1 /* Fundamental definitions for GNU Emacs Lisp interpreter.
3 Copyright (C) 1985-1987, 1993-1995, 1997-2015 Free Software Foundation,
6 This file is part of GNU Emacs.
8 GNU Emacs is free software: you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation, either version 3 of the License, or
11 (at your option) any later version.
13 GNU Emacs is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
37 /* Define a TYPE constant ID as an externally visible name. Use like this:
39 DEFINE_GDB_SYMBOL_BEGIN (TYPE, ID)
40 # define ID (some integer preprocessor expression of type TYPE)
41 DEFINE_GDB_SYMBOL_END (ID)
43 This hack is for the benefit of compilers that do not make macro
44 definitions or enums visible to the debugger. It's used for symbols
45 that .gdbinit needs. */
47 #define DECLARE_GDB_SYM(type, id) type const id EXTERNALLY_VISIBLE
49 # define DEFINE_GDB_SYMBOL_BEGIN(type, id) DECLARE_GDB_SYM (type, id)
50 # define DEFINE_GDB_SYMBOL_END(id) = id;
52 # define DEFINE_GDB_SYMBOL_BEGIN(type, id) extern DECLARE_GDB_SYM (type, id)
53 # define DEFINE_GDB_SYMBOL_END(val) ;
56 /* The ubiquitous max and min macros. */
59 #define max(a, b) ((a) > (b) ? (a) : (b))
60 #define min(a, b) ((a) < (b) ? (a) : (b))
62 /* Number of elements in an array. */
63 #define ARRAYELTS(arr) (sizeof (arr) / sizeof (arr)[0])
65 /* Number of bits in a Lisp_Object tag. */
66 DEFINE_GDB_SYMBOL_BEGIN (int, GCTYPEBITS
)
68 DEFINE_GDB_SYMBOL_END (GCTYPEBITS
)
70 /* The number of bits needed in an EMACS_INT over and above the number
71 of bits in a pointer. This is 0 on systems where:
72 1. We can specify multiple-of-8 alignment on static variables.
73 2. We know malloc returns a multiple of 8. */
74 #if (defined alignas \
75 && (defined GNU_MALLOC || defined DOUG_LEA_MALLOC || defined __GLIBC__ \
76 || defined DARWIN_OS || defined __sun || defined __MINGW32__ \
78 # define NONPOINTER_BITS 0
80 # define NONPOINTER_BITS GCTYPEBITS
83 /* EMACS_INT - signed integer wide enough to hold an Emacs value
84 EMACS_INT_MAX - maximum value of EMACS_INT; can be used in #if
85 pI - printf length modifier for EMACS_INT
86 EMACS_UINT - unsigned variant of EMACS_INT */
89 # error "INTPTR_MAX misconfigured"
90 # elif INTPTR_MAX <= INT_MAX >> NONPOINTER_BITS && !defined WIDE_EMACS_INT
91 typedef int EMACS_INT
;
92 typedef unsigned int EMACS_UINT
;
93 # define EMACS_INT_MAX INT_MAX
95 # elif INTPTR_MAX <= LONG_MAX >> NONPOINTER_BITS && !defined WIDE_EMACS_INT
96 typedef long int EMACS_INT
;
97 typedef unsigned long EMACS_UINT
;
98 # define EMACS_INT_MAX LONG_MAX
100 /* Check versus LLONG_MAX, not LLONG_MAX >> NONPOINTER_BITS.
101 In theory this is not safe, but in practice it seems to be OK. */
102 # elif INTPTR_MAX <= LLONG_MAX
103 typedef long long int EMACS_INT
;
104 typedef unsigned long long int EMACS_UINT
;
105 # define EMACS_INT_MAX LLONG_MAX
108 # error "INTPTR_MAX too large"
112 /* Number of bits to put in each character in the internal representation
113 of bool vectors. This should not vary across implementations. */
114 enum { BOOL_VECTOR_BITS_PER_CHAR
=
115 #define BOOL_VECTOR_BITS_PER_CHAR 8
116 BOOL_VECTOR_BITS_PER_CHAR
119 /* An unsigned integer type representing a fixed-length bit sequence,
120 suitable for bool vector words, GC mark bits, etc. Normally it is size_t
121 for speed, but it is unsigned char on weird platforms. */
122 #if BOOL_VECTOR_BITS_PER_CHAR == CHAR_BIT
123 typedef size_t bits_word
;
124 # define BITS_WORD_MAX SIZE_MAX
125 enum { BITS_PER_BITS_WORD
= CHAR_BIT
* sizeof (bits_word
) };
127 typedef unsigned char bits_word
;
128 # define BITS_WORD_MAX ((1u << BOOL_VECTOR_BITS_PER_CHAR) - 1)
129 enum { BITS_PER_BITS_WORD
= BOOL_VECTOR_BITS_PER_CHAR
};
131 verify (BITS_WORD_MAX
>> (BITS_PER_BITS_WORD
- 1) == 1);
133 /* Number of bits in some machine integer types. */
136 BITS_PER_CHAR
= CHAR_BIT
,
137 BITS_PER_SHORT
= CHAR_BIT
* sizeof (short),
138 BITS_PER_LONG
= CHAR_BIT
* sizeof (long int),
139 BITS_PER_EMACS_INT
= CHAR_BIT
* sizeof (EMACS_INT
)
142 /* printmax_t and uprintmax_t are types for printing large integers.
143 These are the widest integers that are supported for printing.
144 pMd etc. are conversions for printing them.
145 On C99 hosts, there's no problem, as even the widest integers work.
146 Fall back on EMACS_INT on pre-C99 hosts. */
148 typedef intmax_t printmax_t
;
149 typedef uintmax_t uprintmax_t
;
153 typedef EMACS_INT printmax_t
;
154 typedef EMACS_UINT uprintmax_t
;
159 /* Use pD to format ptrdiff_t values, which suffice for indexes into
160 buffers and strings. Emacs never allocates objects larger than
161 PTRDIFF_MAX bytes, as they cause problems with pointer subtraction.
162 In C99, pD can always be "t"; configure it here for the sake of
163 pre-C99 libraries such as glibc 2.0 and Solaris 8. */
164 #if PTRDIFF_MAX == INT_MAX
166 #elif PTRDIFF_MAX == LONG_MAX
168 #elif PTRDIFF_MAX == LLONG_MAX
174 /* Extra internal type checking? */
176 /* Define Emacs versions of <assert.h>'s 'assert (COND)' and <verify.h>'s
177 'assume (COND)'. COND should be free of side effects, as it may or
178 may not be evaluated.
180 'eassert (COND)' checks COND at runtime if ENABLE_CHECKING is
181 defined and suppress_checking is false, and does nothing otherwise.
182 Emacs dies if COND is checked and is false. The suppress_checking
183 variable is initialized to 0 in alloc.c. Set it to 1 using a
184 debugger to temporarily disable aborting on detected internal
185 inconsistencies or error conditions.
187 In some cases, a good compiler may be able to optimize away the
188 eassert macro even if ENABLE_CHECKING is true, e.g., if XSTRING (x)
189 uses eassert to test STRINGP (x), but a particular use of XSTRING
190 is invoked only after testing that STRINGP (x) is true, making the
193 eassume is like eassert except that it also causes the compiler to
194 assume that COND is true afterwards, regardless of whether runtime
195 checking is enabled. This can improve performance in some cases,
196 though it can degrade performance in others. It's often suboptimal
197 for COND to call external functions or access volatile storage. */
199 #ifndef ENABLE_CHECKING
200 # define eassert(cond) ((void) (false && (cond))) /* Check COND compiles. */
201 # define eassume(cond) assume (cond)
202 #else /* ENABLE_CHECKING */
204 extern _Noreturn
void die (const char *, const char *, int);
206 extern bool suppress_checking EXTERNALLY_VISIBLE
;
208 # define eassert(cond) \
209 (suppress_checking || (cond) \
211 : die (# cond, __FILE__, __LINE__))
212 # define eassume(cond) \
217 : die (# cond, __FILE__, __LINE__))
218 #endif /* ENABLE_CHECKING */
221 /* Use the configure flag --enable-check-lisp-object-type to make
222 Lisp_Object use a struct type instead of the default int. The flag
223 causes CHECK_LISP_OBJECT_TYPE to be defined. */
225 /***** Select the tagging scheme. *****/
226 /* The following option controls the tagging scheme:
227 - USE_LSB_TAG means that we can assume the least 3 bits of pointers are
228 always 0, and we can thus use them to hold tag bits, without
229 restricting our addressing space.
231 If ! USE_LSB_TAG, then use the top 3 bits for tagging, thus
232 restricting our possible address range.
234 USE_LSB_TAG not only requires the least 3 bits of pointers returned by
235 malloc to be 0 but also needs to be able to impose a mult-of-8 alignment
236 on the few static Lisp_Objects used: lispsym, all the defsubr, and
237 the two special buffers buffer_defaults and buffer_local_symbols. */
241 /* 2**GCTYPEBITS. This must be a macro that expands to a literal
242 integer constant, for MSVC. */
243 #define GCALIGNMENT 8
245 /* Number of bits in a Lisp_Object value, not counting the tag. */
246 VALBITS
= BITS_PER_EMACS_INT
- GCTYPEBITS
,
248 /* Number of bits in a Lisp fixnum tag. */
249 INTTYPEBITS
= GCTYPEBITS
- 1,
251 /* Number of bits in a Lisp fixnum value, not counting the tag. */
252 FIXNUM_BITS
= VALBITS
+ 1
255 #if GCALIGNMENT != 1 << GCTYPEBITS
256 # error "GCALIGNMENT and GCTYPEBITS are inconsistent"
259 /* The maximum value that can be stored in a EMACS_INT, assuming all
260 bits other than the type bits contribute to a nonnegative signed value.
261 This can be used in #if, e.g., '#if USB_TAG' below expands to an
262 expression involving VAL_MAX. */
263 #define VAL_MAX (EMACS_INT_MAX >> (GCTYPEBITS - 1))
265 /* Whether the least-significant bits of an EMACS_INT contain the tag.
266 On hosts where pointers-as-ints do not exceed VAL_MAX / 2, USE_LSB_TAG is:
267 a. unnecessary, because the top bits of an EMACS_INT are unused, and
268 b. slower, because it typically requires extra masking.
269 So, USE_LSB_TAG is true only on hosts where it might be useful. */
270 DEFINE_GDB_SYMBOL_BEGIN (bool, USE_LSB_TAG
)
271 #define USE_LSB_TAG (VAL_MAX / 2 < INTPTR_MAX)
272 DEFINE_GDB_SYMBOL_END (USE_LSB_TAG
)
274 #if !USE_LSB_TAG && !defined WIDE_EMACS_INT
275 # error "USE_LSB_TAG not supported on this platform; please report this." \
276 "Try 'configure --with-wide-int' to work around the problem."
281 # define alignas(alignment) /* empty */
283 # error "USE_LSB_TAG requires alignas"
287 #ifdef HAVE_STRUCT_ATTRIBUTE_ALIGNED
288 # define GCALIGNED __attribute__ ((aligned (GCALIGNMENT)))
290 # define GCALIGNED /* empty */
293 /* Some operations are so commonly executed that they are implemented
294 as macros, not functions, because otherwise runtime performance would
295 suffer too much when compiling with GCC without optimization.
296 There's no need to inline everything, just the operations that
297 would otherwise cause a serious performance problem.
299 For each such operation OP, define a macro lisp_h_OP that contains
300 the operation's implementation. That way, OP can be implemented
301 via a macro definition like this:
303 #define OP(x) lisp_h_OP (x)
305 and/or via a function definition like this:
307 LISP_MACRO_DEFUN (OP, Lisp_Object, (Lisp_Object x), (x))
309 which macro-expands to this:
311 Lisp_Object (OP) (Lisp_Object x) { return lisp_h_OP (x); }
313 without worrying about the implementations diverging, since
314 lisp_h_OP defines the actual implementation. The lisp_h_OP macros
315 are intended to be private to this include file, and should not be
318 FIXME: Remove the lisp_h_OP macros, and define just the inline OP
319 functions, once most developers have access to GCC 4.8 or later and
320 can use "gcc -Og" to debug. Maybe in the year 2016. See
323 Commentary for these macros can be found near their corresponding
326 #if CHECK_LISP_OBJECT_TYPE
327 # define lisp_h_XLI(o) ((o).i)
328 # define lisp_h_XIL(i) ((Lisp_Object) { i })
330 # define lisp_h_XLI(o) (o)
331 # define lisp_h_XIL(i) (i)
333 #define lisp_h_CHECK_LIST_CONS(x, y) CHECK_TYPE (CONSP (x), Qlistp, y)
334 #define lisp_h_CHECK_NUMBER(x) CHECK_TYPE (INTEGERP (x), Qintegerp, x)
335 #define lisp_h_CHECK_SYMBOL(x) CHECK_TYPE (SYMBOLP (x), Qsymbolp, x)
336 #define lisp_h_CHECK_TYPE(ok, predicate, x) \
337 ((ok) ? (void) 0 : (void) wrong_type_argument (predicate, x))
338 #define lisp_h_CONSP(x) (XTYPE (x) == Lisp_Cons)
339 #define lisp_h_EQ(x, y) (XLI (x) == XLI (y))
340 #define lisp_h_FLOATP(x) (XTYPE (x) == Lisp_Float)
341 #define lisp_h_INTEGERP(x) ((XTYPE (x) & (Lisp_Int0 | ~Lisp_Int1)) == Lisp_Int0)
342 #define lisp_h_MARKERP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Marker)
343 #define lisp_h_MISCP(x) (XTYPE (x) == Lisp_Misc)
344 #define lisp_h_NILP(x) EQ (x, Qnil)
345 #define lisp_h_SET_SYMBOL_VAL(sym, v) \
346 (eassert ((sym)->redirect == SYMBOL_PLAINVAL), (sym)->val.value = (v))
347 #define lisp_h_SYMBOL_CONSTANT_P(sym) (XSYMBOL (sym)->constant)
348 #define lisp_h_SYMBOL_VAL(sym) \
349 (eassert ((sym)->redirect == SYMBOL_PLAINVAL), (sym)->val.value)
350 #define lisp_h_SYMBOLP(x) (XTYPE (x) == Lisp_Symbol)
351 #define lisp_h_VECTORLIKEP(x) (XTYPE (x) == Lisp_Vectorlike)
352 #define lisp_h_XCAR(c) XCONS (c)->car
353 #define lisp_h_XCDR(c) XCONS (c)->u.cdr
354 #define lisp_h_XCONS(a) \
355 (eassert (CONSP (a)), (struct Lisp_Cons *) XUNTAG (a, Lisp_Cons))
356 #define lisp_h_XHASH(a) XUINT (a)
357 #define lisp_h_XPNTR(a) \
358 (SYMBOLP (a) ? XSYMBOL (a) : (void *) ((intptr_t) (XLI (a) & VALMASK)))
359 #ifndef GC_CHECK_CONS_LIST
360 # define lisp_h_check_cons_list() ((void) 0)
363 # define lisp_h_make_number(n) \
364 XIL ((EMACS_INT) (((EMACS_UINT) (n) << INTTYPEBITS) + Lisp_Int0))
365 # define lisp_h_XFASTINT(a) XINT (a)
366 # define lisp_h_XINT(a) (XLI (a) >> INTTYPEBITS)
367 # define lisp_h_XSYMBOL(a) \
368 (eassert (SYMBOLP (a)), \
369 (struct Lisp_Symbol *) ((uintptr_t) XLI (a) - Lisp_Symbol \
371 # define lisp_h_XTYPE(a) ((enum Lisp_Type) (XLI (a) & ~VALMASK))
372 # define lisp_h_XUNTAG(a, type) ((void *) (intptr_t) (XLI (a) - (type)))
375 /* When compiling via gcc -O0, define the key operations as macros, as
376 Emacs is too slow otherwise. To disable this optimization, compile
377 with -DINLINING=false. */
378 #if (defined __NO_INLINE__ \
379 && ! defined __OPTIMIZE__ && ! defined __OPTIMIZE_SIZE__ \
380 && ! (defined INLINING && ! INLINING))
381 # define XLI(o) lisp_h_XLI (o)
382 # define XIL(i) lisp_h_XIL (i)
383 # define CHECK_LIST_CONS(x, y) lisp_h_CHECK_LIST_CONS (x, y)
384 # define CHECK_NUMBER(x) lisp_h_CHECK_NUMBER (x)
385 # define CHECK_SYMBOL(x) lisp_h_CHECK_SYMBOL (x)
386 # define CHECK_TYPE(ok, predicate, x) lisp_h_CHECK_TYPE (ok, predicate, x)
387 # define CONSP(x) lisp_h_CONSP (x)
388 # define EQ(x, y) lisp_h_EQ (x, y)
389 # define FLOATP(x) lisp_h_FLOATP (x)
390 # define INTEGERP(x) lisp_h_INTEGERP (x)
391 # define MARKERP(x) lisp_h_MARKERP (x)
392 # define MISCP(x) lisp_h_MISCP (x)
393 # define NILP(x) lisp_h_NILP (x)
394 # define SET_SYMBOL_VAL(sym, v) lisp_h_SET_SYMBOL_VAL (sym, v)
395 # define SYMBOL_CONSTANT_P(sym) lisp_h_SYMBOL_CONSTANT_P (sym)
396 # define SYMBOL_VAL(sym) lisp_h_SYMBOL_VAL (sym)
397 # define SYMBOLP(x) lisp_h_SYMBOLP (x)
398 # define VECTORLIKEP(x) lisp_h_VECTORLIKEP (x)
399 # define XCAR(c) lisp_h_XCAR (c)
400 # define XCDR(c) lisp_h_XCDR (c)
401 # define XCONS(a) lisp_h_XCONS (a)
402 # define XHASH(a) lisp_h_XHASH (a)
403 # define XPNTR(a) lisp_h_XPNTR (a)
404 # ifndef GC_CHECK_CONS_LIST
405 # define check_cons_list() lisp_h_check_cons_list ()
408 # define make_number(n) lisp_h_make_number (n)
409 # define XFASTINT(a) lisp_h_XFASTINT (a)
410 # define XINT(a) lisp_h_XINT (a)
411 # define XSYMBOL(a) lisp_h_XSYMBOL (a)
412 # define XTYPE(a) lisp_h_XTYPE (a)
413 # define XUNTAG(a, type) lisp_h_XUNTAG (a, type)
417 /* Define NAME as a lisp.h inline function that returns TYPE and has
418 arguments declared as ARGDECLS and passed as ARGS. ARGDECLS and
419 ARGS should be parenthesized. Implement the function by calling
421 #define LISP_MACRO_DEFUN(name, type, argdecls, args) \
422 INLINE type (name) argdecls { return lisp_h_##name args; }
424 /* like LISP_MACRO_DEFUN, except NAME returns void. */
425 #define LISP_MACRO_DEFUN_VOID(name, argdecls, args) \
426 INLINE void (name) argdecls { lisp_h_##name args; }
429 /* Define the fundamental Lisp data structures. */
431 /* This is the set of Lisp data types. If you want to define a new
432 data type, read the comments after Lisp_Fwd_Type definition
435 /* Lisp integers use 2 tags, to give them one extra bit, thus
436 extending their range from, e.g., -2^28..2^28-1 to -2^29..2^29-1. */
437 #define INTMASK (EMACS_INT_MAX >> (INTTYPEBITS - 1))
438 #define case_Lisp_Int case Lisp_Int0: case Lisp_Int1
440 /* Idea stolen from GDB. Pedantic GCC complains about enum bitfields,
441 MSVC doesn't support them, and xlc and Oracle Studio c99 complain
442 vociferously about them. */
443 #if (defined __STRICT_ANSI__ || defined _MSC_VER || defined __IBMC__ \
444 || (defined __SUNPRO_C && __STDC__))
445 #define ENUM_BF(TYPE) unsigned int
447 #define ENUM_BF(TYPE) enum TYPE
453 /* Symbol. XSYMBOL (object) points to a struct Lisp_Symbol. */
456 /* Miscellaneous. XMISC (object) points to a union Lisp_Misc,
457 whose first member indicates the subtype. */
460 /* Integer. XINT (obj) is the integer value. */
462 Lisp_Int1
= USE_LSB_TAG
? 6 : 3,
464 /* String. XSTRING (object) points to a struct Lisp_String.
465 The length of the string, and its contents, are stored therein. */
468 /* Vector of Lisp objects, or something resembling it.
469 XVECTOR (object) points to a struct Lisp_Vector, which contains
470 the size and contents. The size field also contains the type
471 information, if it's not a real vector object. */
474 /* Cons. XCONS (object) points to a struct Lisp_Cons. */
475 Lisp_Cons
= USE_LSB_TAG
? 3 : 6,
480 /* This is the set of data types that share a common structure.
481 The first member of the structure is a type code from this set.
482 The enum values are arbitrary, but we'll use large numbers to make it
483 more likely that we'll spot the error if a random word in memory is
484 mistakenly interpreted as a Lisp_Misc. */
487 Lisp_Misc_Free
= 0x5eab,
490 Lisp_Misc_Save_Value
,
491 /* Currently floats are not a misc type,
492 but let's define this in case we want to change that. */
494 /* This is not a type code. It is for range checking. */
498 /* These are the types of forwarding objects used in the value slot
499 of symbols for special built-in variables whose value is stored in
503 Lisp_Fwd_Int
, /* Fwd to a C `int' variable. */
504 Lisp_Fwd_Bool
, /* Fwd to a C boolean var. */
505 Lisp_Fwd_Obj
, /* Fwd to a C Lisp_Object variable. */
506 Lisp_Fwd_Buffer_Obj
, /* Fwd to a Lisp_Object field of buffers. */
507 Lisp_Fwd_Kboard_Obj
/* Fwd to a Lisp_Object field of kboards. */
510 /* If you want to define a new Lisp data type, here are some
511 instructions. See the thread at
512 http://lists.gnu.org/archive/html/emacs-devel/2012-10/msg00561.html
515 First, there are already a couple of Lisp types that can be used if
516 your new type does not need to be exposed to Lisp programs nor
517 displayed to users. These are Lisp_Save_Value, a Lisp_Misc
518 subtype; and PVEC_OTHER, a kind of vectorlike object. The former
519 is suitable for temporarily stashing away pointers and integers in
520 a Lisp object. The latter is useful for vector-like Lisp objects
521 that need to be used as part of other objects, but which are never
522 shown to users or Lisp code (search for PVEC_OTHER in xterm.c for
525 These two types don't look pretty when printed, so they are
526 unsuitable for Lisp objects that can be exposed to users.
528 To define a new data type, add one more Lisp_Misc subtype or one
529 more pseudovector subtype. Pseudovectors are more suitable for
530 objects with several slots that need to support fast random access,
531 while Lisp_Misc types are for everything else. A pseudovector object
532 provides one or more slots for Lisp objects, followed by struct
533 members that are accessible only from C. A Lisp_Misc object is a
534 wrapper for a C struct that can contain anything you like.
536 Explicit freeing is discouraged for Lisp objects in general. But if
537 you really need to exploit this, use Lisp_Misc (check free_misc in
538 alloc.c to see why). There is no way to free a vectorlike object.
540 To add a new pseudovector type, extend the pvec_type enumeration;
541 to add a new Lisp_Misc, extend the Lisp_Misc_Type enumeration.
543 For a Lisp_Misc, you will also need to add your entry to union
544 Lisp_Misc (but make sure the first word has the same structure as
545 the others, starting with a 16-bit member of the Lisp_Misc_Type
546 enumeration and a 1-bit GC markbit) and make sure the overall size
547 of the union is not increased by your addition.
549 For a new pseudovector, it's highly desirable to limit the size
550 of your data type by VBLOCK_BYTES_MAX bytes (defined in alloc.c).
