Browse Source

Refactored GeneratedStoreImpl out into several files

pull/44/head
Anairkoen Schno 4 years ago
parent
commit
70f4c54d55
10 changed files with 2027 additions and 1890 deletions
  1. +0
    -1889
      IPA.Loader/Config/Stores/GeneratedStoreImpl.cs
  2. +254
    -0
      IPA.Loader/Config/Stores/GeneratedStoreImpl/Deserialization.cs
  3. +102
    -0
      IPA.Loader/Config/Stores/GeneratedStoreImpl/GeneratedStoreImpl.cs
  4. +182
    -0
      IPA.Loader/Config/Stores/GeneratedStoreImpl/IGeneratedStore.cs
  5. +830
    -0
      IPA.Loader/Config/Stores/GeneratedStoreImpl/MakeCreator.cs
  6. +184
    -0
      IPA.Loader/Config/Stores/GeneratedStoreImpl/ObjectStructure.cs
  7. +155
    -0
      IPA.Loader/Config/Stores/GeneratedStoreImpl/Serialization.cs
  8. +206
    -0
      IPA.Loader/Config/Stores/GeneratedStoreImpl/Utility.cs
  9. +106
    -0
      IPA.Loader/Config/Stores/GeneratedStorePublicInterface.cs
  10. +8
    -1
      IPA.Loader/IPA.Loader.csproj

+ 0
- 1889
IPA.Loader/Config/Stores/GeneratedStoreImpl.cs
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+ 254
- 0
IPA.Loader/Config/Stores/GeneratedStoreImpl/Deserialization.cs View File

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using IPA.Config.Data;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Reflection.Emit;
using System.Text;
using System.Threading.Tasks;
using Boolean = IPA.Config.Data.Boolean;
namespace IPA.Config.Stores
{
internal static partial class GeneratedStoreImpl
{
private static Type GetExpectedValueTypeForType(Type valT)
{
if (typeof(Value).IsAssignableFrom(valT)) // this is a Value subtype
return valT;
if (valT == typeof(string)
|| valT == typeof(char)) return typeof(Text);
if (valT == typeof(bool)) return typeof(Boolean);
if (valT == typeof(byte)
|| valT == typeof(sbyte)
|| valT == typeof(short)
|| valT == typeof(ushort)
|| valT == typeof(int)
|| valT == typeof(uint)
|| valT == typeof(long)
|| valT == typeof(IntPtr)) return typeof(Integer);
if (valT == typeof(float)
|| valT == typeof(double)
|| valT == typeof(decimal)
|| valT == typeof(ulong) // ulong gets put into this, because decimal can hold it
|| valT == typeof(UIntPtr)) return typeof(FloatingPoint);
if (typeof(IEnumerable).IsAssignableFrom(valT)) return typeof(List);
// TODO: fill this out the rest of the way
return typeof(Map); // default for various objects
}
private static void EmitDeserializeGeneratedValue(ILGenerator il, SerializedMemberInfo member, Type srcType, GetLocal GetLocal)
{
var IGeneratedStore_Deserialize = typeof(IGeneratedStore).GetMethod(nameof(IGeneratedStore.Deserialize));
var valuel = GetLocal(srcType, 0);
var noCreate = il.DefineLabel();
il.Emit(OpCodes.Stloc, valuel);
EmitLoad(il, member, il => il.Emit(OpCodes.Ldarg_0));
il.Emit(OpCodes.Dup);
il.Emit(OpCodes.Isinst, typeof(IGeneratedStore));
il.Emit(OpCodes.Brtrue_S, noCreate);
il.Emit(OpCodes.Pop);
EmitCreateChildGenerated(il, member.Type);
il.MarkLabel(noCreate);
il.Emit(OpCodes.Dup);
il.Emit(OpCodes.Ldloc, valuel);
il.Emit(OpCodes.Callvirt, IGeneratedStore_Deserialize);
}
private static void EmitDeserializeNullable(ILGenerator il, SerializedMemberInfo member, Type expected, GetLocal GetLocal)
{
EmitDeserializeValue(il, member, member.NullableWrappedType, expected, GetLocal);
il.Emit(OpCodes.Newobj, member.Nullable_Construct);
}
// top of stack is the Value to deserialize; the type will be as returned from GetExpectedValueTypeForType
// after, top of stack will be thing to write to field
private static void EmitDeserializeValue(ILGenerator il, SerializedMemberInfo member, Type targetType, Type expected, GetLocal GetLocal)
{
if (typeof(Value).IsAssignableFrom(targetType)) return; // do nothing
if (expected == typeof(Text))
{
var getter = expected.GetProperty(nameof(Text.Value)).GetGetMethod();
il.Emit(OpCodes.Call, getter);
if (targetType == typeof(char))
{
var strIndex = typeof(string).GetProperty("Chars").GetGetMethod(); // string's indexer is specially named Chars
il.Emit(OpCodes.Ldc_I4_0);
il.Emit(OpCodes.Call, strIndex);
}
}
else if (expected == typeof(Boolean))
{
var getter = expected.GetProperty(nameof(Boolean.Value)).GetGetMethod();
il.Emit(OpCodes.Call, getter);
}
else if (expected == typeof(Integer))
{
var getter = expected.GetProperty(nameof(Integer.Value)).GetGetMethod();
il.Emit(OpCodes.Call, getter);
EmitNumberConvertTo(il, targetType, getter.ReturnType);
}
else if (expected == typeof(FloatingPoint))
{
var getter = expected.GetProperty(nameof(FloatingPoint.Value)).GetGetMethod();
il.Emit(OpCodes.Call, getter);
EmitNumberConvertTo(il, targetType, getter.ReturnType);
} // TODO: implement stuff for lists and maps of various types (probably call out somewhere else to figure out what to do)
else if (expected == typeof(Map))
{
EmitDeserializeGeneratedValue(il, member, expected, GetLocal);
}
else
{
il.Emit(OpCodes.Pop);
il.Emit(OpCodes.Ldnull);
}
}
private static void EmitDeserializeConverter(ILGenerator il, SerializedMemberInfo member, Label nextLabel, GetLocal GetLocal)
{
var stlocal = GetLocal(typeof(Value));
var valLocal = GetLocal(member.Type);
il.Emit(OpCodes.Stloc, stlocal);
il.BeginExceptionBlock();
il.Emit(OpCodes.Ldsfld, member.ConverterField);
il.Emit(OpCodes.Ldloc, stlocal);
il.Emit(OpCodes.Ldarg_0);
if (member.IsGenericConverter)
{
var fromValueBase = member.ConverterBase.GetMethod(nameof(ValueConverter<int>.FromValue),
new[] { typeof(Value), typeof(object) });
var fromValue = member.Converter.GetMethods(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance)
.FirstOrDefault(m => m.GetBaseDefinition() == fromValueBase) ?? fromValueBase;
il.Emit(OpCodes.Call, fromValue);
}
else
{
var fromValueBase = typeof(IValueConverter).GetMethod(nameof(IValueConverter.FromValue),
new[] { typeof(Value), typeof(object) });
var fromValue = member.Converter.GetMethods(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance)
.FirstOrDefault(m => m.GetBaseDefinition() == fromValueBase) ?? fromValueBase;
il.Emit(OpCodes.Call, fromValue);
if (member.Type.IsValueType)
il.Emit(OpCodes.Unbox);
}
il.Emit(OpCodes.Stloc, valLocal);
il.BeginCatchBlock(typeof(Exception));
EmitWarnException(il, "Error occurred while deserializing");
il.Emit(OpCodes.Leave, nextLabel);
il.EndExceptionBlock();
il.Emit(OpCodes.Ldloc, valLocal);
}
// emit takes the value being deserialized, logs on error, leaves nothing on stack
private static void EmitDeserializeMember(ILGenerator il, SerializedMemberInfo member, Label nextLabel, Action<ILGenerator> getValue, GetLocal GetLocal)
{
var Object_GetType = typeof(object).GetMethod(nameof(Object.GetType));
var implLabel = il.DefineLabel();
var passedTypeCheck = il.DefineLabel();
var expectType = GetExpectedValueTypeForType(member.IsNullable ? member.NullableWrappedType : member.Type);
il.Emit(OpCodes.Dup);
il.Emit(OpCodes.Brtrue_S, implLabel); // null check
if (!member.AllowNull)
{
il.Emit(OpCodes.Pop);
EmitLogError(il, $"Member {member.Name} ({member.Type}) not nullable", tailcall: false,
expected: il => EmitTypeof(il, expectType));
il.Emit(OpCodes.Br, nextLabel);
}
else if (member.IsNullable)
{
il.Emit(OpCodes.Pop);
var valTLocal = GetLocal(member.Type, 0);
il.Emit(OpCodes.Ldloca, valTLocal);
il.Emit(OpCodes.Initobj, member.Type);
EmitStore(il, member, il => il.Emit(OpCodes.Ldloc, valTLocal));
il.Emit(OpCodes.Br, nextLabel);
}
else
{
il.Emit(OpCodes.Pop);
EmitStore(il, member, il => il.Emit(OpCodes.Ldnull));
il.Emit(OpCodes.Br, nextLabel);
}
if (!member.HasConverter)
{
il.MarkLabel(implLabel);
il.Emit(OpCodes.Isinst, expectType); //replaces on stack
il.Emit(OpCodes.Dup); // duplicate cloned value
il.Emit(OpCodes.Brtrue, passedTypeCheck); // null check
}
var errorHandle = il.DefineLabel();
// special cases to handle coersion between Float and Int
if (member.HasConverter)
il.MarkLabel(implLabel);
else if (expectType == typeof(FloatingPoint))
{
var specialTypeCheck = il.DefineLabel();
il.Emit(OpCodes.Pop);
getValue(il);
il.Emit(OpCodes.Isinst, typeof(Integer)); //replaces on stack
il.Emit(OpCodes.Dup); // duplicate cloned value
il.Emit(OpCodes.Brfalse, errorHandle); // null check
var Integer_CoerceToFloat = typeof(Integer).GetMethod(nameof(Integer.AsFloat));
il.Emit(OpCodes.Call, Integer_CoerceToFloat);
il.Emit(OpCodes.Br, passedTypeCheck);
}
else if (expectType == typeof(Integer))
{
var specialTypeCheck = il.DefineLabel();
il.Emit(OpCodes.Pop);
getValue(il);
il.Emit(OpCodes.Isinst, typeof(FloatingPoint)); //replaces on stack
il.Emit(OpCodes.Dup); // duplicate cloned value
il.Emit(OpCodes.Brfalse, errorHandle); // null check
var Float_CoerceToInt = typeof(FloatingPoint).GetMethod(nameof(FloatingPoint.AsInteger));
il.Emit(OpCodes.Call, Float_CoerceToInt);
il.Emit(OpCodes.Br, passedTypeCheck);
}
if (!member.HasConverter)
{
il.MarkLabel(errorHandle);
il.Emit(OpCodes.Pop);
EmitLogError(il, $"Unexpected type deserializing {member.Name}", tailcall: false,
expected: il => EmitTypeof(il, expectType), found: il =>
{
getValue(il);
il.Emit(OpCodes.Callvirt, Object_GetType);
});
il.Emit(OpCodes.Br, nextLabel);
}
il.MarkLabel(passedTypeCheck);
var local = GetLocal(member.Type, 0);
if (member.HasConverter) EmitDeserializeConverter(il, member, nextLabel, GetLocal);
else if (member.IsNullable) EmitDeserializeNullable(il, member, expectType, GetLocal);
else EmitDeserializeValue(il, member, member.Type, expectType, GetLocal);
il.Emit(OpCodes.Stloc, local);
EmitStore(il, member, il => il.Emit(OpCodes.Ldloc, local));
}
}
}

