1 files changed, 21 insertions, 0 deletions
diff --git a/ql/ast/nodes/expressions/binary_operators/or_operator.py b/ql/ast/nodes/expressions/binary_operators/or_operator.py
new file mode 100644
index 0000000..4314868
--- /dev/null
+++ b/ql/ast/nodes/expressions/binary_operators/or_operator.py
@@ -0,0 +1,21 @@
+from ql.ast.nodes.expressions.binary_operators.binary_operator import BinaryOperatorNode
+from ql.types.boolean import QLBoolean
+from ql.types.undefined import QLUndefined
+
+
+class OrOperatorNode(BinaryOperatorNode):
+    def __init__(self, metadata, expression_type, left_expression, right_expression, value):
+        super(OrOperatorNode, self).__init__(metadata, expression_type,
+                                             left_expression, right_expression, value)
+        self.__valid_types = {
+            (QLBoolean, QLBoolean): QLBoolean,
+        }
+
+    def get_result_type(self):
+        if self.__valid_types.get((self.left_expression.expression_type, self.right_expression.expression_type)):
+            return self.__valid_types.get((self.left_expression.expression_type, self.right_expression.expression_type))
+
+        return QLUndefined
+
+    def evaluate(self):
+        self.value = self.left_expression.value or self.right_expression.value