Method get_or_compile

nodedb/src/control/planner/wasm/runtime.rs:50–72

Get or compile a WASM module from raw bytes. Modules are cached by SHA-256 hash of the binary. First compilation is slow (Cranelift JIT); subsequent calls return the cached module.

(&self, wasm_bytes: &[u8])

    /// Modules are cached by SHA-256 hash of the binary. First compilation
    /// is slow (Cranelift JIT); subsequent calls return the cached module.
    pub fn get_or_compile(&self, wasm_bytes: &[u8]) -> crate::Result<Arc<Module>> {
        let hash = sha256(wasm_bytes);

        // Fast path: check cache.
        {
            let cache = self.module_cache.lock().unwrap_or_else(|p| p.into_inner());
            if let Some(module) = cache.get(&hash) {
                return Ok(Arc::clone(module));
            }
        }

        // Slow path: compile and cache.
        let module =
            Module::new(&self.engine, wasm_bytes).map_err(|e| crate::Error::BadRequest {
                detail: format!("WASM module compilation failed: {e}"),
            })?;
        let arc = Arc::new(module);

        let mut cache = self.module_cache.lock().unwrap_or_else(|p| p.into_inner());
        cache.entry(hash).or_insert_with(|| Arc::clone(&arc));

        Ok(arc)
    }

    /// Get a reference to the underlying wasmtime Engine.
    pub fn engine(&self) -> &Engine {