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features.lisp (3965B) | |
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1 ;;;; -*- Mode: lisp; indent-tabs-mode: nil -*- | |
2 ;;; | |
3 ;;; features.lisp --- CFFI-specific features (DEPRECATED). | |
4 ;;; | |
5 ;;; Copyright (C) 2006-2007, Luis Oliveira <[email protected]> | |
6 ;;; | |
7 ;;; Permission is hereby granted, free of charge, to any person | |
8 ;;; obtaining a copy of this software and associated documentation | |
9 ;;; files (the "Software"), to deal in the Software without | |
10 ;;; restriction, including without limitation the rights to use, copy, | |
11 ;;; modify, merge, publish, distribute, sublicense, and/or sell copies | |
12 ;;; of the Software, and to permit persons to whom the Software is | |
13 ;;; furnished to do so, subject to the following conditions: | |
14 ;;; | |
15 ;;; The above copyright notice and this permission notice shall be | |
16 ;;; included in all copies or substantial portions of the Software. | |
17 ;;; | |
18 ;;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
19 ;;; EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
20 ;;; MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
21 ;;; NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT | |
22 ;;; HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, | |
23 ;;; WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
24 ;;; OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | |
25 ;;; DEALINGS IN THE SOFTWARE. | |
26 ;;; | |
27 | |
28 (in-package #:cl-user) | |
29 | |
30 (eval-when (:compile-toplevel :load-toplevel :execute) | |
31 (pushnew :cffi *features*)) | |
32 | |
33 ;;; CFFI-SYS backends take care of pushing the appropriate features to | |
34 ;;; *features*. See each cffi-*.lisp file. | |
35 ;;; | |
36 ;;; Not anymore, I think we should use TRIVIAL-FEATURES for the | |
37 ;;; platform features instead. Less pain. CFFI-FEATURES is now | |
38 ;;; deprecated and this code will stay here for a while for backwards | |
39 ;;; compatibility purposes, to be removed in a future release. | |
40 | |
41 (defpackage #:cffi-features | |
42 (:use #:cl) | |
43 (:export | |
44 #:cffi-feature-p | |
45 | |
46 ;; Features related to the CFFI-SYS backend. Why no-*? This | |
47 ;; reflects the hope that these symbols will go away completely | |
48 ;; meaning that at some point all lisps will support long-longs, | |
49 ;; the foreign-funcall primitive, etc... | |
50 #:no-long-long | |
51 #:no-foreign-funcall | |
52 #:no-stdcall | |
53 #:flat-namespace | |
54 | |
55 ;; Only SCL supports long-double... | |
56 ;;#:no-long-double | |
57 | |
58 ;; Features related to the operating system. | |
59 ;; More should be added. | |
60 #:darwin | |
61 #:unix | |
62 #:windows | |
63 | |
64 ;; Features related to the processor. | |
65 ;; More should be added. | |
66 #:ppc32 | |
67 #:x86 | |
68 #:x86-64 | |
69 #:sparc | |
70 #:sparc64 | |
71 #:hppa | |
72 #:hppa64)) | |
73 | |
74 (in-package #:cffi-features) | |
75 | |
76 (defun cffi-feature-p (feature-expression) | |
77 "Matches a FEATURE-EXPRESSION against those symbols in *FEATURES* | |
78 that belong to the CFFI-FEATURES package." | |
79 (when (eql feature-expression t) | |
80 (return-from cffi-feature-p t)) | |
81 (let ((features-package (find-package '#:cffi-features))) | |
82 (flet ((cffi-feature-eq (name feature-symbol) | |
83 (and (eq (symbol-package feature-symbol) features-package) | |
84 (string= name (symbol-name feature-symbol))))) | |
85 (etypecase feature-expression | |
86 (symbol | |
87 (not (null (member (symbol-name feature-expression) *features* | |
88 :test #'cffi-feature-eq)))) | |
89 (cons | |
90 (ecase (first feature-expression) | |
91 (:and (every #'cffi-feature-p (rest feature-expression))) | |
92 (:or (some #'cffi-feature-p (rest feature-expression))) | |
93 (:not (not (cffi-feature-p (cadr feature-expression)))))))))) | |
94 | |
95 ;;; for backwards compatibility | |
96 (mapc (lambda (sym) (pushnew sym *features*)) | |
97 '(#+darwin darwin | |
98 #+unix unix | |
99 #+windows windows | |
100 #+ppc ppc32 | |
101 #+x86 x86 | |
102 #+x86-64 x86-64 | |
103 #+sparc sparc | |
104 #+sparc64 sparc64 | |
105 #+hppa hppa | |
106 #+hppa64 hppa64 | |
107 #+cffi-sys::no-long-long no-long-long | |
108 #+cffi-sys::flat-namespace flat-namespace | |
109 #+cffi-sys::no-foreign-funcall no-foreign-funcall | |
110 #+cffi-sys::no-stdcall no-stdcall | |
111 )) |