static MethodDefinition GenerateClassOrStructReadFunction(TypeReference variable, int recursionCount)
{
if (recursionCount > MaxRecursionCount)
{
Weaver.Error($"{variable} can't be deserialized because it references itself");
return(null);
}
if (!Weaver.IsValidTypeToGenerate(variable.Resolve()))
{
return(null);
}
string functionName = "_Read" + variable.Name + "_";
if (variable.DeclaringType != null)
{
functionName += variable.DeclaringType.Name;
}
else
{
functionName += "None";
}
// create new reader for this type
var readerFunc = new MethodDefinition(functionName,
MethodAttributes.Public |
MethodAttributes.Static |
MethodAttributes.HideBySig,
variable);
// create local for return value
readerFunc.Body.Variables.Add(new VariableDefinition(variable));
readerFunc.Body.InitLocals = true;
readerFunc.Parameters.Add(new ParameterDefinition("reader", ParameterAttributes.None, Weaver.CurrentAssembly.MainModule.ImportReference(Weaver.NetworkReaderType)));
ILProcessor worker = readerFunc.Body.GetILProcessor();
TypeDefinition td = variable.Resolve();
CreateNew(variable, worker, td);
DeserializeFields(variable, recursionCount, worker);
worker.Append(worker.Create(OpCodes.Ldloc_0));
worker.Append(worker.Create(OpCodes.Ret));
return(readerFunc);
}
static MethodDefinition GenerateClassOrStructReadFunction(TypeReference variable, int recursionCount)
{
if (recursionCount > MaxRecursionCount)
{
Weaver.Error($"{variable} can't be deserialized because it references itself");
return(null);
}
if (!Weaver.IsValidTypeToGenerate(variable.Resolve()))
{
return(null);
}
string functionName = "_Read" + variable.Name + "_";
if (variable.DeclaringType != null)
{
functionName += variable.DeclaringType.Name;
}
else
{
functionName += "None";
}
// create new reader for this type
MethodDefinition readerFunc = new MethodDefinition(functionName,
MethodAttributes.Public |
MethodAttributes.Static |
MethodAttributes.HideBySig,
variable);
// create local for return value
readerFunc.Body.Variables.Add(new VariableDefinition(variable));
readerFunc.Body.InitLocals = true;
readerFunc.Parameters.Add(new ParameterDefinition("reader", ParameterAttributes.None, Weaver.CurrentAssembly.MainModule.ImportReference(Weaver.NetworkReaderType)));
ILProcessor worker = readerFunc.Body.GetILProcessor();
if (variable.IsValueType)
{
// structs are created with Initobj
worker.Append(worker.Create(OpCodes.Ldloca, 0));
worker.Append(worker.Create(OpCodes.Initobj, variable));
}
else
{
// classes are created with their constructor
MethodDefinition ctor = Resolvers.ResolveDefaultPublicCtor(variable);
if (ctor == null)
{
Weaver.Error($"{variable} can't be deserialized bcause i has no default constructor");
return(null);
}
worker.Append(worker.Create(OpCodes.Newobj, ctor));
worker.Append(worker.Create(OpCodes.Stloc_0));
}
uint fields = 0;
foreach (FieldDefinition field in variable.Resolve().Fields)
{
if (field.IsStatic || field.IsPrivate)
{
continue;
}
// mismatched ldloca/ldloc for struct/class combinations is invalid IL, which causes crash at runtime
OpCode opcode = variable.IsValueType ? OpCodes.Ldloca : OpCodes.Ldloc;
worker.Append(worker.Create(opcode, 0));
MethodReference readFunc = GetReadFunc(field.FieldType, recursionCount + 1);
if (readFunc != null)
{
worker.Append(worker.Create(OpCodes.Ldarg_0));
worker.Append(worker.Create(OpCodes.Call, readFunc));
}
else
{
Weaver.Error($"{field} has an unsupported type");
return(null);
}
worker.Append(worker.Create(OpCodes.Stfld, field));
fields++;
}
if (fields == 0)
{
Log.Warning($"{variable} has no public or non-static fields to deserialize");
}
worker.Append(worker.Create(OpCodes.Ldloc_0));
worker.Append(worker.Create(OpCodes.Ret));
return(readerFunc);
}
static MethodDefinition GenerateStructWriterFunction(TypeReference variable, int recursionCount)
{
if (recursionCount > MaxRecursionCount)
{
Weaver.Error($"{variable} can't be serialized because it references itself");
return(null);
}
