class Fire::State

Fire’s logic system is a *set logic* system. That means an empty set, ‘[]` is treated as `false` and a non-empty set is `true`.

Fire handles complex logic by building-up lazy logic constructs. It’s logical operators are defined using single charcter symbols, e.g. ‘&` and `|`.

Public Class Methods

new(&procedure) click to toggle source
# File lib/fire/state.rb, line 11
def initialize(&procedure)
  @procedure = procedure
end

Public Instance Methods

&(other) click to toggle source

set and

# File lib/fire/state.rb, line 25
def &(other)
  State.new{ set(self.call) & set(other.call) }
end
call() click to toggle source
# File lib/fire/state.rb, line 15
def call
  set @procedure.call
end
|(other) click to toggle source

set or

# File lib/fire/state.rb, line 20
def |(other)
  State.new{ set(self.call) | set(other.call) }
end

Private Instance Methods

set(value) click to toggle source
# File lib/fire/state.rb, line 32
def set(value)
  case value
  when Array
    value.compact
  when Boolean
    value ? true : []
  else
    [value]
  end
end