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| 1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "src/parsing/parser.h" | 5 #include "src/parsing/parser.h" |
| 6 | 6 |
| 7 #include <memory> | 7 #include <memory> |
| 8 | 8 |
| 9 #include "src/api.h" | 9 #include "src/api.h" |
| 10 #include "src/ast/ast-expression-rewriter.h" | 10 #include "src/ast/ast-expression-rewriter.h" |
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| 285 name, function_scope, body, materialized_literal_count, | 285 name, function_scope, body, materialized_literal_count, |
| 286 expected_property_count, parameter_count, parameter_count, | 286 expected_property_count, parameter_count, parameter_count, |
| 287 FunctionLiteral::kNoDuplicateParameters, | 287 FunctionLiteral::kNoDuplicateParameters, |
| 288 FunctionLiteral::kAnonymousExpression, default_eager_compile_hint(), pos); | 288 FunctionLiteral::kAnonymousExpression, default_eager_compile_hint(), pos); |
| 289 | 289 |
| 290 function_literal->set_requires_class_field_init(requires_class_field_init); | 290 function_literal->set_requires_class_field_init(requires_class_field_init); |
| 291 | 291 |
| 292 return function_literal; | 292 return function_literal; |
| 293 } | 293 } |
| 294 | 294 |
| 295 | |
| 296 // ---------------------------------------------------------------------------- | |
| 297 // Target is a support class to facilitate manipulation of the | |
| 298 // Parser's target_stack_ (the stack of potential 'break' and | |
| 299 // 'continue' statement targets). Upon construction, a new target is | |
| 300 // added; it is removed upon destruction. | |
| 301 | |
| 302 class ParserTarget BASE_EMBEDDED { | |
| 303 public: | |
| 304 ParserTarget(ParserBase<Parser>* parser, BreakableStatement* statement) | |
| 305 : variable_(&parser->impl()->target_stack_), | |
| 306 statement_(statement), | |
| 307 previous_(parser->impl()->target_stack_) { | |
| 308 parser->impl()->target_stack_ = this; | |
| 309 } | |
| 310 | |
| 311 ~ParserTarget() { *variable_ = previous_; } | |
| 312 | |
| 313 ParserTarget* previous() { return previous_; } | |
| 314 BreakableStatement* statement() { return statement_; } | |
| 315 | |
| 316 private: | |
| 317 ParserTarget** variable_; | |
| 318 BreakableStatement* statement_; | |
| 319 ParserTarget* previous_; | |
| 320 }; | |
| 321 | |
| 322 class ParserTargetScope BASE_EMBEDDED { | |
| 323 public: | |
| 324 explicit ParserTargetScope(ParserBase<Parser>* parser) | |
| 325 : variable_(&parser->impl()->target_stack_), | |
| 326 previous_(parser->impl()->target_stack_) { | |
| 327 parser->impl()->target_stack_ = nullptr; | |
| 328 } | |
| 329 | |
| 330 ~ParserTargetScope() { *variable_ = previous_; } | |
| 331 | |
| 332 private: | |
| 333 ParserTarget** variable_; | |
| 334 ParserTarget* previous_; | |
| 335 }; | |
| 336 | |
| 337 | |
| 338 // ---------------------------------------------------------------------------- | 295 // ---------------------------------------------------------------------------- |
| 339 // The CHECK_OK macro is a convenient macro to enforce error | 296 // The CHECK_OK macro is a convenient macro to enforce error |
| 340 // handling for functions that may fail (by returning !*ok). | 297 // handling for functions that may fail (by returning !*ok). |
| 341 // | 298 // |
| 342 // CAUTION: This macro appends extra statements after a call, | 299 // CAUTION: This macro appends extra statements after a call, |
| 343 // thus it must never be used where only a single statement | 300 // thus it must never be used where only a single statement |
| 344 // is correct (e.g. an if statement branch w/o braces)! | 301 // is correct (e.g. an if statement branch w/o braces)! |
| 345 | 302 |
| 346 #define CHECK_OK_VALUE(x) ok); \ | 303 #define CHECK_OK_VALUE(x) ok); \ |
| 347 if (!*ok) return x; \ | 304 if (!*ok) return x; \ |
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| 5440 | 5397 |
| 5441 return final_loop; | 5398 return final_loop; |
| 5442 } | 5399 } |
| 5443 | 5400 |
| 5444 #undef CHECK_OK | 5401 #undef CHECK_OK |
| 5445 #undef CHECK_OK_VOID | 5402 #undef CHECK_OK_VOID |
| 5446 #undef CHECK_FAILED | 5403 #undef CHECK_FAILED |
| 5447 | 5404 |
| 5448 } // namespace internal | 5405 } // namespace internal |
| 5449 } // namespace v8 | 5406 } // namespace v8 |
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