76 lines
2.2 KiB
TypeScript
76 lines
2.2 KiB
TypeScript
/* eslint-disable @babel/development/plugin-name */
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import { declare } from "@babel/helper-plugin-utils";
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import syntaxDecorators from "@babel/plugin-syntax-decorators";
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import {
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createClassFeaturePlugin,
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FEATURES,
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} from "@babel/helper-create-class-features-plugin";
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import legacyVisitor from "./transformer-legacy";
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import transformer2021_12 from "./transformer-2021-12";
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export default declare((api, options) => {
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api.assertVersion(7);
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const { legacy = false } = options;
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if (typeof legacy !== "boolean") {
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throw new Error("'legacy' must be a boolean.");
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}
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const { decoratorsBeforeExport, version } = options;
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if (decoratorsBeforeExport === undefined) {
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if (!legacy) {
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throw new Error(
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"The decorators plugin requires a 'decoratorsBeforeExport' option," +
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" whose value must be a boolean. If you want to use the legacy" +
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" decorators semantics, you can set the 'legacy: true' option.",
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);
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}
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} else {
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if (legacy) {
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throw new Error(
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"'decoratorsBeforeExport' can't be used with legacy decorators.",
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);
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}
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if (typeof decoratorsBeforeExport !== "boolean") {
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throw new Error("'decoratorsBeforeExport' must be a boolean.");
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}
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}
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if (version === "legacy" || legacy) {
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if (version !== undefined && legacy) {
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throw new Error(
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'You can either specify `legacy: true` or `version: "legacy"` with decorators, not both.',
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);
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}
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return {
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name: "proposal-decorators",
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inherits: syntaxDecorators,
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manipulateOptions({ generatorOpts }) {
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generatorOpts.decoratorsBeforeExport = decoratorsBeforeExport;
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},
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visitor: legacyVisitor,
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};
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}
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if (version === "2021-12") {
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return transformer2021_12(api, options);
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} else if (!(version === "2018-09" || version === undefined)) {
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throw new Error("Unsupported decorators version: " + version);
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}
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return createClassFeaturePlugin({
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name: "proposal-decorators",
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api,
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feature: FEATURES.decorators,
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// loose: options.loose, Not supported
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manipulateOptions({ generatorOpts, parserOpts }) {
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parserOpts.plugins.push(["decorators", { decoratorsBeforeExport }]);
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generatorOpts.decoratorsBeforeExport = decoratorsBeforeExport;
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},
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});
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});
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