mirror of
https://gitee.com/openharmony/third_party_rust_static-assertions-rs
synced 2024-11-23 07:20:33 +00:00
Rename assert_{ne,eq}_type!
macros
Makes them more similar to the API exposed by `assert_impl` macros.
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@ -1,4 +1,4 @@
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/// Asserts that types are equal.
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/// Asserts that _all_ types in a list are equal to each other.
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///
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/// # Examples
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///
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@ -10,7 +10,7 @@
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/// # #[macro_use] extern crate static_assertions; fn main() {}
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/// use std::os::raw::c_float;
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///
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/// assert_eq_type!(c_float, f32);
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/// assert_type_eq_all!(c_float, f32);
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/// ```
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///
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/// This macro can also be used to compare types that involve lifetimes! Just
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@ -21,7 +21,7 @@
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/// # fn main() {
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/// type Buf<'a> = &'a [u8];
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///
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/// assert_eq_type!(Buf<'static>, &'static [u8]);
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/// assert_type_eq_all!(Buf<'static>, &'static [u8]);
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/// # }
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/// ```
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///
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@ -30,7 +30,7 @@
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///
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/// ```compile_fail
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/// # #[macro_use] extern crate static_assertions; fn main() {}
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/// assert_eq_type!(String, str);
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/// assert_type_eq_all!(String, str);
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/// ```
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///
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/// This should also work the other way around, regardless of [`Deref`]
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@ -38,13 +38,13 @@
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///
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/// ```compile_fail
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/// # #[macro_use] extern crate static_assertions; fn main() {}
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/// assert_eq_type!(str, String);
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/// assert_type_eq_all!(str, String);
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/// ```
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///
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/// [`c_float`]: https://doc.rust-lang.org/std/os/raw/type.c_float.html
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/// [`Deref`]: https://doc.rust-lang.org/std/ops/trait.Deref.html
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#[macro_export]
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macro_rules! assert_eq_type {
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macro_rules! assert_type_eq_all {
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($x:ty, $($xs:ty),+ $(,)*) => {
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const _: fn() = || { $({
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trait TypeEq {
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@ -53,13 +53,13 @@ macro_rules! assert_eq_type {
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impl<T: ?Sized> TypeEq for T {
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type This = Self;
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}
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fn assert_eq_type<T: ?Sized, U: ?Sized>() where T: TypeEq<This = U> {}
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assert_eq_type::<$x, $xs>();
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fn assert_type_eq_all<T: ?Sized, U: ?Sized>() where T: TypeEq<This = U> {}
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assert_type_eq_all::<$x, $xs>();
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})+ };
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};
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}
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/// Asserts that types are _not_ equal.
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/// Asserts that _all_ types are **not** equal to each other.
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///
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/// # Examples
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///
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@ -67,7 +67,7 @@ macro_rules! assert_eq_type {
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///
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/// ```
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/// # #[macro_use] extern crate static_assertions; fn main() {}
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/// assert_ne_type!([u8], [u16], str);
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/// assert_type_ne_all!([u8], [u16], str);
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/// ```
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///
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/// The following example fails to compile because [`c_uchar`] is a type alias
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@ -77,13 +77,13 @@ macro_rules! assert_eq_type {
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/// # #[macro_use] extern crate static_assertions; fn main() {}
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/// use std::os::raw::c_uchar;
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///
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/// assert_ne_type!(c_uchar, u8, u32);
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/// assert_type_ne_all!(c_uchar, u8, u32);
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/// ```
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///
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/// [`c_uchar`]: https://doc.rust-lang.org/std/os/raw/type.c_uchar.html
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/// [`u8`]: https://doc.rust-lang.org/std/primitive.u8.html
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#[macro_export]
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macro_rules! assert_ne_type {
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macro_rules! assert_type_ne_all {
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($x:ty, $($y:ty),+ $(,)?) => {
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const _: fn() = || {
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trait MutuallyExclusive {}
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@ -4,11 +4,11 @@
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#[macro_use]
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extern crate static_assertions;
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assert_eq_type!([u8], [u8]);
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assert_type_eq_all!([u8], [u8]);
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#[allow(dead_code)]
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type X = u8;
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mod m {
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assert_eq_type!(super::X, u8, (super::X));
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assert_type_eq_all!(super::X, u8, (super::X));
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}
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@ -4,4 +4,4 @@
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#[macro_use]
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extern crate static_assertions;
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assert_ne_type!(u8, u16, u32);
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assert_type_ne_all!(u8, u16, u32);
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