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 verifyFormat("function aFunction() {}\n" 474 "(function f() {\n" 475 " var x = 1;\n" 476 "}());\n"); 477 // Known issue: this should wrap after {}, but calculateBraceTypes 478 // misclassifies the first braces as a BK_BracedInit. 479 verifyFormat("function aFunction(){} {\n" 480 " let x = 1;\n" 481 " console.log(x);\n" 482 "}\n"); 483 } 484 485 TEST_F(FormatTestJS, GeneratorFunctions) { 486 verifyFormat("function* f() {\n" 487 " let x = 1;\n" 488 " yield x;\n" 489 " yield* something();\n" 490 " yield [1, 2];\n" 491 " yield {a: 1};\n" 492 "}"); 493 verifyFormat("function*\n" 494 " f() {\n" 495 "}", 496 getGoogleJSStyleWithColumns(8)); 497 verifyFormat("export function* f() {\n" 498 " yield 1;\n" 499 "}\n"); 500 verifyFormat("class X {\n" 501 " * generatorMethod() {\n" 502 " yield x;\n" 503 " }\n" 504 "}"); 505 verifyFormat("var x = {\n" 506 " a: function*() {\n" 507 " //\n" 508 " }\n" 509 "}\n"); 510 } 511 512 TEST_F(FormatTestJS, AsyncFunctions) { 513 verifyFormat("async function f() {\n" 514 " let x = 1;\n" 515 " return fetch(x);\n" 516 "}"); 517 verifyFormat("async function f() {\n" 518 " return 1;\n" 519 "}\n" 520 "\n" 521 "function a() {\n" 522 " return 1;\n" 523 "}\n", 524 " async function f() {\n" 525 " return 1;\n" 526 "}\n" 527 "\n" 528 " function a() {\n" 529 " return 1;\n" 530 "} \n"); 531 verifyFormat("async function* f() {\n" 532 " yield fetch(x);\n" 533 "}"); 534 verifyFormat("export async function f() {\n" 535 " return fetch(x);\n" 536 "}"); 537 verifyFormat("let x = async () => f();"); 538 verifyFormat("let x = async function() {\n" 539 " f();\n" 540 "};"); 541 verifyFormat("let x = async();"); 542 verifyFormat("class X {\n" 543 " async asyncMethod() {\n" 544 " return fetch(1);\n" 545 " }\n" 546 "}"); 547 verifyFormat("function initialize() {\n" 548 " // Comment.\n" 549 " return async.then();\n" 550 "}\n"); 551 verifyFormat("for await (const x of y) {\n" 552 " console.log(x);\n" 553 "}\n"); 554 verifyFormat("function asyncLoop() {\n" 555 " for await (const x of y) {\n" 556 " console.log(x);\n" 557 " }\n" 558 "}\n"); 559 } 560 561 TEST_F(FormatTestJS, FunctionParametersTrailingComma) { 562 verifyFormat("function trailingComma(\n" 563 " p1,\n" 564 " p2,\n" 565 " p3,\n" 566 ") {\n" 567 " a; //\n" 568 "}\n", 569 "function trailingComma(p1, p2, p3,) {\n" 570 " a; //\n" 571 "}\n"); 572 verifyFormat("trailingComma(\n" 573 " p1,\n" 574 " p2,\n" 575 " p3,\n" 576 ");\n", 577 "trailingComma(p1, p2, p3,);\n"); 578 verifyFormat("trailingComma(\n" 579 " p1 // hello\n" 580 ");\n", 581 "trailingComma(p1 // hello\n" 582 ");\n"); 583 } 584 585 TEST_F(FormatTestJS, ArrayLiterals) { 586 verifyFormat("var aaaaa: List<SomeThing> =\n" 587 " [new SomeThingAAAAAAAAAAAA(), new SomeThingBBBBBBBBB()];"); 588 verifyFormat("return [\n" 589 " aaaaaaaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbbbbbbbbbbbbbbbbbbbb,\n" 590 " ccccccccccccccccccccccccccc\n" 591 "];"); 592 verifyFormat("return [\n" 593 " aaaa().bbbbbbbb('A'),\n" 594 " aaaa().bbbbbbbb('B'),\n" 595 " aaaa().bbbbbbbb('C'),\n" 596 "];"); 597 verifyFormat("var someVariable = SomeFunction([\n" 598 " aaaaaaaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbbbbbbbbbbbbbbbbbbbb,\n" 599 " ccccccccccccccccccccccccccc\n" 600 "]);"); 601 verifyFormat("var someVariable = SomeFunction([\n" 602 " [aaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbbbbbbbbbbbbbbb],\n" 603 "]);", 604 getGoogleJSStyleWithColumns(51)); 605 verifyFormat("var someVariable = SomeFunction(aaaa, [\n" 606 " aaaaaaaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbbbbbbbbbbbbbbbbbbbb,\n" 607 " ccccccccccccccccccccccccccc\n" 608 "]);"); 609 verifyFormat("var someVariable = SomeFunction(\n" 610 " aaaa,\n" 611 " [\n" 612 " aaaaaaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbbbbbbbbbbbbbbbbbbb,\n" 613 " cccccccccccccccccccccccccc\n" 614 " ],\n" 615 " aaaa);"); 616 verifyFormat("var aaaa = aaaaa || // wrap\n" 617 " [];"); 618 619 verifyFormat("someFunction([], {a: a});"); 620 621 verifyFormat("var string = [\n" 622 " 'aaaaaa',\n" 623 " 'bbbbbb',\n" 624 "].join('+');"); 625 } 626 627 TEST_F(FormatTestJS, ColumnLayoutForArrayLiterals) { 628 verifyFormat("var array = [\n" 629 " a, a, a, a, a, a, a, a, a, a, a, a, a, a, a,\n" 630 " a, a, a, a, a, a, a, a, a, a, a, a, a, a, a,\n" 631 "];"); 632 verifyFormat("var array = someFunction([\n" 633 " a, a, a, a, a, a, a, a, a, a, a, a, a, a, a,\n" 634 " a, a, a, a, a, a, a, a, a, a, a, a, a, a, a,\n" 635 "]);"); 636 } 637 638 TEST_F(FormatTestJS, FunctionLiterals) { 639 FormatStyle Style = getGoogleStyle(FormatStyle::LK_JavaScript); 640 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Inline; 641 verifyFormat("doFoo(function() {});"); 642 verifyFormat("doFoo(function() { return 1; });", Style); 643 verifyFormat("var func = function() {\n" 644 " return 1;\n" 645 "};"); 646 verifyFormat("var func = //\n" 647 " function() {\n" 648 " return 1;\n" 649 "};"); 650 verifyFormat("return {\n" 651 " body: {\n" 652 " setAttribute: function(key, val) { this[key] = val; },\n" 653 " getAttribute: function(key) { return this[key]; },\n" 654 " style: {direction: ''}\n" 655 " }\n" 656 "};", 657 Style); 658 verifyFormat("abc = xyz ? function() {\n" 659 " return 1;\n" 660 "} : function() {\n" 661 " return -1;\n" 662 "};"); 663 664 verifyFormat("var closure = goog.bind(\n" 665 " function() { // comment\n" 