551 Otherwise you will need to change sweep_vectors (also in alloc.c).
553 Then you will need to add switch branches in print.c (in
554 print_object, to print your object, and possibly also in
555 print_preprocess) and to alloc.c, to mark your object (in
556 mark_object) and to free it (in gc_sweep). The latter is also the
557 right place to call any code specific to your data type that needs
558 to run when the object is recycled -- e.g., free any additional
559 resources allocated for it that are not Lisp objects. You can even
560 make a pointer to the function that frees the resources a slot in
561 your object -- this way, the same object could be used to represent
562 several disparate C structures. */
564 #ifdef CHECK_LISP_OBJECT_TYPE
566 typedef struct { EMACS_INT i
; } Lisp_Object
;
568 #define LISP_INITIALLY(i) {i}
570 #undef CHECK_LISP_OBJECT_TYPE
571 enum CHECK_LISP_OBJECT_TYPE
{ CHECK_LISP_OBJECT_TYPE
= true };
572 #else /* CHECK_LISP_OBJECT_TYPE */
574 /* If a struct type is not wanted, define Lisp_Object as just a number. */
576 typedef EMACS_INT Lisp_Object
;
577 #define LISP_INITIALLY(i) (i)
578 enum CHECK_LISP_OBJECT_TYPE
{ CHECK_LISP_OBJECT_TYPE
= false };
579 #endif /* CHECK_LISP_OBJECT_TYPE */
581 #define LISP_INITIALLY_ZERO LISP_INITIALLY (0)
583 /* Forward declarations. */
585 /* Defined in this file. */
587 INLINE
bool BOOL_VECTOR_P (Lisp_Object
);
588 INLINE
bool BUFFER_OBJFWDP (union Lisp_Fwd
*);
589 INLINE
bool BUFFERP (Lisp_Object
);
590 INLINE
bool CHAR_TABLE_P (Lisp_Object
);
591 INLINE Lisp_Object
CHAR_TABLE_REF_ASCII (Lisp_Object
, ptrdiff_t);
592 INLINE
bool (CONSP
) (Lisp_Object
);
593 INLINE
bool (FLOATP
) (Lisp_Object
);
594 INLINE
bool functionp (Lisp_Object
);
595 INLINE
bool (INTEGERP
) (Lisp_Object
);
596 INLINE
bool (MARKERP
) (Lisp_Object
);
597 INLINE
bool (MISCP
) (Lisp_Object
);
598 INLINE
bool (NILP
) (Lisp_Object
);
599 INLINE
bool OVERLAYP (Lisp_Object
);
600 INLINE
bool PROCESSP (Lisp_Object
);
601 INLINE
bool PSEUDOVECTORP (Lisp_Object
, int);
602 INLINE
bool SAVE_VALUEP (Lisp_Object
);
603 INLINE
void set_sub_char_table_contents (Lisp_Object
, ptrdiff_t,
605 INLINE
bool STRINGP (Lisp_Object
);
606 INLINE
bool SUB_CHAR_TABLE_P (Lisp_Object
);
607 INLINE
bool SUBRP (Lisp_Object
);
608 INLINE
bool (SYMBOLP
) (Lisp_Object
);
609 INLINE
bool (VECTORLIKEP
) (Lisp_Object
);
610 INLINE
bool WINDOWP (Lisp_Object
);
611 INLINE
bool TERMINALP (Lisp_Object
);
612 INLINE
struct Lisp_Save_Value
*XSAVE_VALUE (Lisp_Object
);
613 INLINE
struct Lisp_Symbol
*(XSYMBOL
) (Lisp_Object
);
614 INLINE
void *(XUNTAG
) (Lisp_Object
, int);
616 /* Defined in chartab.c. */
617 extern Lisp_Object
char_table_ref (Lisp_Object
, int);
618 extern void char_table_set (Lisp_Object
, int, Lisp_Object
);
620 /* Defined in data.c. */
621 extern _Noreturn Lisp_Object
wrong_type_argument (Lisp_Object
, Lisp_Object
);
622 extern _Noreturn
void wrong_choice (Lisp_Object
, Lisp_Object
);
624 /* Defined in emacs.c. */
625 extern bool might_dump
;
626 /* True means Emacs has already been initialized.
627 Used during startup to detect startup of dumped Emacs. */
628 extern bool initialized
;
630 /* Defined in floatfns.c. */
631 extern double extract_float (Lisp_Object
);
634 /* Interned state of a symbol. */
638 SYMBOL_UNINTERNED
= 0,
640 SYMBOL_INTERNED_IN_INITIAL_OBARRAY
= 2
647 SYMBOL_LOCALIZED
= 2,
653 bool_bf gcmarkbit
: 1;
655 /* Indicates where the value can be found:
656 0 : it's a plain var, the value is in the `value' field.
657 1 : it's a varalias, the value is really in the `alias' symbol.
658 2 : it's a localized var, the value is in the `blv' object.
659 3 : it's a forwarding variable, the value is in `forward'. */
660 ENUM_BF (symbol_redirect
) redirect
: 3;
662 /* Non-zero means symbol is constant, i.e. changing its value
663 should signal an error. If the value is 3, then the var
664 can be changed, but only by `defconst'. */
665 unsigned constant
: 2;
667 /* Interned state of the symbol. This is an enumerator from
668 enum symbol_interned. */
669 unsigned interned
: 2;
671 /* True means that this variable has been explicitly declared
672 special (with `defvar' etc), and shouldn't be lexically bound. */
673 bool_bf declared_special
: 1;
675 /* True if pointed to from purespace and hence can't be GC'd. */
678 /* The symbol's name, as a Lisp string. */
681 /* Value of the symbol or Qunbound if unbound. Which alternative of the
682 union is used depends on the `redirect' field above. */
685 struct Lisp_Symbol
*alias
;
686 struct Lisp_Buffer_Local_Value
*blv
;
690 /* Function value of the symbol or Qnil if not fboundp. */
691 Lisp_Object function
;
693 /* The symbol's property list. */
696 /* Next symbol in obarray bucket, if the symbol is interned. */
697 struct Lisp_Symbol
*next
;
700 /* Declare a Lisp-callable function. The MAXARGS parameter has the same
701 meaning as in the DEFUN macro, and is used to construct a prototype. */
702 /* We can use the same trick as in the DEFUN macro to generate the
703 appropriate prototype. */
704 #define EXFUN(fnname, maxargs) \
705 extern Lisp_Object fnname DEFUN_ARGS_ ## maxargs
707 /* Note that the weird token-substitution semantics of ANSI C makes
708 this work for MANY and UNEVALLED. */
709 #define DEFUN_ARGS_MANY (ptrdiff_t, Lisp_Object *)
710 #define DEFUN_ARGS_UNEVALLED (Lisp_Object)
711 #define DEFUN_ARGS_0 (void)
712 #define DEFUN_ARGS_1 (Lisp_Object)
713 #define DEFUN_ARGS_2 (Lisp_Object, Lisp_Object)
714 #define DEFUN_ARGS_3 (Lisp_Object, Lisp_Object, Lisp_Object)
715 #define DEFUN_ARGS_4 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object)
716 #define DEFUN_ARGS_5 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
718 #define DEFUN_ARGS_6 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
719 Lisp_Object, Lisp_Object)
720 #define DEFUN_ARGS_7 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
721 Lisp_Object, Lisp_Object, Lisp_Object)
722 #define DEFUN_ARGS_8 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
723 Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object)
725 /* Yield an integer that contains TAG along with PTR. */
726 #define TAG_PTR(tag, ptr) \
727 ((USE_LSB_TAG ? (tag) : (EMACS_UINT) (tag) << VALBITS) + (uintptr_t) (ptr))
729 /* Yield an integer that contains a symbol tag along with OFFSET.
730 OFFSET should be the offset in bytes from 'lispsym' to the symbol. */
731 #define TAG_SYMOFFSET(offset) \
732 TAG_PTR (Lisp_Symbol, \
733 ((uintptr_t) (offset) >> (USE_LSB_TAG ? 0 : GCTYPEBITS)))
735 /* Declare extern constants for Lisp symbols. These can be helpful
736 when using a debugger like GDB, on older platforms where the debug
737 format does not represent C macros. */
738 #define DEFINE_LISP_SYMBOL_BEGIN(name) \
739 DEFINE_GDB_SYMBOL_BEGIN (Lisp_Object, name)
740 #define DEFINE_LISP_SYMBOL_END(name) \
741 DEFINE_GDB_SYMBOL_END (LISP_INITIALLY (TAG_SYMOFFSET (i##name \
746 /* Convert a Lisp_Object to the corresponding EMACS_INT and vice versa.
747 At the machine level, these operations are no-ops. */
748 LISP_MACRO_DEFUN (XLI
, EMACS_INT
, (Lisp_Object o
), (o
))
749 LISP_MACRO_DEFUN (XIL
, Lisp_Object
, (EMACS_INT i
), (i
))
751 /* In the size word of a vector, this bit means the vector has been marked. */
753 DEFINE_GDB_SYMBOL_BEGIN (ptrdiff_t, ARRAY_MARK_FLAG
)
754 # define ARRAY_MARK_FLAG PTRDIFF_MIN
755 DEFINE_GDB_SYMBOL_END (ARRAY_MARK_FLAG
)
757 /* In the size word of a struct Lisp_Vector, this bit means it's really
758 some other vector-like object. */
759 DEFINE_GDB_SYMBOL_BEGIN (ptrdiff_t, PSEUDOVECTOR_FLAG
)
760 # define PSEUDOVECTOR_FLAG (PTRDIFF_MAX - PTRDIFF_MAX / 2)
761 DEFINE_GDB_SYMBOL_END (PSEUDOVECTOR_FLAG
)
763 /* In a pseudovector, the size field actually contains a word with one
764 PSEUDOVECTOR_FLAG bit set, and one of the following values extracted
765 with PVEC_TYPE_MASK to indicate the actual type. */
777 PVEC_WINDOW_CONFIGURATION
,
785 /* These should be last, check internal_equal to see why. */
789 PVEC_FONT
/* Should be last because it's used for range checking. */
794 /* For convenience, we also store the number of elements in these bits.
795 Note that this size is not necessarily the memory-footprint size, but
796 only the number of Lisp_Object fields (that need to be traced by GC).
797 The distinction is used, e.g., by Lisp_Process, which places extra
798 non-Lisp_Object fields at the end of the structure. */
799 PSEUDOVECTOR_SIZE_BITS
= 12,
800 PSEUDOVECTOR_SIZE_MASK
= (1 << PSEUDOVECTOR_SIZE_BITS
) - 1,
802 /* To calculate the memory footprint of the pseudovector, it's useful
803 to store the size of non-Lisp area in word_size units here. */
804 PSEUDOVECTOR_REST_BITS
= 12,
805 PSEUDOVECTOR_REST_MASK
= (((1 << PSEUDOVECTOR_REST_BITS
) - 1)
806 << PSEUDOVECTOR_SIZE_BITS
),
808 /* Used to extract pseudovector subtype information. */
809 PSEUDOVECTOR_AREA_BITS
= PSEUDOVECTOR_SIZE_BITS
+ PSEUDOVECTOR_REST_BITS
,
810 PVEC_TYPE_MASK
= 0x3f << PSEUDOVECTOR_AREA_BITS
813 /* These functions extract various sorts of values from a Lisp_Object.
814 For example, if tem is a Lisp_Object whose type is Lisp_Cons,
815 XCONS (tem) is the struct Lisp_Cons * pointing to the memory for
818 /* Mask for the value (as opposed to the type bits) of a Lisp object. */
819 DEFINE_GDB_SYMBOL_BEGIN (EMACS_INT
, VALMASK
)
820 # define VALMASK (USE_LSB_TAG ? - (1 << GCTYPEBITS) : VAL_MAX)
821 DEFINE_GDB_SYMBOL_END (VALMASK
)
823 /* Largest and smallest representable fixnum values. These are the C
824 values. They are macros for use in static initializers. */
825 #define MOST_POSITIVE_FIXNUM (EMACS_INT_MAX >> INTTYPEBITS)
826 #define MOST_NEGATIVE_FIXNUM (-1 - MOST_POSITIVE_FIXNUM)
830 LISP_MACRO_DEFUN (make_number
, Lisp_Object
, (EMACS_INT n
), (n
))
831 LISP_MACRO_DEFUN (XINT
, EMACS_INT
, (Lisp_Object a
), (a
))
832 LISP_MACRO_DEFUN (XFASTINT
, EMACS_INT
, (Lisp_Object a
), (a
))
833 LISP_MACRO_DEFUN (XSYMBOL
, struct Lisp_Symbol
*, (Lisp_Object a
), (a
))
834 LISP_MACRO_DEFUN (XTYPE
, enum Lisp_Type
, (Lisp_Object a
), (a
))
835 LISP_MACRO_DEFUN (XUNTAG
, void *, (Lisp_Object a
, int type
), (a
, type
))
837 #else /* ! USE_LSB_TAG */
839 /* Although compiled only if ! USE_LSB_TAG, the following functions
840 also work when USE_LSB_TAG; this is to aid future maintenance when
841 the lisp_h_* macros are eventually removed. */
843 /* Make a Lisp integer representing the value of the low order
846 make_number (EMACS_INT n
)
848 EMACS_INT int0
= Lisp_Int0
;
852 n
= u
<< INTTYPEBITS
;
858 n
+= (int0
<< VALBITS
);
863 /* Extract A's value as a signed integer. */
867 EMACS_INT i
= XLI (a
);
871 i
= u
<< INTTYPEBITS
;
873 return i
>> INTTYPEBITS
;
876 /* Like XINT (A), but may be faster. A must be nonnegative.
877 If ! USE_LSB_TAG, this takes advantage of the fact that Lisp
878 integers have zero-bits in their tags. */
880 XFASTINT (Lisp_Object a
)
882 EMACS_INT int0
= Lisp_Int0
;
883 EMACS_INT n
= USE_LSB_TAG
? XINT (a
) : XLI (a
) - (int0
<< VALBITS
);
888 /* Extract A's value as a symbol. */
889 INLINE
struct Lisp_Symbol
*
890 XSYMBOL (Lisp_Object a
)
892 uintptr_t i
= (uintptr_t) XUNTAG (a
, Lisp_Symbol
);
895 void *p
= (char *) lispsym
+ i
;
899 /* Extract A's type. */
900 INLINE
enum Lisp_Type
901 XTYPE (Lisp_Object a
)
903 EMACS_UINT i
= XLI (a
);
904 return USE_LSB_TAG
? i
& ~VALMASK
: i
>> VALBITS
;
907 /* Extract A's pointer value, assuming A's type is TYPE. */
909 XUNTAG (Lisp_Object a
, int type
)
911 intptr_t i
= USE_LSB_TAG
? XLI (a
) - type
: XLI (a
) & VALMASK
;
915 #endif /* ! USE_LSB_TAG */
917 /* Extract the pointer hidden within A. */
918 LISP_MACRO_DEFUN (XPNTR
, void *, (Lisp_Object a
), (a
))
920 /* Extract A's value as an unsigned integer. */
922 XUINT (Lisp_Object a
)
924 EMACS_UINT i
= XLI (a
);
925 return USE_LSB_TAG
? i
>> INTTYPEBITS
: i
& INTMASK
;
928 /* Return A's (Lisp-integer sized) hash. Happens to be like XUINT
929 right now, but XUINT should only be applied to objects we know are
931 LISP_MACRO_DEFUN (XHASH
, EMACS_INT
, (Lisp_Object a
), (a
))
933 /* Like make_number (N), but may be faster. N must be in nonnegative range. */
935 make_natnum (EMACS_INT n
)
937 eassert (0 <= n
&& n
<= MOST_POSITIVE_FIXNUM
);
938 EMACS_INT int0
= Lisp_Int0
;
939 return USE_LSB_TAG
? make_number (n
) : XIL (n
+ (int0
<< VALBITS
));
942 /* Return true if X and Y are the same object. */
943 LISP_MACRO_DEFUN (EQ
, bool, (Lisp_Object x
, Lisp_Object y
), (x
, y
))
945 /* Value is true if I doesn't fit into a Lisp fixnum. It is
946 written this way so that it also works if I is of unsigned
947 type or if I is a NaN. */
949 #define FIXNUM_OVERFLOW_P(i) \
950 (! ((0 <= (i) || MOST_NEGATIVE_FIXNUM <= (i)) && (i) <= MOST_POSITIVE_FIXNUM))
953 clip_to_bounds (ptrdiff_t lower
, EMACS_INT num
, ptrdiff_t upper
)
955 return num
< lower
? lower
: num
<= upper
? num
: upper
;
959 /* Extract a value or address from a Lisp_Object. */
961 LISP_MACRO_DEFUN (XCONS
, struct Lisp_Cons
*, (Lisp_Object a
), (a
))
963 INLINE
struct Lisp_Vector
*
964 XVECTOR (Lisp_Object a
)
966 eassert (VECTORLIKEP (a
));
967 return XUNTAG (a
, Lisp_Vectorlike
);
970 INLINE
struct Lisp_String
*
971 XSTRING (Lisp_Object a
)
973 eassert (STRINGP (a
));
974 return XUNTAG (a
, Lisp_String
);
977 /* The index of the C-defined Lisp symbol SYM.
978 This can be used in a static initializer. */
979 #define SYMBOL_INDEX(sym) i##sym
981 INLINE
struct Lisp_Float
*
982 XFLOAT (Lisp_Object a
)
984 eassert (FLOATP (a
));
985 return XUNTAG (a
, Lisp_Float
);
988 /* Pseudovector types. */
990 INLINE
struct Lisp_Process
*
991 XPROCESS (Lisp_Object a
)
993 eassert (PROCESSP (a
));
994 return XUNTAG (a
, Lisp_Vectorlike
);
997 INLINE
struct window
*
998 XWINDOW (Lisp_Object a
)
1000 eassert (WINDOWP (a
));
1001 return XUNTAG (a
, Lisp_Vectorlike
);
1004 INLINE
struct terminal
*
1005 XTERMINAL (Lisp_Object a
)
1007 eassert (TERMINALP (a
));
1008 return XUNTAG (a
, Lisp_Vectorlike
);
1011 INLINE
struct Lisp_Subr
*
1012 XSUBR (Lisp_Object a
)
1014 eassert (SUBRP (a
));
1015 return XUNTAG (a
, Lisp_Vectorlike
);
1018 INLINE
struct buffer
*
1019 XBUFFER (Lisp_Object a
)
1021 eassert (BUFFERP (a
));
1022 return XUNTAG (a
, Lisp_Vectorlike
);
1025 INLINE
struct Lisp_Char_Table
*
1026 XCHAR_TABLE (Lisp_Object a
)
1028 eassert (CHAR_TABLE_P (a
));
1029 return XUNTAG (a
, Lisp_Vectorlike
);
1032 INLINE
struct Lisp_Sub_Char_Table
*
1033 XSUB_CHAR_TABLE (Lisp_Object a
)
1035 eassert (SUB_CHAR_TABLE_P (a
));
1036 return XUNTAG (a
, Lisp_Vectorlike
);
1039 INLINE
struct Lisp_Bool_Vector
*
1040 XBOOL_VECTOR (Lisp_Object a
)
1042 eassert (BOOL_VECTOR_P (a
));
1043 return XUNTAG (a
, Lisp_Vectorlike
);
1046 /* Construct a Lisp_Object from a value or address. */
1049 make_lisp_ptr (void *ptr
, enum Lisp_Type type
)
1051 Lisp_Object a
= XIL (TAG_PTR (type
, ptr
));
1052 eassert (XTYPE (a
) == type
&& XUNTAG (a
, type
) == ptr
);
1057 make_lisp_symbol (struct Lisp_Symbol
*sym
)
1059 Lisp_Object a
= XIL (TAG_SYMOFFSET ((char *) sym
- (char *) lispsym
));
1060 eassert (XSYMBOL (a
) == sym
);
1065 builtin_lisp_symbol (int index
)
1067 return make_lisp_symbol (lispsym
+ index
);
1070 #define XSETINT(a, b) ((a) = make_number (b))
1071 #define XSETFASTINT(a, b) ((a) = make_natnum (b))
1072 #define XSETCONS(a, b) ((a) = make_lisp_ptr (b, Lisp_Cons))
1073 #define XSETVECTOR(a, b) ((a) = make_lisp_ptr (b, Lisp_Vectorlike))
1074 #define XSETSTRING(a, b) ((a) = make_lisp_ptr (b, Lisp_String))
1075 #define XSETSYMBOL(a, b) ((a) = make_lisp_symbol (b))
1076 #define XSETFLOAT(a, b) ((a) = make_lisp_ptr (b, Lisp_Float))
1077 #define XSETMISC(a, b) ((a) = make_lisp_ptr (b, Lisp_Misc))
1079 /* Pseudovector types. */
1081 #define XSETPVECTYPE(v, code) \
1082 ((v)->header.size |= PSEUDOVECTOR_FLAG | ((code) << PSEUDOVECTOR_AREA_BITS))
1083 #define XSETPVECTYPESIZE(v, code, lispsize, restsize) \
1084 ((v)->header.size = (PSEUDOVECTOR_FLAG \
1085 | ((code) << PSEUDOVECTOR_AREA_BITS) \
1086 | ((restsize) << PSEUDOVECTOR_SIZE_BITS) \
1089 /* The cast to struct vectorlike_header * avoids aliasing issues. */
1090 #define XSETPSEUDOVECTOR(a, b, code) \
1091 XSETTYPED_PSEUDOVECTOR (a, b, \
1092 (((struct vectorlike_header *) \
1093 XUNTAG (a, Lisp_Vectorlike)) \
1096 #define XSETTYPED_PSEUDOVECTOR(a, b, size, code) \
1097 (XSETVECTOR (a, b), \
1098 eassert ((size & (PSEUDOVECTOR_FLAG | PVEC_TYPE_MASK)) \
1099 == (PSEUDOVECTOR_FLAG | (code << PSEUDOVECTOR_AREA_BITS))))
1101 #define XSETWINDOW_CONFIGURATION(a, b) \
1102 (XSETPSEUDOVECTOR (a, b, PVEC_WINDOW_CONFIGURATION))
1103 #define XSETPROCESS(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_PROCESS))
1104 #define XSETWINDOW(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_WINDOW))
1105 #define XSETTERMINAL(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_TERMINAL))
1106 #define XSETSUBR(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_SUBR))
1107 #define XSETCOMPILED(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_COMPILED))
1108 #define XSETBUFFER(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_BUFFER))
1109 #define XSETCHAR_TABLE(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_CHAR_TABLE))
1110 #define XSETBOOL_VECTOR(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_BOOL_VECTOR))
1111 #define XSETSUB_CHAR_TABLE(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_SUB_CHAR_TABLE))
1113 /* Efficiently convert a pointer to a Lisp object and back. The
1114 pointer is represented as a Lisp integer, so the garbage collector
1115 does not know about it. The pointer should not have both Lisp_Int1
1116 bits set, which makes this conversion inherently unportable. */
1119 XINTPTR (Lisp_Object a
)
1121 return XUNTAG (a
, Lisp_Int0
);
1125 make_pointer_integer (void *p
)
1127 Lisp_Object a
= XIL (TAG_PTR (Lisp_Int0
, p
));
1128 eassert (INTEGERP (a
) && XINTPTR (a
) == p
);
1132 /* Type checking. */
1134 LISP_MACRO_DEFUN_VOID (CHECK_TYPE
,
1135 (int ok
, Lisp_Object predicate
, Lisp_Object x
),
1138 /* Deprecated and will be removed soon. */
1140 #define INTERNAL_FIELD(field) field ## _
1142 /* See the macros in intervals.h. */
1144 typedef struct interval
*INTERVAL
;
1146 struct GCALIGNED Lisp_Cons
1148 /* Car of this cons cell. */
1153 /* Cdr of this cons cell. */
1156 /* Used to chain conses on a free list. */
1157 struct Lisp_Cons
*chain
;
1161 /* Take the car or cdr of something known to be a cons cell. */
1162 /* The _addr functions shouldn't be used outside of the minimal set
1163 of code that has to know what a cons cell looks like. Other code not
1164 part of the basic lisp implementation should assume that the car and cdr
1165 fields are not accessible. (What if we want to switch to
1166 a copying collector someday? Cached cons cell field addresses may be
1167 invalidated at arbitrary points.) */
1168 INLINE Lisp_Object
*
1169 xcar_addr (Lisp_Object c
)
1171 return &XCONS (c
)->car
;
1173 INLINE Lisp_Object
*
1174 xcdr_addr (Lisp_Object c
)
1176 return &XCONS (c
)->u
.cdr
;
1179 /* Use these from normal code. */
1180 LISP_MACRO_DEFUN (XCAR
, Lisp_Object
, (Lisp_Object c
), (c
))
1181 LISP_MACRO_DEFUN (XCDR
, Lisp_Object
, (Lisp_Object c
), (c
))
1183 /* Use these to set the fields of a cons cell.
