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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
commit | 218caa410aa38c29984be31a5229b9fa717560ee (patch) | |
tree | c54bd55eeb6e4c508940a30e94c0032fbd45d677 /tests/ui/closures/2229_closure_analysis/unsafe_ptr.rs | |
parent | Releasing progress-linux version 1.67.1+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-218caa410aa38c29984be31a5229b9fa717560ee.tar.xz rustc-218caa410aa38c29984be31a5229b9fa717560ee.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/closures/2229_closure_analysis/unsafe_ptr.rs')
-rw-r--r-- | tests/ui/closures/2229_closure_analysis/unsafe_ptr.rs | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/tests/ui/closures/2229_closure_analysis/unsafe_ptr.rs b/tests/ui/closures/2229_closure_analysis/unsafe_ptr.rs new file mode 100644 index 000000000..eab9f9d08 --- /dev/null +++ b/tests/ui/closures/2229_closure_analysis/unsafe_ptr.rs @@ -0,0 +1,62 @@ +// edition:2021 + +// Test that we restrict precision of a capture when we access a raw ptr, +// i.e. the capture doesn't deref the raw ptr. + + +#![feature(rustc_attrs)] + +#[derive(Debug)] +struct S { + s: String, + t: String, +} + +struct T(*const S); + +fn unsafe_imm() { + let s = "".into(); + let t = "".into(); + let my_speed: Box<S> = Box::new(S { s, t }); + + let p : *const S = Box::into_raw(my_speed); + let t = T(p); + + let c = #[rustc_capture_analysis] + //~^ ERROR: attributes on expressions are experimental + //~| NOTE: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> + || unsafe { + //~^ ERROR: First Pass analysis includes: + //~| ERROR: Min Capture analysis includes: + println!("{:?}", (*t.0).s); + //~^ NOTE: Capturing t[(0, 0),Deref,(0, 0)] -> ImmBorrow + //~| NOTE: Min Capture t[(0, 0)] -> ImmBorrow + }; + + c(); +} + +fn unsafe_mut() { + let s = "".into(); + let t = "".into(); + let mut my_speed: Box<S> = Box::new(S { s, t }); + let p : *mut S = &mut *my_speed; + + let c = #[rustc_capture_analysis] + //~^ ERROR: attributes on expressions are experimental + //~| NOTE: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> + || { + //~^ ERROR: First Pass analysis includes: + //~| ERROR: Min Capture analysis includes: + let x = unsafe { &mut (*p).s }; + //~^ NOTE: Capturing p[Deref,(0, 0)] -> ImmBorrow + //~| NOTE: Min Capture p[] -> ImmBorrow + *x = "s".into(); + }; + c(); +} + +fn main() { + unsafe_mut(); + unsafe_imm(); +} |