46 lines
1.4 KiB
Rust
46 lines
1.4 KiB
Rust
|
#![feature(plugin)]
|
||
|
|
#![plugin(clippy)]
|
||
|
|
#![deny(useless_transmute)]
|
||
|
|
|
||
|
|
extern crate core;
|
||
|
|
|
||
|
|
use std::mem::transmute as my_transmute;
|
||
|
|
use std::vec::Vec as MyVec;
|
||
|
|
|
||
|
|
fn my_vec() -> MyVec<i32> {
|
||
|
|
vec![]
|
||
|
|
}
|
||
|
|
|
||
|
|
#[allow(needless_lifetimes)]
|
||
|
|
unsafe fn _generic<'a, T, U: 'a>(t: &'a T) {
|
||
|
|
let _: &'a T = core::intrinsics::transmute(t);
|
||
|
|
//~^ ERROR transmute from a type (`&'a T`) to itself
|
||
|
|
|
||
|
|
let _: &'a U = core::intrinsics::transmute(t);
|
||
|
|
}
|
||
|
|
|
||
|
|
fn main() {
|
||
|
|
unsafe {
|
||
|
|
let _: Vec<i32> = core::intrinsics::transmute(my_vec());
|
||
|
|
//~^ ERROR transmute from a type (`collections::vec::Vec<i32>`) to itself
|
||
|
|
|
||
|
|
let _: Vec<i32> = core::mem::transmute(my_vec());
|
||
|
|
//~^ ERROR transmute from a type (`collections::vec::Vec<i32>`) to itself
|
||
|
|
|
||
|
|
let _: Vec<i32> = std::intrinsics::transmute(my_vec());
|
||
|
|
//~^ ERROR transmute from a type (`collections::vec::Vec<i32>`) to itself
|
||
|
|
|
||
|
|
let _: Vec<i32> = std::mem::transmute(my_vec());
|
||
|
|
//~^ ERROR transmute from a type (`collections::vec::Vec<i32>`) to itself
|
||
|
|
|
||
|
|
let _: Vec<i32> = my_transmute(my_vec());
|
||
|
|
//~^ ERROR transmute from a type (`collections::vec::Vec<i32>`) to itself
|
||
|
|
|
||
|
|
let _: Vec<u32> = core::intrinsics::transmute(my_vec());
|
||
|
|
let _: Vec<u32> = core::mem::transmute(my_vec());
|
||
|
|
let _: Vec<u32> = std::intrinsics::transmute(my_vec());
|
||
|
|
let _: Vec<u32> = std::mem::transmute(my_vec());
|
||
|
|
let _: Vec<u32> = my_transmute(my_vec());
|
||
|
|
}
|
||
|
|
}
|