Class: FunctionalLightService::Option

Inherits:
Object
  • Object
show all
Defined in:
lib/functional-light-service/functional/option.rb

Defined Under Namespace

Classes: Some

Class Method Summary collapse

Class Method Details

.any?(expr) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/functional-light-service/functional/option.rb', line 23

def any?(expr)
  to_option(expr) { expr.nil? || (expr.respond_to?(:empty?) && expr.empty?) }
end

.some?(expr) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/functional-light-service/functional/option.rb', line 19

def some?(expr)
  to_option(expr) { expr.nil? }
end

.to_option(expr) ⇒ Object 



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# File 'lib/functional-light-service/functional/option.rb', line 27

def to_option(expr)
  yield(expr) ? None.new : Some.new(expr)
end

.try! ⇒ Object 



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# File 'lib/functional-light-service/functional/option.rb', line 31

def try!
  yield
rescue StandardError
  None.new
end