public void Execute(MethodContext context, MethodState state, object operand = null)
{
if (context.EvalStack.Count < 1)
{
throw new InvalidStackSizeException("Evaluation stack should contain an element");
}
ESSlot refSlot = context.EvalStack.Pop();
if (refSlot.SType != ESSlotType.HORef || ((Int32)refSlot.Val) == GCHeapObj.NullObj.Addr)
{
throw new InvalidOperationException("Stack contains an invalid data");
}
//Get heap object by address
GCHeapObj hObj = context.GCHeap.GetObj((Int32)refSlot.Val);
var typeObject = context.TypesHeap.GetTypeObject(hObj.TypeToken);
if (typeObject == null)
{
throw new InvalidOperationException("UnboxEngine: Type was not loaded");
}
else if (!typeObject.TypeDesc.IsValueType)
{
throw new InvalidOperationException("Reference type cannot be unboxed");
}
ESSlot valSlot = new ESSlot()
{
SType = ESSlotType.Val,
TypeToken = hObj.TypeToken
};
if (hObj.TypeToken.IsPrimitive)
{
valSlot.Val = GetUnaryOperation(hObj.TypeToken.PrimitiveType, UnaryPrimitiveOpType.GetStackRep)(hObj.Val);
}
else
{
valSlot.Val = hObj.Val;
}
context.EvalStack.Push(valSlot);
}
public void Execute(MethodContext context, MethodState state, object operand = null)
{
if (context.EvalStack.Count < 1)
{
throw new InvalidStackSizeException("Evaluation stack should contain an element to be boxed");
}
ESSlot valueSlot = context.EvalStack.Pop();
if (valueSlot.SType != ESSlotType.Val)
{
throw new InvalidOperationException("Stack contains an invalid data that cannot be boxed");
}
//Check if type is loaded
if (!context.TypeLoader.TypeIsLoaded(valueSlot.TypeToken))
{
throw new InvalidOperationException("Type is not loaded into the domain");
}
if (valueSlot.TypeToken.IsPrimitive)
{
if (!IsPrimaryType(valueSlot.TypeToken.PrimitiveType))
{
valueSlot.Val = GetUnaryOperation(valueSlot.TypeToken.PrimitiveType, UnaryPrimitiveOpType.GetStoreRep)(valueSlot.Val);
}
}
TypeObject typeObj = context.TypesHeap.GetTypeObject(valueSlot.TypeToken);
GCHeapObj hObj = context.GCHeap.AllocObj(typeObj);
hObj.Val = valueSlot.Val;
ESSlot refSlot = new ESSlot()
{
TypeToken = valueSlot.TypeToken,
SType = ESSlotType.HORef,
Val = hObj.Addr
};
context.EvalStack.Push(refSlot);
}
public void Execute(MethodContext context, MethodState state, object operand = null)
{
//Pop "this" from stack and check to null
ESSlot objThisSlot = context.EvalStack.Peek();
Int32 thisRefAddr = (Int32)objThisSlot.Val;
if (thisRefAddr == GCHeapObj.NullObj.Addr)
{
throw new NullReferenceException("Object is null");
}
//Get right method
var methodDef = (operand as MethodToken);
if (methodDef == null)
{
throw new ArgumentException("Incorrect or null method definition");
}
GCHeapObj thisObject = context.GCHeap.GetObj((Int32)objThisSlot.Val);
//if (typeObjHeap == GCHeapObj.NullObj)
// throw new NullReferenceException("Type object is null");
TypeObject typeObj = context.TypesHeap.GetTypeObject(thisObject.TypeToken);
MethodDesc method = typeObj.VTable.GetMethod(methodDef);
if (method == null)
{
throw new InvalidOperationException("Method described by the provided metadata was not found in type's vtable");
}
state.CallMethod = method;
state.ExecutionInterruption = ExecutionInterruption.Call;
}