# frozen_string_literal: true require_relative 'dependency_graph' module Gem::Resolver::Molinillo # This class encapsulates a dependency resolver. # The resolver is responsible for determining which set of dependencies to # activate, with feedback from the {#specification_provider} # # class Resolver require_relative 'resolution' # @return [SpecificationProvider] the specification provider used # in the resolution process attr_reader :specification_provider # @return [UI] the UI module used to communicate back to the user # during the resolution process attr_reader :resolver_ui # Initializes a new resolver. # @param [SpecificationProvider] specification_provider # see {#specification_provider} # @param [UI] resolver_ui # see {#resolver_ui} def initialize(specification_provider, resolver_ui) @specification_provider = specification_provider @resolver_ui = resolver_ui end # Resolves the requested dependencies into a {DependencyGraph}, # locking to the base dependency graph (if specified) # @param [Array] requested an array of 'requested' dependencies that the # {#specification_provider} can understand # @param [DependencyGraph,nil] base the base dependency graph to which # dependencies should be 'locked' def resolve(requested, base = DependencyGraph.new) Resolution.new(specification_provider, resolver_ui, requested, base). resolve end end end