c->body = Qnil;
c->next = handlerlist;
c->lisp_eval_depth = lisp_eval_depth;
- c->poll_suppress_count = poll_suppress_count;
c->interrupt_input_blocked = interrupt_input_blocked;
c->ptag = make_prompt_tag ();
return c;
c->body = Qnil;
c->next = handlerlist;
c->lisp_eval_depth = lisp_eval_depth;
- c->poll_suppress_count = poll_suppress_count;
c->interrupt_input_blocked = interrupt_input_blocked;
c->ptag = make_prompt_tag ();
return c;
call_debugger (list1 (code));
}
\f
-/* NOTE!!! Every function that can call EVAL must protect its args
- and temporaries from garbage collection while it needs them.
- The definition of `For' shows what you have to do. */
-
-DEFUN ("or", For, Sor, 0, UNEVALLED, 0,
- doc: /* Eval args until one of them yields non-nil, then return that value.
-The remaining args are not evalled at all.
-If all args return nil, return nil.
-usage: (or CONDITIONS...) */)
- (Lisp_Object args)
-{
- register Lisp_Object val = Qnil;
- struct gcpro gcpro1;
-
- GCPRO1 (args);
-
- while (CONSP (args))
- {
- val = eval_sub (XCAR (args));
- if (!NILP (val))
- break;
- args = XCDR (args);
- }
-
- UNGCPRO;
- return val;
-}
-
-DEFUN ("and", Fand, Sand, 0, UNEVALLED, 0,
- doc: /* Eval args until one of them yields nil, then return nil.
-The remaining args are not evalled at all.
-If no arg yields nil, return the last arg's value.
-usage: (and CONDITIONS...) */)
- (Lisp_Object args)
-{
- register Lisp_Object val = Qt;
- struct gcpro gcpro1;
-
- GCPRO1 (args);
-
- while (CONSP (args))
- {
- val = eval_sub (XCAR (args));
- if (NILP (val))
- break;
- args = XCDR (args);
- }
-
- UNGCPRO;
- return val;
-}
-
DEFUN ("if", Fif, Sif, 2, UNEVALLED, 0,
doc: /* If COND yields non-nil, do THEN, else do ELSE...
Returns the value of THEN or the value of the last of the ELSE's.
return Fprogn (XCDR (XCDR (args)));
}
-DEFUN ("cond", Fcond, Scond, 0, UNEVALLED, 0,
- doc: /* Try each clause until one succeeds.
-Each clause looks like (CONDITION BODY...). CONDITION is evaluated
-and, if the value is non-nil, this clause succeeds:
-then the expressions in BODY are evaluated and the last one's
-value is the value of the cond-form.
-If a clause has one element, as in (CONDITION), then the cond-form
-returns CONDITION's value, if that is non-nil.
-If no clause succeeds, cond returns nil.
-usage: (cond CLAUSES...) */)
- (Lisp_Object args)
-{
- Lisp_Object val = args;
- struct gcpro gcpro1;
-
- GCPRO1 (args);
- while (CONSP (args))
- {
- Lisp_Object clause = XCAR (args);
- val = eval_sub (Fcar (clause));
- if (!NILP (val))
- {
- if (!NILP (XCDR (clause)))
- val = Fprogn (XCDR (clause));
- break;
- }
- args = XCDR (args);
- }
- UNGCPRO;
-
- return val;
-}
-
DEFUN ("progn", Fprogn, Sprogn, 0, UNEVALLED, 0,
doc: /* Eval BODY forms sequentially and return value of last one.
usage: (progn BODY...) */)
Fprogn (body);
}
-DEFUN ("prog1", Fprog1, Sprog1, 1, UNEVALLED, 0,
- doc: /* Eval FIRST and BODY sequentially; return value from FIRST.
-The value of FIRST is saved during the evaluation of the remaining args,
-whose values are discarded.
