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bug#14029: 24.2.50; [PATCH] imenu problems with special elements

From: Dmitry Gutov
Subject: bug#14029: 24.2.50; [PATCH] imenu problems with special elements
Date: Fri, 29 Nov 2013 05:43:57 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.1.1

Version: 24.4

Thanks, that's clearer. Installed in revision 115279.

One note:

>> Is it possible for (cadr item) to be a list and also be `functionp' and yet not >> have its car be `lambda'? Dunno. I was under the impression that it was >> impossible, but I could be wrong. If it is possible, is it better to test
>> `functionp' here?  Dunno.
> If the documentation states FUNCTION, then it should be a function.

The documentation allows FUNCTION in the third element, but `imenu--subalist-p' is checking whether the second element is a function.

AFAICT, it's checking against malformed items. Your change makes it also guard against lexically-bound lambdas (their car is `closure'), so that's good, I guess.

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