666 " foo();\n" 667 " bar();\n" 668 " },\n" 669 " this, arg1IsReallyLongAndNeedsLineBreaks,\n" 670 " arg3IsReallyLongAndNeedsLineBreaks);"); 671 verifyFormat("var closure = goog.bind(function() { // comment\n" 672 " foo();\n" 673 " bar();\n" 674 "}, this);"); 675 verifyFormat("return {\n" 676 " a: 'E',\n" 677 " b: function() {\n" 678 " return function() {\n" 679 " f(); //\n" 680 " };\n" 681 " }\n" 682 "};"); 683 verifyFormat("{\n" 684 " var someVariable = function(x) {\n" 685 " return x.zIsTooLongForOneLineWithTheDeclarationLine();\n" 686 " };\n" 687 "}"); 688 verifyFormat("someLooooooooongFunction(\n" 689 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 690 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 691 " function(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n" 692 " // code\n" 693 " });"); 694 695 verifyFormat("return {\n" 696 " a: function SomeFunction() {\n" 697 " // ...\n" 698 " return 1;\n" 699 " }\n" 700 "};"); 701 verifyFormat("this.someObject.doSomething(aaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 702 " .then(goog.bind(function(aaaaaaaaaaa) {\n" 703 " someFunction();\n" 704 " someFunction();\n" 705 " }, this), aaaaaaaaaaaaaaaaa);"); 706 707 verifyFormat("someFunction(goog.bind(function() {\n" 708 " doSomething();\n" 709 " doSomething();\n" 710 "}, this), goog.bind(function() {\n" 711 " doSomething();\n" 712 " doSomething();\n" 713 "}, this));"); 714 715 verifyFormat("SomeFunction(function() {\n" 716 " foo();\n" 717 " bar();\n" 718 "}.bind(this));"); 719 720 // FIXME: This is bad, we should be wrapping before "function() {". 721 verifyFormat("someFunction(function() {\n" 722 " doSomething(); // break\n" 723 "})\n" 724 " .doSomethingElse(\n" 725 " // break\n" 726 " );"); 727 728 Style.ColumnLimit = 33; 729 verifyFormat("f({a: function() { return 1; }});", Style); 730 Style.ColumnLimit = 32; 731 verifyFormat("f({\n" 732 " a: function() { return 1; }\n" 733 "});", 734 Style); 735 736 } 737 738 TEST_F(FormatTestJS, InliningFunctionLiterals) { 739 FormatStyle Style = getGoogleStyle(FormatStyle::LK_JavaScript); 740 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Inline; 741 verifyFormat("var func = function() {\n" 742 " return 1;\n" 743 "};", 744 Style); 745 verifyFormat("var func = doSomething(function() { return 1; });", Style); 746 verifyFormat("var outer = function() {\n" 747 " var inner = function() { return 1; }\n" 748 "};", 749 Style); 750 verifyFormat("function outer1(a, b) {\n" 751 " function inner1(a, b) { return a; }\n" 752 "}", 753 Style); 754 755 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_All; 756 verifyFormat("var func = function() { return 1; };", Style); 757 verifyFormat("var func = doSomething(function() { return 1; });", Style); 758 verifyFormat( 759 "var outer = function() { var inner = function() { return 1; } };", 760 Style); 761 verifyFormat("function outer1(a, b) {\n" 762 " function inner1(a, b) { return a; }\n" 763 "}", 764 Style); 765 766 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_None; 767 verifyFormat("var func = function() {\n" 768 " return 1;\n" 769 "};", 770 Style); 771 verifyFormat("var func = doSomething(function() {\n" 772 " return 1;\n" 773 "});", 774 Style); 775 verifyFormat("var outer = function() {\n" 776 " var inner = function() {\n" 777 " return 1;\n" 778 " }\n" 779 "};", 780 Style); 781 verifyFormat("function outer1(a, b) {\n" 782 " function inner1(a, b) {\n" 783 " return a;\n" 784 " }\n" 785 "}", 786 Style); 787 788 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Empty; 789 verifyFormat("var func = function() {\n" 790 " return 1;\n" 791 "};", 792 Style); 793 } 794 795 TEST_F(FormatTestJS, MultipleFunctionLiterals) { 796 FormatStyle Style = getGoogleStyle(FormatStyle::LK_JavaScript); 797 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_All; 798 verifyFormat("promise.then(\n" 799 " function success() {\n" 800 " doFoo();\n" 801 " doBar();\n" 802 " },\n" 803 " function error() {\n" 804 " doFoo();\n" 805 " doBaz();\n" 806 " },\n" 807 " []);\n"); 808 verifyFormat("promise.then(\n" 809 " function success() {\n" 810 " doFoo();\n" 811 " doBar();\n" 812 " },\n" 813 " [],\n" 814 " function error() {\n" 815 " doFoo();\n" 816 " doBaz();\n" 817 " });\n"); 818 verifyFormat("promise.then(\n" 819 " [],\n" 820 " function success() {\n" 821 " doFoo();\n" 822 " doBar();\n" 823 " },\n" 824 " function error() {\n" 825 " doFoo();\n" 826 " doBaz();\n" 827 " });\n"); 828 829 verifyFormat("getSomeLongPromise()\n" 830 " .then(function(value) { body(); })\n" 831 " .thenCatch(function(error) {\n" 832 " body();\n" 833 " body();\n" 834 " });", 835 Style); 836 verifyFormat("getSomeLongPromise()\n" 837 " .then(function(value) {\n" 838 " body();\n" 839 " body();\n" 840 " })\n" 841 " .thenCatch(function(error) {\n" 842 " body();\n" 843 " body();\n" 844 " });"); 845 846 verifyFormat("getSomeLongPromise()\n" 847 " .then(function(value) { body(); })\n" 848 " .thenCatch(function(error) { body(); });", 849 Style); 850 851 verifyFormat("return [aaaaaaaaaaaaaaaaaaaaaa]\n" 852 " .aaaaaaa(function() {\n" 853 " //\n" 854 " })\n" 855 " .bbbbbb();"); 856 } 857 858 TEST_F(FormatTestJS, ArrowFunctions) { 859 verifyFormat("var x = (a) => {\n" 860 " return a;\n" 861 "};"); 862 verifyFormat("var x = (a) => {\n" 863 " function y() {\n" 864 " return 42;\n" 865 " }\n" 866 " return a;\n" 867 "};"); 868 verifyFormat("var x = (a: type): {some: type} => {\n" 869 " return a;\n" 870 "};"); 871 verifyFormat("var x = (a) => a;"); 872 verifyFormat("return () => [];"); 873 verifyFormat("var aaaaaaaaaaaaaaaaaaaa = {\n" 874 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa:\n" 875 " (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 876 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) =>\n" 877 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 878 "};"); 879 verifyFormat("var a = a.aaaaaaa(\n" 880 " (a: a) => aaaaaaaaaaaaaaaaaaaaaaaaa(bbbbbbbbb) &&\n" 881 " aaaaaaaaaaaaaaaaaaaaaaaaa(bbbbbbb));"); 882 verifyFormat("var a = a.aaaaaaa(\n" 883 " (a: a) => aaaaaaaaaaaaaaaaaaaaa(bbbbbbbbb) ?