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Diffstat (limited to 'crates/hir-ty/src/tests/coercion.rs')
| -rw-r--r-- | crates/hir-ty/src/tests/coercion.rs | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/crates/hir-ty/src/tests/coercion.rs b/crates/hir-ty/src/tests/coercion.rs index 7992f1feee..a5978d905b 100644 --- a/crates/hir-ty/src/tests/coercion.rs +++ b/crates/hir-ty/src/tests/coercion.rs @@ -536,7 +536,7 @@ fn test() { #[test] fn coerce_unsize_generic() { - check( + check_no_mismatches( r#" //- minicore: coerce_unsized struct Foo<T> { t: T }; @@ -544,9 +544,7 @@ struct Bar<T>(Foo<T>); fn test() { let _: &Foo<[usize]> = &Foo { t: [1, 2, 3] }; - //^^^^^^^^^^^^^^^^^^^^^ expected &'? Foo<[usize]>, got &'? Foo<[i32; 3]> let _: &Bar<[usize]> = &Bar(Foo { t: [1, 2, 3] }); - //^^^^^^^^^^^^^^^^^^^^^^^^^^ expected &'? Bar<[usize]>, got &'? Bar<[i32; 3]> } "#, ); @@ -958,3 +956,24 @@ fn f() { "#, ); } + +#[test] +fn coerce_nested_unsized_struct() { + check_types( + r#" +//- minicore: fn, coerce_unsized, dispatch_from_dyn, sized +use core::marker::Unsize; + +struct Foo<T: ?Sized>(T); + +fn need(_: &Foo<dyn Fn(i32) -> i32>) { +} + +fn test() { + let callback = |x| x; + //^ i32 + need(&Foo(callback)); +} +"#, + ) +} |