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- using IPA.Config.Data;
- using System;
-
- namespace IPA.Config.Stores.Converters
- {
- /// <summary>
- /// A <see cref="ValueConverter{T}"/> for objects normally serialized to config via <see cref="GeneratedExtension.Generated{T}(Config, bool)"/>.
- /// </summary>
- /// <typeparam name="T">the same type parameter that would be passed into <see cref="GeneratedExtension.Generated{T}(Config, bool)"/></typeparam>
- /// <seealso cref="GeneratedExtension.Generated{T}(Config, bool)"/>
- public class CustomObjectConverter<T> : ValueConverter<T> where T : class
- {
- private interface IImpl
- {
- T FromValue(Value value, object parent);
- Value ToValue(T obj, object parent);
- }
- private class Impl<U> : IImpl where U : class, GeneratedStore.IGeneratedStore<T>, T
- {
- private static readonly GeneratedStore.GeneratedStoreCreator creator = GeneratedStore.GetCreator(typeof(T));
- private static U Create(GeneratedStore.IGeneratedStore parent)
- => creator(parent) as U;
-
- public T FromValue(Value value, object parent)
- { // lots of casting here, but it works i promise (probably) (parent can be a non-IGeneratedStore, however it won't necessarily behave then)
- var obj = Create(parent as GeneratedStore.IGeneratedStore);
- obj.Deserialize(value);
- return obj;
- }
-
- public Value ToValue(T obj, object parent)
- {
- if (obj is GeneratedStore.IGeneratedStore store)
- return store.Serialize();
- else
- {
- var newObj = Create(null);
- newObj.CopyFrom(obj);
- return newObj.Serialize();
- }
- }
- }
-
- private static readonly IImpl impl = (IImpl)Activator.CreateInstance(
- typeof(Impl<>).MakeGenericType(GeneratedStore.GetGeneratedType(typeof(T))));
-
- /// <summary>
- /// Deserializes <paramref name="value"/> into a <typeparamref name="T"/> with the given <paramref name="parent"/>.
- /// </summary>
- /// <param name="value">the <see cref="Value"/> to deserialize</param>
- /// <param name="parent">the parent object that will own the deserialized value</param>
- /// <returns>the deserialized value</returns>
- /// <seealso cref="ValueConverter{T}.FromValue(Value, object)"/>
- public static T Deserialize(Value value, object parent)
- => impl.FromValue(value, parent);
-
- /// <summary>
- /// Serializes <paramref name="obj"/> into a <see cref="Value"/> structure, given <paramref name="parent"/>.
- /// </summary>
- /// <param name="obj">the object to serialize</param>
- /// <param name="parent">the parent object that owns <paramref name="obj"/></param>
- /// <returns>the <see cref="Value"/> tree that represents <paramref name="obj"/></returns>
- /// <seealso cref="ValueConverter{T}.ToValue(T, object)"/>
- public static Value Serialize(T obj, object parent)
- => impl.ToValue(obj, parent);
-
- /// <summary>
- /// Deserializes <paramref name="value"/> into a <typeparamref name="T"/> with the given <paramref name="parent"/>.
- /// </summary>
- /// <param name="value">the <see cref="Value"/> to deserialize</param>
- /// <param name="parent">the parent object that will own the deserialized value</param>
- /// <returns>the deserialized value</returns>
- /// <seealso cref="ValueConverter{T}.FromValue(Value, object)"/>
- public override T FromValue(Value value, object parent)
- => impl.FromValue(value, parent);
-
- /// <summary>
- /// Serializes <paramref name="obj"/> into a <see cref="Value"/> structure, given <paramref name="parent"/>.
- /// </summary>
- /// <param name="obj">the object to serialize</param>
- /// <param name="parent">the parent object that owns <paramref name="obj"/></param>
- /// <returns>the <see cref="Value"/> tree that represents <paramref name="obj"/></returns>
- /// <seealso cref="ValueConverter{T}.ToValue(T, object)"/>
- public override Value ToValue(T obj, object parent)
- => impl.ToValue(obj, parent);
- }
-
- }
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