Fix IsStringEnumArray for nullable enum arrays#1904
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lahma merged 1 commit intoRicoSuter:masterfrom Mar 8, 2026
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Use ActualTypeSchema instead of ActualSchema when resolving array item schema, so that nullable oneOf wrappers are properly resolved to the underlying enum type. This matches the existing pattern used by IsStringEnum. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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This was referenced Apr 8, 2026
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Summary
IsStringEnumArrayreturnedfalseforList<MyEnum?>because.Item.ActualSchemadoesn't resolve through nullableoneOfwrappers.Item.ActualTypeSchema(2 occurrences), which filters out the null entry inoneOfwrappers — matching the existing pattern used byIsStringEnumTest plan
When_nullable_enum_array_then_IsStringEnumArray_is_truewith a JSON schema containing a nullable enum array (oneOf: [null, $ref enum]in items)StringEnumConverter🤖 Generated with Claude Code