\n" 884 " aaaaaaaaaaaaaaaaaaaaa(bbbbbbb) :\n" 885 " aaaaaaaaaaaaaaaaaaaaa(bbbbbbb));"); 886 887 // FIXME: This is bad, we should be wrapping before "() => {". 888 verifyFormat("someFunction(() => {\n" 889 " doSomething(); // break\n" 890 "})\n" 891 " .doSomethingElse(\n" 892 " // break\n" 893 " );"); 894 } 895 896 TEST_F(FormatTestJS, ReturnStatements) { 897 verifyFormat("function() {\n" 898 " return [hello, world];\n" 899 "}"); 900 } 901 902 TEST_F(FormatTestJS, ForLoops) { 903 verifyFormat("for (var i in [2, 3]) {\n" 904 "}"); 905 verifyFormat("for (var i of [2, 3]) {\n" 906 "}"); 907 verifyFormat("for (let {a, b} of x) {\n" 908 "}"); 909 verifyFormat("for (let {a, b} in x) {\n" 910 "}"); 911 } 912 913 TEST_F(FormatTestJS, WrapRespectsAutomaticSemicolonInsertion) { 914 // The following statements must not wrap, as otherwise the program meaning 915 // would change due to automatic semicolon insertion. 916 // See http://www.ecma-international.org/ecma-262/5.1/#sec-7.9.1. 917 verifyFormat("return aaaaa;", getGoogleJSStyleWithColumns(10)); 918 verifyFormat("return /* hello! */ aaaaa;", getGoogleJSStyleWithColumns(10)); 919 verifyFormat("continue aaaaa;", getGoogleJSStyleWithColumns(10)); 920 verifyFormat("continue /* hello! */ aaaaa;", getGoogleJSStyleWithColumns(10)); 921 verifyFormat("break aaaaa;", getGoogleJSStyleWithColumns(10)); 922 verifyFormat("throw aaaaa;", getGoogleJSStyleWithColumns(10)); 923 verifyFormat("aaaaaaaaa++;", getGoogleJSStyleWithColumns(10)); 924 verifyFormat("aaaaaaaaa--;", getGoogleJSStyleWithColumns(10)); 925 verifyFormat("return [\n" 926 " aaa\n" 927 "];", 928 getGoogleJSStyleWithColumns(12)); 929 } 930 931 TEST_F(FormatTestJS, AutomaticSemicolonInsertionHeuristic) { 932 verifyFormat("a\n" 933 "b;", 934 " a \n" 935 " b ;"); 936 verifyFormat("a()\n" 937 "b;", 938 " a ()\n" 939 " b ;"); 940 verifyFormat("a[b]\n" 941 "c;", 942 "a [b]\n" 943 "c ;"); 944 verifyFormat("1\n" 945 "a;", 946 "1 \n" 947 "a ;"); 948 verifyFormat("a\n" 949 "1;", 950 "a \n" 951 "1 ;"); 952 verifyFormat("a\n" 953 "'x';", 954 "a \n" 955 " 'x';"); 956 verifyFormat("a++\n" 957 "b;", 958 "a ++\n" 959 "b ;"); 960 verifyFormat("a\n" 961 "!b && c;", 962 "a \n" 963 " ! b && c;"); 964 verifyFormat("a\n" 965 "if (1) f();", 966 " a\n" 967 " if (1) f();"); 968 verifyFormat("a\n" 969 "class X {}", 970 " a\n" 971 " class X {}"); 972 verifyFormat("var a", "var\n" 973 "a"); 974 verifyFormat("x instanceof String", "x\n" 975 "instanceof\n" 976 "String"); 977 verifyFormat("function f(@Foo bar) {}", "function f(@Foo\n" 978 " bar) {}"); 979 verifyFormat("a = true\n" 980 "return 1", 981 "a = true\n" 982 " return 1"); 983 verifyFormat("a = 's'\n" 984 "return 1", 985 "a = 's'\n" 986 " return 1"); 987 verifyFormat("a = null\n" 988 "return 1", 989 "a = null\n" 990 " return 1"); 991 // Below "class Y {}" should ideally be on its own line. 992 verifyFormat( 993 "x = {\n" 994 " a: 1\n" 995 "} class Y {}", 996 " x = {a : 1}\n" 997 " class Y { }"); 998 verifyFormat( 999 "if (x) {\n" 1000 "}\n" 1001 "return 1", 1002 "if (x) {}\n" 1003 " return 1"); 1004 verifyFormat( 1005 "if (x) {\n" 1006 "}\n" 1007 "class X {}", 1008 "if (x) {}\n" 1009 " class X {}"); 1010 } 1011 1012 TEST_F(FormatTestJS, ImportExportASI) { 1013 verifyFormat( 1014 "import {x} from 'y'\n" 1015 "export function z() {}", 1016 "import {x} from 'y'\n" 1017 " export function z() {}"); 1018 // Below "class Y {}" should ideally be on its own line. 1019 verifyFormat( 1020 "export {x} class Y {}", 1021 " export {x}\n" 1022 " class Y {\n}"); 1023 verifyFormat( 1024 "if (x) {\n" 1025 "}\n" 1026 "export class Y {}", 1027 "if ( x ) { }\n" 1028 " export class Y {}"); 1029 } 1030 1031 TEST_F(FormatTestJS, ClosureStyleCasts) { 1032 verifyFormat("var x = /** @type {foo} */ (bar);"); 1033 } 1034 1035 TEST_F(FormatTestJS, TryCatch) { 1036 verifyFormat("try {\n" 1037 " f();\n" 1038 "} catch (e) {\n" 1039 " g();\n" 1040 "} finally {\n" 1041 " h();\n" 1042 "}"); 1043 1044 // But, of course, "catch" is a perfectly fine function name in JavaScript. 1045 verifyFormat("someObject.catch();"); 1046 verifyFormat("someObject.new();"); 1047 verifyFormat("someObject.delete();"); 1048 } 1049 1050 TEST_F(FormatTestJS, StringLiteralConcatenation) { 1051 verifyFormat("var literal = 'hello ' +\n" 1052 " 'world';"); 1053 } 1054 1055 TEST_F(FormatTestJS, RegexLiteralClassification) { 1056 // Regex literals. 1057 verifyFormat("var regex = /abc/;"); 1058 verifyFormat("f(/abc/);"); 1059 verifyFormat("f(abc, /abc/);"); 1060 verifyFormat("some_map[/abc/];"); 1061 verifyFormat("var x = a ? /abc/ : /abc/;"); 1062 verifyFormat("for (var i = 0; /abc/.test(s[i]); i++) {\n}"); 1063 verifyFormat("var x = !