Task <TResult> IHubProxyOneWay <TServerHubInterface> .CallAsync <TResult>(
Expression <Func <TServerHubInterface, Task <TResult> > > call)
{
ActionDetail invocation = call.GetActionDetails();
return(_hubProxy.Invoke <TResult>(invocation.MethodName, invocation.Parameters));
}
Task IHubProxyOneWay <TServerHubInterface> .CallAsync(
Expression <Action <TServerHubInterface> > call)
{
ActionDetail invocation = call.GetActionDetails();
return(_hubProxy.Invoke(invocation.MethodName, invocation.Parameters));
}
internal static ActionDetail GetActionDetails <T>(this Expression <Action <T> > action)
{
if (!(action.Body is MethodCallExpression))
{
throw new ArgumentException(ERR_ACTION_MUST_BE_METHODCALL, "action");
}
var callExpression = (MethodCallExpression)action.Body;
var actionDetail = new ActionDetail
{
MethodName = callExpression.Method.Name,
Parameters = callExpression.Arguments.Select(ConvertToConstant).ToArray(),
};
return(actionDetail);
}
internal static ActionDetail GetActionDetails <TInput, TResult>(this Expression <Func <TInput, TResult> > action)
{
if (!(action.Body is MethodCallExpression))
{
throw new ArgumentException(ERR_ACTION_MUST_BE_METHODCALL, nameof(action));
}
var callExpression = (MethodCallExpression)action.Body;
var actionDetail = new ActionDetail
{
MethodName = callExpression.Method.Name,
Parameters = callExpression.Arguments.Select(ConvertToConstant).ToArray(),
ReturnType = typeof(TResult)
};
return(actionDetail);
}
