public static bool WriteArguments(ILProcessor worker, MethodDefinition md, bool skipFirst)
{
// write each argument
short argNum = 1;
foreach (ParameterDefinition pd in md.Parameters)
{
if (argNum == 1 && skipFirst)
{
argNum += 1;
continue;
}
MethodReference writeFunc = Writers.GetWriteFunc(pd.ParameterType);
if (writeFunc == null)
{
Weaver.Error($"{md} has invalid parameter {pd}");
return(false);
}
// use built-in writer func on writer object
worker.Append(worker.Create(OpCodes.Ldloc_0)); // writer object
worker.Append(worker.Create(OpCodes.Ldarg, argNum)); // argument
worker.Append(worker.Create(OpCodes.Call, writeFunc)); // call writer func on writer object
argNum += 1;
}
return(true);
}
static void GenerateSerialization(TypeDefinition td)
{
Weaver.DLog(td, " GenerateSerialization");
foreach (MethodDefinition m in td.Methods)
{
if (m.Name == "Serialize")
{
return;
}
}
if (td.Fields.Count == 0)
{
return;
}
// check for self-referencing types
foreach (FieldDefinition field in td.Fields)
{
if (field.FieldType.FullName == td.FullName)
{
Weaver.Error($"{td} has field ${field} that references itself");
return;
}
}
MethodDefinition serializeFunc = new MethodDefinition("Serialize",
MethodAttributes.Public | MethodAttributes.Virtual | MethodAttributes.HideBySig,
Weaver.voidType);
serializeFunc.Parameters.Add(new ParameterDefinition("writer", ParameterAttributes.None, Weaver.CurrentAssembly.MainModule.ImportReference(Weaver.NetworkWriterType)));
ILProcessor serWorker = serializeFunc.Body.GetILProcessor();
foreach (FieldDefinition field in td.Fields)
{
if (field.IsStatic || field.IsPrivate || field.IsSpecialName)
{
continue;
}
MethodReference writeFunc = Writers.GetWriteFunc(field.FieldType);
if (writeFunc != null)
{
serWorker.Append(serWorker.Create(OpCodes.Ldarg_1));
serWorker.Append(serWorker.Create(OpCodes.Ldarg_0));
serWorker.Append(serWorker.Create(OpCodes.Ldfld, field));
serWorker.Append(serWorker.Create(OpCodes.Call, writeFunc));
}
else
{
Weaver.Error($"{field} has unsupported type");
return;
}
}
serWorker.Append(serWorker.Create(OpCodes.Ret));
td.Methods.Add(serializeFunc);
}
private static void LoadMessageReadWriter(ModuleDefinition module, TypeDefinition klass)
{
if (!klass.IsAbstract && !klass.IsInterface && klass.ImplementsInterface <NetworkMessage>())
{
Readers.GetReadFunc(module.ImportReference(klass));
Writers.GetWriteFunc(module.ImportReference(klass));
}
foreach (TypeDefinition td in klass.NestedTypes)
{
LoadMessageReadWriter(module, td);
}
}
public static bool WriteArguments(ILProcessor worker, Writers writers, Logger Log, MethodDefinition method, RemoteCallType callType, ref bool WeavingFailed)
{
// write each argument
// example result
/*
* writer.WritePackedInt32(someNumber);
* writer.WriteNetworkIdentity(someTarget);
*/
bool skipFirst = callType == RemoteCallType.TargetRpc &&
TargetRpcProcessor.HasNetworkConnectionParameter(method);
// arg of calling function, arg 0 is "this" so start counting at 1
int argNum = 1;
foreach (ParameterDefinition param in method.Parameters)
{
// NetworkConnection is not sent via the NetworkWriter so skip it here
// skip first for NetworkConnection in TargetRpc
if (argNum == 1 && skipFirst)
{
argNum += 1;
continue;
}
// skip SenderConnection in Command
if (IsSenderConnection(param, callType))
{
argNum += 1;
continue;
}
MethodReference writeFunc = writers.GetWriteFunc(param.ParameterType, ref WeavingFailed);
if (writeFunc == null)
{
Log.Error($"{method.Name} has invalid parameter {param}", method);
WeavingFailed = true;
return(false);
}
// use built-in writer func on writer object
// NetworkWriter object
worker.Emit(OpCodes.Ldloc_0);
// add argument to call
worker.Emit(OpCodes.Ldarg, argNum);
// call writer extension method
