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// LazyTransform is a special type of Transform stream that is lazily loaded.
// This is used for performance with bi-API-ship: when two APIs are available
// for the stream, one conventional and one non-conventional.
'use strict';
const stream = require('stream');
const util = require('util');
module.exports = LazyTransform;
function LazyTransform(options) {
this._options = options;
}
util.inherits(LazyTransform, stream.Transform);
[
'_readableState',
'_writableState',
'_transformState'
].forEach(function(prop, i, props) {
Object.defineProperty(LazyTransform.prototype, prop, {
get: function() {
stream.Transform.call(this, this._options);
this._writableState.decodeStrings = false;
this._writableState.defaultEncoding = 'binary';
return this[prop];
},
set: function(val) {
Object.defineProperty(this, prop, {
value: val,
enumerable: true,
configurable: true,
writable: true
});
},
configurable: true,
enumerable: true
});
});