Struct RequestScope 

pub struct RequestScope { /* private fields */ }

Available on crate feature di only.

Per-request dependency cache that stores resolved instances for the duration of a request.

Implementations

impl RequestScope

pub fn new() -> RequestScope

Available on native only.

Creates a new RequestScope with an empty cache.

Examples

use reinhardt_di::RequestScope;

let scope = RequestScope::new();

pub fn get<T>(&self) -> Option<Arc<T>>

where T: Any + Send + Sync,

Available on native only.

Retrieves a value from the request scope cache by type.

Returns None if no value of type T exists in the cache.

Examples

use reinhardt_di::RequestScope;

let scope = RequestScope::new();
scope.set(42i32);

let value = scope.get::<i32>().unwrap();
assert_eq!(*value, 42);

pub fn set<T>(&self, value: T)

where T: Any + Send + Sync,

Available on native only.

Stores a value in the request scope cache.

The value is stored by its type and can be retrieved later using get.

Examples

use reinhardt_di::RequestScope;

let scope = RequestScope::new();
scope.set(42i32);
scope.set("hello".to_string());

assert_eq!(*scope.get::<i32>().unwrap(), 42);
assert_eq!(*scope.get::<String>().unwrap(), "hello");

pub fn set_arc<T>(&self, value: Arc<T>)

where T: Any + Send + Sync,

Available on native only.

Stores a pre-wrapped Arc<T> in the request scope cache.

Unlike set, this method accepts an already-wrapped Arc value, avoiding the need to unwrap and re-wrap. This is useful when the value is produced by a factory that returns Arc<T>.

Examples

use reinhardt_di::RequestScope;
use std::sync::Arc;

let scope = RequestScope::new();
let value = Arc::new(42i32);
scope.set_arc(value);

assert_eq!(*scope.get::<i32>().unwrap(), 42);

impl RequestScope

pub fn deep_clone(&self) -> RequestScope

Available on native only.

Creates a deep clone of this scope with an independent cache.

The cloned scope contains the same cached entries as the original, but modifications to either scope will not affect the other.

Trait Implementations

impl Clone for RequestScope

fn clone(&self) -> RequestScope

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for RequestScope

fn default() -> RequestScope

Returns the “default value” for a type.