1 //===- unittest/Format/FormatTestJS.cpp - Formatting unit tests for JS ----===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "FormatTestUtils.h" 11 #include "clang/Format/Format.h" 12 #include "llvm/Support/Debug.h" 13 #include "gtest/gtest.h" 14 15 #define DEBUG_TYPE "format-test" 16 17 namespace clang { 18 namespace format { 19 20 class FormatTestJS : public ::testing::Test { 21 protected: 22 static std::string format(llvm::StringRef Code, unsigned Offset, 23 unsigned Length, const FormatStyle &Style) { 24 DEBUG(llvm::errs() << "---\n"); 25 DEBUG(llvm::errs() << Code << "\n\n"); 26 std::vector<tooling::Range> Ranges(1, tooling::Range(Offset, Length)); 27 FormattingAttemptStatus Status; 28 tooling::Replacements Replaces = 29 reformat(Style, Code, Ranges, "<stdin>", &Status); 30 EXPECT_TRUE(Status.FormatComplete); 31 auto Result = applyAllReplacements(Code, Replaces); 32 EXPECT_TRUE(static_cast<bool>(Result)); 33 DEBUG(llvm::errs() << "\n" << *Result << "\n\n"); 34 return *Result; 35 } 36 37 static std::string format( 38 llvm::StringRef Code, 39 const FormatStyle &Style = getGoogleStyle(FormatStyle::LK_JavaScript)) { 40 return format(Code, 0, Code.size(), Style); 41 } 42 43 static FormatStyle getGoogleJSStyleWithColumns(unsigned ColumnLimit) { 44 FormatStyle Style = getGoogleStyle(FormatStyle::LK_JavaScript); 45 Style.ColumnLimit = ColumnLimit; 46 return Style; 47 } 48 49 static void verifyFormat( 50 llvm::StringRef Code, 51 const FormatStyle &Style = getGoogleStyle(FormatStyle::LK_JavaScript)) { 52 std::string Result = format(test::messUp(Code), Style); 53 EXPECT_EQ(Code.str(), Result) << "Formatted:\n" << Result; 54 } 55 56 static void verifyFormat( 57 llvm::StringRef Expected, 58 llvm::StringRef Code, 59 const FormatStyle &Style = getGoogleStyle(FormatStyle::LK_JavaScript)) { 60 std::string Result = format(Code, Style); 61 EXPECT_EQ(Expected.str(), Result) << "Formatted:\n" << Result; 62 } 63 }; 64 65 TEST_F(FormatTestJS, BlockComments) { 66 verifyFormat("/* aaaaaaaaaaaaa */ aaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 67 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 68 } 69 70 TEST_F(FormatTestJS, UnderstandsJavaScriptOperators) { 71 verifyFormat("a == = b;"); 72 verifyFormat("a != = b;"); 73 74 verifyFormat("a === b;"); 75 verifyFormat("aaaaaaa ===\n b;", getGoogleJSStyleWithColumns(10)); 76 verifyFormat("a !== b;"); 77 verifyFormat("aaaaaaa !==\n b;", getGoogleJSStyleWithColumns(10)); 78 verifyFormat("if (a + b + c +\n" 79 " d !==\n" 80 " e + f + g)\n" 81 " q();", 82 getGoogleJSStyleWithColumns(20)); 83 84 verifyFormat("a >> >= b;"); 85 86 verifyFormat("a >>> b;"); 87 verifyFormat("aaaaaaa >>>\n b;", getGoogleJSStyleWithColumns(10)); 88 verifyFormat("a >>>= b;"); 89 verifyFormat("aaaaaaa >>>=\n b;", getGoogleJSStyleWithColumns(10)); 90 verifyFormat("if (a + b + c +\n" 91 " d >>>\n" 92 " e + f + g)\n" 93 " q();", 94 getGoogleJSStyleWithColumns(20)); 95 verifyFormat("var x = aaaaaaaaaa ?\n" 96 " bbbbbb :\n" 97 " ccc;", 98 getGoogleJSStyleWithColumns(20)); 99 100 verifyFormat("var b = a.map((x) => x + 1);"); 101 verifyFormat("return ('aaa') in bbbb;"); 102 verifyFormat("var x = aaaaaaaaaaaaaaaaaaaaaaaaa() in\n" 103 " aaaa.aaaaaa.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 104 FormatStyle Style = getGoogleJSStyleWithColumns(80); 105 Style.AlignOperands = true; 106 verifyFormat("var x = aaaaaaaaaaaaaaaaaaaaaaaaa() in\n" 107 " aaaa.aaaaaa.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;", 108 Style); 109 Style.BreakBeforeBinaryOperators = FormatStyle::BOS_All; 110 verifyFormat("var x = aaaaaaaaaaaaaaaaaaaaaaaaa()\n" 111 " in aaaa.aaaaaa.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;", 112 Style); 113 114 // ES6 spread operator. 115 verifyFormat("someFunction(...a);"); 116 verifyFormat("var x = [1, ...a, 2];"); 117 } 118 119 TEST_F(FormatTestJS, UnderstandsAmpAmp) { 120 verifyFormat("e && e.SomeFunction();"); 121 } 122 123 TEST_F(FormatTestJS, LiteralOperatorsCanBeKeywords) { 124 verifyFormat("not.and.or.not_eq = 1;"); 125 } 126 127 TEST_F(FormatTestJS, ReservedWords) { 128 // JavaScript reserved words (aka keywords) are only illegal when used as 129 // Identifiers, but are legal as IdentifierNames. 130 verifyFormat("x.class.struct = 1;"); 131 verifyFormat("x.case = 1;"); 132 verifyFormat("x.interface = 1;"); 133 verifyFormat("x.for = 1;"); 134 verifyFormat("x.of() = 1;"); 135 verifyFormat("of(null);"); 136 verifyFormat("import {of} from 'x';"); 137 verifyFormat("x.in() = 1;"); 138 verifyFormat("x.let() = 1;"); 139 verifyFormat("x.var() = 1;"); 140 verifyFormat("x.for() = 1;"); 141 verifyFormat("x.as() = 1;"); 142 verifyFormat("x = {\n" 143 " a: 12,\n" 144 " interface: 1,\n" 145 " switch: 1,\n" 146 "};"); 147 verifyFormat("var struct = 2;"); 148 verifyFormat("var union = 2;"); 149 verifyFormat("var interface = 2;"); 150 verifyFormat("interface = 2;"); 151 verifyFormat("x = interface instanceof y;"); 152 } 153 154 TEST_F(FormatTestJS, ReservedWordsMethods) { 155 verifyFormat( 156 "class X {\n" 157 " delete() {\n" 158 " x();\n" 159 " }\n" 160 " interface() {\n" 161 " x();\n" 162 " }\n" 163 " let() {\n" 164 " x();\n" 165 " }\n" 166 "}\n"); 167 } 168 169 TEST_F(FormatTestJS, CppKeywords) { 170 // Make sure we don't mess stuff up because of C++ keywords. 171 verifyFormat("return operator && (aa);"); 172 // .. or QT ones. 173 verifyFormat("slots: Slot[];"); 174 } 175 176 TEST_F(FormatTestJS, ES6DestructuringAssignment) { 177 verifyFormat("var [a, b, c] = [1, 2, 3];"); 178 verifyFormat("const [a, b, c] = [1, 2, 3];"); 179 verifyFormat("let [a, b, c] = [1, 2, 3];"); 180 verifyFormat("var {a, b} = {a: 1, b: 2};"); 181 verifyFormat("let {a, b} = {a: 1, b: 2};"); 182 } 183 184 TEST_F(FormatTestJS, ContainerLiterals) { 185 verifyFormat("var x = {\n" 186 " y: function(a) {\n" 187 " return a;\n" 188 " }\n" 189 "};"); 190 verifyFormat("return {\n" 191 " link: function() {\n" 192 " f(); //\n" 193 " }\n" 194 "};"); 195 verifyFormat("return {\n" 196 " a: a,\n" 197 " link: function() {\n" 198 " f(); //\n" 199 " }\n" 200 "};"); 201 verifyFormat("return {\n" 202 " a: a,\n" 203 " link: function() {\n" 204 " f(); //\n" 205 " },\n" 206 " link: function() {\n" 207 " f(); //\n" 208 " }\n" 209 "};"); 210 verifyFormat("var stuff = {\n" 211 " // comment for update\n" 212 " update: false,\n" 213 " // comment for modules\n" 214 " modules: false,\n" 215 " // comment for tasks\n" 216 " tasks: false\n" 217 "};"); 218 verifyFormat("return {\n" 219 " 'finish':\n" 220 " //\n" 221 " a\n" 222 "};"); 223 verifyFormat("var obj = {\n" 224 " fooooooooo: function(x) {\n" 225 " return x.zIsTooLongForOneLineWithTheDeclarationLine();\n" 226 " }\n" 227 "};"); 228 // Simple object literal, as opposed to enum style below. 229 verifyFormat("var obj = {a: 123};"); 230 // Enum style top level assignment. 