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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 /src/test/ui/unsized/issue-40231-2.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 'src/test/ui/unsized/issue-40231-2.rs')
-rw-r--r-- | src/test/ui/unsized/issue-40231-2.rs | 54 |
1 files changed, 0 insertions, 54 deletions
diff --git a/src/test/ui/unsized/issue-40231-2.rs b/src/test/ui/unsized/issue-40231-2.rs deleted file mode 100644 index 780433b28..000000000 --- a/src/test/ui/unsized/issue-40231-2.rs +++ /dev/null @@ -1,54 +0,0 @@ -// check-pass - -#![allow(dead_code)] - -trait Structure<E>: Sized where E: Encoding { - type RefTarget: ?Sized; - type FfiPtr; - unsafe fn borrow_from_ffi_ptr<'a>(ptr: Self::FfiPtr) -> Option<&'a Self::RefTarget>; -} - -enum Slice {} - -impl<E> Structure<E> for Slice where E: Encoding { - type RefTarget = [E::Unit]; - type FfiPtr = (*const E::FfiUnit, usize); - unsafe fn borrow_from_ffi_ptr<'a>(_ptr: Self::FfiPtr) -> Option<&'a Self::RefTarget> { - panic!() - } -} - -trait Encoding { - type Unit: Unit; - type FfiUnit; -} - -trait Unit {} - -enum Utf16 {} - -impl Encoding for Utf16 { - type Unit = Utf16Unit; - type FfiUnit = u16; -} - -struct Utf16Unit(pub u16); - -impl Unit for Utf16Unit {} - -struct SUtf16Str { - _data: <Slice as Structure<Utf16>>::RefTarget, -} - -impl SUtf16Str { - pub unsafe fn from_ptr<'a>(ptr: <Slice as Structure<Utf16>>::FfiPtr) - -> Option<&'a Self> { - std::mem::transmute::<Option<&[<Utf16 as Encoding>::Unit]>, _>( - <Slice as Structure<Utf16>>::borrow_from_ffi_ptr(ptr)) - } -} - -fn main() { - const TEXT_U16: &'static [u16] = &[]; - let _ = unsafe { SUtf16Str::from_ptr((TEXT_U16.as_ptr(), TEXT_U16.len())).unwrap() }; -} |