Re: translation-type? vs. backend-type?

[David Kastrup]

Lukas-Fabian Moser <lfm@gmx.de> writes:

> Hi David & Jean,
>
> thanks much for the explanations and clarifications!
>
>>> Part b) failed with current LilyPond: "can't find property type-check
>>> for `instrument' (translation-type?)" (I'm not sure if a) and c) work
>>> or just were not being in an active code path).
>> The error message is entirely unrelated to b).  Any correlation must be
>> due to different code paths getting exercised.  The problem is that a
>> context property "instrument" is being set without being defined, and
>> the change flagging the preexisting problem may possibly be
>>
>> commit e44bc2cc48f9fb714603bdb5f8db532d55374087
>> Author: Neil Puttock <n.puttock@gmail.com>
>> Date:   Thu Apr 30 20:29:09 2009 +0100
>>
>>      Add type-checking to \tweak.
>>
>> in version 2.13.1
>
> Argh, my bad: I wanted to give the english version of the error
> message and searched for it, but then forgot about adjusting to the
> actual message I got. So please forget about "instrument", that's an
> artifact of my stupidity.
>
> The actual warning was:
>
>> Warnung: Eigenschafts-Typprüfung für »mensural_ligature_queue«
>> (translation-type?) kann nicht gefunden werden. vielleicht ein
>> Tippfehler?
>> Warnung: Zuweisung wird übersprungen
>
>>> Is this correct? And if so, when did this change between 2.12 and
>>> 2.22, seeing as the above code seems to have worked in 2011?
>> This has been around since at least 2.7 or longer.  No change here.
>
> Ok, so then I remain unclear as to why the original code seemingly
> worked with 2.12. But at the end of the day, I don't care that much:
> 'translation-type it is then, for what should be a \set'table context
> property.

I repeat:

>> the change flagging the preexisting problem may possibly be
>>
>> commit e44bc2cc48f9fb714603bdb5f8db532d55374087
>> Author: Neil Puttock <n.puttock@gmail.com>
>> Date:   Thu Apr 30 20:29:09 2009 +0100
>>
>>      Add type-checking to \tweak.
>>
>> in version 2.13.1

-- 
David Kastrup