Method require_value_of

crates/kernel_cmdline/src/bytes.rs:197–203

Find the value of the kernel argument with the provided name, which must be present. Otherwise the same as [`Self::value_of`].

(&'a self, key: &T)

    ///
    /// Otherwise the same as [`Self::value_of`].
    pub fn require_value_of<T: AsRef<[u8]> + ?Sized>(&'a self, key: &T) -> Result<&'a [u8]> {
        let key = key.as_ref();
        self.value_of(key).ok_or_else(|| {
            let key = String::from_utf8_lossy(key);
            anyhow::anyhow!("Failed to find kernel argument '{key}'")
        })
    }

    /// Add a parameter to the command line if it doesn't already exist
    ///