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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 | 7x 3x 1x 2x 2x 2x 2x 2x 2x 2x | /**
* profiler.js: TODO: add file header description.
*
* (C) 2010 Charlie Robbins
* MIT LICENCE
*/
'use strict';
/**
* TODO: add class description.
* @type {Profiler}
* @private
*/
module.exports = class Profiler {
/**
* Constructor function for the Profiler instance used by
* `Logger.prototype.startTimer`. When done is called the timer will finish
* and log the duration.
* @param {!Logger} logger - TODO: add param description.
* @private
*/
constructor(logger) {
if (!logger) {
throw new Error('Logger is required for profiling.');
}
this.logger = logger;
this.start = Date.now();
}
/**
* Ends the current timer (i.e. Profiler) instance and logs the `msg` along
* with the duration since creation.
* @returns {mixed} - TODO: add return description.
* @private
*/
done(...args) {
Iif (typeof args[args.length - 1] === 'function') {
// eslint-disable-next-line no-console
console.warn('Callback function no longer supported as of winston@3.0.0');
args.pop();
}
const info = typeof args[args.length - 1] === 'object' ? args.pop() : {};
info.level = info.level || 'info';
info.durationMs = (Date.now()) - this.start;
return this.logger.write(info);
}
};
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