Generator yielded assignments leave stray code.

[kkirby]

Hello.

My title is pretty awful, I realize. But I wasn't sure how to succinctly describe this issue.

Anyways, if you have a generator with a yielded assignment to an object, the result will leave stray code.

If you have this:

let setup = promise! #()*
    @asdf := yield something()
    doSomethingElse()

The result will have something like this:

case 1:
      _this.asdf = _received;
      _this.asdf;
      ++_state;
      return { done: true, value: doSomethingElse() };

If you see, there is a stray _this.asdf. If you leave out the doSomethingElse() call, then as expected, the stray code will be returned as the value.

This isn't a huge bug, but it spits out a lot of warnings when using Google Closure Compiler.

[kkirby]

This is fixed in my community repo