Merge tag 'debian/1.52.1+dfsg1-1_exp2' into proxmox/buster

[rustc.git] / src / test / ui / closures / 2229_closure_analysis / run_pass / struct-pattern-matching-with-methods.rs

diff --git a/src/test/ui/closures/2229_closure_analysis/run_pass/struct-pattern-matching-with-methods.rs b/src/test/ui/closures/2229_closure_analysis/run_pass/struct-pattern-matching-with-methods.rs
new file mode 100644 (file)
index 0000000..d260a44
--- /dev/null
+++ b/src/test/ui/closures/2229_closure_analysis/run_pass/struct-pattern-matching-with-methods.rs
@@ -0,0 +1,49 @@
+//check-pass
+#![feature(capture_disjoint_fields)]
+//~^ WARNING: the feature `capture_disjoint_fields` is incomplete
+#![warn(unused)]
+#![feature(rustc_attrs)]
+
+#[derive(Debug, Clone, Copy)]
+enum PointType {
+    TwoD { x: u32, y: u32 },
+
+    ThreeD{ x: u32, y: u32, z: u32 }
+}
+
+// Testing struct patterns
+struct Points {
+    points: Vec<PointType>,
+}
+
+impl Points {
+    pub fn test1(&mut self) -> Vec<usize> {
+        (0..self.points.len())
+            .filter_map(|i| {
+                let idx = i as usize;
+                match self.test2(idx) {
+                    PointType::TwoD { .. } => Some(i),
+                    PointType::ThreeD { .. } => None,
+                }
+            })
+            .collect()
+    }
+
+    pub fn test2(&mut self, i: usize) -> PointType {
+        self.points[i]
+    }
+}
+
+fn main() {
+    let mut points = Points {
+        points: Vec::<PointType>::new()
+    };
+
+    points.points.push(PointType::ThreeD { x:0, y:0, z:0 });
+    points.points.push(PointType::TwoD{ x:0, y:0 });
+    points.points.push(PointType::ThreeD{ x:0, y:0, z:0 });
+    points.points.push(PointType::TwoD{ x:0, y:0 });
+
+    println!("{:?}", points.test1());
+    println!("{:?}", points.points);
+}