51 lines
1.7 KiB
C++
51 lines
1.7 KiB
C++
//===- EntityIdTable.h ------------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_ANALYSIS_SCALABLE_MODEL_ENTITY_ID_TABLE_H
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#define LLVM_CLANG_ANALYSIS_SCALABLE_MODEL_ENTITY_ID_TABLE_H
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#include "clang/Analysis/Scalable/Model/EntityId.h"
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#include "clang/Analysis/Scalable/Model/EntityName.h"
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#include <functional>
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#include <map>
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namespace clang::ssaf {
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/// Manages entity name interning and provides efficient EntityId handles.
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///
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/// The table maps each unique EntityName to exactly one EntityId.
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/// Entities are never removed.
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class EntityIdTable {
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std::map<EntityName, EntityId> Entities;
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public:
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EntityIdTable() = default;
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/// Creates or retrieves an EntityId for the given EntityName.
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///
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/// If the entity already exists in the table, returns its existing Id.
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/// Otherwise, creates and returns a new Id. This operation is idempotent.
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EntityId getId(const EntityName &Name);
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/// Returns true if an entity with the given name exists in the table.
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bool contains(const EntityName &Name) const;
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/// Invokes the callback for each entity in the table.
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///
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/// Iteration order is unspecified.
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void forEach(
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llvm::function_ref<void(const EntityName &, EntityId)> Callback) const;
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/// Returns the number of unique entities in the table.
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size_t count() const { return Entities.size(); }
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};
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} // namespace clang::ssaf
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#endif // LLVM_CLANG_ANALYSIS_SCALABLE_MODEL_ENTITY_ID_TABLE_H
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