[Newbies] Re: More than 256 literals referenced.
nicolas cellier
ncellier at ifrance.com
Mon Jul 23 21:33:59 UTC 2007
Robert Stehwien a écrit :
> What is the source of the error produced by the following code?
> ----------
> initialize
> table := OrderedCollection new.
>
> "there are 100 entries like what is below"
>
> table add: ({
> #value->2.
> #cost->-3.
> #step->2.
> #defense->3.
> #combatMove->7.
> #fullMove->14.
> #carry->10.
> #lift->20.
> #death->20.
> #unconscious->11.
> #woundThreshold->4.
> #recovery->0.5.
> #mysticArmor->0.
> } as: Dictionary).
> ----------
> More than 256 literals referenced.
> You must split or otherwise simplify this method.
> The 257th literal is: 4360
> ----------
>
> I'm trying to create a data table for a program and I'm wondering if
> I'm limited to 256 literals per class or method. I tried initilizing
> the table in multiple methods (setting 50 per method) but get the same
> error.
>
> I'll probably just put the data in a database and do the lookup when
> needed or load the table from a file. But I wanted to know the source
> of the problem.
>
> Thanks,
> Robert
The limitation is per-method.
Beware, message selectors count for 1 literal (except some special
selectors)
Also Class names or class variables consume 1 slot...
There, you have (#OrderedCollection -> OrderedCollection), #new, #add,
#->, #as: (#Dictionary -> Dictionary)...
There are other limitations, like number of argument per message, number
of temporary variables per method, number of instance variables per
class, length of blocks in an optimized ifTrue: [] ifFalse [] or []
whileTrue: [] or to:do:[] construct...
This is based on the assumption that a Smalltalk method SHOULD be small.
You can for example write as a workaround
table := Dictionary new.
#(
#(#value 2)
#(#cost 3)
#(#etc 0.1)
) do: [:pair | table at: pair first put: pair last].
Nicolas
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