From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Fri, 19 Apr 2024 02:47:55 +0200
Subject: Adding upstream version 124.0.1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 xpcom/base/MacStringHelpers.mm | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 xpcom/base/MacStringHelpers.mm

(limited to 'xpcom/base/MacStringHelpers.mm')

diff --git a/xpcom/base/MacStringHelpers.mm b/xpcom/base/MacStringHelpers.mm
new file mode 100644
index 0000000000..cf0b03665d
--- /dev/null
+++ b/xpcom/base/MacStringHelpers.mm
@@ -0,0 +1,35 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "MacStringHelpers.h"
+#include "nsObjCExceptions.h"
+
+#include "mozilla/IntegerTypeTraits.h"
+#include <limits>
+
+namespace mozilla {
+
+nsresult CopyCocoaStringToXPCOMString(NSString* aFrom, nsAString& aTo) {
+  NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+  NSUInteger len = [aFrom length];
+  if (len > std::numeric_limits<nsAString::size_type>::max()) {
+    return NS_ERROR_OUT_OF_MEMORY;
+  }
+
+  if (!aTo.SetLength(len, mozilla::fallible)) {
+    return NS_ERROR_OUT_OF_MEMORY;
+  }
+
+  [aFrom getCharacters:reinterpret_cast<unichar*>(aTo.BeginWriting())
+                 range:NSMakeRange(0, len)];
+
+  return NS_OK;
+
+  NS_OBJC_END_TRY_BLOCK_RETURN(NS_ERROR_FAILURE);
+}
+
+}  // namespace mozilla
-- 
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