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Re: [jdt-dev] parser question
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Hi Martin,
not sure whether it is important to you to use the JDT tools. If not
you might want to have a look at the JavaParser project[1]. It's a
Java AST parser written in Java and they also have a module for
resolving types (they call it symbol solver).
Best,
Sebastian
[1] https://javaparser.org/
On Fri, 8 Mar 2019 21:12:55 +0100
Martin Lippert <mlippert@xxxxxxxxx> wrote:
> Hey!
>
> I need to create ASTs (incl. type resolving) for Java source files
> (outside of an Eclipse project environment, just plain Java and some
> source files). At the moment I am using:
>
> ASTParser parser = ASTParser.newParser(AST.JLS11);
>
> This works nicely, but I need to get ASTs for method bodies, so I
> configured the parser to NOT ignore method bodies. But this causes
> the parser to somehow call out to a compiler to generate bytecode -
> which I don’t need at all for my purpose. I am interested in the
> resolved AST only, no byte code necessary. Since this piece of the
> code is extremely sensitive to performance and memory footprint
> issues, I am looking into this.
>
> Is there an alternative to this approach to avoid the bytecode
> generation?
>
> I found this:
> org.eclipse.jdt.internal.compiler.parser.Parser
> but I have no idea how to use that or how to configure that to
> generate an AST from source files.
>
> Can you shed some light on this? Any examples how to re-use this
> parser for generating ASTs (without bytecode generation)?
>
> Thanks so much for your help!
> -Martin
>
>
>
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