| 1 | /* Fundamental definitions for GNU Emacs Lisp interpreter. |
| 2 | Copyright (C) 1985-1987, 1993-1995, 1997-2011 |
| 3 | Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GNU Emacs. |
| 6 | |
| 7 | GNU Emacs is free software: you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation, either version 3 of the License, or |
| 10 | (at your option) any later version. |
| 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 |
| 18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | #ifndef EMACS_LISP_H |
| 21 | #define EMACS_LISP_H |
| 22 | |
| 23 | #include <stdarg.h> |
| 24 | #include <stddef.h> |
| 25 | #include <inttypes.h> |
| 26 | #include <limits.h> |
| 27 | |
| 28 | #include <intprops.h> |
| 29 | |
| 30 | /* Use the configure flag --enable-checking[=LIST] to enable various |
| 31 | types of run time checks for Lisp objects. */ |
| 32 | |
| 33 | #ifdef GC_CHECK_CONS_LIST |
| 34 | extern void check_cons_list (void); |
| 35 | #define CHECK_CONS_LIST() check_cons_list () |
| 36 | #else |
| 37 | #define CHECK_CONS_LIST() ((void) 0) |
| 38 | #endif |
| 39 | |
| 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 | |
| 44 | /* These are default choices for the types to use. */ |
| 45 | #ifndef EMACS_INT |
| 46 | # if BITS_PER_LONG < BITS_PER_LONG_LONG && defined WIDE_EMACS_INT |
| 47 | # define EMACS_INT long long |
| 48 | # define BITS_PER_EMACS_INT BITS_PER_LONG_LONG |
| 49 | # define pI "ll" |
| 50 | # elif BITS_PER_INT < BITS_PER_LONG |
| 51 | # define EMACS_INT long |
| 52 | # define BITS_PER_EMACS_INT BITS_PER_LONG |
| 53 | # define pI "l" |
| 54 | # else |
| 55 | # define EMACS_INT int |
| 56 | # define BITS_PER_EMACS_INT BITS_PER_INT |
| 57 | # define pI "" |
| 58 | # endif |
| 59 | #endif |
| 60 | #ifndef EMACS_UINT |
| 61 | # define EMACS_UINT unsigned EMACS_INT |
| 62 | #endif |
| 63 | |
| 64 | /* Use pD to format ptrdiff_t values, which suffice for indexes into |
| 65 | buffers and strings. Emacs never allocates objects larger than |
| 66 | PTRDIFF_MAX bytes, as they cause problems with pointer subtraction. |
| 67 | In C99, pD can always be "t"; configure it here for the sake of |
| 68 | pre-C99 libraries such as glibc 2.0 and Solaris 8. */ |
| 69 | #if PTRDIFF_MAX == INT_MAX |
| 70 | # define pD "" |
| 71 | #elif PTRDIFF_MAX == LONG_MAX |
| 72 | # define pD "l" |
| 73 | #elif PTRDIFF_MAX == LLONG_MAX |
| 74 | # define pD "ll" |
| 75 | #else |
| 76 | # define pD "t" |
| 77 | #endif |
| 78 | |
| 79 | /* Extra internal type checking? */ |
| 80 | |
| 81 | #ifdef ENABLE_CHECKING |
| 82 | |
| 83 | extern void die (const char *, const char *, int) NO_RETURN; |
| 84 | |
| 85 | /* The suppress_checking variable is initialized to 0 in alloc.c. Set |
| 86 | it to 1 using a debugger to temporarily disable aborting on |
| 87 | detected internal inconsistencies or error conditions. |
| 88 | |
| 89 | Testing suppress_checking after the supplied condition ensures that |
| 90 | the side effects produced by CHECK will be consistent, independent |
| 91 | of whether ENABLE_CHECKING is defined, or whether the checks are |
| 92 | suppressed at run time. |
| 93 | |
| 94 | In some cases, a good compiler may be able to optimize away the |
| 95 | CHECK macro altogether, e.g., if XSTRING (x) uses CHECK to test |
| 96 | STRINGP (x), but a particular use of XSTRING is invoked only after |
| 97 | testing that STRINGP (x) is true, making the test redundant. */ |
| 98 | |
| 99 | extern int suppress_checking EXTERNALLY_VISIBLE; |
| 100 | |
| 101 | #define CHECK(check,msg) (((check) || suppress_checking \ |
| 102 | ? (void) 0 \ |
| 103 | : die ((msg), __FILE__, __LINE__)), \ |
| 104 | 0) |
| 105 | #else |
| 106 | |
| 107 | /* Produce same side effects and result, but don't complain. */ |
| 108 | #define CHECK(check,msg) ((check),0) |
| 109 | |
| 110 | #endif |
| 111 | |
| 112 | /* Define an Emacs version of "assert", since some system ones are |
| 113 | flaky. */ |
| 114 | #ifndef ENABLE_CHECKING |
| 115 | #define eassert(X) ((void) (0 && (X))) /* Check that X compiles. */ |
| 116 | #else /* ENABLE_CHECKING */ |
| 117 | #if defined (__GNUC__) && __GNUC__ >= 2 && defined (__STDC__) |
| 118 | #define eassert(cond) CHECK(cond,"assertion failed: " #cond) |
| 119 | #else |
| 120 | #define eassert(cond) CHECK(cond,"assertion failed") |
| 121 | #endif |
| 122 | #endif /* ENABLE_CHECKING */ |
| 123 | \f |
| 124 | /* Use the configure flag --enable-use-lisp-union-type to make |
| 125 | Lisp_Object use a union type instead of the default int. The flag |
| 126 | causes USE_LISP_UNION_TYPE to be defined. */ |
| 127 | |
| 128 | /***** Select the tagging scheme. *****/ |
| 129 | /* There are basically two options that control the tagging scheme: |
| 130 | - USE_LISP_UNION_TYPE says that Lisp_Object should be a union instead |
| 131 | of an integer. |
| 132 | - USE_LSB_TAG means that we can assume the least 3 bits of pointers are |
| 133 | always 0, and we can thus use them to hold tag bits, without |
| 134 | restricting our addressing space. |
| 135 | |
| 136 | If USE_LSB_TAG is not set, then we use the top 3 bits for tagging, thus |
| 137 | restricting our possible address range. Currently USE_LSB_TAG is not |
| 138 | allowed together with a union. This is not due to any fundamental |
| 139 | technical (or political ;-) problem: nobody wrote the code to do it yet. |
| 140 | |
| 141 | USE_LSB_TAG not only requires the least 3 bits of pointers returned by |
| 142 | malloc to be 0 but also needs to be able to impose a mult-of-8 alignment |
| 143 | on the few static Lisp_Objects used: all the defsubr as well |
| 144 | as the two special buffers buffer_defaults and buffer_local_symbols. */ |
| 145 | |
| 146 | /* First, try and define DECL_ALIGN(type,var) which declares a static |
| 147 | variable VAR of type TYPE with the added requirement that it be |
| 148 | TYPEBITS-aligned. */ |
| 149 | #ifndef NO_DECL_ALIGN |
| 150 | # ifndef DECL_ALIGN |
| 151 | # if HAVE_ATTRIBUTE_ALIGNED |
| 152 | # define DECL_ALIGN(type, var) \ |
| 153 | type __attribute__ ((__aligned__ (1 << GCTYPEBITS))) var |
| 154 | # else |
| 155 | /* What directives do other compilers use? */ |
| 156 | # endif |
| 157 | # endif |
| 158 | #endif |
| 159 | |
| 160 | /* Let's USE_LSB_TAG on systems where we know malloc returns mult-of-8. */ |
| 161 | #if (defined GNU_MALLOC || defined DOUG_LEA_MALLOC || defined __GLIBC__ \ |
| 162 | || defined DARWIN_OS || defined __sun) |
| 163 | /* We also need to be able to specify mult-of-8 alignment on static vars. */ |
| 164 | # if defined DECL_ALIGN |
| 165 | # define USE_LSB_TAG |
| 166 | # endif |
| 167 | #endif |
| 168 | |
| 169 | /* If we cannot use 8-byte alignment, make DECL_ALIGN a no-op. */ |
| 170 | #ifndef DECL_ALIGN |
| 171 | # ifdef USE_LSB_TAG |
| 172 | # error "USE_LSB_TAG used without defining DECL_ALIGN" |
| 173 | # endif |
| 174 | # define DECL_ALIGN(type, var) type var |
| 175 | #endif |
| 176 | |
| 177 | |
| 178 | /* Define the fundamental Lisp data structures. */ |
| 179 | |
| 180 | /* If USE_2_TAGBITS_FOR_INTS is defined, then Lisp integers use |
| 181 | 2 tags, to give them one extra bit, thus extending their range from |
| 182 | e.g -2^28..2^28-1 to -2^29..2^29-1. */ |
| 183 | #define USE_2_TAGS_FOR_INTS |
| 184 | |
| 185 | /* Making it work for the union case is too much trouble. */ |
| 186 | #ifdef USE_LISP_UNION_TYPE |
| 187 | # undef USE_2_TAGS_FOR_INTS |
| 188 | #endif |
| 189 | |
| 190 | /* This is the set of Lisp data types. */ |
| 191 | |
| 192 | #if !defined USE_2_TAGS_FOR_INTS |
| 193 | # define LISP_INT_TAG Lisp_Int |
| 194 | # define case_Lisp_Int case Lisp_Int |
| 195 | # define LISP_STRING_TAG 4 |
| 196 | # define LISP_INT_TAG_P(x) ((x) == Lisp_Int) |
| 197 | #else |
| 198 | # define LISP_INT_TAG Lisp_Int0 |
| 199 | # define case_Lisp_Int case Lisp_Int0: case Lisp_Int1 |
| 200 | # ifdef USE_LSB_TAG |
| 201 | # define LISP_INT1_TAG 4 |
| 202 | # define LISP_STRING_TAG 1 |
| 203 | # define LISP_INT_TAG_P(x) (((x) & 3) == 0) |
| 204 | # else |
| 205 | # define LISP_INT1_TAG 1 |
| 206 | # define LISP_STRING_TAG 4 |
| 207 | # define LISP_INT_TAG_P(x) (((x) & 6) == 0) |
| 208 | # endif |
| 209 | #endif |
| 210 | |
| 211 | enum Lisp_Type |
| 212 | { |
| 213 | /* Integer. XINT (obj) is the integer value. */ |
| 214 | #ifdef USE_2_TAGS_FOR_INTS |
| 215 | Lisp_Int0 = 0, |
| 216 | Lisp_Int1 = LISP_INT1_TAG, |
| 217 | #else |
| 218 | Lisp_Int = 0, |
| 219 | #endif |
| 220 | |
| 221 | /* Symbol. XSYMBOL (object) points to a struct Lisp_Symbol. */ |
| 222 | Lisp_Symbol = 2, |
| 223 | |
| 224 | /* Miscellaneous. XMISC (object) points to a union Lisp_Misc, |
| 225 | whose first member indicates the subtype. */ |
| 226 | Lisp_Misc = 3, |
| 227 | |
| 228 | /* String. XSTRING (object) points to a struct Lisp_String. |
| 229 | The length of the string, and its contents, are stored therein. */ |
| 230 | Lisp_String = LISP_STRING_TAG, |
| 231 | |
| 232 | /* Vector of Lisp objects, or something resembling it. |
| 233 | XVECTOR (object) points to a struct Lisp_Vector, which contains |
| 234 | the size and contents. The size field also contains the type |
| 235 | information, if it's not a real vector object. */ |
| 236 | Lisp_Vectorlike = 5, |
| 237 | |
| 238 | /* Cons. XCONS (object) points to a struct Lisp_Cons. */ |
| 239 | Lisp_Cons = 6, |
| 240 | |
| 241 | Lisp_Float = 7, |
| 242 | }; |
| 243 | |
| 244 | /* This is the set of data types that share a common structure. |
| 245 | The first member of the structure is a type code from this set. |
| 246 | The enum values are arbitrary, but we'll use large numbers to make it |
| 247 | more likely that we'll spot the error if a random word in memory is |
| 248 | mistakenly interpreted as a Lisp_Misc. */ |
| 249 | enum Lisp_Misc_Type |
| 250 | { |
| 251 | Lisp_Misc_Free = 0x5eab, |
| 252 | Lisp_Misc_Marker, |
| 253 | Lisp_Misc_Overlay, |
| 254 | Lisp_Misc_Save_Value, |
| 255 | /* Currently floats are not a misc type, |
| 256 | but let's define this in case we want to change that. */ |
| 257 | Lisp_Misc_Float, |
| 258 | /* This is not a type code. It is for range checking. */ |
| 259 | Lisp_Misc_Limit |
| 260 | }; |
| 261 | |
| 262 | /* These are the types of forwarding objects used in the value slot |
| 263 | of symbols for special built-in variables whose value is stored in |
| 264 | C variables. */ |
| 265 | enum Lisp_Fwd_Type |
| 266 | { |
| 267 | Lisp_Fwd_Int, /* Fwd to a C `int' variable. */ |
| 268 | Lisp_Fwd_Bool, /* Fwd to a C boolean var. */ |
| 269 | Lisp_Fwd_Obj, /* Fwd to a C Lisp_Object variable. */ |
| 270 | Lisp_Fwd_Buffer_Obj, /* Fwd to a Lisp_Object field of buffers. */ |
| 271 | Lisp_Fwd_Kboard_Obj, /* Fwd to a Lisp_Object field of kboards. */ |
| 272 | }; |
| 273 | |
| 274 | #ifndef GCTYPEBITS |
| 275 | #define GCTYPEBITS 3 |
| 276 | #endif |
| 277 | |
| 278 | /* These values are overridden by the m- file on some machines. */ |
| 279 | #ifndef VALBITS |
| 280 | #define VALBITS (BITS_PER_EMACS_INT - GCTYPEBITS) |
| 281 | #endif |
| 282 | |
| 283 | #ifdef USE_LISP_UNION_TYPE |
| 284 | |
| 285 | #ifndef WORDS_BIGENDIAN |
| 286 | |
| 287 | /* Definition of Lisp_Object for little-endian machines. */ |
| 288 | |
| 289 | typedef |
| 290 | union Lisp_Object |
| 291 | { |
| 292 | /* Used for comparing two Lisp_Objects; |
| 293 | also, positive integers can be accessed fast this way. */ |
| 294 | EMACS_UINT i; |
| 295 | |
| 296 | struct |
| 297 | { |
| 298 | /* Use explict signed, the signedness of a bit-field of type |
| 299 | int is implementation defined. */ |
| 300 | signed EMACS_INT val : VALBITS; |
| 301 | enum Lisp_Type type : GCTYPEBITS; |
| 302 | } s; |
| 303 | struct |
| 304 | { |
| 305 | EMACS_UINT val : VALBITS; |
| 306 | enum Lisp_Type type : GCTYPEBITS; |
| 307 | } u; |
| 308 | } |
| 309 | Lisp_Object; |
| 310 | |
| 311 | #else /* If WORDS_BIGENDIAN */ |
| 312 | |
| 313 | typedef |
| 314 | union Lisp_Object |
| 315 | { |
| 316 | /* Used for comparing two Lisp_Objects; |
| 317 | also, positive integers can be accessed fast this way. */ |
| 318 | EMACS_UINT i; |
| 319 | |
| 320 | struct |
| 321 | { |
| 322 | enum Lisp_Type type : GCTYPEBITS; |
| 323 | /* Use explict signed, the signedness of a bit-field of type |
| 324 | int is implementation defined. */ |
| 325 | signed EMACS_INT val : VALBITS; |
| 326 | } s; |
| 327 | struct |
| 328 | { |
| 329 | enum Lisp_Type type : GCTYPEBITS; |
| 330 | EMACS_UINT val : VALBITS; |
| 331 | } u; |
| 332 | } |
| 333 | Lisp_Object; |
| 334 | |
| 335 | #endif /* WORDS_BIGENDIAN */ |
| 336 | |
| 337 | #ifdef __GNUC__ |
| 338 | static inline Lisp_Object |
| 339 | LISP_MAKE_RVALUE (Lisp_Object o) |
| 340 | { |
| 341 | return o; |
| 342 | } |
| 343 | #else |
| 344 | /* This is more portable to pre-C99 non-GCC compilers, but for |
| 345 | backwards compatibility GCC still accepts an old GNU extension |
| 346 | which caused this to only generate a warning. */ |
| 347 | #define LISP_MAKE_RVALUE(o) (0 ? (o) : (o)) |
| 348 | #endif |
| 349 | |
| 350 | #else /* USE_LISP_UNION_TYPE */ |
| 351 | |
| 352 | /* If union type is not wanted, define Lisp_Object as just a number. */ |
| 353 | |
| 354 | typedef EMACS_INT Lisp_Object; |
| 355 | #define LISP_MAKE_RVALUE(o) (0+(o)) |
| 356 | #endif /* USE_LISP_UNION_TYPE */ |
| 357 | |
| 358 | /* In the size word of a vector, this bit means the vector has been marked. |
| 359 | (Shift -1 left, not 1, to avoid provoking overflow diagnostics.) */ |
| 360 | |
| 361 | #define ARRAY_MARK_FLAG ((EMACS_INT) -1 << (BITS_PER_EMACS_INT - 1)) |
| 362 | |
| 363 | /* In the size word of a struct Lisp_Vector, this bit means it's really |
| 364 | some other vector-like object. */ |
| 365 | #define PSEUDOVECTOR_FLAG ((EMACS_INT) 1 << (BITS_PER_EMACS_INT - 2)) |
| 366 | |
| 367 | /* In a pseudovector, the size field actually contains a word with one |
| 368 | PSEUDOVECTOR_FLAG bit set, and exactly one of the following bits to |
| 369 | indicate the actual type. |
| 370 | We use a bitset, even tho only one of the bits can be set at any |
| 371 | particular time just so as to be able to use micro-optimizations such as |
| 372 | testing membership of a particular subset of pseudovectors in Fequal. |
| 373 | It is not crucial, but there are plenty of bits here, so why not do it? */ |
| 374 | enum pvec_type |
| 375 | { |
| 376 | PVEC_NORMAL_VECTOR = 0, |
| 377 | PVEC_PROCESS = 0x200, |
| 378 | PVEC_FRAME = 0x400, |
| 379 | PVEC_COMPILED = 0x800, |
| 380 | PVEC_WINDOW = 0x1000, |
| 381 | PVEC_WINDOW_CONFIGURATION = 0x2000, |
| 382 | PVEC_SUBR = 0x4000, |
| 383 | PVEC_CHAR_TABLE = 0x8000, |
| 384 | PVEC_BOOL_VECTOR = 0x10000, |
| 385 | PVEC_BUFFER = 0x20000, |
| 386 | PVEC_HASH_TABLE = 0x40000, |
| 387 | PVEC_TERMINAL = 0x80000, |
| 388 | PVEC_SUB_CHAR_TABLE = 0x100000, |
| 389 | PVEC_FONT = 0x200000, |
| 390 | PVEC_OTHER = 0x400000, |
| 391 | PVEC_TYPE_MASK = 0x7ffe00 |
| 392 | |
| 393 | #if 0 /* This is used to make the value of PSEUDOVECTOR_FLAG available to |
| 394 | GDB. It doesn't work on OS Alpha. Moved to a variable in |
| 395 | emacs.c. */ |
| 396 | PVEC_FLAG = PSEUDOVECTOR_FLAG |
| 397 | #endif |
| 398 | }; |
| 399 | |
| 400 | /* For convenience, we also store the number of elements in these bits. |
| 401 | Note that this size is not necessarily the memory-footprint size, but |
| 402 | only the number of Lisp_Object fields (that need to be traced by the GC). |
| 403 | The distinction is used e.g. by Lisp_Process which places extra |
| 404 | non-Lisp_Object fields at the end of the structure. */ |
| 405 | #define PSEUDOVECTOR_SIZE_MASK 0x1ff |
| 406 | |
| 407 | /* Number of bits to put in each character in the internal representation |
| 408 | of bool vectors. This should not vary across implementations. */ |
| 409 | #define BOOL_VECTOR_BITS_PER_CHAR 8 |
| 410 | \f |
| 411 | /* These macros extract various sorts of values from a Lisp_Object. |
| 412 | For example, if tem is a Lisp_Object whose type is Lisp_Cons, |
| 413 | XCONS (tem) is the struct Lisp_Cons * pointing to the memory for that cons. */ |
| 414 | |
| 415 | #ifndef USE_LISP_UNION_TYPE |
| 416 | |
| 417 | /* Return a perfect hash of the Lisp_Object representation. */ |
| 418 | #define XHASH(a) (a) |
| 419 | |
| 420 | #ifdef USE_LSB_TAG |
| 421 | |
| 422 | #define TYPEMASK ((((EMACS_INT) 1) << GCTYPEBITS) - 1) |
| 423 | #define XTYPE(a) ((enum Lisp_Type) ((a) & TYPEMASK)) |
| 424 | #ifdef USE_2_TAGS_FOR_INTS |
| 425 | # define XINT(a) (((EMACS_INT) (a)) >> (GCTYPEBITS - 1)) |
| 426 | # define XUINT(a) (((EMACS_UINT) (a)) >> (GCTYPEBITS - 1)) |
| 427 | # define make_number(N) (((EMACS_INT) (N)) << (GCTYPEBITS - 1)) |
| 428 | #else |
| 429 | # define XINT(a) (((EMACS_INT) (a)) >> GCTYPEBITS) |
| 430 | # define XUINT(a) (((EMACS_UINT) (a)) >> GCTYPEBITS) |
| 431 | # define make_number(N) (((EMACS_INT) (N)) << GCTYPEBITS) |
| 432 | #endif |
| 433 | #define XSET(var, type, ptr) \ |
| 434 | (eassert (XTYPE ((intptr_t) (ptr)) == 0), /* Check alignment. */ \ |
| 435 | (var) = (type) | (intptr_t) (ptr)) |
| 436 | |
| 437 | #define XPNTR(a) ((intptr_t) ((a) & ~TYPEMASK)) |
| 438 | |
| 439 | #else /* not USE_LSB_TAG */ |
| 440 | |
| 441 | #define VALMASK ((((EMACS_INT) 1) << VALBITS) - 1) |
| 442 | |
| 443 | /* One need to override this if there must be high bits set in data space |
| 444 | (doing the result of the below & ((1 << (GCTYPE + 1)) - 1) would work |
| 445 | on all machines, but would penalize machines which don't need it) |
| 446 | */ |
| 447 | #define XTYPE(a) ((enum Lisp_Type) (((EMACS_UINT) (a)) >> VALBITS)) |
| 448 | |
| 449 | /* For integers known to be positive, XFASTINT provides fast retrieval |
| 450 | and XSETFASTINT provides fast storage. This takes advantage of the |
| 451 | fact that Lisp_Int is 0. */ |
| 452 | #define XFASTINT(a) ((a) + 0) |
| 453 | #define XSETFASTINT(a, b) ((a) = (b)) |
| 454 | |
| 455 | /* Extract the value of a Lisp_Object as a (un)signed integer. */ |
| 456 | |
| 457 | #ifdef USE_2_TAGS_FOR_INTS |
| 458 | # define XINT(a) ((((EMACS_INT) (a)) << (GCTYPEBITS - 1)) >> (GCTYPEBITS - 1)) |
| 459 | # define XUINT(a) ((EMACS_UINT) ((a) & (1 + (VALMASK << 1)))) |
| 460 | # define make_number(N) ((((EMACS_INT) (N)) & (1 + (VALMASK << 1)))) |
| 461 | #else |
| 462 | # define XINT(a) ((((EMACS_INT) (a)) << (BITS_PER_EMACS_INT - VALBITS)) \ |
| 463 | >> (BITS_PER_EMACS_INT - VALBITS)) |
| 464 | # define XUINT(a) ((EMACS_UINT) ((a) & VALMASK)) |
| 465 | # define make_number(N) \ |
| 466 | ((((EMACS_INT) (N)) & VALMASK) | ((EMACS_INT) Lisp_Int) << VALBITS) |
| 467 | #endif |
| 468 | |
| 469 | #define XSET(var, type, ptr) \ |
| 470 | ((var) = ((EMACS_INT) ((EMACS_UINT) (type) << VALBITS) \ |
| 471 | + ((intptr_t) (ptr) & VALMASK))) |
| 472 | |
| 473 | #ifdef DATA_SEG_BITS |
| 474 | /* DATA_SEG_BITS forces extra bits to be or'd in with any pointers |
| 475 | which were stored in a Lisp_Object */ |
| 476 | #define XPNTR(a) ((uintptr_t) (((a) & VALMASK)) | DATA_SEG_BITS)) |
| 477 | #else |
| 478 | #define XPNTR(a) ((uintptr_t) ((a) & VALMASK)) |
| 479 | #endif |
| 480 | |
| 481 | #endif /* not USE_LSB_TAG */ |
| 482 | |
| 483 | #else /* USE_LISP_UNION_TYPE */ |
| 484 | |
| 485 | #ifdef USE_2_TAGS_FOR_INTS |
| 486 | # error "USE_2_TAGS_FOR_INTS is not supported with USE_LISP_UNION_TYPE" |
| 487 | #endif |
| 488 | |
| 489 | #define XHASH(a) ((a).i) |
| 490 | #define XTYPE(a) ((enum Lisp_Type) (a).u.type) |
| 491 | #define XINT(a) ((EMACS_INT) (a).s.val) |
| 492 | #define XUINT(a) ((EMACS_UINT) (a).u.val) |
| 493 | |
| 494 | #ifdef USE_LSB_TAG |
| 495 | |
| 496 | # define XSET(var, vartype, ptr) \ |
| 497 | (eassert ((((EMACS_UINT) (ptr)) & ((1 << GCTYPEBITS) - 1)) == 0), \ |
| 498 | (var).u.val = ((EMACS_UINT) (ptr)) >> GCTYPEBITS, \ |
| 499 | (var).u.type = ((char) (vartype))) |
| 500 | |
| 501 | /* Some versions of gcc seem to consider the bitfield width when issuing |
| 502 | the "cast to pointer from integer of different size" warning, so the |
| 503 | cast is here to widen the value back to its natural size. */ |
| 504 | # define XPNTR(v) ((intptr_t) (v).s.val << GCTYPEBITS) |
| 505 | |
| 506 | #else /* !USE_LSB_TAG */ |
| 507 | |
| 508 | /* For integers known to be positive, XFASTINT provides fast retrieval |
| 509 | and XSETFASTINT provides fast storage. This takes advantage of the |
| 510 | fact that Lisp_Int is 0. */ |
| 511 | # define XFASTINT(a) ((a).i + 0) |
| 512 | # define XSETFASTINT(a, b) ((a).i = (b)) |
| 513 | |
| 514 | # define XSET(var, vartype, ptr) \ |
| 515 | (((var).s.val = ((EMACS_INT) (ptr))), ((var).s.type = ((char) (vartype)))) |
| 516 | |
| 517 | #ifdef DATA_SEG_BITS |
| 518 | /* DATA_SEG_BITS forces extra bits to be or'd in with any pointers |
| 519 | which were stored in a Lisp_Object */ |
