Insert <it’s not much but it’s honest work> meme. It only supports ints and bools, some logic and simple arithmetics, but damn was it hard to get that far.
Can you guess what everything does?
class Scratch { // Start of file public static void main(args: string[]) { int number1 = 2; number 1 = 10; int number2 = 13; boolean fo_sure = true; if (fo_sure) { number1 = number1 + 5 - 10 * 2 / 3; } System.out.println(number1); boolean canYouSeeMee = false; System.out.println(canYouSeeMe); if (canYouSeeMe) { canYouSeeMe = false; } else { canYouSeeMe = true; } System.out.println(canYouSeeMe); } }
What’d I win?
I find it interesting and unnerving that I understood the code, but not the youthspeak.
bleistift2@feddit.de 8 months ago
I have a bachelor’s in computer science and I don’t think I would be able to do that…
Sibbo@sopuli.xyz 8 months ago
Compiler courses are typically master level.
pivot_root@lemmy.world 8 months ago
My college must have been full of sadists. They had undergrad compiler courses and required students to take them.
dan@upvote.au 8 months ago
I had an entry-level compiler course during undergrad. We used JavaCC.
seliaste@lemmy.blahaj.zone 8 months ago
Im having a compiler course on my 3rd year of (french) bachelor
BorgDrone@lemmy.one 8 months ago
It was part of my BSc, but that was over 20 years ago.
swordsmanluke@programming.dev 8 months ago
Compilers are a specialized topic - and syntax design is fiddly - but it really is no harder than any other sort of program. A lot of the hard theoretical work was done back in the sixties and seventies. You don’t have to start from scratch. These days it’s “only” a matter of implementing the features you want and making sure your syntax doesn’t leave itself open to multiple interpretations. (just as arithmetic, e.g. ‘5 × 4 - 1’ requires some rules to make sure there’s only one correct interpretation, so do language syntaxes need to be unambiguous to parse. )
Don’t get me wrong - writing a language is a lot of work and it’s super cool that OP has done this! I just want to stress that language development is 100% doable with an undergrad degree. If you understand recursion and how to parse a string you already have all the theory you need to get started.
prof@infosec.pub 8 months ago
Valuable input! I actually am an undergrad student. There are a lot of frameworks out there that support writing languages, with MPS being one of them.
If I’d start from scratch again and had a little more time, I’d frankly try writing an interpreter myself, instead of trying to conform to weird framework syntax, which I won’t be able to reuse in any other context.
Saying syntax design is fiddly is an understatement. I focused very hard on getting an abstract syntax somehow finished before working on generation in my first iteration. Then I had so much technical debt, that I couldn’t get anything to work and had to rewrite a lot. So I scrapped it all and started again, starting with top level concepts including generation and only implementing some lower level ones, once everything around it worked properly.
sik0fewl@kbin.social 8 months ago
If you'd like to learn how, I recommend the book (which is also available online) Crafting Interpreters.
tsonfeir@lemm.ee 8 months ago
Make a meme with no GitHub repo? Don’t sell yourself short.
catastrophicblues@lemmy.ca 8 months ago
It’s likely transpiring and not compiling, so it’s a lot easier than it seems. Source: made a language that adds features to Python and transpiles to valid Python.
prof@infosec.pub 8 months ago
It doesn’t compile or transpile in actuality. It generates Java based on an abstract syntax tree. The concrete syntax is not considered in Java generation by MPS.