worker.Emit(OpCodes.Call, writeFunc);
argNum += 1;
}
return(true);
}
public bool WriteArguments(ILProcessor worker, MethodDefinition method, VariableDefinition writer, RemoteCallType callType)
{
// write each argument
// example result
/*
* writer.WritePackedInt32(someNumber);
* writer.WriteNetworkIdentity(someTarget);
*/
bool skipFirst = callType == RemoteCallType.ClientRpc &&
HasNetworkConnectionParameter(method);
// arg of calling function, arg 0 is "this" so start counting at 1
int argNum = 1;
foreach (ParameterDefinition param in method.Parameters)
{
// NetworkConnection is not sent via the NetworkWriter so skip it here
// skip first for NetworkConnection in TargetRpc
if (argNum == 1 && skipFirst)
{
argNum += 1;
continue;
}
// skip SenderConnection in ServerRpc
if (IsNetworkConnection(param.ParameterType))
{
argNum += 1;
continue;
}
MethodReference writeFunc = writers.GetWriteFunc(param.ParameterType, method.DebugInformation.SequencePoints.FirstOrDefault());
if (writeFunc == null)
{
logger.Error($"{method.Name} has invalid parameter {param}", method, method.DebugInformation.SequencePoints.FirstOrDefault());
return(false);
}
// use built-in writer func on writer object
// NetworkWriter object
worker.Append(worker.Create(OpCodes.Ldloc, writer));
// add argument to call
worker.Append(worker.Create(OpCodes.Ldarg, argNum));
// call writer extension method
worker.Append(worker.Create(OpCodes.Call, writeFunc));
argNum += 1;
}
return(true);
}
private static MethodDefinition GenerateEnumWriteFunc(TypeReference variable)
{
MethodDefinition writerFunc = GenerateWriterFunc(variable);
ILProcessor worker = writerFunc.Body.GetILProcessor();
MethodReference underlyingWriter = Writers.GetWriteFunc(variable.Resolve().GetEnumUnderlyingType());
worker.Append(worker.Create(OpCodes.Ldarg_0));
worker.Append(worker.Create(OpCodes.Ldarg_1));
worker.Append(worker.Create(OpCodes.Call, underlyingWriter));
worker.Append(worker.Create(OpCodes.Ret));
return(writerFunc);
}
// serialization of individual element
private static MethodReference GenerateSerialization(string methodName, TypeDefinition td,
TypeReference itemType)
{
Weaver.DLog(td, " GenerateSerialization");
foreach (var m in td.Methods)
{
if (m.Name == methodName)
{
return(m);
}
}
var serializeFunc = new MethodDefinition(methodName, MethodAttributes.Public |
MethodAttributes.Virtual |
MethodAttributes.Public |
MethodAttributes.HideBySig,
Weaver.voidType);
serializeFunc.Parameters.Add(new ParameterDefinition("writer", ParameterAttributes.None,
Weaver.CurrentAssembly.MainModule.ImportReference(Weaver.NetworkWriterType)));
serializeFunc.Parameters.Add(new ParameterDefinition("item", ParameterAttributes.None, itemType));
var serWorker = serializeFunc.Body.GetILProcessor();
if (itemType.IsGenericInstance)
{
Weaver.Error($"{td} cannot have generic elements {itemType}");
return(null);
}
var writeFunc = Writers.GetWriteFunc(itemType);
if (writeFunc != null)
{
serWorker.Append(serWorker.Create(OpCodes.Ldarg_1));
serWorker.Append(serWorker.Create(OpCodes.Ldarg_2));
serWorker.Append(serWorker.Create(OpCodes.Call, writeFunc));
}
else
{
Weaver.Error($"{td} cannot have item of type {itemType}. Use a type supported by mirror instead");
return(null);
}
serWorker.Append(serWorker.Create(OpCodes.Ret));
td.Methods.Add(serializeFunc);
return(serializeFunc);
}
private static void CallWriter(ILProcessor serWorker, FieldDefinition field)
{
MethodReference writeFunc = Writers.GetWriteFunc(field.FieldType);
if (writeFunc != null)
{
serWorker.Append(serWorker.Create(OpCodes.Ldarg_1));
serWorker.Append(serWorker.Create(OpCodes.Ldarg_0));
serWorker.Append(serWorker.Create(OpCodes.Ldfld, field));
serWorker.Append(serWorker.Create(OpCodes.Call, writeFunc));
