e229ebbb8a
* Optimize async to generator We can reuse the step function, avoiding a closure on every invocation. * Rename step
24 lines
1.0 KiB
JavaScript
24 lines
1.0 KiB
JavaScript
"use strict";
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function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }
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function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }
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function mandatory(paramName) {
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throw new Error(`Missing parameter: ${paramName}`);
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}
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function foo(_x) {
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return _foo.apply(this, arguments);
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}
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function _foo() {
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_foo = _asyncToGenerator(function* (_ref) {
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let a = _ref.a,
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_ref$b = _ref.b,
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b = _ref$b === void 0 ? mandatory("b") : _ref$b;
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return Promise.resolve(b);
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});
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return _foo.apply(this, arguments);
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}
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