/abc/.test(y);"); 1064 verifyFormat("var x = foo()! / 10;"); 1065 verifyFormat("var x = a && /abc/.test(y);"); 1066 verifyFormat("var x = a || /abc/.test(y);"); 1067 verifyFormat("var x = a + /abc/.search(y);"); 1068 verifyFormat("/abc/.search(y);"); 1069 verifyFormat("var regexs = {/abc/, /abc/};"); 1070 verifyFormat("return /abc/;"); 1071 1072 // Not regex literals. 1073 verifyFormat("var a = a / 2 + b / 3;"); 1074 verifyFormat("var a = a++ / 2;"); 1075 // Prefix unary can operate on regex literals, not that it makes sense. 1076 verifyFormat("var a = ++/a/;"); 1077 1078 // This is a known issue, regular expressions are incorrectly detected if 1079 // directly following a closing parenthesis. 1080 verifyFormat("if (foo) / bar /.exec(baz);"); 1081 } 1082 1083 TEST_F(FormatTestJS, RegexLiteralSpecialCharacters) { 1084 verifyFormat("var regex = /=/;"); 1085 verifyFormat("var regex = /a*/;"); 1086 verifyFormat("var regex = /a+/;"); 1087 verifyFormat("var regex = /a?/;"); 1088 verifyFormat("var regex = /.a./;"); 1089 verifyFormat("var regex = /a\\*/;"); 1090 verifyFormat("var regex = /^a$/;"); 1091 verifyFormat("var regex = /\\/a/;"); 1092 verifyFormat("var regex = /(?:x)/;"); 1093 verifyFormat("var regex = /x(?=y)/;"); 1094 verifyFormat("var regex = /x(?!y)/;"); 1095 verifyFormat("var regex = /x|y/;"); 1096 verifyFormat("var regex = /a{2}/;"); 1097 verifyFormat("var regex = /a{1,3}/;"); 1098 1099 verifyFormat("var regex = /[abc]/;"); 1100 verifyFormat("var regex = /[^abc]/;"); 1101 verifyFormat("var regex = /[\\b]/;"); 1102 verifyFormat("var regex = /[/]/;"); 1103 verifyFormat("var regex = /[\\/]/;"); 1104 verifyFormat("var regex = /\\[/;"); 1105 verifyFormat("var regex = /\\\\[/]/;"); 1106 verifyFormat("var regex = /}[\"]/;"); 1107 verifyFormat("var regex = /}[/\"]/;"); 1108 verifyFormat("var regex = /}[\"/]/;"); 1109 1110 verifyFormat("var regex = /\\b/;"); 1111 verifyFormat("var regex = /\\B/;"); 1112 verifyFormat("var regex = /\\d/;"); 1113 verifyFormat("var regex = /\\D/;"); 1114 verifyFormat("var regex = /\\f/;"); 1115 verifyFormat("var regex = /\\n/;"); 1116 verifyFormat("var regex = /\\r/;"); 1117 verifyFormat("var regex = /\\s/;"); 1118 verifyFormat("var regex = /\\S/;"); 1119 verifyFormat("var regex = /\\t/;"); 1120 verifyFormat("var regex = /\\v/;"); 1121 verifyFormat("var regex = /\\w/;"); 1122 verifyFormat("var regex = /\\W/;"); 1123 verifyFormat("var regex = /a(a)\\1/;"); 1124 verifyFormat("var regex = /\\0/;"); 1125 verifyFormat("var regex = /\\\\/g;"); 1126 verifyFormat("var regex = /\\a\\\\/g;"); 1127 verifyFormat("var regex = /\a\\//g;"); 1128 verifyFormat("var regex = /a\\//;\n" 1129 "var x = 0;"); 1130 verifyFormat("var regex = /'/g;", "var regex = /'/g ;"); 1131 verifyFormat("var regex = /'/g; //'", "var regex = /'/g ; //'"); 1132 verifyFormat("var regex = /\\/*/;\n" 1133 "var x = 0;", 1134 "var regex = /\\/*/;\n" 1135 "var x=0;"); 1136 verifyFormat("var x = /a\\//;", "var x = /a\\// \n;"); 1137 verifyFormat("var regex = /\"/;", getGoogleJSStyleWithColumns(16)); 1138 verifyFormat("var regex =\n" 1139 " /\"/;", 1140 getGoogleJSStyleWithColumns(15)); 1141 verifyFormat("var regex = //\n" 1142 " /a/;"); 1143 verifyFormat("var regexs = [\n" 1144 " /d/, //\n" 1145 " /aa/, //\n" 1146 "];"); 1147 } 1148 1149 TEST_F(FormatTestJS, RegexLiteralModifiers) { 1150 verifyFormat("var regex = /abc/g;"); 1151 verifyFormat("var regex = /abc/i;"); 1152 verifyFormat("var regex = /abc/m;"); 1153 verifyFormat("var regex = /abc/y;"); 1154 } 1155 1156 TEST_F(FormatTestJS, RegexLiteralLength) { 1157 verifyFormat("var regex = /aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/;", 1158 getGoogleJSStyleWithColumns(60)); 1159 verifyFormat("var regex =\n" 1160 " /aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/;", 1161 getGoogleJSStyleWithColumns(60)); 1162 verifyFormat("var regex = /\\xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/;", 1163 getGoogleJSStyleWithColumns(50)); 1164 } 1165 1166 TEST_F(FormatTestJS, RegexLiteralExamples) { 1167 verifyFormat("var regex = search.match(/(?:\?|&)times=([^?&]+)/i);"); 1168 } 1169 1170 TEST_F(FormatTestJS, IgnoresMpegTS) { 1171 std::string MpegTS(200, ' '); 1172 MpegTS.replace(0, strlen("nearlyLooks + like + ts + code; "), 1173 "nearlyLooks + like + ts + code; "); 1174 MpegTS[0] = 0x47; 1175 MpegTS[188] = 0x47; 1176 verifyFormat(MpegTS, MpegTS); 1177 } 1178 1179 TEST_F(FormatTestJS, TypeAnnotations) { 1180 verifyFormat("var x: string;"); 1181 verifyFormat("var x: {a: string; b: number;} = {};"); 1182 verifyFormat("function x(): string {\n return 'x';\n}"); 1183 verifyFormat("function x(): {x: string} {\n return {x: 'x'};\n}"); 1184 verifyFormat("function x(y: string): string {\n return 'x';\n}"); 1185 verifyFormat("for (var y: string in x) {\n x();\n}"); 1186 verifyFormat("for (var y: string of x) {\n x();\n}"); 1187 verifyFormat("function x(y: {a?: number;} = {}): number {\n" 1188 " return 12;\n" 1189 "}"); 1190 verifyFormat("((a: string, b: number): string => a + b);"); 1191 verifyFormat("var x: (y: number) => string;"); 1192 verifyFormat("var x: P<string, (a: number) => string>;"); 1193 verifyFormat("var x = {\n" 1194 " y: function(): z {\n" 1195 " return 1;\n" 1196 " }\n" 1197 "};"); 1198 verifyFormat("var x = {\n" 1199 " y: function(): {a: number} {\n" 1200 " return 1;\n" 1201 " }\n" 1202 "};"); 1203 verifyFormat("function someFunc(args: string[]):\n" 1204 " {longReturnValue: string[]} {}", 1205 getGoogleJSStyleWithColumns(60)); 