fs utils getFileInfoType() return undefined when not found (denoland/deno_std#341)

Original: https://github.com/denoland/deno_std/commit/0a6180016383b9d527bb96556ae0bcdabe5161eb

1 files changed, 12 insertions, 12 deletions

diff --git a/fs/utils.ts b/fs/utils.ts
index 410e45909..06b4c295c 100644
--- a/fs/utils.ts
+++ b/fs/utils.ts
@@ -17,24 +17,24 @@ export function isSubdir(
   const srcArray = src.split(sep);
   const destArray = dest.split(sep);
 
-  return srcArray.reduce((acc, current, i) => {
+  return srcArray.reduce((acc: boolean, current, i) => {
     return acc && destArray[i] === current;
   }, true);
 }
 
-export enum PathType {
-  file = "file",
-  dir = "dir",
-  symlink = "symlink"
-}
+export type PathType = "file" | "dir" | "symlink";
 
-/* Get a human readable file type string */
-export function getFileInfoType(fileInfo: Deno.FileInfo): PathType | null {
+/**
+ * Get a human readable file type string.
+ *
+ * @param fileInfo A FileInfo describes a file and is returned by `stat`, `lstat`
+ */
+export function getFileInfoType(fileInfo: Deno.FileInfo): PathType {
   return fileInfo.isFile()
-    ? PathType.file
+    ? "file"
     : fileInfo.isDirectory()
-    ? PathType.dir
+    ? "dir"
     : fileInfo.isSymlink()
-    ? PathType.symlink
-    : null;
+    ? "symlink"
+    : undefined;
 }