Commit | Line | Data |
---|---|---|
3cfe6dfd | 1 | /* Fundamental definitions for GNU Emacs Lisp interpreter. |
acaf905b | 2 | Copyright (C) 1985-1987, 1993-1995, 1997-2012 |
8cabe764 | 3 | Free Software Foundation, Inc. |
3cfe6dfd JB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
b9b1cc14 | 7 | GNU Emacs is free software: you can redistribute it and/or modify |
3cfe6dfd | 8 | it under the terms of the GNU General Public License as published by |
b9b1cc14 GM |
9 | the Free Software Foundation, either version 3 of the License, or |
10 | (at your option) any later version. | |
3cfe6dfd JB |
11 | |
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
b9b1cc14 | 18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
3cfe6dfd | 19 | |
6b61353c KH |
20 | #ifndef EMACS_LISP_H |
21 | #define EMACS_LISP_H | |
22 | ||
6a8033e1 | 23 | #include <stdarg.h> |
89887d67 | 24 | #include <stddef.h> |
8ac068ac | 25 | #include <inttypes.h> |
dd3482fe | 26 | #include <limits.h> |
6a8033e1 | 27 | |
be44ca6c PE |
28 | #include <intprops.h> |
29 | ||
7b3a82d7 DN |
30 | /* Use the configure flag --enable-checking[=LIST] to enable various |
31 | types of run time checks for Lisp objects. */ | |
35f464a7 | 32 | |
cdf61d83 | 33 | #ifdef GC_CHECK_CONS_LIST |
e5aab7e7 PE |
34 | extern void check_cons_list (void); |
35 | #define CHECK_CONS_LIST() check_cons_list () | |
cdf61d83 | 36 | #else |
e5aab7e7 | 37 | #define CHECK_CONS_LIST() ((void) 0) |
cdf61d83 | 38 | #endif |
3cfe6dfd | 39 | |
122b0c86 PE |
40 | /* Temporarily disable wider-than-pointer integers until they're tested more. |
41 | Build with CFLAGS='-DWIDE_EMACS_INT' to try them out. */ | |
42 | /* #undef WIDE_EMACS_INT */ | |
43 | ||
34374650 PE |
44 | /* EMACS_INT - signed integer wide enough to hold an Emacs value |
45 | EMACS_INT_MAX - maximum value of EMACS_INT; can be used in #if | |
46 | pI - printf length modifier for EMACS_INT | |
47 | EMACS_UINT - unsigned variant of EMACS_INT */ | |
68c45bf0 | 48 | #ifndef EMACS_INT |
34374650 | 49 | # if LONG_MAX < LLONG_MAX && defined WIDE_EMACS_INT |
47be4ab5 | 50 | # define EMACS_INT long long |
34374650 | 51 | # define EMACS_INT_MAX LLONG_MAX |
47be4ab5 | 52 | # define pI "ll" |
34374650 | 53 | # elif INT_MAX < LONG_MAX |
47be4ab5 | 54 | # define EMACS_INT long |
34374650 | 55 | # define EMACS_INT_MAX LONG_MAX |
47be4ab5 PE |
56 | # define pI "l" |
57 | # else | |
58 | # define EMACS_INT int | |
34374650 | 59 | # define EMACS_INT_MAX INT_MAX |
47be4ab5 PE |
60 | # define pI "" |
61 | # endif | |
68c45bf0 | 62 | #endif |
34374650 PE |
63 | #define EMACS_UINT unsigned EMACS_INT |
64 | ||
65 | /* Number of bits in some machine integer types. */ | |
66 | enum | |
67 | { | |
68 | BITS_PER_CHAR = CHAR_BIT, | |
69 | BITS_PER_SHORT = CHAR_BIT * sizeof (short), | |
70 | BITS_PER_INT = CHAR_BIT * sizeof (int), | |
71 | BITS_PER_LONG = CHAR_BIT * sizeof (long int), | |
72 | BITS_PER_EMACS_INT = CHAR_BIT * sizeof (EMACS_INT) | |
73 | }; | |
ce99fd65 | 74 | |
a81d11a3 PE |
75 | /* printmax_t and uprintmax_t are types for printing large integers. |
76 | These are the widest integers that are supported for printing. | |
77 | pMd etc. are conversions for printing them. | |
78 | On C99 hosts, there's no problem, as even the widest integers work. | |
79 | Fall back on EMACS_INT on pre-C99 hosts. */ | |
80 | #ifdef PRIdMAX | |
81 | typedef intmax_t printmax_t; | |
82 | typedef uintmax_t uprintmax_t; | |
83 | # define pMd PRIdMAX | |
84 | # define pMu PRIuMAX | |
85 | #else | |
86 | typedef EMACS_INT printmax_t; | |
87 | typedef EMACS_UINT uprintmax_t; | |
88 | # define pMd pI"d" | |
89 | # define pMu pI"u" | |
90 | #endif | |
91 | ||
9c4c5f81 PE |
92 | /* Use pD to format ptrdiff_t values, which suffice for indexes into |
93 | buffers and strings. Emacs never allocates objects larger than | |
94 | PTRDIFF_MAX bytes, as they cause problems with pointer subtraction. | |
95 | In C99, pD can always be "t"; configure it here for the sake of | |
96 | pre-C99 libraries such as glibc 2.0 and Solaris 8. */ | |
97 | #if PTRDIFF_MAX == INT_MAX | |
98 | # define pD "" | |
99 | #elif PTRDIFF_MAX == LONG_MAX | |
100 | # define pD "l" | |
101 | #elif PTRDIFF_MAX == LLONG_MAX | |
102 | # define pD "ll" | |
103 | #else | |
104 | # define pD "t" | |
105 | #endif | |
106 | ||
e0b8c689 | 107 | /* Extra internal type checking? */ |
c6129d7e KR |
108 | |
109 | #ifdef ENABLE_CHECKING | |
110 | ||
244ed907 PE |
111 | extern void die (const char *, const char *, int) NO_RETURN; |
112 | ||
383b707e KR |
113 | /* The suppress_checking variable is initialized to 0 in alloc.c. Set |
114 | it to 1 using a debugger to temporarily disable aborting on | |
115 | detected internal inconsistencies or error conditions. | |
116 | ||
117 | Testing suppress_checking after the supplied condition ensures that | |
118 | the side effects produced by CHECK will be consistent, independent | |
119 | of whether ENABLE_CHECKING is defined, or whether the checks are | |
120 | suppressed at run time. | |
121 | ||
122 | In some cases, a good compiler may be able to optimize away the | |
123 | CHECK macro altogether, e.g., if XSTRING (x) uses CHECK to test | |
124 | STRINGP (x), but a particular use of XSTRING is invoked only after | |
125 | testing that STRINGP (x) is true, making the test redundant. */ | |
126 | ||
244ed907 PE |
127 | extern int suppress_checking EXTERNALLY_VISIBLE; |
128 | ||
6cbe2e28 | 129 | #define CHECK(check,msg) (((check) || suppress_checking \ |
7eb9e30d | 130 | ? (void) 0 \ |
6cbe2e28 | 131 | : die ((msg), __FILE__, __LINE__)), \ |
c6129d7e | 132 | 0) |
e0b8c689 | 133 | #else |
c6129d7e | 134 | |
e0b8c689 KR |
135 | /* Produce same side effects and result, but don't complain. */ |
136 | #define CHECK(check,msg) ((check),0) | |
c6129d7e | 137 | |
e0b8c689 | 138 | #endif |
c6129d7e | 139 | |
e0b8c689 KR |
140 | /* Define an Emacs version of "assert", since some system ones are |
141 | flaky. */ | |
3694b4ab | 142 | #ifndef ENABLE_CHECKING |
8ef4622d | 143 | #define eassert(X) ((void) (0 && (X))) /* Check that X compiles. */ |
3694b4ab | 144 | #else /* ENABLE_CHECKING */ |
e0b8c689 | 145 | #if defined (__GNUC__) && __GNUC__ >= 2 && defined (__STDC__) |
5e617bc2 | 146 | #define eassert(cond) CHECK (cond, "assertion failed: " #cond) |
e0b8c689 | 147 | #else |
5e617bc2 | 148 | #define eassert(cond) CHECK (cond, "assertion failed") |
e0b8c689 | 149 | #endif |
3694b4ab | 150 | #endif /* ENABLE_CHECKING */ |
b9466edb | 151 | \f |
d9170db5 DN |
152 | /* Use the configure flag --enable-use-lisp-union-type to make |
153 | Lisp_Object use a union type instead of the default int. The flag | |
154 | causes USE_LISP_UNION_TYPE to be defined. */ | |
b86cfd28 | 155 | |
b9466edb SM |
156 | /***** Select the tagging scheme. *****/ |
157 | /* There are basically two options that control the tagging scheme: | |
b86cfd28 EZ |
158 | - USE_LISP_UNION_TYPE says that Lisp_Object should be a union instead |
159 | of an integer. | |
b9466edb SM |
160 | - USE_LSB_TAG means that we can assume the least 3 bits of pointers are |
161 | always 0, and we can thus use them to hold tag bits, without | |
162 | restricting our addressing space. | |
163 | ||
164 | If USE_LSB_TAG is not set, then we use the top 3 bits for tagging, thus | |
165 | restricting our possible address range. Currently USE_LSB_TAG is not | |
166 | allowed together with a union. This is not due to any fundamental | |
167 | technical (or political ;-) problem: nobody wrote the code to do it yet. | |
168 | ||
169 | USE_LSB_TAG not only requires the least 3 bits of pointers returned by | |
170 | malloc to be 0 but also needs to be able to impose a mult-of-8 alignment | |
171 | on the few static Lisp_Objects used: all the defsubr as well | |
172 | as the two special buffers buffer_defaults and buffer_local_symbols. */ | |
173 | ||
174 | /* First, try and define DECL_ALIGN(type,var) which declares a static | |
175 | variable VAR of type TYPE with the added requirement that it be | |
9aba6043 | 176 | TYPEBITS-aligned. */ |
8c9afb46 | 177 | |
8c9afb46 | 178 | #define GCTYPEBITS 3 |
310f5bd4 | 179 | #define VALBITS (BITS_PER_EMACS_INT - GCTYPEBITS) |
34374650 PE |
180 | |
181 | /* The maximum value that can be stored in a EMACS_INT, assuming all | |
182 | bits other than the type bits contribute to a nonnegative signed value. | |
183 | This can be used in #if, e.g., '#if VAL_MAX < UINTPTR_MAX' below. */ | |
184 | #define VAL_MAX (EMACS_INT_MAX >> (GCTYPEBITS - 1)) | |
310f5bd4 | 185 | |
b9466edb SM |
186 | #ifndef NO_DECL_ALIGN |
187 | # ifndef DECL_ALIGN | |
7cae64b4 | 188 | # if HAVE_ATTRIBUTE_ALIGNED |
b9466edb SM |
189 | # define DECL_ALIGN(type, var) \ |
190 | type __attribute__ ((__aligned__ (1 << GCTYPEBITS))) var | |
a6fc3b5c | 191 | # elif defined(_MSC_VER) |
8c9afb46 EZ |
192 | # define ALIGN_GCTYPEBITS 8 |
193 | # if (1 << GCTYPEBITS) != ALIGN_GCTYPEBITS | |
194 | # error ALIGN_GCTYPEBITS is wrong! | |
195 | # endif | |
a6fc3b5c | 196 | # define DECL_ALIGN(type, var) \ |
8c9afb46 | 197 | type __declspec(align(ALIGN_GCTYPEBITS)) var |
7cae64b4 PE |
198 | # else |
199 | /* What directives do other compilers use? */ | |
b9466edb SM |
200 | # endif |
201 | # endif | |
202 | #endif | |
203 | ||
204 | /* Let's USE_LSB_TAG on systems where we know malloc returns mult-of-8. */ | |
7cae64b4 PE |
205 | #if (defined GNU_MALLOC || defined DOUG_LEA_MALLOC || defined __GLIBC__ \ |
206 | || defined DARWIN_OS || defined __sun) | |
b9466edb SM |
207 | /* We also need to be able to specify mult-of-8 alignment on static vars. */ |
208 | # if defined DECL_ALIGN | |
34374650 | 209 | /* On hosts where pointers-as-ints do not exceed VAL_MAX, |
0edbf0b6 | 210 | USE_LSB_TAG is: |
27f3c637 PE |
211 | a. unnecessary, because the top bits of an EMACS_INT are unused, and |
212 | b. slower, because it typically requires extra masking. | |
0edbf0b6 | 213 | So, define USE_LSB_TAG only on hosts where it might be useful. */ |
34374650 | 214 | # if VAL_MAX < UINTPTR_MAX |
310f5bd4 PE |
215 | # define USE_LSB_TAG |
216 | # endif | |
b9466edb SM |
217 | # endif |
218 | #endif | |
219 | ||
220 | /* If we cannot use 8-byte alignment, make DECL_ALIGN a no-op. */ | |
221 | #ifndef DECL_ALIGN | |
222 | # ifdef USE_LSB_TAG | |
223 | # error "USE_LSB_TAG used without defining DECL_ALIGN" | |
224 | # endif | |
225 | # define DECL_ALIGN(type, var) type var | |
226 | #endif | |
227 | ||
e0b8c689 | 228 | |
99a3d506 | 229 | /* Define the fundamental Lisp data structures. */ |
3cfe6dfd | 230 | |
2de9f71c SM |
231 | /* If USE_2_TAGBITS_FOR_INTS is defined, then Lisp integers use |
232 | 2 tags, to give them one extra bit, thus extending their range from | |
233 | e.g -2^28..2^28-1 to -2^29..2^29-1. */ | |
234 | #define USE_2_TAGS_FOR_INTS | |
235 | ||
236 | /* Making it work for the union case is too much trouble. */ | |
237 | #ifdef USE_LISP_UNION_TYPE | |
238 | # undef USE_2_TAGS_FOR_INTS | |
239 | #endif | |
240 | ||
99a3d506 | 241 | /* This is the set of Lisp data types. */ |
3cfe6dfd | 242 | |
2de9f71c SM |
243 | #if !defined USE_2_TAGS_FOR_INTS |
244 | # define LISP_INT_TAG Lisp_Int | |
245 | # define case_Lisp_Int case Lisp_Int | |
246 | # define LISP_STRING_TAG 4 | |
247 | # define LISP_INT_TAG_P(x) ((x) == Lisp_Int) | |
248 | #else | |
249 | # define LISP_INT_TAG Lisp_Int0 | |
250 | # define case_Lisp_Int case Lisp_Int0: case Lisp_Int1 | |
251 | # ifdef USE_LSB_TAG | |
252 | # define LISP_INT1_TAG 4 | |
253 | # define LISP_STRING_TAG 1 | |
254 | # define LISP_INT_TAG_P(x) (((x) & 3) == 0) | |
255 | # else | |
256 | # define LISP_INT1_TAG 1 | |
257 | # define LISP_STRING_TAG 4 | |
258 | # define LISP_INT_TAG_P(x) (((x) & 6) == 0) | |
259 | # endif | |
260 | #endif | |
261 | ||
a6fc3b5c EZ |
262 | /* Stolen from GDB. The only known compiler that doesn't support |
263 | enums in bitfields is MSVC. */ | |
264 | #ifdef _MSC_VER | |
265 | #define ENUM_BF(TYPE) unsigned int | |
266 | #else | |
267 | #define ENUM_BF(TYPE) enum TYPE | |
268 | #endif | |
269 | ||
270 | ||
3cfe6dfd JB |
271 | enum Lisp_Type |
272 | { | |
99a3d506 | 273 | /* Integer. XINT (obj) is the integer value. */ |
2de9f71c SM |
274 | #ifdef USE_2_TAGS_FOR_INTS |
275 | Lisp_Int0 = 0, | |
276 | Lisp_Int1 = LISP_INT1_TAG, | |
277 | #else | |
278 | Lisp_Int = 0, | |
279 | #endif | |
3cfe6dfd | 280 | |
99a3d506 | 281 | /* Symbol. XSYMBOL (object) points to a struct Lisp_Symbol. */ |
2de9f71c | 282 | Lisp_Symbol = 2, |
3cfe6dfd | 283 | |
84d1833e KH |
284 | /* Miscellaneous. XMISC (object) points to a union Lisp_Misc, |
285 | whose first member indicates the subtype. */ | |
2de9f71c | 286 | Lisp_Misc = 3, |
3cfe6dfd JB |
287 | |
288 | /* String. XSTRING (object) points to a struct Lisp_String. | |
99a3d506 | 289 | The length of the string, and its contents, are stored therein. */ |
2de9f71c | 290 | Lisp_String = LISP_STRING_TAG, |
3cfe6dfd | 291 | |
b5088f80 | 292 | /* Vector of Lisp objects, or something resembling it. |
7c06ac2b | 293 | XVECTOR (object) points to a struct Lisp_Vector, which contains |
b5088f80 KH |
294 | the size and contents. The size field also contains the type |
295 | information, if it's not a real vector object. */ | |
2de9f71c | 296 | Lisp_Vectorlike = 5, |
3cfe6dfd | 297 | |
99a3d506 | 298 | /* Cons. XCONS (object) points to a struct Lisp_Cons. */ |
2de9f71c | 299 | Lisp_Cons = 6, |
4d1207f6 | 300 | |
2de9f71c | 301 | Lisp_Float = 7, |
3cfe6dfd JB |
302 | }; |
303 | ||
a32fa736 | 304 | /* This is the set of data types that share a common structure. |
c98adc1b KH |
305 | The first member of the structure is a type code from this set. |
306 | The enum values are arbitrary, but we'll use large numbers to make it | |
307 | more likely that we'll spot the error if a random word in memory is | |
308 | mistakenly interpreted as a Lisp_Misc. */ | |
1c4ca5a3 KH |
309 | enum Lisp_Misc_Type |
310 | { | |
c98adc1b | 311 | Lisp_Misc_Free = 0x5eab, |
84d1833e | 312 | Lisp_Misc_Marker, |
99a3d506 | 313 | Lisp_Misc_Overlay, |
222151aa | 314 | Lisp_Misc_Save_Value, |
99a3d506 RS |
315 | /* Currently floats are not a misc type, |
316 | but let's define this in case we want to change that. */ | |
317 | Lisp_Misc_Float, | |
318 | /* This is not a type code. It is for range checking. */ | |
319 | Lisp_Misc_Limit | |
1c4ca5a3 KH |
320 | }; |
321 | ||
ce5b453a SM |
322 | /* These are the types of forwarding objects used in the value slot |
323 | of symbols for special built-in variables whose value is stored in | |
324 | C variables. */ | |
325 | enum Lisp_Fwd_Type | |
326 | { | |
327 | Lisp_Fwd_Int, /* Fwd to a C `int' variable. */ | |
328 | Lisp_Fwd_Bool, /* Fwd to a C boolean var. */ | |
329 | Lisp_Fwd_Obj, /* Fwd to a C Lisp_Object variable. */ | |
330 | Lisp_Fwd_Buffer_Obj, /* Fwd to a Lisp_Object field of buffers. */ | |
331 | Lisp_Fwd_Kboard_Obj, /* Fwd to a Lisp_Object field of kboards. */ | |
332 | }; | |
333 | ||
b86cfd28 | 334 | #ifdef USE_LISP_UNION_TYPE |
3cfe6dfd | 335 | |
671d409f | 336 | #ifndef WORDS_BIGENDIAN |
3cfe6dfd JB |
337 | |
338 | /* Definition of Lisp_Object for little-endian machines. */ | |
339 | ||
340 | typedef | |
341 | union Lisp_Object | |
342 | { | |
343 | /* Used for comparing two Lisp_Objects; | |
99a3d506 | 344 | also, positive integers can be accessed fast this way. */ |
15375a22 | 345 | EMACS_INT i; |
3cfe6dfd JB |
346 | |
347 | struct | |
348 | { | |
e4769531 | 349 | /* Use explicit signed, the signedness of a bit-field of type |
201ef780 AS |
350 | int is implementation defined. */ |
351 | signed EMACS_INT val : VALBITS; | |
a6fc3b5c | 352 | ENUM_BF (Lisp_Type) type : GCTYPEBITS; |
3cfe6dfd JB |
353 | } s; |
354 | struct | |
355 | { | |
5c20a7bf | 356 | EMACS_UINT val : VALBITS; |
a6fc3b5c | 357 | ENUM_BF (Lisp_Type) type : GCTYPEBITS; |
3cfe6dfd | 358 | } u; |
3cfe6dfd JB |
359 | } |
360 | Lisp_Object; | |
361 | ||
671d409f | 362 | #else /* If WORDS_BIGENDIAN */ |
3cfe6dfd JB |
363 | |
364 | typedef | |
365 | union Lisp_Object | |
366 | { | |
367 | /* Used for comparing two Lisp_Objects; | |
99a3d506 | 368 | also, positive integers can be accessed fast this way. */ |
15375a22 | 369 | EMACS_INT i; |
3cfe6dfd JB |
370 | |
371 | struct | |
372 | { | |
a6fc3b5c | 373 | ENUM_BF (Lisp_Type) type : GCTYPEBITS; |
e4769531 | 374 | /* Use explicit signed, the signedness of a bit-field of type |
201ef780 AS |
375 | int is implementation defined. */ |
376 | signed EMACS_INT val : VALBITS; | |
3cfe6dfd JB |
377 | } s; |
378 | struct | |
379 | { | |
a6fc3b5c | 380 | ENUM_BF (Lisp_Type) type : GCTYPEBITS; |
5c20a7bf | 381 | EMACS_UINT val : VALBITS; |
3cfe6dfd | 382 | } u; |
3cfe6dfd JB |
383 | } |
384 | Lisp_Object; | |
385 | ||
671d409f | 386 | #endif /* WORDS_BIGENDIAN */ |
3cfe6dfd | 387 | |
f3fbd155 | 388 | #ifdef __GNUC__ |
55d4c1b2 | 389 | static inline Lisp_Object |
f3fbd155 KR |
390 | LISP_MAKE_RVALUE (Lisp_Object o) |
391 | { | |
392 | return o; | |
393 | } | |
394 | #else | |
52766425 KR |
395 | /* This is more portable to pre-C99 non-GCC compilers, but for |
396 | backwards compatibility GCC still accepts an old GNU extension | |
397 | which caused this to only generate a warning. */ | |
398 | #define LISP_MAKE_RVALUE(o) (0 ? (o) : (o)) | |
f3fbd155 KR |
399 | #endif |
400 | ||
b86cfd28 | 401 | #else /* USE_LISP_UNION_TYPE */ |
3cfe6dfd | 402 | |
1c5ca8b6 | 403 | /* If union type is not wanted, define Lisp_Object as just a number. */ |
3cfe6dfd | 404 | |
c003141f | 405 | typedef EMACS_INT Lisp_Object; |
f3fbd155 | 406 | #define LISP_MAKE_RVALUE(o) (0+(o)) |
b86cfd28 | 407 | #endif /* USE_LISP_UNION_TYPE */ |
3cfe6dfd | 408 | |
d311d28c | 409 | /* In the size word of a vector, this bit means the vector has been marked. */ |
846d69ac | 410 | |
d311d28c | 411 | #define ARRAY_MARK_FLAG PTRDIFF_MIN |
846d69ac | 412 | |
b5088f80 KH |
413 | /* In the size word of a struct Lisp_Vector, this bit means it's really |
414 | some other vector-like object. */ | |
d311d28c | 415 | #define PSEUDOVECTOR_FLAG (PTRDIFF_MAX - PTRDIFF_MAX / 2) |
b5088f80 | 416 | |
303a5c93 | 417 | /* In a pseudovector, the size field actually contains a word with one |
b5088f80 | 418 | PSEUDOVECTOR_FLAG bit set, and exactly one of the following bits to |
49e49fb5 | 419 | indicate the actual type. |
539b8c1c SM |
420 | We use a bitset, even tho only one of the bits can be set at any |
421 | particular time just so as to be able to use micro-optimizations such as | |
422 | testing membership of a particular subset of pseudovectors in Fequal. | |
423 | It is not crucial, but there are plenty of bits here, so why not do it? */ | |
99a3d506 RS |
424 | enum pvec_type |
425 | { | |
426 | PVEC_NORMAL_VECTOR = 0, | |
99a3d506 RS |
427 | PVEC_PROCESS = 0x200, |
428 | PVEC_FRAME = 0x400, | |
429 | PVEC_COMPILED = 0x800, | |
430 | PVEC_WINDOW = 0x1000, | |
431 | PVEC_WINDOW_CONFIGURATION = 0x2000, | |
432 | PVEC_SUBR = 0x4000, | |
608ff985 RS |
433 | PVEC_CHAR_TABLE = 0x8000, |
434 | PVEC_BOOL_VECTOR = 0x10000, | |
435 | PVEC_BUFFER = 0x20000, | |
5010d3b8 | 436 | PVEC_HASH_TABLE = 0x40000, |
49e49fb5 | 437 | PVEC_TERMINAL = 0x80000, |
c73bd236 | 438 | PVEC_SUB_CHAR_TABLE = 0x100000, |
f85064bd KH |
439 | PVEC_FONT = 0x200000, |
440 | PVEC_OTHER = 0x400000, | |
441 | PVEC_TYPE_MASK = 0x7ffe00 | |
e2c0561e | 442 | |
cee971ad GM |
443 | #if 0 /* This is used to make the value of PSEUDOVECTOR_FLAG available to |
444 | GDB. It doesn't work on OS Alpha. Moved to a variable in | |
445 | emacs.c. */ | |
e3d48049 | 446 | PVEC_FLAG = PSEUDOVECTOR_FLAG |
cee971ad | 447 | #endif |
99a3d506 | 448 | }; |
b5088f80 | 449 | |
df631196 SM |
450 | /* For convenience, we also store the number of elements in these bits. |
451 | Note that this size is not necessarily the memory-footprint size, but | |
452 | only the number of Lisp_Object fields (that need to be traced by the GC). | |
453 | The distinction is used e.g. by Lisp_Process which places extra | |
454 | non-Lisp_Object fields at the end of the structure. */ | |
608ff985 | 455 | #define PSEUDOVECTOR_SIZE_MASK 0x1ff |
4435a68a AS |
456 | |
457 | /* Number of bits to put in each character in the internal representation | |
458 | of bool vectors. This should not vary across implementations. */ | |
459 | #define BOOL_VECTOR_BITS_PER_CHAR 8 | |
3cfe6dfd JB |
460 | \f |
461 | /* These macros extract various sorts of values from a Lisp_Object. | |
462 | For example, if tem is a Lisp_Object whose type is Lisp_Cons, | |
99a3d506 | 463 | XCONS (tem) is the struct Lisp_Cons * pointing to the memory for that cons. */ |
3cfe6dfd | 464 | |
b86cfd28 | 465 | #ifndef USE_LISP_UNION_TYPE |
3cfe6dfd | 466 | |
b9466edb SM |
467 | /* Return a perfect hash of the Lisp_Object representation. */ |
468 | #define XHASH(a) (a) | |
469 | ||
6b61353c KH |
470 | #ifdef USE_LSB_TAG |
471 | ||
472 | #define TYPEMASK ((((EMACS_INT) 1) << GCTYPEBITS) - 1) | |
8ac068ac | 473 | #define XTYPE(a) ((enum Lisp_Type) ((a) & TYPEMASK)) |
2de9f71c SM |
474 | #ifdef USE_2_TAGS_FOR_INTS |
475 | # define XINT(a) (((EMACS_INT) (a)) >> (GCTYPEBITS - 1)) | |
476 | # define XUINT(a) (((EMACS_UINT) (a)) >> (GCTYPEBITS - 1)) | |
477 | # define make_number(N) (((EMACS_INT) (N)) << (GCTYPEBITS - 1)) | |
478 | #else | |
479 | # define XINT(a) (((EMACS_INT) (a)) >> GCTYPEBITS) | |
480 | # define XUINT(a) (((EMACS_UINT) (a)) >> GCTYPEBITS) | |
481 | # define make_number(N) (((EMACS_INT) (N)) << GCTYPEBITS) | |
482 | #endif | |
8ac068ac | 483 | #define XSET(var, type, ptr) \ |
d01a7826 PE |
484 | (eassert (XTYPE ((intptr_t) (ptr)) == 0), /* Check alignment. */ \ |
485 | (var) = (type) | (intptr_t) (ptr)) | |
6b61353c | 486 | |
d01a7826 | 487 | #define XPNTR(a) ((intptr_t) ((a) & ~TYPEMASK)) |
b263a6b0 | 488 | #define XUNTAG(a, type) ((intptr_t) ((a) - (type))) |
6b61353c KH |
489 | |
490 | #else /* not USE_LSB_TAG */ | |
491 | ||
34374650 | 492 | #define VALMASK VAL_MAX |
6b61353c | 493 | |
3cfe6dfd JB |
494 | /* One need to override this if there must be high bits set in data space |
495 | (doing the result of the below & ((1 << (GCTYPE + 1)) - 1) would work | |
a32fa736 | 496 | on all machines, but would penalize machines which don't need it) |
3cfe6dfd | 497 | */ |
6b61353c | 498 | #define XTYPE(a) ((enum Lisp_Type) (((EMACS_UINT) (a)) >> VALBITS)) |
3cfe6dfd | 499 | |
221f4ef3 KH |
500 | /* For integers known to be positive, XFASTINT provides fast retrieval |
501 | and XSETFASTINT provides fast storage. This takes advantage of the | |
6b61353c | 502 | fact that Lisp_Int is 0. */ |
e43ec785 | 503 | #define XFASTINT(a) ((a) + 0) |
221f4ef3 | 504 | #define XSETFASTINT(a, b) ((a) = (b)) |
3cfe6dfd | 505 | |
2de9f71c | 506 | /* Extract the value of a Lisp_Object as a (un)signed integer. */ |
3cfe6dfd | 507 | |
2de9f71c SM |
508 | #ifdef USE_2_TAGS_FOR_INTS |
509 | # define XINT(a) ((((EMACS_INT) (a)) << (GCTYPEBITS - 1)) >> (GCTYPEBITS - 1)) | |
510 | # define XUINT(a) ((EMACS_UINT) ((a) & (1 + (VALMASK << 1)))) | |
511 | # define make_number(N) ((((EMACS_INT) (N)) & (1 + (VALMASK << 1)))) | |
512 | #else | |
513 | # define XINT(a) ((((EMACS_INT) (a)) << (BITS_PER_EMACS_INT - VALBITS)) \ | |
6b61353c | 514 | >> (BITS_PER_EMACS_INT - VALBITS)) |
2de9f71c SM |
515 | # define XUINT(a) ((EMACS_UINT) ((a) & VALMASK)) |
516 | # define make_number(N) \ | |
