24 lines
676 B
Rust
24 lines
676 B
Rust
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trait Marker<const N: usize> {}
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struct Example<const N: usize>;
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impl<const N: usize> Marker<N> for Example<N> {}
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fn make_marker() -> impl Marker<gimme_a_const!(marker)> {
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//~^ ERROR: type provided when a constant was expected
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//~| ERROR: type provided when a constant was expected
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Example::<gimme_a_const!(marker)>
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//~^ ERROR: type provided when a constant was expected
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}
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fn main() {
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let _ok = Example::<{
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#[macro_export]
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macro_rules! gimme_a_const {
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($rusty: ident) => {{ let $rusty = 3; *&$rusty }}
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//~^ ERROR expected type
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//~| ERROR expected type
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}
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gimme_a_const!(run)
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}>;
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let _ok = Example::<{gimme_a_const!(marker)}>;
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}
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