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