这里有一个字面上的答案,但是don't actually use this!
#![feature(test)]
extern crate test;
#[path = "../src/foo.rs"] // Here
mod foo;
#[bench]
fn bencher(_: &mut test::Bencher) {
println!("{:?}", foo::Thang);
}
事实上,这很可能行不通,因为foo.rs
中的代码需要来自其他文件的支持代码,而这些文件不包括在内.
而不是这样做,just create a library.你有一个库的纯粹定义——一段希望在两个不同的可执行文件中使用的代码.你不必放弃拥有一个可执行文件,甚至不必创建单独的目录(参见Rust package with both a library and a binary?),但创建可重用代码是生成good代码的关键组成部分.
你的最终状态看起来像:
demo
├── Cargo.lock
├── Cargo.toml
├── benches
│ └── crypto_bench.rs
├── benchmarks
└── src
├── bin
│ └── main.rs
├── crypto.rs
└── lib.rs
将可重用代码移动到库中:
src/lib.rs
pub mod crypto;
src/crypto.rs
pub struct Crypto;
impl Crypto {
pub fn secret() {}
}
然后从基准和二进制文件导入库:
benches/crypto_bench.rs
#![feature(test)]
extern crate test;
use demo::crypto::Crypto;
use test::Bencher;
#[bench]
fn speedy(b: &mut Bencher) {
b.iter(|| Crypto::secret());
}
src/bin/main.rs
use demo::crypto::Crypto;
fn main() {
Crypto::secret();
eprintln!("Did the secret thing!");
}
然后,您可以用不同的方式运行它:
$ cargo build
Compiling demo v0.1.0 (/private/tmp/example)
Finished dev [unoptimized + debuginfo] target(s) in 0.51s
$ cargo run
Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Running `target/debug/main`
Did the secret thing!
$ cargo +nightly bench
Compiling demo v0.1.0 (/private/tmp/example)
Finished release [optimized] target(s) in 0.70s
Running target/release/deps/my_benchmark-5c9c5716763252a0
running 1 test
test speedy ... bench: 1 ns/iter (+/- 0)
test result: ok. 0 passed; 0 failed; 0 ignored; 1 measured; 0 filtered out
另见: