For Lexer's isAt[Start/End]OfMacroExpansion add an out parameter for the macro

start/end location.

It is commonly needed after calling the function; with this way we avoid
recalculating it.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148479 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 12 insertions, 4 deletions

diff --git a/include/clang/Lex/Lexer.h b/include/clang/Lex/Lexer.h
index 1751d22b0b..99c16d292a 100644
--- a/include/clang/Lex/Lexer.h
+++ b/include/clang/Lex/Lexer.h
@@ -313,15 +313,23 @@ public:
 
   /// \brief Returns true if the given MacroID location points at the first
   /// token of the macro expansion.
+  ///
+  /// \param MacroBegin If non-null and function returns true, it is set to
+  /// begin location of the macro.
   static bool isAtStartOfMacroExpansion(SourceLocation loc,
-                                            const SourceManager &SM,
-                                            const LangOptions &LangOpts);
+                                        const SourceManager &SM,
+                                        const LangOptions &LangOpts,
+                                        SourceLocation *MacroBegin = 0);
 
   /// \brief Returns true if the given MacroID location points at the last
   /// token of the macro expansion.
+  ///
+  /// \param MacroBegin If non-null and function returns true, it is set to
+  /// end location of the macro.
   static bool isAtEndOfMacroExpansion(SourceLocation loc,
-                                          const SourceManager &SM,
-                                          const LangOptions &LangOpts);
+                                      const SourceManager &SM,
+                                      const LangOptions &LangOpts,
+                                      SourceLocation *MacroEnd = 0);
 
   /// \brief Retrieve the name of the immediate macro expansion.
   ///