diff options
Diffstat (limited to 'library/core/src/macros/mod.rs')
| -rw-r--r-- | library/core/src/macros/mod.rs | 61 |
1 files changed, 0 insertions, 61 deletions
diff --git a/library/core/src/macros/mod.rs b/library/core/src/macros/mod.rs index 9a91ff82acd..771c2d31b60 100644 --- a/library/core/src/macros/mod.rs +++ b/library/core/src/macros/mod.rs @@ -12,54 +12,6 @@ macro_rules! panic { }; } -/// Helper macro for panicking in a `const fn`. -/// Invoke as: -/// ```rust,ignore (just an example) -/// core::macros::const_panic!("boring message", "flavored message {a} {b:?}", a: u32 = foo.len(), b: Something = bar); -/// ``` -/// where the first message will be printed in const-eval, -/// and the second message will be printed at runtime. -// All uses of this macro are FIXME(const-hack). -#[unstable(feature = "panic_internals", issue = "none")] -#[doc(hidden)] -pub macro const_panic { - ($const_msg:literal, $runtime_msg:literal, $($arg:ident : $ty:ty = $val:expr),* $(,)?) => {{ - #[inline] - #[track_caller] - fn runtime($($arg: $ty),*) -> ! { - $crate::panic!($runtime_msg); - } - - #[inline] - #[track_caller] - const fn compiletime($(_: $ty),*) -> ! { - $crate::panic!($const_msg); - } - - // Wrap call to `const_eval_select` in a function so that we can - // add the `rustc_allow_const_fn_unstable`. This is okay to do - // because both variants will panic, just with different messages. - #[rustc_allow_const_fn_unstable(const_eval_select)] - #[inline(always)] - #[track_caller] - #[cfg_attr(bootstrap, rustc_const_stable(feature = "const_panic", since = "CURRENT_RUSTC_VERSION"))] - const fn do_panic($($arg: $ty),*) -> ! { - $crate::intrinsics::const_eval_select(($($arg),* ,), compiletime, runtime) - } - - do_panic($($val),*) - }}, - // We support leaving away the `val` expressions for *all* arguments - // (but not for *some* arguments, that's too tricky). - ($const_msg:literal, $runtime_msg:literal, $($arg:ident : $ty:ty),* $(,)?) => { - $crate::macros::const_panic!( - $const_msg, - $runtime_msg, - $($arg: $ty = $arg),* - ) - }, -} - /// Asserts that two expressions are equal to each other (using [`PartialEq`]). /// /// Assertions are always checked in both debug and release builds, and cannot @@ -244,19 +196,6 @@ pub macro assert_matches { }, } -/// A version of `assert` that prints a non-formatting message in const contexts. -/// -/// See [`const_panic!`]. -#[unstable(feature = "panic_internals", issue = "none")] -#[doc(hidden)] -pub macro const_assert { - ($condition: expr, $const_msg:literal, $runtime_msg:literal, $($arg:tt)*) => {{ - if !$crate::intrinsics::likely($condition) { - $crate::macros::const_panic!($const_msg, $runtime_msg, $($arg)*) - } - }} -} - /// A macro for defining `#[cfg]` match-like statements. /// /// It is similar to the `if/elif` C preprocessor macro by allowing definition of a cascade of |