diff --git a/compiler/rustc_infer/src/infer/error_reporting/mod.rs b/compiler/rustc_infer/src/infer/error_reporting/mod.rs index 554a70265d43c..b5c2d14e8d15b 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/mod.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/mod.rs @@ -60,7 +60,7 @@ use crate::traits::{ use rustc_data_structures::fx::{FxIndexMap, FxIndexSet}; use rustc_errors::{pluralize, struct_span_err, Diagnostic, ErrorGuaranteed, IntoDiagnosticArg}; -use rustc_errors::{Applicability, DiagnosticBuilder, DiagnosticStyledString, MultiSpan}; +use rustc_errors::{Applicability, DiagnosticBuilder, DiagnosticStyledString}; use rustc_hir as hir; use rustc_hir::def::DefKind; use rustc_hir::def_id::{DefId, LocalDefId}; @@ -1470,51 +1470,17 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { for (key, values) in types.iter() { let count = values.len(); let kind = key.descr(); - let mut returned_async_output_error = false; for &sp in values { - if sp.is_desugaring(DesugaringKind::Async) && !returned_async_output_error { - if [sp] != err.span.primary_spans() { - let mut span: MultiSpan = sp.into(); - span.push_span_label( - sp, - format!( - "checked the `Output` of this `async fn`, {}{} {}{}", - if count > 1 { "one of the " } else { "" }, - target, - kind, - pluralize!(count), - ), - ); - err.span_note( - span, - "while checking the return type of the `async fn`", - ); - } else { - err.span_label( - sp, - format!( - "checked the `Output` of this `async fn`, {}{} {}{}", - if count > 1 { "one of the " } else { "" }, - target, - kind, - pluralize!(count), - ), - ); - err.note("while checking the return type of the `async fn`"); - } - returned_async_output_error = true; - } else { - err.span_label( - sp, - format!( - "{}{} {}{}", - if count == 1 { "the " } else { "one of the " }, - target, - kind, - pluralize!(count), - ), - ); - } + err.span_label( + sp, + format!( + "{}{} {}{}", + if count == 1 { "the " } else { "one of the " }, + target, + kind, + pluralize!(count), + ), + ); } } } @@ -1537,7 +1503,11 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { // | // = note: expected unit type `()` // found closure `[closure@$DIR/issue-20862.rs:2:5: 2:14 x:_]` - if !self.ignore_span.overlaps(span) { + // + // Also ignore opaque `Future`s that come from async fns. + if !self.ignore_span.overlaps(span) + && !span.is_desugaring(DesugaringKind::Async) + { self.types.entry(kind).or_default().insert(span); } } diff --git a/tests/ui/async-await/dont-suggest-missing-await.stderr b/tests/ui/async-await/dont-suggest-missing-await.stderr index 627bf05bba2d9..8e2d42c8f138c 100644 --- a/tests/ui/async-await/dont-suggest-missing-await.stderr +++ b/tests/ui/async-await/dont-suggest-missing-await.stderr @@ -6,11 +6,6 @@ LL | take_u32(x) | | | arguments to this function are incorrect | -note: while checking the return type of the `async fn` - --> $DIR/dont-suggest-missing-await.rs:7:24 - | -LL | async fn make_u32() -> u32 { - | ^^^ checked the `Output` of this `async fn`, found opaque type = note: expected type `u32` found opaque type `impl Future` note: function defined here diff --git a/tests/ui/async-await/generator-desc.stderr b/tests/ui/async-await/generator-desc.stderr index 963c6ba57adf8..9fdb1ce47d7ba 100644 --- a/tests/ui/async-await/generator-desc.stderr +++ b/tests/ui/async-await/generator-desc.stderr @@ -21,16 +21,6 @@ LL | fun(one(), two()); | | | arguments to