ce4c83ff
 wxy
初始提交
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/** @license MIT License (c) copyright 2010-2014 original author or authors */
/** @author Brian Cavalier */
/** @author John Hann */
(function(define) { 'use strict';
define(function(require) {
var error = require('./error');
var unhandledRejectionsMsg = '[promises] Unhandled rejections: ';
var allHandledMsg = '[promises] All previously unhandled rejections have now been handled';
function ConsoleReporter() {
this._previouslyReported = false;
}
ConsoleReporter.prototype = initDefaultLogging();
ConsoleReporter.prototype.log = function(traces) {
if(traces.length === 0) {
if(this._previouslyReported) {
this._previouslyReported = false;
this.msg(allHandledMsg);
}
return;
}
this._previouslyReported = true;
this.groupStart(unhandledRejectionsMsg + traces.length);
try {
this._log(traces);
} finally {
this.groupEnd();
}
};
ConsoleReporter.prototype._log = function(traces) {
for(var i=0; i<traces.length; ++i) {
this.warn(error.format(traces[i]));
}
};
function initDefaultLogging() {
/*jshint maxcomplexity:7*/
var log, warn, groupStart, groupEnd;
if(typeof console === 'undefined') {
log = warn = consoleNotAvailable;
} else {
// Alias console to prevent things like uglify's drop_console option from
// removing console.log/error. Unhandled rejections fall into the same
// category as uncaught exceptions, and build tools shouldn't silence them.
var localConsole = console;
if(typeof localConsole.error === 'function'
&& typeof localConsole.dir === 'function') {
warn = function(s) {
localConsole.error(s);
};
log = function(s) {
localConsole.log(s);
};
if(typeof localConsole.groupCollapsed === 'function') {
groupStart = function(s) {
localConsole.groupCollapsed(s);
};
groupEnd = function() {
localConsole.groupEnd();
};
}
} else {
// IE8 has console.log and JSON, so we can make a
// reasonably useful warn() from those.
// Credit to webpro (https://github.com/webpro) for this idea
if (typeof localConsole.log ==='function'
&& typeof JSON !== 'undefined') {
log = warn = function (x) {
if(typeof x !== 'string') {
try {
x = JSON.stringify(x);
} catch(e) {}
}
localConsole.log(x);
};
}
}
}
return {
msg: log,
warn: warn,
groupStart: groupStart || warn,
groupEnd: groupEnd || consoleNotAvailable
};
}
function consoleNotAvailable() {}
return ConsoleReporter;
});
}(typeof define === 'function' && define.amd ? define : function(factory) { module.exports = factory(require); }));
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