-usage: (prog1 FIRST BODY...) */)
- (Lisp_Object args)
-{
- Lisp_Object val;
- Lisp_Object args_left;
- struct gcpro gcpro1, gcpro2;
-
- args_left = args;
- val = args;
- GCPRO2 (args, val);
-
- val = eval_sub (XCAR (args_left));
- while (CONSP (args_left = XCDR (args_left)))
- eval_sub (XCAR (args_left));
-
- UNGCPRO;
- return val;
-}
-
-DEFUN ("prog2", Fprog2, Sprog2, 2, UNEVALLED, 0,
- doc: /* Eval FORM1, FORM2 and BODY sequentially; return value from FORM2.
-The value of FORM2 is saved during the evaluation of the
-remaining args, whose values are discarded.
-usage: (prog2 FORM1 FORM2 BODY...) */)
- (Lisp_Object args)
-{
- struct gcpro gcpro1;
-
- GCPRO1 (args);
- eval_sub (XCAR (args));
- UNGCPRO;
- return Fprog1 (XCDR (args));
-}
-
DEFUN ("setq", Fsetq, Ssetq, 0, UNEVALLED, 0,
doc: /* Set each SYM to the value of its VAL.
The symbols SYM are variables; they are literal (not evaluated).
The return value is BASE-VARIABLE. */)
(Lisp_Object new_alias, Lisp_Object base_variable, Lisp_Object docstring)
{
- struct Lisp_Symbol *sym;
+ sym_t sym;
CHECK_SYMBOL (new_alias);
CHECK_SYMBOL (base_variable);
sym = XSYMBOL (new_alias);
- if (sym->constant)
+ if (SYMBOL_CONSTANT (sym))
/* Not sure why, but why not? */
error ("Cannot make a constant an alias");
- switch (sym->redirect)
+ switch (SYMBOL_REDIRECT (sym))
{
case SYMBOL_FORWARDED:
error ("Cannot make an internal variable an alias");
error ("Don't know how to make a let-bound variable an alias");
}
- sym->declared_special = 1;
- XSYMBOL (base_variable)->declared_special = 1;
- sym->redirect = SYMBOL_VARALIAS;
+ SET_SYMBOL_DECLARED_SPECIAL (sym, 1);
+ SET_SYMBOL_DECLARED_SPECIAL (XSYMBOL (base_variable), 1);
+ SET_SYMBOL_REDIRECT (sym, SYMBOL_VARALIAS);
SET_SYMBOL_ALIAS (sym, XSYMBOL (base_variable));
- sym->constant = SYMBOL_CONSTANT_P (base_variable);
+ SET_SYMBOL_CONSTANT (sym, SYMBOL_CONSTANT_P (base_variable));
LOADHIST_ATTACH (new_alias);
/* Even if docstring is nil: remove old docstring. */
Fput (new_alias, Qvariable_documentation, docstring);
tem = Fdefault_boundp (sym);
/* Do it before evaluating the initial value, for self-references. */
- XSYMBOL (sym)->declared_special = 1;
+ SET_SYMBOL_DECLARED_SPECIAL (XSYMBOL (sym), 1);
if (NILP (tem))
Fset_default (sym, eval_sub (XCAR (tail)));
LOADHIST_ATTACH (sym);
}
else if (!NILP (Vinternal_interpreter_environment)
- && !XSYMBOL (sym)->declared_special)
+ && ! SYMBOL_DECLARED_SPECIAL (XSYMBOL (sym)))
/* A simple (defvar foo) with lexical scoping does "nothing" except
declare that var to be dynamically scoped *locally* (i.e. within
the current file or let-block). */
if (!NILP (Vpurify_flag))
tem = Fpurecopy (tem);
Fset_default (sym, tem);
- XSYMBOL (sym)->declared_special = 1;
+ SET_SYMBOL_DECLARED_SPECIAL (XSYMBOL (sym), 1);
tem = Fcar (XCDR (XCDR (args)));
if (!NILP (tem))
{
(Lisp_Object symbol)
{
CHECK_SYMBOL (symbol);
- XSYMBOL (symbol)->declared_special = 0;
