Chris Tate 42954a3266 Add mock.fn and t.mock.fn with Node's calls log and implementation controls ...

node:test's mock.fn(original[, implementation]) and t.mock.fn compile.
A Mock<F> is the function-with-properties record { %call, mock }: the
callable is a wrapper closure that shares the mock context with the mock
field. The context records each call's arguments, result, error and this,
and keeps the current implementation, the original and the one-time
implementations by call index. fn.mock supports, as in Node 24.22:

- calls, read as a copy of the log;
- callCount();
- mockImplementation(fn);
- mockImplementationOnce(fn[, onCall]), for the next call by default, a
  later registration for the same index replacing the earlier one;
- resetCalls();
- restore(), which brings back the original.

A throwing implementation records the error and rethrows it. Functions
with fixed parameters or a single rest array parameter are supported; a
union return type needs an undefined arm. mock.fn() without an original,
mock.method, the tracker's reset and restoreAll, and t.mock.method are
refused with SC2020.

The node:test fixture mock-fn compares the behavior with Node, and
tests/diagnostics/mock-fences.ts covers the refusals.

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

..

cjs-esm-lexer-require-reached

init

2026-07-22 18:08:04 -05:00

cjs-module-mutation

feat: add static CommonJS module graph (#332)

2026-09-15 21:17:31 -05:00

cjs-require-cycle

init

2026-07-22 18:08:04 -05:00

cjs-require-esm-type-link

Enforce TypeScript 7 and Node type-link parity (#315)

2026-09-14 09:19:08 -05:00

cjs-require-tdz

init

2026-07-22 18:08:04 -05:00

cycle-class-early

Initialize import cycles in module evaluation order (#740)

2026-10-08 11:29:07 -05:00

cycle-default-export

Initialize import cycles in module evaluation order (#740)

2026-10-08 11:29:07 -05:00

cycle-namespace-import

Initialize import cycles in module evaluation order (#740)

2026-10-08 11:29:07 -05:00

cycle-var-early

Initialize import cycles in module evaluation order (#740)

2026-10-08 11:29:07 -05:00

deferred-class-binding

Report a rejected declaration's own diagnostic when a discarded probe flushed it first

2026-10-09 23:07:57 -05:00

deferred-class-receiver

Report a rejected declaration's own diagnostic when a discarded probe flushed it first

2026-10-09 23:07:57 -05:00

dynamic-import

init

2026-07-22 18:08:04 -05:00

esm-syntax-commonjs

fix(compiler): support implicit top-level await modules (#94)

2026-08-08 11:35:01 -05:00

import-defer

init

2026-07-22 18:08:04 -05:00

import-defer-type

init

2026-07-22 18:08:04 -05:00

import-forms

init

2026-07-22 18:08:04 -05:00

invalid-package-config

fix(compiler): support implicit top-level await modules (#94)

2026-08-08 11:35:01 -05:00

json-module-comment

init

2026-07-22 18:08:04 -05:00

json-modules

init

2026-07-22 18:08:04 -05:00

json-shape

init

2026-07-22 18:08:04 -05:00

ns-import-object

Add static literal dynamic imports (#363)

2026-09-20 15:59:34 -05:00

pkg-import-fences

init

2026-07-22 18:08:04 -05:00

retired-engine-import-refusal

Make scriptc compilation native-only

2026-10-12 12:25:30 -05:00

spi-off

Deferred-init fields: stream!-style classes lower with typed extraction reads

2026-07-23 00:40:54 -05:00

top-level-await-commonjs

fix(compiler): support implicit top-level await modules (#94)

2026-08-08 11:35:01 -05:00

top-level-await-module-leak

fix(compiler): support implicit top-level await modules (#94)

2026-08-08 11:35:01 -05:00

accessors.ts

Preserve interface identity and extend native library calls

2026-10-07 13:55:11 -05:00

aggregate-error-fences.ts

Implement Promise.allSettled and Promise.any

2026-10-13 19:12:53 -05:00

any.ts

Expand static support for common Effect 4 patterns (#600)

2026-10-01 17:36:29 -05:00

arrow-bind.ts

Compile renderer values and callbacks natively

2026-09-28 13:54:28 -05:00

assert-class-fences.ts

Add assert.deepEqual, partialDeepStrictEqual and the Assert class

2026-10-15 22:01:38 -05:00

assert-fences.ts

Add assert.deepEqual, partialDeepStrictEqual and the Assert class

2026-10-15 22:01:38 -05:00

async-iterator-handles.ts

feat: add static async iteration parity (#328)

