[Lilypond-auto] Issue 3048 in lilypond: Write a message when somebody tries to \set a grob property

[lilypond]

Status: Accepted
Owner: ----
Labels: Type-Enhancement

New issue 3048 by address@hidden: Write a message when somebody tries  
to \set a grob property
http://code.google.com/p/lilypond/issues/detail?id=3048

Eluze submitted a feature request here:

http://lists.gnu.org/archive/html/bug-lilypond/2012-12/msg00137.html

as follows:


As a follow up to

http://lilypond.1069038.n5.nabble.com/crash-when-setting-a-grob-if-it-is-used-afterwards-td137583.html

I'd like to ask for an enhancement:

write a message to the log when \set is used with a grob property (this can
cause an abnormal termination of LilyPond without any hint why it happened)


example:

{ \set Fingering = #'(up) g -1 }        % causes LilyPond to crash.


the message should inform that combining Fingering with \set is quite
unusual:

Note: [line/position] usually \override is used to change grob attributes -
trying to continue with the new settings.


I don't know if this should range as an error, a warning or just a note.

thanks!

Eluze