231 verifyFormat("X = {\n a: 123\n};"); 232 verifyFormat("X.Y = {\n a: 123\n};"); 233 // But only on the top level, otherwise its a plain object literal assignment. 234 verifyFormat("function x() {\n" 235 " y = {z: 1};\n" 236 "}"); 237 verifyFormat("x = foo && {a: 123};"); 238 239 // Arrow functions in object literals. 240 verifyFormat("var x = {\n" 241 " y: (a) => {\n" 242 " return a;\n" 243 " }\n" 244 "};"); 245 verifyFormat("var x = {y: (a) => a};"); 246 247 // Methods in object literals. 248 verifyFormat("var x = {\n" 249 " y(a: string): number {\n" 250 " return a;\n" 251 " }\n" 252 "};"); 253 verifyFormat("var x = {\n" 254 " y(a: string) {\n" 255 " return a;\n" 256 " }\n" 257 "};"); 258 259 // Computed keys. 260 verifyFormat("var x = {[a]: 1, b: 2, [c]: 3};"); 261 verifyFormat("var x = {\n" 262 " [a]: 1,\n" 263 " b: 2,\n" 264 " [c]: 3,\n" 265 "};"); 266 267 // Object literals can leave out labels. 268 verifyFormat("f({a}, () => {\n" 269 " g(); //\n" 270 "});"); 271 272 // Keys can be quoted. 273 verifyFormat("var x = {\n" 274 " a: a,\n" 275 " b: b,\n" 276 " 'c': c,\n" 277 "};"); 278 279 // Dict literals can skip the label names. 280 verifyFormat("var x = {\n" 281 " aaa,\n" 282 " aaa,\n" 283 " aaa,\n" 284 "};"); 285 verifyFormat("return {\n" 286 " a,\n" 287 " b: 'b',\n" 288 " c,\n" 289 "};"); 290 } 291 292 TEST_F(FormatTestJS, MethodsInObjectLiterals) { 293 verifyFormat("var o = {\n" 294 " value: 'test',\n" 295 " get value() { // getter\n" 296 " return this.value;\n" 297 " }\n" 298 "};"); 299 verifyFormat("var o = {\n" 300 " value: 'test',\n" 301 " set value(val) { // setter\n" 302 " this.value = val;\n" 303 " }\n" 304 "};"); 305 verifyFormat("var o = {\n" 306 " value: 'test',\n" 307 " someMethod(val) { // method\n" 308 " doSomething(this.value + val);\n" 309 " }\n" 310 "};"); 311 verifyFormat("var o = {\n" 312 " someMethod(val) { // method\n" 313 " doSomething(this.value + val);\n" 314 " },\n" 315 " someOtherMethod(val) { // method\n" 316 " doSomething(this.value + val);\n" 317 " }\n" 318 "};"); 319 } 320 321 TEST_F(FormatTestJS, GettersSettersVisibilityKeywords) { 322 // Don't break after "protected" 323 verifyFormat("class X {\n" 324 " protected get getter():\n" 325 " number {\n" 326 " return 1;\n" 327 " }\n" 328 "}", 329 getGoogleJSStyleWithColumns(12)); 330 // Don't break after "get" 331 verifyFormat("class X {\n" 332 " protected get someReallyLongGetterName():\n" 333 " number {\n" 334 " return 1;\n" 335 " }\n" 336 "}", 337 getGoogleJSStyleWithColumns(40)); 338 } 339 340 TEST_F(FormatTestJS, SpacesInContainerLiterals) { 341 verifyFormat("var arr = [1, 2, 3];"); 342 verifyFormat("f({a: 1, b: 2, c: 3});"); 343 344 verifyFormat("var object_literal_with_long_name = {\n" 345 " a: 'aaaaaaaaaaaaaaaaaa',\n" 346 " b: 'bbbbbbbbbbbbbbbbbb'\n" 347 "};"); 348 349 verifyFormat("f({a: 1, b: 2, c: 3});", 350 getChromiumStyle(FormatStyle::LK_JavaScript)); 351 verifyFormat("f({'a': [{}]});"); 352 } 353 354 TEST_F(FormatTestJS, SingleQuotedStrings) { 355 verifyFormat("this.function('', true);"); 356 } 357 358 TEST_F(FormatTestJS, GoogScopes) { 359 verifyFormat("goog.scope(function() {\n" 360 "var x = a.b;\n" 361 "var y = c.d;\n" 362 "}); // goog.scope"); 363 verifyFormat("goog.scope(function() {\n" 364 "// test\n" 365 "var x = 0;\n" 366 "// test\n" 367 "});"); 368 } 369 370 TEST_F(FormatTestJS, IIFEs) { 371 // Internal calling parens; no semi. 372 verifyFormat("(function() {\n" 373 "var a = 1;\n" 374 "}())"); 375 // External calling parens; no semi. 376 verifyFormat("(function() {\n" 377 "var b = 2;\n" 378 "})()"); 379 // Internal calling parens; with semi. 380 verifyFormat("(function() {\n" 381 "var c = 3;\n" 382 "}());"); 383 // External calling parens; with semi. 384 verifyFormat("(function() {\n" 385 "var d = 4;\n" 386 "})();"); 387 } 388 389 TEST_F(FormatTestJS, GoogModules) { 390 verifyFormat("goog.module('this.is.really.absurdly.long');", 391 getGoogleJSStyleWithColumns(40)); 392 verifyFormat("goog.require('this.is.really.absurdly.long');", 393 getGoogleJSStyleWithColumns(40)); 394 verifyFormat("goog.provide('this.is.really.absurdly.long');", 395 getGoogleJSStyleWithColumns(40)); 396 verifyFormat("var long = goog.require('this.is.really.absurdly.long');", 397 getGoogleJSStyleWithColumns(40)); 398 verifyFormat("goog.setTestOnly('this.is.really.absurdly.long');", 399 getGoogleJSStyleWithColumns(40)); 400 verifyFormat("goog.forwardDeclare('this.is.really.absurdly.long');", 401 getGoogleJSStyleWithColumns(40)); 402 403 // These should be wrapped normally. 404 verifyFormat( 405 "var MyLongClassName =\n" 406 " goog.module.get('my.long.module.name.followedBy.MyLongClassName');"); 407 } 408 409 TEST_F(FormatTestJS, FormatsNamespaces) { 410 verifyFormat("namespace Foo {\n" 411 " export let x = 1;\n" 412 "}\n"); 413 verifyFormat("declare namespace Foo {\n" 414 " export let x: number;\n" 415 "}\n"); 416 } 417 418 TEST_F(FormatTestJS, NamespacesMayNotWrap) { 419 verifyFormat("declare namespace foobarbaz {\n" 420 "}\n", getGoogleJSStyleWithColumns(18)); 421 verifyFormat("declare module foobarbaz {\n" 422 "}\n", getGoogleJSStyleWithColumns(15)); 423 verifyFormat("namespace foobarbaz {\n" 424 "}\n", getGoogleJSStyleWithColumns(10)); 425 verifyFormat("module foobarbaz {\n" 426 "}\n", getGoogleJSStyleWithColumns(7)); 427 } 428 429 TEST_F(FormatTestJS, AmbientDeclarations) { 430 FormatStyle NineCols = getGoogleJSStyleWithColumns(9); 431 verifyFormat( 432 "declare class\n" 433 " X {}", 434 NineCols); 435 verifyFormat( 436 "declare function\n" 437 "x();", // TODO(martinprobst): should ideally be indented. 438 NineCols); 439 verifyFormat("declare function foo();\n" 440 "let x = 1;\n"); 441 verifyFormat("declare function foo(): string;\n" 442 "let x = 1;\n"); 443 verifyFormat("declare function foo(): {x: number};\n" 444 "let x = 1;\n"); 445 verifyFormat("declare class X {}\n" 446 "let x = 1;\n"); 447 verifyFormat("declare interface Y {}\n" 448 "let x = 1;\n"); 449 verifyFormat( 450 "declare enum X {\n" 451 "}", 452 NineCols); 453 verifyFormat( 454 "declare let\n" 455 " x: number;", 456 NineCols); 457 } 458 459 TEST_F(FormatTestJS, FormatsFreestandingFunctions) { 460 verifyFormat("function outer1(a, b) {\n" 461 " function inner1(a, b) {\n" 462 " return a;\n" 463 " }\n" 464 " inner1(a, b);\n" 465 "}\n" 466 "function outer2(a, b) {\n" 467 " function inner2(a, b) {\n" 468 " return a;\n" 469 " }\n" 470 " inner2(a, b);\n" 471 "}"); 472 verifyFormat("function f() {}"); 473 } 474 475 TEST_F(FormatTestJS, GeneratorFunctions) { 476 verifyFormat("function* f() {\n" 477 " let x = 1;\n" 478 " yield x;\n" 479 " yield* something();\n" 480 " yield [1, 2];\n" 481 " yield {a: 1};\n" 482 "}"); 483 verifyFormat("function*\n" 484 " f() {\n" 485 "}", 486 getGoogleJSStyleWithColumns(8)); 487 verifyFormat("export function* f() {\n" 488 " yield 1;\n" 489 "}\n"); 490 verifyFormat("class X {\n" 491 " * generatorMethod() {\n" 492 " yield x;\n" 493 " }\n" 494 "}"); 495 verifyFormat("var x = {\n" 496 " a: function*() {\n" 497 " //\n" 498 " }\n" 499 "}\n"); 500 } 501 502 TEST_F(FormatTestJS, AsyncFunctions) { 503 verifyFormat("async function f() {\n" 504 " let x = 1;\n" 505 " return fetch(x);\n" 506 "}"); 507 verifyFormat("async function f() {\n" 508 " return 1;\n" 509 "}\n" 510 "\n" 511 "function a() {\n" 512 " return 1;\n" 513 "}\n", 514 " async function f() {\n" 515 " return 1;\n" 516 "}\n" 517 "\n" 518 " function a() {\n" 519 " return 1;\n" 520 "} \n"); 521 verifyFormat("async function* f() {\n" 522 " yield fetch(x);\n" 523 "}"); 524 verifyFormat("export async function f() {\n" 525 " return fetch(x);\n" 526 "}"); 527 verifyFormat("let x = async () => f();"); 528 verifyFormat("let x = async function() {\n" 529 " f();\n" 530 "};"); 531 verifyFormat("let x = async();"); 532 verifyFormat("class X {\n" 533 " async asyncMethod() {\n" 534 " return fetch(1);\n" 535 " }\n" 536 "}"); 537 verifyFormat("function initialize() {\n" 538 " // Comment.