wasmer_cache/
cache.rs

1//! The cache module provides the common data structures used by compiler backends to allow
2//! serializing compiled wasm code to a binary format.  The binary format can be persisted,
3//! and loaded to allow skipping compilation and fast startup.
4
5use crate::hash::Hash;
6use std::error::Error;
7use wasmer::{AsEngineRef, Module};
8
9/// A generic cache for storing and loading compiled wasm modules.
10pub trait Cache {
11    /// The serialization error for the implementation
12    type SerializeError: Error + Send + Sync;
13    /// The deserialization error for the implementation
14    type DeserializeError: Error + Send + Sync;
15
16    /// Loads a module using the provided [`wasmer::Store`] and [`crate::Hash`].
17    ///
18    /// # Safety
19    /// This function is unsafe as the cache store could be tampered with.
20    unsafe fn load(
21        &self,
22        engine: &impl AsEngineRef,
23        key: Hash,
24    ) -> Result<Module, Self::DeserializeError>;
25
26    /// Store a [`Module`] into the cache with the given [`crate::Hash`].
27    fn store(&mut self, key: Hash, module: &Module) -> Result<(), Self::SerializeError>;
28}
wasmer_cache/cache.rs

wasmer_cache/
cache.rs