| 520 | #define XPNTR(a) ((intptr_t) (XUINT (a) | DATA_SEG_BITS)) |
| 521 | #else |
| 522 | #define XPNTR(a) ((intptr_t) XUINT (a)) |
| 523 | #endif |
| 524 | |
| 525 | #endif /* !USE_LSB_TAG */ |
| 526 | |
| 527 | #if __GNUC__ >= 2 && defined (__OPTIMIZE__) |
| 528 | #define make_number(N) \ |
| 529 | (__extension__ ({ Lisp_Object _l; _l.s.val = (N); _l.s.type = Lisp_Int; _l; })) |
| 530 | #else |
| 531 | extern Lisp_Object make_number (EMACS_INT); |
| 532 | #endif |
| 533 | |
| 534 | #endif /* USE_LISP_UNION_TYPE */ |
| 535 | |
| 536 | /* For integers known to be positive, XFASTINT sometimes provides |
| 537 | faster retrieval and XSETFASTINT provides faster storage. |
| 538 | If not, fallback on the non-accelerated path. */ |
| 539 | #ifndef XFASTINT |
| 540 | # define XFASTINT(a) (XINT (a)) |
| 541 | # define XSETFASTINT(a, b) (XSETINT (a, b)) |
| 542 | #endif |
| 543 | |
| 544 | #define EQ(x, y) (XHASH (x) == XHASH (y)) |
| 545 | |
| 546 | /* Number of bits in a fixnum, including the sign bit. */ |
| 547 | #ifdef USE_2_TAGS_FOR_INTS |
| 548 | # define FIXNUM_BITS (VALBITS + 1) |
| 549 | #else |
| 550 | # define FIXNUM_BITS VALBITS |
| 551 | #endif |
| 552 | |
| 553 | /* Mask indicating the significant bits of a fixnum. */ |
| 554 | #define INTMASK (((EMACS_INT) 1 << FIXNUM_BITS) - 1) |
| 555 | |
| 556 | /* Largest and smallest representable fixnum values. These are the C |
| 557 | values. */ |
| 558 | #define MOST_POSITIVE_FIXNUM (INTMASK / 2) |
| 559 | #define MOST_NEGATIVE_FIXNUM (-1 - MOST_POSITIVE_FIXNUM) |
| 560 | |
| 561 | /* Value is non-zero if I doesn't fit into a Lisp fixnum. It is |
| 562 | written this way so that it also works if I is of unsigned |
| 563 | type or if I is a NaN. */ |
| 564 | |
| 565 | #define FIXNUM_OVERFLOW_P(i) \ |
| 566 | (! ((0 <= (i) || MOST_NEGATIVE_FIXNUM <= (i)) && (i) <= MOST_POSITIVE_FIXNUM)) |
| 567 | |
| 568 | /* Extract a value or address from a Lisp_Object. */ |
| 569 | |
| 570 | #define XCONS(a) (eassert (CONSP(a)),(struct Lisp_Cons *) XPNTR(a)) |
| 571 | #define XVECTOR(a) (eassert (VECTORLIKEP(a)),(struct Lisp_Vector *) XPNTR(a)) |
| 572 | #define XSTRING(a) (eassert (STRINGP(a)),(struct Lisp_String *) XPNTR(a)) |
| 573 | #define XSYMBOL(a) (eassert (SYMBOLP(a)),(struct Lisp_Symbol *) XPNTR(a)) |
| 574 | #define XFLOAT(a) (eassert (FLOATP(a)),(struct Lisp_Float *) XPNTR(a)) |
| 575 | |
| 576 | /* Misc types. */ |
| 577 | |
| 578 | #define XMISC(a) ((union Lisp_Misc *) XPNTR(a)) |
| 579 | #define XMISCANY(a) (eassert (MISCP (a)), &(XMISC(a)->u_any)) |
| 580 | #define XMISCTYPE(a) (XMISCANY (a)->type) |
| 581 | #define XMARKER(a) (eassert (MARKERP (a)), &(XMISC(a)->u_marker)) |
| 582 | #define XOVERLAY(a) (eassert (OVERLAYP (a)), &(XMISC(a)->u_overlay)) |
| 583 | #define XSAVE_VALUE(a) (eassert (SAVE_VALUEP (a)), &(XMISC(a)->u_save_value)) |
| 584 | |
| 585 | /* Forwarding object types. */ |
| 586 | |
| 587 | #define XFWDTYPE(a) (a->u_intfwd.type) |
| 588 | #define XINTFWD(a) (eassert (INTFWDP (a)), &((a)->u_intfwd)) |
| 589 | #define XBOOLFWD(a) (eassert (BOOLFWDP (a)), &((a)->u_boolfwd)) |
| 590 | #define XOBJFWD(a) (eassert (OBJFWDP (a)), &((a)->u_objfwd)) |
| 591 | #define XBUFFER_OBJFWD(a) \ |
| 592 | (eassert (BUFFER_OBJFWDP (a)), &((a)->u_buffer_objfwd)) |
| 593 | #define XKBOARD_OBJFWD(a) \ |
| 594 | (eassert (KBOARD_OBJFWDP (a)), &((a)->u_kboard_objfwd)) |
| 595 | |
| 596 | /* Pseudovector types. */ |
| 597 | |
| 598 | #define XPROCESS(a) (eassert (PROCESSP(a)),(struct Lisp_Process *) XPNTR(a)) |
| 599 | #define XWINDOW(a) (eassert (WINDOWP(a)),(struct window *) XPNTR(a)) |
| 600 | #define XTERMINAL(a) (eassert (TERMINALP(a)),(struct terminal *) XPNTR(a)) |
| 601 | #define XSUBR(a) (eassert (SUBRP(a)),(struct Lisp_Subr *) XPNTR(a)) |
| 602 | #define XBUFFER(a) (eassert (BUFFERP(a)),(struct buffer *) XPNTR(a)) |
| 603 | #define XCHAR_TABLE(a) (eassert (CHAR_TABLE_P (a)), (struct Lisp_Char_Table *) XPNTR(a)) |
| 604 | #define XSUB_CHAR_TABLE(a) (eassert (SUB_CHAR_TABLE_P (a)), (struct Lisp_Sub_Char_Table *) XPNTR(a)) |
| 605 | #define XBOOL_VECTOR(a) (eassert (BOOL_VECTOR_P (a)), (struct Lisp_Bool_Vector *) XPNTR(a)) |
| 606 | |
| 607 | /* Construct a Lisp_Object from a value or address. */ |
| 608 | |
| 609 | #define XSETINT(a, b) (a) = make_number (b) |
| 610 | #define XSETCONS(a, b) XSET (a, Lisp_Cons, b) |
| 611 | #define XSETVECTOR(a, b) XSET (a, Lisp_Vectorlike, b) |
| 612 | #define XSETSTRING(a, b) XSET (a, Lisp_String, b) |
| 613 | #define XSETSYMBOL(a, b) XSET (a, Lisp_Symbol, b) |
| 614 | #define XSETFLOAT(a, b) XSET (a, Lisp_Float, b) |
| 615 | |
| 616 | /* Misc types. */ |
| 617 | |
| 618 | #define XSETMISC(a, b) XSET (a, Lisp_Misc, b) |
| 619 | #define XSETMARKER(a, b) (XSETMISC (a, b), XMISCTYPE (a) = Lisp_Misc_Marker) |
| 620 | |
| 621 | /* Pseudovector types. */ |
| 622 | |
| 623 | #define XSETPVECTYPE(v, code) XSETTYPED_PVECTYPE(v, header.size, code) |
| 624 | #define XSETTYPED_PVECTYPE(v, size_member, code) \ |
| 625 | ((v)->size_member |= PSEUDOVECTOR_FLAG | (code)) |
| 626 | #define XSETPVECTYPESIZE(v, code, sizeval) \ |
| 627 | ((v)->header.size = PSEUDOVECTOR_FLAG | (code) | (sizeval)) |
| 628 | |
| 629 | /* The cast to struct vectorlike_header * avoids aliasing issues. */ |
| 630 | #define XSETPSEUDOVECTOR(a, b, code) \ |
| 631 | XSETTYPED_PSEUDOVECTOR(a, b, \ |
| 632 | ((struct vectorlike_header *) XPNTR (a))->size, \ |
| 633 | code) |
| 634 | #define XSETTYPED_PSEUDOVECTOR(a, b, size, code) \ |
| 635 | (XSETVECTOR (a, b), \ |
| 636 | eassert ((size & (PSEUDOVECTOR_FLAG | PVEC_TYPE_MASK)) \ |
| 637 | == (PSEUDOVECTOR_FLAG | (code)))) |
| 638 | |
| 639 | #define XSETWINDOW_CONFIGURATION(a, b) \ |
| 640 | (XSETPSEUDOVECTOR (a, b, PVEC_WINDOW_CONFIGURATION)) |
| 641 | #define XSETPROCESS(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_PROCESS)) |
| 642 | #define XSETWINDOW(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_WINDOW)) |
| 643 | #define XSETTERMINAL(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_TERMINAL)) |
| 644 | /* XSETSUBR is special since Lisp_Subr lacks struct vectorlike_header. */ |
| 645 | #define XSETSUBR(a, b) \ |
| 646 | XSETTYPED_PSEUDOVECTOR (a, b, XSUBR (a)->size, PVEC_SUBR) |
| 647 | #define XSETCOMPILED(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_COMPILED)) |
| 648 | #define XSETBUFFER(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_BUFFER)) |
| 649 | #define XSETCHAR_TABLE(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_CHAR_TABLE)) |
| 650 | #define XSETBOOL_VECTOR(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_BOOL_VECTOR)) |
| 651 | #define XSETSUB_CHAR_TABLE(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_SUB_CHAR_TABLE)) |
| 652 | |
| 653 | /* Convenience macros for dealing with Lisp arrays. */ |
| 654 | |
| 655 | #define AREF(ARRAY, IDX) XVECTOR ((ARRAY))->contents[IDX] |
| 656 | #define ASIZE(ARRAY) XVECTOR ((ARRAY))->header.size |
| 657 | /* The IDX==IDX tries to detect when the macro argument is side-effecting. */ |
| 658 | #define ASET(ARRAY, IDX, VAL) \ |
| 659 | (eassert ((IDX) == (IDX)), \ |
| 660 | eassert ((IDX) >= 0 && (IDX) < ASIZE (ARRAY)), \ |
| 661 | AREF ((ARRAY), (IDX)) = (VAL)) |
| 662 | |
| 663 | /* Convenience macros for dealing with Lisp strings. */ |
| 664 | |
| 665 | #define SDATA(string) (XSTRING (string)->data + 0) |
| 666 | #define SREF(string, index) (SDATA (string)[index] + 0) |
| 667 | #define SSET(string, index, new) (SDATA (string)[index] = (new)) |
| 668 | #define SCHARS(string) (XSTRING (string)->size + 0) |
| 669 | #define SBYTES(string) (STRING_BYTES (XSTRING (string)) + 0) |
| 670 | |
| 671 | /* Avoid "differ in sign" warnings. */ |
| 672 | #define SSDATA(x) ((char *) SDATA (x)) |
| 673 | |
| 674 | #define STRING_SET_CHARS(string, newsize) \ |
| 675 | (XSTRING (string)->size = (newsize)) |
| 676 | |
| 677 | #define STRING_COPYIN(string, index, new, count) \ |
| 678 | memcpy (SDATA (string) + index, new, count) |
| 679 | |
| 680 | /* Type checking. */ |
| 681 | |
| 682 | #define CHECK_TYPE(ok, Qxxxp, x) \ |
| 683 | do { if (!(ok)) wrong_type_argument (Qxxxp, (x)); } while (0) |
| 684 | |
| 685 | |
| 686 | \f |
| 687 | /* See the macros in intervals.h. */ |
| 688 | |
| 689 | typedef struct interval *INTERVAL; |
| 690 | |
| 691 | /* Complain if object is not string or buffer type */ |
| 692 | #define CHECK_STRING_OR_BUFFER(x) \ |
| 693 | CHECK_TYPE (STRINGP (x) || BUFFERP (x), Qbuffer_or_string_p, x) |
| 694 | |
| 695 | \f |
| 696 | /* In a cons, the markbit of the car is the gc mark bit */ |
| 697 | |
| 698 | struct Lisp_Cons |
| 699 | { |
| 700 | /* Please do not use the names of these elements in code other |
| 701 | than the core lisp implementation. Use XCAR and XCDR below. */ |
| 702 | #ifdef HIDE_LISP_IMPLEMENTATION |
| 703 | Lisp_Object car_; |
| 704 | union |
| 705 | { |
| 706 | Lisp_Object cdr_; |
| 707 | struct Lisp_Cons *chain; |
| 708 | } u; |
| 709 | #else |
| 710 | Lisp_Object car; |
| 711 | union |
| 712 | { |
| 713 | Lisp_Object cdr; |
| 714 | struct Lisp_Cons *chain; |
| 715 | } u; |
| 716 | #endif |
| 717 | }; |
| 718 | |
| 719 | /* Take the car or cdr of something known to be a cons cell. */ |
| 720 | /* The _AS_LVALUE macros shouldn't be used outside of the minimal set |
| 721 | of code that has to know what a cons cell looks like. Other code not |
| 722 | part of the basic lisp implementation should assume that the car and cdr |
| 723 | fields are not accessible as lvalues. (What if we want to switch to |
| 724 | a copying collector someday? Cached cons cell field addresses may be |
| 725 | invalidated at arbitrary points.) */ |
| 726 | #ifdef HIDE_LISP_IMPLEMENTATION |
| 727 | #define XCAR_AS_LVALUE(c) (XCONS ((c))->car_) |
| 728 | #define XCDR_AS_LVALUE(c) (XCONS ((c))->u.cdr_) |
| 729 | #else |
| 730 | #define XCAR_AS_LVALUE(c) (XCONS ((c))->car) |
| 731 | #define XCDR_AS_LVALUE(c) (XCONS ((c))->u.cdr) |
| 732 | #endif |
| 733 | |
| 734 | /* Use these from normal code. */ |
| 735 | #define XCAR(c) LISP_MAKE_RVALUE(XCAR_AS_LVALUE(c)) |
| 736 | #define XCDR(c) LISP_MAKE_RVALUE(XCDR_AS_LVALUE(c)) |
| 737 | |
| 738 | /* Use these to set the fields of a cons cell. |
| 739 | |
| 740 | Note that both arguments may refer to the same object, so 'n' |
| 741 | should not be read after 'c' is first modified. Also, neither |
| 742 | argument should be evaluated more than once; side effects are |
| 743 | especially common in the second argument. */ |
| 744 | #define XSETCAR(c,n) (XCAR_AS_LVALUE(c) = (n)) |
| 745 | #define XSETCDR(c,n) (XCDR_AS_LVALUE(c) = (n)) |
| 746 | |
| 747 | /* Take the car or cdr of something whose type is not known. */ |
| 748 | #define CAR(c) \ |
| 749 | (CONSP ((c)) ? XCAR ((c)) \ |
| 750 | : NILP ((c)) ? Qnil \ |
| 751 | : wrong_type_argument (Qlistp, (c))) |
| 752 | |
| 753 | #define CDR(c) \ |
| 754 | (CONSP ((c)) ? XCDR ((c)) \ |
| 755 | : NILP ((c)) ? Qnil \ |
| 756 | : wrong_type_argument (Qlistp, (c))) |
| 757 | |
| 758 | /* Take the car or cdr of something whose type is not known. */ |
| 759 | #define CAR_SAFE(c) \ |
| 760 | (CONSP ((c)) ? XCAR ((c)) : Qnil) |
| 761 | |
| 762 | #define CDR_SAFE(c) \ |
| 763 | (CONSP ((c)) ? XCDR ((c)) : Qnil) |
| 764 | |
| 765 | /* Nonzero if STR is a multibyte string. */ |
| 766 | #define STRING_MULTIBYTE(STR) \ |
| 767 | (XSTRING (STR)->size_byte >= 0) |
| 768 | |
| 769 | /* Return the length in bytes of STR. */ |
| 770 | |
| 771 | #ifdef GC_CHECK_STRING_BYTES |
| 772 | |
| 773 | struct Lisp_String; |
| 774 | extern EMACS_INT string_bytes (struct Lisp_String *); |
| 775 | #define STRING_BYTES(S) string_bytes ((S)) |
| 776 | |
| 777 | #else /* not GC_CHECK_STRING_BYTES */ |
| 778 | |
| 779 | #define STRING_BYTES(STR) \ |
| 780 | ((STR)->size_byte < 0 ? (STR)->size : (STR)->size_byte) |
| 781 | |
| 782 | #endif /* not GC_CHECK_STRING_BYTES */ |
| 783 | |
| 784 | /* An upper bound on the number of bytes in a Lisp string, not |
| 785 | counting the terminating null. This a tight enough bound to |
| 786 | prevent integer overflow errors that would otherwise occur during |
| 787 | string size calculations. A string cannot contain more bytes than |
| 788 | a fixnum can represent, nor can it be so long that C pointer |
| 789 | arithmetic stops working on the string plus its terminating null. |
| 790 | Although the actual size limit (see STRING_BYTES_MAX in alloc.c) |
| 791 | may be a bit smaller than STRING_BYTES_BOUND, calculating it here |
| 792 | would expose alloc.c internal details that we'd rather keep |
| 793 | private. The cast to ptrdiff_t ensures that STRING_BYTES_BOUND is |
| 794 | signed. */ |
| 795 | #define STRING_BYTES_BOUND \ |
| 796 | min (MOST_POSITIVE_FIXNUM, (ptrdiff_t) min (SIZE_MAX, PTRDIFF_MAX) - 1) |
| 797 | |
| 798 | /* Mark STR as a unibyte string. */ |
| 799 | #define STRING_SET_UNIBYTE(STR) \ |
| 800 | do { if (EQ (STR, empty_multibyte_string)) \ |
| 801 | (STR) = empty_unibyte_string; \ |
| 802 | else XSTRING (STR)->size_byte = -1; } while (0) |
| 803 | |
| 804 | /* Mark STR as a multibyte string. Assure that STR contains only |
| 805 | ASCII characters in advance. */ |
| 806 | #define STRING_SET_MULTIBYTE(STR) \ |
| 807 | do { if (EQ (STR, empty_unibyte_string)) \ |
| 808 | (STR) = empty_multibyte_string; \ |
| 809 | else XSTRING (STR)->size_byte = XSTRING (STR)->size; } while (0) |
| 810 | |
| 811 | /* Get text properties. */ |
| 812 | #define STRING_INTERVALS(STR) (XSTRING (STR)->intervals + 0) |
| 813 | |
| 814 | /* Set text properties. */ |
| 815 | #define STRING_SET_INTERVALS(STR, INT) (XSTRING (STR)->intervals = (INT)) |
| 816 | |
| 817 | /* In a string or vector, the sign bit of the `size' is the gc mark bit */ |
| 818 | |
| 819 | struct Lisp_String |
| 820 | { |
| 821 | EMACS_INT size; |
| 822 | EMACS_INT size_byte; |
| 823 | INTERVAL intervals; /* text properties in this string */ |
| 824 | unsigned char *data; |
| 825 | }; |
| 826 | |
| 827 | /* Header of vector-like objects. This documents the layout constraints on |
| 828 | vectors and pseudovectors other than struct Lisp_Subr. It also prevents |
| 829 | compilers from being fooled by Emacs's type punning: the XSETPSEUDOVECTOR |
| 830 | and PSEUDOVECTORP macros cast their pointers to struct vectorlike_header *, |
| 831 | because when two such pointers potentially alias, a compiler won't |
| 832 | incorrectly reorder loads and stores to their size fields. See |
| 833 | <http://debbugs.gnu.org/cgi/bugreport.cgi?bug=8546>. */ |
| 834 | struct vectorlike_header |
| 835 | { |
| 836 | EMACS_UINT size; |
| 837 | |
| 838 | /* Pointer to the next vector-like object. It is generally a buffer or a |
| 839 | Lisp_Vector alias, so for convenience it is a union instead of a |
| 840 | pointer: this way, one can write P->next.vector instead of ((struct |
| 841 | Lisp_Vector *) P->next). */ |
| 842 | union { |
| 843 | struct buffer *buffer; |
| 844 | struct Lisp_Vector *vector; |
| 845 | } next; |
| 846 | }; |
| 847 | |
| 848 | struct Lisp_Vector |
| 849 | { |
| 850 | struct vectorlike_header header; |
| 851 | Lisp_Object contents[1]; |
| 852 | }; |
| 853 | |
| 854 | /* If a struct is made to look like a vector, this macro returns the length |
| 855 | of the shortest vector that would hold that struct. */ |
| 856 | #define VECSIZE(type) ((sizeof (type) \ |
| 857 | - offsetof (struct Lisp_Vector, contents[0]) \ |
| 858 | + sizeof(Lisp_Object) - 1) /* round up */ \ |
| 859 | / sizeof (Lisp_Object)) |
| 860 | |
| 861 | /* Like VECSIZE, but used when the pseudo-vector has non-Lisp_Object fields |
| 862 | at the end and we need to compute the number of Lisp_Object fields (the |
| 863 | ones that the GC needs to trace). */ |
| 864 | #define PSEUDOVECSIZE(type, nonlispfield) \ |
| 865 | ((offsetof(type, nonlispfield) - offsetof(struct Lisp_Vector, contents[0])) \ |
| 866 | / sizeof (Lisp_Object)) |
| 867 | |
| 868 | /* A char-table is a kind of vectorlike, with contents are like a |
| 869 | vector but with a few other slots. For some purposes, it makes |
| 870 | sense to handle a char-table with type struct Lisp_Vector. An |
| 871 | element of a char table can be any Lisp objects, but if it is a sub |
| 872 | char-table, we treat it a table that contains information of a |
| 873 | specific range of characters. A sub char-table has the same |
| 874 | structure as a vector. A sub char table appears only in an element |
| 875 | of a char-table, and there's no way to access it directly from |
| 876 | Emacs Lisp program. */ |
| 877 | |
| 878 | /* This is the number of slots that every char table must have. This |
| 879 | counts the ordinary slots and the top, defalt, parent, and purpose |
| 880 | slots. */ |
| 881 | #define CHAR_TABLE_STANDARD_SLOTS (VECSIZE (struct Lisp_Char_Table) - 1) |
| 882 | |
| 883 | /* Return the number of "extra" slots in the char table CT. */ |
| 884 | |
| 885 | #define CHAR_TABLE_EXTRA_SLOTS(CT) \ |
| 886 | (((CT)->header.size & PSEUDOVECTOR_SIZE_MASK) - CHAR_TABLE_STANDARD_SLOTS) |
| 887 | |
| 888 | #ifdef __GNUC__ |
| 889 | |
| 890 | #define CHAR_TABLE_REF_ASCII(CT, IDX) \ |
| 891 | ({struct Lisp_Char_Table *_tbl = NULL; \ |
| 892 | Lisp_Object _val; \ |
| 893 | do { \ |
| 894 | _tbl = _tbl ? XCHAR_TABLE (_tbl->parent) : XCHAR_TABLE (CT); \ |
| 895 | _val = (! SUB_CHAR_TABLE_P (_tbl->ascii) ? _tbl->ascii \ |
| 896 | : XSUB_CHAR_TABLE (_tbl->ascii)->contents[IDX]); \ |
| 897 | if (NILP (_val)) \ |
| 898 | _val = _tbl->defalt; \ |
| 899 | } while (NILP (_val) && ! NILP (_tbl->parent)); \ |
| 900 | _val; }) |
| 901 | |
| 902 | #else /* not __GNUC__ */ |
| 903 | |
| 904 | #define CHAR_TABLE_REF_ASCII(CT, IDX) \ |
| 905 | (! NILP (XCHAR_TABLE (CT)->ascii) \ |
| 906 | ? (! SUB_CHAR_TABLE_P (XCHAR_TABLE (CT)->ascii) \ |
| 907 | ? XCHAR_TABLE (CT)->ascii \ |
| 908 | : ! NILP (XSUB_CHAR_TABLE (XCHAR_TABLE (CT)->ascii)->contents[IDX]) \ |
| 909 | ? XSUB_CHAR_TABLE (XCHAR_TABLE (CT)->ascii)->contents[IDX] \ |
| 910 | : char_table_ref ((CT), (IDX))) \ |
| 911 | : char_table_ref ((CT), (IDX))) |
| 912 | |
| 913 | #endif /* not __GNUC__ */ |
| 914 | |
| 915 | /* Compute A OP B, using the unsigned comparison operator OP. A and B |
| 916 | should be integer expressions. This is not the same as |
| 917 | mathemeatical comparison; for example, UNSIGNED_CMP (0, <, -1) |
| 918 | returns 1. For efficiency, prefer plain unsigned comparison if A |
| 919 | and B's sizes both fit (after integer promotion). */ |
| 920 | #define UNSIGNED_CMP(a, op, b) \ |
| 921 | (max (sizeof ((a) + 0), sizeof ((b) + 0)) <= sizeof (unsigned) \ |
| 922 | ? ((a) + (unsigned) 0) op ((b) + (unsigned) 0) \ |
| 923 | : ((a) + (uintmax_t) 0) op ((b) + (uintmax_t) 0)) |
| 924 | |
| 925 | /* Nonzero iff C is an ASCII character. */ |
| 926 | #define ASCII_CHAR_P(c) UNSIGNED_CMP (c, <, 0x80) |
| 927 | |
| 928 | /* Almost equivalent to Faref (CT, IDX) with optimization for ASCII |
| 929 | characters. Do not check validity of CT. */ |
| 930 | #define CHAR_TABLE_REF(CT, IDX) \ |
| 931 | (ASCII_CHAR_P (IDX) ? CHAR_TABLE_REF_ASCII ((CT), (IDX)) \ |
| 932 | : char_table_ref ((CT), (IDX))) |
| 933 | |
| 934 | /* Almost equivalent to Faref (CT, IDX). However, if the result is |
| 935 | not a character, return IDX. |
| 936 | |
| 937 | For these characters, do not check validity of CT |
| 938 | and do not follow parent. */ |
| 939 | #define CHAR_TABLE_TRANSLATE(CT, IDX) \ |
| 940 | char_table_translate (CT, IDX) |
| 941 | |
| 942 | /* Equivalent to Faset (CT, IDX, VAL) with optimization for ASCII and |
| 943 | 8-bit European characters. Do not check validity of CT. */ |
| 944 | #define CHAR_TABLE_SET(CT, IDX, VAL) \ |
| 945 | (ASCII_CHAR_P (IDX) && SUB_CHAR_TABLE_P (XCHAR_TABLE (CT)->ascii) \ |
| 946 | ? XSUB_CHAR_TABLE (XCHAR_TABLE (CT)->ascii)->contents[IDX] = VAL \ |
| 947 | : char_table_set (CT, IDX, VAL)) |
| 948 | |
| 949 | #define CHARTAB_SIZE_BITS_0 6 |
| 950 | #define CHARTAB_SIZE_BITS_1 4 |
| 951 | #define CHARTAB_SIZE_BITS_2 5 |
| 952 | #define CHARTAB_SIZE_BITS_3 7 |
| 953 | |
| 954 | extern const int chartab_size[4]; |
| 955 | |
| 956 | struct Lisp_Sub_Char_Table; |
| 957 | |
| 958 | struct Lisp_Char_Table |
| 959 | { |
| 960 | /* HEADER.SIZE is the vector's size field, which also holds the |
| 961 | pseudovector type information. It holds the size, too. |
| 962 | The size counts the defalt, parent, purpose, ascii, |
| 963 | contents, and extras slots. */ |
| 964 | struct vectorlike_header header; |
| 965 | |
| 966 | /* This holds a default value, |
| 967 | which is used whenever the value for a specific character is nil. */ |
| 968 | Lisp_Object defalt; |
| 969 | |
| 970 | /* This points to another char table, which we inherit from when the |
| 971 | value for a specific character is nil. The `defalt' slot takes |
