File Manager

003 File Manager

Current Path: /usr/src/contrib/llvm-project/clang/lib/Serialization

usr / src / contrib / llvm-project / clang / lib / Serialization /

📁 ..
📄 ASTCommon.cpp(13.08 KB)
📄 ASTCommon.h(4.62 KB)
📄 ASTReader.cpp(459.85 KB)
📄 ASTReaderDecl.cpp(173.45 KB)
📄 ASTReaderInternals.h(8.79 KB)
📄 ASTReaderStmt.cpp(125.27 KB)
📄 ASTWriter.cpp(243.33 KB)
📄 ASTWriterDecl.cpp(98.79 KB)
📄 ASTWriterStmt.cpp(88.21 KB)
📄 GeneratePCH.cpp(2.9 KB)
📄 GlobalModuleIndex.cpp(30.63 KB)
📄 InMemoryModuleCache.cpp(2.45 KB)
📄 ModuleFile.cpp(3.64 KB)
📄 ModuleFileExtension.cpp(745 B)
📄 ModuleManager.cpp(17.01 KB)
📄 MultiOnDiskHashTable.h(11.08 KB)
📄 PCHContainerOperations.cpp(2.26 KB)

Editing: InMemoryModuleCache.cpp

//===- InMemoryModuleCache.cpp - Cache for loaded memory buffers ----------===//
//
// 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
//
//===----------------------------------------------------------------------===//

#include "clang/Serialization/InMemoryModuleCache.h"
#include "llvm/Support/MemoryBuffer.h"

using namespace clang;

InMemoryModuleCache::State
InMemoryModuleCache::getPCMState(llvm::StringRef Filename) const {
  auto I = PCMs.find(Filename);
  if (I == PCMs.end())
    return Unknown;
  if (I->second.IsFinal)
    return Final;
  return I->second.Buffer ? Tentative : ToBuild;
}

llvm::MemoryBuffer &
InMemoryModuleCache::addPCM(llvm::StringRef Filename,
                            std::unique_ptr<llvm::MemoryBuffer> Buffer) {
  auto Insertion = PCMs.insert(std::make_pair(Filename, std::move(Buffer)));
  assert(Insertion.second && "Already has a PCM");
  return *Insertion.first->second.Buffer;
}

llvm::MemoryBuffer &
InMemoryModuleCache::addBuiltPCM(llvm::StringRef Filename,
                                 std::unique_ptr<llvm::MemoryBuffer> Buffer) {
  auto &PCM = PCMs[Filename];
  assert(!PCM.IsFinal && "Trying to override finalized PCM?");
  assert(!PCM.Buffer && "Trying to override tentative PCM?");
  PCM.Buffer = std::move(Buffer);
  PCM.IsFinal = true;
  return *PCM.Buffer;
}

llvm::MemoryBuffer *
InMemoryModuleCache::lookupPCM(llvm::StringRef Filename) const {
  auto I = PCMs.find(Filename);
  if (I == PCMs.end())
    return nullptr;
  return I->second.Buffer.get();
}

bool InMemoryModuleCache::isPCMFinal(llvm::StringRef Filename) const {
  return getPCMState(Filename) == Final;
}

bool InMemoryModuleCache::shouldBuildPCM(llvm::StringRef Filename) const {
  return getPCMState(Filename) == ToBuild;
}

bool InMemoryModuleCache::tryToDropPCM(llvm::StringRef Filename) {
  auto I = PCMs.find(Filename);
  assert(I != PCMs.end() && "PCM to remove is unknown...");

auto &PCM = I->second;
  assert(PCM.Buffer && "PCM to remove is scheduled to be built...");

if (PCM.IsFinal)
    return true;

PCM.Buffer.reset();
  return false;
}

void InMemoryModuleCache::finalizePCM(llvm::StringRef Filename) {
  auto I = PCMs.find(Filename);
  assert(I != PCMs.end() && "PCM to finalize is unknown...");

auto &PCM = I->second;
  assert(PCM.Buffer && "Trying to finalize a dropped PCM...");
  PCM.IsFinal = true;
}

003 File Manager

Editing: InMemoryModuleCache.cpp

Upload File

Create Folder