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-rw-r--r--src/test/ui/specialization/defaultimpl/specialization-trait-item-not-implemented-rpass.rs34
1 files changed, 34 insertions, 0 deletions
diff --git a/src/test/ui/specialization/defaultimpl/specialization-trait-item-not-implemented-rpass.rs b/src/test/ui/specialization/defaultimpl/specialization-trait-item-not-implemented-rpass.rs
new file mode 100644
index 000000000..89fef5b5e
--- /dev/null
+++ b/src/test/ui/specialization/defaultimpl/specialization-trait-item-not-implemented-rpass.rs
@@ -0,0 +1,34 @@
+// run-pass
+
+// Tests that we can combine a default impl that supplies one method with a
+// full impl that supplies the other, and they can invoke one another.
+
+#![feature(specialization)] //~ WARN the feature `specialization` is incomplete
+
+trait Foo {
+ fn foo_one(&self) -> &'static str;
+ fn foo_two(&self) -> &'static str;
+ fn foo_three(&self) -> &'static str;
+}
+
+struct MyStruct;
+
+default impl<T> Foo for T {
+ fn foo_one(&self) -> &'static str {
+ self.foo_three()
+ }
+}
+
+impl Foo for MyStruct {
+ fn foo_two(&self) -> &'static str {
+ self.foo_one()
+ }
+
+ fn foo_three(&self) -> &'static str {
+ "generic"
+ }
+}
+
+fn main() {
+ assert!(MyStruct.foo_two() == "generic");
+}