multiversx_sc_wasm_adapter/
error_hook.rs

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extern "C" {
    fn signalError(messageOffset: *const u8, messageLength: i32) -> !;
}

#[inline(always)]
pub(crate) fn signal_error(message: &[u8]) -> ! {
    unsafe { signalError(message.as_ptr(), message.len() as i32) }
}