diff options
Diffstat (limited to 'tests/ui/issues/issue-23808.rs')
-rw-r--r-- | tests/ui/issues/issue-23808.rs | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/tests/ui/issues/issue-23808.rs b/tests/ui/issues/issue-23808.rs new file mode 100644 index 000000000..0988b09fc --- /dev/null +++ b/tests/ui/issues/issue-23808.rs @@ -0,0 +1,59 @@ +// run-pass + +#![deny(dead_code)] + +// use different types / traits to test all combinations + +trait Const { + const C: (); +} + +trait StaticFn { + fn sfn(); +} + +struct ConstStruct; +struct StaticFnStruct; + +enum ConstEnum {} +enum StaticFnEnum {} + +struct AliasedConstStruct; +struct AliasedStaticFnStruct; + +enum AliasedConstEnum {} +enum AliasedStaticFnEnum {} + +type AliasConstStruct = AliasedConstStruct; +type AliasStaticFnStruct = AliasedStaticFnStruct; +type AliasConstEnum = AliasedConstEnum; +type AliasStaticFnEnum = AliasedStaticFnEnum; + +macro_rules! impl_Const {($($T:ident),*) => {$( + impl Const for $T { + const C: () = (); + } +)*}} + +macro_rules! impl_StaticFn {($($T:ident),*) => {$( + impl StaticFn for $T { + fn sfn() {} + } +)*}} + +impl_Const!(ConstStruct, ConstEnum, AliasedConstStruct, AliasedConstEnum); +impl_StaticFn!(StaticFnStruct, StaticFnEnum, AliasedStaticFnStruct, AliasedStaticFnEnum); + +fn main() { + let _ = ConstStruct::C; + let _ = ConstEnum::C; + + StaticFnStruct::sfn(); + StaticFnEnum::sfn(); + + let _ = AliasConstStruct::C; + let _ = AliasConstEnum::C; + + AliasStaticFnStruct::sfn(); + AliasStaticFnEnum::sfn(); +} |