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Invert std::error and thiserror::Error

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Alexandre Senges 2023-08-14 16:55:06 +02:00 committed by GitHub
parent 2721f979ea
commit 0ac245ee61
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1 changed files with 3 additions and 3 deletions
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6
src/error-handling/dynamic-errors.md
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@ -6,13 +6,13 @@ all the different possibilities. `std::error::Error` makes this easy.
```rust,editable,compile_fail ```rust,editable,compile_fail
use std::fs; use std::fs;
use std::io::Read; use std::io::Read;
use std::error::Error; use thiserror::Error;
#[derive(Clone, Debug, Eq, thiserror::Error, PartialEq)] #[derive(Clone, Debug, Eq, Error, PartialEq)]
#[error("Found no username in {0}")] #[error("Found no username in {0}")]
struct EmptyUsernameError(String); struct EmptyUsernameError(String);
fn read_username(path: &str) -> Result<String, Box<dyn Error>> { fn read_username(path: &str) -> Result<String, Box<dyn std::error::Error>> {
let mut username = String::new(); let mut username = String::new();
fs::File::open(path)?.read_to_string(&mut username)?; fs::File::open(path)?.read_to_string(&mut username)?;
if username.is_empty() { if username.is_empty() {