32 lines
448 B
Rust
32 lines
448 B
Rust
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//@ known-bug: #92470
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fn main() {
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encode(&mut EncoderImpl);
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}
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pub trait Encoder {
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type W;
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fn writer(&self) -> Self::W;
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}
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fn encode<E: Encoder>(mut encoder: E) {
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encoder.writer();
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encode(&mut encoder);
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}
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struct EncoderImpl;
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impl Encoder for EncoderImpl {
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type W = ();
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fn writer(&self) {}
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}
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impl<'a, T: Encoder> Encoder for &'a mut T {
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type W = T::W;
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fn writer(&self) -> Self::W {
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panic!()
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}
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}
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