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 #define DEBUG_TYPE "format-test" 11 12 #include "FormatTestUtils.h" 13 #include "clang/Format/Format.h" 14 #include "llvm/Support/Debug.h" 15 #include "gtest/gtest.h" 16 17 namespace clang { 18 namespace format { 19 20 FormatStyle getGoogleStyle() { 21 return getGoogleStyle(FormatStyle::LK_Cpp); 22 } 23 24 class FormatTest : public ::testing::Test { 25 protected: 26 std::string format(llvm::StringRef Code, unsigned Offset, unsigned Length, 27 const FormatStyle &Style) { 28 DEBUG(llvm::errs() << "---\n"); 29 DEBUG(llvm::errs() << Code << "\n\n"); 30 std::vector<tooling::Range> Ranges(1, tooling::Range(Offset, Length)); 31 tooling::Replacements Replaces = reformat(Style, Code, Ranges); 32 ReplacementCount = Replaces.size(); 33 std::string Result = applyAllReplacements(Code, Replaces); 34 EXPECT_NE("", Result); 35 DEBUG(llvm::errs() << "\n" << Result << "\n\n"); 36 return Result; 37 } 38 39 std::string 40 format(llvm::StringRef Code, const FormatStyle &Style = getLLVMStyle()) { 41 return format(Code, 0, Code.size(), Style); 42 } 43 44 FormatStyle getLLVMStyleWithColumns(unsigned ColumnLimit) { 45 FormatStyle Style = getLLVMStyle(); 46 Style.ColumnLimit = ColumnLimit; 47 return Style; 48 } 49 50 FormatStyle getGoogleStyleWithColumns(unsigned ColumnLimit) { 51 FormatStyle Style = getGoogleStyle(); 52 Style.ColumnLimit = ColumnLimit; 53 return Style; 54 } 55 56 void verifyFormat(llvm::StringRef Code, 57 const FormatStyle &Style = getLLVMStyle()) { 58 EXPECT_EQ(Code.str(), format(test::messUp(Code), Style)); 59 } 60 61 void verifyGoogleFormat(llvm::StringRef Code) { 62 verifyFormat(Code, getGoogleStyle()); 63 } 64 65 void verifyIndependentOfContext(llvm::StringRef text) { 66 verifyFormat(text); 67 verifyFormat(llvm::Twine("void f() { " + text + " }").str()); 68 } 69 70 int ReplacementCount; 71 }; 72 73 TEST_F(FormatTest, MessUp) { 74 EXPECT_EQ("1 2 3", test::messUp("1 2 3")); 75 EXPECT_EQ("1 2 3\n", test::messUp("1\n2\n3\n")); 76 EXPECT_EQ("a\n//b\nc", test::messUp("a\n//b\nc")); 77 EXPECT_EQ("a\n#b\nc", test::messUp("a\n#b\nc")); 78 EXPECT_EQ("a\n#b c d\ne", test::messUp("a\n#b\\\nc\\\nd\ne")); 79 } 80 81 //===----------------------------------------------------------------------===// 82 // Basic function tests. 83 //===----------------------------------------------------------------------===// 84 85 TEST_F(FormatTest, DoesNotChangeCorrectlyFormattedCode) { 86 EXPECT_EQ(";", format(";")); 87 } 88 89 TEST_F(FormatTest, FormatsGlobalStatementsAt0) { 90 EXPECT_EQ("int i;", format(" int i;")); 91 EXPECT_EQ("\nint i;", format(" \n\t \v \f int i;")); 92 EXPECT_EQ("int i;\nint j;", format(" int i; int j;")); 93 EXPECT_EQ("int i;\nint j;", format(" int i;\n int j;")); 94 } 95 96 TEST_F(FormatTest, FormatsUnwrappedLinesAtFirstFormat) { 97 EXPECT_EQ("int i;", format("int\ni;")); 98 } 99 100 TEST_F(FormatTest, FormatsNestedBlockStatements) { 101 EXPECT_EQ("{\n {\n {}\n }\n}", format("{{{}}}")); 102 } 103 104 TEST_F(FormatTest, FormatsNestedCall) { 105 verifyFormat("Method(f1, f2(f3));"); 106 verifyFormat("Method(f1(f2, f3()));"); 107 verifyFormat("Method(f1(f2, (f3())));"); 108 } 109 110 TEST_F(FormatTest, NestedNameSpecifiers) { 111 verifyFormat("vector<::Type> v;"); 112 verifyFormat("::ns::SomeFunction(::ns::SomeOtherFunction())"); 113 verifyFormat("static constexpr bool Bar = decltype(bar())::value;"); 114 } 115 116 TEST_F(FormatTest, OnlyGeneratesNecessaryReplacements) { 117 EXPECT_EQ("if (a) {\n" 118 " f();\n" 119 "}", 120 format("if(a){f();}")); 121 EXPECT_EQ(4, ReplacementCount); 122 EXPECT_EQ("if (a) {\n" 123 " f();\n" 124 "}", 125 format("if (a) {\n" 126 " f();\n" 127 "}")); 128 EXPECT_EQ(0, ReplacementCount); 129 } 130 131 TEST_F(FormatTest, RemovesTrailingWhitespaceOfFormattedLine) { 132 EXPECT_EQ("int a;\nint b;", format("int a; \nint b;", 0, 0, getLLVMStyle())); 133 EXPECT_EQ("int a;", format("int a; ")); 134 EXPECT_EQ("int a;\n", format("int a; \n \n \n ")); 135 EXPECT_EQ("int a;\nint b; ", 136 format("int a; \nint b; ", 0, 0, getLLVMStyle())); 137 } 138 139 TEST_F(FormatTest, FormatsCorrectRegionForLeadingWhitespace) { 140 EXPECT_EQ("int b;\nint a;", 141 format("int b;\n int a;", 7, 0, getLLVMStyle())); 142 EXPECT_EQ("int b;\n int a;", 143 format("int b;\n int a;", 6, 0, getLLVMStyle())); 144 145 EXPECT_EQ("#define A \\\n" 146 " int a; \\\n" 147 " int b;", 148 format("#define A \\\n" 149 " int a; \\\n" 150 " int b;", 151 26, 0, getLLVMStyleWithColumns(12))); 152 EXPECT_EQ("#define A \\\n" 153 " int a; \\\n" 154 " int b;", 155 format("#define A \\\n" 156 " int a; \\\n" 157 " int b;", 158 25, 0, getLLVMStyleWithColumns(12))); 159 } 160 161 TEST_F(FormatTest, RemovesWhitespaceWhenTriggeredOnEmptyLine) { 162 EXPECT_EQ("int a;\n\n int b;", 163 format("int a;\n \n\n int b;", 7, 0, getLLVMStyle())); 164 EXPECT_EQ("int a;\n\n int b;", 165 format("int a;\n \n\n int b;", 9, 0, getLLVMStyle())); 166 } 167 168 TEST_F(FormatTest, RemovesEmptyLines) { 169 EXPECT_EQ("class C {\n" 170 " int i;\n" 171 "};", 172 format("class C {\n" 173 " int i;\n" 174 "\n" 175 "};")); 176 177 // Don't remove empty lines at the start of namespaces. 178 EXPECT_EQ("namespace N {\n" 179 "\n" 180 "int i;\n" 181 "}", 182 format("namespace N {\n" 183 "\n" 184 "int i;\n" 185 "}", 186 getGoogleStyle())); 187 188 // Remove empty lines at the beginning and end of blocks. 189 EXPECT_EQ("void f() {\n" 190 "\n" 191 " if (a) {\n" 192 "\n" 193 " f();\n" 194 " }\n" 195 "}", 196 format("void f() {\n" 197 "\n" 198 " if (a) {\n" 199 "\n" 200 " f();\n" 201 "\n" 202 " }\n" 203 "\n" 204 "}", 205 getLLVMStyle())); 206 EXPECT_EQ("void f() {\n" 207 " if (a) {\n" 208 " f();\n" 209 " }\n" 210 "}", 211 format("void f() {\n" 212 "\n" 213 " if (a) {\n" 214 "\n" 215 " f();\n" 216 "\n" 217 " }\n" 218 "\n" 219 "}", 220 getGoogleStyle())); 221 222 // Don't remove empty lines in more complex control statements. 223 EXPECT_EQ("void f() {\n" 224 " if (a) {\n" 225 " f();\n" 226 "\n" 227 " } else if (b) {\n" 228 " f();\n" 229 " }\n" 230 "}", 231 format("void f() {\n" 232 " if (a) {\n" 233 " f();\n" 234 "\n" 235 " } else if (b) {\n" 236 " f();\n" 237 "\n" 238 " }\n" 239 "\n" 240 "}")); 241 242 // FIXME: This is slightly inconsistent. 243 EXPECT_EQ("namespace {\n" 244 "int i;\n" 245 "}", 246 format("namespace {\n" 247 "int i;\n" 248 "\n" 249 "}")); 250 EXPECT_EQ("namespace {\n" 251 "int i;\n" 252 "\n" 253 "} // namespace", 254 format("namespace {\n" 255 "int i;\n" 256 "\n" 257 "} // namespace")); 258 } 259 260 TEST_F(FormatTest, ReformatsMovedLines) { 261 EXPECT_EQ( 262 "template <typename T> T *getFETokenInfo() const {\n" 263 " return static_cast<T *>(FETokenInfo);\n" 264 "}\n" 265 " int a; // <- Should not be formatted", 266 format( 267 "template<typename T>\n" 268 "T *getFETokenInfo() const { return static_cast<T*>(FETokenInfo); }\n" 269 " int a; // <- Should not be formatted", 270 9, 5, getLLVMStyle())); 271 } 272 273 //===----------------------------------------------------------------------===// 274 // Tests for control statements. 275 //===----------------------------------------------------------------------===// 276 277 TEST_F(FormatTest, FormatIfWithoutCompoundStatement) { 278 verifyFormat("if (true)\n f();\ng();"); 279 verifyFormat("if (a)\n if (b)\n if (c)\n g();\nh();"); 280 verifyFormat("if (a)\n if (b) {\n f();\n }\ng();"); 281 282 FormatStyle AllowsMergedIf = getLLVMStyle(); 283 AllowsMergedIf.AllowShortIfStatementsOnASingleLine = true; 284 verifyFormat("if (a)\n" 285 " // comment\n" 286 " f();", 287 AllowsMergedIf); 288 verifyFormat("if (a)\n" 289 " ;", 290 AllowsMergedIf); 291 verifyFormat("if (a)\n" 292 " if (b) return;", 293 AllowsMergedIf); 294 295 verifyFormat("if (a) // Can't merge this\n" 296 " f();\n", 297 AllowsMergedIf); 298 verifyFormat("if (a) /* still don't merge */\n" 299 " f();", 300 AllowsMergedIf); 301 verifyFormat("if (a) { // Never merge this\n" 302 " f();\n" 303 "}", 304 AllowsMergedIf); 305 verifyFormat("if (a) {/* Never merge this */\n" 306 " f();\n" 307 "}", 308 AllowsMergedIf); 309 310 EXPECT_EQ("if (a) return;", format("if(a)\nreturn;", 7, 1, AllowsMergedIf)); 311 EXPECT_EQ("if (a) return; // comment", 312 format("if(a)\nreturn; // comment", 20, 1, AllowsMergedIf)); 313 314 AllowsMergedIf.ColumnLimit = 14; 315 verifyFormat("if (a) return;", AllowsMergedIf); 316 verifyFormat("if (aaaaaaaaa)\n" 317 " return;", 318 AllowsMergedIf); 319 320 AllowsMergedIf.ColumnLimit = 13; 321 verifyFormat("if (a)\n return;", AllowsMergedIf); 322 } 323 324 TEST_F(FormatTest, FormatLoopsWithoutCompoundStatement) { 325 FormatStyle AllowsMergedLoops = getLLVMStyle(); 326 AllowsMergedLoops.AllowShortLoopsOnASingleLine = true; 327 verifyFormat("while (true) continue;", AllowsMergedLoops); 328 verifyFormat("for (;;) continue;", AllowsMergedLoops); 329 verifyFormat("for (int &v : vec) v *= 2;", AllowsMergedLoops); 330 verifyFormat("while (true)\n" 331 " ;", 332 AllowsMergedLoops); 333 verifyFormat("for (;;)\n" 334 " ;", 335 AllowsMergedLoops); 336 verifyFormat("for (;;)\n" 337 " for (;;) continue;", 338 AllowsMergedLoops); 339 verifyFormat("for (;;) // Can't merge this\n" 340 " continue;", 341 AllowsMergedLoops); 342 verifyFormat("for (;;) /* still don't merge */\n" 343 " continue;", 344 AllowsMergedLoops); 345 } 346 347 TEST_F(FormatTest, ParseIfElse) { 348 verifyFormat("if (true)\n" 349 " if (true)\n" 350 " if (true)\n" 351 " f();\n" 352 " else\n" 353 " g();\n" 354 " else\n" 355 " h();\n" 356 "else\n" 357 " i();"); 358 verifyFormat("if (true)\n" 359 " if (true)\n" 360 " if (true) {\n" 361 " if (true)\n" 362 " f();\n" 363 " } else {\n" 364 " g();\n" 365 " }\n" 366 " else\n" 367 " h();\n" 368 "else {\n" 369 " i();\n" 370 "}"); 371 verifyFormat("void f() {\n" 372 " if (a) {\n" 373 " } else {\n" 374 " }\n" 375 "}"); 376 } 377 378 TEST_F(FormatTest, ElseIf) { 379 verifyFormat("if (a) {\n} else if (b) {\n}"); 380 verifyFormat("if (a)\n" 381 " f();\n" 382 "else if (b)\n" 383 " g();\n" 384 "else\n" 385 " h();"); 386 verifyFormat("if (a) {\n" 387 " f();\n" 388 "}\n" 389 "// or else ..\n" 390 "else {\n" 391 " g()\n" 392 "}"); 393 } 394 395 TEST_F(FormatTest, FormatsForLoop) { 396 verifyFormat( 397 "for (int VeryVeryLongLoopVariable = 0; VeryVeryLongLoopVariable < 10;\n" 398 " ++VeryVeryLongLoopVariable)\n" 399 " ;"); 400 verifyFormat("for (;;)\n" 401 " f();"); 402 verifyFormat("for (;;) {\n}"); 403 verifyFormat("for (;;) {\n" 404 " f();\n" 405 "}"); 406 verifyFormat("for (int i = 0; (i < 10); ++i) {\n}"); 407 408 verifyFormat( 409 "for (std::vector<UnwrappedLine>::iterator I = UnwrappedLines.begin(),\n" 410 " E = UnwrappedLines.end();\n" 411 " I != E; ++I) {\n}"); 412 413 verifyFormat( 414 "for (MachineFun::iterator IIII = PrevIt, EEEE = F.end(); IIII != EEEE;\n" 415 " ++IIIII) {\n}"); 416 verifyFormat("for (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaa =\n" 417 " aaaaaaaaaaaaaaaa.aaaaaaaaaaaaaaa;\n" 418 " aaaaaaaaaaa != aaaaaaaaaaaaaaaaaaa; ++aaaaaaaaaaa) {\n}"); 419 verifyFormat("for (llvm::ArrayRef<NamedDecl *>::iterator\n" 420 " I = FD->getDeclsInPrototypeScope().begin(),\n" 421 " E = FD->getDeclsInPrototypeScope().end();\n" 422 " I != E; ++I) {\n}"); 423 424 // FIXME: Not sure whether we want extra identation in line 3 here: 425 verifyFormat( 426 "for (aaaaaaaaaaaaaaaaa aaaaaaaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;\n" 427 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa !=\n" 428 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 429 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);\n" 430 " ++aaaaaaaaaaa) {\n}"); 431 verifyFormat("for (int aaaaaaaaaaa = 1; aaaaaaaaaaa <= bbbbbbbbbbbbbbb;\n" 432 " aaaaaaaaaaa++, bbbbbbbbbbbbbbbbb++) {\n" 433 "}"); 434 verifyFormat("for (some_namespace::SomeIterator iter( // force break\n" 435 " aaaaaaaaaa);\n" 436 " iter; ++iter) {\n" 437 "}"); 438 439 FormatStyle NoBinPacking = getLLVMStyle(); 440 NoBinPacking.BinPackParameters = false; 441 verifyFormat("for (int aaaaaaaaaaa = 1;\n" 442 " aaaaaaaaaaa <= aaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaa,\n" 443 " aaaaaaaaaaaaaaaa,\n" 444 " aaaaaaaaaaaaaaaa,\n" 445 " aaaaaaaaaaaaaaaa);\n" 446 " aaaaaaaaaaa++, bbbbbbbbbbbbbbbbb++) {\n" 447 "}", 448 NoBinPacking); 449 verifyFormat( 450 "for (std::vector<UnwrappedLine>::iterator I = UnwrappedLines.begin(),\n" 451 " E = UnwrappedLines.end();\n" 452 " I != E;\n" 453 " ++I) {\n}", 454 NoBinPacking); 455 } 456 457 TEST_F(FormatTest, RangeBasedForLoops) { 458 verifyFormat("for (auto aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 459 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}"); 460 verifyFormat("for (auto aaaaaaaaaaaaaaaaaaaaa :\n" 461 " aaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaa, aaaaaaaaaaaaa)) {\n}"); 462 verifyFormat("for (const aaaaaaaaaaaaaaaaaaaaa &aaaaaaaaa :\n" 463 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}"); 464 verifyFormat("for (aaaaaaaaa aaaaaaaaaaaaaaaaaaaaa :\n" 465 " aaaaaaaaaaaa.aaaaaaaaaaaa().aaaaaaaaa().a()) {\n}"); 466 } 467 468 TEST_F(FormatTest, ForEachLoops) { 469 verifyFormat("void f() {\n" 470 " foreach (Item *item, itemlist) {}\n" 471 " Q_FOREACH (Item *item, itemlist) {}\n" 472 " BOOST_FOREACH (Item *item, itemlist) {}\n" 473 " UNKNOWN_FORACH(Item * item, itemlist) {}\n" 474 "}"); 475 } 476 477 TEST_F(FormatTest, FormatsWhileLoop) { 478 verifyFormat("while (true) {\n}"); 479 verifyFormat("while (true)\n" 480 " f();"); 481 verifyFormat("while () {\n}"); 482 verifyFormat("while () {\n" 483 " f();\n" 484 "}"); 485 } 486 487 TEST_F(FormatTest, FormatsDoWhile) { 488 verifyFormat("do {\n" 489 " do_something();\n" 490 "} while (something());"); 491 verifyFormat("do\n" 492 " do_something();\n" 493 "while (something());"); 494 } 495 496 TEST_F(FormatTest, FormatsSwitchStatement) { 497 verifyFormat("switch (x) {\n" 498 "case 1:\n" 499 " f();\n" 500 " break;\n" 501 "case kFoo:\n" 502 "case ns::kBar:\n" 503 "case kBaz:\n" 504 " break;\n" 505 "default:\n" 506 " g();\n" 507 " break;\n" 508 "}"); 509 verifyFormat("switch (x) {\n" 510 "case 1: {\n" 511 " f();\n" 512 " break;\n" 513 "}\n" 514 "case 2: {\n" 515 " break;\n" 516 "}\n" 517 "}"); 518 verifyFormat("switch (x) {\n" 519 "case 1: {\n" 520 " f();\n" 521 " {\n" 522 " g();\n" 523 " h();\n" 524 " }\n" 525 " break;\n" 526 "}\n" 527 "}"); 528 verifyFormat("switch (x) {\n" 529 "case 1: {\n" 530 " f();\n" 531 " if (foo) {\n" 532 " g();\n" 533 " h();\n" 534 " }\n" 535 " break;\n" 536 "}\n" 537 "}"); 538 verifyFormat("switch (x) {\n" 539 "case 1: {\n" 540 " f();\n" 541 " g();\n" 542 "} break;\n" 543 "}"); 544 verifyFormat("switch (test)\n" 545 " ;"); 546 verifyFormat("switch (x) {\n" 547 "default: {\n" 548 " // Do nothing.\n" 549 "}\n" 550 "}"); 551 verifyFormat("switch (x) {\n" 552 "// comment\n" 553 "// if 1, do f()\n" 554 "case 1:\n" 555 " f();\n" 556 "}"); 557 verifyFormat("switch (x) {\n" 558 "case 1:\n" 559 " // Do amazing stuff\n" 560 " {\n" 561 " f();\n" 562 " g();\n" 563 " }\n" 564 " break;\n" 565 "}"); 566 verifyFormat("#define A \\\n" 567 " switch (x) { \\\n" 568 " case a: \\\n" 569 " foo = b; \\\n" 570 " }", getLLVMStyleWithColumns(20)); 571 verifyFormat("#define OPERATION_CASE(name) \\\n" 572 " case OP_name: \\\n" 573 " return operations::Operation##name\n", 574 getLLVMStyleWithColumns(40)); 575 576 verifyGoogleFormat("switch (x) {\n" 577 " case 1:\n" 578 " f();\n" 579 " break;\n" 580 " case kFoo:\n" 581 " case ns::kBar:\n" 582 " case kBaz:\n" 583 " break;\n" 584 " default:\n" 585 " g();\n" 586 " break;\n" 587 "}"); 588 verifyGoogleFormat("switch (x) {\n" 589 " case 1: {\n" 590 " f();\n" 591 " break;\n" 592 " }\n" 593 "}"); 594 verifyGoogleFormat("switch (test)\n" 595 " ;"); 596 597 verifyGoogleFormat("#define OPERATION_CASE(name) \\\n" 598 " case OP_name: \\\n" 599 " return operations::Operation##name\n"); 600 verifyGoogleFormat("Operation codeToOperation(OperationCode OpCode) {\n" 601 " // Get the correction operation class.\n" 602 " switch (OpCode) {\n" 603 " CASE(Add);\n" 604 " CASE(Subtract);\n" 605 " default:\n" 606 " return operations::Unknown;\n" 607 " }\n" 608 "#undef OPERATION_CASE\n" 609 "}"); 610 verifyFormat("DEBUG({\n" 611 " switch (x) {\n" 612 " case A:\n" 613 " f();\n" 614 " break;\n" 615 " // On B:\n" 616 " case B:\n" 617 " g();\n" 618 " break;\n" 619 " }\n" 620 "});"); 621 } 622 623 TEST_F(FormatTest, CaseRanges) { 624 verifyFormat("switch (x) {\n" 625 "case 'A' ... 'Z':\n" 626 "case 1 ... 5:\n" 627 " break;\n" 628 "}"); 629 } 630 631 TEST_F(FormatTest, FormatsLabels) { 632 verifyFormat("void f() {\n" 633 " some_code();\n" 634 "test_label:\n" 635 " some_other_code();\n" 636 " {\n" 637 " some_more_code();\n" 638 " another_label:\n" 639 " some_more_code();\n" 640 " }\n" 641 "}"); 642 verifyFormat("some_code();\n" 643 "test_label:\n" 644 "some_other_code();"); 645 } 646 647 //===----------------------------------------------------------------------===// 648 // Tests for comments. 649 //===----------------------------------------------------------------------===// 650 651 TEST_F(FormatTest, UnderstandsSingleLineComments) { 652 verifyFormat("//* */"); 653 verifyFormat("// line 1\n" 654 "// line 2\n" 655 "void f() {}\n"); 656 657 verifyFormat("void f() {\n" 658 " // Doesn't do anything\n" 659 "}"); 660 verifyFormat("SomeObject\n" 661 " // Calling someFunction on SomeObject\n" 662 " .someFunction();"); 663 verifyFormat("auto result = SomeObject\n" 664 " // Calling someFunction on SomeObject\n" 665 " .someFunction();"); 666 verifyFormat("void f(int i, // some comment (probably for i)\n" 667 " int j, // some comment (probably for j)\n" 668 " int k); // some comment (probably for k)"); 669 verifyFormat("void f(int i,\n" 670 " // some comment (probably for j)\n" 671 " int j,\n" 672 " // some comment (probably for k)\n" 673 " int k);"); 674 675 verifyFormat("int i // This is a fancy variable\n" 676 " = 5; // with nicely aligned comment."); 677 678 verifyFormat("// Leading comment.\n" 679 "int a; // Trailing comment."); 680 verifyFormat("int a; // Trailing comment\n" 681 " // on 2\n" 682 " // or 3 lines.\n" 683 "int b;"); 684 verifyFormat("int a; // Trailing comment\n" 685 "\n" 686 "// Leading comment.\n" 687 "int b;"); 688 verifyFormat("int a; // Comment.\n" 689 " // More details.\n" 690 "int bbbb; // Another comment."); 691 verifyFormat( 692 "int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa; // comment\n" 693 "int bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb; // comment\n" 694 "int cccccccccccccccccccccccccccccc; // comment\n" 695 "int ddd; // looooooooooooooooooooooooong comment\n" 696 "int aaaaaaaaaaaaaaaaaaaaaaa; // comment\n" 697 "int bbbbbbbbbbbbbbbbbbbbb; // comment\n" 698 "int ccccccccccccccccccc; // comment"); 699 700 verifyFormat("#include \"a\" // comment\n" 701 "#include \"a/b/c\" // comment"); 702 verifyFormat("#include <a> // comment\n" 703 "#include <a/b/c> // comment"); 704 EXPECT_EQ("#include \"a\" // comment\n" 705 "#include \"a/b/c\" // comment", 706 format("#include \\\n" 707 " \"a\" // comment\n" 708 "#include \"a/b/c\" // comment")); 709 710 verifyFormat("enum E {\n" 711 " // comment\n" 712 " VAL_A, // comment\n" 713 " VAL_B\n" 714 "};"); 715 716 verifyFormat( 717 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 718 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb; // Trailing comment"); 719 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 720 " // Comment inside a statement.\n" 721 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;"); 722 verifyFormat( 723 "bool aaaaaaaaaaaaa = // comment\n" 724 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 725 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 726 727 verifyFormat("int aaaa; // aaaaa\n" 728 "int aa; // aaaaaaa", 729 getLLVMStyleWithColumns(20)); 730 731 EXPECT_EQ("void f() { // This does something ..\n" 732 "}\n" 733 "int a; // This is unrelated", 734 format("void f() { // This does something ..\n" 735 " }\n" 736 "int a; // This is unrelated")); 737 EXPECT_EQ("class C {\n" 738 " void f() { // This does something ..\n" 739 " } // awesome..\n" 740 "\n" 741 " int a; // This is unrelated\n" 742 "};", 743 format("class C{void f() { // This does something ..\n" 744 " } // awesome..\n" 745 " \n" 746 "int a; // This is unrelated\n" 747 "};")); 748 749 EXPECT_EQ("int i; // single line trailing comment", 750 format("int i;\\\n// single line trailing comment")); 751 752 verifyGoogleFormat("int a; // Trailing comment."); 753 754 verifyFormat("someFunction(anotherFunction( // Force break.\n" 755 " parameter));"); 756 757 verifyGoogleFormat("#endif // HEADER_GUARD"); 758 759 verifyFormat("const char *test[] = {\n" 760 " // A\n" 761 " \"aaaa\",\n" 762 " // B\n" 763 " \"aaaaa\"};"); 764 verifyGoogleFormat( 765 "aaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 766 " aaaaaaaaaaaaaaaaaaaaaa); // 81_cols_with_this_comment"); 767 EXPECT_EQ("D(a, {\n" 768 " // test\n" 769 " int a;\n" 770 "});", 771 format("D(a, {\n" 772 "// test\n" 773 "int a;\n" 774 "});")); 775 776 EXPECT_EQ("lineWith(); // comment\n" 777 "// at start\n" 778 "otherLine();", 779 format("lineWith(); // comment\n" 780 "// at start\n" 781 "otherLine();")); 782 EXPECT_EQ("lineWith(); // comment\n" 783 " // at start\n" 784 "otherLine();", 785 format("lineWith(); // comment\n" 786 " // at start\n" 787 "otherLine();")); 788 789 EXPECT_EQ("lineWith(); // comment\n" 790 "// at start\n" 791 "otherLine(); // comment", 792 format("lineWith(); // comment\n" 793 "// at start\n" 794 "otherLine(); // comment")); 795 EXPECT_EQ("lineWith();\n" 796 "// at start\n" 797 "otherLine(); // comment", 798 format("lineWith();\n" 799 " // at start\n" 800 "otherLine(); // comment")); 801 EXPECT_EQ("// first\n" 802 "// at start\n" 803 "otherLine(); // comment", 804 format("// first\n" 805 " // at start\n" 806 "otherLine(); // comment")); 807 EXPECT_EQ("f();\n" 808 "// first\n" 809 "// at start\n" 810 "otherLine(); // comment", 811 format("f();\n" 812 "// first\n" 813 " // at start\n" 814 "otherLine(); // comment")); 815 verifyFormat("f(); // comment\n" 816 "// first\n" 817 "// at start\n" 818 "otherLine();"); 819 EXPECT_EQ("f(); // comment\n" 820 "// first\n" 821 "// at start\n" 822 "otherLine();", 823 format("f(); // comment\n" 824 "// first\n" 825 " // at start\n" 826 "otherLine();")); 827 EXPECT_EQ("f(); // comment\n" 828 " // first\n" 829 "// at start\n" 830 "otherLine();", 831 format("f(); // comment\n" 832 " // first\n" 833 "// at start\n" 834 "otherLine();")); 835 } 836 837 TEST_F(FormatTest, KeepsParameterWithTrailingCommentsOnTheirOwnLine) { 838 EXPECT_EQ("SomeFunction(a,\n" 839 " b, // comment\n" 840 " c);", 841 format("SomeFunction(a,\n" 842 " b, // comment\n" 843 " c);")); 844 EXPECT_EQ("SomeFunction(a, b,\n" 845 " // comment\n" 846 " c);", 847 format("SomeFunction(a,\n" 848 " b,\n" 849 " // comment\n" 850 " c);")); 851 EXPECT_EQ("SomeFunction(a, b, // comment (unclear relation)\n" 852 " c);", 853 format("SomeFunction(a, b, // comment (unclear relation)\n" 854 " c);")); 855 EXPECT_EQ("SomeFunction(a, // comment\n" 856 " b,\n" 857 " c); // comment", 858 format("SomeFunction(a, // comment\n" 859 " b,\n" 860 " c); // comment")); 861 } 862 863 TEST_F(FormatTest, CanFormatCommentsLocally) { 864 EXPECT_EQ("int a; // comment\n" 865 "int b; // comment", 866 format("int a; // comment\n" 867 "int b; // comment", 868 0, 0, getLLVMStyle())); 869 EXPECT_EQ("int a; // comment\n" 870 " // line 2\n" 871 "int b;", 872 format("int a; // comment\n" 873 " // line 2\n" 874 "int b;", 875 28, 0, getLLVMStyle())); 876 EXPECT_EQ("int aaaaaa; // comment\n" 877 "int b;\n" 878 "int c; // unrelated comment", 879 format("int aaaaaa; // comment\n" 880 "int b;\n" 881 "int c; // unrelated comment", 882 31, 0, getLLVMStyle())); 883 884 EXPECT_EQ("int a; // This\n" 885 " // is\n" 886 " // a", 887 format("int a; // This\n" 888 " // is\n" 889 " // a", 890 0, 0, getLLVMStyle())); 891 EXPECT_EQ("int a; // This\n" 892 " // is\n" 893 " // a\n" 894 "// This is b\n" 895 "int b;", 896 format("int a; // This\n" 897 " // is\n" 898 " // a\n" 899 "// This is b\n" 900 "int b;", 901 0, 0, getLLVMStyle())); 902 EXPECT_EQ("int a; // This\n" 903 " // is\n" 904 " // a\n" 905 "\n" 906 " // This is unrelated", 907 format("int a; // This\n" 908 " // is\n" 909 " // a\n" 910 "\n" 911 " // This is unrelated", 912 0, 0, getLLVMStyle())); 913 EXPECT_EQ("int a;\n" 914 "// This is\n" 915 "// not formatted. ", 916 format("int a;\n" 917 "// This is\n" 918 "// not formatted. ", 919 0, 0, getLLVMStyle())); 920 } 921 922 TEST_F(FormatTest, RemovesTrailingWhitespaceOfComments) { 923 EXPECT_EQ("// comment", format("// comment ")); 924 EXPECT_EQ("int aaaaaaa, bbbbbbb; // comment", 925 format("int aaaaaaa, bbbbbbb; // comment ", 926 getLLVMStyleWithColumns(33))); 927 EXPECT_EQ("// comment\\\n", format("// comment\\\n \t \v \f ")); 928 EXPECT_EQ("// comment \\\n", format("// comment \\\n \t \v \f ")); 929 } 930 931 TEST_F(FormatTest, UnderstandsBlockComments) { 932 verifyFormat("f(/*noSpaceAfterParameterNamingComment=*/true);"); 933 verifyFormat("void f() { g(/*aaa=*/x, /*bbb=*/!y); }"); 934 EXPECT_EQ("f(aaaaaaaaaaaaaaaaaaaaaaaaa, /* Trailing comment for aa... */\n" 935 " bbbbbbbbbbbbbbbbbbbbbbbbb);", 936 format("f(aaaaaaaaaaaaaaaaaaaaaaaaa , \\\n" 937 "/* Trailing comment for aa... */\n" 938 " bbbbbbbbbbbbbbbbbbbbbbbbb);")); 939 EXPECT_EQ( 940 "f(aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 941 " /* Leading comment for bb... */ bbbbbbbbbbbbbbbbbbbbbbbbb);", 942 format("f(aaaaaaaaaaaaaaaaaaaaaaaaa , \n" 943 "/* Leading comment for bb... */ bbbbbbbbbbbbbbbbbbbbbbbbb);")); 944 EXPECT_EQ( 945 "void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 946 " aaaaaaaaaaaaaaaaaa,\n" 947 " aaaaaaaaaaaaaaaaaa) { /*aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa*/\n" 948 "}", 949 format("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 950 " aaaaaaaaaaaaaaaaaa ,\n" 951 " aaaaaaaaaaaaaaaaaa) { /*aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa*/\n" 952 "}")); 953 954 FormatStyle NoBinPacking = getLLVMStyle(); 955 NoBinPacking.BinPackParameters = false; 956 verifyFormat("aaaaaaaa(/* parameter 1 */ aaaaaa,\n" 957 " /* parameter 2 */ aaaaaa,\n" 958 " /* parameter 3 */ aaaaaa,\n" 959 " /* parameter 4 */ aaaaaa);", 960 NoBinPacking); 961 962 // Aligning block comments in macros. 963 verifyGoogleFormat("#define A \\\n" 964 " int i; /*a*/ \\\n" 965 " int jjj; /*b*/"); 966 } 967 968 TEST_F(FormatTest, AlignsBlockComments) { 969 EXPECT_EQ("/*\n" 970 " * Really multi-line\n" 971 " * comment.\n" 972 " */\n" 973 "void f() {}", 974 format(" /*\n" 975 " * Really multi-line\n" 976 " * comment.\n" 977 " */\n" 978 " void f() {}")); 979 EXPECT_EQ("class C {\n" 980 " /*\n" 981 " * Another multi-line\n" 982 " * comment.\n" 983 " */\n" 984 " void f() {}\n" 985 "};", 986 format("class C {\n" 987 "/*\n" 988 " * Another multi-line\n" 989 " * comment.\n" 990 " */\n" 991 "void f() {}\n" 992 "};")); 993 EXPECT_EQ("/*\n" 994 " 1. This is a comment with non-trivial formatting.\n" 995 " 1.1. We have to indent/outdent all lines equally\n" 996 " 1.1.1. to keep the formatting.\n" 997 " */", 998 format(" /*\n" 999 " 1. This is a comment with non-trivial formatting.\n" 1000 " 1.1. We have to indent/outdent all lines equally\n" 1001 " 1.1.1. to keep the formatting.\n" 1002 " */")); 1003 EXPECT_EQ("/*\n" 1004 "Don't try to outdent if there's not enough indentation.\n" 1005 "*/", 1006 format(" /*\n" 1007 " Don't try to outdent if there's not enough indentation.\n" 1008 " */")); 1009 1010 EXPECT_EQ("int i; /* Comment with empty...\n" 1011 " *\n" 1012 " * line. */", 1013 format("int i; /* Comment with empty...\n" 1014 " *\n" 1015 " * line. */")); 1016 EXPECT_EQ("int foobar = 0; /* comment */\n" 1017 "int bar = 0; /* multiline\n" 1018 " comment 1 */\n" 1019 "int baz = 0; /* multiline\n" 1020 " comment 2 */\n" 1021 "int bzz = 0; /* multiline\n" 1022 " comment 3 */", 1023 format("int foobar = 0; /* comment */\n" 1024 "int bar = 0; /* multiline\n" 1025 " comment 1 */\n" 1026 "int baz = 0; /* multiline\n" 1027 " comment 2 */\n" 1028 "int bzz = 0; /* multiline\n" 1029 " comment 3 */")); 1030 EXPECT_EQ("int foobar = 0; /* comment */\n" 1031 "int bar = 0; /* multiline\n" 1032 " comment */\n" 1033 "int baz = 0; /* multiline\n" 1034 "comment */", 1035 format("int foobar = 0; /* comment */\n" 1036 "int bar = 0; /* multiline\n" 1037 "comment */\n" 1038 "int baz = 0; /* multiline\n" 1039 "comment */")); 1040 } 1041 1042 TEST_F(FormatTest, CorrectlyHandlesLengthOfBlockComments) { 1043 EXPECT_EQ("double *x; /* aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 1044 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa */", 1045 format("double *x; /* aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 1046 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa */")); 1047 EXPECT_EQ( 1048 "void ffffffffffff(\n" 1049 " int aaaaaaaa, int bbbbbbbb,\n" 1050 " int cccccccccccc) { /*\n" 1051 " aaaaaaaaaa\n" 1052 " aaaaaaaaaaaaa\n" 1053 " bbbbbbbbbbbbbb\n" 1054 " bbbbbbbbbb\n" 1055 " */\n" 1056 "}", 1057 format("void ffffffffffff(int aaaaaaaa, int bbbbbbbb, int cccccccccccc)\n" 1058 "{ /*\n" 1059 " aaaaaaaaaa aaaaaaaaaaaaa\n" 1060 " bbbbbbbbbbbbbb bbbbbbbbbb\n" 1061 " */\n" 1062 "}", 1063 getLLVMStyleWithColumns(40))); 1064 } 1065 1066 TEST_F(FormatTest, DontBreakNonTrailingBlockComments) { 1067 EXPECT_EQ("void\n" 1068 "ffffffffff(int aaaaa /* test */);", 1069 format("void ffffffffff(int aaaaa /* test */);", 1070 getLLVMStyleWithColumns(35))); 1071 } 1072 1073 TEST_F(FormatTest, SplitsLongCxxComments) { 1074 EXPECT_EQ("// A comment that\n" 1075 "// doesn't fit on\n" 1076 "// one line", 1077 format("// A comment that doesn't fit on one line", 1078 getLLVMStyleWithColumns(20))); 1079 EXPECT_EQ("// a b c d\n" 1080 "// e f g\n" 1081 "// h i j k", 1082 format("// a b c d e f g h i j k", 1083 getLLVMStyleWithColumns(10))); 1084 EXPECT_EQ("// a b c d\n" 1085 "// e f g\n" 1086 "// h i j k", 1087 format("\\\n// a b c d e f g h i j k", 1088 getLLVMStyleWithColumns(10))); 1089 EXPECT_EQ("if (true) // A comment that\n" 1090 " // doesn't fit on\n" 1091 " // one line", 1092 format("if (true) // A comment that doesn't fit on one line ", 1093 getLLVMStyleWithColumns(30))); 1094 EXPECT_EQ("// Don't_touch_leading_whitespace", 1095 format("// Don't_touch_leading_whitespace", 1096 getLLVMStyleWithColumns(20))); 1097 EXPECT_EQ("// Add leading\n" 1098 "// whitespace", 1099 format("//Add leading whitespace", getLLVMStyleWithColumns(20))); 1100 EXPECT_EQ("// whitespace", format("//whitespace", getLLVMStyle())); 1101 EXPECT_EQ("// Even if it makes the line exceed the column\n" 1102 "// limit", 1103 format("//Even if it makes the line exceed the column limit", 1104 getLLVMStyleWithColumns(51))); 1105 EXPECT_EQ("//--But not here", format("//--But not here", getLLVMStyle())); 1106 1107 EXPECT_EQ("// aa bb cc dd", 1108 format("// aa bb cc dd ", 1109 getLLVMStyleWithColumns(15))); 1110 1111 EXPECT_EQ("// A comment before\n" 1112 "// a macro\n" 1113 "// definition\n" 1114 "#define a b", 1115 format("// A comment before a macro definition\n" 1116 "#define a b", 1117 getLLVMStyleWithColumns(20))); 1118 EXPECT_EQ("void\n" 1119 "ffffff(int aaaaaaaaa, // wwww\n" 1120 " int bbbbbbbbbb, // xxxxxxx\n" 1121 " // yyyyyyyyyy\n" 1122 " int c, int d, int e) {}", 1123 format("void ffffff(\n" 1124 " int aaaaaaaaa, // wwww\n" 1125 " int bbbbbbbbbb, // xxxxxxx yyyyyyyyyy\n" 1126 " int c, int d, int e) {}", 1127 getLLVMStyleWithColumns(40))); 1128 EXPECT_EQ("//\t aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 1129 format("//\t aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 1130 getLLVMStyleWithColumns(20))); 1131 EXPECT_EQ( 1132 "#define XXX // a b c d\n" 1133 " // e f g h", 1134 format("#define XXX // a b c d e f g h", getLLVMStyleWithColumns(22))); 1135 EXPECT_EQ( 1136 "#define XXX // q w e r\n" 1137 " // t y u i", 1138 format("#define XXX //q w e r t y u i", getLLVMStyleWithColumns(22))); 1139 } 1140 1141 TEST_F(FormatTest, PreservesHangingIndentInCxxComments) { 1142 EXPECT_EQ("// A comment\n" 1143 "// that doesn't\n" 1144 "// fit on one\n" 1145 "// line", 1146 format("// A comment that doesn't fit on one line", 1147 getLLVMStyleWithColumns(20))); 1148 EXPECT_EQ("/// A comment\n" 1149 "/// that doesn't\n" 1150 "/// fit on one\n" 1151 "/// line", 1152 format("/// A comment that doesn't fit on one line", 1153 getLLVMStyleWithColumns(20))); 1154 } 1155 1156 TEST_F(FormatTest, DontSplitLineCommentsWithEscapedNewlines) { 1157 EXPECT_EQ("// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 1158 "// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 1159 "// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 1160 format("// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 1161 "// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 1162 "// aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")); 1163 EXPECT_EQ("int a; // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1164 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1165 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", 1166 format("int a; // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1167 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1168 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", 1169 getLLVMStyleWithColumns(50))); 1170 // FIXME: One day we might want to implement adjustment of leading whitespace 1171 // of the consecutive lines in this kind of comment: 1172 EXPECT_EQ("int\n" 1173 "a; // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1174 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1175 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", 1176 format("int a; // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1177 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\n" 1178 " // AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", 1179 getLLVMStyleWithColumns(49))); 1180 } 1181 1182 TEST_F(FormatTest, DontSplitLineCommentsWithPragmas) { 1183 FormatStyle Pragmas = getLLVMStyleWithColumns(30); 1184 Pragmas.CommentPragmas = "^ IWYU pragma:"; 1185 EXPECT_EQ( 1186 "// IWYU pragma: aaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbb", 1187 format("// IWYU pragma: aaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbb", Pragmas)); 1188 EXPECT_EQ( 1189 "/* IWYU pragma: aaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbb */", 1190 format("/* IWYU pragma: aaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbb */", Pragmas)); 1191 } 1192 1193 TEST_F(FormatTest, PriorityOfCommentBreaking) { 1194 EXPECT_EQ("if (xxx ==\n" 1195 " yyy && // aaaaaaaaaaaa bbbbbbbbb\n" 1196 " zzz)\n" 1197 " q();", 1198 format("if (xxx == yyy && // aaaaaaaaaaaa bbbbbbbbb\n" 1199 " zzz) q();", 1200 getLLVMStyleWithColumns(40))); 1201 EXPECT_EQ("if (xxxxxxxxxx ==\n" 1202 " yyy && // aaaaaa bbbbbbbb cccc\n" 1203 " zzz)\n" 1204 " q();", 1205 format("if (xxxxxxxxxx == yyy && // aaaaaa bbbbbbbb cccc\n" 1206 " zzz) q();", 1207 getLLVMStyleWithColumns(40))); 1208 EXPECT_EQ("if (xxxxxxxxxx &&\n" 1209 " yyy || // aaaaaa bbbbbbbb cccc\n" 1210 " zzz)\n" 1211 " q();", 1212 format("if (xxxxxxxxxx && yyy || // aaaaaa bbbbbbbb cccc\n" 1213 " zzz) q();", 1214 getLLVMStyleWithColumns(40))); 1215 EXPECT_EQ("fffffffff(\n" 1216 " &xxx, // aaaaaaaaaaaa bbbbbbbbbbb\n" 1217 " zzz);", 1218 format("fffffffff(&xxx, // aaaaaaaaaaaa bbbbbbbbbbb\n" 1219 " zzz);", 1220 getLLVMStyleWithColumns(40))); 1221 } 1222 1223 TEST_F(FormatTest, MultiLineCommentsInDefines) { 1224 EXPECT_EQ("#define A(x) /* \\\n" 1225 " a comment \\\n" 1226 " inside */ \\\n" 1227 " f();", 1228 format("#define A(x) /* \\\n" 1229 " a comment \\\n" 1230 " inside */ \\\n" 1231 " f();", 1232 getLLVMStyleWithColumns(17))); 1233 EXPECT_EQ("#define A( \\\n" 1234 " x) /* \\\n" 1235 " a comment \\\n" 1236 " inside */ \\\n" 1237 " f();", 1238 format("#define A( \\\n" 1239 " x) /* \\\n" 1240 " a comment \\\n" 1241 " inside */ \\\n" 1242 " f();", 1243 getLLVMStyleWithColumns(17))); 1244 } 1245 1246 TEST_F(FormatTest, ParsesCommentsAdjacentToPPDirectives) { 1247 EXPECT_EQ("namespace {}\n// Test\n#define A", 1248 format("namespace {}\n // Test\n#define A")); 1249 EXPECT_EQ("namespace {}\n/* Test */\n#define A", 1250 format("namespace {}\n /* Test */\n#define A")); 1251 EXPECT_EQ("namespace {}\n/* Test */ #define A", 1252 format("namespace {}\n /* Test */ #define A")); 1253 } 1254 1255 TEST_F(FormatTest, SplitsLongLinesInComments) { 1256 EXPECT_EQ("/* This is a long\n" 1257 " * comment that\n" 1258 " * doesn't\n" 1259 " * fit on one line.