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v0.0.8

MagicalTux released this 27 Jul 20:11

· 199 commits to master since this release

aa43cb7

Added

(temporal) astronomical Chinese/Dangi calendars (+5, unbounds the range)
(intl) CLDR alias tables for BCP-47 extension subtags (+3)
(regex) Unicode 17 property tables, emoji string properties, spec \s (+~45)
(engine) per-iteration let, switch TDZ, for-of arguments, tagged-template, optional-chaining, #x in (+17)
(engine) yield/await in computed property keys (object literals + class members) (+8)
(engine) class super()/this-binding cell + Function/GeneratorFunction subclassing (+17)
(engine) Temporal DST duration rounding + IANA links, Array live flatten/map/filter observable order (+21)
(regex) reverse-lookbehind captures, lossless surrogate ToString, AnnexB legacy parse (+20)
(intl) wire intl-0.5.1 dangi/umalqura calendars + DateTimeFormat interval & non-Gregorian formatting + getCanonicalLocales aliases (+97)
(intl) BigInt-exact NumberFormat via puremp::Decimal significant-digits (+4)
(engine) String-exotic [[DefineOwnProperty]] + curated fixture corrections (+1)
(engine) lexical-env separation for eval/global declaration-instantiation (+17)
(engine) Array.fromAsync iterator-driven, RegExp cross-realm brand, ArrayIterator/Proxy-set, destructuring/for-in order (+42)
(engine) Temporal lunisolar arithmetic, Array sparse mutators, NumberFormat compact, class extends-null/heritage-TDZ (+70)
(engine) formatRange field-level parts, Date.UTC fp, RegExp lastIndex physical (+12)
(intl) DateTimeFormat IANA timezone support via the Temporal tz data (+14)
(realm,module) Gen/AsyncGen proto-from-ctor-realm-prototype + ShadowRealm importValue (+3)
(module) single-module top-level-await via suspendable coroutine (+3)
(shadowrealm) genuine realm isolation on the realm-global-swap foundation (+8)
(realm) swap global_this/global_scope at realm boundaries (+7)
(realm) cross-realm proto-from-ctor for dynamic Function (+1)
(module) %AbstractModuleSource% intrinsic (+8)
(engine) URI encode/decode, matchAll iterator, class constructor order (+31)
(tdz) for-of/for-in head lexical TDZ (+12)
(temporal) Duration relativeTo rounding — built-ins/Temporal now 0 fails (+10)
(engine) Proxy Set/Get receiver preservation + AsyncFunction tag + Object (+25)
(temporal) DST cross-midnight, IANA canon, NudgeToCalendarUnit, hang fix (+40)
(temporal) DST/timezone arithmetic — disambiguation, transitions, DST-aware diff (+26)
(intl) DTF hourCycle/ZDT-toLocaleString + NF exact-decimal + RTF numbering (+39)
(intl) Islamic/Persian dateStyle for Temporal toLocaleString (+3)
(language) 3rd contained grind — assignment order, for-of protocol, using decls (+18)
(array) precise [[Get]]/[[Set]]/[[Delete]] for hole+accessor mutators (+16)
(array) species-create through Proxy, prototype.length, weak-collection tag (+12)
(realm) proto-from-ctor-realm — per-realm Intl protos + GetPrototypeFromConstructor (+15)
(regex) v-flag property-of-strings (Emoji_Keycap_Sequence) + astral group names (+26)
(intl) smaller-services algorithmic — ListFormat, Collator, localeCompare, numbering (+36)
(intl) Temporal→DateTimeFormat protocol + toLocaleString + DTF algorithmic (+93)
(intl) NumberFormat algorithmic — decimal rounding, BigInt/coercion, accounting (+52)
(intl) re-wire Locale/Intl to intl-0.5 CLDR data + bounded aliases (+22)
(engine) Promise finally/species, static-block scope, WTF-8 surrogates (+18)
(engine) scattered code-tail — class extends, live collections, private-on-proxy (+25)
(realm) cross-realm error identity + ArraySpeciesCreate lookup (+19)
(atomics) virtual-clock cooperative scheduling for wait/waitAsync (+39)
(function) source-text .toString() for classes + computed methods (+7)
(typedarray) resizable-buffer OOB + length-tracking view completion (+31)
(async-gen) lazy yield* delegation + for-await over sync iterators (+31)
(language) diffuse tail — regex-literal LT, strict/global bindings, directives (+30)
