6877 " return nil;\n" 6878 "}\n" 6879 "// Look, a comment!\n" 6880 "- (int)answerWith:(int)i {\n" 6881 " return i;\n" 6882 "}\n" 6883 "+ (int)answerWith:(int)i {\n" 6884 " return i;\n" 6885 "}\n" 6886 "@end"); 6887 6888 verifyFormat("@implementation Foo\n" 6889 "@end\n" 6890 "@implementation Bar\n" 6891 "@end"); 6892 6893 EXPECT_EQ("@implementation Foo : Bar\n" 6894 "+ (id)init {\n}\n" 6895 "- (void)foo {\n}\n" 6896 "@end", 6897 format("@implementation Foo : Bar\n" 6898 "+(id)init{}\n" 6899 "-(void)foo{}\n" 6900 "@end")); 6901 6902 verifyFormat("@implementation Foo {\n" 6903 " int _i;\n" 6904 "}\n" 6905 "+ (id)init {\n}\n" 6906 "@end"); 6907 6908 verifyFormat("@implementation Foo : Bar {\n" 6909 " int _i;\n" 6910 "}\n" 6911 "+ (id)init {\n}\n" 6912 "@end"); 6913 6914 verifyFormat("@implementation Foo (HackStuff)\n" 6915 "+ (id)init {\n}\n" 6916 "@end"); 6917 verifyFormat("@implementation ObjcClass\n" 6918 "- (void)method;\n" 6919 "{}\n" 6920 "@end"); 6921 } 6922 6923 TEST_F(FormatTest, FormatObjCProtocol) { 6924 verifyFormat("@protocol Foo\n" 6925 "@property(weak) id delegate;\n" 6926 "- (NSUInteger)numberOfThings;\n" 6927 "@end"); 6928 6929 verifyFormat("@protocol MyProtocol <NSObject>\n" 6930 "- (NSUInteger)numberOfThings;\n" 6931 "@end"); 6932 6933 verifyGoogleFormat("@protocol MyProtocol<NSObject>\n" 6934 "- (NSUInteger)numberOfThings;\n" 6935 "@end"); 6936 6937 verifyFormat("@protocol Foo;\n" 6938 "@protocol Bar;\n"); 6939 6940 verifyFormat("@protocol Foo\n" 6941 "@end\n" 6942 "@protocol Bar\n" 6943 "@end"); 6944 6945 verifyFormat("@protocol myProtocol\n" 6946 "- (void)mandatoryWithInt:(int)i;\n" 6947 "@optional\n" 6948 "- (void)optional;\n" 6949 "@required\n" 6950 "- (void)required;\n" 6951 "@optional\n" 6952 "@property(assign) int madProp;\n" 6953 "@end\n"); 6954 6955 verifyFormat("@property(nonatomic, assign, readonly)\n" 6956 " int *looooooooooooooooooooooooooooongNumber;\n" 6957 "@property(nonatomic, assign, readonly)\n" 6958 " NSString *looooooooooooooooooooooooooooongName;"); 6959 6960 verifyFormat("@implementation PR18406\n" 6961 "}\n" 6962 "@end"); 6963 } 6964 6965 TEST_F(FormatTest, FormatObjCMethodDeclarations) { 6966 verifyFormat("- (void)doSomethingWith:(GTMFoo *)theFoo\n" 6967 " rect:(NSRect)theRect\n" 6968 " interval:(float)theInterval {\n" 6969 "}"); 6970 verifyFormat("- (void)shortf:(GTMFoo *)theFoo\n" 6971 " longKeyword:(NSRect)theRect\n" 6972 " evenLongerKeyword:(float)theInterval\n" 6973 " error:(NSError **)theError {\n" 6974 "}"); 6975 verifyFormat("- (instancetype)initXxxxxx:(id<x>)x\n" 6976 " y:(id<yyyyyyyyyyyyyyyyyyyy>)y\n" 6977 " NS_DESIGNATED_INITIALIZER;", 6978 getLLVMStyleWithColumns(60)); 6979 } 6980 6981 TEST_F(FormatTest, FormatObjCMethodExpr) { 6982 verifyFormat("[foo bar:baz];"); 6983 verifyFormat("return [foo bar:baz];"); 6984 verifyFormat("return (a)[foo bar:baz];"); 6985 verifyFormat("f([foo bar:baz]);"); 6986 verifyFormat("f(2, [foo bar:baz]);"); 6987 verifyFormat("f(2, a ? b : c);"); 6988 verifyFormat("[[self initWithInt:4] bar:[baz quux:arrrr]];"); 6989 6990 // Unary operators. 6991 verifyFormat("int a = +[foo bar:baz];"); 6992 verifyFormat("int a = -[foo bar:baz];"); 6993 verifyFormat("int a = ![foo bar:baz];"); 6994 verifyFormat("int a = ~[foo bar:baz];"); 6995 verifyFormat("int a = ++[foo bar:baz];"); 6996 verifyFormat("int a = --[foo bar:baz];"); 6997 verifyFormat("int a = sizeof [foo bar:baz];"); 6998 verifyFormat("int a = alignof [foo bar:baz];", getGoogleStyle()); 6999 verifyFormat("int a = &[foo bar:baz];"); 7000 verifyFormat("int a = *[foo bar:baz];"); 7001 // FIXME: Make casts work, without breaking f()[4]. 7002 // verifyFormat("int a = (int)[foo bar:baz];"); 7003 // verifyFormat("return (int)[foo bar:baz];"); 7004 // verifyFormat("(void)[foo bar:baz];"); 7005 verifyFormat("return (MyType *)[self.tableView cellForRowAtIndexPath:cell];"); 7006 7007 // Binary operators. 7008 verifyFormat("[foo bar:baz], [foo bar:baz];"); 7009 verifyFormat("[foo bar:baz] = [foo bar:baz];"); 7010 verifyFormat("[foo bar:baz] *= [foo bar:baz];"); 7011 verifyFormat("[foo bar:baz] /= [foo bar:baz];"); 7012 verifyFormat("[foo bar:baz] %= [foo bar:baz];"); 7013 verifyFormat("[foo bar:baz] += [foo bar:baz];"); 7014 verifyFormat("[foo bar:baz] -= [foo bar:baz];"); 7015 verifyFormat("[foo bar:baz] <<= [foo bar:baz];"); 7016 verifyFormat("[foo bar:baz] >>= [foo bar:baz];"); 7017 verifyFormat("[foo bar:baz] &= [foo bar:baz];"); 7018 verifyFormat("[foo bar:baz] ^= [foo bar:baz];"); 7019 verifyFormat("[foo bar:baz] |= [foo bar:baz];"); 7020 verifyFormat("[foo bar:baz] ? [foo bar:baz] : [foo bar:baz];"); 7021 verifyFormat("[foo bar:baz] || [foo bar:baz];"); 7022 verifyFormat("[foo bar:baz] && [foo bar:baz];"); 7023 verifyFormat("[foo bar:baz] | [foo bar:baz];"); 7024 verifyFormat("[foo bar:baz] ^ [foo bar:baz];"); 7025 verifyFormat("[foo bar:baz] & [foo bar:baz];"); 7026 verifyFormat("[foo bar:baz] == [foo bar:baz];"); 7027 verifyFormat("[foo bar:baz] != [foo bar:baz];"); 7028 verifyFormat("[foo bar:baz] >= [foo bar:baz];"); 7029 verifyFormat("[foo bar:baz] <= [foo bar:baz];"); 7030 verifyFormat("[foo bar:baz] > [foo bar:baz];"); 7031 verifyFormat("[foo bar:baz] < [foo bar:baz];"); 7032 verifyFormat("[foo bar:baz] >> [foo bar:baz];"); 7033 verifyFormat("[foo bar:baz] << [foo bar:baz];"); 7034 verifyFormat("[foo bar:baz] - [foo bar:baz];"); 7035 verifyFormat("[foo bar:baz] + [foo bar:baz];"); 7036 verifyFormat("[foo bar:baz] * [foo bar:baz];"); 7037 verifyFormat("[foo bar:baz] / [foo bar:baz];"); 7038 verifyFormat("[foo bar:baz] % [foo bar:baz];"); 7039 // Whew! 7040 7041 verifyFormat("return in[42];"); 7042 verifyFormat("for (auto v : in[1]) {\n}"); 7043 verifyFormat("for (int i = 0; i < in[a]; ++i) {\n}"); 7044 verifyFormat("for (int i = 0; in[a] < i; ++i) {\n}"); 7045 verifyFormat("for (int i = 0; i < n; ++i, ++in[a]) {\n}"); 7046 verifyFormat("for (int i = 0; i < n; ++i, in[a]++) {\n}"); 7047 verifyFormat("for (int i = 0; i < f(in[a]); ++i, in[a]++) {\n}"); 7048 verifyFormat("for (id foo in [self getStuffFor:bla]) {\n" 7049 "}"); 7050 verifyFormat("[self aaaaa:MACRO(a, b:, c:)];"); 7051 7052 verifyFormat("[self stuffWithInt:(4 + 2) float:4.5];"); 7053 verifyFormat("[self stuffWithInt:a ? b : c float:4.5];"); 7054 verifyFormat("[self stuffWithInt:a ? [self foo:bar] : c];"); 7055 verifyFormat("[self stuffWithInt:a ? (e ? f : g) : c];"); 7056 verifyFormat("[cond ? obj1 : obj2 methodWithParam:param]"); 7057 verifyFormat("[button setAction:@selector(zoomOut:)];"); 7058 verifyFormat("[color getRed:&r green:&g blue:&b alpha:&a];"); 7059 7060 verifyFormat("arr[[self indexForFoo:a]];"); 7061 verifyFormat("throw [self errorFor:a];"); 7062 verifyFormat("@throw [self errorFor:a];"); 7063 7064 verifyFormat("[(id)foo bar:(id)baz quux:(id)snorf];"); 7065 verifyFormat("[(id)foo bar:(id) ? baz : quux];"); 7066 verifyFormat("4 > 4 ? (id)a : (id)baz;"); 7067 7068 // This tests that the formatter doesn't break after "backing" but before ":", 7069 // which would be at 80 columns. 7070 verifyFormat( 7071 "void f() {\n" 7072 " if ((self = [super initWithContentRect:contentRect\n" 7073 " styleMask:styleMask ?: otherMask\n" 7074 " backing:NSBackingStoreBuffered\n" 7075 " defer:YES]))"); 7076 7077 verifyFormat( 7078 "[foo checkThatBreakingAfterColonWorksOk:\n" 7079 " [bar ifItDoes:reduceOverallLineLengthLikeInThisCase]];"); 7080 7081 verifyFormat("[myObj short:arg1 // Force line break\n" 7082 " longKeyword:arg2 != nil ? arg2 : @\"longKeyword\"\n" 7083 " evenLongerKeyword:arg3 ?: @\"evenLongerKeyword\"\n" 7084 " error:arg4];"); 7085 verifyFormat( 7086 "void f() {\n" 7087 " popup_window_.reset([[RenderWidgetPopupWindow alloc]\n" 7088 " initWithContentRect:NSMakeRect(origin_global.x, origin_global.y,\n" 7089 " pos.width(), pos.height())\n" 7090 " styleMask:NSBorderlessWindowMask\n" 7091 " backing:NSBackingStoreBuffered\n" 7092 " defer:NO]);\n" 7093 "}"); 7094 verifyFormat( 7095 "void f() {\n" 7096 " popup_wdow_.reset([[RenderWidgetPopupWindow alloc]\n" 7097 " iniithContentRect:NSMakRet(origin_global.x, origin_global.y,\n" 7098 " pos.width(), pos.height())\n" 7099 " syeMask:NSBorderlessWindowMask\n" 7100 " bking:NSBackingStoreBuffered\n" 7101 " der:NO]);\n" 7102 "}", 7103 getLLVMStyleWithColumns(70)); 7104 verifyFormat( 7105 "void f() {\n" 7106 " popup_window_.reset([[RenderWidgetPopupWindow alloc]\n" 7107 " initWithContentRect:NSMakeRect(origin_global.x, origin_global.y,\n" 7108 " pos.width(), pos.height())\n" 7109 " styleMask:NSBorderlessWindowMask\n" 7110 " backing:NSBackingStoreBuffered\n" 7111 " defer:NO]);\n" 7112 "}", 7113 getChromiumStyle(FormatStyle::LK_Cpp)); 7114 verifyFormat("[contentsContainer replaceSubview:[subviews objectAtIndex:0]\n" 7115 " with:contentsNativeView];"); 7116 7117 verifyFormat( 7118 "[pboard addTypes:[NSArray arrayWithObject:kBookmarkButtonDragType]\n" 7119 " owner:nillllll];"); 7120 7121 verifyFormat( 7122 "[pboard setData:[NSData dataWithBytes:&button length:sizeof(button)]\n" 7123 " forType:kBookmarkButtonDragType];"); 7124 7125 verifyFormat("[defaultCenter addObserver:self\n" 7126 " selector:@selector(willEnterFullscreen)\n" 7127 " name:kWillEnterFullscreenNotification\n" 7128 " object:nil];"); 7129 verifyFormat("[image_rep drawInRect:drawRect\n" 7130 " fromRect:NSZeroRect\n" 7131 " operation:NSCompositeCopy\n" 7132 " fraction:1.0\n" 7133 " respectFlipped:NO\n" 7134 " hints:nil];"); 7135 7136 verifyFormat( 7137 "scoped_nsobject<NSTextField> message(\n" 7138 " // The frame will be fixed up when |-setMessageText:| is called.\n" 7139 " [[NSTextField alloc] initWithFrame:NSMakeRect(0, 0, 0, 0)]);"); 7140 verifyFormat("[self aaaaaa:bbbbbbbbbbbbb\n" 7141 " aaaaaaaaaa:bbbbbbbbbbbbbbbbb\n" 7142 " aaaaa:bbbbbbbbbbb + bbbbbbbbbbbb\n" 7143 " aaaa:bbb];"); 7144 verifyFormat("[self param:function( //\n" 7145 " parameter)]"); 7146 verifyFormat( 7147 "[self aaaaaaaaaa:aaaaaaaaaaaaaaa | aaaaaaaaaaaaaaa | aaaaaaaaaaaaaaa |\n" 7148 " aaaaaaaaaaaaaaa | aaaaaaaaaaaaaaa | aaaaaaaaaaaaaaa |\n" 7149 " aaaaaaaaaaaaaaa | aaaaaaaaaaaaaaa];"); 7150 7151 // Variadic parameters. 7152 verifyFormat( 7153 "NSArray *myStrings = [NSArray stringarray:@\"a\", @\"b\", nil];"); 7154 verifyFormat( 7155 "[self aaaaaaaaaaaaa:aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaa,\n" 7156 " aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaa,\n" 7157 " aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaa];"); 7158 verifyFormat("[self // break\n" 7159 " a:a\n" 7160 " aaa:aaa];"); 7161 verifyFormat("bool a = ([aaaaaaaa aaaaa] == aaaaaaaaaaaaaaaaa ||\n" 7162 " [aaaaaaaa aaaaa] == aaaaaaaaaaaaaaaaaaaa);"); 7163 } 7164 7165 TEST_F(FormatTest, ObjCAt) { 7166 verifyFormat("@autoreleasepool"); 7167 verifyFormat("@catch"); 7168 verifyFormat("@class"); 7169 verifyFormat("@compatibility_alias"); 7170 verifyFormat("@defs"); 7171 verifyFormat("@dynamic"); 7172 verifyFormat("@encode"); 7173 verifyFormat("@end"); 7174 verifyFormat("@finally"); 7175 verifyFormat("@implementation"); 7176 verifyFormat("@import"); 7177 verifyFormat("@interface"); 7178 verifyFormat("@optional"); 7179 verifyFormat("@package"); 7180 verifyFormat("@private"); 7181 verifyFormat("@property"); 7182 verifyFormat("@protected"); 7183 verifyFormat("@protocol"); 7184 verifyFormat("@public"); 7185 verifyFormat("@required"); 7186 verifyFormat("@selector"); 7187 verifyFormat("@synchronized"); 7188 verifyFormat("@synthesize"); 7189 verifyFormat("@throw"); 7190 verifyFormat("@try"); 7191 7192 EXPECT_EQ("@interface", format("@ interface")); 7193 7194 // The precise formatting of this doesn't matter, nobody writes code like 7195 // this. 7196 verifyFormat("@ /*foo*/ interface"); 7197 } 7198 7199 TEST_F(FormatTest, ObjCSnippets) { 7200 verifyFormat("@autoreleasepool {\n" 7201 " foo();\n" 7202 "}"); 7203 verifyFormat("@class Foo, Bar;"); 7204 verifyFormat("@compatibility_alias AliasName ExistingClass;"); 7205 verifyFormat("@dynamic textColor;"); 7206 verifyFormat("char *buf1 = @encode(int *);"); 7207 verifyFormat("char *buf1 = @encode(typeof(4 * 5));"); 7208 verifyFormat("char *buf1 = @encode(int **);"); 7209 verifyFormat("Protocol *proto = @protocol(p1);"); 7210 verifyFormat("SEL s = @selector(foo:);"); 7211 verifyFormat("@synchronized(self) {\n" 7212 " f();\n" 7213 "}"); 7214 7215 verifyFormat("@synthesize dropArrowPosition = dropArrowPosition_;"); 7216 verifyGoogleFormat("@synthesize dropArrowPosition = dropArrowPosition_;"); 7217 7218 verifyFormat("@property(assign, nonatomic) CGFloat hoverAlpha;"); 7219 verifyFormat("@property(assign, getter=isEditable) BOOL editable;"); 7220 verifyGoogleFormat("@property(assign, getter=isEditable) BOOL editable;"); 7221 verifyFormat("@property (assign, getter=isEditable) BOOL editable;", 7222 getMozillaStyle()); 7223 verifyFormat("@property BOOL editable;", getMozillaStyle()); 7224 verifyFormat("@property (assign, getter=isEditable) BOOL editable;", 7225 getWebKitStyle()); 7226 verifyFormat("@property BOOL editable;", getWebKitStyle()); 7227 7228 verifyFormat("@import foo.bar;\n" 7229 "@import baz;"); 7230 } 7231 7232 TEST_F(FormatTest, ObjCLiterals) { 