Malte UblandClaude Opus 5.5 6cea7a348f Run Array.prototype's generic methods over array-like receivers ...

Array.prototype.push.call({length: 1, 0: "x"}, "y") and its siblings
answered "not supported yet": the checked-dynamic array dispatch only ran
the methods of a receiver that is a real array, though the algorithms are
generic in the language. PR #2505 implemented them inside scr_dyn_invoke.c,
which every program that links that unit then differed on (373 DIFFERS,
108 runtime-only programs), so it was withheld.

The algorithms now live in their own gated unit, scr_dyn_array_like.c,
reached through a distinct libCall (dyn.arrayLikeProtoCall) that only a
JavaScript source emits. A native array receiver, or a live typed-ref array,
delegates to the invoke unit's dispatch, so the array path keeps one
implementation and its exact bytes. Methods: concat, copyWithin, fill,
flat, flatMap, join, pop, push, reverse, shift, splice, toReversed,
toSorted, toSpliced, unshift, with.

Each algorithm starts with `? ToObject(this value)`, so a nullish
receiver is a TypeError before any length is read — the check the invoke
unit answers for its own receivers.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2026-10-29 05:38:56 -07:00

..

fixtures

Read TypeScript 7.1's binary AST format beside 7.0's

2026-10-26 11:27:36 -05:00

ts7

Run Array.prototype's generic methods over array-like receivers

2026-10-29 05:38:56 -07:00

array-batch-emission.test.ts

…

array-index-product-emission.test.ts

Index arrays with exact i64 products of int32 values

2026-10-22 13:11:34 -05:00

array-induction-read-emission.test.ts

Shrink the array header to 48 bytes

2026-10-20 00:21:45 -05:00

array-length-range-emission.test.ts

Shrink the array header to 48 bytes

2026-10-20 00:21:45 -05:00

array-own-key-emission.test.ts

…

array-pipeline-fusion.test.ts

Keep the helper for callbacks that read a local class's captures

2026-10-25 04:54:28 -05:00

asserted-arm-probe-emission.test.ts

Extend asserted probes to the bracket spelling and union arms

2026-10-28 09:37:10 -07:00

await-call-emission.test.ts

Run native async generators as stackless coroutines

2026-10-26 07:28:50 -05:00

bigint-literal-emission.test.ts

…

blob-boundaries.test.ts

…

buffer-from-dynamic.test.ts

…

byte-loop-emission.test.ts

…

byte-number-emission.test.ts

…

byte-window-emission.test.ts

…

bytes-callback-helpers.test.ts

Call typed-array callbacks directly and visit on an integer counter

2026-10-22 04:44:34 -05:00

bytes-element-emission.test.ts

Give every native function an unwind table entry

2026-10-26 21:49:14 -05:00

bytes-field-borrow-emission.test.ts

Merge main

2026-10-20 17:56:44 -05:00

bytes-header-load-emission.test.ts

Read a typed array's length without an invariant header load

2026-10-25 09:59:43 -05:00

call-lifetimes.test.ts

Keep the source stack-box tests' Set element unions boxed through the emission option

2026-10-28 18:22:49 -05:00

callback-loop-versions.test.ts

Keep callback loop versions from nesting

2026-10-22 09:55:01 -05:00

callback-pending-emission.test.ts

Match the pending-flag fallback edge after the callback's receiver block

2026-10-25 17:42:53 -05:00

canon-normalize.test.ts

Degrade a canonical form whose union mapped to the checked dynamic

2026-10-27 10:32:32 -05:00

cc-driver.test.ts

Support crypto.createDiffieHellman and getDiffieHellman

2026-10-21 21:55:47 -05:00

chunked-emission.test.ts

Merge main

2026-10-25 10:07:50 -05:00

cjs-lexer-cases.ts

…

cjs-lexer.test.ts

…

class-attributes.test.ts

Undo the main merge on a stacked branch

2026-10-25 05:03:57 -05:00

class-field-updates.test.ts

…

class-method-mutations.test.ts

Guard direct calls after dot-property method writes through dictionary views

2026-10-23 21:34:14 -05:00

class-narrowing-emission.test.ts

…

class-protocol-boundaries.test.ts

Keep a literal's accessors live through a declared data member

2026-10-28 17:58:04 -07:00

class-structural-views.test.ts

Keep the error itself when an interface extends Error

2026-10-28 13:16:21 -07:00

collection-ingestion.test.ts

…

collection-keys.test.ts

Represent Dates as objects with identity

2026-10-22 20:33:09 -05:00

compat-exports.test.ts

Build the large compiler tables on first use

2026-10-25 05:23:35 -05:00

compiler-weak-collections.test.ts

…

completion-callbacks.test.ts

Run completion callbacks in their call's AsyncLocalStorage context, and add bind, snapshot and store options