+ SET_SYMBOL_DECLARED_SPECIAL (XSYMBOL (symbol), 0);
return Qnil;
}
}
if (!NILP (lexenv) && SYMBOLP (var)
- && !XSYMBOL (var)->declared_special
+ && ! SYMBOL_DECLARED_SPECIAL (XSYMBOL (var))
&& NILP (Fmemq (var, Vinternal_interpreter_environment)))
/* Lexically bind VAR by adding it to the interpreter's binding
alist. */
tem = temps[argnum++];
if (!NILP (lexenv) && SYMBOLP (var)
- && !XSYMBOL (var)->declared_special
+ && ! SYMBOL_DECLARED_SPECIAL (XSYMBOL (var))
&& NILP (Fmemq (var, Vinternal_interpreter_environment)))
/* Lexically bind VAR by adding it to the lexenv alist. */
lexenv = Fcons (Fcons (var, tem), lexenv);
tem = Fassq (sym, environment);
if (NILP (tem))
{
- def = XSYMBOL (sym)->function;
+ def = SYMBOL_FUNCTION (sym);
if (!NILP (def))
continue;
}
restore_handler (void *data)
{
struct handler *c = data;
- set_poll_suppress_count (c->poll_suppress_count);
unblock_input_to (c->interrupt_input_blocked);
immediate_quit = 0;
}
fun = Fsymbol_function (fun);
}
- /* Emacs primitives are interactive if their DEFUN specifies an
- interactive spec. */
- if (SUBRP (fun))
- return XSUBR (fun)->intspec ? Qt : if_prop;
-
+ if (scm_is_true (scm_procedure_p (fun)))
+ return (scm_is_true (scm_procedure_property (fun, Qinteractive_form))
+ ? Qt : if_prop);
/* Bytecode objects are interactive if they are long enough to
have an element whose index is COMPILED_INTERACTIVE, which is
where the interactive spec is stored. */
CHECK_STRING (file);
/* If function is defined and not as an autoload, don't override. */
- if (!NILP (XSYMBOL (function)->function)
- && !AUTOLOADP (XSYMBOL (function)->function))
+ if (!NILP (SYMBOL_FUNCTION (function))
+ && !AUTOLOADP (SYMBOL_FUNCTION (function)))
return Qnil;
return Fdefalias (function,
fun = original_fun;
if (!SYMBOLP (fun))
fun = Ffunction (Fcons (fun, Qnil));
- else if (!NILP (fun) && (fun = XSYMBOL (fun)->function, SYMBOLP (fun)))
+ else if (!NILP (fun) && (fun = SYMBOL_FUNCTION (fun), SYMBOLP (fun)))
fun = indirect_function (fun);
- if (SUBRP (fun))
+ if (scm_is_true (scm_procedure_p (fun)))
{
- Lisp_Object numargs;
- Lisp_Object argvals[8];
- Lisp_Object args_left;
- register int i, maxargs;
-
- args_left = original_args;
- numargs = Flength (args_left);
-
- if (XINT (numargs) < XSUBR (fun)->min_args
- || (XSUBR (fun)->max_args >= 0
- && XSUBR (fun)->max_args < XINT (numargs)))
- xsignal2 (Qwrong_number_of_arguments, original_fun, numargs);
-
- else if (XSUBR (fun)->max_args == UNEVALLED)
- val = (XSUBR (fun)->function.aUNEVALLED) (args_left);
- else if (XSUBR (fun)->max_args == MANY)
- {
- /* Pass a vector of evaluated arguments. */
- Lisp_Object *vals;
- ptrdiff_t argnum = 0;
- USE_SAFE_ALLOCA;
-
- SAFE_ALLOCA_LISP (vals, XINT (numargs));
-
- GCPRO3 (args_left, fun, fun);
- gcpro3.var = vals;
- gcpro3.nvars = 0;
-
- while (!NILP (args_left))
- {
- vals[argnum++] = eval_sub (Fcar (args_left));
- args_left = Fcdr (args_left);
