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| 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | |
| 2 // for details. All rights reserved. Use of this source code is governed by a | |
| 3 // BSD-style license that can be found in the LICENSE file. | |
| 4 | |
| 5 part of tree; | |
| 6 | |
| 7 String unparse(Node node, {minify: true}) { | |
| 8 Unparser unparser = new Unparser(minify: minify); | |
| 9 unparser.unparse(node); | |
| 10 return unparser.result; | |
| 11 } | |
| 12 | |
| 13 class Unparser extends Indentation implements Visitor { | |
| 14 final StringBuffer sb = new StringBuffer(); | |
| 15 | |
| 16 String get result => sb.toString(); | |
| 17 | |
| 18 Unparser({this.minify: true, this.stripTypes: false}); | |
| 19 | |
| 20 bool minify; | |
| 21 bool stripTypes; | |
| 22 | |
| 23 void newline() { | |
| 24 if (!minify) { | |
| 25 sb.write("\n"); | |
| 26 onEmptyLine = true; | |
| 27 } | |
| 28 } | |
| 29 | |
| 30 void space([String token = " "]) { | |
| 31 write(minify ? "" : token); | |
| 32 } | |
| 33 | |
| 34 void addToken(Token token) { | |
| 35 if (token == null) return; | |
| 36 write(token.value); | |
| 37 if (identical(token.kind, KEYWORD_TOKEN) | |
| 38 || identical(token.kind, IDENTIFIER_TOKEN)) { | |
| 39 write(' '); | |
| 40 } | |
| 41 } | |
| 42 | |
| 43 bool onEmptyLine = true; | |
| 44 | |
| 45 write(object) { | |
| 46 String s = object.toString(); | |
| 47 if (s == '') return; | |
| 48 if (onEmptyLine) { | |
| 49 sb.write(indentation); | |
| 50 } | |
| 51 sb.write(s); | |
| 52 onEmptyLine = false; | |
| 53 } | |
| 54 | |
| 55 unparse(Node node) { visit(node); } | |
| 56 | |
| 57 visit(Node node) { | |
| 58 if (node != null) node.accept(this); | |
| 59 } | |
| 60 | |
| 61 visitBlock(Block node) => unparseBlockStatements(node.statements); | |
| 62 | |
| 63 unparseBlockStatements(NodeList statements) { | |
| 64 addToken(statements.beginToken); | |
| 65 | |
| 66 Link<Node> nodes = statements.nodes; | |
| 67 if (nodes != null && !nodes.isEmpty) { | |
| 68 indentMore(); | |
| 69 newline(); | |
| 70 visit(nodes.head); | |
| 71 String delimiter = | |
| 72 (statements.delimiter == null) ? "" : "${statements.delimiter}"; | |
| 73 for (Link link = nodes.tail; !link.isEmpty; link = link.tail) { | |
| 74 newline(); | |
| 75 visit(link.head); | |
| 76 } | |
| 77 indentLess(); | |
| 78 newline(); | |
| 79 } | |
| 80 if (statements.endToken != null) { | |
| 81 write(statements.endToken.value); | |
| 82 } | |
| 83 } | |
| 84 | |
| 85 | |
| 86 visitCascade(Cascade node) { | |
| 87 visit(node.expression); | |
| 88 } | |
| 89 | |
| 90 visitCascadeReceiver(CascadeReceiver node) { | |
| 91 visit(node.expression); | |
| 92 } | |
| 93 | |
| 94 unparseClassWithBody(ClassNode node, members) { | |
| 95 if (!node.modifiers.nodes.isEmpty) { | |
| 96 visit(node.modifiers); | |
| 97 write(' '); | |
| 98 } | |
| 99 write('class '); | |
| 100 visit(node.name); | |
| 101 if (node.typeParameters != null) { | |
| 102 visit(node.typeParameters); | |
| 103 } | |
| 104 if (node.extendsKeyword != null) { | |
| 105 write(' '); | |
| 106 addToken(node.extendsKeyword); | |
| 107 visit(node.superclass); | |
| 108 } | |
