Struct InMemoryObjectStore 

pub struct InMemoryObjectStore { /* private fields */ }

In-memory object store for tests and local development.

Thread-safe; all ops hold a Mutex for the minimum duration. put_if holds the lock across the read+write so the compare-and-swap is genuinely atomic, matching R2’s server-side conditional-write semantics.

Implementations

impl InMemoryObjectStore

pub fn new() -> Self

pub fn contains_key(&self, key: &str) -> bool

Returns true when key exists (test helper — synchronous, no Result).

pub fn keys(&self) -> Vec<String>

Keys currently stored (test helper).

pub fn cache_control(&self, key: &str) -> Option<String>

Cache-Control the last write to key carried, or None if it was written through plain ObjectStore::put (test helper).

Trait Implementations

impl Default for InMemoryObjectStore

fn default() -> Self

Returns the “default value” for a type.

impl ObjectStore for InMemoryObjectStore

fn put(&self, key: &str, data: Vec<u8>) -> Result<(), Error>

Write data at key. Overwrites any existing object unconditionally.

fn put_cached( &self, key: &str, data: Vec<u8>, cache_control: &str, ) -> Result<(), Error>

Write data at key with an explicit Cache-Control (R703-B8).

fn get(&self, key: &str) -> Result<Option<Vec<u8>>, Error>

Read bytes at key. Returns None when the key does not exist — NotFound is reserved for ambiguous cases (HEAD-then-GET race etc.).

fn delete(&self, key: &str) -> Result<(), Error>

Remove key. Idempotent — succeeds whether or not the key existed.

fn list_prefix(&self, prefix: &str) -> Result<Vec<String>, Error>

List all keys with the given prefix (prefix-match, not glob).

fn etag(&self, key: &str) -> Result<Option<String>, Error>

Current ETag of key, or None if absent.

fn put_if( &self, key: &str, data: Vec<u8>, cond: Precondition, ) -> Result<String, Error>

Conditionally write data at key, returning the resulting ETag.

fn head(&self, key: &str) -> Result<bool, Error>

Returns true when key exists. Cheaper than get for backends that support HEAD; the default impl falls back to get(...).is_some().