More pattern testcases
This commit is contained in:
Aman Arora
parent
fa381600dc
commit
be77402ee3
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#![feature(capture_disjoint_fields)]
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//~^ WARNING the feature `capture_disjoint_fields` is incomplete
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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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|| {
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let [a, b, .., e] = arr;
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//~^ ERROR: Capturing arr[Index] -> ByValue
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//~^^ ERROR: 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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|| {
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let Point { x: ref mut x, y: _, id: moved_id } = p;
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//~^ ERROR: Capturing p[(0, 0)] -> MutBorrow
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//~^^ ERROR: Capturing p[(2, 0)] -> ByValue
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//~^^^ ERROR: Min Capture p[(0, 0)] -> MutBorrow
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//~^^^^ ERROR: 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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|| {
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let (ref mut x, ref ref_str, (moved_s, _)) = t;
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//~^ ERROR: Capturing t[(0, 0)] -> MutBorrow
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//~^^ ERROR: Capturing t[(1, 0)] -> ImmBorrow
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//~^^^ ERROR: Capturing t[(2, 0),(0, 0)] -> ByValue
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//~^^^^ ERROR: Min Capture t[(0, 0)] -> MutBorrow
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//~^^^^^ ERROR: Min Capture t[(1, 0)] -> ImmBorrow
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//~^^^^^^ ERROR: 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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@ -0,0 +1,111 @@
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error[E0658]: attributes on expressions are experimental
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--> $DIR/destructure_patterns.rs:10:13
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LL | let c = #[rustc_capture_analysis]
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| ^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> for more information
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= help: add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable
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error[E0658]: attributes on expressions are experimental
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--> $DIR/destructure_patterns.rs:33:13
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LL | let c = #[rustc_capture_analysis]
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| ^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> for more information
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= help: add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable
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error[E0658]: attributes on expressions are experimental
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--> $DIR/destructure_patterns.rs:50:13
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LL | let c = #[rustc_capture_analysis]
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| ^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> for more information
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= help: add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable
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warning: the feature `capture_disjoint_fields` is incomplete and may not be safe to use and/or cause compiler crashes
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--> $DIR/destructure_patterns.rs:1:12
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LL | #![feature(capture_disjoint_fields)]
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| ^^^^^^^^^^^^^^^^^^^^^^^
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= note: `#[warn(incomplete_features)]` on by default
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= note: see issue #53488 <https://github.com/rust-lang/rust/issues/53488> for more information
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error: Capturing arr[Index] -> ByValue
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--> $DIR/destructure_patterns.rs:13:29
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LL | let [a, b, .., e] = arr;
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| ^^^
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error: Min Capture arr[] -> ByValue
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--> $DIR/destructure_patterns.rs:13:29
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LL | let [a, b, .., e] = arr;
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| ^^^
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error: Capturing p[(0, 0)] -> MutBorrow
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--> $DIR/destructure_patterns.rs:36:58
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LL | let Point { x: ref mut x, y: _, id: moved_id } = p;
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| ^
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error: Capturing p[(2, 0)] -> ByValue
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--> $DIR/destructure_patterns.rs:36:58
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LL | let Point { x: ref mut x, y: _, id: moved_id } = p;
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| ^
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error: Min Capture p[(0, 0)] -> MutBorrow
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--> $DIR/destructure_patterns.rs:36:58
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LL | let Point { x: ref mut x, y: _, id: moved_id } = p;
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| ^
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error: Min Capture p[(2, 0)] -> ByValue
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--> $DIR/destructure_patterns.rs:36:58
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LL | let Point { x: ref mut x, y: _, id: moved_id } = p;
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| ^
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error: Capturing t[(0, 0)] -> MutBorrow
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--> $DIR/destructure_patterns.rs:53:54
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LL | let (ref mut x, ref ref_str, (moved_s, _)) = t;
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| ^
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error: Capturing t[(1, 0)] -> ImmBorrow
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--> $DIR/destructure_patterns.rs:53:54
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LL | let (ref mut x, ref ref_str, (moved_s, _)) = t;
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| ^
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error: Capturing t[(2, 0),(0, 0)] -> ByValue
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--> $DIR/destructure_patterns.rs:53:54
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LL | let (ref mut x, ref ref_str, (moved_s, _)) = t;
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| ^
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error: Min Capture t[(0, 0)] -> MutBorrow
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--> $DIR/destructure_patterns.rs:53:54
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LL | let (ref mut x, ref ref_str, (moved_s, _)) = t;
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| ^
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error: Min Capture t[(1, 0)] -> ImmBorrow
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--> $DIR/destructure_patterns.rs:53:54
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LL | let (ref mut x, ref ref_str, (moved_s, _)) = t;
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| ^
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error: Min Capture t[(2, 0),(0, 0)] -> ByValue
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--> $DIR/destructure_patterns.rs:53:54
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LL | let (ref mut x, ref ref_str, (moved_s, _)) = t;
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| ^
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error: aborting due to 15 previous errors; 1 warning emitted
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For more information about this error, try `rustc --explain E0658`.
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@ -1,30 +0,0 @@
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#![feature(capture_disjoint_fields)]
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//~^ WARNING the feature `capture_disjoint_fields` is incomplete
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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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//
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// The array should be moved in entirety, even though only some elements are used.
