41 lines
1.1 KiB
JavaScript
41 lines
1.1 KiB
JavaScript
import syntaxExportExtensions from "@babel/plugin-syntax-export-extensions";
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export default function({ types: t }) {
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return {
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inherits: syntaxExportExtensions,
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visitor: {
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ExportNamedDeclaration(path) {
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const { node, scope } = path;
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const { specifiers } = node;
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const index = t.isExportDefaultSpecifier(specifiers[0]) ? 1 : 0;
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if (!t.isExportNamespaceSpecifier(specifiers[index])) return;
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const nodes = [];
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if (index === 1) {
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nodes.push(
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t.exportNamedDeclaration(null, [specifiers.shift()], node.source),
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);
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}
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const specifier = specifiers.shift();
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const { exported } = specifier;
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const uid = scope.generateUidIdentifier(exported.name);
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nodes.push(
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t.importDeclaration([t.importNamespaceSpecifier(uid)], node.source),
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t.exportNamedDeclaration(null, [t.exportSpecifier(uid, exported)]),
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);
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if (node.specifiers.length >= 1) {
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nodes.push(node);
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}
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path.replaceWithMultiple(nodes);
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},
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},
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};
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}
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