method

build_details_for_unwind

Ruby latest stable (v2_5_5) - 0 notes - Class: Resolution

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1_8_7_330
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1_9_3_392
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2_4_6
2_5_5
2_6_3 (0)
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build_details_for_unwind() private

@return [UnwindDetails] Details of the nearest index to which we could unwind

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# File lib/bundler/vendor/molinillo/lib/molinillo/resolution.rb, line 332
      def build_details_for_unwind
        # Get the possible unwinds for the current conflict
        current_conflict = conflicts[name]
        binding_requirements = binding_requirements_for_conflict(current_conflict)
        unwind_details = unwind_options_for_requirements(binding_requirements)

        last_detail_for_current_unwind = unwind_details.sort.last
        current_detail = last_detail_for_current_unwind

        # Look for past conflicts that could be unwound to affect the
        # requirement tree for the current conflict
        relevant_unused_unwinds = unused_unwind_options.select do |alternative|
          intersecting_requirements =
            last_detail_for_current_unwind.all_requirements &
            alternative.requirements_unwound_to_instead
          next if intersecting_requirements.empty?
          # Find the highest index unwind whilst looping through
          current_detail = alternative if alternative > current_detail
          alternative
        end

        # Add the current unwind options to the `unused_unwind_options` array.
        # The "used" option will be filtered out during `unwind_for_conflict`.
        state.unused_unwind_options += unwind_details.reject { |detail| detail.state_index == -1 }

        # Update the requirements_unwound_to_instead on any relevant unused unwinds
        relevant_unused_unwinds.each { |d| d.requirements_unwound_to_instead << current_detail.state_requirement }
        unwind_details.each { |d| d.requirements_unwound_to_instead << current_detail.state_requirement }

        current_detail
      end

build_details_for_unwind

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