32 lines
1.1 KiB
Rust
32 lines
1.1 KiB
Rust
use std::marker::PhantomData;
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struct Foo<'a, 'b, T>(PhantomData<(&'a (), &'b (), T)>)
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where
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Foo<'short, 'out, T>: Convert<'a, 'b>;
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//~^ ERROR mismatched types
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//~^^ ERROR mismatched types
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//~^^^ ERROR use of undeclared lifetime name
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//~| ERROR use of undeclared lifetime name `'out`
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trait Convert<'a, 'b>: Sized {
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fn cast(&'a self) -> &'b Self;
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}
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impl<'long: 'short, 'short, T> Convert<'long, 'b> for Foo<'short, 'out, T> {
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//~^ ERROR use of undeclared lifetime name
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//~^^ ERROR use of undeclared lifetime name `'out`
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//~| ERROR cannot infer an appropriate lifetime for lifetime parameter
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fn cast(&'long self) -> &'short Foo<'short, 'out, T> {
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//~^ ERROR use of undeclared lifetime name
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//~| ERROR cannot infer an appropriate lifetime for lifetime parameter
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self
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}
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}
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fn badboi<'in_, 'out, T>(x: Foo<'in_, 'out, T>, sadness: &'in_ Foo<'short, 'out, T>) -> &'out T {
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//~^ ERROR use of undeclared lifetime name
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//~^^ ERROR incompatible lifetime on type
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//~| ERROR `x` has lifetime `'in_` but it needs to satisfy a `'static` lifetime requirement
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sadness.cast()
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}
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fn main() {}
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