mirror of https://github.com/rust-lang/rust
27 lines
801 B
Rust
27 lines
801 B
Rust
// Test which of the builtin types are considered sendable. The tests
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// in this file all test the "kind" violates detected during kindck.
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// See all `regions-bounded-by-send.rs`
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fn assert_send<T:Send>() { }
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trait Dummy { }
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trait Message : Send { }
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// careful with object types, who knows what they close over...
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fn object_ref_with_static_bound_not_ok() {
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assert_send::<&'static (dyn Dummy + 'static)>();
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//~^ ERROR `&'static (dyn Dummy + 'static)` cannot be sent between threads safely [E0277]
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}
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fn box_object_with_no_bound_not_ok<'a>() {
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assert_send::<Box<dyn Dummy>>();
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//~^ ERROR `dyn Dummy` cannot be sent between threads safely
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}
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fn object_with_send_bound_ok() {
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assert_send::<&'static (dyn Dummy + Sync)>();
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assert_send::<Box<dyn Dummy + Send>>();
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}
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fn main() { }
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