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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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33
library/core/src/panic.rs
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@@ -58,6 +58,39 @@ pub macro panic_2021 {
),
}
#[doc(hidden)]
#[unstable(feature = "edition_panic", issue = "none", reason = "use unreachable!() instead")]
#[allow_internal_unstable(core_panic)]
#[rustc_diagnostic_item = "unreachable_2015_macro"]
#[rustc_macro_transparency = "semitransparent"]
pub macro unreachable_2015 {
() => (
$crate::panicking::panic("internal error: entered unreachable code")
),
// Use of `unreachable_display` for non_fmt_panic lint.
// NOTE: the message ("internal error ...") is embeded directly in unreachable_display
($msg:expr $(,)?) => (
$crate::panicking::unreachable_display(&$msg)
),
($fmt:expr, $($arg:tt)*) => (
$crate::panic!($crate::concat!("internal error: entered unreachable code: ", $fmt), $($arg)*)
),
}
#[doc(hidden)]
#[unstable(feature = "edition_panic", issue = "none", reason = "use unreachable!() instead")]
#[allow_internal_unstable(core_panic)]
#[rustc_diagnostic_item = "unreachable_2021_macro"]
#[rustc_macro_transparency = "semitransparent"]
pub macro unreachable_2021 {
() => (
$crate::panicking::panic("internal error: entered unreachable code")
),
($($t:tt)+) => (
$crate::panic!("internal error: entered unreachable code: {}", $crate::format_args!($($t)+))
),
}
/// An internal trait used by libstd to pass data from libstd to `panic_unwind`
/// and other panic runtimes. Not intended to be stabilized any time soon, do
/// not use.