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fix: ClientRPC should skip first arg only if set as Connection (#315)
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* fix: (Weaver)ClientRPC should skip first arg only if set as Connection

* rename var
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Lymdun committed Jul 31, 2020
1 parent b4d65a7 commit 168e622
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Showing 4 changed files with 9 additions and 10 deletions.
Original file line number Diff line number Diff line change
Expand Up @@ -779,17 +779,14 @@ void GenerateDeSerialization()
netBehaviourSubclass.Methods.Add(serialize);
}

public static bool ReadArguments(MethodDefinition method, ILProcessor worker, RemoteCallType callType)
public static bool ReadArguments(MethodDefinition method, ILProcessor worker, bool skipFirst)
{
// read each argument
// example result
/*
CallCmdDoSomething(reader.ReadPackedInt32(), reader.ReadNetworkIdentity());
*/

bool skipFirst = callType == RemoteCallType.ClientRpc
&& RpcProcessor.HasNetworkConnectionParameter(method);

// arg of calling function, arg 0 is "this" so start counting at 1
int argNum = 1;
foreach (ParameterDefinition param in method.Parameters)
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10 changes: 6 additions & 4 deletions Assets/Mirror/Editor/Weaver/Processors/RpcProcessor.cs
Original file line number Diff line number Diff line change
Expand Up @@ -53,15 +53,17 @@ public static MethodDefinition GenerateSkeleton(MethodDefinition md, MethodDefin
worker.Append(worker.Create(OpCodes.Castclass, md.DeclaringType));

// NetworkConnection parameter is only required for Client.Connection
Client target = clientRpcAttr.GetField("target", Client.Observers);
if (target == Client.Connection && HasNetworkConnectionParameter(md))
Client target = clientRpcAttr.GetField("target", Client.Observers);
bool hasNetworkConnection = target == Client.Connection && HasNetworkConnectionParameter(md);

if (hasNetworkConnection)
{
//client.connection
worker.Append(worker.Create(OpCodes.Ldarg_0));
worker.Append(worker.Create(OpCodes.Call, Weaver.BehaviorConnectionToServerReference));
}

if (!NetworkBehaviourProcessor.ReadArguments(md, worker, RemoteCallType.ClientRpc))
if (!NetworkBehaviourProcessor.ReadArguments(md, worker, hasNetworkConnection))
return null;

// invoke actual ServerRpc function
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Original file line number Diff line number Diff line change
Expand Up @@ -111,7 +111,7 @@ public static MethodDefinition GenerateSkeleton(MethodDefinition method, MethodD
worker.Append(worker.Create(OpCodes.Ldarg_0));
worker.Append(worker.Create(OpCodes.Castclass, method.DeclaringType));

if (!NetworkBehaviourProcessor.ReadArguments(method, worker, RemoteCallType.ServerRpc))
if (!NetworkBehaviourProcessor.ReadArguments(method, worker, false))
return null;

AddSenderConnection(method, worker);
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Original file line number Diff line number Diff line change
Expand Up @@ -53,7 +53,7 @@ public static MethodDefinition ProcessEventInvoke(TypeDefinition td, EventDefini

// read the event arguments
MethodReference invoke = Resolvers.ResolveMethod(eventField.FieldType, Weaver.CurrentAssembly, "Invoke");
if (!NetworkBehaviourProcessor.ReadArguments(invoke.Resolve(), worker, RemoteCallType.SyncEvent))
if (!NetworkBehaviourProcessor.ReadArguments(invoke.Resolve(), worker, false))
return null;

// invoke actual event delegate function
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