Added inlining and better exception message

Author: linkdotnet

CHANGELOG.md

@@ -9,6 +9,9 @@ All notable changes to **ValueStringBuilder** will be documented in this file. T
 ### Added
 - `Append(char* value, int length)` overload.
 
+### Changed
+- Better exception when appending `ISpanFormattable` and buffer is not large enough.
+
 ## [1.9.0] - 2022-11-18
 
 ### Added

src/LinkDotNet.StringBuilder/ValueStringBuilder.Append.cs

@@ -44,6 +44,7 @@ public void Append(scoped ReadOnlySpan<char> str)
     /// </summary>
     /// <param name="value">The pointer to the start of the buffer.</param>
     /// <param name="length">The number of characters in the buffer.</param>
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public unsafe void Append(char* value, int length)
     {
         Append(new ReadOnlySpan<char>(value, length));
@@ -87,7 +88,7 @@ private void AppendSpanFormattable<T>(T value, ReadOnlySpan<char> format = defau
         }
         else
         {
-            throw new InvalidOperationException($"Could not insert {value} into given buffer. Is the buffer large enough?");
+            throw new InvalidOperationException($"Could not insert {value} into given buffer. Is the buffer (size: {bufferSize}) large enough?");
         }
     }
 }

src/LinkDotNet.StringBuilder/ValueStringBuilder.Insert.cs

@@ -90,7 +90,7 @@ private void InsertSpanFormattable<T>(int index, T value, ReadOnlySpan<char> for
         }
         else
         {
-            throw new InvalidOperationException($"Could not insert {value} into given buffer. Is the buffer large enough?");
+            throw new InvalidOperationException($"Could not insert {value} into given buffer. Is the buffer (size: {bufferSize}) large enough?");
         }
     }
 }