flowistry 0.4.0

Modular information flow analysis
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use log::info;
use std::time::Instant;

pub fn elapsed(name: &str, start: Instant) {
  info!("{} took {}s", name, start.elapsed().as_secs_f64());
}

pub struct BlockTimer<'a> {
  pub name: &'a str,
  pub start: Instant,
}

impl Drop for BlockTimer<'_> {
  fn drop(&mut self) {
    elapsed(self.name, self.start);
  }
}

#[macro_export]
macro_rules! block_timer {
  ($name:expr) => {
    let name = $name;
    let start = std::time::Instant::now();
    let _timer = $crate::timer::BlockTimer { name, start };
  };
}