internal static Config GetConfigFor(string modName, ParameterInfo info)
{
var prefs = Array.Empty <string>();
if (info.GetCustomAttribute <PreferAttribute>() is PreferAttribute prefer)
{
prefs = prefer.PreferenceOrder;
}
if (info.GetCustomAttribute <NameAttribute>() is NameAttribute name)
{
modName = name.Name;
}
return(GetConfigFor(modName, prefs));
}
private static void InstallPendingModUpdates()
{
var pendingDir = Path.Combine(UnityGame.InstallPath, "IPA", "Pending");
if (!Directory.Exists(pendingDir))
{
return;
}
// there are pending updates, install
updater.Info("Installing pending updates");
var toDelete = Array.Empty <string>();
var delFn = Path.Combine(pendingDir, DeleteFileName);
if (File.Exists(delFn))
{
toDelete = File.ReadAllLines(delFn);
File.Delete(delFn);
}
foreach (var file in toDelete)
{
try
{
File.Delete(Path.Combine(UnityGame.InstallPath, file));
}
catch (Exception e)
{
updater.Error("While trying to install pending updates: Error deleting file marked for deletion");
updater.Error(e);
}
}
#region Self Protection
string path;
if (Directory.Exists(path = Path.Combine(pendingDir, "IPA")))
{
var dirs = new Stack <string>(20);
dirs.Push(path);
while (dirs.Count > 0)
{
var currentDir = dirs.Pop();
string[] subDirs;
string[] files;
try
{
subDirs = Directory.GetDirectories(currentDir);
files = Directory.GetFiles(currentDir);
}
catch (UnauthorizedAccessException e)
{
updater.Error(e);
continue;
}
catch (DirectoryNotFoundException e)
{
updater.Error(e);
continue;
}
foreach (var file in files)
{
try
{
if (!Utils.GetRelativePath(file, path).Split(Path.PathSeparator).Contains("Pending"))
{
File.Delete(file);
}
}
catch (FileNotFoundException e)
{
updater.Error(e);
}
}
foreach (var str in subDirs)
{
dirs.Push(str);
}
}
}
if (File.Exists(path = Path.Combine(pendingDir, "IPA.exe")))
{
File.Delete(path);
if (File.Exists(path = Path.Combine(pendingDir, "Mono.Cecil.dll")))
{
File.Delete(path);
}
}
#endregion
try
{
Utils.CopyAll(new DirectoryInfo(pendingDir), new DirectoryInfo(UnityGame.InstallPath), onCopyException: (e, f) =>
{
updater.Error($"Error copying file {Utils.GetRelativePath(f.FullName, pendingDir)} from Pending:");
updater.Error(e);
return(true);
});
}
catch (Exception e)
{
updater.Error("While trying to install pending updates: Error copying files in");
updater.Error(e);
}
try
{
Directory.Delete(pendingDir, true);
}
catch (Exception e)
{
updater.Error("Something went wrong performing an operation that should never fail!");
updater.Error(e);
}
}
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);
if (!structure.Any())
{
Logger.config.Warn($"Custom type {type.FullName} has no accessible members");
}
#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*/
//CreateAndInitializeConvertersFor(type, structure);
#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 = MakeLocalAllocator(il);
foreach (var member in structure)
{
if (NeedsCorrection(member))
{
EmitLoadCorrectStore(il, member, false, true, GetLocal, GetMethodThis, GetMethodThis, GetMethodThis);
}
}
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($"<>{nameof(IGeneratedStore.Serialize)}", virtualPropertyMethodAttr, IGeneratedStore_Serialize.ReturnType, Type.EmptyTypes);
typeBuilder.DefineMethodOverride(serializeGen, IGeneratedStore_Serialize);
{ // this is non-locking because the only code that will call this will already own the correct lock
var il = serializeGen.GetILGenerator();
var GetLocal = MakeLocalAllocator(il);
EmitSerializeStructure(il, structure, GetLocal, GetMethodThis, GetMethodThis);
il.Emit(OpCodes.Ret);
}
#endregion
#region IGeneratedStore.Deserialize
var deserializeGen = typeBuilder.DefineMethod($"<>{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, $"Invalid root for deserializing {type.FullName}", tailcall: true,
expected: il => EmitTypeof(il, Map_t), found: il =>
{
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Callvirt, Object_GetType);
});
il.Emit(OpCodes.Ret);
il.MarkLabel(notMapError);
var GetLocal = MakeLocalAllocator(il);
// head of stack is Map instance
EmitDeserializeStructure(il, structure, mapLocal, valueLocal, GetLocal, GetMethodThis, GetMethodThis);
if (notifyChanged != null)
{
foreach (var member in structure)
{
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Ldstr, member.Name);
il.Emit(OpCodes.Call, notifyChanged);
}
}
il.Emit(OpCodes.Ret);
}
#endregion
#endregion
#region IConfigStore
typeBuilder.AddInterfaceImplementation(typeof(IConfigStore));
var IConfigStore_t = typeof(IConfigStore);
var IConfigStore_GetSyncObject = IConfigStore_t.GetProperty(nameof(IConfigStore.SyncObject)).GetGetMethod();
var IConfigStore_GetWriteSyncObject = IConfigStore_t.GetProperty(nameof(IConfigStore.WriteSyncObject)).GetGetMethod();
var IConfigStore_WriteTo = IConfigStore_t.GetMethod(nameof(IConfigStore.WriteTo));
var IConfigStore_ReadFrom = IConfigStore_t.GetMethod(nameof(IConfigStore.ReadFrom));
#region IConfigStore.SyncObject
var syncObjProp = typeBuilder.DefineProperty(nameof(IConfigStore.SyncObject), PropertyAttributes.None, typeof(WaitHandle), null);
var syncObjPropGet = typeBuilder.DefineMethod($"<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 = MakeLocalAllocator(il);
foreach (var member in structure)
{
il.BeginExceptionBlock();
EmitLoadCorrectStore(il, member, false, false, GetLocal, il => il.Emit(OpCodes.Ldarg_1), GetMethodThis, GetMethodThis);
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);
{
var il = propSet.GetILGenerator();
var transactionLocal = il.DeclareLocal(IDisposable_t);
var GetLocal = MakeLocalAllocator(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, GetMethodThis, GetMethodThis);
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);
}
private static TDelegate MakeDelegate(string name)
{
var delParams = AccessorDelegateInfo <TDelegate> .Parameters;
var method = typeof(T).GetMethod(name, BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance | BindingFlags.DeclaredOnly,
null, delParams.Skip(1).Select(p => p.ParameterType).ToArray(), Array.Empty <ParameterModifier>());
if (method == null)
{
throw new MissingMethodException(typeof(T).FullName, name);
}
var retType = AccessorDelegateInfo <TDelegate> .Invoke.ReturnType;
if (!retType.IsAssignableFrom(method.ReturnType))
{
throw new ArgumentException($"The method found returns a type incompatable with the return type of {typeof(TDelegate)}");
}
return((TDelegate)Delegate.CreateDelegate(AccessorDelegateInfo <TDelegate> .Type, method, true));
}