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feat(php): resolve instance-method calls edges from typed receivers (#1) - #17

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filipechagas merged 14 commits into
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feat/php-member-calls-1682
Aug 5, 2026
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feat(php): resolve instance-method calls edges from typed receivers (#1)#17
filipechagas merged 14 commits into
v8from
feat/php-member-calls-1682

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Closes #1.

Brings PHP instance-method calls-edge resolution into the fork's v8 so it can be installed and used ahead of the upstream merge.

Full description, evidence, and known limits: upstream PR Graphify-Labs#2492 (same branch, same head db7c8f8).

Summary of the branch: 13 commits implementing fork issues #2#7 plus review-phase fixes #8, #11#14; version 0.9.34; suite 4024 passed / 36 skipped (base: 3933/36); live repro from Graphify-Labs#1682 produces the expected INFERRED/EXTRACTED edges with the static control unchanged. Open documented residuals: #9, #10, #15, #16.

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filipechagas and others added 14 commits August 5, 2026 14:30
…ype (#2)

PHP member calls were resolved by bare method name only, so a Laravel-style
`$this->service->method()` either linked nothing or bound to whichever
same-named method happened to be in the file. Cut the full path for the
narrowest receiver family — `this` and `this.<prop>`.

Extraction (engine.py):
- capture the receiver of member/nullsafe member calls as `this` or
  `this.<prop>`; anything else stays uncaptured (behavior unchanged)
- build a per-class table of concrete property types from typed properties and
  constructor-promoted params; unions, intersections, primitives and
  self/static/parent are refused, `?Foo` unwraps to Foo
- stamp `lang: "php"` and the resolved `receiver_type` on raw calls
- defer the in-file bare-name match only when a receiver type was actually
  stamped, so plain `$this->m()` and untyped receivers keep today's edges

Resolution (extract.py):
- `nullsafe_member_call_expression` joins the PHP call types
- new `_resolve_php_member_calls`, a case-insensitive clone of the Java pass:
  exactly one type definition in the corpus and exactly one matching method, or
  no edge at all — never a bare-name fallback
- registered as the `php_member_calls` language resolver

Edges are INFERRED (0.8) for typed receivers and EXTRACTED (1.0) for `this`.

Refs #2

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
An inline instantiation names its class outright, so the receiver needs no
type table — but the lookup that finds the class node still goes by SHORT
name and ignores the namespace. Treating every inline new as exact would
label a mis-bound short name EXTRACTED, so the namespace is checked as
independent evidence.

Extraction (engine.py):
- capture `(new X())->m()` / `(new \NS\X())->m()` as the `(new)` receiver key,
  keeping the short name for lookup and the written text for corroboration
- `new self()` / `new static()` / `new parent()` are refused by the same
  non-concrete type-name set as declared types
- anonymous classes carry no name node at all (probe-verified on
  tree-sitter-php 0.24.1), so the receiver stays uncaptured and the call is
  inert; a bare `new X();` statement is still not a call node

Resolution (extract.py):
- new `_php_qualified_corroborates`: every segment of the written name must
  line up, case-insensitively, with the tail of the resolved node's path
  (PSR-4). A bare name corroborates nothing; a mismatching namespace
  downgrades to INFERRED rather than refusing, since the class name itself
  still resolved unambiguously

Refs #3

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
…#4)

`$svc = new Service(); $svc->method()` and `function handle(Service $svc)` now
carry a receiver type, so the call binds to the declared class instead of the
first same-named method in the corpus.

Raw calls retain no lexical scope, which makes shadowing the hard part: a call
written inside a closure is attributed to the enclosing method, so a closure
parameter reusing an outer name is indistinguishable from the outer binding.
Rather than guess, `_php_method_receiver_types` POISONS any name whose binding
is not provably single-typed and drops it from the table:

- rebind to anything but a `new`, or two conflicting `new` types
- augmented assignment (`$svc ??= new Other()`)
- closure and arrow-function parameters shadowing the name
- foreach targets, including `$k => &$v` and destructured elements
- list destructuring, `[$a, [$b]] = …` and `list(…) = …` alike

Anonymous-class bodies are skipped outright — a `new` inside one belongs to a
different scope and must not type the enclosing method's variables. Variadic
params are left unbound (`T ...$xs` is an array of T, not a T), and `self` /
`static` in type position reuse the non-concrete name set.

