Improving readability by converting some macros into inline functions.
Also improved support for recent x86_64 processors, which have better
instructions for the purposes.
With these macros implemented we can write codes just like we can assume
the compiler being clang. MSC_VERSION_SINCE is defined to implement
those macros, but turned out to be handy for other places. The -fdeclspec
compiler flag is necessary for clang to properly handle __has_declspec().
Now that we no longer support old compilers, we can safely delete
several obsolete #ifdef gurads. Also because (as of writing) it is
impossible to compile the program using C++ compilers, lets just
entirely prohibit __cplusplus to reduce # of LOCs.
Note however that we still cannot eliminate __STDC_VERSION__ checks,
because MSVC does not define it, saying its C99 support is partial.
See also https://social.msdn.microsoft.com/Forums/vstudio/en-US/53a4fd75-9f97-48b2-aa63-2e2e5a15efa3
This is tentative. For the sake of simplicity we partially revert
commits e9cb552ec9, ee85a6e72b and 51edb30042. Will decouple them
once again when we are ready.
One day, I could not resist the way it was written. I finally started
to make the code clean. This changeset is the beginning of a series of
housekeeping commits. It is a simple refactoring; split internal.h into
files, so that we can divide and concur in the upcoming commits. No
lines of codes are either added or removed, except the obvious file
headers/footers. The generated binary is identical to the one before.
This require causes circular require.
```
$ touch empty_file
$ RUBYGEMS_GEMDEPS=empty_file ./local/bin/ruby -w -e ''
/home/mame/work/ruby/local/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:92: warning: /home/mame/work/ruby/local/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:92: warning: loading in progress, circular require considered harmful - /home/mame/work/ruby/local/lib/ruby/2.7.0/rubygems.rb
from <internal:gem_prelude>:1:in `<internal:gem_prelude>'
from <internal:gem_prelude>:1:in `require'
from /home/mame/work/ruby/local/lib/ruby/2.7.0/rubygems.rb:1417:in `<top (required)>'
from /home/mame/work/ruby/local/lib/ruby/2.7.0/rubygems.rb:1203:in `use_gemdeps'
from /home/mame/work/ruby/local/lib/ruby/2.7.0/rubygems/user_interaction.rb:47:in `use_ui'
from /home/mame/work/ruby/local/lib/ruby/2.7.0/rubygems.rb:1204:in `block in use_gemdeps'
from /home/mame/work/ruby/local/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:92:in `require'
from /home/mame/work/ruby/local/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:92:in `require'
from /home/mame/work/ruby/local/lib/ruby/2.7.0/bundler.rb:11:in `<top (required)>'
from /home/mame/work/ruby/local/lib/ruby/2.7.0/bundler.rb:11:in `require_relative'
from /home/mame/work/ruby/local/lib/ruby/2.7.0/bundler/rubygems_integration.rb:3:in `<top (required)>'
from /home/mame/work/ruby/local/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:92:in `require'
from /home/mame/work/ruby/local/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:92:in `require'
```
https://github.com/bundler/bundler/commit/c7c5bcea92
On USE_LAZY_LOAD=1, the iseq should be loaded. So rb_iseq_check()
is needed. Furthermore, now lazy loading with builtin_function_table
is not supported, so it should cancel lazy loading.
卜部昌平
Nobuyoshi Nakada
git
Yukihiro "Matz" Matsumoto
aycabta
NARUSE, Yui
Yusuke Endoh
Kenta Murata
Koichi Sasada
Hiroshi SHIBATA
Yuki Nishijima
Marcus Stollsteimer
Alan Wu