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files >> //lib/node_modules/npm/node_modules/pumpify/index.js
var pump = require('pump') var inherits = require('inherits') var Duplexify = require('duplexify') var toArray = function(args) { if (!args.length) return [] return Array.isArray(args[0]) ? args[0] : Array.prototype.slice.call(args) } var define = function(opts) { var Pumpify = function() { var streams = toArray(arguments) if (!(this instanceof Pumpify)) return new Pumpify(streams) Duplexify.call(this, null, null, opts) if (streams.length) this.setPipeline(streams) } inherits(Pumpify, Duplexify) Pumpify.prototype.setPipeline = function() { var streams = toArray(arguments) var self = this var ended = false var w = streams[0] var r = streams[streams.length-1] r = r.readable ? r : null w = w.writable ? w : null var onclose = function() { streams[0].emit('error', new Error('stream was destroyed')) } this.on('close', onclose) this.on('prefinish', function() { if (!ended) self.cork() }) pump(streams, function(err) { self.removeListener('close', onclose) if (err) return self.destroy(err.message === 'premature close' ? null : err) ended = true // pump ends after the last stream is not writable *but* // pumpify still forwards the readable part so we need to catch errors // still, so reenable autoDestroy in this case if (self._autoDestroy === false) self._autoDestroy = true self.uncork() }) if (this.destroyed) return onclose() this.setWritable(w) this.setReadable(r) } return Pumpify } module.exports = define({autoDestroy:false, destroy:false}) module.exports.obj = define({autoDestroy: false, destroy:false, objectMode:true, highWaterMark:16}) module.exports.ctor = define
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