1185 Note that both arguments may refer to the same object, so 'n'
1186 should not be read after 'c' is first modified. */
1188 XSETCAR (Lisp_Object c
, Lisp_Object n
)
1193 XSETCDR (Lisp_Object c
, Lisp_Object n
)
1198 /* Take the car or cdr of something whose type is not known. */
1202 return (CONSP (c
) ? XCAR (c
)
1204 : wrong_type_argument (Qlistp
, c
));
1209 return (CONSP (c
) ? XCDR (c
)
1211 : wrong_type_argument (Qlistp
, c
));
1214 /* Take the car or cdr of something whose type is not known. */
1216 CAR_SAFE (Lisp_Object c
)
1218 return CONSP (c
) ? XCAR (c
) : Qnil
;
1221 CDR_SAFE (Lisp_Object c
)
1223 return CONSP (c
) ? XCDR (c
) : Qnil
;
1226 /* In a string or vector, the sign bit of the `size' is the gc mark bit. */
1228 struct GCALIGNED Lisp_String
1231 ptrdiff_t size_byte
;
1232 INTERVAL intervals
; /* Text properties in this string. */
1233 unsigned char *data
;
1236 /* True if STR is a multibyte string. */
1238 STRING_MULTIBYTE (Lisp_Object str
)
1240 return 0 <= XSTRING (str
)->size_byte
;
1243 /* An upper bound on the number of bytes in a Lisp string, not
1244 counting the terminating null. This a tight enough bound to
1245 prevent integer overflow errors that would otherwise occur during
1246 string size calculations. A string cannot contain more bytes than
1247 a fixnum can represent, nor can it be so long that C pointer
1248 arithmetic stops working on the string plus its terminating null.
1249 Although the actual size limit (see STRING_BYTES_MAX in alloc.c)
1250 may be a bit smaller than STRING_BYTES_BOUND, calculating it here
1251 would expose alloc.c internal details that we'd rather keep
1254 This is a macro for use in static initializers. The cast to
1255 ptrdiff_t ensures that the macro is signed. */
1256 #define STRING_BYTES_BOUND \
1257 ((ptrdiff_t) min (MOST_POSITIVE_FIXNUM, min (SIZE_MAX, PTRDIFF_MAX) - 1))
1259 /* Mark STR as a unibyte string. */
1260 #define STRING_SET_UNIBYTE(STR) \
1262 if (EQ (STR, empty_multibyte_string)) \
1263 (STR) = empty_unibyte_string; \
1265 XSTRING (STR)->size_byte = -1; \
1268 /* Mark STR as a multibyte string. Assure that STR contains only
1269 ASCII characters in advance. */
1270 #define STRING_SET_MULTIBYTE(STR) \
1272 if (EQ (STR, empty_unibyte_string)) \
1273 (STR) = empty_multibyte_string; \
1275 XSTRING (STR)->size_byte = XSTRING (STR)->size; \
1278 /* Convenience functions for dealing with Lisp strings. */
1280 INLINE
unsigned char *
1281 SDATA (Lisp_Object string
)
1283 return XSTRING (string
)->data
;
1286 SSDATA (Lisp_Object string
)
1288 /* Avoid "differ in sign" warnings. */
1289 return (char *) SDATA (string
);
1291 INLINE
unsigned char
1292 SREF (Lisp_Object string
, ptrdiff_t index
)
1294 return SDATA (string
)[index
];
1297 SSET (Lisp_Object string
, ptrdiff_t index
, unsigned char new)
1299 SDATA (string
)[index
] = new;
1302 SCHARS (Lisp_Object string
)
1304 return XSTRING (string
)->size
;
1307 #ifdef GC_CHECK_STRING_BYTES
1308 extern ptrdiff_t string_bytes (struct Lisp_String
*);
1311 STRING_BYTES (struct Lisp_String
*s
)
1313 #ifdef GC_CHECK_STRING_BYTES
1314 return string_bytes (s
);
1316 return s
->size_byte
< 0 ? s
->size
: s
->size_byte
;
1321 SBYTES (Lisp_Object string
)
1323 return STRING_BYTES (XSTRING (string
));
1326 STRING_SET_CHARS (Lisp_Object string
, ptrdiff_t newsize
)
1328 XSTRING (string
)->size
= newsize
;
1331 /* Header of vector-like objects. This documents the layout constraints on
1332 vectors and pseudovectors (objects of PVEC_xxx subtype). It also prevents
1333 compilers from being fooled by Emacs's type punning: XSETPSEUDOVECTOR
1334 and PSEUDOVECTORP cast their pointers to struct vectorlike_header *,
1335 because when two such pointers potentially alias, a compiler won't
1336 incorrectly reorder loads and stores to their size fields. See
1338 struct vectorlike_header
1340 /* The only field contains various pieces of information:
1341 - The MSB (ARRAY_MARK_FLAG) holds the gcmarkbit.
1342 - The next bit (PSEUDOVECTOR_FLAG) indicates whether this is a plain
1343 vector (0) or a pseudovector (1).
1344 - If PSEUDOVECTOR_FLAG is 0, the rest holds the size (number
1345 of slots) of the vector.
1346 - If PSEUDOVECTOR_FLAG is 1, the rest is subdivided into three fields:
1347 - a) pseudovector subtype held in PVEC_TYPE_MASK field;
1348 - b) number of Lisp_Objects slots at the beginning of the object
1349 held in PSEUDOVECTOR_SIZE_MASK field. These objects are always
1351 - c) size of the rest fields held in PSEUDOVECTOR_REST_MASK and
1352 measured in word_size units. Rest fields may also include
1353 Lisp_Objects, but these objects usually needs some special treatment
1355 There are some exceptions. For PVEC_FREE, b) is always zero. For
1356 PVEC_BOOL_VECTOR and PVEC_SUBR, both b) and c) are always zero.
1357 Current layout limits the pseudovectors to 63 PVEC_xxx subtypes,
1358 4095 Lisp_Objects in GC-ed area and 4095 word-sized other slots. */
1362 /* A regular vector is just a header plus an array of Lisp_Objects. */
1366 struct vectorlike_header header
;
1367 Lisp_Object contents
[FLEXIBLE_ARRAY_MEMBER
];
1370 /* C11 prohibits alignof (struct Lisp_Vector), so compute it manually. */
1373 ALIGNOF_STRUCT_LISP_VECTOR
1374 = alignof (union { struct vectorlike_header a
; Lisp_Object b
; })
1377 /* A boolvector is a kind of vectorlike, with contents like a string. */
1379 struct Lisp_Bool_Vector
1381 /* HEADER.SIZE is the vector's size field. It doesn't have the real size,
1382 just the subtype information. */
1383 struct vectorlike_header header
;
1384 /* This is the size in bits. */
1386 /* The actual bits, packed into bytes.
1387 Zeros fill out the last word if needed.
1388 The bits are in little-endian order in the bytes, and
1389 the bytes are in little-endian order in the words. */
1390 bits_word data
[FLEXIBLE_ARRAY_MEMBER
];
1394 bool_vector_size (Lisp_Object a
)
1396 EMACS_INT size
= XBOOL_VECTOR (a
)->size
;
1397 eassume (0 <= size
);
1402 bool_vector_data (Lisp_Object a
)
1404 return XBOOL_VECTOR (a
)->data
;
1407 INLINE
unsigned char *
1408 bool_vector_uchar_data (Lisp_Object a
)
1410 return (unsigned char *) bool_vector_data (a
);
1413 /* The number of data words and bytes in a bool vector with SIZE bits. */
1416 bool_vector_words (EMACS_INT size
)
1418 eassume (0 <= size
&& size
<= EMACS_INT_MAX
- (BITS_PER_BITS_WORD
- 1));
1419 return (size
+ BITS_PER_BITS_WORD
- 1) / BITS_PER_BITS_WORD
;
1423 bool_vector_bytes (EMACS_INT size
)
1425 eassume (0 <= size
&& size
<= EMACS_INT_MAX
- (BITS_PER_BITS_WORD
- 1));
1426 return (size
+ BOOL_VECTOR_BITS_PER_CHAR
- 1) / BOOL_VECTOR_BITS_PER_CHAR
;
1429 /* True if A's Ith bit is set. */
1432 bool_vector_bitref (Lisp_Object a
, EMACS_INT i
)
1434 eassume (0 <= i
&& i
< bool_vector_size (a
));
1435 return !! (bool_vector_uchar_data (a
)[i
/ BOOL_VECTOR_BITS_PER_CHAR
]
1436 & (1 << (i
% BOOL_VECTOR_BITS_PER_CHAR
)));
1440 bool_vector_ref (Lisp_Object a
, EMACS_INT i
)
1442 return bool_vector_bitref (a
, i
) ? Qt
: Qnil
;
1445 /* Set A's Ith bit to B. */
1448 bool_vector_set (Lisp_Object a
, EMACS_INT i
, bool b
)
1450 unsigned char *addr
;
1452 eassume (0 <= i
&& i
< bool_vector_size (a
));
1453 addr
= &bool_vector_uchar_data (a
)[i
/ BOOL_VECTOR_BITS_PER_CHAR
];
1456 *addr
|= 1 << (i
% BOOL_VECTOR_BITS_PER_CHAR
);
1458 *addr
&= ~ (1 << (i
% BOOL_VECTOR_BITS_PER_CHAR
));
1461 /* Some handy constants for calculating sizes
1462 and offsets, mostly of vectorlike objects. */
1466 header_size
= offsetof (struct Lisp_Vector
, contents
),
1467 bool_header_size
= offsetof (struct Lisp_Bool_Vector
, data
),
1468 word_size
= sizeof (Lisp_Object
)
1471 /* Conveniences for dealing with Lisp arrays. */
1474 AREF (Lisp_Object array
, ptrdiff_t idx
)
1476 return XVECTOR (array
)->contents
[idx
];
1479 INLINE Lisp_Object
*
1480 aref_addr (Lisp_Object array
, ptrdiff_t idx
)
1482 return & XVECTOR (array
)->contents
[idx
];
1486 ASIZE (Lisp_Object array
)
1488 return XVECTOR (array
)->header
.size
;
1492 ASET (Lisp_Object array
, ptrdiff_t idx
, Lisp_Object val
)
1494 eassert (0 <= idx
&& idx
< ASIZE (array
));
1495 XVECTOR (array
)->contents
[idx
] = val
;
1499 gc_aset (Lisp_Object array
, ptrdiff_t idx
, Lisp_Object val
)
1501 /* Like ASET, but also can be used in the garbage collector:
1502 sweep_weak_table calls set_hash_key etc. while the table is marked. */
1503 eassert (0 <= idx
&& idx
< (ASIZE (array
) & ~ARRAY_MARK_FLAG
));
1504 XVECTOR (array
)->contents
[idx
] = val
;
1507 /* If a struct is made to look like a vector, this macro returns the length
1508 of the shortest vector that would hold that struct. */
1510 #define VECSIZE(type) \
1511 ((sizeof (type) - header_size + word_size - 1) / word_size)
1513 /* Like VECSIZE, but used when the pseudo-vector has non-Lisp_Object fields
1514 at the end and we need to compute the number of Lisp_Object fields (the
1515 ones that the GC needs to trace). */
1517 #define PSEUDOVECSIZE(type, nonlispfield) \
1518 ((offsetof (type, nonlispfield) - header_size) / word_size)
1520 /* Compute A OP B, using the unsigned comparison operator OP. A and B
1521 should be integer expressions. This is not the same as
1522 mathematical comparison; for example, UNSIGNED_CMP (0, <, -1)
1523 returns true. For efficiency, prefer plain unsigned comparison if A
1524 and B's sizes both fit (after integer promotion). */
1525 #define UNSIGNED_CMP(a, op, b) \
1526 (max (sizeof ((a) + 0), sizeof ((b) + 0)) <= sizeof (unsigned) \
1527 ? ((a) + (unsigned) 0) op ((b) + (unsigned) 0) \
1528 : ((a) + (uintmax_t) 0) op ((b) + (uintmax_t) 0))
1530 /* True iff C is an ASCII character. */
1531 #define ASCII_CHAR_P(c) UNSIGNED_CMP (c, <, 0x80)
1533 /* A char-table is a kind of vectorlike, with contents are like a
1534 vector but with a few other slots. For some purposes, it makes
1535 sense to handle a char-table with type struct Lisp_Vector. An
1536 element of a char table can be any Lisp objects, but if it is a sub
1537 char-table, we treat it a table that contains information of a
1538 specific range of characters. A sub char-table is like a vector but
1539 with two integer fields between the header and Lisp data, which means
1540 that it has to be marked with some precautions (see mark_char_table
1541 in alloc.c). A sub char-table appears only in an element of a char-table,
1542 and there's no way to access it directly from Emacs Lisp program. */
1544 enum CHARTAB_SIZE_BITS
1546 CHARTAB_SIZE_BITS_0
= 6,
1547 CHARTAB_SIZE_BITS_1
= 4,
1548 CHARTAB_SIZE_BITS_2
= 5,
1549 CHARTAB_SIZE_BITS_3
= 7
1552 extern const int chartab_size
[4];
1554 struct Lisp_Char_Table
1556 /* HEADER.SIZE is the vector's size field, which also holds the
1557 pseudovector type information. It holds the size, too.
1558 The size counts the defalt, parent, purpose, ascii,
1559 contents, and extras slots. */
1560 struct vectorlike_header header
;
1562 /* This holds a default value,
1563 which is used whenever the value for a specific character is nil. */
1566 /* This points to another char table, which we inherit from when the
1567 value for a specific character is nil. The `defalt' slot takes
1568 precedence over this. */
1571 /* This is a symbol which says what kind of use this char-table is
1573 Lisp_Object purpose
;
1575 /* The bottom sub char-table for characters of the range 0..127. It
1576 is nil if none of ASCII character has a specific value. */
1579 Lisp_Object contents
[(1 << CHARTAB_SIZE_BITS_0
)];
1581 /* These hold additional data. It is a vector. */
1582 Lisp_Object extras
[FLEXIBLE_ARRAY_MEMBER
];
1585 struct Lisp_Sub_Char_Table
1587 /* HEADER.SIZE is the vector's size field, which also holds the
1588 pseudovector type information. It holds the size, too. */
1589 struct vectorlike_header header
;
1591 /* Depth of this sub char-table. It should be 1, 2, or 3. A sub
1592 char-table of depth 1 contains 16 elements, and each element
1593 covers 4096 (128*32) characters. A sub char-table of depth 2
1594 contains 32 elements, and each element covers 128 characters. A
1595 sub char-table of depth 3 contains 128 elements, and each element
1596 is for one character. */
1599 /* Minimum character covered by the sub char-table. */
1602 /* Use set_sub_char_table_contents to set this. */
1603 Lisp_Object contents
[FLEXIBLE_ARRAY_MEMBER
];
1607 CHAR_TABLE_REF_ASCII (Lisp_Object ct
, ptrdiff_t idx
)
1609 struct Lisp_Char_Table
*tbl
= NULL
;
1613 tbl
= tbl
? XCHAR_TABLE (tbl
->parent
) : XCHAR_TABLE (ct
);
1614 val
= (! SUB_CHAR_TABLE_P (tbl
->ascii
) ? tbl
->ascii
1615 : XSUB_CHAR_TABLE (tbl
->ascii
)->contents
[idx
]);
1619 while (NILP (val
) && ! NILP (tbl
->parent
));
1624 /* Almost equivalent to Faref (CT, IDX) with optimization for ASCII
1625 characters. Do not check validity of CT. */
1627 CHAR_TABLE_REF (Lisp_Object ct
, int idx
)
1629 return (ASCII_CHAR_P (idx
)
1630 ? CHAR_TABLE_REF_ASCII (ct
, idx
)
1631 : char_table_ref (ct
, idx
));
1634 /* Equivalent to Faset (CT, IDX, VAL) with optimization for ASCII and
1635 8-bit European characters. Do not check validity of CT. */
1637 CHAR_TABLE_SET (Lisp_Object ct
, int idx
, Lisp_Object val
)
1639 if (ASCII_CHAR_P (idx
) && SUB_CHAR_TABLE_P (XCHAR_TABLE (ct
)->ascii
))
1640 set_sub_char_table_contents (XCHAR_TABLE (ct
)->ascii
, idx
, val
);
1642 char_table_set (ct
, idx
, val
);
1645 /* This structure describes a built-in function.
1646 It is generated by the DEFUN macro only.
1647 defsubr makes it into a Lisp object. */
1651 struct vectorlike_header header
;
1653 Lisp_Object (*a0
) (void);
1654 Lisp_Object (*a1
) (Lisp_Object
);
1655 Lisp_Object (*a2
) (Lisp_Object
, Lisp_Object
);
1656 Lisp_Object (*a3
) (Lisp_Object
, Lisp_Object
, Lisp_Object
);
1657 Lisp_Object (*a4
) (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
1658 Lisp_Object (*a5
) (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
1659 Lisp_Object (*a6
) (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
1660 Lisp_Object (*a7
) (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
1661 Lisp_Object (*a8
) (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
1662 Lisp_Object (*aUNEVALLED
) (Lisp_Object args
);
1663 Lisp_Object (*aMANY
) (ptrdiff_t, Lisp_Object
*);
1665 short min_args
, max_args
;
1666 const char *symbol_name
;
1667 const char *intspec
;
1671 enum char_table_specials
1673 /* This is the number of slots that every char table must have. This
1674 counts the ordinary slots and the top, defalt, parent, and purpose
1676 CHAR_TABLE_STANDARD_SLOTS
= PSEUDOVECSIZE (struct Lisp_Char_Table
, extras
),
1678 /* This is an index of first Lisp_Object field in Lisp_Sub_Char_Table
1679 when the latter is treated as an ordinary Lisp_Vector. */
1680 SUB_CHAR_TABLE_OFFSET
= PSEUDOVECSIZE (struct Lisp_Sub_Char_Table
, contents
)
1683 /* Return the number of "extra" slots in the char table CT. */
1686 CHAR_TABLE_EXTRA_SLOTS (struct Lisp_Char_Table
*ct
)
1688 return ((ct
->header
.size
& PSEUDOVECTOR_SIZE_MASK
)
1689 - CHAR_TABLE_STANDARD_SLOTS
);
1692 /* Make sure that sub char-table contents slot is where we think it is. */
1693 verify (offsetof (struct Lisp_Sub_Char_Table
, contents
)
1694 == offsetof (struct Lisp_Vector
, contents
[SUB_CHAR_TABLE_OFFSET
]));
1696 /***********************************************************************
1698 ***********************************************************************/
1700 /* Value is name of symbol. */
1702 LISP_MACRO_DEFUN (SYMBOL_VAL
, Lisp_Object
, (struct Lisp_Symbol
*sym
), (sym
))
1704 INLINE
struct Lisp_Symbol
*
1705 SYMBOL_ALIAS (struct Lisp_Symbol
*sym
)
1707 eassert (sym
->redirect
== SYMBOL_VARALIAS
);
1708 return sym
->val
.alias
;
1710 INLINE
struct Lisp_Buffer_Local_Value
*
1711 SYMBOL_BLV (struct Lisp_Symbol
*sym
)
1713 eassert (sym
->redirect
== SYMBOL_LOCALIZED
);
1714 return sym
->val
.blv
;
1716 INLINE
union Lisp_Fwd
*
1717 SYMBOL_FWD (struct Lisp_Symbol
*sym
)
1719 eassert (sym
->redirect
== SYMBOL_FORWARDED
);
1720 return sym
->val
.fwd
;
1723 LISP_MACRO_DEFUN_VOID (SET_SYMBOL_VAL
,
1724 (struct Lisp_Symbol
*sym
, Lisp_Object v
), (sym
, v
))
1727 SET_SYMBOL_ALIAS (struct Lisp_Symbol
*sym
, struct Lisp_Symbol
*v
)
1729 eassert (sym
->redirect
== SYMBOL_VARALIAS
);
1733 SET_SYMBOL_BLV (struct Lisp_Symbol
*sym
, struct Lisp_Buffer_Local_Value
*v
)
1735 eassert (sym
->redirect
== SYMBOL_LOCALIZED
);
1739 SET_SYMBOL_FWD (struct Lisp_Symbol
*sym
, union Lisp_Fwd
*v
)
1741 eassert (sym
->redirect
== SYMBOL_FORWARDED
);
1746 SYMBOL_NAME (Lisp_Object sym
)
1748 return XSYMBOL (sym
)->name
;
1751 /* Value is true if SYM is an interned symbol. */
1754 SYMBOL_INTERNED_P (Lisp_Object sym
)
1756 return XSYMBOL (sym
)->interned
!= SYMBOL_UNINTERNED
;
1759 /* Value is true if SYM is interned in initial_obarray. */
1762 SYMBOL_INTERNED_IN_INITIAL_OBARRAY_P (Lisp_Object sym
)
1764 return XSYMBOL (sym
)->interned
== SYMBOL_INTERNED_IN_INITIAL_OBARRAY
;
1767 /* Value is non-zero if symbol is considered a constant, i.e. its
1768 value cannot be changed (there is an exception for keyword symbols,
1769 whose value can be set to the keyword symbol itself). */
1771 LISP_MACRO_DEFUN (SYMBOL_CONSTANT_P
, int, (Lisp_Object sym
), (sym
))
1773 /* Placeholder for make-docfile to process. The actual symbol
1774 definition is done by lread.c's defsym. */
1775 #define DEFSYM(sym, name) /* empty */
1778 /***********************************************************************
1780 ***********************************************************************/
1782 /* The structure of a Lisp hash table. */
1784 struct hash_table_test
1786 /* Name of the function used to compare keys. */
1789 /* User-supplied hash function, or nil. */
1790 Lisp_Object user_hash_function
;
1792 /* User-supplied key comparison function, or nil. */
1793 Lisp_Object user_cmp_function
;
1795 /* C function to compare two keys. */
1796 bool (*cmpfn
) (struct hash_table_test
*t
, Lisp_Object
, Lisp_Object
);
1798 /* C function to compute hash code. */
1799 EMACS_UINT (*hashfn
) (struct hash_table_test
*t
, Lisp_Object
);
1802 struct Lisp_Hash_Table
1804 /* This is for Lisp; the hash table code does not refer to it. */
1805 struct vectorlike_header header
;
1807 /* Nil if table is non-weak. Otherwise a symbol describing the
1808 weakness of the table. */
1811 /* When the table is resized, and this is an integer, compute the
1812 new size by adding this to the old size. If a float, compute the
1813 new size by multiplying the old size with this factor. */
1814 Lisp_Object rehash_size
;
1816 /* Resize hash table when number of entries/ table size is >= this
1818 Lisp_Object rehash_threshold
;
1820 /* Vector of hash codes. If hash[I] is nil, this means that the
1821 I-th entry is unused. */
1824 /* Vector used to chain entries. If entry I is free, next[I] is the
1825 entry number of the next free item. If entry I is non-free,
1826 next[I] is the index of the next entry in the collision chain. */
1829 /* Index of first free entry in free list. */
1830 Lisp_Object next_free
;
1832 /* Bucket vector. A non-nil entry is the index of the first item in
1833 a collision chain. This vector's size can be larger than the
1834 hash table size to reduce collisions. */
1837 /* Only the fields above are traced normally by the GC. The ones below
1838 `count' are special and are either ignored by the GC or traced in
1839 a special way (e.g. because of weakness). */
1841 /* Number of key/value entries in the table. */
1844 /* Vector of keys and values. The key of item I is found at index
1845 2 * I, the value is found at index 2 * I + 1.