(class) diffuse grind — direct-eval private names, private-elem invariants (+42)
(language) 2nd diffuse grind — lazy IteratorClose destructuring +47 (+48)
(builtins) diffuse tail — JSON parse-with-source +9, Set +4, unary-wrapper +2 (+18)
(typedarray,temporal) diffuse grind — TypedArray +19, Temporal ISO +27 (+48)
(object) diffuse conformance grind — built-ins/Object 67→15 (+52)
(language) diffuse conformance grind — statements/expressions (+34, 46 fixed)
(temporal,array) diffuse conformance grind — Temporal ISO +92, Array +53 (+142)
(temporal) widen Duration to i128 + correctly-rounded total/BigInt→Number (+14)
(temporal) per-calendar edge fixes — BC round-trip, era validation, month-until overshoot (+181)
(temporal) harden lunisolar leap-month semantics in the calendar layer (+67)
(temporal) calendar-aware arithmetic for PlainDateTime/ZonedDateTime/YearMonth (+286)
(temporal) calendar-aware arithmetic + PlainMonthDay wiring (+152)
(temporal) non-ISO calendar wiring for ZonedDateTime + PlainYearMonth (+410)
(temporal) non-ISO calendar wiring for PlainDateTime (+230)
(temporal) non-ISO calendar layer + PlainDate wiring (+238)
(async-gen) reify method-call arguments in the step machine (+3)
(async-gen) spec-shaped request queue + per-await microtask suspension (+7)
(conformance) implement Iterator.zip / Iterator.zipKeyed proposal (+33)
(conformance) resizable/growable ArrayBuffer + length-tracking views (§3.8)
(conformance) GetPrototypeFromConstructor uses newTarget's realm (proto-from-ctor-realm, +45)
(conformance) implement mapped arguments object ([[ParameterMap]]) (26 → 2, +24)
(jit) direct generic→generic calls + inline ArrayLen; retire JIT_DESIGN.md
(jit) direct generic JIT→JIT calls + inline ArrayLen (§2.1 / Pass 6)
(jit) inline property-SET + array-element GET/SET fast paths (§2.1 Pass 6)
(jit) inline monomorphic property-GET fast path (§2.1 Pass 6)
(jit) generic-tier array element access + .length — Pass 5
(jit) generic-tier function calls (Op::Call / Op::CallNative) — Pass 4
(jit) generic-tier control flow + comparisons + value arithmetic — Pass 3
(jit) generic-tier property access (GetProp/SetProp) — Pass 2
(jit) generic (NanBox) tier substrate — Pass 1, end-to-end generic Add
(host) §4.3 web platform globals + fix no_std build (FloatExt) (+59 tests)
(host) §4.5 node-compat builtins — Buffer, path, os, util, querystring, process (+23 tests)
(wasm) §2.2 reference types + bulk-table + JS-boundary tables (+9 tests)
(host) §4.1 event loop + timers (setTimeout/Interval/Immediate, nextTick, AbortController)
(conformance) implement proper tail calls (PTC) on both tiers — un-skip +34
(test262) $262.agent cooperative scheduler + Atomics.waitAsync
(conformance) implement $262.createRealm (cross-realm) — un-skip +77
(conformance) import attributes + assertions + JSON/text modules — un-skip +94
(conformance) implement class decorators + accessor auto-accessors — un-skip +24
(conformance) implement IsHTMLDDA (document.all) exotic — un-skip +34
(temporal) implement Duration relativeTo calendar arithmetic (+124)
(temporal) Temporal instances are ordinary extensible objects (+31)
(temporal) PlainDate.toPlainDateTime accepts a time-like (ToTemporalTime)
(temporal) implement toZonedDateTime on PlainDate + PlainDateTime (+26)
(temporal) implement Temporal.Now — Temporal fully un-skipped, 3920 pass
(temporal) implement Temporal.ZonedDateTime — 844/901, corpus 3003→3875 pass
(temporal) Date.prototype.toTemporalInstant → Temporal.Instant (+8)
(temporal) subclassing, subclass statics, and valueOf via ToPrimitive (+19)
(temporal) implement 7 Temporal types — 2984 test262 tests now pass (was 0)
(temporal) scaffold Temporal (ROADMAP §4) — ISO core + brand + registration + dispatch
(sab) make SharedArrayBuffer subclassable (class extends SharedArrayBuffer)
(sab) brand-check SharedArrayBuffer.prototype.slice/grow receiver
(sab) brand-check SharedArrayBuffer prototype getters + grow receiver
