Comment by lelanthran
16 days ago
> Borland's PASCAL did it on the IBM PC.
That's famously a single-pass compiler. Rust is famously unable to compile in a single pass.
It is not possible to make a borrow-checking language that compiles in a single pass.
> No machine of the last 36 (I'll push my chances, 40) years needs to fit a compiler in 64KB.
Exactly - that's why C is what it is: it wasn't a mistake, they were working under the constraints of the time. My original comment (that you appeared to disagree with) said specifically "Remember where C came from and why it was designed the way it was."
Let me ELI5 it for you: It was specifically designed to emit assembly in a single pass because of the constraints of the time.
WTF does "Hur Dur Rust Goodest!" comments mean in this context?
> That's famously a single-pass compiler. Rust is famously unable to compile in a single pass.
I probably should have replied under the other comment. I was also referring to your
> No, I didn't - I asked how sum types were supposed to work in an era of 64KB memory systems.
But context got lost between replies.
> that's why C is what it is
C famously had a big redesign in 1990. The language of today isn't the same K&R printed.