/* Fundamental definitions for GNU Emacs Lisp interpreter.
Copyright (C) 1985, 1986, 1987, 1993, 1994, 1995, 1997, 1998, 1999, 2000,
- 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+ 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
This file is part of GNU Emacs.
You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING. If not, write to
-the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA. */
#ifndef EMACS_LISP_H
#define EMACS_LISP_H
/* If union type is not wanted, define Lisp_Object as just a number. */
#ifdef NO_UNION_TYPE
-#define Lisp_Object EMACS_INT
+typedef EMACS_INT Lisp_Object;
#define LISP_MAKE_RVALUE(o) (0+(o))
#endif /* NO_UNION_TYPE */
#endif
};
-/* For convenience, we also store the number of elements in these bits. */
+/* For convenience, we also store the number of elements in these bits.
+ Note that this size is not necessarily the memory-footprint size, but
+ only the number of Lisp_Object fields (that need to be traced by the GC).
+ The distinction is used e.g. by Lisp_Process which places extra
+ non-Lisp_Object fields at the end of the structure. */
#define PSEUDOVECTOR_SIZE_MASK 0x1ff
/* Number of bits to put in each character in the internal representation
extern Lisp_Object make_number P_ ((EMACS_INT));
#endif
-#define EQ(x, y) ((x).s.val == (y).s.val && (x).s.type == (y).s.type)
+#define EQ(x, y) ((x).i == (y).i)
#endif /* NO_UNION_TYPE */
in a Lisp object whose data type says it points to something. */
#define XPNTR(a) (XUINT (a) | DATA_SEG_BITS)
#else
-#define XPNTR(a) XUINT (a)
+/* Some versions of gcc seem to consider the bitfield width when
+ issuing the "cast to pointer from integer of different size"
+ warning, so the cast is here to widen the value back to its natural
+ size. */
+#define XPNTR(a) ((EMACS_INT) XUINT (a))
#endif
#endif /* not HAVE_SHM */
#endif /* no XPNTR */
/* Please do not use the names of these elements in code other
than the core lisp implementation. Use XCAR and XCDR below. */
#ifdef HIDE_LISP_IMPLEMENTATION
- Lisp_Object car_, cdr_;
+ Lisp_Object car_;
+ union
+ {
+ Lisp_Object cdr_;
+ struct Lisp_Cons *chain;
+ } u;
#else
- Lisp_Object car, cdr;
+ Lisp_Object car;
+ union
+ {
+ Lisp_Object cdr;
+ struct Lisp_Cons *chain;
+ } u;
#endif
};
invalidated at arbitrary points.) */
#ifdef HIDE_LISP_IMPLEMENTATION
#define XCAR_AS_LVALUE(c) (XCONS ((c))->car_)
-#define XCDR_AS_LVALUE(c) (XCONS ((c))->cdr_)
+#define XCDR_AS_LVALUE(c) (XCONS ((c))->u.cdr_)
#else
#define XCAR_AS_LVALUE(c) (XCONS ((c))->car)
-#define XCDR_AS_LVALUE(c) (XCONS ((c))->cdr)
+#define XCDR_AS_LVALUE(c) (XCONS ((c))->u.cdr)
#endif
/* Use these from normal code. */
unsigned char *data;
};
-/* If a struct is made to look like a vector, this macro returns the length
- of the shortest vector that would hold that struct. */
-#define VECSIZE(type) ((sizeof (type) - (sizeof (struct Lisp_Vector) \
- - sizeof (Lisp_Object)) \
- + sizeof(Lisp_Object) - 1) /* round up */ \
- / sizeof (Lisp_Object))
+#ifdef offsetof
