mirror of https://github.com/rust-lang/rust
13 lines
317 B
Rust
13 lines
317 B
Rust
// `ty` matcher accepts trait object types
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macro_rules! m {
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($t: ty) => ( let _: $t; )
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}
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fn main() {
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m!(dyn Copy + Send + 'static);
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//~^ ERROR the trait `Copy` cannot be made into an object
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m!(dyn 'static + Send);
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m!(dyn 'static +); //~ ERROR at least one trait is required for an object type
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}
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