1846 This is gc_marked specially if the table is weak. */
1847 Lisp_Object key_and_value
;
1849 /* The comparison and hash functions. */
1850 struct hash_table_test test
;
1852 /* Next weak hash table if this is a weak hash table. The head
1853 of the list is in weak_hash_tables. */
1854 struct Lisp_Hash_Table
*next_weak
;
1858 INLINE
struct Lisp_Hash_Table
*
1859 XHASH_TABLE (Lisp_Object a
)
1861 return XUNTAG (a
, Lisp_Vectorlike
);
1864 #define XSET_HASH_TABLE(VAR, PTR) \
1865 (XSETPSEUDOVECTOR (VAR, PTR, PVEC_HASH_TABLE))
1868 HASH_TABLE_P (Lisp_Object a
)
1870 return PSEUDOVECTORP (a
, PVEC_HASH_TABLE
);
1873 /* Value is the key part of entry IDX in hash table H. */
1875 HASH_KEY (struct Lisp_Hash_Table
*h
, ptrdiff_t idx
)
1877 return AREF (h
->key_and_value
, 2 * idx
);
1880 /* Value is the value part of entry IDX in hash table H. */
1882 HASH_VALUE (struct Lisp_Hash_Table
*h
, ptrdiff_t idx
)
1884 return AREF (h
->key_and_value
, 2 * idx
+ 1);
1887 /* Value is the index of the next entry following the one at IDX
1890 HASH_NEXT (struct Lisp_Hash_Table
*h
, ptrdiff_t idx
)
1892 return AREF (h
->next
, idx
);
1895 /* Value is the hash code computed for entry IDX in hash table H. */
1897 HASH_HASH (struct Lisp_Hash_Table
*h
, ptrdiff_t idx
)
1899 return AREF (h
->hash
, idx
);
1902 /* Value is the index of the element in hash table H that is the
1903 start of the collision list at index IDX in the index vector of H. */
1905 HASH_INDEX (struct Lisp_Hash_Table
*h
, ptrdiff_t idx
)
1907 return AREF (h
->index
, idx
);
1910 /* Value is the size of hash table H. */
1912 HASH_TABLE_SIZE (struct Lisp_Hash_Table
*h
)
1914 return ASIZE (h
->next
);
1917 /* Default size for hash tables if not specified. */
1919 enum DEFAULT_HASH_SIZE
{ DEFAULT_HASH_SIZE
= 65 };
1921 /* Default threshold specifying when to resize a hash table. The
1922 value gives the ratio of current entries in the hash table and the
1923 size of the hash table. */
1925 static double const DEFAULT_REHASH_THRESHOLD
= 0.8;
1927 /* Default factor by which to increase the size of a hash table. */
1929 static double const DEFAULT_REHASH_SIZE
= 1.5;
1931 /* Combine two integers X and Y for hashing. The result might not fit
1932 into a Lisp integer. */
1935 sxhash_combine (EMACS_UINT x
, EMACS_UINT y
)
1937 return (x
<< 4) + (x
>> (BITS_PER_EMACS_INT
- 4)) + y
;
1940 /* Hash X, returning a value that fits into a fixnum. */
1943 SXHASH_REDUCE (EMACS_UINT x
)
1945 return (x
^ x
>> (BITS_PER_EMACS_INT
- FIXNUM_BITS
)) & INTMASK
;
1948 /* These structures are used for various misc types. */
1950 struct Lisp_Misc_Any
/* Supertype of all Misc types. */
1952 ENUM_BF (Lisp_Misc_Type
) type
: 16; /* = Lisp_Misc_??? */
1953 bool_bf gcmarkbit
: 1;
1954 unsigned spacer
: 15;
1959 ENUM_BF (Lisp_Misc_Type
) type
: 16; /* = Lisp_Misc_Marker */
1960 bool_bf gcmarkbit
: 1;
1961 unsigned spacer
: 13;
1962 /* This flag is temporarily used in the functions
1963 decode/encode_coding_object to record that the marker position
1964 must be adjusted after the conversion. */
1965 bool_bf need_adjustment
: 1;
1966 /* True means normal insertion at the marker's position
1967 leaves the marker after the inserted text. */
1968 bool_bf insertion_type
: 1;
1969 /* This is the buffer that the marker points into, or 0 if it points nowhere.
1970 Note: a chain of markers can contain markers pointing into different
1971 buffers (the chain is per buffer_text rather than per buffer, so it's
1972 shared between indirect buffers). */
1973 /* This is used for (other than NULL-checking):
1975 - Fset_marker: check eq(oldbuf, newbuf) to avoid unchain+rechain.
1976 - unchain_marker: to find the list from which to unchain.
1977 - Fkill_buffer: to only unchain the markers of current indirect buffer.
1979 struct buffer
*buffer
;
1981 /* The remaining fields are meaningless in a marker that
1982 does not point anywhere. */
1984 /* For markers that point somewhere,
1985 this is used to chain of all the markers in a given buffer. */
1986 /* We could remove it and use an array in buffer_text instead.
1987 That would also allow to preserve it ordered. */
1988 struct Lisp_Marker
*next
;
1989 /* This is the char position where the marker points. */
1991 /* This is the byte position.
1992 It's mostly used as a charpos<->bytepos cache (i.e. it's not directly
1993 used to implement the functionality of markers, but rather to (ab)use
1994 markers as a cache for char<->byte mappings). */
1998 /* START and END are markers in the overlay's buffer, and
1999 PLIST is the overlay's property list. */
2001 /* An overlay's real data content is:
2003 - buffer (really there are two buffer pointers, one per marker,
2004 and both points to the same buffer)
2005 - insertion type of both ends (per-marker fields)
2006 - start & start byte (of start marker)
2007 - end & end byte (of end marker)
2008 - next (singly linked list of overlays)
2009 - next fields of start and end markers (singly linked list of markers).
2010 I.e. 9words plus 2 bits, 3words of which are for external linked lists.
2013 ENUM_BF (Lisp_Misc_Type
) type
: 16; /* = Lisp_Misc_Overlay */
2014 bool_bf gcmarkbit
: 1;
2015 unsigned spacer
: 15;
2016 struct Lisp_Overlay
*next
;
2022 /* Types of data which may be saved in a Lisp_Save_Value. */
2033 /* Number of bits needed to store one of the above values. */
2034 enum { SAVE_SLOT_BITS
= 3 };
2036 /* Number of slots in a save value where save_type is nonzero. */
2037 enum { SAVE_VALUE_SLOTS
= 4 };
2039 /* Bit-width and values for struct Lisp_Save_Value's save_type member. */
2041 enum { SAVE_TYPE_BITS
= SAVE_VALUE_SLOTS
* SAVE_SLOT_BITS
+ 1 };
2045 SAVE_TYPE_INT_INT
= SAVE_INTEGER
+ (SAVE_INTEGER
<< SAVE_SLOT_BITS
),
2046 SAVE_TYPE_INT_INT_INT
2047 = (SAVE_INTEGER
+ (SAVE_TYPE_INT_INT
<< SAVE_SLOT_BITS
)),
2048 SAVE_TYPE_OBJ_OBJ
= SAVE_OBJECT
+ (SAVE_OBJECT
<< SAVE_SLOT_BITS
),
2049 SAVE_TYPE_OBJ_OBJ_OBJ
= SAVE_OBJECT
+ (SAVE_TYPE_OBJ_OBJ
<< SAVE_SLOT_BITS
),
2050 SAVE_TYPE_OBJ_OBJ_OBJ_OBJ
2051 = SAVE_OBJECT
+ (SAVE_TYPE_OBJ_OBJ_OBJ
<< SAVE_SLOT_BITS
),
2052 SAVE_TYPE_PTR_INT
= SAVE_POINTER
+ (SAVE_INTEGER
<< SAVE_SLOT_BITS
),
2053 SAVE_TYPE_PTR_OBJ
= SAVE_POINTER
+ (SAVE_OBJECT
<< SAVE_SLOT_BITS
),
2054 SAVE_TYPE_PTR_PTR
= SAVE_POINTER
+ (SAVE_POINTER
<< SAVE_SLOT_BITS
),
2055 SAVE_TYPE_FUNCPTR_PTR_OBJ
2056 = SAVE_FUNCPOINTER
+ (SAVE_TYPE_PTR_OBJ
<< SAVE_SLOT_BITS
),
2058 /* This has an extra bit indicating it's raw memory. */
2059 SAVE_TYPE_MEMORY
= SAVE_TYPE_PTR_INT
+ (1 << (SAVE_TYPE_BITS
- 1))
2062 /* Special object used to hold a different values for later use.
2064 This is mostly used to package C integers and pointers to call
2065 record_unwind_protect when two or more values need to be saved.
2069 struct my_data *md = get_my_data ();
2070 ptrdiff_t mi = get_my_integer ();
2071 record_unwind_protect (my_unwind, make_save_ptr_int (md, mi));
2074 Lisp_Object my_unwind (Lisp_Object arg)
2076 struct my_data *md = XSAVE_POINTER (arg, 0);
2077 ptrdiff_t mi = XSAVE_INTEGER (arg, 1);
2081 If ENABLE_CHECKING is in effect, XSAVE_xxx macros do type checking of the
2082 saved objects and raise eassert if type of the saved object doesn't match
2083 the type which is extracted. In the example above, XSAVE_INTEGER (arg, 2)
2084 and XSAVE_OBJECT (arg, 0) are wrong because nothing was saved in slot 2 and
2085 slot 0 is a pointer. */
2087 typedef void (*voidfuncptr
) (void);
2089 struct Lisp_Save_Value
2091 ENUM_BF (Lisp_Misc_Type
) type
: 16; /* = Lisp_Misc_Save_Value */
2092 bool_bf gcmarkbit
: 1;
2093 unsigned spacer
: 32 - (16 + 1 + SAVE_TYPE_BITS
);
2095 /* V->data may hold up to SAVE_VALUE_SLOTS entries. The type of
2096 V's data entries are determined by V->save_type. E.g., if
2097 V->save_type == SAVE_TYPE_PTR_OBJ, V->data[0] is a pointer,
2098 V->data[1] is an integer, and V's other data entries are unused.
2100 If V->save_type == SAVE_TYPE_MEMORY, V->data[0].pointer is the address of
2101 a memory area containing V->data[1].integer potential Lisp_Objects. */
2102 ENUM_BF (Lisp_Save_Type
) save_type
: SAVE_TYPE_BITS
;
2105 voidfuncptr funcpointer
;
2108 } data
[SAVE_VALUE_SLOTS
];
2111 /* Return the type of V's Nth saved value. */
2113 save_type (struct Lisp_Save_Value
*v
, int n
)
2115 eassert (0 <= n
&& n
< SAVE_VALUE_SLOTS
);
2116 return (v
->save_type
>> (SAVE_SLOT_BITS
* n
) & ((1 << SAVE_SLOT_BITS
) - 1));
2119 /* Get and set the Nth saved pointer. */
2122 XSAVE_POINTER (Lisp_Object obj
, int n
)
2124 eassert (save_type (XSAVE_VALUE (obj
), n
) == SAVE_POINTER
);
2125 return XSAVE_VALUE (obj
)->data
[n
].pointer
;
2128 set_save_pointer (Lisp_Object obj
, int n
, void *val
)
2130 eassert (save_type (XSAVE_VALUE (obj
), n
) == SAVE_POINTER
);
2131 XSAVE_VALUE (obj
)->data
[n
].pointer
= val
;
2134 XSAVE_FUNCPOINTER (Lisp_Object obj
, int n
)
2136 eassert (save_type (XSAVE_VALUE (obj
), n
) == SAVE_FUNCPOINTER
);
2137 return XSAVE_VALUE (obj
)->data
[n
].funcpointer
;
2140 /* Likewise for the saved integer. */
2143 XSAVE_INTEGER (Lisp_Object obj
, int n
)
2145 eassert (save_type (XSAVE_VALUE (obj
), n
) == SAVE_INTEGER
);
2146 return XSAVE_VALUE (obj
)->data
[n
].integer
;
2149 set_save_integer (Lisp_Object obj
, int n
, ptrdiff_t val
)
2151 eassert (save_type (XSAVE_VALUE (obj
), n
) == SAVE_INTEGER
);
2152 XSAVE_VALUE (obj
)->data
[n
].integer
= val
;
2155 /* Extract Nth saved object. */
2158 XSAVE_OBJECT (Lisp_Object obj
, int n
)
2160 eassert (save_type (XSAVE_VALUE (obj
), n
) == SAVE_OBJECT
);
2161 return XSAVE_VALUE (obj
)->data
[n
].object
;
2164 /* A miscellaneous object, when it's on the free list. */
2167 ENUM_BF (Lisp_Misc_Type
) type
: 16; /* = Lisp_Misc_Free */
2168 bool_bf gcmarkbit
: 1;
2169 unsigned spacer
: 15;
2170 union Lisp_Misc
*chain
;
2173 /* To get the type field of a union Lisp_Misc, use XMISCTYPE.
2174 It uses one of these struct subtypes to get the type field. */
2178 struct Lisp_Misc_Any u_any
; /* Supertype of all Misc types. */
2179 struct Lisp_Free u_free
;
2180 struct Lisp_Marker u_marker
;
2181 struct Lisp_Overlay u_overlay
;
2182 struct Lisp_Save_Value u_save_value
;
2185 INLINE
union Lisp_Misc
*
2186 XMISC (Lisp_Object a
)
2188 return XUNTAG (a
, Lisp_Misc
);
2191 INLINE
struct Lisp_Misc_Any
*
2192 XMISCANY (Lisp_Object a
)
2194 eassert (MISCP (a
));
2195 return & XMISC (a
)->u_any
;
2198 INLINE
enum Lisp_Misc_Type
2199 XMISCTYPE (Lisp_Object a
)
2201 return XMISCANY (a
)->type
;
2204 INLINE
struct Lisp_Marker
*
2205 XMARKER (Lisp_Object a
)
2207 eassert (MARKERP (a
));
2208 return & XMISC (a
)->u_marker
;
2211 INLINE
struct Lisp_Overlay
*
2212 XOVERLAY (Lisp_Object a
)
2214 eassert (OVERLAYP (a
));
2215 return & XMISC (a
)->u_overlay
;
2218 INLINE
struct Lisp_Save_Value
*
2219 XSAVE_VALUE (Lisp_Object a
)
2221 eassert (SAVE_VALUEP (a
));
2222 return & XMISC (a
)->u_save_value
;
2225 /* Forwarding pointer to an int variable.
2226 This is allowed only in the value cell of a symbol,
2227 and it means that the symbol's value really lives in the
2228 specified int variable. */
2231 enum Lisp_Fwd_Type type
; /* = Lisp_Fwd_Int */
2235 /* Boolean forwarding pointer to an int variable.
2236 This is like Lisp_Intfwd except that the ostensible
2237 "value" of the symbol is t if the bool variable is true,
2238 nil if it is false. */
2241 enum Lisp_Fwd_Type type
; /* = Lisp_Fwd_Bool */
2245 /* Forwarding pointer to a Lisp_Object variable.
2246 This is allowed only in the value cell of a symbol,
2247 and it means that the symbol's value really lives in the
2248 specified variable. */
2251 enum Lisp_Fwd_Type type
; /* = Lisp_Fwd_Obj */
2252 Lisp_Object
*objvar
;
2255 /* Like Lisp_Objfwd except that value lives in a slot in the
2256 current buffer. Value is byte index of slot within buffer. */
2257 struct Lisp_Buffer_Objfwd
2259 enum Lisp_Fwd_Type type
; /* = Lisp_Fwd_Buffer_Obj */
2261 /* One of Qnil, Qintegerp, Qsymbolp, Qstringp, Qfloatp or Qnumberp. */
2262 Lisp_Object predicate
;
2265 /* struct Lisp_Buffer_Local_Value is used in a symbol value cell when
2266 the symbol has buffer-local or frame-local bindings. (Exception:
2267 some buffer-local variables are built-in, with their values stored
2268 in the buffer structure itself. They are handled differently,
2269 using struct Lisp_Buffer_Objfwd.)
2271 The `realvalue' slot holds the variable's current value, or a
2272 forwarding pointer to where that value is kept. This value is the
2273 one that corresponds to the loaded binding. To read or set the
2274 variable, you must first make sure the right binding is loaded;
2275 then you can access the value in (or through) `realvalue'.
2277 `buffer' and `frame' are the buffer and frame for which the loaded
2278 binding was found. If those have changed, to make sure the right
2279 binding is loaded it is necessary to find which binding goes with
2280 the current buffer and selected frame, then load it. To load it,
2281 first unload the previous binding, then copy the value of the new
2282 binding into `realvalue' (or through it). Also update
2283 LOADED-BINDING to point to the newly loaded binding.
2285 `local_if_set' indicates that merely setting the variable creates a
2286 local binding for the current buffer. Otherwise the latter, setting
2287 the variable does not do that; only make-local-variable does that. */
2289 struct Lisp_Buffer_Local_Value
2291 /* True means that merely setting the variable creates a local
2292 binding for the current buffer. */
2293 bool_bf local_if_set
: 1;
2294 /* True means this variable can have frame-local bindings, otherwise, it is
2295 can have buffer-local bindings. The two cannot be combined. */
2296 bool_bf frame_local
: 1;
2297 /* True means that the binding now loaded was found.
2298 Presumably equivalent to (defcell!=valcell). */
2300 /* If non-NULL, a forwarding to the C var where it should also be set. */
2301 union Lisp_Fwd
*fwd
; /* Should never be (Buffer|Kboard)_Objfwd. */
2302 /* The buffer or frame for which the loaded binding was found. */
2304 /* A cons cell that holds the default value. It has the form
2305 (SYMBOL . DEFAULT-VALUE). */
2306 Lisp_Object defcell
;
2307 /* The cons cell from `where's parameter alist.
2308 It always has the form (SYMBOL . VALUE)
2309 Note that if `forward' is non-nil, VALUE may be out of date.
2310 Also if the currently loaded binding is the default binding, then
2311 this is `eq'ual to defcell. */
2312 Lisp_Object valcell
;
2315 /* Like Lisp_Objfwd except that value lives in a slot in the
2317 struct Lisp_Kboard_Objfwd
2319 enum Lisp_Fwd_Type type
; /* = Lisp_Fwd_Kboard_Obj */
2325 struct Lisp_Intfwd u_intfwd
;
2326 struct Lisp_Boolfwd u_boolfwd
;
2327 struct Lisp_Objfwd u_objfwd
;
2328 struct Lisp_Buffer_Objfwd u_buffer_objfwd
;
2329 struct Lisp_Kboard_Objfwd u_kboard_objfwd
;
2332 INLINE
enum Lisp_Fwd_Type
2333 XFWDTYPE (union Lisp_Fwd
*a
)
2335 return a
->u_intfwd
.type
;
2338 INLINE
struct Lisp_Buffer_Objfwd
*
2339 XBUFFER_OBJFWD (union Lisp_Fwd
*a
)
2341 eassert (BUFFER_OBJFWDP (a
));
2342 return &a
->u_buffer_objfwd
;
2345 /* Lisp floating point type. */
2351 struct Lisp_Float
*chain
;
2356 XFLOAT_DATA (Lisp_Object f
)
2358 return XFLOAT (f
)->u
.data
;
2361 /* Most hosts nowadays use IEEE floating point, so they use IEC 60559
2362 representations, have infinities and NaNs, and do not trap on
2363 exceptions. Define IEEE_FLOATING_POINT if this host is one of the
2364 typical ones. The C11 macro __STDC_IEC_559__ is close to what is
2365 wanted here, but is not quite right because Emacs does not require
2366 all the features of C11 Annex F (and does not require C11 at all,
2367 for that matter). */
2371 = (FLT_RADIX
== 2 && FLT_MANT_DIG
== 24
2372 && FLT_MIN_EXP
== -125 && FLT_MAX_EXP
== 128)
2375 /* A character, declared with the following typedef, is a member
2376 of some character set associated with the current buffer. */
2377 #ifndef _UCHAR_T /* Protect against something in ctab.h on AIX. */
2379 typedef unsigned char UCHAR
;
2382 /* Meanings of slots in a Lisp_Compiled: */
2386 COMPILED_ARGLIST
= 0,
2387 COMPILED_BYTECODE
= 1,
2388 COMPILED_CONSTANTS
= 2,
2389 COMPILED_STACK_DEPTH
= 3,
2390 COMPILED_DOC_STRING
= 4,
2391 COMPILED_INTERACTIVE
= 5
2394 /* Flag bits in a character. These also get used in termhooks.h.
2395 Richard Stallman <rms@gnu.ai.mit.edu> thinks that MULE
2396 (MUlti-Lingual Emacs) might need 22 bits for the character value
2397 itself, so we probably shouldn't use any bits lower than 0x0400000. */
2400 CHAR_ALT
= 0x0400000,
2401 CHAR_SUPER
= 0x0800000,
2402 CHAR_HYPER
= 0x1000000,
2403 CHAR_SHIFT
= 0x2000000,
2404 CHAR_CTL
= 0x4000000,
2405 CHAR_META
= 0x8000000,
2407 CHAR_MODIFIER_MASK
=
2408 CHAR_ALT
| CHAR_SUPER
| CHAR_HYPER
| CHAR_SHIFT
| CHAR_CTL
| CHAR_META
,
2410 /* Actually, the current Emacs uses 22 bits for the character value
2415 /* Data type checking. */
2417 LISP_MACRO_DEFUN (NILP
, bool, (Lisp_Object x
), (x
))
2420 NUMBERP (Lisp_Object x
)
2422 return INTEGERP (x
) || FLOATP (x
);
2425 NATNUMP (Lisp_Object x
)
2427 return INTEGERP (x
) && 0 <= XINT (x
);
2431 RANGED_INTEGERP (intmax_t lo
, Lisp_Object x
, intmax_t hi
)
2433 return INTEGERP (x
) && lo
<= XINT (x
) && XINT (x
) <= hi
;
2436 #define TYPE_RANGED_INTEGERP(type, x) \
2438 && (TYPE_SIGNED (type) ? TYPE_MINIMUM (type) <= XINT (x) : 0 <= XINT (x)) \
2439 && XINT (x) <= TYPE_MAXIMUM (type))
2441 LISP_MACRO_DEFUN (CONSP
, bool, (Lisp_Object x
), (x
))
2442 LISP_MACRO_DEFUN (FLOATP
, bool, (Lisp_Object x
), (x
))
2443 LISP_MACRO_DEFUN (MISCP
, bool, (Lisp_Object x
), (x
))
2444 LISP_MACRO_DEFUN (SYMBOLP
, bool, (Lisp_Object x
), (x
))
2445 LISP_MACRO_DEFUN (INTEGERP
, bool, (Lisp_Object x
), (x
))
2446 LISP_MACRO_DEFUN (VECTORLIKEP
, bool, (Lisp_Object x
), (x
))
2447 LISP_MACRO_DEFUN (MARKERP
, bool, (Lisp_Object x
), (x
))
2450 STRINGP (Lisp_Object x
)
2452 return XTYPE (x
) == Lisp_String
;
2455 VECTORP (Lisp_Object x
)
2457 return VECTORLIKEP (x
) && ! (ASIZE (x
) & PSEUDOVECTOR_FLAG
);
2460 OVERLAYP (Lisp_Object x
)
2462 return MISCP (x
) && XMISCTYPE (x
) == Lisp_Misc_Overlay
;
2465 SAVE_VALUEP (Lisp_Object x
)
2467 return MISCP (x
) && XMISCTYPE (x
) == Lisp_Misc_Save_Value
;
2471 AUTOLOADP (Lisp_Object x
)
2473 return CONSP (x
) && EQ (Qautoload
, XCAR (x
));
2477 BUFFER_OBJFWDP (union Lisp_Fwd
*a
)
2479 return XFWDTYPE (a
) == Lisp_Fwd_Buffer_Obj
;
2483 PSEUDOVECTOR_TYPEP (struct vectorlike_header
*a
, int code
)
2485 return ((a
->size
& (PSEUDOVECTOR_FLAG
| PVEC_TYPE_MASK
))
2486 == (PSEUDOVECTOR_FLAG
| (code
<< PSEUDOVECTOR_AREA_BITS
)));
2489 /* True if A is a pseudovector whose code is CODE. */
2491 PSEUDOVECTORP (Lisp_Object a
, int code
)
2493 if (! VECTORLIKEP (a
))
2497 /* Converting to struct vectorlike_header * avoids aliasing issues. */
2498 struct vectorlike_header
*h
= XUNTAG (a
, Lisp_Vectorlike
);
2499 return PSEUDOVECTOR_TYPEP (h
, code
);
2504 /* Test for specific pseudovector types. */
2507 WINDOW_CONFIGURATIONP (Lisp_Object a
)
2509 return PSEUDOVECTORP (a
, PVEC_WINDOW_CONFIGURATION
);
2513 PROCESSP (Lisp_Object a
)
2515 return PSEUDOVECTORP (a
, PVEC_PROCESS
);
2519 WINDOWP (Lisp_Object a
)
2521 return PSEUDOVECTORP (a
, PVEC_WINDOW
);
2525 TERMINALP (Lisp_Object a
)
2527 return PSEUDOVECTORP (a
, PVEC_TERMINAL
);
2531 SUBRP (Lisp_Object a
)
2533 return PSEUDOVECTORP (a
, PVEC_SUBR
);
2537 COMPILEDP (Lisp_Object a
)
2539 return PSEUDOVECTORP (a
, PVEC_COMPILED
);
2543 BUFFERP (Lisp_Object a
)
2545 return PSEUDOVECTORP (a
, PVEC_BUFFER
);
2549 CHAR_TABLE_P (Lisp_Object a
)
2551 return PSEUDOVECTORP (a
, PVEC_CHAR_TABLE
);
2555 SUB_CHAR_TABLE_P (Lisp_Object a
)
2557 return PSEUDOVECTORP (a
, PVEC_SUB_CHAR_TABLE
);
2561 BOOL_VECTOR_P (Lisp_Object a
)
2563 return PSEUDOVECTORP (a
, PVEC_BOOL_VECTOR
);
2567 FRAMEP (Lisp_Object a
)
2569 return PSEUDOVECTORP (a
, PVEC_FRAME
);
2572 /* Test for image (image . spec) */
2574 IMAGEP (Lisp_Object x
)
2576 return CONSP (x
) && EQ (XCAR (x
), Qimage
);
2581 ARRAYP (Lisp_Object x
)
2583 return VECTORP (x
) || STRINGP (x
) || CHAR_TABLE_P (x
) || BOOL_VECTOR_P (x
);
2587 CHECK_LIST (Lisp_Object x
)
2589 CHECK_TYPE (CONSP (x
) || NILP (x
), Qlistp
, x
);
2592 LISP_MACRO_DEFUN_VOID (CHECK_LIST_CONS
, (Lisp_Object x
, Lisp_Object y
), (x
, y
))
2593 LISP_MACRO_DEFUN_VOID (CHECK_SYMBOL
, (Lisp_Object x
), (x
))
2594 LISP_MACRO_DEFUN_VOID (CHECK_NUMBER
, (Lisp_Object x
), (x
))
2597 CHECK_STRING (Lisp_Object x
)
2599 CHECK_TYPE (STRINGP (x
), Qstringp
, x
);
2602 CHECK_STRING_CAR (Lisp_Object x
)
2604 CHECK_TYPE (STRINGP (XCAR (x
)), Qstringp
, XCAR (x
));
2607 CHECK_CONS (Lisp_Object x
)
2609 CHECK_TYPE (CONSP (x
), Qconsp
, x
);
2612 CHECK_VECTOR (Lisp_Object x
)
2614 CHECK_TYPE (VECTORP (x
), Qvectorp
, x
);
2617 CHECK_BOOL_VECTOR (Lisp_Object x
)
2619 CHECK_TYPE (BOOL_VECTOR_P (x
), Qbool_vector_p
, x
);
2621 /* This is a bit special because we always need size afterwards. */
2623 CHECK_VECTOR_OR_STRING (Lisp_Object x
)
2629 wrong_type_argument (Qarrayp
, x
);
2632 CHECK_ARRAY (Lisp_Object x
, Lisp_Object predicate
)
2634 CHECK_TYPE (ARRAYP (x
), predicate
, x
);
2637 CHECK_BUFFER (Lisp_Object x
)
2639 CHECK_TYPE (BUFFERP (x
), Qbufferp
, x
);
2642 CHECK_WINDOW (Lisp_Object x
)
2644 CHECK_TYPE (WINDOWP (x
), Qwindowp
, x
);
2648 CHECK_PROCESS (Lisp_Object x
)
2650 CHECK_TYPE (PROCESSP (x
), Qprocessp
, x
);
2654 CHECK_NATNUM (Lisp_Object x
)
2656 CHECK_TYPE (NATNUMP (x
), Qwholenump
, x
);
2659 #define CHECK_RANGED_INTEGER(x, lo, hi) \
2662 if (! ((lo) <= XINT (x) && XINT (x) <= (hi))) \
2663 args_out_of_range_3 \
2665 make_number ((lo) < 0 && (lo) < MOST_NEGATIVE_FIXNUM \
2666 ? MOST_NEGATIVE_FIXNUM \
2668 make_number (min (hi, MOST_POSITIVE_FIXNUM))); \
2670 #define CHECK_TYPE_RANGED_INTEGER(type, x) \
2672 if (TYPE_SIGNED (type)) \
2673 CHECK_RANGED_INTEGER (x, TYPE_MINIMUM (type), TYPE_MAXIMUM (type)); \
2675 CHECK_RANGED_INTEGER (x, 0, TYPE_MAXIMUM (type)); \
2678 #define CHECK_NUMBER_COERCE_MARKER(x) \
2680 if (MARKERP ((x))) \
2681 XSETFASTINT (x, marker_position (x)); \
2683 CHECK_TYPE (INTEGERP (x), Qinteger_or_marker_p, x); \
2687 XFLOATINT (Lisp_Object n
)
2689 return extract_float (n
);
2693 CHECK_NUMBER_OR_FLOAT (Lisp_Object x
)
2695 CHECK_TYPE (FLOATP (x
) || INTEGERP (x
), Qnumberp
, x
);
2698 #define CHECK_NUMBER_OR_FLOAT_COERCE_MARKER(x) \
2701 XSETFASTINT (x, marker_position (x)); \
2703 CHECK_TYPE (INTEGERP (x) || FLOATP (x), Qnumber_or_marker_p, x); \
2706 /* Since we can't assign directly to the CAR or CDR fields of a cons
2707 cell, use these when checking that those fields contain numbers. */
2709 CHECK_NUMBER_CAR (Lisp_Object x
)
2711 Lisp_Object tmp
= XCAR (x
);
2717 CHECK_NUMBER_CDR (Lisp_Object x
)
2719 Lisp_Object tmp
= XCDR (x
);
2724 /* Define a built-in function for calling from Lisp.