\n" 1260 " */", 1261 format("/* " 1262 "This is a long " 1263 "comment that " 1264 "doesn't " 1265 "fit on one line. */", 1266 getLLVMStyleWithColumns(20))); 1267 EXPECT_EQ("/* a b c d\n" 1268 " * e f g\n" 1269 " * h i j k\n" 1270 " */", 1271 format("/* a b c d e f g h i j k */", 1272 getLLVMStyleWithColumns(10))); 1273 EXPECT_EQ("/* a b c d\n" 1274 " * e f g\n" 1275 " * h i j k\n" 1276 " */", 1277 format("\\\n/* a b c d e f g h i j k */", 1278 getLLVMStyleWithColumns(10))); 1279 EXPECT_EQ("/*\n" 1280 "This is a long\n" 1281 "comment that doesn't\n" 1282 "fit on one line.\n" 1283 "*/", 1284 format("/*\n" 1285 "This is a long " 1286 "comment that doesn't " 1287 "fit on one line. \n" 1288 "*/", getLLVMStyleWithColumns(20))); 1289 EXPECT_EQ("/*\n" 1290 " * This is a long\n" 1291 " * comment that\n" 1292 " * doesn't fit on\n" 1293 " * one line.\n" 1294 " */", 1295 format("/* \n" 1296 " * This is a long " 1297 " comment that " 1298 " doesn't fit on " 1299 " one line. \n" 1300 " */", getLLVMStyleWithColumns(20))); 1301 EXPECT_EQ("/*\n" 1302 " * This_is_a_comment_with_words_that_dont_fit_on_one_line\n" 1303 " * so_it_should_be_broken\n" 1304 " * wherever_a_space_occurs\n" 1305 " */", 1306 format("/*\n" 1307 " * This_is_a_comment_with_words_that_dont_fit_on_one_line " 1308 " so_it_should_be_broken " 1309 " wherever_a_space_occurs \n" 1310 " */", 1311 getLLVMStyleWithColumns(20))); 1312 EXPECT_EQ("/*\n" 1313 " * This_comment_can_not_be_broken_into_lines\n" 1314 " */", 1315 format("/*\n" 1316 " * This_comment_can_not_be_broken_into_lines\n" 1317 " */", 1318 getLLVMStyleWithColumns(20))); 1319 EXPECT_EQ("{\n" 1320 " /*\n" 1321 " This is another\n" 1322 " long comment that\n" 1323 " doesn't fit on one\n" 1324 " line 1234567890\n" 1325 " */\n" 1326 "}", 1327 format("{\n" 1328 "/*\n" 1329 "This is another " 1330 " long comment that " 1331 " doesn't fit on one" 1332 " line 1234567890\n" 1333 "*/\n" 1334 "}", getLLVMStyleWithColumns(20))); 1335 EXPECT_EQ("{\n" 1336 " /*\n" 1337 " * This i s\n" 1338 " * another comment\n" 1339 " * t hat doesn' t\n" 1340 " * fit on one l i\n" 1341 " * n e\n" 1342 " */\n" 1343 "}", 1344 format("{\n" 1345 "/*\n" 1346 " * This i s" 1347 " another comment" 1348 " t hat doesn' t" 1349 " fit on one l i" 1350 " n e\n" 1351 " */\n" 1352 "}", getLLVMStyleWithColumns(20))); 1353 EXPECT_EQ("/*\n" 1354 " * This is a long\n" 1355 " * comment that\n" 1356 " * doesn't fit on\n" 1357 " * one line\n" 1358 " */", 1359 format(" /*\n" 1360 " * This is a long comment that doesn't fit on one line\n" 1361 " */", getLLVMStyleWithColumns(20))); 1362 EXPECT_EQ("{\n" 1363 " if (something) /* This is a\n" 1364 " long\n" 1365 " comment */\n" 1366 " ;\n" 1367 "}", 1368 format("{\n" 1369 " if (something) /* This is a long comment */\n" 1370 " ;\n" 1371 "}", 1372 getLLVMStyleWithColumns(30))); 1373 1374 EXPECT_EQ("/* A comment before\n" 1375 " * a macro\n" 1376 " * definition */\n" 1377 "#define a b", 1378 format("/* A comment before a macro definition */\n" 1379 "#define a b", 1380 getLLVMStyleWithColumns(20))); 1381 1382 EXPECT_EQ("/* some comment\n" 1383 " * a comment\n" 1384 "* that we break\n" 1385 " * another comment\n" 1386 "* we have to break\n" 1387 "* a left comment\n" 1388 " */", 1389 format(" /* some comment\n" 1390 " * a comment that we break\n" 1391 " * another comment we have to break\n" 1392 "* a left comment\n" 1393 " */", 1394 getLLVMStyleWithColumns(20))); 1395 1396 EXPECT_EQ("/*\n" 1397 "\n" 1398 "\n" 1399 " */\n", 1400 format(" /* \n" 1401 " \n" 1402 " \n" 1403 " */\n")); 1404 1405 EXPECT_EQ("/* a a */", 1406 format("/* a a */", getLLVMStyleWithColumns(15))); 1407 EXPECT_EQ("/* a a bc */", 1408 format("/* a a bc */", getLLVMStyleWithColumns(15))); 1409 EXPECT_EQ("/* aaa aaa\n" 1410 " * aaaaa */", 1411 format("/* aaa aaa aaaaa */", getLLVMStyleWithColumns(15))); 1412 EXPECT_EQ("/* aaa aaa\n" 1413 " * aaaaa */", 1414 format("/* aaa aaa aaaaa */", getLLVMStyleWithColumns(15))); 1415 } 1416 1417 TEST_F(FormatTest, SplitsLongLinesInCommentsInPreprocessor) { 1418 EXPECT_EQ("#define X \\\n" 1419 " /* \\\n" 1420 " Test \\\n" 1421 " Macro comment \\\n" 1422 " with a long \\\n" 1423 " line \\\n" 1424 " */ \\\n" 1425 " A + B", 1426 format("#define X \\\n" 1427 " /*\n" 1428 " Test\n" 1429 " Macro comment with a long line\n" 1430 " */ \\\n" 1431 " A + B", 1432 getLLVMStyleWithColumns(20))); 1433 EXPECT_EQ("#define X \\\n" 1434 " /* Macro comment \\\n" 1435 " with a long \\\n" 1436 " line */ \\\n" 1437 " A + B", 1438 format("#define X \\\n" 1439 " /* Macro comment with a long\n" 1440 " line */ \\\n" 1441 " A + B", 1442 getLLVMStyleWithColumns(20))); 1443 EXPECT_EQ("#define X \\\n" 1444 " /* Macro comment \\\n" 1445 " * with a long \\\n" 1446 " * line */ \\\n" 1447 " A + B", 1448 format("#define X \\\n" 1449 " /* Macro comment with a long line */ \\\n" 1450 " A + B", 1451 getLLVMStyleWithColumns(20))); 1452 } 1453 1454 TEST_F(FormatTest, CommentsInStaticInitializers) { 1455 EXPECT_EQ( 1456 "static SomeType type = {aaaaaaaaaaaaaaaaaaaa, /* comment */\n" 1457 " aaaaaaaaaaaaaaaaaaaa /* comment */,\n" 1458 " /* comment */ aaaaaaaaaaaaaaaaaaaa,\n" 1459 " aaaaaaaaaaaaaaaaaaaa, // comment\n" 1460 " aaaaaaaaaaaaaaaaaaaa};", 1461 format("static SomeType type = { aaaaaaaaaaaaaaaaaaaa , /* comment */\n" 1462 " aaaaaaaaaaaaaaaaaaaa /* comment */ ,\n" 1463 " /* comment */ aaaaaaaaaaaaaaaaaaaa ,\n" 1464 " aaaaaaaaaaaaaaaaaaaa , // comment\n" 1465 " aaaaaaaaaaaaaaaaaaaa };")); 1466 verifyFormat("static SomeType type = {aaaaaaaaaaa, // comment for aa...\n" 1467 " bbbbbbbbbbb, ccccccccccc};"); 1468 verifyFormat("static SomeType type = {aaaaaaaaaaa,\n" 1469 " // comment for bb....\n" 1470 " bbbbbbbbbbb, ccccccccccc};"); 1471 verifyGoogleFormat( 1472 "static SomeType type = {aaaaaaaaaaa, // comment for aa...\n" 1473 " bbbbbbbbbbb, ccccccccccc};"); 1474 verifyGoogleFormat("static SomeType type = {aaaaaaaaaaa,\n" 1475 " // comment for bb....\n" 1476 " bbbbbbbbbbb, ccccccccccc};"); 1477 1478 verifyFormat("S s = {{a, b, c}, // Group #1\n" 1479 " {d, e, f}, // Group #2\n" 1480 " {g, h, i}}; // Group #3"); 1481 verifyFormat("S s = {{// Group #1\n" 1482 " a, b, c},\n" 1483 " {// Group #2\n" 1484 " d, e, f},\n" 1485 " {// Group #3\n" 1486 " g, h, i}};"); 1487 1488 EXPECT_EQ("S s = {\n" 1489 " // Some comment\n" 1490 " a,\n" 1491 "\n" 1492 " // Comment after empty line\n" 1493 " b}", 1494 format("S s = {\n" 1495 " // Some comment\n" 1496 " a,\n" 1497 " \n" 1498 " // Comment after empty line\n" 1499 " b\n" 1500 "}")); 1501 EXPECT_EQ("S s = {\n" 1502 " /* Some comment */\n" 1503 " a,\n" 1504 "\n" 1505 " /* Comment after empty line */\n" 1506 " b}", 1507 format("S s = {\n" 1508 " /* Some comment */\n" 1509 " a,\n" 1510 " \n" 1511 " /* Comment after empty line */\n" 1512 " b\n" 1513 "}")); 1514 verifyFormat("const uint8_t aaaaaaaaaaaaaaaaaaaaaa[0] = {\n" 1515 " 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // comment\n" 1516 " 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // comment\n" 1517 " 0x00, 0x00, 0x00, 0x00}; // comment\n"); 1518 } 1519 1520 TEST_F(FormatTest, IgnoresIf0Contents) { 1521 EXPECT_EQ("#if 0\n" 1522 "}{)(&*(^%%#%@! fsadj f;ldjs ,:;| <<<>>>][)(][\n" 1523 "#endif\n" 1524 "void f() {}", 1525 format("#if 0\n" 1526 "}{)(&*(^%%#%@! fsadj f;ldjs ,:;| <<<>>>][)(][\n" 1527 "#endif\n" 1528 "void f( ) { }")); 1529 EXPECT_EQ("#if false\n" 1530 "void f( ) { }\n" 1531 "#endif\n" 1532 "void g() {}\n", 1533 format("#if false\n" 1534 "void f( ) { }\n" 1535 "#endif\n" 1536 "void g( ) { }\n")); 1537 EXPECT_EQ("enum E {\n" 1538 " One,\n" 1539 " Two,\n" 1540 "#if 0\n" 1541 "Three,\n" 1542 " Four,\n" 1543 "#endif\n" 1544 " Five\n" 1545 "};", 1546 format("enum E {\n" 1547 " One,Two,\n" 1548 "#if 0\n" 1549 "Three,\n" 1550 " Four,\n" 1551 "#endif\n" 1552 " Five};")); 1553 EXPECT_EQ("enum F {\n" 1554 " One,\n" 1555 "#if 1\n" 1556 " Two,\n" 1557 "#if 0\n" 1558 "Three,\n" 1559 " Four,\n" 1560 "#endif\n" 1561 " Five\n" 1562 "#endif\n" 1563 "};", 1564 format("enum F {\n" 1565 "One,\n" 1566 "#if 1\n" 1567 "Two,\n" 1568 "#if 0\n" 1569 "Three,\n" 1570 " Four,\n" 1571 "#endif\n" 1572 "Five\n" 1573 "#endif\n" 1574 "};")); 1575 EXPECT_EQ("enum G {\n" 1576 " One,\n" 1577 "#if 0\n" 1578 "Two,\n" 1579 "#else\n" 1580 " Three,\n" 1581 "#endif\n" 1582 " Four\n" 1583 "};", 1584 format("enum G {\n" 1585 "One,\n" 1586 "#if 0\n" 1587 "Two,\n" 1588 "#else\n" 1589 "Three,\n" 1590 "#endif\n" 1591 "Four\n" 1592 "};")); 1593 EXPECT_EQ("enum H {\n" 1594 " One,\n" 1595 "#if 0\n" 1596 "#ifdef Q\n" 1597 "Two,\n" 1598 "#else\n" 1599 "Three,\n" 1600 "#endif\n" 1601 "#endif\n" 1602 " Four\n" 1603 "};", 1604 format("enum H {\n" 1605 "One,\n" 1606 "#if 0\n" 1607 "#ifdef Q\n" 1608 "Two,\n" 1609 "#else\n" 1610 "Three,\n" 1611 "#endif\n" 1612 "#endif\n" 1613 "Four\n" 1614 "};")); 1615 EXPECT_EQ("enum I {\n" 1616 " One,\n" 1617 "#if /* test */ 0 || 1\n" 1618 "Two,\n" 1619 "Three,\n" 1620 "#endif\n" 1621 " Four\n" 1622 "};", 1623 format("enum I {\n" 1624 "One,\n" 1625 "#if /* test */ 0 || 1\n" 1626 "Two,\n" 1627 "Three,\n" 1628 "#endif\n" 1629 "Four\n" 1630 "};")); 1631 EXPECT_EQ("enum J {\n" 1632 " One,\n" 1633 "#if 0\n" 1634 "#if 0\n" 1635 "Two,\n" 1636 "#else\n" 1637 "Three,\n" 1638 "#endif\n" 1639 "Four,\n" 1640 "#endif\n" 1641 " Five\n" 1642 "};", 1643 format("enum J {\n" 1644 "One,\n" 1645 "#if 0\n" 1646 "#if 0\n" 1647 "Two,\n" 1648 "#else\n" 1649 "Three,\n" 1650 "#endif\n" 1651 "Four,\n" 1652 "#endif\n" 1653 "Five\n" 1654 "};")); 1655 1656 } 1657 1658 //===----------------------------------------------------------------------===// 1659 // Tests for classes, namespaces, etc. 1660 //===----------------------------------------------------------------------===// 1661 1662 TEST_F(FormatTest, DoesNotBreakSemiAfterClassDecl) { 1663 verifyFormat("class A {};"); 1664 } 1665 1666 TEST_F(FormatTest, UnderstandsAccessSpecifiers) { 1667 verifyFormat("class A {\n" 1668 "public:\n" 1669 "public: // comment\n" 1670 "protected:\n" 1671 "private:\n" 1672 " void f() {}\n" 1673 "};"); 1674 verifyGoogleFormat("class A {\n" 1675 " public:\n" 1676 " protected:\n" 1677 " private:\n" 1678 " void f() {}\n" 1679 "};"); 1680 verifyFormat("class A {\n" 1681 "public slots:\n" 1682 " void f() {}\n" 1683 "public Q_SLOTS:\n" 1684 " void f() {}\n" 1685 "};"); 1686 } 1687 1688 TEST_F(FormatTest, SeparatesLogicalBlocks) { 1689 EXPECT_EQ("class A {\n" 1690 "public:\n" 1691 " void f();\n" 1692 "\n" 1693 "private:\n" 1694 " void g() {}\n" 1695 " // test\n" 1696 "protected:\n" 1697 " int h;\n" 1698 "};", 1699 format("class A {\n" 1700 "public:\n" 1701 "void f();\n" 1702 "private:\n" 1703 "void g() {}\n" 1704 "// test\n" 1705 "protected:\n" 1706 "int h;\n" 1707 "};")); 1708 EXPECT_EQ("class A {\n" 1709 "protected:\n" 1710 "public:\n" 1711 " void f();\n" 1712 "};", 1713 format("class A {\n" 1714 "protected:\n" 1715 "\n" 1716 "public:\n" 1717 "\n" 1718 " void f();\n" 1719 "};")); 1720 } 1721 1722 TEST_F(FormatTest, FormatsClasses) { 1723 verifyFormat("class A : public B {};"); 1724 verifyFormat("class A : public ::B {};"); 1725 1726 verifyFormat( 1727 "class AAAAAAAAAAAAAAAAAAAA : public BBBBBBBBBBBBBBBBBBBBBBBBBBBBBB,\n" 1728 " public CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC {};"); 1729 verifyFormat("class AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n" 1730 " : public BBBBBBBBBBBBBBBBBBBBBBBBBBBBBB,\n" 1731 " public CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC {};"); 1732 verifyFormat( 1733 "class A : public B, public C, public D, public E, public F {};"); 1734 verifyFormat("class AAAAAAAAAAAA : public B,\n" 1735 " public C,\n" 1736 " public D,\n" 1737 " public E,\n" 1738 " public F,\n" 1739 " public G {};"); 1740 1741 verifyFormat("class\n" 1742 " ReallyReallyLongClassName {\n" 1743 " int i;\n" 1744 "};", 1745 getLLVMStyleWithColumns(32)); 1746 verifyFormat("struct aaaaaaaaaaaaa : public aaaaaaaaaaaaaaaaaaa< // break\n" 1747 " aaaaaaaaaaaaaaaa> {};"); 1748 verifyFormat("struct aaaaaaaaaaaaaaaaaaaa\n" 1749 " : public aaaaaaaaaaaaaaaaaaa<aaaaaaaaaaaaaaaaaaaaa,\n" 1750 " aaaaaaaaaaaaaaaaaaaaaa> {};"); 1751 verifyFormat("template <class R, class C>\n" 1752 "struct Aaaaaaaaaaaaaaaaa<R (C::*)(int) const>\n" 1753 " : Aaaaaaaaaaaaaaaaa<R (C::*)(int)> {};"); 1754 } 1755 1756 TEST_F(FormatTest, FormatsVariableDeclarationsAfterStructOrClass) { 1757 verifyFormat("class A {\n} a, b;"); 1758 verifyFormat("struct A {\n} a, b;"); 1759 verifyFormat("union A {\n} a;"); 1760 } 1761 1762 TEST_F(FormatTest, FormatsEnum) { 1763 verifyFormat("enum {\n" 1764 " Zero,\n" 1765 " One = 1,\n" 1766 " Two = One + 1,\n" 1767 " Three = (One + Two),\n" 1768 " Four = (Zero && (One ^ Two)) | (One << Two),\n" 1769 " Five = (One, Two, Three, Four, 5)\n" 1770 "};"); 1771 verifyGoogleFormat("enum {\n" 1772 " Zero,\n" 1773 " One = 1,\n" 1774 " Two = One + 1,\n" 1775 " Three = (One + Two),\n" 1776 " Four = (Zero && (One ^ Two)) | (One << Two),\n" 1777 " Five = (One, Two, Three, Four, 5)\n" 1778 "};"); 1779 verifyFormat("enum Enum {};"); 1780 verifyFormat("enum {};"); 1781 verifyFormat("enum X E {} d;"); 1782 verifyFormat("enum __attribute__((...)) E {} d;"); 1783 verifyFormat("enum __declspec__((...)) E {} d;"); 1784 verifyFormat("enum X f() {\n a();\n return 42;\n}"); 1785 verifyFormat("enum {\n" 1786 " Bar = Foo<int, int>::value\n" 1787 "};", 1788 getLLVMStyleWithColumns(30)); 1789 1790 verifyFormat("enum ShortEnum { A, B, C };"); 1791 verifyGoogleFormat("enum ShortEnum { A, B, C };"); 1792 } 1793 1794 TEST_F(FormatTest, FormatsEnumsWithErrors) { 1795 verifyFormat("enum Type {\n" 1796 " One = 0; // These semicolons should be commas.\n" 1797 " Two = 1;\n" 1798 "};"); 1799 verifyFormat("namespace n {\n" 1800 "enum Type {\n" 1801 " One,\n" 1802 " Two, // missing };\n" 1803 " int i;\n" 1804 "}\n" 1805 "void g() {}"); 1806 } 1807 1808 TEST_F(FormatTest, FormatsEnumStruct) { 1809 verifyFormat("enum struct {\n" 1810 " Zero,\n" 1811 " One = 1,\n" 1812 " Two = One + 1,\n" 1813 " Three = (One + Two),\n" 1814 " Four = (Zero && (One ^ Two)) | (One << Two),\n" 1815 " Five = (One, Two, Three, Four, 5)\n" 1816 "};"); 1817 verifyFormat("enum struct Enum {};"); 1818 verifyFormat("enum struct {};"); 1819 verifyFormat("enum struct X E {} d;"); 1820 verifyFormat("enum struct __attribute__((...)) E {} d;"); 1821 verifyFormat("enum struct __declspec__((...)) E {} d;"); 1822 verifyFormat("enum struct X f() {\n a();\n return 42;\n}"); 1823 } 1824 1825 TEST_F(FormatTest, FormatsEnumClass) { 1826 verifyFormat("enum class {\n" 1827 " Zero,\n" 1828 " One = 1,\n" 1829 " Two = One + 1,\n" 1830 " Three = (One + Two),\n" 1831 " Four = (Zero && (One ^ Two)) | (One << Two),\n" 1832 " Five = (One, Two, Three, Four, 5)\n" 1833 "};"); 1834 verifyFormat("enum class Enum {};"); 1835 verifyFormat("enum class {};"); 1836 verifyFormat("enum class X E {} d;"); 1837 verifyFormat("enum class __attribute__((...)) E {} d;"); 1838 verifyFormat("enum class __declspec__((...)) E {} d;"); 1839 verifyFormat("enum class X f() {\n a();\n return 42;\n}"); 1840 } 1841 1842 TEST_F(FormatTest, FormatsEnumTypes) { 1843 verifyFormat("enum X : int {\n" 1844 " A, // Force multiple lines.\n" 1845 " B\n" 1846 "};"); 1847 verifyFormat("enum X : int { A, B };"); 1848 verifyFormat("enum X : std::uint32_t { A, B };"); 1849 } 1850 1851 TEST_F(FormatTest, FormatsNSEnums) { 1852 verifyGoogleFormat("typedef NS_ENUM(NSInteger, SomeName) { AAA, BBB }"); 1853 verifyGoogleFormat("typedef NS_ENUM(NSInteger, MyType) {\n" 1854 " // Information about someDecentlyLongValue.\n" 1855 " someDecentlyLongValue,\n" 1856 " // Information about anotherDecentlyLongValue.\n" 1857 " anotherDecentlyLongValue,\n" 1858 " // Information about aThirdDecentlyLongValue.\n" 1859 " aThirdDecentlyLongValue\n" 1860 "};"); 1861 } 1862 1863 TEST_F(FormatTest, FormatsBitfields) { 1864 verifyFormat("struct Bitfields {\n" 1865 " unsigned sClass : 8;\n" 1866 " unsigned ValueKind : 2;\n" 1867 "};"); 1868 verifyFormat("struct A {\n" 1869 " int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa : 1,\n" 1870 " bbbbbbbbbbbbbbbbbbbbbbbbb;\n" 1871 "};"); 1872 } 1873 1874 TEST_F(FormatTest, FormatsNamespaces) { 1875 verifyFormat("namespace some_namespace {\n" 1876 "class A {};\n" 1877 "void f() { f(); }\n" 1878 "}"); 1879 verifyFormat("namespace {\n" 1880 "class A {};\n" 1881 "void f() { f(); }\n" 1882 "}"); 1883 verifyFormat("inline namespace X {\n" 1884 "class A {};\n" 1885 "void f() { f(); }\n" 1886 "}"); 1887 verifyFormat("using namespace some_namespace;\n" 1888 "class A {};\n" 1889 "void f() { f(); }"); 1890 1891 // This code is more common than we thought; if we 1892 // layout this correctly the semicolon will go into 1893 // its own line, which is undesirable. 1894 verifyFormat("namespace {};"); 1895 verifyFormat("namespace {\n" 1896 "class A {};\n" 1897 "};"); 1898 1899 verifyFormat("namespace {\n" 1900 "int SomeVariable = 0; // comment\n" 1901 "} // namespace"); 1902 EXPECT_EQ("#ifndef HEADER_GUARD\n" 1903 "#define HEADER_GUARD\n" 1904 "namespace my_namespace {\n" 1905 "int i;\n" 1906 "} // my_namespace\n" 1907 "#endif // HEADER_GUARD", 1908 format("#ifndef HEADER_GUARD\n" 1909 " #define HEADER_GUARD\n" 1910 " namespace my_namespace {\n" 1911 "int i;\n" 1912 "} // my_namespace\n" 1913 "#endif // HEADER_GUARD")); 1914 1915 FormatStyle Style = getLLVMStyle(); 1916 Style.NamespaceIndentation = FormatStyle::NI_All; 1917 EXPECT_EQ("namespace out {\n" 1918 " int i;\n" 1919 " namespace in {\n" 1920 " int i;\n" 1921 " } // namespace\n" 1922 "} // namespace", 1923 format("namespace out {\n" 1924 "int i;\n" 1925 "namespace in {\n" 1926 "int i;\n" 1927 "} // namespace\n" 1928 "} // namespace", 1929 Style)); 1930 1931 Style.NamespaceIndentation = FormatStyle::NI_Inner; 1932 EXPECT_EQ("namespace out {\n" 1933 "int i;\n" 1934 "namespace in {\n" 1935 " int i;\n" 1936 "} // namespace\n" 1937 "} // namespace", 1938 format("namespace out {\n" 1939 "int i;\n" 1940 "namespace in {\n" 1941 "int i;\n" 1942 "} // namespace\n" 1943 "} // namespace", 1944 Style)); 1945 } 1946 1947 TEST_F(FormatTest, FormatsExternC) { verifyFormat("extern \"C\" {\nint a;"); } 1948 1949 TEST_F(FormatTest, FormatsInlineASM) { 1950 verifyFormat("asm(\"xyz\" : \"=a\"(a), \"=d\"(b) : \"a\"(data));"); 1951 verifyFormat( 1952 "asm(\"movq\\t%%rbx, %%rsi\\n\\t\"\n" 1953 " \"cpuid\\n\\t\"\n" 1954 " \"xchgq\\t%%rbx, %%rsi\\n\\t\"\n" 1955 " : \"=a\"(*rEAX), \"=S\"(*rEBX), \"=c\"(*rECX), \"=d\"(*rEDX)\n" 1956 " : \"a\"(value));"); 1957 } 1958 1959 TEST_F(FormatTest, FormatTryCatch) { 1960 // FIXME: Handle try-catch explicitly in the UnwrappedLineParser, then we'll 1961 // also not create single-line-blocks. 1962 verifyFormat("try {\n" 1963 " throw a * b;\n" 1964 "}\n" 1965 "catch (int a) {\n" 1966 " // Do nothing.\n" 1967 "}\n" 1968 "catch (...) {\n" 1969 " exit(42);\n" 1970 "}"); 1971 1972 // Function-level try statements. 1973 verifyFormat("int f() try { return 4; }\n" 1974 "catch (...) {\n" 1975 " return 5;\n" 1976 "}"); 1977 verifyFormat("class A {\n" 1978 " int a;\n" 1979 " A() try : a(0) {}\n" 1980 " catch (...) {\n" 1981 " throw;\n" 1982 " }\n" 1983 "};\n"); 1984 } 1985 1986 TEST_F(FormatTest, FormatObjCTryCatch) { 1987 verifyFormat("@try {\n" 1988 " f();\n" 1989 "}\n" 1990 "@catch (NSException e) {\n" 1991 " @throw;\n" 1992 "}\n" 1993 "@finally {\n" 1994 " exit(42);\n" 1995 "}"); 1996 } 1997 1998 TEST_F(FormatTest, StaticInitializers) { 1999 verifyFormat("static SomeClass SC = {1, 'a'};"); 2000 2001 verifyFormat( 2002 "static SomeClass WithALoooooooooooooooooooongName = {\n" 2003 " 100000000, \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"};"); 2004 2005 // Here, everything other than the "}" would fit on a line. 2006 verifyFormat("static int LooooooooooooooooooooooooongVariable[1] = {\n" 2007 " 10000000000000000000000000};"); 2008 EXPECT_EQ("S s = {a, b};", format("S s = {\n" 2009 " a,\n" 2010 "\n" 2011 " b\n" 2012 "};")); 2013 2014 // FIXME: This would fit into the column limit if we'd fit "{ {" on the first 2015 // line. However, the formatting looks a bit off and this probably doesn't 2016 // happen often in practice. 2017 verifyFormat("static int Variable[1] = {\n" 2018 " {1000000000000000000000000000000000000}};", 2019 getLLVMStyleWithColumns(40)); 2020 } 2021 2022 TEST_F(FormatTest, DesignatedInitializers) { 2023 verifyFormat("const struct A a = {.a = 1, .b = 2};"); 2024 verifyFormat("const struct A a = {.aaaaaaaaaa = 1,\n" 2025 " .bbbbbbbbbb = 2,\n" 2026 " .cccccccccc = 3,\n" 2027 " .dddddddddd = 4,\n" 2028 " .eeeeeeeeee = 5};"); 2029 verifyFormat("const struct Aaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaa = {\n" 2030 " .aaaaaaaaaaaaaaaaaaaaaaaaaaa = 1,\n" 2031 " .bbbbbbbbbbbbbbbbbbbbbbbbbbb = 2,\n" 2032 " .ccccccccccccccccccccccccccc = 3,\n" 2033 " .ddddddddddddddddddddddddddd = 4,\n" 2034 " .eeeeeeeeeeeeeeeeeeeeeeeeeee = 5};"); 2035 2036 verifyGoogleFormat("const struct A a = {.a = 1, .b = 2};"); 2037 } 2038 2039 TEST_F(FormatTest, NestedStaticInitializers) { 2040 verifyFormat("static A x = {{{}}};\n"); 2041 verifyFormat("static A x = {{{init1, init2, init3, init4},\n" 2042 " {init1, init2, init3, init4}}};", 2043 getLLVMStyleWithColumns(50)); 2044 2045 verifyFormat("somes Status::global_reps[3] = {\n" 2046 " {kGlobalRef, OK_CODE, NULL, NULL, NULL},\n" 2047 " {kGlobalRef, CANCELLED_CODE, NULL, NULL, NULL},\n" 2048 " {kGlobalRef, UNKNOWN_CODE, NULL, NULL, NULL}};", 2049 getLLVMStyleWithColumns(60)); 2050 verifyGoogleFormat("SomeType Status::global_reps[3] = {\n" 2051 " {kGlobalRef, OK_CODE, NULL, NULL, NULL},\n" 2052 " {kGlobalRef, CANCELLED_CODE, NULL, NULL, NULL},\n" 2053 " {kGlobalRef, UNKNOWN_CODE, NULL, NULL, NULL}};"); 2054 verifyFormat( 2055 "CGRect cg_rect = {{rect.fLeft, rect.fTop},\n" 2056 " {rect.fRight - rect.fLeft, rect.fBottom - rect.fTop}};"); 2057 2058 verifyFormat( 2059 "SomeArrayOfSomeType a = {\n" 2060 " {{1, 2, 3},\n" 2061 " {1, 2, 3},\n" 2062 " {111111111111111111111111111111, 222222222222222222222222222222,\n" 2063 " 333333333333333333333333333333},\n" 2064 " {1, 2, 3},\n" 2065 " {1, 2, 3}}};"); 2066 verifyFormat( 2067 "SomeArrayOfSomeType a = {\n" 2068 " {{1, 2, 3}},\n" 2069 " {{1, 2, 3}},\n" 2070 " {{111111111111111111111111111111, 222222222222222222222222222222,\n" 2071 " 333333333333333333333333333333}},\n" 2072 " {{1, 2, 3}},\n" 2073 " {{1, 2, 3}}};"); 2074 2075 verifyFormat( 2076 "struct {\n" 2077 " unsigned bit;\n" 2078 " const char *const name;\n" 2079 "} kBitsToOs[] = {{kOsMac, \"Mac\"},\n" 2080 " {kOsWin, \"Windows\"},\n" 2081 " {kOsLinux, \"Linux\"},\n" 2082 " {kOsCrOS, \"Chrome OS\"}};"); 2083 } 2084 2085 TEST_F(FormatTest, FormatsSmallMacroDefinitionsInSingleLine) { 2086 verifyFormat("#define ALooooooooooooooooooooooooooooooooooooooongMacro(" 2087 " \\\n" 2088 " aLoooooooooooooooooooooooongFuuuuuuuuuuuuuunctiooooooooo)"); 2089 } 2090 2091 TEST_F(FormatTest, DoesNotBreakPureVirtualFunctionDefinition) { 2092 verifyFormat("virtual void write(ELFWriter *writerrr,\n" 2093 " OwningPtr<FileOutputBuffer> &buffer) = 0;"); 2094 } 2095 2096 TEST_F(FormatTest, BreaksStringLiteralsOnlyInDefine) { 2097 verifyFormat("# 1111 \"/aaaaaaaaa/aaaaaaaaaaaaaaaaaaa/aaaaaaaa.cpp\" 2 3", 2098 getLLVMStyleWithColumns(40)); 2099 verifyFormat("#line 11111 \"/aaaaaaaaa/aaaaaaaaaaaaaaaaaaa/aaaaaaaa.cpp\"", 2100 getLLVMStyleWithColumns(40)); 2101 EXPECT_EQ("#define Q \\\n" 2102 " \"/aaaaaaaaa/aaaaaaaaaaaaaaaaaaa/\" \\\n" 2103 " \"aaaaaaaa.cpp\"", 2104 format("#define Q \"/aaaaaaaaa/aaaaaaaaaaaaaaaaaaa/aaaaaaaa.cpp\"", 2105 getLLVMStyleWithColumns(40))); 2106 } 2107 2108 TEST_F(FormatTest, UnderstandsLinePPDirective) { 2109 EXPECT_EQ("# 123 \"A string literal\"", 2110 format(" # 123 \"A string literal\"")); 2111 } 2112 2113 TEST_F(FormatTest, LayoutUnknownPPDirective) { 2114 EXPECT_EQ("#;", format("#;")); 2115 verifyFormat("#\n;\n;\n;"); 2116 } 2117 2118 TEST_F(FormatTest, UnescapedEndOfLineEndsPPDirective) { 2119 EXPECT_EQ("#line 42 \"test\"\n", 2120 format("# \\\n line \\\n 42 \\\n \"test\"\n")); 2121 EXPECT_EQ("#define A B\n", format("# \\\n define \\\n A \\\n B\n", 2122 getLLVMStyleWithColumns(12))); 2123 } 2124 2125 TEST_F(FormatTest, EndOfFileEndsPPDirective) { 2126 EXPECT_EQ("#line 42 \"test\"", 2127 format("# \\\n line \\\n 42 \\\n \"test\"")); 2128 EXPECT_EQ("#define A B", format("# \\\n define \\\n A \\\n B")); 2129 } 2130 2131 TEST_F(FormatTest, DoesntRemoveUnknownTokens) { 2132 verifyFormat("#define A \\x20"); 2133 verifyFormat("#define A \\ x20"); 2134 EXPECT_EQ("#define A \\ x20", format("#define A \\ x20")); 2135 verifyFormat("#define A ''"); 2136 verifyFormat("#define A ''qqq"); 2137 verifyFormat("#define A `qqq"); 2138 verifyFormat("f(\"aaaa, bbbb, \"\\\"ccccc\\\"\");"); 2139 EXPECT_EQ("const char *c = STRINGIFY(\n" 2140 "\\na : b);", 2141 format("const char * c = STRINGIFY(\n" 2142 "\\na : b);")); 2143 } 2144 2145 TEST_F(FormatTest, IndentsPPDirectiveInReducedSpace) { 2146 verifyFormat("#define A(BB)", getLLVMStyleWithColumns(13)); 2147 verifyFormat("#define A( \\\n BB)", getLLVMStyleWithColumns(12)); 2148 verifyFormat("#define A( \\\n A, B)", getLLVMStyleWithColumns(12)); 2149 // FIXME: We never break before the macro name. 2150 verifyFormat("#define AA( \\\n B)", getLLVMStyleWithColumns(12)); 2151 2152 verifyFormat("#define A A\n#define A A"); 2153 verifyFormat("#define A(X) A\n#define A A"); 2154 2155 verifyFormat("#define Something Other", getLLVMStyleWithColumns(23)); 2156 verifyFormat("#define Something \\\n Other", getLLVMStyleWithColumns(22)); 2157 } 2158 2159 TEST_F(FormatTest, HandlePreprocessorDirectiveContext) { 2160 EXPECT_EQ("// somecomment\n" 2161 "#include \"a.h\"\n" 2162 "#define A( \\\n" 2163 " A, B)\n" 2164 "#include \"b.h\"\n" 2165 "// somecomment\n", 2166 format(" // somecomment\n" 2167 " #include \"a.h\"\n" 2168 "#define A(A,\\\n" 2169 " B)\n" 2170 " #include \"b.h\"\n" 2171 " // somecomment\n", 2172 getLLVMStyleWithColumns(13))); 2173 } 2174 2175 TEST_F(FormatTest, LayoutSingleHash) { EXPECT_EQ("#\na;", format("#\na;")); } 2176 2177 TEST_F(FormatTest, LayoutCodeInMacroDefinitions) { 2178 EXPECT_EQ("#define A \\\n" 2179 " c; \\\n" 2180 " e;\n" 2181 "f;", 2182 format("#define A c; e;\n" 2183 "f;", 2184 getLLVMStyleWithColumns(14))); 2185 } 2186 2187 TEST_F(FormatTest, LayoutRemainingTokens) { EXPECT_EQ("{}", format("{}")); } 2188 2189 TEST_F(FormatTest, AlwaysFormatsEntireMacroDefinitions) { 2190 EXPECT_EQ("int i;\n" 2191 "#define A \\\n" 2192 " int i; \\\n" 2193 " int j\n" 2194 "int k;", 2195 format("int i;\n" 2196 "#define A \\\n" 2197 " int i ; \\\n" 2198 " int j\n" 2199 "int k;", 2200 8, 0, getGoogleStyle())); // 8: position of "#define". 2201 EXPECT_EQ("int i;\n" 2202 "#define A \\\n" 2203 " int i; \\\n" 2204 " int j\n" 2205 "int k;", 2206 format("int i;\n" 2207 "#define A \\\n" 2208 " int i ; \\\n" 2209 " int j\n" 2210 "int k;", 2211 45, 0, getGoogleStyle())); // 45: position of "j". 2212 } 2213 2214 TEST_F(FormatTest, MacroDefinitionInsideStatement) { 2215 EXPECT_EQ("int x,\n" 2216 "#define A\n" 2217 " y;", 2218 format("int x,\n#define A\ny;")); 2219 } 2220 2221 TEST_F(FormatTest, HashInMacroDefinition) { 2222 EXPECT_EQ("#define A(c) L#c", format("#define A(c) L#c", getLLVMStyle())); 2223 verifyFormat("#define A \\\n b #c;", getLLVMStyleWithColumns(11)); 2224 verifyFormat("#define A \\\n" 2225 " { \\\n" 2226 " f(#c); \\\n" 2227 " }", 2228 getLLVMStyleWithColumns(11)); 2229 2230 verifyFormat("#define A(X) \\\n" 2231 " void function##X()", 2232 getLLVMStyleWithColumns(22)); 2233 2234 verifyFormat("#define A(a, b, c) \\\n" 2235 " void a##b##c()", 2236 getLLVMStyleWithColumns(22)); 2237 2238 verifyFormat("#define A void # ## #", getLLVMStyleWithColumns(22)); 2239 } 2240 2241 TEST_F(FormatTest, RespectWhitespaceInMacroDefinitions) { 2242 EXPECT_EQ("#define A (x)", format("#define A (x)")); 2243 EXPECT_EQ("#define A(x)", format("#define A(x)")); 2244 } 2245 2246 TEST_F(FormatTest, EmptyLinesInMacroDefinitions) { 2247 EXPECT_EQ("#define A b;", format("#define A \\\n" 2248 " \\\n" 2249 " b;", 2250 getLLVMStyleWithColumns(25))); 2251 EXPECT_EQ("#define A \\\n" 2252 " \\\n" 2253 " a; \\\n" 2254 " b;", 2255 format("#define A \\\n" 2256 " \\\n" 2257 " a; \\\n" 2258 " b;", 2259 getLLVMStyleWithColumns(11))); 2260 EXPECT_EQ("#define A \\\n" 2261 " a; \\\n" 2262 " \\\n" 2263 " b;", 2264 format("#define A \\\n" 2265 " a; \\\n" 2266 " \\\n" 2267 " b;", 2268 getLLVMStyleWithColumns(11))); 2269 } 2270 2271 TEST_F(FormatTest, MacroDefinitionsWithIncompleteCode) { 2272 verifyFormat("#define A :"); 2273 verifyFormat("#define SOMECASES \\\n" 2274 " case 1: \\\n" 2275 " case 2\n", 2276 getLLVMStyleWithColumns(20)); 2277 verifyFormat("#define A template <typename T>"); 2278 verifyFormat("#define STR(x) #x\n" 2279 "f(STR(this_is_a_string_literal{));"); 2280 verifyFormat("#pragma omp threadprivate( \\\n" 2281 " y)), // expected-warning", 2282 getLLVMStyleWithColumns(28)); 2283 } 2284 2285 TEST_F(FormatTest, MacrosWithoutTrailingSemicolon) { 2286 verifyFormat("SOME_TYPE_NAME abc;"); // Gated on the newline. 2287 EXPECT_EQ("class A : public QObject {\n" 2288 " Q_OBJECT\n" 2289 "\n" 2290 " A() {}\n" 2291 "};", 2292 format("class A : public QObject {\n" 2293 " Q_OBJECT\n" 2294 "\n" 2295 " A() {\n}\n" 2296 "} ;")); 2297 EXPECT_EQ("SOME_MACRO\n" 2298 "namespace {\n" 2299 "void f();\n" 2300 "}", 2301 format("SOME_MACRO\n" 2302 " namespace {\n" 2303 "void f( );\n" 2304 "}")); 2305 // Only if the identifier contains at least 5 characters. 2306 EXPECT_EQ("HTTP f();", 2307 format("HTTP\nf();")); 2308 EXPECT_EQ("MACRO\nf();", 2309 format("MACRO\nf();")); 2310 // Only if everything is upper case. 2311 EXPECT_EQ("class A : public QObject {\n" 2312 " Q_Object A() {}\n" 2313 "};", 2314 format("class A : public QObject {\n" 2315 " Q_Object\n" 2316 "\n" 2317 " A() {\n}\n" 2318 "} ;")); 2319 } 2320 2321 TEST_F(FormatTest, MacroCallsWithoutTrailingSemicolon) { 2322 EXPECT_EQ("INITIALIZE_PASS_BEGIN(ScopDetection, \"polly-detect\")\n" 2323 "INITIALIZE_AG_DEPENDENCY(AliasAnalysis)\n" 2324 "INITIALIZE_PASS_DEPENDENCY(DominatorTree)\n" 2325 "class X {};\n" 2326 "INITIALIZE_PASS_END(ScopDetection, \"polly-detect\")\n" 2327 "int *createScopDetectionPass() { return 0; }", 2328 format(" INITIALIZE_PASS_BEGIN(ScopDetection, \"polly-detect\")\n" 2329 " INITIALIZE_AG_DEPENDENCY(AliasAnalysis)\n" 2330 " INITIALIZE_PASS_DEPENDENCY(DominatorTree)\n" 2331 " class X {};\n" 2332 " INITIALIZE_PASS_END(ScopDetection, \"polly-detect\")\n" 2333 " int *createScopDetectionPass() { return 0; }")); 2334 // FIXME: We could probably treat IPC_BEGIN_MESSAGE_MAP/IPC_END_MESSAGE_MAP as 2335 // braces, so that inner block is indented one level more. 2336 EXPECT_EQ("int q() {\n" 2337 " IPC_BEGIN_MESSAGE_MAP(WebKitTestController, message)\n" 2338 " IPC_MESSAGE_HANDLER(xxx, qqq)\n" 2339 " IPC_END_MESSAGE_MAP()\n" 2340 "}", 2341 format("int q() {\n" 2342 " IPC_BEGIN_MESSAGE_MAP(WebKitTestController, message)\n" 2343 " IPC_MESSAGE_HANDLER(xxx, qqq)\n" 2344 " IPC_END_MESSAGE_MAP()\n" 2345 "}")); 2346 2347 // Same inside macros. 2348 EXPECT_EQ("#define LIST(L) \\\n" 2349 " L(A) \\\n" 2350 " L(B) \\\n" 2351 " L(C)", 2352 format("#define LIST(L) \\\n" 2353 " L(A) \\\n" 2354 " L(B) \\\n" 2355 " L(C)", 2356 getGoogleStyle())); 2357 2358 // These must not be recognized as macros. 2359 EXPECT_EQ("int q() {\n" 2360 " f(x);\n" 2361 " f(x) {}\n" 2362 " f(x)->g();\n" 2363 " f(x)->*g();\n" 2364 " f(x).g();\n" 2365 " f(x) = x;\n" 2366 " f(x) += x;\n" 2367 " f(x) -= x;\n" 2368 " f(x) *= x;\n" 2369 " f(x) /= x;\n" 2370 " f(x) %= x;\n" 2371 " f(x) &= x;\n" 2372 " f(x) |= x;\n" 2373 " f(x) ^= x;\n" 2374 " f(x) >>= x;\n" 2375 " f(x) <<= x;\n" 2376 " f(x)[y].z();\n" 2377 " LOG(INFO) << x;\n" 2378 " ifstream(x) >> x;\n" 2379 "}\n", 2380 format("int q() {\n" 2381 " f(x)\n;\n" 2382 " f(x)\n {}\n" 2383 " f(x)\n->g();\n" 2384 " f(x)\n->*g();\n" 2385 " f(x)\n.g();\n" 2386 " f(x)\n = x;\n" 2387 " f(x)\n += x;\n" 2388 " f(x)\n -= x;\n" 2389 " f(x)\n *= x;\n" 2390 " f(x)\n /= x;\n" 2391 " f(x)\n %= x;\n" 2392 " f(x)\n &= x;\n" 2393 " f(x)\n |= x;\n" 2394 " f(x)\n ^= x;\n" 2395 " f(x)\n >>= x;\n" 2396 " f(x)\n <<= x;\n" 2397 " f(x)\n[y].z();\n" 2398 " LOG(INFO)\n << x;\n" 2399 " ifstream(x)\n >> x;\n" 2400 "}\n")); 2401 EXPECT_EQ("int q() {\n" 2402 " F(x)\n" 2403 " if (1) {\n" 2404 " }\n" 2405 " F(x)\n" 2406 " while (1) {\n" 2407 " }\n" 2408 " F(x)\n" 2409 " G(x);\n" 2410 " F(x)\n" 2411 " try {\n" 2412 " Q();\n" 2413 " }\n" 2414 " catch (...) {\n" 2415 " }\n" 2416 "}\n", 2417 format("int q() {\n" 2418 "F(x)\n" 2419 "if (1) {}\n" 2420 "F(x)\n" 2421 "while (1) {}\n" 2422 "F(x)\n" 2423 "G(x);\n" 2424 "F(x)\n" 2425 "try { Q(); } catch (...) {}\n" 2426 "}\n")); 2427 EXPECT_EQ("class A {\n" 2428 " A() : t(0) {}\n" 2429 " A(X x)\n" // FIXME: function-level try blocks are broken. 