Module: Petra::Proxies::EnumerableProxy

Includes:
ModuleProxy
Defined in:
lib/petra/proxies/enumerable_proxy.rb

Overview

Module Proxy which is used to proxy classes which include Enumerable, such as Enumerator or Array. It contains wrappers for the default enumerator functions to ensure that objects yielded to their blocks are correctly wrapped in Petra proxies (if needed)

Defined Under Namespace

Modules: InstanceMethods

Constant Summary collapse

MODULE_NAMES = 
%w[Enumerable].freeze
INCLUDES = 
[Enumerable].freeze

Class Method Summary collapse

Class Method Details

.proxy_entries(enum, surrogate_method: '[]') ⇒ Array<Petra::Proxies::ObjectProxy>

Ensures the the objects yielded to blocks are actually petra proxies. This is necessary as the internal call to each would be forwarded to the actual Enumerable object and result in unproxied objects.

This method will only proxy objects which allow this through the class config as the enum’s entries are seen as inherited objects. ‘[]` is used as method causing the proxy creation as it’s closest to what’s actually happening.

Returns:



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# File 'lib/petra/proxies/enumerable_proxy.rb', line 39

def self.proxy_entries(enum, surrogate_method: '[]')
  enum.entries.map { |o| o.petra(inherited: true, configuration_args: [surrogate_method]) }
end