mirror of
https://github.com/rust-lang/rust
synced 2024-09-30 22:04:36 +00:00
55b4549602
Given the code
```rust
pub fn main() {
const y: i32 = 4;
let y: i32 = 3;
}
```
`y` in the let binding is actually interpreted as a constant pattern
and is not a new variable, causing confusing diagnostics about
refutable patterns in local binding.
This commit extends the note for type ascription as a constant pattern
to `AscribeUserType` patterns as well.
10 lines
198 B
Rust
10 lines
198 B
Rust
pub fn main() {
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const x: i32 = 4;
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let x: i32 = 3;
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//~^ ERROR refutable pattern in local binding
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const y: i32 = 3;
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let y = 4;
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//~^ ERROR refutable pattern in local binding
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}
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