Line data Source code
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
3 : // found in the LICENSE file.
4 :
5 : #ifndef V8_AST_AST_EXPRESSION_REWRITER_H_
6 : #define V8_AST_AST_EXPRESSION_REWRITER_H_
7 :
8 : #include "src/allocation.h"
9 : #include "src/ast/ast.h"
10 : #include "src/ast/scopes.h"
11 : #include "src/type-info.h"
12 : #include "src/zone/zone.h"
13 :
14 : namespace v8 {
15 : namespace internal {
16 :
17 : // A rewriting Visitor over a CompilationInfo's AST that invokes
18 : // VisitExpression on each expression node.
19 :
20 : // This AstVistor is not final, and provides the AstVisitor methods as virtual
21 : // methods so they can be specialized by subclasses.
22 : class AstExpressionRewriter : public AstVisitor<AstExpressionRewriter> {
23 : public:
24 : explicit AstExpressionRewriter(Isolate* isolate) {
25 : InitializeAstRewriter(isolate);
26 : }
27 3276 : explicit AstExpressionRewriter(uintptr_t stack_limit) {
28 : InitializeAstRewriter(stack_limit);
29 : }
30 3276 : virtual ~AstExpressionRewriter() {}
31 :
32 : virtual void VisitDeclarations(Declaration::List* declarations);
33 : virtual void VisitStatements(ZoneList<Statement*>* statements);
34 : virtual void VisitExpressions(ZoneList<Expression*>* expressions);
35 :
36 : virtual void VisitLiteralProperty(LiteralProperty* property);
37 :
38 : protected:
39 : virtual bool RewriteExpression(Expression* expr) = 0;
40 :
41 : private:
42 68188 : DEFINE_AST_REWRITER_SUBCLASS_MEMBERS();
43 :
44 : #define DECLARE_VISIT(type) virtual void Visit##type(type* node);
45 : AST_NODE_LIST(DECLARE_VISIT)
46 : #undef DECLARE_VISIT
47 :
48 : DISALLOW_COPY_AND_ASSIGN(AstExpressionRewriter);
49 : };
50 :
51 : } // namespace internal
52 : } // namespace v8
53 :
54 : #endif // V8_AST_AST_EXPRESSION_REWRITER_H_
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