Struct MemoryStorage 

pub struct MemoryStorage { /* private fields */ }

Origin-scoped key/value storage that lives and dies with the process.

Correct, just not durable. It is the right provider for a test, for a private-browsing mode, and for an embedder that has not wired a real one yet, and it is what the storage semantics are asserted against.

Note what it is not: a fallback that silently loses data. chuzz’s current JavaScript shim is an in-memory localStorage that a page cannot distinguish from a real one, so a site’s settings vanish on reload with no diagnostic. That is a property of the shim rather than of in-memory storage, but an embedder choosing this deliberately should still know it is choosing it.

Implementations

impl MemoryStorage

pub fn new() -> Self

pub fn origin_count(&self) -> usize

How many origins hold anything. For tests that want to assert isolation rather than infer it.

Trait Implementations

impl Default for MemoryStorage

fn default() -> MemoryStorage

Returns the “default value” for a type.

impl StorageProvider for MemoryStorage

fn get(&self, origin: &OriginKey, key: &str) -> Option<String>

fn set( &self, origin: &OriginKey, key: &str, value: &str, ) -> Result<(), StorageError>

fn remove(&self, origin: &OriginKey, key: &str)

fn clear(&self, origin: &OriginKey)

Removes everything under origin, and nothing under any other.