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75 lines
2.2 KiB
75 lines
2.2 KiB
3 years ago
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = _default;
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var _utils = require("./utils");
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const BABEL_POLYFILL_DEPRECATION = `
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\`@babel/polyfill\` is deprecated. Please, use required parts of \`core-js\`
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and \`regenerator-runtime/runtime\` separately`;
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const NO_DIRECT_POLYFILL_IMPORT = `
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When setting \`useBuiltIns: 'usage'\`, polyfills are automatically imported when needed.
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Please remove the direct import of \`SPECIFIER\` or use \`useBuiltIns: 'entry'\` instead.`;
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function _default({
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template
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}, {
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regenerator,
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deprecated,
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usage
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}) {
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return {
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name: "preset-env/replace-babel-polyfill",
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visitor: {
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ImportDeclaration(path) {
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const src = (0, _utils.getImportSource)(path);
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if (usage && (0, _utils.isPolyfillSource)(src)) {
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console.warn(NO_DIRECT_POLYFILL_IMPORT.replace("SPECIFIER", src));
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if (!deprecated) path.remove();
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} else if (src === "@babel/polyfill") {
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if (deprecated) {
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console.warn(BABEL_POLYFILL_DEPRECATION);
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} else if (regenerator) {
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path.replaceWithMultiple(template.ast`
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import "core-js";
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import "regenerator-runtime/runtime.js";
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`);
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} else {
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path.replaceWith(template.ast`
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import "core-js";
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`);
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}
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}
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},
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Program(path) {
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path.get("body").forEach(bodyPath => {
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const src = (0, _utils.getRequireSource)(bodyPath);
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if (usage && (0, _utils.isPolyfillSource)(src)) {
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console.warn(NO_DIRECT_POLYFILL_IMPORT.replace("SPECIFIER", src));
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if (!deprecated) bodyPath.remove();
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} else if (src === "@babel/polyfill") {
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if (deprecated) {
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console.warn(BABEL_POLYFILL_DEPRECATION);
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} else if (regenerator) {
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bodyPath.replaceWithMultiple(template.ast`
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require("core-js");
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require("regenerator-runtime/runtime.js");
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`);
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} else {
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bodyPath.replaceWith(template.ast`
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require("core-js");
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`);
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}
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}
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});
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}
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}
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};
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}
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