rust/tests/ui/borrowck/borrowck-move-out-from-array-use-no-overlap-match.rs
2024-02-16 20:02:50 +00:00

108 lines
1.9 KiB
Rust

//@ check-pass
// Due to #53114, which causes a "read" of the `_` patterns,
// the borrow-checker refuses this code, while it should probably be allowed.
// Once the bug is fixed, the test, which is derived from a
// passing test for `let` statements, should become check-pass.
fn array() -> [(String, String); 3] {
Default::default()
}
// Const Index + Const Index
fn move_out_from_begin_and_one_from_end() {
let a = array();
match a {
[_, _, _x] => {}
}
match a {
[.., ref _y, _] => {}
}
}
fn move_out_from_begin_field_and_end_field() {
let a = array();
match a {
[_, _, (_x, _)] => {}
}
match a {
[.., (_, ref _y)] => {}
}
}
// Const Index + Slice
fn move_out_by_const_index_and_subslice() {
let a = array();
match a {
[_x, _, _] => {}
}
match a {
[_, ref _y @ ..] => {}
}
}
fn move_out_by_const_index_end_and_subslice() {
let a = array();
match a {
[.., _x] => {}
}
match a {
[ref _y @ .., _] => {}
}
}
fn move_out_by_const_index_field_and_subslice() {
let a = array();
match a {
[(_x, _), _, _] => {}
}
match a {
[_, ref _y @ ..] => {}
}
}
fn move_out_by_const_index_end_field_and_subslice() {
let a = array();
match a {
[.., (_x, _)] => {}
}
match a {
[ref _y @ .., _] => {}
}
}
fn move_out_by_const_subslice_and_index_field() {
let a = array();
match a {
[_, _y @ ..] => {}
}
match a {
[(ref _x, _), _, _] => {}
}
}
fn move_out_by_const_subslice_and_end_index_field() {
let a = array();
match a {
[_y @ .., _] => {}
}
match a {
[.., (ref _x, _)] => {}
}
}
// Slice + Slice
fn move_out_by_subslice_and_subslice() {
let a = array();
match a {
[x @ .., _, _] => {}
}
match a {
[_, ref _y @ ..] => {}
}
}
fn main() {}