220 12085 article Path: news.gmane.org!not-for-mail From: Andrew Tomazos Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Re: Object scope access Date: Sat, 26 Jul 2014 12:40:27 +0200 Lines: 169 Approved: news@gmane.org Message-ID: References: <628bd33d-db38-438f-8eea-26831c3ad268@isocpp.org> <97b98f0c-4d59-4aba-bb30-d16601caa5a7@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/alternative; boundary=90e6ba1efb747252da04ff16518d X-Trace: ger.gmane.org 1406371237 7623 80.91.229.3 (26 Jul 2014 10:40:37 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 26 Jul 2014 10:40:37 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBD5KHQXXWYPRBHELZ2PAKGQE5KLS7TY@isocpp.org Sat Jul 26 12:40:30 2014 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-oa0-f70.google.com ([209.85.219.70]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1XAzOw-0008Nh-02 for gclcip-std-proposals@m.gmane.org; Sat, 26 Jul 2014 12:40:30 +0200 Original-Received: by mail-oa0-f70.google.com with SMTP id eb12sf33797363oac.5 for ; Sat, 26 Jul 2014 03:40:28 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:x-original-sender :x-original-authentication-results:reply-to:precedence:mailing-list :list-id:list-post:list-help:list-archive:list-subscribe :list-unsubscribe:content-type; bh=LfbljT0OCodC2lblpodFPFnLK50QwDoMGmQVCXa/r/o=; b=Zx3q6GkCrz0acCqY6tvAw4lhWD0FXI+f7128mKTNRWvvhYFWQn7/8cRTsvizAQh/jm UlUKsN1gbgdBxomLSseRlEECUUTUKcikxKPhua7+oOXAB7682t+xb9LDF52gU1VzfqxM gawAR3ZCZeU9zFpxf/rdOVRde9gbawWlcwSra0Z+lon4iWtXcJaXrrSj8bh1RER9YBdF w3ad5+fM1D68j3KL1B5T1twJ19uucsbibVfdTSAu00/AqypEAFswnzFN+aO+d7NoZ+Rc ylyY78P6mkPtTVYLkQsUKnwDTnE+NpJoV5ntUKV7vpfcTsctr8dm4Oa4g9EQr28MZfKb Hsfw== X-Gm-Message-State: ALoCoQkoP5rjitY2ksIz0fbDu9RTft3aYsV0VzDhTmamLujdQdw0kI0B68kohZV1kZbVMIhhuym0 X-Received: by 10.42.119.82 with SMTP id a18mr13193893icr.19.1406371228859; Sat, 26 Jul 2014 03:40:28 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.51.17.72 with SMTP id gc8ls907803igd.35.gmail; Sat, 26 Jul 2014 03:40:27 -0700 (PDT) X-Received: by 10.43.95.10 with SMTP id ca10mr27639719icc.55.1406371227840; Sat, 26 Jul 2014 03:40:27 -0700 (PDT) Original-Received: from mail-ie0-x22c.google.com (mail-ie0-x22c.google.com [2607:f8b0:4001:c03::22c]) by mx.google.com with ESMTPS id i4si2703644igj.19.2014.07.26.03.40.27 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Sat, 26 Jul 2014 03:40:27 -0700 (PDT) Received-SPF: pass (google.com: domain of andrewtomazos@gmail.com designates 2607:f8b0:4001:c03::22c as permitted sender) client-ip=2607:f8b0:4001:c03::22c; Original-Received: by mail-ie0-f172.google.com with SMTP id lx4so4770103iec.17 for ; Sat, 26 Jul 2014 03:40:27 -0700 (PDT) X-Received: by 10.42.39.142 with SMTP id h14mr28653377ice.32.1406371227648; Sat, 26 Jul 2014 03:40:27 -0700 (PDT) Original-Received: by 10.64.76.231 with HTTP; Sat, 26 Jul 2014 03:40:27 -0700 (PDT) Original-Received: by 10.64.76.231 with HTTP; Sat, 26 Jul 2014 03:40:27 -0700 (PDT) In-Reply-To: <97b98f0c-4d59-4aba-bb30-d16601caa5a7@isocpp.org> X-Original-Sender: andrewtomazos@gmail.com X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of andrewtomazos@gmail.com designates 2607:f8b0:4001:c03::22c as permitted sender) smtp.mail=andrewtomazos@gmail.com; dkim=pass header.i=@gmail.com; dmarc=pass (p=NONE dis=NONE) header.from=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:12085 Archived-At: --90e6ba1efb747252da04ff16518d Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable I just asked the commitee the other day if something like the Pascal with-statement had been proposed for C++ and if not, if there was any interest. Dr Stroustrup said that it had been proposed before and there wasn't any interest. Sorry. On Jul 25, 2014 12:01 AM, wrote: > The Game Maker Language (yes, the language used by Game Maker) has > something akin to what you propose: > > with (person) > { > if (name =3D=3D "gord") > { > age =3D 99; > } > } > > Le jeudi 24 juillet 2014 23:43:22 UTC+2, Ezekiel Warren a =C3=A9crit : >> >> I propose having the ability to create a scope with access to an objects >> members. >> >> *This example explains itself:* >> struct Person { >> string name; >> int age; >> }; >> >> Person person; >> >> // Creating a new scope with access to an objects members >> person.{ >> if(name =3D=3D "gord") { >> age =3D 99; >> } >> } >> >> // Function with access to an objects members >> void Func() person.{ >> age +=3D 2; >> } >> >> // Lambda with access to an objects members >> auto Lambda =3D [] person.{ >> age -=3D 2; >> }; >> >> It would also work with if, else, for, while, do, and switch. By default >> class member functions have access to this. >> >> What do you think? >> > -- > > --- > 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/. > --=20 ---=20 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 e= mail 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-proposa= ls/. --90e6ba1efb747252da04ff16518d Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable

I just asked the commitee the other day if something like th= e Pascal with-statement had been proposed for C++ and if not, if there was = any interest.=C2=A0 Dr Stroustrup said that it had been proposed before and= there wasn't any interest.=C2=A0 Sorry.

On Jul 25, 2014 12:01 AM, <morwenn29@gmail.com> wrote:
The Game Maker Language (yes, the language used by Game Ma= ker) has something akin to what you propose:

with (person)
{
=C2=A0= =C2=A0=C2=A0 if (name =3D=3D "gord")
=C2=A0=C2=A0=C2=A0 {
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 age =3D = 99;
=C2=A0=C2=A0=C2=A0 }
}

Le jeudi 24 juillet 20= 14 23:43:22 UTC+2, Ezekiel Warren a =C3=A9crit=C2=A0:
I propose having the ability to create a scope with access= to an objects members.

This example explains itself:=
struct Person {
string n= ame;
int age;
};
Person person;

// Creating a new scope with access to an obje= cts members
person.{
if(name =3D=3D "gord&= quot;) {
age =3D 99;
}=
}

// Function with access = to an objects members
void Func() person.{
 age +=3D 2;
}

// Lambda with access to an objects members
auto Lambda =3D [] = person.{
 age -=3D 2;
};

It would also work with if= , else, for, while, do, and switch. By default class member functions have = access to this.

What do you think?

--

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