Eclipse Community Forums: TMF (Xtext) » Grammar causing outofmemory error

Home » Modeling » TMF (Xtext) » Grammar causing outofmemory error(Inheritance of grammar casuing GenerateXXX to hang)

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

Grammar causing outofmemory error [message #891536]

Mon, 25 June 2012 07:48

Subhrojyoti Roy Chaudhuri

Messages: 2
Registered: June 2012

Junior Member

I am attaching the grammar that causes the GenerateDementor workflow to hang. I tried to debug the grammar and found out that the actual problem is in the following definition. If I comment it out then the entire generation goes through without any problems. Could please take a look.

AbstractOS:
OS | LinuxOS | UnixOS
;

Thanks for the help!

Subhro

Attachment: Dementor.xtext
(Size: 1.17KB, Downloaded 243 times)

Report message to a moderator

Re: Grammar causing outofmemory error [message #891745 is a reply to message #891536]

Mon, 25 June 2012 18:10

masija .

Messages: 59
Registered: July 2010

Member

Hi Subhro,

I think, you forgot the brackets...
This works fine for me, give it a try.

OS: 
	'OS:' name = ID
  	(('vendor name' vname = STRING)? &
	('OS version' version = INT) &
	(features+=Feature)*)
	'end OS'
;

LinuxOS: 
	'Linux OS:' name = ID
  	(('vendor name' vname = STRING)? &
	('Linux version' version = INT) &
	((features+=Feature)?)*)
	'end Linux OS'
;

UnixOS: 
	'Unix OS:' name = ID
  	(('vendor name' vname = STRING)? &
	('unix version' version = INT) &
	((features+=Feature)?)*)
	'end Unix OS'
;

[Updated on: Mon, 25 June 2012 18:49]

Report message to a moderator