• max() -> __objc_max() (microsoft/libobjc2@9630cf1)
  • stdlib.h defines max as a macro in recent versions of Visual Studio
• win32: Add/update a handful of defines for Win32 without MinGW/Cygwin. (microsoft/libobjc2@6cd94b7)
• Replace extern with OBJC_HOOK in hooks.h (microsoft/libobjc2@b6099e5)
• win32/uwp: Remove getenv, which caused applications to fail store certification (microsoft/libobjc2@14bfb02)
  • Maybe we want to gate this on the API family in use
• Fix asmconstants for win64 (LLP64) (microsoft/libobjc2@54c0c83)
• fix objc_msgSend.*.S for win64 (microsoft/libobjc2@acd3fcc)
• Offer an objc_enumerationMutation hook for platforms without weak imports. (microsoft/libobjc2@6e4fa86)
  • This may be better served by a link line order fix to ensure that Foundation's objc_enumeration_mutation is found before libobjc2's.
  • Symbols cannot easily be defined weak in COFF. Doing so is a no-op in Clang/LLVM; CL will generate them, but they don't have the semantics we're hoping for.

In Review

Completed

• Use the old association policy to determine whether to release an object (microsoft/libobjc2@0b2cfdc)
  • Maintainer has requested a test.
• Wrap some headers in extern C for C++ compat. (microsoft/libobjc2@8c8534e)
• fix objc_resolve_class_links to actually rescan the unresolved list (microsoft/libobjc2@f503a3d)
• fix a mismanagement of the hash table that could lead to data loss (microsoft/libobjc2@038543f)
  • Maintainer has requested a test.
• fix flipped sense on ASSERT() (microsoft/libobjc2@cd4f43d)
• always look beyond the first page of associated objects (microsoft/libobjc2@828e6eb)
• teach class_setSuperclass about metaclasses, subclass lists, and dtables (microsoft/libobjc2@aa58f6f)
  • Maintainer has requested changes.
  • Maintainer has requested a test.
• win32: use native threading APIs instead of pthreads (microsoft/libobjc2@7a226d8)
  • Maintainer has requested changes.
• fix objc_msgSend.*.S for win32 (microsoft/libobjc2@acd3fcc)

Not Required

• remove the debug output from associate.m (microsoft/libobjc2@d813c8e)
• nil -> nullptr on C++11. nil can't be an id for block comparisons. (microsoft/libobjc2@3d5994e)
  • Taken upstream without PR (gnustep/libobjc2@3c036b3f4f830ceb)
  • nil block comparison issue left as comment

In Question

• Introduce 2-stage Objective-C initialization (microsoft/libobjc2@44988ee)
  • New ABI, coupled with clang changes
• Add a MSVC/VS2017-compatible objc_exception_{,re}throw (microsoft/libobjc2@375a009)
• We've got a lot of selectors with the same name. Include the type in the hash (microsoft/libobjc2@6ae101d)
  • This was a workaround for our projections libraries having ~1000 selectors of the same name that differed only on argument types.
• recognize selectors that have been pre-hashed by the compiler (microsoft/libobjc2@c8ecc35)
  • This is Microsoft ABI 11 -- it was committed to for performance reasons, but we don't know if those are better-fixed by better data folding compiler-side.
• Working around a WinObjC regression that hit after switching to the libobjc2 runtime (microsoft/libobjc2@c2013dc)
  • (this is an ivar slide issue, it is fixed upstream)
• Work around _NSConcreteGlobalBlock's linkage on win32 (microsoft/libobjc2@ef18759, microsoft/libobjc2@652be81)
  • win32: add an unpleasant workaround for _NSConcreteGlobalBlock's linkage
  • This is an unfortunate consequence of using dllimport on constants in the data section. The import cannot be resolved because it's in a read-only section without a dynamic initializer.