this function are incorrect | -note: while checking the return type of the `async fn` - --> $DIR/generator-desc.rs:5:16 - | -LL | async fn one() {} - | ^ checked the `Output` of this `async fn`, expected opaque type -note: while checking the return type of the `async fn` - --> $DIR/generator-desc.rs:6:16 - | -LL | async fn two() {} - | ^ checked the `Output` of this `async fn`, found opaque type = note: expected opaque type `impl Future` (opaque type at <$DIR/generator-desc.rs:5:16>) found opaque type `impl Future` (opaque type at <$DIR/generator-desc.rs:6:16>) = help: consider `await`ing on both `Future`s diff --git a/tests/ui/async-await/issue-61076.rs b/tests/ui/async-await/issue-61076.rs index 3cde5cca3c3cd..9c4acbe0a5bf7 100644 --- a/tests/ui/async-await/issue-61076.rs +++ b/tests/ui/async-await/issue-61076.rs @@ -54,9 +54,6 @@ async fn struct_() -> Struct { } async fn tuple() -> Tuple { - //~^ NOTE checked the `Output` of this `async fn`, expected opaque type - //~| NOTE while checking the return type of the `async fn` - //~| NOTE in this expansion of desugaring of `async` block or function Tuple(1i32) } diff --git a/tests/ui/async-await/issue-61076.stderr b/tests/ui/async-await/issue-61076.stderr index 5a7316edd01f5..b25b29bf50c17 100644 --- a/tests/ui/async-await/issue-61076.stderr +++ b/tests/ui/async-await/issue-61076.stderr @@ -11,7 +11,7 @@ LL | foo().await?; | ++++++ error[E0277]: the `?` operator can only be applied to values that implement `Try` - --> $DIR/issue-61076.rs:65:5 + --> $DIR/issue-61076.rs:62:5 | LL | t?; | ^^ the `?` operator cannot be applied to type `T` @@ -23,7 +23,7 @@ LL | t.await?; | ++++++ error[E0609]: no field `0` on type `impl Future` - --> $DIR/issue-61076.rs:74:26 + --> $DIR/issue-61076.rs:71:26 | LL | let _: i32 = tuple().0; | ^ field not available in `impl Future`, but it is available in its `Output` @@ -34,7 +34,7 @@ LL | let _: i32 = tuple().await.0; | ++++++ error[E0609]: no field `a` on type `impl Future` - --> $DIR/issue-61076.rs:78:28 + --> $DIR/issue-61076.rs:75:28 | LL | let _: i32 = struct_().a; | ^ field not available in `impl Future`, but it is available in its `Output` @@ -45,7 +45,7 @@ LL | let _: i32 = struct_().await.a; | ++++++ error[E0599]: no method named `method` found for opaque type `impl Future` in the current scope - --> $DIR/issue-61076.rs:82:15 + --> $DIR/issue-61076.rs:79:15 | LL | struct_().method(); | ^^^^^^ method not found in `impl Future` @@ -56,7 +56,7 @@ LL | struct_().await.method(); | ++++++ error[E0308]: mismatched types - --> $DIR/issue-61076.rs:91:9 + --> $DIR/issue-61076.rs:88:9 | LL | match tuple() { | ------- this expression has type `impl Future` @@ -64,11 +64,6 @@ LL | LL | Tuple(_) => {} | ^^^^^^^^ expected opaque type, found `Tuple` | -note: while checking the return type of the `async fn` - --> $DIR/issue-61076.rs:56:21 - | -LL | async fn tuple() -> Tuple { - | ^^^^^ checked the `Output` of this `async fn`, expected opaque type = note: expected opaque type `impl Future` found struct `Tuple` help: consider `await`ing on the `Future` diff --git a/tests/ui/async-await/issue-98634.stderr b/tests/ui/async-await/issue-98634.stderr index 08ea5bdc574fa..4c5dfeed9ba5c 100644 --- a/tests/ui/async-await/issue-98634.stderr +++ b/tests/ui/async-await/issue-98634.stderr @@ -4,11 +4,6 @@ error[E0271]: expected `callback` to be a fn item that returns `Pin>>`, found opaque type | -note: while checking the return type of the `async fn` - --> $DIR/issue-98634.rs:24:21 - | -LL | async fn callback() {} - | ^ checked the `Output` of this `async fn`, found opaque type = note: expected struct `Pin + 'static)>>` found opaque type `impl Future` note: required by a bound in `StructAsync` @@ -23,11 +18,6 @@ error[E0271]: expected `callback` to be a fn item that returns `Pin>>`, found opaque type | -note: while checking the return type of the `async fn` - --> $DIR/issue-98634.rs:24:21 - | -LL | async fn callback() {} - | ^ checked the `Output` of this `async fn`, found opaque type = note: expected struct `Pin + 'static)>>` found opaque type `impl Future` note: required by a bound in `StructAsync` @@ -42,11 +32,6 @@ error[E0271]: expected `callback` to be a fn item that returns `Pin>>`, found opaque type | -note: while checking the return type of the `async fn` - --> $DIR/issue-98634.rs:24:21 - | -LL | async fn callback() {} - | ^ checked the `Output` of this `async fn`, found opaque type = note: expected struct `Pin + 'static)>>` found opaque type `impl Future` note: required by a bound in `StructAsync` diff --git a/tests/ui/async-await/issues/issue-102206.stderr b/tests/ui/async-await/issues/issue-102206.stderr index eef711910a1a0..ebb80f6e07e74 100644 --- a/tests/ui/async-await/issues/issue-102206.stderr +++ b/tests/ui/async-await/issues/issue-102206.stderr @@ -8,11 +8,6 @@ LL | std::mem::size_of_val(foo()); | | help: consider borrowing here: `&foo()` | arguments to this function are incorrect | -note: while checking the return type of the `async fn` - --> $DIR/issue-102206.rs:3:16 - | -LL | async fn foo() {} - | ^ checked the `Output` of this `async fn`, found opaque type = note: expected reference `&_` found opaque type `impl Future` note: function defined here diff --git a/tests/ui/async-await/suggest-missing-await-closure.stderr b/tests/ui/async-await/suggest-missing-await-closure.stderr index a5958baffbaf7..e47325cb4aeae 100644 --- a/tests/ui/async-await/suggest-missing-await-closure.stderr +++ b/tests/ui/async-await/suggest-missing-await-closure.stderr @@ -6,11 +6,6 @@ LL | take_u32(x) | | | arguments to this function are incorrect | -note: while checking the return type of the `async fn` - --> $DIR/suggest-missing-await-closure.rs:8:24 - | -LL | async fn make_u32() -> u32 { - | ^^^ checked the `Output` of this `async fn`, found opaque type = note: expected type `u32` found opaque type `impl Future` note: function defined here diff --git a/tests/ui/async-await/suggest-missing-await.stderr b/tests/ui/async-await/suggest-missing-await.stderr index 2db0666f1ae68..4ed0272ac1a12 100644 --- a/tests/ui/async-await/suggest-missing-await.stderr +++ b/tests/ui/async-await/suggest-missing-await.stderr @@ -6,11 +6,6 @@ LL | take_u32(x) | | | arguments to this function are incorrect | -note: while checking the return type of the `async fn` - --> $DIR/suggest-missing-await.rs:5:24 - | -LL | async fn make_u32() -> u32 { - | ^^^ checked the `Output` of this `async fn`, found opaque type = note: expected type `u32` found opaque type `impl Future` note: function defined here @@ -29,11 +24,6 @@ error[E0308]: mismatched types LL | dummy() | ^^^^^^^ expected `()`, found opaque type | -note: while checking the return type of the `async fn` - --> $DIR/suggest-missing-await.rs:18:18 - | -LL | async fn dummy() {} - | ^ checked the `Output` of this `async fn`, found