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Add a test for an ICE with closure captures in erroneous code

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This commit is contained in:
Jacob Adam
2026-04-04 17:58:42 +01:00
parent 61807c5006
commit 028e00b495
2 changed files with 55 additions and 0 deletions
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tests/ui/closures/closure-2021-captures-lint-field-projection-ice-119382.rs
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//! Regression test for <https://github.com/rust-lang/rust/issues/119382>.
//!
//! The `-Wrust-2021-incompatible-closure-captures` lint used to ICE
//! when applied to erroneous code.
//@ edition: 2018
//@ compile-flags: -Wrust-2021-incompatible-closure-captures
struct V(&mut i32);
//~^ ERROR missing lifetime specifier
fn nested(v: &V) {
|| {
V(_somename) = v;
//~^ ERROR cannot find value `_somename` in this scope
//~| ERROR mismatched types
v.0 = 0;
};
}
fn main() {}
tests/ui/closures/closure-2021-captures-lint-field-projection-ice-119382.stderr
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error[E0106]: missing lifetime specifier
--> $DIR/closure-2021-captures-lint-field-projection-ice-119382.rs:9:10
|
LL | struct V(&mut i32);
| ^ expected named lifetime parameter
|
help: consider introducing a named lifetime parameter
|
LL | struct V<'a>(&'a mut i32);
| ++++ ++
error[E0425]: cannot find value `_somename` in this scope
--> $DIR/closure-2021-captures-lint-field-projection-ice-119382.rs:14:11
|
LL | V(_somename) = v;
| ^^^^^^^^^ not found in this scope
error[E0308]: mismatched types
--> $DIR/closure-2021-captures-lint-field-projection-ice-119382.rs:14:9
|
LL | V(_somename) = v;
| ^^^^^^^^^^^^ - this expression has type `&V`
| |
| expected `&V`, found `V`
|
help: consider dereferencing to access the inner value using the `Deref` trait
|
LL | V(_somename) = &*v;
| ++
error: aborting due to 3 previous errors
Some errors have detailed explanations: E0106, E0308, E0425.
For more information about an error, try `rustc --explain E0106`.