7233 verifyFormat("@\"String\""); 7234 verifyFormat("@1"); 7235 verifyFormat("@+4.8"); 7236 verifyFormat("@-4"); 7237 verifyFormat("@1LL"); 7238 verifyFormat("@.5"); 7239 verifyFormat("@'c'"); 7240 verifyFormat("@true"); 7241 7242 verifyFormat("NSNumber *smallestInt = @(-INT_MAX - 1);"); 7243 verifyFormat("NSNumber *piOverTwo = @(M_PI / 2);"); 7244 verifyFormat("NSNumber *favoriteColor = @(Green);"); 7245 verifyFormat("NSString *path = @(getenv(\"PATH\"));"); 7246 7247 verifyFormat("[dictionary setObject:@(1) forKey:@\"number\"];"); 7248 } 7249 7250 TEST_F(FormatTest, ObjCDictLiterals) { 7251 verifyFormat("@{"); 7252 verifyFormat("@{}"); 7253 verifyFormat("@{@\"one\" : @1}"); 7254 verifyFormat("return @{@\"one\" : @1;"); 7255 verifyFormat("@{@\"one\" : @1}"); 7256 7257 verifyFormat("@{@\"one\" : @{@2 : @1}}"); 7258 verifyFormat("@{\n" 7259 " @\"one\" : @{@2 : @1},\n" 7260 "}"); 7261 7262 verifyFormat("@{1 > 2 ? @\"one\" : @\"two\" : 1 > 2 ? @1 : @2}"); 7263 verifyFormat("[self setDict:@{}"); 7264 verifyFormat("[self setDict:@{@1 : @2}"); 7265 verifyFormat("NSLog(@\"%@\", @{@1 : @2, @2 : @3}[@1]);"); 7266 verifyFormat( 7267 "NSDictionary *masses = @{@\"H\" : @1.0078, @\"He\" : @4.0026};"); 7268 verifyFormat( 7269 "NSDictionary *settings = @{AVEncoderKey : @(AVAudioQualityMax)};"); 7270 7271 verifyFormat("NSDictionary *d = @{\n" 7272 " @\"nam\" : NSUserNam(),\n" 7273 " @\"dte\" : [NSDate date],\n" 7274 " @\"processInfo\" : [NSProcessInfo processInfo]\n" 7275 "};"); 7276 verifyFormat( 7277 "@{\n" 7278 " NSFontAttributeNameeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee : " 7279 "regularFont,\n" 7280 "};"); 7281 verifyGoogleFormat( 7282 "@{\n" 7283 " NSFontAttributeNameeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee : " 7284 "regularFont,\n" 7285 "};"); 7286 verifyFormat( 7287 "@{\n" 7288 " NSFontAttributeNameeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee :\n" 7289 " reeeeeeeeeeeeeeeeeeeeeeeegularFont,\n" 7290 "};"); 7291 7292 // We should try to be robust in case someone forgets the "@". 7293 verifyFormat("NSDictionary *d = {\n" 7294 " @\"nam\" : NSUserNam(),\n" 7295 " @\"dte\" : [NSDate date],\n" 7296 " @\"processInfo\" : [NSProcessInfo processInfo]\n" 7297 "};"); 7298 verifyFormat("NSMutableDictionary *dictionary =\n" 7299 " [NSMutableDictionary dictionaryWithDictionary:@{\n" 7300 " aaaaaaaaaaaaaaaaaaaaa : aaaaaaaaaaaaa,\n" 7301 " bbbbbbbbbbbbbbbbbb : bbbbb,\n" 7302 " cccccccccccccccc : ccccccccccccccc\n" 7303 " }];"); 7304 } 7305 7306 TEST_F(FormatTest, ObjCArrayLiterals) { 7307 verifyFormat("@["); 7308 verifyFormat("@[]"); 7309 verifyFormat( 7310 "NSArray *array = @[ @\" Hey \", NSApp, [NSNumber numberWithInt:42] ];"); 7311 verifyFormat("return @[ @3, @[], @[ @4, @5 ] ];"); 7312 verifyFormat("NSArray *array = @[ [foo description] ];"); 7313 7314 verifyFormat( 7315 "NSArray *some_variable = @[\n" 7316 " aaaa == bbbbbbbbbbb ? @\"aaaaaaaaaaaa\" : @\"aaaaaaaaaaaaaa\",\n" 7317 " @\"aaaaaaaaaaaaaaaaa\",\n" 7318 " @\"aaaaaaaaaaaaaaaaa\",\n" 7319 " @\"aaaaaaaaaaaaaaaaa\"\n" 7320 "];"); 7321 verifyFormat("NSArray *some_variable = @[\n" 7322 " @\"aaaaaaaaaaaaaaaaa\",\n" 7323 " @\"aaaaaaaaaaaaaaaaa\",\n" 7324 " @\"aaaaaaaaaaaaaaaaa\",\n" 7325 " @\"aaaaaaaaaaaaaaaaa\",\n" 7326 "];"); 7327 verifyGoogleFormat("NSArray *some_variable = @[\n" 7328 " @\"aaaaaaaaaaaaaaaaa\",\n" 7329 " @\"aaaaaaaaaaaaaaaaa\",\n" 7330 " @\"aaaaaaaaaaaaaaaaa\",\n" 7331 " @\"aaaaaaaaaaaaaaaaa\"\n" 7332 "];"); 7333 verifyFormat("NSArray *array = @[\n" 7334 " @\"a\",\n" 7335 " @\"a\",\n" // Trailing comma -> one per line. 7336 "];"); 7337 7338 // We should try to be robust in case someone forgets the "@". 7339 verifyFormat("NSArray *some_variable = [\n" 7340 " @\"aaaaaaaaaaaaaaaaa\",\n" 7341 " @\"aaaaaaaaaaaaaaaaa\",\n" 7342 " @\"aaaaaaaaaaaaaaaaa\",\n" 7343 " @\"aaaaaaaaaaaaaaaaa\",\n" 7344 "];"); 7345 verifyFormat( 7346 "- (NSAttributedString *)attributedStringForSegment:(NSUInteger)segment\n" 7347 " index:(NSUInteger)index\n" 7348 " nonDigitAttributes:\n" 7349 " (NSDictionary *)noDigitAttributes;"); 7350 verifyFormat( 7351 "[someFunction someLooooooooooooongParameter:\n" 7352 " @[ NSBundle.mainBundle.infoDictionary[@\"a\"] ]];"); 7353 } 7354 7355 TEST_F(FormatTest, ReformatRegionAdjustsIndent) { 7356 EXPECT_EQ("{\n" 7357 "{\n" 7358 "a;\n" 7359 "b;\n" 7360 "}\n" 7361 "}", 7362 format("{\n" 7363 "{\n" 7364 "a;\n" 7365 " b;\n" 7366 "}\n" 7367 "}", 7368 13, 2, getLLVMStyle())); 7369 EXPECT_EQ("{\n" 7370 "{\n" 7371 " a;\n" 7372 "b;\n" 7373 "}\n" 7374 "}", 7375 format("{\n" 7376 "{\n" 7377 " a;\n" 7378 "b;\n" 7379 "}\n" 7380 "}", 7381 9, 2, getLLVMStyle())); 7382 EXPECT_EQ("{\n" 7383 "{\n" 7384 "public:\n" 7385 " b;\n" 7386 "}\n" 7387 "}", 7388 format("{\n" 7389 "{\n" 7390 "public:\n" 7391 " b;\n" 7392 "}\n" 7393 "}", 7394 17, 2, getLLVMStyle())); 7395 EXPECT_EQ("{\n" 7396 "{\n" 7397 "a;\n" 7398 "}\n" 7399 "{\n" 7400 " b; //\n" 7401 "}\n" 7402 "}", 7403 format("{\n" 7404 "{\n" 7405 "a;\n" 7406 "}\n" 7407 "{\n" 7408 " b; //\n" 7409 "}\n" 7410 "}", 7411 22, 2, getLLVMStyle())); 7412 EXPECT_EQ(" {\n" 7413 " a; //\n" 7414 " }", 7415 format(" {\n" 7416 "a; //\n" 7417 " }", 7418 4, 2, getLLVMStyle())); 7419 EXPECT_EQ("void f() {}\n" 7420 "void g() {}", 7421 format("void f() {}\n" 7422 "void g() {}", 7423 13, 0, getLLVMStyle())); 7424 EXPECT_EQ("int a; // comment\n" 7425 " // line 2\n" 7426 "int b;", 7427 format("int a; // comment\n" 7428 " // line 2\n" 7429 " int b;", 7430 35, 0, getLLVMStyle())); 7431 EXPECT_EQ(" int a;\n" 7432 " void\n" 7433 " ffffff() {\n" 7434 " }", 7435 format(" int a;\n" 7436 "void ffffff() {}", 7437 11, 0, getLLVMStyleWithColumns(11))); 7438 7439 EXPECT_EQ(" void f() {\n" 7440 "#define A 1\n" 7441 " }", 7442 format(" void f() {\n" 7443 " #define A 1\n" // Format this line. 7444 " }", 7445 20, 0, getLLVMStyle())); 7446 EXPECT_EQ(" void f() {\n" 7447 " int i;\n" 7448 "#define A \\\n" 7449 " int i; \\\n" 7450 " int j;\n" 7451 " int k;\n" 7452 " }", 7453 format(" void f() {\n" 7454 " int i;\n" 7455 "#define A \\\n" 7456 " int i; \\\n" 7457 " int j;\n" 7458 " int k;\n" // Format this line. 7459 " }", 7460 67, 0, getLLVMStyle())); 7461 } 7462 7463 TEST_F(FormatTest, BreaksStringLiterals) { 7464 EXPECT_EQ("\"some text \"\n" 7465 "\"other\";", 7466 format("\"some text other\";", getLLVMStyleWithColumns(12))); 7467 EXPECT_EQ("\"some text \"\n" 7468 "\"other\";", 7469 format("\\\n\"some text other\";", getLLVMStyleWithColumns(12))); 7470 EXPECT_EQ( 7471 "#define A \\\n" 7472 " \"some \" \\\n" 7473 " \"text \" \\\n" 7474 " \"other\";", 7475 format("#define A \"some text other\";", getLLVMStyleWithColumns(12))); 7476 EXPECT_EQ( 7477 "#define A \\\n" 7478 " \"so \" \\\n" 7479 " \"text \" \\\n" 7480 " \"other\";", 7481 format("#define A \"so text other\";", getLLVMStyleWithColumns(12))); 7482 7483 EXPECT_EQ("\"some text\"", 7484 format("\"some text\"", getLLVMStyleWithColumns(1))); 7485 EXPECT_EQ("\"some text\"", 7486 format("\"some text\"", getLLVMStyleWithColumns(11))); 7487 EXPECT_EQ("\"some \"\n" 7488 "\"text\"", 7489 format("\"some text\"", getLLVMStyleWithColumns(10))); 7490 EXPECT_EQ("\"some \"\n" 7491 "\"text\"", 7492 format("\"some text\"", getLLVMStyleWithColumns(7))); 7493 EXPECT_EQ("\"some\"\n" 7494 "\" tex\"\n" 7495 "\"t\"", 7496 format("\"some text\"", getLLVMStyleWithColumns(6))); 7497 EXPECT_EQ("\"some\"\n" 7498 "\" tex\"\n" 7499 "\" and\"", 7500 format("\"some tex and\"", getLLVMStyleWithColumns(6))); 7501 EXPECT_EQ("\"some\"\n" 7502 "\"/tex\"\n" 7503 "\"/and\"", 7504 format("\"some/tex/and\"", getLLVMStyleWithColumns(6))); 7505 7506 EXPECT_EQ("variable =\n" 7507 " \"long string \"\n" 7508 " \"literal\";", 7509 format("variable = \"long string literal\";", 7510 getLLVMStyleWithColumns(20))); 7511 7512 EXPECT_EQ("variable = f(\n" 7513 " \"long string \"\n" 7514 " \"literal\",\n" 7515 " short,\n" 7516 " loooooooooooooooooooong);", 7517 format("variable = f(\"long string literal\", short, " 7518 "loooooooooooooooooooong);", 7519 getLLVMStyleWithColumns(20))); 7520 7521 EXPECT_EQ( 7522 "f(g(\"long string \"\n" 7523 " \"literal\"),\n" 7524 " b);", 7525 format("f(g(\"long string literal\"), b);", getLLVMStyleWithColumns(20))); 7526 EXPECT_EQ("f(g(\"long string \"\n" 7527 " \"literal\",\n" 7528 " a),\n" 7529 " b);", 7530 format("f(g(\"long string literal\", a), b);", 7531 getLLVMStyleWithColumns(20))); 7532 EXPECT_EQ( 7533 "f(\"one two\".split(\n" 7534 " variable));", 7535 format("f(\"one two\".split(variable));", getLLVMStyleWithColumns(20))); 7536 EXPECT_EQ("f(\"one two three four five six \"\n" 7537 " \"seven\".split(\n" 7538 " really_looooong_variable));", 7539 format("f(\"one two three four five six seven\"." 7540 "split(really_looooong_variable));", 7541 getLLVMStyleWithColumns(33))); 7542 7543 EXPECT_EQ("f(\"some \"\n" 7544 " \"text\",\n" 7545 " other);", 7546 format("f(\"some text\", other);", getLLVMStyleWithColumns(10))); 7547 7548 // Only break as a last resort. 7549 verifyFormat( 7550 "aaaaaaaaaaaaaaaaaaaa(\n" 7551 " aaaaaaaaaaaaaaaaaaaa,\n" 7552 " aaaaaa(\"aaa aaaaa aaa aaa aaaaa aaa aaaaa aaa aaa aaaaaa\"));"); 7553 7554 EXPECT_EQ("\"splitmea\"\n" 7555 "\"trandomp\"\n" 7556 "\"oint\"", 7557 format("\"splitmeatrandompoint\"", getLLVMStyleWithColumns(10))); 7558 7559 EXPECT_EQ("\"split/\"\n" 7560 "\"pathat/\"\n" 7561 "\"slashes\"", 7562 format("\"split/pathat/slashes\"", getLLVMStyleWithColumns(10))); 7563 7564 EXPECT_EQ("\"split/\"\n" 7565 "\"pathat/\"\n" 7566 "\"slashes\"", 7567 format("\"split/pathat/slashes\"", getLLVMStyleWithColumns(10))); 7568 EXPECT_EQ("\"split at \"\n" 7569 "\"spaces/at/\"\n" 7570 "\"slashes.at.any$\"\n" 7571 "\"non-alphanumeric%\"\n" 7572 "\"1111111111characte\"\n" 7573 "\"rs\"", 7574 format("\"split at " 7575 "spaces/at/" 7576 "slashes.at." 7577 "any$non-" 7578 "alphanumeric%" 7579 "1111111111characte" 7580 "rs\"", 7581 getLLVMStyleWithColumns(20))); 7582 7583 // Verify that splitting the strings understands 7584 // Style::AlwaysBreakBeforeMultilineStrings. 7585 EXPECT_EQ("aaaaaaaaaaaa(aaaaaaaaaaaaa,\n" 7586 " \"aaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaa \"\n" 7587 " \"aaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaa\");", 7588 format("aaaaaaaaaaaa(aaaaaaaaaaaaa, \"aaaaaaaaaaaaaaaaaaaaaa " 7589 "aaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaa " 7590 "aaaaaaaaaaaaaaaaaaaaaa\");", 7591 getGoogleStyle())); 7592 EXPECT_EQ("return \"aaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaa \"\n" 7593 " \"aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaa\";", 7594 format("return \"aaaaaaaaaaaaaaaaaaaaaa " 7595 "aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaa " 7596 "aaaaaaaaaaaaaaaaaaaaaa\";", 7597 getGoogleStyle())); 7598 EXPECT_EQ("llvm::outs() << \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa \"\n" 7599 " \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\";", 7600 format("llvm::outs() << " 7601 "\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaa" 7602 "aaaaaaaaaaaaaaaaaaa\";")); 7603 EXPECT_EQ("ffff(\n" 7604 " {\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa \"\n" 7605 " \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"});", 7606 format("ffff({\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa " 7607 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"});", 7608 getGoogleStyle())); 7609 7610 FormatStyle AlignLeft = getLLVMStyleWithColumns(12); 7611 AlignLeft.AlignEscapedNewlinesLeft = true; 7612 EXPECT_EQ("#define A \\\n" 7613 " \"some \" \\\n" 7614 " \"text \" \\\n" 7615 " \"other\";", 7616 format("#define A \"some text other\";", AlignLeft)); 7617 } 7618 7619 TEST_F(FormatTest, BreaksStringLiteralsWithTabs) { 7620 EXPECT_EQ( 7621 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" 7622 "(\n" 7623 " \"x\t\");", 7624 format("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" 7625 "aaaaaaa(" 7626 "\"x\t\");")); 7627 } 7628 7629 TEST_F(FormatTest, BreaksWideAndNSStringLiterals) { 7630 EXPECT_EQ( 7631 "u8\"utf8 string \"\n" 7632 "u8\"literal\";", 7633 format("u8\"utf8 string literal\";", getGoogleStyleWithColumns(16))); 7634 EXPECT_EQ( 7635 "u\"utf16 string \"\n" 7636 "u\"literal\";", 7637 format("u\"utf16 string literal\";", getGoogleStyleWithColumns(16))); 7638 EXPECT_EQ( 7639 "U\"utf32 string \"\n" 7640 "U\"literal\";", 7641 format("U\"utf32 string literal\";", getGoogleStyleWithColumns(16))); 7642 EXPECT_EQ("L\"wide string \"\n" 7643 "L\"literal\";", 7644 format("L\"wide string literal\";", getGoogleStyleWithColumns(16))); 7645 EXPECT_EQ("@\"NSString \"\n" 7646 "@\"literal\";", 7647 format("@\"NSString literal\";", getGoogleStyleWithColumns(19))); 7648 7649 // This input makes clang-format try to split the incomplete unicode escape 7650 // sequence, which used to lead to a crasher. 