opaque type = note: expected unit type `()` found opaque type `impl Future` help: consider `await`ing on the `Future` @@ -60,11 +50,6 @@ LL | | LL | | }; | |_____- `if` and `else` have incompatible types | -note: while checking the return type of the `async fn` - --> $DIR/suggest-missing-await.rs:18:18 - | -LL | async fn dummy() {} - | ^ checked the `Output` of this `async fn`, expected opaque type = note: expected opaque type `impl Future` found unit type `()` help: consider `await`ing on the `Future` @@ -87,11 +72,6 @@ LL | | LL | | }; | |_____- `match` arms have incompatible types | -note: while checking the return type of the `async fn` - --> $DIR/suggest-missing-await.rs:18:18 - | -LL | async fn dummy() {} - | ^ checked the `Output` of this `async fn`, expected opaque type = note: expected opaque type `impl Future` found unit type `()` help: consider `await`ing on the `Future` @@ -108,11 +88,6 @@ LL | let _x = match dummy() { LL | () => {} | ^^ expected opaque type, found `()` | -note: while checking the return type of the `async fn` - --> $DIR/suggest-missing-await.rs:18:18 - | -LL | async fn dummy() {} - | ^ checked the `Output` of this `async fn`, expected opaque type = note: expected opaque type `impl Future` found unit type `()` help: consider `await`ing on the `Future` @@ -129,11 +104,6 @@ LL | match dummy_result() { LL | Ok(_) => {} | ^^^^^ expected opaque type, found `Result<_, _>` | -note: while checking the return type of the `async fn` - --> $DIR/suggest-missing-await.rs:57:28 - | -LL | async fn dummy_result() -> Result<(), ()> { - | ^^^^^^^^^^^^^^ checked the `Output` of this `async fn`, expected opaque type = note: expected opaque type `impl Future>` found enum `Result<_, _>` help: consider `await`ing on the `Future` @@ -150,11 +120,6 @@ LL | match dummy_result() { LL | Err(_) => {} | ^^^^^^ expected opaque type, found `Result<_, _>` | -note: while checking the return type of the `async fn` - --> $DIR/suggest-missing-await.rs:57:28 - | -LL | async fn dummy_result() -> Result<(), ()> { - | ^^^^^^^^^^^^^^ checked the `Output` of this `async fn`, expected opaque type = note: expected opaque type `impl Future>` found enum `Result<_, _>` help: consider `await`ing on the `Future` diff --git a/tests/ui/impl-trait/in-trait/method-signature-matches.stderr b/tests/ui/impl-trait/in-trait/method-signature-matches.stderr index 4dfd772222e5d..3ec62020e6c89 100644 --- a/tests/ui/impl-trait/in-trait/method-signature-matches.stderr +++ b/tests/ui/impl-trait/in-trait/method-signature-matches.stderr @@ -24,16 +24,6 @@ LL | async fn owo(_: u8) {} | expected `()`, found `u8` | help: change the parameter type to match the trait: `()` | -note: while checking the return type of the `async fn` - --> $DIR/method-signature-matches.rs:20:25 - | -LL | async fn owo(_: u8) {} - | ^ checked the `Output` of this `async fn`, expected opaque type -note: while checking the return type of the `async fn` - --> $DIR/method-signature-matches.rs:20:25 - | -LL | async fn owo(_: u8) {} - | ^ checked the `Output` of this `async fn`, found opaque type note: type in trait --> $DIR/method-signature-matches.rs:16:21 | diff --git a/tests/ui/impl-trait/issue-102605.stderr b/tests/ui/impl-trait/issue-102605.stderr index 6cf0c33ad9190..8ff08968008bb 100644 --- a/tests/ui/impl-trait/issue-102605.stderr +++ b/tests/ui/impl-trait/issue-102605.stderr @@ -6,11 +6,6 @@ LL | convert_result(foo()) | | | arguments