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re PR c++/57658 (ICE in tsubst_copy, at cp/pt.c:12213)

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PR c++/57658
	* semantics.c (finish_id_expression): Return the id for an
	unevaluated outer variable.

From-SVN: r200845
This commit is contained in:
Jason Merrill 2013-07-09 14:50:28 -04:00 committed by Jason Merrill
parent d9fac9dd59
commit ce9011004c
3 changed files with 30 additions and 7 deletions
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4
gcc/cp/ChangeLog
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@ -1,5 +1,9 @@
2013-07-09 Jason Merrill <jason@redhat.com>
PR c++/57658
* semantics.c (finish_id_expression): Return the id for an
unevaluated outer variable.
PR c++/57526
* semantics.c (lambda_capture_field_type): Build a DECLTYPE_TYPE
if the variable type uses 'auto'.

14
gcc/cp/semantics.c
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@ -3056,15 +3056,15 @@ finish_id_expression (tree id_expression,
/* Disallow uses of local variables from containing functions, except
within lambda-expressions. */
if (!outer_var_p (decl)
/* It's not a use (3.2) if we're in an unevaluated context. */
|| cp_unevaluated_operand)
/* OK. */;
else if (TREE_STATIC (decl))
if (!outer_var_p (decl))
/* OK */;
else if (TREE_STATIC (decl)
/* It's not a use (3.2) if we're in an unevaluated context. */
|| cp_unevaluated_operand)
{
if (processing_template_decl)
/* For a use of an outer static var, return the identifier so
that we'll look it up again in the instantiation. */
/* For a use of an outer static/unevaluated var, return the id
so that we'll look it up again in the instantiation. */
return id_expression;
}
else

19
gcc/testsuite/g++.dg/cpp0x/lambda/lambda-template12.C Normal file
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@ -0,0 +1,19 @@
// PR c++/57568
// { dg-require-effective-target c++11 }
template < class T >
struct remove_reference
{ typedef int type; };
template < class T >
class X
{
enum Q { };
bool f ()
{
Q a;
[&a]{
typename remove_reference < decltype (a) >::type t;
};
}
};
template class X< int >;