Module: RactorRailsShim::ActionDispatchStrategy

Defined in:
lib/ractor_rails_shim/patches/action_dispatch.rb

Overview

RactorRailsShim::ActionDispatchStrategy — the role object that identifies which ActionDispatch strategy a Proc is and returns its shareable replacement (extracted from the facade god module in Step 22.5, Issue #22; POODR §1 SRP).

The Proc stored in ActionDispatch::Routing::Mapper::Constraints#@strategy is the constant SERVE or CALL (assigned by reference), so equal? is the robust identifier — independent of the source line number, which any Rails patch release can shift. Returns NoOpProc for an unknown Proc (defensive; never mis-route).

The facade method _strategy_replacement_for delegates to .replacement_for until Issue #31 removes it. NoOpProc, StrategyServe, StrategyCall (defined above on the singleton class) are collaborators reached through the facade; Issue #23 will inject them as constructor arguments.

Class Method Summary collapse

Class Method Details

.configure(noop_proc_class: nil, strategy_serve_class: nil, strategy_call_class: nil) ⇒ Object 



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# File 'lib/ractor_rails_shim/patches/action_dispatch.rb', line 870

def self.configure(noop_proc_class: nil, strategy_serve_class: nil, strategy_call_class: nil)
  @noop_proc_class = noop_proc_class
  @strategy_serve_class = strategy_serve_class
  @strategy_call_class = strategy_call_class
end

.noop_proc_class ⇒ Object 



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# File 'lib/ractor_rails_shim/patches/action_dispatch.rb', line 882

def self.noop_proc_class
  @noop_proc_class || RactorRailsShim.singleton_class.const_get(:NoOpProc)
end

.replacement_for(proc_obj) ⇒ Object

Return the shareable replacement for the given strategy Proc. SERVE -> strategy_serve_class, CALL -> strategy_call_class, unknown -> noop_proc_class.



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# File 'lib/ractor_rails_shim/patches/action_dispatch.rb', line 897

def self.replacement_for(proc_obj)
  constraints = defined?(::ActionDispatch::Routing::Mapper::Constraints) ?
    ::ActionDispatch::Routing::Mapper::Constraints : nil
  return noop_proc_class.new unless constraints
  return strategy_serve_class.new if proc_obj.equal?(constraints::SERVE)
  return strategy_call_class.new if proc_obj.equal?(constraints::CALL)
  noop_proc_class.new
end

.reset_configuration ⇒ Object 



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# File 'lib/ractor_rails_shim/patches/action_dispatch.rb', line 876

def self.reset_configuration
  @noop_proc_class = nil
  @strategy_serve_class = nil
  @strategy_call_class = nil
end

.strategy_call_class ⇒ Object 



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# File 'lib/ractor_rails_shim/patches/action_dispatch.rb', line 890

def self.strategy_call_class
  @strategy_call_class || RactorRailsShim.singleton_class.const_get(:StrategyCall)
end

.strategy_serve_class ⇒ Object 



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# File 'lib/ractor_rails_shim/patches/action_dispatch.rb', line 886

def self.strategy_serve_class
  @strategy_serve_class || RactorRailsShim.singleton_class.const_get(:StrategyServe)
end