// Initialize the local variable with a new instance
static void CreateNew(TypeReference variable, ILProcessor worker, TypeDefinition td)
{
if (variable.IsValueType)
{
// structs are created with Initobj
worker.Append(worker.Create(OpCodes.Ldloca, 0));
worker.Append(worker.Create(OpCodes.Initobj, variable));
}
else if (td.IsDerivedFrom <UnityEngine.ScriptableObject>())
{
GenericInstanceMethod genericInstanceMethod = new GenericInstanceMethod(WeaverTypes.ScriptableObjectCreateInstanceMethod);
genericInstanceMethod.GenericArguments.Add(variable);
worker.Append(worker.Create(OpCodes.Call, genericInstanceMethod));
worker.Append(worker.Create(OpCodes.Stloc_0));
}
else
{
// classes are created with their constructor
MethodDefinition ctor = Resolvers.ResolveDefaultPublicCtor(variable);
if (ctor == null)
{
Weaver.Error($"{variable.Name} can't be deserialized because it has no default constructor", variable);
return;
}
MethodReference ctorRef = Weaver.CurrentAssembly.MainModule.ImportReference(ctor);
worker.Append(worker.Create(OpCodes.Newobj, ctorRef));
worker.Append(worker.Create(OpCodes.Stloc_0));
}
}
// Initialize the local variable with a new instance
void CreateNew(TypeReference variable, ILProcessor worker, TypeDefinition td, ref bool WeavingFailed)
{
if (variable.IsValueType)
{
// structs are created with Initobj
worker.Emit(OpCodes.Ldloca, 0);
worker.Emit(OpCodes.Initobj, variable);
}
else if (td.IsDerivedFrom <UnityEngine.ScriptableObject>())
{
GenericInstanceMethod genericInstanceMethod = new GenericInstanceMethod(weaverTypes.ScriptableObjectCreateInstanceMethod);
genericInstanceMethod.GenericArguments.Add(variable);
worker.Emit(OpCodes.Call, genericInstanceMethod);
worker.Emit(OpCodes.Stloc_0);
}
else
{
// classes are created with their constructor
MethodDefinition ctor = Resolvers.ResolveDefaultPublicCtor(variable);
if (ctor == null)
{
Log.Error($"{variable.Name} can't be deserialized because it has no default constructor. Don't use {variable.Name} in [SyncVar]s, Rpcs, Cmds, etc.", variable);
WeavingFailed = true;
return;
}
MethodReference ctorRef = assembly.MainModule.ImportReference(ctor);
worker.Emit(OpCodes.Newobj, ctorRef);
worker.Emit(OpCodes.Stloc_0);
}
}
// Initialize the local variable with a new instance
private static void CreateNew(TypeReference variable, ILProcessor worker, TypeDefinition td)
{
if (variable.IsValueType)
{
// structs are created with Initobj
worker.Append(worker.Create(OpCodes.Ldloca, 0));
worker.Append(worker.Create(OpCodes.Initobj, variable));
}
else if (td.IsDerivedFrom(Weaver.ScriptableObjectType))
{
var genericInstanceMethod = new GenericInstanceMethod(Weaver.ScriptableObjectCreateInstanceMethod);
genericInstanceMethod.GenericArguments.Add(variable);
worker.Append(worker.Create(OpCodes.Call, genericInstanceMethod));
worker.Append(worker.Create(OpCodes.Stloc_0));
}
else
{
// classes are created with their constructor
MethodDefinition ctor = Resolvers.ResolveDefaultPublicCtor(variable);
if (ctor == null)
{
Weaver.Error($"{variable} can't be deserialized because i has no default constructor");
}
worker.Append(worker.Create(OpCodes.Newobj, ctor));
worker.Append(worker.Create(OpCodes.Stloc_0));
}
}
static MethodDefinition GenerateClassOrStructReadFunction(TypeReference variable, int recursionCount)
{
if (recursionCount > MaxRecursionCount)
{
Weaver.Error($"{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);
}