61 lines
1.1 KiB
Rust
61 lines
1.1 KiB
Rust
// 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<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<Get> = &Foo { a: 32, inner: 32 };
|
|
check_trait_obj(foo);
|
|
}
|