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refs/heads/master: cd6f24f9d14ac90d167386a56e7a6ac1f0318195
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refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
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- refs/heads/snap-stage3: 4b3dd4b9204171d0777749eaf1053fa240be24ec
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+ refs/heads/snap-stage3: 4be7310be0a2f35a5a73825b0718aa643c740c8b
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refs/heads/try: d324a424d8f84b1eb049b12cf34182bda91b0024
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refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
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refs/heads/ndm: f3868061cd7988080c30d6d5bf352a5a5fe2460b
Original file line number Diff line number Diff line change @@ -733,22 +733,22 @@ fn point_from_direction(dir: Direction) -> Point {
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}
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~~~~
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- A special kind of enum variant, called _ struct-like enums_ ,
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- can have its fields extracted with dot notation and not just destructuring.
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- For example:
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+ Enum variants may also be structs. For example:
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~~~~
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# use core::float;
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# struct Point {x: float, y: float}
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# fn square(x: float) -> float { x * x }
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enum Shape {
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Circle { center: Point, radius: float },
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- Rectangle { left : Point, right : Point }
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+ Rectangle { top_left : Point, bottom_right : Point }
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}
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fn area(sh: Shape) -> float {
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match sh {
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- Circle(c) => float::consts::pi * square(c.radius),
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- Rectangle(r) => r.right.x - r.left.x * r.right.y - r.right.y
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+ Circle { radius: radius, _ } => float::consts::pi * square(radius),
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+ Rectangle { top_left: top_left, bottom_right: bottom_right } => {
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+ (bottom_right.x - top_left.x) * (bottom_right.y - top_left.y)
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+ }
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}
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}
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~~~~
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