Refactor to move implementation to lib/

Author: wooorm

index.js

@@ -1,50 +1 @@
-/**
- * @typedef {import('unist').Node} Node
- * @typedef {import('unist').Parent} Parent
- *
- * @typedef {string} Type
- * @typedef {Record<string, unknown>} Props
- * @typedef {import('unist-util-is').TestFunctionAnything} TestFunctionAnything
- */
-
-import {convert} from 'unist-util-is'
-
-/** @type {Array<Node>} */
-let empty
-
-/**
- * Calculate the number of nodes in `node`.
- *
- * @param {Node} node
- *   Tree to traverse.
- * @param {null|undefined|Type|Props|TestFunctionAnything|Array<Type|Props|TestFunctionAnything>} [test]
- *   `unist-util-is`-compatible test (such as a node type).
- * @returns {number}
- *   Exclusive descendants of `node` that pass `test`.
- */
-export function size(node, test) {
-  const is = convert(test)
-
-  return fastSize(node)
-
-  /**
-   * @param {Node} node
-   */
-  function fastSize(node) {
-    /** @type {Array<Node>} */
-    // @ts-expect-error Looks like a parent.
-    const children = (node && node.children) || empty
-    let count = 0
-    let index = -1
-
-    if (children && children.length > 0) {
-      while (++index < children.length) {
-        // @ts-expect-error Looks like a parent.
-        if (is(children[index], index, node)) count++
-        count += fastSize(children[index])
-      }
-    }
-
-    return count
-  }
-}
+export {size} from './lib/index.js'

lib/index.js

@@ -0,0 +1,50 @@
+/**
+ * @typedef {import('unist').Node} Node
+ * @typedef {import('unist').Parent} Parent
+ *
+ * @typedef {string} Type
+ * @typedef {Record<string, unknown>} Props
+ * @typedef {import('unist-util-is').TestFunctionAnything} TestFunctionAnything
+ */
+
+import {convert} from 'unist-util-is'
+
+/** @type {Array<Node>} */
+let empty
+
+/**
+ * Calculate the number of nodes in `node`.
+ *
+ * @param {Node} node
+ *   Tree to traverse.
+ * @param {null|undefined|Type|Props|TestFunctionAnything|Array<Type|Props|TestFunctionAnything>} [test]
+ *   `unist-util-is`-compatible test (such as a node type).
+ * @returns {number}
+ *   Exclusive descendants of `node` that pass `test`.
+ */
+export function size(node, test) {
+  const is = convert(test)
+
+  return fastSize(node)
+
+  /**
+   * @param {Node} node
+   */
+  function fastSize(node) {
+    /** @type {Array<Node>} */
+    // @ts-expect-error Looks like a parent.
+    const children = (node && node.children) || empty
+    let count = 0
+    let index = -1
+
+    if (children && children.length > 0) {
+      while (++index < children.length) {
+        // @ts-expect-error Looks like a parent.
+        if (is(children[index], index, node)) count++
+        count += fastSize(children[index])
+      }
+    }
+
+    return count
+  }
+}

package.json

@@ -27,6 +27,7 @@
   "main": "index.js",
   "types": "index.d.ts",
   "files": [
+    "lib/",
     "index.d.ts",
     "index.js"
   ],