simple-squiggle

A restricted subset of Squiggle
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asyncToGenerator.js (787B)

      1 function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) {
      2   try {
      3     var info = gen[key](arg);
      4     var value = info.value;
      5   } catch (error) {
      6     reject(error);
      7     return;
      8   }
      9 
     10   if (info.done) {
     11     resolve(value);
     12   } else {
     13     Promise.resolve(value).then(_next, _throw);
     14   }
     15 }
     16 
     17 export default function _asyncToGenerator(fn) {
     18   return function () {
     19     var self = this,
     20         args = arguments;
     21     return new Promise(function (resolve, reject) {
     22       var gen = fn.apply(self, args);
     23 
     24       function _next(value) {
     25         asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value);
     26       }
     27 
     28       function _throw(err) {
     29         asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err);
     30       }
     31 
     32       _next(undefined);
     33     });
     34   };
     35 }