Class: Dry::Transaction::Step Private

Inherits:
Object
  • Object
show all
Includes:
Monads::Result::Mixin
Defined in:
lib/dry/transaction/step.rb

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Constant Summary collapse

UNDEFINED =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future. 

Object.new.freeze
RETURN =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future. 

-> x { x }

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(step_adapter, step_name, operation_name, operation, options, call_args = []) ⇒ Step

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns a new instance of Step.



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# File 'lib/dry/transaction/step.rb', line 25

def initialize(step_adapter, step_name, operation_name, operation, options, call_args = [])
  @step_adapter = StepAdapter[step_adapter, operation, **options, step_name: step_name, operation_name: operation_name]
  @step_name = step_name
  @operation_name = operation_name
  @call_args = call_args
end

Instance Attribute Details

#call_args ⇒ Object (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/dry/transaction/step.rb', line 23

def call_args
  @call_args
end

#operation_name ⇒ Object (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/dry/transaction/step.rb', line 22

def operation_name
  @operation_name
end

#step_adapter ⇒ Object (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/dry/transaction/step.rb', line 20

def step_adapter
  @step_adapter
end

#step_name ⇒ Object (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/dry/transaction/step.rb', line 21

def step_name
  @step_name
end

Instance Method Details

#arity ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/dry/transaction/step.rb', line 70

def arity
  step_adapter.operation.arity
end

#call(input, continue = RETURN) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/dry/transaction/step.rb', line 48

def call(input, continue = RETURN)
  args = [input, *call_args]

  if step_adapter.yields?
    with_broadcast(args) { step_adapter.(args, &continue) }
  else
    continue.(with_broadcast(args) { step_adapter.(args) })
  end
end

#operation ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/dry/transaction/step.rb', line 74

def operation
  step_adapter.operation
end

#with(operation: UNDEFINED, call_args: UNDEFINED) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/dry/transaction/step.rb', line 32

def with(operation: UNDEFINED, call_args: UNDEFINED)
  return self if operation == UNDEFINED && call_args == UNDEFINED

  new_operation = operation == UNDEFINED ? step_adapter.operation : operation
  new_call_args = call_args == UNDEFINED ? self.call_args : Array(call_args)

  self.class.new(
    step_adapter,
    step_name,
    operation_name,
    new_operation,
    step_adapter.options,
    new_call_args
  )
end

#with_broadcast(args) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/dry/transaction/step.rb', line 58

def with_broadcast(args)
  publish(:step, step_name: step_name, args: args)

  yield.fmap { |value|
    publish(:step_succeeded, step_name: step_name, args: args, value: value)
    value
  }.or { |value|
    publish(:step_failed, step_name: step_name, args: args, value: value)
    Failure(StepFailure.new(self, value))
  }
end