Class: Patterns::Ruleset
- Inherits:
-
Object
- Object
- Patterns::Ruleset
- Defined in:
- lib/patterns/ruleset.rb
Direct Known Subclasses
Defined Under Namespace
Classes: EmptyRuleset
Class Attribute Summary collapse
-
.rule_names ⇒ Object
Returns the value of attribute rule_names.
Class Method Summary collapse
Instance Method Summary collapse
- #applicable? ⇒ Boolean
- #each(&block) ⇒ Object
- #forceable? ⇒ Boolean
-
#initialize(subject = nil) ⇒ Ruleset
constructor
A new instance of Ruleset.
- #not_applicable? ⇒ Boolean
- #not_satisfied? ⇒ Boolean
- #satisfied?(force: false) ⇒ Boolean
Constructor Details
#initialize(subject = nil) ⇒ Ruleset
Returns a new instance of Ruleset.
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# File 'lib/patterns/ruleset.rb', line 21 def initialize(subject = nil) raise EmptyRuleset if self.class.rules.empty? @rules = self.class.rules.map { |rule| rule.new(subject) } end |
Class Attribute Details
.rule_names ⇒ Object
Returns the value of attribute rule_names.
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# File 'lib/patterns/ruleset.rb', line 6 def rule_names @rule_names end |
Class Method Details
.add_rule(rule_name) ⇒ Object
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# File 'lib/patterns/ruleset.rb', line 15 def self.add_rule(rule_name) self.rule_names ||= [] self.rule_names << rule_name.to_sym self end |
.rules ⇒ Object
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# File 'lib/patterns/ruleset.rb', line 9 def self.rules (rule_names || []).map do |rule_name| rule_name.to_s.classify.constantize end end |
Instance Method Details
#applicable? ⇒ Boolean
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# File 'lib/patterns/ruleset.rb', line 39 def applicable? !not_applicable? end |
#each(&block) ⇒ Object
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# File 'lib/patterns/ruleset.rb', line 55 def each(&block) return enum_for(:each) unless block_given? rules.each do |rule_or_ruleset| if rule_or_ruleset.is_a?(Ruleset) rule_or_ruleset.each(&block) else yield rule_or_ruleset end end end |
#forceable? ⇒ Boolean
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# File 'lib/patterns/ruleset.rb', line 47 def forceable? rules.all? do |rule| rule.forceable? || rule.not_applicable? || rule.satisfied? end end |
#not_applicable? ⇒ Boolean
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# File 'lib/patterns/ruleset.rb', line 43 def not_applicable? rules.all?(&:not_applicable?) end |
#not_satisfied? ⇒ Boolean
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# File 'lib/patterns/ruleset.rb', line 35 def not_satisfied? !satisfied? end |
#satisfied?(force: false) ⇒ Boolean
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# File 'lib/patterns/ruleset.rb', line 27 def satisfied?(force: false) rules.all? do |rule| rule.satisfied? || rule.not_applicable? || (force && rule.forceable?) end end |