ModernMech on Zig’s Io.Threaded is neat

Comment on Zig’s Io.Threaded is neat parent

Part of the reason the compile-edit-test loop is slower than in other languages is because Rust is doing a whole borrow checking phase other languages don't. I don't see why it'd be faster or more accurate to get an LLM to do the same static analysis as the Rust compiler. Although I'd be interested in an analysis of how much each would cost in dollars.

bombela 20d

It's the compilation that is slow, not the checking. You can observe this by comparing "cargo check" and "cargo build".

ModernMech 20d

  cargo clean
  cargo check
  Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 40s
  cargo build
  Finished `dev` profile [unoptimized + debuginfo] target(s) in 3m 12s
  cargo clean
  cargo build
  Finished `dev` profile [unoptimized + debuginfo] target(s) in 3m 15s

shrug

bombela 16d

And the difference is more useful in the more common scenario of editing code and checking it. Though those days, language servers like rust-analyzer do essentially replace cargo check.

Taking the alacritty project and modifying the source files to pretend something happened:

    > cargo clean
      Removed 1602 files, 545.8MiB total
    > cargo check 
    [...]
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.12s
    > cargo build
    [...]
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.04s
    > find alacritty_terminal/ -name "*.rs" | xargs-I{} sh -c 'echo >> "{}"'
    > cargo check
    [...]
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.00s
    > cargo build
    [...]
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.37s

I wish it was faster, but I will take the speedup that I can!

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