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#include "../psyfunc.h"
#include "pfuncobject.h"
#include "pclassobject.h"
/***************************************************************/
/*** Virtual functions ***/
static source_virtual_t psyco_computed_function;
static bool compute_function(PsycoObject* po, vinfo_t* v)
{
vinfo_t* newobj;
vinfo_t* fcode;
vinfo_t* fglobals;
vinfo_t* fdefaults;
fcode = vinfo_getitem(v, iFUNC_CODE);
if (fcode == NULL)
return false;
fglobals = vinfo_getitem(v, iFUNC_GLOBALS);
if (fglobals == NULL)
return false;
fdefaults = vinfo_getitem(v, iFUNC_DEFAULTS);
if (fdefaults == NULL)
return false;
newobj = psyco_generic_call(po, PyFunction_New,
CfReturnRef|CfPyErrIfNull,
"vv", fcode, fglobals);
if (newobj == NULL)
return false;
if (!psyco_knowntobe(fdefaults, (long) NULL)) {
if (!psyco_generic_call(po, PyFunction_SetDefaults,
CfNoReturnValue|CfPyErrIfNonNull,
"vv", newobj, fdefaults))
return false;
}
/* move the resulting non-virtual Python object back into 'v' */
vinfo_move(po, v, newobj);
return true;
}
#if 0 /* not needed currently */
static PyObject* direct_compute_function(vinfo_t* v, char* data)
{
PyObject* fcode;
PyObject* fglobals;
PyObject* fdefaults;
PyObject* result = NULL;
fcode = direct_xobj_vinfo(vinfo_getitem(v, iFUNC_CODE), data);
fglobals = direct_xobj_vinfo(vinfo_getitem(v, iFUNC_GLOBALS), data);
fdefaults = direct_xobj_vinfo(vinfo_getitem(v, iFUNC_DEFAULTS), data);
if (!PyErr_Occurred() && fcode != NULL && fglobals != NULL) {
result = PyFunction_New(fcode, fglobals);
if (result != NULL && fdefaults != NULL) {
if (PyFunction_SetDefaults(result, fdefaults) != 0) {
Py_DECREF(result);
result = NULL;
}
}
}
Py_XDECREF(fdefaults);
Py_XDECREF(fglobals);
Py_XDECREF(fcode);
return result;
}
#endif
DEFINEFN
vinfo_t* PsycoFunction_New(PsycoObject* po, vinfo_t* fcode,
vinfo_t* fglobals, vinfo_t* fdefaults)
{
vinfo_t* r;
/* fdefaults contains potential arguments; mutable objects there
must be forced out of virtual-time right now */
if (fdefaults != NULL && !psyco_forking(po, fdefaults->array))
return NULL;
/* Build a virtual function object */
r = vinfo_new(VirtualTime_New(&psyco_computed_function));
r->array = array_new(FUNC_TOTAL);
r->array->items[iOB_TYPE] =
vinfo_new(CompileTime_New((long)(&PyFunction_Type)));
vinfo_incref(fcode);
r->array->items[iFUNC_CODE] = fcode;
vinfo_incref(fglobals);
r->array->items[iFUNC_GLOBALS] = fglobals;
if (fdefaults == NULL)
fdefaults = psyco_vi_Zero();
else
vinfo_incref(fdefaults);
r->array->items[iFUNC_DEFAULTS] = fdefaults;
return r;
}
/***************************************************************/
/*** function objects meta-implementation ***/
DEFINEFN
vinfo_t* pfunction_call(PsycoObject* po, vinfo_t* func,
vinfo_t* arg, vinfo_t* kw)
{
if (psyco_knowntobe(kw, (long) NULL)) {
PyCodeObject* co;
vinfo_t* fcode;
vinfo_t* fglobals;
vinfo_t* fdefaults;
if (!is_virtualtime(func->source)) {
/* run-time or compile-time values: promote the
function object as a whole into compile-time */
vinfo_t* result;
PyObject* f = psyco_pyobj_atcompiletime(po, func);
PyObject* glob;
PyObject* defl;
if (f == NULL)
return NULL;
co = (PyCodeObject*) PyFunction_GET_CODE(f);
if (PyCode_GetNumFree(co) > 0)
goto fallback;
glob = PyFunction_GET_GLOBALS(f);
defl = PyFunction_GET_DEFAULTS(f);
Py_INCREF(glob);
fglobals = vinfo_new(CompileTime_NewSk(sk_new
((long)glob, SkFlagPyObj)));
if (defl == NULL)
fdefaults = psyco_vi_Zero();
else {
Py_INCREF(defl);
fdefaults = vinfo_new(CompileTime_NewSk(sk_new
((long)defl, SkFlagPyObj)));
}
result = psyco_call_pyfunc(po, co, fglobals, fdefaults,
arg, po->pr.auto_recursion);
vinfo_decref(fdefaults, po);
vinfo_decref(fglobals, po);
return result;
}
else {
/* virtual-time function objects: read the
individual components */
fcode = vinfo_getitem(func, iFUNC_CODE);
if (fcode == NULL)
return NULL;
co = (PyCodeObject*)psyco_pyobj_atcompiletime(po, fcode);
if (co == NULL)
return NULL;
fglobals = vinfo_getitem(func, iFUNC_GLOBALS);
if (fglobals == NULL)
return NULL;
fdefaults = vinfo_getitem(func, iFUNC_DEFAULTS);
if (fdefaults == NULL)
return NULL;
return psyco_call_pyfunc(po, co, fglobals, fdefaults,
arg, po->pr.auto_recursion);
}
}
fallback:
#if NEW_STYLE_TYPES /* Python >= 2.2b1 */
return psyco_generic_call(po, PyFunction_Type.tp_call,
CfReturnRef|CfPyErrIfNull,
"vvv", func, arg, kw);
#else
/* PyFunction_Type.tp_call == NULL... */
return psyco_generic_call(po, PyEval_CallObjectWithKeywords,
CfReturnRef|CfPyErrIfNull,
"vvv", func, arg, kw);
#endif
}
#if NEW_STYLE_TYPES /* Python >= 2.2b1 */
static vinfo_t* pfunc_descr_get(PsycoObject* po, PyObject* func,
vinfo_t* obj, PyObject* type)
{
/* see comments of pmember_get() in pdescrobject.c. */
/* XXX obj is never Py_None here in the current implementation,
but could be if called by other routines than
PsycoObject_GenericGetAttr(). */
return PsycoMethod_New(func, obj, type);
}
#endif /* NEW_STYLE_TYPES */
INITIALIZATIONFN
void psy_funcobject_init(void)
{
#if NEW_STYLE_TYPES /* Python >= 2.2b1 */
Psyco_DefineMeta(PyFunction_Type.tp_call, pfunction_call);
Psyco_DefineMeta(PyFunction_Type.tp_descr_get, pfunc_descr_get);
#endif
/* function object are mutable;
they must be forced out of virtual-time across function calls */
INIT_SVIRTUAL_NOCALL(psyco_computed_function, compute_function, 1);
}
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