Method: NameMagic#name=

Defined in:
lib/y_support/name_magic.rb

#name=(ɴ) ⇒ Object

Names an instance, cautiously (ie. no overwriting of existing names).



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# File 'lib/y_support/name_magic.rb', line 119

def name=( ɴ )
  old_ɴ = namespace.__instances__[ self ]    # previous name
  if ɴ then puts "NameMagic: Naming with argument #{ɴ}." if DEBUG
    ɴ = namespace.send( :validate_name,     # honor the hook
                        namespace.name_set_closure.( ɴ, self, old_ɴ ) ).to_sym
    puts "NameMagic: Name adjusted to #{ɴ}." if DEBUG
    return if old_ɴ == ɴ                     # already named as required
    fail NameError, "Name '#{ɴ}' already exists in #{namespace} namespace!" if
      self.class.__instances__.rassoc( ɴ )
    namespace.const_set ɴ, self           # write a constant
    namespace.__instances__[ self ] = ɴ   # write to @instances
    namespace.__forget__ old_ɴ            # forget the old name of self
  else puts "NameMagic: Unnaming #{old_ɴ || self}" if DEBUG
    namespace.__instances__.update( self => nil ) # unname in @instances
    namespace.send :remove_const, old_ɴ if old_ɴ  # remove namespace const.
  end
end