dmd 2.068, 2.069, 2.0xx Evil Plan going forward

[Iain Buclaw via Digitalmars-d]

On 20 July 2015 at 06:02, Walter Bright via Digitalmars-d
<digitalmars-d at puremagic.com> wrote:
> 2.068 - resolve remaining regressions and release
>
> 2.069 - translate to D. No new features, no refactoring. Only regression
> fixes and what's already in HEAD. This should give us a solid baseline. It
> also means that open PRs that address other issues will not be pulled for
> 2.069.
>
> Perhaps we should name this 2.100, to signify such a milestone.
>
> 2.101+ -
> 1. Take advantage of D features to improve quality.
> 2. Go to full lazy semantic analysis of imports, rather than the current
> "analyze them all"
> 3. Rethink what "speculative instantiation" of templates means so we can
> have a coherent process of compiling them.
> 4. Redo CTFE interpreter so it only rarely needs to allocate memory. This
> was already done for constant folding, but now it's time for the rest of the
> interpreter.
> 5. Get rid of reliance on the global error count. This has been mostly done,
> it just hast to be finished.
> 6. Convert the back end to D as well.

I just have one request.  We need to designate a supported version of
the compiler (2.069?) as the base to which we convert and maintain
compatibility for, and do not introduce any new features after that
point.  Something as vague as "the last three versions" does *not* cut
it.

This is to give maximum time for all ecosystems to adjust, and
encourage that we have a "stable" snapshot of D2 before the conversion
that will receive maintenance fixes long after mainline development
has switched.

Iain