From 6f397e23f1ec63aa96521d81fc7c7aea75b0e274 Mon Sep 17 00:00:00 2001
From: Andreas Kling <awesomekling@gmail.com>
Date: Sat, 27 Jul 2019 15:26:51 +0200
Subject: [PATCH] ByteBuffer: Add slice_view(). Works like slice() but makes a
 wrapper only.

So we already have ByteBuffer::wrap() which is like a StringView for random
data. This might not be the best abstraction actually, but this will be
immediately useful so let's add it.
---
 AK/ByteBuffer.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/AK/ByteBuffer.h b/AK/ByteBuffer.h
index f2cc8d623f..f86a709831 100644
--- a/AK/ByteBuffer.h
+++ b/AK/ByteBuffer.h
@@ -155,6 +155,17 @@ public:
             m_impl->trim(size);
     }
 
+    ByteBuffer slice_view(int offset, int size) const
+    {
+        if (is_null())
+            return {};
+        if (offset >= this->size())
+            return {};
+        if (offset + size >= this->size())
+            size = this->size() - offset;
+        return wrap(offset_pointer(offset), size);
+    }
+
     ByteBuffer slice(int offset, int size) const
     {
         if (is_null())