/// <summary>
/// run step 123.
/// </summary>
/// <returns></returns>
public override Expr Parse()
{
// 1. move past "of"
_tokenIt.Advance(2);
var anyofExpr = new AnyOfExpr();
anyofExpr.Ctx = this.Ctx;
anyofExpr.ParamListExpressions = new List<Expr>();
anyofExpr.ParamList = new List<object>();
// 2. any of ( <expression>* )
if (_tokenIt.NextToken.Token == Tokens.LeftParenthesis)
{
_parser.ParseParameters(anyofExpr, true, true, false);
}
else
{
_parser.ParseParameters(anyofExpr, false, true, true);
}
return anyofExpr;
}
/// <summary>
/// Visit the anyof expression.
/// </summary>
/// <param name="expr">AnyOf expression.</param>
/// <returns></returns>
public object VisitAnyOf(AnyOfExpr expr)
{
var result = false;
var leftExpr = expr.CompareExpr;
var leftResult = leftExpr.Evaluate(this) as LObject;
if (expr.ParamListExpressions == null || expr.ParamListExpressions.Count == 0)
return new LBool(result);
// Resolve the parameters.
ParamHelper.ResolveNonNamedParameters(expr.ParamListExpressions, expr.ParamList, this);
foreach (var rvalue in expr.ParamList)
{
var rightResult = rvalue as LObject;
var compareResult = EvalHelper.Compare(expr, Operator.EqualEqual, leftResult, rightResult) as LObject;
if (compareResult != null && compareResult.Type == LTypes.Bool && ((LBool)compareResult).Value == true)
{
result = true;
break;
}
}
return new LBool( result );
}
public object VisitAnyOf( AnyOfExpr expr )
{
return null;
}