45 lines
825 B
Rust
45 lines
825 B
Rust
// compile-flags: -Z chalk
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trait Foo: Sized { }
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trait Bar {
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type Item: Foo;
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}
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impl Foo for i32 { }
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impl Foo for str { }
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//~^ ERROR the size for values of type `str` cannot be known at compilation time
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// Implicit `T: Sized` bound.
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impl<T> Foo for Option<T> { }
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impl Bar for () {
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type Item = i32;
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}
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impl<T> Bar for Option<T> {
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type Item = Option<T>;
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}
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// FIXME(chalk): the ordering of these two errors differs between CI and local
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// We need to figure out why its non-deterministic
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/*
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impl Bar for f32 {
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//^ ERROR the trait bound `f32: Foo` is not satisfied
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type Item = f32;
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//^ ERROR the trait bound `f32: Foo` is not satisfied
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}
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*/
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trait Baz<U: ?Sized> where U: Foo { }
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impl Baz<i32> for i32 { }
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impl Baz<f32> for f32 { }
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//~^ ERROR the trait bound `f32: Foo` is not satisfied
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fn main() {
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}
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