7651 verifyNoCrash( 7652 "aaaaaaaaaaaaaaaaaaaa = L\"\\udff\"'; // aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 7653 getLLVMStyleWithColumns(60)); 7654 } 7655 7656 TEST_F(FormatTest, DoesNotBreakRawStringLiterals) { 7657 FormatStyle Style = getGoogleStyleWithColumns(15); 7658 EXPECT_EQ("R\"x(raw literal)x\";", format("R\"x(raw literal)x\";", Style)); 7659 EXPECT_EQ("uR\"x(raw literal)x\";", format("uR\"x(raw literal)x\";", Style)); 7660 EXPECT_EQ("LR\"x(raw literal)x\";", format("LR\"x(raw literal)x\";", Style)); 7661 EXPECT_EQ("UR\"x(raw literal)x\";", format("UR\"x(raw literal)x\";", Style)); 7662 EXPECT_EQ("u8R\"x(raw literal)x\";", 7663 format("u8R\"x(raw literal)x\";", Style)); 7664 } 7665 7666 TEST_F(FormatTest, BreaksStringLiteralsWithin_TMacro) { 7667 FormatStyle Style = getLLVMStyleWithColumns(20); 7668 EXPECT_EQ( 7669 "_T(\"aaaaaaaaaaaaaa\")\n" 7670 "_T(\"aaaaaaaaaaaaaa\")\n" 7671 "_T(\"aaaaaaaaaaaa\")", 7672 format(" _T(\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\")", Style)); 7673 EXPECT_EQ("f(x, _T(\"aaaaaaaaa\")\n" 7674 " _T(\"aaaaaa\"),\n" 7675 " z);", 7676 format("f(x, _T(\"aaaaaaaaaaaaaaa\"), z);", Style)); 7677 7678 // FIXME: Handle embedded spaces in one iteration. 7679 // EXPECT_EQ("_T(\"aaaaaaaaaaaaa\")\n" 7680 // "_T(\"aaaaaaaaaaaaa\")\n" 7681 // "_T(\"aaaaaaaaaaaaa\")\n" 7682 // "_T(\"a\")", 7683 // format(" _T ( \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\" )", 7684 // getLLVMStyleWithColumns(20))); 7685 EXPECT_EQ( 7686 "_T ( \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\" )", 7687 format(" _T ( \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\" )", Style)); 7688 EXPECT_EQ("f(\n" 7689 "#if !TEST\n" 7690 " _T(\"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXn\")\n" 7691 "#endif\n" 7692 " );", 7693 format("f(\n" 7694 "#if !TEST\n" 7695 "_T(\"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXn\")\n" 7696 "#endif\n" 7697 ");")); 7698 EXPECT_EQ("f(\n" 7699 "\n" 7700 " _T(\"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXn\"));", 7701 format("f(\n" 7702 "\n" 7703 "_T(\"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXn\"));")); 7704 } 7705 7706 TEST_F(FormatTest, DontSplitStringLiteralsWithEscapedNewlines) { 7707 EXPECT_EQ( 7708 "aaaaaaaaaaa = \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 7709 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 7710 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\";", 7711 format("aaaaaaaaaaa = \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 7712 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 7713 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\";")); 7714 } 7715 7716 TEST_F(FormatTest, CountsCharactersInMultilineRawStringLiterals) { 7717 EXPECT_EQ("f(g(R\"x(raw literal)x\", a), b);", 7718 format("f(g(R\"x(raw literal)x\", a), b);", getGoogleStyle())); 7719 EXPECT_EQ("fffffffffff(g(R\"x(\n" 7720 "multiline raw string literal xxxxxxxxxxxxxx\n" 7721 ")x\",\n" 7722 " a),\n" 7723 " b);", 7724 format("fffffffffff(g(R\"x(\n" 7725 "multiline raw string literal xxxxxxxxxxxxxx\n" 7726 ")x\", a), b);", 7727 getGoogleStyleWithColumns(20))); 7728 EXPECT_EQ("fffffffffff(\n" 7729 " g(R\"x(qqq\n" 7730 "multiline raw string literal xxxxxxxxxxxxxx\n" 7731 ")x\",\n" 7732 " a),\n" 7733 " b);", 7734 format("fffffffffff(g(R\"x(qqq\n" 7735 "multiline raw string literal xxxxxxxxxxxxxx\n" 7736 ")x\", a), b);", 7737 getGoogleStyleWithColumns(20))); 7738 7739 EXPECT_EQ("fffffffffff(R\"x(\n" 7740 "multiline raw string literal xxxxxxxxxxxxxx\n" 7741 ")x\");", 7742 format("fffffffffff(R\"x(\n" 7743 "multiline raw string literal xxxxxxxxxxxxxx\n" 7744 ")x\");", 7745 getGoogleStyleWithColumns(20))); 7746 EXPECT_EQ("fffffffffff(R\"x(\n" 7747 "multiline raw string literal xxxxxxxxxxxxxx\n" 7748 ")x\" + bbbbbb);", 7749 format("fffffffffff(R\"x(\n" 7750 "multiline raw string literal xxxxxxxxxxxxxx\n" 7751 ")x\" + bbbbbb);", 7752 getGoogleStyleWithColumns(20))); 7753 EXPECT_EQ("fffffffffff(\n" 7754 " R\"x(\n" 7755 "multiline raw string literal xxxxxxxxxxxxxx\n" 7756 ")x\" +\n" 7757 " bbbbbb);", 7758 format("fffffffffff(\n" 7759 " R\"x(\n" 7760 "multiline raw string literal xxxxxxxxxxxxxx\n" 7761 ")x\" + bbbbbb);", 7762 getGoogleStyleWithColumns(20))); 7763 } 7764 7765 TEST_F(FormatTest, SkipsUnknownStringLiterals) { 7766 verifyFormat("string a = \"unterminated;"); 7767 EXPECT_EQ("function(\"unterminated,\n" 7768 " OtherParameter);", 7769 format("function( \"unterminated,\n" 7770 " OtherParameter);")); 7771 } 7772 7773 TEST_F(FormatTest, DoesNotTryToParseUDLiteralsInPreCpp11Code) { 7774 FormatStyle Style = getLLVMStyle(); 7775 Style.Standard = FormatStyle::LS_Cpp03; 7776 EXPECT_EQ("#define x(_a) printf(\"foo\" _a);", 7777 format("#define x(_a) printf(\"foo\"_a);", Style)); 7778 } 7779 7780 TEST_F(FormatTest, UnderstandsCpp1y) { verifyFormat("int bi{1'000'000};"); } 7781 7782 TEST_F(FormatTest, BreakStringLiteralsBeforeUnbreakableTokenSequence) { 7783 EXPECT_EQ("someFunction(\"aaabbbcccd\"\n" 7784 " \"ddeeefff\");", 7785 format("someFunction(\"aaabbbcccdddeeefff\");", 7786 getLLVMStyleWithColumns(25))); 7787 EXPECT_EQ("someFunction1234567890(\n" 7788 " \"aaabbbcccdddeeefff\");", 7789 format("someFunction1234567890(\"aaabbbcccdddeeefff\");", 7790 getLLVMStyleWithColumns(26))); 7791 EXPECT_EQ("someFunction1234567890(\n" 7792 " \"aaabbbcccdddeeeff\"\n" 7793 " \"f\");", 7794 format("someFunction1234567890(\"aaabbbcccdddeeefff\");", 7795 getLLVMStyleWithColumns(25))); 7796 EXPECT_EQ("someFunction1234567890(\n" 7797 " \"aaabbbcccdddeeeff\"\n" 7798 " \"f\");", 7799 format("someFunction1234567890(\"aaabbbcccdddeeefff\");", 7800 getLLVMStyleWithColumns(24))); 7801 EXPECT_EQ("someFunction(\"aaabbbcc \"\n" 7802 " \"ddde \"\n" 7803 " \"efff\");", 7804 format("someFunction(\"aaabbbcc ddde efff\");", 7805 getLLVMStyleWithColumns(25))); 7806 EXPECT_EQ("someFunction(\"aaabbbccc \"\n" 7807 " \"ddeeefff\");", 7808 format("someFunction(\"aaabbbccc ddeeefff\");", 7809 getLLVMStyleWithColumns(25))); 7810 EXPECT_EQ("someFunction1234567890(\n" 7811 " \"aaabb \"\n" 7812 " \"cccdddeeefff\");", 7813 format("someFunction1234567890(\"aaabb cccdddeeefff\");", 7814 getLLVMStyleWithColumns(25))); 7815 EXPECT_EQ("#define A \\\n" 7816 " string s = \\\n" 7817 " \"123456789\" \\\n" 7818 " \"0\"; \\\n" 7819 " int i;", 7820 format("#define A string s = \"1234567890\"; int i;", 7821 getLLVMStyleWithColumns(20))); 7822 // FIXME: Put additional penalties on breaking at non-whitespace locations. 7823 EXPECT_EQ("someFunction(\"aaabbbcc \"\n" 7824 " \"dddeeeff\"\n" 7825 " \"f\");", 7826 format("someFunction(\"aaabbbcc dddeeefff\");", 7827 getLLVMStyleWithColumns(25))); 7828 } 7829 7830 TEST_F(FormatTest, DoNotBreakStringLiteralsInEscapeSequence) { 7831 EXPECT_EQ("\"\\a\"", format("\"\\a\"", getLLVMStyleWithColumns(3))); 7832 EXPECT_EQ("\"\\\"", format("\"\\\"", getLLVMStyleWithColumns(2))); 7833 EXPECT_EQ("\"test\"\n" 7834 "\"\\n\"", 7835 format("\"test\\n\"", getLLVMStyleWithColumns(7))); 7836 EXPECT_EQ("\"tes\\\\\"\n" 7837 "\"n\"", 7838 format("\"tes\\\\n\"", getLLVMStyleWithColumns(7))); 7839 EXPECT_EQ("\"\\\\\\\\\"\n" 7840 "\"\\n\"", 7841 format("\"\\\\\\\\\\n\"", getLLVMStyleWithColumns(7))); 7842 EXPECT_EQ("\"\\uff01\"", format("\"\\uff01\"", getLLVMStyleWithColumns(7))); 7843 EXPECT_EQ("\"\\uff01\"\n" 7844 "\"test\"", 7845 format("\"\\uff01test\"", getLLVMStyleWithColumns(8))); 7846 EXPECT_EQ("\"\\Uff01ff02\"", 7847 format("\"\\Uff01ff02\"", getLLVMStyleWithColumns(11))); 7848 EXPECT_EQ("\"\\x000000000001\"\n" 7849 "\"next\"", 7850 format("\"\\x000000000001next\"", getLLVMStyleWithColumns(16))); 7851 EXPECT_EQ("\"\\x000000000001next\"", 7852 format("\"\\x000000000001next\"", getLLVMStyleWithColumns(15))); 7853 EXPECT_EQ("\"\\x000000000001\"", 7854 format("\"\\x000000000001\"", getLLVMStyleWithColumns(7))); 7855 EXPECT_EQ("\"test\"\n" 7856 "\"\\000000\"\n" 7857 "\"000001\"", 7858 format("\"test\\000000000001\"", getLLVMStyleWithColumns(9))); 7859 EXPECT_EQ("\"test\\000\"\n" 7860 "\"00000000\"\n" 7861 "\"1\"", 7862 format("\"test\\000000000001\"", getLLVMStyleWithColumns(10))); 7863 } 7864 7865 TEST_F(FormatTest, DoNotCreateUnreasonableUnwrappedLines) { 7866 verifyFormat("void f() {\n" 7867 " return g() {}\n" 7868 " void h() {}"); 7869 verifyFormat("int a[] = {void forgot_closing_brace(){f();\n" 7870 "g();\n" 7871 "}"); 7872 } 7873 7874 TEST_F(FormatTest, DoNotPrematurelyEndUnwrappedLineForReturnStatements) { 7875 verifyFormat( 7876 "void f() { return C{param1, param2}.SomeCall(param1, param2); }"); 7877 } 7878 7879 TEST_F(FormatTest, FormatsClosingBracesInEmptyNestedBlocks) { 7880 verifyFormat("class X {\n" 7881 " void f() {\n" 7882 " }\n" 7883 "};", 7884 getLLVMStyleWithColumns(12)); 7885 } 7886 7887 TEST_F(FormatTest, ConfigurableIndentWidth) { 7888 FormatStyle EightIndent = getLLVMStyleWithColumns(18); 7889 EightIndent.IndentWidth = 8; 7890 EightIndent.ContinuationIndentWidth = 8; 7891 verifyFormat("void f() {\n" 7892 " someFunction();\n" 7893 " if (true) {\n" 7894 " f();\n" 7895 " }\n" 7896 "}", 7897 EightIndent); 7898 verifyFormat("class X {\n" 7899 " void f() {\n" 7900 " }\n" 7901 "};", 7902 EightIndent); 7903 verifyFormat("int x[] = {\n" 7904 " call(),\n" 7905 " call()};", 7906 EightIndent); 7907 } 7908 7909 TEST_F(FormatTest, ConfigurableFunctionDeclarationIndentAfterType) { 7910 verifyFormat("double\n" 7911 "f();", 7912 getLLVMStyleWithColumns(8)); 7913 } 7914 7915 TEST_F(FormatTest, ConfigurableUseOfTab) { 7916 FormatStyle Tab = getLLVMStyleWithColumns(42); 7917 Tab.IndentWidth = 8; 7918 Tab.UseTab = FormatStyle::UT_Always; 7919 Tab.AlignEscapedNewlinesLeft = true; 7920 7921 EXPECT_EQ("if (aaaaaaaa && // q\n" 7922 " bb)\t\t// w\n" 7923 "\t;", 7924 format("if (aaaaaaaa &&// q\n" 7925 "bb)// w\n" 7926 ";", 7927 Tab)); 7928 EXPECT_EQ("if (aaa && bbb) // w\n" 7929 "\t;", 7930 format("if(aaa&&bbb)// w\n" 7931 ";", 7932 Tab)); 7933 7934 verifyFormat("class X {\n" 7935 "\tvoid f() {\n" 7936 "\t\tsomeFunction(parameter1,\n" 7937 "\t\t\t parameter2);\n" 7938 "\t}\n" 7939 "};", 7940 Tab); 7941 verifyFormat("#define A \\\n" 7942 "\tvoid f() { \\\n" 7943 "\t\tsomeFunction( \\\n" 7944 "\t\t parameter1, \\\n" 7945 "\t\t parameter2); \\\n" 7946 "\t}", 7947 Tab); 7948 EXPECT_EQ("void f() {\n" 7949 "\tf();\n" 7950 "\tg();\n" 7951 "}", 7952 format("void f() {\n" 7953 "\tf();\n" 7954 "\tg();\n" 7955 "}", 7956 0, 0, Tab)); 7957 EXPECT_EQ("void f() {\n" 7958 "\tf();\n" 7959 "\tg();\n" 7960 "}", 7961 format("void f() {\n" 7962 "\tf();\n" 7963 "\tg();\n" 7964 "}", 7965 16, 0, Tab)); 7966 EXPECT_EQ("void f() {\n" 7967 " \tf();\n" 7968 "\tg();\n" 7969 "}", 7970 format("void f() {\n" 7971 " \tf();\n" 7972 " \tg();\n" 7973 "}", 7974 21, 0, Tab)); 7975 7976 Tab.TabWidth = 4; 7977 Tab.IndentWidth = 8; 7978 verifyFormat("class TabWidth4Indent8 {\n" 7979 "\t\tvoid f() {\n" 7980 "\t\t\t\tsomeFunction(parameter1,\n" 7981 "\t\t\t\t\t\t\t parameter2);\n" 7982 "\t\t}\n" 7983 "};", 7984 Tab); 7985 7986 Tab.TabWidth = 4; 7987 Tab.IndentWidth = 4; 7988 verifyFormat("class TabWidth4Indent4 {\n" 7989 "\tvoid f() {\n" 7990 "\t\tsomeFunction(parameter1,\n" 7991 "\t\t\t\t\t parameter2);\n" 7992 "\t}\n" 7993 "};", 7994 Tab); 7995 7996 Tab.TabWidth = 8; 7997 Tab.IndentWidth = 4; 7998 verifyFormat("class TabWidth8Indent4 {\n" 7999 " void f() {\n" 8000 "\tsomeFunction(parameter1,\n" 8001 "\t\t parameter2);\n" 8002 " }\n" 8003 "};", 8004 Tab); 8005 8006 Tab.TabWidth = 8; 8007 Tab.IndentWidth = 8; 8008 EXPECT_EQ("/*\n" 8009 "\t a\t\tcomment\n" 8010 "\t in multiple lines\n" 8011 " */", 8012 format(" /*\t \t \n" 8013 " \t \t a\t\tcomment\t \t\n" 8014 " \t \t in multiple lines\t\n" 8015 " \t */", 8016 Tab)); 8017 8018 Tab.UseTab = FormatStyle::UT_ForIndentation; 8019 verifyFormat("{\n" 8020 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8021 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8022 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8023 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8024 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8025 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 8026 "};", 8027 Tab); 8028 verifyFormat("enum A {\n" 8029 "\ta1, // Force multiple lines\n" 8030 "\ta2,\n" 8031 "\ta3\n" 8032 "};", 8033 Tab); 8034 EXPECT_EQ("if (aaaaaaaa && // q\n" 8035 " bb) // w\n" 8036 "\t;", 8037 format("if (aaaaaaaa &&// q\n" 8038 "bb)// w\n" 8039 ";", 8040 Tab)); 8041 verifyFormat("class X {\n" 8042 "\tvoid f() {\n" 8043 "\t\tsomeFunction(parameter1,\n" 8044 "\t\t parameter2);\n" 8045 "\t}\n" 8046 "};", 8047 Tab); 8048 verifyFormat("{\n" 8049 "\tQ({\n" 8050 "\t\tint a;\n" 8051 "\t\tsomeFunction(aaaaaaaa,\n" 8052 "\t\t bbbbbbb);\n" 8053 "\t}, p);\n" 8054 "}", 8055 Tab); 8056 EXPECT_EQ("{\n" 8057 "\t/* aaaa\n" 8058 "\t bbbb */\n" 8059 "}", 8060 format("{\n" 8061 "/* aaaa\n" 8062 " bbbb */\n" 8063 "}", 8064 Tab)); 8065 EXPECT_EQ("{\n" 8066 "\t/*\n" 8067 "\t aaaaaaaaaaaaaaaaaaaaaaaaaa\n" 8068 "\t bbbbbbbbbbbbb\n" 8069 "\t*/\n" 8070 "}", 8071 format("{\n" 8072 "/*\n" 8073 " aaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbb\n" 8074 "*/\n" 8075 "}", 8076 Tab)); 8077 EXPECT_EQ("{\n" 8078 "\t// aaaaaaaaaaaaaaaaaaaaaaaaaa\n" 8079 "\t// bbbbbbbbbbbbb\n" 8080 "}", 8081 format("{\n" 8082 "\t// aaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbb\n" 8083 "}", 8084 Tab)); 8085 EXPECT_EQ("{\n" 8086 "\t/*\n" 8087 "\t aaaaaaaaaaaaaaaaaaaaaaaaaa\n" 8088 "\t bbbbbbbbbbbbb\n" 