tree
lambda_return_type (tree expr)
{
if (expr == NULL_TREE)
return void_type_node;
if (type_unknown_p (expr)
|| BRACE_ENCLOSED_INITIALIZER_P (expr))
{
cxx_incomplete_type_error (expr, TREE_TYPE (expr));
return void_type_node;
}
gcc_checking_assert (!type_dependent_expression_p (expr));
return cv_unqualified (type_decays_to (unlowered_expr_type (expr)));
}
tree
lambda_capture_field_type (tree expr, bool explicit_init_p)
{
tree type;
if (explicit_init_p)
{
type = make_auto ();
type = do_auto_deduction (type, expr, type);
}
else
type = non_reference (unlowered_expr_type (expr));
if (type_dependent_expression_p (expr)
&& !is_this_parameter (tree_strip_nop_conversions (expr)))
{
type = cxx_make_type (DECLTYPE_TYPE);
DECLTYPE_TYPE_EXPR (type) = expr;
DECLTYPE_FOR_LAMBDA_CAPTURE (type) = true;
DECLTYPE_FOR_INIT_CAPTURE (type) = explicit_init_p;
SET_TYPE_STRUCTURAL_EQUALITY (type);
}
return type;
}
tree
lambda_capture_field_type (tree expr, bool explicit_init_p)
{
tree type;
if (explicit_init_p)
{
type = make_auto ();
type = do_auto_deduction (type, expr, type);
}
else
type = non_reference (unlowered_expr_type (expr));
if (!type || WILDCARD_TYPE_P (type) || type_uses_auto (type)
|| DECL_PACK_P (expr))
{
type = cxx_make_type (DECLTYPE_TYPE);
DECLTYPE_TYPE_EXPR (type) = expr;
DECLTYPE_FOR_LAMBDA_CAPTURE (type) = true;
DECLTYPE_FOR_INIT_CAPTURE (type) = explicit_init_p;
SET_TYPE_STRUCTURAL_EQUALITY (type);
}
return type;
}