1206 verifyFormat( 1207 "var someValue = (v as aaaaaaaaaaaaaaaaaaaa<T>[])\n" 1208 " .someFunction(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);"); 1209 } 1210 1211 TEST_F(FormatTestJS, UnionIntersectionTypes) { 1212 verifyFormat("let x: A|B = A | B;"); 1213 verifyFormat("let x: A&B|C = A & B;"); 1214 verifyFormat("let x: Foo<A|B> = new Foo<A|B>();"); 1215 verifyFormat("function(x: A|B): C&D {}"); 1216 verifyFormat("function(x: A|B = A | B): C&D {}"); 1217 verifyFormat("function x(path: number|string) {}"); 1218 verifyFormat("function x(): string|number {}"); 1219 verifyFormat("type Foo = Bar|Baz;"); 1220 verifyFormat("type Foo = Bar<X>|Baz;"); 1221 verifyFormat("type Foo = (Bar<X>|Baz);"); 1222 verifyFormat("let x: Bar|Baz;"); 1223 verifyFormat("let x: Bar<X>|Baz;"); 1224 verifyFormat("let x: (Foo|Bar)[];"); 1225 } 1226 1227 TEST_F(FormatTestJS, ClassDeclarations) { 1228 verifyFormat("class C {\n x: string = 12;\n}"); 1229 verifyFormat("class C {\n x(): string => 12;\n}"); 1230 verifyFormat("class C {\n ['x' + 2]: string = 12;\n}"); 1231 verifyFormat("class C {\n private x: string = 12;\n}"); 1232 verifyFormat("class C {\n private static x: string = 12;\n}"); 1233 verifyFormat("class C {\n static x(): string {\n return 'asd';\n }\n}"); 1234 verifyFormat("class C extends P implements I {}"); 1235 verifyFormat("class C extends p.P implements i.I {}"); 1236 verifyFormat( 1237 "x(class {\n" 1238 " a(): A {}\n" 1239 "});"); 1240 verifyFormat("class Test {\n" 1241 " aaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaa: aaaaaaaaaaaaaaaaaaaa):\n" 1242 " aaaaaaaaaaaaaaaaaaaaaa {}\n" 1243 "}"); 1244 verifyFormat("foo = class Name {\n" 1245 " constructor() {}\n" 1246 "};"); 1247 verifyFormat("foo = class {\n" 1248 " constructor() {}\n" 1249 "};"); 1250 verifyFormat("class C {\n" 1251 " x: {y: Z;} = {};\n" 1252 " private y: {y: Z;} = {};\n" 1253 "}"); 1254 1255 // ':' is not a type declaration here. 1256 verifyFormat("class X {\n" 1257 " subs = {\n" 1258 " 'b': {\n" 1259 " 'c': 1,\n" 1260 " },\n" 1261 " };\n" 1262 "}"); 1263 verifyFormat("@Component({\n" 1264 " moduleId: module.id,\n" 1265 "})\n" 1266 "class SessionListComponent implements OnDestroy, OnInit {\n" 1267 "}"); 1268 } 1269 1270 TEST_F(FormatTestJS, InterfaceDeclarations) { 1271 verifyFormat("interface I {\n" 1272 " x: string;\n" 1273 " enum: string[];\n" 1274 " enum?: string[];\n" 1275 "}\n" 1276 "var y;"); 1277 // Ensure that state is reset after parsing the interface. 1278 verifyFormat("interface a {}\n" 1279 "export function b() {}\n" 1280 "var x;"); 1281 1282 // Arrays of object type literals. 1283 verifyFormat("interface I {\n" 1284 " o: {}[];\n" 1285 "}"); 1286 } 1287 1288 TEST_F(FormatTestJS, EnumDeclarations) { 1289 verifyFormat("enum Foo {\n" 1290 " A = 1,\n" 1291 " B\n" 1292 "}"); 1293 verifyFormat("export /* somecomment*/ enum Foo {\n" 1294 " A = 1,\n" 1295 " B\n" 1296 "}"); 1297 verifyFormat("enum Foo {\n" 1298 " A = 1, // comment\n" 1299 " B\n" 1300 "}\n" 1301 "var x = 1;"); 1302 } 1303 1304 TEST_F(FormatTestJS, MetadataAnnotations) { 1305 verifyFormat("@A\nclass C {\n}"); 1306 verifyFormat("@A({arg: 'value'})\nclass C {\n}"); 1307 verifyFormat("@A\n@B\nclass C {\n}"); 1308 verifyFormat("class C {\n @A x: string;\n}"); 1309 verifyFormat("class C {\n" 1310 " @A\n" 1311 " private x(): string {\n" 1312 " return 'y';\n" 1313 " }\n" 1314 "}"); 1315 verifyFormat("class C {\n" 1316 " private x(@A x: string) {}\n" 1317 "}"); 1318 verifyFormat("class X {}\n" 1319 "class Y {}"); 1320 verifyFormat("class X {\n" 1321 " @property() private isReply = false;\n" 1322 "}\n"); 1323 } 1324 1325 TEST_F(FormatTestJS, TypeAliases) { 1326 verifyFormat("type X = number;\n" 1327 "class C {}"); 1328 verifyFormat("type X<Y> = Z<Y>;"); 1329 verifyFormat("type X = {\n" 1330 " y: number\n" 1331 "};\n" 1332 "class C {}"); 1333 } 1334 1335 TEST_F(FormatTestJS, TypeInterfaceLineWrapping) { 1336 const FormatStyle &Style = getGoogleJSStyleWithColumns(20); 1337 verifyFormat("type LongTypeIsReallyUnreasonablyLong =\n" 1338 " string;\n", 1339 "type LongTypeIsReallyUnreasonablyLong = string;\n", 1340 Style); 1341 verifyFormat( 1342 "interface AbstractStrategyFactoryProvider {\n" 1343 " a: number\n" 1344 "}\n", 1345 "interface AbstractStrategyFactoryProvider { a: number }\n", 1346 Style); 1347 } 1348 1349 TEST_F(FormatTestJS, Modules) { 1350 verifyFormat("import SomeThing from 'some/module.js';"); 1351 verifyFormat("import {X, Y} from 'some/module.js';"); 1352 verifyFormat("import a, {X, Y} from 'some/module.js';"); 1353 verifyFormat("import {X, Y,} from 'some/module.js';"); 1354 verifyFormat("import {X as myLocalX, Y as myLocalY} from 'some/module.js';"); 1355 // Ensure Automatic Semicolon Insertion does not break on "as\n". 1356 verifyFormat("import {X as myX} from 'm';", "import {X as\n" 1357 " myX} from 'm';"); 1358 verifyFormat("import * as lib from 'some/module.js';"); 1359 verifyFormat("var x = {import: 1};\nx.import = 2;"); 1360 1361 verifyFormat("export function fn() {\n" 1362 " return 'fn';\n" 1363 "}"); 1364 verifyFormat("export function A() {}\n" 1365 "export default function B() {}\n" 1366 "export function C() {}"); 1367 verifyFormat("export default () => {\n" 1368 " let x = 1;\n" 1369 " return x;\n" 1370 "}"); 1371 verifyFormat("export const x = 12;"); 1372 verifyFormat("export default class X {}"); 1373 verifyFormat("export {X, Y} from 'some/module.js';"); 1374 verifyFormat("export {X, Y,} from 'some/module.js';"); 1375 verifyFormat("export {SomeVeryLongExport as X, " 1376 "SomeOtherVeryLongExport as Y} from 'some/module.js';"); 1377 // export without 'from' is wrapped. 