| 972 | precedence over this. */ |
| 973 | Lisp_Object parent; |
| 974 | |
| 975 | /* This is a symbol which says what kind of use this char-table is |
| 976 | meant for. */ |
| 977 | Lisp_Object purpose; |
| 978 | |
| 979 | /* The bottom sub char-table for characters of the range 0..127. It |
| 980 | is nil if none of ASCII character has a specific value. */ |
| 981 | Lisp_Object ascii; |
| 982 | |
| 983 | Lisp_Object contents[(1 << CHARTAB_SIZE_BITS_0)]; |
| 984 | |
| 985 | /* These hold additional data. It is a vector. */ |
| 986 | Lisp_Object extras[1]; |
| 987 | }; |
| 988 | |
| 989 | struct Lisp_Sub_Char_Table |
| 990 | { |
| 991 | /* HEADER.SIZE is the vector's size field, which also holds the |
| 992 | pseudovector type information. It holds the size, too. */ |
| 993 | struct vectorlike_header header; |
| 994 | |
| 995 | /* Depth of this sub char-table. It should be 1, 2, or 3. A sub |
| 996 | char-table of depth 1 contains 16 elements, and each element |
| 997 | covers 4096 (128*32) characters. A sub char-table of depth 2 |
| 998 | contains 32 elements, and each element covers 128 characters. A |
| 999 | sub char-table of depth 3 contains 128 elements, and each element |
| 1000 | is for one character. */ |
| 1001 | Lisp_Object depth; |
| 1002 | |
| 1003 | /* Minimum character covered by the sub char-table. */ |
| 1004 | Lisp_Object min_char; |
| 1005 | |
| 1006 | Lisp_Object contents[1]; |
| 1007 | }; |
| 1008 | |
| 1009 | /* A boolvector is a kind of vectorlike, with contents are like a string. */ |
| 1010 | struct Lisp_Bool_Vector |
| 1011 | { |
| 1012 | /* HEADER.SIZE is the vector's size field. It doesn't have the real size, |
| 1013 | just the subtype information. */ |
| 1014 | struct vectorlike_header header; |
| 1015 | /* This is the size in bits. */ |
| 1016 | EMACS_UINT size; |
| 1017 | /* This contains the actual bits, packed into bytes. */ |
| 1018 | unsigned char data[1]; |
| 1019 | }; |
| 1020 | |
| 1021 | /* This structure describes a built-in function. |
| 1022 | It is generated by the DEFUN macro only. |
| 1023 | defsubr makes it into a Lisp object. |
| 1024 | |
| 1025 | This type is treated in most respects as a pseudovector, |
| 1026 | but since we never dynamically allocate or free them, |
| 1027 | we don't need a struct vectorlike_header and its 'next' field. */ |
| 1028 | |
| 1029 | struct Lisp_Subr |
| 1030 | { |
| 1031 | EMACS_UINT size; |
| 1032 | union { |
| 1033 | Lisp_Object (*a0) (void); |
| 1034 | Lisp_Object (*a1) (Lisp_Object); |
| 1035 | Lisp_Object (*a2) (Lisp_Object, Lisp_Object); |
| 1036 | Lisp_Object (*a3) (Lisp_Object, Lisp_Object, Lisp_Object); |
| 1037 | Lisp_Object (*a4) (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); |
| 1038 | Lisp_Object (*a5) (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); |
| 1039 | Lisp_Object (*a6) (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); |
| 1040 | Lisp_Object (*a7) (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); |
| 1041 | Lisp_Object (*a8) (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); |
| 1042 | Lisp_Object (*aUNEVALLED) (Lisp_Object args); |
| 1043 | Lisp_Object (*aMANY) (ptrdiff_t, Lisp_Object *); |
| 1044 | } function; |
| 1045 | short min_args, max_args; |
| 1046 | const char *symbol_name; |
| 1047 | const char *intspec; |
| 1048 | const char *doc; |
| 1049 | }; |
| 1050 | |
| 1051 | \f |
| 1052 | /*********************************************************************** |
| 1053 | Symbols |
| 1054 | ***********************************************************************/ |
| 1055 | |
| 1056 | /* Interned state of a symbol. */ |
| 1057 | |
| 1058 | enum symbol_interned |
| 1059 | { |
| 1060 | SYMBOL_UNINTERNED = 0, |
| 1061 | SYMBOL_INTERNED = 1, |
| 1062 | SYMBOL_INTERNED_IN_INITIAL_OBARRAY = 2 |
| 1063 | }; |
| 1064 | |
| 1065 | enum symbol_redirect |
| 1066 | { |
| 1067 | SYMBOL_PLAINVAL = 4, |
| 1068 | SYMBOL_VARALIAS = 1, |
| 1069 | SYMBOL_LOCALIZED = 2, |
| 1070 | SYMBOL_FORWARDED = 3 |
| 1071 | }; |
| 1072 | |
| 1073 | /* In a symbol, the markbit of the plist is used as the gc mark bit */ |
| 1074 | |
| 1075 | struct Lisp_Symbol |
| 1076 | { |
| 1077 | unsigned gcmarkbit : 1; |
| 1078 | |
| 1079 | /* Indicates where the value can be found: |
| 1080 | 0 : it's a plain var, the value is in the `value' field. |
| 1081 | 1 : it's a varalias, the value is really in the `alias' symbol. |
| 1082 | 2 : it's a localized var, the value is in the `blv' object. |
| 1083 | 3 : it's a forwarding variable, the value is in `forward'. |
| 1084 | */ |
| 1085 | enum symbol_redirect redirect : 3; |
| 1086 | |
| 1087 | /* Non-zero means symbol is constant, i.e. changing its value |
| 1088 | should signal an error. If the value is 3, then the var |
| 1089 | can be changed, but only by `defconst'. */ |
| 1090 | unsigned constant : 2; |
| 1091 | |
| 1092 | /* Interned state of the symbol. This is an enumerator from |
| 1093 | enum symbol_interned. */ |
| 1094 | unsigned interned : 2; |
| 1095 | |
| 1096 | /* Non-zero means that this variable has been explicitly declared |
| 1097 | special (with `defvar' etc), and shouldn't be lexically bound. */ |
| 1098 | unsigned declared_special : 1; |
| 1099 | |
| 1100 | /* The symbol's name, as a Lisp string. |
| 1101 | |
| 1102 | The name "xname" is used to intentionally break code referring to |
| 1103 | the old field "name" of type pointer to struct Lisp_String. */ |
| 1104 | Lisp_Object xname; |
| 1105 | |
| 1106 | /* Value of the symbol or Qunbound if unbound. If this symbol is a |
| 1107 | defvaralias, `alias' contains the symbol for which it is an |
| 1108 | alias. Use the SYMBOL_VALUE and SET_SYMBOL_VALUE macros to get |
| 1109 | and set a symbol's value, to take defvaralias into account. */ |
| 1110 | union { |
| 1111 | Lisp_Object value; |
| 1112 | struct Lisp_Symbol *alias; |
| 1113 | struct Lisp_Buffer_Local_Value *blv; |
| 1114 | union Lisp_Fwd *fwd; |
| 1115 | } val; |
| 1116 | |
| 1117 | /* Function value of the symbol or Qunbound if not fboundp. */ |
| 1118 | Lisp_Object function; |
| 1119 | |
| 1120 | /* The symbol's property list. */ |
| 1121 | Lisp_Object plist; |
| 1122 | |
| 1123 | /* Next symbol in obarray bucket, if the symbol is interned. */ |
| 1124 | struct Lisp_Symbol *next; |
| 1125 | }; |
| 1126 | |
| 1127 | /* Value is name of symbol. */ |
| 1128 | |
| 1129 | #define SYMBOL_VAL(sym) \ |
| 1130 | (eassert ((sym)->redirect == SYMBOL_PLAINVAL), (sym)->val.value) |
| 1131 | #define SYMBOL_ALIAS(sym) \ |
| 1132 | (eassert ((sym)->redirect == SYMBOL_VARALIAS), (sym)->val.alias) |
| 1133 | #define SYMBOL_BLV(sym) \ |
| 1134 | (eassert ((sym)->redirect == SYMBOL_LOCALIZED), (sym)->val.blv) |
| 1135 | #define SYMBOL_FWD(sym) \ |
| 1136 | (eassert ((sym)->redirect == SYMBOL_FORWARDED), (sym)->val.fwd) |
| 1137 | #define SET_SYMBOL_VAL(sym, v) \ |
| 1138 | (eassert ((sym)->redirect == SYMBOL_PLAINVAL), (sym)->val.value = (v)) |
| 1139 | #define SET_SYMBOL_ALIAS(sym, v) \ |
| 1140 | (eassert ((sym)->redirect == SYMBOL_VARALIAS), (sym)->val.alias = (v)) |
| 1141 | #define SET_SYMBOL_BLV(sym, v) \ |
| 1142 | (eassert ((sym)->redirect == SYMBOL_LOCALIZED), (sym)->val.blv = (v)) |
| 1143 | #define SET_SYMBOL_FWD(sym, v) \ |
| 1144 | (eassert ((sym)->redirect == SYMBOL_FORWARDED), (sym)->val.fwd = (v)) |
| 1145 | |
| 1146 | #define SYMBOL_NAME(sym) \ |
| 1147 | LISP_MAKE_RVALUE (XSYMBOL (sym)->xname) |
| 1148 | |
| 1149 | /* Value is non-zero if SYM is an interned symbol. */ |
| 1150 | |
| 1151 | #define SYMBOL_INTERNED_P(sym) \ |
| 1152 | (XSYMBOL (sym)->interned != SYMBOL_UNINTERNED) |
| 1153 | |
| 1154 | /* Value is non-zero if SYM is interned in initial_obarray. */ |
| 1155 | |
| 1156 | #define SYMBOL_INTERNED_IN_INITIAL_OBARRAY_P(sym) \ |
| 1157 | (XSYMBOL (sym)->interned == SYMBOL_INTERNED_IN_INITIAL_OBARRAY) |
| 1158 | |
| 1159 | /* Value is non-zero if symbol is considered a constant, i.e. its |
| 1160 | value cannot be changed (there is an exception for keyword symbols, |
| 1161 | whose value can be set to the keyword symbol itself). */ |
| 1162 | |
| 1163 | #define SYMBOL_CONSTANT_P(sym) XSYMBOL (sym)->constant |
| 1164 | |
| 1165 | \f |
| 1166 | /*********************************************************************** |
| 1167 | Hash Tables |
| 1168 | ***********************************************************************/ |
| 1169 | |
| 1170 | /* The structure of a Lisp hash table. */ |
| 1171 | |
| 1172 | struct Lisp_Hash_Table |
| 1173 | { |
| 1174 | /* This is for Lisp; the hash table code does not refer to it. */ |
| 1175 | struct vectorlike_header header; |
| 1176 | |
| 1177 | /* Function used to compare keys. */ |
| 1178 | Lisp_Object test; |
| 1179 | |
| 1180 | /* Nil if table is non-weak. Otherwise a symbol describing the |
| 1181 | weakness of the table. */ |
| 1182 | Lisp_Object weak; |
| 1183 | |
| 1184 | /* When the table is resized, and this is an integer, compute the |
| 1185 | new size by adding this to the old size. If a float, compute the |
| 1186 | new size by multiplying the old size with this factor. */ |
| 1187 | Lisp_Object rehash_size; |
| 1188 | |
| 1189 | /* Resize hash table when number of entries/ table size is >= this |
| 1190 | ratio, a float. */ |
| 1191 | Lisp_Object rehash_threshold; |
| 1192 | |
| 1193 | /* Vector of hash codes.. If hash[I] is nil, this means that that |
| 1194 | entry I is unused. */ |
| 1195 | Lisp_Object hash; |
| 1196 | |
| 1197 | /* Vector used to chain entries. If entry I is free, next[I] is the |
| 1198 | entry number of the next free item. If entry I is non-free, |
| 1199 | next[I] is the index of the next entry in the collision chain. */ |
| 1200 | Lisp_Object next; |
| 1201 | |
| 1202 | /* Index of first free entry in free list. */ |
| 1203 | Lisp_Object next_free; |
| 1204 | |
| 1205 | /* Bucket vector. A non-nil entry is the index of the first item in |
| 1206 | a collision chain. This vector's size can be larger than the |
| 1207 | hash table size to reduce collisions. */ |
| 1208 | Lisp_Object index; |
| 1209 | |
| 1210 | /* User-supplied hash function, or nil. */ |
| 1211 | Lisp_Object user_hash_function; |
| 1212 | |
| 1213 | /* User-supplied key comparison function, or nil. */ |
| 1214 | Lisp_Object user_cmp_function; |
| 1215 | |
| 1216 | /* Only the fields above are traced normally by the GC. The ones below |
| 1217 | `count' are special and are either ignored by the GC or traced in |
| 1218 | a special way (e.g. because of weakness). */ |
| 1219 | |
| 1220 | /* Number of key/value entries in the table. */ |
| 1221 | EMACS_INT count; |
| 1222 | |
| 1223 | /* Vector of keys and values. The key of item I is found at index |
| 1224 | 2 * I, the value is found at index 2 * I + 1. |
| 1225 | This is gc_marked specially if the table is weak. */ |
| 1226 | Lisp_Object key_and_value; |
| 1227 | |
| 1228 | /* Next weak hash table if this is a weak hash table. The head |
| 1229 | of the list is in weak_hash_tables. */ |
| 1230 | struct Lisp_Hash_Table *next_weak; |
| 1231 | |
| 1232 | /* C function to compare two keys. */ |
| 1233 | int (*cmpfn) (struct Lisp_Hash_Table *, |
| 1234 | Lisp_Object, EMACS_UINT, |
| 1235 | Lisp_Object, EMACS_UINT); |
| 1236 | |
| 1237 | /* C function to compute hash code. */ |
| 1238 | EMACS_UINT (*hashfn) (struct Lisp_Hash_Table *, Lisp_Object); |
| 1239 | }; |
| 1240 | |
| 1241 | |
| 1242 | #define XHASH_TABLE(OBJ) \ |
| 1243 | ((struct Lisp_Hash_Table *) XPNTR (OBJ)) |
| 1244 | |
| 1245 | #define XSET_HASH_TABLE(VAR, PTR) \ |
| 1246 | (XSETPSEUDOVECTOR (VAR, PTR, PVEC_HASH_TABLE)) |
| 1247 | |
| 1248 | #define HASH_TABLE_P(OBJ) PSEUDOVECTORP (OBJ, PVEC_HASH_TABLE) |
| 1249 | |
| 1250 | #define CHECK_HASH_TABLE(x) \ |
| 1251 | CHECK_TYPE (HASH_TABLE_P (x), Qhash_table_p, x) |
| 1252 | |
| 1253 | /* Value is the key part of entry IDX in hash table H. */ |
| 1254 | |
| 1255 | #define HASH_KEY(H, IDX) AREF ((H)->key_and_value, 2 * (IDX)) |
| 1256 | |
| 1257 | /* Value is the value part of entry IDX in hash table H. */ |
| 1258 | |
| 1259 | #define HASH_VALUE(H, IDX) AREF ((H)->key_and_value, 2 * (IDX) + 1) |
| 1260 | |
| 1261 | /* Value is the index of the next entry following the one at IDX |
| 1262 | in hash table H. */ |
| 1263 | |
| 1264 | #define HASH_NEXT(H, IDX) AREF ((H)->next, (IDX)) |
| 1265 | |
| 1266 | /* Value is the hash code computed for entry IDX in hash table H. */ |
| 1267 | |
| 1268 | #define HASH_HASH(H, IDX) AREF ((H)->hash, (IDX)) |
| 1269 | |
| 1270 | /* Value is the index of the element in hash table H that is the |
| 1271 | start of the collision list at index IDX in the index vector of H. */ |
| 1272 | |
| 1273 | #define HASH_INDEX(H, IDX) AREF ((H)->index, (IDX)) |
| 1274 | |
| 1275 | /* Value is the size of hash table H. */ |
| 1276 | |
| 1277 | #define HASH_TABLE_SIZE(H) ASIZE ((H)->next) |
| 1278 | |
| 1279 | /* Default size for hash tables if not specified. */ |
| 1280 | |
| 1281 | #define DEFAULT_HASH_SIZE 65 |
| 1282 | |
| 1283 | /* Default threshold specifying when to resize a hash table. The |
| 1284 | value gives the ratio of current entries in the hash table and the |
| 1285 | size of the hash table. */ |
| 1286 | |
| 1287 | #define DEFAULT_REHASH_THRESHOLD 0.8 |
| 1288 | |
| 1289 | /* Default factor by which to increase the size of a hash table. */ |
| 1290 | |
| 1291 | #define DEFAULT_REHASH_SIZE 1.5 |
| 1292 | |
| 1293 | \f |
| 1294 | /* These structures are used for various misc types. */ |
| 1295 | |
| 1296 | struct Lisp_Misc_Any /* Supertype of all Misc types. */ |
| 1297 | { |
| 1298 | enum Lisp_Misc_Type type : 16; /* = Lisp_Misc_??? */ |
| 1299 | unsigned gcmarkbit : 1; |
| 1300 | int spacer : 15; |
| 1301 | /* Make it as long as "Lisp_Free without padding". */ |
| 1302 | void *fill; |
| 1303 | }; |
| 1304 | |
| 1305 | struct Lisp_Marker |
| 1306 | { |
| 1307 | enum Lisp_Misc_Type type : 16; /* = Lisp_Misc_Marker */ |
| 1308 | unsigned gcmarkbit : 1; |
| 1309 | int spacer : 13; |
| 1310 | /* This flag is temporarily used in the functions |
| 1311 | decode/encode_coding_object to record that the marker position |
| 1312 | must be adjusted after the conversion. */ |
| 1313 | unsigned int need_adjustment : 1; |
| 1314 | /* 1 means normal insertion at the marker's position |
| 1315 | leaves the marker after the inserted text. */ |
| 1316 | unsigned int insertion_type : 1; |
| 1317 | /* This is the buffer that the marker points into, or 0 if it points nowhere. |
| 1318 | Note: a chain of markers can contain markers pointing into different |
| 1319 | buffers (the chain is per buffer_text rather than per buffer, so it's |
| 1320 | shared between indirect buffers). */ |
| 1321 | /* This is used for (other than NULL-checking): |
| 1322 | - Fmarker_buffer |
| 1323 | - Fset_marker: check eq(oldbuf, newbuf) to avoid unchain+rechain. |
| 1324 | - unchain_marker: to find the list from which to unchain. |
| 1325 | - Fkill_buffer: to only unchain the markers of current indirect buffer. |
| 1326 | */ |
| 1327 | struct buffer *buffer; |
| 1328 | |
| 1329 | /* The remaining fields are meaningless in a marker that |
| 1330 | does not point anywhere. */ |
| 1331 | |
| 1332 | /* For markers that point somewhere, |
| 1333 | this is used to chain of all the markers in a given buffer. */ |
| 1334 | /* We could remove it and use an array in buffer_text instead. |
| 1335 | That would also allow to preserve it ordered. */ |
| 1336 | struct Lisp_Marker *next; |
| 1337 | /* This is the char position where the marker points. */ |
| 1338 | EMACS_INT charpos; |
| 1339 | /* This is the byte position. |
| 1340 | It's mostly used as a charpos<->bytepos cache (i.e. it's not directly |
| 1341 | used to implement the functionality of markers, but rather to (ab)use |
| 1342 | markers as a cache for char<->byte mappings). */ |
| 1343 | EMACS_INT bytepos; |
| 1344 | }; |
| 1345 | |
| 1346 | /* Forwarding pointer to an int variable. |
| 1347 | This is allowed only in the value cell of a symbol, |
| 1348 | and it means that the symbol's value really lives in the |
| 1349 | specified int variable. */ |
| 1350 | struct Lisp_Intfwd |
| 1351 | { |
| 1352 | enum Lisp_Fwd_Type type; /* = Lisp_Fwd_Int */ |
| 1353 | EMACS_INT *intvar; |
| 1354 | }; |
| 1355 | |
| 1356 | /* Boolean forwarding pointer to an int variable. |
| 1357 | This is like Lisp_Intfwd except that the ostensible |
| 1358 | "value" of the symbol is t if the int variable is nonzero, |
| 1359 | nil if it is zero. */ |
| 1360 | struct Lisp_Boolfwd |
| 1361 | { |
| 1362 | enum Lisp_Fwd_Type type; /* = Lisp_Fwd_Bool */ |
| 1363 | int *boolvar; |
| 1364 | }; |
| 1365 | |
| 1366 | /* Forwarding pointer to a Lisp_Object variable. |
| 1367 | This is allowed only in the value cell of a symbol, |
| 1368 | and it means that the symbol's value really lives in the |
| 1369 | specified variable. */ |
| 1370 | struct Lisp_Objfwd |
| 1371 | { |
| 1372 | enum Lisp_Fwd_Type type; /* = Lisp_Fwd_Obj */ |
| 1373 | Lisp_Object *objvar; |
| 1374 | }; |
| 1375 | |
| 1376 | /* Like Lisp_Objfwd except that value lives in a slot in the |
| 1377 | current buffer. Value is byte index of slot within buffer. */ |
| 1378 | struct Lisp_Buffer_Objfwd |
| 1379 | { |
| 1380 | enum Lisp_Fwd_Type type; /* = Lisp_Fwd_Buffer_Obj */ |
| 1381 | int offset; |
| 1382 | Lisp_Object slottype; /* Qnil, Lisp_Int, Lisp_Symbol, or Lisp_String. */ |
| 1383 | }; |
| 1384 | |
| 1385 | /* struct Lisp_Buffer_Local_Value is used in a symbol value cell when |
| 1386 | the symbol has buffer-local or frame-local bindings. (Exception: |
| 1387 | some buffer-local variables are built-in, with their values stored |
| 1388 | in the buffer structure itself. They are handled differently, |
| 1389 | using struct Lisp_Buffer_Objfwd.) |
| 1390 | |
| 1391 | The `realvalue' slot holds the variable's current value, or a |
| 1392 | forwarding pointer to where that value is kept. This value is the |
| 1393 | one that corresponds to the loaded binding. To read or set the |
| 1394 | variable, you must first make sure the right binding is loaded; |
| 1395 | then you can access the value in (or through) `realvalue'. |
| 1396 | |
| 1397 | `buffer' and `frame' are the buffer and frame for which the loaded |
| 1398 | binding was found. If those have changed, to make sure the right |
| 1399 | binding is loaded it is necessary to find which binding goes with |
| 1400 | the current buffer and selected frame, then load it. To load it, |
| 1401 | first unload the previous binding, then copy the value of the new |
| 1402 | binding into `realvalue' (or through it). Also update |
| 1403 | LOADED-BINDING to point to the newly loaded binding. |
| 1404 | |
| 1405 | `local_if_set' indicates that merely setting the variable creates a |
| 1406 | local binding for the current buffer. Otherwise the latter, setting |
| 1407 | the variable does not do that; only make-local-variable does that. */ |
| 1408 | |
| 1409 | struct Lisp_Buffer_Local_Value |
| 1410 | { |
| 1411 | /* 1 means that merely setting the variable creates a local |
| 1412 | binding for the current buffer */ |
| 1413 | unsigned int local_if_set : 1; |
| 1414 | /* 1 means this variable can have frame-local bindings, otherwise, it is |
| 1415 | can have buffer-local bindings. The two cannot be combined. */ |
| 1416 | unsigned int frame_local : 1; |
| 1417 | /* 1 means that the binding now loaded was found. |
| 1418 | Presumably equivalent to (defcell!=valcell) */ |
| 1419 | unsigned int found : 1; |
| 1420 | /* If non-NULL, a forwarding to the C var where it should also be set. */ |
| 1421 | union Lisp_Fwd *fwd; /* Should never be (Buffer|Kboard)_Objfwd. */ |
| 1422 | /* The buffer or frame for which the loaded binding was found. */ |
| 1423 | Lisp_Object where; |
| 1424 | /* A cons cell that holds the default value. It has the form |
| 1425 | (SYMBOL . DEFAULT-VALUE). */ |
| 1426 | Lisp_Object defcell; |
| 1427 | /* The cons cell from `where's parameter alist. |
| 1428 | It always has the form (SYMBOL . VALUE) |
| 1429 | Note that if `forward' is non-nil, VALUE may be out of date. |
| 1430 | Also if the currently loaded binding is the default binding, then |
| 1431 | this is `eq'ual to defcell. */ |
| 1432 | Lisp_Object valcell; |
| 1433 | }; |
| 1434 | |
| 1435 | #define BLV_FOUND(blv) \ |
| 1436 | (eassert ((blv)->found == !EQ ((blv)->defcell, (blv)->valcell)), (blv)->found) |
| 1437 | #define SET_BLV_FOUND(blv, v) \ |
| 1438 | (eassert ((v) == !EQ ((blv)->defcell, (blv)->valcell)), (blv)->found = (v)) |
| 1439 | |
| 1440 | #define BLV_VALUE(blv) (XCDR ((blv)->valcell)) |
| 1441 | #define SET_BLV_VALUE(blv, v) (XSETCDR ((blv)->valcell, v)) |
| 1442 | |
