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Code generator for Smalljava example [message #1690311]

Thu, 26 March 2015 14:34

Som 2015

Messages: 16
Registered: March 2015

Junior Member

Hello all

I was wondering whether there is a code generator for Smalljava example of the book, to generate actual Java code from the examples.

Thanks

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Re: Code generator for Smalljava example [message #1690313 is a reply to message #1690311]

Thu, 26 March 2015 14:38

Christian Dietrich

Messages: 13876
Registered: July 2009

Senior Member

No there is not. but it should not be too much work to create one

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[Updated on: Thu, 26 March 2015 14:38]

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Re: Code generator for Smalljava example [message #1690314 is a reply to message #1690313]

Thu, 26 March 2015 14:41

Som 2015

Messages: 16
Registered: March 2015

Junior Member

Thanks, in fact I am trying to make one. When it comes to generate code from expressions, I do not know how to access information about statements within the body of the methods. Can you give an example?

public class «it.name» {
«FOR m:it.members»
«IF m instanceof SJField»
«m.access.literal» «m.type.name» «m.name»;
«ELSE»
«IF m instanceof SJMethod»
«m.access.literal» «m.type.name» «m.name» (
«FOR p:m.params»
«p.type.name» «p.name» ,
«ENDFOR»

) {
«FOR s: m.body.statements»
//Can you give an example how to generate code for one statement....
«ENDFOR»
}
«ENDIF»

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Re: Code generator for Smalljava example [message #1690316 is a reply to message #1690314]

Thu, 26 March 2015 14:48

Christian Dietrich

Messages: 13876
Registered: July 2009

Senior Member

Hi have a look at the dispatch methods in Xtend


def dispatch toJavaStatement(SJVariableDeclaration it) '''
//TODO
'''
def dispatch toJavaStatement(SJReturn it) '''
return «expression.toJavaStatement»;
'''
def dispatch toJavaStatement(SJStringConstant it) '''
"«value»"
'''
//TODO other SJExpressions

def dispatch toJavaStatement(SJIfStatement it) '''
//TODO
'''

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