}
else
{
Weaver.Error($"{field.Name} has unsupported type", field);
}
}
// serialization of individual element
static bool GenerateSerialization(string methodName, TypeDefinition td, TypeReference itemType, TypeReference mirrorBaseType)
{
Weaver.DLog(td, " GenerateSerialization");
bool existing = td.HasMethodInBaseType(methodName, mirrorBaseType);
if (existing)
{
return(true);
}
// this check needs to happen inside GenerateSerialization because
// we need to check if user has made custom function above
if (itemType.IsGenericInstance)
{
Weaver.Error($"Can not create Serialize or Deserialize for generic element in {td.Name}. Override virtual methods with custom Serialize and Deserialize to use {itemType} in SyncList", td);
return(false);
}
var serializeFunc = new MethodDefinition(methodName, MethodAttributes.Public |
MethodAttributes.Virtual |
MethodAttributes.Public |
MethodAttributes.HideBySig,
WeaverTypes.Import(typeof(void)));
serializeFunc.Parameters.Add(new ParameterDefinition("writer", ParameterAttributes.None, WeaverTypes.Import <NetworkWriter>()));
serializeFunc.Parameters.Add(new ParameterDefinition("item", ParameterAttributes.None, itemType));
ILProcessor worker = serializeFunc.Body.GetILProcessor();
MethodReference writeFunc = Writers.GetWriteFunc(itemType);
if (writeFunc != null)
{
worker.Append(worker.Create(OpCodes.Ldarg_1));
worker.Append(worker.Create(OpCodes.Ldarg_2));
worker.Append(worker.Create(OpCodes.Call, writeFunc));
}
else
{
Weaver.Error($"{td.Name} has sync object generic type {itemType.Name}. Use a type supported by mirror instead", td);
return(false);
}
worker.Append(worker.Create(OpCodes.Ret));
td.Methods.Add(serializeFunc);
return(true);
}
static bool LoadMessageReadWriter(ModuleDefinition module, TypeDefinition klass)
{
bool modified = false;
if (!klass.IsAbstract && !klass.IsInterface && klass.ImplementsInterface <NetworkMessage>())
{
Readers.GetReadFunc(module.ImportReference(klass));
Writers.GetWriteFunc(module.ImportReference(klass));
modified = true;
}
foreach (TypeDefinition td in klass.NestedTypes)
{
modified |= LoadMessageReadWriter(module, td);
}
return(modified);
}
// serialization of individual element
static MethodReference GenerateSerialization(string methodName, TypeDefinition td, TypeReference itemType)
{
Weaver.DLog(td, " GenerateSerialization");
foreach (MethodDefinition m in td.Methods)
{
if (m.Name == methodName)
{
return(m);
}
}
MethodDefinition serializeFunc = new MethodDefinition(methodName, MethodAttributes.Public |
MethodAttributes.Virtual |
MethodAttributes.Public |
MethodAttributes.HideBySig,
Weaver.voidType);
serializeFunc.Parameters.Add(new ParameterDefinition("writer", ParameterAttributes.None, Weaver.CurrentAssembly.MainModule.ImportReference(Weaver.NetworkWriterType)));
serializeFunc.Parameters.Add(new ParameterDefinition("item", ParameterAttributes.None, itemType));
ILProcessor serWorker = serializeFunc.Body.GetILProcessor();
if (itemType.IsGenericInstance)
{
Weaver.Error("GenerateSerialization for " + Helpers.PrettyPrintType(itemType) + " failed. Can't have generic parameters");
return(null);
}
MethodReference writeFunc = Writers.GetWriteFunc(itemType);
if (writeFunc != null)
{
serWorker.Append(serWorker.Create(OpCodes.Ldarg_1));
serWorker.Append(serWorker.Create(OpCodes.Ldarg_2));
serWorker.Append(serWorker.Create(OpCodes.Call, writeFunc));
}
else
{
Weaver.Error("GenerateSerialization for " + td.Name + " unknown type [" + itemType + "/" + itemType.FullName + "]. Member variables must be basic types.");
return(null);
}
serWorker.Append(serWorker.Create(OpCodes.Ret));
td.Methods.Add(serializeFunc);
return(serializeFunc);
}
// Generates serialization methods for synclists
