Class: Wallace::Koza::Ephemeral

Inherits:
Object
  • Object
show all
Defined in:
lib/modules/koza/ephemeral.rb

Overview

An ephemeral instance is a special type of terminal symbol which only assumes its value (from a set of possible values) once it is selected. The Ephemeral class is used to store the set of possible values that a given ephemeral instance can take.

It is possible to bias the selection of values by the Ephemeral by using a weighted collection or a distribution.

Parameters:

  • values, the range, set or collection of values instances of the ephemeral can assume.

Instance Method Summary collapse

Constructor Details

#initialize(values) ⇒ Ephemeral

Constructs a new Ephemeral.

Parameters:

  • values, the collection of values that instances of this ephemeral can take.



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# File 'lib/modules/koza/ephemeral.rb', line 15

def initialize(values)
  @values = values
end

Instance Method Details

#sample(opts = {}) ⇒ Object

Samples a possible value for this ephemeral.

Parameters:

  • opts, a hash of keyword parameters to this method. -> random, the RNG to use when sampling a value.



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# File 'lib/modules/koza/ephemeral.rb', line 24

def sample(opts = {})
  Wallace::Koza::EphemeralInstance.new(@values.sample)
end