Class: RDoc::ClassModule

Inherits:
Context show all
Defined in:
lib/rdoc/class_module.rb,
lib/rdoc/generator/markup.rb

Overview

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

Direct Known Subclasses

AnonClass, NormalClass, NormalModule, SingleClass

Constant Summary collapse

MARSHAL_VERSION =
1

RDoc 3.7

  • Added visibility, singleton and file to attributes

  • Added file to constants

  • Added file to includes

  • Added file to methods

2

RDoc 3.13

  • Added extends

3

RDoc 4.0

  • Added sections

  • Added in_files

  • Added parent name

  • Complete Constant dump

3

Constants inherited from Context

RDoc::Context::TOMDOC_TITLES, RDoc::Context::TOMDOC_TITLES_SORT, RDoc::Context::TYPES

Constants included from Text

Text::MARKUP_FORMAT, Text::TO_HTML_CHARACTERS

Instance Attribute Summary collapse

Attributes inherited from Context

#aliases, #attributes, #block_params, #constants, #constants_hash, #current_line_visibility, #current_section, #extends, #external_aliases, #in_files, #includes, #method_list, #methods_hash, #name, #params, #requires, #temporary_section, #unmatched_alias_lists, #visibility

Attributes inherited from CodeObject

#comment, #document_children, #document_self, #done_documenting, #file, #force_documentation, #line, #metadata, #parent, #received_nodoc, #section, #store, #viewer

Attributes included from Text

#language

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Context

#<=>, #add, #add_alias, #add_attribute, #add_class, #add_class_or_module, #add_constant, #add_extend, #add_include, #add_method, #add_module, #add_module_alias, #add_module_by_normal_module, #add_require, #add_section, #add_to, #any_content, #child_name, #class_attributes, #class_method_list, #classes, #classes_and_modules, #classes_hash, #defined_in?, #display, #each_attribute, #each_classmodule, #each_constant, #each_extend, #each_include, #each_method, #each_section, #find_attribute, #find_attribute_named, #find_class_method_named, #find_constant_named, #find_enclosing_module_named, #find_external_alias, #find_external_alias_named, #find_file_named, #find_instance_method_named, #find_local_symbol, #find_method, #find_method_named, #find_module_named, #find_symbol, #find_symbol_module, #fully_documented?, #http_url, #initialize_methods_etc, #instance_attributes, #instance_method_list, #instance_methods, #methods_by_type, #methods_matching, #modules, #modules_hash, #ongoing_visibility=, #record_location, #remove_from_documentation?, #remove_invisible, #remove_invisible_in, #resolve_aliases, #section_contents, #sections, #sections_hash, #set_constant_visibility_for, #set_current_section, #set_visibility_for, #sort_sections, #top_level, #upgrade_to_class

Methods inherited from CodeObject

#display?, #each_parent, #file_name, #full_name=, #ignore, #ignored?, #initialize_visibility, #options, #parent_file_name, #parent_name, #record_location, #start_doc, #stop_doc, #suppress, #suppressed?

Methods included from Generator::Markup

#aref_to, #as_href, #cvs_url, #formatter

Methods included from Text

encode_fallback, #expand_tabs, #flush_left, #markup, #normalize_comment, #snippet, #strip_hashes, #strip_newlines, #strip_stars, #to_html, #wrap

Constructor Details

#initialize(name, superclass = nil) ⇒ ClassModule

Creates a new ClassModule with name with optional superclass

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


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# File 'lib/rdoc/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

Instance Attribute Details

#comment_locationObject

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


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# File 'lib/rdoc/class_module.rb', line 35

def comment_location
  @comment_location
end

#constant_aliasesObject

Constants that are aliases for this class or module


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# File 'lib/rdoc/class_module.rb', line 30

def constant_aliases
  @constant_aliases
end

#diagramObject

:nodoc:


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# File 'lib/rdoc/class_module.rb', line 37

def diagram
  @diagram
end

#is_alias_forObject

Class or module this constant is an alias for


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# File 'lib/rdoc/class_module.rb', line 42

def is_alias_for
  @is_alias_for
end

Class Method Details

.from_module(class_type, mod) ⇒ Object

Return a RDoc::ClassModule of class class_type that is a copy of module module. Used to promote modules to classes. – TODO move to RDoc::NormalClass (I think)


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# File 'lib/rdoc/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..update mod.

