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Check pattern refutability the same way exhaustiveness is checked

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This commit is contained in:
Jakub Wieczorek 2014-05-31 15:13:46 +02:00
parent 6750eb5a05
commit f5e513b2b2
3 changed files with 44 additions and 95 deletions
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32
src/test/compile-fail/precise-refutable-pattern-errors.rs
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@ -1,32 +0,0 @@
// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
fn func(
(
1, //~ ERROR refutable pattern in function argument
(
Some( //~ ERROR refutable pattern in function argument
1), // nested, so no warning.
2..3 //~ ERROR refutable pattern in function argument
)
): (int, (Option<int>, int))
) {}
fn main() {
let (
1, //~ ERROR refutable pattern in local binding
(
Some( //~ ERROR refutable pattern in local binding
1), // nested, so no warning.
2..3 //~ ERROR refutable pattern in local binding
)
) = (1, (None, 2));
}

18
src/test/compile-fail/refutable-pattern-errors.rs Normal file
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@ -0,0 +1,18 @@
// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
fn func((1, (Some(1), 2..3)): (int, (Option<int>, int))) { }
//~^ ERROR refutable pattern in function argument
fn main() {
let (1, (Some(1), 2..3)) = (1, (None, 2));
//~^ ERROR refutable pattern in local binding
}