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55535639 | 1 | ;;; bytecomp.el --- compilation of Lisp code into byte code |
fd5285f3 | 2 | |
977b50fb | 3 | ;; Copyright (C) 1985, 1986, 1987, 1992, 1994, 1998, 2000, 2001, 2002, |
13639aab GM |
4 | ;; 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 |
5 | ;; Free Software Foundation, Inc. | |
3a801d0c | 6 | |
fd5285f3 RS |
7 | ;; Author: Jamie Zawinski <jwz@lucid.com> |
8 | ;; Hallvard Furuseth <hbf@ulrik.uio.no> | |
74dfd056 | 9 | ;; Maintainer: FSF |
713ea1de | 10 | ;; Keywords: lisp |
bd78fa1d | 11 | ;; Package: emacs |
1c393159 | 12 | |
1c393159 JB |
13 | ;; This file is part of GNU Emacs. |
14 | ||
d6cba7ae | 15 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
1c393159 | 16 | ;; it under the terms of the GNU General Public License as published by |
d6cba7ae GM |
17 | ;; the Free Software Foundation, either version 3 of the License, or |
18 | ;; (at your option) any later version. | |
1c393159 JB |
19 | |
20 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
21 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
22 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
23 | ;; GNU General Public License for more details. | |
24 | ||
25 | ;; You should have received a copy of the GNU General Public License | |
d6cba7ae | 26 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
1c393159 | 27 | |
e41b2db1 ER |
28 | ;;; Commentary: |
29 | ||
30 | ;; The Emacs Lisp byte compiler. This crunches lisp source into a sort | |
a586093f SM |
31 | ;; of p-code (`lapcode') which takes up less space and can be interpreted |
32 | ;; faster. [`LAP' == `Lisp Assembly Program'.] | |
e41b2db1 ER |
33 | ;; The user entry points are byte-compile-file and byte-recompile-directory. |
34 | ||
fd5285f3 RS |
35 | ;;; Code: |
36 | ||
b578f267 EN |
37 | ;; ======================================================================== |
38 | ;; Entry points: | |
39 | ;; byte-recompile-directory, byte-compile-file, | |
40 | ;; batch-byte-compile, batch-byte-recompile-directory, | |
41 | ;; byte-compile, compile-defun, | |
42 | ;; display-call-tree | |
43 | ;; (byte-compile-buffer and byte-compile-and-load-file were turned off | |
44 | ;; because they are not terribly useful and get in the way of completion.) | |
45 | ||
46 | ;; This version of the byte compiler has the following improvements: | |
47 | ;; + optimization of compiled code: | |
48 | ;; - removal of unreachable code; | |
49 | ;; - removal of calls to side-effectless functions whose return-value | |
50 | ;; is unused; | |
51 | ;; - compile-time evaluation of safe constant forms, such as (consp nil) | |
52 | ;; and (ash 1 6); | |
53 | ;; - open-coding of literal lambdas; | |
54 | ;; - peephole optimization of emitted code; | |
55 | ;; - trivial functions are left uncompiled for speed. | |
56 | ;; + support for inline functions; | |
57 | ;; + compile-time evaluation of arbitrary expressions; | |
58 | ;; + compile-time warning messages for: | |
59 | ;; - functions being redefined with incompatible arglists; | |
60 | ;; - functions being redefined as macros, or vice-versa; | |
61 | ;; - functions or macros defined multiple times in the same file; | |
62 | ;; - functions being called with the incorrect number of arguments; | |
c5091f25 | 63 | ;; - functions being called which are not defined globally, in the |
b578f267 EN |
64 | ;; file, or as autoloads; |
65 | ;; - assignment and reference of undeclared free variables; | |
66 | ;; - various syntax errors; | |
67 | ;; + correct compilation of nested defuns, defmacros, defvars and defsubsts; | |
68 | ;; + correct compilation of top-level uses of macros; | |
69 | ;; + the ability to generate a histogram of functions called. | |
70 | ||
416d3588 | 71 | ;; User customization variables: M-x customize-group bytecomp |
b578f267 EN |
72 | |
73 | ;; New Features: | |
74 | ;; | |
75 | ;; o The form `defsubst' is just like `defun', except that the function | |
76 | ;; generated will be open-coded in compiled code which uses it. This | |
77 | ;; means that no function call will be generated, it will simply be | |
78 | ;; spliced in. Lisp functions calls are very slow, so this can be a | |
79 | ;; big win. | |
80 | ;; | |
81 | ;; You can generally accomplish the same thing with `defmacro', but in | |
82 | ;; that case, the defined procedure can't be used as an argument to | |
83 | ;; mapcar, etc. | |
84 | ;; | |
85 | ;; o You can also open-code one particular call to a function without | |
86 | ;; open-coding all calls. Use the 'inline' form to do this, like so: | |
87 | ;; | |
88 | ;; (inline (foo 1 2 3)) ;; `foo' will be open-coded | |
89 | ;; or... | |
c5091f25 | 90 | ;; (inline ;; `foo' and `baz' will be |
b578f267 EN |
91 | ;; (foo 1 2 3 (bar 5)) ;; open-coded, but `bar' will not. |
92 | ;; (baz 0)) | |
93 | ;; | |
94 | ;; o It is possible to open-code a function in the same file it is defined | |
6b61353c | 95 | ;; in without having to load that file before compiling it. The |
b578f267 EN |
96 | ;; byte-compiler has been modified to remember function definitions in |
97 | ;; the compilation environment in the same way that it remembers macro | |
98 | ;; definitions. | |
99 | ;; | |
100 | ;; o Forms like ((lambda ...) ...) are open-coded. | |
101 | ;; | |
102 | ;; o The form `eval-when-compile' is like progn, except that the body | |
103 | ;; is evaluated at compile-time. When it appears at top-level, this | |
104 | ;; is analogous to the Common Lisp idiom (eval-when (compile) ...). | |
105 | ;; When it does not appear at top-level, it is similar to the | |
106 | ;; Common Lisp #. reader macro (but not in interpreted code). | |
107 | ;; | |
108 | ;; o The form `eval-and-compile' is similar to eval-when-compile, but | |
109 | ;; the whole form is evalled both at compile-time and at run-time. | |
110 | ;; | |
111 | ;; o The command compile-defun is analogous to eval-defun. | |
112 | ;; | |
c5091f25 | 113 | ;; o If you run byte-compile-file on a filename which is visited in a |
b578f267 EN |
114 | ;; buffer, and that buffer is modified, you are asked whether you want |
115 | ;; to save the buffer before compiling. | |
116 | ;; | |
117 | ;; o byte-compiled files now start with the string `;ELC'. | |
118 | ;; Some versions of `file' can be customized to recognize that. | |
1c393159 | 119 | |
79d52eea | 120 | (require 'backquote) |
14acf2f5 | 121 | (eval-when-compile (require 'cl)) |
79d52eea | 122 | |
1c393159 JB |
123 | (or (fboundp 'defsubst) |
124 | ;; This really ought to be loaded already! | |
6c2161c4 | 125 | (load "byte-run")) |
1c393159 | 126 | |
713ea1de | 127 | (defgroup bytecomp nil |
25d1fc94 | 128 | "Emacs Lisp byte-compiler." |
713ea1de RS |
129 | :group 'lisp) |
130 | ||
5692cc8c | 131 | (defcustom emacs-lisp-file-regexp "\\.el\\'" |
2b9c3b12 | 132 | "Regexp which matches Emacs Lisp source files. |
3f12e5bd | 133 | If you change this, you might want to set `byte-compile-dest-file-function'." |
713ea1de RS |
134 | :group 'bytecomp |
135 | :type 'regexp) | |
1c393159 | 136 | |
3f12e5bd GM |
137 | (defcustom byte-compile-dest-file-function nil |
138 | "Function for the function `byte-compile-dest-file' to call. | |
139 | It should take one argument, the name of an Emacs Lisp source | |
140 | file name, and return the name of the compiled file." | |
141 | :group 'bytecomp | |
142 | :type '(choice (const nil) function) | |
143 | :version "23.2") | |
144 | ||
2140206e RS |
145 | ;; This enables file name handlers such as jka-compr |
146 | ;; to remove parts of the file name that should not be copied | |
147 | ;; through to the output file name. | |
148 | (defun byte-compiler-base-file-name (filename) | |
149 | (let ((handler (find-file-name-handler filename | |
150 | 'byte-compiler-base-file-name))) | |
151 | (if handler | |
152 | (funcall handler 'byte-compiler-base-file-name filename) | |
153 | filename))) | |
154 | ||
1c393159 | 155 | (or (fboundp 'byte-compile-dest-file) |
e27c3564 | 156 | ;; The user may want to redefine this along with emacs-lisp-file-regexp, |
1c393159 | 157 | ;; so only define it if it is undefined. |
3f12e5bd GM |
158 | ;; Note - redefining this function is obsolete as of 23.2. |
159 | ;; Customize byte-compile-dest-file-function instead. | |
1c393159 | 160 | (defun byte-compile-dest-file (filename) |
f9b4b5d8 | 161 | "Convert an Emacs Lisp source file name to a compiled file name. |
3f12e5bd GM |
162 | If `byte-compile-dest-file-function' is non-nil, uses that |
163 | function to do the work. Otherwise, if FILENAME matches | |
164 | `emacs-lisp-file-regexp' (by default, files with the extension `.el'), | |
165 | adds `c' to it; otherwise adds `.elc'." | |
166 | (if byte-compile-dest-file-function | |
167 | (funcall byte-compile-dest-file-function filename) | |
168 | (setq filename (file-name-sans-versions | |
169 | (byte-compiler-base-file-name filename))) | |
170 | (cond ((string-match emacs-lisp-file-regexp filename) | |
171 | (concat (substring filename 0 (match-beginning 0)) ".elc")) | |
172 | (t (concat filename ".elc")))))) | |
1c393159 JB |
173 | |
174 | ;; This can be the 'byte-compile property of any symbol. | |
52799cb8 | 175 | (autoload 'byte-compile-inline-expand "byte-opt") |
1c393159 JB |
176 | |
177 | ;; This is the entrypoint to the lapcode optimizer pass1. | |
52799cb8 | 178 | (autoload 'byte-optimize-form "byte-opt") |
1c393159 | 179 | ;; This is the entrypoint to the lapcode optimizer pass2. |
52799cb8 RS |
180 | (autoload 'byte-optimize-lapcode "byte-opt") |
181 | (autoload 'byte-compile-unfold-lambda "byte-opt") | |
1c393159 | 182 | |
ed015bdd JB |
183 | ;; This is the entry point to the decompiler, which is used by the |
184 | ;; disassembler. The disassembler just requires 'byte-compile, but | |
185 | ;; that doesn't define this function, so this seems to be a reasonable | |
186 | ;; thing to do. | |
187 | (autoload 'byte-decompile-bytecode "byte-opt") | |
188 | ||
713ea1de | 189 | (defcustom byte-compile-verbose |
1c393159 | 190 | (and (not noninteractive) (> baud-rate search-slow-speed)) |
2b9c3b12 | 191 | "Non-nil means print messages describing progress of byte-compiler." |
713ea1de RS |
192 | :group 'bytecomp |
193 | :type 'boolean) | |
1c393159 | 194 | |
713ea1de | 195 | (defcustom byte-optimize t |
2b9c3b12 | 196 | "Enable optimization in the byte compiler. |
9bb2e9f8 JB |
197 | Possible values are: |
198 | nil - no optimization | |
199 | t - all optimizations | |
200 | `source' - source-level optimizations only | |
201 | `byte' - code-level optimizations only" | |
713ea1de RS |
202 | :group 'bytecomp |
203 | :type '(choice (const :tag "none" nil) | |
204 | (const :tag "all" t) | |
205 | (const :tag "source-level" source) | |
206 | (const :tag "byte-level" byte))) | |
207 | ||
cd91e34c | 208 | (defcustom byte-compile-delete-errors nil |
2b9c3b12 | 209 | "If non-nil, the optimizer may delete forms that may signal an error. |
713ea1de RS |
210 | This includes variable references and calls to functions such as `car'." |
211 | :group 'bytecomp | |
212 | :type 'boolean) | |
1c393159 | 213 | |
d82e848c | 214 | (defvar byte-compile-dynamic nil |
713ea1de | 215 | "If non-nil, compile function bodies so they load lazily. |
458f70dc RS |
216 | They are hidden in comments in the compiled file, |
217 | and each one is brought into core when the | |
d82e848c RS |
218 | function is called. |
219 | ||
220 | To enable this option, make it a file-local variable | |
221 | in the source file you want it to apply to. | |
222 | For example, add -*-byte-compile-dynamic: t;-*- on the first line. | |
223 | ||
224 | When this option is true, if you load the compiled file and then move it, | |
225 | the functions you loaded will not be able to run.") | |
631c8020 | 226 | ;;;###autoload(put 'byte-compile-dynamic 'safe-local-variable 'booleanp) |
d82e848c | 227 | |
0e66b003 KH |
228 | (defvar byte-compile-disable-print-circle nil |
229 | "If non-nil, disable `print-circle' on printing a byte-compiled code.") | |
230 | ;;;###autoload(put 'byte-compile-disable-print-circle 'safe-local-variable 'booleanp) | |
231 | ||
713ea1de | 232 | (defcustom byte-compile-dynamic-docstrings t |
2b9c3b12 JB |
233 | "If non-nil, compile doc strings for lazy access. |
234 | We bury the doc strings of functions and variables inside comments in | |
235 | the file, and bring them into core only when they are actually needed. | |
d82e848c RS |
236 | |
237 | When this option is true, if you load the compiled file and then move it, | |
238 | you won't be able to find the documentation of anything in that file. | |
239 | ||
1c660f5a KH |
240 | To disable this option for a certain file, make it a file-local variable |
241 | in the source file. For example, add this to the first line: | |
242 | -*-byte-compile-dynamic-docstrings:nil;-*- | |
243 | You can also set the variable globally. | |
244 | ||
713ea1de RS |
245 | This option is enabled by default because it reduces Emacs memory usage." |
246 | :group 'bytecomp | |
247 | :type 'boolean) | |
631c8020 | 248 | ;;;###autoload(put 'byte-compile-dynamic-docstrings 'safe-local-variable 'booleanp) |
d82e848c | 249 | |
713ea1de | 250 | (defcustom byte-optimize-log nil |
2b9c3b12 | 251 | "If true, the byte-compiler will log its optimizations into *Compile-Log*. |
1c393159 | 252 | If this is 'source, then only source-level optimizations will be logged. |
713ea1de RS |
253 | If it is 'byte, then only byte-level optimizations will be logged." |
254 | :group 'bytecomp | |
255 | :type '(choice (const :tag "none" nil) | |
256 | (const :tag "all" t) | |
257 | (const :tag "source-level" source) | |
258 | (const :tag "byte-level" byte))) | |
259 | ||
260 | (defcustom byte-compile-error-on-warn nil | |
2b9c3b12 | 261 | "If true, the byte-compiler reports warnings with `error'." |
713ea1de RS |
262 | :group 'bytecomp |
263 | :type 'boolean) | |
1c393159 | 264 | |
9290191f | 265 | (defconst byte-compile-warning-types |
086af77c | 266 | '(redefine callargs free-vars unresolved |
8accceac | 267 | obsolete noruntime cl-functions interactive-only |
4f1e9960 | 268 | make-local mapcar constants suspicious lexical) |
4795d1c7 | 269 | "The list of warning types used when `byte-compile-warnings' is t.") |
713ea1de | 270 | (defcustom byte-compile-warnings t |
2b9c3b12 | 271 | "List of warnings that the byte-compiler should issue (t for all). |
4795d1c7 | 272 | |
9bb2e9f8 | 273 | Elements of the list may be: |
9e2b097b JB |
274 | |
275 | free-vars references to variables not in the current lexical scope. | |
276 | unresolved calls to unknown functions. | |
11efeb9b RS |
277 | callargs function calls with args that don't match the definition. |
278 | redefine function name redefined from a macro to ordinary function or vice | |
9e2b097b | 279 | versa, or redefined to take a different number of arguments. |
4795d1c7 RS |
280 | obsolete obsolete variables and functions. |
281 | noruntime functions that may not be defined at runtime (typically | |
282 | defined only under `eval-when-compile'). | |
6b8c2efc | 283 | cl-functions calls to runtime functions from the CL package (as |
086af77c RS |
284 | distinguished from macros and aliases). |
285 | interactive-only | |
15ce9dcf | 286 | commands that normally shouldn't be called from Lisp code. |
86da2828 | 287 | make-local calls to make-variable-buffer-local that may be incorrect. |
cf637a34 | 288 | mapcar mapcar called for effect. |
416d3588 | 289 | constants let-binding of, or assignment to, constants/nonvariables. |
62a258a7 | 290 | suspicious constructs that usually don't do what the coder wanted. |
cf637a34 GM |
291 | |
292 | If the list begins with `not', then the remaining elements specify warnings to | |
293 | suppress. For example, (not mapcar) will suppress warnings about mapcar." | |
713ea1de | 294 | :group 'bytecomp |
4795d1c7 | 295 | :type `(choice (const :tag "All" t) |
aa635691 | 296 | (set :menu-tag "Some" |
62a258a7 SM |
297 | ,@(mapcar (lambda (x) `(const ,x)) |
298 | byte-compile-warning-types)))) | |
6a831405 GM |
299 | ;;;###autoload(put 'byte-compile-warnings 'safe-local-variable 'byte-compile-warnings-safe-p) |
300 | ||
0027258d RS |
301 | ;;;###autoload |
302 | (defun byte-compile-warnings-safe-p (x) | |
daedb196 | 303 | "Return non-nil if X is valid as a value of `byte-compile-warnings'." |
0027258d RS |
304 | (or (booleanp x) |
305 | (and (listp x) | |
cf637a34 GM |
306 | (if (eq (car x) 'not) (setq x (cdr x)) |
307 | t) | |
0027258d RS |
308 | (equal (mapcar |
309 | (lambda (e) | |
daedb196 | 310 | (when (memq e byte-compile-warning-types) |
0027258d RS |
311 | e)) |
312 | x) | |
313 | x)))) | |
086af77c | 314 | |
cf637a34 GM |
315 | (defun byte-compile-warning-enabled-p (warning) |
316 | "Return non-nil if WARNING is enabled, according to `byte-compile-warnings'." | |
317 | (or (eq byte-compile-warnings t) | |
318 | (if (eq (car byte-compile-warnings) 'not) | |
319 | (not (memq warning byte-compile-warnings)) | |
320 | (memq warning byte-compile-warnings)))) | |
321 | ||
322 | ;;;###autoload | |
323 | (defun byte-compile-disable-warning (warning) | |
324 | "Change `byte-compile-warnings' to disable WARNING. | |
325 | If `byte-compile-warnings' is t, set it to `(not WARNING)'. | |
798bd437 GM |
326 | Otherwise, if the first element is `not', add WARNING, else remove it. |
327 | Normally you should let-bind `byte-compile-warnings' before calling this, | |
328 | else the global value will be modified." | |
cf637a34 GM |
329 | (setq byte-compile-warnings |
330 | (cond ((eq byte-compile-warnings t) | |
331 | (list 'not warning)) | |
332 | ((eq (car byte-compile-warnings) 'not) | |
333 | (if (memq warning byte-compile-warnings) | |
334 | byte-compile-warnings | |
335 | (append byte-compile-warnings (list warning)))) | |
336 | (t | |
337 | (delq warning byte-compile-warnings))))) | |
338 | ||
339 | ;;;###autoload | |
340 | (defun byte-compile-enable-warning (warning) | |
341 | "Change `byte-compile-warnings' to enable WARNING. | |
342 | If `byte-compile-warnings' is `t', do nothing. Otherwise, if the | |
798bd437 GM |
343 | first element is `not', remove WARNING, else add it. |
344 | Normally you should let-bind `byte-compile-warnings' before calling this, | |
345 | else the global value will be modified." | |
cf637a34 GM |
346 | (or (eq byte-compile-warnings t) |
347 | (setq byte-compile-warnings | |
348 | (cond ((eq (car byte-compile-warnings) 'not) | |
349 | (delq warning byte-compile-warnings)) | |
350 | ((memq warning byte-compile-warnings) | |
351 | byte-compile-warnings) | |
352 | (t | |
353 | (append byte-compile-warnings (list warning))))))) | |
354 | ||
086af77c RS |
355 | (defvar byte-compile-interactive-only-functions |
356 | '(beginning-of-buffer end-of-buffer replace-string replace-regexp | |
dfd4e693 | 357 | insert-file insert-buffer insert-file-literally previous-line next-line |
dd9b52a6 | 358 | goto-line comint-run delete-backward-char) |
086af77c | 359 | "List of commands that are not meant to be called from Lisp.") |
1c393159 | 360 | |
8480fc7c GM |
361 | (defvar byte-compile-not-obsolete-vars nil |
362 | "If non-nil, a list of variables that shouldn't be reported as obsolete.") | |
363 | ||
364 | (defvar byte-compile-not-obsolete-funcs nil | |
365 | "If non-nil, a list of functions that shouldn't be reported as obsolete.") | |
6b61353c | 366 | |
713ea1de | 367 | (defcustom byte-compile-generate-call-tree nil |
2b9c3b12 | 368 | "Non-nil means collect call-graph information when compiling. |
78bba1c8 | 369 | This records which functions were called and from where. |
52799cb8 RS |
370 | If the value is t, compilation displays the call graph when it finishes. |
371 | If the value is neither t nor nil, compilation asks you whether to display | |
372 | the graph. | |
1c393159 JB |
373 | |
374 | The call tree only lists functions called, not macros used. Those functions | |
375 | which the byte-code interpreter knows about directly (eq, cons, etc.) are | |
376 | not reported. | |
377 | ||
378 | The call tree also lists those functions which are not known to be called | |
5023d9a0 | 379 | \(that is, to which no calls have been compiled). Functions which can be |
713ea1de RS |
380 | invoked interactively are excluded from this list." |
381 | :group 'bytecomp | |
382 | :type '(choice (const :tag "Yes" t) (const :tag "No" nil) | |
778c7576 | 383 | (other :tag "Ask" lambda))) |
1c393159 | 384 | |
2b9c3b12 JB |
385 | (defvar byte-compile-call-tree nil |
386 | "Alist of functions and their call tree. | |
1c393159 JB |
387 | Each element looks like |
388 | ||
389 | \(FUNCTION CALLERS CALLS\) | |
390 | ||
391 | where CALLERS is a list of functions that call FUNCTION, and CALLS | |
392 | is a list of functions for which calls were generated while compiling | |
393 | FUNCTION.") | |
394 | ||
713ea1de | 395 | (defcustom byte-compile-call-tree-sort 'name |
2b9c3b12 | 396 | "If non-nil, sort the call tree. |
52799cb8 | 397 | The values `name', `callers', `calls', `calls+callers' |
713ea1de RS |
398 | specify different fields to sort on." |
399 | :group 'bytecomp | |
400 | :type '(choice (const name) (const callers) (const calls) | |
401 | (const calls+callers) (const nil))) | |
52799cb8 | 402 | |
ccb3c8de | 403 | (defvar byte-compile-debug nil) |
1c393159 | 404 | (defvar byte-compile-constants nil |
a586093f | 405 | "List of all constants encountered during compilation of this form.") |
1c393159 | 406 | (defvar byte-compile-variables nil |
a586093f | 407 | "List of all variables encountered during compilation of this form.") |
1c393159 | 408 | (defvar byte-compile-bound-variables nil |
b92dd692 DL |
409 | "List of variables bound in the context of the current form. |
410 | This list lives partly on the stack.") | |
6c2161c4 SM |
411 | (defvar byte-compile-const-variables nil |
412 | "List of variables declared as constants during compilation of this file.") | |
1c393159 JB |
413 | (defvar byte-compile-free-references) |
414 | (defvar byte-compile-free-assignments) | |
415 | ||
ab94e6e7 RS |
416 | (defvar byte-compiler-error-flag) |
417 | ||
1c393159 | 418 | (defconst byte-compile-initial-macro-environment |
52799cb8 RS |
419 | '( |
420 | ;; (byte-compiler-options . (lambda (&rest forms) | |
421 | ;; (apply 'byte-compiler-options-handler forms))) | |
1c393159 | 422 | (eval-when-compile . (lambda (&rest body) |
a586093f SM |
423 | (list 'quote |
424 | (byte-compile-eval (byte-compile-top-level | |
425 | (cons 'progn body)))))) | |
1c393159 | 426 | (eval-and-compile . (lambda (&rest body) |
4795d1c7 | 427 | (byte-compile-eval-before-compile (cons 'progn body)) |
1c393159 JB |
428 | (cons 'progn body)))) |
429 | "The default macro-environment passed to macroexpand by the compiler. | |
430 | Placing a macro here will cause a macro to have different semantics when | |
431 | expanded by the compiler as when expanded by the interpreter.") | |
432 | ||
433 | (defvar byte-compile-macro-environment byte-compile-initial-macro-environment | |
52799cb8 RS |
434 | "Alist of macros defined in the file being compiled. |
435 | Each element looks like (MACRONAME . DEFINITION). It is | |
e27c3564 | 436 | \(MACRONAME . nil) when a macro is redefined as a function.") |
1c393159 JB |
437 | |
438 | (defvar byte-compile-function-environment nil | |
52799cb8 RS |
439 | "Alist of functions defined in the file being compiled. |
440 | This is so we can inline them when necessary. | |
441 | Each element looks like (FUNCTIONNAME . DEFINITION). It is | |
a7a7ddf1 RS |
442 | \(FUNCTIONNAME . nil) when a function is redefined as a macro. |
443 | It is \(FUNCTIONNAME . t) when all we know is that it was defined, | |
cb4fb1d0 GM |
444 | and we don't know the definition. For an autoloaded function, DEFINITION |
445 | has the form (autoload . FILENAME).") | |
1c393159 JB |
446 | |
447 | (defvar byte-compile-unresolved-functions nil | |
a586093f | 448 | "Alist of undefined functions to which calls have been compiled. |
2cb63a7c AM |
449 | This variable is only significant whilst compiling an entire buffer. |
450 | Used for warnings when a function is not known to be defined or is later | |
a586093f | 451 | defined with incorrect args.") |
1c393159 | 452 | |
6b61353c KH |
453 | (defvar byte-compile-noruntime-functions nil |
454 | "Alist of functions called that may not be defined when the compiled code is run. | |
455 | Used for warnings about calling a function that is defined during compilation | |
456 | but won't necessarily be defined when the compiled file is loaded.") | |
457 | ||
1c393159 JB |
458 | (defvar byte-compile-tag-number 0) |
459 | (defvar byte-compile-output nil | |
460 | "Alist describing contents to put in byte code string. | |
461 | Each element is (INDEX . VALUE)") | |
462 | (defvar byte-compile-depth 0 "Current depth of execution stack.") | |
463 | (defvar byte-compile-maxdepth 0 "Maximum depth of execution stack.") | |
464 | ||
465 | \f | |
466 | ;;; The byte codes; this information is duplicated in bytecomp.c | |
467 | ||
fef3407e | 468 | (defvar byte-code-vector nil |
1c393159 JB |
469 | "An array containing byte-code names indexed by byte-code values.") |
470 | ||
fef3407e | 471 | (defvar byte-stack+-info nil |
1c393159 JB |
472 | "An array with the stack adjustment for each byte-code.") |
473 | ||
474 | (defmacro byte-defop (opcode stack-adjust opname &optional docstring) | |
475 | ;; This is a speed-hack for building the byte-code-vector at compile-time. | |
476 | ;; We fill in the vector at macroexpand-time, and then after the last call | |
477 | ;; to byte-defop, we write the vector out as a constant instead of writing | |
478 | ;; out a bunch of calls to aset. | |
479 | ;; Actually, we don't fill in the vector itself, because that could make | |
480 | ;; it problematic to compile big changes to this compiler; we store the | |
481 | ;; values on its plist, and remove them later in -extrude. | |
482 | (let ((v1 (or (get 'byte-code-vector 'tmp-compile-time-value) | |
483 | (put 'byte-code-vector 'tmp-compile-time-value | |
484 | (make-vector 256 nil)))) | |
485 | (v2 (or (get 'byte-stack+-info 'tmp-compile-time-value) | |
486 | (put 'byte-stack+-info 'tmp-compile-time-value | |
487 | (make-vector 256 nil))))) | |
488 | (aset v1 opcode opname) | |
489 | (aset v2 opcode stack-adjust)) | |
490 | (if docstring | |
491 | (list 'defconst opname opcode (concat "Byte code opcode " docstring ".")) | |
492 | (list 'defconst opname opcode))) | |
493 | ||
494 | (defmacro byte-extrude-byte-code-vectors () | |
495 | (prog1 (list 'setq 'byte-code-vector | |
496 | (get 'byte-code-vector 'tmp-compile-time-value) | |
497 | 'byte-stack+-info | |
498 | (get 'byte-stack+-info 'tmp-compile-time-value)) | |
fd9b0a6b DL |
499 | (put 'byte-code-vector 'tmp-compile-time-value nil) |