  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

Instance Method Details

#add_comment(comment, location) ⇒ Object

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.


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# File 'lib/rdoc/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

#add_things(my_things, other_things) ⇒ Object

:nodoc:


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# File 'lib/rdoc/class_module.rb', line 148

def add_things my_things, other_things # :nodoc:
  other_things.each do |group, things|
    my_things[group].each { |thing| yield false, thing } if
      my_things.include? group

    things.each do |thing|
      yield true, thing
    end
  end
end

#ancestorsObject Also known as: direct_ancestors

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.


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# File 'lib/rdoc/class_module.rb', line 171

def ancestors
  includes.map { |i| i.module }.reverse
end

#arefObject

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


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# File 'lib/rdoc/class_module.rb', line 183

def aref
  "#{aref_prefix}-#{full_name}"
end

#aref_prefixObject

:nodoc:

Raises:

  • (NotImplementedError)

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# File 'lib/rdoc/class_module.rb', line 175

def aref_prefix # :nodoc:
  raise NotImplementedError, "missing aref_prefix for #{self.class}"
end

#clear_commentObject

Clears the comment. Used by the Ruby parser.


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# File 'lib/rdoc/class_module.rb', line 195

def clear_comment
  @comment = ''
end

#comment=(comment) ⇒ Object

This method is deprecated, use #add_comment instead.

Appends comment to the current comment, but separated by a rule. Works more like +=.


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# File 'lib/rdoc/class_module.rb', line 205

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

  comment = "#{@comment.to_s}\n---\n#{comment.to_s}" unless @comment.empty?

  super comment
end

#complete(min_visibility) ⇒ Object

Prepares this ClassModule for use by a generator.

See RDoc::Store#complete


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# File 'lib/rdoc/class_module.rb', line 223

def complete min_visibility
  update_aliases
  remove_nodoc_children
  update_includes
  remove_invisible min_visibility
end

#descriptionObject

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


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# File 'lib/rdoc/generator/markup.rb', line 131

def description
  markup @comment_location
end

#document_self_or_methodsObject

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


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# File 'lib/rdoc/class_module.rb', line 233

def document_self_or_methods
  document_self || method_list.any?{ |m| m.document_self }
end

#documented?Boolean

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

Returns:

  • (Boolean)

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# File 'lib/rdoc/class_module.rb', line 241

def documented?
  return true if @received_nodoc
  return false if @comment_location.empty?
  @comment_location.any? { |comment, _| not comment.empty? }
end

#each_ancestorObject

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


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# File 'lib/rdoc/class_module.rb', line 251

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

#find_ancestor_local_symbol(symbol) ⇒ Object

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


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# File 'lib/rdoc/class_module.rb', line 264

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) ⇒ Object

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


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# File 'lib/rdoc/class_module.rb', line 276

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_nameObject

Return the fully qualified name of this class or module


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# File 'lib/rdoc/class_module.rb', line 289

def full_name
  @full_name ||= if RDoc::ClassModule === parent then
                   "#{parent.full_name}::#{@name}"
                 else
                   @name
                 end
end

#marshal_dumpObject

TODO: filter included items by #display?


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# File 'lib/rdoc/class_module.rb', line 300

def marshal_dump # :nodoc:
  attrs = attributes.sort.map do |attr|
    next unless attr.display?
    [ attr.name, attr.rw,
      attr.visibility, attr.singleton, attr.file_name,
    ]
  end.compact

  method_types = methods_by_type.map do |type, visibilities|
    visibilities = visibilities.map do |visibility, methods|
      method_names = methods.map do |method|
        next unless method.display?
        [method.name, method.file_name]
      end.compact

