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Re: cc-mode: Make all parameters introduced in Emacs 26 optional
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From: |
Clément Pit-Claudel |
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Subject: |
Re: cc-mode: Make all parameters introduced in Emacs 26 optional |
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Date: |
Mon, 12 Mar 2018 19:29:35 -0400 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 |
On 2018-03-12 18:40, Stefan Monnier wrote:
>> Is there any way for package to know how many mandatory arguments a
>> function has, to be able to branch out for compatibility reasons?
>
> The way I recommend is:
>
> (condition-case nil
> (call1 ...)
> (wrong-number-of-arguments
> (call2 ...)))
Out of (mostly theoretical) curiosity: is there a way to restrict that
condition-case to that specific function call? (rather than catching all
incorrect calls in that call tree)