500 | (put 'byte-stack+-info 'tmp-compile-time-value nil))) | |
1c393159 JB |
501 | |
502 | ||
503 | ;; unused: 0-7 | |
504 | ||
505 | ;; These opcodes are special in that they pack their argument into the | |
506 | ;; opcode word. | |
507 | ;; | |
508 | (byte-defop 8 1 byte-varref "for variable reference") | |
509 | (byte-defop 16 -1 byte-varset "for setting a variable") | |
510 | (byte-defop 24 -1 byte-varbind "for binding a variable") | |
511 | (byte-defop 32 0 byte-call "for calling a function") | |
512 | (byte-defop 40 0 byte-unbind "for unbinding special bindings") | |
eb8c3be9 | 513 | ;; codes 8-47 are consumed by the preceding opcodes |
1c393159 JB |
514 | |
515 | ;; unused: 48-55 | |
516 | ||
517 | (byte-defop 56 -1 byte-nth) | |
518 | (byte-defop 57 0 byte-symbolp) | |
519 | (byte-defop 58 0 byte-consp) | |
520 | (byte-defop 59 0 byte-stringp) | |
521 | (byte-defop 60 0 byte-listp) | |
522 | (byte-defop 61 -1 byte-eq) | |
523 | (byte-defop 62 -1 byte-memq) | |
524 | (byte-defop 63 0 byte-not) | |
525 | (byte-defop 64 0 byte-car) | |
526 | (byte-defop 65 0 byte-cdr) | |
527 | (byte-defop 66 -1 byte-cons) | |
528 | (byte-defop 67 0 byte-list1) | |
529 | (byte-defop 68 -1 byte-list2) | |
530 | (byte-defop 69 -2 byte-list3) | |
531 | (byte-defop 70 -3 byte-list4) | |
532 | (byte-defop 71 0 byte-length) | |
533 | (byte-defop 72 -1 byte-aref) | |
534 | (byte-defop 73 -2 byte-aset) | |
535 | (byte-defop 74 0 byte-symbol-value) | |
536 | (byte-defop 75 0 byte-symbol-function) ; this was commented out | |
537 | (byte-defop 76 -1 byte-set) | |
538 | (byte-defop 77 -1 byte-fset) ; this was commented out | |
539 | (byte-defop 78 -1 byte-get) | |
540 | (byte-defop 79 -2 byte-substring) | |
541 | (byte-defop 80 -1 byte-concat2) | |
542 | (byte-defop 81 -2 byte-concat3) | |
543 | (byte-defop 82 -3 byte-concat4) | |
544 | (byte-defop 83 0 byte-sub1) | |
545 | (byte-defop 84 0 byte-add1) | |
546 | (byte-defop 85 -1 byte-eqlsign) | |
547 | (byte-defop 86 -1 byte-gtr) | |
548 | (byte-defop 87 -1 byte-lss) | |
549 | (byte-defop 88 -1 byte-leq) | |
550 | (byte-defop 89 -1 byte-geq) | |
551 | (byte-defop 90 -1 byte-diff) | |
552 | (byte-defop 91 0 byte-negate) | |
553 | (byte-defop 92 -1 byte-plus) | |
554 | (byte-defop 93 -1 byte-max) | |
555 | (byte-defop 94 -1 byte-min) | |
556 | (byte-defop 95 -1 byte-mult) ; v19 only | |
557 | (byte-defop 96 1 byte-point) | |
1c393159 JB |
558 | (byte-defop 98 0 byte-goto-char) |
559 | (byte-defop 99 0 byte-insert) | |
560 | (byte-defop 100 1 byte-point-max) | |
561 | (byte-defop 101 1 byte-point-min) | |
562 | (byte-defop 102 0 byte-char-after) | |
563 | (byte-defop 103 1 byte-following-char) | |
564 | (byte-defop 104 1 byte-preceding-char) | |
565 | (byte-defop 105 1 byte-current-column) | |
566 | (byte-defop 106 0 byte-indent-to) | |
567 | (byte-defop 107 0 byte-scan-buffer-OBSOLETE) ; no longer generated as of v18 | |
568 | (byte-defop 108 1 byte-eolp) | |
569 | (byte-defop 109 1 byte-eobp) | |
570 | (byte-defop 110 1 byte-bolp) | |
571 | (byte-defop 111 1 byte-bobp) | |
572 | (byte-defop 112 1 byte-current-buffer) | |
573 | (byte-defop 113 0 byte-set-buffer) | |
78943c8a RS |
574 | (byte-defop 114 0 byte-save-current-buffer |
575 | "To make a binding to record the current buffer") | |
1c393159 JB |
576 | (byte-defop 115 0 byte-set-mark-OBSOLETE) |
577 | (byte-defop 116 1 byte-interactive-p) | |
578 | ||
579 | ;; These ops are new to v19 | |
580 | (byte-defop 117 0 byte-forward-char) | |
581 | (byte-defop 118 0 byte-forward-word) | |
582 | (byte-defop 119 -1 byte-skip-chars-forward) | |
583 | (byte-defop 120 -1 byte-skip-chars-backward) | |
584 | (byte-defop 121 0 byte-forward-line) | |
585 | (byte-defop 122 0 byte-char-syntax) | |
586 | (byte-defop 123 -1 byte-buffer-substring) | |
587 | (byte-defop 124 -1 byte-delete-region) | |
588 | (byte-defop 125 -1 byte-narrow-to-region) | |
589 | (byte-defop 126 1 byte-widen) | |
590 | (byte-defop 127 0 byte-end-of-line) | |
591 | ||
592 | ;; unused: 128 | |
593 | ||
594 | ;; These store their argument in the next two bytes | |
595 | (byte-defop 129 1 byte-constant2 | |
596 | "for reference to a constant with vector index >= byte-constant-limit") | |
597 | (byte-defop 130 0 byte-goto "for unconditional jump") | |
598 | (byte-defop 131 -1 byte-goto-if-nil "to pop value and jump if it's nil") | |
599 | (byte-defop 132 -1 byte-goto-if-not-nil "to pop value and jump if it's not nil") | |
600 | (byte-defop 133 -1 byte-goto-if-nil-else-pop | |
c5091f25 | 601 | "to examine top-of-stack, jump and don't pop it if it's nil, |
1c393159 JB |
602 | otherwise pop it") |
603 | (byte-defop 134 -1 byte-goto-if-not-nil-else-pop | |
c5091f25 | 604 | "to examine top-of-stack, jump and don't pop it if it's non nil, |
1c393159 JB |
605 | otherwise pop it") |
606 | ||
607 | (byte-defop 135 -1 byte-return "to pop a value and return it from `byte-code'") | |
608 | (byte-defop 136 -1 byte-discard "to discard one value from stack") | |
609 | (byte-defop 137 1 byte-dup "to duplicate the top of the stack") | |
610 | ||
611 | (byte-defop 138 0 byte-save-excursion | |
612 | "to make a binding to record the buffer, point and mark") | |
613 | (byte-defop 139 0 byte-save-window-excursion | |
614 | "to make a binding to record entire window configuration") | |
615 | (byte-defop 140 0 byte-save-restriction | |
616 | "to make a binding to record the current buffer clipping restrictions") | |
617 | (byte-defop 141 -1 byte-catch | |
618 | "for catch. Takes, on stack, the tag and an expression for the body") | |
619 | (byte-defop 142 -1 byte-unwind-protect | |
620 | "for unwind-protect. Takes, on stack, an expression for the unwind-action") | |
621 | ||
c5091f25 | 622 | ;; For condition-case. Takes, on stack, the variable to bind, |
52799cb8 RS |
623 | ;; an expression for the body, and a list of clauses. |
624 | (byte-defop 143 -2 byte-condition-case) | |
1c393159 | 625 | |
52799cb8 RS |
626 | ;; For entry to with-output-to-temp-buffer. |
627 | ;; Takes, on stack, the buffer name. | |
628 | ;; Binds standard-output and does some other things. | |
629 | ;; Returns with temp buffer on the stack in place of buffer name. | |
630 | (byte-defop 144 0 byte-temp-output-buffer-setup) | |
1c393159 | 631 | |
52799cb8 RS |
632 | ;; For exit from with-output-to-temp-buffer. |
633 | ;; Expects the temp buffer on the stack underneath value to return. | |
634 | ;; Pops them both, then pushes the value back on. | |
635 | ;; Unbinds standard-output and makes the temp buffer visible. | |
636 | (byte-defop 145 -1 byte-temp-output-buffer-show) | |
1c393159 JB |
637 | |
638 | ;; these ops are new to v19 | |
52799cb8 RS |
639 | |
640 | ;; To unbind back to the beginning of this frame. | |
69dc83fd | 641 | ;; Not used yet, but will be needed for tail-recursion elimination. |
52799cb8 | 642 | (byte-defop 146 0 byte-unbind-all) |
1c393159 JB |
643 | |
644 | ;; these ops are new to v19 | |
645 | (byte-defop 147 -2 byte-set-marker) | |
646 | (byte-defop 148 0 byte-match-beginning) | |
647 | (byte-defop 149 0 byte-match-end) | |
648 | (byte-defop 150 0 byte-upcase) | |
649 | (byte-defop 151 0 byte-downcase) | |
650 | (byte-defop 152 -1 byte-string=) | |
651 | (byte-defop 153 -1 byte-string<) | |
652 | (byte-defop 154 -1 byte-equal) | |
653 | (byte-defop 155 -1 byte-nthcdr) | |
654 | (byte-defop 156 -1 byte-elt) | |
655 | (byte-defop 157 -1 byte-member) | |
656 | (byte-defop 158 -1 byte-assq) | |
657 | (byte-defop 159 0 byte-nreverse) | |
658 | (byte-defop 160 -1 byte-setcar) | |
659 | (byte-defop 161 -1 byte-setcdr) | |
660 | (byte-defop 162 0 byte-car-safe) | |
661 | (byte-defop 163 0 byte-cdr-safe) | |
662 | (byte-defop 164 -1 byte-nconc) | |
663 | (byte-defop 165 -1 byte-quo) | |
664 | (byte-defop 166 -1 byte-rem) | |
665 | (byte-defop 167 0 byte-numberp) | |
666 | (byte-defop 168 0 byte-integerp) | |
667 | ||
3eac9910 | 668 | ;; unused: 169-174 |
1c393159 JB |
669 | (byte-defop 175 nil byte-listN) |
670 | (byte-defop 176 nil byte-concatN) | |
671 | (byte-defop 177 nil byte-insertN) | |
672 | ||
673 | ;; unused: 178-191 | |
674 | ||
675 | (byte-defop 192 1 byte-constant "for reference to a constant") | |
676 | ;; codes 193-255 are consumed by byte-constant. | |
677 | (defconst byte-constant-limit 64 | |
678 | "Exclusive maximum index usable in the `byte-constant' opcode.") | |
679 | ||
680 | (defconst byte-goto-ops '(byte-goto byte-goto-if-nil byte-goto-if-not-nil | |
681 | byte-goto-if-nil-else-pop | |
682 | byte-goto-if-not-nil-else-pop) | |
52799cb8 | 683 | "List of byte-codes whose offset is a pc.") |
1c393159 JB |
684 | |
685 | (defconst byte-goto-always-pop-ops '(byte-goto-if-nil byte-goto-if-not-nil)) | |
686 | ||
1c393159 JB |
687 | (byte-extrude-byte-code-vectors) |
688 | \f | |
689 | ;;; lapcode generator | |
3614fc84 GM |
690 | ;; |
691 | ;; the byte-compiler now does source -> lapcode -> bytecode instead of | |
692 | ;; source -> bytecode, because it's a lot easier to make optimizations | |
693 | ;; on lapcode than on bytecode. | |
694 | ;; | |
695 | ;; Elements of the lapcode list are of the form (<instruction> . <parameter>) | |
696 | ;; where instruction is a symbol naming a byte-code instruction, | |
697 | ;; and parameter is an argument to that instruction, if any. | |
698 | ;; | |
699 | ;; The instruction can be the pseudo-op TAG, which means that this position | |
700 | ;; in the instruction stream is a target of a goto. (car PARAMETER) will be | |
701 | ;; the PC for this location, and the whole instruction "(TAG pc)" will be the | |
702 | ;; parameter for some goto op. | |
703 | ;; | |
704 | ;; If the operation is varbind, varref, varset or push-constant, then the | |
705 | ;; parameter is (variable/constant . index_in_constant_vector). | |
706 | ;; | |
707 | ;; First, the source code is macroexpanded and optimized in various ways. | |
708 | ;; Then the resultant code is compiled into lapcode. Another set of | |
709 | ;; optimizations are then run over the lapcode. Then the variables and | |
710 | ;; constants referenced by the lapcode are collected and placed in the | |
711 | ;; constants-vector. (This happens now so that variables referenced by dead | |
712 | ;; code don't consume space.) And finally, the lapcode is transformed into | |
713 | ;; compacted byte-code. | |
714 | ;; | |
715 | ;; A distinction is made between variables and constants because the variable- | |
716 | ;; referencing instructions are more sensitive to the variables being near the | |
717 | ;; front of the constants-vector than the constant-referencing instructions. | |
718 | ;; Also, this lets us notice references to free variables. | |
1c393159 JB |
719 | |
720 | (defun byte-compile-lapcode (lap) | |
721 | "Turns lapcode into bytecode. The lapcode is destroyed." | |
722 | ;; Lapcode modifications: changes the ID of a tag to be the tag's PC. | |
723 | (let ((pc 0) ; Program counter | |
724 | op off ; Operation & offset | |
725 | (bytes '()) ; Put the output bytes here | |
6c2161c4 | 726 | (patchlist nil)) ; List of tags and goto's to patch |
1c393159 JB |
727 | (while lap |
728 | (setq op (car (car lap)) | |
729 | off (cdr (car lap))) | |
730 | (cond ((not (symbolp op)) | |
52799cb8 | 731 | (error "Non-symbolic opcode `%s'" op)) |
1c393159 JB |
732 | ((eq op 'TAG) |
733 | (setcar off pc) | |
734 | (setq patchlist (cons off patchlist))) | |
735 | ((memq op byte-goto-ops) | |
736 | (setq pc (+ pc 3)) | |
737 | (setq bytes (cons (cons pc (cdr off)) | |
738 | (cons nil | |
739 | (cons (symbol-value op) bytes)))) | |
740 | (setq patchlist (cons bytes patchlist))) | |
741 | (t | |
742 | (setq bytes | |
743 | (cond ((cond ((consp off) | |
744 | ;; Variable or constant reference | |
745 | (setq off (cdr off)) | |
746 | (eq op 'byte-constant))) | |
747 | (cond ((< off byte-constant-limit) | |
748 | (setq pc (1+ pc)) | |
749 | (cons (+ byte-constant off) bytes)) | |
750 | (t | |
751 | (setq pc (+ 3 pc)) | |
752 | (cons (lsh off -8) | |
753 | (cons (logand off 255) | |
754 | (cons byte-constant2 bytes)))))) | |
755 | ((<= byte-listN (symbol-value op)) | |
756 | (setq pc (+ 2 pc)) | |
757 | (cons off (cons (symbol-value op) bytes))) | |
758 | ((< off 6) | |
759 | (setq pc (1+ pc)) | |
760 | (cons (+ (symbol-value op) off) bytes)) | |
761 | ((< off 256) | |
762 | (setq pc (+ 2 pc)) | |
763 | (cons off (cons (+ (symbol-value op) 6) bytes))) | |
764 | (t | |
765 | (setq pc (+ 3 pc)) | |
766 | (cons (lsh off -8) | |
767 | (cons (logand off 255) | |
768 | (cons (+ (symbol-value op) 7) | |
769 | bytes)))))))) | |
770 | (setq lap (cdr lap))) | |
771 | ;;(if (not (= pc (length bytes))) | |
52799cb8 | 772 | ;; (error "Compiler error: pc mismatch - %s %s" pc (length bytes))) |
1c393159 JB |
773 | ;; Patch PC into jumps |
774 | (let (bytes) | |
775 | (while patchlist | |
776 | (setq bytes (car patchlist)) | |
777 | (cond ((atom (car bytes))) ; Tag | |
1c393159 JB |
778 | (t ; Absolute jump |
779 | (setq pc (car (cdr (car bytes)))) ; Pick PC from tag | |
780 | (setcar (cdr bytes) (logand pc 255)) | |
8476cfaf SM |
781 | (setcar bytes (lsh pc -8)) |
782 | ;; FIXME: Replace this by some workaround. | |
636a36a0 | 783 | (if (> (car bytes) 255) (error "Bytecode overflow")))) |
1c393159 | 784 | (setq patchlist (cdr patchlist)))) |
da9e269f | 785 | (apply 'unibyte-string (nreverse bytes)))) |
1c393159 JB |
786 | |
787 | \f | |
a586093f SM |
788 | ;;; compile-time evaluation |
789 | ||
3f12e5bd GM |
790 | (defun byte-compile-cl-file-p (file) |
791 | "Return non-nil if FILE is one of the CL files." | |
792 | (and (stringp file) | |
793 | (string-match "^cl\\>" (file-name-nondirectory file)))) | |
794 | ||
ea4b0ca3 SM |
795 | (defun byte-compile-eval (form) |
796 | "Eval FORM and mark the functions defined therein. | |
6b61353c | 797 | Each function's symbol gets added to `byte-compile-noruntime-functions'." |
a586093f SM |
798 | (let ((hist-orig load-history) |
799 | (hist-nil-orig current-load-list)) | |
ea4b0ca3 | 800 | (prog1 (eval form) |
cf637a34 | 801 | (when (byte-compile-warning-enabled-p 'noruntime) |
a586093f SM |
802 | (let ((hist-new load-history) |
803 | (hist-nil-new current-load-list)) | |
ea4b0ca3 SM |
804 | ;; Go through load-history, look for newly loaded files |
805 | ;; and mark all the functions defined therein. | |
806 | (while (and hist-new (not (eq hist-new hist-orig))) | |
d1a57439 RS |
807 | (let ((xs (pop hist-new)) |
808 | old-autoloads) | |
ea4b0ca3 | 809 | ;; Make sure the file was not already loaded before. |
997011eb | 810 | (unless (or (assoc (car xs) hist-orig) |
3f12e5bd GM |
811 | ;; Don't give both the "noruntime" and |
812 | ;; "cl-functions" warning for the same function. | |
813 | ;; FIXME This seems incorrect - these are two | |
814 | ;; independent warnings. For example, you may be | |
815 | ;; choosing to see the cl warnings but ignore them. | |
816 | ;; You probably don't want to ignore noruntime in the | |
817 | ;; same way. | |
818 | (and (byte-compile-warning-enabled-p 'cl-functions) | |
819 | (byte-compile-cl-file-p (car xs)))) | |
ea4b0ca3 SM |
820 | (dolist (s xs) |
821 | (cond | |
d1a57439 RS |
822 | ((symbolp s) |
823 | (unless (memq s old-autoloads) | |
6b61353c | 824 | (push s byte-compile-noruntime-functions))) |
d1a57439 | 825 | ((and (consp s) (eq t (car s))) |
6c2161c4 | 826 | (push (cdr s) old-autoloads)) |
ea4b0ca3 | 827 | ((and (consp s) (eq 'autoload (car s))) |
6b61353c | 828 | (push (cdr s) byte-compile-noruntime-functions))))))) |
ea4b0ca3 | 829 | ;; Go through current-load-list for the locally defined funs. |
d1a57439 RS |
830 | (let (old-autoloads) |
831 | (while (and hist-nil-new (not (eq hist-nil-new hist-nil-orig))) | |
832 | (let ((s (pop hist-nil-new))) | |
833 | (when (and (symbolp s) (not (memq s old-autoloads))) | |
6b61353c | 834 | (push s byte-compile-noruntime-functions)) |
d1a57439 | 835 | (when (and (consp s) (eq t (car s))) |
997011eb | 836 | (push (cdr s) old-autoloads))))))) |
cf637a34 | 837 | (when (byte-compile-warning-enabled-p 'cl-functions) |
b8104a2b | 838 | (let ((hist-new load-history)) |
3f12e5bd GM |
839 | ;; Go through load-history, looking for the cl files. |
840 | ;; Since new files are added at the start of load-history, | |
841 | ;; we scan the new history until the tail matches the old. | |
842 | (while (and (not byte-compile-cl-functions) | |
843 | hist-new (not (eq hist-new hist-orig))) | |
844 | ;; We used to check if the file had already been loaded, | |
845 | ;; but it is better to check non-nil byte-compile-cl-functions. | |
846 | (and (byte-compile-cl-file-p (car (pop hist-new))) | |
847 | (byte-compile-find-cl-functions)))))))) | |
a586093f | 848 | |
4795d1c7 RS |
849 | (defun byte-compile-eval-before-compile (form) |
850 | "Evaluate FORM for `eval-and-compile'." | |
851 | (let ((hist-nil-orig current-load-list)) | |
852 | (prog1 (eval form) | |
853 | ;; (eval-and-compile (require 'cl) turns off warnings for cl functions. | |
3f12e5bd GM |
854 | ;; FIXME Why does it do that - just as a hack? |
855 | ;; There are other ways to do this nowadays. | |
4795d1c7 RS |
856 | (let ((tem current-load-list)) |
857 | (while (not (eq tem hist-nil-orig)) | |
858 | (when (equal (car tem) '(require . cl)) | |
cf637a34 | 859 | (byte-compile-disable-warning 'cl-functions)) |
4795d1c7 | 860 | (setq tem (cdr tem))))))) |
a586093f | 861 | \f |
1c393159 JB |
862 | ;;; byte compiler messages |
863 | ||
d82e848c | 864 | (defvar byte-compile-current-form nil) |
d82e848c | 865 | (defvar byte-compile-dest-file nil) |
9985d391 | 866 | (defvar byte-compile-current-file nil) |
ab5111e3 | 867 | (defvar byte-compile-current-group nil) |
ccb3c8de | 868 | (defvar byte-compile-current-buffer nil) |
6a619620 | 869 | |
22788fb8 | 870 | ;; Log something that isn't a warning. |
1c393159 | 871 | (defmacro byte-compile-log (format-string &rest args) |
b88a41d0 SM |
872 | `(and |
873 | byte-optimize | |
874 | (memq byte-optimize-log '(t source)) | |
875 | (let ((print-escape-newlines t) | |
876 | (print-level 4) | |
877 | (print-length 4)) | |
878 | (byte-compile-log-1 | |
879 | (format | |
880 | ,format-string | |
881 | ,@(mapcar | |
882 | (lambda (x) (if (symbolp x) (list 'prin1-to-string x) x)) | |
883 | args)))))) | |
1c393159 | 884 | |
22788fb8 RS |
885 | ;; Log something that isn't a warning. |
886 | (defun byte-compile-log-1 (string) | |
b88a41d0 | 887 | (with-current-buffer "*Compile-Log*" |
997011eb RS |
888 | (let ((inhibit-read-only t)) |
889 | (goto-char (point-max)) | |
890 | (byte-compile-warning-prefix nil nil) | |
891 | (cond (noninteractive | |
892 | (message " %s" string)) | |
893 | (t | |
894 | (insert (format "%s\n" string))))))) | |
1c393159 | 895 | |
ccb3c8de CW |
896 | (defvar byte-compile-read-position nil |
897 | "Character position we began the last `read' from.") | |
898 | (defvar byte-compile-last-position nil | |
899 | "Last known character position in the input.") | |
900 | ||
901 | ;; copied from gnus-util.el | |
1fd592a0 | 902 | (defsubst byte-compile-delete-first (elt list) |
ccb3c8de CW |
903 | (if (eq (car list) elt) |
904 | (cdr list) | |
905 | (let ((total list)) | |
906 | (while (and (cdr list) | |
907 | (not (eq (cadr list) elt))) | |
908 | (setq list (cdr list))) | |
909 | (when (cdr list) | |
910 | (setcdr list (cddr list))) | |
911 | total))) | |
912 | ||
913 | ;; The purpose of this function is to iterate through the | |
914 | ;; `read-symbol-positions-list'. Each time we process, say, a | |
915 | ;; function definition (`defun') we remove `defun' from | |
916 | ;; `read-symbol-positions-list', and set `byte-compile-last-position' | |
917 | ;; to that symbol's character position. Similarly, if we encounter a | |
918 | ;; variable reference, like in (1+ foo), we remove `foo' from the | |
919 | ;; list. If our current position is after the symbol's position, we | |
920 | ;; assume we've already passed that point, and look for the next | |
6b8c2efc | 921 | ;; occurrence of the symbol. |
4ec5239c LH |
922 | ;; |
923 | ;; This function should not be called twice for the same occurrence of | |
924 | ;; a symbol, and it should not be called for symbols generated by the | |
925 | ;; byte compiler itself; because rather than just fail looking up the | |
926 | ;; symbol, we may find an occurrence of the symbol further ahead, and | |
927 | ;; then `byte-compile-last-position' as advanced too far. | |
928 | ;; | |
6b8c2efc | 929 | ;; So your're probably asking yourself: Isn't this function a |
ccb3c8de CW |
930 | ;; gross hack? And the answer, of course, would be yes. |
931 | (defun byte-compile-set-symbol-position (sym &optional allow-previous) | |
932 | (when byte-compile-read-position | |
1fd592a0 | 933 | (let (last entry) |
ccb3c8de | 934 | (while (progn |
0b46acbf RS |
935 | (setq last byte-compile-last-position |
936 | entry (assq sym read-symbol-positions-list)) | |
937 | (when entry | |
938 | (setq byte-compile-last-position | |
939 | (+ byte-compile-read-position (cdr entry)) | |
940 | read-symbol-positions-list | |
941 | (byte-compile-delete-first | |
942 | entry read-symbol-positions-list))) | |
ccb3c8de CW |
943 | (or (and allow-previous (not (= last byte-compile-last-position))) |
944 | (> last byte-compile-last-position))))))) | |
b8175fe6 | 945 | |
22788fb8 RS |
946 | (defvar byte-compile-last-warned-form nil) |
947 | (defvar byte-compile-last-logged-file nil) | |
948 | ||
22788fb8 | 949 | ;; This is used as warning-prefix for the compiler. |
4390021b | 950 | ;; It is always called with the warnings buffer current. |
22788fb8 | 951 | (defun byte-compile-warning-prefix (level entry) |
997011eb RS |
952 | (let* ((inhibit-read-only t) |
953 | (dir default-directory) | |
4390021b RS |
954 | (file (cond ((stringp byte-compile-current-file) |
955 | (format "%s:" (file-relative-name byte-compile-current-file dir))) | |
b8175fe6 | 956 | ((bufferp byte-compile-current-file) |
1f006824 | 957 | (format "Buffer %s:" |
b8175fe6 GM |
958 | (buffer-name byte-compile-current-file))) |
959 | (t ""))) | |
1f006824 | 960 | (pos (if (and byte-compile-current-file |
ccb3c8de CW |
961 | (integerp byte-compile-read-position)) |
962 | (with-current-buffer byte-compile-current-buffer | |
ea1cb2bd | 963 | (format "%d:%d:" |
b0aa2c65 RS |
964 | (save-excursion |
965 | (goto-char byte-compile-last-position) | |
966 | (1+ (count-lines (point-min) (point-at-bol)))) | |
ccb3c8de CW |
967 | (save-excursion |
968 | (goto-char byte-compile-last-position) | |
969 | (1+ (current-column))))) | |
b8175fe6 | 970 | "")) |
4390021b RS |
971 | (form (if (eq byte-compile-current-form :end) "end of data" |
972 | (or byte-compile-current-form "toplevel form")))) | |
973 | (when (or (and byte-compile-current-file | |
974 | (not (equal byte-compile-current-file | |
975 | byte-compile-last-logged-file))) | |
6b61353c | 976 | (and byte-compile-current-form |
4390021b RS |
977 | (not (eq byte-compile-current-form |
978 | byte-compile-last-warned-form)))) | |
22788fb8 | 979 | (insert (format "\nIn %s:\n" form))) |
4390021b RS |
980 | (when level |
981 | (insert (format "%s%s" file pos)))) | |
cb3069bb | 982 | (setq byte-compile-last-logged-file byte-compile-current-file |
22788fb8 RS |
983 | byte-compile-last-warned-form byte-compile-current-form) |
984 | entry) | |
1c393159 | 985 | |
4390021b RS |
986 | ;; This no-op function is used as the value of warning-series |
987 | ;; to tell inner calls to displaying-byte-compile-warnings | |
988 | ;; not to bind warning-series. | |
989 | (defun byte-compile-warning-series (&rest ignore) | |
990 | nil) | |
991 | ||
db283402 | 992 | ;; (compile-mode) will cause this to be loaded. |
2c52d7a3 | 993 | (declare-function compilation-forget-errors "compile" ()) |
db283402 | 994 | |
144b2637 | 995 | ;; Log the start of a file in *Compile-Log*, and mark it as done. |
22788fb8 | 996 | ;; Return the position of the start of the page in the log buffer. |
144b2637 RS |
997 | ;; But do nothing in batch mode. |
998 | (defun byte-compile-log-file () | |
4390021b | 999 | (and (not (equal byte-compile-current-file byte-compile-last-logged-file)) |
cb3069bb | 1000 | (not noninteractive) |
008e2c2a | 1001 | (with-current-buffer (get-buffer-create "*Compile-Log*") |
ca96ae0b | 1002 | (goto-char (point-max)) |
997011eb RS |
1003 | (let* ((inhibit-read-only t) |
1004 | (dir (and byte-compile-current-file | |
4390021b RS |
1005 | (file-name-directory byte-compile-current-file))) |
1006 | (was-same (equal default-directory dir)) | |
1007 | pt) | |
1008 | (when dir | |
1009 | (unless was-same | |
1010 | (insert (format "Leaving directory `%s'\n" default-directory)))) | |
1011 | (unless (bolp) | |
1012 | (insert "\n")) | |
1013 | (setq pt (point-marker)) | |
1014 | (if byte-compile-current-file | |
1015 | (insert "\f\nCompiling " | |
1016 | (if (stringp byte-compile-current-file) | |
1017 | (concat "file " byte-compile-current-file) | |
1018 | (concat "buffer " (buffer-name byte-compile-current-file))) | |
1019 | " at " (current-time-string) "\n") | |
1020 | (insert "\f\nCompiling no file at " (current-time-string) "\n")) | |
1021 | (when dir | |
1022 | (setq default-directory dir) | |
1023 | (unless was-same | |
1024 | (insert (format "Entering directory `%s'\n" default-directory)))) | |
6b61353c KH |
1025 | (setq byte-compile-last-logged-file byte-compile-current-file |
1026 | byte-compile-last-warned-form nil) | |
977f31f8 | 1027 | ;; Do this after setting default-directory. |
5c7ffa04 | 1028 | (unless (derived-mode-p 'compilation-mode) (compilation-mode)) |
b88a41d0 | 1029 | (compilation-forget-errors) |
22788fb8 RS |
1030 | pt)))) |
1031 | ||
1032 | ;; Log a message STRING in *Compile-Log*. | |
1033 | ;; Also log the current function and file if not already done. | |
1034 | (defun byte-compile-log-warning (string &optional fill level) | |
1035 | (let ((warning-prefix-function 'byte-compile-warning-prefix) | |
6b61353c | 1036 | (warning-type-format "") |
997011eb RS |
1037 | (warning-fill-prefix (if fill " ")) |
1038 | (inhibit-read-only t)) | |
22788fb8 | 1039 | (display-warning 'bytecomp string level "*Compile-Log*"))) |
144b2637 | 1040 | |
1c393159 | 1041 | (defun byte-compile-warn (format &rest args) |
22788fb8 | 1042 | "Issue a byte compiler warning; use (format FORMAT ARGS...) for message." |
1c393159 JB |
1043 | (setq format (apply 'format format args)) |
1044 | (if byte-compile-error-on-warn | |
1045 | (error "%s" format) ; byte-compile-file catches and logs it | |
22788fb8 RS |
1046 | (byte-compile-log-warning format t :warning))) |
1047 | ||
5791bedf GM |
1048 | (defun byte-compile-warn-obsolete (symbol) |
1049 | "Warn that SYMBOL (a variable or function) is obsolete." | |
1050 | (when (byte-compile-warning-enabled-p 'obsolete) | |
1051 | (let* ((funcp (get symbol 'byte-obsolete-info)) | |
