2884bac44b
While it isn't technically needed because regenerator already handles
async functions, it doesn't play well with the Promise detection logic
used by @babel/preset-env's useBuiltIns and @babel/transform-runtime.
The plugin exclusion logic isn't removed, because
1) it will be useful when merging @babel/preset-modules
into @babel/preset-env
2) if/when regenerator will support injecting a custom promise,
we can enable this optimization again
27 lines
1.2 KiB
JavaScript
27 lines
1.2 KiB
JavaScript
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 test(fn) {
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return (
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/*#__PURE__*/
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_asyncToGenerator(
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/*#__PURE__*/
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regeneratorRuntime.mark(function _callee() {
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var _args = arguments;
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return regeneratorRuntime.wrap(function _callee$(_context) {
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while (1) {
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switch (_context.prev = _context.next) {
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case 0:
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return _context.abrupt("return", fn.apply(void 0, _args));
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case 1:
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case "end":
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return _context.stop();
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}
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}
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}, _callee);
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}))
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);
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}
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