The bare `$var->m()` receiver key also required carving PHP out of the shared
capitalized-receiver defer rule: PHP receivers are never bare class names, so
that rule could only have stripped in-file edges off an untypable `$Svc->m()`.

Chained receivers stay inert — `$a->b()->c()` resolves the inner call and
leaves the outer one alone.

Refs #4

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
… TypeScript member-call resolvers (#6)

The Swift, Python and TypeScript resolvers walked every raw call in the corpus
and claimed any entry with `is_member_call`, regardless of which language
produced it. Since #2 stamped `lang: "php"` and a truthy receiver on PHP raw
calls, a mixed PHP/Python corpus put foreign receiver data in front of three
resolvers that had no way to tell it apart from their own.

Add a `lang` tag skip at the top of each of the three loops. The extractor
stamps `lang` for cpp, csharp, java and php (engine.py) and objc stamps its own
(extractors/objc.py); Swift, Python and TypeScript raw calls carry no tag, so
"tagged" is exactly "not mine". This also shuts the pre-existing path for
objc-tagged raw calls, whose receivers ARE capitalized and so could reach the
Python resolver's class arm.

The Ruby resolver is deliberately untouched: ruby_resolution.py:47-48 already
filters raw calls to `.rb`/`.rake` source files, so a `.php` entry cannot reach
it.

Tests: a mixed-corpus `extract()` test (.php + .py in one call) asserting a PHP
receiver mints no edge into an identically named Python method, plus a positive
control proving the skip did not simply disable the Python resolver.

Scope note: with PHP's current receiver forms this guard is defensive rather
than corrective. `engine.py:4410-4426` only ever emits `this` or `this.<prop>`,
neither of which is capitalized, so no PHP raw call reaches the Python class
arm today and both new tests pass with or without this change. The reachable
cross-language leak found while verifying #6 has a different root cause -- the
corpus-global, language-unscoped `type_def_nids` index inside
_resolve_php_member_calls (extract.py:3068-3075) and its objc twin
(extract.py:3211) -- and is left for a follow-up rather than widened into #2's
resolver here.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
…llision (#5)

PHP `interface_declaration` is not in `_PHP_CONFIG.class_types`, so an
interface mints no definition node. That looked safe — an interface-typed
receiver simply found nothing — but it is not: Laravel's Contracts convention
routinely puts `App\Contracts\Notifier` beside an unrelated
`App\Support\Notifier` class, and then exactly ONE definition exists under
that short name. The single-definition guard cannot see a problem, so the
receiver silently bound to a total stranger.

Measured before the fix: all three receiver entry points — typed property,
typed parameter (#4) and inline new (#3) — minted the wrong edge in that
corpus.

Pre-scan interface names per file (the C# `_csharp_pre_scan_interfaces`
pattern), thread them out on the extractor result, and refuse in the resolver
any receiver type whose name matches one, case-insensitively. The check sits
where the receiver type is first read, so every entry point is covered by
construction. Implementations are never guessed, and the refusal is
name-scoped: a class-typed receiver still resolves with an interface of
another name in the corpus.

Refs #5

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
…ardening (#6)

* feat/php-member-calls-1682-t6:
  fix(extract): skip language-tagged raw calls in the Swift, Python and TypeScript member-call resolvers (#6)
`lang`-tagging (#6) keeps one language's raw calls out of another language's
resolver, but the DEFINITION index each resolver builds was assembled from
every type-like node in the corpus. A PHP receiver type name was therefore
matched against classes written in any language, and that cut both ways:

- a Python `class Lead` could be bound as the PHP receiver's type, minting a
  cross-language INFERRED edge from PHP into Python
- worse, a Python class merely SHARING the name pushed the single-definition
  guard to two candidates, so the correct PHP-to-PHP edge was silently
  suppressed — any polyglot repo with a colliding class name lost PHP
  member-call resolution entirely

Scope both indexes by the resolver's own registered source suffixes. The
suffix tuples now have one definition each and feed both the registration and
the index, so the two cannot drift apart.

