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22 lines
643 B
Rust
22 lines
643 B
Rust
// run-pass
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trait TraitWithSend: Send {}
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trait IndirectTraitWithSend: TraitWithSend {}
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// Check struct instantiation (Box<TraitWithSend> will only have Send if TraitWithSend has Send)
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#[allow(dead_code)]
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struct Blah { x: Box<dyn TraitWithSend> }
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impl TraitWithSend for Blah {}
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// Struct instantiation 2-levels deep
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#[allow(dead_code)]
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struct IndirectBlah { x: Box<dyn IndirectTraitWithSend> }
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impl TraitWithSend for IndirectBlah {}
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impl IndirectTraitWithSend for IndirectBlah {}
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fn test_trait<T: Send + ?Sized>() { println!("got here!") }
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fn main() {
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test_trait::<dyn TraitWithSend>();
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test_trait::<dyn IndirectTraitWithSend>();
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}
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