1378 verifyFormat("export let someRatherLongVariableName =\n" 1379 " someSurprisinglyLongVariable + someOtherRatherLongVar;"); 1380 // ... but not if from is just an identifier. 1381 verifyFormat("export {\n" 1382 " from as from,\n" 1383 " someSurprisinglyLongVariable as\n" 1384 " from\n" 1385 "};", 1386 getGoogleJSStyleWithColumns(20)); 1387 verifyFormat("export class C {\n" 1388 " x: number;\n" 1389 " y: string;\n" 1390 "}"); 1391 verifyFormat("export class X { y: number; }"); 1392 verifyFormat("export abstract class X { y: number; }"); 1393 verifyFormat("export default class X { y: number }"); 1394 verifyFormat("export default function() {\n return 1;\n}"); 1395 verifyFormat("export var x = 12;"); 1396 verifyFormat("class C {}\n" 1397 "export function f() {}\n" 1398 "var v;"); 1399 verifyFormat("export var x: number = 12;"); 1400 verifyFormat("export const y = {\n" 1401 " a: 1,\n" 1402 " b: 2\n" 1403 "};"); 1404 verifyFormat("export enum Foo {\n" 1405 " BAR,\n" 1406 " // adsdasd\n" 1407 " BAZ\n" 1408 "}"); 1409 verifyFormat("export default [\n" 1410 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 1411 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 1412 "];"); 1413 verifyFormat("export default [];"); 1414 verifyFormat("export default () => {};"); 1415 verifyFormat("export interface Foo { foo: number; }\n" 1416 "export class Bar {\n" 1417 " blah(): string {\n" 1418 " return this.blah;\n" 1419 " };\n" 1420 "}"); 1421 } 1422 1423 TEST_F(FormatTestJS, ImportWrapping) { 1424 verifyFormat("import {VeryLongImportsAreAnnoying, VeryLongImportsAreAnnoying," 1425 " VeryLongImportsAreAnnoying, VeryLongImportsAreAnnoying" 1426 "} from 'some/module.js';"); 1427 FormatStyle Style = getGoogleJSStyleWithColumns(80); 1428 Style.JavaScriptWrapImports = true; 1429 verifyFormat("import {\n" 1430 " VeryLongImportsAreAnnoying,\n" 1431 " VeryLongImportsAreAnnoying,\n" 1432 " VeryLongImportsAreAnnoying,\n" 1433 "} from 'some/module.js';", 1434 Style); 1435 verifyFormat("import {\n" 1436 " A,\n" 1437 " A,\n" 1438 "} from 'some/module.js';", 1439 Style); 1440 verifyFormat("export {\n" 1441 " A,\n" 1442 " A,\n" 1443 "} from 'some/module.js';", 1444 Style); 1445 } 1446 1447 TEST_F(FormatTestJS, TemplateStrings) { 1448 // Keeps any whitespace/indentation within the template string. 1449 verifyFormat("var x = `hello\n" 1450 " ${name}\n" 1451 " !`;", 1452 "var x = `hello\n" 1453 " ${ name }\n" 1454 " !`;"); 1455 1456 verifyFormat("var x =\n" 1457 " `hello ${world}` >= some();", 1458 getGoogleJSStyleWithColumns(34)); // Barely doesn't fit. 1459 verifyFormat("var x = `hello ${world}` >= some();", 1460 getGoogleJSStyleWithColumns(35)); // Barely fits. 1461 verifyFormat("var x = `hellö ${wörld}` >= söme();", 1462 getGoogleJSStyleWithColumns(35)); // Fits due to UTF-8. 1463 verifyFormat("var x = `hello\n" 1464 " ${world}` >=\n" 1465 " some();", 1466 "var x =\n" 1467 " `hello\n" 1468 " ${world}` >= some();", 1469 getGoogleJSStyleWithColumns(21)); // Barely doesn't fit. 1470 verifyFormat("var x = `hello\n" 1471 " ${world}` >= some();", 1472 "var x =\n" 1473 " `hello\n" 1474 " ${world}` >= some();", 1475 getGoogleJSStyleWithColumns(22)); // Barely fits. 1476 1477 verifyFormat("var x =\n" 1478 " `h`;", 1479 getGoogleJSStyleWithColumns(11)); 1480 verifyFormat("var x =\n `multi\n line`;", "var x = `multi\n line`;", 1481 getGoogleJSStyleWithColumns(13)); 1482 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 1483 " `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa`);"); 1484 // Repro for an obscure width-miscounting issue with template strings. 1485 verifyFormat( 1486 "someLongVariable =\n" 1487 " " 1488 "`${logPrefix[11]}/${logPrefix[12]}/${logPrefix[13]}${logPrefix[14]}`;", 1489 "someLongVariable = " 1490 "`${logPrefix[11]}/${logPrefix[12]}/${logPrefix[13]}${logPrefix[14]}`;"); 1491 1492 // Make sure template strings get a proper ColumnWidth assigned, even if they 1493 // are first token in line. 1494 verifyFormat( 1495 "var a = aaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 1496 " `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa`;"); 1497 1498 // Two template strings. 1499 verifyFormat("var x = `hello` == `hello`;"); 1500 1501 // Comments in template strings. 1502 verifyFormat("var x = `//a`;\n" 1503 "var y;", 1504 "var x =\n `//a`;\n" 1505 "var y ;"); 1506 verifyFormat("var x = `/*a`;\n" 1507 "var y;", 1508 "var x =\n `/*a`;\n" 1509 "var y;"); 1510 // Unterminated string literals in a template string. 1511 verifyFormat("var x = `'`; // comment with matching quote '\n" 1512 "var y;"); 1513 verifyFormat("var x = `\"`; // comment with matching quote \"\n" 1514 "var y;"); 1515 verifyFormat("it(`'aaaaaaaaaaaaaaa `, aaaaaaaaa);", 1516 "it(`'aaaaaaaaaaaaaaa `, aaaaaaaaa) ;", 1517 getGoogleJSStyleWithColumns(40)); 1518 // Backticks in a comment - not a template string. 1519 verifyFormat("var x = 1 // `/*a`;\n" 1520 " ;", 1521 "var x =\n 1 // `/*a`;\n" 1522 " ;"); 1523 verifyFormat("/* ` */ var x = 1; /* ` */", "/* ` */ var x\n= 1; /* ` */"); 1524 // Comment spans multiple template strings. 1525 verifyFormat("var x = `/*a`;\n" 1526 "var y = ` */ `;", 1527 "var x =\n `/*a`;\n" 1528 "var y =\n ` */ `;"); 1529 // Escaped backtick. 