src/tools/clippy/tests/ui/invalid_ref.rs

   1
   2
   3
   4 #![allow(unused)]
   5 #![feature(core_intrinsics)]
   6
   7 extern crate core;
   8 use std::intrinsics::{init, uninit};
   9
  10 fn main() {
  11     let x = 1;
  12     unsafe {
  13         ref_to_zeroed_std(&x);
  14         ref_to_zeroed_core(&x);
  15         ref_to_zeroed_intr(&x);
  16         ref_to_uninit_std(&x);
  17         ref_to_uninit_core(&x);
  18         ref_to_uninit_intr(&x);
  19         some_ref();
  20         std_zeroed_no_ref();
  21         core_zeroed_no_ref();
  22         intr_init_no_ref();
  23     }
  24 }
  25
  26 unsafe fn ref_to_zeroed_std<T: ?Sized>(t: &T) {
  27     let ref_zero: &T = std::mem::zeroed();     // warning
  28 }
  29
  30 unsafe fn ref_to_zeroed_core<T: ?Sized>(t: &T) {
  31     let ref_zero: &T = core::mem::zeroed();   // warning
  32 }
  33
  34 unsafe fn ref_to_zeroed_intr<T: ?Sized>(t: &T) {
  35     let ref_zero: &T = std::intrinsics::init();   // warning
  36 }
  37
  38 unsafe fn ref_to_uninit_std<T: ?Sized>(t: &T) {
  39     let ref_uninit: &T = std::mem::uninitialized();   // warning
  40 }
  41
  42 unsafe fn ref_to_uninit_core<T: ?Sized>(t: &T) {
  43     let ref_uninit: &T = core::mem::uninitialized();   // warning
  44 }
  45
  46 unsafe fn ref_to_uninit_intr<T: ?Sized>(t: &T) {
  47     let ref_uninit: &T = std::intrinsics::uninit();   // warning
  48 }
  49
  50 fn some_ref() {
  51     let some_ref = &1;
  52 }
  53
  54 unsafe fn std_zeroed_no_ref() {
  55     let mem_zero: usize = std::mem::zeroed();  // no warning
  56 }
  57
  58 unsafe fn core_zeroed_no_ref() {
  59     let mem_zero: usize = core::mem::zeroed();  // no warning
  60 }
  61
  62 unsafe fn intr_init_no_ref() {
  63     let mem_zero: usize = std::intrinsics::init(); // no warning
  64 }
  65
  66