nordic-dev.net/rust
nordic-dev.net/rust
2
0
Fork 0
mirror of https://github.com/rust-lang/rust.git synced 2025-06-04 19:29:07 +00:00
Code Issues Packages Projects Releases Wiki Activity
c5c05c2528
rust/tests/ui/consts/match_ice.stderr

Ignoring revisions in .git-blame-ignore-revs. Click here to bypass and see the normal blame view.

17 lines
504 B
Plaintext
Raw Normal View History

Add additional context for non-sructural type constant used in pattern - Point at type that should derive `PartialEq` to be structural. - Point at manual `impl PartialEq`, explaining that it is not sufficient to be structural. ``` error: constant of non-structural type `MyType` in a pattern --> $DIR/const-partial_eq-fallback-ice.rs:14:12 | LL | struct MyType; | ------------- `MyType` must be annotated with `#[derive(PartialEq)]` to be usable in patterns ... LL | const CONSTANT: &&MyType = &&MyType; | ------------------------ constant defined here ... LL | if let CONSTANT = &&MyType { | ^^^^^^^^ constant of non-structural type | note: the `PartialEq` trait must be derived, manual `impl`s are not sufficient; see https://doc.rust-lang.org/stable/std/marker/trait.StructuralPartialEq.html for details --> $DIR/const-partial_eq-fallback-ice.rs:5:1 | LL | impl PartialEq<usize> for MyType { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ```
2024-11-20 04:30:35 +00:00
error: constant of non-structural type `S` in a pattern
Make sure we don't hide errors just because a lint has been emitted
2020-09-23 15:52:37 +00:00
--> $DIR/match_ice.rs:11:9
Use precise errors during const to pat conversion instead of a catch-all on the main constant
2020-09-20 15:22:33 +00:00
|
Add additional context for non-sructural type constant used in pattern - Point at type that should derive `PartialEq` to be structural. - Point at manual `impl PartialEq`, explaining that it is not sufficient to be structural. ``` error: constant of non-structural type `MyType` in a pattern --> $DIR/const-partial_eq-fallback-ice.rs:14:12 | LL | struct MyType; | ------------- `MyType` must be annotated with `#[derive(PartialEq)]` to be usable in patterns ... LL | const CONSTANT: &&MyType = &&MyType; | ------------------------ constant defined here ... LL | if let CONSTANT = &&MyType { | ^^^^^^^^ constant of non-structural type | note: the `PartialEq` trait must be derived, manual `impl`s are not sufficient; see https://doc.rust-lang.org/stable/std/marker/trait.StructuralPartialEq.html for details --> $DIR/const-partial_eq-fallback-ice.rs:5:1 | LL | impl PartialEq<usize> for MyType { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ```
2024-11-20 04:30:35 +00:00
LL | struct S;
| -------- `S` must be annotated with `#[derive(PartialEq)]` to be usable in patterns
...
On `const` pattern errors, point at the `const` item definition Centralize emitting an error in `const_to_pat` so that all errors from that evaluating a `const` in a pattern can add addditional information. With this, now point at the `const` item's definition: ``` error[E0158]: constant pattern depends on a generic parameter --> $DIR/associated-const-type-parameter-pattern.rs:20:9 | LL | pub trait Foo { | ------------- LL | const X: EFoo; | ------------- constant defined here ... LL | A::X => println!("A::X"), | ^^^^ ```
2024-11-20 02:15:21 +00:00
LL | const C: &S = &S;
| ----------- constant defined here
LL | match C {
Make sure we don't hide errors just because a lint has been emitted
2020-09-23 15:52:37 +00:00
LL | C => {}
Add additional context for non-sructural type constant used in pattern - Point at type that should derive `PartialEq` to be structural. - Point at manual `impl PartialEq`, explaining that it is not sufficient to be structural. ``` error: constant of non-structural type `MyType` in a pattern --> $DIR/const-partial_eq-fallback-ice.rs:14:12 | LL | struct MyType; | ------------- `MyType` must be annotated with `#[derive(PartialEq)]` to be usable in patterns ... LL | const CONSTANT: &&MyType = &&MyType; | ------------------------ constant defined here ... LL | if let CONSTANT = &&MyType { | ^^^^^^^^ constant of non-structural type | note: the `PartialEq` trait must be derived, manual `impl`s are not sufficient; see https://doc.rust-lang.org/stable/std/marker/trait.StructuralPartialEq.html for details --> $DIR/const-partial_eq-fallback-ice.rs:5:1 | LL | impl PartialEq<usize> for MyType { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ```
2024-11-20 04:30:35 +00:00
| ^ constant of non-structural type
Add notes to non-structural const in pattern error message
2023-03-27 14:14:08 +00:00
|
remove StructuralEq trait
2023-09-26 07:39:41 +00:00
= note: see https://doc.rust-lang.org/stable/std/marker/trait.StructuralPartialEq.html for details
Add regression test
2019-01-14 18:51:00 +00:00
Show number in error message even for one error Co-authored-by: Adrian <adrian.iosdev@gmail.com>
2023-11-21 15:44:16 +00:00
error: aborting due to 1 previous error
Add regression test
2019-01-14 18:51:00 +00:00
Reference in New Issue Copy Permalink