class OpenFastStruct

# File lib/ofstruct.rb, line 2
def initialize(args = {})
  @members = {}
  update(args)
end

# File lib/ofstruct.rb, line 33
def ==(other)
  other.is_a?(self.class) && self.to_h == other.to_h
end

# File lib/ofstruct.rb, line 7
def delete_field(key)
  assign(key, self.class.new)
end

# File lib/ofstruct.rb, line 11
def each_pair
  @members.each_pair
end

# File lib/ofstruct.rb, line 24
def inspect
  "#<#{self.class}" + @members.map { |k, v| " :#{k}=#{v.inspect}" }.join + ">"
end

# File lib/ofstruct.rb, line 29
def to_ary
  nil
end

# File lib/ofstruct.rb, line 20
def to_h
  @members.merge(@members) { |_, v| v.is_a?(self.class) ? v.to_h : v }
end

# File lib/ofstruct.rb, line 15
def update(args)
  ensure_hash!(args)
  args.each { |k, v| assign(k, v) }
end

# File lib/ofstruct.rb, line 53
def assign(key, value)
  @members[key.to_sym] = value
end

# File lib/ofstruct.rb, line 39
def ensure_hash!(args)
  raise ArgumentError unless args.is_a?(Hash)
end

# File lib/ofstruct.rb, line 43
def method_missing(name, *args)
  @members.fetch(name) do
    if name[-1] == "="
      assign(name[0..-2], args.first)
    else
      delete_field(name)
    end
  end
end