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