/* "intern" and friends -- moved here from lread.c and data.c
Copyright (C) 1985-1989, 1992-1994 Free Software Foundation, Inc.
- Copyright (C) 1995 Ben Wing.
+ Copyright (C) 1995, 2000 Ben Wing.
This file is part of XEmacs.
Lisp_Object Qget_value, Qset_value, Qbound_predicate, Qmake_unbound;
Lisp_Object Qlocal_predicate, Qmake_local;
-Lisp_Object Qboundp, Qfboundp, Qglobally_boundp, Qmakunbound;
+Lisp_Object Qboundp, Qglobally_boundp, Qmakunbound;
Lisp_Object Qsymbol_value, Qset, Qdefault_boundp, Qdefault_value;
Lisp_Object Qset_default, Qsetq_default;
Lisp_Object Qmake_variable_buffer_local, Qmake_local_variable;
\f
static Lisp_Object
-mark_symbol (Lisp_Object obj, void (*markobj) (Lisp_Object))
+mark_symbol (Lisp_Object obj)
{
- struct Lisp_Symbol *sym = XSYMBOL (obj);
+ Lisp_Symbol *sym = XSYMBOL (obj);
Lisp_Object pname;
- markobj (sym->value);
- markobj (sym->function);
+ mark_object (sym->value);
+ mark_object (sym->function);
XSETSTRING (pname, sym->name);
- markobj (pname);
+ mark_object (pname);
if (!symbol_next (sym))
return sym->plist;
else
{
- markobj (sym->plist);
+ mark_object (sym->plist);
/* Mark the rest of the symbols in the obarray hash-chain */
sym = symbol_next (sym);
XSETSYMBOL (obj, sym);
}
static const struct lrecord_description symbol_description[] = {
- { XD_LISP_OBJECT, offsetof(struct Lisp_Symbol, next), 5 }
+ { XD_LISP_OBJECT, offsetof (Lisp_Symbol, next) },
+ { XD_LISP_OBJECT, offsetof (Lisp_Symbol, name) },
+ { XD_LISP_OBJECT, offsetof (Lisp_Symbol, value) },
+ { XD_LISP_OBJECT, offsetof (Lisp_Symbol, function) },
+ { XD_LISP_OBJECT, offsetof (Lisp_Symbol, plist) },
+ { XD_END }
};
-DEFINE_BASIC_LRECORD_IMPLEMENTATION ("symbol", symbol,
- mark_symbol, print_symbol, 0, 0, 0,
- symbol_description, struct Lisp_Symbol);
+/* Symbol plists are directly accessible, so we need to protect against
+ invalid property list structure */
+
+static Lisp_Object
+symbol_getprop (Lisp_Object symbol, Lisp_Object property)
+{
+ return external_plist_get (&XSYMBOL (symbol)->plist, property, 0, ERROR_ME);
+}
+
+static int
+symbol_putprop (Lisp_Object symbol, Lisp_Object property, Lisp_Object value)
+{
+ external_plist_put (&XSYMBOL (symbol)->plist, property, value, 0, ERROR_ME);
+ return 1;
+}
+
+static int
+symbol_remprop (Lisp_Object symbol, Lisp_Object property)
+{
+ return external_remprop (&XSYMBOL (symbol)->plist, property, 0, ERROR_ME);
+}
+
+DEFINE_BASIC_LRECORD_IMPLEMENTATION_WITH_PROPS ("symbol", symbol,
+ mark_symbol, print_symbol,
+ 0, 0, 0, symbol_description,
+ symbol_getprop,
+ symbol_putprop,
+ symbol_remprop,
+ Fsymbol_plist,
+ Lisp_Symbol);
\f
/**********************************************************************/
}
Lisp_Object
-intern (CONST char *str)
+intern (const char *str)
{
Bytecount len = strlen (str);
- CONST Bufbyte *buf = (CONST Bufbyte *) str;
+ const Bufbyte *buf = (const Bufbyte *) str;
Lisp_Object obarray = Vobarray;
if (!VECTORP (obarray) || XVECTOR_LENGTH (obarray) == 0)
DEFUN ("intern", Fintern, 1, 2, 0, /*
Return the canonical symbol whose name is STRING.
If there is none, one is created by this function and returned.
-A second optional argument specifies the obarray to use;
-it defaults to the value of `obarray'.
+Optional second argument OBARRAY specifies the obarray to use;
+it defaults to the value of the variable `obarray'.
*/
(string, obarray))
{
Lisp_Object object, *ptr;
- struct Lisp_Symbol *symbol;
+ Lisp_Symbol *symbol;
Bytecount len;
if (NILP (obarray)) obarray = Vobarray;
Return the canonical symbol named NAME, or nil if none exists.
NAME may be a string or a symbol. If it is a symbol, that exact
symbol is searched for.
-A second optional argument specifies the obarray to use;
-it defaults to the value of `obarray'.
+Optional second argument OBARRAY specifies the obarray to use;
+it defaults to the value of the variable `obarray'.
*/
(name, obarray))
{
/* #### Bug! (intern-soft "nil") returns nil. Perhaps we should
add a DEFAULT-IF-NOT-FOUND arg, like in get. */
Lisp_Object tem;
- struct Lisp_String *string;
+ Lisp_String *string;
if (NILP (obarray)) obarray = Vobarray;
obarray = check_obarray (obarray);
The value is t if a symbol was found and deleted, nil otherwise.
NAME may be a string or a symbol. If it is a symbol, that symbol
is deleted, if it belongs to OBARRAY--no other symbol is deleted.
