No - what I mean is that if someone is worried that their code will be derived from their published hash by someone doing a brute-force attack, they can prevent

No - what I mean is that if someone is worried that their code will be derived from their published hash by someone doing a brute-force attack, they can prevent (or make much harder) this brute-force attack by having comments in their source code. I'm assuming here that the hashed string is the source code rather than the machine code.