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- 0
IPA.Loader/Config/Stores/GeneratedStoreImpl/GeneratedStoreImpl.cs View File

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using IPA.Config.Data;
using IPA.Config.Stores.Attributes;
using IPA.Logging;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Reflection.Emit;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Linq.Expressions;
using System.Runtime.CompilerServices;
using System.IO;
using Boolean = IPA.Config.Data.Boolean;
using System.Collections;
using IPA.Utilities;
using System.ComponentModel;
#if NET3
using Net3_Proxy;
using Array = Net3_Proxy.Array;
#endif
[assembly: InternalsVisibleTo(IPA.Config.Stores.GeneratedStore.AssemblyVisibilityTarget)]
namespace IPA.Config.Stores
{
internal static partial class GeneratedStoreImpl
{
private static readonly Dictionary<Type, (GeneratedStoreCreator ctor, Type type)> generatedCreators = new Dictionary<Type, (GeneratedStoreCreator ctor, Type type)>();
public static T Create<T>() where T : class => (T)Create(typeof(T));
public static IConfigStore Create(Type type) => Create(type, null);
private static readonly MethodInfo CreateGParent =
typeof(GeneratedStoreImpl).GetMethod(nameof(Create), BindingFlags.NonPublic | BindingFlags.Static, null,
CallingConventions.Any, new[] { typeof(IGeneratedStore) }, Array.Empty<ParameterModifier>());
internal static T Create<T>(IGeneratedStore parent) where T : class => (T)Create(typeof(T), parent);
private static IConfigStore Create(Type type, IGeneratedStore parent)
=> GetCreator(type)(parent);
internal static GeneratedStoreCreator GetCreator(Type t)
{
if (generatedCreators.TryGetValue(t, out var gen))
return gen.ctor;
else
{
gen = MakeCreator(t);
generatedCreators.Add(t, gen);
return gen.ctor;
}
}
internal static Type GetGeneratedType(Type t)
{
if (generatedCreators.TryGetValue(t, out var gen))
return gen.type;
else
{
gen = MakeCreator(t);
generatedCreators.Add(t, gen);
return gen.type;
}
}
internal const string GeneratedAssemblyName = "IPA.Config.Generated";
private static AssemblyBuilder assembly = null;
private static AssemblyBuilder Assembly
{
get
{
if (assembly == null)
{
var name = new AssemblyName(GeneratedAssemblyName);
assembly = AppDomain.CurrentDomain.DefineDynamicAssembly(name, AssemblyBuilderAccess.RunAndSave);
}
return assembly;
}
}
internal static void DebugSaveAssembly(string file)
{
Assembly.Save(file);
}
private static ModuleBuilder module = null;
private static ModuleBuilder Module
{
get
{
if (module == null)
module = Assembly.DefineDynamicModule(Assembly.GetName().Name, Assembly.GetName().Name + ".dll");
return module;
}
}
}
}

+ 182
- 0
IPA.Loader/Config/Stores/GeneratedStoreImpl/IGeneratedStore.cs View File

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using IPA.Logging;
using System;
using System.Collections.Generic;
using System.Reflection;
using System.Threading;
using System.Runtime.CompilerServices;
using System.ComponentModel;
using IPA.Config.Data;
#if NET3
using Net3_Proxy;
using Array = Net3_Proxy.Array;
#endif
[assembly: InternalsVisibleTo(IPA.Config.Stores.GeneratedStore.AssemblyVisibilityTarget)]
namespace IPA.Config.Stores
{
internal static partial class GeneratedStoreImpl
{
internal interface IGeneratedStore
{
Type Type { get; }
IGeneratedStore Parent { get; }
Impl Impl { get; }
void OnReload();
void Changed();
IDisposable ChangeTransaction();
Value Serialize();
void Deserialize(Value val);
}
internal interface IGeneratedStore<T> : IGeneratedStore where T : class
{
void CopyFrom(T source, bool useLock);
}
internal interface IGeneratedPropertyChanged : INotifyPropertyChanged
{
PropertyChangedEventHandler PropertyChangedEvent { get; }
}
internal class Impl : IConfigStore
{
private readonly IGeneratedStore generated;
private bool inChangeTransaction = false;
//private bool changedInTransaction = false;
internal static ConstructorInfo Ctor = typeof(Impl).GetConstructor(new[] { typeof(IGeneratedStore) });
public Impl(IGeneratedStore store) => generated = store;
private readonly AutoResetEvent resetEvent = new AutoResetEvent(false);
public WaitHandle SyncObject => resetEvent;
public static WaitHandle ImplGetSyncObject(IGeneratedStore s) => FindImpl(s).SyncObject;
internal static MethodInfo ImplGetSyncObjectMethod = typeof(Impl).GetMethod(nameof(ImplGetSyncObject));
public ReaderWriterLockSlim WriteSyncObject { get; } = new ReaderWriterLockSlim();
public static ReaderWriterLockSlim ImplGetWriteSyncObject(IGeneratedStore s) => FindImpl(s)?.WriteSyncObject;
internal static MethodInfo ImplGetWriteSyncObjectMethod = typeof(Impl).GetMethod(nameof(ImplGetWriteSyncObject));
internal static MethodInfo ImplSignalChangedMethod = typeof(Impl).GetMethod(nameof(ImplSignalChanged));
public static void ImplSignalChanged(IGeneratedStore s) => FindImpl(s).SignalChanged();
public void SignalChanged() => resetEvent.Set();
internal static MethodInfo ImplInvokeChangedMethod = typeof(Impl).GetMethod(nameof(ImplInvokeChanged));
public static void ImplInvokeChanged(IGeneratedStore s) => FindImpl(s).InvokeChanged();
public void InvokeChanged() => generated.Changed();
internal static MethodInfo ImplTakeReadMethod = typeof(Impl).GetMethod(nameof(ImplTakeRead));
public static void ImplTakeRead(IGeneratedStore s) => FindImpl(s).TakeRead();
public void TakeRead()
{
if (!WriteSyncObject.IsWriteLockHeld)
WriteSyncObject.EnterReadLock();
}
internal static MethodInfo ImplReleaseReadMethod = typeof(Impl).GetMethod(nameof(ImplReleaseRead));
public static void ImplReleaseRead(IGeneratedStore s) => FindImpl(s).ReleaseRead();
public void ReleaseRead()
{
if (!WriteSyncObject.IsWriteLockHeld)
WriteSyncObject.ExitReadLock();
}
internal static MethodInfo ImplTakeWriteMethod = typeof(Impl).GetMethod(nameof(ImplTakeWrite));
public static void ImplTakeWrite(IGeneratedStore s) => FindImpl(s).TakeWrite();
public void TakeWrite() => WriteSyncObject.EnterWriteLock();
internal static MethodInfo ImplReleaseWriteMethod = typeof(Impl).GetMethod(nameof(ImplReleaseWrite));
public static void ImplReleaseWrite(IGeneratedStore s) => FindImpl(s).ReleaseWrite();
public void ReleaseWrite() => WriteSyncObject.ExitWriteLock();
internal static MethodInfo ImplChangeTransactionMethod = typeof(Impl).GetMethod(nameof(ImplChangeTransaction));
public static IDisposable ImplChangeTransaction(IGeneratedStore s, IDisposable nest) => FindImpl(s).ChangeTransaction(nest);
// TODO: improve trasactionals so they don't always save in every case
public IDisposable ChangeTransaction(IDisposable nest, bool takeWrite = true)
=> GetFreeTransaction().InitWith(this, !inChangeTransaction, nest, takeWrite && !WriteSyncObject.IsWriteLockHeld);
private ChangeTransactionObj GetFreeTransaction()
=> freeTransactionObjs.Count > 0 ? freeTransactionObjs.Pop()
: new ChangeTransactionObj();
// TODO: maybe sometimes clean this?
private static readonly Stack<ChangeTransactionObj> freeTransactionObjs = new Stack<ChangeTransactionObj>();
private sealed class ChangeTransactionObj : IDisposable
{
private struct Data
{
public readonly Impl impl;
public readonly bool owns;
public readonly bool ownsWrite;
public readonly IDisposable nested;
public Data(Impl impl, bool owning, bool takeWrite, IDisposable nest)
{
this.impl = impl; owns = owning; ownsWrite = takeWrite; nested = nest;
}
}
private Data data;
public ChangeTransactionObj InitWith(Impl impl, bool owning, IDisposable nest, bool takeWrite)
{
data = new Data(impl, owning, takeWrite, nest);
if (data.owns)
impl.inChangeTransaction = true;
if (data.ownsWrite)
impl.TakeWrite();
return this;
}
public void Dispose() => Dispose(true);
private void Dispose(bool addToStore)
{
if (data.owns)
{
data.impl.inChangeTransaction = false;
data.impl.InvokeChanged();
}
data.nested?.Dispose();
if (data.ownsWrite)
data.impl.ReleaseWrite();
if (addToStore)
freeTransactionObjs.Push(this);
}
~ChangeTransactionObj() => Dispose(false);
}
public static Impl FindImpl(IGeneratedStore store)
{
while (store?.Parent != null) store = store.Parent; // walk to the top of the tree
return store?.Impl;
}
internal static MethodInfo ImplReadFromMethod = typeof(Impl).GetMethod(nameof(ImplReadFrom));
public static void ImplReadFrom(IGeneratedStore s, ConfigProvider provider) => FindImpl(s).ReadFrom(provider);
public void ReadFrom(ConfigProvider provider)
{
var values = provider.Load();
Logger.config.Debug("Generated impl ReadFrom");
Logger.config.Debug($"Read {values}");
generated.Deserialize(values);
using var transaction = generated.ChangeTransaction();
generated.OnReload();
}
internal static MethodInfo ImplWriteToMethod = typeof(Impl).GetMethod(nameof(ImplWriteTo));
public static void ImplWriteTo(IGeneratedStore s, ConfigProvider provider) => FindImpl(s).WriteTo(provider);
public void WriteTo(ConfigProvider provider)
{
var values = generated.Serialize();
Logger.config.Debug("Generated impl WriteTo");
Logger.config.Debug($"Serialized {values}");
provider.Store(values);
}
}
}
}

