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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/dst/dst-bad-coerce1.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/dst/dst-bad-coerce1.rs')
-rw-r--r-- | src/test/ui/dst/dst-bad-coerce1.rs | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/src/test/ui/dst/dst-bad-coerce1.rs b/src/test/ui/dst/dst-bad-coerce1.rs new file mode 100644 index 000000000..7ef237e39 --- /dev/null +++ b/src/test/ui/dst/dst-bad-coerce1.rs @@ -0,0 +1,36 @@ +// Attempt to change the type as well as unsizing. + +#![feature(unsized_tuple_coercion)] + +struct Fat<T: ?Sized> { + ptr: T +} + +struct Foo; +trait Bar { fn bar(&self) {} } + +pub fn main() { + // With a vec of isize. + let f1 = Fat { ptr: [1, 2, 3] }; + let f2: &Fat<[isize; 3]> = &f1; + let f3: &Fat<[usize]> = f2; + //~^ ERROR mismatched types + + // With a trait. + let f1 = Fat { ptr: Foo }; + let f2: &Fat<Foo> = &f1; + let f3: &Fat<dyn Bar> = f2; + //~^ ERROR `Foo: Bar` is not satisfied + + // Tuple with a vec of isize. + let f1 = ([1, 2, 3],); + let f2: &([isize; 3],) = &f1; + let f3: &([usize],) = f2; + //~^ ERROR mismatched types + + // Tuple with a trait. + let f1 = (Foo,); + let f2: &(Foo,) = &f1; + let f3: &(dyn Bar,) = f2; + //~^ ERROR `Foo: Bar` is not satisfied +} |