1052 | (obsolete (or funcp (get symbol 'byte-obsolete-variable))) | |
1053 | (instead (car obsolete)) | |
1054 | (asof (if funcp (nth 2 obsolete) (cdr obsolete)))) | |
8480fc7c GM |
1055 | (unless (and funcp (memq symbol byte-compile-not-obsolete-funcs)) |
1056 | (byte-compile-warn "`%s' is an obsolete %s%s%s" symbol | |
1057 | (if funcp "function" "variable") | |
1058 | (if asof (concat " (as of Emacs " asof ")") "") | |
1059 | (cond ((stringp instead) | |
1060 | (concat "; " instead)) | |
1061 | (instead | |
1062 | (format "; use `%s' instead." instead)) | |
1063 | (t "."))))))) | |
5791bedf | 1064 | |
0b030df7 | 1065 | (defun byte-compile-report-error (error-info) |
22788fb8 | 1066 | "Report Lisp error in compilation. ERROR-INFO is the error data." |
ab94e6e7 | 1067 | (setq byte-compiler-error-flag t) |
22788fb8 RS |
1068 | (byte-compile-log-warning |
1069 | (error-message-string error-info) | |
1070 | nil :error)) | |
0b030df7 | 1071 | |
1c393159 JB |
1072 | ;;; Used by make-obsolete. |
1073 | (defun byte-compile-obsolete (form) | |
5791bedf GM |
1074 | (byte-compile-set-symbol-position (car form)) |
1075 | (byte-compile-warn-obsolete (car form)) | |
1076 | (funcall (or (cadr (get (car form) 'byte-obsolete-info)) ; handler | |
1077 | 'byte-compile-normal-call) form)) | |
1c393159 | 1078 | \f |
1c393159 JB |
1079 | ;;; sanity-checking arglists |
1080 | ||
1081 | (defun byte-compile-fdefinition (name macro-p) | |
ced10a4c SM |
1082 | ;; If a function has an entry saying (FUNCTION . t). |
1083 | ;; that means we know it is defined but we don't know how. | |
1084 | ;; If a function has an entry saying (FUNCTION . nil), | |
1085 | ;; that means treat it as not defined. | |
1c393159 JB |
1086 | (let* ((list (if macro-p |
1087 | byte-compile-macro-environment | |
5286a842 | 1088 | byte-compile-function-environment)) |
1c393159 JB |
1089 | (env (cdr (assq name list)))) |
1090 | (or env | |
1091 | (let ((fn name)) | |
1092 | (while (and (symbolp fn) | |
1093 | (fboundp fn) | |
1094 | (or (symbolp (symbol-function fn)) | |
1095 | (consp (symbol-function fn)) | |
1096 | (and (not macro-p) | |
ed015bdd | 1097 | (byte-code-function-p (symbol-function fn))))) |
1c393159 | 1098 | (setq fn (symbol-function fn))) |
9d28c33e SM |
1099 | (let ((advertised (gethash (if (and (symbolp fn) (fboundp fn)) |
1100 | ;; Could be a subr. | |
1101 | (symbol-function fn) | |
1102 | fn) | |
1103 | advertised-signature-table t))) | |
ced10a4c SM |
1104 | (cond |
1105 | ((listp advertised) | |
1106 | (if macro-p | |
1107 | `(macro lambda ,advertised) | |
1108 | `(lambda ,advertised))) | |
1109 | ((and (not macro-p) (byte-code-function-p fn)) fn) | |
1110 | ((not (consp fn)) nil) | |
1111 | ((eq 'macro (car fn)) (cdr fn)) | |
1112 | (macro-p nil) | |
1113 | ((eq 'autoload (car fn)) nil) | |
1114 | (t fn))))))) | |
1c393159 JB |
1115 | |
1116 | (defun byte-compile-arglist-signature (arglist) | |
1117 | (let ((args 0) | |
1118 | opts | |
1119 | restp) | |
1120 | (while arglist | |
1121 | (cond ((eq (car arglist) '&optional) | |
1122 | (or opts (setq opts 0))) | |
1123 | ((eq (car arglist) '&rest) | |
1124 | (if (cdr arglist) | |
1125 | (setq restp t | |
1126 | arglist nil))) | |
1127 | (t | |
1128 | (if opts | |
1129 | (setq opts (1+ opts)) | |
1130 | (setq args (1+ args))))) | |
1131 | (setq arglist (cdr arglist))) | |
1132 | (cons args (if restp nil (if opts (+ args opts) args))))) | |
1133 | ||
1134 | ||
1135 | (defun byte-compile-arglist-signatures-congruent-p (old new) | |
1136 | (not (or | |
1137 | (> (car new) (car old)) ; requires more args now | |
a7acbbe4 | 1138 | (and (null (cdr old)) ; took rest-args, doesn't any more |
1c393159 JB |
1139 | (cdr new)) |
1140 | (and (cdr new) (cdr old) ; can't take as many args now | |
1141 | (< (cdr new) (cdr old))) | |
1142 | ))) | |
1143 | ||
1144 | (defun byte-compile-arglist-signature-string (signature) | |
1145 | (cond ((null (cdr signature)) | |
1146 | (format "%d+" (car signature))) | |
1147 | ((= (car signature) (cdr signature)) | |
1148 | (format "%d" (car signature))) | |
1149 | (t (format "%d-%d" (car signature) (cdr signature))))) | |
1150 | ||
1151 | ||
52799cb8 | 1152 | ;; Warn if the form is calling a function with the wrong number of arguments. |
1c393159 | 1153 | (defun byte-compile-callargs-warn (form) |
1c393159 JB |
1154 | (let* ((def (or (byte-compile-fdefinition (car form) nil) |
1155 | (byte-compile-fdefinition (car form) t))) | |
a7a7ddf1 | 1156 | (sig (if (and def (not (eq def t))) |
416d3588 GM |
1157 | (progn |
1158 | (and (eq (car-safe def) 'macro) | |
1159 | (eq (car-safe (cdr-safe def)) 'lambda) | |
1160 | (setq def (cdr def))) | |
1161 | (byte-compile-arglist-signature | |
1162 | (if (memq (car-safe def) '(declared lambda)) | |
1163 | (nth 1 def) | |
1164 | (if (byte-code-function-p def) | |
1165 | (aref def 0) | |
1166 | '(&rest def))))) | |
ed62683d DL |
1167 | (if (and (fboundp (car form)) |
1168 | (subrp (symbol-function (car form)))) | |
1169 | (subr-arity (symbol-function (car form)))))) | |
1c393159 | 1170 | (ncall (length (cdr form)))) |
ed62683d DL |
1171 | ;; Check many or unevalled from subr-arity. |
1172 | (if (and (cdr-safe sig) | |
1173 | (not (numberp (cdr sig)))) | |
1174 | (setcdr sig nil)) | |
1c393159 | 1175 | (if sig |
ccb3c8de | 1176 | (when (or (< ncall (car sig)) |
1c393159 | 1177 | (and (cdr sig) (> ncall (cdr sig)))) |
ccb3c8de CW |
1178 | (byte-compile-set-symbol-position (car form)) |
1179 | (byte-compile-warn | |
1180 | "%s called with %d argument%s, but %s %s" | |
1181 | (car form) ncall | |
1182 | (if (= 1 ncall) "" "s") | |
1183 | (if (< ncall (car sig)) | |
1184 | "requires" | |
1185 | "accepts only") | |
ba76e7fa | 1186 | (byte-compile-arglist-signature-string sig)))) |
6b61353c | 1187 | (byte-compile-format-warn form) |
ba76e7fa SM |
1188 | ;; Check to see if the function will be available at runtime |
1189 | ;; and/or remember its arity if it's unknown. | |
a7a7ddf1 | 1190 | (or (and (or def (fboundp (car form))) ; might be a subr or autoload. |
6b61353c | 1191 | (not (memq (car form) byte-compile-noruntime-functions))) |
ba76e7fa SM |
1192 | (eq (car form) byte-compile-current-form) ; ## this doesn't work |
1193 | ; with recursion. | |
1194 | ;; It's a currently-undefined function. | |
1195 | ;; Remember number of args in call. | |
1196 | (let ((cons (assq (car form) byte-compile-unresolved-functions)) | |
1197 | (n (length (cdr form)))) | |
1198 | (if cons | |
1199 | (or (memq n (cdr cons)) | |
1200 | (setcdr cons (cons n (cdr cons)))) | |
977b50fb SM |
1201 | (push (list (car form) n) |
1202 | byte-compile-unresolved-functions)))))) | |
1c393159 | 1203 | |
6b61353c KH |
1204 | (defun byte-compile-format-warn (form) |
1205 | "Warn if FORM is `format'-like with inconsistent args. | |
1206 | Applies if head of FORM is a symbol with non-nil property | |
1207 | `byte-compile-format-like' and first arg is a constant string. | |
1208 | Then check the number of format fields matches the number of | |
1209 | extra args." | |
1210 | (when (and (symbolp (car form)) | |
1211 | (stringp (nth 1 form)) | |
1212 | (get (car form) 'byte-compile-format-like)) | |
1213 | (let ((nfields (with-temp-buffer | |
1214 | (insert (nth 1 form)) | |
b8104a2b | 1215 | (goto-char (point-min)) |
6b61353c KH |
1216 | (let ((n 0)) |
1217 | (while (re-search-forward "%." nil t) | |
1218 | (unless (eq ?% (char-after (1+ (match-beginning 0)))) | |
1219 | (setq n (1+ n)))) | |
1220 | n))) | |
1221 | (nargs (- (length form) 2))) | |
1222 | (unless (= nargs nfields) | |
1223 | (byte-compile-warn | |
1224 | "`%s' called with %d args to fill %d format field(s)" (car form) | |
1225 | nargs nfields))))) | |
1226 | ||
1227 | (dolist (elt '(format message error)) | |
1228 | (put elt 'byte-compile-format-like t)) | |
1229 | ||
11efeb9b RS |
1230 | ;; Warn if a custom definition fails to specify :group. |
1231 | (defun byte-compile-nogroup-warn (form) | |
ab5111e3 SM |
1232 | (if (and (memq (car form) '(custom-declare-face custom-declare-variable)) |
1233 | byte-compile-current-group) | |
1234 | ;; The group will be provided implicitly. | |
1235 | nil | |
1236 | (let ((keyword-args (cdr (cdr (cdr (cdr form))))) | |
1237 | (name (cadr form))) | |
1238 | (or (not (eq (car-safe name) 'quote)) | |
3ab6a7ae SM |
1239 | (and (eq (car form) 'custom-declare-group) |
1240 | (equal name ''emacs)) | |
1241 | (plist-get keyword-args :group) | |
1242 | (not (and (consp name) (eq (car name) 'quote))) | |
1243 | (byte-compile-warn | |
1244 | "%s for `%s' fails to specify containing group" | |
1245 | (cdr (assq (car form) | |
ab5111e3 SM |
1246 | '((custom-declare-group . defgroup) |
1247 | (custom-declare-face . defface) | |
1248 | (custom-declare-variable . defcustom)))) | |
1249 | (cadr name))) | |
1250 | ;; Update the current group, if needed. | |
1251 | (if (and byte-compile-current-file ;Only when byte-compiling a whole file. | |
1252 | (eq (car form) 'custom-declare-group) | |
1253 | (eq (car-safe name) 'quote)) | |
1254 | (setq byte-compile-current-group (cadr name)))))) | |
11efeb9b | 1255 | |
52799cb8 RS |
1256 | ;; Warn if the function or macro is being redefined with a different |
1257 | ;; number of arguments. | |
1c393159 | 1258 | (defun byte-compile-arglist-warn (form macrop) |
1c393159 | 1259 | (let ((old (byte-compile-fdefinition (nth 1 form) macrop))) |
a7a7ddf1 | 1260 | (if (and old (not (eq old t))) |
416d3588 GM |
1261 | (progn |
1262 | (and (eq 'macro (car-safe old)) | |
1263 | (eq 'lambda (car-safe (cdr-safe old))) | |
1264 | (setq old (cdr old))) | |
1265 | (let ((sig1 (byte-compile-arglist-signature | |
1266 | (if (eq 'lambda (car-safe old)) | |
1267 | (nth 1 old) | |
1268 | (if (byte-code-function-p old) | |
1269 | (aref old 0) | |
1270 | '(&rest def))))) | |
1271 | (sig2 (byte-compile-arglist-signature (nth 2 form)))) | |
1272 | (unless (byte-compile-arglist-signatures-congruent-p sig1 sig2) | |
1273 | (byte-compile-set-symbol-position (nth 1 form)) | |
1274 | (byte-compile-warn | |
1275 | "%s %s used to take %s %s, now takes %s" | |
1276 | (if (eq (car form) 'defun) "function" "macro") | |
1277 | (nth 1 form) | |
1278 | (byte-compile-arglist-signature-string sig1) | |
1279 | (if (equal sig1 '(1 . 1)) "argument" "arguments") | |
1280 | (byte-compile-arglist-signature-string sig2))))) | |
1c393159 JB |
1281 | ;; This is the first definition. See if previous calls are compatible. |
1282 | (let ((calls (assq (nth 1 form) byte-compile-unresolved-functions)) | |
1283 | nums sig min max) | |
1284 | (if calls | |
1285 | (progn | |
1286 | (setq sig (byte-compile-arglist-signature (nth 2 form)) | |
1287 | nums (sort (copy-sequence (cdr calls)) (function <)) | |
1288 | min (car nums) | |
1289 | max (car (nreverse nums))) | |
ccb3c8de | 1290 | (when (or (< min (car sig)) |
1c393159 | 1291 | (and (cdr sig) (> max (cdr sig)))) |
ccb3c8de CW |
1292 | (byte-compile-set-symbol-position (nth 1 form)) |
1293 | (byte-compile-warn | |
1294 | "%s being defined to take %s%s, but was previously called with %s" | |
1295 | (nth 1 form) | |
1296 | (byte-compile-arglist-signature-string sig) | |
1297 | (if (equal sig '(1 . 1)) " arg" " args") | |
1298 | (byte-compile-arglist-signature-string (cons min max)))) | |
1f006824 | 1299 | |
1c393159 JB |
1300 | (setq byte-compile-unresolved-functions |
1301 | (delq calls byte-compile-unresolved-functions))))) | |
1302 | ))) | |
1303 | ||
95c997fa RS |
1304 | (defvar byte-compile-cl-functions nil |
1305 | "List of functions defined in CL.") | |
1306 | ||
3f12e5bd GM |
1307 | ;; Can't just add this to cl-load-hook, because that runs just before |
1308 | ;; the forms from cl.el get added to load-history. | |
95c997fa RS |
1309 | (defun byte-compile-find-cl-functions () |
1310 | (unless byte-compile-cl-functions | |
1311 | (dolist (elt load-history) | |
3f12e5bd GM |
1312 | (and (byte-compile-cl-file-p (car elt)) |
1313 | (dolist (e (cdr elt)) | |
1314 | ;; Includes the cl-foo functions that cl autoloads. | |
1315 | (when (memq (car-safe e) '(autoload defun)) | |
1316 | (push (cdr e) byte-compile-cl-functions))))))) | |
95c997fa | 1317 | |
4795d1c7 RS |
1318 | (defun byte-compile-cl-warn (form) |
1319 | "Warn if FORM is a call of a function from the CL package." | |
95c997fa RS |
1320 | (let ((func (car-safe form))) |
1321 | (if (and byte-compile-cl-functions | |
1322 | (memq func byte-compile-cl-functions) | |
6b61353c | 1323 | ;; Aliases which won't have been expanded at this point. |
4795d1c7 RS |
1324 | ;; These aren't all aliases of subrs, so not trivial to |
1325 | ;; avoid hardwiring the list. | |
1326 | (not (memq func | |
9cb9a7bc RS |
1327 | '(cl-block-wrapper cl-block-throw |
1328 | multiple-value-call nth-value | |
95c997fa | 1329 | copy-seq first second rest endp cl-member |
d1a57439 RS |
1330 | ;; These are included in generated code |
1331 | ;; that can't be called except at compile time | |
1332 | ;; or unless cl is loaded anyway. | |
1333 | cl-defsubst-expand cl-struct-setf-expander | |
8f876842 RS |
1334 | ;; These would sometimes be warned about |
1335 | ;; but such warnings are never useful, | |
1336 | ;; so don't warn about them. | |
118861df DL |
1337 | macroexpand cl-macroexpand-all |
1338 | cl-compiling-file))) | |
1339 | ;; Avoid warnings for things which are safe because they | |
1340 | ;; have suitable compiler macros, but those aren't | |
1341 | ;; expanded at this stage. There should probably be more | |
1342 | ;; here than caaar and friends. | |
1343 | (not (and (eq (get func 'byte-compile) | |
1344 | 'cl-byte-compile-compiler-macro) | |
6640c250 | 1345 | (string-match "\\`c[ad]+r\\'" (symbol-name func))))) |
7a16788b | 1346 | (byte-compile-warn "function `%s' from cl package called at runtime" |
4795d1c7 RS |
1347 | func))) |
1348 | form) | |
1349 | ||
a586093f | 1350 | (defun byte-compile-print-syms (str1 strn syms) |
ccb3c8de CW |
1351 | (when syms |
1352 | (byte-compile-set-symbol-position (car syms) t)) | |
b8175fe6 GM |
1353 | (cond ((and (cdr syms) (not noninteractive)) |
1354 | (let* ((str strn) | |
1355 | (L (length str)) | |
1356 | s) | |
1357 | (while syms | |
1358 | (setq s (symbol-name (pop syms)) | |
1359 | L (+ L (length s) 2)) | |
1360 | (if (< L (1- fill-column)) | |
1361 | (setq str (concat str " " s (and syms ","))) | |
1362 | (setq str (concat str "\n " s (and syms ",")) | |
1363 | L (+ (length s) 4)))) | |
1364 | (byte-compile-warn "%s" str))) | |
1365 | ((cdr syms) | |
1f006824 | 1366 | (byte-compile-warn "%s %s" |
b8175fe6 GM |
1367 | strn |
1368 | (mapconcat #'symbol-name syms ", "))) | |
1369 | ||
1370 | (syms | |
1371 | (byte-compile-warn str1 (car syms))))) | |
a586093f | 1372 | |
1f006824 | 1373 | ;; If we have compiled any calls to functions which are not known to be |
52799cb8 RS |
1374 | ;; defined, issue a warning enumerating them. |
1375 | ;; `unresolved' in the list `byte-compile-warnings' disables this. | |
1c393159 | 1376 | (defun byte-compile-warn-about-unresolved-functions () |
cf637a34 | 1377 | (when (byte-compile-warning-enabled-p 'unresolved) |
b8175fe6 | 1378 | (let ((byte-compile-current-form :end) |
a586093f SM |
1379 | (noruntime nil) |
1380 | (unresolved nil)) | |
1381 | ;; Separate the functions that will not be available at runtime | |
1382 | ;; from the truly unresolved ones. | |
1383 | (dolist (f byte-compile-unresolved-functions) | |
1384 | (setq f (car f)) | |
1385 | (if (fboundp f) (push f noruntime) (push f unresolved))) | |
1386 | ;; Complain about the no-run-time functions | |
1387 | (byte-compile-print-syms | |
b8175fe6 GM |
1388 | "the function `%s' might not be defined at runtime." |
1389 | "the following functions might not be defined at runtime:" | |
a586093f SM |
1390 | noruntime) |
1391 | ;; Complain about the unresolved functions | |
1392 | (byte-compile-print-syms | |
b8175fe6 GM |
1393 | "the function `%s' is not known to be defined." |
1394 | "the following functions are not known to be defined:" | |
a586093f | 1395 | unresolved))) |
1c393159 JB |
1396 | nil) |
1397 | ||
1398 | \f | |
582a857c | 1399 | (defsubst byte-compile-const-symbol-p (symbol &optional any-value) |
6c2161c4 | 1400 | "Non-nil if SYMBOL is constant. |
582a857c | 1401 | If ANY-VALUE is nil, only return non-nil if the value of the symbol is the |
6c2161c4 | 1402 | symbol itself." |
1639b803 | 1403 | (or (memq symbol '(nil t)) |
6c2161c4 | 1404 | (keywordp symbol) |
d988dbf6 SM |
1405 | (if any-value |
1406 | (or (memq symbol byte-compile-const-variables) | |
1407 | ;; FIXME: We should provide a less intrusive way to find out | |
1408 | ;; is a variable is "constant". | |
1409 | (and (boundp symbol) | |
1410 | (condition-case nil | |
1411 | (progn (set symbol (symbol-value symbol)) nil) | |
1412 | (setting-constant t))))))) | |
1639b803 | 1413 | |
1c393159 | 1414 | (defmacro byte-compile-constp (form) |
c5091f25 | 1415 | "Return non-nil if FORM is a constant." |
1639b803 DL |
1416 | `(cond ((consp ,form) (eq (car ,form) 'quote)) |
1417 | ((not (symbolp ,form))) | |
1418 | ((byte-compile-const-symbol-p ,form)))) | |
1c393159 JB |
1419 | |
1420 | (defmacro byte-compile-close-variables (&rest body) | |
1421 | (cons 'let | |
1422 | (cons '(;; | |
1423 | ;; Close over these variables to encapsulate the | |
1424 | ;; compilation state | |
1425 | ;; | |
1426 | (byte-compile-macro-environment | |
1427 | ;; Copy it because the compiler may patch into the | |
1428 | ;; macroenvironment. | |
1429 | (copy-alist byte-compile-initial-macro-environment)) | |
1430 | (byte-compile-function-environment nil) | |
1431 | (byte-compile-bound-variables nil) | |
6c2161c4 | 1432 | (byte-compile-const-variables nil) |
1c393159 JB |
1433 | (byte-compile-free-references nil) |
1434 | (byte-compile-free-assignments nil) | |
1435 | ;; | |
1436 | ;; Close over these variables so that `byte-compiler-options' | |
1437 | ;; can change them on a per-file basis. | |
1438 | ;; | |
1439 | (byte-compile-verbose byte-compile-verbose) | |
1440 | (byte-optimize byte-optimize) | |
d82e848c RS |
1441 | (byte-compile-dynamic byte-compile-dynamic) |
1442 | (byte-compile-dynamic-docstrings | |
1443 | byte-compile-dynamic-docstrings) | |
52799cb8 RS |
1444 | ;; (byte-compile-generate-emacs19-bytecodes |
1445 | ;; byte-compile-generate-emacs19-bytecodes) | |
cf637a34 | 1446 | (byte-compile-warnings byte-compile-warnings) |
1c393159 JB |
1447 | ) |
1448 | body))) | |
1449 | ||
1c393159 | 1450 | (defmacro displaying-byte-compile-warnings (&rest body) |
4390021b RS |
1451 | `(let* ((--displaying-byte-compile-warnings-fn (lambda () ,@body)) |
1452 | (warning-series-started | |
1453 | (and (markerp warning-series) | |
1454 | (eq (marker-buffer warning-series) | |
1455 | (get-buffer "*Compile-Log*"))))) | |
95c997fa | 1456 | (byte-compile-find-cl-functions) |
4390021b RS |
1457 | (if (or (eq warning-series 'byte-compile-warning-series) |
1458 | warning-series-started) | |
1459 | ;; warning-series does come from compilation, | |
1460 | ;; so don't bind it, but maybe do set it. | |
1461 | (let (tem) | |
1462 | ;; Log the file name. Record position of that text. | |
1463 | (setq tem (byte-compile-log-file)) | |
1464 | (unless warning-series-started | |
1465 | (setq warning-series (or tem 'byte-compile-warning-series))) | |
1466 | (if byte-compile-debug | |
1467 | (funcall --displaying-byte-compile-warnings-fn) | |
1468 | (condition-case error-info | |
1469 | (funcall --displaying-byte-compile-warnings-fn) | |
1470 | (error (byte-compile-report-error error-info))))) | |
1471 | ;; warning-series does not come from compilation, so bind it. | |
1472 | (let ((warning-series | |
1473 | ;; Log the file name. Record position of that text. | |
1474 | (or (byte-compile-log-file) 'byte-compile-warning-series))) | |
1475 | (if byte-compile-debug | |
22788fb8 | 1476 | (funcall --displaying-byte-compile-warnings-fn) |
4390021b RS |
1477 | (condition-case error-info |
1478 | (funcall --displaying-byte-compile-warnings-fn) | |
1479 | (error (byte-compile-report-error error-info)))))))) | |
1c393159 | 1480 | \f |
fd5285f3 | 1481 | ;;;###autoload |
9742dbc0 RS |
1482 | (defun byte-force-recompile (directory) |
1483 | "Recompile every `.el' file in DIRECTORY that already has a `.elc' file. | |
1484 | Files in subdirectories of DIRECTORY are processed also." | |
c0f43df5 | 1485 | (interactive "DByte force recompile (directory): ") |
9742dbc0 RS |
1486 | (byte-recompile-directory directory nil t)) |
1487 | ||
1c3b663f GM |
1488 | ;; The `bytecomp-' prefix is applied to all local variables with |
1489 | ;; otherwise common names in this and similar functions for the sake | |
1490 | ;; of the boundp test in byte-compile-variable-ref. | |
1491 | ;; http://lists.gnu.org/archive/html/emacs-devel/2008-01/msg00237.html | |
1492 | ;; http://lists.gnu.org/archive/html/bug-gnu-emacs/2008-02/msg00134.html | |
8480fc7c | 1493 | ;; Note that similar considerations apply to command-line-1 in startup.el. |
9742dbc0 | 1494 | ;;;###autoload |
1c3b663f GM |
1495 | (defun byte-recompile-directory (bytecomp-directory &optional bytecomp-arg |
1496 | bytecomp-force) | |
1497 | "Recompile every `.el' file in BYTECOMP-DIRECTORY that needs recompilation. | |
2b9c3b12 | 1498 | This happens when a `.elc' file exists but is older than the `.el' file. |
1c3b663f | 1499 | Files in subdirectories of BYTECOMP-DIRECTORY are processed also. |
1c393159 | 1500 | |
c4f2cabd | 1501 | If the `.elc' file does not exist, normally this function *does not* |
1c3b663f GM |
1502 | compile the corresponding `.el' file. However, if the prefix argument |
1503 | BYTECOMP-ARG is 0, that means do compile all those files. A nonzero | |
1504 | BYTECOMP-ARG means ask the user, for each such `.el' file, whether to | |
1505 | compile it. A nonzero BYTECOMP-ARG also means ask about each subdirectory | |
1506 | before scanning it. | |
1507 | ||
1508 | If the third argument BYTECOMP-FORCE is non-nil, recompile every `.el' file | |
1509 | that already has a `.elc' file." | |
1c393159 | 1510 | (interactive "DByte recompile directory: \nP") |
1c3b663f GM |
1511 | (if bytecomp-arg |
1512 | (setq bytecomp-arg (prefix-numeric-value bytecomp-arg))) | |
e27c3564 JB |
1513 | (if noninteractive |
1514 | nil | |
1515 | (save-some-buffers) | |
ba901388 | 1516 | (force-mode-line-update)) |
008e2c2a | 1517 | (with-current-buffer (get-buffer-create "*Compile-Log*") |
1c3b663f | 1518 | (setq default-directory (expand-file-name bytecomp-directory)) |
977f31f8 RS |
1519 | ;; compilation-mode copies value of default-directory. |
1520 | (unless (eq major-mode 'compilation-mode) | |
1521 | (compilation-mode)) | |
1c3b663f | 1522 | (let ((bytecomp-directories (list default-directory)) |
4eb4926c RS |
1523 | (default-directory default-directory) |
1524 | (skip-count 0) | |
1525 | (fail-count 0) | |
1526 | (file-count 0) | |
1527 | (dir-count 0) | |
1528 | last-dir) | |
1529 | (displaying-byte-compile-warnings | |
1c3b663f GM |
1530 | (while bytecomp-directories |
1531 | (setq bytecomp-directory (car bytecomp-directories)) | |
1532 | (message "Checking %s..." bytecomp-directory) | |
1533 | (let ((bytecomp-files (directory-files bytecomp-directory)) | |
1534 | bytecomp-source bytecomp-dest) | |
1535 | (dolist (bytecomp-file bytecomp-files) | |
1536 | (setq bytecomp-source | |
1537 | (expand-file-name bytecomp-file bytecomp-directory)) | |
1538 | (if (and (not (member bytecomp-file '("RCS" "CVS"))) | |
1539 | (not (eq ?\. (aref bytecomp-file 0))) | |
1540 | (file-directory-p bytecomp-source) | |
1541 | (not (file-symlink-p bytecomp-source))) | |
4eb4926c | 1542 | ;; This file is a subdirectory. Handle them differently. |
1c3b663f GM |
1543 | (when (or (null bytecomp-arg) |
1544 | (eq 0 bytecomp-arg) | |
1545 | (y-or-n-p (concat "Check " bytecomp-source "? "))) | |
1546 | (setq bytecomp-directories | |
1547 | (nconc bytecomp-directories (list bytecomp-source)))) | |
4eb4926c | 1548 | ;; It is an ordinary file. Decide whether to compile it. |
1c3b663f GM |
1549 | (if (and (string-match emacs-lisp-file-regexp bytecomp-source) |
1550 | (file-readable-p bytecomp-source) | |
1551 | (not (auto-save-file-name-p bytecomp-source)) | |
13639aab GM |
1552 | (not (string-equal dir-locals-file |
1553 | (file-name-nondirectory | |
1554 | bytecomp-source))) | |
1c3b663f GM |
1555 | (setq bytecomp-dest |
1556 | (byte-compile-dest-file bytecomp-source)) | |
1557 | (if (file-exists-p bytecomp-dest) | |
4eb4926c | 1558 | ;; File was already compiled. |
1c3b663f GM |
1559 | (or bytecomp-force |
1560 | (file-newer-than-file-p bytecomp-source | |
1561 | bytecomp-dest)) | |
4eb4926c | 1562 | ;; No compiled file exists yet. |
1c3b663f GM |
1563 | (and bytecomp-arg |
1564 | (or (eq 0 bytecomp-arg) | |
1565 | (y-or-n-p (concat "Compile " | |
1566 | bytecomp-source "? ")))))) | |
4eb4926c | 1567 | (progn (if (and noninteractive (not byte-compile-verbose)) |
1c3b663f GM |
1568 | (message "Compiling %s..." bytecomp-source)) |
1569 | (let ((bytecomp-res (byte-compile-file | |
1570 | bytecomp-source))) | |
1571 | (cond ((eq bytecomp-res 'no-byte-compile) | |
4eb4926c | 1572 | (setq skip-count (1+ skip-count))) |
1c3b663f | 1573 | ((eq bytecomp-res t) |
4eb4926c | 1574 | (setq file-count (1+ file-count))) |
1c3b663f | 1575 | ((eq bytecomp-res nil) |
4eb4926c RS |
1576 | (setq fail-count (1+ fail-count))))) |
1577 | (or noninteractive | |
1c3b663f GM |
1578 | (message "Checking %s..." bytecomp-directory)) |
1579 | (if (not (eq last-dir bytecomp-directory)) | |
1580 | (setq last-dir bytecomp-directory | |
4eb4926c RS |
1581 | dir-count (1+ dir-count))) |
1582 | ))))) | |
1c3b663f | 1583 | (setq bytecomp-directories (cdr bytecomp-directories)))) |
4eb4926c RS |
1584 | (message "Done (Total of %d file%s compiled%s%s%s)" |
1585 | file-count (if (= file-count 1) "" "s") | |
1586 | (if (> fail-count 0) (format ", %d failed" fail-count) "") | |
1587 | (if (> skip-count 0) (format ", %d skipped" skip-count) "") | |
1c3b663f GM |
1588 | (if (> dir-count 1) |
1589 | (format " in %d directories" dir-count) ""))))) | |
1c393159 | 1590 | |
fef3407e | 1591 | (defvar no-byte-compile nil |
2b9c3b12 | 1592 | "Non-nil to prevent byte-compiling of Emacs Lisp code. |
fef3407e SM |
1593 | This is normally set in local file variables at the end of the elisp file: |
1594 | ||
1595 | ;; Local Variables:\n;; no-byte-compile: t\n;; End: ") | |
631c8020 | 1596 | ;;;###autoload(put 'no-byte-compile 'safe-local-variable 'booleanp) |
fef3407e | 1597 | |
fd5285f3 | 1598 | ;;;###autoload |
1c3b663f GM |
1599 | (defun byte-compile-file (bytecomp-filename &optional load) |
1600 | "Compile a file of Lisp code named BYTECOMP-FILENAME into a file of byte code. | |
1601 | The output file's name is generated by passing BYTECOMP-FILENAME to the | |
f279aaab | 1602 | function `byte-compile-dest-file' (which see). |
