vercel-labs/scriptc v0.3.6

on GitHub

0.3.6

Features

• node:readline adds terminal mode, cursor helpers and emitKeypressEvents, along with the history and completer options and the history members.
• node:http supports request signals, destroy(err), servername, Expect events and maxHeaderSize.
• createHash and createHmac values work as streams.
• node:test adds the concurrency, plan and timeout options.
• fs.cpSync, fs.cp and fs/promises cp are supported.
• util.promisify works over setTimeout, setImmediate, stream.finished, stream.pipeline and the zlib callback one-shots.
• Array.fromAsync works over arrays, Readable.from accepts Sets, iterators and class iterables, and the Set composition methods accept Map arguments.
• using disposes Disposable-typed values, and SuppressedError exposes error and suppressed.

Performance

• Int32 class fields stay int32 next to arithmetic on dynamic operands and in programs that register process event listeners. A large TypeScript type-checker workload runs about 12% faster with about 5% less memory.
• while loops bounded by a string's length keep int32 counters.
• Worker threads reserve heap growth up front once they allocate many large blocks, and share one prefault budget.
• Small runtime functions are inlined into release executables.
• Integers are speculated only where the static range proof gives up.
• Constant-key dynamic reads are cached per site, and JSON.parse follows repeated key sequences.
• The zlib one-shot forms run on the stream engine, and statSync's throwIfNoEntry option no longer builds the error it discards.

Fixes

• Class instances keep their identity through structural record views, including in switch statements and assertions.
• Node 24 builtin forms that ran with wrong output now match Node or are refused, and Object.groupBy results have a null prototype.
• IPv4 hosts in special-scheme URLs parse like WHATWG URL.
• fs paths with a null byte are refused as Node does.
• Object.setPrototypeOf returns primitive receivers, and createHmac without a key throws Node's error.
• Boxed records that hold an async function link the dynamic promise unit.