Class: JSI::Util::Private::MemoMap Private

Inherits:
Object
  • Object
show all
Defined in:
lib/jsi/util/private/memo_map.rb

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Direct Known Subclasses

Immutable, Mutable

Defined Under Namespace

Classes: Immutable, Mutable

Instance Method Summary collapse

Constructor Details

#initialize(key_by: nil, &block) ⇒ MemoMap

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns a new instance of MemoMap.



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# File 'lib/jsi/util/private/memo_map.rb', line 6

def initialize(key_by: nil, &block)
  @key_by = key_by
  @block = block || raise(ArgumentError, "no block given")

  # each result has its own mutex to update its memoized value thread-safely
  @result_mutexes = {}
  # another mutex to thread-safely initialize each result mutex
  @result_mutexes_mutex = Mutex.new

  @results = {}
end

Instance Method Details

#key_for(inputs) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/jsi/util/private/memo_map.rb', line 18

def key_for(inputs)
  if @key_by
    @key_by.call(**inputs)
  else
    inputs
  end
end