2430 " try : t(0) {\n" 2431 " }\n" 2432 " catch (...) {\n" 2433 " }\n" 2434 "};", 2435 format("class A {\n" 2436 " A()\n : t(0) {}\n" 2437 " A(X x)\n" 2438 " try : t(0) {} catch (...) {}\n" 2439 "};")); 2440 EXPECT_EQ( 2441 "class SomeClass {\n" 2442 "public:\n" 2443 " SomeClass() EXCLUSIVE_LOCK_FUNCTION(mu_);\n" 2444 "};", 2445 format("class SomeClass {\n" 2446 "public:\n" 2447 " SomeClass()\n" 2448 " EXCLUSIVE_LOCK_FUNCTION(mu_);\n" 2449 "};")); 2450 EXPECT_EQ( 2451 "class SomeClass {\n" 2452 "public:\n" 2453 " SomeClass()\n" 2454 " EXCLUSIVE_LOCK_FUNCTION(mu_);\n" 2455 "};", 2456 format("class SomeClass {\n" 2457 "public:\n" 2458 " SomeClass()\n" 2459 " EXCLUSIVE_LOCK_FUNCTION(mu_);\n" 2460 "};", getLLVMStyleWithColumns(40))); 2461 } 2462 2463 TEST_F(FormatTest, LayoutMacroDefinitionsStatementsSpanningBlocks) { 2464 verifyFormat("#define A \\\n" 2465 " f({ \\\n" 2466 " g(); \\\n" 2467 " });", getLLVMStyleWithColumns(11)); 2468 } 2469 2470 TEST_F(FormatTest, IndentPreprocessorDirectivesAtZero) { 2471 EXPECT_EQ("{\n {\n#define A\n }\n}", format("{{\n#define A\n}}")); 2472 } 2473 2474 TEST_F(FormatTest, FormatHashIfNotAtStartOfLine) { 2475 verifyFormat("{\n { a #c; }\n}"); 2476 } 2477 2478 TEST_F(FormatTest, FormatUnbalancedStructuralElements) { 2479 EXPECT_EQ("#define A \\\n { \\\n {\nint i;", 2480 format("#define A { {\nint i;", getLLVMStyleWithColumns(11))); 2481 EXPECT_EQ("#define A \\\n } \\\n }\nint i;", 2482 format("#define A } }\nint i;", getLLVMStyleWithColumns(11))); 2483 } 2484 2485 TEST_F(FormatTest, EscapedNewlineAtStartOfToken) { 2486 EXPECT_EQ( 2487 "#define A \\\n int i; \\\n int j;", 2488 format("#define A \\\nint i;\\\n int j;", getLLVMStyleWithColumns(11))); 2489 EXPECT_EQ("template <class T> f();", format("\\\ntemplate <class T> f();")); 2490 } 2491 2492 TEST_F(FormatTest, NoEscapedNewlineHandlingInBlockComments) { 2493 EXPECT_EQ("/* \\ \\ \\\n*/", format("\\\n/* \\ \\ \\\n*/")); 2494 } 2495 2496 TEST_F(FormatTest, CalculateSpaceOnConsecutiveLinesInMacro) { 2497 verifyFormat("#define A \\\n" 2498 " int v( \\\n" 2499 " a); \\\n" 2500 " int i;", 2501 getLLVMStyleWithColumns(11)); 2502 } 2503 2504 TEST_F(FormatTest, MixingPreprocessorDirectivesAndNormalCode) { 2505 EXPECT_EQ( 2506 "#define ALooooooooooooooooooooooooooooooooooooooongMacro(" 2507 " \\\n" 2508 " aLoooooooooooooooooooooooongFuuuuuuuuuuuuuunctiooooooooo)\n" 2509 "\n" 2510 "AlooooooooooooooooooooooooooooooooooooooongCaaaaaaaaaal(\n" 2511 " aLooooooooooooooooooooooonPaaaaaaaaaaaaaaaaaaaaarmmmm);\n", 2512 format(" #define ALooooooooooooooooooooooooooooooooooooooongMacro(" 2513 "\\\n" 2514 "aLoooooooooooooooooooooooongFuuuuuuuuuuuuuunctiooooooooo)\n" 2515 " \n" 2516 " AlooooooooooooooooooooooooooooooooooooooongCaaaaaaaaaal(\n" 2517 " aLooooooooooooooooooooooonPaaaaaaaaaaaaaaaaaaaaarmmmm);\n")); 2518 } 2519 2520 TEST_F(FormatTest, LayoutStatementsAroundPreprocessorDirectives) { 2521 EXPECT_EQ("int\n" 2522 "#define A\n" 2523 " a;", 2524 format("int\n#define A\na;", getGoogleStyle())); 2525 verifyFormat("functionCallTo(\n" 2526 " someOtherFunction(\n" 2527 " withSomeParameters, whichInSequence,\n" 2528 " areLongerThanALine(andAnotherCall,\n" 2529 "#define A B\n" 2530 " withMoreParamters,\n" 2531 " whichStronglyInfluenceTheLayout),\n" 2532 " andMoreParameters),\n" 2533 " trailing);", 2534 getLLVMStyleWithColumns(69)); 2535 verifyFormat("Foo::Foo()\n" 2536 "#ifdef BAR\n" 2537 " : baz(0)\n" 2538 "#endif\n" 2539 "{\n" 2540 "}"); 2541 verifyFormat("void f() {\n" 2542 " if (true)\n" 2543 "#ifdef A\n" 2544 " f(42);\n" 2545 " x();\n" 2546 "#else\n" 2547 " g();\n" 2548 " x();\n" 2549 "#endif\n" 2550 "}"); 2551 verifyFormat("void f(param1, param2,\n" 2552 " param3,\n" 2553 "#ifdef A\n" 2554 " param4(param5,\n" 2555 "#ifdef A1\n" 2556 " param6,\n" 2557 "#ifdef A2\n" 2558 " param7),\n" 2559 "#else\n" 2560 " param8),\n" 2561 " param9,\n" 2562 "#endif\n" 2563 " param10,\n" 2564 "#endif\n" 2565 " param11)\n" 2566 "#else\n" 2567 " param12)\n" 2568 "#endif\n" 2569 "{\n" 2570 " x();\n" 2571 "}", 2572 getLLVMStyleWithColumns(28)); 2573 verifyFormat("#if 1\n" 2574 "int i;"); 2575 verifyFormat( 2576 "#if 1\n" 2577 "#endif\n" 2578 "#if 1\n" 2579 "#else\n" 2580 "#endif\n"); 2581 verifyFormat("DEBUG({\n" 2582 " return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 2583 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;\n" 2584 "});\n" 2585 "#if a\n" 2586 "#else\n" 2587 "#endif"); 2588 } 2589 2590 TEST_F(FormatTest, GraciouslyHandleIncorrectPreprocessorConditions) { 2591 verifyFormat("#endif\n" 2592 "#if B"); 2593 } 2594 2595 TEST_F(FormatTest, FormatsJoinedLinesOnSubsequentRuns) { 2596 FormatStyle SingleLine = getLLVMStyle(); 2597 SingleLine.AllowShortIfStatementsOnASingleLine = true; 2598 verifyFormat( 2599 "#if 0\n" 2600 "#elif 1\n" 2601 "#endif\n" 2602 "void foo() {\n" 2603 " if (test) foo2();\n" 2604 "}", 2605 SingleLine); 2606 } 2607 2608 TEST_F(FormatTest, LayoutBlockInsideParens) { 2609 EXPECT_EQ("functionCall({ int i; });", format(" functionCall ( {int i;} );")); 2610 EXPECT_EQ("functionCall({\n" 2611 " int i;\n" 2612 " int j;\n" 2613 "});", 2614 format(" functionCall ( {int i;int j;} );")); 2615 EXPECT_EQ("functionCall({\n" 2616 " int i;\n" 2617 " int j;\n" 2618 " },\n" 2619 " aaaa, bbbb, cccc);", 2620 format(" functionCall ( {int i;int j;}, aaaa, bbbb, cccc);")); 2621 EXPECT_EQ("functionCall(aaaa, bbbb, { int i; });", 2622 format(" functionCall (aaaa, bbbb, {int i;});")); 2623 EXPECT_EQ("functionCall(aaaa, bbbb, {\n" 2624 " int i;\n" 2625 " int j;\n" 2626 "});", 2627 format(" functionCall (aaaa, bbbb, {int i;int j;});")); 2628 EXPECT_EQ("functionCall(aaaa, bbbb, { int i; });", 2629 format(" functionCall (aaaa, bbbb, {int i;});")); 2630 verifyFormat( 2631 "Aaa({\n" 2632 " int i; // break\n" 2633 " },\n" 2634 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb,\n" 2635 " ccccccccccccccccc));"); 2636 verifyFormat("DEBUG({\n" 2637 " if (a)\n" 2638 " f();\n" 2639 "});"); 2640 } 2641 2642 TEST_F(FormatTest, LayoutBlockInsideStatement) { 2643 EXPECT_EQ("SOME_MACRO { int i; }\n" 2644 "int i;", 2645 format(" SOME_MACRO {int i;} int i;")); 2646 } 2647 2648 TEST_F(FormatTest, LayoutNestedBlocks) { 2649 verifyFormat("void AddOsStrings(unsigned bitmask) {\n" 2650 " struct s {\n" 2651 " int i;\n" 2652 " };\n" 2653 " s kBitsToOs[] = {{10}};\n" 2654 " for (int i = 0; i < 10; ++i)\n" 2655 " return;\n" 2656 "}"); 2657 verifyFormat("call(parameter, {\n" 2658 " something();\n" 2659 " // Comment using all columns.\n" 2660 " somethingelse();\n" 2661 "});", 2662 getLLVMStyleWithColumns(40)); 2663 verifyFormat("DEBUG( //\n" 2664 " { f(); }, a);"); 2665 verifyFormat("DEBUG( //\n" 2666 " {\n" 2667 " f(); //\n" 2668 " },\n" 2669 " a);"); 2670 2671 EXPECT_EQ("call(parameter, {\n" 2672 " something();\n" 2673 " // Comment too\n" 2674 " // looooooooooong.\n" 2675 " somethingElse();\n" 2676 "});", 2677 format("call(parameter, {\n" 2678 " something();\n" 2679 " // Comment too looooooooooong.\n" 2680 " somethingElse();\n" 2681 "});", 2682 getLLVMStyleWithColumns(29))); 2683 EXPECT_EQ("DEBUG({ int i; });", format("DEBUG({ int i; });")); 2684 EXPECT_EQ("DEBUG({ // comment\n" 2685 " int i;\n" 2686 "});", 2687 format("DEBUG({ // comment\n" 2688 "int i;\n" 2689 "});")); 2690 EXPECT_EQ("DEBUG({\n" 2691 " int i;\n" 2692 "\n" 2693 " // comment\n" 2694 " int j;\n" 2695 "});", 2696 format("DEBUG({\n" 2697 " int i;\n" 2698 "\n" 2699 " // comment\n" 2700 " int j;\n" 2701 "});")); 2702 2703 verifyFormat("DEBUG({\n" 2704 " if (a)\n" 2705 " return;\n" 2706 "});"); 2707 verifyGoogleFormat("DEBUG({\n" 2708 " if (a) return;\n" 2709 "});"); 2710 FormatStyle Style = getGoogleStyle(); 2711 Style.ColumnLimit = 45; 2712 verifyFormat("Debug(aaaaa, {\n" 2713 " if (aaaaaaaaaaaaaaaaaaaaaaaa)\n" 2714 " return;\n" 2715 " },\n" 2716 " a);", Style); 2717 } 2718 2719 TEST_F(FormatTest, IndividualStatementsOfNestedBlocks) { 2720 EXPECT_EQ("DEBUG({\n" 2721 " int i;\n" 2722 " int j;\n" 2723 "});", 2724 format("DEBUG( {\n" 2725 " int i;\n" 2726 " int j;\n" 2727 "} ) ;", 2728 20, 1, getLLVMStyle())); 2729 EXPECT_EQ("DEBUG( {\n" 2730 " int i;\n" 2731 " int j;\n" 2732 "} ) ;", 2733 format("DEBUG( {\n" 2734 " int i;\n" 2735 " int j;\n" 2736 "} ) ;", 2737 41, 1, getLLVMStyle())); 2738 EXPECT_EQ("DEBUG( {\n" 2739 " int i;\n" 2740 " int j;\n" 2741 "} ) ;", 2742 format("DEBUG( {\n" 2743 " int i;\n" 2744 " int j;\n" 2745 "} ) ;", 2746 41, 1, getLLVMStyle())); 2747 EXPECT_EQ("DEBUG({\n" 2748 " int i;\n" 2749 " int j;\n" 2750 "});", 2751 format("DEBUG( {\n" 2752 " int i;\n" 2753 " int j;\n" 2754 "} ) ;", 2755 20, 1, getLLVMStyle())); 2756 2757 EXPECT_EQ("Debug({\n" 2758 " if (aaaaaaaaaaaaaaaaaaaaaaaa)\n" 2759 " return;\n" 2760 " },\n" 2761 " a);", 2762 format("Debug({\n" 2763 " if (aaaaaaaaaaaaaaaaaaaaaaaa)\n" 2764 " return;\n" 2765 " },\n" 2766 " a);", 2767 50, 1, getLLVMStyle())); 2768 EXPECT_EQ("DEBUG({\n" 2769 " DEBUG({\n" 2770 " int a;\n" 2771 " int b;\n" 2772 " }) ;\n" 2773 "});", 2774 format("DEBUG({\n" 2775 " DEBUG({\n" 2776 " int a;\n" 2777 " int b;\n" // Format this line only. 2778 " }) ;\n" // Don't touch this line. 2779 "});", 2780 35, 0, getLLVMStyle())); 2781 EXPECT_EQ("DEBUG({\n" 2782 " int a; //\n" 2783 "});", 2784 format("DEBUG({\n" 2785 " int a; //\n" 2786 "});", 2787 0, 0, getLLVMStyle())); 2788 } 2789 2790 TEST_F(FormatTest, PutEmptyBlocksIntoOneLine) { 2791 EXPECT_EQ("{}", format("{}")); 2792 verifyFormat("enum E {};"); 2793 verifyFormat("enum E {}"); 2794 } 2795 2796 //===----------------------------------------------------------------------===// 2797 // Line break tests. 2798 //===----------------------------------------------------------------------===// 2799 2800 TEST_F(FormatTest, PreventConfusingIndents) { 2801 verifyFormat( 2802 "void f() {\n" 2803 " SomeLongMethodName(SomeReallyLongMethod(CallOtherReallyLongMethod(\n" 2804 " parameter, parameter, parameter)),\n" 2805 " SecondLongCall(parameter));\n" 2806 "}"); 2807 verifyFormat( 2808 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 2809 " aaaaaaaaaaaaaaaaaaaaaaaa(\n" 2810 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 2811 " aaaaaaaaaaaaaaaaaaaaaaaa);"); 2812 verifyFormat( 2813 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 2814 " [aaaaaaaaaaaaaaaaaaaaaaaa\n" 2815 " [aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa]\n" 2816 " [aaaaaaaaaaaaaaaaaaaaaaaa]];"); 2817 verifyFormat( 2818 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa<\n" 2819 " aaaaaaaaaaaaaaaaaaaaaaaa<\n" 2820 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>,\n" 2821 " aaaaaaaaaaaaaaaaaaaaaaaa>;"); 2822 verifyFormat("int a = bbbb && ccc && fffff(\n" 2823 "#define A Just forcing a new line\n" 2824 " ddd);"); 2825 } 2826 2827 TEST_F(FormatTest, LineBreakingInBinaryExpressions) { 2828 verifyFormat( 2829 "bool aaaaaaa =\n" 2830 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaa).aaaaaaaaaaaaaaaaaaa() ||\n" 2831 " bbbbbbbb();"); 2832 verifyFormat("bool aaaaaaaaaaaaaaaaaaaaa =\n" 2833 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa != bbbbbbbbbbbbbbbbbb &&\n" 2834 " ccccccccc == ddddddddddd;"); 2835 2836 verifyFormat("aaaaaa = aaaaaaa(aaaaaaa, // break\n" 2837 " aaaaaa) &&\n" 2838 " bbbbbb && cccccc;"); 2839 verifyFormat("aaaaaa = aaaaaaa(aaaaaaa, // break\n" 2840 " aaaaaa) >>\n" 2841 " bbbbbb;"); 2842 verifyFormat("Whitespaces.addUntouchableComment(\n" 2843 " SourceMgr.getSpellingColumnNumber(\n" 2844 " TheLine.Last->FormatTok.Tok.getLocation()) -\n" 2845 " 1);"); 2846 2847 verifyFormat("if ((aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 2848 " bbbbbbbbbbbbbbbbbb) && // aaaaaaaaaaaaaaaa\n" 2849 " cccccc) {\n}"); 2850 2851 // If the LHS of a comparison is not a binary expression itself, the 2852 // additional linebreak confuses many people. 2853 verifyFormat( 2854 "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 2855 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) > 5) {\n" 2856 "}"); 2857 verifyFormat( 2858 "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 2859 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) == 5) {\n" 2860 "}"); 2861 verifyFormat( 2862 "if (aaaaaaaaaaaaaaaaaaaaaaaaaa.aaaaaaaaaaaaaaaaaaaaaa(\n" 2863 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) == 5) {\n" 2864 "}"); 2865 // Even explicit parentheses stress the precedence enough to make the 2866 // additional break unnecessary. 2867 verifyFormat( 2868 "if ((aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 2869 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) == 5) {\n" 2870 "}"); 2871 // This cases is borderline, but with the indentation it is still readable. 2872 verifyFormat( 2873 "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 2874 " aaaaaaaaaaaaaaa) > aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 2875 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n" 2876 "}", 2877 getLLVMStyleWithColumns(75)); 2878 2879 // If the LHS is a binary expression, we should still use the additional break 2880 // as otherwise the formatting hides the operator precedence. 2881 verifyFormat( 2882 "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 2883 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n" 2884 " 5) {\n" 2885 "}"); 2886 2887 FormatStyle OnePerLine = getLLVMStyle(); 2888 OnePerLine.BinPackParameters = false; 2889 verifyFormat( 2890 "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 2891 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 2892 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}", 2893 OnePerLine); 2894 } 2895 2896 TEST_F(FormatTest, ExpressionIndentation) { 2897 verifyFormat("bool value = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 2898 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 2899 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n" 2900 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n" 2901 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb +\n" 2902 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb &&\n" 2903 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n" 2904 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa >\n" 2905 " ccccccccccccccccccccccccccccccccccccccccc;"); 2906 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n" 2907 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 2908 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n" 2909 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}"); 2910 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 2911 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n" 2912 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n" 2913 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}"); 2914 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==\n" 2915 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *\n" 2916 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 2917 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}"); 2918 verifyFormat("if () {\n" 2919 "} else if (aaaaa &&\n" 2920 " bbbbb > // break\n" 2921 " ccccc) {\n" 2922 "}"); 2923 2924 // Presence of a trailing comment used to change indentation of b. 2925 verifyFormat("return aaaaaaaaaaaaaaaaaaa +\n" 2926 " b;\n" 2927 "return aaaaaaaaaaaaaaaaaaa +\n" 2928 " b; //", 2929 getLLVMStyleWithColumns(30)); 2930 } 2931 2932 TEST_F(FormatTest, ExpressionIndentationBreakingBeforeOperators) { 2933 // Not sure what the best system is here. Like this, the LHS can be found 2934 // immediately above an operator (everything with the same or a higher 2935 // indent). The RHS is aligned right of the operator and so compasses 2936 // everything until something with the same indent as the operator is found. 2937 // FIXME: Is this a good system? 2938 FormatStyle Style = getLLVMStyle(); 2939 Style.BreakBeforeBinaryOperators = true; 2940 verifyFormat( 2941 "bool value = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 2942 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 2943 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 2944 " == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 2945 " * bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 2946 " + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 2947 " && aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 2948 " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 2949 " > ccccccccccccccccccccccccccccccccccccccccc;", 2950 Style); 2951 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 2952 " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 2953 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 2954 " == bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}", 2955 Style); 2956 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 2957 " + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 2958 " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 2959 " == bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}", 2960 Style); 2961 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 2962 " == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 2963 " * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 2964 " + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}", 2965 Style); 2966 verifyFormat("if () {\n" 2967 "} else if (aaaaa\n" 2968 " && bbbbb // break\n" 2969 " > ccccc) {\n" 2970 "}", 2971 Style); 2972 2973 // Forced by comments. 2974 verifyFormat( 2975 "unsigned ContentSize =\n" 2976 " sizeof(int16_t) // DWARF ARange version number\n" 2977 " + sizeof(int32_t) // Offset of CU in the .debug_info section\n" 2978 " + sizeof(int8_t) // Pointer Size (in bytes)\n" 2979 " + sizeof(int8_t); // Segment Size (in bytes)"); 2980 2981 verifyFormat("return boost::fusion::at_c<0>(iiii).second\n" 2982 " == boost::fusion::at_c<1>(iiii).second;", 2983 Style); 2984 } 2985 2986 TEST_F(FormatTest, ConstructorInitializers) { 2987 verifyFormat("Constructor() : Initializer(FitsOnTheLine) {}"); 2988 verifyFormat("Constructor() : Inttializer(FitsOnTheLine) {}", 2989 getLLVMStyleWithColumns(45)); 2990 verifyFormat("Constructor()\n" 2991 " : Inttializer(FitsOnTheLine) {}", 2992 getLLVMStyleWithColumns(44)); 2993 verifyFormat("Constructor()\n" 2994 " : Inttializer(FitsOnTheLine) {}", 2995 getLLVMStyleWithColumns(43)); 2996 2997 verifyFormat( 2998 "SomeClass::Constructor()\n" 2999 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaaaa(aaaaaaaaaaaa) {}"); 3000 3001 verifyFormat( 3002 "SomeClass::Constructor()\n" 3003 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 3004 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}"); 3005 verifyFormat( 3006 "SomeClass::Constructor()\n" 3007 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 3008 " aaaaaaaaaaaaaaa(aaaaaaaaaaaa) {}"); 3009 3010 verifyFormat("Constructor()\n" 3011 " : aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 3012 " aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3013 " aaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 3014 " aaaaaaaaaaaaaaaaaaaaaaa() {}"); 3015 3016 verifyFormat("Constructor()\n" 3017 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3018 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}"); 3019 3020 verifyFormat("Constructor(int Parameter = 0)\n" 3021 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaa),\n" 3022 " aaaaaaaaaaaa(aaaaaaaaaaaaaaaaa) {}"); 3023 verifyFormat("Constructor()\n" 3024 " : aaaaaaaaaaaaaaaaaaaa(a), bbbbbbbbbbbbbbbbbbbbbbbb(b) {\n" 3025 "}", 3026 getLLVMStyleWithColumns(60)); 3027 verifyFormat("Constructor()\n" 3028 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3029 " aaaaaaaaaaaaaaaaaaaaaaaaa(aaaa, aaaa)) {}"); 3030 3031 // Here a line could be saved by splitting the second initializer onto two 3032 // lines, but that is not desirable. 3033 verifyFormat("Constructor()\n" 3034 " : aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaa),\n" 3035 " aaaaaaaaaaa(aaaaaaaaaaa),\n" 3036 " aaaaaaaaaaaaaaaaaaaaat(aaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}"); 3037 3038 FormatStyle OnePerLine = getLLVMStyle(); 3039 OnePerLine.ConstructorInitializerAllOnOneLineOrOnePerLine = true; 3040 verifyFormat("SomeClass::Constructor()\n" 3041 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 3042 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 3043 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}", 3044 OnePerLine); 3045 verifyFormat("SomeClass::Constructor()\n" 3046 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), // Some comment\n" 3047 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 3048 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}", 3049 OnePerLine); 3050 verifyFormat("MyClass::MyClass(int var)\n" 3051 " : some_var_(var), // 4 space indent\n" 3052 " some_other_var_(var + 1) { // lined up\n" 3053 "}", 3054 OnePerLine); 3055 verifyFormat("Constructor()\n" 3056 " : aaaaa(aaaaaa),\n" 3057 " aaaaa(aaaaaa),\n" 3058 " aaaaa(aaaaaa),\n" 3059 " aaaaa(aaaaaa),\n" 3060 " aaaaa(aaaaaa) {}", 3061 OnePerLine); 3062 verifyFormat("Constructor()\n" 3063 " : aaaaa(aaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaa,\n" 3064 " aaaaaaaaaaaaaaaaaaaaaa) {}", 3065 OnePerLine); 3066 3067 EXPECT_EQ("Constructor()\n" 3068 " : // Comment forcing unwanted break.\n" 3069 " aaaa(aaaa) {}", 3070 format("Constructor() :\n" 3071 " // Comment forcing unwanted break.\n" 3072 " aaaa(aaaa) {}")); 3073 } 3074 3075 TEST_F(FormatTest, MemoizationTests) { 3076 // This breaks if the memoization lookup does not take \c Indent and 3077 // \c LastSpace into account. 3078 verifyFormat( 3079 "extern CFRunLoopTimerRef\n" 3080 "CFRunLoopTimerCreate(CFAllocatorRef allocato, CFAbsoluteTime fireDate,\n" 3081 " CFTimeInterval interval, CFOptionFlags flags,\n" 3082 " CFIndex order, CFRunLoopTimerCallBack callout,\n" 3083 " CFRunLoopTimerContext *context) {}"); 3084 3085 // Deep nesting somewhat works around our memoization. 3086 verifyFormat( 3087 "aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(\n" 3088 " aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(\n" 3089 " aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(\n" 3090 " aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(\n" 3091 " aaaaa())))))))))))))))))))))))))))))))))))))));", 3092 getLLVMStyleWithColumns(65)); 3093 verifyFormat( 3094 "aaaaa(\n" 3095 " aaaaa,\n" 3096 " aaaaa(\n" 3097 " aaaaa,\n" 3098 " aaaaa(\n" 3099 " aaaaa,\n" 3100 " aaaaa(\n" 3101 " aaaaa,\n" 3102 " aaaaa(\n" 3103 " aaaaa,\n" 3104 " aaaaa(\n" 3105 " aaaaa,\n" 3106 " aaaaa(\n" 3107 " aaaaa,\n" 3108 " aaaaa(\n" 3109 " aaaaa,\n" 3110 " aaaaa(\n" 3111 " aaaaa,\n" 3112 " aaaaa(\n" 3113 " aaaaa,\n" 3114 " aaaaa(\n" 3115 " aaaaa,\n" 3116 " aaaaa(\n" 3117 " aaaaa,\n" 3118 " aaaaa))))))))))));", 3119 getLLVMStyleWithColumns(65)); 3120 verifyFormat( 3121 "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" 3122 " a),\n" 3123 " a),\n" 3124 " a),\n" 3125 " a),\n" 3126 " a),\n" 3127 " a),\n" 3128 " a),\n" 3129 " a),\n" 3130 " a),\n" 3131 " a),\n" 3132 " a),\n" 3133 " a),\n" 3134 " a),\n" 3135 " a),\n" 3136 " a),\n" 3137 " a),\n" 3138 " a)", 3139 getLLVMStyleWithColumns(65)); 3140 3141 // This test takes VERY long when memoization is broken. 3142 FormatStyle OnePerLine = getLLVMStyle(); 3143 OnePerLine.ConstructorInitializerAllOnOneLineOrOnePerLine = true; 3144 OnePerLine.BinPackParameters = false; 3145 std::string input = "Constructor()\n" 3146 " : aaaa(a,\n"; 3147 for (unsigned i = 0, e = 80; i != e; ++i) { 3148 input += " a,\n"; 3149 } 3150 input += " a) {}"; 3151 verifyFormat(input, OnePerLine); 3152 } 3153 3154 TEST_F(FormatTest, BreaksAsHighAsPossible) { 3155 verifyFormat( 3156 "void f() {\n" 3157 " if ((aaaaaaaaaaaaaaaaaaaaaaaaaaaaa && aaaaaaaaaaaaaaaaaaaaaaaaaa) ||\n" 3158 " (bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb && bbbbbbbbbbbbbbbbbbbbbbbbbb))\n" 3159 " f();\n" 3160 "}"); 3161 verifyFormat("if (Intervals[i].getRange().getFirst() <\n" 3162 " Intervals[i - 1].getRange().getLast()) {\n}"); 3163 } 3164 3165 TEST_F(FormatTest, BreaksFunctionDeclarations) { 3166 // Principially, we break function declarations in a certain order: 3167 // 1) break amongst arguments. 3168 verifyFormat("Aaaaaaaaaaaaaa bbbbbbbbbbbbbb(Cccccccccccccc cccccccccccccc,\n" 3169 " Cccccccccccccc cccccccccccccc);"); 3170 verifyFormat( 3171 "template <class TemplateIt>\n" 3172 "SomeReturnType SomeFunction(TemplateIt begin, TemplateIt end,\n" 3173 " TemplateIt *stop) {}"); 3174 3175 // 2) break after return type. 3176 verifyFormat( 3177 "Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3178 " bbbbbbbbbbbbbb(Cccccccccccccc cccccccccccccccccccccccccc);", 3179 getGoogleStyle()); 3180 3181 // 3) break after (. 3182 verifyFormat( 3183 "Aaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbbbbbb(\n" 3184 " Cccccccccccccccccccccccccccccc cccccccccccccccccccccccccccccccc);", 3185 getGoogleStyle()); 3186 3187 // 4) break before after nested name specifiers. 3188 verifyFormat( 3189 "Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3190 " SomeClasssssssssssssssssssssssssssssssssssssss::\n" 3191 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(Cccccccccccccc cccccccccc);", 3192 getGoogleStyle()); 3193 3194 // However, there are exceptions, if a sufficient amount of lines can be 3195 // saved. 3196 // FIXME: The precise cut-offs wrt. the number of saved lines might need some 3197 // more adjusting. 3198 verifyFormat("Aaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbb(Cccccccccccccc cccccccccc,\n" 3199 " Cccccccccccccc cccccccccc,\n" 3200 " Cccccccccccccc cccccccccc,\n" 3201 " Cccccccccccccc cccccccccc,\n" 3202 " Cccccccccccccc cccccccccc);"); 3203 verifyFormat( 3204 "Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3205 " bbbbbbbbbbb(Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n" 3206 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n" 3207 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc);", 3208 getGoogleStyle()); 3209 verifyFormat( 3210 "Aaaaaaaaaa bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(Cccccccccccccc cccccccccc,\n" 3211 " Cccccccccccccc cccccccccc,\n" 3212 " Cccccccccccccc cccccccccc,\n" 3213 " Cccccccccccccc cccccccccc,\n" 3214 " Cccccccccccccc cccccccccc,\n" 3215 " Cccccccccccccc cccccccccc,\n" 3216 " Cccccccccccccc cccccccccc);"); 3217 verifyFormat("Aaaaaaaaaa bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(\n" 3218 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n" 3219 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n" 3220 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc,\n" 3221 " Cccccccccccccc cccccccccc, Cccccccccccccc cccccccccc);"); 3222 3223 // Break after multi-line parameters. 3224 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3225 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3226 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3227 " bbbb bbbb);"); 3228 3229 // Treat overloaded operators like other functions. 3230 verifyFormat("SomeLoooooooooooooooooooooooooogType\n" 3231 "operator>(const SomeLoooooooooooooooooooooooooogType &other);"); 3232 verifyFormat("SomeLoooooooooooooooooooooooooogType\n" 3233 "operator>>(const SomeLooooooooooooooooooooooooogType &other);"); 3234 verifyFormat("SomeLoooooooooooooooooooooooooogType\n" 3235 "operator<<(const SomeLooooooooooooooooooooooooogType &other);"); 3236 verifyGoogleFormat( 3237 "SomeLoooooooooooooooooooooooooooooogType operator>>(\n" 3238 " const SomeLooooooooogType &a, const SomeLooooooooogType &b);"); 3239 verifyGoogleFormat( 3240 "SomeLoooooooooooooooooooooooooooooogType operator<<(\n" 3241 " const SomeLooooooooogType &a, const SomeLooooooooogType &b);"); 3242 verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3243 " int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa = 1);"); 3244 verifyFormat("aaaaaaaaaaaaaaaaaaaaaa\n" 3245 "aaaaaaaaaaaaaaaaaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaa = 1);"); 3246 } 3247 3248 TEST_F(FormatTest, TrailingReturnType) { 3249 verifyFormat("auto foo() -> int;\n"); 3250 verifyFormat("struct S {\n" 3251 " auto bar() const -> int;\n" 3252 "};"); 3253 verifyFormat("template <size_t Order, typename T>\n" 3254 "auto load_img(const std::string &filename)\n" 3255 " -> alias::tensor<Order, T, mem::tag::cpu> {}"); 3256 3257 // Not trailing return types. 3258 verifyFormat("void f() { auto a = b->c(); }"); 3259 } 3260 3261 TEST_F(FormatTest, BreaksFunctionDeclarationsWithTrailingTokens) { 3262 // Avoid breaking before trailing 'const' or other trailing annotations, if 3263 // they are not function-like. 3264 FormatStyle Style = getGoogleStyle(); 3265 Style.ColumnLimit = 47; 3266 verifyFormat("void\n" 3267 "someLongFunction(int someLongParameter) const {\n}", 3268 getLLVMStyleWithColumns(47)); 3269 verifyFormat("LoooooongReturnType\n" 3270 "someLoooooooongFunction() const {}", 3271 getLLVMStyleWithColumns(47)); 3272 verifyFormat("LoooooongReturnType someLoooooooongFunction()\n" 3273 " const {}", 3274 Style); 3275 verifyFormat("void SomeFunction(aaaaa aaaaaaaaaaaaaaaaaaaa,\n" 3276 " aaaaa aaaaaaaaaaaaaaaaaaaa) OVERRIDE;"); 3277 verifyFormat("void SomeFunction(aaaaa aaaaaaaaaaaaaaaaaaaa,\n" 3278 " aaaaa aaaaaaaaaaaaaaaaaaaa) OVERRIDE FINAL;"); 3279 verifyFormat("void SomeFunction(aaaaa aaaaaaaaaaaaaaaaaaaa,\n" 3280 " aaaaa aaaaaaaaaaaaaaaaaaaa) override final;"); 3281 verifyFormat("virtual void aaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaa aaaa,\n" 3282 " aaaaaaaaaaa aaaaa) const override;"); 3283 verifyGoogleFormat( 3284 "virtual void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 3285 " const override;"); 3286 3287 // Even if the first parameter has to be wrapped. 3288 verifyFormat("void someLongFunction(\n" 3289 " int someLongParameter) const {}", 3290 getLLVMStyleWithColumns(46)); 3291 verifyFormat("void someLongFunction(\n" 3292 " int someLongParameter) const {}", 3293 Style); 3294 verifyFormat("void someLongFunction(\n" 3295 " int someLongParameter) override {}", 3296 Style); 3297 verifyFormat("void someLongFunction(\n" 3298 " int someLongParameter) OVERRIDE {}", 3299 Style); 3300 verifyFormat("void someLongFunction(\n" 3301 " int someLongParameter) final {}", 3302 Style); 3303 verifyFormat("void someLongFunction(\n" 3304 " int someLongParameter) FINAL {}", 3305 Style); 3306 verifyFormat("void someLongFunction(\n" 3307 " int parameter) const override {}", 3308 Style); 3309 3310 // Unless these are unknown annotations. 3311 verifyFormat("void SomeFunction(aaaaaaaaaa aaaaaaaaaaaaaaa,\n" 3312 " aaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 3313 " LONG_AND_UGLY_ANNOTATION;"); 3314 3315 // Breaking before function-like trailing annotations is fine to keep them 3316 // close to their arguments. 3317 verifyFormat("void aaaaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 3318 " LOCKS_EXCLUDED(aaaaaaaaaaaaa);"); 3319 verifyFormat("void aaaaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) const\n" 3320 " LOCKS_EXCLUDED(aaaaaaaaaaaaa);"); 3321 verifyFormat("void aaaaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) const\n" 3322 " LOCKS_EXCLUDED(aaaaaaaaaaaaa) {}"); 3323 verifyGoogleFormat("void aaaaaaaaaaaaaa(aaaaaaaa aaa) override\n" 3324 " AAAAAAAAAAAAAAAAAAAAAAAA(aaaaaaaaaaaaaaa);"); 3325 3326 verifyFormat( 3327 "void aaaaaaaaaaaaaaaaaa()\n" 3328 " __attribute__((aaaaaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaa,\n" 3329 " aaaaaaaaaaaaaaaaaaaaaaaaa));"); 3330 verifyFormat("bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3331 " __attribute__((unused));"); 3332 verifyGoogleFormat( 3333 "bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3334 " GUARDED_BY(aaaaaaaaaaaa);"); 3335 verifyGoogleFormat( 3336 "bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3337 " GUARDED_BY(aaaaaaaaaaaa);"); 3338 verifyGoogleFormat( 3339 "bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa GUARDED_BY(aaaaaaaaaaaa) =\n" 3340 " aaaaaaaa::aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 3341 } 3342 3343 TEST_F(FormatTest, BreaksDesireably) { 3344 verifyFormat("if (aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaa) ||\n" 3345 " aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaa) ||\n" 3346 " aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaa)) {\n}"); 3347 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3348 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)) {\n" 3349 "}"); 3350 3351 verifyFormat( 3352 "aaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3353 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}"); 3354 3355 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3356 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3357 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa));"); 3358 3359 verifyFormat( 3360 "aaaaaaaa(aaaaaaaaaaaaa, aaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3361 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)),\n" 3362 " aaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3363 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)));"); 3364 3365 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 3366 " (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 3367 3368 verifyFormat( 3369 "void f() {\n" 3370 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa &&\n" 3371 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);\n" 3372 "}"); 3373 verifyFormat( 3374 "aaaaaa(new Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3375 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaa));"); 3376 verifyFormat( 3377 "aaaaaa(aaa, new Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3378 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaa));"); 3379 verifyFormat( 3380 "aaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3381 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3382 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 3383 3384 // Indent consistently independent of call expression. 3385 verifyFormat("aaaaaaaaaaa(bbbbbbbbbbbbbbbbbbbbbbbbb.ccccccccccccccccc(\n" 3386 " dddddddddddddddddddddddddddddd));\n" 3387 "aaaaaaaaaaa(bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(\n" 3388 " dddddddddddddddddddddddddddddd));"); 3389 3390 // This test case breaks on an incorrect memoization, i.e. an optimization not 3391 // taking into account the StopAt value. 3392 verifyFormat( 3393 "return aaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaa ||\n" 3394 " aaaaaaaaaaa(aaaaaaaaa) || aaaaaaaaaaaaaaaaaaaaaaa ||\n" 3395 " aaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaa ||\n" 3396 " (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 3397 3398 verifyFormat("{\n {\n {\n" 3399 " Annotation.SpaceRequiredBefore =\n" 3400 " Line.Tokens[i - 1].Tok.isNot(tok::l_paren) &&\n" 3401 " Line.Tokens[i - 1].Tok.isNot(tok::l_square);\n" 3402 " }\n }\n}"); 3403 3404 // Break on an outer level if there was a break on an inner level. 3405 EXPECT_EQ("f(g(h(a, // comment\n" 3406 " b, c),\n" 3407 " d, e),\n" 3408 " x, y);", 3409 format("f(g(h(a, // comment\n" 3410 " b, c), d, e), x, y);")); 3411 3412 // Prefer breaking similar line breaks. 