8089 "\t*/\n" 8090 "}", 8091 format("{\n" 8092 "\t/*\n" 8093 "\t aaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbb\n" 8094 "\t*/\n" 8095 "}", 8096 Tab)); 8097 EXPECT_EQ("{\n" 8098 "\t/*\n" 8099 "\n" 8100 "\t*/\n" 8101 "}", 8102 format("{\n" 8103 "\t/*\n" 8104 "\n" 8105 "\t*/\n" 8106 "}", 8107 Tab)); 8108 EXPECT_EQ("{\n" 8109 "\t/*\n" 8110 " asdf\n" 8111 "\t*/\n" 8112 "}", 8113 format("{\n" 8114 "\t/*\n" 8115 " asdf\n" 8116 "\t*/\n" 8117 "}", 8118 Tab)); 8119 8120 Tab.UseTab = FormatStyle::UT_Never; 8121 EXPECT_EQ("/*\n" 8122 " a\t\tcomment\n" 8123 " in multiple lines\n" 8124 " */", 8125 format(" /*\t \t \n" 8126 " \t \t a\t\tcomment\t \t\n" 8127 " \t \t in multiple lines\t\n" 8128 " \t */", 8129 Tab)); 8130 EXPECT_EQ("/* some\n" 8131 " comment */", 8132 format(" \t \t /* some\n" 8133 " \t \t comment */", 8134 Tab)); 8135 EXPECT_EQ("int a; /* some\n" 8136 " comment */", 8137 format(" \t \t int a; /* some\n" 8138 " \t \t comment */", 8139 Tab)); 8140 8141 EXPECT_EQ("int a; /* some\n" 8142 "comment */", 8143 format(" \t \t int\ta; /* some\n" 8144 " \t \t comment */", 8145 Tab)); 8146 EXPECT_EQ("f(\"\t\t\"); /* some\n" 8147 " comment */", 8148 format(" \t \t f(\"\t\t\"); /* some\n" 8149 " \t \t comment */", 8150 Tab)); 8151 EXPECT_EQ("{\n" 8152 " /*\n" 8153 " * Comment\n" 8154 " */\n" 8155 " int i;\n" 8156 "}", 8157 format("{\n" 8158 "\t/*\n" 8159 "\t * Comment\n" 8160 "\t */\n" 8161 "\t int i;\n" 8162 "}")); 8163 } 8164 8165 TEST_F(FormatTest, CalculatesOriginalColumn) { 8166 EXPECT_EQ("\"qqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 8167 "q\"; /* some\n" 8168 " comment */", 8169 format(" \"qqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 8170 "q\"; /* some\n" 8171 " comment */", 8172 getLLVMStyle())); 8173 EXPECT_EQ("// qqqqqqqqqqqqqqqqqqqqqqqqqq\n" 8174 "/* some\n" 8175 " comment */", 8176 format("// qqqqqqqqqqqqqqqqqqqqqqqqqq\n" 8177 " /* some\n" 8178 " comment */", 8179 getLLVMStyle())); 8180 EXPECT_EQ("// qqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 8181 "qqq\n" 8182 "/* some\n" 8183 " comment */", 8184 format("// qqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 8185 "qqq\n" 8186 " /* some\n" 8187 " comment */", 8188 getLLVMStyle())); 8189 EXPECT_EQ("inttt qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 8190 "wwww; /* some\n" 8191 " comment */", 8192 format(" inttt qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 8193 "wwww; /* some\n" 8194 " comment */", 8195 getLLVMStyle())); 8196 } 8197 8198 TEST_F(FormatTest, ConfigurableSpaceBeforeParens) { 8199 FormatStyle NoSpace = getLLVMStyle(); 8200 NoSpace.SpaceBeforeParens = FormatStyle::SBPO_Never; 8201 8202 verifyFormat("while(true)\n" 8203 " continue;", 8204 NoSpace); 8205 verifyFormat("for(;;)\n" 8206 " continue;", 8207 NoSpace); 8208 verifyFormat("if(true)\n" 8209 " f();\n" 8210 "else if(true)\n" 8211 " f();", 8212 NoSpace); 8213 verifyFormat("do {\n" 8214 " do_something();\n" 8215 "} while(something());", 8216 NoSpace); 8217 verifyFormat("switch(x) {\n" 8218 "default:\n" 8219 " break;\n" 8220 "}", 8221 NoSpace); 8222 verifyFormat("auto i = std::make_unique<int>(5);", NoSpace); 8223 verifyFormat("size_t x = sizeof(x);", NoSpace); 8224 verifyFormat("auto f(int x) -> decltype(x);", NoSpace); 8225 verifyFormat("int f(T x) noexcept(x.create());", NoSpace); 8226 verifyFormat("alignas(128) char a[128];", NoSpace); 8227 verifyFormat("size_t x = alignof(MyType);", NoSpace); 8228 verifyFormat("static_assert(sizeof(char) == 1, \"Impossible!\");", NoSpace); 8229 verifyFormat("int f() throw(Deprecated);", NoSpace); 8230 8231 FormatStyle Space = getLLVMStyle(); 8232 Space.SpaceBeforeParens = FormatStyle::SBPO_Always; 8233 8234 verifyFormat("int f ();", Space); 8235 verifyFormat("void f (int a, T b) {\n" 8236 " while (true)\n" 8237 " continue;\n" 8238 "}", 8239 Space); 8240 verifyFormat("if (true)\n" 8241 " f ();\n" 8242 "else if (true)\n" 8243 " f ();", 8244 Space); 8245 verifyFormat("do {\n" 8246 " do_something ();\n" 8247 "} while (something ());", 8248 Space); 8249 verifyFormat("switch (x) {\n" 8250 "default:\n" 8251 " break;\n" 8252 "}", 8253 Space); 8254 verifyFormat("A::A () : a (1) {}", Space); 8255 verifyFormat("void f () __attribute__ ((asdf));", Space); 8256 verifyFormat("*(&a + 1);\n" 8257 "&((&a)[1]);\n" 8258 "a[(b + c) * d];\n" 8259 "(((a + 1) * 2) + 3) * 4;", 8260 Space); 8261 verifyFormat("#define A(x) x", Space); 8262 verifyFormat("#define A (x) x", Space); 8263 verifyFormat("#if defined(x)\n" 8264 "#endif", 8265 Space); 8266 verifyFormat("auto i = std::make_unique<int> (5);", Space); 8267 verifyFormat("size_t x = sizeof (x);", Space); 8268 verifyFormat("auto f (int x) -> decltype (x);", Space); 8269 verifyFormat("int f (T x) noexcept (x.create ());", Space); 8270 verifyFormat("alignas (128) char a[128];", Space); 8271 verifyFormat("size_t x = alignof (MyType);", Space); 8272 verifyFormat("static_assert (sizeof (char) == 1, \"Impossible!\");", Space); 8273 verifyFormat("int f () throw (Deprecated);", Space); 8274 } 8275 8276 TEST_F(FormatTest, ConfigurableSpacesInParentheses) { 8277 FormatStyle Spaces = getLLVMStyle(); 8278 8279 Spaces.SpacesInParentheses = true; 8280 verifyFormat("call( x, y, z );", Spaces); 8281 verifyFormat("call();", Spaces); 8282 verifyFormat("std::function<void( int, int )> callback;", Spaces); 8283 verifyFormat("while ( (bool)1 )\n" 8284 " continue;", 8285 Spaces); 8286 verifyFormat("for ( ;; )\n" 8287 " continue;", 8288 Spaces); 8289 verifyFormat("if ( true )\n" 8290 " f();\n" 8291 "else if ( true )\n" 8292 " f();", 8293 Spaces); 8294 verifyFormat("do {\n" 8295 " do_something( (int)i );\n" 8296 "} while ( something() );", 8297 Spaces); 8298 verifyFormat("switch ( x ) {\n" 8299 "default:\n" 8300 " break;\n" 8301 "}", 8302 Spaces); 8303 8304 Spaces.SpacesInParentheses = false; 8305 Spaces.SpacesInCStyleCastParentheses = true; 8306 verifyFormat("Type *A = ( Type * )P;", Spaces); 8307 verifyFormat("Type *A = ( vector<Type *, int *> )P;", Spaces); 8308 verifyFormat("x = ( int32 )y;", Spaces); 8309 verifyFormat("int a = ( int )(2.0f);", Spaces); 8310 verifyFormat("#define AA(X) sizeof((( X * )NULL)->a)", Spaces); 8311 verifyFormat("my_int a = ( my_int )sizeof(int);", Spaces); 8312 verifyFormat("#define x (( int )-1)", Spaces); 8313 8314 // Run the first set of tests again with: 8315 Spaces.SpacesInParentheses = false, Spaces.SpaceInEmptyParentheses = true; 8316 Spaces.SpacesInCStyleCastParentheses = true; 8317 verifyFormat("call(x, y, z);", Spaces); 8318 verifyFormat("call( );", Spaces); 8319 verifyFormat("std::function<void(int, int)> callback;", Spaces); 8320 verifyFormat("while (( bool )1)\n" 8321 " continue;", 8322 Spaces); 8323 verifyFormat("for (;;)\n" 8324 " continue;", 8325 Spaces); 8326 verifyFormat("if (true)\n" 8327 " f( );\n" 8328 "else if (true)\n" 8329 " f( );", 8330 Spaces); 8331 verifyFormat("do {\n" 8332 " do_something(( int )i);\n" 8333 "} while (something( ));", 8334 Spaces); 8335 verifyFormat("switch (x) {\n" 8336 "default:\n" 8337 " break;\n" 8338 "}", 8339 Spaces); 8340 8341 // Run the first set of tests again with: 8342 Spaces.SpaceAfterCStyleCast = true; 8343 verifyFormat("call(x, y, z);", Spaces); 8344 verifyFormat("call( );", Spaces); 8345 verifyFormat("std::function<void(int, int)> callback;", Spaces); 8346 verifyFormat("while (( bool ) 1)\n" 8347 " continue;", 8348 Spaces); 8349 verifyFormat("for (;;)\n" 8350 " continue;", 8351 Spaces); 8352 verifyFormat("if (true)\n" 8353 " f( );\n" 8354 "else if (true)\n" 8355 " f( );", 8356 Spaces); 8357 verifyFormat("do {\n" 8358 " do_something(( int ) i);\n" 8359 "} while (something( ));", 8360 Spaces); 8361 verifyFormat("switch (x) {\n" 8362 "default:\n" 8363 " break;\n" 8364 "}", 8365 Spaces); 8366 8367 // Run subset of tests again with: 8368 Spaces.SpacesInCStyleCastParentheses = false; 8369 Spaces.SpaceAfterCStyleCast = true; 8370 verifyFormat("while ((bool) 1)\n" 8371 " continue;", 8372 Spaces); 8373 verifyFormat("do {\n" 8374 " do_something((int) i);\n" 8375 "} while (something( ));", 8376 Spaces); 8377 } 8378 8379 TEST_F(FormatTest, ConfigurableSpacesInSquareBrackets) { 8380 verifyFormat("int a[5];"); 8381 verifyFormat("a[3] += 42;"); 8382 8383 FormatStyle Spaces = getLLVMStyle(); 8384 Spaces.SpacesInSquareBrackets = true; 8385 // Lambdas unchanged. 8386 verifyFormat("int c = []() -> int { return 2; }();\n", Spaces); 8387 verifyFormat("return [i, args...] {};", Spaces); 8388 8389 // Not lambdas. 8390 verifyFormat("int a[ 5 ];", Spaces); 8391 verifyFormat("a[ 3 ] += 42;", Spaces); 8392 verifyFormat("constexpr char hello[]{\"hello\"};", Spaces); 8393 verifyFormat("double &operator[](int i) { return 0; }\n" 8394 "int i;", 8395 Spaces); 8396 verifyFormat("std::unique_ptr<int[]> foo() {}", Spaces); 8397 verifyFormat("int i = a[ a ][ a ]->f();", Spaces); 8398 verifyFormat("int i = (*b)[ a ]->f();", Spaces); 8399 } 8400 8401 TEST_F(FormatTest, ConfigurableSpaceBeforeAssignmentOperators) { 8402 verifyFormat("int a = 5;"); 8403 verifyFormat("a += 42;"); 8404 verifyFormat("a or_eq 8;"); 8405 8406 FormatStyle Spaces = getLLVMStyle(); 8407 Spaces.SpaceBeforeAssignmentOperators = false; 8408 verifyFormat("int a= 5;", Spaces); 8409 verifyFormat("a+= 42;", Spaces); 8410 verifyFormat("a or_eq 8;", Spaces); 8411 } 8412 8413 TEST_F(FormatTest, AlignConsecutiveAssignments) { 8414 FormatStyle Alignment = getLLVMStyle(); 8415 Alignment.AlignConsecutiveAssignments = false; 8416 verifyFormat("int a = 5;\n" 8417 "int oneTwoThree = 123;", 8418 Alignment); 8419 verifyFormat("int a = 5;\n" 8420 "int oneTwoThree = 123;", 8421 Alignment); 8422 8423 Alignment.AlignConsecutiveAssignments = true; 8424 verifyFormat("int a = 5;\n" 8425 "int oneTwoThree = 123;", 8426 Alignment); 8427 verifyFormat("int a = method();\n" 8428 "int oneTwoThree = 133;", 8429 Alignment); 8430 verifyFormat("a &= 5;\n" 8431 "bcd *= 5;\n" 8432 "ghtyf += 5;\n" 8433 "dvfvdb -= 5;\n" 8434 "a /= 5;\n" 8435 "vdsvsv %= 5;\n" 8436 "sfdbddfbdfbb ^= 5;\n" 8437 "dvsdsv |= 5;\n" 8438 "int dsvvdvsdvvv = 123;", 8439 Alignment); 8440 verifyFormat("int i = 1, j = 10;\n" 8441 "something = 2000;", 8442 Alignment); 8443 verifyFormat("something = 2000;\n" 8444 "int i = 1, j = 10;\n", 8445 Alignment); 8446 verifyFormat("something = 2000;\n" 8447 "another = 911;\n" 8448 "int i = 1, j = 10;\n" 8449 "oneMore = 1;\n" 8450 "i = 2;", 8451 Alignment); 8452 verifyFormat("int a = 5;\n" 8453 "int one = 1;\n" 8454 "method();\n" 8455 "int oneTwoThree = 123;\n" 8456 "int oneTwo = 12;", 8457 Alignment); 8458 verifyFormat("int oneTwoThree = 123; // comment\n" 8459 "int oneTwo = 12; // comment", 8460 Alignment); 8461 EXPECT_EQ("int a = 5;\n" 8462 "\n" 8463 "int oneTwoThree = 123;", 8464 format("int a = 5;\n" 8465 "\n" 8466 "int oneTwoThree= 123;", 8467 Alignment)); 8468 EXPECT_EQ("int a = 5;\n" 8469 "int one = 1;\n" 8470 "\n" 8471 "int oneTwoThree = 123;", 8472 format("int a = 5;\n" 8473 "int one = 1;\n" 8474 "\n" 8475 "int oneTwoThree = 123;", 8476 Alignment)); 8477 EXPECT_EQ("int a = 5;\n" 8478 "int one = 1;\n" 8479 "\n" 8480 "int oneTwoThree = 123;\n" 8481 "int oneTwo = 12;", 8482 format("int a = 5;\n" 8483 "int one = 1;\n" 8484 "\n" 8485 "int oneTwoThree = 123;\n" 8486 "int oneTwo = 12;", 8487 Alignment)); 8488 Alignment.AlignEscapedNewlinesLeft = true; 8489 verifyFormat("#define A \\\n" 8490 " int aaaa = 12; \\\n" 8491 " int b = 23; \\\n" 8492 " int ccc = 234; \\\n" 8493 " int dddddddddd = 2345;", 8494 Alignment); 8495 Alignment.AlignEscapedNewlinesLeft = false; 8496 verifyFormat("#define A " 8497 " \\\n" 8498 " int aaaa = 12; " 8499 " \\\n" 8500 " int b = 23; " 8501 " \\\n" 8502 " int ccc = 234; " 8503 " \\\n" 8504 " int dddddddddd = 2345;", 8505 Alignment); 8506 verifyFormat("void SomeFunction(int parameter = 1, int i = 2, int j = 3, int " 8507 "k = 4, int l = 5,\n" 8508 " int m = 6) {\n" 8509 " int j = 10;\n" 8510 " otherThing = 1;\n" 8511 "}", 8512 Alignment); 8513 verifyFormat("void SomeFunction(int parameter = 0) {\n" 8514 " int i = 1;\n" 8515 " int j = 2;\n" 8516 " int big = 10000;\n" 8517 "}", 8518 Alignment); 8519 verifyFormat("class C {\n" 8520 "public:\n" 8521 " int i = 1;\n" 8522 " virtual void f() = 0;\n" 8523 "};", 8524 Alignment); 8525 verifyFormat("int i = 1;\n" 8526 "if (SomeType t = getSomething()) {\n" 8527 "}\n" 8528 "int j = 2;\n" 8529 "int big = 10000;", 8530 Alignment); 8531 verifyFormat("int j = 7;\n" 8532 "for (int k = 0; k < N; ++k) {\n" 8533 "}\n" 8534 "int j = 2;\n" 8535 "int big = 10000;\n" 8536 "}", 8537 Alignment); 8538 Alignment.BreakBeforeBinaryOperators = FormatStyle::BOS_All; 8539 verifyFormat("int i = 1;\n" 8540 "LooooooooooongType loooooooooooooooooooooongVariable\n" 8541 " = someLooooooooooooooooongFunction();\n" 8542 "int j = 2;", 8543 Alignment); 8544 Alignment.BreakBeforeBinaryOperators = FormatStyle::BOS_None; 8545 verifyFormat("int i = 1;\n" 8546 "LooooooooooongType loooooooooooooooooooooongVariable =\n" 8547 " someLooooooooooooooooongFunction();\n" 8548 "int j = 2;", 8549 Alignment); 8550 // FIXME: Should align all three assignments 8551 verifyFormat( 8552 "int i = 1;\n" 8553 "SomeType a = SomeFunction(looooooooooooooooooooooongParameterA,\n" 8554 " loooooooooooooooooooooongParameterB);\n" 8555 "int j = 2;", 8556 Alignment); 8557 } 8558 8559 TEST_F(FormatTest, LinuxBraceBreaking) { 8560 FormatStyle LinuxBraceStyle = getLLVMStyle(); 8561 LinuxBraceStyle.BreakBeforeBraces = FormatStyle::BS_Linux; 8562 verifyFormat("namespace a\n" 8563 "{\n" 8564 "class A\n" 8565 "{\n" 8566 " void f()\n" 8567 " {\n" 8568 " if (true) {\n" 8569 " a();\n" 8570 " b();\n" 8571 " }\n" 8572 " }\n" 8573 " void g() { return; }\n" 8574 "};\n" 8575 "struct B {\n" 8576 " int x;\n" 8577 "};\n" 8578 "}\n", 8579 LinuxBraceStyle); 8580 verifyFormat("enum X {\n" 8581 " Y = 0,\n" 8582 "}\n", 8583 LinuxBraceStyle); 8584 verifyFormat("struct S {\n" 8585 " int Type;\n" 8586 " union {\n" 8587 " int x;\n" 8588 " double y;\n" 8589 " } Value;\n" 8590 " class C\n" 8591 " {\n" 8592 " MyFavoriteType Value;\n" 8593 " } Class;\n" 8594 "}\n", 8595 LinuxBraceStyle); 8596 } 8597 8598 TEST_F(FormatTest, StroustrupBraceBreaking) { 8599 FormatStyle StroustrupBraceStyle = getLLVMStyle(); 8600 StroustrupBraceStyle.BreakBeforeBraces = FormatStyle::BS_Stroustrup; 8601 verifyFormat("namespace a {\n" 8602 "class A {\n" 8603 " void f()\n" 8604 " {\n" 8605 " if (true) {\n" 8606 " a();\n" 8607 " b();\n" 8608 " }\n" 8609 " }\n" 8610 " void g() { return; }\n" 8611 "};\n" 8612 "struct B {\n" 8613 " int x;\n" 8614 "};\n" 8615 "}\n", 8616 StroustrupBraceStyle); 8617 8618 verifyFormat("void foo()\n" 8619 "{\n" 8620 " if (a) {\n" 8621 " a();\n" 8622 " }\n" 8623 " else {\n" 8624 " b();\n" 8625 " }\n" 8626 "}\n", 8627 StroustrupBraceStyle); 8628 8629 verifyFormat("#ifdef _DEBUG\n" 8630 "int foo(int i = 0)\n" 8631 "#else\n" 8632 "int foo(int i = 5)\n" 8633 "#endif\n" 8634 "{\n" 8635 " return i;\n" 8636 "}", 8637 StroustrupBraceStyle); 8638 8639 verifyFormat("void foo() {}\n" 8640 "void bar()\n" 8641 "#ifdef _DEBUG\n" 8642 "{\n" 8643 " foo();\n" 8644 "}\n" 8645 "#else\n" 8646 "{\n" 8647 "}\n" 8648 "#endif", 8649 StroustrupBraceStyle); 8650 8651 verifyFormat("void foobar() { int i = 5; }\n" 8652 "#ifdef _DEBUG\n" 8653 "void bar() {}\n" 8654 "#else\n" 8655 "void bar() { foobar(); }\n" 8656 "#endif", 8657 StroustrupBraceStyle); 8658 } 8659 8660 TEST_F(FormatTest, AllmanBraceBreaking) { 8661 FormatStyle AllmanBraceStyle = getLLVMStyle(); 8662 AllmanBraceStyle.BreakBeforeBraces = FormatStyle::BS_Allman; 8663 verifyFormat("namespace a\n" 8664 "{\n" 8665 "class A\n" 8666 "{\n" 8667 " void f()\n" 8668 " {\n" 8669 " if (true)\n" 8670 " {\n" 8671 " a();\n" 8672 " b();\n" 8673 " }\n" 8674 " }\n" 8675 " void g() { return; }\n" 8676 "};\n" 8677 "struct B\n" 8678 "{\n" 8679 " int x;\n" 8680 "};\n" 8681 "}", 8682 AllmanBraceStyle); 8683 8684 verifyFormat("void f()\n" 8685 "{\n" 8686 " if (true)\n" 8687 " {\n" 8688 " a();\n" 8689 " }\n" 8690 " else if (false)\n" 8691 " {\n" 8692 " b();\n" 8693 " }\n" 8694 " else\n" 8695 " {\n" 8696 " c();\n" 8697 " }\n" 8698 "}\n", 8699 AllmanBraceStyle); 8700 8701 verifyFormat("void f()\n" 8702 "{\n" 8703 " for (int i = 0; i < 10; ++i)\n" 8704 " {\n" 8705 " a();\n" 8706 " }\n" 8707 " while (false)\n" 8708 " {\n" 8709 " b();\n" 8710 " }\n" 8711 " do\n" 8712 " {\n" 8713 " c();\n" 8714 " } while (false)\n" 8715 "}\n", 8716 AllmanBraceStyle); 8717 8718 verifyFormat("void f(int a)\n" 8719 "{\n" 8720 " switch (a)\n" 8721 " {\n" 8722 " case 0:\n" 8723 " break;\n" 8724 " case 1:\n" 8725 " {\n" 8726 " break;\n" 8727 " }\n" 8728 " case 2:\n" 8729 " {\n" 8730 " }\n" 8731 " break;\n" 8732 " default:\n" 8733 " break;\n" 8734 " }\n" 8735 "}\n", 8736 AllmanBraceStyle); 8737 8738 verifyFormat("enum X\n" 8739 "{\n" 8740 " Y = 0,\n" 8741 "}\n", 8742 AllmanBraceStyle); 8743 verifyFormat("enum X\n" 8744 "{\n" 8745 " Y = 0\n" 8746 "}\n", 8747 AllmanBraceStyle); 8748 8749 verifyFormat("@interface BSApplicationController ()\n" 8750 "{\n" 8751 "@private\n" 8752 " id _extraIvar;\n" 8753 "}\n" 8754 "@end\n", 8755 AllmanBraceStyle); 8756 8757 verifyFormat("#ifdef _DEBUG\n" 8758 "int foo(int i = 0)\n" 8759 "#else\n" 8760 "int foo(int i = 5)\n" 8761 "#endif\n" 8762 "{\n" 8763 " return i;\n" 8764 "}", 8765 AllmanBraceStyle); 8766 8767 verifyFormat("void foo() {}\n" 8768 "void bar()\n" 8769 "#ifdef _DEBUG\n" 8770 "{\n" 8771 " foo();\n" 8772 "}\n" 8773 "#else\n" 8774 "{\n" 8775 "}\n" 8776 "#endif", 8777 AllmanBraceStyle); 8778 8779 verifyFormat("void foobar() { int i = 5; }\n" 8780 "#ifdef _DEBUG\n" 8781 "void bar() {}\n" 8782 "#else\n" 8783 "void bar() { foobar(); }\n" 8784 "#endif", 8785 AllmanBraceStyle); 8786 8787 // This shouldn't affect ObjC blocks.. 8788 verifyFormat("[self doSomeThingWithACompletionHandler:^{\n" 8789 " // ...\n" 8790 " int i;\n" 8791 "}];", 8792 AllmanBraceStyle); 8793 verifyFormat("void (^block)(void) = ^{\n" 8794 " // ...\n" 8795 " int i;\n" 8796 "};", 8797 AllmanBraceStyle); 8798 // .. or dict literals. 8799 verifyFormat("void f()\n" 8800 "{\n" 8801 " [object someMethod:@{ @\"a\" : @\"b\" }];\n" 8802 "}", 8803 AllmanBraceStyle); 8804 verifyFormat("int f()\n" 8805 "{ // comment\n" 8806 " return 42;\n" 8807 "}", 8808 AllmanBraceStyle); 8809 8810 AllmanBraceStyle.ColumnLimit = 19; 8811 verifyFormat("void f() { int i; }", AllmanBraceStyle); 8812 AllmanBraceStyle.ColumnLimit = 18; 8813 verifyFormat("void f()\n" 8814 "{\n" 8815 " int i;\n" 8816 "}", 8817 AllmanBraceStyle); 8818 AllmanBraceStyle.ColumnLimit = 80; 8819 8820 FormatStyle BreakBeforeBraceShortIfs = AllmanBraceStyle; 8821 BreakBeforeBraceShortIfs.AllowShortIfStatementsOnASingleLine = true; 8822 BreakBeforeBraceShortIfs.AllowShortLoopsOnASingleLine = true; 8823 verifyFormat("void f(bool b)\n" 8824 "{\n" 8825 " if (b)\n" 8826 " {\n" 8827 " return;\n" 8828 " }\n" 8829 "}\n", 8830 BreakBeforeBraceShortIfs); 8831 verifyFormat("void f(bool b)\n" 8832 "{\n" 8833 " if (b) return;\n" 8834 "}\n", 8835 BreakBeforeBraceShortIfs); 8836 verifyFormat("void f(bool b)\n" 8837 "{\n" 8838 " while (b)\n" 8839 " {\n" 8840 " return;\n" 8841 " }\n" 8842 "}\n", 8843 BreakBeforeBraceShortIfs); 8844 } 8845 8846 TEST_F(FormatTest, GNUBraceBreaking) { 8847 FormatStyle GNUBraceStyle = getLLVMStyle(); 8848 GNUBraceStyle.BreakBeforeBraces = FormatStyle::BS_GNU; 8849 verifyFormat("namespace a\n" 8850 "{\n" 8851 "class A\n" 8852 "{\n" 8853 " void f()\n" 8854 " {\n" 8855 " int a;\n" 8856 " {\n" 8857 " int b;\n" 8858 " }\n" 8859 " if (true)\n" 8860 " {\n" 8861 " a();\n" 8862 " b();\n" 8863 " }\n" 8864 " }\n" 8865 " void g() { return; }\n" 8866 "}\n" 8867 "}", 8868 GNUBraceStyle); 8869 8870 verifyFormat("void f()\n" 8871 "{\n" 8872 " if (true)\n" 8873 " {\n" 8874 " a();\n" 8875 " }\n" 8876 " else if (false)\n" 8877 " {\n" 8878 " b();\n" 8879 " }\n" 8880 " else\n" 8881 " {\n" 8882 " c();\n" 8883 " }\n" 8884 "}\n", 8885 GNUBraceStyle); 8886 8887 verifyFormat("void f()\n" 8888 "{\n" 8889 " for (int i = 0; i < 10; ++i)\n" 8890 " {\n" 8891 " a();\n" 8892 " }\n" 8893 " while (false)\n" 8894 " {\n" 8895 " b();\n" 8896 " }\n" 8897 " do\n" 8898 " {\n" 8899 " c();\n" 8900 " }\n" 8901 " while (false);\n" 8902 "}\n", 8903 GNUBraceStyle); 8904 8905 verifyFormat("void f(int a)\n" 8906 "{\n" 8907 " switch (a)\n" 8908 " {\n" 8909 " case 0:\n" 8910 " break;\n" 8911 " case 1:\n" 8912 " {\n" 8913 " break;\n" 8914 " }\n" 8915 " case 2:\n" 8916 " {\n" 8917 " }\n" 8918 " break;\n" 8919 " default:\n" 8920 " break;\n" 8921 " }\n" 8922 "}\n", 8923 GNUBraceStyle); 8924 8925 verifyFormat("enum X\n" 8926 "{\n" 8927 " Y = 0,\n" 8928 "}\n", 8929 GNUBraceStyle); 8930 8931 verifyFormat("@interface BSApplicationController ()\n" 8932 "{\n" 8933 "@private\n" 8934 " id _extraIvar;\n" 8935 "}\n" 8936 "@end\n", 8937 GNUBraceStyle); 8938 8939 verifyFormat("#ifdef _DEBUG\n" 8940 "int foo(int i = 0)\n" 8941 "#else\n" 8942 "int foo(int i = 5)\n" 8943 "#endif\n" 8944 "{\n" 8945 " return i;\n" 8946 "}", 8947 GNUBraceStyle); 8948 8949 verifyFormat("void foo() {}\n" 8950 "void bar()\n" 8951 "#ifdef _DEBUG\n" 8952 "{\n" 8953 " foo();\n" 8954 "}\n" 8955 "#else\n" 8956 "{\n" 8957 "}\n" 8958 "#endif", 8959 GNUBraceStyle); 8960 8961 verifyFormat("void foobar() { int i = 5; }\n" 8962 "#ifdef _DEBUG\n" 8963 "void bar() {}\n" 8964 "#else\n" 8965 "void bar() { foobar(); }\n" 8966 "#endif", 8967 GNUBraceStyle); 8968 } 8969 TEST_F(FormatTest, CatchExceptionReferenceBinding) { 8970 verifyFormat("void f() {\n" 8971 " try {\n" 8972 " } catch (const Exception &e) {\n" 8973 " }\n" 8974 "}\n", 8975 getLLVMStyle()); 8976 } 8977 8978 TEST_F(FormatTest, UnderstandsPragmas) { 8979 verifyFormat("#pragma omp reduction(| : var)"); 8980 verifyFormat("#pragma omp reduction(+ : var)"); 8981 8982 EXPECT_EQ("#pragma mark Any non-hyphenated or hyphenated string " 8983 "(including parentheses).", 8984 format("#pragma mark Any non-hyphenated or hyphenated string " 8985 "(including parentheses).")); 8986 } 8987 8988 TEST_F(FormatTest, UnderstandPragmaOption) { 8989 verifyFormat("#pragma option -C -A"); 8990 8991 EXPECT_EQ("#pragma option -C -A", format("#pragma option -C -A")); 8992 } 8993 8994 #define EXPECT_ALL_STYLES_EQUAL(Styles) \ 8995 for (size_t i = 1; i < Styles.size(); ++i) \ 8996 EXPECT_EQ(Styles[0], Styles[i]) << "Style #" << i << " of " << Styles.size() \ 8997 << " differs from Style #0" 8998 8999 TEST_F(FormatTest, GetsPredefinedStyleByName) { 9000 SmallVector<FormatStyle, 3> Styles; 9001 Styles.resize(3); 9002 9003 Styles[0] = getLLVMStyle(); 9004 EXPECT_TRUE(getPredefinedStyle("LLVM", FormatStyle::LK_Cpp, &Styles[1])); 9005 EXPECT_TRUE(getPredefinedStyle("lLvM", FormatStyle::LK_Cpp, &Styles[2])); 9006 EXPECT_ALL_STYLES_EQUAL(Styles); 9007 9008 Styles[0] = getGoogleStyle(); 9009 EXPECT_TRUE(getPredefinedStyle("Google", FormatStyle::LK_Cpp, &Styles[1])); 9010 EXPECT_TRUE(getPredefinedStyle("gOOgle", FormatStyle::LK_Cpp, &Styles[2])); 9011 EXPECT_ALL_STYLES_EQUAL(Styles); 9012 9013 Styles[0] = getGoogleStyle(FormatStyle::LK_JavaScript); 9014 EXPECT_TRUE( 9015 getPredefinedStyle("Google", FormatStyle::LK_JavaScript, &Styles[1])); 9016 EXPECT_TRUE( 9017 getPredefinedStyle("gOOgle", FormatStyle::LK_JavaScript, &Styles[2])); 9018 EXPECT_ALL_STYLES_EQUAL(Styles); 9019 9020 Styles[0] = getChromiumStyle(FormatStyle::LK_Cpp); 9021 EXPECT_TRUE(getPredefinedStyle("Chromium", FormatStyle::LK_Cpp, &Styles[1])); 9022 EXPECT_TRUE(getPredefinedStyle("cHRoMiUM", FormatStyle::LK_Cpp, &Styles[2])); 9023 EXPECT_ALL_STYLES_EQUAL(Styles); 9024 9025 Styles[0] = getMozillaStyle(); 9026 EXPECT_TRUE(getPredefinedStyle("Mozilla", FormatStyle::LK_Cpp, &Styles[1])); 9027 EXPECT_TRUE(getPredefinedStyle("moZILla", FormatStyle::LK_Cpp, &Styles[2])); 9028 EXPECT_ALL_STYLES_EQUAL(Styles); 9029 9030 Styles[0] = getWebKitStyle(); 9031 EXPECT_TRUE(getPredefinedStyle("WebKit", FormatStyle::LK_Cpp, &Styles[1])); 9032 EXPECT_TRUE(getPredefinedStyle("wEbKit", FormatStyle::LK_Cpp, &Styles[2])); 9033 EXPECT_ALL_STYLES_EQUAL(Styles); 9034 9035 Styles[0] = getGNUStyle(); 9036 EXPECT_TRUE(getPredefinedStyle("GNU", FormatStyle::LK_Cpp, &Styles[1])); 9037 EXPECT_TRUE(getPredefinedStyle("gnU", FormatStyle::LK_Cpp, &Styles[2])); 9038 EXPECT_ALL_STYLES_EQUAL(Styles); 9039 9040 EXPECT_FALSE(getPredefinedStyle("qwerty", FormatStyle::LK_Cpp, &Styles[0])); 9041 } 9042 9043 TEST_F(FormatTest, GetsCorrectBasedOnStyle) { 9044 SmallVector<FormatStyle, 8> Styles; 9045 Styles.resize(2); 9046 9047 Styles[0] = getGoogleStyle(); 9048 Styles[1] = getLLVMStyle(); 9049 EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google", &Styles[1]).value()); 9050 EXPECT_ALL_STYLES_EQUAL(Styles); 9051 9052 Styles.resize(5); 9053 Styles[0] = getGoogleStyle(FormatStyle::LK_JavaScript); 9054 Styles[1] = getLLVMStyle(); 9055 Styles[1].Language = FormatStyle::LK_JavaScript; 9056 EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google", &Styles[1]).value()); 9057 9058 Styles[2] = getLLVMStyle(); 9059 Styles[2].Language = FormatStyle::LK_JavaScript; 9060 EXPECT_EQ(0, parseConfiguration("Language: JavaScript\n" 9061 "BasedOnStyle: Google", 9062 &Styles[2]).value()); 9063 9064 Styles[3] = getLLVMStyle(); 9065 Styles[3].Language = FormatStyle::LK_JavaScript; 9066 EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google\n" 9067 "Language: JavaScript", 9068 &Styles[3]).value()); 9069 9070 Styles[4] = getLLVMStyle(); 9071 Styles[4].Language = FormatStyle::LK_JavaScript; 9072 EXPECT_EQ(0, parseConfiguration("---\n" 9073 "BasedOnStyle: LLVM\n" 9074 "IndentWidth: 123\n" 9075 "---\n" 9076 "BasedOnStyle: Google\n" 9077 "Language: JavaScript", 9078 &Styles[4]).value()); 9079 EXPECT_ALL_STYLES_EQUAL(Styles); 9080 } 9081 9082 #define CHECK_PARSE_BOOL_FIELD(FIELD, CONFIG_NAME) \ 9083 Style.FIELD = false; \ 9084 EXPECT_EQ(0, parseConfiguration(CONFIG_NAME ": true", &Style).value()); \ 9085 EXPECT_TRUE(Style.FIELD); \ 9086 EXPECT_EQ(0, parseConfiguration(CONFIG_NAME ": false", &Style).value()); \ 9087 EXPECT_FALSE(Style.FIELD); 9088 9089 #define CHECK_PARSE_BOOL(FIELD) CHECK_PARSE_BOOL_FIELD(FIELD, #FIELD) 9090 9091 #define CHECK_PARSE(TEXT, FIELD, VALUE) \ 9092 EXPECT_NE(VALUE, Style.FIELD); \ 9093 EXPECT_EQ(0, parseConfiguration(TEXT, &Style).value()); \ 9094 EXPECT_EQ(VALUE, Style.FIELD) 9095 9096 