3614fc84 | 1603 | With prefix arg (noninteractively: 2nd arg), LOAD the file after compiling. |
d90a41e8 | 1604 | The value is non-nil if there were no errors, nil if errors." |
1c393159 JB |
1605 | ;; (interactive "fByte compile file: \nP") |
1606 | (interactive | |
1c3b663f GM |
1607 | (let ((bytecomp-file buffer-file-name) |
1608 | (bytecomp-file-name nil) | |
1609 | (bytecomp-file-dir nil)) | |
1610 | (and bytecomp-file | |
1c393159 JB |
1611 | (eq (cdr (assq 'major-mode (buffer-local-variables))) |
1612 | 'emacs-lisp-mode) | |
1c3b663f GM |
1613 | (setq bytecomp-file-name (file-name-nondirectory bytecomp-file) |
1614 | bytecomp-file-dir (file-name-directory bytecomp-file))) | |
52799cb8 RS |
1615 | (list (read-file-name (if current-prefix-arg |
1616 | "Byte compile and load file: " | |
1617 | "Byte compile file: ") | |
1c3b663f | 1618 | bytecomp-file-dir bytecomp-file-name nil) |
fd5285f3 | 1619 | current-prefix-arg))) |
1c393159 | 1620 | ;; Expand now so we get the current buffer's defaults |
1c3b663f | 1621 | (setq bytecomp-filename (expand-file-name bytecomp-filename)) |
1c393159 JB |
1622 | |
1623 | ;; If we're compiling a file that's in a buffer and is modified, offer | |
1624 | ;; to save it first. | |
1625 | (or noninteractive | |
1c3b663f | 1626 | (let ((b (get-file-buffer (expand-file-name bytecomp-filename)))) |
1c393159 | 1627 | (if (and b (buffer-modified-p b) |
a586093f | 1628 | (y-or-n-p (format "Save buffer %s first? " (buffer-name b)))) |
008e2c2a | 1629 | (with-current-buffer b (save-buffer))))) |
1c393159 | 1630 | |
4390021b RS |
1631 | ;; Force logging of the file name for each file compiled. |
1632 | (setq byte-compile-last-logged-file nil) | |
1c3b663f | 1633 | (let ((byte-compile-current-file bytecomp-filename) |
ab5111e3 | 1634 | (byte-compile-current-group nil) |
dc14ae36 | 1635 | (set-auto-coding-for-load t) |
d82e848c RS |
1636 | target-file input-buffer output-buffer |
1637 | byte-compile-dest-file) | |
1c3b663f | 1638 | (setq target-file (byte-compile-dest-file bytecomp-filename)) |
d82e848c | 1639 | (setq byte-compile-dest-file target-file) |
ea1cb2bd | 1640 | (with-current-buffer |
008e2c2a | 1641 | (setq input-buffer (get-buffer-create " *Compiler Input*")) |
1c393159 | 1642 | (erase-buffer) |
7a28e3b1 | 1643 | (setq buffer-file-coding-system nil) |
746dd298 | 1644 | ;; Always compile an Emacs Lisp file as multibyte |
b92dd692 | 1645 | ;; unless the file itself forces unibyte with -*-coding: raw-text;-*- |
746dd298 | 1646 | (set-buffer-multibyte t) |
1c3b663f | 1647 | (insert-file-contents bytecomp-filename) |
844da0ff KH |
1648 | ;; Mimic the way after-insert-file-set-coding can make the |
1649 | ;; buffer unibyte when visiting this file. | |
7a28e3b1 RS |
1650 | (when (or (eq last-coding-system-used 'no-conversion) |
1651 | (eq (coding-system-type last-coding-system-used) 5)) | |
1652 | ;; For coding systems no-conversion and raw-text..., | |
1653 | ;; edit the buffer as unibyte. | |
1654 | (set-buffer-multibyte nil)) | |
1c393159 JB |
1655 | ;; Run hooks including the uncompression hook. |
1656 | ;; If they change the file name, then change it for the output also. | |
14acf2f5 SM |
1657 | (letf ((buffer-file-name bytecomp-filename) |
1658 | ((default-value 'major-mode) 'emacs-lisp-mode) | |
1659 | ;; Ignore unsafe local variables. | |
1660 | ;; We only care about a few of them for our purposes. | |
1661 | (enable-local-variables :safe) | |
1662 | (enable-local-eval nil)) | |
aa9addfa RS |
1663 | ;; Arg of t means don't alter enable-local-variables. |
1664 | (normal-mode t) | |
1c3b663f | 1665 | (setq bytecomp-filename buffer-file-name)) |
cd891e68 | 1666 | ;; Set the default directory, in case an eval-when-compile uses it. |
1c3b663f | 1667 | (setq default-directory (file-name-directory bytecomp-filename))) |
3614fc84 GM |
1668 | ;; Check if the file's local variables explicitly specify not to |
1669 | ;; compile this file. | |
fef3407e | 1670 | (if (with-current-buffer input-buffer no-byte-compile) |
3614fc84 | 1671 | (progn |
6b61353c | 1672 | ;; (message "%s not compiled because of `no-byte-compile: %s'" |
1c3b663f | 1673 | ;; (file-relative-name bytecomp-filename) |
6b61353c KH |
1674 | ;; (with-current-buffer input-buffer no-byte-compile)) |
1675 | (when (file-exists-p target-file) | |
1676 | (message "%s deleted because of `no-byte-compile: %s'" | |
1677 | (file-relative-name target-file) | |
1678 | (buffer-local-value 'no-byte-compile input-buffer)) | |
1679 | (condition-case nil (delete-file target-file) (error nil))) | |
82345a9a | 1680 | ;; We successfully didn't compile this file. |
d90a41e8 | 1681 | 'no-byte-compile) |
ccb3c8de | 1682 | (when byte-compile-verbose |
1c3b663f | 1683 | (message "Compiling %s..." bytecomp-filename)) |
82345a9a SM |
1684 | (setq byte-compiler-error-flag nil) |
1685 | ;; It is important that input-buffer not be current at this call, | |
1686 | ;; so that the value of point set in input-buffer | |
1687 | ;; within byte-compile-from-buffer lingers in that buffer. | |
4f6d5bf0 SM |
1688 | (setq output-buffer |
1689 | (save-current-buffer | |
1c3b663f | 1690 | (byte-compile-from-buffer input-buffer bytecomp-filename))) |
82345a9a SM |
1691 | (if byte-compiler-error-flag |
1692 | nil | |
ccb3c8de | 1693 | (when byte-compile-verbose |
1c3b663f | 1694 | (message "Compiling %s...done" bytecomp-filename)) |
82345a9a SM |
1695 | (kill-buffer input-buffer) |
1696 | (with-current-buffer output-buffer | |
1697 | (goto-char (point-max)) | |
1698 | (insert "\n") ; aaah, unix. | |
82345a9a SM |
1699 | (if (file-writable-p target-file) |
1700 | ;; We must disable any code conversion here. | |
9c524fcb GM |
1701 | (let* ((coding-system-for-write 'no-conversion) |
1702 | ;; Write to a tempfile so that if another Emacs | |
1703 | ;; process is trying to load target-file (eg in a | |
1704 | ;; parallel bootstrap), it does not risk getting a | |
1705 | ;; half-finished file. (Bug#4196) | |
1706 | (tempfile (make-temp-name target-file)) | |
1707 | (kill-emacs-hook | |
1708 | (cons (lambda () (ignore-errors (delete-file tempfile))) | |
1709 | kill-emacs-hook))) | |
82345a9a SM |
1710 | (if (memq system-type '(ms-dos 'windows-nt)) |
1711 | (setq buffer-file-type t)) | |
7eb662be | 1712 | (write-region (point-min) (point-max) tempfile nil 1) |
0f34ae28 GM |
1713 | ;; This has the intentional side effect that any |
1714 | ;; hard-links to target-file continue to | |
1715 | ;; point to the old file (this makes it possible | |
1716 | ;; for installed files to share disk space with | |
1717 | ;; the build tree, without causing problems when | |
1718 | ;; emacs-lisp files in the build tree are | |
1719 | ;; recompiled). Previously this was accomplished by | |
1720 | ;; deleting target-file before writing it. | |
7eb662be GM |
1721 | (rename-file tempfile target-file t) |
1722 | (message "Wrote %s" target-file)) | |
82345a9a SM |
1723 | ;; This is just to give a better error message than write-region |
1724 | (signal 'file-error | |
1725 | (list "Opening output file" | |
1726 | (if (file-exists-p target-file) | |
1727 | "cannot overwrite file" | |
1728 | "directory not writable or nonexistent") | |
7c2fb837 | 1729 | target-file))) |
82345a9a SM |
1730 | (kill-buffer (current-buffer))) |
1731 | (if (and byte-compile-generate-call-tree | |
1732 | (or (eq t byte-compile-generate-call-tree) | |
1c3b663f GM |
1733 | (y-or-n-p (format "Report call tree for %s? " |
1734 | bytecomp-filename)))) | |
82345a9a | 1735 | (save-excursion |
1c3b663f | 1736 | (display-call-tree bytecomp-filename))) |
82345a9a SM |
1737 | (if load |
1738 | (load target-file)) | |
1739 | t)))) | |
1c393159 | 1740 | |
1c393159 | 1741 | ;;; compiling a single function |
fd5285f3 | 1742 | ;;;###autoload |
52799cb8 | 1743 | (defun compile-defun (&optional arg) |
1c393159 | 1744 | "Compile and evaluate the current top-level form. |
6b61353c | 1745 | Print the result in the echo area. |
2b9c3b12 | 1746 | With argument ARG, insert value in current buffer after the form." |
1c393159 JB |
1747 | (interactive "P") |
1748 | (save-excursion | |
1749 | (end-of-defun) | |
1750 | (beginning-of-defun) | |
1751 | (let* ((byte-compile-current-file nil) | |
ccb3c8de CW |
1752 | (byte-compile-current-buffer (current-buffer)) |
1753 | (byte-compile-read-position (point)) | |
1754 | (byte-compile-last-position byte-compile-read-position) | |
1c393159 | 1755 | (byte-compile-last-warned-form 'nothing) |
ccb3c8de | 1756 | (value (eval |
9cb9a7bc | 1757 | (let ((read-with-symbol-positions (current-buffer)) |
ccb3c8de CW |
1758 | (read-symbol-positions-list nil)) |
1759 | (displaying-byte-compile-warnings | |
1760 | (byte-compile-sexp (read (current-buffer)))))))) | |
1c393159 JB |
1761 | (cond (arg |
1762 | (message "Compiling from buffer... done.") | |
1763 | (prin1 value (current-buffer)) | |
1764 | (insert "\n")) | |
1765 | ((message "%s" (prin1-to-string value))))))) | |
1766 | ||
1767 | ||
a2b3fdbf | 1768 | (defun byte-compile-from-buffer (bytecomp-inbuffer &optional bytecomp-filename) |
8a5dd086 | 1769 | ;; Filename is used for the loading-into-Emacs-18 error message. |
a2b3fdbf GM |
1770 | (let (bytecomp-outbuffer |
1771 | (byte-compile-current-buffer bytecomp-inbuffer) | |
ccb3c8de CW |
1772 | (byte-compile-read-position nil) |
1773 | (byte-compile-last-position nil) | |
d82e848c RS |
1774 | ;; Prevent truncation of flonums and lists as we read and print them |
1775 | (float-output-format nil) | |
1776 | (case-fold-search nil) | |
1777 | (print-length nil) | |
95e7d933 | 1778 | (print-level nil) |
74dfd056 RS |
1779 | ;; Prevent edebug from interfering when we compile |
1780 | ;; and put the output into a file. | |
ccb3c8de CW |
1781 | ;; (edebug-all-defs nil) |
1782 | ;; (edebug-all-forms nil) | |
d82e848c RS |
1783 | ;; Simulate entry to byte-compile-top-level |
1784 | (byte-compile-constants nil) | |
1785 | (byte-compile-variables nil) | |
1786 | (byte-compile-tag-number 0) | |
1787 | (byte-compile-depth 0) | |
1788 | (byte-compile-maxdepth 0) | |
1789 | (byte-compile-output nil) | |
ccb3c8de | 1790 | ;; This allows us to get the positions of symbols read; it's |
bf247b6e | 1791 | ;; new in Emacs 22.1. |
a2b3fdbf | 1792 | (read-with-symbol-positions bytecomp-inbuffer) |
ccb3c8de | 1793 | (read-symbol-positions-list nil) |
d82e848c | 1794 | ;; #### This is bound in b-c-close-variables. |
cf637a34 | 1795 | ;; (byte-compile-warnings byte-compile-warnings) |
d82e848c RS |
1796 | ) |
1797 | (byte-compile-close-variables | |
b8104a2b | 1798 | (with-current-buffer |
a2b3fdbf | 1799 | (setq bytecomp-outbuffer (get-buffer-create " *Compiler Output*")) |
08b59cd3 | 1800 | (set-buffer-multibyte t) |
d82e848c RS |
1801 | (erase-buffer) |
1802 | ;; (emacs-lisp-mode) | |
1803 | (setq case-fold-search nil) | |
986d19df CY |
1804 | ;; This is a kludge. Some operating systems (OS/2, DOS) need |
1805 | ;; to write files containing binary information specially. | |
d82e848c RS |
1806 | ;; Under most circumstances, such files will be in binary |
1807 | ;; overwrite mode, so those OS's use that flag to guess how | |
1808 | ;; they should write their data. Advise them that .elc files | |
986d19df CY |
1809 | ;; need to be written carefully. (There's no point running the |
1810 | ;; mode hook, so don't call `binary-overwrite-mode'.) | |
d82e848c RS |
1811 | (setq overwrite-mode 'overwrite-mode-binary)) |
1812 | (displaying-byte-compile-warnings | |
a2b3fdbf | 1813 | (with-current-buffer bytecomp-inbuffer |
775adc51 GM |
1814 | (and bytecomp-filename |
1815 | (byte-compile-insert-header bytecomp-filename bytecomp-outbuffer)) | |
b8104a2b | 1816 | (goto-char (point-min)) |
2cb63a7c AM |
1817 | ;; Should we always do this? When calling multiple files, it |
1818 | ;; would be useful to delay this warning until all have been | |
1819 | ;; compiled. A: Yes! b-c-u-f might contain dross from a | |
1820 | ;; previous byte-compile. | |
1821 | (setq byte-compile-unresolved-functions nil) | |
d82e848c RS |
1822 | |
1823 | ;; Compile the forms from the input buffer. | |
1824 | (while (progn | |
1825 | (while (progn (skip-chars-forward " \t\n\^l") | |
1826 | (looking-at ";")) | |
1827 | (forward-line 1)) | |
1828 | (not (eobp))) | |
ccb3c8de CW |
1829 | (setq byte-compile-read-position (point) |
1830 | byte-compile-last-position byte-compile-read-position) | |
36e65f70 | 1831 | (let* ((old-style-backquotes nil) |
a2b3fdbf | 1832 | (form (read bytecomp-inbuffer))) |
36e65f70 SM |
1833 | ;; Warn about the use of old-style backquotes. |
1834 | (when old-style-backquotes | |
1835 | (byte-compile-warn "!! The file uses old-style backquotes !! | |
1836 | This functionality has been obsolete for more than 10 years already | |
1837 | and will be removed soon. See (elisp)Backquote in the manual.")) | |
ccb3c8de | 1838 | (byte-compile-file-form form))) |
d82e848c RS |
1839 | ;; Compile pending forms at end of file. |
1840 | (byte-compile-flush-pending) | |
977f31f8 RS |
1841 | ;; Make warnings about unresolved functions |
1842 | ;; give the end of the file as their position. | |
1843 | (setq byte-compile-last-position (point-max)) | |
2cb63a7c | 1844 | (byte-compile-warn-about-unresolved-functions)) |
fb639443 RS |
1845 | ;; Fix up the header at the front of the output |
1846 | ;; if the buffer contains multibyte characters. | |
a2b3fdbf | 1847 | (and bytecomp-filename |
775adc51 GM |
1848 | (with-current-buffer bytecomp-outbuffer |
1849 | (byte-compile-fix-header bytecomp-filename))))) | |
a2b3fdbf | 1850 | bytecomp-outbuffer)) |
8a5dd086 | 1851 | |
775adc51 GM |
1852 | (defun byte-compile-fix-header (filename) |
1853 | "If the current buffer has any multibyte characters, insert a version test." | |
1854 | (when (< (point-max) (position-bytes (point-max))) | |
1855 | (goto-char (point-min)) | |
1856 | ;; Find the comment that describes the version condition. | |
1857 | (search-forward "\n;;; This file uses") | |
1858 | (narrow-to-region (line-beginning-position) (point-max)) | |
1859 | ;; Find the first line of ballast semicolons. | |
1860 | (search-forward ";;;;;;;;;;") | |
1861 | (beginning-of-line) | |
1862 | (narrow-to-region (point-min) (point)) | |
1863 | (let ((old-header-end (point)) | |
1864 | (minimum-version "23") | |
1865 | delta) | |
1866 | (delete-region (point-min) (point-max)) | |
1867 | (insert | |
1868 | ";;; This file contains utf-8 non-ASCII characters,\n" | |
1869 | ";;; and so cannot be loaded into Emacs 22 or earlier.\n" | |
1870 | ;; Have to check if emacs-version is bound so that this works | |
1871 | ;; in files loaded early in loadup.el. | |
1872 | "(and (boundp 'emacs-version)\n" | |
1873 | ;; If there is a name at the end of emacs-version, | |
1874 | ;; don't try to check the version number. | |
1875 | " (< (aref emacs-version (1- (length emacs-version))) ?A)\n" | |
1876 | (format " (string-lessp emacs-version \"%s\")\n" minimum-version) | |
1877 | " (error \"`" | |
1878 | ;; prin1-to-string is used to quote backslashes. | |
1879 | (substring (prin1-to-string (file-name-nondirectory filename)) | |
1880 | 1 -1) | |
1881 | (format "' was compiled for Emacs %s or later\"))\n\n" | |
1882 | minimum-version)) | |
1883 | ;; Now compensate for any change in size, to make sure all | |
1884 | ;; positions in the file remain valid. | |
1885 | (setq delta (- (point-max) old-header-end)) | |
1886 | (goto-char (point-max)) | |
1887 | (widen) | |
1888 | (delete-char delta)))) | |
1889 | ||
1890 | (defun byte-compile-insert-header (filename outbuffer) | |
1891 | "Insert a header at the start of OUTBUFFER. | |
1892 | Call from the source buffer." | |
1893 | (let ((dynamic-docstrings byte-compile-dynamic-docstrings) | |
1894 | (dynamic byte-compile-dynamic) | |
1895 | (optimize byte-optimize)) | |
1896 | (with-current-buffer outbuffer | |
a5832373 RS |
1897 | (goto-char (point-min)) |
1898 | ;; The magic number of .elc files is ";ELC", or 0x3B454C43. After | |
430d2ee2 | 1899 | ;; that is the file-format version number (18, 19, 20, or 23) as a |
a5832373 RS |
1900 | ;; byte, followed by some nulls. The primary motivation for doing |
1901 | ;; this is to get some binary characters up in the first line of | |
1902 | ;; the file so that `diff' will simply say "Binary files differ" | |
1903 | ;; instead of actually doing a diff of two .elc files. An extra | |
1904 | ;; benefit is that you can add this to /etc/magic: | |
a5832373 RS |
1905 | ;; 0 string ;ELC GNU Emacs Lisp compiled file, |
1906 | ;; >4 byte x version %d | |
775adc51 GM |
1907 | (insert |
1908 | ";ELC" 23 "\000\000\000\n" | |
1909 | ";;; Compiled by " | |
1910 | (or (and (boundp 'user-mail-address) user-mail-address) | |
1911 | (concat (user-login-name) "@" (system-name))) | |
1912 | " on " (current-time-string) "\n" | |
1913 | ";;; from file " filename "\n" | |
5fa9d1ec GM |
1914 | ";;; in Emacs version " emacs-version "\n" |
1915 | ";;; with" | |
775adc51 GM |
1916 | (cond |
1917 | ((eq optimize 'source) " source-level optimization only") | |
1918 | ((eq optimize 'byte) " byte-level optimization only") | |
1919 | (optimize " all optimizations") | |
1920 | (t "out optimization")) | |
1921 | ".\n" | |
1922 | (if dynamic ";;; Function definitions are lazy-loaded.\n" | |
1923 | "") | |
1924 | "\n;;; This file uses " | |
1925 | (if dynamic-docstrings | |
1926 | "dynamic docstrings, first added in Emacs 19.29" | |
1927 | "opcodes that do not exist in Emacs 18") | |
1928 | ".\n\n" | |
1929 | ;; Note that byte-compile-fix-header may change this. | |
1930 | ";;; This file does not contain utf-8 non-ASCII characters,\n" | |
1931 | ";;; and so can be loaded in Emacs versions earlier than 23.\n\n" | |
1932 | ;; Insert semicolons as ballast, so that byte-compile-fix-header | |
1933 | ;; can delete them so as to keep the buffer positions | |
1934 | ;; constant for the actual compiled code. | |
1935 | ";;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;\n" | |
1936 | ";;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;\n\n")))) | |
1c393159 | 1937 | |
a2b3fdbf GM |
1938 | ;; Dynamically bound in byte-compile-from-buffer. |
1939 | ;; NB also used in cl.el and cl-macs.el. | |
1940 | (defvar bytecomp-outbuffer) | |
1941 | ||
1c393159 JB |
1942 | (defun byte-compile-output-file-form (form) |
1943 | ;; writes the given form to the output buffer, being careful of docstrings | |
1e857121 | 1944 | ;; in defun, defmacro, defvar, defvaralias, defconst, autoload and |
36b7e523 | 1945 | ;; custom-declare-variable because make-docfile is so amazingly stupid. |
c36881cf ER |
1946 | ;; defalias calls are output directly by byte-compile-file-form-defmumble; |
1947 | ;; it does not pay to first build the defalias in defmumble and then parse | |
1948 | ;; it here. | |
f6195dfb | 1949 | (if (and (memq (car-safe form) '(defun defmacro defvar defvaralias defconst autoload |
36b7e523 | 1950 | custom-declare-variable)) |
1c393159 | 1951 | (stringp (nth 3 form))) |
d82e848c | 1952 | (byte-compile-output-docform nil nil '("\n(" 3 ")") form nil |
36b7e523 | 1953 | (memq (car form) |
1e857121 YM |
1954 | '(defvaralias autoload |
1955 | custom-declare-variable))) | |
1c393159 | 1956 | (let ((print-escape-newlines t) |
37c29340 KH |
1957 | (print-length nil) |
1958 | (print-level nil) | |
77308fd7 | 1959 | (print-quoted t) |
5e51de79 | 1960 | (print-gensym t) |
0e66b003 KH |
1961 | (print-circle ; handle circular data structures |
1962 | (not byte-compile-disable-print-circle))) | |
a2b3fdbf GM |
1963 | (princ "\n" bytecomp-outbuffer) |
1964 | (prin1 form bytecomp-outbuffer) | |
1c393159 JB |
1965 | nil))) |
1966 | ||
6c2161c4 SM |
1967 | (defvar print-gensym-alist) ;Used before print-circle existed. |
1968 | ||
d82e848c | 1969 | (defun byte-compile-output-docform (preface name info form specindex quoted) |
dac6f673 RS |
1970 | "Print a form with a doc string. INFO is (prefix doc-index postfix). |
1971 | If PREFACE and NAME are non-nil, print them too, | |
1972 | before INFO and the FORM but after the doc string itself. | |
1973 | If SPECINDEX is non-nil, it is the index in FORM | |
1974 | of the function bytecode string. In that case, | |
2b9c3b12 JB |
1975 | we output that argument and the following argument |
1976 | \(the constants vector) together, for lazy loading. | |
dac6f673 RS |
1977 | QUOTED says that we have to put a quote before the |
1978 | list that represents a doc string reference. | |
1e857121 | 1979 | `defvaralias', `autoload' and `custom-declare-variable' need that." |
dac6f673 RS |
1980 | ;; We need to examine byte-compile-dynamic-docstrings |
1981 | ;; in the input buffer (now current), not in the output buffer. | |
1982 | (let ((dynamic-docstrings byte-compile-dynamic-docstrings)) | |
a2b3fdbf | 1983 | (with-current-buffer bytecomp-outbuffer |
9ec5dfe6 SM |
1984 | (let (position) |
1985 | ||
1986 | ;; Insert the doc string, and make it a comment with #@LENGTH. | |
1987 | (and (>= (nth 1 info) 0) | |
1988 | dynamic-docstrings | |
9ec5dfe6 SM |
1989 | (progn |
1990 | ;; Make the doc string start at beginning of line | |
1991 | ;; for make-docfile's sake. | |
1992 | (insert "\n") | |
1993 | (setq position | |
1994 | (byte-compile-output-as-comment | |
1995 | (nth (nth 1 info) form) nil)) | |
1996 | (setq position (- (position-bytes position) (point-min) -1)) | |
1997 | ;; If the doc string starts with * (a user variable), | |
1998 | ;; negate POSITION. | |
1999 | (if (and (stringp (nth (nth 1 info) form)) | |
2000 | (> (length (nth (nth 1 info) form)) 0) | |
2001 | (eq (aref (nth (nth 1 info) form) 0) ?*)) | |
2002 | (setq position (- position))))) | |
2003 | ||
2004 | (if preface | |
2005 | (progn | |
2006 | (insert preface) | |
a2b3fdbf | 2007 | (prin1 name bytecomp-outbuffer))) |
9ec5dfe6 SM |
2008 | (insert (car info)) |
2009 | (let ((print-escape-newlines t) | |
2010 | (print-quoted t) | |
2011 | ;; For compatibility with code before print-circle, | |
2012 | ;; use a cons cell to say that we want | |
2013 | ;; print-gensym-alist not to be cleared | |
2014 | ;; between calls to print functions. | |
2015 | (print-gensym '(t)) | |
2016 | (print-circle ; handle circular data structures | |
2017 | (not byte-compile-disable-print-circle)) | |
2018 | print-gensym-alist ; was used before print-circle existed. | |
2019 | (print-continuous-numbering t) | |
2020 | print-number-table | |
2021 | (index 0)) | |
a2b3fdbf | 2022 | (prin1 (car form) bytecomp-outbuffer) |
9ec5dfe6 SM |
2023 | (while (setq form (cdr form)) |
2024 | (setq index (1+ index)) | |
2025 | (insert " ") | |
2026 | (cond ((and (numberp specindex) (= index specindex) | |
2027 | ;; Don't handle the definition dynamically | |
2028 | ;; if it refers (or might refer) | |
2029 | ;; to objects already output | |
2030 | ;; (for instance, gensyms in the arg list). | |
2031 | (let (non-nil) | |
2032 | (dotimes (i (length print-number-table)) | |
2033 | (if (aref print-number-table i) | |
2034 | (setq non-nil t))) | |
2035 | (not non-nil))) | |
2036 | ;; Output the byte code and constants specially | |
2037 | ;; for lazy dynamic loading. | |
2038 | (let ((position | |
2039 | (byte-compile-output-as-comment | |
2040 | (cons (car form) (nth 1 form)) | |
2041 | t))) | |
2042 | (setq position (- (position-bytes position) (point-min) -1)) | |
a2b3fdbf | 2043 | (princ (format "(#$ . %d) nil" position) bytecomp-outbuffer) |
9ec5dfe6 SM |
2044 | (setq form (cdr form)) |
2045 | (setq index (1+ index)))) | |
2046 | ((= index (nth 1 info)) | |
2047 | (if position | |
2048 | (princ (format (if quoted "'(#$ . %d)" "(#$ . %d)") | |
2049 | position) | |
a2b3fdbf | 2050 | bytecomp-outbuffer) |
9ec5dfe6 SM |
2051 | (let ((print-escape-newlines nil)) |
2052 | (goto-char (prog1 (1+ (point)) | |
a2b3fdbf | 2053 | (prin1 (car form) bytecomp-outbuffer))) |
9ec5dfe6 SM |
2054 | (insert "\\\n") |
2055 | (goto-char (point-max))))) | |
2056 | (t | |
a2b3fdbf | 2057 | (prin1 (car form) bytecomp-outbuffer))))) |
9ec5dfe6 | 2058 | (insert (nth 2 info))))) |
1c393159 JB |
2059 | nil) |
2060 | ||
c2768569 | 2061 | (defun byte-compile-keep-pending (form &optional bytecomp-handler) |
1c393159 JB |
2062 | (if (memq byte-optimize '(t source)) |
2063 | (setq form (byte-optimize-form form t))) | |
c2768569 | 2064 | (if bytecomp-handler |
1c393159 JB |
2065 | (let ((for-effect t)) |
2066 | ;; To avoid consing up monstrously large forms at load time, we split | |
2067 | ;; the output regularly. | |
b4ff4a23 RS |
2068 | (and (memq (car-safe form) '(fset defalias)) |
2069 | (nthcdr 300 byte-compile-output) | |
1c393159 | 2070 | (byte-compile-flush-pending)) |
c2768569 | 2071 | (funcall bytecomp-handler form) |
1c393159 JB |
2072 | (if for-effect |
2073 | (byte-compile-discard))) | |
2074 | (byte-compile-form form t)) | |
2075 | nil) | |
2076 | ||
2077 | (defun byte-compile-flush-pending () | |
2078 | (if byte-compile-output | |
2079 | (let ((form (byte-compile-out-toplevel t 'file))) | |
2080 | (cond ((eq (car-safe form) 'progn) | |
ed62683d | 2081 | (mapc 'byte-compile-output-file-form (cdr form))) |
1c393159 JB |
2082 | (form |
2083 | (byte-compile-output-file-form form))) | |
2084 | (setq byte-compile-constants nil | |
2085 | byte-compile-variables nil | |
2086 | byte-compile-depth 0 | |
2087 | byte-compile-maxdepth 0 | |
2088 | byte-compile-output nil)))) | |
2089 | ||
2090 | (defun byte-compile-file-form (form) | |
2091 | (let ((byte-compile-current-form nil) ; close over this for warnings. | |
c2768569 | 2092 | bytecomp-handler) |
1c393159 JB |
2093 | (cond |
2094 | ((not (consp form)) | |
2095 | (byte-compile-keep-pending form)) | |
2096 | ((and (symbolp (car form)) | |
c2768569 GM |
2097 | (setq bytecomp-handler (get (car form) 'byte-hunk-handler))) |
2098 | (cond ((setq form (funcall bytecomp-handler form)) | |
1c393159 JB |
2099 | (byte-compile-flush-pending) |
2100 | (byte-compile-output-file-form form)))) | |
2101 | ((eq form (setq form (macroexpand form byte-compile-macro-environment))) | |
2102 | (byte-compile-keep-pending form)) | |
2103 | (t | |
2104 | (byte-compile-file-form form))))) | |
2105 | ||
2106 | ;; Functions and variables with doc strings must be output separately, | |
2107 | ;; so make-docfile can recognise them. Most other things can be output | |
2108 | ;; as byte-code. | |
2109 | ||
2110 | (put 'defsubst 'byte-hunk-handler 'byte-compile-file-form-defsubst) | |
2111 | (defun byte-compile-file-form-defsubst (form) | |
6c2161c4 SM |
2112 | (when (assq (nth 1 form) byte-compile-unresolved-functions) |
2113 | (setq byte-compile-current-form (nth 1 form)) | |
1d5c17c0 | 2114 | (byte-compile-warn "defsubst `%s' was used before it was defined" |
6c2161c4 | 2115 | (nth 1 form))) |
1c393159 JB |
2116 | (byte-compile-file-form |
2117 | (macroexpand form byte-compile-macro-environment)) | |
