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Fix invalid special casing of the unreachable! macro

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Loïc BRANSTETT 2022-01-21 23:04:06 +01:00
parent 86f5e177bc
commit 565710b33c
15 changed files with 140 additions and 19 deletions
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16
library/core/src/macros/mod.rs
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@ -594,6 +594,22 @@ macro_rules! writeln {
/// unreachable!("The loop should always return");
/// }
/// ```
#[cfg(not(bootstrap))]
#[macro_export]
#[rustc_builtin_macro(unreachable)]
#[allow_internal_unstable(edition_panic)]
#[stable(feature = "rust1", since = "1.0.0")]
#[cfg_attr(not(test), rustc_diagnostic_item = "unreachable_macro")]
macro_rules! unreachable {
// Expands to either `$crate::panic::unreachable_2015` or `$crate::panic::unreachable_2021`
// depending on the edition of the caller.
($($arg:tt)*) => {
/* compiler built-in */
};
}
/// unreachable!() macro
#[cfg(bootstrap)]
#[macro_export]
#[stable(feature = "rust1", since = "1.0.0")]
#[cfg_attr(not(test), rustc_diagnostic_item = "unreachable_macro")]