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| 1 // Copyright 2015 the V8 project authors. All rights reserved. | 1 // Copyright 2015 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/ast/ast.h" | 5 #include "src/ast/ast.h" |
| 6 #include "src/ast/ast-expression-rewriter.h" | 6 #include "src/ast/ast-expression-rewriter.h" |
| 7 | 7 |
| 8 namespace v8 { | 8 namespace v8 { |
| 9 namespace internal { | 9 namespace internal { |
| 10 | 10 |
| 11 // ---------------------------------------------------------------------------- | 11 // ---------------------------------------------------------------------------- |
| 12 // Implementation of AstExpressionRewriter | 12 // Implementation of AstExpressionRewriter |
| 13 // The AST is traversed but no actual rewriting takes place, unless the | 13 // The AST is traversed but no actual rewriting takes place, unless the |
| 14 // Visit methods are overriden in subclasses. | 14 // Visit methods are overriden in subclasses. |
| 15 | 15 |
| 16 #define REWRITE_THIS(node) \ | 16 #define REWRITE_THIS(node) \ |
| 17 do { \ | 17 do { \ |
| 18 if (!RewriteExpression(node)) return; \ | 18 if (!RewriteExpression(node)) return; \ |
| 19 } while (false) | 19 } while (false) |
| 20 #define NOTHING() DCHECK_NULL(replacement_) | 20 #define NOTHING() DCHECK_NULL(replacement_) |
| 21 | 21 |
| 22 | 22 void AstExpressionRewriter::VisitDeclarations(Declaration::List* declarations) { |
| 23 void AstExpressionRewriter::VisitDeclarations( | 23 for (Declaration::List::Iterator it = declarations->begin(); |
| 24 ZoneList<Declaration*>* declarations) { | 24 it != declarations->end(); ++it) { |
| 25 for (int i = 0; i < declarations->length(); i++) { | 25 AST_REWRITE(Declaration, *it, it = replacement); |
| 26 AST_REWRITE_LIST_ELEMENT(Declaration, declarations, i); | |
| 27 } | 26 } |
| 28 } | 27 } |
| 29 | 28 |
| 30 | 29 |
| 31 void AstExpressionRewriter::VisitStatements(ZoneList<Statement*>* statements) { | 30 void AstExpressionRewriter::VisitStatements(ZoneList<Statement*>* statements) { |
| 32 for (int i = 0; i < statements->length(); i++) { | 31 for (int i = 0; i < statements->length(); i++) { |
| 33 AST_REWRITE_LIST_ELEMENT(Statement, statements, i); | 32 AST_REWRITE_LIST_ELEMENT(Statement, statements, i); |
| 34 // Not stopping when a jump statement is found. | 33 // Not stopping when a jump statement is found. |
| 35 } | 34 } |
| 36 } | 35 } |
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| 383 | 382 |
| 384 void AstExpressionRewriter::VisitRewritableExpression( | 383 void AstExpressionRewriter::VisitRewritableExpression( |
| 385 RewritableExpression* node) { | 384 RewritableExpression* node) { |
| 386 REWRITE_THIS(node); | 385 REWRITE_THIS(node); |
| 387 AST_REWRITE(Expression, node->expression(), node->Rewrite(replacement)); | 386 AST_REWRITE(Expression, node->expression(), node->Rewrite(replacement)); |
| 388 } | 387 } |
| 389 | 388 |
| 390 | 389 |
| 391 } // namespace internal | 390 } // namespace internal |
| 392 } // namespace v8 | 391 } // namespace v8 |
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