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38 lines
1016 B
Rust
38 lines
1016 B
Rust
#![feature(adt_const_params)]
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#![allow(incomplete_features)]
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use std::marker::ConstParamTy;
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#[derive(PartialEq, Eq, ConstParamTy)]
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enum CompileFlag {
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A,
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B,
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}
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pub fn test_1<const CF: CompileFlag>() {}
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pub fn test_2<T, const CF: CompileFlag>(x: T) {}
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pub struct Example<const CF: CompileFlag, T=u32>{
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x: T,
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}
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impl<const CF: CompileFlag, T> Example<CF, T> {
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const ASSOC_FLAG: CompileFlag = CompileFlag::A;
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}
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pub fn main() {
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test_1::<CompileFlag::A>();
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//~^ ERROR: expected type, found variant
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//~| ERROR: unresolved item provided when a constant was expected
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test_2::<_, CompileFlag::A>(0);
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//~^ ERROR: expected type, found variant
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//~| ERROR: unresolved item provided when a constant was expected
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let _: Example<CompileFlag::A, _> = Example { x: 0 };
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//~^ ERROR: expected type, found variant
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//~| ERROR: unresolved item provided when a constant was expected
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let _: Example<Example::ASSOC_FLAG, _> = Example { x: 0 };
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//~^ ERROR: type provided when a constant was expected
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}
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