+ 830
- 0
IPA.Loader/Config/Stores/GeneratedStoreImpl/MakeCreator.cs View File

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using IPA.Config.Data;
using IPA.Config.Stores.Attributes;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Linq.Expressions;
using System.Reflection;
using System.Reflection.Emit;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
namespace IPA.Config.Stores
{
internal static partial class GeneratedStoreImpl
{
internal delegate IConfigStore GeneratedStoreCreator(IGeneratedStore parent);
private static (GeneratedStoreCreator ctor, Type type) MakeCreator(Type type)
{ // note that this does not and should not use converters by default for everything
if (!type.IsClass) throw new ArgumentException("Config type is not a class");
var baseCtor = type.GetConstructor(Type.EmptyTypes); // get a default constructor
if (baseCtor == null)
throw new ArgumentException("Config type does not have a public parameterless constructor");
#region Parse base object structure
const BindingFlags overrideMemberFlags = BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance;
var baseChanged = type.GetMethod("Changed", overrideMemberFlags, null, Type.EmptyTypes, Array.Empty<ParameterModifier>());
if (baseChanged != null && IsMethodInvalid(baseChanged, typeof(void))) baseChanged = null;
var baseOnReload = type.GetMethod("OnReload", overrideMemberFlags, null, Type.EmptyTypes, Array.Empty<ParameterModifier>());
if (baseOnReload != null && IsMethodInvalid(baseOnReload, typeof(void))) baseOnReload = null;
var baseCopyFrom = type.GetMethod("CopyFrom", overrideMemberFlags, null, new[] { type }, Array.Empty<ParameterModifier>());
if (baseCopyFrom != null && IsMethodInvalid(baseCopyFrom, typeof(void))) baseCopyFrom = null;
var baseChangeTransaction = type.GetMethod("ChangeTransaction", overrideMemberFlags, null, Type.EmptyTypes, Array.Empty<ParameterModifier>());
if (baseChangeTransaction != null && IsMethodInvalid(baseChangeTransaction, typeof(IDisposable))) baseChangeTransaction = null;
var isINotifyPropertyChanged = type.FindInterfaces((i, t) => i == (Type)t, typeof(INotifyPropertyChanged)).Length != 0;
var hasNotifyAttribute = type.GetCustomAttribute<NotifyPropertyChangesAttribute>() != null;
var structure = ReadObjectMembers(type, throwOnPrivateProperty: false, throwOnPrivateField: false);
#endregion
var typeBuilder = Module.DefineType($"{type.FullName}<Generated>",
TypeAttributes.Public | TypeAttributes.Sealed | TypeAttributes.Class, type);
var typeField = typeBuilder.DefineField("<>_type", typeof(Type), FieldAttributes.Private | FieldAttributes.InitOnly);
var implField = typeBuilder.DefineField("<>_impl", typeof(Impl), FieldAttributes.Private | FieldAttributes.InitOnly);
var parentField = typeBuilder.DefineField("<>_parent", typeof(IGeneratedStore), FieldAttributes.Private | FieldAttributes.InitOnly);
#region Converter fields
var uniqueConverterTypes = structure.Where(m => m.HasConverter).Select(m => m.Converter).Distinct().ToArray();
var converterFields = new Dictionary<Type, FieldInfo>(uniqueConverterTypes.Length);
foreach (var convType in uniqueConverterTypes)
{
var field = typeBuilder.DefineField($"<converter>_{convType}", convType,
FieldAttributes.Private | FieldAttributes.InitOnly | FieldAttributes.Static);
converterFields.Add(convType, field);
foreach (var member in structure.Where(m => m.HasConverter && m.Converter == convType))
member.ConverterField = field;
}
#endregion
#region Static constructor
var cctor = typeBuilder.DefineConstructor(MethodAttributes.Static, CallingConventions.Standard, Type.EmptyTypes);
{
var il = cctor.GetILGenerator();
foreach (var kvp in converterFields)
{
var typeCtor = kvp.Key.GetConstructor(Type.EmptyTypes);
il.Emit(OpCodes.Newobj, typeCtor);
il.Emit(OpCodes.Stsfld, kvp.Value);
}
il.Emit(OpCodes.Ret);
}
#endregion
#region Constructor
var ctor = typeBuilder.DefineConstructor(MethodAttributes.Public, CallingConventions.Standard, new[] { typeof(IGeneratedStore) });
{
var il = ctor.GetILGenerator();
il.Emit(OpCodes.Ldarg_0); // keep this at bottom of stack
il.Emit(OpCodes.Dup);
il.Emit(OpCodes.Call, baseCtor);
il.Emit(OpCodes.Dup);
il.Emit(OpCodes.Ldarg_1); // load parent
il.Emit(OpCodes.Stfld, parentField);
il.Emit(OpCodes.Dup);
EmitTypeof(il, type);
il.Emit(OpCodes.Stfld, typeField);
var noImplLabel = il.DefineLabel();
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Brtrue, noImplLabel);
il.Emit(OpCodes.Dup);
il.Emit(OpCodes.Dup);
il.Emit(OpCodes.Newobj, Impl.Ctor);
il.Emit(OpCodes.Stfld, implField);
il.MarkLabel(noImplLabel);
var GetLocal = MakeGetLocal(il);
foreach (var member in structure)
{
EmitStore(il, member, il =>
{
EmitLoad(il, member); // load the member
EmitCorrectMember(il, member, false, true, GetLocal); // correct it
});
}
il.Emit(OpCodes.Pop);
il.Emit(OpCodes.Ret);
}
#endregion
const MethodAttributes propertyMethodAttr = MethodAttributes.Public | MethodAttributes.SpecialName | MethodAttributes.HideBySig;
const MethodAttributes virtualPropertyMethodAttr = propertyMethodAttr | MethodAttributes.Virtual | MethodAttributes.Final;
const MethodAttributes virtualMemberMethod = MethodAttributes.Public | MethodAttributes.Virtual | MethodAttributes.HideBySig | MethodAttributes.Final;
#region INotifyPropertyChanged
MethodBuilder notifyChanged = null;
if (isINotifyPropertyChanged || hasNotifyAttribute)
{
var INotifyPropertyChanged_t = typeof(INotifyPropertyChanged);
typeBuilder.AddInterfaceImplementation(INotifyPropertyChanged_t);
var INotifyPropertyChanged_PropertyChanged =
INotifyPropertyChanged_t.GetEvent(nameof(INotifyPropertyChanged.PropertyChanged));
var PropertyChangedEventHandler_t = typeof(PropertyChangedEventHandler);
var PropertyChangedEventHander_Invoke = PropertyChangedEventHandler_t.GetMethod(nameof(PropertyChangedEventHandler.Invoke));
var PropertyChangedEventArgs_t = typeof(PropertyChangedEventArgs);
var PropertyChangedEventArgs_ctor = PropertyChangedEventArgs_t.GetConstructor(new[] { typeof(string) });
var Delegate_t = typeof(Delegate);
var Delegate_Combine = Delegate_t.GetMethod(nameof(Delegate.Combine), BindingFlags.Static | BindingFlags.Public, null,
new[] { Delegate_t, Delegate_t }, Array.Empty<ParameterModifier>());
var Delegate_Remove = Delegate_t.GetMethod(nameof(Delegate.Remove), BindingFlags.Static | BindingFlags.Public, null,
new[] { Delegate_t, Delegate_t }, Array.Empty<ParameterModifier>());
var CompareExchange = typeof(Interlocked).GetMethods()
.Where(m => m.Name == nameof(Interlocked.CompareExchange))
.Where(m => m.ContainsGenericParameters)
.Where(m => m.GetParameters().Length == 3).First()
.MakeGenericMethod(PropertyChangedEventHandler_t);
var basePropChangedEvent = type.GetEvents()
.Where(e => e.GetAddMethod().GetBaseDefinition().DeclaringType == INotifyPropertyChanged_t)
.FirstOrDefault();
var basePropChangedAdd = basePropChangedEvent?.GetAddMethod();
var basePropChangedRemove = basePropChangedEvent?.GetRemoveMethod();
var PropertyChanged_backing = typeBuilder.DefineField("<event>PropertyChanged", PropertyChangedEventHandler_t, FieldAttributes.Private);
var add_PropertyChanged = typeBuilder.DefineMethod("<add>PropertyChanged",
MethodAttributes.Public | MethodAttributes.HideBySig | MethodAttributes.Final | MethodAttributes.Virtual,
null, new[] { PropertyChangedEventHandler_t });
typeBuilder.DefineMethodOverride(add_PropertyChanged, INotifyPropertyChanged_PropertyChanged.GetAddMethod());
if (basePropChangedAdd != null)
typeBuilder.DefineMethodOverride(add_PropertyChanged, basePropChangedAdd);
{
var il = add_PropertyChanged.GetILGenerator();
var loopLabel = il.DefineLabel();
var delTemp = il.DeclareLocal(PropertyChangedEventHandler_t);
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Ldfld, PropertyChanged_backing);
il.MarkLabel(loopLabel);
il.Emit(OpCodes.Stloc, delTemp);
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Ldflda, PropertyChanged_backing);
il.Emit(OpCodes.Ldloc, delTemp);
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Call, Delegate_Combine);
il.Emit(OpCodes.Castclass, PropertyChangedEventHandler_t);
il.Emit(OpCodes.Ldloc, delTemp);
il.Emit(OpCodes.Call, CompareExchange);
il.Emit(OpCodes.Dup);
il.Emit(OpCodes.Ldloc, delTemp);
il.Emit(OpCodes.Bne_Un_S, loopLabel);
il.Emit(OpCodes.Ret);
}
var remove_PropertyChanged = typeBuilder.DefineMethod("<remove>PropertyChanged",
MethodAttributes.Public | MethodAttributes.HideBySig | MethodAttributes.Final | MethodAttributes.Virtual,
null, new[] { PropertyChangedEventHandler_t });
typeBuilder.DefineMethodOverride(remove_PropertyChanged, INotifyPropertyChanged_PropertyChanged.GetRemoveMethod());
if (basePropChangedRemove != null)
typeBuilder.DefineMethodOverride(remove_PropertyChanged, basePropChangedRemove);
{
var il = remove_PropertyChanged.GetILGenerator();
var loopLabel = il.DefineLabel();
var delTemp = il.DeclareLocal(PropertyChangedEventHandler_t);
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Ldfld, PropertyChanged_backing);
il.MarkLabel(loopLabel);
il.Emit(OpCodes.Stloc, delTemp);
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Ldflda, PropertyChanged_backing);
il.Emit(OpCodes.Ldloc, delTemp);
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Call, Delegate_Remove);
il.Emit(OpCodes.Castclass, PropertyChangedEventHandler_t);
il.Emit(OpCodes.Ldloc, delTemp);
