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// check-pass
// Test `Copy` bindings in the rhs of `@` patterns.
#![allow(dropping_copy_types)]
#[derive(Copy, Clone)]
struct C;
fn mk_c() -> C { C }
#[derive(Copy, Clone)]
struct P<A, B>(A, B);
enum E<A, B> { L(A), R(B) }
fn main() {
let a @ b @ c @ d = C;
let a @ (b, c) = (C, mk_c());
let a @ P(b, P(c, d)) = P(mk_c(), P(C, C));
let a @ [b, c] = [C, C];
let a @ [b, .., c] = [C, mk_c(), C];
let a @ [b, mid @ .., c] = [C, mk_c(), C];
let a @ &(b, c) = &(C, C);
let a @ &(b, &P(c, d)) = &(mk_c(), &P(C, C));
fn foo(a @ [b, mid @ .., c]: [C; 3]) {}
use self::E::*;
match L(C) {
L(a) | R(a) => {
let a: C = a;
drop(a);
drop(a);
}
}
match R(&L(&mk_c())) {
L(L(&a)) | L(R(&a)) | R(L(&a)) | R(R(&a)) => {
let a: C = a;
drop(a);
drop(a);
}
}
match Ok(mk_c()) {
Ok(ref a @ b) | Err(b @ ref a) => {
let _: &C = a;
let _: C = b;
}
}
}
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