compiler: handle aliases to pointer types with interfaces
Test case is https://golang.org/cl/241997.
Change-Id: Ie30d682e016f45cc29edb4c992eaab40d3339314
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/241998
Reviewed-by: Cherry Zhang <cherryyz@google.com>
diff --git a/go/types.cc b/go/types.cc
index 3459a33..7f65b4a 100644
--- a/go/types.cc
+++ b/go/types.cc
@@ -9208,6 +9208,7 @@
if (this->all_methods_ == NULL)
return true;
+ t = t->unalias();
bool is_pointer = false;
const Named_type* nt = t->named_type();
const Struct_type* st = t->struct_type();
@@ -9220,6 +9221,7 @@
{
// If T is a pointer to a named type, then we need to look at
// the type to which it points.
+ pt = pt->unalias();
is_pointer = true;
nt = pt->named_type();
st = pt->struct_type();
@@ -10408,19 +10410,24 @@
return Expression::make_error(this->location_);
if (this->is_alias_)
{
- if (this->type_->named_type() != NULL)
+ Type* t = this->type_;
+ if (!is_pointer && t->points_to() != NULL)
+ {
+ t = t->points_to();
+ is_pointer = true;
+ }
+ if (t->named_type() != NULL)
{
if (this->seen_alias_)
return Expression::make_error(this->location_);
this->seen_alias_ = true;
- Named_type* nt = this->type_->named_type();
+ Named_type* nt = t->named_type();
Expression* ret = nt->interface_method_table(interface, is_pointer);
this->seen_alias_ = false;
return ret;
}
- if (this->type_->struct_type() != NULL)
- return this->type_->struct_type()->interface_method_table(interface,
- is_pointer);
+ if (t->struct_type() != NULL)
+ return t->struct_type()->interface_method_table(interface, is_pointer);
go_unreachable();
}
return Type::interface_method_table(this, interface, is_pointer,