| 1443 | /* START and END are markers in the overlay's buffer, and |
| 1444 | PLIST is the overlay's property list. */ |
| 1445 | struct Lisp_Overlay |
| 1446 | /* An overlay's real data content is: |
| 1447 | - plist |
| 1448 | - buffer |
| 1449 | - insertion type of both ends |
| 1450 | - start & start_byte |
| 1451 | - end & end_byte |
| 1452 | - next (singly linked list of overlays). |
| 1453 | - start_next and end_next (singly linked list of markers). |
| 1454 | I.e. 9words plus 2 bits, 3words of which are for external linked lists. |
| 1455 | */ |
| 1456 | { |
| 1457 | enum Lisp_Misc_Type type : 16; /* = Lisp_Misc_Overlay */ |
| 1458 | unsigned gcmarkbit : 1; |
| 1459 | int spacer : 15; |
| 1460 | struct Lisp_Overlay *next; |
| 1461 | Lisp_Object start, end, plist; |
| 1462 | }; |
| 1463 | |
| 1464 | /* Like Lisp_Objfwd except that value lives in a slot in the |
| 1465 | current kboard. */ |
| 1466 | struct Lisp_Kboard_Objfwd |
| 1467 | { |
| 1468 | enum Lisp_Fwd_Type type; /* = Lisp_Fwd_Kboard_Obj */ |
| 1469 | int offset; |
| 1470 | }; |
| 1471 | |
| 1472 | /* Hold a C pointer for later use. |
| 1473 | This type of object is used in the arg to record_unwind_protect. */ |
| 1474 | struct Lisp_Save_Value |
| 1475 | { |
| 1476 | enum Lisp_Misc_Type type : 16; /* = Lisp_Misc_Save_Value */ |
| 1477 | unsigned gcmarkbit : 1; |
| 1478 | int spacer : 14; |
| 1479 | /* If DOGC is set, POINTER is the address of a memory |
| 1480 | area containing INTEGER potential Lisp_Objects. */ |
| 1481 | unsigned int dogc : 1; |
| 1482 | void *pointer; |
| 1483 | ptrdiff_t integer; |
| 1484 | }; |
| 1485 | |
| 1486 | |
| 1487 | /* A miscellaneous object, when it's on the free list. */ |
| 1488 | struct Lisp_Free |
| 1489 | { |
| 1490 | enum Lisp_Misc_Type type : 16; /* = Lisp_Misc_Free */ |
| 1491 | unsigned gcmarkbit : 1; |
| 1492 | int spacer : 15; |
| 1493 | union Lisp_Misc *chain; |
| 1494 | #ifdef USE_LSB_TAG |
| 1495 | /* Try to make sure that sizeof(Lisp_Misc) preserves TYPEBITS-alignment. |
| 1496 | This assumes that Lisp_Marker is the largest of the alternatives and |
| 1497 | that Lisp_Misc_Any has the same size as "Lisp_Free w/o padding". */ |
| 1498 | char padding[((((sizeof (struct Lisp_Marker) - 1) >> GCTYPEBITS) + 1) |
| 1499 | << GCTYPEBITS) - sizeof (struct Lisp_Misc_Any)]; |
| 1500 | #endif |
| 1501 | }; |
| 1502 | |
| 1503 | /* To get the type field of a union Lisp_Misc, use XMISCTYPE. |
| 1504 | It uses one of these struct subtypes to get the type field. */ |
| 1505 | |
| 1506 | union Lisp_Misc |
| 1507 | { |
| 1508 | struct Lisp_Misc_Any u_any; /* Supertype of all Misc types. */ |
| 1509 | struct Lisp_Free u_free; /* Includes padding to force alignment. */ |
| 1510 | struct Lisp_Marker u_marker; /* 5 */ |
| 1511 | struct Lisp_Overlay u_overlay; /* 5 */ |
| 1512 | struct Lisp_Save_Value u_save_value; /* 3 */ |
| 1513 | }; |
| 1514 | |
| 1515 | union Lisp_Fwd |
| 1516 | { |
| 1517 | struct Lisp_Intfwd u_intfwd; /* 2 */ |
| 1518 | struct Lisp_Boolfwd u_boolfwd; /* 2 */ |
| 1519 | struct Lisp_Objfwd u_objfwd; /* 2 */ |
| 1520 | struct Lisp_Buffer_Objfwd u_buffer_objfwd; /* 2 */ |
| 1521 | struct Lisp_Kboard_Objfwd u_kboard_objfwd; /* 2 */ |
| 1522 | }; |
| 1523 | \f |
| 1524 | /* Lisp floating point type */ |
| 1525 | struct Lisp_Float |
| 1526 | { |
| 1527 | union |
| 1528 | { |
| 1529 | #ifdef HIDE_LISP_IMPLEMENTATION |
| 1530 | double data_; |
| 1531 | #else |
| 1532 | double data; |
| 1533 | #endif |
| 1534 | struct Lisp_Float *chain; |
| 1535 | } u; |
| 1536 | }; |
| 1537 | |
| 1538 | #ifdef HIDE_LISP_IMPLEMENTATION |
| 1539 | #define XFLOAT_DATA(f) (0 ? XFLOAT (f)->u.data_ : XFLOAT (f)->u.data_) |
| 1540 | #else |
| 1541 | #define XFLOAT_DATA(f) (0 ? XFLOAT (f)->u.data : XFLOAT (f)->u.data) |
| 1542 | /* This should be used only in alloc.c, which always disables |
| 1543 | HIDE_LISP_IMPLEMENTATION. */ |
| 1544 | #define XFLOAT_INIT(f,n) (XFLOAT (f)->u.data = (n)) |
| 1545 | #endif |
| 1546 | |
| 1547 | /* A character, declared with the following typedef, is a member |
| 1548 | of some character set associated with the current buffer. */ |
| 1549 | #ifndef _UCHAR_T /* Protect against something in ctab.h on AIX. */ |
| 1550 | #define _UCHAR_T |
| 1551 | typedef unsigned char UCHAR; |
| 1552 | #endif |
| 1553 | |
| 1554 | /* Meanings of slots in a Lisp_Compiled: */ |
| 1555 | |
| 1556 | #define COMPILED_ARGLIST 0 |
| 1557 | #define COMPILED_BYTECODE 1 |
| 1558 | #define COMPILED_CONSTANTS 2 |
| 1559 | #define COMPILED_STACK_DEPTH 3 |
| 1560 | #define COMPILED_DOC_STRING 4 |
| 1561 | #define COMPILED_INTERACTIVE 5 |
| 1562 | |
| 1563 | /* Flag bits in a character. These also get used in termhooks.h. |
| 1564 | Richard Stallman <rms@gnu.ai.mit.edu> thinks that MULE |
| 1565 | (MUlti-Lingual Emacs) might need 22 bits for the character value |
| 1566 | itself, so we probably shouldn't use any bits lower than 0x0400000. */ |
| 1567 | #define CHAR_ALT (0x0400000) |
| 1568 | #define CHAR_SUPER (0x0800000) |
| 1569 | #define CHAR_HYPER (0x1000000) |
| 1570 | #define CHAR_SHIFT (0x2000000) |
| 1571 | #define CHAR_CTL (0x4000000) |
| 1572 | #define CHAR_META (0x8000000) |
| 1573 | |
| 1574 | #define CHAR_MODIFIER_MASK \ |
| 1575 | (CHAR_ALT | CHAR_SUPER | CHAR_HYPER | CHAR_SHIFT | CHAR_CTL | CHAR_META) |
| 1576 | |
| 1577 | |
| 1578 | /* Actually, the current Emacs uses 22 bits for the character value |
| 1579 | itself. */ |
| 1580 | #define CHARACTERBITS 22 |
| 1581 | |
| 1582 | /* The maximum byte size consumed by push_key_description. |
| 1583 | All callers should assure that at least this size of memory is |
| 1584 | allocated at the place pointed by the second argument. |
| 1585 | |
| 1586 | There are 6 modifiers, each consumes 2 chars. |
| 1587 | The octal form of a character code consumes |
| 1588 | (1 + CHARACTERBITS / 3 + 1) chars (including backslash at the head). |
| 1589 | We need one more byte for string terminator `\0'. */ |
| 1590 | #define KEY_DESCRIPTION_SIZE ((2 * 6) + 1 + (CHARACTERBITS / 3) + 1 + 1) |
| 1591 | |
| 1592 | \f |
| 1593 | /* The glyph datatype, used to represent characters on the display. |
| 1594 | It consists of a char code and a face id. */ |
| 1595 | |
| 1596 | typedef struct { |
| 1597 | int ch; |
| 1598 | int face_id; |
| 1599 | } GLYPH; |
| 1600 | |
| 1601 | /* Return a glyph's character code. */ |
| 1602 | #define GLYPH_CHAR(glyph) ((glyph).ch) |
| 1603 | |
| 1604 | /* Return a glyph's face ID. */ |
| 1605 | #define GLYPH_FACE(glyph) ((glyph).face_id) |
| 1606 | |
| 1607 | #define SET_GLYPH_CHAR(glyph, char) ((glyph).ch = (char)) |
| 1608 | #define SET_GLYPH_FACE(glyph, face) ((glyph).face_id = (face)) |
| 1609 | #define SET_GLYPH(glyph, char, face) ((glyph).ch = (char), (glyph).face_id = (face)) |
| 1610 | |
| 1611 | /* Return 1 if GLYPH contains valid character code. */ |
| 1612 | #define GLYPH_CHAR_VALID_P(glyph) CHAR_VALID_P (GLYPH_CHAR (glyph)) |
| 1613 | |
| 1614 | |
| 1615 | /* Glyph Code from a display vector may either be an integer which |
| 1616 | encodes a char code in the lower CHARACTERBITS bits and a (very small) |
| 1617 | face-id in the upper bits, or it may be a cons (CHAR . FACE-ID). */ |
| 1618 | |
| 1619 | #define GLYPH_CODE_CHAR(gc) \ |
| 1620 | (CONSP (gc) ? XINT (XCAR (gc)) : INTEGERP (gc) ? (XINT (gc) & ((1 << CHARACTERBITS)-1)) : 0) |
| 1621 | |
| 1622 | #define GLYPH_CODE_FACE(gc) \ |
| 1623 | (CONSP (gc) ? XINT (XCDR (gc)) : INTEGERP (gc) ? (XINT (gc) >> CHARACTERBITS) : DEFAULT_FACE_ID) |
| 1624 | |
| 1625 | /* Return 1 if glyph code from display vector contains valid character code. */ |
| 1626 | #define GLYPH_CODE_CHAR_VALID_P(gc) CHAR_VALID_P (GLYPH_CODE_CHAR (gc)) |
| 1627 | |
| 1628 | #define GLYPH_CODE_P(gc) ((CONSP (gc) && INTEGERP (XCAR (gc)) && INTEGERP (XCDR (gc))) || INTEGERP (gc)) |
| 1629 | |
| 1630 | /* Only called when GLYPH_CODE_P (gc) is true. */ |
| 1631 | #define SET_GLYPH_FROM_GLYPH_CODE(glyph, gc) \ |
| 1632 | do \ |
| 1633 | { \ |
| 1634 | if (CONSP (gc)) \ |
| 1635 | SET_GLYPH (glyph, XINT (XCAR (gc)), XINT (XCDR (gc))); \ |
| 1636 | else \ |
| 1637 | SET_GLYPH (glyph, (XINT (gc) & ((1 << CHARACTERBITS)-1)), \ |
| 1638 | (XINT (gc) >> CHARACTERBITS)); \ |
| 1639 | } \ |
| 1640 | while (0) |
| 1641 | |
| 1642 | /* The ID of the mode line highlighting face. */ |
| 1643 | #define GLYPH_MODE_LINE_FACE 1 |
| 1644 | \f |
| 1645 | /* Structure to hold mouse highlight data. This is here because other |
| 1646 | header files need it for defining struct x_output etc. */ |
| 1647 | typedef struct { |
| 1648 | /* These variables describe the range of text currently shown in its |
| 1649 | mouse-face, together with the window they apply to. As long as |
| 1650 | the mouse stays within this range, we need not redraw anything on |
| 1651 | its account. Rows and columns are glyph matrix positions in |
| 1652 | MOUSE_FACE_WINDOW. */ |
| 1653 | int mouse_face_beg_row, mouse_face_beg_col; |
| 1654 | int mouse_face_beg_x, mouse_face_beg_y; |
| 1655 | int mouse_face_end_row, mouse_face_end_col; |
| 1656 | int mouse_face_end_x, mouse_face_end_y; |
| 1657 | int mouse_face_past_end; |
| 1658 | Lisp_Object mouse_face_window; |
| 1659 | int mouse_face_face_id; |
| 1660 | Lisp_Object mouse_face_overlay; |
| 1661 | |
| 1662 | /* 1 if a mouse motion event came and we didn't handle it right away because |
| 1663 | gc was in progress. */ |
| 1664 | int mouse_face_deferred_gc; |
| 1665 | |
| 1666 | /* FRAME and X, Y position of mouse when last checked for |
| 1667 | highlighting. X and Y can be negative or out of range for the frame. */ |
| 1668 | struct frame *mouse_face_mouse_frame; |
| 1669 | int mouse_face_mouse_x, mouse_face_mouse_y; |
| 1670 | |
| 1671 | /* Nonzero means defer mouse-motion highlighting. */ |
| 1672 | int mouse_face_defer; |
| 1673 | |
| 1674 | /* Nonzero means that the mouse highlight should not be shown. */ |
| 1675 | int mouse_face_hidden; |
| 1676 | |
| 1677 | int mouse_face_image_state; |
| 1678 | } Mouse_HLInfo; |
| 1679 | \f |
| 1680 | /* Data type checking */ |
| 1681 | |
| 1682 | #define NILP(x) EQ (x, Qnil) |
| 1683 | |
| 1684 | #define NUMBERP(x) (INTEGERP (x) || FLOATP (x)) |
| 1685 | #define NATNUMP(x) (INTEGERP (x) && XINT (x) >= 0) |
| 1686 | |
| 1687 | #define INTEGERP(x) (LISP_INT_TAG_P (XTYPE ((x)))) |
| 1688 | #define SYMBOLP(x) (XTYPE ((x)) == Lisp_Symbol) |
| 1689 | #define MISCP(x) (XTYPE ((x)) == Lisp_Misc) |
| 1690 | #define VECTORLIKEP(x) (XTYPE ((x)) == Lisp_Vectorlike) |
| 1691 | #define STRINGP(x) (XTYPE ((x)) == Lisp_String) |
| 1692 | #define CONSP(x) (XTYPE ((x)) == Lisp_Cons) |
| 1693 | |
| 1694 | #define FLOATP(x) (XTYPE ((x)) == Lisp_Float) |
| 1695 | #define VECTORP(x) (VECTORLIKEP (x) && !(ASIZE (x) & PSEUDOVECTOR_FLAG)) |
| 1696 | #define OVERLAYP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Overlay) |
| 1697 | #define MARKERP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Marker) |
| 1698 | #define SAVE_VALUEP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Save_Value) |
| 1699 | |
| 1700 | #define INTFWDP(x) (XFWDTYPE (x) == Lisp_Fwd_Int) |
| 1701 | #define BOOLFWDP(x) (XFWDTYPE (x) == Lisp_Fwd_Bool) |
| 1702 | #define OBJFWDP(x) (XFWDTYPE (x) == Lisp_Fwd_Obj) |
| 1703 | #define BUFFER_OBJFWDP(x) (XFWDTYPE (x) == Lisp_Fwd_Buffer_Obj) |
| 1704 | #define KBOARD_OBJFWDP(x) (XFWDTYPE (x) == Lisp_Fwd_Kboard_Obj) |
| 1705 | |
| 1706 | /* True if object X is a pseudovector whose code is CODE. The cast to struct |
| 1707 | vectorlike_header * avoids aliasing issues. */ |
| 1708 | #define PSEUDOVECTORP(x, code) \ |
| 1709 | TYPED_PSEUDOVECTORP(x, vectorlike_header, code) |
| 1710 | |
| 1711 | /* True if object X, with internal type struct T *, is a pseudovector whose |
| 1712 | code is CODE. */ |
| 1713 | #define TYPED_PSEUDOVECTORP(x, t, code) \ |
| 1714 | (VECTORLIKEP (x) \ |
| 1715 | && (((((struct t *) XPNTR (x))->size \ |
| 1716 | & (PSEUDOVECTOR_FLAG | (code)))) \ |
| 1717 | == (PSEUDOVECTOR_FLAG | (code)))) |
| 1718 | |
| 1719 | /* Test for specific pseudovector types. */ |
| 1720 | #define WINDOW_CONFIGURATIONP(x) PSEUDOVECTORP (x, PVEC_WINDOW_CONFIGURATION) |
| 1721 | #define PROCESSP(x) PSEUDOVECTORP (x, PVEC_PROCESS) |
| 1722 | #define WINDOWP(x) PSEUDOVECTORP (x, PVEC_WINDOW) |
| 1723 | #define TERMINALP(x) PSEUDOVECTORP (x, PVEC_TERMINAL) |
| 1724 | /* SUBRP is special since Lisp_Subr lacks struct vectorlike_header. */ |
| 1725 | #define SUBRP(x) TYPED_PSEUDOVECTORP (x, Lisp_Subr, PVEC_SUBR) |
| 1726 | #define COMPILEDP(x) PSEUDOVECTORP (x, PVEC_COMPILED) |
| 1727 | #define BUFFERP(x) PSEUDOVECTORP (x, PVEC_BUFFER) |
| 1728 | #define CHAR_TABLE_P(x) PSEUDOVECTORP (x, PVEC_CHAR_TABLE) |
| 1729 | #define SUB_CHAR_TABLE_P(x) PSEUDOVECTORP (x, PVEC_SUB_CHAR_TABLE) |
| 1730 | #define BOOL_VECTOR_P(x) PSEUDOVECTORP (x, PVEC_BOOL_VECTOR) |
| 1731 | #define FRAMEP(x) PSEUDOVECTORP (x, PVEC_FRAME) |
| 1732 | |
| 1733 | /* Test for image (image . spec) */ |
| 1734 | #define IMAGEP(x) (CONSP (x) && EQ (XCAR (x), Qimage)) |
| 1735 | |
| 1736 | /* Array types. */ |
| 1737 | |
| 1738 | #define ARRAYP(x) \ |
| 1739 | (VECTORP (x) || STRINGP (x) || CHAR_TABLE_P (x) || BOOL_VECTOR_P (x)) |
| 1740 | \f |
| 1741 | #define CHECK_LIST(x) \ |
| 1742 | CHECK_TYPE (CONSP (x) || NILP (x), Qlistp, x) |
| 1743 | |
| 1744 | #define CHECK_LIST_CONS(x, y) \ |
| 1745 | CHECK_TYPE (CONSP (x), Qlistp, y) |
| 1746 | |
| 1747 | #define CHECK_LIST_END(x, y) \ |
| 1748 | CHECK_TYPE (NILP (x), Qlistp, y) |
| 1749 | |
| 1750 | #define CHECK_STRING(x) \ |
| 1751 | CHECK_TYPE (STRINGP (x), Qstringp, x) |
| 1752 | |
| 1753 | #define CHECK_STRING_CAR(x) \ |
| 1754 | CHECK_TYPE (STRINGP (XCAR (x)), Qstringp, XCAR (x)) |
| 1755 | |
| 1756 | #define CHECK_CONS(x) \ |
| 1757 | CHECK_TYPE (CONSP (x), Qconsp, x) |
| 1758 | |
| 1759 | #define CHECK_SYMBOL(x) \ |
| 1760 | CHECK_TYPE (SYMBOLP (x), Qsymbolp, x) |
| 1761 | |
| 1762 | #define CHECK_CHAR_TABLE(x) \ |
| 1763 | CHECK_TYPE (CHAR_TABLE_P (x), Qchar_table_p, x) |
| 1764 | |
| 1765 | #define CHECK_VECTOR(x) \ |
| 1766 | CHECK_TYPE (VECTORP (x), Qvectorp, x) |
| 1767 | |
| 1768 | #define CHECK_VECTOR_OR_STRING(x) \ |
| 1769 | CHECK_TYPE (VECTORP (x) || STRINGP (x), Qarrayp, x) |
| 1770 | |
| 1771 | #define CHECK_ARRAY(x, Qxxxp) \ |
| 1772 | CHECK_TYPE (ARRAYP (x), Qxxxp, x) |
| 1773 | |
| 1774 | #define CHECK_VECTOR_OR_CHAR_TABLE(x) \ |
| 1775 | CHECK_TYPE (VECTORP (x) || CHAR_TABLE_P (x), Qvector_or_char_table_p, x) |
| 1776 | |
| 1777 | #define CHECK_BUFFER(x) \ |
| 1778 | CHECK_TYPE (BUFFERP (x), Qbufferp, x) |
| 1779 | |
| 1780 | #define CHECK_WINDOW(x) \ |
| 1781 | CHECK_TYPE (WINDOWP (x), Qwindowp, x) |
| 1782 | |
| 1783 | #define CHECK_WINDOW_CONFIGURATION(x) \ |
| 1784 | CHECK_TYPE (WINDOW_CONFIGURATIONP (x), Qwindow_configuration_p, x) |
| 1785 | |
| 1786 | /* This macro rejects windows on the interior of the window tree as |
| 1787 | "dead", which is what we want; this is an argument-checking macro, and |
| 1788 | the user should never get access to interior windows. |
| 1789 | |
| 1790 | A window of any sort, leaf or interior, is dead if the buffer, |
| 1791 | vchild, and hchild members are all nil. */ |
| 1792 | |
| 1793 | #define CHECK_LIVE_WINDOW(x) \ |
| 1794 | CHECK_TYPE (WINDOWP (x) && !NILP (XWINDOW (x)->buffer), Qwindow_live_p, x) |
| 1795 | |
| 1796 | #define CHECK_PROCESS(x) \ |
| 1797 | CHECK_TYPE (PROCESSP (x), Qprocessp, x) |
| 1798 | |
| 1799 | #define CHECK_SUBR(x) \ |
| 1800 | CHECK_TYPE (SUBRP (x), Qsubrp, x) |
| 1801 | |
| 1802 | #define CHECK_NUMBER(x) \ |
| 1803 | CHECK_TYPE (INTEGERP (x), Qintegerp, x) |
| 1804 | |
| 1805 | #define CHECK_NATNUM(x) \ |
| 1806 | CHECK_TYPE (NATNUMP (x), Qwholenump, x) |
| 1807 | |
| 1808 | #define CHECK_MARKER(x) \ |
| 1809 | CHECK_TYPE (MARKERP (x), Qmarkerp, x) |
| 1810 | |
| 1811 | #define CHECK_NUMBER_COERCE_MARKER(x) \ |
| 1812 | do { if (MARKERP ((x))) XSETFASTINT (x, marker_position (x)); \ |
| 1813 | else CHECK_TYPE (INTEGERP (x), Qinteger_or_marker_p, x); } while (0) |
| 1814 | |
| 1815 | #define XFLOATINT(n) extract_float((n)) |
| 1816 | |
| 1817 | #define CHECK_FLOAT(x) \ |
| 1818 | CHECK_TYPE (FLOATP (x), Qfloatp, x) |
| 1819 | |
| 1820 | #define CHECK_NUMBER_OR_FLOAT(x) \ |
| 1821 | CHECK_TYPE (FLOATP (x) || INTEGERP (x), Qnumberp, x) |
| 1822 | |
| 1823 | #define CHECK_NUMBER_OR_FLOAT_COERCE_MARKER(x) \ |
| 1824 | do { if (MARKERP (x)) XSETFASTINT (x, marker_position (x)); \ |
| 1825 | else CHECK_TYPE (INTEGERP (x) || FLOATP (x), Qnumber_or_marker_p, x); } while (0) |
| 1826 | |
| 1827 | #define CHECK_OVERLAY(x) \ |
| 1828 | CHECK_TYPE (OVERLAYP (x), Qoverlayp, x) |
| 1829 | |
| 1830 | /* Since we can't assign directly to the CAR or CDR fields of a cons |
| 1831 | cell, use these when checking that those fields contain numbers. */ |
| 1832 | #define CHECK_NUMBER_CAR(x) \ |
| 1833 | do { \ |
| 1834 | Lisp_Object tmp = XCAR (x); \ |
| 1835 | CHECK_NUMBER (tmp); \ |
| 1836 | XSETCAR ((x), tmp); \ |
| 1837 | } while (0) |
| 1838 | |
| 1839 | #define CHECK_NUMBER_CDR(x) \ |
| 1840 | do { \ |
| 1841 | Lisp_Object tmp = XCDR (x); \ |
| 1842 | CHECK_NUMBER (tmp); \ |
| 1843 | XSETCDR ((x), tmp); \ |
| 1844 | } while (0) |
| 1845 | |
| 1846 | #define CHECK_NATNUM_CAR(x) \ |
| 1847 | do { \ |
| 1848 | Lisp_Object tmp = XCAR (x); \ |
| 1849 | CHECK_NATNUM (tmp); \ |
| 1850 | XSETCAR ((x), tmp); \ |
| 1851 | } while (0) |
| 1852 | |
| 1853 | #define CHECK_NATNUM_CDR(x) \ |
| 1854 | do { \ |
| 1855 | Lisp_Object tmp = XCDR (x); \ |
| 1856 | CHECK_NATNUM (tmp); \ |
| 1857 | XSETCDR ((x), tmp); \ |
| 1858 | } while (0) |
| 1859 | |
| 1860 | /* Cast pointers to this type to compare them. */ |
| 1861 | #define PNTR_COMPARISON_TYPE uintptr_t |
| 1862 | \f |
| 1863 | /* Define a built-in function for calling from Lisp. |
| 1864 | `lname' should be the name to give the function in Lisp, |
| 1865 | as a null-terminated C string. |
| 1866 | `fnname' should be the name of the function in C. |
| 1867 | By convention, it starts with F. |
| 1868 | `sname' should be the name for the C constant structure |
| 1869 | that records information on this function for internal use. |
| 1870 | By convention, it should be the same as `fnname' but with S instead of F. |
| 1871 | It's too bad that C macros can't compute this from `fnname'. |
| 1872 | `minargs' should be a number, the minimum number of arguments allowed. |
| 1873 | `maxargs' should be a number, the maximum number of arguments allowed, |
| 1874 | or else MANY or UNEVALLED. |
| 1875 | MANY means pass a vector of evaluated arguments, |
| 1876 | in the form of an integer number-of-arguments |
| 1877 | followed by the address of a vector of Lisp_Objects |
| 1878 | which contains the argument values. |
| 1879 | UNEVALLED means pass the list of unevaluated arguments |
| 1880 | `intspec' says how interactive arguments are to be fetched. |
| 1881 | If the string starts with a `(', `intspec' is evaluated and the resulting |
| 1882 | list is the list of arguments. |
| 1883 | If it's a string that doesn't start with `(', the value should follow |
| 1884 | the one of the doc string for `interactive'. |
| 1885 | A null string means call interactively with no arguments. |
| 1886 | `doc' is documentation for the user. */ |
| 1887 | |
| 1888 | /* This version of DEFUN declares a function prototype with the right |
| 1889 | arguments, so we can catch errors with maxargs at compile-time. */ |
| 1890 | #define DEFUN(lname, fnname, sname, minargs, maxargs, intspec, doc) \ |
| 1891 | Lisp_Object fnname DEFUN_ARGS_ ## maxargs ; \ |
| 1892 | static DECL_ALIGN (struct Lisp_Subr, sname) = \ |
| 1893 | { PVEC_SUBR | (sizeof (struct Lisp_Subr) / sizeof (EMACS_INT)), \ |
| 1894 | { .a ## maxargs = fnname }, \ |
| 1895 | minargs, maxargs, lname, intspec, 0}; \ |
| 1896 | Lisp_Object fnname |
| 1897 | |
| 1898 | /* Note that the weird token-substitution semantics of ANSI C makes |
| 1899 | this work for MANY and UNEVALLED. */ |
| 1900 | #define DEFUN_ARGS_MANY (ptrdiff_t, Lisp_Object *) |
| 1901 | #define DEFUN_ARGS_UNEVALLED (Lisp_Object) |
| 1902 | #define DEFUN_ARGS_0 (void) |
| 1903 | #define DEFUN_ARGS_1 (Lisp_Object) |
| 1904 | #define DEFUN_ARGS_2 (Lisp_Object, Lisp_Object) |
| 1905 | #define DEFUN_ARGS_3 (Lisp_Object, Lisp_Object, Lisp_Object) |
| 1906 | #define DEFUN_ARGS_4 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object) |
| 1907 | #define DEFUN_ARGS_5 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \ |
| 1908 | Lisp_Object) |
| 1909 | #define DEFUN_ARGS_6 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \ |
| 1910 | Lisp_Object, Lisp_Object) |
| 1911 | #define DEFUN_ARGS_7 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \ |
| 1912 | Lisp_Object, Lisp_Object, Lisp_Object) |
