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Diffstat (limited to 'tests/ui/kindck/kindck-send-object.rs')
-rw-r--r-- | tests/ui/kindck/kindck-send-object.rs | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/tests/ui/kindck/kindck-send-object.rs b/tests/ui/kindck/kindck-send-object.rs new file mode 100644 index 000000000..6411e688b --- /dev/null +++ b/tests/ui/kindck/kindck-send-object.rs @@ -0,0 +1,26 @@ +// Test which of the builtin types are considered sendable. The tests +// in this file all test the "kind" violates detected during kindck. +// See all `regions-bounded-by-send.rs` + +fn assert_send<T:Send>() { } +trait Dummy { } +trait Message : Send { } + +// careful with object types, who knows what they close over... + +fn object_ref_with_static_bound_not_ok() { + assert_send::<&'static (dyn Dummy + 'static)>(); + //~^ ERROR `(dyn Dummy + 'static)` cannot be shared between threads safely [E0277] +} + +fn box_object_with_no_bound_not_ok<'a>() { + assert_send::<Box<dyn Dummy>>(); + //~^ ERROR `dyn Dummy` cannot be sent between threads safely +} + +fn object_with_send_bound_ok() { + assert_send::<&'static (dyn Dummy + Sync)>(); + assert_send::<Box<dyn Dummy + Send>>(); +} + +fn main() { } |