Invokes system, but silences all output.
Enumerates the parents of directory.
Set the effective user ID, and if possible, the saved user ID of the process to the given user. Returns the new effective user ID. Not available on all platforms.
[Process.uid, Process.euid] #=> [0, 0] Process::UID.grant_privilege(31) #=> 31 [Process.uid, Process.euid] #=> [0, 31]
Exchange real and effective user IDs and return the new effective user ID. Not available on all platforms.
[Process.uid, Process.euid] #=> [0, 31] Process::UID.re_exchange #=> 0 [Process.uid, Process.euid] #=> [31, 0]
Returns true if the real and effective user IDs of a process may be exchanged on the current platform.
Set the effective group ID, and if possible, the saved group ID of the process to the given group. Returns the new effective group ID. Not available on all platforms.
[Process.gid, Process.egid] #=> [0, 0] Process::GID.grant_privilege(31) #=> 33 [Process.gid, Process.egid] #=> [0, 33]
Exchange real and effective group IDs and return the new effective group ID. Not available on all platforms.
[Process.gid, Process.egid] #=> [0, 33] Process::GID.re_exchange #=> 0 [Process.gid, Process.egid] #=> [33, 0]
Returns true if the real and effective group IDs of a process may be exchanged on the current platform.
Check if --yjit-stats is used.
Discard statistics collected for --yjit-stats.
Return a hash for statistics generated for the --yjit-stats command line option. Return nil when option is not passed or unavailable. If a symbol argument is provided, return only the value for the named stat. If any other type is provided, raises TypeError.
class << self; end ^^^^^^^^^^^^^^^^^^
__ENCODING__ ^^^^^^^^^^^^
If a class variable is written within a method definition, it has a different type than everywhere else.
Foo = 1 ^^^^^^^
Foo, Bar = 1 ^^^ ^^^
def foo(…); bar(…); end
^^^
class << self; end ^^^^^^^^^^^^^^^^^^