39 lines
1.0 KiB
Rust
39 lines
1.0 KiB
Rust
// compile-flags:-Z unstable-options --show-coverage
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// check-pass
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#![feature(trait_alias)]
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/// look at this trait right here
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pub trait ThisTrait {
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/// that's a trait all right
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fn right_here(&self);
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/// even the provided functions show up as trait methods
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fn aww_yeah(&self) {}
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/// gotta check those associated types, they're slippery
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type SomeType;
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}
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/// so what happens if we take some struct...
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pub struct SomeStruct;
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/// ...and slap this trait on it?
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impl ThisTrait for SomeStruct {
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/// nothing! trait impls are totally ignored in this calculation, sorry.
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fn right_here(&self) {}
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type SomeType = String;
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}
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/// but what about those aliases? i hear they're pretty exotic
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pub trait MyAlias = ThisTrait + Send + Sync;
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// FIXME(58624): once rustdoc can process opaque `impl Trait` types,
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// we need to make sure they're counted
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// /// woah, getting all opaque in here
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// pub type ThisExists = impl ThisTrait;
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//
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// /// why don't we get a little more concrete
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// pub fn defines() -> ThisExists { SomeStruct {} }
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