-OBARRAY defaults to the value of the variable `obarray'
+OBARRAY defaults to the value of the variable `obarray'.
*/
(name, obarray))
{
Lisp_Object tem;
- struct Lisp_String *string;
+ Lisp_String *string;
int hash;
if (NILP (obarray)) obarray = Vobarray;
Also store the bucket number in oblookup_last_bucket_number. */
Lisp_Object
-oblookup (Lisp_Object obarray, CONST Bufbyte *ptr, Bytecount size)
+oblookup (Lisp_Object obarray, const Bufbyte *ptr, Bytecount size)
{
int hash, obsize;
- struct Lisp_Symbol *tail;
+ Lisp_Symbol *tail;
Lisp_Object bucket;
if (!VECTORP (obarray) ||
#if 0 /* Emacs 19.34 */
int
-hash_string (CONST Bufbyte *ptr, Bytecount len)
+hash_string (const Bufbyte *ptr, Bytecount len)
{
- CONST Bufbyte *p = ptr;
- CONST Bufbyte *end = p + len;
+ const Bufbyte *p = ptr;
+ const Bufbyte *end = p + len;
Bufbyte c;
int hash = 0;
/* derived from hashpjw, Dragon Book P436. */
int
-hash_string (CONST Bufbyte *ptr, Bytecount len)
+hash_string (const Bufbyte *ptr, Bytecount len)
{
int hash = 0;
if (SYMBOLP (tail))
while (1)
{
- struct Lisp_Symbol *next;
+ Lisp_Symbol *next;
if ((*fn) (tail, arg))
return;
next = symbol_next (XSYMBOL (tail));
*/
(function, obarray))
{
+ struct gcpro gcpro1;
+
if (NILP (obarray))
obarray = Vobarray;
obarray = check_obarray (obarray);
+ GCPRO1 (obarray);
map_obarray (obarray, mapatoms_1, &function);
+ UNGCPRO;
return Qnil;
}
}
DEFUN ("apropos-internal", Fapropos_internal, 1, 2, 0, /*
-Show all symbols whose names contain match for REGEXP.
-If optional 2nd arg PREDICATE is non-nil, (funcall PREDICATE SYMBOL)
- is done for each symbol and a symbol is mentioned only if that
- returns non-nil.
-Return list of symbols found.
+Return a list of all symbols whose names contain match for REGEXP.
+If optional 2nd arg PREDICATE is non-nil, only symbols for which
+\(funcall PREDICATE SYMBOL) returns non-nil are returned.
*/
(regexp, predicate))
{
struct appropos_mapper_closure closure;
+ struct gcpro gcpro1;
CHECK_STRING (regexp);
closure.regexp = regexp;
closure.predicate = predicate;
closure.accumulation = Qnil;
+ GCPRO1 (closure.accumulation);
map_obarray (Vobarray, apropos_mapper, &closure);
closure.accumulation = Fsort (closure.accumulation, Qstring_lessp);
+ UNGCPRO;
return closure.accumulation;
}
the symbol-value-forward. (See below.)
SYMVAL_FIXNUM_FORWARD:
+ (declare with DEFVAR_INT)
+ Similar to SYMVAL_OBJECT_FORWARD except that the C variable
+ is of type "Fixnum", a typedef for "EMACS_INT", and the corresponding
+ lisp variable is always the corresponding integer.
+
SYMVAL_BOOLEAN_FORWARD:
- (declare with DEFVAR_INT or DEFVAR_BOOL)
+ (declare with DEFVAR_BOOL)
Similar to SYMVAL_OBJECT_FORWARD except that the C variable
- is of type "int" and is an integer or boolean, respectively.
+ is of type "int" and is a boolean.
SYMVAL_CONST_OBJECT_FORWARD:
SYMVAL_CONST_FIXNUM_FORWARD:
SYMVAL_CONST_SPECIFIER_FORWARD:
(declare with DEFVAR_SPECIFIER)
- Exactly like SYMVAL_CONST_OBJECT_FORWARD except that error message
- you get when attempting to set the value says to use
+ Exactly like SYMVAL_CONST_OBJECT_FORWARD except that the error
+ message you get when attempting to set the value says to use
`set-specifier' instead.
