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Edit File: environment_walker.rbs

module RBS
  # EnvironmentWalker provides topological sort of class/module definitions.
  #
  # If a method, attribute, or ancestor in a class definition have a reference to another class, it is dependency.
  #
  # ```rb
  # walker = EnvironmentWalker.new(env: env)
  #
  # walker.each_strongly_connected_component do |scc|
  #   # Yields an array of strongly connected components.
  # end
  # ```
  #
  # The `#only_ancestors!` method limits the dependency only to ancestors.
  # Only super classes and included modules are dependencies with the option.
  # This is useful to calculate the dependencies of class hierarchy.
  #
  # ```rb
  # walker = EnvironmentWalker.new(env: env).only_ancestors!
  #
  # walker.each_strongly_connected_component do |scc|
  #   # Yields an array of strongly connected components.
  # end
  # ```
  #
  class EnvironmentWalker
    class InstanceNode
      attr_reader type_name: TypeName
      def initialize: (type_name: TypeName) -> void
    end

class SingletonNode
      attr_reader type_name: TypeName
      def initialize: (type_name: TypeName) -> void
    end

class TypeNameNode
      attr_reader type_name: TypeName
      def initialize: (type_name: TypeName) -> void
    end

attr_reader env: Environment
    attr_reader only_ancestors: bool
    attr_reader builder: DefinitionBuilder

def initialize: (env: Environment) -> void

def only_ancestors!: (?bool only) -> self

def only_ancestors?: () -> bool

type node = InstanceNode | SingletonNode | TypeNameNode
    include TSort[node]

def tsort_each_node: () { (node) -> void } -> void

def tsort_each_child: (node) { (node) -> void } -> void

private

def each_type_name: (Types::t) { (TypeName) -> void } -> void

def each_type_node: (Types::t) { (node) -> void } -> void
  end
end

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