il.Emit(OpCodes.Call, CompareExchange);
il.Emit(OpCodes.Dup);
il.Emit(OpCodes.Ldloc, delTemp);
il.Emit(OpCodes.Bne_Un_S, loopLabel);
il.Emit(OpCodes.Ret);
}
var PropertyChanged_event = typeBuilder.DefineEvent(nameof(INotifyPropertyChanged.PropertyChanged), EventAttributes.None, PropertyChangedEventHandler_t);
PropertyChanged_event.SetAddOnMethod(add_PropertyChanged);
PropertyChanged_event.SetRemoveOnMethod(remove_PropertyChanged);
notifyChanged = typeBuilder.DefineMethod("<>NotifyChanged",
MethodAttributes.Public | MethodAttributes.HideBySig | MethodAttributes.Final, null, new[] { typeof(string) });
{
var il = notifyChanged.GetILGenerator();
var invokeNonNull = il.DefineLabel();
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Ldfld, PropertyChanged_backing);
il.Emit(OpCodes.Dup);
il.Emit(OpCodes.Brtrue, invokeNonNull);
il.Emit(OpCodes.Pop);
il.Emit(OpCodes.Ret);
il.MarkLabel(invokeNonNull);
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Newobj, PropertyChangedEventArgs_ctor);
il.Emit(OpCodes.Call, PropertyChangedEventHander_Invoke);
il.Emit(OpCodes.Ret);
}
}
#endregion
#region IGeneratedStore
typeBuilder.AddInterfaceImplementation(typeof(IGeneratedStore));
var IGeneratedStore_t = typeof(IGeneratedStore);
var IGeneratedStore_GetImpl = IGeneratedStore_t.GetProperty(nameof(IGeneratedStore.Impl)).GetGetMethod();
var IGeneratedStore_GetType = IGeneratedStore_t.GetProperty(nameof(IGeneratedStore.Type)).GetGetMethod();
var IGeneratedStore_GetParent = IGeneratedStore_t.GetProperty(nameof(IGeneratedStore.Parent)).GetGetMethod();
var IGeneratedStore_Serialize = IGeneratedStore_t.GetMethod(nameof(IGeneratedStore.Serialize));
var IGeneratedStore_Deserialize = IGeneratedStore_t.GetMethod(nameof(IGeneratedStore.Deserialize));
var IGeneratedStore_OnReload = IGeneratedStore_t.GetMethod(nameof(IGeneratedStore.OnReload));
var IGeneratedStore_Changed = IGeneratedStore_t.GetMethod(nameof(IGeneratedStore.Changed));
var IGeneratedStore_ChangeTransaction = IGeneratedStore_t.GetMethod(nameof(IGeneratedStore.ChangeTransaction));
#region IGeneratedStore.OnReload
var onReload = typeBuilder.DefineMethod($"<>{nameof(IGeneratedStore.OnReload)}", virtualMemberMethod, null, Type.EmptyTypes);
typeBuilder.DefineMethodOverride(onReload, IGeneratedStore_OnReload);
if (baseOnReload != null) typeBuilder.DefineMethodOverride(onReload, baseOnReload);
{
var il = onReload.GetILGenerator();
if (baseOnReload != null)
{
il.Emit(OpCodes.Ldarg_0); // load this
il.Emit(OpCodes.Tailcall);
il.Emit(OpCodes.Call, baseOnReload); // load impl field
}
il.Emit(OpCodes.Ret);
}
#endregion
#region IGeneratedStore.Impl
var implProp = typeBuilder.DefineProperty(nameof(IGeneratedStore.Impl), PropertyAttributes.None, typeof(Impl), null);
var implPropGet = typeBuilder.DefineMethod($"<g>{nameof(IGeneratedStore.Impl)}", virtualPropertyMethodAttr, implProp.PropertyType, Type.EmptyTypes);
implProp.SetGetMethod(implPropGet);
typeBuilder.DefineMethodOverride(implPropGet, IGeneratedStore_GetImpl);
{
var il = implPropGet.GetILGenerator();
il.Emit(OpCodes.Ldarg_0); // load this
il.Emit(OpCodes.Ldfld, implField); // load impl field
il.Emit(OpCodes.Ret);
}
#endregion
#region IGeneratedStore.Type
var typeProp = typeBuilder.DefineProperty(nameof(IGeneratedStore.Type), PropertyAttributes.None, typeof(Type), null);
var typePropGet = typeBuilder.DefineMethod($"<g>{nameof(IGeneratedStore.Type)}", virtualPropertyMethodAttr, typeProp.PropertyType, Type.EmptyTypes);
typeProp.SetGetMethod(typePropGet);
typeBuilder.DefineMethodOverride(typePropGet, IGeneratedStore_GetType);
{
var il = typePropGet.GetILGenerator();
il.Emit(OpCodes.Ldarg_0); // load this
il.Emit(OpCodes.Ldfld, typeField); // load impl field
il.Emit(OpCodes.Ret);
}
#endregion
#region IGeneratedStore.Parent
var parentProp = typeBuilder.DefineProperty(nameof(IGeneratedStore.Parent), PropertyAttributes.None, typeof(IGeneratedStore), null);
var parentPropGet = typeBuilder.DefineMethod($"<g>{nameof(IGeneratedStore.Parent)}", virtualPropertyMethodAttr, parentProp.PropertyType, Type.EmptyTypes);
parentProp.SetGetMethod(parentPropGet);
typeBuilder.DefineMethodOverride(parentPropGet, IGeneratedStore_GetParent);
{
var il = parentPropGet.GetILGenerator();
il.Emit(OpCodes.Ldarg_0); // load this
il.Emit(OpCodes.Ldfld, parentField); // load impl field
il.Emit(OpCodes.Ret);
}
#endregion
#region IGeneratedStore.Serialize
var serializeGen = typeBuilder.DefineMethod($"<>{nameof(IGeneratedStore.Serialize)}", virtualPropertyMethodAttr, IGeneratedStore_Serialize.ReturnType, Type.EmptyTypes);
typeBuilder.DefineMethodOverride(serializeGen, IGeneratedStore_Serialize);
{ // this is non-locking because the only code that will call this will already own the correct lock
var il = serializeGen.GetILGenerator();
var Map_Add = typeof(Map).GetMethod(nameof(Map.Add));
var mapLocal = il.DeclareLocal(typeof(Map));
var GetLocal = MakeGetLocal(il);
var valLocal = GetLocal(typeof(Value));
il.Emit(OpCodes.Call, typeof(Value).GetMethod(nameof(Value.Map)));
il.Emit(OpCodes.Stloc, mapLocal);
foreach (var member in structure)
{
EmitSerializeMember(il, member, GetLocal);
il.Emit(OpCodes.Stloc, valLocal);
il.Emit(OpCodes.Ldloc, mapLocal);
il.Emit(OpCodes.Ldstr, member.Name);
il.Emit(OpCodes.Ldloc, valLocal);
il.Emit(OpCodes.Call, Map_Add);
}
il.Emit(OpCodes.Ldloc, mapLocal);
il.Emit(OpCodes.Ret);
}
#endregion
#region IGeneratedStore.Deserialize
var deserializeGen = typeBuilder.DefineMethod($"<>{nameof(IGeneratedStore.Deserialize)}", virtualPropertyMethodAttr, null,
new[] { IGeneratedStore_Deserialize.GetParameters()[0].ParameterType });
typeBuilder.DefineMethodOverride(deserializeGen, IGeneratedStore_Deserialize);
{ // this is non-locking because the only code that will call this will already own the correct lock
var il = deserializeGen.GetILGenerator();
var Map_t = typeof(Map);
var Map_TryGetValue = Map_t.GetMethod(nameof(Map.TryGetValue));
var Object_GetType = typeof(object).GetMethod(nameof(Object.GetType));
var valueLocal = il.DeclareLocal(typeof(Value));
var mapLocal = il.DeclareLocal(typeof(Map));
var nonNull = il.DefineLabel();
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Brtrue, nonNull);
EmitLogError(il, "Attempting to deserialize null", tailcall: true);
il.Emit(OpCodes.Ret);
il.MarkLabel(nonNull);
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Isinst, Map_t);
il.Emit(OpCodes.Dup); // duplicate cloned value
il.Emit(OpCodes.Stloc, mapLocal);
var notMapError = il.DefineLabel();
il.Emit(OpCodes.Brtrue, notMapError);
// handle error
EmitLogError(il, $"Invalid root for deserializing {type.FullName}", tailcall: true,
expected: il => EmitTypeof(il, Map_t), found: il =>
{
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Callvirt, Object_GetType);
});
il.Emit(OpCodes.Ret);
var nextLabel = notMapError;
var GetLocal = MakeGetLocal(il);
// head of stack is Map instance
foreach (var member in structure)
{
il.MarkLabel(nextLabel);
nextLabel = il.DefineLabel();
var endErrorLabel = il.DefineLabel();
il.Emit(OpCodes.Ldloc, mapLocal);
il.Emit(OpCodes.Ldstr, member.Name);
il.Emit(OpCodes.Ldloca_S, valueLocal);
il.Emit(OpCodes.Call, Map_TryGetValue);
il.Emit(OpCodes.Brtrue_S, endErrorLabel);
EmitLogError(il, $"Missing key {member.Name}", tailcall: false);
il.Emit(OpCodes.Br, nextLabel);
il.MarkLabel(endErrorLabel);
il.Emit(OpCodes.Ldloc_S, valueLocal);
EmitDeserializeMember(il, member, nextLabel, il => il.Emit(OpCodes.Ldloc_S, valueLocal), GetLocal);
}
il.MarkLabel(nextLabel);
if (notifyChanged != null)
{
foreach (var member in structure)
{
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Ldstr, member.Name);
il.Emit(OpCodes.Call, notifyChanged);
}
}
il.Emit(OpCodes.Ret);
}
#endregion
#endregion
#region IConfigStore
typeBuilder.AddInterfaceImplementation(typeof(IConfigStore));
var IConfigStore_t = typeof(IConfigStore);
var IConfigStore_GetSyncObject = IConfigStore_t.GetProperty(nameof(IConfigStore.SyncObject)).GetGetMethod();
var IConfigStore_GetWriteSyncObject = IConfigStore_t.GetProperty(nameof(IConfigStore.WriteSyncObject)).GetGetMethod();
var IConfigStore_WriteTo = IConfigStore_t.GetMethod(nameof(IConfigStore.WriteTo));
var IConfigStore_ReadFrom = IConfigStore_t.GetMethod(nameof(IConfigStore.ReadFrom));
#region IConfigStore.SyncObject
var syncObjProp = typeBuilder.DefineProperty(nameof(IConfigStore.SyncObject), PropertyAttributes.None, typeof(WaitHandle), null);
var syncObjPropGet = typeBuilder.DefineMethod($"<g>{nameof(IConfigStore.SyncObject)}", virtualPropertyMethodAttr, syncObjProp.PropertyType, Type.EmptyTypes);
syncObjProp.SetGetMethod(syncObjPropGet);
typeBuilder.DefineMethodOverride(syncObjPropGet, IConfigStore_GetSyncObject);
{
var il = syncObjPropGet.GetILGenerator();
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Tailcall);
il.Emit(OpCodes.Call, Impl.ImplGetSyncObjectMethod);
il.Emit(OpCodes.Ret);
}
#endregion
#region IConfigStore.WriteSyncObject
var writeSyncObjProp = typeBuilder.DefineProperty(nameof(IConfigStore.WriteSyncObject), PropertyAttributes.None, typeof(WaitHandle), null);
var writeSyncObjPropGet = typeBuilder.DefineMethod($"<g>{nameof(IConfigStore.WriteSyncObject)}", virtualPropertyMethodAttr, writeSyncObjProp.PropertyType, Type.EmptyTypes);
writeSyncObjProp.SetGetMethod(writeSyncObjPropGet);
