[Newbies] Re: More than 256 literals referenced.

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).

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More than 256 literals referenced. You must split or otherwise simplify this method. The 257th literal is: 4360

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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