Looking at ProtoObject>>ifNotNil: ifNotNilBlock
	"Evaluate the block, unless I'm == nil (q.v.)"

	^ ifNotNilBlock valueWithPossibleArgs: {self}ifNotNil:


... which is invoked if the receiver is not nil, I would expect the  
following to work:

5 ifNotNil: [:e |  e] to return 5, but what I get is:
	
	argument of ifNotNil: must be a 0-argument block
	
	
However, if first store the block in a temp:

	ab := [:e | e]

5 ifNotNil: ab.


returns 5

I don't understand what the difference is between these; could some  
kind soul enlighten me as what is happening?


Cheers,

Brian