2026-09-15 00:03:07 -05:00

bigint-fences.ts

Expand native collection keys and construction

2026-10-05 09:32:14 -05:00

blocked-binding-cascade.ts

Compile collection metadata and heterogeneous JavaScript tables natively

2026-09-28 22:20:24 -05:00

catch-bindings.ts

Preserve narrowed class values and collection composition

2026-10-08 01:21:43 -05:00

checker-panic-infinity.ts

perf: avoid repeated type queries and JavaScript binding scans (#630)

2026-10-03 07:40:13 -05:00

checker-panic-tuple.ts

init

2026-07-22 18:08:04 -05:00

child-process.ts

feat(child_process): support inline execFile callback options (#387)

2026-09-23 00:13:44 -05:00

class-decorators.ts

init

2026-07-22 18:08:04 -05:00

class-interface-refinements.ts

feat(compiler): preserve native type refinements for self-hosting

2026-09-28 08:12:06 -05:00

class-prototype-reflection.ts

feat: support static buffer constructors and prototype methods (#591)

2026-09-30 17:53:59 -05:00

class-values.ts

feat: support static Three.js collision workloads

2026-09-30 09:19:17 -05:00

collection-iterator-helpers.ts

Support stored Map and Set iterators in static builds (#618)

2026-10-02 13:26:27 -05:00

collection-views.ts

feat(compiler): enable native IR construction for self-hosting (#491)

2026-09-27 11:41:52 -05:00

component-fences.ts

Compile collection metadata and heterogeneous JavaScript tables natively

2026-09-28 22:20:24 -05:00

comptime.ts

init

2026-07-22 18:08:04 -05:00

console-fences.ts

Lower the rest of the global console

2026-10-13 18:55:55 -05:00

contract-acyclic-positions.ts

Acyclic: a dedicated default interface; shortest cycle in explanations

2026-10-11 16:30:25 -07:00

contract-acyclic.ts

Acyclic contract type: classes and object types that cannot lie on a cycle

2026-10-11 16:30:24 -07:00

contract-immutable.ts

Publish Immutable factory arrays only after provable index writes

2026-10-12 02:33:29 -05:00

contract-int32-escapes.ts

wip: contract types prototype

2026-10-11 11:17:17 -07:00

contract-int32.ts

wip: contract types prototype

2026-10-11 11:17:17 -07:00

contract-nothrow-handlers.ts

try/catch discharges NoThrow: handlers take what they catch

2026-10-11 16:30:24 -07:00

contract-nothrow.ts

Contract types: explain throwing paths, bind only declared functions, docs and baselines

2026-10-11 12:24:27 -07:00

contract-positions.ts

wip: contract types prototype

2026-10-11 11:17:17 -07:00

contract-program-lifetime-positions.ts

Add the ProgramLifetime contract: classes whose instances live until exit skip reference counting and cycle collection

2026-10-11 16:30:23 -07:00

contract-program-lifetime.ts

Merge main into feat/program-lifetime-publication

2026-10-12 09:38:24 -05:00

create-require.ts

Add static node:module parity (#361)

2026-09-20 14:44:19 -05:00

dataview.ts

Support native runtime values used by OpenTUI

2026-09-28 19:01:50 -05:00

date-formatters.ts

Fix static JavaScript edge cases and add Test262 coverage (#414)

2026-09-24 23:01:48 -05:00

date-union-fences.ts

Support Date instance lowering (#101)

2026-08-08 23:17:58 -05:00

deep-binary-nesting.ts

init

2026-07-22 18:08:04 -05:00

deep-nesting-preflight.ts

init

2026-07-22 18:08:04 -05:00

default-export.ts

Fixture and manifest bookkeeping for the graduated lowerings

2026-07-23 00:37:25 -05:00

delete-fences.ts

init

2026-07-22 18:08:04 -05:00

destructuring-fences.ts

Promote destructuring assignment targets, class-instance sources, class rest, and accessor defaults to the static tier

2026-07-23 17:27:25 -05:00

dynamic-import-static.ts

Add static literal dynamic imports (#363)