3413 verifyFormat( 3414 "const int kTrackingOptions = NSTrackingMouseMoved |\n" 3415 " NSTrackingMouseEnteredAndExited |\n" 3416 " NSTrackingActiveAlways;"); 3417 } 3418 3419 TEST_F(FormatTest, FormatsOneParameterPerLineIfNecessary) { 3420 FormatStyle NoBinPacking = getGoogleStyle(); 3421 NoBinPacking.BinPackParameters = false; 3422 verifyFormat("f(aaaaaaaaaaaaaaaaaaaa,\n" 3423 " aaaaaaaaaaaaaaaaaaaa,\n" 3424 " aaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaa);", 3425 NoBinPacking); 3426 verifyFormat("aaaaaaa(aaaaaaaaaaaaa,\n" 3427 " aaaaaaaaaaaaa,\n" 3428 " aaaaaaaaaaaaa(aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaa));", 3429 NoBinPacking); 3430 verifyFormat( 3431 "aaaaaaaa(aaaaaaaaaaaaa,\n" 3432 " aaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3433 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)),\n" 3434 " aaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3435 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)));", 3436 NoBinPacking); 3437 verifyFormat("aaaaaaaaaaaaaaa(aaaaaaaaa, aaaaaaaaa, aaaaaaaaaaaaaaaaaaaaa)\n" 3438 " .aaaaaaaaaaaaaaaaaa();", 3439 NoBinPacking); 3440 verifyFormat("void f() {\n" 3441 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3442 " aaaaaaaaaa, aaaaaaaaaa, aaaaaaaaaa, aaaaaaaaaaa);\n" 3443 "}", 3444 NoBinPacking); 3445 3446 verifyFormat( 3447 "aaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3448 " aaaaaaaaaaaa,\n" 3449 " aaaaaaaaaaaa);", 3450 NoBinPacking); 3451 verifyFormat( 3452 "somefunction(someotherFunction(ddddddddddddddddddddddddddddddddddd,\n" 3453 " ddddddddddddddddddddddddddddd),\n" 3454 " test);", 3455 NoBinPacking); 3456 3457 verifyFormat("std::vector<aaaaaaaaaaaaaaaaaaaaaaa,\n" 3458 " aaaaaaaaaaaaaaaaaaaaaaa,\n" 3459 " aaaaaaaaaaaaaaaaaaaaaaa> aaaaaaaaaaaaaaaaaa;", 3460 NoBinPacking); 3461 verifyFormat("a(\"a\"\n" 3462 " \"a\",\n" 3463 " a);"); 3464 3465 NoBinPacking.AllowAllParametersOfDeclarationOnNextLine = false; 3466 verifyFormat("void aaaaaaaaaa(aaaaaaaaa,\n" 3467 " aaaaaaaaa,\n" 3468 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 3469 NoBinPacking); 3470 verifyFormat( 3471 "void f() {\n" 3472 " aaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaa, aaaaaaaaa, aaaaaaaaaaaaaaaaaaaaa)\n" 3473 " .aaaaaaa();\n" 3474 "}", 3475 NoBinPacking); 3476 verifyFormat( 3477 "template <class SomeType, class SomeOtherType>\n" 3478 "SomeType SomeFunction(SomeType Type, SomeOtherType OtherType) {}", 3479 NoBinPacking); 3480 } 3481 3482 TEST_F(FormatTest, AdaptiveOnePerLineFormatting) { 3483 FormatStyle Style = getLLVMStyleWithColumns(15); 3484 Style.ExperimentalAutoDetectBinPacking = true; 3485 EXPECT_EQ("aaa(aaaa,\n" 3486 " aaaa,\n" 3487 " aaaa);\n" 3488 "aaa(aaaa,\n" 3489 " aaaa,\n" 3490 " aaaa);", 3491 format("aaa(aaaa,\n" // one-per-line 3492 " aaaa,\n" 3493 " aaaa );\n" 3494 "aaa(aaaa, aaaa, aaaa);", // inconclusive 3495 Style)); 3496 EXPECT_EQ("aaa(aaaa, aaaa,\n" 3497 " aaaa);\n" 3498 "aaa(aaaa, aaaa,\n" 3499 " aaaa);", 3500 format("aaa(aaaa, aaaa,\n" // bin-packed 3501 " aaaa );\n" 3502 "aaa(aaaa, aaaa, aaaa);", // inconclusive 3503 Style)); 3504 } 3505 3506 TEST_F(FormatTest, FormatsBuilderPattern) { 3507 verifyFormat( 3508 "return llvm::StringSwitch<Reference::Kind>(name)\n" 3509 " .StartsWith(\".eh_frame_hdr\", ORDER_EH_FRAMEHDR)\n" 3510 " .StartsWith(\".eh_frame\", ORDER_EH_FRAME)\n" 3511 " .StartsWith(\".init\", ORDER_INIT)\n" 3512 " .StartsWith(\".fini\", ORDER_FINI)\n" 3513 " .StartsWith(\".hash\", ORDER_HASH)\n" 3514 " .Default(ORDER_TEXT);\n"); 3515 3516 verifyFormat("return aaaaaaaaaaaaaaaaa->aaaaa().aaaaaaaaaaaaa().aaaaaa() <\n" 3517 " aaaaaaaaaaaaaaa->aaaaa().aaaaaaaaaaaaa().aaaaaa();"); 3518 verifyFormat( 3519 "aaaaaaa->aaaaaaa->aaaaaaaaaaaaaaaa(\n" 3520 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 3521 " ->aaaaaaaa(aaaaaaaaaaaaaaa);"); 3522 verifyFormat( 3523 "aaaaaaaaaaaaaaaaaaa()->aaaaaa(bbbbb)->aaaaaaaaaaaaaaaaaaa( // break\n" 3524 " aaaaaaaaaaaaaa);"); 3525 verifyFormat( 3526 "aaaaaaaaaaaaaaaaaaaaaaa *aaaaaaaaa =\n" 3527 " aaaaaa->aaaaaaaaaaaa()\n" 3528 " ->aaaaaaaaaaaaaaaa(\n" 3529 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 3530 " ->aaaaaaaaaaaaaaaaa();"); 3531 verifyGoogleFormat( 3532 "void f() {\n" 3533 " someo->Add((new util::filetools::Handler(dir))\n" 3534 " ->OnEvent1(NewPermanentCallback(\n" 3535 " this, &HandlerHolderClass::EventHandlerCBA))\n" 3536 " ->OnEvent2(NewPermanentCallback(\n" 3537 " this, &HandlerHolderClass::EventHandlerCBB))\n" 3538 " ->OnEvent3(NewPermanentCallback(\n" 3539 " this, &HandlerHolderClass::EventHandlerCBC))\n" 3540 " ->OnEvent5(NewPermanentCallback(\n" 3541 " this, &HandlerHolderClass::EventHandlerCBD))\n" 3542 " ->OnEvent6(NewPermanentCallback(\n" 3543 " this, &HandlerHolderClass::EventHandlerCBE)));\n" 3544 "}"); 3545 3546 verifyFormat( 3547 "aaaaaaaaaaa().aaaaaaaaaaa().aaaaaaaaaaa().aaaaaaaaaaa().aaaaaaaaaaa();"); 3548 verifyFormat("aaaaaaaaaaaaaaa()\n" 3549 " .aaaaaaaaaaaaaaa()\n" 3550 " .aaaaaaaaaaaaaaa()\n" 3551 " .aaaaaaaaaaaaaaa()\n" 3552 " .aaaaaaaaaaaaaaa();"); 3553 verifyFormat("aaaaaaaaaaaaaaa.aaaaaaaaaaaaaaa()\n" 3554 " .aaaaaaaaaaaaaaa()\n" 3555 " .aaaaaaaaaaaaaaa()\n" 3556 " .aaaaaaaaaaaaaaa();"); 3557 verifyFormat("aaaaaaaaaaaaaaa.aaaaaaaaaaaaaaa()\n" 3558 " .aaaaaaaaaaaaaaa.aaaaaaaaaaaaaaa()\n" 3559 " .aaaaaaaaaaaaaaa();"); 3560 verifyFormat("aaaaaaaaaaaaa->aaaaaaaaaaaaaaaaaaaaaaaa()\n" 3561 " ->aaaaaaaaaaaaaae(0)\n" 3562 " ->aaaaaaaaaaaaaaa();"); 3563 3564 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaa.aaaaaaaaaaaaa()\n" 3565 " .aaaaaaaaaaaaaaaaaaaaaaaaaa()\n" 3566 " .has<bbbbbbbbbbbbbbbbbbbbb>();"); 3567 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaa.aaaaaaaaaaaaa()\n" 3568 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa<\n" 3569 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>();"); 3570 3571 // Prefer not to break after empty parentheses. 3572 verifyFormat("FirstToken->WhitespaceRange.getBegin().getLocWithOffset(\n" 3573 " First->LastNewlineOffset);"); 3574 } 3575 3576 TEST_F(FormatTest, BreaksAccordingToOperatorPrecedence) { 3577 verifyFormat( 3578 "if (aaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 3579 " bbbbbbbbbbbbbbbbbbbbbbbbb && ccccccccccccccccccccccccc) {\n}"); 3580 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaa && bbbbbbbbbbbbbbbbbbbbbbbbb ||\n" 3581 " ccccccccccccccccccccccccc) {\n}"); 3582 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaa || bbbbbbbbbbbbbbbbbbbbbbbbb ||\n" 3583 " ccccccccccccccccccccccccc) {\n}"); 3584 verifyFormat( 3585 "if ((aaaaaaaaaaaaaaaaaaaaaaaaa || bbbbbbbbbbbbbbbbbbbbbbbbb) &&\n" 3586 " ccccccccccccccccccccccccc) {\n}"); 3587 verifyFormat("return aaaa & AAAAAAAAAAAAAAAAAAAAAAAAAAAAA ||\n" 3588 " bbbb & BBBBBBBBBBBBBBBBBBBBBBBBBBBBB ||\n" 3589 " cccc & CCCCCCCCCCCCCCCCCCCCCCCCCC ||\n" 3590 " dddd & DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD;"); 3591 verifyFormat("if ((aaaaaaaaaa != aaaaaaaaaaaaaaa ||\n" 3592 " aaaaaaaaaaaaaaaaaaaaaaaa() >= aaaaaaaaaaaaaaaaaaaa) &&\n" 3593 " aaaaaaaaaaaaaaa != aa) {\n}"); 3594 } 3595 3596 TEST_F(FormatTest, BreaksAfterAssignments) { 3597 verifyFormat( 3598 "unsigned Cost =\n" 3599 " TTI.getMemoryOpCost(I->getOpcode(), VectorTy, SI->getAlignment(),\n" 3600 " SI->getPointerAddressSpaceee());\n"); 3601 verifyFormat( 3602 "CharSourceRange LineRange = CharSourceRange::getTokenRange(\n" 3603 " Line.Tokens.front().Tok.getLo(), Line.Tokens.back().Tok.getLoc());"); 3604 3605 verifyFormat( 3606 "aaaaaaaaaaaaaaaaaaaaaaaaaa aaaa = aaaaaaaaaaaaaa(0).aaaa().aaaaaaaaa(\n" 3607 " aaaaaaaaaaaaaaaaaaa::aaaaaaaaaaaaaaaaaaaaa);"); 3608 verifyFormat("unsigned OriginalStartColumn =\n" 3609 " SourceMgr.getSpellingColumnNumber(\n" 3610 " Current.FormatTok.getStartOfNonWhitespace()) -\n" 3611 " 1;"); 3612 } 3613 3614 TEST_F(FormatTest, AlignsAfterAssignments) { 3615 verifyFormat( 3616 "int Result = aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3617 " aaaaaaaaaaaaaaaaaaaaaaaaa;"); 3618 verifyFormat( 3619 "Result += aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3620 " aaaaaaaaaaaaaaaaaaaaaaaaa;"); 3621 verifyFormat( 3622 "Result >>= aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3623 " aaaaaaaaaaaaaaaaaaaaaaaaa;"); 3624 verifyFormat( 3625 "int Result = (aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3626 " aaaaaaaaaaaaaaaaaaaaaaaaa);"); 3627 verifyFormat( 3628 "double LooooooooooooooooooooooooongResult = aaaaaaaaaaaaaaaaaaaaaaaa +\n" 3629 " aaaaaaaaaaaaaaaaaaaaaaaa +\n" 3630 " aaaaaaaaaaaaaaaaaaaaaaaa;"); 3631 } 3632 3633 TEST_F(FormatTest, AlignsAfterReturn) { 3634 verifyFormat( 3635 "return aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3636 " aaaaaaaaaaaaaaaaaaaaaaaaa;"); 3637 verifyFormat( 3638 "return (aaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3639 " aaaaaaaaaaaaaaaaaaaaaaaaa);"); 3640 verifyFormat( 3641 "return aaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa >=\n" 3642 " aaaaaaaaaaaaaaaaaaaaaa();"); 3643 verifyFormat( 3644 "return (aaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa >=\n" 3645 " aaaaaaaaaaaaaaaaaaaaaa());"); 3646 verifyFormat("return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3647 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 3648 verifyFormat("return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3649 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) &&\n" 3650 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 3651 verifyFormat("return\n" 3652 " // true if code is one of a or b.\n" 3653 " code == a || code == b;"); 3654 } 3655 3656 TEST_F(FormatTest, BreaksConditionalExpressions) { 3657 verifyFormat( 3658 "aaaa(aaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3659 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3660 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 3661 verifyFormat( 3662 "aaaa(aaaaaaaaaaaaaaaaaaaa, aaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3663 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 3664 verifyFormat( 3665 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaa ? aaaa(aaaaaa)\n" 3666 " : aaaaaaaaaaaaa);"); 3667 verifyFormat( 3668 "aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3669 " aaaaaaaaaaaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3670 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3671 " aaaaaaaaaaaaa);"); 3672 verifyFormat( 3673 "aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3674 " aaaaaaaaaaaaaaaa ?: aaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3675 " aaaaaaaaaaaaa);"); 3676 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3677 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3678 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 3679 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3680 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 3681 verifyFormat("aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3682 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3683 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3684 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 3685 " : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3686 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 3687 " aaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 3688 verifyFormat("aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3689 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3690 " ?: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3691 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 3692 " aaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 3693 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3694 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3695 " : aaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 3696 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaa =\n" 3697 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3698 " ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3699 " : aaaaaaaaaaaaaaaa;"); 3700 verifyFormat( 3701 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3702 " ? aaaaaaaaaaaaaaa\n" 3703 " : aaaaaaaaaaaaaaa;"); 3704 verifyFormat("f(aaaaaaaaaaaaaaaa == // force break\n" 3705 " aaaaaaaaa\n" 3706 " ? b\n" 3707 " : c);"); 3708 verifyFormat( 3709 "unsigned Indent =\n" 3710 " format(TheLine.First, IndentForLevel[TheLine.Level] >= 0\n" 3711 " ? IndentForLevel[TheLine.Level]\n" 3712 " : TheLine * 2,\n" 3713 " TheLine.InPPDirective, PreviousEndOfLineColumn);", 3714 getLLVMStyleWithColumns(70)); 3715 verifyFormat("bool aaaaaa = aaaaaaaaaaaaa //\n" 3716 " ? aaaaaaaaaaaaaaa\n" 3717 " : bbbbbbbbbbbbbbb //\n" 3718 " ? ccccccccccccccc\n" 3719 " : ddddddddddddddd;"); 3720 verifyFormat("bool aaaaaa = aaaaaaaaaaaaa //\n" 3721 " ? aaaaaaaaaaaaaaa\n" 3722 " : (bbbbbbbbbbbbbbb //\n" 3723 " ? ccccccccccccccc\n" 3724 " : ddddddddddddddd);"); 3725 verifyFormat( 3726 "int aaaaaaaaaaaaaaaaaaaaaaaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3727 " ? aaaaaaaaaaaaaaaaaaaaaaaaa +\n" 3728 " aaaaaaaaaaaaaaaaaaaaa +\n" 3729 " aaaaaaaaaaaaaaaaaaaaa\n" 3730 " : aaaaaaaaaa;"); 3731 3732 FormatStyle NoBinPacking = getLLVMStyle(); 3733 NoBinPacking.BinPackParameters = false; 3734 verifyFormat( 3735 "void f() {\n" 3736 " g(aaa,\n" 3737 " aaaaaaaaaa == aaaaaaaaaa ? aaaa : aaaaa,\n" 3738 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3739 " ? aaaaaaaaaaaaaaa\n" 3740 " : aaaaaaaaaaaaaaa);\n" 3741 "}", 3742 NoBinPacking); 3743 verifyFormat( 3744 "void f() {\n" 3745 " g(aaa,\n" 3746 " aaaaaaaaaa == aaaaaaaaaa ? aaaa : aaaaa,\n" 3747 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3748 " ?: aaaaaaaaaaaaaaa);\n" 3749 "}", 3750 NoBinPacking); 3751 } 3752 3753 TEST_F(FormatTest, BreaksConditionalExpressionsAfterOperator) { 3754 FormatStyle Style = getLLVMStyle(); 3755 Style.BreakBeforeTernaryOperators = false; 3756 Style.ColumnLimit = 70; 3757 verifyFormat( 3758 "aaaa(aaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 3759 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 3760 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 3761 Style); 3762 verifyFormat( 3763 "aaaa(aaaaaaaaaaaaaaaaaaaa, aaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 3764 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 3765 Style); 3766 verifyFormat( 3767 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaa ? aaaa(aaaaaa) :\n" 3768 " aaaaaaaaaaaaa);", 3769 Style); 3770 verifyFormat( 3771 "aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3772 " aaaaaaaaaaaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 3773 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3774 " aaaaaaaaaaaaa);", 3775 Style); 3776 verifyFormat( 3777 "aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3778 " aaaaaaaaaaaaaaaa ?: aaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3779 " aaaaaaaaaaaaa);", 3780 Style); 3781 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 3782 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3783 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) :\n" 3784 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3785 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 3786 Style); 3787 verifyFormat("aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3788 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 3789 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3790 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) :\n" 3791 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3792 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 3793 " aaaaaaaaaaaaaaaaaaaaaaaaaaa);", 3794 Style); 3795 verifyFormat("aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 3796 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?:\n" 3797 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 3798 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n" 3799 " aaaaaaaaaaaaaaaaaaaaaaaaaaa);", 3800 Style); 3801 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 3802 " aaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 3803 " aaaaaaaaaaaaaaaaaaaaaaaaaaa;", 3804 Style); 3805 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaa =\n" 3806 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 3807 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :\n" 3808 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;", 3809 Style); 3810 verifyFormat( 3811 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?\n" 3812 " aaaaaaaaaaaaaaa :\n" 3813 " aaaaaaaaaaaaaaa;", 3814 Style); 3815 verifyFormat("f(aaaaaaaaaaaaaaaa == // force break\n" 3816 " aaaaaaaaa ?\n" 3817 " b :\n" 3818 " c);", 3819 Style); 3820 verifyFormat( 3821 "unsigned Indent =\n" 3822 " format(TheLine.First, IndentForLevel[TheLine.Level] >= 0 ?\n" 3823 " IndentForLevel[TheLine.Level] :\n" 3824 " TheLine * 2,\n" 3825 " TheLine.InPPDirective, PreviousEndOfLineColumn);", 3826 Style); 3827 verifyFormat("bool aaaaaa = aaaaaaaaaaaaa ? //\n" 3828 " aaaaaaaaaaaaaaa :\n" 3829 " bbbbbbbbbbbbbbb ? //\n" 3830 " ccccccccccccccc :\n" 3831 " ddddddddddddddd;", 3832 Style); 3833 verifyFormat("bool aaaaaa = aaaaaaaaaaaaa ? //\n" 3834 " aaaaaaaaaaaaaaa :\n" 3835 " (bbbbbbbbbbbbbbb ? //\n" 3836 " ccccccccccccccc :\n" 3837 " ddddddddddddddd);", 3838 Style); 3839 } 3840 3841 TEST_F(FormatTest, DeclarationsOfMultipleVariables) { 3842 verifyFormat("bool aaaaaaaaaaaaaaaaa = aaaaaa->aaaaaaaaaaaaaaaaa(),\n" 3843 " aaaaaaaaaaa = aaaaaa->aaaaaaaaaaa();"); 3844 verifyFormat("bool a = true, b = false;"); 3845 3846 verifyFormat("bool aaaaaaaaaaaaaaaaaaaaaaaaa =\n" 3847 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaa),\n" 3848 " bbbbbbbbbbbbbbbbbbbbbbbbb =\n" 3849 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(bbbbbbbbbbbbbbbb);"); 3850 verifyFormat( 3851 "bool aaaaaaaaaaaaaaaaaaaaa =\n" 3852 " bbbbbbbbbbbbbbbbbbbbbbbbbbbb && cccccccccccccccccccccccccccc,\n" 3853 " d = e && f;"); 3854 verifyFormat("aaaaaaaaa a = aaaaaaaaaaaaaaaaaaaa, b = bbbbbbbbbbbbbbbbbbbb,\n" 3855 " c = cccccccccccccccccccc, d = dddddddddddddddddddd;"); 3856 verifyFormat("aaaaaaaaa *a = aaaaaaaaaaaaaaaaaaa, *b = bbbbbbbbbbbbbbbbbbb,\n" 3857 " *c = ccccccccccccccccccc, *d = ddddddddddddddddddd;"); 3858 verifyFormat("aaaaaaaaa ***a = aaaaaaaaaaaaaaaaaaa, ***b = bbbbbbbbbbbbbbb,\n" 3859 " ***c = ccccccccccccccccccc, ***d = ddddddddddddddd;"); 3860 // FIXME: If multiple variables are defined, the "*" needs to move to the new 3861 // line. Also fix indent for breaking after the type, this looks bad. 3862 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa*\n" 3863 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaa = aaaaaaaaaaaaaaaaaaa,\n" 3864 " *b = bbbbbbbbbbbbbbbbbbb;", 3865 getGoogleStyle()); 3866 3867 // Not ideal, but pointer-with-type does not allow much here. 3868 verifyGoogleFormat( 3869 "aaaaaaaaa* a = aaaaaaaaaaaaaaaaaaa, *b = bbbbbbbbbbbbbbbbbbb,\n" 3870 " *b = bbbbbbbbbbbbbbbbbbb, *d = ddddddddddddddddddd;"); 3871 } 3872 3873 TEST_F(FormatTest, ConditionalExpressionsInBrackets) { 3874 verifyFormat("arr[foo ? bar : baz];"); 3875 verifyFormat("f()[foo ? bar : baz];"); 3876 verifyFormat("(a + b)[foo ? bar : baz];"); 3877 verifyFormat("arr[foo ? (4 > 5 ? 4 : 5) : 5 < 5 ? 5 : 7];"); 3878 } 3879 3880 TEST_F(FormatTest, AlignsStringLiterals) { 3881 verifyFormat("loooooooooooooooooooooooooongFunction(\"short literal \"\n" 3882 " \"short literal\");"); 3883 verifyFormat( 3884 "looooooooooooooooooooooooongFunction(\n" 3885 " \"short literal\"\n" 3886 " \"looooooooooooooooooooooooooooooooooooooooooooooooong literal\");"); 3887 verifyFormat("someFunction(\"Always break between multi-line\"\n" 3888 " \" string literals\",\n" 3889 " and, other, parameters);"); 3890 EXPECT_EQ("fun + \"1243\" /* comment */\n" 3891 " \"5678\";", 3892 format("fun + \"1243\" /* comment */\n" 3893 " \"5678\";", 3894 getLLVMStyleWithColumns(28))); 3895 EXPECT_EQ( 3896 "aaaaaa = \"aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaa \"\n" 3897 " \"aaaaaaaaaaaaaaaaaaaaa\"\n" 3898 " \"aaaaaaaaaaaaaaaa\";", 3899 format("aaaaaa =" 3900 "\"aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaa " 3901 "aaaaaaaaaaaaaaaaaaaaa\" " 3902 "\"aaaaaaaaaaaaaaaa\";")); 3903 verifyFormat("a = a + \"a\"\n" 3904 " \"a\"\n" 3905 " \"a\";"); 3906 verifyFormat("f(\"a\", \"b\"\n" 3907 " \"c\");"); 3908 3909 verifyFormat( 3910 "#define LL_FORMAT \"ll\"\n" 3911 "printf(\"aaaaa: %d, bbbbbb: %\" LL_FORMAT \"d, cccccccc: %\" LL_FORMAT\n" 3912 " \"d, ddddddddd: %\" LL_FORMAT \"d\");"); 3913 3914 verifyFormat("#define A(X) \\\n" 3915 " \"aaaaa\" #X \"bbbbbb\" \\\n" 3916 " \"ccccc\"", 3917 getLLVMStyleWithColumns(23)); 3918 verifyFormat("#define A \"def\"\n" 3919 "f(\"abc\" A \"ghi\"\n" 3920 " \"jkl\");"); 3921 3922 verifyFormat("f(L\"a\"\n" 3923 " L\"b\")"); 3924 verifyFormat("#define A(X) \\\n" 3925 " L\"aaaaa\" #X L\"bbbbbb\" \\\n" 3926 " L\"ccccc\"", 3927 getLLVMStyleWithColumns(25)); 3928 } 3929 3930 TEST_F(FormatTest, AlwaysBreakBeforeMultilineStrings) { 3931 FormatStyle NoBreak = getLLVMStyle(); 3932 NoBreak.AlwaysBreakBeforeMultilineStrings = false; 3933 FormatStyle Break = getLLVMStyle(); 3934 Break.AlwaysBreakBeforeMultilineStrings = true; 3935 verifyFormat("aaaa = \"bbbb\"\n" 3936 " \"cccc\";", 3937 NoBreak); 3938 verifyFormat("aaaa =\n" 3939 " \"bbbb\"\n" 3940 " \"cccc\";", 3941 Break); 3942 verifyFormat("aaaa(\"bbbb\"\n" 3943 " \"cccc\");", 3944 NoBreak); 3945 verifyFormat("aaaa(\n" 3946 " \"bbbb\"\n" 3947 " \"cccc\");", 3948 Break); 3949 verifyFormat("aaaa(qqq, \"bbbb\"\n" 3950 " \"cccc\");", 3951 NoBreak); 3952 verifyFormat("aaaa(qqq,\n" 3953 " \"bbbb\"\n" 3954 " \"cccc\");", 3955 Break); 3956 verifyFormat("aaaa(qqq,\n" 3957 " L\"bbbb\"\n" 3958 " L\"cccc\");", 3959 Break); 3960 3961 // Don't break if there is no column gain. 3962 verifyFormat("f(\"aaaa\"\n" 3963 " \"bbbb\");", 3964 Break); 3965 3966 // Treat literals with escaped newlines like multi-line string literals. 3967 EXPECT_EQ("x = \"a\\\n" 3968 "b\\\n" 3969 "c\";", 3970 format("x = \"a\\\n" 3971 "b\\\n" 3972 "c\";", 3973 NoBreak)); 3974 EXPECT_EQ("x =\n" 3975 " \"a\\\n" 3976 "b\\\n" 3977 "c\";", 3978 format("x = \"a\\\n" 3979 "b\\\n" 3980 "c\";", 3981 Break)); 3982 3983 // Exempt ObjC strings for now. 3984 EXPECT_EQ("NSString *const kString = @\"aaaa\"\n" 3985 " \"bbbb\";", 3986 format("NSString *const kString = @\"aaaa\"\n" 3987 "\"bbbb\";", 3988 Break)); 3989 } 3990 3991 TEST_F(FormatTest, AlignsPipes) { 3992 verifyFormat( 3993 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3994 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 3995 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 3996 verifyFormat( 3997 "aaaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaa\n" 3998 " << aaaaaaaaaaaaaaaaaaaa;"); 3999 verifyFormat( 4000 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4001 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4002 verifyFormat( 4003 "llvm::outs() << \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"\n" 4004 " \"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\"\n" 4005 " << \"ccccccccccccccccccccccccccccccccccccccccccccccccc\";"); 4006 verifyFormat( 4007 "aaaaaaaa << (aaaaaaaaaaaaaaaaaaa << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4008 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4009 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4010 verifyFormat( 4011 "llvm::errs() << \"a: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4012 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4013 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4014 verifyFormat( 4015 "llvm::errs() << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4016 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4017 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4018 " << bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;"); 4019 verifyFormat( 4020 "llvm::errs() << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4021 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4022 4023 verifyFormat("return out << \"somepacket = {\\n\"\n" 4024 " << \" aaaaaa = \" << pkt.aaaaaa << \"\\n\"\n" 4025 " << \" bbbb = \" << pkt.bbbb << \"\\n\"\n" 4026 " << \" cccccc = \" << pkt.cccccc << \"\\n\"\n" 4027 " << \" ddd = [\" << pkt.ddd << \"]\\n\"\n" 4028 " << \"}\";"); 4029 4030 verifyFormat("llvm::outs() << \"aaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaa\n" 4031 " << \"aaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaa\n" 4032 " << \"aaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaa;"); 4033 verifyFormat( 4034 "llvm::outs() << \"aaaaaaaaaaaaaaaaa = \" << aaaaaaaaaaaaaaaaa\n" 4035 " << \"bbbbbbbbbbbbbbbbb = \" << bbbbbbbbbbbbbbbbb\n" 4036 " << \"ccccccccccccccccc = \" << ccccccccccccccccc\n" 4037 " << \"ddddddddddddddddd = \" << ddddddddddddddddd\n" 4038 " << \"eeeeeeeeeeeeeeeee = \" << eeeeeeeeeeeeeeeee;"); 4039 verifyFormat("llvm::outs() << aaaaaaaaaaaaaaaaaaaaaaaa << \"=\"\n" 4040 " << bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;"); 4041 verifyFormat( 4042 "void f() {\n" 4043 " llvm::outs() << \"aaaaaaaaaaaaaaaaaaaa: \"\n" 4044 " << aaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaa);\n" 4045 "}"); 4046 verifyFormat("llvm::outs() << \"aaaaaaaaaaaaaaaa: \"\n" 4047 " << aaaaaaaa.aaaaaaaaaaaa(aaa)->aaaaaaaaaaaaaa();"); 4048 4049 // Breaking before the first "<<" is generally not desirable. 4050 verifyFormat( 4051 "llvm::errs()\n" 4052 " << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4053 " << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4054 " << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4055 " << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa;", 4056 getLLVMStyleWithColumns(70)); 4057 verifyFormat("llvm::errs() << \"aaaaaaaaaaaaaaaaaaa: \"\n" 4058 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4059 " << \"aaaaaaaaaaaaaaaaaaa: \"\n" 4060 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4061 " << \"aaaaaaaaaaaaaaaaaaa: \"\n" 4062 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaa;", 4063 getLLVMStyleWithColumns(70)); 4064 4065 // But sometimes, breaking before the first "<<" is desirable. 4066 verifyFormat("Diag(aaaaaaaaaaaaaaaaaaaa, aaaaaaaa)\n" 4067 " << aaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaa);"); 4068 verifyFormat("Diag(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbb)\n" 4069 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4070 " << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4071 verifyFormat("SemaRef.Diag(Loc, diag::note_for_range_begin_end)\n" 4072 " << BEF << IsTemplate << Description << E->getType();"); 4073 4074 verifyFormat( 4075 "llvm::errs() << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4076 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 4077 4078 // Incomplete string literal. 4079 EXPECT_EQ("llvm::errs() << \"\n" 4080 " << a;", 4081 format("llvm::errs() << \"\n<<a;")); 4082 4083 verifyFormat("void f() {\n" 4084 " CHECK_EQ(aaaa, (*bbbbbbbbb)->cccccc)\n" 4085 " << \"qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq\";\n" 4086 "}"); 4087 } 4088 4089 TEST_F(FormatTest, UnderstandsEquals) { 4090 verifyFormat( 4091 "aaaaaaaaaaaaaaaaa =\n" 4092 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 4093 verifyFormat( 4094 "if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 4095 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}"); 4096 verifyFormat( 4097 "if (a) {\n" 4098 " f();\n" 4099 "} else if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 4100 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n" 4101 "}"); 4102 4103 verifyFormat("if (int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 4104 " 100000000 + 10000000) {\n}"); 4105 } 4106 4107 TEST_F(FormatTest, WrapsAtFunctionCallsIfNecessary) { 4108 verifyFormat("LoooooooooooooooooooooooooooooooooooooongObject\n" 4109 " .looooooooooooooooooooooooooooooooooooooongFunction();"); 4110 4111 verifyFormat("LoooooooooooooooooooooooooooooooooooooongObject\n" 4112 " ->looooooooooooooooooooooooooooooooooooooongFunction();"); 4113 4114 verifyFormat( 4115 "LooooooooooooooooooooooooooooooooongObject->shortFunction(Parameter1,\n" 4116 " Parameter2);"); 4117 4118 verifyFormat( 4119 "ShortObject->shortFunction(\n" 4120 " LooooooooooooooooooooooooooooooooooooooooooooooongParameter1,\n" 4121 " LooooooooooooooooooooooooooooooooooooooooooooooongParameter2);"); 4122 4123 verifyFormat("loooooooooooooongFunction(\n" 4124 " LoooooooooooooongObject->looooooooooooooooongFunction());"); 4125 4126 verifyFormat( 4127 "function(LoooooooooooooooooooooooooooooooooooongObject\n" 4128 " ->loooooooooooooooooooooooooooooooooooooooongFunction());"); 4129 4130 verifyFormat("EXPECT_CALL(SomeObject, SomeFunction(Parameter))\n" 4131 " .WillRepeatedly(Return(SomeValue));"); 4132 verifyFormat("SomeMap[std::pair(aaaaaaaaaaaa, bbbbbbbbbbbbbbb)].insert(\n" 4133 " ccccccccccccccccccccccc);"); 4134 verifyFormat("aaaaa(aaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4135 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa).aaaaa(aaaaa),\n" 4136 " aaaaaaaaaaaaaaaaaaaaa);"); 4137 verifyFormat("void f() {\n" 4138 " aaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4139 " aaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa)->aaaaaaaaa());\n" 4140 "}"); 4141 verifyFormat( 4142 "aaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4143 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4144 " .aaaaaaaaaaaaaaa(aa(aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4145 " aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4146 " aaaaaaaaaaaaaaaaaaaaaaaaaaa));"); 4147 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4148 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4149 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4150 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()) {\n" 4151 "}"); 4152 4153 // Here, it is not necessary to wrap at "." or "->". 4154 verifyFormat("if (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaa) ||\n" 4155 " aaaa.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n}"); 4156 verifyFormat( 4157 "aaaaaaaaaaa->aaaaaaaaa(\n" 4158 " aaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4159 " aaaaaaaaaaaaaaaaaa->aaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa));\n"); 4160 4161 verifyFormat( 4162 "aaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4163 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa().aaaaaaaaaaaaaaaaa());"); 4164 verifyFormat("a->aaaaaa()->aaaaaaaaaaa(aaaaaaaa()->aaaaaa()->aaaaa() *\n" 4165 " aaaaaaaaa()->aaaaaa()->aaaaa());"); 4166 verifyFormat("a->aaaaaa()->aaaaaaaaaaa(aaaaaaaa()->aaaaaa()->aaaaa() ||\n" 4167 " aaaaaaaaa()->aaaaaa()->aaaaa());"); 4168 4169 // FIXME: Should we break before .a()? 4170 verifyFormat("aaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4171 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa).a();"); 4172 4173 FormatStyle NoBinPacking = getLLVMStyle(); 4174 NoBinPacking.BinPackParameters = false; 4175 verifyFormat("aaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaa)\n" 4176 " .aaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaa)\n" 4177 " .aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaa,\n" 4178 " aaaaaaaaaaaaaaaaaaa,\n" 4179 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);", 4180 NoBinPacking); 4181 4182 // If there is a subsequent call, change to hanging indentation. 4183 verifyFormat( 4184 "aaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4185 " aaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa))\n" 4186 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 4187 verifyFormat( 4188 "aaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4189 " aaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa));"); 4190 verifyFormat("aaaaaaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4191 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4192 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 4193 verifyFormat("aaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4194 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 4195 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa());"); 4196 } 4197 4198 TEST_F(FormatTest, WrapsTemplateDeclarations) { 4199 verifyFormat("template <typename T>\n" 4200 "virtual void loooooooooooongFunction(int Param1, int Param2);"); 4201 verifyFormat("template <typename T>\n" 4202 "// T should be one of {A, B}.\n" 4203 "virtual void loooooooooooongFunction(int Param1, int Param2);"); 4204 verifyFormat( 4205 "template <typename T>\n" 4206 "using comment_to_xml_conversion = comment_to_xml_conversion<T, int>;"); 4207 verifyFormat("template <typename T>\n" 4208 "void f(int Paaaaaaaaaaaaaaaaaaaaaaaaaaaaaaram1,\n" 4209 " int Paaaaaaaaaaaaaaaaaaaaaaaaaaaaaaram2);"); 4210 verifyFormat( 4211 "template <typename T>\n" 4212 "void looooooooooooooooooooongFunction(int Paaaaaaaaaaaaaaaaaaaaram1,\n" 4213 " int Paaaaaaaaaaaaaaaaaaaaram2);"); 4214 verifyFormat( 4215 "template <typename T>\n" 4216 "aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaa,\n" 4217 " aaaaaaaaaaaaaaaaaaaaaaaaaa<T>::aaaaaaaaaa,\n" 4218 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4219 verifyFormat("template <typename T>\n" 4220 "void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4221 " int aaaaaaaaaaaaaaaaaaaaaa);"); 4222 verifyFormat( 4223 "template <typename T1, typename T2 = char, typename T3 = char,\n" 4224 " typename T4 = char>\n" 4225 "void f();"); 4226 verifyFormat("template <typename aaaaaaaaaaa, typename bbbbbbbbbbbbb,\n" 4227 " template <typename> class cccccccccccccccccccccc,\n" 4228 " typename ddddddddddddd>\n" 4229 "class C {};"); 4230 verifyFormat( 4231 "aaaaaaaaaaaaaaaaaaaaaaaa<aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa>(\n" 4232 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4233 4234 verifyFormat("void f() {\n" 4235 " a<aaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaa>(\n" 4236 " a(aaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaa));\n" 4237 "}"); 4238 4239 verifyFormat("template <typename T> class C {};"); 4240 verifyFormat("template <typename T> void f();"); 4241 verifyFormat("template <typename T> void f() {}"); 4242 verifyFormat( 4243 "aaaaaaaaaaaaa<aaaaaaaaaa, aaaaaaaaaaa,\n" 4244 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4245 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa> *aaaa =\n" 4246 " new aaaaaaaaaaaaa<aaaaaaaaaa, aaaaaaaaaaa,\n" 4247 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4248 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa>(\n" 4249 " bbbbbbbbbbbbbbbbbbbbbbbb);", 4250 getLLVMStyleWithColumns(72)); 4251 4252 FormatStyle AlwaysBreak = getLLVMStyle(); 4253 AlwaysBreak.AlwaysBreakTemplateDeclarations = true; 4254 verifyFormat("template <typename T>\nclass C {};", AlwaysBreak); 4255 verifyFormat("template <typename T>\nvoid f();", AlwaysBreak); 4256 verifyFormat("template <typename T>\nvoid f() {}", AlwaysBreak); 4257 verifyFormat("void aaaaaaaaaaaaaaaaaaa<aaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4258 " bbbbbbbbbbbbbbbbbbbbbbbbbbbb>(\n" 4259 " ccccccccccccccccccccccccccccccccccccccccccccccc);"); 4260 verifyFormat("template <template <typename> class Fooooooo,\n" 4261 " template <typename> class Baaaaaaar>\n" 4262 "struct C {};", 4263 AlwaysBreak); 4264 verifyFormat("template <typename T> // T can be A, B or C.\n" 4265 "struct C {};", 4266 AlwaysBreak); 4267 } 4268 4269 TEST_F(FormatTest, WrapsAtNestedNameSpecifiers) { 4270 verifyFormat( 4271 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 4272 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 4273 verifyFormat( 4274 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 4275 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4276 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa());"); 4277 4278 // FIXME: Should we have the extra indent after the second break? 4279 verifyFormat( 4280 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 4281 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 4282 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 4283 4284 verifyFormat( 4285 "aaaaaaaaaaaaaaa(bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb::\n" 4286 " cccccccccccccccccccccccccccccccccccccccccccccc());"); 4287 4288 // Breaking at nested name specifiers is generally not desirable. 