Merge commit '91cd46' into refcounting

src/runtime/builtin_modules/builtins.cpp

@@ -1873,6 +1873,7 @@ void setupBuiltins() {
     notimplemented_cls->giveAttr("__repr__",
                                  new BoxedFunction(FunctionMetadata::create((void*)notimplementedRepr, STR, 1)));
     notimplemented_cls->freeze();
+    notimplemented_cls->instances_are_nonzero = true;
     NotImplemented = new (notimplemented_cls) Box();
 
     constants.push_back(NotImplemented);

src/runtime/float.cpp

@@ -115,24 +115,24 @@ extern "C" double floordiv_float_float(double lhs, double rhs) {
 }
 
 extern "C" Box* floatAddFloat(BoxedFloat* lhs, BoxedFloat* rhs) {
-    assert(lhs->cls == float_cls);
-    assert(rhs->cls == float_cls);
+    assert(PyFloat_Check(lhs));
+    assert(PyFloat_Check(rhs));
     return boxFloat(lhs->d + rhs->d);
 }
 
 extern "C" Box* floatAddInt(BoxedFloat* lhs, BoxedInt* rhs) {
-    assert(lhs->cls == float_cls);
+    assert(PyFloat_Check(lhs));
     assert(PyInt_Check(rhs));
     return boxFloat(lhs->d + rhs->n);
 }
 
 extern "C" Box* floatAdd(BoxedFloat* lhs, Box* rhs) {
-    assert(lhs->cls == float_cls);
+    assert(PyFloat_Check(lhs));
     if (PyInt_Check(rhs)) {
         return floatAddInt(lhs, static_cast<BoxedInt*>(rhs));
-    } else if (rhs->cls == float_cls) {
+    } else if (PyFloat_Check(rhs)) {
         return floatAddFloat(lhs, static_cast<BoxedFloat*>(rhs));
-    } else if (rhs->cls == long_cls) {
+    } else if (PyLong_Check(rhs)) {
         double rhs_f = PyLong_AsDouble(rhs);
         if (rhs_f == -1.0 && PyErr_Occurred()) {
             throwCAPIException();
@@ -144,26 +144,26 @@ extern "C" Box* floatAdd(BoxedFloat* lhs, Box* rhs) {
 }
 
 extern "C" Box* floatDivFloat(BoxedFloat* lhs, BoxedFloat* rhs) {
-    assert(lhs->cls == float_cls);
-    assert(rhs->cls == float_cls);
+    assert(PyFloat_Check(lhs));
+    assert(PyFloat_Check(rhs));
     raiseDivZeroExcIfZero(rhs->d);
     return boxFloat(lhs->d / rhs->d);
 }
 
 extern "C" Box* floatDivInt(BoxedFloat* lhs, BoxedInt* rhs) {
-    assert(lhs->cls == float_cls);
+    assert(PyFloat_Check(lhs));
     assert(PyInt_Check(rhs));
     raiseDivZeroExcIfZero(rhs->n);
     return boxFloat(lhs->d / rhs->n);
 }
 
 extern "C" Box* floatDiv(BoxedFloat* lhs, Box* rhs) {
-    assert(lhs->cls == float_cls);
+    assert(PyFloat_Check(lhs));
     if (PyInt_Check(rhs)) {
         return floatDivInt(lhs, static_cast<BoxedInt*>(rhs));
-    } else if (rhs->cls == float_cls) {
+    } else if (PyFloat_Check(rhs)) {
         return floatDivFloat(lhs, static_cast<BoxedFloat*>(rhs));
-    } else if (rhs->cls == long_cls) {
+    } else if (PyLong_Check(rhs)) {
         double rhs_f = PyLong_AsDouble(rhs);
         if (rhs_f == -1.0 && PyErr_Occurred()) {
             throwCAPIException();
@@ -175,12 +175,12 @@ extern "C" Box* floatDiv(BoxedFloat* lhs, Box* rhs) {
 }
 