to this function are incorrect | -note: while checking the return type of the `async fn` - --> $DIR/issue-102605.rs:3:19 - | -LL | async fn foo() -> Result<(), String> { - | ^^^^^^^^^^^^^^^^^^ checked the `Output` of this `async fn`, found opaque type = note: expected enum `Result<(), _>` found opaque type `impl Future>` note: function defined here diff --git a/tests/ui/impl-trait/issue-99914.stderr b/tests/ui/impl-trait/issue-99914.stderr index 3b4e130fdebde..a4b7fc1f5bc75 100644 --- a/tests/ui/impl-trait/issue-99914.stderr +++ b/tests/ui/impl-trait/issue-99914.stderr @@ -4,11 +4,6 @@ error[E0308]: mismatched types LL | t.and_then(|t| -> _ { bar(t) }); | ^^^^^^ expected `Result<_, Error>`, found opaque type | -note: while checking the return type of the `async fn` - --> $DIR/issue-99914.rs:13:23 - | -LL | async fn bar(t: Okay) {} - | ^ checked the `Output` of this `async fn`, found opaque type = note: expected enum `Result<_, Error>` found opaque type `impl Future` help: try wrapping the expression in `Ok` diff --git a/tests/ui/suggestions/if-then-neeing-semi.rs b/tests/ui/suggestions/if-then-neeing-semi.rs index b487f013d2706..7be4312bfbacb 100644 --- a/tests/ui/suggestions/if-then-neeing-semi.rs +++ b/tests/ui/suggestions/if-then-neeing-semi.rs @@ -15,18 +15,9 @@ fn extra_semicolon() { }; } -async fn async_dummy() {} //~ NOTE checked the `Output` of this `async fn`, found opaque type -//~| NOTE while checking the return type of the `async fn` -//~| NOTE in this expansion of desugaring of `async` block or function -//~| NOTE checked the `Output` of this `async fn`, expected opaque type -//~| NOTE while checking the return type of the `async fn` -//~| NOTE in this expansion of desugaring of `async` block or function -async fn async_dummy2() {} //~ NOTE checked the `Output` of this `async fn`, found opaque type -//~| NOTE checked the `Output` of this `async fn`, found opaque type -//~| NOTE while checking the return type of the `async fn` -//~| NOTE in this expansion of desugaring of `async` block or function -//~| NOTE while checking the return type of the `async fn` -//~| NOTE in this expansion of desugaring of `async` block or function +async fn async_dummy() {} + +async fn async_dummy2() {} async fn async_extra_semicolon_same() { let _ = if true { diff --git a/tests/ui/suggestions/if-then-neeing-semi.stderr b/tests/ui/suggestions/if-then-neeing-semi.stderr index d7c5818abbd54..567deb405fccd 100644 --- a/tests/ui/suggestions/if-then-neeing-semi.stderr +++ b/tests/ui/suggestions/if-then-neeing-semi.stderr @@ -1,5 +1,5 @@ error[E0308]: `if` and `else` have incompatible types - --> $DIR/if-then-neeing-semi.rs:37:9 + --> $DIR/if-then-neeing-semi.rs:28:9 | LL | let _ = if true { | _____________- @@ -15,11 +15,6 @@ LL | | LL | | }; | |_____- `if` and `else` have incompatible types | -note: while checking the return type of the `async fn` - --> $DIR/if-then-neeing-semi.rs:18:24 - | -LL | async fn async_dummy() {} - | ^ checked the `Output` of this `async fn`, found opaque type = note: expected unit type `()` found opaque type `impl Future` help: consider `await`ing on the `Future` @@ -33,7 +28,7 @@ LL + async_dummy() | error[E0308]: `if` and `else` have incompatible types - --> $DIR/if-then-neeing-semi.rs:50:9 + --> $DIR/if-then-neeing-semi.rs:41:9 | LL | let _ = if true { | _____________- @@ -49,11 +44,6 @@ LL | | LL | | }; | |_____- `if` and `else` have incompatible types | -note: while checking the return type of the `async fn` - --> $DIR/if-then-neeing-semi.rs:24:25 - | -LL | async fn async_dummy2() {} - | ^ checked the `Output` of this `async fn`, found opaque type = note: expected unit type `()` found opaque type `impl Future` help: consider `await`ing on the `Future` @@ -69,7 +59,7 @@ LL ~ Box::new(async_dummy2()) | error[E0308]: `if` and `else` have incompatible types - --> $DIR/if-then-neeing-semi.rs:63:9 + --> $DIR/if-then-neeing-semi.rs:54:9 | LL | let _ = if true { | _____________- @@ -85,18 +75,8 @@ LL | | LL | | }; | |_____- `if` and `else` have incompatible types | -note: while checking the return type of the `async fn` - --> $DIR/if-then-neeing-semi.rs:18:24 - | -LL | async fn async_dummy() {} - | ^ checked the `Output` of this `async fn`, expected opaque type -note: while checking the return type of the `async fn` - --> $DIR/if-then-neeing-semi.rs:24:25 - | -LL | async fn async_dummy2() {} - | ^ checked the `Output` of this `async fn`, found opaque type = note: expected opaque type `impl Future` (opaque type at <$DIR/if-then-neeing-semi.rs:18:24>) - found opaque type `impl Future` (opaque type at <$DIR/if-then-neeing-semi.rs:24:25>) + found opaque type `impl Future` (opaque type at <$DIR/if-then-neeing-semi.rs:20:25>) = note: distinct uses of `impl Trait` result in different opaque types help: consider `await`ing on both `Future`s | diff --git a/tests/ui/suggestions/issue-81839.stderr b/tests/ui/suggestions/issue-81839.stderr index fae474cedb886..4af7cc9f8ec80 100644 --- a/tests/ui/suggestions/issue-81839.stderr +++ b/tests/ui/suggestions/issue-81839.stderr @@ -14,11 +14,6 @@ LL | | _ => cx.answer_str("hi"), LL | | } | |_____- `match` arms have incompatible types | -note: while checking the return type of the `async fn` - --> $DIR/auxiliary/issue-81839.rs:6:49 - | -LL | pub async fn answer_str(&self, _s: &str) -> Test { - | ^^^^ checked the `Output` of this `async fn`, found opaque type = note: expected unit type `()` found opaque type `impl Future` diff --git a/tests/ui/suggestions/match-prev-arm-needing-semi.rs b/tests/ui/suggestions/match-prev-arm-needing-semi.rs index 8c8abe047c2ab..3f863cb104e0b 100644 --- a/tests/ui/suggestions/match-prev-arm-needing-semi.rs +++ b/tests/ui/suggestions/match-prev-arm-needing-semi.rs @@ -13,18 +13,9 @@ fn extra_semicolon() { }; } -async fn async_dummy() {} //~ NOTE checked the `Output` of this `async fn`, found opaque type -//~| NOTE while checking the return type of the `async fn` -//~| NOTE in this expansion of desugaring of `async` block or function -//~| NOTE checked the `Output` of this `async fn`, expected opaque type -//~| NOTE while checking the return type of the `async fn` -//~| NOTE in this expansion of desugaring of `async` block or function -async fn async_dummy2() {} //~ NOTE checked the `Output` of this `async fn`, found opaque type -//~| NOTE checked the `Output` of this `async fn`, found opaque type -//~| NOTE while checking the return type of the `async fn` -//~| NOTE in this expansion of desugaring of `async` block or function -//~| NOTE while checking the return type of the `async fn` -//~| NOTE in this expansion of desugaring of `async` block or function +async fn async_dummy() {} + +async fn async_dummy2() {} async fn async_extra_semicolon_same() { let _ = match true { //~ NOTE `match` arms have incompatible types diff --git