34 lines
761 B
Rust
34 lines
761 B
Rust
// Test that we don't hit the recursion limit for short cycles involving lifetimes.
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// Shouldn't hit this, we should realize that we're in a cycle sooner.
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#![recursion_limit="20"]
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trait NotAuto {}
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trait Y {
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type P;
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}
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impl<'a> Y for C<'a> {
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type P = Box<X<C<'a>>>;
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}
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struct C<'a>(&'a ());
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struct X<T: Y>(T::P);
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impl<T: NotAuto> NotAuto for Box<T> {} //~ NOTE: required
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//~^ NOTE unsatisfied trait bound introduced here
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impl<T: Y> NotAuto for X<T> where T::P: NotAuto {}
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impl<'a> NotAuto for C<'a> {}
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fn is_send<S: NotAuto>() {}
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//~^ NOTE: required
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//~| NOTE: required
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fn main() {
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// Should only be a few notes.
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is_send::<X<C<'static>>>();
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//~^ ERROR overflow evaluating
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//~| 3 redundant requirements hidden
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//~| required for
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}
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