git ssb

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'use strict'
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module.exports = function pull (a) {
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  var length = arguments.length
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  if (typeof a === 'function' && a.length === 1) {
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    var args = new Array(length)
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    for(var i = 0; i < length; i++)
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      args[i] = arguments[i]
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    return function (read) {
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      if (args == null) {
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        throw new TypeError("partial sink should only be called once!")
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      }
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      // Grab the reference after the check, because it's always an array now
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      // (engines like that kind of consistency).
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      var ref = args
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      args = null
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      // Prioritize common case of small number of pulls.
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      switch (length) {
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      case 1: return pull(read, ref[0])
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      case 2: return pull(read, ref[0], ref[1])
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      case 3: return pull(read, ref[0], ref[1], ref[2])
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      case 4: return pull(read, ref[0], ref[1], ref[2], ref[3])
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      default:
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        ref.unshift(read)
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        return pull.apply(null, ref)
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      }
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    }
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  }
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  var read = a
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  if (read && typeof read.source === 'function') {
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    read = read.source
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  }
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  for (var i = 1; i < length; i++) {
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    var s = arguments[i]
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    if (typeof s === 'function') {
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      read = s(read)
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    } else if (s && typeof s === 'object') {
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      s.sink(read)
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      read = s.source
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    }
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  }
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  return read
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}
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