2725 `lname' should be the name to give the function in Lisp,
2726 as a null-terminated C string.
2727 `fnname' should be the name of the function in C.
2728 By convention, it starts with F.
2729 `sname' should be the name for the C constant structure
2730 that records information on this function for internal use.
2731 By convention, it should be the same as `fnname' but with S instead of F.
2732 It's too bad that C macros can't compute this from `fnname'.
2733 `minargs' should be a number, the minimum number of arguments allowed.
2734 `maxargs' should be a number, the maximum number of arguments allowed,
2735 or else MANY or UNEVALLED.
2736 MANY means pass a vector of evaluated arguments,
2737 in the form of an integer number-of-arguments
2738 followed by the address of a vector of Lisp_Objects
2739 which contains the argument values.
2740 UNEVALLED means pass the list of unevaluated arguments
2741 `intspec' says how interactive arguments are to be fetched.
2742 If the string starts with a `(', `intspec' is evaluated and the resulting
2743 list is the list of arguments.
2744 If it's a string that doesn't start with `(', the value should follow
2745 the one of the doc string for `interactive'.
2746 A null string means call interactively with no arguments.
2747 `doc' is documentation for the user. */
2749 /* This version of DEFUN declares a function prototype with the right
2750 arguments, so we can catch errors with maxargs at compile-time. */
2752 #define DEFUN(lname, fnname, sname, minargs, maxargs, intspec, doc) \
2753 Lisp_Object fnname DEFUN_ARGS_ ## maxargs ; \
2754 static struct Lisp_Subr alignas (GCALIGNMENT) sname = \
2755 { { (PVEC_SUBR << PSEUDOVECTOR_AREA_BITS) \
2756 | (sizeof (struct Lisp_Subr) / sizeof (EMACS_INT)) }, \
2757 { (Lisp_Object (__cdecl *)(void))fnname }, \
2758 minargs, maxargs, lname, intspec, 0}; \
2760 #else /* not _MSC_VER */
2761 #define DEFUN(lname, fnname, sname, minargs, maxargs, intspec, doc) \
2762 static struct Lisp_Subr alignas (GCALIGNMENT) sname = \
2763 { { PVEC_SUBR << PSEUDOVECTOR_AREA_BITS }, \
2764 { .a ## maxargs = fnname }, \
2765 minargs, maxargs, lname, intspec, 0}; \
2769 /* True if OBJ is a Lisp function. */
2771 FUNCTIONP (Lisp_Object obj
)
2773 return functionp (obj
);
2777 is how we define the symbol for function `name' at start-up time. */
2778 extern void defsubr (struct Lisp_Subr
*);
2786 extern void defvar_lisp (struct Lisp_Objfwd
*, const char *, Lisp_Object
*);
2787 extern void defvar_lisp_nopro (struct Lisp_Objfwd
*, const char *, Lisp_Object
*);
2788 extern void defvar_bool (struct Lisp_Boolfwd
*, const char *, bool *);
2789 extern void defvar_int (struct Lisp_Intfwd
*, const char *, EMACS_INT
*);
2790 extern void defvar_kboard (struct Lisp_Kboard_Objfwd
*, const char *, int);
2792 /* Macros we use to define forwarded Lisp variables.
2793 These are used in the syms_of_FILENAME functions.
2795 An ordinary (not in buffer_defaults, per-buffer, or per-keyboard)
2796 lisp variable is actually a field in `struct emacs_globals'. The
2797 field's name begins with "f_", which is a convention enforced by
2798 these macros. Each such global has a corresponding #define in
2799 globals.h; the plain name should be used in the code.
2801 E.g., the global "cons_cells_consed" is declared as "int
2802 f_cons_cells_consed" in globals.h, but there is a define:
2804 #define cons_cells_consed globals.f_cons_cells_consed
2806 All C code uses the `cons_cells_consed' name. This is all done
2807 this way to support indirection for multi-threaded Emacs. */
2809 #define DEFVAR_LISP(lname, vname, doc) \
2811 static struct Lisp_Objfwd o_fwd; \
2812 defvar_lisp (&o_fwd, lname, &globals.f_ ## vname); \
2814 #define DEFVAR_LISP_NOPRO(lname, vname, doc) \
2816 static struct Lisp_Objfwd o_fwd; \
2817 defvar_lisp_nopro (&o_fwd, lname, &globals.f_ ## vname); \
2819 #define DEFVAR_BOOL(lname, vname, doc) \
2821 static struct Lisp_Boolfwd b_fwd; \
2822 defvar_bool (&b_fwd, lname, &globals.f_ ## vname); \
2824 #define DEFVAR_INT(lname, vname, doc) \
2826 static struct Lisp_Intfwd i_fwd; \
2827 defvar_int (&i_fwd, lname, &globals.f_ ## vname); \
2830 #define DEFVAR_BUFFER_DEFAULTS(lname, vname, doc) \
2832 static struct Lisp_Objfwd o_fwd; \
2833 defvar_lisp_nopro (&o_fwd, lname, &BVAR (&buffer_defaults, vname)); \
2836 #define DEFVAR_KBOARD(lname, vname, doc) \
2838 static struct Lisp_Kboard_Objfwd ko_fwd; \
2839 defvar_kboard (&ko_fwd, lname, offsetof (KBOARD, vname ## _)); \
2842 /* Save and restore the instruction and environment pointers,
2843 without affecting the signal mask. */
2846 typedef jmp_buf sys_jmp_buf
;
2847 # define sys_setjmp(j) _setjmp (j)
2848 # define sys_longjmp(j, v) _longjmp (j, v)
2849 #elif defined HAVE_SIGSETJMP
2850 typedef sigjmp_buf sys_jmp_buf
;
2851 # define sys_setjmp(j) sigsetjmp (j, 0)
2852 # define sys_longjmp(j, v) siglongjmp (j, v)
2854 /* A platform that uses neither _longjmp nor siglongjmp; assume
2855 longjmp does not affect the sigmask. */
2856 typedef jmp_buf sys_jmp_buf
;
2857 # define sys_setjmp(j) setjmp (j)
2858 # define sys_longjmp(j, v) longjmp (j, v)
2862 /* Elisp uses several stacks:
2864 - the bytecode stack: used internally by the bytecode interpreter.
2865 Allocated from the C stack.
2866 - The specpdl stack: keeps track of active unwind-protect and
2867 dynamic-let-bindings. Allocated from the `specpdl' array, a manually
2869 - The handler stack: keeps track of active catch tags and condition-case
2870 handlers. Allocated in a manually managed stack implemented by a
2871 doubly-linked list allocated via xmalloc and never freed. */
2873 /* Structure for recording Lisp call stack for backtrace purposes. */
2875 /* The special binding stack holds the outer values of variables while
2876 they are bound by a function application or a let form, stores the
2877 code to be executed for unwind-protect forms.
2879 NOTE: The specbinding union is defined here, because SPECPDL_INDEX is
2880 used all over the place, needs to be fast, and needs to know the size of
2881 union specbinding. But only eval.c should access it. */
2884 SPECPDL_UNWIND
, /* An unwind_protect function on Lisp_Object. */
2885 SPECPDL_UNWIND_PTR
, /* Likewise, on void *. */
2886 SPECPDL_UNWIND_INT
, /* Likewise, on int. */
2887 SPECPDL_UNWIND_VOID
, /* Likewise, with no arg. */
2888 SPECPDL_BACKTRACE
, /* An element of the backtrace. */
2889 SPECPDL_LET
, /* A plain and simple dynamic let-binding. */
2890 /* Tags greater than SPECPDL_LET must be "subkinds" of LET. */
2891 SPECPDL_LET_LOCAL
, /* A buffer-local let-binding. */
2892 SPECPDL_LET_DEFAULT
/* A global binding for a localized var. */
2897 ENUM_BF (specbind_tag
) kind
: CHAR_BIT
;
2899 ENUM_BF (specbind_tag
) kind
: CHAR_BIT
;
2900 void (*func
) (Lisp_Object
);
2904 ENUM_BF (specbind_tag
) kind
: CHAR_BIT
;
2905 void (*func
) (void *);
2909 ENUM_BF (specbind_tag
) kind
: CHAR_BIT
;
2914 ENUM_BF (specbind_tag
) kind
: CHAR_BIT
;
2915 void (*func
) (void);
2918 ENUM_BF (specbind_tag
) kind
: CHAR_BIT
;
2919 /* `where' is not used in the case of SPECPDL_LET. */
2920 Lisp_Object symbol
, old_value
, where
;
2923 ENUM_BF (specbind_tag
) kind
: CHAR_BIT
;
2924 bool_bf debug_on_exit
: 1;
2925 Lisp_Object function
;
2931 extern union specbinding
*specpdl
;
2932 extern union specbinding
*specpdl_ptr
;
2933 extern ptrdiff_t specpdl_size
;
2936 SPECPDL_INDEX (void)
2938 return specpdl_ptr
- specpdl
;
2941 /* This structure helps implement the `catch/throw' and `condition-case/signal'
2942 control structures. A struct handler contains all the information needed to
2943 restore the state of the interpreter after a non-local jump.
2945 handler structures are chained together in a doubly linked list; the `next'
2946 member points to the next outer catchtag and the `nextfree' member points in
2947 the other direction to the next inner element (which is typically the next
2948 free element since we mostly use it on the deepest handler).
2950 A call like (throw TAG VAL) searches for a catchtag whose `tag_or_ch'
2951 member is TAG, and then unbinds to it. The `val' member is used to
2952 hold VAL while the stack is unwound; `val' is returned as the value
2955 All the other members are concerned with restoring the interpreter
2958 Members are volatile if their values need to survive _longjmp when
2959 a 'struct handler' is a local variable. */
2961 enum handlertype
{ CATCHER
, CONDITION_CASE
};
2965 enum handlertype type
;
2966 Lisp_Object tag_or_ch
;
2968 struct handler
*next
;
2969 struct handler
*nextfree
;
2971 /* The bytecode interpreter can have several handlers active at the same
2972 time, so when we longjmp to one of them, it needs to know which handler
2973 this was and what was the corresponding internal state. This is stored
2974 here, and when we longjmp we make sure that handlerlist points to the
2976 Lisp_Object
*bytecode_top
;
2979 /* Most global vars are reset to their value via the specpdl mechanism,
2980 but a few others are handled by storing their value here. */
2981 #if true /* GC_MARK_STACK == GC_MAKE_GCPROS_NOOPS, but defined later. */
2982 struct gcpro
*gcpro
;
2985 EMACS_INT lisp_eval_depth
;
2987 int poll_suppress_count
;
2988 int interrupt_input_blocked
;
2989 struct byte_stack
*byte_stack
;
2992 /* Fill in the components of c, and put it on the list. */
2993 #define PUSH_HANDLER(c, tag_ch_val, handlertype) \
2994 if (handlerlist->nextfree) \
2995 (c) = handlerlist->nextfree; \
2998 (c) = xmalloc (sizeof (struct handler)); \
2999 (c)->nextfree = NULL; \
3000 handlerlist->nextfree = (c); \
3002 (c)->type = (handlertype); \
3003 (c)->tag_or_ch = (tag_ch_val); \
3005 (c)->next = handlerlist; \
3006 (c)->lisp_eval_depth = lisp_eval_depth; \
3007 (c)->pdlcount = SPECPDL_INDEX (); \
3008 (c)->poll_suppress_count = poll_suppress_count; \
3009 (c)->interrupt_input_blocked = interrupt_input_blocked;\
3010 (c)->gcpro = gcprolist; \
3011 (c)->byte_stack = byte_stack_list; \
3015 extern Lisp_Object memory_signal_data
;
3017 /* An address near the bottom of the stack.
3018 Tells GC how to save a copy of the stack. */
3019 extern char *stack_bottom
;
3021 /* Check quit-flag and quit if it is non-nil.
3022 Typing C-g does not directly cause a quit; it only sets Vquit_flag.
3023 So the program needs to do QUIT at times when it is safe to quit.
3024 Every loop that might run for a long time or might not exit
3025 ought to do QUIT at least once, at a safe place.
3026 Unless that is impossible, of course.
3027 But it is very desirable to avoid creating loops where QUIT is impossible.
3029 Exception: if you set immediate_quit to true,
3030 then the handler that responds to the C-g does the quit itself.
3031 This is a good thing to do around a loop that has no side effects
3032 and (in particular) cannot call arbitrary Lisp code.
3034 If quit-flag is set to `kill-emacs' the SIGINT handler has received
3035 a request to exit Emacs when it is safe to do. */
3037 extern void process_pending_signals (void);
3038 extern bool volatile pending_signals
;
3040 extern void process_quit_flag (void);
3043 if (!NILP (Vquit_flag) && NILP (Vinhibit_quit)) \
3044 process_quit_flag (); \
3045 else if (pending_signals) \
3046 process_pending_signals (); \
3050 /* True if ought to quit now. */
3052 #define QUITP (!NILP (Vquit_flag) && NILP (Vinhibit_quit))
3054 extern Lisp_Object Vascii_downcase_table
;
3055 extern Lisp_Object Vascii_canon_table
;
3057 /* Structure for recording stack slots that need marking. */
3059 /* This is a chain of structures, each of which points at a Lisp_Object
3060 variable whose value should be marked in garbage collection.
3061 Normally every link of the chain is an automatic variable of a function,
3062 and its `val' points to some argument or local variable of the function.
3063 On exit to the function, the chain is set back to the value it had on entry.
3064 This way, no link remains in the chain when the stack frame containing the
3067 Every function that can call Feval must protect in this fashion all
3068 Lisp_Object variables whose contents will be used again. */
3070 extern struct gcpro
*gcprolist
;
3076 /* Address of first protected variable. */
3077 volatile Lisp_Object
*var
;
3079 /* Number of consecutive protected variables. */
3083 /* File name where this record is used. */
3086 /* Line number in this file. */
3089 /* Index in the local chain of records. */
3092 /* Nesting level. */
3097 /* Values of GC_MARK_STACK during compilation:
3099 0 Use GCPRO as before
3100 1 Do the real thing, make GCPROs and UNGCPRO no-ops.
3101 2 Mark the stack, and check that everything GCPRO'd is
3103 3 Mark using GCPRO's, mark stack last, and count how many
3104 dead objects are kept alive.
3106 Formerly, method 0 was used. Currently, method 1 is used unless
3107 otherwise specified by hand when building, e.g.,
3108 "make CPPFLAGS='-DGC_MARK_STACK=GC_USE_GCPROS_AS_BEFORE'".