+#define OFFSETOF(type,field) offsetof(type,field)
+#else
+#define OFFSETOF(type,field) \
+ ((int)((char*)&((type*)0)->field - (char*)0))
+#endif
struct Lisp_Vector
{
Lisp_Object contents[1];
};
+/* If a struct is made to look like a vector, this macro returns the length
+ of the shortest vector that would hold that struct. */
+#define VECSIZE(type) ((sizeof (type) - (sizeof (struct Lisp_Vector) \
+ - sizeof (Lisp_Object)) \
+ + sizeof(Lisp_Object) - 1) /* round up */ \
+ / sizeof (Lisp_Object))
+
+/* Like VECSIZE, but used when the pseudo-vector has non-Lisp_Object fields
+ at the end and we need to compute the number of Lisp_Object fields (the
+ ones that the GC needs to trace). */
+#define PSEUDOVECSIZE(type, nonlispfield) \
+ ((OFFSETOF(type, nonlispfield) - OFFSETOF(struct Lisp_Vector, contents[0])) \
+ / sizeof (Lisp_Object))
+
/* A char table is a kind of vectorlike, with contents are like a
vector but with a few other slots. For some purposes, it makes
sense to handle a chartable with type struct Lisp_Vector. An
/* Lisp floating point type */
struct Lisp_Float
{
+ union
+ {
#ifdef HIDE_LISP_IMPLEMENTATION
- double data_;
+ double data_;
#else
- double data;
+ double data;
#endif
+ struct Lisp_Float *chain;
+ } u;
};
#ifdef HIDE_LISP_IMPLEMENTATION
-#define XFLOAT_DATA(f) (XFLOAT (f)->data_)
+#define XFLOAT_DATA(f) (XFLOAT (f)->u.data_)
#else
-#define XFLOAT_DATA(f) (XFLOAT (f)->data)
+#define XFLOAT_DATA(f) (XFLOAT (f)->u.data)
#endif
/* A character, declared with the following typedef, is a member
struct specbinding
{
- volatile Lisp_Object symbol, old_value;
- volatile specbinding_func func;
+ Lisp_Object symbol, old_value;
+ specbinding_func func;
Lisp_Object unused; /* Dividing by 16 is faster than by 12 */
};
extern struct specbinding *specpdl;
-extern volatile struct specbinding *specpdl_ptr;
+extern struct specbinding *specpdl_ptr;
extern int specpdl_size;
extern EMACS_INT max_specpdl_size;
Lisp_Object flag = Vquit_flag; \
Vquit_flag = Qnil; \
if (EQ (Vthrow_on_input, flag)) \
- Fthrow (Vthrow_on_input, Qnil); \
+ Fthrow (Vthrow_on_input, Qt); \
Fsignal (Qquit, Qnil); \
} \
else if (interrupt_input_pending) \
Lisp_Object flag = Vquit_flag; \
Vquit_flag = Qnil; \
if (EQ (Vthrow_on_input, flag)) \
- Fthrow (Vthrow_on_input, Qnil); \
+ Fthrow (Vthrow_on_input, Qt); \
Fsignal (Qquit, Qnil); \
} \
} while (0)
extern int consing_since_gc;
-/* Threshold for doing another gc. */
+/* Thresholds for doing another gc. */
extern EMACS_INT gc_cons_threshold;
+extern EMACS_INT gc_relative_threshold;
+
+extern EMACS_INT memory_full_cons_threshold;
+
/* Structure for recording stack slots that need marking. */
/* This is a chain of structures, each of which points at a Lisp_Object variable
EXFUN (Fsymbol_plist, 1);
EXFUN (Fsymbol_name, 1);
extern Lisp_Object indirect_function P_ ((Lisp_Object));
-EXFUN (Findirect_function, 1);
+EXFUN (Findirect_function, 2);
EXFUN (Ffset, 2);
EXFUN (Fsetplist, 2);
EXFUN (Fsymbol_value, 1);
