Re: Using sun javac to parse java source

From:
Lew <lewbloch@gmail.com>
Newsgroups:
comp.lang.java.programmer
Date:
Tue, 23 Aug 2011 20:20:07 -0700 (PDT)
Message-ID:
<b842fa00-d872-4ae8-a7e7-f0bd90090eec@glegroupsg2000goo.googlegroups.com>
Arne Vajh=F8j wrote:

Lew wrote:

Arne Vajh=F8j wrote:

Alex J wrote:

I'm curious whether it is possible to use JavacParser -
http://docjar.org/docs/api/com/sun/tools/javac/parser/JavacParser.html
- built-in to OpenJDK to parse standalone java files (though claimed
to be "internal use only API"). I googled but I've found no answers.


Java 1.6 and newer contains a supported callable Java compiler.

Use that.


+1.

Java 5 and older are obsolete, so that settles that.
<http://en.wikipedia.org/wiki/Java_version_history#J2SE_5.0_.28September=

_30.2C_2004.29>

If you only want to syntax check you will need to discard the
generated byte code in case of success, but that is easy.

The API is a bit complex many would say over engineered, but
it works fine.


It pays to know the API.
<http://download.oracle.com/javase/6/docs/api/javax/tools/package-frame.=

html>

 
Sure, but it is still a complex API.


Yes, it is. That isn't a reason not to know it, if you need that functiona=
lity.

Pardon my confusion, but aren't we both recommending the same API? Are you=
 suggesting that they not know this API now?

Perhaps you misunderstand me to suggest that by "know the API" I do not mea=
n to study the finer points of how to use it?

Could anyone infer that by pointing to the first step on the road to knowle=
dge that I mean they should sit on the curb at the beginning and go no furt=
her?

Or perhaps you believe that after pointing the OP to the beginning of that =
journey I should do all the research for them, and Google on their behalf f=
or all the further reading that they should do, or even read it for them an=
d feed it predigested to them like a mommy-bird feeding her pre-fledgling b=
abies?

I see nothing in my earlier post to suggest that it is not a complex API, o=
r that they should stop at the first indicated signpost.

The value of the link to the API is that it shows some basic information, a=
nd given a certain level of programming experience or commitment or both it=
 can lead them into study and experimentation that will solve their problem=
.. It indicates that the API is, indeed, standard, and gives hope that ther=
e is a solution. There has been no assertion that competence with the API =
ends with reading the Javadocs.

--
Lew

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