mirror of
https://github.com/rust-lang/rust
synced 2024-10-14 12:33:57 +00:00
27 lines
463 B
Rust
27 lines
463 B
Rust
//@ check-pass
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#![feature(fn_delegation)]
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#![allow(incomplete_features)]
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trait Trait {
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fn foo(&self) -> u8 { 0 }
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fn bar(&self) -> u8 { 1 }
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}
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impl Trait for u8 {}
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struct S(u8);
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// Macro expansion works inside delegation items.
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macro_rules! u8 { () => { u8 } }
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macro_rules! self_0 { ($self:ident) => { &$self.0 } }
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impl Trait for S {
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reuse <u8!() as Trait>::{foo, bar} { self_0!(self) }
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}
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fn main() {
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let s = S(2);
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s.foo();
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s.bar();
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}
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