rust/src/test/run-pass/impl-variance.rs

12 lines
234 B
Rust

impl extensions<T> for ~[const T] {
fn foo() -> uint { vec::len(self) }
}
fn main() {
let v = ~[const 0];
assert v.foo() == 1u;
let v = ~[0];
assert v.foo() == 1u;
let v = ~[mut 0];
assert v.foo() == 1u;
}