Xcode 11 doesn't support anything below iOS 7.0 (the linker will automatically
change the deployment target to 7.0), so we need to drop support as well
(since our native bits will be targetting iOS 7.0, and we can't change that).
https://github.com/xamarin/xamarin-macios/issues/6213
You were the preprocessor we wished C# had natively
Removing PMCS requires these changes:
* Remove XamCore from src/
* Remove XamCore from tools/
* Remove XamCore from runtime/
* nint/nuint enum conversion
* _compat_ enum conversion
* NSAction conversion
* Hand fix single API incorrectly converted by PMCS to unbreak compatibility
- Due to a bug in PMCS, the nuint was incorrectly converted in this API.
- However, as that ship as sailed, we must "fix" it until XAMCORE_4_0
* Update readme
* Bump macios-binaries
We normally frown on large scale _cosmetic_ changes, mostly because it breaks git's history (very useful) and makes merging branches harder and more error prone (very annoying).
However we require, right now, such changes to remove our old, mcs-based, pre-processor (pmcs) so it's a _good_ time to address the old, unneeded availability attributes - since most of them are re-written for our next milestone.
This won't change the final application size in most cases, as the linker removes them, but it will make the (unlinked) platform assemblies smaller. This means they will load faster (e.g. by mtouch, mmp, IDE, workbooks...) and will reduce the time/memory needed to reflect them.
There are a number of availability constructs that were uncommon enough / difficult to handle in the generator update or dead simple enough to change.
Some of them include:
- Multiple platforms |'ed into one Availability attributes.
- 32-bit arch Availability attributes were really uncommon and hand processing allowed
them to be skipped completely
- Convert Since, MavericksAttribute/MountainLionAttribute/LionAttribute, and a bunch of Availability (Introduced) to short forms like [Mac] and [iOS].
I also had to patch PMCS to correctly handle PlatformArchitecture arguments, which is ironic because a PR soon after this will delete all of that code.
- ApiTypoTest now enforces the rules defined here: https://github.com/xamarin/xamarin-macios/wiki/BINDINGS#availability-attributes-messages.
- Update all availability messages to follow new ApiTypoTest rules.
- Fix `IsObsolete` to handle ObsoletedAttribute.
- Don't apply rule 1 on Obsolete attribute.
- Allow to skip rule 4.
- Prevent use of OSX, OS X.
Rolf Bjarne Kvinge
Chris Hamons
Sebastien Pouliot
Vincent Dondain