3109 Methods 2 and 3 are present mainly to debug the transition from 0 to 1. */
3111 #define GC_USE_GCPROS_AS_BEFORE 0
3112 #define GC_MAKE_GCPROS_NOOPS 1
3113 #define GC_MARK_STACK_CHECK_GCPROS 2
3114 #define GC_USE_GCPROS_CHECK_ZOMBIES 3
3116 #ifndef GC_MARK_STACK
3117 #define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS
3120 /* Whether we do the stack marking manually. */
3121 #define BYTE_MARK_STACK !(GC_MARK_STACK == GC_MAKE_GCPROS_NOOPS \
3122 || GC_MARK_STACK == GC_MARK_STACK_CHECK_GCPROS)
3125 #if GC_MARK_STACK == GC_MAKE_GCPROS_NOOPS
3127 /* Do something silly with gcproN vars just so gcc shuts up. */
3128 /* You get warnings from MIPSPro... */
3130 #define GCPRO1(varname) ((void) gcpro1)
3131 #define GCPRO2(varname1, varname2) ((void) gcpro2, (void) gcpro1)
3132 #define GCPRO3(varname1, varname2, varname3) \
3133 ((void) gcpro3, (void) gcpro2, (void) gcpro1)
3134 #define GCPRO4(varname1, varname2, varname3, varname4) \
3135 ((void) gcpro4, (void) gcpro3, (void) gcpro2, (void) gcpro1)
3136 #define GCPRO5(varname1, varname2, varname3, varname4, varname5) \
3137 ((void) gcpro5, (void) gcpro4, (void) gcpro3, (void) gcpro2, (void) gcpro1)
3138 #define GCPRO6(varname1, varname2, varname3, varname4, varname5, varname6) \
3139 ((void) gcpro6, (void) gcpro5, (void) gcpro4, (void) gcpro3, (void) gcpro2, \
3141 #define GCPRO7(a, b, c, d, e, f, g) (GCPRO6 (a, b, c, d, e, f), (void) gcpro7)
3142 #define UNGCPRO ((void) 0)
3144 #else /* GC_MARK_STACK != GC_MAKE_GCPROS_NOOPS */
3149 { gcpro1.next = gcprolist; gcpro1.var = &(a); gcpro1.nvars = 1; \
3150 gcprolist = &gcpro1; }
3152 #define GCPRO2(a, b) \
3153 { gcpro1.next = gcprolist; gcpro1.var = &(a); gcpro1.nvars = 1; \
3154 gcpro2.next = &gcpro1; gcpro2.var = &(b); gcpro2.nvars = 1; \
3155 gcprolist = &gcpro2; }
3157 #define GCPRO3(a, b, c) \
3158 { gcpro1.next = gcprolist; gcpro1.var = &(a); gcpro1.nvars = 1; \
3159 gcpro2.next = &gcpro1; gcpro2.var = &(b); gcpro2.nvars = 1; \
3160 gcpro3.next = &gcpro2; gcpro3.var = &(c); gcpro3.nvars = 1; \
3161 gcprolist = &gcpro3; }
3163 #define GCPRO4(a, b, c, d) \
3164 { gcpro1.next = gcprolist; gcpro1.var = &(a); gcpro1.nvars = 1; \
3165 gcpro2.next = &gcpro1; gcpro2.var = &(b); gcpro2.nvars = 1; \
3166 gcpro3.next = &gcpro2; gcpro3.var = &(c); gcpro3.nvars = 1; \
3167 gcpro4.next = &gcpro3; gcpro4.var = &(d); gcpro4.nvars = 1; \
3168 gcprolist = &gcpro4; }
3170 #define GCPRO5(a, b, c, d, e) \
3171 { gcpro1.next = gcprolist; gcpro1.var = &(a); gcpro1.nvars = 1; \
3172 gcpro2.next = &gcpro1; gcpro2.var = &(b); gcpro2.nvars = 1; \
3173 gcpro3.next = &gcpro2; gcpro3.var = &(c); gcpro3.nvars = 1; \
3174 gcpro4.next = &gcpro3; gcpro4.var = &(d); gcpro4.nvars = 1; \
3175 gcpro5.next = &gcpro4; gcpro5.var = &(e); gcpro5.nvars = 1; \
3176 gcprolist = &gcpro5; }
3178 #define GCPRO6(a, b, c, d, e, f) \
3179 { gcpro1.next = gcprolist; gcpro1.var = &(a); gcpro1.nvars = 1; \
3180 gcpro2.next = &gcpro1; gcpro2.var = &(b); gcpro2.nvars = 1; \
3181 gcpro3.next = &gcpro2; gcpro3.var = &(c); gcpro3.nvars = 1; \
3182 gcpro4.next = &gcpro3; gcpro4.var = &(d); gcpro4.nvars = 1; \
3183 gcpro5.next = &gcpro4; gcpro5.var = &(e); gcpro5.nvars = 1; \
3184 gcpro6.next = &gcpro5; gcpro6.var = &(f); gcpro6.nvars = 1; \
3185 gcprolist = &gcpro6; }
3187 #define GCPRO7(a, b, c, d, e, f, g) \
3188 { gcpro1.next = gcprolist; gcpro1.var = &(a); gcpro1.nvars = 1; \
3189 gcpro2.next = &gcpro1; gcpro2.var = &(b); gcpro2.nvars = 1; \
3190 gcpro3.next = &gcpro2; gcpro3.var = &(c); gcpro3.nvars = 1; \
3191 gcpro4.next = &gcpro3; gcpro4.var = &(d); gcpro4.nvars = 1; \
3192 gcpro5.next = &gcpro4; gcpro5.var = &(e); gcpro5.nvars = 1; \
3193 gcpro6.next = &gcpro5; gcpro6.var = &(f); gcpro6.nvars = 1; \
3194 gcpro7.next = &gcpro6; gcpro7.var = &(g); gcpro7.nvars = 1; \
3195 gcprolist = &gcpro7; }
3197 #define UNGCPRO (gcprolist = gcpro1.next)
3199 #else /* !DEBUG_GCPRO */
3201 extern int gcpro_level
;
3204 { gcpro1.next = gcprolist; gcpro1.var = &(a); gcpro1.nvars = 1; \
3205 gcpro1.name = __FILE__; gcpro1.lineno = __LINE__; gcpro1.idx = 1; \
3206 gcpro1.level = gcpro_level++; \
3207 gcprolist = &gcpro1; }
3209 #define GCPRO2(a, b) \
3210 { gcpro1.next = gcprolist; gcpro1.var = &(a); gcpro1.nvars = 1; \
3211 gcpro1.name = __FILE__; gcpro1.lineno = __LINE__; gcpro1.idx = 1; \
3212 gcpro1.level = gcpro_level; \
3213 gcpro2.next = &gcpro1; gcpro2.var = &(b); gcpro2.nvars = 1; \
3214 gcpro2.name = __FILE__; gcpro2.lineno = __LINE__; gcpro2.idx = 2; \
3215 gcpro2.level = gcpro_level++; \
3216 gcprolist = &gcpro2; }
3218 #define GCPRO3(a, b, c) \
3219 { gcpro1.next = gcprolist; gcpro1.var = &(a); gcpro1.nvars = 1; \
3220 gcpro1.name = __FILE__; gcpro1.lineno = __LINE__; gcpro1.idx = 1; \
3221 gcpro1.level = gcpro_level; \
3222 gcpro2.next = &gcpro1; gcpro2.var = &(b); gcpro2.nvars = 1; \
3223 gcpro2.name = __FILE__; gcpro2.lineno = __LINE__; gcpro2.idx = 2; \
3224 gcpro3.next = &gcpro2; gcpro3.var = &(c); gcpro3.nvars = 1; \
3225 gcpro3.name = __FILE__; gcpro3.lineno = __LINE__; gcpro3.idx = 3; \
3226 gcpro3.level = gcpro_level++; \
3227 gcprolist = &gcpro3; }
3229 #define GCPRO4(a, b, c, d) \
3230 { gcpro1.next = gcprolist; gcpro1.var = &(a); gcpro1.nvars = 1; \
3231 gcpro1.name = __FILE__; gcpro1.lineno = __LINE__; gcpro1.idx = 1; \
3232 gcpro1.level = gcpro_level; \
3233 gcpro2.next = &gcpro1; gcpro2.var = &(b); gcpro2.nvars = 1; \
3234 gcpro2.name = __FILE__; gcpro2.lineno = __LINE__; gcpro2.idx = 2; \
3235 gcpro3.next = &gcpro2; gcpro3.var = &(c); gcpro3.nvars = 1; \
3236 gcpro3.name = __FILE__; gcpro3.lineno = __LINE__; gcpro3.idx = 3; \
3237 gcpro4.next = &gcpro3; gcpro4.var = &(d); gcpro4.nvars = 1; \
3238 gcpro4.name = __FILE__; gcpro4.lineno = __LINE__; gcpro4.idx = 4; \
3239 gcpro4.level = gcpro_level++; \
3240 gcprolist = &gcpro4; }
3242 #define GCPRO5(a, b, c, d, e) \
3243 { gcpro1.next = gcprolist; gcpro1.var = &(a); gcpro1.nvars = 1; \
3244 gcpro1.name = __FILE__; gcpro1.lineno = __LINE__; gcpro1.idx = 1; \
3245 gcpro1.level = gcpro_level; \
3246 gcpro2.next = &gcpro1; gcpro2.var = &(b); gcpro2.nvars = 1; \
3247 gcpro2.name = __FILE__; gcpro2.lineno = __LINE__; gcpro2.idx = 2; \
3248 gcpro3.next = &gcpro2; gcpro3.var = &(c); gcpro3.nvars = 1; \
3249 gcpro3.name = __FILE__; gcpro3.lineno = __LINE__; gcpro3.idx = 3; \
3250 gcpro4.next = &gcpro3; gcpro4.var = &(d); gcpro4.nvars = 1; \
3251 gcpro4.name = __FILE__; gcpro4.lineno = __LINE__; gcpro4.idx = 4; \
3252 gcpro5.next = &gcpro4; gcpro5.var = &(e); gcpro5.nvars = 1; \
3253 gcpro5.name = __FILE__; gcpro5.lineno = __LINE__; gcpro5.idx = 5; \
3254 gcpro5.level = gcpro_level++; \
3255 gcprolist = &gcpro5; }
3257 #define GCPRO6(a, b, c, d, e, f) \
3258 { gcpro1.next = gcprolist; gcpro1.var = &(a); gcpro1.nvars = 1; \
3259 gcpro1.name = __FILE__; gcpro1.lineno = __LINE__; gcpro1.idx = 1; \
3260 gcpro1.level = gcpro_level; \
3261 gcpro2.next = &gcpro1; gcpro2.var = &(b); gcpro2.nvars = 1; \
3262 gcpro2.name = __FILE__; gcpro2.lineno = __LINE__; gcpro2.idx = 2; \
3263 gcpro3.next = &gcpro2; gcpro3.var = &(c); gcpro3.nvars = 1; \
3264 gcpro3.name = __FILE__; gcpro3.lineno = __LINE__; gcpro3.idx = 3; \
3265 gcpro4.next = &gcpro3; gcpro4.var = &(d); gcpro4.nvars = 1; \
3266 gcpro4.name = __FILE__; gcpro4.lineno = __LINE__; gcpro4.idx = 4; \
3267 gcpro5.next = &gcpro4; gcpro5.var = &(e); gcpro5.nvars = 1; \
3268 gcpro5.name = __FILE__; gcpro5.lineno = __LINE__; gcpro5.idx = 5; \
3269 gcpro6.next = &gcpro5; gcpro6.var = &(f); gcpro6.nvars = 1; \
3270 gcpro6.name = __FILE__; gcpro6.lineno = __LINE__; gcpro6.idx = 6; \
3271 gcpro6.level = gcpro_level++; \
3272 gcprolist = &gcpro6; }
3274 #define GCPRO7(a, b, c, d, e, f, g) \
3275 { gcpro1.next = gcprolist; gcpro1.var = &(a); gcpro1.nvars = 1; \
3276 gcpro1.name = __FILE__; gcpro1.lineno = __LINE__; gcpro1.idx = 1; \
3277 gcpro1.level = gcpro_level; \
3278 gcpro2.next = &gcpro1; gcpro2.var = &(b); gcpro2.nvars = 1; \
3279 gcpro2.name = __FILE__; gcpro2.lineno = __LINE__; gcpro2.idx = 2; \
3280 gcpro3.next = &gcpro2; gcpro3.var = &(c); gcpro3.nvars = 1; \
3281 gcpro3.name = __FILE__; gcpro3.lineno = __LINE__; gcpro3.idx = 3; \
3282 gcpro4.next = &gcpro3; gcpro4.var = &(d); gcpro4.nvars = 1; \
3283 gcpro4.name = __FILE__; gcpro4.lineno = __LINE__; gcpro4.idx = 4; \
3284 gcpro5.next = &gcpro4; gcpro5.var = &(e); gcpro5.nvars = 1; \
3285 gcpro5.name = __FILE__; gcpro5.lineno = __LINE__; gcpro5.idx = 5; \
3286 gcpro6.next = &gcpro5; gcpro6.var = &(f); gcpro6.nvars = 1; \
3287 gcpro6.name = __FILE__; gcpro6.lineno = __LINE__; gcpro6.idx = 6; \
3288 gcpro7.next = &gcpro6; gcpro7.var = &(g); gcpro7.nvars = 1; \
3289 gcpro7.name = __FILE__; gcpro7.lineno = __LINE__; gcpro7.idx = 7; \
3290 gcpro7.level = gcpro_level++; \
3291 gcprolist = &gcpro7; }
3294 (--gcpro_level != gcpro1.level \
3296 : (void) (gcprolist = gcpro1.next))
3298 #endif /* DEBUG_GCPRO */
3299 #endif /* GC_MARK_STACK != GC_MAKE_GCPROS_NOOPS */
3302 /* Evaluate expr, UNGCPRO, and then return the value of expr. */
3303 #define RETURN_UNGCPRO(expr) \
3306 Lisp_Object ret_ungc_val; \
3307 ret_ungc_val = (expr); \
3309 return ret_ungc_val; \
3313 /* Call staticpro (&var) to protect static variable `var'. */
3315 void staticpro (Lisp_Object
*);
3317 /* Forward declarations for prototypes. */
3321 /* Copy COUNT Lisp_Objects from ARGS to contents of V starting from OFFSET. */
3324 vcopy (Lisp_Object v
, ptrdiff_t offset
, Lisp_Object
*args
, ptrdiff_t count
)
3326 eassert (0 <= offset
&& 0 <= count
&& offset
+ count
<= ASIZE (v
));
3327 memcpy (XVECTOR (v
)->contents
+ offset
, args
, count
* sizeof *args
);
3330 /* Functions to modify hash tables. */
3333 set_hash_key_slot (struct Lisp_Hash_Table
*h
, ptrdiff_t idx
, Lisp_Object val
)
3335 gc_aset (h
->key_and_value
, 2 * idx
, val
);
3339 set_hash_value_slot (struct Lisp_Hash_Table
*h
, ptrdiff_t idx
, Lisp_Object val
)
3341 gc_aset (h
->key_and_value
, 2 * idx
+ 1, val
);
3344 /* Use these functions to set Lisp_Object
3345 or pointer slots of struct Lisp_Symbol. */
3348 set_symbol_function (Lisp_Object sym
, Lisp_Object function
)
3350 XSYMBOL (sym
)->function
= function
;
3354 set_symbol_plist (Lisp_Object sym
, Lisp_Object plist
)
3356 XSYMBOL (sym
)->plist
= plist
;
3360 set_symbol_next (Lisp_Object sym
, struct Lisp_Symbol
*next
)
3362 XSYMBOL (sym
)->next
= next
;
3365 /* Buffer-local (also frame-local) variable access functions. */
3368 blv_found (struct Lisp_Buffer_Local_Value
*blv
)
3370 eassert (blv
->found
== !EQ (blv
->defcell
, blv
->valcell
));
3374 /* Set overlay's property list. */
3377 set_overlay_plist (Lisp_Object overlay
, Lisp_Object plist
)
3379 XOVERLAY (overlay
)->plist
= plist
;
3382 /* Get text properties of S. */
3385 string_intervals (Lisp_Object s
)
3387 return XSTRING (s
)->intervals
;
3390 /* Set text properties of S to I. */
3393 set_string_intervals (Lisp_Object s
, INTERVAL i
)
3395 XSTRING (s
)->intervals
= i
;
3398 /* Set a Lisp slot in TABLE to VAL. Most code should use this instead
3399 of setting slots directly. */
3402 set_char_table_defalt (Lisp_Object table
, Lisp_Object val
)
3404 XCHAR_TABLE (table
)->defalt
= val
;
3407 set_char_table_purpose (Lisp_Object table
, Lisp_Object val
)
3409 XCHAR_TABLE (table
)->purpose
= val
;
3412 /* Set different slots in (sub)character tables. */
3415 set_char_table_extras (Lisp_Object table
, ptrdiff_t idx
, Lisp_Object val
)
3417 eassert (0 <= idx
&& idx
< CHAR_TABLE_EXTRA_SLOTS (XCHAR_TABLE (table
)));
3418 XCHAR_TABLE (table
)->extras
[idx
] = val
;
3422 set_char_table_contents (Lisp_Object table
, ptrdiff_t idx
, Lisp_Object val
)
3424 eassert (0 <= idx
&& idx
< (1 << CHARTAB_SIZE_BITS_0
));
3425 XCHAR_TABLE (table
)->contents
[idx
] = val
;
3429 set_sub_char_table_contents (Lisp_Object table
, ptrdiff_t idx
, Lisp_Object val
)
3431 XSUB_CHAR_TABLE (table
)->contents
[idx
] = val
;
3434 /* Defined in data.c. */
3435 extern Lisp_Object
indirect_function (Lisp_Object
);
3436 extern Lisp_Object
find_symbol_value (Lisp_Object
);
3437 enum Arith_Comparison
{
3442 ARITH_LESS_OR_EQUAL
,
3445 extern Lisp_Object
arithcompare (Lisp_Object num1
, Lisp_Object num2
,
3446 enum Arith_Comparison comparison
);
3448 /* Convert the integer I to an Emacs representation, either the integer
3449 itself, or a cons of two or three integers, or if all else fails a float.
3450 I should not have side effects. */
3451 #define INTEGER_TO_CONS(i) \
3452 (! FIXNUM_OVERFLOW_P (i) \
3454 : ! ((FIXNUM_OVERFLOW_P (INTMAX_MIN >> 16) \
3455 || FIXNUM_OVERFLOW_P (UINTMAX_MAX >> 16)) \
3456 && FIXNUM_OVERFLOW_P ((i) >> 16)) \
3457 ? Fcons (make_number ((i) >> 16), make_number ((i) & 0xffff)) \
3458 : ! ((FIXNUM_OVERFLOW_P (INTMAX_MIN >> 16 >> 24) \
3459 || FIXNUM_OVERFLOW_P (UINTMAX_MAX >> 16 >> 24)) \
3460 && FIXNUM_OVERFLOW_P ((i) >> 16 >> 24)) \
3461 ? Fcons (make_number ((i) >> 16 >> 24), \
3462 Fcons (make_number ((i) >> 16 & 0xffffff), \
3463 make_number ((i) & 0xffff))) \
3466 /* Convert the Emacs representation CONS back to an integer of type
3467 TYPE, storing the result the variable VAR. Signal an error if CONS
3468 is not a valid representation or is out of range for TYPE. */
3469 #define CONS_TO_INTEGER(cons, type, var) \
3470 (TYPE_SIGNED (type) \
3471 ? ((var) = cons_to_signed (cons, TYPE_MINIMUM (type), TYPE_MAXIMUM (type))) \
3472 : ((var) = cons_to_unsigned (cons, TYPE_MAXIMUM (type))))
3473 extern intmax_t cons_to_signed (Lisp_Object
, intmax_t, intmax_t);
3474 extern uintmax_t cons_to_unsigned (Lisp_Object
, uintmax_t);
3476 extern struct Lisp_Symbol
*indirect_variable (struct Lisp_Symbol
*);
3477 extern _Noreturn
void args_out_of_range (Lisp_Object
, Lisp_Object
);
3478 extern _Noreturn
void args_out_of_range_3 (Lisp_Object
, Lisp_Object
,
3480 extern Lisp_Object
do_symval_forwarding (union Lisp_Fwd
*);
3481 extern void set_internal (Lisp_Object
, Lisp_Object
, Lisp_Object
, bool);
3482 extern void syms_of_data (void);
3483 extern void swap_in_global_binding (struct Lisp_Symbol
*);
3485 /* Defined in cmds.c */
3486 extern void syms_of_cmds (void);
3487 extern void keys_of_cmds (void);
3489 /* Defined in coding.c. */
3490 extern Lisp_Object
detect_coding_system (const unsigned char *, ptrdiff_t,
3491 ptrdiff_t, bool, bool, Lisp_Object
);
3492 extern void init_coding (void);
3493 extern void init_coding_once (void);
3494 extern void syms_of_coding (void);
3496 /* Defined in character.c. */
3497 extern ptrdiff_t chars_in_text (const unsigned char *, ptrdiff_t);
3498 extern ptrdiff_t multibyte_chars_in_text (const unsigned char *, ptrdiff_t);
3499 extern void syms_of_character (void);
3501 /* Defined in charset.c. */
3502 extern void init_charset (void);
3503 extern void init_charset_once (void);
3504 extern void syms_of_charset (void);
3505 /* Structure forward declarations. */
3508 /* Defined in syntax.c. */
3509 extern void init_syntax_once (void);
3510 extern void syms_of_syntax (void);
3512 /* Defined in fns.c. */
3513 enum { NEXT_ALMOST_PRIME_LIMIT
= 11 };
3514 extern EMACS_INT
next_almost_prime (EMACS_INT
) ATTRIBUTE_CONST
;
3515 extern Lisp_Object
larger_vector (Lisp_Object
, ptrdiff_t, ptrdiff_t);
3516 extern void sweep_weak_hash_tables (void);
3517 EMACS_UINT
hash_string (char const *, ptrdiff_t);
3518 EMACS_UINT
sxhash (Lisp_Object
, int);
3519 Lisp_Object
make_hash_table (struct hash_table_test
, Lisp_Object
, Lisp_Object
,
3520 Lisp_Object
, Lisp_Object
);
3521 ptrdiff_t hash_lookup (struct Lisp_Hash_Table
*, Lisp_Object
, EMACS_UINT
*);
3522 ptrdiff_t hash_put (struct Lisp_Hash_Table
*, Lisp_Object
, Lisp_Object
,
3524 extern struct hash_table_test hashtest_eql
, hashtest_equal
;
3525 extern void validate_subarray (Lisp_Object
, Lisp_Object
, Lisp_Object
,
3526 ptrdiff_t, ptrdiff_t *, ptrdiff_t *);
3527 extern Lisp_Object
substring_both (Lisp_Object
, ptrdiff_t, ptrdiff_t,
3528 ptrdiff_t, ptrdiff_t);
3529 extern Lisp_Object
merge (Lisp_Object
, Lisp_Object
, Lisp_Object
);
3530 extern Lisp_Object
do_yes_or_no_p (Lisp_Object
);
3531 extern Lisp_Object
concat2 (Lisp_Object
, Lisp_Object
);
3532 extern Lisp_Object
concat3 (Lisp_Object
, Lisp_Object
, Lisp_Object
);
3533 extern Lisp_Object
nconc2 (Lisp_Object
, Lisp_Object
);
3534 extern Lisp_Object
assq_no_quit (Lisp_Object
, Lisp_Object
);
3535 extern Lisp_Object
assoc_no_quit (Lisp_Object
, Lisp_Object
);
3536 extern void clear_string_char_byte_cache (void);
3537 extern ptrdiff_t string_char_to_byte (Lisp_Object
, ptrdiff_t);
3538 extern ptrdiff_t string_byte_to_char (Lisp_Object
, ptrdiff_t);
3539 extern Lisp_Object
string_to_multibyte (Lisp_Object
);
3540 extern Lisp_Object
string_make_unibyte (Lisp_Object
);
3541 extern void syms_of_fns (void);
3543 /* Defined in floatfns.c. */
3544 extern void syms_of_floatfns (void);
3545 extern Lisp_Object
fmod_float (Lisp_Object x
, Lisp_Object y
);
3547 /* Defined in fringe.c. */
3548 extern void syms_of_fringe (void);
3549 extern void init_fringe (void);
3550 #ifdef HAVE_WINDOW_SYSTEM
3551 extern void mark_fringe_data (void);
3552 extern void init_fringe_once (void);
3553 #endif /* HAVE_WINDOW_SYSTEM */
3555 /* Defined in image.c. */
3556 extern int x_bitmap_mask (struct frame
*, ptrdiff_t);
3557 extern void reset_image_types (void);
3558 extern void syms_of_image (void);
3560 /* Defined in insdel.c. */
3561 extern void move_gap_both (ptrdiff_t, ptrdiff_t);
3562 extern _Noreturn
void buffer_overflow (void);
3563 extern void make_gap (ptrdiff_t);
3564 extern void make_gap_1 (struct buffer
*, ptrdiff_t);
3565 extern ptrdiff_t copy_text (const unsigned char *, unsigned char *,
3566 ptrdiff_t, bool, bool);
3567 extern int count_combining_before (const unsigned char *,
3568 ptrdiff_t, ptrdiff_t, ptrdiff_t);
3569 extern int count_combining_after (const unsigned char *,
3570 ptrdiff_t, ptrdiff_t, ptrdiff_t);
3571 extern void insert (const char *, ptrdiff_t);
3572 extern void insert_and_inherit (const char *, ptrdiff_t);
3573 extern void insert_1_both (const char *, ptrdiff_t, ptrdiff_t,
3575 extern void insert_from_gap (ptrdiff_t, ptrdiff_t, bool text_at_gap_tail
);
3576 extern void insert_from_string (Lisp_Object
, ptrdiff_t, ptrdiff_t,
3577 ptrdiff_t, ptrdiff_t, bool);
3578 extern void insert_from_buffer (struct buffer
*, ptrdiff_t, ptrdiff_t, bool);
3579 extern void insert_char (int);
3580 extern void insert_string (const char *);
3581 extern void insert_before_markers (const char *, ptrdiff_t);
3582 extern void insert_before_markers_and_inherit (const char *, ptrdiff_t);
3583 extern void insert_from_string_before_markers (Lisp_Object
, ptrdiff_t,
3584 ptrdiff_t, ptrdiff_t,
3586 extern void del_range (ptrdiff_t, ptrdiff_t);
3587 extern Lisp_Object
del_range_1 (ptrdiff_t, ptrdiff_t, bool, bool);
3588 extern void del_range_byte (ptrdiff_t, ptrdiff_t, bool);
3589 extern void del_range_both (ptrdiff_t, ptrdiff_t, ptrdiff_t, ptrdiff_t, bool);
3590 extern Lisp_Object
del_range_2 (ptrdiff_t, ptrdiff_t,
3591 ptrdiff_t, ptrdiff_t, bool);
3592 extern void modify_text (ptrdiff_t, ptrdiff_t);
3593 extern void prepare_to_modify_buffer (ptrdiff_t, ptrdiff_t, ptrdiff_t *);
3594 extern void prepare_to_modify_buffer_1 (ptrdiff_t, ptrdiff_t, ptrdiff_t *);
3595 extern void invalidate_buffer_caches (struct buffer
*, ptrdiff_t, ptrdiff_t);
3596 extern void signal_after_change (ptrdiff_t, ptrdiff_t, ptrdiff_t);
3597 extern void adjust_after_insert (ptrdiff_t, ptrdiff_t, ptrdiff_t,
3598 ptrdiff_t, ptrdiff_t);
3599 extern void adjust_markers_for_delete (ptrdiff_t, ptrdiff_t,
3600 ptrdiff_t, ptrdiff_t);
3601 extern void replace_range (ptrdiff_t, ptrdiff_t, Lisp_Object
, bool, bool, bool);
3602 extern void replace_range_2 (ptrdiff_t, ptrdiff_t, ptrdiff_t, ptrdiff_t,
3603 const char *, ptrdiff_t, ptrdiff_t, bool);
3604 extern void syms_of_insdel (void);
3606 /* Defined in dispnew.c. */
3607 #if (defined PROFILING \
3608 && (defined __FreeBSD__ || defined GNU_LINUX || defined __MINGW32__))
3609 _Noreturn
void __executable_start (void);
3611 extern Lisp_Object Vwindow_system
;
3612 extern Lisp_Object
sit_for (Lisp_Object
, bool, int);
3614 /* Defined in xdisp.c. */
3615 extern bool noninteractive_need_newline
;
3616 extern Lisp_Object echo_area_buffer
[2];
3617 extern void add_to_log (const char *, Lisp_Object
, Lisp_Object
);
3618 extern void check_message_stack (void);
3619 extern void setup_echo_area_for_printing (int);
3620 extern bool push_message (void);
3621 extern void pop_message_unwind (void);
3622 extern Lisp_Object
restore_message_unwind (Lisp_Object
);
3623 extern void restore_message (void);
3624 extern Lisp_Object
current_message (void);
3625 extern void clear_message (bool, bool);
3626 extern void message (const char *, ...) ATTRIBUTE_FORMAT_PRINTF (1, 2);
3627 extern void message1 (const char *);
3628 extern void message1_nolog (const char *);
3629 extern void message3 (Lisp_Object
);
3630 extern void message3_nolog (Lisp_Object
);
3631 extern void message_dolog (const char *, ptrdiff_t, bool, bool);
3632 extern void message_with_string (const char *, Lisp_Object
, int);
3633 extern void message_log_maybe_newline (void);
3634 extern void update_echo_area (void);
3635 extern void truncate_echo_area (ptrdiff_t);
3636 extern void redisplay (void);
3638 void set_frame_cursor_types (struct frame
*, Lisp_Object
);
3639 extern void syms_of_xdisp (void);
3640 extern void init_xdisp (void);
3641 extern Lisp_Object
safe_eval (Lisp_Object
);
3642 extern int pos_visible_p (struct window
*, ptrdiff_t, int *,
3643 int *, int *, int *, int *, int *);
3645 /* Defined in xsettings.c. */
3646 extern void syms_of_xsettings (void);
3648 /* Defined in vm-limit.c. */
3649 extern void memory_warnings (void *, void (*warnfun
) (const char *));
3651 /* Defined in character.c. */
3652 extern void parse_str_as_multibyte (const unsigned char *, ptrdiff_t,
3653 ptrdiff_t *, ptrdiff_t *);
3655 /* Defined in alloc.c. */
3656 extern void check_pure_size (void);
3657 extern void free_misc (Lisp_Object
);
3658 extern void allocate_string_data (struct Lisp_String
*, EMACS_INT
, EMACS_INT
);
3659 extern void malloc_warning (const char *);
3660 extern _Noreturn
void memory_full (size_t);
3661 extern _Noreturn
void buffer_memory_full (ptrdiff_t);
3662 extern bool survives_gc_p (Lisp_Object
);
3663 extern void mark_object (Lisp_Object
);
3664 #if defined REL_ALLOC && !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
3665 extern void refill_memory_reserve (void);
3667 extern const char *pending_malloc_warning
;
3668 extern Lisp_Object zero_vector
;
3669 extern Lisp_Object
*stack_base
;
3670 extern EMACS_INT consing_since_gc
;
3671 extern EMACS_INT gc_relative_threshold
;
3672 extern EMACS_INT memory_full_cons_threshold
;
3673 extern Lisp_Object
list1 (Lisp_Object
);
3674 extern Lisp_Object
list2 (Lisp_Object
, Lisp_Object
);
3675 extern Lisp_Object
list3 (Lisp_Object
, Lisp_Object
, Lisp_Object
);
3676 extern Lisp_Object
list4 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
3677 extern Lisp_Object
list5 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
,
3679 enum constype
{CONSTYPE_HEAP
, CONSTYPE_PURE
};
3680 extern Lisp_Object
listn (enum constype
, ptrdiff_t, Lisp_Object
, ...);
3682 /* Build a frequently used 2/3/4-integer lists. */
3685 list2i (EMACS_INT x
, EMACS_INT y
)
3687 return list2 (make_number (x
), make_number (y
));
3691 list3i (EMACS_INT x
, EMACS_INT y
, EMACS_INT w
)
3693 return list3 (make_number (x
), make_number (y
), make_number (w
));
3697 list4i (EMACS_INT x
, EMACS_INT y
, EMACS_INT w
, EMACS_INT h
)
3699 return list4 (make_number (x
), make_number (y
),
3700 make_number (w
), make_number (h
));
3703 extern Lisp_Object
make_uninit_bool_vector (EMACS_INT
);
3704 extern Lisp_Object
bool_vector_fill (Lisp_Object
, Lisp_Object
);
3705 extern _Noreturn
void string_overflow (void);
3706 extern Lisp_Object
make_string (const char *, ptrdiff_t);
3707 extern Lisp_Object
make_formatted_string (char *, const char *, ...)
