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Tweak "incompatible match arms" error #58267

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merged 3 commits into from
Feb 14, 2019
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@estebank estebank commented Feb 7, 2019

  • Point at the body expression of the match arm with the type error.
  • Point at the prior match arms explicitly stating the evaluated type.
  • Point at the entire match expr in a secondary span, instead of primary.
  • For type errors in the first match arm, the cause is outside of the
    match, treat as implicit block error to give a more appropriate error.

Fix #46776, fix #57206.
CC #24157, #38234.

- Point at the body expression of the match arm with the type error.
- Point at the prior match arms explicitely stating the evaluated type.
- Point at the entire match expr in a secondary span, instead of primary.
- For type errors in the first match arm, the cause is outside of the
  match, treat as implicit block error to give a more appropriate error.
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r? @matthewjasper

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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 Feb 7, 2019
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@bors r+

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bors commented Feb 8, 2019

📌 Commit 7eb6a2a has been approved by matthewjasper

@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 Feb 8, 2019
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@bors r-

@bors bors 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-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Feb 8, 2019
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@bors r+

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bors commented Feb 8, 2019

📌 Commit 802c897 has been approved by matthewjasper

@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-author Status: This is awaiting some action (such as code changes or more information) from the author. labels Feb 8, 2019
Centril added a commit to Centril/rust that referenced this pull request Feb 14, 2019
Tweak "incompatible match arms" error

- Point at the body expression of the match arm with the type error.
- Point at the prior match arms explicitly stating the evaluated type.
- Point at the entire match expr in a secondary span, instead of primary.
- For type errors in the first match arm, the cause is outside of the
  match, treat as implicit block error to give a more appropriate error.

Fix rust-lang#46776, fix rust-lang#57206.
CC rust-lang#24157, rust-lang#38234.
Centril added a commit to Centril/rust that referenced this pull request Feb 14, 2019
Tweak "incompatible match arms" error

- Point at the body expression of the match arm with the type error.
- Point at the prior match arms explicitly stating the evaluated type.
- Point at the entire match expr in a secondary span, instead of primary.
- For type errors in the first match arm, the cause is outside of the
  match, treat as implicit block error to give a more appropriate error.

Fix rust-lang#46776, fix rust-lang#57206.
CC rust-lang#24157, rust-lang#38234.
bors added a commit that referenced this pull request Feb 14, 2019
Rollup of 8 pull requests

Successful merges:

 - #57451 (suggestion-diagnostics: as_ref improve snippet)
 - #57856 (Convert old first edition links to current edition one)
 - #57992 (Update the future/task API)
 - #58258 (Reduce the size of `hir::Expr`.)
 - #58267 (Tweak "incompatible match arms" error)
 - #58296 (Hidden suggestion support)
 - #58301 (Enable comparing fat pointers)
 - #58308 (Extract block to insert an intrinsic into its own function)

Failed merges:

r? @ghost
@bors bors merged commit 802c897 into rust-lang:master Feb 14, 2019
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