mirror of
https://github.com/rust-lang/rust.git
synced 2024-12-15 10:07:30 +00:00
29 lines
680 B
Rust
29 lines
680 B
Rust
#![warn(clippy::verbose_file_reads)]
|
|
use std::env::temp_dir;
|
|
use std::fs::File;
|
|
use std::io::Read;
|
|
|
|
struct Struct;
|
|
// To make sure we only warn on File::{read_to_end, read_to_string} calls
|
|
impl Struct {
|
|
pub fn read_to_end(&self) {}
|
|
|
|
pub fn read_to_string(&self) {}
|
|
}
|
|
|
|
fn main() -> std::io::Result<()> {
|
|
let path = "foo.txt";
|
|
// Lint shouldn't catch this
|
|
let s = Struct;
|
|
s.read_to_end();
|
|
s.read_to_string();
|
|
// Should catch this
|
|
let mut f = File::open(&path)?;
|
|
let mut buffer = Vec::new();
|
|
f.read_to_end(&mut buffer)?;
|
|
// ...and this
|
|
let mut string_buffer = String::new();
|
|
f.read_to_string(&mut string_buffer)?;
|
|
Ok(())
|
|
}
|