| 1 | ;
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| 2 | const {
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| 3 | getImportSource,
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| 4 | getRequireSource,
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| 5 | isPolyfillSource
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| 6 | } = require("./utils.cjs");
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| 7 | const BABEL_POLYFILL_DEPRECATION = `
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| 8 | \`@babel/polyfill\` is deprecated. Please, use required parts of \`core-js\`
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| 9 | and \`regenerator-runtime/runtime\` separately`;
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| 10 | const NO_DIRECT_POLYFILL_IMPORT = `
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| 11 | When setting \`useBuiltIns: 'usage'\`, polyfills are automatically imported when needed.
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| 12 | Please remove the direct import of \`SPECIFIER\` or use \`useBuiltIns: 'entry'\` instead.`;
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| 13 | module.exports = function ({
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| 14 | template
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| 15 | }, {
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| 16 | regenerator,
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| 17 | deprecated,
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| 18 | usage
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| 19 | }) {
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| 20 | return {
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| 21 | name: "preset-env/replace-babel-polyfill",
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| 22 | visitor: {
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| 23 | ImportDeclaration(path) {
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| 24 | const src = getImportSource(path);
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| 25 | if (usage && isPolyfillSource(src)) {
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| 26 | console.warn(NO_DIRECT_POLYFILL_IMPORT.replace("SPECIFIER", src));
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| 27 | if (!deprecated) path.remove();
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| 28 | } else if (src === "@babel/polyfill") {
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| 29 | if (deprecated) {
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| 30 | console.warn(BABEL_POLYFILL_DEPRECATION);
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| 31 | } else if (regenerator) {
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| 32 | path.replaceWithMultiple(template.ast`
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| 33 | import "core-js";
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| 34 | import "regenerator-runtime/runtime.js";
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| 35 | `);
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| 36 | } else {
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| 37 | path.replaceWith(template.ast`
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| 38 | import "core-js";
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| 39 | `);
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| 40 | }
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| 41 | }
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| 42 | },
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| 43 | Program(path) {
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| 44 | path.get("body").forEach(bodyPath => {
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| 45 | const src = getRequireSource(bodyPath);
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| 46 | if (usage && isPolyfillSource(src)) {
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| 47 | console.warn(NO_DIRECT_POLYFILL_IMPORT.replace("SPECIFIER", src));
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| 48 | if (!deprecated) bodyPath.remove();
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| 49 | } else if (src === "@babel/polyfill") {
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| 50 | if (deprecated) {
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| 51 | console.warn(BABEL_POLYFILL_DEPRECATION);
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| 52 | } else if (regenerator) {
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| 53 | bodyPath.replaceWithMultiple(template.ast`
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| 54 | require("core-js");
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| 55 | require("regenerator-runtime/runtime.js");
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| 56 | `);
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| 57 | } else {
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| 58 | bodyPath.replaceWith(template.ast`
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| 59 | require("core-js");
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| 60 | `);
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| 61 | }
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| 62 | }
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| 63 | });
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| 64 | }
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| 65 | }
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| 66 | };
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| 67 | };
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| 68 |
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| 69 | //# sourceMappingURL=babel-polyfill.cjs.map
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