28 lines
757 B
Rust
28 lines
757 B
Rust
// run-pass
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// aux-build:trait_superkinds_in_metadata.rs
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// Tests "capabilities" granted by traits with super-builtin-kinds,
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// even when using them cross-crate.
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extern crate trait_superkinds_in_metadata;
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use std::sync::mpsc::{channel, Sender, Receiver};
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use trait_superkinds_in_metadata::{RequiresRequiresShareAndSend, RequiresShare};
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#[derive(PartialEq, Debug)]
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struct X<T>(T);
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impl <T: Sync> RequiresShare for X<T> { }
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impl <T: Sync+Send> RequiresRequiresShareAndSend for X<T> { }
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fn foo<T: RequiresRequiresShareAndSend + 'static>(val: T, chan: Sender<T>) {
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chan.send(val).unwrap();
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}
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pub fn main() {
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let (tx, rx): (Sender<X<isize>>, Receiver<X<isize>>) = channel();
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foo(X(31337), tx);
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assert_eq!(rx.recv().unwrap(), X(31337));
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}
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