From ba968e34b183ae190019e8e947447891ed78ab74 Mon Sep 17 00:00:00 2001
From: roytam1 <roytam@gmail.com>
Date: Fri, 7 Jul 2023 10:04:09 +0800
Subject: [PATCH] import from UXP: Issue #2259 - Add mozilla::Vector ->
 mozilla::Span implicit conversion (9914c061)

---
 mfbt/Vector.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/mfbt/Vector.h b/mfbt/Vector.h
index 3fe093bdd..39a93c86a 100644
--- a/mfbt/Vector.h
+++ b/mfbt/Vector.h
@@ -19,6 +19,7 @@
 #include "mozilla/Move.h"
 #include "mozilla/OperatorNewExtensions.h"
 #include "mozilla/ReentrancyGuard.h"
+#include "mozilla/Span.h"
 #include "mozilla/TemplateLib.h"
 #include "mozilla/TypeTraits.h"
 
@@ -554,6 +555,16 @@ public:
     return *(end() - 1);
   }
 
+  operator mozilla::Span<const T>() const
+  {
+    return mozilla::MakeSpan(mBegin, mLength);
+  }
+
+  operator mozilla::Span<T>()
+  {
+    return mozilla::MakeSpan(mBegin, mLength);
+  }
+
   class Range
   {
     friend class Vector;