typeBuilder.DefineMethodOverride(writeSyncObjPropGet, IConfigStore_GetWriteSyncObject);
{
var il = writeSyncObjPropGet.GetILGenerator();
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Tailcall);
il.Emit(OpCodes.Call, Impl.ImplGetWriteSyncObjectMethod);
il.Emit(OpCodes.Ret);
}
#endregion
#region IConfigStore.WriteTo
var writeTo = typeBuilder.DefineMethod($"<>{nameof(IConfigStore.WriteTo)}", virtualMemberMethod, null, new[] { typeof(ConfigProvider) });
typeBuilder.DefineMethodOverride(writeTo, IConfigStore_WriteTo);
{
var il = writeTo.GetILGenerator();
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Tailcall);
il.Emit(OpCodes.Call, Impl.ImplWriteToMethod);
il.Emit(OpCodes.Ret);
}
#endregion
#region IConfigStore.ReadFrom
var readFrom = typeBuilder.DefineMethod($"<>{nameof(IConfigStore.ReadFrom)}", virtualMemberMethod, null, new[] { typeof(ConfigProvider) });
typeBuilder.DefineMethodOverride(readFrom, IConfigStore_ReadFrom);
{
var il = readFrom.GetILGenerator();
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Tailcall);
il.Emit(OpCodes.Call, Impl.ImplReadFromMethod);
il.Emit(OpCodes.Ret);
}
#endregion
#endregion
#region Changed
var coreChanged = typeBuilder.DefineMethod(
"<>Changed",
virtualMemberMethod,
null, Type.EmptyTypes);
typeBuilder.DefineMethodOverride(coreChanged, IGeneratedStore_Changed);
if (baseChanged != null)
typeBuilder.DefineMethodOverride(coreChanged, baseChanged);
{
var il = coreChanged.GetILGenerator();
if (baseChanged != null)
{
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Call, baseChanged); // call base
}
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Tailcall);
il.Emit(OpCodes.Call, Impl.ImplSignalChangedMethod);
il.Emit(OpCodes.Ret); // simply call our impl's SignalChanged method and return
}
#endregion
#region ChangeTransaction
var coreChangeTransaction = typeBuilder.DefineMethod(
"<>ChangeTransaction",
virtualMemberMethod,
typeof(IDisposable), Type.EmptyTypes);
typeBuilder.DefineMethodOverride(coreChangeTransaction, IGeneratedStore_ChangeTransaction);
if (baseChangeTransaction != null)
typeBuilder.DefineMethodOverride(coreChangeTransaction, baseChangeTransaction);
{
var il = coreChangeTransaction.GetILGenerator();
il.Emit(OpCodes.Ldarg_0);
if (baseChangeTransaction != null)
{
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Call, baseChangeTransaction);
}
else
il.Emit(OpCodes.Ldnull);
il.Emit(OpCodes.Tailcall);
il.Emit(OpCodes.Call, Impl.ImplChangeTransactionMethod);
il.Emit(OpCodes.Ret);
}
#endregion
#region IGeneratedStore<T>
var IGeneratedStore_T_t = typeof(IGeneratedStore<>).MakeGenericType(type);
typeBuilder.AddInterfaceImplementation(IGeneratedStore_T_t);
var IGeneratedStore_T_CopyFrom = IGeneratedStore_T_t.GetMethod(nameof(IGeneratedStore<Config>.CopyFrom));
#region IGeneratedStore<T>.CopyFrom
var copyFrom = typeBuilder.DefineMethod($"<>{nameof(IGeneratedStore<Config>.CopyFrom)}", virtualMemberMethod, null, new[] { type, typeof(bool) });
typeBuilder.DefineMethodOverride(copyFrom, IGeneratedStore_T_CopyFrom);
{
var il = copyFrom.GetILGenerator();
var transactionLocal = il.DeclareLocal(IDisposable_t);
var startLock = il.DefineLabel();
il.Emit(OpCodes.Ldarg_2);
il.Emit(OpCodes.Brfalse, startLock);
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Call, coreChangeTransaction); // take the write lock
il.Emit(OpCodes.Stloc, transactionLocal);
il.MarkLabel(startLock);
var GetLocal = MakeGetLocal(il);
foreach (var member in structure)
{
il.BeginExceptionBlock();
EmitStore(il, member, il =>
{
EmitLoad(il, member, il => il.Emit(OpCodes.Ldarg_1));
EmitCorrectMember(il, member, false, false, GetLocal);
});
il.BeginCatchBlock(typeof(Exception));
EmitWarnException(il, $"Error while copying from member {member.Name}");
il.EndExceptionBlock();
}
if (notifyChanged != null)
{
foreach (var member in structure)
{
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Ldstr, member.Name);
il.Emit(OpCodes.Call, notifyChanged);
}
}
var endLock = il.DefineLabel();
il.Emit(OpCodes.Ldarg_2);
il.Emit(OpCodes.Brfalse, endLock);
il.Emit(OpCodes.Ldloc, transactionLocal);
il.Emit(OpCodes.Callvirt, IDisposable_Dispose);
il.MarkLabel(endLock);
il.Emit(OpCodes.Ret);
}
#endregion
#endregion
#region base.CopyFrom
if (baseCopyFrom != null)
{
var pubCopyFrom = typeBuilder.DefineMethod(
baseCopyFrom.Name,
virtualMemberMethod,
null, new[] { type });
typeBuilder.DefineMethodOverride(pubCopyFrom, baseCopyFrom);
{
var il = pubCopyFrom.GetILGenerator();
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Call, coreChangeTransaction);
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Ldc_I4_0);
il.Emit(OpCodes.Call, copyFrom); // call internal
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Call, baseCopyFrom); // call base
il.Emit(OpCodes.Tailcall);
il.Emit(OpCodes.Callvirt, IDisposable_Dispose); // dispose transaction (which calls changed)
il.Emit(OpCodes.Ret);
}
}
#endregion
#region Members
foreach (var member in structure.Where(m => m.IsVirtual))
{ // IsVirtual implies !IsField
var prop = member.Member as PropertyInfo;
var get = prop.GetGetMethod(true);
var set = prop.GetSetMethod(true);
var propBuilder = typeBuilder.DefineProperty($"{member.Name}#", PropertyAttributes.None, member.Type, null);
var propGet = typeBuilder.DefineMethod($"<g>{propBuilder.Name}", virtualPropertyMethodAttr, member.Type, Type.EmptyTypes);
propBuilder.SetGetMethod(propGet);
typeBuilder.DefineMethodOverride(propGet, get);
{
var il = propGet.GetILGenerator();
var local = il.DeclareLocal(member.Type);
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Call, Impl.ImplTakeReadMethod); // take the read lock
il.BeginExceptionBlock();
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Call, get); // call base getter
il.Emit(OpCodes.Stloc, local);
il.BeginFinallyBlock();
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Call, Impl.ImplReleaseReadMethod); // release the read lock
il.EndExceptionBlock();
il.Emit(OpCodes.Ldloc, local);
il.Emit(OpCodes.Ret);
}
var propSet = typeBuilder.DefineMethod($"<s>{propBuilder.Name}", virtualPropertyMethodAttr, null, new[] { member.Type });
propBuilder.SetSetMethod(propSet);
typeBuilder.DefineMethodOverride(propSet, set);
{ // TODO: decide if i want to correct the value before or after i take the write lock
var il = propSet.GetILGenerator();
var transactionLocal = il.DeclareLocal(IDisposable_t);
var GetLocal = MakeGetLocal(il);
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Call, coreChangeTransaction); // take the write lock
il.Emit(OpCodes.Stloc, transactionLocal);
il.BeginExceptionBlock();
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Ldarg_1);
EmitCorrectMember(il, member, false, false, GetLocal);
il.Emit(OpCodes.Call, set);
il.BeginFinallyBlock();
il.Emit(OpCodes.Ldloc, transactionLocal);
il.Emit(OpCodes.Callvirt, IDisposable_Dispose);
il.EndExceptionBlock();
if (notifyChanged != null)
{
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Ldstr, member.Name);
il.Emit(OpCodes.Call, notifyChanged);
}
il.Emit(OpCodes.Ret);
}
}
#endregion
var genType = typeBuilder.CreateType();
var parentParam = Expression.Parameter(typeof(IGeneratedStore), "parent");
var creatorDel = Expression.Lambda<GeneratedStoreCreator>(
Expression.New(ctor, parentParam), parentParam
).Compile();
return (creatorDel, genType);
}
#region Correction
private static bool NeedsCorrection(SerializedMemberInfo member)
{
if (member.HasConverter) return false;
var memberType = member.ConversionType;
var expectType = GetExpectedValueTypeForType(memberType);
// if we expect a map, and the type is *not* a value type, it can be converted
if (expectType == typeof(Map) && !memberType.IsValueType) // TODO: make this slightly saner
return true;
return false;
}
// expects start value on stack, exits with final value on stack
private static void EmitCorrectMember(ILGenerator il, SerializedMemberInfo member, bool shouldLock, bool alwaysNew, GetLocal GetLocal)
{
if (!NeedsCorrection(member)) return;
// this will never be called for a custom value type
var endLabel = il.DefineLabel();
if (member.IsNullable)
{
il.Emit(OpCodes.Dup);
il.Emit(OpCodes.Call, member.Nullable_HasValue.GetGetMethod());
il.Emit(OpCodes.Brfalse, endLabel);
il.Emit(OpCodes.Call, member.Nullable_Value.GetGetMethod());
}
// TODO: impl the rest of this
// currently the only thing for this is where expect == Map, so do generate shit
var copyFrom = typeof(IGeneratedStore<>).MakeGenericType(member.Type).GetMethod(nameof(IGeneratedStore<Config>.CopyFrom));
var noCreate = il.DefineLabel();
var valLocal = GetLocal(member.Type);
if (!alwaysNew)
{
il.Emit(OpCodes.Dup);
il.Emit(OpCodes.Isinst, typeof(IGeneratedStore));
il.Emit(OpCodes.Brtrue_S, endLabel); // our input is already something we like
}
il.Emit(OpCodes.Stloc, valLocal);
if (!alwaysNew)
{
EmitLoad(il, member, il => il.Emit(OpCodes.Ldarg_0));
il.Emit(OpCodes.Dup);
il.Emit(OpCodes.Isinst, typeof(IGeneratedStore));
il.Emit(OpCodes.Brtrue_S, noCreate);
il.Emit(OpCodes.Pop);
}
EmitCreateChildGenerated(il, member.Type);
il.MarkLabel(noCreate);
il.Emit(OpCodes.Dup);
il.Emit(OpCodes.Ldloc, valLocal);
il.Emit(shouldLock ? OpCodes.Ldc_I4_1 : OpCodes.Ldc_I4_0);
il.Emit(OpCodes.Callvirt, copyFrom);
// TODO: impl the rest of this
if (member.IsNullable)
il.Emit(OpCodes.Newobj, member.Nullable_Construct);
il.MarkLabel(endLabel);
}
#endregion
}
}

