From: Per Bothner <per@bothner.com>
To: Peter <craven@gmx.net>, kawa mailing list <kawa@sourceware.org>
Subject: Re: Reflection
Date: Wed, 27 Sep 2017 15:29:00 -0000 [thread overview]
Message-ID: <9f5b2403-5086-f623-f031-ca159889b3a5@bothner.com> (raw)
In-Reply-To: <87mv5gry11.fsf@nexoid.at>
On 09/27/2017 07:55 AM, Peter wrote:
> I'm trying to reflect on Classes, however, I'm running into some
> problems:
>
>> ("foo":getClass)
> class java.lang.String
>> (("foo":getClass):getCanonicalName)
> ; Evaluation aborted on java.lang.RuntimeException: no applicable method named `getCanonicalName' in java.lang.String.
>> (java.lang.String:getCanonicalName)
> ; Evaluation aborted on java.lang.RuntimeException: no such field getCanonicalName in java.lang.String.
>> (<java.lang.String>:getCanonicalName)
> ; Evaluation aborted on java.lang.RuntimeException: no such field getCanonicalName in java.lang.String.
This is explained in
https://www.gnu.org/software/kawa/Colon-notation.html
However, that doesn't say what to do instead. (I'm adding a note for that.)
Basically, if the "receiver" (this) argument is a Class then you can't use
colon notation, but you can use the invoke procedure:
(invoke ("foo":getClass) 'getCanonicalName)
--
--Per Bothner
per@bothner.com http://per.bothner.com/
next prev parent reply other threads:[~2017-09-27 15:29 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-27 14:56 Reflection Peter
2017-09-27 15:29 ` Per Bothner [this message]
2017-09-27 15:35 ` Reflection Jamison Hope
2017-09-27 15:56 ` Reflection Peter
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=9f5b2403-5086-f623-f031-ca159889b3a5@bothner.com \
--to=per@bothner.com \
--cc=craven@gmx.net \
--cc=kawa@sourceware.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).