Eclipse Community Forums: TMF (Xtext)

Help

Home

Home » Modeling » TMF (Xtext) » duplicate validation

Show: Today's Messages :: Show Polls :: Message Navigator

duplicate validation [message #1198438]

Wed, 20 November 2013 10:17

Simon Ziehme

Messages: 22
Registered: November 2013

Junior Member

I'm a Xtext newbie!

At the moment, i have implement my grammar and i can start a runtime eclipse to testing my editor.
Now, i will validate the code.
How can i check because duplicated identifier?

For Example:

Grammar:

Layer:
	'Layer' name=ID '{'
	description=Description
	('RequiredLayer' reqlayer+=[Layer|ID])?
	'}';

How can i prohibit doublets (layer name must be unique)?

Tanks
Simon

Report message to a moderator

Re: duplicate validation [message #1198891 is a reply to message #1198438]

Wed, 20 November 2013 15:15

Uli Merkel

Messages: 250
Registered: June 2013

Senior Member

in your GenerateMyDsl.mwe2 file next to your xtext file, uncomment the NamesAreUniqueValidator
// Xtend-based API for validation
fragment = validation.ValidatorFragment auto-inject {
// composedCheck = "org.eclipse.xtext.validation.ImportUriValidator"
// composedCheck = "org.eclipse.xtext.validation.NamesAreUniqueValidator"

Report message to a moderator