SYMVAL_CURRENT_BUFFER_FORWARD:
symbol to operate on. */
static Lisp_Object
-mark_symbol_value_buffer_local (Lisp_Object obj,
- void (*markobj) (Lisp_Object))
+mark_symbol_value_buffer_local (Lisp_Object obj)
{
struct symbol_value_buffer_local *bfwd;
#endif
bfwd = XSYMBOL_VALUE_BUFFER_LOCAL (obj);
- markobj (bfwd->default_value);
- markobj (bfwd->current_value);
- markobj (bfwd->current_buffer);
+ mark_object (bfwd->default_value);
+ mark_object (bfwd->current_value);
+ mark_object (bfwd->current_buffer);
return bfwd->current_alist_element;
}
static Lisp_Object
-mark_symbol_value_lisp_magic (Lisp_Object obj,
- void (*markobj) (Lisp_Object))
+mark_symbol_value_lisp_magic (Lisp_Object obj)
{
struct symbol_value_lisp_magic *bfwd;
int i;
bfwd = XSYMBOL_VALUE_LISP_MAGIC (obj);
for (i = 0; i < MAGIC_HANDLER_MAX; i++)
{
- markobj (bfwd->handler[i]);
- markobj (bfwd->harg[i]);
+ mark_object (bfwd->handler[i]);
+ mark_object (bfwd->harg[i]);
}
return bfwd->shadowed;
}
static Lisp_Object
-mark_symbol_value_varalias (Lisp_Object obj,
- void (*markobj) (Lisp_Object))
+mark_symbol_value_varalias (Lisp_Object obj)
{
struct symbol_value_varalias *bfwd;
assert (XSYMBOL_VALUE_MAGIC_TYPE (obj) == SYMVAL_VARALIAS);
bfwd = XSYMBOL_VALUE_VARALIAS (obj);
- markobj (bfwd->shadowed);
+ mark_object (bfwd->shadowed);
return bfwd->aliasee;
}
write_c_string (buf, printcharfun);
}
+static const struct lrecord_description symbol_value_forward_description[] = {
+ { XD_END }
+};
+
static const struct lrecord_description symbol_value_buffer_local_description[] = {
- { XD_LISP_OBJECT, offsetof(struct symbol_value_buffer_local, default_value), 4 },
+ { XD_LISP_OBJECT, offsetof (struct symbol_value_buffer_local, default_value) },
+ { XD_LISP_OBJECT, offsetof (struct symbol_value_buffer_local, current_value) },
+ { XD_LISP_OBJECT, offsetof (struct symbol_value_buffer_local, current_buffer) },
+ { XD_LISP_OBJECT, offsetof (struct symbol_value_buffer_local, current_alist_element) },
{ XD_END }
};
static const struct lrecord_description symbol_value_lisp_magic_description[] = {
- { XD_LISP_OBJECT, offsetof(struct symbol_value_lisp_magic, handler), 2*MAGIC_HANDLER_MAX+1 },
+ { XD_LISP_OBJECT_ARRAY, offsetof (struct symbol_value_lisp_magic, handler), 2*MAGIC_HANDLER_MAX+1 },
{ XD_END }
};
static const struct lrecord_description symbol_value_varalias_description[] = {
- { XD_LISP_OBJECT, offsetof(struct symbol_value_varalias, aliasee), 2 },
+ { XD_LISP_OBJECT, offsetof (struct symbol_value_varalias, aliasee) },
+ { XD_LISP_OBJECT, offsetof (struct symbol_value_varalias, shadowed) },
{ XD_END }
};
DEFINE_LRECORD_IMPLEMENTATION ("symbol-value-forward",
symbol_value_forward,
- this_one_is_unmarkable,
- print_symbol_value_magic, 0, 0, 0, 0,
+ 0,
+ print_symbol_value_magic, 0, 0, 0,
+ symbol_value_forward_description,
struct symbol_value_forward);
DEFINE_LRECORD_IMPLEMENTATION ("symbol-value-buffer-local",
do_symval_forwarding (Lisp_Object valcontents, struct buffer *buffer,
struct console *console)
{
- CONST struct symbol_value_forward *fwd;
+ const struct symbol_value_forward *fwd;
if (!SYMBOL_VALUE_MAGIC_P (valcontents))
return valcontents;
{
case SYMVAL_FIXNUM_FORWARD:
case SYMVAL_CONST_FIXNUM_FORWARD:
- return make_int (*((int *)symbol_value_forward_forward (fwd)));
+ return make_int (*((Fixnum *)symbol_value_forward_forward (fwd)));
case SYMVAL_BOOLEAN_FORWARD:
case SYMVAL_CONST_BOOLEAN_FORWARD:
or symbol-value-buffer-local, and if there's a handler, we should
have already called it. */
Lisp_Object valcontents = fetch_value_maybe_past_magic (sym, Qt);
- CONST struct symbol_value_forward *fwd
+ const struct symbol_value_forward *fwd
= XSYMBOL_VALUE_FORWARD (valcontents);
int offset = ((char *) symbol_value_forward_forward (fwd)
- (char *) &buffer_local_flags);
if (mask > 0) /* Not always per-buffer */
{
- Lisp_Object elt;
-
/* Set value in each buffer which hasn't shadowed the default */
LIST_LOOP_2 (elt, Vbuffer_alist)
{
or symbol-value-buffer-local, and if there's a handler, we should
have already called it. */
Lisp_Object valcontents = fetch_value_maybe_past_magic (sym, Qt);
- CONST struct symbol_value_forward *fwd
+ const struct symbol_value_forward *fwd
= XSYMBOL_VALUE_FORWARD (valcontents);
int offset = ((char *) symbol_value_forward_forward (fwd)
- (char *) &console_local_flags);
if (mask > 0) /* Not always per-console */
{
- Lisp_Object console;
-
/* Set value in each console which hasn't shadowed the default */
LIST_LOOP_2 (console, Vconsole_list)
{
}
else
{
- CONST struct symbol_value_forward *fwd = XSYMBOL_VALUE_FORWARD (ovalue);
+ const struct symbol_value_forward *fwd = XSYMBOL_VALUE_FORWARD (ovalue);
int (*magicfun) (Lisp_Object simm, Lisp_Object *val,
Lisp_Object in_object, int flags)
= symbol_value_forward_magicfun (fwd);
CHECK_INT (newval);
if (magicfun)
magicfun (sym, &newval, Qnil, 0);
- *((int *) symbol_value_forward_forward (fwd)) = XINT (newval);
+ *((Fixnum *) symbol_value_forward_forward (fwd)) = XINT (newval);
return;
case SYMVAL_BOOLEAN_FORWARD:
if (magicfun)
magicfun (sym, &newval, Qnil, 0);
*((int *) symbol_value_forward_forward (fwd))
- = ((NILP (newval)) ? 0 : 1);
+ = !NILP (newval);
return;
case SYMVAL_OBJECT_FORWARD:
store_symval_forwarding (sym, bfwd->current_value, new_val);
}
+
+/* SYM is a buffer-local variable, and BFWD is its buffer-local structure.
