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3cfe6dfd | 1 | /* Fundamental definitions for GNU Emacs Lisp interpreter. |
e2017fe2 | 2 | |
ba318903 PE |
3 | Copyright (C) 1985-1987, 1993-1995, 1997-2014 Free Software Foundation, |
4 | Inc. | |
3cfe6dfd JB |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
b9b1cc14 | 8 | GNU Emacs is free software: you can redistribute it and/or modify |
3cfe6dfd | 9 | it under the terms of the GNU General Public License as published by |
b9b1cc14 GM |
10 | the Free Software Foundation, either version 3 of the License, or |
11 | (at your option) any later version. | |
3cfe6dfd JB |
12 | |
13 | GNU Emacs is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
b9b1cc14 | 19 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
3cfe6dfd | 20 | |
6b61353c KH |
21 | #ifndef EMACS_LISP_H |
22 | #define EMACS_LISP_H | |
23 | ||
0328b6de | 24 | #include <setjmp.h> |
e32a5799 | 25 | #include <stdalign.h> |
6a8033e1 | 26 | #include <stdarg.h> |
89887d67 | 27 | #include <stddef.h> |
4d7e6e51 | 28 | #include <float.h> |
8ac068ac | 29 | #include <inttypes.h> |
dd3482fe | 30 | #include <limits.h> |
be44ca6c | 31 | #include <intprops.h> |
b9ff995e | 32 | #include <verify.h> |
49609976 | 33 | #include <libguile.h> |
be44ca6c | 34 | |
f162bcc3 | 35 | INLINE_HEADER_BEGIN |
f162bcc3 | 36 | |
bb9937df PE |
37 | /* Define a TYPE constant ID as an externally visible name. Use like this: |
38 | ||
bba89481 PE |
39 | #define ID_val (some integer preprocessor expression) |
40 | #if ENUMABLE (ID_val) | |
41 | DEFINE_GDB_SYMBOL_ENUM (ID) | |
42 | #else | |
bb9937df | 43 | DEFINE_GDB_SYMBOL_BEGIN (TYPE, ID) |
bba89481 | 44 | # define ID ID_val |
bb9937df | 45 | DEFINE_GDB_SYMBOL_END (ID) |
bba89481 | 46 | #endif |
bb9937df PE |
47 | |
48 | This hack is for the benefit of compilers that do not make macro | |
49 | definitions visible to the debugger. It's used for symbols that | |
50 | .gdbinit needs, symbols whose values may not fit in 'int' (where an | |
bba89481 PE |
51 | enum would suffice). |
52 | ||
53 | Some GCC versions before GCC 4.2 omit enums in debugging output; | |
54 | see GCC bug 23336. So don't use enums with older GCC. */ | |
55 | ||
56 | #if !defined __GNUC__ || 4 < __GNUC__ + (2 <= __GNUC_MINOR__) | |
57 | # define ENUMABLE(val) (INT_MIN <= (val) && (val) <= INT_MAX) | |
58 | #else | |
59 | # define ENUMABLE(val) 0 | |
60 | #endif | |
61 | ||
bba89481 | 62 | #define DEFINE_GDB_SYMBOL_ENUM(id) enum { id = id##_val }; |
0f679e86 | 63 | #if defined MAIN_PROGRAM |
bb9937df PE |
64 | # define DEFINE_GDB_SYMBOL_BEGIN(type, id) type const id EXTERNALLY_VISIBLE |
65 | # define DEFINE_GDB_SYMBOL_END(id) = id; | |
66 | #else | |
67 | # define DEFINE_GDB_SYMBOL_BEGIN(type, id) | |
68 | # define DEFINE_GDB_SYMBOL_END(val) | |
69 | #endif | |
70 | ||
03a660a6 PE |
71 | /* The ubiquitous max and min macros. */ |
72 | #undef min | |
73 | #undef max | |
74 | #define max(a, b) ((a) > (b) ? (a) : (b)) | |
75 | #define min(a, b) ((a) < (b) ? (a) : (b)) | |
76 | ||
faa52174 PE |
77 | /* Number of elements in an array. */ |
78 | #define ARRAYELTS(arr) (sizeof (arr) / sizeof (arr)[0]) | |
01ae0fbf | 79 | |
5403b2d3 PE |
80 | /* Number of bits in a Lisp_Object tag. */ |
81 | DEFINE_GDB_SYMBOL_BEGIN (int, GCTYPEBITS) | |
82 | #define GCTYPEBITS 3 | |
83 | DEFINE_GDB_SYMBOL_END (GCTYPEBITS) | |
84 | ||
85 | /* The number of bits needed in an EMACS_INT over and above the number | |
86 | of bits in a pointer. This is 0 on systems where: | |
87 | 1. We can specify multiple-of-8 alignment on static variables. | |
88 | 2. We know malloc returns a multiple of 8. */ | |
89 | #if (defined alignas \ | |
90 | && (defined GNU_MALLOC || defined DOUG_LEA_MALLOC || defined __GLIBC__ \ | |
587fd086 | 91 | || defined DARWIN_OS || defined __sun || defined __MINGW32__)) |
5403b2d3 PE |
92 | # define NONPOINTER_BITS 0 |
93 | #else | |
94 | # define NONPOINTER_BITS GCTYPEBITS | |
95 | #endif | |
96 | ||
34374650 PE |
97 | /* EMACS_INT - signed integer wide enough to hold an Emacs value |
98 | EMACS_INT_MAX - maximum value of EMACS_INT; can be used in #if | |
99 | pI - printf length modifier for EMACS_INT | |
100 | EMACS_UINT - unsigned variant of EMACS_INT */ | |
49609976 BT |
101 | |
102 | typedef scm_t_signed_bits EMACS_INT; | |
103 | typedef scm_t_bits EMACS_UINT; | |
104 | #define EMACS_INT_MAX SCM_T_SIGNED_BITS_MAX | |
105 | ||
106 | #if INTPTR_MAX == INT_MAX | |
107 | #define pI "" | |
108 | #elif INTPTR_MAX == LONG_MAX | |
109 | #define pI "l" | |
110 | #elif INTPTR_MAX == LLONG_MAX | |
111 | #define pI "ll" | |
112 | #elif INTPTR_MAX == INTMAX_MAX | |
113 | #define pI "j" | |
114 | #else | |
115 | #error "Cannot determine length modifier for EMACS_INT" | |
68c45bf0 | 116 | #endif |
34374650 | 117 | |
df5b4930 PE |
118 | /* Number of bits to put in each character in the internal representation |
119 | of bool vectors. This should not vary across implementations. */ | |
120 | enum { BOOL_VECTOR_BITS_PER_CHAR = | |
121 | #define BOOL_VECTOR_BITS_PER_CHAR 8 | |
122 | BOOL_VECTOR_BITS_PER_CHAR | |
123 | }; | |
124 | ||
87c4314d | 125 | /* An unsigned integer type representing a fixed-length bit sequence, |
9c23779a | 126 | suitable for bool vector words, GC mark bits, etc. Normally it is size_t |
df5b4930 | 127 | for speed, but it is unsigned char on weird platforms. */ |
2cf00efc | 128 | #if BOOL_VECTOR_BITS_PER_CHAR == CHAR_BIT |
87c4314d | 129 | typedef size_t bits_word; |
2cf00efc | 130 | # define BITS_WORD_MAX SIZE_MAX |
df5b4930 PE |
131 | enum { BITS_PER_BITS_WORD = CHAR_BIT * sizeof (bits_word) }; |
132 | #else | |
133 | typedef unsigned char bits_word; | |
2cf00efc | 134 | # define BITS_WORD_MAX ((1u << BOOL_VECTOR_BITS_PER_CHAR) - 1) |
df5b4930 PE |
135 | enum { BITS_PER_BITS_WORD = BOOL_VECTOR_BITS_PER_CHAR }; |
136 | #endif | |
2cf00efc | 137 | verify (BITS_WORD_MAX >> (BITS_PER_BITS_WORD - 1) == 1); |
87c4314d | 138 | |
34374650 PE |
139 | /* Number of bits in some machine integer types. */ |
140 | enum | |
141 | { | |
142 | BITS_PER_CHAR = CHAR_BIT, | |
143 | BITS_PER_SHORT = CHAR_BIT * sizeof (short), | |
34374650 PE |
144 | BITS_PER_LONG = CHAR_BIT * sizeof (long int), |
145 | BITS_PER_EMACS_INT = CHAR_BIT * sizeof (EMACS_INT) | |
146 | }; | |
ce99fd65 | 147 | |
a81d11a3 PE |
148 | /* printmax_t and uprintmax_t are types for printing large integers. |
149 | These are the widest integers that are supported for printing. | |
150 | pMd etc. are conversions for printing them. | |
151 | On C99 hosts, there's no problem, as even the widest integers work. | |
152 | Fall back on EMACS_INT on pre-C99 hosts. */ | |
153 | #ifdef PRIdMAX | |
154 | typedef intmax_t printmax_t; | |
155 | typedef uintmax_t uprintmax_t; | |
156 | # define pMd PRIdMAX | |
157 | # define pMu PRIuMAX | |
158 | #else | |
159 | typedef EMACS_INT printmax_t; | |
160 | typedef EMACS_UINT uprintmax_t; | |
161 | # define pMd pI"d" | |
162 | # define pMu pI"u" | |
163 | #endif | |
164 | ||
9c4c5f81 PE |
165 | /* Use pD to format ptrdiff_t values, which suffice for indexes into |
166 | buffers and strings. Emacs never allocates objects larger than | |
167 | PTRDIFF_MAX bytes, as they cause problems with pointer subtraction. | |
168 | In C99, pD can always be "t"; configure it here for the sake of | |
169 | pre-C99 libraries such as glibc 2.0 and Solaris 8. */ | |
170 | #if PTRDIFF_MAX == INT_MAX | |
171 | # define pD "" | |
172 | #elif PTRDIFF_MAX == LONG_MAX | |
173 | # define pD "l" | |
174 | #elif PTRDIFF_MAX == LLONG_MAX | |
175 | # define pD "ll" | |
176 | #else | |
177 | # define pD "t" | |
178 | #endif | |
179 | ||
e0b8c689 | 180 | /* Extra internal type checking? */ |
c6129d7e | 181 | |
b9ff995e PE |
182 | /* Define Emacs versions of <assert.h>'s 'assert (COND)' and <verify.h>'s |
183 | 'assume (COND)'. COND should be free of side effects, as it may or | |
184 | may not be evaluated. | |
185 | ||
186 | 'eassert (COND)' checks COND at runtime if ENABLE_CHECKING is | |
187 | defined and suppress_checking is false, and does nothing otherwise. | |
188 | Emacs dies if COND is checked and is false. The suppress_checking | |
189 | variable is initialized to 0 in alloc.c. Set it to 1 using a | |
190 | debugger to temporarily disable aborting on detected internal | |
191 | inconsistencies or error conditions. | |
192 | ||
193 | In some cases, a good compiler may be able to optimize away the | |
194 | eassert macro even if ENABLE_CHECKING is true, e.g., if XSTRING (x) | |
195 | uses eassert to test STRINGP (x), but a particular use of XSTRING | |
196 | is invoked only after testing that STRINGP (x) is true, making the | |
197 | test redundant. | |
198 | ||
199 | eassume is like eassert except that it also causes the compiler to | |
200 | assume that COND is true afterwards, regardless of whether runtime | |
201 | checking is enabled. This can improve performance in some cases, | |
202 | though it can degrade performance in others. It's often suboptimal | |
203 | for COND to call external functions or access volatile storage. */ | |
204 | ||
310fbfa8 | 205 | #ifndef ENABLE_CHECKING |
96c06863 | 206 | # define eassert(cond) ((void) (false && (cond))) /* Check COND compiles. */ |
b9ff995e | 207 | # define eassume(cond) assume (cond) |
310fbfa8 | 208 | #else /* ENABLE_CHECKING */ |
c6129d7e | 209 | |
845ca893 | 210 | extern _Noreturn void die (const char *, const char *, int); |
244ed907 | 211 | |
fce31d69 | 212 | extern bool suppress_checking EXTERNALLY_VISIBLE; |
244ed907 | 213 | |
310fbfa8 | 214 | # define eassert(cond) \ |
5013fc08 | 215 | (suppress_checking || (cond) \ |
0d5d3029 | 216 | ? (void) 0 \ |
5013fc08 | 217 | : die (# cond, __FILE__, __LINE__)) |
b9ff995e PE |
218 | # define eassume(cond) \ |
219 | (suppress_checking \ | |
220 | ? assume (cond) \ | |
221 | : (cond) \ | |
222 | ? (void) 0 \ | |
223 | : die (# cond, __FILE__, __LINE__)) | |
3694b4ab | 224 | #endif /* ENABLE_CHECKING */ |
3e0b94e7 | 225 | |
b9466edb | 226 | \f |
4706125e PE |
227 | enum Lisp_Bits |
228 | { | |
b6b3b294 PE |
229 | /* 2**GCTYPEBITS. This must be a macro that expands to a literal |
230 | integer constant, for MSVC. */ | |
e32a5799 | 231 | #define GCALIGNMENT 8 |
e32a5799 | 232 | |
4706125e | 233 | /* Number of bits in a Lisp fixnum value, not counting the tag. */ |
49609976 | 234 | FIXNUM_BITS = SCM_I_FIXNUM_BIT |
4706125e | 235 | }; |
34374650 | 236 | |
e32a5799 PE |
237 | #if GCALIGNMENT != 1 << GCTYPEBITS |
238 | # error "GCALIGNMENT and GCTYPEBITS are inconsistent" | |
239 | #endif | |
240 | ||
5403b2d3 | 241 | DEFINE_GDB_SYMBOL_BEGIN (bool, USE_LSB_TAG) |
ee52e81d | 242 | #define USE_LSB_TAG 1 |
5403b2d3 PE |
243 | DEFINE_GDB_SYMBOL_END (USE_LSB_TAG) |
244 | ||
e32a5799 PE |
245 | #ifndef alignas |
246 | # define alignas(alignment) /* empty */ | |
bfe3e0a2 | 247 | # if USE_LSB_TAG |
e32a5799 | 248 | # error "USE_LSB_TAG requires alignas" |
b9466edb | 249 | # endif |
b9466edb SM |
250 | #endif |
251 | ||
84575e67 PE |
252 | /* Some operations are so commonly executed that they are implemented |
253 | as macros, not functions, because otherwise runtime performance would | |
254 | suffer too much when compiling with GCC without optimization. | |
255 | There's no need to inline everything, just the operations that | |
256 | would otherwise cause a serious performance problem. | |
257 | ||
258 | For each such operation OP, define a macro lisp_h_OP that contains | |
5ebb1ee6 | 259 | the operation's implementation. That way, OP can be implemented |
84575e67 PE |
260 | via a macro definition like this: |
261 | ||
262 | #define OP(x) lisp_h_OP (x) | |
263 | ||
264 | and/or via a function definition like this: | |
265 | ||
266 | LISP_MACRO_DEFUN (OP, Lisp_Object, (Lisp_Object x), (x)) | |
267 | ||
268 | which macro-expands to this: | |
269 | ||
270 | Lisp_Object (OP) (Lisp_Object x) { return lisp_h_OP (x); } | |
271 | ||
272 | without worrying about the implementations diverging, since | |
273 | lisp_h_OP defines the actual implementation. The lisp_h_OP macros | |
274 | are intended to be private to this include file, and should not be | |
275 | used elsewhere. | |
276 | ||
277 | FIXME: Remove the lisp_h_OP macros, and define just the inline OP | |
278 | functions, once most developers have access to GCC 4.8 or later and | |
279 | can use "gcc -Og" to debug. Maybe in the year 2016. See | |
280 | Bug#11935. | |
281 | ||
282 | Commentary for these macros can be found near their corresponding | |
283 | functions, below. */ | |
284 | ||
49609976 BT |
285 | #define SMOB_PTR(a) ((void *) SCM_SMOB_DATA (a)) |
286 | #define SMOB_TYPEP(x, tag) (x && SCM_SMOB_PREDICATE (tag, x)) | |
287 | #define lisp_h_XLI(o) (SCM_UNPACK (o)) | |
288 | #define lisp_h_XIL(i) (SCM_PACK (i)) | |
84575e67 PE |
289 | #define lisp_h_CHECK_LIST_CONS(x, y) CHECK_TYPE (CONSP (x), Qlistp, y) |
290 | #define lisp_h_CHECK_NUMBER(x) CHECK_TYPE (INTEGERP (x), Qintegerp, x) | |
291 | #define lisp_h_CHECK_SYMBOL(x) CHECK_TYPE (SYMBOLP (x), Qsymbolp, x) | |
40f5d4b7 PE |
292 | #define lisp_h_CHECK_TYPE(ok, predicate, x) \ |
293 | ((ok) ? (void) 0 : (void) wrong_type_argument (predicate, x)) | |
e642c718 | 294 | #define lisp_h_CONSP(x) (x && scm_is_pair (x)) |
49609976 | 295 | #define lisp_h_EQ(x, y) (scm_is_eq (x, y)) |
ed446f1e | 296 | #define lisp_h_FLOATP(x) (x && SCM_INEXACTP (x)) |
49609976 | 297 | #define lisp_h_INTEGERP(x) (SCM_I_INUMP (x)) |
84575e67 | 298 | #define lisp_h_MARKERP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Marker) |
49609976 | 299 | #define lisp_h_MISCP(x) (SMOB_TYPEP (x, lisp_misc_tag)) |
84575e67 PE |
300 | #define lisp_h_NILP(x) EQ (x, Qnil) |
301 | #define lisp_h_SET_SYMBOL_VAL(sym, v) \ | |
302 | (eassert ((sym)->redirect == SYMBOL_PLAINVAL), (sym)->val.value = (v)) | |
303 | #define lisp_h_SYMBOL_CONSTANT_P(sym) (XSYMBOL (sym)->constant) | |
304 | #define lisp_h_SYMBOL_VAL(sym) \ | |
305 | (eassert ((sym)->redirect == SYMBOL_PLAINVAL), (sym)->val.value) | |
49609976 BT |
306 | #define lisp_h_SYMBOLP(x) (SMOB_TYPEP (x, lisp_symbol_tag)) |
307 | #define lisp_h_VECTORLIKEP(x) (SMOB_TYPEP (x, lisp_vectorlike_tag)) | |
e642c718 BT |
308 | #define lisp_h_XCAR(c) (scm_car (c)) |
309 | #define lisp_h_XCDR(c) (scm_cdr (c)) | |
49609976 | 310 | #define lisp_h_XHASH(a) (SCM_UNPACK (a)) |
84575e67 | 311 | #define lisp_h_XSYMBOL(a) \ |
49609976 | 312 | (eassert (SYMBOLP (a)), (struct Lisp_Symbol *) SMOB_PTR (a)) |
84575e67 PE |
313 | |
314 | /* When compiling via gcc -O0, define the key operations as macros, as | |
315 | Emacs is too slow otherwise. To disable this optimization, compile | |
96c06863 | 316 | with -DINLINING=false. */ |
9c53af1f | 317 | #if 0 |
84575e67 PE |
318 | #if (defined __NO_INLINE__ \ |
319 | && ! defined __OPTIMIZE__ && ! defined __OPTIMIZE_SIZE__ \ | |
320 | && ! (defined INLINING && ! INLINING)) | |
321 | # define XLI(o) lisp_h_XLI (o) | |
322 | # define XIL(i) lisp_h_XIL (i) | |
323 | # define CHECK_LIST_CONS(x, y) lisp_h_CHECK_LIST_CONS (x, y) | |
324 | # define CHECK_NUMBER(x) lisp_h_CHECK_NUMBER (x) | |
325 | # define CHECK_SYMBOL(x) lisp_h_CHECK_SYMBOL (x) | |
40f5d4b7 | 326 | # define CHECK_TYPE(ok, predicate, x) lisp_h_CHECK_TYPE (ok, predicate, x) |
84575e67 PE |
327 | # define CONSP(x) lisp_h_CONSP (x) |
328 | # define EQ(x, y) lisp_h_EQ (x, y) | |
329 | # define FLOATP(x) lisp_h_FLOATP (x) | |
330 | # define INTEGERP(x) lisp_h_INTEGERP (x) | |
331 | # define MARKERP(x) lisp_h_MARKERP (x) | |
332 | # define MISCP(x) lisp_h_MISCP (x) | |
333 | # define NILP(x) lisp_h_NILP (x) | |
334 | # define SET_SYMBOL_VAL(sym, v) lisp_h_SET_SYMBOL_VAL (sym, v) | |
335 | # define SYMBOL_CONSTANT_P(sym) lisp_h_SYMBOL_CONSTANT_P (sym) | |
336 | # define SYMBOL_VAL(sym) lisp_h_SYMBOL_VAL (sym) | |
337 | # define SYMBOLP(x) lisp_h_SYMBOLP (x) | |
338 | # define VECTORLIKEP(x) lisp_h_VECTORLIKEP (x) | |
339 | # define XCAR(c) lisp_h_XCAR (c) | |
340 | # define XCDR(c) lisp_h_XCDR (c) | |
84575e67 | 341 | # define XHASH(a) lisp_h_XHASH (a) |
84575e67 | 342 | # define XSYMBOL(a) lisp_h_XSYMBOL (a) |
84575e67 | 343 | #endif |
9c53af1f | 344 | #endif |
84575e67 PE |
345 | |
346 | /* Define NAME as a lisp.h inline function that returns TYPE and has | |
347 | arguments declared as ARGDECLS and passed as ARGS. ARGDECLS and | |
348 | ARGS should be parenthesized. Implement the function by calling | |
349 | lisp_h_NAME ARGS. */ | |
350 | #define LISP_MACRO_DEFUN(name, type, argdecls, args) \ | |
00382e8b | 351 | INLINE type (name) argdecls { return lisp_h_##name args; } |
84575e67 PE |
352 | |
353 | /* like LISP_MACRO_DEFUN, except NAME returns void. */ | |
354 | #define LISP_MACRO_DEFUN_VOID(name, argdecls, args) \ | |
00382e8b | 355 | INLINE void (name) argdecls { lisp_h_##name args; } |
84575e67 PE |
356 | |
357 | ||
99a3d506 | 358 | /* Define the fundamental Lisp data structures. */ |
3cfe6dfd | 359 | |
c95a4266 EZ |
360 | /* This is the set of Lisp data types. If you want to define a new |
361 | data type, read the comments after Lisp_Fwd_Type definition | |
362 | below. */ | |
3cfe6dfd | 363 | |
49609976 BT |
364 | #define INTMASK SCM_MOST_POSITIVE_FIXNUM |
365 | #define case_Lisp_Int case Lisp_Int | |
2de9f71c | 366 | |
29abe551 | 367 | /* Idea stolen from GDB. Pedantic GCC complains about enum bitfields, |
91f2d272 PE |
368 | MSVC doesn't support them, and xlc and Oracle Studio c99 complain |
369 | vociferously about them. */ | |
370 | #if (defined __STRICT_ANSI__ || defined _MSC_VER || defined __IBMC__ \ | |
371 | || (defined __SUNPRO_C && __STDC__)) | |
a6fc3b5c EZ |
372 | #define ENUM_BF(TYPE) unsigned int |
373 | #else | |
374 | #define ENUM_BF(TYPE) enum TYPE | |
375 | #endif | |
376 | ||
49609976 BT |
377 | scm_t_bits lisp_symbol_tag; |
378 | scm_t_bits lisp_misc_tag; | |
379 | scm_t_bits lisp_string_tag; | |
380 | scm_t_bits lisp_vectorlike_tag; | |
a6fc3b5c | 381 | |
3cfe6dfd JB |
382 | enum Lisp_Type |
383 | { | |
01099ad1 BT |
384 | Lisp_Other, |
385 | ||
99a3d506 | 386 | /* Integer. XINT (obj) is the integer value. */ |
49609976 | 387 | Lisp_Int, |
3cfe6dfd | 388 | |
99a3d506 | 389 | /* Symbol. XSYMBOL (object) points to a struct Lisp_Symbol. */ |
49609976 | 390 | Lisp_Symbol, |
3cfe6dfd | 391 | |
84d1833e KH |
392 | /* Miscellaneous. XMISC (object) points to a union Lisp_Misc, |
393 | whose first member indicates the subtype. */ | |
49609976 | 394 | Lisp_Misc, |
3cfe6dfd JB |
395 | |
396 | /* String. XSTRING (object) points to a struct Lisp_String. | |
99a3d506 | 397 | The length of the string, and its contents, are stored therein. */ |
49609976 | 398 | Lisp_String, |
3cfe6dfd | 399 | |
b5088f80 | 400 | /* Vector of Lisp objects, or something resembling it. |
7c06ac2b | 401 | XVECTOR (object) points to a struct Lisp_Vector, which contains |
b5088f80 KH |
402 | the size and contents. The size field also contains the type |
403 | information, if it's not a real vector object. */ | |
49609976 | 404 | Lisp_Vectorlike, |
3cfe6dfd | 405 | |
99a3d506 | 406 | /* Cons. XCONS (object) points to a struct Lisp_Cons. */ |
49609976 | 407 | Lisp_Cons, |
4d1207f6 | 408 | |
49609976 | 409 | Lisp_Float |
3cfe6dfd JB |
410 | }; |
411 | ||
a32fa736 | 412 | /* This is the set of data types that share a common structure. |
c98adc1b KH |
413 | The first member of the structure is a type code from this set. |
414 | The enum values are arbitrary, but we'll use large numbers to make it | |
415 | more likely that we'll spot the error if a random word in memory is | |
416 | mistakenly interpreted as a Lisp_Misc. */ | |
1c4ca5a3 KH |
417 | enum Lisp_Misc_Type |
418 | { | |
c98adc1b | 419 | Lisp_Misc_Free = 0x5eab, |
84d1833e | 420 | Lisp_Misc_Marker, |
99a3d506 | 421 | Lisp_Misc_Overlay, |
222151aa | 422 | Lisp_Misc_Save_Value, |
99a3d506 RS |
423 | /* Currently floats are not a misc type, |
424 | but let's define this in case we want to change that. */ | |
425 | Lisp_Misc_Float, | |
426 | /* This is not a type code. It is for range checking. */ | |
427 | Lisp_Misc_Limit | |
1c4ca5a3 KH |
428 | }; |
429 | ||
ce5b453a SM |
430 | /* These are the types of forwarding objects used in the value slot |
431 | of symbols for special built-in variables whose value is stored in | |
432 | C variables. */ | |
433 | enum Lisp_Fwd_Type | |
434 | { | |
435 | Lisp_Fwd_Int, /* Fwd to a C `int' variable. */ | |
436 | Lisp_Fwd_Bool, /* Fwd to a C boolean var. */ | |
437 | Lisp_Fwd_Obj, /* Fwd to a C Lisp_Object variable. */ | |
438 | Lisp_Fwd_Buffer_Obj, /* Fwd to a Lisp_Object field of buffers. */ | |
29abe551 | 439 | Lisp_Fwd_Kboard_Obj /* Fwd to a Lisp_Object field of kboards. */ |
ce5b453a SM |
440 | }; |
441 | ||
49609976 BT |
442 | typedef SCM Lisp_Object; |
443 | ||
444 | #define LISP_INITIALLY_ZERO SCM_INUM0 | |
3cfe6dfd | 445 | |
84575e67 PE |
446 | /* Convert a Lisp_Object to the corresponding EMACS_INT and vice versa. |
447 | At the machine level, these operations are no-ops. */ | |
448 | LISP_MACRO_DEFUN (XLI, EMACS_INT, (Lisp_Object o), (o)) | |
449 | LISP_MACRO_DEFUN (XIL, Lisp_Object, (EMACS_INT i), (i)) | |
450 | ||
b5088f80 KH |
451 | /* In the size word of a struct Lisp_Vector, this bit means it's really |
452 | some other vector-like object. */ | |
bba89481 PE |
453 | #define PSEUDOVECTOR_FLAG_val (PTRDIFF_MAX - PTRDIFF_MAX / 2) |
454 | #if ENUMABLE (PSEUDOVECTOR_FLAG_val) | |
455 | DEFINE_GDB_SYMBOL_ENUM (PSEUDOVECTOR_FLAG) | |
456 | #else | |
bb9937df | 457 | DEFINE_GDB_SYMBOL_BEGIN (ptrdiff_t, PSEUDOVECTOR_FLAG) |
bba89481 | 458 | # define PSEUDOVECTOR_FLAG PSEUDOVECTOR_FLAG_val |
bb9937df | 459 | DEFINE_GDB_SYMBOL_END (PSEUDOVECTOR_FLAG) |
bba89481 | 460 | #endif |
b5088f80 | 461 | |
303a5c93 | 462 | /* In a pseudovector, the size field actually contains a word with one |
6aea7528 DA |
463 | PSEUDOVECTOR_FLAG bit set, and one of the following values extracted |
464 | with PVEC_TYPE_MASK to indicate the actual type. */ | |
99a3d506 RS |
465 | enum pvec_type |
466 | { | |
6aea7528 | 467 | PVEC_NORMAL_VECTOR, |
ee28be33 SM |
468 | PVEC_FREE, |
469 | PVEC_PROCESS, | |
470 | PVEC_FRAME, | |
471 | PVEC_WINDOW, | |
472 | PVEC_BOOL_VECTOR, | |
473 | PVEC_BUFFER, | |
474 | PVEC_HASH_TABLE, | |
475 | PVEC_TERMINAL, | |
476 | PVEC_WINDOW_CONFIGURATION, | |
477 | PVEC_SUBR, | |
478 | PVEC_OTHER, | |
914adc42 DA |
479 | /* These should be last, check internal_equal to see why. */ |
480 | PVEC_COMPILED, | |
481 | PVEC_CHAR_TABLE, | |
482 | PVEC_SUB_CHAR_TABLE, | |
483 | PVEC_FONT /* Should be last because it's used for range checking. */ | |
99a3d506 | 484 | }; |
b5088f80 | 485 | |
4706125e | 486 | enum More_Lisp_Bits |
1781b9e9 | 487 | { |
4706125e PE |
488 | /* For convenience, we also store the number of elements in these bits. |
489 | Note that this size is not necessarily the memory-footprint size, but | |
490 | only the number of Lisp_Object fields (that need to be traced by GC). | |
491 | The distinction is used, e.g., by Lisp_Process, which places extra | |
492 | non-Lisp_Object fields at the end of the structure. */ | |
914adc42 | 493 | PSEUDOVECTOR_SIZE_BITS = 12, |
1781b9e9 | 494 | PSEUDOVECTOR_SIZE_MASK = (1 << PSEUDOVECTOR_SIZE_BITS) - 1, |
914adc42 DA |
495 | |
496 | /* To calculate the memory footprint of the pseudovector, it's useful | |
497 | to store the size of non-Lisp area in word_size units here. */ | |
498 | PSEUDOVECTOR_REST_BITS = 12, | |
04a2d0d3 | 499 | PSEUDOVECTOR_REST_MASK = (((1 << PSEUDOVECTOR_REST_BITS) - 1) |
914adc42 DA |
500 | << PSEUDOVECTOR_SIZE_BITS), |
501 | ||
502 | /* Used to extract pseudovector subtype information. */ | |
503 | PSEUDOVECTOR_AREA_BITS = PSEUDOVECTOR_SIZE_BITS + PSEUDOVECTOR_REST_BITS, | |
