Created
June 14, 2014 14:01
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wrapping promise using AOP
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| (function() | |
| { | |
| var wrappedPromiseConstructor = Promise; | |
| Promise = function(...args) | |
| { | |
| // Do whatever you want here | |
| console.log("trapped"); | |
| var func = args[0]; | |
| args[0] = function(resolve, reject) | |
| { | |
| setTimeout(function() | |
| { | |
| reject("timeout"); | |
| }, 1000); | |
| func(resolve, reject); | |
| }; | |
| var promise = new wrappedPromiseConstructor(...args); | |
| promise.catch(function(ex) | |
| { | |
| console.error("oups, exception : ", ex); | |
| throw ex; | |
| }); | |
| return promise; | |
| } | |
| })(); | |
| // Just a few tests | |
| new Promise(function() | |
| { | |
| new undefined(); | |
| }); | |
| new Promise(function(resolve, reject) | |
| { | |
| setTimeout(() => resolve(1), 500); | |
| }).then((v) => console.log("test 2, value: ", v), | |
| (e) => console.error("test 2, error: ", e)); | |
| new Promise(function(resolve, reject) | |
| { | |
| setTimeout(() => resolve(1), 1500); | |
| }).then((v) => console.log("test 3, value: ", v), | |
| (e) => console.error("test 3, error: ", e)); |
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