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1 //===-- PragmaCommentHandler.h - find all symbols----------------*- C++ -*-===//
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2 //
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3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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4 // See https://llvm.org/LICENSE.txt for license information.
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5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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6 //
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7 //===----------------------------------------------------------------------===//
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8
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9 #ifndef LLVM_CLANG_TOOLS_EXTRA_FIND_ALL_SYMBOLS_PRAGMA_COMMENT_HANDLER_H
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10 #define LLVM_CLANG_TOOLS_EXTRA_FIND_ALL_SYMBOLS_PRAGMA_COMMENT_HANDLER_H
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11
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12 #include "clang/Basic/SourceLocation.h"
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13 #include "clang/Lex/Preprocessor.h"
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14 #include <map>
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15
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16 namespace clang {
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17 namespace find_all_symbols {
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18
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19 class HeaderMapCollector;
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20
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21 /// PragmaCommentHandler parses pragma comment on include files to
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22 /// determine when we should include a different header from the header that
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23 /// directly defines a symbol.
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24 ///
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25 /// Currently it only supports IWYU private pragma:
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26 /// https://github.com/include-what-you-use/include-what-you-use/blob/master/docs/IWYUPragmas.md#iwyu-pragma-private
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27 class PragmaCommentHandler : public clang::CommentHandler {
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28 public:
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29 PragmaCommentHandler(HeaderMapCollector *Collector) : Collector(Collector) {}
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30
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31 bool HandleComment(Preprocessor &PP, SourceRange Range) override;
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32
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33 private:
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34 HeaderMapCollector *const Collector;
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35 };
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36
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37 } // namespace find_all_symbols
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38 } // namespace clang
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39
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40 #endif // LLVM_CLANG_TOOLS_EXTRA_FIND_ALL_SYMBOLS_PRAGMA_COMMENT_HANDLER_H
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