diff --git a/code/Binary.SourceGeneration/Constants.cs b/code/Binary.SourceGeneration/Constants.cs
index 84f49cd9..7888f29d 100644
--- a/code/Binary.SourceGeneration/Constants.cs
+++ b/code/Binary.SourceGeneration/Constants.cs
@@ -16,16 +16,10 @@ public static class Constants
 
     public const string TupleKeyAttributeTypeName = "Mikodev.Binary.Attributes.TupleKeyAttribute";
 
-    public const string AllocatorTypeName = "Mikodev.Binary.Allocator";
-
-    public const string ConverterTypeName = "Mikodev.Binary.Converter";
-
     public const string IConverterTypeName = "Mikodev.Binary.IConverter";
 
     public const string IConverterCreatorTypeName = "Mikodev.Binary.IConverterCreator";
 
-    public const string IGeneratorContextTypeName = "Mikodev.Binary.IGeneratorContext";
-
     public const string ConverterAttributeTypeName = "Mikodev.Binary.Attributes.ConverterAttribute";
 
     public const string ConverterCreatorAttributeTypeName = "Mikodev.Binary.Attributes.ConverterCreatorAttribute";
diff --git a/code/Binary.SourceGeneration/Contexts/CollectionConverterContext.cs b/code/Binary.SourceGeneration/Contexts/CollectionConverterContext.cs
index 7811ba6a..14c4bfcc 100644
--- a/code/Binary.SourceGeneration/Contexts/CollectionConverterContext.cs
+++ b/code/Binary.SourceGeneration/Contexts/CollectionConverterContext.cs
@@ -44,7 +44,7 @@ private void AppendEncodeMethod()
     {
         var info = this.info;
         var elements = info.ElementTypes;
-        Output.AppendIndent(2, $"public override void Encode(ref {Constants.AllocatorTypeName} allocator, {SymbolTypeFullName} item)");
+        Output.AppendIndent(2, $"public override void Encode(ref Mikodev.Binary.Allocator allocator, {SymbolTypeFullName} item)");
         Output.AppendIndent(2, $"{{");
         AppendEnsureContext();
         Output.AppendIndent(3, $"foreach (var i in item)");
diff --git a/code/Binary.SourceGeneration/Contexts/InlineArrayConverterContext.cs b/code/Binary.SourceGeneration/Contexts/InlineArrayConverterContext.cs
index 44b21968..bc963dea 100644
--- a/code/Binary.SourceGeneration/Contexts/InlineArrayConverterContext.cs
+++ b/code/Binary.SourceGeneration/Contexts/InlineArrayConverterContext.cs
@@ -31,10 +31,9 @@ private void AppendConverterTail()
 
     private void AppendEncodeMethod()
     {
-        var info = this.info;
-        Output.AppendIndent(2, $"public override void Encode(ref {Constants.AllocatorTypeName} allocator, {SymbolTypeFullName} item)");
+        Output.AppendIndent(2, $"public override void Encode(ref Mikodev.Binary.Allocator allocator, {SymbolTypeFullName} item)");
         Output.AppendIndent(2, $"{{");
-        Output.AppendIndent(3, $"var buffer = System.Runtime.InteropServices.MemoryMarshal.CreateReadOnlySpan(ref System.Runtime.CompilerServices.Unsafe.As<{SymbolTypeFullName}, {GetTypeFullName(0)}>(ref item), {info.Length});");
+        Output.AppendIndent(3, $"var buffer = (System.ReadOnlySpan<{GetTypeFullName(0)}>)item;");
         Output.AppendIndent(3, $"for (var i = 0; i < buffer.Length; i++)");
         Output.AppendIndent(4, $"cvt0.EncodeAuto(ref allocator, buffer[i]);");
         Output.AppendIndent(2, $"}}");
@@ -43,13 +42,12 @@ private void AppendEncodeMethod()
 
     private void AppendDecodeMethod()
     {
-        var info = this.info;
         Output.AppendIndent();
         Output.AppendIndent(2, $"public override {SymbolTypeFullName} Decode(in System.ReadOnlySpan<byte> span)");
         Output.AppendIndent(2, $"{{");
         Output.AppendIndent(3, $"var body = span;");
         Output.AppendIndent(3, $"var result = default({SymbolTypeFullName});");
-        Output.AppendIndent(3, $"var buffer = System.Runtime.InteropServices.MemoryMarshal.CreateSpan(ref System.Runtime.CompilerServices.Unsafe.As<{SymbolTypeFullName}, {GetTypeFullName(0)}>(ref result), {info.Length});");
+        Output.AppendIndent(3, $"var buffer = (System.Span<{GetTypeFullName(0)}>)result;");
         Output.AppendIndent(3, $"for (var i = 0; i < buffer.Length; i++)");
         Output.AppendIndent(4, $"buffer[i] = cvt0.DecodeAuto(ref body);");
         Output.AppendIndent(3, $"return result;");
diff --git a/code/Binary.SourceGeneration/Contexts/NamedObjectConverterContext.cs b/code/Binary.SourceGeneration/Contexts/NamedObjectConverterContext.cs
index 22d809b2..8e9cfa64 100644
--- a/code/Binary.SourceGeneration/Contexts/NamedObjectConverterContext.cs
+++ b/code/Binary.SourceGeneration/Contexts/NamedObjectConverterContext.cs
@@ -45,7 +45,7 @@ private void AppendEnsureContext()
 
