TUSummaryEncoding.h

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//===- TUSummaryEncoding.h --------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file defines the TUSummaryEncoding class, which represents a
// translation unit summary in its serialized, format-specific encoding.
//
//===----------------------------------------------------------------------===//
 
#ifndef LLVM_CLANG_SCALABLESTATICANALYSIS_CORE_ENTITYLINKER_TUSUMMARYENCODING_H
#define LLVM_CLANG_SCALABLESTATICANALYSIS_CORE_ENTITYLINKER_TUSUMMARYENCODING_H
 
#include "clang/ScalableStaticAnalysis/Core/EntityLinker/EntitySummaryEncoding.h"
#include "clang/ScalableStaticAnalysis/Core/Model/BuildNamespace.h"
#include "clang/ScalableStaticAnalysis/Core/Model/EntityId.h"
#include "clang/ScalableStaticAnalysis/Core/Model/EntityIdTable.h"
#include "clang/ScalableStaticAnalysis/Core/Model/EntityLinkage.h"
#include "clang/ScalableStaticAnalysis/Core/Model/SummaryName.h"
#include "llvm/TargetParser/Triple.h"
#include <map>
#include <memory>
 
namespace clang::ssaf {
 
/// Represents a translation unit summary in its serialized encoding.
///
/// TUSummaryEncoding holds entity summary data in a format-specific encoding
/// that can be manipulated by the entity linker without deserializing the
/// full EntitySummary objects. This enables efficient entity ID patching
/// during the linking process.
class TUSummaryEncoding {
  friend class EntityLinker;
  friend class SerializationFormat;
  friend class TestFixture;
 
  // Target triple of the translation unit.
  llvm::Triple TargetTriple;
 
  // The namespace identifying this translation unit.
  BuildNamespace TUNamespace;
 
  // Maps entity names to their unique identifiers within this TU.
  EntityIdTable IdTable;
 
  // Maps entity IDs to their linkage properties (None, Internal, External).
  std::map<EntityId, EntityLinkage> LinkageTable;
 
  // Encoded summary data organized by summary type and entity ID.
  std::map<SummaryName,
           std::map<EntityId, std::unique_ptr<EntitySummaryEncoding>>>
      Data;
 
public:
  TUSummaryEncoding(llvm::Triple TargetTriple, BuildNamespace TUNamespace)
      : TargetTriple(std::move(TargetTriple)),
        TUNamespace(std::move(TUNamespace)) {}
 
  const llvm::Triple &getTargetTriple() const { return TargetTriple; }
};
 
} // namespace clang::ssaf
 
#endif // LLVM_CLANG_SCALABLESTATICANALYSIS_CORE_ENTITYLINKER_TUSUMMARYENCODING_H