class RDoc::ClassModule

ClassModule is the base class for objects representing either a class or a module.

Attributes

comment_location[RW]

Comment and the location it came from. Use add_comment to add comments

constant_aliases[RW]

Constants that are aliases for this class or module

is_alias_for[RW]

Class or module this constant is an alias for

Public Class Methods

from_module(class_type, mod) click to toggle source

Return a RDoc::ClassModule of class class_type that is a copy of module module. Used to promote modules to classes.

# File rdoc/code_object/class_module.rb, line 50
def self.from_module class_type, mod
  klass = class_type.new mod.name

  mod.comment_location.each do |comment, location|
    klass.add_comment comment, location
  end

  klass.parent = mod.parent
  klass.section = mod.section
  klass.viewer = mod.viewer

  klass.attributes.concat mod.attributes
  klass.method_list.concat mod.method_list
  klass.aliases.concat mod.aliases
  klass.external_aliases.concat mod.external_aliases
  klass.constants.concat mod.constants
  klass.includes.concat mod.includes
  klass.extends.concat mod.extends

  klass.methods_hash.update mod.methods_hash
  klass.constants_hash.update mod.constants_hash

  klass.current_section = mod.current_section
  klass.in_files.concat mod.in_files
  klass.sections.concat mod.sections
  klass.unmatched_alias_lists = mod.unmatched_alias_lists
  klass.current_section = mod.current_section
  klass.visibility = mod.visibility

  klass.classes_hash.update mod.classes_hash
  klass.modules_hash.update mod.modules_hash
  klass.metadata.update mod.metadata

  klass.document_self = mod.received_nodoc ? nil : mod.document_self
  klass.document_children = mod.document_children
  klass.force_documentation = mod.force_documentation
  klass.done_documenting = mod.done_documenting

  # update the parent of all children

  (klass.attributes +
   klass.method_list +
   klass.aliases +
   klass.external_aliases +
   klass.constants +
   klass.includes +
   klass.extends +
   klass.classes +
   klass.modules).each do |obj|
    obj.parent = klass
    obj.full_name = nil
  end

  klass
end

new(name, superclass = nil) click to toggle source

Creates a new ClassModule with name with optional superclass

This is a constructor for subclasses, and must never be called directly.

Calls superclass method RDoc::Context::new

# File rdoc/code_object/class_module.rb, line 111
def initialize(name, superclass = nil)
  @constant_aliases = []
  @diagram          = nil
  @is_alias_for     = nil
  @name             = name
  @superclass       = superclass
  @comment_location = [] # [[comment, location]]

  super()
end

Public Instance Methods

add_comment(comment, location) click to toggle source

Adds comment to this ClassModule’s list of comments at location. This method is preferred over comment= since it allows ri data to be updated across multiple runs.

# File rdoc/code_object/class_module.rb, line 127
def add_comment comment, location
  return unless document_self

  original = comment

  comment = case comment
            when RDoc::Comment then
              comment.normalize
            else
              normalize_comment comment
            end

  if location.parser == RDoc::Parser::C
    @comment_location.delete_if { |(_, l)| l == location }
  end

  @comment_location << [comment, location]

  self.comment = original
end

ancestors() click to toggle source

Ancestors list for this ClassModule: the list of included modules (classes will add their superclass if any).

Returns the included classes or modules, not the includes themselves. The returned values are either String or RDoc::NormalModule instances (see RDoc::Include#module).

The values are returned in reverse order of their inclusion, which is the order suitable for searching methods/attributes in the ancestors. The superclass, if any, comes last.

# File rdoc/code_object/class_module.rb, line 171
def ancestors
  includes.map { |i| i.module }.reverse
end

Also aliased as: direct_ancestors

aref() click to toggle source

HTML fragment reference for this module or class. See RDoc::NormalClass#aref and RDoc::NormalModule#aref

# File rdoc/code_object/class_module.rb, line 183
def aref
  "#{aref_prefix}-#{full_name}"
end

clear_comment() click to toggle source

Clears the comment. Used by the Ruby parser.

