MessageClassProcessor.cs
5.66 KB
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using System;
using Mono.Cecil;
using Mono.Cecil.Cil;
namespace Unity.UNetWeaver
{
class MessageClassProcessor
{
TypeDefinition m_td;
Weaver m_Weaver;
public MessageClassProcessor(TypeDefinition td, Weaver weaver)
{
m_td = td;
m_Weaver = weaver;
m_Weaver.DLog(td, "MessageClassProcessor for " + td.Name);
}
public void Process()
{
m_Weaver.DLog(m_td, "MessageClassProcessor Start");
m_Weaver.ResetRecursionCount();
GenerateSerialization();
if (m_Weaver.fail)
{
return;
}
GenerateDeSerialization();
m_Weaver.DLog(m_td, "MessageClassProcessor Done");
}
void GenerateSerialization()
{
m_Weaver.DLog(m_td, " GenerateSerialization");
foreach (var m in m_td.Methods)
{
if (m.Name == "Serialize")
return;
}
if (m_td.Fields.Count == 0)
{
return;
}
// check for self-referencing types
foreach (var field in m_td.Fields)
{
if (field.FieldType.FullName == m_td.FullName)
{
m_Weaver.fail = true;
Log.Error("GenerateSerialization for " + m_td.Name + " [" + field.FullName + "]. [MessageBase] member cannot be self referencing.");
return;
}
}
MethodDefinition serializeFunc = new MethodDefinition("Serialize", MethodAttributes.Public |
MethodAttributes.Virtual |
MethodAttributes.HideBySig,
m_Weaver.voidType);
serializeFunc.Parameters.Add(new ParameterDefinition("writer", ParameterAttributes.None, m_Weaver.m_ScriptDef.MainModule.ImportReference(m_Weaver.NetworkWriterType)));
ILProcessor serWorker = serializeFunc.Body.GetILProcessor();
foreach (var field in m_td.Fields)
{
if (field.IsStatic || field.IsPrivate || field.IsSpecialName)
continue;
if (field.FieldType.Resolve().HasGenericParameters)
{
m_Weaver.fail = true;
Log.Error("GenerateSerialization for " + m_td.Name + " [" + field.FieldType + "/" + field.FieldType.FullName + "]. [MessageBase] member cannot have generic parameters.");
return;
}
if (field.FieldType.Resolve().IsInterface)
{
m_Weaver.fail = true;
Log.Error("GenerateSerialization for " + m_td.Name + " [" + field.FieldType + "/" + field.FieldType.FullName + "]. [MessageBase] member cannot be an interface.");
return;
}
MethodReference writeFunc = m_Weaver.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
{
m_Weaver.fail = true;
Log.Error("GenerateSerialization for " + m_td.Name + " unknown type [" + field.FieldType + "/" + field.FieldType.FullName + "]. [MessageBase] member variables must be basic types.");
return;
}
}
serWorker.Append(serWorker.Create(OpCodes.Ret));
m_td.Methods.Add(serializeFunc);
}
void GenerateDeSerialization()
{
m_Weaver.DLog(m_td, " GenerateDeserialization");
foreach (var m in m_td.Methods)
{
if (m.Name == "Deserialize")
return;
}
if (m_td.Fields.Count == 0)
{
return;
}
MethodDefinition serializeFunc = new MethodDefinition("Deserialize", MethodAttributes.Public |
MethodAttributes.Virtual |
MethodAttributes.HideBySig,
m_Weaver.voidType);
serializeFunc.Parameters.Add(new ParameterDefinition("reader", ParameterAttributes.None, m_Weaver.m_ScriptDef.MainModule.ImportReference(m_Weaver.NetworkReaderType)));
ILProcessor serWorker = serializeFunc.Body.GetILProcessor();
foreach (var field in m_td.Fields)
{
if (field.IsStatic || field.IsPrivate || field.IsSpecialName)
continue;
MethodReference readerFunc = m_Weaver.GetReadFunc(field.FieldType);
if (readerFunc != null)
{
serWorker.Append(serWorker.Create(OpCodes.Ldarg_0));
serWorker.Append(serWorker.Create(OpCodes.Ldarg_1));
serWorker.Append(serWorker.Create(OpCodes.Call, readerFunc));
serWorker.Append(serWorker.Create(OpCodes.Stfld, field));
}
else
{
m_Weaver.fail = true;
Log.Error("GenerateDeSerialization for " + m_td.Name + " unknown type [" + field.FieldType + "]. [SyncVar] member variables must be basic types.");
return;
}
}
serWorker.Append(serWorker.Create(OpCodes.Ret));
m_td.Methods.Add(serializeFunc);
}
}
}