| 1 | //===-- FindAllMacros.cpp - find all macros ---------------------*- 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 | #include "FindAllMacros.h" |
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| 10 | #include "HeaderMapCollector.h" |
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| 11 | #include "PathConfig.h" |
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| 12 | #include "SymbolInfo.h" |
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| 13 | #include "clang/Basic/FileManager.h" |
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| 14 | #include "clang/Basic/IdentifierTable.h" |
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| 15 | #include "clang/Basic/SourceManager.h" |
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| 16 | #include "clang/Lex/MacroInfo.h" |
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| 17 | #include "clang/Lex/Token.h" |
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| 18 | #include "llvm/Support/Path.h" |
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| 19 | #include <optional> |
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| 20 | |
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| 21 | namespace clang { |
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| 22 | namespace find_all_symbols { |
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| 23 | |
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| 24 | std::optional<SymbolInfo> |
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| 25 | FindAllMacros::CreateMacroSymbol(const Token &MacroNameTok, |
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| 26 | const MacroInfo *info) { |
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| 27 | std::string FilePath = |
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| 28 | getIncludePath(SM: *SM, Loc: info->getDefinitionLoc(), Collector); |
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| 29 | if (FilePath.empty()) |
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| 30 | return std::nullopt; |
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| 31 | return SymbolInfo(MacroNameTok.getIdentifierInfo()->getName(), |
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| 32 | SymbolInfo::SymbolKind::Macro, FilePath, {}); |
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| 33 | } |
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| 34 | |
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| 35 | void FindAllMacros::MacroDefined(const Token &MacroNameTok, |
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| 36 | const MacroDirective *MD) { |
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| 37 | if (auto Symbol = CreateMacroSymbol(MacroNameTok, info: MD->getMacroInfo())) |
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| 38 | ++FileSymbols[*Symbol].Seen; |
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| 39 | } |
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| 40 | |
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| 41 | void FindAllMacros::MacroUsed(const Token &Name, const MacroDefinition &MD) { |
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| 42 | if (!MD || !SM->isInMainFile(Loc: SM->getExpansionLoc(Loc: Name.getLocation()))) |
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| 43 | return; |
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| 44 | if (auto Symbol = CreateMacroSymbol(MacroNameTok: Name, info: MD.getMacroInfo())) |
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| 45 | ++FileSymbols[*Symbol].Used; |
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| 46 | } |
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| 47 | |
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| 48 | void FindAllMacros::MacroExpands(const Token &MacroNameTok, |
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| 49 | const MacroDefinition &MD, SourceRange Range, |
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| 50 | const MacroArgs *Args) { |
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| 51 | MacroUsed(Name: MacroNameTok, MD); |
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| 52 | } |
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| 53 | |
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| 54 | void FindAllMacros::Ifdef(SourceLocation Loc, const Token &MacroNameTok, |
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| 55 | const MacroDefinition &MD) { |
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| 56 | MacroUsed(Name: MacroNameTok, MD); |
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| 57 | } |
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| 58 | |
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| 59 | void FindAllMacros::Ifndef(SourceLocation Loc, const Token &MacroNameTok, |
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| 60 | const MacroDefinition &MD) { |
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| 61 | MacroUsed(Name: MacroNameTok, MD); |
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| 62 | } |
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| 63 | |
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| 64 | void FindAllMacros::EndOfMainFile() { |
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| 65 | Reporter->reportSymbols( |
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| 66 | FileName: SM->getFileEntryRefForID(FID: SM->getMainFileID())->getName(), Symbols: FileSymbols); |
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| 67 | FileSymbols.clear(); |
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| 68 | } |
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| 69 | |
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| 70 | } // namespace find_all_symbols |
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| 71 | } // namespace clang |
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| 72 | |
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