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Date: Tue, 23 Jun 2015 11:48:58 +0200
From: Jochen Theodorou <blackdrag@gmx.org>
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To: dev@groovy.incubator.apache.org
Subject: Re: java parser usage in Groovy
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Am 23.06.2015 09:26, schrieb Guillaume Laforge:
> Hi Jochen,
>
> A few thoughts...
>
> 1) It sounds like a good idea to focus on one single Java parser,
> instead of two.
>
> 2) I think we could get rid (completely) of the useless java2groovy
> usage and tool altogether (one less place to use a Java parser)
>
> 3) I'm wondering what is going to be the most up-to-date / practical of
> Antlr v4 vs QDox Java parser?
> Is QDox still alive? (I notice Paul Hammant migrated QDox from Codehaus
> to his Github account)
> And is QDox using the latest Java 8 syntax or is it still on an older
> version of the Java syntax?
> Perhaps the Antlr Java parser would be more up-to-date? (and there's
> usually always someone to contribute a new grammar for newer versions of
> Java)

There are not many changes to qdox, yes, but on the other hand, there 
are not many changes needed as well. Java 8 for example doesn't really 
differ in the signatures sections from Java 5. Depending on how the 
parser has been written, it may not care about lambdas and such at all. 
So it is more about bug fixing.

I am pretty sure we can make a parser that will accept java as well as 
groovy source files to get those signatures. I am also relatively sure 
we can use the existing antlr4 groovy parser as base for this and more 
or less strip it down quite a bit. That's of course only if the 
java2groovy tool is really abandoned. Because that tool requires more 
then just signatures and javadoc-comments.

bye blackdrag

-- 
Jochen "blackdrag" Theodorou
blog: http://blackdragsview.blogspot.com/