rust/src/test/compile-fail/borrowck-vec-pattern-tail-element-loan.rs

fn a() -> &int {
    let vec = ~[1, 2, 3, 4];
    let tail = match vec {
        [_a, ..tail] => &tail[0], //~ ERROR borrowed value does not live long enough
        _ => fail!("foo")
    };
    tail
}

fn main() {
    let fifth = a();
    printfln!("%d", *fifth);
}
Add more tests 2012-12-15 23:13:55 +00:00			`fn a() -> &int {`
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 18:07:24 +00:00			`let vec = ~[1, 2, 3, 4];`
new borrow checker (mass squash) 2013-03-15 19:24:24 +00:00			`let tail = match vec {`
			`[_a, ..tail] => &tail[0], //~ ERROR borrowed value does not live long enough`
Use static string with fail!() and remove fail!(fmt!()) fail!() used to require owned strings but can handle static strings now. Also, it can pass its arguments to fmt!() on its own, no need for the caller to call fmt!() itself. 2013-05-05 22:18:51 +00:00			`_ => fail!("foo")`
Add more tests 2012-12-15 23:13:55 +00:00			`};`
tests/tutorials: Get rid of `move`. 2013-02-15 10:44:18 +00:00			`tail`
Add more tests 2012-12-15 23:13:55 +00:00			`}`

			`fn main() {`
			`let fifth = a();`
Change 'print(fmt!(...))' to printf!/printfln! in src/test/ 2013-07-22 16:04:51 +00:00			`printfln!("%d", *fifth);`
Add more tests 2012-12-15 23:13:55 +00:00			`}`