Refactor to move implementation to lib/

index.js

@@ -1,75 +1 @@
-/**
- * @typedef {import('vfile').VFile} VFile
- * @typedef {import('vfile-message').VFileMessage} VFileMessage
- */
-
-/** @type {Record<string, number>} */
-const severities = {true: 2, false: 1, null: 0, undefined: 0}
-
-/**
- * Sort messages in the given vfile.
- *
- * @template {VFile} File
- *   File type.
- * @param {File} file
- *   File to sort.
- * @returns {File}
- *   Sorted file.
- */
-// To do: next major: don’t return `file`.
-export function sort(file) {
-  file.messages.sort(comparator)
-  return file
-}
-
-/**
- * Compare a message.
- *
- * @param {VFileMessage} a
- *   Left message.
- * @param {VFileMessage} b
- *   Right message.
- * @returns {number}
- *   Order.
- */
-function comparator(a, b) {
-  return (
-    check(a, b, 'line') ||
-    check(a, b, 'column') ||
-    severities[String(b.fatal)] - severities[String(a.fatal)] ||
-    compare(a, b, 'source') ||
-    compare(a, b, 'ruleId') ||
-    compare(a, b, 'reason') ||
-    0
-  )
-}
-
-/**
- * Compare a numeric field.
- *
- * @param {VFileMessage} a
- *   Left message.
- * @param {VFileMessage} b
- *   Right message.
- * @param {'column' | 'line'} field
- *   Numeric field.
- * @returns {number}
- *   Order.
- */
-function check(a, b, field) {
-  return (a[field] || 0) - (b[field] || 0)
-}
-
-/**
- * @param {VFileMessage} a
- *   Left message.
- * @param {VFileMessage} b
- *   Right message.
- * @param {'reason' | 'ruleId' | 'source'} field
- *   String field.
- * @returns {number}
- *   Order.
- */
-function compare(a, b, field) {
-  return String(a[field] || '').localeCompare(b[field] || '')
-}
+export {sort} from './lib/index.js'

lib/index.js

@@ -0,0 +1,75 @@
+/**
+ * @typedef {import('vfile').VFile} VFile
+ * @typedef {import('vfile-message').VFileMessage} VFileMessage
+ */
+
+/** @type {Record<string, number>} */
+const severities = {true: 2, false: 1, null: 0, undefined: 0}
+
+/**
+ * Sort messages in the given vfile.
+ *
+ * @template {VFile} File
+ *   File type.
+ * @param {File} file
+ *   File to sort.
+ * @returns {File}
+ *   Sorted file.
+ */
+// To do: next major: don’t return `file`.
+export function sort(file) {
+  file.messages.sort(comparator)
+  return file
+}
+
+/**
+ * Compare a message.
+ *
+ * @param {VFileMessage} a
+ *   Left message.
+ * @param {VFileMessage} b
+ *   Right message.
+ * @returns {number}
+ *   Order.
+ */
+function comparator(a, b) {
+  return (
+    check(a, b, 'line') ||
+    check(a, b, 'column') ||
+    severities[String(b.fatal)] - severities[String(a.fatal)] ||
+    compare(a, b, 'source') ||
+    compare(a, b, 'ruleId') ||
+    compare(a, b, 'reason') ||
+    0
+  )
+}
+
+/**
+ * Compare a numeric field.
+ *
+ * @param {VFileMessage} a
+ *   Left message.
+ * @param {VFileMessage} b
+ *   Right message.
+ * @param {'column' | 'line'} field
+ *   Numeric field.
+ * @returns {number}
+ *   Order.
+ */
+function check(a, b, field) {
+  return (a[field] || 0) - (b[field] || 0)
+}
+
+/**
+ * @param {VFileMessage} a
+ *   Left message.
+ * @param {VFileMessage} b
+ *   Right message.
+ * @param {'reason' | 'ruleId' | 'source'} field
+ *   String field.
+ * @returns {number}
+ *   Order.
+ */
+function compare(a, b, field) {
+  return String(a[field] || '').localeCompare(b[field] || '')
+}

package.json

@@ -29,6 +29,7 @@
   "main": "index.js",
   "types": "index.d.ts",
   "files": [
+    "lib/",
     "index.d.ts",
     "index.js"
   ],