Method require_n

src/bytecode/io/reader.rs:851–861

(reader: &mut BlockReader, count: usize, extractor: U)

    }

    fn require_n<T, U>(reader: &mut BlockReader, count: usize, extractor: U) -> Result<T, Error> where U: Fn(BlockReader) -> T {
        match reader.read_n(count) {
            Ok(bytes) => {
                let mut cursor = Cursor::new(bytes);
                let r = BlockReader::new(&mut cursor);

                Ok(extractor(r))
            },
            Err(err) => Err(err)
        }
    }
}

// TODO remove pub after testing