2118 | ;; Return nil so the form is not output twice. | |
2119 | nil) | |
2120 | ||
2121 | (put 'autoload 'byte-hunk-handler 'byte-compile-file-form-autoload) | |
2122 | (defun byte-compile-file-form-autoload (form) | |
2123 | (and (let ((form form)) | |
2124 | (while (if (setq form (cdr form)) (byte-compile-constp (car form)))) | |
2125 | (null form)) ;Constants only | |
2126 | (eval (nth 5 form)) ;Macro | |
2127 | (eval form)) ;Define the autoload. | |
c5091f25 | 2128 | ;; Avoid undefined function warnings for the autoload. |
cb4fb1d0 | 2129 | (when (and (consp (nth 1 form)) |
c5091f25 DL |
2130 | (eq (car (nth 1 form)) 'quote) |
2131 | (consp (cdr (nth 1 form))) | |
2132 | (symbolp (nth 1 (nth 1 form)))) | |
cb4fb1d0 GM |
2133 | (push (cons (nth 1 (nth 1 form)) |
2134 | (cons 'autoload (cdr (cdr form)))) | |
2135 | byte-compile-function-environment) | |
2136 | ;; If an autoload occurs _before_ the first call to a function, | |
2137 | ;; byte-compile-callargs-warn does not add an entry to | |
2138 | ;; byte-compile-unresolved-functions. Here we mimic the logic | |
2139 | ;; of byte-compile-callargs-warn so as not to warn if the | |
2140 | ;; autoload comes _after_ the function call. | |
2141 | ;; Alternatively, similar logic could go in | |
2142 | ;; byte-compile-warn-about-unresolved-functions. | |
2143 | (or (memq (nth 1 (nth 1 form)) byte-compile-noruntime-functions) | |
2144 | (setq byte-compile-unresolved-functions | |
2145 | (delq (assq (nth 1 (nth 1 form)) | |
2146 | byte-compile-unresolved-functions) | |
2147 | byte-compile-unresolved-functions)))) | |
1c393159 JB |
2148 | (if (stringp (nth 3 form)) |
2149 | form | |
2150 | ;; No doc string, so we can compile this as a normal form. | |
2151 | (byte-compile-keep-pending form 'byte-compile-normal-call))) | |
2152 | ||
2153 | (put 'defvar 'byte-hunk-handler 'byte-compile-file-form-defvar) | |
2154 | (put 'defconst 'byte-hunk-handler 'byte-compile-file-form-defvar) | |
2155 | (defun byte-compile-file-form-defvar (form) | |
2156 | (if (null (nth 3 form)) | |
2157 | ;; Since there is no doc string, we can compile this as a normal form, | |
2158 | ;; and not do a file-boundary. | |
2159 | (byte-compile-keep-pending form) | |
4f1e9960 | 2160 | (when (and (symbolp (nth 1 form)) |
3fe6ef4e | 2161 | (not (string-match "[-*/:$]" (symbol-name (nth 1 form)))) |
4f1e9960 | 2162 | (byte-compile-warning-enabled-p 'lexical)) |
7a16788b | 2163 | (byte-compile-warn "global/dynamic var `%s' lacks a prefix" |
4f1e9960 | 2164 | (nth 1 form))) |
2aea6521 GM |
2165 | (push (nth 1 form) byte-compile-bound-variables) |
2166 | (if (eq (car form) 'defconst) | |
2167 | (push (nth 1 form) byte-compile-const-variables)) | |
1c393159 JB |
2168 | (cond ((consp (nth 2 form)) |
2169 | (setq form (copy-sequence form)) | |
2170 | (setcar (cdr (cdr form)) | |
2171 | (byte-compile-top-level (nth 2 form) nil 'file)))) | |
2172 | form)) | |
2173 | ||
b7c76a30 SM |
2174 | (put 'define-abbrev-table 'byte-hunk-handler 'byte-compile-file-form-define-abbrev-table) |
2175 | (defun byte-compile-file-form-define-abbrev-table (form) | |
2aea6521 GM |
2176 | (if (eq 'quote (car-safe (car-safe (cdr form)))) |
2177 | (push (car-safe (cdr (cadr form))) byte-compile-bound-variables)) | |
b7c76a30 SM |
2178 | (byte-compile-keep-pending form)) |
2179 | ||
8c731d3d RS |
2180 | (put 'custom-declare-variable 'byte-hunk-handler |
2181 | 'byte-compile-file-form-custom-declare-variable) | |
2182 | (defun byte-compile-file-form-custom-declare-variable (form) | |
cf637a34 | 2183 | (when (byte-compile-warning-enabled-p 'callargs) |
fe33e7c8 | 2184 | (byte-compile-nogroup-warn form)) |
2aea6521 | 2185 | (push (nth 1 (nth 1 form)) byte-compile-bound-variables) |
2546bcdd SM |
2186 | ;; Don't compile the expression because it may be displayed to the user. |
2187 | ;; (when (eq (car-safe (nth 2 form)) 'quote) | |
2188 | ;; ;; (nth 2 form) is meant to evaluate to an expression, so if we have the | |
2189 | ;; ;; final value already, we can byte-compile it. | |
2190 | ;; (setcar (cdr (nth 2 form)) | |
2191 | ;; (byte-compile-top-level (cadr (nth 2 form)) nil 'file))) | |
347a36bc RS |
2192 | (let ((tail (nthcdr 4 form))) |
2193 | (while tail | |
2546bcdd SM |
2194 | (unless (keywordp (car tail)) ;No point optimizing keywords. |
2195 | ;; Compile the keyword arguments. | |
2196 | (setcar tail (byte-compile-top-level (car tail) nil 'file))) | |
347a36bc | 2197 | (setq tail (cdr tail)))) |
8c731d3d RS |
2198 | form) |
2199 | ||
997011eb RS |
2200 | (put 'require 'byte-hunk-handler 'byte-compile-file-form-require) |
2201 | (defun byte-compile-file-form-require (form) | |
3f12e5bd GM |
2202 | (let ((args (mapcar 'eval (cdr form))) |
2203 | (hist-orig load-history) | |
2204 | hist-new) | |
997011eb | 2205 | (apply 'require args) |
3f12e5bd GM |
2206 | (when (byte-compile-warning-enabled-p 'cl-functions) |
2207 | ;; Detect (require 'cl) in a way that works even if cl is already loaded. | |
2208 | (if (member (car args) '("cl" cl)) | |
2209 | (progn | |
2210 | (byte-compile-warn "cl package required at runtime") | |
2211 | (byte-compile-disable-warning 'cl-functions)) | |
2212 | ;; We may have required something that causes cl to be loaded, eg | |
2213 | ;; the uncompiled version of a file that requires cl when compiling. | |
2214 | (setq hist-new load-history) | |
2215 | (while (and (not byte-compile-cl-functions) | |
2216 | hist-new (not (eq hist-new hist-orig))) | |
2217 | (and (byte-compile-cl-file-p (car (pop hist-new))) | |
2218 | (byte-compile-find-cl-functions)))))) | |
1c393159 JB |
2219 | (byte-compile-keep-pending form 'byte-compile-normal-call)) |
2220 | ||
2221 | (put 'progn 'byte-hunk-handler 'byte-compile-file-form-progn) | |
2222 | (put 'prog1 'byte-hunk-handler 'byte-compile-file-form-progn) | |
2223 | (put 'prog2 'byte-hunk-handler 'byte-compile-file-form-progn) | |
2224 | (defun byte-compile-file-form-progn (form) | |
ed62683d | 2225 | (mapc 'byte-compile-file-form (cdr form)) |
1c393159 JB |
2226 | ;; Return nil so the forms are not output twice. |
2227 | nil) | |
2228 | ||
cb4fb1d0 GM |
2229 | (put 'with-no-warnings 'byte-hunk-handler |
2230 | 'byte-compile-file-form-with-no-warnings) | |
2231 | (defun byte-compile-file-form-with-no-warnings (form) | |
2232 | ;; cf byte-compile-file-form-progn. | |
2233 | (let (byte-compile-warnings) | |
2234 | (mapc 'byte-compile-file-form (cdr form)) | |
2235 | nil)) | |
2236 | ||
1c393159 JB |
2237 | ;; This handler is not necessary, but it makes the output from dont-compile |
2238 | ;; and similar macros cleaner. | |
2239 | (put 'eval 'byte-hunk-handler 'byte-compile-file-form-eval) | |
2240 | (defun byte-compile-file-form-eval (form) | |
2241 | (if (eq (car-safe (nth 1 form)) 'quote) | |
2242 | (nth 1 (nth 1 form)) | |
2243 | (byte-compile-keep-pending form))) | |
2244 | ||
2245 | (put 'defun 'byte-hunk-handler 'byte-compile-file-form-defun) | |
2246 | (defun byte-compile-file-form-defun (form) | |
2247 | (byte-compile-file-form-defmumble form nil)) | |
2248 | ||
2249 | (put 'defmacro 'byte-hunk-handler 'byte-compile-file-form-defmacro) | |
2250 | (defun byte-compile-file-form-defmacro (form) | |
2251 | (byte-compile-file-form-defmumble form t)) | |
2252 | ||
e3a6b82f SM |
2253 | (defun byte-compile-defmacro-declaration (form) |
2254 | "Generate code for declarations in macro definitions. | |
2255 | Remove declarations from the body of the macro definition | |
2256 | by side-effects." | |
2257 | (let ((tail (nthcdr 2 form)) | |
2258 | (res '())) | |
2259 | (when (stringp (car (cdr tail))) | |
2260 | (setq tail (cdr tail))) | |
2261 | (while (and (consp (car (cdr tail))) | |
2262 | (eq (car (car (cdr tail))) 'declare)) | |
2263 | (let ((declaration (car (cdr tail)))) | |
2264 | (setcdr tail (cdr (cdr tail))) | |
2265 | (push `(if macro-declaration-function | |
2266 | (funcall macro-declaration-function | |
2267 | ',(car (cdr form)) ',declaration)) | |
2268 | res))) | |
2269 | res)) | |
2270 | ||
1c393159 | 2271 | (defun byte-compile-file-form-defmumble (form macrop) |
a2b3fdbf GM |
2272 | (let* ((bytecomp-name (car (cdr form))) |
2273 | (bytecomp-this-kind (if macrop 'byte-compile-macro-environment | |
1c393159 | 2274 | 'byte-compile-function-environment)) |
a2b3fdbf | 2275 | (bytecomp-that-kind (if macrop 'byte-compile-function-environment |
1c393159 | 2276 | 'byte-compile-macro-environment)) |
a2b3fdbf GM |
2277 | (bytecomp-this-one (assq bytecomp-name |
2278 | (symbol-value bytecomp-this-kind))) | |
2279 | (bytecomp-that-one (assq bytecomp-name | |
2280 | (symbol-value bytecomp-that-kind))) | |
1c393159 JB |
2281 | (byte-compile-free-references nil) |
2282 | (byte-compile-free-assignments nil)) | |
a2b3fdbf | 2283 | (byte-compile-set-symbol-position bytecomp-name) |
1c393159 JB |
2284 | ;; When a function or macro is defined, add it to the call tree so that |
2285 | ;; we can tell when functions are not used. | |
2286 | (if byte-compile-generate-call-tree | |
a2b3fdbf | 2287 | (or (assq bytecomp-name byte-compile-call-tree) |
1c393159 | 2288 | (setq byte-compile-call-tree |
a2b3fdbf | 2289 | (cons (list bytecomp-name nil nil) byte-compile-call-tree)))) |
1c393159 | 2290 | |
a2b3fdbf | 2291 | (setq byte-compile-current-form bytecomp-name) ; for warnings |
cf637a34 | 2292 | (if (byte-compile-warning-enabled-p 'redefine) |
1c393159 JB |
2293 | (byte-compile-arglist-warn form macrop)) |
2294 | (if byte-compile-verbose | |
a2b3fdbf GM |
2295 | ;; bytecomp-filename is from byte-compile-from-buffer. |
2296 | (message "Compiling %s... (%s)" (or bytecomp-filename "") (nth 1 form))) | |
2297 | (cond (bytecomp-that-one | |
cf637a34 | 2298 | (if (and (byte-compile-warning-enabled-p 'redefine) |
52799cb8 | 2299 | ;; don't warn when compiling the stubs in byte-run... |
1c393159 JB |
2300 | (not (assq (nth 1 form) |
2301 | byte-compile-initial-macro-environment))) | |
2302 | (byte-compile-warn | |
1d5c17c0 | 2303 | "`%s' defined multiple times, as both function and macro" |
1c393159 | 2304 | (nth 1 form))) |
a2b3fdbf GM |
2305 | (setcdr bytecomp-that-one nil)) |
2306 | (bytecomp-this-one | |
cf637a34 | 2307 | (when (and (byte-compile-warning-enabled-p 'redefine) |
1c393159 | 2308 | ;; hack: don't warn when compiling the magic internal |
52799cb8 | 2309 | ;; byte-compiler macros in byte-run.el... |
1c393159 JB |
2310 | (not (assq (nth 1 form) |
2311 | byte-compile-initial-macro-environment))) | |
1d5c17c0 | 2312 | (byte-compile-warn "%s `%s' defined multiple times in this file" |
ccb3c8de CW |
2313 | (if macrop "macro" "function") |
2314 | (nth 1 form)))) | |
a2b3fdbf GM |
2315 | ((and (fboundp bytecomp-name) |
2316 | (eq (car-safe (symbol-function bytecomp-name)) | |
1c393159 | 2317 | (if macrop 'lambda 'macro))) |
cf637a34 | 2318 | (when (byte-compile-warning-enabled-p 'redefine) |
1d5c17c0 | 2319 | (byte-compile-warn "%s `%s' being redefined as a %s" |
ccb3c8de CW |
2320 | (if macrop "function" "macro") |
2321 | (nth 1 form) | |
2322 | (if macrop "macro" "function"))) | |
1c393159 | 2323 | ;; shadow existing definition |
a2b3fdbf GM |
2324 | (set bytecomp-this-kind |
2325 | (cons (cons bytecomp-name nil) | |
2326 | (symbol-value bytecomp-this-kind)))) | |
1c393159 JB |
2327 | ) |
2328 | (let ((body (nthcdr 3 form))) | |
ccb3c8de CW |
2329 | (when (and (stringp (car body)) |
2330 | (symbolp (car-safe (cdr-safe body))) | |
2331 | (car-safe (cdr-safe body)) | |
2332 | (stringp (car-safe (cdr-safe (cdr-safe body))))) | |
2333 | (byte-compile-set-symbol-position (nth 1 form)) | |
2334 | (byte-compile-warn "probable `\"' without `\\' in doc string of %s" | |
2335 | (nth 1 form)))) | |
6b8c2efc | 2336 | |
985b4686 GM |
2337 | ;; Generate code for declarations in macro definitions. |
2338 | ;; Remove declarations from the body of the macro definition. | |
2339 | (when macrop | |
e3a6b82f SM |
2340 | (dolist (decl (byte-compile-defmacro-declaration form)) |
2341 | (prin1 decl bytecomp-outbuffer))) | |
6b8c2efc | 2342 | |
4ec5239c | 2343 | (let* ((new-one (byte-compile-lambda (nthcdr 2 form) t)) |
1c393159 | 2344 | (code (byte-compile-byte-code-maker new-one))) |
a2b3fdbf GM |
2345 | (if bytecomp-this-one |
2346 | (setcdr bytecomp-this-one new-one) | |
2347 | (set bytecomp-this-kind | |
2348 | (cons (cons bytecomp-name new-one) | |
2349 | (symbol-value bytecomp-this-kind)))) | |
1c393159 JB |
2350 | (if (and (stringp (nth 3 form)) |
2351 | (eq 'quote (car-safe code)) | |
2352 | (eq 'lambda (car-safe (nth 1 code)))) | |
2353 | (cons (car form) | |
a2b3fdbf | 2354 | (cons bytecomp-name (cdr (nth 1 code)))) |
d82e848c | 2355 | (byte-compile-flush-pending) |
1c393159 | 2356 | (if (not (stringp (nth 3 form))) |
d82e848c RS |
2357 | ;; No doc string. Provide -1 as the "doc string index" |
2358 | ;; so that no element will be treated as a doc string. | |
2359 | (byte-compile-output-docform | |
e5c89ce9 | 2360 | "\n(defalias '" |
a2b3fdbf | 2361 | bytecomp-name |
d82e848c RS |
2362 | (cond ((atom code) |
2363 | (if macrop '(" '(macro . #[" -1 "])") '(" #[" -1 "]"))) | |
2364 | ((eq (car code) 'quote) | |
2365 | (setq code new-one) | |
2366 | (if macrop '(" '(macro " -1 ")") '(" '(" -1 ")"))) | |
2367 | ((if macrop '(" (cons 'macro (" -1 "))") '(" (" -1 ")")))) | |
2368 | (append code nil) | |
2369 | (and (atom code) byte-compile-dynamic | |
2370 | 1) | |
2371 | nil) | |
1c393159 | 2372 | ;; Output the form by hand, that's much simpler than having |
c36881cf | 2373 | ;; b-c-output-file-form analyze the defalias. |
1c393159 | 2374 | (byte-compile-output-docform |
e5c89ce9 | 2375 | "\n(defalias '" |
a2b3fdbf | 2376 | bytecomp-name |
1c393159 JB |
2377 | (cond ((atom code) |
2378 | (if macrop '(" '(macro . #[" 4 "])") '(" #[" 4 "]"))) | |
2379 | ((eq (car code) 'quote) | |
2380 | (setq code new-one) | |
2381 | (if macrop '(" '(macro " 2 ")") '(" '(" 2 ")"))) | |
2382 | ((if macrop '(" (cons 'macro (" 5 "))") '(" (" 5 ")")))) | |
d82e848c RS |
2383 | (append code nil) |
2384 | (and (atom code) byte-compile-dynamic | |
2385 | 1) | |
2386 | nil)) | |
a2b3fdbf | 2387 | (princ ")" bytecomp-outbuffer) |
d82e848c RS |
2388 | nil)))) |
2389 | ||
2390 | ;; Print Lisp object EXP in the output file, inside a comment, | |
2391 | ;; and return the file position it will have. | |
2392 | ;; If QUOTED is non-nil, print with quoting; otherwise, print without quoting. | |
2393 | (defun byte-compile-output-as-comment (exp quoted) | |
2d5975fa | 2394 | (let ((position (point))) |
a2b3fdbf | 2395 | (with-current-buffer bytecomp-outbuffer |
9ec5dfe6 SM |
2396 | |
2397 | ;; Insert EXP, and make it a comment with #@LENGTH. | |
2398 | (insert " ") | |
2399 | (if quoted | |
a2b3fdbf GM |
2400 | (prin1 exp bytecomp-outbuffer) |
2401 | (princ exp bytecomp-outbuffer)) | |
9ec5dfe6 SM |
2402 | (goto-char position) |
2403 | ;; Quote certain special characters as needed. | |
2404 | ;; get_doc_string in doc.c does the unquoting. | |
2405 | (while (search-forward "\^A" nil t) | |
2406 | (replace-match "\^A\^A" t t)) | |
2407 | (goto-char position) | |
2408 | (while (search-forward "\000" nil t) | |
2409 | (replace-match "\^A0" t t)) | |
2410 | (goto-char position) | |
2411 | (while (search-forward "\037" nil t) | |
2412 | (replace-match "\^A_" t t)) | |
2413 | (goto-char (point-max)) | |
2414 | (insert "\037") | |
2415 | (goto-char position) | |
2416 | (insert "#@" (format "%d" (- (position-bytes (point-max)) | |
2417 | (position-bytes position)))) | |
2418 | ||
2419 | ;; Save the file position of the object. | |
2420 | ;; Note we should add 1 to skip the space | |
2421 | ;; that we inserted before the actual doc string, | |
2422 | ;; and subtract 1 to convert from an 1-origin Emacs position | |
2423 | ;; to a file position; they cancel. | |
2424 | (setq position (point)) | |
2425 | (goto-char (point-max))) | |
d82e848c RS |
2426 | position)) |
2427 | ||
1c393159 JB |
2428 | |
2429 | \f | |
fd5285f3 | 2430 | ;;;###autoload |
1c393159 JB |
2431 | (defun byte-compile (form) |
2432 | "If FORM is a symbol, byte-compile its function definition. | |
2433 | If FORM is a lambda or a macro, byte-compile it as a function." | |
2434 | (displaying-byte-compile-warnings | |
2435 | (byte-compile-close-variables | |
2436 | (let* ((fun (if (symbolp form) | |
2437 | (and (fboundp form) (symbol-function form)) | |
2438 | form)) | |
2439 | (macro (eq (car-safe fun) 'macro))) | |
2440 | (if macro | |
2441 | (setq fun (cdr fun))) | |
2442 | (cond ((eq (car-safe fun) 'lambda) | |
2443 | (setq fun (if macro | |
2444 | (cons 'macro (byte-compile-lambda fun)) | |
2445 | (byte-compile-lambda fun))) | |
2446 | (if (symbolp form) | |
c36881cf | 2447 | (defalias form fun) |
1c393159 JB |
2448 | fun))))))) |
2449 | ||
2450 | (defun byte-compile-sexp (sexp) | |
2451 | "Compile and return SEXP." | |
2452 | (displaying-byte-compile-warnings | |
2453 | (byte-compile-close-variables | |
2454 | (byte-compile-top-level sexp)))) | |
2455 | ||
2456 | ;; Given a function made by byte-compile-lambda, make a form which produces it. | |
2457 | (defun byte-compile-byte-code-maker (fun) | |
2458 | (cond | |
1c393159 JB |
2459 | ;; ## atom is faster than compiled-func-p. |
2460 | ((atom fun) ; compiled function. | |
2461 | ;; generate-emacs19-bytecodes must be on, otherwise byte-compile-lambda | |
2462 | ;; would have produced a lambda. | |
469414a0 | 2463 | fun) |
1c393159 | 2464 | ;; b-c-lambda didn't produce a compiled-function, so it's either a trivial |
52799cb8 | 2465 | ;; function, or this is Emacs 18, or generate-emacs19-bytecodes is off. |
1c393159 JB |
2466 | ((let (tmp) |
2467 | (if (and (setq tmp (assq 'byte-code (cdr-safe (cdr fun)))) | |
2468 | (null (cdr (memq tmp fun)))) | |
2469 | ;; Generate a make-byte-code call. | |
2470 | (let* ((interactive (assq 'interactive (cdr (cdr fun))))) | |
2471 | (nconc (list 'make-byte-code | |
2472 | (list 'quote (nth 1 fun)) ;arglist | |
2473 | (nth 1 tmp) ;bytes | |
2474 | (nth 2 tmp) ;consts | |
2475 | (nth 3 tmp)) ;depth | |
2476 | (cond ((stringp (nth 2 fun)) | |
2477 | (list (nth 2 fun))) ;doc | |
2478 | (interactive | |
2479 | (list nil))) | |
2480 | (cond (interactive | |
2481 | (list (if (or (null (nth 1 interactive)) | |
2482 | (stringp (nth 1 interactive))) | |
2483 | (nth 1 interactive) | |
2484 | ;; Interactive spec is a list or a variable | |
2485 | ;; (if it is correct). | |
2486 | (list 'quote (nth 1 interactive)))))))) | |
2487 | ;; a non-compiled function (probably trivial) | |
2488 | (list 'quote fun)))))) | |
2489 | ||
2490 | ;; Turn a function into an ordinary lambda. Needed for v18 files. | |
2491 | (defun byte-compile-byte-code-unmake (function) | |
2492 | (if (consp function) | |
2493 | function;;It already is a lambda. | |
2494 | (setq function (append function nil)) ; turn it into a list | |
2495 | (nconc (list 'lambda (nth 0 function)) | |
2496 | (and (nth 4 function) (list (nth 4 function))) | |
2497 | (if (nthcdr 5 function) | |
2498 | (list (cons 'interactive (if (nth 5 function) | |
2499 | (nthcdr 5 function))))) | |
2500 | (list (list 'byte-code | |
2501 | (nth 1 function) (nth 2 function) | |
2502 | (nth 3 function)))))) | |
2503 | ||
2504 | ||
eadd6444 GM |
2505 | (defun byte-compile-check-lambda-list (list) |
2506 | "Check lambda-list LIST for errors." | |
2507 | (let (vars) | |
2508 | (while list | |
2509 | (let ((arg (car list))) | |
ccb3c8de CW |
2510 | (when (symbolp arg) |
2511 | (byte-compile-set-symbol-position arg)) | |
1f006824 | 2512 | (cond ((or (not (symbolp arg)) |
6c2161c4 | 2513 | (byte-compile-const-symbol-p arg t)) |
eadd6444 GM |
2514 | (error "Invalid lambda variable %s" arg)) |
2515 | ((eq arg '&rest) | |
2516 | (unless (cdr list) | |
2517 | (error "&rest without variable name")) | |
2518 | (when (cddr list) | |
2519 | (error "Garbage following &rest VAR in lambda-list"))) | |
2520 | ((eq arg '&optional) | |
2521 | (unless (cdr list) | |
2522 | (error "Variable name missing after &optional"))) | |
2523 | ((memq arg vars) | |
e34fd2f2 | 2524 | (byte-compile-warn "repeated variable %s in lambda-list" arg)) |
1f006824 | 2525 | (t |
eadd6444 GM |
2526 | (push arg vars)))) |
2527 | (setq list (cdr list))))) | |
2528 | ||
2529 | ||
1c393159 JB |
2530 | ;; Byte-compile a lambda-expression and return a valid function. |
2531 | ;; The value is usually a compiled function but may be the original | |
2532 | ;; lambda-expression. | |
4ec5239c LH |
2533 | ;; When ADD-LAMBDA is non-nil, the symbol `lambda' is added as head |
2534 | ;; of the list FUN and `byte-compile-set-symbol-position' is not called. | |
2535 | ;; Use this feature to avoid calling `byte-compile-set-symbol-position' | |
2536 | ;; for symbols generated by the byte compiler itself. | |
c2768569 | 2537 | (defun byte-compile-lambda (bytecomp-fun &optional add-lambda) |
4ec5239c | 2538 | (if add-lambda |
c2768569 GM |
2539 | (setq bytecomp-fun (cons 'lambda bytecomp-fun)) |
2540 | (unless (eq 'lambda (car-safe bytecomp-fun)) | |
2541 | (error "Not a lambda list: %S" bytecomp-fun)) | |
4ec5239c | 2542 | (byte-compile-set-symbol-position 'lambda)) |
c2768569 GM |
2543 | (byte-compile-check-lambda-list (nth 1 bytecomp-fun)) |
2544 | (let* ((bytecomp-arglist (nth 1 bytecomp-fun)) | |
1c393159 | 2545 | (byte-compile-bound-variables |
cf637a34 | 2546 | (nconc (and (byte-compile-warning-enabled-p 'free-vars) |
c2768569 GM |
2547 | (delq '&rest |
2548 | (delq '&optional (copy-sequence bytecomp-arglist)))) | |
1c393159 | 2549 | byte-compile-bound-variables)) |
c2768569 GM |
2550 | (bytecomp-body (cdr (cdr bytecomp-fun))) |
2551 | (bytecomp-doc (if (stringp (car bytecomp-body)) | |
2552 | (prog1 (car bytecomp-body) | |
d8f59f56 RS |
2553 | ;; Discard the doc string |
2554 | ;; unless it is the last element of the body. | |
c2768569 GM |
2555 | (if (cdr bytecomp-body) |
2556 | (setq bytecomp-body (cdr bytecomp-body)))))) | |
2557 | (bytecomp-int (assq 'interactive bytecomp-body))) | |
6c2161c4 | 2558 | ;; Process the interactive spec. |
c2768569 | 2559 | (when bytecomp-int |
6c2161c4 SM |
2560 | (byte-compile-set-symbol-position 'interactive) |
2561 | ;; Skip (interactive) if it is in front (the most usual location). | |
c2768569 GM |
2562 | (if (eq bytecomp-int (car bytecomp-body)) |
2563 | (setq bytecomp-body (cdr bytecomp-body))) | |
2564 | (cond ((consp (cdr bytecomp-int)) | |
2565 | (if (cdr (cdr bytecomp-int)) | |
6c2161c4 | 2566 | (byte-compile-warn "malformed interactive spec: %s" |
c2768569 | 2567 | (prin1-to-string bytecomp-int))) |
6b61353c KH |
2568 | ;; If the interactive spec is a call to `list', don't |
2569 | ;; compile it, because `call-interactively' looks at the | |
2570 | ;; args of `list'. Actually, compile it to get warnings, | |
2571 | ;; but don't use the result. | |
c2768569 | 2572 | (let ((form (nth 1 bytecomp-int))) |
6c2161c4 SM |
2573 | (while (memq (car-safe form) '(let let* progn save-excursion)) |
2574 | (while (consp (cdr form)) | |
2575 | (setq form (cdr form))) | |
2576 | (setq form (car form))) | |
6b61353c | 2577 | (if (eq (car-safe form) 'list) |
c2768569 GM |
2578 | (byte-compile-top-level (nth 1 bytecomp-int)) |
2579 | (setq bytecomp-int (list 'interactive | |
2580 | (byte-compile-top-level | |
2581 | (nth 1 bytecomp-int))))))) | |
2582 | ((cdr bytecomp-int) | |
6c2161c4 | 2583 | (byte-compile-warn "malformed interactive spec: %s" |
c2768569 | 2584 | (prin1-to-string bytecomp-int))))) |
6c2161c4 | 2585 | ;; Process the body. |
c2768569 GM |
2586 | (let ((compiled (byte-compile-top-level |
2587 | (cons 'progn bytecomp-body) nil 'lambda))) | |
6c2161c4 | 2588 | ;; Build the actual byte-coded function. |
e5c89ce9 | 2589 | (if (eq 'byte-code (car-safe compiled)) |
1c393159 | 2590 | (apply 'make-byte-code |
c2768569 | 2591 | (append (list bytecomp-arglist) |
1c393159 JB |
2592 | ;; byte-string, constants-vector, stack depth |
2593 | (cdr compiled) | |
2594 | ;; optionally, the doc string. | |
c2768569 GM |
2595 | (if (or bytecomp-doc bytecomp-int) |
2596 | (list bytecomp-doc)) | |
1c393159 | 2597 | ;; optionally, the interactive spec. |
c2768569 GM |
2598 | (if bytecomp-int |
2599 | (list (nth 1 bytecomp-int))))) | |
1c393159 | 2600 | (setq compiled |
c2768569 | 2601 | (nconc (if bytecomp-int (list bytecomp-int)) |
1c393159 JB |
2602 | (cond ((eq (car-safe compiled) 'progn) (cdr compiled)) |
2603 | (compiled (list compiled))))) | |
c2768569 GM |
2604 | (nconc (list 'lambda bytecomp-arglist) |
2605 | (if (or bytecomp-doc (stringp (car compiled))) | |
2606 | (cons bytecomp-doc (cond (compiled) | |
2607 | (bytecomp-body (list nil)))) | |
1c393159 JB |
2608 | compiled)))))) |
2609 | ||
2610 | (defun byte-compile-constants-vector () | |
2611 | ;; Builds the constants-vector from the current variables and constants. | |
2612 | ;; This modifies the constants from (const . nil) to (const . offset). | |
2613 | ;; To keep the byte-codes to look up the vector as short as possible: | |
2614 | ;; First 6 elements are vars, as there are one-byte varref codes for those. | |
2615 | ;; Next up to byte-constant-limit are constants, still with one-byte codes. | |
2616 | ;; Next variables again, to get 2-byte codes for variable lookup. | |
2617 | ;; The rest of the constants and variables need 3-byte byte-codes. | |
2618 | (let* ((i -1) | |
2619 | (rest (nreverse byte-compile-variables)) ; nreverse because the first | |
2620 | (other (nreverse byte-compile-constants)) ; vars often are used most. | |
2621 | ret tmp | |
2622 | (limits '(5 ; Use the 1-byte varref codes, | |
2623 | 63 ; 1-constlim ; 1-byte byte-constant codes, | |
2624 | 255 ; 2-byte varref codes, | |
2625 | 65535)) ; 3-byte codes for the rest. | |
2626 | limit) | |
2627 | (while (or rest other) | |
2628 | (setq limit (car limits)) | |
2629 | (while (and rest (not (eq i limit))) | |
2630 | (if (setq tmp (assq (car (car rest)) ret)) | |
2631 | (setcdr (car rest) (cdr tmp)) | |
2632 | (setcdr (car rest) (setq i (1+ i))) | |
2633 | (setq ret (cons (car rest) ret))) | |
2634 | (setq rest (cdr rest))) | |
2635 | (setq limits (cdr limits) | |
2636 | rest (prog1 other | |
2637 | (setq other rest)))) | |
2638 | (apply 'vector (nreverse (mapcar 'car ret))))) | |
2639 | ||
2640 | ;; Given an expression FORM, compile it and return an equivalent byte-code | |
2641 | ;; expression (a call to the function byte-code). | |
2642 | (defun byte-compile-top-level (form &optional for-effect output-type) | |
2643 | ;; OUTPUT-TYPE advises about how form is expected to be used: | |
2644 | ;; 'eval or nil -> a single form, | |
2645 | ;; 'progn or t -> a list of forms, | |
2646 | ;; 'lambda -> body of a lambda, | |
2647 | ;; 'file -> used at file-level. | |
285cdf4e RS |
2648 | (let ((byte-compile-constants nil) |
2649 | (byte-compile-variables nil) | |
2650 | (byte-compile-tag-number 0) | |
2651 | (byte-compile-depth 0) | |
2652 | (byte-compile-maxdepth 0) | |
