828bfb2c61
Code like this is fixed now:
```
fn foo(p: [u8, ..4]) {
match p {
[a, b, c, d] => {}
};
}
```
Invalid constructors are not reported as errors yet:
```
fn foo(p: [u8, ..4]) {
match p {
[_, _, _] => {} // this should be error
[_, _, _, _, _, .._] => {} // and this
_ => {}
}
}
```
Issue #8311 is partially fixed by this commit. Fixed-length arrays in
let statement are not yet allowed:
```
let [a, b, c] = [1, 2, 3]; // still fails
```
29 lines
592 B
Rust
29 lines
592 B
Rust
fn a() {
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let x = [1, 2, 3];
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match x {
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[1, 2, 4] => ::std::util::unreachable(),
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[0, 2, 3, .._] => ::std::util::unreachable(),
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[0, .._, 3] => ::std::util::unreachable(),
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[0, .._] => ::std::util::unreachable(),
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[1, 2, 3] => (),
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[_, _, _] => ::std::util::unreachable(),
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}
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match x {
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[.._] => (),
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}
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match x {
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[_, _, _, .._] => (),
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}
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match x {
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[a, b, c] => {
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assert_eq!(1, a);
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assert_eq!(2, b);
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assert_eq!(3, c);
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}
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}
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}
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pub fn main() {
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a();
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}
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