- gcpro3.nvars = argnum;
- }
-
- set_backtrace_args (specpdl_ptr - 1, vals);
- set_backtrace_nargs (specpdl_ptr - 1, XINT (numargs));
-
- val = (XSUBR (fun)->function.aMANY) (XINT (numargs), vals);
- UNGCPRO;
- SAFE_FREE ();
- }
- else
- {
- GCPRO3 (args_left, fun, fun);
- gcpro3.var = argvals;
- gcpro3.nvars = 0;
-
- maxargs = XSUBR (fun)->max_args;
- for (i = 0; i < maxargs; args_left = Fcdr (args_left))
- {
- argvals[i] = eval_sub (Fcar (args_left));
- gcpro3.nvars = ++i;
- }
-
- UNGCPRO;
+ Lisp_Object args_left = original_args;
+ Lisp_Object nargs = Flength (args_left);
+ Lisp_Object *args;
+ size_t argnum = 0;
- set_backtrace_args (specpdl_ptr - 1, argvals);
- set_backtrace_nargs (specpdl_ptr - 1, XINT (numargs));
+ SAFE_ALLOCA_LISP (args, XINT (nargs));
- switch (i)
- {
- case 0:
- val = (XSUBR (fun)->function.a0 ());
- break;
- case 1:
- val = (XSUBR (fun)->function.a1 (argvals[0]));
- break;
- case 2:
- val = (XSUBR (fun)->function.a2 (argvals[0], argvals[1]));
- break;
- case 3:
- val = (XSUBR (fun)->function.a3
- (argvals[0], argvals[1], argvals[2]));
- break;
- case 4:
- val = (XSUBR (fun)->function.a4
- (argvals[0], argvals[1], argvals[2], argvals[3]));
- break;
- case 5:
- val = (XSUBR (fun)->function.a5
- (argvals[0], argvals[1], argvals[2], argvals[3],
- argvals[4]));
- break;
- case 6:
- val = (XSUBR (fun)->function.a6
- (argvals[0], argvals[1], argvals[2], argvals[3],
- argvals[4], argvals[5]));
- break;
- case 7:
- val = (XSUBR (fun)->function.a7
- (argvals[0], argvals[1], argvals[2], argvals[3],
- argvals[4], argvals[5], argvals[6]));
- break;
-
- case 8:
- val = (XSUBR (fun)->function.a8
- (argvals[0], argvals[1], argvals[2], argvals[3],
- argvals[4], argvals[5], argvals[6], argvals[7]));
- break;
-
- default:
- /* Someone has created a subr that takes more arguments than
- is supported by this code. We need to either rewrite the
- subr to use a different argument protocol, or add more
- cases to this switch. */
- emacs_abort ();
- }
- }
+ while (! NILP (args_left))
+ {
+ args[argnum++] = eval_sub (Fcar (args_left));
+ args_left = Fcdr (args_left);
+ }
+ set_backtrace_args (specpdl_ptr - 1, args);
+ set_backtrace_nargs (specpdl_ptr - 1, argnum);
+ val = scm_call_n (fun, args, argnum);
+ }
+ else if (CONSP (fun) && EQ (XCAR (fun), Qspecial_operator))
+ {
+ val = scm_apply_0 (XCDR (fun), original_args);
}
else if (COMPILEDP (fun))
val = apply_lambda (fun, original_args);
/* Optimize for no indirection. */
if (SYMBOLP (fun) && !NILP (fun)
- && (fun = XSYMBOL (fun)->function, SYMBOLP (fun)))
+ && (fun = SYMBOL_FUNCTION (fun), SYMBOLP (fun)))
fun = indirect_function (fun);
if (NILP (fun))
{
/* Let funcall get the error. */
fun = args[0];
- goto funcall;
}
- if (SUBRP (fun))
- {
- if (numargs < XSUBR (fun)->min_args
- || (XSUBR (fun)->max_args >= 0 && XSUBR (fun)->max_args < numargs))
- goto funcall; /* Let funcall get the error. */
