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C++ SourceManager::createFileIDForMemBuffer方法代码示例

本文整理汇总了C++中SourceManager::createFileIDForMemBuffer方法的典型用法代码示例。如果您正苦于以下问题:C++ SourceManager::createFileIDForMemBuffer方法的具体用法?C++ SourceManager::createFileIDForMemBuffer怎么用?C++ SourceManager::createFileIDForMemBuffer使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在SourceManager的用法示例。


在下文中一共展示了SourceManager::createFileIDForMemBuffer方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: ConvertBackendLocation

/// ConvertBackendLocation - Convert a location in a temporary llvm::SourceMgr
/// buffer to be a valid FullSourceLoc.
static FullSourceLoc ConvertBackendLocation(const llvm::SMDiagnostic &D,
                                            SourceManager &CSM) {
  // Get both the clang and llvm source managers.  The location is relative to
  // a memory buffer that the LLVM Source Manager is handling, we need to add
  // a copy to the Clang source manager.
  const llvm::SourceMgr &LSM = *D.getSourceMgr();

  // We need to copy the underlying LLVM memory buffer because llvm::SourceMgr
  // already owns its one and clang::SourceManager wants to own its one.
  const MemoryBuffer *LBuf =
  LSM.getMemoryBuffer(LSM.FindBufferContainingLoc(D.getLoc()));

  // Create the copy and transfer ownership to clang::SourceManager.
  llvm::MemoryBuffer *CBuf =
  llvm::MemoryBuffer::getMemBufferCopy(LBuf->getBuffer(),
                                       LBuf->getBufferIdentifier());
  FileID FID = CSM.createFileIDForMemBuffer(CBuf);

  // Translate the offset into the file.
  unsigned Offset = D.getLoc().getPointer()  - LBuf->getBufferStart();
  SourceLocation NewLoc =
  CSM.getLocForStartOfFile(FID).getLocWithOffset(Offset);
  return FullSourceLoc(NewLoc, CSM);
}
开发者ID:bhushan23,项目名称:clang,代码行数:26,代码来源:CodeGenAction.cpp


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