2026-10-22 06:11:52 -05:00

constant-choice-emission.test.ts

Read a constant choice's index as on every path when it is the compared local

2026-10-26 01:47:16 -05:00

constant-graphs.test.ts

Merge remote-tracking branch 'origin/fix/js-dynamic-lowering' into HEAD

2026-10-25 13:46:26 -07:00

constant-table-emission.test.ts

…

constructed-class-dispatch.test.ts

…

counted-loop-emission.test.ts

Run short runs of small innermost worker loops without a poll

2026-10-28 06:14:20 -05:00

cpu-dispatch-emission.test.ts

Give every native function an unwind table entry

2026-10-26 21:49:14 -05:00

create-require-native-addon.test.ts

…

date-time-values.test.ts

Keep Dates as time values where no use observes their identity

2026-10-22 20:36:52 -05:00

debug-variables.test.ts

Keep a union loop binding in the debug-variables fixture

2026-10-25 07:46:24 -05:00

decl-origin-quoting.test.ts

Quote declaration-derived arguments in suggested type-patch commands

2026-10-25 18:53:50 -05:00

deep-equality.test.ts

…

dictionary-views.test.ts

Keep checked dictionary protocols and invalidate direct calls after method writes

2026-10-23 20:45:37 -05:00

discriminated-json.test.ts

…

emit-llvm.test.ts

Compute with NaN-boxed jsval values in the dynamic tier

2026-10-18 15:11:32 -07:00

emitter-flex-events.test.ts

…

ffi-lowering.test.ts

…

forin-keys.test.ts

Update tests for the record-ops store hook and the untyped-writes benchmark

2026-10-26 21:04:31 -05:00

format-float-arguments.test.ts

Run lone array callbacks as loops with their bodies inlined

2026-10-23 09:25:07 -05:00

fromcharcode-emission.test.ts

Compute with NaN-boxed jsval values in the dynamic tier

2026-10-18 15:11:32 -07:00

fs-glob-boundaries.test.ts

…

fs-write-options.test.ts

Address the child-lifecycle, stream-alias and fs write-options reviews

2026-10-28 09:15:37 -07:00

function-extra-optional-params.test.ts

Lower function values with extra optional parameters into narrower slots

2026-10-27 11:45:13 -07:00

function-layout.test.ts

Give the entry module's top-level code a partition of its own

2026-10-28 13:57:13 -05:00

function-table-dispatch-emission.test.ts

Keep borrowed fallbacks alive until their consumer and address review feedback

2026-10-25 19:42:59 -05:00

gen-wasm-spec-cases.mjs

Decode and validate the WebAssembly modules a program can load, and report them in coverage

