Fix method python method call without self

[philippedistributive]

Do check if method has 0 args meaning no self and ultimately fail in the correct manner

closes #436

[zollqir]

logic works, but a simpler solution is available

[zollqir]

These changes are not necessary, the comparison on line 404 just needs to change

diff --git a/src/jsTypeFactory.cc b/src/jsTypeFactory.cc
index 24eb5c4..7238da3 100644
--- a/src/jsTypeFactory.cc
+++ b/src/jsTypeFactory.cc
@@ -379,29 +379,21 @@ bool callPyFunc(JSContext *cx, unsigned int argc, JS::Value *vp) {
   else {
     nNormalArgs = 1;
     PyObject *f = pyFunc;
-    bool isMethod;
     if (PyMethod_Check(pyFunc)) {
       f = PyMethod_Function(pyFunc); // borrowed reference
       nNormalArgs -= 1; // don't include the implicit `self` of the method as an argument
-      isMethod = true;
-    } else {
-      isMethod = false;
     }
     PyCodeObject *bytecode = (PyCodeObject *)PyFunction_GetCode(f); // borrowed reference
     PyObject *defaults = PyFunction_GetDefaults(f); // borrowed reference
     nDefaultArgs = defaults ? PyTuple_Size(defaults) : 0;
-    if (bytecode->co_argcount == 0 && isMethod) {
-      nNormalArgs += nDefaultArgs;
-    } else {
-      nNormalArgs += bytecode->co_argcount - nDefaultArgs - 1;
-    }
+    nNormalArgs += bytecode->co_argcount - nDefaultArgs - 1;
     if (bytecode->co_flags & CO_VARARGS) {
       varargs = true;
     }
   }
 
   // use faster calling if no arguments are needed
-  if (((nNormalArgs + nDefaultArgs) == 0 && !varargs)) {
+  if (((nNormalArgs + nDefaultArgs) <= 0 && !varargs)) {
     #if PY_VERSION_HEX >= 0x03090000
     pyRval = PyObject_CallNoArgs(pyFunc);
     #else```

[zollqir]

LGTM