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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/dst/dst-bad-coercions.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/dst/dst-bad-coercions.rs')
-rw-r--r-- | tests/ui/dst/dst-bad-coercions.rs | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/tests/ui/dst/dst-bad-coercions.rs b/tests/ui/dst/dst-bad-coercions.rs new file mode 100644 index 000000000..bffef378c --- /dev/null +++ b/tests/ui/dst/dst-bad-coercions.rs @@ -0,0 +1,26 @@ +// Test implicit coercions involving DSTs and raw pointers. + +struct S; +trait T {} +impl T for S {} + +struct Foo<T: ?Sized> { + f: T +} + +pub fn main() { + // Test that we cannot convert from *-ptr to &S and &T + let x: *const S = &S; + let y: &S = x; //~ ERROR mismatched types + let y: &dyn T = x; //~ ERROR mismatched types + + // Test that we cannot convert from *-ptr to &S and &T (mut version) + let x: *mut S = &mut S; + let y: &S = x; //~ ERROR mismatched types + let y: &dyn T = x; //~ ERROR mismatched types + + // Test that we cannot convert an immutable ptr to a mutable one using *-ptrs + let x: &mut dyn T = &S; //~ ERROR mismatched types + let x: *mut dyn T = &S; //~ ERROR mismatched types + let x: *mut S = &S; //~ ERROR mismatched types +} |