(sab) validate SharedArrayBuffer length + maxByteLength via ToIndex; un-skip
(atomics) wait requires a shared buffer — TypeError before arg coercion
(atomics) BigInt64Array/BigUint64Array read-modify-write
(atomics) throw TypeError for writing ops on an immutable ArrayBuffer
(atomics) implement single-agent notify/wait + fix arity/proto; un-skip Atomics
(tdz) hoist block/script/function let/const/class to TDZ at scope entry
async-generator yield Awaits its operand (AsyncGeneratorYield) (§async-generators)
@@asyncDispose then-chains PromiseResolve(return()) → undefined (§async-generators)
%AsyncIteratorPrototype%[Symbol.asyncDispose] (§async-generators)
generator instance prototype chain (g.prototype inherits %GeneratorPrototype%) (§generators)
%GeneratorFunction% / %AsyncGeneratorFunction% constructor objects (§generators)
distinct %AsyncGeneratorFunction.prototype% / %AsyncGeneratorPrototype% / %AsyncIteratorPrototype% (§async-generators)
distinct %GeneratorFunction.prototype% / %GeneratorPrototype% for sync generators (§generators)
Intl.Locale Info API — getCalendars/getCollations/getHourCycles/getNumberingSystems/getTimeZones/getTextInfo/getWeekInfo (§intl402)
Atomics.pause([N]) — spin-loop hint (§built-ins)
%IteratorPrototype%[Symbol.toStringTag] get/set accessor (§built-ins)
(intl) Intl.Locale can be subclassed (§3.9)
(intl) subclassing for ListFormat/RelativeTimeFormat/Segmenter + fix instance proto (§3.9)
(intl) Intl.PluralRules can be subclassed (§3.9)
(intl) Intl.Locale firstDayOfWeek option + accessor (ES2024, §3.9)
(intl) validate Intl.Locale language/script/region option shapes (§3.9)
(intl) validate Intl.Locale calendar/collation/numberingSystem options (§3.9)
(intl) Intl.Locale variants option (§3.9)
(intl) DateTimeFormat defaults to a numeric date when no options given (§3.9)
(intl) Collator ignorePunctuation locale default (Thai → true) (§3.9)
(intl) DateTimeFormat resolvedOptions reports default hourCycle/hour12 (§3.9)
(intl) complete supportedValuesOf('numberingSystem') list (78 systems) (§3.9)
(intl) complete the numbering-system digit table (77 systems + hanidec) (§3.9)
(intl) numbering system in DateTimeFormat (digits + locale default) (§3.9)
(intl) resolve locale's CLDR default numbering system in NumberFormat (§3.9)
(intl) apply numbering-system digits to NumberFormat.formatToParts too (§3.9)
(intl) numbering-system digit substitution in NumberFormat (§3.9 CLDR)
(sab) SharedArrayBuffer grow() + slice() — deterministic core complete (§3.9)
(sab) SharedArrayBuffer core — construct + accessors + typed-array/Atomics backing (§3.9)
(atomics) single-agent Atomics over integer typed arrays (§3.9)
(ffi) C ABI value layer — KtValue + pure constructors/inspectors (§4.0)
(embed) Ctx::array_set completes the host array API (§4.0)
(intl) Intl.Segmenter segments.containing(index) (§3.9)
(embed) host-backed native state + Drop finalizers (§4.0)
(embed) deferred promises — async host continuation (§4.0)
(embed) persistent handles (§4.0 handle scope)
(typedarray) implement Float16Array (ES2025) (§3.6)
(embed) trap host-function panics at the boundary as a JS Error (§4.0)
(embed) host constructors — register_constructor + new HostCtor() (§4.0 M4)
(embed) Ctx set_property — full [[Set]] for host functions (§4.0)
(embed) Ctx construct + is_constructor for host functions (§4.0)
(embed) Ctx promise creation for async host functions (§4.0)
(embed) Ctx property API — has / has_own / delete / own_keys (§4.0)
(embed) Ctx value-inspection + array access for host functions (§4.0)
(intl) NumberFormat/DateTimeFormat formatRange + formatRangeToParts (§3.9)
(regex) Annex B legacy octal escapes (§3.9 web-compat)
(lexer) Annex B B.1.2 legacy octal string escapes (§3.9 web-compat)
(lexer) Annex B B.1.3 HTML-like comments (§3.9 web-compat)
(typedarray) live iteration observes resize / element writes (§3.6)
(collections) live Set/Map iteration (mutation mid-iteration observed) (§3.6)

Fixed