+ Flush the cache. BFWD->CURRENT_BUFFER will be nil after this operation.
+*/
+
+static void
+flush_buffer_local_cache (Lisp_Object sym,
+ struct symbol_value_buffer_local *bfwd)
+{
+ if (NILP (bfwd->current_buffer))
+ /* Cache is already flushed. */
+ return;
+
+ /* Flush out the old cache. */
+ write_out_buffer_local_cache (sym, bfwd);
+
+ bfwd->current_alist_element = Qnil;
+ bfwd->current_buffer = Qnil;
+
+ /* Now store default the value into the current-value slot.
+ We don't simply write it there, because the current-value
+ slot might be a forwarding pointer, in which case we need
+ to instead write the value into the C variable.
+
+ We might also want to call a magic function.
+
+ So instead, we call this function. */
+ store_symval_forwarding (sym, bfwd->current_value, bfwd->default_value);
+}
+
+/* Flush all the buffer-local variable caches. Whoever has a
+ non-interned buffer-local variable will be spanked. Whoever has a
+ magic variable that interns or uninterns symbols... I don't even
+ want to think about it.
+*/
+
+void
+flush_all_buffer_local_cache (void)
+{
+ Lisp_Object *syms = XVECTOR_DATA (Vobarray);
+ long count = XVECTOR_LENGTH (Vobarray);
+ long i;
+
+ for (i=0; i<count; i++)
+ {
+ Lisp_Object sym = syms[i];
+ Lisp_Object value;
+
+ if (!ZEROP (sym))
+ for(;;)
+ {
+ Lisp_Symbol *next;
+ assert (SYMBOLP (sym));
+ value = fetch_value_maybe_past_magic (sym, Qt);
+ if (SYMBOL_VALUE_BUFFER_LOCAL_P (value))
+ flush_buffer_local_cache (sym, XSYMBOL_VALUE_BUFFER_LOCAL (value));
+
+ next = symbol_next (XSYMBOL (sym));
+ if (!next)
+ break;
+ XSETSYMBOL (sym, next);
+ }
+ }
+}
+
\f
void
kill_buffer_local_variables (struct buffer *buf)
/* This can also get called while we're preparing to shutdown.
#### What should really happen in that case? Should we
actually fix things so we can't get here in that case? */
+#ifndef PDUMP
assert (!initialized || preparing_for_armageddon);
+#endif
con = 0;
}
/* This can also get called while we're preparing to shutdown.
#### What should really happen in that case? Should we
actually fix things so we can't get here in that case? */
+#ifndef PDUMP
assert (!initialized || preparing_for_armageddon);
+#endif
con = 0;
}
(symbol, newval))
{
REGISTER Lisp_Object valcontents;
- struct Lisp_Symbol *sym;
+ Lisp_Symbol *sym;
/* remember, we're called by Fmakunbound() as well */
CHECK_SYMBOL (symbol);
reject_constant_symbols (symbol, newval, 0,
UNBOUNDP (newval) ? Qmakunbound : Qset);
- retry_2:
-
switch (XSYMBOL_VALUE_MAGIC_TYPE (valcontents))
{
case SYMVAL_LISP_MAGIC:
{
- Lisp_Object retval;
-
if (UNBOUNDP (newval))
- retval = maybe_call_magic_handler (symbol, Qmakunbound, 0);
+ {
+ maybe_call_magic_handler (symbol, Qmakunbound, 0);
+ return XSYMBOL_VALUE_LISP_MAGIC (valcontents)->shadowed = Qunbound;
+ }
else
- retval = maybe_call_magic_handler (symbol, Qset, 1, newval);
- if (!UNBOUNDP (retval))
- return newval;
- valcontents = XSYMBOL_VALUE_LISP_MAGIC (valcontents)->shadowed;
- /* semi-change-o */
- goto retry_2;
+ {
+ maybe_call_magic_handler (symbol, Qset, 1, newval);
+ return XSYMBOL_VALUE_LISP_MAGIC (valcontents)->shadowed = newval;
+ }
}
case SYMVAL_VARALIAS:
case SYMVAL_CURRENT_BUFFER_FORWARD:
{
- CONST struct symbol_value_forward *fwd
+ const struct symbol_value_forward *fwd
= XSYMBOL_VALUE_FORWARD (valcontents);
int mask = XINT (*((Lisp_Object *)
symbol_value_forward_forward (fwd)));
case SYMVAL_SELECTED_CONSOLE_FORWARD:
{
- CONST struct symbol_value_forward *fwd
+ const struct symbol_value_forward *fwd
= XSYMBOL_VALUE_FORWARD (valcontents);
int mask = XINT (*((Lisp_Object *)
symbol_value_forward_forward (fwd)));
case SYMVAL_CURRENT_BUFFER_FORWARD:
{
- CONST struct symbol_value_forward *fwd
+ const struct symbol_value_forward *fwd
= XSYMBOL_VALUE_FORWARD (valcontents);
return (*((Lisp_Object *)((char *) XBUFFER (Vbuffer_defaults)
+ ((char *)symbol_value_forward_forward (fwd)
case SYMVAL_SELECTED_CONSOLE_FORWARD:
{
- CONST struct symbol_value_forward *fwd
+ const struct symbol_value_forward *fwd
= XSYMBOL_VALUE_FORWARD (valcontents);
return (*((Lisp_Object *)((char *) XCONSOLE (Vconsole_defaults)
+ ((char *)symbol_value_forward_forward (fwd)
}
DEFUN ("set-default", Fset_default, 2, 2, 0, /*
-Set SYMBOL's default value to VAL. SYMBOL and VAL are evaluated.
