90d260e0f4
Bug: v8:11074 Change-Id: I82d84f03a8a9361cc1299a28cd9e4ba757930dd6 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2569560 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#71635}
54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
// Copyright 2016 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef V8_AST_AST_FUNCTION_LITERAL_ID_REINDEXER_H_
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#define V8_AST_AST_FUNCTION_LITERAL_ID_REINDEXER_H_
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#include "src/ast/ast-traversal-visitor.h"
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#include "src/base/macros.h"
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#ifdef DEBUG
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#include <set>
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#endif
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namespace v8 {
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namespace internal {
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// Changes the ID of all FunctionLiterals in the given Expression by adding the
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// given delta.
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class AstFunctionLiteralIdReindexer final
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: public AstTraversalVisitor<AstFunctionLiteralIdReindexer> {
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public:
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AstFunctionLiteralIdReindexer(size_t stack_limit, int delta);
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AstFunctionLiteralIdReindexer(const AstFunctionLiteralIdReindexer&) = delete;
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AstFunctionLiteralIdReindexer& operator=(
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const AstFunctionLiteralIdReindexer&) = delete;
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~AstFunctionLiteralIdReindexer();
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void Reindex(Expression* pattern);
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// AstTraversalVisitor implementation.
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void VisitFunctionLiteral(FunctionLiteral* lit);
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void VisitClassLiteral(ClassLiteral* lit);
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private:
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int delta_;
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#ifdef DEBUG
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// Visited set, only used in DCHECKs for verification.
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std::set<FunctionLiteral*> visited_;
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// Visit all function literals, checking if they have already been visited
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// (are in the visited set).
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void CheckVisited(Expression* expr);
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#else
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void CheckVisited(Expression* expr) {}
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#endif
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};
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} // namespace internal
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} // namespace v8
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#endif // V8_AST_AST_FUNCTION_LITERAL_ID_REINDEXER_H_
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