Function isDurationProperty

scripts/codegen/csharp.ts:468–483

* Returns true when a TimeSpan-typed property needs a [JsonConverter] attribute. * * NOTE: The runtime schema generally uses `format: "duration"` on numeric (integer/number) * fields to mean "a duration value expressed in milliseconds". This differs from the JSON * Schema spec, where `format: "d

(schema: JSONSchema7)

 * 8601 strings. Seconds-suffixed fields stay numeric because their wire value is seconds.
 */
function isDurationProperty(schema: JSONSchema7): boolean {
    const nullableInner = getNullableInner(schema);
    if (nullableInner) {
        return isDurationProperty(nullableInner);
    }

    if (schema.format === "duration") {
        const t = schema.type;
        if (t === "number" || t === "integer") return true;
        if (Array.isArray(t)) {
            const nonNull = (t as string[]).filter((x) => x !== "null");
            if (nonNull.length === 1 && (nonNull[0] === "number" || nonNull[0] === "integer")) return true;
        }
    }
    return false;
}

function isMillisecondsDurationProperty(propName: string | undefined, schema: JSONSchema7): boolean {
    return isDurationProperty(schema) && !isSecondsDurationPropertyName(propName);