2026-10-18 15:19:39 -07:00

generator-emission.test.ts

Give every native function an unwind table entry

2026-10-26 21:49:14 -05:00

generic-class-recovery.test.ts

…

generic-specialization-boundaries.test.ts

…

in-runtime-key-emission.test.ts

Name lowered helpers and closures independently of lowering order

2026-10-22 03:44:38 -05:00

indexed-comparison.test.ts

…

inline-array-fields.test.ts

Merge main

2026-10-27 23:02:33 -05:00

inline-record-assertion.test.ts

…

input-lifetime-emission.test.ts

…

int32-array-contracts.test.ts

…

int32-dynamic-exposure.test.ts

Keep int32 fields in programs with adopting casts

2026-10-26 02:57:52 -05:00

int32-element-array-emission.test.ts

Find the counter loop's fast copy inside its entry version

2026-10-27 08:31:01 -05:00

int32-global-emission.test.ts

Prove module-level number state int32 through every write

2026-10-27 07:57:22 -05:00

int32-local-emission.test.ts

…

int32-reflection-emission.test.ts

…

int32-slots-transfer.test.ts

Compute dev builds' int32 slot analysis on a forked process

2026-10-25 02:15:04 -05:00

integer-bitwise-arithmetic.test.ts

…

integer-induction-conversion.test.ts

…

integer-read-emission.test.ts

…

integer-view-compares.test.ts

Undo the main merge on a stacked branch

2026-10-25 05:03:57 -05:00

integer-view-emission.test.ts

…

internal-compiler-error.test.ts

…

ir.test.ts

Undo the main merge on a stacked branch

2026-10-25 05:03:57 -05:00

iterable-union-forof.test.ts

Test that a for..of beside never[] evaluates its source once

2026-10-28 18:30:09 -07:00

js-class-layouts.test.ts

Box JavaScript class instances at their exact class

2026-10-23 17:41:28 -07:00

js-collection-types.test.ts

Undo the main merge on a stacked branch

2026-10-25 05:03:57 -05:00

js-ic-emission.test.ts

Read class instance fields inline at dynamic-tier property sites

2026-10-26 21:39:18 -05:00

js-override-returns.test.ts

…

js-receiver-reads.test.ts

Pass numbers to directly called untyped functions as jsvals

2026-10-28 02:20:29 -05:00

json-callbacks.test.ts

Revert "Continue a failed checked cast with its value in a dynamic tail (#1561)"

2026-10-20 16:42:01 -07:00

json-schema-parse-emission.test.ts

Undo the main merge on a stacked branch

2026-10-25 05:03:57 -05:00

keyed-method-writes.test.ts

Keep class methods native when element writes store data under their names

2026-10-23 13:20:59 -05:00

large-pages.test.ts

Add --large-pages: move executable code onto transparent huge pages

2026-10-26 23:41:46 -05:00

lib-diagnostics-options.test.ts

Reuse lib diagnostics across options that cannot change them

2026-10-28 08:56:40 -05:00

library-computed-methods.test.ts

…

library-identity-emission.test.ts

…

live-view-commit-emission.test.ts

…

llvm-lib-dispatch.test.ts

Compute with NaN-boxed jsval values in the dynamic tier

2026-10-18 15:11:32 -07:00

llvm-remainder.test.ts

Compute Math functions as V8 does and link libm only when a program needs it

2026-10-25 19:48:38 -05:00

llvm-runtime-abi.test.ts

Support named properties and Symbol.species on typed arrays held as untyped values

2026-10-23 21:30:21 -05:00

local-class-private-boundaries.test.ts

Merge main

2026-10-20 17:56:44 -05:00

localized-failure-retries.test.ts

Run registered classes' static initializers in place and keep retried statements' diagnostics

2026-10-25 23:22:35 -05:00

loop-entry-versions.test.ts

Version for loops on the positions they advance

2026-10-27 07:44:34 -05:00

map-closure-elements.test.ts

Give a .map callback that answers a closure an ordinary function element

2026-10-28 13:17:13 -07:00

map-get-borrow-emission.test.ts

Keep a Map.get result owned when its key can replace the map's holder

2026-10-25 03:25:37 -05:00

match-row-emission.test.ts

Merge main

2026-10-19 07:55:06 -05:00

math-receiver-borrow.test.ts

…

mobile-runtime-pack.test.ts

…

namespace-member-fences.test.ts

Undo the main merge on a stacked branch

2026-10-25 05:03:57 -05:00

nan-coded-reads.test.ts

…

narrow-guard-emission.test.ts

Say that a lying type predicate can fail a narrowing guard

2026-10-18 07:31:43 -07:00

narrow-guard-traps.test.ts

Say that a lying type predicate can fail a narrowing guard

2026-10-18 07:31:43 -07:00

native-callable-values.test.ts

Merge main

2026-10-20 17:56:44 -05:00

native-callback-emission.test.ts

…

native-class-array-boundaries.test.ts

…

native-class-descriptors.test.ts

Merge main

2026-10-20 17:56:44 -05:00

native-codegen-integration.test.ts

Reuse the completion callback a stream passes to its option callbacks

2026-10-26 02:48:03 -05:00

native-codegen-lowering.test.ts

zlib: Brotli compression and decompression over the vendored brotli 1.2.0

2026-10-23 18:11:49 -05:00

native-constructors.test.ts

Put program constructors in .init_array on ELF

2026-10-28 20:37:15 -05:00

native-json-value-end.test.ts

Undo the main merge on a stacked branch

2026-10-25 05:03:57 -05:00

native-partitions.test.ts

Give the entry module's top-level code a partition of its own

2026-10-28 13:57:13 -05:00

native-profile.test.ts

Name program modules by the entry's file name so profiles match in every checkout (#2462)

