Module: RactorRailsShim::Patches::HashComputeIfAbsent

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

Defined Under Namespace

Modules: Overrides

Class Method Summary collapse

Class Method Details

.install ⇒ Object

Install the Hash#compute_if_absent patch. Idempotent — the @installed flag lives on this object, not on the facade. Returns true once installed (and on subsequent no-op calls).



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# File 'lib/ractor_rails_shim/patches/hash_compute_if_absent.rb', line 72

def self.install
  @mutex.synchronize do
    return true if @installed
    if ::Hash.method_defined?(:compute_if_absent)
      @installed = true
      return true
    end
    ::Hash.prepend(Overrides)
    @installed = true
  end
  true
end

.installed? ⇒ Boolean

Reader for the idempotency flag. Owned by this role object.

Returns:

  • (Boolean) 


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# File 'lib/ractor_rails_shim/patches/hash_compute_if_absent.rb', line 86

def self.installed?
  @installed
end

.reset_installed_for_test! ⇒ Object

Test seam: reset the idempotency flag between specs. Production code never calls this — the prepend is permanent, but specs that re-run install need a clean slate for assertion purposes.



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# File 'lib/ractor_rails_shim/patches/hash_compute_if_absent.rb', line 93

def self.reset_installed_for_test!
  @mutex.synchronize { @installed = false }
end