> On 09 Feb 2015, at 21:31, stepharo <[email protected]> wrote:
> 
> Hi
> 
> today during a lecture I was quite surprised to see the name of the AST 
> variables.
> There is no easy way to see that a variable is a position in the text or a 
> subtree.
> 
> Example
> 
> RBValueNode subclass: #RBArrayNode
>    instanceVariableNames: 'left right statements periods'
>    classVariableNames: ''
>    category: 'AST-Core-Nodes'
> 
> RBValueNode subclass: #RBBlockNode
>    instanceVariableNames: 'left right colons arguments bar body scope'
>    classVariableNames: ''
>    category: 'AST-Core-Nodes'
> 
> Annoying because you have always to think (yes I know I'm stupid not knowing 
> by heart the tree structure)
> to know if you get a tree under your fingers. We can definitively better in 
> terms of code habilitability.
> We cleaned the visitor and since then the code is much much much better.
> 

Yes, better readable variables would be nice.

> 
> I would do the following
> 
> RBValueNode subclass: #RBArrayNode
>    instanceVariableNames: 'leftParenthesisPosition rightParenthesisPosition 
> statements periodsPosition'
>    classVariableNames: ''
>    category: 'AST-Core-Nodes'
> 
> I would be also ok with
> 
> RBValueNode subclass: #RBArrayNode
>    instanceVariableNames: 'leftPosition rightPosition statements 
> periodsPosition'
>    classVariableNames: ''
>    category: 'AST-Core-Nodes'
> 
> RBValueNode subclass: #RBBlockNode
>    instanceVariableNames: 'leftPosition rightPosition colonsPosition 
> arguments barPosition body scope'
>    classVariableNames: ''
>    category: 'AST-Core-Nodes'
> 


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