many thx, tbrunz! i (and anybody who follows) much appreciate the thoughtful
elucidation -- i did indeed assume that ifTrue: would return its argument
as-is. Now that i go spellunking through source I see:
ifTrue: alternativeBlock
"If the receiver is false (i.e., the condition is false), then the
value is
the
false alternative, which is nil. Otherwise answer the result of
evaluating
the argument, alternativeBlock. Create an error notification if the
receiver is nonBoolean. Execution does not actually reach here because
the expression is compiled in-line."
--
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