1 /* Fundamental definitions for GNU Emacs Lisp interpreter.
3 Copyright (C) 1985-1987, 1993-1995, 1997-2014 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 ID_val (some integer preprocessor expression)
41 DEFINE_GDB_SYMBOL_ENUM (ID)
43 DEFINE_GDB_SYMBOL_BEGIN (TYPE, ID)
45 DEFINE_GDB_SYMBOL_END (ID)
48 This hack is for the benefit of compilers that do not make macro
49 definitions visible to the debugger. It's used for symbols that
50 .gdbinit needs, symbols whose values may not fit in 'int' (where an
53 Some GCC versions before GCC 4.2 omit enums in debugging output;
54 see GCC bug 23336. So don't use enums with older GCC. */
56 #if !defined __GNUC__ || 4 < __GNUC__ + (2 <= __GNUC_MINOR__)
57 # define ENUMABLE(val) (INT_MIN <= (val) && (val) <= INT_MAX)
59 # define ENUMABLE(val) 0
62 #define DEFINE_GDB_SYMBOL_ENUM(id) enum { id = id##_val };
63 #if defined MAIN_PROGRAM
64 # define DEFINE_GDB_SYMBOL_BEGIN(type, id) type const id EXTERNALLY_VISIBLE
65 # define DEFINE_GDB_SYMBOL_END(id) = id;
67 # define DEFINE_GDB_SYMBOL_BEGIN(type, id)
68 # define DEFINE_GDB_SYMBOL_END(val)
71 /* The ubiquitous max and min macros. */
74 #define max(a, b) ((a) > (b) ? (a) : (b))
75 #define min(a, b) ((a) < (b) ? (a) : (b))
77 /* Number of elements in an array. */
78 #define ARRAYELTS(arr) (sizeof (arr) / sizeof (arr)[0])
80 /* Number of bits in a Lisp_Object tag. */
81 DEFINE_GDB_SYMBOL_BEGIN (int, GCTYPEBITS
)
83 DEFINE_GDB_SYMBOL_END (GCTYPEBITS
)
85 /* The number of bits needed in an EMACS_INT over and above the number
86 of bits in a pointer. This is 0 on systems where:
87 1. We can specify multiple-of-8 alignment on static variables.
88 2. We know malloc returns a multiple of 8. */
89 #if (defined alignas \
90 && (defined GNU_MALLOC || defined DOUG_LEA_MALLOC || defined __GLIBC__ \
91 || defined DARWIN_OS || defined __sun || defined __MINGW32__))
92 # define NONPOINTER_BITS 0
94 # define NONPOINTER_BITS GCTYPEBITS
97 /* EMACS_INT - signed integer wide enough to hold an Emacs value
98 EMACS_INT_MAX - maximum value of EMACS_INT; can be used in #if
99 pI - printf length modifier for EMACS_INT
100 EMACS_UINT - unsigned variant of EMACS_INT */
102 typedef scm_t_signed_bits EMACS_INT
;
103 typedef scm_t_bits EMACS_UINT
;
104 #define EMACS_INT_MAX SCM_T_SIGNED_BITS_MAX
106 #if INTPTR_MAX == INT_MAX
108 #elif INTPTR_MAX == LONG_MAX
110 #elif INTPTR_MAX == LLONG_MAX
112 #elif INTPTR_MAX == INTMAX_MAX
115 #error "Cannot determine length modifier for EMACS_INT"
118 /* Number of bits to put in each character in the internal representation
119 of bool vectors. This should not vary across implementations. */
120 enum { BOOL_VECTOR_BITS_PER_CHAR
=
121 #define BOOL_VECTOR_BITS_PER_CHAR 8
122 BOOL_VECTOR_BITS_PER_CHAR
125 /* An unsigned integer type representing a fixed-length bit sequence,
126 suitable for bool vector words, GC mark bits, etc. Normally it is size_t
127 for speed, but it is unsigned char on weird platforms. */
128 #if BOOL_VECTOR_BITS_PER_CHAR == CHAR_BIT
129 typedef size_t bits_word
;
130 # define BITS_WORD_MAX SIZE_MAX
131 enum { BITS_PER_BITS_WORD
= CHAR_BIT
* sizeof (bits_word
) };
133 typedef unsigned char bits_word
;
134 # define BITS_WORD_MAX ((1u << BOOL_VECTOR_BITS_PER_CHAR) - 1)
135 enum { BITS_PER_BITS_WORD
= BOOL_VECTOR_BITS_PER_CHAR
};
137 verify (BITS_WORD_MAX
>> (BITS_PER_BITS_WORD
- 1) == 1);
139 /* Number of bits in some machine integer types. */
142 BITS_PER_CHAR
= CHAR_BIT
,
143 BITS_PER_SHORT
= CHAR_BIT
* sizeof (short),
144 BITS_PER_LONG
= CHAR_BIT
* sizeof (long int),
145 BITS_PER_EMACS_INT
= CHAR_BIT
* sizeof (EMACS_INT
)
148 /* printmax_t and uprintmax_t are types for printing large integers.
149 These are the widest integers that are supported for printing.
150 pMd etc. are conversions for printing them.
151 On C99 hosts, there's no problem, as even the widest integers work.
152 Fall back on EMACS_INT on pre-C99 hosts. */
154 typedef intmax_t printmax_t
;
155 typedef uintmax_t uprintmax_t
;
159 typedef EMACS_INT printmax_t
;
160 typedef EMACS_UINT uprintmax_t
;
165 /* Use pD to format ptrdiff_t values, which suffice for indexes into
166 buffers and strings. Emacs never allocates objects larger than
167 PTRDIFF_MAX bytes, as they cause problems with pointer subtraction.
168 In C99, pD can always be "t"; configure it here for the sake of
169 pre-C99 libraries such as glibc 2.0 and Solaris 8. */
170 #if PTRDIFF_MAX == INT_MAX
172 #elif PTRDIFF_MAX == LONG_MAX
174 #elif PTRDIFF_MAX == LLONG_MAX
180 /* Extra internal type checking? */
182 /* Define Emacs versions of <assert.h>'s 'assert (COND)' and <verify.h>'s
183 'assume (COND)'. COND should be free of side effects, as it may or
184 may not be evaluated.
186 'eassert (COND)' checks COND at runtime if ENABLE_CHECKING is
187 defined and suppress_checking is false, and does nothing otherwise.
188 Emacs dies if COND is checked and is false. The suppress_checking
189 variable is initialized to 0 in alloc.c. Set it to 1 using a
190 debugger to temporarily disable aborting on detected internal
191 inconsistencies or error conditions.
193 In some cases, a good compiler may be able to optimize away the
194 eassert macro even if ENABLE_CHECKING is true, e.g., if XSTRING (x)
195 uses eassert to test STRINGP (x), but a particular use of XSTRING
196 is invoked only after testing that STRINGP (x) is true, making the
199 eassume is like eassert except that it also causes the compiler to
200 assume that COND is true afterwards, regardless of whether runtime
201 checking is enabled. This can improve performance in some cases,
202 though it can degrade performance in others. It's often suboptimal
203 for COND to call external functions or access volatile storage. */
205 #ifndef ENABLE_CHECKING
206 # define eassert(cond) ((void) (false && (cond))) /* Check COND compiles. */
207 # define eassume(cond) assume (cond)
208 #else /* ENABLE_CHECKING */
210 extern _Noreturn
void die (const char *, const char *, int);
212 extern bool suppress_checking EXTERNALLY_VISIBLE
;
214 # define eassert(cond) \
215 (suppress_checking || (cond) \
217 : die (# cond, __FILE__, __LINE__))
218 # define eassume(cond) \
223 : die (# cond, __FILE__, __LINE__))
224 #endif /* ENABLE_CHECKING */
229 /* 2**GCTYPEBITS. This must be a macro that expands to a literal
230 integer constant, for MSVC. */
231 #define GCALIGNMENT 8
233 /* Number of bits in a Lisp fixnum value, not counting the tag. */
234 FIXNUM_BITS
= SCM_I_FIXNUM_BIT
237 #if GCALIGNMENT != 1 << GCTYPEBITS
238 # error "GCALIGNMENT and GCTYPEBITS are inconsistent"
241 DEFINE_GDB_SYMBOL_BEGIN (bool, USE_LSB_TAG
)
242 #define USE_LSB_TAG 1
243 DEFINE_GDB_SYMBOL_END (USE_LSB_TAG
)
246 # define alignas(alignment) /* empty */
248 # error "USE_LSB_TAG requires alignas"
252 /* Some operations are so commonly executed that they are implemented
253 as macros, not functions, because otherwise runtime performance would
254 suffer too much when compiling with GCC without optimization.
255 There's no need to inline everything, just the operations that
256 would otherwise cause a serious performance problem.
258 For each such operation OP, define a macro lisp_h_OP that contains
259 the operation's implementation. That way, OP can be implemented
260 via a macro definition like this:
262 #define OP(x) lisp_h_OP (x)
264 and/or via a function definition like this:
266 LISP_MACRO_DEFUN (OP, Lisp_Object, (Lisp_Object x), (x))
268 which macro-expands to this:
270 Lisp_Object (OP) (Lisp_Object x) { return lisp_h_OP (x); }
272 without worrying about the implementations diverging, since
273 lisp_h_OP defines the actual implementation. The lisp_h_OP macros
274 are intended to be private to this include file, and should not be
277 FIXME: Remove the lisp_h_OP macros, and define just the inline OP
278 functions, once most developers have access to GCC 4.8 or later and
279 can use "gcc -Og" to debug. Maybe in the year 2016. See
282 Commentary for these macros can be found near their corresponding
285 #define SMOB_PTR(a) ((void *) SCM_SMOB_DATA (a))
286 #define SMOB_TYPEP(x, tag) (x && SCM_SMOB_PREDICATE (tag, x))
287 #define lisp_h_XLI(o) (SCM_UNPACK (o))
288 #define lisp_h_XIL(i) (SCM_PACK (i))
289 #define lisp_h_CHECK_LIST_CONS(x, y) CHECK_TYPE (CONSP (x), Qlistp, y)
290 #define lisp_h_CHECK_NUMBER(x) CHECK_TYPE (INTEGERP (x), Qintegerp, x)
291 #define lisp_h_CHECK_SYMBOL(x) CHECK_TYPE (SYMBOLP (x), Qsymbolp, x)
292 #define lisp_h_CHECK_TYPE(ok, predicate, x) \
293 ((ok) ? (void) 0 : (void) wrong_type_argument (predicate, x))
294 #define lisp_h_CONSP(x) (x && scm_is_pair (x))
295 #define lisp_h_EQ(x, y) (scm_is_eq (x, y))
296 #define lisp_h_FLOATP(x) (x && SCM_INEXACTP (x))
297 #define lisp_h_INTEGERP(x) (SCM_I_INUMP (x))
298 #define lisp_h_MARKERP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Marker)
299 #define lisp_h_MISCP(x) (SMOB_TYPEP (x, lisp_misc_tag))
300 #define lisp_h_NILP(x) (scm_is_lisp_false (x))
301 #define lisp_h_SET_SYMBOL_VAL(sym, v) \
302 (eassert (SYMBOL_REDIRECT (sym) == SYMBOL_PLAINVAL), \
303 scm_c_vector_set_x (sym, 4, v))
304 #define lisp_h_SYMBOL_CONSTANT_P(sym) (SYMBOL_CONSTANT (XSYMBOL (sym)))
305 #define lisp_h_SYMBOL_VAL(sym) \
306 (eassert (SYMBOL_REDIRECT (sym) == SYMBOL_PLAINVAL), \
307 scm_c_vector_ref (sym, 4))
308 #define lisp_h_SYMBOLP(x) \
309 (x && (scm_is_symbol (x) || EQ (x, Qnil) || EQ (x, Qt)))
310 #define lisp_h_VECTORLIKEP(x) (SMOB_TYPEP (x, lisp_vectorlike_tag))
311 #define lisp_h_XCAR(c) (scm_car (c))
312 #define lisp_h_XCDR(c) (scm_cdr (c))
313 #define lisp_h_XHASH(a) (SCM_UNPACK (a))
315 /* Define NAME as a lisp.h inline function that returns TYPE and has
316 arguments declared as ARGDECLS and passed as ARGS. ARGDECLS and
317 ARGS should be parenthesized. Implement the function by calling
319 #define LISP_MACRO_DEFUN(name, type, argdecls, args) \
320 INLINE type (name) argdecls { return lisp_h_##name args; }
322 /* like LISP_MACRO_DEFUN, except NAME returns void. */
323 #define LISP_MACRO_DEFUN_VOID(name, argdecls, args) \
324 INLINE void (name) argdecls { lisp_h_##name args; }
327 /* Define the fundamental Lisp data structures. */
329 /* This is the set of Lisp data types. If you want to define a new
330 data type, read the comments after Lisp_Fwd_Type definition
333 #define INTMASK SCM_MOST_POSITIVE_FIXNUM
334 #define case_Lisp_Int case Lisp_Int
336 /* Idea stolen from GDB. Pedantic GCC complains about enum bitfields,
337 MSVC doesn't support them, and xlc and Oracle Studio c99 complain
338 vociferously about them. */
339 #if (defined __STRICT_ANSI__ || defined _MSC_VER || defined __IBMC__ \
340 || (defined __SUNPRO_C && __STDC__))
341 #define ENUM_BF(TYPE) unsigned int
343 #define ENUM_BF(TYPE) enum TYPE
346 scm_t_bits lisp_misc_tag
;
347 scm_t_bits lisp_string_tag
;
348 scm_t_bits lisp_vectorlike_tag
;
354 /* Integer. XINT (obj) is the integer value. */
357 /* Symbol. XSYMBOL (object) points to a struct Lisp_Symbol. */
360 /* Miscellaneous. XMISC (object) points to a union Lisp_Misc,
361 whose first member indicates the subtype. */
364 /* String. XSTRING (object) points to a struct Lisp_String.
365 The length of the string, and its contents, are stored therein. */
368 /* Vector of Lisp objects, or something resembling it.
369 XVECTOR (object) points to a struct Lisp_Vector, which contains
370 the size and contents. The size field also contains the type
371 information, if it's not a real vector object. */
374 /* Cons. XCONS (object) points to a struct Lisp_Cons. */
380 /* This is the set of data types that share a common structure.
381 The first member of the structure is a type code from this set.
382 The enum values are arbitrary, but we'll use large numbers to make it
383 more likely that we'll spot the error if a random word in memory is
384 mistakenly interpreted as a Lisp_Misc. */
387 Lisp_Misc_Free
= 0x5eab,
390 Lisp_Misc_Save_Value
,
391 /* Currently floats are not a misc type,
392 but let's define this in case we want to change that. */
394 /* This is not a type code. It is for range checking. */
398 /* These are the types of forwarding objects used in the value slot
399 of symbols for special built-in variables whose value is stored in
403 Lisp_Fwd_Int
, /* Fwd to a C `int' variable. */
404 Lisp_Fwd_Bool
, /* Fwd to a C boolean var. */
405 Lisp_Fwd_Obj
, /* Fwd to a C Lisp_Object variable. */
406 Lisp_Fwd_Buffer_Obj
, /* Fwd to a Lisp_Object field of buffers. */
407 Lisp_Fwd_Kboard_Obj
/* Fwd to a Lisp_Object field of kboards. */
410 typedef SCM Lisp_Object
;
412 #define LISP_INITIALLY_ZERO SCM_INUM0
414 /* Convert a Lisp_Object to the corresponding EMACS_INT and vice versa.
415 At the machine level, these operations are no-ops. */
416 LISP_MACRO_DEFUN (XLI
, EMACS_INT
, (Lisp_Object o
), (o
))
417 LISP_MACRO_DEFUN (XIL
, Lisp_Object
, (EMACS_INT i
), (i
))
419 /* In the size word of a struct Lisp_Vector, this bit means it's really
420 some other vector-like object. */
421 #define PSEUDOVECTOR_FLAG_val (PTRDIFF_MAX - PTRDIFF_MAX / 2)
422 #if ENUMABLE (PSEUDOVECTOR_FLAG_val)
423 DEFINE_GDB_SYMBOL_ENUM (PSEUDOVECTOR_FLAG
)
425 DEFINE_GDB_SYMBOL_BEGIN (ptrdiff_t, PSEUDOVECTOR_FLAG
)
426 # define PSEUDOVECTOR_FLAG PSEUDOVECTOR_FLAG_val
427 DEFINE_GDB_SYMBOL_END (PSEUDOVECTOR_FLAG
)
430 /* In a pseudovector, the size field actually contains a word with one
431 PSEUDOVECTOR_FLAG bit set, and one of the following values extracted
432 with PVEC_TYPE_MASK to indicate the actual type. */
444 PVEC_WINDOW_CONFIGURATION
,
446 /* These should be last, check internal_equal to see why. */
450 PVEC_FONT
/* Should be last because it's used for range checking. */
455 /* For convenience, we also store the number of elements in these bits.
456 Note that this size is not necessarily the memory-footprint size, but
457 only the number of Lisp_Object fields (that need to be traced by GC).
458 The distinction is used, e.g., by Lisp_Process, which places extra
459 non-Lisp_Object fields at the end of the structure. */
460 PSEUDOVECTOR_SIZE_BITS
= 12,
461 PSEUDOVECTOR_SIZE_MASK
= (1 << PSEUDOVECTOR_SIZE_BITS
) - 1,
463 /* To calculate the memory footprint of the pseudovector, it's useful
464 to store the size of non-Lisp area in word_size units here. */
465 PSEUDOVECTOR_REST_BITS
= 12,
466 PSEUDOVECTOR_REST_MASK
= (((1 << PSEUDOVECTOR_REST_BITS
) - 1)
467 << PSEUDOVECTOR_SIZE_BITS
),
469 /* Used to extract pseudovector subtype information. */
470 PSEUDOVECTOR_AREA_BITS
= PSEUDOVECTOR_SIZE_BITS
+ PSEUDOVECTOR_REST_BITS
,
471 PVEC_TYPE_MASK
= 0x3f << PSEUDOVECTOR_AREA_BITS
474 /* These functions extract various sorts of values from a Lisp_Object.
475 For example, if tem is a Lisp_Object whose type is Lisp_Cons,
476 XCONS (tem) is the struct Lisp_Cons * pointing to the memory for
479 /* Largest and smallest representable fixnum values. These are the C
480 values. They are macros for use in static initializers. */
481 #define MOST_POSITIVE_FIXNUM SCM_MOST_POSITIVE_FIXNUM
482 #define MOST_NEGATIVE_FIXNUM SCM_MOST_NEGATIVE_FIXNUM
484 /* Make a Lisp integer representing the value of the low order
487 make_number (EMACS_INT n
)
489 return SCM_I_MAKINUM (n
);
492 /* Extract A's value as a signed integer. */
496 return SCM_I_INUM (a
);
499 /* Like XINT (A), but may be faster. A must be nonnegative.