\n" 539 " return async.then();\n" 540 "}\n"); 541 } 542 543 TEST_F(FormatTestJS, ArrayLiterals) { 544 verifyFormat("var aaaaa: List<SomeThing> =\n" 545 " [new SomeThingAAAAAAAAAAAA(), new SomeThingBBBBBBBBB()];"); 546 verifyFormat("return [\n" 547 " aaaaaaaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbbbbbbbbbbbbbbbbbbbb,\n" 548 " ccccccccccccccccccccccccccc\n" 549 "];"); 550 verifyFormat("return [\n" 551 " aaaa().bbbbbbbb('A'),\n" 552 " aaaa().bbbbbbbb('B'),\n" 553 " aaaa().bbbbbbbb('C'),\n" 554 "];"); 555 verifyFormat("var someVariable = SomeFunction([\n" 556 " aaaaaaaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbbbbbbbbbbbbbbbbbbbb,\n" 557 " ccccccccccccccccccccccccccc\n" 558 "]);"); 559 verifyFormat("var someVariable = SomeFunction([\n" 560 " [aaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbbbbbbbbbbbbbbb],\n" 561 "]);", 562 getGoogleJSStyleWithColumns(51)); 563 verifyFormat("var someVariable = SomeFunction(aaaa, [\n" 564 " aaaaaaaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbbbbbbbbbbbbbbbbbbbb,\n" 565 " ccccccccccccccccccccccccccc\n" 566 "]);"); 567 verifyFormat("var someVariable = SomeFunction(\n" 568 " aaaa,\n" 569 " [\n" 570 " aaaaaaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbbbbbbbbbbbbbbbbbbb,\n" 571 " cccccccccccccccccccccccccc\n" 572 " ],\n" 573 " aaaa);"); 574 verifyFormat("var aaaa = aaaaa || // wrap\n" 575 " [];"); 576 577 verifyFormat("someFunction([], {a: a});"); 578 579 verifyFormat("var string = [\n" 580 " 'aaaaaa',\n" 581 " 'bbbbbb',\n" 582 "].join('+');"); 583 } 584 585 TEST_F(FormatTestJS, ColumnLayoutForArrayLiterals) { 586 verifyFormat("var array = [\n" 587 " a, a, a, a, a, a, a, a, a, a, a, a, a, a, a,\n" 588 " a, a, a, a, a, a, a, a, a, a, a, a, a, a, a,\n" 589 "];"); 590 verifyFormat("var array = someFunction([\n" 591 " a, a, a, a, a, a, a, a, a, a, a, a, a, a, a,\n" 592 " a, a, a, a, a, a, a, a, a, a, a, a, a, a, a,\n" 593 "]);"); 594 } 595 596 TEST_F(FormatTestJS, FunctionLiterals) { 597 FormatStyle Style = getGoogleStyle(FormatStyle::LK_JavaScript); 598 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Inline; 599 verifyFormat("doFoo(function() {});"); 600 verifyFormat("doFoo(function() { return 1; });", Style); 601 verifyFormat("var func = function() {\n" 602 " return 1;\n" 603 "};"); 604 verifyFormat("var func = //\n" 605 " function() {\n" 606 " return 1;\n" 607 "};"); 608 verifyFormat("return {\n" 609 " body: {\n" 610 " setAttribute: function(key, val) { this[key] = val; },\n" 611 " getAttribute: function(key) { return this[key]; },\n" 612 " style: {direction: ''}\n" 613 " }\n" 614 "};", 615 Style); 616 verifyFormat("abc = xyz ? function() {\n" 617 " return 1;\n" 618 "} : function() {\n" 619 " return -1;\n" 620 "};"); 621 622 verifyFormat("var closure = goog.bind(\n" 623 " function() { // comment\n" 624 " foo();\n" 625 " bar();\n" 626 " },\n" 627 " this, arg1IsReallyLongAndNeedsLineBreaks,\n" 628 " arg3IsReallyLongAndNeedsLineBreaks);"); 629 verifyFormat("var closure = goog.bind(function() { // comment\n" 630 " foo();\n" 631 " bar();\n" 632 "}, this);"); 633 verifyFormat("return {\n" 634 " a: 'E',\n" 635 " b: function() {\n" 636 " return function() {\n" 637 " f(); //\n" 638 " };\n" 639 " }\n" 640 "};"); 641 verifyFormat("{\n" 642 " var someVariable = function(x) {\n" 643 " return x.zIsTooLongForOneLineWithTheDeclarationLine();\n" 644 " };\n" 645 "}"); 646 verifyFormat("someLooooooooongFunction(\n" 647 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 648 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 649 " function(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n" 650 " // code\n" 651 " });"); 652 653 verifyFormat("return {\n" 654 " a: function SomeFunction() {\n" 655 " // ...\n" 656 " return 1;\n" 657 " }\n" 658 "};"); 659 verifyFormat("this.someObject.doSomething(aaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 660 " .then(goog.bind(function(aaaaaaaaaaa) {\n" 661 " someFunction();\n" 662 " someFunction();\n" 663 " }, this), aaaaaaaaaaaaaaaaa);"); 664 665 verifyFormat("someFunction(goog.bind(function() {\n" 666 " doSomething();\n" 667 " doSomething();\n" 668 "}, this), goog.bind(function() {\n" 669 " doSomething();\n" 670 " doSomething();\n" 671 "}, this));"); 672 673 verifyFormat("SomeFunction(function() {\n" 674 " foo();\n" 675 " bar();\n" 676 "}.bind(this));"); 677 678 // FIXME: This is bad, we should be wrapping before "function() {". 679 verifyFormat("someFunction(function() {\n" 680 " doSomething(); // break\n" 681 "})\n" 682 " .doSomethingElse(\n" 683 " // break\n" 684 " );"); 685 686 Style.ColumnLimit = 33; 687 verifyFormat("f({a: function() { return 1; }});", Style); 688 Style.ColumnLimit = 32; 689 verifyFormat("f({\n" 690 " a: function() { return 1; }\n" 691 "});", 692 Style); 693 694 } 695 696 TEST_F(FormatTestJS, InliningFunctionLiterals) { 697 FormatStyle Style = getGoogleStyle(FormatStyle::LK_JavaScript); 698 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Inline; 699 verifyFormat("var func = function() {\n" 700 " return 1;\n" 701 "};", 702 Style); 703 verifyFormat("var func = doSomething(function() { return 1; });", Style); 704 verifyFormat("var outer = function() {\n" 705 " var inner = function() { return 1; }\n" 706 "};", 707 Style); 708 verifyFormat("function outer1(a, b) {\n" 709 " function inner1(a, b) { return a; }\n" 710 "}", 711 Style); 712 713 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_All; 714 verifyFormat("var func = function() { return 1; };", Style); 715 verifyFormat("var func = doSomething(function() { return 1; });", Style); 716 verifyFormat( 717 "var outer = function() { var inner = function() { return 1; } };", 718 Style); 719 verifyFormat("function outer1(a, b) {\n" 720 " function inner1(a, b) { return a; }\n" 721 "}", 722 Style); 723 724 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_None; 725 verifyFormat("var func = function() {\n" 726 " return 