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