1530 verifyFormat("var x = ` \\` a`;\n" 1531 "var y;", 1532 "var x = ` \\` a`;\n" 1533 "var y;"); 1534 // Escaped dollar. 1535 verifyFormat("var x = ` \\${foo}`;\n"); 1536 1537 // The token stream can contain two string_literals in sequence, but that 1538 // doesn't mean that they are implicitly concatenated in JavaScript. 1539 verifyFormat("var f = `aaaa ${a ? 'a' : 'b'}`;"); 1540 1541 // Ensure that scopes are appropriately set around evaluated expressions in 1542 // template strings. 1543 verifyFormat("var f = `aaaaaaaaaaaaa:${aaaaaaa.aaaaa} aaaaaaaa\n" 1544 " aaaaaaaaaaaaa:${aaaaaaa.aaaaa} aaaaaaaa`;", 1545 "var f = `aaaaaaaaaaaaa:${aaaaaaa. aaaaa} aaaaaaaa\n" 1546 " aaaaaaaaaaaaa:${ aaaaaaa. aaaaa} aaaaaaaa`;"); 1547 verifyFormat("var x = someFunction(`${})`) //\n" 1548 " .oooooooooooooooooon();"); 1549 verifyFormat("var x = someFunction(`${aaaa}${\n" 1550 " aaaaa( //\n" 1551 " aaaaa)\n" 1552 " })`);"); 1553 } 1554 1555 TEST_F(FormatTestJS, TemplateStringMultiLineExpression) { 1556 verifyFormat("var f = `aaaaaaaaaaaaaaaaaa: ${\n" 1557 " aaaaa + //\n" 1558 " bbbb\n" 1559 " }`;", 1560 "var f = `aaaaaaaaaaaaaaaaaa: ${aaaaa + //\n" 1561 " bbbb}`;"); 1562 verifyFormat("var f = `\n" 1563 " aaaaaaaaaaaaaaaaaa: ${\n" 1564 " aaaaa + //\n" 1565 " bbbb\n" 1566 " }`;", 1567 "var f = `\n" 1568 " aaaaaaaaaaaaaaaaaa: ${ aaaaa + //\n" 1569 " bbbb }`;"); 1570 verifyFormat("var f = `\n" 1571 " aaaaaaaaaaaaaaaaaa: ${\n" 1572 " someFunction(\n" 1573 " aaaaa + //\n" 1574 " bbbb)\n" 1575 " }`;", 1576 "var f = `\n" 1577 " aaaaaaaaaaaaaaaaaa: ${someFunction (\n" 1578 " aaaaa + //\n" 1579 " bbbb)}`;"); 1580 1581 // It might be preferable to wrap before "someFunction". 1582 verifyFormat("var f = `\n" 1583 " aaaaaaaaaaaaaaaaaa: ${someFunction({\n" 1584 " aaaa: aaaaa,\n" 1585 " bbbb: bbbbb,\n" 1586 " })}`;", 1587 "var f = `\n" 1588 " aaaaaaaaaaaaaaaaaa: ${someFunction ({\n" 1589 " aaaa: aaaaa,\n" 1590 " bbbb: bbbbb,\n" 1591 " })}`;"); 1592 } 1593 1594 TEST_F(FormatTestJS, TemplateStringASI) { 1595 verifyFormat("var x = `hello${world}`;", "var x = `hello${\n" 1596 " world\n" 1597 "}`;"); 1598 } 1599 1600 TEST_F(FormatTestJS, NestedTemplateStrings) { 1601 verifyFormat( 1602 "var x = `<ul>${xs.map(x => `<li>${x}</li>`).join('\\n')}</ul>`;"); 1603 verifyFormat("var x = `he${({text: 'll'}.text)}o`;"); 1604 1605 // Crashed at some point. 1606 verifyFormat("}"); 1607 } 1608 1609 TEST_F(FormatTestJS, TaggedTemplateStrings) { 1610 verifyFormat("var x = html`<ul>`;"); 1611 } 1612 1613 TEST_F(FormatTestJS, CastSyntax) { 1614 verifyFormat("var x = <type>foo;"); 1615 verifyFormat("var x = foo as type;"); 1616 verifyFormat("let x = (a + b) as\n" 1617 " LongTypeIsLong;", 1618 getGoogleJSStyleWithColumns(20)); 1619 verifyFormat("foo = <Bar[]>[\n" 1620 " 1, //\n" 1621 " 2\n" 1622 "];"); 1623 verifyFormat("var x = [{x: 1} as type];"); 1624 verifyFormat("x = x as [a, b];"); 1625 verifyFormat("x = x as {a: string};"); 1626 verifyFormat("x = x as (string);"); 1627 verifyFormat("x = x! as (string);"); 1628 verifyFormat("var x = something.someFunction() as\n" 1629 " something;", 1630 getGoogleJSStyleWithColumns(40)); 1631 } 1632 1633 TEST_F(FormatTestJS, TypeArguments) { 1634 verifyFormat("class X<Y> {}"); 1635 verifyFormat("new X<Y>();"); 1636 verifyFormat("foo<Y>(a);"); 1637 verifyFormat("var x: X<Y>[];"); 1638 verifyFormat("class C extends D<E> implements F<G>, H<I> {}"); 1639 verifyFormat("function f(a: List<any> = null) {}"); 1640 verifyFormat("function f(): List<any> {}"); 1641 verifyFormat("function aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa():\n" 1642 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb {}"); 1643 verifyFormat("function aaaaaaaaaa(\n" 1644 " aaaaaaaaaaaaaaaa: aaaaaaaaaaaaaaaaaaa,\n" 1645 " aaaaaaaaaaaaaaaa: aaaaaaaaaaaaaaaaaaa):\n" 1646 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa {}"); 1647 } 1648 1649 TEST_F(FormatTestJS, UserDefinedTypeGuards) { 1650 verifyFormat( 1651 "function foo(check: Object):\n" 1652 " check is {foo: string, bar: string, baz: string, foobar: string} {\n" 1653 " return 'bar' in check;\n" 1654 "}\n"); 1655 } 1656 1657 TEST_F(FormatTestJS, OptionalTypes) { 1658 verifyFormat("function x(a?: b, c?, d?) {}"); 1659 verifyFormat("class X {\n" 1660 " y?: z;\n" 1661 " z?;\n" 1662 "}"); 1663 verifyFormat("interface X {\n" 1664 " y?(): z;\n" 1665 "}"); 1666 verifyFormat("constructor({aa}: {\n" 1667 " aa?: string,\n" 1668 " aaaaaaaa?: string,\n" 1669 " aaaaaaaaaaaaaaa?: boolean,\n" 1670 " aaaaaa?: List<string>\n" 1671 "}) {}"); 1672 } 1673 1674 TEST_F(FormatTestJS, IndexSignature) { 1675 verifyFormat("var x: {[k: string]: v};"); 1676 } 1677 1678 TEST_F(FormatTestJS, WrapAfterParen) { 1679 verifyFormat("xxxxxxxxxxx(\n" 1680 " aaa, aaa);", 1681 getGoogleJSStyleWithColumns(20)); 1682 verifyFormat("xxxxxxxxxxx(\n" 1683 " aaa, aaa, aaa,\n" 1684 " aaa, aaa, aaa);", 1685 getGoogleJSStyleWithColumns(20)); 1686 verifyFormat("xxxxxxxxxxx(\n" 1687 " aaaaaaaaaaaaaaaaaaaaaaaa,\n" 1688 " function(x) {\n" 1689 " y(); //\n" 1690 " });", 1691 getGoogleJSStyleWithColumns(40)); 1692 verifyFormat("while (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa &&\n" 1693 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}"); 1694 } 1695 1696 TEST_F(FormatTestJS, JSDocAnnotations) { 1697 verifyFormat("/**\n" 1698 " * @export {this.is.a.long.path.to.a.Type}\n" 