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Description of Issue: System.Linq.Expressions are missing some .NET types like DefaultExpression
Microsoft API Link: http://msdn.microsoft.com/en-us/library/bb506649(v=vs.100).aspx
Our API Link: http://iosapi.xamarin.com/?link=N%3aSystem.Linq.Expressions
=== Xamarin Studio ===
Version 4.1.2 (build 2)
Installation UUID: 092b839b-e4ba-41d0-8ccc-a3bdbc960f0d
Mono 3.0.10 ((no/eff4cb5)
Package version: 300100000
=== Xamarin.Android ===
Android SDK: /Users/ddunkin/Library/Developer/Xamarin/android-sdk-mac_x86
Supported Android versions:
2.1 (API level 7)
2.2 (API level 8)
2.3 (API level 10)
3.1 (API level 12)
4.0 (API level 14)
4.0.3 (API level 15)
Java SDK: /usr
=== Apple Developer Tools ===
Xcode 4.6.2 (2067.2)
=== Xamarin.Mac ===
Xamarin.Mac: Not Installed
=== Xamarin.iOS ===
Version: 18.104.22.168 (Business Edition)
Build date: 2013-11-04 10:49:08-0400
=== Build Information ===
Release ID: 401020002
Git revision: 0fb88a5b486ca8644238e49de32b5c5eb983305d
Build date: 2013-05-06 20:35:00+0000
Xamarin addins: 59d33fcc272e0d0f7211811131eb05d1f994a6b4
=== Operating System ===
Mac OS X 10.8.3
Darwin WS1681.local 12.3.0 Darwin Kernel Version 12.3.0
Sun Jan 6 22:37:10 PST 2013
Pierce what code depends on this?
Autofac, an IoC container we use, requires these types. Specifically, Autofac.Features.Metadata.MetadataViewProvider uses:
Just a couple short comments to add a little activity to this bug report.
- The problem is specific to Xamarin.iOS because these Expression methods are defined in the Dynamic Language Runtime portion of Mono , and that part is omitted completely on Xamarin.iOS to avoid System.Reflection.Emit.
>  https://github.com/mono/mono/blob/master/mcs/class/dlr/Runtime/Microsoft.Scripting.Core/Ast/ParameterExpression.cs
On the other hand, Xamarin.Android 4.10.1 does include these Expression methods. Perhaps more of the Expression methods can be re-written or maybe even just moved out of the DLR, and then added to Xamarin.iOS?
- From another user, regarding the usefulness of expanding Expression support on iOS:
Currently, the only DI/IoC container known to work on iOS is TinyIoc, but it's very primitive. DI containers use Expressions a lot to get strong typing, etc.
This should be fixed in upcoming XI release.