mirror of
https://github.com/python/cpython.git
synced 2024-12-01 03:01:36 +01:00
590baa4a7a
* funcobject.c (func_repr): don't call getstringvalue(None) for anonymous
functions.
* bltinmodule.c: removed lambda (which is now a built-in function);
removed implied lambda for string arg to filter/map/reduce.
* Grammar, graminit.[ch], compile.[ch]: replaced lambda as built-in
function by lambda as grammar entity: instead of "lambda('x: x+1')" you
write "lambda x: x+1".
* Xtmodule.c (checkargdict): return 0, not NULL, for error.
150 lines
3.4 KiB
C
150 lines
3.4 KiB
C
/***********************************************************
|
|
Copyright 1991, 1992, 1993 by Stichting Mathematisch Centrum,
|
|
Amsterdam, The Netherlands.
|
|
|
|
All Rights Reserved
|
|
|
|
Permission to use, copy, modify, and distribute this software and its
|
|
documentation for any purpose and without fee is hereby granted,
|
|
provided that the above copyright notice appear in all copies and that
|
|
both that copyright notice and this permission notice appear in
|
|
supporting documentation, and that the names of Stichting Mathematisch
|
|
Centrum or CWI not be used in advertising or publicity pertaining to
|
|
distribution of the software without specific, written prior permission.
|
|
|
|
STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
|
|
THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
|
|
FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
|
|
FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
|
OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
|
|
******************************************************************/
|
|
|
|
/* Function object implementation */
|
|
|
|
#include "allobjects.h"
|
|
#include "compile.h"
|
|
#include "structmember.h"
|
|
|
|
object *
|
|
newfuncobject(code, globals)
|
|
object *code;
|
|
object *globals;
|
|
{
|
|
funcobject *op = NEWOBJ(funcobject, &Functype);
|
|
if (op != NULL) {
|
|
INCREF(code);
|
|
op->func_code = code;
|
|
INCREF(globals);
|
|
op->func_globals = globals;
|
|
op->func_name = ((codeobject*)(op->func_code))->co_name;
|
|
INCREF(op->func_name);
|
|
}
|
|
return (object *)op;
|
|
}
|
|
|
|
object *
|
|
getfunccode(op)
|
|
object *op;
|
|
{
|
|
if (!is_funcobject(op)) {
|
|
err_badcall();
|
|
return NULL;
|
|
}
|
|
return ((funcobject *) op) -> func_code;
|
|
}
|
|
|
|
object *
|
|
getfuncglobals(op)
|
|
object *op;
|
|
{
|
|
if (!is_funcobject(op)) {
|
|
err_badcall();
|
|
return NULL;
|
|
}
|
|
return ((funcobject *) op) -> func_globals;
|
|
}
|
|
|
|
/* Methods */
|
|
|
|
#define OFF(x) offsetof(funcobject, x)
|
|
|
|
static struct memberlist func_memberlist[] = {
|
|
{"func_code", T_OBJECT, OFF(func_code), READONLY},
|
|
{"func_globals",T_OBJECT, OFF(func_globals), READONLY},
|
|
{"func_name", T_OBJECT, OFF(func_name), READONLY},
|
|
{NULL} /* Sentinel */
|
|
};
|
|
|
|
static object *
|
|
func_getattr(op, name)
|
|
funcobject *op;
|
|
char *name;
|
|
{
|
|
return getmember((char *)op, func_memberlist, name);
|
|
}
|
|
|
|
static void
|
|
func_dealloc(op)
|
|
funcobject *op;
|
|
{
|
|
DECREF(op->func_code);
|
|
DECREF(op->func_globals);
|
|
DEL(op);
|
|
}
|
|
|
|
static object*
|
|
func_repr(op)
|
|
funcobject *op;
|
|
{
|
|
char buf[140];
|
|
if (op->func_name == None)
|
|
sprintf(buf, "<anonymous function at %lx>", (long)op);
|
|
else
|
|
sprintf(buf, "<function %.100s at %lx>",
|
|
getstringvalue(op->func_name),
|
|
(long)op);
|
|
return newstringobject(buf);
|
|
}
|
|
|
|
static int
|
|
func_compare(f, g)
|
|
funcobject *f, *g;
|
|
{
|
|
if (f->func_globals != g->func_globals)
|
|
return (f->func_globals < g->func_globals) ? -1 : 1;
|
|
return cmpobject(f->func_code, g->func_code);
|
|
}
|
|
|
|
static long
|
|
func_hash(f)
|
|
funcobject *f;
|
|
{
|
|
long h;
|
|
h = hashobject(f->func_code);
|
|
if (h == -1) return h;
|
|
h = h ^ (long)f->func_globals;
|
|
if (h == -1) h = -2;
|
|
return h;
|
|
}
|
|
|
|
typeobject Functype = {
|
|
OB_HEAD_INIT(&Typetype)
|
|
0,
|
|
"function",
|
|
sizeof(funcobject),
|
|
0,
|
|
func_dealloc, /*tp_dealloc*/
|
|
0, /*tp_print*/
|
|
func_getattr, /*tp_getattr*/
|
|
0, /*tp_setattr*/
|
|
func_compare, /*tp_compare*/
|
|
func_repr, /*tp_repr*/
|
|
0, /*tp_as_number*/
|
|
0, /*tp_as_sequence*/
|
|
0, /*tp_as_mapping*/
|
|
func_hash, /*tp_hash*/
|
|
};
|