1de4b65d2a
1. Wherever the `buf` field of a `Formatter` was used, the `Formatter` is used instead. 2. The usage of `write_fmt` is minimized as much as possible, the `write!` macro is preferred wherever possible. 3. Usage of `fmt::write` is minimized, favoring the `write!` macro instead.
41 lines
972 B
Rust
41 lines
972 B
Rust
// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
|
|
// file at the top-level directory of this distribution and at
|
|
// http://rust-lang.org/COPYRIGHT.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
|
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
|
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
|
// option. This file may not be copied, modified, or distributed
|
|
// except according to those terms.
|
|
|
|
// ignore-tidy-linelength
|
|
|
|
use std::fmt;
|
|
|
|
struct Number {
|
|
n: i64
|
|
}
|
|
|
|
impl fmt::Show for Number {
|
|
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
|
write!(f, "{}", self.n)
|
|
}
|
|
}
|
|
|
|
struct List {
|
|
list: Vec<Box<ToStr>> }
|
|
|
|
impl List {
|
|
fn push(&mut self, n: Box<ToStr>) {
|
|
self.list.push(n);
|
|
}
|
|
}
|
|
|
|
fn main() {
|
|
let n = box Number { n: 42 };
|
|
let mut l = box List { list: Vec::new() };
|
|
l.push(n);
|
|
let x = n.to_str();
|
|
//~^ ERROR: use of moved value: `n`
|
|
}
|