Show source of ambiguity in a few more places
This commit is contained in:
Michael Goulet
parent
f44ae98cee
commit
ca0105ba4e
15 changed files with 35 additions and 20 deletions
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@ -2020,7 +2020,7 @@ impl<'a, 'tcx> InferCtxtPrivExt<'a, 'tcx> for InferCtxt<'a, 'tcx> {
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subst,
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impl_candidates,
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ErrorCode::E0283,
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false,
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true,
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);
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let obligation = Obligation::new(
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@ -2132,7 +2132,7 @@ impl<'a, 'tcx> InferCtxtPrivExt<'a, 'tcx> for InferCtxt<'a, 'tcx> {
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a.into(),
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vec![],
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ErrorCode::E0282,
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false,
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true,
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)
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}
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ty::PredicateKind::Projection(data) => {
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@ -2149,7 +2149,7 @@ impl<'a, 'tcx> InferCtxtPrivExt<'a, 'tcx> for InferCtxt<'a, 'tcx> {
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self_ty.into(),
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vec![],
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ErrorCode::E0284,
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false,
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true,
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);
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err.note(&format!("cannot satisfy `{}`", predicate));
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err
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@ -2,7 +2,7 @@ error[E0283]: type annotations needed for `Mask<_, LANES>`
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--> $DIR/issue-91614.rs:6:9
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LL | let y = Mask::<_, _>::splat(false);
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| ^
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| ^ ------------------- type must be known at this point
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= note: cannot satisfy `_: MaskElement`
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note: required by a bound in `Mask::<T, LANES>::splat`
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@ -3,6 +3,9 @@ error[E0282]: type annotations needed for `Result<(), QualifiedError<_>>`
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LL | let x = || -> Result<_, QualifiedError<_>> {
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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LL |
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LL | infallible()?;
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| ------------- type must be known at this point
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help: try giving this closure an explicit return type
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@ -2,7 +2,7 @@ error[E0283]: type annotations needed for `Foo<i32, &str, W, Z>`
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--> $DIR/erase-type-params-in-label.rs:2:9
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LL | let foo = foo(1, "");
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| ^^^
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| ^^^ --- type must be known at this point
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= note: cannot satisfy `_: Default`
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note: required by a bound in `foo`
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@ -23,7 +23,7 @@ error[E0283]: type annotations needed for `Bar<i32, &str, Z>`
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--> $DIR/erase-type-params-in-label.rs:5:9
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LL | let bar = bar(1, "");
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| ^^^
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| ^^^ --- type must be known at this point
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= note: cannot satisfy `_: Default`
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note: required by a bound in `bar`
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@ -2,7 +2,9 @@ error[E0283]: type annotations needed
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--> $DIR/issue-72616.rs:20:37
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LL | if String::from("a") == "a".try_into().unwrap() {}
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| ^^^^^^^^
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| -- ^^^^^^^^
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| |
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| type must be known at this point
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= note: multiple `impl`s satisfying `String: PartialEq<_>` found in the `alloc` crate:
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- impl PartialEq for String;
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@ -55,7 +55,7 @@ error[E0283]: type annotations needed for `&T`
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--> $DIR/issue-72690.rs:17:9
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LL | let _ = "x".as_ref();
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| ^
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| ^ ------ type must be known at this point
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= note: multiple `impl`s satisfying `str: AsRef<_>` found in the following crates: `core`, `std`:
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- impl AsRef<OsStr> for str;
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@ -2,7 +2,9 @@ error[E0283]: type annotations needed
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--> $DIR/issue-86162-1.rs:7:9
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LL | foo(gen()); //<- Do not suggest `foo::<impl Clone>()`!
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| ^^^ cannot infer type of the type parameter `T` declared on the function `gen`
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| --- ^^^ cannot infer type of the type parameter `T` declared on the function `gen`
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| |
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| type must be known at this point
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= note: cannot satisfy `_: Clone`
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note: required by a bound in `foo`
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@ -2,7 +2,9 @@ error[E0283]: type annotations needed
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--> $DIR/issue-86162-2.rs:12:14
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LL | Foo::bar(gen()); //<- Do not suggest `Foo::bar::<impl Clone>()`!