2026-09-20 15:59:34 -05:00

dynamic-representable-types.ts

Expand static support for common Effect 4 patterns (#600)

2026-10-01 17:36:29 -05:00

dynamic-surface.ts

Make compile blockers and Node differences actionable (#786)

2026-10-09 10:30:31 -05:00

ee-computed-internal.ts

Support scoped computed EventEmitter names (#389)

2026-09-23 00:38:45 -05:00

ee-computed-listeners.ts

Support scoped computed EventEmitter names (#389)

2026-09-23 00:38:45 -05:00

ee-computed-stream-internal.ts

Support scoped computed EventEmitter names (#389)

2026-09-23 00:38:45 -05:00

ee-computed-unrestricted.ts

Support scoped computed EventEmitter names (#389)

2026-09-23 00:38:45 -05:00

ee-emit-override.ts

Subclasses may override emit in the forwarding shape, monomorphized per event

2026-07-24 09:37:57 -05:00

enums.ts

init

2026-07-22 18:08:04 -05:00

es2025-fences.ts

Fresh-ArrayBuffer erasure, DataView setters, and named buffer fences

2026-07-23 19:45:15 -05:00

event-target-subclass-fences.ts

Support subclassing EventTarget and Event

2026-10-14 17:18:04 -05:00

exceptions.ts

Implement explicit resource management (#309)

2026-09-13 23:34:17 -05:00

fetch-static.ts

Expand static support for common Effect 4 patterns (#600)

2026-10-01 17:36:29 -05:00

filter-narrow.ts

init

2026-07-22 18:08:04 -05:00

filter-void-predicate-dyn.ts

fix(compiler): guard zero-arg dynamic filter calls

2026-08-17 10:34:43 -04:00

filter-void-predicate-dynamic.ts

fix(compiler): clarify void filter predicate fence

2026-08-14 10:27:38 -04:00

filter-void-predicate-island.ts

test(compiler): refresh filter void snapshot

2026-08-14 10:27:38 -04:00

filter-void-predicate.ts

fix(compiler): clarify void filter predicate fence

2026-08-14 10:27:38 -04:00

function-forms.ts

Add static builtin function values (#353)

2026-09-19 21:49:21 -05:00

function-limits.ts

init

2026-07-22 18:08:04 -05:00

generator-method-overrides.ts

Support static generator methods and loop bindings (#512)

2026-09-27 23:33:40 -05:00

generic-methods.ts

init

2026-07-22 18:08:04 -05:00

generic-signature-values.ts

Split the SC2001 catch-all into named type-fence families

2026-07-23 16:55:31 -05:00

generic-value-bindings.ts

Ambient roots trap whole chains; dead and nullish generic bindings lower to their runtime truth

2026-07-24 02:29:48 -05:00

generics.ts

Strengthen generic type and class boundaries

2026-10-07 11:47:54 -05:00

http2-module.ts

init

2026-07-22 18:08:04 -05:00

http2-response-trailers.ts

fix(http): enforce HTTP/1.1 Host requirement (#388)

2026-09-23 10:21:53 -05:00

identity-collection-keys.ts

Expand native collection keys and construction

2026-10-05 09:32:14 -05:00

import-equals-require.ts

init

2026-07-22 18:08:04 -05:00

import-meta-bare.ts

feat: support static ESM import metadata

2026-09-02 18:18:09 -05:00

import-meta-computed.ts

Expand Node 24 ESM metadata compatibility (#653)

2026-10-04 01:03:02 -05:00

import-meta-destructure.ts

Expand Node 24 ESM metadata compatibility (#653)

2026-10-04 01:03:02 -05:00

import-meta-rest.ts

Expand Node 24 ESM metadata compatibility (#653)

2026-10-04 01:03:02 -05:00

import-meta-write.ts

feat: support static ESM import metadata

2026-09-02 18:18:09 -05:00

imports.ts

init

2026-07-22 18:08:04 -05:00

index-signature-values.ts

Compose class references across unions and collections (#734)

2026-10-08 07:35:21 -05:00

inheritance.ts

Preserve narrowed class values and collection composition

2026-10-08 01:21:43 -05:00

intern-table-fences.ts

Add InternTable, a shared append-only table of published values

2026-10-15 19:59:56 -05:00

intersection-values.ts

fix(compiler): support branded primitive types (#320)

