mirror of https://github.com/rust-lang/rust
37 lines
587 B
Rust
37 lines
587 B
Rust
//@ check-pass
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use std::marker::PhantomData;
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#[derive(Default)]
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struct MyType<'a> {
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field: usize,
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_phantom: PhantomData<&'a ()>,
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}
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#[derive(Default)]
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struct MyTypeVariant<'a> {
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field: usize,
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_phantom: PhantomData<&'a ()>,
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}
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trait AsVariantTrait {
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type Type;
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}
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impl<'a> AsVariantTrait for MyType<'a> {
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type Type = MyTypeVariant<'a>;
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}
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type Variant<G> = <G as AsVariantTrait>::Type;
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fn foo<T: Default, F: FnOnce(T)>(f: F) {
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let input = T::default();
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f(input);
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}
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fn main() {
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foo(|a: <MyType as AsVariantTrait>::Type| {
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a.field;
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});
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}
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