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Tue, 07 Jun 2022 07:58:06 -0700 (PDT) MIME-Version: 1.0 References: <1148576327.671240.1654595869665@mail2.virginmedia.com> In-Reply-To: <1148576327.671240.1654595869665@mail2.virginmedia.com> From: Bart Schaefer Date: Tue, 7 Jun 2022 07:57:55 -0700 Message-ID: Subject: Re: "functions -c" and TRAPxxx To: Peter Stephenson Cc: Zsh hackers list Content-Type: text/plain; charset="UTF-8" X-Seq: 50344 Archived-At: X-Loop: zsh-workers@zsh.org Errors-To: zsh-workers-owner@zsh.org Precedence: list Precedence: bulk Sender: zsh-workers-request@zsh.org X-no-archive: yes List-Id: List-Help: List-Subscribe: List-Unsubscribe: List-Post: List-Owner: List-Archive: On Tue, Jun 7, 2022 at 2:59 AM Peter Stephenson wrote: > > > Creating a TRAPxxx function by "aliasing" to another function with > > "functions -c" does not create the expected trap handler. > > I don't think there's any magic for this, it'll have to be ad hoc > calls to settrap and unsettrap based on the function name. Yes, but e.g. in exec.c there is a comment /* * Remove the old node explicitly in case it has * an alternative name */ I know most of what's going on there, but "functions -c" is creating an alternate name, and there is also the failure case of settrap() returning nonzero to handle.