2653 | (byte-compile-output nil)) | |
d9e42bcf RS |
2654 | (if (memq byte-optimize '(t source)) |
2655 | (setq form (byte-optimize-form form for-effect))) | |
2656 | (while (and (eq (car-safe form) 'progn) (null (cdr (cdr form)))) | |
2657 | (setq form (nth 1 form))) | |
2658 | (if (and (eq 'byte-code (car-safe form)) | |
2659 | (not (memq byte-optimize '(t byte))) | |
2660 | (stringp (nth 1 form)) (vectorp (nth 2 form)) | |
2661 | (natnump (nth 3 form))) | |
2662 | form | |
2663 | (byte-compile-form form for-effect) | |
285cdf4e | 2664 | (byte-compile-out-toplevel for-effect output-type)))) |
1c393159 JB |
2665 | |
2666 | (defun byte-compile-out-toplevel (&optional for-effect output-type) | |
2667 | (if for-effect | |
2668 | ;; The stack is empty. Push a value to be returned from (byte-code ..). | |
2669 | (if (eq (car (car byte-compile-output)) 'byte-discard) | |
2670 | (setq byte-compile-output (cdr byte-compile-output)) | |
2671 | (byte-compile-push-constant | |
2672 | ;; Push any constant - preferably one which already is used, and | |
2673 | ;; a number or symbol - ie not some big sequence. The return value | |
2674 | ;; isn't returned, but it would be a shame if some textually large | |
2675 | ;; constant was not optimized away because we chose to return it. | |
2676 | (and (not (assq nil byte-compile-constants)) ; Nil is often there. | |
2677 | (let ((tmp (reverse byte-compile-constants))) | |
ba76e7fa SM |
2678 | (while (and tmp (not (or (symbolp (caar tmp)) |
2679 | (numberp (caar tmp))))) | |
1c393159 | 2680 | (setq tmp (cdr tmp))) |
ba76e7fa | 2681 | (caar tmp)))))) |
1c393159 JB |
2682 | (byte-compile-out 'byte-return 0) |
2683 | (setq byte-compile-output (nreverse byte-compile-output)) | |
2684 | (if (memq byte-optimize '(t byte)) | |
2685 | (setq byte-compile-output | |
2686 | (byte-optimize-lapcode byte-compile-output for-effect))) | |
1f006824 | 2687 | |
1c393159 JB |
2688 | ;; Decompile trivial functions: |
2689 | ;; only constants and variables, or a single funcall except in lambdas. | |
2690 | ;; Except for Lisp_Compiled objects, forms like (foo "hi") | |
2691 | ;; are still quicker than (byte-code "..." [foo "hi"] 2). | |
2692 | ;; Note that even (quote foo) must be parsed just as any subr by the | |
2693 | ;; interpreter, so quote should be compiled into byte-code in some contexts. | |
2694 | ;; What to leave uncompiled: | |
69dc83fd KH |
2695 | ;; lambda -> never. we used to leave it uncompiled if the body was |
2696 | ;; a single atom, but that causes confusion if the docstring | |
2697 | ;; uses the (file . pos) syntax. Besides, now that we have | |
2698 | ;; the Lisp_Compiled type, the compiled form is faster. | |
1c393159 JB |
2699 | ;; eval -> atom, quote or (function atom atom atom) |
2700 | ;; progn -> as <<same-as-eval>> or (progn <<same-as-eval>> atom) | |
2701 | ;; file -> as progn, but takes both quotes and atoms, and longer forms. | |
2702 | (let (rest | |
2703 | (maycall (not (eq output-type 'lambda))) ; t if we may make a funcall. | |
2704 | tmp body) | |
2705 | (cond | |
2706 | ;; #### This should be split out into byte-compile-nontrivial-function-p. | |
69dc83fd KH |
2707 | ((or (eq output-type 'lambda) |
2708 | (nthcdr (if (eq output-type 'file) 50 8) byte-compile-output) | |
1c393159 JB |
2709 | (assq 'TAG byte-compile-output) ; Not necessary, but speeds up a bit. |
2710 | (not (setq tmp (assq 'byte-return byte-compile-output))) | |
2711 | (progn | |
2712 | (setq rest (nreverse | |
2713 | (cdr (memq tmp (reverse byte-compile-output))))) | |
2714 | (while (cond | |
2715 | ((memq (car (car rest)) '(byte-varref byte-constant)) | |
2716 | (setq tmp (car (cdr (car rest)))) | |
469414a0 RS |
2717 | (if (if (eq (car (car rest)) 'byte-constant) |
2718 | (or (consp tmp) | |
2719 | (and (symbolp tmp) | |
1639b803 | 2720 | (not (byte-compile-const-symbol-p tmp))))) |
469414a0 RS |
2721 | (if maycall |
2722 | (setq body (cons (list 'quote tmp) body))) | |
2723 | (setq body (cons tmp body)))) | |
1c393159 JB |
2724 | ((and maycall |
2725 | ;; Allow a funcall if at most one atom follows it. | |
2726 | (null (nthcdr 3 rest)) | |
2727 | (setq tmp (get (car (car rest)) 'byte-opcode-invert)) | |
2728 | (or (null (cdr rest)) | |
2729 | (and (memq output-type '(file progn t)) | |
2730 | (cdr (cdr rest)) | |
2731 | (eq (car (nth 1 rest)) 'byte-discard) | |
2732 | (progn (setq rest (cdr rest)) t)))) | |
2733 | (setq maycall nil) ; Only allow one real function call. | |
2734 | (setq body (nreverse body)) | |
2735 | (setq body (list | |
2736 | (if (and (eq tmp 'funcall) | |
2737 | (eq (car-safe (car body)) 'quote)) | |
2738 | (cons (nth 1 (car body)) (cdr body)) | |
2739 | (cons tmp body)))) | |
2740 | (or (eq output-type 'file) | |
2741 | (not (delq nil (mapcar 'consp (cdr (car body)))))))) | |
2742 | (setq rest (cdr rest))) | |
69dc83fd | 2743 | rest)) |
1c393159 JB |
2744 | (let ((byte-compile-vector (byte-compile-constants-vector))) |
2745 | (list 'byte-code (byte-compile-lapcode byte-compile-output) | |
2746 | byte-compile-vector byte-compile-maxdepth))) | |
2747 | ;; it's a trivial function | |
2748 | ((cdr body) (cons 'progn (nreverse body))) | |
2749 | ((car body))))) | |
2750 | ||
c2768569 GM |
2751 | ;; Given BYTECOMP-BODY, compile it and return a new body. |
2752 | (defun byte-compile-top-level-body (bytecomp-body &optional for-effect) | |
2753 | (setq bytecomp-body | |
2754 | (byte-compile-top-level (cons 'progn bytecomp-body) for-effect t)) | |
2755 | (cond ((eq (car-safe bytecomp-body) 'progn) | |
2756 | (cdr bytecomp-body)) | |
2757 | (bytecomp-body | |
2758 | (list bytecomp-body)))) | |
d97362d7 GM |
2759 | |
2760 | (put 'declare-function 'byte-hunk-handler 'byte-compile-declare-function) | |
2761 | (defun byte-compile-declare-function (form) | |
2762 | (push (cons (nth 1 form) | |
7628b337 GM |
2763 | (if (and (> (length form) 3) |
2764 | (listp (nth 3 form))) | |
2765 | (list 'declared (nth 3 form)) | |
2766 | t)) ; arglist not specified | |
d97362d7 | 2767 | byte-compile-function-environment) |
a342aca4 GM |
2768 | ;; We are stating that it _will_ be defined at runtime. |
2769 | (setq byte-compile-noruntime-functions | |
2770 | (delq (nth 1 form) byte-compile-noruntime-functions)) | |
d97362d7 GM |
2771 | nil) |
2772 | ||
1c393159 | 2773 | \f |
c5091f25 | 2774 | ;; This is the recursive entry point for compiling each subform of an |
1c393159 JB |
2775 | ;; expression. |
2776 | ;; If for-effect is non-nil, byte-compile-form will output a byte-discard | |
2777 | ;; before terminating (ie no value will be left on the stack). | |
2778 | ;; A byte-compile handler may, when for-effect is non-nil, choose output code | |
2779 | ;; which does not leave a value on the stack, and then set for-effect to nil | |
2780 | ;; (to prevent byte-compile-form from outputting the byte-discard). | |
2781 | ;; If a handler wants to call another handler, it should do so via | |
2782 | ;; byte-compile-form, or take extreme care to handle for-effect correctly. | |
2783 | ;; (Use byte-compile-form-do-effect to reset the for-effect flag too.) | |
2784 | ;; | |
2785 | (defun byte-compile-form (form &optional for-effect) | |
2786 | (setq form (macroexpand form byte-compile-macro-environment)) | |
2787 | (cond ((not (consp form)) | |
1639b803 | 2788 | (cond ((or (not (symbolp form)) (byte-compile-const-symbol-p form)) |
0b46acbf RS |
2789 | (when (symbolp form) |
2790 | (byte-compile-set-symbol-position form)) | |
1c393159 JB |
2791 | (byte-compile-constant form)) |
2792 | ((and for-effect byte-compile-delete-errors) | |
0b46acbf RS |
2793 | (when (symbolp form) |
2794 | (byte-compile-set-symbol-position form)) | |
1c393159 JB |
2795 | (setq for-effect nil)) |
2796 | (t (byte-compile-variable-ref 'byte-varref form)))) | |
2797 | ((symbolp (car form)) | |
c2768569 GM |
2798 | (let* ((bytecomp-fn (car form)) |
2799 | (bytecomp-handler (get bytecomp-fn 'byte-compile))) | |
2800 | (when (byte-compile-const-symbol-p bytecomp-fn) | |
2801 | (byte-compile-warn "`%s' called as a function" bytecomp-fn)) | |
cf637a34 | 2802 | (and (byte-compile-warning-enabled-p 'interactive-only) |
c2768569 | 2803 | (memq bytecomp-fn byte-compile-interactive-only-functions) |
086af77c | 2804 | (byte-compile-warn "`%s' used from Lisp code\n\ |
c2768569 | 2805 | That command is designed for interactive use only" bytecomp-fn)) |
88d5190c GM |
2806 | (when (byte-compile-warning-enabled-p 'callargs) |
2807 | (if (memq bytecomp-fn | |
2808 | '(custom-declare-group custom-declare-variable | |
2809 | custom-declare-face)) | |
2810 | (byte-compile-nogroup-warn form)) | |
2811 | (byte-compile-callargs-warn form)) | |
c2768569 | 2812 | (if (and bytecomp-handler |
67438f77 SM |
2813 | ;; Make sure that function exists. This is important |
2814 | ;; for CL compiler macros since the symbol may be | |
2815 | ;; `cl-byte-compile-compiler-macro' but if CL isn't | |
2816 | ;; loaded, this function doesn't exist. | |
c2768569 GM |
2817 | (or (not (memq bytecomp-handler |
2818 | '(cl-byte-compile-compiler-macro))) | |
e5c89ce9 | 2819 | (functionp bytecomp-handler))) |
c2768569 | 2820 | (funcall bytecomp-handler form) |
4795d1c7 | 2821 | (byte-compile-normal-call form)) |
cf637a34 | 2822 | (if (byte-compile-warning-enabled-p 'cl-functions) |
4795d1c7 | 2823 | (byte-compile-cl-warn form)))) |
ed015bdd | 2824 | ((and (or (byte-code-function-p (car form)) |
1c393159 JB |
2825 | (eq (car-safe (car form)) 'lambda)) |
2826 | ;; if the form comes out the same way it went in, that's | |
2827 | ;; because it was malformed, and we couldn't unfold it. | |
2828 | (not (eq form (setq form (byte-compile-unfold-lambda form))))) | |
2829 | (byte-compile-form form for-effect) | |
2830 | (setq for-effect nil)) | |
2831 | ((byte-compile-normal-call form))) | |
2832 | (if for-effect | |
2833 | (byte-compile-discard))) | |
2834 | ||
2835 | (defun byte-compile-normal-call (form) | |
2836 | (if byte-compile-generate-call-tree | |
2837 | (byte-compile-annotate-call-tree form)) | |
86da2828 | 2838 | (when (and for-effect (eq (car form) 'mapcar) |
cf637a34 | 2839 | (byte-compile-warning-enabled-p 'mapcar)) |
89c91fdb GM |
2840 | (byte-compile-set-symbol-position 'mapcar) |
2841 | (byte-compile-warn | |
2842 | "`mapcar' called for effect; use `mapc' or `dolist' instead")) | |
1c393159 | 2843 | (byte-compile-push-constant (car form)) |
ed62683d | 2844 | (mapc 'byte-compile-form (cdr form)) ; wasteful, but faster. |
1c393159 JB |
2845 | (byte-compile-out 'byte-call (length (cdr form)))) |
2846 | ||
c2768569 GM |
2847 | (defun byte-compile-variable-ref (base-op bytecomp-var) |
2848 | (when (symbolp bytecomp-var) | |
2849 | (byte-compile-set-symbol-position bytecomp-var)) | |
2850 | (if (or (not (symbolp bytecomp-var)) | |
2851 | (byte-compile-const-symbol-p bytecomp-var | |
2852 | (not (eq base-op 'byte-varref)))) | |
416d3588 GM |
2853 | (if (byte-compile-warning-enabled-p 'constants) |
2854 | (byte-compile-warn | |
2855 | (cond ((eq base-op 'byte-varbind) "attempt to let-bind %s `%s'") | |
2856 | ((eq base-op 'byte-varset) "variable assignment to %s `%s'") | |
2857 | (t "variable reference to %s `%s'")) | |
2858 | (if (symbolp bytecomp-var) "constant" "nonvariable") | |
2859 | (prin1-to-string bytecomp-var))) | |
c2768569 | 2860 | (and (get bytecomp-var 'byte-obsolete-variable) |
8480fc7c | 2861 | (not (memq bytecomp-var byte-compile-not-obsolete-vars)) |
c2768569 | 2862 | (byte-compile-warn-obsolete bytecomp-var)) |
2aea6521 GM |
2863 | (if (eq base-op 'byte-varbind) |
2864 | (push bytecomp-var byte-compile-bound-variables) | |
2865 | (or (not (byte-compile-warning-enabled-p 'free-vars)) | |
2866 | (boundp bytecomp-var) | |
2867 | (memq bytecomp-var byte-compile-bound-variables) | |
2868 | (if (eq base-op 'byte-varset) | |
2869 | (or (memq bytecomp-var byte-compile-free-assignments) | |
2870 | (progn | |
2871 | (byte-compile-warn "assignment to free variable `%s'" | |
2872 | bytecomp-var) | |
2873 | (push bytecomp-var byte-compile-free-assignments))) | |
2874 | (or (memq bytecomp-var byte-compile-free-references) | |
2875 | (progn | |
2876 | (byte-compile-warn "reference to free variable `%s'" | |
2877 | bytecomp-var) | |
2878 | (push bytecomp-var byte-compile-free-references))))))) | |
c2768569 | 2879 | (let ((tmp (assq bytecomp-var byte-compile-variables))) |
6c2161c4 | 2880 | (unless tmp |
c2768569 | 2881 | (setq tmp (list bytecomp-var)) |
6c2161c4 | 2882 | (push tmp byte-compile-variables)) |
1c393159 JB |
2883 | (byte-compile-out base-op tmp))) |
2884 | ||
2885 | (defmacro byte-compile-get-constant (const) | |
1639b803 | 2886 | `(or (if (stringp ,const) |
7fb4fa10 RS |
2887 | ;; In a string constant, treat properties as significant. |
2888 | (let (result) | |
2889 | (dolist (elt byte-compile-constants) | |
2890 | (if (equal-including-properties (car elt) ,const) | |
2891 | (setq result elt))) | |
2892 | result) | |
1639b803 DL |
2893 | (assq ,const byte-compile-constants)) |
2894 | (car (setq byte-compile-constants | |
2895 | (cons (list ,const) byte-compile-constants))))) | |
1c393159 JB |
2896 | |
2897 | ;; Use this when the value of a form is a constant. This obeys for-effect. | |
2898 | (defun byte-compile-constant (const) | |
2899 | (if for-effect | |
2900 | (setq for-effect nil) | |
ccb3c8de CW |
2901 | (when (symbolp const) |
2902 | (byte-compile-set-symbol-position const)) | |
1c393159 JB |
2903 | (byte-compile-out 'byte-constant (byte-compile-get-constant const)))) |
2904 | ||
2905 | ;; Use this for a constant that is not the value of its containing form. | |
2906 | ;; This ignores for-effect. | |
2907 | (defun byte-compile-push-constant (const) | |
2908 | (let ((for-effect nil)) | |
2909 | (inline (byte-compile-constant const)))) | |
2910 | ||
2911 | \f | |
2912 | ;; Compile those primitive ordinary functions | |
2913 | ;; which have special byte codes just for speed. | |
2914 | ||
2915 | (defmacro byte-defop-compiler (function &optional compile-handler) | |
9d28c33e SM |
2916 | "Add a compiler-form for FUNCTION. |
2917 | If function is a symbol, then the variable \"byte-SYMBOL\" must name | |
2918 | the opcode to be used. If function is a list, the first element | |
2919 | is the function and the second element is the bytecode-symbol. | |
2920 | The second element may be nil, meaning there is no opcode. | |
2921 | COMPILE-HANDLER is the function to use to compile this byte-op, or | |
2922 | may be the abbreviations 0, 1, 2, 3, 0-1, or 1-2. | |
2923 | If it is nil, then the handler is \"byte-compile-SYMBOL.\"" | |
1c393159 JB |
2924 | (let (opcode) |
2925 | (if (symbolp function) | |
2926 | (setq opcode (intern (concat "byte-" (symbol-name function)))) | |
2927 | (setq opcode (car (cdr function)) | |
2928 | function (car function))) | |
2929 | (let ((fnform | |
2930 | (list 'put (list 'quote function) ''byte-compile | |
2931 | (list 'quote | |
2932 | (or (cdr (assq compile-handler | |
2933 | '((0 . byte-compile-no-args) | |
2934 | (1 . byte-compile-one-arg) | |
2935 | (2 . byte-compile-two-args) | |
2936 | (3 . byte-compile-three-args) | |
2937 | (0-1 . byte-compile-zero-or-one-arg) | |
2938 | (1-2 . byte-compile-one-or-two-args) | |
2939 | (2-3 . byte-compile-two-or-three-args) | |
2940 | ))) | |
2941 | compile-handler | |
2942 | (intern (concat "byte-compile-" | |
2943 | (symbol-name function)))))))) | |
2944 | (if opcode | |
2945 | (list 'progn fnform | |
2946 | (list 'put (list 'quote function) | |
2947 | ''byte-opcode (list 'quote opcode)) | |
2948 | (list 'put (list 'quote opcode) | |
2949 | ''byte-opcode-invert (list 'quote function))) | |
2950 | fnform)))) | |
2951 | ||
1c393159 JB |
2952 | (defmacro byte-defop-compiler-1 (function &optional compile-handler) |
2953 | (list 'byte-defop-compiler (list function nil) compile-handler)) | |
2954 | ||
2955 | \f | |
2956 | (put 'byte-call 'byte-opcode-invert 'funcall) | |
2957 | (put 'byte-list1 'byte-opcode-invert 'list) | |
2958 | (put 'byte-list2 'byte-opcode-invert 'list) | |
2959 | (put 'byte-list3 'byte-opcode-invert 'list) | |
2960 | (put 'byte-list4 'byte-opcode-invert 'list) | |
2961 | (put 'byte-listN 'byte-opcode-invert 'list) | |
2962 | (put 'byte-concat2 'byte-opcode-invert 'concat) | |
2963 | (put 'byte-concat3 'byte-opcode-invert 'concat) | |
2964 | (put 'byte-concat4 'byte-opcode-invert 'concat) | |
2965 | (put 'byte-concatN 'byte-opcode-invert 'concat) | |
2966 | (put 'byte-insertN 'byte-opcode-invert 'insert) | |
2967 | ||
1c393159 JB |
2968 | (byte-defop-compiler point 0) |
2969 | ;;(byte-defop-compiler mark 0) ;; obsolete | |
2970 | (byte-defop-compiler point-max 0) | |
2971 | (byte-defop-compiler point-min 0) | |
2972 | (byte-defop-compiler following-char 0) | |
2973 | (byte-defop-compiler preceding-char 0) | |
2974 | (byte-defop-compiler current-column 0) | |
2975 | (byte-defop-compiler eolp 0) | |
2976 | (byte-defop-compiler eobp 0) | |
2977 | (byte-defop-compiler bolp 0) | |
2978 | (byte-defop-compiler bobp 0) | |
2979 | (byte-defop-compiler current-buffer 0) | |
2980 | ;;(byte-defop-compiler read-char 0) ;; obsolete | |
2981 | (byte-defop-compiler interactive-p 0) | |
eef899a9 GM |
2982 | (byte-defop-compiler widen 0) |
2983 | (byte-defop-compiler end-of-line 0-1) | |
2984 | (byte-defop-compiler forward-char 0-1) | |
2985 | (byte-defop-compiler forward-line 0-1) | |
1c393159 JB |
2986 | (byte-defop-compiler symbolp 1) |
2987 | (byte-defop-compiler consp 1) | |
2988 | (byte-defop-compiler stringp 1) | |
2989 | (byte-defop-compiler listp 1) | |
2990 | (byte-defop-compiler not 1) | |
2991 | (byte-defop-compiler (null byte-not) 1) | |
2992 | (byte-defop-compiler car 1) | |
2993 | (byte-defop-compiler cdr 1) | |
2994 | (byte-defop-compiler length 1) | |
2995 | (byte-defop-compiler symbol-value 1) | |
2996 | (byte-defop-compiler symbol-function 1) | |
2997 | (byte-defop-compiler (1+ byte-add1) 1) | |
2998 | (byte-defop-compiler (1- byte-sub1) 1) | |
2999 | (byte-defop-compiler goto-char 1) | |
b8ae93ad | 3000 | (byte-defop-compiler char-after 0-1) |
1c393159 JB |
3001 | (byte-defop-compiler set-buffer 1) |
3002 | ;;(byte-defop-compiler set-mark 1) ;; obsolete | |
eef899a9 GM |
3003 | (byte-defop-compiler forward-word 0-1) |
3004 | (byte-defop-compiler char-syntax 1) | |
3005 | (byte-defop-compiler nreverse 1) | |
3006 | (byte-defop-compiler car-safe 1) | |
3007 | (byte-defop-compiler cdr-safe 1) | |
3008 | (byte-defop-compiler numberp 1) | |
3009 | (byte-defop-compiler integerp 1) | |
3010 | (byte-defop-compiler skip-chars-forward 1-2) | |
3011 | (byte-defop-compiler skip-chars-backward 1-2) | |
1c393159 JB |
3012 | (byte-defop-compiler eq 2) |
3013 | (byte-defop-compiler memq 2) | |
3014 | (byte-defop-compiler cons 2) | |
3015 | (byte-defop-compiler aref 2) | |
3016 | (byte-defop-compiler set 2) | |
3017 | (byte-defop-compiler (= byte-eqlsign) 2) | |
3018 | (byte-defop-compiler (< byte-lss) 2) | |
3019 | (byte-defop-compiler (> byte-gtr) 2) | |
3020 | (byte-defop-compiler (<= byte-leq) 2) | |
3021 | (byte-defop-compiler (>= byte-geq) 2) | |
3022 | (byte-defop-compiler get 2) | |
3023 | (byte-defop-compiler nth 2) | |
3024 | (byte-defop-compiler substring 2-3) | |
eef899a9 GM |
3025 | (byte-defop-compiler (move-marker byte-set-marker) 2-3) |
3026 | (byte-defop-compiler set-marker 2-3) | |
3027 | (byte-defop-compiler match-beginning 1) | |
3028 | (byte-defop-compiler match-end 1) | |
3029 | (byte-defop-compiler upcase 1) | |
3030 | (byte-defop-compiler downcase 1) | |
3031 | (byte-defop-compiler string= 2) | |
3032 | (byte-defop-compiler string< 2) | |
3033 | (byte-defop-compiler (string-equal byte-string=) 2) | |
3034 | (byte-defop-compiler (string-lessp byte-string<) 2) | |
3035 | (byte-defop-compiler equal 2) | |
3036 | (byte-defop-compiler nthcdr 2) | |
3037 | (byte-defop-compiler elt 2) | |
3038 | (byte-defop-compiler member 2) | |
3039 | (byte-defop-compiler assq 2) | |
3040 | (byte-defop-compiler (rplaca byte-setcar) 2) | |
3041 | (byte-defop-compiler (rplacd byte-setcdr) 2) | |
3042 | (byte-defop-compiler setcar 2) | |
3043 | (byte-defop-compiler setcdr 2) | |
3044 | (byte-defop-compiler buffer-substring 2) | |
3045 | (byte-defop-compiler delete-region 2) | |
3046 | (byte-defop-compiler narrow-to-region 2) | |
3047 | (byte-defop-compiler (% byte-rem) 2) | |
1c393159 JB |
3048 | (byte-defop-compiler aset 3) |
3049 | ||
3050 | (byte-defop-compiler max byte-compile-associative) | |
3051 | (byte-defop-compiler min byte-compile-associative) | |
3052 | (byte-defop-compiler (+ byte-plus) byte-compile-associative) | |
eef899a9 | 3053 | (byte-defop-compiler (* byte-mult) byte-compile-associative) |
1c393159 | 3054 | |
eef899a9 | 3055 | ;;####(byte-defop-compiler move-to-column 1) |
1c393159 JB |
3056 | (byte-defop-compiler-1 interactive byte-compile-noop) |
3057 | ||
3058 | \f | |
3059 | (defun byte-compile-subr-wrong-args (form n) | |
ccb3c8de | 3060 | (byte-compile-set-symbol-position (car form)) |
1d5c17c0 | 3061 | (byte-compile-warn "`%s' called with %d arg%s, but requires %s" |
1c393159 JB |
3062 | (car form) (length (cdr form)) |
3063 | (if (= 1 (length (cdr form))) "" "s") n) | |
3064 | ;; get run-time wrong-number-of-args error. | |
3065 | (byte-compile-normal-call form)) | |
3066 | ||
3067 | (defun byte-compile-no-args (form) | |
3068 | (if (not (= (length form) 1)) | |
3069 | (byte-compile-subr-wrong-args form "none") | |
3070 | (byte-compile-out (get (car form) 'byte-opcode) 0))) | |
3071 | ||
3072 | (defun byte-compile-one-arg (form) | |
3073 | (if (not (= (length form) 2)) | |
3074 | (byte-compile-subr-wrong-args form 1) | |
3075 | (byte-compile-form (car (cdr form))) ;; Push the argument | |
3076 | (byte-compile-out (get (car form) 'byte-opcode) 0))) | |
3077 | ||
3078 | (defun byte-compile-two-args (form) | |
3079 | (if (not (= (length form) 3)) | |
3080 | (byte-compile-subr-wrong-args form 2) | |
3081 | (byte-compile-form (car (cdr form))) ;; Push the arguments | |
3082 | (byte-compile-form (nth 2 form)) | |
3083 | (byte-compile-out (get (car form) 'byte-opcode) 0))) | |
3084 | ||
3085 | (defun byte-compile-three-args (form) | |
3086 | (if (not (= (length form) 4)) | |
3087 | (byte-compile-subr-wrong-args form 3) | |
3088 | (byte-compile-form (car (cdr form))) ;; Push the arguments | |
3089 | (byte-compile-form (nth 2 form)) | |
3090 | (byte-compile-form (nth 3 form)) | |
3091 | (byte-compile-out (get (car form) 'byte-opcode) 0))) | |
3092 | ||
3093 | (defun byte-compile-zero-or-one-arg (form) | |
3094 | (let ((len (length form))) | |
3095 | (cond ((= len 1) (byte-compile-one-arg (append form '(nil)))) | |
3096 | ((= len 2) (byte-compile-one-arg form)) | |
3097 | (t (byte-compile-subr-wrong-args form "0-1"))))) | |
3098 | ||
3099 | (defun byte-compile-one-or-two-args (form) | |
3100 | (let ((len (length form))) | |
3101 | (cond ((= len 2) (byte-compile-two-args (append form '(nil)))) | |
3102 | ((= len 3) (byte-compile-two-args form)) | |
3103 | (t (byte-compile-subr-wrong-args form "1-2"))))) | |
3104 | ||
3105 | (defun byte-compile-two-or-three-args (form) | |
3106 | (let ((len (length form))) | |
3107 | (cond ((= len 3) (byte-compile-three-args (append form '(nil)))) | |
3108 | ((= len 4) (byte-compile-three-args form)) | |
3109 | (t (byte-compile-subr-wrong-args form "2-3"))))) | |
3110 | ||
3111 | (defun byte-compile-noop (form) | |
3112 | (byte-compile-constant nil)) | |
3113 | ||
3114 | (defun byte-compile-discard () | |
3115 | (byte-compile-out 'byte-discard 0)) | |
3116 | ||
3117 | ||
3118 | ;; Compile a function that accepts one or more args and is right-associative. | |
c0f43df5 RS |
3119 | ;; We do it by left-associativity so that the operations |
3120 | ;; are done in the same order as in interpreted code. | |
10809e0f RS |
3121 | ;; We treat the one-arg case, as in (+ x), like (+ x 0). |
3122 | ;; in order to convert markers to numbers, and trigger expected errors. | |
1c393159 JB |
3123 | (defun byte-compile-associative (form) |
3124 | (if (cdr form) | |
c0f43df5 | 3125 | (let ((opcode (get (car form) 'byte-opcode)) |
24ae8da4 CY |
3126 | args) |
3127 | (if (and (< 3 (length form)) | |
3128 | (memq opcode (list (get '+ 'byte-opcode) | |
3129 | (get '* 'byte-opcode)))) | |
3130 | ;; Don't use binary operations for > 2 operands, as that | |
3131 | ;; may cause overflow/truncation in float operations. | |
3132 | (byte-compile-normal-call form) | |
3133 | (setq args (copy-sequence (cdr form))) | |
3134 | (byte-compile-form (car args)) | |
3135 | (setq args (cdr args)) | |
3136 | (or args (setq args '(0) | |
3137 | opcode (get '+ 'byte-opcode))) | |
3138 | (dolist (arg args) | |
3139 | (byte-compile-form arg) | |
3140 | (byte-compile-out opcode 0)))) | |
1c393159 JB |
3141 | (byte-compile-constant (eval form)))) |
3142 | ||
3143 | \f | |
3144 | ;; more complicated compiler macros | |
3145 | ||
ec448ae2 | 3146 | (byte-defop-compiler char-before) |
a746fb65 GM |
3147 | (byte-defop-compiler backward-char) |
3148 | (byte-defop-compiler backward-word) | |
1c393159 JB |
3149 | (byte-defop-compiler list) |
3150 | (byte-defop-compiler concat) | |
3151 | (byte-defop-compiler fset) | |
3152 | (byte-defop-compiler (indent-to-column byte-indent-to) byte-compile-indent-to) | |
3153 | (byte-defop-compiler indent-to) | |
3154 | (byte-defop-compiler insert) | |
3155 | (byte-defop-compiler-1 function byte-compile-function-form) | |
3156 | (byte-defop-compiler-1 - byte-compile-minus) | |
eef899a9 GM |
3157 | (byte-defop-compiler (/ byte-quo) byte-compile-quo) |
3158 | (byte-defop-compiler nconc) | |
1c393159 | 3159 | |
ec448ae2 GM |
3160 | (defun byte-compile-char-before (form) |
3161 | (cond ((= 2 (length form)) | |
a746fb65 GM |
3162 | (byte-compile-form (list 'char-after (if (numberp (nth 1 form)) |
3163 | (1- (nth 1 form)) | |
3164 | `(1- ,(nth 1 form)))))) | |
3165 | ((= 1 (length form)) | |
3166 | (byte-compile-form '(char-after (1- (point))))) | |
3167 | (t (byte-compile-subr-wrong-args form "0-1")))) | |
3168 | ||
3169 | ;; backward-... ==> forward-... with negated argument. | |
3170 | (defun byte-compile-backward-char (form) | |
3171 | (cond ((= 2 (length form)) | |
3172 | (byte-compile-form (list 'forward-char (if (numberp (nth 1 form)) | |
3173 | (- (nth 1 form)) | |
3174 | `(- ,(nth 1 form)))))) | |
3175 | ((= 1 (length form)) | |
3176 | (byte-compile-form '(forward-char -1))) | |
3177 | (t (byte-compile-subr-wrong-args form "0-1")))) | |
3178 | ||
3179 | (defun byte-compile-backward-word (form) | |
3180 | (cond ((= 2 (length form)) | |
3181 | (byte-compile-form (list 'forward-word (if (numberp (nth 1 form)) | |
3182 | (- (nth 1 form)) | |
3183 | `(- ,(nth 1 form)))))) | |
3184 | ((= 1 (length form)) | |
3185 | (byte-compile-form '(forward-word -1))) | |
3186 | (t (byte-compile-subr-wrong-args form "0-1")))) | |
ec448ae2 | 3187 | |
1c393159 JB |
