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|
//@ run-pass
// Matching on a DST struct should not trigger an LLVM assertion.
struct Foo<T: ?Sized> {
a: i32,
inner: T
}
trait Get {
fn get(&self) -> i32;
}
impl Get for i32 {
fn get(&self) -> i32 {
*self
}
}
fn check_val(val: &Foo<[u8]>) {
match *val {
Foo { a, .. } => {
assert_eq!(a, 32);
}
}
}
fn check_dst_val(val: &Foo<[u8]>) {
match *val {
Foo { ref inner, .. } => {
assert_eq!(inner, [1, 2, 3]);
}
}
}
fn check_both(val: &Foo<[u8]>) {
match *val {
Foo { a, ref inner } => {
assert_eq!(a, 32);
assert_eq!(inner, [1, 2, 3]);
}
}
}
fn check_trait_obj(val: &Foo<dyn Get>) {
match *val {
Foo { a, ref inner } => {
assert_eq!(a, 32);
assert_eq!(inner.get(), 32);
}
}
}
fn main() {
let foo: &Foo<[u8]> = &Foo { a: 32, inner: [1, 2, 3] };
check_val(foo);
check_dst_val(foo);
check_both(foo);
let foo: &Foo<dyn Get> = &Foo { a: 32, inner: 32 };
check_trait_obj(foo);
}
|