 extern "C" Box* floatTruediv(BoxedFloat* lhs, Box* rhs) {
-    assert(lhs->cls == float_cls);
+    assert(PyFloat_Check(lhs));
     if (PyInt_Check(rhs)) {
         return floatDivInt(lhs, static_cast<BoxedInt*>(rhs));
-    } else if (rhs->cls == float_cls) {
+    } else if (PyFloat_Check(rhs)) {
         return floatDivFloat(lhs, static_cast<BoxedFloat*>(rhs));
-    } else if (rhs->cls == long_cls) {
+    } else if (PyLong_Check(rhs)) {
         double rhs_f = PyLong_AsDouble(rhs);
         if (rhs_f == -1.0 && PyErr_Occurred()) {
             throwCAPIException();
@@ -192,26 +192,26 @@ extern "C" Box* floatTruediv(BoxedFloat* lhs, Box* rhs) {
 }
 
 extern "C" Box* floatRDivFloat(BoxedFloat* lhs, BoxedFloat* rhs) {
-    assert(lhs->cls == float_cls);
-    assert(rhs->cls == float_cls);
+    assert(PyFloat_Check(lhs));
+    assert(PyFloat_Check(rhs));
     raiseDivZeroExcIfZero(lhs->d);
     return boxFloat(rhs->d / lhs->d);
 }
 
 extern "C" Box* floatRDivInt(BoxedFloat* lhs, BoxedInt* rhs) {
-    assert(lhs->cls == float_cls);
+    assert(PyFloat_Check(lhs));
     assert(PyInt_Check(rhs));
     raiseDivZeroExcIfZero(lhs->d);
     return boxFloat(rhs->n / lhs->d);
 }
 
 extern "C" Box* floatRDiv(BoxedFloat* lhs, Box* rhs) {
-    assert(lhs->cls == float_cls);
+    assert(PyFloat_Check(lhs));
     if (PyInt_Check(rhs)) {
         return floatRDivInt(lhs, static_cast<BoxedInt*>(rhs));
-    } else if (rhs->cls == float_cls) {
+    } else if (PyFloat_Check(rhs)) {
         return floatRDivFloat(lhs, static_cast<BoxedFloat*>(rhs));
-    } else if (rhs->cls == long_cls) {
+    } else if (PyLong_Check(rhs)) {
         double rhs_f = PyLong_AsDouble(rhs);
         if (rhs_f == -1.0 && PyErr_Occurred()) {
             throwCAPIException();
@@ -245,26 +245,26 @@ Box* floatRTruediv(BoxedFloat* lhs, Box* rhs) {
 }
 
 extern "C" Box* floatFloorDivFloat(BoxedFloat* lhs, BoxedFloat* rhs) {
-    assert(lhs->cls == float_cls);
-    assert(rhs->cls == float_cls);
+    assert(PyFloat_Check(lhs));
+    assert(PyFloat_Check(rhs));
     raiseDivZeroExcIfZero(rhs->d);
     return boxFloat(floor(lhs->d / rhs->d));
 }
 
 extern "C" Box* floatFloorDivInt(BoxedFloat* lhs, BoxedInt* rhs) {
-    assert(lhs->cls == float_cls);
+    assert(PyFloat_Check(lhs));
     assert(PyInt_Check(rhs));
     raiseDivZeroExcIfZero(rhs->n);
     return boxFloat(floor(lhs->d / rhs->n));
 }
 
 extern "C" Box* floatFloorDiv(BoxedFloat* lhs, Box* rhs) {
-    assert(lhs->cls == float_cls);
+    assert(PyFloat_Check(lhs));
     if (PyInt_Check(rhs)) {
         return floatFloorDivInt(lhs, static_cast<BoxedInt*>(rhs));
-    } else if (rhs->cls == float_cls) {
+    } else if (PyFloat_Check(rhs)) {
         return floatFloorDivFloat(lhs, static_cast<BoxedFloat*>(rhs));
-    } else if (rhs->cls == long_cls) {
+    } else if (PyLong_Check(rhs)) {
         double rhs_f = PyLong_AsDouble(rhs);
         if (rhs_f == -1.0 && PyErr_Occurred()) {
             throwCAPIException();
@@ -276,16 +276,16 @@ extern "C" Box* floatFloorDiv(BoxedFloat* lhs, Box* rhs) {
 }
 
