Update weakref_ops.py

Author: BobTheBuidler

mypyc/primitives/weakref_ops.py

@@ -3,16 +3,36 @@
 
 # Weakref operations
 
-py_weakref_new_ref_op = function_op(
+"""
+py_new_weak_ref_op = function_op(
     name="weakref.weakref",
     arg_types=[object_rprimitive],
+    # TODO: how do I pass NULL as the 2nd arg? 
+    #extra_int_constants=[],
     result_type=object_rprimitive,
     c_function_name="PyWeakref_NewRef",
 )
+"""
 
-py_weakref_new_ref_op = function_op(
+py_new_weak_ref_with_callback_op = function_op(
+    name="weakref.weakref",
+    arg_types=[object_rprimitive, object_rprimitive],
+    result_type=object_rprimitive,
+    c_function_name="PyWeakref_NewRef",
+)
+
+"""
+py_new_weak_proxy_op = function_op(
     name="weakref.proxy",
     arg_types=[object_rprimitive],
     result_type=object_rprimitive,
     c_function_name="PyWeakref_NewProxy",
 )
+"""
+
+py_new_weak_proxy_with_callback_op = function_op(
+    name="weakref.proxy",
+    arg_types=[object_rprimitive, object_rprimitive],
+    result_type=object_rprimitive,
+    c_function_name="PyWeakref_NewProxy",
+)