module.exports = class Blob
constructor: (input, options={}) ->
switch input?.constructor
when undefined
@buffer = new Buffer 0
when Buffer
@buffer = input
when Number
@buffer = new Buffer input
when Array
@buffer = new Buffer 0
@buffer = Buffer.concat [@buffer, new Buffer(part)] for part in input
@type = options.type
@size = @buffer.length
slice: (start, end)->
new Blob @buffer.slice(start, end)