 extern "C" Box* floatRFloorDiv(BoxedFloat* lhs, Box* _rhs) {
-    assert(lhs->cls == float_cls);
+    assert(PyFloat_Check(lhs));
     if (PyInt_Check(_rhs)) {
         BoxedInt* rhs = (BoxedInt*)_rhs;
         raiseDivZeroExcIfZero(lhs->d);
         return boxFloat(floor(rhs->n / lhs->d));
-    } else if (_rhs->cls == float_cls) {
+    } else if (PyFloat_Check(_rhs)) {
         BoxedFloat* rhs = (BoxedFloat*)_rhs;
         raiseDivZeroExcIfZero(lhs->d);
         return boxFloat(floor(rhs->d / lhs->d));
-    } else if (_rhs->cls == long_cls) {
+    } else if (PyLong_Check(_rhs)) {
         double rhs_f = PyLong_AsDouble(_rhs);
         if (rhs_f == -1.0 && PyErr_Occurred()) {
             throwCAPIException();
@@ -599,24 +599,24 @@ extern "C" Box* floatGt(BoxedFloat* lhs, Box* rhs) {
 }
 
 extern "C" Box* floatModFloat(BoxedFloat* lhs, BoxedFloat* rhs) {
-    assert(lhs->cls == float_cls);
-    assert(rhs->cls == float_cls);
+    assert(PyFloat_Check(lhs));
+    assert(PyFloat_Check(rhs));
     return boxFloat(mod_float_float(lhs->d, rhs->d));
 }
 
 extern "C" Box* floatModInt(BoxedFloat* lhs, BoxedInt* rhs) {
-    assert(lhs->cls == float_cls);
+    assert(PyFloat_Check(lhs));
     assert(PyInt_Check(rhs));
     return boxFloat(mod_float_float(lhs->d, rhs->n));
 }
 
 extern "C" Box* floatMod(BoxedFloat* lhs, Box* rhs) {
-    assert(lhs->cls == float_cls);
+    assert(PyFloat_Check(lhs));
     if (PyInt_Check(rhs)) {
         return floatModInt(lhs, static_cast<BoxedInt*>(rhs));
-    } else if (rhs->cls == float_cls) {
+    } else if (PyFloat_Check(rhs)) {
         return floatModFloat(lhs, static_cast<BoxedFloat*>(rhs));
-    } else if (rhs->cls == long_cls) {
+    } else if (PyLong_Check(rhs)) {
         double rhs_f = PyLong_AsDouble(rhs);
         if (rhs_f == -1.0 && PyErr_Occurred()) {
             throwCAPIException();
@@ -628,24 +628,24 @@ extern "C" Box* floatMod(BoxedFloat* lhs, Box* rhs) {
 }
 
 extern "C" Box* floatRModFloat(BoxedFloat* lhs, BoxedFloat* rhs) {
-    assert(lhs->cls == float_cls);
-    assert(rhs->cls == float_cls);
+    assert(PyFloat_Check(lhs));
+    assert(PyFloat_Check(rhs));
     return boxFloat(mod_float_float(rhs->d, lhs->d));
 }
 
 extern "C" Box* floatRModInt(BoxedFloat* lhs, BoxedInt* rhs) {
-    assert(lhs->cls == float_cls);
+    assert(PyFloat_Check(lhs));
     assert(PyInt_Check(rhs));
     return boxFloat(mod_float_float(rhs->n, lhs->d));
 }
 
 extern "C" Box* floatRMod(BoxedFloat* lhs, Box* rhs) {
-    assert(lhs->cls == float_cls);
+    assert(PyFloat_Check(lhs));
     if (PyInt_Check(rhs)) {
         return floatRModInt(lhs, static_cast<BoxedInt*>(rhs));
-    } else if (rhs->cls == float_cls) {
+    } else if (PyFloat_Check(rhs)) {
         return floatRModFloat(lhs, static_cast<BoxedFloat*>(rhs));
-    } else if (rhs->cls == long_cls) {
+    } else if (PyLong_Check(rhs)) {
         double rhs_f = PyLong_AsDouble(rhs);
         if (rhs_f == -1.0 && PyErr_Occurred()) {
             throwCAPIException();
@@ -690,14 +690,14 @@ extern "C" Box* floatPow(BoxedFloat* lhs, Box* rhs, Box* mod) {
 
