// we need to inject several initializations into NetworkBehaviour ctor
void InjectIntoInstanceConstructor(ref bool WeavingFailed)
{
if (syncObjects.Count == 0)
{
return;
}
// find instance constructor
MethodDefinition ctor = netBehaviourSubclass.GetMethod(".ctor");
if (ctor == null)
{
Log.Error($"{netBehaviourSubclass.Name} has invalid constructor", netBehaviourSubclass);
WeavingFailed = true;
return;
}
// remove the return opcode from end of function. will add our own later.
if (!RemoveFinalRetInstruction(ctor))
{
Log.Error($"{netBehaviourSubclass.Name} has invalid constructor", ctor);
WeavingFailed = true;
return;
}
ILProcessor ctorWorker = ctor.Body.GetILProcessor();
// initialize all sync objects in ctor
foreach (FieldDefinition fd in syncObjects)
{
SyncObjectInitializer.GenerateSyncObjectInitializer(ctorWorker, weaverTypes, fd);
}
// add final 'Ret' instruction to ctor
ctorWorker.Append(ctorWorker.Create(OpCodes.Ret));
}
void GenerateConstants()
{
if (commands.Count == 0 && clientRpcs.Count == 0 && targetRpcs.Count == 0 && eventRpcs.Count == 0 && syncObjects.Count == 0)
{
return;
}
Weaver.DLog(netBehaviourSubclass, " GenerateConstants ");
// find static constructor
MethodDefinition cctor = null;
bool cctorFound = false;
foreach (MethodDefinition md in netBehaviourSubclass.Methods)
{
if (md.Name == ".cctor")
{
cctor = md;
cctorFound = true;
}
}
if (cctor != null)
{
// remove the return opcode from end of function. will add our own later.
if (cctor.Body.Instructions.Count != 0)
{
Instruction ret = cctor.Body.Instructions[cctor.Body.Instructions.Count - 1];
if (ret.OpCode == OpCodes.Ret)
{
cctor.Body.Instructions.RemoveAt(cctor.Body.Instructions.Count - 1);
}
else
{
Weaver.Error($"{netBehaviourSubclass} has invalid class constructor");
return;
}
}
}
else
{
// make one!
cctor = new MethodDefinition(".cctor", MethodAttributes.Private |
MethodAttributes.HideBySig |
MethodAttributes.SpecialName |
MethodAttributes.RTSpecialName |
MethodAttributes.Static,
Weaver.voidType);
}
// find instance constructor
MethodDefinition ctor = null;
foreach (MethodDefinition md in netBehaviourSubclass.Methods)
{
if (md.Name == ".ctor")
{
ctor = md;
Instruction ret = ctor.Body.Instructions[ctor.Body.Instructions.Count - 1];
if (ret.OpCode == OpCodes.Ret)
{
ctor.Body.Instructions.RemoveAt(ctor.Body.Instructions.Count - 1);
}
else
{
Weaver.Error($"{netBehaviourSubclass} has invalid constructor");
return;
}
break;
}
}
if (ctor == null)
{
Weaver.Error($"{netBehaviourSubclass} has invalid constructor");
return;
}
ILProcessor ctorWorker = ctor.Body.GetILProcessor();
ILProcessor cctorWorker = cctor.Body.GetILProcessor();
for (int i = 0; i < commands.Count; ++i)
{
GenerateRegisterCommandDelegate(cctorWorker, Weaver.registerCommandDelegateReference, commandInvocationFuncs[i], commands[i].Name);
}
for (int i = 0; i < clientRpcs.Count; ++i)
{
GenerateRegisterCommandDelegate(cctorWorker, Weaver.registerRpcDelegateReference, clientRpcInvocationFuncs[i], clientRpcs[i].Name);
}
for (int i = 0; i < targetRpcs.Count; ++i)
{
GenerateRegisterCommandDelegate(cctorWorker, Weaver.registerRpcDelegateReference, targetRpcInvocationFuncs[i], targetRpcs[i].Name);
}
for (int i = 0; i < eventRpcs.Count; ++i)
{
GenerateRegisterCommandDelegate(cctorWorker, Weaver.registerEventDelegateReference, eventRpcInvocationFuncs[i], eventRpcs[i].Name);
}
foreach (FieldDefinition fd in syncObjects)
{
SyncObjectInitializer.GenerateSyncObjectInitializer(ctorWorker, fd);
}
cctorWorker.Append(cctorWorker.Create(OpCodes.Ret));
if (!cctorFound)
{
netBehaviourSubclass.Methods.Add(cctor);
}
// finish ctor
ctorWorker.Append(ctorWorker.Create(OpCodes.Ret));
// in case class had no cctor, it might have BeforeFieldInit, so injected cctor would be called too late
netBehaviourSubclass.Attributes &= ~TypeAttributes.BeforeFieldInit;
}
void GenerateConstants()
{
if (commands.Count == 0 && clientRpcs.Count == 0 && targetRpcs.Count == 0 && syncObjects.Count == 0)
{
return;
}
Weaver.DLog(netBehaviourSubclass, " GenerateConstants ");
// find static constructor
MethodDefinition cctor = netBehaviourSubclass.GetMethod(".cctor");
bool cctorFound = cctor != null;
if (cctor != null)
{
// remove the return opcode from end of function. will add our own later.