2026-10-28 06:43:48 -05:00

native-ts7-process.test.ts

…

node-fallback-modules.test.ts

Load a Node module's fallback declarations only when the program names it

2026-10-25 15:36:08 -05:00

node-index.test.ts

Keep emission's workers busy

2026-10-27 21:43:36 -05:00

node-pin.test.ts

Load a Node module's fallback declarations only when the program names it

2026-10-25 15:36:08 -05:00

numeric-array-reads.test.ts

…

numeric-call-specialization.test.ts

Specialize calls that omit a constant default and drop unreached originals

2026-10-27 10:49:22 -05:00

observed-method-guard.test.ts

Keep the dynamic call for observed methods called with a spread argument

2026-10-23 00:05:57 -05:00

offset-index-emission.test.ts

Check offset typed-array indexes against the sum for fractional bases and keep the base the sum read

2026-10-27 00:28:04 -05:00

package-shim-guard.test.ts

Build @hono/node-server 2.x into scriptc

2026-10-22 19:32:49 -07:00

parameter-version-emission.test.ts

Version functions on number parameters that bound their loops

2026-10-22 11:46:21 -05:00

performance-entry-boundaries.test.ts

…

periodic-guard-emission.test.ts

Unroll counted loops by the period of a guard on the counter's low bits

2026-10-26 10:19:25 -05:00

power-of-two-quotient-emission.test.ts

Divide by Math.pow(2, n) as a multiply by its reciprocal

2026-10-23 22:59:39 -05:00

process-builtin-values.test.ts

…

process-listener-int32-emission.test.ts

…

promise-union-widening.test.ts

Merge a union's promise arms into one promise of their payload union

2026-10-28 13:17:05 -07:00

property-bag-emission.test.ts

…

recorded-lowering.test.ts

List the held entries a unit record reads, and leave units that register units or add class fields without one

2026-10-27 13:31:11 -05:00

regex-capture-emission.test.ts

…

regex-matcher-bounds.test.ts

Bound compiled regex reads by the characters left in the subject

2026-10-22 08:03:32 -05:00

regex-replace-lifetimes.test.ts

Release a substitution's operands when it returns

2026-10-26 08:30:42 -05:00

regex-replacers.test.ts

Run global substitutions with a literal replacement through build-time replacers

2026-10-25 13:35:04 -05:00

replacer-params.test.ts

Keep replace callback parameters checked-dynamic where parseInt or parseFloat expects another type

2026-10-25 06:42:25 -05:00

running-extrema-branches.test.ts

Keep running maximum and minimum updates as branches

2026-10-22 08:16:36 -05:00

runtime-optional-precision.test.ts

Call toJSON on foreign elements and merge main

2026-10-25 13:13:02 -05:00

scalar-record-emission.test.ts

…

self-hosting-boundaries.test.ts

…

set-iterator-seeds.test.ts

…

shape-inference.test.ts

Read added primitive members and unmatched exec groups as unknown values

2026-10-25 10:31:13 -05:00

shape-overlay-cost.test.ts

Cut the shape overlay's compile cost: memo across builds, comparison first, one analysis for fold-only rewrites

2026-10-25 12:12:45 -07:00

shape-overlay-patches.test.ts

Cut the shape overlay's compile cost: memo across builds, comparison first, one analysis for fold-only rewrites

