mirror of https://github.com/webpack/webpack.git
39 lines
959 B
JavaScript
39 lines
959 B
JavaScript
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const babel = require("@babel/core");
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/** @typedef {import("@babel/core").BabelFileResult} BabelFileResult */
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/** @typedef {import("@babel/core").TransformOptions} TransformOptions */
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/** @type {import("../../../../").LoaderDefinition} */
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module.exports = function(source, inputSourceMap) {
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const callback = this.async();
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babel.transform(source, {
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filename: this.resourcePath,
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sourceFileName: this.resourcePath,
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inputSourceMap: /** @type {NonNullable<TransformOptions["inputSourceMap"]>} */
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(inputSourceMap),
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sourceMaps: this.sourceMap,
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plugins: [function() {
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return {
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visitor: {
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/**
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* @param {EXPECTED_ANY} path path
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*/
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NumericLiteral(path) {
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path.node.value = 43;
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},
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},
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};
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}]
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}, (err, result) => {
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if (err) {
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callback(err);
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return;
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}
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const { code, map } = /** @type {BabelFileResult} */ (result);
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callback(null, /** @type {string} */ (code), JSON.stringify(map));
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});
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};
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