56a0e352 | 504 | PVEC_TYPE_MASK = 0x3f << PSEUDOVECTOR_AREA_BITS |
4706125e | 505 | }; |
3cfe6dfd | 506 | \f |
84575e67 | 507 | /* These functions extract various sorts of values from a Lisp_Object. |
bb9937df PE |
508 | For example, if tem is a Lisp_Object whose type is Lisp_Cons, |
509 | XCONS (tem) is the struct Lisp_Cons * pointing to the memory for | |
510 | that cons. */ | |
3cfe6dfd | 511 | |
84575e67 PE |
512 | /* Largest and smallest representable fixnum values. These are the C |
513 | values. They are macros for use in static initializers. */ | |
49609976 BT |
514 | #define MOST_POSITIVE_FIXNUM SCM_MOST_POSITIVE_FIXNUM |
515 | #define MOST_NEGATIVE_FIXNUM SCM_MOST_NEGATIVE_FIXNUM | |
3cfe6dfd | 516 | |
84575e67 PE |
517 | /* Make a Lisp integer representing the value of the low order |
518 | bits of N. */ | |
00382e8b | 519 | INLINE Lisp_Object |
84575e67 PE |
520 | make_number (EMACS_INT n) |
521 | { | |
49609976 | 522 | return SCM_I_MAKINUM (n); |
84575e67 | 523 | } |
3cfe6dfd | 524 | |
84575e67 | 525 | /* Extract A's value as a signed integer. */ |
00382e8b | 526 | INLINE EMACS_INT |
84575e67 PE |
527 | XINT (Lisp_Object a) |
528 | { | |
49609976 | 529 | return SCM_I_INUM (a); |
84575e67 | 530 | } |
3cfe6dfd | 531 | |
84575e67 PE |
532 | /* Like XINT (A), but may be faster. A must be nonnegative. |
533 | If ! USE_LSB_TAG, this takes advantage of the fact that Lisp | |
534 | integers have zero-bits in their tags. */ | |
00382e8b | 535 | INLINE EMACS_INT |
84575e67 PE |
536 | XFASTINT (Lisp_Object a) |
537 | { | |
49609976 | 538 | EMACS_INT n = XINT (a); |
84575e67 PE |
539 | eassert (0 <= n); |
540 | return n; | |
541 | } | |
b7acde90 | 542 | |
84575e67 | 543 | /* Extract A's value as an unsigned integer. */ |
00382e8b | 544 | INLINE EMACS_UINT |
84575e67 PE |
545 | XUINT (Lisp_Object a) |
546 | { | |
49609976 | 547 | return SCM_I_INUM (a); |
84575e67 | 548 | } |
b349d111 | 549 | |
84575e67 PE |
550 | /* Return A's (Lisp-integer sized) hash. Happens to be like XUINT |
551 | right now, but XUINT should only be applied to objects we know are | |
552 | integers. */ | |
553 | LISP_MACRO_DEFUN (XHASH, EMACS_INT, (Lisp_Object a), (a)) | |
b263a6b0 | 554 | |
84575e67 | 555 | /* Like make_number (N), but may be faster. N must be in nonnegative range. */ |
00382e8b | 556 | INLINE Lisp_Object |
84575e67 PE |
557 | make_natnum (EMACS_INT n) |
558 | { | |
559 | eassert (0 <= n && n <= MOST_POSITIVE_FIXNUM); | |
49609976 | 560 | return make_number (n); |
84575e67 | 561 | } |
b9466edb | 562 | |
84575e67 PE |
563 | /* Return true if X and Y are the same object. */ |
564 | LISP_MACRO_DEFUN (EQ, bool, (Lisp_Object x, Lisp_Object y), (x, y)) | |
0de4bb68 | 565 | |
96c06863 | 566 | /* Value is true if I doesn't fit into a Lisp fixnum. It is |
987c9327 | 567 | written this way so that it also works if I is of unsigned |
2e6578fb | 568 | type or if I is a NaN. */ |
dc8e8b07 GM |
569 | |
570 | #define FIXNUM_OVERFLOW_P(i) \ | |
7216e43b | 571 | (! ((0 <= (i) || MOST_NEGATIVE_FIXNUM <= (i)) && (i) <= MOST_POSITIVE_FIXNUM)) |
dc8e8b07 | 572 | |
00382e8b | 573 | INLINE ptrdiff_t |
d311d28c PE |
574 | clip_to_bounds (ptrdiff_t lower, EMACS_INT num, ptrdiff_t upper) |
575 | { | |
576 | return num < lower ? lower : num <= upper ? num : upper; | |
577 | } | |
84575e67 PE |
578 | \f |
579 | /* Forward declarations. */ | |
580 | ||
581 | /* Defined in this file. */ | |
582 | union Lisp_Fwd; | |
00382e8b PE |
583 | INLINE bool BOOL_VECTOR_P (Lisp_Object); |
584 | INLINE bool BUFFER_OBJFWDP (union Lisp_Fwd *); | |
585 | INLINE bool BUFFERP (Lisp_Object); | |
586 | INLINE bool CHAR_TABLE_P (Lisp_Object); | |
587 | INLINE Lisp_Object CHAR_TABLE_REF_ASCII (Lisp_Object, ptrdiff_t); | |
588 | INLINE bool (CONSP) (Lisp_Object); | |
589 | INLINE bool (FLOATP) (Lisp_Object); | |
590 | INLINE bool functionp (Lisp_Object); | |
591 | INLINE bool (INTEGERP) (Lisp_Object); | |
592 | INLINE bool (MARKERP) (Lisp_Object); | |
593 | INLINE bool (MISCP) (Lisp_Object); | |
594 | INLINE bool (NILP) (Lisp_Object); | |
595 | INLINE bool OVERLAYP (Lisp_Object); | |
596 | INLINE bool PROCESSP (Lisp_Object); | |
597 | INLINE bool PSEUDOVECTORP (Lisp_Object, int); | |
598 | INLINE bool SAVE_VALUEP (Lisp_Object); | |
599 | INLINE void set_sub_char_table_contents (Lisp_Object, ptrdiff_t, | |
84575e67 | 600 | Lisp_Object); |
00382e8b PE |
601 | INLINE bool STRINGP (Lisp_Object); |
602 | INLINE bool SUB_CHAR_TABLE_P (Lisp_Object); | |
603 | INLINE bool SUBRP (Lisp_Object); | |
604 | INLINE bool (SYMBOLP) (Lisp_Object); | |
605 | INLINE bool (VECTORLIKEP) (Lisp_Object); | |
606 | INLINE bool WINDOWP (Lisp_Object); | |
607 | INLINE struct Lisp_Save_Value *XSAVE_VALUE (Lisp_Object); | |
d311d28c | 608 | |
84575e67 PE |
609 | /* Defined in chartab.c. */ |
610 | extern Lisp_Object char_table_ref (Lisp_Object, int); | |
611 | extern void char_table_set (Lisp_Object, int, Lisp_Object); | |
612 | extern int char_table_translate (Lisp_Object, int); | |
613 | ||
614 | /* Defined in data.c. */ | |
615 | extern Lisp_Object Qarrayp, Qbufferp, Qbuffer_or_string_p, Qchar_table_p; | |
616 | extern Lisp_Object Qconsp, Qfloatp, Qintegerp, Qlambda, Qlistp, Qmarkerp, Qnil; | |
2f1205e0 | 617 | extern Lisp_Object Qnumberp, Qstringp, Qsymbolp, Qt, Qvectorp; |
3e0b94e7 | 618 | extern Lisp_Object Qbool_vector_p; |
84575e67 | 619 | extern Lisp_Object Qvector_or_char_table_p, Qwholenump; |
8f3a2c26 | 620 | extern Lisp_Object Qwindow; |
84575e67 PE |
621 | extern _Noreturn Lisp_Object wrong_type_argument (Lisp_Object, Lisp_Object); |
622 | ||
623 | /* Defined in emacs.c. */ | |
f58269c4 | 624 | extern bool might_dump; |
73bfe891 PE |
625 | /* True means Emacs has already been initialized. |
626 | Used during startup to detect startup of dumped Emacs. */ | |
627 | extern bool initialized; | |
84575e67 PE |
628 | |
629 | /* Defined in eval.c. */ | |
630 | extern Lisp_Object Qautoload; | |
631 | ||
632 | /* Defined in floatfns.c. */ | |
633 | extern double extract_float (Lisp_Object); | |
634 | ||
635 | /* Defined in process.c. */ | |
636 | extern Lisp_Object Qprocessp; | |
637 | ||
638 | /* Defined in window.c. */ | |
639 | extern Lisp_Object Qwindowp; | |
640 | ||
641 | /* Defined in xdisp.c. */ | |
642 | extern Lisp_Object Qimage; | |
7b1123d8 | 643 | \f |
49609976 BT |
644 | /* Extract A's type. */ |
645 | INLINE enum Lisp_Type | |
646 | XTYPE (Lisp_Object o) | |
647 | { | |
648 | if (INTEGERP (o)) | |
649 | return Lisp_Int; | |
650 | else if (SYMBOLP (o)) | |
651 | return Lisp_Symbol; | |
652 | else if (MISCP (o)) | |
653 | return Lisp_Misc; | |
654 | else if (STRINGP (o)) | |
655 | return Lisp_String; | |
656 | else if (VECTORLIKEP (o)) | |
657 | return Lisp_Vectorlike; | |
658 | else if (CONSP (o)) | |
659 | return Lisp_Cons; | |
660 | else if (FLOATP (o)) | |
661 | return Lisp_Float; | |
662 | else | |
01099ad1 | 663 | return Lisp_Other; |
49609976 | 664 | } |
84575e67 | 665 | |
99a3d506 | 666 | /* Extract a value or address from a Lisp_Object. */ |
3cfe6dfd | 667 | |
00382e8b | 668 | INLINE struct Lisp_Vector * |
84575e67 PE |
669 | XVECTOR (Lisp_Object a) |
670 | { | |
671 | eassert (VECTORLIKEP (a)); | |
49609976 | 672 | return SMOB_PTR (a); |
84575e67 | 673 | } |
c9f6631c | 674 | |
00382e8b | 675 | INLINE struct Lisp_String * |
84575e67 PE |
676 | XSTRING (Lisp_Object a) |
677 | { | |
678 | eassert (STRINGP (a)); | |
49609976 | 679 | return SMOB_PTR (a); |
84575e67 | 680 | } |
ce5b453a | 681 | |
84575e67 | 682 | LISP_MACRO_DEFUN (XSYMBOL, struct Lisp_Symbol *, (Lisp_Object a), (a)) |
ce5b453a | 683 | |
7c06ac2b | 684 | /* Pseudovector types. */ |
84575e67 | 685 | |
00382e8b | 686 | INLINE struct Lisp_Process * |
84575e67 PE |
687 | XPROCESS (Lisp_Object a) |
688 | { | |
689 | eassert (PROCESSP (a)); | |
49609976 | 690 | return SMOB_PTR (a); |
84575e67 PE |
691 | } |
692 | ||
00382e8b | 693 | INLINE struct window * |
84575e67 PE |
694 | XWINDOW (Lisp_Object a) |
695 | { | |
696 | eassert (WINDOWP (a)); | |
49609976 | 697 | return SMOB_PTR (a); |
84575e67 PE |
698 | } |
699 | ||
00382e8b | 700 | INLINE struct terminal * |
84575e67 PE |
701 | XTERMINAL (Lisp_Object a) |
702 | { | |
49609976 | 703 | return SMOB_PTR (a); |
84575e67 PE |
704 | } |
705 | ||
00382e8b | 706 | INLINE struct Lisp_Subr * |
84575e67 PE |
707 | XSUBR (Lisp_Object a) |
708 | { | |
709 | eassert (SUBRP (a)); | |
49609976 | 710 | return SMOB_PTR (a); |
84575e67 PE |
711 | } |
712 | ||
00382e8b | 713 | INLINE struct buffer * |
84575e67 PE |
714 | XBUFFER (Lisp_Object a) |
715 | { | |
716 | eassert (BUFFERP (a)); | |
49609976 | 717 | return SMOB_PTR (a); |
84575e67 PE |
718 | } |
719 | ||
00382e8b | 720 | INLINE struct Lisp_Char_Table * |
84575e67 PE |
721 | XCHAR_TABLE (Lisp_Object a) |
722 | { | |
723 | eassert (CHAR_TABLE_P (a)); | |
49609976 | 724 | return SMOB_PTR (a); |
84575e67 PE |
725 | } |
726 | ||
00382e8b | 727 | INLINE struct Lisp_Sub_Char_Table * |
84575e67 PE |
728 | XSUB_CHAR_TABLE (Lisp_Object a) |
729 | { | |
730 | eassert (SUB_CHAR_TABLE_P (a)); | |
49609976 | 731 | return SMOB_PTR (a); |
84575e67 PE |
732 | } |
733 | ||
00382e8b | 734 | INLINE struct Lisp_Bool_Vector * |
84575e67 PE |
735 | XBOOL_VECTOR (Lisp_Object a) |
736 | { | |
737 | eassert (BOOL_VECTOR_P (a)); | |
49609976 | 738 | return SMOB_PTR (a); |
84575e67 PE |
739 | } |
740 | ||
00382e8b | 741 | INLINE Lisp_Object |
84575e67 PE |
742 | make_lisp_proc (struct Lisp_Process *p) |
743 | { | |
49609976 | 744 | return scm_new_smob (lisp_vectorlike_tag, (scm_t_bits) p); |
84575e67 PE |
745 | } |
746 | ||
ff55dfe8 | 747 | #define XSETINT(a, b) ((a) = make_number (b)) |
84575e67 | 748 | #define XSETFASTINT(a, b) ((a) = make_natnum (b)) |
49609976 BT |
749 | #define XSETVECTOR(a, b) ((a) = (b)->header.self) |
750 | #define XSETSTRING(a, b) ((a) = (b)->self) | |
751 | #define XSETSYMBOL(a, b) ((a) = (b)->self) | |
49609976 | 752 | #define XSETMISC(a, b) (a) = ((union Lisp_Misc *) (b))->u_any.self |
7c06ac2b RS |
753 | |
754 | /* Pseudovector types. */ | |
c9f6631c | 755 | |
914adc42 DA |
756 | #define XSETPVECTYPE(v, code) \ |
757 | ((v)->header.size |= PSEUDOVECTOR_FLAG | ((code) << PSEUDOVECTOR_AREA_BITS)) | |
758 | #define XSETPVECTYPESIZE(v, code, lispsize, restsize) \ | |
ee28be33 | 759 | ((v)->header.size = (PSEUDOVECTOR_FLAG \ |
914adc42 DA |
760 | | ((code) << PSEUDOVECTOR_AREA_BITS) \ |
761 | | ((restsize) << PSEUDOVECTOR_SIZE_BITS) \ | |
762 | | (lispsize))) | |
aa0b0087 PE |
763 | |
764 | /* The cast to struct vectorlike_header * avoids aliasing issues. */ | |
7c06ac2b | 765 | #define XSETPSEUDOVECTOR(a, b, code) \ |
7555c33f SM |
766 | XSETTYPED_PSEUDOVECTOR (a, b, \ |
767 | (((struct vectorlike_header *) \ | |
49609976 | 768 | SCM_SMOB_DATA (a)) \ |
7555c33f SM |
769 | ->size), \ |
770 | code) | |
eab3844f | 771 | #define XSETTYPED_PSEUDOVECTOR(a, b, size, code) \ |
beb9f745 | 772 | (XSETVECTOR (a, b), \ |
eab3844f | 773 | eassert ((size & (PSEUDOVECTOR_FLAG | PVEC_TYPE_MASK)) \ |
914adc42 | 774 | == (PSEUDOVECTOR_FLAG | (code << PSEUDOVECTOR_AREA_BITS)))) |
aa0b0087 | 775 | |
7c06ac2b RS |
776 | #define XSETWINDOW_CONFIGURATION(a, b) \ |
777 | (XSETPSEUDOVECTOR (a, b, PVEC_WINDOW_CONFIGURATION)) | |
778 | #define XSETPROCESS(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_PROCESS)) | |
779 | #define XSETWINDOW(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_WINDOW)) | |
49e49fb5 | 780 | #define XSETTERMINAL(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_TERMINAL)) |
914adc42 | 781 | #define XSETSUBR(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_SUBR)) |
7c06ac2b | 782 | #define XSETCOMPILED(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_COMPILED)) |
99a3d506 | 783 | #define XSETBUFFER(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_BUFFER)) |
608ff985 RS |
784 | #define XSETCHAR_TABLE(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_CHAR_TABLE)) |
785 | #define XSETBOOL_VECTOR(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_BOOL_VECTOR)) | |
1842abb2 | 786 | #define XSETSUB_CHAR_TABLE(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_SUB_CHAR_TABLE)) |
c9f6631c | 787 | |
c8a39089 KS |
788 | /* Type checking. */ |
789 | ||
40f5d4b7 PE |
790 | LISP_MACRO_DEFUN_VOID (CHECK_TYPE, |
791 | (int ok, Lisp_Object predicate, Lisp_Object x), | |
792 | (ok, predicate, x)) | |
c8a39089 | 793 | |
c644523b | 794 | /* Deprecated and will be removed soon. */ |
e34f7f79 DA |
795 | |
796 | #define INTERNAL_FIELD(field) field ## _ | |
c8a39089 | 797 | |
5f6bf5fe | 798 | /* See the macros in intervals.h. */ |
e221eae3 JA |
799 | |
800 | typedef struct interval *INTERVAL; | |
801 | ||
84575e67 PE |
802 | LISP_MACRO_DEFUN (XCAR, Lisp_Object, (Lisp_Object c), (c)) |
803 | LISP_MACRO_DEFUN (XCDR, Lisp_Object, (Lisp_Object c), (c)) | |
f3fbd155 KR |
804 | |
805 | /* Use these to set the fields of a cons cell. | |
806 | ||
807 | Note that both arguments may refer to the same object, so 'n' | |
84575e67 | 808 | should not be read after 'c' is first modified. */ |
00382e8b | 809 | INLINE void |
84575e67 PE |
810 | XSETCAR (Lisp_Object c, Lisp_Object n) |
811 | { | |
e642c718 | 812 | scm_set_car_x (c, n); |
84575e67 | 813 | } |
00382e8b | 814 | INLINE void |
84575e67 PE |
815 | XSETCDR (Lisp_Object c, Lisp_Object n) |
816 | { | |
e642c718 | 817 | scm_set_cdr_x (c, n); |
84575e67 | 818 | } |
f3fbd155 | 819 | |
b7acde90 | 820 | /* Take the car or cdr of something whose type is not known. */ |
00382e8b | 821 | INLINE Lisp_Object |
84575e67 PE |
822 | CAR (Lisp_Object c) |
823 | { | |
824 | return (CONSP (c) ? XCAR (c) | |
825 | : NILP (c) ? Qnil | |
826 | : wrong_type_argument (Qlistp, c)); | |
827 | } | |
00382e8b | 828 | INLINE Lisp_Object |
84575e67 PE |
829 | CDR (Lisp_Object c) |
830 | { | |
831 | return (CONSP (c) ? XCDR (c) | |
832 | : NILP (c) ? Qnil | |
833 | : wrong_type_argument (Qlistp, c)); | |
834 | } | |
b7acde90 | 835 | |
c8a39089 | 836 | /* Take the car or cdr of something whose type is not known. */ |
00382e8b | 837 | INLINE Lisp_Object |
84575e67 PE |
838 | CAR_SAFE (Lisp_Object c) |
839 | { | |
840 | return CONSP (c) ? XCAR (c) : Qnil; | |
841 | } | |
00382e8b | 842 | INLINE Lisp_Object |
84575e67 PE |
843 | CDR_SAFE (Lisp_Object c) |
844 | { | |
845 | return CONSP (c) ? XCDR (c) : Qnil; | |
846 | } | |
35f464a7 | 847 | |
84575e67 | 848 | /* In a string or vector, the sign bit of the `size' is the gc mark bit. */ |
35f464a7 | 849 | |
84575e67 PE |
850 | struct Lisp_String |
851 | { | |
49609976 | 852 | Lisp_Object self; |
84575e67 PE |
853 | ptrdiff_t size; |
854 | ptrdiff_t size_byte; | |
855 | INTERVAL intervals; /* Text properties in this string. */ | |
856 | unsigned char *data; | |
857 | }; | |
d8fc7ce4 | 858 | |
84575e67 | 859 | /* True if STR is a multibyte string. */ |
00382e8b | 860 | INLINE bool |
84575e67 PE |
861 | STRING_MULTIBYTE (Lisp_Object str) |
862 | { | |
863 | return 0 <= XSTRING (str)->size_byte; | |
864 | } | |
35f464a7 | 865 | |
c9d624c6 PE |
866 | /* An upper bound on the number of bytes in a Lisp string, not |
867 | counting the terminating null. This a tight enough bound to | |
868 | prevent integer overflow errors that would otherwise occur during | |
869 | string size calculations. A string cannot contain more bytes than | |
870 | a fixnum can represent, nor can it be so long that C pointer | |
871 | arithmetic stops working on the string plus its terminating null. | |
872 | Although the actual size limit (see STRING_BYTES_MAX in alloc.c) | |
873 | may be a bit smaller than STRING_BYTES_BOUND, calculating it here | |
874 | would expose alloc.c internal details that we'd rather keep | |
03a660a6 PE |
875 | private. |
876 | ||
7b1123d8 PE |
877 | This is a macro for use in static initializers. The cast to |
878 | ptrdiff_t ensures that the macro is signed. */ | |
c9d624c6 | 879 | #define STRING_BYTES_BOUND \ |
88fb40b4 | 880 | ((ptrdiff_t) min (MOST_POSITIVE_FIXNUM, min (SIZE_MAX, PTRDIFF_MAX) - 1)) |
d1f3d2af | 881 | |
491c2516 | 882 | /* Mark STR as a unibyte string. */ |
96c06863 PE |
883 | #define STRING_SET_UNIBYTE(STR) \ |
884 | do { \ | |
885 | if (EQ (STR, empty_multibyte_string)) \ | |
886 | (STR) = empty_unibyte_string; \ | |
887 | else \ | |
888 | XSTRING (STR)->size_byte = -1; \ | |
889 | } while (false) | |
491c2516 | 890 | |
94ef4d69 KH |
891 | /* Mark STR as a multibyte string. Assure that STR contains only |
892 | ASCII characters in advance. */ | |
96c06863 PE |
893 | #define STRING_SET_MULTIBYTE(STR) \ |
894 | do { \ | |
895 | if (EQ (STR, empty_unibyte_string)) \ | |
896 | (STR) = empty_multibyte_string; \ | |
897 | else \ | |
898 | XSTRING (STR)->size_byte = XSTRING (STR)->size; \ | |
899 | } while (false) | |
94ef4d69 | 900 | |
84575e67 | 901 | /* Convenience functions for dealing with Lisp strings. */ |
3cfe6dfd | 902 | |
00382e8b | 903 | INLINE unsigned char * |
84575e67 PE |
904 | SDATA (Lisp_Object string) |
905 | { | |
906 | return XSTRING (string)->data; | |
907 | } | |
00382e8b | 908 | INLINE char * |
84575e67 PE |
909 | SSDATA (Lisp_Object string) |
910 | { | |
911 | /* Avoid "differ in sign" warnings. */ | |
912 | return (char *) SDATA (string); | |
913 | } | |
00382e8b | 914 | INLINE unsigned char |
84575e67 PE |
915 | SREF (Lisp_Object string, ptrdiff_t index) |
916 | { | |
917 | return SDATA (string)[index]; | |
918 | } | |
00382e8b | 919 | INLINE void |
84575e67 PE |
920 | SSET (Lisp_Object string, ptrdiff_t index, unsigned char new) |
921 | { | |
922 | SDATA (string)[index] = new; | |
923 | } | |
00382e8b | 924 | INLINE ptrdiff_t |
84575e67 PE |
925 | SCHARS (Lisp_Object string) |
926 | { | |
927 | return XSTRING (string)->size; | |
928 | } | |
fbe9e0b9 | 929 | |
00382e8b | 930 | INLINE ptrdiff_t |
84575e67 PE |
931 | STRING_BYTES (struct Lisp_String *s) |
932 | { | |
84575e67 | 933 | return s->size_byte < 0 ? s->size : s->size_byte; |
84575e67 | 934 | } |
fbe9e0b9 | 935 | |
00382e8b | 936 | INLINE ptrdiff_t |
84575e67 PE |
937 | SBYTES (Lisp_Object string) |
938 | { | |
939 | return STRING_BYTES (XSTRING (string)); | |
940 | } | |
00382e8b | 941 | INLINE void |
84575e67 PE |
942 | STRING_SET_CHARS (Lisp_Object string, ptrdiff_t newsize) |
943 | { | |
944 | XSTRING (string)->size = newsize; | |
945 | } | |
3cfe6dfd | 946 | |
aa0b0087 | 947 | /* Header of vector-like objects. This documents the layout constraints on |
914adc42 | 948 | vectors and pseudovectors (objects of PVEC_xxx subtype). It also prevents |
84575e67 PE |
949 | compilers from being fooled by Emacs's type punning: XSETPSEUDOVECTOR |
950 | and PSEUDOVECTORP cast their pointers to struct vectorlike_header *, | |
aa0b0087 PE |
951 | because when two such pointers potentially alias, a compiler won't |
952 | incorrectly reorder loads and stores to their size fields. See | |
df5b4930 | 953 | Bug#8546. */ |
b102ceb1 | 954 | struct vectorlike_header |
3cfe6dfd | 955 | { |
49609976 BT |
956 | Lisp_Object self; |
957 | ||
958 | /* This field contains various pieces of information: | |
2bdeb39a | 959 | - The second bit (PSEUDOVECTOR_FLAG) indicates whether this is a plain |
ee28be33 SM |
960 | vector (0) or a pseudovector (1). |
961 | - If PSEUDOVECTOR_FLAG is 0, the rest holds the size (number | |
962 | of slots) of the vector. | |
914adc42 DA |
963 | - If PSEUDOVECTOR_FLAG is 1, the rest is subdivided into three fields: |
964 | - a) pseudovector subtype held in PVEC_TYPE_MASK field; | |
965 | - b) number of Lisp_Objects slots at the beginning of the object | |
966 | held in PSEUDOVECTOR_SIZE_MASK field. These objects are always | |
967 | traced by the GC; | |
968 | - c) size of the rest fields held in PSEUDOVECTOR_REST_MASK and | |
969 | measured in word_size units. Rest fields may also include | |
970 | Lisp_Objects, but these objects usually needs some special treatment | |
971 | during GC. | |
972 | There are some exceptions. For PVEC_FREE, b) is always zero. For | |
973 | PVEC_BOOL_VECTOR and PVEC_SUBR, both b) and c) are always zero. | |
974 | Current layout limits the pseudovectors to 63 PVEC_xxx subtypes, | |
975 | 4095 Lisp_Objects in GC-ed area and 4095 word-sized other slots. */ | |
d311d28c | 976 | ptrdiff_t size; |
eab3844f PE |
977 | }; |
978 | ||
91f2d272 | 979 | /* A regular vector is just a header plus an array of Lisp_Objects. */ |
663e2b3f | 980 | |
eab3844f PE |
981 | struct Lisp_Vector |
982 | { | |
b102ceb1 | 983 | struct vectorlike_header header; |
91f2d272 PE |
984 | Lisp_Object contents[FLEXIBLE_ARRAY_MEMBER]; |
985 | }; | |
0a858ebf | 986 | |
91f2d272 PE |
987 | /* C11 prohibits alignof (struct Lisp_Vector), so compute it manually. */ |
988 | enum | |
989 | { | |
990 | ALIGNOF_STRUCT_LISP_VECTOR | |
991 | = alignof (union { struct vectorlike_header a; Lisp_Object b; }) | |
3cfe6dfd JB |
992 | }; |
993 | ||
91f2d272 | 994 | /* A boolvector is a kind of vectorlike, with contents like a string. */ |
663e2b3f DA |
995 | |
996 | struct Lisp_Bool_Vector | |
997 | { | |
998 | /* HEADER.SIZE is the vector's size field. It doesn't have the real size, | |
999 | just the subtype information. */ | |
1000 | struct vectorlike_header header; | |
1001 | /* This is the size in bits. */ | |
1002 | EMACS_INT size; | |
2cf00efc | 1003 | /* The actual bits, packed into bytes. |
75360f19 | 1004 | Zeros fill out the last word if needed. |
2cf00efc PE |
1005 | The bits are in little-endian order in the bytes, and |
1006 | the bytes are in little-endian order in the words. */ | |
df5b4930 | 1007 | bits_word data[FLEXIBLE_ARRAY_MEMBER]; |
663e2b3f DA |
1008 | }; |
1009 | ||
1c0a7493 PE |
1010 | INLINE EMACS_INT |
1011 | bool_vector_size (Lisp_Object a) | |
1012 | { | |
1013 | EMACS_INT size = XBOOL_VECTOR (a)->size; | |
1014 | eassume (0 <= size); | |
1015 | return size; | |
1016 | } | |
1017 | ||
df5b4930 PE |
1018 | INLINE bits_word * |
1019 | bool_vector_data (Lisp_Object a) | |
1020 | { | |
1021 | return XBOOL_VECTOR (a)->data; | |
1022 | } | |
1023 | ||
1024 | INLINE unsigned char * | |
1025 | bool_vector_uchar_data (Lisp_Object a) | |
1026 | { | |
1027 | return (unsigned char *) bool_vector_data (a); | |
1028 | } | |
1029 | ||
2cf00efc | 1030 | /* The number of data words and bytes in a bool vector with SIZE bits. */ |
df5b4930 PE |
1031 | |
1032 | INLINE EMACS_INT | |
1033 | bool_vector_words (EMACS_INT size) | |
1034 | { | |
1035 | eassume (0 <= size && size <= EMACS_INT_MAX - (BITS_PER_BITS_WORD - 1)); | |
1036 | return (size + BITS_PER_BITS_WORD - 1) / BITS_PER_BITS_WORD; | |
1037 | } | |
1038 | ||
2cf00efc PE |
1039 | INLINE EMACS_INT |
1040 | bool_vector_bytes (EMACS_INT size) | |
1041 | { | |
1042 | eassume (0 <= size && size <= EMACS_INT_MAX - (BITS_PER_BITS_WORD - 1)); | |
1043 | return (size + BOOL_VECTOR_BITS_PER_CHAR - 1) / BOOL_VECTOR_BITS_PER_CHAR; | |
1044 | } | |
1045 | ||
df5b4930 PE |
1046 | /* True if A's Ith bit is set. */ |
1047 | ||
1048 | INLINE bool | |
1049 | bool_vector_bitref (Lisp_Object a, EMACS_INT i) | |
1050 | { | |
1051 | eassume (0 <= i && i < bool_vector_size (a)); | |
1052 | return !! (bool_vector_uchar_data (a)[i / BOOL_VECTOR_BITS_PER_CHAR] | |
1053 | & (1 << (i % BOOL_VECTOR_BITS_PER_CHAR))); | |
1054 | } | |
1055 | ||
1056 | INLINE Lisp_Object | |
1057 | bool_vector_ref (Lisp_Object a, EMACS_INT i) | |
1058 | { | |
1059 | return bool_vector_bitref (a, i) ? Qt : Qnil; | |
1060 | } | |
1061 | ||
1062 | /* Set A's Ith bit to B. */ | |
1063 | ||
1064 | INLINE void | |
1065 | bool_vector_set (Lisp_Object a, EMACS_INT i, bool b) | |
1066 | { | |
1067 | unsigned char *addr; | |
1068 | ||
1069 | eassume (0 <= i && i < bool_vector_size (a)); | |
