trpl-zh-cn/listings/ch20-advanced-features/no-listing-06-result-alias/src/lib.rs

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2022-02-06 16:43:51 +08:00
use std::fmt;
// ANCHOR: here
type Result<T> = std::result::Result<T, std::io::Error>;
// ANCHOR_END: here
// ANCHOR: there
pub trait Write {
fn write(&mut self, buf: &[u8]) -> Result<usize>;
fn flush(&mut self) -> Result<()>;
fn write_all(&mut self, buf: &[u8]) -> Result<()>;
fn write_fmt(&mut self, fmt: fmt::Arguments) -> Result<()>;
}
// ANCHOR_END: there