220 6865 article Path: news.gmane.org!not-for-mail From: Sean Middleditch Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Proposal: Class Frames to inject prefabricated features into classes Date: Tue, 1 Oct 2013 15:54:30 -0700 (PDT) Lines: 58 Approved: news@gmane.org Message-ID: References: <27c90f45-8ae6-44c1-8755-2b4cece26bcb@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_4714_1586400.1380668070834" X-Trace: ger.gmane.org 1380668068 12838 80.91.229.3 (1 Oct 2013 22:54:28 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 1 Oct 2013 22:54:28 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBCDODCNR2QPRBJ5FVWJAKGQEAYVHTQY@isocpp.org Wed Oct 02 00:54:32 2013 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-vb0-f69.google.com ([209.85.212.69]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1VR8ps-0007yH-Ms for gclcip-std-proposals@m.gmane.org; Wed, 02 Oct 2013 00:54:32 +0200 Original-Received: by mail-vb0-f69.google.com with SMTP id e13sf30657vbg.8 for ; Tue, 01 Oct 2013 15:54:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=date:from:to:message-id:in-reply-to:references:subject:mime-version :x-original-sender:reply-to:precedence:mailing-list:list-id :list-post:list-help:list-archive:list-subscribe:list-unsubscribe :content-type; bh=vq66Z7OTjAhfre9bbEtR+uz2na3WmA0w1PHRRsBqXho=; b=c9/zhNk22gRYNYX22q/UXF99a8Yr/VCm/eAdB0407aDtW+/nsKiLqgBBPwDMwLwned zaTHHCnup4Olg56tlqWb0EwB8FWe32iGhmsrpcb082aAqgOciq/W+BZExQn8usKjBRF6 mFzhQM1y2q5bYuhWuI1kPR6cheWtPJIKVRJWCNgMgblhhoPjz3U/q4Zt+RcXrmt8Li4E uvI+hP0TTIF3yF1RK6G/71reyMb/wCdXSkwpwthcg4mX4Eqx+eaxT9XP6M23f6fc0kh1 7wtIpBwI48fp7gwvZZj8mF/C/W8MwM0l1gC8BdAQMnGuRq8taR7nxjhHf8EQyXgQ1X7s avgg== X-Received: by 10.236.20.114 with SMTP id o78mr10474473yho.8.1380668071742; Tue, 01 Oct 2013 15:54:31 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.49.110.9 with SMTP id hw9ls267314qeb.16.gmail; Tue, 01 Oct 2013 15:54:31 -0700 (PDT) X-Received: by 10.49.13.10 with SMTP id d10mr127734qec.28.1380668071207; Tue, 01 Oct 2013 15:54:31 -0700 (PDT) In-Reply-To: <27c90f45-8ae6-44c1-8755-2b4cece26bcb@isocpp.org> X-Original-Sender: sean.middleditch@gmail.com Precedence: list Mailing-list: list std-proposals@isocpp.org; contact std-proposals+owners@isocpp.org List-ID: X-Google-Group-Id: 399137483710 List-Post: , List-Help: , List-Archive: List-Subscribe: , List-Unsubscribe: , Xref: news.gmane.org gmane.comp.lang.c++.isocpp.proposals:6865 Archived-At: ------=_Part_4714_1586400.1380668070834 Content-Type: text/plain; charset=ISO-8859-1 On Tuesday, October 1, 2013 11:33:12 AM UTC-7, Mikhail Semenov wrote: > > I propose to introduce class frames, which allow to inject features into > classes, which in most cases are not available through inheritance. In > addition, they > don't require virtual functions, which makes them more efficient. > > In what significant ways does this differ from the whole Mixins feature brought up recently? It looks and sounds like the same general idea to me, sans some syntactical and terminology differences. -- --- You received this message because you are subscribed to the Google Groups "ISO C++ Standard - Future Proposals" group. To unsubscribe from this group and stop receiving emails from it, send an email to std-proposals+unsubscribe@isocpp.org. To post to this group, send email to std-proposals@isocpp.org. Visit this group at http://groups.google.com/a/isocpp.org/group/std-proposals/. ------=_Part_4714_1586400.1380668070834 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
On Tuesday, October 1, 2013 11:33:12 AM UTC-7, Mikhail Sem= enov wrote:
I propose to introduce class frames, which allow to inject features into= classes, which in most cases are not available through inheritance. In add= ition, they
don't require virtual functions, which makes them mor= e efficient.
 

In wha= t significant ways does this differ from the whole Mixins feature brought u= p recently?  It looks and sounds like the same general idea to me, san= s some syntactical and terminology differences.

 

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