1070 | addr = &bool_vector_uchar_data (a)[i / BOOL_VECTOR_BITS_PER_CHAR]; | |
1071 | ||
1072 | if (b) | |
1073 | *addr |= 1 << (i % BOOL_VECTOR_BITS_PER_CHAR); | |
1074 | else | |
1075 | *addr &= ~ (1 << (i % BOOL_VECTOR_BITS_PER_CHAR)); | |
1076 | } | |
1077 | ||
663e2b3f DA |
1078 | /* Some handy constants for calculating sizes |
1079 | and offsets, mostly of vectorlike objects. */ | |
1080 | ||
1081 | enum | |
1082 | { | |
91f2d272 | 1083 | header_size = offsetof (struct Lisp_Vector, contents), |
663e2b3f DA |
1084 | bool_header_size = offsetof (struct Lisp_Bool_Vector, data), |
1085 | word_size = sizeof (Lisp_Object) | |
1086 | }; | |
1087 | ||
84575e67 PE |
1088 | /* Conveniences for dealing with Lisp arrays. */ |
1089 | ||
00382e8b | 1090 | INLINE Lisp_Object |
84575e67 PE |
1091 | AREF (Lisp_Object array, ptrdiff_t idx) |
1092 | { | |
91f2d272 | 1093 | return XVECTOR (array)->contents[idx]; |
84575e67 PE |
1094 | } |
1095 | ||
00382e8b | 1096 | INLINE Lisp_Object * |
84575e67 PE |
1097 | aref_addr (Lisp_Object array, ptrdiff_t idx) |
1098 | { | |
91f2d272 | 1099 | return & XVECTOR (array)->contents[idx]; |
84575e67 PE |
1100 | } |
1101 | ||
00382e8b | 1102 | INLINE ptrdiff_t |
84575e67 PE |
1103 | ASIZE (Lisp_Object array) |
1104 | { | |
1105 | return XVECTOR (array)->header.size; | |
1106 | } | |
1107 | ||
00382e8b | 1108 | INLINE void |
84575e67 PE |
1109 | ASET (Lisp_Object array, ptrdiff_t idx, Lisp_Object val) |
1110 | { | |
1111 | eassert (0 <= idx && idx < ASIZE (array)); | |
91f2d272 | 1112 | XVECTOR (array)->contents[idx] = val; |
84575e67 PE |
1113 | } |
1114 | ||
00382e8b | 1115 | INLINE void |
84575e67 PE |
1116 | gc_aset (Lisp_Object array, ptrdiff_t idx, Lisp_Object val) |
1117 | { | |
1118 | /* Like ASET, but also can be used in the garbage collector: | |
1119 | sweep_weak_table calls set_hash_key etc. while the table is marked. */ | |
f2b0b0d1 | 1120 | eassert (0 <= idx && idx < (ASIZE (array))); |
91f2d272 | 1121 | XVECTOR (array)->contents[idx] = val; |
84575e67 PE |
1122 | } |
1123 | ||
94225242 | 1124 | /* If a struct is made to look like a vector, this macro returns the length |
4115d3f7 | 1125 | of the shortest vector that would hold that struct. */ |
663e2b3f DA |
1126 | |
1127 | #define VECSIZE(type) \ | |
1128 | ((sizeof (type) - header_size + word_size - 1) / word_size) | |
94225242 | 1129 | |
d0ebe33a SM |
1130 | /* Like VECSIZE, but used when the pseudo-vector has non-Lisp_Object fields |
1131 | at the end and we need to compute the number of Lisp_Object fields (the | |
1132 | ones that the GC needs to trace). */ | |
663e2b3f DA |
1133 | |
1134 | #define PSEUDOVECSIZE(type, nonlispfield) \ | |
1135 | ((offsetof (type, nonlispfield) - header_size) / word_size) | |
d0ebe33a | 1136 | |
ea204efb PE |
1137 | /* Compute A OP B, using the unsigned comparison operator OP. A and B |
1138 | should be integer expressions. This is not the same as | |
53964682 | 1139 | mathematical comparison; for example, UNSIGNED_CMP (0, <, -1) |
96c06863 | 1140 | returns true. For efficiency, prefer plain unsigned comparison if A |
ea204efb PE |
1141 | and B's sizes both fit (after integer promotion). */ |
1142 | #define UNSIGNED_CMP(a, op, b) \ | |
1143 | (max (sizeof ((a) + 0), sizeof ((b) + 0)) <= sizeof (unsigned) \ | |
1144 | ? ((a) + (unsigned) 0) op ((b) + (unsigned) 0) \ | |
1145 | : ((a) + (uintmax_t) 0) op ((b) + (uintmax_t) 0)) | |
1146 | ||
96c06863 | 1147 | /* True iff C is an ASCII character. */ |
ea204efb | 1148 | #define ASCII_CHAR_P(c) UNSIGNED_CMP (c, <, 0x80) |
15206ed9 | 1149 | |
84575e67 PE |
1150 | /* A char-table is a kind of vectorlike, with contents are like a |
1151 | vector but with a few other slots. For some purposes, it makes | |
1152 | sense to handle a char-table with type struct Lisp_Vector. An | |
1153 | element of a char table can be any Lisp objects, but if it is a sub | |
1154 | char-table, we treat it a table that contains information of a | |
1155 | specific range of characters. A sub char-table has the same | |
1156 | structure as a vector. A sub char table appears only in an element | |
1157 | of a char-table, and there's no way to access it directly from | |
1158 | Emacs Lisp program. */ | |
1842abb2 | 1159 | |
03a660a6 PE |
1160 | enum CHARTAB_SIZE_BITS |
1161 | { | |
1162 | CHARTAB_SIZE_BITS_0 = 6, | |
1163 | CHARTAB_SIZE_BITS_1 = 4, | |
1164 | CHARTAB_SIZE_BITS_2 = 5, | |
1165 | CHARTAB_SIZE_BITS_3 = 7 | |
1166 | }; | |
1842abb2 KH |
1167 | |
1168 | extern const int chartab_size[4]; | |
1169 | ||
608ff985 RS |
1170 | struct Lisp_Char_Table |
1171 | { | |
eab3844f | 1172 | /* HEADER.SIZE is the vector's size field, which also holds the |
608ff985 | 1173 | pseudovector type information. It holds the size, too. |
c73bd236 MB |
1174 | The size counts the defalt, parent, purpose, ascii, |
1175 | contents, and extras slots. */ | |
b102ceb1 | 1176 | struct vectorlike_header header; |
1842abb2 | 1177 | |
608ff985 RS |
1178 | /* This holds a default value, |
1179 | which is used whenever the value for a specific character is nil. */ | |
1180 | Lisp_Object defalt; | |
ea724a01 | 1181 | |
8f924df7 KH |
1182 | /* This points to another char table, which we inherit from when the |
1183 | value for a specific character is nil. The `defalt' slot takes | |
1184 | precedence over this. */ | |
608ff985 | 1185 | Lisp_Object parent; |
1842abb2 | 1186 | |
8f924df7 KH |
1187 | /* This is a symbol which says what kind of use this char-table is |
1188 | meant for. */ | |
7f73dc9d | 1189 | Lisp_Object purpose; |
1842abb2 | 1190 | |
8f924df7 KH |
1191 | /* The bottom sub char-table for characters of the range 0..127. It |
1192 | is nil if none of ASCII character has a specific value. */ | |
1193 | Lisp_Object ascii; | |
1842abb2 | 1194 | |
8f924df7 | 1195 | Lisp_Object contents[(1 << CHARTAB_SIZE_BITS_0)]; |
1842abb2 | 1196 | |
8f924df7 | 1197 | /* These hold additional data. It is a vector. */ |
fbe9e0b9 | 1198 | Lisp_Object extras[FLEXIBLE_ARRAY_MEMBER]; |
608ff985 RS |
1199 | }; |
1200 | ||
1842abb2 | 1201 | struct Lisp_Sub_Char_Table |
8f924df7 | 1202 | { |
eab3844f | 1203 | /* HEADER.SIZE is the vector's size field, which also holds the |
8f924df7 | 1204 | pseudovector type information. It holds the size, too. */ |
b102ceb1 | 1205 | struct vectorlike_header header; |
1842abb2 | 1206 | |
8f924df7 | 1207 | /* Depth of this sub char-table. It should be 1, 2, or 3. A sub |
78edd3b7 | 1208 | char-table of depth 1 contains 16 elements, and each element |
8f924df7 KH |
1209 | covers 4096 (128*32) characters. A sub char-table of depth 2 |
1210 | contains 32 elements, and each element covers 128 characters. A | |
1211 | sub char-table of depth 3 contains 128 elements, and each element | |
1212 | is for one character. */ | |
1213 | Lisp_Object depth; | |
1842abb2 | 1214 | |
8f924df7 KH |
1215 | /* Minimum character covered by the sub char-table. */ |
1216 | Lisp_Object min_char; | |
1842abb2 | 1217 | |
34dabdb7 | 1218 | /* Use set_sub_char_table_contents to set this. */ |
fbe9e0b9 | 1219 | Lisp_Object contents[FLEXIBLE_ARRAY_MEMBER]; |
8f924df7 | 1220 | }; |
608ff985 | 1221 | |
00382e8b | 1222 | INLINE Lisp_Object |
84575e67 PE |
1223 | CHAR_TABLE_REF_ASCII (Lisp_Object ct, ptrdiff_t idx) |
1224 | { | |
1225 | struct Lisp_Char_Table *tbl = NULL; | |
1226 | Lisp_Object val; | |
1227 | do | |
1228 | { | |
1229 | tbl = tbl ? XCHAR_TABLE (tbl->parent) : XCHAR_TABLE (ct); | |
1230 | val = (! SUB_CHAR_TABLE_P (tbl->ascii) ? tbl->ascii | |
1231 | : XSUB_CHAR_TABLE (tbl->ascii)->contents[idx]); | |
1232 | if (NILP (val)) | |
1233 | val = tbl->defalt; | |
1234 | } | |
1235 | while (NILP (val) && ! NILP (tbl->parent)); | |
1236 | ||
1237 | return val; | |
1238 | } | |
1239 | ||
1240 | /* Almost equivalent to Faref (CT, IDX) with optimization for ASCII | |
1241 | characters. Do not check validity of CT. */ | |
00382e8b | 1242 | INLINE Lisp_Object |
84575e67 PE |
1243 | CHAR_TABLE_REF (Lisp_Object ct, int idx) |
1244 | { | |
1245 | return (ASCII_CHAR_P (idx) | |
1246 | ? CHAR_TABLE_REF_ASCII (ct, idx) | |
1247 | : char_table_ref (ct, idx)); | |
1248 | } | |
1249 | ||
1250 | /* Equivalent to Faset (CT, IDX, VAL) with optimization for ASCII and | |
1251 | 8-bit European characters. Do not check validity of CT. */ | |
00382e8b | 1252 | INLINE void |
84575e67 PE |
1253 | CHAR_TABLE_SET (Lisp_Object ct, int idx, Lisp_Object val) |
1254 | { | |
1255 | if (ASCII_CHAR_P (idx) && SUB_CHAR_TABLE_P (XCHAR_TABLE (ct)->ascii)) | |
1256 | set_sub_char_table_contents (XCHAR_TABLE (ct)->ascii, idx, val); | |
1257 | else | |
1258 | char_table_set (ct, idx, val); | |
1259 | } | |
1260 | ||
7c06ac2b RS |
1261 | /* This structure describes a built-in function. |
1262 | It is generated by the DEFUN macro only. | |
914adc42 | 1263 | defsubr makes it into a Lisp object. */ |
e98227af | 1264 | |
3cfe6dfd JB |
1265 | struct Lisp_Subr |
1266 | { | |
914adc42 | 1267 | struct vectorlike_header header; |
c0f2f16b DN |
1268 | union { |
1269 | Lisp_Object (*a0) (void); | |
1270 | Lisp_Object (*a1) (Lisp_Object); | |
1271 | Lisp_Object (*a2) (Lisp_Object, Lisp_Object); | |
1272 | Lisp_Object (*a3) (Lisp_Object, Lisp_Object, Lisp_Object); | |
1273 | Lisp_Object (*a4) (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); | |
1274 | Lisp_Object (*a5) (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); | |
1275 | Lisp_Object (*a6) (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); | |
1276 | Lisp_Object (*a7) (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); | |
1277 | Lisp_Object (*a8) (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); | |
d5273788 | 1278 | Lisp_Object (*aUNEVALLED) (Lisp_Object args); |
f66c7cf8 | 1279 | Lisp_Object (*aMANY) (ptrdiff_t, Lisp_Object *); |
c0f2f16b | 1280 | } function; |
3cfe6dfd | 1281 | short min_args, max_args; |
5e2327cf | 1282 | const char *symbol_name; |
89dc303e DN |
1283 | const char *intspec; |
1284 | const char *doc; | |
3cfe6dfd | 1285 | }; |
5010d3b8 | 1286 | |
03a660a6 PE |
1287 | /* This is the number of slots that every char table must have. This |
1288 | counts the ordinary slots and the top, defalt, parent, and purpose | |
1289 | slots. */ | |
1290 | enum CHAR_TABLE_STANDARD_SLOTS | |
1291 | { | |
fbe9e0b9 | 1292 | CHAR_TABLE_STANDARD_SLOTS = PSEUDOVECSIZE (struct Lisp_Char_Table, extras) |
03a660a6 PE |
1293 | }; |
1294 | ||
1295 | /* Return the number of "extra" slots in the char table CT. */ | |
1296 | ||
00382e8b | 1297 | INLINE int |
84575e67 PE |
1298 | CHAR_TABLE_EXTRA_SLOTS (struct Lisp_Char_Table *ct) |
1299 | { | |
1300 | return ((ct->header.size & PSEUDOVECTOR_SIZE_MASK) | |
1301 | - CHAR_TABLE_STANDARD_SLOTS); | |
1302 | } | |
03a660a6 | 1303 | |
5010d3b8 | 1304 | \f |
a32fa736 GM |
1305 | /*********************************************************************** |
1306 | Symbols | |
1307 | ***********************************************************************/ | |
1308 | ||
1309 | /* Interned state of a symbol. */ | |
1310 | ||
1311 | enum symbol_interned | |
1312 | { | |
1313 | SYMBOL_UNINTERNED = 0, | |
1314 | SYMBOL_INTERNED = 1, | |
1315 | SYMBOL_INTERNED_IN_INITIAL_OBARRAY = 2 | |
1316 | }; | |
1317 | ||
ce5b453a SM |
1318 | enum symbol_redirect |
1319 | { | |
1320 | SYMBOL_PLAINVAL = 4, | |
1321 | SYMBOL_VARALIAS = 1, | |
1322 | SYMBOL_LOCALIZED = 2, | |
9aba6043 | 1323 | SYMBOL_FORWARDED = 3 |
ce5b453a SM |
1324 | }; |
1325 | ||
a32fa736 GM |
1326 | struct Lisp_Symbol |
1327 | { | |
49609976 BT |
1328 | Lisp_Object self; |
1329 | ||
ce5b453a SM |
1330 | /* Indicates where the value can be found: |
1331 | 0 : it's a plain var, the value is in the `value' field. | |
1332 | 1 : it's a varalias, the value is really in the `alias' symbol. | |
1333 | 2 : it's a localized var, the value is in the `blv' object. | |
9aba6043 | 1334 | 3 : it's a forwarding variable, the value is in `forward'. */ |
a6fc3b5c | 1335 | ENUM_BF (symbol_redirect) redirect : 3; |
a32fa736 GM |
1336 | |
1337 | /* Non-zero means symbol is constant, i.e. changing its value | |
ce5b453a SM |
1338 | should signal an error. If the value is 3, then the var |
1339 | can be changed, but only by `defconst'. */ | |
1340 | unsigned constant : 2; | |
a32fa736 GM |
1341 | |
1342 | /* Interned state of the symbol. This is an enumerator from | |
1343 | enum symbol_interned. */ | |
1344 | unsigned interned : 2; | |
1e973bc7 | 1345 | |
96c06863 | 1346 | /* True means that this variable has been explicitly declared |
b9598260 | 1347 | special (with `defvar' etc), and shouldn't be lexically bound. */ |
96c06863 | 1348 | bool_bf declared_special : 1; |
a32fa736 | 1349 | |
e3b83880 SM |
1350 | /* True if pointed to from purespace and hence can't be GC'd. */ |
1351 | bool_bf pinned : 1; | |
1352 | ||
c644523b DA |
1353 | /* The symbol's name, as a Lisp string. */ |
1354 | Lisp_Object name; | |
a32fa736 | 1355 | |
9aba6043 SM |
1356 | /* Value of the symbol or Qunbound if unbound. Which alternative of the |
1357 | union is used depends on the `redirect' field above. */ | |
ce5b453a | 1358 | union { |
c644523b | 1359 | Lisp_Object value; |
ce5b453a SM |
1360 | struct Lisp_Symbol *alias; |
1361 | struct Lisp_Buffer_Local_Value *blv; | |
1362 | union Lisp_Fwd *fwd; | |
1363 | } val; | |
a32fa736 | 1364 | |
eadf1faa | 1365 | /* Function value of the symbol or Qnil if not fboundp. */ |
c644523b | 1366 | Lisp_Object function; |
a32fa736 GM |
1367 | |
1368 | /* The symbol's property list. */ | |
c644523b | 1369 | Lisp_Object plist; |
e2c0561e | 1370 | |
a32fa736 GM |
1371 | /* Next symbol in obarray bucket, if the symbol is interned. */ |
1372 | struct Lisp_Symbol *next; | |
1373 | }; | |
1374 | ||
74d70085 KR |
1375 | /* Value is name of symbol. */ |
1376 | ||
84575e67 | 1377 | LISP_MACRO_DEFUN (SYMBOL_VAL, Lisp_Object, (struct Lisp_Symbol *sym), (sym)) |
ce5b453a | 1378 | |
00382e8b | 1379 | INLINE struct Lisp_Symbol * |
84575e67 PE |
1380 | SYMBOL_ALIAS (struct Lisp_Symbol *sym) |
1381 | { | |
1382 | eassert (sym->redirect == SYMBOL_VARALIAS); | |
1383 | return sym->val.alias; | |
1384 | } | |
00382e8b | 1385 | INLINE struct Lisp_Buffer_Local_Value * |
84575e67 PE |
1386 | SYMBOL_BLV (struct Lisp_Symbol *sym) |
1387 | { | |
1388 | eassert (sym->redirect == SYMBOL_LOCALIZED); | |
1389 | return sym->val.blv; | |
1390 | } | |
00382e8b | 1391 | INLINE union Lisp_Fwd * |
84575e67 PE |
1392 | SYMBOL_FWD (struct Lisp_Symbol *sym) |
1393 | { | |
1394 | eassert (sym->redirect == SYMBOL_FORWARDED); | |
1395 | return sym->val.fwd; | |
1396 | } | |
74d70085 | 1397 | |
84575e67 PE |
1398 | LISP_MACRO_DEFUN_VOID (SET_SYMBOL_VAL, |
1399 | (struct Lisp_Symbol *sym, Lisp_Object v), (sym, v)) | |
a32fa736 | 1400 | |
00382e8b | 1401 | INLINE void |
84575e67 PE |
1402 | SET_SYMBOL_ALIAS (struct Lisp_Symbol *sym, struct Lisp_Symbol *v) |
1403 | { | |
1404 | eassert (sym->redirect == SYMBOL_VARALIAS); | |
1405 | sym->val.alias = v; | |
1406 | } | |
00382e8b | 1407 | INLINE void |
84575e67 PE |
1408 | SET_SYMBOL_BLV (struct Lisp_Symbol *sym, struct Lisp_Buffer_Local_Value *v) |
1409 | { | |
1410 | eassert (sym->redirect == SYMBOL_LOCALIZED); | |
1411 | sym->val.blv = v; | |
1412 | } | |
00382e8b | 1413 | INLINE void |
84575e67 PE |
1414 | SET_SYMBOL_FWD (struct Lisp_Symbol *sym, union Lisp_Fwd *v) |
1415 | { | |
1416 | eassert (sym->redirect == SYMBOL_FORWARDED); | |
1417 | sym->val.fwd = v; | |
1418 | } | |
1419 | ||
00382e8b | 1420 | INLINE Lisp_Object |
84575e67 PE |
1421 | SYMBOL_NAME (Lisp_Object sym) |
1422 | { | |
1423 | return XSYMBOL (sym)->name; | |
1424 | } | |
1425 | ||
1426 | /* Value is true if SYM is an interned symbol. */ | |
1427 | ||
00382e8b | 1428 | INLINE bool |
84575e67 PE |
1429 | SYMBOL_INTERNED_P (Lisp_Object sym) |
1430 | { | |
1431 | return XSYMBOL (sym)->interned != SYMBOL_UNINTERNED; | |
1432 | } | |
a32fa736 | 1433 | |
84575e67 | 1434 | /* Value is true if SYM is interned in initial_obarray. */ |
a32fa736 | 1435 | |
00382e8b | 1436 | INLINE bool |
84575e67 PE |
1437 | SYMBOL_INTERNED_IN_INITIAL_OBARRAY_P (Lisp_Object sym) |
1438 | { | |
1439 | return XSYMBOL (sym)->interned == SYMBOL_INTERNED_IN_INITIAL_OBARRAY; | |
1440 | } | |
a32fa736 GM |
1441 | |
1442 | /* Value is non-zero if symbol is considered a constant, i.e. its | |
1443 | value cannot be changed (there is an exception for keyword symbols, | |
1444 | whose value can be set to the keyword symbol itself). */ | |
1445 | ||
84575e67 | 1446 | LISP_MACRO_DEFUN (SYMBOL_CONSTANT_P, int, (Lisp_Object sym), (sym)) |
a32fa736 | 1447 | |
c644523b | 1448 | #define DEFSYM(sym, name) \ |
96c06863 | 1449 | do { (sym) = intern_c_string ((name)); staticpro (&(sym)); } while (false) |
cd3520a4 | 1450 | |
a32fa736 | 1451 | \f |
5010d3b8 GM |
1452 | /*********************************************************************** |
1453 | Hash Tables | |
1454 | ***********************************************************************/ | |
1455 | ||
1456 | /* The structure of a Lisp hash table. */ | |
1457 | ||
b7432bb2 SM |
1458 | struct hash_table_test |
1459 | { | |
1460 | /* Name of the function used to compare keys. */ | |
1461 | Lisp_Object name; | |
1462 | ||
1463 | /* User-supplied hash function, or nil. */ | |
1464 | Lisp_Object user_hash_function; | |
1465 | ||
1466 | /* User-supplied key comparison function, or nil. */ | |
1467 | Lisp_Object user_cmp_function; | |
1468 | ||
1469 | /* C function to compare two keys. */ | |
1470 | bool (*cmpfn) (struct hash_table_test *t, Lisp_Object, Lisp_Object); | |
1471 | ||
1472 | /* C function to compute hash code. */ | |
1473 | EMACS_UINT (*hashfn) (struct hash_table_test *t, Lisp_Object); | |
1474 | }; | |
1475 | ||
5010d3b8 GM |
1476 | struct Lisp_Hash_Table |
1477 | { | |
eab3844f | 1478 | /* This is for Lisp; the hash table code does not refer to it. */ |
b102ceb1 | 1479 | struct vectorlike_header header; |
e2c0561e | 1480 | |
5010d3b8 GM |
1481 | /* Nil if table is non-weak. Otherwise a symbol describing the |
1482 | weakness of the table. */ | |
1483 | Lisp_Object weak; | |
e2c0561e | 1484 | |
5010d3b8 GM |
1485 | /* When the table is resized, and this is an integer, compute the |
1486 | new size by adding this to the old size. If a float, compute the | |
1487 | new size by multiplying the old size with this factor. */ | |
1488 | Lisp_Object rehash_size; | |
1489 | ||
1490 | /* Resize hash table when number of entries/ table size is >= this | |
1491 | ratio, a float. */ | |
1492 | Lisp_Object rehash_threshold; | |
1493 | ||
5833dd93 EZ |
1494 | /* Vector of hash codes. If hash[I] is nil, this means that the |
1495 | I-th entry is unused. */ | |
5010d3b8 GM |
1496 | Lisp_Object hash; |
1497 | ||
1498 | /* Vector used to chain entries. If entry I is free, next[I] is the | |
1499 | entry number of the next free item. If entry I is non-free, | |
1500 | next[I] is the index of the next entry in the collision chain. */ | |
1501 | Lisp_Object next; | |
1502 | ||
1503 | /* Index of first free entry in free list. */ | |
1504 | Lisp_Object next_free; | |
1505 | ||
1506 | /* Bucket vector. A non-nil entry is the index of the first item in | |
1507 | a collision chain. This vector's size can be larger than the | |
1508 | hash table size to reduce collisions. */ | |
1509 | Lisp_Object index; | |
1510 | ||
878f97ff | 1511 | /* Only the fields above are traced normally by the GC. The ones below |
78edd3b7 | 1512 | `count' are special and are either ignored by the GC or traced in |
878f97ff SM |
1513 | a special way (e.g. because of weakness). */ |
1514 | ||
1515 | /* Number of key/value entries in the table. */ | |
d311d28c | 1516 | ptrdiff_t count; |
878f97ff SM |
1517 | |
1518 | /* Vector of keys and values. The key of item I is found at index | |
1519 | 2 * I, the value is found at index 2 * I + 1. | |
1520 | This is gc_marked specially if the table is weak. */ | |
1521 | Lisp_Object key_and_value; | |
1522 | ||
b7432bb2 SM |
1523 | /* The comparison and hash functions. */ |
1524 | struct hash_table_test test; | |
1525 | ||
6c661ec9 SM |
1526 | /* Next weak hash table if this is a weak hash table. The head |
1527 | of the list is in weak_hash_tables. */ | |
1528 | struct Lisp_Hash_Table *next_weak; | |
5010d3b8 GM |
1529 | }; |
1530 | ||
1531 | ||
00382e8b | 1532 | INLINE struct Lisp_Hash_Table * |
84575e67 PE |
1533 | XHASH_TABLE (Lisp_Object a) |
1534 | { | |
49609976 | 1535 | return SMOB_PTR (a); |
84575e67 | 1536 | } |
5010d3b8 GM |
1537 | |
1538 | #define XSET_HASH_TABLE(VAR, PTR) \ | |
1539 | (XSETPSEUDOVECTOR (VAR, PTR, PVEC_HASH_TABLE)) | |
1540 | ||
00382e8b | 1541 | INLINE bool |
84575e67 PE |
1542 | HASH_TABLE_P (Lisp_Object a) |
1543 | { | |
1544 | return PSEUDOVECTORP (a, PVEC_HASH_TABLE); | |
1545 | } | |
5010d3b8 | 1546 | |
141788b5 | 1547 | /* Value is the key part of entry IDX in hash table H. */ |
00382e8b | 1548 | INLINE Lisp_Object |
84575e67 PE |
1549 | HASH_KEY (struct Lisp_Hash_Table *h, ptrdiff_t idx) |
1550 | { | |
1551 | return AREF (h->key_and_value, 2 * idx); | |
1552 | } | |
141788b5 SM |
1553 | |
1554 | /* Value is the value part of entry IDX in hash table H. */ | |
00382e8b | 1555 | INLINE Lisp_Object |
84575e67 PE |
1556 | HASH_VALUE (struct Lisp_Hash_Table *h, ptrdiff_t idx) |
1557 | { | |
1558 | return AREF (h->key_and_value, 2 * idx + 1); | |
1559 | } | |
141788b5 SM |
1560 | |
1561 | /* Value is the index of the next entry following the one at IDX | |
1562 | in hash table H. */ | |
00382e8b | 1563 | INLINE Lisp_Object |
84575e67 PE |
1564 | HASH_NEXT (struct Lisp_Hash_Table *h, ptrdiff_t idx) |
1565 | { | |
1566 | return AREF (h->next, idx); | |
1567 | } | |
141788b5 SM |
1568 | |
1569 | /* Value is the hash code computed for entry IDX in hash table H. */ | |
00382e8b | 1570 | INLINE Lisp_Object |
84575e67 PE |
1571 | HASH_HASH (struct Lisp_Hash_Table *h, ptrdiff_t idx) |
1572 | { | |
1573 | return AREF (h->hash, idx); | |
1574 | } | |
141788b5 SM |
1575 | |
1576 | /* Value is the index of the element in hash table H that is the | |
1577 | start of the collision list at index IDX in the index vector of H. */ | |
00382e8b | 1578 | INLINE Lisp_Object |
84575e67 PE |
1579 | HASH_INDEX (struct Lisp_Hash_Table *h, ptrdiff_t idx) |
1580 | { | |
1581 | return AREF (h->index, idx); | |
1582 | } | |
141788b5 SM |
1583 | |
1584 | /* Value is the size of hash table H. */ | |
00382e8b | 1585 | INLINE ptrdiff_t |
84575e67 PE |
1586 | HASH_TABLE_SIZE (struct Lisp_Hash_Table *h) |
1587 | { | |
1588 | return ASIZE (h->next); | |
1589 | } | |
141788b5 | 1590 | |
5010d3b8 GM |
1591 | /* Default size for hash tables if not specified. */ |
1592 | ||
03a660a6 | 1593 | enum DEFAULT_HASH_SIZE { DEFAULT_HASH_SIZE = 65 }; |
5010d3b8 GM |
1594 | |
1595 | /* Default threshold specifying when to resize a hash table. The | |
1596 | value gives the ratio of current entries in the hash table and the | |
1597 | size of the hash table. */ | |
1598 | ||
185ee146 | 1599 | static double const DEFAULT_REHASH_THRESHOLD = 0.8; |
5010d3b8 GM |
1600 | |
1601 | /* Default factor by which to increase the size of a hash table. */ | |
1602 | ||
185ee146 | 1603 | static double const DEFAULT_REHASH_SIZE = 1.5; |
5010d3b8 | 1604 | |
04a2d0d3 PE |
1605 | /* Combine two integers X and Y for hashing. The result might not fit |
1606 | into a Lisp integer. */ | |
1607 | ||
00382e8b | 1608 | INLINE EMACS_UINT |
04a2d0d3 PE |
1609 | sxhash_combine (EMACS_UINT x, EMACS_UINT y) |
1610 | { | |
1611 | return (x << 4) + (x >> (BITS_PER_EMACS_INT - 4)) + y; | |
1612 | } | |
1613 | ||
eff1c190 PE |
1614 | /* Hash X, returning a value that fits into a fixnum. */ |
1615 | ||
00382e8b | 1616 | INLINE EMACS_UINT |
eff1c190 PE |
