make sure standardstrategy is inlined

huge performance benefits. no seriously.  quite spectacular

PersistentMap/KeyStrategies/StandardStrategy.cs

@@ -35,3 +35,19 @@ public readonly struct StandardStrategy<K> : IKeyStrategy<K>
         return _comparer.Compare(x, y);
     }
 }
+public readonly struct StandardStrategy2<K, TComparer> : IKeyStrategy<K>
+    where TComparer : struct, IComparer<K>
+                      {
+                          private readonly TComparer _comparer;
+
+                          public StandardStrategy2(TComparer comparer) => _comparer = comparer;
+
+                          public bool UsesPrefixes => false;
+                          public bool UseBinarySearch => true;
+
+[MethodImpl(MethodImplOptions.AggressiveInlining)]
+public int Compare(K x, K y) => _comparer.Compare(x, y);
+
+                          public long GetPrefix(K key) => 0;
+    }
+

benchmarks/MyBenchMarks/StringBenchmarks.cs

@@ -5,9 +5,15 @@ using System.Linq;
 using BenchmarkDotNet.Attributes;
 using LanguageExt;
 using PersistentMap;
-
+using System.Runtime.CompilerServices;
 namespace MapBenchmarks;
 
+public readonly struct OrdinalComparer : IComparer<string>
+{
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public int Compare(string? x, string? y) => string.CompareOrdinal(x, y);
+}
+
 [MemoryDiagnoser]
 public class StringMapBenchmarks
 {
@@ -28,10 +34,10 @@ public class StringMapBenchmarks
     private LanguageExt.Map<string, int> _extMap;
     private LanguageExt.HashMap<string, int> _extHashMap;
     
-    private PersistentMap<string, int, StandardStrategy<string>> _persistentMapStandard;
+    private PersistentMap<string, int, StandardStrategy2<string, OrdinalComparer>> _persistentMapStandard;
     private PersistentMap<string, int, UnicodeStrategy> _persistentMapUnicode;
 
-    private readonly StandardStrategy<string> _stdStrategy = new StandardStrategy<string>();
+    private readonly StandardStrategy2<string, OrdinalComparer> _stdStrategy = new StandardStrategy2<string, OrdinalComparer>(new OrdinalComparer());
     private readonly UnicodeStrategy _uniStrategy = new UnicodeStrategy();
 
     [GlobalSetup]
@@ -71,7 +77,7 @@ public class StringMapBenchmarks
             _extHashMap = _extHashMap.AddOrUpdate(_allKeys[i], i);
         }
 
-        var transStd = BaseOrderedMap<string, int, StandardStrategy<string>>.CreateTransient(_stdStrategy);
+        var transStd = BaseOrderedMap<string, int, StandardStrategy2<string,OrdinalComparer>>.CreateTransient(_stdStrategy);
         var transUni = BaseOrderedMap<string, int, UnicodeStrategy>.CreateTransient(_uniStrategy);
         for (int i = 0; i < _allKeys.Length; i++)
         {
@@ -91,9 +97,9 @@ public class StringMapBenchmarks
     // --- 1. BUILD ---
     
     [Benchmark]
-    public PersistentMap<string, int, StandardStrategy<string>> Build_TransientMap_Standard()
+    public PersistentMap<string, int, StandardStrategy2<string,OrdinalComparer>> Build_TransientMap_Standard()
     {
-        var map = BaseOrderedMap<string, int, StandardStrategy<string>>.CreateTransient(_stdStrategy);
+        var map = BaseOrderedMap<string, int,  StandardStrategy2<string,OrdinalComparer>>.CreateTransient(_stdStrategy);
         for (int i = 0; i < _allKeys.Length; i++) map.Set(_allKeys[i], i);
         return map.ToPersistent();
     }
@@ -207,7 +213,7 @@ public class StringMapBenchmarks
     }
 
     [Benchmark]
-    public PersistentMap<string, int, StandardStrategy<string>> Update_PersistentMap_Standard()
+    public PersistentMap<string, int, StandardStrategy2<string, OrdinalComparer>> Update_PersistentMap_Standard()
     {
         var map = _persistentMapStandard;
         foreach (var k in _updateKeys) map = map.Set(k, 999);
@@ -222,7 +228,7 @@ public class StringMapBenchmarks
     }
 
     [Benchmark]
-    public PersistentMap<string, int, StandardStrategy<string>> Update_TransientMap_Standard()
+    public PersistentMap<string, int, StandardStrategy2<string, OrdinalComparer>> Update_TransientMap_Standard()
     {
         var transient = _persistentMapStandard.ToTransient();
         foreach (var k in _updateKeys) transient.Set(k, 999);
@@ -272,7 +278,7 @@ public class StringMapBenchmarks
     }
 
     [Benchmark]
-    public PersistentMap<string, int, StandardStrategy<string>> UpdateSet_PersistentMap_Standard()
+    public PersistentMap<string, int, StandardStrategy2<string, OrdinalComparer>> UpdateSet_PersistentMap_Standard()
     {
         var map = _persistentMapStandard;
         foreach (var k in _mixedKeys) map = map.Set(k, 999);
@@ -288,7 +294,7 @@ public class StringMapBenchmarks
     }
 
     [Benchmark]
-    public PersistentMap<string, int, StandardStrategy<string>> UpdateSet_TransientMap_Standard()
+    public PersistentMap<string, int, StandardStrategy2<string, OrdinalComparer>> UpdateSet_TransientMap_Standard()
     {
         var transient = _persistentMapStandard.ToTransient();
         foreach (var k in _mixedKeys) transient.Set(k, 999);
@@ -388,7 +394,7 @@ public class StringMapBenchmarks
     }
 
     [Benchmark]
-    public PersistentMap<string, int, StandardStrategy<string>> Remove_PersistentMap_Standard()
+    public PersistentMap<string, int, StandardStrategy2<string, OrdinalComparer>> Remove_PersistentMap_Standard()
     {
         var map = _persistentMapStandard;
         foreach (var k in _removeKeys) map = map.Remove(k);
@@ -404,7 +410,7 @@ public class StringMapBenchmarks
     }
 
     [Benchmark]
-    public PersistentMap<string, int, StandardStrategy<string>> Remove_TransientMap_Standard()
+    public PersistentMap<string, int, StandardStrategy2<string, OrdinalComparer>> Remove_TransientMap_Standard()
     {
         var transient = _persistentMapStandard.ToTransient();
         foreach (var k in _removeKeys) transient.Remove(k);