| 109 if (!node.interfaces.isEmpty) { | |
| 110 write(' '); | |
| 111 visit(node.interfaces); | |
| 112 } | |
| 113 space(); | |
| 114 write('{'); | |
| 115 if (!members.isEmpty) { | |
| 116 newline(); | |
| 117 indentMore(); | |
| 118 for (Node member in members) { | |
| 119 visit(member); | |
| 120 newline(); | |
| 121 } | |
| 122 indentLess(); | |
| 123 } | |
| 124 write('}'); | |
| 125 } | |
| 126 | |
| 127 visitClassNode(ClassNode node) { | |
| 128 unparseClassWithBody(node, node.body.nodes); | |
| 129 } | |
| 130 | |
| 131 visitMixinApplication(MixinApplication node) { | |
| 132 visit(node.superclass); | |
| 133 write(' with '); | |
| 134 visit(node.mixins); | |
| 135 } | |
| 136 | |
| 137 visitNamedMixinApplication(NamedMixinApplication node) { | |
| 138 if (!node.modifiers.nodes.isEmpty) { | |
| 139 visit(node.modifiers); | |
| 140 write(' '); | |
| 141 } | |
| 142 write('class '); | |
| 143 visit(node.name); | |
| 144 if (node.typeParameters != null) { | |
| 145 visit(node.typeParameters); | |
| 146 } | |
| 147 write(' = '); | |
| 148 visit(node.mixinApplication); | |
| 149 if (node.interfaces != null) { | |
| 150 write(' implements '); | |
| 151 visit(node.interfaces); | |
| 152 } | |
| 153 write(';'); | |
| 154 } | |
| 155 | |
| 156 visitConditional(Conditional node) { | |
| 157 visit(node.condition); | |
| 158 space(); | |
| 159 write(node.questionToken.value); | |
| 160 space(); | |
| 161 visit(node.thenExpression); | |
| 162 space(); | |
| 163 write(node.colonToken.value); | |
| 164 space(); | |
| 165 visit(node.elseExpression); | |
| 166 } | |
| 167 | |
| 168 visitExpressionStatement(ExpressionStatement node) { | |
| 169 visit(node.expression); | |
| 170 write(node.endToken.value); | |
| 171 } | |
| 172 | |
| 173 visitFor(For node) { | |
| 174 write(node.forToken.value); | |
| 175 space(); | |
| 176 write('('); | |
| 177 visit(node.initializer); | |
| 178 write(';'); | |
| 179 if (node.conditionStatement is! EmptyStatement) space(); | |
| 180 visit(node.conditionStatement); | |
| 181 if (!node.update.nodes.isEmpty) space(); | |
| 182 visit(node.update); | |
| 183 write(')'); | |
| 184 space(); | |
| 185 visit(node.body); | |
| 186 } | |
| 187 | |
| 188 visitFunctionDeclaration(FunctionDeclaration node) { | |
| 189 visit(node.function); | |
| 190 } | |
| 191 | |
| 192 void unparseFunctionName(Node name) { | |
| 193 // TODO(antonm): that's a workaround as currently FunctionExpression | |
| 194 // names are modelled with Send and it emits operator[] as only | |
| 195 // operator, without [] which are expected to be emitted with | |
| 196 // arguments. | |
| 197 if (name is Send) { | |
| 198 Send send = name; | |
| 199 assert(send is !SendSet); | |
| 200 if (!send.isOperator) { | |
| 201 // Looks like a factory method. | |
| 202 visit(send.receiver); | |
| 203 write('.'); | |
| 204 } else { | |
| 205 visit(send.receiver); | |
| 206 Identifier identifier = send.selector.asIdentifier(); | |
| 207 if (identical(identifier.token.kind, KEYWORD_TOKEN)) { | |
| 208 write(' '); | |
| 209 } else if (identifier.source == 'negate') { | |
| 210 // TODO(ahe): Remove special case for negate. | |
| 211 write(' '); | |
| 212 } | |