+ 184
- 0
IPA.Loader/Config/Stores/GeneratedStoreImpl/ObjectStructure.cs View File

@ -0,0 +1,184 @@
using IPA.Config.Stores.Attributes;
using IPA.Logging;
using IPA.Utilities;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
namespace IPA.Config.Stores
{
internal static partial class GeneratedStoreImpl
{
private class SerializedMemberInfo
{
public string Name;
public MemberInfo Member;
public Type Type;
public bool AllowNull;
public bool IsVirtual;
public bool IsField;
public bool IsNullable; // signifies whether this is a Nullable<T>
public bool HasConverter;
public bool IsGenericConverter; // used so we can call directly to the generic version if it is
public Type Converter;
public Type ConverterBase;
public Type ConverterTarget;
public FieldInfo ConverterField;
// invalid for objects with IsNullabe false
public Type NullableWrappedType => Nullable.GetUnderlyingType(Type);
// invalid for objects with IsNullabe false
public PropertyInfo Nullable_HasValue => Type.GetProperty(nameof(Nullable<int>.HasValue));
// invalid for objects with IsNullabe false
public PropertyInfo Nullable_Value => Type.GetProperty(nameof(Nullable<int>.Value));
// invalid for objects with IsNullabe false
public ConstructorInfo Nullable_Construct => Type.GetConstructor(new[] { NullableWrappedType });
public Type ConversionType => IsNullable ? NullableWrappedType : Type;
}
private static bool IsMethodInvalid(MethodInfo m, Type ret) => !m.IsVirtual || m.ReturnType != ret;
private static bool ProcessAttributesFor(Type type, ref SerializedMemberInfo member)
{
var attrs = member.Member.GetCustomAttributes(true);
var ignores = attrs.Select(o => o as IgnoreAttribute).NonNull();
if (ignores.Any() || typeof(Delegate).IsAssignableFrom(member.Type))
{ // we ignore delegates completely because there is no a good way to serialize them
return false;
}
var nonNullables = attrs.Select(o => o as NonNullableAttribute).NonNull();
member.Name = member.Member.Name;
member.IsNullable = member.Type.IsGenericType
&& member.Type.GetGenericTypeDefinition() == typeof(Nullable<>);
member.AllowNull = !nonNullables.Any() && (!member.Type.IsValueType || member.IsNullable);
var nameAttr = attrs.Select(o => o as SerializedNameAttribute).NonNull().FirstOrDefault();
if (nameAttr != null)
member.Name = nameAttr.Name;
member.HasConverter = false;
var converterAttr = attrs.Select(o => o as UseConverterAttribute).NonNull().FirstOrDefault();
if (converterAttr != null)
{
member.Converter = converterAttr.ConverterType;
member.IsGenericConverter = converterAttr.IsGenericConverter;
if (member.Converter.GetConstructor(Type.EmptyTypes) == null)
{
Logger.config.Warn($"{type.FullName}'s member {member.Member.Name} requests a converter that is not default-constructible");
goto endConverterAttr; // is there a better control flow structure to do this?
}
if (member.Converter.ContainsGenericParameters)
{
Logger.config.Warn($"{type.FullName}'s member {member.Member.Name} requests a converter that has unfilled type parameters");
goto endConverterAttr;
}
if (member.Converter.IsInterface || member.Converter.IsAbstract)
{
Logger.config.Warn($"{type.FullName}'s member {member.Member.Name} requests a converter that is not constructible");
goto endConverterAttr;
}
var targetType = converterAttr.ConverterTargetType;
if (!member.IsGenericConverter)
{
try
{
var conv = Activator.CreateInstance(converterAttr.ConverterType) as IValueConverter;
targetType = conv.Type;
}
catch
{
Logger.config.Warn($"{type.FullName}'s member {member.Member.Name} requests a converter who's target type could not be determined");
goto endConverterAttr;
}
}
if (targetType != member.Type)
{
Logger.config.Warn($"{type.FullName}'s member {member.Member.Name} requests a converter that is not of the member's type");
goto endConverterAttr;
}
member.ConverterTarget = targetType;
if (member.IsGenericConverter)
member.ConverterBase = typeof(ValueConverter<>).MakeGenericType(targetType);
else
member.ConverterBase = typeof(IValueConverter);
member.HasConverter = true;
}
endConverterAttr:
return true;
}
private static IEnumerable<SerializedMemberInfo> ReadObjectMembers(Type type, bool throwOnPrivateField = false, bool throwOnPrivateProperty = false)
{
var structure = new List<SerializedMemberInfo>();
// only looks at public/protected properties
foreach (var prop in type.GetProperties(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic))
{
if (prop.GetSetMethod(true)?.IsPrivate ?? true)
{ // we enter this block if the setter is inacessible or doesn't exist
continue; // ignore props without setter
}
if (prop.GetGetMethod(true)?.IsPrivate ?? true)
{ // we enter this block if the getter is inacessible or doesn't exist
//continue; // ignore props without getter
// TODO: is this what I want to do for private properties?
if (throwOnPrivateProperty)
throw new InvalidOperationException($"Cannot compile serializer for type {type} with private property {prop.Name}");
else
continue;
}
var smi = new SerializedMemberInfo
{
Member = prop,
IsVirtual = (prop.GetGetMethod(true)?.IsVirtual ?? false) ||
(prop.GetSetMethod(true)?.IsVirtual ?? false),
IsField = false,
Type = prop.PropertyType
};
if (!ProcessAttributesFor(type, ref smi)) continue;
structure.Add(smi);
}
// only look at public/protected fields
foreach (var field in type.GetFields(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic))
{
if (field.IsPrivate)
{
if (throwOnPrivateField && !field.Name.Contains(">k__BackingField")) // don't throw for private fields that are just backing fields
throw new InvalidOperationException($"Cannot compile serializer for type {type} with private field {field.Name}");
else
continue;
}
var smi = new SerializedMemberInfo
{
Member = field,
IsVirtual = false,
IsField = true,
Type = field.FieldType
};
if (!ProcessAttributesFor(type, ref smi)) continue;
structure.Add(smi);
}
return structure;
}
}
}

