public override bool TryGetMember(GetMemberBinder binder, out object result)
{
try
{
var propIdx = _context.FindProperty(binder.Name);
if (!_context.IsPropReadable(propIdx))
{
result = null;
return(false);
}
result = CustomMarshaller.ConvertToDynamicCLRObject(_context.GetPropValue(propIdx));
return(true);
}
catch (PropertyAccessException)
{
result = null;
return(false);
}
catch (ValueMarshallingException)
{
result = null;
return(false);
}
}
public override bool TryGetIndex(GetIndexBinder binder, object[] indexes, out object result)
{
if (!_context.IsIndexed)
{
result = null;
return(false);
}
var index = CustomMarshaller.ConvertReturnValue(indexes[0], indexes[0].GetType());
result = CustomMarshaller.ConvertToDynamicCLRObject(_context.GetIndexedValue(index));
return(true);
}
public IEnumerator GetEnumerator()
{
if (!(_context is IEnumerable <IValue>))
{
throw RuntimeException.IteratorIsNotDefined();
}
var enumer = (IEnumerable <IValue>)_context;
foreach (var iValue in enumer)
{
yield return(CustomMarshaller.ConvertToDynamicCLRObject(iValue));
}
}
public override bool TryInvokeMember(InvokeMemberBinder binder, object[] args, out object result)
{
int methIdx;
try
{
methIdx = _context.FindMethod(binder.Name);
}
catch (MethodAccessException)
{
result = null;
return(false);
}
var valueArgs = args.Select(x => CustomMarshaller.ConvertReturnValue(x, x.GetType())).ToArray();
IValue methResult;
_context.CallAsFunction(methIdx, valueArgs, out methResult);
result = CustomMarshaller.ConvertToDynamicCLRObject(methResult);
return(true);
}
public override bool TryInvokeMember(InvokeMemberBinder binder, object[] args, out object result)
{
int methIdx;
try
{
methIdx = _context.FindMethod(binder.Name);
}
catch (MethodAccessException)
{
result = null;
return(false);
}
var methInfo = _context.GetMethodInfo(methIdx);
var valueArgs = new IValue[methInfo.Params.Length];
var passedArgs = args.Select(x => CustomMarshaller.ConvertReturnValue(x, x.GetType())).ToArray();
for (int i = 0; i < valueArgs.Length; i++)
{
if (i < passedArgs.Length)
{
valueArgs[i] = passedArgs[i];
}
else
{
valueArgs[i] = ValueFactory.CreateInvalidValueMarker();
}
}
IValue methResult;
_context.CallAsFunction(methIdx, valueArgs, out methResult);
result = methResult == null? null : CustomMarshaller.ConvertToDynamicCLRObject(methResult);
return(true);
}