500 If ! USE_LSB_TAG, this takes advantage of the fact that Lisp
501 integers have zero-bits in their tags. */
503 XFASTINT (Lisp_Object a
)
505 EMACS_INT n
= XINT (a
);
510 /* Extract A's value as an unsigned integer. */
512 XUINT (Lisp_Object a
)
514 return SCM_I_INUM (a
);
517 /* Return A's (Lisp-integer sized) hash. Happens to be like XUINT
518 right now, but XUINT should only be applied to objects we know are
520 LISP_MACRO_DEFUN (XHASH
, EMACS_INT
, (Lisp_Object a
), (a
))
522 /* Like make_number (N), but may be faster. N must be in nonnegative range. */
524 make_natnum (EMACS_INT n
)
526 eassert (0 <= n
&& n
<= MOST_POSITIVE_FIXNUM
);
527 return make_number (n
);
530 /* Return true if X and Y are the same object. */
531 LISP_MACRO_DEFUN (EQ
, bool, (Lisp_Object x
, Lisp_Object y
), (x
, y
))
533 /* Value is true if I doesn't fit into a Lisp fixnum. It is
534 written this way so that it also works if I is of unsigned
535 type or if I is a NaN. */
537 #define FIXNUM_OVERFLOW_P(i) \
538 (! ((0 <= (i) || MOST_NEGATIVE_FIXNUM <= (i)) && (i) <= MOST_POSITIVE_FIXNUM))
541 clip_to_bounds (ptrdiff_t lower
, EMACS_INT num
, ptrdiff_t upper
)
543 return num
< lower
? lower
: num
<= upper
? num
: upper
;
546 /* Forward declarations. */
548 /* Defined in this file. */
550 INLINE
bool BOOL_VECTOR_P (Lisp_Object
);
551 INLINE
bool BUFFER_OBJFWDP (union Lisp_Fwd
*);
552 INLINE
bool BUFFERP (Lisp_Object
);
553 INLINE
bool CHAR_TABLE_P (Lisp_Object
);
554 INLINE Lisp_Object
CHAR_TABLE_REF_ASCII (Lisp_Object
, ptrdiff_t);
555 INLINE
bool (CONSP
) (Lisp_Object
);
556 INLINE
bool (FLOATP
) (Lisp_Object
);
557 INLINE
bool functionp (Lisp_Object
);
558 INLINE
bool (INTEGERP
) (Lisp_Object
);
559 INLINE
bool (MARKERP
) (Lisp_Object
);
560 INLINE
bool (MISCP
) (Lisp_Object
);
561 INLINE
bool (NILP
) (Lisp_Object
);
562 INLINE
bool OVERLAYP (Lisp_Object
);
563 INLINE
bool PROCESSP (Lisp_Object
);
564 INLINE
bool PSEUDOVECTORP (Lisp_Object
, int);
565 INLINE
bool SAVE_VALUEP (Lisp_Object
);
566 INLINE
void set_sub_char_table_contents (Lisp_Object
, ptrdiff_t,
568 INLINE
bool STRINGP (Lisp_Object
);
569 INLINE
bool SUB_CHAR_TABLE_P (Lisp_Object
);
570 INLINE
bool (SYMBOLP
) (Lisp_Object
);
571 INLINE
bool (VECTORLIKEP
) (Lisp_Object
);
572 INLINE
bool WINDOWP (Lisp_Object
);
573 INLINE
struct Lisp_Save_Value
*XSAVE_VALUE (Lisp_Object
);
575 /* Defined in chartab.c. */
576 extern Lisp_Object
char_table_ref (Lisp_Object
, int);
577 extern void char_table_set (Lisp_Object
, int, Lisp_Object
);
578 extern int char_table_translate (Lisp_Object
, int);
580 /* Defined in data.c. */
581 extern Lisp_Object Qarrayp
, Qbufferp
, Qbuffer_or_string_p
, Qchar_table_p
;
582 extern Lisp_Object Qconsp
, Qfloatp
, Qintegerp
, Qlambda
, Qlistp
, Qmarkerp
, Qnil
;
583 extern Lisp_Object Qnumberp
, Qstringp
, Qsymbolp
, Qt
, Qvectorp
;
584 extern Lisp_Object Qbool_vector_p
;
585 extern Lisp_Object Qvector_or_char_table_p
, Qwholenump
;
586 extern Lisp_Object Qwindow
;
587 extern _Noreturn Lisp_Object
wrong_type_argument (Lisp_Object
, Lisp_Object
);
589 /* Defined in emacs.c. */
590 extern bool might_dump
;
591 /* True means Emacs has already been initialized.
592 Used during startup to detect startup of dumped Emacs. */
593 extern bool initialized
;
595 /* Defined in eval.c. */
596 extern Lisp_Object Qautoload
;
598 /* Defined in floatfns.c. */
599 extern double extract_float (Lisp_Object
);
601 /* Defined in process.c. */
602 extern Lisp_Object Qprocessp
;
604 /* Defined in window.c. */
605 extern Lisp_Object Qwindowp
;
607 /* Defined in xdisp.c. */
608 extern Lisp_Object Qimage
;
610 /* Extract A's type. */
611 INLINE
enum Lisp_Type
612 XTYPE (Lisp_Object o
)
616 else if (SYMBOLP (o
))
620 else if (STRINGP (o
))
622 else if (VECTORLIKEP (o
))
623 return Lisp_Vectorlike
;
632 /* Extract a value or address from a Lisp_Object. */
634 INLINE
struct Lisp_Vector
*
635 XVECTOR (Lisp_Object a
)
637 eassert (VECTORLIKEP (a
));
641 INLINE
struct Lisp_String
*
642 XSTRING (Lisp_Object a
)
644 eassert (STRINGP (a
));
648 extern void initialize_symbol (Lisp_Object
, Lisp_Object
);
649 INLINE Lisp_Object
build_string (const char *);
650 extern Lisp_Object symbol_module
;
651 extern Lisp_Object function_module
;
652 extern Lisp_Object plist_module
;
653 extern Lisp_Object Qt
, Qnil
, Qt_
, Qnil_
;
655 typedef Lisp_Object sym_t
;
657 INLINE sym_t
XSYMBOL (Lisp_Object a
);
659 /* Pseudovector types. */
661 INLINE
struct Lisp_Process
*
662 XPROCESS (Lisp_Object a
)
664 eassert (PROCESSP (a
));
668 INLINE
struct window
*
669 XWINDOW (Lisp_Object a
)
671 eassert (WINDOWP (a
));
675 INLINE
struct terminal
*
676 XTERMINAL (Lisp_Object a
)
681 INLINE
struct buffer
*
682 XBUFFER (Lisp_Object a
)
684 eassert (BUFFERP (a
));
688 INLINE
struct Lisp_Char_Table
*
689 XCHAR_TABLE (Lisp_Object a
)
691 eassert (CHAR_TABLE_P (a
));
695 INLINE
struct Lisp_Sub_Char_Table
*
696 XSUB_CHAR_TABLE (Lisp_Object a
)
698 eassert (SUB_CHAR_TABLE_P (a
));
702 INLINE
struct Lisp_Bool_Vector
*
703 XBOOL_VECTOR (Lisp_Object a
)
705 eassert (BOOL_VECTOR_P (a
));
709 #define XSETINT(a, b) ((a) = make_number (b))
710 #define XSETFASTINT(a, b) ((a) = make_natnum (b))
711 #define XSETVECTOR(a, b) ((a) = (b)->header.self)
712 #define XSETSTRING(a, b) ((a) = (b)->self)
713 #define XSETSYMBOL(a, b) ((a) = scm_c_vector_ref (b, 0))
714 #define XSETMISC(a, b) (a) = ((union Lisp_Misc *) (b))->u_any.self
715 #define make_lisp_proc(p) ((p)->header.self)
717 /* Pseudovector types. */
719 #define XSETPVECTYPE(v, code) \
720 ((v)->header.size |= PSEUDOVECTOR_FLAG | ((code) << PSEUDOVECTOR_AREA_BITS))
721 #define XSETPVECTYPESIZE(v, code, lispsize, restsize) \
722 ((v)->header.size = (PSEUDOVECTOR_FLAG \
723 | ((code) << PSEUDOVECTOR_AREA_BITS) \
724 | ((restsize) << PSEUDOVECTOR_SIZE_BITS) \
727 /* The cast to struct vectorlike_header * avoids aliasing issues. */
728 #define XSETPSEUDOVECTOR(a, b, code) \
729 XSETTYPED_PSEUDOVECTOR (a, b, \
730 (((struct vectorlike_header *) \
734 #define XSETTYPED_PSEUDOVECTOR(a, b, size, code) \
735 (XSETVECTOR (a, b), \
736 eassert ((size & (PSEUDOVECTOR_FLAG | PVEC_TYPE_MASK)) \
737 == (PSEUDOVECTOR_FLAG | (code << PSEUDOVECTOR_AREA_BITS))))
739 #define XSETWINDOW_CONFIGURATION(a, b) \
740 (XSETPSEUDOVECTOR (a, b, PVEC_WINDOW_CONFIGURATION))
741 #define XSETPROCESS(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_PROCESS))
742 #define XSETWINDOW(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_WINDOW))
743 #define XSETTERMINAL(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_TERMINAL))
744 #define XSETSUBR(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_SUBR))
745 #define XSETCOMPILED(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_COMPILED))
746 #define XSETBUFFER(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_BUFFER))
747 #define XSETCHAR_TABLE(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_CHAR_TABLE))
748 #define XSETBOOL_VECTOR(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_BOOL_VECTOR))
749 #define XSETSUB_CHAR_TABLE(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_SUB_CHAR_TABLE))
753 LISP_MACRO_DEFUN_VOID (CHECK_TYPE
,
754 (int ok
, Lisp_Object predicate
, Lisp_Object x
),
757 /* Deprecated and will be removed soon. */
759 #define INTERNAL_FIELD(field) field ## _
761 /* See the macros in intervals.h. */
763 typedef struct interval
*INTERVAL
;
769 INTERVAL intervals
; /* Text properties in this string. */
773 LISP_MACRO_DEFUN (XCAR
, Lisp_Object
, (Lisp_Object c
), (c
))
774 LISP_MACRO_DEFUN (XCDR
, Lisp_Object
, (Lisp_Object c
), (c
))
776 /* Use these to set the fields of a cons cell.
778 Note that both arguments may refer to the same object, so 'n'
779 should not be read after 'c' is first modified. */
781 XSETCAR (Lisp_Object c
, Lisp_Object n
)
783 scm_set_car_x (c
, n
);
786 XSETCDR (Lisp_Object c
, Lisp_Object n
)
788 scm_set_cdr_x (c
, n
);
791 /* Take the car or cdr of something whose type is not known. */
795 return (CONSP (c
) ? XCAR (c
)
797 : wrong_type_argument (Qlistp
, c
));
802 return (CONSP (c
) ? XCDR (c
)
804 : wrong_type_argument (Qlistp
, c
));
807 /* Take the car or cdr of something whose type is not known. */
809 CAR_SAFE (Lisp_Object c
)
811 return CONSP (c
) ? XCAR (c
) : Qnil
;
814 CDR_SAFE (Lisp_Object c
)
816 return CONSP (c
) ? XCDR (c
) : Qnil
;
819 /* In a string or vector, the sign bit of the `size' is the gc mark bit. */
821 /* True if STR is a multibyte string. */
823 STRING_MULTIBYTE (Lisp_Object str
)
825 return 0 <= XSTRING (str
)->size_byte
;
828 /* An upper bound on the number of bytes in a Lisp string, not
829 counting the terminating null. This a tight enough bound to
830 prevent integer overflow errors that would otherwise occur during
831 string size calculations. A string cannot contain more bytes than
832 a fixnum can represent, nor can it be so long that C pointer
833 arithmetic stops working on the string plus its terminating null.
834 Although the actual size limit (see STRING_BYTES_MAX in alloc.c)
835 may be a bit smaller than STRING_BYTES_BOUND, calculating it here
836 would expose alloc.c internal details that we'd rather keep
839 This is a macro for use in static initializers. The cast to
840 ptrdiff_t ensures that the macro is signed. */
841 #define STRING_BYTES_BOUND \
842 ((ptrdiff_t) min (MOST_POSITIVE_FIXNUM, min (SIZE_MAX, PTRDIFF_MAX) - 1))
844 /* Mark STR as a unibyte string. */
845 #define STRING_SET_UNIBYTE(STR) \
847 if (EQ (STR, empty_multibyte_string)) \
848 (STR) = empty_unibyte_string; \
850 XSTRING (STR)->size_byte = -1; \
853 /* Mark STR as a multibyte string. Assure that STR contains only
854 ASCII characters in advance. */
855 #define STRING_SET_MULTIBYTE(STR) \
857 if (EQ (STR, empty_unibyte_string)) \
858 (STR) = empty_multibyte_string; \
860 XSTRING (STR)->size_byte = XSTRING (STR)->size; \
863 /* Convenience functions for dealing with Lisp strings. */
865 INLINE
unsigned char *
866 SDATA (Lisp_Object string
)
868 return XSTRING (string
)->data
;
871 SSDATA (Lisp_Object string
)
873 /* Avoid "differ in sign" warnings. */
874 return (char *) SDATA (string
);
877 SREF (Lisp_Object string
, ptrdiff_t index
)
879 return SDATA (string
)[index
];
882 SSET (Lisp_Object string
, ptrdiff_t index
, unsigned char new)
884 SDATA (string
)[index
] = new;
887 SCHARS (Lisp_Object string
)
889 return XSTRING (string
)->size
;
893 STRING_BYTES (struct Lisp_String
*s
)
895 return s
->size_byte
< 0 ? s
->size
: s
->size_byte
;
899 SBYTES (Lisp_Object string
)
901 return STRING_BYTES (XSTRING (string
));
904 STRING_SET_CHARS (Lisp_Object string
, ptrdiff_t newsize
)
906 XSTRING (string
)->size
= newsize
;
909 /* Header of vector-like objects. This documents the layout constraints on
910 vectors and pseudovectors (objects of PVEC_xxx subtype). It also prevents
911 compilers from being fooled by Emacs's type punning: XSETPSEUDOVECTOR
912 and PSEUDOVECTORP cast their pointers to struct vectorlike_header *,
913 because when two such pointers potentially alias, a compiler won't
914 incorrectly reorder loads and stores to their size fields. See
916 struct vectorlike_header
920 /* This field contains various pieces of information:
921 - The second bit (PSEUDOVECTOR_FLAG) indicates whether this is a plain
922 vector (0) or a pseudovector (1).
923 - If PSEUDOVECTOR_FLAG is 0, the rest holds the size (number
924 of slots) of the vector.
925 - If PSEUDOVECTOR_FLAG is 1, the rest is subdivided into three fields:
926 - a) pseudovector subtype held in PVEC_TYPE_MASK field;
927 - b) number of Lisp_Objects slots at the beginning of the object
928 held in PSEUDOVECTOR_SIZE_MASK field. These objects are always
930 - c) size of the rest fields held in PSEUDOVECTOR_REST_MASK and
931 measured in word_size units. Rest fields may also include
932 Lisp_Objects, but these objects usually needs some special treatment
934 There are some exceptions. For PVEC_FREE, b) is always zero. For
935 PVEC_BOOL_VECTOR and PVEC_SUBR, both b) and c) are always zero.
936 Current layout limits the pseudovectors to 63 PVEC_xxx subtypes,
937 4095 Lisp_Objects in GC-ed area and 4095 word-sized other slots. */
941 /* A regular vector is just a header plus an array of Lisp_Objects. */
945 struct vectorlike_header header
;
946 Lisp_Object contents
[FLEXIBLE_ARRAY_MEMBER
];
949 /* C11 prohibits alignof (struct Lisp_Vector), so compute it manually. */
952 ALIGNOF_STRUCT_LISP_VECTOR
953 = alignof (union { struct vectorlike_header a
; Lisp_Object b
; })
956 /* A boolvector is a kind of vectorlike, with contents like a string. */
958 struct Lisp_Bool_Vector
960 /* HEADER.SIZE is the vector's size field. It doesn't have the real size,
961 just the subtype information. */
962 struct vectorlike_header header
;
963 /* This is the size in bits. */
965 /* The actual bits, packed into bytes.
966 Zeros fill out the last word if needed.
967 The bits are in little-endian order in the bytes, and
968 the bytes are in little-endian order in the words. */
969 bits_word data
[FLEXIBLE_ARRAY_MEMBER
];
973 bool_vector_size (Lisp_Object a
)
975 EMACS_INT size
= XBOOL_VECTOR (a
)->size
;
981 bool_vector_data (Lisp_Object a
)
983 return XBOOL_VECTOR (a
)->data
;
986 INLINE
unsigned char *
987 bool_vector_uchar_data (Lisp_Object a
)
989 return (unsigned char *) bool_vector_data (a
);
992 /* The number of data words and bytes in a bool vector with SIZE bits. */
995 bool_vector_words (EMACS_INT size
)
997 eassume (0 <= size
&& size
<= EMACS_INT_MAX
- (BITS_PER_BITS_WORD
- 1));
998 return (size
+ BITS_PER_BITS_WORD
- 1) / BITS_PER_BITS_WORD
;
1002 bool_vector_bytes (EMACS_INT size
)
1004 eassume (0 <= size
&& size
<= EMACS_INT_MAX
- (BITS_PER_BITS_WORD
- 1));
1005 return (size
+ BOOL_VECTOR_BITS_PER_CHAR
- 1) / BOOL_VECTOR_BITS_PER_CHAR
;
1008 /* True if A's Ith bit is set. */
1011 bool_vector_bitref (Lisp_Object a
, EMACS_INT i
)
1013 eassume (0 <= i
&& i
< bool_vector_size (a
));
1014 return !! (bool_vector_uchar_data (a
)[i
/ BOOL_VECTOR_BITS_PER_CHAR
]
1015 & (1 << (i
% BOOL_VECTOR_BITS_PER_CHAR
)));
1019 bool_vector_ref (Lisp_Object a
, EMACS_INT i
)
1021 return bool_vector_bitref (a
, i
) ? Qt
: Qnil
;
1024 /* Set A's Ith bit to B. */
1027 bool_vector_set (Lisp_Object a
, EMACS_INT i
, bool b
)
1029 unsigned char *addr
;
1031 eassume (0 <= i
&& i
< bool_vector_size (a
));
1032 addr
= &bool_vector_uchar_data (a
)[i
/ BOOL_VECTOR_BITS_PER_CHAR
];
1035 *addr
|= 1 << (i
% BOOL_VECTOR_BITS_PER_CHAR
);
1037 *addr
&= ~ (1 << (i
% BOOL_VECTOR_BITS_PER_CHAR
));
1040 /* Some handy constants for calculating sizes
1041 and offsets, mostly of vectorlike objects. */
1045 header_size
= offsetof (struct Lisp_Vector
, contents
),
1046 bool_header_size
= offsetof (struct Lisp_Bool_Vector
, data
),
1047 word_size
= sizeof (Lisp_Object
)
1050 /* Conveniences for dealing with Lisp arrays. */
1053 AREF (Lisp_Object array
, ptrdiff_t idx
)
1055 return XVECTOR (array
)->contents
[idx
];
1058 INLINE Lisp_Object
*
1059 aref_addr (Lisp_Object array
, ptrdiff_t idx
)
1061 return & XVECTOR (array
)->contents
[idx
];
1065 ASIZE (Lisp_Object array
)
1067 return XVECTOR (array
)->header
.size
;
1071 ASET (Lisp_Object array
, ptrdiff_t idx
, Lisp_Object val
)
1073 eassert (0 <= idx
&& idx
< ASIZE (array
));
1074 XVECTOR (array
)->contents
[idx
] = val
;
1078 gc_aset (Lisp_Object array
, ptrdiff_t idx
, Lisp_Object val
)
1080 /* Like ASET, but also can be used in the garbage collector:
1081 sweep_weak_table calls set_hash_key etc. while the table is marked. */
1082 eassert (0 <= idx
&& idx
< (ASIZE (array
)));
1083 XVECTOR (array
)->contents
[idx
] = val
;
1086 /* If a struct is made to look like a vector, this macro returns the length
1087 of the shortest vector that would hold that struct. */
1089 #define VECSIZE(type) \
1090 ((sizeof (type) - header_size + word_size - 1) / word_size)
1092 /* Like VECSIZE, but used when the pseudo-vector has non-Lisp_Object fields
1093 at the end and we need to compute the number of Lisp_Object fields (the
1094 ones that the GC needs to trace). */
1096 #define PSEUDOVECSIZE(type, nonlispfield) \
1097 ((offsetof (type, nonlispfield) - header_size) / word_size)
1099 /* Compute A OP B, using the unsigned comparison operator OP. A and B
1100 should be integer expressions. This is not the same as
1101 mathematical comparison; for example, UNSIGNED_CMP (0, <, -1)
1102 returns true. For efficiency, prefer plain unsigned comparison if A
1103 and B's sizes both fit (after integer promotion). */
1104 #define UNSIGNED_CMP(a, op, b) \
1105 (max (sizeof ((a) + 0), sizeof ((b) + 0)) <= sizeof (unsigned) \
1106 ? ((a) + (unsigned) 0) op ((b) + (unsigned) 0) \
1107 : ((a) + (uintmax_t) 0) op ((b) + (uintmax_t) 0))
1109 /* True iff C is an ASCII character. */
1110 #define ASCII_CHAR_P(c) UNSIGNED_CMP (c, <, 0x80)
1112 /* A char-table is a kind of vectorlike, with contents are like a
1113 vector but with a few other slots. For some purposes, it makes
1114 sense to handle a char-table with type struct Lisp_Vector. An
1115 element of a char table can be any Lisp objects, but if it is a sub
1116 char-table, we treat it a table that contains information of a
1117 specific range of characters. A sub char-table has the same
1118 structure as a vector. A sub char table appears only in an element
1119 of a char-table, and there's no way to access it directly from
1120 Emacs Lisp program. */
1122 enum CHARTAB_SIZE_BITS
1124 CHARTAB_SIZE_BITS_0
= 6,
1125 CHARTAB_SIZE_BITS_1
= 4,
1126 CHARTAB_SIZE_BITS_2
= 5,
1127 CHARTAB_SIZE_BITS_3
= 7
1130 extern const int chartab_size
[4];
1132 struct Lisp_Char_Table
1134 /* HEADER.SIZE is the vector's size field, which also holds the
1135 pseudovector type information. It holds the size, too.
