Adds attribute if not already there. If it is (as method(s) or
attribute), updates the comment if it was empty.
The attribute is registered only if it defines a new method. For instance,
attr_reader :foo will not be registered if method foo
exists, but attr_accessor :foo will be registered if method
foo exists, but foo= does not.
# File lib/rdoc/context.rb, line 286
def add_attribute attribute
return attribute unless @document_self
# mainly to check for redefinition of an attribute as a method
# TODO find a policy for 'attr_reader :foo' + 'def foo=()'
register = false
key = nil
if attribute.rw.index 'R' then
key = attribute.pretty_name
known = @methods_hash[key]
if known then
known.comment = attribute.comment if known.comment.empty?
elsif registered = @methods_hash[attribute.pretty_name << '='] and
RDoc::Attr === registered then
registered.rw = 'RW'
else
@methods_hash[key] = attribute
register = true
end
end
if attribute.rw.index 'W' then
key = attribute.pretty_name << '='
known = @methods_hash[key]
if known then
known.comment = attribute.comment if known.comment.empty?
elsif registered = @methods_hash[attribute.pretty_name] and
RDoc::Attr === registered then
registered.rw = 'RW'
else
@methods_hash[key] = attribute
register = true
end
end
if register then
attribute.visibility = @visibility
add_to @attributes, attribute
resolve_aliases attribute
end
attribute
end