Rust, RR, Neovim: A perfect debug combination

#1

Post by zteppenwolf » Tue, Apr 11, 2023, 9:13 AM UTC

Rust, RR, Neovim: A perfect debug combination
github.com

Re: Rust, RR, Neovim: A perfect debug combination

#2

Post by baq » Tue, Apr 11, 2023, 10:05 AM UTC

rr is basically black magic

Re: Rust, RR, Neovim: A perfect debug combination

#3

Post by JestUM » Tue, Apr 11, 2023, 10:08 AM UTC

Investing in a good debugging tool and knowing your way around using it well, makes all the difference.

Re: Rust, RR, Neovim: A perfect debug combination

#4

Post by colesantiago » Tue, Apr 11, 2023, 10:15 AM UTC

Can someone explain what I am looking at here with this? Genuine question.

Re: Rust, RR, Neovim: A perfect debug combination

#5

Post by capableweb » Tue, Apr 11, 2023, 10:19 AM UTC

colesantiago wrote: post #4

Can someone explain what I am looking at here with this? Genuine question.

Rust - Systems programming language (although used for more than just that today)

Neovim - Text editor popular for people who like terminals (forked from vim)

RR - Debugging tool that allows you to record failures/errors and play them back, facilitating easier debugging and reproduction (simplified: basically gdb on steroids)

All together (this repository) - A editor plugin for neovim users who use Rust, to use RR directly in neovim.

Re: Rust, RR, Neovim: A perfect debug combination

#6

Post by thegeomaster » Tue, Apr 11, 2023, 10:21 AM UTC

Only if you're debugging tests.

Unfortunately using rr to debug a bigger application with lots of RAM access is not feasible.

Re: Rust, RR, Neovim: A perfect debug combination

#7

Post by mijoharas » Tue, Apr 11, 2023, 10:29 AM UTC

baq wrote: post #2

rr is basically black magic

It's a real shame that it can't be made to work on arm systems

Re: Rust, RR, Neovim: A perfect debug combination

#8

Post by RcouF1uZ4gsC » Tue, Apr 11, 2023, 10:33 AM UTC

Does this setup have nice visualizations of data structures? Can it show a Vec as a list of values or a HashMap as a list of (key,value)?

Re: Rust, RR, Neovim: A perfect debug combination

#9

Post by sp0ck » Tue, Apr 11, 2023, 10:35 AM UTC

Funny thing is that thanks to rust compiler I never had a need to debug my code :-)

Re: Rust, RR, Neovim: A perfect debug combination

#10

Post by ObscureScience » Tue, Apr 11, 2023, 10:37 AM UTC

thegeomaster wrote: post #6

Only if you're debugging tests. Unfortunately using rr to debug a bigger application with lots of RAM access is not feasible.

Is that true? I genuinly have no experience with it.

In their example they debug Firefox which I would consider a big application. Of course there are many levels above, and maybe you are talkning about tens of GB of memory usage?