4289 verifyFormat( 4290 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4291 " aaaaaaaaaaaaaaaaaaaaaaa);"); 4292 4293 verifyFormat( 4294 "aaaaaaaaaaaaaaaaaa(aaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 4295 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4296 " aaaaaaaaaaaaaaaaaaaaa);", 4297 getLLVMStyleWithColumns(74)); 4298 4299 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::\n" 4300 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4301 " .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();"); 4302 } 4303 4304 TEST_F(FormatTest, UnderstandsTemplateParameters) { 4305 verifyFormat("A<int> a;"); 4306 verifyFormat("A<A<A<int>>> a;"); 4307 verifyFormat("A<A<A<int, 2>, 3>, 4> a;"); 4308 verifyFormat("bool x = a < 1 || 2 > a;"); 4309 verifyFormat("bool x = 5 < f<int>();"); 4310 verifyFormat("bool x = f<int>() > 5;"); 4311 verifyFormat("bool x = 5 < a<int>::x;"); 4312 verifyFormat("bool x = a < 4 ? a > 2 : false;"); 4313 verifyFormat("bool x = f() ? a < 2 : a > 2;"); 4314 4315 verifyGoogleFormat("A<A<int>> a;"); 4316 verifyGoogleFormat("A<A<A<int>>> a;"); 4317 verifyGoogleFormat("A<A<A<A<int>>>> a;"); 4318 verifyGoogleFormat("A<A<int> > a;"); 4319 verifyGoogleFormat("A<A<A<int> > > a;"); 4320 verifyGoogleFormat("A<A<A<A<int> > > > a;"); 4321 verifyGoogleFormat("A<::A<int>> a;"); 4322 verifyGoogleFormat("A<::A> a;"); 4323 verifyGoogleFormat("A< ::A> a;"); 4324 verifyGoogleFormat("A< ::A<int> > a;"); 4325 EXPECT_EQ("A<A<A<A>>> a;", format("A<A<A<A> >> a;", getGoogleStyle())); 4326 EXPECT_EQ("A<A<A<A>>> a;", format("A<A<A<A>> > a;", getGoogleStyle())); 4327 EXPECT_EQ("A<::A<int>> a;", format("A< ::A<int>> a;", getGoogleStyle())); 4328 EXPECT_EQ("A<::A<int>> a;", format("A<::A<int> > a;", getGoogleStyle())); 4329 4330 verifyFormat("test >> a >> b;"); 4331 verifyFormat("test << a >> b;"); 4332 4333 verifyFormat("f<int>();"); 4334 verifyFormat("template <typename T> void f() {}"); 4335 4336 // Not template parameters. 4337 verifyFormat("return a < b && c > d;"); 4338 verifyFormat("void f() {\n" 4339 " while (a < b && c > d) {\n" 4340 " }\n" 4341 "}"); 4342 verifyFormat("template <typename... Types>\n" 4343 "typename enable_if<0 < sizeof...(Types)>::type Foo() {}"); 4344 4345 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4346 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaa >> aaaaa);", 4347 getLLVMStyleWithColumns(60)); 4348 } 4349 4350 TEST_F(FormatTest, UnderstandsBinaryOperators) { 4351 verifyFormat("COMPARE(a, ==, b);"); 4352 } 4353 4354 TEST_F(FormatTest, UnderstandsPointersToMembers) { 4355 verifyFormat("int A::*x;"); 4356 verifyFormat("int (S::*func)(void *);"); 4357 verifyFormat("void f() { int (S::*func)(void *); }"); 4358 verifyFormat("typedef bool *(Class::*Member)() const;"); 4359 verifyFormat("void f() {\n" 4360 " (a->*f)();\n" 4361 " a->*x;\n" 4362 " (a.*f)();\n" 4363 " ((*a).*f)();\n" 4364 " a.*x;\n" 4365 "}"); 4366 verifyFormat("void f() {\n" 4367 " (a->*aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)(\n" 4368 " aaaa, bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb);\n" 4369 "}"); 4370 FormatStyle Style = getLLVMStyle(); 4371 Style.PointerBindsToType = true; 4372 verifyFormat("typedef bool* (Class::*Member)() const;", Style); 4373 } 4374 4375 TEST_F(FormatTest, UnderstandsUnaryOperators) { 4376 verifyFormat("int a = -2;"); 4377 verifyFormat("f(-1, -2, -3);"); 4378 verifyFormat("a[-1] = 5;"); 4379 verifyFormat("int a = 5 + -2;"); 4380 verifyFormat("if (i == -1) {\n}"); 4381 verifyFormat("if (i != -1) {\n}"); 4382 verifyFormat("if (i > -1) {\n}"); 4383 verifyFormat("if (i < -1) {\n}"); 4384 verifyFormat("++(a->f());"); 4385 verifyFormat("--(a->f());"); 4386 verifyFormat("(a->f())++;"); 4387 verifyFormat("a[42]++;"); 4388 verifyFormat("if (!(a->f())) {\n}"); 4389 4390 verifyFormat("a-- > b;"); 4391 verifyFormat("b ? -a : c;"); 4392 verifyFormat("n * sizeof char16;"); 4393 verifyFormat("n * alignof char16;", getGoogleStyle()); 4394 verifyFormat("sizeof(char);"); 4395 verifyFormat("alignof(char);", getGoogleStyle()); 4396 4397 verifyFormat("return -1;"); 4398 verifyFormat("switch (a) {\n" 4399 "case -1:\n" 4400 " break;\n" 4401 "}"); 4402 verifyFormat("#define X -1"); 4403 verifyFormat("#define X -kConstant"); 4404 4405 verifyFormat("const NSPoint kBrowserFrameViewPatternOffset = {-5, +3};"); 4406 verifyFormat("const NSPoint kBrowserFrameViewPatternOffset = {+5, -3};"); 4407 4408 verifyFormat("int a = /* confusing comment */ -1;"); 4409 // FIXME: The space after 'i' is wrong, but hopefully, this is a rare case. 4410 verifyFormat("int a = i /* confusing comment */++;"); 4411 } 4412 4413 TEST_F(FormatTest, DoesNotIndentRelativeToUnaryOperators) { 4414 verifyFormat("if (!aaaaaaaaaa( // break\n" 4415 " aaaaa)) {\n" 4416 "}"); 4417 verifyFormat("aaaaaaaaaa(!aaaaaaaaaa( // break\n" 4418 " aaaaa));"); 4419 verifyFormat("*aaa = aaaaaaa( // break\n" 4420 " bbbbbb);"); 4421 } 4422 4423 TEST_F(FormatTest, UnderstandsOverloadedOperators) { 4424 verifyFormat("bool operator<();"); 4425 verifyFormat("bool operator>();"); 4426 verifyFormat("bool operator=();"); 4427 verifyFormat("bool operator==();"); 4428 verifyFormat("bool operator!=();"); 4429 verifyFormat("int operator+();"); 4430 verifyFormat("int operator++();"); 4431 verifyFormat("bool operator();"); 4432 verifyFormat("bool operator()();"); 4433 verifyFormat("bool operator[]();"); 4434 verifyFormat("operator bool();"); 4435 verifyFormat("operator int();"); 4436 verifyFormat("operator void *();"); 4437 verifyFormat("operator SomeType<int>();"); 4438 verifyFormat("operator SomeType<int, int>();"); 4439 verifyFormat("operator SomeType<SomeType<int>>();"); 4440 verifyFormat("void *operator new(std::size_t size);"); 4441 verifyFormat("void *operator new[](std::size_t size);"); 4442 verifyFormat("void operator delete(void *ptr);"); 4443 verifyFormat("void operator delete[](void *ptr);"); 4444 verifyFormat("template <typename AAAAAAA, typename BBBBBBB>\n" 4445 "AAAAAAA operator/(const AAAAAAA &a, BBBBBBB &b);"); 4446 4447 verifyFormat( 4448 "ostream &operator<<(ostream &OutputStream,\n" 4449 " SomeReallyLongType WithSomeReallyLongValue);"); 4450 verifyFormat("bool operator<(const aaaaaaaaaaaaaaaaaaaaa &left,\n" 4451 " const aaaaaaaaaaaaaaaaaaaaa &right) {\n" 4452 " return left.group < right.group;\n" 4453 "}"); 4454 verifyFormat("SomeType &operator=(const SomeType &S);"); 4455 4456 verifyGoogleFormat("operator void*();"); 4457 verifyGoogleFormat("operator SomeType<SomeType<int>>();"); 4458 verifyGoogleFormat("operator ::A();"); 4459 4460 verifyFormat("using A::operator+;"); 4461 4462 verifyFormat("Deleted &operator=(const Deleted &)& = default;"); 4463 verifyFormat("Deleted &operator=(const Deleted &)&& = delete;"); 4464 verifyGoogleFormat("Deleted& operator=(const Deleted&)& = default;"); 4465 verifyGoogleFormat("Deleted& operator=(const Deleted&)&& = delete;"); 4466 } 4467 4468 TEST_F(FormatTest, UnderstandsNewAndDelete) { 4469 verifyFormat("void f() {\n" 4470 " A *a = new A;\n" 4471 " A *a = new (placement) A;\n" 4472 " delete a;\n" 4473 " delete (A *)a;\n" 4474 "}"); 4475 } 4476 4477 TEST_F(FormatTest, UnderstandsUsesOfStarAndAmp) { 4478 verifyFormat("int *f(int *a) {}"); 4479 verifyFormat("int main(int argc, char **argv) {}"); 4480 verifyFormat("Test::Test(int b) : a(b * b) {}"); 4481 verifyIndependentOfContext("f(a, *a);"); 4482 verifyFormat("void g() { f(*a); }"); 4483 verifyIndependentOfContext("int a = b * 10;"); 4484 verifyIndependentOfContext("int a = 10 * b;"); 4485 verifyIndependentOfContext("int a = b * c;"); 4486 verifyIndependentOfContext("int a += b * c;"); 4487 verifyIndependentOfContext("int a -= b * c;"); 4488 verifyIndependentOfContext("int a *= b * c;"); 4489 verifyIndependentOfContext("int a /= b * c;"); 4490 verifyIndependentOfContext("int a = *b;"); 4491 verifyIndependentOfContext("int a = *b * c;"); 4492 verifyIndependentOfContext("int a = b * *c;"); 4493 verifyIndependentOfContext("return 10 * b;"); 4494 verifyIndependentOfContext("return *b * *c;"); 4495 verifyIndependentOfContext("return a & ~b;"); 4496 verifyIndependentOfContext("f(b ? *c : *d);"); 4497 verifyIndependentOfContext("int a = b ? *c : *d;"); 4498 verifyIndependentOfContext("*b = a;"); 4499 verifyIndependentOfContext("a * ~b;"); 4500 verifyIndependentOfContext("a * !b;"); 4501 verifyIndependentOfContext("a * +b;"); 4502 verifyIndependentOfContext("a * -b;"); 4503 verifyIndependentOfContext("a * ++b;"); 4504 verifyIndependentOfContext("a * --b;"); 4505 verifyIndependentOfContext("a[4] * b;"); 4506 verifyIndependentOfContext("a[a * a] = 1;"); 4507 verifyIndependentOfContext("f() * b;"); 4508 verifyIndependentOfContext("a * [self dostuff];"); 4509 verifyIndependentOfContext("int x = a * (a + b);"); 4510 verifyIndependentOfContext("(a *)(a + b);"); 4511 verifyIndependentOfContext("int *pa = (int *)&a;"); 4512 verifyIndependentOfContext("return sizeof(int **);"); 4513 verifyIndependentOfContext("return sizeof(int ******);"); 4514 verifyIndependentOfContext("return (int **&)a;"); 4515 verifyIndependentOfContext("f((*PointerToArray)[10]);"); 4516 verifyFormat("void f(Type (*parameter)[10]) {}"); 4517 verifyGoogleFormat("return sizeof(int**);"); 4518 verifyIndependentOfContext("Type **A = static_cast<Type **>(P);"); 4519 verifyGoogleFormat("Type** A = static_cast<Type**>(P);"); 4520 verifyFormat("auto a = [](int **&, int ***) {};"); 4521 verifyFormat("auto PointerBinding = [](const char *S) {};"); 4522 verifyFormat("typedef typeof(int(int, int)) *MyFunc;"); 4523 verifyIndependentOfContext("typedef void (*f)(int *a);"); 4524 4525 verifyIndependentOfContext("InvalidRegions[*R] = 0;"); 4526 4527 verifyIndependentOfContext("A<int *> a;"); 4528 verifyIndependentOfContext("A<int **> a;"); 4529 verifyIndependentOfContext("A<int *, int *> a;"); 4530 verifyIndependentOfContext("A<int *[]> a;"); 4531 verifyIndependentOfContext( 4532 "const char *const p = reinterpret_cast<const char *const>(q);"); 4533 verifyIndependentOfContext("A<int **, int **> a;"); 4534 verifyIndependentOfContext("void f(int *a = d * e, int *b = c * d);"); 4535 verifyFormat("for (char **a = b; *a; ++a) {\n}"); 4536 verifyFormat("for (; a && b;) {\n}"); 4537 4538 verifyFormat( 4539 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 4540 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa, *aaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 4541 4542 verifyGoogleFormat("int main(int argc, char** argv) {}"); 4543 verifyGoogleFormat("A<int*> a;"); 4544 verifyGoogleFormat("A<int**> a;"); 4545 verifyGoogleFormat("A<int*, int*> a;"); 4546 verifyGoogleFormat("A<int**, int**> a;"); 4547 verifyGoogleFormat("f(b ? *c : *d);"); 4548 verifyGoogleFormat("int a = b ? *c : *d;"); 4549 verifyGoogleFormat("Type* t = **x;"); 4550 verifyGoogleFormat("Type* t = *++*x;"); 4551 verifyGoogleFormat("*++*x;"); 4552 verifyGoogleFormat("Type* t = const_cast<T*>(&*x);"); 4553 verifyGoogleFormat("Type* t = x++ * y;"); 4554 verifyGoogleFormat( 4555 "const char* const p = reinterpret_cast<const char* const>(q);"); 4556 4557 verifyIndependentOfContext("a = *(x + y);"); 4558 verifyIndependentOfContext("a = &(x + y);"); 4559 verifyIndependentOfContext("*(x + y).call();"); 4560 verifyIndependentOfContext("&(x + y)->call();"); 4561 verifyFormat("void f() { &(*I).first; }"); 4562 4563 verifyIndependentOfContext("f(b * /* confusing comment */ ++c);"); 4564 verifyFormat( 4565 "int *MyValues = {\n" 4566 " *A, // Operator detection might be confused by the '{'\n" 4567 " *BB // Operator detection might be confused by previous comment\n" 4568 "};"); 4569 4570 verifyIndependentOfContext("if (int *a = &b)"); 4571 verifyIndependentOfContext("if (int &a = *b)"); 4572 verifyIndependentOfContext("if (a & b[i])"); 4573 verifyIndependentOfContext("if (a::b::c::d & b[i])"); 4574 verifyIndependentOfContext("if (*b[i])"); 4575 verifyIndependentOfContext("if (int *a = (&b))"); 4576 verifyIndependentOfContext("while (int *a = &b)"); 4577 verifyIndependentOfContext("size = sizeof *a;"); 4578 verifyFormat("void f() {\n" 4579 " for (const int &v : Values) {\n" 4580 " }\n" 4581 "}"); 4582 verifyFormat("for (int i = a * a; i < 10; ++i) {\n}"); 4583 verifyFormat("for (int i = 0; i < a * a; ++i) {\n}"); 4584 verifyGoogleFormat("for (int i = 0; i * 2 < z; i *= 2) {\n}"); 4585 4586 verifyFormat("#define A (!a * b)"); 4587 verifyFormat("#define MACRO \\\n" 4588 " int *i = a * b; \\\n" 4589 " void f(a *b);", 4590 getLLVMStyleWithColumns(19)); 4591 4592 verifyIndependentOfContext("A = new SomeType *[Length];"); 4593 verifyIndependentOfContext("A = new SomeType *[Length]();"); 4594 verifyIndependentOfContext("T **t = new T *;"); 4595 verifyIndependentOfContext("T **t = new T *();"); 4596 verifyGoogleFormat("A = new SomeType* [Length]();"); 4597 verifyGoogleFormat("A = new SomeType* [Length];"); 4598 verifyGoogleFormat("T** t = new T*;"); 4599 verifyGoogleFormat("T** t = new T*();"); 4600 4601 FormatStyle PointerLeft = getLLVMStyle(); 4602 PointerLeft.PointerBindsToType = true; 4603 verifyFormat("delete *x;", PointerLeft); 4604 verifyFormat("STATIC_ASSERT((a & b) == 0);"); 4605 verifyFormat("STATIC_ASSERT(0 == (a & b));"); 4606 verifyFormat("template <bool a, bool b> " 4607 "typename t::if<x && y>::type f() {};"); 4608 verifyFormat("template <int *y> f() {};"); 4609 verifyFormat("vector<int *> v;"); 4610 verifyFormat("vector<int *const> v;"); 4611 verifyFormat("vector<int *const **const *> v;"); 4612 verifyFormat("vector<int *volatile> v;"); 4613 verifyFormat("vector<a * b> v;"); 4614 verifyFormat("foo<b && false>();"); 4615 verifyFormat("foo<b & 1>();"); 4616 4617 verifyIndependentOfContext("MACRO(int *i);"); 4618 verifyIndependentOfContext("MACRO(auto *a);"); 4619 verifyIndependentOfContext("MACRO(const A *a);"); 4620 // FIXME: Is there a way to make this work? 4621 // verifyIndependentOfContext("MACRO(A *a);"); 4622 4623 EXPECT_EQ("#define OP(x) \\\n" 4624 " ostream &operator<<(ostream &s, const A &a) { \\\n" 4625 " return s << a.DebugString(); \\\n" 4626 " }", 4627 format("#define OP(x) \\\n" 4628 " ostream &operator<<(ostream &s, const A &a) { \\\n" 4629 " return s << a.DebugString(); \\\n" 4630 " }", 4631 getLLVMStyleWithColumns(50))); 4632 4633 // FIXME: We cannot handle this case yet; we might be able to figure out that 4634 // foo<x> d > v; doesn't make sense. 4635 verifyFormat("foo<a < b && c> d > v;"); 4636 } 4637 4638 TEST_F(FormatTest, UnderstandsAttributes) { 4639 verifyFormat("SomeType s __attribute__((unused)) (InitValue);"); 4640 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa __attribute__((unused))\n" 4641 "aaaaaaaaaaaaaaaaaaaaaaa(int i);"); 4642 } 4643 4644 TEST_F(FormatTest, UnderstandsEllipsis) { 4645 verifyFormat("int printf(const char *fmt, ...);"); 4646 verifyFormat("template <class... Ts> void Foo(Ts... ts) { Foo(ts...); }"); 4647 verifyFormat("template <class... Ts> void Foo(Ts *... ts) {}"); 4648 4649 FormatStyle PointersLeft = getLLVMStyle(); 4650 PointersLeft.PointerBindsToType = true; 4651 verifyFormat("template <class... Ts> void Foo(Ts*... ts) {}", PointersLeft); 4652 } 4653 4654 TEST_F(FormatTest, AdaptivelyFormatsPointersAndReferences) { 4655 EXPECT_EQ("int *a;\n" 4656 "int *a;\n" 4657 "int *a;", 4658 format("int *a;\n" 4659 "int* a;\n" 4660 "int *a;", 4661 getGoogleStyle())); 4662 EXPECT_EQ("int* a;\n" 4663 "int* a;\n" 4664 "int* a;", 4665 format("int* a;\n" 4666 "int* a;\n" 4667 "int *a;", 4668 getGoogleStyle())); 4669 EXPECT_EQ("int *a;\n" 4670 "int *a;\n" 4671 "int *a;", 4672 format("int *a;\n" 4673 "int * a;\n" 4674 "int * a;", 4675 getGoogleStyle())); 4676 } 4677 4678 TEST_F(FormatTest, UnderstandsRvalueReferences) { 4679 verifyFormat("int f(int &&a) {}"); 4680 verifyFormat("int f(int a, char &&b) {}"); 4681 verifyFormat("void f() { int &&a = b; }"); 4682 verifyGoogleFormat("int f(int a, char&& b) {}"); 4683 verifyGoogleFormat("void f() { int&& a = b; }"); 4684 4685 verifyIndependentOfContext("A<int &&> a;"); 4686 verifyIndependentOfContext("A<int &&, int &&> a;"); 4687 verifyGoogleFormat("A<int&&> a;"); 4688 verifyGoogleFormat("A<int&&, int&&> a;"); 4689 4690 // Not rvalue references: 4691 verifyFormat("template <bool B, bool C> class A {\n" 4692 " static_assert(B && C, \"Something is wrong\");\n" 4693 "};"); 4694 verifyGoogleFormat("#define IF(a, b, c) if (a && (b == c))"); 4695 verifyGoogleFormat("#define WHILE(a, b, c) while (a && (b == c))"); 4696 verifyFormat("#define A(a, b) (a && b)"); 4697 } 4698 4699 TEST_F(FormatTest, FormatsBinaryOperatorsPrecedingEquals) { 4700 verifyFormat("void f() {\n" 4701 " x[aaaaaaaaa -\n" 4702 " b] = 23;\n" 4703 "}", 4704 getLLVMStyleWithColumns(15)); 4705 } 4706 4707 TEST_F(FormatTest, FormatsCasts) { 4708 verifyFormat("Type *A = static_cast<Type *>(P);"); 4709 verifyFormat("Type *A = (Type *)P;"); 4710 verifyFormat("Type *A = (vector<Type *, int *>)P;"); 4711 verifyFormat("int a = (int)(2.0f);"); 4712 verifyFormat("int a = (int)2.0f;"); 4713 verifyFormat("x[(int32)y];"); 4714 verifyFormat("x = (int32)y;"); 4715 verifyFormat("#define AA(X) sizeof(((X *)NULL)->a)"); 4716 verifyFormat("int a = (int)*b;"); 4717 verifyFormat("int a = (int)2.0f;"); 4718 verifyFormat("int a = (int)~0;"); 4719 verifyFormat("int a = (int)++a;"); 4720 verifyFormat("int a = (int)sizeof(int);"); 4721 verifyFormat("int a = (int)+2;"); 4722 verifyFormat("my_int a = (my_int)2.0f;"); 4723 verifyFormat("my_int a = (my_int)sizeof(int);"); 4724 verifyFormat("return (my_int)aaa;"); 4725 verifyFormat("#define x ((int)-1)"); 4726 verifyFormat("#define p(q) ((int *)&q)"); 4727 4728 // FIXME: Without type knowledge, this can still fall apart miserably. 4729 verifyFormat("void f() { my_int a = (my_int) * b; }"); 4730 verifyFormat("void f() { return P ? (my_int) * P : (my_int)0; }"); 4731 verifyFormat("my_int a = (my_int) ~0;"); 4732 verifyFormat("my_int a = (my_int)++ a;"); 4733 verifyFormat("my_int a = (my_int) + 2;"); 4734 4735 // Don't break after a cast's 4736 verifyFormat("int aaaaaaaaaaaaaaaaaaaaaaaaaaa =\n" 4737 " (aaaaaaaaaaaaaaaaaaaaaaaaaa *)(aaaaaaaaaaaaaaaaaaaaaa +\n" 4738 " bbbbbbbbbbbbbbbbbbbbbb);"); 4739 4740 // These are not casts. 4741 verifyFormat("void f(int *) {}"); 4742 verifyFormat("f(foo)->b;"); 4743 verifyFormat("f(foo).b;"); 4744 verifyFormat("f(foo)(b);"); 4745 verifyFormat("f(foo)[b];"); 4746 verifyFormat("[](foo) { return 4; }(bar);"); 4747 verifyFormat("(*funptr)(foo)[4];"); 4748 verifyFormat("funptrs[4](foo)[4];"); 4749 verifyFormat("void f(int *);"); 4750 verifyFormat("void f(int *) = 0;"); 4751 verifyFormat("void f(SmallVector<int>) {}"); 4752 verifyFormat("void f(SmallVector<int>);"); 4753 verifyFormat("void f(SmallVector<int>) = 0;"); 4754 verifyFormat("void f(int i = (kValue) * kMask) {}"); 4755 verifyFormat("void f(int i = (kA * kB) & kMask) {}"); 4756 verifyFormat("int a = sizeof(int) * b;"); 4757 verifyFormat("int a = alignof(int) * b;", getGoogleStyle()); 4758 verifyFormat("template <> void f<int>(int i) SOME_ANNOTATION;"); 4759 verifyFormat("f(\"%\" SOME_MACRO(ll) \"d\");"); 4760 verifyFormat("aaaaa &operator=(const aaaaa &) LLVM_DELETED_FUNCTION;"); 4761 4762 // These are not casts, but at some point were confused with casts. 4763 verifyFormat("virtual void foo(int *) override;"); 4764 verifyFormat("virtual void foo(char &) const;"); 4765 verifyFormat("virtual void foo(int *a, char *) const;"); 4766 verifyFormat("int a = sizeof(int *) + b;"); 4767 verifyFormat("int a = alignof(int *) + b;", getGoogleStyle()); 4768 4769 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *foo = (aaaaaaaaaaaaaaaaa *)\n" 4770 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;"); 4771 // FIXME: The indentation here is not ideal. 4772 verifyFormat( 4773 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4774 " [bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb] = (*cccccccccccccccc)\n" 4775 " [dddddddddddddddddddddddddddddddddddddddddddddddddddddddd];"); 4776 } 4777 4778 TEST_F(FormatTest, FormatsFunctionTypes) { 4779 verifyFormat("A<bool()> a;"); 4780 verifyFormat("A<SomeType()> a;"); 4781 verifyFormat("A<void (*)(int, std::string)> a;"); 4782 verifyFormat("A<void *(int)>;"); 4783 verifyFormat("void *(*a)(int *, SomeType *);"); 4784 verifyFormat("int (*func)(void *);"); 4785 verifyFormat("void f() { int (*func)(void *); }"); 4786 verifyFormat("template <class CallbackClass>\n" 4787 "using MyCallback = void (CallbackClass::*)(SomeObject *Data);"); 4788 4789 verifyGoogleFormat("A<void*(int*, SomeType*)>;"); 4790 verifyGoogleFormat("void* (*a)(int);"); 4791 verifyGoogleFormat( 4792 "template <class CallbackClass>\n" 4793 "using MyCallback = void (CallbackClass::*)(SomeObject* Data);"); 4794 4795 // Other constructs can look somewhat like function types: 4796 verifyFormat("A<sizeof(*x)> a;"); 4797 verifyFormat("#define DEREF_AND_CALL_F(x) f(*x)"); 4798 verifyFormat("some_var = function(*some_pointer_var)[0];"); 4799 verifyFormat("void f() { function(*some_pointer_var)[0] = 10; }"); 4800 } 4801 4802 TEST_F(FormatTest, BreaksLongDeclarations) { 4803 verifyFormat("typedef LoooooooooooooooooooooooooooooooooooooooongType\n" 4804 " AnotherNameForTheLongType;", 4805 getGoogleStyle()); 4806 verifyFormat("typedef LongTemplateType<aaaaaaaaaaaaaaaaaaa()>\n" 4807 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;", 4808 getGoogleStyle()); 4809 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType\n" 4810 " LoooooooooooooooooooooooooooooooooooooooongVariable;", 4811 getGoogleStyle()); 4812 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType const\n" 4813 " LoooooooooooooooooooooooooooooooooooooooongVariable;", 4814 getGoogleStyle()); 4815 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType\n" 4816 " LoooooooooooooooooooooooooooooooongFunctionDeclaration();", 4817 getGoogleStyle()); 4818 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType\n" 4819 "LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}"); 4820 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongReturnType const\n" 4821 "LooooooooooooooooooooooooooooooooooongFunctionDefinition() {}"); 4822 4823 // FIXME: Without the comment, this breaks after "(". 4824 verifyFormat("LoooooooooooooooooooooooooooooooooooooooongType // break\n" 4825 " (*LoooooooooooooooooooooooooooongFunctionTypeVarialbe)();", 4826 getGoogleStyle()); 4827 4828 verifyFormat("int *someFunction(int LoooooooooooooooooooongParam1,\n" 4829 " int LoooooooooooooooooooongParam2) {}"); 4830 verifyFormat( 4831 "TypeSpecDecl *TypeSpecDecl::Create(ASTContext &C, DeclContext *DC,\n" 4832 " SourceLocation L, IdentifierIn *II,\n" 4833 " Type *T) {}"); 4834 verifyFormat("ReallyLongReturnType<TemplateParam1, TemplateParam2>\n" 4835 "ReallyReallyLongFunctionName(\n" 4836 " const std::string &SomeParameter,\n" 4837 " const SomeType<string, SomeOtherTemplateParameter> &\n" 4838 " ReallyReallyLongParameterName,\n" 4839 " const SomeType<string, SomeOtherTemplateParameter> &\n" 4840 " AnotherLongParameterName) {}"); 4841 verifyFormat("template <typename A>\n" 4842 "SomeLoooooooooooooooooooooongType<\n" 4843 " typename some_namespace::SomeOtherType<A>::Type>\n" 4844 "Function() {}"); 4845 4846 verifyGoogleFormat( 4847 "aaaaaaaaaaaaaaaa::aaaaaaaaaaaaaaaa<aaaaaaaaaaaaa, aaaaaaaaaaaa>\n" 4848 " aaaaaaaaaaaaaaaaaaaaaaa;"); 4849 verifyGoogleFormat( 4850 "TypeSpecDecl* TypeSpecDecl::Create(ASTContext& C, DeclContext* DC,\n" 4851 " SourceLocation L) {}"); 4852 verifyGoogleFormat( 4853 "some_namespace::LongReturnType\n" 4854 "long_namespace::SomeVeryLongClass::SomeVeryLongFunction(\n" 4855 " int first_long_parameter, int second_parameter) {}"); 4856 4857 verifyGoogleFormat("template <typename T>\n" 4858 "aaaaaaaa::aaaaa::aaaaaa<T, aaaaaaaaaaaaaaaaaaaaaaaaa>\n" 4859 "aaaaaaaaaaaaaaaaaaaaaaaa<T>::aaaaaaa() {}"); 4860 verifyGoogleFormat("A<A<A>> aaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 4861 " int aaaaaaaaaaaaaaaaaaaaaaa);"); 4862 } 4863 4864 TEST_F(FormatTest, FormatsArrays) { 4865 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaa[aaaaaaaaaaaaaaaaaaaaaaaaa]\n" 4866 " [bbbbbbbbbbbbbbbbbbbbbbbbb] = c;"); 4867 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4868 " [bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb] = ccccccccccc;"); 4869 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4870 " [a][bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb] = cccccccc;"); 4871 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" 4872 " [aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa]\n" 4873 " [bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb] = ccccccccccc;"); 4874 verifyFormat( 4875 "llvm::outs() << \"aaaaaaaaaaaa: \"\n" 4876 " << (*aaaaaaaiaaaaaaa)[aaaaaaaaaaaaaaaaaaaaaaaaa]\n" 4877 " [aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa];"); 4878 4879 verifyGoogleFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa<int>\n" 4880 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[aaaaaaaaaaaa];"); 4881 } 4882 4883 TEST_F(FormatTest, LineStartsWithSpecialCharacter) { 4884 verifyFormat("(a)->b();"); 4885 verifyFormat("--a;"); 4886 } 4887 4888 TEST_F(FormatTest, HandlesIncludeDirectives) { 4889 verifyFormat("#include <string>\n" 4890 "#include <a/b/c.h>\n" 4891 "#include \"a/b/string\"\n" 4892 "#include \"string.h\"\n" 4893 "#include \"string.h\"\n" 4894 "#include <a-a>\n" 4895 "#include < path with space >\n" 4896 "#include \"abc.h\" // this is included for ABC\n" 4897 "#include \"some long include\" // with a comment\n" 4898 "#include \"some very long include paaaaaaaaaaaaaaaaaaaaaaath\"", 4899 getLLVMStyleWithColumns(35)); 4900 EXPECT_EQ("#include \"a.h\"", format("#include \"a.h\"")); 4901 EXPECT_EQ("#include <a>", format("#include<a>")); 4902 4903 verifyFormat("#import <string>"); 4904 verifyFormat("#import <a/b/c.h>"); 4905 verifyFormat("#import \"a/b/string\""); 4906 verifyFormat("#import \"string.h\""); 4907 verifyFormat("#import \"string.h\""); 4908 verifyFormat("#if __has_include(<strstream>)\n" 4909 "#include <strstream>\n" 4910 "#endif"); 4911 4912 // Protocol buffer definition or missing "#". 4913 verifyFormat("import \"aaaaaaaaaaaaaaaaa/aaaaaaaaaaaaaaa\";", 4914 getLLVMStyleWithColumns(30)); 4915 } 4916 4917 //===----------------------------------------------------------------------===// 4918 // Error recovery tests. 4919 //===----------------------------------------------------------------------===// 4920 4921 TEST_F(FormatTest, IncompleteParameterLists) { 4922 FormatStyle NoBinPacking = getLLVMStyle(); 4923 NoBinPacking.BinPackParameters = false; 4924 verifyFormat("void aaaaaaaaaaaaaaaaaa(int level,\n" 4925 " double *min_x,\n" 4926 " double *max_x,\n" 4927 " double *min_y,\n" 4928 " double *max_y,\n" 4929 " double *min_z,\n" 4930 " double *max_z, ) {}", 4931 NoBinPacking); 4932 } 4933 4934 TEST_F(FormatTest, IncorrectCodeTrailingStuff) { 4935 verifyFormat("void f() { return; }\n42"); 4936 verifyFormat("void f() {\n" 4937 " if (0)\n" 4938 " return;\n" 4939 "}\n" 4940 "42"); 4941 verifyFormat("void f() { return }\n42"); 4942 verifyFormat("void f() {\n" 4943 " if (0)\n" 4944 " return\n" 4945 "}\n" 4946 "42"); 4947 } 4948 4949 TEST_F(FormatTest, IncorrectCodeMissingSemicolon) { 4950 EXPECT_EQ("void f() { return }", format("void f ( ) { return }")); 4951 EXPECT_EQ("void f() {\n" 4952 " if (a)\n" 4953 " return\n" 4954 "}", 4955 format("void f ( ) { if ( a ) return }")); 4956 EXPECT_EQ("namespace N {\n" 4957 "void f()\n" 4958 "}", 4959 format("namespace N { void f() }")); 4960 EXPECT_EQ("namespace N {\n" 4961 "void f() {}\n" 4962 "void g()\n" 4963 "}", 4964 format("namespace N { void f( ) { } void g( ) }")); 4965 } 4966 4967 TEST_F(FormatTest, IndentationWithinColumnLimitNotPossible) { 4968 verifyFormat("int aaaaaaaa =\n" 4969 " // Overlylongcomment\n" 4970 " b;", 4971 getLLVMStyleWithColumns(20)); 4972 verifyFormat("function(\n" 4973 " ShortArgument,\n" 4974 " LoooooooooooongArgument);\n", 4975 getLLVMStyleWithColumns(20)); 4976 } 4977 4978 TEST_F(FormatTest, IncorrectAccessSpecifier) { 4979 verifyFormat("public:"); 4980 verifyFormat("class A {\n" 4981 "public\n" 4982 " void f() {}\n" 4983 "};"); 4984 verifyFormat("public\n" 4985 "int qwerty;"); 4986 verifyFormat("public\n" 4987 "B {}"); 4988 verifyFormat("public\n" 4989 "{}"); 4990 verifyFormat("public\n" 4991 "B { int x; }"); 4992 } 4993 4994 TEST_F(FormatTest, IncorrectCodeUnbalancedBraces) { 4995 verifyFormat("{"); 4996 verifyFormat("#})"); 4997 } 4998 4999 TEST_F(FormatTest, IncorrectCodeDoNoWhile) { 5000 verifyFormat("do {\n}"); 5001 verifyFormat("do {\n}\n" 5002 "f();"); 5003 verifyFormat("do {\n}\n" 5004 "wheeee(fun);"); 5005 verifyFormat("do {\n" 5006 " f();\n" 5007 "}"); 5008 } 5009 5010 TEST_F(FormatTest, IncorrectCodeMissingParens) { 5011 verifyFormat("if {\n foo;\n foo();\n}"); 5012 verifyFormat("switch {\n foo;\n foo();\n}"); 5013 verifyFormat("for {\n foo;\n foo();\n}"); 5014 verifyFormat("while {\n foo;\n foo();\n}"); 5015 verifyFormat("do {\n foo;\n foo();\n} while;"); 5016 } 5017 5018 TEST_F(FormatTest, DoesNotTouchUnwrappedLinesWithErrors) { 5019 verifyFormat("namespace {\n" 5020 "class Foo { Foo (\n" 5021 "};\n" 5022 "} // comment"); 5023 } 5024 5025 TEST_F(FormatTest, IncorrectCodeErrorDetection) { 5026 EXPECT_EQ("{\n {}\n", format("{\n{\n}\n")); 5027 EXPECT_EQ("{\n {}\n", format("{\n {\n}\n")); 5028 EXPECT_EQ("{\n {}\n", format("{\n {\n }\n")); 5029 EXPECT_EQ("{\n {}\n}\n}\n", format("{\n {\n }\n }\n}\n")); 5030 5031 EXPECT_EQ("{\n" 5032 " {\n" 5033 " breakme(\n" 5034 " qwe);\n" 5035 " }\n", 5036 format("{\n" 5037 " {\n" 5038 " breakme(qwe);\n" 5039 "}\n", 5040 getLLVMStyleWithColumns(10))); 5041 } 5042 5043 TEST_F(FormatTest, LayoutCallsInsideBraceInitializers) { 5044 verifyFormat("int x = {\n" 5045 " avariable,\n" 5046 " b(alongervariable)};", 5047 getLLVMStyleWithColumns(25)); 5048 } 5049 5050 TEST_F(FormatTest, LayoutBraceInitializersInReturnStatement) { 5051 verifyFormat("return (a)(b) {1, 2, 3};"); 5052 } 5053 5054 TEST_F(FormatTest, LayoutCxx11BraceInitializers) { 5055 verifyFormat("vector<int> x{1, 2, 3, 4};"); 5056 verifyFormat("vector<int> x{\n" 5057 " 1, 2, 3, 4,\n" 5058 "};"); 5059 verifyFormat("vector<T> x{{}, {}, {}, {}};"); 5060 verifyFormat("f({1, 2});"); 5061 verifyFormat("auto v = Foo{-1};"); 5062 verifyFormat("f({1, 2}, {{2, 3}, {4, 5}}, c, {d});"); 5063 verifyFormat("Class::Class : member{1, 2, 3} {}"); 5064 verifyFormat("new vector<int>{1, 2, 3};"); 5065 verifyFormat("new int[3]{1, 2, 3};"); 5066 verifyFormat("return {arg1, arg2};"); 5067 verifyFormat("return {arg1, SomeType{parameter}};"); 5068 verifyFormat("int count = set<int>{f(), g(), h()}.size();"); 5069 verifyFormat("new T{arg1, arg2};"); 5070 verifyFormat("f(MyMap[{composite, key}]);"); 5071 verifyFormat("class Class {\n" 5072 " T member = {arg1, arg2};\n" 5073 "};"); 5074 verifyFormat("vector<int> foo = {::SomeGlobalFunction()};"); 5075 5076 // In combination with BinPackParameters = false. 5077 FormatStyle NoBinPacking = getLLVMStyle(); 5078 NoBinPacking.BinPackParameters = false; 5079 verifyFormat("const Aaaaaa aaaaa = {aaaaa,\n" 5080 " bbbbb,\n" 5081 " ccccc,\n" 5082 " ddddd,\n" 5083 " eeeee,\n" 5084 " ffffff,\n" 5085 " ggggg,\n" 5086 " hhhhhh,\n" 5087 " iiiiii,\n" 5088 " jjjjjj,\n" 5089 " kkkkkk};", 5090 NoBinPacking); 5091 verifyFormat("const Aaaaaa aaaaa = {\n" 5092 " aaaaa,\n" 5093 " bbbbb,\n" 5094 " ccccc,\n" 5095 " ddddd,\n" 5096 " eeeee,\n" 5097 " ffffff,\n" 5098 " ggggg,\n" 5099 " hhhhhh,\n" 5100 " iiiiii,\n" 5101 " jjjjjj,\n" 5102 " kkkkkk,\n" 5103 "};", 5104 NoBinPacking); 5105 5106 // FIXME: The alignment of these trailing comments might be bad. Then again, 5107 // this might be utterly useless in real code. 5108 verifyFormat("Constructor::Constructor()\n" 5109 " : some_value{ //\n" 5110 " aaaaaaa //\n" 5111 " } {}"); 5112 5113 // In braced lists, the first comment is always assumed to belong to the 5114 // first element. Thus, it can be moved to the next or previous line as 5115 // appropriate. 5116 EXPECT_EQ("function({// First element:\n" 5117 " 1,\n" 5118 " // Second element:\n" 5119 " 2});", 5120 format("function({\n" 5121 " // First element:\n" 5122 " 1,\n" 5123 " // Second element:\n" 5124 " 2});")); 5125 EXPECT_EQ("std::vector<int> MyNumbers{\n" 5126 " // First element:\n" 5127 " 1,\n" 5128 " // Second element:\n" 5129 " 2};", 5130 format("std::vector<int> MyNumbers{// First element:\n" 5131 " 1,\n" 5132 " // Second element:\n" 5133 " 2};", 5134 getLLVMStyleWithColumns(30))); 5135 5136 FormatStyle ExtraSpaces = getLLVMStyle(); 5137 ExtraSpaces.Cpp11BracedListStyle = false; 5138 ExtraSpaces.ColumnLimit = 75; 5139 verifyFormat("vector<int> x{ 1, 2, 3, 4 };", ExtraSpaces); 5140 verifyFormat("vector<T> x{ {}, {}, {}, {} };", ExtraSpaces); 5141 verifyFormat("f({ 1, 2 });", ExtraSpaces); 5142 verifyFormat("auto v = Foo{ 1 };", ExtraSpaces); 5143 verifyFormat("f({ 1, 2 }, { { 2, 3 }, { 4, 5 } }, c, { d });", ExtraSpaces); 5144 verifyFormat("Class::Class : member{ 1, 2, 3 } {}", ExtraSpaces); 5145 verifyFormat("new vector<int>{ 1, 2, 3 };", ExtraSpaces); 5146 verifyFormat("new int[3]{ 1, 2, 3 };", ExtraSpaces); 5147 verifyFormat("return { arg1, arg2 };", ExtraSpaces); 5148 verifyFormat("return { arg1, SomeType{ parameter } };", ExtraSpaces); 5149 verifyFormat("int count = set<int>{ f(), g(), h() }.size();", ExtraSpaces); 5150 verifyFormat("new T{ arg1, arg2 };", ExtraSpaces); 5151 verifyFormat("f(MyMap[{ composite, key }]);", ExtraSpaces); 5152 verifyFormat("class Class {\n" 5153 " T member = { arg1, arg2 };\n" 5154 "};", 5155 ExtraSpaces); 5156 verifyFormat( 5157 "foo = aaaaaaaaaaa ? vector<int>{ aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 5158 " aaaaaaaaaaaaaaaaaaaa, aaaaa }\n" 5159 " : vector<int>{ bbbbbbbbbbbbbbbbbbbbbbbbbbb,\n" 5160 " bbbbbbbbbbbbbbbbbbbb, bbbbb };", 5161 ExtraSpaces); 5162 verifyFormat("DoSomethingWithVector({} /* No data */);", ExtraSpaces); 5163 verifyFormat("DoSomethingWithVector({\n" 5164 " {} /* No data */\n" 5165 " },\n" 5166 " { { 1, 2 } });", 5167 ExtraSpaces); 5168 verifyFormat( 5169 "someFunction(OtherParam,\n" 5170 " BracedList{ // comment 1 (Forcing interesting break)\n" 5171 " param1, param2,\n" 5172 " // comment 2\n" 5173 " param3, param4 });", 5174 ExtraSpaces); 5175 verifyFormat( 5176 "std::this_thread::sleep_for(\n" 5177 " std::chrono::nanoseconds{ std::chrono::seconds{ 1 } } / 5);", 5178 ExtraSpaces); 5179 verifyFormat("std::vector<MyValues> aaaaaaaaaaaaaaaaaaa{\n" 5180 " aaaaaaa, aaaaaaaaaa,\n" 5181 " aaaaa, aaaaaaaaaaaaaaa,\n" 5182 " aaa, aaaaaaaaaa,\n" 5183 " a, aaaaaaaaaaaaaaaaaaaaa,\n" 5184 " aaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaa,\n" 5185 " aaaaaaa, a\n" 5186 "};", 5187 ExtraSpaces); 5188 verifyFormat("vector<int> foo = { ::SomeGlobalFunction() };", ExtraSpaces); 5189 } 5190 5191 TEST_F(FormatTest, FormatsBracedListsInColumnLayout) { 5192 verifyFormat("vector<int> x = {1, 22, 333, 4444, 55555, 666666, 7777777,\n" 5193 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 5194 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 5195 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 5196 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 5197 " 1, 22, 333, 4444, 55555, 666666, 7777777};"); 5198 verifyFormat("vector<int> x = {1, 22, 333, 4444, 55555, 666666, 7777777,\n" 5199 " // line comment\n" 5200 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 5201 " 1, 22, 333, 4444, 55555,\n" 5202 " // line comment\n" 5203 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 5204 " 1, 22, 333, 4444, 55555, 666666, 7777777};"); 5205 verifyFormat( 5206 "vector<int> x = {1, 22, 333, 4444, 55555, 666666, 7777777,\n" 5207 " 1, 22, 333, 4444, 55555, 666666, 7777777,\n" 5208 " 1, 22, 333, 4444, 55555, 666666, // comment\n" 5209 " 7777777, 1, 22, 333, 4444, 55555, 666666,\n" 5210 " 7777777, 1, 22, 333, 4444, 55555, 666666,\n" 5211 " 7777777, 1, 22, 333, 4444, 55555, 666666,\n" 5212 " 7777777};"); 5213 verifyFormat("static const uint16_t CallerSavedRegs64Bittttt[] = {\n" 5214 " X86::RAX, X86::RDX, X86::RCX, X86::RSI, X86::RDI,\n" 5215 " X86::R8, X86::R9, X86::R10, X86::R11, 0};"); 5216 verifyFormat("vector<int> x = {1, 1, 1, 1,\n" 5217 " 1, 1, 1, 1};", 5218 getLLVMStyleWithColumns(39)); 5219 verifyFormat("vector<int> x = {1, 1, 1, 1,\n" 5220 " 1, 1, 1, 1};", 5221 getLLVMStyleWithColumns(38)); 5222 verifyFormat("vector<int> aaaaaaaaaaaaaaaaaaaaaa = {\n" 5223 " 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1};", 5224 getLLVMStyleWithColumns(43)); 5225 5226 // Trailing commas. 