| 1913 | #define DEFUN_ARGS_8 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \ |
| 1914 | Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object) |
| 1915 | |
| 1916 | /* Non-zero if OBJ is a Lisp function. */ |
| 1917 | #define FUNCTIONP(OBJ) \ |
| 1918 | ((CONSP (OBJ) && EQ (XCAR (OBJ), Qlambda)) \ |
| 1919 | || (SYMBOLP (OBJ) && !NILP (Ffboundp (OBJ))) \ |
| 1920 | || COMPILEDP (OBJ) \ |
| 1921 | || SUBRP (OBJ)) |
| 1922 | |
| 1923 | /* defsubr (Sname); |
| 1924 | is how we define the symbol for function `name' at start-up time. */ |
| 1925 | extern void defsubr (struct Lisp_Subr *); |
| 1926 | |
| 1927 | #define MANY -2 |
| 1928 | #define UNEVALLED -1 |
| 1929 | |
| 1930 | extern void defvar_lisp (struct Lisp_Objfwd *, const char *, Lisp_Object *); |
| 1931 | extern void defvar_lisp_nopro (struct Lisp_Objfwd *, const char *, Lisp_Object *); |
| 1932 | extern void defvar_bool (struct Lisp_Boolfwd *, const char *, int *); |
| 1933 | extern void defvar_int (struct Lisp_Intfwd *, const char *, EMACS_INT *); |
| 1934 | extern void defvar_kboard (struct Lisp_Kboard_Objfwd *, const char *, int); |
| 1935 | |
| 1936 | /* Macros we use to define forwarded Lisp variables. |
| 1937 | These are used in the syms_of_FILENAME functions. |
| 1938 | |
| 1939 | An ordinary (not in buffer_defaults, per-buffer, or per-keyboard) |
| 1940 | lisp variable is actually a field in `struct emacs_globals'. The |
| 1941 | field's name begins with "f_", which is a convention enforced by |
| 1942 | these macros. Each such global has a corresponding #define in |
| 1943 | globals.h; the plain name should be used in the code. |
| 1944 | |
| 1945 | E.g., the global "cons_cells_consed" is declared as "int |
| 1946 | f_cons_cells_consed" in globals.h, but there is a define: |
| 1947 | |
| 1948 | #define cons_cells_consed globals.f_cons_cells_consed |
| 1949 | |
| 1950 | All C code uses the `cons_cells_consed' name. This is all done |
| 1951 | this way to support indirection for multi-threaded Emacs. */ |
| 1952 | |
| 1953 | #define DEFVAR_LISP(lname, vname, doc) \ |
| 1954 | do { \ |
| 1955 | static struct Lisp_Objfwd o_fwd; \ |
| 1956 | defvar_lisp (&o_fwd, lname, &globals.f_ ## vname); \ |
| 1957 | } while (0) |
| 1958 | #define DEFVAR_LISP_NOPRO(lname, vname, doc) \ |
| 1959 | do { \ |
| 1960 | static struct Lisp_Objfwd o_fwd; \ |
| 1961 | defvar_lisp_nopro (&o_fwd, lname, &globals.f_ ## vname); \ |
| 1962 | } while (0) |
| 1963 | #define DEFVAR_BOOL(lname, vname, doc) \ |
| 1964 | do { \ |
| 1965 | static struct Lisp_Boolfwd b_fwd; \ |
| 1966 | defvar_bool (&b_fwd, lname, &globals.f_ ## vname); \ |
| 1967 | } while (0) |
| 1968 | #define DEFVAR_INT(lname, vname, doc) \ |
| 1969 | do { \ |
| 1970 | static struct Lisp_Intfwd i_fwd; \ |
| 1971 | defvar_int (&i_fwd, lname, &globals.f_ ## vname); \ |
| 1972 | } while (0) |
| 1973 | |
| 1974 | #define DEFVAR_BUFFER_DEFAULTS(lname, vname, doc) \ |
| 1975 | do { \ |
| 1976 | static struct Lisp_Objfwd o_fwd; \ |
| 1977 | defvar_lisp_nopro (&o_fwd, lname, &BVAR (&buffer_defaults, vname)); \ |
| 1978 | } while (0) |
| 1979 | |
| 1980 | #define DEFVAR_KBOARD(lname, vname, doc) \ |
| 1981 | do { \ |
| 1982 | static struct Lisp_Kboard_Objfwd ko_fwd; \ |
| 1983 | defvar_kboard (&ko_fwd, \ |
| 1984 | lname, \ |
| 1985 | (int)((char *)(¤t_kboard->vname ## _) \ |
| 1986 | - (char *)current_kboard)); \ |
| 1987 | } while (0) |
| 1988 | |
| 1989 | |
| 1990 | \f |
| 1991 | /* Structure for recording Lisp call stack for backtrace purposes. */ |
| 1992 | |
| 1993 | /* The special binding stack holds the outer values of variables while |
| 1994 | they are bound by a function application or a let form, stores the |
| 1995 | code to be executed for Lisp unwind-protect forms, and stores the C |
| 1996 | functions to be called for record_unwind_protect. |
| 1997 | |
| 1998 | If func is non-zero, undoing this binding applies func to old_value; |
| 1999 | This implements record_unwind_protect. |
| 2000 | |
| 2001 | Otherwise, the element is a variable binding. |
| 2002 | |
| 2003 | If the symbol field is a symbol, it is an ordinary variable binding. |
| 2004 | |
| 2005 | Otherwise, it should be a structure (SYMBOL WHERE . CURRENT-BUFFER), |
| 2006 | which means having bound a local value while CURRENT-BUFFER was active. |
| 2007 | If WHERE is nil this means we saw the default value when binding SYMBOL. |
| 2008 | WHERE being a buffer or frame means we saw a buffer-local or frame-local |
| 2009 | value. Other values of WHERE mean an internal error. */ |
| 2010 | |
| 2011 | typedef Lisp_Object (*specbinding_func) (Lisp_Object); |
| 2012 | |
| 2013 | struct specbinding |
| 2014 | { |
| 2015 | Lisp_Object symbol, old_value; |
| 2016 | specbinding_func func; |
| 2017 | Lisp_Object unused; /* Dividing by 16 is faster than by 12 */ |
| 2018 | }; |
| 2019 | |
| 2020 | extern struct specbinding *specpdl; |
| 2021 | extern struct specbinding *specpdl_ptr; |
| 2022 | extern EMACS_INT specpdl_size; |
| 2023 | |
| 2024 | #define SPECPDL_INDEX() ((int) (specpdl_ptr - specpdl)) |
| 2025 | |
| 2026 | /* Everything needed to describe an active condition case. */ |
| 2027 | struct handler |
| 2028 | { |
| 2029 | /* The handler clauses and variable from the condition-case form. */ |
| 2030 | /* For a handler set up in Lisp code, this is always a list. |
| 2031 | For an internal handler set up by internal_condition_case*, |
| 2032 | this can instead be the symbol t or `error'. |
| 2033 | t: handle all conditions. |
| 2034 | error: handle all conditions, and errors can run the debugger |
| 2035 | or display a backtrace. */ |
| 2036 | Lisp_Object handler; |
| 2037 | Lisp_Object var; |
| 2038 | /* Fsignal stores here the condition-case clause that applies, |
| 2039 | and Fcondition_case thus knows which clause to run. */ |
| 2040 | Lisp_Object chosen_clause; |
| 2041 | |
| 2042 | /* Used to effect the longjump out to the handler. */ |
| 2043 | struct catchtag *tag; |
| 2044 | |
| 2045 | /* The next enclosing handler. */ |
| 2046 | struct handler *next; |
| 2047 | }; |
| 2048 | |
| 2049 | /* This structure helps implement the `catch' and `throw' control |
| 2050 | structure. A struct catchtag contains all the information needed |
| 2051 | to restore the state of the interpreter after a non-local jump. |
| 2052 | |
| 2053 | Handlers for error conditions (represented by `struct handler' |
| 2054 | structures) just point to a catch tag to do the cleanup required |
| 2055 | for their jumps. |
| 2056 | |
| 2057 | catchtag structures are chained together in the C calling stack; |
| 2058 | the `next' member points to the next outer catchtag. |
| 2059 | |
| 2060 | A call like (throw TAG VAL) searches for a catchtag whose `tag' |
| 2061 | member is TAG, and then unbinds to it. The `val' member is used to |
| 2062 | hold VAL while the stack is unwound; `val' is returned as the value |
| 2063 | of the catch form. |
| 2064 | |
| 2065 | All the other members are concerned with restoring the interpreter |
| 2066 | state. */ |
| 2067 | |
| 2068 | struct catchtag |
| 2069 | { |
| 2070 | Lisp_Object tag; |
| 2071 | Lisp_Object val; |
| 2072 | struct catchtag *next; |
| 2073 | struct gcpro *gcpro; |
| 2074 | jmp_buf jmp; |
| 2075 | struct backtrace *backlist; |
| 2076 | struct handler *handlerlist; |
| 2077 | int lisp_eval_depth; |
| 2078 | int pdlcount; |
| 2079 | int poll_suppress_count; |
| 2080 | int interrupt_input_blocked; |
| 2081 | struct byte_stack *byte_stack; |
| 2082 | }; |
| 2083 | |
| 2084 | extern Lisp_Object memory_signal_data; |
| 2085 | |
| 2086 | /* An address near the bottom of the stack. |
| 2087 | Tells GC how to save a copy of the stack. */ |
| 2088 | extern char *stack_bottom; |
| 2089 | |
| 2090 | /* Check quit-flag and quit if it is non-nil. |
| 2091 | Typing C-g does not directly cause a quit; it only sets Vquit_flag. |
| 2092 | So the program needs to do QUIT at times when it is safe to quit. |
| 2093 | Every loop that might run for a long time or might not exit |
| 2094 | ought to do QUIT at least once, at a safe place. |
| 2095 | Unless that is impossible, of course. |
| 2096 | But it is very desirable to avoid creating loops where QUIT is impossible. |
| 2097 | |
| 2098 | Exception: if you set immediate_quit to nonzero, |
| 2099 | then the handler that responds to the C-g does the quit itself. |
| 2100 | This is a good thing to do around a loop that has no side effects |
| 2101 | and (in particular) cannot call arbitrary Lisp code. */ |
| 2102 | |
| 2103 | #ifdef SYNC_INPUT |
| 2104 | extern void process_pending_signals (void); |
| 2105 | extern int pending_signals; |
| 2106 | #define ELSE_PENDING_SIGNALS \ |
| 2107 | else if (pending_signals) \ |
| 2108 | process_pending_signals (); |
| 2109 | #else /* not SYNC_INPUT */ |
| 2110 | #define ELSE_PENDING_SIGNALS |
| 2111 | #endif /* not SYNC_INPUT */ |
| 2112 | |
| 2113 | #define QUIT \ |
| 2114 | do { \ |
| 2115 | if (!NILP (Vquit_flag) && NILP (Vinhibit_quit)) \ |
| 2116 | { \ |
| 2117 | Lisp_Object flag = Vquit_flag; \ |
| 2118 | Vquit_flag = Qnil; \ |
| 2119 | if (EQ (Vthrow_on_input, flag)) \ |
| 2120 | Fthrow (Vthrow_on_input, Qt); \ |
| 2121 | Fsignal (Qquit, Qnil); \ |
| 2122 | } \ |
| 2123 | ELSE_PENDING_SIGNALS \ |
| 2124 | } while (0) |
| 2125 | |
| 2126 | |
| 2127 | /* Nonzero if ought to quit now. */ |
| 2128 | |
| 2129 | #define QUITP (!NILP (Vquit_flag) && NILP (Vinhibit_quit)) |
| 2130 | \f |
| 2131 | extern Lisp_Object Vascii_downcase_table; |
| 2132 | extern Lisp_Object Vascii_canon_table; |
| 2133 | \f |
| 2134 | /* Number of bytes of structure consed since last GC. */ |
| 2135 | |
| 2136 | extern EMACS_INT consing_since_gc; |
| 2137 | |
| 2138 | extern EMACS_INT gc_relative_threshold; |
| 2139 | |
| 2140 | extern EMACS_INT memory_full_cons_threshold; |
| 2141 | |
| 2142 | /* Structure for recording stack slots that need marking. */ |
| 2143 | |
| 2144 | /* This is a chain of structures, each of which points at a Lisp_Object |
| 2145 | variable whose value should be marked in garbage collection. |
| 2146 | Normally every link of the chain is an automatic variable of a function, |
| 2147 | and its `val' points to some argument or local variable of the function. |
| 2148 | On exit to the function, the chain is set back to the value it had on entry. |
| 2149 | This way, no link remains in the chain when the stack frame containing the |
| 2150 | link disappears. |
| 2151 | |
| 2152 | Every function that can call Feval must protect in this fashion all |
| 2153 | Lisp_Object variables whose contents will be used again. */ |
| 2154 | |
| 2155 | extern struct gcpro *gcprolist; |
| 2156 | |
| 2157 | struct gcpro |
| 2158 | { |
| 2159 | struct gcpro *next; |
| 2160 | |
| 2161 | /* Address of first protected variable. */ |
| 2162 | volatile Lisp_Object *var; |
| 2163 | |
| 2164 | /* Number of consecutive protected variables. */ |
| 2165 | ptrdiff_t nvars; |
| 2166 | |
| 2167 | #ifdef DEBUG_GCPRO |
| 2168 | int level; |
| 2169 | #endif |
| 2170 | }; |
| 2171 | |
| 2172 | /* Values of GC_MARK_STACK during compilation: |
| 2173 | |
| 2174 | 0 Use GCPRO as before |
| 2175 | 1 Do the real thing, make GCPROs and UNGCPRO no-ops. |
| 2176 | 2 Mark the stack, and check that everything GCPRO'd is |
| 2177 | marked. |
| 2178 | 3 Mark using GCPRO's, mark stack last, and count how many |
| 2179 | dead objects are kept alive. */ |
| 2180 | |
| 2181 | |
| 2182 | #define GC_USE_GCPROS_AS_BEFORE 0 |
| 2183 | #define GC_MAKE_GCPROS_NOOPS 1 |
| 2184 | #define GC_MARK_STACK_CHECK_GCPROS 2 |
| 2185 | #define GC_USE_GCPROS_CHECK_ZOMBIES 3 |
| 2186 | |
| 2187 | #ifndef GC_MARK_STACK |
| 2188 | #define GC_MARK_STACK GC_USE_GCPROS_AS_BEFORE |
| 2189 | #endif |
| 2190 | |
| 2191 | /* Whether we do the stack marking manually. */ |
| 2192 | #define BYTE_MARK_STACK !(GC_MARK_STACK == GC_MAKE_GCPROS_NOOPS \ |
| 2193 | || GC_MARK_STACK == GC_MARK_STACK_CHECK_GCPROS) |
| 2194 | |
| 2195 | |
| 2196 | #define GCPRO1(var) \ |
| 2197 | GCPRO1_VAR (var, gcpro) |
| 2198 | #define GCPRO2(var1, var2) \ |
| 2199 | GCPRO2_VAR (var1, var2, gcpro) |
| 2200 | #define GCPRO3(var1, var2, var3) \ |
| 2201 | GCPRO3_VAR (var1, var2, var3, gcpro) |
| 2202 | #define GCPRO4(var1, var2, var3, var4) \ |
| 2203 | GCPRO4_VAR (var1, var2, var3, var4, gcpro) |
| 2204 | #define GCPRO5(var1, var2, var3, var4, var5) \ |
| 2205 | GCPRO5_VAR (var1, var2, var3, var4, var5, gcpro) |
| 2206 | #define GCPRO6(var1, var2, var3, var4, var5, var6) \ |
| 2207 | GCPRO6_VAR (var1, var2, var3, var4, var5, var6, gcpro) |
| 2208 | #define UNGCPRO UNGCPRO_VAR (gcpro) |
| 2209 | |
| 2210 | #if GC_MARK_STACK == GC_MAKE_GCPROS_NOOPS |
| 2211 | |
| 2212 | /* Do something silly with gcproN vars just so gcc shuts up. */ |
| 2213 | /* You get warnings from MIPSPro... */ |
| 2214 | |
| 2215 | #define GCPRO1_VAR(var, gcpro) ((void) gcpro##1) |
| 2216 | #define GCPRO2_VAR(var1, var2, gcpro) \ |
| 2217 | ((void) gcpro##2, (void) gcpro##1) |
| 2218 | #define GCPRO3_VAR(var1, var2, var3, gcpro) \ |
| 2219 | ((void) gcpro##3, (void) gcpro##2, (void) gcpro##1) |
| 2220 | #define GCPRO4_VAR(var1, var2, var3, var4, gcpro) \ |
| 2221 | ((void) gcpro##4, (void) gcpro##3, (void) gcpro##2, (void) gcpro##1) |
| 2222 | #define GCPRO5_VAR(var1, var2, var3, var4, var5, gcpro) \ |
| 2223 | ((void) gcpro##5, (void) gcpro##4, (void) gcpro##3, (void) gcpro##2, \ |
| 2224 | (void) gcpro##1) |
| 2225 | #define GCPRO6_VAR(var1, var2, var3, var4, var5, var6, gcpro) \ |
| 2226 | ((void) gcpro##6, (void) gcpro##5, (void) gcpro##4, (void) gcpro##3, \ |
| 2227 | (void) gcpro##2, (void) gcpro##1) |
| 2228 | #define UNGCPRO_VAR(gcpro) ((void) 0) |
| 2229 | |
| 2230 | #else /* GC_MARK_STACK != GC_MAKE_GCPROS_NOOPS */ |
| 2231 | |
| 2232 | #ifndef DEBUG_GCPRO |
| 2233 | |
| 2234 | #define GCPRO1_VAR(var, gcpro) \ |
| 2235 | {gcpro##1.next = gcprolist; gcpro##1.var = &var; gcpro##1.nvars = 1; \ |
| 2236 | gcprolist = &gcpro##1; } |
| 2237 | |
| 2238 | #define GCPRO2_VAR(var1, var2, gcpro) \ |
| 2239 | {gcpro##1.next = gcprolist; gcpro##1.var = &var1; gcpro##1.nvars = 1; \ |
| 2240 | gcpro##2.next = &gcpro##1; gcpro##2.var = &var2; gcpro##2.nvars = 1; \ |
| 2241 | gcprolist = &gcpro##2; } |
| 2242 | |
| 2243 | #define GCPRO3_VAR(var1, var2, var3, gcpro) \ |
| 2244 | {gcpro##1.next = gcprolist; gcpro##1.var = &var1; gcpro##1.nvars = 1; \ |
| 2245 | gcpro##2.next = &gcpro##1; gcpro##2.var = &var2; gcpro##2.nvars = 1; \ |
| 2246 | gcpro##3.next = &gcpro##2; gcpro##3.var = &var3; gcpro##3.nvars = 1; \ |
| 2247 | gcprolist = &gcpro##3; } |
| 2248 | |
| 2249 | #define GCPRO4_VAR(var1, var2, var3, var4, gcpro) \ |
| 2250 | {gcpro##1.next = gcprolist; gcpro##1.var = &var1; gcpro##1.nvars = 1; \ |
| 2251 | gcpro##2.next = &gcpro##1; gcpro##2.var = &var2; gcpro##2.nvars = 1; \ |
| 2252 | gcpro##3.next = &gcpro##2; gcpro##3.var = &var3; gcpro##3.nvars = 1; \ |
| 2253 | gcpro##4.next = &gcpro##3; gcpro##4.var = &var4; gcpro##4.nvars = 1; \ |
| 2254 | gcprolist = &gcpro##4; } |
| 2255 | |
| 2256 | #define GCPRO5_VAR(var1, var2, var3, var4, var5, gcpro) \ |
| 2257 | {gcpro##1.next = gcprolist; gcpro##1.var = &var1; gcpro##1.nvars = 1; \ |
| 2258 | gcpro##2.next = &gcpro##1; gcpro##2.var = &var2; gcpro##2.nvars = 1; \ |
| 2259 | gcpro##3.next = &gcpro##2; gcpro##3.var = &var3; gcpro##3.nvars = 1; \ |
| 2260 | gcpro##4.next = &gcpro##3; gcpro##4.var = &var4; gcpro##4.nvars = 1; \ |
| 2261 | gcpro##5.next = &gcpro##4; gcpro##5.var = &var5; gcpro##5.nvars = 1; \ |
| 2262 | gcprolist = &gcpro##5; } |
| 2263 | |
| 2264 | #define GCPRO6_VAR(var1, var2, var3, var4, var5, var6, gcpro) \ |
| 2265 | {gcpro##1.next = gcprolist; gcpro##1.var = &var1; gcpro##1.nvars = 1; \ |
| 2266 | gcpro##2.next = &gcpro##1; gcpro##2.var = &var2; gcpro##2.nvars = 1; \ |
| 2267 | gcpro##3.next = &gcpro##2; gcpro##3.var = &var3; gcpro##3.nvars = 1; \ |
| 2268 | gcpro##4.next = &gcpro##3; gcpro##4.var = &var4; gcpro##4.nvars = 1; \ |
| 2269 | gcpro##5.next = &gcpro##4; gcpro##5.var = &var5; gcpro##5.nvars = 1; \ |
| 2270 | gcpro##6.next = &gcpro##5; gcpro##6.var = &var6; gcpro##6.nvars = 1; \ |
| 2271 | gcprolist = &gcpro##6; } |
| 2272 | |
| 2273 | #define UNGCPRO_VAR(gcpro) (gcprolist = gcpro##1.next) |
| 2274 | |
| 2275 | #else |
| 2276 | |
| 2277 | extern int gcpro_level; |
| 2278 | |
| 2279 | #define GCPRO1_VAR(var, gcpro) \ |
| 2280 | {gcpro##1.next = gcprolist; gcpro##1.var = &var; gcpro##1.nvars = 1; \ |
| 2281 | gcpro##1.level = gcpro_level++; \ |
| 2282 | gcprolist = &gcpro##1; } |
| 2283 | |
| 2284 | #define GCPRO2_VAR(var1, var2, gcpro) \ |
| 2285 | {gcpro##1.next = gcprolist; gcpro##1.var = &var1; gcpro##1.nvars = 1; \ |
| 2286 | gcpro##1.level = gcpro_level; \ |
| 2287 | gcpro##2.next = &gcpro##1; gcpro##2.var = &var2; gcpro##2.nvars = 1; \ |
| 2288 | gcpro##2.level = gcpro_level++; \ |
| 2289 | gcprolist = &gcpro##2; } |
| 2290 | |
| 2291 | #define GCPRO3_VAR(var1, var2, var3, gcpro) \ |
| 2292 | {gcpro##1.next = gcprolist; gcpro##1.var = &var1; gcpro##1.nvars = 1; \ |
| 2293 | gcpro##1.level = gcpro_level; \ |
| 2294 | gcpro##2.next = &gcpro##1; gcpro##2.var = &var2; gcpro##2.nvars = 1; \ |
| 2295 | gcpro##3.next = &gcpro##2; gcpro##3.var = &var3; gcpro##3.nvars = 1; \ |
| 2296 | gcpro##3.level = gcpro_level++; \ |
| 2297 | gcprolist = &gcpro##3; } |
| 2298 | |
| 2299 | #define GCPRO4_VAR(var1, var2, var3, var4, gcpro) \ |
| 2300 | {gcpro##1.next = gcprolist; gcpro##1.var = &var1; gcpro##1.nvars = 1; \ |
| 2301 | gcpro##1.level = gcpro_level; \ |
| 2302 | gcpro##2.next = &gcpro##1; gcpro##2.var = &var2; gcpro##2.nvars = 1; \ |
| 2303 | gcpro##3.next = &gcpro##2; gcpro##3.var = &var3; gcpro##3.nvars = 1; \ |
| 2304 | gcpro##4.next = &gcpro##3; gcpro##4.var = &var4; gcpro##4.nvars = 1; \ |
| 2305 | gcpro##4.level = gcpro_level++; \ |
| 2306 | gcprolist = &gcpro##4; } |
| 2307 | |
| 2308 | #define GCPRO5_VAR(var1, var2, var3, var4, var5, gcpro) \ |
| 2309 | {gcpro##1.next = gcprolist; gcpro##1.var = &var1; gcpro##1.nvars = 1; \ |
| 2310 | gcpro##1.level = gcpro_level; \ |
| 2311 | gcpro##2.next = &gcpro##1; gcpro##2.var = &var2; gcpro##2.nvars = 1; \ |
| 2312 | gcpro##3.next = &gcpro##2; gcpro##3.var = &var3; gcpro##3.nvars = 1; \ |
| 2313 | gcpro##4.next = &gcpro##3; gcpro##4.var = &var4; gcpro##4.nvars = 1; \ |
| 2314 | gcpro##5.next = &gcpro##4; gcpro##5.var = &var5; gcpro##5.nvars = 1; \ |
| 2315 | gcpro##5.level = gcpro_level++; \ |
| 2316 | gcprolist = &gcpro##5; } |
| 2317 | |
| 2318 | #define GCPRO6_VAR(var1, var2, var3, var4, var5, var6, gcpro) \ |
| 2319 | {gcpro##1.next = gcprolist; gcpro##1.var = &var1; gcpro##1.nvars = 1; \ |
| 2320 | gcpro##1.level = gcpro_level; \ |
| 2321 | gcpro##2.next = &gcpro##1; gcpro##2.var = &var2; gcpro##2.nvars = 1; \ |
| 2322 | gcpro##3.next = &gcpro##2; gcpro##3.var = &var3; gcpro##3.nvars = 1; \ |
| 2323 | gcpro##4.next = &gcpro##3; gcpro##4.var = &var4; gcpro##4.nvars = 1; \ |
| 2324 | gcpro##5.next = &gcpro##4; gcpro##5.var = &var5; gcpro##5.nvars = 1; \ |
| 2325 | gcpro##6.next = &gcpro##5; gcpro##6.var = &var6; gcpro##6.nvars = 1; \ |
| 2326 | gcpro##6.level = gcpro_level++; \ |
| 2327 | gcprolist = &gcpro##6; } |
| 2328 | |
| 2329 | #define UNGCPRO_VAR(gcpro) \ |
| 2330 | ((--gcpro_level != gcpro##1.level) \ |
| 2331 | ? (abort (), 0) \ |
| 2332 | : ((gcprolist = gcpro##1.next), 0)) |
| 2333 | |
| 2334 | #endif /* DEBUG_GCPRO */ |
| 2335 | #endif /* GC_MARK_STACK != GC_MAKE_GCPROS_NOOPS */ |
| 2336 | |
| 2337 | |
| 2338 | /* Evaluate expr, UNGCPRO, and then return the value of expr. */ |
| 2339 | #define RETURN_UNGCPRO(expr) \ |
| 2340 | do \ |
| 2341 | { \ |
| 2342 | Lisp_Object ret_ungc_val; \ |
| 2343 | ret_ungc_val = (expr); \ |
| 2344 | UNGCPRO; \ |
| 2345 | return ret_ungc_val; \ |
| 2346 | } \ |
| 2347 | while (0) |
| 2348 | |
| 2349 | /* Call staticpro (&var) to protect static variable `var'. */ |
| 2350 | |
| 2351 | void staticpro (Lisp_Object *); |
| 2352 | \f |
| 2353 | /* Declare a Lisp-callable function. The MAXARGS parameter has the same |
| 2354 | meaning as in the DEFUN macro, and is used to construct a prototype. */ |
| 2355 | /* We can use the same trick as in the DEFUN macro to generate the |
| 2356 | appropriate prototype. */ |
| 2357 | #define EXFUN(fnname, maxargs) \ |
| 2358 | extern Lisp_Object fnname DEFUN_ARGS_ ## maxargs |
| 2359 | |
| 2360 | /* Forward declarations for prototypes. */ |
| 2361 | struct window; |
| 2362 | struct frame; |
| 2363 | |
| 2364 | /* Defined in data.c. */ |
| 2365 | extern Lisp_Object Qnil, Qt, Qquote, Qlambda, Qunbound; |
| 2366 | extern Lisp_Object Qerror_conditions, Qerror_message, Qtop_level; |
| 2367 | extern Lisp_Object Qerror, Qquit, Qargs_out_of_range; |
