Merge pull request #298 from vrm-c/generate_json_serializer

Generate json serializer

Assets/VRM.Samples/Editor/Tests/VRMImportExportTests.cs

@@ -84,10 +84,12 @@ public void ImportExportTest()
                 var vrm = VRMExporter.Export(context.Root);
 
                 // TODO: Check contents in JSON
-                /*var exportJson = */JsonParser.Parse(vrm.ToJson());
+                /*var exportJson = */
+                JsonParser.Parse(vrm.ToJson());
 
                 // TODO: Check contents in JSON
-                /*var newExportedJson = */JsonParser.Parse(JsonSchema.FromType<glTF>().Serialize(vrm));
+                /*var newExportedJson = */
+                JsonParser.Parse(JsonSchema.FromType<glTF>().Serialize(vrm));
 
                 /*
                 foreach (var kv in importJson.Diff(exportJson))
@@ -117,5 +119,35 @@ public void MeshCopyTest()
                 MeshTests.MeshEquals(src, dst);
             }
         }
+
+        [Test]
+        public void SerializerCompare()
+        {
+            // Aliciaを古いデシリアライザでロードする
+            var path = AliciaPath;
+            var context = new VRMImporterContext();
+            context.ParseGlb(File.ReadAllBytes(path));
+            var oldJson = context.GLTF.ToJson().ParseAsJson().ToString("  ");
+
+            // 生成シリアライザでJSON化する
+            var f = new JsonFormatter();
+            f.GenSerialize(context.GLTF);
+            var parsed = f.ToString().ParseAsJson();
+            var newJson = parsed.ToString("  ");
+
+            File.WriteAllText("old.json", oldJson);
+            File.WriteAllText("new.json", newJson);
+
+            // 比較
+            Assert.AreEqual(oldJson, newJson);
+
+            // 生成デシリアライザでロードする
+            var ff = new JsonFormatter();
+            var des = GltfDeserializer.Deserialize(parsed);
+            ff.Clear();
+            ff.GenSerialize(des);
+            var desJson = ff.ToString().ParseAsJson().ToString("  ");
+            Assert.AreEqual(oldJson, desJson);
+        }
     }
 }

Assets/VRM/UniGLTF/Editor/Serialization/CollectionSerialization.cs

@@ -0,0 +1,115 @@
+using System;
+using System.IO;
+
+namespace UniGLTF
+{
+    public class ArraySerialization : FunctionSerializationBase
+    {
+        IValueSerialization m_inner;
+
+        public ArraySerialization(Type t, IValueSerialization inner)
+        {
+            ValueType = t;
+            m_inner = inner;
+        }
+        public override void GenerateDeserializer(StreamWriter writer, string callName)
+        {
+            var itemCallName = callName + "_ARRAY";
+
+            writer.Write(@"
+public static $0 $2(ListTreeNode<JsonValue> parsed)
+{
+    var value = new $1[parsed.GetArrayCount()];
+    int i=0;
+    foreach(var x in parsed.ArrayItems())
+    {
+        value[i++] = $3;
+    }
+	return value;
+} 
+"
+.Replace("$0", UniJSON.JsonSchemaAttribute.GetTypeName(ValueType))
+.Replace("$1", m_inner.ValueType.Name)
+.Replace("$2", callName)
+.Replace("$3", m_inner.GenerateDeserializerCall(itemCallName, "x"))
+);
+
+            if (!m_inner.IsInline)
+            {
+                m_inner.GenerateDeserializer(writer, itemCallName);
+            }
+        }
+    }
+
+    public class ListSerialization : FunctionSerializationBase
+    {
+        IValueSerialization m_inner;
+
+        public ListSerialization(Type t, IValueSerialization inner)
+        {
+            ValueType = t;
+            m_inner = inner;
+        }
+        public override void GenerateDeserializer(StreamWriter writer, string callName)
+        {
+            var itemCallName = callName + "_LIST";
+            writer.Write(@"
+public static $0 $2(ListTreeNode<JsonValue> parsed)
+{
+    var value = new List<$1>();
+    foreach(var x in parsed.ArrayItems())
+    {
+        value.Add($3);
+    }
+	return value;
+}"
+.Replace("$0", UniJSON.JsonSchemaAttribute.GetTypeName(ValueType))
+.Replace("$1", m_inner.ValueType.Name)
+.Replace("$2", callName)
+.Replace("$3", m_inner.GenerateDeserializerCall(itemCallName, "x"))
+);
+
+            if (!m_inner.IsInline)
+            {
+                m_inner.GenerateDeserializer(writer, itemCallName);
+            }
+        }
+    }
+
+    public class StringKeyDictionarySerialization : FunctionSerializationBase
+    {
+        IValueSerialization m_inner;
+
+        public StringKeyDictionarySerialization(Type t, IValueSerialization inner)
+        {
+            ValueType = t;
+            m_inner = inner;
+        }
+        public override void GenerateDeserializer(StreamWriter writer, string callName)
+        {
+            var itemCallName = callName + "_DICT";
+            writer.Write(@"
+ 
+public static $0 $2(ListTreeNode<JsonValue> parsed)
+{
+    var value = new Dictionary<string, $1>();
+    foreach(var kv in parsed.ObjectItems())
+    {
+        value.Add(kv.Key.GetString(), $3);
+    }
+	return value;
+}
+"
+.Replace("$0", UniJSON.JsonSchemaAttribute.GetTypeName(ValueType))
+.Replace("$1", m_inner.ValueType.Name)
+.Replace("$2", callName)
+.Replace("$3", m_inner.GenerateDeserializerCall(itemCallName, "kv.Value"))
+);
+
+            if (!m_inner.IsInline)
+            {
+                m_inner.GenerateDeserializer(writer, itemCallName);
+            }
+        }
+    }
+}

Assets/VRM/UniGLTF/Editor/Serialization/DeserializerGenerator.cs

@@ -0,0 +1,61 @@
+using System.IO;
+using System.Reflection;
+using System.Text;
+using UnityEditor;
+using UnityEngine;
+
+namespace UniGLTF
+{
+    public static class DeserializerGenerator
+    {
+        public const BindingFlags FIELD_FLAGS = BindingFlags.Instance | BindingFlags.Public;
+
+        static string OutPath
+        {
+            get
+            {
+                return Path.Combine(UnityEngine.Application.dataPath,
+                "VRM/UniGLTF/Scripts/IO/GltfDeserializer.g.cs");
+            }
+        }
+
+        /// <summary>
+        /// AOT向けにデシリアライザを生成する
+        /// </summary>
+        [MenuItem(VRM.VRMVersion.MENU + "/Generate Deserializer")]
+        static void GenerateSerializer()
+        {
+            var info = new ObjectSerialization(typeof(glTF), "gltf");
+            Debug.Log(info);
+
+            using (var s = File.Open(OutPath, FileMode.Create))
+            using (var w = new StreamWriter(s, Encoding.UTF8))
+            {
+                // header
+                w.Write(@"
+using UniJSON;
+using System;
+using System.Collections.Generic;
+using VRM;
+using UnityEngine;
+
+namespace UniGLTF {
+
+public static class GltfDeserializer
+{
+
+");
+
+                info.GenerateDeserializer(w, "Deserialize");
+
+                // footer
+                w.Write(@"
+} // GltfDeserializer
+} // UniGLTF 
+");
+
+                Debug.LogFormat("write: {0}", OutPath);
+            }
+        }
+    }
+}