rust/src/test/run-pass/vec-tail-matching.rs

36 lines
871 B
Rust

struct Foo {
string: ~str
}
pub fn main() {
let x = [
Foo { string: ~"foo" },
Foo { string: ~"bar" },
Foo { string: ~"baz" }
];
match x {
[first, ..tail] => {
assert first.string == ~"foo";
assert tail.len() == 2;
assert tail[0].string == ~"bar";
assert tail[1].string == ~"baz";
match tail {
[Foo { _ }, _, Foo { _ }, ..tail] => {
::core::util::unreachable();
}
[Foo { string: a }, Foo { string: b }] => {
assert a == ~"bar";
assert b == ~"baz";
}
_ => {
::core::util::unreachable();
}
}
}
_ => {
::core::util::unreachable();
}
}
}