3188 | (defun byte-compile-list (form) |
3189 | (let ((count (length (cdr form)))) | |
3190 | (cond ((= count 0) | |
3191 | (byte-compile-constant nil)) | |
3192 | ((< count 5) | |
ed62683d | 3193 | (mapc 'byte-compile-form (cdr form)) |
1c393159 JB |
3194 | (byte-compile-out |
3195 | (aref [byte-list1 byte-list2 byte-list3 byte-list4] (1- count)) 0)) | |
e5c89ce9 | 3196 | ((< count 256) |
ed62683d | 3197 | (mapc 'byte-compile-form (cdr form)) |
1c393159 JB |
3198 | (byte-compile-out 'byte-listN count)) |
3199 | (t (byte-compile-normal-call form))))) | |
3200 | ||
3201 | (defun byte-compile-concat (form) | |
3202 | (let ((count (length (cdr form)))) | |
3203 | (cond ((and (< 1 count) (< count 5)) | |
ed62683d | 3204 | (mapc 'byte-compile-form (cdr form)) |
1c393159 JB |
3205 | (byte-compile-out |
3206 | (aref [byte-concat2 byte-concat3 byte-concat4] (- count 2)) | |
3207 | 0)) | |
3208 | ;; Concat of one arg is not a no-op if arg is not a string. | |
3209 | ((= count 0) | |
3210 | (byte-compile-form "")) | |
e5c89ce9 | 3211 | ((< count 256) |
ed62683d | 3212 | (mapc 'byte-compile-form (cdr form)) |
1c393159 JB |
3213 | (byte-compile-out 'byte-concatN count)) |
3214 | ((byte-compile-normal-call form))))) | |
3215 | ||
3216 | (defun byte-compile-minus (form) | |
24ae8da4 CY |
3217 | (let ((len (length form))) |
3218 | (cond | |
3219 | ((= 1 len) (byte-compile-constant 0)) | |
3220 | ((= 2 len) | |
3221 | (byte-compile-form (cadr form)) | |
3222 | (byte-compile-out 'byte-negate 0)) | |
2b9c3b12 | 3223 | ((= 3 len) |
24ae8da4 CY |
3224 | (byte-compile-form (nth 1 form)) |
3225 | (byte-compile-form (nth 2 form)) | |
3226 | (byte-compile-out 'byte-diff 0)) | |
3227 | ;; Don't use binary operations for > 2 operands, as that may | |
3228 | ;; cause overflow/truncation in float operations. | |
3229 | (t (byte-compile-normal-call form))))) | |
1c393159 JB |
3230 | |
3231 | (defun byte-compile-quo (form) | |
3232 | (let ((len (length form))) | |
3233 | (cond ((<= len 2) | |
3234 | (byte-compile-subr-wrong-args form "2 or more")) | |
24ae8da4 CY |
3235 | ((= len 3) |
3236 | (byte-compile-two-args form)) | |
1c393159 | 3237 | (t |
24ae8da4 CY |
3238 | ;; Don't use binary operations for > 2 operands, as that |
3239 | ;; may cause overflow/truncation in float operations. | |
3240 | (byte-compile-normal-call form))))) | |
1c393159 JB |
3241 | |
3242 | (defun byte-compile-nconc (form) | |
3243 | (let ((len (length form))) | |
3244 | (cond ((= len 1) | |
3245 | (byte-compile-constant nil)) | |
3246 | ((= len 2) | |
3247 | ;; nconc of one arg is a noop, even if that arg isn't a list. | |
3248 | (byte-compile-form (nth 1 form))) | |
3249 | (t | |
3250 | (byte-compile-form (car (setq form (cdr form)))) | |
3251 | (while (setq form (cdr form)) | |
3252 | (byte-compile-form (car form)) | |
3253 | (byte-compile-out 'byte-nconc 0)))))) | |
3254 | ||
3255 | (defun byte-compile-fset (form) | |
3256 | ;; warn about forms like (fset 'foo '(lambda () ...)) | |
3257 | ;; (where the lambda expression is non-trivial...) | |
3258 | (let ((fn (nth 2 form)) | |
3259 | body) | |
3260 | (if (and (eq (car-safe fn) 'quote) | |
3261 | (eq (car-safe (setq fn (nth 1 fn))) 'lambda)) | |
3262 | (progn | |
3263 | (setq body (cdr (cdr fn))) | |
3264 | (if (stringp (car body)) (setq body (cdr body))) | |
3265 | (if (eq 'interactive (car-safe (car body))) (setq body (cdr body))) | |
3266 | (if (and (consp (car body)) | |
3267 | (not (eq 'byte-code (car (car body))))) | |
3268 | (byte-compile-warn | |
1d5c17c0 | 3269 | "A quoted lambda form is the second argument of `fset'. This is probably |
1c393159 JB |
3270 | not what you want, as that lambda cannot be compiled. Consider using |
3271 | the syntax (function (lambda (...) ...)) instead."))))) | |
3272 | (byte-compile-two-args form)) | |
3273 | ||
3274 | (defun byte-compile-funarg (form) | |
3275 | ;; (mapcar '(lambda (x) ..) ..) ==> (mapcar (function (lambda (x) ..)) ..) | |
eb8c3be9 | 3276 | ;; for cases where it's guaranteed that first arg will be used as a lambda. |
1c393159 JB |
3277 | (byte-compile-normal-call |
3278 | (let ((fn (nth 1 form))) | |
3279 | (if (and (eq (car-safe fn) 'quote) | |
3280 | (eq (car-safe (nth 1 fn)) 'lambda)) | |
3281 | (cons (car form) | |
3282 | (cons (cons 'function (cdr fn)) | |
3283 | (cdr (cdr form)))) | |
3284 | form)))) | |
3285 | ||
5a6037bb RS |
3286 | (defun byte-compile-funarg-2 (form) |
3287 | ;; (sort ... '(lambda (x) ..)) ==> (sort ... (function (lambda (x) ..))) | |
3288 | ;; for cases where it's guaranteed that second arg will be used as a lambda. | |
3289 | (byte-compile-normal-call | |
3290 | (let ((fn (nth 2 form))) | |
3291 | (if (and (eq (car-safe fn) 'quote) | |
3292 | (eq (car-safe (nth 1 fn)) 'lambda)) | |
3293 | (cons (car form) | |
3294 | (cons (nth 1 form) | |
3295 | (cons (cons 'function (cdr fn)) | |
3296 | (cdr (cdr (cdr form)))))) | |
3297 | form)))) | |
3298 | ||
1c393159 JB |
3299 | ;; (function foo) must compile like 'foo, not like (symbol-function 'foo). |
3300 | ;; Otherwise it will be incompatible with the interpreter, | |
3301 | ;; and (funcall (function foo)) will lose with autoloads. | |
3302 | ||
3303 | (defun byte-compile-function-form (form) | |
3304 | (byte-compile-constant | |
3305 | (cond ((symbolp (nth 1 form)) | |
3306 | (nth 1 form)) | |
1c393159 JB |
3307 | ((byte-compile-lambda (nth 1 form)))))) |
3308 | ||
3309 | (defun byte-compile-indent-to (form) | |
3310 | (let ((len (length form))) | |
3311 | (cond ((= len 2) | |
3312 | (byte-compile-form (car (cdr form))) | |
3313 | (byte-compile-out 'byte-indent-to 0)) | |
3314 | ((= len 3) | |
3315 | ;; no opcode for 2-arg case. | |
3316 | (byte-compile-normal-call form)) | |
3317 | (t | |
3318 | (byte-compile-subr-wrong-args form "1-2"))))) | |
3319 | ||
3320 | (defun byte-compile-insert (form) | |
3321 | (cond ((null (cdr form)) | |
3322 | (byte-compile-constant nil)) | |
e5c89ce9 | 3323 | ((<= (length form) 256) |
ed62683d | 3324 | (mapc 'byte-compile-form (cdr form)) |
1c393159 JB |
3325 | (if (cdr (cdr form)) |
3326 | (byte-compile-out 'byte-insertN (length (cdr form))) | |
3327 | (byte-compile-out 'byte-insert 0))) | |
3328 | ((memq t (mapcar 'consp (cdr (cdr form)))) | |
3329 | (byte-compile-normal-call form)) | |
3330 | ;; We can split it; there is no function call after inserting 1st arg. | |
3331 | (t | |
3332 | (while (setq form (cdr form)) | |
3333 | (byte-compile-form (car form)) | |
3334 | (byte-compile-out 'byte-insert 0) | |
3335 | (if (cdr form) | |
3336 | (byte-compile-discard)))))) | |
3337 | ||
1c393159 JB |
3338 | \f |
3339 | (byte-defop-compiler-1 setq) | |
3340 | (byte-defop-compiler-1 setq-default) | |
3341 | (byte-defop-compiler-1 quote) | |
3342 | (byte-defop-compiler-1 quote-form) | |
3343 | ||
3344 | (defun byte-compile-setq (form) | |
c2768569 GM |
3345 | (let ((bytecomp-args (cdr form))) |
3346 | (if bytecomp-args | |
3347 | (while bytecomp-args | |
3348 | (byte-compile-form (car (cdr bytecomp-args))) | |
3349 | (or for-effect (cdr (cdr bytecomp-args)) | |
1c393159 | 3350 | (byte-compile-out 'byte-dup 0)) |
c2768569 GM |
3351 | (byte-compile-variable-ref 'byte-varset (car bytecomp-args)) |
3352 | (setq bytecomp-args (cdr (cdr bytecomp-args)))) | |
1c393159 JB |
3353 | ;; (setq), with no arguments. |
3354 | (byte-compile-form nil for-effect)) | |
3355 | (setq for-effect nil))) | |
3356 | ||
3357 | (defun byte-compile-setq-default (form) | |
9ae0c310 SM |
3358 | (setq form (cdr form)) |
3359 | (if (> (length form) 2) | |
3360 | (let ((setters ())) | |
3361 | (while (consp form) | |
3362 | (push `(setq-default ,(pop form) ,(pop form)) setters)) | |
3363 | (byte-compile-form (cons 'progn (nreverse setters)))) | |
3364 | (let ((var (car form))) | |
3365 | (and (or (not (symbolp var)) | |
3366 | (byte-compile-const-symbol-p var t)) | |
3367 | (byte-compile-warning-enabled-p 'constants) | |
3368 | (byte-compile-warn | |
3369 | "variable assignment to %s `%s'" | |
3370 | (if (symbolp var) "constant" "nonvariable") | |
3371 | (prin1-to-string var))) | |
3372 | (byte-compile-normal-call `(set-default ',var ,@(cdr form)))))) | |
3373 | ||
3374 | (byte-defop-compiler-1 set-default) | |
3375 | (defun byte-compile-set-default (form) | |
3376 | (let ((varexp (car-safe (cdr-safe form)))) | |
3377 | (if (eq (car-safe varexp) 'quote) | |
3378 | ;; If the varexp is constant, compile it as a setq-default | |
3379 | ;; so we get more warnings. | |
3380 | (byte-compile-setq-default `(setq-default ,(car-safe (cdr varexp)) | |
3381 | ,@(cddr form))) | |
3382 | (byte-compile-normal-call form)))) | |
1c393159 JB |
3383 | |
3384 | (defun byte-compile-quote (form) | |
3385 | (byte-compile-constant (car (cdr form)))) | |
3386 | ||
3387 | (defun byte-compile-quote-form (form) | |
3388 | (byte-compile-constant (byte-compile-top-level (nth 1 form)))) | |
3389 | ||
3390 | \f | |
3391 | ;;; control structures | |
3392 | ||
c2768569 GM |
3393 | (defun byte-compile-body (bytecomp-body &optional for-effect) |
3394 | (while (cdr bytecomp-body) | |
3395 | (byte-compile-form (car bytecomp-body) t) | |
3396 | (setq bytecomp-body (cdr bytecomp-body))) | |
3397 | (byte-compile-form (car bytecomp-body) for-effect)) | |
1c393159 | 3398 | |
c2768569 GM |
3399 | (defsubst byte-compile-body-do-effect (bytecomp-body) |
3400 | (byte-compile-body bytecomp-body for-effect) | |
1c393159 JB |
3401 | (setq for-effect nil)) |
3402 | ||
52799cb8 | 3403 | (defsubst byte-compile-form-do-effect (form) |
1c393159 JB |
3404 | (byte-compile-form form for-effect) |
3405 | (setq for-effect nil)) | |
3406 | ||
3407 | (byte-defop-compiler-1 inline byte-compile-progn) | |
3408 | (byte-defop-compiler-1 progn) | |
3409 | (byte-defop-compiler-1 prog1) | |
3410 | (byte-defop-compiler-1 prog2) | |
3411 | (byte-defop-compiler-1 if) | |
3412 | (byte-defop-compiler-1 cond) | |
3413 | (byte-defop-compiler-1 and) | |
3414 | (byte-defop-compiler-1 or) | |
3415 | (byte-defop-compiler-1 while) | |
3416 | (byte-defop-compiler-1 funcall) | |
3417 | (byte-defop-compiler-1 apply byte-compile-funarg) | |
3418 | (byte-defop-compiler-1 mapcar byte-compile-funarg) | |
3419 | (byte-defop-compiler-1 mapatoms byte-compile-funarg) | |
3420 | (byte-defop-compiler-1 mapconcat byte-compile-funarg) | |
28bb2cef | 3421 | (byte-defop-compiler-1 mapc byte-compile-funarg) |
def9389a DL |
3422 | (byte-defop-compiler-1 maphash byte-compile-funarg) |
3423 | (byte-defop-compiler-1 map-char-table byte-compile-funarg) | |
351697be DL |
3424 | (byte-defop-compiler-1 map-char-table byte-compile-funarg-2) |
3425 | ;; map-charset-chars should be funarg but has optional third arg | |
5a6037bb | 3426 | (byte-defop-compiler-1 sort byte-compile-funarg-2) |
1c393159 JB |
3427 | (byte-defop-compiler-1 let) |
3428 | (byte-defop-compiler-1 let*) | |
3429 | ||
3430 | (defun byte-compile-progn (form) | |
3431 | (byte-compile-body-do-effect (cdr form))) | |
3432 | ||
3433 | (defun byte-compile-prog1 (form) | |
3434 | (byte-compile-form-do-effect (car (cdr form))) | |
3435 | (byte-compile-body (cdr (cdr form)) t)) | |
3436 | ||
3437 | (defun byte-compile-prog2 (form) | |
3438 | (byte-compile-form (nth 1 form) t) | |
3439 | (byte-compile-form-do-effect (nth 2 form)) | |
3440 | (byte-compile-body (cdr (cdr (cdr form))) t)) | |
3441 | ||
3442 | (defmacro byte-compile-goto-if (cond discard tag) | |
1639b803 DL |
3443 | `(byte-compile-goto |
3444 | (if ,cond | |
3445 | (if ,discard 'byte-goto-if-not-nil 'byte-goto-if-not-nil-else-pop) | |
3446 | (if ,discard 'byte-goto-if-nil 'byte-goto-if-nil-else-pop)) | |
3447 | ,tag)) | |
1c393159 | 3448 | |
70f41945 DN |
3449 | ;; Return the list of items in CONDITION-PARAM that match PRED-LIST. |
3450 | ;; Only return items that are not in ONLY-IF-NOT-PRESENT. | |
516b3653 JB |
3451 | (defun byte-compile-find-bound-condition (condition-param |
3452 | pred-list | |
70f41945 DN |
3453 | &optional only-if-not-present) |
3454 | (let ((result nil) | |
3455 | (nth-one nil) | |
516b3653 | 3456 | (cond-list |
70f41945 DN |
3457 | (if (memq (car-safe condition-param) pred-list) |
3458 | ;; The condition appears by itself. | |
3459 | (list condition-param) | |
3460 | ;; If the condition is an `and', look for matches among the | |
3461 | ;; `and' arguments. | |
3462 | (when (eq 'and (car-safe condition-param)) | |
3463 | (cdr condition-param))))) | |
516b3653 | 3464 | |
70f41945 DN |
3465 | (dolist (crt cond-list) |
3466 | (when (and (memq (car-safe crt) pred-list) | |
3467 | (eq 'quote (car-safe (setq nth-one (nth 1 crt)))) | |
3468 | ;; Ignore if the symbol is already on the unresolved | |
3469 | ;; list. | |
3470 | (not (assq (nth 1 nth-one) ; the relevant symbol | |
3471 | only-if-not-present))) | |
3472 | (push (nth 1 (nth 1 crt)) result))) | |
3473 | result)) | |
3474 | ||
6b61353c KH |
3475 | (defmacro byte-compile-maybe-guarded (condition &rest body) |
3476 | "Execute forms in BODY, potentially guarded by CONDITION. | |
82a726b4 | 3477 | CONDITION is a variable whose value is a test in an `if' or `cond'. |
d6dc41d5 GM |
3478 | BODY is the code to compile in the first arm of the if or the body of |
3479 | the cond clause. If CONDITION's value is of the form (fboundp 'foo) | |
ad50a502 | 3480 | or (boundp 'foo), the relevant warnings from BODY about foo's |
8480fc7c | 3481 | being undefined (or obsolete) will be suppressed. |
82a726b4 | 3482 | |
b2e948ee | 3483 | If CONDITION's value is (not (featurep 'emacs)) or (featurep 'xemacs), |
ad50a502 | 3484 | that suppresses all warnings during execution of BODY." |
6b61353c | 3485 | (declare (indent 1) (debug t)) |
516b3653 JB |
3486 | `(let* ((fbound-list (byte-compile-find-bound-condition |
3487 | ,condition (list 'fboundp) | |
70f41945 | 3488 | byte-compile-unresolved-functions)) |
516b3653 | 3489 | (bound-list (byte-compile-find-bound-condition |
70f41945 | 3490 | ,condition (list 'boundp 'default-boundp))) |
6b61353c KH |
3491 | ;; Maybe add to the bound list. |
3492 | (byte-compile-bound-variables | |
70f41945 DN |
3493 | (if bound-list |
3494 | (append bound-list byte-compile-bound-variables) | |
86408b24 | 3495 | byte-compile-bound-variables))) |
82a726b4 | 3496 | (unwind-protect |
8480fc7c GM |
3497 | ;; If things not being bound at all is ok, so must them being obsolete. |
3498 | ;; Note that we add to the existing lists since Tramp (ab)uses | |
3499 | ;; this feature. | |
3500 | (let ((byte-compile-not-obsolete-vars | |
3501 | (append byte-compile-not-obsolete-vars bound-list)) | |
3502 | (byte-compile-not-obsolete-funcs | |
3503 | (append byte-compile-not-obsolete-funcs fbound-list))) | |
3504 | ,@body) | |
82a726b4 | 3505 | ;; Maybe remove the function symbol from the unresolved list. |
70f41945 DN |
3506 | (dolist (fbound fbound-list) |
3507 | (when fbound | |
82a726b4 RS |
3508 | (setq byte-compile-unresolved-functions |
3509 | (delq (assq fbound byte-compile-unresolved-functions) | |
70f41945 | 3510 | byte-compile-unresolved-functions))))))) |
6b61353c | 3511 | |
1c393159 JB |
3512 | (defun byte-compile-if (form) |
3513 | (byte-compile-form (car (cdr form))) | |
b8234c84 DL |
3514 | ;; Check whether we have `(if (fboundp ...' or `(if (boundp ...' |
3515 | ;; and avoid warnings about the relevent symbols in the consequent. | |
6b61353c KH |
3516 | (let ((clause (nth 1 form)) |
3517 | (donetag (byte-compile-make-tag))) | |
b8234c84 DL |
3518 | (if (null (nthcdr 3 form)) |
3519 | ;; No else-forms | |
3520 | (progn | |
3521 | (byte-compile-goto-if nil for-effect donetag) | |
6b61353c | 3522 | (byte-compile-maybe-guarded clause |
b8234c84 | 3523 | (byte-compile-form (nth 2 form) for-effect)) |
b8234c84 DL |
3524 | (byte-compile-out-tag donetag)) |
3525 | (let ((elsetag (byte-compile-make-tag))) | |
3526 | (byte-compile-goto 'byte-goto-if-nil elsetag) | |
6b61353c KH |
3527 | (byte-compile-maybe-guarded clause |
3528 | (byte-compile-form (nth 2 form) for-effect)) | |
b8234c84 DL |
3529 | (byte-compile-goto 'byte-goto donetag) |
3530 | (byte-compile-out-tag elsetag) | |
300f994a RS |
3531 | (byte-compile-maybe-guarded (list 'not clause) |
3532 | (byte-compile-body (cdr (cdr (cdr form))) for-effect)) | |
b8234c84 | 3533 | (byte-compile-out-tag donetag)))) |
1c393159 JB |
3534 | (setq for-effect nil)) |
3535 | ||
3536 | (defun byte-compile-cond (clauses) | |
3537 | (let ((donetag (byte-compile-make-tag)) | |
3538 | nexttag clause) | |
3539 | (while (setq clauses (cdr clauses)) | |
3540 | (setq clause (car clauses)) | |
3541 | (cond ((or (eq (car clause) t) | |
3542 | (and (eq (car-safe (car clause)) 'quote) | |
3543 | (car-safe (cdr-safe (car clause))))) | |
3544 | ;; Unconditional clause | |
3545 | (setq clause (cons t clause) | |
3546 | clauses nil)) | |
3547 | ((cdr clauses) | |
3548 | (byte-compile-form (car clause)) | |
3549 | (if (null (cdr clause)) | |
3550 | ;; First clause is a singleton. | |
3551 | (byte-compile-goto-if t for-effect donetag) | |
82a726b4 RS |
3552 | (setq nexttag (byte-compile-make-tag)) |
3553 | (byte-compile-goto 'byte-goto-if-nil nexttag) | |
3554 | (byte-compile-maybe-guarded (car clause) | |
3555 | (byte-compile-body (cdr clause) for-effect)) | |
3556 | (byte-compile-goto 'byte-goto donetag) | |
3557 | (byte-compile-out-tag nexttag))))) | |
1c393159 | 3558 | ;; Last clause |
6b61353c KH |
3559 | (let ((guard (car clause))) |
3560 | (and (cdr clause) (not (eq guard t)) | |
3561 | (progn (byte-compile-form guard) | |
3562 | (byte-compile-goto-if nil for-effect donetag) | |
3563 | (setq clause (cdr clause)))) | |
3564 | (byte-compile-maybe-guarded guard | |
3565 | (byte-compile-body-do-effect clause))) | |
1c393159 JB |
3566 | (byte-compile-out-tag donetag))) |
3567 | ||
3568 | (defun byte-compile-and (form) | |
3569 | (let ((failtag (byte-compile-make-tag)) | |
c2768569 GM |
3570 | (bytecomp-args (cdr form))) |
3571 | (if (null bytecomp-args) | |
1c393159 | 3572 | (byte-compile-form-do-effect t) |
c2768569 | 3573 | (byte-compile-and-recursion bytecomp-args failtag)))) |
8877fa6f | 3574 | |
83b0af6e | 3575 | ;; Handle compilation of a nontrivial `and' call. |
8877fa6f RS |
3576 | ;; We use tail recursion so we can use byte-compile-maybe-guarded. |
3577 | (defun byte-compile-and-recursion (rest failtag) | |
3578 | (if (cdr rest) | |
3579 | (progn | |
3580 | (byte-compile-form (car rest)) | |
1c393159 | 3581 | (byte-compile-goto-if nil for-effect failtag) |
8877fa6f RS |
3582 | (byte-compile-maybe-guarded (car rest) |
3583 | (byte-compile-and-recursion (cdr rest) failtag))) | |
3584 | (byte-compile-form-do-effect (car rest)) | |
3585 | (byte-compile-out-tag failtag))) | |
1c393159 JB |
3586 | |
3587 | (defun byte-compile-or (form) | |
3588 | (let ((wintag (byte-compile-make-tag)) | |
c2768569 GM |
3589 | (bytecomp-args (cdr form))) |
3590 | (if (null bytecomp-args) | |
1c393159 | 3591 | (byte-compile-form-do-effect nil) |
c2768569 | 3592 | (byte-compile-or-recursion bytecomp-args wintag)))) |
83b0af6e RS |
3593 | |
3594 | ;; Handle compilation of a nontrivial `or' call. | |
3595 | ;; We use tail recursion so we can use byte-compile-maybe-guarded. | |
3596 | (defun byte-compile-or-recursion (rest wintag) | |
3597 | (if (cdr rest) | |
3598 | (progn | |
3599 | (byte-compile-form (car rest)) | |
1c393159 | 3600 | (byte-compile-goto-if t for-effect wintag) |
83b0af6e RS |
3601 | (byte-compile-maybe-guarded (list 'not (car rest)) |
3602 | (byte-compile-or-recursion (cdr rest) wintag))) | |
3603 | (byte-compile-form-do-effect (car rest)) | |
3604 | (byte-compile-out-tag wintag))) | |
1c393159 JB |
3605 | |
3606 | (defun byte-compile-while (form) | |
3607 | (let ((endtag (byte-compile-make-tag)) | |
3608 | (looptag (byte-compile-make-tag))) | |
3609 | (byte-compile-out-tag looptag) | |
3610 | (byte-compile-form (car (cdr form))) | |
3611 | (byte-compile-goto-if nil for-effect endtag) | |
3612 | (byte-compile-body (cdr (cdr form)) t) | |
3613 | (byte-compile-goto 'byte-goto looptag) | |
3614 | (byte-compile-out-tag endtag) | |
3615 | (setq for-effect nil))) | |
3616 | ||
3617 | (defun byte-compile-funcall (form) | |
ed62683d | 3618 | (mapc 'byte-compile-form (cdr form)) |
1c393159 JB |
3619 | (byte-compile-out 'byte-call (length (cdr (cdr form))))) |
3620 | ||
3621 | ||
3622 | (defun byte-compile-let (form) | |
3623 | ;; First compute the binding values in the old scope. | |
3624 | (let ((varlist (car (cdr form)))) | |
6c2161c4 SM |
3625 | (dolist (var varlist) |
3626 | (if (consp var) | |
3627 | (byte-compile-form (car (cdr var))) | |
3628 | (byte-compile-push-constant nil)))) | |
1c393159 JB |
3629 | (let ((byte-compile-bound-variables byte-compile-bound-variables) ;new scope |
3630 | (varlist (reverse (car (cdr form))))) | |
6c2161c4 | 3631 | (dolist (var varlist) |
8480fc7c GM |
3632 | (byte-compile-variable-ref 'byte-varbind |
3633 | (if (consp var) (car var) var))) | |
1c393159 JB |
3634 | (byte-compile-body-do-effect (cdr (cdr form))) |
3635 | (byte-compile-out 'byte-unbind (length (car (cdr form)))))) | |
3636 | ||
3637 | (defun byte-compile-let* (form) | |
3638 | (let ((byte-compile-bound-variables byte-compile-bound-variables) ;new scope | |
3639 | (varlist (copy-sequence (car (cdr form))))) | |
6c2161c4 SM |
3640 | (dolist (var varlist) |
3641 | (if (atom var) | |
1c393159 | 3642 | (byte-compile-push-constant nil) |
6c2161c4 SM |
3643 | (byte-compile-form (car (cdr var))) |
3644 | (setq var (car var))) | |
3645 | (byte-compile-variable-ref 'byte-varbind var)) | |
1c393159 JB |
3646 | (byte-compile-body-do-effect (cdr (cdr form))) |
3647 | (byte-compile-out 'byte-unbind (length (car (cdr form)))))) | |
3648 | ||
3649 | ||
3650 | (byte-defop-compiler-1 /= byte-compile-negated) | |
3651 | (byte-defop-compiler-1 atom byte-compile-negated) | |
3652 | (byte-defop-compiler-1 nlistp byte-compile-negated) | |
3653 | ||
3654 | (put '/= 'byte-compile-negated-op '=) | |
3655 | (put 'atom 'byte-compile-negated-op 'consp) | |
3656 | (put 'nlistp 'byte-compile-negated-op 'listp) | |
3657 | ||
3658 | (defun byte-compile-negated (form) | |
3659 | (byte-compile-form-do-effect (byte-compile-negation-optimizer form))) | |
3660 | ||
3661 | ;; Even when optimization is off, /= is optimized to (not (= ...)). | |
3662 | (defun byte-compile-negation-optimizer (form) | |
3663 | ;; an optimizer for forms where <form1> is less efficient than (not <form2>) | |
ccb3c8de | 3664 | (byte-compile-set-symbol-position (car form)) |
1c393159 JB |
3665 | (list 'not |
3666 | (cons (or (get (car form) 'byte-compile-negated-op) | |
3667 | (error | |
52799cb8 | 3668 | "Compiler error: `%s' has no `byte-compile-negated-op' property" |
1c393159 JB |
3669 | (car form))) |
3670 | (cdr form)))) | |
3671 | \f | |
3672 | ;;; other tricky macro-like special-forms | |
3673 | ||
3674 | (byte-defop-compiler-1 catch) | |
3675 | (byte-defop-compiler-1 unwind-protect) | |
3676 | (byte-defop-compiler-1 condition-case) | |
3677 | (byte-defop-compiler-1 save-excursion) | |
f3e472b0 | 3678 | (byte-defop-compiler-1 save-current-buffer) |
1c393159 JB |
3679 | (byte-defop-compiler-1 save-restriction) |
3680 | (byte-defop-compiler-1 save-window-excursion) | |
3681 | (byte-defop-compiler-1 with-output-to-temp-buffer) | |
6e8d0db7 | 3682 | (byte-defop-compiler-1 track-mouse) |
1c393159 JB |
3683 | |
3684 | (defun byte-compile-catch (form) | |
3685 | (byte-compile-form (car (cdr form))) | |
3686 | (byte-compile-push-constant | |
3687 | (byte-compile-top-level (cons 'progn (cdr (cdr form))) for-effect)) | |
3688 | (byte-compile-out 'byte-catch 0)) | |
3689 | ||
3690 | (defun byte-compile-unwind-protect (form) | |
3691 | (byte-compile-push-constant | |
3692 | (byte-compile-top-level-body (cdr (cdr form)) t)) | |
3693 | (byte-compile-out 'byte-unwind-protect 0) | |
3694 | (byte-compile-form-do-effect (car (cdr form))) | |
3695 | (byte-compile-out 'byte-unbind 1)) | |
3696 | ||
6e8d0db7 | 3697 | (defun byte-compile-track-mouse (form) |
d7846e08 | 3698 | (byte-compile-form |
6c2161c4 SM |
3699 | `(funcall '(lambda nil |
3700 | (track-mouse ,@(byte-compile-top-level-body (cdr form))))))) | |
6e8d0db7 | 3701 | |
1c393159 JB |
3702 | (defun byte-compile-condition-case (form) |
3703 | (let* ((var (nth 1 form)) | |
3704 | (byte-compile-bound-variables | |
3705 | (if var (cons var byte-compile-bound-variables) | |
3706 | byte-compile-bound-variables))) | |
ccb3c8de CW |
3707 | (byte-compile-set-symbol-position 'condition-case) |
3708 | (unless (symbolp var) | |
3709 | (byte-compile-warn | |
1d5c17c0 | 3710 | "`%s' is not a variable-name or nil (in condition-case)" var)) |
1c393159 JB |
3711 | (byte-compile-push-constant var) |
3712 | (byte-compile-push-constant (byte-compile-top-level | |
3713 | (nth 2 form) for-effect)) | |
3714 | (let ((clauses (cdr (cdr (cdr form)))) | |
3715 | compiled-clauses) | |
3716 | (while clauses | |
e27c3564 JB |
3717 | (let* ((clause (car clauses)) |
3718 | (condition (car clause))) | |
2abcddce RS |
3719 | (cond ((not (or (symbolp condition) |
3720 | (and (listp condition) | |
3721 | (let ((syms condition) (ok t)) | |
3722 | (while syms | |
3723 | (if (not (symbolp (car syms))) | |
3724 | (setq ok nil)) | |
3725 | (setq syms (cdr syms))) | |
3726 | ok)))) | |
e27c3564 | 3727 | (byte-compile-warn |
1d5c17c0 | 3728 | "`%s' is not a condition name or list of such (in condition-case)" |
e27c3564 | 3729 | (prin1-to-string condition))) |
2abcddce RS |
3730 | ;; ((not (or (eq condition 't) |
3731 | ;; (and (stringp (get condition 'error-message)) | |
3732 | ;; (consp (get condition 'error-conditions))))) | |
3733 | ;; (byte-compile-warn | |
1d5c17c0 | 3734 | ;; "`%s' is not a known condition name (in condition-case)" |
2abcddce RS |
3735 | ;; condition)) |
3736 | ) | |
1c393159 | 3737 | (setq compiled-clauses |
e27c3564 | 3738 | (cons (cons condition |
1c393159 JB |
3739 | (byte-compile-top-level-body |
3740 | (cdr clause) for-effect)) | |
3741 | compiled-clauses))) | |
3742 | (setq clauses (cdr clauses))) | |
3743 | (byte-compile-push-constant (nreverse compiled-clauses))) | |
3744 | (byte-compile-out 'byte-condition-case 0))) | |
3745 | ||
3746 | ||
3747 | (defun byte-compile-save-excursion (form) | |
62a258a7 SM |
3748 | (if (and (eq 'set-buffer (car-safe (car-safe (cdr form)))) |
3749 | (byte-compile-warning-enabled-p 'suspicious)) | |
3ab4308b | 3750 | (byte-compile-warn "`save-excursion' defeated by `set-buffer'")) |
1c393159 JB |
3751 | (byte-compile-out 'byte-save-excursion 0) |
3752 | (byte-compile-body-do-effect (cdr form)) | |
3753 | (byte-compile-out 'byte-unbind 1)) | |
3754 | ||
3755 | (defun byte-compile-save-restriction (form) | |
3756 | (byte-compile-out 'byte-save-restriction 0) | |
3757 | (byte-compile-body-do-effect (cdr form)) | |
3758 | (byte-compile-out 'byte-unbind 1)) | |
3759 | ||
f3e472b0 RS |
3760 | (defun byte-compile-save-current-buffer (form) |
