tree dcfea4440982c4a84ee36c1be94f5e5a5a74739d
parent bbd53fcfa49e9d4a8b3899ce2c109377886a3ba9
author Qunxin Liu <qxliu@google.com> 1697130360 -0700
committer Garret Rieger <grieger@google.com> 1697230347 -0600

[instancer] templatize the priority queue, use custom type for varstore

when instantiating varstore, we need to pop a tuple like
(combined_gain, i, j), if combined gain is the same then we compare the
value of i, and then j. So we'd like to use custom type as the key when
popping from the queue. This would match fonttool's algorithm cause it
uses heappop().