452f8f150c
* Always use the native (or polyfilled) Promise in transform-async-to-generator Fixes #5531 * Simplify scope handling to only un-shadow the Program's Promise Only the helper needs to see the native Promise.
26 lines
787 B
JavaScript
26 lines
787 B
JavaScript
import remapAsyncToGenerator from "babel-helper-remap-async-to-generator";
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import syntaxAsyncFunctions from "babel-plugin-syntax-async-functions";
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export default function () {
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return {
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inherits: syntaxAsyncFunctions,
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visitor: {
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Function(path, state) {
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if (!path.node.async || path.node.generator) return;
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// Ensure any Promise bindings at the Program level are renamed
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// so the asyncToGenerator helper only sees the native Promise
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const programScope = path.scope.getProgramParent();
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if (programScope.hasBinding("Promise", true)) {
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programScope.rename("Promise");
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}
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remapAsyncToGenerator(path, state.file, {
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wrapAsync: state.addHelper("asyncToGenerator"),
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});
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},
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},
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};
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}
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