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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/let-else/let-else-ref-bindings-pass.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/let-else/let-else-ref-bindings-pass.rs')
-rw-r--r-- | tests/ui/let-else/let-else-ref-bindings-pass.rs | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/tests/ui/let-else/let-else-ref-bindings-pass.rs b/tests/ui/let-else/let-else-ref-bindings-pass.rs new file mode 100644 index 000000000..62fc65731 --- /dev/null +++ b/tests/ui/let-else/let-else-ref-bindings-pass.rs @@ -0,0 +1,71 @@ +// check-pass + + +#![allow(unused_variables)] + +fn ref_() { + let bytes: Vec<u8> = b"Hello"[..].to_vec(); + let some = Some(bytes); + + let Some(ref a) = Some(()) else { return }; + + // | ref | type annotation | & | + // | --- | --------------- | - | + // | x | x | | error + // | x | x | x | error + // | | x | | error + // | | x | x | error + // | x | | | + let Some(ref a) = some else { return }; // OK + let b: &[u8] = a; + + // | x | | x | + let Some(ref a) = &some else { return }; // OK + let b: &[u8] = a; + + + // | | | x | + let Some(a) = &some else { return }; // OK + let b: &[u8] = a; + + let Some(a): Option<&[u8]> = some.as_deref() else { return }; // OK + let b: &[u8] = a; + let Some(ref a): Option<&[u8]> = some.as_deref() else { return }; // OK + let b: &[u8] = a; +} + +fn ref_mut() { + // This `ref mut` case had an ICE, see issue #89960 + let Some(ref mut a) = Some(()) else { return }; + + let bytes: Vec<u8> = b"Hello"[..].to_vec(); + let mut some = Some(bytes); + + // | ref mut | type annotation | &mut | + // | ------- | --------------- | ---- | + // | x | x | | error + // | x | x | x | error + // | | x | | error + // | | x | x | error + // | x | | | + let Some(ref mut a) = some else { return }; // OK + let b: &mut [u8] = a; + + // | x | | x | + let Some(ref mut a) = &mut some else { return }; // OK + let b: &mut [u8] = a; + + // | | | x | + let Some(a) = &mut some else { return }; // OK + let b: &mut [u8] = a; + + let Some(a): Option<&mut [u8]> = some.as_deref_mut() else { return }; // OK + let b: &mut [u8] = a; + let Some(ref mut a): Option<&mut [u8]> = some.as_deref_mut() else { return }; // OK + let b: &mut [u8] = a; +} + +fn main() { + ref_(); + ref_mut(); +} |