🎉 initiate project *astro_rewrite*

node_modules/@mdx-js/mdx/lib/plugin/recma-jsx-build.js

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+/**
+ * @typedef {import('estree-jsx').Program} Program
+ * @typedef {import('estree-util-build-jsx').BuildJsxOptions} BuildJsxOptions
+ */
+
+/**
+ * @typedef ExtraOptions
+ *   Configuration for internal plugin `recma-jsx-build`.
+ * @property {'function-body' | 'program' | null | undefined} [outputFormat='program']
+ *   Whether to keep the import of the automatic runtime or get it from
+ *   `arguments[0]` instead.
+ *
+ * @typedef {BuildJsxOptions & ExtraOptions} RecmaJsxBuildOptions
+ */
+
+import {buildJsx} from 'estree-util-build-jsx'
+import {specifiersToDeclarations} from '../util/estree-util-specifiers-to-declarations.js'
+import {toIdOrMemberExpression} from '../util/estree-util-to-id-or-member-expression.js'
+
+/**
+ * A plugin to build JSX into function calls.
+ * `estree-util-build-jsx` does all the work for us!
+ *
+ * @type {import('unified').Plugin<[RecmaJsxBuildOptions | null | undefined] | [], Program>}
+ */
+export function recmaJsxBuild(options) {
+  // Always given inside `@mdx-js/mdx`
+  /* c8 ignore next */
+  const {development, outputFormat} = options || {}
+
+  return (tree, file) => {
+    buildJsx(tree, {development, filePath: file.history[0]})
+
+    // When compiling to a function body, replace the import that was just
+    // generated, and get `jsx`, `jsxs`, and `Fragment` from `arguments[0]`
+    // instead.
+    if (
+      outputFormat === 'function-body' &&
+      tree.body[0] &&
+      tree.body[0].type === 'ImportDeclaration' &&
+      typeof tree.body[0].source.value === 'string' &&
+      /\/jsx-(dev-)?runtime$/.test(tree.body[0].source.value)
+    ) {
+      tree.body[0] = {
+        type: 'VariableDeclaration',
+        kind: 'const',
+        declarations: specifiersToDeclarations(
+          tree.body[0].specifiers,
+          toIdOrMemberExpression(['arguments', 0])
+        )
+      }
+    }
+  }
+}