Stuart Cook 417bea36ef Rollup merge of #148508 - estebank:issue-74617, r=nnethercote ...

Provide more context when mutably borrowing an imutably borrowed value

Point at statics and consts being mutable borrowed or written to:

```
error[E0594]: cannot assign to immutable static item `NUM`
  --> $DIR/E0594.rs:4:5
   |
LL | static NUM: i32 = 18;
   | --------------- this `static` cannot be written to
...
LL |     NUM = 20;
   |     ^^^^^^^^ cannot assign
```

Point at the expression that couldn't be mutably borrowed from a pattern:

```
error[E0596]: cannot borrow data in a `&` reference as mutable
  --> $DIR/mut-pattern-of-immutable-borrow.rs:19:14
   |
LL |     match &arg.field {
   |           ---------- this cannot be borrowed as mutable
LL |         Some(ref mut s) => s.push('a'),
   |              ^^^^^^^^^ cannot borrow as mutable
```

Partially address rust-lang/rust#74617.

2025-11-11 21:09:38 +11:00

..

auxiliary

Move some tests out of tests/ui

2025-05-03 17:22:52 +02:00

bindings-after-at

Diagnose liveness on MIR.

2025-10-11 20:50:21 +00:00

deref-patterns

fix: Add col separator before secondary messages with no source

2025-08-26 15:15:17 -06:00

move-ref-patterns

Provide more context when mutably borrowing an imutable borrow

2025-11-09 22:14:48 +00:00

rfc-3627-match-ergonomics-2024

Provide more context when mutably borrowing an imutable borrow

2025-11-09 22:14:48 +00:00

rfc-3637-guard-patterns

On binding not present in all patterns, suggest potential typo

2025-08-25 15:16:25 +00:00

usefulness

test: Subtract code_offset from width for ui_testing

2025-10-02 05:45:16 -06:00

array-length-mismatch-13482.rs

comments

2025-08-05 19:34:46 +05:00

array-length-mismatch-13482.stderr

comments

2025-08-05 19:34:46 +05:00

array-length-mismatch-verbose-13482.rs

comments

2025-08-05 19:34:46 +05:00

array-length-mismatch-verbose-13482.stderr

comments

2025-08-05 19:34:46 +05:00

at-in-struct-patterns.rs

don't uppercase error messages

2025-09-03 15:24:49 +02:00

at-in-struct-patterns.stderr

don't uppercase error messages

2025-09-03 15:24:49 +02:00

box-pattern-constructor-mismatch.rs

always check for mixed deref pattern and normal constructors

2025-07-04 23:47:31 -07:00

box-pattern-constructor-mismatch.stderr

always check for mixed deref pattern and normal constructors

2025-07-04 23:47:31 -07:00

box-pattern-type-mismatch.rs

Replace some Option<Diag> with Result<(), Diag>

2024-06-13 06:16:12 +00:00

box-pattern-type-mismatch.stderr

Replace some Option<Diag> with Result<(), Diag>

2024-06-13 06:16:12 +00:00

by-move-pattern-binding.rs

Move 100 entries from tests/ui into subdirs

2024-05-20 19:55:59 -07:00

by-move-pattern-binding.stderr

Move 100 entries from tests/ui into subdirs

2024-05-20 19:55:59 -07:00

byte-string-inference.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

byte-string-mutability-mismatch.rs

compiletest: Make diagnostic kind mandatory on line annotations

2025-04-30 10:44:24 +03:00

byte-string-mutability-mismatch.stderr

compiletest: Make diagnostic kind mandatory on line annotations

2025-04-30 10:44:24 +03:00

check-struct-pat-fields-stability-issue-138319.rs

Pass precise HirId when calling check_stability

2025-03-14 14:51:58 +08:00

check-struct-pat-fields-stability-issue-138319.stderr

Pass precise HirId when calling check_stability

2025-03-14 14:51:58 +08:00

complexity_limit.rs

Rename pattern_complexity attr as pattern_complexity_limit.