3708 ATTRIBUTE_FORMAT_PRINTF (2, 3);
3709 extern Lisp_Object
make_unibyte_string (const char *, ptrdiff_t);
3711 /* Make unibyte string from C string when the length isn't known. */
3714 build_unibyte_string (const char *str
)
3716 return make_unibyte_string (str
, strlen (str
));
3719 extern Lisp_Object
make_multibyte_string (const char *, ptrdiff_t, ptrdiff_t);
3720 extern Lisp_Object
make_event_array (ptrdiff_t, Lisp_Object
*);
3721 extern Lisp_Object
make_uninit_string (EMACS_INT
);
3722 extern Lisp_Object
make_uninit_multibyte_string (EMACS_INT
, EMACS_INT
);
3723 extern Lisp_Object
make_string_from_bytes (const char *, ptrdiff_t, ptrdiff_t);
3724 extern Lisp_Object
make_specified_string (const char *,
3725 ptrdiff_t, ptrdiff_t, bool);
3726 extern Lisp_Object
make_pure_string (const char *, ptrdiff_t, ptrdiff_t, bool);
3727 extern Lisp_Object
make_pure_c_string (const char *, ptrdiff_t);
3729 /* Make a string allocated in pure space, use STR as string data. */
3732 build_pure_c_string (const char *str
)
3734 return make_pure_c_string (str
, strlen (str
));
3737 /* Make a string from the data at STR, treating it as multibyte if the
3741 build_string (const char *str
)
3743 return make_string (str
, strlen (str
));
3746 extern Lisp_Object
pure_cons (Lisp_Object
, Lisp_Object
);
3747 extern void make_byte_code (struct Lisp_Vector
*);
3748 extern struct Lisp_Vector
*allocate_vector (EMACS_INT
);
3750 /* Make an uninitialized vector for SIZE objects. NOTE: you must
3751 be sure that GC cannot happen until the vector is completely
3752 initialized. E.g. the following code is likely to crash:
3754 v = make_uninit_vector (3);
3756 ASET (v, 1, Ffunction_can_gc ());
3757 ASET (v, 2, obj1); */
3760 make_uninit_vector (ptrdiff_t size
)
3763 struct Lisp_Vector
*p
;
3765 p
= allocate_vector (size
);
3770 /* Like above, but special for sub char-tables. */
3773 make_uninit_sub_char_table (int depth
, int min_char
)
3775 int slots
= SUB_CHAR_TABLE_OFFSET
+ chartab_size
[depth
];
3776 Lisp_Object v
= make_uninit_vector (slots
);
3778 XSETPVECTYPE (XVECTOR (v
), PVEC_SUB_CHAR_TABLE
);
3779 XSUB_CHAR_TABLE (v
)->depth
= depth
;
3780 XSUB_CHAR_TABLE (v
)->min_char
= min_char
;
3784 extern struct Lisp_Vector
*allocate_pseudovector (int, int, int,
3787 /* Allocate partially initialized pseudovector where all Lisp_Object
3788 slots are set to Qnil but the rest (if any) is left uninitialized. */
3790 #define ALLOCATE_PSEUDOVECTOR(type, field, tag) \
3791 ((type *) allocate_pseudovector (VECSIZE (type), \
3792 PSEUDOVECSIZE (type, field), \
3793 PSEUDOVECSIZE (type, field), tag))
3795 /* Allocate fully initialized pseudovector where all Lisp_Object
3796 slots are set to Qnil and the rest (if any) is zeroed. */
3798 #define ALLOCATE_ZEROED_PSEUDOVECTOR(type, field, tag) \
3799 ((type *) allocate_pseudovector (VECSIZE (type), \
3800 PSEUDOVECSIZE (type, field), \
3801 VECSIZE (type), tag))
3803 extern bool gc_in_progress
;
3804 extern bool abort_on_gc
;
3805 extern Lisp_Object
make_float (double);
3806 extern void display_malloc_warning (void);
3807 extern ptrdiff_t inhibit_garbage_collection (void);
3808 extern Lisp_Object
make_save_int_int_int (ptrdiff_t, ptrdiff_t, ptrdiff_t);
3809 extern Lisp_Object
make_save_obj_obj_obj_obj (Lisp_Object
, Lisp_Object
,
3810 Lisp_Object
, Lisp_Object
);
3811 extern Lisp_Object
make_save_ptr (void *);
3812 extern Lisp_Object
make_save_ptr_int (void *, ptrdiff_t);
3813 extern Lisp_Object
make_save_ptr_ptr (void *, void *);
3814 extern Lisp_Object
make_save_funcptr_ptr_obj (void (*) (void), void *,
3816 extern Lisp_Object
make_save_memory (Lisp_Object
*, ptrdiff_t);
3817 extern void free_save_value (Lisp_Object
);
3818 extern Lisp_Object
build_overlay (Lisp_Object
, Lisp_Object
, Lisp_Object
);
3819 extern void free_marker (Lisp_Object
);
3820 extern void free_cons (struct Lisp_Cons
*);
3821 extern void init_alloc_once (void);
3822 extern void init_alloc (void);
3823 extern void syms_of_alloc (void);
3824 extern struct buffer
* allocate_buffer (void);
3825 extern int valid_lisp_object_p (Lisp_Object
);
3826 extern int relocatable_string_data_p (const char *);
3827 #ifdef GC_CHECK_CONS_LIST
3828 extern void check_cons_list (void);
3830 INLINE
void (check_cons_list
) (void) { lisp_h_check_cons_list (); }
3834 /* Defined in ralloc.c. */
3835 extern void *r_alloc (void **, size_t) ATTRIBUTE_ALLOC_SIZE ((2));
3836 extern void r_alloc_free (void **);
3837 extern void *r_re_alloc (void **, size_t) ATTRIBUTE_ALLOC_SIZE ((2));
3838 extern void r_alloc_reset_variable (void **, void **);
3839 extern void r_alloc_inhibit_buffer_relocation (int);
3842 /* Defined in chartab.c. */
3843 extern Lisp_Object
copy_char_table (Lisp_Object
);
3844 extern Lisp_Object
char_table_ref_and_range (Lisp_Object
, int,
3846 extern void char_table_set_range (Lisp_Object
, int, int, Lisp_Object
);
3847 extern void map_char_table (void (*) (Lisp_Object
, Lisp_Object
,
3849 Lisp_Object
, Lisp_Object
, Lisp_Object
);
3850 extern void map_char_table_for_charset (void (*c_function
) (Lisp_Object
, Lisp_Object
),
3851 Lisp_Object
, Lisp_Object
,
3852 Lisp_Object
, struct charset
*,
3853 unsigned, unsigned);
3854 extern Lisp_Object
uniprop_table (Lisp_Object
);
3855 extern void syms_of_chartab (void);
3857 /* Defined in print.c. */
3858 extern Lisp_Object Vprin1_to_string_buffer
;
3859 extern void debug_print (Lisp_Object
) EXTERNALLY_VISIBLE
;
3860 extern void temp_output_buffer_setup (const char *);
3861 extern int print_level
;
3862 extern void write_string (const char *, int);
3863 extern void print_error_message (Lisp_Object
, Lisp_Object
, const char *,
3865 extern Lisp_Object internal_with_output_to_temp_buffer
3866 (const char *, Lisp_Object (*) (Lisp_Object
), Lisp_Object
);
3867 #define FLOAT_TO_STRING_BUFSIZE 350
3868 extern int float_to_string (char *, double);
3869 extern void init_print_once (void);
3870 extern void syms_of_print (void);
3872 /* Defined in doprnt.c. */
3873 extern ptrdiff_t doprnt (char *, ptrdiff_t, const char *, const char *,
3875 extern ptrdiff_t esprintf (char *, char const *, ...)
3876 ATTRIBUTE_FORMAT_PRINTF (2, 3);
3877 extern ptrdiff_t exprintf (char **, ptrdiff_t *, char const *, ptrdiff_t,
3879 ATTRIBUTE_FORMAT_PRINTF (5, 6);
3880 extern ptrdiff_t evxprintf (char **, ptrdiff_t *, char const *, ptrdiff_t,
3881 char const *, va_list)
3882 ATTRIBUTE_FORMAT_PRINTF (5, 0);
3884 /* Defined in lread.c. */
3885 extern Lisp_Object
check_obarray (Lisp_Object
);
3886 extern Lisp_Object
intern_1 (const char *, ptrdiff_t);
3887 extern Lisp_Object
intern_c_string_1 (const char *, ptrdiff_t);
3888 extern Lisp_Object
intern_driver (Lisp_Object
, Lisp_Object
, Lisp_Object
);
3889 extern void init_symbol (Lisp_Object
, Lisp_Object
);
3890 extern Lisp_Object
oblookup (Lisp_Object
, const char *, ptrdiff_t, ptrdiff_t);
3892 LOADHIST_ATTACH (Lisp_Object x
)
3895 Vcurrent_load_list
= Fcons (x
, Vcurrent_load_list
);
3897 extern int openp (Lisp_Object
, Lisp_Object
, Lisp_Object
,
3898 Lisp_Object
*, Lisp_Object
, bool);
3899 extern Lisp_Object
string_to_number (char const *, int, bool);
3900 extern void map_obarray (Lisp_Object
, void (*) (Lisp_Object
, Lisp_Object
),
3902 extern void dir_warning (const char *, Lisp_Object
);
3903 extern void init_obarray (void);
3904 extern void init_lread (void);
3905 extern void syms_of_lread (void);
3908 intern (const char *str
)
3910 return intern_1 (str
, strlen (str
));
3914 intern_c_string (const char *str
)
3916 return intern_c_string_1 (str
, strlen (str
));
3919 /* Defined in eval.c. */
3920 extern EMACS_INT lisp_eval_depth
;
3921 extern Lisp_Object Vautoload_queue
;
3922 extern Lisp_Object Vrun_hooks
;
3923 extern Lisp_Object Vsignaling_function
;
3924 extern Lisp_Object inhibit_lisp_code
;
3925 extern struct handler
*handlerlist
;
3927 /* To run a normal hook, use the appropriate function from the list below.
3928 The calling convention:
3930 if (!NILP (Vrun_hooks))
3931 call1 (Vrun_hooks, Qmy_funny_hook);
3933 should no longer be used. */
3934 extern void run_hook (Lisp_Object
);
3935 extern void run_hook_with_args_2 (Lisp_Object
, Lisp_Object
, Lisp_Object
);
3936 extern Lisp_Object
run_hook_with_args (ptrdiff_t nargs
, Lisp_Object
*args
,
3937 Lisp_Object (*funcall
)
3938 (ptrdiff_t nargs
, Lisp_Object
*args
));
3939 extern _Noreturn
void xsignal (Lisp_Object
, Lisp_Object
);
3940 extern _Noreturn
void xsignal0 (Lisp_Object
);
3941 extern _Noreturn
void xsignal1 (Lisp_Object
, Lisp_Object
);
3942 extern _Noreturn
void xsignal2 (Lisp_Object
, Lisp_Object
, Lisp_Object
);
3943 extern _Noreturn
void xsignal3 (Lisp_Object
, Lisp_Object
, Lisp_Object
,
3945 extern _Noreturn
void signal_error (const char *, Lisp_Object
);
3946 extern Lisp_Object
eval_sub (Lisp_Object form
);
3947 extern Lisp_Object
apply1 (Lisp_Object
, Lisp_Object
);
3948 extern Lisp_Object
call0 (Lisp_Object
);
3949 extern Lisp_Object
call1 (Lisp_Object
, Lisp_Object
);
3950 extern Lisp_Object
call2 (Lisp_Object
, Lisp_Object
, Lisp_Object
);
3951 extern Lisp_Object
call3 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
3952 extern Lisp_Object
call4 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
3953 extern Lisp_Object
call5 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
3954 extern Lisp_Object
call6 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
3955 extern Lisp_Object
call7 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
3956 extern Lisp_Object
internal_catch (Lisp_Object
, Lisp_Object (*) (Lisp_Object
), Lisp_Object
);
3957 extern Lisp_Object
internal_lisp_condition_case (Lisp_Object
, Lisp_Object
, Lisp_Object
);
3958 extern Lisp_Object
internal_condition_case (Lisp_Object (*) (void), Lisp_Object
, Lisp_Object (*) (Lisp_Object
));
3959 extern Lisp_Object
internal_condition_case_1 (Lisp_Object (*) (Lisp_Object
), Lisp_Object
, Lisp_Object
, Lisp_Object (*) (Lisp_Object
));
3960 extern Lisp_Object
internal_condition_case_2 (Lisp_Object (*) (Lisp_Object
, Lisp_Object
), Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object (*) (Lisp_Object
));
3961 extern Lisp_Object internal_condition_case_n
3962 (Lisp_Object (*) (ptrdiff_t, Lisp_Object
*), ptrdiff_t, Lisp_Object
*,
3963 Lisp_Object
, Lisp_Object (*) (Lisp_Object
, ptrdiff_t, Lisp_Object
*));
3964 extern void specbind (Lisp_Object
, Lisp_Object
);
3965 extern void record_unwind_protect (void (*) (Lisp_Object
), Lisp_Object
);
3966 extern void record_unwind_protect_ptr (void (*) (void *), void *);
3967 extern void record_unwind_protect_int (void (*) (int), int);
3968 extern void record_unwind_protect_void (void (*) (void));
3969 extern void record_unwind_protect_nothing (void);
3970 extern void clear_unwind_protect (ptrdiff_t);
3971 extern void set_unwind_protect (ptrdiff_t, void (*) (Lisp_Object
), Lisp_Object
);
3972 extern void set_unwind_protect_ptr (ptrdiff_t, void (*) (void *), void *);
3973 extern Lisp_Object
unbind_to (ptrdiff_t, Lisp_Object
);
3974 extern _Noreturn
void error (const char *, ...) ATTRIBUTE_FORMAT_PRINTF (1, 2);
3975 extern _Noreturn
void verror (const char *, va_list)
3976 ATTRIBUTE_FORMAT_PRINTF (1, 0);
3977 extern void un_autoload (Lisp_Object
);
3978 extern Lisp_Object
call_debugger (Lisp_Object arg
);
3979 extern void init_eval_once (void);
3980 extern Lisp_Object
safe_call (ptrdiff_t, Lisp_Object
, ...);
3981 extern Lisp_Object
safe_call1 (Lisp_Object
, Lisp_Object
);
3982 extern Lisp_Object
safe_call2 (Lisp_Object
, Lisp_Object
, Lisp_Object
);
3983 extern void init_eval (void);
3984 extern void syms_of_eval (void);
3985 extern void unwind_body (Lisp_Object
);
3986 extern ptrdiff_t record_in_backtrace (Lisp_Object
, Lisp_Object
*, ptrdiff_t);
3987 extern void mark_specpdl (void);
3988 extern void get_backtrace (Lisp_Object array
);
3989 Lisp_Object
backtrace_top_function (void);
3990 extern bool let_shadows_buffer_binding_p (struct Lisp_Symbol
*symbol
);
3991 extern bool let_shadows_global_binding_p (Lisp_Object symbol
);
3994 /* Defined in editfns.c. */
3995 extern void insert1 (Lisp_Object
);
3996 extern Lisp_Object
format2 (const char *, Lisp_Object
, Lisp_Object
);
3997 extern Lisp_Object
save_excursion_save (void);
3998 extern Lisp_Object
save_restriction_save (void);
3999 extern void save_excursion_restore (Lisp_Object
);
4000 extern void save_restriction_restore (Lisp_Object
);
4001 extern _Noreturn
void time_overflow (void);
4002 extern Lisp_Object
make_buffer_string (ptrdiff_t, ptrdiff_t, bool);
4003 extern Lisp_Object
make_buffer_string_both (ptrdiff_t, ptrdiff_t, ptrdiff_t,
4005 extern void init_editfns (void);
4006 extern void syms_of_editfns (void);
4008 /* Defined in buffer.c. */
4009 extern bool mouse_face_overlay_overlaps (Lisp_Object
);
4010 extern _Noreturn
void nsberror (Lisp_Object
);
4011 extern void adjust_overlays_for_insert (ptrdiff_t, ptrdiff_t);
4012 extern void adjust_overlays_for_delete (ptrdiff_t, ptrdiff_t);
4013 extern void fix_start_end_in_overlays (ptrdiff_t, ptrdiff_t);
4014 extern void report_overlay_modification (Lisp_Object
, Lisp_Object
, bool,
4015 Lisp_Object
, Lisp_Object
, Lisp_Object
);
4016 extern bool overlay_touches_p (ptrdiff_t);
4017 extern Lisp_Object
other_buffer_safely (Lisp_Object
);
4018 extern Lisp_Object
get_truename_buffer (Lisp_Object
);
4019 extern void init_buffer_once (void);
4020 extern void init_buffer (int);
4021 extern void syms_of_buffer (void);
4022 extern void keys_of_buffer (void);
4024 /* Defined in marker.c. */
4026 extern ptrdiff_t marker_position (Lisp_Object
);
4027 extern ptrdiff_t marker_byte_position (Lisp_Object
);
4028 extern void clear_charpos_cache (struct buffer
*);
4029 extern ptrdiff_t buf_charpos_to_bytepos (struct buffer
*, ptrdiff_t);
4030 extern ptrdiff_t buf_bytepos_to_charpos (struct buffer
*, ptrdiff_t);
4031 extern void unchain_marker (struct Lisp_Marker
*marker
);
4032 extern Lisp_Object
set_marker_restricted (Lisp_Object
, Lisp_Object
, Lisp_Object
);
4033 extern Lisp_Object
set_marker_both (Lisp_Object
, Lisp_Object
, ptrdiff_t, ptrdiff_t);
4034 extern Lisp_Object
set_marker_restricted_both (Lisp_Object
, Lisp_Object
,
4035 ptrdiff_t, ptrdiff_t);
4036 extern Lisp_Object
build_marker (struct buffer
*, ptrdiff_t, ptrdiff_t);
4037 extern void syms_of_marker (void);
4039 /* Defined in fileio.c. */
4041 extern Lisp_Object
expand_and_dir_to_file (Lisp_Object
, Lisp_Object
);
4042 extern Lisp_Object
write_region (Lisp_Object
, Lisp_Object
, Lisp_Object
,
4043 Lisp_Object
, Lisp_Object
, Lisp_Object
,
4045 extern void close_file_unwind (int);
4046 extern void fclose_unwind (void *);
4047 extern void restore_point_unwind (Lisp_Object
);
4048 extern _Noreturn
void report_file_errno (const char *, Lisp_Object
, int);
4049 extern _Noreturn
void report_file_error (const char *, Lisp_Object
);
4050 extern bool internal_delete_file (Lisp_Object
);
4051 extern Lisp_Object
emacs_readlinkat (int, const char *);
4052 extern bool file_directory_p (const char *);
4053 extern bool file_accessible_directory_p (Lisp_Object
);
4054 extern void init_fileio (void);
4055 extern void syms_of_fileio (void);
4056 extern Lisp_Object
make_temp_name (Lisp_Object
, bool);
4058 /* Defined in search.c. */
4059 extern void shrink_regexp_cache (void);
4060 extern void restore_search_regs (void);
4061 extern void record_unwind_save_match_data (void);
4062 struct re_registers
;
4063 extern struct re_pattern_buffer
*compile_pattern (Lisp_Object
,
4064 struct re_registers
*,
4065 Lisp_Object
, bool, bool);
4066 extern ptrdiff_t fast_string_match_internal (Lisp_Object
, Lisp_Object
,
4070 fast_string_match (Lisp_Object regexp
, Lisp_Object string
)
4072 return fast_string_match_internal (regexp
, string
, Qnil
);
4076 fast_string_match_ignore_case (Lisp_Object regexp
, Lisp_Object string
)
4078 return fast_string_match_internal (regexp
, string
, Vascii_canon_table
);
4081 extern ptrdiff_t fast_c_string_match_ignore_case (Lisp_Object
, const char *,
4083 extern ptrdiff_t fast_looking_at (Lisp_Object
, ptrdiff_t, ptrdiff_t,
4084 ptrdiff_t, ptrdiff_t, Lisp_Object
);
4085 extern ptrdiff_t find_newline (ptrdiff_t, ptrdiff_t, ptrdiff_t, ptrdiff_t,
4086 ptrdiff_t, ptrdiff_t *, ptrdiff_t *, bool);
4087 extern ptrdiff_t scan_newline (ptrdiff_t, ptrdiff_t, ptrdiff_t, ptrdiff_t,
4089 extern ptrdiff_t scan_newline_from_point (ptrdiff_t, ptrdiff_t *, ptrdiff_t *);
4090 extern ptrdiff_t find_newline_no_quit (ptrdiff_t, ptrdiff_t,
4091 ptrdiff_t, ptrdiff_t *);
4092 extern ptrdiff_t find_before_next_newline (ptrdiff_t, ptrdiff_t,
4093 ptrdiff_t, ptrdiff_t *);
4094 extern void syms_of_search (void);
4095 extern void clear_regexp_cache (void);
4097 /* Defined in minibuf.c. */
4099 extern Lisp_Object Vminibuffer_list
;
4100 extern Lisp_Object last_minibuf_string
;
4101 extern Lisp_Object
get_minibuffer (EMACS_INT
);
4102 extern void init_minibuf_once (void);
4103 extern void syms_of_minibuf (void);
4105 /* Defined in callint.c. */
4107 extern void syms_of_callint (void);
4109 /* Defined in casefiddle.c. */
4111 extern void syms_of_casefiddle (void);
4112 extern void keys_of_casefiddle (void);
4114 /* Defined in casetab.c. */
4116 extern void init_casetab_once (void);
4117 extern void syms_of_casetab (void);
4119 /* Defined in keyboard.c. */
4121 extern Lisp_Object echo_message_buffer
;
4122 extern struct kboard
*echo_kboard
;
4123 extern void cancel_echoing (void);
4124 extern Lisp_Object last_undo_boundary
;
4125 extern bool input_pending
;
4126 #ifdef HAVE_STACK_OVERFLOW_HANDLING
4127 extern sigjmp_buf return_to_command_loop
;
4129 extern Lisp_Object
menu_bar_items (Lisp_Object
);
4130 extern Lisp_Object
tool_bar_items (Lisp_Object
, int *);
4131 extern void discard_mouse_events (void);
4133 void handle_input_available_signal (int);
4135 extern Lisp_Object pending_funcalls
;
4136 extern bool detect_input_pending (void);
4137 extern bool detect_input_pending_ignore_squeezables (void);
4138 extern bool detect_input_pending_run_timers (bool);
4139 extern void safe_run_hooks (Lisp_Object
);
4140 extern void cmd_error_internal (Lisp_Object
, const char *);
4141 extern Lisp_Object
command_loop_1 (void);
4142 extern Lisp_Object
read_menu_command (void);
4143 extern Lisp_Object
recursive_edit_1 (void);
4144 extern void record_auto_save (void);
4145 extern void force_auto_save_soon (void);
4146 extern void init_keyboard (void);
4147 extern void syms_of_keyboard (void);
4148 extern void keys_of_keyboard (void);
4150 /* Defined in indent.c. */
4151 extern ptrdiff_t current_column (void);
4152 extern void invalidate_current_column (void);
4153 extern bool indented_beyond_p (ptrdiff_t, ptrdiff_t, EMACS_INT
);
4154 extern void syms_of_indent (void);
4156 /* Defined in frame.c. */
4157 extern void store_frame_param (struct frame
*, Lisp_Object
, Lisp_Object
);
4158 extern void store_in_alist (Lisp_Object
*, Lisp_Object
, Lisp_Object
);
4159 extern Lisp_Object
do_switch_frame (Lisp_Object
, int, int, Lisp_Object
);
4160 extern Lisp_Object
get_frame_param (struct frame
*, Lisp_Object
);
4161 extern void frames_discard_buffer (Lisp_Object
);
4162 extern void syms_of_frame (void);
4164 /* Defined in emacs.c. */
4165 extern char **initial_argv
;
4166 extern int initial_argc
;
4167 #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS)
4168 extern bool display_arg
;
4170 extern Lisp_Object
decode_env_path (const char *, const char *, bool);
4171 extern Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
4172 extern _Noreturn
void terminate_due_to_signal (int, int);
4174 extern Lisp_Object Vlibrary_cache
;
4177 void fixup_locale (void);
4178 void synchronize_system_messages_locale (void);
4179 void synchronize_system_time_locale (void);
4181 INLINE
void fixup_locale (void) {}
4182 INLINE
void synchronize_system_messages_locale (void) {}
4183 INLINE
void synchronize_system_time_locale (void) {}
4185 extern void shut_down_emacs (int, Lisp_Object
);
4187 /* True means don't do interactive redisplay and don't change tty modes. */
4188 extern bool noninteractive
;
4190 /* True means remove site-lisp directories from load-path. */
4191 extern bool no_site_lisp
;
4193 /* Pipe used to send exit notification to the daemon parent at
4195 extern int daemon_pipe
[2];
4196 #define IS_DAEMON (daemon_pipe[1] != 0)
4198 /* True if handling a fatal error already. */
4199 extern bool fatal_error_in_progress
;
4201 /* True means don't do use window-system-specific display code. */
4202 extern bool inhibit_window_system
;
4203 /* True means that a filter or a sentinel is running. */
4204 extern bool running_asynch_code
;
4206 /* Defined in process.c. */
4207 extern void kill_buffer_processes (Lisp_Object
);
4208 extern int wait_reading_process_output (intmax_t, int, int, bool, Lisp_Object
,
4209 struct Lisp_Process
*, int);
4210 /* Max value for the first argument of wait_reading_process_output. */
4211 #if __GNUC__ == 3 || (__GNUC__ == 4 && __GNUC_MINOR__ <= 5)
4212 /* Work around a bug in GCC 3.4.2, known to be fixed in GCC 4.6.3.