TEST_F(FormatTest, ParsesConfigurationBools) { 9097 FormatStyle Style = {}; 9098 Style.Language = FormatStyle::LK_Cpp; 9099 CHECK_PARSE_BOOL(AlignAfterOpenBracket); 9100 CHECK_PARSE_BOOL(AlignEscapedNewlinesLeft); 9101 CHECK_PARSE_BOOL(AlignOperands); 9102 CHECK_PARSE_BOOL(AlignTrailingComments); 9103 CHECK_PARSE_BOOL(AlignConsecutiveAssignments); 9104 CHECK_PARSE_BOOL(AllowAllParametersOfDeclarationOnNextLine); 9105 CHECK_PARSE_BOOL(AllowShortBlocksOnASingleLine); 9106 CHECK_PARSE_BOOL(AllowShortCaseLabelsOnASingleLine); 9107 CHECK_PARSE_BOOL(AllowShortIfStatementsOnASingleLine); 9108 CHECK_PARSE_BOOL(AllowShortLoopsOnASingleLine); 9109 CHECK_PARSE_BOOL(AlwaysBreakAfterDefinitionReturnType); 9110 CHECK_PARSE_BOOL(AlwaysBreakTemplateDeclarations); 9111 CHECK_PARSE_BOOL(BinPackParameters); 9112 CHECK_PARSE_BOOL(BinPackArguments); 9113 CHECK_PARSE_BOOL(BreakBeforeTernaryOperators); 9114 CHECK_PARSE_BOOL(BreakConstructorInitializersBeforeComma); 9115 CHECK_PARSE_BOOL(ConstructorInitializerAllOnOneLineOrOnePerLine); 9116 CHECK_PARSE_BOOL(DerivePointerAlignment); 9117 CHECK_PARSE_BOOL_FIELD(DerivePointerAlignment, "DerivePointerBinding"); 9118 CHECK_PARSE_BOOL(IndentCaseLabels); 9119 CHECK_PARSE_BOOL(IndentWrappedFunctionNames); 9120 CHECK_PARSE_BOOL(KeepEmptyLinesAtTheStartOfBlocks); 9121 CHECK_PARSE_BOOL(ObjCSpaceAfterProperty); 9122 CHECK_PARSE_BOOL(ObjCSpaceBeforeProtocolList); 9123 CHECK_PARSE_BOOL(Cpp11BracedListStyle); 9124 CHECK_PARSE_BOOL(SpacesInParentheses); 9125 CHECK_PARSE_BOOL(SpacesInSquareBrackets); 9126 CHECK_PARSE_BOOL(SpacesInAngles); 9127 CHECK_PARSE_BOOL(SpaceInEmptyParentheses); 9128 CHECK_PARSE_BOOL(SpacesInContainerLiterals); 9129 CHECK_PARSE_BOOL(SpacesInCStyleCastParentheses); 9130 CHECK_PARSE_BOOL(SpaceAfterCStyleCast); 9131 CHECK_PARSE_BOOL(SpaceBeforeAssignmentOperators); 9132 } 9133 9134 #undef CHECK_PARSE_BOOL 9135 9136 TEST_F(FormatTest, ParsesConfiguration) { 9137 FormatStyle Style = {}; 9138 Style.Language = FormatStyle::LK_Cpp; 9139 CHECK_PARSE("AccessModifierOffset: -1234", AccessModifierOffset, -1234); 9140 CHECK_PARSE("ConstructorInitializerIndentWidth: 1234", 9141 ConstructorInitializerIndentWidth, 1234u); 9142 CHECK_PARSE("ObjCBlockIndentWidth: 1234", ObjCBlockIndentWidth, 1234u); 9143 CHECK_PARSE("ColumnLimit: 1234", ColumnLimit, 1234u); 9144 CHECK_PARSE("MaxEmptyLinesToKeep: 1234", MaxEmptyLinesToKeep, 1234u); 9145 CHECK_PARSE("PenaltyBreakBeforeFirstCallParameter: 1234", 9146 PenaltyBreakBeforeFirstCallParameter, 1234u); 9147 CHECK_PARSE("PenaltyExcessCharacter: 1234", PenaltyExcessCharacter, 1234u); 9148 CHECK_PARSE("PenaltyReturnTypeOnItsOwnLine: 1234", 9149 PenaltyReturnTypeOnItsOwnLine, 1234u); 9150 CHECK_PARSE("SpacesBeforeTrailingComments: 1234", 9151 SpacesBeforeTrailingComments, 1234u); 9152 CHECK_PARSE("IndentWidth: 32", IndentWidth, 32u); 9153 CHECK_PARSE("ContinuationIndentWidth: 11", ContinuationIndentWidth, 11u); 9154 9155 Style.PointerAlignment = FormatStyle::PAS_Middle; 9156 CHECK_PARSE("PointerAlignment: Left", PointerAlignment, 9157 FormatStyle::PAS_Left); 9158 CHECK_PARSE("PointerAlignment: Right", PointerAlignment, 9159 FormatStyle::PAS_Right); 9160 CHECK_PARSE("PointerAlignment: Middle", PointerAlignment, 9161 FormatStyle::PAS_Middle); 9162 // For backward compatibility: 9163 CHECK_PARSE("PointerBindsToType: Left", PointerAlignment, 9164 FormatStyle::PAS_Left); 9165 CHECK_PARSE("PointerBindsToType: Right", PointerAlignment, 9166 FormatStyle::PAS_Right); 9167 CHECK_PARSE("PointerBindsToType: Middle", PointerAlignment, 9168 FormatStyle::PAS_Middle); 9169 9170 Style.Standard = FormatStyle::LS_Auto; 9171 CHECK_PARSE("Standard: Cpp03", Standard, FormatStyle::LS_Cpp03); 9172 CHECK_PARSE("Standard: Cpp11", Standard, FormatStyle::LS_Cpp11); 9173 CHECK_PARSE("Standard: C++03", Standard, FormatStyle::LS_Cpp03); 9174 CHECK_PARSE("Standard: C++11", Standard, FormatStyle::LS_Cpp11); 9175 CHECK_PARSE("Standard: Auto", Standard, FormatStyle::LS_Auto); 9176 9177 Style.BreakBeforeBinaryOperators = FormatStyle::BOS_All; 9178 CHECK_PARSE("BreakBeforeBinaryOperators: NonAssignment", 9179 BreakBeforeBinaryOperators, FormatStyle::BOS_NonAssignment); 9180 CHECK_PARSE("BreakBeforeBinaryOperators: None", BreakBeforeBinaryOperators, 9181 FormatStyle::BOS_None); 9182 CHECK_PARSE("BreakBeforeBinaryOperators: All", BreakBeforeBinaryOperators, 9183 FormatStyle::BOS_All); 9184 // For backward compatibility: 9185 CHECK_PARSE("BreakBeforeBinaryOperators: false", BreakBeforeBinaryOperators, 9186 FormatStyle::BOS_None); 9187 CHECK_PARSE("BreakBeforeBinaryOperators: true", BreakBeforeBinaryOperators, 9188 FormatStyle::BOS_All); 9189 9190 Style.UseTab = FormatStyle::UT_ForIndentation; 9191 CHECK_PARSE("UseTab: Never", UseTab, FormatStyle::UT_Never); 9192 CHECK_PARSE("UseTab: ForIndentation", UseTab, FormatStyle::UT_ForIndentation); 9193 CHECK_PARSE("UseTab: Always", UseTab, FormatStyle::UT_Always); 9194 // For backward compatibility: 9195 CHECK_PARSE("UseTab: false", UseTab, FormatStyle::UT_Never); 9196 CHECK_PARSE("UseTab: true", UseTab, FormatStyle::UT_Always); 9197 9198 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Inline; 9199 CHECK_PARSE("AllowShortFunctionsOnASingleLine: None", 9200 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_None); 9201 CHECK_PARSE("AllowShortFunctionsOnASingleLine: Inline", 9202 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_Inline); 9203 CHECK_PARSE("AllowShortFunctionsOnASingleLine: Empty", 9204 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_Empty); 9205 CHECK_PARSE("AllowShortFunctionsOnASingleLine: All", 9206 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_All); 9207 // For backward compatibility: 9208 CHECK_PARSE("AllowShortFunctionsOnASingleLine: false", 9209 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_None); 9210 CHECK_PARSE("AllowShortFunctionsOnASingleLine: true", 9211 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_All); 9212 9213 Style.SpaceBeforeParens = FormatStyle::SBPO_Always; 9214 CHECK_PARSE("SpaceBeforeParens: Never", SpaceBeforeParens, 9215 FormatStyle::SBPO_Never); 9216 CHECK_PARSE("SpaceBeforeParens: Always", SpaceBeforeParens, 9217 FormatStyle::SBPO_Always); 9218 CHECK_PARSE("SpaceBeforeParens: ControlStatements", SpaceBeforeParens, 9219 FormatStyle::SBPO_ControlStatements); 9220 // For backward compatibility: 9221 CHECK_PARSE("SpaceAfterControlStatementKeyword: false", SpaceBeforeParens, 9222 FormatStyle::SBPO_Never); 9223 CHECK_PARSE("SpaceAfterControlStatementKeyword: true", SpaceBeforeParens, 9224 FormatStyle::SBPO_ControlStatements); 9225 9226 Style.ColumnLimit = 123; 9227 FormatStyle BaseStyle = getLLVMStyle(); 9228 CHECK_PARSE("BasedOnStyle: LLVM", ColumnLimit, BaseStyle.ColumnLimit); 9229 CHECK_PARSE("BasedOnStyle: LLVM\nColumnLimit: 1234", ColumnLimit, 1234u); 9230 9231 Style.BreakBeforeBraces = FormatStyle::BS_Stroustrup; 9232 CHECK_PARSE("BreakBeforeBraces: Attach", BreakBeforeBraces, 9233 FormatStyle::BS_Attach); 9234 CHECK_PARSE("BreakBeforeBraces: Linux", BreakBeforeBraces, 9235 FormatStyle::BS_Linux); 9236 CHECK_PARSE("BreakBeforeBraces: Stroustrup", BreakBeforeBraces, 9237 FormatStyle::BS_Stroustrup); 9238 CHECK_PARSE("BreakBeforeBraces: Allman", BreakBeforeBraces, 9239 FormatStyle::BS_Allman); 9240 CHECK_PARSE("BreakBeforeBraces: GNU", BreakBeforeBraces, FormatStyle::BS_GNU); 9241 9242 Style.NamespaceIndentation = FormatStyle::NI_All; 9243 CHECK_PARSE("NamespaceIndentation: None", NamespaceIndentation, 9244 FormatStyle::NI_None); 9245 CHECK_PARSE("NamespaceIndentation: Inner", NamespaceIndentation, 9246 FormatStyle::NI_Inner); 9247 CHECK_PARSE("NamespaceIndentation: All", NamespaceIndentation, 9248 FormatStyle::NI_All); 9249 9250 Style.ForEachMacros.clear(); 9251 std::vector<std::string> BoostForeach; 9252 BoostForeach.push_back("BOOST_FOREACH"); 9253 CHECK_PARSE("ForEachMacros: [BOOST_FOREACH]", ForEachMacros, BoostForeach); 9254 std::vector<std::string> BoostAndQForeach; 9255 BoostAndQForeach.push_back("BOOST_FOREACH"); 9256 BoostAndQForeach.push_back("Q_FOREACH"); 9257 CHECK_PARSE("ForEachMacros: [BOOST_FOREACH, Q_FOREACH]", ForEachMacros, 9258 BoostAndQForeach); 9259 } 9260 9261 TEST_F(FormatTest, ParsesConfigurationWithLanguages) { 9262 FormatStyle Style = {}; 9263 Style.Language = FormatStyle::LK_Cpp; 9264 CHECK_PARSE("Language: Cpp\n" 9265 "IndentWidth: 12", 9266 IndentWidth, 12u); 9267 EXPECT_EQ(parseConfiguration("Language: JavaScript\n" 9268 "IndentWidth: 34", 9269 &Style), 9270 ParseError::Unsuitable); 9271 EXPECT_EQ(12u, Style.IndentWidth); 9272 CHECK_PARSE("IndentWidth: 56", IndentWidth, 56u); 9273 EXPECT_EQ(FormatStyle::LK_Cpp, Style.Language); 9274 9275 Style.Language = FormatStyle::LK_JavaScript; 9276 CHECK_PARSE("Language: JavaScript\n" 9277 "IndentWidth: 12", 9278 IndentWidth, 12u); 9279 CHECK_PARSE("IndentWidth: 23", IndentWidth, 23u); 9280 EXPECT_EQ(parseConfiguration("Language: Cpp\n" 9281 "IndentWidth: 34", 9282 &Style), 9283 ParseError::Unsuitable); 9284 EXPECT_EQ(23u, Style.IndentWidth); 9285 CHECK_PARSE("IndentWidth: 56", IndentWidth, 56u); 9286 EXPECT_EQ(FormatStyle::LK_JavaScript, Style.Language); 9287 9288 CHECK_PARSE("BasedOnStyle: LLVM\n" 9289 "IndentWidth: 67", 9290 IndentWidth, 67u); 9291 9292 CHECK_PARSE("---\n" 9293 "Language: JavaScript\n" 9294 "IndentWidth: 12\n" 9295 "---\n" 9296 "Language: Cpp\n" 9297 "IndentWidth: 34\n" 9298 "...\n", 9299 IndentWidth, 12u); 9300 9301 Style.Language = FormatStyle::LK_Cpp; 9302 CHECK_PARSE("---\n" 9303 "Language: JavaScript\n" 9304 "IndentWidth: 12\n" 9305 "---\n" 9306 "Language: Cpp\n" 9307 "IndentWidth: 34\n" 9308 "...\n", 9309 IndentWidth, 34u); 9310 CHECK_PARSE("---\n" 9311 "IndentWidth: 78\n" 9312 "---\n" 9313 "Language: JavaScript\n" 9314 "IndentWidth: 56\n" 9315 "...\n", 9316 IndentWidth, 78u); 9317 9318 Style.ColumnLimit = 123; 9319 Style.IndentWidth = 234; 9320 Style.BreakBeforeBraces = FormatStyle::BS_Linux; 9321 Style.TabWidth = 345; 9322 EXPECT_FALSE(parseConfiguration("---\n" 9323 "IndentWidth: 456\n" 9324 "BreakBeforeBraces: Allman\n" 9325 "---\n" 9326 "Language: JavaScript\n" 9327 "IndentWidth: 111\n" 9328 "TabWidth: 111\n" 9329 "---\n" 9330 "Language: Cpp\n" 9331 "BreakBeforeBraces: Stroustrup\n" 9332 "TabWidth: 789\n" 9333 "...\n", 9334 &Style)); 9335 EXPECT_EQ(123u, Style.ColumnLimit); 9336 EXPECT_EQ(456u, Style.IndentWidth); 9337 EXPECT_EQ(FormatStyle::BS_Stroustrup, Style.BreakBeforeBraces); 9338 EXPECT_EQ(789u, Style.TabWidth); 9339 9340 EXPECT_EQ(parseConfiguration("---\n" 9341 "Language: JavaScript\n" 9342 "IndentWidth: 56\n" 9343 "---\n" 9344 "IndentWidth: 78\n" 9345 "...\n", 9346 &Style), 9347 ParseError::Error); 9348 EXPECT_EQ(parseConfiguration("---\n" 9349 "Language: JavaScript\n" 9350 "IndentWidth: 56\n" 9351 "---\n" 9352 "Language: JavaScript\n" 9353 "IndentWidth: 78\n" 9354 "...\n", 9355 &Style), 9356 ParseError::Error); 9357 9358 EXPECT_EQ(FormatStyle::LK_Cpp, Style.Language); 9359 } 9360 9361 #undef CHECK_PARSE 9362 9363 TEST_F(FormatTest, UsesLanguageForBasedOnStyle) { 9364 FormatStyle Style = {}; 9365 Style.Language = FormatStyle::LK_JavaScript; 9366 Style.BreakBeforeTernaryOperators = true; 9367 EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google", &Style).value()); 9368 EXPECT_FALSE(Style.BreakBeforeTernaryOperators); 9369 9370 Style.BreakBeforeTernaryOperators = true; 9371 EXPECT_EQ(0, parseConfiguration("---\n" 9372 "BasedOnStyle: Google\n" 9373 "---\n" 9374 "Language: JavaScript\n" 9375 "IndentWidth: 76\n" 9376 "...\n", 9377 &Style).value()); 9378 EXPECT_FALSE(Style.BreakBeforeTernaryOperators); 9379 EXPECT_EQ(76u, Style.IndentWidth); 9380 EXPECT_EQ(FormatStyle::LK_JavaScript, Style.Language); 9381 } 9382 9383 TEST_F(FormatTest, ConfigurationRoundTripTest) { 9384 FormatStyle Style = getLLVMStyle(); 9385 std::string YAML = configurationAsText(Style); 9386 FormatStyle ParsedStyle = {}; 9387 ParsedStyle.Language = FormatStyle::LK_Cpp; 9388 EXPECT_EQ(0, parseConfiguration(YAML, &ParsedStyle).value()); 9389 EXPECT_EQ(Style, ParsedStyle); 9390 } 9391 9392 TEST_F(FormatTest, WorksFor8bitEncodings) { 9393 EXPECT_EQ("\"\xce\xe4\xed\xe0\xe6\xe4\xfb \xe2 \"\n" 9394 "\"\xf1\xf2\xf3\xe4\xb8\xed\xf3\xfe \"\n" 9395 "\"\xe7\xe8\xec\xed\xfe\xfe \"\n" 9396 "\"\xef\xee\xf0\xf3...\"", 9397 format("\"\xce\xe4\xed\xe0\xe6\xe4\xfb \xe2 " 9398 "\xf1\xf2\xf3\xe4\xb8\xed\xf3\xfe \xe7\xe8\xec\xed\xfe\xfe " 9399 "\xef\xee\xf0\xf3...\"", 9400 getLLVMStyleWithColumns(12))); 9401 } 9402 9403 TEST_F(FormatTest, HandlesUTF8BOM) { 9404 EXPECT_EQ("\xef\xbb\xbf", format("\xef\xbb\xbf")); 9405 EXPECT_EQ("\xef\xbb\xbf#include <iostream>", 9406 format("\xef\xbb\xbf#include <iostream>")); 9407 EXPECT_EQ("\xef\xbb\xbf\n#include <iostream>", 9408 format("\xef\xbb\xbf\n#include <iostream>")); 9409 } 9410 9411 // FIXME: Encode Cyrillic and CJK characters below to appease MS compilers. 9412 #if !defined(_MSC_VER) 9413 9414 TEST_F(FormatTest, CountsUTF8CharactersProperly) { 9415 verifyFormat("\"Однажды в студёную зимнюю пору...