Add wchar_t type to ASTContext. Will be needed for wide strings, since

they are of type wchar_t[].



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47004 91177308-0d34-0410-b5e6-96231b3b80d8

AST/ASTContext.cpp

@@ -839,6 +839,15 @@ QualType ASTContext::getSizeType() const {
   return UnsignedLongTy; 
 }
 
+/// getWcharType - Return the unique type for "wchar_t" (C99 7.17), the
+/// width of characters in wide strings, The value is target dependent and 
+/// needs to agree with the definition in <stddef.h>.
+QualType ASTContext::getWcharType() const {
+  // On Darwin, wchar_t is defined as a "int". 
+  // FIXME: should derive from "Target".
+  return IntTy; 
+}
+
 /// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?)
 /// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9).
 QualType ASTContext::getPointerDiffType() const {

include/clang/AST/ASTContext.h

@@ -195,6 +195,10 @@ public:
   /// getSizeType - Return the unique type for "size_t" (C99 7.17), defined
   /// in <stddef.h>. The sizeof operator requires this (C99 6.5.3.4p4).
   QualType getSizeType() const;
+
+  /// getWcharType - Return the unique type for "wchar_t" (C99 7.17), defined
+  /// in <stddef.h>. Wide strings require this (C99 6.4.5p5).
+  QualType getWcharType() const;
   
   /// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?)
   /// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9).