Refactor to move implementation to lib/

index.js

@@ -1,55 +1,11 @@
 /**
- * @typedef {import('unist').Parent} UnistParent
+ * @template {import('unist').Parent} Kind
+ * @typedef {import('./lib/index.js').Visitor<Kind>} Visitor
  */
 
 /**
- * @template {UnistParent} Parent
- * @callback Visitor
- *   Callback called for each `child` in `parent` later given to `visit`.
- * @param {Parent['children'][number]} node
- *   Child of `parent`.
- * @param {number} index
- *   Position of `child` in `parent`.
- * @param {Parent} parent
- *   Parent node.
- * @returns {void}
- *   Nothing.
+ * @template {import('unist').Parent} Kind
+ * @typedef {import('./lib/index.js').Visit<Kind>} Visit
  */
 
-/**
- * @template {UnistParent} Parent
- * @callback Visit
- *   Function to call the bound `visitor` for each child in `parent`.
- * @param {Parent} node
- *   Parent node.
- * @returns {void}
- *   Nothing.
- */
-
-/**
- * Wrap `visitor` to be called for each child in the nodes later given to
- * `visit`.
- *
- * @template {UnistParent} Parent
- * @param {Visitor<Parent>} visitor
- *   Callback called for each `child` in `parent` later given to `visit`.
- * @returns {Visit<Parent>}
- *   Function to call the bound `visitor` for each child in `parent`.
- */
-export function visitChildren(visitor) {
-  return visit
-
-  /** @type {Visit<Parent>} */
-  function visit(parent) {
-    const children = parent && parent.children
-    let index = -1
-
-    if (!children) {
-      throw new Error('Missing children in `parent` for `visit`')
-    }
-
-    while (++index in children) {
-      visitor(children[index], index, parent)
-    }
-  }
-}
+export {visitChildren} from './lib/index.js'

lib/index.js

@@ -0,0 +1,55 @@
+/**
+ * @typedef {import('unist').Parent} UnistParent
+ */
+
+/**
+ * @template {UnistParent} Parent
+ * @callback Visitor
+ *   Callback called for each `child` in `parent` later given to `visit`.
+ * @param {Parent['children'][number]} node
+ *   Child of `parent`.
+ * @param {number} index
+ *   Position of `child` in `parent`.
+ * @param {Parent} parent
+ *   Parent node.
+ * @returns {void}
+ *   Nothing.
+ */
+
+/**
+ * @template {UnistParent} Parent
+ * @callback Visit
+ *   Function to call the bound `visitor` for each child in `parent`.
+ * @param {Parent} node
+ *   Parent node.
+ * @returns {void}
+ *   Nothing.
+ */
+
+/**
+ * Wrap `visitor` to be called for each child in the nodes later given to
+ * `visit`.
+ *
+ * @template {UnistParent} Parent
+ * @param {Visitor<Parent>} visitor
+ *   Callback called for each `child` in `parent` later given to `visit`.
+ * @returns {Visit<Parent>}
+ *   Function to call the bound `visitor` for each child in `parent`.
+ */
+export function visitChildren(visitor) {
+  return visit
+
+  /** @type {Visit<Parent>} */
+  function visit(parent) {
+    const children = parent && parent.children
+    let index = -1
+
+    if (!children) {
+      throw new Error('Missing children in `parent` for `visit`')
+    }
+
+    while (++index in children) {
+      visitor(children[index], index, parent)
+    }
+  }
+}

package.json

@@ -26,6 +26,7 @@
   "main": "index.js",
   "types": "index.d.ts",
   "files": [
+    "lib/",
     "index.d.ts",
     "index.js"
   ],