517 | ((((EMACS_INT) (N)) & VALMASK) | ((EMACS_INT) Lisp_Int) << VALBITS) | |
3cfe6dfd JB |
518 | #endif |
519 | ||
6df4097e PE |
520 | #define XSET(var, type, ptr) \ |
521 | ((var) = ((EMACS_INT) ((EMACS_UINT) (type) << VALBITS) \ | |
d01a7826 | 522 | + ((intptr_t) (ptr) & VALMASK))) |
b7acde90 | 523 | |
19634648 CY |
524 | #ifdef DATA_SEG_BITS |
525 | /* DATA_SEG_BITS forces extra bits to be or'd in with any pointers | |
526 | which were stored in a Lisp_Object */ | |
d01a7826 | 527 | #define XPNTR(a) ((uintptr_t) (((a) & VALMASK)) | DATA_SEG_BITS)) |
19634648 | 528 | #else |
d01a7826 | 529 | #define XPNTR(a) ((uintptr_t) ((a) & VALMASK)) |
19634648 | 530 | #endif |
b7acde90 | 531 | |
6b61353c | 532 | #endif /* not USE_LSB_TAG */ |
3cfe6dfd | 533 | |
b86cfd28 | 534 | #else /* USE_LISP_UNION_TYPE */ |
3cfe6dfd | 535 | |
2de9f71c SM |
536 | #ifdef USE_2_TAGS_FOR_INTS |
537 | # error "USE_2_TAGS_FOR_INTS is not supported with USE_LISP_UNION_TYPE" | |
538 | #endif | |
539 | ||
b9466edb | 540 | #define XHASH(a) ((a).i) |
3cfe6dfd | 541 | #define XTYPE(a) ((enum Lisp_Type) (a).u.type) |
bc827e23 PE |
542 | #define XINT(a) ((EMACS_INT) (a).s.val) |
543 | #define XUINT(a) ((EMACS_UINT) (a).u.val) | |
3cfe6dfd | 544 | |
b349d111 SM |
545 | #ifdef USE_LSB_TAG |
546 | ||
547 | # define XSET(var, vartype, ptr) \ | |
9a8e8d9b PE |
548 | (eassert ((((uintptr_t) (ptr)) & ((1 << GCTYPEBITS) - 1)) == 0), \ |
549 | (var).u.val = ((uintptr_t) (ptr)) >> GCTYPEBITS, \ | |
b349d111 SM |
550 | (var).u.type = ((char) (vartype))) |
551 | ||
524420d2 SM |
552 | /* Some versions of gcc seem to consider the bitfield width when issuing |
553 | the "cast to pointer from integer of different size" warning, so the | |
554 | cast is here to widen the value back to its natural size. */ | |
d01a7826 | 555 | # define XPNTR(v) ((intptr_t) (v).s.val << GCTYPEBITS) |
b349d111 SM |
556 | |
557 | #else /* !USE_LSB_TAG */ | |
558 | ||
559 | /* For integers known to be positive, XFASTINT provides fast retrieval | |
560 | and XSETFASTINT provides fast storage. This takes advantage of the | |
561 | fact that Lisp_Int is 0. */ | |
562 | # define XFASTINT(a) ((a).i + 0) | |
563 | # define XSETFASTINT(a, b) ((a).i = (b)) | |
564 | ||
565 | # define XSET(var, vartype, ptr) \ | |
9a8e8d9b | 566 | (((var).s.val = ((intptr_t) (ptr))), ((var).s.type = ((char) (vartype)))) |
3cfe6dfd | 567 | |
19634648 CY |
568 | #ifdef DATA_SEG_BITS |
569 | /* DATA_SEG_BITS forces extra bits to be or'd in with any pointers | |
570 | which were stored in a Lisp_Object */ | |
d01a7826 | 571 | #define XPNTR(a) ((intptr_t) (XUINT (a) | DATA_SEG_BITS)) |
19634648 | 572 | #else |
d01a7826 | 573 | #define XPNTR(a) ((intptr_t) XUINT (a)) |
19634648 CY |
574 | #endif |
575 | ||
b349d111 SM |
576 | #endif /* !USE_LSB_TAG */ |
577 | ||
74e49b38 KR |
578 | #if __GNUC__ >= 2 && defined (__OPTIMIZE__) |
579 | #define make_number(N) \ | |
580 | (__extension__ ({ Lisp_Object _l; _l.s.val = (N); _l.s.type = Lisp_Int; _l; })) | |
581 | #else | |
383e0970 | 582 | extern Lisp_Object make_number (EMACS_INT); |
74e49b38 | 583 | #endif |
e98227af | 584 | |
b86cfd28 | 585 | #endif /* USE_LISP_UNION_TYPE */ |
6b61353c | 586 | |
b349d111 SM |
587 | /* For integers known to be positive, XFASTINT sometimes provides |
588 | faster retrieval and XSETFASTINT provides faster storage. | |
589 | If not, fallback on the non-accelerated path. */ | |
590 | #ifndef XFASTINT | |
591 | # define XFASTINT(a) (XINT (a)) | |
592 | # define XSETFASTINT(a, b) (XSETINT (a, b)) | |
593 | #endif | |
594 | ||
b263a6b0 PE |
595 | /* Extract the pointer value of the Lisp object A, under the |
596 | assumption that A's type is TYPE. This is a fallback | |
597 | implementation if nothing faster is available. */ | |
598 | #ifndef XUNTAG | |
599 | # define XUNTAG(a, type) XPNTR (a) | |
600 | #endif | |
601 | ||
b9466edb SM |
602 | #define EQ(x, y) (XHASH (x) == XHASH (y)) |
603 | ||
0de4bb68 | 604 | /* Number of bits in a fixnum, including the sign bit. */ |
2de9f71c | 605 | #ifdef USE_2_TAGS_FOR_INTS |
0de4bb68 | 606 | # define FIXNUM_BITS (VALBITS + 1) |
2de9f71c | 607 | #else |
0de4bb68 | 608 | # define FIXNUM_BITS VALBITS |
2de9f71c | 609 | #endif |
dc8e8b07 | 610 | |
0de4bb68 PE |
611 | /* Mask indicating the significant bits of a fixnum. */ |
612 | #define INTMASK (((EMACS_INT) 1 << FIXNUM_BITS) - 1) | |
613 | ||
614 | /* Largest and smallest representable fixnum values. These are the C | |
615 | values. */ | |
616 | #define MOST_POSITIVE_FIXNUM (INTMASK / 2) | |
617 | #define MOST_NEGATIVE_FIXNUM (-1 - MOST_POSITIVE_FIXNUM) | |
618 | ||
987c9327 AS |
619 | /* Value is non-zero if I doesn't fit into a Lisp fixnum. It is |
620 | written this way so that it also works if I is of unsigned | |
2e6578fb | 621 | type or if I is a NaN. */ |
dc8e8b07 GM |
622 | |
623 | #define FIXNUM_OVERFLOW_P(i) \ | |
2e6578fb | 624 | (! ((0 <= (i) || MOST_NEGATIVE_FIXNUM <= (i)) && (i) <= MOST_POSITIVE_FIXNUM)) |
dc8e8b07 | 625 | |
d311d28c PE |
626 | static inline ptrdiff_t |
627 | clip_to_bounds (ptrdiff_t lower, EMACS_INT num, ptrdiff_t upper) | |
628 | { | |
629 | return num < lower ? lower : num <= upper ? num : upper; | |
630 | } | |
631 | ||
99a3d506 | 632 | /* Extract a value or address from a Lisp_Object. */ |
3cfe6dfd | 633 | |
b263a6b0 PE |
634 | #define XCONS(a) (eassert (CONSP (a)), \ |
635 | (struct Lisp_Cons *) XUNTAG (a, Lisp_Cons)) | |
636 | #define XVECTOR(a) (eassert (VECTORLIKEP (a)), \ | |
637 | (struct Lisp_Vector *) XUNTAG (a, Lisp_Vectorlike)) | |
638 | #define XSTRING(a) (eassert (STRINGP (a)), \ | |
639 | (struct Lisp_String *) XUNTAG (a, Lisp_String)) | |
640 | #define XSYMBOL(a) (eassert (SYMBOLP (a)), \ | |
641 | (struct Lisp_Symbol *) XUNTAG (a, Lisp_Symbol)) | |
642 | #define XFLOAT(a) (eassert (FLOATP (a)), \ | |
643 | (struct Lisp_Float *) XUNTAG (a, Lisp_Float)) | |
7c06ac2b RS |
644 | |
645 | /* Misc types. */ | |
c9f6631c | 646 | |
b263a6b0 | 647 | #define XMISC(a) ((union Lisp_Misc *) XUNTAG (a, Lisp_Misc)) |
5e617bc2 | 648 | #define XMISCANY(a) (eassert (MISCP (a)), &(XMISC (a)->u_any)) |
67ee9f6e | 649 | #define XMISCTYPE(a) (XMISCANY (a)->type) |
5e617bc2 JB |
650 | #define XMARKER(a) (eassert (MARKERP (a)), &(XMISC (a)->u_marker)) |
651 | #define XOVERLAY(a) (eassert (OVERLAYP (a)), &(XMISC (a)->u_overlay)) | |
652 | #define XSAVE_VALUE(a) (eassert (SAVE_VALUEP (a)), &(XMISC (a)->u_save_value)) | |
ce5b453a SM |
653 | |
654 | /* Forwarding object types. */ | |
655 | ||
656 | #define XFWDTYPE(a) (a->u_intfwd.type) | |
657 | #define XINTFWD(a) (eassert (INTFWDP (a)), &((a)->u_intfwd)) | |
658 | #define XBOOLFWD(a) (eassert (BOOLFWDP (a)), &((a)->u_boolfwd)) | |
659 | #define XOBJFWD(a) (eassert (OBJFWDP (a)), &((a)->u_objfwd)) | |
19fa82b9 | 660 | #define XBUFFER_OBJFWD(a) \ |
ce5b453a | 661 | (eassert (BUFFER_OBJFWDP (a)), &((a)->u_buffer_objfwd)) |
19fa82b9 | 662 | #define XKBOARD_OBJFWD(a) \ |
ce5b453a | 663 | (eassert (KBOARD_OBJFWDP (a)), &((a)->u_kboard_objfwd)) |
3cfe6dfd | 664 | |
7c06ac2b | 665 | /* Pseudovector types. */ |
c9f6631c | 666 | |
b263a6b0 PE |
667 | #define XPROCESS(a) (eassert (PROCESSP (a)), \ |
668 | (struct Lisp_Process *) XUNTAG (a, Lisp_Vectorlike)) | |
669 | #define XWINDOW(a) (eassert (WINDOWP (a)), \ | |
670 | (struct window *) XUNTAG (a, Lisp_Vectorlike)) | |
671 | #define XTERMINAL(a) (eassert (TERMINALP (a)), \ | |
672 | (struct terminal *) XUNTAG (a, Lisp_Vectorlike)) | |
673 | #define XSUBR(a) (eassert (SUBRP (a)), \ | |
674 | (struct Lisp_Subr *) XUNTAG (a, Lisp_Vectorlike)) | |
675 | #define XBUFFER(a) (eassert (BUFFERP (a)), \ | |
676 | (struct buffer *) XUNTAG (a, Lisp_Vectorlike)) | |
677 | #define XCHAR_TABLE(a) (eassert (CHAR_TABLE_P (a)), \ | |
678 | (struct Lisp_Char_Table *) XUNTAG (a, Lisp_Vectorlike)) | |
679 | #define XSUB_CHAR_TABLE(a) (eassert (SUB_CHAR_TABLE_P (a)), \ | |
680 | ((struct Lisp_Sub_Char_Table *) \ | |
681 | XUNTAG (a, Lisp_Vectorlike))) | |
682 | #define XBOOL_VECTOR(a) (eassert (BOOL_VECTOR_P (a)), \ | |
683 | ((struct Lisp_Bool_Vector *) \ | |
684 | XUNTAG (a, Lisp_Vectorlike))) | |
99a3d506 | 685 | |
99a3d506 | 686 | /* Construct a Lisp_Object from a value or address. */ |
7c06ac2b | 687 | |
a84f89d5 | 688 | #define XSETINT(a, b) (a) = make_number (b) |
a94ef819 | 689 | #define XSETCONS(a, b) XSET (a, Lisp_Cons, b) |
b5088f80 | 690 | #define XSETVECTOR(a, b) XSET (a, Lisp_Vectorlike, b) |
a94ef819 KH |
691 | #define XSETSTRING(a, b) XSET (a, Lisp_String, b) |
692 | #define XSETSYMBOL(a, b) XSET (a, Lisp_Symbol, b) | |
a94ef819 | 693 | #define XSETFLOAT(a, b) XSET (a, Lisp_Float, b) |
7c06ac2b RS |
694 | |
695 | /* Misc types. */ | |
c9f6631c | 696 | |
7c06ac2b | 697 | #define XSETMISC(a, b) XSET (a, Lisp_Misc, b) |
a7aa28f6 | 698 | #define XSETMARKER(a, b) (XSETMISC (a, b), XMISCTYPE (a) = Lisp_Misc_Marker) |
7c06ac2b RS |
699 | |
700 | /* Pseudovector types. */ | |
c9f6631c | 701 | |
5e617bc2 | 702 | #define XSETPVECTYPE(v, code) XSETTYPED_PVECTYPE (v, header.size, code) |
eab3844f PE |
703 | #define XSETTYPED_PVECTYPE(v, size_member, code) \ |
704 | ((v)->size_member |= PSEUDOVECTOR_FLAG | (code)) | |
705 | #define XSETPVECTYPESIZE(v, code, sizeval) \ | |
706 | ((v)->header.size = PSEUDOVECTOR_FLAG | (code) | (sizeval)) | |
aa0b0087 PE |
707 | |
708 | /* The cast to struct vectorlike_header * avoids aliasing issues. */ | |
7c06ac2b | 709 | #define XSETPSEUDOVECTOR(a, b, code) \ |
c4cfe310 | 710 | XSETTYPED_PSEUDOVECTOR(a, b, \ |
b263a6b0 PE |
711 | (((struct vectorlike_header *) \ |
712 | XUNTAG (a, Lisp_Vectorlike)) \ | |
713 | ->size), \ | |
c4cfe310 | 714 | code) |
eab3844f | 715 | #define XSETTYPED_PSEUDOVECTOR(a, b, size, code) \ |
beb9f745 | 716 | (XSETVECTOR (a, b), \ |
eab3844f | 717 | eassert ((size & (PSEUDOVECTOR_FLAG | PVEC_TYPE_MASK)) \ |
beb9f745 | 718 | == (PSEUDOVECTOR_FLAG | (code)))) |
aa0b0087 | 719 | |
7c06ac2b RS |
720 | #define XSETWINDOW_CONFIGURATION(a, b) \ |
721 | (XSETPSEUDOVECTOR (a, b, PVEC_WINDOW_CONFIGURATION)) | |
722 | #define XSETPROCESS(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_PROCESS)) | |
723 | #define XSETWINDOW(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_WINDOW)) | |
49e49fb5 | 724 | #define XSETTERMINAL(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_TERMINAL)) |
aa0b0087 | 725 | /* XSETSUBR is special since Lisp_Subr lacks struct vectorlike_header. */ |
1a2f43d0 PE |
726 | #define XSETSUBR(a, b) \ |
727 | XSETTYPED_PSEUDOVECTOR (a, b, XSUBR (a)->size, PVEC_SUBR) | |
7c06ac2b | 728 | #define XSETCOMPILED(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_COMPILED)) |
99a3d506 | 729 | #define XSETBUFFER(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_BUFFER)) |
608ff985 RS |
730 | #define XSETCHAR_TABLE(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_CHAR_TABLE)) |
731 | #define XSETBOOL_VECTOR(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_BOOL_VECTOR)) | |
1842abb2 | 732 | #define XSETSUB_CHAR_TABLE(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_SUB_CHAR_TABLE)) |
c9f6631c GM |
733 | |
734 | /* Convenience macros for dealing with Lisp arrays. */ | |
735 | ||
915b2a6a | 736 | #define AREF(ARRAY, IDX) XVECTOR ((ARRAY))->contents[IDX] |
77b37c05 | 737 | #define ASIZE(ARRAY) XVECTOR ((ARRAY))->header.size |
915b2a6a | 738 | /* The IDX==IDX tries to detect when the macro argument is side-effecting. */ |
4b75ffab SM |
739 | #define ASET(ARRAY, IDX, VAL) \ |
740 | (eassert ((IDX) == (IDX)), \ | |
741 | eassert ((IDX) >= 0 && (IDX) < ASIZE (ARRAY)), \ | |
915b2a6a | 742 | AREF ((ARRAY), (IDX)) = (VAL)) |
c9f6631c | 743 | |
d90a14e0 GM |
744 | /* Convenience macros for dealing with Lisp strings. */ |
745 | ||
674537ea | 746 | #define SDATA(string) (XSTRING (string)->data + 0) |
b9466edb SM |
747 | #define SREF(string, index) (SDATA (string)[index] + 0) |
748 | #define SSET(string, index, new) (SDATA (string)[index] = (new)) | |
7412b6fd KR |
749 | #define SCHARS(string) (XSTRING (string)->size + 0) |
750 | #define SBYTES(string) (STRING_BYTES (XSTRING (string)) + 0) | |
751 | ||
51b59d79 PE |
752 | /* Avoid "differ in sign" warnings. */ |
753 | #define SSDATA(x) ((char *) SDATA (x)) | |
754 | ||
7412b6fd KR |
755 | #define STRING_SET_CHARS(string, newsize) \ |
756 | (XSTRING (string)->size = (newsize)) | |
d90a14e0 | 757 | |
101d50c8 | 758 | #define STRING_COPYIN(string, index, new, count) \ |
72af86bd | 759 | memcpy (SDATA (string) + index, new, count) |
101d50c8 | 760 | |
c8a39089 KS |
761 | /* Type checking. */ |
762 | ||
763 | #define CHECK_TYPE(ok, Qxxxp, x) \ | |
764 | do { if (!(ok)) wrong_type_argument (Qxxxp, (x)); } while (0) | |
765 | ||
766 | ||
3cfe6dfd | 767 | \f |
5f6bf5fe | 768 | /* See the macros in intervals.h. */ |
e221eae3 JA |
769 | |
770 | typedef struct interval *INTERVAL; | |
771 | ||
772 | /* Complain if object is not string or buffer type */ | |
874cc80e | 773 | #define CHECK_STRING_OR_BUFFER(x) \ |
c8a39089 KS |
774 | CHECK_TYPE (STRINGP (x) || BUFFERP (x), Qbuffer_or_string_p, x) |
775 | ||
e221eae3 | 776 | \f |
3cfe6dfd JB |
777 | /* In a cons, the markbit of the car is the gc mark bit */ |
778 | ||
779 | struct Lisp_Cons | |
780 | { | |
8f34f70a KR |
781 | /* Please do not use the names of these elements in code other |
782 | than the core lisp implementation. Use XCAR and XCDR below. */ | |
783 | #ifdef HIDE_LISP_IMPLEMENTATION | |
3a623fee AS |
784 | Lisp_Object car_; |
785 | union | |
786 | { | |
787 | Lisp_Object cdr_; | |
788 | struct Lisp_Cons *chain; | |
789 | } u; | |
8f34f70a | 790 | #else |
3a623fee AS |
791 | Lisp_Object car; |
792 | union | |
793 | { | |
794 | Lisp_Object cdr; | |
795 | struct Lisp_Cons *chain; | |
796 | } u; | |
8f34f70a | 797 | #endif |
3cfe6dfd JB |
798 | }; |
799 | ||
b7acde90 | 800 | /* Take the car or cdr of something known to be a cons cell. */ |
f3fbd155 KR |
801 | /* The _AS_LVALUE macros shouldn't be used outside of the minimal set |
802 | of code that has to know what a cons cell looks like. Other code not | |
803 | part of the basic lisp implementation should assume that the car and cdr | |
804 | fields are not accessible as lvalues. (What if we want to switch to | |
805 | a copying collector someday? Cached cons cell field addresses may be | |
806 | invalidated at arbitrary points.) */ | |
8f34f70a | 807 | #ifdef HIDE_LISP_IMPLEMENTATION |
f3fbd155 | 808 | #define XCAR_AS_LVALUE(c) (XCONS ((c))->car_) |
3a623fee | 809 | #define XCDR_AS_LVALUE(c) (XCONS ((c))->u.cdr_) |
8f34f70a | 810 | #else |
f3fbd155 | 811 | #define XCAR_AS_LVALUE(c) (XCONS ((c))->car) |
3a623fee | 812 | #define XCDR_AS_LVALUE(c) (XCONS ((c))->u.cdr) |
8f34f70a | 813 | #endif |
b7acde90 | 814 | |
f3fbd155 | 815 | /* Use these from normal code. */ |
5e617bc2 JB |
816 | #define XCAR(c) LISP_MAKE_RVALUE (XCAR_AS_LVALUE (c)) |
817 | #define XCDR(c) LISP_MAKE_RVALUE (XCDR_AS_LVALUE (c)) | |
f3fbd155 KR |
818 | |
819 | /* Use these to set the fields of a cons cell. | |
820 | ||
821 | Note that both arguments may refer to the same object, so 'n' | |
822 | should not be read after 'c' is first modified. Also, neither | |
823 | argument should be evaluated more than once; side effects are | |
824 | especially common in the second argument. */ | |
5e617bc2 JB |
825 | #define XSETCAR(c,n) (XCAR_AS_LVALUE (c) = (n)) |
826 | #define XSETCDR(c,n) (XCDR_AS_LVALUE (c) = (n)) | |
f3fbd155 | 827 | |
b7acde90 KH |
828 | /* Take the car or cdr of something whose type is not known. */ |
829 | #define CAR(c) \ | |
830 | (CONSP ((c)) ? XCAR ((c)) \ | |
831 | : NILP ((c)) ? Qnil \ | |
915b2a6a | 832 | : wrong_type_argument (Qlistp, (c))) |
b7acde90 KH |
833 | |
834 | #define CDR(c) \ | |
835 | (CONSP ((c)) ? XCDR ((c)) \ | |
836 | : NILP ((c)) ? Qnil \ | |
915b2a6a | 837 | : wrong_type_argument (Qlistp, (c))) |
b7acde90 | 838 | |
c8a39089 KS |
839 | /* Take the car or cdr of something whose type is not known. */ |
840 | #define CAR_SAFE(c) \ | |
841 | (CONSP ((c)) ? XCAR ((c)) : Qnil) | |
842 | ||
843 | #define CDR_SAFE(c) \ | |
844 | (CONSP ((c)) ? XCDR ((c)) : Qnil) | |
845 | ||
d8fc7ce4 KH |
846 | /* Nonzero if STR is a multibyte string. */ |
847 | #define STRING_MULTIBYTE(STR) \ | |
848 | (XSTRING (STR)->size_byte >= 0) | |
849 | ||
850 | /* Return the length in bytes of STR. */ | |
35f464a7 GM |
851 | |
852 | #ifdef GC_CHECK_STRING_BYTES | |
853 | ||
854 | struct Lisp_String; | |
d311d28c | 855 | extern ptrdiff_t string_bytes (struct Lisp_String *); |
35f464a7 GM |
856 | #define STRING_BYTES(S) string_bytes ((S)) |
857 | ||
858 | #else /* not GC_CHECK_STRING_BYTES */ | |
859 | ||
d8fc7ce4 KH |
860 | #define STRING_BYTES(STR) \ |
861 | ((STR)->size_byte < 0 ? (STR)->size : (STR)->size_byte) | |
862 | ||
35f464a7 GM |
863 | #endif /* not GC_CHECK_STRING_BYTES */ |
864 | ||
c9d624c6 PE |
865 | /* An upper bound on the number of bytes in a Lisp string, not |
866 | counting the terminating null. This a tight enough bound to | |
867 | prevent integer overflow errors that would otherwise occur during | |
868 | string size calculations. A string cannot contain more bytes than | |
869 | a fixnum can represent, nor can it be so long that C pointer | |
870 | arithmetic stops working on the string plus its terminating null. | |
871 | Although the actual size limit (see STRING_BYTES_MAX in alloc.c) | |
872 | may be a bit smaller than STRING_BYTES_BOUND, calculating it here | |
873 | would expose alloc.c internal details that we'd rather keep | |
874 | private. The cast to ptrdiff_t ensures that STRING_BYTES_BOUND is | |
875 | signed. */ | |
876 | #define STRING_BYTES_BOUND \ | |
877 | min (MOST_POSITIVE_FIXNUM, (ptrdiff_t) min (SIZE_MAX, PTRDIFF_MAX) - 1) | |
d1f3d2af | 878 | |
491c2516 | 879 | /* Mark STR as a unibyte string. */ |
2c668b9a JB |
880 | #define STRING_SET_UNIBYTE(STR) \ |
881 | do { if (EQ (STR, empty_multibyte_string)) \ | |
882 | (STR) = empty_unibyte_string; \ | |
883 | else XSTRING (STR)->size_byte = -1; } while (0) | |
491c2516 | 884 | |
94ef4d69 KH |
885 | /* Mark STR as a multibyte string. Assure that STR contains only |
886 | ASCII characters in advance. */ | |
887 | #define STRING_SET_MULTIBYTE(STR) \ | |
888 | do { if (EQ (STR, empty_unibyte_string)) \ | |
889 | (STR) = empty_multibyte_string; \ | |
890 | else XSTRING (STR)->size_byte = XSTRING (STR)->size; } while (0) | |
891 | ||
491c2516 | 892 | /* Get text properties. */ |
90b81429 KR |
893 | #define STRING_INTERVALS(STR) (XSTRING (STR)->intervals + 0) |
894 | ||
895 | /* Set text properties. */ | |
896 | #define STRING_SET_INTERVALS(STR, INT) (XSTRING (STR)->intervals = (INT)) | |
d8fc7ce4 | 897 | |
3cfe6dfd JB |
898 | /* In a string or vector, the sign bit of the `size' is the gc mark bit */ |
899 | ||
900 | struct Lisp_String | |
901 | { | |
d311d28c PE |
902 | ptrdiff_t size; |
903 | ptrdiff_t size_byte; | |
4618074a | 904 | INTERVAL intervals; /* text properties in this string */ |
f05d7ea2 | 905 | unsigned char *data; |
3cfe6dfd JB |
906 | }; |
907 | ||
aa0b0087 PE |
908 | /* Header of vector-like objects. This documents the layout constraints on |
909 | vectors and pseudovectors other than struct Lisp_Subr. It also prevents | |
910 | compilers from being fooled by Emacs's type punning: the XSETPSEUDOVECTOR | |
911 | and PSEUDOVECTORP macros cast their pointers to struct vectorlike_header *, | |
912 | because when two such pointers potentially alias, a compiler won't | |
913 | incorrectly reorder loads and stores to their size fields. See | |
914 | <http://debbugs.gnu.org/cgi/bugreport.cgi?bug=8546>. */ | |
b102ceb1 | 915 | struct vectorlike_header |
3cfe6dfd | 916 | { |
d311d28c | 917 | ptrdiff_t size; |
aa0b0087 PE |
918 | |
919 | /* Pointer to the next vector-like object. It is generally a buffer or a | |
920 | Lisp_Vector alias, so for convenience it is a union instead of a | |
921 | pointer: this way, one can write P->next.vector instead of ((struct | |
922 | Lisp_Vector *) P->next). */ | |
eab3844f PE |
923 | union { |
924 | struct buffer *buffer; | |
925 | struct Lisp_Vector *vector; | |
926 | } next; | |
927 | }; | |
928 | ||
929 | struct Lisp_Vector | |
930 | { | |
b102ceb1 | 931 | struct vectorlike_header header; |
3cfe6dfd JB |
932 | Lisp_Object contents[1]; |
933 | }; | |
934 | ||
94225242 | 935 | /* If a struct is made to look like a vector, this macro returns the length |
4115d3f7 | 936 | of the shortest vector that would hold that struct. */ |
4bb7141c | 937 | #define VECSIZE(type) ((sizeof (type) \ |
89887d67 | 938 | - offsetof (struct Lisp_Vector, contents[0]) \ |
5e617bc2 | 939 | + sizeof (Lisp_Object) - 1) /* round up */ \ |
94225242 KH |
940 | / sizeof (Lisp_Object)) |
941 | ||
d0ebe33a SM |
942 | /* Like VECSIZE, but used when the pseudo-vector has non-Lisp_Object fields |
943 | at the end and we need to compute the number of Lisp_Object fields (the | |
944 | ones that the GC needs to trace). */ | |
945 | #define PSEUDOVECSIZE(type, nonlispfield) \ | |
5e617bc2 | 946 | ((offsetof (type, nonlispfield) - offsetof (struct Lisp_Vector, contents[0])) \ |
d0ebe33a SM |
947 | / sizeof (Lisp_Object)) |
948 | ||
1842abb2 | 949 | /* A char-table is a kind of vectorlike, with contents are like a |
ea724a01 | 950 | vector but with a few other slots. For some purposes, it makes |
1842abb2 | 951 | sense to handle a char-table with type struct Lisp_Vector. An |
ea724a01 KH |
952 | element of a char table can be any Lisp objects, but if it is a sub |
953 | char-table, we treat it a table that contains information of a | |
1842abb2 KH |
954 | specific range of characters. A sub char-table has the same |
955 | structure as a vector. A sub char table appears only in an element | |
956 | of a char-table, and there's no way to access it directly from | |
957 | Emacs Lisp program. */ | |
608ff985 | 958 | |
ea724a01 KH |
959 | /* This is the number of slots that every char table must have. This |
960 | counts the ordinary slots and the top, defalt, parent, and purpose | |
961 | slots. */ | |
1842abb2 | 962 | #define CHAR_TABLE_STANDARD_SLOTS (VECSIZE (struct Lisp_Char_Table) - 1) |
608ff985 RS |
963 | |
964 | /* Return the number of "extra" slots in the char table CT. */ | |
965 | ||
966 | #define CHAR_TABLE_EXTRA_SLOTS(CT) \ | |
eab3844f | 967 | (((CT)->header.size & PSEUDOVECTOR_SIZE_MASK) - CHAR_TABLE_STANDARD_SLOTS) |
608ff985 | 968 | |
d9da2f45 KH |
969 | #ifdef __GNUC__ |
970 | ||
971 | #define CHAR_TABLE_REF_ASCII(CT, IDX) \ | |
972 | ({struct Lisp_Char_Table *_tbl = NULL; \ | |
973 | Lisp_Object _val; \ | |
974 | do { \ | |
975 | _tbl = _tbl ? XCHAR_TABLE (_tbl->parent) : XCHAR_TABLE (CT); \ | |
976 | _val = (! SUB_CHAR_TABLE_P (_tbl->ascii) ? _tbl->ascii \ | |
977 | : XSUB_CHAR_TABLE (_tbl->ascii)->contents[IDX]); \ | |
978 | if (NILP (_val)) \ | |
979 | _val = _tbl->defalt; \ | |
980 | } while (NILP (_val) && ! NILP (_tbl->parent)); \ | |
981 | _val; }) | |
c5c21b70 | 982 | |
d9da2f45 KH |
983 | #else /* not __GNUC__ */ |
984 | ||
985 | #define CHAR_TABLE_REF_ASCII(CT, IDX) \ | |
986 | (! NILP (XCHAR_TABLE (CT)->ascii) \ | |
987 | ? (! SUB_CHAR_TABLE_P (XCHAR_TABLE (CT)->ascii) \ | |
988 | ? XCHAR_TABLE (CT)->ascii \ | |
989 | : ! NILP (XSUB_CHAR_TABLE (XCHAR_TABLE (CT)->ascii)->contents[IDX]) \ | |
990 | ? XSUB_CHAR_TABLE (XCHAR_TABLE (CT)->ascii)->contents[IDX] \ | |