1;\n" 727 "};", 728 Style); 729 verifyFormat("var func = doSomething(function() {\n" 730 " return 1;\n" 731 "});", 732 Style); 733 verifyFormat("var outer = function() {\n" 734 " var inner = function() {\n" 735 " return 1;\n" 736 " }\n" 737 "};", 738 Style); 739 verifyFormat("function outer1(a, b) {\n" 740 " function inner1(a, b) {\n" 741 " return a;\n" 742 " }\n" 743 "}", 744 Style); 745 746 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Empty; 747 verifyFormat("var func = function() {\n" 748 " return 1;\n" 749 "};", 750 Style); 751 } 752 753 TEST_F(FormatTestJS, MultipleFunctionLiterals) { 754 FormatStyle Style = getGoogleStyle(FormatStyle::LK_JavaScript); 755 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_All; 756 verifyFormat("promise.then(\n" 757 " function success() {\n" 758 " doFoo();\n" 759 " doBar();\n" 760 " },\n" 761 " function error() {\n" 762 " doFoo();\n" 763 " doBaz();\n" 764 " },\n" 765 " []);\n"); 766 verifyFormat("promise.then(\n" 767 " function success() {\n" 768 " doFoo();\n" 769 " doBar();\n" 770 " },\n" 771 " [],\n" 772 " function error() {\n" 773 " doFoo();\n" 774 " doBaz();\n" 775 " });\n"); 776 verifyFormat("promise.then(\n" 777 " [],\n" 778 " function success() {\n" 779 " doFoo();\n" 780 " doBar();\n" 781 " },\n" 782 " function error() {\n" 783 " doFoo();\n" 784 " doBaz();\n" 785 " });\n"); 786 787 verifyFormat("getSomeLongPromise()\n" 788 " .then(function(value) { body(); })\n" 789 " .thenCatch(function(error) {\n" 790 " body();\n" 791 " body();\n" 792 " });", 793 Style); 794 verifyFormat("getSomeLongPromise()\n" 795 " .then(function(value) {\n" 796 " body();\n" 797 " body();\n" 798 " })\n" 799 " .thenCatch(function(error) {\n" 800 " body();\n" 801 " body();\n" 802 " });"); 803 804 verifyFormat("getSomeLongPromise()\n" 805 " .then(function(value) { body(); })\n" 806 " .thenCatch(function(error) { body(); });", 807 Style); 808 809 verifyFormat("return [aaaaaaaaaaaaaaaaaaaaaa]\n" 810 " .aaaaaaa(function() {\n" 811 " //\n" 812 " })\n" 813 " .bbbbbb();"); 814 } 815 816 TEST_F(FormatTestJS, ArrowFunctions) { 817 verifyFormat("var x = (a) => {\n" 818 " return a;\n" 819 "};"); 820 verifyFormat("var x = (a) => {\n" 821 " function y() {\n" 822 " return 42;\n" 823 " }\n" 824 " return a;\n" 825 "};"); 826 verifyFormat("var x = (a: type): {some: type} => {\n" 827 " return a;\n" 828 "};"); 829 verifyFormat("var x = (a) => a;"); 830 verifyFormat("return () => [];"); 831 verifyFormat("var aaaaaaaaaaaaaaaaaaaa = {\n" 832 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa:\n" 833 " (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 834 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) =>\n" 835 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 836 "};"); 837 verifyFormat("var a = a.aaaaaaa(\n" 838 " (a: a) => aaaaaaaaaaaaaaaaaaaaaaaaa(bbbbbbbbb) &&\n" 839 " aaaaaaaaaaaaaaaaaaaaaaaaa(bbbbbbb));"); 840 verifyFormat("var a = a.aaaaaaa(\n" 841 " (a: a) => aaaaaaaaaaaaaaaaaaaaa(bbbbbbbbb) ?\n" 842 " aaaaaaaaaaaaaaaaaaaaa(bbbbbbb) :\n" 843 " aaaaaaaaaaaaaaaaaaaaa(bbbbbbb));"); 844 845 // FIXME: This is bad, we should be wrapping before "() => {". 846 verifyFormat("someFunction(() => {\n" 847 " doSomething(); // break\n" 848 "})\n" 849 " .doSomethingElse(\n" 850 " // break\n" 851 " );"); 852 } 853 854 TEST_F(FormatTestJS, ReturnStatements) { 855 verifyFormat("function() {\n" 856 " return [hello, world];\n" 857 "}"); 858 } 859 860 TEST_F(FormatTestJS, ForLoops) { 861 verifyFormat("for (var i in [2, 3]) {\n" 862 "}"); 863 verifyFormat("for (var i of [2, 3]) {\n" 864 "}"); 865 verifyFormat("for (let {a, b} of x) {\n" 866 "}"); 867 verifyFormat("for (let {a, b} in x) {\n" 868 "}"); 869 } 870 871 TEST_F(FormatTestJS, WrapRespectsAutomaticSemicolonInsertion) { 872 // The following statements must not wrap, as otherwise the program meaning 873 // would change due to automatic semicolon insertion. 874 // See http://www.ecma-international.org/ecma-262/5.1/#sec-7.9.1. 875 verifyFormat("return aaaaa;", getGoogleJSStyleWithColumns(10)); 876 verifyFormat("return /* hello! */ aaaaa;", getGoogleJSStyleWithColumns(10)); 877 verifyFormat("continue aaaaa;", getGoogleJSStyleWithColumns(10)); 878 verifyFormat("continue /* hello! */ aaaaa;", getGoogleJSStyleWithColumns(10)); 879 verifyFormat("break aaaaa;", getGoogleJSStyleWithColumns(10)); 880 verifyFormat("throw aaaaa;", getGoogleJSStyleWithColumns(10)); 881 verifyFormat("aaaaaaaaa++;", getGoogleJSStyleWithColumns(10)); 882 verifyFormat("aaaaaaaaa--;", getGoogleJSStyleWithColumns(10)); 883 verifyFormat("return [\n" 884 " aaa\n" 885 "];", 886 getGoogleJSStyleWithColumns(12)); 887 } 888 889 TEST_F(FormatTestJS, AutomaticSemicolonInsertionHeuristic) { 890 verifyFormat("a\n" 891 "b;", 892 " a \n" 893 " b ;"); 894 verifyFormat("a()\n" 895 "b;", 896 " a ()\n" 897 " b ;"); 898 verifyFormat("a[b]\n" 899 "c;", 900 "a [b]\n" 901 "c ;"); 902 verifyFormat("1\n" 903 "a;", 904 "1 \n" 905 "a ;"); 906 verifyFormat("a\n" 907 "1;", 908 "a \n" 909 "1 ;"); 910 verifyFormat("a\n" 911 "'x';", 912 "a \n" 913 " 'x';"); 914 verifyFormat("a++\n" 915 "b;", 916 "a ++\n" 917 "b ;"); 918 verifyFormat("a\n" 919 "!b && c;", 920 "a \n" 921 " ! b && c;"); 922 verifyFormat("a\n" 923 "if (1) f();", 924 " a\n" 925 " if (1) f();"); 926 verifyFormat("a\n" 927 "class X {}", 928 " a\n" 929 " class X {}"); 930 verifyFormat("var a", "var\n" 931 "a"); 932 verifyFormat("x instanceof String", "x\n" 933 "instanceof\n" 934 "String"); 935 verifyFormat("function f(@Foo bar) {}", "function f(@Foo\n" 936 " bar) {}"); 937 verifyFormat("a = true\n" 938 "return 1", 939 "a = true\n" 940 " return 1"); 941 verifyFormat("a = 's'\n" 942 "return 1", 943 "a = 's'\n" 944 " return 1"); 945 verifyFormat("a = null\n" 946 "return 1", 947 "a = null\n" 948 " return 1"); 949 // Below "class Y {}" should ideally be on its own line. 950 verifyFormat( 951 "x = {\n" 952 " a: 1\n" 953 "} class Y {}", 954 " x = {a : 1}\n" 955 " class Y { }"); 956 verifyFormat( 957 "if (x) {\n" 958 "}\n" 959 "return 1", 960 "if (x) {}\n" 961 " return 1"); 962 verifyFormat( 963 "if (x) {\n" 964 "}\n" 965 "class X {}", 966 "if (x) {}\n" 967 " class X {}"); 968 } 969 970 TEST_F(FormatTestJS, ImportExportASI) { 971 verifyFormat( 972 "import {x} from 'y'\n" 973 "export function z() {}", 974 "import {x} from 'y'\n" 975 " export function z() {}"); 976 // Below "class Y {}" should ideally be on its own line. 977 verifyFormat( 978 "export {x} class Y {}", 979 " export {x}\n" 980 " class Y {\n}"); 981 verifyFormat( 982 "if (x) {\n" 983 "}\n" 984 "export class Y {}", 985 "if ( x ) { }\n" 986 " export class Y {}"); 987 } 988 989 TEST_F(FormatTestJS, ClosureStyleCasts) { 990 verifyFormat("var x = /** @type {foo} */ (bar);"); 991 } 992 993 TEST_F(FormatTestJS, TryCatch) { 994 verifyFormat("try {\n" 995 " f();\n" 996 "} catch (e) {\n" 997 " g();\n" 998 "} finally {\n" 999 " h();\n" 1000 "}"); 1001 1002 // But, of course, "catch" is a perfectly fine function name in JavaScript. 