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Improve diagnostics for invalid assignment #67538

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merged 7 commits into from
Dec 23, 2019

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@varkor varkor commented Dec 22, 2019

  • Improve wording and span information for invalid assignment diagnostics.
  • Link to Destructuring assignment rfcs#372 when it appears the user is trying a destructuring assignment.
  • Make the equality constraint in where clauses error consistent with the invalid assignment error.

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r? @cramertj

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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 Dec 22, 2019
@varkor varkor force-pushed the lhs-assign-diagnostics branch from 2aeb937 to ddd4500 Compare December 22, 2019 21:15
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r=me with comments addressed

src/librustc_typeck/check/expr.rs Outdated Show resolved Hide resolved
src/test/ui/bad/destructuring-assignment.rs Outdated Show resolved Hide resolved
src/libsyntax/ast.rs Show resolved Hide resolved
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Centril commented Dec 22, 2019

r? @Centril

@rust-highfive rust-highfive assigned Centril and unassigned cramertj Dec 22, 2019
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Centril commented Dec 22, 2019

@bors r+

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bors commented Dec 22, 2019

📌 Commit 770725c has been approved by Centril

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bors commented Dec 22, 2019

🌲 The tree is currently closed for pull requests below priority 100, this pull request will be tested once the tree is reopened

@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 Dec 22, 2019
Centril added a commit to Centril/rust that referenced this pull request Dec 22, 2019
…ntril

Improve diagnostics for invalid assignment

- Improve wording and span information for invalid assignment diagnostics.
- Link to rust-lang/rfcs#372 when it appears the user is trying a destructuring assignment.
- Make the equality constraint in `where` clauses error consistent with the invalid assignment error.
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@varkor varkor force-pushed the lhs-assign-diagnostics branch from 770725c to 522a499 Compare December 23, 2019 01:18
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varkor commented Dec 23, 2019

@bors r=Centril

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bors commented Dec 23, 2019

📌 Commit 522a499de9b5daae8d0e44cca418fba537d358fa has been approved by Centril

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bors commented Dec 23, 2019

🌲 The tree is currently closed for pull requests below priority 100, this pull request will be tested once the tree is reopened

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bors commented Dec 23, 2019

☔ The latest upstream changes (presumably #67540) made this pull request unmergeable. Please resolve the merge conflicts.

@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 Dec 23, 2019
@varkor varkor force-pushed the lhs-assign-diagnostics branch from 522a499 to 9e50813 Compare December 23, 2019 12:39
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varkor commented Dec 23, 2019

@bors r=Centril

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bors commented Dec 23, 2019

📌 Commit 9e50813 has been approved by Centril

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bors commented Dec 23, 2019

🌲 The tree is currently closed for pull requests below priority 100, this pull request will be tested once the tree is reopened

@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 Dec 23, 2019
Centril added a commit to Centril/rust that referenced this pull request Dec 23, 2019
…ntril

Improve diagnostics for invalid assignment

- Improve wording and span information for invalid assignment diagnostics.
- Link to rust-lang/rfcs#372 when it appears the user is trying a destructuring assignment.
- Make the equality constraint in `where` clauses error consistent with the invalid assignment error.
bors added a commit that referenced this pull request Dec 23, 2019
Rollup of 8 pull requests

Successful merges:

 - #67233 (Add PartialEq and Eq to Cursor)
 - #67466 (Require const stability attributes on intrinsics to be able to use them in constant contexts)
 - #67507 (Remove mem::uninitalized from tests)
 - #67527 (Results show too much)
 - #67536 (Move `{hir::lowering -> hir}::is_range_literal`)
 - #67538 (Improve diagnostics for invalid assignment)
 - #67546 (Fix ICE in mir interpretation)
 - #67559 (Document that calling Drop, even after it panics, is UB)

Failed merges:

r? @ghost
@bors bors merged commit 9e50813 into rust-lang:master Dec 23, 2019
@varkor varkor deleted the lhs-assign-diagnostics branch December 23, 2019 22:37
bors added a commit to rust-lang/rust-clippy that referenced this pull request Dec 24, 2019
rustup "Add span information to `ExprKind::Assign`"

cc rust-lang/rust#67538
changelog: none
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6 participants