[cfe-commits] r116817 - in /cfe/trunk: lib/Sema/SemaExpr.cpp test/SemaTemplate/default-expr-arguments.cpp
Douglas Gregor
dgregor at apple.com
Tue Oct 19 10:17:35 PDT 2010
Author: dgregor
Date: Tue Oct 19 12:17:35 2010
New Revision: 116817
URL: http://llvm.org/viewvc/llvm-project?rev=116817&view=rev
Log:
When marking declarations referenced within an expression (e.g.,
within a default argument), recurse into default arguments. Fixes
PR8401, a regression I introduced in r113700 while refactoring our
handling of "used" declarations in default arguments.
Modified:
cfe/trunk/lib/Sema/SemaExpr.cpp
cfe/trunk/test/SemaTemplate/default-expr-arguments.cpp
Modified: cfe/trunk/lib/Sema/SemaExpr.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaExpr.cpp?rev=116817&r1=116816&r2=116817&view=diff
==============================================================================
--- cfe/trunk/lib/Sema/SemaExpr.cpp (original)
+++ cfe/trunk/lib/Sema/SemaExpr.cpp Tue Oct 19 12:17:35 2010
@@ -8019,6 +8019,10 @@
void VisitBlockDeclRefExpr(BlockDeclRefExpr *E) {
S.MarkDeclarationReferenced(E->getLocation(), E->getDecl());
}
+
+ void VisitCXXDefaultArgExpr(CXXDefaultArgExpr *E) {
+ Visit(E->getExpr());
+ }
};
}
Modified: cfe/trunk/test/SemaTemplate/default-expr-arguments.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/SemaTemplate/default-expr-arguments.cpp?rev=116817&r1=116816&r2=116817&view=diff
==============================================================================
--- cfe/trunk/test/SemaTemplate/default-expr-arguments.cpp (original)
+++ cfe/trunk/test/SemaTemplate/default-expr-arguments.cpp Tue Oct 19 12:17:35 2010
@@ -274,3 +274,21 @@
x->g();
}
}
+
+namespace PR8401 {
+ template<typename T>
+ struct A {
+ A() { T* x = 1; } // expected-error{{cannot initialize a variable of type 'int *' with an rvalue of type 'int'}}
+ };
+
+ template<typename T>
+ struct B {
+ B(const A<T>& a = A<T>()); // expected-note{{in instantiation of}}
+ };
+
+ void f(B<int> b = B<int>());
+
+ void g() {
+ f();
+ }
+}
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