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authorJason Merrill <jason@redhat.com>2016-01-22 15:36:30 -0500
committerJason Merrill <jason@gcc.gnu.org>2016-01-22 15:36:30 -0500
commit130ee9a9fc802926d2fe2701e041c98a6fb0f981 (patch)
tree5b05d650ef9ad80cfc1f41d5f5d143983cf0383d /gcc
parent44b6ab2bf9597eb5f02e549d0236b942c007a1b0 (diff)
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re PR c++/69392 (G++ can't capture 'this' pointer to templated type using init-capture)
PR c++/69392 * lambda.c (lambda_capture_field_type): Handle 'this' specially for init-capture, too. From-SVN: r232746
Diffstat (limited to 'gcc')
-rw-r--r--gcc/cp/ChangeLog4
-rw-r--r--gcc/cp/lambda.c18
-rw-r--r--gcc/testsuite/g++.dg/cpp1y/lambda-init14.C19
3 files changed, 32 insertions, 9 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index af5c907..05ca52a 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,5 +1,9 @@
2016-01-21 Jason Merrill <jason@redhat.com>
+ PR c++/69392
+ * lambda.c (lambda_capture_field_type): Handle 'this' specially
+ for init-capture, too.
+
PR c++/65687
* decl.c (type_is_deprecated): Don't look into a typedef.
diff --git a/gcc/cp/lambda.c b/gcc/cp/lambda.c
index 3b0ea18..93b192c 100644
--- a/gcc/cp/lambda.c
+++ b/gcc/cp/lambda.c
@@ -207,15 +207,8 @@ 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)))
+ bool is_this = is_this_parameter (tree_strip_nop_conversions (expr));
+ if (!is_this && type_dependent_expression_p (expr))
{
type = cxx_make_type (DECLTYPE_TYPE);
DECLTYPE_TYPE_EXPR (type) = expr;
@@ -223,6 +216,13 @@ lambda_capture_field_type (tree expr, bool explicit_init_p)
DECLTYPE_FOR_INIT_CAPTURE (type) = explicit_init_p;
SET_TYPE_STRUCTURAL_EQUALITY (type);
}
+ else if (!is_this && explicit_init_p)
+ {
+ type = make_auto ();
+ type = do_auto_deduction (type, expr, type);
+ }
+ else
+ type = non_reference (unlowered_expr_type (expr));
return type;
}
diff --git a/gcc/testsuite/g++.dg/cpp1y/lambda-init14.C b/gcc/testsuite/g++.dg/cpp1y/lambda-init14.C
new file mode 100644
index 0000000..f7fffc5
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp1y/lambda-init14.C
@@ -0,0 +1,19 @@
+// PR c++/69392
+// { dg-do compile { target c++14 } }
+
+template <typename T>
+class Foo {
+ public:
+ void foo(void) {}
+ auto getCallableFoo(void) {
+ return
+ [ptr = this]() { ptr->foo(); };
+ }
+};
+
+int main()
+{
+ Foo<int> f;
+ auto callable = f.getCallableFoo();
+ callable();
+}