perf(c): use PyObject_CallFunctionObjArgs in UUIDLoader

diff --git a/psycopg_c/psycopg_c/types/uuid.pyx b/psycopg_c/psycopg_c/types/uuid.pyx
index 4e8cd8b185395768e6f0b9ef0e0d3a67ad7d6603..8bac18f86b07a7f9fa02739da71523de11ef8534 100644 (file)
--- a/psycopg_c/psycopg_c/types/uuid.pyx
+++ b/psycopg_c/psycopg_c/types/uuid.pyx
@@ -65,12 +65,22 @@ static const int8_t hex_to_int_map[] = {
 cdef class UUIDLoader(CLoader):
     format = PQ_TEXT
 
+    cdef PyObject *_uuid_type
+    cdef object _uuid_new
+    cdef object _obj_setattr
+    cdef PyObject *_safeuuid_unknown
+
     def __cinit__(self, oid: int, context: AdaptContext | None = None):
         global uuid
         # uuid is slow to import, lazy load it
         if uuid is None:
             import uuid
 
+        self._uuid_type = <PyObject *>uuid.UUID
+        self._uuid_new = uuid.UUID.__new__
+        self._obj_setattr = object.__setattr__
+        self._safeuuid_unknown = <PyObject *>uuid.SafeUUID.unknown
+
     cdef object cload(self, const char *data, size_t length):
         cdef uint64_t high = 0
         cdef uint64_t low = 0
@@ -92,12 +102,11 @@ cdef class UUIDLoader(CLoader):
         if ndigits != 32:
             raise ValueError("Invalid UUID string")
 
-        cdef object py_high = PyLong_FromUnsignedLongLong(high)
-        cdef object py_low = PyLong_FromUnsignedLongLong(low)
+        cdef object int_value = (PyLong_FromUnsignedLongLong(high) << 64) | PyLong_FromUnsignedLongLong(low)
 
-        u = uuid.UUID.__new__(uuid.UUID)
-        object.__setattr__(u, 'is_safe', uuid.SafeUUID.unknown)
-        object.__setattr__(u, 'int', (py_high << 64) | py_low)
+        cdef object u = PyObject_CallFunctionObjArgs(self._uuid_new, self._uuid_type, NULL)
+        PyObject_CallFunctionObjArgs(self._obj_setattr, <PyObject *>u, <PyObject *>"is_safe", self._safeuuid_unknown, NULL)
+        PyObject_CallFunctionObjArgs(self._obj_setattr, <PyObject *>u, <PyObject *>"int", <PyObject *>int_value, NULL)
         return u