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

58 lines
2.0 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 "llvm/Support/Regex.h"
#include <string>
#include <vector>
namespace clang {
namespace find_all_symbols {
/// \brief HeaderMappCollector collects all remapping header files. This maps
/// complete header names or header name regex patterns to header names.
class HeaderMapCollector {
public:
typedef llvm::StringMap<std::string> HeaderMap;
typedef std::vector<std::pair<const char *, const char *>> RegexHeaderMap;
HeaderMapCollector() : RegexHeaderMappingTable(nullptr) {}
explicit HeaderMapCollector(const RegexHeaderMap *RegexHeaderMappingTable)
: RegexHeaderMappingTable(RegexHeaderMappingTable) {}
void addHeaderMapping(llvm::StringRef OrignalHeaderPath,
llvm::StringRef MappingHeaderPath) {
HeaderMappingTable[OrignalHeaderPath] = MappingHeaderPath;
};
/// Check if there is a mapping from \p Header or a regex pattern that matches
/// it 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 map from header patterns to header names.
// This is a reference to a hard-coded map.
const RegexHeaderMap *const RegexHeaderMappingTable;
};
} // namespace find_all_symbols
} // namespace clang
#endif // LLVM_CLANG_TOOLS_EXTRA_FIND_ALL_SYMBOLS_HEADER_MAP_COLLECTOR_H