static void GenerateReadersAndWriters(Writers writers, Readers readers, TypeReference tr, ref bool WeavingFailed)
{
if (tr is GenericInstanceType genericInstance)
{
foreach (TypeReference argument in genericInstance.GenericArguments)
{
if (!argument.IsGenericParameter)
{
readers.GetReadFunc(argument, ref WeavingFailed);
writers.GetWriteFunc(argument, ref WeavingFailed);
}
}
}
if (tr != null)
{
GenerateReadersAndWriters(writers, readers, tr.Resolve().BaseType, ref WeavingFailed);
}
}
/// <summary>
/// Generates serialization methods for synclists
/// </summary>
/// <param name="td">The synclist class</param>
/// <param name="mirrorBaseType">the base SyncObject td inherits from</param>
static void GenerateReadersAndWriters(TypeReference tr)
{
if (tr is GenericInstanceType genericInstance)
{
foreach (TypeReference argument in genericInstance.GenericArguments)
{
if (!argument.IsGenericParameter)
{
Readers.GetReadFunc(argument);
Writers.GetWriteFunc(argument);
}
}
}
if (tr != null)
{
GenerateReadersAndWriters(tr.Resolve().BaseType);
}
}
public static bool WriteArguments(ILProcessor worker, MethodDefinition method, bool skipFirst)
{
// write each argument
// example result
/*
* writer.WritePackedInt32(someNumber);
* writer.WriteNetworkIdentity(someTarget);
*/
// arg of calling function, arg 0 is "this" so start counting at 1
int argNum = 1;
foreach (ParameterDefinition param in method.Parameters)
{
// NetworkConnection is not sent via the NetworkWriter so skip it here
// skip first for NetworkConnection in TargetRpc
if (argNum == 1 && skipFirst)
{
argNum += 1;
continue;
}
MethodReference writeFunc = Writers.GetWriteFunc(param.ParameterType);
if (writeFunc == null)
{
Weaver.Error($"{method.Name} has invalid parameter {param}", method);
return(false);
}
// use built-in writer func on writer object
// NetworkWriter object
worker.Append(worker.Create(OpCodes.Ldloc_0));
// add argument to call
worker.Append(worker.Create(OpCodes.Ldarg, argNum));
// call writer extension method
worker.Append(worker.Create(OpCodes.Call, writeFunc));
argNum += 1;
}
return(true);
}
private void GenerateReadersWriters(TypeReference parameterType, SequencePoint sequencePoint)
{
if (!parameterType.IsGenericParameter && parameterType.CanBeResolved())
{
TypeDefinition typeDefinition = parameterType.Resolve();
if (typeDefinition.IsClass && !typeDefinition.IsValueType)
{
MethodDefinition constructor = typeDefinition.GetMethod(".ctor");
bool hasAccess = constructor.IsPublic ||
constructor.IsAssembly && typeDefinition.Module == module;
if (!hasAccess)
{
return;
}
}
writers.GetWriteFunc(parameterType, sequencePoint);
readers.GetReadFunc(parameterType, sequencePoint);
}
}
private static void GenerateReadersWriters(ModuleDefinition module, TypeReference parameterType)
{
if (!parameterType.IsGenericParameter && parameterType.CanBeResolved())
{
TypeDefinition typeDefinition = parameterType.Resolve();
if (typeDefinition.IsClass && !typeDefinition.IsValueType)
{
MethodDefinition constructor = typeDefinition.GetMethod(".ctor");
bool hasAccess = constructor.IsPublic ||
constructor.IsAssembly && typeDefinition.Module == module;
if (!hasAccess)
{
return;
}
}
parameterType = module.ImportReference(parameterType);
Writers.GetWriteFunc(parameterType);
Readers.GetReadFunc(parameterType);
}
}
void GenerateSerialization()
{
Weaver.DLog(netBehaviourSubclass, " GenerateSerialization");
foreach (MethodDefinition m in netBehaviourSubclass.Methods)
{
if (m.Name == "OnSerialize")
{
return;
}
}
if (syncVars.Count == 0)
{
// no synvars, no need for custom OnSerialize
return;
}
MethodDefinition serialize = new MethodDefinition("OnSerialize",
MethodAttributes.Public | MethodAttributes.Virtual | MethodAttributes.HideBySig,
Weaver.boolType);
