mirror of https://github.com/rust-lang/rust
55 lines
1.5 KiB
Rust
55 lines
1.5 KiB
Rust
trait A {
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type Type; //~ NOTE ambiguous `Type` from `A`
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const CONST: usize = 1; //~ NOTE candidate #1
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fn foo(&self); //~ NOTE candidate #1
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}
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trait B {
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type Type; //~ NOTE ambiguous `Type` from `B`
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const CONST: usize; //~ NOTE candidate #2
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fn foo(&self); //~ NOTE candidate #2
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}
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trait C: A + B {}
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fn a<T: C>(t: T) {
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t.foo(); //~ ERROR multiple applicable items in scope
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//~^ NOTE multiple `foo` found
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//~| HELP disambiguate the method
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//~| HELP disambiguate the method
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let _ = T::CONST; //~ ERROR multiple applicable items in scope
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//~^ NOTE multiple `CONST` found
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//~| HELP use fully-qualified syntax
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let _: T::Type; //~ ERROR ambiguous associated type
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//~^ NOTE ambiguous associated type `Type`
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//~| HELP use fully-qualified syntax
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//~| HELP use fully-qualified syntax
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}
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#[derive(Debug)]
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struct S;
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impl<T: std::fmt::Debug> A for T {
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type Type = ();
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const CONST: usize = 1; //~ NOTE candidate #1
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fn foo(&self) {} //~ NOTE candidate #1
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}
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impl<T: std::fmt::Debug> B for T {
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type Type = ();
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const CONST: usize = 1; //~ NOTE candidate #2
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fn foo(&self) {} //~ NOTE candidate #2
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}
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fn main() {
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let s = S;
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S::foo(&s); //~ ERROR multiple applicable items in scope
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//~^ NOTE multiple `foo` found
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//~| HELP use fully-qualified syntax
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let _ = S::CONST; //~ ERROR multiple applicable items in scope
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//~^ NOTE multiple `CONST` found
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//~| HELP use fully-qualified syntax
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let _: S::Type; //~ ERROR ambiguous associated type
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//~^ HELP use fully-qualified syntax
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}
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