[HarfBuzz] assert in hb_buffer_add_utf

[Behdad Esfahbod]

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/