(intl) canonicalize a -t- extension's tlang through the CLDR aliases
(regexp) escape lone surrogates in RegExp.escape
(temporal) PlainMonthDay year-range check and month-without-monthCode TypeError
(temporal) floor the Islamic leap-day term for pre-epoch years (+6)
(temporal) propagate the calendar through PlainDate's toPlain* conversions
(temporal) constrain any Chinese/Dangi leap month code onto its base month
(temporal) use the 33-year arithmetic rule for the Persian calendar (+17)
(intl) gate the CLDR alias corpus behind the intl feature
(array) bound ArraySetLength's non-configurable scan by real indices (+1)
(module) dynamic import() in strict/module tail position (+2)
(intl) signDisplay/-0/NaN sign logic + accounting -0 + unicode-ext yes→true (+12)
(conformance) instance_proto throwing-getter propagation + aux symbol enumeration (+10)
(conformance) preserve key insertion position on data->accessor redefine
(conformance) Intl structural pass — option/descriptor/validation (+63)
(conformance) second Temporal tractable pass (328 -> 154, +139, ~93%->96.7%)
(conformance) super(...args) into a native constructor no longer drops the args
(conformance) drive down tractable Temporal failures (453 → 328, +125, ~90%→93%)
(conformance) Object.values/entries skip array holes on the nbexec tier
(conformance) mop up small builtin clusters (+23)
(conformance) mop up language statements/expressions tail (+61)
(conformance) drive down built-ins/Promise cluster (16 → 5 fail, +11)
(conformance) drive down super cluster (18 → 1 fail, +17, +2 class)
(conformance) drive down generators cluster (56 → 24 fail, +32)
(conformance) drive down language/eval-code cluster (26 → 1 fail, +25)
(conformance) drive down class cluster (statements 105→85, expressions 49→31, +38)
(conformance) drive down language/module-code cluster (31 → 13 fail, +18, +2 dynamic-import)
(conformance) drive down built-ins/Iterator cluster (49 → 36 fail, +13)
(conformance) drive down assignment cluster (33 → 22 fail, +11, +2 Object, +7 targettype)
(conformance) drive down language/statements/for-of cluster (37 → 27 fail, +10)
(conformance) materialize function/class prototype own property (+~35)
(conformance) drive down built-ins/String cluster (37 → 10 fail, +27)
(conformance) drive down built-ins/Function cluster (44 → 25 fail, +19)
(conformance) drive down built-ins/Proxy cluster (51 → 18 fail, +33)
(conformance) drive down TypedArray (+52) and RegExp (+26) clusters
(conformance) drive down built-ins/Array cluster (220 → 170 fail, +50)
(conformance) drive down built-ins/Object cluster (84 → 47 fail, +37)
(temporal) ISO parser tail — >9-digit RangeError, offset ranges, date-sep consistency (+14)
(temporal) reject U+2212 minus sign in ISO strings (+12)
(temporal) toPlainDateTime rejects non-string primitives with TypeError
(temporal) bind statics to their type (from/compare ignore this) (+11)
(proxy) pass real Symbol keys to traps, not the internal sentinel string
(super) super.x = v routes through the strict-aware member assignment
(super) resolve super.prop/super.method() over the real prototype chain
(iterator) Iterator.zip/zipKeyed close still-open iterators in reverse order
(array) Array.from iterable path iterates lazily and IteratorCloses on mapFn throw
(promise) all/allSettled/race/any iterate lazily and IteratorClose on abrupt
(error) Error/NativeError/AggregateError coerce message via ToString; AggregateError IterableToList propagates
(collections) Map/Set/WeakMap/WeakSet constructor uses spec AddEntriesFromIterable
(arraybuffer) new ArrayBuffer(length) does ToIndex (runs valueOf, propagates)
(symbol) Symbol(description) does ToString (runs user toString, propagates)
(json) JSON.parse(text) does ToString first (runs user toString, propagates)
(symbol) Symbol.for(key) does ToString (runs user toString, propagates)
(typedarray) from/of coerce each element via ToNumber/ToBigInt
(global) parseInt/parseFloat/URI functions coerce args via ToString/ToNumber
