mirror of https://github.com/rust-lang/rust
48 lines
1.5 KiB
Plaintext
48 lines
1.5 KiB
Plaintext
error[E0282]: type annotations needed for `Vec<_>`
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--> $DIR/method-ambig-one-trait-unknown-int-type.rs:24:9
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LL | let mut x = Vec::new();
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| ^^^^^ ---------- type must be known at this point
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help: consider giving `x` an explicit type, where the type for type parameter `T` is specified
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LL | let mut x: Vec<T> = Vec::new();
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| ++++++++
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error[E0283]: type annotations needed
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--> $DIR/method-ambig-one-trait-unknown-int-type.rs:26:7
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LL | x.foo();
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| ^^^
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note: multiple `impl`s satisfying `Vec<_>: Foo` found
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--> $DIR/method-ambig-one-trait-unknown-int-type.rs:9:1
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LL | impl Foo for Vec<usize> {
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| ^^^^^^^^^^^^^^^^^^^^^^^
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...
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LL | impl Foo for Vec<isize> {
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| ^^^^^^^^^^^^^^^^^^^^^^^
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help: try using a fully qualified path to specify the expected types
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LL | <Vec<T> as Foo>::foo(&x);
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| ++++++++++++++++++++++ ~
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error[E0308]: mismatched types
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--> $DIR/method-ambig-one-trait-unknown-int-type.rs:33:20
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LL | let y: usize = x.foo();
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| ----- ^^^^^^^ expected `usize`, found `isize`
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| |
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| expected due to this
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help: you can convert an `isize` to a `usize` and panic if the converted value doesn't fit
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LL | let y: usize = x.foo().try_into().unwrap();
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| ++++++++++++++++++++
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error: aborting due to 3 previous errors
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Some errors have detailed explanations: E0282, E0283, E0308.
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For more information about an error, try `rustc --explain E0282`.
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