1699 " */", 1700 "/**\n" 1701 " * @export {this.is.a.long.path.to.a.Type}\n" 1702 " */", 1703 getGoogleJSStyleWithColumns(20)); 1704 verifyFormat("/**\n" 1705 " * @mods {this.is.a.long.path.to.a.Type}\n" 1706 " */", 1707 "/**\n" 1708 " * @mods {this.is.a.long.path.to.a.Type}\n" 1709 " */", 1710 getGoogleJSStyleWithColumns(20)); 1711 verifyFormat("/**\n" 1712 " * @param {this.is.a.long.path.to.a.Type}\n" 1713 " */", 1714 "/**\n" 1715 " * @param {this.is.a.long.path.to.a.Type}\n" 1716 " */", 1717 getGoogleJSStyleWithColumns(20)); 1718 verifyFormat("/**\n" 1719 " * @see http://very/very/long/url/is/long\n" 1720 " */", 1721 "/**\n" 1722 " * @see http://very/very/long/url/is/long\n" 1723 " */", 1724 getGoogleJSStyleWithColumns(20)); 1725 verifyFormat( 1726 "/**\n" 1727 " * @param This is a\n" 1728 " * long comment but\n" 1729 " * no type\n" 1730 " */", 1731 "/**\n" 1732 " * @param This is a long comment but no type\n" 1733 " */", 1734 getGoogleJSStyleWithColumns(20)); 1735 // Don't break @param line, but reindent it and reflow unrelated lines. 1736 verifyFormat("{\n" 1737 " /**\n" 1738 " * long long long\n" 1739 " * long\n" 1740 " * @param {this.is.a.long.path.to.a.Type} a\n" 1741 " * long long long\n" 1742 " * long long\n" 1743 " */\n" 1744 " function f(a) {}\n" 1745 "}", 1746 "{\n" 1747 "/**\n" 1748 " * long long long long\n" 1749 " * @param {this.is.a.long.path.to.a.Type} a\n" 1750 " * long long long long\n" 1751 " * long\n" 1752 " */\n" 1753 " function f(a) {}\n" 1754 "}", 1755 getGoogleJSStyleWithColumns(20)); 1756 } 1757 1758 TEST_F(FormatTestJS, RequoteStringsSingle) { 1759 verifyFormat("var x = 'foo';", "var x = \"foo\";"); 1760 verifyFormat("var x = 'fo\\'o\\'';", "var x = \"fo'o'\";"); 1761 verifyFormat("var x = 'fo\\'o\\'';", "var x = \"fo\\'o'\";"); 1762 verifyFormat( 1763 "var x =\n" 1764 " 'foo\\'';", 1765 // Code below is 15 chars wide, doesn't fit into the line with the 1766 // \ escape added. 1767 "var x = \"foo'\";", getGoogleJSStyleWithColumns(15)); 1768 // Removes no-longer needed \ escape from ". 1769 verifyFormat("var x = 'fo\"o';", "var x = \"fo\\\"o\";"); 1770 // Code below fits into 15 chars *after* removing the \ escape. 1771 verifyFormat("var x = 'fo\"o';", "var x = \"fo\\\"o\";", 1772 getGoogleJSStyleWithColumns(15)); 1773 verifyFormat("// clang-format off\n" 1774 "let x = \"double\";\n" 1775 "// clang-format on\n" 1776 "let x = 'single';\n", 1777 "// clang-format off\n" 1778 "let x = \"double\";\n" 1779 "// clang-format on\n" 1780 "let x = \"single\";\n"); 1781 } 1782 1783 TEST_F(FormatTestJS, RequoteAndIndent) { 1784 verifyFormat("let x = someVeryLongFunctionThatGoesOnAndOn(\n" 1785 " 'double quoted string that needs wrapping');", 1786 "let x = someVeryLongFunctionThatGoesOnAndOn(" 1787 "\"double quoted string that needs wrapping\");"); 1788 1789 verifyFormat("let x =\n" 1790 " 'foo\\'oo';\n" 1791 "let x =\n" 1792 " 'foo\\'oo';", 1793 "let x=\"foo'oo\";\n" 1794 "let x=\"foo'oo\";", 1795 getGoogleJSStyleWithColumns(15)); 1796 } 1797 1798 TEST_F(FormatTestJS, RequoteStringsDouble) { 1799 FormatStyle DoubleQuotes = getGoogleStyle(FormatStyle::LK_JavaScript); 1800 DoubleQuotes.JavaScriptQuotes = FormatStyle::JSQS_Double; 1801 verifyFormat("var x = \"foo\";", DoubleQuotes); 1802 verifyFormat("var x = \"foo\";", "var x = 'foo';", DoubleQuotes); 1803 verifyFormat("var x = \"fo'o\";", "var x = 'fo\\'o';", DoubleQuotes); 1804 } 1805 1806 TEST_F(FormatTestJS, RequoteStringsLeave) { 1807 FormatStyle LeaveQuotes = getGoogleStyle(FormatStyle::LK_JavaScript); 1808 LeaveQuotes.JavaScriptQuotes = FormatStyle::JSQS_Leave; 1809 verifyFormat("var x = \"foo\";", LeaveQuotes); 1810 verifyFormat("var x = 'foo';", LeaveQuotes); 1811 } 1812 1813 TEST_F(FormatTestJS, SupportShebangLines) { 1814 verifyFormat("#!/usr/bin/env node\n" 1815 "var x = hello();", 1816 "#!/usr/bin/env node\n" 1817 "var x = hello();"); 1818 } 1819 1820 TEST_F(FormatTestJS, NonNullAssertionOperator) { 1821 verifyFormat("let x = foo!.bar();\n"); 1822 verifyFormat("let x = foo ? bar! : baz;\n"); 1823 verifyFormat("let x = !foo;\n"); 1824 verifyFormat("let x = foo[0]!;\n"); 1825 verifyFormat("let x = (foo)!;\n"); 1826 verifyFormat("let x = x(foo!);\n"); 1827 verifyFormat( 1828 "a.aaaaaa(a.a!).then(\n" 1829 " x => x(x));\n", 1830 getGoogleJSStyleWithColumns(20)); 1831 verifyFormat("let x = foo! - 1;\n"); 1832 verifyFormat("let x = {foo: 1}!;\n"); 1833 verifyFormat( 1834 "let x = hello.foo()!\n" 1835 " .foo()!\n" 1836 " .foo()!\n" 1837 " .foo()!;\n", 1838 getGoogleJSStyleWithColumns(20)); 1839 verifyFormat("let x = namespace!;\n"); 1840 verifyFormat("return !!x;\n"); 1841 } 1842 1843 TEST_F(FormatTestJS, Conditional) { 1844 verifyFormat("y = x ? 1 : 2;"); 1845 verifyFormat("x ? 1 : 2;"); 1846 verifyFormat("class Foo {\n" 1847 " field = true ? 1 : 2;\n" 1848 " method(a = true ? 1 : 2) {}\n" 1849 "}"); 1850 } 1851 1852 TEST_F(FormatTestJS, ImportComments) { 1853 verifyFormat("import {x} from 'x'; // from some location", 1854 getGoogleJSStyleWithColumns(25)); 1855 verifyFormat("// taze: x from 'location'", getGoogleJSStyleWithColumns(10)); 1856 verifyFormat("/// <reference path=\"some/location\" />", getGoogleJSStyleWithColumns(10)); 1857 } 1858 1859 TEST_F(FormatTestJS, Exponentiation) { 1860 verifyFormat("squared = x ** 2;"); 1861 verifyFormat("squared **= 2;"); 1862 } 1863 1864 } // end namespace tooling 1865 } // end namespace clang 1866