29 lines
628 B
Rust
29 lines
628 B
Rust
// build-pass (FIXME(62277): could be check-pass?)
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// Regression test related to #56288. Check that a supertrait projection (of
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// `Output`) that references `Self` can be ok if it is referencing a projection (of
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// `Self::Target`, in this case). Note that we still require the user to manually
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// specify both `Target` and `Output` for now.
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trait Base {
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type Output;
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}
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trait Helper: Base<Output=<Self as Helper>::Target> {
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type Target;
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}
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impl Base for u32
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{
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type Output = i32;
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}
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impl Helper for u32
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{
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type Target = i32;
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}
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fn main() {
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let _x: Box<dyn Helper<Target=i32, Output=i32>> = Box::new(2u32);
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}
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