Module: RactorRailsShim::FallbackBuilder::ValueLookup

Defined in:

lib/ractor_rails_shim/roles/fallback_builder.rb

Overview

ValueLookup: Chain of Responsibility for resolving class_attribute / mattr_accessor values during fallback build (Issue #40, POODR §5b). Each link is a module responding to .lookup(owner_name, attr_name, ies_key, **ctx) -> val|nil. The chain is walked in order; the first non-nil value wins. The five sequential if val.nil? && ... branches in build! become a loop over the chain — adding a new lookup source is a one-line module instead of a new elsif.

Defined Under Namespace

Modules: ClassAttrValues, Cvar, Ies, Ivar, RailsSend

Constant Summary

DEFAULT_CHAIN =

The default lookup chain, walked in order by build!. Frozen at load time; the configure seam injects a custom chain for tests.

[
  Ies,
  ClassAttrValues,
  Cvar,
  Ivar,
  RailsSend,
].freeze