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
```
36 lines
930 B
Rust
36 lines
930 B
Rust
struct Foo {
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string: ~str
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}
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pub fn main() {
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let x = ~[
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Foo { string: ~"foo" },
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Foo { string: ~"bar" },
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Foo { string: ~"baz" }
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];
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match x {
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[ref first, ..tail] => {
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assert!(first.string == ~"foo");
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assert_eq!(tail.len(), 2);
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assert!(tail[0].string == ~"bar");
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assert!(tail[1].string == ~"baz");
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match tail {
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[Foo { _ }, _, Foo { _ }, ..tail] => {
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::std::util::unreachable();
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}
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[Foo { string: ref a }, Foo { string: ref b }] => {
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assert_eq!("bar", a.slice(0, a.len()));
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assert_eq!("baz", b.slice(0, b.len()));
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}
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_ => {
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::std::util::unreachable();
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}
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}
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}
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_ => {
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::std::util::unreachable();
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}
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}
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}
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