Struct magic::cookie::LoadError

pub struct LoadError<S: State> { /* private fields */ }

Error within Cookie::load() or Cookie::load_buffers()

This is like cookie:Error but also has the cookie in its original state.

Examples

let cookie = magic::Cookie::open(Default::default())?;
let database = "data/tests/db-images-png".try_into()?;
// try to load an existing database, consuming and returning early
let cookie = cookie.load(&database)?;

let database = "doesntexist.mgc".try_into()?;
// load a database that does not exist
let cookie = match cookie.load(&database) {
    Err(err) => {
        println!("whoopsie: {:?}", err);
        // recover the loaded cookie without dropping it
        err.cookie()
    },
    Ok(cookie) => cookie,
};

let database = "data/tests/db-python".try_into()?;
// try to load another existing database
let cookie = cookie.load(&database)?;

Implementations

impl<S: State> LoadError<S>

pub fn cookie(self) -> Cookie<S>

Returns the cookie in its original state

Trait Implementations

impl<S: Debug + State> Debug for LoadError<S>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<S: State> Display for LoadError<S>

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<S: State> Error for LoadError<S>

where Self: Debug + Display,

fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type based access to context intended for error reports.