125 lines
3.7 KiB
C#
125 lines
3.7 KiB
C#
using System.Collections;
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using System.Reflection;
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using Syntriax.Engine.Core.Factory;
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using YamlDotNet.Core;
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using YamlDotNet.Core.Events;
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using YamlDotNet.Serialization;
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namespace Syntriax.Engine.Serialization;
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public class InstanceConverter : IEngineTypeYamlConverter
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{
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private int depth = 0;
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private int maxDepth = 5;
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public bool Accepts(Type type) => !type.IsPrimitive && type != typeof(string);
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public object? ReadYaml(IParser parser, Type type, ObjectDeserializer rootDeserializer)
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{
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if (depth > maxDepth)
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return null;
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parser.Consume<MappingStart>();
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TypeContainer typeContainer = (TypeContainer)rootDeserializer(typeof(TypeContainer))!;
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object instance = TypeFactory.Get(typeContainer.Type);
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while (!parser.TryConsume<MappingEnd>(out _))
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{
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string key = parser.Consume<Scalar>().Value;
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if (type.GetField(key, BindingFlags.Instance | BindingFlags.NonPublic) is FieldInfo fieldInfo)
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{
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depth++;
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object? fieldValue = rootDeserializer(fieldInfo.FieldType);
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depth--;
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fieldInfo.SetValue(instance, fieldValue);
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}
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else if (type.GetProperty(key) is PropertyInfo propertyInfo)
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{
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depth++;
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object? propertyValue = rootDeserializer(propertyInfo.PropertyType);
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depth--;
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propertyInfo.SetValue(instance, propertyValue);
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}
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else
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parser.SkipThisAndNestedEvents();
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}
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parser.TryConsume<MappingEnd>(out _);
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return instance;
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}
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public void WriteYaml(IEmitter emitter, object? value, Type type, ObjectSerializer serializer)
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{
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emitter.Emit(new MappingStart());
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serializer(new TypeContainer(value), typeof(TypeContainer));
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TypeData typeData = Utils.GetTypeData(type);
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foreach (PropertyInfo propertyInfo in typeData.Properties)
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{
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if (propertyInfo.HasAttribute<IgnoreSerializationAttribute>())
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continue;
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emitter.Emit(new Scalar(propertyInfo.Name));
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object? propertyValue = propertyInfo.GetValue(value);
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depth++;
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if (depth <= maxDepth)
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EmitValue(propertyValue, propertyInfo.PropertyType, emitter, serializer);
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else
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emitter.Emit(new Scalar("Skipped"));
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depth--;
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}
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foreach (FieldInfo fieldInfo in typeData.Fields)
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{
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if (fieldInfo.HasAttribute<System.Runtime.CompilerServices.CompilerGeneratedAttribute>())
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continue;
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if (!fieldInfo.HasAttribute<SerializeAttribute>())
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continue;
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emitter.Emit(new Scalar(fieldInfo.Name));
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object? fieldValue = fieldInfo.GetValue(value);
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depth++;
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if (depth <= maxDepth)
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EmitValue(fieldValue, fieldInfo.FieldType, emitter, serializer);
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else
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emitter.Emit(new Scalar("Skipped"));
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depth--;
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}
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emitter.Emit(new MappingEnd());
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}
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private static void EmitValue(object? value, Type declaredType, IEmitter emitter, ObjectSerializer serializer)
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{
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if (value is null)
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{
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emitter.Emit(new Scalar(""));
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return;
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}
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bool isSequence = Utils.IsEnumerable(declaredType);
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if (!isSequence)
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{
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serializer(value);
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return;
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}
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IEnumerable sequence = (IEnumerable)value;
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emitter.Emit(new SequenceStart(null, null, false, SequenceStyle.Block));
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foreach (object? item in sequence)
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serializer(item);
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emitter.Emit(new SequenceEnd());
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}
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}
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