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Fri, 12 Aug 2022 12:33:42 -0700 (PDT) MIME-Version: 1.0 References: <64b57144-d4af-4708-983b-0bd202557bbd@www.fastmail.com> <4369c556-7ccb-4866-8e69-9d829afc81c3@www.fastmail.com> In-Reply-To: <4369c556-7ccb-4866-8e69-9d829afc81c3@www.fastmail.com> From: Zach Riggle Date: Fri, 12 Aug 2022 14:33:31 -0500 Message-ID: Subject: Re: Overriding "builtin" To: =?UTF-8?Q?Lawrence_Vel=C3=A1zquez?= Cc: Stephane Chazelas , Daniel Shahaf , =?UTF-8?B?xJBvw6BuIFRy4bqnbiBDw7RuZyBEYW5o?= , zsh-users@zsh.org Content-Type: multipart/alternative; boundary="00000000000013658505e6105cc2" X-Seq: 27949 Archived-At: X-Loop: zsh-users@zsh.org Errors-To: zsh-users-owner@zsh.org Precedence: list Precedence: bulk Sender: zsh-users-request@zsh.org X-no-archive: yes List-Id: List-Help: List-Subscribe: List-Unsubscribe: List-Post: List-Owner: List-Archive: --00000000000013658505e6105cc2 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Wouldn't the above also break for this? function unhash() { ... } It would be nice if we could add a feature such that the "builtin" identifier cannot be overloaded. *Zach Riggle* On Fri, Aug 12, 2022 at 1:43 PM Lawrence Vel=C3=A1zquez wr= ote: > On Fri, Aug 12, 2022, at 3:57 AM, Stephane Chazelas wrote: > > On 2022-08-12 08:12, Daniel Shahaf wrote: > > [...] > >> =C2=ABunset 'functions[unfunction]'=C2=BB, provided (zsh/parameter is = available > >> and) someone hasn't created an unset() function as well. > > [...] > > > > Or the standard "unset -f builtin" > > > > Or functions=3D() > > > > (or exec zsh -f) > > > > Or > > > > builtin() { > > echo my builtin wrapper > > set -o localoptions -o posixbuiltins > > command builtin "$@" > > } > > Or ''unhash -f builtin''. > > I (perhaps overzealously) interpreted the original question as > asking for a method that is impervious to interference from *any* > function (and maybe alias?) definition. But if you've broken your > shell so hard that *none* of these suggestions works, then, as they > say in the IRC channel, you get to keep the pieces. > > -- > vq > --00000000000013658505e6105cc2 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Wouldn't the above also break for this?

=C2=A0 =C2=A0 function unhash() { ... }

It wo= uld be nice if we could add a feature such that the "builtin" ide= ntifier cannot be overloaded.

Zach Riggle


On Fri, Aug 12, 2022 at 1:43 PM Lawrence Vel= =C3=A1zquez <larryv@zsh.org> wr= ote:
On Fri, Aug= 12, 2022, at 3:57 AM, Stephane Chazelas wrote:
> On 2022-08-12 08:12, Daniel Shahaf wrote:
> [...]
>> =C2=ABunset 'functions[unfunction]'=C2=BB, provided (zsh/p= arameter is available
>> and) someone hasn't created an unset() function as well.
> [...]
>
> Or the standard "unset -f builtin"
>
> Or functions=3D()
>
> (or exec zsh -f)
>
> Or
>
> builtin() {
>=C2=A0 =C2=A0 echo my builtin wrapper
>=C2=A0 =C2=A0 set -o localoptions -o posixbuiltins
>=C2=A0 =C2=A0 command builtin "$@"
> }

Or ''unhash -f builtin''.

I (perhaps overzealously) interpreted the original question as
asking for a method that is impervious to interference from *any*
function (and maybe alias?) definition.=C2=A0 But if you've broken your=
shell so hard that *none* of these suggestions works, then, as they
say in the IRC channel, you get to keep the pieces.

--
vq
--00000000000013658505e6105cc2--