1003 verifyFormat("someObject.catch();"); 1004 verifyFormat("someObject.new();"); 1005 verifyFormat("someObject.delete();"); 1006 } 1007 1008 TEST_F(FormatTestJS, StringLiteralConcatenation) { 1009 verifyFormat("var literal = 'hello ' +\n" 1010 " 'world';"); 1011 } 1012 1013 TEST_F(FormatTestJS, RegexLiteralClassification) { 1014 // Regex literals. 1015 verifyFormat("var regex = /abc/;"); 1016 verifyFormat("f(/abc/);"); 1017 verifyFormat("f(abc, /abc/);"); 1018 verifyFormat("some_map[/abc/];"); 1019 verifyFormat("var x = a ? /abc/ : /abc/;"); 1020 verifyFormat("for (var i = 0; /abc/.test(s[i]); i++) {\n}"); 1021 verifyFormat("var x = !/abc/.test(y);"); 1022 verifyFormat("var x = foo()! / 10;"); 1023 verifyFormat("var x = a && /abc/.test(y);"); 1024 verifyFormat("var x = a || /abc/.test(y);"); 1025 verifyFormat("var x = a + /abc/.search(y);"); 1026 verifyFormat("/abc/.search(y);"); 1027 verifyFormat("var regexs = {/abc/, /abc/};"); 1028 verifyFormat("return /abc/;"); 1029 1030 // Not regex literals. 1031 verifyFormat("var a = a / 2 + b / 3;"); 1032 verifyFormat("var a = a++ / 2;"); 1033 // Prefix unary can operate on regex literals, not that it makes sense. 1034 verifyFormat("var a = ++/a/;"); 1035 1036 // This is a known issue, regular expressions are incorrectly detected if 1037 // directly following a closing parenthesis. 1038 verifyFormat("if (foo) / bar /.exec(baz);"); 1039 } 1040 1041 TEST_F(FormatTestJS, RegexLiteralSpecialCharacters) { 1042 verifyFormat("var regex = /=/;"); 1043 verifyFormat("var regex = /a*/;"); 1044 verifyFormat("var regex = /a+/;"); 1045 verifyFormat("var regex = /a?/;"); 1046 verifyFormat("var regex = /.a./;"); 1047 verifyFormat("var regex = /a\\*/;"); 1048 verifyFormat("var regex = /^a$/;"); 1049 verifyFormat("var regex = /\\/a/;"); 1050 verifyFormat("var regex = /(?:x)/;"); 1051 verifyFormat("var regex = /x(?=y)/;"); 1052 verifyFormat("var regex = /x(?!y)/;"); 1053 verifyFormat("var regex = /x|y/;"); 1054 verifyFormat("var regex = /a{2}/;"); 1055 verifyFormat("var regex = /a{1,3}/;"); 1056 1057 verifyFormat("var regex = /[abc]/;"); 1058 verifyFormat("var regex = /[^abc]/;"); 1059 verifyFormat("var regex = /[\\b]/;"); 1060 verifyFormat("var regex = /[/]/;"); 1061 verifyFormat("var regex = /[\\/]/;"); 1062 verifyFormat("var regex = /\\[/;"); 1063 verifyFormat("var regex = /\\\\[/]/;"); 1064 verifyFormat("var regex = /}[\"]/;"); 1065 verifyFormat("var regex = /}[/\"]/;"); 1066 verifyFormat("var regex = /}[\"/]/;"); 1067 1068 verifyFormat("var regex = /\\b/;"); 1069 verifyFormat("var regex = /\\B/;"); 1070 verifyFormat("var regex = /\\d/;"); 1071 verifyFormat("var regex = /\\D/;"); 1072 verifyFormat("var regex = /\\f/;"); 1073 verifyFormat("var regex = /\\n/;"); 1074 verifyFormat("var regex = /\\r/;"); 1075 verifyFormat("var regex = /\\s/;"); 1076 verifyFormat("var regex = /\\S/;"); 1077 verifyFormat("var regex = /\\t/;"); 1078 verifyFormat("var regex = /\\v/;"); 1079 verifyFormat("var regex = /\\w/;"); 1080 verifyFormat("var regex = /\\W/;"); 1081 verifyFormat("var regex = /a(a)\\1/;"); 1082 verifyFormat("var regex = /\\0/;"); 1083 verifyFormat("var regex = /\\\\/g;"); 1084 verifyFormat("var regex = /\\a\\\\/g;"); 1085 verifyFormat("var regex = /\a\\//g;"); 1086 verifyFormat("var regex = /a\\//;\n" 1087 "var x = 0;"); 1088 verifyFormat("var regex = /'/g;", "var regex = /'/g ;"); 1089 verifyFormat("var regex = /'/g; //'", "var regex = /'/g ; //'"); 1090 verifyFormat("var regex = /\\/*/;\n" 1091 "var x = 0;", 1092 "var regex = /\\/*/;\n" 1093 "var x=0;"); 1094 verifyFormat("var x = /a\\//;", "var x = /a\\// \n;"); 1095 verifyFormat("var regex = /\"/;", getGoogleJSStyleWithColumns(16)); 1096 verifyFormat("var regex =\n" 1097 " /\"/;", 1098 getGoogleJSStyleWithColumns(15)); 1099 verifyFormat("var regex = //\n" 1100 " /a/;"); 1101 verifyFormat("var regexs = [\n" 1102 " /d/, //\n" 1103 " /aa/, //\n" 1104 "];"); 1105 } 1106 1107 TEST_F(FormatTestJS, RegexLiteralModifiers) { 1108 verifyFormat("var regex = /abc/g;"); 1109 verifyFormat("var regex = /abc/i;"); 1110 verifyFormat("var regex = /abc/m;"); 1111 verifyFormat("var regex = /abc/y;"); 1112 } 1113 1114 TEST_F(FormatTestJS, RegexLiteralLength) { 1115 verifyFormat("var regex = /aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/;", 1116 getGoogleJSStyleWithColumns(60)); 1117 verifyFormat("var regex =\n" 1118 " /aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/;", 1119 getGoogleJSStyleWithColumns(60)); 1120 verifyFormat("var regex = /\\xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/;", 1121 getGoogleJSStyleWithColumns(50)); 1122 } 1123 1124 TEST_F(FormatTestJS, RegexLiteralExamples) { 1125 verifyFormat("var regex = search.match(/(?:\?|&)times=([^?&]+)/i);"); 1126 } 1127 1128 TEST_F(FormatTestJS, IgnoresMpegTS) { 1129 std::string MpegTS(200, ' '); 1130 MpegTS.replace(0, strlen("nearlyLooks + like + ts + code; "), 1131 "nearlyLooks + like + ts + code; "); 1132 MpegTS[0] = 0x47; 1133 MpegTS[188] = 0x47; 1134 verifyFormat(MpegTS, MpegTS); 1135 } 1136 1137 TEST_F(FormatTestJS, TypeAnnotations) { 1138 verifyFormat("var x: string;"); 1139 verifyFormat("var x: {a: string; b: number;} = {};"); 1140 verifyFormat("function x(): string {\n return 'x';\n}"); 1141 verifyFormat("function x(): {x: string} {\n return {x: 'x'};\n}"); 1142 verifyFormat("function x(y: string): string {\n return 'x';\n}"); 1143 verifyFormat("for (var y: string in x) {\n x();\n}"); 1144 verifyFormat("for (var y: string of x) {\n x();\n}"); 1145 verifyFormat("function x(y: {a?: number;} = {}): number {\n" 1146 " return 12;\n" 1147 "}"); 1148 verifyFormat("((a: string, b: number): string => a + b);"); 1149 verifyFormat("var x: (y: number) => string;"); 1150 verifyFormat("var x: P<string, (a: number) => string>;"); 1151 verifyFormat("var x = {\n" 1152 " y: function(): z {\n" 1153 " return 1;\n" 1154 " }\n" 1155 "};"); 1156 verifyFormat("var x = {\n" 1157 " y: function(): {a: number} {\n" 1158 " return 1;\n" 1159 " }\n" 1160 "};"); 1161 verifyFormat("function someFunc(args: string[]):\n" 1162 " {longReturnValue: string[]} {}", 1163 getGoogleJSStyleWithColumns(60)); 1164 verifyFormat( 1165 "var someValue = (v as aaaaaaaaaaaaaaaaaaaa<T>[])\n" 1166 " .someFunction(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 1167 } 1168 1169 TEST_F(FormatTestJS, UnionIntersectionTypes) { 1170 verifyFormat("let x: A|B = A | B;"); 1171 verifyFormat("let x: A&B|C = A & B;"); 1172 verifyFormat("let x: Foo<A|B> = new Foo<A|B>();"); 1173 verifyFormat("function(x: A|B): C&D {}"); 1174 verifyFormat("function(x: A|B = A | B): C&D {}"); 1175 verifyFormat("function x(path: number|string) {}"); 1176 verifyFormat("function x(): string|number {}"); 1177 verifyFormat("type Foo = Bar|Baz;"); 1178 verifyFormat("type Foo = Bar<X>|Baz;"); 1179 verifyFormat("type Foo = (Bar<X>|Baz);"); 1180 verifyFormat("let x: Bar|Baz;"); 1181 verifyFormat("let x: Bar<X>|Baz;"); 1182 verifyFormat("let x: (Foo|Bar)[];"); 1183 } 1184 1185 TEST_F(FormatTestJS, ClassDeclarations) { 1186 verifyFormat("class C {\n x: string = 12;\n}"); 1187 verifyFormat("class C {\n x(): string => 12;\n}"); 1188 verifyFormat("class C {\n ['x' + 2]: string = 12;\n}"); 1189 verifyFormat("class C {\n private x: string = 12;\n}"); 1190 verifyFormat("class C {\n private static x: string = 12;\n}"); 1191 verifyFormat("class C {\n static x(): string {\n return 'asd';\n }\n}"); 1192 verifyFormat("class C extends P implements I {}"); 1193 verifyFormat("class C extends p.P implements i.I {}"); 1194 verifyFormat( 1195 "x(class {\n" 1196 " a(): A {}\n" 1197 "});"); 1198 verifyFormat("class Test {\n" 1199 " aaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaa: aaaaaaaaaaaaaaaaaaaa):\n" 1200 " aaaaaaaaaaaaaaaaaaaaaa {}\n" 1201 "}"); 1202 verifyFormat("foo = class Name {\n" 1203 " constructor() {}\n" 1204 "};"); 1205 verifyFormat("foo = class {\n" 1206 " constructor() {}\n" 1207 "};"); 1208 verifyFormat("class C {\n" 1209 " x: {y: Z;} = {};\n" 1210 " private y: {y: Z;} = {};\n" 1211 "}"); 1212 1213 // ':' is not a type declaration here. 1214 verifyFormat("class X {\n" 1215 " subs = {\n" 1216 " 'b': {\n" 1217 " 'c': 1,\n" 1218 " },\n" 1219 " };\n" 1220 "}"); 1221 verifyFormat("@Component({\n" 1222 " moduleId: module.id,\n" 1223 "})\n" 1224 "class SessionListComponent implements OnDestroy, OnInit {\n" 1225 "}"); 1226 } 1227 1228 TEST_F(FormatTestJS, InterfaceDeclarations) { 1229 verifyFormat("interface I {\n" 1230 " x: string;\n" 1231 " enum: string[];\n" 1232 " enum?: string[];\n" 1233 "}\n" 1234 "var y;"); 1235 // Ensure that state is reset after parsing the interface. 1236 verifyFormat("interface a {}\n" 1237 "export function b() {}\n" 1238 "var x;"); 1239 1240 // Arrays of object type literals. 1241 verifyFormat("interface I {\n" 1242 " o: {}[];\n" 1243 "}"); 1244 } 1245 1246 TEST_F(FormatTestJS, EnumDeclarations) { 1247 verifyFormat("enum Foo {\n" 1248 " A = 1,\n" 1249 " B\n" 1250 "}"); 1251 verifyFormat("export /* somecomment*/ enum Foo {\n" 1252 " A = 1,\n" 1253 " B\n" 1254 "}"); 1255 verifyFormat("enum Foo {\n" 1256 " A = 1, // comment\n" 1257 " B\n" 1258 "}\n" 1259 "var x = 1;"); 1260 } 1261 1262 TEST_F(FormatTestJS, MetadataAnnotations) { 1263 verifyFormat("@A\nclass C {\n}"); 1264 verifyFormat("@A({arg: 'value'})\nclass C {\n}"); 1265 verifyFormat("@A\n@B\nclass C {\n}"); 1266 verifyFormat("class C {\n @A x: string;\n}"); 1267 verifyFormat("class C {\n" 1268 " @A\n" 1269 " private x(): string {\n" 1270 " return 'y';\n" 1271 " }\n" 1272 "}"); 1273 verifyFormat("class C {\n" 1274 " private x(@A x: string) {}\n" 1275 "}"); 1276 verifyFormat("class X {}\n" 1277 "class Y {}"); 1278 verifyFormat("class X {\n" 1279 " @property() private isReply = false;\n" 1280 "}\n"); 1281 } 1282 1283 TEST_F(FormatTestJS, TypeAliases) { 1284 verifyFormat("type X = number;\n" 1285 "class C {}"); 1286 verifyFormat("type X<Y> = Z<Y>;"); 1287 verifyFormat("type X = {\n" 1288 " y: number\n" 1289 "};\n" 1290 "class C {}"); 1291 } 1292 1293 TEST_F(FormatTestJS, TypeInterfaceLineWrapping) { 1294 const FormatStyle &Style = getGoogleJSStyleWithColumns(20); 1295 verifyFormat("type LongTypeIsReallyUnreasonablyLong =\n" 1296 " string;\n", 1297 "type LongTypeIsReallyUnreasonablyLong = string;\n", 1298 Style); 1299 verifyFormat( 1300 "interface AbstractStrategyFactoryProvider {\n" 1301 " a: number\n" 1302 "}\n", 1303 "interface AbstractStrategyFactoryProvider { a: number }\n", 1304 Style); 1305 } 1306 1307 TEST_F(FormatTestJS, Modules) { 1308 verifyFormat("import SomeThing from 'some/module.js';"); 1309 verifyFormat("import {X, Y} from 'some/module.js';"); 1310 verifyFormat("import a, {X, Y} from 'some/module.js';"); 1311 verifyFormat("import {X, Y,} from 'some/module.js';"); 1312 verifyFormat("import {X as myLocalX, Y as myLocalY} from 'some/module.js';"); 1313 // Ensure Automatic Semicolon Insertion does not break on "as\n". 1314 verifyFormat("import {X as myX} from 'm';", "import {X as\n" 1315 " myX} from 'm';"); 1316 verifyFormat("import * as lib from 'some/module.js';"); 1317 verifyFormat("var x = {import: 1};\nx.import = 2;"); 1318 1319 verifyFormat("export function fn() {\n" 1320 " return 'fn';\n" 1321 "}"); 1322 verifyFormat("export function A() {}\n" 1323 "export default function B() {}\n" 1324 "export function C() {}"); 1325 verifyFormat("export default () => {\n" 1326 " let x = 1;\n" 1327 " return x;\n" 1328 "}"); 1329 verifyFormat("export const x = 12;"); 1330 verifyFormat("export default class X {}"); 1331 verifyFormat("export {X, Y} from 'some/module.js';"); 1332 verifyFormat("export {X, Y,} from 'some/module.js';"); 1333 verifyFormat("export {SomeVeryLongExport as X, " 1334 "SomeOtherVeryLongExport as Y} from 'some/module.js';"); 1335 // export without 'from' is wrapped. 1336 verifyFormat("export let someRatherLongVariableName =\n" 1337 " someSurprisinglyLongVariable + someOtherRatherLongVar;"); 1338 // ... but not if from is just an identifier. 1339 verifyFormat("export {\n" 1340 " from as from,\n" 1341 " someSurprisinglyLongVariable as\n" 1342 " from\n" 1343 "};", 1344 getGoogleJSStyleWithColumns(20)); 1345 verifyFormat("export class C {\n" 1346 " x: number;\n" 1347 " y: string;\n" 1348 "}"); 1349 verifyFormat("export class X { y: number; }"); 1350 verifyFormat("export abstract class X { y: number; }"); 1351 verifyFormat("export default class X { y: number }"); 1352 verifyFormat("export default function() {\n return 1;\n}"); 1353 verifyFormat("export var x = 12;"); 1354 verifyFormat("class C {}\n" 1355 "export function f() {}\n" 1356 "var v;"); 1357 verifyFormat("export var x: number = 12;"); 1358 verifyFormat("export const y = {\n" 1359 " a: 1,\n" 1360 " b: 2\n" 1361 "};"); 1362 verifyFormat("export enum Foo {\n" 1363 " BAR,\n" 1364 " // adsdasd\n" 1365 " BAZ\n" 1366 "}"); 1367 verifyFormat("export default [\n" 1368 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 1369 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 1370 "];"); 1371 verifyFormat("export default [];"); 1372 verifyFormat("export default () => {};"); 1373 verifyFormat("export interface Foo { foo: number; }\n" 1374 "export class Bar {\n" 1375 " blah(): string {\n" 1376 " return this.blah;\n" 1377 " };\n" 1378 "}"); 1379 } 1380 1381 TEST_F(FormatTestJS, ImportWrapping) { 1382 verifyFormat("import {VeryLongImportsAreAnnoying, VeryLongImportsAreAnnoying," 1383 " VeryLongImportsAreAnnoying, VeryLongImportsAreAnnoying" 1384 "} from 'some/module.js';"); 1385 FormatStyle Style = getGoogleJSStyleWithColumns(80); 1386 Style.JavaScriptWrapImports = true; 1387 verifyFormat("import {\n" 1388 " VeryLongImportsAreAnnoying,\n" 1389 " VeryLongImportsAreAnnoying,\n" 1390 " VeryLongImportsAreAnnoying,\n" 1391 "} from 'some/module.js';", 1392 Style); 1393 verifyFormat("import {\n" 1394 " A,\n" 1395 " A,\n" 1396 "} from 'some/module.js';", 1397 Style); 1398 verifyFormat("export {\n" 1399 " A,\n" 1400 " A,\n" 1401 "} from 'some/module.js';", 1402 Style); 1403 } 1404 1405 TEST_F(FormatTestJS, TemplateStrings) { 1406 // Keeps any whitespace/indentation within the template string. 