private static Func <TAttribute, IValueProvider> BuildICollectorArgument <TAttribute, TMessage, TMessageSrc>(
IConverterManager cm,
Func <TAttribute, IAsyncCollector <TMessage> > buildFromAttribute,
AttributeCloner <TAttribute> cloner)
where TAttribute : Attribute
{
// Other
Func <TMessageSrc, TAttribute, TMessage> convert = cm.GetConverter <TMessageSrc, TMessage, TAttribute>();
if (convert == null)
{
ThrowMissingConversionError(typeof(TMessageSrc));
}
Func <TAttribute, IValueProvider> argumentBuilder = (attrResolved) =>
{
IAsyncCollector <TMessage> raw = buildFromAttribute(attrResolved);
IAsyncCollector <TMessageSrc> obj = new TypedAsyncCollectorAdapter <TMessageSrc, TMessage, TAttribute>(
raw, convert, attrResolved);
ICollector <TMessageSrc> obj2 = new SyncAsyncCollectorAdapter <TMessageSrc>(obj);
string invokeString = cloner.GetInvokeString(attrResolved);
return(new AsyncCollectorValueProvider <ICollector <TMessageSrc>, TMessage>(obj2, raw, invokeString));
};
return(argumentBuilder);
}
protected override Task <IValueProvider> BuildAsync(
TAttribute attrResolved,
ValueBindingContext context)
{
string invokeString = Cloner.GetInvokeString(attrResolved);
object obj = _buildFromAttribute(attrResolved);
IAsyncCollector <TMessage> collector;
if (_converter != null)
{
// Apply a converter
var innerCollector = (IAsyncCollector <TType>)obj;
collector = new TypedAsyncCollectorAdapter <TMessage, TType, TAttribute>(
innerCollector, _converter, attrResolved, context);
}
else
{
collector = (IAsyncCollector <TMessage>)obj;
}
var vp = CoerceValueProvider(_mode, invokeString, collector);
return(Task.FromResult(vp));
}
// Helper to build an argument binder for IAsyncCollector<TMessageSrc>
private static Func <TContext, ValueBindingContext, IValueProvider> BuildIAsyncCollectorArgument <TContext, TMessageSrc, TMessage>(
IConverterManager cm,
Func <TContext, ValueBindingContext, IAsyncCollector <TMessage> > builder,
string invokeString)
{
Func <TMessageSrc, TMessage> convert = cm.GetConverter <TMessageSrc, TMessage>();
Func <TContext, ValueBindingContext, IValueProvider> argumentBuilder = (context, valueBindingContext) =>
{
IAsyncCollector <TMessage> raw = builder(context, valueBindingContext);
IAsyncCollector <TMessageSrc> obj = new TypedAsyncCollectorAdapter <TMessageSrc, TMessage>(raw, convert);
return(new AsyncCollectorValueProvider <IAsyncCollector <TMessageSrc>, TMessage>(obj, raw, invokeString));
};
return(argumentBuilder);
}
private static Func <TAttribute, IValueProvider> BuildOutArrayArgument <TAttribute, TMessage, TMessageSrc>(
IConverterManager cm,
Func <TAttribute, IAsyncCollector <TMessage> > buildFromAttribute,
AttributeCloner <TAttribute> cloner)
where TAttribute : Attribute
{
// Other
Func <TMessageSrc, TAttribute, TMessage> convert = cm.GetConverter <TMessageSrc, TMessage, TAttribute>();
Func <TAttribute, IValueProvider> argumentBuilder = (attrResolved) =>
{
IAsyncCollector <TMessage> raw = buildFromAttribute(attrResolved);
IAsyncCollector <TMessageSrc> obj = new TypedAsyncCollectorAdapter <TMessageSrc, TMessage, TAttribute>(
raw, convert, attrResolved);
string invokeString = cloner.GetInvokeString(attrResolved);
return(new OutArrayValueProvider <TMessageSrc>(obj, invokeString));
};
return(argumentBuilder);
}
