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25 lines
607 B
25 lines
607 B
9 years ago
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module.exports = ensnare
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// creates a proxy object that calls cb everytime the obj's properties/fns are accessed
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function ensnare(obj, cb){
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var proxy = {}
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Object.keys(obj).forEach(function(key){
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var val = obj[key]
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switch (typeof val) {
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case 'function':
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proxy[key] = function(){
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cb()
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val.apply(obj, arguments)
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}
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return
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default:
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Object.defineProperty(proxy, key, {
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get: function(){ cb(); return obj[key] },
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set: function(val){ cb(); return obj[key] = val },
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})
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return
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}
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})
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return proxy
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}
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