# File rdoc/code_object/class_module.rb, line 195
def clear_comment
  @comment = ''
end

complete(min_visibility) click to toggle source

Prepares this ClassModule for use by a generator.

See RDoc::Store#complete

# File rdoc/code_object/class_module.rb, line 223
def complete min_visibility
  update_aliases
  remove_nodoc_children
  embed_mixins
  update_includes
  remove_invisible min_visibility
end

description() click to toggle source

Handy wrapper for marking up this class or module’s comment

# File rdoc/generator/markup.rb, line 131
def description
  markup @comment_location
end

direct_ancestors()

Ancestors of this class or module only

Alias for: ancestors

document_self_or_methods() click to toggle source

Does this ClassModule or any of its methods have document_self set?

# File rdoc/code_object/class_module.rb, line 234
def document_self_or_methods
  document_self || method_list.any?{ |m| m.document_self }
end

documented?() click to toggle source

Does this class or module have a comment with content or is received_nodoc true?

# File rdoc/code_object/class_module.rb, line 242
def documented?
  return true if @received_nodoc
  return false if @comment_location.empty?
  @comment_location.any? { |comment, _| not comment.empty? }
end

each_ancestor() { |module| ... } click to toggle source

Iterates the ancestors of this class or module for which an RDoc::ClassModule exists.

# File rdoc/code_object/class_module.rb, line 252
def each_ancestor # :yields: module
  return enum_for __method__ unless block_given?

  ancestors.each do |mod|
    next if String === mod
    next if self == mod
    yield mod
  end
end

embed_mixins() click to toggle source

# File rdoc/code_object/class_module.rb, line 829
def embed_mixins
  return unless options.embed_mixins

  includes.each do |include|
    next if String === include.module
    include.module.method_list.each do |code_object|
      add_method(prepare_to_embed(code_object))
    end
    include.module.constants.each do |code_object|
      add_constant(prepare_to_embed(code_object))
    end
    include.module.attributes.each do |code_object|
      add_attribute(prepare_to_embed(code_object))
    end
  end

  extends.each do |ext|
    next if String === ext.module
    ext.module.method_list.each do |code_object|
      add_method(prepare_to_embed(code_object, true))
    end
    ext.module.attributes.each do |code_object|
      add_attribute(prepare_to_embed(code_object, true))
    end
  end
end

find_ancestor_local_symbol(symbol) click to toggle source

Looks for a symbol in the ancestors. See Context#find_local_symbol.

# File rdoc/code_object/class_module.rb, line 265
def find_ancestor_local_symbol symbol
  each_ancestor do |m|
    res = m.find_local_symbol(symbol)
    return res if res
  end

  nil
end

find_class_named(name) click to toggle source

Finds a class or module with name in this namespace or its descendants

# File rdoc/code_object/class_module.rb, line 277
def find_class_named name
  return self if full_name == name
  return self if @name == name

  @classes.values.find do |klass|
    next if klass == self
    klass.find_class_named name
  end
end

full_name() click to toggle source

Return the fully qualified name of this class or module

# File rdoc/code_object/class_module.rb, line 290
def full_name
  @full_name ||= if RDoc::ClassModule === parent then
                   "#{parent.full_name}::#{@name}"
                 else
                   @name
                 end
end

merge(class_module) click to toggle source

Merges class_module into this ClassModule.

The data in class_module is preferred over the receiver.