2026-09-14 13:46:36 -05:00

intl-segmenter.ts

Support native runtime values used by OpenTUI

2026-09-28 19:01:50 -05:00

intl.ts

The en-US Intl slice: composed NumberFormat and toLocaleString go static, the rest fences by name

2026-07-23 20:30:47 -05:00

iterator-slot-fences.ts

Carry optional values, never-returning calls and native iterators through typed returns (#739)

2026-10-08 11:04:59 -05:00

jsdoc-import-require.js

init

2026-07-22 18:08:04 -05:00

json-dyn.ts

feat: preserve class and child handles through unknown (#331)

2026-09-15 19:30:22 -05:00

local-class-boundaries.ts

Compile local class factories and spread calls natively

2026-09-28 20:11:25 -05:00

local-require-binding-esm.js

fix(compiler): support implicit top-level await modules (#94)

2026-08-08 11:35:01 -05:00

maps-surface.ts

Support stored Map and Set iterators in static builds (#618)

2026-10-02 13:26:27 -05:00

maps.ts

Expand native collection keys and construction

2026-10-05 09:32:14 -05:00

merged-namespace-collect-probe.ts

Fix both 0.0.10 crash sites: collect probes recover from poison, for-init declarators stay locals

2026-07-24 11:38:39 -05:00

mixed-compare.ts

init

2026-07-22 18:08:04 -05:00

mixins.ts

keyof-constrained generics monomorphize per literal key; generic-fn aliases register their target

2026-07-23 17:20:03 -05:00

mock-fences.ts

Add mock.fn and t.mock.fn with Node's calls log and implementation controls

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

module-out-of-scope.ts

Out-of-scope builtin modules say why: v8, inspector, node:sqlite, domain, and the underscore internals

2026-07-23 21:27:19 -05:00

module-resolution-introspection.ts

feat(compiler): add Node module resolution introspection (#322)

2026-09-14 18:15:44 -05:00

multiple-errors.ts

Parity bookkeeping for the new fixtures

2026-07-23 01:05:22 -05:00

namespaces.ts

init

2026-07-22 18:08:04 -05:00

new-target-field-initializer.ts

init

2026-07-22 18:08:04 -05:00

no-error-assertion-fences.ts

Support Node 24 no-error assertions (#648)

2026-10-03 20:16:24 -05:00

node-fallback-fence.ts

Lower timers/promises resolve values, the ref option and setInterval under @types/node

2026-10-15 18:18:45 -05:00

nullish-class-defaults.ts

Observe forwarded optional values and asserted class arms (#783)

2026-10-09 07:49:53 -05:00

optional-fields.ts

Implement sparse native arrays and missing-value parity (#297)

2026-09-12 22:39:07 -05:00

options-record.ts

Add dns.lookup's Node forms, lookupService, getServers and the default result order

2026-10-15 16:59:20 -05:00

outside-world.ts

Retire the "DOM" nickname in comments, internal docs, and message prose: the checked-dynamic tree / dyn values

2026-07-24 11:14:58 -05:00

overload-fences.ts

Add static callable specialization (#350)

2026-09-18 22:50:45 -05:00

overloaded-function-values.ts

Add static callable specialization (#350)

2026-09-18 22:50:45 -05:00

private-members.ts

Implement typed async generators (#310)

2026-09-14 00:38:06 -05:00

promise-all-fences.ts

Implement Promise.allSettled and Promise.any

2026-10-13 19:12:53 -05:00

record-width.ts

Retire the "DOM" nickname in comments, internal docs, and message prose: the checked-dynamic tree / dyn values

2026-07-24 11:14:58 -05:00

regex.ts

Expand static support for common Effect 4 patterns (#600)