1617 | SXHASH_REDUCE (EMACS_UINT x) |
1618 | { | |
49609976 | 1619 | return (x ^ x >> (BITS_PER_EMACS_INT - FIXNUM_BITS + 1)) & INTMASK; |
eff1c190 PE |
1620 | } |
1621 | ||
7c06ac2b RS |
1622 | /* These structures are used for various misc types. */ |
1623 | ||
67ee9f6e SM |
1624 | struct Lisp_Misc_Any /* Supertype of all Misc types. */ |
1625 | { | |
49609976 | 1626 | Lisp_Object self; |
a6fc3b5c | 1627 | ENUM_BF (Lisp_Misc_Type) type : 16; /* = Lisp_Misc_??? */ |
67ee9f6e SM |
1628 | }; |
1629 | ||
3cfe6dfd | 1630 | struct Lisp_Marker |
308e97d0 | 1631 | { |
49609976 | 1632 | Lisp_Object self; |
a6fc3b5c | 1633 | ENUM_BF (Lisp_Misc_Type) type : 16; /* = Lisp_Misc_Marker */ |
9bb13d08 KH |
1634 | /* This flag is temporarily used in the functions |
1635 | decode/encode_coding_object to record that the marker position | |
1636 | must be adjusted after the conversion. */ | |
96c06863 PE |
1637 | bool_bf need_adjustment : 1; |
1638 | /* True means normal insertion at the marker's position | |
308e97d0 | 1639 | leaves the marker after the inserted text. */ |
96c06863 | 1640 | bool_bf insertion_type : 1; |
b9466edb SM |
1641 | /* This is the buffer that the marker points into, or 0 if it points nowhere. |
1642 | Note: a chain of markers can contain markers pointing into different | |
1643 | buffers (the chain is per buffer_text rather than per buffer, so it's | |
1644 | shared between indirect buffers). */ | |
1645 | /* This is used for (other than NULL-checking): | |
1646 | - Fmarker_buffer | |
1647 | - Fset_marker: check eq(oldbuf, newbuf) to avoid unchain+rechain. | |
1648 | - unchain_marker: to find the list from which to unchain. | |
ce5b453a | 1649 | - Fkill_buffer: to only unchain the markers of current indirect buffer. |
b9466edb | 1650 | */ |
308e97d0 | 1651 | struct buffer *buffer; |
4ed24bf3 RS |
1652 | |
1653 | /* The remaining fields are meaningless in a marker that | |
1654 | does not point anywhere. */ | |
1655 | ||
1656 | /* For markers that point somewhere, | |
1657 | this is used to chain of all the markers in a given buffer. */ | |
d6aa1876 SM |
1658 | /* We could remove it and use an array in buffer_text instead. |
1659 | That would also allow to preserve it ordered. */ | |
c0ac2f4a | 1660 | struct Lisp_Marker *next; |
4ed24bf3 | 1661 | /* This is the char position where the marker points. */ |
d311d28c | 1662 | ptrdiff_t charpos; |
ce5b453a SM |
1663 | /* This is the byte position. |
1664 | It's mostly used as a charpos<->bytepos cache (i.e. it's not directly | |
1665 | used to implement the functionality of markers, but rather to (ab)use | |
1666 | markers as a cache for char<->byte mappings). */ | |
d311d28c | 1667 | ptrdiff_t bytepos; |
308e97d0 | 1668 | }; |
3cfe6dfd | 1669 | |
7555c33f SM |
1670 | /* START and END are markers in the overlay's buffer, and |
1671 | PLIST is the overlay's property list. */ | |
1672 | struct Lisp_Overlay | |
fa691a83 DA |
1673 | /* An overlay's real data content is: |
1674 | - plist | |
1675 | - buffer (really there are two buffer pointers, one per marker, | |
1676 | and both points to the same buffer) | |
1677 | - insertion type of both ends (per-marker fields) | |
1678 | - start & start byte (of start marker) | |
1679 | - end & end byte (of end marker) | |
1680 | - next (singly linked list of overlays) | |
1681 | - next fields of start and end markers (singly linked list of markers). | |
1682 | I.e. 9words plus 2 bits, 3words of which are for external linked lists. | |
1683 | */ | |
7555c33f | 1684 | { |
49609976 | 1685 | Lisp_Object self; |
7555c33f | 1686 | ENUM_BF (Lisp_Misc_Type) type : 16; /* = Lisp_Misc_Overlay */ |
7555c33f | 1687 | struct Lisp_Overlay *next; |
c644523b DA |
1688 | Lisp_Object start; |
1689 | Lisp_Object end; | |
1690 | Lisp_Object plist; | |
7555c33f SM |
1691 | }; |
1692 | ||
73ebd38f DA |
1693 | /* Types of data which may be saved in a Lisp_Save_Value. */ |
1694 | ||
1695 | enum | |
1696 | { | |
1697 | SAVE_UNUSED, | |
1698 | SAVE_INTEGER, | |
52a9bcae | 1699 | SAVE_FUNCPOINTER, |
73ebd38f DA |
1700 | SAVE_POINTER, |
1701 | SAVE_OBJECT | |
1702 | }; | |
1703 | ||
7b1123d8 | 1704 | /* Number of bits needed to store one of the above values. */ |
52a9bcae | 1705 | enum { SAVE_SLOT_BITS = 3 }; |
7b1123d8 PE |
1706 | |
1707 | /* Number of slots in a save value where save_type is nonzero. */ | |
1708 | enum { SAVE_VALUE_SLOTS = 4 }; | |
1709 | ||
1710 | /* Bit-width and values for struct Lisp_Save_Value's save_type member. */ | |
1711 | ||
1712 | enum { SAVE_TYPE_BITS = SAVE_VALUE_SLOTS * SAVE_SLOT_BITS + 1 }; | |
1713 | ||
1714 | enum Lisp_Save_Type | |
1715 | { | |
1716 | SAVE_TYPE_INT_INT = SAVE_INTEGER + (SAVE_INTEGER << SAVE_SLOT_BITS), | |
1717 | SAVE_TYPE_INT_INT_INT | |
1718 | = (SAVE_INTEGER + (SAVE_TYPE_INT_INT << SAVE_SLOT_BITS)), | |
1719 | SAVE_TYPE_OBJ_OBJ = SAVE_OBJECT + (SAVE_OBJECT << SAVE_SLOT_BITS), | |
1720 | SAVE_TYPE_OBJ_OBJ_OBJ = SAVE_OBJECT + (SAVE_TYPE_OBJ_OBJ << SAVE_SLOT_BITS), | |
1721 | SAVE_TYPE_OBJ_OBJ_OBJ_OBJ | |
1722 | = SAVE_OBJECT + (SAVE_TYPE_OBJ_OBJ_OBJ << SAVE_SLOT_BITS), | |
1723 | SAVE_TYPE_PTR_INT = SAVE_POINTER + (SAVE_INTEGER << SAVE_SLOT_BITS), | |
1724 | SAVE_TYPE_PTR_OBJ = SAVE_POINTER + (SAVE_OBJECT << SAVE_SLOT_BITS), | |
1725 | SAVE_TYPE_PTR_PTR = SAVE_POINTER + (SAVE_POINTER << SAVE_SLOT_BITS), | |
52a9bcae PE |
1726 | SAVE_TYPE_FUNCPTR_PTR_OBJ |
1727 | = SAVE_FUNCPOINTER + (SAVE_TYPE_PTR_OBJ << SAVE_SLOT_BITS), | |
7b1123d8 PE |
1728 | |
1729 | /* This has an extra bit indicating it's raw memory. */ | |
1730 | SAVE_TYPE_MEMORY = SAVE_TYPE_PTR_INT + (1 << (SAVE_TYPE_BITS - 1)) | |
1731 | }; | |
1732 | ||
468afbac DA |
1733 | /* Special object used to hold a different values for later use. |
1734 | ||
1735 | This is mostly used to package C integers and pointers to call | |
27e498e6 | 1736 | record_unwind_protect when two or more values need to be saved. |
1396ac86 | 1737 | For example: |
468afbac DA |
1738 | |
1739 | ... | |
1740 | struct my_data *md = get_my_data (); | |
1396ac86 PE |
1741 | ptrdiff_t mi = get_my_integer (); |
1742 | record_unwind_protect (my_unwind, make_save_ptr_int (md, mi)); | |
468afbac DA |
1743 | ... |
1744 | ||
1745 | Lisp_Object my_unwind (Lisp_Object arg) | |
1746 | { | |
1747 | struct my_data *md = XSAVE_POINTER (arg, 0); | |
1396ac86 | 1748 | ptrdiff_t mi = XSAVE_INTEGER (arg, 1); |
468afbac DA |
1749 | ... |
1750 | } | |
1751 | ||
1752 | If ENABLE_CHECKING is in effect, XSAVE_xxx macros do type checking of the | |
1753 | saved objects and raise eassert if type of the saved object doesn't match | |
1754 | the type which is extracted. In the example above, XSAVE_INTEGER (arg, 2) | |
1396ac86 PE |
1755 | and XSAVE_OBJECT (arg, 0) are wrong because nothing was saved in slot 2 and |
1756 | slot 0 is a pointer. */ | |
73ebd38f | 1757 | |
52a9bcae PE |
1758 | typedef void (*voidfuncptr) (void); |
1759 | ||
7555c33f SM |
1760 | struct Lisp_Save_Value |
1761 | { | |
49609976 | 1762 | Lisp_Object self; |
7555c33f | 1763 | ENUM_BF (Lisp_Misc_Type) type : 16; /* = Lisp_Misc_Save_Value */ |
2bdeb39a | 1764 | unsigned spacer : 32 - (16 + SAVE_TYPE_BITS); |
7b1123d8 | 1765 | |
1396ac86 PE |
1766 | /* V->data may hold up to SAVE_VALUE_SLOTS entries. The type of |
1767 | V's data entries are determined by V->save_type. E.g., if | |
1768 | V->save_type == SAVE_TYPE_PTR_OBJ, V->data[0] is a pointer, | |
1769 | V->data[1] is an integer, and V's other data entries are unused. | |
7b1123d8 | 1770 | |
1396ac86 PE |
1771 | If V->save_type == SAVE_TYPE_MEMORY, V->data[0].pointer is the address of |
1772 | a memory area containing V->data[1].integer potential Lisp_Objects. */ | |
7b1123d8 | 1773 | ENUM_BF (Lisp_Save_Type) save_type : SAVE_TYPE_BITS; |
73ebd38f DA |
1774 | union { |
1775 | void *pointer; | |
52a9bcae | 1776 | voidfuncptr funcpointer; |
73ebd38f DA |
1777 | ptrdiff_t integer; |
1778 | Lisp_Object object; | |
7b1123d8 | 1779 | } data[SAVE_VALUE_SLOTS]; |
7555c33f SM |
1780 | }; |
1781 | ||
84575e67 | 1782 | /* Return the type of V's Nth saved value. */ |
00382e8b | 1783 | INLINE int |
84575e67 PE |
1784 | save_type (struct Lisp_Save_Value *v, int n) |
1785 | { | |
1786 | eassert (0 <= n && n < SAVE_VALUE_SLOTS); | |
1787 | return (v->save_type >> (SAVE_SLOT_BITS * n) & ((1 << SAVE_SLOT_BITS) - 1)); | |
1788 | } | |
1789 | ||
1790 | /* Get and set the Nth saved pointer. */ | |
1791 | ||
00382e8b | 1792 | INLINE void * |
84575e67 PE |
1793 | XSAVE_POINTER (Lisp_Object obj, int n) |
1794 | { | |
1795 | eassert (save_type (XSAVE_VALUE (obj), n) == SAVE_POINTER); | |
52a9bcae | 1796 | return XSAVE_VALUE (obj)->data[n].pointer; |
84575e67 | 1797 | } |
00382e8b | 1798 | INLINE void |
84575e67 PE |
1799 | set_save_pointer (Lisp_Object obj, int n, void *val) |
1800 | { | |
1801 | eassert (save_type (XSAVE_VALUE (obj), n) == SAVE_POINTER); | |
1802 | XSAVE_VALUE (obj)->data[n].pointer = val; | |
1803 | } | |
00382e8b | 1804 | INLINE voidfuncptr |
52a9bcae PE |
1805 | XSAVE_FUNCPOINTER (Lisp_Object obj, int n) |
1806 | { | |
1807 | eassert (save_type (XSAVE_VALUE (obj), n) == SAVE_FUNCPOINTER); | |
1808 | return XSAVE_VALUE (obj)->data[n].funcpointer; | |
1809 | } | |
84575e67 PE |
1810 | |
1811 | /* Likewise for the saved integer. */ | |
1812 | ||
00382e8b | 1813 | INLINE ptrdiff_t |
84575e67 PE |
1814 | XSAVE_INTEGER (Lisp_Object obj, int n) |
1815 | { | |
1816 | eassert (save_type (XSAVE_VALUE (obj), n) == SAVE_INTEGER); | |
1817 | return XSAVE_VALUE (obj)->data[n].integer; | |
1818 | } | |
00382e8b | 1819 | INLINE void |
84575e67 PE |
1820 | set_save_integer (Lisp_Object obj, int n, ptrdiff_t val) |
1821 | { | |
1822 | eassert (save_type (XSAVE_VALUE (obj), n) == SAVE_INTEGER); | |
1823 | XSAVE_VALUE (obj)->data[n].integer = val; | |
1824 | } | |
1825 | ||
1826 | /* Extract Nth saved object. */ | |
1827 | ||
00382e8b | 1828 | INLINE Lisp_Object |
84575e67 PE |
1829 | XSAVE_OBJECT (Lisp_Object obj, int n) |
1830 | { | |
1831 | eassert (save_type (XSAVE_VALUE (obj), n) == SAVE_OBJECT); | |
1832 | return XSAVE_VALUE (obj)->data[n].object; | |
1833 | } | |
1834 | ||
7555c33f SM |
1835 | /* To get the type field of a union Lisp_Misc, use XMISCTYPE. |
1836 | It uses one of these struct subtypes to get the type field. */ | |
1837 | ||
1838 | union Lisp_Misc | |
1839 | { | |
1840 | struct Lisp_Misc_Any u_any; /* Supertype of all Misc types. */ | |
7555c33f SM |
1841 | struct Lisp_Marker u_marker; |
1842 | struct Lisp_Overlay u_overlay; | |
1843 | struct Lisp_Save_Value u_save_value; | |
1844 | }; | |
1845 | ||
00382e8b | 1846 | INLINE union Lisp_Misc * |
84575e67 PE |
1847 | XMISC (Lisp_Object a) |
1848 | { | |
49609976 | 1849 | return SMOB_PTR (a); |
84575e67 PE |
1850 | } |
1851 | ||
00382e8b | 1852 | INLINE struct Lisp_Misc_Any * |
84575e67 PE |
1853 | XMISCANY (Lisp_Object a) |
1854 | { | |
1855 | eassert (MISCP (a)); | |
1856 | return & XMISC (a)->u_any; | |
1857 | } | |
1858 | ||
00382e8b | 1859 | INLINE enum Lisp_Misc_Type |
84575e67 PE |
1860 | XMISCTYPE (Lisp_Object a) |
1861 | { | |
1862 | return XMISCANY (a)->type; | |
1863 | } | |
1864 | ||
00382e8b | 1865 | INLINE struct Lisp_Marker * |
84575e67 PE |
1866 | XMARKER (Lisp_Object a) |
1867 | { | |
1868 | eassert (MARKERP (a)); | |
1869 | return & XMISC (a)->u_marker; | |
1870 | } | |
1871 | ||
00382e8b | 1872 | INLINE struct Lisp_Overlay * |
84575e67 PE |
1873 | XOVERLAY (Lisp_Object a) |
1874 | { | |
1875 | eassert (OVERLAYP (a)); | |
1876 | return & XMISC (a)->u_overlay; | |
1877 | } | |
1878 | ||
00382e8b | 1879 | INLINE struct Lisp_Save_Value * |
84575e67 PE |
1880 | XSAVE_VALUE (Lisp_Object a) |
1881 | { | |
1882 | eassert (SAVE_VALUEP (a)); | |
1883 | return & XMISC (a)->u_save_value; | |
1884 | } | |
1885 | \f | |
ee4c9ce4 KH |
1886 | /* Forwarding pointer to an int variable. |
1887 | This is allowed only in the value cell of a symbol, | |
1888 | and it means that the symbol's value really lives in the | |
1889 | specified int variable. */ | |
1890 | struct Lisp_Intfwd | |
84d1833e | 1891 | { |
ce5b453a | 1892 | enum Lisp_Fwd_Type type; /* = Lisp_Fwd_Int */ |
31ade731 | 1893 | EMACS_INT *intvar; |
ee4c9ce4 KH |
1894 | }; |
1895 | ||
1896 | /* Boolean forwarding pointer to an int variable. | |
1897 | This is like Lisp_Intfwd except that the ostensible | |
96c06863 PE |
1898 | "value" of the symbol is t if the bool variable is true, |
1899 | nil if it is false. */ | |
ee4c9ce4 KH |
1900 | struct Lisp_Boolfwd |
1901 | { | |
ce5b453a | 1902 | enum Lisp_Fwd_Type type; /* = Lisp_Fwd_Bool */ |
f5d9e83a | 1903 | bool *boolvar; |
ee4c9ce4 KH |
1904 | }; |
1905 | ||
1906 | /* Forwarding pointer to a Lisp_Object variable. | |
1907 | This is allowed only in the value cell of a symbol, | |
1908 | and it means that the symbol's value really lives in the | |
1909 | specified variable. */ | |
1910 | struct Lisp_Objfwd | |
1911 | { | |
ce5b453a | 1912 | enum Lisp_Fwd_Type type; /* = Lisp_Fwd_Obj */ |
ee4c9ce4 KH |
1913 | Lisp_Object *objvar; |
1914 | }; | |
1915 | ||
1916 | /* Like Lisp_Objfwd except that value lives in a slot in the | |
1917 | current buffer. Value is byte index of slot within buffer. */ | |
1918 | struct Lisp_Buffer_Objfwd | |
1919 | { | |
ce5b453a | 1920 | enum Lisp_Fwd_Type type; /* = Lisp_Fwd_Buffer_Obj */ |
ee4c9ce4 | 1921 | int offset; |
58cc0a01 DA |
1922 | /* One of Qnil, Qintegerp, Qsymbolp, Qstringp, Qfloatp or Qnumberp. */ |
1923 | Lisp_Object predicate; | |
84d1833e KH |
1924 | }; |
1925 | ||
65d0110b RS |
1926 | /* struct Lisp_Buffer_Local_Value is used in a symbol value cell when |
1927 | the symbol has buffer-local or frame-local bindings. (Exception: | |
1928 | some buffer-local variables are built-in, with their values stored | |
1929 | in the buffer structure itself. They are handled differently, | |
1930 | using struct Lisp_Buffer_Objfwd.) | |
1931 | ||
1932 | The `realvalue' slot holds the variable's current value, or a | |
1933 | forwarding pointer to where that value is kept. This value is the | |
1934 | one that corresponds to the loaded binding. To read or set the | |
1935 | variable, you must first make sure the right binding is loaded; | |
1936 | then you can access the value in (or through) `realvalue'. | |
e2c0561e | 1937 | |
65d0110b RS |
1938 | `buffer' and `frame' are the buffer and frame for which the loaded |
1939 | binding was found. If those have changed, to make sure the right | |
1940 | binding is loaded it is necessary to find which binding goes with | |
1941 | the current buffer and selected frame, then load it. To load it, | |
1942 | first unload the previous binding, then copy the value of the new | |
1943 | binding into `realvalue' (or through it). Also update | |
1944 | LOADED-BINDING to point to the newly loaded binding. | |
7d65f1c2 | 1945 | |
78edd3b7 JB |
1946 | `local_if_set' indicates that merely setting the variable creates a |
1947 | local binding for the current buffer. Otherwise the latter, setting | |
1948 | the variable does not do that; only make-local-variable does that. */ | |
65d0110b | 1949 | |
7d65f1c2 KH |
1950 | struct Lisp_Buffer_Local_Value |
1951 | { | |
96c06863 | 1952 | /* True means that merely setting the variable creates a local |
7555c33f | 1953 | binding for the current buffer. */ |
96c06863 PE |
1954 | bool_bf local_if_set : 1; |
1955 | /* True means this variable can have frame-local bindings, otherwise, it is | |
ce5b453a | 1956 | can have buffer-local bindings. The two cannot be combined. */ |
96c06863 PE |
1957 | bool_bf frame_local : 1; |
1958 | /* True means that the binding now loaded was found. | |
7555c33f | 1959 | Presumably equivalent to (defcell!=valcell). */ |
96c06863 | 1960 | bool_bf found : 1; |
ce5b453a SM |
1961 | /* If non-NULL, a forwarding to the C var where it should also be set. */ |
1962 | union Lisp_Fwd *fwd; /* Should never be (Buffer|Kboard)_Objfwd. */ | |
1963 | /* The buffer or frame for which the loaded binding was found. */ | |
1964 | Lisp_Object where; | |
1965 | /* A cons cell that holds the default value. It has the form | |
1966 | (SYMBOL . DEFAULT-VALUE). */ | |
1967 | Lisp_Object defcell; | |
1968 | /* The cons cell from `where's parameter alist. | |
1969 | It always has the form (SYMBOL . VALUE) | |
1970 | Note that if `forward' is non-nil, VALUE may be out of date. | |
1971 | Also if the currently loaded binding is the default binding, then | |
1972 | this is `eq'ual to defcell. */ | |
1973 | Lisp_Object valcell; | |
7d65f1c2 KH |
1974 | }; |
1975 | ||
f334de0e | 1976 | /* Like Lisp_Objfwd except that value lives in a slot in the |
32462604 KH |
1977 | current kboard. */ |
1978 | struct Lisp_Kboard_Objfwd | |
f334de0e | 1979 | { |
ce5b453a | 1980 | enum Lisp_Fwd_Type type; /* = Lisp_Fwd_Kboard_Obj */ |
f334de0e KH |
1981 | int offset; |
1982 | }; | |
1983 | ||
ce5b453a SM |
1984 | union Lisp_Fwd |
1985 | { | |
d55c12ed AS |
1986 | struct Lisp_Intfwd u_intfwd; |
1987 | struct Lisp_Boolfwd u_boolfwd; | |
1988 | struct Lisp_Objfwd u_objfwd; | |
1989 | struct Lisp_Buffer_Objfwd u_buffer_objfwd; | |
1990 | struct Lisp_Kboard_Objfwd u_kboard_objfwd; | |
84d1833e | 1991 | }; |
84575e67 | 1992 | |
00382e8b | 1993 | INLINE enum Lisp_Fwd_Type |
84575e67 PE |
1994 | XFWDTYPE (union Lisp_Fwd *a) |
1995 | { | |
1996 | return a->u_intfwd.type; | |
1997 | } | |
1998 | ||
00382e8b | 1999 | INLINE struct Lisp_Buffer_Objfwd * |
84575e67 PE |
2000 | XBUFFER_OBJFWD (union Lisp_Fwd *a) |
2001 | { | |
2002 | eassert (BUFFER_OBJFWDP (a)); | |
2003 | return &a->u_buffer_objfwd; | |
2004 | } | |
7c06ac2b | 2005 | \f |
ed446f1e | 2006 | #define XFLOAT_DATA(f) (scm_to_double (f)) |
3cfe6dfd | 2007 | |
4d7e6e51 PE |
2008 | /* Most hosts nowadays use IEEE floating point, so they use IEC 60559 |
2009 | representations, have infinities and NaNs, and do not trap on | |
2010 | exceptions. Define IEEE_FLOATING_POINT if this host is one of the | |
2011 | typical ones. The C11 macro __STDC_IEC_559__ is close to what is | |
2012 | wanted here, but is not quite right because Emacs does not require | |
2013 | all the features of C11 Annex F (and does not require C11 at all, | |
2014 | for that matter). */ | |
84575e67 PE |
2015 | enum |
2016 | { | |
2017 | IEEE_FLOATING_POINT | |
2018 | = (FLT_RADIX == 2 && FLT_MANT_DIG == 24 | |
2019 | && FLT_MIN_EXP == -125 && FLT_MAX_EXP == 128) | |
2020 | }; | |
4d7e6e51 | 2021 | |
3cfe6dfd | 2022 | /* A character, declared with the following typedef, is a member |
99a3d506 | 2023 | of some character set associated with the current buffer. */ |
b2ba7b00 RS |
2024 | #ifndef _UCHAR_T /* Protect against something in ctab.h on AIX. */ |
2025 | #define _UCHAR_T | |
3cfe6dfd | 2026 | typedef unsigned char UCHAR; |
b2ba7b00 | 2027 | #endif |
3cfe6dfd JB |
2028 | |
2029 | /* Meanings of slots in a Lisp_Compiled: */ | |
2030 | ||
03a660a6 PE |
2031 | enum Lisp_Compiled |
2032 | { | |
2033 | COMPILED_ARGLIST = 0, | |
2034 | COMPILED_BYTECODE = 1, | |
2035 | COMPILED_CONSTANTS = 2, | |
2036 | COMPILED_STACK_DEPTH = 3, | |
2037 | COMPILED_DOC_STRING = 4, | |
2038 | COMPILED_INTERACTIVE = 5 | |
2039 | }; | |
88dbfee5 | 2040 | |
d03f79ef JB |
2041 | /* Flag bits in a character. These also get used in termhooks.h. |
2042 | Richard Stallman <rms@gnu.ai.mit.edu> thinks that MULE | |
7c06ac2b RS |
2043 | (MUlti-Lingual Emacs) might need 22 bits for the character value |
2044 | itself, so we probably shouldn't use any bits lower than 0x0400000. */ | |
03a660a6 PE |
2045 | enum char_bits |
2046 | { | |
2047 | CHAR_ALT = 0x0400000, | |
2048 | CHAR_SUPER = 0x0800000, | |
2049 | CHAR_HYPER = 0x1000000, | |
2050 | CHAR_SHIFT = 0x2000000, | |
2051 | CHAR_CTL = 0x4000000, | |
2052 | CHAR_META = 0x8000000, | |
2053 | ||
2054 | CHAR_MODIFIER_MASK = | |
88fb40b4 | 2055 | CHAR_ALT | CHAR_SUPER | CHAR_HYPER | CHAR_SHIFT | CHAR_CTL | CHAR_META, |
03a660a6 PE |
2056 | |
2057 | /* Actually, the current Emacs uses 22 bits for the character value | |
2058 | itself. */ | |
2059 | CHARACTERBITS = 22 | |
2060 | }; | |
3cfe6dfd | 2061 | \f |
e7032e7c | 2062 | /* Data type checking. */ |
3cfe6dfd | 2063 | |
84575e67 | 2064 | LISP_MACRO_DEFUN (NILP, bool, (Lisp_Object x), (x)) |
3cfe6dfd | 2065 | |
00382e8b | 2066 | INLINE bool |
84575e67 PE |
2067 | NUMBERP (Lisp_Object x) |
2068 | { | |
2069 | return INTEGERP (x) || FLOATP (x); | |
2070 | } | |
00382e8b | 2071 | INLINE bool |
84575e67 PE |
2072 | NATNUMP (Lisp_Object x) |
2073 | { | |
2074 | return INTEGERP (x) && 0 <= XINT (x); | |
2075 | } | |
2076 | ||
00382e8b | 2077 | INLINE bool |
84575e67 PE |
2078 | RANGED_INTEGERP (intmax_t lo, Lisp_Object x, intmax_t hi) |
2079 | { | |
2080 | return INTEGERP (x) && lo <= XINT (x) && XINT (x) <= hi; | |
2081 | } | |
4746118a | 2082 | |
ca9ce8f2 | 2083 | #define TYPE_RANGED_INTEGERP(type, x) \ |
84575e67 PE |
2084 | (INTEGERP (x) \ |
2085 | && (TYPE_SIGNED (type) ? TYPE_MINIMUM (type) <= XINT (x) : 0 <= XINT (x)) \ | |
2086 | && XINT (x) <= TYPE_MAXIMUM (type)) | |
2087 | ||
2088 | LISP_MACRO_DEFUN (CONSP, bool, (Lisp_Object x), (x)) | |
2089 | LISP_MACRO_DEFUN (FLOATP, bool, (Lisp_Object x), (x)) | |
2090 | LISP_MACRO_DEFUN (MISCP, bool, (Lisp_Object x), (x)) | |
2091 | LISP_MACRO_DEFUN (SYMBOLP, bool, (Lisp_Object x), (x)) | |
2092 | LISP_MACRO_DEFUN (INTEGERP, bool, (Lisp_Object x), (x)) | |
2093 | LISP_MACRO_DEFUN (VECTORLIKEP, bool, (Lisp_Object x), (x)) | |
2094 | LISP_MACRO_DEFUN (MARKERP, bool, (Lisp_Object x), (x)) | |
2095 | ||
00382e8b | 2096 | INLINE bool |
84575e67 PE |
2097 | STRINGP (Lisp_Object x) |
2098 | { | |
49609976 | 2099 | return SMOB_TYPEP (x, lisp_string_tag); |
84575e67 | 2100 | } |
00382e8b | 2101 | INLINE bool |
84575e67 PE |
2102 | VECTORP (Lisp_Object x) |
2103 | { | |
2104 | return VECTORLIKEP (x) && ! (ASIZE (x) & PSEUDOVECTOR_FLAG); | |
2105 | } | |
00382e8b | 2106 | INLINE bool |
84575e67 PE |
2107 | OVERLAYP (Lisp_Object x) |
2108 | { | |
2109 | return MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Overlay; | |
2110 | } | |
00382e8b | 2111 | INLINE bool |
84575e67 PE |
2112 | SAVE_VALUEP (Lisp_Object x) |
2113 | { | |
2114 | return MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Save_Value; | |
2115 | } | |
2116 | ||
00382e8b | 2117 | INLINE bool |
84575e67 PE |
2118 | AUTOLOADP (Lisp_Object x) |
2119 | { | |
2120 | return CONSP (x) && EQ (Qautoload, XCAR (x)); | |
2121 | } | |
7b1123d8 | 2122 | |
00382e8b | 2123 | INLINE bool |
84575e67 | 2124 | BUFFER_OBJFWDP (union Lisp_Fwd *a) |
7b1123d8 | 2125 | { |
84575e67 | 2126 | return XFWDTYPE (a) == Lisp_Fwd_Buffer_Obj; |
7b1123d8 | 2127 | } |
edfa9106 | 2128 | |
00382e8b | 2129 | INLINE bool |
84575e67 | 2130 | PSEUDOVECTOR_TYPEP (struct vectorlike_header *a, int code) |
717b8bcd | 2131 | { |
84575e67 PE |
2132 | return ((a->size & (PSEUDOVECTOR_FLAG | PVEC_TYPE_MASK)) |
2133 | == (PSEUDOVECTOR_FLAG | (code << PSEUDOVECTOR_AREA_BITS))); | |
717b8bcd SM |
2134 | } |
2135 | ||
84575e67 | 2136 | /* True if A is a pseudovector whose code is CODE. */ |
00382e8b | 2137 | INLINE bool |
84575e67 | 2138 | PSEUDOVECTORP (Lisp_Object a, int code) |
717b8bcd | 2139 | { |
84575e67 | 2140 | if (! VECTORLIKEP (a)) |
96c06863 | 2141 | return false; |
84575e67 PE |
2142 | else |
2143 | { | |
2144 | /* Converting to struct vectorlike_header * avoids aliasing issues. */ | |
49609976 | 2145 | struct vectorlike_header *h = SMOB_PTR (a); |
84575e67 PE |
2146 | return PSEUDOVECTOR_TYPEP (h, code); |
2147 | } | |
717b8bcd SM |
2148 | } |
2149 | ||
84575e67 PE |
2150 | /* Test for specific pseudovector types. */ |
2151 | ||
00382e8b | 2152 | INLINE bool |
84575e67 | 2153 | WINDOW_CONFIGURATIONP (Lisp_Object a) |
717b8bcd | 2154 | { |
