http.request runs the ClientRequest constructor's path and method checks
before it calls a createConnection option, takes a pooled socket or dials
a socketPath, as Node does. Before, the createConnection callback had
already run, and a socketPath server had seen a connection, when the
check threw ERR_UNESCAPED_CHARACTERS or ERR_INVALID_HTTP_TOKEN.
evolving-let-socket-optional-reads.cjs ended the server's side of the
connection as soon as it was accepted and closed the server while the
client was still ending its own side. On macOS the client could then read
ECONNRESET, under Node and the compiled program alike, and each reports the
unhandled 'error' event in its own form.
The server now ends its side once the client's end arrives, and the server
closes when the client socket has closed. The program's output is unchanged.
A closure declared before the island array binding it reads, such as
`const show = () => describe(local); const local = list();`, made the
lowering predeclare the binding's slot with its declared native array type.
The island lowering then retyped the binding checked-dynamic at its first
use, so the closure's capture and the binding disagreed (SC9001). The
predeclared slot of an island handle binding is now checked-dynamic from
the start, as the binding's own declaration lowers.
Test: 6897-node-island-declared-arrays gains arrows and a function
declaration that capture an island array declared after them.
A distributed union spread evaluates its source before the dispatch, so
the properties written before the spread run after it. When the source
may have effects (a call that changes a value an earlier property reads),
those properties must now be constants; otherwise the literal takes the
checked-dynamic merge, which keeps Node's order.
A listener registered under an unrestricted event name was not recorded
in the program's event scan. A prefixed or suffixed emit with no matching
pattern listener was then lowered to `false` without dispatching, so the
any-name listener never ran. The scan now records such registrations, and
computed-name emits dispatch whenever one exists.
The same registrations can place a listener of any signature in the
bucket of a literal event. listeners(), rawListeners() and
events.getEventListeners() of a literal event returned that bucket typed
by the event's tuple, so calling an element passed the listener arguments
of other types. These calls are now refused once the program registers a
listener under an unrestricted name, as they already are for pattern
registrations.
TypeScript 7.1's protocol 9 marks an `import source` clause with phase
bits 3, which the decoder rejected, so a 7.1 checker failed the whole
build with "TypeScript AST: `import source` is not supported".
The decoder now keeps the phase, `phaseModifier` reports it as
SOURCE_PHASE_MODIFIER, and preflight reports SC1090 at the declaration.
common-symbols.test.ts compiles every runtime source with the vendored
include paths only. scr_intl.c includes ICU's C API headers, which the
runtime pack build takes from the fetched ICU release, so on a host
without system ICU headers both of the test's compiles failed with
"'unicode/ubrk.h' file not found", and the aarch64-macos compile failed
on every host. The test now passes the same source/common and
source/i18n include paths for scr_intl.c, through icu-data.mjs's
ensureIcuSources.
assert.throws and assert.rejects with an expected object held in a
variable compare each key with the thrown error's own or inherited value,
as Node's `key in actual` check does. An error's name is on its
prototype, so { name, message, code } failed against every error.
Untyped code called a method of a compiled class instance through the
site's dispatch helper: the callback that resolves own function-valued
properties, then the helper, which normalizes the capsule, tests each
class key and unwraps the instance before calling the method.
A call of a method dispatch helper from a dynamic-tier function now
tests the receiver's capsule key against the helper's plain class
branches (a direct call of one method with the helper's arguments) and
calls that branch's method with the capsule's instance. A branch
qualifies when every subclass the normalization can rebox its key to
calls the same method, and when the callback has no branch for the key
or those subclasses, so it answers undefined for the capsule. Every
other receiver calls the callback before the arguments and then the
helper, as before. Module initializers call this way only inside loops.
An integer `+`, `-` or `*` whose operands and result are proven within
the uint32 range, and whose operand is a `>>>` result or arithmetic on
one, such as `((i + j) * (i + j + 1) >>> 1) + i + 1`, is now 32-bit
arithmetic without wrap, and its double converts from the 32 bits
(`uitofp i32`). Vectorized, that conversion takes three instructions on
x86-64 without AVX-512, where the 64-bit sum's unsigned conversion took
six. Sums of counters and literals, such as `i + 1`, keep the 64-bit
form, whose conversion LLVM folds with their uses as indexes.
An optimized program divided into partitions was simplified at O2 before
the thin link and optimized again at O2 after importing, so the work on
each partition's largest functions ran twice. The pre-link now runs the
O1 simplification, which still annotates the profile and inlines and
simplifies enough for the summaries the import decisions read; the
backend's O2 optimization is unchanged. A program optimized as one module
is unchanged.
The O1 simplification has no correlated value propagation. Without it,
SimplifyCFG folds a jammed loop's early exit and its trip-count exit into
one branch, the loop's latch no longer exits, and the backend's unroller
keeps a trip-count test in every unrolled iteration. The pre-link runs the
pass once per function after simplifying it.