1136 The size counts the defalt, parent, purpose, ascii,
1137 contents, and extras slots. */
1138 struct vectorlike_header header
;
1140 /* This holds a default value,
1141 which is used whenever the value for a specific character is nil. */
1144 /* This points to another char table, which we inherit from when the
1145 value for a specific character is nil. The `defalt' slot takes
1146 precedence over this. */
1149 /* This is a symbol which says what kind of use this char-table is
1151 Lisp_Object purpose
;
1153 /* The bottom sub char-table for characters of the range 0..127. It
1154 is nil if none of ASCII character has a specific value. */
1157 Lisp_Object contents
[(1 << CHARTAB_SIZE_BITS_0
)];
1159 /* These hold additional data. It is a vector. */
1160 Lisp_Object extras
[FLEXIBLE_ARRAY_MEMBER
];
1163 struct Lisp_Sub_Char_Table
1165 /* HEADER.SIZE is the vector's size field, which also holds the
1166 pseudovector type information. It holds the size, too. */
1167 struct vectorlike_header header
;
1169 /* Depth of this sub char-table. It should be 1, 2, or 3. A sub
1170 char-table of depth 1 contains 16 elements, and each element
1171 covers 4096 (128*32) characters. A sub char-table of depth 2
1172 contains 32 elements, and each element covers 128 characters. A
1173 sub char-table of depth 3 contains 128 elements, and each element
1174 is for one character. */
1177 /* Minimum character covered by the sub char-table. */
1178 Lisp_Object min_char
;
1180 /* Use set_sub_char_table_contents to set this. */
1181 Lisp_Object contents
[FLEXIBLE_ARRAY_MEMBER
];
1185 CHAR_TABLE_REF_ASCII (Lisp_Object ct
, ptrdiff_t idx
)
1187 struct Lisp_Char_Table
*tbl
= NULL
;
1191 tbl
= tbl
? XCHAR_TABLE (tbl
->parent
) : XCHAR_TABLE (ct
);
1192 val
= (! SUB_CHAR_TABLE_P (tbl
->ascii
) ? tbl
->ascii
1193 : XSUB_CHAR_TABLE (tbl
->ascii
)->contents
[idx
]);
1197 while (NILP (val
) && ! NILP (tbl
->parent
));
1202 /* Almost equivalent to Faref (CT, IDX) with optimization for ASCII
1203 characters. Do not check validity of CT. */
1205 CHAR_TABLE_REF (Lisp_Object ct
, int idx
)
1207 return (ASCII_CHAR_P (idx
)
1208 ? CHAR_TABLE_REF_ASCII (ct
, idx
)
1209 : char_table_ref (ct
, idx
));
1212 /* Equivalent to Faset (CT, IDX, VAL) with optimization for ASCII and
1213 8-bit European characters. Do not check validity of CT. */
1215 CHAR_TABLE_SET (Lisp_Object ct
, int idx
, Lisp_Object val
)
1217 if (ASCII_CHAR_P (idx
) && SUB_CHAR_TABLE_P (XCHAR_TABLE (ct
)->ascii
))
1218 set_sub_char_table_contents (XCHAR_TABLE (ct
)->ascii
, idx
, val
);
1220 char_table_set (ct
, idx
, val
);
1223 /* This is the number of slots that every char table must have. This
1224 counts the ordinary slots and the top, defalt, parent, and purpose
1226 enum CHAR_TABLE_STANDARD_SLOTS
1228 CHAR_TABLE_STANDARD_SLOTS
= PSEUDOVECSIZE (struct Lisp_Char_Table
, extras
)
1231 /* Return the number of "extra" slots in the char table CT. */
1234 CHAR_TABLE_EXTRA_SLOTS (struct Lisp_Char_Table
*ct
)
1236 return ((ct
->header
.size
& PSEUDOVECTOR_SIZE_MASK
)
1237 - CHAR_TABLE_STANDARD_SLOTS
);
1241 /***********************************************************************
1243 ***********************************************************************/
1245 enum symbol_redirect
1247 SYMBOL_PLAINVAL
= 4,
1248 SYMBOL_VARALIAS
= 1,
1249 SYMBOL_LOCALIZED
= 2,
1250 SYMBOL_FORWARDED
= 3
1257 /* Indicates where the value can be found:
1258 0 : it's a plain var, the value is in the `value' field.
1259 1 : it's a varalias, the value is really in the `alias' symbol.
1260 2 : it's a localized var, the value is in the `blv' object.
1261 3 : it's a forwarding variable, the value is in `forward'. */
1262 ENUM_BF (symbol_redirect
) redirect_
: 3;
1264 /* Non-zero means symbol is constant, i.e. changing its value
1265 should signal an error. If the value is 3, then the var
1266 can be changed, but only by `defconst'. */
1267 unsigned constant_
: 2;
1269 /* True means that this variable has been explicitly declared
1270 special (with `defvar' etc), and shouldn't be lexically bound. */
1271 bool_bf declared_special_
: 1;
1273 /* Value of the symbol or Qunbound if unbound. Which alternative of the
1274 union is used depends on the `redirect' field above. */
1278 struct Lisp_Buffer_Local_Value
*blv_
;
1279 union Lisp_Fwd
*fwd_
;
1283 #define SYMBOL_SELF(sym) (scm_c_vector_ref (sym, 0))
1284 #define SET_SYMBOL_SELF(sym, v) (scm_c_vector_set_x (sym, 0, v))
1285 #define SYMBOL_REDIRECT(sym) (XINT (scm_c_vector_ref (sym, 1)))
1286 #define SET_SYMBOL_REDIRECT(sym, v) (scm_c_vector_set_x (sym, 1, make_number (v)))
1287 #define SYMBOL_CONSTANT(sym) (XINT (scm_c_vector_ref (sym, 2)))
1288 #define SET_SYMBOL_CONSTANT(sym, v) (scm_c_vector_set_x (sym, 2, make_number (v)))
1289 #define SYMBOL_DECLARED_SPECIAL(sym) (XINT (scm_c_vector_ref (sym, 3)))
1290 #define SET_SYMBOL_DECLARED_SPECIAL(sym, v) (scm_c_vector_set_x (sym, 3, make_number (v)))
1292 /* Value is name of symbol. */
1295 SYMBOL_ALIAS (sym_t sym
)
1297 eassert (SYMBOL_REDIRECT (sym
) == SYMBOL_VARALIAS
);
1298 return scm_c_vector_ref (sym
, 4);
1300 INLINE
struct Lisp_Buffer_Local_Value
*
1301 SYMBOL_BLV (sym_t sym
)
1303 eassert (SYMBOL_REDIRECT (sym
) == SYMBOL_LOCALIZED
);
1304 return scm_to_pointer (scm_c_vector_ref (sym
, 4));
1306 INLINE
union Lisp_Fwd
*
1307 SYMBOL_FWD (sym_t sym
)
1309 eassert (SYMBOL_REDIRECT (sym
) == SYMBOL_FORWARDED
);
1310 return scm_to_pointer (scm_c_vector_ref (sym
, 4));
1313 LISP_MACRO_DEFUN_VOID (SET_SYMBOL_VAL
,
1314 (sym_t sym
, Lisp_Object v
), (sym
, v
))
1317 SET_SYMBOL_ALIAS (sym_t sym
, sym_t v
)
1319 eassert (SYMBOL_REDIRECT (sym
) == SYMBOL_VARALIAS
);
1320 scm_c_vector_set_x (sym
, 4, v
);
1323 SET_SYMBOL_BLV (sym_t sym
, struct Lisp_Buffer_Local_Value
*v
)
1325 eassert (SYMBOL_REDIRECT (sym
) == SYMBOL_LOCALIZED
);
1326 scm_c_vector_set_x (sym
, 4, scm_from_pointer (v
, NULL
));
1329 SET_SYMBOL_FWD (sym_t sym
, union Lisp_Fwd
*v
)
1331 eassert (SYMBOL_REDIRECT (sym
) == SYMBOL_FORWARDED
);
1332 scm_c_vector_set_x (sym
, 4, scm_from_pointer (v
, NULL
));
1336 SYMBOL_NAME (Lisp_Object sym
)
1338 return build_string (scm_to_locale_string (scm_call_1 (scm_c_public_ref ("language elisp runtime", "symbol-name"), sym
)));
1341 /* Value is true if SYM is an interned symbol. */
1344 SYMBOL_INTERNED_P (Lisp_Object sym
)
1346 if (EQ (sym
, Qnil
)) return true;
1347 if (EQ (sym
, Qt
)) return true;
1348 return scm_is_true (scm_symbol_interned_p (sym
));
1351 extern Lisp_Object
Ffboundp (Lisp_Object
);
1352 extern Lisp_Object
Fmakunbound (Lisp_Object
);
1353 extern Lisp_Object
Ffmakunbound (Lisp_Object
);
1354 extern Lisp_Object
Ffset (Lisp_Object
, Lisp_Object
);
1355 extern Lisp_Object
Fsymbol_function (Lisp_Object
);
1358 SYMBOL_FUNCTION (Lisp_Object sym
)
1360 return Fsymbol_function (sym
);
1363 /* Value is non-zero if symbol is considered a constant, i.e. its
1364 value cannot be changed (there is an exception for keyword symbols,
1365 whose value can be set to the keyword symbol itself). */
1367 LISP_MACRO_DEFUN (SYMBOL_CONSTANT_P
, int, (Lisp_Object sym
), (sym
))
1369 #define DEFSYM(sym, name) \
1370 do { (sym) = intern_c_string ((name)); staticpro (&(sym)); } while (false)
1372 LISP_MACRO_DEFUN (SYMBOL_VAL
, Lisp_Object
, (sym_t sym
), (sym
))
1375 /***********************************************************************
1377 ***********************************************************************/
1379 /* The structure of a Lisp hash table. */
1381 struct hash_table_test
1383 /* Name of the function used to compare keys. */
1386 /* User-supplied hash function, or nil. */
1387 Lisp_Object user_hash_function
;
1389 /* User-supplied key comparison function, or nil. */
1390 Lisp_Object user_cmp_function
;
1392 /* C function to compare two keys. */
1393 bool (*cmpfn
) (struct hash_table_test
*t
, Lisp_Object
, Lisp_Object
);
1395 /* C function to compute hash code. */
1396 EMACS_UINT (*hashfn
) (struct hash_table_test
*t
, Lisp_Object
);
1399 struct Lisp_Hash_Table
1401 /* This is for Lisp; the hash table code does not refer to it. */
1402 struct vectorlike_header header
;
1404 /* Nil if table is non-weak. Otherwise a symbol describing the
1405 weakness of the table. */
1408 /* When the table is resized, and this is an integer, compute the
1409 new size by adding this to the old size. If a float, compute the
1410 new size by multiplying the old size with this factor. */
1411 Lisp_Object rehash_size
;
1413 /* Resize hash table when number of entries/ table size is >= this
1415 Lisp_Object rehash_threshold
;
1417 /* Vector of hash codes. If hash[I] is nil, this means that the
1418 I-th entry is unused. */
1421 /* Vector used to chain entries. If entry I is free, next[I] is the
1422 entry number of the next free item. If entry I is non-free,
1423 next[I] is the index of the next entry in the collision chain. */
1426 /* Index of first free entry in free list. */
1427 Lisp_Object next_free
;
1429 /* Bucket vector. A non-nil entry is the index of the first item in
1430 a collision chain. This vector's size can be larger than the
1431 hash table size to reduce collisions. */
1434 /* Only the fields above are traced normally by the GC. The ones below
1435 `count' are special and are either ignored by the GC or traced in
1436 a special way (e.g. because of weakness). */
1438 /* Number of key/value entries in the table. */
1441 /* Vector of keys and values. The key of item I is found at index
1442 2 * I, the value is found at index 2 * I + 1.
1443 This is gc_marked specially if the table is weak. */
1444 Lisp_Object key_and_value
;
1446 /* The comparison and hash functions. */
1447 struct hash_table_test test
;
1449 /* Next weak hash table if this is a weak hash table. The head
1450 of the list is in weak_hash_tables. */
1451 struct Lisp_Hash_Table
*next_weak
;
1455 INLINE
struct Lisp_Hash_Table
*
1456 XHASH_TABLE (Lisp_Object a
)
1458 return SMOB_PTR (a
);
1461 #define XSET_HASH_TABLE(VAR, PTR) \
1462 (XSETPSEUDOVECTOR (VAR, PTR, PVEC_HASH_TABLE))
1465 HASH_TABLE_P (Lisp_Object a
)
1467 return PSEUDOVECTORP (a
, PVEC_HASH_TABLE
);
1470 /* Value is the key part of entry IDX in hash table H. */
1472 HASH_KEY (struct Lisp_Hash_Table
*h
, ptrdiff_t idx
)
1474 return AREF (h
->key_and_value
, 2 * idx
);
1477 /* Value is the value part of entry IDX in hash table H. */
1479 HASH_VALUE (struct Lisp_Hash_Table
*h
, ptrdiff_t idx
)
1481 return AREF (h
->key_and_value
, 2 * idx
+ 1);
1484 /* Value is the index of the next entry following the one at IDX
1487 HASH_NEXT (struct Lisp_Hash_Table
*h
, ptrdiff_t idx
)
1489 return AREF (h
->next
, idx
);
1492 /* Value is the hash code computed for entry IDX in hash table H. */
1494 HASH_HASH (struct Lisp_Hash_Table
*h
, ptrdiff_t idx
)
1496 return AREF (h
->hash
, idx
);
1499 /* Value is the index of the element in hash table H that is the
1500 start of the collision list at index IDX in the index vector of H. */
1502 HASH_INDEX (struct Lisp_Hash_Table
*h
, ptrdiff_t idx
)
1504 return AREF (h
->index
, idx
);
1507 /* Value is the size of hash table H. */
1509 HASH_TABLE_SIZE (struct Lisp_Hash_Table
*h
)
1511 return ASIZE (h
->next
);
1514 /* Default size for hash tables if not specified. */
1516 enum DEFAULT_HASH_SIZE
{ DEFAULT_HASH_SIZE
= 65 };
1518 /* Default threshold specifying when to resize a hash table. The
1519 value gives the ratio of current entries in the hash table and the
1520 size of the hash table. */
1522 static double const DEFAULT_REHASH_THRESHOLD
= 0.8;
1524 /* Default factor by which to increase the size of a hash table. */
1526 static double const DEFAULT_REHASH_SIZE
= 1.5;
1528 /* Combine two integers X and Y for hashing. The result might not fit
1529 into a Lisp integer. */
1532 sxhash_combine (EMACS_UINT x
, EMACS_UINT y
)
1534 return (x
<< 4) + (x
>> (BITS_PER_EMACS_INT
- 4)) + y
;
1537 /* Hash X, returning a value that fits into a fixnum. */
1540 SXHASH_REDUCE (EMACS_UINT x
)
1542 return (x
^ x
>> (BITS_PER_EMACS_INT
- FIXNUM_BITS
+ 1)) & INTMASK
;
1545 /* These structures are used for various misc types. */
1547 struct Lisp_Misc_Any
/* Supertype of all Misc types. */
1550 ENUM_BF (Lisp_Misc_Type
) type
: 16; /* = Lisp_Misc_??? */
1556 ENUM_BF (Lisp_Misc_Type
) type
: 16; /* = Lisp_Misc_Marker */
1557 /* This flag is temporarily used in the functions
1558 decode/encode_coding_object to record that the marker position
1559 must be adjusted after the conversion. */
1560 bool_bf need_adjustment
: 1;
1561 /* True means normal insertion at the marker's position
1562 leaves the marker after the inserted text. */
1563 bool_bf insertion_type
: 1;
1564 /* This is the buffer that the marker points into, or 0 if it points nowhere.
1565 Note: a chain of markers can contain markers pointing into different
1566 buffers (the chain is per buffer_text rather than per buffer, so it's
1567 shared between indirect buffers). */
1568 /* This is used for (other than NULL-checking):
1570 - Fset_marker: check eq(oldbuf, newbuf) to avoid unchain+rechain.
1571 - unchain_marker: to find the list from which to unchain.
1572 - Fkill_buffer: to only unchain the markers of current indirect buffer.
1574 struct buffer
*buffer
;
1576 /* The remaining fields are meaningless in a marker that
1577 does not point anywhere. */
1579 /* For markers that point somewhere,
1580 this is used to chain of all the markers in a given buffer. */
1581 /* We could remove it and use an array in buffer_text instead.
1582 That would also allow to preserve it ordered. */
1583 struct Lisp_Marker
*next
;
1584 /* This is the char position where the marker points. */
1586 /* This is the byte position.
1587 It's mostly used as a charpos<->bytepos cache (i.e. it's not directly
1588 used to implement the functionality of markers, but rather to (ab)use
1589 markers as a cache for char<->byte mappings). */
1593 /* START and END are markers in the overlay's buffer, and
1594 PLIST is the overlay's property list. */
1596 /* An overlay's real data content is:
1598 - buffer (really there are two buffer pointers, one per marker,
1599 and both points to the same buffer)
1600 - insertion type of both ends (per-marker fields)
1601 - start & start byte (of start marker)
1602 - end & end byte (of end marker)
1603 - next (singly linked list of overlays)
1604 - next fields of start and end markers (singly linked list of markers).
1605 I.e. 9words plus 2 bits, 3words of which are for external linked lists.
1609 ENUM_BF (Lisp_Misc_Type
) type
: 16; /* = Lisp_Misc_Overlay */
1610 struct Lisp_Overlay
*next
;
1616 /* Types of data which may be saved in a Lisp_Save_Value. */
1627 /* Number of bits needed to store one of the above values. */
1628 enum { SAVE_SLOT_BITS
= 3 };
1630 /* Number of slots in a save value where save_type is nonzero. */
1631 enum { SAVE_VALUE_SLOTS
= 4 };
1633 /* Bit-width and values for struct Lisp_Save_Value's save_type member. */
1635 enum { SAVE_TYPE_BITS
= SAVE_VALUE_SLOTS
* SAVE_SLOT_BITS
+ 1 };
1639 SAVE_TYPE_INT_INT
= SAVE_INTEGER
+ (SAVE_INTEGER
<< SAVE_SLOT_BITS
),
1640 SAVE_TYPE_INT_INT_INT
1641 = (SAVE_INTEGER
+ (SAVE_TYPE_INT_INT
<< SAVE_SLOT_BITS
)),
1642 SAVE_TYPE_OBJ_OBJ
= SAVE_OBJECT
+ (SAVE_OBJECT
<< SAVE_SLOT_BITS
),
1643 SAVE_TYPE_OBJ_OBJ_OBJ
= SAVE_OBJECT
+ (SAVE_TYPE_OBJ_OBJ
<< SAVE_SLOT_BITS
),
1644 SAVE_TYPE_OBJ_OBJ_OBJ_OBJ
1645 = SAVE_OBJECT
+ (SAVE_TYPE_OBJ_OBJ_OBJ
<< SAVE_SLOT_BITS
),
1646 SAVE_TYPE_PTR_INT
= SAVE_POINTER
+ (SAVE_INTEGER
<< SAVE_SLOT_BITS
),
1647 SAVE_TYPE_PTR_OBJ
= SAVE_POINTER
+ (SAVE_OBJECT
<< SAVE_SLOT_BITS
),
1648 SAVE_TYPE_PTR_PTR
= SAVE_POINTER
+ (SAVE_POINTER
<< SAVE_SLOT_BITS
),
1649 SAVE_TYPE_FUNCPTR_PTR_OBJ
1650 = SAVE_FUNCPOINTER
+ (SAVE_TYPE_PTR_OBJ
<< SAVE_SLOT_BITS
),
1652 /* This has an extra bit indicating it's raw memory. */
1653 SAVE_TYPE_MEMORY
= SAVE_TYPE_PTR_INT
+ (1 << (SAVE_TYPE_BITS
- 1))
1656 /* Special object used to hold a different values for later use.
1658 This is mostly used to package C integers and pointers to call
1659 record_unwind_protect when two or more values need to be saved.