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| ^^^ cannot infer type of the type parameter `T` declared on the function `gen`
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| -------- ^^^ cannot infer type of the type parameter `T` declared on the function `gen`
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| |
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| type must be known at this point
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= note: cannot satisfy `_: Clone`
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note: required by a bound in `Foo::bar`
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@ -14,7 +14,9 @@ error[E0283]: type annotations needed
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--> $DIR/issue-69455.rs:29:41
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LL | println!("{}", 23u64.test(xs.iter().sum()));
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| ^^^ cannot infer type of the type parameter `S` declared on the associated function `sum`
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| ---- ^^^ cannot infer type of the type parameter `S` declared on the associated function `sum`
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| |
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| type must be known at this point
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note: multiple `impl`s satisfying `u64: Test<_>` found
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--> $DIR/issue-69455.rs:11:1
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@ -2,7 +2,7 @@ error[E0282]: type annotations needed for `&[_; 0]`
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--> $DIR/issue-7813.rs:2:9
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LL | let v = &[];
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| ^
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| ^ --- type must be known at this point
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help: consider giving `v` an explicit type, where the placeholders `_` are specified
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@ -2,7 +2,7 @@ error[E0282]: type annotations needed for `[_; 0]`
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--> $DIR/suggest-closure-return-type-1.rs:4:18
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LL | unbound_drop(|| -> _ { [] });
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| ^^^^^^^
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| ^^^^^^^ -- type must be known at this point
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help: try giving this closure an explicit return type
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@ -2,7 +2,7 @@ error[E0282]: type annotations needed for `[_; 0]`
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--> $DIR/suggest-closure-return-type-2.rs:4:18
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LL | unbound_drop(|| { [] })
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| ^^
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| ^^ -- type must be known at this point
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help: try giving this closure an explicit return type
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@ -2,7 +2,7 @@ error[E0282]: type annotations needed for `[_; 0]`
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--> $DIR/suggest-closure-return-type-3.rs:4:18
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LL | unbound_drop(|| []);
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| ^^
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| ^^ -- type must be known at this point
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help: try giving this closure an explicit return type
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@ -26,7 +26,9 @@ error[E0283]: type annotations needed
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--> $DIR/issue-77982.rs:8:10
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LL | opts.get(opt.as_ref());
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| ^^^ cannot infer type of the type parameter `Q` declared on the associated function `get`
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| ^^^ ------ type must be known at this point
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| |
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| cannot infer type of the type parameter `Q` declared on the associated function `get`
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= note: multiple `impl`s satisfying `String: AsRef<_>` found in the following crates: `alloc`, `std`:
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- impl AsRef<OsStr> for String;
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@ -42,7 +44,9 @@ error[E0283]: type annotations needed
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--> $DIR/issue-77982.rs:13:59
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LL | let ips: Vec<_> = (0..100_000).map(|_| u32::from(0u32.into())).collect();
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| ^^^^
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| --------- ^^^^
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| |
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| type must be known at this point
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= note: multiple `impl`s satisfying `u32: From<_>` found in the following crates: `core`, `std`:
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- impl From<Ipv4Addr> for u32;
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@ -59,7 +63,7 @@ error[E0283]: type annotations needed for `Box<T>`
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--> $DIR/issue-77982.rs:36:9
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LL | let _ = ().foo();
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| ^
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| ^ --- type must be known at this point
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note: multiple `impl`s satisfying `(): Foo<'_, _>` found
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--> $DIR/issue-77982.rs:29:1
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@ -77,7 +81,7 @@ error[E0283]: type annotations needed for `Box<T>`
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--> $DIR/issue-77982.rs:40:9
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LL | let _ = (&()).bar();
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| ^
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| ^ --- type must be known at this point
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note: multiple `impl`s satisfying `&(): Bar<'_, _>` found
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--> $DIR/issue-77982.rs:32:1
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@ -2,7 +2,7 @@ error[E0282]: type annotations needed for `[_; 0]`
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--> $DIR/cannot_infer_local_or_array.rs:2:9
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LL | let x = [];
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| ^
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| ^ -- type must be known at this point
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help: consider giving `x` an explicit type, where the placeholders `_` are specified
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