Re: Java 1.5

["Etienne M. Gagnon" <egagnon@xxxxxxxxx>]

Hi Duarte,

Is there any specific reason for you to want to modify the tree? Why not 
directly generate the text of modified classes using a tree walker?

e.g.

/* Note: I am using approximate names; I have not looked at the Java 1.5 
grammar
   to select the appropriate names. */

... void inAClassDeclaration(...) {
  String className = node.getName();
  print(className + "_Validate extends " + className);
  node.getClassBody().apply(this);
}

That would seem much easier, to me, than modifying the tree.

Etienne

Duarte Martins wrote:
> Hey there! 
>
> I'm working with Java 1.5 Grammar provided by SableCC in its web page. 
> My goal in this step is kind of duplicating each class which appears 
> in a Java File, changing it's name and inheriting from the class itself.
>
> For example
>
> class A { }
> class B { }
>
> would generate the following classes:
>
> class A_Validate extends A { }
> class B_Validate extends B { }
>
> I am creating a ANormalClassDeclaration node, to represent each of 
> this new classes, and setting it's parameters equals to each main 
> class. The problem is that when I make "newClass.setClassBody( 
> mainClass.getClassBody() )" , the main class will no more have this 
> class body. I mean, I don't want to remove main classes, only to add 
> the new ones to the tree. I want to keep the same body in each pair of 
> classes (main and generated one), but I think I must clone somehow the 
> classes' bodies. Is there any easy way to solve my problem?
>
> (for each class, final result in my program is now: class A class 
> A_Validate extends A { } )

--
Etienne M. Gagnon, Ph.D.
SableCC:                                            http://sablecc.org