1663 struct my_data *md = get_my_data ();
1664 ptrdiff_t mi = get_my_integer ();
1665 record_unwind_protect (my_unwind, make_save_ptr_int (md, mi));
1668 Lisp_Object my_unwind (Lisp_Object arg)
1670 struct my_data *md = XSAVE_POINTER (arg, 0);
1671 ptrdiff_t mi = XSAVE_INTEGER (arg, 1);
1675 If ENABLE_CHECKING is in effect, XSAVE_xxx macros do type checking of the
1676 saved objects and raise eassert if type of the saved object doesn't match
1677 the type which is extracted. In the example above, XSAVE_INTEGER (arg, 2)
1678 and XSAVE_OBJECT (arg, 0) are wrong because nothing was saved in slot 2 and
1679 slot 0 is a pointer. */
1681 typedef void (*voidfuncptr
) (void);
1683 struct Lisp_Save_Value
1686 ENUM_BF (Lisp_Misc_Type
) type
: 16; /* = Lisp_Misc_Save_Value */
1687 unsigned spacer
: 32 - (16 + SAVE_TYPE_BITS
);
1689 /* V->data may hold up to SAVE_VALUE_SLOTS entries. The type of
1690 V's data entries are determined by V->save_type. E.g., if
1691 V->save_type == SAVE_TYPE_PTR_OBJ, V->data[0] is a pointer,
1692 V->data[1] is an integer, and V's other data entries are unused.
1694 If V->save_type == SAVE_TYPE_MEMORY, V->data[0].pointer is the address of
1695 a memory area containing V->data[1].integer potential Lisp_Objects. */
1696 ENUM_BF (Lisp_Save_Type
) save_type
: SAVE_TYPE_BITS
;
1699 voidfuncptr funcpointer
;
1702 } data
[SAVE_VALUE_SLOTS
];
1705 /* Return the type of V's Nth saved value. */
1707 save_type (struct Lisp_Save_Value
*v
, int n
)
1709 eassert (0 <= n
&& n
< SAVE_VALUE_SLOTS
);
1710 return (v
->save_type
>> (SAVE_SLOT_BITS
* n
) & ((1 << SAVE_SLOT_BITS
) - 1));
1713 /* Get and set the Nth saved pointer. */
1716 XSAVE_POINTER (Lisp_Object obj
, int n
)
1718 eassert (save_type (XSAVE_VALUE (obj
), n
) == SAVE_POINTER
);
1719 return XSAVE_VALUE (obj
)->data
[n
].pointer
;
1722 set_save_pointer (Lisp_Object obj
, int n
, void *val
)
1724 eassert (save_type (XSAVE_VALUE (obj
), n
) == SAVE_POINTER
);
1725 XSAVE_VALUE (obj
)->data
[n
].pointer
= val
;
1728 XSAVE_FUNCPOINTER (Lisp_Object obj
, int n
)
1730 eassert (save_type (XSAVE_VALUE (obj
), n
) == SAVE_FUNCPOINTER
);
1731 return XSAVE_VALUE (obj
)->data
[n
].funcpointer
;
1734 /* Likewise for the saved integer. */
1737 XSAVE_INTEGER (Lisp_Object obj
, int n
)
1739 eassert (save_type (XSAVE_VALUE (obj
), n
) == SAVE_INTEGER
);
1740 return XSAVE_VALUE (obj
)->data
[n
].integer
;
1743 set_save_integer (Lisp_Object obj
, int n
, ptrdiff_t val
)
1745 eassert (save_type (XSAVE_VALUE (obj
), n
) == SAVE_INTEGER
);
1746 XSAVE_VALUE (obj
)->data
[n
].integer
= val
;
1749 /* Extract Nth saved object. */
1752 XSAVE_OBJECT (Lisp_Object obj
, int n
)
1754 eassert (save_type (XSAVE_VALUE (obj
), n
) == SAVE_OBJECT
);
1755 return XSAVE_VALUE (obj
)->data
[n
].object
;
1758 /* To get the type field of a union Lisp_Misc, use XMISCTYPE.
1759 It uses one of these struct subtypes to get the type field. */
1763 struct Lisp_Misc_Any u_any
; /* Supertype of all Misc types. */
1764 struct Lisp_Marker u_marker
;
1765 struct Lisp_Overlay u_overlay
;
1766 struct Lisp_Save_Value u_save_value
;
1769 INLINE
union Lisp_Misc
*
1770 XMISC (Lisp_Object a
)
1772 return SMOB_PTR (a
);
1775 INLINE
struct Lisp_Misc_Any
*
1776 XMISCANY (Lisp_Object a
)
1778 eassert (MISCP (a
));
1779 return & XMISC (a
)->u_any
;
1782 INLINE
enum Lisp_Misc_Type
1783 XMISCTYPE (Lisp_Object a
)
1785 return XMISCANY (a
)->type
;
1788 INLINE
struct Lisp_Marker
*
1789 XMARKER (Lisp_Object a
)
1791 eassert (MARKERP (a
));
1792 return & XMISC (a
)->u_marker
;
1795 INLINE
struct Lisp_Overlay
*
1796 XOVERLAY (Lisp_Object a
)
1798 eassert (OVERLAYP (a
));
1799 return & XMISC (a
)->u_overlay
;
1802 INLINE
struct Lisp_Save_Value
*
1803 XSAVE_VALUE (Lisp_Object a
)
1805 eassert (SAVE_VALUEP (a
));
1806 return & XMISC (a
)->u_save_value
;
1809 /* Forwarding pointer to an int variable.
1810 This is allowed only in the value cell of a symbol,
1811 and it means that the symbol's value really lives in the
1812 specified int variable. */
1815 enum Lisp_Fwd_Type type
; /* = Lisp_Fwd_Int */
1819 /* Boolean forwarding pointer to an int variable.
1820 This is like Lisp_Intfwd except that the ostensible
1821 "value" of the symbol is t if the bool variable is true,
1822 nil if it is false. */
1825 enum Lisp_Fwd_Type type
; /* = Lisp_Fwd_Bool */
1829 /* Forwarding pointer to a Lisp_Object variable.
1830 This is allowed only in the value cell of a symbol,
1831 and it means that the symbol's value really lives in the
1832 specified variable. */
1835 enum Lisp_Fwd_Type type
; /* = Lisp_Fwd_Obj */
1836 Lisp_Object
*objvar
;
1839 /* Like Lisp_Objfwd except that value lives in a slot in the
1840 current buffer. Value is byte index of slot within buffer. */
1841 struct Lisp_Buffer_Objfwd
1843 enum Lisp_Fwd_Type type
; /* = Lisp_Fwd_Buffer_Obj */
1845 /* One of Qnil, Qintegerp, Qsymbolp, Qstringp, Qfloatp or Qnumberp. */
1846 Lisp_Object predicate
;
1849 /* struct Lisp_Buffer_Local_Value is used in a symbol value cell when
1850 the symbol has buffer-local or frame-local bindings. (Exception:
1851 some buffer-local variables are built-in, with their values stored
1852 in the buffer structure itself. They are handled differently,
1853 using struct Lisp_Buffer_Objfwd.)
1855 The `realvalue' slot holds the variable's current value, or a
1856 forwarding pointer to where that value is kept. This value is the
1857 one that corresponds to the loaded binding. To read or set the
1858 variable, you must first make sure the right binding is loaded;
1859 then you can access the value in (or through) `realvalue'.
1861 `buffer' and `frame' are the buffer and frame for which the loaded
1862 binding was found. If those have changed, to make sure the right
1863 binding is loaded it is necessary to find which binding goes with
1864 the current buffer and selected frame, then load it. To load it,
1865 first unload the previous binding, then copy the value of the new
1866 binding into `realvalue' (or through it). Also update
1867 LOADED-BINDING to point to the newly loaded binding.
1869 `local_if_set' indicates that merely setting the variable creates a
1870 local binding for the current buffer. Otherwise the latter, setting
1871 the variable does not do that; only make-local-variable does that. */
1873 struct Lisp_Buffer_Local_Value
1875 /* True means that merely setting the variable creates a local
1876 binding for the current buffer. */
1877 bool_bf local_if_set
: 1;
1878 /* True means this variable can have frame-local bindings, otherwise, it is
1879 can have buffer-local bindings. The two cannot be combined. */
1880 bool_bf frame_local
: 1;
1881 /* True means that the binding now loaded was found.
1882 Presumably equivalent to (defcell!=valcell). */
1884 /* If non-NULL, a forwarding to the C var where it should also be set. */
1885 union Lisp_Fwd
*fwd
; /* Should never be (Buffer|Kboard)_Objfwd. */
1886 /* The buffer or frame for which the loaded binding was found. */
1888 /* A cons cell that holds the default value. It has the form
1889 (SYMBOL . DEFAULT-VALUE). */
1890 Lisp_Object defcell
;
1891 /* The cons cell from `where's parameter alist.
1892 It always has the form (SYMBOL . VALUE)
1893 Note that if `forward' is non-nil, VALUE may be out of date.
1894 Also if the currently loaded binding is the default binding, then
1895 this is `eq'ual to defcell. */
1896 Lisp_Object valcell
;
1899 /* Like Lisp_Objfwd except that value lives in a slot in the
1901 struct Lisp_Kboard_Objfwd
1903 enum Lisp_Fwd_Type type
; /* = Lisp_Fwd_Kboard_Obj */
1909 struct Lisp_Intfwd u_intfwd
;
1910 struct Lisp_Boolfwd u_boolfwd
;
1911 struct Lisp_Objfwd u_objfwd
;
1912 struct Lisp_Buffer_Objfwd u_buffer_objfwd
;
1913 struct Lisp_Kboard_Objfwd u_kboard_objfwd
;
1916 INLINE
enum Lisp_Fwd_Type
1917 XFWDTYPE (union Lisp_Fwd
*a
)
1919 return a
->u_intfwd
.type
;
1922 INLINE
struct Lisp_Buffer_Objfwd
*
1923 XBUFFER_OBJFWD (union Lisp_Fwd
*a
)
1925 eassert (BUFFER_OBJFWDP (a
));
1926 return &a
->u_buffer_objfwd
;
1929 #define XFLOAT_DATA(f) (scm_to_double (f))
1931 /* Most hosts nowadays use IEEE floating point, so they use IEC 60559
1932 representations, have infinities and NaNs, and do not trap on
1933 exceptions. Define IEEE_FLOATING_POINT if this host is one of the
1934 typical ones. The C11 macro __STDC_IEC_559__ is close to what is
1935 wanted here, but is not quite right because Emacs does not require
1936 all the features of C11 Annex F (and does not require C11 at all,
1937 for that matter). */
1941 = (FLT_RADIX
== 2 && FLT_MANT_DIG
== 24
1942 && FLT_MIN_EXP
== -125 && FLT_MAX_EXP
== 128)
1945 /* A character, declared with the following typedef, is a member
1946 of some character set associated with the current buffer. */
1947 #ifndef _UCHAR_T /* Protect against something in ctab.h on AIX. */
1949 typedef unsigned char UCHAR
;
1952 /* Meanings of slots in a Lisp_Compiled: */
1956 COMPILED_ARGLIST
= 0,
1957 COMPILED_BYTECODE
= 1,
1958 COMPILED_CONSTANTS
= 2,
1959 COMPILED_STACK_DEPTH
= 3,
1960 COMPILED_DOC_STRING
= 4,
1961 COMPILED_INTERACTIVE
= 5
1964 /* Flag bits in a character. These also get used in termhooks.h.
1965 Richard Stallman <rms@gnu.ai.mit.edu> thinks that MULE
1966 (MUlti-Lingual Emacs) might need 22 bits for the character value
1967 itself, so we probably shouldn't use any bits lower than 0x0400000. */
1970 CHAR_ALT
= 0x0400000,
1971 CHAR_SUPER
= 0x0800000,
1972 CHAR_HYPER
= 0x1000000,
1973 CHAR_SHIFT
= 0x2000000,
1974 CHAR_CTL
= 0x4000000,
1975 CHAR_META
= 0x8000000,
1977 CHAR_MODIFIER_MASK
=
1978 CHAR_ALT
| CHAR_SUPER
| CHAR_HYPER
| CHAR_SHIFT
| CHAR_CTL
| CHAR_META
,
1980 /* Actually, the current Emacs uses 22 bits for the character value
1985 /* Data type checking. */
1987 LISP_MACRO_DEFUN (NILP
, bool, (Lisp_Object x
), (x
))
1990 NUMBERP (Lisp_Object x
)
1992 return INTEGERP (x
) || FLOATP (x
);
1995 NATNUMP (Lisp_Object x
)
1997 return INTEGERP (x
) && 0 <= XINT (x
);
2001 RANGED_INTEGERP (intmax_t lo
, Lisp_Object x
, intmax_t hi
)
2003 return INTEGERP (x
) && lo
<= XINT (x
) && XINT (x
) <= hi
;
2006 #define TYPE_RANGED_INTEGERP(type, x) \
2008 && (TYPE_SIGNED (type) ? TYPE_MINIMUM (type) <= XINT (x) : 0 <= XINT (x)) \
2009 && XINT (x) <= TYPE_MAXIMUM (type))
2011 LISP_MACRO_DEFUN (CONSP
, bool, (Lisp_Object x
), (x
))
2012 LISP_MACRO_DEFUN (FLOATP
, bool, (Lisp_Object x
), (x
))
2013 LISP_MACRO_DEFUN (MISCP
, bool, (Lisp_Object x
), (x
))
2014 LISP_MACRO_DEFUN (SYMBOLP
, bool, (Lisp_Object x
), (x
))
2015 LISP_MACRO_DEFUN (INTEGERP
, bool, (Lisp_Object x
), (x
))
2016 LISP_MACRO_DEFUN (VECTORLIKEP
, bool, (Lisp_Object x
), (x
))
2017 LISP_MACRO_DEFUN (MARKERP
, bool, (Lisp_Object x
), (x
))
2020 STRINGP (Lisp_Object x
)
2022 return SMOB_TYPEP (x
, lisp_string_tag
);
2025 VECTORP (Lisp_Object x
)
2027 return VECTORLIKEP (x
) && ! (ASIZE (x
) & PSEUDOVECTOR_FLAG
);
2030 OVERLAYP (Lisp_Object x
)
2032 return MISCP (x
) && XMISCTYPE (x
) == Lisp_Misc_Overlay
;
2035 SAVE_VALUEP (Lisp_Object x
)
2037 return MISCP (x
) && XMISCTYPE (x
) == Lisp_Misc_Save_Value
;
2041 AUTOLOADP (Lisp_Object x
)
2043 return CONSP (x
) && EQ (Qautoload
, XCAR (x
));
2047 BUFFER_OBJFWDP (union Lisp_Fwd
*a
)
2049 return XFWDTYPE (a
) == Lisp_Fwd_Buffer_Obj
;
2053 PSEUDOVECTOR_TYPEP (struct vectorlike_header
*a
, int code
)
2055 return ((a
->size
& (PSEUDOVECTOR_FLAG
| PVEC_TYPE_MASK
))
2056 == (PSEUDOVECTOR_FLAG
| (code
<< PSEUDOVECTOR_AREA_BITS
)));
2059 /* True if A is a pseudovector whose code is CODE. */
2061 PSEUDOVECTORP (Lisp_Object a
, int code
)
2063 if (! VECTORLIKEP (a
))
2067 /* Converting to struct vectorlike_header * avoids aliasing issues. */
2068 struct vectorlike_header
*h
= SMOB_PTR (a
);
2069 return PSEUDOVECTOR_TYPEP (h
, code
);
2073 /* Test for specific pseudovector types. */
2076 WINDOW_CONFIGURATIONP (Lisp_Object a
)
2078 return PSEUDOVECTORP (a
, PVEC_WINDOW_CONFIGURATION
);
2082 PROCESSP (Lisp_Object a
)
2084 return PSEUDOVECTORP (a
, PVEC_PROCESS
);
2088 WINDOWP (Lisp_Object a
)
2090 return PSEUDOVECTORP (a
, PVEC_WINDOW
);
2094 TERMINALP (Lisp_Object a
)
2096 return PSEUDOVECTORP (a
, PVEC_TERMINAL
);
2100 COMPILEDP (Lisp_Object a
)
2102 return PSEUDOVECTORP (a
, PVEC_COMPILED
);
2106 BUFFERP (Lisp_Object a
)
2108 return PSEUDOVECTORP (a
, PVEC_BUFFER
);
2112 CHAR_TABLE_P (Lisp_Object a
)
2114 return PSEUDOVECTORP (a
, PVEC_CHAR_TABLE
);
2118 SUB_CHAR_TABLE_P (Lisp_Object a
)
2120 return PSEUDOVECTORP (a
, PVEC_SUB_CHAR_TABLE
);
2124 BOOL_VECTOR_P (Lisp_Object a
)
2126 return PSEUDOVECTORP (a
, PVEC_BOOL_VECTOR
);
2130 FRAMEP (Lisp_Object a
)
2132 return PSEUDOVECTORP (a
, PVEC_FRAME
);
2135 /* Test for image (image . spec) */
2137 IMAGEP (Lisp_Object x
)
2139 return CONSP (x
) && EQ (XCAR (x
), Qimage
);
2144 ARRAYP (Lisp_Object x
)
2146 return VECTORP (x
) || STRINGP (x
) || CHAR_TABLE_P (x
) || BOOL_VECTOR_P (x
);
2150 CHECK_LIST (Lisp_Object x
)
2152 CHECK_TYPE (CONSP (x
) || NILP (x
), Qlistp
, x
);
2155 LISP_MACRO_DEFUN_VOID (CHECK_LIST_CONS
, (Lisp_Object x
, Lisp_Object y
), (x
, y
))
2156 LISP_MACRO_DEFUN_VOID (CHECK_SYMBOL
, (Lisp_Object x
), (x
))
2157 LISP_MACRO_DEFUN_VOID (CHECK_NUMBER
, (Lisp_Object x
), (x
))
2160 CHECK_STRING (Lisp_Object x
)
2162 CHECK_TYPE (STRINGP (x
), Qstringp
, x
);
2165 CHECK_STRING_CAR (Lisp_Object x
)
2167 CHECK_TYPE (STRINGP (XCAR (x
)), Qstringp
, XCAR (x
));
2170 CHECK_CONS (Lisp_Object x
)
2172 CHECK_TYPE (CONSP (x
), Qconsp
, x
);
2175 CHECK_VECTOR (Lisp_Object x
)
2177 CHECK_TYPE (VECTORP (x
), Qvectorp
, x
);
2180 CHECK_BOOL_VECTOR (Lisp_Object x
)
2182 CHECK_TYPE (BOOL_VECTOR_P (x
), Qbool_vector_p
, x
);
2185 CHECK_VECTOR_OR_STRING (Lisp_Object x
)
2187 CHECK_TYPE (VECTORP (x
) || STRINGP (x
), Qarrayp
, x
);
2190 CHECK_ARRAY (Lisp_Object x
, Lisp_Object predicate
)
2192 CHECK_TYPE (ARRAYP (x
), predicate
, x
);
2195 CHECK_BUFFER (Lisp_Object x
)
2197 CHECK_TYPE (BUFFERP (x
), Qbufferp
, x
);
2200 CHECK_WINDOW (Lisp_Object x
)
2202 CHECK_TYPE (WINDOWP (x
), Qwindowp
, x
);
2206 CHECK_PROCESS (Lisp_Object x
)
2208 CHECK_TYPE (PROCESSP (x
), Qprocessp
, x
);
2212 CHECK_NATNUM (Lisp_Object x
)
2214 CHECK_TYPE (NATNUMP (x
), Qwholenump
, x
);
2217 #define CHECK_RANGED_INTEGER(x, lo, hi) \
2220 if (! ((lo) <= XINT (x) && XINT (x) <= (hi))) \
2221 args_out_of_range_3 \
2223 make_number ((lo) < 0 && (lo) < MOST_NEGATIVE_FIXNUM \
2224 ? MOST_NEGATIVE_FIXNUM \
2226 make_number (min (hi, MOST_POSITIVE_FIXNUM))); \
2228 #define CHECK_TYPE_RANGED_INTEGER(type, x) \
2230 if (TYPE_SIGNED (type)) \
2231 CHECK_RANGED_INTEGER (x, TYPE_MINIMUM (type), TYPE_MAXIMUM (type)); \
2233 CHECK_RANGED_INTEGER (x, 0, TYPE_MAXIMUM (type)); \
2236 #define CHECK_NUMBER_COERCE_MARKER(x) \
2238 if (MARKERP ((x))) \
2239 XSETFASTINT (x, marker_position (x)); \
2241 CHECK_TYPE (INTEGERP (x), Qinteger_or_marker_p, x); \
2245 XFLOATINT (Lisp_Object n
)
2247 return extract_float (n
);
2251 CHECK_NUMBER_OR_FLOAT (Lisp_Object x
)
2253 CHECK_TYPE (FLOATP (x
) || INTEGERP (x
), Qnumberp
, x
);
2256 #define CHECK_NUMBER_OR_FLOAT_COERCE_MARKER(x) \
2259 XSETFASTINT (x, marker_position (x)); \
2261 CHECK_TYPE (INTEGERP (x) || FLOATP (x), Qnumber_or_marker_p, x); \
2264 /* Since we can't assign directly to the CAR or CDR fields of a cons
2265 cell, use these when checking that those fields contain numbers. */
2267 CHECK_NUMBER_CAR (Lisp_Object x
)
2269 Lisp_Object tmp
= XCAR (x
);
2275 CHECK_NUMBER_CDR (Lisp_Object x
)
2277 Lisp_Object tmp
= XCDR (x
);
2282 /* Define a built-in function for calling from Lisp.
