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Re: Thoughts on Gengtype and Single Inheritance

From: Richard Henderson <rth at redhat dot com>
To: Lawrence Crowl <crowl at googlers dot com>
Cc: Laurynas Biveinis <laurynas dot biveinis at gmail dot com>, "gcc at gcc dot gnu dot org" <gcc at gcc dot gnu dot org>
Date: Thu, 30 Aug 2012 09:57:33 -0700
Subject: Re: Thoughts on Gengtype and Single Inheritance
References: <CAGqM8fZMUPo7pUUF7_RrLYm+fkrukjZenE=UyZu7FrC7BTU9bQ@mail.gmail.com> <CAHkCEVeD+Lm5ZTu0AVTZApPDSN15kGM8mcEepqzetYdgOEi5ig@mail.gmail.com> <CAGqM8fbsSW8HerxnW5XgaTc6Tj1BwjNy__k8A5FT5j6S3uYDwA@mail.gmail.com>

On 08/27/2012 11:58 AM, Lawrence Crowl wrote:
>> > I wonder if the second discriminator support is easily generalizable
>> > to enabling any derived class being a root class on it own with its
>> > own subtree? If I understand correctly, the GTY syntax would be the
>> > same.
> If I understand correctly, you are suggesting multiple inheritance
> via enums.  I think it is possible, but I think the tag syntax
> would need to be changed to more directly associate the tag with
> the variable.

I understood Laurynas to be suggesting not multiple inheritance,
but composition?


r~

Follow-Ups:
- Re: Thoughts on Gengtype and Single Inheritance
  - From: Gabriel Dos Reis
- Re: Thoughts on Gengtype and Single Inheritance
  - From: Lawrence Crowl

References:
- Thoughts on Gengtype and Single Inheritance
  - From: Lawrence Crowl
- Re: Thoughts on Gengtype and Single Inheritance
  - From: Laurynas Biveinis
- Re: Thoughts on Gengtype and Single Inheritance
  - From: Lawrence Crowl

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