From 7cbd8fb6b0c1bba7fdcf7a8f86c1b15f2837e322 Mon Sep 17 00:00:00 2001
From: Anders Carlsson <andersca@mac.com>
Date: Sun, 22 Mar 2009 01:52:17 +0000
Subject: Keep track of whether a class is abstract or not. This is currently
 only used for the __is_abstract type trait.

llvm-svn: 67461
---
 clang/lib/AST/ExprCXX.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'clang/lib/AST/ExprCXX.cpp')

diff --git a/clang/lib/AST/ExprCXX.cpp b/clang/lib/AST/ExprCXX.cpp
index 53be84b20d2..5a9de19254d 100644
--- a/clang/lib/AST/ExprCXX.cpp
+++ b/clang/lib/AST/ExprCXX.cpp
@@ -214,6 +214,10 @@ bool UnaryTypeTraitExpr::EvaluateTrait() const {
       return cast<CXXRecordDecl>(Record->getDecl())->isPolymorphic();
     }
     return false;
+  case UTT_IsAbstract:
+    if (const RecordType *RT = QueriedType->getAsRecordType())
+      return cast<CXXRecordDecl>(RT->getDecl())->isAbstract();
+    return false;
   }
 }
 
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