The semantic member-mutation collector revisits the same nodes while it closes
alias chains, and each visit re-derived results that cannot change within the
phase:
- resolveSemanticBindingState re-walked the scope chain for the same identifier
node. Definition collection completes before this phase, and addBinding is
reachable only from it, so a scope's bindings no longer change.
- directInitializerPosition, directMutationPosition and
referenceInitializerPosition are pure functions of a node and the analysis
parent map, but were recomputed for every mutation and initializer.
- markValue re-encoded the same capture tuple with JSON.stringify and built a
fresh long key for every Set/Map lookup, so each lookup re-hashed the whole
key. The capture key is now cached per binding, origin and owner, and the
lifetime key is derived from it.
On pdfjs-dist 5.3.93 wasm/openjpeg_nowasm_fallback.js (462316 bytes, sha256
53c228428a8861035a34738966af263fc9d4cee6df25a0ad942af947469a0bd9) the semantic
phase takes 177.8 s instead of 272.9 s in-process, with a byte-identical
semantic IR. With --max-heap-mb 3072 and the default heap the base revision
exhausts the worker; with the default 300 s per-source deadline raised, the
completed CLI run takes 240.6 s instead of 396.7 s and its output is identical
apart from volatile identifiers.
Refs #2498
Co-authored-by: gongfpp <22683417+gongfpp@users.noreply.github.com>
* fix(javascript): resolve module-relative Worker URL references
* fix(javascript): validate Worker URL paths independently of suffixes
* fix(javascript): preserve directory-form Worker URL paths
* fix(javascript): unwrap type assertions in Worker URL references
* fix(javascript): validate Worker bindings before URL resolution
* fix(javascript): leave drive-letter Worker URLs unresolved
Use WHATWG file URL parsing before pathname decoding to detect drive-letter
forms whose resource identity depends on the unmodeled source URL scheme.
Preserve encoded and ordinary relative pipe paths, and cover false matches
through the compiled CLI and resolver boundary tests.
* fix(javascript): preserve Worker URL identity boundaries
Recognize known Worker bindings before filtering callee spellings so ESM
aliases and transparent constructor wrappers reach URL analysis. Keep
root-relative module URLs unknown without a modeled runtime base root.
Index direct source-local global writes with the shared mutation collector
before promoting URL and browser Worker constructors. Preserve lexical
shadowing and unrelated property identities, and exercise all three review
regressions through the compiled CLI.
* fix(javascript): invalidate mutated import.meta URL bases
Track source-local import.meta writes alongside ambient global writes so
Worker URL expressions keep an unknown base after a possible URL mutation.
Tag the identity roots independently and cover direct mutation and unrelated
property cases through the compiled CLI.
* fix(javascript): close Worker URL identity and pathname gaps
Resolve ambient object identities before appending written properties, and
retain possible source-local aliases across rebinding. Reuse intrinsic
invocation handling for aliased and bound mutators, array spreads, and
transparent TypeScript wrappers while preserving Electron write semantics.
Keep malformed-percent nested Worker URL pathnames unknown because the base
scheme is unavailable and Node rejects these file URLs. Preserve tolerant
HTML URL handling, valid escapes, and query/fragment evidence.
Cover the new cases and unrelated writes through the compiled CLI with
existing-file decoys. All 591 targeted tests and npm run check pass.
* fix(javascript): bound alias expansion and classify Worker paths
Join ambient identity projections instead of enumerating alias histories.
Memoize repeated value and provenance queries while preserving capture,
depth, and cycle-dependent uncertainty.
Keep Node Worker string arguments unresolved without filesystem or cwd
context, and admit qualified global URL constructors through identity checks.
Validate three 40-level alias branch shapes through the compiled CLI,
925 source tests, 25 CLI/boundary tests, and the full npm run check gate.
* fix(server): preserve partial Evidence target-content provenance
Pass the exact named contract returnsTargetContent flag through the shared partial-Evidence error delivery path introduced by the shortlist integration.
