method

spec_predecessors

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spec_predecessors() public

Return a hash of predecessors. result[spec] is an Array of gemspecs that have a dependency satisfied by the named gemspec.

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# File lib/rubygems/dependency_list.rb, line 189
  def spec_predecessors
    result = Hash.new { |h,k| h[k] = [] }

    specs = @specs.sort.reverse

    specs.each do |spec|
      specs.each do |other|
        next if spec == other

        other.dependencies.each do |dep|
          if spec.satisfies_requirement? dep then
            result[spec] << other
          end
        end
      end
    end

    result
  end

spec_predecessors

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