Explicitly throw the OutOfMemoryException instead of relying on Share…

…d.Rent/Array constructor. Because it can behave differently in OSX, where it supports int.MaxValue array size. (#34040)
dotnet · Mar 31, 2020 · 562232c · 562232c
1 parent b85563d
commit 562232c
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Showing 2 changed files with 8 additions and 1 deletion.
diff --git a/src/libraries/System.Text.Json/src/System/Text/Json/Serialization/PooledByteBufferWriter.cs b/src/libraries/System.Text.Json/src/System/Text/Json/Serialization/PooledByteBufferWriter.cs
@@ -146,7 +146,7 @@ private void CheckAndResizeBuffer(int sizeHint)
                     newSize = currentLength + sizeHint;
                     if ((uint)newSize > int.MaxValue)
                     {
-                        newSize = int.MaxValue;
+                        ThrowHelper.ThrowOutOfMemoryException_BufferMaximumSizeExceeded((uint)newSize);
                     }
                 }
 

diff --git a/src/libraries/System.Text.Json/src/System/Text/Json/ThrowHelper.Serialization.cs b/src/libraries/System.Text.Json/src/System/Text/Json/ThrowHelper.Serialization.cs
@@ -12,6 +12,13 @@ namespace System.Text.Json
 {
     internal static partial class ThrowHelper
     {
+        [DoesNotReturn]
+        [MethodImpl(MethodImplOptions.NoInlining)]
+        public static void ThrowOutOfMemoryException_BufferMaximumSizeExceeded(uint capacity)
+        {
+            throw new OutOfMemoryException(SR.Format(SR.BufferMaximumSizeExceeded, capacity));
+        }
+
         [DoesNotReturn]
         [MethodImpl(MethodImplOptions.NoInlining)]
         public static void ThrowArgumentException_DeserializeWrongType(Type type, object value)