[slime-devel] Re: SLIME buglet: The value NIL is not of type PACKAGE.

[Christophe Rhodes]

Helmut Eller <e9626484 at stud3.tuwien.ac.at> writes:

>> re 2: Attached is another patch (swank-completions.patch), making
>> SWANK:COMPLETIONS handle non-existent packages without bombing.
>> While I was there I removed the unneeded LET*.
>
> The problem occurred only in SBCL, because (let ((*package* nil))) is a
> type error in SBCL. 

Heh.  It's only a type error in sbcl, but it's undefined behaviour
everywhere.  The consequences are undefined if *package* is bound or
set to anything that isn't a package object (see the Value Type
section of the CLHS page for *PACKAGE*, and also section 1.4.4.22).

Cheers,

Christophe
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