24 lines
604 B
Rust
24 lines
604 B
Rust
//! test that we cannot register hidden types for opaque types
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//! declared outside an anonymous constant.
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//@ edition:2018
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#![feature(type_alias_impl_trait)]
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type F = impl core::future::Future<Output = u8>;
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struct Bug {
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V1: [(); {
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#[define_opaque(F)]
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fn concrete_use() -> F {
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//~^ ERROR future that resolves to `u8`, but it resolves to `()`
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async {}
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}
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// FIXME(type_alias_impl_trait): inform the user about why `F` is not available here.
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let f: F = async { 1 };
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//~^ ERROR mismatched types
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1
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}],
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}
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fn main() {}
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