56 lines
1.8 KiB
Rust
56 lines
1.8 KiB
Rust
// aux-build:crate_a1.rs
|
|
// aux-build:crate_a2.rs
|
|
|
|
// Issue 22750
|
|
// This tests the extra help message reported when a trait bound
|
|
// is not met but the struct implements a trait with the same path.
|
|
|
|
fn main() {
|
|
let foo = {
|
|
extern crate crate_a2 as a;
|
|
a::Foo
|
|
};
|
|
|
|
let implements_no_traits = {
|
|
extern crate crate_a2 as a;
|
|
a::DoesNotImplementTrait
|
|
};
|
|
|
|
let other_variant_implements_mismatched_trait = {
|
|
extern crate crate_a2 as a;
|
|
a::ImplementsWrongTraitConditionally { _marker: std::marker::PhantomData::<isize> }
|
|
};
|
|
|
|
let other_variant_implements_correct_trait = {
|
|
extern crate crate_a1 as a;
|
|
a::ImplementsTraitForUsize { _marker: std::marker::PhantomData::<isize> }
|
|
};
|
|
|
|
{
|
|
extern crate crate_a1 as a;
|
|
a::try_foo(foo);
|
|
//~^ ERROR E0277
|
|
//~| trait impl with same name found
|
|
//~| perhaps two different versions of crate `crate_a2`
|
|
|
|
// We don't want to see the "version mismatch" help message here
|
|
// because `implements_no_traits` has no impl for `Foo`
|
|
a::try_foo(implements_no_traits);
|
|
//~^ ERROR E0277
|
|
|
|
// We don't want to see the "version mismatch" help message here
|
|
// because `other_variant_implements_mismatched_trait`
|
|
// does not have an impl for its `<isize>` variant,
|
|
// only for its `<usize>` variant.
|
|
a::try_foo(other_variant_implements_mismatched_trait);
|
|
//~^ ERROR E0277
|
|
|
|
// We don't want to see the "version mismatch" help message here
|
|
// because `ImplementsTraitForUsize` only has
|
|
// impls for the correct trait where the path is not misleading.
|
|
a::try_foo(other_variant_implements_correct_trait);
|
|
//~^ ERROR E0277
|
|
//~| the trait `main::a::Bar` is implemented for `ImplementsTraitForUsize<usize>`
|
|
}
|
|
}
|