Module: Capistrano::DataPlaneApi::Diggable

Included in:
Type
Defined in:
lib/capistrano/data_plane_api/diggable.rb

Overview

Include in a class to grant it the ‘#dig` method. It’s implemented so that it calls public methods.

Instance Method Summary collapse

Instance Method Details

#dig(*args) ⇒ Object

Extracts the nested value specified by the sequence of key objects by calling ‘dig` at each step, returning `nil` if any intermediate step is `nil`.

This implementation of ‘dig` uses `public_send` under the hood.

Returns:

  • (Object)

Raises:

  • (TypeError) —

    value has no #dig method



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# File 'lib/capistrano/data_plane_api/diggable.rb', line 15

def dig(*args)
  return unless args.size.positive?

  return unless respond_to?(key = args.shift)

  value = public_send(key)
  return if value.nil?
  return value if args.size.zero?
  raise ::TypeError, "#{value.class} does not have #dig method" unless value.respond_to?(:dig)

  value.dig(*args)
rescue ::ArgumentError
  nil
end