- else if (XSUBR (fun)->max_args >= 0 && XSUBR (fun)->max_args > numargs)
- {
- /* Avoid making funcall cons up a yet another new vector of arguments
- by explicitly supplying nil's for optional values. */
- SAFE_ALLOCA_LISP (funcall_args, 1 + XSUBR (fun)->max_args);
- for (i = numargs; i < XSUBR (fun)->max_args;)
- funcall_args[++i] = Qnil;
- GCPRO1 (*funcall_args);
- gcpro1.nvars = 1 + XSUBR (fun)->max_args;
- }
- }
- funcall:
/* We add 1 to numargs because funcall_args includes the
function itself as well as its arguments. */
if (!funcall_args)
/* Optimize for no indirection. */
fun = original_fun;
if (SYMBOLP (fun) && !NILP (fun)
- && (fun = XSYMBOL (fun)->function, SYMBOLP (fun)))
+ && (fun = SYMBOL_FUNCTION (fun), SYMBOLP (fun)))
fun = indirect_function (fun);
- if (SUBRP (fun))
+ if (scm_is_true (scm_procedure_p (fun)))
{
- if (numargs < XSUBR (fun)->min_args
- || (XSUBR (fun)->max_args >= 0 && XSUBR (fun)->max_args < numargs))
- {
- XSETFASTINT (lisp_numargs, numargs);
- xsignal2 (Qwrong_number_of_arguments, original_fun, lisp_numargs);
- }
-
- else if (XSUBR (fun)->max_args == UNEVALLED)
- xsignal1 (Qinvalid_function, original_fun);
-
- else if (XSUBR (fun)->max_args == MANY)
- val = (XSUBR (fun)->function.aMANY) (numargs, args + 1);
- else
- {
- if (XSUBR (fun)->max_args > numargs)
- {
- internal_args = alloca (XSUBR (fun)->max_args
- * sizeof *internal_args);
- memcpy (internal_args, args + 1, numargs * word_size);
- for (i = numargs; i < XSUBR (fun)->max_args; i++)
- internal_args[i] = Qnil;
- }
- else
- internal_args = args + 1;
- switch (XSUBR (fun)->max_args)
- {
- case 0:
- val = (XSUBR (fun)->function.a0 ());
- break;
- case 1:
- val = (XSUBR (fun)->function.a1 (internal_args[0]));
- break;
- case 2:
- val = (XSUBR (fun)->function.a2
- (internal_args[0], internal_args[1]));
- break;
- case 3:
- val = (XSUBR (fun)->function.a3
- (internal_args[0], internal_args[1], internal_args[2]));
- break;
- case 4:
- val = (XSUBR (fun)->function.a4
- (internal_args[0], internal_args[1], internal_args[2],
- internal_args[3]));
- break;
- case 5:
- val = (XSUBR (fun)->function.a5
- (internal_args[0], internal_args[1], internal_args[2],
- internal_args[3], internal_args[4]));
- break;
- case 6:
- val = (XSUBR (fun)->function.a6
- (internal_args[0], internal_args[1], internal_args[2],
- internal_args[3], internal_args[4], internal_args[5]));
- break;
- case 7:
- val = (XSUBR (fun)->function.a7
- (internal_args[0], internal_args[1], internal_args[2],
- internal_args[3], internal_args[4], internal_args[5],
- internal_args[6]));
- break;
-
- case 8:
- val = (XSUBR (fun)->function.a8
- (internal_args[0], internal_args[1], internal_args[2],
- internal_args[3], internal_args[4], internal_args[5],
- internal_args[6], internal_args[7]));
- break;
-
- default:
-
- /* If a subr takes more than 8 arguments without using MANY
- or UNEVALLED, we need to extend this function to support it.