1407 verifyFormat("var x = `hello\n" 1408 " ${name}\n" 1409 " !`;", 1410 "var x = `hello\n" 1411 " ${ name }\n" 1412 " !`;"); 1413 1414 verifyFormat("var x =\n" 1415 " `hello ${world}` >= some();", 1416 getGoogleJSStyleWithColumns(34)); // Barely doesn't fit. 1417 verifyFormat("var x = `hello ${world}` >= some();", 1418 getGoogleJSStyleWithColumns(35)); // Barely fits. 1419 verifyFormat("var x = `hellö ${wörld}` >= söme();", 1420 getGoogleJSStyleWithColumns(35)); // Fits due to UTF-8. 1421 verifyFormat("var x = `hello\n" 1422 " ${world}` >=\n" 1423 " some();", 1424 "var x =\n" 1425 " `hello\n" 1426 " ${world}` >= some();", 1427 getGoogleJSStyleWithColumns(21)); // Barely doesn't fit. 1428 verifyFormat("var x = `hello\n" 1429 " ${world}` >= some();", 1430 "var x =\n" 1431 " `hello\n" 1432 " ${world}` >= some();", 1433 getGoogleJSStyleWithColumns(22)); // Barely fits. 1434 1435 verifyFormat("var x =\n" 1436 " `h`;", 1437 getGoogleJSStyleWithColumns(11)); 1438 verifyFormat("var x =\n `multi\n line`;", "var x = `multi\n line`;", 1439 getGoogleJSStyleWithColumns(13)); 1440 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 1441 " `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa`);"); 1442 // Repro for an obscure width-miscounting issue with template strings. 1443 verifyFormat( 1444 "someLongVariable =\n" 1445 " " 1446 "`${logPrefix[11]}/${logPrefix[12]}/${logPrefix[13]}${logPrefix[14]}`;", 1447 "someLongVariable = " 1448 "`${logPrefix[11]}/${logPrefix[12]}/${logPrefix[13]}${logPrefix[14]}`;"); 1449 1450 // Make sure template strings get a proper ColumnWidth assigned, even if they 1451 // are first token in line. 1452 verifyFormat( 1453 "var a = aaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 1454 " `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa`;"); 1455 1456 // Two template strings. 1457 verifyFormat("var x = `hello` == `hello`;"); 1458 1459 // Comments in template strings. 1460 verifyFormat("var x = `//a`;\n" 1461 "var y;", 1462 "var x =\n `//a`;\n" 1463 "var y ;"); 1464 verifyFormat("var x = `/*a`;\n" 1465 "var y;", 1466 "var x =\n `/*a`;\n" 1467 "var y;"); 1468 // Unterminated string literals in a template string. 1469 verifyFormat("var x = `'`; // comment with matching quote '\n" 1470 "var y;"); 1471 verifyFormat("var x = `\"`; // comment with matching quote \"\n" 1472 "var y;"); 1473 verifyFormat("it(`'aaaaaaaaaaaaaaa `, aaaaaaaaa);", 1474 "it(`'aaaaaaaaaaaaaaa `, aaaaaaaaa) ;", 1475 getGoogleJSStyleWithColumns(40)); 1476 // Backticks in a comment - not a template string. 1477 verifyFormat("var x = 1 // `/*a`;\n" 1478 " ;", 1479 "var x =\n 1 // `/*a`;\n" 1480 " ;"); 1481 verifyFormat("/* ` */ var x = 1; /* ` */", "/* ` */ var x\n= 1; /* ` */"); 1482 // Comment spans multiple template strings. 1483 verifyFormat("var x = `/*a`;\n" 1484 "var y = ` */ `;", 1485 "var x =\n `/*a`;\n" 1486 "var y =\n ` */ `;"); 1487 // Escaped backtick. 1488 verifyFormat("var x = ` \\` a`;\n" 1489 "var y;", 1490 "var x = ` \\` a`;\n" 1491 "var y;"); 1492 // Escaped dollar. 1493 verifyFormat("var x = ` \\${foo}`;\n"); 1494 1495 // The token stream can contain two string_literals in sequence, but that 1496 // doesn't mean that they are implicitly concatenated in JavaScript. 1497 verifyFormat("var f = `aaaa ${a ? 'a' : 'b'}`;"); 1498 1499 // Ensure that scopes are appropriately set around evaluated expressions in 1500 // template strings. 1501 verifyFormat("var f = `aaaaaaaaaaaaa:${aaaaaaa.aaaaa} aaaaaaaa\n" 1502 " aaaaaaaaaaaaa:${aaaaaaa.aaaaa} aaaaaaaa`;", 1503 "var f = `aaaaaaaaaaaaa:${aaaaaaa. aaaaa} aaaaaaaa\n" 1504 " aaaaaaaaaaaaa:${ aaaaaaa. aaaaa} aaaaaaaa`;"); 1505 verifyFormat("var x = someFunction(`${})`) //\n" 1506 " .oooooooooooooooooon();"); 1507 verifyFormat("var x = someFunction(`${aaaa}${\n" 1508 " aaaaa( //\n" 1509 " aaaaa)\n" 1510 " })`);"); 1511 } 1512 1513 TEST_F(FormatTestJS, TemplateStringMultiLineExpression) { 1514 verifyFormat("var f = `aaaaaaaaaaaaaaaaaa: ${\n" 1515 " aaaaa + //\n" 1516 " bbbb\n" 1517 " }`;", 1518 "var f = `aaaaaaaaaaaaaaaaaa: ${aaaaa + //\n" 1519 " bbbb}`;"); 1520 verifyFormat("var f = `\n" 1521 " aaaaaaaaaaaaaaaaaa: ${\n" 1522 " aaaaa + //\n" 1523 " bbbb\n" 1524 " }`;", 1525 "var f = `\n" 1526 " aaaaaaaaaaaaaaaaaa: ${ aaaaa + //\n" 1527 " bbbb }`;"); 1528 verifyFormat("var f = `\n" 1529 " aaaaaaaaaaaaaaaaaa: ${\n" 1530 " someFunction(\n" 1531 " aaaaa + //\n" 1532 " bbbb)\n" 1533 " }`;", 1534 "var f = `\n" 1535 " aaaaaaaaaaaaaaaaaa: ${someFunction (\n" 1536 " aaaaa + //\n" 1537 " bbbb)}`;"); 1538 1539 // It might be preferable to wrap before "someFunction". 1540 verifyFormat("var f = `\n" 1541 " aaaaaaaaaaaaaaaaaa: ${someFunction({\n" 1542 " aaaa: aaaaa,\n" 1543 " bbbb: bbbbb,\n" 1544 " })}`;", 1545 "var f = `\n" 1546 " aaaaaaaaaaaaaaaaaa: ${someFunction ({\n" 1547 " aaaa: aaaaa,\n" 1548 " bbbb: bbbbb,\n" 1549 " })}`;"); 1550 } 1551 1552 TEST_F(FormatTestJS, TemplateStringASI) { 1553 verifyFormat("var x = `hello${world}`;", "var x = `hello${\n" 1554 " world\n" 1555 "}`;"); 1556 } 1557 1558 TEST_F(FormatTestJS, NestedTemplateStrings) { 1559 verifyFormat( 1560 "var x = `<ul>${xs.map(x => `<li>${x}</li>`).join('\\n')}</ul>`;"); 1561 verifyFormat("var x = `he${({text: 'll'}.text)}o`;"); 1562 1563 // Crashed at some point. 1564 verifyFormat("}"); 1565 } 1566 1567 TEST_F(FormatTestJS, TaggedTemplateStrings) { 1568 verifyFormat("var x = html`<ul>`;"); 1569 } 1570 1571 TEST_F(FormatTestJS, CastSyntax) { 1572 verifyFormat("var x = <type>foo;"); 1573 verifyFormat("var x = foo as type;"); 1574 verifyFormat("let x = (a + b) as\n" 1575 " LongTypeIsLong;", 1576 getGoogleJSStyleWithColumns(20)); 1577 verifyFormat("foo = <Bar[]>[\n" 1578 " 1, //\n" 1579 " 2\n" 1580 "];"); 1581 verifyFormat("var x = [{x: 1} as type];"); 1582 verifyFormat("x = x as [a, b];"); 1583 verifyFormat("x = x as {a: string};"); 1584 verifyFormat("x = x as (string);"); 1585 verifyFormat("x = x! as (string);"); 1586 verifyFormat("var x = something.someFunction() as\n" 1587 " something;", 1588 getGoogleJSStyleWithColumns(40)); 1589 } 1590 1591 TEST_F(FormatTestJS, TypeArguments) { 1592 verifyFormat("class X<Y> {}"); 1593 verifyFormat("new X<Y>();"); 1594 verifyFormat("foo<Y>(a);"); 1595 verifyFormat("var x: X<Y>[];"); 1596 verifyFormat("class C extends D<E> implements F<G>, H<I> {}"); 1597 verifyFormat("function f(a: List<any> = null) {}"); 1598 verifyFormat("function f(): List<any> {}"); 1599 verifyFormat("function aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa():\n" 1600 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb {}"); 1601 verifyFormat("function aaaaaaaaaa(\n" 1602 " aaaaaaaaaaaaaaaa: aaaaaaaaaaaaaaaaaaa,\n" 1603 " aaaaaaaaaaaaaaaa: aaaaaaaaaaaaaaaaaaa):\n" 1604 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa {}"); 1605 } 1606 1607 TEST_F(FormatTestJS, UserDefinedTypeGuards) { 1608 verifyFormat( 1609 "function foo(check: Object):\n" 1610 " check is {foo: string, bar: string, baz: string, foobar: string} {\n" 1611 " return 'bar' in check;\n" 1612 "}\n"); 1613 } 1614 1615 TEST_F(FormatTestJS, OptionalTypes) { 1616 verifyFormat("function x(a?: b, c?, d?) {}"); 1617 verifyFormat("class X {\n" 1618 " y?: z;\n" 1619 " z?;\n" 1620 "}"); 1621 verifyFormat("interface X {\n" 1622 " y?