 extern "C" Box* floatPowFloat(BoxedFloat* lhs, BoxedFloat* rhs, Box* mod = None) {
     // TODO to specialize this, need to account for all the special cases in float_pow
-    assert(lhs->cls == float_cls);
-    assert(rhs->cls == float_cls);
+    assert(PyFloat_Check(lhs));
+    assert(PyFloat_Check(rhs));
     return floatPow(lhs, rhs, mod);
 }
 
 extern "C" Box* floatPowInt(BoxedFloat* lhs, BoxedInt* rhs, Box* mod = None) {
     // TODO to specialize this, need to account for all the special cases in float_pow
-    assert(lhs->cls == float_cls);
+    assert(PyFloat_Check(lhs));
     assert(PyInt_Check(rhs));
     return floatPow(lhs, rhs, mod);
 }
@@ -725,24 +725,24 @@ extern "C" double pow_float_float(double lhs, double rhs) {
 }
 
 extern "C" Box* floatMulFloat(BoxedFloat* lhs, BoxedFloat* rhs) {
-    assert(lhs->cls == float_cls);
-    assert(rhs->cls == float_cls);
+    assert(PyFloat_Check(lhs));
+    assert(PyFloat_Check(rhs));
     return boxFloat(lhs->d * rhs->d);
 }
 
 extern "C" Box* floatMulInt(BoxedFloat* lhs, BoxedInt* rhs) {
-    assert(lhs->cls == float_cls);
+    assert(PyFloat_Check(lhs));
     assert(PyInt_Check(rhs));
     return boxFloat(lhs->d * rhs->n);
 }
 
 extern "C" Box* floatMul(BoxedFloat* lhs, Box* rhs) {
-    assert(lhs->cls == float_cls);
+    assert(PyFloat_Check(lhs));
     if (PyInt_Check(rhs)) {
         return floatMulInt(lhs, static_cast<BoxedInt*>(rhs));
-    } else if (rhs->cls == float_cls) {
+    } else if (PyFloat_Check(rhs)) {
         return floatMulFloat(lhs, static_cast<BoxedFloat*>(rhs));
-    } else if (rhs->cls == long_cls) {
+    } else if (PyLong_Check(rhs)) {
         double rhs_f = PyLong_AsDouble(rhs);
         if (rhs_f == -1.0 && PyErr_Occurred()) {
             throwCAPIException();
@@ -754,24 +754,24 @@ extern "C" Box* floatMul(BoxedFloat* lhs, Box* rhs) {
 }
 
 extern "C" Box* floatSubFloat(BoxedFloat* lhs, BoxedFloat* rhs) {
-    assert(lhs->cls == float_cls);
-    assert(rhs->cls == float_cls);
+    assert(PyFloat_Check(lhs));
+    assert(PyFloat_Check(rhs));
     return boxFloat(lhs->d - rhs->d);
 }
 
 extern "C" Box* floatSubInt(BoxedFloat* lhs, BoxedInt* rhs) {
-    assert(lhs->cls == float_cls);
+    assert(PyFloat_Check(lhs));
     assert(PyInt_Check(rhs));
     return boxFloat(lhs->d - rhs->n);
 }
 
 extern "C" Box* floatSub(BoxedFloat* lhs, Box* rhs) {
-    assert(lhs->cls == float_cls);
+    assert(PyFloat_Check(lhs));
     if (PyInt_Check(rhs)) {
         return floatSubInt(lhs, static_cast<BoxedInt*>(rhs));
-    } else if (rhs->cls == float_cls) {
+    } else if (PyFloat_Check(rhs)) {
         return floatSubFloat(lhs, static_cast<BoxedFloat*>(rhs));
-    } else if (rhs->cls == long_cls) {
+    } else if (PyLong_Check(rhs)) {
         double rhs_f = PyLong_AsDouble(rhs);
         if (rhs_f == -1.0 && PyErr_Occurred()) {
             throwCAPIException();
@@ -783,24 +783,24 @@ extern "C" Box* floatSub(BoxedFloat* lhs, Box* rhs) {
 }
 
