Hi All,

I juts had occasion to use generators in anger for the first time. I was trying to fnd out why a clone of a prse tree was reporting that it was not the same tree. Generators made enumerating all nodes in each tree together trivial:

| them |

them := Generator on: [:g| newTree nodesDo: [:n| g yield: n]].

parseTree nodesDo:

[:n| | twin |

twin := them next.

(n isSameAs: twin) ifFalse:

[self halt]]

My message though comes from noticing that generators yield their values via next, so why not use nextPut: instead of yield: ?

e.g. I think this is better:

| them |

them := Generator on: [:g| newTree nodesDo: [:n| g nextPut: n]].

parseTree nodesDo:

[:n| | twin |

twin := them next.

(n isSameAs: twin) ifFalse:

[self halt]]

_,,,^..^,,,_

best, Eliot