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#![feature(box_syntax, fn_traits, unboxed_closures)]
#![warn(clippy::no_effect_underscore_binding)]
#![allow(dead_code)]
#![allow(path_statements)]
#![allow(clippy::deref_addrof)]
#![allow(clippy::redundant_field_names)]
struct Unit;
struct Tuple(i32);
struct Struct {
field: i32,
}
enum Enum {
Tuple(i32),
Struct { field: i32 },
}
struct DropUnit;
impl Drop for DropUnit {
fn drop(&mut self) {}
}
struct DropStruct {
field: i32,
}
impl Drop for DropStruct {
fn drop(&mut self) {}
}
struct DropTuple(i32);
impl Drop for DropTuple {
fn drop(&mut self) {}
}
enum DropEnum {
Tuple(i32),
Struct { field: i32 },
}
impl Drop for DropEnum {
fn drop(&mut self) {}
}
struct FooString {
s: String,
}
union Union {
a: u8,
b: f64,
}
fn get_number() -> i32 {
0
}
fn get_struct() -> Struct {
Struct { field: 0 }
}
fn get_drop_struct() -> DropStruct {
DropStruct { field: 0 }
}
unsafe fn unsafe_fn() -> i32 {
0
}
struct GreetStruct1;
impl FnOnce<(&str,)> for GreetStruct1 {
type Output = ();
extern "rust-call" fn call_once(self, (who,): (&str,)) -> Self::Output {
println!("hello {}", who);
}
}
struct GreetStruct2();
impl FnOnce<(&str,)> for GreetStruct2 {
type Output = ();
extern "rust-call" fn call_once(self, (who,): (&str,)) -> Self::Output {
println!("hello {}", who);
}
}
struct GreetStruct3;
impl FnOnce<(&str,)> for GreetStruct3 {
type Output = ();
extern "rust-call" fn call_once(self, (who,): (&str,)) -> Self::Output {
println!("hello {}", who);
}
}
fn main() {
let s = get_struct();
let s2 = get_struct();
0;
s2;
Unit;
Tuple(0);
Struct { field: 0 };
Struct { ..s };
Union { a: 0 };
Enum::Tuple(0);
Enum::Struct { field: 0 };
5 + 6;
*&42;
&6;
(5, 6, 7);
box 42;
..;
5..;
..5;
5..6;
5..=6;
[42, 55];
[42, 55][1];
(42, 55).1;
[42; 55];
[42; 55][13];
let mut x = 0;
|| x += 5;
let s: String = "foo".into();
FooString { s: s };
let _unused = 1;
let _penguin = || println!("Some helpful closure");
let _duck = Struct { field: 0 };
let _cat = [2, 4, 6, 8][2];
#[allow(clippy::no_effect)]
0;
// Do not warn
get_number();
unsafe { unsafe_fn() };
let _used = get_struct();
let _x = vec![1];
DropUnit;
DropStruct { field: 0 };
DropTuple(0);
DropEnum::Tuple(0);
DropEnum::Struct { field: 0 };
GreetStruct1("world");
GreetStruct2()("world");
GreetStruct3 {}("world");
}
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