 extern "C" Box* floatRSubFloat(BoxedFloat* lhs, BoxedFloat* rhs) {
-    assert(lhs->cls == float_cls);
-    assert(rhs->cls == float_cls);
+    assert(PyFloat_Check(lhs));
+    assert(PyFloat_Check(rhs));
     return boxFloat(rhs->d - lhs->d);
 }
 
 extern "C" Box* floatRSubInt(BoxedFloat* lhs, BoxedInt* rhs) {
-    assert(lhs->cls == float_cls);
+    assert(PyFloat_Check(lhs));
     assert(PyInt_Check(rhs));
     return boxFloat(rhs->n - lhs->d);
 }
 
 extern "C" Box* floatRSub(BoxedFloat* lhs, Box* rhs) {
-    assert(lhs->cls == float_cls);
+    assert(PyFloat_Check(lhs));
     if (PyInt_Check(rhs)) {
         return floatRSubInt(lhs, static_cast<BoxedInt*>(rhs));
-    } else if (rhs->cls == float_cls) {
+    } else if (PyFloat_Check(rhs)) {
         return floatRSubFloat(lhs, static_cast<BoxedFloat*>(rhs));
-    } else if (rhs->cls == long_cls) {
+    } else if (PyLong_Check(rhs)) {
         double rhs_f = PyLong_AsDouble(rhs);
         if (rhs_f == -1.0 && PyErr_Occurred()) {
             throwCAPIException();
@@ -812,12 +812,12 @@ extern "C" Box* floatRSub(BoxedFloat* lhs, Box* rhs) {
 }
 
 Box* floatNeg(BoxedFloat* self) {
-    assert(self->cls == float_cls);
+    assert(PyFloat_Check(self));
     return boxFloat(-self->d);
 }
 
 Box* floatPos(BoxedFloat* self) {
-    assert(self->cls == float_cls);
+    assert(PyFloat_Check(self));
     return PyFloat_FromDouble(self->d);
 }
 
@@ -830,7 +830,7 @@ Box* floatAbs(BoxedFloat* self) {
 }
 
 bool floatNonzeroUnboxed(BoxedFloat* self) {
-    assert(self->cls == float_cls);
+    assert(PyFloat_Check(self));
     return self->d != 0.0;
 }
 
@@ -1115,18 +1115,18 @@ extern "C" void printFloat(double d) {
 
 static void _addFunc(const char* name, ConcreteCompilerType* rtn_type, void* float_func, void* int_func,
                      void* boxed_func) {
-    std::vector<ConcreteCompilerType*> v_ff, v_fi, v_fu;
+    std::vector<ConcreteCompilerType*> v_ff, v_fi, v_uu;
     v_ff.push_back(BOXED_FLOAT);
     v_ff.push_back(BOXED_FLOAT);
     v_fi.push_back(BOXED_FLOAT);
     v_fi.push_back(BOXED_INT);
-    v_fu.push_back(BOXED_FLOAT);
-    v_fu.push_back(UNKNOWN);
+    v_uu.push_back(UNKNOWN);
+    v_uu.push_back(UNKNOWN);
 
     FunctionMetadata* md = new FunctionMetadata(2, false, false);
     md->addVersion(float_func, rtn_type, v_ff);
     md->addVersion(int_func, rtn_type, v_fi);
-    md->addVersion(boxed_func, UNKNOWN, v_fu);
+    md->addVersion(boxed_func, UNKNOWN, v_uu);
     float_cls->giveAttr(name, new BoxedFunction(md));
 }
 

src/runtime/int.cpp

@@ -483,7 +483,7 @@ extern "C" Box* intAddInt(BoxedInt* lhs, BoxedInt* rhs) {
 
 extern "C" Box* intAddFloat(BoxedInt* lhs, BoxedFloat* rhs) {
     assert(PyInt_Check(lhs));
-    assert(rhs->cls == float_cls);
+    assert(PyFloat_Check(rhs));
     return boxFloat(lhs->n + rhs->d);
 }
 
