replace reflect with generation

[zouyee]

Signed-off-by: zounengren zouyee1989@gmail.com

Ⅰ. Describe what this PR does

replace reflect with generation

Ⅱ. Does this pull request fix one issue?

none

Ⅲ. Describe how to verify it

none

Ⅳ. Special notes for reviews

none

[kruise-bot]

Welcome @zouyee! It looks like this is your first PR to openkruise/kruise 🎉

[codecov-commenter]

Codecov Report

Merging #885 (540b297) into master (64b66e7) will increase coverage by 0.04%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master     #885      +/-   ##
==========================================
+ Coverage   47.90%   47.94%   +0.04%     
==========================================
  Files         119      119              
  Lines       11237    11239       +2     
==========================================
+ Hits         5383     5389       +6     
+ Misses       5038     5035       -3     
+ Partials      816      815       -1     

Flag	Coverage Δ
unittests	47.94% <0.00%> (+0.04%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
pkg/controller/sidecarset/sidecarset_controller.go	13.88% <0.00%> (ø)
pkg/controller/uniteddeployment/revision.go	66.41% <0.00%> (-1.29%)	⬇️
pkg/controller/cloneset/sync/cloneset_update.go	44.94% <0.00%> (ø)
pkg/controller/statefulset/stateful_set_control.go	62.58% <0.00%> (+0.08%)	⬆️
pkg/controller/cloneset/cloneset_controller.go	55.33% <0.00%> (+2.37%)	⬆️

---

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[FillZpp]

Mostly LG.

/cc @zmberg

[FillZpp]

/lgtm

[kruise-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: FillZpp

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• pkg/controller/sidecarset/OWNERS [FillZpp]

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