[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Gnu ELPA cl-generic bug?
From: |
Stephen Leake |
Subject: |
Gnu ELPA cl-generic bug? |
Date: |
Tue, 27 Nov 2018 17:17:26 -0700 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/26.0.90 (windows-nt) |
I'm trying to use the Gnu ELPA package cl-generic to support
cl-defmethod in Emacs 24.5.
I have this set of definitions:
(cl-defstruct wisi-parser
;; Separate lists for lexer and parse errors, because lexer errors
;; must be repaired first, before parse errors can be repaired. And
;; they have different structures.
lexer-errors
;; list of wisi--lexer-errors from last parse. Can be more than one if
;; lexer supports error recovery.
parse-errors
;; List of wisi--parse-errors from last parse. Can be more than one if
;; parser supports error recovery.
)
(cl-defgeneric wisi-parse-kill ((parser wisi-parser))
"Kill any external process associated with parser.")
(cl-defstruct (wisi-elisp-parser (:include wisi-parser))
actions
gotos
next-token
)
(cl-defmethod wisi-parse-kill ((_parser wisi-elisp-parser))
nil)
(cl-defstruct (wisi-process--parser (:include wisi-parser))
...
)
(cl-defmethod wisi-parse-kill ((parser wisi-process--parser))
(when (process-live-p (wisi-process--parser-process parser))
(process-send-string (wisi-process--parser-process parser)
wisi-process-parse-quit-cmd)
(sit-for 1.0)
(when (process-live-p (wisi-process--parser-process parser))
(kill-process (wisi-process--parser-process parser)))
)
(setf (wisi-process--parser-busy parser) nil))
Whenever one of these 'cl-defmethod' forms is encountered, the byte
compiler issues an error:
Error: Unknown class type wisi-elisp-parser in method parameters
The ELPA package cl-generic defines cl-defgeneric and cl-defmethod,
using eieio defgeneric and defmethod. It does _not_ define cl-defstuct;
that has its normal definition that does not use eieio.
So I suspect the problem is that the eieio class 'wisi-elisp-parser' is
never declared, because 'cl-defstruct' does not call eieio defclass.
Is there a simple fix for this?
--
-- Stephe
- Gnu ELPA cl-generic bug?,
Stephen Leake <=