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Diffstat (limited to 'tests/ui/specialization/defaultimpl/specialization-trait-item-not-implemented-rpass.rs')
-rw-r--r-- | tests/ui/specialization/defaultimpl/specialization-trait-item-not-implemented-rpass.rs | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/tests/ui/specialization/defaultimpl/specialization-trait-item-not-implemented-rpass.rs b/tests/ui/specialization/defaultimpl/specialization-trait-item-not-implemented-rpass.rs new file mode 100644 index 000000000..89fef5b5e --- /dev/null +++ b/tests/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"); +} |