AST source interval isn't changed

Hello,

I have MyTextModel class - a subclass of TextModel, it holds an ast of it's text.
When I replace node of the ast using replaceWith: ast is changed, then I say text: ast formattedCode, so the text is changed too.
But! when I inspect new ast(after replacing some node), I see that source interval isn't changed. Why?
If I say bestNodeFor: someInterval, it doesn't give me the right node, because sourceInterval of ast wasn't changed, and I don't know why.
Hope you will help me out:)

Best,
Mark

On 11 Aug 2014, at 10:09, Mark Rizun <[hidden email]> wrote:
I guess the AST is never used like that (it is re-created from source after
a change normally).

But I think we should fix it.. it should be possible to do multiple things with it
and it should stay consistent.

        Marcus

Le 11/08/2014 10:09, Mark Rizun a écrit : It is possible to update the positions, but this isn't easy to do (and
not what an ast user may want in some cases).

In practice, when playing with asts this way, you even specifically want
to keep the positions of the original ast nodes (and another numbering
for the insertions : replacements) so that, if needed, you can make the
distinction between the original nodes and the added nodes.

In short, I would suggest a reparse, especially if you have produced the
output. It will also ensure that bindings and all are properly rebuilt.

Thierry