a/tests/ui/suggestions/match-prev-arm-needing-semi.stderr b/tests/ui/suggestions/match-prev-arm-needing-semi.stderr index 8d735b71f8278..df18c7b0b23cc 100644 --- a/tests/ui/suggestions/match-prev-arm-needing-semi.stderr +++ b/tests/ui/suggestions/match-prev-arm-needing-semi.stderr @@ -1,5 +1,5 @@ error[E0308]: `match` arms have incompatible types - --> $DIR/match-prev-arm-needing-semi.rs:35:18 + --> $DIR/match-prev-arm-needing-semi.rs:26:18 | LL | let _ = match true { | _____________- @@ -15,11 +15,6 @@ LL | | LL | | }; | |_____- `match` arms have incompatible types | -note: while checking the return type of the `async fn` - --> $DIR/match-prev-arm-needing-semi.rs:16:24 - | -LL | async fn async_dummy() {} - | ^ checked the `Output` of this `async fn`, found opaque type = note: expected unit type `()` found opaque type `impl Future` help: consider `await`ing on the `Future` @@ -33,7 +28,7 @@ LL + async_dummy() | error[E0308]: `match` arms have incompatible types - --> $DIR/match-prev-arm-needing-semi.rs:48:18 + --> $DIR/match-prev-arm-needing-semi.rs:39:18 | LL | let _ = match true { | _____________- @@ -49,11 +44,6 @@ LL | | LL | | }; | |_____- `match` arms have incompatible types | -note: while checking the return type of the `async fn` - --> $DIR/match-prev-arm-needing-semi.rs:22:25 - | -LL | async fn async_dummy2() {} - | ^ checked the `Output` of this `async fn`, found opaque type = note: expected unit type `()` found opaque type `impl Future` help: consider `await`ing on the `Future` @@ -69,7 +59,7 @@ LL ~ false => Box::new(async_dummy2()), | error[E0308]: `match` arms have incompatible types - --> $DIR/match-prev-arm-needing-semi.rs:59:18 + --> $DIR/match-prev-arm-needing-semi.rs:50:18 | LL | let _ = match true { | _____________- @@ -83,18 +73,8 @@ LL | | LL | | }; | |_____- `match` arms have incompatible types | -note: while checking the return type of the `async fn` - --> $DIR/match-prev-arm-needing-semi.rs:16:24 - | -LL | async fn async_dummy() {} - | ^ checked the `Output` of this `async fn`, expected opaque type -note: while checking the return type of the `async fn` - --> $DIR/match-prev-arm-needing-semi.rs:22:25 - | -LL | async fn async_dummy2() {} - | ^ checked the `Output` of this `async fn`, found opaque type = note: expected opaque type `impl Future` (opaque type at <$DIR/match-prev-arm-needing-semi.rs:16:24>) - found opaque type `impl Future` (opaque type at <$DIR/match-prev-arm-needing-semi.rs:22:25>) + found opaque type `impl Future` (opaque type at <$DIR/match-prev-arm-needing-semi.rs:18:25>) = note: distinct uses of `impl Trait` result in different opaque types help: consider `await`ing on both `Future`s | diff --git a/tests/ui/type-alias-impl-trait/issue-98604.stderr b/tests/ui/type-alias-impl-trait/issue-98604.stderr index c5a4b5217d7a0..bb9dd2365ea0d 100644 --- a/tests/ui/type-alias-impl-trait/issue-98604.stderr +++ b/tests/ui/type-alias-impl-trait/issue-98604.stderr @@ -4,11 +4,6 @@ error[E0271]: expected `test` to be a fn item that returns `Pin>>`, found opaque type | -note: while checking the return type of the `async fn` - --> $DIR/issue-98604.rs:5:17 - | -LL | async fn test() {} - | ^ checked the `Output` of this `async fn`, found opaque type = note: expected struct `Pin + 'static)>>` found opaque type `impl Future` = note: required for the cast from `fn() -> impl Future {test}` to the object type `dyn Fn() -> Pin + 'static)>>`