A JavaScript child stream (`child.stdout`) reached through the child's
checked-dynamic box registers its listeners through the stream's own
`on`. The declarations type an unannotated 'data' listener's chunk as a
Buffer, so the listener body checked the chunk as one and threw
`TypeError: expected Uint8Array at $, got string` once `setEncoding` made
the stream pass strings, as in Node's test-child-process-default-options.
When the file calls `setEncoding` on the same access path, an inline
'data' listener registered with on, once, addListener, prependListener
or prependOnceListener now binds its unannotated chunk as a
checked-dynamic value, which holds the string or the Buffer Node passes.
Streams without a `setEncoding` call keep the Buffer-typed chunk.
Three fixes.
A function-local island handle read inside a closure, such as an island
array spread in an arrow (`() => [...local]`), resolved to the enclosing
function's binding without registering a capture, so the closure referred to
a local it does not have (SC9001). The handle is now read through
resolveLocal after its binding is retyped checked-dynamic, which captures
it like any other local.
A static island import or re-export loaded the island module in the
importer's %init prelude, after every native dependency the file imports.
A native module imported after the island package therefore evaluated
first, which reverses Node's dependency order. The load now runs in its
statement's place among the dependencies' %init calls. An island statement
the import order leaves out keeps the prelude's place.
Tests: 6897-node-island-declared-arrays gains closures that read, measure
and spread a function-local island array. node-island-import-order checks
evaluation order when an island re-export precedes a native import, and
when an island import sits between two native imports.
The SC1010 refusal of an import or re-export that resolves to type
declarations now applies only when the declaration has no runtime file
beside it (x.js for x.d.ts, x.mjs for x.d.mts, x.cjs for x.d.cts). A
relative import of `./node_modules/dependency/index.js` names a module
Node loads, and keeps its previous SC2013. The noUnusedLocals test reaches
its declaration file through a type-only re-export, since a runtime import
of a declaration-only file is now refused, as Node fails to load it.
Inside a nested function, a read of a captured handle `let` narrowed to
the handle whenever it was a member receiver. A function declared before
the first write reads the binding as `any`, so the narrowed handle reached
member reads typed `any`, and an optional read (`c?.remoteAddress`)
compiled to an unconditional SC1090 throw. js-dyn-server, whose listener
reads `server.listening` inside the callback passed to createServer, hit
the same path.
The read now narrows only when the checker types it as the handle. An
optional member read keeps the tagged value, so undefined short-circuits
and the handle arm narrows; other reads take the checked-dynamic value.
The lowerer's closureDynLets collection is a checked journal table.
Corpus evolving-let-socket-optional-reads.cjs reads and calls members
through `?.` on a captured socket before and after its first write.
Reflect.has over a target held as any, unknown or a union answered a
presence result for a primitive. It now checks the target at run time
after both arguments are evaluated and throws Node's TypeError
("Reflect.has called on non-object"). The stdlib-fence snapshot no
longer lists Reflect.has, which lowers.
process.stdin.isRaw read a flag that only the dynamic setRawMode path
set, so a direct process.stdin.setRawMode(true) on a TTY left it false.
The flag now lives with scr_process_stdin_set_raw_mode, which every
path calls, readline's raw mode included.
StringDecoder.end(chunk) with a dynamic chunk that is undefined threw
ERR_INVALID_ARG_TYPE. It now only flushes, as Node's end skips the
write for undefined. A dynamic ArrayBuffer or SharedArrayBuffer chunk
decoded its contents; write and end now throw Node's
ERR_INVALID_ARG_TYPE for it, as it is not an ArrayBufferView.
After socket.setEncoding(enc), socket.pipe(destination) wrote the raw
bytes it read to the destination. It now writes the decoded strings, as
Node's pipe writes each string chunk: the destination receives their
UTF-8 bytes, and a partial character the decoder holds at EOF is written
before the destination ends.
tests/node-parallel/run.mjs runs each job's files with its own
TEST_THREAD_ID, as Node's test runner does, so test/common/tmpdir gives
concurrent files different directories instead of one shared .tmp.0.
- listeners() and rawListeners() in TypeScript of an event that no literal
emit or listener gives a tuple (one registered only under computed names)
read the untyped array, so each returned listener takes every argument a
call passes. The array was checked into zero-argument functions, which
called the listener without its arguments.
- A typed 'newListener' or 'removeListener' listener in a program with a
checked-dynamic listener of the other meta event registers through the
adapter. The meta lowering's check looked only at the listener's own
event and refused it with SC2020.
The --layouts wrapper always forwarded to clang. A musl target links with
`zig cc`, and SCRIPTC_LINKER replaces the driver together with its `cc`
argument, so every layout build failed. The wrapper now forwards to
`zig cc` when SCRIPTC_TARGET names a musl triple.
Chris Tate