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// run-rustfix
#![feature(never_type)]
#![allow(unused_mut, unused_tuple_struct_fields, clippy::redundant_allocation)]
#![warn(clippy::must_use_candidate)]
use std::rc::Rc;
use std::sync::atomic::{AtomicBool, Ordering};
use std::sync::Arc;
pub struct MyAtomic(AtomicBool);
pub struct MyPure;
#[must_use] pub fn pure(i: u8) -> u8 {
i
}
impl MyPure {
#[must_use] pub fn inherent_pure(&self) -> u8 {
0
}
}
pub trait MyPureTrait {
fn trait_pure(&self, i: u32) -> u32 {
self.trait_impl_pure(i) + 1
}
fn trait_impl_pure(&self, i: u32) -> u32;
}
impl MyPureTrait for MyPure {
fn trait_impl_pure(&self, i: u32) -> u32 {
i
}
}
pub fn without_result() {
// OK
}
pub fn impure_primitive(i: &mut u8) -> u8 {
*i
}
pub fn with_callback<F: Fn(u32) -> bool>(f: &F) -> bool {
f(0)
}
#[must_use] pub fn with_marker(_d: std::marker::PhantomData<&mut u32>) -> bool {
true
}
pub fn quoth_the_raven(_more: !) -> u32 {
unimplemented!();
}
pub fn atomics(b: &AtomicBool) -> bool {
b.load(Ordering::SeqCst)
}
#[must_use] pub fn rcd(_x: Rc<u32>) -> bool {
true
}
pub fn rcmut(_x: Rc<&mut u32>) -> bool {
true
}
#[must_use] pub fn arcd(_x: Arc<u32>) -> bool {
false
}
pub fn inner_types(_m: &MyAtomic) -> bool {
true
}
static mut COUNTER: usize = 0;
/// # Safety
///
/// Don't ever call this from multiple threads
pub unsafe fn mutates_static() -> usize {
COUNTER += 1;
COUNTER
}
#[no_mangle]
pub extern "C" fn unmangled(i: bool) -> bool {
!i
}
fn main() {
assert_eq!(1, pure(1));
}
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