2283 `lname' should be the name to give the function in Lisp,
2284 as a null-terminated C string.
2285 `fnname' should be the name of the function in C.
2286 By convention, it starts with F.
2287 `sname' should be the name for the C constant structure
2288 that records information on this function for internal use.
2289 By convention, it should be the same as `fnname' but with S instead of F.
2290 It's too bad that C macros can't compute this from `fnname'.
2291 `minargs' should be a number, the minimum number of arguments allowed.
2292 `maxargs' should be a number, the maximum number of arguments allowed,
2293 or else MANY or UNEVALLED.
2294 MANY means pass a vector of evaluated arguments,
2295 in the form of an integer number-of-arguments
2296 followed by the address of a vector of Lisp_Objects
2297 which contains the argument values.
2298 UNEVALLED means pass the list of unevaluated arguments
2299 `intspec' says how interactive arguments are to be fetched.
2300 If the string starts with a `(', `intspec' is evaluated and the resulting
2301 list is the list of arguments.
2302 If it's a string that doesn't start with `(', the value should follow
2303 the one of the doc string for `interactive'.
2304 A null string means call interactively with no arguments.
2305 `doc' is documentation for the user. */
2307 /* This version of DEFUN declares a function prototype with the right
2308 arguments, so we can catch errors with maxargs at compile-time. */
2309 #define DEFUN(lname, fnname, sname, minargs, maxargs, intspec, doc) \
2310 SCM_SNARF_INIT (defsubr (lname, gsubr_ ## fnname, minargs, maxargs, intspec)) \
2311 Lisp_Object fnname DEFUN_ARGS_ ## maxargs ; \
2312 DEFUN_GSUBR_ ## maxargs (lname, fnname, minargs, maxargs) \
2315 #define GSUBR_ARGS_1(f) f (arg1)
2316 #define GSUBR_ARGS_2(f) GSUBR_ARGS_1 (f), f (arg2)
2317 #define GSUBR_ARGS_3(f) GSUBR_ARGS_2 (f), f (arg3)
2318 #define GSUBR_ARGS_4(f) GSUBR_ARGS_3 (f), f (arg4)
2319 #define GSUBR_ARGS_5(f) GSUBR_ARGS_4 (f), f (arg5)
2320 #define GSUBR_ARGS_6(f) GSUBR_ARGS_5 (f), f (arg6)
2321 #define GSUBR_ARGS_7(f) GSUBR_ARGS_6 (f), f (arg7)
2322 #define GSUBR_ARGS_8(f) GSUBR_ARGS_7 (f), f (arg8)
2324 #define GSUBR_ARGS(n) GSUBR_ARGS_PASTE (GSUBR_ARGS_, n)
2325 #define GSUBR_ARGS_PASTE(a, b) a ## b
2327 #define DEFUN_GSUBR_N(fn, maxargs) \
2330 (GSUBR_ARGS (maxargs) (Lisp_Object)) \
2332 return fn (GSUBR_ARGS (maxargs) (GSUBR_ARG)); \
2334 #define GSUBR_ARG(x) (SCM_UNBNDP (x) ? Qnil : x)
2336 #define DEFUN_GSUBR_0(lname, fn, minargs, maxargs) \
2337 Lisp_Object gsubr_ ## fn (void) { return fn (); }
2338 #define DEFUN_GSUBR_1(lname, fn, min, max) DEFUN_GSUBR_N(fn, max)
2339 #define DEFUN_GSUBR_2(lname, fn, min, max) DEFUN_GSUBR_N(fn, max)
2340 #define DEFUN_GSUBR_3(lname, fn, min, max) DEFUN_GSUBR_N(fn, max)
2341 #define DEFUN_GSUBR_4(lname, fn, min, max) DEFUN_GSUBR_N(fn, max)
2342 #define DEFUN_GSUBR_5(lname, fn, min, max) DEFUN_GSUBR_N(fn, max)
2343 #define DEFUN_GSUBR_6(lname, fn, min, max) DEFUN_GSUBR_N(fn, max)
2344 #define DEFUN_GSUBR_7(lname, fn, min, max) DEFUN_GSUBR_N(fn, max)
2345 #define DEFUN_GSUBR_8(lname, fn, min, max) DEFUN_GSUBR_N(fn, max)
2347 #define DEFUN_GSUBR_UNEVALLED(lname, fn, minargs, maxargs) \
2349 gsubr_ ## fn (Lisp_Object rest) \
2351 Lisp_Object len = Flength (rest); \
2352 if (XINT (len) < minargs) \
2353 xsignal2 (Qwrong_number_of_arguments, \
2354 intern (lname), len); \
2357 #define DEFUN_GSUBR_MANY(lname, fn, minargs, maxargs) \
2359 gsubr_ ## fn (Lisp_Object rest) \
2361 int len = scm_to_int (scm_length (rest)); \
2362 Lisp_Object *args; \
2363 SAFE_ALLOCA_LISP (args, len); \
2366 i < len && scm_is_pair (rest); \
2367 i++, rest = SCM_CDR (rest)) \
2368 args[i] = SCM_CAR (rest); \
2370 xsignal2 (Qwrong_number_of_arguments, \
2371 intern (lname), make_number (i)); \
2372 return fn (i, args); \
2375 /* Note that the weird token-substitution semantics of ANSI C makes
2376 this work for MANY and UNEVALLED. */
2377 #define DEFUN_ARGS_MANY (ptrdiff_t, Lisp_Object *)
2378 #define DEFUN_ARGS_UNEVALLED (Lisp_Object)
2379 #define DEFUN_ARGS_0 (void)
2380 #define DEFUN_ARGS_1 (Lisp_Object)
2381 #define DEFUN_ARGS_2 (Lisp_Object, Lisp_Object)
2382 #define DEFUN_ARGS_3 (Lisp_Object, Lisp_Object, Lisp_Object)
2383 #define DEFUN_ARGS_4 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object)
2384 #define DEFUN_ARGS_5 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
2386 #define DEFUN_ARGS_6 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
2387 Lisp_Object, Lisp_Object)
2388 #define DEFUN_ARGS_7 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
2389 Lisp_Object, Lisp_Object, Lisp_Object)
2390 #define DEFUN_ARGS_8 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
2391 Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object)
2393 #define WRAP1(cfn, lfn) \
2394 SCM_SNARF_INIT (DEFSYM (cfn ## _sym, lfn)) \
2395 static Lisp_Object cfn ## _sym; \
2396 Lisp_Object cfn (Lisp_Object a) \
2397 { return call1 (cfn ## _sym, a); }
2398 #define WRAP2(cfn, lfn) Lisp_Object cfn (Lisp_Object a, Lisp_Object b) { return call2 (intern (lfn), a, b); }
2400 /* True if OBJ is a Lisp function. */
2402 FUNCTIONP (Lisp_Object obj
)
2404 return functionp (obj
);
2408 is how we define the symbol for function `name' at start-up time. */
2409 extern void defsubr (const char *, scm_t_subr
, short, short, const char *);
2417 extern void defvar_lisp (struct Lisp_Objfwd
*, const char *, Lisp_Object
*);
2418 extern void defvar_lisp_nopro (struct Lisp_Objfwd
*, const char *, Lisp_Object
*);
2419 extern void defvar_bool (struct Lisp_Boolfwd
*, const char *, bool *);
2420 extern void defvar_int (struct Lisp_Intfwd
*, const char *, EMACS_INT
*);
2421 extern void defvar_kboard (struct Lisp_Kboard_Objfwd
*, const char *, int);
2423 /* Macros we use to define forwarded Lisp variables.
2424 These are used in the syms_of_FILENAME functions.
2426 An ordinary (not in buffer_defaults, per-buffer, or per-keyboard)
2427 lisp variable is actually a field in `struct emacs_globals'. The
2428 field's name begins with "f_", which is a convention enforced by
2429 these macros. Each such global has a corresponding #define in
2430 globals.h; the plain name should be used in the code.
2432 E.g., the global "cons_cells_consed" is declared as "int
2433 f_cons_cells_consed" in globals.h, but there is a define:
2435 #define cons_cells_consed globals.f_cons_cells_consed
2437 All C code uses the `cons_cells_consed' name. This is all done
2438 this way to support indirection for multi-threaded Emacs. */
2440 #define DEFVAR_LISP(lname, vname, doc) \
2442 static struct Lisp_Objfwd o_fwd; \
2443 defvar_lisp (&o_fwd, lname, &globals.f_ ## vname); \
2445 #define DEFVAR_LISP_NOPRO(lname, vname, doc) \
2447 static struct Lisp_Objfwd o_fwd; \
2448 defvar_lisp_nopro (&o_fwd, lname, &globals.f_ ## vname); \
2450 #define DEFVAR_BOOL(lname, vname, doc) \
2452 static struct Lisp_Boolfwd b_fwd; \
2453 defvar_bool (&b_fwd, lname, &globals.f_ ## vname); \
2455 #define DEFVAR_INT(lname, vname, doc) \
2457 static struct Lisp_Intfwd i_fwd; \
2458 defvar_int (&i_fwd, lname, &globals.f_ ## vname); \
2461 #define DEFVAR_BUFFER_DEFAULTS(lname, vname, doc) \
2463 static struct Lisp_Objfwd o_fwd; \
2464 defvar_lisp_nopro (&o_fwd, lname, &BVAR (&buffer_defaults, vname)); \
2467 #define DEFVAR_KBOARD(lname, vname, doc) \
2469 static struct Lisp_Kboard_Objfwd ko_fwd; \
2470 defvar_kboard (&ko_fwd, lname, offsetof (KBOARD, vname ## _)); \
2473 /* Save and restore the instruction and environment pointers,
2474 without affecting the signal mask. */
2477 typedef jmp_buf sys_jmp_buf
;
2478 # define sys_setjmp(j) _setjmp (j)
2479 # define sys_longjmp(j, v) _longjmp (j, v)
2480 #elif defined HAVE_SIGSETJMP
2481 typedef sigjmp_buf sys_jmp_buf
;
2482 # define sys_setjmp(j) sigsetjmp (j, 0)
2483 # define sys_longjmp(j, v) siglongjmp (j, v)
2485 /* A platform that uses neither _longjmp nor siglongjmp; assume
2486 longjmp does not affect the sigmask. */
2487 typedef jmp_buf sys_jmp_buf
;
2488 # define sys_setjmp(j) setjmp (j)
2489 # define sys_longjmp(j, v) longjmp (j, v)
2493 /* Elisp uses several stacks:
2495 - the bytecode stack: used internally by the bytecode interpreter.
2496 Allocated from the C stack.
2497 - The specpdl stack: keeps track of active unwind-protect and
2498 dynamic-let-bindings. Allocated from the `specpdl' array, a manually
2500 - The handler stack: keeps track of active catch tags and condition-case
2501 handlers. Allocated in a manually managed stack implemented by a
2502 doubly-linked list allocated via xmalloc and never freed. */
2504 /* Structure for recording Lisp call stack for backtrace purposes. */
2506 /* The special binding stack holds the outer values of variables while
2507 they are bound by a function application or a let form, stores the
2508 code to be executed for unwind-protect forms.
2510 NOTE: The specbinding union is defined here, because SPECPDL_INDEX is
2511 used all over the place, needs to be fast, and needs to know the size of
2512 union specbinding. But only eval.c should access it. */
2515 SPECPDL_LET
, /* A plain and simple dynamic let-binding. */
2516 /* Tags greater than SPECPDL_LET must be "subkinds" of LET. */
2517 SPECPDL_LET_LOCAL
, /* A buffer-local let-binding. */
2518 SPECPDL_LET_DEFAULT
/* A global binding for a localized var. */
2523 ENUM_BF (specbind_tag
) kind
: CHAR_BIT
;
2525 ENUM_BF (specbind_tag
) kind
: CHAR_BIT
;
2528 ENUM_BF (specbind_tag
) kind
: CHAR_BIT
;
2529 bool wind_explicitly
;
2530 void (*func
) (Lisp_Object
);
2534 ENUM_BF (specbind_tag
) kind
: CHAR_BIT
;
2535 bool wind_explicitly
;
2536 void (*func
) (void *);
2540 ENUM_BF (specbind_tag
) kind
: CHAR_BIT
;
2541 bool wind_explicitly
;
2546 ENUM_BF (specbind_tag
) kind
: CHAR_BIT
;
2547 bool wind_explicitly
;
2548 void (*func
) (void);
2551 ENUM_BF (specbind_tag
) kind
: CHAR_BIT
;
2552 /* `where' is not used in the case of SPECPDL_LET. */
2553 Lisp_Object symbol
, old_value
, where
;
2556 ENUM_BF (specbind_tag
) kind
: CHAR_BIT
;
2557 bool_bf debug_on_exit
: 1;
2558 Lisp_Object function
;
2564 extern union specbinding
*specpdl
;
2565 extern union specbinding
*specpdl_ptr
;
2566 extern ptrdiff_t specpdl_size
;
2569 SPECPDL_INDEX (void)
2571 return specpdl_ptr
- specpdl
;
2574 /* This structure helps implement the `catch/throw' and `condition-case/signal'
2575 control structures. A struct handler contains all the information needed to
2576 restore the state of the interpreter after a non-local jump.
2578 handler structures are chained together in a doubly linked list; the `next'
2579 member points to the next outer catchtag and the `nextfree' member points in
2580 the other direction to the next inner element (which is typically the next
2581 free element since we mostly use it on the deepest handler).
2583 A call like (throw TAG VAL) searches for a catchtag whose `tag_or_ch'
2584 member is TAG, and then unbinds to it. The `val' member is used to
2585 hold VAL while the stack is unwound; `val' is returned as the value
2588 All the other members are concerned with restoring the interpreter
2591 Members are volatile if their values need to survive _longjmp when
2592 a 'struct handler' is a local variable. */
2594 enum handlertype
{ CATCHER
, CONDITION_CASE
};
2598 enum handlertype type
;
2600 Lisp_Object tag_or_ch
;
2604 struct handler
*next
;
2605 EMACS_INT lisp_eval_depth
;
2606 int interrupt_input_blocked
;
2609 extern Lisp_Object memory_signal_data
;
2611 /* Check quit-flag and quit if it is non-nil.
2612 Typing C-g does not directly cause a quit; it only sets Vquit_flag.
2613 So the program needs to do QUIT at times when it is safe to quit.
2614 Every loop that might run for a long time or might not exit
2615 ought to do QUIT at least once, at a safe place.
2616 Unless that is impossible, of course.
2617 But it is very desirable to avoid creating loops where QUIT is impossible.
2619 Exception: if you set immediate_quit to true,
2620 then the handler that responds to the C-g does the quit itself.
2621 This is a good thing to do around a loop that has no side effects
2622 and (in particular) cannot call arbitrary Lisp code.
2624 If quit-flag is set to `kill-emacs' the SIGINT handler has received
2625 a request to exit Emacs when it is safe to do. */
2627 extern void process_pending_signals (void);
2628 extern bool volatile pending_signals
;
2630 extern void process_quit_flag (void);
2633 if (!NILP (Vquit_flag) && NILP (Vinhibit_quit)) \
2634 process_quit_flag (); \
2635 else if (pending_signals) \
2636 process_pending_signals (); \
2640 /* True if ought to quit now. */
2642 #define QUITP (!NILP (Vquit_flag) && NILP (Vinhibit_quit))
2644 extern Lisp_Object Vascii_downcase_table
;
2645 extern Lisp_Object Vascii_canon_table
;
2647 /* Structure for recording stack slots that need marking. */
2649 /* This is a chain of structures, each of which points at a Lisp_Object
2650 variable whose value should be marked in garbage collection.
2651 Normally every link of the chain is an automatic variable of a function,
2652 and its `val' points to some argument or local variable of the function.
