mirror of https://github.com/rust-lang/rust
60 lines
1.2 KiB
Rust
60 lines
1.2 KiB
Rust
//@ run-pass
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#![deny(dead_code)]
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// use different types / traits to test all combinations
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trait Const {
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const C: ();
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}
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trait StaticFn {
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fn sfn();
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}
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struct ConstStruct;
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struct StaticFnStruct;
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enum ConstEnum {}
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enum StaticFnEnum {}
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struct AliasedConstStruct;
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struct AliasedStaticFnStruct;
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enum AliasedConstEnum {}
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enum AliasedStaticFnEnum {}
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type AliasConstStruct = AliasedConstStruct;
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type AliasStaticFnStruct = AliasedStaticFnStruct;
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type AliasConstEnum = AliasedConstEnum;
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type AliasStaticFnEnum = AliasedStaticFnEnum;
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macro_rules! impl_Const {($($T:ident),*) => {$(
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impl Const for $T {
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const C: () = ();
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}
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)*}}
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macro_rules! impl_StaticFn {($($T:ident),*) => {$(
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impl StaticFn for $T {
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fn sfn() {}
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}
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)*}}
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impl_Const!(ConstStruct, ConstEnum, AliasedConstStruct, AliasedConstEnum);
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impl_StaticFn!(StaticFnStruct, StaticFnEnum, AliasedStaticFnStruct, AliasedStaticFnEnum);
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fn main() {
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let () = ConstStruct::C;
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let () = ConstEnum::C;
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StaticFnStruct::sfn();
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StaticFnEnum::sfn();
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let () = AliasConstStruct::C;
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let () = AliasConstEnum::C;
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AliasStaticFnStruct::sfn();
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AliasStaticFnEnum::sfn();
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}
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