rust/tests/ui/parser/ranges-precedence.rs

53 lines
866 B
Rust

//@ run-pass
// Test that the precedence of ranges is correct
struct Foo {
foo: usize,
}
impl Foo {
fn bar(&self) -> usize { 5 }
}
fn main() {
let x = 1+3..4+5;
assert_eq!(x, (4..9));
let x = 1..4+5;
assert_eq!(x, (1..9));
let x = 1+3..4;
assert_eq!(x, (4..4));
let a = Foo { foo: 3 };
let x = a.foo..a.bar();
assert_eq!(x, (3..5));
let x = 1+3..;
assert_eq!(x, (4..));
let x = ..1+3;
assert_eq!(x, (..4));
let a = &[0, 1, 2, 3, 4, 5, 6];
let x = &a[1+1..2+2];
assert_eq!(x, &a[2..4]);
let x = &a[..1+2];
assert_eq!(x, &a[..3]);
let x = &a[1+2..];
assert_eq!(x, &a[3..]);
for _i in 2+4..10-3 {}
let i = 42;
for _ in 1..i {}
for _ in 1.. { break; }
let x = [1]..[2];
assert_eq!(x, (([1])..([2])));
let y = ..;
assert_eq!(y, (..));
}