2653 On exit to the function, the chain is set back to the value it had on entry.
2654 This way, no link remains in the chain when the stack frame containing the
2657 Every function that can call Feval must protect in this fashion all
2658 Lisp_Object variables whose contents will be used again. */
2660 extern struct gcpro
*gcprolist
;
2666 /* Address of first protected variable. */
2667 volatile Lisp_Object
*var
;
2669 /* Number of consecutive protected variables. */
2677 /* Do something silly with gcproN vars just so gcc shuts up. */
2678 /* You get warnings from MIPSPro... */
2680 #define GCPRO1(varname) ((void) gcpro1)
2681 #define GCPRO2(varname1, varname2) ((void) gcpro2, (void) gcpro1)
2682 #define GCPRO3(varname1, varname2, varname3) \
2683 ((void) gcpro3, (void) gcpro2, (void) gcpro1)
2684 #define GCPRO4(varname1, varname2, varname3, varname4) \
2685 ((void) gcpro4, (void) gcpro3, (void) gcpro2, (void) gcpro1)
2686 #define GCPRO5(varname1, varname2, varname3, varname4, varname5) \
2687 ((void) gcpro5, (void) gcpro4, (void) gcpro3, (void) gcpro2, (void) gcpro1)
2688 #define GCPRO6(varname1, varname2, varname3, varname4, varname5, varname6) \
2689 ((void) gcpro6, (void) gcpro5, (void) gcpro4, (void) gcpro3, (void) gcpro2, \
2691 #define GCPRO7(a, b, c, d, e, f, g) (GCPRO6 (a, b, c, d, e, f), (void) gcpro7)
2692 #define UNGCPRO ((void) 0)
2694 /* Evaluate expr, UNGCPRO, and then return the value of expr. */
2695 #define RETURN_UNGCPRO(expr) \
2698 Lisp_Object ret_ungc_val; \
2699 ret_ungc_val = (expr); \
2701 return ret_ungc_val; \
2705 /* Call staticpro (&var) to protect static variable `var'. */
2707 void staticpro (Lisp_Object
*);
2709 /* Declare a Lisp-callable function. The MAXARGS parameter has the same
2710 meaning as in the DEFUN macro, and is used to construct a prototype. */
2711 /* We can use the same trick as in the DEFUN macro to generate the
2712 appropriate prototype. */
2713 #define EXFUN(fnname, maxargs) \
2714 extern Lisp_Object fnname DEFUN_ARGS_ ## maxargs
2716 #include "globals.h"
2718 /* Forward declarations for prototypes. */
2722 /* Copy COUNT Lisp_Objects from ARGS to contents of V starting from OFFSET. */
2725 vcopy (Lisp_Object v
, ptrdiff_t offset
, Lisp_Object
*args
, ptrdiff_t count
)
2727 eassert (0 <= offset
&& 0 <= count
&& offset
+ count
<= ASIZE (v
));
2728 memcpy (XVECTOR (v
)->contents
+ offset
, args
, count
* sizeof *args
);
2731 /* Functions to modify hash tables. */
2734 set_hash_key_slot (struct Lisp_Hash_Table
*h
, ptrdiff_t idx
, Lisp_Object val
)
2736 gc_aset (h
->key_and_value
, 2 * idx
, val
);
2740 set_hash_value_slot (struct Lisp_Hash_Table
*h
, ptrdiff_t idx
, Lisp_Object val
)
2742 gc_aset (h
->key_and_value
, 2 * idx
+ 1, val
);
2745 /* Use these functions to set Lisp_Object
2746 or pointer slots of struct Lisp_Symbol. */
2749 set_symbol_function (Lisp_Object sym
, Lisp_Object function
)
2751 scm_call_2 (scm_c_public_ref ("language elisp runtime", "set-symbol-function!"),
2756 symbol_plist (Lisp_Object sym
)
2758 return scm_call_1 (scm_c_public_ref ("language elisp runtime", "symbol-plist"),
2763 set_symbol_plist (Lisp_Object sym
, Lisp_Object plist
)
2765 scm_call_2 (scm_c_public_ref ("language elisp runtime", "set-symbol-plist!"),
2769 /* Buffer-local (also frame-local) variable access functions. */
2772 blv_found (struct Lisp_Buffer_Local_Value
*blv
)
2774 eassert (blv
->found
== !EQ (blv
->defcell
, blv
->valcell
));
2778 /* Set overlay's property list. */
2781 set_overlay_plist (Lisp_Object overlay
, Lisp_Object plist
)
2783 XOVERLAY (overlay
)->plist
= plist
;
2786 /* Get text properties of S. */
2789 string_intervals (Lisp_Object s
)
2791 return XSTRING (s
)->intervals
;
2794 /* Set text properties of S to I. */
2797 set_string_intervals (Lisp_Object s
, INTERVAL i
)
2799 XSTRING (s
)->intervals
= i
;
2802 /* Set a Lisp slot in TABLE to VAL. Most code should use this instead
2803 of setting slots directly. */
2806 set_char_table_defalt (Lisp_Object table
, Lisp_Object val
)
2808 XCHAR_TABLE (table
)->defalt
= val
;
2811 set_char_table_purpose (Lisp_Object table
, Lisp_Object val
)
2813 XCHAR_TABLE (table
)->purpose
= val
;
2816 /* Set different slots in (sub)character tables. */
2819 set_char_table_extras (Lisp_Object table
, ptrdiff_t idx
, Lisp_Object val
)
2821 eassert (0 <= idx
&& idx
< CHAR_TABLE_EXTRA_SLOTS (XCHAR_TABLE (table
)));
2822 XCHAR_TABLE (table
)->extras
[idx
] = val
;
2826 set_char_table_contents (Lisp_Object table
, ptrdiff_t idx
, Lisp_Object val
)
2828 eassert (0 <= idx
&& idx
< (1 << CHARTAB_SIZE_BITS_0
));
2829 XCHAR_TABLE (table
)->contents
[idx
] = val
;
2833 set_sub_char_table_contents (Lisp_Object table
, ptrdiff_t idx
, Lisp_Object val
)
2835 XSUB_CHAR_TABLE (table
)->contents
[idx
] = val
;
2838 /* Defined in data.c. */
2839 extern Lisp_Object Qnil_
, Qt_
;
2840 extern Lisp_Object Qquote
, Qunbound
;
2841 extern Lisp_Object Qerror_conditions
, Qerror_message
, Qtop_level
;
2842 extern Lisp_Object Qerror
, Qquit
, Qargs_out_of_range
;
2843 extern Lisp_Object Qvoid_variable
, Qvoid_function
;
2844 extern Lisp_Object Qinvalid_read_syntax
;
2845 extern Lisp_Object Qinvalid_function
, Qwrong_number_of_arguments
, Qno_catch
;
2846 extern Lisp_Object Quser_error
, Qend_of_file
, Qarith_error
, Qmark_inactive
;
2847 extern Lisp_Object Qbeginning_of_buffer
, Qend_of_buffer
, Qbuffer_read_only
;
2848 extern Lisp_Object Qtext_read_only
;
2849 extern Lisp_Object Qinteractive_form
;
2850 extern Lisp_Object Qcircular_list
;
2851 extern Lisp_Object Qsequencep
;
2852 extern Lisp_Object Qchar_or_string_p
, Qinteger_or_marker_p
;
2853 extern Lisp_Object Qfboundp
;
2854 extern Lisp_Object Qspecial_operator
;
2856 extern Lisp_Object Qcdr
;
2858 extern Lisp_Object Qrange_error
, Qoverflow_error
;
2860 extern Lisp_Object Qnumber_or_marker_p
;
2862 extern Lisp_Object Qbuffer
, Qinteger
, Qsymbol
;
2864 /* Defined in data.c. */
2865 extern Lisp_Object
indirect_function (Lisp_Object
);
2866 extern Lisp_Object
find_symbol_value (Lisp_Object
);
2867 enum Arith_Comparison
{
2872 ARITH_LESS_OR_EQUAL
,
2875 extern Lisp_Object
arithcompare (Lisp_Object num1
, Lisp_Object num2
,
2876 enum Arith_Comparison comparison
);
2878 /* Convert the integer I to an Emacs representation, either the integer
2879 itself, or a cons of two or three integers, or if all else fails a float.
2880 I should not have side effects. */
2881 #define INTEGER_TO_CONS(i) \
2882 (! FIXNUM_OVERFLOW_P (i) \
2884 : ! ((FIXNUM_OVERFLOW_P (INTMAX_MIN >> 16) \
2885 || FIXNUM_OVERFLOW_P (UINTMAX_MAX >> 16)) \
2886 && FIXNUM_OVERFLOW_P ((i) >> 16)) \
2887 ? Fcons (make_number ((i) >> 16), make_number ((i) & 0xffff)) \
2888 : ! ((FIXNUM_OVERFLOW_P (INTMAX_MIN >> 16 >> 24) \
2889 || FIXNUM_OVERFLOW_P (UINTMAX_MAX >> 16 >> 24)) \
2890 && FIXNUM_OVERFLOW_P ((i) >> 16 >> 24)) \
2891 ? Fcons (make_number ((i) >> 16 >> 24), \
2892 Fcons (make_number ((i) >> 16 & 0xffffff), \
2893 make_number ((i) & 0xffff))) \
2896 /* Convert the Emacs representation CONS back to an integer of type
2897 TYPE, storing the result the variable VAR. Signal an error if CONS
2898 is not a valid representation or is out of range for TYPE. */
2899 #define CONS_TO_INTEGER(cons, type, var) \
2900 (TYPE_SIGNED (type) \
2901 ? ((var) = cons_to_signed (cons, TYPE_MINIMUM (type), TYPE_MAXIMUM (type))) \
2902 : ((var) = cons_to_unsigned (cons, TYPE_MAXIMUM (type))))
2903 extern intmax_t cons_to_signed (Lisp_Object
, intmax_t, intmax_t);
2904 extern uintmax_t cons_to_unsigned (Lisp_Object
, uintmax_t);
2906 extern sym_t
indirect_variable (sym_t
);
2907 extern _Noreturn
void args_out_of_range (Lisp_Object
, Lisp_Object
);
2908 extern _Noreturn
void args_out_of_range_3 (Lisp_Object
, Lisp_Object
,
2910 extern Lisp_Object
do_symval_forwarding (union Lisp_Fwd
*);
2911 extern void set_internal (Lisp_Object
, Lisp_Object
, Lisp_Object
, bool);
2912 extern void syms_of_data (void);
2913 extern void swap_in_global_binding (sym_t
);
2915 /* Defined in cmds.c */
2916 extern void syms_of_cmds (void);
2917 extern void keys_of_cmds (void);
2919 /* Defined in coding.c. */
2920 extern Lisp_Object Qcharset
;
2921 extern Lisp_Object
detect_coding_system (const unsigned char *, ptrdiff_t,
2922 ptrdiff_t, bool, bool, Lisp_Object
);
2923 extern void init_coding (void);
2924 extern void init_coding_once (void);
2925 extern void syms_of_coding (void);
2927 /* Defined in character.c. */
2928 extern ptrdiff_t chars_in_text (const unsigned char *, ptrdiff_t);
2929 extern ptrdiff_t multibyte_chars_in_text (const unsigned char *, ptrdiff_t);
2930 extern void syms_of_character (void);
2932 /* Defined in charset.c. */
2933 extern void init_charset (void);
2934 extern void init_charset_once (void);
2935 extern void syms_of_charset (void);
2936 /* Structure forward declarations. */
2939 /* Defined in syntax.c. */
2940 extern void init_syntax_once (void);
2941 extern void syms_of_syntax (void);
2943 /* Defined in fns.c. */
2944 extern Lisp_Object QCrehash_size
, QCrehash_threshold
;
2945 enum { NEXT_ALMOST_PRIME_LIMIT
= 11 };
2946 extern EMACS_INT
next_almost_prime (EMACS_INT
) ATTRIBUTE_CONST
;
2947 extern Lisp_Object
larger_vector (Lisp_Object
, ptrdiff_t, ptrdiff_t);
2948 extern void sweep_weak_hash_tables (void);
2949 extern Lisp_Object Qcursor_in_echo_area
;
2950 extern Lisp_Object Qstring_lessp
;
2951 extern Lisp_Object QCsize
, QCtest
, QCweakness
, Qequal
, Qeq
;
2952 EMACS_UINT
hash_string (char const *, ptrdiff_t);
2953 EMACS_UINT
sxhash (Lisp_Object
, int);
2954 Lisp_Object
make_hash_table (struct hash_table_test
, Lisp_Object
, Lisp_Object
,
2955 Lisp_Object
, Lisp_Object
);
2956 ptrdiff_t hash_lookup (struct Lisp_Hash_Table
*, Lisp_Object
, EMACS_UINT
*);
2957 ptrdiff_t hash_put (struct Lisp_Hash_Table
*, Lisp_Object
, Lisp_Object
,
2959 extern struct hash_table_test hashtest_eql
, hashtest_equal
;
2960 extern void validate_subarray (Lisp_Object
, Lisp_Object
, Lisp_Object
,
2961 ptrdiff_t, ptrdiff_t *, ptrdiff_t *);
2962 extern Lisp_Object
substring_both (Lisp_Object
, ptrdiff_t, ptrdiff_t,
2963 ptrdiff_t, ptrdiff_t);
2964 extern Lisp_Object
merge (Lisp_Object
, Lisp_Object
, Lisp_Object
);
2965 extern Lisp_Object
do_yes_or_no_p (Lisp_Object
);
2966 extern Lisp_Object
concat2 (Lisp_Object
, Lisp_Object
);
2967 extern Lisp_Object
concat3 (Lisp_Object
, Lisp_Object
, Lisp_Object
);
2968 extern Lisp_Object
nconc2 (Lisp_Object
, Lisp_Object
);
2969 extern Lisp_Object
assq_no_quit (Lisp_Object
, Lisp_Object
);
2970 extern Lisp_Object
assoc_no_quit (Lisp_Object
, Lisp_Object
);
2971 extern void clear_string_char_byte_cache (void);
2972 extern ptrdiff_t string_char_to_byte (Lisp_Object
, ptrdiff_t);
2973 extern ptrdiff_t string_byte_to_char (Lisp_Object
, ptrdiff_t);
2974 extern Lisp_Object
string_to_multibyte (Lisp_Object
);
2975 extern Lisp_Object
string_make_unibyte (Lisp_Object
);
2976 extern void init_fns_once (void);
2977 extern void syms_of_fns (void);
2979 /* Defined in floatfns.c. */
2980 extern void syms_of_floatfns (void);
2981 extern Lisp_Object
fmod_float (Lisp_Object x
, Lisp_Object y
);
2983 /* Defined in fringe.c. */
2984 extern void syms_of_fringe (void);
2985 extern void init_fringe (void);
2986 #ifdef HAVE_WINDOW_SYSTEM
2987 extern void mark_fringe_data (void);
2988 extern void init_fringe_once (void);
2989 #endif /* HAVE_WINDOW_SYSTEM */
2991 /* Defined in image.c. */
2992 extern Lisp_Object QCascent
, QCmargin
, QCrelief
;
2993 extern Lisp_Object QCconversion
;
2994 extern int x_bitmap_mask (struct frame
*, ptrdiff_t);
2995 extern void reset_image_types (void);
2996 extern void syms_of_image (void);
2998 /* Defined in insdel.c. */
2999 extern Lisp_Object Qinhibit_modification_hooks
;
3000 extern Lisp_Object Qregion_extract_function
;
3001 extern void move_gap_both (ptrdiff_t, ptrdiff_t);
3002 extern _Noreturn
void buffer_overflow (void);
3003 extern void make_gap (ptrdiff_t);
3004 extern void make_gap_1 (struct buffer
*, ptrdiff_t);
3005 extern ptrdiff_t copy_text (const unsigned char *, unsigned char *,
3006 ptrdiff_t, bool, bool);
3007 extern int count_combining_before (const unsigned char *,
3008 ptrdiff_t, ptrdiff_t, ptrdiff_t);
3009 extern int count_combining_after (const unsigned char *,
3010 ptrdiff_t, ptrdiff_t, ptrdiff_t);
3011 extern void insert (const char *, ptrdiff_t);
3012 extern void insert_and_inherit (const char *, ptrdiff_t);
3013 extern void insert_1_both (const char *, ptrdiff_t, ptrdiff_t,
3015 extern void insert_from_gap (ptrdiff_t, ptrdiff_t, bool text_at_gap_tail
);
3016 extern void insert_from_string (Lisp_Object
, ptrdiff_t, ptrdiff_t,
3017 ptrdiff_t, ptrdiff_t, bool);
3018 extern void insert_from_buffer (struct buffer
*, ptrdiff_t, ptrdiff_t, bool);
3019 extern void insert_char (int);
3020 extern void insert_string (const char *);
3021 extern void insert_before_markers (const char *, ptrdiff_t);
3022 extern void insert_before_markers_and_inherit (const char *, ptrdiff_t);
3023 extern void insert_from_string_before_markers (Lisp_Object
, ptrdiff_t,
3024 ptrdiff_t, ptrdiff_t,
3026 extern void del_range (ptrdiff_t, ptrdiff_t);
3027 extern Lisp_Object
del_range_1 (ptrdiff_t, ptrdiff_t, bool, bool);
3028 extern void del_range_byte (ptrdiff_t, ptrdiff_t, bool);
3029 extern void del_range_both (ptrdiff_t, ptrdiff_t, ptrdiff_t, ptrdiff_t, bool);
3030 extern Lisp_Object
del_range_2 (ptrdiff_t, ptrdiff_t,
3031 ptrdiff_t, ptrdiff_t, bool);
3032 extern void modify_text (ptrdiff_t, ptrdiff_t);
3033 extern void prepare_to_modify_buffer (ptrdiff_t, ptrdiff_t, ptrdiff_t *);
3034 extern void prepare_to_modify_buffer_1 (ptrdiff_t, ptrdiff_t, ptrdiff_t *);
3035 extern void invalidate_buffer_caches (struct buffer
*, ptrdiff_t, ptrdiff_t);
3036 extern void signal_after_change (ptrdiff_t, ptrdiff_t, ptrdiff_t);
3037 extern void adjust_after_insert (ptrdiff_t, ptrdiff_t, ptrdiff_t,
3038 ptrdiff_t, ptrdiff_t);
3039 extern void adjust_markers_for_delete (ptrdiff_t, ptrdiff_t,
3040 ptrdiff_t, ptrdiff_t);
3041 extern void replace_range (ptrdiff_t, ptrdiff_t, Lisp_Object
, bool, bool, bool);
3042 extern void replace_range_2 (ptrdiff_t, ptrdiff_t, ptrdiff_t, ptrdiff_t,
3043 const char *, ptrdiff_t, ptrdiff_t, bool);
3044 extern void syms_of_insdel (void);
3046 /* Defined in dispnew.c. */
3047 #if (defined PROFILING \
3048 && (defined __FreeBSD__ || defined GNU_LINUX || defined __MINGW32__))
3049 _Noreturn
void __executable_start (void);
3051 extern Lisp_Object Vwindow_system
;
3052 extern Lisp_Object
sit_for (Lisp_Object
, bool, int);
3054 /* Defined in xdisp.c. */
3055 extern Lisp_Object Qinhibit_point_motion_hooks
;
3056 extern Lisp_Object Qinhibit_redisplay
;
3057 extern Lisp_Object Qmenu_bar_update_hook
;
3058 extern Lisp_Object Qwindow_scroll_functions
;
3059 extern Lisp_Object Qoverriding_local_map
, Qoverriding_terminal_local_map
;
3060 extern Lisp_Object Qtext
, Qboth
, Qboth_horiz
, Qtext_image_horiz
;
3061 extern Lisp_Object Qspace
, Qcenter
, QCalign_to
;
3062 extern Lisp_Object Qbar
, Qhbar
, Qhollow
;
3063 extern Lisp_Object Qleft_margin
, Qright_margin
;
3064 extern Lisp_Object QCdata
, QCfile
;
3065 extern Lisp_Object QCmap
;
3066 extern Lisp_Object Qrisky_local_variable
;
3067 extern bool noninteractive_need_newline
;
3068 extern Lisp_Object echo_area_buffer
[2];
3069 extern void add_to_log (const char *, Lisp_Object
, Lisp_Object
);
3070 extern void check_message_stack (void);
3071 extern void setup_echo_area_for_printing (int);
3072 extern bool push_message (void);
3073 extern void pop_message_unwind (void);
3074 extern Lisp_Object
restore_message_unwind (Lisp_Object
);
3075 extern void restore_message (void);
3076 extern Lisp_Object
current_message (void);
3077 extern void clear_message (bool, bool);
3078 extern void message (const char *, ...) ATTRIBUTE_FORMAT_PRINTF (1, 2);
3079 extern void message1 (const char *);
3080 extern void message1_nolog (const char *);
3081 extern void message3 (Lisp_Object
);
3082 extern void message3_nolog (Lisp_Object
);
3083 extern void message_dolog (const char *, ptrdiff_t, bool, bool);
3084 extern void message_with_string (const char *, Lisp_Object
, int);
3085 extern void message_log_maybe_newline (void);
3086 extern void update_echo_area (void);
3087 extern void truncate_echo_area (ptrdiff_t);
3088 extern void redisplay (void);
3090 void set_frame_cursor_types (struct frame
*, Lisp_Object
);
3091 extern void syms_of_xdisp (void);
3092 extern void init_xdisp (void);
3093 extern Lisp_Object
safe_eval (Lisp_Object
);
3094 extern int pos_visible_p (struct window
*, ptrdiff_t, int *,
3095 int *, int *, int *, int *, int *);
3097 /* Defined in xsettings.c. */
3098 extern void syms_of_xsettings (void);
3100 /* Defined in vm-limit.c. */
3101 extern void memory_warnings (void *, void (*warnfun
) (const char *));
3103 /* Defined in alloc.c. */
3104 extern void check_pure_size (void);
3105 extern void free_misc (Lisp_Object
);
3106 extern void allocate_string_data (Lisp_Object
, EMACS_INT
, EMACS_INT
);
3107 extern void malloc_warning (const char *);
3108 extern _Noreturn
void memory_full (size_t);
3109 extern _Noreturn
void buffer_memory_full (ptrdiff_t);
3110 #if defined REL_ALLOC && !defined SYSTEM_MALLOC
3111 extern void refill_memory_reserve (void);
3113 extern const char *pending_malloc_warning
;
3114 extern Lisp_Object zero_vector
;
3115 extern Lisp_Object
list1 (Lisp_Object
);
3116 extern Lisp_Object
list2 (Lisp_Object
, Lisp_Object
);
3117 extern Lisp_Object
list3 (Lisp_Object
, Lisp_Object
, Lisp_Object
);
3118 extern Lisp_Object
list4 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
3119 extern Lisp_Object
list5 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
,
3121 enum constype
{CONSTYPE_HEAP
, CONSTYPE_PURE
};
3122 extern Lisp_Object
listn (enum constype
, ptrdiff_t, Lisp_Object
, ...);
3124 /* Build a frequently used 2/3/4-integer lists. */
3127 list2i (EMACS_INT x
, EMACS_INT y
)
3129 return list2 (make_number (x
), make_number (y
));
3133 list3i (EMACS_INT x
, EMACS_INT y
, EMACS_INT w
)
3135 return list3 (make_number (x
), make_number (y
), make_number (w
));
3139 list4i (EMACS_INT x
, EMACS_INT y
, EMACS_INT w
, EMACS_INT h
)
3141 return list4 (make_number (x
), make_number (y
),
3142 make_number (w
), make_number (h
));
3145 extern Lisp_Object
make_uninit_bool_vector (EMACS_INT
);
3146 extern Lisp_Object
bool_vector_fill (Lisp_Object
, Lisp_Object
);
3147 extern _Noreturn
void string_overflow (void);
3148 extern Lisp_Object
make_string (const char *, ptrdiff_t);
3149 extern Lisp_Object
make_formatted_string (char *, const char *, ...)
