blob: aaf1edb6fe6e4b97c0982fec14121089dfafe006 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
|
// run-pass
#![warn(pointer_structural_match)]
type Func = fn(usize, usize) -> usize;
fn foo(a: usize, b: usize) -> usize { a + b }
fn bar(a: usize, b: usize) -> usize { a * b }
fn test(x: usize) -> Func {
if x % 2 == 0 { foo }
else { bar }
}
const FOO: Func = foo;
const BAR: Func = bar;
fn main() {
match test(std::env::consts::ARCH.len()) {
FOO => println!("foo"), //~ WARN behave unpredictably
//~^ WARN will become a hard error
BAR => println!("bar"), //~ WARN behave unpredictably
//~^ WARN will become a hard error
_ => unreachable!(),
}
}
|
