public static function isValidDatum()

in lang/php/lib/Schema/AvroSchema.php [453:524]
72 lines of code
35 McCabe index (conditional complexity)

    public static function isValidDatum($expected_schema, $datum)
    {
        switch ($expected_schema->type) {
            case self::NULL_TYPE:
                return is_null($datum);
            case self::BOOLEAN_TYPE:
                return is_bool($datum);
            case self::STRING_TYPE:
            case self::BYTES_TYPE:
                return is_string($datum);
            case self::INT_TYPE:
                return (is_int($datum)
                    && (self::INT_MIN_VALUE <= $datum)
                    && ($datum <= self::INT_MAX_VALUE));
            case self::LONG_TYPE:
                return (is_int($datum)
                    && (self::LONG_MIN_VALUE <= $datum)
                    && ($datum <= self::LONG_MAX_VALUE));
            case self::FLOAT_TYPE:
            case self::DOUBLE_TYPE:
                return (is_float($datum) || is_int($datum));
            case self::ARRAY_SCHEMA:
                if (is_array($datum)) {
                    foreach ($datum as $d) {
                        if (!self::isValidDatum($expected_schema->items(), $d)) {
                            return false;
                        }
                    }
                    return true;
                }
                return false;
            case self::MAP_SCHEMA:
                if (is_array($datum)) {
                    foreach ($datum as $k => $v) {
                        if (
                            !is_string($k)
                            || !self::isValidDatum($expected_schema->values(), $v)
                        ) {
                            return false;
                        }
                    }
                    return true;
                }
                return false;
            case self::UNION_SCHEMA:
                foreach ($expected_schema->schemas() as $schema) {
                    if (self::isValidDatum($schema, $datum)) {
                        return true;
                    }
                }
                return false;
            case self::ENUM_SCHEMA:
                return in_array($datum, $expected_schema->symbols());
            case self::FIXED_SCHEMA:
                return (is_string($datum)
                    && (strlen($datum) == $expected_schema->size()));
            case self::RECORD_SCHEMA:
            case self::ERROR_SCHEMA:
            case self::REQUEST_SCHEMA:
                if (is_array($datum)) {
                    foreach ($expected_schema->fields() as $field) {
                        if (!self::isValidDatum($field->type(), $datum[$field->name()] ?? null)) {
                            return false;
                        }
                    }
                    return true;
                }
                return false;
            default:
                throw new AvroSchemaParseException(sprintf('%s is not allowed.', $expected_schema));
        }
    }