if (cctor.Body.Instructions.Count != 0)
{
Instruction retInstr = cctor.Body.Instructions[cctor.Body.Instructions.Count - 1];
if (retInstr.OpCode == OpCodes.Ret)
{
cctor.Body.Instructions.RemoveAt(cctor.Body.Instructions.Count - 1);
}
else
{
Weaver.Error($"{netBehaviourSubclass.Name} has invalid class constructor", cctor);
return;
}
}
}
else
{
// make one!
cctor = new MethodDefinition(".cctor", MethodAttributes.Private |
MethodAttributes.HideBySig |
MethodAttributes.SpecialName |
MethodAttributes.RTSpecialName |
MethodAttributes.Static,
WeaverTypes.Import(typeof(void)));
}
// find instance constructor
MethodDefinition ctor = netBehaviourSubclass.GetMethod(".ctor");
if (ctor == null)
{
Weaver.Error($"{netBehaviourSubclass.Name} has invalid constructor", netBehaviourSubclass);
return;
}
Instruction ret = ctor.Body.Instructions[ctor.Body.Instructions.Count - 1];
if (ret.OpCode == OpCodes.Ret)
{
ctor.Body.Instructions.RemoveAt(ctor.Body.Instructions.Count - 1);
}
else
{
Weaver.Error($"{netBehaviourSubclass.Name} has invalid constructor", ctor);
return;
}
// TODO: find out if the order below matters. If it doesn't split code below into 2 functions
ILProcessor ctorWorker = ctor.Body.GetILProcessor();
ILProcessor cctorWorker = cctor.Body.GetILProcessor();
for (int i = 0; i < commands.Count; ++i)
{
CmdResult cmdResult = commands[i];
GenerateRegisterCommandDelegate(cctorWorker, WeaverTypes.registerCommandDelegateReference, commandInvocationFuncs[i], cmdResult);
}
for (int i = 0; i < clientRpcs.Count; ++i)
{
ClientRpcResult clientRpcResult = clientRpcs[i];
GenerateRegisterRemoteDelegate(cctorWorker, WeaverTypes.registerRpcDelegateReference, clientRpcInvocationFuncs[i], clientRpcResult.method.Name);
}
for (int i = 0; i < targetRpcs.Count; ++i)
{
GenerateRegisterRemoteDelegate(cctorWorker, WeaverTypes.registerRpcDelegateReference, targetRpcInvocationFuncs[i], targetRpcs[i].Name);
}
foreach (FieldDefinition fd in syncObjects)
{
SyncObjectInitializer.GenerateSyncObjectInitializer(ctorWorker, fd);
}
cctorWorker.Append(cctorWorker.Create(OpCodes.Ret));
if (!cctorFound)
{
netBehaviourSubclass.Methods.Add(cctor);
}
// finish ctor
ctorWorker.Append(ctorWorker.Create(OpCodes.Ret));
// in case class had no cctor, it might have BeforeFieldInit, so injected cctor would be called too late
netBehaviourSubclass.Attributes &= ~TypeAttributes.BeforeFieldInit;
}