5227 verifyFormat("vector<int> x = {\n" 5228 " 1, 1, 1, 1, 1, 1, 1, 1,\n" 5229 "};", 5230 getLLVMStyleWithColumns(39)); 5231 verifyFormat("vector<int> x = {\n" 5232 " 1, 1, 1, 1, 1, 1, 1, 1, //\n" 5233 "};", 5234 getLLVMStyleWithColumns(39)); 5235 verifyFormat("vector<int> x = {\n" 5236 " 1, 1, 1, 1, 1, 1, 1, 1,\n" 5237 " /**/ /**/\n" 5238 "};", 5239 getLLVMStyleWithColumns(39)); 5240 verifyFormat("return {{aaaaaaaaaaaaaaaaaaaaa},\n" 5241 " {aaaaaaaaaaaaaaaaaaa},\n" 5242 " {aaaaaaaaaaaaaaaaaaaaa},\n" 5243 " {aaaaaaaaaaaaaaaaa}};", 5244 getLLVMStyleWithColumns(60)); 5245 5246 // With nested lists, we should either format one item per line or all nested 5247 // lists one one line. 5248 // FIXME: For some nested lists, we can do better. 5249 verifyFormat( 5250 "SomeStruct my_struct_array = {\n" 5251 " {aaaaaa, aaaaaaaa, aaaaaaaaaa, aaaaaaaaa, aaaaaaaaa, aaaaaaaaaa,\n" 5252 " aaaaaaaaaaaaa, aaaaaaa, aaa},\n" 5253 " {aaa, aaa},\n" 5254 " {aaa, aaa},\n" 5255 " {aaaa, aaaa, aaaa, aaaa, aaaa, aaaa, aaaa, aaa},\n" 5256 " {aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaa,\n" 5257 " aaaaaaaaaaaa, a, aaaaaaaaaa, aaaaaaaaa, aaa}};"); 5258 5259 // No column layout should be used here. 5260 verifyFormat("aaaaaaaaaaaaaaa = {aaaaaaaaaaaaaaaaaaaaaaaaaaa, 0, 0,\n" 5261 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb};"); 5262 } 5263 5264 TEST_F(FormatTest, PullTrivialFunctionDefinitionsIntoSingleLine) { 5265 FormatStyle DoNotMerge = getLLVMStyle(); 5266 DoNotMerge.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_None; 5267 5268 verifyFormat("void f() { return 42; }"); 5269 verifyFormat("void f() {\n" 5270 " return 42;\n" 5271 "}", 5272 DoNotMerge); 5273 verifyFormat("void f() {\n" 5274 " // Comment\n" 5275 "}"); 5276 verifyFormat("{\n" 5277 "#error {\n" 5278 " int a;\n" 5279 "}"); 5280 verifyFormat("{\n" 5281 " int a;\n" 5282 "#error {\n" 5283 "}"); 5284 verifyFormat("void f() {} // comment"); 5285 verifyFormat("void f() { int a; } // comment"); 5286 verifyFormat("void f() {\n" 5287 "} // comment", 5288 DoNotMerge); 5289 verifyFormat("void f() {\n" 5290 " int a;\n" 5291 "} // comment", 5292 DoNotMerge); 5293 verifyFormat("void f() {\n" 5294 "} // comment", 5295 getLLVMStyleWithColumns(15)); 5296 5297 verifyFormat("void f() { return 42; }", getLLVMStyleWithColumns(23)); 5298 verifyFormat("void f() {\n return 42;\n}", getLLVMStyleWithColumns(22)); 5299 5300 verifyFormat("void f() {}", getLLVMStyleWithColumns(11)); 5301 verifyFormat("void f() {\n}", getLLVMStyleWithColumns(10)); 5302 verifyFormat("class C {\n" 5303 " C()\n" 5304 " : iiiiiiii(nullptr),\n" 5305 " kkkkkkk(nullptr),\n" 5306 " mmmmmmm(nullptr),\n" 5307 " nnnnnnn(nullptr) {}\n" 5308 "};", 5309 getGoogleStyle()); 5310 5311 FormatStyle NoColumnLimit = getLLVMStyle(); 5312 NoColumnLimit.ColumnLimit = 0; 5313 EXPECT_EQ("A() : b(0) {}", format("A():b(0){}", NoColumnLimit)); 5314 EXPECT_EQ("class C {\n" 5315 " A() : b(0) {}\n" 5316 "};", format("class C{A():b(0){}};", NoColumnLimit)); 5317 EXPECT_EQ("A()\n" 5318 " : b(0) {\n" 5319 "}", 5320 format("A()\n:b(0)\n{\n}", NoColumnLimit)); 5321 5322 FormatStyle DoNotMergeNoColumnLimit = NoColumnLimit; 5323 DoNotMergeNoColumnLimit.AllowShortFunctionsOnASingleLine = 5324 FormatStyle::SFS_None; 5325 EXPECT_EQ("A()\n" 5326 " : b(0) {\n" 5327 "}", 5328 format("A():b(0){}", DoNotMergeNoColumnLimit)); 5329 EXPECT_EQ("A()\n" 5330 " : b(0) {\n" 5331 "}", 5332 format("A()\n:b(0)\n{\n}", DoNotMergeNoColumnLimit)); 5333 5334 verifyFormat("#define A \\\n" 5335 " void f() { \\\n" 5336 " int i; \\\n" 5337 " }", 5338 getLLVMStyleWithColumns(20)); 5339 verifyFormat("#define A \\\n" 5340 " void f() { int i; }", 5341 getLLVMStyleWithColumns(21)); 5342 verifyFormat("#define A \\\n" 5343 " void f() { \\\n" 5344 " int i; \\\n" 5345 " } \\\n" 5346 " int j;", 5347 getLLVMStyleWithColumns(22)); 5348 verifyFormat("#define A \\\n" 5349 " void f() { int i; } \\\n" 5350 " int j;", 5351 getLLVMStyleWithColumns(23)); 5352 } 5353 5354 TEST_F(FormatTest, PullInlineFunctionDefinitionsIntoSingleLine) { 5355 FormatStyle MergeInlineOnly = getLLVMStyle(); 5356 MergeInlineOnly.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Inline; 5357 verifyFormat("class C {\n" 5358 " int f() { return 42; }\n" 5359 "};", 5360 MergeInlineOnly); 5361 verifyFormat("int f() {\n" 5362 " return 42;\n" 5363 "}", 5364 MergeInlineOnly); 5365 } 5366 5367 TEST_F(FormatTest, UnderstandContextOfRecordTypeKeywords) { 5368 // Elaborate type variable declarations. 5369 verifyFormat("struct foo a = {bar};\nint n;"); 5370 verifyFormat("class foo a = {bar};\nint n;"); 5371 verifyFormat("union foo a = {bar};\nint n;"); 5372 5373 // Elaborate types inside function definitions. 5374 verifyFormat("struct foo f() {}\nint n;"); 5375 verifyFormat("class foo f() {}\nint n;"); 5376 verifyFormat("union foo f() {}\nint n;"); 5377 5378 // Templates. 5379 verifyFormat("template <class X> void f() {}\nint n;"); 5380 verifyFormat("template <struct X> void f() {}\nint n;"); 5381 verifyFormat("template <union X> void f() {}\nint n;"); 5382 5383 // Actual definitions... 5384 verifyFormat("struct {\n} n;"); 5385 verifyFormat( 5386 "template <template <class T, class Y>, class Z> class X {\n} n;"); 5387 verifyFormat("union Z {\n int n;\n} x;"); 5388 verifyFormat("class MACRO Z {\n} n;"); 5389 verifyFormat("class MACRO(X) Z {\n} n;"); 5390 verifyFormat("class __attribute__(X) Z {\n} n;"); 5391 verifyFormat("class __declspec(X) Z {\n} n;"); 5392 verifyFormat("class A##B##C {\n} n;"); 5393 verifyFormat("class alignas(16) Z {\n} n;"); 5394 5395 // Redefinition from nested context: 5396 verifyFormat("class A::B::C {\n} n;"); 5397 5398 // Template definitions. 5399 verifyFormat( 5400 "template <typename F>\n" 5401 "Matcher(const Matcher<F> &Other,\n" 5402 " typename enable_if_c<is_base_of<F, T>::value &&\n" 5403 " !is_same<F, T>::value>::type * = 0)\n" 5404 " : Implementation(new ImplicitCastMatcher<F>(Other)) {}"); 5405 5406 // FIXME: This is still incorrectly handled at the formatter side. 5407 verifyFormat("template <> struct X < 15, i<3 && 42 < 50 && 33 < 28> {};"); 5408 5409 // FIXME: 5410 // This now gets parsed incorrectly as class definition. 5411 // verifyFormat("class A<int> f() {\n}\nint n;"); 5412 5413 // Elaborate types where incorrectly parsing the structural element would 5414 // break the indent. 5415 verifyFormat("if (true)\n" 5416 " class X x;\n" 5417 "else\n" 5418 " f();\n"); 5419 5420 // This is simply incomplete. Formatting is not important, but must not crash. 5421 verifyFormat("class A:"); 5422 } 5423 5424 TEST_F(FormatTest, DoNotInterfereWithErrorAndWarning) { 5425 EXPECT_EQ("#error Leave all white!!!!! space* alone!\n", 5426 format("#error Leave all white!!!!! space* alone!\n")); 5427 EXPECT_EQ( 5428 "#warning Leave all white!!!!! space* alone!\n", 5429 format("#warning Leave all white!!!!! space* alone!\n")); 5430 EXPECT_EQ("#error 1", format(" # error 1")); 5431 EXPECT_EQ("#warning 1", format(" # warning 1")); 5432 } 5433 5434 TEST_F(FormatTest, FormatHashIfExpressions) { 5435 verifyFormat("#if AAAA && BBBB"); 5436 // FIXME: Come up with a better indentation for #elif. 5437 verifyFormat( 5438 "#if !defined(AAAAAAA) && (defined CCCCCC || defined DDDDDD) && \\\n" 5439 " defined(BBBBBBBB)\n" 5440 "#elif !defined(AAAAAA) && (defined CCCCC || defined DDDDDD) && \\\n" 5441 " defined(BBBBBBBB)\n" 5442 "#endif", 5443 getLLVMStyleWithColumns(65)); 5444 } 5445 5446 TEST_F(FormatTest, MergeHandlingInTheFaceOfPreprocessorDirectives) { 5447 FormatStyle AllowsMergedIf = getGoogleStyle(); 5448 AllowsMergedIf.AllowShortIfStatementsOnASingleLine = true; 5449 verifyFormat("void f() { f(); }\n#error E", AllowsMergedIf); 5450 verifyFormat("if (true) return 42;\n#error E", AllowsMergedIf); 5451 verifyFormat("if (true)\n#error E\n return 42;", AllowsMergedIf); 5452 EXPECT_EQ("if (true) return 42;", 5453 format("if (true)\nreturn 42;", AllowsMergedIf)); 5454 FormatStyle ShortMergedIf = AllowsMergedIf; 5455 ShortMergedIf.ColumnLimit = 25; 5456 verifyFormat("#define A \\\n" 5457 " if (true) return 42;", 5458 ShortMergedIf); 5459 verifyFormat("#define A \\\n" 5460 " f(); \\\n" 5461 " if (true)\n" 5462 "#define B", 5463 ShortMergedIf); 5464 verifyFormat("#define A \\\n" 5465 " f(); \\\n" 5466 " if (true)\n" 5467 "g();", 5468 ShortMergedIf); 5469 verifyFormat("{\n" 5470 "#ifdef A\n" 5471 " // Comment\n" 5472 " if (true) continue;\n" 5473 "#endif\n" 5474 " // Comment\n" 5475 " if (true) continue;\n" 5476 "}", 5477 ShortMergedIf); 5478 ShortMergedIf.ColumnLimit = 29; 5479 verifyFormat("#define A \\\n" 5480 " if (aaaaaaaaaa) return 1; \\\n" 5481 " return 2;", 5482 ShortMergedIf); 5483 ShortMergedIf.ColumnLimit = 28; 5484 verifyFormat("#define A \\\n" 5485 " if (aaaaaaaaaa) \\\n" 5486 " return 1; \\\n" 5487 " return 2;", 5488 ShortMergedIf); 5489 } 5490 5491 TEST_F(FormatTest, BlockCommentsInControlLoops) { 5492 verifyFormat("if (0) /* a comment in a strange place */ {\n" 5493 " f();\n" 5494 "}"); 5495 verifyFormat("if (0) /* a comment in a strange place */ {\n" 5496 " f();\n" 5497 "} /* another comment */ else /* comment #3 */ {\n" 5498 " g();\n" 5499 "}"); 5500 verifyFormat("while (0) /* a comment in a strange place */ {\n" 5501 " f();\n" 5502 "}"); 5503 verifyFormat("for (;;) /* a comment in a strange place */ {\n" 5504 " f();\n" 5505 "}"); 5506 verifyFormat("do /* a comment in a strange place */ {\n" 5507 " f();\n" 5508 "} /* another comment */ while (0);"); 5509 } 5510 5511 TEST_F(FormatTest, BlockComments) { 5512 EXPECT_EQ("/* */ /* */ /* */\n/* */ /* */ /* */", 5513 format("/* *//* */ /* */\n/* *//* */ /* */")); 5514 EXPECT_EQ("/* */ a /* */ b;", format(" /* */ a/* */ b;")); 5515 EXPECT_EQ("#define A /*123*/ \\\n" 5516 " b\n" 5517 "/* */\n" 5518 "someCall(\n" 5519 " parameter);", 5520 format("#define A /*123*/ b\n" 5521 "/* */\n" 5522 "someCall(parameter);", 5523 getLLVMStyleWithColumns(15))); 5524 5525 EXPECT_EQ("#define A\n" 5526 "/* */ someCall(\n" 5527 " parameter);", 5528 format("#define A\n" 5529 "/* */someCall(parameter);", 5530 getLLVMStyleWithColumns(15))); 5531 EXPECT_EQ("/*\n**\n*/", format("/*\n**\n*/")); 5532 EXPECT_EQ("/*\n" 5533 "*\n" 5534 " * aaaaaa\n" 5535 "*aaaaaa\n" 5536 "*/", 5537 format("/*\n" 5538 "*\n" 5539 " * aaaaaa aaaaaa\n" 5540 "*/", 5541 getLLVMStyleWithColumns(10))); 5542 EXPECT_EQ("/*\n" 5543 "**\n" 5544 "* aaaaaa\n" 5545 "*aaaaaa\n" 5546 "*/", 5547 format("/*\n" 5548 "**\n" 5549 "* aaaaaa aaaaaa\n" 5550 "*/", 5551 getLLVMStyleWithColumns(10))); 5552 5553 FormatStyle NoBinPacking = getLLVMStyle(); 5554 NoBinPacking.BinPackParameters = false; 5555 EXPECT_EQ("someFunction(1, /* comment 1 */\n" 5556 " 2, /* comment 2 */\n" 5557 " 3, /* comment 3 */\n" 5558 " aaaa,\n" 5559 " bbbb);", 5560 format("someFunction (1, /* comment 1 */\n" 5561 " 2, /* comment 2 */ \n" 5562 " 3, /* comment 3 */\n" 5563 "aaaa, bbbb );", 5564 NoBinPacking)); 5565 verifyFormat( 5566 "bool aaaaaaaaaaaaa = /* comment: */ aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 5567 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 5568 EXPECT_EQ( 5569 "bool aaaaaaaaaaaaa = /* trailing comment */\n" 5570 " aaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 5571 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaa;", 5572 format( 5573 "bool aaaaaaaaaaaaa = /* trailing comment */\n" 5574 " aaaaaaaaaaaaaaaaaaaaaaaaaaa||aaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 5575 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa || aaaaaaaaaaaaaaaaaaaaaaaaaa;")); 5576 EXPECT_EQ( 5577 "int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa; /* comment */\n" 5578 "int bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb; /* comment */\n" 5579 "int cccccccccccccccccccccccccccccc; /* comment */\n", 5580 format("int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa; /* comment */\n" 5581 "int bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb; /* comment */\n" 5582 "int cccccccccccccccccccccccccccccc; /* comment */\n")); 5583 5584 verifyFormat("void f(int * /* unused */) {}"); 5585 5586 EXPECT_EQ("/*\n" 5587 " **\n" 5588 " */", 5589 format("/*\n" 5590 " **\n" 5591 " */")); 5592 EXPECT_EQ("/*\n" 5593 " *q\n" 5594 " */", 5595 format("/*\n" 5596 " *q\n" 5597 " */")); 5598 EXPECT_EQ("/*\n" 5599 " * q\n" 5600 " */", 5601 format("/*\n" 5602 " * q\n" 5603 " */")); 5604 EXPECT_EQ("/*\n" 5605 " **/", 5606 format("/*\n" 5607 " **/")); 5608 EXPECT_EQ("/*\n" 5609 " ***/", 5610 format("/*\n" 5611 " ***/")); 5612 } 5613 5614 TEST_F(FormatTest, BlockCommentsInMacros) { 5615 EXPECT_EQ("#define A \\\n" 5616 " { \\\n" 5617 " /* one line */ \\\n" 5618 " someCall();", 5619 format("#define A { \\\n" 5620 " /* one line */ \\\n" 5621 " someCall();", 5622 getLLVMStyleWithColumns(20))); 5623 EXPECT_EQ("#define A \\\n" 5624 " { \\\n" 5625 " /* previous */ \\\n" 5626 " /* one line */ \\\n" 5627 " someCall();", 5628 format("#define A { \\\n" 5629 " /* previous */ \\\n" 5630 " /* one line */ \\\n" 5631 " someCall();", 5632 getLLVMStyleWithColumns(20))); 5633 } 5634 5635 TEST_F(FormatTest, BlockCommentsAtEndOfLine) { 5636 EXPECT_EQ("a = {\n" 5637 " 1111 /* */\n" 5638 "};", 5639 format("a = {1111 /* */\n" 5640 "};", 5641 getLLVMStyleWithColumns(15))); 5642 EXPECT_EQ("a = {\n" 5643 " 1111 /* */\n" 5644 "};", 5645 format("a = {1111 /* */\n" 5646 "};", 5647 getLLVMStyleWithColumns(15))); 5648 5649 // FIXME: The formatting is still wrong here. 5650 EXPECT_EQ("a = {\n" 5651 " 1111 /* a\n" 5652 " */\n" 5653 "};", 5654 format("a = {1111 /* a */\n" 5655 "};", 5656 getLLVMStyleWithColumns(15))); 5657 } 5658 5659 TEST_F(FormatTest, IndentLineCommentsInStartOfBlockAtEndOfFile) { 5660 // FIXME: This is not what we want... 5661 verifyFormat("{\n" 5662 "// a" 5663 "// b"); 5664 } 5665 5666 TEST_F(FormatTest, FormatStarDependingOnContext) { 5667 verifyFormat("void f(int *a);"); 5668 verifyFormat("void f() { f(fint * b); }"); 5669 verifyFormat("class A {\n void f(int *a);\n};"); 5670 verifyFormat("class A {\n int *a;\n};"); 5671 verifyFormat("namespace a {\n" 5672 "namespace b {\n" 5673 "class A {\n" 5674 " void f() {}\n" 5675 " int *a;\n" 5676 "};\n" 5677 "}\n" 5678 "}"); 5679 } 5680 5681 TEST_F(FormatTest, SpecialTokensAtEndOfLine) { 5682 verifyFormat("while"); 5683 verifyFormat("operator"); 5684 } 5685 5686 //===----------------------------------------------------------------------===// 5687 // Objective-C tests. 5688 //===----------------------------------------------------------------------===// 5689 5690 TEST_F(FormatTest, FormatForObjectiveCMethodDecls) { 5691 verifyFormat("- (void)sendAction:(SEL)aSelector to:(BOOL)anObject;"); 5692 EXPECT_EQ("- (NSUInteger)indexOfObject:(id)anObject;", 5693 format("-(NSUInteger)indexOfObject:(id)anObject;")); 5694 EXPECT_EQ("- (NSInteger)Mthod1;", format("-(NSInteger)Mthod1;")); 5695 EXPECT_EQ("+ (id)Mthod2;", format("+(id)Mthod2;")); 5696 EXPECT_EQ("- (NSInteger)Method3:(id)anObject;", 5697 format("-(NSInteger)Method3:(id)anObject;")); 5698 EXPECT_EQ("- (NSInteger)Method4:(id)anObject;", 5699 format("-(NSInteger)Method4:(id)anObject;")); 5700 EXPECT_EQ("- (NSInteger)Method5:(id)anObject:(id)AnotherObject;", 5701 format("-(NSInteger)Method5:(id)anObject:(id)AnotherObject;")); 5702 EXPECT_EQ("- (id)Method6:(id)A:(id)B:(id)C:(id)D;", 5703 format("- (id)Method6:(id)A:(id)B:(id)C:(id)D;")); 5704 EXPECT_EQ( 5705 "- (void)sendAction:(SEL)aSelector to:(id)anObject forAllCells:(BOOL)flag;", 5706 format( 5707 "- (void)sendAction:(SEL)aSelector to:(id)anObject forAllCells:(BOOL)flag;")); 5708 5709 // Very long objectiveC method declaration. 5710 verifyFormat("- (NSUInteger)indexOfObject:(id)anObject\n" 5711 " inRange:(NSRange)range\n" 5712 " outRange:(NSRange)out_range\n" 5713 " outRange1:(NSRange)out_range1\n" 5714 " outRange2:(NSRange)out_range2\n" 5715 " outRange3:(NSRange)out_range3\n" 5716 " outRange4:(NSRange)out_range4\n" 5717 " outRange5:(NSRange)out_range5\n" 5718 " outRange6:(NSRange)out_range6\n" 5719 " outRange7:(NSRange)out_range7\n" 5720 " outRange8:(NSRange)out_range8\n" 5721 " outRange9:(NSRange)out_range9;"); 5722 5723 verifyFormat("- (int)sum:(vector<int>)numbers;"); 5724 verifyGoogleFormat("- (void)setDelegate:(id<Protocol>)delegate;"); 5725 // FIXME: In LLVM style, there should be a space in front of a '<' for ObjC 5726 // protocol lists (but not for template classes): 5727 //verifyFormat("- (void)setDelegate:(id <Protocol>)delegate;"); 5728 5729 verifyFormat("- (int (*)())foo:(int (*)())f;"); 5730 verifyGoogleFormat("- (int (*)())foo:(int (*)())foo;"); 5731 5732 // If there's no return type (very rare in practice!), LLVM and Google style 5733 // agree. 5734 verifyFormat("- foo;"); 5735 verifyFormat("- foo:(int)f;"); 5736 verifyGoogleFormat("- foo:(int)foo;"); 5737 } 5738 5739 TEST_F(FormatTest, FormatObjCInterface) { 5740 verifyFormat("@interface Foo : NSObject <NSSomeDelegate> {\n" 5741 "@public\n" 5742 " int field1;\n" 5743 "@protected\n" 5744 " int field2;\n" 5745 "@private\n" 5746 " int field3;\n" 5747 "@package\n" 5748 " int field4;\n" 5749 "}\n" 5750 "+ (id)init;\n" 5751 "@end"); 5752 5753 verifyGoogleFormat("@interface Foo : NSObject<NSSomeDelegate> {\n" 5754 " @public\n" 5755 " int field1;\n" 5756 " @protected\n" 5757 " int field2;\n" 5758 " @private\n" 5759 " int field3;\n" 5760 " @package\n" 5761 " int field4;\n" 5762 "}\n" 5763 "+ (id)init;\n" 5764 "@end"); 5765 5766 verifyFormat("@interface /* wait for it */ Foo\n" 5767 "+ (id)init;\n" 5768 "// Look, a comment!\n" 5769 "- (int)answerWith:(int)i;\n" 5770 "@end"); 5771 5772 verifyFormat("@interface Foo\n" 5773 "@end\n" 5774 "@interface Bar\n" 5775 "@end"); 5776 5777 verifyFormat("@interface Foo : Bar\n" 5778 "+ (id)init;\n" 5779 "@end"); 5780 5781 verifyFormat("@interface Foo : /**/ Bar /**/ <Baz, /**/ Quux>\n" 5782 "+ (id)init;\n" 5783 "@end"); 5784 5785 verifyGoogleFormat("@interface Foo : Bar<Baz, Quux>\n" 5786 "+ (id)init;\n" 5787 "@end"); 5788 5789 verifyFormat("@interface Foo (HackStuff)\n" 5790 "+ (id)init;\n" 5791 "@end"); 5792 5793 verifyFormat("@interface Foo ()\n" 5794 "+ (id)init;\n" 5795 "@end"); 5796 5797 verifyFormat("@interface Foo (HackStuff) <MyProtocol>\n" 5798 "+ (id)init;\n" 5799 "@end"); 5800 5801 verifyGoogleFormat("@interface Foo (HackStuff)<MyProtocol>\n" 5802 "+ (id)init;\n" 5803 "@end"); 5804 5805 verifyFormat("@interface Foo {\n" 5806 " int _i;\n" 5807 "}\n" 5808 "+ (id)init;\n" 5809 "@end"); 5810 5811 verifyFormat("@interface Foo : Bar {\n" 5812 " int _i;\n" 5813 "}\n" 5814 "+ (id)init;\n" 5815 "@end"); 5816 5817 verifyFormat("@interface Foo : Bar <Baz, Quux> {\n" 5818 " int _i;\n" 5819 "}\n" 5820 "+ (id)init;\n" 5821 "@end"); 5822 5823 verifyFormat("@interface Foo (HackStuff) {\n" 5824 " int _i;\n" 5825 "}\n" 5826 "+ (id)init;\n" 5827 "@end"); 5828 5829 verifyFormat("@interface Foo () {\n" 5830 " int _i;\n" 5831 "}\n" 5832 "+ (id)init;\n" 5833 "@end"); 5834 5835 verifyFormat("@interface Foo (HackStuff) <MyProtocol> {\n" 5836 " int _i;\n" 5837 "}\n" 5838 "+ (id)init;\n" 5839 "@end"); 5840 } 5841 5842 TEST_F(FormatTest, FormatObjCImplementation) { 5843 verifyFormat("@implementation Foo : NSObject {\n" 5844 "@public\n" 5845 " int field1;\n" 5846 "@protected\n" 5847 " int field2;\n" 5848 "@private\n" 5849 " int field3;\n" 5850 "@package\n" 5851 " int field4;\n" 5852 "}\n" 5853 "+ (id)init {\n}\n" 5854 "@end"); 5855 5856 verifyGoogleFormat("@implementation Foo : NSObject {\n" 5857 " @public\n" 5858 " int field1;\n" 5859 " @protected\n" 5860 " int field2;\n" 5861 " @private\n" 5862 " int field3;\n" 5863 " @package\n" 5864 " int field4;\n" 5865 "}\n" 5866 "+ (id)init {\n}\n" 5867 "@end"); 5868 5869 verifyFormat("@implementation Foo\n" 5870 "+ (id)init {\n" 5871 " if (true)\n" 5872 " return nil;\n" 5873 "}\n" 5874 "// Look, a comment!\n" 5875 "- (int)answerWith:(int)i {\n" 5876 " return i;\n" 5877 "}\n" 5878 "+ (int)answerWith:(int)i {\n" 5879 " return i;\n" 5880 "}\n" 5881 "@end"); 5882 5883 verifyFormat("@implementation Foo\n" 5884 "@end\n" 5885 "@implementation Bar\n" 5886 "@end"); 5887 5888 verifyFormat("@implementation Foo : Bar\n" 5889 "+ (id)init {\n}\n" 5890 "- (void)foo {\n}\n" 5891 "@end"); 5892 5893 verifyFormat("@implementation Foo {\n" 5894 " int _i;\n" 5895 "}\n" 5896 "+ (id)init {\n}\n" 5897 "@end"); 5898 5899 verifyFormat("@implementation Foo : Bar {\n" 5900 " int _i;\n" 5901 "}\n" 5902 "+ (id)init {\n}\n" 5903 "@end"); 5904 5905 verifyFormat("@implementation Foo (HackStuff)\n" 5906 "+ (id)init {\n}\n" 5907 "@end"); 5908 verifyFormat("@implementation ObjcClass\n" 5909 "- (void)method;\n" 5910 "{}\n" 5911 "@end"); 5912 } 5913 5914 TEST_F(FormatTest, FormatObjCProtocol) { 5915 verifyFormat("@protocol Foo\n" 5916 "@property(weak) id delegate;\n" 5917 "- (NSUInteger)numberOfThings;\n" 5918 "@end"); 5919 5920 verifyFormat("@protocol MyProtocol <NSObject>\n" 5921 "- (NSUInteger)numberOfThings;\n" 5922 "@end"); 5923 5924 verifyGoogleFormat("@protocol MyProtocol<NSObject>\n" 5925 "- (NSUInteger)numberOfThings;\n" 5926 "@end"); 5927 5928 verifyFormat("@protocol Foo;\n" 5929 "@protocol Bar;\n"); 5930 5931 verifyFormat("@protocol Foo\n" 5932 "@end\n" 5933 "@protocol Bar\n" 5934 "@end"); 5935 5936 verifyFormat("@protocol myProtocol\n" 5937 "- (void)mandatoryWithInt:(int)i;\n" 5938 "@optional\n" 5939 "- (void)optional;\n" 5940 "@required\n" 5941 "- (void)required;\n" 5942 "@optional\n" 5943 "@property(assign) int madProp;\n" 5944 "@end\n"); 5945 5946 verifyFormat("@property(nonatomic, assign, readonly)\n" 5947 " int *looooooooooooooooooooooooooooongNumber;\n" 5948 "@property(nonatomic, assign, readonly)\n" 5949 " NSString *looooooooooooooooooooooooooooongName;"); 5950 5951 verifyFormat("@implementation PR18406\n" 5952 "}\n" 5953 "@end"); 5954 } 5955 5956 TEST_F(FormatTest, FormatObjCMethodDeclarations) { 5957 verifyFormat("- (void)doSomethingWith:(GTMFoo *)theFoo\n" 5958 " rect:(NSRect)theRect\n" 5959 " interval:(float)theInterval {\n" 5960 "}"); 5961 verifyFormat("- (void)shortf:(GTMFoo *)theFoo\n" 5962 " longKeyword:(NSRect)theRect\n" 5963 " evenLongerKeyword:(float)theInterval\n" 5964 " error:(NSError **)theError {\n" 5965 "}"); 5966 } 5967 5968 TEST_F(FormatTest, FormatObjCMethodExpr) { 5969 verifyFormat("[foo bar:baz];"); 5970 verifyFormat("return [foo bar:baz];"); 5971 verifyFormat("f([foo bar:baz]);"); 5972 verifyFormat("f(2, [foo bar:baz]);"); 5973 verifyFormat("f(2, a ? b : c);"); 5974 verifyFormat("[[self initWithInt:4] bar:[baz quux:arrrr]];"); 5975 5976 // Unary operators. 5977 verifyFormat("int a = +[foo bar:baz];"); 5978 verifyFormat("int a = -[foo bar:baz];"); 5979 verifyFormat("int a = ![foo bar:baz];"); 5980 verifyFormat("int a = ~[foo bar:baz];"); 5981 verifyFormat("int a = ++[foo bar:baz];"); 5982 verifyFormat("int a = --[foo bar:baz];"); 5983 verifyFormat("int a = sizeof [foo bar:baz];"); 5984 verifyFormat("int a = alignof [foo bar:baz];", getGoogleStyle()); 5985 verifyFormat("int a = &[foo bar:baz];"); 5986 verifyFormat("int a = *[foo bar:baz];"); 5987 // FIXME: Make casts work, without breaking f()[4]. 5988 //verifyFormat("int a = (int)[foo bar:baz];"); 5989 //verifyFormat("return (int)[foo bar:baz];"); 5990 //verifyFormat("(void)[foo bar:baz];"); 5991 verifyFormat("return (MyType *)[self.tableView cellForRowAtIndexPath:cell];"); 5992 5993 // Binary operators. 5994 verifyFormat("[foo bar:baz], [foo bar:baz];"); 5995 verifyFormat("[foo bar:baz] = [foo bar:baz];"); 5996 verifyFormat("[foo bar:baz] *= [foo bar:baz];"); 5997 verifyFormat("[foo bar:baz] /= [foo bar:baz];"); 5998 verifyFormat("[foo bar:baz] %= [foo bar:baz];"); 5999 verifyFormat("[foo bar:baz] += [foo bar:baz];"); 6000 verifyFormat("[foo bar:baz] -= [foo bar:baz];"); 6001 verifyFormat("[foo bar:baz] <<= [foo bar:baz];"); 6002 verifyFormat("[foo bar:baz] >>= [foo bar:baz];"); 6003 verifyFormat("[foo bar:baz] &= [foo bar:baz];"); 6004 verifyFormat("[foo bar:baz] ^= [foo bar:baz];"); 6005 verifyFormat("[foo bar:baz] |= [foo bar:baz];"); 6006 verifyFormat("[foo bar:baz] ? [foo bar:baz] : [foo bar:baz];"); 6007 verifyFormat("[foo bar:baz] || [foo bar:baz];"); 6008 verifyFormat("[foo bar:baz] && [foo bar:baz];"); 6009 verifyFormat("[foo bar:baz] | [foo bar:baz];"); 6010 verifyFormat("[foo bar:baz] ^ [foo bar:baz];"); 6011 verifyFormat("[foo bar:baz] & [foo bar:baz];"); 6012 verifyFormat("[foo bar:baz] == [foo bar:baz];"); 6013 verifyFormat("[foo bar:baz] != [foo bar:baz];"); 6014 verifyFormat("[foo bar:baz] >= [foo bar:baz];"); 6015 verifyFormat("[foo bar:baz] <= [foo bar:baz];"); 6016 verifyFormat("[foo bar:baz] > [foo bar:baz];"); 6017 verifyFormat("[foo bar:baz] < [foo bar:baz];"); 6018 verifyFormat("[foo bar:baz] >> [foo bar:baz];"); 6019 verifyFormat("[foo bar:baz] << [foo bar:baz];"); 6020 verifyFormat("[foo bar:baz] - [foo bar:baz];"); 6021 verifyFormat("[foo bar:baz] + [foo bar:baz];"); 6022 verifyFormat("[foo bar:baz] * [foo bar:baz];"); 6023 verifyFormat("[foo bar:baz] / [foo bar:baz];"); 6024 verifyFormat("[foo bar:baz] % [foo bar:baz];"); 6025 // Whew! 6026 6027 verifyFormat("return in[42];"); 6028 verifyFormat("for (id foo in [self getStuffFor:bla]) {\n" 6029 "}"); 6030 6031 verifyFormat("[self stuffWithInt:(4 + 2) float:4.5];"); 6032 verifyFormat("[self stuffWithInt:a ? b : c float:4.5];"); 6033 verifyFormat("[self stuffWithInt:a ? [self foo:bar] : c];"); 6034 verifyFormat("[self stuffWithInt:a ? (e ? f : g) : c];"); 6035 verifyFormat("[cond ? obj1 : obj2 methodWithParam:param]"); 6036 verifyFormat("[button setAction:@selector(zoomOut:)];"); 6037 verifyFormat("[color getRed:&r green:&g blue:&b alpha:&a];"); 6038 6039 verifyFormat("arr[[self indexForFoo:a]];"); 6040 verifyFormat("throw [self errorFor:a];"); 6041 verifyFormat("@throw [self errorFor:a];"); 6042 6043 verifyFormat("[(id)foo bar:(id)baz quux:(id)snorf];"); 6044 verifyFormat("[(id)foo bar:(id) ? baz : quux];"); 6045 verifyFormat("4 > 4 ? (id)a : (id)baz;"); 6046 6047 // This tests that the formatter doesn't break after "backing" but before ":", 6048 // which would be at 80 columns. 6049 verifyFormat( 6050 "void f() {\n" 6051 " if ((self = [super initWithContentRect:contentRect\n" 6052 " styleMask:styleMask ?: otherMask\n" 6053 " backing:NSBackingStoreBuffered\n" 6054 " defer:YES]))"); 6055 6056 verifyFormat( 6057 "[foo checkThatBreakingAfterColonWorksOk:\n" 6058 " [bar ifItDoes:reduceOverallLineLengthLikeInThisCase]];"); 6059 6060 verifyFormat("[myObj short:arg1 // Force line break\n" 6061 " longKeyword:arg2 != nil ? arg2 : @\"longKeyword\"\n" 6062 " evenLongerKeyword:arg3 ?: @\"evenLongerKeyword\"\n" 6063 " error:arg4];"); 6064 verifyFormat( 6065 "void f() {\n" 6066 " popup_window_.reset([[RenderWidgetPopupWindow alloc]\n" 6067 " initWithContentRect:NSMakeRect(origin_global.x, origin_global.y,\n" 6068 " pos.width(), pos.height())\n" 6069 " styleMask:NSBorderlessWindowMask\n" 6070 " backing:NSBackingStoreBuffered\n" 6071 " defer:NO]);\n" 6072 "}"); 6073 verifyFormat( 6074 "void f() {\n" 6075 " popup_wdow_.reset([[RenderWidgetPopupWindow alloc]\n" 6076 " iniithContentRect:NSMakRet(origin_global.x, origin_global.y,\n" 6077 " pos.width(), pos.height())\n" 6078 " syeMask:NSBorderlessWindowMask\n" 6079 " bking:NSBackingStoreBuffered\n" 6080 " der:NO]);\n" 6081 "}", 6082 getLLVMStyleWithColumns(70)); 6083 verifyFormat("{\n" 6084 " popup_window_.reset([[RenderWidgetPopupWindow alloc]\n" 6085 " initWithContentRect:NSMakeRect(origin_global.x,\n" 6086 " origin_global.y,\n" 6087 " pos.width(),\n" 6088 " pos.height())\n" 6089 " styleMask:NSBorderlessWindowMask\n" 6090 " backing:NSBackingStoreBuffered\n" 6091 " defer:NO]);\n" 6092 "}", 6093 getChromiumStyle(FormatStyle::LK_Cpp)); 6094 verifyFormat("[contentsContainer replaceSubview:[subviews objectAtIndex:0]\n" 6095 " with:contentsNativeView];"); 6096 6097 verifyFormat( 6098 "[pboard addTypes:[NSArray arrayWithObject:kBookmarkButtonDragType]\n" 6099 " owner:nillllll];"); 6100 6101 verifyFormat( 6102 "[pboard setData:[NSData dataWithBytes:&button length:sizeof(button)]\n" 6103 " forType:kBookmarkButtonDragType];"); 6104 6105 verifyFormat("[defaultCenter addObserver:self\n" 6106 " selector:@selector(willEnterFullscreen)\n" 6107 " name:kWillEnterFullscreenNotification\n" 6108 " object:nil];"); 6109 verifyFormat("[image_rep drawInRect:drawRect\n" 6110 " fromRect:NSZeroRect\n" 6111 " operation:NSCompositeCopy\n" 6112 " fraction:1.0\n" 6113 " respectFlipped:NO\n" 6114 " hints:nil];"); 6115 6116 verifyFormat( 6117 "scoped_nsobject<NSTextField> message(\n" 6118 " // The frame will be fixed up when |-setMessageText:| is called.\n" 6119 " [[NSTextField alloc] initWithFrame:NSMakeRect(0, 0, 0, 0)]);"); 6120 verifyFormat("[self aaaaaa:bbbbbbbbbbbbb\n" 6121 " aaaaaaaaaa:bbbbbbbbbbbbbbbbb\n" 6122 " aaaaa:bbbbbbbbbbb + bbbbbbbbbbbb\n" 6123 " aaaa:bbb];"); 6124 verifyFormat("[self param:function( //\n" 6125 " parameter)]"); 6126 verifyFormat( 6127 "[self aaaaaaaaaa:aaaaaaaaaaaaaaa | aaaaaaaaaaaaaaa | aaaaaaaaaaaaaaa |\n" 6128 " aaaaaaaaaaaaaaa | aaaaaaaaaaaaaaa | aaaaaaaaaaaaaaa |\n" 6129 " aaaaaaaaaaaaaaa | aaaaaaaaaaaaaaa];"); 6130 6131 // Variadic parameters. 6132 verifyFormat( 6133 "NSArray *myStrings = [NSArray stringarray:@\"a\", @\"b\", nil];"); 6134 verifyFormat( 6135 "[self aaaaaaaaaaaaa:aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaa,\n" 6136 " aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaa,\n" 6137 " aaaaaaaaaaaaaaa, aaaaaaaaaaaaaaa];"); 6138 verifyFormat("[self // break\n" 6139 " a:a\n" 6140 " aaa:aaa];"); 6141 verifyFormat("bool a = ([aaaaaaaa aaaaa] == aaaaaaaaaaaaaaaaa ||\n" 6142 " [aaaaaaaa aaaaa] == aaaaaaaaaaaaaaaaaaaa);"); 6143 } 6144 6145 TEST_F(FormatTest, ObjCAt) { 6146 verifyFormat("@autoreleasepool"); 6147 verifyFormat("@catch"); 6148 verifyFormat("@class"); 6149 verifyFormat("@compatibility_alias"); 6150 verifyFormat("@defs"); 6151 verifyFormat("@dynamic"); 6152 verifyFormat("@encode"); 6153 verifyFormat("@end"); 6154 verifyFormat("@finally"); 6155 verifyFormat("@implementation"); 6156 verifyFormat("@import"); 6157 verifyFormat("@interface"); 6158 verifyFormat("@optional"); 6159 verifyFormat("@package"); 6160 verifyFormat("@private"); 6161 verifyFormat("@property"); 6162 verifyFormat("@protected"); 6163 verifyFormat("@protocol"); 6164 verifyFormat("@public"); 6165 verifyFormat("@required"); 6166 verifyFormat("@selector"); 6167 verifyFormat("@synchronized"); 6168 verifyFormat("@synthesize"); 6169 verifyFormat("@throw"); 6170 verifyFormat("@try"); 6171 6172 EXPECT_EQ("@interface", format("@ interface")); 6173 6174 // The precise formatting of this doesn't matter, nobody writes code like 6175 // this. 6176 verifyFormat("@ /*foo*/ interface"); 6177 } 6178 6179 TEST_F(FormatTest, ObjCSnippets) { 6180 verifyFormat("@autoreleasepool {\n" 6181 " foo();\n" 6182 "}"); 6183 verifyFormat("@class Foo, Bar;"); 6184 verifyFormat("@compatibility_alias AliasName ExistingClass;"); 6185 verifyFormat("@dynamic textColor;"); 6186 verifyFormat("char *buf1 = @encode(int *);"); 6187 verifyFormat("char *buf1 = @encode(typeof(4 * 5));"); 6188 verifyFormat("char *buf1 = @encode(int **);"); 6189 verifyFormat("Protocol *proto = @protocol(p1);"); 6190 verifyFormat("SEL s = @selector(foo:);"); 6191 verifyFormat("@synchronized(self) {\n" 6192 " f();\n" 6193 "}"); 6194 6195 verifyFormat("@synthesize dropArrowPosition = dropArrowPosition_;"); 6196 verifyGoogleFormat("@synthesize dropArrowPosition = dropArrowPosition_;"); 6197 6198 verifyFormat("@property(assign, nonatomic) CGFloat hoverAlpha;"); 6199 verifyFormat("@property(assign, getter=isEditable) BOOL editable;"); 6200 verifyGoogleFormat("@property(assign, getter=isEditable) BOOL editable;"); 6201 verifyFormat("@property (assign, getter=isEditable) BOOL editable;", 6202 getMozillaStyle()); 6203 verifyFormat("@property BOOL editable;", getMozillaStyle()); 6204 verifyFormat("@property (assign, getter=isEditable) BOOL editable;", 6205 getWebKitStyle()); 6206 verifyFormat("@property BOOL editable;", getWebKitStyle()); 6207 6208 verifyFormat("@import foo.bar;\n" 6209 "@import baz;"); 6210 } 6211 6212 TEST_F(FormatTest, ObjCLiterals) { 6213 verifyFormat("@\"String\""); 6214 verifyFormat("@1"); 6215 verifyFormat("@+4.8"); 6216 verifyFormat("@-4"); 6217 verifyFormat("@1LL"); 6218 verifyFormat("@.5"); 6219 verifyFormat("@'c'"); 6220 verifyFormat("@true"); 6221 6222 verifyFormat("NSNumber *smallestInt = @(-INT_MAX - 1);"); 6223 verifyFormat("NSNumber *piOverTwo = @(M_PI / 2);"); 6224 verifyFormat("NSNumber *favoriteColor = @(Green);"); 6225 verifyFormat("NSString *path = @(getenv(\"PATH\"));"); 6226 6227 verifyFormat("[dictionary setObject:@(1) forKey:@\"number\"];"); 6228 } 6229 6230 TEST_F(FormatTest, ObjCDictLiterals) { 6231 verifyFormat("@{"); 6232 verifyFormat("@{}"); 6233 verifyFormat("@{@\"one\" : @1}"); 6234 verifyFormat("return @{@\"one\" : @1;"); 6235 verifyFormat("@{@\"one\" : @1}"); 6236 6237 verifyFormat("@{@\"one\" : @{@2 : @1}}"); 6238 verifyFormat("@{\n" 6239 " @\"one\" : @{@2 : @1},\n" 6240 "}"); 6241 6242 verifyFormat("@{1 > 2 ? @\"one\" : @\"two\" : 1 > 2 ? @1 : @2}"); 6243 verifyFormat("[self setDict:@{}"); 6244 verifyFormat("[self setDict:@{@1 : @2}"); 6245 verifyFormat("NSLog(@\"%@\", @{@1 : @2, @2 : @3}[@1]);"); 6246 verifyFormat( 6247 "NSDictionary *masses = @{@\"H\" : @1.0078, @\"He\" : @4.0026};"); 6248 verifyFormat( 6249 "NSDictionary *settings = @{AVEncoderKey : @(AVAudioQualityMax)};"); 6250 6251 verifyFormat( 6252 "NSDictionary *d = @{\n" 6253 " @\"nam\" : NSUserNam(),\n" 6254 " @\"dte\" : [NSDate date],\n" 6255 " @\"processInfo\" : [NSProcessInfo processInfo]\n" 6256 "};"); 6257 verifyFormat( 6258 "@{\n" 6259 " NSFontAttributeNameeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee : " 6260 "regularFont,\n" 6261 "};"); 6262 verifyGoogleFormat( 6263 "@{\n" 6264 " NSFontAttributeNameeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee : " 6265 "regularFont,\n" 6266 "};"); 6267 verifyFormat( 6268 "@{\n" 6269 " NSFontAttributeNameeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee :\n" 6270 " reeeeeeeeeeeeeeeeeeeeeeeegularFont,\n" 6271 "};"); 6272 6273 // We should try to be robust in case someone forgets the "@". 