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// revisions: current next
//[next] compile-flags: -Ztrait-solver=next
#![crate_type = "lib"]
#![feature(transmutability)]
#![allow(dead_code)]
#![allow(incomplete_features)]
mod assert {
use std::mem::BikeshedIntrinsicFrom;
struct Context;
pub fn is_transmutable<Src, Dst>()
where
Dst: BikeshedIntrinsicFrom<Src, Context>
{}
}
fn should_accept_identity() {
assert::is_transmutable::< i8, i8>();
assert::is_transmutable::< u8, u8>();
assert::is_transmutable::< i16, i16>();
assert::is_transmutable::< u16, u16>();
assert::is_transmutable::< i32, i32>();
assert::is_transmutable::< f32, f32>();
assert::is_transmutable::< u32, u32>();
assert::is_transmutable::< i64, i64>();
assert::is_transmutable::< f64, f64>();
assert::is_transmutable::< u64, u64>();
assert::is_transmutable::< i128, i128>();
assert::is_transmutable::< u128, u128>();
assert::is_transmutable::<isize, isize>();
assert::is_transmutable::<usize, usize>();
}
fn should_be_bitransmutable() {
assert::is_transmutable::< i8, u8>();
assert::is_transmutable::< u8, i8>();
assert::is_transmutable::< i16, u16>();
assert::is_transmutable::< u16, i16>();
assert::is_transmutable::< i32, f32>();
assert::is_transmutable::< i32, u32>();
assert::is_transmutable::< f32, i32>();
assert::is_transmutable::< f32, u32>();
assert::is_transmutable::< u32, i32>();
assert::is_transmutable::< u32, f32>();
assert::is_transmutable::< u64, i64>();
assert::is_transmutable::< u64, f64>();
assert::is_transmutable::< i64, u64>();
assert::is_transmutable::< i64, f64>();
assert::is_transmutable::< f64, u64>();
assert::is_transmutable::< f64, i64>();
assert::is_transmutable::< u128, i128>();
assert::is_transmutable::< i128, u128>();
assert::is_transmutable::<isize, usize>();
assert::is_transmutable::<usize, isize>();
}
fn should_reject_extension() {
assert::is_transmutable::< i8, i16>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< i8, u16>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< i8, i32>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< i8, f32>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< i8, u32>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< i8, u64>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< i8, i64>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< i8, f64>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< i8, u128>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< i8, i128>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< u8, i16>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< u8, u16>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< u8, i32>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< u8, f32>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< u8, u32>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< u8, u64>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< u8, i64>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< u8, f64>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< u8, u128>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< u8, i128>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< i16, i32>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< i16, f32>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< i16, u32>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< i16, u64>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< i16, i64>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< i16, f64>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< i16, u128>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< i16, i128>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< u16, i32>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< u16, f32>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< u16, u32>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< u16, u64>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< u16, i64>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< u16, f64>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< u16, u128>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< u16, i128>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< i32, u64>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< i32, i64>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< i32, f64>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< i32, u128>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< i32, i128>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< f32, u64>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< f32, i64>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< f32, f64>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< f32, u128>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< f32, i128>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< u32, u64>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< u32, i64>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< u32, f64>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< u32, u128>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< u32, i128>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< u64, u128>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< u64, i128>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< i64, u128>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< i64, i128>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< f64, u128>(); //~ ERROR cannot be safely transmuted
assert::is_transmutable::< f64, i128>(); //~ ERROR cannot be safely transmuted
}
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