Exercise successful and failed recording through in-memory MCP for marked and unmarked contracts, preserving source payload and original failures. Observe both shared-handler emission and wire delivery so the SDK error-marker fallback cannot hide omissions. Suppressing the flag fails exactly the two marked cases.
Validation: check:fast, check, 736 semantic tests, 29 MCP transport/error tests and six compiled static Worker CLI journeys pass. No live target/provider execution or hosted publication.
* fix(javascript): structurally share semantic dependency proofs
---------
Co-authored-by: baron <richstyles@gmail.com>
* fix(javascript): prove Electron module namespace conversion
* refactor(javascript): share AST child field metadata
Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>
Co-authored-by: Kaoru0822 <208281322+kaoru0822-kitauji@users.noreply.github.com>
* fix(javascript): retain destructured intrinsic writes
Share one pattern-target walker across lexical definitions, member mutation
tracking and Electron identity writes. Keep overwritten globals unresolved
without treating property keys or shadowed locals as global replacements.
Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>
Co-authored-by: Kaoru0822 <208281322+kaoru0822-kitauji@users.noreply.github.com>
* fix(javascript): preserve intrinsic projections and fresh target identity
Resolve known mutators through static binding projections and prove stable
identifier chains to fresh literals before widening unknown mutation targets.
Keep reassigned, uninitialized and member-projected targets conservative.
Cover both review regressions through source tests and inert CLI/MCP fixtures.
Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>
Co-authored-by: Kaoru0822 <208281322+kaoru0822-kitauji@users.noreply.github.com>
* fix(javascript): retain fresh function and class target identity
Recognize stable local function, undecorated class and RegExp targets before
widening intrinsic mutations. Keep decorated classes opaque because their
binding value can be replaced, and preserve class-initialization writes.
Cover fresh targets and replacement decorators in inert CLI/MCP fixtures.
Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>
Co-authored-by: Kaoru0822 <208281322+kaoru0822-kitauji@users.noreply.github.com>
* fix(javascript): preserve intrinsic alias capture timing
Validate each alias read after initialization and retain the original function capture across copies. Share declaration initializer facts with RPC and Electron analysis, including class declarations used for fresh-target identity. Accept single-statement control blocks while keeping lexical roles and added operations checked. Cover the capture regressions through inert source and public CLI/MCP workflows.
* fix(javascript): respect hoisted fresh function declarations
Function declarations provide fresh targets before their textual position. Retain initialization-order checks for variable and class values, including aliases. Cover the reviewed regression with source controls and the public CLI/MCP fixture.
* fix(javascript): preserve proven interop result projections
* fix(javascript): retain stable declarations and bound intrinsic writes
Keep repeated variable declarations with one unconditional initializer while
rejecting assignments, conditional initialization and multiple values.
Normalize known intrinsic calls, aliases and bound argument prefixes at the
semantic owner, retaining opaque targets without tainting unused bindings or
fresh local objects. Cover both regressions through source and CLI/MCP tests.
Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>
Co-authored-by: Kaoru0822 <208281322+kaoru0822-kitauji@users.noreply.github.com>
* fix(javascript): retain bound intrinsic mutation effects
* fix(javascript): preserve bound receivers for intrinsic invocation
* fix(javascript): prove generic binding and invocation effects
* fix(javascript): retain Reflect set receiver effects
---------
Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>
Co-authored-by: Kaoru0822 <208281322+kaoru0822-kitauji@users.noreply.github.com>
Co-authored-by: morluto <76467478+morluto@users.noreply.github.com>
Review follow-up. Only a capture already on the alias chain can repeat a prefix, so a first visit no longer slices and serializes every suffix of its path.
Detect unprunable repeated self-alias prefixes at the JavaScript mutation owner, record conservative escape effects, and reuse settled repeated-prefix checks. Preserve finite-path precision and deeper-write uncertainty.
Refs #1665.
Co-authored-by: Martin Klein <36695017+flitzrrr@users.noreply.github.com>
Resolve this, private fields and super reads through receiver-aware references. Separate instance fields from prototype descriptors, preserve alternative inheritance branches and allow finite repeated getter paths.