| 2368 | extern Lisp_Object Qvoid_variable, Qvoid_function; |
| 2369 | extern Lisp_Object Qinvalid_read_syntax; |
| 2370 | extern Lisp_Object Qinvalid_function, Qwrong_number_of_arguments, Qno_catch; |
| 2371 | extern Lisp_Object Qend_of_file, Qarith_error, Qmark_inactive; |
| 2372 | extern Lisp_Object Qbeginning_of_buffer, Qend_of_buffer, Qbuffer_read_only; |
| 2373 | extern Lisp_Object Qtext_read_only; |
| 2374 | extern Lisp_Object Qinteractive_form; |
| 2375 | extern Lisp_Object Qcircular_list; |
| 2376 | extern Lisp_Object Qintegerp, Qwholenump, Qsymbolp, Qlistp, Qconsp; |
| 2377 | extern Lisp_Object Qstringp, Qarrayp, Qsequencep, Qbufferp; |
| 2378 | extern Lisp_Object Qchar_or_string_p, Qmarkerp, Qinteger_or_marker_p, Qvectorp; |
| 2379 | extern Lisp_Object Qbuffer_or_string_p; |
| 2380 | extern Lisp_Object Qfboundp; |
| 2381 | extern Lisp_Object Qchar_table_p, Qvector_or_char_table_p; |
| 2382 | |
| 2383 | extern Lisp_Object Qcdr; |
| 2384 | |
| 2385 | extern Lisp_Object Qrange_error, Qdomain_error, Qsingularity_error; |
| 2386 | extern Lisp_Object Qoverflow_error, Qunderflow_error; |
| 2387 | |
| 2388 | extern Lisp_Object Qfloatp; |
| 2389 | extern Lisp_Object Qnumberp, Qnumber_or_marker_p; |
| 2390 | |
| 2391 | extern Lisp_Object Qinteger; |
| 2392 | |
| 2393 | extern Lisp_Object Qfont_spec, Qfont_entity, Qfont_object; |
| 2394 | |
| 2395 | EXFUN (Finteractive_form, 1); |
| 2396 | EXFUN (Fbyteorder, 0); |
| 2397 | |
| 2398 | /* Defined in frame.c */ |
| 2399 | extern Lisp_Object Qframep; |
| 2400 | |
| 2401 | /* Defined in data.c */ |
| 2402 | EXFUN (Fcar, 1); |
| 2403 | EXFUN (Fcar_safe, 1); |
| 2404 | EXFUN (Fcdr, 1); |
| 2405 | EXFUN (Fcdr_safe, 1); |
| 2406 | EXFUN (Fsetcar, 2); |
| 2407 | EXFUN (Fsetcdr, 2); |
| 2408 | EXFUN (Fboundp, 1); |
| 2409 | EXFUN (Ffboundp, 1); |
| 2410 | EXFUN (Fsymbol_function, 1); |
| 2411 | EXFUN (Fsymbol_name, 1); |
| 2412 | extern Lisp_Object indirect_function (Lisp_Object); |
| 2413 | EXFUN (Findirect_function, 2); |
| 2414 | EXFUN (Ffset, 2); |
| 2415 | EXFUN (Fsymbol_value, 1); |
| 2416 | extern Lisp_Object find_symbol_value (Lisp_Object); |
| 2417 | EXFUN (Fset, 2); |
| 2418 | EXFUN (Fdefault_value, 1); |
| 2419 | EXFUN (Fset_default, 2); |
| 2420 | EXFUN (Fdefault_boundp, 1); |
| 2421 | EXFUN (Fmake_local_variable, 1); |
| 2422 | EXFUN (Flocal_variable_p, 2); |
| 2423 | |
| 2424 | EXFUN (Faref, 2); |
| 2425 | EXFUN (Faset, 3); |
| 2426 | |
| 2427 | EXFUN (Fstring_to_number, 2); |
| 2428 | EXFUN (Fnumber_to_string, 1); |
| 2429 | EXFUN (Fgtr, 2); |
| 2430 | EXFUN (Flss, 2); |
| 2431 | EXFUN (Fgeq, 2); |
| 2432 | EXFUN (Fleq, 2); |
| 2433 | EXFUN (Fzerop, 1); |
| 2434 | EXFUN (Fplus, MANY); |
| 2435 | EXFUN (Fminus, MANY); |
| 2436 | EXFUN (Ftimes, MANY); |
| 2437 | EXFUN (Fquo, MANY); |
| 2438 | EXFUN (Frem, 2); |
| 2439 | EXFUN (Fmax, MANY); |
| 2440 | EXFUN (Fmin, MANY); |
| 2441 | |
| 2442 | EXFUN (Fadd1, 1); |
| 2443 | EXFUN (Fsub1, 1); |
| 2444 | EXFUN (Fmake_variable_buffer_local, 1); |
| 2445 | |
| 2446 | /* Convert the integer I to an Emacs representation, either the integer |
| 2447 | itself, or a cons of two or three integers, or if all else fails a float. |
| 2448 | I should not have side effects. */ |
| 2449 | #define INTEGER_TO_CONS(i) \ |
| 2450 | (! FIXNUM_OVERFLOW_P (i) \ |
| 2451 | ? make_number (i) \ |
| 2452 | : ! ((FIXNUM_OVERFLOW_P (INTMAX_MIN >> 16) \ |
| 2453 | || FIXNUM_OVERFLOW_P (UINTMAX_MAX >> 16)) \ |
| 2454 | && FIXNUM_OVERFLOW_P ((i) >> 16)) \ |
| 2455 | ? Fcons (make_number ((i) >> 16), make_number ((i) & 0xffff)) \ |
| 2456 | : ! ((FIXNUM_OVERFLOW_P (INTMAX_MIN >> 16 >> 24) \ |
| 2457 | || FIXNUM_OVERFLOW_P (UINTMAX_MAX >> 16 >> 24)) \ |
| 2458 | && FIXNUM_OVERFLOW_P ((i) >> 16 >> 24)) \ |
| 2459 | ? Fcons (make_number ((i) >> 16 >> 24), \ |
| 2460 | Fcons (make_number ((i) >> 16 & 0xffffff), \ |
| 2461 | make_number ((i) & 0xffff))) \ |
| 2462 | : make_float (i)) |
| 2463 | |
| 2464 | /* Convert the Emacs representation CONS back to an integer of type |
| 2465 | TYPE, storing the result the variable VAR. Signal an error if CONS |
| 2466 | is not a valid representation or is out of range for TYPE. */ |
| 2467 | #define CONS_TO_INTEGER(cons, type, var) \ |
| 2468 | (TYPE_SIGNED (type) \ |
| 2469 | ? ((var) = cons_to_signed (cons, TYPE_MINIMUM (type), TYPE_MAXIMUM (type))) \ |
| 2470 | : ((var) = cons_to_unsigned (cons, TYPE_MAXIMUM (type)))) |
| 2471 | extern intmax_t cons_to_signed (Lisp_Object, intmax_t, intmax_t); |
| 2472 | extern uintmax_t cons_to_unsigned (Lisp_Object, uintmax_t); |
| 2473 | |
| 2474 | extern struct Lisp_Symbol *indirect_variable (struct Lisp_Symbol *); |
| 2475 | extern void args_out_of_range (Lisp_Object, Lisp_Object) NO_RETURN; |
| 2476 | extern void args_out_of_range_3 (Lisp_Object, Lisp_Object, |
| 2477 | Lisp_Object) NO_RETURN; |
| 2478 | extern Lisp_Object wrong_type_argument (Lisp_Object, Lisp_Object) NO_RETURN; |
| 2479 | extern Lisp_Object do_symval_forwarding (union Lisp_Fwd *); |
| 2480 | extern void set_internal (Lisp_Object, Lisp_Object, Lisp_Object, int); |
| 2481 | extern void syms_of_data (void); |
| 2482 | extern void init_data (void); |
| 2483 | extern void swap_in_global_binding (struct Lisp_Symbol *); |
| 2484 | |
| 2485 | /* Defined in cmds.c */ |
| 2486 | EXFUN (Fend_of_line, 1); |
| 2487 | EXFUN (Fforward_char, 1); |
| 2488 | EXFUN (Fforward_line, 1); |
| 2489 | extern void syms_of_cmds (void); |
| 2490 | extern void keys_of_cmds (void); |
| 2491 | |
| 2492 | /* Defined in coding.c */ |
| 2493 | extern Lisp_Object Qcharset; |
| 2494 | EXFUN (Fcoding_system_p, 1); |
| 2495 | EXFUN (Fcoding_system_base, 1); |
| 2496 | EXFUN (Fcoding_system_eol_type, 1); |
| 2497 | EXFUN (Fcheck_coding_system, 1); |
| 2498 | EXFUN (Fread_coding_system, 2); |
| 2499 | EXFUN (Fread_non_nil_coding_system, 1); |
| 2500 | EXFUN (Ffind_operation_coding_system, MANY); |
| 2501 | EXFUN (Fdecode_coding_string, 4); |
| 2502 | extern Lisp_Object detect_coding_system (const unsigned char *, EMACS_INT, |
| 2503 | EMACS_INT, int, int, Lisp_Object); |
| 2504 | extern void init_coding (void); |
| 2505 | extern void init_coding_once (void); |
| 2506 | extern void syms_of_coding (void); |
| 2507 | |
| 2508 | /* Defined in character.c */ |
| 2509 | EXFUN (Fchar_width, 1); |
| 2510 | EXFUN (Fstring, MANY); |
| 2511 | extern EMACS_INT chars_in_text (const unsigned char *, EMACS_INT); |
| 2512 | extern EMACS_INT multibyte_chars_in_text (const unsigned char *, EMACS_INT); |
| 2513 | extern int multibyte_char_to_unibyte (int); |
| 2514 | extern int multibyte_char_to_unibyte_safe (int); |
| 2515 | extern void init_character_once (void); |
| 2516 | extern void syms_of_character (void); |
| 2517 | |
| 2518 | /* Defined in charset.c */ |
| 2519 | extern void init_charset (void); |
| 2520 | extern void init_charset_once (void); |
| 2521 | extern void syms_of_charset (void); |
| 2522 | /* Structure forward declarations. */ |
| 2523 | struct charset; |
| 2524 | |
| 2525 | /* Defined in composite.c */ |
| 2526 | extern void syms_of_composite (void); |
| 2527 | |
| 2528 | /* Defined in syntax.c */ |
| 2529 | EXFUN (Fforward_word, 1); |
| 2530 | EXFUN (Fskip_chars_forward, 2); |
| 2531 | EXFUN (Fskip_chars_backward, 2); |
| 2532 | extern void init_syntax_once (void); |
| 2533 | extern void syms_of_syntax (void); |
| 2534 | |
| 2535 | /* Defined in fns.c */ |
| 2536 | extern Lisp_Object QCrehash_size, QCrehash_threshold; |
| 2537 | extern EMACS_INT next_almost_prime (EMACS_INT); |
| 2538 | extern Lisp_Object larger_vector (Lisp_Object, EMACS_INT, Lisp_Object); |
| 2539 | extern void sweep_weak_hash_tables (void); |
| 2540 | extern Lisp_Object Qcursor_in_echo_area; |
| 2541 | extern Lisp_Object Qstring_lessp; |
| 2542 | extern Lisp_Object QCsize, QCtest, QCweakness, Qequal, Qeq, Qeql; |
| 2543 | EMACS_UINT sxhash (Lisp_Object, int); |
| 2544 | Lisp_Object make_hash_table (Lisp_Object, Lisp_Object, Lisp_Object, |
| 2545 | Lisp_Object, Lisp_Object, Lisp_Object, |
| 2546 | Lisp_Object); |
| 2547 | EMACS_INT hash_lookup (struct Lisp_Hash_Table *, Lisp_Object, EMACS_UINT *); |
| 2548 | EMACS_INT hash_put (struct Lisp_Hash_Table *, Lisp_Object, Lisp_Object, |
| 2549 | EMACS_UINT); |
| 2550 | void init_weak_hash_tables (void); |
| 2551 | extern void init_fns (void); |
| 2552 | EXFUN (Fmake_hash_table, MANY); |
| 2553 | EXFUN (Fgethash, 3); |
| 2554 | EXFUN (Fputhash, 3); |
| 2555 | EXFUN (Fremhash, 2); |
| 2556 | |
| 2557 | EXFUN (Fidentity, 1); |
| 2558 | EXFUN (Flength, 1); |
| 2559 | EXFUN (Fappend, MANY); |
| 2560 | EXFUN (Fconcat, MANY); |
| 2561 | EXFUN (Fvconcat, MANY); |
| 2562 | EXFUN (Fcopy_sequence, 1); |
| 2563 | EXFUN (Fstring_make_multibyte, 1); |
| 2564 | EXFUN (Fstring_make_unibyte, 1); |
| 2565 | EXFUN (Fstring_as_multibyte, 1); |
| 2566 | EXFUN (Fstring_as_unibyte, 1); |
| 2567 | EXFUN (Fstring_to_multibyte, 1); |
| 2568 | EXFUN (Fsubstring, 3); |
| 2569 | extern Lisp_Object substring_both (Lisp_Object, EMACS_INT, EMACS_INT, |
| 2570 | EMACS_INT, EMACS_INT); |
| 2571 | EXFUN (Fnth, 2); |
| 2572 | EXFUN (Fnthcdr, 2); |
| 2573 | EXFUN (Fmemq, 2); |
| 2574 | EXFUN (Fassq, 2); |
| 2575 | EXFUN (Fassoc, 2); |
| 2576 | EXFUN (Felt, 2); |
| 2577 | EXFUN (Fmember, 2); |
| 2578 | EXFUN (Frassq, 2); |
| 2579 | EXFUN (Fdelq, 2); |
| 2580 | EXFUN (Fdelete, 2); |
| 2581 | EXFUN (Fsort, 2); |
| 2582 | EXFUN (Freverse, 1); |
| 2583 | EXFUN (Fnreverse, 1); |
| 2584 | EXFUN (Fget, 2); |
| 2585 | EXFUN (Fput, 3); |
| 2586 | EXFUN (Fequal, 2); |
| 2587 | EXFUN (Fnconc, MANY); |
| 2588 | EXFUN (Fmapcar, 2); |
| 2589 | EXFUN (Fmapconcat, 3); |
| 2590 | extern Lisp_Object do_yes_or_no_p (Lisp_Object); |
| 2591 | EXFUN (Fprovide, 2); |
| 2592 | extern Lisp_Object concat2 (Lisp_Object, Lisp_Object); |
| 2593 | extern Lisp_Object concat3 (Lisp_Object, Lisp_Object, Lisp_Object); |
| 2594 | extern Lisp_Object nconc2 (Lisp_Object, Lisp_Object); |
| 2595 | extern Lisp_Object assq_no_quit (Lisp_Object, Lisp_Object); |
| 2596 | extern Lisp_Object assoc_no_quit (Lisp_Object, Lisp_Object); |
| 2597 | extern void clear_string_char_byte_cache (void); |
| 2598 | extern EMACS_INT string_char_to_byte (Lisp_Object, EMACS_INT); |
| 2599 | extern EMACS_INT string_byte_to_char (Lisp_Object, EMACS_INT); |
| 2600 | extern Lisp_Object string_to_multibyte (Lisp_Object); |
| 2601 | extern Lisp_Object string_make_unibyte (Lisp_Object); |
| 2602 | EXFUN (Fcopy_alist, 1); |
| 2603 | EXFUN (Fplist_get, 2); |
| 2604 | EXFUN (Fplist_put, 3); |
| 2605 | EXFUN (Fplist_member, 2); |
| 2606 | EXFUN (Frassoc, 2); |
| 2607 | EXFUN (Fstring_equal, 2); |
| 2608 | EXFUN (Fcompare_strings, 7); |
| 2609 | EXFUN (Fstring_lessp, 2); |
| 2610 | extern void syms_of_fns (void); |
| 2611 | |
| 2612 | /* Defined in floatfns.c */ |
| 2613 | extern double extract_float (Lisp_Object); |
| 2614 | EXFUN (Ffloat, 1); |
| 2615 | EXFUN (Ftruncate, 2); |
| 2616 | extern void init_floatfns (void); |
| 2617 | extern void syms_of_floatfns (void); |
| 2618 | extern Lisp_Object fmod_float (Lisp_Object x, Lisp_Object y); |
| 2619 | |
| 2620 | /* Defined in fringe.c */ |
| 2621 | extern void syms_of_fringe (void); |
| 2622 | extern void init_fringe (void); |
| 2623 | #ifdef HAVE_WINDOW_SYSTEM |
| 2624 | extern void mark_fringe_data (void); |
| 2625 | extern void init_fringe_once (void); |
| 2626 | #endif /* HAVE_WINDOW_SYSTEM */ |
| 2627 | |
| 2628 | /* Defined in image.c */ |
| 2629 | extern Lisp_Object QCascent, QCmargin, QCrelief; |
| 2630 | extern Lisp_Object QCconversion; |
| 2631 | extern int x_bitmap_mask (struct frame *, int); |
| 2632 | extern void syms_of_image (void); |
| 2633 | extern void init_image (void); |
| 2634 | |
| 2635 | /* Defined in insdel.c */ |
| 2636 | extern Lisp_Object Qinhibit_modification_hooks; |
| 2637 | extern void move_gap (EMACS_INT); |
| 2638 | extern void move_gap_both (EMACS_INT, EMACS_INT); |
| 2639 | extern void buffer_overflow (void) NO_RETURN; |
| 2640 | extern void make_gap (EMACS_INT); |
| 2641 | extern EMACS_INT copy_text (const unsigned char *, unsigned char *, |
| 2642 | EMACS_INT, int, int); |
| 2643 | extern int count_combining_before (const unsigned char *, |
| 2644 | EMACS_INT, EMACS_INT, EMACS_INT); |
| 2645 | extern int count_combining_after (const unsigned char *, |
| 2646 | EMACS_INT, EMACS_INT, EMACS_INT); |
| 2647 | extern void insert (const char *, EMACS_INT); |
| 2648 | extern void insert_and_inherit (const char *, EMACS_INT); |
| 2649 | extern void insert_1 (const char *, EMACS_INT, int, int, int); |
| 2650 | extern void insert_1_both (const char *, EMACS_INT, EMACS_INT, |
| 2651 | int, int, int); |
| 2652 | extern void insert_from_gap (EMACS_INT, EMACS_INT); |
| 2653 | extern void insert_from_string (Lisp_Object, EMACS_INT, EMACS_INT, |
| 2654 | EMACS_INT, EMACS_INT, int); |
| 2655 | extern void insert_from_buffer (struct buffer *, EMACS_INT, EMACS_INT, int); |
| 2656 | extern void insert_char (int); |
| 2657 | extern void insert_string (const char *); |
| 2658 | extern void insert_before_markers (const char *, EMACS_INT); |
| 2659 | extern void insert_before_markers_and_inherit (const char *, EMACS_INT); |
| 2660 | extern void insert_from_string_before_markers (Lisp_Object, EMACS_INT, |
| 2661 | EMACS_INT, EMACS_INT, |
| 2662 | EMACS_INT, int); |
| 2663 | extern void del_range (EMACS_INT, EMACS_INT); |
| 2664 | extern Lisp_Object del_range_1 (EMACS_INT, EMACS_INT, int, int); |
| 2665 | extern void del_range_byte (EMACS_INT, EMACS_INT, int); |
| 2666 | extern void del_range_both (EMACS_INT, EMACS_INT, EMACS_INT, EMACS_INT, int); |
| 2667 | extern Lisp_Object del_range_2 (EMACS_INT, EMACS_INT, |
| 2668 | EMACS_INT, EMACS_INT, int); |
| 2669 | extern void modify_region (struct buffer *, EMACS_INT, EMACS_INT, int); |
| 2670 | extern void prepare_to_modify_buffer (EMACS_INT, EMACS_INT, EMACS_INT *); |
| 2671 | extern void signal_after_change (EMACS_INT, EMACS_INT, EMACS_INT); |
| 2672 | extern void adjust_after_insert (EMACS_INT, EMACS_INT, EMACS_INT, |
| 2673 | EMACS_INT, EMACS_INT); |
| 2674 | extern void adjust_markers_for_delete (EMACS_INT, EMACS_INT, |
| 2675 | EMACS_INT, EMACS_INT); |
| 2676 | extern void replace_range (EMACS_INT, EMACS_INT, Lisp_Object, int, int, int); |
| 2677 | extern void replace_range_2 (EMACS_INT, EMACS_INT, EMACS_INT, EMACS_INT, |
| 2678 | const char *, EMACS_INT, EMACS_INT, int); |
| 2679 | extern void syms_of_insdel (void); |
| 2680 | |
| 2681 | /* Defined in dispnew.c */ |
| 2682 | extern Lisp_Object selected_frame; |
| 2683 | extern Lisp_Object Vwindow_system; |
| 2684 | EXFUN (Fding, 1); |
| 2685 | EXFUN (Fredraw_frame, 1); |
| 2686 | EXFUN (Fsleep_for, 2); |
| 2687 | EXFUN (Fredisplay, 1); |
| 2688 | extern Lisp_Object sit_for (Lisp_Object, int, int); |
| 2689 | extern void init_display (void); |
| 2690 | extern void syms_of_display (void); |
| 2691 | |
| 2692 | /* Defined in xdisp.c */ |
| 2693 | extern Lisp_Object Qinhibit_point_motion_hooks; |
| 2694 | extern Lisp_Object Qinhibit_redisplay, Qdisplay; |
| 2695 | extern Lisp_Object Qmenu_bar_update_hook; |
| 2696 | extern Lisp_Object Qwindow_scroll_functions; |
| 2697 | extern Lisp_Object Qoverriding_local_map, Qoverriding_terminal_local_map; |
| 2698 | extern Lisp_Object Qimage, Qtext, Qboth, Qboth_horiz, Qtext_image_horiz; |
| 2699 | extern Lisp_Object Qspace, Qcenter, QCalign_to; |
| 2700 | extern Lisp_Object Qbar, Qhbar, Qbox, Qhollow; |
| 2701 | extern Lisp_Object Qleft_margin, Qright_margin; |
| 2702 | extern Lisp_Object Qglyphless_char; |
| 2703 | extern Lisp_Object QCdata, QCfile; |
| 2704 | extern Lisp_Object QCmap; |
| 2705 | extern Lisp_Object Qrisky_local_variable; |
| 2706 | extern struct frame *last_glyphless_glyph_frame; |
| 2707 | extern unsigned last_glyphless_glyph_face_id; |
| 2708 | extern int last_glyphless_glyph_merged_face_id; |
| 2709 | extern int noninteractive_need_newline; |
| 2710 | extern Lisp_Object echo_area_buffer[2]; |
| 2711 | extern void add_to_log (const char *, Lisp_Object, Lisp_Object); |
| 2712 | extern void check_message_stack (void); |
| 2713 | extern void setup_echo_area_for_printing (int); |
| 2714 | extern int push_message (void); |
| 2715 | extern Lisp_Object pop_message_unwind (Lisp_Object); |
| 2716 | extern Lisp_Object restore_message_unwind (Lisp_Object); |
| 2717 | extern void restore_message (void); |
| 2718 | extern Lisp_Object current_message (void); |
| 2719 | extern void clear_message (int, int); |
| 2720 | extern void message (const char *, ...) ATTRIBUTE_FORMAT_PRINTF (1, 2); |
| 2721 | extern void message1 (const char *); |
| 2722 | extern void message1_nolog (const char *); |
| 2723 | extern void message2 (const char *, EMACS_INT, int); |
| 2724 | extern void message2_nolog (const char *, EMACS_INT, int); |
| 2725 | extern void message3 (Lisp_Object, EMACS_INT, int); |
| 2726 | extern void message3_nolog (Lisp_Object, EMACS_INT, int); |
| 2727 | extern void message_dolog (const char *, EMACS_INT, int, int); |
| 2728 | extern void message_with_string (const char *, Lisp_Object, int); |
| 2729 | extern void message_log_maybe_newline (void); |
| 2730 | extern void update_echo_area (void); |
| 2731 | extern void truncate_echo_area (EMACS_INT); |
| 2732 | extern void redisplay (void); |
| 2733 | extern void redisplay_preserve_echo_area (int); |
| 2734 | extern void prepare_menu_bars (void); |
| 2735 | |
| 2736 | void set_frame_cursor_types (struct frame *, Lisp_Object); |
| 2737 | extern void syms_of_xdisp (void); |
| 2738 | extern void init_xdisp (void); |
| 2739 | extern Lisp_Object safe_eval (Lisp_Object); |
| 2740 | extern int pos_visible_p (struct window *, EMACS_INT, int *, |
| 2741 | int *, int *, int *, int *, int *); |
| 2742 | |
| 2743 | /* Defined in xsettings.c */ |
| 2744 | extern void syms_of_xsettings (void); |
| 2745 | |
| 2746 | /* Defined in vm-limit.c. */ |
| 2747 | extern void memory_warnings (POINTER_TYPE *, void (*warnfun) (const char *)); |
| 2748 | |
| 2749 | /* Defined in alloc.c */ |
| 2750 | extern void check_pure_size (void); |
| 2751 | extern void allocate_string_data (struct Lisp_String *, EMACS_INT, EMACS_INT); |
| 2752 | extern void reset_malloc_hooks (void); |
| 2753 | extern void uninterrupt_malloc (void); |
| 2754 | extern void malloc_warning (const char *); |
| 2755 | extern void memory_full (size_t) NO_RETURN; |
| 2756 | extern void buffer_memory_full (EMACS_INT) NO_RETURN; |
| 2757 | extern int survives_gc_p (Lisp_Object); |
| 2758 | extern void mark_object (Lisp_Object); |
| 2759 | #if defined REL_ALLOC && !defined SYSTEM_MALLOC |
| 2760 | extern void refill_memory_reserve (void); |
| 2761 | #endif |
| 2762 | extern const char *pending_malloc_warning; |
| 2763 | extern Lisp_Object *stack_base; |
| 2764 | EXFUN (Fcons, 2); |
| 2765 | extern Lisp_Object list1 (Lisp_Object); |
| 2766 | extern Lisp_Object list2 (Lisp_Object, Lisp_Object); |
| 2767 | extern Lisp_Object list3 (Lisp_Object, Lisp_Object, Lisp_Object); |
| 2768 | extern Lisp_Object list4 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); |
| 2769 | extern Lisp_Object list5 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, |
| 2770 | Lisp_Object); |
| 2771 | EXFUN (Flist, MANY); |
| 2772 | EXFUN (Fmake_list, 2); |
| 2773 | extern Lisp_Object allocate_misc (void); |
| 2774 | EXFUN (Fmake_vector, 2); |
| 2775 | EXFUN (Fvector, MANY); |
| 2776 | EXFUN (Fmake_symbol, 1); |
| 2777 | EXFUN (Fmake_marker, 0); |
| 2778 | extern void string_overflow (void) NO_RETURN; |
| 2779 | EXFUN (Fmake_string, 2); |
| 2780 | extern Lisp_Object build_string (const char *); |
| 2781 | extern Lisp_Object make_string (const char *, EMACS_INT); |
| 2782 | extern Lisp_Object make_unibyte_string (const char *, EMACS_INT); |
| 2783 | extern Lisp_Object make_multibyte_string (const char *, EMACS_INT, EMACS_INT); |
| 2784 | extern Lisp_Object make_event_array (int, Lisp_Object *); |
| 2785 | extern Lisp_Object make_uninit_string (EMACS_INT); |
| 2786 | extern Lisp_Object make_uninit_multibyte_string (EMACS_INT, EMACS_INT); |
| 2787 | extern Lisp_Object make_string_from_bytes (const char *, EMACS_INT, EMACS_INT); |
| 2788 | extern Lisp_Object make_specified_string (const char *, |
| 2789 | EMACS_INT, EMACS_INT, int); |
| 2790 | EXFUN (Fpurecopy, 1); |
| 2791 | extern Lisp_Object make_pure_string (const char *, EMACS_INT, EMACS_INT, int); |
| 2792 | extern Lisp_Object make_pure_c_string (const char *data); |
| 2793 | extern Lisp_Object pure_cons (Lisp_Object, Lisp_Object); |
| 2794 | extern Lisp_Object make_pure_vector (EMACS_INT); |
| 2795 | EXFUN (Fgarbage_collect, 0); |
| 2796 | EXFUN (Fmake_byte_code, MANY); |
| 2797 | EXFUN (Fmake_bool_vector, 2); |
| 2798 | extern Lisp_Object Qchar_table_extra_slots; |
| 2799 | extern struct Lisp_Vector *allocate_vector (EMACS_INT); |
