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# encoding: utf-8
module NameMagic::ArrayMethods
# Maps an array of some objects into an array of their names,
# obtained by applying +#full_name+ method to them. Takes one
# optional argument, which regulates its behavior regarding
# unnamed objects. If set to _nil_ (default), unnamed objects
# will be mapped to _nil_ (default behavior of the +#name+
# method). If set to _true_, unnamed objects will be mapped to
# themselves. If set to _false_, unnamed objects will not be
# mapped at all -- the returned array will contain only the names
# of the named objects.
#
def names option=nil
# unnamed --> nil
return map &:name if option.nil?
# unnamed --> instance
return map { |e| e.name || e } if option == true
# unnamed squeezed out
return map( &:name ).compact if option == false
fail ArgumentError, "Unknown option: #{option}"
end
# FIXME: The remaining thing to do to achieve compatibility with
# Ruby's #name is to put "full_name" in the body, and "name" in
# the alias...
alias full_names names
# Maps an array to an array of the element names, obtained by
# applying +#_name_+ method to them. Takes one optional argument,
# which regulates its behavior regarding unnamed objects. If set
# to _nil_ (default) unnamed objects will be mapped to _nil_
# (default behavior of +#_name_+ method). If set to _true_,
# unnamed objects will be mapped to themselves. If set to
# _false_, unnamed objects will not be mapped at all -- the
# returned array will contain only the names of the named
# objects.
#
def _names_ option=nil
# unnamed --> nil
return map &:_name_ if option.nil?
# unnamed --> instance
return map { |e| e.name || e } if option == true
# unnamed squeezed out
return map( &:_name_ ).compact if option == false
fail ArgumentError, "Unknown option: #{option}"
end
alias ɴ _names_
end
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6 entries across 6 versions & 1 rubygems