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  • Committer: Bazaar Package Importer
  • Author(s): Stephan Hermann
  • Date: 2008-01-24 11:42:29 UTC
  • mfrom: (1.1.9 upstream)
  • Revision ID: james.westby@ubuntu.com-20080124114229-jw2f87rdxlq6gp11
Tags: 1.9.0.0-2ubuntu1
* Merge from debian unstable, remaining changes:
  - Robustify check for target_os, fixing build failure on lpia.

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