84575e67 | 2155 | return PSEUDOVECTORP (a, PVEC_WINDOW_CONFIGURATION); |
717b8bcd | 2156 | } |
84575e67 | 2157 | |
00382e8b | 2158 | INLINE bool |
84575e67 | 2159 | PROCESSP (Lisp_Object a) |
717b8bcd | 2160 | { |
84575e67 | 2161 | return PSEUDOVECTORP (a, PVEC_PROCESS); |
717b8bcd SM |
2162 | } |
2163 | ||
00382e8b | 2164 | INLINE bool |
84575e67 | 2165 | WINDOWP (Lisp_Object a) |
717b8bcd | 2166 | { |
84575e67 | 2167 | return PSEUDOVECTORP (a, PVEC_WINDOW); |
717b8bcd | 2168 | } |
84575e67 | 2169 | |
00382e8b | 2170 | INLINE bool |
84575e67 | 2171 | TERMINALP (Lisp_Object a) |
717b8bcd | 2172 | { |
84575e67 | 2173 | return PSEUDOVECTORP (a, PVEC_TERMINAL); |
717b8bcd SM |
2174 | } |
2175 | ||
00382e8b | 2176 | INLINE bool |
84575e67 | 2177 | SUBRP (Lisp_Object a) |
717b8bcd | 2178 | { |
84575e67 | 2179 | return PSEUDOVECTORP (a, PVEC_SUBR); |
717b8bcd SM |
2180 | } |
2181 | ||
00382e8b | 2182 | INLINE bool |
84575e67 PE |
2183 | COMPILEDP (Lisp_Object a) |
2184 | { | |
2185 | return PSEUDOVECTORP (a, PVEC_COMPILED); | |
2186 | } | |
32e5c58c | 2187 | |
00382e8b | 2188 | INLINE bool |
84575e67 PE |
2189 | BUFFERP (Lisp_Object a) |
2190 | { | |
2191 | return PSEUDOVECTORP (a, PVEC_BUFFER); | |
2192 | } | |
7c06ac2b | 2193 | |
00382e8b | 2194 | INLINE bool |
84575e67 PE |
2195 | CHAR_TABLE_P (Lisp_Object a) |
2196 | { | |
2197 | return PSEUDOVECTORP (a, PVEC_CHAR_TABLE); | |
2198 | } | |
ee28be33 | 2199 | |
00382e8b | 2200 | INLINE bool |
84575e67 PE |
2201 | SUB_CHAR_TABLE_P (Lisp_Object a) |
2202 | { | |
2203 | return PSEUDOVECTORP (a, PVEC_SUB_CHAR_TABLE); | |
2204 | } | |
eab3844f | 2205 | |
00382e8b | 2206 | INLINE bool |
84575e67 PE |
2207 | BOOL_VECTOR_P (Lisp_Object a) |
2208 | { | |
2209 | return PSEUDOVECTORP (a, PVEC_BOOL_VECTOR); | |
2210 | } | |
7c06ac2b | 2211 | |
00382e8b | 2212 | INLINE bool |
84575e67 PE |
2213 | FRAMEP (Lisp_Object a) |
2214 | { | |
2215 | return PSEUDOVECTORP (a, PVEC_FRAME); | |
2216 | } | |
ea724a01 | 2217 | |
6b61353c | 2218 | /* Test for image (image . spec) */ |
00382e8b | 2219 | INLINE bool |
84575e67 PE |
2220 | IMAGEP (Lisp_Object x) |
2221 | { | |
2222 | return CONSP (x) && EQ (XCAR (x), Qimage); | |
2223 | } | |
6b61353c | 2224 | |
c8a39089 | 2225 | /* Array types. */ |
00382e8b | 2226 | INLINE bool |
84575e67 PE |
2227 | ARRAYP (Lisp_Object x) |
2228 | { | |
2229 | return VECTORP (x) || STRINGP (x) || CHAR_TABLE_P (x) || BOOL_VECTOR_P (x); | |
2230 | } | |
7c06ac2b | 2231 | \f |
00382e8b | 2232 | INLINE void |
84575e67 PE |
2233 | CHECK_LIST (Lisp_Object x) |
2234 | { | |
2235 | CHECK_TYPE (CONSP (x) || NILP (x), Qlistp, x); | |
2236 | } | |
3cfe6dfd | 2237 | |
84575e67 PE |
2238 | LISP_MACRO_DEFUN_VOID (CHECK_LIST_CONS, (Lisp_Object x, Lisp_Object y), (x, y)) |
2239 | LISP_MACRO_DEFUN_VOID (CHECK_SYMBOL, (Lisp_Object x), (x)) | |
2240 | LISP_MACRO_DEFUN_VOID (CHECK_NUMBER, (Lisp_Object x), (x)) | |
3cfe6dfd | 2241 | |
00382e8b | 2242 | INLINE void |
84575e67 PE |
2243 | CHECK_STRING (Lisp_Object x) |
2244 | { | |
2245 | CHECK_TYPE (STRINGP (x), Qstringp, x); | |
2246 | } | |
00382e8b | 2247 | INLINE void |
84575e67 PE |
2248 | CHECK_STRING_CAR (Lisp_Object x) |
2249 | { | |
2250 | CHECK_TYPE (STRINGP (XCAR (x)), Qstringp, XCAR (x)); | |
2251 | } | |
00382e8b | 2252 | INLINE void |
84575e67 PE |
2253 | CHECK_CONS (Lisp_Object x) |
2254 | { | |
2255 | CHECK_TYPE (CONSP (x), Qconsp, x); | |
2256 | } | |
00382e8b | 2257 | INLINE void |
84575e67 PE |
2258 | CHECK_VECTOR (Lisp_Object x) |
2259 | { | |
2260 | CHECK_TYPE (VECTORP (x), Qvectorp, x); | |
2261 | } | |
00382e8b | 2262 | INLINE void |
3e0b94e7 DC |
2263 | CHECK_BOOL_VECTOR (Lisp_Object x) |
2264 | { | |
2265 | CHECK_TYPE (BOOL_VECTOR_P (x), Qbool_vector_p, x); | |
2266 | } | |
2267 | INLINE void | |
84575e67 PE |
2268 | CHECK_VECTOR_OR_STRING (Lisp_Object x) |
2269 | { | |
2270 | CHECK_TYPE (VECTORP (x) || STRINGP (x), Qarrayp, x); | |
2271 | } | |
00382e8b | 2272 | INLINE void |
40f5d4b7 | 2273 | CHECK_ARRAY (Lisp_Object x, Lisp_Object predicate) |
84575e67 | 2274 | { |
40f5d4b7 | 2275 | CHECK_TYPE (ARRAYP (x), predicate, x); |
84575e67 | 2276 | } |
00382e8b | 2277 | INLINE void |
84575e67 PE |
2278 | CHECK_BUFFER (Lisp_Object x) |
2279 | { | |
2280 | CHECK_TYPE (BUFFERP (x), Qbufferp, x); | |
2281 | } | |
00382e8b | 2282 | INLINE void |
84575e67 PE |
2283 | CHECK_WINDOW (Lisp_Object x) |
2284 | { | |
2285 | CHECK_TYPE (WINDOWP (x), Qwindowp, x); | |
2286 | } | |
bf6b4923 | 2287 | #ifdef subprocesses |
00382e8b | 2288 | INLINE void |
84575e67 PE |
2289 | CHECK_PROCESS (Lisp_Object x) |
2290 | { | |
2291 | CHECK_TYPE (PROCESSP (x), Qprocessp, x); | |
2292 | } | |
bf6b4923 | 2293 | #endif |
00382e8b | 2294 | INLINE void |
84575e67 PE |
2295 | CHECK_NATNUM (Lisp_Object x) |
2296 | { | |
2297 | CHECK_TYPE (NATNUMP (x), Qwholenump, x); | |
2298 | } | |
3cfe6dfd | 2299 | |
af5a5a98 | 2300 | #define CHECK_RANGED_INTEGER(x, lo, hi) \ |
d311d28c PE |
2301 | do { \ |
2302 | CHECK_NUMBER (x); \ | |
2303 | if (! ((lo) <= XINT (x) && XINT (x) <= (hi))) \ | |
2304 | args_out_of_range_3 \ | |
2305 | (x, \ | |
2306 | make_number ((lo) < 0 && (lo) < MOST_NEGATIVE_FIXNUM \ | |
2307 | ? MOST_NEGATIVE_FIXNUM \ | |
2308 | : (lo)), \ | |
2309 | make_number (min (hi, MOST_POSITIVE_FIXNUM))); \ | |
96c06863 | 2310 | } while (false) |
d311d28c PE |
2311 | #define CHECK_TYPE_RANGED_INTEGER(type, x) \ |
2312 | do { \ | |
2313 | if (TYPE_SIGNED (type)) \ | |
af5a5a98 | 2314 | CHECK_RANGED_INTEGER (x, TYPE_MINIMUM (type), TYPE_MAXIMUM (type)); \ |
d311d28c | 2315 | else \ |
af5a5a98 | 2316 | CHECK_RANGED_INTEGER (x, 0, TYPE_MAXIMUM (type)); \ |
96c06863 | 2317 | } while (false) |
d311d28c | 2318 | |
96c06863 PE |
2319 | #define CHECK_NUMBER_COERCE_MARKER(x) \ |
2320 | do { \ | |
2321 | if (MARKERP ((x))) \ | |
2322 | XSETFASTINT (x, marker_position (x)); \ | |
2323 | else \ | |
2324 | CHECK_TYPE (INTEGERP (x), Qinteger_or_marker_p, x); \ | |
2325 | } while (false) | |
3cfe6dfd | 2326 | |
00382e8b | 2327 | INLINE double |
84575e67 PE |
2328 | XFLOATINT (Lisp_Object n) |
2329 | { | |
2330 | return extract_float (n); | |
2331 | } | |
3cfe6dfd | 2332 | |
00382e8b | 2333 | INLINE void |
84575e67 PE |
2334 | CHECK_NUMBER_OR_FLOAT (Lisp_Object x) |
2335 | { | |
2336 | CHECK_TYPE (FLOATP (x) || INTEGERP (x), Qnumberp, x); | |
2337 | } | |
3cfe6dfd | 2338 | |
96c06863 PE |
2339 | #define CHECK_NUMBER_OR_FLOAT_COERCE_MARKER(x) \ |
2340 | do { \ | |
2341 | if (MARKERP (x)) \ | |
2342 | XSETFASTINT (x, marker_position (x)); \ | |
2343 | else \ | |
2344 | CHECK_TYPE (INTEGERP (x) || FLOATP (x), Qnumber_or_marker_p, x); \ | |
2345 | } while (false) | |
3cfe6dfd | 2346 | |
f3fbd155 KR |
2347 | /* Since we can't assign directly to the CAR or CDR fields of a cons |
2348 | cell, use these when checking that those fields contain numbers. */ | |
00382e8b | 2349 | INLINE void |
84575e67 PE |
2350 | CHECK_NUMBER_CAR (Lisp_Object x) |
2351 | { | |
2352 | Lisp_Object tmp = XCAR (x); | |
2353 | CHECK_NUMBER (tmp); | |
2354 | XSETCAR (x, tmp); | |
2355 | } | |
8f924df7 | 2356 | |
00382e8b | 2357 | INLINE void |
84575e67 PE |
2358 | CHECK_NUMBER_CDR (Lisp_Object x) |
2359 | { | |
2360 | Lisp_Object tmp = XCDR (x); | |
2361 | CHECK_NUMBER (tmp); | |
2362 | XSETCDR (x, tmp); | |
2363 | } | |
3cfe6dfd JB |
2364 | \f |
2365 | /* Define a built-in function for calling from Lisp. | |
2366 | `lname' should be the name to give the function in Lisp, | |
2367 | as a null-terminated C string. | |
2368 | `fnname' should be the name of the function in C. | |
2369 | By convention, it starts with F. | |
2370 | `sname' should be the name for the C constant structure | |
2371 | that records information on this function for internal use. | |
2372 | By convention, it should be the same as `fnname' but with S instead of F. | |
2373 | It's too bad that C macros can't compute this from `fnname'. | |
2374 | `minargs' should be a number, the minimum number of arguments allowed. | |
2375 | `maxargs' should be a number, the maximum number of arguments allowed, | |
2376 | or else MANY or UNEVALLED. | |
2377 | MANY means pass a vector of evaluated arguments, | |
2378 | in the form of an integer number-of-arguments | |
2379 | followed by the address of a vector of Lisp_Objects | |
2380 | which contains the argument values. | |
2381 | UNEVALLED means pass the list of unevaluated arguments | |
4bca9161 MC |
2382 | `intspec' says how interactive arguments are to be fetched. |
2383 | If the string starts with a `(', `intspec' is evaluated and the resulting | |
2384 | list is the list of arguments. | |
2385 | If it's a string that doesn't start with `(', the value should follow | |
2386 | the one of the doc string for `interactive'. | |
3cfe6dfd | 2387 | A null string means call interactively with no arguments. |
eab9d423 | 2388 | `doc' is documentation for the user. */ |
3cfe6dfd | 2389 | |
c451d7b1 | 2390 | /* This version of DEFUN declares a function prototype with the right |
99a3d506 | 2391 | arguments, so we can catch errors with maxargs at compile-time. */ |
a6fc3b5c EZ |
2392 | #ifdef _MSC_VER |
2393 | #define DEFUN(lname, fnname, sname, minargs, maxargs, intspec, doc) \ | |
e642c718 | 2394 | SCM_SNARF_INIT (defsubr (&sname);) \ |
a6fc3b5c | 2395 | Lisp_Object fnname DEFUN_ARGS_ ## maxargs ; \ |
e32a5799 | 2396 | static struct Lisp_Subr alignas (GCALIGNMENT) sname = \ |
49609976 BT |
2397 | { { NULL, \ |
2398 | (PVEC_SUBR << PSEUDOVECTOR_AREA_BITS) \ | |
914adc42 | 2399 | | (sizeof (struct Lisp_Subr) / sizeof (EMACS_INT)) }, \ |
49609976 BT |
2400 | { (Lisp_Object (__cdecl *)(void))fnname }, \ |
2401 | minargs, maxargs, lname, intspec, 0}; \ | |
a6fc3b5c EZ |
2402 | Lisp_Object fnname |
2403 | #else /* not _MSC_VER */ | |
2404 | #define DEFUN(lname, fnname, sname, minargs, maxargs, intspec, doc) \ | |
e642c718 | 2405 | SCM_SNARF_INIT (defsubr (&sname);) \ |
72aa8b2e | 2406 | Lisp_Object fnname DEFUN_ARGS_ ## maxargs ; \ |
e32a5799 | 2407 | static struct Lisp_Subr alignas (GCALIGNMENT) sname = \ |
49609976 BT |
2408 | { { .self = NULL, \ |
2409 | .size = PVEC_SUBR << PSEUDOVECTOR_AREA_BITS }, \ | |
2410 | { .a ## maxargs = fnname }, \ | |
2411 | minargs, maxargs, lname, intspec, 0}; \ | |
a6fc3b5c EZ |
2412 | Lisp_Object fnname |
2413 | #endif | |
c451d7b1 RS |
2414 | |
2415 | /* Note that the weird token-substitution semantics of ANSI C makes | |
99a3d506 | 2416 | this work for MANY and UNEVALLED. */ |
f66c7cf8 | 2417 | #define DEFUN_ARGS_MANY (ptrdiff_t, Lisp_Object *) |
c451d7b1 RS |
2418 | #define DEFUN_ARGS_UNEVALLED (Lisp_Object) |
2419 | #define DEFUN_ARGS_0 (void) | |
2420 | #define DEFUN_ARGS_1 (Lisp_Object) | |
2421 | #define DEFUN_ARGS_2 (Lisp_Object, Lisp_Object) | |
2422 | #define DEFUN_ARGS_3 (Lisp_Object, Lisp_Object, Lisp_Object) | |
2423 | #define DEFUN_ARGS_4 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object) | |
2424 | #define DEFUN_ARGS_5 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \ | |
2425 | Lisp_Object) | |
2426 | #define DEFUN_ARGS_6 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \ | |
2427 | Lisp_Object, Lisp_Object) | |
2428 | #define DEFUN_ARGS_7 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \ | |
2429 | Lisp_Object, Lisp_Object, Lisp_Object) | |
5593f7e3 KH |
2430 | #define DEFUN_ARGS_8 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \ |
2431 | Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object) | |
276680c4 | 2432 | |
84575e67 | 2433 | /* True if OBJ is a Lisp function. */ |
00382e8b | 2434 | INLINE bool |
84575e67 PE |
2435 | FUNCTIONP (Lisp_Object obj) |
2436 | { | |
2437 | return functionp (obj); | |
2438 | } | |
e2c0561e | 2439 | |
3cfe6dfd | 2440 | /* defsubr (Sname); |
d19b9aa8 | 2441 | is how we define the symbol for function `name' at start-up time. */ |
383e0970 | 2442 | extern void defsubr (struct Lisp_Subr *); |
3cfe6dfd | 2443 | |
03a660a6 PE |
2444 | enum maxargs |
2445 | { | |
2446 | MANY = -2, | |
2447 | UNEVALLED = -1 | |
2448 | }; | |
3cfe6dfd | 2449 | |
ce5b453a SM |
2450 | extern void defvar_lisp (struct Lisp_Objfwd *, const char *, Lisp_Object *); |
2451 | extern void defvar_lisp_nopro (struct Lisp_Objfwd *, const char *, Lisp_Object *); | |
f5d9e83a | 2452 | extern void defvar_bool (struct Lisp_Boolfwd *, const char *, bool *); |
ce5b453a SM |
2453 | extern void defvar_int (struct Lisp_Intfwd *, const char *, EMACS_INT *); |
2454 | extern void defvar_kboard (struct Lisp_Kboard_Objfwd *, const char *, int); | |
3cfe6dfd JB |
2455 | |
2456 | /* Macros we use to define forwarded Lisp variables. | |
29208e82 | 2457 | These are used in the syms_of_FILENAME functions. |
51b59d79 | 2458 | |
29208e82 TT |
2459 | An ordinary (not in buffer_defaults, per-buffer, or per-keyboard) |
2460 | lisp variable is actually a field in `struct emacs_globals'. The | |
2461 | field's name begins with "f_", which is a convention enforced by | |
2462 | these macros. Each such global has a corresponding #define in | |
2463 | globals.h; the plain name should be used in the code. | |
2464 | ||
2465 | E.g., the global "cons_cells_consed" is declared as "int | |
2466 | f_cons_cells_consed" in globals.h, but there is a define: | |
2467 | ||
2468 | #define cons_cells_consed globals.f_cons_cells_consed | |
2469 | ||
2470 | All C code uses the `cons_cells_consed' name. This is all done | |
2471 | this way to support indirection for multi-threaded Emacs. */ | |
3cfe6dfd | 2472 | |
ce5b453a SM |
2473 | #define DEFVAR_LISP(lname, vname, doc) \ |
2474 | do { \ | |
2475 | static struct Lisp_Objfwd o_fwd; \ | |
29208e82 | 2476 | defvar_lisp (&o_fwd, lname, &globals.f_ ## vname); \ |
96c06863 | 2477 | } while (false) |
ce5b453a SM |
2478 | #define DEFVAR_LISP_NOPRO(lname, vname, doc) \ |
2479 | do { \ | |
2480 | static struct Lisp_Objfwd o_fwd; \ | |
29208e82 | 2481 | defvar_lisp_nopro (&o_fwd, lname, &globals.f_ ## vname); \ |
96c06863 | 2482 | } while (false) |
ce5b453a SM |
2483 | #define DEFVAR_BOOL(lname, vname, doc) \ |
2484 | do { \ | |
2485 | static struct Lisp_Boolfwd b_fwd; \ | |
29208e82 | 2486 | defvar_bool (&b_fwd, lname, &globals.f_ ## vname); \ |
96c06863 | 2487 | } while (false) |
ce5b453a SM |
2488 | #define DEFVAR_INT(lname, vname, doc) \ |
2489 | do { \ | |
2490 | static struct Lisp_Intfwd i_fwd; \ | |
29208e82 | 2491 | defvar_int (&i_fwd, lname, &globals.f_ ## vname); \ |
96c06863 | 2492 | } while (false) |
92d2947b | 2493 | |
422745d0 TT |
2494 | #define DEFVAR_BUFFER_DEFAULTS(lname, vname, doc) \ |
2495 | do { \ | |
2496 | static struct Lisp_Objfwd o_fwd; \ | |
eb4916d7 | 2497 | defvar_lisp_nopro (&o_fwd, lname, &BVAR (&buffer_defaults, vname)); \ |
96c06863 | 2498 | } while (false) |
422745d0 | 2499 | |
ce5b453a SM |
2500 | #define DEFVAR_KBOARD(lname, vname, doc) \ |
2501 | do { \ | |
2502 | static struct Lisp_Kboard_Objfwd ko_fwd; \ | |
437b2cb4 | 2503 | defvar_kboard (&ko_fwd, lname, offsetof (KBOARD, vname ## _)); \ |
96c06863 | 2504 | } while (false) |
0328b6de PE |
2505 | \f |
2506 | /* Save and restore the instruction and environment pointers, | |
2507 | without affecting the signal mask. */ | |
2508 | ||
2509 | #ifdef HAVE__SETJMP | |
2510 | typedef jmp_buf sys_jmp_buf; | |
2511 | # define sys_setjmp(j) _setjmp (j) | |
2512 | # define sys_longjmp(j, v) _longjmp (j, v) | |
2513 | #elif defined HAVE_SIGSETJMP | |
2514 | typedef sigjmp_buf sys_jmp_buf; | |
2515 | # define sys_setjmp(j) sigsetjmp (j, 0) | |
2516 | # define sys_longjmp(j, v) siglongjmp (j, v) | |
2517 | #else | |
7105c8cb EZ |
2518 | /* A platform that uses neither _longjmp nor siglongjmp; assume |
2519 | longjmp does not affect the sigmask. */ | |
0328b6de PE |
2520 | typedef jmp_buf sys_jmp_buf; |
2521 | # define sys_setjmp(j) setjmp (j) | |
2522 | # define sys_longjmp(j, v) longjmp (j, v) | |
2523 | #endif | |
df7cd53b | 2524 | |
3cfe6dfd | 2525 | \f |
2f592f95 SM |
2526 | /* Elisp uses several stacks: |
2527 | - the C stack. | |
2528 | - the bytecode stack: used internally by the bytecode interpreter. | |
2529 | Allocated from the C stack. | |
2530 | - The specpdl stack: keeps track of active unwind-protect and | |
2531 | dynamic-let-bindings. Allocated from the `specpdl' array, a manually | |
2532 | managed stack. | |
adf2aa61 SM |
2533 | - The handler stack: keeps track of active catch tags and condition-case |
2534 | handlers. Allocated in a manually managed stack implemented by a | |
2535 | doubly-linked list allocated via xmalloc and never freed. */ | |
2f592f95 | 2536 | |
78ca380c JB |
2537 | /* Structure for recording Lisp call stack for backtrace purposes. */ |
2538 | ||
2539 | /* The special binding stack holds the outer values of variables while | |
2540 | they are bound by a function application or a let form, stores the | |
2f592f95 | 2541 | code to be executed for unwind-protect forms. |
78ca380c | 2542 | |
9349e5f7 | 2543 | NOTE: The specbinding union is defined here, because SPECPDL_INDEX is |
2f592f95 | 2544 | used all over the place, needs to be fast, and needs to know the size of |
9349e5f7 | 2545 | union specbinding. But only eval.c should access it. */ |
5fd6e274 | 2546 | |
2f592f95 | 2547 | enum specbind_tag { |
2f592f95 SM |
2548 | SPECPDL_BACKTRACE, /* An element of the backtrace. */ |
2549 | SPECPDL_LET, /* A plain and simple dynamic let-binding. */ | |
2550 | /* Tags greater than SPECPDL_LET must be "subkinds" of LET. */ | |
2551 | SPECPDL_LET_LOCAL, /* A buffer-local let-binding. */ | |
2552 | SPECPDL_LET_DEFAULT /* A global binding for a localized var. */ | |
2553 | }; | |
2554 | ||
9349e5f7 | 2555 | union specbinding |
3cfe6dfd | 2556 | { |
9349e5f7 | 2557 | ENUM_BF (specbind_tag) kind : CHAR_BIT; |
a26b12fa BT |
2558 | struct { |
2559 | ENUM_BF (specbind_tag) kind : CHAR_BIT; | |
2560 | } frame; | |
9349e5f7 PE |
2561 | struct { |
2562 | ENUM_BF (specbind_tag) kind : CHAR_BIT; | |
5d1922cd | 2563 | bool wind_explicitly; |
27e498e6 | 2564 | void (*func) (Lisp_Object); |
9349e5f7 | 2565 | Lisp_Object arg; |
9349e5f7 | 2566 | } unwind; |
27e498e6 PE |
2567 | struct { |
2568 | ENUM_BF (specbind_tag) kind : CHAR_BIT; | |
5d1922cd | 2569 | bool wind_explicitly; |
27e498e6 PE |
2570 | void (*func) (void *); |
2571 | void *arg; | |
2572 | } unwind_ptr; | |
2573 | struct { | |
2574 | ENUM_BF (specbind_tag) kind : CHAR_BIT; | |
5d1922cd | 2575 | bool wind_explicitly; |
27e498e6 PE |
2576 | void (*func) (int); |
2577 | int arg; | |
2578 | } unwind_int; | |
2579 | struct { | |
2580 | ENUM_BF (specbind_tag) kind : CHAR_BIT; | |
5d1922cd | 2581 | bool wind_explicitly; |
27e498e6 PE |
2582 | void (*func) (void); |
2583 | } unwind_void; | |
9349e5f7 PE |
2584 | struct { |
2585 | ENUM_BF (specbind_tag) kind : CHAR_BIT; | |
2586 | /* `where' is not used in the case of SPECPDL_LET. */ | |
2587 | Lisp_Object symbol, old_value, where; | |
2588 | } let; | |
2589 | struct { | |
2590 | ENUM_BF (specbind_tag) kind : CHAR_BIT; | |
96c06863 | 2591 | bool_bf debug_on_exit : 1; |
9349e5f7 PE |
2592 | Lisp_Object function; |
2593 | Lisp_Object *args; | |
2594 | ptrdiff_t nargs; | |
2595 | } bt; | |
3cfe6dfd JB |
2596 | }; |
2597 | ||
9349e5f7 PE |
2598 | extern union specbinding *specpdl; |
2599 | extern union specbinding *specpdl_ptr; | |
d311d28c | 2600 | extern ptrdiff_t specpdl_size; |
3cfe6dfd | 2601 | |
00382e8b | 2602 | INLINE ptrdiff_t |
84575e67 PE |
2603 | SPECPDL_INDEX (void) |
2604 | { | |
2605 | return specpdl_ptr - specpdl; | |
2606 | } | |
acb8dc44 | 2607 | |
adf2aa61 SM |
2608 | /* This structure helps implement the `catch/throw' and `condition-case/signal' |
2609 | control structures. A struct handler contains all the information needed to | |
2610 | restore the state of the interpreter after a non-local jump. | |
50f2e553 | 2611 | |
adf2aa61 SM |
2612 | handler structures are chained together in a doubly linked list; the `next' |
2613 | member points to the next outer catchtag and the `nextfree' member points in | |
2614 | the other direction to the next inner element (which is typically the next | |
2615 | free element since we mostly use it on the deepest handler). | |
3cfe6dfd | 2616 | |
adf2aa61 | 2617 | A call like (throw TAG VAL) searches for a catchtag whose `tag_or_ch' |
d7306fe6 DN |
2618 | member is TAG, and then unbinds to it. The `val' member is used to |
2619 | hold VAL while the stack is unwound; `val' is returned as the value | |
2620 | of the catch form. | |
2621 | ||
2622 | All the other members are concerned with restoring the interpreter | |
50f2e553 | 2623 | state. |
d7306fe6 | 2624 | |
50f2e553 | 2625 | Members are volatile if their values need to survive _longjmp when |
adf2aa61 SM |
2626 | a 'struct handler' is a local variable. */ |
2627 | ||
2628 | enum handlertype { CATCHER, CONDITION_CASE }; | |
2629 | ||
2630 | struct handler | |
d7306fe6 | 2631 | { |
adf2aa61 | 2632 | enum handlertype type; |
6376ba30 | 2633 | Lisp_Object ptag; |
adf2aa61 SM |
2634 | Lisp_Object tag_or_ch; |
2635 | Lisp_Object val; | |
6376ba30 BT |
2636 | Lisp_Object var; |
2637 | Lisp_Object body; | |
adf2aa61 | 2638 | struct handler *next; |
d311d28c | 2639 | EMACS_INT lisp_eval_depth; |
d7306fe6 DN |
2640 | int poll_suppress_count; |
2641 | int interrupt_input_blocked; | |
d7306fe6 DN |
2642 | }; |
2643 | ||
22bbbd42 RS |
2644 | extern Lisp_Object memory_signal_data; |
2645 | ||
4742f524 RS |
2646 | /* Check quit-flag and quit if it is non-nil. |
2647 | Typing C-g does not directly cause a quit; it only sets Vquit_flag. | |
2648 | So the program needs to do QUIT at times when it is safe to quit. | |
2649 | Every loop that might run for a long time or might not exit | |
2650 | ought to do QUIT at least once, at a safe place. | |
2651 | Unless that is impossible, of course. | |
2652 | But it is very desirable to avoid creating loops where QUIT is impossible. | |
2653 | ||
96c06863 | 2654 | Exception: if you set immediate_quit to true, |
4742f524 RS |
2655 | then the handler that responds to the C-g does the quit itself. |
2656 | This is a good thing to do around a loop that has no side effects | |
6c07aac2 AS |
2657 | and (in particular) cannot call arbitrary Lisp code. |
2658 | ||
2659 | If quit-flag is set to `kill-emacs' the SIGINT handler has received | |
2660 | a request to exit Emacs when it is safe to do. */ | |
3cfe6dfd | 2661 | |
383e0970 | 2662 | extern void process_pending_signals (void); |
88d69b7d | 2663 | extern bool volatile pending_signals; |
6b61353c | 2664 | |
7dbda6df | 2665 | extern void process_quit_flag (void); |
a69a6e61 GM |
2666 | #define QUIT \ |
2667 | do { \ | |
2668 | if (!NILP (Vquit_flag) && NILP (Vinhibit_quit)) \ | |
6d5eb5b0 | 2669 | process_quit_flag (); \ |
0caaedb1 PE |
2670 | else if (pending_signals) \ |
2671 | process_pending_signals (); \ | |
96c06863 | 2672 | } while (false) |
3cfe6dfd | 2673 | |
6b61353c | 2674 | |
96c06863 | 2675 | /* True if ought to quit now. */ |
3cfe6dfd | 2676 | |
efb859b4 | 2677 | #define QUITP (!NILP (Vquit_flag) && NILP (Vinhibit_quit)) |
3cfe6dfd | 2678 | \f |
31cd66f3 PE |
2679 | extern Lisp_Object Vascii_downcase_table; |
2680 | extern Lisp_Object Vascii_canon_table; | |
3cfe6dfd | 2681 | \f |
99a3d506 | 2682 | /* Structure for recording stack slots that need marking. */ |
3cfe6dfd | 2683 | |
78edd3b7 JB |
2684 | /* This is a chain of structures, each of which points at a Lisp_Object |
2685 | variable whose value should be marked in garbage collection. | |
2686 | Normally every link of the chain is an automatic variable of a function, | |
2687 | and its `val' points to some argument or local variable of the function. | |
2688 | On exit to the function, the chain is set back to the value it had on entry. | |