| 213 } | |
| 214 visit(send.selector); | |
| 215 } else { | |
| 216 visit(name); | |
| 217 } | |
| 218 } | |
| 219 | |
| 220 visitAsyncModifier(AsyncModifier node) { | |
| 221 write(node.asyncToken.value); | |
| 222 if (node.starToken != null) { | |
| 223 write(node.starToken.value); | |
| 224 } | |
| 225 } | |
| 226 | |
| 227 visitFunctionExpression(FunctionExpression node) { | |
| 228 if (!node.modifiers.nodes.isEmpty) { | |
| 229 visit(node.modifiers); | |
| 230 write(' '); | |
| 231 } | |
| 232 if (node.returnType != null && !stripTypes) { | |
| 233 visit(node.returnType); | |
| 234 write(' '); | |
| 235 } | |
| 236 if (node.getOrSet != null) { | |
| 237 write(node.getOrSet.value); | |
| 238 write(' '); | |
| 239 } | |
| 240 unparseFunctionName(node.name); | |
| 241 visit(node.parameters); | |
| 242 if (node.initializers != null) { | |
| 243 space(); | |
| 244 write(':'); | |
| 245 space(); | |
| 246 unparseNodeListFrom(node.initializers, node.initializers.nodes, | |
| 247 spaces: true); | |
| 248 } | |
| 249 visit(node.asyncModifier); | |
| 250 if (node.body != null && node.body is! EmptyStatement) space(); | |
| 251 visit(node.body); | |
| 252 } | |
| 253 | |
| 254 visitIdentifier(Identifier node) { | |
| 255 write(node.token.value); | |
| 256 } | |
| 257 | |
| 258 visitIf(If node) { | |
| 259 write(node.ifToken.value); | |
| 260 space(); | |
| 261 visit(node.condition); | |
| 262 space(); | |
| 263 visit(node.thenPart); | |
| 264 if (node.hasElsePart) { | |
| 265 space(); | |
| 266 write(node.elseToken.value); | |
| 267 space(); | |
| 268 if (node.elsePart is !Block && minify) write(' '); | |
| 269 visit(node.elsePart); | |
| 270 } | |
| 271 } | |
| 272 | |
| 273 visitLiteralBool(LiteralBool node) { | |
| 274 write(node.token.value); | |
| 275 } | |
| 276 | |
| 277 visitLiteralDouble(LiteralDouble node) { | |
| 278 write(node.token.value); | |
| 279 // -Lit is represented as a send. | |
| 280 if (node.token.kind == PLUS_TOKEN) write(node.token.next.value); | |
| 281 } | |
| 282 | |
| 283 visitLiteralInt(LiteralInt node) { | |
| 284 write(node.token.value); | |
| 285 // -Lit is represented as a send. | |
| 286 if (node.token.kind == PLUS_TOKEN) write(node.token.next.value); | |
| 287 } | |
| 288 | |
| 289 visitLiteralString(LiteralString node) { | |
| 290 write(node.token.value); | |
| 291 } | |
| 292 | |
| 293 visitStringJuxtaposition(StringJuxtaposition node) { | |
| 294 visit(node.first); | |
| 295 write(" "); | |
| 296 visit(node.second); | |
| 297 } | |
| 298 | |
| 299 visitLiteralNull(LiteralNull node) { | |
| 300 write(node.token.value); | |
| 301 } | |
| 302 | |
| 303 visitLiteralSymbol(LiteralSymbol node) { | |
| 304 write(node.hashToken.value); | |
| 305 unparseNodeListOfIdentifiers(node.identifiers); | |
| 306 } | |
| 307 | |
| 308 unparseNodeListOfIdentifiers(NodeList node) { | |
| 309 // Manually print the list to avoid spaces around operators in unminified | |
| 310 // code. | |
| 311 Link<Node> l = node.nodes; | |
| 312 write(l.head.asIdentifier().token.value); | |
| 313 for (l = l.tail; !l.isEmpty; l = l.tail) { | |
| 314 write("."); | |
| 315 write(l.head.asIdentifier().token.value); | |
