granite-rust/compiler/rustc_const_eval
Waffle 6ec7255d7b Highlight the const function if error happened because of a bound on the impl block
Currently, for the following code, the compiler produces the errors like the
following error:
```rust
struct Type<T>

impl<T: Clone> Type<T> {
	fn const f() {}
}
```
```text
error[E0658]: trait bounds other than `Sized` on const fn parameters are unstable
 --> ./test.rs:3:6
  |
3 | impl<T: Clone> Type<T> {
  |      ^
  |
  = note: see issue  <https://github.com/rust-lang/rust/issues/57563> for more information
  = help: add `#![feature(const_fn_trait_bound)]` to the crate attributes to enable
```

This can be confusing (especially to newcomers) since the error mentions
"const fn parameters", but highlights only the impl.

This commits adds function highlighting, changing the error to the following:

```text
error[E0658]: trait bounds other than `Sized` on const fn parameters are unstable
 --> ./test.rs:3:6
  |
3 | impl<T: Clone> Type<T> {
  |      ^
4 |     pub const fn f() {}
  |     ---------------- function declared as const here
  |
  = note: see issue  <https://github.com/rust-lang/rust/issues/57563> for more information
  = help: add `#![feature(const_fn_trait_bound)]` to the crate attributes to enable
```
2021-09-13 16:36:14 +03:00
..
src Highlight the const function if error happened because of a bound on the impl block 2021-09-13 16:36:14 +03:00
Cargo.toml Rename rustc_mir to rustc_const_eval. 2021-09-07 20:46:26 +02:00