991 | : char_table_ref ((CT), (IDX))) \ | |
992 | : char_table_ref ((CT), (IDX))) | |
993 | ||
994 | #endif /* not __GNUC__ */ | |
995 | ||
ea204efb PE |
996 | /* Compute A OP B, using the unsigned comparison operator OP. A and B |
997 | should be integer expressions. This is not the same as | |
53964682 | 998 | mathematical comparison; for example, UNSIGNED_CMP (0, <, -1) |
ea204efb PE |
999 | returns 1. For efficiency, prefer plain unsigned comparison if A |
1000 | and B's sizes both fit (after integer promotion). */ | |
1001 | #define UNSIGNED_CMP(a, op, b) \ | |
1002 | (max (sizeof ((a) + 0), sizeof ((b) + 0)) <= sizeof (unsigned) \ | |
1003 | ? ((a) + (unsigned) 0) op ((b) + (unsigned) 0) \ | |
1004 | : ((a) + (uintmax_t) 0) op ((b) + (uintmax_t) 0)) | |
1005 | ||
15206ed9 | 1006 | /* Nonzero iff C is an ASCII character. */ |
ea204efb | 1007 | #define ASCII_CHAR_P(c) UNSIGNED_CMP (c, <, 0x80) |
15206ed9 | 1008 | |
b96656ce | 1009 | /* Almost equivalent to Faref (CT, IDX) with optimization for ASCII |
1842abb2 | 1010 | characters. Do not check validity of CT. */ |
d9da2f45 KH |
1011 | #define CHAR_TABLE_REF(CT, IDX) \ |
1012 | (ASCII_CHAR_P (IDX) ? CHAR_TABLE_REF_ASCII ((CT), (IDX)) \ | |
1842abb2 | 1013 | : char_table_ref ((CT), (IDX))) |
b96656ce | 1014 | |
dcafe1c7 KH |
1015 | /* Almost equivalent to Faref (CT, IDX). However, if the result is |
1016 | not a character, return IDX. | |
29b7163f RS |
1017 | |
1018 | For these characters, do not check validity of CT | |
1019 | and do not follow parent. */ | |
1842abb2 KH |
1020 | #define CHAR_TABLE_TRANSLATE(CT, IDX) \ |
1021 | char_table_translate (CT, IDX) | |
29b7163f | 1022 | |
b96656ce | 1023 | /* Equivalent to Faset (CT, IDX, VAL) with optimization for ASCII and |
c497dce4 | 1024 | 8-bit European characters. Do not check validity of CT. */ |
1842abb2 | 1025 | #define CHAR_TABLE_SET(CT, IDX, VAL) \ |
193e32d9 | 1026 | (ASCII_CHAR_P (IDX) && SUB_CHAR_TABLE_P (XCHAR_TABLE (CT)->ascii) \ |
1842abb2 KH |
1027 | ? XSUB_CHAR_TABLE (XCHAR_TABLE (CT)->ascii)->contents[IDX] = VAL \ |
1028 | : char_table_set (CT, IDX, VAL)) | |
1029 | ||
1842abb2 KH |
1030 | #define CHARTAB_SIZE_BITS_0 6 |
1031 | #define CHARTAB_SIZE_BITS_1 4 | |
1032 | #define CHARTAB_SIZE_BITS_2 5 | |
1033 | #define CHARTAB_SIZE_BITS_3 7 | |
1034 | ||
1035 | extern const int chartab_size[4]; | |
1036 | ||
1037 | struct Lisp_Sub_Char_Table; | |
b96656ce | 1038 | |
608ff985 RS |
1039 | struct Lisp_Char_Table |
1040 | { | |
eab3844f | 1041 | /* HEADER.SIZE is the vector's size field, which also holds the |
608ff985 | 1042 | pseudovector type information. It holds the size, too. |
c73bd236 MB |
1043 | The size counts the defalt, parent, purpose, ascii, |
1044 | contents, and extras slots. */ | |
b102ceb1 | 1045 | struct vectorlike_header header; |
1842abb2 | 1046 | |
608ff985 RS |
1047 | /* This holds a default value, |
1048 | which is used whenever the value for a specific character is nil. */ | |
1049 | Lisp_Object defalt; | |
ea724a01 | 1050 | |
8f924df7 KH |
1051 | /* This points to another char table, which we inherit from when the |
1052 | value for a specific character is nil. The `defalt' slot takes | |
1053 | precedence over this. */ | |
608ff985 | 1054 | Lisp_Object parent; |
1842abb2 | 1055 | |
8f924df7 KH |
1056 | /* This is a symbol which says what kind of use this char-table is |
1057 | meant for. */ | |
7f73dc9d | 1058 | Lisp_Object purpose; |
1842abb2 | 1059 | |
8f924df7 KH |
1060 | /* The bottom sub char-table for characters of the range 0..127. It |
1061 | is nil if none of ASCII character has a specific value. */ | |
1062 | Lisp_Object ascii; | |
1842abb2 | 1063 | |
8f924df7 | 1064 | Lisp_Object contents[(1 << CHARTAB_SIZE_BITS_0)]; |
1842abb2 | 1065 | |
8f924df7 | 1066 | /* These hold additional data. It is a vector. */ |
608ff985 RS |
1067 | Lisp_Object extras[1]; |
1068 | }; | |
1069 | ||
1842abb2 | 1070 | struct Lisp_Sub_Char_Table |
8f924df7 | 1071 | { |
eab3844f | 1072 | /* HEADER.SIZE is the vector's size field, which also holds the |
8f924df7 | 1073 | pseudovector type information. It holds the size, too. */ |
b102ceb1 | 1074 | struct vectorlike_header header; |
1842abb2 | 1075 | |
8f924df7 | 1076 | /* Depth of this sub char-table. It should be 1, 2, or 3. A sub |
78edd3b7 | 1077 | char-table of depth 1 contains 16 elements, and each element |
8f924df7 KH |
1078 | covers 4096 (128*32) characters. A sub char-table of depth 2 |
1079 | contains 32 elements, and each element covers 128 characters. A | |
1080 | sub char-table of depth 3 contains 128 elements, and each element | |
1081 | is for one character. */ | |
1082 | Lisp_Object depth; | |
1842abb2 | 1083 | |
8f924df7 KH |
1084 | /* Minimum character covered by the sub char-table. */ |
1085 | Lisp_Object min_char; | |
1842abb2 | 1086 | |
8f924df7 KH |
1087 | Lisp_Object contents[1]; |
1088 | }; | |
608ff985 RS |
1089 | |
1090 | /* A boolvector is a kind of vectorlike, with contents are like a string. */ | |
1091 | struct Lisp_Bool_Vector | |
1092 | { | |
eab3844f | 1093 | /* HEADER.SIZE is the vector's size field. It doesn't have the real size, |
608ff985 | 1094 | just the subtype information. */ |
b102ceb1 | 1095 | struct vectorlike_header header; |
608ff985 | 1096 | /* This is the size in bits. */ |
b61cc01c | 1097 | EMACS_INT size; |
608ff985 RS |
1098 | /* This contains the actual bits, packed into bytes. */ |
1099 | unsigned char data[1]; | |
1100 | }; | |
1101 | ||
7c06ac2b RS |
1102 | /* This structure describes a built-in function. |
1103 | It is generated by the DEFUN macro only. | |
1104 | defsubr makes it into a Lisp object. | |
1105 | ||
1106 | This type is treated in most respects as a pseudovector, | |
1107 | but since we never dynamically allocate or free them, | |
b102ceb1 | 1108 | we don't need a struct vectorlike_header and its 'next' field. */ |
e98227af | 1109 | |
3cfe6dfd JB |
1110 | struct Lisp_Subr |
1111 | { | |
d311d28c | 1112 | ptrdiff_t size; |
c0f2f16b DN |
1113 | union { |
1114 | Lisp_Object (*a0) (void); | |
1115 | Lisp_Object (*a1) (Lisp_Object); | |
1116 | Lisp_Object (*a2) (Lisp_Object, Lisp_Object); | |
1117 | Lisp_Object (*a3) (Lisp_Object, Lisp_Object, Lisp_Object); | |
1118 | Lisp_Object (*a4) (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); | |
1119 | Lisp_Object (*a5) (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); | |
1120 | Lisp_Object (*a6) (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); | |
1121 | Lisp_Object (*a7) (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); | |
1122 | Lisp_Object (*a8) (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); | |
d5273788 | 1123 | Lisp_Object (*aUNEVALLED) (Lisp_Object args); |
f66c7cf8 | 1124 | Lisp_Object (*aMANY) (ptrdiff_t, Lisp_Object *); |
c0f2f16b | 1125 | } function; |
3cfe6dfd | 1126 | short min_args, max_args; |
5e2327cf | 1127 | const char *symbol_name; |
89dc303e DN |
1128 | const char *intspec; |
1129 | const char *doc; | |
3cfe6dfd | 1130 | }; |
5010d3b8 GM |
1131 | |
1132 | \f | |
a32fa736 GM |
1133 | /*********************************************************************** |
1134 | Symbols | |
1135 | ***********************************************************************/ | |
1136 | ||
1137 | /* Interned state of a symbol. */ | |
1138 | ||
1139 | enum symbol_interned | |
1140 | { | |
1141 | SYMBOL_UNINTERNED = 0, | |
1142 | SYMBOL_INTERNED = 1, | |
1143 | SYMBOL_INTERNED_IN_INITIAL_OBARRAY = 2 | |
1144 | }; | |
1145 | ||
ce5b453a SM |
1146 | enum symbol_redirect |
1147 | { | |
1148 | SYMBOL_PLAINVAL = 4, | |
1149 | SYMBOL_VARALIAS = 1, | |
1150 | SYMBOL_LOCALIZED = 2, | |
9aba6043 | 1151 | SYMBOL_FORWARDED = 3 |
ce5b453a SM |
1152 | }; |
1153 | ||
a32fa736 GM |
1154 | struct Lisp_Symbol |
1155 | { | |
a84f89d5 SM |
1156 | unsigned gcmarkbit : 1; |
1157 | ||
ce5b453a SM |
1158 | /* Indicates where the value can be found: |
1159 | 0 : it's a plain var, the value is in the `value' field. | |
1160 | 1 : it's a varalias, the value is really in the `alias' symbol. | |
1161 | 2 : it's a localized var, the value is in the `blv' object. | |
9aba6043 | 1162 | 3 : it's a forwarding variable, the value is in `forward'. */ |
a6fc3b5c | 1163 | ENUM_BF (symbol_redirect) redirect : 3; |
a32fa736 GM |
1164 | |
1165 | /* Non-zero means symbol is constant, i.e. changing its value | |
ce5b453a SM |
1166 | should signal an error. If the value is 3, then the var |
1167 | can be changed, but only by `defconst'. */ | |
1168 | unsigned constant : 2; | |
a32fa736 GM |
1169 | |
1170 | /* Interned state of the symbol. This is an enumerator from | |
1171 | enum symbol_interned. */ | |
1172 | unsigned interned : 2; | |
1e973bc7 | 1173 | |
b9598260 SM |
1174 | /* Non-zero means that this variable has been explicitly declared |
1175 | special (with `defvar' etc), and shouldn't be lexically bound. */ | |
1176 | unsigned declared_special : 1; | |
a32fa736 | 1177 | |
74d70085 | 1178 | /* The symbol's name, as a Lisp string. |
74d70085 KR |
1179 | The name "xname" is used to intentionally break code referring to |
1180 | the old field "name" of type pointer to struct Lisp_String. */ | |
1181 | Lisp_Object xname; | |
a32fa736 | 1182 | |
9aba6043 SM |
1183 | /* Value of the symbol or Qunbound if unbound. Which alternative of the |
1184 | union is used depends on the `redirect' field above. */ | |
ce5b453a SM |
1185 | union { |
1186 | Lisp_Object value; | |
1187 | struct Lisp_Symbol *alias; | |
1188 | struct Lisp_Buffer_Local_Value *blv; | |
1189 | union Lisp_Fwd *fwd; | |
1190 | } val; | |
a32fa736 | 1191 | |
d28981c9 | 1192 | /* Function value of the symbol or Qunbound if not fboundp. */ |
a32fa736 GM |
1193 | Lisp_Object function; |
1194 | ||
1195 | /* The symbol's property list. */ | |
1196 | Lisp_Object plist; | |
e2c0561e | 1197 | |
a32fa736 GM |
1198 | /* Next symbol in obarray bucket, if the symbol is interned. */ |
1199 | struct Lisp_Symbol *next; | |
1200 | }; | |
1201 | ||
74d70085 KR |
1202 | /* Value is name of symbol. */ |
1203 | ||
ce5b453a SM |
1204 | #define SYMBOL_VAL(sym) \ |
1205 | (eassert ((sym)->redirect == SYMBOL_PLAINVAL), (sym)->val.value) | |
1206 | #define SYMBOL_ALIAS(sym) \ | |
1207 | (eassert ((sym)->redirect == SYMBOL_VARALIAS), (sym)->val.alias) | |
1208 | #define SYMBOL_BLV(sym) \ | |
1209 | (eassert ((sym)->redirect == SYMBOL_LOCALIZED), (sym)->val.blv) | |
1210 | #define SYMBOL_FWD(sym) \ | |
1211 | (eassert ((sym)->redirect == SYMBOL_FORWARDED), (sym)->val.fwd) | |
1212 | #define SET_SYMBOL_VAL(sym, v) \ | |
1213 | (eassert ((sym)->redirect == SYMBOL_PLAINVAL), (sym)->val.value = (v)) | |
1214 | #define SET_SYMBOL_ALIAS(sym, v) \ | |
1215 | (eassert ((sym)->redirect == SYMBOL_VARALIAS), (sym)->val.alias = (v)) | |
1216 | #define SET_SYMBOL_BLV(sym, v) \ | |
1217 | (eassert ((sym)->redirect == SYMBOL_LOCALIZED), (sym)->val.blv = (v)) | |
1218 | #define SET_SYMBOL_FWD(sym, v) \ | |
1219 | (eassert ((sym)->redirect == SYMBOL_FORWARDED), (sym)->val.fwd = (v)) | |
1220 | ||
74d70085 KR |
1221 | #define SYMBOL_NAME(sym) \ |
1222 | LISP_MAKE_RVALUE (XSYMBOL (sym)->xname) | |
1223 | ||
a32fa736 GM |
1224 | /* Value is non-zero if SYM is an interned symbol. */ |
1225 | ||
1226 | #define SYMBOL_INTERNED_P(sym) \ | |
1227 | (XSYMBOL (sym)->interned != SYMBOL_UNINTERNED) | |
1228 | ||
1229 | /* Value is non-zero if SYM is interned in initial_obarray. */ | |
1230 | ||
1231 | #define SYMBOL_INTERNED_IN_INITIAL_OBARRAY_P(sym) \ | |
1232 | (XSYMBOL (sym)->interned == SYMBOL_INTERNED_IN_INITIAL_OBARRAY) | |
1233 | ||
1234 | /* Value is non-zero if symbol is considered a constant, i.e. its | |
1235 | value cannot be changed (there is an exception for keyword symbols, | |
1236 | whose value can be set to the keyword symbol itself). */ | |
1237 | ||
1238 | #define SYMBOL_CONSTANT_P(sym) XSYMBOL (sym)->constant | |
1239 | ||
cd3520a4 JB |
1240 | #define DEFSYM(sym, name) \ |
1241 | do { (sym) = intern_c_string ((name)); staticpro (&(sym)); } while (0) | |
1242 | ||
a32fa736 | 1243 | \f |
5010d3b8 GM |
1244 | /*********************************************************************** |
1245 | Hash Tables | |
1246 | ***********************************************************************/ | |
1247 | ||
1248 | /* The structure of a Lisp hash table. */ | |
1249 | ||
1250 | struct Lisp_Hash_Table | |
1251 | { | |
eab3844f | 1252 | /* This is for Lisp; the hash table code does not refer to it. */ |
b102ceb1 | 1253 | struct vectorlike_header header; |
e2c0561e | 1254 | |
5010d3b8 GM |
1255 | /* Function used to compare keys. */ |
1256 | Lisp_Object test; | |
1257 | ||
1258 | /* Nil if table is non-weak. Otherwise a symbol describing the | |
1259 | weakness of the table. */ | |
1260 | Lisp_Object weak; | |
e2c0561e | 1261 | |
5010d3b8 GM |
1262 | /* When the table is resized, and this is an integer, compute the |
1263 | new size by adding this to the old size. If a float, compute the | |
1264 | new size by multiplying the old size with this factor. */ | |
1265 | Lisp_Object rehash_size; | |
1266 | ||
1267 | /* Resize hash table when number of entries/ table size is >= this | |
1268 | ratio, a float. */ | |
1269 | Lisp_Object rehash_threshold; | |
1270 | ||
5010d3b8 GM |
1271 | /* Vector of hash codes.. If hash[I] is nil, this means that that |
1272 | entry I is unused. */ | |
1273 | Lisp_Object hash; | |
1274 | ||
1275 | /* Vector used to chain entries. If entry I is free, next[I] is the | |
1276 | entry number of the next free item. If entry I is non-free, | |
1277 | next[I] is the index of the next entry in the collision chain. */ | |
1278 | Lisp_Object next; | |
1279 | ||
1280 | /* Index of first free entry in free list. */ | |
1281 | Lisp_Object next_free; | |
1282 | ||
1283 | /* Bucket vector. A non-nil entry is the index of the first item in | |
1284 | a collision chain. This vector's size can be larger than the | |
1285 | hash table size to reduce collisions. */ | |
1286 | Lisp_Object index; | |
1287 | ||
5010d3b8 GM |
1288 | /* User-supplied hash function, or nil. */ |
1289 | Lisp_Object user_hash_function; | |
1290 | ||
1291 | /* User-supplied key comparison function, or nil. */ | |
1292 | Lisp_Object user_cmp_function; | |
1293 | ||
878f97ff | 1294 | /* Only the fields above are traced normally by the GC. The ones below |
78edd3b7 | 1295 | `count' are special and are either ignored by the GC or traced in |
878f97ff SM |
1296 | a special way (e.g. because of weakness). */ |
1297 | ||
1298 | /* Number of key/value entries in the table. */ | |
d311d28c | 1299 | ptrdiff_t count; |
878f97ff SM |
1300 | |
1301 | /* Vector of keys and values. The key of item I is found at index | |
1302 | 2 * I, the value is found at index 2 * I + 1. | |
1303 | This is gc_marked specially if the table is weak. */ | |
1304 | Lisp_Object key_and_value; | |
1305 | ||
6c661ec9 SM |
1306 | /* Next weak hash table if this is a weak hash table. The head |
1307 | of the list is in weak_hash_tables. */ | |
1308 | struct Lisp_Hash_Table *next_weak; | |
1309 | ||
5010d3b8 | 1310 | /* C function to compare two keys. */ |
0de4bb68 PE |
1311 | int (*cmpfn) (struct Lisp_Hash_Table *, |
1312 | Lisp_Object, EMACS_UINT, | |
1313 | Lisp_Object, EMACS_UINT); | |
5010d3b8 GM |
1314 | |
1315 | /* C function to compute hash code. */ | |
0de4bb68 | 1316 | EMACS_UINT (*hashfn) (struct Lisp_Hash_Table *, Lisp_Object); |
5010d3b8 GM |
1317 | }; |
1318 | ||
1319 | ||
1320 | #define XHASH_TABLE(OBJ) \ | |
b263a6b0 | 1321 | ((struct Lisp_Hash_Table *) XUNTAG (OBJ, Lisp_Vectorlike)) |
5010d3b8 GM |
1322 | |
1323 | #define XSET_HASH_TABLE(VAR, PTR) \ | |
1324 | (XSETPSEUDOVECTOR (VAR, PTR, PVEC_HASH_TABLE)) | |
1325 | ||
1326 | #define HASH_TABLE_P(OBJ) PSEUDOVECTORP (OBJ, PVEC_HASH_TABLE) | |
5010d3b8 | 1327 | |
c8a39089 KS |
1328 | #define CHECK_HASH_TABLE(x) \ |
1329 | CHECK_TYPE (HASH_TABLE_P (x), Qhash_table_p, x) | |
5010d3b8 | 1330 | |
141788b5 SM |
1331 | /* Value is the key part of entry IDX in hash table H. */ |
1332 | ||
915b2a6a | 1333 | #define HASH_KEY(H, IDX) AREF ((H)->key_and_value, 2 * (IDX)) |
141788b5 SM |
1334 | |
1335 | /* Value is the value part of entry IDX in hash table H. */ | |
1336 | ||
915b2a6a | 1337 | #define HASH_VALUE(H, IDX) AREF ((H)->key_and_value, 2 * (IDX) + 1) |
141788b5 SM |
1338 | |
1339 | /* Value is the index of the next entry following the one at IDX | |
1340 | in hash table H. */ | |
1341 | ||
915b2a6a | 1342 | #define HASH_NEXT(H, IDX) AREF ((H)->next, (IDX)) |
141788b5 SM |
1343 | |
1344 | /* Value is the hash code computed for entry IDX in hash table H. */ | |
1345 | ||
915b2a6a | 1346 | #define HASH_HASH(H, IDX) AREF ((H)->hash, (IDX)) |
141788b5 SM |
1347 | |
1348 | /* Value is the index of the element in hash table H that is the | |
1349 | start of the collision list at index IDX in the index vector of H. */ | |
1350 | ||
915b2a6a | 1351 | #define HASH_INDEX(H, IDX) AREF ((H)->index, (IDX)) |
141788b5 SM |
1352 | |
1353 | /* Value is the size of hash table H. */ | |
1354 | ||
77b37c05 | 1355 | #define HASH_TABLE_SIZE(H) ASIZE ((H)->next) |
141788b5 | 1356 | |
5010d3b8 GM |
1357 | /* Default size for hash tables if not specified. */ |
1358 | ||
1359 | #define DEFAULT_HASH_SIZE 65 | |
1360 | ||
1361 | /* Default threshold specifying when to resize a hash table. The | |
1362 | value gives the ratio of current entries in the hash table and the | |
1363 | size of the hash table. */ | |
1364 | ||
1365 | #define DEFAULT_REHASH_THRESHOLD 0.8 | |
1366 | ||
1367 | /* Default factor by which to increase the size of a hash table. */ | |
1368 | ||
1369 | #define DEFAULT_REHASH_SIZE 1.5 | |
1370 | ||
ee4c9ce4 | 1371 | \f |
7c06ac2b RS |
1372 | /* These structures are used for various misc types. */ |
1373 | ||
67ee9f6e SM |
1374 | struct Lisp_Misc_Any /* Supertype of all Misc types. */ |
1375 | { | |
a6fc3b5c | 1376 | ENUM_BF (Lisp_Misc_Type) type : 16; /* = Lisp_Misc_??? */ |
67ee9f6e SM |
1377 | unsigned gcmarkbit : 1; |
1378 | int spacer : 15; | |
1379 | }; | |
1380 | ||
3cfe6dfd | 1381 | struct Lisp_Marker |
308e97d0 | 1382 | { |
a6fc3b5c | 1383 | ENUM_BF (Lisp_Misc_Type) type : 16; /* = Lisp_Misc_Marker */ |
a84f89d5 | 1384 | unsigned gcmarkbit : 1; |
9bb13d08 KH |
1385 | int spacer : 13; |
1386 | /* This flag is temporarily used in the functions | |
1387 | decode/encode_coding_object to record that the marker position | |
1388 | must be adjusted after the conversion. */ | |
1389 | unsigned int need_adjustment : 1; | |
308e97d0 RS |
1390 | /* 1 means normal insertion at the marker's position |
1391 | leaves the marker after the inserted text. */ | |
1392 | unsigned int insertion_type : 1; | |
b9466edb SM |
1393 | /* This is the buffer that the marker points into, or 0 if it points nowhere. |
1394 | Note: a chain of markers can contain markers pointing into different | |
1395 | buffers (the chain is per buffer_text rather than per buffer, so it's | |
1396 | shared between indirect buffers). */ | |
1397 | /* This is used for (other than NULL-checking): | |
1398 | - Fmarker_buffer | |
1399 | - Fset_marker: check eq(oldbuf, newbuf) to avoid unchain+rechain. | |
1400 | - unchain_marker: to find the list from which to unchain. | |
ce5b453a | 1401 | - Fkill_buffer: to only unchain the markers of current indirect buffer. |
b9466edb | 1402 | */ |
308e97d0 | 1403 | struct buffer *buffer; |
4ed24bf3 RS |
1404 | |
1405 | /* The remaining fields are meaningless in a marker that | |
1406 | does not point anywhere. */ | |
1407 | ||
1408 | /* For markers that point somewhere, | |
1409 | this is used to chain of all the markers in a given buffer. */ | |
d6aa1876 SM |
1410 | /* We could remove it and use an array in buffer_text instead. |
1411 | That would also allow to preserve it ordered. */ | |
c0ac2f4a | 1412 | struct Lisp_Marker *next; |
4ed24bf3 | 1413 | /* This is the char position where the marker points. */ |
d311d28c | 1414 | ptrdiff_t charpos; |
ce5b453a SM |
1415 | /* This is the byte position. |
1416 | It's mostly used as a charpos<->bytepos cache (i.e. it's not directly | |
1417 | used to implement the functionality of markers, but rather to (ab)use | |
1418 | markers as a cache for char<->byte mappings). */ | |
d311d28c | 1419 | ptrdiff_t bytepos; |
308e97d0 | 1420 | }; |
3cfe6dfd | 1421 | |
ee4c9ce4 KH |
1422 | /* Forwarding pointer to an int variable. |
1423 | This is allowed only in the value cell of a symbol, | |
1424 | and it means that the symbol's value really lives in the | |
1425 | specified int variable. */ | |
1426 | struct Lisp_Intfwd | |
84d1833e | 1427 | { |
ce5b453a | 1428 | enum Lisp_Fwd_Type type; /* = Lisp_Fwd_Int */ |
31ade731 | 1429 | EMACS_INT *intvar; |
ee4c9ce4 KH |
1430 | }; |
1431 | ||
1432 | /* Boolean forwarding pointer to an int variable. | |
1433 | This is like Lisp_Intfwd except that the ostensible | |
1434 | "value" of the symbol is t if the int variable is nonzero, | |
1435 | nil if it is zero. */ | |
1436 | struct Lisp_Boolfwd | |
1437 | { | |
ce5b453a | 1438 | enum Lisp_Fwd_Type type; /* = Lisp_Fwd_Bool */ |
ee4c9ce4 KH |
1439 | int *boolvar; |
1440 | }; | |
1441 | ||
1442 | /* Forwarding pointer to a Lisp_Object variable. | |
1443 | This is allowed only in the value cell of a symbol, | |
1444 | and it means that the symbol's value really lives in the | |
1445 | specified variable. */ | |
1446 | struct Lisp_Objfwd | |
1447 | { | |
ce5b453a | 1448 | enum Lisp_Fwd_Type type; /* = Lisp_Fwd_Obj */ |
ee4c9ce4 KH |
1449 | Lisp_Object *objvar; |
1450 | }; | |
1451 | ||
1452 | /* Like Lisp_Objfwd except that value lives in a slot in the | |
1453 | current buffer. Value is byte index of slot within buffer. */ | |
1454 | struct Lisp_Buffer_Objfwd | |
1455 | { | |
ce5b453a | 1456 | enum Lisp_Fwd_Type type; /* = Lisp_Fwd_Buffer_Obj */ |
ee4c9ce4 | 1457 | int offset; |
ce5b453a | 1458 | Lisp_Object slottype; /* Qnil, Lisp_Int, Lisp_Symbol, or Lisp_String. */ |
84d1833e KH |
1459 | }; |
1460 | ||
65d0110b RS |
1461 | /* struct Lisp_Buffer_Local_Value is used in a symbol value cell when |
1462 | the symbol has buffer-local or frame-local bindings. (Exception: | |
1463 | some buffer-local variables are built-in, with their values stored | |
1464 | in the buffer structure itself. They are handled differently, | |
1465 | using struct Lisp_Buffer_Objfwd.) | |
1466 | ||
1467 | The `realvalue' slot holds the variable's current value, or a | |
1468 | forwarding pointer to where that value is kept. This value is the | |
1469 | one that corresponds to the loaded binding. To read or set the | |
1470 | variable, you must first make sure the right binding is loaded; | |
1471 | then you can access the value in (or through) `realvalue'. | |
e2c0561e | 1472 | |
65d0110b RS |
1473 | `buffer' and `frame' are the buffer and frame for which the loaded |
1474 | binding was found. If those have changed, to make sure the right | |
1475 | binding is loaded it is necessary to find which binding goes with | |
1476 | the current buffer and selected frame, then load it. To load it, | |
1477 | first unload the previous binding, then copy the value of the new | |
1478 | binding into `realvalue' (or through it). Also update | |
1479 | LOADED-BINDING to point to the newly loaded binding. | |
7d65f1c2 | 1480 | |
78edd3b7 JB |
1481 | `local_if_set' indicates that merely setting the variable creates a |
