dualcache_ff/static_cache/
stub.rs

1use core::marker::PhantomData;
2
3/// A zero-overhead, completely compiled-away stub implementation of the DualCache API.
4/// All methods are marked with `#[inline(always)]` and evaluate to no-ops.
5/// Suitable for ultra-constrained bare-metal environments where caching is compiled out.
6#[derive(Debug, Clone)]
7pub struct DualCacheStub<K, V> {
8    _marker: PhantomData<(K, V)>,
9}
10
11impl<K, V> DualCacheStub<K, V> {
12    /// Create a new stub cache instance (which does nothing).
13    #[inline(always)]
14    pub fn new(_config: crate::Config) -> Self {
15        Self {
16            _marker: PhantomData,
17        }
18    }
19
20    /// Exposes API parity with `DualCacheFF::new_headless`
21    #[inline(always)]
22    pub fn new_headless(_config: crate::Config) -> (Self, ()) {
23        (
24            Self {
25                _marker: PhantomData,
26            },
27            (),
28        )
29    }
30
31    /// Exposes API parity with `DualCacheFF::get`
32    #[inline(always)]
33    pub fn get(&self, _key: &K) -> Option<V> {
34        None
35    }
36
37    /// Exposes API parity with `DualCacheFF::insert`
38    #[inline(always)]
39    pub fn insert(&self, _key: K, _value: V) {}
40
41    /// Exposes API parity with `DualCacheFF::remove`
42    #[inline(always)]
43    pub fn remove(&self, _key: &K) {}
44
45    /// Exposes API parity with `DualCacheFF::clear`
46    #[inline(always)]
47    pub fn clear(&self) {}
48
49    /// Exposes API parity with `DualCacheFF::sync`
50    #[inline(always)]
51    pub fn sync(&self) {}
52}
dualcache_ff/static_cache/stub.rs

dualcache_ff/static_cache/
stub.rs
