Contents

module RBS
  class Namespace
    attr_reader :path

    def initialize(path:, absolute:)
      @path = path
      @absolute = absolute
    end

    def self.empty
      new(path: [], absolute: false)
    end

    def self.root
      new(path: [], absolute: true)
    end

    def +(other)
      if other.absolute?
        other
      else
        self.class.new(path: path + other.path, absolute: absolute?)
      end
    end

    def append(component)
      self.class.new(path: path + [component], absolute: absolute?)
    end

    def parent
      raise "Parent with empty namespace" if empty?
      self.class.new(path: path.take(path.size - 1), absolute: absolute?)
    end

    def absolute?
      @absolute
    end

    def relative?
      !absolute?
    end

    def absolute!
      self.class.new(path: path, absolute: true)
    end

    def relative!
      self.class.new(path: path, absolute: false)
    end

    def empty?
      path.empty?
    end

    def ==(other)
      other.is_a?(Namespace) && other.path == path && other.absolute? == absolute?
    end

    alias eql? ==

    def hash
      self.class.hash ^ path.hash ^ absolute?.hash
    end

    def split
      [parent, path.last]
    end

    def to_s
      if empty?
        absolute? ? "::" : ""
      else
        s = path.join("::")
        absolute? ? "::#{s}::" : "#{s}::"
      end
    end

    def to_type_name
      parent, name = split
      TypeName.new(name: name, namespace: parent)
    end

    def self.parse(string)
      if string.start_with?("::")
        new(path: string.split("::").drop(1).map(&:to_sym), absolute: true)
      else
        new(path: string.split("::").map(&:to_sym), absolute: false)
      end
    end
  end
end

Version data entries

3 entries across 3 versions & 2 rubygems

Version	Path
rbs-0.2.0	lib/rbs/namespace.rb
steep-0.16.0	vendor/ruby-signature/lib/rbs/namespace.rb
steep-0.15.0	vendor/ruby-signature/lib/rbs/namespace.rb