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[-] jeena@jemmy.jeena.net 1 points 1 year ago

At university the by far coolest and most fun course was compiler construction. We had to write something which would compile a small subset of Java (Javalette) into the Java Virtual Machine instruction set.

I wrote my compiler in Haskell because it seemed that it'd be much less hassle compared to do it in a object oriented or procedual language.

It ain't pretty but it's honest work: https://github.com/jeena/CC/blob/master/Compiler.hs

[-] cashews_win@lemmy.world 0 points 1 year ago

I wrote my compiler in Haskell because it seemed that it’d be much less hassle compared to do it in a object oriented or procedual language.

That is not a feeling I'd associate with Haskell!!

[-] jeena@jemmy.jeena.net 1 points 1 year ago

But it definitely was, oh and when you compared the results, I don't remember the exact number anymore but compared to especially the solutions in Java and C++ the haskell ones used around 1/10 of the lines of code to solve this particular problem. Because in the end this problem really has a recursive nature.

[-] joyjoy@lemmy.world 1 points 1 year ago

When you write a compiler, you eventually have to write it twice. Once in a pre-existing language, then again in the language it compiles.

Just say no to bootstrapping.

[-] pewpew@feddit.it 0 points 1 year ago

The programmer who made the OS

[-] nychtelios@rlyeh.icu 3 points 1 year ago

Actually compilers are more complex than operative systems, and incredibly they are built using compilers.

[-] cdnalsi@lemmy.world 1 points 1 year ago

Compilers are built using compilers?

[-] phorq@lemmy.ml 3 points 1 year ago

Yup, C is written in C. You bootstrap using a compiler written in another language until your language is complete enough to write its own compiler.

this post was submitted on 26 Jun 2023
18 points (100.0% liked)

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