rust-clippy/tests/ui/redundant_allocation.rs
2022-03-30 20:12:58 +02:00

100 lines
2 KiB
Rust

#![warn(clippy::all)]
#![allow(clippy::boxed_local, clippy::needless_pass_by_value)]
#![allow(clippy::blacklisted_name, unused_variables, dead_code)]
#![allow(unused_imports)]
pub struct MyStruct;
pub struct SubT<T> {
foo: T,
}
pub enum MyEnum {
One,
Two,
}
mod outer_box {
use crate::MyEnum;
use crate::MyStruct;
use crate::SubT;
use std::boxed::Box;
use std::rc::Rc;
use std::sync::Arc;
pub fn box_test6<T>(foo: Box<Rc<T>>) {}
pub fn box_test7<T>(foo: Box<Arc<T>>) {}
pub fn box_test8() -> Box<Rc<SubT<usize>>> {
unimplemented!();
}
pub fn box_test9<T>(foo: Box<Arc<T>>) -> Box<Arc<SubT<T>>> {
unimplemented!();
}
}
mod outer_rc {
use crate::MyEnum;
use crate::MyStruct;
use crate::SubT;
use std::boxed::Box;
use std::rc::Rc;
use std::sync::Arc;
pub fn rc_test5(a: Rc<Box<bool>>) {}
pub fn rc_test7(a: Rc<Arc<bool>>) {}
pub fn rc_test8() -> Rc<Box<SubT<usize>>> {
unimplemented!();
}
pub fn rc_test9<T>(foo: Rc<Arc<T>>) -> Rc<Arc<SubT<T>>> {
unimplemented!();
}
}
mod outer_arc {
use crate::MyEnum;
use crate::MyStruct;
use crate::SubT;
use std::boxed::Box;
use std::rc::Rc;
use std::sync::Arc;
pub fn arc_test5(a: Arc<Box<bool>>) {}
pub fn arc_test6(a: Arc<Rc<bool>>) {}
pub fn arc_test8() -> Arc<Box<SubT<usize>>> {
unimplemented!();
}
pub fn arc_test9<T>(foo: Arc<Rc<T>>) -> Arc<Rc<SubT<T>>> {
unimplemented!();
}
}
// https://github.com/rust-lang/rust-clippy/issues/7487
mod box_dyn {
use std::boxed::Box;
use std::rc::Rc;
use std::sync::Arc;
pub trait T {}
struct S {
a: Box<Box<dyn T>>,
b: Rc<Box<dyn T>>,
c: Arc<Box<dyn T>>,
}
pub fn test_box(_: Box<Box<dyn T>>) {}
pub fn test_rc(_: Rc<Box<dyn T>>) {}
pub fn test_arc(_: Arc<Box<dyn T>>) {}
pub fn test_rc_box(_: Rc<Box<Box<dyn T>>>) {}
}
fn main() {}