fix build

danmoseley · danmoseley · commit 41ee8fef233b · 2021-12-30T21:11:59.000-07:00
diff --git a/src/libraries/System.Private.CoreLib/src/System/IO/FileSystem.Windows.cs b/src/libraries/System.Private.CoreLib/src/System/IO/FileSystem.Windows.cs
@@ -147,7 +147,7 @@ public static void MoveFile(string sourceFullPath, string destFullPath, bool ove
 
         private static SafeFileHandle OpenHandleToWriteAttributes(string fullPath, bool asDirectory)
         {
-            if (fullPath.Length == PathInternal.GetRootLength(fullPath) && fullPath[1] == Path.VolumeSeparatorChar)
+            if (fullPath.Length == PathInternal.GetRootLength(fullPath.AsSpan()) && fullPath[1] == Path.VolumeSeparatorChar)
             {
                 // intentionally not fullpath, most upstack public APIs expose this as path.
                 throw new ArgumentException(SR.Arg_PathIsVolume, "path");

Original file line number	Diff line number	Diff line change
`@@ -147,7 +147,7 @@ public static void MoveFile(string sourceFullPath, string destFullPath, bool ove`
`147`	`147`
`148`	`148`	`private static SafeFileHandle OpenHandleToWriteAttributes(string fullPath, bool asDirectory)`
`149`	`149`	`{`
`150`		`- if (fullPath.Length == PathInternal.GetRootLength(fullPath) && fullPath[1] == Path.VolumeSeparatorChar)`
	`150`	`+ if (fullPath.Length == PathInternal.GetRootLength(fullPath.AsSpan()) && fullPath[1] == Path.VolumeSeparatorChar)`
`151`	`151`	`{`
`152`	`152`	`// intentionally not fullpath, most upstack public APIs expose this as path.`
`153`	`153`	`throw new ArgumentException(SR.Arg_PathIsVolume, "path");`