Of course I agree with Dekorte. Having written compilers written in perl, C and LISP - the ones in perl in pure OO, and the ones in C and LISP without, I conclude that I rather add classes and methods to my compilers than trying to improve it without. In the one written in C, classes are supported by the intermediate VM though (dynamically typed, very similar to Io), which is still better than having to write it in horrible C++.