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Variable declaration [message #899570]

Wed, 01 August 2012 09:25

Laigle jérôme
Messages: 26
Registered: August 2012

Junior Member

Hi,

I'm working on a DSL where it should be possible to differ between a declaration of a element and the definition of a element. For example:

dcl a%=10
dcl b% = 42
a = 12
b=30
b=a

So, I've started with the following construct

VariableName:
name=ID type=Type
;

VariableDeclaration :
'dcl' variableName=VariableName

;
VariableReference:
variableName=[VariableName|ID]
;

VariableAssignment:
variable=[VariableReference] '=' value=VariableValue
;

VariableValue:
{VariableValue}
(variableReference =VariableReference)?
//(value=Value)?
(value=NUMBER)?
;

whereas Type refers to my defined types. I've thought it might be an idea to use cross references like in the following fragment

VariableDef:
name=[VariableDeclaration] '=' INT;

But that's not working and I doubt that this is the right way. I'm new to Xtext and so this question might be quite stupid. Maybe somebody has an idea or can point me into the right direction? Thanks in advance!

Best regards,
Jérôme

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[Message index]

		Variable declaration By: Laigle jérôme on Wed, 01 August 2012 09:25
		Re: Variable declaration By: Henrik Lindberg on Wed, 01 August 2012 09:36
		Re: Variable declaration By: Laigle jérôme on Wed, 01 August 2012 10:46
		Re: Variable declaration By: Charalampos Alexopoulos on Wed, 01 August 2012 10:47

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