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diagnostics: error messages when struct literals fail to parse #99030

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merged 3 commits into from
Jul 13, 2022

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notriddle
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If an expression is supplied where a field is expected, the parser can become convinced that it's a shorthand field syntax when it's not.

This PR addresses it by explicitly recording the permitted : token immediately after the identifier, and also adds a suggestion to insert the name of the field if it looks like a complex expression.

Fixes #98917

@rustbot rustbot added the T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. label Jul 7, 2022
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r? @petrochenkov

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@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Jul 7, 2022
@petrochenkov petrochenkov added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Jul 12, 2022
Co-authored-by: Vadim Petrochenkov <vadim.petrochenkov@gmail.com>
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@rustbot rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. labels Jul 12, 2022
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@bors r+

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bors commented Jul 13, 2022

📌 Commit 9fcb9c6 has been approved by petrochenkov

It is now in the queue for this repository.

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Jul 13, 2022
bors added a commit to rust-lang-ci/rust that referenced this pull request Jul 13, 2022
Rollup of 5 pull requests

Successful merges:

 - rust-lang#98574 (Lower let-else in MIR)
 - rust-lang#99011 (`UnsafeCell` blocks niches inside its nested type from being available outside)
 - rust-lang#99030 (diagnostics: error messages when struct literals fail to parse)
 - rust-lang#99155 (Keep unstable target features for asm feature checking)
 - rust-lang#99199 (Refactor: remove an unnecessary `span_to_snippet`)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit 980579a into master Jul 13, 2022
@bors bors deleted the notriddle/field-recovery branch July 13, 2022 19:54
@rustbot rustbot added this to the 1.64.0 milestone Jul 13, 2022
flip1995 pushed a commit to flip1995/rust that referenced this pull request Jul 18, 2022
Rollup of 5 pull requests

Successful merges:

 - rust-lang#98574 (Lower let-else in MIR)
 - rust-lang#99011 (`UnsafeCell` blocks niches inside its nested type from being available outside)
 - rust-lang#99030 (diagnostics: error messages when struct literals fail to parse)
 - rust-lang#99155 (Keep unstable target features for asm feature checking)
 - rust-lang#99199 (Refactor: remove an unnecessary `span_to_snippet`)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
JohnTitor pushed a commit to JohnTitor/rust that referenced this pull request Jul 26, 2022
Rollup of 5 pull requests

Successful merges:

 - rust-lang#98574 (Lower let-else in MIR)
 - rust-lang#99011 (`UnsafeCell` blocks niches inside its nested type from being available outside)
 - rust-lang#99030 (diagnostics: error messages when struct literals fail to parse)
 - rust-lang#99155 (Keep unstable target features for asm feature checking)
 - rust-lang#99199 (Refactor: remove an unnecessary `span_to_snippet`)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
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No mention of "field init shorthand"
5 participants