serialize.Parameters.Add(new ParameterDefinition("writer", ParameterAttributes.None, Weaver.CurrentAssembly.MainModule.ImportReference(Weaver.NetworkWriterType)));
serialize.Parameters.Add(new ParameterDefinition("forceAll", ParameterAttributes.None, Weaver.boolType));
ILProcessor serWorker = serialize.Body.GetILProcessor();
serialize.Body.InitLocals = true;
// loc_0, this local variable is to determine if any variable was dirty
VariableDefinition dirtyLocal = new VariableDefinition(Weaver.boolType);
serialize.Body.Variables.Add(dirtyLocal);
MethodReference baseSerialize = Resolvers.ResolveMethodInParents(netBehaviourSubclass.BaseType, Weaver.CurrentAssembly, "OnSerialize");
if (baseSerialize != null)
{
serWorker.Append(serWorker.Create(OpCodes.Ldarg_0)); // base
serWorker.Append(serWorker.Create(OpCodes.Ldarg_1)); // writer
serWorker.Append(serWorker.Create(OpCodes.Ldarg_2)); // forceAll
serWorker.Append(serWorker.Create(OpCodes.Call, baseSerialize));
serWorker.Append(serWorker.Create(OpCodes.Stloc_0)); // set dirtyLocal to result of base.OnSerialize()
}
// Generates: if (forceAll);
Instruction initialStateLabel = serWorker.Create(OpCodes.Nop);
serWorker.Append(serWorker.Create(OpCodes.Ldarg_2)); // forceAll
serWorker.Append(serWorker.Create(OpCodes.Brfalse, initialStateLabel));
foreach (FieldDefinition syncVar in syncVars)
{
// Generates a writer call for each sync variable
serWorker.Append(serWorker.Create(OpCodes.Ldarg_1)); // writer
serWorker.Append(serWorker.Create(OpCodes.Ldarg_0)); // this
serWorker.Append(serWorker.Create(OpCodes.Ldfld, syncVar));
MethodReference writeFunc = Writers.GetWriteFunc(syncVar.FieldType);
if (writeFunc != null)
{
serWorker.Append(serWorker.Create(OpCodes.Call, writeFunc));
}
else
{
Weaver.Error($"{syncVar} has unsupported type. Use a supported Mirror type instead");
return;
}
}
// always return true if forceAll
// Generates: return true
serWorker.Append(serWorker.Create(OpCodes.Ldc_I4_1));
serWorker.Append(serWorker.Create(OpCodes.Ret));
// Generates: end if (forceAll);
serWorker.Append(initialStateLabel);
// write dirty bits before the data fields
// Generates: writer.WritePackedUInt64 (base.get_syncVarDirtyBits ());
serWorker.Append(serWorker.Create(OpCodes.Ldarg_1)); // writer
serWorker.Append(serWorker.Create(OpCodes.Ldarg_0)); // base
serWorker.Append(serWorker.Create(OpCodes.Call, Weaver.NetworkBehaviourDirtyBitsReference));
serWorker.Append(serWorker.Create(OpCodes.Call, Writers.GetWriteFunc(Weaver.uint64Type)));
// generate a writer call for any dirty variable in this class
// start at number of syncvars in parent
int dirtyBit = Weaver.GetSyncVarStart(netBehaviourSubclass.BaseType.FullName);
foreach (FieldDefinition syncVar in syncVars)
{
Instruction varLabel = serWorker.Create(OpCodes.Nop);
// Generates: if ((base.get_syncVarDirtyBits() & 1uL) != 0uL)
serWorker.Append(serWorker.Create(OpCodes.Ldarg_0)); // base
serWorker.Append(serWorker.Create(OpCodes.Call, Weaver.NetworkBehaviourDirtyBitsReference));
serWorker.Append(serWorker.Create(OpCodes.Ldc_I8, 1L << dirtyBit)); // 8 bytes = long
serWorker.Append(serWorker.Create(OpCodes.And));
serWorker.Append(serWorker.Create(OpCodes.Brfalse, varLabel));
// Generates a call to the writer for that field
serWorker.Append(serWorker.Create(OpCodes.Ldarg_1)); // writer
serWorker.Append(serWorker.Create(OpCodes.Ldarg_0)); // base
serWorker.Append(serWorker.Create(OpCodes.Ldfld, syncVar));
MethodReference writeFunc = Writers.GetWriteFunc(syncVar.FieldType);
if (writeFunc != null)
{
serWorker.Append(serWorker.Create(OpCodes.Call, writeFunc));
}
else
{
Weaver.Error($"{syncVar} has unsupported type. Use a supported Mirror type instead");
return;
}
// something was dirty
