Function getEnumValues

src/cli/schema-to-yargs.ts:130–139

* Get enum values from a Zod enum type.

(t: z.ZodType)

 * Get enum values from a Zod enum type.
 */
function getEnumValues(t: z.ZodType): string[] | undefined {
  const def = (t as { _zod?: { def?: { entries?: Record<string, string>; values?: string[] } } })
    ._zod?.def;
  if (def?.entries) return Object.values(def.entries);
  if (def?.values) return def.values;

  // Zod 3 fallback
  const legacyDef = (t as { _def?: { values?: string[] } })._def;
  return legacyDef?.values;
}

/**
 * Get the element type from an array type.