60ee2d1a2c
Adds `crates/wasm-actor/` (swactor-wasm-actor), which embeds wasmtime-sandboxed Wasm instances inside regular swactor actors. Messages flow as raw bytes through the guest ↔ host contract (alloc/handle exports, swactor.send import). The host drains an outbox after each handle call and routes messages via ctx.send(). Includes 3 no_std guest modules (echo, double, silent) and 7 integration tests covering roundtrip delivery, binary fidelity, multi-send, error cases, engine sharing, and native↔wasm interop. Authored by Claude, lovingly guided by Zachery Aaron Shores-Chmielewski
27 lines
774 B
Rust
27 lines
774 B
Rust
use std::fmt;
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/// Errors that can occur when building or running a WasmActor.
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#[derive(Debug)]
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pub enum WasmActorError {
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/// A required export is missing from the Wasm module.
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MissingExport(&'static str),
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/// The Wasm module failed to compile or instantiate.
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Wasmtime(wasmtime::Error),
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}
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impl fmt::Display for WasmActorError {
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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match self {
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Self::MissingExport(name) => write!(f, "missing required export: `{name}`"),
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Self::Wasmtime(e) => write!(f, "wasmtime error: {e}"),
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}
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}
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}
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impl std::error::Error for WasmActorError {}
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impl From<wasmtime::Error> for WasmActorError {
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fn from(e: wasmtime::Error) -> Self {
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Self::Wasmtime(e)
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}
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}
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