5 ;;; (c) 2013 Straylight/Edgeware
8 ;;;----- Licensing notice ---------------------------------------------------
10 ;;; This file is part of the Sensible Object Design, an object system for C.
12 ;;; SOD is free software; you can redistribute it and/or modify
13 ;;; it under the terms of the GNU General Public License as published by
14 ;;; the Free Software Foundation; either version 2 of the License, or
15 ;;; (at your option) any later version.
17 ;;; SOD is distributed in the hope that it will be useful,
18 ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
19 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 ;;; GNU General Public License for more details.
22 ;;; You should have received a copy of the GNU General Public License
23 ;;; along with SOD; if not, write to the Free Software Foundation,
24 ;;; Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
28 ;;;--------------------------------------------------------------------------
32 (defun banner (title output &key (blank-line-p t))
33 "Write a banner to the OUTPUT stream, starting a new section called TITLE.
35 If BLANK-LINE-P is false, then leave a blank line after the banner. (This
36 is useful for a final banner at the end of a file.)"
37 (format output "~&/*----- ~A ~A*/~%"
39 (make-string (- 77 2 5 1 (length title) 1 2)
40 :initial-element #\-))
45 (defun guard-name (filename)
46 "Return a sensible inclusion guard name for FILENAME."
47 (with-output-to-string (guard)
48 (let* ((pathname (make-pathname :name (pathname-name filename)
49 :type (pathname-type filename)))
50 (name (namestring pathname))
52 (dotimes (i (length name))
53 (let ((ch (char name i)))
54 (cond ((alphanumericp ch)
55 (write-char (char-upcase ch) guard)
58 (write-char #\_ guard)
59 (setf uscore t))))))))
61 (defun guess-output-file (module type)
62 "Guess the filename to use for a file TYPE, generated from MODULE.
64 Here, TYPE is a filetype string. The result is returned as a pathname."
65 (merge-pathnames (make-pathname :type type :case :common)
66 (module-name module)))
68 (defvar *done-one-off-output* nil
69 "A list of tokens for things which should appear at most once in output.")
71 (export 'one-off-output)
72 (defun one-off-output (token sequencer item-name function)
73 "Arrange to output a thing at most once.
75 If there has been no previous call to `one-off-output' with the given
76 TOKEN during this output run, then arrange to call FUNCTION when the item
77 called ITEM-NAME is traversed. Otherwise do nothing."
78 (unless (member token *done-one-off-output*)
79 (push token *done-one-off-output*)
80 (add-sequencer-item-function sequencer item-name function)))
82 ;;;--------------------------------------------------------------------------
83 ;;; Main output interface.
85 (export 'output-module)
86 (defun output-module (module reason stream)
87 "Write the MODULE to STREAM, giving the output machinery the REASON.
89 This is the top-level interface for producing output."
90 (let ((*print-right-margin* 77)
91 (*done-one-off-output* nil)
92 (sequencer (make-instance 'sequencer))
93 (stream (if (typep stream 'position-aware-output-stream)
95 (make-instance 'position-aware-output-stream
97 :file (stream-pathname stream)))))
98 (with-module-environment (module)
99 (hook-output module reason sequencer)
100 (invoke-sequencer-items sequencer stream))))
102 ;;;--------------------------------------------------------------------------
103 ;;; Output implementation.
105 (defmethod hook-output :after ((module module) reason sequencer)
107 ;; Ask the module's items to sequence themselves.
108 (dolist (item (module-items module))
109 (hook-output item reason sequencer)))
111 (defmethod hook-output ((frag code-fragment-item) reason sequencer)
113 ;; Output fragments when their reasons are called up.