2025-02-17 09:30:40 +11:00

complexity_limit.stderr

Add and update tests to use pattern_complexity

2024-03-03 13:10:15 +01:00

const-error-ice-issue-148542.rs

Add regression test for ice

2025-11-06 09:41:16 +08:00

const-error-ice-issue-148542.stderr

Add regression test for ice

2025-11-06 09:41:16 +08:00

cross-crate-enum-pattern.rs

Move some tests out of tests/ui

2025-05-03 17:22:52 +02:00

enum-struct-pattern-mismatch-15896.rs

comments

2025-08-09 16:27:20 +05:00

enum-struct-pattern-mismatch-15896.stderr

comments

2025-08-09 16:27:20 +05:00

fn-in-pat.rs

Move 100 entries from tests/ui into subdirs

2024-05-20 19:55:59 -07:00

fn-in-pat.stderr

Update tests for new TRPL chapter order

2024-11-23 08:57:25 -07:00

for-loop-bad-item.rs

…

for-loop-bad-item.stderr

…

ignore-all-the-things.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

inc-range-pat.rs

Move 100 entries from tests/ui into subdirs

2024-05-20 19:55:59 -07:00

incorrect-placement-of-pattern-modifiers.fixed

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

incorrect-placement-of-pattern-modifiers.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

incorrect-placement-of-pattern-modifiers.stderr

Show diff suggestion format on verbose replacement

2025-02-10 20:21:39 +00:00

integer-range-binding.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

issue-6449.rs

Use non-2015 edition paths in tests that do not test for their resolution

2025-06-03 13:35:31 +02:00

issue-8351-1.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

issue-8351-2.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

issue-10392.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

issue-11577.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

issue-12582.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

issue-14221.rs

Use non-2015 edition paths in tests that do not test for their resolution

2025-06-03 13:35:31 +02:00

issue-14221.stderr

Reword the "unreachable pattern" explanations

2024-08-19 21:39:57 +02:00

issue-15080.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

issue-17718-patterns.rs

…

issue-17718-patterns.stderr

…

issue-22546.rs

Check assoc consts and tys later like assoc fns

2025-07-10 23:39:54 +08:00

issue-27320.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

issue-28992-empty.rs

Move some tests

2024-02-09 15:43:08 -03:00

issue-28992-empty.stderr

Move some tests

2024-02-09 15:43:08 -03:00

issue-52240.rs

…

issue-52240.stderr

Provide more context when mutably borrowing an imutable borrow

2025-11-09 22:14:48 +00:00

issue-66270-pat-struct-parser-recovery.rs

…

issue-66270-pat-struct-parser-recovery.stderr

Show number in error message even for one error

2023-11-24 19:15:52 +01:00

issue-67037-pat-tup-scrut-ty-diff-less-fields.rs

…

issue-67037-pat-tup-scrut-ty-diff-less-fields.stderr

…

issue-67776-match-same-name-enum-variant-refs.rs

…

issue-67776-match-same-name-enum-variant-refs.stderr

…

issue-72565.rs

…

issue-72565.stderr

Specify type kind of constant that can't be used in patterns

2024-12-04 20:29:36 +00:00

issue-72574-1.rs

…

issue-72574-1.stderr

Show diff suggestion format on verbose replacement

2025-02-10 20:21:39 +00:00

issue-72574-2.rs

…

issue-72574-2.stderr

Show diff suggestion format on verbose replacement

2025-02-10 20:21:39 +00:00

issue-74539.rs

…

issue-74539.stderr

Show diff suggestion format on verbose replacement

2025-02-10 20:21:39 +00:00

issue-74702.rs

…

issue-74702.stderr

Show diff suggestion format on verbose replacement

2025-02-10 20:21:39 +00:00

issue-74954.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

issue-80186-mut-binding-help-suggestion.rs

…

issue-80186-mut-binding-help-suggestion.stderr

Show diff suggestion format on verbose replacement

2025-02-10 20:21:39 +00:00

issue-88074-pat-range-type-inference-err.rs

…

issue-88074-pat-range-type-inference-err.stderr

…

issue-88074-pat-range-type-inference.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

