- Batch checker type work for reached call/receiver paths and eager npm-static implicit instances.
- Memoize immutable type constituents and skip array checks for visibly non-object types.
* Prefetch checker work by lowering phase
- Batch program structure and reachable body waves without querying dead bodies.
- Preserve memoization and panic fencing with focused checker coverage.
* Batch checker queries in coverage remainder
* Batch JavaScript class collection queries
* Batch managed checker analysis gaps
* Batch types for previously prefetched symbols
* Reuse reachability lowering output
- Retain reachable IR and assemble the emitted module without lowering bodies a second time
- Preserve reached-only artifact filtering, coverage remainder behavior, and add lowering phase timing
* Preserve record order in retained lowering
* Preserve record order in retained helpers
* Preserve generic lowering record order
* Recheck retained generic rest order
* Record retained lowering parity fixtures
* Preserve retained lowering failure parity
* Cache emitted library translation units
- Restore cached C and LLVM translation units on semantic library cache hits while refreshing volatile build identity
- Rebase public C source annotations and strip them from stable native-cache inputs
* Fix cached library source annotations
* Fix cached C source annotations
* Fix cached C newline annotations
* Split volatile library identity code
- Emit build identity getters from a tiny standalone C translation unit
- Cache generated library program objects independently of volatile identity and archives
- Preserve toolchain, runtime, and translation-unit dependency invalidation coverage
* Preserve library identity during localization
* Keep library identity sources private
* Preserve library identity in public emission
* Preserve identity in kept library units
* Optimize same-shape record spreads
- Lower TypeScript record updates through reusable clone helpers
- Outline large record clones in C and LLVM to reduce generated code
- Add ownership, IR, integer-proof, and differential coverage
* Fix cast record spread clone fallback
* fix(runtime): trust Windows root certificates
- Load default TLS roots from the Windows ROOT store.
- Link crypt32 for Windows TLS builds.
- Cover the certificate-store import in cross-build tests.
Co-authored-by: Kayakyx <Kayakyx@users.noreply.github.com>
* fix Windows CA store policy handling
* fix(runtime): cover Windows policy root stores
* fix(runtime): dedupe Windows root stores
* fix(tls): match Windows system CA stores
---------
Co-authored-by: Kayakyx <Kayakyx@users.noreply.github.com>
- Implement the Zig 0.16.0 AArch64 musl runtime and preserve compiler failure diagnostics.
- Promote the target through executable, library, localization, and documentation matrices.
- Verify both backends and the complete arm64 Alpine differential contract.
Co-authored-by: Arth Tyagi <41021374+arthtyagi@users.noreply.github.com>
`.filter(fn)` required the callback to return exactly bool. JS applies
ToBoolean to whatever the predicate answers, so `xs.filter((s) => s)` — the
idiomatic drop-the-falsy — was refused for no semantic reason.
The filter loop now wraps the call in the same toBool an `if` statement would
apply. A bool answer is unchanged and emits identical IR. A union answer
routes through its interned per-arm truthy helper, requested at the call site
where a real node exists for the diagnostic. A unit-only answer is constantly
falsy, and the call still runs for its effects.
The kinds with no native ToBoolean keep the fence: void has no value at all,
and dyn/jsval/caught truthiness needs the embedded engine.
Verified against Node: filtering strings, numbers, and a
`(string | undefined)[]` all print identically in both.
Diagnostics 100, filter corpus 9 across both
backends.
