Implement the function.sent proposal.

test/mjsunit/harmony/function-sent.js

Index: test/mjsunit/harmony/function-sent.js
diff --git a/test/mjsunit/harmony/function-sent.js b/test/mjsunit/harmony/function-sent.js
new file mode 100644
index 0000000000000000000000000000000000000000..f0e26b6e411a3391a5b9460de425e1e8f10282f1
--- /dev/null
+++ b/test/mjsunit/harmony/function-sent.js
@@ -0,0 +1,46 @@
+// Copyright 2016 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --harmony-function-sent
+

[rossberg, 2016/01/22 14:13:06]

Add tests using yield*.

[neis, 2016/01/27 16:49:40]

Done.

+
+{
+  function* g() { return function.sent }
+  assertEquals({value: 42, done: true}, g().next(42));
+}
+
+
+{
+  function* g() {
+    try {
+      yield function.sent;
+      yield function.sent;
+    } finally {
+      return function.sent;

[rossberg, 2016/01/22 14:13:06]

Maybe also have a test that yields in the finally clause?

[neis, 2016/01/27 16:49:40]

Done.

+    }
+  }
+
+
+  {
+    x = g();
+    assertEquals({value: 1, done: false}, x.next(1));
+    assertEquals({value: 2, done: false}, x.next(2));
+    assertEquals({value: 3, done: true}, x.next(3));
+  }
+
+
+  {
+    x = g();
+    assertEquals({value: 1, done: false}, x.next(1));
+    assertEquals({value: 2, done: true}, x.throw(2));
+  }
+}
+

[rossberg, 2016/01/22 14:13:06]

Once there is 'return', we should probably have more tests here, especially some
that yield after return. Perhaps add a TODO.

+
+assertThrows("function f() { return function.sent }", SyntaxError);
+assertThrows("() => { return function.sent }", SyntaxError);
+assertThrows("() => { function.sent }", SyntaxError);
+assertThrows("() => function.sent", SyntaxError);
+assertThrows("({*f() { function.sent }})", SyntaxError);
+assertDoesNotThrow("({*f() { return function.sent }})");