issue-92074-macro-ice.rs

…

issue-92074-macro-ice.stderr

Change wording

2024-04-29 14:53:38 +02:00

issue-94866.rs

…

issue-94866.stderr

Show number in error message even for one error

2023-11-24 19:15:52 +01:00

issue-95878.rs

…

issue-95878.stderr

Show number in error message even for one error

2023-11-24 19:15:52 +01:00

issue-106552.rs

…

issue-106552.stderr

Update tests for new TRPL chapter order

2024-11-23 08:57:25 -07:00

issue-106862.fixed

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

issue-106862.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

issue-106862.stderr

…

issue-110508.rs

Handle all PatExprs in dead code analysis

2025-01-29 15:45:13 +00:00

issue-115599.rs

Add additional context for non-sructural type constant used in pattern

2024-12-04 20:29:36 +00:00

issue-115599.stderr

fix: Add col separator before secondary messages with no source

2025-08-26 15:15:17 -06:00

issue-117626.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

missing_lifetime.rs

Use non-2015 edition paths in tests that do not test for their resolution

2025-06-03 13:35:31 +02:00

missing_lifetime.stderr

Avoid follow-up errors on erroneous patterns

2024-06-13 06:14:32 +00:00

mut_preserve_binding_mode_2021.rs

Gate implicit mutable by-reference bindings behind mut ref

2024-05-15 16:55:54 -04:00

mut_preserve_binding_mode_2021.stderr

Fix tests

2024-04-15 23:27:22 -04:00

mut_preserve_binding_mode_2024.rs

Stabilize the 2024 edition

2024-11-22 11:12:15 -08:00

mut-pattern-of-immutable-borrow.rs

Provide more context when mutably borrowing an imutable borrow

2025-11-09 22:14:48 +00:00

mut-pattern-of-immutable-borrow.stderr

Provide more context when mutably borrowing an imutable borrow

2025-11-09 22:14:48 +00:00

mut-ref-mut-2021.rs

Feature gate

2024-03-27 11:20:28 -04:00

mut-ref-mut-2021.stderr

Better span for "make binding mutable" suggestion

2024-07-04 02:02:21 +00:00

no-match-tuple-variant-self-ctor.rs

Validate that we're only matching on unit struct for path pattern

2024-03-22 20:53:42 -04:00

no-match-tuple-variant-self-ctor.struct_.stderr

Validate that we're only matching on unit struct for path pattern

2024-03-22 20:53:42 -04:00

no-match-tuple-variant-self-ctor.tuple.stderr

Validate that we're only matching on unit struct for path pattern

2024-03-22 20:53:42 -04:00

no-patterns-in-args-2.rs

Move 100 entries from tests/ui into subdirs

2024-05-20 19:55:59 -07:00

no-patterns-in-args-2.stderr

Move 100 entries from tests/ui into subdirs

2024-05-20 19:55:59 -07:00

no-patterns-in-args.rs

Move 100 entries from tests/ui into subdirs

2024-05-20 19:55:59 -07:00

no-patterns-in-args.stderr

Move 100 entries from tests/ui into subdirs

2024-05-20 19:55:59 -07:00

non-constant-in-const-path.rs

…

non-constant-in-const-path.stderr

Tweak output of some const pattern errors

2024-12-04 20:29:36 +00:00

non-structural-match-types-cycle-err.rs

borrowck typeck children together with their parent

2025-04-08 00:34:40 +02:00

non-structural-match-types-cycle-err.stderr

borrowck typeck children together with their parent

2025-04-08 00:34:40 +02:00

non-structural-match-types.rs

borrowck typeck children together with their parent

2025-04-08 00:34:40 +02:00

non-structural-match-types.stderr

borrowck typeck children together with their parent

2025-04-08 00:34:40 +02:00

normalize-ty-in-range.rs

Structurally resolve in check_ref_cast and calc_adjust_mode

2025-05-08 15:00:17 +00:00

overflowing-literals.rs

Uniformly handle HIR literals in visitors and lints

2025-02-05 11:28:24 +00:00

overflowing-literals.stderr

Uniformly handle HIR literals in visitors and lints

2025-02-05 11:28:24 +00:00

pat-shadow-in-nested-binding.rs

…

pat-shadow-in-nested-binding.stderr

Show number in error message even for one error

2023-11-24 19:15:52 +01:00

pat-struct-field-expr-has-type.rs

…

pat-struct-field-expr-has-type.stderr

Show number in error message even for one error

2023-11-24 19:15:52 +01:00

pat-tuple-bad-type.rs

…

pat-tuple-bad-type.stderr

…

pat-tuple-field-count-cross.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

