Module: Enumerable

Defined in:
lib/tengine/support/core_ext/enumerable/deep_freeze.rb,
lib/tengine/support/core_ext/enumerable/map_to_hash.rb,
lib/tengine/support/core_ext/enumerable/each_next_tick.rb

Instance Method Summary collapse

Instance Method Details

#deep_freeze ⇒ Object 



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# File 'lib/tengine/support/core_ext/enumerable/deep_freeze.rb', line 2

def deep_freeze
  each do |i|
    case i
    when String # 1.8.7 tweak
      i.freeze
    when Enumerable
      i.deep_freeze
    else
      i.freeze
    end
  end
  freeze
end

#each_next_tick ⇒ Object

“You are not expected to understand this. … The real problem is

that we didn't understand what was going on either.''
                                                   Dennis Ritcie

Raises:

  • (ArgumentError) 


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# File 'lib/tengine/support/core_ext/enumerable/each_next_tick.rb', line 8

def each_next_tick
  raise ArgumentError, "no block given" unless block_given?
  nop = lambda do end
  self.reverse_each.inject nop do |block, obj|
    lambda do
      EM.next_tick do
        yield obj
        block.call
      end
    end
  end.call
end

#map_to_hash(key_method = nil, &block) ⇒ Object

このメソッド名はダサイので良い名前募集してます。



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# File 'lib/tengine/support/core_ext/enumerable/map_to_hash.rb', line 10

def map_to_hash(key_method = nil, &block)
  block ||= lambda{|i| i}
  inject({}) do |d, i|
    key = key_method ? i.send(key_method) : i
    raise Tengine::Support::UniqueKeyError, "duplicated key found: #{key.inspect}" unless d[key].nil?
    d[key] = block.call(i)
    d
  end
end