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;; geiser-eval.el -- sending scheme code for evaluation
;; Copyright (C) 2009 Jose Antonio Ortega Ruiz
;; Author: Jose Antonio Ortega Ruiz <jao@gnu.org>
;; Start date: Sat Feb 07, 2009 22:35
;; This file is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 3 of the License, or
;; (at your option) any later version.
;; This file is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <http://www.gnu.org/licenses/>.
;;; Comentary:
;; Functions, building on top of geiser-connection, to evaluate scheme
;; code.
;;; Code:
(require 'geiser-connection)
(require 'geiser-syntax)
(require 'geiser-log)
(require 'geiser-base)
;;; Plug-able functions:
(make-variable-buffer-local
(defvar geiser-eval--get-module-function 'geiser-syntax--buffer-module
"Function used to obtain the module for current buffer. It
takes an optional argument, for cases where we want to force its value."))
(defsubst geiser-eval--get-module (&optional module)
(and geiser-eval--get-module-function
(funcall geiser-eval--get-module-function module)))
(make-variable-buffer-local
(defvar geiser-eval--geiser-procedure-function nil
"Translate a bare procedure symbol to one executable in Guile's
context. Return NULL for unsupported ones; at the very least,
EVAL, COMPILE, LOAD-FILE and COMPILE-FILE should be supported."))
(defsubst geiser-eval--form (proc)
(funcall geiser-eval--geiser-procedure-function proc))
;;; Code formatting:
(defun geiser-eval--scheme-str (code)
(cond ((null code) "'()")
((eq code :f) "#f")
((eq code :t) "#t")
((listp code)
(cond ((eq (car code) :eval) (geiser-eval--eval (cdr code)))
((eq (car code) :comp) (geiser-eval--comp (cdr code)))
((eq (car code) :load-file) (geiser-eval--load-file (cadr code)))
((eq (car code) :comp-file) (geiser-eval--comp-file (cadr code)))
((eq (car code) :module) (geiser-eval--module (cadr code)))
((eq (car code) :ge) (geiser-eval--ge (cadr code)))
((eq (car code) :scm) (cadr code))
(t (concat "(" (mapconcat 'geiser-eval--scheme-str code " ") ")"))))
((symbolp code) (format "%s" code))
(t (format "%S" code))))
(defsubst geiser-eval--eval (code)
(geiser-eval--scheme-str
`(,(geiser-eval--form 'eval) (quote ,(nth 0 code)) (:module ,(nth 1 code)))))
(defsubst geiser-eval--comp (code)
(geiser-eval--scheme-str
`(,(geiser-eval--form 'compile) (quote ,(nth 0 code)) (:module ,(nth 1 code)))))
(defsubst geiser-eval--load-file (file)
(geiser-eval--scheme-str `(,(geiser-eval--form 'load-file) ,file)))
(defsubst geiser-eval--comp-file (file)
(geiser-eval--scheme-str `(,(geiser-eval--form 'compile-file) ,file)))
(defsubst geiser-eval--module (code)
(geiser-eval--scheme-str
(cond ((or (null code) (eq code :t) (eq code :buffer))
(list 'quote (funcall geiser-eval--get-module-function)))
((or (eq code :repl) (eq code :f)) :f)
(t (list 'quote (funcall geiser-eval--get-module-function code))))))
(defsubst geiser-eval--ge (proc)
(geiser-eval--scheme-str (geiser-eval--form proc)))
;;; Code sending:
(defvar geiser-eval--default-proc-function nil)
(defsubst geiser-eval--proc ()
(and geiser-eval--default-proc-function
(funcall geiser-eval--default-proc-function)))
(defsubst geiser-eval--log (s)
(geiser-log--info "RETORT: %S" s)
s)
(defsubst geiser-eval--code-str (code)
(if (stringp code) code (geiser-eval--scheme-str code)))
(defvar geiser-eval--sync-retort nil)
(defun geiser-eval--set-sync-retort (s)
(setq geiser-eval--sync-retort (geiser-eval--log s)))
(defsubst geiser-eval--send (code cont &optional buffer)
(geiser-con--send-string (geiser-eval--proc)
(geiser-eval--code-str code)
`(lambda (s) (,cont (geiser-eval--log s)))
buffer))
(defun geiser-eval--send/wait (code &optional timeout buffer)
(setq geiser-eval--sync-retort nil)
(geiser-con--send-string/wait (geiser-eval--proc)
(geiser-eval--code-str code)
'geiser-eval--set-sync-retort
timeout
buffer)
geiser-eval--sync-retort)
(defsubst geiser-eval--send/result (code &optional timeout buffer)
(geiser-eval--retort-result (geiser-eval--send/wait code timeout buffer)))
;;; Retort parsing:
(defsubst geiser-eval--retort-p (ret)
(and (listp ret) (or (assoc 'error ret) (assoc 'result ret))))
(defun geiser-eval--retort-result (ret)
(let ((values (cdr (assoc 'result ret))))
(if (> (length values) 1) (cons :values values) (car values))))
(defsubst geiser-eval--retort-output (ret) (cdr (assoc 'output ret)))
(defsubst geiser-eval--retort-error (ret) (cdr (assoc 'error ret)))
(defsubst geiser-eval--retort-stack (ret) (cdr (assoc 'stack ret)))
(defsubst geiser-eval--error-key (err) (cdr (assoc 'key err)))
(defsubst geiser-eval--error-subr (err) (cdr (assoc 'subr err)))
(defsubst geiser-eval--error-msg (err) (cdr (assoc 'msg err)))
(defsubst geiser-eval--error-rest (err) (cdr (assoc 'rest err)))
(defun geiser-eval--error-str (err)
(let* ((key (geiser-eval--error-key err))
(subr (geiser-eval--error-subr err))
(subr-str (if subr (format " (%s)" subr) ""))
(msg (geiser-eval--error-msg err))
(msg-str (if msg (format ": %s" msg) ""))
(rest (geiser-eval--error-rest err))
(rest-str (if rest (format " %s" rest) "")))
(format "Error%s: %s%s%s" subr-str key msg-str rest-str)))
(provide 'geiser-eval)
;;; geiser-eval.el ends here
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