serWorker.Append(serWorker.Create(OpCodes.Ldc_I4_1));
serWorker.Append(serWorker.Create(OpCodes.Stloc_0)); // set dirtyLocal to true
serWorker.Append(varLabel);
dirtyBit += 1;
}
if (Weaver.GenerateLogErrors)
{
serWorker.Append(serWorker.Create(OpCodes.Ldstr, "Injected Serialize " + netBehaviourSubclass.Name));
serWorker.Append(serWorker.Create(OpCodes.Call, Weaver.logErrorReference));
}
// generate: return dirtyLocal
serWorker.Append(serWorker.Create(OpCodes.Ldloc_0));
serWorker.Append(serWorker.Create(OpCodes.Ret));
netBehaviourSubclass.Methods.Add(serialize);
}
void GenerateSerialization(ref bool WeavingFailed)
{
const string SerializeMethodName = "SerializeSyncVars";
if (netBehaviourSubclass.GetMethod(SerializeMethodName) != null)
{
return;
}
if (syncVars.Count == 0)
{
// no synvars, no need for custom OnSerialize
return;
}
MethodDefinition serialize = new MethodDefinition(SerializeMethodName,
MethodAttributes.Public | MethodAttributes.Virtual | MethodAttributes.HideBySig,
weaverTypes.Import <bool>());
serialize.Parameters.Add(new ParameterDefinition("writer", ParameterAttributes.None, weaverTypes.Import <NetworkWriter>()));
serialize.Parameters.Add(new ParameterDefinition("forceAll", ParameterAttributes.None, weaverTypes.Import <bool>()));
ILProcessor worker = serialize.Body.GetILProcessor();
serialize.Body.InitLocals = true;
// loc_0, this local variable is to determine if any variable was dirty
VariableDefinition dirtyLocal = new VariableDefinition(weaverTypes.Import <bool>());
serialize.Body.Variables.Add(dirtyLocal);
MethodReference baseSerialize = Resolvers.TryResolveMethodInParents(netBehaviourSubclass.BaseType, assembly, SerializeMethodName);
if (baseSerialize != null)
{
// base
worker.Emit(OpCodes.Ldarg_0);
// writer
worker.Emit(OpCodes.Ldarg_1);
// forceAll
worker.Emit(OpCodes.Ldarg_2);
worker.Emit(OpCodes.Call, baseSerialize);
// set dirtyLocal to result of base.OnSerialize()
worker.Emit(OpCodes.Stloc_0);
}
// Generates: if (forceAll);
Instruction initialStateLabel = worker.Create(OpCodes.Nop);
// forceAll
worker.Emit(OpCodes.Ldarg_2);
worker.Emit(OpCodes.Brfalse, initialStateLabel);
foreach (FieldDefinition syncVarDef in syncVars)
{
FieldReference syncVar = syncVarDef;
if (netBehaviourSubclass.HasGenericParameters)
{
syncVar = syncVarDef.MakeHostInstanceGeneric();
}
// Generates a writer call for each sync variable
// writer
worker.Emit(OpCodes.Ldarg_1);
// this
worker.Emit(OpCodes.Ldarg_0);
worker.Emit(OpCodes.Ldfld, syncVar);
MethodReference writeFunc = writers.GetWriteFunc(syncVar.FieldType, ref WeavingFailed);
if (writeFunc != null)
{
worker.Emit(OpCodes.Call, writeFunc);
}
else
{
Log.Error($"{syncVar.Name} has unsupported type. Use a supported Mirror type instead", syncVar);
WeavingFailed = true;
return;
}
}
// always return true if forceAll
// Generates: return true
worker.Emit(OpCodes.Ldc_I4_1);
worker.Emit(OpCodes.Ret);
// Generates: end if (forceAll);
worker.Append(initialStateLabel);
// write dirty bits before the data fields
// Generates: writer.WritePackedUInt64 (base.get_syncVarDirtyBits ());
// writer
worker.Emit(OpCodes.Ldarg_1);
// base
worker.Emit(OpCodes.Ldarg_0);
worker.Emit(OpCodes.Call, weaverTypes.NetworkBehaviourDirtyBitsReference);
MethodReference writeUint64Func = writers.GetWriteFunc(weaverTypes.Import <ulong>(), ref WeavingFailed);
worker.Emit(OpCodes.Call, writeUint64Func);
// generate a writer call for any dirty variable in this class
// start at number of syncvars in parent
int dirtyBit = syncVarAccessLists.GetSyncVarStart(netBehaviourSubclass.BaseType.FullName);
foreach (FieldDefinition syncVarDef in syncVars)
{
FieldReference syncVar = syncVarDef;
if (netBehaviourSubclass.HasGenericParameters)
{
syncVar = syncVarDef.MakeHostInstanceGeneric();
