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#include "parts.h"
#include "util.h"
static PyObject *
hash_getfuncdef(PyObject *Py_UNUSED(module), PyObject *Py_UNUSED(args))
{
// bind PyHash_GetFuncDef()
PyHash_FuncDef *def = PyHash_GetFuncDef();
PyObject *types = PyImport_ImportModule("types");
if (types == NULL) {
return NULL;
}
PyObject *result = PyObject_CallMethod(types, "SimpleNamespace", NULL);
Py_DECREF(types);
if (result == NULL) {
return NULL;
}
// ignore PyHash_FuncDef.hash
PyObject *value = PyUnicode_FromString(def->name);
int res = PyObject_SetAttrString(result, "name", value);
Py_DECREF(value);
if (res < 0) {
return NULL;
}
value = PyLong_FromLong(def->hash_bits);
res = PyObject_SetAttrString(result, "hash_bits", value);
Py_DECREF(value);
if (res < 0) {
return NULL;
}
value = PyLong_FromLong(def->seed_bits);
res = PyObject_SetAttrString(result, "seed_bits", value);
Py_DECREF(value);
if (res < 0) {
return NULL;
}
return result;
}
static PyObject *
long_from_hash(Py_hash_t hash)
{
Py_BUILD_ASSERT(sizeof(long long) >= sizeof(hash));
return PyLong_FromLongLong(hash);
}
static PyObject *
hash_pointer(PyObject *Py_UNUSED(module), PyObject *arg)
{
void *ptr = PyLong_AsVoidPtr(arg);
if (ptr == NULL && PyErr_Occurred()) {
return NULL;
}
Py_hash_t hash = Py_HashPointer(ptr);
return long_from_hash(hash);
}
static PyObject *
hash_buffer(PyObject *Py_UNUSED(module), PyObject *args)
{
char *ptr;
Py_ssize_t len;
if (!PyArg_ParseTuple(args, "y#", &ptr, &len)) {
return NULL;
}
Py_hash_t hash = Py_HashBuffer(ptr, len);
return long_from_hash(hash);
}
static PyObject *
object_generichash(PyObject *Py_UNUSED(module), PyObject *arg)
{
NULLABLE(arg);
Py_hash_t hash = PyObject_GenericHash(arg);
return long_from_hash(hash);
}
static PyMethodDef test_methods[] = {
{"hash_getfuncdef", hash_getfuncdef, METH_NOARGS},
{"hash_pointer", hash_pointer, METH_O},
{"hash_buffer", hash_buffer, METH_VARARGS},
{"object_generichash", object_generichash, METH_O},
{NULL},
};
int
_PyTestCapi_Init_Hash(PyObject *m)
{
return PyModule_AddFunctions(m, test_methods);
}
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