nodeback.js (1560B)
1 "use strict"; 2 var util = require("./util"); 3 var maybeWrapAsError = util.maybeWrapAsError; 4 var errors = require("./errors"); 5 var OperationalError = errors.OperationalError; 6 var es5 = require("./es5"); 7 8 function isUntypedError(obj) { 9 return obj instanceof Error && 10 es5.getPrototypeOf(obj) === Error.prototype; 11 } 12 13 var rErrorKey = /^(?:name|message|stack|cause)$/; 14 function wrapAsOperationalError(obj) { 15 var ret; 16 if (isUntypedError(obj)) { 17 ret = new OperationalError(obj); 18 ret.name = obj.name; 19 ret.message = obj.message; 20 ret.stack = obj.stack; 21 var keys = es5.keys(obj); 22 for (var i = 0; i < keys.length; ++i) { 23 var key = keys[i]; 24 if (!rErrorKey.test(key)) { 25 ret[key] = obj[key]; 26 } 27 } 28 return ret; 29 } 30 util.markAsOriginatingFromRejection(obj); 31 return obj; 32 } 33 34 function nodebackForPromise(promise, multiArgs) { 35 return function(err, value) { 36 if (promise === null) return; 37 if (err) { 38 var wrapped = wrapAsOperationalError(maybeWrapAsError(err)); 39 promise._attachExtraTrace(wrapped); 40 promise._reject(wrapped); 41 } else if (!multiArgs) { 42 promise._fulfill(value); 43 } else { 44 var $_len = arguments.length;var args = new Array(Math.max($_len - 1, 0)); for(var $_i = 1; $_i < $_len; ++$_i) {args[$_i - 1] = arguments[$_i];}; 45 promise._fulfill(args); 46 } 47 promise = null; 48 }; 49 } 50 51 module.exports = nodebackForPromise;