internal IDictionary<object, object> GetAttrDictWithCustomDict(ICallerContext context, ICustomAttributes self, IAttributesDictionary selfDict)
{
Debug.Assert(IsInstanceOfType(self));
// Get the attributes from the instance
Dict res = new Dict(selfDict);
// Add the attributes from the type
Dict typeDict = base.GetAttrDict(context, self);
foreach (KeyValuePair<object, object> pair in (IDictionary<object, object>)typeDict) {
res.Add(pair);
}
return res;
}
/// <summary>
/// Types implementing ICustomAttributes need special handling for attribute access since they have their own dictionary
/// </summary>
internal void SetAttrWithCustomDict(ICallerContext context, ICustomAttributes self, IAttributesDictionary selfDict, SymbolId name, object value)
{
Debug.Assert(IsInstanceOfType(self));
if (name == SymbolTable.Dict)
throw Ops.AttributeErrorForReadonlyAttribute(__name__.ToString(), name);
object dummy;
if (TryLookupSlot(context, name, out dummy)) {
SetAttr(context, self, name, value);
} else {
selfDict[name] = value;
}
}
internal bool DeleteAttrWithCustomDict(ICallerContext context, ICustomAttributes self, IAttributesDictionary selfDict, SymbolId name)
{
Debug.Assert(IsInstanceOfType(self));
if (name == SymbolTable.Dict)
throw Ops.AttributeErrorForReadonlyAttribute(__name__.ToString(), name);
object value;
if (selfDict.TryGetValue(name, out value)) {
if (value == Uninitialized.instance) return false;
selfDict.Remove(name);
return true;
}
object dummy;
if (TryLookupSlot(context, name, out dummy)) {
selfDict[name] = Uninitialized.instance;
return true;
} else {
return selfDict.Remove(name);
}
}