+ 155
- 0
IPA.Loader/Config/Stores/GeneratedStoreImpl/Serialization.cs View File

@ -0,0 +1,155 @@
using IPA.Config.Data;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Reflection.Emit;
using System.Text;
using System.Threading.Tasks;
using Boolean = IPA.Config.Data.Boolean;
namespace IPA.Config.Stores
{
internal static partial class GeneratedStoreImpl
{
// emit takes no args, leaves Value at top of stack
private static void EmitSerializeMember(ILGenerator il, SerializedMemberInfo member, GetLocal GetLocal)
{
EmitLoad(il, member);
var endSerialize = il.DefineLabel();
if (member.AllowNull)
{
var passedNull = il.DefineLabel();
il.Emit(OpCodes.Dup);
if (member.IsNullable)
il.Emit(OpCodes.Call, member.Nullable_HasValue.GetGetMethod());
il.Emit(OpCodes.Brtrue, passedNull);
il.Emit(OpCodes.Pop);
il.Emit(OpCodes.Ldnull);
il.Emit(OpCodes.Br, endSerialize);
il.MarkLabel(passedNull);
}
if (member.IsNullable)
il.Emit(OpCodes.Call, member.Nullable_Value.GetGetMethod());
var memberConversionType = member.ConversionType;
var targetType = GetExpectedValueTypeForType(memberConversionType);
if (member.HasConverter)
{
var stlocal = GetLocal(member.Type);
var valLocal = GetLocal(typeof(Value));
il.Emit(OpCodes.Stloc, stlocal);
il.BeginExceptionBlock();
il.Emit(OpCodes.Ldsfld, member.ConverterField);
il.Emit(OpCodes.Ldloc, stlocal);
if (member.IsGenericConverter)
{
var toValueBase = member.ConverterBase.GetMethod(nameof(ValueConverter<int>.ToValue),
new[] { member.ConverterTarget, typeof(object) });
var toValue = member.Converter.GetMethods(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance)
.FirstOrDefault(m => m.GetBaseDefinition() == toValueBase) ?? toValueBase;
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Call, toValue);
}
else
{
var toValueBase = typeof(IValueConverter).GetMethod(nameof(IValueConverter.ToValue),
new[] { typeof(object), typeof(object) });
var toValue = member.Converter.GetMethods(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance)
.FirstOrDefault(m => m.GetBaseDefinition() == toValueBase) ?? toValueBase;
il.Emit(OpCodes.Box);
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Call, toValue);
}
il.Emit(OpCodes.Stloc, valLocal);
il.BeginCatchBlock(typeof(Exception));
EmitWarnException(il, "Error serializing member using converter");
il.Emit(OpCodes.Ldnull);
il.Emit(OpCodes.Stloc, valLocal);
il.EndExceptionBlock();
il.Emit(OpCodes.Ldloc, valLocal);
}
else if (targetType == typeof(Text))
{ // only happens when arg is a string or char
var TextCreate = typeof(Value).GetMethod(nameof(Value.Text));
if (member.Type == typeof(char))
{
var strFromChar = typeof(char).GetMethod(nameof(char.ToString), new[] { typeof(char) });
il.Emit(OpCodes.Call, strFromChar);
}
il.Emit(OpCodes.Call, TextCreate);
}
else if (targetType == typeof(Boolean))
{
var BoolCreate = typeof(Value).GetMethod(nameof(Value.Bool));
il.Emit(OpCodes.Call, BoolCreate);
}
else if (targetType == typeof(Integer))
{
var IntCreate = typeof(Value).GetMethod(nameof(Value.Integer));
EmitNumberConvertTo(il, IntCreate.GetParameters()[0].ParameterType, member.Type);
il.Emit(OpCodes.Call, IntCreate);
}
else if (targetType == typeof(FloatingPoint))
{
var FloatCreate = typeof(Value).GetMethod(nameof(Value.Float));
EmitNumberConvertTo(il, FloatCreate.GetParameters()[0].ParameterType, member.Type);
il.Emit(OpCodes.Call, FloatCreate);
}
else if (targetType == typeof(List))
{
// TODO: impl this (enumerables)
il.Emit(OpCodes.Pop);
il.Emit(OpCodes.Ldnull);
}
else if (targetType == typeof(Map))
{
// TODO: support other aggregate types
if (!memberConversionType.IsValueType)
{
// if it is a reference type, we assume that its a generated type implementing IGeneratedStore
var IGeneratedStore_Serialize = typeof(IGeneratedStore).GetMethod(nameof(IGeneratedStore.Serialize));
var IGeneratedStoreT_CopyFrom = typeof(IGeneratedStore<>).MakeGenericType(member.Type)
.GetMethod(nameof(IGeneratedStore<object>.CopyFrom));
if (!member.IsVirtual)
{
var noCreate = il.DefineLabel();
var stlocal = GetLocal(member.Type);
// first check to make sure that this is an IGeneratedStore, because we don't control assignments to it
il.Emit(OpCodes.Dup);
il.Emit(OpCodes.Isinst, typeof(IGeneratedStore));
il.Emit(OpCodes.Brtrue_S, noCreate);
il.Emit(OpCodes.Stloc, stlocal);
EmitCreateChildGenerated(il, member.Type);
il.Emit(OpCodes.Dup);
il.Emit(OpCodes.Ldloc, stlocal);
il.Emit(OpCodes.Ldc_I4_0);
il.Emit(OpCodes.Callvirt, IGeneratedStoreT_CopyFrom);
il.Emit(OpCodes.Dup);
il.Emit(OpCodes.Stloc, stlocal);
EmitStore(il, member, il => il.Emit(OpCodes.Ldloc, stlocal));
il.MarkLabel(noCreate);
}
il.Emit(OpCodes.Callvirt, IGeneratedStore_Serialize);
}
else
{ // generate serialization for value types
}
}
il.MarkLabel(endSerialize);
}
}
}

+ 206
- 0
IPA.Loader/Config/Stores/GeneratedStoreImpl/Utility.cs View File

@ -0,0 +1,206 @@
using IPA.Logging;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Reflection.Emit;
using System.Text;
using System.Threading.Tasks;
namespace IPA.Config.Stores
{
internal static partial class GeneratedStoreImpl
{
#region Logs
private static readonly MethodInfo LogErrorMethod = typeof(GeneratedStoreImpl).GetMethod(nameof(LogError), BindingFlags.NonPublic | BindingFlags.Static);
internal static void LogError(Type expected, Type found, string message)
{
Logger.config.Notice($"{message}{(expected == null ? "" : $" (expected {expected}, found {found?.ToString() ?? "null"})")}");
}
private static readonly MethodInfo LogWarningMethod = typeof(GeneratedStoreImpl).GetMethod(nameof(LogWarning), BindingFlags.NonPublic | BindingFlags.Static);
internal static void LogWarning(string message)
{
Logger.config.Warn(message);
}
private static readonly MethodInfo LogWarningExceptionMethod = typeof(GeneratedStoreImpl).GetMethod(nameof(LogWarningException), BindingFlags.NonPublic | BindingFlags.Static);
internal static void LogWarningException(Exception exception)
{
Logger.config.Warn(exception);
}
#endregion
private delegate LocalBuilder GetLocal(Type type, int idx = 0);
private static GetLocal MakeGetLocal(ILGenerator il)
{ // TODO: improve this shit a bit so that i can release a hold of a variable and do more auto managing
var locals = new List<LocalBuilder>();
LocalBuilder GetLocal(Type ty, int i = 0)
{
var builder = locals.Where(b => b.LocalType == ty).Skip(i).FirstOrDefault();
if (builder == null)
{
builder = il.DeclareLocal(ty);
locals.Add(builder);
}
return builder;
}
return GetLocal;
}
private static void EmitLoad(ILGenerator il, SerializedMemberInfo member, Action<ILGenerator> thisarg = null)
{
if (thisarg == null)
thisarg = il => il.Emit(OpCodes.Ldarg_0);
thisarg(il); // load this
if (member.IsField)
il.Emit(OpCodes.Ldfld, member.Member as FieldInfo);
else
{ // member is a property
var prop = member.Member as PropertyInfo;
var getter = prop.GetGetMethod();
if (getter == null) throw new InvalidOperationException($"Property {member.Name} does not have a getter and is not ignored");
il.Emit(OpCodes.Call, getter);
}
}
private static void EmitStore(ILGenerator il, SerializedMemberInfo member, Action<ILGenerator> value)
{
il.Emit(OpCodes.Ldarg_0); // load this
value(il);
if (member.IsField)
il.Emit(OpCodes.Stfld, member.Member as FieldInfo);
else
{ // member is a property
var prop = member.Member as PropertyInfo;
var setter = prop.GetSetMethod();
if (setter == null) throw new InvalidOperationException($"Property {member.Name} does not have a setter and is not ignored");
il.Emit(OpCodes.Call, setter);
}
}
private static void EmitWarnException(ILGenerator il, string v)
{
il.Emit(OpCodes.Ldstr, v);
il.Emit(OpCodes.Call, LogWarningMethod);
il.Emit(OpCodes.Call, LogWarningExceptionMethod);
}
private static void EmitLogError(ILGenerator il, string message, bool tailcall = false, Action<ILGenerator> expected = null, Action<ILGenerator> found = null)
{
if (expected == null) expected = il => il.Emit(OpCodes.Ldnull);
if (found == null) found = il => il.Emit(OpCodes.Ldnull);
expected(il);
found(il);
il.Emit(OpCodes.Ldstr, message);
if (tailcall) il.Emit(OpCodes.Tailcall);
il.Emit(OpCodes.Call, LogErrorMethod);
}
private static readonly MethodInfo Type_GetTypeFromHandle = typeof(Type).GetMethod(nameof(Type.GetTypeFromHandle));
private static void EmitTypeof(ILGenerator il, Type type)
{
il.Emit(OpCodes.Ldtoken, type);
il.Emit(OpCodes.Call, Type_GetTypeFromHandle);
}
private static readonly Type IDisposable_t = typeof(IDisposable);
private static readonly MethodInfo IDisposable_Dispose = IDisposable_t.GetMethod(nameof(IDisposable.Dispose));
private static readonly Type Decimal_t = typeof(decimal);
private static readonly ConstructorInfo Decimal_FromFloat = Decimal_t.GetConstructor(new[] { typeof(float) });
private static readonly ConstructorInfo Decimal_FromDouble = Decimal_t.GetConstructor(new[] { typeof(double) });
private static readonly ConstructorInfo Decimal_FromInt = Decimal_t.GetConstructor(new[] { typeof(int) });
private static readonly ConstructorInfo Decimal_FromUInt = Decimal_t.GetConstructor(new[] { typeof(uint) });
private static readonly ConstructorInfo Decimal_FromLong = Decimal_t.GetConstructor(new[] { typeof(long) });
private static readonly ConstructorInfo Decimal_FromULong = Decimal_t.GetConstructor(new[] { typeof(ulong) });
private static void EmitNumberConvertTo(ILGenerator il, Type to, Type from)
{ // WARNING: THIS USES THE NO-OVERFLOW OPCODES
if (to == from) return;
if (to == Decimal_t)
{
if (from == typeof(float)) il.Emit(OpCodes.Newobj, Decimal_FromFloat);
else if (from == typeof(double)) il.Emit(OpCodes.Newobj, Decimal_FromDouble);
else if (from == typeof(long)) il.Emit(OpCodes.Newobj, Decimal_FromLong);
else if (from == typeof(ulong)) il.Emit(OpCodes.Newobj, Decimal_FromULong);
else if (from == typeof(int)) il.Emit(OpCodes.Newobj, Decimal_FromInt);
else if (from == typeof(uint)) il.Emit(OpCodes.Newobj, Decimal_FromUInt);
else if (from == typeof(IntPtr))
{
EmitNumberConvertTo(il, typeof(long), from);
EmitNumberConvertTo(il, to, typeof(long));
}
else if (from == typeof(UIntPtr))
{
EmitNumberConvertTo(il, typeof(ulong), from);
EmitNumberConvertTo(il, to, typeof(ulong));
}
else
{ // if the source is anything else, we first convert to int because that can contain all other values
EmitNumberConvertTo(il, typeof(int), from);
EmitNumberConvertTo(il, to, typeof(int));
};
}
else if (from == Decimal_t)
{
if (to == typeof(IntPtr))
{
EmitNumberConvertTo(il, typeof(long), from);
EmitNumberConvertTo(il, to, typeof(long));
}
else if (to == typeof(UIntPtr))
{
EmitNumberConvertTo(il, typeof(ulong), from);
EmitNumberConvertTo(il, to, typeof(ulong));
}
else
{
var method = Decimal_t.GetMethod($"To{to.Name}"); // conveniently, this is the pattern of the to* names
il.Emit(OpCodes.Call, method);
}
}
else if (to == typeof(IntPtr)) il.Emit(OpCodes.Conv_I);
else if (to == typeof(UIntPtr)) il.Emit(OpCodes.Conv_U);
else if (to == typeof(sbyte)) il.Emit(OpCodes.Conv_I1);
else if (to == typeof(byte)) il.Emit(OpCodes.Conv_U1);
else if (to == typeof(short)) il.Emit(OpCodes.Conv_I2);
else if (to == typeof(ushort)) il.Emit(OpCodes.Conv_U2);
else if (to == typeof(int)) il.Emit(OpCodes.Conv_I4);
else if (to == typeof(uint)) il.Emit(OpCodes.Conv_U4);
else if (to == typeof(long)) il.Emit(OpCodes.Conv_I8);
else if (to == typeof(ulong)) il.Emit(OpCodes.Conv_U8);
else if (to == typeof(float))
{
if (from == typeof(byte)
|| from == typeof(ushort)
|| from == typeof(uint)
|| from == typeof(ulong)
|| from == typeof(UIntPtr)) il.Emit(OpCodes.Conv_R_Un);
il.Emit(OpCodes.Conv_R4);
}
else if (to == typeof(double))
{
if (from == typeof(byte)
|| from == typeof(ushort)
|| from == typeof(uint)
|| from == typeof(ulong)
|| from == typeof(UIntPtr)) il.Emit(OpCodes.Conv_R_Un);
il.Emit(OpCodes.Conv_R8);
}
}
private static void EmitCreateChildGenerated(ILGenerator il, Type childType)
{
var method = CreateGParent.MakeGenericMethod(childType);
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Call, method);
}
}
}