if (!Weaver.IsValidTypeToGenerate(variable.Resolve()))
{
return(null);
}
string functionName = "_Write" + variable.Name + "_";
if (variable.DeclaringType != null)
{
functionName += variable.DeclaringType.Name;
}
else
{
functionName += "None";
}
// create new writer for this type
MethodDefinition writerFunc = new MethodDefinition(functionName,
MethodAttributes.Public |
MethodAttributes.Static |
MethodAttributes.HideBySig,
Weaver.voidType);
writerFunc.Parameters.Add(new ParameterDefinition("writer", ParameterAttributes.None, Weaver.CurrentAssembly.MainModule.ImportReference(Weaver.NetworkWriterType)));
writerFunc.Parameters.Add(new ParameterDefinition("value", ParameterAttributes.None, Weaver.CurrentAssembly.MainModule.ImportReference(variable)));
ILProcessor worker = writerFunc.Body.GetILProcessor();
uint fields = 0;
foreach (FieldDefinition field in variable.Resolve().Fields)
{
if (field.IsStatic || field.IsPrivate)
{
continue;
}
if (field.FieldType.Resolve().HasGenericParameters)
{
Weaver.Error($"{field} has unsupported type. Create a derived class instead of using generics");
return(null);
}
if (field.FieldType.Resolve().IsInterface)
{
Weaver.Error($"{field} has unsupported type. Use a concrete class instead of an interface");
return(null);
}
MethodReference writeFunc = GetWriteFunc(field.FieldType, recursionCount + 1);
if (writeFunc != null)
{
fields++;
worker.Append(worker.Create(OpCodes.Ldarg_0));
worker.Append(worker.Create(OpCodes.Ldarg_1));
worker.Append(worker.Create(OpCodes.Ldfld, field));
worker.Append(worker.Create(OpCodes.Call, writeFunc));
}
else
{
Weaver.Error($"{field} has unsupported type. Use a type supported by Mirror instead");
return(null);
}
}
if (fields == 0)
{
Log.Warning($" {variable} has no no public or non-static fields to serialize");
}
worker.Append(worker.Create(OpCodes.Ret));
return(writerFunc);
}
static MethodDefinition GenerateStructWriterFunction(TypeReference variable, int recursionCount)
{
if (!Weaver.IsValidTypeToGenerate(variable.Resolve()))
{
return(null);
}
string functionName = "_Write" + variable.Name + "_";
if (variable.DeclaringType != null)
{
functionName += variable.DeclaringType.Name;
}
else
{
functionName += "None";
}
// create new writer for this type
MethodDefinition writerFunc = new MethodDefinition(functionName,
MethodAttributes.Public |
MethodAttributes.Static |
MethodAttributes.HideBySig,
Weaver.voidType);
writerFunc.Parameters.Add(new ParameterDefinition("writer", ParameterAttributes.None, Weaver.CurrentAssembly.MainModule.ImportReference(Weaver.NetworkWriterType)));
writerFunc.Parameters.Add(new ParameterDefinition("value", ParameterAttributes.None, Weaver.CurrentAssembly.MainModule.ImportReference(variable)));
ILProcessor worker = writerFunc.Body.GetILProcessor();
uint fields = 0;
foreach (FieldDefinition field in variable.Resolve().Fields)
{
if (field.IsStatic || field.IsPrivate)
{
continue;
}
if (field.FieldType.Resolve().HasGenericParameters)
{
Weaver.Error("WriteReadFunc for " + field.Name + " [" + field.FieldType + "/" + field.FieldType.FullName + "]. Cannot have generic parameters.");
return(null);
}
if (field.FieldType.Resolve().IsInterface)
{
Weaver.Error("WriteReadFunc for " + field.Name + " [" + field.FieldType + "/" + field.FieldType.FullName + "]. Cannot be an interface.");
return(null);
}
MethodReference writeFunc = GetWriteFunc(field.FieldType, recursionCount + 1);
if (writeFunc != null)
{
fields++;
worker.Append(worker.Create(OpCodes.Ldarg_0));
worker.Append(worker.Create(OpCodes.Ldarg_1));
worker.Append(worker.Create(OpCodes.Ldfld, field));
worker.Append(worker.Create(OpCodes.Call, writeFunc));
}
else
{
Weaver.Error("WriteReadFunc for " + field.Name + " type " + field.FieldType + " no supported");
return(null);
}
}
if (fields == 0)
{
Log.Warning("The class / struct " + variable.Name + " has no public or non-static fields to serialize");
}
worker.Append(worker.Create(OpCodes.Ret));
return(writerFunc);
}
