This was fixed in April 2010 to use pragmas, looks like the original poster uses an old version. 2010/10/25 Mariano Martinez Peck <marianopeck@gmail.com>:

lukas?

---------- Forwarded message ---------- From: Chris Muller <asqueaker@gmail.com> Date: Mon, Oct 25, 2010 at 6:16 PM Subject: [squeak-dev] bug in OBMetagraphBuilder>>#reference To: squeak dev <squeak-dev@lists.squeakfoundation.org>

Hi, I just wanted to let the maintainers of OmniBrowser know, there is a bug with this method.

The method reflects on its class and performs all that begin with #populate.  However, it is not unusual to expect that someone's application might have a selector that also begins with the word 'populate'.  And so those selectors would be performed as well.

This is why, for cases like this, it is better for a tool, which is just a means, not an end, to be polite with the namespace; such as checking for 'obPopulate' perhaps rather than simply 'populate'.

But that's just a mini-rant, not even the bug.  The bug is, my 'populate' is not a unary message, so I get a failure on the perform, "incorrect number of arguments."

I therefore always change the method to:

OBMetagraphBuilder >> execute        ((self class allSelectors select: [:ea | (ea beginsWith: 'populate') and: [ ea isUnary ]]) asSortedArray)                do: [:selector | self perform: selector].        ^ self root

Thank you,  Chris

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