fix ArrayFormatter does not register correctly

Author: neuecc

sandbox/SandboxConsoleApp/Models.cs

@@ -24,6 +24,13 @@ public class NewBase
     public long Description { get; set; }
 }
 
+[MemoryPackable]
+public partial struct FooUnman
+{
+    public float MyProperty { get; set; }
+    public float MyProperty2 { get; set; }
+}
+
 [MemoryPackable]
 public partial class NewProp : NewBase, IMore
 {

src/MemoryPack.Generator/MemoryPackGenerator.Emitter.cs

@@ -181,15 +181,26 @@ string WithEscape(ISymbol symbol)
         {
             if (type.IsUnmanagedType)
             {
-                sb.Append("unmanaged ");
+                sb.Append("GanerateType unmanaged ");
+            }
+            else
+            {
+                sb.Append("GenerateType " + type.GenerateType.ToString() + " ");
             }
             sb.AppendLine(WithEscape(type.Symbol));
             sb.AppendLine("---");
         }
         else
         {
             sb.AppendLine("/// <remarks>");
-            sb.AppendLine("/// MemoryPack serialize members:<br/>");
+            if (type.IsUnmanagedType)
+            {
+                sb.AppendLine("/// MemoryPack GenerateType: unmanaged<br/>");
+            }
+            else
+            {
+                sb.AppendLine("/// MemoryPack GenerateType: " + type.GenerateType.ToString() + "<br/>");
+            }
             sb.AppendLine("/// <code>");
         }
 

src/MemoryPack.Generator/ReferenceSymbols.cs

@@ -270,21 +270,21 @@ public bool Contains(ITypeSymbol symbol)
                 {
                     if (array.IsSZArray)
                     {
-                        return $"MemoryPack.Formatters.ArrayFormatter<{type.FullyQualifiedToString()}>";
+                        return $"MemoryPack.Formatters.ArrayFormatter<{array.ElementType.FullyQualifiedToString()}>";
                     }
                     else
                     {
                         if (array.Rank == 2)
                         {
-                            return $"MemoryPack.Formatters.TwoDimensionalArrayFormatter<{type.FullyQualifiedToString()}>";
+                            return $"MemoryPack.Formatters.TwoDimensionalArrayFormatter<{array.ElementType.FullyQualifiedToString()}>";
                         }
                         else if (array.Rank == 3)
                         {
-                            return $"MemoryPack.Formatters.ThreeDimensionalArrayFormatter<{type.FullyQualifiedToString()}>";
+                            return $"MemoryPack.Formatters.ThreeDimensionalArrayFormatter<{array.ElementType.FullyQualifiedToString()}>";
                         }
                         else if (array.Rank == 4)
                         {
-                            return $"MemoryPack.Formatters.FourDimensionalArrayFormatter<{type.FullyQualifiedToString()}>";
+                            return $"MemoryPack.Formatters.FourDimensionalArrayFormatter<{array.ElementType.FullyQualifiedToString()}>";
                         }
                     }
                 }