class Hash

Performs a deep clone of the object with optional substitutions

@param substitutions [Hash] optional mapping of substitutions.

If provided during copying any matching substitutions.key in the original will be replaced with the substitutions.value in the clone

@param object [Object] the object to duplicate. This is a recursive call and will continue until resolving to a [String] or [Numeric] @return [Hash] the deeply copyed object with any substitutions performed

@example

{ 'needle' => 'test' }.deep_dup(substitutions: { 'needle' => 'dog' }) #=> { 'dog' => 'test' }

# File lib/xcunique/hash_ext.rb, line 12
def deep_dup substitutions: {}, object: self
  recurse = -> object { deep_dup substitutions: substitutions, object: object }
  
  case object
  when Hash
    Hash[object.map(&recurse)]
  when Array
    object.map(&recurse)
  when String, Numeric
    substitutions[object] || object
  end
end