}
Instruction varLabel = worker.Create(OpCodes.Nop);
// Generates: if ((base.get_syncVarDirtyBits() & 1uL) != 0uL)
// base
worker.Emit(OpCodes.Ldarg_0);
worker.Emit(OpCodes.Call, weaverTypes.NetworkBehaviourDirtyBitsReference);
// 8 bytes = long
worker.Emit(OpCodes.Ldc_I8, 1L << dirtyBit);
worker.Emit(OpCodes.And);
worker.Emit(OpCodes.Brfalse, varLabel);
// Generates a call to the writer for that field
// writer
worker.Emit(OpCodes.Ldarg_1);
// base
worker.Emit(OpCodes.Ldarg_0);
worker.Emit(OpCodes.Ldfld, syncVar);
MethodReference writeFunc = writers.GetWriteFunc(syncVar.FieldType, ref WeavingFailed);
if (writeFunc != null)
{
worker.Emit(OpCodes.Call, writeFunc);
}
else
{
Log.Error($"{syncVar.Name} has unsupported type. Use a supported Mirror type instead", syncVar);
WeavingFailed = true;
return;
}
// something was dirty
worker.Emit(OpCodes.Ldc_I4_1);
// set dirtyLocal to true
worker.Emit(OpCodes.Stloc_0);
worker.Append(varLabel);
dirtyBit += 1;
}
// add a log message if needed for debugging
//worker.Emit(OpCodes.Ldstr, $"Injected Serialize {netBehaviourSubclass.Name}");
//worker.Emit(OpCodes.Call, WeaverTypes.logErrorReference);
// generate: return dirtyLocal
worker.Emit(OpCodes.Ldloc_0);
worker.Emit(OpCodes.Ret);
netBehaviourSubclass.Methods.Add(serialize);
}
static void GenerateSerialization(TypeDefinition td)
{
Weaver.DLog(td, " GenerateSerialization");
foreach (MethodDefinition m in td.Methods)
{
if (m.Name == "Serialize")
{
return;
}
}
if (td.Fields.Count == 0)
{
return;
}
// check for self-referencing types
foreach (FieldDefinition field in td.Fields)
{
if (field.FieldType.FullName == td.FullName)
{
Weaver.Error("GenerateSerialization for " + td.Name + " [" + field.FullName + "]. [MessageBase] member cannot be self referencing.");
return;
}
}
MethodDefinition serializeFunc = new MethodDefinition("Serialize",
MethodAttributes.Public | MethodAttributes.Virtual | MethodAttributes.HideBySig,
Weaver.voidType);
serializeFunc.Parameters.Add(new ParameterDefinition("writer", ParameterAttributes.None, Weaver.CurrentAssembly.MainModule.ImportReference(Weaver.NetworkWriterType)));
ILProcessor serWorker = serializeFunc.Body.GetILProcessor();
foreach (FieldDefinition field in td.Fields)
{
if (field.IsStatic || field.IsPrivate || field.IsSpecialName)
{
continue;
}
if (field.FieldType.Resolve().HasGenericParameters)
{
Weaver.Error("GenerateSerialization for " + td.Name + " [" + field.FieldType + "/" + field.FieldType.FullName + "]. [MessageBase] member cannot have generic parameters.");
return;
}
if (field.FieldType.Resolve().IsInterface)
{
Weaver.Error("GenerateSerialization for " + td.Name + " [" + field.FieldType + "/" + field.FieldType.FullName + "]. [MessageBase] member cannot be an interface.");
return;
}
MethodReference writeFunc = Writers.GetWriteFunc(field.FieldType);
if (writeFunc != null)
{
serWorker.Append(serWorker.Create(OpCodes.Ldarg_1));
serWorker.Append(serWorker.Create(OpCodes.Ldarg_0));
serWorker.Append(serWorker.Create(OpCodes.Ldfld, field));
serWorker.Append(serWorker.Create(OpCodes.Call, writeFunc));
}
else
{
Weaver.Error("GenerateSerialization for " + td.Name + " unknown type [" + field.FieldType + "/" + field.FieldType.FullName + "]. [MessageBase] member variables must be basic types.");
return;
}
}
serWorker.Append(serWorker.Create(OpCodes.Ret));
td.Methods.Add(serializeFunc);
}
static void GenerateSerialization(TypeDefinition td)
{
Weaver.DLog(td, " GenerateSerialization");
foreach (MethodDefinition m in td.Methods)
{
if (m.Name == "Serialize")
{
return;
}
}
if (td.Fields.Count == 0)
{
return;
}
// check for self-referencing types
foreach (FieldDefinition field in td.Fields)
{
if (field.FieldType.FullName == td.FullName)
{
