Replace usage of ArrayPool, remove dependency System.Buffers

Author: axunonb

Ical.Net/Ical.Net.csproj

@@ -11,9 +11,6 @@
     <ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.0' OR '$(TargetFramework)' == 'netstandard2.1'">
         <PackageReference Include="Portable.System.DateTimeOnly" Version="8.0.1" />
     </ItemGroup>
-    <ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.0'">
-        <PackageReference Include="System.Buffers" Version="4.6.0" />
-    </ItemGroup>
     <ItemGroup>
         <AssemblyAttribute Include="System.Runtime.CompilerServices.InternalsVisibleToAttribute">
             <_Parameter1>Ical.Net.Tests, PublicKey=0024000004800000940000000602000000240000525341310004000001000100a1f790f70176d52efbd248577bdb292be2d0acc62f3227c523e267d64767f207f81536c77bb91d17031a5afbc2d69cd3b5b3b9c98fa8df2cd363ec90a08639a1213ad70079eff666bcc14cf6574b899f4ad0eac672c8f763291cb1e0a2304d371053158cb398b2e6f9eeb45db7d1b4d2bbba1f985676c5ca4602fab3671d34bf</_Parameter1>

Ical.Net/Utility/TextUtil.cs

@@ -4,7 +4,6 @@
 //
 
 using System;
-using System.Buffers;
 using System.Collections.Generic;
 using System.IO;
 using System.Text;
@@ -30,47 +29,38 @@ public static void FoldLines(this StringBuilder result, string inputLine)
 
         // Use ArrayPool<char> to rent arrays for processing
         // Cannot use Span<char> and stackalloc because netstandard2.0 does not support it
-        var arrayPool = ArrayPool<char>.Shared;
-        var currentLineArray = arrayPool.Rent(76); // 75 characters + 1 space
+        var currentLineArray = new char[76]; // 75 characters + 1 space
 
-        try
-        {
-            var currentLineIndex = 0;
-            var byteCount = 0;
-            var charCount = 0;
-
-            while (charCount < inputLine.Length)
-            {
-                var currentCharByteCount = Encoding.UTF8.GetByteCount([inputLine[charCount]]);
+        var currentLineIndex = 0;
+        var byteCount = 0;
+        var charCount = 0;
 
-                if (byteCount + currentCharByteCount > 75)
-                {
-                    result.Append(currentLineArray, 0, currentLineIndex);
-                    result.Append(SerializationConstants.LineBreak);
-
-                    currentLineIndex = 0;
-                    byteCount = 1;
-                    currentLineArray[currentLineIndex++] = ' ';
-                }
-
-                currentLineArray[currentLineIndex++] = inputLine[charCount];
-                byteCount += currentCharByteCount;
-                charCount++;
-            }
+        while (charCount < inputLine.Length)
+        {
+            var currentCharByteCount = Encoding.UTF8.GetByteCount([inputLine[charCount]]);
 
-            // Append the remaining characters to the result
-            if (currentLineIndex > 0)
+            if (byteCount + currentCharByteCount > 75)
             {
                 result.Append(currentLineArray, 0, currentLineIndex);
+                result.Append(SerializationConstants.LineBreak);
+
+                currentLineIndex = 0;
+                byteCount = 1;
+                currentLineArray[currentLineIndex++] = ' ';
             }
 
-            result.Append(SerializationConstants.LineBreak);
+            currentLineArray[currentLineIndex++] = inputLine[charCount];
+            byteCount += currentCharByteCount;
+            charCount++;
         }
-        finally
+
+        // Append the remaining characters to the result
+        if (currentLineIndex > 0)
         {
-            // Return the rented array to the pool
-            arrayPool.Return(currentLineArray);
+            result.Append(currentLineArray, 0, currentLineIndex);
         }
+
+        result.Append(SerializationConstants.LineBreak);
     }
 
     public static IEnumerable<string> Chunk(string str, int chunkSize = 73)