# File rdoc/code_object/class_module.rb, line 436
def merge class_module
  @parent      = class_module.parent
  @parent_name = class_module.parent_name

  other_document = parse class_module.comment_location

  if other_document then
    document = parse @comment_location

    document = document.merge other_document

    @comment = @comment_location = document
  end

  cm = class_module
  other_files = cm.in_files

  merge_collections attributes, cm.attributes, other_files do |add, attr|
    if add then
      add_attribute attr
    else
      @attributes.delete attr
      @methods_hash.delete attr.pretty_name
    end
  end

  merge_collections constants, cm.constants, other_files do |add, const|
    if add then
      add_constant const
    else
      @constants.delete const
      @constants_hash.delete const.name
    end
  end

  merge_collections includes, cm.includes, other_files do |add, incl|
    if add then
      add_include incl
    else
      @includes.delete incl
    end
  end

  @includes.uniq! # clean up

  merge_collections extends, cm.extends, other_files do |add, ext|
    if add then
      add_extend ext
    else
      @extends.delete ext
    end
  end

  @extends.uniq! # clean up

  merge_collections method_list, cm.method_list, other_files do |add, meth|
    if add then
      add_method meth
    else
      @method_list.delete meth
      @methods_hash.delete meth.pretty_name
    end
  end

  merge_sections cm

  self
end

module?() click to toggle source

Does this object represent a module?

# File rdoc/code_object/class_module.rb, line 571
def module?
  false
end

name=(new_name) click to toggle source

Allows overriding the initial name.

Used for modules and classes that are constant aliases.

# File rdoc/code_object/class_module.rb, line 580
def name= new_name
  @name = new_name
end

name_for_path() click to toggle source

Name to use to generate the url: modules and classes that are aliases for another module or class return the name of the latter.

# File rdoc/code_object/class_module.rb, line 623
def name_for_path
  is_alias_for ? is_alias_for.full_name : full_name
end

non_aliases() click to toggle source

Returns the classes and modules that are not constants aliasing another class or module. For use by formatters only (caches its result).

# File rdoc/code_object/class_module.rb, line 632
def non_aliases
  @non_aliases ||= classes_and_modules.reject { |cm| cm.is_alias_for }
end

parse(comment_location) click to toggle source

Parses comment_location into an RDoc::Markup::Document composed of multiple RDoc::Markup::Documents with their file set.

Calls superclass method RDoc::Text#parse

# File rdoc/code_object/class_module.rb, line 588
def parse comment_location
  case comment_location
  when String then
    super
  when Array then
    docs = comment_location.map do |comment, location|
      doc = super comment
      doc.file = location
      doc
    end

    RDoc::Markup::Document.new(*docs)
  when RDoc::Comment then
    doc = super comment_location.text, comment_location.format
    doc.file = comment_location.location
    doc
  when RDoc::Markup::Document then
    return comment_location
  else
    raise ArgumentError, "unknown comment class #{comment_location.class}"
  end
end

path() click to toggle source

Path to this class or module for use with HTML generator output.

# File rdoc/code_object/class_module.rb, line 614
def path
  http_url @store.rdoc.generator.class_dir
end

remove_nodoc_children() click to toggle source

Updates the child modules or classes of class/module parent by deleting the ones that have been removed from the documentation.

parent_hash is either parent.modules_hash or parent.classes_hash and all_hash is ::all_modules_hash or ::all_classes_hash.

# File rdoc/code_object/class_module.rb, line 644
def remove_nodoc_children
  prefix = self.full_name + '::'

  modules_hash.each_key do |name|
    full_name = prefix + name
    modules_hash.delete name unless @store.modules_hash[full_name]
  end

  classes_hash.each_key do |name|
    full_name = prefix + name
    classes_hash.delete name unless @store.classes_hash[full_name]
  end
end

search_record() click to toggle source

Search record used by RDoc::Generator::JsonIndex

# File rdoc/code_object/class_module.rb, line 673
def search_record
  [
    name,
    full_name,
    full_name,
    '',
    path,
    '',
    snippet(@comment_location),
  ]
end

store=(store) click to toggle source

Sets the store for this class or module and its contained code objects.

Calls superclass method RDoc::CodeObject#store=

# File rdoc/code_object/class_module.rb, line 688
def store= store
  super

  @attributes .each do |attr|  attr.store  = store end
  @constants  .each do |const| const.store = store end
  @includes   .each do |incl|  incl.store  = store end
  @extends    .each do |ext|   ext.store   = store end
  @method_list.each do |meth|  meth.store  = store end
end

super_classes() click to toggle source

Get all super classes of this class in an array. The last element might be a string if the name is unknown.

