Created
April 3, 2012 08:20
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Idea para contextualizar las llamadas a console.log
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var AClass = new Class({ | |
Implements: [ExtendedLogger], | |
initialize: function() { | |
this.initLogger('AClass', { | |
skip: ['silentMethod'], | |
debug: true | |
}); | |
this.silentMethod(); | |
this.otherMethod(); | |
}, | |
silentMethod: function() { | |
this.log("Esto no sale en el log"); | |
}, | |
otherMethod: function() { | |
this.log("Esto sí sale en el log"); | |
} | |
}); |
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var ExtendedLogger = | |
(function(){ | |
var stacks = []; | |
new Class({ | |
stack: [], | |
initLogger: function(name, options) { | |
stacks.push(this.stack); | |
if (options == null) { | |
options = {}; | |
} | |
var skip = options['skip'] || []; | |
skip.combine(['log', '_log', 'initLogger', 'addEvent', 'removeEvent', 'fireEvent']); | |
var debug = options['debug']; | |
var self = this; | |
var properties = Object.keys(self.$constructor.prototype); | |
properties.each(function(property) { | |
var oldDefinition = self[property]; | |
if (skip.contains(property)) { | |
return; | |
} | |
if (oldDefinition instanceof Function) { | |
var newDefinition = function() { | |
if (debug) { | |
self._log(name + "." + property + ":", '+', 1, arguments); | |
} | |
self.stack.push(property); | |
var start = new Date().getTime(); | |
var result = oldDefinition.apply(self, arguments); | |
var end = new Date().getTime(); | |
var time = end - start; | |
if (debug) { | |
self._log(name + "." + property + ": " + time + "ms", '-'); | |
} | |
self.stack.pop(property); | |
return result; | |
}; | |
self[property] = newDefinition; | |
} | |
}); | |
this.log = function(omsg) { | |
this._log(" " + omsg + " [" + name + "." + (self.stack.getLast() || 'anonymous') + "]"); | |
}; | |
this._log = function(msg, separator, offset, arg) { | |
if (separator == null) { | |
separator = ' '; | |
} | |
if (offset == null) { | |
offset = 0; | |
} | |
if (arg == null) { | |
arg = ''; | |
} | |
if (debug) { | |
var indentLevel = stacks.reduce((function(a, b) { | |
return a + b.length; | |
}), 0); | |
var indent = ' '.repeat(indentLevel + offset - 1); | |
if (separator === ' ') { | |
indent += separator; | |
} else { | |
indent += ' ' + separator; | |
} | |
console.log("" + indent + " " + msg, arg); | |
} else { | |
console.log(msg); | |
} | |
}; | |
} | |
}); | |
})(); |
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