pat-tuple-field-count-cross.stderr

Trim suggestion parts to the subset that is purely additive

2025-02-14 00:44:10 -08:00

pat-tuple-overfield.rs

…

pat-tuple-overfield.stderr

Trim suggestion parts to the subset that is purely additive

2025-02-14 00:44:10 -08:00

pat-tuple-underfield.rs

…

pat-tuple-underfield.stderr

Show diff suggestion format on verbose replacement

2025-02-10 20:21:39 +00:00

pat-type-err-formal-param.rs

…

pat-type-err-formal-param.stderr

Show number in error message even for one error

2023-11-24 19:15:52 +01:00

pat-type-err-let-stmt.rs

…

pat-type-err-let-stmt.stderr

…

patkind-litrange-no-expr.rs

Rename PatKind::Lit to Expr

2025-01-08 07:34:59 +00:00

patkind-litrange-no-expr.stderr

…

patkind-ref-binding-issue-114896.fixed

UI tests: add missing diagnostic kinds where possible

2025-04-08 23:06:31 +03:00

patkind-ref-binding-issue-114896.rs

UI tests: add missing diagnostic kinds where possible

2025-04-08 23:06:31 +03:00

patkind-ref-binding-issue-114896.stderr

Trim suggestion parts to the subset that is purely additive

2025-02-14 00:44:10 -08:00

patkind-ref-binding-issue-122415.fixed

Fix incorrect mutable suggestion information for binding in ref pattern.

2024-03-19 12:28:23 +08:00

patkind-ref-binding-issue-122415.rs

Fix incorrect mutable suggestion information for binding in ref pattern.