6274 verifyFormat( 6275 "NSDictionary *d = {\n" 6276 " @\"nam\" : NSUserNam(),\n" 6277 " @\"dte\" : [NSDate date],\n" 6278 " @\"processInfo\" : [NSProcessInfo processInfo]\n" 6279 "};"); 6280 } 6281 6282 TEST_F(FormatTest, ObjCArrayLiterals) { 6283 verifyFormat("@["); 6284 verifyFormat("@[]"); 6285 verifyFormat( 6286 "NSArray *array = @[ @\" Hey \", NSApp, [NSNumber numberWithInt:42] ];"); 6287 verifyFormat("return @[ @3, @[], @[ @4, @5 ] ];"); 6288 verifyFormat("NSArray *array = @[ [foo description] ];"); 6289 6290 verifyFormat( 6291 "NSArray *some_variable = @[\n" 6292 " aaaa == bbbbbbbbbbb ? @\"aaaaaaaaaaaa\" : @\"aaaaaaaaaaaaaa\",\n" 6293 " @\"aaaaaaaaaaaaaaaaa\",\n" 6294 " @\"aaaaaaaaaaaaaaaaa\",\n" 6295 " @\"aaaaaaaaaaaaaaaaa\"\n" 6296 "];"); 6297 verifyFormat("NSArray *some_variable = @[\n" 6298 " @\"aaaaaaaaaaaaaaaaa\",\n" 6299 " @\"aaaaaaaaaaaaaaaaa\",\n" 6300 " @\"aaaaaaaaaaaaaaaaa\",\n" 6301 " @\"aaaaaaaaaaaaaaaaa\",\n" 6302 "];"); 6303 verifyGoogleFormat("NSArray *some_variable = @[\n" 6304 " @\"aaaaaaaaaaaaaaaaa\",\n" 6305 " @\"aaaaaaaaaaaaaaaaa\",\n" 6306 " @\"aaaaaaaaaaaaaaaaa\",\n" 6307 " @\"aaaaaaaaaaaaaaaaa\"\n" 6308 "];"); 6309 6310 // We should try to be robust in case someone forgets the "@". 6311 verifyFormat("NSArray *some_variable = [\n" 6312 " @\"aaaaaaaaaaaaaaaaa\",\n" 6313 " @\"aaaaaaaaaaaaaaaaa\",\n" 6314 " @\"aaaaaaaaaaaaaaaaa\",\n" 6315 " @\"aaaaaaaaaaaaaaaaa\",\n" 6316 "];"); 6317 verifyFormat( 6318 "- (NSAttributedString *)attributedStringForSegment:(NSUInteger)segment\n" 6319 " index:(NSUInteger)index\n" 6320 " nonDigitAttributes:\n" 6321 " (NSDictionary *)noDigitAttributes;"); 6322 verifyFormat( 6323 "[someFunction someLooooooooooooongParameter:\n" 6324 " @[ NSBundle.mainBundle.infoDictionary[@\"a\"] ]];"); 6325 } 6326 6327 TEST_F(FormatTest, ReformatRegionAdjustsIndent) { 6328 EXPECT_EQ("{\n" 6329 "{\n" 6330 "a;\n" 6331 "b;\n" 6332 "}\n" 6333 "}", 6334 format("{\n" 6335 "{\n" 6336 "a;\n" 6337 " b;\n" 6338 "}\n" 6339 "}", 6340 13, 2, getLLVMStyle())); 6341 EXPECT_EQ("{\n" 6342 "{\n" 6343 " a;\n" 6344 "b;\n" 6345 "}\n" 6346 "}", 6347 format("{\n" 6348 "{\n" 6349 " a;\n" 6350 "b;\n" 6351 "}\n" 6352 "}", 6353 9, 2, getLLVMStyle())); 6354 EXPECT_EQ("{\n" 6355 "{\n" 6356 "public:\n" 6357 " b;\n" 6358 "}\n" 6359 "}", 6360 format("{\n" 6361 "{\n" 6362 "public:\n" 6363 " b;\n" 6364 "}\n" 6365 "}", 6366 17, 2, getLLVMStyle())); 6367 EXPECT_EQ("{\n" 6368 "{\n" 6369 "a;\n" 6370 "}\n" 6371 "{\n" 6372 " b; //\n" 6373 "}\n" 6374 "}", 6375 format("{\n" 6376 "{\n" 6377 "a;\n" 6378 "}\n" 6379 "{\n" 6380 " b; //\n" 6381 "}\n" 6382 "}", 6383 22, 2, getLLVMStyle())); 6384 EXPECT_EQ(" {\n" 6385 " a; //\n" 6386 " }", 6387 format(" {\n" 6388 "a; //\n" 6389 " }", 6390 4, 2, getLLVMStyle())); 6391 EXPECT_EQ("void f() {}\n" 6392 "void g() {}", 6393 format("void f() {}\n" 6394 "void g() {}", 6395 13, 0, getLLVMStyle())); 6396 EXPECT_EQ("int a; // comment\n" 6397 " // line 2\n" 6398 "int b;", 6399 format("int a; // comment\n" 6400 " // line 2\n" 6401 " int b;", 6402 35, 0, getLLVMStyle())); 6403 EXPECT_EQ(" int a;\n" 6404 " void\n" 6405 " ffffff() {\n" 6406 " }", 6407 format(" int a;\n" 6408 "void ffffff() {}", 6409 11, 0, getLLVMStyleWithColumns(11))); 6410 6411 EXPECT_EQ(" void f() {\n" 6412 "#define A 1\n" 6413 " }", 6414 format(" void f() {\n" 6415 " #define A 1\n" // Format this line. 6416 " }", 6417 20, 0, getLLVMStyle())); 6418 EXPECT_EQ(" void f() {\n" 6419 " int i;\n" 6420 "#define A \\\n" 6421 " int i; \\\n" 6422 " int j;\n" 6423 " int k;\n" 6424 " }", 6425 format(" void f() {\n" 6426 " int i;\n" 6427 "#define A \\\n" 6428 " int i; \\\n" 6429 " int j;\n" 6430 " int k;\n" // Format this line. 6431 " }", 6432 67, 0, getLLVMStyle())); 6433 } 6434 6435 TEST_F(FormatTest, BreaksStringLiterals) { 6436 EXPECT_EQ("\"some text \"\n" 6437 "\"other\";", 6438 format("\"some text other\";", getLLVMStyleWithColumns(12))); 6439 EXPECT_EQ("\"some text \"\n" 6440 "\"other\";", 6441 format("\\\n\"some text other\";", getLLVMStyleWithColumns(12))); 6442 EXPECT_EQ( 6443 "#define A \\\n" 6444 " \"some \" \\\n" 6445 " \"text \" \\\n" 6446 " \"other\";", 6447 format("#define A \"some text other\";", getLLVMStyleWithColumns(12))); 6448 EXPECT_EQ( 6449 "#define A \\\n" 6450 " \"so \" \\\n" 6451 " \"text \" \\\n" 6452 " \"other\";", 6453 format("#define A \"so text other\";", getLLVMStyleWithColumns(12))); 6454 6455 EXPECT_EQ("\"some text\"", 6456 format("\"some text\"", getLLVMStyleWithColumns(1))); 6457 EXPECT_EQ("\"some text\"", 6458 format("\"some text\"", getLLVMStyleWithColumns(11))); 6459 EXPECT_EQ("\"some \"\n" 6460 "\"text\"", 6461 format("\"some text\"", getLLVMStyleWithColumns(10))); 6462 EXPECT_EQ("\"some \"\n" 6463 "\"text\"", 6464 format("\"some text\"", getLLVMStyleWithColumns(7))); 6465 EXPECT_EQ("\"some\"\n" 6466 "\" tex\"\n" 6467 "\"t\"", 6468 format("\"some text\"", getLLVMStyleWithColumns(6))); 6469 EXPECT_EQ("\"some\"\n" 6470 "\" tex\"\n" 6471 "\" and\"", 6472 format("\"some tex and\"", getLLVMStyleWithColumns(6))); 6473 EXPECT_EQ("\"some\"\n" 6474 "\"/tex\"\n" 6475 "\"/and\"", 6476 format("\"some/tex/and\"", getLLVMStyleWithColumns(6))); 6477 6478 EXPECT_EQ("variable =\n" 6479 " \"long string \"\n" 6480 " \"literal\";", 6481 format("variable = \"long string literal\";", 6482 getLLVMStyleWithColumns(20))); 6483 6484 EXPECT_EQ("variable = f(\n" 6485 " \"long string \"\n" 6486 " \"literal\",\n" 6487 " short,\n" 6488 " loooooooooooooooooooong);", 6489 format("variable = f(\"long string literal\", short, " 6490 "loooooooooooooooooooong);", 6491 getLLVMStyleWithColumns(20))); 6492 6493 EXPECT_EQ("f(g(\"long string \"\n" 6494 " \"literal\"),\n" 6495 " b);", 6496 format("f(g(\"long string literal\"), b);", 6497 getLLVMStyleWithColumns(20))); 6498 EXPECT_EQ("f(g(\"long string \"\n" 6499 " \"literal\",\n" 6500 " a),\n" 6501 " b);", 6502 format("f(g(\"long string literal\", a), b);", 6503 getLLVMStyleWithColumns(20))); 6504 EXPECT_EQ( 6505 "f(\"one two\".split(\n" 6506 " variable));", 6507 format("f(\"one two\".split(variable));", getLLVMStyleWithColumns(20))); 6508 EXPECT_EQ("f(\"one two three four five six \"\n" 6509 " \"seven\".split(\n" 6510 " really_looooong_variable));", 6511 format("f(\"one two three four five six seven\"." 6512 "split(really_looooong_variable));", 6513 getLLVMStyleWithColumns(33))); 6514 6515 EXPECT_EQ("f(\"some \"\n" 6516 " \"text\",\n" 6517 " other);", 6518 format("f(\"some text\", other);", getLLVMStyleWithColumns(10))); 6519 6520 // Only break as a last resort. 6521 verifyFormat( 6522 "aaaaaaaaaaaaaaaaaaaa(\n" 6523 " aaaaaaaaaaaaaaaaaaaa,\n" 6524 " aaaaaa(\"aaa aaaaa aaa aaa aaaaa aaa aaaaa aaa aaa aaaaaa\"));"); 6525 6526 EXPECT_EQ( 6527 "\"splitmea\"\n" 6528 "\"trandomp\"\n" 6529 "\"oint\"", 6530 format("\"splitmeatrandompoint\"", getLLVMStyleWithColumns(10))); 6531 6532 EXPECT_EQ( 6533 "\"split/\"\n" 6534 "\"pathat/\"\n" 6535 "\"slashes\"", 6536 format("\"split/pathat/slashes\"", getLLVMStyleWithColumns(10))); 6537 6538 EXPECT_EQ( 6539 "\"split/\"\n" 6540 "\"pathat/\"\n" 6541 "\"slashes\"", 6542 format("\"split/pathat/slashes\"", getLLVMStyleWithColumns(10))); 6543 EXPECT_EQ("\"split at \"\n" 6544 "\"spaces/at/\"\n" 6545 "\"slashes.at.any$\"\n" 6546 "\"non-alphanumeric%\"\n" 6547 "\"1111111111characte\"\n" 6548 "\"rs\"", 6549 format("\"split at " 6550 "spaces/at/" 6551 "slashes.at." 6552 "any$non-" 6553 "alphanumeric%" 6554 "1111111111characte" 6555 "rs\"", 6556 getLLVMStyleWithColumns(20))); 6557 6558 // Verify that splitting the strings understands 6559 // Style::AlwaysBreakBeforeMultilineStrings. 6560 EXPECT_EQ("aaaaaaaaaaaa(aaaaaaaaaaaaa,\n" 6561 " \"aaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaa \"\n" 6562 " \"aaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaa\");", 6563 format("aaaaaaaaaaaa(aaaaaaaaaaaaa, \"aaaaaaaaaaaaaaaaaaaaaa " 6564 "aaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaa " 6565 "aaaaaaaaaaaaaaaaaaaaaa\");", 6566 getGoogleStyle())); 6567 EXPECT_EQ("return \"aaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaa \"\n" 6568 " \"aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaa\";", 6569 format("return \"aaaaaaaaaaaaaaaaaaaaaa " 6570 "aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaa " 6571 "aaaaaaaaaaaaaaaaaaaaaa\";", 6572 getGoogleStyle())); 6573 EXPECT_EQ("llvm::outs() << \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa \"\n" 6574 " \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\";", 6575 format("llvm::outs() << " 6576 "\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaa" 6577 "aaaaaaaaaaaaaaaaaaa\";")); 6578 EXPECT_EQ("ffff(\n" 6579 " {\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa \"\n" 6580 " \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"});", 6581 format("ffff({\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa " 6582 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"});", 6583 getGoogleStyle())); 6584 6585 FormatStyle AlignLeft = getLLVMStyleWithColumns(12); 6586 AlignLeft.AlignEscapedNewlinesLeft = true; 6587 EXPECT_EQ( 6588 "#define A \\\n" 6589 " \"some \" \\\n" 6590 " \"text \" \\\n" 6591 " \"other\";", 6592 format("#define A \"some text other\";", AlignLeft)); 6593 } 6594 6595 TEST_F(FormatTest, BreaksStringLiteralsWithTabs) { 6596 EXPECT_EQ( 6597 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" 6598 "(\n" 6599 " \"x\t\");", 6600 format("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" 6601 "aaaaaaa(" 6602 "\"x\t\");")); 6603 } 6604 6605 TEST_F(FormatTest, BreaksWideAndNSStringLiterals) { 6606 EXPECT_EQ( 6607 "u8\"utf8 string \"\n" 6608 "u8\"literal\";", 6609 format("u8\"utf8 string literal\";", getGoogleStyleWithColumns(16))); 6610 EXPECT_EQ( 6611 "u\"utf16 string \"\n" 6612 "u\"literal\";", 6613 format("u\"utf16 string literal\";", getGoogleStyleWithColumns(16))); 6614 EXPECT_EQ( 6615 "U\"utf32 string \"\n" 6616 "U\"literal\";", 6617 format("U\"utf32 string literal\";", getGoogleStyleWithColumns(16))); 6618 EXPECT_EQ("L\"wide string \"\n" 6619 "L\"literal\";", 6620 format("L\"wide string literal\";", getGoogleStyleWithColumns(16))); 6621 EXPECT_EQ("@\"NSString \"\n" 6622 "@\"literal\";", 6623 format("@\"NSString literal\";", getGoogleStyleWithColumns(19))); 6624 } 6625 6626 TEST_F(FormatTest, BreaksRawStringLiterals) { 6627 EXPECT_EQ("R\"x(raw )x\"\n" 6628 "R\"x(literal)x\";", 6629 format("R\"x(raw literal)x\";", getGoogleStyleWithColumns(15))); 6630 EXPECT_EQ("uR\"x(raw )x\"\n" 6631 "uR\"x(literal)x\";", 6632 format("uR\"x(raw literal)x\";", getGoogleStyleWithColumns(16))); 6633 EXPECT_EQ("u8R\"x(raw )x\"\n" 6634 "u8R\"x(literal)x\";", 6635 format("u8R\"x(raw literal)x\";", getGoogleStyleWithColumns(17))); 6636 EXPECT_EQ("LR\"x(raw )x\"\n" 6637 "LR\"x(literal)x\";", 6638 format("LR\"x(raw literal)x\";", getGoogleStyleWithColumns(16))); 6639 EXPECT_EQ("UR\"x(raw )x\"\n" 6640 "UR\"x(literal)x\";", 6641 format("UR\"x(raw literal)x\";", getGoogleStyleWithColumns(16))); 6642 } 6643 6644 TEST_F(FormatTest, BreaksStringLiteralsWithin_TMacro) { 6645 FormatStyle Style = getLLVMStyleWithColumns(20); 6646 EXPECT_EQ( 6647 "_T(\"aaaaaaaaaaaaaa\")\n" 6648 "_T(\"aaaaaaaaaaaaaa\")\n" 6649 "_T(\"aaaaaaaaaaaa\")", 6650 format(" _T(\"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\")", Style)); 6651 EXPECT_EQ("f(x, _T(\"aaaaaaaaa\")\n" 6652 " _T(\"aaaaaa\"),\n" 6653 " z);", 6654 format("f(x, _T(\"aaaaaaaaaaaaaaa\"), z);", Style)); 6655 6656 // FIXME: Handle embedded spaces in one iteration. 6657 // EXPECT_EQ("_T(\"aaaaaaaaaaaaa\")\n" 6658 // "_T(\"aaaaaaaaaaaaa\")\n" 6659 // "_T(\"aaaaaaaaaaaaa\")\n" 6660 // "_T(\"a\")", 6661 // format(" _T ( \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\" )", 6662 // getLLVMStyleWithColumns(20))); 6663 EXPECT_EQ( 6664 "_T ( \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\" )", 6665 format(" _T ( \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\" )", Style)); 6666 } 6667 6668 TEST_F(FormatTest, DontSplitStringLiteralsWithEscapedNewlines) { 6669 EXPECT_EQ( 6670 "aaaaaaaaaaa = \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 6671 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 6672 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\";", 6673 format("aaaaaaaaaaa = \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 6674 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\\n" 6675 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\";")); 6676 } 6677 6678 TEST_F(FormatTest, CountsCharactersInMultilineRawStringLiterals) { 6679 EXPECT_EQ("f(g(R\"x(raw literal)x\", a), b);", 6680 format("f(g(R\"x(raw literal)x\", a), b);", getGoogleStyle())); 6681 EXPECT_EQ("fffffffffff(g(R\"x(\n" 6682 "multiline raw string literal xxxxxxxxxxxxxx\n" 6683 ")x\",\n" 6684 " a),\n" 6685 " b);", 6686 format("fffffffffff(g(R\"x(\n" 6687 "multiline raw string literal xxxxxxxxxxxxxx\n" 6688 ")x\", a), b);", 6689 getGoogleStyleWithColumns(20))); 6690 EXPECT_EQ("fffffffffff(\n" 6691 " g(R\"x(qqq\n" 6692 "multiline raw string literal xxxxxxxxxxxxxx\n" 6693 ")x\",\n" 6694 " a),\n" 6695 " b);", 6696 format("fffffffffff(g(R\"x(qqq\n" 6697 "multiline raw string literal xxxxxxxxxxxxxx\n" 6698 ")x\", a), b);", 6699 getGoogleStyleWithColumns(20))); 6700 6701 EXPECT_EQ("fffffffffff(R\"x(\n" 6702 "multiline raw string literal xxxxxxxxxxxxxx\n" 6703 ")x\");", 6704 format("fffffffffff(R\"x(\n" 6705 "multiline raw string literal xxxxxxxxxxxxxx\n" 6706 ")x\");", 6707 getGoogleStyleWithColumns(20))); 6708 EXPECT_EQ("fffffffffff(R\"x(\n" 6709 "multiline raw string literal xxxxxxxxxxxxxx\n" 6710 ")x\" + bbbbbb);", 6711 format("fffffffffff(R\"x(\n" 6712 "multiline raw string literal xxxxxxxxxxxxxx\n" 6713 ")x\" + bbbbbb);", 6714 getGoogleStyleWithColumns(20))); 6715 EXPECT_EQ("fffffffffff(\n" 6716 " R\"x(\n" 6717 "multiline raw string literal xxxxxxxxxxxxxx\n" 6718 ")x\" +\n" 6719 " bbbbbb);", 6720 format("fffffffffff(\n" 6721 " R\"x(\n" 6722 "multiline raw string literal xxxxxxxxxxxxxx\n" 6723 ")x\" + bbbbbb);", 6724 getGoogleStyleWithColumns(20))); 6725 } 6726 6727 TEST_F(FormatTest, SkipsUnknownStringLiterals) { 6728 verifyFormat("string a = \"unterminated;"); 6729 EXPECT_EQ("function(\"unterminated,\n" 6730 " OtherParameter);", 6731 format("function( \"unterminated,\n" 6732 " OtherParameter);")); 6733 } 6734 6735 TEST_F(FormatTest, DoesNotTryToParseUDLiteralsInPreCpp11Code) { 6736 FormatStyle Style = getLLVMStyle(); 6737 Style.Standard = FormatStyle::LS_Cpp03; 6738 EXPECT_EQ("#define x(_a) printf(\"foo\" _a);", 6739 format("#define x(_a) printf(\"foo\"_a);", Style)); 6740 } 6741 6742 TEST_F(FormatTest, UnderstandsCpp1y) { 6743 verifyFormat("int bi{1'000'000};"); 6744 } 6745 6746 TEST_F(FormatTest, BreakStringLiteralsBeforeUnbreakableTokenSequence) { 6747 EXPECT_EQ("someFunction(\"aaabbbcccd\"\n" 6748 " \"ddeeefff\");", 6749 format("someFunction(\"aaabbbcccdddeeefff\");", 6750 getLLVMStyleWithColumns(25))); 6751 EXPECT_EQ("someFunction1234567890(\n" 6752 " \"aaabbbcccdddeeefff\");", 6753 format("someFunction1234567890(\"aaabbbcccdddeeefff\");", 6754 getLLVMStyleWithColumns(26))); 6755 EXPECT_EQ("someFunction1234567890(\n" 6756 " \"aaabbbcccdddeeeff\"\n" 6757 " \"f\");", 6758 format("someFunction1234567890(\"aaabbbcccdddeeefff\");", 6759 getLLVMStyleWithColumns(25))); 6760 EXPECT_EQ("someFunction1234567890(\n" 6761 " \"aaabbbcccdddeeeff\"\n" 6762 " \"f\");", 6763 format("someFunction1234567890(\"aaabbbcccdddeeefff\");", 6764 getLLVMStyleWithColumns(24))); 6765 EXPECT_EQ("someFunction(\"aaabbbcc \"\n" 6766 " \"ddde \"\n" 6767 " \"efff\");", 6768 format("someFunction(\"aaabbbcc ddde efff\");", 6769 getLLVMStyleWithColumns(25))); 6770 EXPECT_EQ("someFunction(\"aaabbbccc \"\n" 6771 " \"ddeeefff\");", 6772 format("someFunction(\"aaabbbccc ddeeefff\");", 6773 getLLVMStyleWithColumns(25))); 6774 EXPECT_EQ("someFunction1234567890(\n" 6775 " \"aaabb \"\n" 6776 " \"cccdddeeefff\");", 6777 format("someFunction1234567890(\"aaabb cccdddeeefff\");", 6778 getLLVMStyleWithColumns(25))); 6779 EXPECT_EQ("#define A \\\n" 6780 " string s = \\\n" 6781 " \"123456789\" \\\n" 6782 " \"0\"; \\\n" 6783 " int i;", 6784 format("#define A string s = \"1234567890\"; int i;", 6785 getLLVMStyleWithColumns(20))); 6786 // FIXME: Put additional penalties on breaking at non-whitespace locations. 6787 EXPECT_EQ("someFunction(\"aaabbbcc \"\n" 6788 " \"dddeeeff\"\n" 6789 " \"f\");", 6790 format("someFunction(\"aaabbbcc dddeeefff\");", 6791 getLLVMStyleWithColumns(25))); 6792 } 6793 6794 TEST_F(FormatTest, DoNotBreakStringLiteralsInEscapeSequence) { 6795 EXPECT_EQ("\"\\a\"", 6796 format("\"\\a\"", getLLVMStyleWithColumns(3))); 6797 EXPECT_EQ("\"\\\"", 6798 format("\"\\\"", getLLVMStyleWithColumns(2))); 6799 EXPECT_EQ("\"test\"\n" 6800 "\"\\n\"", 6801 format("\"test\\n\"", getLLVMStyleWithColumns(7))); 6802 EXPECT_EQ("\"tes\\\\\"\n" 6803 "\"n\"", 6804 format("\"tes\\\\n\"", getLLVMStyleWithColumns(7))); 6805 EXPECT_EQ("\"\\\\\\\\\"\n" 6806 "\"\\n\"", 6807 format("\"\\\\\\\\\\n\"", getLLVMStyleWithColumns(7))); 6808 EXPECT_EQ("\"\\uff01\"", 6809 format("\"\\uff01\"", getLLVMStyleWithColumns(7))); 6810 EXPECT_EQ("\"\\uff01\"\n" 6811 "\"test\"", 6812 format("\"\\uff01test\"", getLLVMStyleWithColumns(8))); 6813 EXPECT_EQ("\"\\Uff01ff02\"", 6814 format("\"\\Uff01ff02\"", getLLVMStyleWithColumns(11))); 6815 EXPECT_EQ("\"\\x000000000001\"\n" 6816 "\"next\"", 6817 format("\"\\x000000000001next\"", getLLVMStyleWithColumns(16))); 6818 EXPECT_EQ("\"\\x000000000001next\"", 6819 format("\"\\x000000000001next\"", getLLVMStyleWithColumns(15))); 6820 EXPECT_EQ("\"\\x000000000001\"", 6821 format("\"\\x000000000001\"", getLLVMStyleWithColumns(7))); 6822 EXPECT_EQ("\"test\"\n" 6823 "\"\\000000\"\n" 6824 "\"000001\"", 6825 format("\"test\\000000000001\"", getLLVMStyleWithColumns(9))); 6826 EXPECT_EQ("\"test\\000\"\n" 6827 "\"00000000\"\n" 6828 "\"1\"", 6829 format("\"test\\000000000001\"", getLLVMStyleWithColumns(10))); 6830 // FIXME: We probably don't need to care about escape sequences in raw 6831 // literals. 6832 EXPECT_EQ("R\"(\\x)\"\n" 6833 "R\"(\\x00)\"\n", 6834 format("R\"(\\x\\x00)\"\n", getGoogleStyleWithColumns(7))); 6835 } 6836 6837 TEST_F(FormatTest, DoNotCreateUnreasonableUnwrappedLines) { 6838 verifyFormat("void f() {\n" 6839 " return g() {}\n" 6840 " void h() {}"); 6841 verifyFormat("int a[] = {void forgot_closing_brace() {f();\n" 6842 "g();\n" 6843 "}"); 6844 } 6845 6846 TEST_F(FormatTest, DoNotPrematurelyEndUnwrappedLineForReturnStatements) { 6847 verifyFormat( 6848 "void f() {\n" 6849 " return C{param1, param2}.SomeCall(param1, param2);\n" 6850 "}\n"); 6851 } 6852 6853 TEST_F(FormatTest, FormatsClosingBracesInEmptyNestedBlocks) { 6854 verifyFormat("class X {\n" 6855 " void f() {\n" 6856 " }\n" 6857 "};", 6858 getLLVMStyleWithColumns(12)); 6859 } 6860 6861 TEST_F(FormatTest, ConfigurableIndentWidth) { 6862 FormatStyle EightIndent = getLLVMStyleWithColumns(18); 6863 EightIndent.IndentWidth = 8; 6864 EightIndent.ContinuationIndentWidth = 8; 6865 verifyFormat("void f() {\n" 6866 " someFunction();\n" 6867 " if (true) {\n" 6868 " f();\n" 6869 " }\n" 6870 "}", 6871 EightIndent); 6872 verifyFormat("class X {\n" 6873 " void f() {\n" 6874 " }\n" 6875 "};", 6876 EightIndent); 6877 verifyFormat("int x[] = {\n" 6878 " call(),\n" 6879 " call()};", 6880 EightIndent); 6881 } 6882 6883 TEST_F(FormatTest, ConfigurableFunctionDeclarationIndentAfterType) { 6884 verifyFormat("void\n" 6885 "f();", 6886 getLLVMStyleWithColumns(8)); 6887 } 6888 6889 TEST_F(FormatTest, ConfigurableUseOfTab) { 6890 FormatStyle Tab = getLLVMStyleWithColumns(42); 6891 Tab.IndentWidth = 8; 6892 Tab.UseTab = FormatStyle::UT_Always; 6893 Tab.AlignEscapedNewlinesLeft = true; 6894 6895 EXPECT_EQ("if (aaaaaaaa && // q\n" 6896 " bb)\t\t// w\n" 6897 "\t;", 6898 format("if (aaaaaaaa &&// q\n" 6899 "bb)// w\n" 6900 ";", 6901 Tab)); 6902 EXPECT_EQ("if (aaa && bbb) // w\n" 6903 "\t;", 6904 format("if(aaa&&bbb)// w\n" 6905 ";", 6906 Tab)); 6907 6908 verifyFormat("class X {\n" 6909 "\tvoid f() {\n" 6910 "\t\tsomeFunction(parameter1,\n" 6911 "\t\t\t parameter2);\n" 6912 "\t}\n" 6913 "};", 6914 Tab); 6915 verifyFormat("#define A \\\n" 6916 "\tvoid f() { \\\n" 6917 "\t\tsomeFunction( \\\n" 6918 "\t\t parameter1, \\\n" 6919 "\t\t parameter2); \\\n" 6920 "\t}", 6921 Tab); 6922 EXPECT_EQ("void f() {\n" 6923 "\tf();\n" 6924 "\tg();\n" 6925 "}", 6926 format("void f() {\n" 6927 "\tf();\n" 6928 "\tg();\n" 6929 "}", 6930 0, 0, Tab)); 6931 EXPECT_EQ("void f() {\n" 6932 "\tf();\n" 6933 "\tg();\n" 6934 "}", 6935 format("void f() {\n" 6936 "\tf();\n" 6937 "\tg();\n" 6938 "}", 6939 16, 0, Tab)); 6940 EXPECT_EQ("void f() {\n" 6941 " \tf();\n" 6942 "\tg();\n" 6943 "}", 6944 format("void f() {\n" 6945 " \tf();\n" 6946 " \tg();\n" 6947 "}", 6948 21, 0, Tab)); 6949 6950 Tab.TabWidth = 4; 6951 Tab.IndentWidth = 8; 6952 verifyFormat("class TabWidth4Indent8 {\n" 6953 "\t\tvoid f() {\n" 6954 "\t\t\t\tsomeFunction(parameter1,\n" 6955 "\t\t\t\t\t\t\t parameter2);\n" 6956 "\t\t}\n" 6957 "};", 6958 Tab); 6959 6960 Tab.TabWidth = 4; 6961 Tab.IndentWidth = 4; 6962 verifyFormat("class TabWidth4Indent4 {\n" 6963 "\tvoid f() {\n" 6964 "\t\tsomeFunction(parameter1,\n" 6965 "\t\t\t\t\t parameter2);\n" 6966 "\t}\n" 6967 "};", 6968 Tab); 6969 6970 Tab.TabWidth = 8; 6971 Tab.IndentWidth = 4; 6972 verifyFormat("class TabWidth8Indent4 {\n" 6973 " void f() {\n" 6974 "\tsomeFunction(parameter1,\n" 6975 "\t\t parameter2);\n" 6976 " }\n" 6977 "};", 6978 Tab); 6979 6980 Tab.TabWidth = 8; 6981 Tab.IndentWidth = 8; 6982 EXPECT_EQ("/*\n" 6983 "\t a\t\tcomment\n" 6984 "\t in multiple lines\n" 6985 " */", 6986 format(" /*\t \t \n" 6987 " \t \t a\t\tcomment\t \t\n" 6988 " \t \t in multiple lines\t\n" 6989 " \t */", 6990 Tab)); 6991 6992 Tab.UseTab = FormatStyle::UT_ForIndentation; 6993 verifyFormat("{\n" 6994 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 6995 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 6996 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 6997 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 6998 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 6999 "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n" 7000 "};", 7001 Tab); 7002 verifyFormat("enum A {\n" 7003 "\ta1, // Force multiple lines\n" 7004 "\ta2,\n" 7005 "\ta3\n" 7006 "};", 7007 Tab); 7008 EXPECT_EQ("if (aaaaaaaa && // q\n" 7009 " bb) // w\n" 7010 "\t;", 7011 format("if (aaaaaaaa &&// q\n" 7012 "bb)// w\n" 7013 ";", 7014 Tab)); 7015 verifyFormat("class X {\n" 7016 "\tvoid f() {\n" 7017 "\t\tsomeFunction(parameter1,\n" 7018 "\t\t parameter2);\n" 7019 "\t}\n" 7020 "};", 7021 Tab); 7022 verifyFormat("{\n" 7023 "\tQ({\n" 7024 "\t\t int a;\n" 7025 "\t\t someFunction(aaaaaaaaaa,\n" 7026 "\t\t bbbbbbbbb);\n" 7027 "\t },\n" 7028 "\t p);\n" 7029 "}", 7030 Tab); 7031 EXPECT_EQ("{\n" 7032 "\t/* aaaa\n" 7033 "\t bbbb */\n" 7034 "}", 7035 format("{\n" 7036 "/* aaaa\n" 7037 " bbbb */\n" 7038 "}", 7039 Tab)); 7040 EXPECT_EQ("{\n" 7041 "\t/*\n" 7042 "\t aaaaaaaaaaaaaaaaaaaaaaaaaa\n" 7043 "\t bbbbbbbbbbbbb\n" 7044 "\t*/\n" 7045 "}", 7046 format("{\n" 7047 "/*\n" 7048 " aaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbb\n" 7049 "*/\n" 7050 "}", 7051 Tab)); 7052 EXPECT_EQ("{\n" 7053 "\t// aaaaaaaaaaaaaaaaaaaaaaaaaa\n" 7054 "\t// bbbbbbbbbbbbb\n" 7055 "}", 7056 format("{\n" 7057 "\t// aaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbb\n" 7058 "}", 7059 Tab)); 7060 EXPECT_EQ("{\n" 7061 "\t/*\n" 7062 "\t aaaaaaaaaaaaaaaaaaaaaaaaaa\n" 7063 "\t bbbbbbbbbbbbb\n" 7064 "\t*/\n" 7065 "}", 7066 format("{\n" 7067 "\t/*\n" 7068 "\t aaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbb\n" 7069 "\t*/\n" 7070 "}", 7071 Tab)); 7072 EXPECT_EQ("{\n" 7073 "\t/*\n" 7074 "\n" 7075 "\t*/\n" 7076 "}", 7077 format("{\n" 7078 "\t/*\n" 7079 "\n" 7080 "\t*/\n" 7081 "}", 7082 Tab)); 7083 EXPECT_EQ("{\n" 7084 "\t/*\n" 7085 " asdf\n" 7086 "\t*/\n" 7087 "}", 7088 format("{\n" 7089 "\t/*\n" 7090 " asdf\n" 7091 "\t*/\n" 7092 "}", 7093 Tab)); 7094 7095 Tab.UseTab = FormatStyle::UT_Never; 7096 EXPECT_EQ("/*\n" 7097 " a\t\tcomment\n" 7098 " in multiple lines\n" 7099 " */", 7100 format(" /*\t \t \n" 7101 " \t \t a\t\tcomment\t \t\n" 7102 " \t \t in multiple lines\t\n" 7103 " \t */", 7104 Tab)); 7105 EXPECT_EQ("/* some\n" 7106 " comment */", 7107 format(" \t \t /* some\n" 7108 " \t \t comment */", 7109 Tab)); 7110 EXPECT_EQ("int a; /* some\n" 7111 " comment */", 7112 format(" \t \t int a; /* some\n" 7113 " \t \t comment */", 7114 Tab)); 7115 7116 EXPECT_EQ("int a; /* some\n" 7117 "comment */", 7118 format(" \t \t int\ta; /* some\n" 7119 " \t \t comment */", 7120 Tab)); 7121 EXPECT_EQ("f(\"\t\t\"); /* some\n" 7122 " comment */", 7123 format(" \t \t f(\"\t\t\"); /* some\n" 7124 " \t \t comment */", 7125 Tab)); 7126 EXPECT_EQ("{\n" 7127 " /*\n" 7128 " * Comment\n" 7129 " */\n" 7130 " int i;\n" 7131 "}", 7132 format("{\n" 7133 "\t/*\n" 7134 "\t * Comment\n" 7135 "\t */\n" 7136 "\t int i;\n" 7137 "}")); 7138 } 7139 7140 TEST_F(FormatTest, CalculatesOriginalColumn) { 7141 EXPECT_EQ("\"qqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 7142 "q\"; /* some\n" 7143 " comment */", 7144 format(" \"qqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 7145 "q\"; /* some\n" 7146 " comment */", 7147 getLLVMStyle())); 7148 EXPECT_EQ("// qqqqqqqqqqqqqqqqqqqqqqqqqq\n" 7149 "/* some\n" 7150 " comment */", 7151 format("// qqqqqqqqqqqqqqqqqqqqqqqqqq\n" 7152 " /* some\n" 7153 " comment */", 7154 getLLVMStyle())); 7155 EXPECT_EQ("// qqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 7156 "qqq\n" 7157 "/* some\n" 7158 " comment */", 7159 format("// qqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 7160 "qqq\n" 7161 " /* some\n" 7162 " comment */", 7163 getLLVMStyle())); 7164 EXPECT_EQ("inttt qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 7165 "wwww; /* some\n" 7166 " comment */", 7167 format(" inttt qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq\\\n" 7168 "wwww; /* some\n" 7169 " comment */", 7170 getLLVMStyle())); 7171 } 7172 7173 TEST_F(FormatTest, ConfigurableSpaceBeforeParens) { 7174 FormatStyle NoSpace = getLLVMStyle(); 7175 NoSpace.SpaceBeforeParens = FormatStyle::SBPO_Never; 7176 7177 verifyFormat("while(true)\n" 7178 " continue;", NoSpace); 7179 verifyFormat("for(;;)\n" 7180 " continue;", NoSpace); 7181 verifyFormat("if(true)\n" 7182 " f();\n" 7183 "else if(true)\n" 7184 " f();", NoSpace); 7185 verifyFormat("do {\n" 7186 " do_something();\n" 7187 "} while(something());", NoSpace); 7188 verifyFormat("switch(x) {\n" 7189 "default:\n" 7190 " break;\n" 7191 "}", NoSpace); 7192 7193 FormatStyle Space = getLLVMStyle(); 7194 Space.SpaceBeforeParens = FormatStyle::SBPO_Always; 7195 7196 verifyFormat("int f ();", Space); 7197 verifyFormat("void f (int a, T b) {\n" 7198 " while (true)\n" 7199 " continue;\n" 7200 "}", 7201 Space); 7202 verifyFormat("if (true)\n" 7203 " f ();\n" 7204 "else if (true)\n" 7205 " f ();", 7206 Space); 7207 verifyFormat("do {\n" 7208 " do_something ();\n" 7209 "} while (something ());", 7210 Space); 7211 verifyFormat("switch (x) {\n" 7212 "default:\n" 7213 " break;\n" 7214 "}", 7215 Space); 7216 verifyFormat("A::A () : a (1) {}", Space); 7217 verifyFormat("void f () __attribute__ ((asdf));", Space); 7218 verifyFormat("*(&a + 1);\n" 7219 "&((&a)[1]);\n" 7220 "a[(b + c) * d];\n" 7221 "(((a + 1) * 2) + 3) * 4;", 7222 Space); 7223 verifyFormat("#define A(x) x", Space); 7224 verifyFormat("#define A (x) x", Space); 7225 verifyFormat("#if defined(x)\n" 7226 "#endif", 7227 Space); 7228 } 7229 7230 TEST_F(FormatTest, ConfigurableSpacesInParentheses) { 7231 FormatStyle Spaces = getLLVMStyle(); 7232 7233 Spaces.SpacesInParentheses = true; 7234 verifyFormat("call( x, y, z );", Spaces); 7235 verifyFormat("while ( (bool)1 )\n" 7236 " continue;", Spaces); 7237 verifyFormat("for ( ;; )\n" 7238 " continue;", Spaces); 7239 verifyFormat("if ( true )\n" 7240 " f();\n" 7241 "else if ( true )\n" 7242 " f();", Spaces); 7243 verifyFormat("do {\n" 7244 " do_something( (int)i );\n" 7245 "} while ( something() );", Spaces); 7246 verifyFormat("switch ( x ) {\n" 7247 "default:\n" 7248 " break;\n" 7249 "}", Spaces); 7250 7251 Spaces.SpacesInParentheses = false; 7252 Spaces.SpacesInCStyleCastParentheses = true; 7253 verifyFormat("Type *A = ( Type * )P;", Spaces); 7254 verifyFormat("Type *A = ( vector<Type *, int *> )P;", Spaces); 7255 verifyFormat("x = ( int32 )y;", Spaces); 7256 verifyFormat("int a = ( int )(2.0f);", Spaces); 7257 verifyFormat("#define AA(X) sizeof((( X * )NULL)->a)", Spaces); 7258 verifyFormat("my_int a = ( my_int )sizeof(int);", Spaces); 7259 verifyFormat("#define x (( int )-1)", Spaces); 7260 7261 Spaces.SpacesInParentheses = false; 7262 Spaces.SpaceInEmptyParentheses = true; 7263 verifyFormat("call(x, y, z);", Spaces); 7264 verifyFormat("call( )", Spaces); 7265 7266 // Run the first set of tests again with 7267 // Spaces.SpacesInParentheses = false, 7268 // Spaces.SpaceInEmptyParentheses = true and 7269 // Spaces.SpacesInCStyleCastParentheses = true 7270 Spaces.SpacesInParentheses = false, 7271 Spaces.SpaceInEmptyParentheses = true; 7272 Spaces.SpacesInCStyleCastParentheses = true; 7273 verifyFormat("call(x, y, z);", Spaces); 7274 verifyFormat("while (( bool )1)\n" 7275 " continue;", Spaces); 7276 verifyFormat("for (;;)\n" 7277 " continue;", Spaces); 7278 verifyFormat("if (true)\n" 7279 " f( );\n" 7280 "else if (true)\n" 7281 " f( );", Spaces); 7282 verifyFormat("do {\n" 7283 " do_something(( int )i);\n" 7284 "} while (something( ));", Spaces); 7285 verifyFormat("switch (x) {\n" 7286 "default:\n" 7287 " break;\n" 7288 "}", Spaces); 7289 } 7290 7291 TEST_F(FormatTest, ConfigurableSpaceBeforeAssignmentOperators) { 7292 verifyFormat("int a = 5;"); 7293 verifyFormat("a += 42;"); 7294 verifyFormat("a or_eq 8;"); 7295 7296 FormatStyle Spaces = getLLVMStyle(); 7297 Spaces.SpaceBeforeAssignmentOperators = false; 7298 verifyFormat("int a= 5;", Spaces); 7299 verifyFormat("a+= 42;", Spaces); 7300 verifyFormat("a or_eq 8;", Spaces); 7301 } 7302 7303 TEST_F(FormatTest, LinuxBraceBreaking) { 7304 FormatStyle BreakBeforeBrace = getLLVMStyle(); 7305 BreakBeforeBrace.BreakBeforeBraces = FormatStyle::BS_Linux; 7306 verifyFormat("namespace a\n" 7307 "{\n" 7308 "class A\n" 7309 "{\n" 7310 " void f()\n" 7311 " {\n" 7312 " if (true) {\n" 7313 " a();\n" 7314 " b();\n" 7315 " }\n" 7316 " }\n" 7317 " void g() { return; }\n" 7318 "}\n" 7319 "}", 7320 BreakBeforeBrace); 7321 } 7322 7323 TEST_F(FormatTest, StroustrupBraceBreaking) { 7324 FormatStyle BreakBeforeBrace = getLLVMStyle(); 7325 BreakBeforeBrace.BreakBeforeBraces = FormatStyle::BS_Stroustrup; 7326 verifyFormat("namespace a {\n" 7327 "class A {\n" 7328 " void f()\n" 7329 " {\n" 7330 " if (true) {\n" 7331 " a();\n" 7332 " b();\n" 7333 " }\n" 7334 " }\n" 7335 " void g() { return; }\n" 7336 "}\n" 7337 "}", 7338 BreakBeforeBrace); 7339 } 7340 7341 TEST_F(FormatTest, AllmanBraceBreaking) { 7342 FormatStyle BreakBeforeBrace = getLLVMStyle(); 7343 BreakBeforeBrace.BreakBeforeBraces = FormatStyle::BS_Allman; 7344 verifyFormat("namespace a\n" 7345 "{\n" 7346 "class A\n" 7347 "{\n" 7348 " void f()\n" 7349 " {\n" 7350 " if (true)\n" 7351 " {\n" 7352 " a();\n" 7353 " b();\n" 7354 " }\n" 7355 " }\n" 7356 " void g() { return; }\n" 7357 "}\n" 7358 "}", 7359 BreakBeforeBrace); 7360 7361 verifyFormat("void f()\n" 7362 "{\n" 7363 " if (true)\n" 7364 " {\n" 7365 " a();\n" 7366 " }\n" 7367 " else if (false)\n" 7368 " {\n" 7369 " b();\n" 7370 " }\n" 7371 " else\n" 7372 " {\n" 7373 " c();\n" 7374 " }\n" 7375 "}\n", 7376 BreakBeforeBrace); 7377 7378 verifyFormat("void f()\n" 7379 "{\n" 7380 " for (int i = 0; i < 10; ++i)\n" 7381 " {\n" 7382 " a();\n" 7383 " }\n" 7384 " while (false)\n" 7385 " {\n" 7386 " b();\n" 7387 " }\n" 7388 " do\n" 7389 " {\n" 7390 " c();\n" 7391 " } while (false)\n" 7392 "}\n", 7393 BreakBeforeBrace); 7394 7395 verifyFormat("void f(int a)\n" 7396 "{\n" 7397 " switch (a)\n" 7398 " {\n" 7399 " case 0:\n" 7400 " break;\n" 7401 " case 1:\n" 7402 " {\n" 7403 " break;\n" 7404 " }\n" 7405 " case 2:\n" 7406 " {\n" 7407 " }\n" 7408 " break;\n" 7409 " default:\n" 7410 " break;\n" 7411 " }\n" 7412 "}\n", 7413 BreakBeforeBrace); 7414 7415 verifyFormat("enum X\n" 7416 "{\n" 7417 " Y = 0,\n" 7418 "}\n", 7419 BreakBeforeBrace); 7420 7421 BreakBeforeBrace.ColumnLimit = 19; 7422 verifyFormat("void f() { int i; }", BreakBeforeBrace); 7423 BreakBeforeBrace.ColumnLimit = 18; 7424 verifyFormat("void f()\n" 7425 "{\n" 7426 " int i;\n" 7427 "}", 7428 BreakBeforeBrace); 7429 BreakBeforeBrace.ColumnLimit = 80; 7430 7431 FormatStyle BreakBeforeBraceShortIfs = BreakBeforeBrace; 7432 BreakBeforeBraceShortIfs.AllowShortIfStatementsOnASingleLine = true; 7433 BreakBeforeBraceShortIfs.AllowShortLoopsOnASingleLine = true; 7434 verifyFormat("void f(bool b)\n" 7435 "{\n" 7436 " if (b)\n" 7437 " {\n" 7438 " return;\n" 7439 " }\n" 7440 "}\n", 7441 BreakBeforeBraceShortIfs); 7442 verifyFormat("void f(bool b)\n" 7443 "{\n" 7444 " if (b) return;\n" 7445 "}\n", 7446 BreakBeforeBraceShortIfs); 7447 verifyFormat("void f(bool b)\n" 7448 "{\n" 7449 " while (b)\n" 7450 " {\n" 7451 " return;\n" 7452 " }\n" 7453 "}\n", 7454 BreakBeforeBraceShortIfs); 7455 } 7456 7457 TEST_F(FormatTest, GNUBraceBreaking) { 7458 FormatStyle GNUBraceStyle = getLLVMStyle(); 7459 GNUBraceStyle.BreakBeforeBraces = FormatStyle::BS_GNU; 7460 verifyFormat("namespace a\n" 7461 "{\n" 7462 "class A\n" 7463 "{\n" 7464 " void f()\n" 7465 " {\n" 7466 " int a;\n" 7467 " {\n" 7468 " int b;\n" 7469 " }\n" 7470 " if (true)\n" 7471 " {\n" 7472 " a();\n" 7473 " b();\n" 7474 " }\n" 7475 " }\n" 7476 " void g() { return; }\n" 7477 "}\n" 7478 "}", 7479 GNUBraceStyle); 7480 7481 verifyFormat("void f()\n" 7482 "{\n" 7483 " if (true)\n" 7484 " {\n" 7485 " a();\n" 7486 " }\n" 7487 " else if (false)\n" 7488 " {\n" 7489 " b();\n" 7490 " }\n" 7491 " else\n" 7492 " {\n" 7493 " c();\n" 7494 " }\n" 7495 "}\n", 7496 GNUBraceStyle); 7497 7498 verifyFormat("void f()\n" 7499 "{\n" 7500 " for (int i = 0; i < 10; ++i)\n" 7501 " {\n" 7502 " a();\n" 7503 " }\n" 7504 " while (false)\n" 7505 " {\n" 7506 " b();\n" 7507 " }\n" 7508 " do\n" 7509 " {\n" 7510 " c();\n" 7511 " }\n" 7512 " while (false);\n" 7513 "}\n", 7514 GNUBraceStyle); 7515 7516 verifyFormat("void f(int a)\n" 7517 "{\n" 7518 " switch (a)\n" 7519 " {\n" 7520 " case 0:\n" 7521 " break;\n" 7522 " case 1:\n" 7523 " {\n" 7524 " break;\n" 7525 " }\n" 7526 " case 2:\n" 7527 " {\n" 7528 " }\n" 7529 " break;\n" 7530 " default:\n" 7531 " break;\n" 7532 " }\n" 7533 "}\n", 7534 GNUBraceStyle); 7535 7536 verifyFormat("enum X\n" 7537 "{\n" 7538 " Y = 0,\n" 7539 "}\n", 7540 GNUBraceStyle); 7541 } 7542 TEST_F(FormatTest, CatchExceptionReferenceBinding) { 7543 verifyFormat("void f() {\n" 7544 " try {\n" 7545 " }\n" 7546 " catch (const Exception &e) {\n" 7547 " }\n" 7548 "}\n", 7549 getLLVMStyle()); 7550 } 7551 7552 TEST_F(FormatTest, UnderstandsPragmas) { 7553 verifyFormat("#pragma omp reduction(| : var)"); 7554 verifyFormat("#pragma omp reduction(+ : var)"); 7555 7556 EXPECT_EQ("#pragma mark Any non-hyphenated or hyphenated string " 7557 "(including parentheses).", 7558 format("#pragma mark Any non-hyphenated or hyphenated string " 7559 "(including parentheses).")); 7560 } 7561 7562 #define EXPECT_ALL_STYLES_EQUAL(Styles) \ 7563 for (size_t i = 1; i < Styles.size(); ++i) \ 7564 EXPECT_EQ(Styles[0], Styles[i]) << "Style #" << i << " of " \ 7565 << Styles.size() \ 7566 << " differs from Style #0" 7567 7568 TEST_F(FormatTest, GetsPredefinedStyleByName) { 7569 SmallVector<FormatStyle, 3> Styles; 7570 Styles.resize(3); 7571 7572 Styles[0] = getLLVMStyle(); 7573 EXPECT_TRUE(getPredefinedStyle("LLVM", FormatStyle::LK_Cpp, &Styles[1])); 7574 EXPECT_TRUE(getPredefinedStyle("lLvM", FormatStyle::LK_Cpp, &Styles[2])); 7575 EXPECT_ALL_STYLES_EQUAL(Styles); 7576 7577 Styles[0] = getGoogleStyle(); 7578 EXPECT_TRUE(getPredefinedStyle("Google", FormatStyle::LK_Cpp, &Styles[1])); 7579 EXPECT_TRUE(getPredefinedStyle("gOOgle", FormatStyle::LK_Cpp, &Styles[2])); 7580 EXPECT_ALL_STYLES_EQUAL(Styles); 7581 7582 Styles[0] = getGoogleStyle(FormatStyle::LK_JavaScript); 7583 EXPECT_TRUE( 7584 getPredefinedStyle("Google", FormatStyle::LK_JavaScript, &Styles[1])); 7585 EXPECT_TRUE( 7586 getPredefinedStyle("gOOgle", FormatStyle::LK_JavaScript, &Styles[2])); 7587 EXPECT_ALL_STYLES_EQUAL(Styles); 7588 7589 Styles[0] = getChromiumStyle(FormatStyle::LK_Cpp); 7590 EXPECT_TRUE(getPredefinedStyle("Chromium", FormatStyle::LK_Cpp, &Styles[1])); 7591 EXPECT_TRUE(getPredefinedStyle("cHRoMiUM", FormatStyle::LK_Cpp, &Styles[2])); 7592 EXPECT_ALL_STYLES_EQUAL(Styles); 7593 7594 Styles[0] = getMozillaStyle(); 7595 EXPECT_TRUE(getPredefinedStyle("Mozilla", FormatStyle::LK_Cpp, &Styles[1])); 7596 EXPECT_TRUE(getPredefinedStyle("moZILla", FormatStyle::LK_Cpp, &Styles[2])); 7597 EXPECT_ALL_STYLES_EQUAL(Styles); 7598 7599 Styles[0] = getWebKitStyle(); 7600 EXPECT_TRUE(getPredefinedStyle("WebKit", FormatStyle::LK_Cpp, &Styles[1])); 7601 EXPECT_TRUE(getPredefinedStyle("wEbKit", FormatStyle::LK_Cpp, &Styles[2])); 7602 EXPECT_ALL_STYLES_EQUAL(Styles); 7603 7604 Styles[0] = getGNUStyle(); 7605 EXPECT_TRUE(getPredefinedStyle("GNU", FormatStyle::LK_Cpp, &Styles[1])); 7606 EXPECT_TRUE(getPredefinedStyle("gnU", FormatStyle::LK_Cpp, &Styles[2])); 7607 EXPECT_ALL_STYLES_EQUAL(Styles); 7608 7609 EXPECT_FALSE(getPredefinedStyle("qwerty", FormatStyle::LK_Cpp, &Styles[0])); 7610 } 7611 7612 TEST_F(FormatTest, GetsCorrectBasedOnStyle) { 7613 SmallVector<FormatStyle, 8> Styles; 7614 Styles.resize(2); 7615 7616 Styles[0] = getGoogleStyle(); 7617 Styles[1] = getLLVMStyle(); 7618 EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google", &Styles[1]).value()); 7619 EXPECT_ALL_STYLES_EQUAL(Styles); 7620 7621 Styles.resize(5); 7622 Styles[0] = getGoogleStyle(FormatStyle::LK_JavaScript); 7623 Styles[1] = getLLVMStyle(); 7624 Styles[1].Language = FormatStyle::LK_JavaScript; 7625 EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google", &Styles[1]).value()); 7626 7627 Styles[2] = getLLVMStyle(); 7628 Styles[2].Language = FormatStyle::LK_JavaScript; 7629 EXPECT_EQ(0, parseConfiguration("Language: JavaScript\n" 7630 "BasedOnStyle: Google", 7631 &Styles[2]).value()); 7632 7633 Styles[3] = getLLVMStyle(); 7634 Styles[3].Language = FormatStyle::LK_JavaScript; 7635 EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google\n" 7636 "Language: JavaScript", 7637 &Styles[3]).value()); 7638 7639 Styles[4] = getLLVMStyle(); 7640 Styles[4].Language = FormatStyle::LK_JavaScript; 7641 EXPECT_EQ(0, parseConfiguration("---\n" 7642 "BasedOnStyle: LLVM\n" 7643 "IndentWidth: 123\n" 7644 "---\n" 7645 "BasedOnStyle: Google\n" 7646 "Language: JavaScript", 7647 &Styles[4]).value()); 7648 EXPECT_ALL_STYLES_EQUAL(Styles); 7649 } 7650 7651 #define CHECK_PARSE(TEXT, FIELD, VALUE) \ 7652 EXPECT_NE(VALUE, Style.FIELD); \ 7653 EXPECT_EQ(0, parseConfiguration(TEXT, &Style).value()); \ 7654 EXPECT_EQ(VALUE, Style.FIELD) 7655 7656 #define CHECK_PARSE_BOOL(FIELD) \ 7657 Style.FIELD = false; \ 7658 EXPECT_EQ(0, parseConfiguration(#FIELD ": true", &Style).value()); \ 7659 EXPECT_TRUE(Style.FIELD); \ 7660 EXPECT_EQ(0, parseConfiguration(#FIELD ": false", &Style).value()); \ 7661 EXPECT_FALSE(Style.FIELD); 7662 7663 TEST_F(FormatTest, ParsesConfiguration) { 7664 FormatStyle Style = {}; 7665 Style.Language = FormatStyle::LK_Cpp; 7666 CHECK_PARSE_BOOL(AlignEscapedNewlinesLeft); 7667 CHECK_PARSE_BOOL(AlignTrailingComments); 7668 CHECK_PARSE_BOOL(AllowAllParametersOfDeclarationOnNextLine); 7669 CHECK_PARSE_BOOL(AllowShortIfStatementsOnASingleLine); 7670 CHECK_PARSE_BOOL(AllowShortLoopsOnASingleLine); 7671 CHECK_PARSE_BOOL(AlwaysBreakTemplateDeclarations); 7672 CHECK_PARSE_BOOL(BinPackParameters); 7673 CHECK_PARSE_BOOL(BreakBeforeBinaryOperators); 7674 CHECK_PARSE_BOOL(BreakBeforeTernaryOperators); 7675 CHECK_PARSE_BOOL(BreakConstructorInitializersBeforeComma); 7676 CHECK_PARSE_BOOL(ConstructorInitializerAllOnOneLineOrOnePerLine); 7677 CHECK_PARSE_BOOL(DerivePointerBinding); 7678 CHECK_PARSE_BOOL(IndentCaseLabels); 7679 CHECK_PARSE_BOOL(KeepEmptyLinesAtTheStartOfBlocks); 7680 CHECK_PARSE_BOOL(ObjCSpaceAfterProperty); 7681 CHECK_PARSE_BOOL(ObjCSpaceBeforeProtocolList); 7682 CHECK_PARSE_BOOL(PointerBindsToType); 7683 CHECK_PARSE_BOOL(Cpp11BracedListStyle); 7684 CHECK_PARSE_BOOL(IndentFunctionDeclarationAfterType); 7685 CHECK_PARSE_BOOL(SpacesInParentheses); 7686 CHECK_PARSE_BOOL(SpacesInAngles); 7687 CHECK_PARSE_BOOL(SpaceInEmptyParentheses); 7688 CHECK_PARSE_BOOL(SpacesInContainerLiterals); 7689 CHECK_PARSE_BOOL(SpacesInCStyleCastParentheses); 7690 CHECK_PARSE_BOOL(SpaceBeforeAssignmentOperators); 7691 7692 CHECK_PARSE("AccessModifierOffset: -1234", AccessModifierOffset, -1234); 7693 CHECK_PARSE("ConstructorInitializerIndentWidth: 1234", 7694 ConstructorInitializerIndentWidth, 1234u); 7695 CHECK_PARSE("ColumnLimit: 1234", ColumnLimit, 1234u); 7696 CHECK_PARSE("MaxEmptyLinesToKeep: 1234", MaxEmptyLinesToKeep, 1234u); 7697 CHECK_PARSE("PenaltyBreakBeforeFirstCallParameter: 1234", 7698 PenaltyBreakBeforeFirstCallParameter, 1234u); 7699 CHECK_PARSE("PenaltyExcessCharacter: 1234", PenaltyExcessCharacter, 1234u); 7700 CHECK_PARSE("PenaltyReturnTypeOnItsOwnLine: 1234", 7701 PenaltyReturnTypeOnItsOwnLine, 1234u); 7702 CHECK_PARSE("SpacesBeforeTrailingComments: 1234", 7703 SpacesBeforeTrailingComments, 1234u); 7704 CHECK_PARSE("IndentWidth: 32", IndentWidth, 32u); 7705 CHECK_PARSE("ContinuationIndentWidth: 11", ContinuationIndentWidth, 11u); 7706 7707 Style.Standard = FormatStyle::LS_Auto; 7708 CHECK_PARSE("Standard: Cpp03", Standard, FormatStyle::LS_Cpp03); 7709 CHECK_PARSE("Standard: Cpp11", Standard, FormatStyle::LS_Cpp11); 7710 CHECK_PARSE("Standard: C++03", Standard, FormatStyle::LS_Cpp03); 7711 CHECK_PARSE("Standard: C++11", Standard, FormatStyle::LS_Cpp11); 7712 CHECK_PARSE("Standard: Auto", Standard, FormatStyle::LS_Auto); 7713 7714 Style.UseTab = FormatStyle::UT_ForIndentation; 7715 CHECK_PARSE("UseTab: false", UseTab, FormatStyle::UT_Never); 7716 CHECK_PARSE("UseTab: true", UseTab, FormatStyle::UT_Always); 7717 CHECK_PARSE("UseTab: Never", UseTab, FormatStyle::UT_Never); 7718 CHECK_PARSE("UseTab: ForIndentation", UseTab, FormatStyle::UT_ForIndentation); 7719 CHECK_PARSE("UseTab: Always", UseTab, FormatStyle::UT_Always); 7720 7721 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Inline; 7722 CHECK_PARSE("AllowShortFunctionsOnASingleLine: false", 7723 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_None); 7724 CHECK_PARSE("AllowShortFunctionsOnASingleLine: true", 7725 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_All); 7726 CHECK_PARSE("AllowShortFunctionsOnASingleLine: None", 7727 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_None); 7728 CHECK_PARSE("AllowShortFunctionsOnASingleLine: Inline", 7729 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_Inline); 7730 CHECK_PARSE("AllowShortFunctionsOnASingleLine: All", 7731 AllowShortFunctionsOnASingleLine, FormatStyle::SFS_All); 7732 7733 Style.SpaceBeforeParens = FormatStyle::SBPO_Always; 7734 CHECK_PARSE("SpaceBeforeParens: Never", SpaceBeforeParens, 7735 FormatStyle::SBPO_Never); 7736 CHECK_PARSE("SpaceBeforeParens: Always", SpaceBeforeParens, 7737 FormatStyle::SBPO_Always); 7738 CHECK_PARSE("SpaceBeforeParens: ControlStatements", SpaceBeforeParens, 7739 FormatStyle::SBPO_ControlStatements); 7740 // For backward compatibility: 7741 CHECK_PARSE("SpaceAfterControlStatementKeyword: false", SpaceBeforeParens, 7742 FormatStyle::SBPO_Never); 7743 CHECK_PARSE("SpaceAfterControlStatementKeyword: true", SpaceBeforeParens, 7744 FormatStyle::SBPO_ControlStatements); 7745 7746 Style.ColumnLimit = 123; 7747 FormatStyle BaseStyle = getLLVMStyle(); 7748 CHECK_PARSE("BasedOnStyle: LLVM", ColumnLimit, BaseStyle.ColumnLimit); 7749 CHECK_PARSE("BasedOnStyle: LLVM\nColumnLimit: 1234", ColumnLimit, 1234u); 7750 7751 Style.BreakBeforeBraces = FormatStyle::BS_Stroustrup; 7752 CHECK_PARSE("BreakBeforeBraces: Attach", BreakBeforeBraces, 7753 FormatStyle::BS_Attach); 7754 CHECK_PARSE("BreakBeforeBraces: Linux", BreakBeforeBraces, 7755 FormatStyle::BS_Linux); 7756 CHECK_PARSE("BreakBeforeBraces: Stroustrup", BreakBeforeBraces, 7757 FormatStyle::BS_Stroustrup); 7758 CHECK_PARSE("BreakBeforeBraces: Allman", BreakBeforeBraces, 7759 FormatStyle::BS_Allman); 7760 CHECK_PARSE("BreakBeforeBraces: GNU", BreakBeforeBraces, FormatStyle::BS_GNU); 7761 7762 Style.NamespaceIndentation = FormatStyle::NI_All; 7763 CHECK_PARSE("NamespaceIndentation: None", NamespaceIndentation, 7764 FormatStyle::NI_None); 7765 CHECK_PARSE("NamespaceIndentation: Inner", NamespaceIndentation, 7766 FormatStyle::NI_Inner); 7767 CHECK_PARSE("NamespaceIndentation: All", NamespaceIndentation, 7768 FormatStyle::NI_All); 7769 7770 Style.ForEachMacros.clear(); 7771 std::vector<std::string> BoostForeach; 7772 BoostForeach.push_back("BOOST_FOREACH"); 7773 CHECK_PARSE("ForEachMacros: [BOOST_FOREACH]", ForEachMacros, BoostForeach); 7774 std::vector<std::string> BoostAndQForeach; 7775 BoostAndQForeach.push_back("BOOST_FOREACH"); 7776 BoostAndQForeach.push_back("Q_FOREACH"); 7777 CHECK_PARSE("ForEachMacros: [BOOST_FOREACH, Q_FOREACH]", ForEachMacros, 7778 BoostAndQForeach); 7779 } 7780 7781 TEST_F(FormatTest, ParsesConfigurationWithLanguages) { 7782 FormatStyle Style = {}; 7783 Style.Language = FormatStyle::LK_Cpp; 7784 CHECK_PARSE("Language: Cpp\n" 7785 "IndentWidth: 12", 7786 IndentWidth, 12u); 7787 EXPECT_EQ(llvm::errc::not_supported, 7788 parseConfiguration("Language: JavaScript\n" 7789 "IndentWidth: 34", 7790 &Style)); 7791 EXPECT_EQ(12u, Style.IndentWidth); 7792 CHECK_PARSE("IndentWidth: 56", IndentWidth, 56u); 7793 EXPECT_EQ(FormatStyle::LK_Cpp, Style.Language); 7794 7795 Style.Language = FormatStyle::LK_JavaScript; 7796 CHECK_PARSE("Language: JavaScript\n" 7797 "IndentWidth: 12", 7798 IndentWidth, 12u); 7799 CHECK_PARSE("IndentWidth: 23", IndentWidth, 23u); 7800 EXPECT_EQ(llvm::errc::not_supported, parseConfiguration("Language: Cpp\n" 7801 "IndentWidth: 34", 7802 &Style)); 7803 EXPECT_EQ(23u, Style.IndentWidth); 7804 CHECK_PARSE("IndentWidth: 56", IndentWidth, 56u); 7805 EXPECT_EQ(FormatStyle::LK_JavaScript, Style.Language); 7806 7807 CHECK_PARSE("BasedOnStyle: LLVM\n" 7808 "IndentWidth: 67", 7809 IndentWidth, 67u); 7810 7811 CHECK_PARSE("---\n" 7812 "Language: JavaScript\n" 7813 "IndentWidth: 12\n" 7814 "---\n" 7815 "Language: Cpp\n" 7816 "IndentWidth: 34\n" 7817 "...\n", 7818 IndentWidth, 12u); 7819 7820 Style.Language = FormatStyle::LK_Cpp; 7821 CHECK_PARSE("---\n" 7822 "Language: JavaScript\n" 7823 "IndentWidth: 12\n" 7824 "---\n" 7825 "Language: Cpp\n" 7826 "IndentWidth: 34\n" 7827 "...\n", 7828 IndentWidth, 34u); 7829 CHECK_PARSE("---\n" 7830 "IndentWidth: 78\n" 7831 "---\n" 7832 "Language: JavaScript\n" 7833 "IndentWidth: 56\n" 7834 "...\n", 7835 IndentWidth, 78u); 7836 7837 Style.ColumnLimit = 123; 7838 Style.IndentWidth = 234; 7839 Style.BreakBeforeBraces = FormatStyle::BS_Linux; 7840 Style.TabWidth = 345; 7841 EXPECT_EQ(llvm::errc::success, 7842 parseConfiguration("---\n" 7843 "IndentWidth: 456\n" 7844 "BreakBeforeBraces: Allman\n" 7845 "---\n" 7846 "Language: JavaScript\n" 7847 "IndentWidth: 111\n" 7848 "TabWidth: 111\n" 7849 "---\n" 7850 "Language: Cpp\n" 7851 "BreakBeforeBraces: Stroustrup\n" 7852 "TabWidth: 789\n" 7853 "...\n", 7854 &Style)); 7855 EXPECT_EQ(123u, Style.ColumnLimit); 7856 EXPECT_EQ(456u, Style.IndentWidth); 7857 EXPECT_EQ(FormatStyle::BS_Stroustrup, Style.BreakBeforeBraces); 7858 EXPECT_EQ(789u, Style.TabWidth); 7859 7860 7861 EXPECT_EQ(llvm::errc::invalid_argument, 7862 parseConfiguration("---\n" 7863 "Language: JavaScript\n" 7864 "IndentWidth: 56\n" 7865 "---\n" 7866 "IndentWidth: 78\n" 7867 "...\n", 7868 &Style)); 7869 EXPECT_EQ(llvm::errc::invalid_argument, 7870 parseConfiguration("---\n" 7871 "Language: JavaScript\n" 7872 "IndentWidth: 56\n" 7873 "---\n" 7874 "Language: JavaScript\n" 7875 "IndentWidth: 78\n" 7876 "...\n", 7877 &Style)); 7878 7879 EXPECT_EQ(FormatStyle::LK_Cpp, Style.Language); 7880 } 7881 7882 #undef CHECK_PARSE 7883 #undef CHECK_PARSE_BOOL 7884 7885 TEST_F(FormatTest, UsesLanguageForBasedOnStyle) { 7886 FormatStyle Style = {}; 7887 Style.Language = FormatStyle::LK_JavaScript; 7888 Style.BreakBeforeTernaryOperators = true; 7889 EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google", &Style).value()); 7890 EXPECT_FALSE(Style.BreakBeforeTernaryOperators); 7891 7892 Style.BreakBeforeTernaryOperators = true; 7893 EXPECT_EQ(0, parseConfiguration("---\n" 7894 "BasedOnStyle: Google\n" 7895 "---\n" 7896 "Language: JavaScript\n" 7897 "IndentWidth: 76\n" 7898 "...\n", &Style).value()); 7899 EXPECT_FALSE(Style.BreakBeforeTernaryOperators); 7900 EXPECT_EQ(76u, Style.IndentWidth); 7901 EXPECT_EQ(FormatStyle::LK_JavaScript, Style.Language); 7902 } 7903 7904 TEST_F(FormatTest, ConfigurationRoundTripTest) { 7905 FormatStyle Style = getLLVMStyle(); 7906 std::string YAML = configurationAsText(Style); 7907 FormatStyle ParsedStyle = {}; 7908 ParsedStyle.Language = FormatStyle::LK_Cpp; 7909 EXPECT_EQ(0, parseConfiguration(YAML, &ParsedStyle).value()); 7910 EXPECT_EQ(Style, ParsedStyle); 7911 } 7912 7913 TEST_F(FormatTest, WorksFor8bitEncodings) { 7914 EXPECT_EQ("\"\xce\xe4\xed\xe0\xe6\xe4\xfb \xe2 \"\n" 7915 "\"\xf1\xf2\xf3\xe4\xb8\xed\xf3\xfe \"\n" 7916 "\"\xe7\xe8\xec\xed\xfe\xfe \"\n" 7917 "\"\xef\xee\xf0\xf3...\"", 7918 format("\"\xce\xe4\xed\xe0\xe6\xe4\xfb \xe2 " 7919 "\xf1\xf2\xf3\xe4\xb8\xed\xf3\xfe \xe7\xe8\xec\xed\xfe\xfe " 7920 "\xef\xee\xf0\xf3...\"", 7921 getLLVMStyleWithColumns(12))); 7922 } 7923 7924 TEST_F(FormatTest, HandlesUTF8BOM) { 7925 EXPECT_EQ("\xef\xbb\xbf", format("\xef\xbb\xbf")); 7926 EXPECT_EQ("\xef\xbb\xbf#include <iostream>", 7927 format("\xef\xbb\xbf#include <iostream>")); 7928 EXPECT_EQ("\xef\xbb\xbf\n#include <iostream>", 7929 format("\xef\xbb\xbf\n#include <iostream>")); 7930 } 7931 7932 // FIXME: Encode Cyrillic and CJK characters below to appease MS compilers. 7933 #if !defined(_MSC_VER) 7934 7935 TEST_F(FormatTest, CountsUTF8CharactersProperly) { 7936 verifyFormat("\"Однажды в студёную зимнюю пору...\"", 7937 getLLVMStyleWithColumns(35)); 7938 verifyFormat("\"一 二 三 四 五 六 七 八 九 十\"", 7939 getLLVMStyleWithColumns(31)); 7940 verifyFormat("// Однажды в студёную зимнюю пору...", 7941 getLLVMStyleWithColumns(36)); 7942 verifyFormat("// 一 二 三 四 五 六 七 八 九 十", 7943 getLLVMStyleWithColumns(32)); 7944 verifyFormat("/* Однажды в студёную зимнюю пору... */", 7945 getLLVMStyleWithColumns(39)); 7946 verifyFormat("/* 一 二 三 四 五 六 七 八 九 十 */", 7947 getLLVMStyleWithColumns(35)); 7948 } 7949 7950 TEST_F(FormatTest, SplitsUTF8Strings) { 7951 // Non-printable characters' width is currently considered to be the length in 7952 // bytes in UTF8. The characters can be displayed in very different manner 7953 // (zero-width, single width with a substitution glyph, expanded to their code 7954 // (e.g. "<8d>"), so there's no single correct way to handle them. 7955 EXPECT_EQ("\"aaaaÄ\"\n" 7956 "\"\xc2\x8d\";", 7957 format("\"aaaaÄ\xc2\x8d\";", getLLVMStyleWithColumns(10))); 7958 EXPECT_EQ("\"aaaaaaaÄ\"\n" 7959 "\"\xc2\x8d\";", 7960 format("\"aaaaaaaÄ\xc2\x8d\";", getLLVMStyleWithColumns(10))); 7961 EXPECT_EQ( 7962 "\"Однажды, в \"\n" 7963 "\"студёную \"\n" 7964 "\"зимнюю \"\n" 7965 "\"пору,\"", 7966 format("\"Однажды, в студёную зимнюю пору,\"", 7967 getLLVMStyleWithColumns(13))); 7968 EXPECT_EQ("\"一 二 三 \"\n" 7969 "\"四 五六 \"\n" 7970 "\"七 八 九 \"\n" 7971 "\"十\"", 7972 format("\"一 二 三 四 五六 七 八 九 十\"", 7973 getLLVMStyleWithColumns(11))); 7974 EXPECT_EQ("\"一\t二 \"\n" 7975 "\"\t三 \"\n" 7976 "\"四 五\t六 \"\n" 7977 "\"\t七 \"\n" 7978 "\"八九十\tqq\"", 7979 format("\"一\t二 \t三 四 五\t六 \t七 八九十\tqq\"", 7980 getLLVMStyleWithColumns(11))); 7981 } 7982 7983 7984 TEST_F(FormatTest, HandlesDoubleWidthCharsInMultiLineStrings) { 7985 EXPECT_EQ("const char *sssss =\n" 7986 " \"一二三四五六七八\\\n" 7987 " 九 十\";", 7988 format("const char *sssss = \"一二三四五六七八\\\n" 7989 " 九 十\";", 7990 getLLVMStyleWithColumns(30))); 7991 } 7992 7993 TEST_F(FormatTest, SplitsUTF8LineComments) { 7994 EXPECT_EQ("// aaaaÄ\xc2\x8d", 7995 format("// aaaaÄ\xc2\x8d", getLLVMStyleWithColumns(10))); 7996 EXPECT_EQ("// Я из лесу\n" 7997 "// вышел; был\n" 7998 "// сильный\n" 7999 "// мороз.", 8000 format("// Я из лесу вышел; был сильный мороз.", 8001 getLLVMStyleWithColumns(13))); 8002 EXPECT_EQ("// 一二三\n" 8003 "// 四五六七\n" 8004 "// 八 九\n" 8005 "// 十", 8006 format("// 一二三 四五六七 八 九 十", getLLVMStyleWithColumns(9))); 8007 } 8008 8009 TEST_F(FormatTest, SplitsUTF8BlockComments) { 8010 EXPECT_EQ("/* Гляжу,\n" 8011 " * поднимается\n" 8012 " * медленно в\n" 8013 " * гору\n" 8014 " * Лошадка,\n" 8015 " * везущая\n" 8016 " * хворосту\n" 8017 " * воз. */", 8018 format("/* Гляжу, поднимается медленно в гору\n" 8019 " * Лошадка, везущая хворосту воз. */", 8020 getLLVMStyleWithColumns(13))); 8021 EXPECT_EQ( 8022 "/* 一二三\n" 8023 " * 四五六七\n" 8024 " * 八 九\n" 8025 " * 十 */", 8026 format("/* 一二三 四五六七 八 九 十 */", getLLVMStyleWithColumns(9))); 8027 EXPECT_EQ("/* �������� ��������\n" 8028 " * ��������\n" 8029 " * ������-�� */", 8030 format("/* �������� �������� �������� ������-�� */", getLLVMStyleWithColumns(12))); 8031 } 8032 8033 #endif // _MSC_VER 8034 8035 TEST_F(FormatTest, ConstructorInitializerIndentWidth) { 8036 FormatStyle Style = getLLVMStyle(); 8037 8038 Style.ConstructorInitializerIndentWidth = 4; 8039 verifyFormat( 8040 "SomeClass::Constructor()\n" 8041 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 8042 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}", 8043 Style); 8044 8045 Style.ConstructorInitializerIndentWidth = 2; 8046 verifyFormat( 8047 "SomeClass::Constructor()\n" 8048 " : aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 8049 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}", 8050 Style); 8051 8052 Style.ConstructorInitializerIndentWidth = 0; 8053 verifyFormat( 8054 "SomeClass::Constructor()\n" 8055 ": aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n" 8056 " aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}", 8057 Style); 8058 8059 Style.BreakConstructorInitializersBeforeComma = true; 8060 Style.ConstructorInitializerIndentWidth = 4; 8061 verifyFormat("SomeClass::Constructor()\n" 8062 " : a(a)\n" 8063 " , b(b)\n" 8064 " , c(c) {}", 8065 Style); 8066 verifyFormat("SomeClass::Constructor()\n" 8067 " : a(a) {}", 8068 Style); 8069 8070 Style.ColumnLimit = 0; 8071 verifyFormat("SomeClass::Constructor()\n" 8072 " : a(a) {}", 8073 Style); 8074 verifyFormat("SomeClass::Constructor()\n" 8075 " : a(a)\n" 8076 " , b(b)\n" 8077 " , c(c) {}", 8078 Style); 8079 verifyFormat("SomeClass::Constructor()\n" 8080 " : a(a) {\n" 8081 " foo();\n" 8082 " bar();\n" 8083 "}", 8084 Style); 8085 8086 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_None; 8087 verifyFormat("SomeClass::Constructor()\n" 8088 " : a(a)\n" 8089 " , b(b)\n" 8090 " , c(c) {\n}", 8091 Style); 8092 verifyFormat("SomeClass::Constructor()\n" 8093 " : a(a) {\n}", 8094 Style); 8095 8096 Style.ColumnLimit = 80; 8097 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_All; 8098 Style.ConstructorInitializerIndentWidth = 2; 8099 verifyFormat("SomeClass::Constructor()\n" 8100 " : a(a)\n" 8101 " , b(b)\n" 8102 " , c(c) {}", 8103 Style); 8104 8105 Style.ConstructorInitializerIndentWidth = 0; 8106 verifyFormat("SomeClass::Constructor()\n" 8107 ": a(a)\n" 8108 ", b(b)\n" 8109 ", c(c) {}", 8110 Style); 8111 8112 Style.ConstructorInitializerAllOnOneLineOrOnePerLine = true; 8113 Style.ConstructorInitializerIndentWidth = 4; 8114 verifyFormat("SomeClass::Constructor() : aaaaaaaa(aaaaaaaa) {}", Style); 8115 verifyFormat( 8116 "SomeClass::Constructor() : aaaaa(aaaaa), aaaaa(aaaaa), aaaaa(aaaaa)\n", 8117 Style); 8118 verifyFormat( 8119 "SomeClass::Constructor()\n" 8120 " : aaaaaaaa(aaaaaaaa), aaaaaaaa(aaaaaaaa), aaaaaaaa(aaaaaaaa) {}", 8121 Style); 8122 Style.ConstructorInitializerIndentWidth = 4; 8123 Style.ColumnLimit = 60; 8124 verifyFormat("SomeClass::Constructor()\n" 8125 " : aaaaaaaa(aaaaaaaa)\n" 8126 " , aaaaaaaa(aaaaaaaa)\n" 8127 " , aaaaaaaa(aaaaaaaa) {}", 8128 Style); 8129 } 8130 8131 TEST_F(FormatTest, FormatsWithWebKitStyle) { 8132 FormatStyle Style = getWebKitStyle(); 8133 8134 // Don't indent in outer namespaces. 8135 verifyFormat("namespace outer {\n" 8136 "int i;\n" 8137 "namespace inner {\n" 8138 " int i;\n" 8139 "} // namespace inner\n" 8140 "} // namespace outer\n" 8141 "namespace other_outer {\n" 8142 "int i;\n" 8143 "}", 8144 Style); 8145 8146 // Don't indent case labels. 8147 verifyFormat("switch (variable) {\n" 8148 "case 1:\n" 8149 "case 2:\n" 8150 " doSomething();\n" 8151 " break;\n" 8152 "default:\n" 8153 " ++variable;\n" 8154 "}", 8155 Style); 8156 8157 // Wrap before binary operators. 8158 EXPECT_EQ( 8159 "void f()\n" 8160 "{\n" 8161 " if (aaaaaaaaaaaaaaaa\n" 8162 " && bbbbbbbbbbbbbbbbbbbbbbbb\n" 8163 " && (cccccccccccccccccccccccccc || dddddddddddddddddddd))\n" 8164 " return;\n" 8165 "}", 8166 format( 8167 "void f() {\n" 8168 "if (aaaaaaaaaaaaaaaa\n" 8169 "&& bbbbbbbbbbbbbbbbbbbbbbbb\n" 8170 "&& (cccccccccccccccccccccccccc || dddddddddddddddddddd))\n" 8171 "return;\n" 8172 "}", 8173 Style)); 8174 8175 // Constructor initializers are formatted one per line with the "," on the 8176 // new line. 8177 verifyFormat("Constructor()\n" 8178 " : aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 8179 " , aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaa, // break\n" 8180 " aaaaaaaaaaaaaa)\n" 8181 " , aaaaaaaaaaaaaaaaaaaaaaa()\n" 8182 "{\n" 8183 "}", 8184 Style); 8185 verifyFormat("SomeClass::Constructor()\n" 8186 " : a(a)\n" 8187 "{\n" 8188 "}", 8189 Style); 8190 EXPECT_EQ("SomeClass::Constructor()\n" 8191 " : a(a)\n" 8192 "{\n" 8193 "}", 8194 format("SomeClass::Constructor():a(a){}", Style)); 8195 verifyFormat("SomeClass::Constructor()\n" 8196 " : a(a)\n" 8197 " , b(b)\n" 8198 " , c(c)\n" 8199 "{\n" 8200 "}", Style); 8201 verifyFormat("SomeClass::Constructor()\n" 8202 " : a(a)\n" 8203 "{\n" 8204 " foo();\n" 8205 " bar();\n" 8206 "}", 8207 Style); 8208 8209 // Access specifiers should be aligned left. 8210 verifyFormat("class C {\n" 8211 "public:\n" 8212 " int i;\n" 8213 "};", 8214 Style); 8215 8216 // Do not align comments. 8217 verifyFormat("int a; // Do not\n" 8218 "double b; // align comments.", 8219 Style); 8220 8221 // Accept input's line breaks. 8222 EXPECT_EQ("if (aaaaaaaaaaaaaaa\n" 8223 " || bbbbbbbbbbbbbbb) {\n" 8224 " i++;\n" 8225 "}", 8226 format("if (aaaaaaaaaaaaaaa\n" 8227 "|| bbbbbbbbbbbbbbb) { i++; }", 8228 Style)); 8229 EXPECT_EQ("if (aaaaaaaaaaaaaaa || bbbbbbbbbbbbbbb) {\n" 8230 " i++;\n" 8231 "}", 8232 format("if (aaaaaaaaaaaaaaa || bbbbbbbbbbbbbbb) { i++; }", Style)); 8233 8234 // Don't automatically break all macro definitions (llvm.org/PR17842). 8235 verifyFormat("#define aNumber 10", Style); 8236 // However, generally keep the line breaks that the user authored. 8237 EXPECT_EQ("#define aNumber \\\n" 8238 " 10", 8239 format("#define aNumber \\\n" 8240 " 10", 8241 Style)); 8242 8243 // Keep empty and one-element array literals on a single line. 8244 verifyFormat("NSArray* a = [[NSArray alloc] initWithArray:@[]\n" 8245 " copyItems:YES];", 8246 Style); 8247 verifyFormat("NSArray* a = [[NSArray alloc] initWithArray:@[ @\"a\" ]\n" 8248 " copyItems:YES];", 8249 Style); 8250 EXPECT_EQ("NSArray* a = [[NSArray alloc] initWithArray:@[\n" 8251 " @\"a\",\n" 8252 " @\"a\"\n" 8253 " ]\n" 8254 " copyItems:YES];", 8255 format("NSArray* a = [[NSArray alloc] initWithArray:@[\n" 8256 " @\"a\",\n" 8257 " @\"a\"\n" 8258 " ]\n" 8259 " copyItems:YES];", 8260 Style)); 8261 verifyFormat( 8262 "NSArray* a = [[NSArray alloc] initWithArray:@[ @\"a\", @\"a\" ]\n" 8263 " copyItems:YES];", 8264 Style); 8265 } 8266 8267 TEST_F(FormatTest, FormatsLambdas) { 8268 verifyFormat("int c = [b]() mutable {\n" 8269 " return [&b] { return b++; }();\n" 8270 "}();\n"); 8271 verifyFormat("int c = [&] {\n" 8272 " [=] { return b++; }();\n" 8273 "}();\n"); 8274 verifyFormat("int c = [&, &a, a] {\n" 8275 " [=, c, &d] { return b++; }();\n" 8276 "}();\n"); 8277 verifyFormat("int c = [&a, &a, a] {\n" 8278 " [=, a, b, &c] { return b++; }();\n" 8279 "}();\n"); 8280 verifyFormat("auto c = {[&a, &a, a] {\n" 8281 " [=, a, b, &c] { return b++; }();\n" 8282 "}}\n"); 8283 verifyFormat("auto c = {[&a, &a, a] { [=, a, b, &c] {}(); }}\n"); 8284 verifyFormat("void f() {\n" 8285 " other(x.begin(), x.end(), [&](int, int) { return 1; });\n" 8286 "}\n"); 8287 verifyFormat("void f() {\n" 8288 " other(x.begin(), //\n" 8289 " x.end(), //\n" 8290 " [&](int, int) { return 1; });\n" 8291 "}\n"); 8292 verifyFormat("SomeFunction([]() { // A cool function...\n" 8293 " return 43;\n" 8294 "});"); 8295 8296 // Lambdas with return types. 8297 verifyFormat("int c = []() -> int { return 2; }();\n"); 8298 verifyFormat("int c = []() -> vector<int> { return {2}; }();\n"); 8299 verifyFormat("Foo([]() -> std::vector<int> { return {2}; }());"); 8300 verifyFormat("auto aaaaaaaa = [](int i, // break for some reason\n" 8301 " int j) -> int {\n" 8302 " return fffffffffffffffffffffffffffffffffffffff(i * j);\n" 8303 "};"); 8304 8305 // Multiple lambdas in the same parentheses change indentation rules. 8306 verifyFormat("SomeFunction([]() {\n" 8307 " int i = 42;\n" 8308 " return i;\n" 8309 " },\n" 8310 " []() {\n" 8311 " int j = 43;\n" 8312 " return j;\n" 8313 " });"); 8314 8315 // Not lambdas. 8316 verifyFormat("constexpr char hello[]{\"hello\"};"); 8317 verifyFormat("double &operator[](int i) { return 0; }\n" 8318 "int i;"); 8319 verifyFormat("std::unique_ptr<int[]> foo() {}"); 8320 verifyFormat("int i = a[a][a]->f();"); 8321 verifyFormat("int i = (*b)[a]->f();"); 8322 8323 // Other corner cases. 8324 verifyFormat("void f() {\n" 8325 " bar([]() {} // Did not respect SpacesBeforeTrailingComments\n" 8326 " );\n" 8327 "}"); 8328 8329 // Lambdas created through weird macros. 8330 verifyFormat("void f() {\n" 8331 " MACRO((const AA &a) { return 1; });\n" 8332 "}"); 8333 } 8334 8335 TEST_F(FormatTest, FormatsBlocks) { 8336 verifyFormat("int (^Block)(int, int);"); 8337 verifyFormat("int (^Block1)(int, int) = ^(int i, int j)"); 8338 verifyFormat("void (^block)(int) = ^(id test) { int i; };"); 8339 verifyFormat("void (^block)(int) = ^(int test) { int i; };"); 8340 verifyFormat("void (^block)(int) = ^id(int test) { int i; };"); 8341 verifyFormat("void (^block)(int) = ^int(int test) { int i; };"); 8342 8343 verifyFormat("foo(^{ bar(); });"); 8344 verifyFormat("foo(a, ^{ bar(); });"); 8345 8346 // FIXME: Make whitespace formatting consistent. Ask a ObjC dev how 8347 // it would ideally look. 8348 verifyFormat("[operation setCompletionBlock:^{ [self onOperationDone]; }];"); 8349 verifyFormat("int i = {[operation setCompletionBlock : ^{ [self " 8350 "onOperationDone]; }]};"); 8351 verifyFormat("[operation setCompletionBlock:^(int *i) { f(); }];"); 8352 verifyFormat("int a = [operation block:^int(int *i) { return 1; }];"); 8353 verifyFormat("[myObject doSomethingWith:arg1\n" 8354 " aaa:^int(int *a) { return 1; }\n" 8355 " bbb:f(a * b)];"); 8356 8357 verifyFormat("[operation setCompletionBlock:^{\n" 8358 " [self.delegate newDataAvailable];\n" 8359 "}];", 8360 getLLVMStyleWithColumns(60)); 8361 verifyFormat("dispatch_async(_fileIOQueue, ^{\n" 8362 " NSString *path = [self sessionFilePath];\n" 8363 " if (path) {\n" 8364 " // ...\n" 8365 " }\n" 8366 "});"); 8367 verifyFormat("[[SessionService sharedService]\n" 8368 " loadWindowWithCompletionBlock:^(SessionWindow *window) {\n" 8369 " if (window) {\n" 8370 " [self windowDidLoad:window];\n" 8371 " } else {\n" 8372 " [self errorLoadingWindow];\n" 8373 " }\n" 8374 " }];"); 8375 verifyFormat("void (^largeBlock)(void) = ^{\n" 8376 " // ...\n" 8377 "};\n", 8378 getLLVMStyleWithColumns(40)); 8379 verifyFormat("[[SessionService sharedService]\n" 8380 " loadWindowWithCompletionBlock: //\n" 8381 " ^(SessionWindow *window) {\n" 8382 " if (window) {\n" 8383 " [self windowDidLoad:window];\n" 8384 " } else {\n" 8385 " [self errorLoadingWindow];\n" 8386 " }\n" 8387 " }];", 8388 getLLVMStyleWithColumns(60)); 8389 verifyFormat("[myObject doSomethingWith:arg1\n" 8390 " firstBlock:^(Foo *a) {\n" 8391 " // ...\n" 8392 " int i;\n" 8393 " }\n" 8394 " secondBlock:^(Bar *b) {\n" 8395 " // ...\n" 8396 " int i;\n" 8397 " }\n" 8398 " thirdBlock:^Foo(Bar *b) {\n" 8399 " // ...\n" 8400 " int i;\n" 8401 " }];"); 8402 verifyFormat("[myObject doSomethingWith:arg1\n" 8403 " firstBlock:-1\n" 8404 " secondBlock:^(Bar *b) {\n" 8405 " // ...\n" 8406 " int i;\n" 8407 " }];"); 8408 8409 verifyFormat("f(^{\n" 8410 " @autoreleasepool {\n" 8411 " if (a) {\n" 8412 " g();\n" 8413 " }\n" 8414 " }\n" 8415 "});"); 8416 } 8417 8418 TEST_F(FormatTest, SupportsCRLF) { 8419 EXPECT_EQ("int a;\r\n" 8420 "int b;\r\n" 8421 "int c;\r\n", 8422 format("int a;\r\n" 8423 " int b;\r\n" 8424 " int c;\r\n", 8425 getLLVMStyle())); 8426 EXPECT_EQ("int a;\r\n" 8427 "int b;\r\n" 8428 "int c;\r\n", 8429 format("int a;\r\n" 8430 " int b;\n" 8431 " int c;\r\n", 8432 getLLVMStyle())); 8433 EXPECT_EQ("int a;\n" 8434 "int b;\n" 8435 "int c;\n", 8436 format("int a;\r\n" 8437 " int b;\n" 8438 " int c;\n", 8439 getLLVMStyle())); 8440 EXPECT_EQ("\"aaaaaaa \"\r\n" 8441 "\"bbbbbbb\";\r\n", 8442 format("\"aaaaaaa bbbbbbb\";\r\n", getLLVMStyleWithColumns(10))); 8443 EXPECT_EQ("#define A \\\r\n" 8444 " b; \\\r\n" 8445 " c; \\\r\n" 8446 " d;\r\n", 8447 format("#define A \\\r\n" 8448 " b; \\\r\n" 8449 " c; d; \r\n", 8450 getGoogleStyle())); 8451 8452 EXPECT_EQ("/*\r\n" 8453 "multi line block comments\r\n" 8454 "should not introduce\r\n" 8455 "an extra carriage return\r\n" 8456 "*/\r\n", 8457 format("/*\r\n" 8458 "multi line block comments\r\n" 8459 "should not introduce\r\n" 8460 "an extra carriage return\r\n" 8461 "*/\r\n")); 8462 } 8463 8464 TEST_F(FormatTest, MunchSemicolonAfterBlocks) { 8465 verifyFormat("MY_CLASS(C) {\n" 8466 " int i;\n" 8467 " int j;\n" 8468 "};"); 8469 } 8470 8471 TEST_F(FormatTest, ConfigurableContinuationIndentWidth) { 8472 FormatStyle TwoIndent = getLLVMStyleWithColumns(15); 8473 TwoIndent.ContinuationIndentWidth = 2; 8474 8475 EXPECT_EQ("int i =\n" 8476 " longFunction(\n" 8477 " arg);", 8478 format("int i = longFunction(arg);", TwoIndent)); 8479 8480 FormatStyle SixIndent = getLLVMStyleWithColumns(20); 8481 SixIndent.ContinuationIndentWidth = 6; 8482 8483 EXPECT_EQ("int i =\n" 8484 " longFunction(\n" 8485 " arg);", 8486 format("int i = longFunction(arg);", SixIndent)); 8487 } 8488 8489 TEST_F(FormatTest, SpacesInAngles) { 8490 FormatStyle Spaces = getLLVMStyle(); 8491 Spaces.SpacesInAngles = true; 8492 8493 verifyFormat("static_cast< int >(arg);", Spaces); 8494 verifyFormat("template < typename T0, typename T1 > void f() {}", Spaces); 8495 verifyFormat("f< int, float >();", Spaces); 8496 verifyFormat("template <> g() {}", Spaces); 8497 verifyFormat("template < std::vector< int > > f() {}", Spaces); 8498 8499 Spaces.Standard = FormatStyle::LS_Cpp03; 8500 Spaces.SpacesInAngles = true; 8501 verifyFormat("A< A< int > >();", Spaces); 8502 8503 Spaces.SpacesInAngles = false; 8504 verifyFormat("A<A<int> >();", Spaces); 8505 8506 Spaces.Standard = FormatStyle::LS_Cpp11; 8507 Spaces.SpacesInAngles = true; 8508 verifyFormat("A< A< int > >();", Spaces); 8509 8510 Spaces.SpacesInAngles = false; 8511 verifyFormat("A<A<int>>();", Spaces); 8512 } 8513 8514 TEST_F(FormatTest, HandleUnbalancedImplicitBracesAcrossPPBranches) { 8515 std::string code = "#if A\n" 8516 "#if B\n" 8517 "a.\n" 8518 "#endif\n" 8519 " a = 1;\n" 8520 "#else\n" 8521 "#endif\n" 8522 "#if C\n" 8523 "#else\n" 8524 "#endif\n"; 8525 EXPECT_EQ(code, format(code)); 8526 } 8527 8528 TEST_F(FormatTest, HandleConflictMarkers) { 8529 // Git/SVN conflict markers. 8530 EXPECT_EQ("int a;\n" 8531 "void f() {\n" 8532 " callme(some(parameter1,\n" 8533 "<<<<<<< text by the vcs\n" 8534 " parameter2),\n" 8535 "||||||| text by the vcs\n" 8536 " parameter2),\n" 8537 " parameter3,\n" 8538 "======= text by the vcs\n" 8539 " parameter2, parameter3),\n" 8540 ">>>>>>> text by the vcs\n" 8541 " otherparameter);\n", 8542 format("int a;\n" 8543 "void f() {\n" 8544 " callme(some(parameter1,\n" 8545 "<<<<<<< text by the vcs\n" 8546 " parameter2),\n" 8547 "||||||| text by the vcs\n" 8548 " parameter2),\n" 8549 " parameter3,\n" 8550 "======= text by the vcs\n" 8551 " parameter2,\n" 8552 " parameter3),\n" 8553 ">>>>>>> text by the vcs\n" 8554 " otherparameter);\n")); 8555 8556 // Perforce markers. 8557 EXPECT_EQ("void f() {\n" 8558 " function(\n" 8559 ">>>> text by the vcs\n" 8560 " parameter,\n" 8561 "==== text by the vcs\n" 8562 " parameter,\n" 8563 "==== text by the vcs\n" 8564 " parameter,\n" 8565 "<<<< text by the vcs\n" 8566 " parameter);\n", 8567 format("void f() {\n" 8568 " function(\n" 8569 ">>>> text by the vcs\n" 8570 " parameter,\n" 8571 "==== text by the vcs\n" 8572 " parameter,\n" 8573 "==== text by the vcs\n" 8574 " parameter,\n" 8575 "<<<< text by the vcs\n" 8576 " parameter);\n")); 8577 8578 EXPECT_EQ("<<<<<<<\n" 8579 "|||||||\n" 8580 "=======\n" 8581 ">>>>>>>", 8582 format("<<<<<<<\n" 8583 "|||||||\n" 8584 "=======\n" 8585 ">>>>>>>")); 8586 8587 EXPECT_EQ("<<<<<<<\n" 8588 "|||||||\n" 8589 "int i;\n" 8590 "=======\n" 8591 ">>>>>>>", 8592 format("<<<<<<<\n" 8593 "|||||||\n" 8594 "int i;\n" 8595 "=======\n" 8596 ">>>>>>>")); 8597 8598 // FIXME: Handle parsing of macros around conflict markers correctly: 8599 EXPECT_EQ("#define Macro \\\n" 8600 "<<<<<<<\n" 8601 "Something \\\n" 8602 "|||||||\n" 8603 "Else \\\n" 8604 "=======\n" 8605 "Other \\\n" 8606 ">>>>>>>\n" 8607 "End int i;\n", 8608 format("#define Macro \\\n" 8609 "<<<<<<<\n" 8610 " Something \\\n" 8611 "|||||||\n" 8612 " Else \\\n" 8613 "=======\n" 8614 " Other \\\n" 8615 ">>>>>>>\n" 8616 " End\n" 8617 "int i;\n")); 8618 } 8619 8620 } // end namespace tooling 8621 } // end namespace clang 8622