Refactor to use @imports

.gitignore

@@ -4,3 +4,4 @@ node_modules/
 *.log
 .DS_Store
 yarn.lock
+!/index.d.ts

index.d.ts

@@ -0,0 +1,8 @@
+import type {Options as MdxExpressionOptions} from 'micromark-extension-mdx-expression'
+
+export {mdxjs} from './lib/index.js'
+
+/**
+ * Configuration for `mdxjs` of `micromark-extension-mdxjs`.
+ */
+export interface Options extends MdxExpressionOptions {}

index.js

@@ -1,39 +1,2 @@
-/**
- * @typedef {import('micromark-extension-mdx-expression').Options} Options
- * @typedef {import('micromark-util-types').Extension} Extension
- */
-
-import {Parser} from 'acorn'
-import acornJsx from 'acorn-jsx'
-import {mdxExpression} from 'micromark-extension-mdx-expression'
-import {mdxJsx} from 'micromark-extension-mdx-jsx'
-import {mdxMd} from 'micromark-extension-mdx-md'
-import {mdxjsEsm} from 'micromark-extension-mdxjs-esm'
-import {combineExtensions} from 'micromark-util-combine-extensions'
-
-/**
- * Create an extension for `micromark` to enable MDX syntax.
- *
- * @param {Options | null | undefined} [options]
- *   Configuration (optional).
- * @returns {Extension}
- *   Extension for `micromark` that can be passed in `extensions` to enable MDX
- *   syntax.
- */
-export function mdxjs(options) {
-  const settings = Object.assign(
-    {
-      acorn: Parser.extend(acornJsx()),
-      acornOptions: {ecmaVersion: 2024, sourceType: 'module'},
-      addResult: true
-    },
-    options
-  )
-
-  return combineExtensions([
-    mdxjsEsm(settings),
-    mdxExpression(settings),
-    mdxJsx(settings),
-    mdxMd()
-  ])
-}
+// Note: types exposed from `index.d.ts`.
+export {mdxjs} from './lib/index.js'

lib/index.js

@@ -0,0 +1,39 @@
+/**
+ * @import {Options} from 'micromark-extension-mdxjs'
+ * @import {Extension} from 'micromark-util-types'
+ */
+
+import {Parser} from 'acorn'
+import acornJsx from 'acorn-jsx'
+import {mdxExpression} from 'micromark-extension-mdx-expression'
+import {mdxJsx} from 'micromark-extension-mdx-jsx'
+import {mdxMd} from 'micromark-extension-mdx-md'
+import {mdxjsEsm} from 'micromark-extension-mdxjs-esm'
+import {combineExtensions} from 'micromark-util-combine-extensions'
+
+/**
+ * Create an extension for `micromark` to enable MDX syntax.
+ *
+ * @param {Options | null | undefined} [options]
+ *   Configuration (optional).
+ * @returns {Extension}
+ *   Extension for `micromark` that can be passed in `extensions` to enable MDX
+ *   syntax.
+ */
+export function mdxjs(options) {
+  const settings = Object.assign(
+    {
+      acorn: Parser.extend(acornJsx()),
+      acornOptions: {ecmaVersion: 2024, sourceType: 'module'},
+      addResult: true
+    },
+    options
+  )
+
+  return combineExtensions([
+    mdxjsEsm(settings),
+    mdxExpression(settings),
+    mdxJsx(settings),
+    mdxMd()
+  ])
+}

package.json

@@ -28,6 +28,7 @@
   "type": "module",
   "exports": "./index.js",
   "files": [
+    "lib/",
     "index.d.ts",
     "index.js"
   ],
@@ -82,6 +83,31 @@
     "strict": true
   },
   "xo": {
+    "overrides": [
+      {
+        "files": [
+          "**/*.d.ts"
+        ],
+        "rules": {
+          "@typescript-eslint/array-type": [
+            "error",
+            {
+              "default": "generic"
+            }
+          ],
+          "@typescript-eslint/ban-types": [
+            "error",
+            {
+              "extendDefaults": true
+            }
+          ],
+          "@typescript-eslint/consistent-type-definitions": [
+            "error",
+            "interface"
+          ]
+        }
+      }
+    ],
     "prettier": true
   }
 }

tsconfig.json

@@ -11,5 +11,5 @@
     "target": "es2022"
   },
   "exclude": ["coverage/", "node_modules/"],
-  "include": ["**/*.js"]
+  "include": ["**/*.js", "index.d.ts"]
 }