| 316 } | |
| 317 } | |
| 318 | |
| 319 visitNewExpression(NewExpression node) { | |
| 320 addToken(node.newToken); | |
| 321 visit(node.send); | |
| 322 } | |
| 323 | |
| 324 visitLiteralList(LiteralList node) { | |
| 325 if (node.constKeyword != null) write(node.constKeyword.value); | |
| 326 visit(node.typeArguments); | |
| 327 visit(node.elements); | |
| 328 // If list is empty, emit space after [] to disambiguate cases like []==[]. | |
| 329 if (minify && node.elements.isEmpty) write(' '); | |
| 330 } | |
| 331 | |
| 332 visitModifiers(Modifiers node) { | |
| 333 // Spaces are already included as delimiter. | |
| 334 unparseNodeList(node.nodes, spaces: false); | |
| 335 } | |
| 336 | |
| 337 /** | |
| 338 * Unparses given NodeList starting from specific node. | |
| 339 */ | |
| 340 unparseNodeListFrom(NodeList node, Link<Node> from, {bool spaces: true}) { | |
| 341 if (from.isEmpty) return; | |
| 342 String delimiter = (node.delimiter == null) ? "" : "${node.delimiter}"; | |
| 343 visit(from.head); | |
| 344 for (Link link = from.tail; !link.isEmpty; link = link.tail) { | |
| 345 write(delimiter); | |
| 346 if (spaces) space(); | |
| 347 visit(link.head); | |
| 348 } | |
| 349 } | |
| 350 | |
| 351 unparseNodeList(NodeList node, {bool spaces: true}) { | |
| 352 addToken(node.beginToken); | |
| 353 if (node.nodes != null) { | |
| 354 unparseNodeListFrom(node, node.nodes, spaces: spaces); | |
| 355 } | |
| 356 if (node.endToken != null) write(node.endToken.value); | |
| 357 } | |
| 358 | |
| 359 visitNodeList(NodeList node) { | |
| 360 unparseNodeList(node); | |
| 361 } | |
| 362 | |
| 363 visitOperator(Operator node) { | |
| 364 visitIdentifier(node); | |
| 365 } | |
| 366 | |
| 367 visitRedirectingFactoryBody(RedirectingFactoryBody node) { | |
| 368 space(); | |
| 369 write(node.beginToken.value); | |
| 370 space(); | |
| 371 visit(node.constructorReference); | |
| 372 write(node.endToken.value); | |
| 373 } | |
| 374 | |
| 375 visitRethrow(Rethrow node) { | |
| 376 write('rethrow;'); | |
| 377 } | |
| 378 | |
| 379 visitReturn(Return node) { | |
| 380 write(node.beginToken.value); | |
| 381 if (node.hasExpression && node.beginToken.stringValue != '=>') { | |
| 382 write(' '); | |
| 383 } | |
| 384 if (node.beginToken.stringValue == '=>') space(); | |
| 385 visit(node.expression); | |
| 386 if (node.endToken != null) write(node.endToken.value); | |
| 387 } | |
| 388 | |
| 389 visitYield(Yield node) { | |
| 390 write(node.yieldToken); | |
| 391 write(node.starToken); | |
| 392 space(); | |
| 393 visit(node.expression); | |
| 394 write(node.endToken); | |
| 395 } | |
| 396 | |
| 397 | |
| 398 unparseSendReceiver(Send node, {bool spacesNeeded: false}) { | |
| 399 if (node.receiver == null) return; | |
| 400 visit(node.receiver); | |
| 401 CascadeReceiver asCascadeReceiver = node.receiver.asCascadeReceiver(); | |
| 402 if (asCascadeReceiver != null) { | |
| 403 newline(); | |
| 404 indentMore(); | |
| 405 indentMore(); | |
| 406 write(asCascadeReceiver.cascadeOperator.value); | |
| 407 indentLess(); | |
| 408 indentLess(); | |
| 409 } else if (node.selector.asOperator() == null) { | |
| 410 write('.'); | |
