[instancer] Add assertion

2022-08-06 16:22:39 -06:00 · 2022-08-06 16:22:39 -06:00 · d611c1519e
commit d611c1519e
parent 8ca0dab0c0
1 changed files with 2 additions and 0 deletions
--- a/Lib/fontTools/varLib/instancer/solver.py
+++ b/Lib/fontTools/varLib/instancer/solver.py
@ -110,6 +110,8 @@ def rebaseTent(tent, axisLimit):
    lower, peak, upper = tent
    assert -2 <= lower <= peak <= upper <= +2

+    assert peak != 0
+
    # Get the pinned case out of the way
    if axisMin == axisMax:
        return _solvePinned(tent, axisLimit)