mirror of https://github.com/rust-lang/rust
44 lines
1.7 KiB
Rust
44 lines
1.7 KiB
Rust
// This test ensures that the "already bound identifier in a product pattern"
|
|
// correctly accounts for or-patterns.
|
|
|
|
enum E<T> { A(T, T), B(T) }
|
|
|
|
use E::*;
|
|
|
|
fn main() {
|
|
let (a, a) = (0, 1); // Standard duplication without an or-pattern.
|
|
//~^ ERROR identifier `a` is bound more than once in the same pattern
|
|
|
|
let (a, A(a, _) | B(a)) = (0, A(1, 2));
|
|
//~^ ERROR identifier `a` is bound more than once in the same pattern
|
|
//~| ERROR identifier `a` is bound more than once in the same pattern
|
|
|
|
let (A(a, _) | B(a), a) = (A(0, 1), 2);
|
|
//~^ ERROR identifier `a` is bound more than once in the same pattern
|
|
|
|
let (A(a, a) | B(a)) = A(0, 1);
|
|
//~^ ERROR identifier `a` is bound more than once in the same pattern
|
|
|
|
let (B(a) | A(a, a)) = A(0, 1);
|
|
//~^ ERROR identifier `a` is bound more than once in the same pattern
|
|
|
|
match A(0, 1) {
|
|
B(a) | A(a, a) => {} // Let's ensure `match` has no funny business.
|
|
//~^ ERROR identifier `a` is bound more than once in the same pattern
|
|
}
|
|
|
|
let (B(A(a, _) | B(a)) | A(a, A(a, _) | B(a))) = B(B(1));
|
|
//~^ ERROR identifier `a` is bound more than once in the same pattern
|
|
//~| ERROR identifier `a` is bound more than once in the same pattern
|
|
//~| ERROR mismatched types
|
|
|
|
let (B(_) | A(A(a, _) | B(a), A(a, _) | B(a))) = B(B(1));
|
|
//~^ ERROR identifier `a` is bound more than once in the same pattern
|
|
//~| ERROR identifier `a` is bound more than once in the same pattern
|
|
//~| ERROR variable `a` is not bound in all patterns
|
|
|
|
let (B(A(a, _) | B(a)) | A(A(a, _) | B(a), A(a, _) | B(a))) = B(B(1));
|
|
//~^ ERROR identifier `a` is bound more than once in the same pattern
|
|
//~| ERROR identifier `a` is bound more than once in the same pattern
|
|
}
|