114 (when (eq reason (code-fragment-reason frag))
115 (dolist (constraint (code-fragment-constraints frag))
116 (add-sequencer-constraint sequencer constraint))
117 (awhen (code-fragment-name frag)
118 (add-sequencer-item-function sequencer it
120 (write (code-fragment frag)
125 (defmethod hook-output ((module module) (reason (eql :h)) sequencer)
126 (sequence-output (stream sequencer)
131 (:typedefs :start) :typedefs (:typedefs :end)
132 (:includes :start) :includes :early-decls (:includes :end)
133 (:early-user :start) :early-user (:early-user :end)
134 (:classes :start) (:classes :end)
135 (:static-instances :start) :static-instances (:static-instances :end)
136 (:user :start) :user (:user :end)
142 /* -*- mode: c; indent-tabs-mode: nil -*-
144 * Header file generated by SOD for ~A
146 (namestring (module-name module))))
156 (or (get-property (module-pset module) :guard :id)
157 (guard-name (or (stream-pathname stream)
158 (guess-output-file module "H"))))))
160 (banner "That's all, folks" stream)
169 (banner "Forward type declarations" stream))
174 (banner "External header files" stream))
178 (defmethod hook-output ((module module) (reason (eql :c)) sequencer)
179 (sequence-output (stream sequencer)
183 (:includes :start) :includes (:includes :end)
184 (:early-user :start) :early-user (:early-user :end)
185 (:static-instances :start)
186 (:static-instances :decls) (:static-instances :gap)
187 (:static-instances :end)
188 (:classes :start) (:classes :end)
189 (:user :start) :user (:user :end)
194 /* -*- mode: c; indent-tabs-mode: nil -*-
196 * Implementation file generated by SOD for ~A
198 (namestring (module-name module))))
201 (banner "That's all, folks" stream :blank-line-p nil))
204 (banner "External header files" stream))
208 ;;;--------------------------------------------------------------------------
211 (defvar *output-types* nil
212 "List of known output types.")
214 (export 'declare-output-type)
215 (defun declare-output-type (reason pathname)
216 "Record that REASON is a valid user-level output type.
218 The output file name will be constructed by merging the module's pathname
220 (pushnew reason *output-types*)
221 (setf (get reason 'output-type) pathname))
223 (export 'output-type-pathname)
224 (defun output-type-pathname (reason)
225 "Return the PATHNAME template for the output type REASON.
227 Report an error if there is no such output type."
228 (or (get reason 'output-type)
229 (error "Unknown output type `~(~A~)'" reason)))
231 (export 'module-output-file)
232 (defgeneric module-output-file (module output-type output-dir)
234 "Return a pathname to which the output should be written.
236 Specifically, if we're processing a MODULE for a particular OUTPUT-TYPE,
237 and the user has requested that output be written to OUTPUT-DIR (a
238 pathname), then return the pathname to which the output should be
241 The OUTPUT-TYPE can be an `reason' symbol or a raw pathname. (Or
242 something else, of course.)"))
244 (defmethod module-output-file
245 ((module module) (output-type symbol) output-dir)
246 (module-output-file module (output-type-pathname output-type) output-dir))
248 (defmethod module-output-file
249 ((module module) (output-type pathname) output-dir)
250 (reduce #'merge-pathnames
251 (list output-dir output-type
252 (make-pathname :directory nil
253 :defaults (module-name module)))))
255 (export 'write-dependency-file)
256 (defgeneric write-dependency-file (module reason output-dir)
258 "Write a dependency-tracking make(1) fragment.
260 Specifically, we've processed a MODULE for a particular REASON (a
261 symbol), and the user has requested that output be written to OUTPUT-DIR
262 (a pathname): determine a suitable output pathname and write a make(1)
263 fragment explaining that the output file we've made depends on all of the
264 files we had to read to load the module."))
266 (defmethod write-dependency-file ((module module) reason output-dir)
268 ;; Bletch. We want to derive the filetype from the one we're
269 ;; given, but we need to determine the environment's preferred
270 ;; filetype case to do that. Make a pathname and inspect it to
271 ;; find out how to do this.
273 (if (upper-case-p (char (pathname-type (make-pathname
280 (outpath (output-type-pathname reason))
281 (deppath (make-pathname :type (concatenate 'string
282 (pathname-type outpath)
286 (outfile (module-output-file module reason output-dir))
287 (depfile (module-output-file module deppath output-dir)))
289 (with-open-file (dep depfile
291 :if-exists :supersede
292 :if-does-not-exist :create)
293 (format dep "### -*-makefile-*-~%~
296 (cons (module-name module)
297 (module-files module))))))
299 (define-clear-the-decks reset-output-types
300 "Clear out the registered output types."
301 (dolist (reason *output-types*) (remprop reason 'output-type))
302 (setf *output-types* nil)
303 (declare-output-type :c (make-pathname :type "C" :case :common))
304 (declare-output-type :h (make-pathname :type "H" :case :common)))
306 ;;;----- That's all, folks --------------------------------------------------