1482 | local binding for the current buffer. Otherwise the latter, setting | |
1483 | the variable does not do that; only make-local-variable does that. */ | |
65d0110b | 1484 | |
7d65f1c2 KH |
1485 | struct Lisp_Buffer_Local_Value |
1486 | { | |
67ee9f6e SM |
1487 | /* 1 means that merely setting the variable creates a local |
1488 | binding for the current buffer */ | |
1489 | unsigned int local_if_set : 1; | |
ce5b453a SM |
1490 | /* 1 means this variable can have frame-local bindings, otherwise, it is |
1491 | can have buffer-local bindings. The two cannot be combined. */ | |
1492 | unsigned int frame_local : 1; | |
1493 | /* 1 means that the binding now loaded was found. | |
1494 | Presumably equivalent to (defcell!=valcell) */ | |
1495 | unsigned int found : 1; | |
1496 | /* If non-NULL, a forwarding to the C var where it should also be set. */ | |
1497 | union Lisp_Fwd *fwd; /* Should never be (Buffer|Kboard)_Objfwd. */ | |
1498 | /* The buffer or frame for which the loaded binding was found. */ | |
1499 | Lisp_Object where; | |
1500 | /* A cons cell that holds the default value. It has the form | |
1501 | (SYMBOL . DEFAULT-VALUE). */ | |
1502 | Lisp_Object defcell; | |
1503 | /* The cons cell from `where's parameter alist. | |
1504 | It always has the form (SYMBOL . VALUE) | |
1505 | Note that if `forward' is non-nil, VALUE may be out of date. | |
1506 | Also if the currently loaded binding is the default binding, then | |
1507 | this is `eq'ual to defcell. */ | |
1508 | Lisp_Object valcell; | |
7d65f1c2 KH |
1509 | }; |
1510 | ||
ce5b453a SM |
1511 | #define BLV_FOUND(blv) \ |
1512 | (eassert ((blv)->found == !EQ ((blv)->defcell, (blv)->valcell)), (blv)->found) | |
1513 | #define SET_BLV_FOUND(blv, v) \ | |
1514 | (eassert ((v) == !EQ ((blv)->defcell, (blv)->valcell)), (blv)->found = (v)) | |
1515 | ||
1516 | #define BLV_VALUE(blv) (XCDR ((blv)->valcell)) | |
1517 | #define SET_BLV_VALUE(blv, v) (XSETCDR ((blv)->valcell, v)) | |
1518 | ||
5f6bf5fe | 1519 | /* START and END are markers in the overlay's buffer, and |
ce7d8eec KH |
1520 | PLIST is the overlay's property list. */ |
1521 | struct Lisp_Overlay | |
ce5b453a SM |
1522 | /* An overlay's real data content is: |
1523 | - plist | |
1524 | - buffer | |
1525 | - insertion type of both ends | |
1526 | - start & start_byte | |
1527 | - end & end_byte | |
1528 | - next (singly linked list of overlays). | |
1529 | - start_next and end_next (singly linked list of markers). | |
1530 | I.e. 9words plus 2 bits, 3words of which are for external linked lists. | |
1531 | */ | |
ce7d8eec | 1532 | { |
a6fc3b5c | 1533 | ENUM_BF (Lisp_Misc_Type) type : 16; /* = Lisp_Misc_Overlay */ |
a84f89d5 SM |
1534 | unsigned gcmarkbit : 1; |
1535 | int spacer : 15; | |
b01ecbc6 | 1536 | struct Lisp_Overlay *next; |
ce7d8eec KH |
1537 | Lisp_Object start, end, plist; |
1538 | }; | |
5bfac5a9 | 1539 | |
f334de0e | 1540 | /* Like Lisp_Objfwd except that value lives in a slot in the |
32462604 KH |
1541 | current kboard. */ |
1542 | struct Lisp_Kboard_Objfwd | |
f334de0e | 1543 | { |
ce5b453a | 1544 | enum Lisp_Fwd_Type type; /* = Lisp_Fwd_Kboard_Obj */ |
f334de0e KH |
1545 | int offset; |
1546 | }; | |
1547 | ||
222151aa RS |
1548 | /* Hold a C pointer for later use. |
1549 | This type of object is used in the arg to record_unwind_protect. */ | |
1550 | struct Lisp_Save_Value | |
1551 | { | |
a6fc3b5c | 1552 | ENUM_BF (Lisp_Misc_Type) type : 16; /* = Lisp_Misc_Save_Value */ |
a84f89d5 | 1553 | unsigned gcmarkbit : 1; |
5f5d6c62 KS |
1554 | int spacer : 14; |
1555 | /* If DOGC is set, POINTER is the address of a memory | |
1556 | area containing INTEGER potential Lisp_Objects. */ | |
1557 | unsigned int dogc : 1; | |
222151aa | 1558 | void *pointer; |
9c4c5f81 | 1559 | ptrdiff_t integer; |
222151aa RS |
1560 | }; |
1561 | ||
5bfac5a9 | 1562 | |
6b61353c KH |
1563 | /* A miscellaneous object, when it's on the free list. */ |
1564 | struct Lisp_Free | |
1565 | { | |
a6fc3b5c | 1566 | ENUM_BF (Lisp_Misc_Type) type : 16; /* = Lisp_Misc_Free */ |
6b61353c KH |
1567 | unsigned gcmarkbit : 1; |
1568 | int spacer : 15; | |
1569 | union Lisp_Misc *chain; | |
6b61353c KH |
1570 | }; |
1571 | ||
a7aa28f6 RS |
1572 | /* To get the type field of a union Lisp_Misc, use XMISCTYPE. |
1573 | It uses one of these struct subtypes to get the type field. */ | |
1574 | ||
84d1833e KH |
1575 | union Lisp_Misc |
1576 | { | |
67ee9f6e | 1577 | struct Lisp_Misc_Any u_any; /* Supertype of all Misc types. */ |
d55c12ed AS |
1578 | struct Lisp_Free u_free; |
1579 | struct Lisp_Marker u_marker; | |
1580 | struct Lisp_Overlay u_overlay; | |
1581 | struct Lisp_Save_Value u_save_value; | |
ce5b453a SM |
1582 | }; |
1583 | ||
1584 | union Lisp_Fwd | |
1585 | { | |
d55c12ed AS |
1586 | struct Lisp_Intfwd u_intfwd; |
1587 | struct Lisp_Boolfwd u_boolfwd; | |
1588 | struct Lisp_Objfwd u_objfwd; | |
1589 | struct Lisp_Buffer_Objfwd u_buffer_objfwd; | |
1590 | struct Lisp_Kboard_Objfwd u_kboard_objfwd; | |
84d1833e | 1591 | }; |
7c06ac2b | 1592 | \f |
cc94f3b2 | 1593 | /* Lisp floating point type */ |
3cfe6dfd JB |
1594 | struct Lisp_Float |
1595 | { | |
3a623fee AS |
1596 | union |
1597 | { | |
8f34f70a | 1598 | #ifdef HIDE_LISP_IMPLEMENTATION |
3a623fee | 1599 | double data_; |
8f34f70a | 1600 | #else |
3a623fee | 1601 | double data; |
8f34f70a | 1602 | #endif |
3a623fee AS |
1603 | struct Lisp_Float *chain; |
1604 | } u; | |
3cfe6dfd | 1605 | }; |
8f34f70a KR |
1606 | |
1607 | #ifdef HIDE_LISP_IMPLEMENTATION | |
52766425 | 1608 | #define XFLOAT_DATA(f) (0 ? XFLOAT (f)->u.data_ : XFLOAT (f)->u.data_) |
8f34f70a | 1609 | #else |
52766425 | 1610 | #define XFLOAT_DATA(f) (0 ? XFLOAT (f)->u.data : XFLOAT (f)->u.data) |
f601cdf3 KR |
1611 | /* This should be used only in alloc.c, which always disables |
1612 | HIDE_LISP_IMPLEMENTATION. */ | |
1613 | #define XFLOAT_INIT(f,n) (XFLOAT (f)->u.data = (n)) | |
8f34f70a | 1614 | #endif |
3cfe6dfd JB |
1615 | |
1616 | /* A character, declared with the following typedef, is a member | |
99a3d506 | 1617 | of some character set associated with the current buffer. */ |
b2ba7b00 RS |
1618 | #ifndef _UCHAR_T /* Protect against something in ctab.h on AIX. */ |
1619 | #define _UCHAR_T | |
3cfe6dfd | 1620 | typedef unsigned char UCHAR; |
b2ba7b00 | 1621 | #endif |
3cfe6dfd JB |
1622 | |
1623 | /* Meanings of slots in a Lisp_Compiled: */ | |
1624 | ||
1625 | #define COMPILED_ARGLIST 0 | |
1626 | #define COMPILED_BYTECODE 1 | |
1627 | #define COMPILED_CONSTANTS 2 | |
1628 | #define COMPILED_STACK_DEPTH 3 | |
1629 | #define COMPILED_DOC_STRING 4 | |
1630 | #define COMPILED_INTERACTIVE 5 | |
88dbfee5 | 1631 | |
d03f79ef JB |
1632 | /* Flag bits in a character. These also get used in termhooks.h. |
1633 | Richard Stallman <rms@gnu.ai.mit.edu> thinks that MULE | |
7c06ac2b RS |
1634 | (MUlti-Lingual Emacs) might need 22 bits for the character value |
1635 | itself, so we probably shouldn't use any bits lower than 0x0400000. */ | |
1636 | #define CHAR_ALT (0x0400000) | |
1637 | #define CHAR_SUPER (0x0800000) | |
1638 | #define CHAR_HYPER (0x1000000) | |
1639 | #define CHAR_SHIFT (0x2000000) | |
1640 | #define CHAR_CTL (0x4000000) | |
1641 | #define CHAR_META (0x8000000) | |
703f2808 | 1642 | |
048151c1 KH |
1643 | #define CHAR_MODIFIER_MASK \ |
1644 | (CHAR_ALT | CHAR_SUPER | CHAR_HYPER | CHAR_SHIFT | CHAR_CTL | CHAR_META) | |
1645 | ||
1646 | ||
1842abb2 | 1647 | /* Actually, the current Emacs uses 22 bits for the character value |
6b768554 | 1648 | itself. */ |
13ac3ac9 | 1649 | #define CHARACTERBITS 22 |
6b768554 | 1650 | |
703f2808 | 1651 | \f |
ec9ed378 KS |
1652 | /* The glyph datatype, used to represent characters on the display. |
1653 | It consists of a char code and a face id. */ | |
1654 | ||
1655 | typedef struct { | |
1656 | int ch; | |
1657 | int face_id; | |
1658 | } GLYPH; | |
703f2808 JB |
1659 | |
1660 | /* Return a glyph's character code. */ | |
ec9ed378 | 1661 | #define GLYPH_CHAR(glyph) ((glyph).ch) |
703f2808 JB |
1662 | |
1663 | /* Return a glyph's face ID. */ | |
ec9ed378 | 1664 | #define GLYPH_FACE(glyph) ((glyph).face_id) |
49b0dd75 | 1665 | |
ec9ed378 KS |
1666 | #define SET_GLYPH_CHAR(glyph, char) ((glyph).ch = (char)) |
1667 | #define SET_GLYPH_FACE(glyph, face) ((glyph).face_id = (face)) | |
1668 | #define SET_GLYPH(glyph, char, face) ((glyph).ch = (char), (glyph).face_id = (face)) | |
703f2808 | 1669 | |
e0f24100 | 1670 | /* Return 1 if GLYPH contains valid character code. */ |
2638320e | 1671 | #define GLYPH_CHAR_VALID_P(glyph) CHAR_VALID_P (GLYPH_CHAR (glyph)) |
ec9ed378 KS |
1672 | |
1673 | ||
1674 | /* Glyph Code from a display vector may either be an integer which | |
1675 | encodes a char code in the lower CHARACTERBITS bits and a (very small) | |
1676 | face-id in the upper bits, or it may be a cons (CHAR . FACE-ID). */ | |
1677 | ||
d311d28c PE |
1678 | #define GLYPH_CODE_P(gc) \ |
1679 | (CONSP (gc) \ | |
1680 | ? (CHARACTERP (XCAR (gc)) \ | |
1681 | && RANGED_INTEGERP (0, XCDR (gc), MAX_FACE_ID)) \ | |
1682 | : (RANGED_INTEGERP \ | |
1683 | (0, gc, \ | |
1684 | (MAX_FACE_ID < TYPE_MAXIMUM (EMACS_INT) >> CHARACTERBITS \ | |
1685 | ? ((EMACS_INT) MAX_FACE_ID << CHARACTERBITS) | MAX_CHAR \ | |
1686 | : TYPE_MAXIMUM (EMACS_INT))))) | |
ec9ed378 | 1687 | |
d311d28c | 1688 | /* The following are valid only if GLYPH_CODE_P (gc). */ |
ec9ed378 | 1689 | |
d311d28c PE |
1690 | #define GLYPH_CODE_CHAR(gc) \ |
1691 | (CONSP (gc) ? XINT (XCAR (gc)) : XINT (gc) & ((1 << CHARACTERBITS) - 1)) | |
ec9ed378 | 1692 | |
d311d28c PE |
1693 | #define GLYPH_CODE_FACE(gc) \ |
1694 | (CONSP (gc) ? XINT (XCDR (gc)) : XINT (gc) >> CHARACTERBITS) | |
ec9ed378 | 1695 | |
ec9ed378 KS |
1696 | #define SET_GLYPH_FROM_GLYPH_CODE(glyph, gc) \ |
1697 | do \ | |
1698 | { \ | |
1699 | if (CONSP (gc)) \ | |
1700 | SET_GLYPH (glyph, XINT (XCAR (gc)), XINT (XCDR (gc))); \ | |
1701 | else \ | |
1702 | SET_GLYPH (glyph, (XINT (gc) & ((1 << CHARACTERBITS)-1)), \ | |
1703 | (XINT (gc) >> CHARACTERBITS)); \ | |
1704 | } \ | |
1705 | while (0) | |
b96656ce | 1706 | |
4606cc9d RS |
1707 | /* The ID of the mode line highlighting face. */ |
1708 | #define GLYPH_MODE_LINE_FACE 1 | |
3cfe6dfd | 1709 | \f |
7ea692f6 EZ |
1710 | /* Structure to hold mouse highlight data. This is here because other |
1711 | header files need it for defining struct x_output etc. */ | |
1712 | typedef struct { | |
1713 | /* These variables describe the range of text currently shown in its | |
1714 | mouse-face, together with the window they apply to. As long as | |
1715 | the mouse stays within this range, we need not redraw anything on | |
1716 | its account. Rows and columns are glyph matrix positions in | |
1717 | MOUSE_FACE_WINDOW. */ | |
1718 | int mouse_face_beg_row, mouse_face_beg_col; | |
1719 | int mouse_face_beg_x, mouse_face_beg_y; | |
1720 | int mouse_face_end_row, mouse_face_end_col; | |
1721 | int mouse_face_end_x, mouse_face_end_y; | |
1722 | int mouse_face_past_end; | |
1723 | Lisp_Object mouse_face_window; | |
1724 | int mouse_face_face_id; | |
1725 | Lisp_Object mouse_face_overlay; | |
1726 | ||
1727 | /* 1 if a mouse motion event came and we didn't handle it right away because | |
1728 | gc was in progress. */ | |
1729 | int mouse_face_deferred_gc; | |
1730 | ||
1731 | /* FRAME and X, Y position of mouse when last checked for | |
1732 | highlighting. X and Y can be negative or out of range for the frame. */ | |
1733 | struct frame *mouse_face_mouse_frame; | |
1734 | int mouse_face_mouse_x, mouse_face_mouse_y; | |
1735 | ||
1736 | /* Nonzero means defer mouse-motion highlighting. */ | |
1737 | int mouse_face_defer; | |
1738 | ||
1739 | /* Nonzero means that the mouse highlight should not be shown. */ | |
1740 | int mouse_face_hidden; | |
1741 | ||
1742 | int mouse_face_image_state; | |
1743 | } Mouse_HLInfo; | |
1744 | \f | |
3cfe6dfd JB |
1745 | /* Data type checking */ |
1746 | ||
3c7a4fa3 | 1747 | #define NILP(x) EQ (x, Qnil) |
3cfe6dfd | 1748 | |
c5af3bb9 | 1749 | #define NUMBERP(x) (INTEGERP (x) || FLOATP (x)) |
a4a9f09f | 1750 | #define NATNUMP(x) (INTEGERP (x) && XINT (x) >= 0) |
4746118a | 1751 | |
ca9ce8f2 PE |
1752 | #define RANGED_INTEGERP(lo, x, hi) \ |
1753 | (INTEGERP (x) && (lo) <= XINT (x) && XINT (x) <= (hi)) | |
1754 | #define TYPE_RANGED_INTEGERP(type, x) \ | |
d311d28c PE |
1755 | (TYPE_SIGNED (type) \ |
1756 | ? RANGED_INTEGERP (TYPE_MINIMUM (type), x, TYPE_MAXIMUM (type)) \ | |
1757 | : RANGED_INTEGERP (0, x, TYPE_MAXIMUM (type))) | |
ca9ce8f2 | 1758 | |
2de9f71c | 1759 | #define INTEGERP(x) (LISP_INT_TAG_P (XTYPE ((x)))) |
edfa9106 | 1760 | #define SYMBOLP(x) (XTYPE ((x)) == Lisp_Symbol) |
84d1833e | 1761 | #define MISCP(x) (XTYPE ((x)) == Lisp_Misc) |
b5088f80 | 1762 | #define VECTORLIKEP(x) (XTYPE ((x)) == Lisp_Vectorlike) |
edfa9106 | 1763 | #define STRINGP(x) (XTYPE ((x)) == Lisp_String) |
3cfe6dfd | 1764 | #define CONSP(x) (XTYPE ((x)) == Lisp_Cons) |
7c06ac2b | 1765 | |
edfa9106 | 1766 | #define FLOATP(x) (XTYPE ((x)) == Lisp_Float) |
77b37c05 | 1767 | #define VECTORP(x) (VECTORLIKEP (x) && !(ASIZE (x) & PSEUDOVECTOR_FLAG)) |
a7aa28f6 | 1768 | #define OVERLAYP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Overlay) |
a7aa28f6 | 1769 | #define MARKERP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Marker) |
19fa82b9 | 1770 | #define SAVE_VALUEP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Save_Value) |
edfa9106 | 1771 | |
ce5b453a SM |
1772 | #define INTFWDP(x) (XFWDTYPE (x) == Lisp_Fwd_Int) |
1773 | #define BOOLFWDP(x) (XFWDTYPE (x) == Lisp_Fwd_Bool) | |
1774 | #define OBJFWDP(x) (XFWDTYPE (x) == Lisp_Fwd_Obj) | |
1775 | #define BUFFER_OBJFWDP(x) (XFWDTYPE (x) == Lisp_Fwd_Buffer_Obj) | |
1776 | #define KBOARD_OBJFWDP(x) (XFWDTYPE (x) == Lisp_Fwd_Kboard_Obj) | |
7c06ac2b | 1777 | |
aa0b0087 PE |
1778 | /* True if object X is a pseudovector whose code is CODE. The cast to struct |
1779 | vectorlike_header * avoids aliasing issues. */ | |
7c06ac2b | 1780 | #define PSEUDOVECTORP(x, code) \ |
b102ceb1 | 1781 | TYPED_PSEUDOVECTORP(x, vectorlike_header, code) |
eab3844f PE |
1782 | |
1783 | /* True if object X, with internal type struct T *, is a pseudovector whose | |
1784 | code is CODE. */ | |
1785 | #define TYPED_PSEUDOVECTORP(x, t, code) \ | |
7c06ac2b | 1786 | (VECTORLIKEP (x) \ |
b263a6b0 | 1787 | && (((((struct t *) XUNTAG (x, Lisp_Vectorlike))->size \ |
eab3844f | 1788 | & (PSEUDOVECTOR_FLAG | (code)))) \ |
7c06ac2b RS |
1789 | == (PSEUDOVECTOR_FLAG | (code)))) |
1790 | ||
7c06ac2b RS |
1791 | /* Test for specific pseudovector types. */ |
1792 | #define WINDOW_CONFIGURATIONP(x) PSEUDOVECTORP (x, PVEC_WINDOW_CONFIGURATION) | |
7c06ac2b | 1793 | #define PROCESSP(x) PSEUDOVECTORP (x, PVEC_PROCESS) |
7c06ac2b | 1794 | #define WINDOWP(x) PSEUDOVECTORP (x, PVEC_WINDOW) |
49e49fb5 | 1795 | #define TERMINALP(x) PSEUDOVECTORP (x, PVEC_TERMINAL) |
aa0b0087 | 1796 | /* SUBRP is special since Lisp_Subr lacks struct vectorlike_header. */ |
eab3844f | 1797 | #define SUBRP(x) TYPED_PSEUDOVECTORP (x, Lisp_Subr, PVEC_SUBR) |
7c06ac2b | 1798 | #define COMPILEDP(x) PSEUDOVECTORP (x, PVEC_COMPILED) |
99a3d506 | 1799 | #define BUFFERP(x) PSEUDOVECTORP (x, PVEC_BUFFER) |
608ff985 | 1800 | #define CHAR_TABLE_P(x) PSEUDOVECTORP (x, PVEC_CHAR_TABLE) |
1842abb2 | 1801 | #define SUB_CHAR_TABLE_P(x) PSEUDOVECTORP (x, PVEC_SUB_CHAR_TABLE) |
608ff985 | 1802 | #define BOOL_VECTOR_P(x) PSEUDOVECTORP (x, PVEC_BOOL_VECTOR) |
7c06ac2b | 1803 | #define FRAMEP(x) PSEUDOVECTORP (x, PVEC_FRAME) |
ea724a01 | 1804 | |
6b61353c KH |
1805 | /* Test for image (image . spec) */ |
1806 | #define IMAGEP(x) (CONSP (x) && EQ (XCAR (x), Qimage)) | |
1807 | ||
c8a39089 KS |
1808 | /* Array types. */ |
1809 | ||
1810 | #define ARRAYP(x) \ | |
1811 | (VECTORP (x) || STRINGP (x) || CHAR_TABLE_P (x) || BOOL_VECTOR_P (x)) | |
7c06ac2b | 1812 | \f |
874cc80e | 1813 | #define CHECK_LIST(x) \ |
c8a39089 KS |
1814 | CHECK_TYPE (CONSP (x) || NILP (x), Qlistp, x) |
1815 | ||
1816 | #define CHECK_LIST_CONS(x, y) \ | |
1817 | CHECK_TYPE (CONSP (x), Qlistp, y) | |
1818 | ||
1819 | #define CHECK_LIST_END(x, y) \ | |
1820 | CHECK_TYPE (NILP (x), Qlistp, y) | |
3cfe6dfd | 1821 | |
874cc80e | 1822 | #define CHECK_STRING(x) \ |
c8a39089 | 1823 | CHECK_TYPE (STRINGP (x), Qstringp, x) |
3cfe6dfd | 1824 | |
57ddb5d0 | 1825 | #define CHECK_STRING_CAR(x) \ |
c8a39089 | 1826 | CHECK_TYPE (STRINGP (XCAR (x)), Qstringp, XCAR (x)) |
57ddb5d0 | 1827 | |
874cc80e | 1828 | #define CHECK_CONS(x) \ |
c8a39089 | 1829 | CHECK_TYPE (CONSP (x), Qconsp, x) |
3cfe6dfd | 1830 | |
874cc80e | 1831 | #define CHECK_SYMBOL(x) \ |
c8a39089 | 1832 | CHECK_TYPE (SYMBOLP (x), Qsymbolp, x) |
3cfe6dfd | 1833 | |
874cc80e | 1834 | #define CHECK_CHAR_TABLE(x) \ |
c8a39089 | 1835 | CHECK_TYPE (CHAR_TABLE_P (x), Qchar_table_p, x) |
608ff985 | 1836 | |
874cc80e | 1837 | #define CHECK_VECTOR(x) \ |
c8a39089 | 1838 | CHECK_TYPE (VECTORP (x), Qvectorp, x) |
3cfe6dfd | 1839 | |
c8a39089 KS |
1840 | #define CHECK_VECTOR_OR_STRING(x) \ |
1841 | CHECK_TYPE (VECTORP (x) || STRINGP (x), Qarrayp, x) | |
1842 | ||
78edd3b7 | 1843 | #define CHECK_ARRAY(x, Qxxxp) \ |
c8a39089 KS |
1844 | CHECK_TYPE (ARRAYP (x), Qxxxp, x) |
1845 | ||
1846 | #define CHECK_VECTOR_OR_CHAR_TABLE(x) \ | |
1847 | CHECK_TYPE (VECTORP (x) || CHAR_TABLE_P (x), Qvector_or_char_table_p, x) | |
7f73dc9d | 1848 | |
874cc80e | 1849 | #define CHECK_BUFFER(x) \ |
c8a39089 | 1850 | CHECK_TYPE (BUFFERP (x), Qbufferp, x) |
3cfe6dfd | 1851 | |
874cc80e | 1852 | #define CHECK_WINDOW(x) \ |
c8a39089 KS |
1853 | CHECK_TYPE (WINDOWP (x), Qwindowp, x) |
1854 | ||
1855 | #define CHECK_WINDOW_CONFIGURATION(x) \ | |
1856 | CHECK_TYPE (WINDOW_CONFIGURATIONP (x), Qwindow_configuration_p, x) | |
3cfe6dfd | 1857 | |
03273ec5 | 1858 | /* This macro rejects windows on the interior of the window tree as |
e98227af | 1859 | "dead", which is what we want; this is an argument-checking macro, and |
03273ec5 JB |
1860 | the user should never get access to interior windows. |
1861 | ||
e0f24100 | 1862 | A window of any sort, leaf or interior, is dead if the buffer, |
03273ec5 JB |
1863 | vchild, and hchild members are all nil. */ |
1864 | ||
c8a39089 KS |
1865 | #define CHECK_LIVE_WINDOW(x) \ |
1866 | CHECK_TYPE (WINDOWP (x) && !NILP (XWINDOW (x)->buffer), Qwindow_live_p, x) | |
03273ec5 | 1867 | |
874cc80e | 1868 | #define CHECK_PROCESS(x) \ |
c8a39089 KS |
1869 | CHECK_TYPE (PROCESSP (x), Qprocessp, x) |
1870 | ||
1871 | #define CHECK_SUBR(x) \ | |
1872 | CHECK_TYPE (SUBRP (x), Qsubrp, x) | |
3cfe6dfd | 1873 | |
874cc80e | 1874 | #define CHECK_NUMBER(x) \ |
c8a39089 | 1875 | CHECK_TYPE (INTEGERP (x), Qintegerp, x) |
3cfe6dfd | 1876 | |
874cc80e | 1877 | #define CHECK_NATNUM(x) \ |
c8a39089 | 1878 | CHECK_TYPE (NATNUMP (x), Qwholenump, x) |
3cfe6dfd | 1879 | |
d311d28c PE |
1880 | #define CHECK_RANGED_INTEGER(lo, x, hi) \ |
1881 | do { \ | |
1882 | CHECK_NUMBER (x); \ | |
1883 | if (! ((lo) <= XINT (x) && XINT (x) <= (hi))) \ | |
1884 | args_out_of_range_3 \ | |
1885 | (x, \ | |
1886 | make_number ((lo) < 0 && (lo) < MOST_NEGATIVE_FIXNUM \ | |
1887 | ? MOST_NEGATIVE_FIXNUM \ | |
1888 | : (lo)), \ | |
1889 | make_number (min (hi, MOST_POSITIVE_FIXNUM))); \ | |
1890 | } while (0) | |
1891 | #define CHECK_TYPE_RANGED_INTEGER(type, x) \ | |
1892 | do { \ | |
1893 | if (TYPE_SIGNED (type)) \ | |
1894 | CHECK_RANGED_INTEGER (TYPE_MINIMUM (type), x, TYPE_MAXIMUM (type)); \ | |
1895 | else \ | |
1896 | CHECK_RANGED_INTEGER (0, x, TYPE_MAXIMUM (type)); \ | |
1897 | } while (0) | |
1898 | ||
874cc80e | 1899 | #define CHECK_MARKER(x) \ |
c8a39089 | 1900 | CHECK_TYPE (MARKERP (x), Qmarkerp, x) |
3cfe6dfd | 1901 | |
874cc80e | 1902 | #define CHECK_NUMBER_COERCE_MARKER(x) \ |
221f4ef3 | 1903 | do { if (MARKERP ((x))) XSETFASTINT (x, marker_position (x)); \ |
c8a39089 | 1904 | else CHECK_TYPE (INTEGERP (x), Qinteger_or_marker_p, x); } while (0) |
3cfe6dfd | 1905 | |
3cfe6dfd JB |
1906 | #define XFLOATINT(n) extract_float((n)) |
1907 | ||
78edd3b7 | 1908 | #define CHECK_FLOAT(x) \ |
c8a39089 | 1909 | CHECK_TYPE (FLOATP (x), Qfloatp, x) |
3cfe6dfd | 1910 | |
78edd3b7 | 1911 | #define CHECK_NUMBER_OR_FLOAT(x) \ |
c8a39089 | 1912 | CHECK_TYPE (FLOATP (x) || INTEGERP (x), Qnumberp, x) |
3cfe6dfd | 1913 | |
874cc80e | 1914 | #define CHECK_NUMBER_OR_FLOAT_COERCE_MARKER(x) \ |
78edd3b7 | 1915 | do { if (MARKERP (x)) XSETFASTINT (x, marker_position (x)); \ |
c8a39089 | 1916 | else CHECK_TYPE (INTEGERP (x) || FLOATP (x), Qnumber_or_marker_p, x); } while (0) |
3cfe6dfd | 1917 | |
874cc80e | 1918 | #define CHECK_OVERLAY(x) \ |
c8a39089 | 1919 | CHECK_TYPE (OVERLAYP (x), Qoverlayp, x) |
20280af7 | 1920 | |
f3fbd155 KR |
1921 | /* Since we can't assign directly to the CAR or CDR fields of a cons |
1922 | cell, use these when checking that those fields contain numbers. */ | |
874cc80e | 1923 | #define CHECK_NUMBER_CAR(x) \ |
f3fbd155 KR |
1924 | do { \ |
1925 | Lisp_Object tmp = XCAR (x); \ | |
874cc80e | 1926 | CHECK_NUMBER (tmp); \ |
f3fbd155 KR |
1927 | XSETCAR ((x), tmp); \ |
1928 | } while (0) | |
1929 | ||
874cc80e | 1930 | #define CHECK_NUMBER_CDR(x) \ |
f3fbd155 KR |
1931 | do { \ |
1932 | Lisp_Object tmp = XCDR (x); \ | |
874cc80e | 1933 | CHECK_NUMBER (tmp); \ |
f3fbd155 KR |
1934 | XSETCDR ((x), tmp); \ |
1935 | } while (0) | |
1936 | ||
8f924df7 KH |
1937 | #define CHECK_NATNUM_CAR(x) \ |
1938 | do { \ | |
1939 | Lisp_Object tmp = XCAR (x); \ | |
1940 | CHECK_NATNUM (tmp); \ | |
1941 | XSETCAR ((x), tmp); \ | |
1942 | } while (0) | |
1943 | ||
1944 | #define CHECK_NATNUM_CDR(x) \ | |
1945 | do { \ | |
1946 | Lisp_Object tmp = XCDR (x); \ | |
1947 | CHECK_NATNUM (tmp); \ | |
1948 | XSETCDR ((x), tmp); \ | |
1949 | } while (0) | |
3cfe6dfd JB |
1950 | \f |
1951 | /* Define a built-in function for calling from Lisp. | |
1952 | `lname' should be the name to give the function in Lisp, | |
1953 | as a null-terminated C string. | |
1954 | `fnname' should be the name of the function in C. | |
1955 | By convention, it starts with F. | |
1956 | `sname' should be the name for the C constant structure | |
1957 | that records information on this function for internal use. | |
1958 | By convention, it should be the same as `fnname' but with S instead of F. | |
1959 | It's too bad that C macros can't compute this from `fnname'. | |
1960 | `minargs' should be a number, the minimum number of arguments allowed. | |
1961 | `maxargs' should be a number, the maximum number of arguments allowed, | |
1962 | or else MANY or UNEVALLED. | |
1963 | MANY means pass a vector of evaluated arguments, | |
1964 | in the form of an integer number-of-arguments | |
1965 | followed by the address of a vector of Lisp_Objects | |
1966 | which contains the argument values. | |
1967 | UNEVALLED means pass the list of unevaluated arguments | |
4bca9161 MC |
1968 | `intspec' says how interactive arguments are to be fetched. |
1969 | If the string starts with a `(', `intspec' is evaluated and the resulting | |
1970 | list is the list of arguments. | |
1971 | If it's a string that doesn't start with `(', the value should follow | |
1972 | the one of the doc string for `interactive'. | |
3cfe6dfd | 1973 | A null string means call interactively with no arguments. |
eab9d423 | 1974 | `doc' is documentation for the user. */ |