2689 | This way, no link remains in the chain when the stack frame containing the | |
2690 | link disappears. | |
3cfe6dfd | 2691 | |
78edd3b7 JB |
2692 | Every function that can call Feval must protect in this fashion all |
2693 | Lisp_Object variables whose contents will be used again. */ | |
3cfe6dfd JB |
2694 | |
2695 | extern struct gcpro *gcprolist; | |
2696 | ||
2697 | struct gcpro | |
834168ef GM |
2698 | { |
2699 | struct gcpro *next; | |
e2c0561e | 2700 | |
834168ef GM |
2701 | /* Address of first protected variable. */ |
2702 | volatile Lisp_Object *var; | |
e2c0561e | 2703 | |
834168ef | 2704 | /* Number of consecutive protected variables. */ |
f66c7cf8 | 2705 | ptrdiff_t nvars; |
e2c0561e | 2706 | |
4742f524 | 2707 | #ifdef DEBUG_GCPRO |
834168ef | 2708 | int level; |
4742f524 | 2709 | #endif |
834168ef | 2710 | }; |
3cfe6dfd | 2711 | |
9f0443f9 | 2712 | /* Do something silly with gcproN vars just so gcc shuts up. */ |
656c33dc | 2713 | /* You get warnings from MIPSPro... */ |
9f0443f9 | 2714 | |
dbf31225 PE |
2715 | #define GCPRO1(varname) ((void) gcpro1) |
2716 | #define GCPRO2(varname1, varname2) ((void) gcpro2, (void) gcpro1) | |
2717 | #define GCPRO3(varname1, varname2, varname3) \ | |
2718 | ((void) gcpro3, (void) gcpro2, (void) gcpro1) | |
2719 | #define GCPRO4(varname1, varname2, varname3, varname4) \ | |
2720 | ((void) gcpro4, (void) gcpro3, (void) gcpro2, (void) gcpro1) | |
2721 | #define GCPRO5(varname1, varname2, varname3, varname4, varname5) \ | |
2722 | ((void) gcpro5, (void) gcpro4, (void) gcpro3, (void) gcpro2, (void) gcpro1) | |
2723 | #define GCPRO6(varname1, varname2, varname3, varname4, varname5, varname6) \ | |
2724 | ((void) gcpro6, (void) gcpro5, (void) gcpro4, (void) gcpro3, (void) gcpro2, \ | |
2725 | (void) gcpro1) | |
518c40a2 | 2726 | #define GCPRO7(a, b, c, d, e, f, g) (GCPRO6 (a, b, c, d, e, f), (void) gcpro7) |
dbf31225 | 2727 | #define UNGCPRO ((void) 0) |
1216f5e4 | 2728 | |
5db82c9d | 2729 | /* Evaluate expr, UNGCPRO, and then return the value of expr. */ |
c47b8d02 | 2730 | #define RETURN_UNGCPRO(expr) \ |
96c06863 | 2731 | do \ |
c47b8d02 RS |
2732 | { \ |
2733 | Lisp_Object ret_ungc_val; \ | |
2734 | ret_ungc_val = (expr); \ | |
2735 | UNGCPRO; \ | |
2736 | return ret_ungc_val; \ | |
2737 | } \ | |
96c06863 | 2738 | while (false) |
4742f524 RS |
2739 | |
2740 | /* Call staticpro (&var) to protect static variable `var'. */ | |
2741 | ||
383e0970 | 2742 | void staticpro (Lisp_Object *); |
3cfe6dfd | 2743 | \f |
2f69f2ec RS |
2744 | /* Declare a Lisp-callable function. The MAXARGS parameter has the same |
2745 | meaning as in the DEFUN macro, and is used to construct a prototype. */ | |
2f69f2ec RS |
2746 | /* We can use the same trick as in the DEFUN macro to generate the |
2747 | appropriate prototype. */ | |
2748 | #define EXFUN(fnname, maxargs) \ | |
2749 | extern Lisp_Object fnname DEFUN_ARGS_ ## maxargs | |
2f69f2ec | 2750 | |
84575e67 PE |
2751 | #include "globals.h" |
2752 | ||
526a2be7 AS |
2753 | /* Forward declarations for prototypes. */ |
2754 | struct window; | |
2755 | struct frame; | |
2f69f2ec | 2756 | |
086ca913 DA |
2757 | /* Copy COUNT Lisp_Objects from ARGS to contents of V starting from OFFSET. */ |
2758 | ||
00382e8b | 2759 | INLINE void |
086ca913 DA |
2760 | vcopy (Lisp_Object v, ptrdiff_t offset, Lisp_Object *args, ptrdiff_t count) |
2761 | { | |
7216e43b | 2762 | eassert (0 <= offset && 0 <= count && offset + count <= ASIZE (v)); |
91f2d272 | 2763 | memcpy (XVECTOR (v)->contents + offset, args, count * sizeof *args); |
086ca913 DA |
2764 | } |
2765 | ||
2766 | /* Functions to modify hash tables. */ | |
2767 | ||
00382e8b | 2768 | INLINE void |
e83064be | 2769 | set_hash_key_slot (struct Lisp_Hash_Table *h, ptrdiff_t idx, Lisp_Object val) |
4939150c | 2770 | { |
8834c57a | 2771 | gc_aset (h->key_and_value, 2 * idx, val); |
4939150c PE |
2772 | } |
2773 | ||
00382e8b | 2774 | INLINE void |
e83064be | 2775 | set_hash_value_slot (struct Lisp_Hash_Table *h, ptrdiff_t idx, Lisp_Object val) |
4939150c | 2776 | { |
8834c57a | 2777 | gc_aset (h->key_and_value, 2 * idx + 1, val); |
4939150c PE |
2778 | } |
2779 | ||
c644523b DA |
2780 | /* Use these functions to set Lisp_Object |
2781 | or pointer slots of struct Lisp_Symbol. */ | |
2782 | ||
00382e8b | 2783 | INLINE void |
c644523b DA |
2784 | set_symbol_function (Lisp_Object sym, Lisp_Object function) |
2785 | { | |
2786 | XSYMBOL (sym)->function = function; | |
2787 | } | |
2788 | ||
00382e8b | 2789 | INLINE void |
c644523b DA |
2790 | set_symbol_plist (Lisp_Object sym, Lisp_Object plist) |
2791 | { | |
2792 | XSYMBOL (sym)->plist = plist; | |
2793 | } | |
2794 | ||
00382e8b | 2795 | INLINE void |
c644523b DA |
2796 | set_symbol_next (Lisp_Object sym, struct Lisp_Symbol *next) |
2797 | { | |
2798 | XSYMBOL (sym)->next = next; | |
2799 | } | |
2800 | ||
a04e2c62 DA |
2801 | /* Buffer-local (also frame-local) variable access functions. */ |
2802 | ||
00382e8b | 2803 | INLINE int |
a04e2c62 DA |
2804 | blv_found (struct Lisp_Buffer_Local_Value *blv) |
2805 | { | |
2806 | eassert (blv->found == !EQ (blv->defcell, blv->valcell)); | |
2807 | return blv->found; | |
2808 | } | |
2809 | ||
c644523b DA |
2810 | /* Set overlay's property list. */ |
2811 | ||
00382e8b | 2812 | INLINE void |
c644523b DA |
2813 | set_overlay_plist (Lisp_Object overlay, Lisp_Object plist) |
2814 | { | |
2815 | XOVERLAY (overlay)->plist = plist; | |
2816 | } | |
2817 | ||
ad8c997f DA |
2818 | /* Get text properties of S. */ |
2819 | ||
00382e8b | 2820 | INLINE INTERVAL |
0c94c8d6 | 2821 | string_intervals (Lisp_Object s) |
ad8c997f DA |
2822 | { |
2823 | return XSTRING (s)->intervals; | |
2824 | } | |
2825 | ||
2826 | /* Set text properties of S to I. */ | |
2827 | ||
00382e8b | 2828 | INLINE void |
0c94c8d6 | 2829 | set_string_intervals (Lisp_Object s, INTERVAL i) |
ad8c997f DA |
2830 | { |
2831 | XSTRING (s)->intervals = i; | |
2832 | } | |
2833 | ||
742af32f PE |
2834 | /* Set a Lisp slot in TABLE to VAL. Most code should use this instead |
2835 | of setting slots directly. */ | |
2836 | ||
00382e8b | 2837 | INLINE void |
742af32f PE |
2838 | set_char_table_defalt (Lisp_Object table, Lisp_Object val) |
2839 | { | |
2840 | XCHAR_TABLE (table)->defalt = val; | |
2841 | } | |
00382e8b | 2842 | INLINE void |
742af32f PE |
2843 | set_char_table_purpose (Lisp_Object table, Lisp_Object val) |
2844 | { | |
2845 | XCHAR_TABLE (table)->purpose = val; | |
2846 | } | |
2847 | ||
a098c930 DA |
2848 | /* Set different slots in (sub)character tables. */ |
2849 | ||
00382e8b | 2850 | INLINE void |
34dabdb7 | 2851 | set_char_table_extras (Lisp_Object table, ptrdiff_t idx, Lisp_Object val) |
a098c930 DA |
2852 | { |
2853 | eassert (0 <= idx && idx < CHAR_TABLE_EXTRA_SLOTS (XCHAR_TABLE (table))); | |
2854 | XCHAR_TABLE (table)->extras[idx] = val; | |
2855 | } | |
2856 | ||
00382e8b | 2857 | INLINE void |
34dabdb7 | 2858 | set_char_table_contents (Lisp_Object table, ptrdiff_t idx, Lisp_Object val) |
a098c930 DA |
2859 | { |
2860 | eassert (0 <= idx && idx < (1 << CHARTAB_SIZE_BITS_0)); | |
2861 | XCHAR_TABLE (table)->contents[idx] = val; | |
2862 | } | |
2863 | ||
00382e8b | 2864 | INLINE void |
34dabdb7 | 2865 | set_sub_char_table_contents (Lisp_Object table, ptrdiff_t idx, Lisp_Object val) |
a098c930 DA |
2866 | { |
2867 | XSUB_CHAR_TABLE (table)->contents[idx] = val; | |
2868 | } | |
2869 | ||
f6d62986 | 2870 | /* Defined in data.c. */ |
73bfe891 | 2871 | extern Lisp_Object Qquote, Qunbound; |
3cfe6dfd | 2872 | extern Lisp_Object Qerror_conditions, Qerror_message, Qtop_level; |
955cbe7b | 2873 | extern Lisp_Object Qerror, Qquit, Qargs_out_of_range; |
3cfe6dfd | 2874 | extern Lisp_Object Qvoid_variable, Qvoid_function; |
955cbe7b | 2875 | extern Lisp_Object Qinvalid_read_syntax; |
3cfe6dfd | 2876 | extern Lisp_Object Qinvalid_function, Qwrong_number_of_arguments, Qno_catch; |
71873e2b | 2877 | extern Lisp_Object Quser_error, Qend_of_file, Qarith_error, Qmark_inactive; |
3cfe6dfd | 2878 | extern Lisp_Object Qbeginning_of_buffer, Qend_of_buffer, Qbuffer_read_only; |
6b61353c | 2879 | extern Lisp_Object Qtext_read_only; |
e6cba650 | 2880 | extern Lisp_Object Qinteractive_form; |
99f3388e | 2881 | extern Lisp_Object Qcircular_list; |
73bfe891 PE |
2882 | extern Lisp_Object Qsequencep; |
2883 | extern Lisp_Object Qchar_or_string_p, Qinteger_or_marker_p; | |
955cbe7b | 2884 | extern Lisp_Object Qfboundp; |
6b61353c | 2885 | |
3cfe6dfd JB |
2886 | extern Lisp_Object Qcdr; |
2887 | ||
c990426a | 2888 | extern Lisp_Object Qrange_error, Qoverflow_error; |
3cfe6dfd | 2889 | |
73bfe891 | 2890 | extern Lisp_Object Qnumber_or_marker_p; |
6b61353c | 2891 | |
b52d6985 | 2892 | extern Lisp_Object Qbuffer, Qinteger, Qsymbol; |
3cfe6dfd | 2893 | |
e7032e7c | 2894 | /* Defined in data.c. */ |
383e0970 | 2895 | extern Lisp_Object indirect_function (Lisp_Object); |
383e0970 | 2896 | extern Lisp_Object find_symbol_value (Lisp_Object); |
ebb99847 BR |
2897 | enum Arith_Comparison { |
2898 | ARITH_EQUAL, | |
2899 | ARITH_NOTEQUAL, | |
2900 | ARITH_LESS, | |
2901 | ARITH_GRTR, | |
2902 | ARITH_LESS_OR_EQUAL, | |
2903 | ARITH_GRTR_OR_EQUAL | |
2904 | }; | |
2905 | extern Lisp_Object arithcompare (Lisp_Object num1, Lisp_Object num2, | |
2906 | enum Arith_Comparison comparison); | |
2f69f2ec | 2907 | |
be44ca6c PE |
2908 | /* Convert the integer I to an Emacs representation, either the integer |
2909 | itself, or a cons of two or three integers, or if all else fails a float. | |
2910 | I should not have side effects. */ | |
2911 | #define INTEGER_TO_CONS(i) \ | |
2912 | (! FIXNUM_OVERFLOW_P (i) \ | |
2913 | ? make_number (i) \ | |
2914 | : ! ((FIXNUM_OVERFLOW_P (INTMAX_MIN >> 16) \ | |
2915 | || FIXNUM_OVERFLOW_P (UINTMAX_MAX >> 16)) \ | |
2916 | && FIXNUM_OVERFLOW_P ((i) >> 16)) \ | |
2917 | ? Fcons (make_number ((i) >> 16), make_number ((i) & 0xffff)) \ | |
2918 | : ! ((FIXNUM_OVERFLOW_P (INTMAX_MIN >> 16 >> 24) \ | |
2919 | || FIXNUM_OVERFLOW_P (UINTMAX_MAX >> 16 >> 24)) \ | |
2920 | && FIXNUM_OVERFLOW_P ((i) >> 16 >> 24)) \ | |
2921 | ? Fcons (make_number ((i) >> 16 >> 24), \ | |
2922 | Fcons (make_number ((i) >> 16 & 0xffffff), \ | |
2923 | make_number ((i) & 0xffff))) \ | |
2924 | : make_float (i)) | |
2925 | ||
2926 | /* Convert the Emacs representation CONS back to an integer of type | |
2927 | TYPE, storing the result the variable VAR. Signal an error if CONS | |
2928 | is not a valid representation or is out of range for TYPE. */ | |
2929 | #define CONS_TO_INTEGER(cons, type, var) \ | |
2930 | (TYPE_SIGNED (type) \ | |
2931 | ? ((var) = cons_to_signed (cons, TYPE_MINIMUM (type), TYPE_MAXIMUM (type))) \ | |
2932 | : ((var) = cons_to_unsigned (cons, TYPE_MAXIMUM (type)))) | |
2933 | extern intmax_t cons_to_signed (Lisp_Object, intmax_t, intmax_t); | |
2934 | extern uintmax_t cons_to_unsigned (Lisp_Object, uintmax_t); | |
2935 | ||
ad97b375 | 2936 | extern struct Lisp_Symbol *indirect_variable (struct Lisp_Symbol *); |
845ca893 PE |
2937 | extern _Noreturn void args_out_of_range (Lisp_Object, Lisp_Object); |
2938 | extern _Noreturn void args_out_of_range_3 (Lisp_Object, Lisp_Object, | |
2939 | Lisp_Object); | |
ce5b453a | 2940 | extern Lisp_Object do_symval_forwarding (union Lisp_Fwd *); |
de1339b0 | 2941 | extern void set_internal (Lisp_Object, Lisp_Object, Lisp_Object, bool); |
383e0970 | 2942 | extern void syms_of_data (void); |
383e0970 | 2943 | extern void swap_in_global_binding (struct Lisp_Symbol *); |
3cfe6dfd | 2944 | |
a37e10f9 | 2945 | /* Defined in cmds.c */ |
383e0970 J |
2946 | extern void syms_of_cmds (void); |
2947 | extern void keys_of_cmds (void); | |
a37e10f9 | 2948 | |
e7032e7c | 2949 | /* Defined in coding.c. */ |
2f7c71a1 | 2950 | extern Lisp_Object Qcharset; |
d311d28c | 2951 | extern Lisp_Object detect_coding_system (const unsigned char *, ptrdiff_t, |
f10fe38f | 2952 | ptrdiff_t, bool, bool, Lisp_Object); |
383e0970 J |
2953 | extern void init_coding (void); |
2954 | extern void init_coding_once (void); | |
2955 | extern void syms_of_coding (void); | |
1842abb2 | 2956 | |
e7032e7c | 2957 | /* Defined in character.c. */ |
d311d28c PE |
2958 | extern ptrdiff_t chars_in_text (const unsigned char *, ptrdiff_t); |
2959 | extern ptrdiff_t multibyte_chars_in_text (const unsigned char *, ptrdiff_t); | |
2f7c71a1 AS |
2960 | extern void syms_of_character (void); |
2961 | ||
e7032e7c | 2962 | /* Defined in charset.c. */ |
383e0970 J |
2963 | extern void init_charset (void); |
2964 | extern void init_charset_once (void); | |
2965 | extern void syms_of_charset (void); | |
8f924df7 KH |
2966 | /* Structure forward declarations. */ |
2967 | struct charset; | |
5e741a41 | 2968 | |
e7032e7c | 2969 | /* Defined in syntax.c. */ |
383e0970 J |
2970 | extern void init_syntax_once (void); |
2971 | extern void syms_of_syntax (void); | |
a37e10f9 | 2972 | |
e7032e7c | 2973 | /* Defined in fns.c. */ |
99f3388e | 2974 | extern Lisp_Object QCrehash_size, QCrehash_threshold; |
ca9ce8f2 | 2975 | enum { NEXT_ALMOST_PRIME_LIMIT = 11 }; |
5994c183 | 2976 | extern EMACS_INT next_almost_prime (EMACS_INT) ATTRIBUTE_CONST; |
d311d28c | 2977 | extern Lisp_Object larger_vector (Lisp_Object, ptrdiff_t, ptrdiff_t); |
383e0970 | 2978 | extern void sweep_weak_hash_tables (void); |
e6cba650 | 2979 | extern Lisp_Object Qcursor_in_echo_area; |
3cfe6dfd | 2980 | extern Lisp_Object Qstring_lessp; |
53371430 | 2981 | extern Lisp_Object QCsize, QCtest, QCweakness, Qequal, Qeq; |
3cc5a532 | 2982 | EMACS_UINT hash_string (char const *, ptrdiff_t); |
0de4bb68 | 2983 | EMACS_UINT sxhash (Lisp_Object, int); |
b7432bb2 SM |
2984 | Lisp_Object make_hash_table (struct hash_table_test, Lisp_Object, Lisp_Object, |
2985 | Lisp_Object, Lisp_Object); | |
d3411f89 PE |
2986 | ptrdiff_t hash_lookup (struct Lisp_Hash_Table *, Lisp_Object, EMACS_UINT *); |
2987 | ptrdiff_t hash_put (struct Lisp_Hash_Table *, Lisp_Object, Lisp_Object, | |
0de4bb68 | 2988 | EMACS_UINT); |
53371430 | 2989 | extern struct hash_table_test hashtest_eql, hashtest_equal; |
51e12e8e DA |
2990 | extern void validate_subarray (Lisp_Object, Lisp_Object, Lisp_Object, |
2991 | ptrdiff_t, ptrdiff_t *, ptrdiff_t *); | |
d311d28c PE |
2992 | extern Lisp_Object substring_both (Lisp_Object, ptrdiff_t, ptrdiff_t, |
2993 | ptrdiff_t, ptrdiff_t); | |
6318cde0 | 2994 | extern Lisp_Object merge (Lisp_Object, Lisp_Object, Lisp_Object); |
383e0970 | 2995 | extern Lisp_Object do_yes_or_no_p (Lisp_Object); |
383e0970 J |
2996 | extern Lisp_Object concat2 (Lisp_Object, Lisp_Object); |
2997 | extern Lisp_Object concat3 (Lisp_Object, Lisp_Object, Lisp_Object); | |
2998 | extern Lisp_Object nconc2 (Lisp_Object, Lisp_Object); | |
2999 | extern Lisp_Object assq_no_quit (Lisp_Object, Lisp_Object); | |
3000 | extern Lisp_Object assoc_no_quit (Lisp_Object, Lisp_Object); | |
3001 | extern void clear_string_char_byte_cache (void); | |
d311d28c PE |
3002 | extern ptrdiff_t string_char_to_byte (Lisp_Object, ptrdiff_t); |
3003 | extern ptrdiff_t string_byte_to_char (Lisp_Object, ptrdiff_t); | |
383e0970 J |
3004 | extern Lisp_Object string_to_multibyte (Lisp_Object); |
3005 | extern Lisp_Object string_make_unibyte (Lisp_Object); | |
42808ce3 | 3006 | extern void init_fns_once (void); |
383e0970 | 3007 | extern void syms_of_fns (void); |
2f69f2ec | 3008 | |
e7032e7c | 3009 | /* Defined in floatfns.c. */ |
383e0970 | 3010 | extern void syms_of_floatfns (void); |
3d608a86 | 3011 | extern Lisp_Object fmod_float (Lisp_Object x, Lisp_Object y); |
3cfe6dfd | 3012 | |
e7032e7c | 3013 | /* Defined in fringe.c. */ |
383e0970 J |
3014 | extern void syms_of_fringe (void); |
3015 | extern void init_fringe (void); | |
524c7aa6 PE |
3016 | #ifdef HAVE_WINDOW_SYSTEM |
3017 | extern void mark_fringe_data (void); | |
383e0970 | 3018 | extern void init_fringe_once (void); |
524c7aa6 | 3019 | #endif /* HAVE_WINDOW_SYSTEM */ |
6b61353c | 3020 | |
e7032e7c | 3021 | /* Defined in image.c. */ |
955cbe7b PE |
3022 | extern Lisp_Object QCascent, QCmargin, QCrelief; |
3023 | extern Lisp_Object QCconversion; | |
0766b489 | 3024 | extern int x_bitmap_mask (struct frame *, ptrdiff_t); |
aa15c6bb | 3025 | extern void reset_image_types (void); |
383e0970 | 3026 | extern void syms_of_image (void); |
6b61353c | 3027 | |
e7032e7c | 3028 | /* Defined in insdel.c. */ |
b8b31967 | 3029 | extern Lisp_Object Qinhibit_modification_hooks; |
73bfe891 | 3030 | extern Lisp_Object Qregion_extract_function; |
d311d28c | 3031 | extern void move_gap_both (ptrdiff_t, ptrdiff_t); |
845ca893 | 3032 | extern _Noreturn void buffer_overflow (void); |
d311d28c | 3033 | extern void make_gap (ptrdiff_t); |
eefd7278 | 3034 | extern void make_gap_1 (struct buffer *, ptrdiff_t); |
d311d28c | 3035 | extern ptrdiff_t copy_text (const unsigned char *, unsigned char *, |
a08d4ba7 | 3036 | ptrdiff_t, bool, bool); |
ae19ba7c | 3037 | extern int count_combining_before (const unsigned char *, |
d311d28c | 3038 | ptrdiff_t, ptrdiff_t, ptrdiff_t); |
ae19ba7c | 3039 | extern int count_combining_after (const unsigned char *, |
d311d28c PE |
3040 | ptrdiff_t, ptrdiff_t, ptrdiff_t); |
3041 | extern void insert (const char *, ptrdiff_t); | |
3042 | extern void insert_and_inherit (const char *, ptrdiff_t); | |
d311d28c | 3043 | extern void insert_1_both (const char *, ptrdiff_t, ptrdiff_t, |
a08d4ba7 | 3044 | bool, bool, bool); |
8a44e6d1 | 3045 | extern void insert_from_gap (ptrdiff_t, ptrdiff_t, bool text_at_gap_tail); |
d311d28c | 3046 | extern void insert_from_string (Lisp_Object, ptrdiff_t, ptrdiff_t, |
a08d4ba7 PE |
3047 | ptrdiff_t, ptrdiff_t, bool); |
3048 | extern void insert_from_buffer (struct buffer *, ptrdiff_t, ptrdiff_t, bool); | |
ae19ba7c SM |
3049 | extern void insert_char (int); |
3050 | extern void insert_string (const char *); | |
d311d28c PE |
3051 | extern void insert_before_markers (const char *, ptrdiff_t); |
3052 | extern void insert_before_markers_and_inherit (const char *, ptrdiff_t); | |
3053 | extern void insert_from_string_before_markers (Lisp_Object, ptrdiff_t, | |
3054 | ptrdiff_t, ptrdiff_t, | |
a08d4ba7 | 3055 | ptrdiff_t, bool); |
d311d28c | 3056 | extern void del_range (ptrdiff_t, ptrdiff_t); |
a08d4ba7 PE |
3057 | extern Lisp_Object del_range_1 (ptrdiff_t, ptrdiff_t, bool, bool); |
3058 | extern void del_range_byte (ptrdiff_t, ptrdiff_t, bool); | |
3059 | extern void del_range_both (ptrdiff_t, ptrdiff_t, ptrdiff_t, ptrdiff_t, bool); | |
d311d28c | 3060 | extern Lisp_Object del_range_2 (ptrdiff_t, ptrdiff_t, |
a08d4ba7 | 3061 | ptrdiff_t, ptrdiff_t, bool); |
00012b86 | 3062 | extern void modify_text (ptrdiff_t, ptrdiff_t); |
d311d28c | 3063 | extern void prepare_to_modify_buffer (ptrdiff_t, ptrdiff_t, ptrdiff_t *); |
00012b86 | 3064 | extern void prepare_to_modify_buffer_1 (ptrdiff_t, ptrdiff_t, ptrdiff_t *); |
37c790b3 | 3065 | extern void invalidate_buffer_caches (struct buffer *, ptrdiff_t, ptrdiff_t); |
d311d28c PE |
3066 | extern void signal_after_change (ptrdiff_t, ptrdiff_t, ptrdiff_t); |
3067 | extern void adjust_after_insert (ptrdiff_t, ptrdiff_t, ptrdiff_t, | |
3068 | ptrdiff_t, ptrdiff_t); | |
3069 | extern void adjust_markers_for_delete (ptrdiff_t, ptrdiff_t, | |
3070 | ptrdiff_t, ptrdiff_t); | |
a08d4ba7 | 3071 | extern void replace_range (ptrdiff_t, ptrdiff_t, Lisp_Object, bool, bool, bool); |
d311d28c | 3072 | extern void replace_range_2 (ptrdiff_t, ptrdiff_t, ptrdiff_t, ptrdiff_t, |
a08d4ba7 | 3073 | const char *, ptrdiff_t, ptrdiff_t, bool); |
ae19ba7c | 3074 | extern void syms_of_insdel (void); |
c98adc1b | 3075 | |
e7032e7c | 3076 | /* Defined in dispnew.c. */ |
9e4bf381 PE |
3077 | #if (defined PROFILING \ |
3078 | && (defined __FreeBSD__ || defined GNU_LINUX || defined __MINGW32__)) | |
845ca893 | 3079 | _Noreturn void __executable_start (void); |
9e4bf381 | 3080 | #endif |
7684e57b | 3081 | extern Lisp_Object Vwindow_system; |
59ea14cd | 3082 | extern Lisp_Object sit_for (Lisp_Object, bool, int); |
1747fb16 | 3083 | |
e7032e7c | 3084 | /* Defined in xdisp.c. */ |
c6ae41f3 | 3085 | extern Lisp_Object Qinhibit_point_motion_hooks; |
73bfe891 | 3086 | extern Lisp_Object Qinhibit_redisplay; |
99f3388e | 3087 | extern Lisp_Object Qmenu_bar_update_hook; |
29208e82 | 3088 | extern Lisp_Object Qwindow_scroll_functions; |
99f3388e | 3089 | extern Lisp_Object Qoverriding_local_map, Qoverriding_terminal_local_map; |
73bfe891 | 3090 | extern Lisp_Object Qtext, Qboth, Qboth_horiz, Qtext_image_horiz; |
89dc303e | 3091 | extern Lisp_Object Qspace, Qcenter, QCalign_to; |
73bfe891 | 3092 | extern Lisp_Object Qbar, Qhbar, Qhollow; |
99f3388e | 3093 | extern Lisp_Object Qleft_margin, Qright_margin; |
89dc303e | 3094 | extern Lisp_Object QCdata, QCfile; |
99f3388e | 3095 | extern Lisp_Object QCmap; |
e6cba650 | 3096 | extern Lisp_Object Qrisky_local_variable; |
e08813d0 | 3097 | extern bool noninteractive_need_newline; |
986113df | 3098 | extern Lisp_Object echo_area_buffer[2]; |
89dc303e | 3099 | extern void add_to_log (const char *, Lisp_Object, Lisp_Object); |
383e0970 J |
3100 | extern void check_message_stack (void); |
3101 | extern void setup_echo_area_for_printing (int); | |
fce31d69 | 3102 | extern bool push_message (void); |
27e498e6 | 3103 | extern void pop_message_unwind (void); |
383e0970 | 3104 | extern Lisp_Object restore_message_unwind (Lisp_Object); |
383e0970 J |
3105 | extern void restore_message (void); |
3106 | extern Lisp_Object current_message (void); | |
44ad1cf7 | 3107 | extern void clear_message (bool, bool); |
1e973bc7 | 3108 | extern void message (const char *, ...) ATTRIBUTE_FORMAT_PRINTF (1, 2); |
a8fe7202 AS |
3109 | extern void message1 (const char *); |
3110 | extern void message1_nolog (const char *); | |
b09cca6a SM |
3111 | extern void message3 (Lisp_Object); |
3112 | extern void message3_nolog (Lisp_Object); | |
0063fdb1 | 3113 | extern void message_dolog (const char *, ptrdiff_t, bool, bool); |
a8fe7202 | 3114 | extern void message_with_string (const char *, Lisp_Object, int); |
383e0970 J |
3115 | extern void message_log_maybe_newline (void); |
3116 | extern void update_echo_area (void); | |
d311d28c | 3117 | extern void truncate_echo_area (ptrdiff_t); |
383e0970 | 3118 | extern void redisplay (void); |
c4bf5bc3 | 3119 | |
383e0970 J |
3120 | void set_frame_cursor_types (struct frame *, Lisp_Object); |
3121 | extern void syms_of_xdisp (void); | |
3122 | extern void init_xdisp (void); | |
3123 | extern Lisp_Object safe_eval (Lisp_Object); | |
d311d28c | 3124 | extern int pos_visible_p (struct window *, ptrdiff_t, int *, |
383e0970 | 3125 | int *, int *, int *, int *, int *); |
c98adc1b | 3126 | |
e7032e7c | 3127 | /* Defined in xsettings.c. */ |
383e0970 | 3128 | extern void syms_of_xsettings (void); |
637fa988 | 3129 | |
15b0ced5 | 3130 | /* Defined in vm-limit.c. */ |
261cb4bb | 3131 | extern void memory_warnings (void *, void (*warnfun) (const char *)); |
9043c90a | 3132 | |
e7032e7c | 3133 | /* Defined in alloc.c. */ |
383e0970 | 3134 | extern void check_pure_size (void); |
73ebd38f | 3135 | extern void free_misc (Lisp_Object); |
413d18e7 | 3136 | extern void allocate_string_data (struct Lisp_String *, EMACS_INT, EMACS_INT); |
a8fe7202 | 3137 | extern void malloc_warning (const char *); |
845ca893 PE |
3138 | extern _Noreturn void memory_full (size_t); |
3139 | extern _Noreturn void buffer_memory_full (ptrdiff_t); | |
69003fd8 | 3140 | #if defined REL_ALLOC && !defined SYSTEM_MALLOC |
84dfc8a7 | 3141 | extern void refill_memory_reserve (void); |
69003fd8 | 3142 | #endif |
50c77428 | 3143 | extern const char *pending_malloc_warning; |
9730daca | 3144 | extern Lisp_Object zero_vector; |
