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tailscale/util/checkchange
Brad Fitzpatrick 316afe7d02 util/checkchange: stop using deephash everywhere
Saves 45 KB from the min build, no longer pulling in deephash or
util/hashx, both with unsafe code.

It can actually be more efficient to not use deephash, as you don't
have to walk all bytes of all fields recursively to answer that two
things are not equal. Instead, you can just return false at the first
difference you see. And then with views (as we use ~everywhere
nowadays), the cloning the old value isn't expensive, as it's just a
pointer under the hood.

Updates #12614

Change-Id: I7b08616b8a09b3ade454bb5e0ac5672086fe8aec
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 months ago
..
checkchange.go util/checkchange: stop using deephash everywhere 2 months ago