Class: Rescuer::Failure

Inherits:
Struct
  • Object
show all
Defined in:
lib/rescuer.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(exception, exceptions_to_rescue = nil) ⇒ Failure

Returns a new instance of Failure.

Raises:

  • (ArgumentError) 


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# File 'lib/rescuer.rb', line 102

def initialize(exception, exceptions_to_rescue = nil)
  super(exception, exceptions_to_rescue)
  raise ArgumentError, 'not an exception' unless exception.is_a? Exception
  freeze
end

Instance Attribute Details

#exception ⇒ Object

Returns the value of attribute exception



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# File 'lib/rescuer.rb', line 101

def exception
  @exception
end

#exceptions_to_rescue ⇒ Object

Returns the value of attribute exceptions_to_rescue



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# File 'lib/rescuer.rb', line 101

def exceptions_to_rescue
  @exceptions_to_rescue
end

Instance Method Details

#each ⇒ Object 



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# File 'lib/rescuer.rb', line 140

def each
  self
end

#failed ⇒ Object 



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# File 'lib/rescuer.rb', line 128

def failed
  Success.new(exception)
end

#failure? ⇒ Boolean 



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# File 'lib/rescuer.rb', line 112

def failure?
  true
end

#flat_map ⇒ Object 



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# File 'lib/rescuer.rb', line 132

def flat_map
  self
end

#flatten(depth = nil) ⇒ Object 



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# File 'lib/rescuer.rb', line 161

def flatten(depth = nil)
  self
end

#get ⇒ Object 



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# File 'lib/rescuer.rb', line 116

def get
  raise exception
end

#get_or_else(default) ⇒ Object 



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# File 'lib/rescuer.rb', line 120

def get_or_else(default)
  default
end

#map ⇒ Object 



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# File 'lib/rescuer.rb', line 136

def map
  self
end

#or_else(other) ⇒ Object 



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# File 'lib/rescuer.rb', line 124

def or_else(other)
  other
end

#recover ⇒ Object 



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# File 'lib/rescuer.rb', line 153

def recover
  failed.map { |e| yield e }
end

#recover_with ⇒ Object 



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# File 'lib/rescuer.rb', line 157

def recover_with
  failed.flat_map { |e| yield e }
end

#select ⇒ Object Also known as: find_all 



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# File 'lib/rescuer.rb', line 144

def select
  self
end

#success? ⇒ Boolean 



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# File 'lib/rescuer.rb', line 108

def success?
  false
end

#transform(f_success, f_failure) ⇒ Object 



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# File 'lib/rescuer.rb', line 149

def transform(f_success, f_failure)
  failed.flat_map { |e| f_failure.call(e) }
end