2f7c71a1 AS |
3145 | extern Lisp_Object list1 (Lisp_Object); |
3146 | extern Lisp_Object list2 (Lisp_Object, Lisp_Object); | |
3147 | extern Lisp_Object list3 (Lisp_Object, Lisp_Object, Lisp_Object); | |
3148 | extern Lisp_Object list4 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); | |
3149 | extern Lisp_Object list5 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, | |
3150 | Lisp_Object); | |
3438fe21 | 3151 | enum constype {CONSTYPE_HEAP, CONSTYPE_PURE}; |
694b6c97 | 3152 | extern Lisp_Object listn (enum constype, ptrdiff_t, Lisp_Object, ...); |
3de717bd DA |
3153 | |
3154 | /* Build a frequently used 2/3/4-integer lists. */ | |
3155 | ||
00382e8b | 3156 | INLINE Lisp_Object |
3de717bd DA |
3157 | list2i (EMACS_INT x, EMACS_INT y) |
3158 | { | |
3159 | return list2 (make_number (x), make_number (y)); | |
3160 | } | |
3161 | ||
00382e8b | 3162 | INLINE Lisp_Object |
3de717bd DA |
3163 | list3i (EMACS_INT x, EMACS_INT y, EMACS_INT w) |
3164 | { | |
3165 | return list3 (make_number (x), make_number (y), make_number (w)); | |
3166 | } | |
3167 | ||
00382e8b | 3168 | INLINE Lisp_Object |
3de717bd DA |
3169 | list4i (EMACS_INT x, EMACS_INT y, EMACS_INT w, EMACS_INT h) |
3170 | { | |
3171 | return list4 (make_number (x), make_number (y), | |
3172 | make_number (w), make_number (h)); | |
3173 | } | |
3174 | ||
2cf00efc PE |
3175 | extern Lisp_Object make_uninit_bool_vector (EMACS_INT); |
3176 | extern Lisp_Object bool_vector_fill (Lisp_Object, Lisp_Object); | |
845ca893 | 3177 | extern _Noreturn void string_overflow (void); |
d311d28c | 3178 | extern Lisp_Object make_string (const char *, ptrdiff_t); |
26bccfae PE |
3179 | extern Lisp_Object make_formatted_string (char *, const char *, ...) |
3180 | ATTRIBUTE_FORMAT_PRINTF (2, 3); | |
d311d28c | 3181 | extern Lisp_Object make_unibyte_string (const char *, ptrdiff_t); |
d7ea76b4 DA |
3182 | |
3183 | /* Make unibyte string from C string when the length isn't known. */ | |
3184 | ||
00382e8b | 3185 | INLINE Lisp_Object |
d7ea76b4 DA |
3186 | build_unibyte_string (const char *str) |
3187 | { | |
3188 | return make_unibyte_string (str, strlen (str)); | |
3189 | } | |
3190 | ||
d311d28c | 3191 | extern Lisp_Object make_multibyte_string (const char *, ptrdiff_t, ptrdiff_t); |
0c90b9ee | 3192 | extern Lisp_Object make_event_array (ptrdiff_t, Lisp_Object *); |
413d18e7 EZ |
3193 | extern Lisp_Object make_uninit_string (EMACS_INT); |
3194 | extern Lisp_Object make_uninit_multibyte_string (EMACS_INT, EMACS_INT); | |
d311d28c | 3195 | extern Lisp_Object make_string_from_bytes (const char *, ptrdiff_t, ptrdiff_t); |
14162469 | 3196 | extern Lisp_Object make_specified_string (const char *, |
fce31d69 PE |
3197 | ptrdiff_t, ptrdiff_t, bool); |
3198 | extern Lisp_Object make_pure_string (const char *, ptrdiff_t, ptrdiff_t, bool); | |
2a0213a6 DA |
3199 | extern Lisp_Object make_pure_c_string (const char *, ptrdiff_t); |
3200 | ||
3201 | /* Make a string allocated in pure space, use STR as string data. */ | |
3202 | ||
00382e8b | 3203 | INLINE Lisp_Object |
2a0213a6 DA |
3204 | build_pure_c_string (const char *str) |
3205 | { | |
3206 | return make_pure_c_string (str, strlen (str)); | |
3207 | } | |
1130ecfc DA |
3208 | |
3209 | /* Make a string from the data at STR, treating it as multibyte if the | |
3210 | data warrants. */ | |
3211 | ||
00382e8b | 3212 | INLINE Lisp_Object |
1130ecfc DA |
3213 | build_string (const char *str) |
3214 | { | |
3215 | return make_string (str, strlen (str)); | |
3216 | } | |
3217 | ||
383e0970 | 3218 | extern Lisp_Object pure_cons (Lisp_Object, Lisp_Object); |
3017f87f | 3219 | extern void make_byte_code (struct Lisp_Vector *); |
7f73dc9d | 3220 | extern Lisp_Object Qchar_table_extra_slots; |
383e0970 | 3221 | extern struct Lisp_Vector *allocate_vector (EMACS_INT); |
25721f5b | 3222 | |
8b17a8b9 | 3223 | /* Make an uninitialized vector for SIZE objects. NOTE: you must |
25721f5b DA |
3224 | be sure that GC cannot happen until the vector is completely |
3225 | initialized. E.g. the following code is likely to crash: | |
3226 | ||
3227 | v = make_uninit_vector (3); | |
3228 | ASET (v, 0, obj0); | |
3229 | ASET (v, 1, Ffunction_can_gc ()); | |
3230 | ASET (v, 2, obj1); */ | |
3231 | ||
00382e8b | 3232 | INLINE Lisp_Object |
25721f5b DA |
3233 | make_uninit_vector (ptrdiff_t size) |
3234 | { | |
3235 | Lisp_Object v; | |
3236 | struct Lisp_Vector *p; | |
3237 | ||
3238 | p = allocate_vector (size); | |
3239 | XSETVECTOR (v, p); | |
3240 | return v; | |
3241 | } | |
3242 | ||
914adc42 | 3243 | extern struct Lisp_Vector *allocate_pseudovector (int, int, enum pvec_type); |
30f95089 SM |
3244 | #define ALLOCATE_PSEUDOVECTOR(typ,field,tag) \ |
3245 | ((typ*) \ | |
3246 | allocate_pseudovector \ | |
3247 | (VECSIZE (typ), PSEUDOVECSIZE (typ, field), tag)) | |
383e0970 J |
3248 | extern struct Lisp_Hash_Table *allocate_hash_table (void); |
3249 | extern struct window *allocate_window (void); | |
3250 | extern struct frame *allocate_frame (void); | |
3251 | extern struct Lisp_Process *allocate_process (void); | |
3252 | extern struct terminal *allocate_terminal (void); | |
383e0970 J |
3253 | extern Lisp_Object make_float (double); |
3254 | extern void display_malloc_warning (void); | |
1396ac86 PE |
3255 | extern Lisp_Object make_save_int_int_int (ptrdiff_t, ptrdiff_t, ptrdiff_t); |
3256 | extern Lisp_Object make_save_obj_obj_obj_obj (Lisp_Object, Lisp_Object, | |
3257 | Lisp_Object, Lisp_Object); | |
3258 | extern Lisp_Object make_save_ptr (void *); | |
3259 | extern Lisp_Object make_save_ptr_int (void *, ptrdiff_t); | |
3260 | extern Lisp_Object make_save_ptr_ptr (void *, void *); | |
3261 | extern Lisp_Object make_save_funcptr_ptr_obj (void (*) (void), void *, | |
3262 | Lisp_Object); | |
3263 | extern Lisp_Object make_save_memory (Lisp_Object *, ptrdiff_t); | |
27e498e6 | 3264 | extern void free_save_value (Lisp_Object); |
d7a7fda3 | 3265 | extern Lisp_Object build_overlay (Lisp_Object, Lisp_Object, Lisp_Object); |
383e0970 J |
3266 | extern void init_alloc_once (void); |
3267 | extern void init_alloc (void); | |
3268 | extern void syms_of_alloc (void); | |
3269 | extern struct buffer * allocate_buffer (void); | |
3270 | extern int valid_lisp_object_p (Lisp_Object); | |
8d3103b1 | 3271 | extern int relocatable_string_data_p (const char *); |
3cfe6dfd | 3272 | |
a041960a | 3273 | #ifdef REL_ALLOC |
e7032e7c | 3274 | /* Defined in ralloc.c. */ |
74fde0f4 | 3275 | extern void *r_alloc (void **, size_t) ATTRIBUTE_ALLOC_SIZE ((2)); |
a041960a | 3276 | extern void r_alloc_free (void **); |
74fde0f4 | 3277 | extern void *r_re_alloc (void **, size_t) ATTRIBUTE_ALLOC_SIZE ((2)); |
a041960a | 3278 | extern void r_alloc_reset_variable (void **, void **); |
57b81a9f | 3279 | extern void r_alloc_inhibit_buffer_relocation (int); |
a041960a PE |
3280 | #endif |
3281 | ||
e7032e7c | 3282 | /* Defined in chartab.c. */ |
383e0970 | 3283 | extern Lisp_Object copy_char_table (Lisp_Object); |
383e0970 J |
3284 | extern Lisp_Object char_table_ref_and_range (Lisp_Object, int, |
3285 | int *, int *); | |
e757f1c6 | 3286 | extern void char_table_set_range (Lisp_Object, int, int, Lisp_Object); |
383e0970 J |
3287 | extern void map_char_table (void (*) (Lisp_Object, Lisp_Object, |
3288 | Lisp_Object), | |
3289 | Lisp_Object, Lisp_Object, Lisp_Object); | |
e6cba650 DN |
3290 | extern void map_char_table_for_charset (void (*c_function) (Lisp_Object, Lisp_Object), |
3291 | Lisp_Object, Lisp_Object, | |
3292 | Lisp_Object, struct charset *, | |
3293 | unsigned, unsigned); | |
5cc7f7af | 3294 | extern Lisp_Object uniprop_table (Lisp_Object); |
383e0970 | 3295 | extern void syms_of_chartab (void); |
1842abb2 | 3296 | |
e7032e7c | 3297 | /* Defined in print.c. */ |
3cfe6dfd | 3298 | extern Lisp_Object Vprin1_to_string_buffer; |
42c8bc9b | 3299 | extern void debug_print (Lisp_Object) EXTERNALLY_VISIBLE; |
29208e82 | 3300 | extern Lisp_Object Qstandard_output; |
9453ea7b | 3301 | extern Lisp_Object Qexternal_debugging_output; |
383e0970 | 3302 | extern void temp_output_buffer_setup (const char *); |
29208e82 | 3303 | extern int print_level; |
3cfe6dfd | 3304 | extern Lisp_Object Qprint_escape_newlines; |
a8fe7202 | 3305 | extern void write_string (const char *, int); |
a8fe7202 AS |
3306 | extern void print_error_message (Lisp_Object, Lisp_Object, const char *, |
3307 | Lisp_Object); | |
526a2be7 | 3308 | extern Lisp_Object internal_with_output_to_temp_buffer |
383e0970 | 3309 | (const char *, Lisp_Object (*) (Lisp_Object), Lisp_Object); |
1915d8d6 | 3310 | #define FLOAT_TO_STRING_BUFSIZE 350 |
99027bdd | 3311 | extern int float_to_string (char *, double); |
cf4bb06d | 3312 | extern void init_print_once (void); |
383e0970 | 3313 | extern void syms_of_print (void); |
526a2be7 | 3314 | |
e7032e7c | 3315 | /* Defined in doprnt.c. */ |
c2d1e36d PE |
3316 | extern ptrdiff_t doprnt (char *, ptrdiff_t, const char *, const char *, |
3317 | va_list); | |
62f19c19 PE |
3318 | extern ptrdiff_t esprintf (char *, char const *, ...) |
3319 | ATTRIBUTE_FORMAT_PRINTF (2, 3); | |
62f19c19 PE |
3320 | extern ptrdiff_t exprintf (char **, ptrdiff_t *, char const *, ptrdiff_t, |
3321 | char const *, ...) | |
3322 | ATTRIBUTE_FORMAT_PRINTF (5, 6); | |
3323 | extern ptrdiff_t evxprintf (char **, ptrdiff_t *, char const *, ptrdiff_t, | |
3324 | char const *, va_list) | |
3325 | ATTRIBUTE_FORMAT_PRINTF (5, 0); | |
e6c3da20 | 3326 | |
ea6c7ae6 | 3327 | /* Defined in lread.c. */ |
3cfe6dfd | 3328 | extern Lisp_Object Qvariable_documentation, Qstandard_input; |
99f3388e | 3329 | extern Lisp_Object Qbackquote, Qcomma, Qcomma_at, Qcomma_dot, Qfunction; |
a411ac43 | 3330 | extern Lisp_Object Qlexical_binding; |
383e0970 | 3331 | extern Lisp_Object check_obarray (Lisp_Object); |
e8df9267 DA |
3332 | extern Lisp_Object intern_1 (const char *, ptrdiff_t); |
3333 | extern Lisp_Object intern_c_string_1 (const char *, ptrdiff_t); | |
d311d28c | 3334 | extern Lisp_Object oblookup (Lisp_Object, const char *, ptrdiff_t, ptrdiff_t); |
00382e8b | 3335 | INLINE void |
84575e67 PE |
3336 | LOADHIST_ATTACH (Lisp_Object x) |
3337 | { | |
3338 | if (initialized) | |
3339 | Vcurrent_load_list = Fcons (x, Vcurrent_load_list); | |
3340 | } | |
383e0970 | 3341 | extern int openp (Lisp_Object, Lisp_Object, Lisp_Object, |
518c40a2 | 3342 | Lisp_Object *, Lisp_Object, bool); |
7cded46f | 3343 | extern Lisp_Object string_to_number (char const *, int, bool); |
383e0970 J |
3344 | extern void map_obarray (Lisp_Object, void (*) (Lisp_Object, Lisp_Object), |
3345 | Lisp_Object); | |
a8fe7202 | 3346 | extern void dir_warning (const char *, Lisp_Object); |
383e0970 J |
3347 | extern void init_obarray (void); |
3348 | extern void init_lread (void); | |
3349 | extern void syms_of_lread (void); | |
3cfe6dfd | 3350 | |
00382e8b | 3351 | INLINE Lisp_Object |
e8df9267 DA |
3352 | intern (const char *str) |
3353 | { | |
3354 | return intern_1 (str, strlen (str)); | |
3355 | } | |
3356 | ||
00382e8b | 3357 | INLINE Lisp_Object |
e8df9267 DA |
3358 | intern_c_string (const char *str) |
3359 | { | |
3360 | return intern_c_string_1 (str, strlen (str)); | |
3361 | } | |
3362 | ||
f6d62986 | 3363 | /* Defined in eval.c. */ |
73bfe891 | 3364 | extern Lisp_Object Qexit, Qinteractive, Qcommandp, Qmacro; |
a411ac43 | 3365 | extern Lisp_Object Qinhibit_quit, Qinternal_interpreter_environment, Qclosure; |
955cbe7b | 3366 | extern Lisp_Object Qand_rest; |
3cfe6dfd | 3367 | extern Lisp_Object Vautoload_queue; |
fab88cb7 | 3368 | extern Lisp_Object Vsignaling_function; |
d1f55f16 | 3369 | extern Lisp_Object inhibit_lisp_code; |
244ed907 | 3370 | extern struct handler *handlerlist; |
adf2aa61 | 3371 | |
f1b6e5fc SM |
3372 | /* To run a normal hook, use the appropriate function from the list below. |
3373 | The calling convention: | |
3374 | ||
846d69ac | 3375 | if (!NILP (Vrun_hooks)) |
f1b6e5fc SM |
3376 | call1 (Vrun_hooks, Qmy_funny_hook); |
3377 | ||
3378 | should no longer be used. */ | |
3cfe6dfd | 3379 | extern Lisp_Object Vrun_hooks; |
383e0970 | 3380 | extern void run_hook_with_args_2 (Lisp_Object, Lisp_Object, Lisp_Object); |
f66c7cf8 | 3381 | extern Lisp_Object run_hook_with_args (ptrdiff_t nargs, Lisp_Object *args, |
f6d62986 | 3382 | Lisp_Object (*funcall) |
f66c7cf8 | 3383 | (ptrdiff_t nargs, Lisp_Object *args)); |
845ca893 PE |
3384 | extern _Noreturn void xsignal (Lisp_Object, Lisp_Object); |
3385 | extern _Noreturn void xsignal0 (Lisp_Object); | |
3386 | extern _Noreturn void xsignal1 (Lisp_Object, Lisp_Object); | |
3387 | extern _Noreturn void xsignal2 (Lisp_Object, Lisp_Object, Lisp_Object); | |
3388 | extern _Noreturn void xsignal3 (Lisp_Object, Lisp_Object, Lisp_Object, | |
3389 | Lisp_Object); | |
3390 | extern _Noreturn void signal_error (const char *, Lisp_Object); | |
defb1411 | 3391 | extern Lisp_Object eval_sub (Lisp_Object form); |
c0ff0ac2 | 3392 | extern Lisp_Object Ffuncall (ptrdiff_t nargs, Lisp_Object *args); |
383e0970 J |
3393 | extern Lisp_Object apply1 (Lisp_Object, Lisp_Object); |
3394 | extern Lisp_Object call0 (Lisp_Object); | |
3395 | extern Lisp_Object call1 (Lisp_Object, Lisp_Object); | |
3396 | extern Lisp_Object call2 (Lisp_Object, Lisp_Object, Lisp_Object); | |
3397 | extern Lisp_Object call3 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); | |
3398 | extern Lisp_Object call4 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); | |
3399 | extern Lisp_Object call5 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); | |
3400 | extern Lisp_Object call6 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); | |
3401 | extern Lisp_Object call7 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); | |
383e0970 J |
3402 | extern Lisp_Object internal_catch (Lisp_Object, Lisp_Object (*) (Lisp_Object), Lisp_Object); |
3403 | extern Lisp_Object internal_lisp_condition_case (Lisp_Object, Lisp_Object, Lisp_Object); | |
3404 | extern Lisp_Object internal_condition_case (Lisp_Object (*) (void), Lisp_Object, Lisp_Object (*) (Lisp_Object)); | |
3405 | extern Lisp_Object internal_condition_case_1 (Lisp_Object (*) (Lisp_Object), Lisp_Object, Lisp_Object, Lisp_Object (*) (Lisp_Object)); | |
3406 | extern Lisp_Object internal_condition_case_2 (Lisp_Object (*) (Lisp_Object, Lisp_Object), Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object (*) (Lisp_Object)); | |
cc92c454 SM |
3407 | extern Lisp_Object internal_condition_case_n |
3408 | (Lisp_Object (*) (ptrdiff_t, Lisp_Object *), ptrdiff_t, Lisp_Object *, | |
3409 | Lisp_Object, Lisp_Object (*) (Lisp_Object, ptrdiff_t, Lisp_Object *)); | |
383e0970 | 3410 | extern void specbind (Lisp_Object, Lisp_Object); |
5d1922cd | 3411 | extern void record_unwind_protect_1 (void (*) (Lisp_Object), Lisp_Object, bool); |
27e498e6 | 3412 | extern void record_unwind_protect (void (*) (Lisp_Object), Lisp_Object); |
5d1922cd | 3413 | extern void record_unwind_protect_ptr_1 (void (*) (void *), void *, bool); |
27e498e6 | 3414 | extern void record_unwind_protect_ptr (void (*) (void *), void *); |
5d1922cd | 3415 | extern void record_unwind_protect_int_1 (void (*) (int), int, bool); |
94fcd171 | 3416 | extern void record_unwind_protect_int (void (*) (int), int); |
5d1922cd | 3417 | extern void record_unwind_protect_void_1 (void (*) (void), bool); |
27e498e6 | 3418 | extern void record_unwind_protect_void (void (*) (void)); |
a26b12fa BT |
3419 | extern void dynwind_begin (void); |
3420 | extern void dynwind_end (void); | |
845ca893 PE |
3421 | extern _Noreturn void error (const char *, ...) ATTRIBUTE_FORMAT_PRINTF (1, 2); |
3422 | extern _Noreturn void verror (const char *, va_list) | |
3423 | ATTRIBUTE_FORMAT_PRINTF (1, 0); | |
27e498e6 | 3424 | extern void un_autoload (Lisp_Object); |
7f7e0167 | 3425 | extern Lisp_Object call_debugger (Lisp_Object arg); |
383e0970 | 3426 | extern void init_eval_once (void); |
6cd7a139 | 3427 | extern Lisp_Object safe_call (ptrdiff_t, Lisp_Object, ...); |
383e0970 | 3428 | extern Lisp_Object safe_call1 (Lisp_Object, Lisp_Object); |
58555d81 | 3429 | extern Lisp_Object safe_call2 (Lisp_Object, Lisp_Object, Lisp_Object); |
383e0970 J |
3430 | extern void init_eval (void); |
3431 | extern void syms_of_eval (void); | |
27e498e6 | 3432 | extern void unwind_body (Lisp_Object); |
2f592f95 SM |
3433 | extern void record_in_backtrace (Lisp_Object function, |
3434 | Lisp_Object *args, ptrdiff_t nargs); | |
3435 | extern void mark_specpdl (void); | |
3436 | extern void get_backtrace (Lisp_Object array); | |
3437 | Lisp_Object backtrace_top_function (void); | |
3438 | extern bool let_shadows_buffer_binding_p (struct Lisp_Symbol *symbol); | |
3439 | extern bool let_shadows_global_binding_p (Lisp_Object symbol); | |
6376ba30 BT |
3440 | extern _Noreturn SCM abort_to_prompt (SCM, SCM); |
3441 | extern SCM call_with_prompt (SCM, SCM, SCM); | |
3442 | extern SCM make_prompt_tag (void); | |
2f592f95 | 3443 | |
3cfe6dfd | 3444 | |
7abaf5cc | 3445 | /* Defined in editfns.c. */ |
e6cba650 | 3446 | extern Lisp_Object Qfield; |
383e0970 | 3447 | extern void insert1 (Lisp_Object); |
a8fe7202 | 3448 | extern Lisp_Object format2 (const char *, Lisp_Object, Lisp_Object); |
383e0970 J |
3449 | extern Lisp_Object save_excursion_save (void); |
3450 | extern Lisp_Object save_restriction_save (void); | |
27e498e6 PE |
3451 | extern void save_excursion_restore (Lisp_Object); |
3452 | extern void save_restriction_restore (Lisp_Object); | |
845ca893 | 3453 | extern _Noreturn void time_overflow (void); |
a08d4ba7 | 3454 | extern Lisp_Object make_buffer_string (ptrdiff_t, ptrdiff_t, bool); |
d311d28c | 3455 | extern Lisp_Object make_buffer_string_both (ptrdiff_t, ptrdiff_t, ptrdiff_t, |
a08d4ba7 | 3456 | ptrdiff_t, bool); |
383e0970 J |
3457 | extern void init_editfns (void); |
3458 | extern void syms_of_editfns (void); | |
a8fe7202 | 3459 | extern void set_time_zone_rule (const char *); |
3cfe6dfd | 3460 | |
7abaf5cc | 3461 | /* Defined in buffer.c. */ |
37ef52bb | 3462 | extern bool mouse_face_overlay_overlaps (Lisp_Object); |
845ca893 | 3463 | extern _Noreturn void nsberror (Lisp_Object); |
d311d28c PE |
3464 | extern void adjust_overlays_for_insert (ptrdiff_t, ptrdiff_t); |
3465 | extern void adjust_overlays_for_delete (ptrdiff_t, ptrdiff_t); | |
3466 | extern void fix_start_end_in_overlays (ptrdiff_t, ptrdiff_t); | |
37ef52bb | 3467 | extern void report_overlay_modification (Lisp_Object, Lisp_Object, bool, |
383e0970 | 3468 | Lisp_Object, Lisp_Object, Lisp_Object); |
37ef52bb | 3469 | extern bool overlay_touches_p (ptrdiff_t); |
9397e56f | 3470 | extern Lisp_Object other_buffer_safely (Lisp_Object); |
383e0970 | 3471 | extern Lisp_Object get_truename_buffer (Lisp_Object); |
383e0970 | 3472 | extern void init_buffer_once (void); |
0bbb27fc | 3473 | extern void init_buffer (int); |
383e0970 J |
3474 | extern void syms_of_buffer (void); |
3475 | extern void keys_of_buffer (void); | |
3cfe6dfd | 3476 | |
7abaf5cc | 3477 | /* Defined in marker.c. */ |
3cfe6dfd | 3478 | |
d311d28c PE |
3479 | extern ptrdiff_t marker_position (Lisp_Object); |
3480 | extern ptrdiff_t marker_byte_position (Lisp_Object); | |
383e0970 | 3481 | extern void clear_charpos_cache (struct buffer *); |
d311d28c PE |
3482 | extern ptrdiff_t buf_charpos_to_bytepos (struct buffer *, ptrdiff_t); |
3483 | extern ptrdiff_t buf_bytepos_to_charpos (struct buffer *, ptrdiff_t); | |
eeaea515 | 3484 | extern void unchain_marker (struct Lisp_Marker *marker); |
383e0970 | 3485 | extern Lisp_Object set_marker_restricted (Lisp_Object, Lisp_Object, Lisp_Object); |
d311d28c | 3486 | extern Lisp_Object set_marker_both (Lisp_Object, Lisp_Object, ptrdiff_t, ptrdiff_t); |
383e0970 | 3487 | extern Lisp_Object set_marker_restricted_both (Lisp_Object, Lisp_Object, |
eeaea515 | 3488 | ptrdiff_t, ptrdiff_t); |
657924ff | 3489 | extern Lisp_Object build_marker (struct buffer *, ptrdiff_t, ptrdiff_t); |
383e0970 | 3490 | extern void syms_of_marker (void); |
3cfe6dfd | 3491 | |
e7032e7c | 3492 | /* Defined in fileio.c. */ |
3cfe6dfd JB |
3493 | |
3494 | extern Lisp_Object Qfile_error; | |
86dfb7a8 | 3495 | extern Lisp_Object Qfile_notify_error; |
99f3388e | 3496 | extern Lisp_Object Qfile_exists_p; |
e6cba650 DN |
3497 | extern Lisp_Object Qfile_directory_p; |
3498 | extern Lisp_Object Qinsert_file_contents; | |
7684e57b | 3499 | extern Lisp_Object Qfile_name_history; |
383e0970 | 3500 | extern Lisp_Object expand_and_dir_to_file (Lisp_Object, Lisp_Object); |
94fcd171 PE |
3501 | extern Lisp_Object write_region (Lisp_Object, Lisp_Object, Lisp_Object, |
3502 | Lisp_Object, Lisp_Object, Lisp_Object, | |
3503 | Lisp_Object, int); | |
27e498e6 | 3504 | extern void close_file_unwind (int); |
5d1922cd | 3505 | extern void close_file_ptr_unwind (void *); |
f4b1eb36 | 3506 | extern void fclose_unwind (void *); |
5d1922cd | 3507 | extern void fclose_ptr_unwind (void *); |
27e498e6 | 3508 | extern void restore_point_unwind (Lisp_Object); |
a773ed9a | 3509 | extern _Noreturn void report_file_errno (const char *, Lisp_Object, int); |
845ca893 | 3510 | extern _Noreturn void report_file_error (const char *, Lisp_Object); |
7d80ea23 | 3511 | extern bool internal_delete_file (Lisp_Object); |
8654f9d7 | 3512 | extern Lisp_Object emacs_readlinkat (int, const char *); |
73dcdb9f PE |
3513 | extern bool file_directory_p (const char *); |
3514 | extern bool file_accessible_directory_p (const char *); | |
9fe43ff6 | 3515 | extern void init_fileio (void); |
383e0970 | 3516 | extern void syms_of_fileio (void); |
f75d7a91 | 3517 | extern Lisp_Object make_temp_name (Lisp_Object, bool); |
b86cfd28 | 3518 | extern Lisp_Object Qdelete_file; |
3cfe6dfd | 3519 | |
e7032e7c | 3520 | /* Defined in search.c. */ |
383e0970 | 3521 | extern void shrink_regexp_cache (void); |
383e0970 | 3522 | extern void restore_search_regs (void); |
383e0970 | 3523 | extern void record_unwind_save_match_data (void); |
dbd37a95 PE |
3524 | struct re_registers; |
3525 | extern struct re_pattern_buffer *compile_pattern (Lisp_Object, | |
3526 | struct re_registers *, | |
457882c2 | 3527 | Lisp_Object, bool, bool); |
d311d28c | 3528 | extern ptrdiff_t fast_string_match (Lisp_Object, Lisp_Object); |
d923b542 DA |
3529 | extern ptrdiff_t fast_c_string_match_ignore_case (Lisp_Object, const char *, |
3530 | ptrdiff_t); | |
d311d28c PE |
3531 | extern ptrdiff_t fast_string_match_ignore_case (Lisp_Object, Lisp_Object); |
3532 | extern ptrdiff_t fast_looking_at (Lisp_Object, ptrdiff_t, ptrdiff_t, | |
3533 | ptrdiff_t, ptrdiff_t, Lisp_Object); | |
b5426561 DA |
3534 | extern ptrdiff_t find_newline (ptrdiff_t, ptrdiff_t, ptrdiff_t, ptrdiff_t, |
3535 | ptrdiff_t, ptrdiff_t *, ptrdiff_t *, bool); | |
d2b36813 DA |
3536 | extern ptrdiff_t scan_newline (ptrdiff_t, ptrdiff_t, ptrdiff_t, ptrdiff_t, |
3537 | ptrdiff_t, bool); | |
b5426561 DA |
3538 | extern ptrdiff_t find_newline_no_quit (ptrdiff_t, ptrdiff_t, |
3539 | ptrdiff_t, ptrdiff_t *); | |
2a14a4f1 DA |
3540 | extern ptrdiff_t find_before_next_newline (ptrdiff_t, ptrdiff_t, |
3541 | ptrdiff_t, ptrdiff_t *); | |
383e0970 J |
3542 | extern void syms_of_search (void); |
3543 | extern void clear_regexp_cache (void); | |
3cfe6dfd | 3544 | |
464d5a5e | 3545 | /* Defined in minibuf.c. */ |
3cfe6dfd | 3546 | |
e6cba650 | 3547 | extern Lisp_Object Qcompletion_ignore_case; |
99f3388e | 3548 | extern Lisp_Object Vminibuffer_list; |
3cfe6dfd | 3549 | extern Lisp_Object last_minibuf_string; |
62f19c19 | 3550 | extern Lisp_Object get_minibuffer (EMACS_INT); |
383e0970 J |
3551 | extern void init_minibuf_once (void); |
3552 | extern void syms_of_minibuf (void); | |
3cfe6dfd | 3553 | |
464d5a5e | 3554 | /* Defined in callint.c. */ |