+ 106
- 0
IPA.Loader/Config/Stores/GeneratedStorePublicInterface.cs View File

@ -0,0 +1,106 @@
using IPA.Config.Stores.Attributes;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace IPA.Config.Stores
{
/// <summary>
/// A class providing an extension for <see cref="Config"/> to make it easy to use generated
/// config stores.
/// </summary>
public static class GeneratedStore
{
/// <summary>
/// The name of the assembly that internals must be visible to to allow internal protection.
/// </summary>
public const string AssemblyVisibilityTarget = GeneratedStoreImpl.GeneratedAssemblyName;
/// <summary>
/// Creates a generated <see cref="IConfigStore"/> of type <typeparamref name="T"/>, registers it to
/// the <see cref="Config"/> object, and returns it. This also forces a synchronous config load via
/// <see cref="Config.LoadSync"/> if <paramref name="loadSync"/> is <see langword="true"/>.
/// </summary>
/// <remarks>
/// <para>
/// <typeparamref name="T"/> must be a public non-<see langword="sealed"/> class.
/// It can also be internal, but in that case, then your assembly must have the following attribute
/// to allow the generated code to reference it.
/// <code lang="csharp">
/// [assembly: InternalsVisibleTo(IPA.Config.Stores.GeneratedStore.AssemblyVisibilityTarget)]
/// </code>
/// </para>
/// <para>
/// Only fields and properties that are public or protected will be considered, and only properties
/// where both the getter and setter are public or protected are considered. Any fields or properties
/// with an <see cref="IgnoreAttribute"/> applied to them are also ignored. Having properties be <see langword="virtual"/> is not strictly
/// necessary, however it allows the generated type to keep track of changes and lock around them so that the config will auto-save.
/// </para>
/// <para>
/// All of the attributes in the <see cref="Attributes"/> namespace are handled as described by them.
/// </para>
/// <para>
/// If the <typeparamref name="T"/> declares a public or protected, <see langword="virtual"/>
/// method <c>Changed()</c>, then that method may be called to artificially signal to the runtime that the content of the object
/// has changed. That method will also be called after the write locks are released when a property is set anywhere in the owning
/// tree. This will only be called on the outermost generated object of the config structure, even if the change being signaled
/// is somewhere deep into the tree.
/// </para>
/// <para>
/// Similarly, <typeparamref name="T"/> can declare a public or protected, <see langword="virtual"/>
/// method <c>OnReload()</c>, which will be called on the filesystem reader thread after the object has been repopulated with new data
/// values. It will be called <i>after</i> the write lock for this object is released. This will only be called on the outermost generated
/// object of the config structure.
/// </para>
/// <para>
/// Similarly, <typeparamref name="T"/> can declare a public or protected, <see langword="virtual"/>
/// method <c>CopyFrom(ConfigType)</c> (the first parameter is the type it is defined on), which may be called to copy the properties from
/// another object of its type easily, and more importantly, as only one change. Its body will be executed after the values have been copied.
/// </para>
/// <para>
/// Similarly, <typeparamref name="T"/> can declare a public or protected, <see langword="virtual"/>
/// method <c>ChangeTransaction()</c> returning <see cref="IDisposable"/>, which may be called to get an object representing a transactional
/// change. This may be used to change a lot of properties at once without triggering a save multiple times. Ideally, this is used in a
/// <see langword="using"/> block or declaration. The <see cref="IDisposable"/> returned from your implementation will have its
/// <see cref="IDisposable.Dispose"/> called <i>after</i> <c>Changed()</c> is called, but <i>before</i> the write lock is released.
/// Unless you have a very good reason to use the nested <see cref="IDisposable"/>, avoid it.
/// </para>
/// <para>
/// If <typeparamref name="T"/> is marked with <see cref="NotifyPropertyChangesAttribute"/>, the resulting object will implement
/// <see cref="INotifyPropertyChanged"/>. Similarly, if <typeparamref name="T"/> implements <see cref="INotifyPropertyChanged"/>,
/// the resulting object will implement it and notify it too.
/// </para>
/// </remarks>
/// <typeparam name="T">the type to wrap</typeparam>
/// <param name="cfg">the <see cref="Config"/> to register to</param>
/// <param name="loadSync">whether to synchronously load the content, or trigger an async load</param>
/// <returns>a generated instance of <typeparamref name="T"/> as a special <see cref="IConfigStore"/></returns>
public static T Generated<T>(this Config cfg, bool loadSync = true) where T : class
{
var ret = GeneratedStoreImpl.Create<T>();
cfg.SetStore(ret as IConfigStore);
if (loadSync)
cfg.LoadSync();
else
cfg.LoadAsync();
return ret;
}
/// <summary>
/// Creates a generated store outside of the context of the config system.
/// </summary>
/// <remarks>
/// See <see cref="Generated{T}(Config, bool)"/> for more information about how it behaves.
/// </remarks>
/// <typeparam name="T">the type to wrap</typeparam>
/// <returns>a generated instance of <typeparamref name="T"/> implementing functionality described by <see cref="Generated{T}(Config, bool)"/></returns>
/// <seealso cref="Generated{T}(Config, bool)"/>
public static T Create<T>() where T : class
=> GeneratedStoreImpl.Create<T>();
}
}

+ 8
- 1
IPA.Loader/IPA.Loader.csproj View File

@ -103,8 +103,15 @@
<Compile Include="Config\Stores\Converters.cs" />
<Compile Include="Config\Stores\CustomObjectConverter.cs" />
<Compile Include="Config\Stores\CollectionConverter.cs" />
<Compile Include="Config\Stores\GeneratedStoreImpl.cs" />
<Compile Include="Config\Stores\GeneratedStoreImpl\Deserialization.cs" />
<Compile Include="Config\Stores\GeneratedStoreImpl\GeneratedStoreImpl.cs" />
<Compile Include="Config\Stores\GeneratedStoreCollections.cs" />
<Compile Include="Config\Stores\GeneratedStoreImpl\IGeneratedStore.cs" />
<Compile Include="Config\Stores\GeneratedStoreImpl\MakeCreator.cs" />
<Compile Include="Config\Stores\GeneratedStoreImpl\ObjectStructure.cs" />
<Compile Include="Config\Stores\GeneratedStoreImpl\Serialization.cs" />
<Compile Include="Config\Stores\GeneratedStoreImpl\Utility.cs" />
<Compile Include="Config\Stores\GeneratedStorePublicInterface.cs" />
<Compile Include="Config\Stores\ValueConverter.cs" />
<Compile Include="JsonConverters\AlmostVersionConverter.cs" />
<Compile Include="JsonConverters\MultilineStringConverter.cs" />


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