extern Lisp_Object indirect_variable P_ ((Lisp_Object));
extern Lisp_Object long_to_cons P_ ((unsigned long));
extern unsigned long cons_to_long P_ ((Lisp_Object));
-extern void args_out_of_range P_ ((Lisp_Object, Lisp_Object));
-extern void args_out_of_range_3 P_ ((Lisp_Object, Lisp_Object, Lisp_Object));
+extern void args_out_of_range P_ ((Lisp_Object, Lisp_Object)) NO_RETURN;
+extern void args_out_of_range_3 P_ ((Lisp_Object, Lisp_Object,
+ Lisp_Object)) NO_RETURN;
extern Lisp_Object wrong_type_argument P_ ((Lisp_Object, Lisp_Object));
extern void store_symval_forwarding P_ ((Lisp_Object, Lisp_Object,
Lisp_Object, struct buffer *));
extern void init_alloc P_ ((void));
extern void syms_of_alloc P_ ((void));
extern struct buffer * allocate_buffer P_ ((void));
+extern int valid_lisp_object_p P_ ((Lisp_Object));
/* Defined in print.c */
extern Lisp_Object Vprin1_to_string_buffer;
EXFUN (Fintern, 2);
EXFUN (Fintern_soft, 2);
EXFUN (Fload, 5);
+EXFUN (Fget_load_suffixes, 0);
EXFUN (Fget_file_char, 0);
EXFUN (Fread_char, 2);
EXFUN (Fread_event, 2);
#define LOADHIST_ATTACH(x) \
if (initialized) Vcurrent_load_list = Fcons (x, Vcurrent_load_list)
extern Lisp_Object Vcurrent_load_list;
-extern Lisp_Object Vload_history, Vload_suffixes;
+extern Lisp_Object Vload_history, Vload_suffixes, Vload_file_rep_suffixes;
extern int openp P_ ((Lisp_Object, Lisp_Object, Lisp_Object,
Lisp_Object *, Lisp_Object));
extern int isfloat_string P_ ((char *));
EXFUN (Fdo_auto_save, 2);
extern Lisp_Object apply_lambda P_ ((Lisp_Object, Lisp_Object, int));
extern Lisp_Object internal_catch P_ ((Lisp_Object, Lisp_Object (*) (Lisp_Object), Lisp_Object));
+extern Lisp_Object internal_lisp_condition_case P_ ((Lisp_Object, Lisp_Object, Lisp_Object));
extern Lisp_Object internal_condition_case P_ ((Lisp_Object (*) (void), Lisp_Object, Lisp_Object (*) (Lisp_Object)));
extern Lisp_Object internal_condition_case_1 P_ ((Lisp_Object (*) (Lisp_Object), Lisp_Object, Lisp_Object, Lisp_Object (*) (Lisp_Object)));
extern Lisp_Object internal_condition_case_2 P_ ((Lisp_Object (*) (int, Lisp_Object *), int, Lisp_Object *, Lisp_Object, Lisp_Object (*) (Lisp_Object)));
EXFUN (Fformat, MANY);
EXFUN (Fmessage, MANY);
extern Lisp_Object format2 P_ ((char *, Lisp_Object, Lisp_Object));
-extern Lisp_Object make_buffer_string P_ ((int, int, int));
EXFUN (Fbuffer_substring, 2);
EXFUN (Fbuffer_string, 0);
extern Lisp_Object save_excursion_save P_ ((void));
extern Lisp_Object make_buffer_string_both P_ ((int, int, int, int, int));
extern void init_editfns P_ ((void));
extern void syms_of_editfns P_ ((void));
-EXFUN (Fcurrent_message, 0);
extern Lisp_Object Vinhibit_field_text_motion;
EXFUN (Fconstrain_to_field, 5);
EXFUN (Ffield_string, 1);
EXFUN (Fbuffer_enable_undo, 1);
EXFUN (Ferase_buffer, 0);
extern Lisp_Object Qoverlayp;
+extern Lisp_Object Qevaporate;
extern Lisp_Object get_truename_buffer P_ ((Lisp_Object));
extern struct buffer *all_buffers;
EXFUN (Fprevious_overlay_change, 1);
