G'day
This is an inconsistency with CF that Railo shares with BD. I'm not
sure why my tests show this up on Railo but not BD though... I need to
look at that... hmmm...
Anyway, some code:
<!--- Numbers.cfc --->
<cfcomponent>
<cfset variables.aNumbers = listToArray("tahi,rua,toru")>
<cffunction name="getNumbers" returntype="array">
<cfreturn variables.aNumbers>
</cffunction>
</cfcomponent>
<!--- caller.cfm --->
<cfset o = createObject("component", "Numbers")>
<cfset aNumbers1 = o.getNumbers()>
<cfset arrayAppend(aNumbers1, "wha")>
<cfdump var="#aNumbers1#">
<cfset aNumbers2 = o.getNumbers()>
<cfset arrayAppend(aNumbers2, "wha")>
<cfdump var="#aNumbers2#">
Now, because - I guess - CF copies the array when it's assigned to a
new variable, I just end up with "tahi, rua, toru, wha" in the second
dump (which is what I'd expect). On BD (Open & .NET), and Railo, I
guess it's just referencing the one array throughout, so I get "tahi,
rua, toru, wha, wha".
I realise the way CF handles arrays is a bit of an idiosyncracy cf
other complex data types, but given the precedent is set, should not
the other engines follow suit?
[...]
--
Adam
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