@@ -494,7 +494,7 @@ extern "C" Box* intAdd(BoxedInt* lhs, Box* rhs) {
     if (PyInt_Check(rhs)) {
         BoxedInt* rhs_int = static_cast<BoxedInt*>(rhs);
         return add_i64_i64(lhs->n, rhs_int->n);
-    } else if (rhs->cls == float_cls) {
+    } else if (PyFloat_Check(rhs)) {
         BoxedFloat* rhs_float = static_cast<BoxedFloat*>(rhs);
         return boxFloat(lhs->n + rhs_float->d);
     } else {
@@ -609,7 +609,7 @@ extern "C" Box* intDivInt(BoxedInt* lhs, BoxedInt* rhs) {
 
 extern "C" Box* intDivFloat(BoxedInt* lhs, BoxedFloat* rhs) {
     assert(PyInt_Check(lhs));
-    assert(rhs->cls == float_cls);
+    assert(PyFloat_Check(rhs));
 
     if (rhs->d == 0) {
         raiseExcHelper(ZeroDivisionError, "float divide by zero");
@@ -623,7 +623,7 @@ extern "C" Box* intDiv(BoxedInt* lhs, Box* rhs) {
 
     if (PyInt_Check(rhs)) {
         return intDivInt(lhs, static_cast<BoxedInt*>(rhs));
-    } else if (rhs->cls == float_cls) {
+    } else if (PyFloat_Check(rhs)) {
         return intDivFloat(lhs, static_cast<BoxedFloat*>(rhs));
     } else {
         return incref(NotImplemented);
@@ -650,7 +650,7 @@ extern "C" Box* intFloordivInt(BoxedInt* lhs, BoxedInt* rhs) {
 
 extern "C" Box* intFloordivFloat(BoxedInt* lhs, BoxedFloat* rhs) {
     assert(PyInt_Check(lhs));
-    assert(rhs->cls == float_cls);
+    assert(PyFloat_Check(rhs));
 
     if (rhs->d == 0) {
         raiseExcHelper(ZeroDivisionError, "float divide by zero");
@@ -665,7 +665,7 @@ extern "C" Box* intFloordiv(BoxedInt* lhs, Box* rhs) {
 
     if (PyInt_Check(rhs)) {
         return intFloordivInt(lhs, static_cast<BoxedInt*>(rhs));
-    } else if (rhs->cls == float_cls) {
+    } else if (PyFloat_Check(rhs)) {
         return intFloordivFloat(lhs, static_cast<BoxedFloat*>(rhs));
     } else {
         return incref(NotImplemented);
@@ -696,7 +696,7 @@ extern "C" Box* intTruedivInt(BoxedInt* lhs, BoxedInt* rhs) {
 
 extern "C" Box* intTruedivFloat(BoxedInt* lhs, BoxedFloat* rhs) {
     assert(PyInt_Check(lhs));
-    assert(rhs->cls == float_cls);
+    assert(PyFloat_Check(rhs));
 
     if (rhs->d == 0) {
         raiseExcHelper(ZeroDivisionError, "division by zero");
@@ -711,7 +711,7 @@ extern "C" Box* intTruediv(BoxedInt* lhs, Box* rhs) {
 
     if (PyInt_Check(rhs)) {
         return intTruedivInt(lhs, static_cast<BoxedInt*>(rhs));
-    } else if (rhs->cls == float_cls) {
+    } else if (PyFloat_Check(rhs)) {
         return intTruedivFloat(lhs, static_cast<BoxedFloat*>(rhs));
     } else {
         return incref(NotImplemented);
@@ -751,7 +751,7 @@ extern "C" Box* intLShift(BoxedInt* lhs, Box* rhs) {
         raiseExcHelper(TypeError, "descriptor '__lshift__' requires a 'int' object but received a '%s'",
                        getTypeName(lhs));
 
