Class: RDoc::AnyMethod

Inherits:
MethodAttr show all
Includes:
TokenStream
Defined in:
lib/rdoc/any_method.rb

Overview

AnyMethod is the base class for objects representing methods

Direct Known Subclasses

GhostMethod, MetaMethod

Constant Summary collapse

MARSHAL_VERSION =
2

RDoc 4 Added calls_super Added parent name and class Added section title

3

RDoc 4.1 Added is_alias_for

3

Constants included from Text

Text::MARKUP_FORMAT, Text::TO_HTML_CHARACTERS

Instance Attribute Summary collapse

Attributes inherited from MethodAttr

#aliases, #block_params, #singleton, #text, #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

Instance Method Summary collapse

Methods included from TokenStream

#add_token, #add_tokens, #collect_tokens, #pop_token, to_html, #token_stream, #tokens_to_s

Methods inherited from MethodAttr

#<=>, #==, #add_line_numbers, #aref, #documented?, #find_method_or_attribute, #find_see, #full_name, #html_name, #initialize_copy, #initialize_visibility, #inspect, #markup_code, #name_prefix, #output_name, #parent_name, #path, #pretty_name, #pretty_print, #search_record, #see, #to_s, #type

Methods inherited from CodeObject

#display?, #documented?, #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, #description, #formatter

Methods included from Text

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

Constructor Details

#initialize(text, name) ⇒ AnyMethod

Creates a new AnyMethod with a token stream text and name


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# File 'lib/rdoc/any_method.rb', line 43

def initialize text, name
  super

  @c_function = nil
  @dont_rename_initialize = false
  @token_stream = nil
  @calls_super = false
  @superclass_method = nil
end

Instance Attribute Details

#c_functionObject

The C function that implements this method (if it was defined in a C file)


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# File 'lib/rdoc/any_method.rb', line 27

def c_function
  @c_function
end

#calls_superObject

If true this method uses super to call a superclass version


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# File 'lib/rdoc/any_method.rb', line 36

def calls_super
  @calls_super
end

#dont_rename_initializeObject

Don't rename #initialize to ::new


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# File 'lib/rdoc/any_method.rb', line 22

def dont_rename_initialize
  @dont_rename_initialize
end

#paramsObject

Parameters for this method


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# File 'lib/rdoc/any_method.rb', line 31

def params
  @params
end

Instance Method Details

#add_alias(an_alias, context = nil) ⇒ Object

Adds an_alias as an alias for this method in context.


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# File 'lib/rdoc/any_method.rb', line 56

def add_alias an_alias, context = nil
  method = self.class.new an_alias.text, an_alias.new_name

  method.record_location an_alias.file
  method.singleton = self.singleton
  method.params = self.params
  method.visibility = self.visibility
  method.comment = an_alias.comment
  method.is_alias_for = self
  @aliases << method
  context.add_method method if context
  method
end

#aref_prefixObject

Prefix for aref is 'method'.


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# File 'lib/rdoc/any_method.rb', line 73

def aref_prefix
  'method'
end

#arglistsObject

The call_seq or the param_seq with method name, if there is no call_seq.

Use this for displaying a method's argument lists.


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# File 'lib/rdoc/any_method.rb', line 82

def arglists
  if @call_seq then
    @call_seq
  elsif @params then
    "#{name}#{param_seq}"
  end
end

#call_seqObject

Different ways to call this method


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# File 'lib/rdoc/any_method.rb', line 93

def call_seq
  unless call_seq = _call_seq
    call_seq = is_alias_for._call_seq if is_alias_for
  end

  return unless call_seq

  deduplicate_call_seq(call_seq)
end

#call_seq=(call_seq) ⇒ Object

Sets the different ways you can call this method. If an empty call_seq is given nil is assumed.

See also #param_seq


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# File 'lib/rdoc/any_method.rb', line 109

def call_seq= call_seq
  return if call_seq.empty?

  @call_seq = call_seq
end

#is_alias_forObject

Loads is_alias_for from the internal name. Returns nil if the alias cannot be found.


