39 lines
617 B
Rust
39 lines
617 B
Rust
// check-pass
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// ignore-pretty pretty-printing is unhygienic
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#![feature(decl_macro, associated_type_defaults)]
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trait Base {
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type AssocTy;
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fn f();
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}
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trait Derived: Base {
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fn g();
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}
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macro mac() {
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type A = dyn Base<AssocTy = u8>;
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type B = dyn Derived<AssocTy = u8>;
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impl Base for u8 {
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type AssocTy = u8;
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fn f() {
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let _: Self::AssocTy;
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}
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}
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impl Derived for u8 {
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fn g() {
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let _: Self::AssocTy;
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}
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}
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fn h<T: Base, U: Derived>() {
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let _: T::AssocTy;
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let _: U::AssocTy;
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}
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}
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mac!();
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fn main() {}
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