Class: Async::HTTP::Body::Rewindable

Inherits:
Wrapper show all
Defined in:
lib/async/http/body/rewindable.rb

Overview

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

Instance Attribute Summary

Attributes inherited from Wrapper

#body

Instance Method Summary collapse

Methods inherited from Wrapper

#close, #empty?, #finish, #length

Methods inherited from Readable

#close, #each, #empty?, #finish, #join, #length

Constructor Details

#initialize(body) ⇒ Rewindable

Returns a new instance of Rewindable.



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# File 'lib/async/http/body/rewindable.rb', line 28

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

Instance Method Details

#inspect ⇒ Object 



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# File 'lib/async/http/body/rewindable.rb', line 54

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

#read ⇒ Object 



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# File 'lib/async/http/body/rewindable.rb', line 35

def read
  if @index < @chunks.count
    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&.dup
end

#rewind ⇒ Object 



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# File 'lib/async/http/body/rewindable.rb', line 50

def rewind
  @index = 0
end