blob: 5981a6b5942c7ca352991e5c9f5db2696110c1d4 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
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 AndOperatorNode(BinaryOperatorNode):
def __init__(self, metadata, expression_type, left_expression, right_expression, value):
super(AndOperatorNode, 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 and self.right_expression.value
|
