Rack::Response

# File lib/rack/response.rb, line 25
def initialize(body=[], status=200, header={})
  @status = status.to_i
  @header = Utils::HeaderHash.new.merge(header)

  @chunked = CHUNKED == @header[TRANSFER_ENCODING]
  @writer  = lambda { |x| @body << x }
  @block   = nil
  @length  = 0

  @body = []

  if body.respond_to? :to_str
    write body.to_str
  elsif body.respond_to?(:each)
    body.each { |part|
      write part.to_s
    }
  else
    raise TypeError, "stringable or iterable required"
  end

  yield self  if block_given?
end

# File lib/rack/response.rb, line 52
def [](key)
  header[key]
end

# File lib/rack/response.rb, line 56
def []=(key, value)
  header[key] = value
end

# File lib/rack/response.rb, line 107
def close
  body.close if body.respond_to?(:close)
end

# File lib/rack/response.rb, line 64
def delete_cookie(key, value={})
  Utils.delete_cookie_header!(header, key, value)
end

# File lib/rack/response.rb, line 88
def each(&callback)
  @body.each(&callback)
  @writer = callback
  @block.call(self)  if @block
end

# File lib/rack/response.rb, line 111
def empty?
  @block == nil && @body.empty?
end

# File lib/rack/response.rb, line 73
def finish(&block)
  @block = block

  if [204, 205, 304].include?(status.to_i)
    header.delete CONTENT_TYPE
    header.delete CONTENT_LENGTH
    close
    [status.to_i, header, []]
  else
    [status.to_i, header, BodyProxy.new(self){}]
  end
end

# File lib/rack/response.rb, line 68
def redirect(target, status=302)
  self.status = status
  self["Location"] = target
end

# File lib/rack/response.rb, line 60
def set_cookie(key, value)
  Utils.set_cookie_header!(header, key, value)
end

# File lib/rack/response.rb, line 98
def write(str)
  s = str.to_s
  @length += Rack::Utils.bytesize(s) unless @chunked
  @writer.call s

  header[CONTENT_LENGTH] = @length.to_s unless @chunked
  str
end