Recover from parse error in tuple syntax #59453
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r? @eddyb (rust_highfive has picked a reviewer for you, use r? to override) |
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| @@ -1,10 +1,47 @@ | |||
| error: expected expression, found reserved identifier `_` | |||
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This is an ICE regression test, so I'm disinclined to change it to avoid the new errors.
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| = help: use `::<...>` instead of `<...>` if you meant to specify type arguments | ||
| = help: or use `(...)` if you meant to specify fn arguments | ||
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These new errors are unfortunate (caused by the changes in parse_bottom_expr) :-/
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r=me with @Centril's comments addressed or not |
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| LL | let x = Enum::Foo(a: 3, b: 4); | ||
| | ^ expecting a type here because of type ascription | ||
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| = note: type ascription is a nightly-only feature that lets you annotate an expression with a type: `<expr>: <type>` |
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As a follow up to this PR, could you point out the feature gate here?
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@Centril, do we want to nudge people towards enabling type ascription, particularly when the most common case for this error is caused by incorrect syntax, not an attempt to use the nightly feature?
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@estebank I don't think it wold be particularly invasive to point it out... It could be as simple as:
= note: #![feature(type_ascription)] lets you annotate an expression with a type: `<expr>: <type>`
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r=me with the failing test updated |
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@bors r=petrochenkov |
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📌 Commit 3592079 has been approved by |
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…rochenkov Recover from parse error in tuple syntax
…rochenkov Recover from parse error in tuple syntax
Rollup of 10 pull requests Successful merges: - #59376 (RFC 2008: Enum Variants) - #59453 (Recover from parse error in tuple syntax) - #59455 (Account for short-hand field syntax when suggesting borrow) - #59499 (Fix broken download link in the armhf-gnu image) - #59512 (implement `AsRawFd` for stdio locks) - #59525 (Whitelist some rustc attrs) - #59528 (Improve the dbg! macro docs ) - #59532 (In doc examples, don't ignore read/write results) - #59534 (rustdoc: collapse blanket impls in the same way as normal impls) - #59537 (Fix OnceWith docstring.) Failed merges: r? @ghost
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