Conventions used

There are a number of text conventions used throughout this book.

Code in text: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: “So, now we have created our own async runtime that uses Rust’s Futures, Waker, Context, and async/await.”

A block of code is set as follows:

pub trait Future {
    type Output;
    fn poll(&mut self) -> PollState<Self::Output>;
}

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

struct Coroutine0 {
    stack: Stack0,
    state: State0,
}

Any command-line input or output is written as follows:

$ cargo run

Tips or important notes

Appear like this.