- Until this is done, there is no way to call the function. */
- emacs_abort ();
- }
- }
+ val = scm_call_n (fun, args + 1, numargs);
}
else if (COMPILEDP (fun))
val = funcall_lambda (fun, numargs, args + 1);
which was made in the buffer that is now current. */
bool
-let_shadows_buffer_binding_p (struct Lisp_Symbol *symbol)
+let_shadows_buffer_binding_p (sym_t symbol)
{
union specbinding *p;
Lisp_Object buf = Fcurrent_buffer ();
for (p = specpdl_ptr; p > specpdl; )
if ((--p)->kind > SPECPDL_LET)
{
- struct Lisp_Symbol *let_bound_symbol = XSYMBOL (specpdl_symbol (p));
- eassert (let_bound_symbol->redirect != SYMBOL_VARALIAS);
+ sym_t let_bound_symbol = XSYMBOL (specpdl_symbol (p));
+ eassert (SYMBOL_REDIRECT (let_bound_symbol) != SYMBOL_VARALIAS);
if (symbol == let_bound_symbol
&& EQ (specpdl_where (p), buf))
return 1;
void
specbind (Lisp_Object symbol, Lisp_Object value)
{
- struct Lisp_Symbol *sym;
+ sym_t sym;
CHECK_SYMBOL (symbol);
sym = XSYMBOL (symbol);
start:
- switch (sym->redirect)
+ switch (SYMBOL_REDIRECT (sym))
{
case SYMBOL_VARALIAS:
sym = indirect_variable (sym); XSETSYMBOL (symbol, sym); goto start;
specpdl_ptr->let.symbol = symbol;
specpdl_ptr->let.old_value = SYMBOL_VAL (sym);
grow_specpdl ();
- if (!sym->constant)
+ if (! SYMBOL_CONSTANT (sym))
SET_SYMBOL_VAL (sym, value);
else
set_internal (symbol, value, Qnil, 1);
specpdl_ptr->let.old_value = ovalue;
specpdl_ptr->let.where = Fcurrent_buffer ();
- eassert (sym->redirect != SYMBOL_LOCALIZED
+ eassert (SYMBOL_REDIRECT (sym) != SYMBOL_LOCALIZED
|| (EQ (SYMBOL_BLV (sym)->where, Fcurrent_buffer ())));
- if (sym->redirect == SYMBOL_LOCALIZED)
+ if (SYMBOL_REDIRECT (sym) == SYMBOL_LOCALIZED)
{
if (!blv_found (SYMBOL_BLV (sym)))
specpdl_ptr->let.kind = SPECPDL_LET_DEFAULT;
{ /* If variable has a trivial value (no forwarding), we can
just set it. No need to check for constant symbols here,
since that was already done by specbind. */
- struct Lisp_Symbol *sym = XSYMBOL (specpdl_symbol (specpdl_ptr));
- if (sym->redirect == SYMBOL_PLAINVAL)
+ sym_t sym = XSYMBOL (specpdl_symbol (specpdl_ptr));
+ if (SYMBOL_REDIRECT (sym) == SYMBOL_PLAINVAL)
{
SET_SYMBOL_VAL (sym, specpdl_old_value (specpdl_ptr));
break;
(Lisp_Object symbol)
{
CHECK_SYMBOL (symbol);
- return XSYMBOL (symbol)->declared_special ? Qt : Qnil;
+ return SYMBOL_DECLARED_SPECIAL (XSYMBOL (symbol)) ? Qt : Qnil;
}
\f
{ /* If variable has a trivial value (no forwarding), we can
just set it. No need to check for constant symbols here,
since that was already done by specbind. */
- struct Lisp_Symbol *sym = XSYMBOL (specpdl_symbol (tmp));
- if (sym->redirect == SYMBOL_PLAINVAL)
+ sym_t sym = XSYMBOL (specpdl_symbol (tmp));
+ if (SYMBOL_REDIRECT (sym) == SYMBOL_PLAINVAL)
{
Lisp_Object old_value = specpdl_old_value (tmp);
set_specpdl_old_value (tmp, SYMBOL_VAL (sym));
HCoop / bpt / emacs.git / blobdiff