392310 - send(undefined) on newborn generator shouldn't cause error

Status: RESOLVED FIXED

(Rhino Graveyard :: Core, defect)

Description

[Norris Boyd]

SpiderMonkey:

js> function yielder() {
  print('before ye yield');
  yield;
  print('after ye yield');
}

js> var gen = yielder();
js> gen.send(undefined);
before ye yield

I.e. (per http://developer.mozilla.org/en/docs/New_in_JavaScript_1.7),
calling send(undefined) on a newborn generator is equivalent to calling
next() to start it.

Rhino:

js> gen.send(undefined)
js: "<stdin>", line 44: uncaught JavaScript runtime exception:
  TypeError: Attempt to send value to newborn generator

Comment 1

[Norris Boyd]

Checking in NativeGenerator.java;
/cvsroot/mozilla/js/rhino/src/org/mozilla/javascript/NativeGenerator.java,v  <--  NativeGenerator.java
new revision: 1.6; previous revision: 1.5
done

Comment 2

[Bob Clary [:bc] (inactive)]

Attachment: js1_7/geniter/regress-392310.js

Comment 3

[Norris Boyd]

Attachment: regress-392310.js

Updated proposed test to match Rhino error output.

Comment 4

[Bob Clary [:bc] (inactive)]

Checking in regress-392310.js;
/cvsroot/mozilla/js/tests/js1_7/geniter/regress-392310.js,v  <--  regress-392310.js
initial revision: 1.1