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##
# An attribute created by \#attr, \#attr_reader, \#attr_writer or
# \#attr_accessor
class RDoc::Attr < RDoc::MethodAttr
##
# 3::
# RDoc 4
# Added parent name and class
# Added section title
MARSHAL_VERSION = 3 # :nodoc:
##
# Is the attribute readable ('R'), writable ('W') or both ('RW')?
attr_accessor :rw
##
# Creates a new Attr with body +text+, +name+, read/write status +rw+ and
# +comment+. +singleton+ marks this as a class attribute.
def initialize(text, name, rw, comment, singleton = false)
super text, name
@rw = rw
@singleton = singleton
self.comment = comment
end
##
# Attributes are equal when their names, singleton and rw are identical
def == other
self.class == other.class and
self.name == other.name and
self.rw == other.rw and
self.singleton == other.singleton
end
##
# Add +an_alias+ as an attribute in +context+.
def add_alias(an_alias, context)
new_attr = self.class.new(self.text, an_alias.new_name, self.rw,
self.comment, self.singleton)
new_attr.record_location an_alias.file
new_attr.visibility = self.visibility
new_attr.is_alias_for = self
@aliases << new_attr
context.add_attribute new_attr
new_attr
end
##
# The #aref prefix for attributes
def aref_prefix
'attribute'
end
##
# Attributes never call super. See RDoc::AnyMethod#calls_super
#
# An RDoc::Attr can show up in the method list in some situations (see
# Gem::ConfigFile)
def calls_super # :nodoc:
false
end
##
# Returns attr_reader, attr_writer or attr_accessor as appropriate.
def definition
case @rw
when 'RW' then 'attr_accessor'
when 'R' then 'attr_reader'
when 'W' then 'attr_writer'
end
end
def inspect # :nodoc:
alias_for = @is_alias_for ? " (alias for #{@is_alias_for.name})" : nil
visibility = self.visibility
visibility = "forced #{visibility}" if force_documentation
"#<%s:0x%x %s %s (%s)%s>" % [
self.class, object_id,
full_name,
rw,
visibility,
alias_for,
]
end
##
# Dumps this Attr for use by ri. See also #marshal_load
def marshal_dump
[ MARSHAL_VERSION,
@name,
full_name,
@rw,
@visibility,
parse(@comment),
singleton,
@file.relative_name,
@parent.full_name,
@parent.class,
@section.title
]
end
##
# Loads this Attr from +array+. For a loaded Attr the following
# methods will return cached values:
#
# * #full_name
# * #parent_name
def marshal_load array
initialize_visibility
@aliases = []
@parent = nil
@parent_name = nil
@parent_class = nil
@section = nil
@file = nil
version = array[0]
@name = array[1]
@full_name = array[2]
@rw = array[3]
@visibility = array[4]
@comment = array[5]
@singleton = array[6] || false # MARSHAL_VERSION == 0
# 7 handled below
@parent_name = array[8]
@parent_class = array[9]
@section_title = array[10]
@file = RDoc::TopLevel.new array[7] if version > 1
@parent_name ||= @full_name.split('#', 2).first
end
def pretty_print q # :nodoc:
q.group 2, "[#{self.class.name} #{full_name} #{rw} #{visibility}", "]" do
unless comment.empty? then
q.breakable
q.text "comment:"
q.breakable
q.pp @comment
end
end
end
def to_s # :nodoc:
"#{definition} #{name} in: #{parent}"
end
##
# Attributes do not have token streams.
#
# An RDoc::Attr can show up in the method list in some situations (see
# Gem::ConfigFile)
def token_stream # :nodoc:
end
end