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# File 'lib/rdoc/any_method.rb', line 119

def is_alias_for # :nodoc:
  case @is_alias_for
  when RDoc::MethodAttr then
    @is_alias_for
  when Array then
    return nil unless @store

    klass_name, singleton, method_name = @is_alias_for

    return nil unless klass = @store.find_class_or_module(klass_name)

    @is_alias_for = klass.find_method method_name, singleton
  end
end

#marshal_dumpObject

Dumps this AnyMethod for use by ri. See also #marshal_load


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# File 'lib/rdoc/any_method.rb', line 137

def marshal_dump
  aliases = @aliases.map do |a|
    [a.name, parse(a.comment)]
  end

  is_alias_for = [
    @is_alias_for.parent.full_name,
    @is_alias_for.singleton,
    @is_alias_for.name
  ] if @is_alias_for

  [ MARSHAL_VERSION,
    @name,
    full_name,
    @singleton,
    @visibility,
    parse(@comment),
    @call_seq,
    @block_params,
    aliases,
    @params,
    @file.relative_name,
    @calls_super,
    @parent.name,
    @parent.class,
    @section.title,
    is_alias_for,
  ]
end

#marshal_load(array) ⇒ Object

Loads this AnyMethod from array. For a loaded AnyMethod the following methods will return cached values:

  • #full_name

  • #parent_name


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# File 'lib/rdoc/any_method.rb', line 174

def marshal_load array
  initialize_visibility

  @dont_rename_initialize = nil
  @token_stream           = nil
  @aliases                = []
  @parent                 = nil
  @parent_name            = nil
  @parent_class           = nil
  @section                = nil
  @file                   = nil

  version        = array[0]
  @name          = array[1]
  @full_name     = array[2]
  @singleton     = array[3]
  @visibility    = array[4]
  @comment       = array[5]
  @call_seq      = array[6]
  @block_params  = array[7]
  #                      8 handled below
  @params        = array[9]
  #                      10 handled below
  @calls_super   = array[11]
  @parent_name   = array[12]
  @parent_title  = array[13]
  @section_title = array[14]
  @is_alias_for  = array[15]

  array[8].each do |new_name, comment|
    add_alias RDoc::Alias.new(nil, @name, new_name, comment, @singleton)
  end

  @parent_name ||= if @full_name =~ /#/ then
                     $`
                   else
                     name = @full_name.split('::')
                     name.pop
                     name.join '::'
                   end

  @file = RDoc::TopLevel.new array[10] if version > 0
end

#nameObject

Method name

If the method has no assigned name, it extracts it from #call_seq.


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

def name
  return @name if @name

  @name =
    @call_seq[/^.*?\.(\w+)/, 1] ||
    @call_seq[/^.*?(\w+)/, 1] ||
    @call_seq if @call_seq
end

#param_listObject

A list of this method's method and yield parameters. call-seq params are preferred over parsed method and block params.


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# File 'lib/rdoc/any_method.rb', line 236

def param_list
  if @call_seq then
    params = @call_seq.split("\n").last
    params = params.sub(/.*?\((.*)\)/, '\1')
    params = params.sub(/(\{|do)\s*\|([^|]*)\|.*/, ',\2')
  elsif @params then
    params = @params.sub(/\((.*)\)/, '\1')

    params << ",#{@block_params}" if @block_params
  elsif @block_params then
    params = @block_params
  else
    return []
  end

  if @block_params then
    # If this method has explicit block parameters, remove any explicit
    # &block
    params = params.sub(/,?\s*&\w+/, '')
  else
    params = params.sub(/\&(\w+)/, '\1')
  end

  params = params.gsub(/\s+/, '').split(',').reject(&:empty?)

  params.map { |param| param.sub(/=.*/, '') }
end

#param_seqObject

Pretty parameter list for this method. If the method's parameters were given by call-seq it is preferred over the parsed values.


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# File 'lib/rdoc/any_method.rb', line 268

def param_seq
  if @call_seq then
    params = @call_seq.split("\n").last
    params = params.sub(/[^( ]+/, '')
    params = params.sub(/(\|[^|]+\|)\s*\.\.\.\s*(end|\})/, '\1 \2')
  elsif @params then
    params = @params.gsub(/\s*\#.*/, '')
    params = params.tr_s("\n ", " ")
    params = "(#{params})" unless params[0] == ?(
  else
    params = ''
  end

  if @block_params then
    # If this method has explicit block parameters, remove any explicit
    # &block
    params = params.sub(/,?\s*&\w+/, '')

    block = @block_params.tr_s("\n ", " ")
    if block[0] == ?(
      block = block.sub(/^\(/, '').sub(/\)/, '')
    end
    params << " { |#{block}| ... }"
  end

  params
end

#store=(store) ⇒ Object

Sets the store for this method and its referenced code objects.


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# File 'lib/rdoc/any_method.rb', line 299

def store= store
  super

  @file = @store.add_file @file.full_name if @file
end

#superclass_methodObject

For methods that super, find the superclass method that would be called.


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# File 'lib/rdoc/any_method.rb', line 308

def superclass_method
  return unless @calls_super
  return @superclass_method if @superclass_method

  parent.each_ancestor do |ancestor|
    if method = ancestor.method_list.find { |m| m.name == @name } then
      @superclass_method = method
      break
    end
  end

  @superclass_method
end