| 411 } else if (spacesNeeded) { | |
| 412 write(' '); | |
| 413 } | |
| 414 } | |
| 415 | |
| 416 unparseSendArgument(Send node, {bool spacesNeeded: false}) { | |
| 417 if (node.argumentsNode == null) return; | |
| 418 | |
| 419 if(node.isIsNotCheck) { | |
| 420 Send argNode = node.arguments.head; | |
| 421 visit(argNode.selector); | |
| 422 space(); | |
| 423 visit(argNode.receiver); | |
| 424 } else { | |
| 425 if (spacesNeeded) write(' '); | |
| 426 visit(node.argumentsNode); | |
| 427 } | |
| 428 } | |
| 429 | |
| 430 visitSend(Send node) { | |
| 431 Operator op = node.selector.asOperator(); | |
| 432 String opString = op != null ? op.source : null; | |
| 433 bool spacesNeeded = minify | |
| 434 ? identical(opString, 'is') || identical(opString, 'as') | |
| 435 : (opString != null && !node.isPrefix && !node.isIndex); | |
| 436 | |
| 437 void minusMinusSpace(Node other) { | |
| 438 if (other != null && opString == '-') { | |
| 439 Token beginToken = other.getBeginToken(); | |
| 440 if (beginToken != null && beginToken.stringValue != null && beginToken.s
tringValue.startsWith('-')) { | |
| 441 sb.write(' '); | |
| 442 spacesNeeded = false; | |
| 443 } | |
| 444 } | |
| 445 } | |
| 446 | |
| 447 if (node.isPrefix) { | |
| 448 visit(node.selector); | |
| 449 // Add a space for sequences like - -x (double unary minus). | |
| 450 minusMinusSpace(node.receiver); | |
| 451 } | |
| 452 | |
| 453 unparseSendReceiver(node, spacesNeeded: spacesNeeded); | |
| 454 if (!node.isPrefix && !node.isIndex) { | |
| 455 visit(node.selector); | |
| 456 } | |
| 457 minusMinusSpace(node.argumentsNode); | |
| 458 | |
| 459 unparseSendArgument(node, spacesNeeded: spacesNeeded); | |
| 460 } | |
| 461 | |
| 462 visitSendSet(SendSet node) { | |
| 463 if (node.isPrefix) { | |
| 464 if (minify) { | |
| 465 write(' '); | |
| 466 } | |
| 467 visit(node.assignmentOperator); | |
| 468 } | |
| 469 unparseSendReceiver(node); | |
| 470 if (node.isIndex) { | |
| 471 write('['); | |
| 472 visit(node.arguments.head); | |
| 473 write(']'); | |
| 474 if (!node.isPrefix) { | |
| 475 if (!node.isPostfix) { | |
| 476 space(); | |
| 477 } | |
| 478 visit(node.assignmentOperator); | |
| 479 if (!node.isPostfix) { | |
| 480 space(); | |
| 481 } | |
| 482 } | |
| 483 unparseNodeListFrom(node.argumentsNode, node.argumentsNode.nodes.tail); | |
| 484 } else { | |
| 485 visit(node.selector); | |
| 486 if (!node.isPrefix) { | |
| 487 if (!node.isPostfix && node.assignmentOperator.source != ':') { | |
| 488 space(); | |
| 489 } | |
| 490 visit(node.assignmentOperator); | |
| 491 if (!node.isPostfix) { | |
| 492 space(); | |
| 493 } | |
| 494 if (minify && node.assignmentOperator.source != '=') { | |
| 495 write(' '); | |
| 496 } | |
| 497 } | |
| 498 visit(node.argumentsNode); | |
| 499 } | |
| 500 } | |
| 501 | |
| 502 visitThrow(Throw node) { | |
| 503 write(node.throwToken.value); | |
| 504 write(' '); | |
| 505 visit(node.expression); | |
| 506 } | |
| 507 | |
| 508 visitAwait(Await node) { | |
| 509 write(node.awaitToken.value); | |
| 510 write(' '); | |
| 511 visit(node.expression); | |
| 512 } | |
| 513 | |
| 514 visitTypeAnnotation(TypeAnnotation node) { | |
| 515 visit(node.typeName); | |
