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RE: [cdt-dev] Using CDT API to get C-AST
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The proper way to get an AST now (I think, I'm starting to lose track as
I've been busy up in build/debug-land), is off the ITranslationUnit using
getAST().
As for your exception, what was the exception? That's important information.
Was it a ClassCastException? That would mean your IFile wasn't a
ITranslationUnit. You should always check the types before doing a cast.
Doug Schaefer, QNX Software Systems
Eclipse CDT Project Lead, http://cdtdoug.blogspot.com
> -----Original Message-----
> From: cdt-dev-bounces@xxxxxxxxxxx [mailto:cdt-dev-bounces@xxxxxxxxxxx] On
> Behalf Of rainman
> Sent: Thursday, May 31, 2007 1:58 PM
> To: cdt-dev@xxxxxxxxxxx
> Subject: [cdt-dev] Using CDT API to get C-AST
>
>
> Hello All,
> I am new to CDT and trying to do something with cdt since last 1 month. I
> have searched many sites and mailed in cdt news portal as well. Please
> help
> me some one.
>
> >From this list I found some thing like below but failed to get the
> declaration of class to pass in IFile:
> IFile file = ...
> IASTTranslationUnit ast =
> CDOM.getInstance().getTranslationUnit(file);
> CPPNameCollector col = new CPPNameCollector();
> ast.accept(col);
>
> Iterator i = col.nameList.iterator();
> while (i.hasNext()) {
> IASTName n = (IASTName) i.next();
> IBinding binding = n.resolveBinding();
>
> if(binding instanceof CPPClassType) {
> // do something with the class
> }
> }
>
>
> Also from another email I got something like below but when i pass
> Path(file
> location) it gives some exception with workspace and exits at first line
> of
> if block.
>
> ICElement cFile = CoreModel.getDefault().create(IPath);
> if(cFile != null)
> {
> ITranslationUnit trUnit = (ITranslationUnit) cFile;
> ICElement[] elts = trUnit.getChildren();
> if(elts != null)
> {
> for(int i=0; i<elts.length; i++)
> {
> System.out.println(elts[i].getElementName());
> System.out.println(elts[i].getElementType());
> }
> }
> }
>
> Any simple idea or link indication will be appreciable. I've been trying
> with the CDOM cause according to Doug Schaefer that is the starting point
> for creating AST. I want to traverse the AST to get the idea which
> statements using global variable. Change those statements and unparse to
> get
> the changed source.
> For this i created and searched the cdt doc. I got the idea that i need to
> check:
>
> IDeclaration.getElementType() == ICElement.C_VARIABLE
>
> To get the global variable type. But couldn't the idea how to get the
> IDeclaration from the IASTDeclaration (if i can successfully get ast that
> is
> :-).
>
> Also i got some knowledge that in IDeclaration there is
> ISourceManipulation
> which might be in help for ast modification. But not sure about the AST
> unparse or pretty printer help yet.
>
> Thank you for your patience.
> Hope to get some positive and fast response.
> Regards.
> A.Rahman
> --
> View this message in context: http://www.nabble.com/Using-CDT-API-to-get-
> C-AST-tf3847998.html#a10898933
> Sent from the Eclipse CDT - Development mailing list archive at
> Nabble.com.
>
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