2013-05-22 05:54:35 -05:00
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// Test that we do not permit moves from &[] matched by a vec pattern.
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2013-07-02 14:47:32 -05:00
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#[deriving(Clone)]
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2013-05-22 05:54:35 -05:00
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struct Foo {
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string: ~str
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}
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pub fn main() {
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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 13:07:24 -05:00
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let x = ~[
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2013-05-22 05:54:35 -05:00
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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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2013-06-20 14:11:20 -05:00
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[_, ..tail] => {
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2013-05-22 05:54:35 -05:00
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match tail {
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[Foo { string: a }, Foo { string: b }] => {
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//~^ ERROR cannot move out of dereference of & pointer
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//~^^ ERROR cannot move out of dereference of & pointer
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}
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_ => {
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2013-09-19 00:04:03 -05:00
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unreachable!();
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2013-05-22 05:54:35 -05:00
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}
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}
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2013-07-02 14:47:32 -05:00
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let z = tail[0].clone();
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2013-10-21 15:08:31 -05:00
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info!("{:?}", z);
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2013-05-22 05:54:35 -05:00
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}
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_ => {
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2013-09-19 00:04:03 -05:00
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unreachable!();
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2013-05-22 05:54:35 -05:00
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}
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}
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}
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