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//proc/thread-self/root/opt/alt/ruby24/lib64/ruby/2.4.0/rubygems/resolver/molinillo/lib/molinillo/state.rb

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# frozen_string_literal: true
module Gem::Resolver::Molinillo
  # A state that a {Resolution} can be in
  # @attr [String] name the name of the current requirement
  # @attr [Array<Object>] requirements currently unsatisfied requirements
  # @attr [DependencyGraph] activated the graph of activated dependencies
  # @attr [Object] requirement the current requirement
  # @attr [Object] possibilities the possibilities to satisfy the current requirement
  # @attr [Integer] depth the depth of the resolution
  # @attr [Set<Object>] conflicts unresolved conflicts
  ResolutionState = Struct.new(
    :name,
    :requirements,
    :activated,
    :requirement,
    :possibilities,
    :depth,
    :conflicts
  )

class ResolutionState
    # Returns an empty resolution state
    # @return [ResolutionState] an empty state
    def self.empty
      new(nil, [], DependencyGraph.new, nil, nil, 0, Set.new)
    end
  end

# A state that encapsulates a set of {#requirements} with an {Array} of
  # possibilities
  class DependencyState < ResolutionState
    # Removes a possibility from `self`
    # @return [PossibilityState] a state with a single possibility,
    #  the possibility that was removed from `self`
    def pop_possibility_state
      PossibilityState.new(
        name,
        requirements.dup,
        activated,
        requirement,
        [possibilities.pop],
        depth + 1,
        conflicts.dup
      ).tap do |state|
        state.activated.tag(state)
      end
    end
  end

# A state that encapsulates a single possibility to fulfill the given
  # {#requirement}
  class PossibilityState < ResolutionState
  end
end

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Name	Size	Perms	Modified	Actions
delegates DIR	-	drwxr-xr-x	2024-03-03 22:48:02	Edit Download recursive recursive
dependency_graph DIR	-	drwxr-xr-x	2024-03-03 22:48:02	Edit Download recursive recursive
modules DIR	-	drwxr-xr-x	2024-03-03 22:48:02	Edit Download recursive recursive
dependency_graph.rb	7.25 KB	lrw-r--r--	2020-03-31 11:42:18	Edit Download recursive recursive
errors.rb	2.76 KB	lrw-r--r--	2020-03-31 11:42:18	Edit Download recursive recursive
gem_metadata.rb	138 B	lrw-r--r--	2020-03-31 11:42:18	Edit Download recursive recursive
resolution.rb	18.64 KB	lrw-r--r--	2020-03-31 11:42:18	Edit Download recursive recursive
resolver.rb	1.60 KB	lrw-r--r--	2020-03-31 11:42:18	Edit Download recursive recursive
state.rb	1.61 KB	lrw-r--r--	2020-03-31 11:42:18	Edit Download recursive recursive

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