Class | Hashery::StaticHash |
In: |
lib/hashery/static_hash.rb
|
Parent: | CRUDHash |
StaticHash ia a Hash object which raises an error if any previously-defined key attempts to be set again.
foo = StaticHash.new foo['name'] = 'Tom' #=> 'Tom' foo['age'] = 30 #=> 30 foo['name'] = 'Bob'
produces
ArgumentError: Duplicate key for StaticHash -- 'name'
StaticHash has it‘s orgins in Gavin Kistner‘s WriteOnceHash class found in his +basiclibrary.rb+ script.
TODO: Maybe StaticHash isn‘t bets name for this class?