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authorLukas Wirth <[email protected]>2021-03-30 20:43:23 +0100
committerLukas Wirth <[email protected]>2021-03-30 22:23:00 +0100
commit6f0575f08adca0c8a8f38a301913a1cfe636eb94 (patch)
treece24189f7b8c3f71726edb5cb95d05c6ae927d80 /crates/hir_ty/src/tests
parent0b68e03bf56c00f63fcc65e7879cc64c6d5c4f30 (diff)
Fix generic arguments being incorrectly offset in qualified trait casts
Diffstat (limited to 'crates/hir_ty/src/tests')
-rw-r--r--crates/hir_ty/src/tests/traits.rs43
1 files changed, 43 insertions, 0 deletions
diff --git a/crates/hir_ty/src/tests/traits.rs b/crates/hir_ty/src/tests/traits.rs
index 2ba97f814..65b71fdfa 100644
--- a/crates/hir_ty/src/tests/traits.rs
+++ b/crates/hir_ty/src/tests/traits.rs
@@ -3370,3 +3370,46 @@ fn test() {
3370 "#]], 3370 "#]],
3371 ) 3371 )
3372} 3372}
3373
3374#[test]
3375fn qualified_path_as_qualified_trait() {
3376 check_infer(
3377 r#"
3378mod foo {
3379
3380 pub trait Foo {
3381 type Target;
3382 }
3383 pub trait Bar {
3384 type Output;
3385 fn boo() -> Self::Output {
3386 loop {}
3387 }
3388 }
3389}
3390
3391struct F;
3392impl foo::Foo for F {
3393 type Target = ();
3394}
3395impl foo::Bar for F {
3396 type Output = <F as foo::Foo>::Target;
3397}
3398
3399fn foo() {
3400 use foo::Bar;
3401 let x = <F as Bar>::boo();
3402}
3403
3404 "#,
3405 expect![[r#"
3406 132..163 '{ ... }': Bar::Output<Self>
3407 146..153 'loop {}': !
3408 151..153 '{}': ()
3409 306..358 '{ ...o(); }': ()
3410 334..335 'x': ()
3411 338..353 '<F as Bar>::boo': fn boo<F>() -> <F as Bar>::Output
3412 338..355 '<F as ...:boo()': ()
3413 "#]],
3414 );
3415}