public void CreateBooleanAnd()
{
Expression expression = factory.CreateExpression(
factory.CreateComparationEqual(factory.CreateFieldNode("FIELD"),
factory.CreateValueNode("VALUE", ValueNodeType.Text)));
BooleanAnd and = factory.CreateBooleanAnd(expression, expression);
Assert.IsNotNull(and);
Assert.IsInstanceOfType(typeof(BooleanAnd), and);
Assert.IsInstanceOfType(typeof(Expression), and.LeftNode);
Assert.IsInstanceOfType(typeof(Expression), and.RightNode);
}
/// <summary>
/// BOOLEAN Operation expression Rule
/// | BooleanRule
/// | BooleanRule AND BooleanOperatorRule
/// | BooleanRule OR BooleanOperatorRule
/// <returns></returns>
private Expression BooleanOperatorRule()
{
Expression booleanExp = BooleanRule();
_token = _scanner.GetToken();
switch (_token.Ttype)
{
case TokenType.AND:
return(_astFactory.CreateBooleanAnd(booleanExp,
BooleanOperatorRule()));
case TokenType.OR:
return(_astFactory.CreateBooleanOr(booleanExp,
BooleanOperatorRule()));
case TokenType.RIGHT_PARENTHESIS:
_parenthesisDepth--;
break;
}
return(booleanExp);
}