\"", 9416 getLLVMStyleWithColumns(35)); 9417 verifyFormat("\"一 二 三 四 五 六 七 八 九 十\"", 9418 getLLVMStyleWithColumns(31)); 9419 verifyFormat("// Однажды в студёную зимнюю пору...", 9420 getLLVMStyleWithColumns(36)); 9421 verifyFormat("// 一 二 三 四 五 六 七 八 九 十", getLLVMStyleWithColumns(32)); 9422 verifyFormat("/* Однажды в студёную зимнюю пору... */", 9423 getLLVMStyleWithColumns(39)); 9424 verifyFormat("/* 一 二 三 四 五 六 七 八 九 十 */", 9425 getLLVMStyleWithColumns(35)); 9426 } 9427 9428 TEST_F(FormatTest, SplitsUTF8Strings) { 9429 // Non-printable characters' width is currently considered to be the length in 9430 // bytes in UTF8. The characters can be displayed in very different manner 9431 // (zero-width, single width with a substitution glyph, expanded to their code 9432 // (e.g. "<8d>"), so there's no single correct way to handle them. 9433 EXPECT_EQ("\"aaaaÄ\"\n" 9434 "\"\xc2\x8d\";", 9435 format("\"aaaaÄ\xc2\x8d\";", getLLVMStyleWithColumns(10))); 9436 EXPECT_EQ("\"aaaaaaaÄ\"\n" 9437 "\"\xc2\x8d\";", 9438 format("\"aaaaaaaÄ\xc2\x8d\";", getLLVMStyleWithColumns(10))); 9439 EXPECT_EQ("\"Однажды, в \"\n" 9440 "\"студёную \"\n" 9441 "\"зимнюю \"\n" 9442 "\"пору,\"", 9443 format("\"Однажды, в студёную зимнюю пору,\"", 9444 getLLVMStyleWithColumns(13))); 9445 EXPECT_EQ( 9446 "\"一 二 三 \"\n" 9447 "\"四 五六 \"\n" 9448 "\"七 八 九 \"\n" 9449 "\"十\"", 9450 format("\"一 二 三 四 五六 七 八 九 十\"", getLLVMStyleWithColumns(11))); 9451 EXPECT_EQ("\"一\t二 \"\n" 9452 "\"\t三 \"\n" 9453 "\"四 五\t六 \"\n" 9454 "\"\t七 \"\n" 9455 "\"八九十\tqq\"", 9456 format("\"一\t二 \t三 四 五\t六 \t七 八九十\tqq\"", 9457 getLLVMStyleWithColumns(11))); 9458 } 9459 9460 TEST_F(FormatTest, HandlesDoubleWidthCharsInMultiLineStrings) { 9461 EXPECT_EQ("const char *sssss =\n" 9462 " \"一二三四五六七八\\\n" 9463 " 九 十\";", 9464 format("const char *sssss = \"一二三四五六七八\\\n" 9465 " 九 十\";", 9466 getLLVMStyleWithColumns(30))); 9467 } 9468 9469 TEST_F(FormatTest, SplitsUTF8LineComments) { 9470 EXPECT_EQ("// aaaaÄ\xc2\x8d", 9471 format("// aaaaÄ\xc2\x8d", getLLVMStyleWithColumns(10))); 9472 EXPECT_EQ("// Я из лесу\n" 9473 "// вышел; был\n" 9474 "// сильный\n" 9475 "// мороз.", 9476 format("// Я из лесу вышел; был сильный мороз.", 9477 getLLVMStyleWithColumns(13))); 9478 EXPECT_EQ("// 一二三\n" 9479 "// 四五六七\n" 9480 "// 八 九\n" 9481 "// 十", 9482 format("// 一二三 四五六七 八 九 十", getLLVMStyleWithColumns(9))); 9483 } 9484 9485 TEST_F(FormatTest, SplitsUTF8BlockComments) { 9486 EXPECT_EQ("/* Гляжу,\n" 9487 " * поднимается\n" 9488 " * медленно в\n" 9489 " * гору\n" 9490 " * Лошадка,\n" 9491 " * везущая\n" 9492 " * хворосту\n" 9493 " * воз. */", 9494 format("/* Гляжу, поднимается медленно в гору\n" 9495 " * Лошадка, везущая хворосту воз. */", 9496 getLLVMStyleWithColumns(13))); 9497 EXPECT_EQ( 9498 "/* 一二三\n" 9499 " * 四五六七\n" 9500 " * 八 九\n" 9501 " * 十 */", 9502 format("/* 一二三 四五六七 八 九 十 */", getLLVMStyleWithColumns(9))); 9503 EXPECT_EQ("/* �������� ��������\n" 9504 " * ��������\n" 9505 " * ������-�� */", 9506 format("/* �������� �������� �������� ������-�� */", getLLVMStyleWithColumns(12))); 9507 } 9508 9509 #endif // _MSC_VER 9510 9511 TEST_F(FormatTest, ConstructorInitializerIndentWidth) { 9512 FormatStyle Style = getLLVMStyle(); 9513 9514 Style.ConstructorInitializerIndentWidth = 4; 9515 verifyFormat( 9516 "SomeClass::Constructor()\n" 9517 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 9518 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}", 9519 Style); 9520 9521 Style.ConstructorInitializerIndentWidth = 2; 9522 verifyFormat( 9523 "SomeClass::Constructor()\n" 9524 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 9525 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}", 9526 Style); 9527 9528 Style.ConstructorInitializerIndentWidth = 0; 9529 verifyFormat( 9530 "SomeClass::Constructor()\n" 9531 ": aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 9532 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}", 9533 Style); 9534 } 9535 9536 TEST_F(FormatTest, BreakConstructorInitializersBeforeComma) { 9537 FormatStyle Style = getLLVMStyle(); 9538 Style.BreakConstructorInitializersBeforeComma = true; 9539 Style.ConstructorInitializerIndentWidth = 4; 9540 verifyFormat("SomeClass::Constructor()\n" 9541 " : a(a)\n" 9542 " , b(b)\n" 9543 " , c(c) {}", 9544 Style); 9545 verifyFormat("SomeClass::Constructor()\n" 9546 " : a(a) {}", 9547 Style); 9548 9549 Style.ColumnLimit = 0; 9550 verifyFormat("SomeClass::Constructor()\n" 9551 " : a(a) {}", 9552 Style); 9553 verifyFormat("SomeClass::Constructor()\n" 9554 " : a(a)\n" 9555 " , b(b)\n" 9556 " , c(c) {}", 9557 Style); 9558 verifyFormat("SomeClass::Constructor()\n" 9559 " : a(a) {\n" 9560 " foo();\n" 9561 " bar();\n" 9562 "}", 9563 Style); 9564 9565 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_None; 9566 verifyFormat("SomeClass::Constructor()\n" 9567 " : a(a)\n" 9568 " , b(b)\n" 9569 " , c(c) {\n}", 9570 Style); 9571 verifyFormat("SomeClass::Constructor()\n" 9572 " : a(a) {\n}", 9573 Style); 9574 9575 Style.ColumnLimit = 80; 9576 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_All; 9577 Style.ConstructorInitializerIndentWidth = 2; 9578 verifyFormat("SomeClass::Constructor()\n" 9579 " : a(a)\n" 9580 " , b(b)\n" 9581 " , c(c) {}", 9582 Style); 9583 9584 Style.ConstructorInitializerIndentWidth = 0; 9585 verifyFormat("SomeClass::Constructor()\n" 9586 ": a(a)\n" 9587 ", b(b)\n" 9588 ", c(c) {}", 9589 Style); 9590 9591 Style.ConstructorInitializerAllOnOneLineOrOnePerLine = true; 9592 Style.ConstructorInitializerIndentWidth = 4; 9593 verifyFormat("SomeClass::Constructor() : aaaaaaaa(aaaaaaaa) {}", Style); 9594 verifyFormat( 9595 "SomeClass::Constructor() : aaaaa(aaaaa), aaaaa(aaaaa), aaaaa(aaaaa)\n", 9596 Style); 9597 verifyFormat( 9598 "SomeClass::Constructor()\n" 9599 " : aaaaaaaa(aaaaaaaa), aaaaaaaa(aaaaaaaa), aaaaaaaa(aaaaaaaa) {}", 9600 Style); 9601 Style.ConstructorInitializerIndentWidth = 4; 9602 Style.ColumnLimit = 60; 9603 verifyFormat("SomeClass::Constructor()\n" 9604 " : aaaaaaaa(aaaaaaaa)\n" 9605 " , aaaaaaaa(aaaaaaaa)\n" 9606 " , aaaaaaaa(aaaaaaaa) {}", 9607 Style); 9608 } 9609 9610 TEST_F(FormatTest, Destructors) { 9611 verifyFormat("void F(int &i) { i.~int(); }"); 9612 verifyFormat("void F(int &i) { i->~int(); }"); 9613 } 9614 9615 TEST_F(FormatTest, FormatsWithWebKitStyle) { 9616 FormatStyle Style = getWebKitStyle(); 9617 9618 // Don't indent in outer namespaces. 9619 verifyFormat("namespace outer {\n" 9620 "int i;\n" 9621 "namespace inner {\n" 9622 " int i;\n" 9623 "} // namespace inner\n" 9624 "} // namespace outer\n" 9625 "namespace other_outer {\n" 9626 "int i;\n" 9627 "}", 9628 Style); 9629 9630 // Don't indent case labels. 9631 verifyFormat("switch (variable) {\n" 9632 "case 1:\n" 9633 "case 2:\n" 9634 " doSomething();\n" 9635 " break;\n" 9636 "default:\n" 9637 " ++variable;\n" 9638 "}", 9639 Style); 9640 9641 // Wrap before binary operators. 9642 EXPECT_EQ("void f()\n" 9643 "{\n" 9644 " if (aaaaaaaaaaaaaaaa\n" 9645 " && bbbbbbbbbbbbbbbbbbbbbbbb\n" 9646 " && (cccccccccccccccccccccccccc || dddddddddddddddddddd))\n" 9647 " return;\n" 9648 "}", 9649 format("void f() {\n" 9650 "if (aaaaaaaaaaaaaaaa\n" 9651 "&& bbbbbbbbbbbbbbbbbbbbbbbb\n" 9652 "&& (cccccccccccccccccccccccccc || dddddddddddddddddddd))\n" 9653 "return;\n" 9654 "}", 9655 Style)); 9656 9657 // Allow functions on a single line. 9658 verifyFormat("void f() { return; }", Style); 9659 9660 // Constructor initializers are formatted one per line with the "," on the 9661 // new line. 9662 verifyFormat("Constructor()\n" 9663 " : aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 9664 " , aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaa, // break\n" 9665 " aaaaaaaaaaaaaa)\n" 9666 " , aaaaaaaaaaaaaaaaaaaaaaa()\n" 9667 "{\n" 9668 "}", 9669 Style); 9670 verifyFormat("SomeClass::Constructor()\n" 9671 " : a(a)\n" 9672 "{\n" 9673 "}", 9674 Style); 9675 EXPECT_EQ("SomeClass::Constructor()\n" 9676 " : a(a)\n" 9677 "{\n" 9678 "}", 9679 format("SomeClass::Constructor():a(a){}", Style)); 9680 verifyFormat("SomeClass::Constructor()\n" 9681 " : a(a)\n" 9682 " , b(b)\n" 9683 " , c(c)\n" 9684 "{\n" 9685 "}", 9686 Style); 9687 verifyFormat("SomeClass::Constructor()\n" 9688 " : a(a)\n" 9689 "{\n" 9690 " foo();\n" 9691 " bar();\n" 9692 "}", 9693 Style); 9694 9695 // Access specifiers should be aligned left. 9696 verifyFormat("class C {\n" 9697 "public:\n" 9698 " int i;\n" 9699 "};", 9700 Style); 9701 9702 // Do not align comments. 9703 verifyFormat("int a; // Do not\n" 9704 "double b; // align comments.", 9705 Style); 9706 9707 // Do not align operands. 9708 EXPECT_EQ("ASSERT(aaaa\n" 9709 " || bbbb);", 9710 format("ASSERT ( aaaa\n||bbbb);", Style)); 9711 9712 // Accept input's line breaks. 9713 EXPECT_EQ("if (aaaaaaaaaaaaaaa\n" 9714 " || bbbbbbbbbbbbbbb) {\n" 9715 " i++;\n" 9716 "}", 9717 format("if (aaaaaaaaaaaaaaa\n" 9718 "|| bbbbbbbbbbbbbbb) { i++; }", 9719 Style)); 9720 EXPECT_EQ("if (aaaaaaaaaaaaaaa || bbbbbbbbbbbbbbb) {\n" 9721 " i++;\n" 9722 "}", 9723 format("if (aaaaaaaaaaaaaaa || bbbbbbbbbbbbbbb) { i++; }", Style)); 9724 9725 // Don't automatically break all macro definitions (llvm.org/PR17842). 9726 verifyFormat("#define aNumber 10", Style); 9727 // However, generally keep the line breaks that the user authored. 9728 EXPECT_EQ("#define aNumber \\\n" 9729 " 10", 9730 format("#define aNumber \\\n" 9731 " 10", 9732 Style)); 9733 9734 // Keep empty and one-element array literals on a single line. 9735 EXPECT_EQ("NSArray* a = [[NSArray alloc] initWithArray:@[]\n" 9736 " copyItems:YES];", 9737 format("NSArray*a=[[NSArray alloc] initWithArray:@[]\n" 9738 "copyItems:YES];", 9739 Style)); 9740 EXPECT_EQ("NSArray* a = [[NSArray alloc] initWithArray:@[ @\"a\" ]\n" 9741 " copyItems:YES];", 9742 format("NSArray*a=[[NSArray alloc]initWithArray:@[ @\"a\" ]\n" 9743 " copyItems:YES];", 9744 Style)); 9745 // FIXME: This does not seem right, there should be more indentation before 9746 // the array literal's entries. Nested blocks have the same problem. 9747 EXPECT_EQ("NSArray* a = [[NSArray alloc] initWithArray:@[\n" 9748 " @\"a\",\n" 9749 " @\"a\"\n" 9750 "]\n" 9751 " copyItems:YES];", 9752 format("NSArray* a = [[NSArray alloc] initWithArray:@[\n" 9753 " @\"a\",\n" 9754 " @\"a\"\n" 9755 " ]\n" 9756 " copyItems:YES];", 9757 Style)); 9758 EXPECT_EQ( 9759 "NSArray* a = [[NSArray alloc] initWithArray:@[ @\"a\", @\"a\" ]\n" 9760 " copyItems:YES];", 9761 format("NSArray* a = [[NSArray alloc] initWithArray:@[ @\"a\", @\"a\" ]\n" 9762 " copyItems:YES];", 9763 Style)); 9764 9765 verifyFormat("[self.a b:c c:d];", Style); 9766 EXPECT_EQ("[self.a b:c\n" 9767 " c:d];", 9768 format("[self.a b:c\n" 9769 "c:d];", 9770 Style)); 9771 } 9772 9773 TEST_F(FormatTest, FormatsLambdas) { 9774 verifyFormat("int c = [b]() mutable { return [&b] { return b++; }(); }();\n"); 9775 verifyFormat("int c = [&] { [=] { return b++; }(); }();\n"); 9776 verifyFormat("int c = [&, &a, a] { [=, c, &d] { return b++; }(); }();\n"); 9777 verifyFormat("int c = [&a, &a, a] { [=, a, b, &c] { return b++; }(); }();\n"); 9778 verifyFormat("auto c = {[&a, &a, a] { [=, a, b, &c] { return b++; }(); }}\n"); 9779 verifyFormat("auto c = {[&a, &a, a] { [=, a, b, &c] {}(); }}\n"); 9780 verifyFormat("void f() {\n" 9781 " other(x.begin(), x.end(), [&](int, int) { return 1; });\n" 9782 "}\n"); 9783 verifyFormat("void f() {\n" 9784 " other(x.begin(), //\n" 9785 " x.end(), //\n" 9786 " [&](int, int) { return 1; });\n" 9787 "}\n"); 9788 verifyFormat("SomeFunction([]() { // A cool function...\n" 9789 " return 43;\n" 9790 "});"); 9791 EXPECT_EQ("SomeFunction([]() {\n" 9792 "#define A a\n" 9793 " return 43;\n" 9794 "});", 9795 format("SomeFunction([](){\n" 9796 "#define A a\n" 9797 "return 43;\n" 9798 "});")); 9799 verifyFormat("void f() {\n" 9800 " SomeFunction([](decltype(x), A *a) {});\n" 9801 "}"); 9802 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 9803 " [](const aaaaaaaaaa &a) { return a; });"); 9804 verifyFormat("string abc = SomeFunction(aaaaaaaaaaaaa, aaaaa, []() {\n" 9805 " SomeOtherFunctioooooooooooooooooooooooooon();\n" 9806 "});"); 9807 verifyFormat("Constructor()\n" 9808 " : Field([] { // comment\n" 9809 " int i;\n" 9810 " }) {}"); 9811 9812 // Lambdas with return types. 9813 verifyFormat("int c = []() -> int { return 2; }();\n"); 9814 verifyFormat("int c = []() -> vector<int> { return {2}; }();\n"); 9815 verifyFormat("Foo([]() -> std::vector<int> { return {2}; }());"); 9816 verifyGoogleFormat("auto a = [&b, c](D* d) -> D* {};"); 9817 verifyGoogleFormat("auto a = [&b, c](D* d) -> pair<D*, D*> {};"); 9818 verifyGoogleFormat("auto a = [&b, c](D* d) -> D& {};"); 9819 verifyGoogleFormat("auto a = [&b, c](D* d) -> const D* {};"); 9820 verifyFormat("auto aaaaaaaa = [](int i, // break for some reason\n" 9821 " int j) -> int {\n" 9822 " return ffffffffffffffffffffffffffffffffffffffffffff(i * j);\n" 9823 "};"); 9824 verifyFormat( 9825 "aaaaaaaaaaaaaaaaaaaaaa(\n" 9826 " [](aaaaaaaaaaaaaaaaaaaaaaaaaaa &aaa) -> aaaaaaaaaaaaaaaa {\n" 9827 " return aaaaaaaaaaaaaaaaa;\n" 9828 " });", 9829 getLLVMStyleWithColumns(70)); 9830 9831 // Multiple lambdas in the same parentheses change indentation rules. 