| 2800 | extern struct Lisp_Vector *allocate_pseudovector (int memlen, int lisplen, EMACS_INT tag); |
| 2801 | #define ALLOCATE_PSEUDOVECTOR(typ,field,tag) \ |
| 2802 | ((typ*) \ |
| 2803 | allocate_pseudovector \ |
| 2804 | (VECSIZE (typ), PSEUDOVECSIZE (typ, field), tag)) |
| 2805 | extern struct Lisp_Hash_Table *allocate_hash_table (void); |
| 2806 | extern struct window *allocate_window (void); |
| 2807 | extern struct frame *allocate_frame (void); |
| 2808 | extern struct Lisp_Process *allocate_process (void); |
| 2809 | extern struct terminal *allocate_terminal (void); |
| 2810 | extern int gc_in_progress; |
| 2811 | extern int abort_on_gc; |
| 2812 | extern Lisp_Object make_float (double); |
| 2813 | extern void display_malloc_warning (void); |
| 2814 | extern int inhibit_garbage_collection (void); |
| 2815 | extern Lisp_Object make_save_value (void *, ptrdiff_t); |
| 2816 | extern void free_marker (Lisp_Object); |
| 2817 | extern void free_cons (struct Lisp_Cons *); |
| 2818 | extern void init_alloc_once (void); |
| 2819 | extern void init_alloc (void); |
| 2820 | extern void syms_of_alloc (void); |
| 2821 | extern struct buffer * allocate_buffer (void); |
| 2822 | extern int valid_lisp_object_p (Lisp_Object); |
| 2823 | |
| 2824 | /* Defined in chartab.c */ |
| 2825 | EXFUN (Fmake_char_table, 2); |
| 2826 | EXFUN (Fset_char_table_parent, 2); |
| 2827 | EXFUN (Fchar_table_extra_slot, 2); |
| 2828 | EXFUN (Fset_char_table_extra_slot, 3); |
| 2829 | EXFUN (Fset_char_table_range, 3); |
| 2830 | EXFUN (Foptimize_char_table, 2); |
| 2831 | extern Lisp_Object copy_char_table (Lisp_Object); |
| 2832 | extern Lisp_Object char_table_ref (Lisp_Object, int); |
| 2833 | extern Lisp_Object char_table_ref_and_range (Lisp_Object, int, |
| 2834 | int *, int *); |
| 2835 | extern Lisp_Object char_table_set (Lisp_Object, int, Lisp_Object); |
| 2836 | extern Lisp_Object char_table_set_range (Lisp_Object, int, int, |
| 2837 | Lisp_Object); |
| 2838 | extern int char_table_translate (Lisp_Object, int); |
| 2839 | extern void map_char_table (void (*) (Lisp_Object, Lisp_Object, |
| 2840 | Lisp_Object), |
| 2841 | Lisp_Object, Lisp_Object, Lisp_Object); |
| 2842 | extern void map_char_table_for_charset (void (*c_function) (Lisp_Object, Lisp_Object), |
| 2843 | Lisp_Object, Lisp_Object, |
| 2844 | Lisp_Object, struct charset *, |
| 2845 | unsigned, unsigned); |
| 2846 | extern void syms_of_chartab (void); |
| 2847 | |
| 2848 | /* Defined in print.c */ |
| 2849 | extern Lisp_Object Vprin1_to_string_buffer; |
| 2850 | extern void debug_print (Lisp_Object) EXTERNALLY_VISIBLE; |
| 2851 | EXFUN (Fprin1, 2); |
| 2852 | EXFUN (Fprin1_to_string, 2); |
| 2853 | EXFUN (Fterpri, 1); |
| 2854 | EXFUN (Fprint, 2); |
| 2855 | EXFUN (Ferror_message_string, 1); |
| 2856 | extern Lisp_Object Qstandard_output; |
| 2857 | extern Lisp_Object Qexternal_debugging_output; |
| 2858 | extern void temp_output_buffer_setup (const char *); |
| 2859 | extern int print_level; |
| 2860 | extern Lisp_Object Qprint_escape_newlines; |
| 2861 | extern void write_string (const char *, int); |
| 2862 | extern void print_error_message (Lisp_Object, Lisp_Object, const char *, |
| 2863 | Lisp_Object); |
| 2864 | extern Lisp_Object internal_with_output_to_temp_buffer |
| 2865 | (const char *, Lisp_Object (*) (Lisp_Object), Lisp_Object); |
| 2866 | #define FLOAT_TO_STRING_BUFSIZE 350 |
| 2867 | extern void float_to_string (char *, double); |
| 2868 | extern void syms_of_print (void); |
| 2869 | |
| 2870 | /* Defined in doprnt.c */ |
| 2871 | extern size_t doprnt (char *, size_t, const char *, const char *, va_list); |
| 2872 | |
| 2873 | /* Defined in lread.c. */ |
| 2874 | extern Lisp_Object Qvariable_documentation, Qstandard_input; |
| 2875 | extern Lisp_Object Qbackquote, Qcomma, Qcomma_at, Qcomma_dot, Qfunction; |
| 2876 | EXFUN (Fread, 1); |
| 2877 | EXFUN (Fread_from_string, 3); |
| 2878 | EXFUN (Fintern, 2); |
| 2879 | EXFUN (Fintern_soft, 2); |
| 2880 | EXFUN (Funintern, 2); |
| 2881 | EXFUN (Fload, 5); |
| 2882 | EXFUN (Fget_load_suffixes, 0); |
| 2883 | EXFUN (Fread_char, 3); |
| 2884 | EXFUN (Fread_event, 3); |
| 2885 | extern Lisp_Object check_obarray (Lisp_Object); |
| 2886 | extern Lisp_Object intern (const char *); |
| 2887 | extern Lisp_Object intern_c_string (const char *); |
| 2888 | extern Lisp_Object oblookup (Lisp_Object, const char *, EMACS_INT, EMACS_INT); |
| 2889 | #define LOADHIST_ATTACH(x) \ |
| 2890 | do { \ |
| 2891 | if (initialized) Vcurrent_load_list = Fcons (x, Vcurrent_load_list); \ |
| 2892 | } while (0) |
| 2893 | extern int openp (Lisp_Object, Lisp_Object, Lisp_Object, |
| 2894 | Lisp_Object *, Lisp_Object); |
| 2895 | Lisp_Object string_to_number (char const *, int, int); |
| 2896 | extern void map_obarray (Lisp_Object, void (*) (Lisp_Object, Lisp_Object), |
| 2897 | Lisp_Object); |
| 2898 | extern void dir_warning (const char *, Lisp_Object); |
| 2899 | extern void close_load_descs (void); |
| 2900 | extern void init_obarray (void); |
| 2901 | extern void init_lread (void); |
| 2902 | extern void syms_of_lread (void); |
| 2903 | |
| 2904 | /* Defined in eval.c. */ |
| 2905 | extern Lisp_Object Qautoload, Qexit, Qinteractive, Qcommandp, Qdefun, Qmacro; |
| 2906 | extern Lisp_Object Qinhibit_quit, Qclosure; |
| 2907 | extern Lisp_Object Qand_rest; |
| 2908 | extern Lisp_Object Vautoload_queue; |
| 2909 | extern Lisp_Object Vsignaling_function; |
| 2910 | extern int handling_signal; |
| 2911 | #if BYTE_MARK_STACK |
| 2912 | extern struct catchtag *catchlist; |
| 2913 | extern struct handler *handlerlist; |
| 2914 | #endif |
| 2915 | /* To run a normal hook, use the appropriate function from the list below. |
| 2916 | The calling convention: |
| 2917 | |
| 2918 | if (!NILP (Vrun_hooks)) |
| 2919 | call1 (Vrun_hooks, Qmy_funny_hook); |
| 2920 | |
| 2921 | should no longer be used. */ |
| 2922 | extern Lisp_Object Vrun_hooks; |
| 2923 | EXFUN (Frun_hooks, MANY); |
| 2924 | EXFUN (Frun_hook_with_args, MANY); |
| 2925 | EXFUN (Frun_hook_with_args_until_failure, MANY); |
| 2926 | extern void run_hook_with_args_2 (Lisp_Object, Lisp_Object, Lisp_Object); |
| 2927 | extern Lisp_Object run_hook_with_args (ptrdiff_t nargs, Lisp_Object *args, |
| 2928 | Lisp_Object (*funcall) |
| 2929 | (ptrdiff_t nargs, Lisp_Object *args)); |
| 2930 | EXFUN (Fprogn, UNEVALLED); |
| 2931 | EXFUN (Finteractive_p, 0); |
| 2932 | EXFUN (Fthrow, 2) NO_RETURN; |
| 2933 | EXFUN (Fsignal, 2); |
| 2934 | extern void xsignal (Lisp_Object, Lisp_Object) NO_RETURN; |
| 2935 | extern void xsignal0 (Lisp_Object) NO_RETURN; |
| 2936 | extern void xsignal1 (Lisp_Object, Lisp_Object) NO_RETURN; |
| 2937 | extern void xsignal2 (Lisp_Object, Lisp_Object, Lisp_Object) NO_RETURN; |
| 2938 | extern void xsignal3 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object) NO_RETURN; |
| 2939 | extern void signal_error (const char *, Lisp_Object) NO_RETURN; |
| 2940 | EXFUN (Fcommandp, 2); |
| 2941 | EXFUN (Ffunctionp, 1); |
| 2942 | EXFUN (Feval, 2); |
| 2943 | extern Lisp_Object eval_sub (Lisp_Object form); |
| 2944 | EXFUN (Fapply, MANY); |
| 2945 | EXFUN (Ffuncall, MANY); |
| 2946 | extern Lisp_Object apply1 (Lisp_Object, Lisp_Object); |
| 2947 | extern Lisp_Object call0 (Lisp_Object); |
| 2948 | extern Lisp_Object call1 (Lisp_Object, Lisp_Object); |
| 2949 | extern Lisp_Object call2 (Lisp_Object, Lisp_Object, Lisp_Object); |
| 2950 | extern Lisp_Object call3 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); |
| 2951 | extern Lisp_Object call4 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); |
| 2952 | extern Lisp_Object call5 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); |
| 2953 | extern Lisp_Object call6 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); |
| 2954 | extern Lisp_Object call7 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object); |
| 2955 | EXFUN (Fdo_auto_save, 2); |
| 2956 | extern Lisp_Object internal_catch (Lisp_Object, Lisp_Object (*) (Lisp_Object), Lisp_Object); |
| 2957 | extern Lisp_Object internal_lisp_condition_case (Lisp_Object, Lisp_Object, Lisp_Object); |
| 2958 | extern Lisp_Object internal_condition_case (Lisp_Object (*) (void), Lisp_Object, Lisp_Object (*) (Lisp_Object)); |
| 2959 | extern Lisp_Object internal_condition_case_1 (Lisp_Object (*) (Lisp_Object), Lisp_Object, Lisp_Object, Lisp_Object (*) (Lisp_Object)); |
| 2960 | extern Lisp_Object internal_condition_case_2 (Lisp_Object (*) (Lisp_Object, Lisp_Object), Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object (*) (Lisp_Object)); |
| 2961 | extern Lisp_Object internal_condition_case_n (Lisp_Object (*) (ptrdiff_t, Lisp_Object *), ptrdiff_t, Lisp_Object *, Lisp_Object, Lisp_Object (*) (Lisp_Object)); |
| 2962 | extern void specbind (Lisp_Object, Lisp_Object); |
| 2963 | extern void record_unwind_protect (Lisp_Object (*) (Lisp_Object), Lisp_Object); |
| 2964 | extern Lisp_Object unbind_to (int, Lisp_Object); |
| 2965 | extern void error (const char *, ...) NO_RETURN ATTRIBUTE_FORMAT_PRINTF (1, 2); |
| 2966 | extern void verror (const char *, va_list) |
| 2967 | NO_RETURN ATTRIBUTE_FORMAT_PRINTF (1, 0); |
| 2968 | extern void do_autoload (Lisp_Object, Lisp_Object); |
| 2969 | extern Lisp_Object un_autoload (Lisp_Object); |
| 2970 | extern void init_eval_once (void); |
| 2971 | extern Lisp_Object safe_call (ptrdiff_t, Lisp_Object *); |
| 2972 | extern Lisp_Object safe_call1 (Lisp_Object, Lisp_Object); |
| 2973 | extern Lisp_Object safe_call2 (Lisp_Object, Lisp_Object, Lisp_Object); |
| 2974 | extern void init_eval (void); |
| 2975 | #if BYTE_MARK_STACK |
| 2976 | extern void mark_backtrace (void); |
| 2977 | #endif |
| 2978 | extern void syms_of_eval (void); |
| 2979 | |
| 2980 | /* Defined in editfns.c */ |
| 2981 | extern Lisp_Object Qfield; |
| 2982 | EXFUN (Fcurrent_message, 0); |
| 2983 | EXFUN (Fgoto_char, 1); |
| 2984 | EXFUN (Fpoint_max_marker, 0); |
| 2985 | EXFUN (Fpoint, 0); |
| 2986 | EXFUN (Fpoint_marker, 0); |
| 2987 | EXFUN (Fline_beginning_position, 1); |
| 2988 | EXFUN (Fline_end_position, 1); |
| 2989 | EXFUN (Ffollowing_char, 0); |
| 2990 | EXFUN (Fprevious_char, 0); |
| 2991 | EXFUN (Fchar_after, 1); |
| 2992 | EXFUN (Finsert, MANY); |
| 2993 | EXFUN (Finsert_char, 3); |
| 2994 | extern void insert1 (Lisp_Object); |
| 2995 | EXFUN (Feolp, 0); |
| 2996 | EXFUN (Feobp, 0); |
| 2997 | EXFUN (Fbolp, 0); |
| 2998 | EXFUN (Fbobp, 0); |
| 2999 | EXFUN (Fformat, MANY); |
| 3000 | EXFUN (Fmessage, MANY); |
| 3001 | extern Lisp_Object format2 (const char *, Lisp_Object, Lisp_Object); |
| 3002 | EXFUN (Fbuffer_substring, 2); |
| 3003 | EXFUN (Fbuffer_string, 0); |
| 3004 | extern Lisp_Object save_excursion_save (void); |
| 3005 | extern Lisp_Object save_restriction_save (void); |
| 3006 | extern Lisp_Object save_excursion_restore (Lisp_Object); |
| 3007 | extern Lisp_Object save_restriction_restore (Lisp_Object); |
| 3008 | EXFUN (Fchar_to_string, 1); |
| 3009 | EXFUN (Fdelete_region, 2); |
| 3010 | EXFUN (Fnarrow_to_region, 2); |
| 3011 | EXFUN (Fwiden, 0); |
| 3012 | EXFUN (Fuser_login_name, 1); |
| 3013 | EXFUN (Fsystem_name, 0); |
| 3014 | EXFUN (Fcurrent_time, 0); |
| 3015 | EXFUN (Fget_internal_run_time, 0); |
| 3016 | extern EMACS_INT clip_to_bounds (EMACS_INT, EMACS_INT, EMACS_INT); |
| 3017 | extern Lisp_Object make_buffer_string (EMACS_INT, EMACS_INT, int); |
| 3018 | extern Lisp_Object make_buffer_string_both (EMACS_INT, EMACS_INT, EMACS_INT, |
| 3019 | EMACS_INT, int); |
| 3020 | extern void init_editfns (void); |
| 3021 | const char *get_system_name (void); |
| 3022 | extern void syms_of_editfns (void); |
| 3023 | EXFUN (Fconstrain_to_field, 5); |
| 3024 | EXFUN (Ffield_end, 3); |
| 3025 | extern void set_time_zone_rule (const char *); |
| 3026 | |
| 3027 | /* Defined in buffer.c */ |
| 3028 | extern int mouse_face_overlay_overlaps (Lisp_Object); |
| 3029 | extern void nsberror (Lisp_Object) NO_RETURN; |
| 3030 | EXFUN (Fset_buffer_multibyte, 1); |
| 3031 | EXFUN (Foverlay_start, 1); |
| 3032 | EXFUN (Foverlay_end, 1); |
| 3033 | extern void adjust_overlays_for_insert (EMACS_INT, EMACS_INT); |
| 3034 | extern void adjust_overlays_for_delete (EMACS_INT, EMACS_INT); |
| 3035 | extern void fix_start_end_in_overlays (EMACS_INT, EMACS_INT); |
| 3036 | extern void report_overlay_modification (Lisp_Object, Lisp_Object, int, |
| 3037 | Lisp_Object, Lisp_Object, Lisp_Object); |
| 3038 | extern int overlay_touches_p (EMACS_INT); |
| 3039 | extern Lisp_Object Vbuffer_alist; |
| 3040 | EXFUN (Fget_buffer, 1); |
| 3041 | EXFUN (Fget_buffer_create, 1); |
| 3042 | EXFUN (Fgenerate_new_buffer_name, 2); |
| 3043 | EXFUN (Fset_buffer, 1); |
| 3044 | extern Lisp_Object set_buffer_if_live (Lisp_Object); |
| 3045 | EXFUN (Fbarf_if_buffer_read_only, 0); |
| 3046 | EXFUN (Fcurrent_buffer, 0); |
| 3047 | EXFUN (Fother_buffer, 3); |
| 3048 | extern Lisp_Object other_buffer_safely (Lisp_Object); |
| 3049 | EXFUN (Foverlay_get, 2); |
| 3050 | EXFUN (Fbuffer_modified_p, 1); |
| 3051 | EXFUN (Fset_buffer_modified_p, 1); |
| 3052 | EXFUN (Fkill_buffer, 1); |
| 3053 | EXFUN (Fkill_all_local_variables, 0); |
| 3054 | EXFUN (Fbuffer_enable_undo, 1); |
| 3055 | EXFUN (Ferase_buffer, 0); |
| 3056 | extern Lisp_Object Qpriority, Qwindow, Qbefore_string, Qafter_string; |
| 3057 | extern Lisp_Object get_truename_buffer (Lisp_Object); |
| 3058 | extern struct buffer *all_buffers; |
| 3059 | EXFUN (Fprevious_overlay_change, 1); |
| 3060 | EXFUN (Fbuffer_file_name, 1); |
| 3061 | extern void init_buffer_once (void); |
| 3062 | extern void init_buffer (void); |
| 3063 | extern void syms_of_buffer (void); |
| 3064 | extern void keys_of_buffer (void); |
| 3065 | |
| 3066 | /* Defined in marker.c */ |
| 3067 | |
| 3068 | EXFUN (Fmarker_position, 1); |
| 3069 | EXFUN (Fmarker_buffer, 1); |
| 3070 | EXFUN (Fcopy_marker, 2); |
| 3071 | EXFUN (Fset_marker, 3); |
| 3072 | extern EMACS_INT marker_position (Lisp_Object); |
| 3073 | extern EMACS_INT marker_byte_position (Lisp_Object); |
| 3074 | extern void clear_charpos_cache (struct buffer *); |
| 3075 | extern EMACS_INT charpos_to_bytepos (EMACS_INT); |
| 3076 | extern EMACS_INT buf_charpos_to_bytepos (struct buffer *, EMACS_INT); |
| 3077 | extern EMACS_INT buf_bytepos_to_charpos (struct buffer *, EMACS_INT); |
| 3078 | extern void unchain_marker (struct Lisp_Marker *marker); |
| 3079 | extern Lisp_Object set_marker_restricted (Lisp_Object, Lisp_Object, Lisp_Object); |
| 3080 | extern Lisp_Object set_marker_both (Lisp_Object, Lisp_Object, EMACS_INT, EMACS_INT); |
| 3081 | extern Lisp_Object set_marker_restricted_both (Lisp_Object, Lisp_Object, |
| 3082 | EMACS_INT, EMACS_INT); |
| 3083 | extern void syms_of_marker (void); |
| 3084 | |
| 3085 | /* Defined in fileio.c */ |
| 3086 | |
| 3087 | extern Lisp_Object Qfile_error; |
| 3088 | extern Lisp_Object Qfile_exists_p; |
| 3089 | extern Lisp_Object Qfile_directory_p; |
| 3090 | extern Lisp_Object Qinsert_file_contents; |
| 3091 | extern Lisp_Object Qfile_name_history; |
| 3092 | EXFUN (Ffind_file_name_handler, 2); |
| 3093 | EXFUN (Ffile_name_as_directory, 1); |
| 3094 | EXFUN (Fexpand_file_name, 2); |
| 3095 | EXFUN (Ffile_name_nondirectory, 1); |
| 3096 | EXFUN (Fsubstitute_in_file_name, 1); |
| 3097 | EXFUN (Ffile_symlink_p, 1); |
| 3098 | EXFUN (Fverify_visited_file_modtime, 1); |
| 3099 | EXFUN (Ffile_exists_p, 1); |
| 3100 | EXFUN (Ffile_name_absolute_p, 1); |
| 3101 | EXFUN (Fdirectory_file_name, 1); |
| 3102 | EXFUN (Ffile_name_directory, 1); |
| 3103 | extern Lisp_Object expand_and_dir_to_file (Lisp_Object, Lisp_Object); |
| 3104 | EXFUN (Ffile_accessible_directory_p, 1); |
| 3105 | EXFUN (Funhandled_file_name_directory, 1); |
| 3106 | EXFUN (Ffile_directory_p, 1); |
| 3107 | EXFUN (Fwrite_region, 7); |
| 3108 | EXFUN (Ffile_readable_p, 1); |
| 3109 | EXFUN (Fread_file_name, 6); |
| 3110 | extern Lisp_Object close_file_unwind (Lisp_Object); |
| 3111 | extern Lisp_Object restore_point_unwind (Lisp_Object); |
| 3112 | extern void report_file_error (const char *, Lisp_Object) NO_RETURN; |
| 3113 | extern int internal_delete_file (Lisp_Object); |
| 3114 | extern void syms_of_fileio (void); |
| 3115 | extern Lisp_Object make_temp_name (Lisp_Object, int); |
| 3116 | extern Lisp_Object Qdelete_file; |
| 3117 | |
| 3118 | /* Defined in abbrev.c */ |
| 3119 | |
| 3120 | extern void syms_of_abbrev (void); |
| 3121 | |
| 3122 | /* Defined in search.c */ |
| 3123 | extern void shrink_regexp_cache (void); |
| 3124 | EXFUN (Fstring_match, 3); |
| 3125 | extern void restore_search_regs (void); |
| 3126 | EXFUN (Fmatch_data, 3); |
| 3127 | EXFUN (Fset_match_data, 2); |
| 3128 | EXFUN (Fmatch_beginning, 1); |
| 3129 | EXFUN (Fmatch_end, 1); |
| 3130 | extern void record_unwind_save_match_data (void); |
| 3131 | struct re_registers; |
| 3132 | extern struct re_pattern_buffer *compile_pattern (Lisp_Object, |
| 3133 | struct re_registers *, |
| 3134 | Lisp_Object, int, int); |
| 3135 | extern EMACS_INT fast_string_match (Lisp_Object, Lisp_Object); |
| 3136 | extern EMACS_INT fast_c_string_match_ignore_case (Lisp_Object, const char *); |
| 3137 | extern EMACS_INT fast_string_match_ignore_case (Lisp_Object, Lisp_Object); |
| 3138 | extern EMACS_INT fast_looking_at (Lisp_Object, EMACS_INT, EMACS_INT, |
| 3139 | EMACS_INT, EMACS_INT, Lisp_Object); |
| 3140 | extern EMACS_INT scan_buffer (int, EMACS_INT, EMACS_INT, EMACS_INT, |
| 3141 | EMACS_INT *, int); |
| 3142 | extern EMACS_INT scan_newline (EMACS_INT, EMACS_INT, EMACS_INT, EMACS_INT, |
| 3143 | EMACS_INT, int); |
| 3144 | extern EMACS_INT find_next_newline (EMACS_INT, int); |
| 3145 | extern EMACS_INT find_next_newline_no_quit (EMACS_INT, EMACS_INT); |
| 3146 | extern EMACS_INT find_before_next_newline (EMACS_INT, EMACS_INT, EMACS_INT); |
| 3147 | extern void syms_of_search (void); |
| 3148 | extern void clear_regexp_cache (void); |
| 3149 | |
| 3150 | /* Defined in minibuf.c */ |
| 3151 | |
| 3152 | extern Lisp_Object Qcompletion_ignore_case; |
| 3153 | extern Lisp_Object Vminibuffer_list; |
| 3154 | extern Lisp_Object last_minibuf_string; |
| 3155 | EXFUN (Fcompleting_read, 8); |
| 3156 | EXFUN (Fread_from_minibuffer, 7); |
| 3157 | EXFUN (Fread_variable, 2); |
| 3158 | EXFUN (Fread_buffer, 3); |
| 3159 | EXFUN (Fread_minibuffer, 2); |
| 3160 | EXFUN (Feval_minibuffer, 2); |
| 3161 | EXFUN (Fread_string, 5); |
| 3162 | EXFUN (Fassoc_string, 3); |
| 3163 | extern Lisp_Object get_minibuffer (int); |
| 3164 | extern void init_minibuf_once (void); |
| 3165 | extern void syms_of_minibuf (void); |
| 3166 | |
| 3167 | /* Defined in callint.c */ |
| 3168 | |
| 3169 | extern Lisp_Object Qminus, Qplus; |
| 3170 | extern Lisp_Object Qwhen; |
| 3171 | extern Lisp_Object Qcall_interactively, Qmouse_leave_buffer_hook; |
| 3172 | EXFUN (Fprefix_numeric_value, 1); |
| 3173 | extern void syms_of_callint (void); |
| 3174 | |
| 3175 | /* Defined in casefiddle.c */ |
| 3176 | |
| 3177 | extern Lisp_Object Qidentity; |
| 3178 | EXFUN (Fdowncase, 1); |
| 3179 | EXFUN (Fupcase, 1); |
| 3180 | EXFUN (Fupcase_region, 2); |
| 3181 | EXFUN (Fupcase_initials, 1); |
| 3182 | EXFUN (Fupcase_initials_region, 2); |
| 3183 | extern void syms_of_casefiddle (void); |
| 3184 | extern void keys_of_casefiddle (void); |
| 3185 | |
| 3186 | /* Defined in casetab.c */ |
| 3187 | |
| 3188 | EXFUN (Fset_case_table, 1); |
| 3189 | EXFUN (Fset_standard_case_table, 1); |
| 3190 | extern void init_casetab_once (void); |
| 3191 | extern void syms_of_casetab (void); |
| 3192 | |
| 3193 | /* Defined in keyboard.c */ |
| 3194 | |
| 3195 | extern Lisp_Object echo_message_buffer; |
| 3196 | extern struct kboard *echo_kboard; |
| 3197 | extern void cancel_echoing (void); |
| 3198 | extern Lisp_Object Qdisabled, QCfilter; |
| 3199 | extern Lisp_Object Qup, Qdown, Qbottom; |
| 3200 | extern Lisp_Object Qtop; |
| 3201 | extern int input_pending; |
| 3202 | EXFUN (Fdiscard_input, 0); |
| 3203 | EXFUN (Frecursive_edit, 0); |
| 3204 | EXFUN (Ftop_level, 0) NO_RETURN; |
| 3205 | extern Lisp_Object menu_bar_items (Lisp_Object); |
| 3206 | extern Lisp_Object tool_bar_items (Lisp_Object, int *); |
| 3207 | extern void discard_mouse_events (void); |
| 3208 | EXFUN (Fevent_convert_list, 1); |
| 3209 | EXFUN (Fread_key_sequence, 5); |
| 3210 | EXFUN (Fset_input_interrupt_mode, 1); |
| 3211 | EXFUN (Fset_input_mode, 4); |
| 3212 | extern Lisp_Object pending_funcalls; |
| 3213 | extern int detect_input_pending (void); |
| 3214 | extern int detect_input_pending_ignore_squeezables (void); |
| 3215 | extern int detect_input_pending_run_timers (int); |
| 3216 | extern void safe_run_hooks (Lisp_Object); |
| 3217 | extern void cmd_error_internal (Lisp_Object, const char *); |
