mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-11-10 23:24:24 +00:00
114 lines
4 KiB
Rust
114 lines
4 KiB
Rust
#![feature(plugin, box_syntax, inclusive_range_syntax)]
|
|
#![plugin(clippy)]
|
|
|
|
#![deny(no_effect, unnecessary_operation)]
|
|
#![allow(dead_code)]
|
|
#![allow(path_statements)]
|
|
|
|
struct Unit;
|
|
struct Tuple(i32);
|
|
struct Struct {
|
|
field: i32
|
|
}
|
|
enum Enum {
|
|
Tuple(i32),
|
|
Struct { field: i32 },
|
|
}
|
|
|
|
fn get_number() -> i32 { 0 }
|
|
fn get_struct() -> Struct { Struct { field: 0 } }
|
|
|
|
unsafe fn unsafe_fn() -> i32 { 0 }
|
|
|
|
fn main() {
|
|
let s = get_struct();
|
|
let s2 = get_struct();
|
|
|
|
0; //~ERROR statement with no effect
|
|
s2; //~ERROR statement with no effect
|
|
Unit; //~ERROR statement with no effect
|
|
Tuple(0); //~ERROR statement with no effect
|
|
Struct { field: 0 }; //~ERROR statement with no effect
|
|
Struct { ..s }; //~ERROR statement with no effect
|
|
Enum::Tuple(0); //~ERROR statement with no effect
|
|
Enum::Struct { field: 0 }; //~ERROR statement with no effect
|
|
5 + 6; //~ERROR statement with no effect
|
|
*&42; //~ERROR statement with no effect
|
|
&6; //~ERROR statement with no effect
|
|
(5, 6, 7); //~ERROR statement with no effect
|
|
box 42; //~ERROR statement with no effect
|
|
..; //~ERROR statement with no effect
|
|
5..; //~ERROR statement with no effect
|
|
..5; //~ERROR statement with no effect
|
|
5..6; //~ERROR statement with no effect
|
|
5...6; //~ERROR statement with no effect
|
|
[42, 55]; //~ERROR statement with no effect
|
|
[42, 55][1]; //~ERROR statement with no effect
|
|
(42, 55).1; //~ERROR statement with no effect
|
|
[42; 55]; //~ERROR statement with no effect
|
|
[42; 55][13]; //~ERROR statement with no effect
|
|
let mut x = 0;
|
|
|| x += 5; //~ERROR statement with no effect
|
|
|
|
// Do not warn
|
|
get_number();
|
|
unsafe { unsafe_fn() };
|
|
|
|
Tuple(get_number()); //~ERROR statement can be reduced
|
|
//~^HELP replace it with
|
|
//~|SUGGESTION get_number();
|
|
Struct { field: get_number() }; //~ERROR statement can be reduced
|
|
//~^HELP replace it with
|
|
//~|SUGGESTION get_number();
|
|
Struct { ..get_struct() }; //~ERROR statement can be reduced
|
|
//~^HELP replace it with
|
|
//~|SUGGESTION get_number();
|
|
Enum::Tuple(get_number()); //~ERROR statement can be reduced
|
|
//~^HELP replace it with
|
|
//~|SUGGESTION get_number();
|
|
Enum::Struct { field: get_number() }; //~ERROR statement can be reduced
|
|
//~^HELP replace it with
|
|
//~|SUGGESTION get_number();
|
|
5 + get_number(); //~ERROR statement can be reduced
|
|
//~^HELP replace it with
|
|
//~|SUGGESTION 5;get_number();
|
|
*&get_number(); //~ERROR statement can be reduced
|
|
//~^HELP replace it with
|
|
//~|SUGGESTION &get_number();
|
|
&get_number(); //~ERROR statement can be reduced
|
|
//~^HELP replace it with
|
|
//~|SUGGESTION get_number();
|
|
(5, 6, get_number()); //~ERROR statement can be reduced
|
|
//~^HELP replace it with
|
|
//~|SUGGESTION 5;6;get_number();
|
|
box get_number(); //~ERROR statement can be reduced
|
|
//~^HELP replace it with
|
|
//~|SUGGESTION get_number();
|
|
get_number()..; //~ERROR statement can be reduced
|
|
//~^HELP replace it with
|
|
//~|SUGGESTION get_number();
|
|
..get_number(); //~ERROR statement can be reduced
|
|
//~^HELP replace it with
|
|
//~|SUGGESTION get_number();
|
|
5..get_number(); //~ERROR statement can be reduced
|
|
//~^HELP replace it with
|
|
//~|SUGGESTION 5;get_number();
|
|
[42, get_number()]; //~ERROR statement can be reduced
|
|
//~^HELP replace it with
|
|
//~|SUGGESTION 42;get_number();
|
|
[42, 55][get_number() as usize]; //~ERROR statement can be reduced
|
|
//~^HELP replace it with
|
|
//~|SUGGESTION [42, 55];get_number() as usize;
|
|
(42, get_number()).1; //~ERROR statement can be reduced
|
|
//~^HELP replace it with
|
|
//~|SUGGESTION 42;get_number();
|
|
[get_number(); 55]; //~ERROR statement can be reduced
|
|
//~^HELP replace it with
|
|
//~|SUGGESTION get_number();
|
|
[42; 55][get_number() as usize]; //~ERROR statement can be reduced
|
|
//~^HELP replace it with
|
|
//~|SUGGESTION [42; 55];get_number() as usize;
|
|
{get_number()}; //~ERROR statement can be reduced
|
|
//~^HELP replace it with
|
|
//~|SUGGESTION get_number();
|
|
}
|