3150 ATTRIBUTE_FORMAT_PRINTF (2, 3);
3151 extern Lisp_Object
make_unibyte_string (const char *, ptrdiff_t);
3153 /* Make unibyte string from C string when the length isn't known. */
3156 build_unibyte_string (const char *str
)
3158 return make_unibyte_string (str
, strlen (str
));
3161 extern Lisp_Object
make_multibyte_string (const char *, ptrdiff_t, ptrdiff_t);
3162 extern Lisp_Object
make_event_array (ptrdiff_t, Lisp_Object
*);
3163 extern Lisp_Object
make_uninit_string (EMACS_INT
);
3164 extern Lisp_Object
make_uninit_multibyte_string (EMACS_INT
, EMACS_INT
);
3165 extern Lisp_Object
make_string_from_bytes (const char *, ptrdiff_t, ptrdiff_t);
3166 extern Lisp_Object
make_specified_string (const char *,
3167 ptrdiff_t, ptrdiff_t, bool);
3168 extern Lisp_Object
make_pure_string (const char *, ptrdiff_t, ptrdiff_t, bool);
3169 extern Lisp_Object
make_pure_c_string (const char *, ptrdiff_t);
3171 /* Make a string allocated in pure space, use STR as string data. */
3174 build_pure_c_string (const char *str
)
3176 return make_pure_c_string (str
, strlen (str
));
3179 /* Make a string from the data at STR, treating it as multibyte if the
3183 build_string (const char *str
)
3185 return make_string (str
, strlen (str
));
3188 extern Lisp_Object
pure_cons (Lisp_Object
, Lisp_Object
);
3189 extern void make_byte_code (struct Lisp_Vector
*);
3190 extern Lisp_Object Qchar_table_extra_slots
;
3191 extern struct Lisp_Vector
*allocate_vector (EMACS_INT
);
3193 /* Make an uninitialized vector for SIZE objects. NOTE: you must
3194 be sure that GC cannot happen until the vector is completely
3195 initialized. E.g. the following code is likely to crash:
3197 v = make_uninit_vector (3);
3199 ASET (v, 1, Ffunction_can_gc ());
3200 ASET (v, 2, obj1); */
3203 make_uninit_vector (ptrdiff_t size
)
3206 struct Lisp_Vector
*p
;
3208 p
= allocate_vector (size
);
3213 extern struct Lisp_Vector
*allocate_pseudovector (int, int, enum pvec_type
);
3214 #define ALLOCATE_PSEUDOVECTOR(typ,field,tag) \
3216 allocate_pseudovector \
3217 (VECSIZE (typ), PSEUDOVECSIZE (typ, field), tag))
3218 extern struct Lisp_Hash_Table
*allocate_hash_table (void);
3219 extern struct window
*allocate_window (void);
3220 extern struct frame
*allocate_frame (void);
3221 extern struct Lisp_Process
*allocate_process (void);
3222 extern struct terminal
*allocate_terminal (void);
3223 extern Lisp_Object
make_float (double);
3224 extern void display_malloc_warning (void);
3225 extern Lisp_Object
make_save_int_int_int (ptrdiff_t, ptrdiff_t, ptrdiff_t);
3226 extern Lisp_Object
make_save_obj_obj_obj_obj (Lisp_Object
, Lisp_Object
,
3227 Lisp_Object
, Lisp_Object
);
3228 extern Lisp_Object
make_save_ptr (void *);
3229 extern Lisp_Object
make_save_ptr_int (void *, ptrdiff_t);
3230 extern Lisp_Object
make_save_ptr_ptr (void *, void *);
3231 extern Lisp_Object
make_save_funcptr_ptr_obj (void (*) (void), void *,
3233 extern Lisp_Object
make_save_memory (Lisp_Object
*, ptrdiff_t);
3234 extern void free_save_value (Lisp_Object
);
3235 extern Lisp_Object
build_overlay (Lisp_Object
, Lisp_Object
, Lisp_Object
);
3236 extern void init_alloc_once (void);
3237 extern void init_alloc (void);
3238 extern void syms_of_alloc (void);
3239 extern struct buffer
* allocate_buffer (void);
3240 extern int valid_lisp_object_p (Lisp_Object
);
3241 extern int relocatable_string_data_p (const char *);
3244 /* Defined in ralloc.c. */
3245 extern void *r_alloc (void **, size_t) ATTRIBUTE_ALLOC_SIZE ((2));
3246 extern void r_alloc_free (void **);
3247 extern void *r_re_alloc (void **, size_t) ATTRIBUTE_ALLOC_SIZE ((2));
3248 extern void r_alloc_reset_variable (void **, void **);
3249 extern void r_alloc_inhibit_buffer_relocation (int);
3252 /* Defined in chartab.c. */
3253 extern Lisp_Object
copy_char_table (Lisp_Object
);
3254 extern Lisp_Object
char_table_ref_and_range (Lisp_Object
, int,
3256 extern void char_table_set_range (Lisp_Object
, int, int, Lisp_Object
);
3257 extern void map_char_table (void (*) (Lisp_Object
, Lisp_Object
,
3259 Lisp_Object
, Lisp_Object
, Lisp_Object
);
3260 extern void map_char_table_for_charset (void (*c_function
) (Lisp_Object
, Lisp_Object
),
3261 Lisp_Object
, Lisp_Object
,
3262 Lisp_Object
, struct charset
*,
3263 unsigned, unsigned);
3264 extern Lisp_Object
uniprop_table (Lisp_Object
);
3265 extern void syms_of_chartab (void);
3267 /* Defined in print.c. */
3268 extern Lisp_Object Vprin1_to_string_buffer
;
3269 extern void debug_print (Lisp_Object
) EXTERNALLY_VISIBLE
;
3270 extern Lisp_Object Qstandard_output
;
3271 extern Lisp_Object Qexternal_debugging_output
;
3272 extern void temp_output_buffer_setup (const char *);
3273 extern int print_level
;
3274 extern Lisp_Object Qprint_escape_newlines
;
3275 extern void write_string (const char *, int);
3276 extern void print_error_message (Lisp_Object
, Lisp_Object
, const char *,
3278 extern Lisp_Object internal_with_output_to_temp_buffer
3279 (const char *, Lisp_Object (*) (Lisp_Object
), Lisp_Object
);
3280 #define FLOAT_TO_STRING_BUFSIZE 350
3281 extern int float_to_string (char *, double);
3282 extern void init_print_once (void);
3283 extern void syms_of_print (void);
3285 /* Defined in doprnt.c. */
3286 extern ptrdiff_t doprnt (char *, ptrdiff_t, const char *, const char *,
3288 extern ptrdiff_t esprintf (char *, char const *, ...)
3289 ATTRIBUTE_FORMAT_PRINTF (2, 3);
3290 extern ptrdiff_t exprintf (char **, ptrdiff_t *, char const *, ptrdiff_t,
3292 ATTRIBUTE_FORMAT_PRINTF (5, 6);
3293 extern ptrdiff_t evxprintf (char **, ptrdiff_t *, char const *, ptrdiff_t,
3294 char const *, va_list)
3295 ATTRIBUTE_FORMAT_PRINTF (5, 0);
3297 /* Defined in lread.c. */
3298 extern Lisp_Object Qvariable_documentation
, Qstandard_input
;
3299 extern Lisp_Object Qbackquote
, Qcomma
, Qcomma_at
, Qcomma_dot
, Qfunction
;
3300 extern Lisp_Object Qlexical_binding
;
3301 extern Lisp_Object
check_obarray (Lisp_Object
);
3302 extern Lisp_Object
intern_1 (const char *, ptrdiff_t);
3303 extern Lisp_Object
intern_c_string_1 (const char *, ptrdiff_t);
3304 extern Lisp_Object
obhash (Lisp_Object
);
3306 LOADHIST_ATTACH (Lisp_Object x
)
3309 Vcurrent_load_list
= Fcons (x
, Vcurrent_load_list
);
3311 extern int openp (Lisp_Object
, Lisp_Object
, Lisp_Object
,
3312 Lisp_Object
*, Lisp_Object
, bool);
3313 extern Lisp_Object
string_to_number (char const *, int, bool);
3314 extern void map_obarray (Lisp_Object
, void (*) (Lisp_Object
, Lisp_Object
),
3316 extern void dir_warning (const char *, Lisp_Object
);
3317 extern void init_obarray (void);
3318 extern void init_lread (void);
3319 extern void syms_of_lread (void);
3322 intern (const char *str
)
3324 return intern_1 (str
, strlen (str
));
3328 intern_c_string (const char *str
)
3330 return intern_c_string_1 (str
, strlen (str
));
3333 /* Defined in eval.c. */
3334 extern Lisp_Object Qexit
, Qinteractive
, Qcommandp
, Qmacro
;
3335 extern Lisp_Object Qinhibit_quit
, Qinternal_interpreter_environment
, Qclosure
;
3336 extern Lisp_Object Qand_rest
;
3337 extern Lisp_Object Vautoload_queue
;
3338 extern Lisp_Object Vsignaling_function
;
3339 extern Lisp_Object inhibit_lisp_code
;
3340 extern struct handler
*handlerlist
;
3342 /* To run a normal hook, use the appropriate function from the list below.
3343 The calling convention:
3345 if (!NILP (Vrun_hooks))
3346 call1 (Vrun_hooks, Qmy_funny_hook);
3348 should no longer be used. */
3349 extern Lisp_Object Vrun_hooks
;
3350 extern void run_hook_with_args_2 (Lisp_Object
, Lisp_Object
, Lisp_Object
);
3351 extern Lisp_Object
run_hook_with_args (ptrdiff_t nargs
, Lisp_Object
*args
,
3352 Lisp_Object (*funcall
)
3353 (ptrdiff_t nargs
, Lisp_Object
*args
));
3354 extern _Noreturn
void xsignal (Lisp_Object
, Lisp_Object
);
3355 extern _Noreturn
void xsignal0 (Lisp_Object
);
3356 extern _Noreturn
void xsignal1 (Lisp_Object
, Lisp_Object
);
3357 extern _Noreturn
void xsignal2 (Lisp_Object
, Lisp_Object
, Lisp_Object
);
3358 extern _Noreturn
void xsignal3 (Lisp_Object
, Lisp_Object
, Lisp_Object
,
3360 extern _Noreturn
void signal_error (const char *, Lisp_Object
);
3361 extern Lisp_Object
eval_sub (Lisp_Object form
);
3362 extern Lisp_Object
Ffuncall (ptrdiff_t nargs
, Lisp_Object
*args
);
3363 extern Lisp_Object
apply1 (Lisp_Object
, Lisp_Object
);
3364 extern Lisp_Object
call0 (Lisp_Object
);
3365 extern Lisp_Object
call1 (Lisp_Object
, Lisp_Object
);
3366 extern Lisp_Object
call2 (Lisp_Object
, Lisp_Object
, Lisp_Object
);
3367 extern Lisp_Object
call3 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
3368 extern Lisp_Object
call4 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
3369 extern Lisp_Object
call5 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
3370 extern Lisp_Object
call6 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
3371 extern Lisp_Object
call7 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
3372 extern Lisp_Object
internal_catch (Lisp_Object
, Lisp_Object (*) (Lisp_Object
), Lisp_Object
);
3373 extern Lisp_Object
internal_lisp_condition_case (Lisp_Object
, Lisp_Object
, Lisp_Object
);
3374 extern Lisp_Object
internal_condition_case (Lisp_Object (*) (void), Lisp_Object
, Lisp_Object (*) (Lisp_Object
));
3375 extern Lisp_Object
internal_condition_case_1 (Lisp_Object (*) (Lisp_Object
), Lisp_Object
, Lisp_Object
, Lisp_Object (*) (Lisp_Object
));
3376 extern Lisp_Object
internal_condition_case_2 (Lisp_Object (*) (Lisp_Object
, Lisp_Object
), Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object (*) (Lisp_Object
));
3377 extern Lisp_Object internal_condition_case_n
3378 (Lisp_Object (*) (ptrdiff_t, Lisp_Object
*), ptrdiff_t, Lisp_Object
*,
3379 Lisp_Object
, Lisp_Object (*) (Lisp_Object
, ptrdiff_t, Lisp_Object
*));
3380 extern void specbind (Lisp_Object
, Lisp_Object
);
3381 extern void record_unwind_protect_1 (void (*) (Lisp_Object
), Lisp_Object
, bool);
3382 extern void record_unwind_protect (void (*) (Lisp_Object
), Lisp_Object
);
3383 extern void record_unwind_protect_ptr_1 (void (*) (void *), void *, bool);
3384 extern void record_unwind_protect_ptr (void (*) (void *), void *);
3385 extern void record_unwind_protect_int_1 (void (*) (int), int, bool);
3386 extern void record_unwind_protect_int (void (*) (int), int);
3387 extern void record_unwind_protect_void_1 (void (*) (void), bool);
3388 extern void record_unwind_protect_void (void (*) (void));
3389 extern void dynwind_begin (void);
3390 extern void dynwind_end (void);
3391 extern _Noreturn
void error (const char *, ...) ATTRIBUTE_FORMAT_PRINTF (1, 2);
3392 extern _Noreturn
void verror (const char *, va_list)
3393 ATTRIBUTE_FORMAT_PRINTF (1, 0);
3394 extern void un_autoload (Lisp_Object
);
3395 extern Lisp_Object
call_debugger (Lisp_Object arg
);
3396 extern void init_eval_once (void);
3397 extern Lisp_Object
safe_call (ptrdiff_t, Lisp_Object
, ...);
3398 extern Lisp_Object
safe_call1 (Lisp_Object
, Lisp_Object
);
3399 extern Lisp_Object
safe_call2 (Lisp_Object
, Lisp_Object
, Lisp_Object
);
3400 extern void init_eval (void);
3401 extern void syms_of_eval (void);
3402 extern void unwind_body (Lisp_Object
);
3403 extern void mark_specpdl (void);
3404 extern bool let_shadows_buffer_binding_p (sym_t symbol
);
3405 extern bool let_shadows_global_binding_p (Lisp_Object symbol
);
3406 extern _Noreturn SCM
abort_to_prompt (SCM
, SCM
);
3407 extern SCM
call_with_prompt (SCM
, SCM
, SCM
);
3408 extern SCM
make_prompt_tag (void);
3411 /* Defined in editfns.c. */
3412 extern Lisp_Object Qfield
;
3413 extern void insert1 (Lisp_Object
);
3414 extern Lisp_Object
format2 (const char *, Lisp_Object
, Lisp_Object
);
3415 extern Lisp_Object
save_excursion_save (void);
3416 extern Lisp_Object
save_restriction_save (void);
3417 extern void save_excursion_restore (Lisp_Object
);
3418 extern void save_restriction_restore (Lisp_Object
);
3419 extern _Noreturn
void time_overflow (void);
3420 extern Lisp_Object
make_buffer_string (ptrdiff_t, ptrdiff_t, bool);
3421 extern Lisp_Object
make_buffer_string_both (ptrdiff_t, ptrdiff_t, ptrdiff_t,
3423 extern void init_editfns (void);
3424 extern void syms_of_editfns (void);
3425 extern void set_time_zone_rule (const char *);
3427 /* Defined in buffer.c. */
3428 extern bool mouse_face_overlay_overlaps (Lisp_Object
);
3429 extern _Noreturn
void nsberror (Lisp_Object
);
3430 extern void adjust_overlays_for_insert (ptrdiff_t, ptrdiff_t);
3431 extern void adjust_overlays_for_delete (ptrdiff_t, ptrdiff_t);
3432 extern void fix_start_end_in_overlays (ptrdiff_t, ptrdiff_t);
3433 extern void report_overlay_modification (Lisp_Object
, Lisp_Object
, bool,
3434 Lisp_Object
, Lisp_Object
, Lisp_Object
);
3435 extern bool overlay_touches_p (ptrdiff_t);
3436 extern Lisp_Object
other_buffer_safely (Lisp_Object
);
3437 extern Lisp_Object
get_truename_buffer (Lisp_Object
);
3438 extern void init_buffer_once (void);
3439 extern void init_buffer (int);
3440 extern void syms_of_buffer (void);
3441 extern void keys_of_buffer (void);
3443 /* Defined in marker.c. */
3445 extern ptrdiff_t marker_position (Lisp_Object
);
3446 extern ptrdiff_t marker_byte_position (Lisp_Object
);
3447 extern void clear_charpos_cache (struct buffer
*);
3448 extern ptrdiff_t buf_charpos_to_bytepos (struct buffer
*, ptrdiff_t);
3449 extern ptrdiff_t buf_bytepos_to_charpos (struct buffer
*, ptrdiff_t);
3450 extern void unchain_marker (struct Lisp_Marker
*marker
);
3451 extern Lisp_Object
set_marker_restricted (Lisp_Object
, Lisp_Object
, Lisp_Object
);
3452 extern Lisp_Object
set_marker_both (Lisp_Object
, Lisp_Object
, ptrdiff_t, ptrdiff_t);
3453 extern Lisp_Object
set_marker_restricted_both (Lisp_Object
, Lisp_Object
,
3454 ptrdiff_t, ptrdiff_t);
3455 extern Lisp_Object
build_marker (struct buffer
*, ptrdiff_t, ptrdiff_t);
3456 extern void syms_of_marker (void);
3458 /* Defined in fileio.c. */
3460 extern Lisp_Object Qfile_error
;
3461 extern Lisp_Object Qfile_notify_error
;
3462 extern Lisp_Object Qfile_exists_p
;
3463 extern Lisp_Object Qfile_directory_p
;
3464 extern Lisp_Object Qinsert_file_contents
;
3465 extern Lisp_Object Qfile_name_history
;
3466 extern Lisp_Object
expand_and_dir_to_file (Lisp_Object
, Lisp_Object
);
3467 extern Lisp_Object
write_region (Lisp_Object
, Lisp_Object
, Lisp_Object
,
3468 Lisp_Object
, Lisp_Object
, Lisp_Object
,
3470 extern void close_file_unwind (int);
3471 extern void close_file_ptr_unwind (void *);
3472 extern void fclose_unwind (void *);
3473 extern void fclose_ptr_unwind (void *);
3474 extern void restore_point_unwind (Lisp_Object
);
3475 extern _Noreturn
void report_file_errno (const char *, Lisp_Object
, int);
3476 extern _Noreturn
void report_file_error (const char *, Lisp_Object
);
3477 extern bool internal_delete_file (Lisp_Object
);
3478 extern Lisp_Object
emacs_readlinkat (int, const char *);
3479 extern bool file_directory_p (const char *);
3480 extern bool file_accessible_directory_p (const char *);
3481 extern void init_fileio (void);
3482 extern void syms_of_fileio (void);
3483 extern Lisp_Object
make_temp_name (Lisp_Object
, bool);
3484 extern Lisp_Object Qdelete_file
;
3486 /* Defined in search.c. */
3487 extern void shrink_regexp_cache (void);
3488 extern void restore_search_regs (void);
3489 extern void record_unwind_save_match_data (void);
3490 struct re_registers
;
3491 extern struct re_pattern_buffer
*compile_pattern (Lisp_Object
,
3492 struct re_registers
*,
3493 Lisp_Object
, bool, bool);
3494 extern ptrdiff_t fast_string_match (Lisp_Object
, Lisp_Object
);
3495 extern ptrdiff_t fast_c_string_match_ignore_case (Lisp_Object
, const char *,
3497 extern ptrdiff_t fast_string_match_ignore_case (Lisp_Object
, Lisp_Object
);
3498 extern ptrdiff_t fast_looking_at (Lisp_Object
, ptrdiff_t, ptrdiff_t,
3499 ptrdiff_t, ptrdiff_t, Lisp_Object
);
3500 extern ptrdiff_t find_newline (ptrdiff_t, ptrdiff_t, ptrdiff_t, ptrdiff_t,
3501 ptrdiff_t, ptrdiff_t *, ptrdiff_t *, bool);
3502 extern ptrdiff_t scan_newline (ptrdiff_t, ptrdiff_t, ptrdiff_t, ptrdiff_t,
3504 extern ptrdiff_t find_newline_no_quit (ptrdiff_t, ptrdiff_t,
3505 ptrdiff_t, ptrdiff_t *);
3506 extern ptrdiff_t find_before_next_newline (ptrdiff_t, ptrdiff_t,
3507 ptrdiff_t, ptrdiff_t *);
3508 extern void syms_of_search (void);
3509 extern void clear_regexp_cache (void);
3511 /* Defined in minibuf.c. */
3513 extern Lisp_Object Qcompletion_ignore_case
;
3514 extern Lisp_Object Vminibuffer_list
;
3515 extern Lisp_Object last_minibuf_string
;
3516 extern Lisp_Object
get_minibuffer (EMACS_INT
);
3517 extern void init_minibuf_once (void);
3518 extern void syms_of_minibuf (void);
3520 /* Defined in callint.c. */
3522 extern Lisp_Object Qminus
, Qplus
;
3523 extern Lisp_Object Qprogn
;
3524 extern Lisp_Object Qwhen
;
3525 extern Lisp_Object Qmouse_leave_buffer_hook
;
3526 extern void syms_of_callint (void);
3528 /* Defined in casefiddle.c. */
3530 extern Lisp_Object Qidentity
;
3531 extern void syms_of_casefiddle (void);
3532 extern void keys_of_casefiddle (void);
3534 /* Defined in casetab.c. */
3536 extern void init_casetab_once (void);
3537 extern void syms_of_casetab (void);
3539 /* Defined in keyboard.c. */
3541 extern Lisp_Object echo_message_buffer
;
3542 extern struct kboard
*echo_kboard
;
3543 extern void cancel_echoing (void);
3544 extern Lisp_Object Qdisabled
, QCfilter
;
3545 extern Lisp_Object Qup
, Qdown
;
3546 extern Lisp_Object last_undo_boundary
;
3547 extern bool input_pending
;
3548 extern Lisp_Object
menu_bar_items (Lisp_Object
);
3549 extern Lisp_Object
tool_bar_items (Lisp_Object
, int *);
3550 extern void discard_mouse_events (void);
3552 void handle_input_available_signal (int);
3554 extern Lisp_Object pending_funcalls
;
3555 extern bool detect_input_pending (void);
3556 extern bool detect_input_pending_ignore_squeezables (void);
3557 extern bool detect_input_pending_run_timers (bool);
3558 extern void safe_run_hooks (Lisp_Object
);
3559 extern void cmd_error_internal (Lisp_Object
, const char *);
3560 extern Lisp_Object
command_loop_1 (void);
3561 extern Lisp_Object
read_menu_command (void);
3562 extern Lisp_Object
recursive_edit_1 (void);
3563 extern void record_auto_save (void);
3564 extern void force_auto_save_soon (void);
3565 extern void init_keyboard (void);
3566 extern void syms_of_keyboard (void);
3567 extern void keys_of_keyboard (void);
3569 /* Defined in indent.c. */
3570 extern ptrdiff_t current_column (void);
3571 extern void invalidate_current_column (void);
3572 extern bool indented_beyond_p (ptrdiff_t, ptrdiff_t, EMACS_INT
);
3573 extern void syms_of_indent (void);
3575 /* Defined in frame.c. */
3576 extern Lisp_Object Qonly
, Qnone
;
3577 extern void set_frame_param (struct frame
*, Lisp_Object
, Lisp_Object
);
3578 extern void store_frame_param (struct frame
*, Lisp_Object
, Lisp_Object
);
3579 extern void store_in_alist (Lisp_Object
*, Lisp_Object
, Lisp_Object
);
3580 extern Lisp_Object
do_switch_frame (Lisp_Object
, int, int, Lisp_Object
);
3581 extern Lisp_Object
get_frame_param (struct frame
*, Lisp_Object
);
3582 extern void frames_discard_buffer (Lisp_Object
);
3583 extern void syms_of_frame (void);
3585 /* Defined in emacs.c. */
3586 extern char **initial_argv
;
3587 extern int initial_argc
;
3588 #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS)
3589 extern bool display_arg
;
3591 extern Lisp_Object
decode_env_path (const char *, const char *, bool);
3592 extern Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
3593 extern Lisp_Object Qfile_name_handler_alist
;
3594 extern _Noreturn
void terminate_due_to_signal (int, int);
3595 extern Lisp_Object Qkill_emacs
;
3597 extern Lisp_Object Vlibrary_cache
;
3600 void fixup_locale (void);
3601 void synchronize_system_messages_locale (void);
3602 void synchronize_system_time_locale (void);
3604 INLINE
void fixup_locale (void) {}
3605 INLINE
void synchronize_system_messages_locale (void) {}
3606 INLINE
void synchronize_system_time_locale (void) {}
3608 extern void shut_down_emacs (int, Lisp_Object
);
3610 /* True means don't do interactive redisplay and don't change tty modes. */
3611 extern bool noninteractive
;
3613 /* True means remove site-lisp directories from load-path. */
3614 extern bool no_site_lisp
;
3616 /* Pipe used to send exit notification to the daemon parent at
3618 extern int daemon_pipe
[2];
3619 #define IS_DAEMON (daemon_pipe[1] != 0)
3621 /* True if handling a fatal error already. */
3622 extern bool fatal_error_in_progress
;
3624 /* True means don't do use window-system-specific display code. */
3625 extern bool inhibit_window_system
;
3626 /* True means that a filter or a sentinel is running. */
3627 extern bool running_asynch_code
;
3629 /* Defined in process.c. */
3630 extern Lisp_Object QCtype
, Qlocal
;
3631 extern void kill_buffer_processes (Lisp_Object
);
3632 extern int wait_reading_process_output (intmax_t, int, int, bool, Lisp_Object
,
3633 struct Lisp_Process
*, int);
3634 /* Max value for the first argument of wait_reading_process_output. */
3635 #if __GNUC__ == 3 || (__GNUC__ == 4 && __GNUC_MINOR__ <= 5)
3636 /* Work around a bug in GCC 3.4.2, known to be fixed in GCC 4.6.3.