(global) isNaN/isFinite coerce via ToNumber (runs valueOf, propagates)
(update) member key ToPropertyKey deferred past the null-base check
(update) with-binding update op resolves the reference once (self-mutating getter)
(assign) read_target on an unresolvable identifier throws ReferenceError
(logical-assign) computed-member target evaluates base+key once (lhs-before-rhs)
(logical-assign) NamedEvaluation for x &&= / ||= / ??= anonymous RHS
(string) replaceAll/matchAll use spec IsRegExp ([[Get]] @@match, propagates)
(json) stringify replacer PropertyList built via [[Get]] (proxy-aware, propagates)
(json) reviver object walk is proxy-aware ([[Delete]]/CreateDataProperty + target keys)
(json) reviver IsArray unwraps proxies + ToLength coercion propagates
(json) reviver array walk uses proxy-aware [[Delete]] / CreateDataProperty
(regex) unicode-mode restricted identity/control escapes in classes + unterminated backslash-u-brace
(arraybuffer) resize() ToIndex's newLength (negative → RangeError, not clamp)
(arraybuffer) ToIndex + allocation-cap validation for maxByteLength option
(typedarray) length-tracking view over a resizable buffer floors, not throws
(generators) cache yield* [[NextMethod]] once instead of re-reading each step
(atomics) store return value + shell-host wait model — Atomics non-agent 100%
(sab) split length ToIndex from allocation limit — SAB single-agent 100%
(fn+sab) honor non-object fn.prototype assignment; SAB newTarget proto via [[Get]]
(sab) SharedArrayBuffer maxByteLength option runs its getter (poisoned propagates)
(sab) non-object newTarget.prototype falls back to %SharedArrayBuffer.prototype%
(arraybuffer) slice SpeciesConstructor rejects a non-object constructor
(sab) SharedArrayBuffer.prototype.grow ToIndex's its newLength arg
(atomics) isLockFree coerces its arg via ToIntegerOrInfinity
(nbvm) mirror array non-writable-length mutator throw in the bytecode tier
(delete) throw TypeError on delete of a nullish plain-member base
(array) throw TypeError from push/pop/shift/unshift on non-writable length
%TypedArray%.prototype.toLocaleString invokes each element's own toLocaleString (§built-ins)
isSealed/isFrozen (and seal/freeze) work on aux-backed cells (functions, Dates) (§built-ins)
Object.preventExtensions works on aux-backed cells (functions, Dates, …) (§built-ins)
++/-- on a member evaluates the reference (base + computed key) exactly once (§expressions)
Object.freeze on an array freezes its named props + reports elements non-writable (§built-ins)
NBVM regex .groups is null-proto + duplicate-name participating-capture-wins (§regexp)
duplicate named groups — a participating capture wins in .groups/.indices.groups (§regexp)
Iterator.zipKeyed longest-mode padding is read per key, not iterated (§iterator-helpers)
iterator helpers throw TypeError on reentrant next() (GeneratorValidate) (§iterator-helpers)
yield* over an iterator with a non-callable next throws a TypeError (§generators)
named function expression name is a soft immutable binding (§functions)
Object.seal/freeze work on aux-backed cells (functions, Dates) (§built-ins)
constructor .prototype is non-writable and non-configurable (§built-ins)
Set/Map.prototype.forEach iterates live (observes mid-callback mutation) (§built-ins)
Intl.Locale getWeekInfo — {firstDay,weekend} only, firstDay from firstDayOfWeek (§intl402)
AggregateError constructor has length 2 (§built-ins)
String.prototype.padStart/padEnd have length 1, not 2 (§built-ins)
correct length for collection constructors + several methods (§built-ins)
correct length for Map/WeakMap.set (2), Map.groupBy/Object.groupBy (2) (§built-ins)
anonymous functions materialize name "" as an own property (§language)
well-known symbols are own data properties of %Symbol% (§built-ins)
JSON.stringify.length is 3, JSON.parse.length is 2 (§built-ins)
ToPrimitive on a wrapper runs OrdinaryToPrimitive (honors user valueOf/toString) (§built-ins)
