Output your used source code in reverse

Question

I'm new to this stackexchange, but I must say I am very impressed by the knowledge of some here, and the original codegolf answers for some questions.

I'm not even sure if the following is possible, since my programming language knowledge is very limited, but it sounds like a pretty interesting challenge:

Goal:

Output all the code you've used in reverse.

Rules:

• Your code should contain Hello, World! (may be placed as comment)
• You are not allowed to read the actual code-file itself
• Nor are you allowed to read any generated compiler-code
• Or a pre-prepared reversed.txt or something..

Like I said, I'm not sure if it's possible.

As an example, let's say you have the following code (Java):

class Main{public static void main(String[]a){System.out.print("Hello, World!");}}

Then the output of the program should be:

}};)"!dlroW ,olleH")tnirp.tuo.metsyS{)a][gnirtS(niam diov citats cilpub{naiM ssalc

Some sub-rules:

• Any language, any OS, any API/tool
• Any comments made should also be printed in reverse, so keep that in mind if you place Hello, World! in a comment

PS: I know the 'question' Print your code backwards - reverse quine exists, but because of that I added the first rule: Your code should contain Hello, World! as is (so this answer in H9+ that uses the reversed !dlorw olleH isn't allowed).

I think I don't have to explain the rules of codegolf here..