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Diffstat (limited to 'tests/ui/binop/operator-multidispatch.rs')
-rw-r--r-- | tests/ui/binop/operator-multidispatch.rs | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/tests/ui/binop/operator-multidispatch.rs b/tests/ui/binop/operator-multidispatch.rs new file mode 100644 index 000000000..0d1dcfd8b --- /dev/null +++ b/tests/ui/binop/operator-multidispatch.rs @@ -0,0 +1,36 @@ +// run-pass +// Test that we can overload the `+` operator for points so that two +// points can be added, and a point can be added to an integer. + +use std::ops; + +#[derive(Debug,PartialEq,Eq)] +struct Point { + x: isize, + y: isize +} + +impl ops::Add for Point { + type Output = Point; + + fn add(self, other: Point) -> Point { + Point {x: self.x + other.x, y: self.y + other.y} + } +} + +impl ops::Add<isize> for Point { + type Output = Point; + + fn add(self, other: isize) -> Point { + Point {x: self.x + other, + y: self.y + other} + } +} + +pub fn main() { + let mut p = Point {x: 10, y: 20}; + p = p + Point {x: 101, y: 102}; + assert_eq!(p, Point {x: 111, y: 122}); + p = p + 1; + assert_eq!(p, Point {x: 112, y: 123}); +} |