Attempt to modify invariant object, anArray

Thank you guys..I was indeed making some default instances with this literal arrays..and this was the first time I have to edit those..

Thanks!

On Fri, Jun 3, 2016 at 8:46 PM, Richard Sargent <[hidden email]> wrote:

On Fri, Jun 3, 2016 at 1:30 PM, Mariano Martinez Peck via Glass <[hidden email]> wrote:

Hi guys,

Quick email as I must leave now... I am trying to run this code:

tableSpec table do: [ :aRow |

| value |

value := (aRow at: 2) = 'L' ifTrue: [ 'Left' ] ifFalse: [ 'Right' ].

        aRow at: index put: value 

].

the 'aRow' array is as simple as anArray ('Price' , 'R', '', '') ...

Looks like a problem of passing the array as argument... 

The error I get is:

" ArgumentTypeError(AbstractException)>>_signalFromPrimitive: @5 line 15a ArgumentTypeError occurred (error 2031), reason:markWritten.b, Attempt to modify invariant object, anArray

I just don't get it.. grrr must run now..

Hi Mariano,

Given what you have described, the most likely cause is passing in a literal array. That guess is further reinforced by using the name "tableSpec".

e.g.

#(

('Price', 'R', '', '')

('Quantity', 'R', '', '')

('Cost', 'R', '', '')

)

-- Richard

Cheers, 

--

Mariano
http://marianopeck.wordpress.com

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Mariano
http://marianopeck.wordpress.com

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