+Set SYMBOL's default value to VALUE. SYMBOL and VALUE are evaluated.
The default value is seen in buffers that do not have their own values
for this variable.
*/
= alloc_lcrecord_type (struct symbol_value_buffer_local,
&lrecord_symbol_value_buffer_local);
Lisp_Object foo;
+ zero_lcrecord (&bfwd->magic);
bfwd->magic.type = SYMVAL_BUFFER_LOCAL;
bfwd->default_value = find_symbol_value (variable);
/* Make sure variable is set up to hold per-buffer values */
bfwd = alloc_lcrecord_type (struct symbol_value_buffer_local,
&lrecord_symbol_value_buffer_local);
+ zero_lcrecord (&bfwd->magic);
bfwd->magic.type = SYMVAL_SOME_BUFFER_LOCAL;
bfwd->current_buffer = Qnil;
case SYMVAL_CURRENT_BUFFER_FORWARD:
{
- CONST struct symbol_value_forward *fwd
+ const struct symbol_value_forward *fwd
= XSYMBOL_VALUE_FORWARD (valcontents);
int offset = ((char *) symbol_value_forward_forward (fwd)
- (char *) &buffer_local_flags);
case SYMVAL_SELECTED_CONSOLE_FORWARD:
{
- CONST struct symbol_value_forward *fwd
+ const struct symbol_value_forward *fwd
= XSYMBOL_VALUE_FORWARD (valcontents);
int offset = ((char *) symbol_value_forward_forward (fwd)
- (char *) &console_local_flags);
case SYMVAL_CURRENT_BUFFER_FORWARD:
{
- CONST struct symbol_value_forward *fwd
+ const struct symbol_value_forward *fwd
= XSYMBOL_VALUE_FORWARD (valcontents);
int mask = XINT (*((Lisp_Object *)
symbol_value_forward_forward (fwd)));
DEFUN ("local-variable-p", Flocal_variable_p, 2, 3, 0, /*
Return t if SYMBOL's value is local to BUFFER.
-If optional third arg AFTER-SET is true, return t if SYMBOL would be
+If optional third arg AFTER-SET is non-nil, return t if SYMBOL would be
buffer-local after it is set, regardless of whether it is so presently.
A nil value for BUFFER is *not* the same as (current-buffer), but means
"no buffer". Specifically:
Lisp_Object legerdemain;
struct symbol_value_lisp_magic *bfwd;
- assert (nargs >= 0 && nargs < 20);
+ assert (nargs >= 0 && nargs < countof (args));
legerdemain = XSYMBOL (sym)->value;
assert (SYMBOL_VALUE_LISP_MAGIC_P (legerdemain));
bfwd = XSYMBOL_VALUE_LISP_MAGIC (legerdemain);
{
bfwd = alloc_lcrecord_type (struct symbol_value_lisp_magic,
&lrecord_symbol_value_lisp_magic);
+ zero_lcrecord (&bfwd->magic);
bfwd->magic.type = SYMVAL_LISP_MAGIC;
for (i = 0; i < MAGIC_HANDLER_MAX; i++)
{
bfwd = alloc_lcrecord_type (struct symbol_value_varalias,
&lrecord_symbol_value_varalias);
+ zero_lcrecord (&bfwd->magic);
bfwd->magic.type = SYMVAL_VARALIAS;
bfwd->aliasee = alias;
bfwd->shadowed = valcontents;
return follow_varalias_pointers (object, follow_past_lisp_magic);
}
+DEFUN ("variable-binding-locus", Fvariable_binding_locus, 1, 1, 0, /*
+Return a value indicating where VARIABLE's current binding comes from.
+If the current binding is buffer-local, the value is the current buffer.
+If the current binding is global (the default), the value is nil.
+*/
+ (variable))
+{
+ Lisp_Object valcontents;
+
+ CHECK_SYMBOL (variable);
+ variable = Findirect_variable (variable, Qnil);
+
+ /* Make sure the current binding is actually swapped in. */
+ find_symbol_value (variable);
+
+ valcontents = XSYMBOL (variable)->value;
+
+ if (SYMBOL_VALUE_MAGIC_P (valcontents)
+ && ((XSYMBOL_VALUE_MAGIC_TYPE (valcontents) == SYMVAL_BUFFER_LOCAL)
+ || (XSYMBOL_VALUE_MAGIC_TYPE (valcontents) == SYMVAL_SOME_BUFFER_LOCAL))
+ && (!NILP (Flocal_variable_p (variable, Fcurrent_buffer (), Qnil))))
+ return Fcurrent_buffer ();
+ else
+ return Qnil;
+}
\f
/************************************************************************/
/* initialization */
#endif
/* some losing systems can't have static vars at function scope... */
-static struct symbol_value_magic guts_of_unbound_marker =
- { { symbol_value_forward_lheader_initializer, 0, 69},
- SYMVAL_UNBOUND_MARKER };
+static const struct symbol_value_magic guts_of_unbound_marker =
+{ /* struct symbol_value_magic */
+ { /* struct lcrecord_header */
+ { /* struct lrecord_header */
+ lrecord_type_symbol_value_forward, /* lrecord_type_index */
+ 1, /* mark bit */
+ 1, /* c_readonly bit */
+ 1, /* lisp_readonly bit */
+ },
+ 0, /* next */
+ 0, /* uid */
+ 0, /* free */
+ },
+ 0, /* value */
+ SYMVAL_UNBOUND_MARKER
+};
void
init_symbols_once_early (void)
{
-#ifndef Qzero
- Qzero = make_int (0); /* Only used if Lisp_Object is a union type */
-#endif
+ INIT_LRECORD_IMPLEMENTATION (symbol);
+ INIT_LRECORD_IMPLEMENTATION (symbol_value_forward);
+ INIT_LRECORD_IMPLEMENTATION (symbol_value_buffer_local);
+ INIT_LRECORD_IMPLEMENTATION (symbol_value_lisp_magic);
+ INIT_LRECORD_IMPLEMENTATION (symbol_value_varalias);
-#ifndef Qnull_pointer
- /* C guarantees that Qnull_pointer will be initialized to all 0 bits,
- so the following is actually a no-op. */
- XSETOBJ (Qnull_pointer, (enum Lisp_Type) 0, 0);
-#endif
+ reinit_symbols_once_early ();
/* Bootstrapping problem: Qnil isn't set when make_string_nocopy is
called the first time. */
- Qnil = Fmake_symbol (make_string_nocopy ((CONST Bufbyte *) "nil", 3));
+ Qnil = Fmake_symbol (make_string_nocopy ((const Bufbyte *) "nil", 3));
XSYMBOL (Qnil)->name->plist = Qnil;
XSYMBOL (Qnil)->value = Qnil; /* Nihil ex nihil */
XSYMBOL (Qnil)->plist = Qnil;
{
/* Required to get around a GCC syntax error on certain
architectures */
- struct symbol_value_magic *tem = &guts_of_unbound_marker;
+ const struct symbol_value_magic *tem = &guts_of_unbound_marker;
XSETSYMBOL_VALUE_MAGIC (Qunbound, tem);
}
- if ((CONST void *) XPNTR (Qunbound) !=
- (CONST void *)&guts_of_unbound_marker)
- {
- /* This might happen on DATA_SEG_BITS machines. */
- /* abort (); */
- /* Can't represent a pointer to constant C data using a Lisp_Object.
- So heap-allocate it. */
- struct symbol_value_magic *urk = xnew (struct symbol_value_magic);
- memcpy (urk, &guts_of_unbound_marker, sizeof (*urk));
- XSETSYMBOL_VALUE_MAGIC (Qunbound, urk);
- }
XSYMBOL (Qnil)->function = Qunbound;
defsymbol (&Qt, "t");
- XSYMBOL (Qt)->value = Qt; /* Veritas aetera */
+ XSYMBOL (Qt)->value = Qt; /* Veritas aeterna */
Vquit_flag = Qnil;
+
+ dump_add_root_object (&Qnil);
+ dump_add_root_object (&Qunbound);
+ dump_add_root_object (&Vquit_flag);
}
void
-defsymbol (Lisp_Object *location, CONST char *name)
+reinit_symbols_once_early (void)
{
- *location = Fintern (make_string_nocopy ((CONST Bufbyte *) name,
+#ifndef Qzero
+ Qzero = make_int (0); /* Only used if Lisp_Object is a union type */
+#endif
+
+#ifndef Qnull_pointer
+ /* C guarantees that Qnull_pointer will be initialized to all 0 bits,
+ so the following is actually a no-op. */
+ XSETOBJ (Qnull_pointer, 0);
+#endif
+}
+
+static void
+defsymbol_massage_name_1 (Lisp_Object *location, const char *name, int dump_p,
+ int multiword_predicate_p)
+{
+ char temp[500];
+ size_t len = strlen (name) - 1;
+ size_t i;
+
+ if (multiword_predicate_p)
+ assert (len + 1 < sizeof (temp));
+ else
+ assert (len < sizeof (temp));
+ strcpy (temp, name + 1); /* Remove initial Q */
+ if (multiword_predicate_p)
+ {
+ strcpy (temp + len - 1, "_p");
+ len++;
+ }
+ for (i = 0; i < len; i++)
+ if (temp[i] == '_')
+ temp[i] = '-';
+ *location = Fintern (make_string ((const Bufbyte *) temp, len), Qnil);
+ if (dump_p)
+ staticpro (location);
+ else
+ staticpro_nodump (location);
+}
+
+void
+defsymbol_massage_name_nodump (Lisp_Object *location, const char *name)
+{
+ defsymbol_massage_name_1 (location, name, 0, 0);
+}
+
+void
+defsymbol_massage_name (Lisp_Object *location, const char *name)
+{
+ defsymbol_massage_name_1 (location, name, 1, 0);
+}
+
+void
+defsymbol_massage_multiword_predicate_nodump (Lisp_Object *location,
+ const char *name)
+{
+ defsymbol_massage_name_1 (location, name, 0, 1);
+}
+
+void
+defsymbol_massage_multiword_predicate (Lisp_Object *location, const char *name)
+{
+ defsymbol_massage_name_1 (location, name, 1, 1);
+}
+
+void
+defsymbol_nodump (Lisp_Object *location, const char *name)
+{
+ *location = Fintern (make_string_nocopy ((const Bufbyte *) name,
+ strlen (name)),
+ Qnil);
+ staticpro_nodump (location);
+}
+
+void
+defsymbol (Lisp_Object *location, const char *name)
+{
+ *location = Fintern (make_string_nocopy ((const Bufbyte *) name,
strlen (name)),
Qnil);
staticpro (location);
}
void
-defkeyword (Lisp_Object *location, CONST char *name)
+defkeyword (Lisp_Object *location, const char *name)
{
defsymbol (location, name);
Fset (*location, *location);
}
+void
+defkeyword_massage_name (Lisp_Object *location, const char *name)
+{
+ char temp[500];
+ size_t len = strlen (name);
+
+ assert (len < sizeof (temp));
+ strcpy (temp, name);
+ temp[1] = ':'; /* it's an underscore in the C variable */
+
+ defsymbol_massage_name (location, temp);
+ Fset (*location, *location);
+}
+
#ifdef DEBUG_XEMACS
/* Check that nobody spazzed writing a DEFUN. */
static void
* Once we have copied everything across, we re-use the original static
* structure to store a pointer to the newly allocated one. This will be
* used in emodules.c by emodules_doc_subr() to find a pointer to the
- * allocated object so that we can set its doc string propperly.