| 516 visit(node.typeArguments); | |
| 517 } | |
| 518 | |
| 519 visitTypeVariable(TypeVariable node) { | |
| 520 visit(node.name); | |
| 521 if (node.bound != null) { | |
| 522 write(' extends '); | |
| 523 visit(node.bound); | |
| 524 } | |
| 525 } | |
| 526 | |
| 527 visitVariableDefinitions(VariableDefinitions node) { | |
| 528 if (node.metadata != null) { | |
| 529 visit(node.metadata); | |
| 530 write(' '); | |
| 531 } | |
| 532 visit(node.modifiers); | |
| 533 if (!node.modifiers.nodes.isEmpty) { | |
| 534 write(' '); | |
| 535 } | |
| 536 // TODO(sigurdm): Avoid writing the space when [stripTypes], but still write | |
| 537 // it if the 'type; is var. | |
| 538 if (node.type != null) { | |
| 539 visit(node.type); | |
| 540 write(' '); | |
| 541 } | |
| 542 visit(node.definitions); | |
| 543 } | |
| 544 | |
| 545 visitDoWhile(DoWhile node) { | |
| 546 write(node.doKeyword.value); | |
| 547 if (node.body is !Block) { | |
| 548 write(' '); | |
| 549 } else { | |
| 550 space(); | |
| 551 } | |
| 552 visit(node.body); | |
| 553 space(); | |
| 554 write(node.whileKeyword.value); | |
| 555 space(); | |
| 556 visit(node.condition); | |
| 557 write(node.endToken.value); | |
| 558 } | |
| 559 | |
| 560 visitWhile(While node) { | |
| 561 write(node.whileKeyword.value); | |
| 562 space(); | |
| 563 visit(node.condition); | |
| 564 space(); | |
| 565 visit(node.body); | |
| 566 } | |
| 567 | |
| 568 visitParenthesizedExpression(ParenthesizedExpression node) { | |
| 569 write(node.getBeginToken().value); | |
| 570 visit(node.expression); | |
| 571 write(node.getEndToken().value); | |
| 572 } | |
| 573 | |
| 574 visitStringInterpolation(StringInterpolation node) { | |
| 575 visit(node.string); | |
| 576 unparseNodeList(node.parts, spaces: false); | |
| 577 } | |
| 578 | |
| 579 visitStringInterpolationPart(StringInterpolationPart node) { | |
| 580 write('\${'); // TODO(ahe): Preserve the real tokens. | |
| 581 visit(node.expression); | |
| 582 write('}'); | |
| 583 visit(node.string); | |
| 584 } | |
| 585 | |
| 586 visitEmptyStatement(EmptyStatement node) { | |
| 587 write(node.semicolonToken.value); | |
| 588 } | |
| 589 | |
| 590 visitGotoStatement(GotoStatement node) { | |
| 591 write(node.keywordToken.value); | |
| 592 if (node.target != null) { | |
| 593 write(' '); | |
| 594 visit(node.target); | |
| 595 } | |
| 596 write(node.semicolonToken.value); | |
| 597 } | |
| 598 | |
| 599 visitBreakStatement(BreakStatement node) { | |
| 600 visitGotoStatement(node); | |
| 601 } | |
| 602 | |
| 603 visitContinueStatement(ContinueStatement node) { | |
| 604 visitGotoStatement(node); | |
| 605 } | |
| 606 | |
| 607 visitForIn(ForIn node) { | |
| 608 if (node.awaitToken != null) { | |
| 609 write(node.awaitToken.value); | |
| 610 write(' '); | |
| 611 } | |
| 612 write(node.forToken.value); | |
| 613 space(); | |
| 614 write('('); | |
| 615 visit(node.declaredIdentifier); | |
| 616 write(' '); | |
| 617 addToken(node.inToken); | |
| 618 visit(node.expression); | |
| 619 write(')'); | |
| 620 space(); | |
| 621 visit(node.body); | |
| 622 } | |
| 623 | |
| 624 visitLabel(Label node) { | |
| 625 visit(node.identifier); | |
