39 lines
1.5 KiB
JavaScript
39 lines
1.5 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.transformer = void 0;
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const core_1 = require("@babel/core");
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const transformer = async ({ content, filename, options, map = undefined, }) => {
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const babelOptions = {
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...options,
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inputSourceMap: typeof map === 'string' ? JSON.parse(map) : map !== null && map !== void 0 ? map : undefined,
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sourceType: 'module',
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// istanbul ignore next
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sourceMaps: !!(options === null || options === void 0 ? void 0 : options.sourceMaps),
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filename,
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minified: false,
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ast: false,
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code: true,
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caller: {
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name: 'svelte-preprocess',
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supportsStaticESM: true,
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supportsDynamicImport: true,
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// this isn't supported by Svelte but let it error with a good error on this syntax untouched
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supportsTopLevelAwait: true,
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// todo: this can be enabled once all "peer deps" understand this
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// this syntax is supported since rollup@1.26.0 and webpack@5.0.0-beta.21
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// supportsExportNamespaceFrom: true,
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...options === null || options === void 0 ? void 0 : options.caller,
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},
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};
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const result = await (0, core_1.transformAsync)(content, babelOptions);
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if (result == null) {
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return { code: content };
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}
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const { code, map: sourcemap } = result;
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return {
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code: code,
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map: sourcemap !== null && sourcemap !== void 0 ? sourcemap : undefined,
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};
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};
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exports.transformer = transformer;
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