public override DynamicMetaObject BindDeleteMember(DeleteMemberBinder binder)
{
return(new DynamicMetaObject(
Expression.Call(
Utils.Convert(Expression, typeof(PythonModule)),
typeof(PythonModule).GetMethod("__delattr__"),
PythonContext.GetCodeContext(binder),
Expression.Constant(binder.Name)
),
BindingRestrictions.GetTypeRestriction(Expression, Value.GetType())
));
}
public override DynamicMetaObject BindSetMember(SetMemberBinder binder, DynamicMetaObject value)
{
Debug.Assert(value.Value != Uninitialized.Instance);
return(new DynamicMetaObject(
Expression.Block(
Expression.Call(
Utils.Convert(Expression, typeof(PythonModule)),
typeof(PythonModule).GetMethod("__setattr__"),
PythonContext.GetCodeContext(binder),
Expression.Constant(binder.Name),
Expression.Convert(value.Expression, typeof(object))
),
Expression.Convert(value.Expression, typeof(object))
),
BindingRestrictions.GetTypeRestriction(Expression, Value.GetType())
));
}
private DynamicMetaObject GetMemberWorker(DynamicMetaObjectBinder binder, DynamicMetaObject codeContext)
{
string name = GetGetMemberName(binder);
var tmp = Expression.Variable(typeof(object), "res");
return(new DynamicMetaObject(
Expression.Block(
new[] { tmp },
Expression.Condition(
Expression.Call(
typeof(PythonOps).GetMethod("ModuleTryGetMember"),
PythonContext.GetCodeContext(binder),
Utils.Convert(Expression, typeof(PythonModule)),
Expression.Constant(name),
tmp
),
tmp,
Expression.Convert(GetMemberFallback(this, binder, codeContext).Expression, typeof(object))
)
),
BindingRestrictions.GetTypeRestriction(Expression, Value.GetType())
));
}