      [visibility, method_names.uniq]
    end

    [type, visibilities]
  end

  [ MARSHAL_VERSION,
    @name,
    full_name,
    @superclass,
    parse(@comment_location),
    attrs,
    constants.select { |constant| constant.display? },
    includes.map do |incl|
      next unless incl.display?
      [incl.name, parse(incl.comment), incl.file_name]
    end.compact,
    method_types,
    extends.map do |ext|
      next unless ext.display?
      [ext.name, parse(ext.comment), ext.file_name]
    end.compact,
    @sections.values,
    @in_files.map do |tl|
      tl.relative_name
    end,
    parent.full_name,
    parent.class,
  ]
end

#marshal_load(array) ⇒ Object

:nodoc:


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# File 'lib/rdoc/class_module.rb', line 346

def marshal_load array # :nodoc:
  initialize_visibility
  initialize_methods_etc
  @current_section   = nil
  @document_self     = true
  @done_documenting  = false
  @parent            = nil
  @temporary_section = nil
  @visibility        = nil
  @classes           = {}
  @modules           = {}

  @name       = array[1]
  @full_name  = array[2]
  @superclass = array[3]
  @comment    = array[4]

  @comment_location = if RDoc::Markup::Document === @comment.parts.first then
                        @comment
                      else
                        RDoc::Markup::Document.new @comment
                      end

  array[5].each do |name, rw, visibility, singleton, file|
    singleton  ||= false
    visibility ||= :public

    attr = RDoc::Attr.new nil, name, rw, nil, singleton

    add_attribute attr
    attr.visibility = visibility
    attr.record_location RDoc::TopLevel.new file
  end

  array[6].each do |constant, comment, file|
    case constant
    when RDoc::Constant then
      add_constant constant
    else
      constant = add_constant RDoc::Constant.new(constant, nil, comment)
      constant.record_location RDoc::TopLevel.new file
    end
  end

  array[7].each do |name, comment, file|
    incl = add_include RDoc::Include.new(name, comment)
    incl.record_location RDoc::TopLevel.new file
  end

  array[8].each do |type, visibilities|
    visibilities.each do |visibility, methods|
      @visibility = visibility

      methods.each do |name, file|
        method = RDoc::AnyMethod.new nil, name
        method.singleton = true if type == 'class'
        method.record_location RDoc::TopLevel.new file
        add_method method
      end
    end
  end

  array[9].each do |name, comment, file|
    ext = add_extend RDoc::Extend.new(name, comment)
    ext.record_location RDoc::TopLevel.new file
  end if array[9] # Support Marshal version 1

  sections = (array[10] || []).map do |section|
    [section.title, section]
  end

  @sections = Hash[*sections.flatten]
  @current_section = add_section nil

  @in_files = []

  (array[11] || []).each do |filename|
    record_location RDoc::TopLevel.new filename
  end

  @parent_name  = array[12]
  @parent_class = array[13]
end

#merge(class_module) ⇒ Object

Merges class_module into this ClassModule.

The data in class_module is preferred over the receiver.


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# File 'lib/rdoc/class_module.rb', line 435

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

#merge_collections(mine, other, other_files, &block) ⇒ Object

Merges collection mine with other preferring other. other_files is used to help determine which items should be deleted.

Yields whether the item should be added or removed (true or false) and the item to be added or removed.

merge_collections things, other.things, other.in_files do |add, thing|
  if add then
    # add the thing
  else
    # remove the thing
  end
end

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# File 'lib/rdoc/class_module.rb', line 519

def merge_collections mine, other, other_files, &block # :nodoc:
  my_things    = mine. group_by { |thing| thing.file }
  other_things = other.group_by { |thing| thing.file }

  remove_things my_things, other_files,  &block
  add_things    my_things, other_things, &block
end

#merge_sections(cm) ⇒ Object

Merges the comments in this ClassModule with the comments in the other ClassModule cm.


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# File 'lib/rdoc/class_module.rb', line 531

def merge_sections cm # :nodoc:
  my_sections    =    sections.group_by { |section| section.title }
  other_sections = cm.sections.group_by { |section| section.title }

  other_files = cm.in_files

  remove_things my_sections, other_files do |_, section|
    @sections.delete section.title
  end

  other_sections.each do |group, sections|
    if my_sections.include? group
      my_sections[group].each do |my_section|
        other_section = cm.sections_hash[group]

        my_comments    = my_section.comments
        other_comments = other_section.comments

        other_files = other_section.in_files

        merge_collections my_comments, other_comments, other_files do |add, comment|
          if add then
            my_section.add_comment comment
          else
            my_section.remove_comment comment
          end
        end
      end
    else
      sections.each do |section|
        add_section group, section.comments
      end
    end
  end
end

#module?Boolean

Does this object represent a module?

Returns:

  • (Boolean)

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# File 'lib/rdoc/class_module.rb', line 570

def module?
  false
end

#name=(new_name) ⇒ Object

Allows overriding the initial name.

Used for modules and classes that are constant aliases.


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# File 'lib/rdoc/class_module.rb', line 579

def name= new_name
  @name = new_name
end

#name_for_pathObject

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


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# File 'lib/rdoc/class_module.rb', line 622

def name_for_path
  is_alias_for ? is_alias_for.full_name : full_name
end

#non_aliasesObject

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


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# File 'lib/rdoc/class_module.rb', line 631

def non_aliases
  @non_aliases ||= classes_and_modules.reject { |cm| cm.is_alias_for }
end

#parse(comment_location) ⇒ Object

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


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# File 'lib/rdoc/class_module.rb', line 587

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

#pathObject

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


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# File 'lib/rdoc/class_module.rb', line 613

def path
  http_url @store.rdoc.generator.class_dir
end

#remove_nodoc_childrenObject

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.


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# File 'lib/rdoc/class_module.rb', line 643

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

#remove_things(my_things, other_files) ⇒ Object

:nodoc:


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# File 'lib/rdoc/class_module.rb', line 657

def remove_things my_things, other_files # :nodoc:
  my_things.delete_if do |file, things|
    next false unless other_files.include? file

    things.each do |thing|
      yield false, thing
    end

    true
  end
end

#search_recordObject

Search record used by RDoc::Generator::JsonIndex


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# File 'lib/rdoc/class_module.rb', line 672

def search_record
  [
    name,
    full_name,
    full_name,
    '',
    path,
    '',
    snippet(@comment_location),
  ]
end

#store=(store) ⇒ Object

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


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# File 'lib/rdoc/class_module.rb', line 687

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

#superclassObject

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


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# File 'lib/rdoc/class_module.rb', line 701

def superclass
  @store.find_class_named(@superclass) || @superclass
end

#superclass=(superclass) ⇒ Object

Set the superclass of this class to superclass

Raises:

  • (NoMethodError)

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# File 'lib/rdoc/class_module.rb', line 708

def superclass=(superclass)
  raise NoMethodError, "#{full_name} is a module" if module?
  @superclass = superclass
end

#to_sObject

:nodoc:


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# File 'lib/rdoc/class_module.rb', line 713

def to_s # :nodoc:
  if is_alias_for then
    "#{self.class.name} #{self.full_name} -> #{is_alias_for}"
  else
    super
  end
end

#typeObject

'module' or 'class'


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# File 'lib/rdoc/class_module.rb', line 724

def type
  module? ? 'module' : 'class'
end

#update_aliasesObject

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.


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# File 'lib/rdoc/class_module.rb', line 743

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_extendsObject

Deletes from #extends those whose module has been removed from the documentation. – FIXME: like update_includes, extends are not reliably removed


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# File 'lib/rdoc/class_module.rb', line 791

def update_extends
  extends.reject! do |ext|
    mod = ext.module

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

  extends.uniq!
end

#update_includesObject

Deletes from #includes those whose module has been removed from the documentation. – FIXME: includes are not reliably removed, see _possible_bug test case


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# File 'lib/rdoc/class_module.rb', line 776

def update_includes
  includes.reject! do |include|
    mod = include.module
    !(String === mod) && @store.modules_hash[mod.full_name].nil?
  end

  includes.uniq!
end