Class: StateMachine::BlacklistMatcher

Inherits:
Matcher
  • Object
show all
Defined in:
lib/state_machine/matcher.rb

Overview

Matches everything but a specific set of values

Instance Attribute Summary

Attributes inherited from Matcher

#values

Instance Method Summary (collapse)

Methods inherited from Matcher

#initialize

Constructor Details

This class inherits a constructor from StateMachine::Matcher

Instance Method Details

- (Object) description

A human-readable description of this matcher



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# File 'lib/state_machine/matcher.rb', line 96

def description
  "all - #{values.length == 1 ? values.first.inspect : values.inspect}"
end

- (Object) filter(values)

Finds all values that are not within the blacklist configured for this matcher



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# File 'lib/state_machine/matcher.rb', line 91

def filter(values)
  values - self.values
end

- (Boolean) matches?(value, context = {})

Checks whether the given value exists outside the blacklist configured for this matcher.

Examples

matcher = StateMachine::BlacklistMatcher.new([:parked, :idling])
matcher.matches?(:parked)       # => false
matcher.matches?(:first_gear)   # => true


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# File 'lib/state_machine/matcher.rb', line 85

def matches?(value, context = {})
  !values.include?(value)
end