(): z;\n" 1623 "}"); 1624 verifyFormat("constructor({aa}: {\n" 1625 " aa?: string,\n" 1626 " aaaaaaaa?: string,\n" 1627 " aaaaaaaaaaaaaaa?: boolean,\n" 1628 " aaaaaa?: List<string>\n" 1629 "}) {}"); 1630 } 1631 1632 TEST_F(FormatTestJS, IndexSignature) { 1633 verifyFormat("var x: {[k: string]: v};"); 1634 } 1635 1636 TEST_F(FormatTestJS, WrapAfterParen) { 1637 verifyFormat("xxxxxxxxxxx(\n" 1638 " aaa, aaa);", 1639 getGoogleJSStyleWithColumns(20)); 1640 verifyFormat("xxxxxxxxxxx(\n" 1641 " aaa, aaa, aaa,\n" 1642 " aaa, aaa, aaa);", 1643 getGoogleJSStyleWithColumns(20)); 1644 verifyFormat("xxxxxxxxxxx(\n" 1645 " aaaaaaaaaaaaaaaaaaaaaaaa,\n" 1646 " function(x) {\n" 1647 " y(); //\n" 1648 " });", 1649 getGoogleJSStyleWithColumns(40)); 1650 verifyFormat("while (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa &&\n" 1651 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}"); 1652 } 1653 1654 TEST_F(FormatTestJS, JSDocAnnotations) { 1655 verifyFormat("/**\n" 1656 " * @export {this.is.a.long.path.to.a.Type}\n" 1657 " */", 1658 "/**\n" 1659 " * @export {this.is.a.long.path.to.a.Type}\n" 1660 " */", 1661 getGoogleJSStyleWithColumns(20)); 1662 verifyFormat("/**\n" 1663 " * @mods {this.is.a.long.path.to.a.Type}\n" 1664 " */", 1665 "/**\n" 1666 " * @mods {this.is.a.long.path.to.a.Type}\n" 1667 " */", 1668 getGoogleJSStyleWithColumns(20)); 1669 verifyFormat("/**\n" 1670 " * @param {this.is.a.long.path.to.a.Type}\n" 1671 " */", 1672 "/**\n" 1673 " * @param {this.is.a.long.path.to.a.Type}\n" 1674 " */", 1675 getGoogleJSStyleWithColumns(20)); 1676 verifyFormat("/**\n" 1677 " * @see http://very/very/long/url/is/long\n" 1678 " */", 1679 "/**\n" 1680 " * @see http://very/very/long/url/is/long\n" 1681 " */", 1682 getGoogleJSStyleWithColumns(20)); 1683 verifyFormat( 1684 "/**\n" 1685 " * @param This is a\n" 1686 " * long comment but\n" 1687 " * no type\n" 1688 " */", 1689 "/**\n" 1690 " * @param This is a long comment but no type\n" 1691 " */", 1692 getGoogleJSStyleWithColumns(20)); 1693 // Don't break @param line, but reindent it and reflow unrelated lines. 1694 verifyFormat("{\n" 1695 " /**\n" 1696 " * long long long\n" 1697 " * long\n" 1698 " * @param {this.is.a.long.path.to.a.Type} a\n" 1699 " * long long long\n" 1700 " * long long\n" 1701 " */\n" 1702 " function f(a) {}\n" 1703 "}", 1704 "{\n" 1705 "/**\n" 1706 " * long long long long\n" 1707 " * @param {this.is.a.long.path.to.a.Type} a\n" 1708 " * long long long long\n" 1709 " * long\n" 1710 " */\n" 1711 " function f(a) {}\n" 1712 "}", 1713 getGoogleJSStyleWithColumns(20)); 1714 } 1715 1716 TEST_F(FormatTestJS, RequoteStringsSingle) { 1717 verifyFormat("var x = 'foo';", "var x = \"foo\";"); 1718 verifyFormat("var x = 'fo\\'o\\'';", "var x = \"fo'o'\";"); 1719 verifyFormat("var x = 'fo\\'o\\'';", "var x = \"fo\\'o'\";"); 1720 verifyFormat( 1721 "var x =\n" 1722 " 'foo\\'';", 1723 // Code below is 15 chars wide, doesn't fit into the line with the 1724 // \ escape added. 1725 "var x = \"foo'\";", getGoogleJSStyleWithColumns(15)); 1726 // Removes no-longer needed \ escape from ". 1727 verifyFormat("var x = 'fo\"o';", "var x = \"fo\\\"o\";"); 1728 // Code below fits into 15 chars *after* removing the \ escape. 1729 verifyFormat("var x = 'fo\"o';", "var x = \"fo\\\"o\";", 1730 getGoogleJSStyleWithColumns(15)); 1731 verifyFormat("// clang-format off\n" 1732 "let x = \"double\";\n" 1733 "// clang-format on\n" 1734 "let x = 'single';\n", 1735 "// clang-format off\n" 1736 "let x = \"double\";\n" 1737 "// clang-format on\n" 1738 "let x = \"single\";\n"); 1739 } 1740 1741 TEST_F(FormatTestJS, RequoteAndIndent) { 1742 verifyFormat("let x = someVeryLongFunctionThatGoesOnAndOn(\n" 1743 " 'double quoted string that needs wrapping');", 1744 "let x = someVeryLongFunctionThatGoesOnAndOn(" 1745 "\"double quoted string that needs wrapping\");"); 1746 1747 verifyFormat("let x =\n" 1748 " 'foo\\'oo';\n" 1749 "let x =\n" 1750 " 'foo\\'oo';", 1751 "let x=\"foo'oo\";\n" 1752 "let x=\"foo'oo\";", 1753 getGoogleJSStyleWithColumns(15)); 1754 } 1755 1756 TEST_F(FormatTestJS, RequoteStringsDouble) { 1757 FormatStyle DoubleQuotes = getGoogleStyle(FormatStyle::LK_JavaScript); 1758 DoubleQuotes.JavaScriptQuotes = FormatStyle::JSQS_Double; 1759 verifyFormat("var x = \"foo\";", DoubleQuotes); 1760 verifyFormat("var x = \"foo\";", "var x = 'foo';", DoubleQuotes); 1761 verifyFormat("var x = \"fo'o\";", "var x = 'fo\\'o';", DoubleQuotes); 1762 } 1763 1764 TEST_F(FormatTestJS, RequoteStringsLeave) { 1765 FormatStyle LeaveQuotes = getGoogleStyle(FormatStyle::LK_JavaScript); 1766 LeaveQuotes.JavaScriptQuotes = FormatStyle::JSQS_Leave; 1767 verifyFormat("var x = \"foo\";", LeaveQuotes); 1768 verifyFormat("var x = 'foo';", LeaveQuotes); 1769 } 1770 1771 TEST_F(FormatTestJS, SupportShebangLines) { 1772 verifyFormat("#!/usr/bin/env node\n" 1773 "var x = hello();", 1774 "#!/usr/bin/env node\n" 1775 "var x = hello();"); 1776 } 1777 1778 TEST_F(FormatTestJS, NonNullAssertionOperator) { 1779 verifyFormat("let x = foo!.bar();\n"); 1780 verifyFormat("let x = foo ? bar! : baz;\n"); 1781 verifyFormat("let x = !foo;\n"); 1782 verifyFormat("let x = foo[0]!;\n"); 1783 verifyFormat("let x = (foo)!;\n"); 1784 verifyFormat("let x = foo! - 1;\n"); 1785 verifyFormat("let x = {foo: 1}!;\n"); 1786 verifyFormat( 1787 "let x = hello.foo()!\n" 1788 " .foo()!\n" 1789 " .foo()!\n" 1790 " .foo()!;\n", 1791 getGoogleJSStyleWithColumns(20)); 1792 } 1793 1794 TEST_F(FormatTestJS, Conditional) { 1795 verifyFormat("y = x ? 1 : 2;"); 1796 verifyFormat("x ? 1 : 2;"); 1797 verifyFormat("class Foo {\n" 1798 " field = true ? 1 : 2;\n" 1799 " method(a = true ? 1 : 2) {}\n" 1800 "}"); 1801 } 1802 1803 TEST_F(FormatTestJS, ImportComments) { 1804 verifyFormat("import {x} from 'x'; // from some location", 1805 getGoogleJSStyleWithColumns(25)); 1806 verifyFormat("// taze: x from 'location'", getGoogleJSStyleWithColumns(10)); 1807 verifyFormat("/// <reference path=\"some/location\" />", getGoogleJSStyleWithColumns(10)); 1808 } 1809 1810 TEST_F(FormatTestJS, Exponentiation) { 1811 verifyFormat("squared = x ** 2;"); 1812 verifyFormat("squared **= 2;"); 1813 } 1814 1815 } // end namespace tooling 1816 } // end namespace clang 1817