3cfe6dfd | 1975 | |
c451d7b1 | 1976 | /* This version of DEFUN declares a function prototype with the right |
99a3d506 | 1977 | arguments, so we can catch errors with maxargs at compile-time. */ |
a6fc3b5c EZ |
1978 | #ifdef _MSC_VER |
1979 | #define DEFUN(lname, fnname, sname, minargs, maxargs, intspec, doc) \ | |
1980 | Lisp_Object fnname DEFUN_ARGS_ ## maxargs ; \ | |
1981 | static DECL_ALIGN (struct Lisp_Subr, sname) = \ | |
1982 | { PVEC_SUBR | (sizeof (struct Lisp_Subr) / sizeof (EMACS_INT)), \ | |
1983 | { (Lisp_Object (__cdecl *)(void))fnname }, \ | |
1984 | minargs, maxargs, lname, intspec, 0}; \ | |
1985 | Lisp_Object fnname | |
1986 | #else /* not _MSC_VER */ | |
1987 | #define DEFUN(lname, fnname, sname, minargs, maxargs, intspec, doc) \ | |
1988 | Lisp_Object fnname DEFUN_ARGS_ ## maxargs ; \ | |
1989 | static DECL_ALIGN (struct Lisp_Subr, sname) = \ | |
1990 | { PVEC_SUBR, \ | |
1991 | { .a ## maxargs = fnname }, \ | |
1992 | minargs, maxargs, lname, intspec, 0}; \ | |
1993 | Lisp_Object fnname | |
1994 | #endif | |
c451d7b1 RS |
1995 | |
1996 | /* Note that the weird token-substitution semantics of ANSI C makes | |
99a3d506 | 1997 | this work for MANY and UNEVALLED. */ |
f66c7cf8 | 1998 | #define DEFUN_ARGS_MANY (ptrdiff_t, Lisp_Object *) |
c451d7b1 RS |
1999 | #define DEFUN_ARGS_UNEVALLED (Lisp_Object) |
2000 | #define DEFUN_ARGS_0 (void) | |
2001 | #define DEFUN_ARGS_1 (Lisp_Object) | |
2002 | #define DEFUN_ARGS_2 (Lisp_Object, Lisp_Object) | |
2003 | #define DEFUN_ARGS_3 (Lisp_Object, Lisp_Object, Lisp_Object) | |
2004 | #define DEFUN_ARGS_4 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object) | |
2005 | #define DEFUN_ARGS_5 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \ | |
2006 | Lisp_Object) | |
2007 | #define DEFUN_ARGS_6 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \ | |
2008 | Lisp_Object, Lisp_Object) | |
2009 | #define DEFUN_ARGS_7 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \ | |
2010 | Lisp_Object, Lisp_Object, Lisp_Object) | |
5593f7e3 KH |
2011 | #define DEFUN_ARGS_8 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \ |
2012 | Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object) | |
276680c4 | 2013 | |
78edd3b7 | 2014 | /* Non-zero if OBJ is a Lisp function. */ |
276680c4 GM |
2015 | #define FUNCTIONP(OBJ) \ |
2016 | ((CONSP (OBJ) && EQ (XCAR (OBJ), Qlambda)) \ | |
2017 | || (SYMBOLP (OBJ) && !NILP (Ffboundp (OBJ))) \ | |
2018 | || COMPILEDP (OBJ) \ | |
2019 | || SUBRP (OBJ)) | |
e2c0561e | 2020 | |
3cfe6dfd | 2021 | /* defsubr (Sname); |
d19b9aa8 | 2022 | is how we define the symbol for function `name' at start-up time. */ |
383e0970 | 2023 | extern void defsubr (struct Lisp_Subr *); |
3cfe6dfd JB |
2024 | |
2025 | #define MANY -2 | |
2026 | #define UNEVALLED -1 | |
2027 | ||
ce5b453a SM |
2028 | extern void defvar_lisp (struct Lisp_Objfwd *, const char *, Lisp_Object *); |
2029 | extern void defvar_lisp_nopro (struct Lisp_Objfwd *, const char *, Lisp_Object *); | |
2030 | extern void defvar_bool (struct Lisp_Boolfwd *, const char *, int *); | |
2031 | extern void defvar_int (struct Lisp_Intfwd *, const char *, EMACS_INT *); | |
2032 | extern void defvar_kboard (struct Lisp_Kboard_Objfwd *, const char *, int); | |
3cfe6dfd JB |
2033 | |
2034 | /* Macros we use to define forwarded Lisp variables. | |
29208e82 | 2035 | These are used in the syms_of_FILENAME functions. |
51b59d79 | 2036 | |
29208e82 TT |
2037 | An ordinary (not in buffer_defaults, per-buffer, or per-keyboard) |
2038 | lisp variable is actually a field in `struct emacs_globals'. The | |
2039 | field's name begins with "f_", which is a convention enforced by | |
2040 | these macros. Each such global has a corresponding #define in | |
2041 | globals.h; the plain name should be used in the code. | |
2042 | ||
2043 | E.g., the global "cons_cells_consed" is declared as "int | |
2044 | f_cons_cells_consed" in globals.h, but there is a define: | |
2045 | ||
2046 | #define cons_cells_consed globals.f_cons_cells_consed | |
2047 | ||
2048 | All C code uses the `cons_cells_consed' name. This is all done | |
2049 | this way to support indirection for multi-threaded Emacs. */ | |
3cfe6dfd | 2050 | |
ce5b453a SM |
2051 | #define DEFVAR_LISP(lname, vname, doc) \ |
2052 | do { \ | |
2053 | static struct Lisp_Objfwd o_fwd; \ | |
29208e82 | 2054 | defvar_lisp (&o_fwd, lname, &globals.f_ ## vname); \ |
ce5b453a SM |
2055 | } while (0) |
2056 | #define DEFVAR_LISP_NOPRO(lname, vname, doc) \ | |
2057 | do { \ | |
2058 | static struct Lisp_Objfwd o_fwd; \ | |
29208e82 | 2059 | defvar_lisp_nopro (&o_fwd, lname, &globals.f_ ## vname); \ |
ce5b453a SM |
2060 | } while (0) |
2061 | #define DEFVAR_BOOL(lname, vname, doc) \ | |
2062 | do { \ | |
2063 | static struct Lisp_Boolfwd b_fwd; \ | |
29208e82 | 2064 | defvar_bool (&b_fwd, lname, &globals.f_ ## vname); \ |
ce5b453a SM |
2065 | } while (0) |
2066 | #define DEFVAR_INT(lname, vname, doc) \ | |
2067 | do { \ | |
2068 | static struct Lisp_Intfwd i_fwd; \ | |
29208e82 | 2069 | defvar_int (&i_fwd, lname, &globals.f_ ## vname); \ |
ce5b453a | 2070 | } while (0) |
92d2947b | 2071 | |
422745d0 TT |
2072 | #define DEFVAR_BUFFER_DEFAULTS(lname, vname, doc) \ |
2073 | do { \ | |
2074 | static struct Lisp_Objfwd o_fwd; \ | |
eb4916d7 | 2075 | defvar_lisp_nopro (&o_fwd, lname, &BVAR (&buffer_defaults, vname)); \ |
422745d0 TT |
2076 | } while (0) |
2077 | ||
ce5b453a SM |
2078 | #define DEFVAR_KBOARD(lname, vname, doc) \ |
2079 | do { \ | |
2080 | static struct Lisp_Kboard_Objfwd ko_fwd; \ | |
437b2cb4 | 2081 | defvar_kboard (&ko_fwd, lname, offsetof (KBOARD, vname ## _)); \ |
ce5b453a | 2082 | } while (0) |
df7cd53b | 2083 | |
df7cd53b | 2084 | |
3cfe6dfd | 2085 | \f |
78ca380c JB |
2086 | /* Structure for recording Lisp call stack for backtrace purposes. */ |
2087 | ||
2088 | /* The special binding stack holds the outer values of variables while | |
2089 | they are bound by a function application or a let form, stores the | |
2090 | code to be executed for Lisp unwind-protect forms, and stores the C | |
2091 | functions to be called for record_unwind_protect. | |
2092 | ||
2093 | If func is non-zero, undoing this binding applies func to old_value; | |
2094 | This implements record_unwind_protect. | |
5fd6e274 RS |
2095 | |
2096 | Otherwise, the element is a variable binding. | |
e2c0561e | 2097 | |
5fd6e274 | 2098 | If the symbol field is a symbol, it is an ordinary variable binding. |
e2c0561e | 2099 | |
78edd3b7 JB |
2100 | Otherwise, it should be a structure (SYMBOL WHERE . CURRENT-BUFFER), |
2101 | which means having bound a local value while CURRENT-BUFFER was active. | |
2102 | If WHERE is nil this means we saw the default value when binding SYMBOL. | |
2103 | WHERE being a buffer or frame means we saw a buffer-local or frame-local | |
2104 | value. Other values of WHERE mean an internal error. */ | |
5fd6e274 | 2105 | |
383e0970 | 2106 | typedef Lisp_Object (*specbinding_func) (Lisp_Object); |
07c9ebd6 | 2107 | |
3cfe6dfd JB |
2108 | struct specbinding |
2109 | { | |
a7af5886 SM |
2110 | Lisp_Object symbol, old_value; |
2111 | specbinding_func func; | |
3cfe6dfd JB |
2112 | Lisp_Object unused; /* Dividing by 16 is faster than by 12 */ |
2113 | }; | |
2114 | ||
2115 | extern struct specbinding *specpdl; | |
a7af5886 | 2116 | extern struct specbinding *specpdl_ptr; |
d311d28c | 2117 | extern ptrdiff_t specpdl_size; |
3cfe6dfd | 2118 | |
d311d28c | 2119 | #define SPECPDL_INDEX() (specpdl_ptr - specpdl) |
acb8dc44 | 2120 | |
78ca380c | 2121 | /* Everything needed to describe an active condition case. */ |
3cfe6dfd JB |
2122 | struct handler |
2123 | { | |
78ca380c | 2124 | /* The handler clauses and variable from the condition-case form. */ |
992dd91a RS |
2125 | /* For a handler set up in Lisp code, this is always a list. |
2126 | For an internal handler set up by internal_condition_case*, | |
2127 | this can instead be the symbol t or `error'. | |
2128 | t: handle all conditions. | |
2129 | error: handle all conditions, and errors can run the debugger | |
2130 | or display a backtrace. */ | |
3cfe6dfd JB |
2131 | Lisp_Object handler; |
2132 | Lisp_Object var; | |
22bbbd42 RS |
2133 | /* Fsignal stores here the condition-case clause that applies, |
2134 | and Fcondition_case thus knows which clause to run. */ | |
2135 | Lisp_Object chosen_clause; | |
78ca380c JB |
2136 | |
2137 | /* Used to effect the longjump out to the handler. */ | |
3cfe6dfd | 2138 | struct catchtag *tag; |
78ca380c JB |
2139 | |
2140 | /* The next enclosing handler. */ | |
3cfe6dfd JB |
2141 | struct handler *next; |
2142 | }; | |
2143 | ||
d7306fe6 DN |
2144 | /* This structure helps implement the `catch' and `throw' control |
2145 | structure. A struct catchtag contains all the information needed | |
2146 | to restore the state of the interpreter after a non-local jump. | |
2147 | ||
2148 | Handlers for error conditions (represented by `struct handler' | |
2149 | structures) just point to a catch tag to do the cleanup required | |
2150 | for their jumps. | |
2151 | ||
2152 | catchtag structures are chained together in the C calling stack; | |
2153 | the `next' member points to the next outer catchtag. | |
2154 | ||
2155 | A call like (throw TAG VAL) searches for a catchtag whose `tag' | |
2156 | member is TAG, and then unbinds to it. The `val' member is used to | |
2157 | hold VAL while the stack is unwound; `val' is returned as the value | |
2158 | of the catch form. | |
2159 | ||
2160 | All the other members are concerned with restoring the interpreter | |
2161 | state. */ | |
2162 | ||
2163 | struct catchtag | |
2164 | { | |
2165 | Lisp_Object tag; | |
2166 | Lisp_Object val; | |
2167 | struct catchtag *next; | |
2168 | struct gcpro *gcpro; | |
2169 | jmp_buf jmp; | |
2170 | struct backtrace *backlist; | |
2171 | struct handler *handlerlist; | |
d311d28c PE |
2172 | EMACS_INT lisp_eval_depth; |
2173 | ptrdiff_t pdlcount; | |
d7306fe6 DN |
2174 | int poll_suppress_count; |
2175 | int interrupt_input_blocked; | |
2176 | struct byte_stack *byte_stack; | |
2177 | }; | |
2178 | ||
22bbbd42 RS |
2179 | extern Lisp_Object memory_signal_data; |
2180 | ||
3cfe6dfd JB |
2181 | /* An address near the bottom of the stack. |
2182 | Tells GC how to save a copy of the stack. */ | |
2183 | extern char *stack_bottom; | |
2184 | ||
4742f524 RS |
2185 | /* Check quit-flag and quit if it is non-nil. |
2186 | Typing C-g does not directly cause a quit; it only sets Vquit_flag. | |
2187 | So the program needs to do QUIT at times when it is safe to quit. | |
2188 | Every loop that might run for a long time or might not exit | |
2189 | ought to do QUIT at least once, at a safe place. | |
2190 | Unless that is impossible, of course. | |
2191 | But it is very desirable to avoid creating loops where QUIT is impossible. | |
2192 | ||
2193 | Exception: if you set immediate_quit to nonzero, | |
2194 | then the handler that responds to the C-g does the quit itself. | |
2195 | This is a good thing to do around a loop that has no side effects | |
6c07aac2 AS |
2196 | and (in particular) cannot call arbitrary Lisp code. |
2197 | ||
2198 | If quit-flag is set to `kill-emacs' the SIGINT handler has received | |
2199 | a request to exit Emacs when it is safe to do. */ | |
3cfe6dfd | 2200 | |
6b61353c | 2201 | #ifdef SYNC_INPUT |
383e0970 | 2202 | extern void process_pending_signals (void); |
26f1ab24 | 2203 | extern int pending_signals; |
c0335e02 SM |
2204 | #define ELSE_PENDING_SIGNALS \ |
2205 | else if (pending_signals) \ | |
2206 | process_pending_signals (); | |
6b61353c | 2207 | #else /* not SYNC_INPUT */ |
c0335e02 SM |
2208 | #define ELSE_PENDING_SIGNALS |
2209 | #endif /* not SYNC_INPUT */ | |
6b61353c | 2210 | |
7dbda6df | 2211 | extern void process_quit_flag (void); |
a69a6e61 GM |
2212 | #define QUIT \ |
2213 | do { \ | |
2214 | if (!NILP (Vquit_flag) && NILP (Vinhibit_quit)) \ | |
6d5eb5b0 | 2215 | process_quit_flag (); \ |
c0335e02 | 2216 | ELSE_PENDING_SIGNALS \ |
a69a6e61 | 2217 | } while (0) |
3cfe6dfd | 2218 | |
6b61353c | 2219 | |
3cfe6dfd JB |
2220 | /* Nonzero if ought to quit now. */ |
2221 | ||
efb859b4 | 2222 | #define QUITP (!NILP (Vquit_flag) && NILP (Vinhibit_quit)) |
3cfe6dfd | 2223 | \f |
31cd66f3 PE |
2224 | extern Lisp_Object Vascii_downcase_table; |
2225 | extern Lisp_Object Vascii_canon_table; | |
3cfe6dfd | 2226 | \f |
99a3d506 | 2227 | /* Number of bytes of structure consed since last GC. */ |
3cfe6dfd | 2228 | |
0de4bb68 | 2229 | extern EMACS_INT consing_since_gc; |
3cfe6dfd | 2230 | |
9bd32d8c | 2231 | extern EMACS_INT gc_relative_threshold; |
3cfe6dfd | 2232 | |
eb3fe174 RS |
2233 | extern EMACS_INT memory_full_cons_threshold; |
2234 | ||
99a3d506 | 2235 | /* Structure for recording stack slots that need marking. */ |
3cfe6dfd | 2236 | |
78edd3b7 JB |
2237 | /* This is a chain of structures, each of which points at a Lisp_Object |
2238 | variable whose value should be marked in garbage collection. | |
2239 | Normally every link of the chain is an automatic variable of a function, | |
2240 | and its `val' points to some argument or local variable of the function. | |
2241 | On exit to the function, the chain is set back to the value it had on entry. | |
2242 | This way, no link remains in the chain when the stack frame containing the | |
2243 | link disappears. | |
3cfe6dfd | 2244 | |
78edd3b7 JB |
2245 | Every function that can call Feval must protect in this fashion all |
2246 | Lisp_Object variables whose contents will be used again. */ | |
3cfe6dfd JB |
2247 | |
2248 | extern struct gcpro *gcprolist; | |
2249 | ||
2250 | struct gcpro | |
834168ef GM |
2251 | { |
2252 | struct gcpro *next; | |
e2c0561e | 2253 | |
834168ef GM |
2254 | /* Address of first protected variable. */ |
2255 | volatile Lisp_Object *var; | |
e2c0561e | 2256 | |
834168ef | 2257 | /* Number of consecutive protected variables. */ |
f66c7cf8 | 2258 | ptrdiff_t nvars; |
e2c0561e | 2259 | |
4742f524 | 2260 | #ifdef DEBUG_GCPRO |
834168ef | 2261 | int level; |
4742f524 | 2262 | #endif |
834168ef | 2263 | }; |
3cfe6dfd | 2264 | |
1216f5e4 GM |
2265 | /* Values of GC_MARK_STACK during compilation: |
2266 | ||
2267 | 0 Use GCPRO as before | |
2268 | 1 Do the real thing, make GCPROs and UNGCPRO no-ops. | |
2269 | 2 Mark the stack, and check that everything GCPRO'd is | |
2270 | marked. | |
2271 | 3 Mark using GCPRO's, mark stack last, and count how many | |
2272 | dead objects are kept alive. */ | |
2273 | ||
2274 | ||
2275 | #define GC_USE_GCPROS_AS_BEFORE 0 | |
2276 | #define GC_MAKE_GCPROS_NOOPS 1 | |
2277 | #define GC_MARK_STACK_CHECK_GCPROS 2 | |
2278 | #define GC_USE_GCPROS_CHECK_ZOMBIES 3 | |
2279 | ||
2280 | #ifndef GC_MARK_STACK | |
b948ce8b | 2281 | #define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS |
1216f5e4 GM |
2282 | #endif |
2283 | ||
b286858c SM |
2284 | /* Whether we do the stack marking manually. */ |
2285 | #define BYTE_MARK_STACK !(GC_MARK_STACK == GC_MAKE_GCPROS_NOOPS \ | |
2286 | || GC_MARK_STACK == GC_MARK_STACK_CHECK_GCPROS) | |
2287 | ||
2288 | ||
1216f5e4 GM |
2289 | #if GC_MARK_STACK == GC_MAKE_GCPROS_NOOPS |
2290 | ||
9f0443f9 | 2291 | /* Do something silly with gcproN vars just so gcc shuts up. */ |
656c33dc | 2292 | /* You get warnings from MIPSPro... */ |
9f0443f9 | 2293 | |
dbf31225 PE |
2294 | #define GCPRO1(varname) ((void) gcpro1) |
2295 | #define GCPRO2(varname1, varname2) ((void) gcpro2, (void) gcpro1) | |
2296 | #define GCPRO3(varname1, varname2, varname3) \ | |
2297 | ((void) gcpro3, (void) gcpro2, (void) gcpro1) | |
2298 | #define GCPRO4(varname1, varname2, varname3, varname4) \ | |
2299 | ((void) gcpro4, (void) gcpro3, (void) gcpro2, (void) gcpro1) | |
2300 | #define GCPRO5(varname1, varname2, varname3, varname4, varname5) \ | |
2301 | ((void) gcpro5, (void) gcpro4, (void) gcpro3, (void) gcpro2, (void) gcpro1) | |
2302 | #define GCPRO6(varname1, varname2, varname3, varname4, varname5, varname6) \ | |
2303 | ((void) gcpro6, (void) gcpro5, (void) gcpro4, (void) gcpro3, (void) gcpro2, \ | |
2304 | (void) gcpro1) | |
2305 | #define UNGCPRO ((void) 0) | |
1216f5e4 GM |
2306 | |
2307 | #else /* GC_MARK_STACK != GC_MAKE_GCPROS_NOOPS */ | |
2308 | ||
4742f524 RS |
2309 | #ifndef DEBUG_GCPRO |
2310 | ||
dbf31225 PE |
2311 | #define GCPRO1(varname) \ |
2312 | {gcpro1.next = gcprolist; gcpro1.var = &varname; gcpro1.nvars = 1; \ | |
2313 | gcprolist = &gcpro1; } | |
2314 | ||
2315 | #define GCPRO2(varname1, varname2) \ | |
2316 | {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \ | |
2317 | gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \ | |
2318 | gcprolist = &gcpro2; } | |
2319 | ||
2320 | #define GCPRO3(varname1, varname2, varname3) \ | |
2321 | {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \ | |
2322 | gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \ | |
2323 | gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \ | |
2324 | gcprolist = &gcpro3; } | |
2325 | ||
2326 | #define GCPRO4(varname1, varname2, varname3, varname4) \ | |
2327 | {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \ | |
2328 | gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \ | |
2329 | gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \ | |
2330 | gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \ | |
2331 | gcprolist = &gcpro4; } | |
2332 | ||
2333 | #define GCPRO5(varname1, varname2, varname3, varname4, varname5) \ | |
2334 | {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \ | |
2335 | gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \ | |
2336 | gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \ | |
2337 | gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \ | |
2338 | gcpro5.next = &gcpro4; gcpro5.var = &varname5; gcpro5.nvars = 1; \ | |
2339 | gcprolist = &gcpro5; } | |
2340 | ||
2341 | #define GCPRO6(varname1, varname2, varname3, varname4, varname5, varname6) \ | |
2342 | {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \ | |
2343 | gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \ | |
2344 | gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \ | |
2345 | gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \ | |
2346 | gcpro5.next = &gcpro4; gcpro5.var = &varname5; gcpro5.nvars = 1; \ | |
2347 | gcpro6.next = &gcpro5; gcpro6.var = &varname6; gcpro6.nvars = 1; \ | |
2348 | gcprolist = &gcpro6; } | |
2349 | ||
2350 | #define UNGCPRO (gcprolist = gcpro1.next) | |
3cfe6dfd | 2351 | |
4742f524 | 2352 | #else |
e98227af | 2353 | |
4742f524 RS |
2354 | extern int gcpro_level; |
2355 | ||
dbf31225 PE |
2356 | #define GCPRO1(varname) \ |
2357 | {gcpro1.next = gcprolist; gcpro1.var = &varname; gcpro1.nvars = 1; \ | |
2358 | gcpro1.level = gcpro_level++; \ | |
2359 | gcprolist = &gcpro1; } | |
2360 | ||
2361 | #define GCPRO2(varname1, varname2) \ | |
2362 | {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \ | |
2363 | gcpro1.level = gcpro_level; \ | |
2364 | gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \ | |
2365 | gcpro2.level = gcpro_level++; \ | |
2366 | gcprolist = &gcpro2; } | |
2367 | ||
2368 | #define GCPRO3(varname1, varname2, varname3) \ | |
2369 | {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \ | |
2370 | gcpro1.level = gcpro_level; \ | |
2371 | gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \ | |
2372 | gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \ | |
2373 | gcpro3.level = gcpro_level++; \ | |
2374 | gcprolist = &gcpro3; } | |
2375 | ||
2376 | #define GCPRO4(varname1, varname2, varname3, varname4) \ | |
2377 | {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \ | |
2378 | gcpro1.level = gcpro_level; \ | |
2379 | gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \ | |
2380 | gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \ | |
2381 | gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \ | |
2382 | gcpro4.level = gcpro_level++; \ | |
2383 | gcprolist = &gcpro4; } | |
2384 | ||
2385 | #define GCPRO5(varname1, varname2, varname3, varname4, varname5) \ | |
2386 | {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \ | |
2387 | gcpro1.level = gcpro_level; \ | |
2388 | gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \ | |
2389 | gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \ | |
2390 | gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \ | |
2391 | gcpro5.next = &gcpro4; gcpro5.var = &varname5; gcpro5.nvars = 1; \ | |
2392 | gcpro5.level = gcpro_level++; \ | |
2393 | gcprolist = &gcpro5; } | |
2394 | ||
2395 | #define GCPRO6(varname1, varname2, varname3, varname4, varname5, varname6) \ | |
2396 | {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \ | |
2397 | gcpro1.level = gcpro_level; \ | |
2398 | gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \ | |
2399 | gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \ | |
2400 | gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \ | |
2401 | gcpro5.next = &gcpro4; gcpro5.var = &varname5; gcpro5.nvars = 1; \ | |
2402 | gcpro6.next = &gcpro5; gcpro6.var = &varname6; gcpro6.nvars = 1; \ | |
2403 | gcpro6.level = gcpro_level++; \ | |
2404 | gcprolist = &gcpro6; } | |
2405 | ||
2406 | #define UNGCPRO \ | |
2407 | ((--gcpro_level != gcpro1.level) \ | |
2408 | ? (abort (), 0) \ | |
2409 | : ((gcprolist = gcpro1.next), 0)) | |
4742f524 RS |
2410 | |
2411 | #endif /* DEBUG_GCPRO */ | |
1216f5e4 GM |
2412 | #endif /* GC_MARK_STACK != GC_MAKE_GCPROS_NOOPS */ |
2413 | ||
3cfe6dfd | 2414 | |
5db82c9d | 2415 | /* Evaluate expr, UNGCPRO, and then return the value of expr. */ |
c47b8d02 | 2416 | #define RETURN_UNGCPRO(expr) \ |
0868e74e | 2417 | do \ |
c47b8d02 RS |
2418 | { \ |
2419 | Lisp_Object ret_ungc_val; \ | |
2420 | ret_ungc_val = (expr); \ | |
2421 | UNGCPRO; \ | |
2422 | return ret_ungc_val; \ | |
2423 | } \ | |
0868e74e | 2424 | while (0) |
4742f524 RS |
2425 | |
2426 | /* Call staticpro (&var) to protect static variable `var'. */ | |
2427 | ||
383e0970 | 2428 | void staticpro (Lisp_Object *); |
3cfe6dfd | 2429 | \f |
2f69f2ec RS |
2430 | /* Declare a Lisp-callable function. The MAXARGS parameter has the same |
2431 | meaning as in the DEFUN macro, and is used to construct a prototype. */ | |
2f69f2ec RS |
2432 | /* We can use the same trick as in the DEFUN macro to generate the |
2433 | appropriate prototype. */ | |
2434 | #define EXFUN(fnname, maxargs) \ | |
2435 | extern Lisp_Object fnname DEFUN_ARGS_ ## maxargs | |
2f69f2ec | 2436 | |
526a2be7 AS |
2437 | /* Forward declarations for prototypes. */ |
2438 | struct window; | |
2439 | struct frame; | |
2f69f2ec | 2440 | |
f6d62986 | 2441 | /* Defined in data.c. */ |
955cbe7b | 2442 | extern Lisp_Object Qnil, Qt, Qquote, Qlambda, Qunbound; |
3cfe6dfd | 2443 | extern Lisp_Object Qerror_conditions, Qerror_message, Qtop_level; |
955cbe7b | 2444 | extern Lisp_Object Qerror, Qquit, Qargs_out_of_range; |
3cfe6dfd | 2445 | extern Lisp_Object Qvoid_variable, Qvoid_function; |
955cbe7b | 2446 | extern Lisp_Object Qinvalid_read_syntax; |
3cfe6dfd | 2447 | extern Lisp_Object Qinvalid_function, Qwrong_number_of_arguments, Qno_catch; |
71873e2b | 2448 | extern Lisp_Object Quser_error, Qend_of_file, Qarith_error, Qmark_inactive; |
3cfe6dfd | 2449 | extern Lisp_Object Qbeginning_of_buffer, Qend_of_buffer, Qbuffer_read_only; |
