From bc36ea2a8ac04f67c95ec87d58164aa3fdeb7abf Mon Sep 17 00:00:00 2001
From: Rich Trott <rtrott@gmail.com>
Date: Fri, 11 Mar 2016 20:28:39 -0800
Subject: [PATCH] path: refactor path.format() repeated code

---
 lib/path.js | 40 ++++++++++++++++------------------------
 1 file changed, 16 insertions(+), 24 deletions(-)

diff --git a/lib/path.js b/lib/path.js
index 64e34ecde66858..b42889ebfc7637 100644
--- a/lib/path.js
+++ b/lib/path.js
@@ -140,6 +140,18 @@ function normalizeStringPosix(path, allowAboveRoot) {
   return res;
 }
 
+function _format(sep, pathObject) {
+  const dir = pathObject.dir || pathObject.root;
+  const base = pathObject.base ||
+    ((pathObject.name || '') + (pathObject.ext || ''));
+  if (!dir) {
+    return base;
+  }
+  if (dir === pathObject.root) {
+    return dir + base;
+  }
+  return dir + sep + base;
+}
 
 const win32 = {
   // path.resolve([from ...], to)
@@ -970,20 +982,10 @@ const win32 = {
   format: function format(pathObject) {
     if (pathObject === null || typeof pathObject !== 'object') {
       throw new TypeError(
-          'Parameter "pathObject" must be an object, not ' + typeof pathObject
+        `Parameter "pathObject" must be an object, not ${typeof pathObject}`
       );
     }
-
-    var dir = pathObject.dir || pathObject.root;
-    var base = pathObject.base ||
-      ((pathObject.name || '') + (pathObject.ext || ''));
-    if (!dir) {
-      return base;
-    }
-    if (dir === pathObject.root) {
-      return dir + base;
-    }
-    return dir + win32.sep + base;
+    return _format('\\', pathObject);
   },
 
 
@@ -1525,20 +1527,10 @@ const posix = {
   format: function format(pathObject) {
     if (pathObject === null || typeof pathObject !== 'object') {
       throw new TypeError(
-          'Parameter "pathObject" must be an object, not ' + typeof pathObject
+        `Parameter "pathObject" must be an object, not ${typeof pathObject}`
       );
     }
-
-    var dir = pathObject.dir || pathObject.root;
-    var base = pathObject.base ||
-               ((pathObject.name || '') + (pathObject.ext || ''));
-    if (!dir) {
-      return base;
-    }
-    if (dir === pathObject.root) {
-      return dir + base;
-    }
-    return dir + posix.sep + base;
+    return _format('/', pathObject);
   },