Improve source-location information for implicitly-generated member call expressions

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86989 91177308-0d34-0410-b5e6-96231b3b80d8

include/clang/AST/ExprCXX.h

@@ -95,6 +95,8 @@ public:
   /// operation would return "x".
   Expr *getImplicitObjectArgument();
 
+  virtual SourceRange getSourceRange() const;
+  
   static bool classof(const Stmt *T) {
     return T->getStmtClass() == CXXMemberCallExprClass;
   }

lib/AST/ExprCXX.cpp

@@ -323,6 +323,14 @@ Expr *CXXMemberCallExpr::getImplicitObjectArgument() {
   return 0;
 }
 
+SourceRange CXXMemberCallExpr::getSourceRange() const {
+  SourceLocation LocStart = getCallee()->getLocStart();
+  if (LocStart.isInvalid() && getNumArgs() > 0)
+    LocStart = getArg(0)->getLocStart();
+  return SourceRange(LocStart, getRParenLoc());
+}
+
+
 //===----------------------------------------------------------------------===//
 //  Named casts
 //===----------------------------------------------------------------------===//

lib/Sema/SemaExprCXX.cpp

@@ -2120,7 +2120,7 @@ CXXMemberCallExpr *Sema::BuildCXXMemberCallExpr(Expr *Exp,
     CXXMemberCallExpr *CE =
       new (Context) CXXMemberCallExpr(Context, ME, 0, 0, 
                                       ResultType,
-                                      SourceLocation());
+                                      Exp->getLocEnd());
   return CE;
 }