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no-legacy-usage

Full name
@azure-tools/typespec-azure-core/no-legacy-usage

Types, decorators and other constructs from located under a .Legacy namespace are considered legacy and should not be used in new code. The only acceptable usage is for brownfield services which have their existing pattern grandfathered in.

❌ Incorrect

Section titled “❌ Incorrect”
model Pet {
  @Azure.ClientGenerator.Core.Legacy.flattenProperty
  name: PetProperties;
}
model Page {
  @nextLink nextLink: Azure.Core.Legacy.parameterizedNextLink<[
    ListCertificateOptions.includePending
  ]>;
}

✅ Correct

Section titled “✅ Correct”
model Pet {
  name: PetProperties;
}
model Page {
  @nextLink nextLink: url;
}