* feat: add mobile library targets for iOS and Android
- three library-mode-only triples join SCRIPTC_TARGET:
aarch64-apple-ios, aarch64-apple-ios-simulator (darwin hosts with
Xcode's iPhoneOS/iPhoneSimulator SDKs), and aarch64-linux-android
(any host with an NDK). The consuming pattern is an embedding app
linking profile-configured static archives — Xcode on the Apple side,
Gradle/NDK on the Android side — so the executable lane refuses the
triples with SC3002 and the pointer to --lib
- zig bundles no Apple or bionic libc: resolveCc discovers the sysroot
(xcrun for the selected Apple SDK; ANDROID_NDK_ROOT or the newest
ndk/<version> under the SDK root) and spells it into targetArgs,
where every cache tier already keys it. The canonical LLVM spellings
map to zig's own with the minimum-version floors pinned:
aarch64-ios.15.0[-simulator] stamps LC_BUILD_VERSION minos 15.0 into
every object, aarch64-linux-android.26 pins the bionic stub level an
embedder's minSdkVersion must meet. API 26 bionic carries everything
the library-lane units call (arc4random_buf included), so no shim TU
joins the archive
- localization follows the existing object-format rule: both iOS
platforms ride the Mach-O host-ld64 arm (ld64 reads iOS objects and
preserves platform/minos through the -r merge), Android rides the
cross-ELF arm (zig relocatable merge + in-process demotion) via the
driver's zig spelling. abi.instance_per_thread needed no per-target
work — thread-local statics compile identically on all three
- admission is a pure env/host check ahead of toolchain discovery: an
iOS triple off a darwin host and near-miss mobile spellings refuse
SC3002 with the pairing or the supported set named, in compile() and
compileLibrary() both, decorated by the profile teaching machinery
- library-multi grows the mobile lanes: M12 admission shape always
runs; SCRIPTC_IOS=1 builds localized a/b archives per target and
emission (M1 symbol exactness, ambient audit, version floor), links
probes with the Xcode clang, and EXECUTES the two-instance and
four-thread probes on a booted simulator byte-for-byte against the
desktop expectations (device-arch archives are build+link verified);
SCRIPTC_ANDROID=1 does the same through the NDK clang and an
emulator, reusing a running device or writing and booting a headless
arm64 AVD directly
- the surface manifest's coverage notes record the mobile posture (the
library-admissible surface only; no mobile claim outside it), the
profile spec and the platforms page carry the mobile matrix with the
version floors, and non-mobile builds are unchanged byte-for-byte
* fix: harden mobile target tooling
* Harden mobile target test isolation
* feat: support wasm32-wasi as a production target
- Add production LLVM WASI codegen with a 32-bit ABI, coroutines, and dynamic modules
- Integrate WASI builds and execution into the CLI with capability diagnostics
- Add differential coverage and document the fourth production target
Co-authored-by: Albert <57402359+bulatovv@users.noreply.github.com>
* fix: address wasm target review findings
* fix WASI guest paths and fetch alias detection
* fix WASI async bridge and fetch detection
---------
Co-authored-by: Albert <57402359+bulatovv@users.noreply.github.com>
- Recognize canonical typed-array loops with semantics-safe fallbacks.
- Emit integer induction and direct integer byte indices in C and LLVM.
- Add backend and differential regression coverage.
Co-authored-by: morler <478444+morler@users.noreply.github.com>
* feat(fs): support static rename APIs
- Lower fs.rename, fs.renameSync, and fs/promises.rename through the C and LLVM backends.
- Add runtime callback, error, and promise handling for rename operations.
- Cover typed and check-JS usage with differential corpus tests.
Co-authored-by: ryoppippi <1560508+ryoppippi@users.noreply.github.com>
* fix Windows rename semantics
* fix: move callback rename work off main thread
* fix(runtime): preserve rename callback checkpoints
---------
Co-authored-by: ryoppippi <1560508+ryoppippi@users.noreply.github.com>
* Support static util.parseArgs
- Lower typed util.parseArgs calls through the C and LLVM backends.
- Add a link-gated native parser with Node-compatible options, tokens, defaults, and errors.
- Cover ESM, CommonJS, default argv, sanitizer, and TS7 behavior.
* fix(runtime): align parseArgs behavior with Node
* fix(runtime): close parseArgs parity gaps
* fix(runtime): match parseArgs edge cases
* fix(runtime): preserve parseArgs short and default semantics
* Support Date instance lowering
- Lower read-only Date values and constructors through the C and LLVM backends.
- Add portable calendar helpers, differential coverage, and documented surface contracts.
- Fence unsupported mutation, identity, locale, and component-constructor forms.
