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Allow require() of runtime helpers in Node.js 13.2-13.6 (#12893)

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This commit is contained in:
Nicolò Ribaudo
2021-02-25 12:28:50 +01:00
committed by GitHub
parent 039eb2710d
commit bb558aaf28
7 changed files with 516 additions and 502 deletions
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11
packages/babel-plugin-transform-runtime/scripts/build-dist.js
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@@ -159,13 +159,16 @@ function writeHelpers(runtimeName, { corejs } = {}) {
// - Node.js >=13.7.0 and bundlers will succesfully load the first
// array entry:
// * Node.js will always load the CJS file
// * Bundlers when using require() will load the CJS file
// * Everything else will load the ESM file
// - Node.js <13.7.0 will fail resolving the first array entry, and will
// * Modern tools when using "import" will load the ESM file
// * Everything else (old tools, or requrie() in tools) will
// load the CJS file
// - Node.js 13.2-13.7 will ignore the "node" and "import" conditions,
// will fallback to "default" and load the CJS file
// - Node.js <13.2.0 will fail resolving the first array entry, and will
// fallback to the second entry (the CJS file)
// In Babel 8 we can simplify this.
helperSubExports[`./${helperPath}`] = [
{ node: cjs, require: cjs, default: esm },
{ node: cjs, import: esm, default: cjs },
cjs,
];
// For backward compatibility. We can remove this in Babel 8.