DIP3
| Title: | Remove inheritance protection |
|---|---|
| DIP: | 3 |
| Version: | 1 |
| Status: | Approved |
| Created: | 2009-07-11 |
| Last Modified: | 2009-07-11 |
| Breaks: | Probably Little |
| Related Issue: | Bugzilla 177 |
| Links: | DIP3/Archive — Original Prowiki Page |
Contents
Abstract
Non-public inheritance in a single inheritance language that has a single root object hierarchy makes little sense.
Rationale
Hiding 'Object' level attributes from a class leads to strange behavior.
Description
The compiler is behaving as spec'ed, but the value and correctness of this part of the spec is in question.
The suggested change, effectively drop one line from the grammar.
SuperClass?:
Identifier
Protection Identifier // delete
An alternative would be for Object to always be forced to public visibility even if there's a break in the public chain up to it.
Copyright
This document has been placed in the Public Domain.
