2016-11-29 15:10:26 +08:00
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#![deny(unreachable_patterns)]
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2015-03-26 18:34:27 -07:00
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Fix incorrect non-exhaustive matching for fixed length vecs
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
```
2013-08-07 22:07:24 +04:00
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fn a() {
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2015-01-31 17:23:42 +01:00
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let v = [1, 2, 3];
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Fix incorrect non-exhaustive matching for fixed length vecs
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
```
2013-08-07 22:07:24 +04:00
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match v {
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[_, _, _] => {}
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[_, _, _] => {} //~ ERROR unreachable pattern
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}
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match v {
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[_, 1, _] => {}
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[_, 1, _] => {} //~ ERROR unreachable pattern
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_ => {}
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}
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}
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fn main() {
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a();
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}
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