2026-10-01 17:36:29 -05:00

retained-generic-rest-order.ts

Compile collection metadata and heterogeneous JavaScript tables natively

2026-09-28 22:20:24 -05:00

retired-engine-760-any-arithmetic.ts

Make scriptc compilation native-only

2026-10-12 12:25:30 -05:00

retired-engine-761-any-objects.ts

Make scriptc compilation native-only

2026-10-12 12:25:30 -05:00

retired-engine-763-any-flow.ts

Make scriptc compilation native-only

2026-10-12 12:25:30 -05:00

retired-engine-968-jsval-lift.ts

Make scriptc compilation native-only

2026-10-12 12:25:30 -05:00

retired-engine-1112-number-methods.ts

Make scriptc compilation native-only

2026-10-12 12:25:30 -05:00

retired-engine-1123-any-conditional-spread.ts

Make scriptc compilation native-only

2026-10-12 12:25:30 -05:00

retired-engine-1587-any-field-unassigned.ts

Make scriptc compilation native-only

2026-10-12 12:25:30 -05:00

retired-engine-2083-destructuring-island-decl.ts

Make scriptc compilation native-only

2026-10-12 12:25:30 -05:00

retired-engine-2084-destructuring-primitive-sources.ts

Make scriptc compilation native-only

2026-10-12 12:25:30 -05:00

retired-engine-2086-destructuring-island-globals.ts

Make scriptc compilation native-only

2026-10-12 12:25:30 -05:00

retired-engine-2103-optional-tuple-elements.ts

Make scriptc compilation native-only

2026-10-12 12:25:30 -05:00

retired-engine-2104-computed-key-destructuring.ts

Make scriptc compilation native-only

2026-10-12 12:25:30 -05:00

retired-engine-2251-tagged-templates-dyn.ts

Make scriptc compilation native-only

2026-10-12 12:25:30 -05:00

retired-engine-2513-dyn-evolving-array-derived.ts

Make scriptc compilation native-only

2026-10-12 12:25:30 -05:00

retired-engine-2667-array-to-sorted-any.ts

Make scriptc compilation native-only

2026-10-12 12:25:30 -05:00

retired-engine-2790-array-missing-tagged-substitutions.ts

Make scriptc compilation native-only

2026-10-12 12:25:30 -05:00

runtime-optional-capture-chain.ts

Respect runtime optional values and initialization order in more places (#775)

2026-10-09 00:23:28 -05:00

runtime-optional-refined-union.ts

Read holes in for-of loops and missing-element shorthand properties as undefined

2026-10-09 22:05:36 -05:00

self-returning-function.ts

init

2026-07-22 18:08:04 -05:00

sets.ts

Expand native collection keys and construction

2026-10-05 09:32:14 -05:00

spread-fences.ts

Add static fixed-tuple call spreads (#351)

2026-09-19 00:00:26 -05:00

spread-runtime-optional.ts

Track optional values precisely through callbacks, captures and pops (#784)

2026-10-09 10:33:07 -05:00

statements.ts

init

2026-07-22 18:08:04 -05:00

static-blocks.ts

The #private-members chain: fields, methods, accessors, generators

2026-07-23 02:42:10 -05:00

stdlib-fence.ts

Implement Promise.allSettled and Promise.any

2026-10-13 19:12:53 -05:00

stdlib.ts

Compile three.js math modules with LLVM

2026-09-29 20:58:04 -05:00

text-codec-value.ts

Expand static support for common Effect 4 patterns (#600)

2026-10-01 17:36:29 -05:00

text-decoder-label.ts

feat: support static non-UTF-8 TextDecoder labels (#111)

2026-08-09 23:15:51 -05:00

top-level-await-implicit-module-nested-require.js

fix(compiler): support implicit top-level await modules (#94)

2026-08-08 11:35:01 -05:00

tuples.ts

feat(compiler): make lowering contexts natively compilable

2026-09-28 19:48:46 -05:00

unassigned-fields.ts

Deferred-init fields: stream!-style classes lower with typed extraction reads

2026-07-23 00:40:54 -05:00

union-clone-override-width.ts

feat(compiler): lower the complete frontend statically

2026-09-28 23:49:13 -05:00

unions.ts

Implement sparse native arrays and missing-value parity (#297)

2026-09-12 22:39:07 -05:00

unrelated-class-assertion.ts

Respect runtime optional values and initialization order in more places (#775)

2026-10-09 00:23:28 -05:00

url-mutation-object-plus.ts

Add Node 24 URL mutation support (#654)

2026-10-04 01:57:10 -05:00

url-mutation-operator.ts

Add Node 24 URL mutation support (#654)

2026-10-04 01:57:10 -05:00

url-mutation-runtime-key.ts

Add Node 24 URL mutation support (#654)

2026-10-04 01:57:10 -05:00

utility-types.ts

Support Date instance lowering (#101)

2026-08-08 23:17:58 -05:00