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/// Type which will panic if dropped. | ||
/// | ||
/// If this is dropped during a panic, this will cause an abort. | ||
/// | ||
/// Use this to avoid letting unwinds cross through the FFI boundary, which is UB. | ||
pub struct PanicTrap { | ||
msg: &'static str, | ||
} | ||
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||
impl PanicTrap { | ||
#[inline] | ||
pub const fn new(msg: &'static str) -> Self { | ||
Self { msg } | ||
} | ||
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||
#[inline] | ||
pub const fn disarm(self) { | ||
std::mem::forget(self) | ||
} | ||
} | ||
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impl Drop for PanicTrap { | ||
fn drop(&mut self) { | ||
// Panic here will abort the process, assuming in an unwind. | ||
panic!("{}", self.msg) | ||
} | ||
} |
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