EXFUN (Ffile_executable_p, 1);
EXFUN (Fread_file_name, 6);
extern Lisp_Object close_file_unwind P_ ((Lisp_Object));
-extern void report_file_error P_ ((const char *, Lisp_Object));
+extern void report_file_error P_ ((const char *, Lisp_Object)) NO_RETURN;
extern int internal_delete_file P_ ((Lisp_Object));
extern void syms_of_fileio P_ ((void));
-EXFUN (Fmake_temp_name, 1);
extern void init_fileio_once P_ ((void));
extern Lisp_Object make_temp_name P_ ((Lisp_Object, int));
EXFUN (Fmake_symbolic_link, 3);
/* defined in search.c */
extern void shrink_regexp_cache P_ ((void));
EXFUN (Fstring_match, 3);
-extern void restore_match_data P_ ((void));
-EXFUN (Fmatch_data, 2);
-EXFUN (Fset_match_data, 1);
+extern void restore_search_regs P_ ((void));
+EXFUN (Fmatch_data, 3);
+EXFUN (Fset_match_data, 2);
EXFUN (Fmatch_beginning, 1);
EXFUN (Fmatch_end, 1);
+extern void record_unwind_save_match_data P_ ((void));
EXFUN (Flooking_at, 1);
extern int fast_string_match P_ ((Lisp_Object, Lisp_Object));
extern int fast_c_string_match_ignore_case P_ ((Lisp_Object, const char *));
extern Lisp_Object get_frame_param P_ ((struct frame *, Lisp_Object));
extern Lisp_Object frame_buffer_predicate P_ ((Lisp_Object));
EXFUN (Fframep, 1);
-EXFUN (Fselect_frame, 2);
+EXFUN (Fselect_frame, 1);
EXFUN (Fselected_frame, 0);
EXFUN (Fwindow_frame, 1);
EXFUN (Fframe_root_window, 1);
Lisp_Object,
struct Lisp_Process *,
int));
-extern void deactivate_process P_ ((Lisp_Object));
extern void add_keyboard_wait_descriptor P_ ((int));
extern void delete_keyboard_wait_descriptor P_ ((int));
extern void close_process_descs P_ ((void));
-extern void status_notify P_ ((void));
-extern int read_process_output P_ ((Lisp_Object, int));
extern void init_process P_ ((void));
extern void syms_of_process P_ ((void));
extern void setup_process_coding_systems P_ ((Lisp_Object));
/* defined in xmenu.c */
EXFUN (Fx_popup_menu, 2);
-EXFUN (Fx_popup_dialog, 2);
+EXFUN (Fx_popup_dialog, 3);
extern void syms_of_xmenu P_ ((void));
/* defined in sysdep.c */
+#ifndef HAVE_GET_CURRENT_DIR_NAME
+extern char *get_current_dir_name P_ ((void));
+#endif
extern void stuff_char P_ ((char c));
extern void init_sigio P_ ((int));
extern void request_sigio P_ ((void));
extern void sys_suspend P_ ((void));
extern void discard_tty_input P_ ((void));
extern void init_sys_modes P_ ((void));
-extern void reset_sys_modes P_ ((void));
extern void get_frame_size P_ ((int *, int *));
extern void wait_for_termination P_ ((int));
extern void flush_pending_output P_ ((int));
/* Defined in xfaces.c */
extern void syms_of_xfaces P_ ((void));
+#ifndef HAVE_GETLOADAVG
/* Defined in getloadavg.c */
extern int getloadavg P_ ((double *, int));
+#endif
#ifdef HAVE_X_WINDOWS
/* Defined in xfns.c */
/* Defined in xterm.c */
extern void syms_of_xterm P_ ((void));
-/* Defined in getloadavg.c */
-extern int getloadavg P_ ((double [], int));
-
#ifdef MSDOS
/* Defined in msdos.c */
EXFUN (Fmsdos_downcase_filename, 1);
HCoop / bpt / emacs.git / blobdiff