51 lines
1.2 KiB
JavaScript
51 lines
1.2 KiB
JavaScript
import isBabelPluginFactory from "../utils/is-babel-plugin-factory";
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function getReturnValue(node) {
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const { body } = node;
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if (body.type === "BlockStatement") {
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const returnNode = body.body.find(n => n.type === "ReturnStatement");
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return returnNode && returnNode.argument;
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}
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// Arrow functions with implicit return
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return body;
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}
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export default {
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meta: {
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schema: [],
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},
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create(context /*: Context */) {
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let pluginFound = false;
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return {
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FunctionDeclaration: functionVisitor,
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FunctionExpression: functionVisitor,
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ArrowFunctionExpression: functionVisitor,
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"Program:exit"(node) {
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if (!pluginFound) {
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context.report(node, "This file does not export a Babel plugin.");
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}
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},
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};
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function functionVisitor(node) {
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if (!isBabelPluginFactory(node, context.getScope())) return;
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const returnValue = getReturnValue(node);
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if (!returnValue || returnValue.type !== "ObjectExpression") return;
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pluginFound = true;
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if (!returnValue.properties.some(p => p.key.name === "name")) {
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context.report(
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returnValue,
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"This Babel plugin doesn't have a 'name' property.",
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);
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}
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}
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},
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};
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