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Current File : //opt/alt/ruby21/lib64/ruby/2.1.0/rubygems/resolver/installed_specification.rb

##
# An InstalledSpecification represents a gem that is already installed
# locally.

class Gem::Resolver::InstalledSpecification < Gem::Resolver::SpecSpecification

  def == other # :nodoc:
    self.class === other and
      @set  == other.set and
      @spec == other.spec
  end

  ##
  # This is a null install as this specification is already installed.
  # +options+ are ignored.

  def install options
    yield nil
  end

  ##
  # Returns +true+ if this gem is installable for the current platform.

  def installable_platform?
    # BACKCOMPAT If the file is coming out of a specified file, then we
    # ignore the platform. This code can be removed in RG 3.0.
    return true if @source.kind_of? Gem::Source::SpecificFile

    super
  end

  ##
  # The source for this specification

  def source
    @source ||= Gem::Source::Installed.new
  end

end