public void AssignReference(DMReference reference, DreamValue value)
{
switch (reference.RefType)
{
case DMReference.Type.Self: Result = value; break;
case DMReference.Type.Argument: _localVariables[reference.Index] = value; break;
case DMReference.Type.Local: _localVariables[ArgumentCount + reference.Index] = value; break;
case DMReference.Type.SrcField: Instance.SetVariable(reference.Name, value); break;
case DMReference.Type.Global: DreamManager.Globals[reference.Index] = value; break;
case DMReference.Type.Src:
//TODO: src can be assigned to non-DreamObject values
if (!value.TryGetValueAsDreamObject(out Instance))
{
throw new Exception($"Cannot assign src to {value}");
}
break;
case DMReference.Type.Field: {
DreamValue owner = Pop();
if (!owner.TryGetValueAsDreamObject(out var ownerObj) || ownerObj == null)
{
throw new Exception($"Cannot assign field \"{reference.Name}\" on {owner}");
}
ownerObj.SetVariable(reference.Name, value);
break;
}
case DMReference.Type.ListIndex: {
DreamValue index = Pop();
DreamValue list = Pop();
if (!list.TryGetValueAsDreamList(out var listObj))
{
throw new Exception($"Cannot assign to index {index} of {list}");
}
listObj.SetValue(index, value);
break;
}
default: throw new Exception($"Cannot assign to reference type {reference.RefType}");
}
}