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Class: Puma::NullIO

Relationships & Source Files
Inherits: Object
Defined in: lib/puma/null_io.rb

Overview

Provides an IO-like object that always appears to contain no data. Used as the value for rack.input when the request has no body.

Instance Attribute Summary

Instance Method Summary

Instance Attribute Details

#closed? ⇒ Boolean (readonly)

This is used as singleton class, so can’t have state.

[ GitHub ] 

  


# File 'lib/puma/null_io.rb', line 71



def closed?
  false
end


  








  

    #eof?  ⇒ Boolean  (readonly)
  

  [ GitHub ]


  

  


# File 'lib/puma/null_io.rb', line 49



def eof?
  true
end


  








  

    #sync   (rw)
  

  [ GitHub ]


  

  


# File 'lib/puma/null_io.rb', line 53



def sync
  true
end


  








  

    #sync=(v)   (rw)
  

  [ GitHub ]


  

  


# File 'lib/puma/null_io.rb', line 57



def sync=(v)
end


  







Instance Method Details



  

    #close  
  

  [ GitHub ]


  

  


# File 'lib/puma/null_io.rb', line 42



def close
end


  








  

    #each  
  

  [ GitHub ]


  

  


# File 'lib/puma/null_io.rb', line 16



def each
end


  








  

    #flush  
  

  [ GitHub ]


  

  


# File 'lib/puma/null_io.rb', line 66



def flush
  self
end


  








  

    #gets  
  

  [ GitHub ]


  

  


# File 'lib/puma/null_io.rb', line 8



def gets
  nil
end


  








  

    #puts(*ary)  
  

  [ GitHub ]


  

  


# File 'lib/puma/null_io.rb', line 60



def puts(*ary)
end


  








  

    #read(length = nil, buffer = nil)  
  



  

    

Mimics IO#read with no data.


  



  [ GitHub ]


  

  


# File 'lib/puma/null_io.rb', line 21



def read(length = nil, buffer = nil)
  if length.to_i < 0
    raise ArgumentError, "(negative length #{length} given)"
  end

  buffer = if buffer.nil?
    "".b
  else
    String.try_convert(buffer) or raise TypeError, "no implicit conversion of #{buffer.class} into String"
  end
  buffer.clear
  if length.to_i > 0
    nil
  else
    buffer
  end
end


  








  

    #rewind  
  

  [ GitHub ]


  

  


# File 'lib/puma/null_io.rb', line 39



def rewind
end


  








  

    #size  
  

  [ GitHub ]


  

  


# File 'lib/puma/null_io.rb', line 45



def size
  0
end


  








  

    #string  
  

  [ GitHub ]


  

  


# File 'lib/puma/null_io.rb', line 12



def string
  ""
end


  








  

    #write(*ary)  
  

  [ GitHub ]


  

  


# File 'lib/puma/null_io.rb', line 63



def write(*ary)
end