public static bool TryParse(string content, int start, int length, out KirinNode result)
{
result = null;
if (!content.StartsWith(PreKeyword) || !content.EndsWith(PostKeyword))
{
return(false);
}
result = new KirinSwitchCase(start, length)
{
RawCase = content.Substring(PreKeyword.Length, content.Length - PreKeyword.Length - PostKeyword.Length)
};
return(true);
}
public override object Execute(FiMClass reportClass)
{
if (!this.Complete)
{
throw new FiMException("Executing an incomplete switch statement");
}
var variable = reportClass.GetVariable(this.RawVariable);
if (variable == null)
{
throw new FiMException("Varible " + this.RawVariable + " does not exist");
}
if (FiMHelper.IsTypeArray(variable))
{
throw new FiMException("Cannot use array on a switch");
}
Dictionary <object, string> CasesLookup = new Dictionary <object, string>();
foreach (var key in Cases.Keys)
{
if (!KirinSwitchCase.IsValidPlace(key, reportClass, out object value))
{
throw new FiMException("Invalid case " + key);
}
if (CasesLookup.Keys.Any(k => KirinValue.IsEqual(k, value)))
{
throw new FiMException("Duplicate case value " + key);
}
CasesLookup.Add(value, key);
}
KirinStatement s = DefaultCase;
if (CasesLookup.Keys.Any(k => KirinValue.IsEqual(k, variable.Value)))
{
s = Cases[CasesLookup.First(l => KirinValue.IsEqual(l.Key, variable.Value)).Value];
}
if (s != null)
{
return(s.Execute(reportClass));
}
return(null);
}