public static ReflectedFrame Create <T>(TaskMaster task_master, T backing,
IDictionary <string, Func <T, object> > accessors)
{
var attributes = accessors.ToDictionary(pair => pair.Key, pair => {
object result = pair.Value(backing);
if (result == null)
{
result = Unit.NULL;
}
else if (result is Boolean || result is Double ||
result is Int64 || result is Frame ||
result is Stringish ||
result is Template || result is Unit)
{
}
else if (result is string)
{
result = new SimpleStringish((String)result);
}
else
{
throw new InvalidCastException("Value for " + pair.Key
+ " is non-Flabbergast type "
+ result.GetType() + ".");
}
return(result);
});
return(new ReflectedFrame(task_master, new ClrSourceReference(),
backing, attributes));
}
protected override bool Run()
{
if (input == null)
{
Computation input_lookup = new Lookup(task_master, source_reference, new [] { "arg" }, context);
input_lookup.Notify(input_result => {
if (input_result is byte[])
{
input = (byte[])input_result;
if (Interlocked.Decrement(ref interlock) == 0)
{
task_master.Slot(this);
}
}
else
{
task_master.ReportOtherError(source_reference, "Input argument must be a Bin.");
}
});
Computation encoding_lookup = new Lookup(task_master, source_reference, new [] { "encoding" }, context);
encoding_lookup.Notify(encoding_result => {
if (encoding_result is long)
{
var index = (long)encoding_result;
if (index >= 0 && index < encodings.Length)
{
encoding = encodings[index];
if (Interlocked.Decrement(ref interlock) == 0)
{
task_master.Slot(this);
return;
}
}
}
task_master.ReportOtherError(source_reference, "Invalid encoding.");
});
if (Interlocked.Decrement(ref interlock) > 0)
{
return(false);
}
}
try {
result = new SimpleStringish(encoding.GetString(input));
return(true);
} catch (DecoderFallbackException e) {
task_master.ReportOtherError(source_reference, String.Format("Cannot decode byte {0}.", e.Index));
return(false);
}
}
public void Add(string name, string val)
{
attributes[name] = new SimpleStringish(val);
}