diff options
Diffstat (limited to 'include/clang/Lex/Preprocessor.h')
| -rw-r--r-- | include/clang/Lex/Preprocessor.h | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/include/clang/Lex/Preprocessor.h b/include/clang/Lex/Preprocessor.h index 2d2a31f611..fca5796068 100644 --- a/include/clang/Lex/Preprocessor.h +++ b/include/clang/Lex/Preprocessor.h @@ -274,8 +274,9 @@ class Preprocessor : public RefCountedBase<Preprocessor> { }; SmallVector<MacroExpandsInfo, 2> DelayedMacroExpandsCallbacks; - /// Macros - For each IdentifierInfo with 'HasMacro' set, we keep a mapping - /// to the actual definition of the macro. + /// Macros - For each IdentifierInfo that was associated with a macro, we + /// keep a mapping to the history of all macro definitions and #undefs in + /// the reverse order (the latest one is in the head of the list). llvm::DenseMap<IdentifierInfo*, MacroInfo*> Macros; /// \brief Macros that we want to warn because they are not used at the end @@ -470,8 +471,10 @@ public: void setMacroInfo(IdentifierInfo *II, MacroInfo *MI, bool LoadedFromAST = false); - /// macro_iterator/macro_begin/macro_end - This allows you to walk the current - /// state of the macro table. This visits every currently-defined macro. + /// macro_iterator/macro_begin/macro_end - This allows you to walk the macro + /// history table. Currently defined macros have + /// IdentifierInfo::hasMacroDefinition() set and an empty + /// MacroInfo::getUndefLoc() at the head of the list. typedef llvm::DenseMap<IdentifierInfo*, MacroInfo*>::const_iterator macro_iterator; macro_iterator macro_begin(bool IncludeExternalMacros = true) const; |