3cfe6dfd | 3555 | |
29208e82 | 3556 | extern Lisp_Object Qminus, Qplus; |
12b1389c | 3557 | extern Lisp_Object Qprogn; |
99f3388e | 3558 | extern Lisp_Object Qwhen; |
6e65b9cc | 3559 | extern Lisp_Object Qmouse_leave_buffer_hook; |
383e0970 | 3560 | extern void syms_of_callint (void); |
3cfe6dfd | 3561 | |
464d5a5e | 3562 | /* Defined in casefiddle.c. */ |
3cfe6dfd | 3563 | |
99f3388e | 3564 | extern Lisp_Object Qidentity; |
383e0970 J |
3565 | extern void syms_of_casefiddle (void); |
3566 | extern void keys_of_casefiddle (void); | |
3cfe6dfd | 3567 | |
464d5a5e | 3568 | /* Defined in casetab.c. */ |
1747fb16 | 3569 | |
383e0970 J |
3570 | extern void init_casetab_once (void); |
3571 | extern void syms_of_casetab (void); | |
1747fb16 | 3572 | |
464d5a5e | 3573 | /* Defined in keyboard.c. */ |
3cfe6dfd | 3574 | |
54cd1651 | 3575 | extern Lisp_Object echo_message_buffer; |
417750de | 3576 | extern struct kboard *echo_kboard; |
383e0970 | 3577 | extern void cancel_echoing (void); |
1425dcb6 | 3578 | extern Lisp_Object Qdisabled, QCfilter; |
73bfe891 | 3579 | extern Lisp_Object Qup, Qdown; |
464d5a5e | 3580 | extern Lisp_Object last_undo_boundary; |
9fa1de30 | 3581 | extern bool input_pending; |
383e0970 J |
3582 | extern Lisp_Object menu_bar_items (Lisp_Object); |
3583 | extern Lisp_Object tool_bar_items (Lisp_Object, int *); | |
383e0970 | 3584 | extern void discard_mouse_events (void); |
4d7e6e51 PE |
3585 | #ifdef USABLE_SIGIO |
3586 | void handle_input_available_signal (int); | |
3587 | #endif | |
58555d81 | 3588 | extern Lisp_Object pending_funcalls; |
9fa1de30 PE |
3589 | extern bool detect_input_pending (void); |
3590 | extern bool detect_input_pending_ignore_squeezables (void); | |
3591 | extern bool detect_input_pending_run_timers (bool); | |
383e0970 | 3592 | extern void safe_run_hooks (Lisp_Object); |
a8fe7202 | 3593 | extern void cmd_error_internal (Lisp_Object, const char *); |
383e0970 | 3594 | extern Lisp_Object command_loop_1 (void); |
3b158d11 | 3595 | extern Lisp_Object read_menu_command (void); |
383e0970 J |
3596 | extern Lisp_Object recursive_edit_1 (void); |
3597 | extern void record_auto_save (void); | |
4752793e | 3598 | extern void force_auto_save_soon (void); |
383e0970 J |
3599 | extern void init_keyboard (void); |
3600 | extern void syms_of_keyboard (void); | |
3601 | extern void keys_of_keyboard (void); | |
3cfe6dfd | 3602 | |
464d5a5e | 3603 | /* Defined in indent.c. */ |
d311d28c | 3604 | extern ptrdiff_t current_column (void); |
383e0970 | 3605 | extern void invalidate_current_column (void); |
578098f3 | 3606 | extern bool indented_beyond_p (ptrdiff_t, ptrdiff_t, EMACS_INT); |
383e0970 | 3607 | extern void syms_of_indent (void); |
3cfe6dfd | 3608 | |
464d5a5e | 3609 | /* Defined in frame.c. */ |
9fb0c957 | 3610 | extern Lisp_Object Qonly, Qnone; |
880e6158 | 3611 | extern void set_frame_param (struct frame *, Lisp_Object, Lisp_Object); |
383e0970 J |
3612 | extern void store_frame_param (struct frame *, Lisp_Object, Lisp_Object); |
3613 | extern void store_in_alist (Lisp_Object *, Lisp_Object, Lisp_Object); | |
3614 | extern Lisp_Object do_switch_frame (Lisp_Object, int, int, Lisp_Object); | |
3615 | extern Lisp_Object get_frame_param (struct frame *, Lisp_Object); | |
383e0970 | 3616 | extern void frames_discard_buffer (Lisp_Object); |
383e0970 | 3617 | extern void syms_of_frame (void); |
3cfe6dfd | 3618 | |
464d5a5e | 3619 | /* Defined in emacs.c. */ |
99f3388e DN |
3620 | extern char **initial_argv; |
3621 | extern int initial_argc; | |
5e617bc2 | 3622 | #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS) |
1882aa38 | 3623 | extern bool display_arg; |
89dc303e | 3624 | #endif |
17e0445b | 3625 | extern Lisp_Object decode_env_path (const char *, const char *, bool); |
2c668b9a | 3626 | extern Lisp_Object empty_unibyte_string, empty_multibyte_string; |
e6cba650 | 3627 | extern Lisp_Object Qfile_name_handler_alist; |
4d7e6e51 | 3628 | extern _Noreturn void terminate_due_to_signal (int, int); |
6c07aac2 | 3629 | extern Lisp_Object Qkill_emacs; |
aa15c6bb JB |
3630 | #ifdef WINDOWSNT |
3631 | extern Lisp_Object Vlibrary_cache; | |
3632 | #endif | |
68c45bf0 | 3633 | #if HAVE_SETLOCALE |
383e0970 J |
3634 | void fixup_locale (void); |
3635 | void synchronize_system_messages_locale (void); | |
3636 | void synchronize_system_time_locale (void); | |
68c45bf0 | 3637 | #else |
00382e8b PE |
3638 | INLINE void fixup_locale (void) {} |
3639 | INLINE void synchronize_system_messages_locale (void) {} | |
3640 | INLINE void synchronize_system_time_locale (void) {} | |
68c45bf0 | 3641 | #endif |
1882aa38 | 3642 | extern void shut_down_emacs (int, Lisp_Object); |
ff808935 | 3643 | |
1882aa38 PE |
3644 | /* True means don't do interactive redisplay and don't change tty modes. */ |
3645 | extern bool noninteractive; | |
3646 | ||
3647 | /* True means remove site-lisp directories from load-path. */ | |
3648 | extern bool no_site_lisp; | |
66b7b0fe | 3649 | |
ff808935 DN |
3650 | /* Pipe used to send exit notification to the daemon parent at |
3651 | startup. */ | |
3652 | extern int daemon_pipe[2]; | |
3653 | #define IS_DAEMON (daemon_pipe[1] != 0) | |
3654 | ||
1882aa38 PE |
3655 | /* True if handling a fatal error already. */ |
3656 | extern bool fatal_error_in_progress; | |
3657 | ||
3658 | /* True means don't do use window-system-specific display code. */ | |
3659 | extern bool inhibit_window_system; | |
3660 | /* True means that a filter or a sentinel is running. */ | |
3661 | extern bool running_asynch_code; | |
3cfe6dfd | 3662 | |
6c60eb9f | 3663 | /* Defined in process.c. */ |
89dc303e | 3664 | extern Lisp_Object QCtype, Qlocal; |
383e0970 | 3665 | extern void kill_buffer_processes (Lisp_Object); |
05d28210 PE |
3666 | extern int wait_reading_process_output (intmax_t, int, int, bool, Lisp_Object, |
3667 | struct Lisp_Process *, int); | |
f1dd8073 PE |
3668 | /* Max value for the first argument of wait_reading_process_output. */ |
3669 | #if __GNUC__ == 3 || (__GNUC__ == 4 && __GNUC_MINOR__ <= 5) | |
3670 | /* Work around a bug in GCC 3.4.2, known to be fixed in GCC 4.6.3. | |
3671 | The bug merely causes a bogus warning, but the warning is annoying. */ | |
3672 | # define WAIT_READING_MAX min (TYPE_MAXIMUM (time_t), INTMAX_MAX) | |
3673 | #else | |
3674 | # define WAIT_READING_MAX INTMAX_MAX | |
3675 | #endif | |
383e0970 J |
3676 | extern void add_keyboard_wait_descriptor (int); |
3677 | extern void delete_keyboard_wait_descriptor (int); | |
4475bec4 | 3678 | #ifdef HAVE_GPM |
383e0970 J |
3679 | extern void add_gpm_wait_descriptor (int); |
3680 | extern void delete_gpm_wait_descriptor (int); | |
4475bec4 | 3681 | #endif |
b82da769 | 3682 | extern void init_process_emacs (void); |
383e0970 J |
3683 | extern void syms_of_process (void); |
3684 | extern void setup_process_coding_systems (Lisp_Object); | |
3cfe6dfd | 3685 | |
4ebbdd67 | 3686 | /* Defined in callproc.c. */ |
6bd8c144 | 3687 | #ifndef DOS_NT |
845ca893 | 3688 | _Noreturn |
6bd8c144 | 3689 | #endif |
2f221583 | 3690 | extern int child_setup (int, int, int, char **, bool, Lisp_Object); |
383e0970 J |
3691 | extern void init_callproc_1 (void); |
3692 | extern void init_callproc (void); | |
3693 | extern void set_initial_environment (void); | |
3694 | extern void syms_of_callproc (void); | |
3cfe6dfd | 3695 | |
e7032e7c | 3696 | /* Defined in doc.c. */ |
99f3388e | 3697 | extern Lisp_Object Qfunction_documentation; |
383e0970 | 3698 | extern Lisp_Object read_doc_string (Lisp_Object); |
a08d4ba7 | 3699 | extern Lisp_Object get_doc_string (Lisp_Object, bool, bool); |
383e0970 | 3700 | extern void syms_of_doc (void); |
a08d4ba7 | 3701 | extern int read_bytecode_char (bool); |
3cfe6dfd | 3702 | |
e7032e7c | 3703 | /* Defined in bytecode.c. */ |
383e0970 | 3704 | extern void syms_of_bytecode (void); |
0ee81a0c | 3705 | extern Lisp_Object exec_byte_code (Lisp_Object, Lisp_Object, Lisp_Object, |
f66c7cf8 | 3706 | Lisp_Object, ptrdiff_t, Lisp_Object *); |
3cfe6dfd | 3707 | |
e7032e7c | 3708 | /* Defined in macros.c. */ |
383e0970 J |
3709 | extern void init_macros (void); |
3710 | extern void syms_of_macros (void); | |
3cfe6dfd | 3711 | |
e7032e7c | 3712 | /* Defined in undo.c. */ |
89dc303e | 3713 | extern Lisp_Object Qapply; |
a387611b | 3714 | extern Lisp_Object Qinhibit_read_only; |
383e0970 | 3715 | extern void truncate_undo_list (struct buffer *); |
d311d28c | 3716 | extern void record_insert (ptrdiff_t, ptrdiff_t); |
37ea8275 | 3717 | extern void record_delete (ptrdiff_t, Lisp_Object, bool); |
383e0970 | 3718 | extern void record_first_change (void); |
d311d28c PE |
3719 | extern void record_change (ptrdiff_t, ptrdiff_t); |
3720 | extern void record_property_change (ptrdiff_t, ptrdiff_t, | |
c8a66ab8 | 3721 | Lisp_Object, Lisp_Object, |
383e0970 J |
3722 | Lisp_Object); |
3723 | extern void syms_of_undo (void); | |
e7032e7c | 3724 | /* Defined in textprop.c. */ |
73bfe891 | 3725 | extern Lisp_Object Qmouse_face; |
c2d8811c | 3726 | extern Lisp_Object Qinsert_in_front_hooks, Qinsert_behind_hooks; |
e6cba650 DN |
3727 | extern Lisp_Object Qminibuffer_prompt; |
3728 | ||
383e0970 | 3729 | extern void report_interval_modification (Lisp_Object, Lisp_Object); |
8537f1cb | 3730 | |
e7032e7c | 3731 | /* Defined in menu.c. */ |
383e0970 | 3732 | extern void syms_of_menu (void); |
febcacdd | 3733 | |
e7032e7c | 3734 | /* Defined in xmenu.c. */ |
383e0970 | 3735 | extern void syms_of_xmenu (void); |
526a2be7 | 3736 | |
e7032e7c | 3737 | /* Defined in termchar.h. */ |
28d7d09f KL |
3738 | struct tty_display_info; |
3739 | ||
e7032e7c | 3740 | /* Defined in termhooks.h. */ |
6ed8eeff | 3741 | struct terminal; |
28d440ab | 3742 | |
e7032e7c | 3743 | /* Defined in sysdep.c. */ |
2412f586 | 3744 | #ifndef HAVE_GET_CURRENT_DIR_NAME |
383e0970 | 3745 | extern char *get_current_dir_name (void); |
2b94e598 | 3746 | #endif |
383e0970 | 3747 | extern void stuff_char (char c); |
322aea6d | 3748 | extern void init_foreground_group (void); |
383e0970 J |
3749 | extern void sys_subshell (void); |
3750 | extern void sys_suspend (void); | |
3751 | extern void discard_tty_input (void); | |
3752 | extern void init_sys_modes (struct tty_display_info *); | |
3753 | extern void reset_sys_modes (struct tty_display_info *); | |
3754 | extern void init_all_sys_modes (void); | |
3755 | extern void reset_all_sys_modes (void); | |
383e0970 J |
3756 | extern void child_setup_tty (int); |
3757 | extern void setup_pty (int); | |
3758 | extern int set_window_size (int, int, int); | |
ede49d71 | 3759 | extern EMACS_INT get_random (void); |
0e23ef9d PE |
3760 | extern void seed_random (void *, ptrdiff_t); |
3761 | extern void init_random (void); | |
cf29dd84 | 3762 | extern void emacs_backtrace (int); |
1088b922 | 3763 | extern _Noreturn void emacs_abort (void) NO_INLINE; |
383e0970 | 3764 | extern int emacs_open (const char *, int, int); |
c7ddc792 | 3765 | extern int emacs_pipe (int[2]); |
383e0970 | 3766 | extern int emacs_close (int); |
223752d7 PE |
3767 | extern ptrdiff_t emacs_read (int, void *, ptrdiff_t); |
3768 | extern ptrdiff_t emacs_write (int, void const *, ptrdiff_t); | |
3769 | extern ptrdiff_t emacs_write_sig (int, void const *, ptrdiff_t); | |
4ebbdd67 | 3770 | extern void emacs_perror (char const *); |
526a2be7 | 3771 | |
383e0970 J |
3772 | extern void unlock_all_files (void); |
3773 | extern void lock_file (Lisp_Object); | |
3774 | extern void unlock_file (Lisp_Object); | |
3775 | extern void unlock_buffer (struct buffer *); | |
3776 | extern void syms_of_filelock (void); | |
15b0ced5 | 3777 | |
e7032e7c | 3778 | /* Defined in sound.c. */ |
383e0970 | 3779 | extern void syms_of_sound (void); |
46abf440 | 3780 | |
e7032e7c | 3781 | /* Defined in category.c. */ |
383e0970 J |
3782 | extern void init_category_once (void); |
3783 | extern Lisp_Object char_category_set (int); | |
3784 | extern void syms_of_category (void); | |
46abf440 | 3785 | |
e7032e7c | 3786 | /* Defined in ccl.c. */ |
383e0970 | 3787 | extern void syms_of_ccl (void); |
46abf440 | 3788 | |
e7032e7c | 3789 | /* Defined in dired.c. */ |
383e0970 J |
3790 | extern void syms_of_dired (void); |
3791 | extern Lisp_Object directory_files_internal (Lisp_Object, Lisp_Object, | |
3792 | Lisp_Object, Lisp_Object, | |
86ec63ba | 3793 | bool, Lisp_Object); |
46abf440 | 3794 | |
e7032e7c | 3795 | /* Defined in term.c. */ |
e6cba650 | 3796 | extern int *char_ins_del_vector; |
383e0970 | 3797 | extern void syms_of_term (void); |
845ca893 PE |
3798 | extern _Noreturn void fatal (const char *msgid, ...) |
3799 | ATTRIBUTE_FORMAT_PRINTF (1, 2); | |
46abf440 | 3800 | |
e7032e7c | 3801 | /* Defined in terminal.c. */ |
383e0970 | 3802 | extern void syms_of_terminal (void); |
ed8dad6b | 3803 | |
e7032e7c | 3804 | /* Defined in font.c. */ |
383e0970 J |
3805 | extern void syms_of_font (void); |
3806 | extern void init_font (void); | |
b86cfd28 | 3807 | |
4f48f1ab | 3808 | #ifdef HAVE_WINDOW_SYSTEM |
e7032e7c | 3809 | /* Defined in fontset.c. */ |
383e0970 | 3810 | extern void syms_of_fontset (void); |
4f48f1ab | 3811 | |
e7032e7c | 3812 | /* Defined in xfns.c, w32fns.c, or macfns.c. */ |
99f3388e | 3813 | extern Lisp_Object Qfont_param; |
46abf440 AS |
3814 | #endif |
3815 | ||
c9628c79 MA |
3816 | /* Defined in gfilenotify.c */ |
3817 | #ifdef HAVE_GFILENOTIFY | |
90db8702 | 3818 | extern void globals_of_gfilenotify (void); |
c9628c79 | 3819 | extern void syms_of_gfilenotify (void); |
477f1e50 EZ |
3820 | #endif |
3821 | ||
81606b10 RS |
3822 | /* Defined in inotify.c */ |
3823 | #ifdef HAVE_INOTIFY | |
3824 | extern void syms_of_inotify (void); | |
3825 | #endif | |
3826 | ||
c9628c79 MA |
3827 | #ifdef HAVE_W32NOTIFY |
3828 | /* Defined on w32notify.c. */ | |
3829 | extern void syms_of_w32notify (void); | |
3830 | #endif | |
3831 | ||
e7032e7c | 3832 | /* Defined in xfaces.c. */ |
73bfe891 PE |
3833 | extern Lisp_Object Qdefault, Qfringe; |
3834 | extern Lisp_Object Qscroll_bar, Qcursor; | |
955cbe7b | 3835 | extern Lisp_Object Qmode_line_inactive; |
e6cba650 | 3836 | extern Lisp_Object Qface; |
89dc303e | 3837 | extern Lisp_Object Qnormal; |
0e9c8657 JB |
3838 | extern Lisp_Object QCfamily, QCweight, QCslant; |
3839 | extern Lisp_Object QCheight, QCname, QCwidth, QCforeground, QCbackground; | |
a411ac43 PE |
3840 | extern Lisp_Object Qextra_light, Qlight, Qsemi_light, Qsemi_bold; |
3841 | extern Lisp_Object Qbold, Qextra_bold, Qultra_bold; | |
3842 | extern Lisp_Object Qoblique, Qitalic; | |
99f3388e | 3843 | extern Lisp_Object Vface_alternative_font_family_alist; |
99f3388e | 3844 | extern Lisp_Object Vface_alternative_font_registry_alist; |
383e0970 | 3845 | extern void syms_of_xfaces (void); |
46abf440 AS |
3846 | |
3847 | #ifdef HAVE_X_WINDOWS | |
e7032e7c | 3848 | /* Defined in xfns.c. */ |
383e0970 | 3849 | extern void syms_of_xfns (void); |
46abf440 | 3850 | |
e7032e7c | 3851 | /* Defined in xsmfns.c. */ |
383e0970 | 3852 | extern void syms_of_xsmfns (void); |
e02207d4 | 3853 | |
e7032e7c | 3854 | /* Defined in xselect.c. */ |
383e0970 | 3855 | extern void syms_of_xselect (void); |
46abf440 | 3856 | |
e7032e7c | 3857 | /* Defined in xterm.c. */ |
383e0970 | 3858 | extern void syms_of_xterm (void); |
4f48f1ab | 3859 | #endif /* HAVE_X_WINDOWS */ |
4baa6f88 | 3860 | |
7af07b96 | 3861 | #ifdef HAVE_WINDOW_SYSTEM |
e7032e7c | 3862 | /* Defined in xterm.c, nsterm.m, w32term.c. */ |
7af07b96 AS |
3863 | extern char *x_get_keysym_name (int); |
3864 | #endif /* HAVE_WINDOW_SYSTEM */ | |
3865 | ||
381408e2 | 3866 | #ifdef HAVE_LIBXML2 |
e7032e7c | 3867 | /* Defined in xml.c. */ |
381408e2 | 3868 | extern void syms_of_xml (void); |
9078ead6 | 3869 | extern void xml_cleanup_parser (void); |
381408e2 LMI |
3870 | #endif |
3871 | ||
313546eb LMI |
3872 | #ifdef HAVE_ZLIB |
3873 | /* Defined in decompress.c. */ | |
3874 | extern void syms_of_decompress (void); | |
3875 | #endif | |
3876 | ||
b86cfd28 | 3877 | #ifdef HAVE_DBUS |
e7032e7c | 3878 | /* Defined in dbusbind.c. */ |
383e0970 | 3879 | void syms_of_dbusbind (void); |
b86cfd28 | 3880 | #endif |
36e053eb | 3881 | |
ad942b63 SM |
3882 | |
3883 | /* Defined in profiler.c. */ | |
6521894d | 3884 | extern bool profiler_memory_running; |
c2d7786e | 3885 | extern void malloc_probe (size_t); |
c2d7786e TM |
3886 | extern void syms_of_profiler (void); |
3887 | ||
ad942b63 | 3888 | |
36e053eb | 3889 | #ifdef DOS_NT |
e7032e7c | 3890 | /* Defined in msdos.c, w32.c. */ |
36e053eb DN |
3891 | extern char *emacs_root_dir (void); |
3892 | #endif /* DOS_NT */ | |
3cfe6dfd | 3893 | |
9fa1de30 PE |
3894 | /* True means ^G can quit instantly. */ |
3895 | extern bool immediate_quit; | |
3cfe6dfd | 3896 | |
74fde0f4 PE |
3897 | extern void *xmalloc (size_t) ATTRIBUTE_MALLOC_SIZE ((1)); |
3898 | extern void *xzalloc (size_t) ATTRIBUTE_MALLOC_SIZE ((1)); | |
3899 | extern void *xrealloc (void *, size_t) ATTRIBUTE_ALLOC_SIZE ((2)); | |
261cb4bb | 3900 | extern void xfree (void *); |
f11db2f4 | 3901 | extern void *xmalloc_uncollectable (size_t) ATTRIBUTE_MALLOC_SIZE ((1)); |
0a38955b | 3902 | extern void *xmalloc_unsafe (size_t) ATTRIBUTE_MALLOC_SIZE ((1)); |
74fde0f4 PE |
3903 | extern void *xnmalloc (ptrdiff_t, ptrdiff_t) ATTRIBUTE_MALLOC_SIZE ((1,2)); |
3904 | extern void *xnrealloc (void *, ptrdiff_t, ptrdiff_t) | |
3905 | ATTRIBUTE_ALLOC_SIZE ((2,3)); | |
0065d054 | 3906 | extern void *xpalloc (void *, ptrdiff_t *, ptrdiff_t, ptrdiff_t, ptrdiff_t); |
143439dd RT |
3907 | extern void *xmalloc_atomic (size_t) ATTRIBUTE_MALLOC_SIZE ((1)); |
3908 | extern void *xzalloc_atomic (size_t) ATTRIBUTE_MALLOC_SIZE ((1)); | |
3909 | extern void *xmalloc_atomic_unsafe (size_t) ATTRIBUTE_MALLOC_SIZE ((1)); | |
3910 | extern void *xnmalloc_atomic (ptrdiff_t, ptrdiff_t) ATTRIBUTE_MALLOC_SIZE ((1,2)); | |
074b6efe | 3911 | |
74fde0f4 PE |
3912 | extern char *xstrdup (const char *) ATTRIBUTE_MALLOC; |
3913 | extern char *xlispstrdup (Lisp_Object) ATTRIBUTE_MALLOC; | |
8268febf | 3914 | extern void dupstring (char **, char const *); |
5745a7df | 3915 | extern void xputenv (const char *); |
3cfe6dfd | 3916 | |
a8fe7202 | 3917 | extern char *egetenv (const char *); |
e98227af | 3918 | |
5b71542d DA |
3919 | /* Copy Lisp string to temporary (allocated on stack) C string. */ |
3920 | ||
3921 | #define xlispstrdupa(string) \ | |
3922 | memcpy (alloca (SBYTES (string) + 1), \ | |
3923 | SSDATA (string), SBYTES (string) + 1) | |
3924 | ||
5d6be39f | 3925 | /* Set up the name of the machine we're running on. */ |
383e0970 | 3926 | extern void init_system_name (void); |
881a5a80 | 3927 | |
d7a0a7c9 PE |
3928 | /* Return the absolute value of X. X should be a signed integer |
3929 | expression without side effects, and X's absolute value should not | |
3930 | exceed the maximum for its promoted type. This is called 'eabs' | |
3931 | because 'abs' is reserved by the C standard. */ | |
555b10b0 | 3932 | #define eabs(x) ((x) < 0 ? -(x) : (x)) |
096e8667 | 3933 | |
53ede3f4 GM |
3934 | /* Return a fixnum or float, depending on whether VAL fits in a Lisp |
3935 | fixnum. */ | |
3936 | ||
3937 | #define make_fixnum_or_float(val) \ | |
cbeff735 | 3938 | (FIXNUM_OVERFLOW_P (val) ? make_float (val) : make_number (val)) |
6b61353c | 3939 | |
79518a8d KS |
3940 | /* SAFE_ALLOCA normally allocates memory on the stack, but if size is |
3941 | larger than MAX_ALLOCA, use xmalloc to avoid overflowing the stack. */ | |
3942 | ||
e7032e7c | 3943 | enum MAX_ALLOCA { MAX_ALLOCA = 16 * 1024 }; |
79518a8d | 3944 | |
e96be6dd | 3945 | #define USE_SAFE_ALLOCA ((void) 0) |
79518a8d | 3946 | |
a9e6bacc KS |
3947 | /* SAFE_ALLOCA allocates a simple buffer. */ |
3948 | ||
98c6f1e3 PE |
3949 | #define SAFE_ALLOCA(size) ((size) < MAX_ALLOCA \ |
3950 | ? alloca (size) \ | |
e96be6dd | 3951 | : xmalloc (size)) |
79518a8d | 3952 | |
0065d054 PE |
3953 | /* SAFE_NALLOCA sets BUF to a newly allocated array of MULTIPLIER * |
3954 | NITEMS items, each of the same type as *BUF. MULTIPLIER must | |
3955 | positive. The code is tuned for MULTIPLIER being a constant. */ | |
3956 | ||
468afbac DA |
3957 | #define SAFE_NALLOCA(buf, multiplier, nitems) \ |
3958 | do { \ | |
3959 | if ((nitems) <= MAX_ALLOCA / sizeof *(buf) / (multiplier)) \ | |
3960 | (buf) = alloca (sizeof *(buf) * (multiplier) * (nitems)); \ | |
3961 | else \ | |
e96be6dd BT |
3962 | (buf) = xnmalloc (nitems, sizeof *(buf) * (multiplier)); \ |
3963 | } while (0) | |
0065d054 | 3964 | |
a9e6bacc KS |
3965 | /* SAFE_FREE frees xmalloced memory and enables GC as needed. */ |
3966 | ||
e96be6dd | 3967 | #define SAFE_FREE() ((void) 0) |
79518a8d | 3968 | |
5f5d6c62 KS |
3969 | /* SAFE_ALLOCA_LISP allocates an array of Lisp_Objects. */ |
3970 | ||
663e2b3f DA |
3971 | #define SAFE_ALLOCA_LISP(buf, nelt) \ |
3972 | do { \ | |
3973 | if ((nelt) < MAX_ALLOCA / word_size) \ | |
96c06863 | 3974 | (buf) = alloca ((nelt) * word_size); \ |
663e2b3f | 3975 | else if ((nelt) < min (PTRDIFF_MAX, SIZE_MAX) / word_size) \ |
e96be6dd | 3976 | buf = xmalloc ((nelt) * word_size); \ |
663e2b3f DA |
3977 | else \ |
3978 | memory_full (SIZE_MAX); \ | |
96c06863 | 3979 | } while (false) |
5f5d6c62 | 3980 | |
105324ce SM |
3981 | /* Loop over all tails of a list, checking for cycles. |
3982 | FIXME: Make tortoise and n internal declarations. | |
3983 | FIXME: Unroll the loop body so we don't need `n'. */ | |
3984 | #define FOR_EACH_TAIL(hare, list, tortoise, n) \ | |
96c06863 | 3985 | for ((tortoise) = (hare) = (list), (n) = true; \ |
105324ce | 3986 | CONSP (hare); \ |
96c06863 PE |
3987 | (hare = XCDR (hare), (n) = !(n), \ |
3988 | ((n) \ | |
3989 | ? (EQ (hare, tortoise) \ | |
3990 | ? xsignal1 (Qcircular_list, list) \ | |
3991 | : (void) 0) \ | |
105324ce SM |
3992 | /* Move tortoise before the next iteration, in case */ \ |
3993 | /* the next iteration does an Fsetcdr. */ \ | |
96c06863 | 3994 | : (void) ((tortoise) = XCDR (tortoise))))) |
105324ce | 3995 | |
d5a1acfa DA |
3996 | /* Do a `for' loop over alist values. */ |
3997 | ||
3998 | #define FOR_EACH_ALIST_VALUE(head_var, list_var, value_var) \ | |
96c06863 PE |
3999 | for ((list_var) = (head_var); \ |
4000 | (CONSP (list_var) && ((value_var) = XCDR (XCAR (list_var)), true)); \ | |
4001 | (list_var) = XCDR (list_var)) | |
79518a8d | 4002 | |
dac616ff DA |
4003 | /* Check whether it's time for GC, and run it if so. */ |
4004 | ||
00382e8b | 4005 | INLINE void |
dac616ff DA |
4006 | maybe_gc (void) |
4007 | { | |
b782773b | 4008 | return; |
dac616ff DA |
4009 | } |
4010 | ||
00382e8b | 4011 | INLINE bool |
e1f29348 BR |
4012 | functionp (Lisp_Object object) |
4013 | { | |
4014 | if (SYMBOLP (object) && !NILP (Ffboundp (object))) | |
4015 | { | |
4016 | object = Findirect_function (object, Qt); | |
4017 | ||
4018 | if (CONSP (object) && EQ (XCAR (object), Qautoload)) | |
4019 | { | |
4020 | /* Autoloaded symbols are functions, except if they load | |
4021 | macros or keymaps. */ | |
4022 | int i; | |
4023 | for (i = 0; i < 4 && CONSP (object); i++) | |
4024 | object = XCDR (object); | |
4025 | ||
4026 | return ! (CONSP (object) && !NILP (XCAR (object))); | |
4027 | } | |
4028 | } | |
4029 | ||
4030 | if (SUBRP (object)) | |
4031 | return XSUBR (object)->max_args != UNEVALLED; | |
4032 | else if (COMPILEDP (object)) | |
96c06863 | 4033 | return true; |
e1f29348 BR |
4034 | else if (CONSP (object)) |
4035 | { | |
4036 | Lisp_Object car = XCAR (object); | |
4037 | return EQ (car, Qlambda) || EQ (car, Qclosure); | |
4038 | } | |
4039 | else | |
96c06863 | 4040 | return false; |
e1f29348 BR |
4041 | } |
4042 | ||
f162bcc3 | 4043 | INLINE_HEADER_END |
6b61353c | 4044 | #endif /* EMACS_LISP_H */ |