mirror of https://github.com/rust-lang/rust
26 lines
492 B
Rust
26 lines
492 B
Rust
// Ref: https://github.com/rust-lang/rust/issues/23563#issuecomment-260751672
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pub trait LolTo<T> {
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fn convert_to(&self) -> T;
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}
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pub trait LolInto<T>: Sized {
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fn convert_into(self) -> T;
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}
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pub trait LolFrom<T> {
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fn from(_: T) -> Self;
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}
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impl<'a, T: ?Sized, U> LolInto<U> for &'a T where T: LolTo<U> {
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fn convert_into(self) -> U {
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self.convert_to()
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}
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}
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impl<T, U> LolFrom<T> for U where T: LolInto<U> {
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fn from(t: T) -> U {
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t.convert_into()
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}
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}
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