6b61353c | 2450 | extern Lisp_Object Qtext_read_only; |
e6cba650 | 2451 | extern Lisp_Object Qinteractive_form; |
99f3388e | 2452 | extern Lisp_Object Qcircular_list; |
955cbe7b | 2453 | extern Lisp_Object Qintegerp, Qwholenump, Qsymbolp, Qlistp, Qconsp; |
3cfe6dfd | 2454 | extern Lisp_Object Qstringp, Qarrayp, Qsequencep, Qbufferp; |
6b61353c | 2455 | extern Lisp_Object Qchar_or_string_p, Qmarkerp, Qinteger_or_marker_p, Qvectorp; |
cde20f41 | 2456 | extern Lisp_Object Qbuffer_or_string_p; |
955cbe7b | 2457 | extern Lisp_Object Qfboundp; |
6b61353c KH |
2458 | extern Lisp_Object Qchar_table_p, Qvector_or_char_table_p; |
2459 | ||
3cfe6dfd JB |
2460 | extern Lisp_Object Qcdr; |
2461 | ||
6b61353c KH |
2462 | extern Lisp_Object Qrange_error, Qdomain_error, Qsingularity_error; |
2463 | extern Lisp_Object Qoverflow_error, Qunderflow_error; | |
3cfe6dfd | 2464 | |
6b61353c KH |
2465 | extern Lisp_Object Qfloatp; |
2466 | extern Lisp_Object Qnumberp, Qnumber_or_marker_p; | |
2467 | ||
2468 | extern Lisp_Object Qinteger; | |
3cfe6dfd | 2469 | |
a35ebb81 CY |
2470 | extern Lisp_Object Qfont_spec, Qfont_entity, Qfont_object; |
2471 | ||
6b61353c | 2472 | EXFUN (Finteractive_form, 1); |
9370c1d8 | 2473 | EXFUN (Fbyteorder, 0); |
6b61353c KH |
2474 | |
2475 | /* Defined in frame.c */ | |
2476 | extern Lisp_Object Qframep; | |
7436b0a9 | 2477 | |
2f7c71a1 | 2478 | /* Defined in data.c */ |
2f69f2ec RS |
2479 | EXFUN (Fcar, 1); |
2480 | EXFUN (Fcar_safe, 1); | |
2481 | EXFUN (Fcdr, 1); | |
2482 | EXFUN (Fcdr_safe, 1); | |
2483 | EXFUN (Fsetcar, 2); | |
2484 | EXFUN (Fsetcdr, 2); | |
2485 | EXFUN (Fboundp, 1); | |
2486 | EXFUN (Ffboundp, 1); | |
2f69f2ec | 2487 | EXFUN (Fsymbol_function, 1); |
2f69f2ec | 2488 | EXFUN (Fsymbol_name, 1); |
383e0970 | 2489 | extern Lisp_Object indirect_function (Lisp_Object); |
a7f96a35 | 2490 | EXFUN (Findirect_function, 2); |
2f69f2ec | 2491 | EXFUN (Ffset, 2); |
2f69f2ec | 2492 | EXFUN (Fsymbol_value, 1); |
383e0970 | 2493 | extern Lisp_Object find_symbol_value (Lisp_Object); |
2f69f2ec RS |
2494 | EXFUN (Fset, 2); |
2495 | EXFUN (Fdefault_value, 1); | |
2496 | EXFUN (Fset_default, 2); | |
2497 | EXFUN (Fdefault_boundp, 1); | |
2498 | EXFUN (Fmake_local_variable, 1); | |
a154f406 | 2499 | EXFUN (Flocal_variable_p, 2); |
2f69f2ec RS |
2500 | |
2501 | EXFUN (Faref, 2); | |
2502 | EXFUN (Faset, 3); | |
2503 | ||
2504 | EXFUN (Fstring_to_number, 2); | |
2505 | EXFUN (Fnumber_to_string, 1); | |
2f69f2ec RS |
2506 | EXFUN (Fgtr, 2); |
2507 | EXFUN (Flss, 2); | |
2508 | EXFUN (Fgeq, 2); | |
2509 | EXFUN (Fleq, 2); | |
2f69f2ec RS |
2510 | EXFUN (Fzerop, 1); |
2511 | EXFUN (Fplus, MANY); | |
2512 | EXFUN (Fminus, MANY); | |
2513 | EXFUN (Ftimes, MANY); | |
2514 | EXFUN (Fquo, MANY); | |
2515 | EXFUN (Frem, 2); | |
2516 | EXFUN (Fmax, MANY); | |
2517 | EXFUN (Fmin, MANY); | |
2f69f2ec RS |
2518 | |
2519 | EXFUN (Fadd1, 1); | |
2520 | EXFUN (Fsub1, 1); | |
d7935eb6 | 2521 | EXFUN (Fmake_variable_buffer_local, 1); |
2f69f2ec | 2522 | |
be44ca6c PE |
2523 | /* Convert the integer I to an Emacs representation, either the integer |
2524 | itself, or a cons of two or three integers, or if all else fails a float. | |
2525 | I should not have side effects. */ | |
2526 | #define INTEGER_TO_CONS(i) \ | |
2527 | (! FIXNUM_OVERFLOW_P (i) \ | |
2528 | ? make_number (i) \ | |
2529 | : ! ((FIXNUM_OVERFLOW_P (INTMAX_MIN >> 16) \ | |
2530 | || FIXNUM_OVERFLOW_P (UINTMAX_MAX >> 16)) \ | |
2531 | && FIXNUM_OVERFLOW_P ((i) >> 16)) \ | |
2532 | ? Fcons (make_number ((i) >> 16), make_number ((i) & 0xffff)) \ | |
2533 | : ! ((FIXNUM_OVERFLOW_P (INTMAX_MIN >> 16 >> 24) \ | |
2534 | || FIXNUM_OVERFLOW_P (UINTMAX_MAX >> 16 >> 24)) \ | |
2535 | && FIXNUM_OVERFLOW_P ((i) >> 16 >> 24)) \ | |
2536 | ? Fcons (make_number ((i) >> 16 >> 24), \ | |
2537 | Fcons (make_number ((i) >> 16 & 0xffffff), \ | |
2538 | make_number ((i) & 0xffff))) \ | |
2539 | : make_float (i)) | |
2540 | ||
2541 | /* Convert the Emacs representation CONS back to an integer of type | |
2542 | TYPE, storing the result the variable VAR. Signal an error if CONS | |
2543 | is not a valid representation or is out of range for TYPE. */ | |
2544 | #define CONS_TO_INTEGER(cons, type, var) \ | |
2545 | (TYPE_SIGNED (type) \ | |
2546 | ? ((var) = cons_to_signed (cons, TYPE_MINIMUM (type), TYPE_MAXIMUM (type))) \ | |
2547 | : ((var) = cons_to_unsigned (cons, TYPE_MAXIMUM (type)))) | |
2548 | extern intmax_t cons_to_signed (Lisp_Object, intmax_t, intmax_t); | |
2549 | extern uintmax_t cons_to_unsigned (Lisp_Object, uintmax_t); | |
2550 | ||
ad97b375 | 2551 | extern struct Lisp_Symbol *indirect_variable (struct Lisp_Symbol *); |
383e0970 J |
2552 | extern void args_out_of_range (Lisp_Object, Lisp_Object) NO_RETURN; |
2553 | extern void args_out_of_range_3 (Lisp_Object, Lisp_Object, | |
2554 | Lisp_Object) NO_RETURN; | |
2555 | extern Lisp_Object wrong_type_argument (Lisp_Object, Lisp_Object) NO_RETURN; | |
ce5b453a | 2556 | extern Lisp_Object do_symval_forwarding (union Lisp_Fwd *); |
94b612ad | 2557 | extern void set_internal (Lisp_Object, Lisp_Object, Lisp_Object, int); |
383e0970 J |
2558 | extern void syms_of_data (void); |
2559 | extern void init_data (void); | |
2560 | extern void swap_in_global_binding (struct Lisp_Symbol *); | |
3cfe6dfd | 2561 | |
a37e10f9 | 2562 | /* Defined in cmds.c */ |
2f69f2ec RS |
2563 | EXFUN (Fend_of_line, 1); |
2564 | EXFUN (Fforward_char, 1); | |
2565 | EXFUN (Fforward_line, 1); | |
383e0970 J |
2566 | extern void syms_of_cmds (void); |
2567 | extern void keys_of_cmds (void); | |
a37e10f9 | 2568 | |
6b768554 | 2569 | /* Defined in coding.c */ |
2f7c71a1 | 2570 | extern Lisp_Object Qcharset; |
2f69f2ec | 2571 | EXFUN (Fcoding_system_p, 1); |
a6392022 KH |
2572 | EXFUN (Fcoding_system_base, 1); |
2573 | EXFUN (Fcoding_system_eol_type, 1); | |
2574 | EXFUN (Fcheck_coding_system, 1); | |
34ba1f2e | 2575 | EXFUN (Fread_coding_system, 2); |
2f69f2ec | 2576 | EXFUN (Fread_non_nil_coding_system, 1); |
a154f406 | 2577 | EXFUN (Ffind_operation_coding_system, MANY); |
1842abb2 | 2578 | EXFUN (Fdecode_coding_string, 4); |
d311d28c PE |
2579 | extern Lisp_Object detect_coding_system (const unsigned char *, ptrdiff_t, |
2580 | ptrdiff_t, int, int, Lisp_Object); | |
383e0970 J |
2581 | extern void init_coding (void); |
2582 | extern void init_coding_once (void); | |
2583 | extern void syms_of_coding (void); | |
1842abb2 KH |
2584 | |
2585 | /* Defined in character.c */ | |
ec5d8db7 | 2586 | EXFUN (Fchar_width, 1); |
4516715a | 2587 | EXFUN (Fstring, MANY); |
d311d28c PE |
2588 | extern ptrdiff_t chars_in_text (const unsigned char *, ptrdiff_t); |
2589 | extern ptrdiff_t multibyte_chars_in_text (const unsigned char *, ptrdiff_t); | |
461c2ab9 | 2590 | extern int multibyte_char_to_unibyte (int); |
383e0970 | 2591 | extern int multibyte_char_to_unibyte_safe (int); |
2f7c71a1 AS |
2592 | extern void init_character_once (void); |
2593 | extern void syms_of_character (void); | |
2594 | ||
2595 | /* Defined in charset.c */ | |
383e0970 J |
2596 | extern void init_charset (void); |
2597 | extern void init_charset_once (void); | |
2598 | extern void syms_of_charset (void); | |
8f924df7 KH |
2599 | /* Structure forward declarations. */ |
2600 | struct charset; | |
5e741a41 | 2601 | |
1842abb2 | 2602 | /* Defined in composite.c */ |
383e0970 | 2603 | extern void syms_of_composite (void); |
5e741a41 | 2604 | |
a37e10f9 | 2605 | /* Defined in syntax.c */ |
2f69f2ec RS |
2606 | EXFUN (Fforward_word, 1); |
2607 | EXFUN (Fskip_chars_forward, 2); | |
2608 | EXFUN (Fskip_chars_backward, 2); | |
383e0970 J |
2609 | extern void init_syntax_once (void); |
2610 | extern void syms_of_syntax (void); | |
a37e10f9 | 2611 | |
3cfe6dfd | 2612 | /* Defined in fns.c */ |
99f3388e | 2613 | extern Lisp_Object QCrehash_size, QCrehash_threshold; |
ca9ce8f2 | 2614 | enum { NEXT_ALMOST_PRIME_LIMIT = 11 }; |
0de4bb68 | 2615 | extern EMACS_INT next_almost_prime (EMACS_INT); |
d311d28c | 2616 | extern Lisp_Object larger_vector (Lisp_Object, ptrdiff_t, ptrdiff_t); |
383e0970 | 2617 | extern void sweep_weak_hash_tables (void); |
e6cba650 | 2618 | extern Lisp_Object Qcursor_in_echo_area; |
3cfe6dfd | 2619 | extern Lisp_Object Qstring_lessp; |
99f3388e | 2620 | extern Lisp_Object QCsize, QCtest, QCweakness, Qequal, Qeq, Qeql; |
3cc5a532 | 2621 | EMACS_UINT hash_string (char const *, ptrdiff_t); |
0de4bb68 | 2622 | EMACS_UINT sxhash (Lisp_Object, int); |
383e0970 J |
2623 | Lisp_Object make_hash_table (Lisp_Object, Lisp_Object, Lisp_Object, |
2624 | Lisp_Object, Lisp_Object, Lisp_Object, | |
2625 | Lisp_Object); | |
d3411f89 PE |
2626 | ptrdiff_t hash_lookup (struct Lisp_Hash_Table *, Lisp_Object, EMACS_UINT *); |
2627 | ptrdiff_t hash_put (struct Lisp_Hash_Table *, Lisp_Object, Lisp_Object, | |
0de4bb68 | 2628 | EMACS_UINT); |
383e0970 J |
2629 | void init_weak_hash_tables (void); |
2630 | extern void init_fns (void); | |
5010d3b8 | 2631 | EXFUN (Fmake_hash_table, MANY); |
5010d3b8 GM |
2632 | EXFUN (Fgethash, 3); |
2633 | EXFUN (Fputhash, 3); | |
2634 | EXFUN (Fremhash, 2); | |
5010d3b8 | 2635 | |
2f69f2ec | 2636 | EXFUN (Fidentity, 1); |
2f69f2ec | 2637 | EXFUN (Flength, 1); |
2f69f2ec RS |
2638 | EXFUN (Fappend, MANY); |
2639 | EXFUN (Fconcat, MANY); | |
2640 | EXFUN (Fvconcat, MANY); | |
2641 | EXFUN (Fcopy_sequence, 1); | |
b4e187e2 RS |
2642 | EXFUN (Fstring_make_multibyte, 1); |
2643 | EXFUN (Fstring_make_unibyte, 1); | |
2644 | EXFUN (Fstring_as_multibyte, 1); | |
2645 | EXFUN (Fstring_as_unibyte, 1); | |
35e36092 | 2646 | EXFUN (Fstring_to_multibyte, 1); |
2f69f2ec | 2647 | EXFUN (Fsubstring, 3); |
d311d28c PE |
2648 | extern Lisp_Object substring_both (Lisp_Object, ptrdiff_t, ptrdiff_t, |
2649 | ptrdiff_t, ptrdiff_t); | |
2f69f2ec RS |
2650 | EXFUN (Fnth, 2); |
2651 | EXFUN (Fnthcdr, 2); | |
2652 | EXFUN (Fmemq, 2); | |
2653 | EXFUN (Fassq, 2); | |
2654 | EXFUN (Fassoc, 2); | |
2655 | EXFUN (Felt, 2); | |
2656 | EXFUN (Fmember, 2); | |
2657 | EXFUN (Frassq, 2); | |
2658 | EXFUN (Fdelq, 2); | |
e870dd89 | 2659 | EXFUN (Fdelete, 2); |
2f69f2ec RS |
2660 | EXFUN (Fsort, 2); |
2661 | EXFUN (Freverse, 1); | |
2662 | EXFUN (Fnreverse, 1); | |
2663 | EXFUN (Fget, 2); | |
2664 | EXFUN (Fput, 3); | |
2665 | EXFUN (Fequal, 2); | |
2f69f2ec RS |
2666 | EXFUN (Fnconc, MANY); |
2667 | EXFUN (Fmapcar, 2); | |
2668 | EXFUN (Fmapconcat, 3); | |
383e0970 | 2669 | extern Lisp_Object do_yes_or_no_p (Lisp_Object); |
13598ab4 | 2670 | EXFUN (Fprovide, 2); |
383e0970 J |
2671 | extern Lisp_Object concat2 (Lisp_Object, Lisp_Object); |
2672 | extern Lisp_Object concat3 (Lisp_Object, Lisp_Object, Lisp_Object); | |
2673 | extern Lisp_Object nconc2 (Lisp_Object, Lisp_Object); | |
2674 | extern Lisp_Object assq_no_quit (Lisp_Object, Lisp_Object); | |
2675 | extern Lisp_Object assoc_no_quit (Lisp_Object, Lisp_Object); | |
2676 | extern void clear_string_char_byte_cache (void); | |
d311d28c PE |
2677 | extern ptrdiff_t string_char_to_byte (Lisp_Object, ptrdiff_t); |
2678 | extern ptrdiff_t string_byte_to_char (Lisp_Object, ptrdiff_t); | |
383e0970 J |
2679 | extern Lisp_Object string_to_multibyte (Lisp_Object); |
2680 | extern Lisp_Object string_make_unibyte (Lisp_Object); | |
2f69f2ec RS |
2681 | EXFUN (Fcopy_alist, 1); |
2682 | EXFUN (Fplist_get, 2); | |
5010d3b8 | 2683 | EXFUN (Fplist_put, 3); |
99982883 | 2684 | EXFUN (Fplist_member, 2); |
2f69f2ec RS |
2685 | EXFUN (Frassoc, 2); |
2686 | EXFUN (Fstring_equal, 2); | |
42d65b5f | 2687 | EXFUN (Fcompare_strings, 7); |
2f69f2ec | 2688 | EXFUN (Fstring_lessp, 2); |
383e0970 | 2689 | extern void syms_of_fns (void); |
2f69f2ec RS |
2690 | |
2691 | /* Defined in floatfns.c */ | |
383e0970 | 2692 | extern double extract_float (Lisp_Object); |
2f69f2ec | 2693 | EXFUN (Ffloat, 1); |
2f69f2ec | 2694 | EXFUN (Ftruncate, 2); |
383e0970 J |
2695 | extern void init_floatfns (void); |
2696 | extern void syms_of_floatfns (void); | |
3d608a86 | 2697 | extern Lisp_Object fmod_float (Lisp_Object x, Lisp_Object y); |
3cfe6dfd | 2698 | |
6b61353c | 2699 | /* Defined in fringe.c */ |
383e0970 J |
2700 | extern void syms_of_fringe (void); |
2701 | extern void init_fringe (void); | |
524c7aa6 PE |
2702 | #ifdef HAVE_WINDOW_SYSTEM |
2703 | extern void mark_fringe_data (void); | |
383e0970 | 2704 | extern void init_fringe_once (void); |
524c7aa6 | 2705 | #endif /* HAVE_WINDOW_SYSTEM */ |
6b61353c KH |
2706 | |
2707 | /* Defined in image.c */ | |
955cbe7b PE |
2708 | extern Lisp_Object QCascent, QCmargin, QCrelief; |
2709 | extern Lisp_Object QCconversion; | |
0766b489 | 2710 | extern int x_bitmap_mask (struct frame *, ptrdiff_t); |
383e0970 J |
2711 | extern void syms_of_image (void); |
2712 | extern void init_image (void); | |
6b61353c | 2713 | |
c98adc1b | 2714 | /* Defined in insdel.c */ |
b8b31967 | 2715 | extern Lisp_Object Qinhibit_modification_hooks; |
d311d28c PE |
2716 | extern void move_gap (ptrdiff_t); |
2717 | extern void move_gap_both (ptrdiff_t, ptrdiff_t); | |
99561444 | 2718 | extern void buffer_overflow (void) NO_RETURN; |
d311d28c PE |
2719 | extern void make_gap (ptrdiff_t); |
2720 | extern ptrdiff_t copy_text (const unsigned char *, unsigned char *, | |
2721 | ptrdiff_t, int, int); | |
ae19ba7c | 2722 | extern int count_combining_before (const unsigned char *, |
d311d28c | 2723 | ptrdiff_t, ptrdiff_t, ptrdiff_t); |
ae19ba7c | 2724 | extern int count_combining_after (const unsigned char *, |
d311d28c PE |
2725 | ptrdiff_t, ptrdiff_t, ptrdiff_t); |
2726 | extern void insert (const char *, ptrdiff_t); | |
2727 | extern void insert_and_inherit (const char *, ptrdiff_t); | |
2728 | extern void insert_1 (const char *, ptrdiff_t, int, int, int); | |
2729 | extern void insert_1_both (const char *, ptrdiff_t, ptrdiff_t, | |
ae19ba7c | 2730 | int, int, int); |
d311d28c PE |
2731 | extern void insert_from_gap (ptrdiff_t, ptrdiff_t); |
2732 | extern void insert_from_string (Lisp_Object, ptrdiff_t, ptrdiff_t, | |
2733 | ptrdiff_t, ptrdiff_t, int); | |
2734 | extern void insert_from_buffer (struct buffer *, ptrdiff_t, ptrdiff_t, int); | |
ae19ba7c SM |
2735 | extern void insert_char (int); |
2736 | extern void insert_string (const char *); | |
d311d28c PE |
2737 | extern void insert_before_markers (const char *, ptrdiff_t); |
2738 | extern void insert_before_markers_and_inherit (const char *, ptrdiff_t); | |
2739 | extern void insert_from_string_before_markers (Lisp_Object, ptrdiff_t, | |
2740 | ptrdiff_t, ptrdiff_t, | |
2741 | ptrdiff_t, int); | |
2742 | extern void del_range (ptrdiff_t, ptrdiff_t); | |
2743 | extern Lisp_Object del_range_1 (ptrdiff_t, ptrdiff_t, int, int); | |
2744 | extern void del_range_byte (ptrdiff_t, ptrdiff_t, int); | |
2745 | extern void del_range_both (ptrdiff_t, ptrdiff_t, ptrdiff_t, ptrdiff_t, int); | |
2746 | extern Lisp_Object del_range_2 (ptrdiff_t, ptrdiff_t, | |
2747 | ptrdiff_t, ptrdiff_t, int); | |
2748 | extern void modify_region (struct buffer *, ptrdiff_t, ptrdiff_t, int); | |
2749 | extern void prepare_to_modify_buffer (ptrdiff_t, ptrdiff_t, ptrdiff_t *); | |
2750 | extern void signal_after_change (ptrdiff_t, ptrdiff_t, ptrdiff_t); | |
2751 | extern void adjust_after_insert (ptrdiff_t, ptrdiff_t, ptrdiff_t, | |
2752 | ptrdiff_t, ptrdiff_t); | |
2753 | extern void adjust_markers_for_delete (ptrdiff_t, ptrdiff_t, | |
2754 | ptrdiff_t, ptrdiff_t); | |
2755 | extern void replace_range (ptrdiff_t, ptrdiff_t, Lisp_Object, int, int, int); | |
2756 | extern void replace_range_2 (ptrdiff_t, ptrdiff_t, ptrdiff_t, ptrdiff_t, | |
2757 | const char *, ptrdiff_t, ptrdiff_t, int); | |
ae19ba7c | 2758 | extern void syms_of_insdel (void); |
c98adc1b | 2759 | |
1747fb16 | 2760 | /* Defined in dispnew.c */ |
37b793e6 | 2761 | extern Lisp_Object selected_frame; |
7684e57b | 2762 | extern Lisp_Object Vwindow_system; |
2f69f2ec | 2763 | EXFUN (Fding, 1); |
f5969ae9 | 2764 | EXFUN (Fredraw_frame, 1); |
d311d28c | 2765 | void duration_to_sec_usec (double, int *, int *); |
2f69f2ec | 2766 | EXFUN (Fsleep_for, 2); |
ab9b1db5 | 2767 | EXFUN (Fredisplay, 1); |
383e0970 J |
2768 | extern Lisp_Object sit_for (Lisp_Object, int, int); |
2769 | extern void init_display (void); | |
2770 | extern void syms_of_display (void); | |
1747fb16 | 2771 | |
c98adc1b | 2772 | /* Defined in xdisp.c */ |
c6ae41f3 | 2773 | extern Lisp_Object Qinhibit_point_motion_hooks; |
016c7a15 | 2774 | extern Lisp_Object Qinhibit_redisplay, Qdisplay; |
99f3388e | 2775 | extern Lisp_Object Qmenu_bar_update_hook; |
29208e82 | 2776 | extern Lisp_Object Qwindow_scroll_functions; |
99f3388e | 2777 | extern Lisp_Object Qoverriding_local_map, Qoverriding_terminal_local_map; |
8a52f00a | 2778 | extern Lisp_Object Qimage, Qtext, Qboth, Qboth_horiz, Qtext_image_horiz; |
89dc303e | 2779 | extern Lisp_Object Qspace, Qcenter, QCalign_to; |
99f3388e DN |
2780 | extern Lisp_Object Qbar, Qhbar, Qbox, Qhollow; |
2781 | extern Lisp_Object Qleft_margin, Qright_margin; | |
b932f8b1 | 2782 | extern Lisp_Object Qglyphless_char; |
89dc303e | 2783 | extern Lisp_Object QCdata, QCfile; |
99f3388e | 2784 | extern Lisp_Object QCmap; |
e6cba650 | 2785 | extern Lisp_Object Qrisky_local_variable; |
b932f8b1 | 2786 | extern struct frame *last_glyphless_glyph_frame; |
d311d28c | 2787 | extern int last_glyphless_glyph_face_id; |
b932f8b1 | 2788 | extern int last_glyphless_glyph_merged_face_id; |
99f3388e | 2789 | extern int noninteractive_need_newline; |
986113df | 2790 | extern Lisp_Object echo_area_buffer[2]; |
89dc303e | 2791 | extern void add_to_log (const char *, Lisp_Object, Lisp_Object); |
383e0970 J |
2792 | extern void check_message_stack (void); |
2793 | extern void setup_echo_area_for_printing (int); | |
2794 | extern int push_message (void); | |
2795 | extern Lisp_Object pop_message_unwind (Lisp_Object); | |
2796 | extern Lisp_Object restore_message_unwind (Lisp_Object); | |
383e0970 J |
2797 | extern void restore_message (void); |
2798 | extern Lisp_Object current_message (void); | |
383e0970 | 2799 | extern void clear_message (int, int); |
1e973bc7 | 2800 | extern void message (const char *, ...) ATTRIBUTE_FORMAT_PRINTF (1, 2); |
a8fe7202 AS |
2801 | extern void message1 (const char *); |
2802 | extern void message1_nolog (const char *); | |
d311d28c PE |
2803 | extern void message2 (const char *, ptrdiff_t, int); |
2804 | extern void message2_nolog (const char *, ptrdiff_t, int); | |
2805 | extern void message3 (Lisp_Object, ptrdiff_t, int); | |
2806 | extern void message3_nolog (Lisp_Object, ptrdiff_t, int); | |
2807 | extern void message_dolog (const char *, ptrdiff_t, int, int); | |
a8fe7202 | 2808 | extern void message_with_string (const char *, Lisp_Object, int); |
383e0970 J |
2809 | extern void message_log_maybe_newline (void); |
2810 | extern void update_echo_area (void); | |
d311d28c | 2811 | extern void truncate_echo_area (ptrdiff_t); |
383e0970 | 2812 | extern void redisplay (void); |
383e0970 J |
2813 | extern void redisplay_preserve_echo_area (int); |
2814 | extern void prepare_menu_bars (void); | |
c4bf5bc3 | 2815 | |
383e0970 J |
2816 | void set_frame_cursor_types (struct frame *, Lisp_Object); |
2817 | extern void syms_of_xdisp (void); | |
2818 | extern void init_xdisp (void); | |
2819 | extern Lisp_Object safe_eval (Lisp_Object); | |
d311d28c | 2820 | extern int pos_visible_p (struct window *, ptrdiff_t, int *, |
383e0970 | 2821 | int *, int *, int *, int *, int *); |
c98adc1b | 2822 | |
637fa988 | 2823 | /* Defined in xsettings.c */ |
383e0970 | 2824 | extern void syms_of_xsettings (void); |
637fa988 | 2825 | |
15b0ced5 | 2826 | /* Defined in vm-limit.c. */ |
261cb4bb | 2827 | extern void memory_warnings (void *, void (*warnfun) (const char *)); |
9043c90a | 2828 | |
3cfe6dfd | 2829 | /* Defined in alloc.c */ |
383e0970 | 2830 | extern void check_pure_size (void); |
413d18e7 | 2831 | extern void allocate_string_data (struct Lisp_String *, EMACS_INT, EMACS_INT); |
383e0970 J |
2832 | extern void reset_malloc_hooks (void); |
2833 | extern void uninterrupt_malloc (void); | |
a8fe7202 | 2834 | extern void malloc_warning (const char *); |
531b0165 | 2835 | extern void memory_full (size_t) NO_RETURN; |
d311d28c | 2836 | extern void buffer_memory_full (ptrdiff_t) NO_RETURN; |
383e0970 J |
2837 | extern int survives_gc_p (Lisp_Object); |
2838 | extern void mark_object (Lisp_Object); | |
69003fd8 | 2839 | #if defined REL_ALLOC && !defined SYSTEM_MALLOC |
84dfc8a7 | 2840 | extern void refill_memory_reserve (void); |
69003fd8 | 2841 | #endif |
50c77428 | 2842 | extern const char *pending_malloc_warning; |
89dc303e | 2843 | extern Lisp_Object *stack_base; |
2f69f2ec | 2844 | EXFUN (Fcons, 2); |
2f7c71a1 AS |
2845 | extern Lisp_Object list1 (Lisp_Object); |
2846 | extern Lisp_Object list2 (Lisp_Object, Lisp_Object); | |
2847 | extern Lisp_Object list3 (Lisp_Object, Lisp_Object, Lisp_Object); | |
2848 | extern Lisp_Object list4 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); | |
2849 | extern Lisp_Object list5 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, | |
2850 | Lisp_Object); | |
2f69f2ec RS |
2851 | EXFUN (Flist, MANY); |
2852 | EXFUN (Fmake_list, 2); | |
383e0970 | 2853 | extern Lisp_Object allocate_misc (void); |
2f69f2ec RS |
2854 | EXFUN (Fmake_vector, 2); |
2855 | EXFUN (Fvector, MANY); | |
2856 | EXFUN (Fmake_symbol, 1); | |
2857 | EXFUN (Fmake_marker, 0); | |
cb93f9be | 2858 | extern void string_overflow (void) NO_RETURN; |
2f69f2ec | 2859 | EXFUN (Fmake_string, 2); |
383e0970 | 2860 | extern Lisp_Object build_string (const char *); |
d311d28c PE |
2861 | extern Lisp_Object make_string (const char *, ptrdiff_t); |
2862 | extern Lisp_Object make_unibyte_string (const char *, ptrdiff_t); | |
2863 | extern Lisp_Object make_multibyte_string (const char *, ptrdiff_t, ptrdiff_t); | |
383e0970 | 2864 | extern Lisp_Object make_event_array (int, Lisp_Object *); |
413d18e7 EZ |
2865 | extern Lisp_Object make_uninit_string (EMACS_INT); |
2866 | extern Lisp_Object make_uninit_multibyte_string (EMACS_INT, EMACS_INT); | |
d311d28c | 2867 | extern Lisp_Object make_string_from_bytes (const char *, ptrdiff_t, ptrdiff_t); |
14162469 | 2868 | extern Lisp_Object make_specified_string (const char *, |
d311d28c | 2869 | ptrdiff_t, ptrdiff_t, int); |
2f69f2ec | 2870 | EXFUN (Fpurecopy, 1); |
d311d28c | 2871 | extern Lisp_Object make_pure_string (const char *, ptrdiff_t, ptrdiff_t, int); |
5e2327cf | 2872 | extern Lisp_Object make_pure_c_string (const char *data); |
383e0970 | 2873 | extern Lisp_Object pure_cons (Lisp_Object, Lisp_Object); |
d311d28c | 2874 | extern Lisp_Object make_pure_vector (ptrdiff_t); |
2f69f2ec RS |
2875 | EXFUN (Fgarbage_collect, 0); |
2876 | EXFUN (Fmake_byte_code, MANY); | |
2877 | EXFUN (Fmake_bool_vector, 2); | |
7f73dc9d | 2878 | extern Lisp_Object Qchar_table_extra_slots; |
383e0970 | 2879 | extern struct Lisp_Vector *allocate_vector (EMACS_INT); |
d311d28c | 2880 | extern struct Lisp_Vector *allocate_pseudovector (int memlen, int lisplen, int tag); |
30f95089 SM |
2881 | #define ALLOCATE_PSEUDOVECTOR(typ,field,tag) \ |
2882 | ((typ*) \ | |
2883 | allocate_pseudovector \ | |
2884 | (VECSIZE (typ), PSEUDOVECSIZE (typ, field), tag)) | |
383e0970 J |
2885 | extern struct Lisp_Hash_Table *allocate_hash_table (void); |
2886 | extern struct window *allocate_window (void); | |
2887 | extern struct frame *allocate_frame (void); | |
