a61126cef6
fixes #117448 For example unnecessary imports in std::prelude that can be eliminated: ```rust use std::option::Option::Some;//~ WARNING the item `Some` is imported redundantly use std::option::Option::None; //~ WARNING the item `None` is imported redundantly ```
20 lines
668 B
Rust
20 lines
668 B
Rust
//@ check-pass
|
|
#![warn(unused_imports)]
|
|
|
|
|
|
use std::option::Option::Some;//~ WARNING the item `Some` is imported redundantly
|
|
use std::option::Option::None; //~ WARNING the item `None` is imported redundantly
|
|
|
|
use std::result::Result::Ok;//~ WARNING the item `Ok` is imported redundantly
|
|
use std::result::Result::Err;//~ WARNING the item `Err` is imported redundantly
|
|
use std::convert::{TryFrom, TryInto};
|
|
|
|
fn main() {
|
|
let _a: Option<i32> = Some(1);
|
|
let _b: Option<i32> = None;
|
|
let _c: Result<i32, String> = Ok(1);
|
|
let _d: Result<i32, &str> = Err("error");
|
|
let _e: Result<i32, _> = 8u8.try_into();
|
|
let _f: Result<i32, _> = i32::try_from(8u8);
|
|
}
|