forked from OSchip/llvm-project
57 lines
2.0 KiB
C++
57 lines
2.0 KiB
C++
//===-- HeaderMapCoolector.h - find all symbols------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_TOOLS_EXTRA_FIND_ALL_SYMBOLS_HEADER_MAP_COLLECTOR_H
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#define LLVM_CLANG_TOOLS_EXTRA_FIND_ALL_SYMBOLS_HEADER_MAP_COLLECTOR_H
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#include "llvm/ADT/StringMap.h"
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#include "llvm/Support/Regex.h"
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#include <string>
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#include <vector>
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namespace clang {
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namespace find_all_symbols {
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/// \brief HeaderMappCollector collects all remapping header files. This maps
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/// complete header names or header name regex patterns to header names.
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class HeaderMapCollector {
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public:
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typedef llvm::StringMap<std::string> HeaderMap;
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typedef std::vector<std::pair<const char *, const char *>> RegexHeaderMap;
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HeaderMapCollector() = default;
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explicit HeaderMapCollector(const RegexHeaderMap *RegexHeaderMappingTable);
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void addHeaderMapping(llvm::StringRef OrignalHeaderPath,
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llvm::StringRef MappingHeaderPath) {
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HeaderMappingTable[OrignalHeaderPath] = MappingHeaderPath;
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};
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/// Check if there is a mapping from \p Header or a regex pattern that matches
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/// it to another header name.
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/// \param Header A header name.
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/// \return \p Header itself if there is no mapping for it; otherwise, return
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/// a mapped header name.
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llvm::StringRef getMappedHeader(llvm::StringRef Header) const;
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private:
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/// A string-to-string map saving the mapping relationship.
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HeaderMap HeaderMappingTable;
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// A map from header patterns to header names.
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// The header names are not owned. This is only threadsafe because the regexes
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// never fail.
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mutable std::vector<std::pair<llvm::Regex, const char *>>
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RegexHeaderMappingTable;
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};
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} // namespace find_all_symbols
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} // namespace clang
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#endif // LLVM_CLANG_TOOLS_EXTRA_FIND_ALL_SYMBOLS_HEADER_MAP_COLLECTOR_H
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