| #![warn(clippy::ineffective_open_options)] |
| |
| use std::fs::OpenOptions; |
| |
| fn main() { |
| let file = OpenOptions::new() |
| .create(true) |
| .write(true) //~ ERROR: unnecessary use of `.write(true)` |
| .append(true) |
| .open("dump.json") |
| .unwrap(); |
| |
| let file = OpenOptions::new() |
| .create(true) |
| .append(true) |
| .write(true) //~ ERROR: unnecessary use of `.write(true)` |
| .open("dump.json") |
| .unwrap(); |
| |
| // All the next calls are ok. |
| let file = OpenOptions::new() |
| .create(true) |
| .write(false) |
| .append(true) |
| .open("dump.json") |
| .unwrap(); |
| let file = OpenOptions::new() |
| .create(true) |
| .truncate(true) |
| .write(true) |
| .append(false) |
| .open("dump.json") |
| .unwrap(); |
| let file = OpenOptions::new() |
| .create(true) |
| .truncate(true) |
| .write(false) |
| .append(false) |
| .open("dump.json") |
| .unwrap(); |
| let file = OpenOptions::new().create(true).append(true).open("dump.json").unwrap(); |
| let file = OpenOptions::new() |
| .create(true) |
| .truncate(true) |
| .write(true) |
| .open("dump.json") |
| .unwrap(); |
| } |