[HarfBuzz] assert in hb_buffer_add_utf

[Dejan Kovacevic]

Yes, it appears icu-le-hb hits it. Other than that, seems to work fine (but will be doing some more testing later)...

> -----Original Message----- 
> From: "Behdad Esfahbod" <behdad at behdad.org> 
> To: "Dejan Kovacevic" <dejan at d-type.com>, harfbuzz at lists.freedesktop.org 
> Date: 11/15/13 12:18 
> Subject: Re: [HarfBuzz] assert in hb_buffer_add_utf 
> 
> On 13-11-15 12:13 PM, Dejan Kovacevic wrote:
> > The hb_buffer_add_utf function starts with the following assert (hb-buffer.cc: line 1289):
> > 
> >   assert (buffer->content_type == HB_BUFFER_CONTENT_TYPE_UNICODE ||
> >       (!buffer->len && buffer->content_type == HB_BUFFER_CONTENT_TYPE_INVALID));
> > 
> > I have observed that buffer->content_type can also be HB_BUFFER_CONTENT_TYPE_GLYPHS, in which case the assert fails. Not sure if this is by design.
> 
> That's exactly why the assert is there.  If you use the buffer correctly the
> assert will never be hit.  Do you have a use case that is asserting currently?
> 
> -- 
> behdad
> http://behdad.org/