Module: TypedOperation::CallableResolver

Included in:
Pipeline::StepWrapper, SmartChain
Defined in:
lib/typed_operation/callable_resolver.rb

Overview

Utility module for resolving callable objects (operations, procs, chains) and determining how to invoke them (kwargs vs positional).

Instance Method Summary collapse

Instance Method Details

#extract_operation_class(operation) ⇒ Object

: (_Callable) -> untyped



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# File 'lib/typed_operation/callable_resolver.rb', line 9

def extract_operation_class(operation)
  case operation
  when Class then operation
  when TypedOperation::PartiallyApplied then operation.operation_class
  when TypedOperation::ChainedOperation then extract_operation_class(operation.instance_variable_get(:@left))
  when Proc then nil
  else operation.class
  end
end

#uses_kwargs?(operation) ⇒ Boolean

: (_Callable) -> bool

Returns:

  • (Boolean) 


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# File 'lib/typed_operation/callable_resolver.rb', line 20

def uses_kwargs?(operation)
  op_class = extract_operation_class(operation)
  return false unless op_class.respond_to?(:positional_parameters)

  positional = op_class.positional_parameters
  keywords = op_class.keyword_parameters

  keywords.any? && positional.empty?
end