Re: [cdt-dev] Eclipse CDT: Modify and save AST

[Jonah Graham <jonah@xxxxxxxxxxxxxxxx>]

I have just seen you replied to my comment on SO[1]. My initial
comment may not have been as helpful as you would have liked because I
was confused by you saying it was similar to [2] which may have other
issues, but is certainly being run in main. I have now seen your later
comments where you indicate you are indeed running as plug-ins.

Have you looked at what is in the CDT source code, for example
org.eclipse.cdt.core.parser.tests.rewrite.comenthandler.CommentHandlingWithRewriteTest.runTest()
is a pretty small use case of ast rewriting.

[1] http://stackoverflow.com/questions/40818120/eclipse-cdt-modify-and-save-ast
[2] http://stackoverflow.com/questions/35335235/eclipse-cdt-astrewrite-not-working
~~~
Jonah Graham
Kichwa Coders Ltd.
www.kichwacoders.com


On 26 November 2016 at 23:45, Jonah Graham <jonah@xxxxxxxxxxxxxxxx> wrote:
> Hi,
>
> Sounds like you are running without OSGi classloaders. You have
> compiled OK, but the class cannot be found at runtime (that is what
> NoClassDefFoundError means).. Is your code in an Eclipse plug-in so
> that all the dependencies are pulled in correctly at compile time? Are
> you then running as an Eclipse Application or similar OSGi so that the
> OSGi classloaders are used?
>
> If you are running an Eclipse app (and therefore using the expected
> classloaders), perhaps you are missing some require bundles in your
> manifest? That can happen if you use compile time only dependencies in
> the build.properties.
>
> HTH,
> Jonah
> ~~~
> Jonah Graham
> Kichwa Coders Ltd.
> www.kichwacoders.com
>
>
> On 26 November 2016 at 23:08, sim0s <gerasimu_s@xxxxxxxxxxx> wrote:
>> I'm exploring ways to alter the AST of a C/C++ code (e.g., rename a node, add
>> a new variable) and apply these changes to the source file.
>>
>> I did a lot of reading here in SO and in Eclipse forums. However I didn't
>> find a minimal working example.
>>
>> It seems that the correct way to make changes in an AST is by using the
>> ASTRewrite class.
>>
>> A similar question was asked in SO a few months ago, but it is still
>> pending.
>>
>> Here is where I'm stuck at the moment:
>>
>> //get the factory
>> INodeFactory nodeFactory = myAST.getASTNodeFactory();
>>
>> //create a new function declarator
>> IASTNode n =
>> nodeFactory.newFunctionDeclarator(nodeFactory.newName("testMe"));
>>
>> //get the rewriter
>> ASTRewrite rewriter = ASTRewrite.create(mainAST);
>>
>> //replace node with n, node is not null
>> rewriter.replace(node, n, null);
>>
>> //make the changes
>> Change c = rewriter.rewriteAST();
>> c.perform(new NullProgressMonitor());
>> When I run this code snippet, I get a
>>
>> java.lang.NoClassDefFoundError: org/eclipse/ltk/core/refactoring/Change
>> Any hints are appreciated.
>>
>>
>>
>> --
>> View this message in context: http://eclipse.1072660.n5.nabble.com/Eclipse-CDT-Modify-and-save-AST-tp186373.html
>> Sent from the Eclipse CDT - Development mailing list archive at Nabble.com.
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