Re: [cdt-dev] How to access C/C++ source structure thru API

[Subramanian Neelakantan <subramanian.neelakantan@xxxxxxxxxx>]

Ok, this is what I have figured out.
 Kindly validate my understanding.

The CModel is just a structural parse
(or a quick parse) of the C/C++ source file. This means that the function
bodies, expressions, etc will not be parsed. We can get to this model using
the CModelBuilder.parse(boolean) method.

The CDOM AST is the complete parse of
the C/C++ source file. This should be used if "all" of the C/C++
source is required to be parsed.

What I am still trying to figure out
is the relation between the two packages - "org.eclipse.cdt.core.dom.ast"
and "org.eclipse.cdt.core.parser.ast".  Both of these seem
to have an AST representation of the C/C++ source. Could anyone kindly
highlight the difference between these two packages, and which type of
parse generates each of these ASTs?

Thanks,
Subbu

----- Forwarded by Subramanian
Neelakantan/India/IBM on 10/24/2005 10:49 AM -----

Subramanian Neelakantan/India/IBM@IBMIN
Sent by: cdt-dev-bounces@xxxxxxxxxxx

10/23/2005 07:59 PM

Please respond to
"CDT General developers list."

To	cdt-dev@xxxxxxxxxxx
cc
Subject	[cdt-dev] How to access C/C++ source structure thru API

I find two ways to read a C/C++ source file using the CDT framework.

1.         Use ISourceReference.getTranslationUnit()
on a IFile to get to the ITranslationUnit. 
        Call ITranslationUnit.parse(), and then browse
around the org.eclipse.cdt.core.model package elements (eg. using IParent.getChildrenOfType(int),
and access the ICElement tree hierarchy) 

2.         Use CDOM.getInstance().getASTService().getTranslationUnit(
                    
                     
             IFile,
                    
                     
             CDOM.getInstance().getCodeReaderFactory(CDOM.PARSE_SAVED_RESOURCES));
        Then use IASTTranslationUnit.getDeclarations()
method to get to the AST tree and browse around the org.eclipse.cdt.core.dom.ast
package elements. 

Are both of these valid? Which is the recommended way to access the contents
of a C/C++ source file? What are the differences between these two packages
(org.eclipse.cdt.core.model and org.eclipse.cdt.core.dom.ast) ?

Thanks,
Subbu _______________________________________________
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