Module wasm 

WASM plugin traits for compiling, instantiating, and calling WASM modules.

These traits abstract over a concrete WASM runtime (e.g. wasmtime) so the plugin host can work with any backend. The pd-wasm-wasmtime crate provides the production implementation via WasmtimeHost.

Design notes

• WasmImports closures have + Send + Sync + 'static bounds so they can be registered as wasmtime host functions, which require Send + Sync. WasmActor (Phase 5.6) uses Arc<Mutex<…>> for the outbox buffer.
• WasmModule exposes as_any() so the concrete WasmHost can downcast the Box<dyn WasmModule> it created back to its own type without a separate runtime registry.

Structs

WasmImports

Host function callbacks injected into a WASM module at instantiation.

Enums

WasmError

Errors that can occur during WASM module compilation, instantiation, or execution.

WasmVal

A WASM numeric value, used for function call arguments and return values.

Traits

WasmHost

Factory for compiling and instantiating WASM modules.

WasmInstance

A fully instantiated WASM module, ready to execute exported functions.

WasmModule

A compiled (but not yet instantiated) WASM module.