> but what bothers me a bit is that these positioning differences actually do
> not show up in the standard regtests. I didn't expect that at all.
Well, me neither. Hence the fume. I needed hitting in the face with it to
even start looking for an explanation. It's likely a potential problem with
all skyline regtests, not just rotation.
---
** [issues:#5346] Fix GC issue in skyline rotations**
**Status:** Started
**Created:** Fri Jun 15, 2018 03:32 PM UTC by David Kastrup
**Last Updated:** Sat Jun 16, 2018 12:27 PM UTC
**Owner:** David Kastrup
Fix GC issue in skyline rotations
This was issue 5341 initially and is a fix for a problem introduced
during issue 5319. The problem basically is that a rotated Stencil is
created and its stencil expression is getting stored on the heap
without retaining any pointer to it in areas scanned during garbage
collections.
This fix is a minimal one that merely avoids creating a stencil and
instead simulates the effect on the transform matrix to be expected
from using a rotated stencil.
http://codereview.appspot.com/344960043
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