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Explanation of Binding in layman terms? [message #1766835]

Tue, 27 June 2017 23:39

Robert Huang

Messages: 3
Registered: June 2017

Junior Member

Hi XText community. I just started using XText, and I tried understanding binding and writing scoping methods using the documentation but couldn't get it. If someone can explain where to write scoping methods and how in a DSL and what binding is would be extremely helpful.

[Updated on: Mon, 03 July 2017 00:03]

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Re: Explanation of Binding in layman terms? [message #1766901 is a reply to message #1766835]

Wed, 28 June 2017 16:06

Christian Dietrich

Messages: 14067
Registered: July 2009

Senior Member

if you create a dsl with the wizard you get

<MyDsl>ScopeProvider.xtend pregenerated.
simply open it and override getScope

class MyDslScopeProvider extends AbstractMyDslScopeProvider {
	
	override getScope(EObject context, EReference reference) {
		// TODO implement
		super.getScope(context, reference)
	}

}

- use parameter reference to find out which reference you scope.
- use parameter context to find out where you are and to navigate through the model

https://de.slideshare.net/holgerschill/deep-dive-into-xtext-scoping-local-and-global-scopes-explained

Need professional support for Xtext, Xpand, EMF?
Go to: https://www.itemis.com/en/it-services/methods-and-tools/xtext
Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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