diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs index 5f89f7dedc2cc..487cc7e55cd9e 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs @@ -882,7 +882,8 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let ty = self.lowerer().lower_ty(hir_ty); debug!(?ty, "return type (lowered)"); debug!(?expected, "expected type"); - let bound_vars = self.tcx.late_bound_vars(hir_ty.hir_id.owner.into()); + let bound_vars = + self.tcx.late_bound_vars(self.tcx.local_def_id_to_hir_id(fn_id)); let ty = Binder::bind_with_vars(ty, bound_vars); let ty = self.normalize(hir_ty.span, ty); let ty = self.tcx.instantiate_bound_regions_with_erased(ty); diff --git a/tests/crashes/125655.rs b/tests/crashes/125655.rs deleted file mode 100644 index fbf92ca22be7e..0000000000000 --- a/tests/crashes/125655.rs +++ /dev/null @@ -1,8 +0,0 @@ -//@ known-bug: rust-lang/rust#125655 - -fn main() { - static foo: dyn Fn() -> u32 = || -> u32 { - ... - 0 - }; -} diff --git a/tests/ui/closures/binder/closure-return-type-mismatch.rs b/tests/ui/closures/binder/closure-return-type-mismatch.rs new file mode 100644 index 0000000000000..398a4c43ee2eb --- /dev/null +++ b/tests/ui/closures/binder/closure-return-type-mismatch.rs @@ -0,0 +1,15 @@ +// We used to bind the closure return type `&'a ()` with the late-bound vars of +// the owner (here `main` & `env` resp.) instead of the ones of the enclosing +// function-like / closure inside diagnostic code which was incorrect. + +#![feature(closure_lifetime_binder)] + +// issue: rust-lang/rust#130391 +fn main() { + let _ = for<'a> |x: &'a u8| -> &'a () { x }; //~ ERROR mismatched types +} + +// issue: rust-lang/rust#130663 +fn env<'r>() { + let _ = for<'a> |x: &'a u8| -> &'a () { x }; //~ ERROR mismatched types +} diff --git a/tests/ui/closures/binder/closure-return-type-mismatch.stderr b/tests/ui/closures/binder/closure-return-type-mismatch.stderr new file mode 100644 index 0000000000000..67045654f995b --- /dev/null +++ b/tests/ui/closures/binder/closure-return-type-mismatch.stderr @@ -0,0 +1,25 @@ +error[E0308]: mismatched types + --> $DIR/closure-return-type-mismatch.rs:9:45 + | +LL | let _ = for<'a> |x: &'a u8| -> &'a () { x }; + | ------ ^ expected `&()`, found `&u8` + | | + | expected `&'a ()` because of return type + | + = note: expected reference `&'a ()` + found reference `&'a u8` + +error[E0308]: mismatched types + --> $DIR/closure-return-type-mismatch.rs:14:45 + | +LL | let _ = for<'a> |x: &'a u8| -> &'a () { x }; + | ------ ^ expected `&()`, found `&u8` + | | + | expected `&'a ()` because of return type + | + = note: expected reference `&'a ()` + found reference `&'a u8` + +error: aborting due to 2 previous errors + +For more information about this error, try `rustc --explain E0308`. diff --git a/tests/ui/closures/closure-return-type-mismatch.rs b/tests/ui/closures/closure-return-type-mismatch.rs index 1631bb303e54e..e5cda1659de40 100644 --- a/tests/ui/closures/closure-return-type-mismatch.rs +++ b/tests/ui/closures/closure-return-type-mismatch.rs @@ -15,3 +15,7 @@ fn main() { b }; } + +// issue: rust-lang/rust#130858 rust-lang/rust#125655 +static FOO: fn() -> bool = || -> bool { 1 }; +//~^ ERROR mismatched types diff --git a/tests/ui/closures/closure-return-type-mismatch.stderr b/tests/ui/closures/closure-return-type-mismatch.stderr index 3a2f098d1efb3..052bbbb5ed579 100644 --- a/tests/ui/closures/closure-return-type-mismatch.stderr +++ b/tests/ui/closures/closure-return-type-mismatch.stderr @@ -1,3 +1,11 @@ +error[E0308]: mismatched types + --> $DIR/closure-return-type-mismatch.rs:20:41 + | +LL | static FOO: fn() -> bool = || -> bool { 1 }; + | ---- ^ expected `bool`, found integer + | | + | expected `bool` because of return type + error[E0308]: mismatched types --> $DIR/closure-return-type-mismatch.rs:7:9 | @@ -19,6 +27,6 @@ LL | if false { LL | return "hello" | ^^^^^^^ expected `bool`, found `&str` -error: aborting due to 2 previous errors +error: aborting due to 3 previous errors For more information about this error, try `rustc --explain E0308`.