Implement `NtfsFileReference` to replace an opaque u64.

1 files changed, 21 insertions, 0 deletions

diff --git a/src/file_reference.rs b/src/file_reference.rs
new file mode 100644
index 0000000..337d7c5
--- /dev/null
+++ b/src/file_reference.rs
@@ -0,0 +1,21 @@
+// Copyright 2021 Colin Finck <colin@reactos.org>
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+use binread::BinRead;
+
+#[derive(BinRead, Clone, Debug)]
+pub struct NtfsFileReference(u64);
+
+impl NtfsFileReference {
+    pub(crate) const fn new(file_reference_data: u64) -> Self {
+        Self(file_reference_data)
+    }
+
+    pub fn file_record_number(&self) -> u64 {
+        self.0 >> 16
+    }
+
+    pub fn sequence_number(&self) -> u16 {
+        self.0 as u16
+    }
+}