GetPrototypeFromConstructor uses default proto when newTarget.prototype isn't an object (§built-ins)
%ThrowTypeError% has own non-configurable name ("")/length (0) (§built-ins)
Function.prototype has own name ("") and length (0) (§built-ins)
install name/length on ArrayBuffer.isView + Function.prototype[Symbol.hasInstance] (§built-ins)
concise methods / accessors / class methods are not constructors (§language)
(proxy) Object.getOwnPropertyNames forwards to target for a trap-less proxy (§built-ins)
(iter) array destructuring/for-of honor an overridden Array Symbol.iterator (§language)
(intl) NumberFormat/DateTimeFormat/Collator/Segmenter constructor length is 0 (§3.9)
(intl) reject Symbol locale-list elements + DisplayNames uses CanonicalizeLocaleList (§3.9)
(intl) DisplayNames length=2 + localeMatcher validated first (§3.9)
(intl) Collator.resolvedOptions returns Collator keys, not NumberFormat (§3.9)
(intl) DateTimeFormat resolvedOptions property order (§3.9)
(typedarray) default sort places -0 before +0 (§3.6)
(intl) NumberFormat.formatToParts decomposes unit/compact suffixes (§3.9)
(intl) segments.containing coerces index via ToIntegerOrInfinity (§3.9)
(intl) Date.prototype.toLocale{,Date,Time}String apply DateTimeFormat options (§3.9)
(intl) Number.prototype.toLocaleString applies all NumberFormat options (§3.9)
(intl) String.prototype.localeCompare honors numeric/sensitivity options (§3.9)
(intl) Intl.Segmenter.resolvedOptions reports locale + granularity (§3.9)
(module) re-exporting an imported binding follows the import (§3.1)
(module) named imports resolve inside functions called cross-module (§3.1)
(module) a module namespace object reports Object.isSealed true (§3.1)
(intl) accounting parens are en-family only; de-DE keeps the minus (§3.9)
(intl) accounting currency post-processes the locale-correct output (de-DE) (§3.9)
(array) C.fromAsync populates a subclass result via CreateDataPropertyOrThrow (§3.7)
(intl) DisplayNames.of honors fallback for a not-found name (§3.9)
(intl) DisplayNames resolvedOptions + style/fallback/languageDisplay defaults (§3.9)
(intl) signDisplay "negative" excludes negative zero (§3.9)
(intl) currencySign "accounting" parenthesizes negative currency (§3.9)
(intl) apply roundingIncrement (round to nearest step) (§3.9)
(intl) trailingZeroDisplay "stripIfInteger" drops trailing zeros (§3.9)
(intl) a lone significant-digit option defaults the other (§3.9)
(intl) limit native-super resolution to NumberFormat/DateTimeFormat (§3.9)
(intl) DisplayNames requires a valid type option (§3.9)
(intl) signDisplay "always" on -0 is "-0", not "-+0" (§3.9)
(lexer) HTML-like comments are script-only, not in modules (§3.9)
(intl) NumberFormat / DateTimeFormat subclassing (§3.9)
(intl) all service constructors are non-enumerable properties of Intl (§3.9)
(regex) \b inside a character class is a backspace (§3.6)
(class) a static method captures the class scope (self-name visible) (§3.6)
(class) the class-name inner binding is an immutable const (§3.6)
(class) static private members are not inherited by a subclass (§3.6)
(class) private methods install after super(), not at allocation (§3.6)
(string) match/replace/etc. read @@method only for an Object arg (§3.6)
(array) C.from populates a subclass result via CreateDataPropertyOrThrow (§3.6)
(class) AggregateError subclass errors + Symbol/BigInt non-constructor super (§3.6)
(class) WeakRef / FinalizationRegistry subclassing (§3.6 subclass builtins)
(error) a native-error subclass resolves .constructor to the subclass (§3.6)
(string) for-in enumerates a String object's index keys (§3.6)

Other

(test262) re-bless ledger (293 -> 287 known failures)
refresh the Test262 headline to the gated 99.45% (51,603/51,890)
fix a broken intra-doc link in the trig helpers
(temporal) memoize the lunisolar sui and year resolutions
(roadmap) mark §3.10 non-ISO calendar arithmetic landed
(test262) re-bless ledger (295 -> 292 known failures)
refresh the Test262 headline to the gated 99.44% (51,598/51,890)
