Constify argument of Preprocessor::getMacroInfoHistory and propagate to

callers, removing unneeded const_cast


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172372 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 3 insertions, 3 deletions

diff --git a/include/clang/Lex/Preprocessor.h b/include/clang/Lex/Preprocessor.h
index 8457cc5ad6..1789e81b0a 100644
--- a/include/clang/Lex/Preprocessor.h
+++ b/include/clang/Lex/Preprocessor.h
@@ -307,7 +307,7 @@ class Preprocessor : public RefCountedBase<Preprocessor> {
   /// 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;
+  llvm::DenseMap<const IdentifierInfo*, MacroInfo*> Macros;
   friend class ASTReader;
   
   /// \brief Macros that we want to warn because they are not used at the end
@@ -520,7 +520,7 @@ public:
   /// representing the most recent macro definition. One can iterate over all
   /// previous macro definitions from it. This method should only be called for
   /// identifiers that hadMacroDefinition().
-  MacroInfo *getMacroInfoHistory(IdentifierInfo *II) const;
+  MacroInfo *getMacroInfoHistory(const IdentifierInfo *II) const;
 
   /// \brief Specify a macro for this identifier.
   void setMacroInfo(IdentifierInfo *II, MacroInfo *MI);
@@ -537,7 +537,7 @@ public:
   /// history table. Currently defined macros have
   /// IdentifierInfo::hasMacroDefinition() set and an empty
   /// MacroInfo::getUndefLoc() at the head of the list.
-  typedef llvm::DenseMap<IdentifierInfo*,
+  typedef llvm::DenseMap<const IdentifierInfo *,
                          MacroInfo*>::const_iterator macro_iterator;
   macro_iterator macro_begin(bool IncludeExternalMacros = true) const;
   macro_iterator macro_end(bool IncludeExternalMacros = true) const;