`_resolve_objc_member_calls` carries the identical defect (pre-existing, not
introduced by the PHP work) and gets the same fix here. Its `.h` dual-routing
is unaffected: raw calls are still claimed by the extractor-stamped `lang`,
and `.h` belongs in the ObjC definition scope because an @interface lives in
one.

Refs #8

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
#12)

`enum_declaration` and `trait_declaration` are absent from
`_PHP_CONFIG.class_types` just like `interface_declaration`, so they mint no
definition node — and the #5 pre-scan only collected interfaces. An enum-typed
receiver was therefore invisible to BOTH the resolver and the refusal set, so
an unrelated class merely sharing its short name became the single visible
definition and sailed through the god-node guard: `App\Enums\Status` (enum)
beside `App\Legacy\Status` (class) bound `$this->status->label()` to the
stranger at INFERRED 0.8. All four receiver entry points leaked, including the
FQN-written one, where the source names the enum unambiguously.

Generalize the pre-scan to every PHP declaration kind that mints no node —
interface, enum, trait — and refuse those receiver types. Refusal side only:
enums and traits still mint no definition nodes, so nothing else about
extraction changes. That leaves the recall gap named in #12 (an enum's own
methods are not resolvable call targets) deliberately open; minting nodes for
these declarations is a separate decision.

The resolver still reads the pre-#12 `php_interfaces` result key so an AST
cache entry written before this change keeps refusing interfaces.
…ements (#13)

#4's scope poisoning covered every way a local can be REASSIGNED, but not the
two statements that rebind a name to DIFFERENT STORAGE. `$svc = new Alpha();
global $svc;` leaves the name aliased to the global slot and `static $svc;`
rebinds it to the function-static slot (initially null), yet the table kept the
`Alpha` binding and minted an INFERRED 0.8 edge to a method the receiver can
never reach at runtime. Both idioms are native to the pre-PSR-4 codebases this
feature targets: `global $db;` and `static $conn;` memoization.

Poison every name a `global_declaration` or `function_static_declaration`
names, in the same unordered walk that already poisons foreach targets and
closure params. Name-targeted, not statement-targeted — `global $other;` leaves
`$svc` resolvable, which the tests pin. Multi-name forms carry one
`variable_name` per declared name and a static initializer is a constant
expression, so sweeping the statement names exactly the rebound variables
(AST shapes probed against tree-sitter-php 0.24.1).
#5 refuses an interface-typed receiver, but only on a full build. Interface
names reached the resolver through `per_file`, which aligns 1:1 with the files
dispatched THIS run, and the incremental widening path (Graphify-Labs#2406/Graphify-Labs#2437/Graphify-Labs#2438)
carried nodes and contains/method edges — no channel for names. So on a rebuild
where the interface's own file was unchanged and therefore not dispatched, the
refusal silently stopped applying and the lone same-short-named CLASS satisfied
the single-definition guard. Worse than a missing edge: a wrong one.

Measured before the fix, `graphify extract` twice on the Laravel Contracts
collision (an `App\Contracts\Notifier` interface, an unrelated
`App\Support\Notifier` class, a `private Notifier $notifier` receiver):

    FULL        -> notify calls: []
    INCREMENTAL -> notify calls: [(dispatcher_go, support_notifier_notify)]

Of the two directions recorded on the issue, this takes B (stamp a marker on a
node the incremental path already carries) over A (a third `extract()` context
parameter): A would still need somewhere to persist the names, so it buys a
wider public signature for the same node-marker plumbing. The host is the PHP
FILE node — an interface mints no node of its own, and no definition nodes
change — carrying `_php_interfaces` with the names listed explicitly, never
inferred from the `<Name>.php` label (that holds only under one-interface-
per-file PSR-4 convention). Like `_callable` (Graphify-Labs#2438) the marker is deliberately
not popped, so it persists into graph.json, and watch.py / cli.py hand it back
on the resolution-context nodes.

extract() turns those names back into the resolver's EXISTING single channel:
one synthetic `php_interfaces`-only `per_file` entry on the scratch list, so
`_resolve_php_member_calls` reads one union and full/incremental agree by
construction. The names are harvested from the RAW context-node list, not from
the merged `resolution_nodes`: a changed caller that does
`use App\Contracts\Notifier;` mints a sourceless import stub whose id IS the
interface file node's id, and the merge drops the colliding context node (fresh
wins) — measured, and it takes the marker with it exactly when the refusal is
needed.