(intl) drop the redundant 'static lifetimes on the generated tables
(test262) re-bless ledger (325 -> 295 known failures)
(roadmap) record why a plain rope memo is the wrong fix
(collections) hash-index Map/Set lookups (O(n) -> O(1) per operation)
(roadmap) add the three open items found this session, refresh headline
(readme) update the Test262 pass-rate to the measured 99.4% (51,565/51,890)
(test262) re-bless ledger (378 -> 325 known failures)
(array) serve push/pop without snapshotting the whole array
(regex) make global match/replace/split linear in the subject length
(engine) O(1) string type test (string += quadratic -> linear)
(engine) flatten per-iteration let environments (quadratic -> linear)
intl 0.5.0 → 0.5.1 (chinese range 1800-2200 + islamic/persian data) (+11)
bump timezone-data 0.1→0.2, enable puremp rational+decimal
(test262) un-ledger 3 detached-copyWithin tests that pass in release (+3)
(ci) fix clippy (--all-features --all-targets) and rustdoc warnings
(array) lock in first-class prototype-method behavior (already implemented)
(test262) re-bless ledger (3509 -> 3428 known failures)
(test262) re-bless ledger (3774 -> 3676 known failures)
(test262) re-bless ledger (3897 -> 3896 known failures)
(test262) re-bless ledger (4267 -> 3981 known failures)
(test262) re-bless ledger (2518 -> 4391 known failures)
(jit) record Pass 6 inline fast paths landed (property + element)
(jit) repr(C)/repr(u8) on the property-GET hot types (Pass 6 prep)
(jit) record generic tier (Passes 1-5) landed in ROADMAP §2.1 + design status
(jit) design + pass spine for JIT completion (§2.1)
(roadmap) mark §4.1 event loop, §4.3 web globals, §4.5 node builtins landed
(host) src/host module for the §4 runtime (web/node/timers stubs)
(roadmap) mark tail-call optimization implemented — §3.9 skipped-subsystems complete
(roadmap) mark Atomics $262.agent cooperative scheduler implemented (§3.8)
(roadmap) mark cross-realm implemented (identity bulk, §3.9)
(roadmap) mark IsHTMLDDA/decorators/import-attributes implemented (§3.9)
(roadmap) mark Temporal implemented (~90%, un-skipped) in §3.9
(temporal) add timezone-data dep for Temporal.ZonedDateTime
(temporal) implementation guide for the per-type fan-out
de-ledger 5 more $262.evalScript tests flipped by the indirect-eval fix
$262.evalScript is indirect eval (global scope) not direct
de-ledger 8 postfix/prefix tests flipped by the read_ident_ref fix
Revert "fix(string): replaceAll/matchAll use spec IsRegExp ([[Get]] @@match, propagates)"
skip $262.agent tests + ledger newly-surfaced SAB-feature failures
(test262) bless 5 flips (gate 0-reg), session -868
(test262) bless 20 flips TDZ+array-mutators (gate 0-reg), session -863
(test262) bless 9 flips (gate 0-reg), session -843
(test262) bless 6 flips (gate 0-reg), session -834
(test262) bless 8 flips (gate 0-reg), session -828
(test262) bless 10 flips (gate 0-reg), session -820
(test262) bless 7 flips (gate 0-reg), session -810
(test262) bless 23 flips (gate 0-reg), session -803
(test262) bless 36 flips (gate 0-reg), session -780
(test262) bless 38 flips (gate 0-reg), session -744
(test262) bless 27 flips (gate 0-reg), session -706
(test262) bless 1 flips (gate 0-reg), session -679
(test262) bless 8 flips (gate 0-reg), session -678
(test262) bless 14 flips (gate 0-reg), session -670
(test262) bless 16 flips (gate 0-reg), session -656
(test262) bless 24 flips (gate 0-reg), session -640
(test262) bless 3 flips (gate 0-reg), session -616
(test262) bless 19 flips (prototype-descriptor/freeze-seal, gate 0-reg), session -613
collapse freeze_object aux if-let to a let-chain (clippy)
(test262) bless 11 flips (gate 0-reg), session -594
(test262) bless 30 flips (gate 0-reg), session -583
(test262) bless 5 flips (Atomics.pause/Locale Info, gate 0-reg), session -553
(test262) bless 1 flips (AggregateError etc., gate 0-reg), session -548
(test262) bless 2 more arity flips (padStart/padEnd/AggregateError), session -547
