bug-gnu-emacs
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

bug#6835: 23.2; eval'ing `type-of' with #[abc] as arg gets a Fatal error


From: Stefan Monnier
Subject: bug#6835: 23.2; eval'ing `type-of' with #[abc] as arg gets a Fatal error (11) Segmentation fault
Date: Tue, 10 Aug 2010 10:27:19 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux)

> (functionp #[abc])
> ⇒ t

> (funcall #[abc])
> ⇒ Debugger entered--Lisp error: (invalid-function #[abc])

> Shouldn't anything that satisfies functionp be a valid argument to funcall?

Yes and no.  Should (lambda 3) be accepted by functionp?  What about
(lambda () . 3) ?  What about (lambda () (+ . 1)) and other errors?

#[abc] is an object of "function type", which is why functionp
returns t.  I don't think that it's terribly important if when calling
it, you get an error, since that can happen for syntactically valid
functions as well.


        Stefan





reply via email to

[Prev in Thread] Current Thread [Next in Thread]