9.7 Type Generation Validation [Dido Solutions, Inc Wiki]

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====== 9.7 Type Generation Validation ======

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The team should validate generated types before developers use them in [[dido:99_annexes:annex-b-terms-and-definitions:n:node|Node]] implementations or acceptance [[dido:99_annexes:annex-b-terms-and-definitions:e:evidence|Evidence]]. Type generation validation should confirm that the generated [[dido:99_annexes:annex-b-terms-and-definitions:a:artifact|Artifacts]] exist, match the expected inputs, and support the target build or runtime environment.

Validation should check:

  - Required [[dido:99_annexes:annex-b-terms-and-definitions:i:idl|IDL]] files exist.
  - IDL files parse successfully.
  - The approved generator runs successfully.
  - Generated outputs appear in the expected locations.
  - Generated outputs target the expected language.
  - Generated outputs correspond to the expected [[dido:99_annexes:annex-b-terms-and-definitions:d:dds|DDS]] product or toolset.
  - Build scripts can compile or package the generated Artifacts where applicable.
  - Node implementations can import or reference the generated types.
  - Tests can create, serialize, publish, receive, or inspect representative typed instances where applicable.
  - The generation process does not overwrite handwritten source files.

The ''generateTypes'' script or a related validation script should report clear errors when generation fails. It should identify missing inputs, unsupported tool versions, invalid IDL, unavailable output directories, compilation failures, and protected-file overwrite attempts.

The team should record generation Evidence when type generation forms part of acceptance. Evidence may include command output, generated-file manifests, validation logs, build logs, or test results.

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