     private void AppendEncodeContext(int indent, int i)
     {
-        Output.AppendIndent(indent, $"{Constants.AllocatorTypeName}.Append(ref allocator, new System.ReadOnlySpan<byte>(keys[{i}]));");
+        Output.AppendIndent(indent, $"Mikodev.Binary.Allocator.Append(ref allocator, new System.ReadOnlySpan<byte>(keys[{i}]));");
         Output.AppendIndent(indent, $"cvt{i}.EncodeWithLengthPrefix(ref allocator, var{i});");
         CancellationToken.ThrowIfCancellationRequested();
     }
@@ -53,7 +53,7 @@ private void AppendEncodeContext(int indent, int i)
     private void AppendEncodeMethod()
     {
         var members = this.members;
-        Output.AppendIndent(2, $"public override void Encode(ref {Constants.AllocatorTypeName} allocator, {SymbolTypeFullName} item)");
+        Output.AppendIndent(2, $"public override void Encode(ref Mikodev.Binary.Allocator allocator, {SymbolTypeFullName} item)");
         Output.AppendIndent(2, $"{{");
         AppendEnsureContext();
         for (var i = 0; i < members.Length; i++)
@@ -110,7 +110,7 @@ private void AppendConverterCreatorBody()
         var members = this.members;
         Output.AppendIndent(3, $"var names = new string[] {{ ", $" }};", members.Length, x => members[x].NamedKeyLiteral);
         Output.AppendIndent(3, $"var optional = new bool[] {{ ", $" }};", members.Length, x => members[x].IsOptional ? "true" : "false");
-        Output.AppendIndent(3, $"var encoding = ({Constants.ConverterTypeName}<string>)context.GetConverter(typeof(string));");
+        Output.AppendIndent(3, $"var encoding = (Mikodev.Binary.Converter<string>)context.GetConverter(typeof(string));");
         for (var i = 0; i < members.Length; i++)
         {
             var member = members[i];
diff --git a/code/Binary.SourceGeneration/Contexts/TupleObjectConverterContext.cs b/code/Binary.SourceGeneration/Contexts/TupleObjectConverterContext.cs
index 2645f7bb..6df2765d 100644
--- a/code/Binary.SourceGeneration/Contexts/TupleObjectConverterContext.cs
+++ b/code/Binary.SourceGeneration/Contexts/TupleObjectConverterContext.cs
@@ -75,7 +75,7 @@ private void AppendEncodeMethod(bool auto)
         var methodName = auto ? "EncodeAuto" : "Encode";
         if (auto)
             Output.AppendIndent();
-        Output.AppendIndent(2, $"public override void {methodName}(ref {Constants.AllocatorTypeName} allocator, {SymbolTypeFullName} item)");
+        Output.AppendIndent(2, $"public override void {methodName}(ref Mikodev.Binary.Allocator allocator, {SymbolTypeFullName} item)");
         Output.AppendIndent(2, $"{{");
         AppendEnsureContext();
         for (var i = 0; i < members.Length; i++)
diff --git a/code/Binary.SourceGeneration/SourceGeneratorContext.cs b/code/Binary.SourceGeneration/SourceGeneratorContext.cs
index 476c5c48..f466f6da 100644
--- a/code/Binary.SourceGeneration/SourceGeneratorContext.cs
+++ b/code/Binary.SourceGeneration/SourceGeneratorContext.cs
@@ -52,7 +52,7 @@ public string GetConverterTypeFullName(ITypeSymbol symbol)
     {
         var dictionary = this.converterTypeFullNameCache;
         if (dictionary.TryGetValue(symbol, out var result) is false)
-            dictionary.Add(symbol, result = $"{Constants.ConverterTypeName}<{GetTypeFullName(symbol)}>");
+            dictionary.Add(symbol, result = $"Mikodev.Binary.Converter<{GetTypeFullName(symbol)}>");
         return result;
     }
 
diff --git a/code/Binary.SourceGeneration/SymbolConverterContext.cs b/code/Binary.SourceGeneration/SymbolConverterContext.cs
index 404cfdd1..adbcf632 100644
--- a/code/Binary.SourceGeneration/SymbolConverterContext.cs
+++ b/code/Binary.SourceGeneration/SymbolConverterContext.cs
@@ -63,7 +63,7 @@ protected void AppendConverterCreatorHead()
         Output.AppendIndent(1, $"private sealed class {OutputConverterCreatorTypeName} : {Constants.IConverterCreatorTypeName}");
         Output.AppendIndent(1, $"{{");
 
-        Output.AppendIndent(2, $"public {Constants.IConverterTypeName} GetConverter({Constants.IGeneratorContextTypeName} context, System.Type type)");
+        Output.AppendIndent(2, $"public {Constants.IConverterTypeName} GetConverter(Mikodev.Binary.IGeneratorContext context, System.Type type)");
         Output.AppendIndent(2, $"{{");
         Output.AppendIndent(3, $"if (type != typeof({SymbolTypeFullName}))");
         Output.AppendIndent(4, $"return null;");