44 lines
932 B
Rust
44 lines
932 B
Rust
// edition:2021
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//check-pass
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#[derive(Copy, Clone)]
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enum PointType {
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TwoD(u32, u32),
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ThreeD(u32, u32, u32)
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}
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// Testing tuple struct patterns
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struct Points {
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points: Vec<PointType>,
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}
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impl Points {
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pub fn test1(&mut self) -> Vec<usize> {
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(0..self.points.len())
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.filter_map(|i| {
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match self.test2(i) {
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PointType::TwoD (..) => Some(i),
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PointType::ThreeD (..) => None,
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}
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})
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.collect()
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}
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pub fn test2(&mut self, i: usize) -> PointType {
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self.points[i]
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}
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}
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fn main() {
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let mut points = Points {
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points: Vec::<PointType>::new()
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};
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points.points.push(PointType::ThreeD(0,0,0));
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points.points.push(PointType::TwoD(0,0));
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points.points.push(PointType::ThreeD(0,0,1));
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points.points.push(PointType::TwoD(0,1));
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println!("{:?}", points.test1());
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}
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