3761 | (byte-compile-out 'byte-save-current-buffer 0) | |
3762 | (byte-compile-body-do-effect (cdr form)) | |
3763 | (byte-compile-out 'byte-unbind 1)) | |
3764 | ||
1c393159 JB |
3765 | (defun byte-compile-save-window-excursion (form) |
3766 | (byte-compile-push-constant | |
3767 | (byte-compile-top-level-body (cdr form) for-effect)) | |
3768 | (byte-compile-out 'byte-save-window-excursion 0)) | |
3769 | ||
3770 | (defun byte-compile-with-output-to-temp-buffer (form) | |
3771 | (byte-compile-form (car (cdr form))) | |
3772 | (byte-compile-out 'byte-temp-output-buffer-setup 0) | |
3773 | (byte-compile-body (cdr (cdr form))) | |
3774 | (byte-compile-out 'byte-temp-output-buffer-show 0)) | |
1c393159 JB |
3775 | \f |
3776 | ;;; top-level forms elsewhere | |
3777 | ||
3778 | (byte-defop-compiler-1 defun) | |
3779 | (byte-defop-compiler-1 defmacro) | |
3780 | (byte-defop-compiler-1 defvar) | |
3781 | (byte-defop-compiler-1 defconst byte-compile-defvar) | |
3782 | (byte-defop-compiler-1 autoload) | |
3783 | (byte-defop-compiler-1 lambda byte-compile-lambda-form) | |
3784 | ||
3785 | (defun byte-compile-defun (form) | |
3786 | ;; This is not used for file-level defuns with doc strings. | |
ccb3c8de CW |
3787 | (if (symbolp (car form)) |
3788 | (byte-compile-set-symbol-position (car form)) | |
3789 | (byte-compile-set-symbol-position 'defun) | |
eadd6444 | 3790 | (error "defun name must be a symbol, not %s" (car form))) |
e5c89ce9 GM |
3791 | ;; We prefer to generate a defalias form so it will record the function |
3792 | ;; definition just like interpreting a defun. | |
3793 | (byte-compile-form | |
3794 | (list 'defalias | |
3795 | (list 'quote (nth 1 form)) | |
3796 | (byte-compile-byte-code-maker | |
3797 | (byte-compile-lambda (cdr (cdr form)) t))) | |
3798 | t) | |
1c393159 JB |
3799 | (byte-compile-constant (nth 1 form))) |
3800 | ||
3801 | (defun byte-compile-defmacro (form) | |
3802 | ;; This is not used for file-level defmacros with doc strings. | |
3803 | (byte-compile-body-do-effect | |
e3a6b82f SM |
3804 | (let ((decls (byte-compile-defmacro-declaration form)) |
3805 | (code (byte-compile-byte-code-maker | |
3806 | (byte-compile-lambda (cdr (cdr form)) t)))) | |
3807 | `((defalias ',(nth 1 form) | |
3808 | ,(if (eq (car-safe code) 'make-byte-code) | |
3809 | `(cons 'macro ,code) | |
3810 | `'(macro . ,(eval code)))) | |
3811 | ,@decls | |
3812 | ',(nth 1 form))))) | |
1c393159 JB |
3813 | |
3814 | (defun byte-compile-defvar (form) | |
3815 | ;; This is not used for file-level defvar/consts with doc strings. | |
4f1e9960 | 3816 | (when (and (symbolp (nth 1 form)) |
3fe6ef4e | 3817 | (not (string-match "[-*/:$]" (symbol-name (nth 1 form)))) |
4f1e9960 | 3818 | (byte-compile-warning-enabled-p 'lexical)) |
7a16788b | 3819 | (byte-compile-warn "global/dynamic var `%s' lacks a prefix" |
4f1e9960 | 3820 | (nth 1 form))) |
1bc20d83 GM |
3821 | (let ((fun (nth 0 form)) |
3822 | (var (nth 1 form)) | |
1c393159 JB |
3823 | (value (nth 2 form)) |
3824 | (string (nth 3 form))) | |
ccb3c8de | 3825 | (byte-compile-set-symbol-position fun) |
6c2161c4 SM |
3826 | (when (or (> (length form) 4) |
3827 | (and (eq fun 'defconst) (null (cddr form)))) | |
d0e07261 SM |
3828 | (let ((ncall (length (cdr form)))) |
3829 | (byte-compile-warn | |
1d5c17c0 | 3830 | "`%s' called with %d argument%s, but %s %s" |
d0e07261 SM |
3831 | fun ncall |
3832 | (if (= 1 ncall) "" "s") | |
3833 | (if (< ncall 2) "requires" "accepts only") | |
3834 | "2-3"))) | |
2aea6521 GM |
3835 | (push var byte-compile-bound-variables) |
3836 | (if (eq fun 'defconst) | |
3837 | (push var byte-compile-const-variables)) | |
1c393159 | 3838 | (byte-compile-body-do-effect |
1bc20d83 GM |
3839 | (list |
3840 | ;; Put the defined variable in this library's load-history entry | |
3841 | ;; just as a real defvar would, but only in top-level forms. | |
3614fc84 | 3842 | (when (and (cddr form) (null byte-compile-current-form)) |
1bc20d83 GM |
3843 | `(push ',var current-load-list)) |
3844 | (when (> (length form) 3) | |
3845 | (when (and string (not (stringp string))) | |
0028351d GM |
3846 | (byte-compile-warn "third arg to `%s %s' is not a string: %s" |
3847 | fun var string)) | |
1bc20d83 | 3848 | `(put ',var 'variable-documentation ,string)) |
fef3407e | 3849 | (if (cddr form) ; `value' provided |
8480fc7c | 3850 | (let ((byte-compile-not-obsolete-vars (list var))) |
6b61353c KH |
3851 | (if (eq fun 'defconst) |
3852 | ;; `defconst' sets `var' unconditionally. | |
3853 | (let ((tmp (make-symbol "defconst-tmp-var"))) | |
3854 | `(funcall '(lambda (,tmp) (defconst ,var ,tmp)) | |
3855 | ,value)) | |
3856 | ;; `defvar' sets `var' only when unbound. | |
3857 | `(if (not (default-boundp ',var)) (setq-default ,var ,value)))) | |
6c2161c4 SM |
3858 | (when (eq fun 'defconst) |
3859 | ;; This will signal an appropriate error at runtime. | |
3860 | `(eval ',form))) | |
1bc20d83 | 3861 | `',var)))) |
1c393159 JB |
3862 | |
3863 | (defun byte-compile-autoload (form) | |
ccb3c8de | 3864 | (byte-compile-set-symbol-position 'autoload) |
1c393159 JB |
3865 | (and (byte-compile-constp (nth 1 form)) |
3866 | (byte-compile-constp (nth 5 form)) | |
3867 | (eval (nth 5 form)) ; macro-p | |
3868 | (not (fboundp (eval (nth 1 form)))) | |
3869 | (byte-compile-warn | |
c5091f25 | 3870 | "The compiler ignores `autoload' except at top level. You should |
1c393159 JB |
3871 | probably put the autoload of the macro `%s' at top-level." |
3872 | (eval (nth 1 form)))) | |
3873 | (byte-compile-normal-call form)) | |
3874 | ||
c5091f25 | 3875 | ;; Lambdas in valid places are handled as special cases by various code. |
1c393159 JB |
3876 | ;; The ones that remain are errors. |
3877 | (defun byte-compile-lambda-form (form) | |
ccb3c8de | 3878 | (byte-compile-set-symbol-position 'lambda) |
1c393159 JB |
3879 | (error "`lambda' used as function name is invalid")) |
3880 | ||
5286a842 | 3881 | ;; Compile normally, but deal with warnings for the function being defined. |
977b50fb SM |
3882 | (put 'defalias 'byte-hunk-handler 'byte-compile-file-form-defalias) |
3883 | (defun byte-compile-file-form-defalias (form) | |
5286a842 RS |
3884 | (if (and (consp (cdr form)) (consp (nth 1 form)) |
3885 | (eq (car (nth 1 form)) 'quote) | |
3886 | (consp (cdr (nth 1 form))) | |
a7a7ddf1 RS |
3887 | (symbolp (nth 1 (nth 1 form)))) |
3888 | (let ((constant | |
3889 | (and (consp (nthcdr 2 form)) | |
3890 | (consp (nth 2 form)) | |
3891 | (eq (car (nth 2 form)) 'quote) | |
3892 | (consp (cdr (nth 2 form))) | |
3893 | (symbolp (nth 1 (nth 2 form)))))) | |
6c2161c4 | 3894 | (byte-compile-defalias-warn (nth 1 (nth 1 form))) |
977b50fb SM |
3895 | (push (cons (nth 1 (nth 1 form)) |
3896 | (if constant (nth 1 (nth 2 form)) t)) | |
3897 | byte-compile-function-environment))) | |
a2b3fdbf | 3898 | ;; We used to just do: (byte-compile-normal-call form) |
b7a5a208 SM |
3899 | ;; But it turns out that this fails to optimize the code. |
3900 | ;; So instead we now do the same as what other byte-hunk-handlers do, | |
3901 | ;; which is to call back byte-compile-file-form and then return nil. | |
3902 | ;; Except that we can't just call byte-compile-file-form since it would | |
3903 | ;; call us right back. | |
3904 | (byte-compile-keep-pending form) | |
3905 | ;; Return nil so the form is not output twice. | |
3906 | nil) | |
5286a842 RS |
3907 | |
3908 | ;; Turn off warnings about prior calls to the function being defalias'd. | |
3909 | ;; This could be smarter and compare those calls with | |
3910 | ;; the function it is being aliased to. | |
6c2161c4 | 3911 | (defun byte-compile-defalias-warn (new) |
5286a842 RS |
3912 | (let ((calls (assq new byte-compile-unresolved-functions))) |
3913 | (if calls | |
3914 | (setq byte-compile-unresolved-functions | |
3915 | (delq calls byte-compile-unresolved-functions))))) | |
3c9dc1cf RS |
3916 | |
3917 | (byte-defop-compiler-1 with-no-warnings byte-compile-no-warnings) | |
3918 | (defun byte-compile-no-warnings (form) | |
3919 | (let (byte-compile-warnings) | |
a4f66531 | 3920 | (byte-compile-form (cons 'progn (cdr form))))) |
01e4a4fa SM |
3921 | |
3922 | ;; Warn about misuses of make-variable-buffer-local. | |
49fec531 SM |
3923 | (byte-defop-compiler-1 make-variable-buffer-local |
3924 | byte-compile-make-variable-buffer-local) | |
01e4a4fa | 3925 | (defun byte-compile-make-variable-buffer-local (form) |
15ce9dcf | 3926 | (if (and (eq (car-safe (car-safe (cdr-safe form))) 'quote) |
cf637a34 | 3927 | (byte-compile-warning-enabled-p 'make-local)) |
01e4a4fa SM |
3928 | (byte-compile-warn |
3929 | "`make-variable-buffer-local' should be called at toplevel")) | |
3930 | (byte-compile-normal-call form)) | |
3931 | (put 'make-variable-buffer-local | |
3932 | 'byte-hunk-handler 'byte-compile-form-make-variable-buffer-local) | |
3933 | (defun byte-compile-form-make-variable-buffer-local (form) | |
3934 | (byte-compile-keep-pending form 'byte-compile-normal-call)) | |
3935 | ||
1c393159 JB |
3936 | \f |
3937 | ;;; tags | |
3938 | ||
3939 | ;; Note: Most operations will strip off the 'TAG, but it speeds up | |
3940 | ;; optimization to have the 'TAG as a part of the tag. | |
3941 | ;; Tags will be (TAG . (tag-number . stack-depth)). | |
3942 | (defun byte-compile-make-tag () | |
3943 | (list 'TAG (setq byte-compile-tag-number (1+ byte-compile-tag-number)))) | |
3944 | ||
3945 | ||
3946 | (defun byte-compile-out-tag (tag) | |
3947 | (setq byte-compile-output (cons tag byte-compile-output)) | |
3948 | (if (cdr (cdr tag)) | |
3949 | (progn | |
3950 | ;; ## remove this someday | |
3951 | (and byte-compile-depth | |
3952 | (not (= (cdr (cdr tag)) byte-compile-depth)) | |
52799cb8 | 3953 | (error "Compiler bug: depth conflict at tag %d" (car (cdr tag)))) |
1c393159 JB |
3954 | (setq byte-compile-depth (cdr (cdr tag)))) |
3955 | (setcdr (cdr tag) byte-compile-depth))) | |
3956 | ||
3957 | (defun byte-compile-goto (opcode tag) | |
6c2161c4 | 3958 | (push (cons opcode tag) byte-compile-output) |
1c393159 JB |
3959 | (setcdr (cdr tag) (if (memq opcode byte-goto-always-pop-ops) |
3960 | (1- byte-compile-depth) | |
3961 | byte-compile-depth)) | |
3962 | (setq byte-compile-depth (and (not (eq opcode 'byte-goto)) | |
3963 | (1- byte-compile-depth)))) | |
3964 | ||
3965 | (defun byte-compile-out (opcode offset) | |
6c2161c4 | 3966 | (push (cons opcode offset) byte-compile-output) |
1c393159 JB |
3967 | (cond ((eq opcode 'byte-call) |
3968 | (setq byte-compile-depth (- byte-compile-depth offset))) | |
3969 | ((eq opcode 'byte-return) | |
3970 | ;; This is actually an unnecessary case, because there should be | |
3971 | ;; no more opcodes behind byte-return. | |
3972 | (setq byte-compile-depth nil)) | |
3973 | (t | |
3974 | (setq byte-compile-depth (+ byte-compile-depth | |
3975 | (or (aref byte-stack+-info | |
3976 | (symbol-value opcode)) | |
3977 | (- (1- offset)))) | |
3978 | byte-compile-maxdepth (max byte-compile-depth | |
3979 | byte-compile-maxdepth)))) | |
52799cb8 | 3980 | ;;(if (< byte-compile-depth 0) (error "Compiler error: stack underflow")) |
1c393159 JB |
3981 | ) |
3982 | ||
3983 | \f | |
3984 | ;;; call tree stuff | |
3985 | ||
3986 | (defun byte-compile-annotate-call-tree (form) | |
3987 | (let (entry) | |
3988 | ;; annotate the current call | |
3989 | (if (setq entry (assq (car form) byte-compile-call-tree)) | |
3990 | (or (memq byte-compile-current-form (nth 1 entry)) ;callers | |
3991 | (setcar (cdr entry) | |
3992 | (cons byte-compile-current-form (nth 1 entry)))) | |
3993 | (setq byte-compile-call-tree | |
3994 | (cons (list (car form) (list byte-compile-current-form) nil) | |
3995 | byte-compile-call-tree))) | |
3996 | ;; annotate the current function | |
3997 | (if (setq entry (assq byte-compile-current-form byte-compile-call-tree)) | |
3998 | (or (memq (car form) (nth 2 entry)) ;called | |
3999 | (setcar (cdr (cdr entry)) | |
4000 | (cons (car form) (nth 2 entry)))) | |
4001 | (setq byte-compile-call-tree | |
4002 | (cons (list byte-compile-current-form nil (list (car form))) | |
4003 | byte-compile-call-tree))) | |
4004 | )) | |
4005 | ||
52799cb8 RS |
4006 | ;; Renamed from byte-compile-report-call-tree |
4007 | ;; to avoid interfering with completion of byte-compile-file. | |
fd5285f3 | 4008 | ;;;###autoload |
52799cb8 RS |
4009 | (defun display-call-tree (&optional filename) |
4010 | "Display a call graph of a specified file. | |
4011 | This lists which functions have been called, what functions called | |
4012 | them, and what functions they call. The list includes all functions | |
4013 | whose definitions have been compiled in this Emacs session, as well as | |
4014 | all functions called by those functions. | |
1c393159 | 4015 | |
52799cb8 RS |
4016 | The call graph does not include macros, inline functions, or |
4017 | primitives that the byte-code interpreter knows about directly \(eq, | |
4018 | cons, etc.\). | |
1c393159 JB |
4019 | |
4020 | The call tree also lists those functions which are not known to be called | |
52799cb8 RS |
4021 | \(that is, to which no calls have been compiled\), and which cannot be |
4022 | invoked interactively." | |
1c393159 JB |
4023 | (interactive) |
4024 | (message "Generating call tree...") | |
4025 | (with-output-to-temp-buffer "*Call-Tree*" | |
4026 | (set-buffer "*Call-Tree*") | |
4027 | (erase-buffer) | |
47cf9d3a | 4028 | (message "Generating call tree... (sorting on %s)" |
1c393159 JB |
4029 | byte-compile-call-tree-sort) |
4030 | (insert "Call tree for " | |
4031 | (cond ((null byte-compile-current-file) (or filename "???")) | |
4032 | ((stringp byte-compile-current-file) | |
4033 | byte-compile-current-file) | |
4034 | (t (buffer-name byte-compile-current-file))) | |
4035 | " sorted on " | |
4036 | (prin1-to-string byte-compile-call-tree-sort) | |
4037 | ":\n\n") | |
4038 | (if byte-compile-call-tree-sort | |
4039 | (setq byte-compile-call-tree | |
4040 | (sort byte-compile-call-tree | |
4041 | (cond ((eq byte-compile-call-tree-sort 'callers) | |
4042 | (function (lambda (x y) (< (length (nth 1 x)) | |
4043 | (length (nth 1 y)))))) | |
4044 | ((eq byte-compile-call-tree-sort 'calls) | |
4045 | (function (lambda (x y) (< (length (nth 2 x)) | |
4046 | (length (nth 2 y)))))) | |
4047 | ((eq byte-compile-call-tree-sort 'calls+callers) | |
4048 | (function (lambda (x y) (< (+ (length (nth 1 x)) | |
4049 | (length (nth 2 x))) | |
4050 | (+ (length (nth 1 y)) | |
4051 | (length (nth 2 y))))))) | |
4052 | ((eq byte-compile-call-tree-sort 'name) | |
4053 | (function (lambda (x y) (string< (car x) | |
4054 | (car y))))) | |
52799cb8 | 4055 | (t (error "`byte-compile-call-tree-sort': `%s' - unknown sort mode" |
1c393159 JB |
4056 | byte-compile-call-tree-sort)))))) |
4057 | (message "Generating call tree...") | |
4058 | (let ((rest byte-compile-call-tree) | |
4059 | (b (current-buffer)) | |
4060 | f p | |
4061 | callers calls) | |
4062 | (while rest | |
4063 | (prin1 (car (car rest)) b) | |
4064 | (setq callers (nth 1 (car rest)) | |
4065 | calls (nth 2 (car rest))) | |
4066 | (insert "\t" | |
4067 | (cond ((not (fboundp (setq f (car (car rest))))) | |
4068 | (if (null f) | |
4069 | " <top level>";; shouldn't insert nil then, actually -sk | |
4070 | " <not defined>")) | |
4071 | ((subrp (setq f (symbol-function f))) | |
4072 | " <subr>") | |
4073 | ((symbolp f) | |
4074 | (format " ==> %s" f)) | |
ed015bdd | 4075 | ((byte-code-function-p f) |
1c393159 JB |
4076 | "<compiled function>") |
4077 | ((not (consp f)) | |
4078 | "<malformed function>") | |
4079 | ((eq 'macro (car f)) | |
ed015bdd | 4080 | (if (or (byte-code-function-p (cdr f)) |
1c393159 JB |
4081 | (assq 'byte-code (cdr (cdr (cdr f))))) |
4082 | " <compiled macro>" | |
4083 | " <macro>")) | |
4084 | ((assq 'byte-code (cdr (cdr f))) | |
4085 | "<compiled lambda>") | |
4086 | ((eq 'lambda (car f)) | |
4087 | "<function>") | |
4088 | (t "???")) | |
4089 | (format " (%d callers + %d calls = %d)" | |
4090 | ;; Does the optimizer eliminate common subexpressions?-sk | |
4091 | (length callers) | |
4092 | (length calls) | |
4093 | (+ (length callers) (length calls))) | |
4094 | "\n") | |
4095 | (if callers | |
4096 | (progn | |
4097 | (insert " called by:\n") | |
4098 | (setq p (point)) | |
4099 | (insert " " (if (car callers) | |
4100 | (mapconcat 'symbol-name callers ", ") | |
4101 | "<top level>")) | |
4102 | (let ((fill-prefix " ")) | |
78bba1c8 TTN |
4103 | (fill-region-as-paragraph p (point))) |
4104 | (unless (= 0 (current-column)) | |
4105 | (insert "\n")))) | |
1c393159 JB |
4106 | (if calls |
4107 | (progn | |
4108 | (insert " calls:\n") | |
4109 | (setq p (point)) | |
4110 | (insert " " (mapconcat 'symbol-name calls ", ")) | |
4111 | (let ((fill-prefix " ")) | |
78bba1c8 TTN |
4112 | (fill-region-as-paragraph p (point))) |
4113 | (unless (= 0 (current-column)) | |
4114 | (insert "\n")))) | |
1c393159 JB |
4115 | (setq rest (cdr rest))) |
4116 | ||
4117 | (message "Generating call tree...(finding uncalled functions...)") | |
4118 | (setq rest byte-compile-call-tree) | |
416d3588 | 4119 | (let (uncalled def) |
1c393159 JB |
4120 | (while rest |
4121 | (or (nth 1 (car rest)) | |
416d3588 GM |
4122 | (null (setq f (caar rest))) |
4123 | (progn | |
4124 | (setq def (byte-compile-fdefinition f t)) | |
4125 | (and (eq (car-safe def) 'macro) | |
4126 | (eq (car-safe (cdr-safe def)) 'lambda) | |
4127 | (setq def (cdr def))) | |
4128 | (functionp def)) | |
4129 | (progn | |
4130 | (setq def (byte-compile-fdefinition f nil)) | |
4131 | (and (eq (car-safe def) 'macro) | |
4132 | (eq (car-safe (cdr-safe def)) 'lambda) | |
4133 | (setq def (cdr def))) | |
4134 | (commandp def)) | |
1c393159 JB |
4135 | (setq uncalled (cons f uncalled))) |
4136 | (setq rest (cdr rest))) | |
4137 | (if uncalled | |
4138 | (let ((fill-prefix " ")) | |
4139 | (insert "Noninteractive functions not known to be called:\n ") | |
4140 | (setq p (point)) | |
4141 | (insert (mapconcat 'symbol-name (nreverse uncalled) ", ")) | |
416d3588 GM |
4142 | (fill-region-as-paragraph p (point)))))) |
4143 | (message "Generating call tree...done."))) | |
1c393159 JB |
4144 | |
4145 | \f | |
814c447f | 4146 | ;;;###autoload |
7e7d0f8b RS |
4147 | (defun batch-byte-compile-if-not-done () |
4148 | "Like `byte-compile-file' but doesn't recompile if already up to date. | |
4149 | Use this from the command line, with `-batch'; | |
4150 | it won't work in an interactive Emacs." | |
4151 | (batch-byte-compile t)) | |
4152 | ||
1c393159 JB |
4153 | ;;; by crl@newton.purdue.edu |
4154 | ;;; Only works noninteractively. | |
fd5285f3 | 4155 | ;;;###autoload |
7e7d0f8b | 4156 | (defun batch-byte-compile (&optional noforce) |
52799cb8 RS |
4157 | "Run `byte-compile-file' on the files remaining on the command line. |
4158 | Use this from the command line, with `-batch'; | |
4159 | it won't work in an interactive Emacs. | |
4160 | Each file is processed even if an error occurred previously. | |
7e7d0f8b RS |
4161 | For example, invoke \"emacs -batch -f batch-byte-compile $emacs/ ~/*.el\". |
4162 | If NOFORCE is non-nil, don't recompile a file that seems to be | |
4163 | already up-to-date." | |
1c393159 JB |
4164 | ;; command-line-args-left is what is left of the command line (from startup.el) |
4165 | (defvar command-line-args-left) ;Avoid 'free variable' warning | |
4166 | (if (not noninteractive) | |
52799cb8 | 4167 | (error "`batch-byte-compile' is to be used only with -batch")) |
c2768569 | 4168 | (let ((bytecomp-error nil)) |
1c393159 JB |
4169 | (while command-line-args-left |
4170 | (if (file-directory-p (expand-file-name (car command-line-args-left))) | |
7e7d0f8b | 4171 | ;; Directory as argument. |
1c3b663f GM |
4172 | (let ((bytecomp-files (directory-files (car command-line-args-left))) |
4173 | bytecomp-source bytecomp-dest) | |
4174 | (dolist (bytecomp-file bytecomp-files) | |
4175 | (if (and (string-match emacs-lisp-file-regexp bytecomp-file) | |
4176 | (not (auto-save-file-name-p bytecomp-file)) | |
4177 | (setq bytecomp-source | |
4178 | (expand-file-name bytecomp-file | |
4179 | (car command-line-args-left))) | |
4180 | (setq bytecomp-dest (byte-compile-dest-file | |
4181 | bytecomp-source)) | |
4182 | (file-exists-p bytecomp-dest) | |
4183 | (file-newer-than-file-p bytecomp-source bytecomp-dest)) | |
4184 | (if (null (batch-byte-compile-file bytecomp-source)) | |
c2768569 | 4185 | (setq bytecomp-error t))))) |
7e7d0f8b RS |
4186 | ;; Specific file argument |
4187 | (if (or (not noforce) | |
1c3b663f GM |
4188 | (let* ((bytecomp-source (car command-line-args-left)) |
4189 | (bytecomp-dest (byte-compile-dest-file bytecomp-source))) | |
4190 | (or (not (file-exists-p bytecomp-dest)) | |
4191 | (file-newer-than-file-p bytecomp-source bytecomp-dest)))) | |
7e7d0f8b | 4192 | (if (null (batch-byte-compile-file (car command-line-args-left))) |
c2768569 | 4193 | (setq bytecomp-error t)))) |
1c393159 | 4194 | (setq command-line-args-left (cdr command-line-args-left))) |
c2768569 | 4195 | (kill-emacs (if bytecomp-error 1 0)))) |
1c393159 | 4196 | |
1c3b663f | 4197 | (defun batch-byte-compile-file (bytecomp-file) |
6b61353c | 4198 | (if debug-on-error |
1c3b663f | 4199 | (byte-compile-file bytecomp-file) |
6b61353c | 4200 | (condition-case err |
1c3b663f | 4201 | (byte-compile-file bytecomp-file) |
6b61353c KH |
4202 | (file-error |
4203 | (message (if (cdr err) | |
4204 | ">>Error occurred processing %s: %s (%s)" | |
d09b1c02 | 4205 | ">>Error occurred processing %s: %s") |
1c3b663f | 4206 | bytecomp-file |
6b61353c KH |
4207 | (get (car err) 'error-message) |
4208 | (prin1-to-string (cdr err))) | |
1c3b663f GM |
4209 | (let ((bytecomp-destfile (byte-compile-dest-file bytecomp-file))) |
4210 | (if (file-exists-p bytecomp-destfile) | |
4211 | (delete-file bytecomp-destfile))) | |
6b61353c KH |
4212 | nil) |
4213 | (error | |
4214 | (message (if (cdr err) | |
4215 | ">>Error occurred processing %s: %s (%s)" | |
1c393159 | 4216 | ">>Error occurred processing %s: %s") |
1c3b663f | 4217 | bytecomp-file |
6b61353c KH |
4218 | (get (car err) 'error-message) |
4219 | (prin1-to-string (cdr err))) | |
4220 | nil)))) | |
1c393159 | 4221 | |
49fec531 SM |
4222 | (defun byte-compile-refresh-preloaded () |
4223 | "Reload any Lisp file that was changed since Emacs was dumped. | |
4224 | Use with caution." | |
4225 | (let* ((argv0 (car command-line-args)) | |
4226 | (emacs-file (executable-find argv0))) | |
4227 | (if (not (and emacs-file (file-executable-p emacs-file))) | |
4228 | (message "Can't find %s to refresh preloaded Lisp files" argv0) | |
4229 | (dolist (f (reverse load-history)) | |
4230 | (setq f (car f)) | |
4231 | (if (string-match "elc\\'" f) (setq f (substring f 0 -1))) | |
4232 | (when (and (file-readable-p f) | |
4233 | (file-newer-than-file-p f emacs-file)) | |
4234 | (message "Reloading stale %s" (file-name-nondirectory f)) | |
4235 | (condition-case nil | |
4236 | (load f 'noerror nil 'nosuffix) | |
4237 | ;; Probably shouldn't happen, but in case of an error, it seems | |
4238 | ;; at least as useful to ignore it as it is to stop compilation. | |
4239 | (error nil))))))) | |
4240 | ||
e9681c45 | 4241 | ;;;###autoload |
6f8e3590 | 4242 | (defun batch-byte-recompile-directory (&optional arg) |
4f6d5bf0 | 4243 | "Run `byte-recompile-directory' on the dirs remaining on the command line. |
79c6071d | 4244 | Must be used only with `-batch', and kills Emacs on completion. |
defe3b41 EZ |
4245 | For example, invoke `emacs -batch -f batch-byte-recompile-directory .'. |
4246 | ||
4247 | Optional argument ARG is passed as second argument ARG to | |
516b3653 | 4248 | `byte-recompile-directory'; see there for its possible values |
defe3b41 | 4249 | and corresponding effects." |
e27c3564 JB |
4250 | ;; command-line-args-left is what is left of the command line (startup.el) |
4251 | (defvar command-line-args-left) ;Avoid 'free variable' warning | |
4252 | (if (not noninteractive) | |
4253 | (error "batch-byte-recompile-directory is to be used only with -batch")) | |
4254 | (or command-line-args-left | |
4255 | (setq command-line-args-left '("."))) | |
4256 | (while command-line-args-left | |
6f8e3590 | 4257 | (byte-recompile-directory (car command-line-args-left) arg) |
e27c3564 JB |
4258 | (setq command-line-args-left (cdr command-line-args-left))) |
4259 | (kill-emacs 0)) | |
4260 | ||
1c393159 | 4261 | (provide 'byte-compile) |
200503bb | 4262 | (provide 'bytecomp) |
1c393159 JB |
4263 | |
4264 | \f | |
4265 | ;;; report metering (see the hacks in bytecode.c) | |
4266 | ||
08d21785 | 4267 | (defvar byte-code-meter) |
52799cb8 | 4268 | (defun byte-compile-report-ops () |
5a972c36 GM |
4269 | (or (boundp 'byte-metering-on) |
4270 | (error "You must build Emacs with -DBYTE_CODE_METER to use this")) | |
52799cb8 RS |
4271 | (with-output-to-temp-buffer "*Meter*" |
4272 | (set-buffer "*Meter*") | |
4273 | (let ((i 0) n op off) | |
4274 | (while (< i 256) | |
4275 | (setq n (aref (aref byte-code-meter 0) i) | |
4276 | off nil) | |
4277 | (if t ;(not (zerop n)) | |
4278 | (progn | |
4279 | (setq op i) | |
4280 | (setq off nil) | |
4281 | (cond ((< op byte-nth) | |
4282 | (setq off (logand op 7)) | |
4283 | (setq op (logand op 248))) | |
4284 | ((>= op byte-constant) | |
4285 | (setq off (- op byte-constant) | |
4286 | op byte-constant))) | |
4287 | (setq op (aref byte-code-vector op)) | |
4288 | (insert (format "%-4d" i)) | |
4289 | (insert (symbol-name op)) | |
4290 | (if off (insert " [" (int-to-string off) "]")) | |
4291 | (indent-to 40) | |
4292 | (insert (int-to-string n) "\n"))) | |
4293 | (setq i (1+ i)))))) | |
1c393159 JB |
4294 | \f |
4295 | ;; To avoid "lisp nesting exceeds max-lisp-eval-depth" when bytecomp compiles | |
4296 | ;; itself, compile some of its most used recursive functions (at load time). | |
4297 | ;; | |
4298 | (eval-when-compile | |
591655c7 SM |
4299 | (or (byte-code-function-p (symbol-function 'byte-compile-form)) |
4300 | (assq 'byte-code (symbol-function 'byte-compile-form)) | |
4301 | (let ((byte-optimize nil) ; do it fast | |
4302 | (byte-compile-warnings nil)) | |
86da2828 GM |
4303 | (mapc (lambda (x) |
4304 | (or noninteractive (message "compiling %s..." x)) | |
4305 | (byte-compile x) | |
4306 | (or noninteractive (message "compiling %s...done" x))) | |
4307 | '(byte-compile-normal-call | |
4308 | byte-compile-form | |
4309 | byte-compile-body | |
4310 | ;; Inserted some more than necessary, to speed it up. | |
4311 | byte-compile-top-level | |
4312 | byte-compile-out-toplevel | |
4313 | byte-compile-constant | |
4314 | byte-compile-variable-ref)))) | |
591655c7 | 4315 | nil) |
fd5285f3 | 4316 | |
3433c43f DL |
4317 | (run-hooks 'bytecomp-load-hook) |
4318 | ||
977b50fb | 4319 | ;; arch-tag: 9c97b0f0-8745-4571-bfc3-8dceb677292a |
fd5285f3 | 4320 | ;;; bytecomp.el ends here |