Add support for C++ default arguments, and rework Parse-Sema

interaction for function parameters, fixing PR2046.

Patch by Doug Gregor!

llvm-svn: 49369

1 files changed, 8 insertions, 0 deletions

diff --git a/clang/lib/AST/ExprCXX.cpp b/clang/lib/AST/ExprCXX.cpp
index 3bc32e75d87..03faf8b8b51 100644
--- a/clang/lib/AST/ExprCXX.cpp
+++ b/clang/lib/AST/ExprCXX.cpp
@@ -45,3 +45,11 @@ Stmt::child_iterator CXXThrowExpr::child_end() {
     return reinterpret_cast<Stmt**>(&Op)+0;
   return reinterpret_cast<Stmt**>(&Op)+1;
 }
+
+// CXXDefaultArgExpr
+Stmt::child_iterator CXXDefaultArgExpr::child_begin() {
+  return reinterpret_cast<Stmt**>(Param->getDefaultArg());
+}
+Stmt::child_iterator CXXDefaultArgExpr::child_end() {
+  return reinterpret_cast<Stmt**>(Param->getDefaultArg())+1;
+}