【Rust日报】 2020-04-10 Ok-Wrapping的心理模型

// Ok-Wrapping
fn foo() -> Result<PathBuf, io::Error> {
    let base = env::current_dir()?;
    Ok(base.join("foo"))
}
// use exception
fn foo() -> PathBuf throws io::Error {
    let base = env::current_dir()?;
    base.join("foo")
}
//Try Functions
#![feature(try_blocks)]
fn foo() -> Result<PathBuf, io::Error> {
    try {
        let base = env::current_dir()?;
        base.join("foo")
    }
}

https://yaah.dev/try-blocks