vercel-labs/scriptc v0.3.5 on GitHub

0.3.5

node:fs adds read and write streams, including fs.createReadStream and fs.createWriteStream.
util.promisify works over child_process.exec and the fs callback functions that have an fs/promises counterpart.
node:net adds socket.address(), socket.resetAndDestroy() and server.dropMaxConnection, and node:dgram supports the socket options and disconnect().
node:tls adds getProtocol, getCipher, alpnProtocol and tls.DEFAULT_MIN_VERSION/DEFAULT_MAX_VERSION.
events.once works on EventEmitter instances.
Checked JSON records keep keys they do not declare, and compound assignment with untyped operands compiles.

Map and Set headers and small entry arrays are smaller: an empty map takes 100 bytes instead of 188.
Released lifetime regions are freed without a pass over the whole heap.
The cycle collector frees its large work vectors after a pass, and intact parsed JSON documents skip cycle collection.
Classes keep a property bag only when something stores into it, and class and record views without dynamic stores emit no commit adapters.
Integer arithmetic is proven through calls and module-level code, pure number recursion runs on integer clones, and array lengths load with the range of a JS array length.
Closed virtual calls are dispatched directly, read-modify-write operations reuse their Map lookup, and never-reassigned bindings are read as values.
Generators, user iterators and awaits cost less per value, and promises use a smaller block allocated inline.
SHA-1 and SHA-256 use the SHA extensions on x86-64, about 4 to 5 times faster than before.
Regex exec results, parseInt of captures, UTF-8 file reads, string-and-number concatenation and small Buffer allocation are cheaper, and JSON.parse storage fits its length.
The main thread leaves its heap to the operating system at exit.

Sockets read ahead without a consumer, so a peer's close reaches them.
Publication walkers with more than ten pushes keep distinct value names, and int32 field storage survives reflection reads through unknown.
Native program objects use runtime ABI v22. External object consumers must link the matching v0.3.5 runtime pack; the versioned marker rejects incompatible runtime objects at link time.