public static T To <T>(this IConvertible value)
{
try
{
Type t = typeof(T);
Type u = Nullable.GetUnderlyingType(t);
if (u != null)
{
if (value == null || value.Equals(""))
{
return(default(T));
}
return((T)Convert.ChangeType(value, u));
}
if (value == null || value.Equals(""))
{
return(default(T));
}
return((T)Convert.ChangeType(value, t));
}
catch
{
return(default(T));
}
}
public static T To <T>(this IConvertible value, IConvertible ifError)
{
try
{
Type t = typeof(T);
Type u = Nullable.GetUnderlyingType(t);
if (u != null)
{
if (value == null || value.Equals(""))
{
return((T)ifError);
}
return((T)Convert.ChangeType(value, u));
}
else
{
if (value == null || value.Equals(""))
{
return((T)(ifError.To <T>()));
}
return((T)Convert.ChangeType(value, t));
}
}
catch
{
return((T)ifError);
}
}
public static T ConvertTo <T>(this IConvertible convertibleValue)
{
if (null == convertibleValue || convertibleValue.Equals(string.Empty))
{
return(default(T));
}
if (!typeof(T).IsGenericType)
{
return((T)Convert.ChangeType(convertibleValue, typeof(T)));
}
else
{
Type genericTypeDefinition = typeof(T).GetGenericTypeDefinition();
if (genericTypeDefinition == typeof(Nullable <>))
{
return((T)Convert.ChangeType(convertibleValue, Nullable.GetUnderlyingType(typeof(T))));
}
}
throw new InvalidCastException(string.Format("Invalid cast from type \"{0}\" to type \"{1}\".", convertibleValue.GetType().FullName, typeof(T).FullName));
}
/// <summary>
/// Converts one type to another
/// </summary>
/// <example>
/// var age = "28";
/// var intAge = age.To<int>(-1);
/// var doubleAge = intAge.To<double>(-1);
/// var decimalAge = doubleAge.To<decimal>(-1);
/// </example>
/// <typeparam name="T">Type to convert to</typeparam>
/// <param name="value">Item to convert</param>
/// <param name="ifError">Value to return if there is an error</param>
/// <returns></returns>
public static T ConvertTo <T>(this IConvertible value, T ifError)
{
try
{
if (value == null || value.Equals(""))
{
return(ifError);
}
Type t = typeof(T);
Type u = Nullable.GetUnderlyingType(t);
return(u != null
? (T)Convert.ChangeType(value, u)
: (T)Convert.ChangeType(value, t));
}
catch
{
return(ifError);
}
}
public static T To <T>(this IConvertible value)
where T : new()
{
_ = value ?? throw new ArgumentNullException(nameof(value));
try
{
if (value.Equals(string.Empty))
{
return(new T());
}
var t = typeof(T);
var u = Nullable.GetUnderlyingType(t);
return(u != null ? (T)Convert.ChangeType(value, u, CultureInfo.CurrentCulture) : (T)Convert.ChangeType(value, t, CultureInfo.CurrentCulture));
}
catch
{
return(new T());
}
}
public static bool Equals <T1, T2>(T1 first, T2 second)
{
try
{
IConvertible firstConveted = CastToConvertible(first);
IConvertible secondConverted = CastToConvertible(second);
// standard Equals cannot compare two different types,
// so here the second value is
// converted to the type of the first value
var convertedToFirst = (IConvertible)Convert.ChangeType(
secondConverted, firstConveted.GetTypeCode());
return(firstConveted.Equals(convertedToFirst));
}
catch (Exception)
{
// an exception might be caught in two cases:
// 1. One of the values cannot be converted
// to IConvertible interface.
// 2. The second value cannot be converted
// to the type of the first value.
return(false);
}
}
override protected void EvaluateOutputs()
{
if (ShouldOutput())
{
outputPorts[0].Value = queue.Dequeue().value;
EmitEvaluationRequired();
}
else
{
outputPorts[0].Value = null;
}
IConvertible value = InValue(0);
if (object.ReferenceEquals(value, lastInput) || (!object.ReferenceEquals(value, null) && value.Equals(lastInput)))
{
return;
}
lastInput = value;
if (!ValueToBool(value))
{
return;
}
int delay = Math.Max(1, InInt(1));
int outputTick = Manager.CurrentTick + delay;
QueueEntry entry = new QueueEntry(outputTick, value);
if (queue.Count >= queue.MaxSize)
{
queue.Dequeue();
}
queue.Enqueue(entry, outputTick);
}
private object ExecuteBooleanOperator(IConvertible left, IConvertible right, CodeBinaryOperatorType op)
{
bool flag = false;
switch (op)
{
case CodeBinaryOperatorType.IdentityInequality:
return (left != right);
case CodeBinaryOperatorType.IdentityEquality:
return (left == right);
case CodeBinaryOperatorType.ValueEquality:
return left.Equals(right);
case CodeBinaryOperatorType.BitwiseOr:
case CodeBinaryOperatorType.BitwiseAnd:
case CodeBinaryOperatorType.LessThan:
case CodeBinaryOperatorType.LessThanOrEqual:
case CodeBinaryOperatorType.GreaterThan:
case CodeBinaryOperatorType.GreaterThanOrEqual:
return flag;
case CodeBinaryOperatorType.BooleanOr:
return (left.ToBoolean(null) || right.ToBoolean(null));
case CodeBinaryOperatorType.BooleanAnd:
return (left.ToBoolean(null) && right.ToBoolean(null));
}
return flag;
}