| 626 write(node.colonToken.value); | |
| 627 } | |
| 628 | |
| 629 visitLabeledStatement(LabeledStatement node) { | |
| 630 visit(node.labels); | |
| 631 visit(node.statement); | |
| 632 } | |
| 633 | |
| 634 visitLiteralMap(LiteralMap node) { | |
| 635 if (node.constKeyword != null) write(node.constKeyword.value); | |
| 636 if (node.typeArguments != null) visit(node.typeArguments); | |
| 637 visit(node.entries); | |
| 638 } | |
| 639 | |
| 640 visitLiteralMapEntry(LiteralMapEntry node) { | |
| 641 visit(node.key); | |
| 642 write(node.colonToken.value); | |
| 643 space(); | |
| 644 visit(node.value); | |
| 645 } | |
| 646 | |
| 647 visitNamedArgument(NamedArgument node) { | |
| 648 visit(node.name); | |
| 649 write(node.colonToken.value); | |
| 650 space(); | |
| 651 visit(node.expression); | |
| 652 } | |
| 653 | |
| 654 visitSwitchStatement(SwitchStatement node) { | |
| 655 addToken(node.switchKeyword); | |
| 656 visit(node.parenthesizedExpression); | |
| 657 space(); | |
| 658 unparseNodeList(node.cases, spaces: false); | |
| 659 } | |
| 660 | |
| 661 visitSwitchCase(SwitchCase node) { | |
| 662 newline(); | |
| 663 indentMore(); | |
| 664 visit(node.labelsAndCases); | |
| 665 if (node.isDefaultCase) { | |
| 666 write('default:'); | |
| 667 } | |
| 668 unparseBlockStatements(node.statements); | |
| 669 indentLess(); | |
| 670 } | |
| 671 | |
| 672 unparseImportTag(String uri, {String prefix, | |
| 673 List<String> shows: const <String>[], | |
| 674 bool isDeferred: false}) { | |
| 675 String deferredString = isDeferred ? ' deferred' : ''; | |
| 676 String prefixString = prefix == null ? '' : ' as $prefix'; | |
| 677 String showString = shows.isEmpty ? '' : ' show ${shows.join(", ")}'; | |
| 678 write('import "$uri"$deferredString$prefixString$showString;'); | |
| 679 newline(); | |
| 680 } | |
| 681 | |
| 682 unparseExportTag(String uri, {List<String> shows: const []}) { | |
| 683 String suffix = shows.isEmpty ? '' : ' show ${shows.join(", ")}'; | |
| 684 write('export "$uri"$suffix;'); | |
| 685 newline(); | |
| 686 } | |
| 687 | |
| 688 visitTryStatement(TryStatement node) { | |
| 689 addToken(node.tryKeyword); | |
| 690 visit(node.tryBlock); | |
| 691 visit(node.catchBlocks); | |
| 692 if (node.finallyKeyword != null) { | |
| 693 space(); | |
| 694 addToken(node.finallyKeyword); | |
| 695 visit(node.finallyBlock); | |
| 696 } | |
| 697 } | |
| 698 | |
| 699 visitCaseMatch(CaseMatch node) { | |
| 700 addToken(node.caseKeyword); | |
| 701 visit(node.expression); | |
| 702 write(node.colonToken.value); | |
| 703 } | |
| 704 | |
| 705 visitCatchBlock(CatchBlock node) { | |
| 706 addToken(node.onKeyword); | |
| 707 if (node.type != null) { | |
| 708 visit(node.type); | |
| 709 write(' '); | |
| 710 } | |
| 711 space(); | |
| 712 addToken(node.catchKeyword); | |
| 713 visit(node.formals); | |
| 714 space(); | |
| 715 visit(node.block); | |
| 716 } | |
| 717 | |
| 718 visitTypedef(Typedef node) { | |
| 719 addToken(node.typedefKeyword); | |
| 720 if (node.returnType != null) { | |
| 721 visit(node.returnType); | |
| 722 write(' '); | |
| 723 } | |
| 724 visit(node.name); | |
| 725 if (node.typeParameters != null) { | |
