Return the best specification that contains the file matching path amongst the specs that are not activated.
Returns IO instance tied to ARGF for writing if inplace mode is enabled.
Handle BasicObject instances
Return the native thread ID which is used by the Ruby thread.
The ID depends on the OS. (not POSIX thread ID returned by pthread_self(3))
On Linux it is TID returned by gettid(2).
On macOS it is the system-wide unique integral ID of thread returned by pthread_threadid_np(3).
On FreeBSD it is the unique integral ID of the thread returned by pthread_getthreadid_np(3).
On Windows it is the thread identifier returned by GetThreadId().
On other platforms, it raises NotImplementedError.
NOTE: If the thread is not associated yet or already deassociated with a native thread, it returns nil. If the Ruby implementation uses M:N thread model, the ID may change depending on the timing.
Enable to measure GC time. You can get the result with GC.stat(:time). Note that GC time measurement can cause some performance overhead.
Return measure_total_time flag (default: true). Note that measurement can affect the application performance.
Returns a String containing the API compatibility version of Ruby
Returns the latest release version of RubyGems.
Returns the version of the latest release-version of gem name