Co-authored-by: sensei-woo <sensei-woo@users.noreply.github.com>
* Fix Date exception and timezone semantics
* fix: harden Date lowering edge cases
* fix Date lowering edge cases
* Fix Date union fences and offset clipping
---------
Co-authored-by: sensei-woo <sensei-woo@users.noreply.github.com>
* perf(compiler): specialize typed-array element access
- Lower typed-array reads, writes, and lengths directly by IR element kind.
- Preserve coercion, bounds, and receiver lifetime semantics across C and LLVM.
- Cover emission, ABI layout, and Node-differential behavior.
Co-authored-by: morler <478444+morler@users.noreply.github.com>
* fix: retain typed-array receiver across nested assignments
---------
Co-authored-by: morler <478444+morler@users.noreply.github.com>
* fix(compiler): support implicit top-level await modules
- Match Node 24 syntax detection by treating top-level await as an ES module marker.
- Add differential corpus coverage for TypeScript files without explicit imports or exports.
* fix Node ESM classification for top-level await
* fix ESM require diagnostics and classification caching
* fix require binding and package type precedence
* fix: align top-level await module detection with Node
- Add native RequestInit, AbortSignal, and streaming request and response body support.
- Lower the static fetch surface through both C and LLVM without the embedded engine.
- Add differential, Node-typing, sanitizer, and regression coverage.
- Lower number-array and typed-array value iterators statically.
- Preserve stored iterator cursor and exhaustion state across loops.
- Add Node differential coverage for arrays and Uint8Array.
- Lower asynchronous ESM initialization with Node-compatible dependency ordering and caching.
- Finish top-level promises consistently across the C and LLVM runtimes.
- Add differential coverage for imports, rejection, and unsettled evaluation.
- Normalize Windows paths passed through the TS7 virtual filesystem.
- Emit and launch .exe outputs by default on Windows.
- Add targeted regressions and a Windows GitHub Actions smoke test.
Co-authored-by: Khaled Ghallab <171967089+Khaled-Ghallab@users.noreply.github.com>
- Add a strict versioned manifest and direct C ABI lowering for both backends.
- Link declared native inputs through the CLI and compiler APIs with precise diagnostics.
- Cover the ABI under plain and sanitized integration tests and document its contracts.
- The CA-store surfaces (tlsca.get/root/set) demote the determinism attestation but no fence could deny them: three AMBIENT_SURFACE_FNS rows, one per Node spelling. Split rather than folded into a single "CA store" surface — an author who denies REPLACING the trust anchors is making a different decision from one who denies reading them, and rootCertificates is a value read with no call form to hang a table row on.
- The parity test's full-fence declaration set names the new node-builtin.tls. family; surface-manifest.json regenerated.
- Order-parity baselines for the seven fixtures the two lanes added (2556-2558, 2582-2585). Pure insertions: no recorded baseline moved.
- The written-binding decline yields when the declared type has no mapping or the write's RHS roots at an ambient-undefined name
- A class extending a collection-poisoned base flushes the base's diagnostics eagerly: the heritage evaluates at module init, so deferring the compiler's own fence manufactured a silent wrong output
- trapDeclRootOf's written-binding decline now requires a mappable declared type: ordinary storage only buys anything when it compiles — an unmappable recursive call shape traded the compiling no-storage trap for a guaranteed SC2009 on a value that never exists
- bindingEverWritten skips statement-position writes whose RHS chain roots at an ambient-undefined name: that statement IS the RHS root's throw (lowerExprStatement's first claim) and never touches the target's storage, so it cannot justify the decline
- A poisoned base a top-level class extends flushes its deferred diagnostics eagerly (collectClassShape): the heritage evaluates at module init and the base's fence is the compiler's own — Node defines the base fine — so the deferred trap compiled a binary that refused at startup where Node runs; leaf and derived-only poisoned classes keep the JS deferral
- Fixtures: corpus 2632 (unmappable written trap binding) and 2633 (ambient-rooted rewrite), diagnostics js-extends-poisoned-base (the eager report names the base's real blocker), errors.test pins for both deferral edges that must NOT report eagerly; order-parity baselines recorded for the new entries
Chris Tate