Bug 58 - Mobile profile is missing many .NET 4.0 APIs
Summary: Mobile profile is missing many .NET 4.0 APIs
Alias: None
Product: iOS
Classification: Xamarin
Component: Xamarin.iOS.dll ()
Version: 4.x
Hardware: PC Linux
: --- enhancement
Target Milestone: Untriaged
Assignee: Bugzilla
Depends on:
Reported: 2011-07-25 10:06 UTC by Miguel de Icaza [MSFT]
Modified: 2015-04-16 10:44 UTC (History)
3 users (show)

Is this bug a regression?: ---
Last known good build:

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Description Miguel de Icaza [MSFT] 2011-07-25 10:06:52 UTC
The MOBILE profile is supposed to be the .NET 4.0 API, minus anything that brings the System.Configuration bloat or things that would introduce big dependencies that are hard to link out.

There is a problem with the use of covariant and contravariant interfaces now, so adopting everything as a whole might be complicated.    But there are a handful of APIs that are worth brining step-by-step.

We need to audit the library to ensure that all of the new 4.0 stuff makes it into our mobile products.

A few simple things that we are missing:

From a customer feature request:
* IObservable
* IObserver

Long-term, we should switch the mobile profiler to use C# 4 and the coveriant/contravariant contracts.
Comment 1 Rodrigo Kumpera 2011-07-29 12:54:09 UTC
Given JIT'd mono uses the same machinery of virtual generic methods. We might, by luck, be able to support them once variance is.
Comment 2 Miguel de Icaza [MSFT] 2011-07-29 13:11:44 UTC
Could you research the covariance/contravariance setup for AOT builds?
Comment 3 Rolf Bjarne Kvinge [MSFT] 2015-04-16 10:44:40 UTC
This was fixed a long time ago.