First real step toward the web/WASM target. The dependency graph is now
target-conditional: the legacy transports' OS-socket deps (tokio net, mdns-sd,
webrtc) + UniFFI + native reqwest live under cfg(not(wasm32)); wasm32 gets a
minimal tokio (sync/macros), the reqwest fetch backend, wasm-bindgen-futures, and
iroh with default-features off. The SSE/RTC/LAN transport modules are gated to
native (they need OS sockets). getrandom's wasm rng is wired (build-cfg for 0.4 +
the js-feature alias trick for the transitive 0.2).
Effect: `cargo build --target wasm32-unknown-unknown --features iroh-transport`
goes from "deps won't compile at all" to 15 well-understood errors, isolated to
four structural items: UniFFI (decouple the FFI layer for wasm), iroh's wasm
feature set (presets/gossip-net), the tokio runtime (→ spawn_local + ?Send), and
reqwest .timeout(). Native builds (default + iroh + examples) are byte-unaffected
— all verified clean.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Patrick Ecord
55340fe8f6