Tests: four in test_php_member_calls.py drive the incremental path through the
public extract() seam with resolution context assembled the way watch.py builds
it from graph.json (field subset + markers, contains/method edges) — refusal,
short-name collision, case-insensitivity, plus a positive control that a
class-typed receiver still resolves. Three in test_watch.py go end-to-end
through `_rebuild_code(changed_paths=...)`: refusal held, marker persisted on
the interface file only, and a pre-marker graph neither crashes nor blocks the
next full rebuild from self-healing. The first three of each are red without
this change.

Suite: 3994 passed / 36 skipped, plus the pre-existing environment-specific
test_collect_files_skips_hidden failure (dotted worktree path).

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
…ace (#14)

`_php_qualified_corroborates` promoted a member call to EXTRACTED 1.0 whenever
the written class name matched the TAIL of the resolved node's file path. Its
docstring justified that with "PHP nodes carry no namespace" — but the
`namespace` declaration sits in the source and was simply never read, and PSR-4
is a convention, not an invariant. Two names were stamped at maximum confidence
while denoting a class that exists nowhere in the corpus:

  * `app/Services/Client.php` declaring `namespace App\Vendor;` made
    `(new \App\Services\Client())` corroborate `App\Vendor\Client` — a wrong
    TARGET at 1.0, not just an inflated score. PSR-0 leftovers, classmap
    autoloaders, moved files and generated code all produce this.
  * `\Services\Client` corroborated `App\Services\Client`, because a proper
    suffix of the real name still matched the path tail. A missing `use` plus a
    leading backslash is a common bug; it was being rewarded.

Pre-scan each PHP file's `namespace` declarations (both the statement and the
braced-block form) at extraction time, map every class it declares to its fully
qualified name, and thread that to the resolver keyed by defining file. When
the declaration is known the comparison is whole-name, so neither exploit
promotes. Only files that declare NO namespace fall back to the PSR-4 path
check — with nothing declared, the path is the only evidence there is. A
mismatch still downgrades rather than refusing, per #3's shipped policy, and a
bare `new Svc()` still stays INFERRED.
…s incremental rebuilds (#11)

* feat/php-member-calls-1682-t6:
  fix(php): keep the interface refusal across incremental rebuilds (#11)

# Conflicts:
#	graphify/extract.py
#	graphify/extractors/engine.py
#	tests/test_php_member_calls.py
…11, #12)

#11 gave the refusal a second channel for rebuilds: a PHP file stamps the names
it declares onto its own file node, that marker persists into graph.json, and
watch/`graphify extract` hand it back as resolution context, which extract()
folds into the resolver's single `per_file` channel. It carried INTERFACE names
only. #12 had meanwhile widened the refusal to enums and traits — on the full
build. So an unchanged `App\Enums\Status` file reached the resolver through
nothing at all on a rebuild, `App\Legacy\Status` became the one visible
definition, and #12's wrong edge came straight back on the incremental path.

Measured, `/tmp/rt6/probe_incr_enum.py` (context marker stripped to simulate the
interface-only channel): `FULL -> (no calls)`, `INCREMENTAL -> .go() -> label()`.

Extend the channel to all three declaration kinds. The marker is renamed
`_php_interfaces` -> `_php_non_class_types` since its contents no longer match
the old name, and every reader — extract()'s context harvester, watch.py's and
cli.py's marker tuples — still accepts the old spelling, so a graph.json written
before this keeps refusing the interfaces it names instead of losing the channel
outright. Same dual-read tolerance the per-file `php_interfaces` key already has.

