private void EmitFieldsAssignmentLoop(ILProcessor ilProcessor, VariableDefinition resultVar,
VariableDefinition fieldCountVar, ParameterDefinition readerParam, TypeDefinition resolved)
{
var iterationVar = ilProcessor.AddVariable(_mainModule.TypeSystem.Int32);
var fieldNameVar = ilProcessor.AddVariable(_mainModule.TypeSystem.String);
var tempstr1 = ilProcessor.AddVariable(_mainModule.TypeSystem.String);
var switchFieldVar = ilProcessor.AddVariable(_mainModule.TypeSystem.String);
ilProcessor.For(0, fieldCountVar, 1).Then(() =>
{
ilProcessor.CallMethod(readerParam, _typeHelper.MsgPackReader.ReadString).Store(fieldNameVar);
var switchStatement = ilProcessor.Switch(fieldNameVar);
foreach (var field in resolved.Fields)
{
switchStatement.Case(field.Name, () =>
{
if (resolved.IsValueType)
{
ilProcessor.Emit(OpCodes.Ldloca, resultVar);
}
else
{
ilProcessor.Emit(OpCodes.Ldloc, resultVar);
}
var deserializationMethod = GetTypeDeserializationMethod(field.FieldType);
ilProcessor.Emit(OpCodes.Ldarg, readerParam);
ilProcessor.Emit(OpCodes.Call, deserializationMethod);
ilProcessor.Emit(OpCodes.Stfld, field);
});
}
});
}
private void BuildDeserializeComplexClassBody(ILProcessor ilProcessor,
ParameterDefinition readerParam, TypeDefinition resolved)
{
var resultVar = ilProcessor.AddVariable(resolved);
var fieldCountVar = ilProcessor.AddVariable(_mainModule.TypeSystem.Int32);
Instruction retInstr = Instruction.Create(OpCodes.Ret);
if (resolved.IsValueType)
{
ilProcessor.Emit(OpCodes.Ldloca_S, resultVar);
ilProcessor.Emit(OpCodes.Initobj, resolved);
var mapTempVar = ilProcessor.AddVariable(_mainModule.TypeSystem.Boolean);
ilProcessor.Emit(OpCodes.Ldarg, readerParam);
ilProcessor.Emit(OpCodes.Ldloca_S, fieldCountVar);
ilProcessor.Emit(OpCodes.Call, _typeHelper.MsgPackReader.ReadMapHeader);
ilProcessor.Emit(OpCodes.Stloc, mapTempVar);
EmitFieldsAssignmentLoop(ilProcessor, resultVar, fieldCountVar, readerParam, resolved);
}
else
{
var ifTempVar = ilProcessor.AddVariable(_mainModule.TypeSystem.Boolean);
ilProcessor.CallMethod(readerParam, _typeHelper.MsgPackReader.TryReadNil).Store(ifTempVar);
ilProcessor.If(ifTempVar).True().Then(() =>
{
ilProcessor.Emit(OpCodes.Ldnull);
ilProcessor.Emit(OpCodes.Stloc, resultVar);
}).Else(() =>
{
var ctor = resolved.GetConstructors().FirstOrDefault(ctr => ctr.Parameters.Count == 0);
if (ctor == null)
{
throw new InvalidOperationException($"Type {resolved} does not have default constructor");
}
ilProcessor.Emit(OpCodes.Newobj, ctor);
ilProcessor.Emit(OpCodes.Stloc, resultVar);
var mapTempVar = ilProcessor.AddVariable(_mainModule.TypeSystem.Boolean);
ilProcessor.Emit(OpCodes.Ldarg, readerParam);
ilProcessor.Emit(OpCodes.Ldloca_S, fieldCountVar);
ilProcessor.Emit(OpCodes.Call, _typeHelper.MsgPackReader.ReadMapHeader);
ilProcessor.Emit(OpCodes.Stloc, mapTempVar);
//ilProcessor.CallMethod(readerParam, _typeHelper.MsgPackReader.ReadMapHeader, fieldCountVar).Store(mapTempVar);
EmitFieldsAssignmentLoop(ilProcessor, resultVar, fieldCountVar, readerParam, resolved);
});
}
ilProcessor.Emit(OpCodes.Ldloc, resultVar);
ilProcessor.Emit(OpCodes.Ret);
}
internal ForStatement(ILProcessor processor, int from, OperandBase to, int inc)
{
if (processor.Body.Method.Module == null)
{
throw new MethodNotRegisteredException(
$"Method {processor.Body.Method} must be added to class and registered in module");
}
_processor = processor;
var iterator = processor.AddVariable(processor.Body.Method.Module.TypeSystem.Int32);
Iterator = iterator;
EmitIteratorInitialization(from);
_loopStart = Instruction.Create(OpCodes.Nop);
ConditionCode = CreateConditionCode(to, inc);
_processor.Emit(OpCodes.Br, _conditionStart);
_processor.Append(_loopStart);
_loopEnd = Instruction.Create(OpCodes.Nop);
}
