class Protocol::HTTP::Body::Rewindable

A body which buffers all it’s contents as it is ‘#read`.

def self.wrap(message) 

def self.wrap(message)
	if body = message.body
		if body.rewindable?
			body
		else
			message.body = self.new(body)
		end
	end
end

def buffered

@returns [Buffered] the buffered body.

A rewindable body wraps some other body. Convert it to a buffered body. The buffered body will share the same chunks as the rewindable body. 
def buffered
	Buffered.new(@chunks)
end

def empty? 

def empty?
	(@index >= @chunks.size) && super
end

def initialize(body) 

def initialize(body)
	super(body)
	
	@chunks = []
	@index = 0
end

def inspect 

def inspect
	"\#<#{self.class} #{@index}/#{@chunks.size} chunks read>"
end

def read 

def read
	if @index < @chunks.size
		chunk = @chunks[@index]
		@index += 1
	else
		if chunk = super
			@chunks << -chunk
			@index += 1
		end
	end
	
	# We dup them on the way out, so that if someone modifies the string, it won't modify the rewindability.
	return chunk
end

def ready? 

def ready?
	(@index < @chunks.size) || super
end

def rewind 

def rewind
	@index = 0
end

def rewindable? 

def rewindable?
	true
end