Module: RactorRailsShim::Freezers::GlobalConstantFreezer

Extended by:
RoleDefaults
Defined in:
lib/ractor_rails_shim/roles/freezers.rb

Constant Summary collapse

TARGETS =

Mutable target list — downstream apps can register their own DATE_FORMATS-style constants via add_target without monkey-patching. Read at boot time (main Ractor only) before workers spawn.

%w[Time Date DateTime]
CONSTANT_NAME = 
:DATE_FORMATS

Class Method Summary collapse

Methods included from RoleDefaults

default_funnel, default_reassign_shareable_const, default_safe_const_get

Class Method Details

.add_target(class_name) ⇒ Object 



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# File 'lib/ractor_rails_shim/roles/freezers.rb', line 182

def self.add_target(class_name)
  TARGETS << class_name unless TARGETS.include?(class_name)
end

.call ⇒ Object 



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# File 'lib/ractor_rails_shim/roles/freezers.rb', line 186

def self.call
  constants = TARGETS.filter_map do |n|
    mod = safe_const_get.call(n)
    mod.is_a?(Module) ? [mod, CONSTANT_NAME] : nil
  end
  constants.each do |mod, name|
    next unless mod.const_defined?(name, false)
    val = mod.const_get(name, false)
    next if Ractor.shareable?(val)
    shareable = if val.is_a?(Hash)
      h = {}
      val.each { |k, v| h[k] = v if Ractor.shareable?(v) }
      h.freeze
    elsif val.is_a?(Array)
      val.select { |v| Ractor.shareable?(v) }.freeze
    else
      val
    end
    begin
      mod.send(:remove_const, name) if mod.const_defined?(name, false)
      mod.const_set(name, shareable)
    rescue StandardError => e
      funnel.call("freeze global constant #{mod}::#{name}") { raise e }
    end
  end
  true
end

.configure(safe_const_get: nil, funnel: nil) ⇒ Object 



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# File 'lib/ractor_rails_shim/roles/freezers.rb', line 158

def self.configure(safe_const_get: nil, funnel: nil)
  @safe_const_get = safe_const_get
  @funnel = funnel
end

.funnel ⇒ Object 



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# File 'lib/ractor_rails_shim/roles/freezers.rb', line 172

def self.funnel
  @funnel || default_funnel
end

.reset_configuration ⇒ Object 



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# File 'lib/ractor_rails_shim/roles/freezers.rb', line 163

def self.reset_configuration
  @safe_const_get = nil
  @funnel = nil
end

.safe_const_get ⇒ Object 



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# File 'lib/ractor_rails_shim/roles/freezers.rb', line 168

def self.safe_const_get
  @safe_const_get || default_safe_const_get
end