3637 The bug merely causes a bogus warning, but the warning is annoying. */
3638 # define WAIT_READING_MAX min (TYPE_MAXIMUM (time_t), INTMAX_MAX)
3640 # define WAIT_READING_MAX INTMAX_MAX
3642 extern void add_keyboard_wait_descriptor (int);
3643 extern void delete_keyboard_wait_descriptor (int);
3645 extern void add_gpm_wait_descriptor (int);
3646 extern void delete_gpm_wait_descriptor (int);
3648 extern void init_process_emacs (void);
3649 extern void syms_of_process (void);
3650 extern void setup_process_coding_systems (Lisp_Object
);
3652 /* Defined in callproc.c. */
3656 extern int child_setup (int, int, int, char **, bool, Lisp_Object
);
3657 extern void init_callproc_1 (void);
3658 extern void init_callproc (void);
3659 extern void set_initial_environment (void);
3660 extern void syms_of_callproc (void);
3662 /* Defined in doc.c. */
3663 extern Lisp_Object Qfunction_documentation
;
3664 extern Lisp_Object
read_doc_string (Lisp_Object
);
3665 extern Lisp_Object
get_doc_string (Lisp_Object
, bool, bool);
3666 extern void syms_of_doc (void);
3667 extern int read_bytecode_char (bool);
3669 /* Defined in bytecode.c. */
3670 extern void syms_of_bytecode (void);
3671 extern Lisp_Object
exec_byte_code (Lisp_Object
, Lisp_Object
, Lisp_Object
,
3672 Lisp_Object
, ptrdiff_t, Lisp_Object
*);
3674 /* Defined in macros.c. */
3675 extern void init_macros (void);
3676 extern void syms_of_macros (void);
3678 /* Defined in undo.c. */
3679 extern Lisp_Object Qapply
;
3680 extern Lisp_Object Qinhibit_read_only
;
3681 extern void truncate_undo_list (struct buffer
*);
3682 extern void record_insert (ptrdiff_t, ptrdiff_t);
3683 extern void record_delete (ptrdiff_t, Lisp_Object
, bool);
3684 extern void record_first_change (void);
3685 extern void record_change (ptrdiff_t, ptrdiff_t);
3686 extern void record_property_change (ptrdiff_t, ptrdiff_t,
3687 Lisp_Object
, Lisp_Object
,
3689 extern void syms_of_undo (void);
3690 /* Defined in textprop.c. */
3691 extern Lisp_Object Qmouse_face
;
3692 extern Lisp_Object Qinsert_in_front_hooks
, Qinsert_behind_hooks
;
3693 extern Lisp_Object Qminibuffer_prompt
;
3695 extern void report_interval_modification (Lisp_Object
, Lisp_Object
);
3697 /* Defined in menu.c. */
3698 extern void syms_of_menu (void);
3700 /* Defined in xmenu.c. */
3701 extern void syms_of_xmenu (void);
3703 /* Defined in termchar.h. */
3704 struct tty_display_info
;
3706 /* Defined in termhooks.h. */
3709 /* Defined in sysdep.c. */
3710 #ifndef HAVE_GET_CURRENT_DIR_NAME
3711 extern char *get_current_dir_name (void);
3713 extern void stuff_char (char c
);
3714 extern void init_foreground_group (void);
3715 extern void sys_subshell (void);
3716 extern void sys_suspend (void);
3717 extern void discard_tty_input (void);
3718 extern void init_sys_modes (struct tty_display_info
*);
3719 extern void reset_sys_modes (struct tty_display_info
*);
3720 extern void init_all_sys_modes (void);
3721 extern void reset_all_sys_modes (void);
3722 extern void child_setup_tty (int);
3723 extern void setup_pty (int);
3724 extern int set_window_size (int, int, int);
3725 extern EMACS_INT
get_random (void);
3726 extern void seed_random (void *, ptrdiff_t);
3727 extern void init_random (void);
3728 extern void emacs_backtrace (int);
3729 extern _Noreturn
void emacs_abort (void) NO_INLINE
;
3730 extern int emacs_open (const char *, int, int);
3731 extern int emacs_pipe (int[2]);
3732 extern int emacs_close (int);
3733 extern ptrdiff_t emacs_read (int, void *, ptrdiff_t);
3734 extern ptrdiff_t emacs_write (int, void const *, ptrdiff_t);
3735 extern ptrdiff_t emacs_write_sig (int, void const *, ptrdiff_t);
3736 extern void emacs_perror (char const *);
3738 extern void unlock_all_files (void);
3739 extern void lock_file (Lisp_Object
);
3740 extern void unlock_file (Lisp_Object
);
3741 extern void unlock_buffer (struct buffer
*);
3742 extern void syms_of_filelock (void);
3744 /* Defined in sound.c. */
3745 extern void syms_of_sound (void);
3747 /* Defined in category.c. */
3748 extern void init_category_once (void);
3749 extern Lisp_Object
char_category_set (int);
3750 extern void syms_of_category (void);
3752 /* Defined in ccl.c. */
3753 extern void syms_of_ccl (void);
3755 /* Defined in dired.c. */
3756 extern void syms_of_dired (void);
3757 extern Lisp_Object
directory_files_internal (Lisp_Object
, Lisp_Object
,
3758 Lisp_Object
, Lisp_Object
,
3761 /* Defined in term.c. */
3762 extern int *char_ins_del_vector
;
3763 extern void syms_of_term (void);
3764 extern _Noreturn
void fatal (const char *msgid
, ...)
3765 ATTRIBUTE_FORMAT_PRINTF (1, 2);
3767 /* Defined in terminal.c. */
3768 extern void syms_of_terminal (void);
3770 /* Defined in font.c. */
3771 extern void syms_of_font (void);
3772 extern void init_font (void);
3774 #ifdef HAVE_WINDOW_SYSTEM
3775 /* Defined in fontset.c. */
3776 extern void syms_of_fontset (void);
3778 /* Defined in xfns.c, w32fns.c, or macfns.c. */
3779 extern Lisp_Object Qfont_param
;
3782 /* Defined in gfilenotify.c */
3783 #ifdef HAVE_GFILENOTIFY
3784 extern void globals_of_gfilenotify (void);
3785 extern void syms_of_gfilenotify (void);
3788 /* Defined in inotify.c */
3790 extern void syms_of_inotify (void);
3793 #ifdef HAVE_W32NOTIFY
3794 /* Defined on w32notify.c. */
3795 extern void syms_of_w32notify (void);
3798 /* Defined in xfaces.c. */
3799 extern Lisp_Object Qdefault
, Qfringe
;
3800 extern Lisp_Object Qscroll_bar
, Qcursor
;
3801 extern Lisp_Object Qmode_line_inactive
;
3802 extern Lisp_Object Qface
;
3803 extern Lisp_Object Qnormal
;
3804 extern Lisp_Object QCfamily
, QCweight
, QCslant
;
3805 extern Lisp_Object QCheight
, QCname
, QCwidth
, QCforeground
, QCbackground
;
3806 extern Lisp_Object Qextra_light
, Qlight
, Qsemi_light
, Qsemi_bold
;
3807 extern Lisp_Object Qbold
, Qextra_bold
, Qultra_bold
;
3808 extern Lisp_Object Qoblique
, Qitalic
;
3809 extern Lisp_Object Vface_alternative_font_family_alist
;
3810 extern Lisp_Object Vface_alternative_font_registry_alist
;
3811 extern void syms_of_xfaces (void);
3813 #ifdef HAVE_X_WINDOWS
3814 /* Defined in xfns.c. */
3815 extern void syms_of_xfns (void);
3817 /* Defined in xsmfns.c. */
3818 extern void syms_of_xsmfns (void);
3820 /* Defined in xselect.c. */
3821 extern void syms_of_xselect (void);
3823 /* Defined in xterm.c. */
3824 extern void syms_of_xterm (void);
3825 #endif /* HAVE_X_WINDOWS */
3827 #ifdef HAVE_WINDOW_SYSTEM
3828 /* Defined in xterm.c, nsterm.m, w32term.c. */
3829 extern char *x_get_keysym_name (int);
3830 #endif /* HAVE_WINDOW_SYSTEM */
3833 /* Defined in xml.c. */
3834 extern void syms_of_xml (void);
3835 extern void xml_cleanup_parser (void);
3839 /* Defined in decompress.c. */
3840 extern void syms_of_decompress (void);
3844 /* Defined in dbusbind.c. */
3845 void syms_of_dbusbind (void);
3849 /* Defined in profiler.c. */
3850 extern bool profiler_memory_running
;
3851 extern void malloc_probe (size_t);
3852 extern void syms_of_profiler (void);
3856 /* Defined in msdos.c, w32.c. */
3857 extern char *emacs_root_dir (void);
3860 /* True means ^G can quit instantly. */
3861 extern bool immediate_quit
;
3863 extern void *xmalloc (size_t) ATTRIBUTE_MALLOC_SIZE ((1));
3864 extern void *xzalloc (size_t) ATTRIBUTE_MALLOC_SIZE ((1));
3865 extern void *xrealloc (void *, size_t) ATTRIBUTE_ALLOC_SIZE ((2));
3866 extern void xfree (void *);
3867 extern void *xmalloc_uncollectable (size_t) ATTRIBUTE_MALLOC_SIZE ((1));
3868 extern void *xmalloc_unsafe (size_t) ATTRIBUTE_MALLOC_SIZE ((1));
3869 extern void *xnmalloc (ptrdiff_t, ptrdiff_t) ATTRIBUTE_MALLOC_SIZE ((1,2));
3870 extern void *xnrealloc (void *, ptrdiff_t, ptrdiff_t)
3871 ATTRIBUTE_ALLOC_SIZE ((2,3));
3872 extern void *xpalloc (void *, ptrdiff_t *, ptrdiff_t, ptrdiff_t, ptrdiff_t);
3873 extern void *xmalloc_atomic (size_t) ATTRIBUTE_MALLOC_SIZE ((1));
3874 extern void *xzalloc_atomic (size_t) ATTRIBUTE_MALLOC_SIZE ((1));
3875 extern void *xmalloc_atomic_unsafe (size_t) ATTRIBUTE_MALLOC_SIZE ((1));
3876 extern void *xnmalloc_atomic (ptrdiff_t, ptrdiff_t) ATTRIBUTE_MALLOC_SIZE ((1,2));
3878 extern char *xstrdup (const char *) ATTRIBUTE_MALLOC
;
3879 extern char *xlispstrdup (Lisp_Object
) ATTRIBUTE_MALLOC
;
3880 extern void dupstring (char **, char const *);
3881 extern void xputenv (const char *);
3883 extern char *egetenv (const char *);
3885 /* Copy Lisp string to temporary (allocated on stack) C string. */
3887 #define xlispstrdupa(string) \
3888 memcpy (alloca (SBYTES (string) + 1), \
3889 SSDATA (string), SBYTES (string) + 1)
3891 /* Set up the name of the machine we're running on. */
3892 extern void init_system_name (void);
3894 /* Return the absolute value of X. X should be a signed integer
3895 expression without side effects, and X's absolute value should not
3896 exceed the maximum for its promoted type. This is called 'eabs'
3897 because 'abs' is reserved by the C standard. */
3898 #define eabs(x) ((x) < 0 ? -(x) : (x))
3900 /* Return a fixnum or float, depending on whether VAL fits in a Lisp
3903 #define make_fixnum_or_float(val) \
3904 (FIXNUM_OVERFLOW_P (val) ? make_float (val) : make_number (val))
3906 /* SAFE_ALLOCA normally allocates memory on the stack, but if size is
3907 larger than MAX_ALLOCA, use xmalloc to avoid overflowing the stack. */
3909 enum MAX_ALLOCA
{ MAX_ALLOCA
= 16 * 1024 };
3911 #define USE_SAFE_ALLOCA ((void) 0)
3913 /* SAFE_ALLOCA allocates a simple buffer. */
3915 #define SAFE_ALLOCA(size) ((size) < MAX_ALLOCA \
3919 /* SAFE_NALLOCA sets BUF to a newly allocated array of MULTIPLIER *
3920 NITEMS items, each of the same type as *BUF. MULTIPLIER must
3921 positive. The code is tuned for MULTIPLIER being a constant. */
3923 #define SAFE_NALLOCA(buf, multiplier, nitems) \
3925 if ((nitems) <= MAX_ALLOCA / sizeof *(buf) / (multiplier)) \
3926 (buf) = alloca (sizeof *(buf) * (multiplier) * (nitems)); \
3928 (buf) = xnmalloc (nitems, sizeof *(buf) * (multiplier)); \
3931 /* SAFE_FREE frees xmalloced memory and enables GC as needed. */
3933 #define SAFE_FREE() ((void) 0)
3935 /* SAFE_ALLOCA_LISP allocates an array of Lisp_Objects. */
3937 #define SAFE_ALLOCA_LISP(buf, nelt) \
3939 if ((nelt) < MAX_ALLOCA / word_size) \
3940 (buf) = alloca ((nelt) * word_size); \
3941 else if ((nelt) < min (PTRDIFF_MAX, SIZE_MAX) / word_size) \
3942 buf = xmalloc ((nelt) * word_size); \
3944 memory_full (SIZE_MAX); \
3947 /* Loop over all tails of a list, checking for cycles.
3948 FIXME: Make tortoise and n internal declarations.
3949 FIXME: Unroll the loop body so we don't need `n'. */
3950 #define FOR_EACH_TAIL(hare, list, tortoise, n) \
3951 for ((tortoise) = (hare) = (list), (n) = true; \
3953 (hare = XCDR (hare), (n) = !(n), \
3955 ? (EQ (hare, tortoise) \
3956 ? xsignal1 (Qcircular_list, list) \
3958 /* Move tortoise before the next iteration, in case */ \
3959 /* the next iteration does an Fsetcdr. */ \
3960 : (void) ((tortoise) = XCDR (tortoise)))))
3962 /* Do a `for' loop over alist values. */
3964 #define FOR_EACH_ALIST_VALUE(head_var, list_var, value_var) \
3965 for ((list_var) = (head_var); \
3966 (CONSP (list_var) && ((value_var) = XCDR (XCAR (list_var)), true)); \
3967 (list_var) = XCDR (list_var))
3969 /* Check whether it's time for GC, and run it if so. */
3977 extern Lisp_Object
Ffboundp (Lisp_Object
);
3980 functionp (Lisp_Object object
)
3982 if (SYMBOLP (object
) && !NILP (Ffboundp (object
)))
3984 object
= Findirect_function (object
, Qt
);
3986 if (CONSP (object
) && EQ (XCAR (object
), Qautoload
))
3988 /* Autoloaded symbols are functions, except if they load
3989 macros or keymaps. */
3991 for (i
= 0; i
< 4 && CONSP (object
); i
++)
3992 object
= XCDR (object
);
3994 return ! (CONSP (object
) && !NILP (XCAR (object
)));
3998 if (scm_is_true (scm_procedure_p (object
)))
4000 else if (COMPILEDP (object
))
4002 else if (CONSP (object
))
4004 Lisp_Object car
= XCAR (object
);
4005 return EQ (car
, Qlambda
) || EQ (car
, Qclosure
);
4011 extern Lisp_Object xsymbol_fn
;
4014 XSYMBOL (Lisp_Object a
)
4016 return scm_call_1 (xsymbol_fn
, a
);
4020 #endif /* EMACS_LISP_H */