Rust: Debugging and Profiling

Print

debug print

code: example.rs

struct Point {

x: i32,

y: i32,

}

let origin = Point { x: 0, y: 0 };

println!("The origin is: {:?}", origin);

dbg macro

(nightly version only for now)

code: example.rs

let a = 2;

let b = dbg!(a * 2) + 1;

assert_eq!(b, 5);

Type of variable

code: example.rs

fn type_of<T>(_: &T) -> &'static str {

unsafe { std::intrinsics::type_name::<T>() }

}

println!("{}", type_of(&x));

Logging

debug-assertions

debuginfo

debuginfo-lines

Backtrace

Debugger

gdb

LLDB + VSCode

Profiling

cargo-profiler