Make the state hash fully thread safe

Fixes issue described here: ruby-concurrency/concurrent-ruby#970
mensfeld · Nov 20, 2022 · bc0c836 · bc0c836
1 parent 8b1e421
commit bc0c836
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/finite_machine/hooks.rb b/lib/finite_machine/hooks.rb
@@ -18,7 +18,7 @@ class Hooks
     def initialize
       @hooks_map = Concurrent::Map.new do |events_hash, hook_event|
         events_hash[hook_event] = Concurrent::Map.new do |state_hash, name|
-          state_hash[name] = []
+          state_hash.compute_if_absent(name) { [] }
         end
       end
     end