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#--
# Copyright 2006 by Chad Fowler, Rich Kilmer, Jim Weirich and others.
# All rights reserved.
# See LICENSE.txt for permissions.
#++
require 'rubygems'
##
# The Dependency class holds a Gem name and a Gem::Requirement
class Gem::Dependency
attr_accessor :name
attr_writer :version_requirements
def <=>(other)
[@name] <=> [other.name]
end
##
# Constructs the dependency
#
# name:: [String] name of the Gem
# version_requirements:: [String Array] version requirement (e.g. ["> 1.2"])
#
def initialize(name, version_requirements)
@name = name
@version_requirements = Gem::Requirement.create version_requirements
@version_requirement = nil # Avoid warnings.
end
def version_requirements
normalize if defined? @version_requirement and @version_requirement
@version_requirements
end
def requirement_list
version_requirements.as_list
end
alias requirements_list requirement_list
def normalize
ver = @version_requirement.instance_eval { @version }
@version_requirements = Gem::Requirement.new([ver])
@version_requirement = nil
end
def to_s # :nodoc:
"#{name} (#{version_requirements})"
end
def ==(other) # :nodoc:
self.class === other &&
self.name == other.name &&
self.version_requirements == other.version_requirements
end
def hash
name.hash + version_requirements.hash
end
end
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