2024-03-19 12:28:23 +08:00

patkind-ref-binding-issue-122415.stderr

Trim suggestion parts to the subset that is purely additive

2025-02-14 00:44:10 -08:00

pattern-bad-ref-box-order.fixed

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

pattern-bad-ref-box-order.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

pattern-bad-ref-box-order.stderr

Show diff suggestion format on verbose replacement

2025-02-10 20:21:39 +00:00

pattern-binding-disambiguation.rs

Continue to borrowck even if there were previous errors

2024-02-08 08:10:43 +00:00

pattern-binding-disambiguation.stderr

Update tests for new TRPL chapter order

2024-11-23 08:57:25 -07:00

pattern-error-continue.rs

compiletest: Make diagnostic kind mandatory on line annotations

2025-04-30 10:44:24 +03:00

pattern-error-continue.stderr

compiletest: Make diagnostic kind mandatory on line annotations

2025-04-30 10:44:24 +03:00

pattern-ident-path-generics.rs

…

pattern-ident-path-generics.stderr

Show number in error message even for one error

2023-11-24 19:15:52 +01:00

pattern-match-arc-move.rs

cleaned up some tests

2025-06-03 07:38:06 +05:00

pattern-match-invalid-variant.rs

cleaned up some tests

2025-06-03 07:38:06 +05:00

pattern-match-invalid-variant.stderr

cleaned up some tests

2025-06-03 07:38:06 +05:00

pattern-tyvar-2.rs

…

pattern-tyvar-2.stderr

Make diagnostics clearer for binop-related errors in foreign crates

2025-10-18 01:20:25 +00:00

pattern-tyvar.rs

…

pattern-tyvar.stderr

Show number in error message even for one error

2023-11-24 19:15:52 +01:00

patterns-dont-match-nt-statement.rs

Don't make pattern nonterminals match statement nonterminals

2024-08-26 18:30:15 -04:00

premature-match-scrutinee-temporary-drop-10683.rs

comments

2025-07-25 20:38:54 +05:00

range-pattern-meant-to-be-slice-rest-pattern.rs

Stabilize exclusive_range

2024-05-02 19:42:31 -04:00

range-pattern-meant-to-be-slice-rest-pattern.stderr

Show diff suggestion format on verbose replacement

2025-02-10 20:21:39 +00:00

refutable-pattern-for-loop-15381.rs

comments

2025-08-09 16:27:20 +05:00

refutable-pattern-for-loop-15381.stderr

comments

2025-08-09 16:27:20 +05:00

rest-pat-semantic-disallowed.rs

…

rest-pat-semantic-disallowed.stderr

…

rest-pat-syntactic.rs

Use cfg(false) in UI tests

2025-04-03 21:41:58 +00:00

rest-pat-syntactic.stderr

Bless tests

2024-01-13 12:46:58 -05:00

self-ctor-133272.rs

Re-delay a resolve bug

2024-11-21 18:40:36 +08:00

self-ctor-133272.stderr

Re-delay a resolve bug

2024-11-21 18:40:36 +08:00

size-and-align.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

skipped-ref-pats-issue-125058.rs

Stabilize the 2024 edition

2024-11-22 11:12:15 -08:00

skipped-ref-pats-issue-125058.stderr

bless tests with new lint messages

2025-08-19 21:27:10 +02:00

slice-array-infer.rs

stabilize gai

2025-06-11 15:30:15 +01:00

slice-pattern-recursion-15104.rs

comments

2025-08-09 16:27:20 +05:00

slice-pattern-refutable.rs

…

slice-pattern-refutable.stderr

Show diff suggestion format on verbose replacement

2025-02-10 20:21:39 +00:00

slice-patterns-ambiguity.rs

…

slice-patterns-ambiguity.stderr

Show diff suggestion format on verbose replacement

2025-02-10 20:21:39 +00:00

slice-patterns-irrefutable.rs

…

slice-patterns-irrefutable.stderr

Show number in error message even for one error

2023-11-24 19:15:52 +01:00

slice-patterns-nested.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

static-binding-shadow-16149.rs

comments

2025-08-09 16:27:20 +05:00

static-binding-shadow-16149.stderr

comments

2025-08-09 16:27:20 +05:00

struct-field-duplicate-binding-15260.rs

comments

2025-08-09 16:27:20 +05:00

struct-field-duplicate-binding-15260.stderr

comments

2025-08-09 16:27:20 +05:00

struct-mismatch-destructure-14541.rs

comments

2025-08-05 19:34:46 +05:00

struct-mismatch-destructure-14541.stderr

comments

2025-08-05 19:34:46 +05:00

struct-parser-recovery-issue-126344.rs

report pat no field error no recoverd struct variant

2024-07-11 00:18:47 +08:00

struct-parser-recovery-issue-126344.stderr

report pat no field error no recoverd struct variant

2024-07-11 00:18:47 +08:00

struct-pattern-on-non-struct-resolve-error.rs

modify test to side-step platform-dependent stderr output

2025-01-08 00:13:43 +00:00

struct-pattern-on-non-struct-resolve-error.stderr

modify test to side-step platform-dependent stderr output

2025-01-08 00:13:43 +00:00

struct-pattern-with-missing-fields-resolve-error.rs

Add check for missing fields in enum variant pattern

2025-01-08 00:10:16 +00:00

struct-pattern-with-missing-fields-resolve-error.stderr

Add check for missing fields in enum variant pattern

2025-01-08 00:10:16 +00:00

struct-wildcard-pattern-14308.rs

comments

2025-08-05 19:34:46 +05:00

suggest-adding-appropriate-missing-pattern-excluding-comments.fixed

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

suggest-adding-appropriate-missing-pattern-excluding-comments.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

suggest-adding-appropriate-missing-pattern-excluding-comments.stderr

Show number in error message even for one error

2023-11-24 19:15:52 +01:00

tuple-enum-match-15129.rs

comments

2025-08-09 16:27:20 +05:00

type_mismatch.rs

Avoid follow-up errors on erroneous patterns

2024-06-13 06:14:32 +00:00

type_mismatch.stderr

Avoid follow-up errors on erroneous patterns

2024-06-13 06:14:32 +00:00

uninit-trivial.rs

Do not optimize out SwitchInt before borrowck, or if Zmir-preserve-ub

2025-04-08 21:05:20 +00:00

uninit-trivial.stderr

Do not optimize out SwitchInt before borrowck, or if Zmir-preserve-ub

2025-04-08 21:05:20 +00:00

unit-pattern-matching-in-function-argument-7519.rs

Rehome tests/ui/issues/ tests [2/?]

2025-08-02 15:29:16 -04:00

unit-type-struct-pattern-mismatch-16401.rs

comments

2025-08-09 16:27:20 +05:00

unit-type-struct-pattern-mismatch-16401.stderr

comments

2025-08-09 16:27:20 +05:00

unit-variant-pattern-matching-29383.rs

Rehome tests/ui/issues/ tests [4/?]

2025-08-10 11:54:15 -04:00

unit-variant-pattern-matching-29383.stderr

Rehome tests/ui/issues/ tests [4/?]

2025-08-10 11:54:15 -04:00

unused-parameters-const-pattern.rs

Add test/comment about const patterns with unused params

2025-05-22 12:52:46 +01:00