static celix_status_t celix_arrayList_determineArrayType()

in libs/utils/src/celix_array_list_encoding.c [43:96]

• 47 lines of code
• 21 McCabe index (conditional complexity)

static celix_status_t celix_arrayList_determineArrayType(const json_t* jsonArray,
                                                          celix_array_list_element_type_t* out) {
    assert(json_array_size(jsonArray) > 0); //precondition: size > 0

    json_t* value;
    int index;
    json_type type = JSON_NULL;
    bool versionType = false;
    json_array_foreach(jsonArray, index, value) {
        if (index == 0) {
            type = json_typeof(value);
            if (type == JSON_STRING && celix_utils_isVersionJsonString(value)) {
                versionType = true;
            }
        } else if ((type == JSON_TRUE || type == JSON_FALSE) && json_is_boolean(value)) {
            // bool, ok.
            continue;
        } else if (type == JSON_INTEGER && json_typeof(value) == JSON_REAL) {
            // mixed integer and real, ok but promote to real
            type = JSON_REAL;
            continue;
        } else if (type == JSON_REAL && json_typeof(value) == JSON_INTEGER) {
            // mixed real and integer, ok
            continue;
        } else if (type != json_typeof(value)) {
            return CELIX_ILLEGAL_ARGUMENT;
        } else if (versionType) {
            if (json_typeof(value) != JSON_STRING || !celix_utils_isVersionJsonString(value)) {
                return CELIX_ILLEGAL_ARGUMENT;
            }
        }
    }

    switch (type) {
        case JSON_STRING:
            *out = versionType ? CELIX_ARRAY_LIST_ELEMENT_TYPE_VERSION : CELIX_ARRAY_LIST_ELEMENT_TYPE_STRING;
            break;
        case JSON_INTEGER:
            *out = CELIX_ARRAY_LIST_ELEMENT_TYPE_LONG;
            break;
        case JSON_REAL:
            *out = CELIX_ARRAY_LIST_ELEMENT_TYPE_DOUBLE;
            break;
        case JSON_TRUE:
        case JSON_FALSE:
            *out = CELIX_ARRAY_LIST_ELEMENT_TYPE_BOOL;
            break;
        default:
            //JSON_NULL, JSON_OBJECT and  JSON_ARRAY
            return CELIX_ILLEGAL_ARGUMENT;
    }

    return CELIX_SUCCESS;
}