1 files changed, 24 insertions, 0 deletions
diff --git a/src/System.Private.CoreLib/shared/System/Runtime/InteropServices/MemoryMarshal.cs b/src/System.Private.CoreLib/shared/System/Runtime/InteropServices/MemoryMarshal.cs
index 6544081df..316ce12aa 100644
--- a/src/System.Private.CoreLib/shared/System/Runtime/InteropServices/MemoryMarshal.cs
+++ b/src/System.Private.CoreLib/shared/System/Runtime/InteropServices/MemoryMarshal.cs
@@ -98,5 +98,29 @@ namespace System.Runtime.InteropServices
             for (int i = 0; i < memory.Length; i++)
                 yield return memory.Span[i];
         }
+
+        /// <summary>Attempts to get the underlying <see cref="string"/> from a <see cref="ReadOnlyMemory{T}"/>.</summary>
+        /// <param name="readOnlyMemory">The memory that may be wrapping a <see cref="string"/> object.</param>
+        /// <param name="text">The string.</param>
+        /// <param name="start">The starting location in <paramref name="text"/>.</param>
+        /// <param name="length">The number of items in <paramref name="text"/>.</param>
+        /// <returns></returns>
+        public static bool TryGetString(ReadOnlyMemory<char> readOnlyMemory, out string text, out int start, out int length)
+        {
+            if (readOnlyMemory.GetObjectStartLength(out int offset, out int count) is string s)
+            {
+                text = s;
+                start = offset;
+                length = count;
+                return true;
+            }
+            else
+            {
+                text = null;
+                start = 0;
+                length = 0;
+                return false;
+            }
+        }
     }
 }