blob: 21eaeafd20273f59840fa1e767a694429b168d6a [file] [log] [blame]
// Copyright 2016 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef V8_AST_AST_FUNCTION_LITERAL_ID_REINDEXER_H_
#define V8_AST_AST_FUNCTION_LITERAL_ID_REINDEXER_H_
#include "src/ast/ast-traversal-visitor.h"
#ifdef DEBUG
#include <set>
#endif
namespace v8 {
namespace internal {
// Changes the ID of all FunctionLiterals in the given Expression by adding the
// given delta.
class AstFunctionLiteralIdReindexer final
: public AstTraversalVisitor<AstFunctionLiteralIdReindexer> {
public:
AstFunctionLiteralIdReindexer(size_t stack_limit, int delta);
AstFunctionLiteralIdReindexer(const AstFunctionLiteralIdReindexer&) = delete;
AstFunctionLiteralIdReindexer& operator=(
const AstFunctionLiteralIdReindexer&) = delete;
~AstFunctionLiteralIdReindexer();
void Reindex(Expression* pattern);
// AstTraversalVisitor implementation.
void VisitFunctionLiteral(FunctionLiteral* lit);
void VisitClassLiteral(ClassLiteral* lit);
private:
int delta_;
#ifdef DEBUG
// Visited set, only used in DCHECKs for verification.
std::set<FunctionLiteral*> visited_;
// Visit all function literals, checking if they have already been visited
// (are in the visited set).
void CheckVisited(Expression* expr);
#else
void CheckVisited(Expression* expr) {}
#endif
};
} // namespace internal
} // namespace v8
#endif // V8_AST_AST_FUNCTION_LITERAL_ID_REINDEXER_H_