Verified end to end: `graphify extract . --code-only` twice over an enum corpus
reports "2 files cached/unchanged, 1 re-extracted" with the marker persisted and
no wrong edge (`/tmp/rt6/probe_cli_enum.py`).

Tests: 5 through the extract() seam (enum property, enum typed param, trait,
plus a class-typed positive control and one pinning that the legacy
`_php_interfaces` spelling still refuses), 2 end-to-end through
`_rebuild_code(changed_paths=…)`. With the marker temporarily reduced to
interfaces, exactly the 3 refusal tests and the 2 watch tests go red.
#4/#5/#6/#8/#11/#12/#13/#14)

Ships the PHP receiver-typed member-call work as 0.9.34. The changelog entry
names what now resolves (typed properties and constructor-promoted params via
`$this->prop`, nullsafe receivers, typed params, `$var = new T()` locals, and
inline `(new T())->m()` as the one EXTRACTED form, gated on declared-namespace
corroboration) and, at equal length, what is deliberately refused — untyped,
union- and intersection-typed receivers, interface/enum/trait-typed receivers
including across incremental rebuilds, corpus-duplicate short names, methods the
receiver's class does not declare (so `__call` fabricates nothing), chained and
array-element receivers, locals rebound or rebound by `global`/`static`, closure
/arrow/foreach/destructuring shadowing, anonymous classes, and
`self`/`static`/`parent`.

Three behaviour deltas are called out because consumers weigh edges by
confidence: a same-file call through a TYPED receiver moves EXTRACTED -> INFERRED
0.8 (measured on the base commit vs head, `/tmp/probe7_changelog_claims.py`); a
qualified inline `new` is EXTRACTED while the same name written as a local stays
INFERRED; and the language-scoped receiver index is two fixes, not one — polyglot
corpora stop leaking cross-language edges AND regain PHP/ObjC edges a foreign
same-short-named class used to suppress. Recall gaps (traits, inherited methods,
enum methods as targets, typed params in top-level functions) and the
use-alias-outside-corpus false-positive risk are named, as are the three items
still open against this work.

The docs confidence section gains a note that the member-call resolvers are a
deterministic 0.8 INFERRED source distinct from the LLM rubric, plus the PHP
refusal policy.

The version bump rolls the version-namespaced AST cache. Verified end to end on
the live repro corpus: pre-feature code fills `cache/ast/v0.9.33/`; head code at
0.9.33 serves those stale entries and produces NO receiver-aware edges even with
all five files re-dispatched; at 0.9.34 the namespace misses, the corpus is
re-parsed, and all three expected edges appear —
`leadcontroller_index -> leadhunterservice_search` INFERRED 0.8,
`paymentcontroller_store -> mixedpaymentservice_resolve` EXTRACTED 1.0, and the
static control `paymentcontroller_store -> sucursalcontext` INFERRED 0.8
unchanged (`/tmp/probe7_bump_control.py`, `/tmp/probe7_cache_boundary.py`). The
bump does not by itself force a re-extraction — an unchanged stat index
short-circuits before the AST cache is consulted — so the changelog tells users
to run `graphify update .` or drop `manifest.json`.

The AST shapes the resolution reads are probed across every tree-sitter-php
version pyproject accepts (0.23.0 through 0.24.1, twelve releases): 80/80 shape
assertions hold on each, including the anonymous-class and `self`/`static` in
type position cases, so the floor stays at >=0.23
(`/tmp/probe7_php_grammar.py`, `/tmp/probe7_php_versions.sh`). The 85 PHP tests
also pass under 0.23.0, 0.23.5 and 0.23.11.

uv.lock carries the one line that has to change: uv 0.12.1 rewrites 106 marker
lines on a full `uv lock`, so the graphifyy version line is edited on its own.
`uv lock --check` passes afterwards, which it did not before (the lock had been
left at 0.9.31 across the 0.9.32 and 0.9.33 bumps).

Suite: 4024 passed, 36 skipped — unchanged from the pre-release baseline.
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