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796be88062
When suggesting a type on inference error, do not use `{closure@..}`.
Instead, replace with an appropriate `fn` ptr.
On the error message, use `short_ty_string` and write long types to
disk.
```
error[E0284]: type annotations needed for `Select<{closure@lib.rs:2782:13}, _, Expression<'_>, _>`
--> crates/lang/src/parser.rs:41:13
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41 | let lit = select! {
| ^^^
42 | Token::Int(i) = e => Expression::new(Expr::Lit(ast::Lit::Int(i.parse().unwrap())), e.span()),
| ---- type must be known at this point
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= note: the full type name has been written to '/home/gh-estebank/iowo/target/debug/deps/lang-e2d6e25819442273.long-type-4587393693885174369.txt'
= note: cannot satisfy `<_ as chumsky::input::Input<'_>>::Span == SimpleSpan`
help: consider giving `lit` an explicit type, where the type for type parameter `I` is specified
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41 | let lit: Select<for<'a, 'b> fn(tokens::Token<'_>, &'a mut MapExtra<'_, 'b, _, _>) -> Option<Expression<'_>>, _, Expression<'_>, _> = select! {
| +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
```
instead of
```
error[E0284]: type annotations needed for `Select<{closure@/home/gh-estebank/.cargo/registry/src/index.crates.io-6f17d22bba15001f/chumsky-1.0.0-alpha.6/src/lib.rs:2782:13: 2782:28}, _, Expression<'_>, _>`
--> crates/lang/src/parser.rs:41:13
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41 | let lit = select! {
| ^^^
42 | Token::Int(i) = e => Expression::new(Expr::Lit(ast::Lit::Int(i.parse().unwrap())), e.span()),
| ---- type must be known at this point
|
= note: cannot satisfy `<_ as chumsky::input::Input<'_>>::Span == SimpleSpan`
help: consider giving `lit` an explicit type, where the type for type parameter `I` is specified
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41 | let lit: Select<{closure@/home/gh-estebank/.cargo/registry/src/index.crates.io-6f17d22bba15001f/chumsky-1.0.0-alpha.6/src/lib.rs:2782:13: 2782:28}, _, Expression<'_>, _> = select! {
| ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
```
Fix #123630.
36 lines
1.1 KiB
Plaintext
36 lines
1.1 KiB
Plaintext
error[E0308]: mismatched types
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--> $DIR/issue-62504.rs:18:21
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LL | ArrayHolder([0; Self::SIZE])
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| ^^^^^^^^^^^^^^^ expected `X`, found `Self::SIZE`
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= note: expected constant `X`
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found constant `Self::SIZE`
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error: unconstrained generic constant
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--> $DIR/issue-62504.rs:18:25
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LL | ArrayHolder([0; Self::SIZE])
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| ^^^^^^^^^^
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help: try adding a `where` bound
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LL | pub const fn new() -> Self where [(); Self::SIZE]: {
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| +++++++++++++++++++++++
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error[E0282]: type annotations needed for `ArrayHolder<_>`
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--> $DIR/issue-62504.rs:26:9
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LL | let mut array = ArrayHolder::new();
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| ^^^^^^^^^
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help: consider giving `array` an explicit type, where the value of const parameter `X` is specified
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LL | let mut array: ArrayHolder<X> = ArrayHolder::new();
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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, E0308.
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For more information about an error, try `rustc --explain E0282`.
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