| 3218 | extern Lisp_Object command_loop_1 (void); |
| 3219 | extern Lisp_Object recursive_edit_1 (void); |
| 3220 | extern void record_auto_save (void); |
| 3221 | #ifdef SIGDANGER |
| 3222 | extern void force_auto_save_soon (void); |
| 3223 | #endif |
| 3224 | extern void init_keyboard (void); |
| 3225 | extern void syms_of_keyboard (void); |
| 3226 | extern void keys_of_keyboard (void); |
| 3227 | extern char *push_key_description (unsigned int, char *, int); |
| 3228 | |
| 3229 | |
| 3230 | /* Defined in indent.c */ |
| 3231 | EXFUN (Fvertical_motion, 2); |
| 3232 | EXFUN (Findent_to, 2); |
| 3233 | EXFUN (Fmove_to_column, 2); |
| 3234 | extern EMACS_INT current_column (void); |
| 3235 | extern void invalidate_current_column (void); |
| 3236 | extern int indented_beyond_p (EMACS_INT, EMACS_INT, EMACS_INT); |
| 3237 | extern void syms_of_indent (void); |
| 3238 | |
| 3239 | /* Defined in frame.c */ |
| 3240 | #ifdef HAVE_WINDOW_SYSTEM |
| 3241 | #endif /* HAVE_WINDOW_SYSTEM */ |
| 3242 | extern Lisp_Object Qonly; |
| 3243 | extern Lisp_Object Qvisible; |
| 3244 | extern void store_frame_param (struct frame *, Lisp_Object, Lisp_Object); |
| 3245 | extern void store_in_alist (Lisp_Object *, Lisp_Object, Lisp_Object); |
| 3246 | extern Lisp_Object do_switch_frame (Lisp_Object, int, int, Lisp_Object); |
| 3247 | #if HAVE_NS |
| 3248 | extern Lisp_Object get_frame_param (struct frame *, Lisp_Object); |
| 3249 | #endif |
| 3250 | extern Lisp_Object frame_buffer_predicate (Lisp_Object); |
| 3251 | EXFUN (Fselect_frame, 2); |
| 3252 | EXFUN (Fselected_frame, 0); |
| 3253 | EXFUN (Fmake_frame_visible, 1); |
| 3254 | EXFUN (Ficonify_frame, 1); |
| 3255 | EXFUN (Fframe_parameter, 2); |
| 3256 | EXFUN (Fmodify_frame_parameters, 2); |
| 3257 | EXFUN (Fraise_frame, 1); |
| 3258 | EXFUN (Fredirect_frame_focus, 2); |
| 3259 | extern void frames_discard_buffer (Lisp_Object); |
| 3260 | extern void syms_of_frame (void); |
| 3261 | |
| 3262 | /* Defined in emacs.c */ |
| 3263 | extern char **initial_argv; |
| 3264 | extern int initial_argc; |
| 3265 | #if defined(HAVE_X_WINDOWS) || defined(HAVE_NS) |
| 3266 | extern int display_arg; |
| 3267 | #endif |
| 3268 | extern Lisp_Object decode_env_path (const char *, const char *); |
| 3269 | extern Lisp_Object empty_unibyte_string, empty_multibyte_string; |
| 3270 | extern Lisp_Object Qfile_name_handler_alist; |
| 3271 | #ifdef FLOAT_CATCH_SIGILL |
| 3272 | extern void fatal_error_signal (int); |
| 3273 | #endif |
| 3274 | EXFUN (Fkill_emacs, 1) NO_RETURN; |
| 3275 | #if HAVE_SETLOCALE |
| 3276 | void fixup_locale (void); |
| 3277 | void synchronize_system_messages_locale (void); |
| 3278 | void synchronize_system_time_locale (void); |
| 3279 | #else |
| 3280 | #define setlocale(category, locale) |
| 3281 | #define fixup_locale() |
| 3282 | #define synchronize_system_messages_locale() |
| 3283 | #define synchronize_system_time_locale() |
| 3284 | #endif |
| 3285 | void shut_down_emacs (int, int, Lisp_Object); |
| 3286 | /* Nonzero means don't do interactive redisplay and don't change tty modes. */ |
| 3287 | extern int noninteractive; |
| 3288 | |
| 3289 | /* Nonzero means remove site-lisp directories from load-path. */ |
| 3290 | extern int no_site_lisp; |
| 3291 | |
| 3292 | /* Pipe used to send exit notification to the daemon parent at |
| 3293 | startup. */ |
| 3294 | extern int daemon_pipe[2]; |
| 3295 | #define IS_DAEMON (daemon_pipe[1] != 0) |
| 3296 | |
| 3297 | /* Nonzero means don't do use window-system-specific display code. */ |
| 3298 | extern int inhibit_window_system; |
| 3299 | /* Nonzero means that a filter or a sentinel is running. */ |
| 3300 | extern int running_asynch_code; |
| 3301 | |
| 3302 | /* Defined in process.c. */ |
| 3303 | extern Lisp_Object QCtype, Qlocal; |
| 3304 | EXFUN (Fget_buffer_process, 1); |
| 3305 | EXFUN (Fprocess_status, 1); |
| 3306 | EXFUN (Fkill_process, 2); |
| 3307 | EXFUN (Fwaiting_for_user_input_p, 0); |
| 3308 | extern Lisp_Object Qprocessp; |
| 3309 | extern void kill_buffer_processes (Lisp_Object); |
| 3310 | extern int wait_reading_process_output (int, int, int, int, |
| 3311 | Lisp_Object, |
| 3312 | struct Lisp_Process *, |
| 3313 | int); |
| 3314 | extern void add_keyboard_wait_descriptor (int); |
| 3315 | extern void delete_keyboard_wait_descriptor (int); |
| 3316 | #ifdef HAVE_GPM |
| 3317 | extern void add_gpm_wait_descriptor (int); |
| 3318 | extern void delete_gpm_wait_descriptor (int); |
| 3319 | #endif |
| 3320 | extern void close_process_descs (void); |
| 3321 | extern void init_process (void); |
| 3322 | extern void syms_of_process (void); |
| 3323 | extern void setup_process_coding_systems (Lisp_Object); |
| 3324 | |
| 3325 | EXFUN (Fcall_process, MANY); |
| 3326 | extern int child_setup (int, int, int, char **, int, Lisp_Object) |
| 3327 | #ifndef DOS_NT |
| 3328 | NO_RETURN |
| 3329 | #endif |
| 3330 | ; |
| 3331 | extern void init_callproc_1 (void); |
| 3332 | extern void init_callproc (void); |
| 3333 | extern void set_initial_environment (void); |
| 3334 | extern void syms_of_callproc (void); |
| 3335 | |
| 3336 | /* Defined in doc.c */ |
| 3337 | extern Lisp_Object Qfunction_documentation; |
| 3338 | EXFUN (Fsubstitute_command_keys, 1); |
| 3339 | extern Lisp_Object read_doc_string (Lisp_Object); |
| 3340 | extern Lisp_Object get_doc_string (Lisp_Object, int, int); |
| 3341 | extern void syms_of_doc (void); |
| 3342 | extern int read_bytecode_char (int); |
| 3343 | |
| 3344 | /* Defined in bytecode.c */ |
| 3345 | extern Lisp_Object Qbytecode; |
| 3346 | extern void syms_of_bytecode (void); |
| 3347 | extern struct byte_stack *byte_stack_list; |
| 3348 | #if BYTE_MARK_STACK |
| 3349 | extern void mark_byte_stack (void); |
| 3350 | #endif |
| 3351 | extern void unmark_byte_stack (void); |
| 3352 | extern Lisp_Object exec_byte_code (Lisp_Object, Lisp_Object, Lisp_Object, |
| 3353 | Lisp_Object, ptrdiff_t, Lisp_Object *); |
| 3354 | |
| 3355 | /* Defined in macros.c */ |
| 3356 | extern Lisp_Object Qexecute_kbd_macro; |
| 3357 | EXFUN (Fexecute_kbd_macro, 3); |
| 3358 | EXFUN (Fcancel_kbd_macro_events, 0); |
| 3359 | extern void init_macros (void); |
| 3360 | extern void syms_of_macros (void); |
| 3361 | |
| 3362 | /* Defined in undo.c */ |
| 3363 | extern Lisp_Object Qapply; |
| 3364 | extern Lisp_Object Qinhibit_read_only; |
| 3365 | EXFUN (Fundo_boundary, 0); |
| 3366 | extern void truncate_undo_list (struct buffer *); |
| 3367 | extern void record_marker_adjustment (Lisp_Object, EMACS_INT); |
| 3368 | extern void record_insert (EMACS_INT, EMACS_INT); |
| 3369 | extern void record_delete (EMACS_INT, Lisp_Object); |
| 3370 | extern void record_first_change (void); |
| 3371 | extern void record_change (EMACS_INT, EMACS_INT); |
| 3372 | extern void record_property_change (EMACS_INT, EMACS_INT, |
| 3373 | Lisp_Object, Lisp_Object, |
| 3374 | Lisp_Object); |
| 3375 | extern void syms_of_undo (void); |
| 3376 | /* Defined in textprop.c */ |
| 3377 | extern Lisp_Object Qfont, Qmouse_face; |
| 3378 | extern Lisp_Object Qinsert_in_front_hooks, Qinsert_behind_hooks; |
| 3379 | extern Lisp_Object Qfront_sticky, Qrear_nonsticky; |
| 3380 | extern Lisp_Object Qminibuffer_prompt; |
| 3381 | |
| 3382 | EXFUN (Fnext_single_property_change, 4); |
| 3383 | EXFUN (Fnext_single_char_property_change, 4); |
| 3384 | EXFUN (Fprevious_single_property_change, 4); |
| 3385 | EXFUN (Fget_text_property, 3); |
| 3386 | EXFUN (Fput_text_property, 5); |
| 3387 | EXFUN (Fprevious_char_property_change, 2); |
| 3388 | EXFUN (Fnext_char_property_change, 2); |
| 3389 | extern void report_interval_modification (Lisp_Object, Lisp_Object); |
| 3390 | |
| 3391 | /* Defined in menu.c */ |
| 3392 | extern void syms_of_menu (void); |
| 3393 | |
| 3394 | /* Defined in xmenu.c */ |
| 3395 | EXFUN (Fx_popup_menu, 2); |
| 3396 | EXFUN (Fx_popup_dialog, 3); |
| 3397 | extern void syms_of_xmenu (void); |
| 3398 | |
| 3399 | /* Defined in termchar.h */ |
| 3400 | struct tty_display_info; |
| 3401 | |
| 3402 | /* Defined in termhooks.h */ |
| 3403 | struct terminal; |
| 3404 | |
| 3405 | /* Defined in sysdep.c */ |
| 3406 | #ifndef HAVE_GET_CURRENT_DIR_NAME |
| 3407 | extern char *get_current_dir_name (void); |
| 3408 | #endif |
| 3409 | extern void stuff_char (char c); |
| 3410 | extern void init_sigio (int); |
| 3411 | extern void sys_subshell (void); |
| 3412 | extern void sys_suspend (void); |
| 3413 | extern void discard_tty_input (void); |
| 3414 | extern void init_sys_modes (struct tty_display_info *); |
| 3415 | extern void reset_sys_modes (struct tty_display_info *); |
| 3416 | extern void init_all_sys_modes (void); |
| 3417 | extern void reset_all_sys_modes (void); |
| 3418 | extern void wait_for_termination (int); |
| 3419 | extern void interruptible_wait_for_termination (int); |
| 3420 | extern void flush_pending_output (int); |
| 3421 | extern void child_setup_tty (int); |
| 3422 | extern void setup_pty (int); |
| 3423 | extern int set_window_size (int, int, int); |
| 3424 | extern EMACS_INT get_random (void); |
| 3425 | extern void seed_random (long); |
| 3426 | extern int emacs_open (const char *, int, int); |
| 3427 | extern int emacs_close (int); |
| 3428 | extern EMACS_INT emacs_read (int, char *, EMACS_INT); |
| 3429 | extern EMACS_INT emacs_write (int, const char *, EMACS_INT); |
| 3430 | enum { READLINK_BUFSIZE = 1024 }; |
| 3431 | extern char *emacs_readlink (const char *, char [READLINK_BUFSIZE]); |
| 3432 | #ifndef HAVE_MEMSET |
| 3433 | extern void *memset (void *, int, size_t); |
| 3434 | #endif |
| 3435 | #ifndef HAVE_MEMCPY |
| 3436 | extern void *memcpy (void *, void *, size_t); |
| 3437 | #endif |
| 3438 | #ifndef HAVE_MEMMOVE |
| 3439 | extern void *memmove (void *, void *, size_t); |
| 3440 | #endif |
| 3441 | #ifndef HAVE_MEMCMP |
| 3442 | extern int memcmp (void *, void *, size_t); |
| 3443 | #endif |
| 3444 | |
| 3445 | EXFUN (Funlock_buffer, 0); |
| 3446 | extern void unlock_all_files (void); |
| 3447 | extern void lock_file (Lisp_Object); |
| 3448 | extern void unlock_file (Lisp_Object); |
| 3449 | extern void unlock_buffer (struct buffer *); |
| 3450 | extern void syms_of_filelock (void); |
| 3451 | extern void init_filelock (void); |
| 3452 | |
| 3453 | /* Defined in sound.c */ |
| 3454 | extern void syms_of_sound (void); |
| 3455 | extern void init_sound (void); |
| 3456 | |
| 3457 | /* Defined in category.c */ |
| 3458 | extern void init_category_once (void); |
| 3459 | extern Lisp_Object char_category_set (int); |
| 3460 | extern void syms_of_category (void); |
| 3461 | |
| 3462 | /* Defined in ccl.c */ |
| 3463 | extern void syms_of_ccl (void); |
| 3464 | |
| 3465 | /* Defined in dired.c */ |
| 3466 | extern void syms_of_dired (void); |
| 3467 | extern Lisp_Object directory_files_internal (Lisp_Object, Lisp_Object, |
| 3468 | Lisp_Object, Lisp_Object, |
| 3469 | int, Lisp_Object); |
| 3470 | |
| 3471 | /* Defined in term.c */ |
| 3472 | extern int *char_ins_del_vector; |
| 3473 | extern void mark_ttys (void); |
| 3474 | extern void syms_of_term (void); |
| 3475 | extern void fatal (const char *msgid, ...) |
| 3476 | NO_RETURN ATTRIBUTE_FORMAT_PRINTF (1, 2); |
| 3477 | |
| 3478 | /* Defined in terminal.c */ |
| 3479 | EXFUN (Fframe_terminal, 1); |
| 3480 | EXFUN (Fdelete_terminal, 2); |
| 3481 | extern void syms_of_terminal (void); |
| 3482 | |
| 3483 | /* Defined in font.c */ |
| 3484 | extern void syms_of_font (void); |
| 3485 | extern void init_font (void); |
| 3486 | |
| 3487 | #ifdef HAVE_WINDOW_SYSTEM |
| 3488 | /* Defined in fontset.c */ |
| 3489 | extern void syms_of_fontset (void); |
| 3490 | |
| 3491 | /* Defined in xfns.c, w32fns.c, or macfns.c */ |
| 3492 | extern Lisp_Object Qfont_param; |
| 3493 | EXFUN (Fxw_display_color_p, 1); |
| 3494 | EXFUN (Fx_focus_frame, 1); |
| 3495 | #endif |
| 3496 | |
| 3497 | /* Defined in xfaces.c */ |
| 3498 | extern Lisp_Object Qdefault, Qtool_bar, Qfringe; |
| 3499 | extern Lisp_Object Qheader_line, Qscroll_bar, Qcursor; |
| 3500 | extern Lisp_Object Qmode_line_inactive; |
| 3501 | extern Lisp_Object Qface; |
| 3502 | extern Lisp_Object Qnormal; |
| 3503 | extern Lisp_Object QCfamily, QCweight, QCslant; |
| 3504 | extern Lisp_Object QCheight, QCname, QCwidth, QCforeground, QCbackground; |
| 3505 | extern Lisp_Object Vface_alternative_font_family_alist; |
| 3506 | extern Lisp_Object Vface_alternative_font_registry_alist; |
| 3507 | EXFUN (Fclear_face_cache, 1); |
| 3508 | EXFUN (Fx_load_color_file, 1); |
| 3509 | extern void syms_of_xfaces (void); |
| 3510 | |
| 3511 | #ifdef HAVE_X_WINDOWS |
| 3512 | /* Defined in xfns.c */ |
| 3513 | extern void syms_of_xfns (void); |
| 3514 | |
| 3515 | /* Defined in xsmfns.c */ |
| 3516 | extern void syms_of_xsmfns (void); |
| 3517 | |
| 3518 | /* Defined in xselect.c */ |
| 3519 | extern void syms_of_xselect (void); |
| 3520 | |
| 3521 | /* Defined in xterm.c */ |
| 3522 | extern void syms_of_xterm (void); |
| 3523 | #endif /* HAVE_X_WINDOWS */ |
| 3524 | |
| 3525 | #ifdef HAVE_WINDOW_SYSTEM |
| 3526 | /* Defined in xterm.c, nsterm.m, w32term.c */ |
| 3527 | extern char *x_get_keysym_name (int); |
| 3528 | #endif /* HAVE_WINDOW_SYSTEM */ |
| 3529 | |
| 3530 | #ifdef MSDOS |
| 3531 | /* Defined in msdos.c */ |
| 3532 | EXFUN (Fmsdos_downcase_filename, 1); |
| 3533 | #endif |
| 3534 | |
| 3535 | #ifdef HAVE_LIBXML2 |
| 3536 | /* Defined in xml.c */ |
| 3537 | extern void syms_of_xml (void); |
| 3538 | #endif |
| 3539 | |
| 3540 | #ifdef HAVE_MENUS |
| 3541 | /* Defined in (x|w32)fns.c, nsfns.m... */ |
| 3542 | extern int have_menus_p (void); |
| 3543 | #endif |
| 3544 | |
| 3545 | #ifdef HAVE_DBUS |
| 3546 | /* Defined in dbusbind.c */ |
| 3547 | void syms_of_dbusbind (void); |
| 3548 | #endif |
| 3549 | |
| 3550 | #ifdef DOS_NT |
| 3551 | /* Defined in msdos.c, w32.c */ |
| 3552 | extern char *emacs_root_dir (void); |
| 3553 | #endif /* DOS_NT */ |
| 3554 | \f |
| 3555 | /* Nonzero means Emacs has already been initialized. |
| 3556 | Used during startup to detect startup of dumped Emacs. */ |
| 3557 | extern int initialized; |
| 3558 | |
| 3559 | extern int immediate_quit; /* Nonzero means ^G can quit instantly */ |
| 3560 | |
| 3561 | extern POINTER_TYPE *xmalloc (size_t); |
| 3562 | extern POINTER_TYPE *xrealloc (POINTER_TYPE *, size_t); |
| 3563 | extern void xfree (POINTER_TYPE *); |
| 3564 | |
| 3565 | extern char *xstrdup (const char *); |
| 3566 | |
| 3567 | extern char *egetenv (const char *); |
| 3568 | |
| 3569 | /* Set up the name of the machine we're running on. */ |
| 3570 | extern void init_system_name (void); |
| 3571 | |
| 3572 | /* Some systems (e.g., NT) use a different path separator than Unix, |
| 3573 | in addition to a device separator. Set the path separator |
| 3574 | to '/', and don't test for a device separator in IS_ANY_SEP. */ |
| 3575 | |
| 3576 | #define DIRECTORY_SEP '/' |
| 3577 | #ifndef IS_DIRECTORY_SEP |
| 3578 | #define IS_DIRECTORY_SEP(_c_) ((_c_) == DIRECTORY_SEP) |
| 3579 | #endif |
| 3580 | #ifndef IS_DEVICE_SEP |
| 3581 | #ifndef DEVICE_SEP |
| 3582 | #define IS_DEVICE_SEP(_c_) 0 |
| 3583 | #else |
| 3584 | #define IS_DEVICE_SEP(_c_) ((_c_) == DEVICE_SEP) |
| 3585 | #endif |
| 3586 | #endif |
| 3587 | #ifndef IS_ANY_SEP |
| 3588 | #define IS_ANY_SEP(_c_) (IS_DIRECTORY_SEP (_c_)) |
| 3589 | #endif |
| 3590 | |
| 3591 | #define SWITCH_ENUM_CAST(x) (x) |
| 3592 | |
| 3593 | /* Loop over Lisp list LIST. Signal an error if LIST is not a proper |
| 3594 | list, or if it contains circles. |
| 3595 | |
| 3596 | HARE and TORTOISE should be the names of Lisp_Object variables, and |
| 3597 | N should be the name of an EMACS_INT variable declared in the |
| 3598 | function where the macro is used. Each nested loop should use |
| 3599 | its own variables. |
| 3600 | |
| 3601 | In the loop body, HARE is set to each cons of LIST, and N is the |
| 3602 | length of the list processed so far. */ |
| 3603 | |
| 3604 | #define LIST_END_P(list, obj) \ |
| 3605 | (NILP (obj) \ |
| 3606 | ? 1 \ |
| 3607 | : (CONSP (obj) \ |
| 3608 | ? 0 \ |
| 3609 | : (wrong_type_argument (Qlistp, (list))), 1)) |
| 3610 | |
| 3611 | /* Use this to suppress gcc's warnings. */ |
| 3612 | #ifdef lint |
| 3613 | |
| 3614 | /* Use CODE only if lint checking is in effect. */ |
| 3615 | # define IF_LINT(Code) Code |
| 3616 | |
| 3617 | /* Assume that the expression COND is true. This differs in intent |
| 3618 | from 'assert', as it is a message from the programmer to the compiler. */ |
| 3619 | # define lint_assume(cond) ((cond) ? (void) 0 : abort ()) |
| 3620 | |
| 3621 | #else |
| 3622 | # define IF_LINT(Code) /* empty */ |
| 3623 | # define lint_assume(cond) ((void) (0 && (cond))) |
| 3624 | #endif |
| 3625 | |
| 3626 | /* The ubiquitous min and max macros. */ |
| 3627 | |
| 3628 | #ifdef max |
| 3629 | #undef max |
| 3630 | #undef min |
| 3631 | #endif |
| 3632 | #define min(a, b) ((a) < (b) ? (a) : (b)) |
| 3633 | #define max(a, b) ((a) > (b) ? (a) : (b)) |
| 3634 | |
| 3635 | /* We used to use `abs', but that clashes with system headers on some |
| 3636 | platforms, and using a name reserved by Standard C is a bad idea |
| 3637 | anyway. */ |
| 3638 | #if !defined(eabs) |
| 3639 | #define eabs(x) ((x) < 0 ? -(x) : (x)) |
| 3640 | #endif |
| 3641 | |
| 3642 | /* Return a fixnum or float, depending on whether VAL fits in a Lisp |
| 3643 | fixnum. */ |
| 3644 | |
| 3645 | #define make_fixnum_or_float(val) \ |
| 3646 | (FIXNUM_OVERFLOW_P (val) \ |
| 3647 | ? make_float (val) \ |
| 3648 | : make_number ((EMACS_INT)(val))) |
| 3649 | |
| 3650 | |
| 3651 | /* Checks the `cycle check' variable CHECK to see if it indicates that |
| 3652 | EL is part of a cycle; CHECK must be either Qnil or a value returned |
| 3653 | by an earlier use of CYCLE_CHECK. SUSPICIOUS is the number of |
| 3654 | elements after which a cycle might be suspected; after that many |
| 3655 | elements, this macro begins consing in order to keep more precise |
| 3656 | track of elements. |
| 3657 | |
| 3658 | Returns nil if a cycle was detected, otherwise a new value for CHECK |
| 3659 | that includes EL. |
| 3660 | |
| 3661 | CHECK is evaluated multiple times, EL and SUSPICIOUS 0 or 1 times, so |
| 3662 | the caller should make sure that's ok. */ |
| 3663 | |
| 3664 | #define CYCLE_CHECK(check, el, suspicious) \ |
| 3665 | (NILP (check) \ |
| 3666 | ? make_number (0) \ |
| 3667 | : (INTEGERP (check) \ |
| 3668 | ? (XFASTINT (check) < (suspicious) \ |
| 3669 | ? make_number (XFASTINT (check) + 1) \ |
| 3670 | : Fcons (el, Qnil)) \ |
| 3671 | : (!NILP (Fmemq ((el), (check))) \ |
| 3672 | ? Qnil \ |
| 3673 | : Fcons ((el), (check))))) |
| 3674 | |
| 3675 | |
| 3676 | /* SAFE_ALLOCA normally allocates memory on the stack, but if size is |
| 3677 | larger than MAX_ALLOCA, use xmalloc to avoid overflowing the stack. */ |
| 3678 | |
| 3679 | #define MAX_ALLOCA 16*1024 |
| 3680 | |
| 3681 | extern Lisp_Object safe_alloca_unwind (Lisp_Object); |
| 3682 | |
| 3683 | #define USE_SAFE_ALLOCA \ |
| 3684 | int sa_count = (int) SPECPDL_INDEX (), sa_must_free = 0 |
| 3685 | |
| 3686 | /* SAFE_ALLOCA allocates a simple buffer. */ |
| 3687 | |
| 3688 | #define SAFE_ALLOCA(buf, type, size) \ |
| 3689 | do { \ |
| 3690 | if ((size) < MAX_ALLOCA) \ |
| 3691 | buf = (type) alloca (size); \ |
| 3692 | else \ |
| 3693 | { \ |
| 3694 | buf = (type) xmalloc (size); \ |
| 3695 | sa_must_free = 1; \ |
| 3696 | record_unwind_protect (safe_alloca_unwind, \ |
| 3697 | make_save_value (buf, 0)); \ |
| 3698 | } \ |
| 3699 | } while (0) |
| 3700 | |
| 3701 | /* SAFE_FREE frees xmalloced memory and enables GC as needed. */ |
| 3702 | |
| 3703 | #define SAFE_FREE() \ |
| 3704 | do { \ |
| 3705 | if (sa_must_free) { \ |
| 3706 | sa_must_free = 0; \ |
| 3707 | unbind_to (sa_count, Qnil); \ |
| 3708 | } \ |
| 3709 | } while (0) |
| 3710 | |
| 3711 | |
| 3712 | /* SAFE_ALLOCA_LISP allocates an array of Lisp_Objects. */ |
| 3713 | |
| 3714 | #define SAFE_ALLOCA_LISP(buf, nelt) \ |
| 3715 | do { \ |
| 3716 | if ((nelt) < MAX_ALLOCA / sizeof (Lisp_Object)) \ |
| 3717 | buf = (Lisp_Object *) alloca ((nelt) * sizeof (Lisp_Object)); \ |
| 3718 | else if ((nelt) < min (PTRDIFF_MAX, SIZE_MAX) / sizeof (Lisp_Object)) \ |
| 3719 | { \ |
| 3720 | Lisp_Object arg_; \ |
| 3721 | buf = (Lisp_Object *) xmalloc ((nelt) * sizeof (Lisp_Object)); \ |
| 3722 | arg_ = make_save_value (buf, nelt); \ |
| 3723 | XSAVE_VALUE (arg_)->dogc = 1; \ |
| 3724 | sa_must_free = 1; \ |
| 3725 | record_unwind_protect (safe_alloca_unwind, arg_); \ |
| 3726 | } \ |
| 3727 | else \ |
| 3728 | memory_full (SIZE_MAX); \ |
| 3729 | } while (0) |
| 3730 | |
| 3731 | |
| 3732 | #include "globals.h" |
| 3733 | |
| 3734 | #endif /* EMACS_LISP_H */ |