-    if (rhs->cls == long_cls)
+    if (PyLong_Check(rhs))
         return longLShiftLong(autoDecref(boxLong(lhs->n)), rhs);
 
     if (!PyInt_Check(rhs)) {
@@ -847,7 +847,7 @@ extern "C" Box* intMulInt(BoxedInt* lhs, BoxedInt* rhs) {
 
 extern "C" Box* intMulFloat(BoxedInt* lhs, BoxedFloat* rhs) {
     assert(PyInt_Check(lhs));
-    assert(rhs->cls == float_cls);
+    assert(PyFloat_Check(rhs));
     return boxFloat(lhs->n * rhs->d);
 }
 
@@ -858,7 +858,7 @@ extern "C" Box* intMul(BoxedInt* lhs, Box* rhs) {
     if (PyInt_Check(rhs)) {
         BoxedInt* rhs_int = static_cast<BoxedInt*>(rhs);
         return intMulInt(lhs, rhs_int);
-    } else if (rhs->cls == float_cls) {
+    } else if (PyFloat_Check(rhs)) {
         BoxedFloat* rhs_float = static_cast<BoxedFloat*>(rhs);
         return intMulFloat(lhs, rhs_float);
     } else {
@@ -896,7 +896,7 @@ extern "C" Box* intPowLong(BoxedInt* lhs, BoxedLong* rhs, Box* mod) {
 
 extern "C" Box* intPowFloat(BoxedInt* lhs, BoxedFloat* rhs, Box* mod) {
     assert(PyInt_Check(lhs));
-    assert(rhs->cls == float_cls);
+    assert(PyFloat_Check(rhs));
 
     if (mod != None) {
         raiseExcHelper(TypeError, "pow() 3rd argument not allowed unless all arguments are integers");
@@ -964,7 +964,7 @@ extern "C" Box* intRShift(BoxedInt* lhs, Box* rhs) {
         raiseExcHelper(TypeError, "descriptor '__rshift__' requires a 'int' object but received a '%s'",
                        getTypeName(lhs));
 
-    if (rhs->cls == long_cls)
+    if (PyLong_Check(rhs))
         return longRShiftLong(autoDecref(boxLong(lhs->n)), rhs);
 
     if (!PyInt_Check(rhs)) {
@@ -994,7 +994,7 @@ extern "C" Box* intSubInt(BoxedInt* lhs, BoxedInt* rhs) {
 
 extern "C" Box* intSubFloat(BoxedInt* lhs, BoxedFloat* rhs) {
     assert(PyInt_Check(lhs));
-    assert(rhs->cls == float_cls);
+    assert(PyFloat_Check(rhs));
     return boxFloat(lhs->n - rhs->d);
 }
 
@@ -1005,7 +1005,7 @@ extern "C" Box* intSub(BoxedInt* lhs, Box* rhs) {
     if (PyInt_Check(rhs)) {
         BoxedInt* rhs_int = static_cast<BoxedInt*>(rhs);
         return intSubInt(lhs, rhs_int);
-    } else if (rhs->cls == float_cls) {
+    } else if (PyFloat_Check(rhs)) {
         BoxedFloat* rhs_float = static_cast<BoxedFloat*>(rhs);
         return intSubFloat(lhs, rhs_float);
     } else {

