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|
//@ run-pass
//@ check-run-results
#![feature(supertrait_item_shadowing)]
#![warn(supertrait_item_shadowing_usage)]
#![warn(supertrait_item_shadowing_definition)]
#![allow(dead_code)]
trait A {
fn hello(&self) {
println!("A");
}
}
impl<T> A for T {}
trait B {
fn hello(&self) {
println!("B");
}
}
impl<T> B for T {}
trait C: A + B {
fn hello(&self) {
//~^ WARN trait item `hello` from `C` shadows identically named item
println!("C");
}
}
impl<T> C for T {}
// `D` extends `C` which extends `B` and `A`
trait D: C {
fn hello(&self) {
//~^ WARN trait item `hello` from `D` shadows identically named item
println!("D");
}
}
impl<T> D for T {}
fn main() {
().hello();
//~^ WARN trait item `hello` from `D` shadows identically named item from supertrait
}
|
