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Postorder traversal of AST during validation. [message #759799]

Wed, 30 November 2011 06:48

Victor Zverovich

Messages: 1
Registered: November 2011

Junior Member

Xtext validation checks are executed in preorder traversal of the AST. This is quite inconvenient in particular for expressions where one often wants postorder (subexpressions validated first). Is it possible to configure the traversal that is used during validation?

Thanks,
Victor

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Re: Postorder traversal of AST during validation. [message #759813 is a reply to message #759799]

Wed, 30 November 2011 07:48

Sebastian Zarnekow

Messages: 3118
Registered: July 2009

Senior Member

Hi Victor,

you may want to bind your own CancellableDiagnostician and customize the
model traversal there.

Regards,
Sebastian
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Am 30.11.11 07:48, schrieb Victor Zverovich:
> Xtext validation checks are executed in preorder traversal of the AST.
> This is quite inconvenient in particular for expressions where one often
> wants postorder (subexpressions validated first). Is it possible to
> configure the traversal that is used during validation?
>
> Thanks,
> Victor

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