| #![warn(clippy::from_raw_with_void_ptr)] |
| #![allow(clippy::unnecessary_cast)] |
| |
| use std::ffi::c_void; |
| use std::rc::Rc; |
| use std::sync::Arc; |
| |
| fn main() { |
| // must lint |
| let ptr = Box::into_raw(Box::new(42usize)) as *mut c_void; |
| let _ = unsafe { Box::from_raw(ptr) }; |
| //~^ ERROR: creating a `Box` from a void raw pointer |
| |
| // shouldn't be linted |
| let _ = unsafe { Box::from_raw(ptr as *mut usize) }; |
| |
| // shouldn't be linted |
| let should_not_lint_ptr = Box::into_raw(Box::new(12u8)) as *mut u8; |
| let _ = unsafe { Box::from_raw(should_not_lint_ptr as *mut u8) }; |
| |
| // must lint |
| let ptr = Rc::into_raw(Rc::new(42usize)) as *mut c_void; |
| let _ = unsafe { Rc::from_raw(ptr) }; |
| //~^ ERROR: creating a `Rc` from a void raw pointer |
| |
| // must lint |
| let ptr = Arc::into_raw(Arc::new(42usize)) as *mut c_void; |
| let _ = unsafe { Arc::from_raw(ptr) }; |
| //~^ ERROR: creating a `Arc` from a void raw pointer |
| |
| // must lint |
| let ptr = std::rc::Weak::into_raw(Rc::downgrade(&Rc::new(42usize))) as *mut c_void; |
| let _ = unsafe { std::rc::Weak::from_raw(ptr) }; |
| //~^ ERROR: creating a `Weak` from a void raw pointer |
| |
| // must lint |
| let ptr = std::sync::Weak::into_raw(Arc::downgrade(&Arc::new(42usize))) as *mut c_void; |
| let _ = unsafe { std::sync::Weak::from_raw(ptr) }; |
| //~^ ERROR: creating a `Weak` from a void raw pointer |
| } |