(test262) bless 14 arity flips (Map/Set/etc. constructor+method lengths, gate 0-reg, 94.35%)
(test262) ledger 3 generator/async prototype not-callable tests (proto conflation)
(test262) bless 8 flips (anon-function name materialization, gate 0-reg), session -534
(test262) bless 23 flips (Iterator toStringTag + well-known symbols, gate 0-reg), session -526
fn_name_unset uses is_none_or (clippy)
(test262) bless 8 flips (ToPrimitive wrapper coercion + JSON, gate 0-reg), session -503
(test262) bless 24 flips (concise-method/name-length/GetPrototypeFromConstructor, gate 0-reg), session -495
(test262) re-bless ledger (2598 -> 2601 known failures)
(test262) bless 5 more flips (gate-confirmed 0 regressions), session -461
(test262) bless 45 array-iterator destructuring flips (iter-val-array-prototype)
Revert empty ledger — bless script bug (empty capture → awk treated ledger as skip file)
(test262) bless remaining 2632 array-iterator flips (gate-confirmed 0 regressions, 94.16%)
(test262) bless 40 flips (array-iterator ~110 + intl402, gate-confirmed 0 regressions)
(test262) bless 11 flips (Intl subclassing + Locale, gate-confirmed 0 regressions)
(test262) bless 5 Locale flips (language/script/region validation + firstDayOfWeek)
(test262) remove 6 now-passing Intl.Locale tests (variants + option validation)
(test262) remove 3 now-passing DateTimeFormat resolvedOptions tests
Revert "Collator resolvedOptions" changes — locale -u- canonicalization gap caused regressions
(test262) remove 3 now-passing DateTimeFormat resolvedOptions order tests
(test262) remove 2 now-passing entries (numbering-systems + supportedValuesOf)
(intl) fix hanidec assertion after completing the numbering table
(test262) add KATAAN_TEST262_FILTER for local subset runs; note Atomics/SAB status
(test262) remove 1 now-passing entry (Atomics/pause — namespace now present)
(roadmap) record the single-agent Atomics/SAB deterministic core as done (§3.6)
(test262) remove 2 now-passing entries (formatToParts unit/compact + TA sort -0/+0)
(test262) remove 2 now-passing ledger entries (Segmenter containing index-coercion)
(roadmap) refresh headline (≈93.9%) + record this cycle's converted clusters
(test262) remove 4 now-passing ledger entries (Number/Date toLocaleString)
(test262) remove 12 now-passing ledger entries (Segmenter + module)
(intl) regression tests for this cycle's Segmenter/localeCompare/toLocaleString fixes
(test262) remove 2 now-passing ledger entries (module import-closure fix)
(embed) demo native state (napi_wrap) in the host-fn example
(roadmap) record §4.0 native state + finalizers landed; Rust API feature-complete
(roadmap) record §4.0 async continuation (deferred promises) landed
(roadmap) record §4.0 handle scope (persistent handles) landed
(roadmap) record §4.0 host-boundary panic-trapping landed
(roadmap) record §4.0 host constructors landed
(test262) remove 15 now-passing ledger entries (DisplayNames resolvedOptions + fromAsync)
(embed) expand the host-fn example with the §4.0 M2 introspection API
(roadmap) record §4.0 M2 Ctx expansion (inspection/property/promise API)
(test262) remove 8 now-passing ledger entries (NumberFormat signDisplay/formatting)
(roadmap) refresh headline pass-rate (≈93.8%) + record converted clusters
fix fromAsync dense-storage test — observe via microtask drain
(test262) remove 38 now-passing ledger entries (formatRange + DisplayNames + Intl structural)
fix roundingIncrement test — inline JS (format! braces broke compilation)
(test262) remove 15 now-passing ledger entries (Intl structural + regex/octal)
(test262) remove 31 now-passing ledger entries (live typed-array iter + AnnexB octal/comments)
(test262) remove 35 now-passing ledger entries (class-cluster fixes)
(test262) remove 15 now-passing ledger entries (live Set/Map iteration + regression cleared)
(test262) remove 40 now-passing ledger entries (String-exotic, BigInt, subclass, etc.)

Contributors

method and match

Assets 6