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✏️ Editing: hash_with_indifferent_access.rb

class Bundler::Thor
  module CoreExt #:nodoc:
    # A hash with indifferent access and magic predicates.
    #
    #   hash = Bundler::Thor::CoreExt::HashWithIndifferentAccess.new 'foo' => 'bar', 'baz' => 'bee', 'force' => true
    #
    #   hash[:foo]  #=> 'bar'
    #   hash['foo'] #=> 'bar'
    #   hash.foo?   #=> true
    #
    class HashWithIndifferentAccess < ::Hash #:nodoc:
      def initialize(hash = {})
        super()
        hash.each do |key, value|
          self[convert_key(key)] = value
        end
      end

def [](key)
        super(convert_key(key))
      end

def []=(key, value)
        super(convert_key(key), value)
      end

def delete(key)
        super(convert_key(key))
      end

def fetch(key, *args)
        super(convert_key(key), *args)
      end

def key?(key)
        super(convert_key(key))
      end

def values_at(*indices)
        indices.map { |key| self[convert_key(key)] }
      end

def merge(other)
        dup.merge!(other)
      end

def merge!(other)
        other.each do |key, value|
          self[convert_key(key)] = value
        end
        self
      end

def reverse_merge(other)
        self.class.new(other).merge(self)
      end

def reverse_merge!(other_hash)
        replace(reverse_merge(other_hash))
      end

def replace(other_hash)
        super(other_hash)
      end

# Convert to a Hash with String keys.
      def to_hash
        Hash.new(default).merge!(self)
      end

protected

def convert_key(key)
        key.is_a?(Symbol) ? key.to_s : key
      end

# Magic predicates. For instance:
      #
      #   options.force?                  # => !!options['force']
      #   options.shebang                 # => "/usr/lib/local/ruby"
      #   options.test_framework?(:rspec) # => options[:test_framework] == :rspec
      #
      def method_missing(method, *args)
        method = method.to_s
        if method =~ /^(\w+)\?$/
          if args.empty?
            !!self[$1]
          else
            self[$1] == args.first
          end
        else
          self[method]
        end
      end
    end
  end
end

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