Thomas Morley <thomasmorle...@gmail.com> writes: > 2017-11-08 23:40 GMT+01:00 David Kastrup <d...@gnu.org>: >> Thomas Morley <thomasmorle...@gmail.com> writes: >>> >>> { >>> \override Fingering #'stencil = >>> #(lambda (grob) >>> (ly:grob-set-property! grob 'stencil >>> (grob-interpret-markup grob #{ \markup \normal-text "foo" #}))) >>> a''-1 >>> } >>> >>> I doubt many people would have been able to read the error and >>> directly point to the faulty coding. >> >> Assertion failures should not be triggered by users anyway. They point >> to a violation of the program's assumptions severe enough that it makes >> no sense to continue. So this should likely become a programming error >> instead. >> >> You still won't get sensible behavior here since the return value will >> (I think) be wrong, too. > > I'm not that interested in a useful return value, but an (programming) > error-message pointing to the location would be great. > If not possible to point to the location, maybe something like "Can't > set property 'stencil while setting 'stencil". > Well, the wording is not accurate, but you may get the point!?
"Property 'stencil changed from inside callback." or something. -- David Kastrup _______________________________________________ bug-lilypond mailing list bug-lilypond@gnu.org https://lists.gnu.org/mailman/listinfo/bug-lilypond