mirror of https://github.com/rust-lang/rust
73 lines
1.2 KiB
Rust
73 lines
1.2 KiB
Rust
#![feature(specialization)]
|
|
|
|
pub trait Foo {
|
|
fn foo(&self) -> &'static str;
|
|
}
|
|
|
|
impl<T> Foo for T {
|
|
default fn foo(&self) -> &'static str {
|
|
"generic"
|
|
}
|
|
}
|
|
|
|
impl<T: Clone> Foo for T {
|
|
default fn foo(&self) -> &'static str {
|
|
"generic Clone"
|
|
}
|
|
}
|
|
|
|
impl<T, U> Foo for (T, U) where T: Clone, U: Clone {
|
|
default fn foo(&self) -> &'static str {
|
|
"generic pair"
|
|
}
|
|
}
|
|
|
|
impl<T: Clone> Foo for (T, T) {
|
|
default fn foo(&self) -> &'static str {
|
|
"generic uniform pair"
|
|
}
|
|
}
|
|
|
|
impl Foo for (u8, u32) {
|
|
default fn foo(&self) -> &'static str {
|
|
"(u8, u32)"
|
|
}
|
|
}
|
|
|
|
impl Foo for (u8, u8) {
|
|
default fn foo(&self) -> &'static str {
|
|
"(u8, u8)"
|
|
}
|
|
}
|
|
|
|
impl<T: Clone> Foo for Vec<T> {
|
|
default fn foo(&self) -> &'static str {
|
|
"generic Vec"
|
|
}
|
|
}
|
|
|
|
impl Foo for Vec<i32> {
|
|
fn foo(&self) -> &'static str {
|
|
"Vec<i32>"
|
|
}
|
|
}
|
|
|
|
impl Foo for String {
|
|
fn foo(&self) -> &'static str {
|
|
"String"
|
|
}
|
|
}
|
|
|
|
impl Foo for i32 {
|
|
fn foo(&self) -> &'static str {
|
|
"i32"
|
|
}
|
|
}
|
|
|
|
pub trait MyMarker {}
|
|
impl<T: Clone + MyMarker> Foo for T {
|
|
default fn foo(&self) -> &'static str {
|
|
"generic Clone + MyMarker"
|
|
}
|
|
}
|