9832 verifyFormat("SomeFunction(\n" 9833 " []() {\n" 9834 " int i = 42;\n" 9835 " return i;\n" 9836 " },\n" 9837 " []() {\n" 9838 " int j = 43;\n" 9839 " return j;\n" 9840 " });"); 9841 9842 // More complex introducers. 9843 verifyFormat("return [i, args...] {};"); 9844 9845 // Not lambdas. 9846 verifyFormat("constexpr char hello[]{\"hello\"};"); 9847 verifyFormat("double &operator[](int i) { return 0; }\n" 9848 "int i;"); 9849 verifyFormat("std::unique_ptr<int[]> foo() {}"); 9850 verifyFormat("int i = a[a][a]->f();"); 9851 verifyFormat("int i = (*b)[a]->f();"); 9852 9853 // Other corner cases. 9854 verifyFormat("void f() {\n" 9855 " bar([]() {} // Did not respect SpacesBeforeTrailingComments\n" 9856 " );\n" 9857 "}"); 9858 9859 // Lambdas created through weird macros. 9860 verifyFormat("void f() {\n" 9861 " MACRO((const AA &a) { return 1; });\n" 9862 "}"); 9863 9864 verifyFormat("if (blah_blah(whatever, whatever, [] {\n" 9865 " doo_dah();\n" 9866 " doo_dah();\n" 9867 " })) {\n" 9868 "}"); 9869 verifyFormat("auto lambda = []() {\n" 9870 " int a = 2\n" 9871 "#if A\n" 9872 " + 2\n" 9873 "#endif\n" 9874 " ;\n" 9875 "};"); 9876 } 9877 9878 TEST_F(FormatTest, FormatsBlocks) { 9879 FormatStyle ShortBlocks = getLLVMStyle(); 9880 ShortBlocks.AllowShortBlocksOnASingleLine = true; 9881 verifyFormat("int (^Block)(int, int);", ShortBlocks); 9882 verifyFormat("int (^Block1)(int, int) = ^(int i, int j)", ShortBlocks); 9883 verifyFormat("void (^block)(int) = ^(id test) { int i; };", ShortBlocks); 9884 verifyFormat("void (^block)(int) = ^(int test) { int i; };", ShortBlocks); 9885 verifyFormat("void (^block)(int) = ^id(int test) { int i; };", ShortBlocks); 9886 verifyFormat("void (^block)(int) = ^int(int test) { int i; };", ShortBlocks); 9887 9888 verifyFormat("foo(^{ bar(); });", ShortBlocks); 9889 verifyFormat("foo(a, ^{ bar(); });", ShortBlocks); 9890 verifyFormat("{ void (^block)(Object *x); }", ShortBlocks); 9891 9892 verifyFormat("[operation setCompletionBlock:^{\n" 9893 " [self onOperationDone];\n" 9894 "}];"); 9895 verifyFormat("int i = {[operation setCompletionBlock:^{\n" 9896 " [self onOperationDone];\n" 9897 "}]};"); 9898 verifyFormat("[operation setCompletionBlock:^(int *i) {\n" 9899 " f();\n" 9900 "}];"); 9901 verifyFormat("int a = [operation block:^int(int *i) {\n" 9902 " return 1;\n" 9903 "}];"); 9904 verifyFormat("[myObject doSomethingWith:arg1\n" 9905 " aaa:^int(int *a) {\n" 9906 " return 1;\n" 9907 " }\n" 9908 " bbb:f(a * bbbbbbbb)];"); 9909 9910 verifyFormat("[operation setCompletionBlock:^{\n" 9911 " [self.delegate newDataAvailable];\n" 9912 "}];", 9913 getLLVMStyleWithColumns(60)); 9914 verifyFormat("dispatch_async(_fileIOQueue, ^{\n" 9915 " NSString *path = [self sessionFilePath];\n" 9916 " if (path) {\n" 9917 " // ...\n" 9918 " }\n" 9919 "});"); 9920 verifyFormat("[[SessionService sharedService]\n" 9921 " loadWindowWithCompletionBlock:^(SessionWindow *window) {\n" 9922 " if (window) {\n" 9923 " [self windowDidLoad:window];\n" 9924 " } else {\n" 9925 " [self errorLoadingWindow];\n" 9926 " }\n" 9927 " }];"); 9928 verifyFormat("void (^largeBlock)(void) = ^{\n" 9929 " // ...\n" 9930 "};\n", 9931 getLLVMStyleWithColumns(40)); 9932 verifyFormat("[[SessionService sharedService]\n" 9933 " loadWindowWithCompletionBlock: //\n" 9934 " ^(SessionWindow *window) {\n" 9935 " if (window) {\n" 9936 " [self windowDidLoad:window];\n" 9937 " } else {\n" 9938 " [self errorLoadingWindow];\n" 9939 " }\n" 9940 " }];", 9941 getLLVMStyleWithColumns(60)); 9942 verifyFormat("[myObject doSomethingWith:arg1\n" 9943 " firstBlock:^(Foo *a) {\n" 9944 " // ...\n" 9945 " int i;\n" 9946 " }\n" 9947 " secondBlock:^(Bar *b) {\n" 9948 " // ...\n" 9949 " int i;\n" 9950 " }\n" 9951 " thirdBlock:^Foo(Bar *b) {\n" 9952 " // ...\n" 9953 " int i;\n" 9954 " }];"); 9955 verifyFormat("[myObject doSomethingWith:arg1\n" 9956 " firstBlock:-1\n" 9957 " secondBlock:^(Bar *b) {\n" 9958 " // ...\n" 9959 " int i;\n" 9960 " }];"); 9961 9962 verifyFormat("f(^{\n" 9963 " @autoreleasepool {\n" 9964 " if (a) {\n" 9965 " g();\n" 9966 " }\n" 9967 " }\n" 9968 "});"); 9969 verifyFormat("Block b = ^int *(A *a, B *b) {}"); 9970 9971 FormatStyle FourIndent = getLLVMStyle(); 9972 FourIndent.ObjCBlockIndentWidth = 4; 9973 verifyFormat("[operation setCompletionBlock:^{\n" 9974 " [self onOperationDone];\n" 9975 "}];", 9976 FourIndent); 9977 } 9978 9979 TEST_F(FormatTest, FormatsBlocksWithZeroColumnWidth) { 9980 FormatStyle ZeroColumn = getLLVMStyle(); 9981 ZeroColumn.ColumnLimit = 0; 9982 9983 verifyFormat("[[SessionService sharedService] " 9984 "loadWindowWithCompletionBlock:^(SessionWindow *window) {\n" 9985 " if (window) {\n" 9986 " [self windowDidLoad:window];\n" 9987 " } else {\n" 9988 " [self errorLoadingWindow];\n" 9989 " }\n" 9990 "}];", 9991 ZeroColumn); 9992 EXPECT_EQ("[[SessionService sharedService]\n" 9993 " loadWindowWithCompletionBlock:^(SessionWindow *window) {\n" 9994 " if (window) {\n" 9995 " [self windowDidLoad:window];\n" 9996 " } else {\n" 9997 " [self errorLoadingWindow];\n" 9998 " }\n" 9999 " }];", 10000 format("[[SessionService sharedService]\n" 10001 "loadWindowWithCompletionBlock:^(SessionWindow *window) {\n" 10002 " if (window) {\n" 10003 " [self windowDidLoad:window];\n" 10004 " } else {\n" 10005 " [self errorLoadingWindow];\n" 10006 " }\n" 10007 "}];", 10008 ZeroColumn)); 10009 verifyFormat("[myObject doSomethingWith:arg1\n" 10010 " firstBlock:^(Foo *a) {\n" 10011 " // ...\n" 10012 " int i;\n" 10013 " }\n" 10014 " secondBlock:^(Bar *b) {\n" 10015 " // ...\n" 10016 " int i;\n" 10017 " }\n" 10018 " thirdBlock:^Foo(Bar *b) {\n" 10019 " // ...\n" 10020 " int i;\n" 10021 " }];", 10022 ZeroColumn); 10023 verifyFormat("f(^{\n" 10024 " @autoreleasepool {\n" 10025 " if (a) {\n" 10026 " g();\n" 10027 " }\n" 10028 " }\n" 10029 "});", 10030 ZeroColumn); 10031 verifyFormat("void (^largeBlock)(void) = ^{\n" 10032 " // ...\n" 10033 "};", 10034 ZeroColumn); 10035 10036 ZeroColumn.AllowShortBlocksOnASingleLine = true; 10037 EXPECT_EQ("void (^largeBlock)(void) = ^{ int i; };", 10038 format("void (^largeBlock)(void) = ^{ int i; };", 10039 ZeroColumn)); 10040 ZeroColumn.AllowShortBlocksOnASingleLine = false; 10041 EXPECT_EQ("void (^largeBlock)(void) = ^{\n" 10042 " int i;\n" 10043 "};", 10044 format("void (^largeBlock)(void) = ^{ int i; };", ZeroColumn)); 10045 } 10046 10047 TEST_F(FormatTest, SupportsCRLF) { 10048 EXPECT_EQ("int a;\r\n" 10049 "int b;\r\n" 10050 "int c;\r\n", 10051 format("int a;\r\n" 10052 " int b;\r\n" 10053 " int c;\r\n", 10054 getLLVMStyle())); 10055 EXPECT_EQ("int a;\r\n" 10056 "int b;\r\n" 10057 "int c;\r\n", 10058 format("int a;\r\n" 10059 " int b;\n" 10060 " int c;\r\n", 10061 getLLVMStyle())); 10062 EXPECT_EQ("int a;\n" 10063 "int b;\n" 10064 "int c;\n", 10065 format("int a;\r\n" 10066 " int b;\n" 10067 " int c;\n", 10068 getLLVMStyle())); 10069 EXPECT_EQ("\"aaaaaaa \"\r\n" 10070 "\"bbbbbbb\";\r\n", 10071 format("\"aaaaaaa bbbbbbb\";\r\n", getLLVMStyleWithColumns(10))); 10072 EXPECT_EQ("#define A \\\r\n" 10073 " b; \\\r\n" 10074 " c; \\\r\n" 10075 " d;\r\n", 10076 format("#define A \\\r\n" 10077 " b; \\\r\n" 10078 " c; d; \r\n", 10079 getGoogleStyle())); 10080 10081 EXPECT_EQ("/*\r\n" 10082 "multi line block comments\r\n" 10083 "should not introduce\r\n" 10084 "an extra carriage return\r\n" 10085 "*/\r\n", 10086 format("/*\r\n" 10087 "multi line block comments\r\n" 10088 "should not introduce\r\n" 10089 "an extra carriage return\r\n" 10090 "*/\r\n")); 10091 } 10092 10093 TEST_F(FormatTest, MunchSemicolonAfterBlocks) { 10094 verifyFormat("MY_CLASS(C) {\n" 10095 " int i;\n" 10096 " int j;\n" 10097 "};"); 10098 } 10099 10100 TEST_F(FormatTest, ConfigurableContinuationIndentWidth) { 10101 FormatStyle TwoIndent = getLLVMStyleWithColumns(15); 10102 TwoIndent.ContinuationIndentWidth = 2; 10103 10104 EXPECT_EQ("int i =\n" 10105 " longFunction(\n" 10106 " arg);", 10107 format("int i = longFunction(arg);", TwoIndent)); 10108 10109 FormatStyle SixIndent = getLLVMStyleWithColumns(20); 10110 SixIndent.ContinuationIndentWidth = 6; 10111 10112 EXPECT_EQ("int i =\n" 10113 " longFunction(\n" 10114 " arg);", 10115 format("int i = longFunction(arg);", SixIndent)); 10116 } 10117 10118 TEST_F(FormatTest, SpacesInAngles) { 10119 FormatStyle Spaces = getLLVMStyle(); 10120 Spaces.SpacesInAngles = true; 10121 10122 verifyFormat("static_cast< int >(arg);", Spaces); 10123 verifyFormat("template < typename T0, typename T1 > void f() {}", Spaces); 10124 verifyFormat("f< int, float >();", Spaces); 10125 verifyFormat("template <> g() {}", Spaces); 10126 verifyFormat("template < std::vector< int > > f() {}", Spaces); 10127 10128 Spaces.Standard = FormatStyle::LS_Cpp03; 10129 Spaces.SpacesInAngles = true; 10130 verifyFormat("A< A< int > >();", Spaces); 10131 10132 Spaces.SpacesInAngles = false; 10133 verifyFormat("A<A<int> >();", Spaces); 10134 10135 Spaces.Standard = FormatStyle::LS_Cpp11; 10136 Spaces.SpacesInAngles = true; 10137 verifyFormat("A< A< int > >();", Spaces); 10138 10139 Spaces.SpacesInAngles = false; 10140 verifyFormat("A<A<int>>();", Spaces); 10141 } 10142 10143 TEST_F(FormatTest, TripleAngleBrackets) { 10144 verifyFormat("f<<<1, 1>>>();"); 10145 verifyFormat("f<<<1, 1, 1, s>>>();"); 10146 verifyFormat("f<<<a, b, c, d>>>();"); 10147 EXPECT_EQ("f<<<1, 1>>>();", format("f <<< 1, 1 >>> ();")); 10148 verifyFormat("f<param><<<1, 1>>>();"); 10149 verifyFormat("f<1><<<1, 1>>>();"); 10150 EXPECT_EQ("f<param><<<1, 1>>>();", format("f< param > <<< 1, 1 >>> ();")); 10151 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" 10152 "aaaaaaaaaaa<<<\n 1, 1>>>();"); 10153 } 10154 10155 TEST_F(FormatTest, MergeLessLessAtEnd) { 10156 verifyFormat("<<"); 10157 EXPECT_EQ("< < <", format("\\\n<<<")); 10158 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" 10159 "aaallvm::outs() <<"); 10160 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" 10161 "aaaallvm::outs()\n <<"); 10162 } 10163 10164 TEST_F(FormatTest, HandleUnbalancedImplicitBracesAcrossPPBranches) { 10165 std::string code = "#if A\n" 10166 "#if B\n" 10167 "a.\n" 10168 "#endif\n" 10169 " a = 1;\n" 10170 "#else\n" 10171 "#endif\n" 10172 "#if C\n" 10173 "#else\n" 10174 "#endif\n"; 10175 EXPECT_EQ(code, format(code)); 10176 } 10177 10178 TEST_F(FormatTest, HandleConflictMarkers) { 10179 // Git/SVN conflict markers. 10180 EXPECT_EQ("int a;\n" 10181 "void f() {\n" 10182 " callme(some(parameter1,\n" 10183 "<<<<<<< text by the vcs\n" 10184 " parameter2),\n" 10185 "||||||| text by the vcs\n" 10186 " parameter2),\n" 10187 " parameter3,\n" 10188 "======= text by the vcs\n" 10189 " parameter2, parameter3),\n" 10190 ">>>>>>> text by the vcs\n" 10191 " otherparameter);\n", 10192 format("int a;\n" 10193 "void f() {\n" 10194 " callme(some(parameter1,\n" 10195 "<<<<<<< text by the vcs\n" 10196 " parameter2),\n" 10197 "||||||| text by the vcs\n" 10198 " parameter2),\n" 10199 " parameter3,\n" 10200 "======= text by the vcs\n" 10201 " parameter2,\n" 10202 " parameter3),\n" 10203 ">>>>>>> text by the vcs\n" 10204 " otherparameter);\n")); 10205 10206 // Perforce markers. 10207 EXPECT_EQ("void f() {\n" 10208 " function(\n" 10209 ">>>> text by the vcs\n" 10210 " parameter,\n" 10211 "==== text by the vcs\n" 10212 " parameter,\n" 10213 "==== text by the vcs\n" 10214 " parameter,\n" 10215 "<<<< text by the vcs\n" 10216 " parameter);\n", 10217 format("void f() {\n" 10218 " function(\n" 10219 ">>>> text by the vcs\n" 10220 " parameter,\n" 10221 "==== text by the vcs\n" 10222 " parameter,\n" 10223 "==== text by the vcs\n" 10224 " parameter,\n" 10225 "<<<< text by the vcs\n" 10226 " parameter);\n")); 10227 10228 EXPECT_EQ("<<<<<<<\n" 10229 "|||||||\n" 10230 "=======\n" 10231 ">>>>>>>", 10232 format("<<<<<<<\n" 10233 "|||||||\n" 10234 "=======\n" 10235 ">>>>>>>")); 10236 10237 EXPECT_EQ("<<<<<<<\n" 10238 "|||||||\n" 10239 "int i;\n" 10240 "=======\n" 10241 ">>>>>>>", 10242 format("<<<<<<<\n" 10243 "|||||||\n" 10244 "int i;\n" 10245 "=======\n" 10246 ">>>>>>>")); 10247 10248 // FIXME: Handle parsing of macros around conflict markers correctly: 10249 EXPECT_EQ("#define Macro \\\n" 10250 "<<<<<<<\n" 10251 "Something \\\n" 10252 "|||||||\n" 10253 "Else \\\n" 10254 "=======\n" 10255 "Other \\\n" 10256 ">>>>>>>\n" 10257 " End int i;\n", 10258 format("#define Macro \\\n" 10259 "<<<<<<<\n" 10260 " Something \\\n" 10261 "|||||||\n" 10262 " Else \\\n" 10263 "=======\n" 10264 " Other \\\n" 10265 ">>>>>>>\n" 10266 " End\n" 10267 "int i;\n")); 10268 } 10269 10270 TEST_F(FormatTest, DisableRegions) { 10271 EXPECT_EQ("int i;\n" 10272 "// clang-format off\n" 10273 " int j;\n" 10274 "// clang-format on\n" 10275 "int k;", 10276 format(" int i;\n" 10277 " // clang-format off\n" 10278 " int j;\n" 10279 " // clang-format on\n" 10280 " int k;")); 10281 EXPECT_EQ("int i;\n" 10282 "/* clang-format off */\n" 10283 " int j;\n" 10284 "/* clang-format on */\n" 10285 "int k;", 10286 format(" int i;\n" 10287 " /* clang-format off */\n" 10288 " int j;\n" 10289 " /* clang-format on */\n" 10290 " int k;")); 10291 } 10292 10293 TEST_F(FormatTest, DoNotCrashOnInvalidInput) { format("? ) ="); } 10294 10295 } // end namespace tooling 10296 } // end namespace clang 10297