4213 The bug merely causes a bogus warning, but the warning is annoying. */
4214 # define WAIT_READING_MAX min (TYPE_MAXIMUM (time_t), INTMAX_MAX)
4216 # define WAIT_READING_MAX INTMAX_MAX
4219 extern void add_timer_wait_descriptor (int);
4221 extern void add_keyboard_wait_descriptor (int);
4222 extern void delete_keyboard_wait_descriptor (int);
4224 extern void add_gpm_wait_descriptor (int);
4225 extern void delete_gpm_wait_descriptor (int);
4227 extern void init_process_emacs (void);
4228 extern void syms_of_process (void);
4229 extern void setup_process_coding_systems (Lisp_Object
);
4231 /* Defined in callproc.c. */
4235 extern int child_setup (int, int, int, char **, bool, Lisp_Object
);
4236 extern void init_callproc_1 (void);
4237 extern void init_callproc (void);
4238 extern void set_initial_environment (void);
4239 extern void syms_of_callproc (void);
4241 /* Defined in doc.c. */
4242 extern Lisp_Object
read_doc_string (Lisp_Object
);
4243 extern Lisp_Object
get_doc_string (Lisp_Object
, bool, bool);
4244 extern void syms_of_doc (void);
4245 extern int read_bytecode_char (bool);
4247 /* Defined in bytecode.c. */
4248 extern void syms_of_bytecode (void);
4249 extern struct byte_stack
*byte_stack_list
;
4251 extern void mark_byte_stack (void);
4253 extern void unmark_byte_stack (void);
4254 extern Lisp_Object
exec_byte_code (Lisp_Object
, Lisp_Object
, Lisp_Object
,
4255 Lisp_Object
, ptrdiff_t, Lisp_Object
*);
4257 /* Defined in macros.c. */
4258 extern void init_macros (void);
4259 extern void syms_of_macros (void);
4261 /* Defined in undo.c. */
4262 extern void truncate_undo_list (struct buffer
*);
4263 extern void record_insert (ptrdiff_t, ptrdiff_t);
4264 extern void record_delete (ptrdiff_t, Lisp_Object
, bool);
4265 extern void record_first_change (void);
4266 extern void record_change (ptrdiff_t, ptrdiff_t);
4267 extern void record_property_change (ptrdiff_t, ptrdiff_t,
4268 Lisp_Object
, Lisp_Object
,
4270 extern void syms_of_undo (void);
4272 /* Defined in textprop.c. */
4273 extern void report_interval_modification (Lisp_Object
, Lisp_Object
);
4275 /* Defined in menu.c. */
4276 extern void syms_of_menu (void);
4278 /* Defined in xmenu.c. */
4279 extern void syms_of_xmenu (void);
4281 /* Defined in termchar.h. */
4282 struct tty_display_info
;
4284 /* Defined in termhooks.h. */
4287 /* Defined in sysdep.c. */
4288 #ifndef HAVE_GET_CURRENT_DIR_NAME
4289 extern char *get_current_dir_name (void);
4291 extern void stuff_char (char c
);
4292 extern void init_foreground_group (void);
4293 extern void sys_subshell (void);
4294 extern void sys_suspend (void);
4295 extern void discard_tty_input (void);
4296 extern void init_sys_modes (struct tty_display_info
*);
4297 extern void reset_sys_modes (struct tty_display_info
*);
4298 extern void init_all_sys_modes (void);
4299 extern void reset_all_sys_modes (void);
4300 extern void child_setup_tty (int);
4301 extern void setup_pty (int);
4302 extern int set_window_size (int, int, int);
4303 extern EMACS_INT
get_random (void);
4304 extern void seed_random (void *, ptrdiff_t);
4305 extern void init_random (void);
4306 extern void emacs_backtrace (int);
4307 extern _Noreturn
void emacs_abort (void) NO_INLINE
;
4308 extern int emacs_open (const char *, int, int);
4309 extern int emacs_pipe (int[2]);
4310 extern int emacs_close (int);
4311 extern ptrdiff_t emacs_read (int, void *, ptrdiff_t);
4312 extern ptrdiff_t emacs_write (int, void const *, ptrdiff_t);
4313 extern ptrdiff_t emacs_write_sig (int, void const *, ptrdiff_t);
4314 extern void emacs_perror (char const *);
4316 extern void unlock_all_files (void);
4317 extern void lock_file (Lisp_Object
);
4318 extern void unlock_file (Lisp_Object
);
4319 extern void unlock_buffer (struct buffer
*);
4320 extern void syms_of_filelock (void);
4321 extern int str_collate (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
4323 /* Defined in sound.c. */
4324 extern void syms_of_sound (void);
4326 /* Defined in category.c. */
4327 extern void init_category_once (void);
4328 extern Lisp_Object
char_category_set (int);
4329 extern void syms_of_category (void);
4331 /* Defined in ccl.c. */
4332 extern void syms_of_ccl (void);
4334 /* Defined in dired.c. */
4335 extern void syms_of_dired (void);
4336 extern Lisp_Object
directory_files_internal (Lisp_Object
, Lisp_Object
,
4337 Lisp_Object
, Lisp_Object
,
4340 /* Defined in term.c. */
4341 extern int *char_ins_del_vector
;
4342 extern void syms_of_term (void);
4343 extern _Noreturn
void fatal (const char *msgid
, ...)
4344 ATTRIBUTE_FORMAT_PRINTF (1, 2);
4346 /* Defined in terminal.c. */
4347 extern void syms_of_terminal (void);
4349 /* Defined in font.c. */
4350 extern void syms_of_font (void);
4351 extern void init_font (void);
4353 #ifdef HAVE_WINDOW_SYSTEM
4354 /* Defined in fontset.c. */
4355 extern void syms_of_fontset (void);
4358 /* Defined in gfilenotify.c */
4359 #ifdef HAVE_GFILENOTIFY
4360 extern void globals_of_gfilenotify (void);
4361 extern void syms_of_gfilenotify (void);
4364 /* Defined in inotify.c */
4366 extern void syms_of_inotify (void);
4369 #ifdef HAVE_W32NOTIFY
4370 /* Defined on w32notify.c. */
4371 extern void syms_of_w32notify (void);
4374 /* Defined in xfaces.c. */
4375 extern Lisp_Object Vface_alternative_font_family_alist
;
4376 extern Lisp_Object Vface_alternative_font_registry_alist
;
4377 extern void syms_of_xfaces (void);
4379 #ifdef HAVE_X_WINDOWS
4380 /* Defined in xfns.c. */
4381 extern void syms_of_xfns (void);
4383 /* Defined in xsmfns.c. */
4384 extern void syms_of_xsmfns (void);
4386 /* Defined in xselect.c. */
4387 extern void syms_of_xselect (void);
4389 /* Defined in xterm.c. */
4390 extern void init_xterm (void);
4391 extern void syms_of_xterm (void);
4392 #endif /* HAVE_X_WINDOWS */
4394 #ifdef HAVE_WINDOW_SYSTEM
4395 /* Defined in xterm.c, nsterm.m, w32term.c. */
4396 extern char *x_get_keysym_name (int);
4397 #endif /* HAVE_WINDOW_SYSTEM */
4400 /* Defined in xml.c. */
4401 extern void syms_of_xml (void);
4402 extern void xml_cleanup_parser (void);
4406 /* Defined in decompress.c. */
4407 extern void syms_of_decompress (void);
4411 /* Defined in dbusbind.c. */
4412 void init_dbusbind (void);
4413 void syms_of_dbusbind (void);
4417 /* Defined in profiler.c. */
4418 extern bool profiler_memory_running
;
4419 extern void malloc_probe (size_t);
4420 extern void syms_of_profiler (void);
4424 /* Defined in msdos.c, w32.c. */
4425 extern char *emacs_root_dir (void);
4428 /* Defined in lastfile.c. */
4429 extern char my_edata
[];
4430 extern char my_endbss
[];
4431 extern char *my_endbss_static
;
4433 /* True means ^G can quit instantly. */
4434 extern bool immediate_quit
;
4436 extern void *xmalloc (size_t) ATTRIBUTE_MALLOC_SIZE ((1));
4437 extern void *xzalloc (size_t) ATTRIBUTE_MALLOC_SIZE ((1));
4438 extern void *xrealloc (void *, size_t) ATTRIBUTE_ALLOC_SIZE ((2));
4439 extern void xfree (void *);
4440 extern void *xnmalloc (ptrdiff_t, ptrdiff_t) ATTRIBUTE_MALLOC_SIZE ((1,2));
4441 extern void *xnrealloc (void *, ptrdiff_t, ptrdiff_t)
4442 ATTRIBUTE_ALLOC_SIZE ((2,3));
4443 extern void *xpalloc (void *, ptrdiff_t *, ptrdiff_t, ptrdiff_t, ptrdiff_t);
4445 extern char *xstrdup (const char *) ATTRIBUTE_MALLOC
;
4446 extern char *xlispstrdup (Lisp_Object
) ATTRIBUTE_MALLOC
;
4447 extern void dupstring (char **, char const *);
4449 /* Make DEST a copy of STRING's data. Return a pointer to DEST's terminating
4450 null byte. This is like stpcpy, except the source is a Lisp string. */
4453 lispstpcpy (char *dest
, Lisp_Object string
)
4455 ptrdiff_t len
= SBYTES (string
);
4456 memcpy (dest
, SDATA (string
), len
+ 1);
4460 extern void xputenv (const char *);
4462 extern char *egetenv_internal (const char *, ptrdiff_t);
4465 egetenv (const char *var
)
4467 /* When VAR is a string literal, strlen can be optimized away. */
4468 return egetenv_internal (var
, strlen (var
));
4471 /* Set up the name of the machine we're running on. */
4472 extern void init_system_name (void);
4474 /* Return the absolute value of X. X should be a signed integer
4475 expression without side effects, and X's absolute value should not
4476 exceed the maximum for its promoted type. This is called 'eabs'
4477 because 'abs' is reserved by the C standard. */
4478 #define eabs(x) ((x) < 0 ? -(x) : (x))
4480 /* Return a fixnum or float, depending on whether VAL fits in a Lisp
4483 #define make_fixnum_or_float(val) \
4484 (FIXNUM_OVERFLOW_P (val) ? make_float (val) : make_number (val))
4486 /* SAFE_ALLOCA normally allocates memory on the stack, but if size is
4487 larger than MAX_ALLOCA, use xmalloc to avoid overflowing the stack. */
4489 enum MAX_ALLOCA
{ MAX_ALLOCA
= 16 * 1024 };
4491 extern void *record_xmalloc (size_t) ATTRIBUTE_ALLOC_SIZE ((1));
4493 #define USE_SAFE_ALLOCA \
4494 ptrdiff_t sa_avail = MAX_ALLOCA; \
4495 ptrdiff_t sa_count = SPECPDL_INDEX (); bool sa_must_free = false
4497 #define AVAIL_ALLOCA(size) (sa_avail -= (size), alloca (size))
4499 /* SAFE_ALLOCA allocates a simple buffer. */
4501 #define SAFE_ALLOCA(size) ((size) <= sa_avail \
4502 ? AVAIL_ALLOCA (size) \
4503 : (sa_must_free = true, record_xmalloc (size)))
4505 /* SAFE_NALLOCA sets BUF to a newly allocated array of MULTIPLIER *
4506 NITEMS items, each of the same type as *BUF. MULTIPLIER must
4507 positive. The code is tuned for MULTIPLIER being a constant. */
4509 #define SAFE_NALLOCA(buf, multiplier, nitems) \
4511 if ((nitems) <= sa_avail / sizeof *(buf) / (multiplier)) \
4512 (buf) = AVAIL_ALLOCA (sizeof *(buf) * (multiplier) * (nitems)); \
4515 (buf) = xnmalloc (nitems, sizeof *(buf) * (multiplier)); \
4516 sa_must_free = true; \
4517 record_unwind_protect_ptr (xfree, buf); \
4521 /* SAFE_ALLOCA_STRING allocates a C copy of a Lisp string. */
4523 #define SAFE_ALLOCA_STRING(ptr, string) \
4525 (ptr) = SAFE_ALLOCA (SBYTES (string) + 1); \
4526 memcpy (ptr, SDATA (string), SBYTES (string) + 1); \
4529 /* SAFE_FREE frees xmalloced memory and enables GC as needed. */
4531 #define SAFE_FREE() \
4533 if (sa_must_free) { \
4534 sa_must_free = false; \
4535 unbind_to (sa_count, Qnil); \
4540 /* Return floor (NBYTES / WORD_SIZE). */
4543 lisp_word_count (ptrdiff_t nbytes
)
4548 case 2: return nbytes
>> 1;
4549 case 4: return nbytes
>> 2;
4550 case 8: return nbytes
>> 3;
4551 case 16: return nbytes
>> 4;
4553 return nbytes
/ word_size
- (nbytes
% word_size
< 0);
4556 /* SAFE_ALLOCA_LISP allocates an array of Lisp_Objects. */
4558 #define SAFE_ALLOCA_LISP(buf, nelt) \
4560 if ((nelt) <= lisp_word_count (sa_avail)) \
4561 (buf) = AVAIL_ALLOCA ((nelt) * word_size); \
4562 else if ((nelt) <= min (PTRDIFF_MAX, SIZE_MAX) / word_size) \
4565 (buf) = xmalloc ((nelt) * word_size); \
4566 arg_ = make_save_memory (buf, nelt); \
4567 sa_must_free = true; \
4568 record_unwind_protect (free_save_value, arg_); \
4571 memory_full (SIZE_MAX); \
4575 /* If USE_STACK_LISP_OBJECTS, define macros that and functions that allocate
4576 block-scoped conses and strings. These objects are not
4577 managed by the garbage collector, so they are dangerous: passing them
4578 out of their scope (e.g., to user code) results in undefined behavior.
4579 Conversely, they have better performance because GC is not involved.
4581 This feature is experimental and requires careful debugging.
4582 Build with CPPFLAGS='-DUSE_STACK_LISP_OBJECTS=0' to disable it. */
4584 #ifndef USE_STACK_LISP_OBJECTS
4585 # define USE_STACK_LISP_OBJECTS true
4588 /* USE_STACK_LISP_OBJECTS requires GC_MARK_STACK == GC_MAKE_GCPROS_NOOPS. */
4590 #if GC_MARK_STACK != GC_MAKE_GCPROS_NOOPS
4591 # undef USE_STACK_LISP_OBJECTS
4592 # define USE_STACK_LISP_OBJECTS false
4595 #ifdef GC_CHECK_STRING_BYTES
4596 enum { defined_GC_CHECK_STRING_BYTES
= true };
4598 enum { defined_GC_CHECK_STRING_BYTES
= false };
4601 /* Struct inside unions that are typically no larger and aligned enough. */
4606 double d
; intmax_t i
; void *p
;
4609 union Aligned_String
4611 struct Lisp_String s
;
4612 double d
; intmax_t i
; void *p
;
4615 /* True for stack-based cons and string implementations, respectively.
4616 Use stack-based strings only if stack-based cons also works.
4617 Otherwise, STACK_CONS would create heap-based cons cells that
4618 could point to stack-based strings, which is a no-no. */
4622 USE_STACK_CONS
= (USE_STACK_LISP_OBJECTS
4623 && alignof (union Aligned_Cons
) % GCALIGNMENT
== 0),
4624 USE_STACK_STRING
= (USE_STACK_CONS
4625 && !defined_GC_CHECK_STRING_BYTES
4626 && alignof (union Aligned_String
) % GCALIGNMENT
== 0)
4629 /* Auxiliary macros used for auto allocation of Lisp objects. Please
4630 use these only in macros like AUTO_CONS that declare a local
4631 variable whose lifetime will be clear to the programmer. */
4632 #define STACK_CONS(a, b) \
4633 make_lisp_ptr (&(union Aligned_Cons) { { a, { b } } }.s, Lisp_Cons)
4634 #define AUTO_CONS_EXPR(a, b) \
4635 (USE_STACK_CONS ? STACK_CONS (a, b) : Fcons (a, b))
4637 /* Declare NAME as an auto Lisp cons or short list if possible, a
4638 GC-based one otherwise. This is in the sense of the C keyword
4639 'auto'; i.e., the object has the lifetime of the containing block.
4640 The resulting object should not be made visible to user Lisp code. */
4642 #define AUTO_CONS(name, a, b) Lisp_Object name = AUTO_CONS_EXPR (a, b)
4643 #define AUTO_LIST1(name, a) \
4644 Lisp_Object name = (USE_STACK_CONS ? STACK_CONS (a, Qnil) : list1 (a))
4645 #define AUTO_LIST2(name, a, b) \
4646 Lisp_Object name = (USE_STACK_CONS \
4647 ? STACK_CONS (a, STACK_CONS (b, Qnil)) \
4649 #define AUTO_LIST3(name, a, b, c) \
4650 Lisp_Object name = (USE_STACK_CONS \
4651 ? STACK_CONS (a, STACK_CONS (b, STACK_CONS (c, Qnil))) \
4653 #define AUTO_LIST4(name, a, b, c, d) \
4656 ? STACK_CONS (a, STACK_CONS (b, STACK_CONS (c, \
4657 STACK_CONS (d, Qnil)))) \
4658 : list4 (a, b, c, d))
4660 /* Check whether stack-allocated strings are ASCII-only. */
4662 #if defined (ENABLE_CHECKING) && USE_STACK_LISP_OBJECTS
4663 extern const char *verify_ascii (const char *);
4665 # define verify_ascii(str) (str)
4668 /* Declare NAME as an auto Lisp string if possible, a GC-based one if not.
4669 Take its value from STR. STR is not necessarily copied and should
4670 contain only ASCII characters. The resulting Lisp string should
4671 not be modified or made visible to user code. */
4673 #define AUTO_STRING(name, str) \
4674 Lisp_Object name = \
4677 ((&(union Aligned_String) \
4678 {{strlen (str), -1, 0, (unsigned char *) verify_ascii (str)}}.s), \
4680 : build_string (verify_ascii (str)))
4682 /* Loop over all tails of a list, checking for cycles.
4683 FIXME: Make tortoise and n internal declarations.
4684 FIXME: Unroll the loop body so we don't need `n'. */
4685 #define FOR_EACH_TAIL(hare, list, tortoise, n) \
4686 for ((tortoise) = (hare) = (list), (n) = true; \
4688 (hare = XCDR (hare), (n) = !(n), \
4690 ? (EQ (hare, tortoise) \
4691 ? xsignal1 (Qcircular_list, list) \
4693 /* Move tortoise before the next iteration, in case */ \
4694 /* the next iteration does an Fsetcdr. */ \
4695 : (void) ((tortoise) = XCDR (tortoise)))))
4697 /* Do a `for' loop over alist values. */
4699 #define FOR_EACH_ALIST_VALUE(head_var, list_var, value_var) \
4700 for ((list_var) = (head_var); \
4701 (CONSP (list_var) && ((value_var) = XCDR (XCAR (list_var)), true)); \
4702 (list_var) = XCDR (list_var))
4704 /* Check whether it's time for GC, and run it if so. */
4709 if ((consing_since_gc
> gc_cons_threshold
4710 && consing_since_gc
> gc_relative_threshold
)
4711 || (!NILP (Vmemory_full
)
4712 && consing_since_gc
> memory_full_cons_threshold
))
4713 Fgarbage_collect ();
4717 functionp (Lisp_Object object
)
4719 if (SYMBOLP (object
) && !NILP (Ffboundp (object
)))
4721 object
= Findirect_function (object
, Qt
);
4723 if (CONSP (object
) && EQ (XCAR (object
), Qautoload
))
4725 /* Autoloaded symbols are functions, except if they load
4726 macros or keymaps. */
4728 for (i
= 0; i
< 4 && CONSP (object
); i
++)
4729 object
= XCDR (object
);
4731 return ! (CONSP (object
) && !NILP (XCAR (object
)));
4736 return XSUBR (object
)->max_args
!= UNEVALLED
;
4737 else if (COMPILEDP (object
))
4739 else if (CONSP (object
))
4741 Lisp_Object car
= XCAR (object
);
4742 return EQ (car
, Qlambda
) || EQ (car
, Qclosure
);
4750 #endif /* EMACS_LISP_H */