Implement generalized object and type parameter bounds (Fixes #16462)

1 files changed, 44 insertions, 0 deletions

diff --git a/src/test/compile-fail/kindck-send-object.rs b/src/test/compile-fail/kindck-send-object.rs
new file mode 100644
index 00000000000..99519263923
--- /dev/null
+++ b/src/test/compile-fail/kindck-send-object.rs
@@ -0,0 +1,44 @@
+// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// 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 Dummy+'static>(); //~ ERROR does not fulfill
+}
+
+fn box_object_with_no_bound_not_ok<'a>() {
+    assert_send::<Box<Dummy>>(); //~ ERROR does not fulfill
+}
+
+fn proc_with_no_bound_not_ok<'a>() {
+    assert_send::<proc()>(); //~ ERROR does not fulfill
+}
+
+fn closure_with_no_bound_not_ok<'a>() {
+    assert_send::<||:'static>(); //~ ERROR does not fulfill
+}
+
+fn object_with_send_bound_ok() {
+    assert_send::<&'static Dummy+Send>();
+    assert_send::<Box<Dummy+Send>>();
+    assert_send::<proc():Send>;
+    assert_send::<||:Send>;
+}
+
+fn main() { }