Eclipse Community Forums: TMF (Xtext) » How to customize the content assist in the editor

Help

Home

Home » Modeling » TMF (Xtext) » How to customize the content assist in the editor

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

How to customize the content assist in the editor [message #689208]

Mon, 27 June 2011 07:20

Nidhi

Messages: 92
Registered: December 2009

Member

Hi,

I have the following use case:-

I have written a simple grammar for comparison expression:
"Age < 18"

ComparisonExpression:
(variable=[Variable]) '<' INT | (variable=[Variable]) '<' STRING;

where [Variable] is referred from another ecore model. With a lot of help in earlier thread I was able to get the content assist in my generated editor for instances of [Variable] at runtime.

I have the following query:
The entity [Variable] has an attribute called type which can be "java.lang.Integer" or "java.lang.String". In my editors content assist I want the RHS of the expression to be suggested as "INT" if the type of the [Variable] is "java.lang.Integer" and "STRING" if the type of the [Variable] is "java.lang.String".

Also in one of the previous posts Christian did mention to override the content assist for the editor but there is no content assist for these terminal rules such as INT and STRING.

I wanted some help to figure out how this can be done.

Thanks,
Best Regards,
Nidhi

Report message to a moderator

Re: How to customize the content assist in the editor [message #689222 is a reply to message #689208]

Mon, 27 June 2011 07:36

Alexander Nittka

Messages: 1193
Registered: July 2009

Senior Member

Hi,

I'd say you rather want something like

ComparisonExpression:
(variable=[Variable]) '<' value=Value;

Value: IntValue|StringValue;
IntValue:INT;
StringValue:STRING;

Then there is a content assist method for ComparisonExpression_Value that you can adapt depending on the type of variable.

Alex

Need training, onsite consulting or any other kind of help for Xtext?
Go visit http://xtext.itemis.com or send a mail to xtext@itemis.de

Report message to a moderator

Previous Topic:	(no subject)
Next Topic:	[Xtext 2.0]Cross-References to work with existing EPackages

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

]

Current Time: Sun May 12 22:14:52 GMT 2024

.:: Contact :: Home ::.

Breadcrumbs

Sign up to our Newsletter