test/integration/numpy_patch.patch

-diff --git a/numpy/__init__.py b/numpy/__init__.py
-index d4ef54d..7a49dbd 100644
---- a/numpy/__init__.py
-+++ b/numpy/__init__.py
-@@ -196,7 +196,7 @@ else:
-     from . import linalg
-     from . import fft
-     from . import polynomial
--    from . import random
-+    # from . import random
-     from . import ctypeslib
-     from . import ma
-     from . import matrixlib as _mat
-@@ -218,7 +218,8 @@ else:
-     __all__.extend(core.__all__)
-     __all__.extend(_mat.__all__)
-     __all__.extend(lib.__all__)
--    __all__.extend(['linalg', 'fft', 'random', 'ctypeslib', 'ma'])
-+    __all__.extend(['linalg', 'fft', 'ctypeslib', 'ma'])
-+    # __all__.extend(['linalg', 'fft', 'random', 'ctypeslib', 'ma'])
- 
-     # Filter annoying Cython warnings that serve no good purpose.
-     import warnings
 diff --git a/numpy/core/include/numpy/ndarrayobject.h b/numpy/core/include/numpy/ndarrayobject.h
 index fbaaeac..cb4adbb 100644
 --- a/numpy/core/include/numpy/ndarrayobject.h
@@ -193,20 +170,6 @@ index 7797731..93edc66 100644
      return NULL;
  }
  
-diff --git a/numpy/core/tests/test_function_base.py b/numpy/core/tests/test_function_base.py
-index 2df7ba3..88fac0a 100644
---- a/numpy/core/tests/test_function_base.py
-+++ b/numpy/core/tests/test_function_base.py
-@@ -113,7 +113,8 @@ class TestLinspace(TestCase):
- 
-         a = PhysicalQuantity(0.0)
-         b = PhysicalQuantity(1.0)
--        assert_equal(linspace(a, b), linspace(0.0, 1.0))
-+        # TODO: Need to support operations on inherited floats like divide.
-+        # assert_equal(linspace(a, b), linspace(0.0, 1.0))
- 
-     def test_denormal_numbers(self):
-         # Regression test for gh-5437. Will probably fail when compiled
 diff --git a/numpy/core/tests/test_records.py b/numpy/core/tests/test_records.py
 index 7a18f29..a8d4e4b 100644
 --- a/numpy/core/tests/test_records.py
@@ -282,40 +245,3 @@ index dba74d3..23cfeed 100644
  
      def test_masked_array_repeat(self, level=rlevel):
          # Ticket #271
-diff --git a/numpy/random/setup.py b/numpy/random/setup.py
-index 9d90590..b3ee24f 100644
---- a/numpy/random/setup.py
-+++ b/numpy/random/setup.py
-@@ -39,18 +39,6 @@ def configuration(parent_package='',top_path=None):
- 
-     libs = []
-     # Configure mtrand
--    config.add_extension('mtrand',
--                         sources=[join('mtrand', x) for x in
--                                  ['mtrand.c', 'randomkit.c', 'initarray.c',
--                                   'distributions.c']]+[generate_libraries],
--                         libraries=libs,
--                         depends=[join('mtrand', '*.h'),
--                                  join('mtrand', '*.pyx'),
--                                  join('mtrand', '*.pxi'),],
--                         define_macros=defs,
--                         )
--
--    config.add_data_files(('.', join('mtrand', 'randomkit.h')))
-     config.add_data_dir('tests')
- 
-     return config
-diff --git a/setup.py b/setup.py
-index 90dcb24..943851a 100755
---- a/setup.py
-+++ b/setup.py
-@@ -245,7 +245,8 @@ def setup_package():
-         cwd = os.path.abspath(os.path.dirname(__file__))
-         if not os.path.exists(os.path.join(cwd, 'PKG-INFO')):
-             # Generate Cython sources, unless building from source release
--            generate_cython()
-+            # generate_cython()
-+            pass
-         metadata['configuration'] = configuration
- 
-     try:

test/tests/future_division.py

@@ -22,3 +22,19 @@ test(-3.0, -2.0)
 test(1.0 + 1.0j, 2)
 test(1.0 + 1.0j, 2.0)
 test(1.0 + 1.0j, 2.0j)
+
+class PhysicalQuantity(float):
+    def __new__(cls, value):
+        return float.__new__(cls, value)
+
+    def __div__(self, x):
+        print('__div__ get called')
+        return PhysicalQuantity(float(self) / float(x))
+
+    def __rdiv__(self, x):
+        print('__rdiv__ get called')
+        return PhysicalQuantity(float(x) / float(self))
+
+a = PhysicalQuantity(2.0)
+
+print(a / 3.0)