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-rw-r--r--tests/ui/binop/operator-multidispatch.rs36
1 files changed, 36 insertions, 0 deletions
diff --git a/tests/ui/binop/operator-multidispatch.rs b/tests/ui/binop/operator-multidispatch.rs
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+++ b/tests/ui/binop/operator-multidispatch.rs
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+// 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});
+}