GNU bug report logs - #34242
26.1; json-encode crudely rejects unwelcome objects

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Package: emacs;

Reported by: phs <at> lsv.fr

Date: Tue, 29 Jan 2019 14:03:02 UTC

Severity: normal

Tags: fixed

Found in version 26.1

Fixed in version 27.1

Done: Lars Ingebrigtsen <larsi <at> gnus.org>

Bug is archived. No further changes may be made.

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From: phs <phs <at> lsv.fr>
To: 34242 <at> debbugs.gnu.org
Subject: bug#34242: 26.1; json-encode crudely rejects unwelcome objects
Date: Tue, 29 Jan 2019 19:31:28 +0530

json-encode is supposed to return a JSON representation of its argument.

It fails on some objects:

  (setq debug-on-error t)
  (require 'json)

  (json-encode (list (list 1)))

  ==> Debugger entered--Lisp error: (json-key-format 1)

  (json-encode (list (cons (cons 'a 'b) 'a)))

  ==> Debugger entered--Lisp error: (wrong-type-argument listp a)

I understand that maybe not all objects make sense for json-encoding but
the documentation of json-encode does not specify what is a valid
argument, and (it seems) the package does not do it either.

Also the documentation does not list the error-codes so that we could
catch them in code.

--phs
This bug report was last modified 5 years and 319 days ago.

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