[cfe-commits] r151443 - in /cfe/trunk: lib/Sema/SemaExprMember.cpp test/CXX/expr/expr.prim/expr.prim.general/p12-0x.cpp
Richard Smith
richard-llvm at metafoo.co.uk
Sat Feb 25 02:04:08 PST 2012
Author: rsmith
Date: Sat Feb 25 04:04:07 2012
New Revision: 151443
URL: http://llvm.org/viewvc/llvm-project?rev=151443&view=rev
Log:
PR11956: C++11's special exception for accessing non-static data members from
unevaluated operands applies within member functions, too.
Modified:
cfe/trunk/lib/Sema/SemaExprMember.cpp
cfe/trunk/test/CXX/expr/expr.prim/expr.prim.general/p12-0x.cpp
Modified: cfe/trunk/lib/Sema/SemaExprMember.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaExprMember.cpp?rev=151443&r1=151442&r2=151443&view=diff
==============================================================================
--- cfe/trunk/lib/Sema/SemaExprMember.cpp (original)
+++ cfe/trunk/lib/Sema/SemaExprMember.cpp Sat Feb 25 04:04:07 2012
@@ -138,25 +138,25 @@
if (Classes.empty())
return IMA_Static;
+ if (SemaRef.getLangOptions().CPlusPlus0x && isField) {
+ // C++11 [expr.prim.general]p12:
+ // An id-expression that denotes a non-static data member or non-static
+ // member function of a class can only be used:
+ // (...)
+ // - if that id-expression denotes a non-static data member and it
+ // appears in an unevaluated operand.
+ const Sema::ExpressionEvaluationContextRecord& record
+ = SemaRef.ExprEvalContexts.back();
+ if (record.Context == Sema::Unevaluated)
+ return IMA_Field_Uneval_Context;
+ }
+
// If the current context is not an instance method, it can't be
// an implicit member reference.
if (isStaticContext) {
if (hasNonInstance)
- return IMA_Mixed_StaticContext;
-
- if (SemaRef.getLangOptions().CPlusPlus0x && isField) {
- // C++11 [expr.prim.general]p12:
- // An id-expression that denotes a non-static data member or non-static
- // member function of a class can only be used:
- // (...)
- // - if that id-expression denotes a non-static data member and it
- // appears in an unevaluated operand.
- const Sema::ExpressionEvaluationContextRecord& record
- = SemaRef.ExprEvalContexts.back();
- if (record.Context == Sema::Unevaluated)
- return IMA_Field_Uneval_Context;
- }
-
+ return IMA_Mixed_StaticContext;
+
return IMA_Error_StaticContext;
}
Modified: cfe/trunk/test/CXX/expr/expr.prim/expr.prim.general/p12-0x.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CXX/expr/expr.prim/expr.prim.general/p12-0x.cpp?rev=151443&r1=151442&r2=151443&view=diff
==============================================================================
--- cfe/trunk/test/CXX/expr/expr.prim/expr.prim.general/p12-0x.cpp (original)
+++ cfe/trunk/test/CXX/expr/expr.prim/expr.prim.general/p12-0x.cpp Sat Feb 25 04:04:07 2012
@@ -27,4 +27,12 @@
class Poly { virtual ~Poly(); };
const std::type_info& k = typeid(S::m);
const std::type_info& m = typeid(*(Poly*)S::m); // expected-error {{invalid use of nonstatic data member}}
-const std::type_info& n = typeid(*(Poly*)(0*sizeof S::m));
\ No newline at end of file
+const std::type_info& n = typeid(*(Poly*)(0*sizeof S::m));
+
+namespace PR11956 {
+ struct X { char a; };
+ struct Y { int f() { return sizeof(X::a); } }; // ok
+
+ struct A { enum E {} E; };
+ struct B { int f() { return sizeof(A::E); } }; // ok
+}
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