41 lines
880 B
Rust
41 lines
880 B
Rust
struct Point {
|
|
x: int;
|
|
y: int;
|
|
}
|
|
|
|
impl Point : ops::add<Point,Point> {
|
|
pure fn add(other: Point) -> Point {
|
|
Point {x: self.x + other.x, y: self.y + other.y}
|
|
}
|
|
}
|
|
|
|
impl Point : ops::sub<Point,Point> {
|
|
pure fn sub(other: Point) -> Point {
|
|
Point {x: self.x - other.x, y: self.y - other.y}
|
|
}
|
|
}
|
|
|
|
impl Point : ops::neg<Point> {
|
|
pure fn neg() -> Point {
|
|
Point {x: -self.x, y: -self.y}
|
|
}
|
|
}
|
|
|
|
impl Point : ops::index<bool,int> {
|
|
pure fn index(&&x: bool) -> int {
|
|
if x { self.x } else { self.y }
|
|
}
|
|
}
|
|
|
|
fn main() {
|
|
let mut p = Point {x: 10, y: 20};
|
|
p += Point {x: 101, y: 102};
|
|
p -= Point {x: 100, y: 100};
|
|
assert p + Point {x: 5, y: 5} == Point {x: 16, y: 27};
|
|
assert -p == Point {x: -11, y: -22};
|
|
assert p[true] == 11;
|
|
assert p[false] == 22;
|
|
// Issue #1733
|
|
fn~(_x: int){}(p[true]);
|
|
}
|