Re: [cdt-dev] Sample code for acessing the ast

[Wolfgang Kaifler <kaiflerw@xxxxxx>]

Hello,

yes thanks a lot. I know this two talks. And yes, i am able to acess the 
ast via visitor.
But i am not able to do any node insertion oder deletion.
There is a ASTRewrite at org.eclipse.cdt.core.dom.rewrite, but i get 
some IllegalArgumentException.
I tried the following:

 MyAstVisitor visitor = new MyAstVisitor();
 ast.accept(visitor);
 System.out.println("The RawSignature is: " + 
visitor.node.getRawSignature());
 System.out.println("This AST contains node: " 
+ast.contains(visitor.node));
 ASTRewrite rewrite = ASTRewrite.create(ast);
 rewrite.remove(visitor.node, null);               // here the 
Exception occures
 Change change = rewrite.rewriteAST();

An I get:
The rawSignature is: f
This AST contains node: true
java.lang.IllegalArgumentException
   at 
org.eclipse.cdt.core.dom.rewrite.ASTRewrite.checkBelongsToAST(ASTRewrite.java:188)
   at 
org.eclipse.cdt.core.dom.rewrite.ASTRewrite.remove(ASTRewrite.java:90)


Thanks
Wolfgang

> Do you know about the "DOM AST View" that's part of the CDT testing 
> plugin?
> It's an optional feature in the full update site.
> The PLDT analysis features do alot of work with the CDT's AST.
> There are some examples here: 
> http://www.eclipsecon.org/2008/?page=sub/&id=373 
> <http://www.eclipsecon.org/2008/?page=sub/&id=373>
> http://www.eclipsecon.org/2007/index.php?page=sub/&id=3903 
> <http://www.eclipsecon.org/2007/index.php?page=sub/&id=3903>
> The more complex features referred to in the first talk concentrate on 
> C, not C++.
>
> However the basic analysis in PLDT utilizes some of the APIs for C++ - 
> there's a Cpp visitor in there too.
> In the org.eclipse.ptp.pldt.mpi.core project, see the 
> org.eclipse.ptp.pldt.mpi.core.analysis.MpiCPPASTVisitor class
>
> I don't think we do any node insertion or deletion, but hopefully this 
> helps.
>
>
>
> ...Beth
>
> Beth Tibbitts
> Eclipse Parallel Tools Platform http://eclipse.org/ptp
> IBM STG Communications Protocols and Tools
> Mailing Address: IBM Corp., Coldstream Research Campus, 745 West New 
> Circle Road, Lexington, KY 40511
>
> Inactive hide details for Wolfgang Kaifler ---03/18/2010 05:30:35 
> PM---Hallo, i want do do a little bit code analysis in c++. TWolfgang 
> Kaifler ---03/18/2010 05:30:35 PM---Hallo, i want do do a little bit 
> code analysis in c++. Therefore i use the
>
>
> From: 	
> Wolfgang Kaifler <kaiflerw@xxxxxx>
>
> To: 	
> cdt-dev@xxxxxxxxxxx
>
> Date: 	
> 03/18/2010 05:30 PM
>
> Subject: 	
> [cdt-dev] Sample code for acessing the ast
>
> Sent by: 	
> cdt-dev-bounces@xxxxxxxxxxx
>
> ------------------------------------------------------------------------
>
>
>
> Hallo,
>
> i want do do a little bit code analysis in c++. Therefore i use the
> eclipse cdt parser which works fine for me :-) I wrote a few visitor
> patterns, so i am able to find some nodes on the AST.
> Now i want to to delete or insert new Nodes.
> This ist not for a PlugIn, I only want to transform the AST.
> Is there any sample Code to do this? Or is there any site to start with?
>
> Thanks
> Wolfgang
>
>
>
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