23 lines
1.0 KiB
Rust
23 lines
1.0 KiB
Rust
use std::fs::OpenOptions;
|
|
|
|
#[allow(unused_must_use)]
|
|
#[warn(clippy::nonsensical_open_options)]
|
|
fn main() {
|
|
OpenOptions::new().read(true).truncate(true).open("foo.txt");
|
|
//~^ ERROR: file opened with `truncate` and `read`
|
|
//~| NOTE: `-D clippy::nonsensical-open-options` implied by `-D warnings`
|
|
OpenOptions::new().append(true).truncate(true).open("foo.txt");
|
|
//~^ ERROR: file opened with `append` and `truncate`
|
|
|
|
OpenOptions::new().read(true).read(false).open("foo.txt");
|
|
//~^ ERROR: the method `read` is called more than once
|
|
OpenOptions::new().create(true).create(false).open("foo.txt");
|
|
//~^ ERROR: the method `create` is called more than once
|
|
OpenOptions::new().write(true).write(false).open("foo.txt");
|
|
//~^ ERROR: the method `write` is called more than once
|
|
OpenOptions::new().append(true).append(false).open("foo.txt");
|
|
//~^ ERROR: the method `append` is called more than once
|
|
OpenOptions::new().truncate(true).truncate(false).open("foo.txt");
|
|
//~^ ERROR: the method `truncate` is called more than once
|
|
}
|