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fn main() {
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let arr : [String; 5] = [
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format!("A"),
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format!("B"),
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format!("C"),
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format!("D"),
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format!("E")
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];
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let c = #[rustc_capture_analysis]
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//~^ ERROR: attributes on expressions are experimental
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|| {
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let [a, b, .., e] = arr;
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//~^ ERROR: Capturing arr[Index] -> ByValue
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//~^^ ERROR: 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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error[E0658]: attributes on expressions are experimental
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--> $DIR/slice-pat.rs:18:13
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LL | let c = #[rustc_capture_analysis]
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| ^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> for more information
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= help: add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable
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warning: the feature `capture_disjoint_fields` is incomplete and may not be safe to use and/or cause compiler crashes
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--> $DIR/slice-pat.rs:1:12
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LL | #![feature(capture_disjoint_fields)]
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| ^^^^^^^^^^^^^^^^^^^^^^^
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= note: `#[warn(incomplete_features)]` on by default
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= note: see issue #53488 <https://github.com/rust-lang/rust/issues/53488> for more information
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error: Capturing arr[Index] -> ByValue
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--> $DIR/slice-pat.rs:21:33
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LL | let [a, b, .., e] = arr;
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| ^^^
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error: Min Capture arr[] -> ByValue
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--> $DIR/slice-pat.rs:21:33
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LL | let [a, b, .., e] = arr;
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| ^^^
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error: aborting due to 3 previous errors; 1 warning emitted
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For more information about this error, try `rustc --explain E0658`.
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62
src/test/ui/closures/2229_closure_analysis/wild_patterns.rs
Normal file
62
src/test/ui/closures/2229_closure_analysis/wild_patterns.rs
Normal file
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#![feature(capture_disjoint_fields)]
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//~^ WARNING the feature `capture_disjoint_fields` is incomplete
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#![feature(rustc_attrs)]
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// Test to ensure that we can handle cases where
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// let statements create no bindings are intialized
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// using a Place expression
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//
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// Note: Currently when feature `capture_disjoint_fields` is enabled
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// we can't handle such cases. So the test so the test
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struct Point {
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x: i32,
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y: i32,
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}
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fn wild_struct() {
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let p = Point { x: 10, y: 20 };
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let c = #[rustc_capture_analysis]
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//~^ ERROR: attributes on expressions are experimental
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|| {
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// FIXME(arora-aman): Change `_x` to `_`
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let Point { x: _x, y: _ } = p;
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//~^ ERROR: Capturing p[(0, 0)] -> ImmBorrow
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//~^^ ERROR: Min Capture p[(0, 0)] -> ImmBorrow
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};
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c();
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}
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fn wild_tuple() {
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let t = (String::new(), 10);
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let c = #[rustc_capture_analysis]
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//~^ ERROR: attributes on expressions are experimental
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|| {
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// FIXME(arora-aman): Change `_x` to `_`
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let (_x, _) = t;
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//~^ ERROR: Capturing t[(0, 0)] -> ByValue
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//~^^ ERROR: Min Capture t[(0, 0)] -> ByValue
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};
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c();
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}
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fn wild_arr() {
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let arr = [String::new(), 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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|| {
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// FIXME(arora-aman): Change `_x` to `_`
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let [_x, _] = arr;
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//~^ ERROR: Capturing arr[Index] -> ByValue
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//~^^ ERROR: Min Capture arr[] -> ByValue
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};
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c();
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}
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fn main() {}
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@ -0,0 +1,75 @@
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error[E0658]: attributes on expressions are experimental
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--> $DIR/wild_patterns.rs:20:13
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LL | let c = #[rustc_capture_analysis]
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| ^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> for more information
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= help: add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable
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error[E0658]: attributes on expressions are experimental
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--> $DIR/wild_patterns.rs:35:13
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LL | let c = #[rustc_capture_analysis]
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| ^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> for more information
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= help: add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable
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error[E0658]: attributes on expressions are experimental
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--> $DIR/wild_patterns.rs:50:13
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LL | let c = #[rustc_capture_analysis]
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| ^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> for more information
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= help: add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable
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warning: the feature `capture_disjoint_fields` is incomplete and may not be safe to use and/or cause compiler crashes
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--> $DIR/wild_patterns.rs:1:12
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LL | #![feature(capture_disjoint_fields)]
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| ^^^^^^^^^^^^^^^^^^^^^^^
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= note: `#[warn(incomplete_features)]` on by default
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= note: see issue #53488 <https://github.com/rust-lang/rust/issues/53488> for more information
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error: Capturing p[(0, 0)] -> ImmBorrow
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--> $DIR/wild_patterns.rs:24:37
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LL | let Point { x: _x, y: _ } = p;
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| ^
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error: Min Capture p[(0, 0)] -> ImmBorrow
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--> $DIR/wild_patterns.rs:24:37
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LL | let Point { x: _x, y: _ } = p;
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| ^
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error: Capturing t[(0, 0)] -> ByValue
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--> $DIR/wild_patterns.rs:39:23
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LL | let (_x, _) = t;
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| ^
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error: Min Capture t[(0, 0)] -> ByValue
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--> $DIR/wild_patterns.rs:39:23
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LL | let (_x, _) = t;
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| ^
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error: Capturing arr[Index] -> ByValue
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--> $DIR/wild_patterns.rs:54:23
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LL | let [_x, _] = arr;
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| ^^^
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error: Min Capture arr[] -> ByValue
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--> $DIR/wild_patterns.rs:54:23
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LL | let [_x, _] = arr;
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| ^^^
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error: aborting due to 9 previous errors; 1 warning emitted
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For more information about this error, try `rustc --explain E0658`.
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