/// <summary>
/// rule_conditions :
/// key LEFT_PAREN arguments? RIGHT_PAREN
/// | NOT rule_conditions
/// | rule_conditions AND rule_conditions
/// | rule_conditions OR rule_conditions
/// | LEFT_PAREN rule_conditions RIGHT_PAREN
/// ;
/// </summary>
/// <param name="context"></param>
/// <returns></returns>
public override object VisitRule_conditions([NotNull] WorkflowParser.Rule_conditionsContext context)
{
ExpressionModel result = null;
var key = context.key();
if (key != null)
{
var k = (string)VisitKey(key);
var r1 = new RuleExpressionModel()
{
Key = k,
Reference = ResolveRule(k),
};
var args = context.arguments();
if (args != null)
{
var arguments = (List <(string, string)>)VisitArguments(args);
foreach (var argument in arguments)
{
r1.Arguments.Add(argument.Item1, argument.Item2);
}
}
result = r1;
}
else if (context.NOT() != null)
{
result = new NotExpressionModel()
{
Expression = (ExpressionModel)VisitRule_conditions(context.rule_conditions()[0])
}
}
;
else if (context.AND() != null)
{
result = new BinaryExpressionModel()
{
Left = (ExpressionModel)VisitRule_conditions(context.rule_conditions()[0]),
Operator = "AND",
Right = (ExpressionModel)VisitRule_conditions(context.rule_conditions()[1])
}
}
;
else if (context.OR() != null)
{
result = new BinaryExpressionModel()
{
Left = (ExpressionModel)VisitRule_conditions(context.rule_conditions()[0]),
Operator = "OR",
Right = (ExpressionModel)VisitRule_conditions(context.rule_conditions()[1])
}
}
;
else if (context.LEFT_PAREN() != null && context.RIGHT_PAREN() != null)
{
result = (ExpressionModel)VisitRule_conditions(context.rule_conditions()[0]);
}
return(result);
}