2888 | extern struct Lisp_Process *allocate_process (void); | |
2889 | extern struct terminal *allocate_terminal (void); | |
4d57802e | 2890 | extern int gc_in_progress; |
95684592 | 2891 | extern int abort_on_gc; |
383e0970 J |
2892 | extern Lisp_Object make_float (double); |
2893 | extern void display_malloc_warning (void); | |
d311d28c | 2894 | extern ptrdiff_t inhibit_garbage_collection (void); |
9c4c5f81 | 2895 | extern Lisp_Object make_save_value (void *, ptrdiff_t); |
383e0970 J |
2896 | extern void free_marker (Lisp_Object); |
2897 | extern void free_cons (struct Lisp_Cons *); | |
2898 | extern void init_alloc_once (void); | |
2899 | extern void init_alloc (void); | |
2900 | extern void syms_of_alloc (void); | |
2901 | extern struct buffer * allocate_buffer (void); | |
2902 | extern int valid_lisp_object_p (Lisp_Object); | |
3cfe6dfd | 2903 | |
a041960a PE |
2904 | #ifdef REL_ALLOC |
2905 | /* Defined in ralloc.c */ | |
2906 | extern void *r_alloc (void **, size_t); | |
2907 | extern void r_alloc_free (void **); | |
2908 | extern void *r_re_alloc (void **, size_t); | |
2909 | extern void r_alloc_reset_variable (void **, void **); | |
57b81a9f | 2910 | extern void r_alloc_inhibit_buffer_relocation (int); |
a041960a PE |
2911 | #endif |
2912 | ||
1842abb2 KH |
2913 | /* Defined in chartab.c */ |
2914 | EXFUN (Fmake_char_table, 2); | |
1842abb2 KH |
2915 | EXFUN (Fset_char_table_parent, 2); |
2916 | EXFUN (Fchar_table_extra_slot, 2); | |
2917 | EXFUN (Fset_char_table_extra_slot, 3); | |
1842abb2 | 2918 | EXFUN (Fset_char_table_range, 3); |
d0827857 | 2919 | EXFUN (Foptimize_char_table, 2); |
383e0970 | 2920 | extern Lisp_Object copy_char_table (Lisp_Object); |
383e0970 J |
2921 | extern Lisp_Object char_table_ref (Lisp_Object, int); |
2922 | extern Lisp_Object char_table_ref_and_range (Lisp_Object, int, | |
2923 | int *, int *); | |
2924 | extern Lisp_Object char_table_set (Lisp_Object, int, Lisp_Object); | |
2925 | extern Lisp_Object char_table_set_range (Lisp_Object, int, int, | |
2926 | Lisp_Object); | |
2927 | extern int char_table_translate (Lisp_Object, int); | |
2928 | extern void map_char_table (void (*) (Lisp_Object, Lisp_Object, | |
2929 | Lisp_Object), | |
2930 | Lisp_Object, Lisp_Object, Lisp_Object); | |
e6cba650 DN |
2931 | extern void map_char_table_for_charset (void (*c_function) (Lisp_Object, Lisp_Object), |
2932 | Lisp_Object, Lisp_Object, | |
2933 | Lisp_Object, struct charset *, | |
2934 | unsigned, unsigned); | |
5cc7f7af | 2935 | extern Lisp_Object uniprop_table (Lisp_Object); |
383e0970 | 2936 | extern void syms_of_chartab (void); |
1842abb2 | 2937 | |
3cfe6dfd JB |
2938 | /* Defined in print.c */ |
2939 | extern Lisp_Object Vprin1_to_string_buffer; | |
42c8bc9b | 2940 | extern void debug_print (Lisp_Object) EXTERNALLY_VISIBLE; |
2f69f2ec RS |
2941 | EXFUN (Fprin1, 2); |
2942 | EXFUN (Fprin1_to_string, 2); | |
2f69f2ec RS |
2943 | EXFUN (Fterpri, 1); |
2944 | EXFUN (Fprint, 2); | |
2945 | EXFUN (Ferror_message_string, 1); | |
29208e82 | 2946 | extern Lisp_Object Qstandard_output; |
9453ea7b | 2947 | extern Lisp_Object Qexternal_debugging_output; |
383e0970 | 2948 | extern void temp_output_buffer_setup (const char *); |
29208e82 | 2949 | extern int print_level; |
3cfe6dfd | 2950 | extern Lisp_Object Qprint_escape_newlines; |
a8fe7202 | 2951 | extern void write_string (const char *, int); |
a8fe7202 AS |
2952 | extern void print_error_message (Lisp_Object, Lisp_Object, const char *, |
2953 | Lisp_Object); | |
526a2be7 | 2954 | extern Lisp_Object internal_with_output_to_temp_buffer |
383e0970 | 2955 | (const char *, Lisp_Object (*) (Lisp_Object), Lisp_Object); |
6e8e6bf2 | 2956 | #define FLOAT_TO_STRING_BUFSIZE 350 |
57ace6d0 | 2957 | extern void float_to_string (char *, double); |
383e0970 | 2958 | extern void syms_of_print (void); |
526a2be7 | 2959 | |
e6c3da20 | 2960 | /* Defined in doprnt.c */ |
c2d1e36d PE |
2961 | extern ptrdiff_t doprnt (char *, ptrdiff_t, const char *, const char *, |
2962 | va_list); | |
62f19c19 PE |
2963 | extern ptrdiff_t esprintf (char *, char const *, ...) |
2964 | ATTRIBUTE_FORMAT_PRINTF (2, 3); | |
62f19c19 PE |
2965 | extern ptrdiff_t exprintf (char **, ptrdiff_t *, char const *, ptrdiff_t, |
2966 | char const *, ...) | |
2967 | ATTRIBUTE_FORMAT_PRINTF (5, 6); | |
2968 | extern ptrdiff_t evxprintf (char **, ptrdiff_t *, char const *, ptrdiff_t, | |
2969 | char const *, va_list) | |
2970 | ATTRIBUTE_FORMAT_PRINTF (5, 0); | |
e6c3da20 | 2971 | |
ea6c7ae6 | 2972 | /* Defined in lread.c. */ |
3cfe6dfd | 2973 | extern Lisp_Object Qvariable_documentation, Qstandard_input; |
99f3388e | 2974 | extern Lisp_Object Qbackquote, Qcomma, Qcomma_at, Qcomma_dot, Qfunction; |
2f69f2ec RS |
2975 | EXFUN (Fread, 1); |
2976 | EXFUN (Fread_from_string, 3); | |
2977 | EXFUN (Fintern, 2); | |
2978 | EXFUN (Fintern_soft, 2); | |
16a97296 | 2979 | EXFUN (Funintern, 2); |
5d8c7983 | 2980 | EXFUN (Fload, 5); |
3ceb69d9 | 2981 | EXFUN (Fget_load_suffixes, 0); |
0601ad0f CY |
2982 | EXFUN (Fread_char, 3); |
2983 | EXFUN (Fread_event, 3); | |
383e0970 J |
2984 | extern Lisp_Object check_obarray (Lisp_Object); |
2985 | extern Lisp_Object intern (const char *); | |
5e2327cf | 2986 | extern Lisp_Object intern_c_string (const char *); |
d311d28c | 2987 | extern Lisp_Object oblookup (Lisp_Object, const char *, ptrdiff_t, ptrdiff_t); |
c5e3de70 | 2988 | #define LOADHIST_ATTACH(x) \ |
d6d23852 SM |
2989 | do { \ |
2990 | if (initialized) Vcurrent_load_list = Fcons (x, Vcurrent_load_list); \ | |
2991 | } while (0) | |
383e0970 J |
2992 | extern int openp (Lisp_Object, Lisp_Object, Lisp_Object, |
2993 | Lisp_Object *, Lisp_Object); | |
452f4150 | 2994 | Lisp_Object string_to_number (char const *, int, int); |
383e0970 J |
2995 | extern void map_obarray (Lisp_Object, void (*) (Lisp_Object, Lisp_Object), |
2996 | Lisp_Object); | |
a8fe7202 | 2997 | extern void dir_warning (const char *, Lisp_Object); |
383e0970 J |
2998 | extern void close_load_descs (void); |
2999 | extern void init_obarray (void); | |
3000 | extern void init_lread (void); | |
3001 | extern void syms_of_lread (void); | |
3cfe6dfd | 3002 | |
f6d62986 | 3003 | /* Defined in eval.c. */ |
61b108cc | 3004 | extern Lisp_Object Qautoload, Qexit, Qinteractive, Qcommandp, Qmacro; |
ed008a6d | 3005 | extern Lisp_Object Qinhibit_quit, Qclosure; |
955cbe7b | 3006 | extern Lisp_Object Qand_rest; |
3cfe6dfd | 3007 | extern Lisp_Object Vautoload_queue; |
fab88cb7 | 3008 | extern Lisp_Object Vsignaling_function; |
d1f55f16 | 3009 | extern Lisp_Object inhibit_lisp_code; |
21c5a64e | 3010 | extern int handling_signal; |
244ed907 PE |
3011 | #if BYTE_MARK_STACK |
3012 | extern struct catchtag *catchlist; | |
3013 | extern struct handler *handlerlist; | |
3014 | #endif | |
f1b6e5fc SM |
3015 | /* To run a normal hook, use the appropriate function from the list below. |
3016 | The calling convention: | |
3017 | ||
846d69ac | 3018 | if (!NILP (Vrun_hooks)) |
f1b6e5fc SM |
3019 | call1 (Vrun_hooks, Qmy_funny_hook); |
3020 | ||
3021 | should no longer be used. */ | |
3cfe6dfd | 3022 | extern Lisp_Object Vrun_hooks; |
2f69f2ec RS |
3023 | EXFUN (Frun_hooks, MANY); |
3024 | EXFUN (Frun_hook_with_args, MANY); | |
2f69f2ec | 3025 | EXFUN (Frun_hook_with_args_until_failure, MANY); |
383e0970 | 3026 | extern void run_hook_with_args_2 (Lisp_Object, Lisp_Object, Lisp_Object); |
f66c7cf8 | 3027 | extern Lisp_Object run_hook_with_args (ptrdiff_t nargs, Lisp_Object *args, |
f6d62986 | 3028 | Lisp_Object (*funcall) |
f66c7cf8 | 3029 | (ptrdiff_t nargs, Lisp_Object *args)); |
2f69f2ec | 3030 | EXFUN (Fprogn, UNEVALLED); |
2f69f2ec | 3031 | EXFUN (Finteractive_p, 0); |
fca99116 | 3032 | EXFUN (Fthrow, 2) NO_RETURN; |
834168ef | 3033 | EXFUN (Fsignal, 2); |
383e0970 J |
3034 | extern void xsignal (Lisp_Object, Lisp_Object) NO_RETURN; |
3035 | extern void xsignal0 (Lisp_Object) NO_RETURN; | |
3036 | extern void xsignal1 (Lisp_Object, Lisp_Object) NO_RETURN; | |
3037 | extern void xsignal2 (Lisp_Object, Lisp_Object, Lisp_Object) NO_RETURN; | |
3038 | extern void xsignal3 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object) NO_RETURN; | |
a8fe7202 | 3039 | extern void signal_error (const char *, Lisp_Object) NO_RETURN; |
2a4d03b8 | 3040 | EXFUN (Fcommandp, 2); |
ca105506 | 3041 | EXFUN (Ffunctionp, 1); |
a0ee6f27 | 3042 | EXFUN (Feval, 2); |
defb1411 | 3043 | extern Lisp_Object eval_sub (Lisp_Object form); |
2f69f2ec RS |
3044 | EXFUN (Fapply, MANY); |
3045 | EXFUN (Ffuncall, MANY); | |
383e0970 J |
3046 | extern Lisp_Object apply1 (Lisp_Object, Lisp_Object); |
3047 | extern Lisp_Object call0 (Lisp_Object); | |
3048 | extern Lisp_Object call1 (Lisp_Object, Lisp_Object); | |
3049 | extern Lisp_Object call2 (Lisp_Object, Lisp_Object, Lisp_Object); | |
3050 | extern Lisp_Object call3 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); | |
3051 | extern Lisp_Object call4 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); | |
3052 | extern Lisp_Object call5 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); | |
3053 | extern Lisp_Object call6 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); | |
3054 | extern Lisp_Object call7 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); | |
2f69f2ec | 3055 | EXFUN (Fdo_auto_save, 2); |
383e0970 J |
3056 | extern Lisp_Object internal_catch (Lisp_Object, Lisp_Object (*) (Lisp_Object), Lisp_Object); |
3057 | extern Lisp_Object internal_lisp_condition_case (Lisp_Object, Lisp_Object, Lisp_Object); | |
3058 | extern Lisp_Object internal_condition_case (Lisp_Object (*) (void), Lisp_Object, Lisp_Object (*) (Lisp_Object)); | |
3059 | extern Lisp_Object internal_condition_case_1 (Lisp_Object (*) (Lisp_Object), Lisp_Object, Lisp_Object, Lisp_Object (*) (Lisp_Object)); | |
3060 | extern Lisp_Object internal_condition_case_2 (Lisp_Object (*) (Lisp_Object, Lisp_Object), Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object (*) (Lisp_Object)); | |
f66c7cf8 | 3061 | extern Lisp_Object internal_condition_case_n (Lisp_Object (*) (ptrdiff_t, Lisp_Object *), ptrdiff_t, Lisp_Object *, Lisp_Object, Lisp_Object (*) (Lisp_Object)); |
383e0970 J |
3062 | extern void specbind (Lisp_Object, Lisp_Object); |
3063 | extern void record_unwind_protect (Lisp_Object (*) (Lisp_Object), Lisp_Object); | |
d311d28c | 3064 | extern Lisp_Object unbind_to (ptrdiff_t, Lisp_Object); |
5fdb398c PE |
3065 | extern void error (const char *, ...) NO_RETURN ATTRIBUTE_FORMAT_PRINTF (1, 2); |
3066 | extern void verror (const char *, va_list) | |
3067 | NO_RETURN ATTRIBUTE_FORMAT_PRINTF (1, 0); | |
383e0970 J |
3068 | extern void do_autoload (Lisp_Object, Lisp_Object); |
3069 | extern Lisp_Object un_autoload (Lisp_Object); | |
383e0970 | 3070 | extern void init_eval_once (void); |
f66c7cf8 | 3071 | extern Lisp_Object safe_call (ptrdiff_t, Lisp_Object *); |
383e0970 | 3072 | extern Lisp_Object safe_call1 (Lisp_Object, Lisp_Object); |
58555d81 | 3073 | extern Lisp_Object safe_call2 (Lisp_Object, Lisp_Object, Lisp_Object); |
383e0970 | 3074 | extern void init_eval (void); |
244ed907 | 3075 | #if BYTE_MARK_STACK |
8b2c52e9 | 3076 | extern void mark_backtrace (void); |
244ed907 | 3077 | #endif |
383e0970 | 3078 | extern void syms_of_eval (void); |
3cfe6dfd | 3079 | |
a2928364 | 3080 | /* Defined in editfns.c */ |
e6cba650 | 3081 | extern Lisp_Object Qfield; |
986113df | 3082 | EXFUN (Fcurrent_message, 0); |
2f69f2ec | 3083 | EXFUN (Fgoto_char, 1); |
2f69f2ec | 3084 | EXFUN (Fpoint_max_marker, 0); |
2f69f2ec RS |
3085 | EXFUN (Fpoint, 0); |
3086 | EXFUN (Fpoint_marker, 0); | |
2f69f2ec RS |
3087 | EXFUN (Fline_beginning_position, 1); |
3088 | EXFUN (Fline_end_position, 1); | |
3089 | EXFUN (Ffollowing_char, 0); | |
3090 | EXFUN (Fprevious_char, 0); | |
3091 | EXFUN (Fchar_after, 1); | |
3092 | EXFUN (Finsert, MANY); | |
2f69f2ec | 3093 | EXFUN (Finsert_char, 3); |
383e0970 | 3094 | extern void insert1 (Lisp_Object); |
2f69f2ec RS |
3095 | EXFUN (Feolp, 0); |
3096 | EXFUN (Feobp, 0); | |
3097 | EXFUN (Fbolp, 0); | |
3098 | EXFUN (Fbobp, 0); | |
3099 | EXFUN (Fformat, MANY); | |
5010d3b8 | 3100 | EXFUN (Fmessage, MANY); |
a8fe7202 | 3101 | extern Lisp_Object format2 (const char *, Lisp_Object, Lisp_Object); |
2f69f2ec RS |
3102 | EXFUN (Fbuffer_substring, 2); |
3103 | EXFUN (Fbuffer_string, 0); | |
383e0970 J |
3104 | extern Lisp_Object save_excursion_save (void); |
3105 | extern Lisp_Object save_restriction_save (void); | |
3106 | extern Lisp_Object save_excursion_restore (Lisp_Object); | |
3107 | extern Lisp_Object save_restriction_restore (Lisp_Object); | |
2f69f2ec RS |
3108 | EXFUN (Fchar_to_string, 1); |
3109 | EXFUN (Fdelete_region, 2); | |
3110 | EXFUN (Fnarrow_to_region, 2); | |
3111 | EXFUN (Fwiden, 0); | |
3112 | EXFUN (Fuser_login_name, 1); | |
3113 | EXFUN (Fsystem_name, 0); | |
f5969ae9 | 3114 | EXFUN (Fcurrent_time, 0); |
16a97296 | 3115 | EXFUN (Fget_internal_run_time, 0); |
d311d28c PE |
3116 | extern Lisp_Object make_buffer_string (ptrdiff_t, ptrdiff_t, int); |
3117 | extern Lisp_Object make_buffer_string_both (ptrdiff_t, ptrdiff_t, ptrdiff_t, | |
3118 | ptrdiff_t, int); | |
383e0970 | 3119 | extern void init_editfns (void); |
a2928364 | 3120 | const char *get_system_name (void); |
383e0970 | 3121 | extern void syms_of_editfns (void); |
8d0941fa | 3122 | EXFUN (Fconstrain_to_field, 5); |
89512fcd | 3123 | EXFUN (Ffield_end, 3); |
a8fe7202 | 3124 | extern void set_time_zone_rule (const char *); |
3cfe6dfd | 3125 | |
78edd3b7 | 3126 | /* Defined in buffer.c */ |
383e0970 J |
3127 | extern int mouse_face_overlay_overlaps (Lisp_Object); |
3128 | extern void nsberror (Lisp_Object) NO_RETURN; | |
986113df | 3129 | EXFUN (Fset_buffer_multibyte, 1); |
2f69f2ec RS |
3130 | EXFUN (Foverlay_start, 1); |
3131 | EXFUN (Foverlay_end, 1); | |
d311d28c PE |
3132 | extern void adjust_overlays_for_insert (ptrdiff_t, ptrdiff_t); |
3133 | extern void adjust_overlays_for_delete (ptrdiff_t, ptrdiff_t); | |
3134 | extern void fix_start_end_in_overlays (ptrdiff_t, ptrdiff_t); | |
383e0970 J |
3135 | extern void report_overlay_modification (Lisp_Object, Lisp_Object, int, |
3136 | Lisp_Object, Lisp_Object, Lisp_Object); | |
d311d28c | 3137 | extern int overlay_touches_p (ptrdiff_t); |
29208e82 | 3138 | extern Lisp_Object Vbuffer_alist; |
2f69f2ec RS |
3139 | EXFUN (Fget_buffer, 1); |
3140 | EXFUN (Fget_buffer_create, 1); | |
941caafe | 3141 | EXFUN (Fgenerate_new_buffer_name, 2); |
2f69f2ec | 3142 | EXFUN (Fset_buffer, 1); |
2f7c71a1 | 3143 | extern Lisp_Object set_buffer_if_live (Lisp_Object); |
2f69f2ec RS |
3144 | EXFUN (Fbarf_if_buffer_read_only, 0); |
3145 | EXFUN (Fcurrent_buffer, 0); | |
dbe7f1ef | 3146 | EXFUN (Fother_buffer, 3); |
9397e56f | 3147 | extern Lisp_Object other_buffer_safely (Lisp_Object); |
2f69f2ec RS |
3148 | EXFUN (Foverlay_get, 2); |
3149 | EXFUN (Fbuffer_modified_p, 1); | |
3150 | EXFUN (Fset_buffer_modified_p, 1); | |
3151 | EXFUN (Fkill_buffer, 1); | |
3152 | EXFUN (Fkill_all_local_variables, 0); | |
2f69f2ec RS |
3153 | EXFUN (Fbuffer_enable_undo, 1); |
3154 | EXFUN (Ferase_buffer, 0); | |
955cbe7b | 3155 | extern Lisp_Object Qpriority, Qwindow, Qbefore_string, Qafter_string; |
383e0970 | 3156 | extern Lisp_Object get_truename_buffer (Lisp_Object); |
3cfe6dfd | 3157 | extern struct buffer *all_buffers; |
2f69f2ec | 3158 | EXFUN (Fprevious_overlay_change, 1); |
d7935eb6 | 3159 | EXFUN (Fbuffer_file_name, 1); |
383e0970 J |
3160 | extern void init_buffer_once (void); |
3161 | extern void init_buffer (void); | |
3162 | extern void syms_of_buffer (void); | |
3163 | extern void keys_of_buffer (void); | |
3cfe6dfd | 3164 | |
78edd3b7 | 3165 | /* Defined in marker.c */ |
3cfe6dfd | 3166 | |
2f69f2ec RS |
3167 | EXFUN (Fmarker_position, 1); |
3168 | EXFUN (Fmarker_buffer, 1); | |
3169 | EXFUN (Fcopy_marker, 2); | |
3170 | EXFUN (Fset_marker, 3); | |
d311d28c PE |
3171 | extern ptrdiff_t marker_position (Lisp_Object); |
3172 | extern ptrdiff_t marker_byte_position (Lisp_Object); | |
383e0970 | 3173 | extern void clear_charpos_cache (struct buffer *); |
d311d28c PE |
3174 | extern ptrdiff_t charpos_to_bytepos (ptrdiff_t); |
3175 | extern ptrdiff_t buf_charpos_to_bytepos (struct buffer *, ptrdiff_t); | |
3176 | extern ptrdiff_t buf_bytepos_to_charpos (struct buffer *, ptrdiff_t); | |
383e0970 J |
3177 | extern void unchain_marker (struct Lisp_Marker *marker); |
3178 | extern Lisp_Object set_marker_restricted (Lisp_Object, Lisp_Object, Lisp_Object); | |
d311d28c | 3179 | extern Lisp_Object set_marker_both (Lisp_Object, Lisp_Object, ptrdiff_t, ptrdiff_t); |
383e0970 | 3180 | extern Lisp_Object set_marker_restricted_both (Lisp_Object, Lisp_Object, |
d311d28c | 3181 | ptrdiff_t, ptrdiff_t); |
383e0970 | 3182 | extern void syms_of_marker (void); |
3cfe6dfd JB |
3183 | |
3184 | /* Defined in fileio.c */ | |
3185 | ||
3186 | extern Lisp_Object Qfile_error; | |
99f3388e | 3187 | extern Lisp_Object Qfile_exists_p; |
e6cba650 DN |
3188 | extern Lisp_Object Qfile_directory_p; |
3189 | extern Lisp_Object Qinsert_file_contents; | |
7684e57b | 3190 | extern Lisp_Object Qfile_name_history; |
2f69f2ec RS |
3191 | EXFUN (Ffind_file_name_handler, 2); |
3192 | EXFUN (Ffile_name_as_directory, 1); | |
3193 | EXFUN (Fexpand_file_name, 2); | |
3194 | EXFUN (Ffile_name_nondirectory, 1); | |
3195 | EXFUN (Fsubstitute_in_file_name, 1); | |
3196 | EXFUN (Ffile_symlink_p, 1); | |
3197 | EXFUN (Fverify_visited_file_modtime, 1); | |
3198 | EXFUN (Ffile_exists_p, 1); | |
3199 | EXFUN (Ffile_name_absolute_p, 1); | |
3200 | EXFUN (Fdirectory_file_name, 1); | |
3201 | EXFUN (Ffile_name_directory, 1); | |
383e0970 | 3202 | extern Lisp_Object expand_and_dir_to_file (Lisp_Object, Lisp_Object); |
2f69f2ec RS |
3203 | EXFUN (Ffile_accessible_directory_p, 1); |
3204 | EXFUN (Funhandled_file_name_directory, 1); | |
3205 | EXFUN (Ffile_directory_p, 1); | |
b4e187e2 | 3206 | EXFUN (Fwrite_region, 7); |
2f69f2ec | 3207 | EXFUN (Ffile_readable_p, 1); |
fda1acc5 | 3208 | EXFUN (Fread_file_name, 6); |
383e0970 J |
3209 | extern Lisp_Object close_file_unwind (Lisp_Object); |
3210 | extern Lisp_Object restore_point_unwind (Lisp_Object); | |
3211 | extern void report_file_error (const char *, Lisp_Object) NO_RETURN; | |
3212 | extern int internal_delete_file (Lisp_Object); | |
3213 | extern void syms_of_fileio (void); | |
3214 | extern Lisp_Object make_temp_name (Lisp_Object, int); | |
b86cfd28 | 3215 | extern Lisp_Object Qdelete_file; |
3cfe6dfd | 3216 | |
78edd3b7 | 3217 | /* Defined in search.c */ |
383e0970 | 3218 | extern void shrink_regexp_cache (void); |
2f69f2ec | 3219 | EXFUN (Fstring_match, 3); |
383e0970 | 3220 | extern void restore_search_regs (void); |
5fe2b5a5 KS |
3221 | EXFUN (Fmatch_data, 3); |
3222 | EXFUN (Fset_match_data, 2); | |
2f69f2ec RS |
3223 | EXFUN (Fmatch_beginning, 1); |
3224 | EXFUN (Fmatch_end, 1); | |
383e0970 | 3225 | extern void record_unwind_save_match_data (void); |
dbd37a95 PE |
3226 | struct re_registers; |
3227 | extern struct re_pattern_buffer *compile_pattern (Lisp_Object, | |
3228 | struct re_registers *, | |
3229 | Lisp_Object, int, int); | |
d311d28c PE |
3230 | extern ptrdiff_t fast_string_match (Lisp_Object, Lisp_Object); |
3231 | extern ptrdiff_t fast_c_string_match_ignore_case (Lisp_Object, const char *); | |
3232 | extern ptrdiff_t fast_string_match_ignore_case (Lisp_Object, Lisp_Object); | |
3233 | extern ptrdiff_t fast_looking_at (Lisp_Object, ptrdiff_t, ptrdiff_t, | |
3234 | ptrdiff_t, ptrdiff_t, Lisp_Object); | |
3235 | extern ptrdiff_t scan_buffer (int, ptrdiff_t, ptrdiff_t, ptrdiff_t, | |
3236 | ptrdiff_t *, int); | |
3237 | extern EMACS_INT scan_newline (ptrdiff_t, ptrdiff_t, ptrdiff_t, ptrdiff_t, | |
c098fdb8 | 3238 | EMACS_INT, int); |
d311d28c PE |
3239 | extern ptrdiff_t find_next_newline (ptrdiff_t, int); |
3240 | extern ptrdiff_t find_next_newline_no_quit (ptrdiff_t, ptrdiff_t); | |
3241 | extern ptrdiff_t find_before_next_newline (ptrdiff_t, ptrdiff_t, ptrdiff_t); | |
383e0970 J |
3242 | extern void syms_of_search (void); |
3243 | extern void clear_regexp_cache (void); | |
3cfe6dfd | 3244 | |
78edd3b7 | 3245 | /* Defined in minibuf.c */ |
3cfe6dfd | 3246 | |
e6cba650 | 3247 | extern Lisp_Object Qcompletion_ignore_case; |
99f3388e | 3248 | extern Lisp_Object Vminibuffer_list; |
3cfe6dfd | 3249 | extern Lisp_Object last_minibuf_string; |
5593f7e3 | 3250 | EXFUN (Fcompleting_read, 8); |
2c960667 | 3251 | EXFUN (Fread_from_minibuffer, 7); |
2f69f2ec RS |
3252 | EXFUN (Fread_variable, 2); |
3253 | EXFUN (Fread_buffer, 3); | |
3254 | EXFUN (Fread_minibuffer, 2); | |
3255 | EXFUN (Feval_minibuffer, 2); | |
5593f7e3 | 3256 | EXFUN (Fread_string, 5); |
f85064bd | 3257 | EXFUN (Fassoc_string, 3); |
62f19c19 | 3258 | extern Lisp_Object get_minibuffer (EMACS_INT); |
383e0970 J |
3259 | extern void init_minibuf_once (void); |
3260 | extern void syms_of_minibuf (void); | |
3cfe6dfd JB |
3261 | |
3262 | /* Defined in callint.c */ | |
3263 | ||
29208e82 | 3264 | extern Lisp_Object Qminus, Qplus; |
99f3388e | 3265 | extern Lisp_Object Qwhen; |
7fd61057 | 3266 | extern Lisp_Object Qcall_interactively, Qmouse_leave_buffer_hook; |
2f69f2ec | 3267 | EXFUN (Fprefix_numeric_value, 1); |
383e0970 | 3268 | extern void syms_of_callint (void); |
3cfe6dfd | 3269 | |
78edd3b7 | 3270 | /* Defined in casefiddle.c */ |
3cfe6dfd | 3271 | |
99f3388e | 3272 | extern Lisp_Object Qidentity; |
2f69f2ec RS |
3273 | EXFUN (Fdowncase, 1); |
3274 | EXFUN (Fupcase, 1); | |
2f69f2ec RS |
3275 | EXFUN (Fupcase_region, 2); |
3276 | EXFUN (Fupcase_initials, 1); | |
3277 | EXFUN (Fupcase_initials_region, 2); | |
383e0970 J |
3278 | extern void syms_of_casefiddle (void); |
3279 | extern void keys_of_casefiddle (void); | |
3cfe6dfd | 3280 | |
78edd3b7 | 3281 | /* Defined in casetab.c */ |
1747fb16 | 3282 | |
2f69f2ec RS |
3283 | EXFUN (Fset_case_table, 1); |
3284 | EXFUN (Fset_standard_case_table, 1); | |
383e0970 J |
3285 | extern void init_casetab_once (void); |
3286 | extern void syms_of_casetab (void); | |
1747fb16 | 3287 | |
78edd3b7 | 3288 | /* Defined in keyboard.c */ |
3cfe6dfd | 3289 | |
54cd1651 | 3290 | extern Lisp_Object echo_message_buffer; |
417750de | 3291 | extern struct kboard *echo_kboard; |
383e0970 | 3292 | extern void cancel_echoing (void); |
1425dcb6 | 3293 | extern Lisp_Object Qdisabled, QCfilter; |
955cbe7b PE |
3294 | extern Lisp_Object Qup, Qdown, Qbottom; |
3295 | extern Lisp_Object Qtop; | |
8e7bd231 | 3296 | extern int input_pending; |
2f69f2ec RS |
3297 | EXFUN (Fdiscard_input, 0); |
3298 | EXFUN (Frecursive_edit, 0); | |
ccaf0336 | 3299 | EXFUN (Ftop_level, 0) NO_RETURN; |
383e0970 J |
3300 | extern Lisp_Object menu_bar_items (Lisp_Object); |
3301 | extern Lisp_Object tool_bar_items (Lisp_Object, int *); | |
383e0970 | 3302 | extern void discard_mouse_events (void); |
2f69f2ec | 3303 | EXFUN (Fevent_convert_list, 1); |
e271fdb3 | 3304 | EXFUN (Fread_key_sequence, 5); |
a712a8c3 | 3305 | EXFUN (Fset_input_interrupt_mode, 1); |
526a2be7 | 3306 | EXFUN (Fset_input_mode, 4); |
58555d81 | 3307 | extern Lisp_Object pending_funcalls; |
383e0970 J |
3308 | extern int detect_input_pending (void); |
3309 | extern int detect_input_pending_ignore_squeezables (void); | |
3310 | extern int detect_input_pending_run_timers (int); | |
3311 | extern void safe_run_hooks (Lisp_Object); | |
