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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 "src/api.h" | 7 #include "src/api.h" |
8 #include "src/ast/ast.h" | 8 #include "src/ast/ast.h" |
9 #include "src/ast/ast-expression-rewriter.h" | 9 #include "src/ast/ast-expression-rewriter.h" |
10 #include "src/ast/ast-expression-visitor.h" | 10 #include "src/ast/ast-expression-visitor.h" |
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4387 | 4387 |
4388 class InitializerRewriter : public AstExpressionVisitor { | 4388 class InitializerRewriter : public AstExpressionVisitor { |
4389 public: | 4389 public: |
4390 InitializerRewriter(uintptr_t stack_limit, Expression* root, Parser* parser, | 4390 InitializerRewriter(uintptr_t stack_limit, Expression* root, Parser* parser, |
4391 Scope* scope) | 4391 Scope* scope) |
4392 : AstExpressionVisitor(stack_limit, root), | 4392 : AstExpressionVisitor(stack_limit, root), |
4393 parser_(parser), | 4393 parser_(parser), |
4394 scope_(scope) {} | 4394 scope_(scope) {} |
4395 | 4395 |
4396 private: | 4396 private: |
4397 void VisitExpression(Expression* expr) { | 4397 void VisitExpression(Expression* expr) override { |
4398 RewritableExpression* to_rewrite = expr->AsRewritableExpression(); | 4398 RewritableExpression* to_rewrite = expr->AsRewritableExpression(); |
4399 if (to_rewrite == nullptr || to_rewrite->is_rewritten()) return; | 4399 if (to_rewrite == nullptr || to_rewrite->is_rewritten()) return; |
4400 | 4400 |
4401 Parser::PatternRewriter::RewriteDestructuringAssignment(parser_, to_rewrite, | 4401 Parser::PatternRewriter::RewriteDestructuringAssignment(parser_, to_rewrite, |
4402 scope_); | 4402 scope_); |
4403 } | 4403 } |
4404 | 4404 |
| 4405 // Code in function literals does not need to be eagerly rewritten, it will be |
| 4406 // rewritten when scheduled. |
| 4407 void VisitFunctionLiteral(FunctionLiteral* expr) override {} |
| 4408 |
4405 private: | 4409 private: |
4406 Parser* parser_; | 4410 Parser* parser_; |
4407 Scope* scope_; | 4411 Scope* scope_; |
4408 }; | 4412 }; |
4409 | 4413 |
4410 | 4414 |
4411 void Parser::RewriteParameterInitializer(Expression* expr, Scope* scope) { | 4415 void Parser::RewriteParameterInitializer(Expression* expr, Scope* scope) { |
4412 InitializerRewriter rewriter(stack_limit_, expr, this, scope); | 4416 InitializerRewriter rewriter(stack_limit_, expr, this, scope); |
4413 rewriter.Run(); | 4417 rewriter.Run(); |
4414 } | 4418 } |
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6865 try_block, target); | 6869 try_block, target); |
6866 final_loop = target; | 6870 final_loop = target; |
6867 } | 6871 } |
6868 | 6872 |
6869 return final_loop; | 6873 return final_loop; |
6870 } | 6874 } |
6871 | 6875 |
6872 | 6876 |
6873 } // namespace internal | 6877 } // namespace internal |
6874 } // namespace v8 | 6878 } // namespace v8 |
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