//! Workarounds for Rust 1.63 where some things in the `static_assertions` //! crate do things that don't work in const contexts. We want to call them in //! const contexts in Rust versions where that's supported so that problems are //! caught at compile time, and fall back to dynamic asserts in Rust 1.63. #![allow(unused_macros)] macro_rules! assert_eq_size { ($x:ty, $y:ty) => { assert_eq!(core::mem::size_of::<$x>(), core::mem::size_of::<$y>()); }; } macro_rules! assert_eq_align { ($x:ty, $y:ty) => { assert_eq!(core::mem::align_of::<$x>(), core::mem::align_of::<$y>()); }; } macro_rules! const_assert_eq { ($x:expr, $y:expr) => { assert_eq!($x, $y); }; } macro_rules! const_assert_ne { ($x:expr, $y:expr) => { assert_ne!($x, $y); }; } macro_rules! const_assert { ($x:expr) => { assert!($x); }; }