Enum StorageError 

#[non_exhaustive]
pub enum StorageError {
    InvalidKey,
    TooLarge {
        len: usize,
        limit: usize,
    },
    QuotaExceeded,
    Unavailable(String),
    NotUtf8,
    Io(String),
}

Why a storage operation did not do what it was asked.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

InvalidKey

The key breaks the rules: 1 to 128 bytes of a-z, 0-9, -, _ and ., not starting with .. Nothing was read or written.

TooLarge

The value is len bytes, more than the limit it may be. Nothing was written, and nothing was cut short.

Fields

len: usize

limit: usize

QuotaExceeded

The disk or the browser’s quota is full. The value that was there is still there.

Unavailable(String)

This run has no storage: no application identifier, no directory the platform can name, or a browser that refuses storage. The text says which.

NotUtf8

read_string found a value that is not UTF-8.

Io(String)

Any other failure, in the words the platform gave.

Trait Implementations

impl Clone for StorageError

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for StorageError

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

Formats the value using the given formatter.

impl Display for StorageError

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

Formats the value using the given formatter.

impl Eq for StorageError

impl Error for StorageError

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

Returns 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.

impl PartialEq for StorageError

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for StorageError