Slice (Nexus-JS) v0.10.6

Slice (Nexus-JS) v0.10.6

Highlights

• JSON Serialization & Parsing Fast-Path (#37):
  • Added a direct Vec<u8> + ryu_js + shape property-table (Shape::with_property_keys) fast-path for JSON.stringify and a zero-copy Latin1 borrow path for JSON.parse in vendor/boa_engine/src/builtins/json/mod.rs.
  • Added sub-millisecond monotonic performance.now() (__slice_perf_now).
  • Measured speedup: JSON.stringify x 10,000 improved 12.48x (60.0 ms -> 4.81 ms), and JSON.parse(JSON.stringify(obj)) x 10,000 improved 2.92x (94.0 ms -> 32.16 ms).
• HTTP Dispatch & slice serve Fast-Path (#38):
  • Reused a persistent SliceIsolate per worker thread across TCP connections, cached the resolved entrypoint handler across requests, and added single-pass __slice_http_url(), lazy LiveReqProto getters, and LazyResProto for zero-header-allocation Response.json(data) / new Response("ok").
  • Measured speedup: Single-socket Keep-Alive throughput increased +28.6% (11,917 -> 15,329 req/s) and cold-start improved to 0.96 us min (1.05 us P50).
• Source Map & Error.stack Resolution (#33):
  • Kept the fused runtime prelude on a single line so SLICEBC\x01 pre-compiled bytecode line numbers align 1:1 with //@sm: source map markers, and extended source map resolution to cover ES6 class methods, dynamic error prefixes, and uncaught exception output.
• node:fs VFS Additions, node:readline, and Core Compatibility Shims (#28, #31):
  • Added cpSync/cp, readlinkSync/readlink, truncateSync/truncate, utimesSync/utimes, lutimesSync/lutimes, watch/watchFile/unwatchFile (and fs.promises.* equivalents) backed by the in-memory CoW VFS.
  • Added node:readline (createInterface, async iterator), node:readline/promises, and compatibility shims for node:v8, node:inspector, node:cluster, node:http2, and node:wasi.
• CAS Archive Provenance, Dependency Diagnostics & Engine Docs (#34, #35, #36):
  • Added lockfile_blake3 and resolved package.json dependency versions to CasIndexHeader and slice inspect.
  • Added a missing-node_modules diagnostic hint in the module resolver and documented boa_engine patches in vendor/boa_engine/SLICE_PATCH.md.