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Check if EObject is fully parsed [message #1730928]

Fri, 29 April 2016 21:57

tly .

Messages: 8
Registered: August 2014

Junior Member

I use a Switch<T> to visit an expression inside a method of the Validator class, that is annotated with '@Check'.

My problem is, that the method is called, although there are syntax errors in the parsed file.

My rule looks sth like that:

 
Definition: 
      type = Type def = VariableName ('=' val = Expression)? ';'

If the parsed file only contains "Int ; ", the Definition object is still generated, but with "null" inside its 'def' property.

Can I check somehow whether the used "EObject" is fully parsed?

Edit: I may know why this happens: I use a standalone setup and call

Diagnostician.INSTANCE.validate(model)

to validate my model. Is there a better way to call the validation outside the normal editor? Smile

[Updated on: Fri, 29 April 2016 22:07]

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Re: Check if EObject is fully parsed [message #1730932 is a reply to message #1730928]

Sat, 30 April 2016 05:46

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

you can check the models resource for syntax errors

Iterable<INode> errors = ((XtextResource) root.eResource()).getParseResult().getSyntaxErrors();

or you write a little logic that applys this logic to your node only
by retrieving the objects composite node, traverse it and ask the (child)nodes for a syntaxerrormessage != null

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: Check if EObject is fully parsed [message #1730934 is a reply to message #1730928]

Sat, 30 April 2016 05:44

Ed Willink

Messages: 7655
Registered: July 2009

Senior Member

Hi

Check at least eObject.eResource().getErrors(), and to be sure all
Resources in the ResourceSet and getWarnings() too.

Regards

Ed Willink

On 29/04/2016 22:57, tly. wrote:
> I use a Switch<T> to visit an expression inside a method of the
> Validator class, that is annotated with '@Check'.
>
> My problem is, that the method is called, although there are syntax
> errors in the parsed file.
>
> My rule looks sth like that:
>
> Definition: type = Type def = VariableName ('=' val =
> Expression)? ';'
>
>
> If the parsed file only contains "Int ; ", the Definition object is
> still generated, but with "null" inside its 'def' property.
> Can I check somehow whether the used "EObject" is fully parsed?

Report message to a moderator