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//@ check-fail
//@ edition: 2024
#![deny(rust_2024_incompatible_pat)]
fn main() {}
#[derive(Copy, Clone)]
struct T;
struct Foo {
f: &'static (u8,),
}
macro_rules! test_pat_on_type {
($($tt:tt)*) => {
const _: () = {
// Define a new function to ensure all cases are tested independently.
fn foo($($tt)*) {}
};
};
}
test_pat_on_type![(&x,): &(T,)]; //~ ERROR mismatched types
test_pat_on_type![(&x,): &(&T,)]; //~ ERROR reference patterns may only be written when the default binding mode is `move`
test_pat_on_type![(&x,): &(&mut T,)]; //~ ERROR mismatched types
test_pat_on_type![(&mut x,): &(&T,)]; //~ ERROR mismatched types
test_pat_on_type![(&mut x,): &(&mut T,)]; //~ ERROR reference patterns may only be written when the default binding mode is `move`
test_pat_on_type![(&x,): &&mut &(T,)]; //~ ERROR mismatched types
test_pat_on_type![Foo { f: (&x,) }: Foo]; //~ ERROR mismatched types
test_pat_on_type![Foo { f: (&x,) }: &mut Foo]; //~ ERROR mismatched types
test_pat_on_type![Foo { f: &(x,) }: &Foo]; //~ ERROR reference patterns may only be written when the default binding mode is `move`
test_pat_on_type![(mut x,): &(T,)]; //~ ERROR binding modifiers may only be written when the default binding mode is `move`
test_pat_on_type![(ref x,): &(T,)]; //~ ERROR binding modifiers may only be written when the default binding mode is `move`
test_pat_on_type![(ref mut x,): &mut (T,)]; //~ ERROR binding modifiers may only be written when the default binding mode is `move`
fn get<X>() -> X {
unimplemented!()
}
// Make sure this works even when the underlying type is inferred. This test passes on rust stable.
fn infer<X: Copy>() -> X {
match &get() {
(&x,) => x, //~ ERROR reference patterns may only be written when the default binding mode is `move`
}
}
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