private static ExecuteQueryFunc <Object> CreateDelegate(Type elementType, ExecuteQueryFunc <Object> execFunc)
{
MethodInfo execMethodInfo = execFunc.GetMethodInfo().GetGenericMethodDefinition().MakeGenericMethod(elementType);
var execFuncType = execFunc.GetType().GetGenericTypeDefinition().MakeGenericType(elementType);
return((ExecuteQueryFunc <Object>)execMethodInfo.CreateDelegate(execFuncType));
}
private async Task <IList> ExecuteOe <T, TResult>(LambdaExpression lambda, int maxPageSize)
{
Container container = CreateContainer(maxPageSize);
var visitor = new TypeMapperVisitor(container)
{
TypeMap = t => Type.GetType("ODataClient." + t.FullName)
};
var call = visitor.Visit(lambda.Body);
IQueryable query = GetQuerableOe(container, typeof(T));
Type elementType;
if (call.Type.GetTypeInfo().IsGenericType)
{
elementType = call.Type.GetGenericArguments()[0];
ExecuteQueryFuncAsync <Object> func = ExecuteQueryAsync <Object>;
return(await CreateDelegate(elementType, func)(query, call, visitor.NavigationPropertyAccessors));
}
else
{
elementType = typeof(Object);
ExecuteQueryFunc <Object> func = ExecuteQueryScalar <Object>;
return(CreateDelegate(elementType, func)(query, call));
}
}
