tree 585dae11ef599c317f6beafd0777d3e3efc2615e
parent d814a0b779bf2948d364bc5dcba509b66be8610d
author Googler <noreply@google.com> 1593442644 -0700
committer Copybara-Service <copybara-worker@google.com> 1593442714 -0700

Remove cost of iterating over a list of TargetEdgeObservers in LabelVisitor.

In a build with many genquery rules, this can account for a significant amount of cpu and garbage.

LabelVisitor now takes in a single TargetEdgeObserver. Callers can create a composite.

PiperOrigin-RevId: 318814266