3e1b1dd4a9
The copyright and license notice is already in the LICENSE file. There is no justifiable reason to also require that it be included in every file, since the individual files are not individually distributed except as part of the entire package.
93 lines
2.2 KiB
JavaScript
93 lines
2.2 KiB
JavaScript
'use strict';
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var util = require('util');
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function Console(stdout, stderr) {
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if (!(this instanceof Console)) {
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return new Console(stdout, stderr);
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}
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if (!stdout || !util.isFunction(stdout.write)) {
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throw new TypeError('Console expects a writable stream instance');
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}
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if (!stderr) {
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stderr = stdout;
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}
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var prop = {
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writable: true,
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enumerable: false,
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configurable: true
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};
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prop.value = stdout;
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Object.defineProperty(this, '_stdout', prop);
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prop.value = stderr;
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Object.defineProperty(this, '_stderr', prop);
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prop.value = {};
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Object.defineProperty(this, '_times', prop);
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// bind the prototype functions to this Console instance
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var keys = Object.keys(Console.prototype);
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for (var v = 0; v < keys.length; v++) {
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var k = keys[v];
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this[k] = this[k].bind(this);
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}
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}
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Console.prototype.log = function() {
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this._stdout.write(util.format.apply(this, arguments) + '\n');
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};
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Console.prototype.info = Console.prototype.log;
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Console.prototype.warn = function() {
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this._stderr.write(util.format.apply(this, arguments) + '\n');
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};
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Console.prototype.error = Console.prototype.warn;
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Console.prototype.dir = function(object, options) {
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this._stdout.write(util.inspect(object, util._extend({
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customInspect: false
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}, options)) + '\n');
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};
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Console.prototype.time = function(label) {
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this._times[label] = Date.now();
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};
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Console.prototype.timeEnd = function(label) {
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var time = this._times[label];
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if (!time) {
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throw new Error('No such label: ' + label);
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}
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var duration = Date.now() - time;
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this.log('%s: %dms', label, duration);
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};
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Console.prototype.trace = function trace() {
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// TODO probably can to do this better with V8's debug object once that is
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// exposed.
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var err = new Error;
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err.name = 'Trace';
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err.message = util.format.apply(this, arguments);
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Error.captureStackTrace(err, trace);
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this.error(err.stack);
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};
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Console.prototype.assert = function(expression) {
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if (!expression) {
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var arr = Array.prototype.slice.call(arguments, 1);
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require('assert').ok(false, util.format.apply(this, arr));
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}
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};
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module.exports = new Console(process.stdout, process.stderr);
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module.exports.Console = Console;
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