81 lines
2.7 KiB
Rust
81 lines
2.7 KiB
Rust
// edition:2021
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#![feature(rustc_attrs)]
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// Test to ensure Index projections are handled properly during capture analysis
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// The array should be moved in entirety, even though only some elements are used.
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fn arrays() {
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let arr: [String; 5] = [format!("A"), format!("B"), format!("C"), format!("D"), format!("E")];
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let c = #[rustc_capture_analysis]
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//~^ ERROR: attributes on expressions are experimental
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//~| NOTE: see issue #15701 <https://github.com/rust-lang/rust/issues/15701>
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//~| NOTE: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
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|| {
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//~^ ERROR: First Pass analysis includes:
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//~| ERROR: Min Capture analysis includes:
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let [a, b, .., e] = arr;
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//~^ NOTE: Capturing arr[Index] -> ByValue
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//~| NOTE: Capturing arr[Index] -> ByValue
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//~| NOTE: Capturing arr[Index] -> ByValue
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//~| NOTE: Min Capture arr[] -> ByValue
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assert_eq!(a, "A");
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assert_eq!(b, "B");
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assert_eq!(e, "E");
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};
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c();
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}
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struct Point {
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x: i32,
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y: i32,
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id: String,
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}
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fn structs() {
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let mut p = Point { x: 10, y: 10, id: String::new() };
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let c = #[rustc_capture_analysis]
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//~^ ERROR: attributes on expressions are experimental
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//~| NOTE: see issue #15701 <https://github.com/rust-lang/rust/issues/15701>
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//~| NOTE: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
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|| {
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//~^ ERROR: First Pass analysis includes:
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//~| ERROR: Min Capture analysis includes:
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let Point { x: ref mut x, y: _, id: moved_id } = p;
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//~^ NOTE: Capturing p[(0, 0)] -> MutBorrow
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//~| NOTE: Capturing p[(2, 0)] -> ByValue
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//~| NOTE: Min Capture p[(0, 0)] -> MutBorrow
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//~| NOTE: Min Capture p[(2, 0)] -> ByValue
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println!("{}, {}", x, moved_id);
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};
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c();
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}
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fn tuples() {
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let mut t = (10, String::new(), (String::new(), 42));
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let c = #[rustc_capture_analysis]
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//~^ ERROR: attributes on expressions are experimental
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//~| NOTE: see issue #15701 <https://github.com/rust-lang/rust/issues/15701>
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//~| NOTE: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
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|| {
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//~^ ERROR: First Pass analysis includes:
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//~| ERROR: Min Capture analysis includes:
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let (ref mut x, ref ref_str, (moved_s, _)) = t;
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//~^ NOTE: Capturing t[(0, 0)] -> MutBorrow
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//~| NOTE: Capturing t[(1, 0)] -> ImmBorrow
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//~| NOTE: Capturing t[(2, 0),(0, 0)] -> ByValue
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//~| NOTE: Min Capture t[(0, 0)] -> MutBorrow
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//~| NOTE: Min Capture t[(1, 0)] -> ImmBorrow
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//~| NOTE: Min Capture t[(2, 0),(0, 0)] -> ByValue
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println!("{}, {} {}", x, ref_str, moved_s);
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};
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c();
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}
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fn main() {}
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