[rustc.git] / src / test / ui / rfc-2294-if-let-guard / run-pass.rs

// run-pass

#![feature(if_let_guard)]

enum Foo {
    Bar,
    Baz,
    Qux(u8),
}

fn bar(x: bool) -> Foo {
    if x { Foo::Baz } else { Foo::Bar }
}

fn baz(x: u8) -> Foo {
    if x % 2 == 0 { Foo::Bar } else { Foo::Baz }
}

fn qux(x: u8) -> Foo {
    Foo::Qux(x.rotate_left(1))
}

fn main() {
    match Some((true, 3)) {
        Some((x, _)) if let Foo::Bar = bar(x) => panic!(),
        Some((_, x)) if let Foo::Baz = baz(x) => {},
        _ => panic!(),
    }
    match Some(42) {
        Some(x) if let Foo::Qux(y) = qux(x) => assert_eq!(y, 84),
        _ => panic!(),
    }
}
Commit	Line	Data
fc512014 XL	1	// run-pass
	2
	3	#![feature(if_let_guard)]
fc512014 XL	4
	5	enum Foo {
	6	Bar,
	7	Baz,
	8	Qux(u8),
	9	}
	10
	11	fn bar(x: bool) -> Foo {
	12	if x { Foo::Baz } else { Foo::Bar }
	13	}
	14
	15	fn baz(x: u8) -> Foo {
	16	if x % 2 == 0 { Foo::Bar } else { Foo::Baz }
	17	}
	18
	19	fn qux(x: u8) -> Foo {
	20	Foo::Qux(x.rotate_left(1))
	21	}
	22
	23	fn main() {
	24	match Some((true, 3)) {
	25	Some((x, _)) if let Foo::Bar = bar(x) => panic!(),
	26	Some((_, x)) if let Foo::Baz = baz(x) => {},
	27	_ => panic!(),
	28	}
	29	match Some(42) {
	30	Some(x) if let Foo::Qux(y) = qux(x) => assert_eq!(y, 84),
	31	_ => panic!(),
	32	}
	33	}