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fix(cdk): preserve prototype chains in array helpers #1874

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fix(cdk): preserve prototype chains in array helpers #1874

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@Karnaukhov-kh Karnaukhov-kh commented Jun 11, 2025 •
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update, upsert, and toDictionary functions were losing the prototype chain of objects, causing instanceof checks to fail. Spread operator was the cause of it.

Key Changes:

  • Prototype Preservation: Replaced the use of the spread operator with Object.create and Object.assign to preserver prototype chain.
  • Unit Tests: Added unit tests in update.spec.ts, upsert.spec.ts, and toDictionary.spec.ts to verify that class instances maintain the prototype after transform.

Closes #1480

@github-actions github-actions bot added 🛂 Test Unit tests, e2e tests, integration tests, test coverage 🛠️ CDK CDK related labels Jun 11, 2025
@Karnaukhov-kh Karnaukhov-kh requested a review from hoebbelsB June 11, 2025 17:32
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nx-cloud bot commented Jun 11, 2025 •
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View your CI Pipeline Execution ↗ for commit c75f07c.

Command Status Duration Result
nx affected -t lint build test component-test e... ❌ Failed 15s View ↗
nx-cloud record -- npx nx format:check ✅ Succeeded 1s View ↗

☁️ Nx Cloud last updated this comment at 2025-07-02 18:28:29 UTC

@bjarne-callewaert
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@Karnaukhov-kh @hoebbelsB
Is anything blocking this PR from being merged?
If there's something I could help with, feel free to reach out

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Update transformation looses typing
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@Karnaukhov-kh @bjarne-callewaert