blob: df9b0e0157be6765cf8b0946426410c0cea945e5 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
;;;; Objective-CL, an Objective-C bridge for Common Lisp.
;;;; Copyright (C) 2007, 2008 Matthias Andreas Benkard.
;;;;
;;;; This program is free software: you can redistribute it and/or
;;;; modify it under the terms of the GNU Lesser General Public License
;;;; as published by the Free Software Foundation, either version 3 of
;;;; the License, or (at your option) any later version.
;;;;
;;;; This program 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
;;;; Lesser General Public License for more details.
;;;;
;;;; You should have received a copy of the GNU Lesser General Public
;;;; License along with this program. If not, see
;;;; <http://www.gnu.org/licenses/>.
(in-package #:mulk.objective-cl)
(defun convert-from-foreign-value (foreign-value-cell typespec
skip-retaining-p char-is-bool-p)
(let ((c-type (typespec->c-type typespec)))
(case (or (typespec-nominal-type typespec)
(typespec-primary-type typespec))
((id objective-c-class exception selector)
(let ((*skip-retaining* skip-retaining-p))
(intern-pointer-wrapper (car (typespec typespec))
:pointer (cffi:mem-ref foreign-value-cell
c-type))))
((:char :unsigned-char)
;; FIXME? This is non-trivial. See policy.lisp for
;; details.
(objc-char->lisp-value (cffi:mem-ref foreign-value-cell c-type)
char-is-bool-p))
((struct union)
;; The caller is responsible for preventing the return
;; value from being garbage-collected by setting
;; FOREIGN-VALUE-LISP-MANAGED-P to false.
(make-struct-wrapper foreign-value-cell typespec t))
((:void) (values))
(otherwise (cffi:mem-ref foreign-value-cell c-type)))))
|
