0.31.0-3

✨ What's New ✨

🟢 Node.js!

uniffi-bindgen-react-native can now generate bindings that run directly on Node.js, joining React Native and the Web as a supported target. A new N-API runtime — published to npm as @ubjs/node — loads your compiled Rust cdylib at runtime and calls into it, so a single prebuilt native addon works with any UniFFI library, with no per-library glue code to build. See the Node.js reference for how to get started.

• A new N-API runtime added under runtimes/ (#369), later refactored into layers (#385), with single-copy and string/byte optimizations across the FFI boundary (#378, #394).

• A new ubrn generate napi bindings command (aliased node) generates the TypeScript bindings, with the location of the cdylib resolved at bindgen time via colocated, absolute, or platform-package modes (#390, #398).

• The full fixture test suite now runs against the N-API flavour (#377, #382), including on Linux via colima.

• index.ts generation added to the player pipeline (#391); callback function identifiers are now suffixed with the module name to avoid collisions across crates (#393). Thank you @markharding!

• Published to npm via CI (#386); the runtime package is now @ubjs/node (#396) and the TypeScript runtime is now @ubjs/core (#399).

• Byte arrays (Vec<u8>) can now be globally emitted as Uint8Array instead of ArrayBuffer by setting bindings.typescript.strictByteArrays in uniffi.toml (#383 by @coriolinus).

🦊 What's Changed

• Migrate the wrapper-ffi.ts (#359) and wrapper.ts (#363) generation to the new pipeline API.
• Audit default-value positions and types, add a fixture, and fix related bugs (#392).
• Fix reserved C++ words being missed during template checking (#389). Thank you @bjtrounson!
• Several Windows fixes — thank you @pepperoni505!
  • Convert backslash paths to forward slashes (#364).
  • Strip the \\?\ prefix from canonicalized paths (#367).
  • Don't prepend lib to DLLs (#365).
  • Fix xtask bootstrap so the tests run (#373).
• Have prettier only format JS and TS files (#368). Thank you @pepperoni505!
• Remove redundant files from the published package bundle (#381). Thank you @Simek!
• Commit an auto-applied change to the lockfile (#380). Thank you @AndrewFerr!
• CI: cross-compile x86_64-apple-darwin on Apple Silicon (#395) and remove the zig-based cross compile (#397).

Full Changelog: 0.31.0-2...0.31.0-3