+ * allocated object so that we can set its doc string properly.
*
- * NOTE: We dont actually use the DOC pointer here any more, but we did
+ * NOTE: We don't actually use the DOC pointer here any more, but we did
* in an earlier implementation of module support. There is no harm in
* setting it here in case we ever need it in future implementations.
* subr->doc will point to the new subr structure that was allocated.
- * Code can then get this value from the statis subr structure and use
+ * Code can then get this value from the static subr structure and use
* it if required.
*
- * FIXME: Should newsubr be staticpro()'ed? I dont think so but I need
+ * FIXME: Should newsubr be staticpro()'ed? I don't think so but I need
* a guru to check.
*/
-#define check_module_subr() \
-do { \
- if (initialized) { \
- struct Lisp_Subr *newsubr; \
- newsubr = (Lisp_Subr *)xmalloc(sizeof(struct Lisp_Subr)); \
- memcpy (newsubr, subr, sizeof(struct Lisp_Subr)); \
- subr->doc = (CONST char *)newsubr; \
- subr = newsubr; \
- } \
+#define check_module_subr() \
+do { \
+ if (initialized) { \
+ Lisp_Subr *newsubr = (Lisp_Subr *) xmalloc (sizeof (Lisp_Subr)); \
+ memcpy (newsubr, subr, sizeof (Lisp_Subr)); \
+ subr->doc = (const char *)newsubr; \
+ subr = newsubr; \
+ } \
} while (0)
#else /* ! HAVE_SHLIB */
#define check_module_subr()
XSYMBOL (sym)->function = Fcons (Qmacro, fun);
}
-void
-deferror (Lisp_Object *symbol, CONST char *name, CONST char *messuhhj,
- Lisp_Object inherits_from)
+static void
+deferror_1 (Lisp_Object *symbol, const char *name, const char *messuhhj,
+ Lisp_Object inherits_from, int massage_p)
{
Lisp_Object conds;
- defsymbol (symbol, name);
+ if (massage_p)
+ defsymbol_massage_name (symbol, name);
+ else
+ defsymbol (symbol, name);
assert (SYMBOLP (inherits_from));
conds = Fget (inherits_from, Qerror_conditions, Qnil);
- pure_put (*symbol, Qerror_conditions, Fcons (*symbol, conds));
+ Fput (*symbol, Qerror_conditions, Fcons (*symbol, conds));
/* NOT build_translated_string (). This function is called at load time
and the string needs to get translated at run time. (This happens
in the function (display-error) in cmdloop.el.) */
- pure_put (*symbol, Qerror_message, build_string (messuhhj));
+ Fput (*symbol, Qerror_message, build_string (messuhhj));
+}
+
+void
+deferror (Lisp_Object *symbol, const char *name, const char *messuhhj,
+ Lisp_Object inherits_from)
+{
+ deferror_1 (symbol, name, messuhhj, inherits_from, 0);
+}
+
+void
+deferror_massage_name (Lisp_Object *symbol, const char *name,
+ const char *messuhhj, Lisp_Object inherits_from)
+{
+ deferror_1 (symbol, name, messuhhj, inherits_from, 1);
+}
+
+void
+deferror_massage_name_and_message (Lisp_Object *symbol, const char *name,
+ Lisp_Object inherits_from)
+{
+ char temp[500];
+ size_t i;
+ size_t len = strlen (name) - 1;
+
+ assert (len < sizeof (temp));
+ strcpy (temp, name + 1); /* Remove initial Q */
+ temp[0] = toupper (temp[0]);
+ for (i = 0; i < len; i++)
+ if (temp[i] == '_')
+ temp[i] = ' ';
+
+ deferror_1 (symbol, name, temp, inherits_from, 1);
}
void
syms_of_symbols (void)
{
- defsymbol (&Qvariable_documentation, "variable-documentation");
- defsymbol (&Qvariable_domain, "variable-domain"); /* I18N3 */
- defsymbol (&Qad_advice_info, "ad-advice-info");
- defsymbol (&Qad_activate, "ad-activate");
-
- defsymbol (&Qget_value, "get-value");
- defsymbol (&Qset_value, "set-value");
- defsymbol (&Qbound_predicate, "bound-predicate");
- defsymbol (&Qmake_unbound, "make-unbound");
- defsymbol (&Qlocal_predicate, "local-predicate");
- defsymbol (&Qmake_local, "make-local");
-
- defsymbol (&Qboundp, "boundp");
- defsymbol (&Qfboundp, "fboundp");
- defsymbol (&Qglobally_boundp, "globally-boundp");
- defsymbol (&Qmakunbound, "makunbound");
