Cypclass operator overloading

Cython/Compiler/ExprNodes.py

@@ -11383,6 +11383,8 @@ class NumBinopNode(BinopNode):
                 result1, result2 = self.operand1.pythran_result(), self.operand2.pythran_result()
             else:
                 result1, result2 = self.operand1.result(), self.operand2.result()
+            if self.operand1.type.is_cyp_class:
+                result1 = '*' + result1
             return "(%s %s %s)" % (result1, self.operator, result2)
         else:
             func = self.type.binary_op(self.operator)
@@ -11701,6 +11703,8 @@ class DivNode(NumBinopNode):
                     op1 = self.type.cast_code(op1)
                 if self.type != self.operand2.type:
                     op2 = self.type.cast_code(op2)
+            if self.operand1.type.is_cyp_class:
+                op1 = "*(%s)" % op1
             return "(%s / %s)" % (op1, op2)
         else:
             return "__Pyx_div_%s(%s, %s)" % (
@@ -11788,8 +11792,11 @@ class ModNode(DivNode):
                     self.operand1.result(),
                     self.operand2.result())
             else:
+                op1 = self.operand1.result()
+                if self.operand1.type.is_cyp_class:
+                    op1 = '*' + op1
                 return "(%s %% %s)" % (
-                    self.operand1.result(),
+                    op1,
                     self.operand2.result())
         else:
             return "__Pyx_mod_%s(%s, %s)" % (
@@ -11856,9 +11863,12 @@ class PowNode(NumBinopNode):
                 return operand.result()
             else:
                 return self.type.cast_code(operand.result())
+        op1 = typecast(self.operand1)
+        if self.operand1.type.is_cyp_class:
+            op1 = '*' + op1
         return "%s(%s, %s)" % (
             self.pow_func,
-            typecast(self.operand1),
+            op1,
             typecast(self.operand2))
 
     def py_operation_function(self, code):
@@ -12805,6 +12815,8 @@ class PrimaryCmpNode(ExprNode, CmpNode):
                 result1, result2 = operand1.pythran_result(), operand2.pythran_result()
             else:
                 result1, result2 = operand1.result(), operand2.result()
+                if operand1.type.is_cyp_class:
+                    result1 = '*' + result1
                 if self.is_memslice_nonecheck:
                     if operand1.type.is_memoryviewslice:
                         result1 = "((PyObject *) %s.memview)" % result1

Cython/Compiler/Nodes.py

@@ -5908,7 +5908,10 @@ class InPlaceAssignmentNode(AssignmentNode):
         else:
             # C++
             # TODO: make sure overload is declared
-            code.putln("%s %s= %s;" % (lhs.result(), c_op, rhs.result()))
+            l_op = lhs.result()
+            if lhs.type.is_cyp_class:
+                l_op = '*' + l_op
+            code.putln("%s %s= %s;" % (l_op, c_op, rhs.result()))
         lhs.generate_subexpr_disposal_code(code)
         lhs.free_subexpr_temps(code)
         rhs.generate_disposal_code(code)

Cython/Compiler/Symtab.py

@@ -2424,6 +2424,28 @@ class CppClassScope(Scope):
     default_constructor = None
     type = None
 
+    operator_table = {
+        '__add__': '+', '__iadd__': '+=',
+        '__sub__': '-', '__isub__': '-=',
+        '__mul__': '*', '__imul__': '*=',
+        '__div__': '/', '__idiv__': '/=',
+        '__mod__': '%', '__imod__': '%=',
+        '__lshift__': '<<', '__ilshift__': '<<=',
+        '__rshift__': '>>', '__irshift__': '>>=',
+        '__and__': '&', '__iand__': '&=',
+        '__or__': '|', '__ior__': '|=',
+        '__xor__': '^', '__ixor__': '^=',
+        '__neg__': '-',
+        '__pos__': '+',
+        '__invert__': '~',
+        '__eq__': '==',
+        '__ne__': '!=',
+        '__lt__': '<',
+        '__gt__': '>',
+        '__le__': '<=',
+        '__ge__': '>='
+    }
+
     def __init__(self, name, outer_scope, templates=None):
         Scope.__init__(self, name, outer_scope, None)
         self.directives = outer_scope.directives