Creates a singleton RingFinger
and looks for a RingServer
. Returns the created RingFinger
.
Return the authoritative instance of the command manager.
Returns self. Allows a CommandManager
instance to stand in for the class itself.
Installs the gem dep_or_name
and all its dependencies. Returns an Array of installed gem specifications.
If the :prerelease
option is set and there is a prerelease for dep_or_name
the prerelease version will be installed.
Unless explicitly specified as a prerelease dependency, prerelease gems that dep_or_name
depend on will not be installed.
If c-1.a depends on b-1 and a-1.a and there is a gem b-1.a available then c-1.a, b-1 and a-1.a will be installed. b-1.a will need to be installed separately.
Installs the gem and returns a loaded Gem::Specification
for the installed gem.
The gem will be installed with the following structure:
@gem_home/ cache/<gem-version>.gem #=> a cached copy of the installed gem gems/<gem-version>/... #=> extracted files specifications/<gem-version>.gemspec #=> the Gem::Specification
Installs gems for this RequestSet
using the Gem::Installer
options
.
If a block
is given an activation request
and installer
are yielded. The installer
will be nil
if a gem matching the request was already installed.
Performs the uninstall of the gem. This removes the spec, the Gem directory, and the cached .gem file.
Sets userinfo, argument is string like ‘name:pass’
returns the userinfo, either as ‘user’ or ‘user:password’
returns attributes.
setter for attributes val
Creates a class to wrap the C struct described by signature
.
MyStruct = struct ['int i', 'char c']
Formats and writes to the stream converting parameters under control of the format string.
See Kernel#sprintf
for format string details.
Converts the given hash
to a marshalled object.
Returns the given hash
if an exception occurs.
Returns the index of the first object in ary
such that the object is ==
to obj
.
If a block is given instead of an argument, returns the index of the first object for which the block returns true
. Returns nil
if no match is found.
See also Array#rindex
.
An Enumerator
is returned if neither a block nor argument is given.
a = [ "a", "b", "c" ] a.index("b") #=> 1 a.index("z") #=> nil a.index { |x| x == "b" } #=> 1
Returns the singleton class of obj. This method creates a new singleton class if obj does not have one.
If obj is nil
, true
, or false
, it returns NilClass
, TrueClass
, or FalseClass
, respectively. If obj is a Fixnum
or a Symbol
, it raises a TypeError
.
Object.new.singleton_class #=> #<Class:#<Object:0xb7ce1e24>> String.singleton_class #=> #<Class:String> nil.singleton_class #=> NilClass