| 726 visit(node.typeParameters); | |
| 727 } | |
| 728 visit(node.formals); | |
| 729 write(node.endToken.value); | |
| 730 } | |
| 731 | |
| 732 visitLibraryName(LibraryName node) { | |
| 733 addToken(node.libraryKeyword); | |
| 734 node.visitChildren(this); | |
| 735 write(node.getEndToken().value); | |
| 736 newline(); | |
| 737 } | |
| 738 | |
| 739 visitImport(Import node) { | |
| 740 addToken(node.importKeyword); | |
| 741 visit(node.uri); | |
| 742 if (node.isDeferred) { | |
| 743 write(' deferred'); | |
| 744 } | |
| 745 if (node.prefix != null) { | |
| 746 write(' as '); | |
| 747 visit(node.prefix); | |
| 748 } | |
| 749 if (node.combinators != null) { | |
| 750 write(' '); | |
| 751 visit(node.combinators); | |
| 752 } | |
| 753 write(node.getEndToken().value); | |
| 754 newline(); | |
| 755 } | |
| 756 | |
| 757 visitExport(Export node) { | |
| 758 addToken(node.exportKeyword); | |
| 759 visit(node.uri); | |
| 760 if (node.combinators != null) { | |
| 761 write(' '); | |
| 762 visit(node.combinators); | |
| 763 } | |
| 764 write(node.getEndToken().value); | |
| 765 newline(); | |
| 766 } | |
| 767 | |
| 768 visitPart(Part node) { | |
| 769 addToken(node.partKeyword); | |
| 770 visit(node.uri); | |
| 771 write(node.getEndToken().value); | |
| 772 } | |
| 773 | |
| 774 visitPartOf(PartOf node) { | |
| 775 addToken(node.partKeyword); | |
| 776 addToken(node.ofKeyword); | |
| 777 visit(node.name); | |
| 778 write(node.getEndToken().value); | |
| 779 } | |
| 780 | |
| 781 visitCombinator(Combinator node) { | |
| 782 addToken(node.keywordToken); | |
| 783 visit(node.identifiers); | |
| 784 } | |
| 785 | |
| 786 visitMetadata(Metadata node) { | |
| 787 addToken(node.token); | |
| 788 visit(node.expression); | |
| 789 } | |
| 790 | |
| 791 visitNode(Node node) { | |
| 792 throw 'internal error'; // Should not be called. | |
| 793 } | |
| 794 | |
| 795 visitExpression(Expression node) { | |
| 796 throw 'internal error'; // Should not be called. | |
| 797 } | |
| 798 | |
| 799 visitLibraryTag(LibraryTag node) { | |
| 800 throw 'internal error'; // Should not be called. | |
| 801 } | |
| 802 | |
| 803 visitLibraryDependency(Node node) { | |
| 804 throw 'internal error'; // Should not be called. | |
| 805 } | |
| 806 | |
| 807 visitLiteral(Literal node) { | |
| 808 throw 'internal error'; // Should not be called. | |
| 809 } | |
| 810 | |
| 811 visitLoop(Loop node) { | |
| 812 throw 'internal error'; // Should not be called. | |
| 813 } | |
| 814 | |
| 815 visitPostfix(Postfix node) { | |
| 816 throw 'internal error'; // Should not be called. | |
| 817 } | |
| 818 | |
| 819 visitPrefix(Prefix node) { | |
| 820 throw 'internal error'; // Should not be called. | |
| 821 } | |
| 822 | |
| 823 visitStatement(Statement node) { | |
| 824 throw 'internal error'; // Should not be called. | |
| 825 } | |
| 826 | |
| 827 visitStringNode(StringNode node) { | |
| 828 throw 'internal error'; // Should not be called. | |
| 829 } | |
| 830 } | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 694353007:
Move dart2js from sdk/lib/_internal/compiler to pkg/compiler (Closed)
Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart