Class: EnumeratedType

Inherits:
Object show all
Defined in:
lib/mega/enumerated_type.rb

Overview

:title: EnumeratedType

EnumeratedType lets you create enumerated types like this:

class OutputType < EnumeratedType
AUTODETECT
UNKNOWN
NOSOUND
WAVWRITER
DSOUND
WINMM
ASIO
OSS
ALSA
ESD
SOUNDMANAGER
COREAUDIO
XBOX
PS2
GC
XBOX360
PSP
end

If you want to start with a different integer than 0, you can just do:

class OutputType < EnumeratedType
start 15
AUTODETECT
...
end

You can also use start anywhere in the list, to have subsequent constants enumerated starting with the given value.

Author(s)

  • James Buck

Class Method Summary collapse

Class Method Details

.const_missing(sym) ⇒ Object 



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# File 'lib/mega/enumerated_type.rb', line 69

def const_missing(sym)
  @next_value ||= 0
  const_set(sym, @next_value)
  @next_value += 1
end

.start(n) ⇒ Object 



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# File 'lib/mega/enumerated_type.rb', line 65

def start(n)
  @next_value = n
end