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codeql-action/node_modules/asynckit/lib/readable_asynckit.js
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var streamify = require('./streamify.js') | |
, defer = require('./defer.js') | |
; | |
// API | |
module.exports = ReadableAsyncKit; | |
/** | |
* Base constructor for all streams | |
* used to hold properties/methods | |
*/ | |
function ReadableAsyncKit() | |
{ | |
ReadableAsyncKit.super_.apply(this, arguments); | |
// list of active jobs | |
this.jobs = {}; | |
// add stream methods | |
this.destroy = destroy; | |
this._start = _start; | |
this._read = _read; | |
} | |
/** | |
* Destroys readable stream, | |
* by aborting outstanding jobs | |
* | |
* @returns {void} | |
*/ | |
function destroy() | |
{ | |
if (this.destroyed) | |
{ | |
return; | |
} | |
this.destroyed = true; | |
if (typeof this.terminator == 'function') | |
{ | |
this.terminator(); | |
} | |
} | |
/** | |
* Starts provided jobs in async manner | |
* | |
* @private | |
*/ | |
function _start() | |
{ | |
// first argument – runner function | |
var runner = arguments[0] | |
// take away first argument | |
, args = Array.prototype.slice.call(arguments, 1) | |
// second argument - input data | |
, input = args[0] | |
// last argument - result callback | |
, endCb = streamify.callback.call(this, args[args.length - 1]) | |
; | |
args[args.length - 1] = endCb; | |
// third argument - iterator | |
args[1] = streamify.iterator.call(this, args[1]); | |
// allow time for proper setup | |
defer(function() | |
{ | |
if (!this.destroyed) | |
{ | |
this.terminator = runner.apply(null, args); | |
} | |
else | |
{ | |
endCb(null, Array.isArray(input) ? [] : {}); | |
} | |
}.bind(this)); | |
} | |
/** | |
* Implement _read to comply with Readable streams | |
* Doesn't really make sense for flowing object mode | |
* | |
* @private | |
*/ | |
function _read() | |
{ | |
} |