a8fe7202 | 3312 | extern void cmd_error_internal (Lisp_Object, const char *); |
383e0970 J |
3313 | extern Lisp_Object command_loop_1 (void); |
3314 | extern Lisp_Object recursive_edit_1 (void); | |
3315 | extern void record_auto_save (void); | |
8a1414fa | 3316 | #ifdef SIGDANGER |
4752793e | 3317 | extern void force_auto_save_soon (void); |
8a1414fa | 3318 | #endif |
383e0970 J |
3319 | extern void init_keyboard (void); |
3320 | extern void syms_of_keyboard (void); | |
3321 | extern void keys_of_keyboard (void); | |
3cfe6dfd | 3322 | |
78edd3b7 | 3323 | /* Defined in indent.c */ |
2f69f2ec RS |
3324 | EXFUN (Fvertical_motion, 2); |
3325 | EXFUN (Findent_to, 2); | |
2f69f2ec | 3326 | EXFUN (Fmove_to_column, 2); |
d311d28c | 3327 | extern ptrdiff_t current_column (void); |
383e0970 | 3328 | extern void invalidate_current_column (void); |
d311d28c | 3329 | extern int indented_beyond_p (ptrdiff_t, ptrdiff_t, EMACS_INT); |
383e0970 | 3330 | extern void syms_of_indent (void); |
3cfe6dfd | 3331 | |
78edd3b7 | 3332 | /* Defined in frame.c */ |
a433994a | 3333 | #ifdef HAVE_WINDOW_SYSTEM |
a433994a | 3334 | #endif /* HAVE_WINDOW_SYSTEM */ |
e6cba650 | 3335 | extern Lisp_Object Qonly; |
362fb47a | 3336 | extern Lisp_Object Qvisible; |
383e0970 J |
3337 | extern void store_frame_param (struct frame *, Lisp_Object, Lisp_Object); |
3338 | extern void store_in_alist (Lisp_Object *, Lisp_Object, Lisp_Object); | |
3339 | extern Lisp_Object do_switch_frame (Lisp_Object, int, int, Lisp_Object); | |
81626931 | 3340 | #if HAVE_NS |
383e0970 | 3341 | extern Lisp_Object get_frame_param (struct frame *, Lisp_Object); |
81626931 | 3342 | #endif |
383e0970 | 3343 | extern Lisp_Object frame_buffer_predicate (Lisp_Object); |
9e61f0d7 | 3344 | EXFUN (Fselect_frame, 2); |
2f69f2ec | 3345 | EXFUN (Fselected_frame, 0); |
2f69f2ec | 3346 | EXFUN (Fmake_frame_visible, 1); |
2f69f2ec | 3347 | EXFUN (Ficonify_frame, 1); |
4560730a | 3348 | EXFUN (Fframe_parameter, 2); |
2f69f2ec | 3349 | EXFUN (Fmodify_frame_parameters, 2); |
2f69f2ec RS |
3350 | EXFUN (Fraise_frame, 1); |
3351 | EXFUN (Fredirect_frame_focus, 2); | |
383e0970 | 3352 | extern void frames_discard_buffer (Lisp_Object); |
383e0970 | 3353 | extern void syms_of_frame (void); |
3cfe6dfd | 3354 | |
78edd3b7 | 3355 | /* Defined in emacs.c */ |
99f3388e DN |
3356 | extern char **initial_argv; |
3357 | extern int initial_argc; | |
5e617bc2 | 3358 | #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS) |
89dc303e DN |
3359 | extern int display_arg; |
3360 | #endif | |
a8fe7202 | 3361 | extern Lisp_Object decode_env_path (const char *, const char *); |
2c668b9a | 3362 | extern Lisp_Object empty_unibyte_string, empty_multibyte_string; |
e6cba650 | 3363 | extern Lisp_Object Qfile_name_handler_alist; |
35f08c38 | 3364 | #ifdef FLOAT_CATCH_SIGILL |
9af30bdf | 3365 | extern void fatal_error_signal (int); |
35f08c38 | 3366 | #endif |
6c07aac2 | 3367 | extern Lisp_Object Qkill_emacs; |
89dc303e | 3368 | EXFUN (Fkill_emacs, 1) NO_RETURN; |
68c45bf0 | 3369 | #if HAVE_SETLOCALE |
383e0970 J |
3370 | void fixup_locale (void); |
3371 | void synchronize_system_messages_locale (void); | |
3372 | void synchronize_system_time_locale (void); | |
68c45bf0 PE |
3373 | #else |
3374 | #define setlocale(category, locale) | |
3375 | #define fixup_locale() | |
ca9c0567 PE |
3376 | #define synchronize_system_messages_locale() |
3377 | #define synchronize_system_time_locale() | |
68c45bf0 | 3378 | #endif |
383e0970 | 3379 | void shut_down_emacs (int, int, Lisp_Object); |
78edd3b7 | 3380 | /* Nonzero means don't do interactive redisplay and don't change tty modes. */ |
3cfe6dfd | 3381 | extern int noninteractive; |
ff808935 | 3382 | |
66b7b0fe GM |
3383 | /* Nonzero means remove site-lisp directories from load-path. */ |
3384 | extern int no_site_lisp; | |
3385 | ||
ff808935 DN |
3386 | /* Pipe used to send exit notification to the daemon parent at |
3387 | startup. */ | |
3388 | extern int daemon_pipe[2]; | |
3389 | #define IS_DAEMON (daemon_pipe[1] != 0) | |
3390 | ||
78edd3b7 | 3391 | /* Nonzero means don't do use window-system-specific display code. */ |
3cfe6dfd | 3392 | extern int inhibit_window_system; |
99a3d506 | 3393 | /* Nonzero means that a filter or a sentinel is running. */ |
7074fde6 | 3394 | extern int running_asynch_code; |
3cfe6dfd | 3395 | |
6c60eb9f | 3396 | /* Defined in process.c. */ |
89dc303e | 3397 | extern Lisp_Object QCtype, Qlocal; |
2f69f2ec | 3398 | EXFUN (Fget_buffer_process, 1); |
2f69f2ec RS |
3399 | EXFUN (Fprocess_status, 1); |
3400 | EXFUN (Fkill_process, 2); | |
2f69f2ec | 3401 | EXFUN (Fwaiting_for_user_input_p, 0); |
6efad63b | 3402 | extern Lisp_Object Qprocessp; |
383e0970 J |
3403 | extern void kill_buffer_processes (Lisp_Object); |
3404 | extern int wait_reading_process_output (int, int, int, int, | |
3405 | Lisp_Object, | |
3406 | struct Lisp_Process *, | |
3407 | int); | |
3408 | extern void add_keyboard_wait_descriptor (int); | |
3409 | extern void delete_keyboard_wait_descriptor (int); | |
4475bec4 | 3410 | #ifdef HAVE_GPM |
383e0970 J |
3411 | extern void add_gpm_wait_descriptor (int); |
3412 | extern void delete_gpm_wait_descriptor (int); | |
4475bec4 | 3413 | #endif |
383e0970 J |
3414 | extern void close_process_descs (void); |
3415 | extern void init_process (void); | |
3416 | extern void syms_of_process (void); | |
3417 | extern void setup_process_coding_systems (Lisp_Object); | |
3cfe6dfd | 3418 | |
f5969ae9 | 3419 | EXFUN (Fcall_process, MANY); |
6bd8c144 PE |
3420 | extern int child_setup (int, int, int, char **, int, Lisp_Object) |
3421 | #ifndef DOS_NT | |
3422 | NO_RETURN | |
3423 | #endif | |
3424 | ; | |
383e0970 J |
3425 | extern void init_callproc_1 (void); |
3426 | extern void init_callproc (void); | |
3427 | extern void set_initial_environment (void); | |
3428 | extern void syms_of_callproc (void); | |
3cfe6dfd | 3429 | |
78edd3b7 | 3430 | /* Defined in doc.c */ |
99f3388e | 3431 | extern Lisp_Object Qfunction_documentation; |
2f69f2ec | 3432 | EXFUN (Fsubstitute_command_keys, 1); |
383e0970 J |
3433 | extern Lisp_Object read_doc_string (Lisp_Object); |
3434 | extern Lisp_Object get_doc_string (Lisp_Object, int, int); | |
3435 | extern void syms_of_doc (void); | |
3436 | extern int read_bytecode_char (int); | |
3cfe6dfd | 3437 | |
78edd3b7 | 3438 | /* Defined in bytecode.c */ |
3cfe6dfd | 3439 | extern Lisp_Object Qbytecode; |
383e0970 | 3440 | extern void syms_of_bytecode (void); |
35c7a974 | 3441 | extern struct byte_stack *byte_stack_list; |
244ed907 | 3442 | #if BYTE_MARK_STACK |
383e0970 | 3443 | extern void mark_byte_stack (void); |
b286858c | 3444 | #endif |
383e0970 | 3445 | extern void unmark_byte_stack (void); |
0ee81a0c | 3446 | extern Lisp_Object exec_byte_code (Lisp_Object, Lisp_Object, Lisp_Object, |
f66c7cf8 | 3447 | Lisp_Object, ptrdiff_t, Lisp_Object *); |
3cfe6dfd | 3448 | |
78edd3b7 | 3449 | /* Defined in macros.c */ |
3cfe6dfd | 3450 | extern Lisp_Object Qexecute_kbd_macro; |
a361276f | 3451 | EXFUN (Fexecute_kbd_macro, 3); |
35e36092 | 3452 | EXFUN (Fcancel_kbd_macro_events, 0); |
383e0970 J |
3453 | extern void init_macros (void); |
3454 | extern void syms_of_macros (void); | |
3cfe6dfd | 3455 | |
78edd3b7 | 3456 | /* Defined in undo.c */ |
89dc303e | 3457 | extern Lisp_Object Qapply; |
a387611b | 3458 | extern Lisp_Object Qinhibit_read_only; |
2f69f2ec | 3459 | EXFUN (Fundo_boundary, 0); |
383e0970 | 3460 | extern void truncate_undo_list (struct buffer *); |
d311d28c PE |
3461 | extern void record_marker_adjustment (Lisp_Object, ptrdiff_t); |
3462 | extern void record_insert (ptrdiff_t, ptrdiff_t); | |
3463 | extern void record_delete (ptrdiff_t, Lisp_Object); | |
383e0970 | 3464 | extern void record_first_change (void); |
d311d28c PE |
3465 | extern void record_change (ptrdiff_t, ptrdiff_t); |
3466 | extern void record_property_change (ptrdiff_t, ptrdiff_t, | |
c8a66ab8 | 3467 | Lisp_Object, Lisp_Object, |
383e0970 J |
3468 | Lisp_Object); |
3469 | extern void syms_of_undo (void); | |
78edd3b7 | 3470 | /* Defined in textprop.c */ |
5f6bf5fe | 3471 | extern Lisp_Object Qfont, Qmouse_face; |
c2d8811c | 3472 | extern Lisp_Object Qinsert_in_front_hooks, Qinsert_behind_hooks; |
e6cba650 DN |
3473 | extern Lisp_Object Qfront_sticky, Qrear_nonsticky; |
3474 | extern Lisp_Object Qminibuffer_prompt; | |
3475 | ||
2f69f2ec | 3476 | EXFUN (Fnext_single_property_change, 4); |
5433ffa5 | 3477 | EXFUN (Fnext_single_char_property_change, 4); |
2f69f2ec RS |
3478 | EXFUN (Fprevious_single_property_change, 4); |
3479 | EXFUN (Fget_text_property, 3); | |
3480 | EXFUN (Fput_text_property, 5); | |
2f69f2ec RS |
3481 | EXFUN (Fprevious_char_property_change, 2); |
3482 | EXFUN (Fnext_char_property_change, 2); | |
383e0970 | 3483 | extern void report_interval_modification (Lisp_Object, Lisp_Object); |
8537f1cb | 3484 | |
78edd3b7 | 3485 | /* Defined in menu.c */ |
383e0970 | 3486 | extern void syms_of_menu (void); |
febcacdd | 3487 | |
78edd3b7 | 3488 | /* Defined in xmenu.c */ |
2f69f2ec | 3489 | EXFUN (Fx_popup_menu, 2); |
897001fe | 3490 | EXFUN (Fx_popup_dialog, 3); |
383e0970 | 3491 | extern void syms_of_xmenu (void); |
526a2be7 | 3492 | |
78edd3b7 | 3493 | /* Defined in termchar.h */ |
28d7d09f KL |
3494 | struct tty_display_info; |
3495 | ||
78edd3b7 | 3496 | /* Defined in termhooks.h */ |
6ed8eeff | 3497 | struct terminal; |
28d440ab | 3498 | |
78edd3b7 | 3499 | /* Defined in sysdep.c */ |
2412f586 | 3500 | #ifndef HAVE_GET_CURRENT_DIR_NAME |
383e0970 | 3501 | extern char *get_current_dir_name (void); |
2b94e598 | 3502 | #endif |
383e0970 J |
3503 | extern void stuff_char (char c); |
3504 | extern void init_sigio (int); | |
3505 | extern void sys_subshell (void); | |
3506 | extern void sys_suspend (void); | |
3507 | extern void discard_tty_input (void); | |
3508 | extern void init_sys_modes (struct tty_display_info *); | |
3509 | extern void reset_sys_modes (struct tty_display_info *); | |
3510 | extern void init_all_sys_modes (void); | |
3511 | extern void reset_all_sys_modes (void); | |
d311d28c PE |
3512 | extern void wait_for_termination (pid_t); |
3513 | extern void interruptible_wait_for_termination (pid_t); | |
383e0970 J |
3514 | extern void flush_pending_output (int); |
3515 | extern void child_setup_tty (int); | |
3516 | extern void setup_pty (int); | |
3517 | extern int set_window_size (int, int, int); | |
ede49d71 | 3518 | extern EMACS_INT get_random (void); |
a884fdcc | 3519 | extern void seed_random (long); |
383e0970 J |
3520 | extern int emacs_open (const char *, int, int); |
3521 | extern int emacs_close (int); | |
d311d28c PE |
3522 | extern ptrdiff_t emacs_read (int, char *, ptrdiff_t); |
3523 | extern ptrdiff_t emacs_write (int, const char *, ptrdiff_t); | |
d1fdcab7 PE |
3524 | enum { READLINK_BUFSIZE = 1024 }; |
3525 | extern char *emacs_readlink (const char *, char [READLINK_BUFSIZE]); | |
526a2be7 | 3526 | |
526a2be7 | 3527 | EXFUN (Funlock_buffer, 0); |
383e0970 J |
3528 | extern void unlock_all_files (void); |
3529 | extern void lock_file (Lisp_Object); | |
3530 | extern void unlock_file (Lisp_Object); | |
3531 | extern void unlock_buffer (struct buffer *); | |
3532 | extern void syms_of_filelock (void); | |
3533 | extern void init_filelock (void); | |
15b0ced5 GM |
3534 | |
3535 | /* Defined in sound.c */ | |
383e0970 J |
3536 | extern void syms_of_sound (void); |
3537 | extern void init_sound (void); | |
46abf440 AS |
3538 | |
3539 | /* Defined in category.c */ | |
383e0970 J |
3540 | extern void init_category_once (void); |
3541 | extern Lisp_Object char_category_set (int); | |
3542 | extern void syms_of_category (void); | |
46abf440 AS |
3543 | |
3544 | /* Defined in ccl.c */ | |
383e0970 | 3545 | extern void syms_of_ccl (void); |
46abf440 AS |
3546 | |
3547 | /* Defined in dired.c */ | |
383e0970 J |
3548 | extern void syms_of_dired (void); |
3549 | extern Lisp_Object directory_files_internal (Lisp_Object, Lisp_Object, | |
3550 | Lisp_Object, Lisp_Object, | |
3551 | int, Lisp_Object); | |
46abf440 | 3552 | |
46abf440 | 3553 | /* Defined in term.c */ |
e6cba650 | 3554 | extern int *char_ins_del_vector; |
e6ca6543 | 3555 | extern void mark_ttys (void); |
383e0970 | 3556 | extern void syms_of_term (void); |
1e973bc7 PE |
3557 | extern void fatal (const char *msgid, ...) |
3558 | NO_RETURN ATTRIBUTE_FORMAT_PRINTF (1, 2); | |
46abf440 | 3559 | |
ed8dad6b | 3560 | /* Defined in terminal.c */ |
ce5b453a | 3561 | EXFUN (Fframe_terminal, 1); |
c2e42690 | 3562 | EXFUN (Fdelete_terminal, 2); |
383e0970 | 3563 | extern void syms_of_terminal (void); |
ed8dad6b | 3564 | |
b86cfd28 | 3565 | /* Defined in font.c */ |
383e0970 J |
3566 | extern void syms_of_font (void); |
3567 | extern void init_font (void); | |
b86cfd28 | 3568 | |
4f48f1ab | 3569 | #ifdef HAVE_WINDOW_SYSTEM |
46abf440 | 3570 | /* Defined in fontset.c */ |
383e0970 | 3571 | extern void syms_of_fontset (void); |
4f48f1ab YM |
3572 | |
3573 | /* Defined in xfns.c, w32fns.c, or macfns.c */ | |
99f3388e | 3574 | extern Lisp_Object Qfont_param; |
4f48f1ab | 3575 | EXFUN (Fxw_display_color_p, 1); |
c95a5008 | 3576 | EXFUN (Fx_focus_frame, 1); |
46abf440 AS |
3577 | #endif |
3578 | ||
3579 | /* Defined in xfaces.c */ | |
955cbe7b PE |
3580 | extern Lisp_Object Qdefault, Qtool_bar, Qfringe; |
3581 | extern Lisp_Object Qheader_line, Qscroll_bar, Qcursor; | |
3582 | extern Lisp_Object Qmode_line_inactive; | |
e6cba650 | 3583 | extern Lisp_Object Qface; |
89dc303e | 3584 | extern Lisp_Object Qnormal; |
0e9c8657 JB |
3585 | extern Lisp_Object QCfamily, QCweight, QCslant; |
3586 | extern Lisp_Object QCheight, QCname, QCwidth, QCforeground, QCbackground; | |
99f3388e | 3587 | extern Lisp_Object Vface_alternative_font_family_alist; |
99f3388e | 3588 | extern Lisp_Object Vface_alternative_font_registry_alist; |
8071c00f | 3589 | EXFUN (Fclear_face_cache, 1); |
86fa089e | 3590 | EXFUN (Fx_load_color_file, 1); |
383e0970 | 3591 | extern void syms_of_xfaces (void); |
46abf440 AS |
3592 | |
3593 | #ifdef HAVE_X_WINDOWS | |
3594 | /* Defined in xfns.c */ | |
383e0970 | 3595 | extern void syms_of_xfns (void); |
46abf440 | 3596 | |
e02207d4 | 3597 | /* Defined in xsmfns.c */ |
383e0970 | 3598 | extern void syms_of_xsmfns (void); |
e02207d4 | 3599 | |
46abf440 | 3600 | /* Defined in xselect.c */ |
383e0970 | 3601 | extern void syms_of_xselect (void); |
46abf440 AS |
3602 | |
3603 | /* Defined in xterm.c */ | |
383e0970 | 3604 | extern void syms_of_xterm (void); |
4f48f1ab | 3605 | #endif /* HAVE_X_WINDOWS */ |
4baa6f88 | 3606 | |
7af07b96 AS |
3607 | #ifdef HAVE_WINDOW_SYSTEM |
3608 | /* Defined in xterm.c, nsterm.m, w32term.c */ | |
3609 | extern char *x_get_keysym_name (int); | |
3610 | #endif /* HAVE_WINDOW_SYSTEM */ | |
3611 | ||
b7f34997 AS |
3612 | #ifdef MSDOS |
3613 | /* Defined in msdos.c */ | |
3614 | EXFUN (Fmsdos_downcase_filename, 1); | |
3615 | #endif | |
4f48f1ab | 3616 | |
381408e2 LMI |
3617 | #ifdef HAVE_LIBXML2 |
3618 | /* Defined in xml.c */ | |
3619 | extern void syms_of_xml (void); | |
9078ead6 | 3620 | extern void xml_cleanup_parser (void); |
381408e2 LMI |
3621 | #endif |
3622 | ||
4d0ac3d7 | 3623 | #ifdef HAVE_MENUS |
07b87a10 | 3624 | /* Defined in (x|w32)fns.c, nsfns.m... */ |
383e0970 | 3625 | extern int have_menus_p (void); |
4d0ac3d7 | 3626 | #endif |
b86cfd28 EZ |
3627 | |
3628 | #ifdef HAVE_DBUS | |
3629 | /* Defined in dbusbind.c */ | |
383e0970 | 3630 | void syms_of_dbusbind (void); |
b86cfd28 | 3631 | #endif |
36e053eb DN |
3632 | |
3633 | #ifdef DOS_NT | |
3634 | /* Defined in msdos.c, w32.c */ | |
3635 | extern char *emacs_root_dir (void); | |
3636 | #endif /* DOS_NT */ | |
83925baa | 3637 | \f |
3cfe6dfd JB |
3638 | /* Nonzero means Emacs has already been initialized. |
3639 | Used during startup to detect startup of dumped Emacs. */ | |
3640 | extern int initialized; | |
3641 | ||
3642 | extern int immediate_quit; /* Nonzero means ^G can quit instantly */ | |
3643 | ||
261cb4bb PE |
3644 | extern void *xmalloc (size_t); |
3645 | extern void *xrealloc (void *, size_t); | |
3646 | extern void xfree (void *); | |
0065d054 PE |
3647 | extern void *xnmalloc (ptrdiff_t, ptrdiff_t); |
3648 | extern void *xnrealloc (void *, ptrdiff_t, ptrdiff_t); | |
3649 | extern void *xpalloc (void *, ptrdiff_t *, ptrdiff_t, ptrdiff_t, ptrdiff_t); | |
074b6efe | 3650 | |
383e0970 | 3651 | extern char *xstrdup (const char *); |
3cfe6dfd | 3652 | |
a8fe7202 | 3653 | extern char *egetenv (const char *); |
e98227af | 3654 | |
5d6be39f | 3655 | /* Set up the name of the machine we're running on. */ |
383e0970 | 3656 | extern void init_system_name (void); |
881a5a80 RS |
3657 | |
3658 | /* Some systems (e.g., NT) use a different path separator than Unix, | |
087fc47a | 3659 | in addition to a device separator. Set the path separator |
881a5a80 RS |
3660 | to '/', and don't test for a device separator in IS_ANY_SEP. */ |
3661 | ||
881a5a80 | 3662 | #define DIRECTORY_SEP '/' |
881a5a80 RS |
3663 | #ifndef IS_DIRECTORY_SEP |
3664 | #define IS_DIRECTORY_SEP(_c_) ((_c_) == DIRECTORY_SEP) | |
3665 | #endif | |
3666 | #ifndef IS_DEVICE_SEP | |
3667 | #ifndef DEVICE_SEP | |
3668 | #define IS_DEVICE_SEP(_c_) 0 | |
3669 | #else | |
3670 | #define IS_DEVICE_SEP(_c_) ((_c_) == DEVICE_SEP) | |
3671 | #endif | |
3672 | #endif | |
3673 | #ifndef IS_ANY_SEP | |
3674 | #define IS_ANY_SEP(_c_) (IS_DIRECTORY_SEP (_c_)) | |
3675 | #endif | |
51bd4610 | 3676 | |
51bd4610 | 3677 | #define SWITCH_ENUM_CAST(x) (x) |
a32fa736 | 3678 | |
9aba6043 | 3679 | /* Use this to suppress gcc's warnings. */ |
dba65498 | 3680 | #ifdef lint |
f2ed8a70 PE |
3681 | |
3682 | /* Use CODE only if lint checking is in effect. */ | |
dba65498 | 3683 | # define IF_LINT(Code) Code |
f2ed8a70 PE |
3684 | |
3685 | /* Assume that the expression COND is true. This differs in intent | |
3686 | from 'assert', as it is a message from the programmer to the compiler. */ | |
3687 | # define lint_assume(cond) ((cond) ? (void) 0 : abort ()) | |
3688 | ||
dba65498 PE |
3689 | #else |
3690 | # define IF_LINT(Code) /* empty */ | |
f2ed8a70 | 3691 | # define lint_assume(cond) ((void) (0 && (cond))) |
dba65498 PE |
3692 | #endif |
3693 | ||
8a226de7 GM |
3694 | /* The ubiquitous min and max macros. */ |
3695 | ||
152180e3 AI |
3696 | #ifdef max |
3697 | #undef max | |
3698 | #undef min | |
3699 | #endif | |
8a226de7 GM |
3700 | #define min(a, b) ((a) < (b) ? (a) : (b)) |
3701 | #define max(a, b) ((a) > (b) ? (a) : (b)) | |
53ede3f4 | 3702 | |
555b10b0 EZ |
3703 | /* We used to use `abs', but that clashes with system headers on some |
3704 | platforms, and using a name reserved by Standard C is a bad idea | |
3705 | anyway. */ | |
5e617bc2 | 3706 | #if !defined (eabs) |
555b10b0 | 3707 | #define eabs(x) ((x) < 0 ? -(x) : (x)) |
096e8667 GM |
3708 | #endif |
3709 | ||
53ede3f4 GM |
3710 | /* Return a fixnum or float, depending on whether VAL fits in a Lisp |
3711 | fixnum. */ | |
3712 | ||
3713 | #define make_fixnum_or_float(val) \ | |
cbeff735 | 3714 | (FIXNUM_OVERFLOW_P (val) ? make_float (val) : make_number (val)) |
6b61353c | 3715 | |
e32d9872 MB |
3716 | |
3717 | /* Checks the `cycle check' variable CHECK to see if it indicates that | |
3718 | EL is part of a cycle; CHECK must be either Qnil or a value returned | |
3719 | by an earlier use of CYCLE_CHECK. SUSPICIOUS is the number of | |
3720 | elements after which a cycle might be suspected; after that many | |
3721 | elements, this macro begins consing in order to keep more precise | |
3722 | track of elements. | |
3723 | ||
3724 | Returns nil if a cycle was detected, otherwise a new value for CHECK | |
3725 | that includes EL. | |
3726 | ||
3727 | CHECK is evaluated multiple times, EL and SUSPICIOUS 0 or 1 times, so | |
3728 | the caller should make sure that's ok. */ | |
3729 | ||
3730 | #define CYCLE_CHECK(check, el, suspicious) \ | |
3731 | (NILP (check) \ | |
3732 | ? make_number (0) \ | |
3733 | : (INTEGERP (check) \ | |
3734 | ? (XFASTINT (check) < (suspicious) \ | |
3735 | ? make_number (XFASTINT (check) + 1) \ | |
3736 | : Fcons (el, Qnil)) \ | |
3737 | : (!NILP (Fmemq ((el), (check))) \ | |
3738 | ? Qnil \ | |
3739 | : Fcons ((el), (check))))) | |
3740 | ||
3741 | ||
79518a8d KS |
3742 | /* SAFE_ALLOCA normally allocates memory on the stack, but if size is |
3743 | larger than MAX_ALLOCA, use xmalloc to avoid overflowing the stack. */ | |
3744 | ||
3745 | #define MAX_ALLOCA 16*1024 | |
3746 | ||
3747 | extern Lisp_Object safe_alloca_unwind (Lisp_Object); | |
3748 | ||
3749 | #define USE_SAFE_ALLOCA \ | |
d311d28c | 3750 | ptrdiff_t sa_count = SPECPDL_INDEX (); int sa_must_free = 0 |
79518a8d | 3751 | |
a9e6bacc KS |
3752 | /* SAFE_ALLOCA allocates a simple buffer. */ |
3753 | ||
79518a8d KS |
3754 | #define SAFE_ALLOCA(buf, type, size) \ |
3755 | do { \ | |
3756 | if ((size) < MAX_ALLOCA) \ | |
3757 | buf = (type) alloca (size); \ | |
3758 | else \ | |
3759 | { \ | |
3760 | buf = (type) xmalloc (size); \ | |
a2d26660 | 3761 | sa_must_free = 1; \ |
79518a8d KS |
3762 | record_unwind_protect (safe_alloca_unwind, \ |
3763 | make_save_value (buf, 0)); \ | |
3764 | } \ | |
3765 | } while (0) | |
3766 | ||
0065d054 PE |
3767 | /* SAFE_NALLOCA sets BUF to a newly allocated array of MULTIPLIER * |
3768 | NITEMS items, each of the same type as *BUF. MULTIPLIER must | |
3769 | positive. The code is tuned for MULTIPLIER being a constant. */ | |
3770 | ||
3771 | #define SAFE_NALLOCA(buf, multiplier, nitems) \ | |
3772 | do { \ | |
3773 | if ((nitems) <= MAX_ALLOCA / sizeof *(buf) / (multiplier)) \ | |
3774 | (buf) = alloca (sizeof *(buf) * (multiplier) * (nitems)); \ | |
3775 | else \ | |
3776 | { \ | |
3777 | (buf) = xnmalloc (nitems, sizeof *(buf) * (multiplier)); \ | |
3778 | sa_must_free = 1; \ | |
3779 | record_unwind_protect (safe_alloca_unwind, \ | |
3780 | make_save_value (buf, 0)); \ | |
3781 | } \ | |
3782 | } while (0) | |
3783 | ||
a9e6bacc KS |
3784 | /* SAFE_FREE frees xmalloced memory and enables GC as needed. */ |
3785 | ||
c33188d9 | 3786 | #define SAFE_FREE() \ |
79518a8d | 3787 | do { \ |
c33188d9 KS |
3788 | if (sa_must_free) { \ |
3789 | sa_must_free = 0; \ | |
79518a8d | 3790 | unbind_to (sa_count, Qnil); \ |
c33188d9 | 3791 | } \ |
79518a8d KS |
3792 | } while (0) |
3793 | ||
3794 | ||
5f5d6c62 KS |
3795 | /* SAFE_ALLOCA_LISP allocates an array of Lisp_Objects. */ |
3796 | ||
3797 | #define SAFE_ALLOCA_LISP(buf, nelt) \ | |
3798 | do { \ | |
9c4c5f81 PE |
3799 | if ((nelt) < MAX_ALLOCA / sizeof (Lisp_Object)) \ |
3800 | buf = (Lisp_Object *) alloca ((nelt) * sizeof (Lisp_Object)); \ | |
3801 | else if ((nelt) < min (PTRDIFF_MAX, SIZE_MAX) / sizeof (Lisp_Object)) \ | |
5f5d6c62 KS |
3802 | { \ |
3803 | Lisp_Object arg_; \ | |
9c4c5f81 | 3804 | buf = (Lisp_Object *) xmalloc ((nelt) * sizeof (Lisp_Object)); \ |
5f5d6c62 KS |
3805 | arg_ = make_save_value (buf, nelt); \ |
3806 | XSAVE_VALUE (arg_)->dogc = 1; \ | |
a2d26660 | 3807 | sa_must_free = 1; \ |
5f5d6c62 KS |
3808 | record_unwind_protect (safe_alloca_unwind, arg_); \ |
3809 | } \ | |
9c4c5f81 PE |
3810 | else \ |
3811 | memory_full (SIZE_MAX); \ | |
5f5d6c62 KS |
3812 | } while (0) |
3813 | ||
79518a8d | 3814 | |
29208e82 TT |
3815 | #include "globals.h" |
3816 | ||
6b61353c | 3817 | #endif /* EMACS_LISP_H */ |