Weaver.Error($"{td} has field ${field} that references itself");
return;
}
}
MethodDefinition serializeFunc = new MethodDefinition("Serialize",
MethodAttributes.Public | MethodAttributes.Virtual | MethodAttributes.HideBySig,
Weaver.voidType);
serializeFunc.Parameters.Add(new ParameterDefinition("writer", ParameterAttributes.None, Weaver.CurrentAssembly.MainModule.ImportReference(Weaver.NetworkWriterType)));
ILProcessor serWorker = serializeFunc.Body.GetILProcessor();
foreach (FieldDefinition field in td.Fields)
{
if (field.IsStatic || field.IsPrivate || field.IsSpecialName)
{
continue;
}
if (field.FieldType.Resolve().HasGenericParameters&& !field.FieldType.FullName.StartsWith("System.ArraySegment`1", System.StringComparison.Ordinal))
{
Weaver.Error($"{field} cannot have generic type {field.FieldType}. Consider creating a class that derives the generic type");
return;
}
if (field.FieldType.Resolve().IsInterface)
{
Weaver.Error($"{field} has unsupported type. Use a concrete class instead of interface {field.FieldType}");
return;
}
MethodReference writeFunc = Writers.GetWriteFunc(field.FieldType);
if (writeFunc != null)
{
serWorker.Append(serWorker.Create(OpCodes.Ldarg_1));
serWorker.Append(serWorker.Create(OpCodes.Ldarg_0));
serWorker.Append(serWorker.Create(OpCodes.Ldfld, field));
serWorker.Append(serWorker.Create(OpCodes.Call, writeFunc));
}
else
{
Weaver.Error($"{field} has unsupported type");
return;
}
}
serWorker.Append(serWorker.Create(OpCodes.Ret));
td.Methods.Add(serializeFunc);
}
static void GenerateSerialization(TypeDefinition td)
{
Weaver.DLog(td, " GenerateSerialization");
MethodDefinition existingMethod = td.Methods.FirstOrDefault(md => md.Name == "Serialize");
if (existingMethod != null && !existingMethod.Body.IsEmptyDefault())
{
return;
}
if (td.Fields.Count == 0)
{
return;
}
// check for self-referencing types
foreach (FieldDefinition field in td.Fields)
{
if (field.FieldType.FullName == td.FullName)
{
Weaver.Error($"{td} has field ${field} that references itself");
return;
}
}
MethodDefinition serializeFunc = existingMethod ?? new MethodDefinition("Serialize",
MethodAttributes.Public | MethodAttributes.Virtual | MethodAttributes.HideBySig,
Weaver.voidType);
if (existingMethod == null) //only add to new method
{
serializeFunc.Parameters.Add(new ParameterDefinition("writer", ParameterAttributes.None, Weaver.CurrentAssembly.MainModule.ImportReference(Weaver.NetworkWriterType)));
}
ILProcessor serWorker = serializeFunc.Body.GetILProcessor();
if (existingMethod != null)
{
serWorker.Body.Instructions.Clear(); //remove default nop&ret from existing empty interface method
}
if (!td.IsValueType) //if not struct(IMessageBase), likely same as using else {} here in all cases
{
// call base
MethodReference baseSerialize = Resolvers.ResolveMethodInParents(td.BaseType, Weaver.CurrentAssembly, "Serialize");
if (baseSerialize != null)
{
serWorker.Append(serWorker.Create(OpCodes.Ldarg_0)); // base
serWorker.Append(serWorker.Create(OpCodes.Ldarg_1)); // writer
serWorker.Append(serWorker.Create(OpCodes.Call, baseSerialize));
}
}
foreach (FieldDefinition field in td.Fields)
{
if (field.IsStatic || field.IsPrivate || field.IsSpecialName)
{
continue;
}
MethodReference writeFunc = Writers.GetWriteFunc(field.FieldType);
if (writeFunc != null)
{
serWorker.Append(serWorker.Create(OpCodes.Ldarg_1));
serWorker.Append(serWorker.Create(OpCodes.Ldarg_0));
serWorker.Append(serWorker.Create(OpCodes.Ldfld, field));
serWorker.Append(serWorker.Create(OpCodes.Call, writeFunc));
}
else
{
Weaver.Error($"{field} has unsupported type");
return;
}
}
serWorker.Append(serWorker.Create(OpCodes.Ret));
if (existingMethod == null) //only add if not just replaced body
{
td.Methods.Add(serializeFunc);
}
}
