class Bundler::Definition

def resolution_packages
  @resolution_packages ||= begin
    last_resolve = converge_locked_specs
    remove_invalid_platforms!
    packages = Resolver::Base.new(source_requirements, expanded_dependencies, last_resolve, @platforms, locked_specs: @originally_locked_specs, unlock: @gems_to_unlock, prerelease: gem_version_promoter.pre?, prefer_local: @prefer_local)
    packages = additional_base_requirements_to_prevent_downgrades(packages, last_resolve)
    packages = additional_base_requirements_to_force_updates(packages)
    packages
  end
end