Throwing an Objective-C exception through a C++ catch block was broken.
This was because the C++ code inserts a cleanup handler to make sure
that it invokes `__cxa_end_catch`. Unwinding through this catchup
transformed the Objective-C exception into a C++ one. This case should
have been handled, except for two bugs:
1. A typo (`#ifdef` instead of `#ifndef`) meant that we were not
extracting the Objective-C exception from the C++ object.
2. We were skipping everything except catchalls after the search phase,
because we lose some information in the transformation.
Fixes#49
Weak refs were being left as dangling pointers after being deleted. The
load that caused the deallocation would return nil, but then the next
one would dereference a dangling pointer.
Fixes a bug introduced (replacing a similar bug) in the last rewrite of
objc_moveWeak. This version should now be correct.
objc_copyWeak was implemented in a naive way, which had a lot more
overhead than required.
Rather than tracking all of the locations of weak pointers, keep a weak
refcount. This should also make it easier to add finer-grained locking to weak
references.
Some applications still include the old objc-class.h header expecting
to obtain the declarations contained in objc/message.h and
objc/runtime.h nowadays. This commit adds this header to achieve
out-of-the-box compatibility with these applications.
On FreeBSD and OSX, the block runtime functions are defined on a Block.h
and a Block_private.h headers on the include path as opposed to
libobjc2's objc/blocks_runtime.h and objc/blocks_private.h respectively.
This commit amends libobjc2's install routine to create the
FreeBSD-style headers as symlinks to the ones provided by libobjc2 for
improved compatibility.
Some applications still include the old objc-runtime.h header expecting
to obtain the declarations contained in objc/message.h and
objc/runtime.h nowadays. This commit adds this header to achieve
out-of-the-box compatibility with these applications.
correct.
Instance variables are not normally zero-sized, but some are. Examples
include zero-length arrays at the end of a class, and bitfields.
Fixes#30Fixes#31
David Chisnall
David Lobron
David Chisnall
David Chisnall
Zenny Chen
davidchisnall
Daniel Ferreira
Daniel Ferreira
David Chisnall
Niels Grewe