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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/rfc-2008-non-exhaustive/uninhabited/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/rfc-2008-non-exhaustive/uninhabited/coercions.rs')
-rw-r--r-- | tests/ui/rfc-2008-non-exhaustive/uninhabited/coercions.rs | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/tests/ui/rfc-2008-non-exhaustive/uninhabited/coercions.rs b/tests/ui/rfc-2008-non-exhaustive/uninhabited/coercions.rs new file mode 100644 index 000000000..80b9dc4c1 --- /dev/null +++ b/tests/ui/rfc-2008-non-exhaustive/uninhabited/coercions.rs @@ -0,0 +1,38 @@ +// aux-build:uninhabited.rs +#![feature(never_type)] + +extern crate uninhabited; + +use uninhabited::{ + UninhabitedEnum, + UninhabitedStruct, + UninhabitedTupleStruct, + UninhabitedVariants, +}; + +// This test checks that uninhabited non-exhaustive types cannot coerce to any type, as the never +// type can. + +struct A; + +fn can_coerce_never_type_to_anything(x: !) -> A { + x +} + +fn cannot_coerce_empty_enum_to_anything(x: UninhabitedEnum) -> A { + x //~ ERROR mismatched types +} + +fn cannot_coerce_empty_tuple_struct_to_anything(x: UninhabitedTupleStruct) -> A { + x //~ ERROR mismatched types +} + +fn cannot_coerce_empty_struct_to_anything(x: UninhabitedStruct) -> A { + x //~ ERROR mismatched types +} + +fn cannot_coerce_enum_with_empty_variants_to_anything(x: UninhabitedVariants) -> A { + x //~ ERROR mismatched types +} + +fn main() {} |