Add domain precision regressions and compiled CLI/MCP coverage for the four reported getter shapes.
Fixes#1665
Replacing or deleting a class getter property does not mutate the object it would return. Apply the existing object-accessor write boundary to instance and static getters.
Validation: source mutation regressions and compiled CLI/stdio MCP acceptance preserve literal 1 for all four assignment/deletion cases; check:fast passes.
Follow object, instance, and static getter results when invalidating shared values. Respect descriptor replacement, known spread overrides, inheritance alternatives, and unresolved computed keys. Preserve conservative uncertainty for fresh getter results and verify shared mutations through CLI and MCP.
Fixes#1494
After #1542 the longest event-loop blocks on large bundles were single AST
traversals inside one analyzer: member-mutation collection with its
fixpoint, static source analysis, and function fingerprints, each about
one second on Obsidian's 3.7 MB app.js.
- traverseJavaScriptAstSteps yields every 1,024 visited nodes with the
same visit order; traverseJavaScriptAst drains it, so every existing
caller is unchanged.
- Member mutations, static analysis and fingerprints run as steps. The
member-mutation fixpoint yields every 64 references, and fingerprints
yield between callables.
- The now-unused synchronous member-mutation and fingerprint wrappers are
removed.
Graph IDs and complete result digests match main on three inputs,
including obsidian.asar. Over two runs there, the longest block falls
from about 920 ms to 740 ms, the second from 860 to 595 ms, and blocks
over 250 ms from 27 to 18, with total time within 1.5%.
Refs #1462
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Since #1471, escaping an object also escapes every method's results. Each
call through the object escapes it as the receiver, and each escape
re-expanded all of its methods. N methods returning one shared object,
each called once, did N times N work: 2,000 calls took 3.0 s of semantic
analysis and 4,000 took 12 s.
Expansion below references depends only on syntax, so escapes now reuse
it per expression and path. Identifiers that resolve to the same binding
and path collapse to one, because the escape walk treats them alike.
Every escape site is still recorded. The semantic IR is byte-identical
on 50 sources, and the issue's case takes 253 ms at 2,000 and 638 ms at
4,000.
Closes#1495
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Repeated property writes to one object made member-mutation collection
cubic. Each write evaluated its target binding to rule out a primitive,
and every evaluation folded all earlier mutation paths, copying every
slot once per path. 2,000 writes to one object took 27 s and 4,000 took
203 s.
- A recorded write always leaves a non-primitive binding value, so only
the first write to a binding needs the primitive check.
- Apply mutation paths per slot in one pass with the same ordering
semantics instead of one full slot copy per path.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: N0zoM1z0 <161784452+N0zoM1z0@users.noreply.github.com>
Fixes#1401. Refs #1065. Preserve exact member facts and equal-depth write effects while bounding the observed reassignment-loop expansion.
Validated with the JavaScript semantic/application suite, focused alias regressions, full static checks, real compiled CLI and SDK MCP Notion workflows, and all 20 checks on the final PR head.
Co-Authored-By: Marnix Pluim <286664873+marnixpluim@users.noreply.github.com>
Co-Authored-By: N0zoM1z0 <161784452+N0zoM1z0@users.noreply.github.com>
Co-Authored-By: Claude <noreply@anthropic.com>
* fix(javascript): preserve uncertainty after references escape to calls
* fix(javascript): track iterator root escapes and preserve static captures
* fix(javascript): scope comparison unknowns to their evidence
* fix(javascript): track parameter origins at function body entry
---------
Co-authored-by: morluto <76467478+morluto@users.noreply.github.com>
Use one explicit object/array slot model and JSON-pointer property identity across mutation analysis, return projection, and semantic graphs. Require observed presence for discriminants and resolve writes only through retained object or array receivers.
BREAKING CHANGE: projected return fields require explicit presence and semantic object operations carry full property paths.
gongfpp
To3akaRin
Yann Roberto
David
Ysopwnable
Martin Klein
morluto
Kaoru0822
Kaoru0822
Zeynel
Marnix Pluim
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