- defsymbol (&Qsymbol_value, "symbol-value");
- defsymbol (&Qset, "set");
- defsymbol (&Qsetq_default, "setq-default");
- defsymbol (&Qdefault_boundp, "default-boundp");
- defsymbol (&Qdefault_value, "default-value");
- defsymbol (&Qset_default, "set-default");
- defsymbol (&Qmake_variable_buffer_local, "make-variable-buffer-local");
- defsymbol (&Qmake_local_variable, "make-local-variable");
- defsymbol (&Qkill_local_variable, "kill-local-variable");
- defsymbol (&Qkill_console_local_variable, "kill-console-local-variable");
- defsymbol (&Qsymbol_value_in_buffer, "symbol-value-in-buffer");
- defsymbol (&Qsymbol_value_in_console, "symbol-value-in-console");
- defsymbol (&Qlocal_variable_p, "local-variable-p");
-
- defsymbol (&Qconst_integer, "const-integer");
- defsymbol (&Qconst_boolean, "const-boolean");
- defsymbol (&Qconst_object, "const-object");
- defsymbol (&Qconst_specifier, "const-specifier");
- defsymbol (&Qdefault_buffer, "default-buffer");
- defsymbol (&Qcurrent_buffer, "current-buffer");
- defsymbol (&Qconst_current_buffer, "const-current-buffer");
- defsymbol (&Qdefault_console, "default-console");
- defsymbol (&Qselected_console, "selected-console");
- defsymbol (&Qconst_selected_console, "const-selected-console");
+ DEFSYMBOL (Qvariable_documentation);
+ DEFSYMBOL (Qvariable_domain); /* I18N3 */
+ DEFSYMBOL (Qad_advice_info);
+ DEFSYMBOL (Qad_activate);
+
+ DEFSYMBOL (Qget_value);
+ DEFSYMBOL (Qset_value);
+ DEFSYMBOL (Qbound_predicate);
+ DEFSYMBOL (Qmake_unbound);
+ DEFSYMBOL (Qlocal_predicate);
+ DEFSYMBOL (Qmake_local);
+
+ DEFSYMBOL (Qboundp);
+ DEFSYMBOL (Qglobally_boundp);
+ DEFSYMBOL (Qmakunbound);
+ DEFSYMBOL (Qsymbol_value);
+ DEFSYMBOL (Qset);
+ DEFSYMBOL (Qsetq_default);
+ DEFSYMBOL (Qdefault_boundp);
+ DEFSYMBOL (Qdefault_value);
+ DEFSYMBOL (Qset_default);
+ DEFSYMBOL (Qmake_variable_buffer_local);
+ DEFSYMBOL (Qmake_local_variable);
+ DEFSYMBOL (Qkill_local_variable);
+ DEFSYMBOL (Qkill_console_local_variable);
+ DEFSYMBOL (Qsymbol_value_in_buffer);
+ DEFSYMBOL (Qsymbol_value_in_console);
+ DEFSYMBOL (Qlocal_variable_p);
+ DEFSYMBOL (Qconst_integer);
+ DEFSYMBOL (Qconst_boolean);
+ DEFSYMBOL (Qconst_object);
+ DEFSYMBOL (Qconst_specifier);
+ DEFSYMBOL (Qdefault_buffer);
+ DEFSYMBOL (Qcurrent_buffer);
+ DEFSYMBOL (Qconst_current_buffer);
+ DEFSYMBOL (Qdefault_console);
+ DEFSYMBOL (Qselected_console);
+ DEFSYMBOL (Qconst_selected_console);
DEFSUBR (Fintern);
DEFSUBR (Fintern_soft);
DEFSUBR (Fdefvaralias);
DEFSUBR (Fvariable_alias);
DEFSUBR (Findirect_variable);
+ DEFSUBR (Fvariable_binding_locus);
DEFSUBR (Fdontusethis_set_symbol_value_handler);
}
/* Create and initialize a Lisp variable whose value is forwarded to C data */
void
-defvar_magic (CONST char *symbol_name, CONST struct symbol_value_forward *magic)
+defvar_magic (const char *symbol_name, const struct symbol_value_forward *magic)
{
- Lisp_Object sym, kludge;
-
- /* Check that `magic' points somewhere we can represent as a Lisp pointer */
- XSETOBJ (kludge, Lisp_Type_Record, magic);
- if ((void *)magic != (void*) XPNTR (kludge))
- {
- /* This might happen on DATA_SEG_BITS machines. */
- /* abort (); */
- /* Copy it to somewhere which is representable. */
- struct symbol_value_forward *p = xnew (struct symbol_value_forward);
- memcpy (p, magic, sizeof *magic);
- magic = p;
- }
+ Lisp_Object sym;
#if defined(HAVE_SHLIB)
/*
sym = Fintern (build_string (symbol_name), Qnil);
else
#endif
- sym = Fintern (make_string_nocopy ((CONST Bufbyte *) symbol_name,
+ sym = Fintern (make_string_nocopy ((const Bufbyte *) symbol_name,
strlen (symbol_name)), Qnil);
- XSETOBJ (XSYMBOL (sym)->value, Lisp_Type_Record, magic);
+ XSETOBJ (XSYMBOL (sym)->value, magic);
}
void
projects / chise / xemacs-chise.git.1 / blobdiff