2026-10-25 12:12:45 -07:00

shape-overlay-render.test.ts

Merge remote-tracking branch 'origin/perf/shape-site-clones' into HEAD

2026-10-25 13:44:08 -07:00

size-conversions.test.ts

…

source-debugging.test.ts

…

source-output.test.ts

Add --large-pages: move executable code onto transparent huge pages

2026-10-26 23:41:46 -05:00

speculative-hoisted-functions.test.ts

Merge main

2026-10-20 17:56:44 -05:00

speculative-loop-emission.test.ts

Keep the view-header test's loops speculative

2026-10-27 08:41:05 -05:00

split-loop-emission.test.ts

…

stable-names.test.ts

Keep the native compiler's profile matching its functions

2026-10-26 15:31:14 -05:00

startup.test.ts

…

static-object-guards.test.ts

Dispatch a table exhaustively only from calls that name the function

2026-10-25 22:43:19 -05:00

static-receiver-boundaries.test.ts

…

string-accumulation-emission.test.ts

Compute with NaN-boxed jsval values in the dynamic tier

2026-10-18 15:11:32 -07:00

string-and-array-lifetimes.test.ts

Keep the source stack-box tests' Set element unions boxed through the emission option

2026-10-28 18:22:49 -05:00

string-char-at-emission.test.ts

Read ASCII characters of strings inline in charAt and indexing

2026-10-21 13:12:24 -05:00

string-char-loop-emission.test.ts

Undo the main merge on a stacked branch

2026-10-25 05:03:57 -05:00

string-iteration-emission.test.ts

Iterate strings over their bytes

2026-10-25 13:00:18 -05:00

string-scan-emission.test.ts

Undo the main merge on a stacked branch

2026-10-25 05:03:57 -05:00

string-unit-loop-emission.test.ts

Convert a loop's string receiver to UTF-16 at once only when the loop can read enough of it

2026-10-25 07:37:50 -05:00

structural-value-boundaries.test.ts

Evaluate effectful receivers and keys once in the new lowerings

2026-10-28 12:01:33 -07:00

style-text.test.ts

…

symbol-fields.test.ts

…

target-cpu-emit.test.ts

Check target CPU levels in the native CLI and honor them for assembly and object builds

2026-10-23 18:26:12 -05:00

timer-delay-lowering.test.ts

Convert number | undefined timer delays with ToNumber

2026-10-27 09:11:51 -07:00

trunc-emission.test.ts

…

tuple-forof.test.ts

…

type-mapper-unions.test.ts

Name lowered helpers and closures independently of lowering order

2026-10-22 03:44:38 -05:00

type-patches-command.test.ts

Address review feedback

2026-10-25 19:42:02 -05:00

type-patches.test.ts

Merge main

2026-10-25 15:18:27 -05:00

typed-array-alias-scope-emission.test.ts

Undo the main merge on a stacked branch

2026-10-25 05:03:57 -05:00

typed-array-read-boxing.test.ts

…

typed-array-union-emission.test.ts

Merge main

2026-10-23 19:28:30 -05:00

unassigned-field-reads.test.ts

…

undici-shim-framing.test.ts

Merge main

2026-10-20 11:00:03 -05:00

undici-shim-types.test.ts

Give the undici npm cases a 600 s timeout

2026-10-19 23:38:15 -05:00

union-array-lowering.test.ts

Convert every arm of a mixed union into the array width

2026-10-28 09:37:11 -07:00

union-scalar-equality-emission.test.ts

Read the union payload inline when comparing it with a number or boolean

2026-10-22 09:32:19 -05:00

untyped-nullish-scalar.test.ts

Test a scalar optional left of ?? in JavaScript on the typed path

2026-10-26 11:12:57 -05:00

untyped-push-emission.test.ts

Dispatch untyped calls on plain arrays without the method ladder

2026-10-24 00:43:56 -05:00

util-runtime-linking.test.ts

…

var-hoisting.test.ts

…

wasi-paths.test.ts

…

wasm-spec-cases.txt

Decode and validate the WebAssembly modules a program can load, and report them in coverage

2026-10-18 15:19:39 -07:00

wasm-spec.test.ts

Decode and validate the WebAssembly modules a program can load, and report them in coverage

2026-10-18 15:19:39 -07:00

while-bytes-bounds-emission.test.ts

Undo the main merge on a stacked branch

2026-10-25 05:03:57 -05:00

while-induction-emission.test.ts

Keep while-loop counters bounded by a typed array length in integers

2026-10-24 12:37:29 -05:00

widened-returns.test.ts

Key widened returns by their type-parameter bindings and skip self-calls

2026-10-24 13:32:14 -05:00

worker-shared-loop-version-emission.test.ts

Read and write shared typed-array elements at a counted loop's counter with plain accesses

2026-10-25 22:44:42 -05:00

worker-threads.test.ts

…