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