# File rdoc/code_object/class_module.rb, line 731
def super_classes
  result = []
  parent = self
  while parent = parent.superclass
    result << parent
    return result if parent.is_a?(String)
  end
  result
end

superclass() click to toggle source

Get the superclass of this class. Attempts to retrieve the superclass object, returns the name if it is not known.

# File rdoc/code_object/class_module.rb, line 702
def superclass
  @store.find_class_named(@superclass) || @superclass
end

superclass=(superclass) click to toggle source

Set the superclass of this class to superclass

where superclass is one of:

nil
a String containing the full name of the superclass
the RDoc::ClassModule representing the superclass

# File rdoc/code_object/class_module.rb, line 715
def superclass=(superclass)
  raise NoMethodError, "#{full_name} is a module" if module?
  case superclass
  when RDoc::ClassModule
    @superclass = superclass.full_name
  when nil, String
    @superclass = superclass
  else
    raise TypeError, "superclass must be a String or RDoc::ClassModule, not #{superclass.class}"
  end
end

type() click to toggle source

‘module’ or ‘class’

# File rdoc/code_object/class_module.rb, line 752
def type
  module? ? 'module' : 'class'
end

update_aliases() click to toggle source

Updates the child modules & classes by replacing the ones that are aliases through a constant.

The aliased module/class is replaced in the children and in RDoc::Store#modules_hash or RDoc::Store#classes_hash by a copy that has RDoc::ClassModule#is_alias_for set to the aliased module/class, and this copy is added to #aliases of the aliased module/class.

Formatters can use the non_aliases method to retrieve children that are not aliases, for instance to list the namespace content, since the aliased modules are included in the constants of the class/module, that are listed separately.

# File rdoc/code_object/class_module.rb, line 771
def update_aliases
  constants.each do |const|
    next unless cm = const.is_alias_for
    cm_alias = cm.dup
    cm_alias.name = const.name

    # Don't move top-level aliases under Object, they look ugly there
    unless RDoc::TopLevel === cm_alias.parent then
      cm_alias.parent = self
      cm_alias.full_name = nil # force update for new parent
    end

    cm_alias.aliases.clear
    cm_alias.is_alias_for = cm

    if cm.module? then
      @store.modules_hash[cm_alias.full_name] = cm_alias
      modules_hash[const.name] = cm_alias
    else
      @store.classes_hash[cm_alias.full_name] = cm_alias
      classes_hash[const.name] = cm_alias
    end

    cm.aliases << cm_alias
  end
end

update_extends() click to toggle source

Deletes from extends those whose module has been removed from the documentation.

# File rdoc/code_object/class_module.rb, line 819
def update_extends
  extends.reject! do |ext|
    mod = ext.module

    !(String === mod) && @store.modules_hash[mod.full_name].nil?
  end

  extends.uniq!
end

update_includes() click to toggle source

Deletes from includes those whose module has been removed from the documentation.

# File rdoc/code_object/class_module.rb, line 804
def update_includes
  includes.reject! do |include|
    mod = include.module
    !(String === mod) && @store.modules_hash[mod.full_name].nil?
  end

  includes.uniq!
end

Private Instance Methods

prepare_to_embed(code_object, singleton=false) click to toggle source

# File rdoc/code_object/class_module.rb, line 858
def prepare_to_embed(code_object, singleton=false)
  code_object = code_object.dup
  code_object.mixin_from = code_object.parent
  code_object.singleton = true if singleton
  set_current_section(code_object.section.title, code_object.section.comment)
  # add_method and add_attribute will reassign self's visibility back to the method/attribute
  # so we need to sync self's visibility with the object's to properly retain that information
  self.visibility = code_object.visibility
  code_object
end