llvm-project/clang-tools-extra/include-fixer/find-all-symbols/HeaderMapCollector.h

55 lines
1.8 KiB
C++

//===-- HeaderMapCoolector.h - find all symbols------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_TOOLS_EXTRA_FIND_ALL_SYMBOLS_HEADER_MAP_COLLECTOR_H
#define LLVM_CLANG_TOOLS_EXTRA_FIND_ALL_SYMBOLS_HEADER_MAP_COLLECTOR_H
#include "llvm/ADT/StringMap.h"
#include <string>
namespace clang {
namespace find_all_symbols {
/// \brief HeaderMappCollector collects all remapping header files. This maps
/// complete header names or postfixes of header names to header names.
class HeaderMapCollector {
public:
typedef llvm::StringMap<std::string> HeaderMap;
HeaderMapCollector() : PostfixMappingTable(nullptr) {}
explicit HeaderMapCollector(const HeaderMap *PostfixMap)
: PostfixMappingTable(PostfixMap) {}
void addHeaderMapping(llvm::StringRef OrignalHeaderPath,
llvm::StringRef MappingHeaderPath) {
HeaderMappingTable[OrignalHeaderPath] = MappingHeaderPath;
};
/// Check if there is a mapping from \p Header or its postfix to another
/// header name.
/// \param Header A header name.
/// \return \p Header itself if there is no mapping for it; otherwise, return
/// a mapped header name.
llvm::StringRef getMappedHeader(llvm::StringRef Header) const;
private:
/// A string-to-string map saving the mapping relationship.
HeaderMap HeaderMappingTable;
// A postfix-to-header name map.
// This is a reference to a hard-coded map.
const HeaderMap *const PostfixMappingTable;
};
} // namespace find_all_symbols
} // namespace clang
#endif // LLVM_CLANG_TOOLS_EXTRA_FIND_ALL_SYMBOLS_HEADER_MAP_COLLECTOR_H