public IFieldReader <TItem> Get(Stem <TItem> stem)
{
var instanceMethod = _getInstanceReaderMethod.Invoke(stem);
if (instanceMethod is Func <TMiddle, TValue> delegateMethod)
{
return(new ExpressionMiddleDelegateFieldReader <TItem, TMiddle, TValue>(_middleExpression, delegateMethod));
}
throw new StemAttributeSetupException("Field instance method was invalid.");
}
public IFieldReader <TItem> Get(Stem <TItem> stem)
{
var instanceMethod = _getInstanceLocatorMethod.Invoke(stem);
if (instanceMethod is Func <Expression <Func <TItem, TValue> > > expressionMethod)
{
Expression <Func <TItem, TValue> > expression = expressionMethod.Invoke();
return(new ExpressionFieldReader <TItem, TValue>(expression));
}
if (instanceMethod is Func <TItem, TValue> delegateMethod)
{
return(new DelegateFieldReader <TItem, TValue>(delegateMethod));
}
throw new StemAttributeSetupException("Field instance method was invalid.");
}
public IFieldWriter <TItem> Get(Stem <TItem> stem)
{
var instanceMethod = (Action <TItem, TValue>)_getInstanceLocatorMethod.Invoke(stem);
return(new ActionFieldWriter <TItem, TValue>(instanceMethod));
}