Stdlib: extract() and compact() JIT/AOT parity (#275 follow-up)

[PurHur]

Problem

#275 closed with VM-only extract() / compact() in ext/standard/extract_.php, compact_.php, VmScope.php. docs/capabilities.md shows:

Function	VM	JIT	AOT
extract	yes	no	no
compact	yes	no	no

JIT stubs throw LogicException('not implemented for JIT in this compiler build'). Template-heavy apps may use explicit locals today (#471 layout pattern), but frameworks expect extract($data) before include.

Goal

JIT + AOT fast paths (or VM callout) for:

• extract(array $vars, int $flags = EXTR_SKIP) — string keys only, EXTR_SKIP minimum
• compact('a', 'b', …) — literal string name list (existing VM restriction)

Implementation hints

Area	Files	Notes
JIT builtins	lib/JIT/Builtin/ new handlers or extend VmScope callout	Import keys into active LLVM scope
AOT	runtime helper shared with VM	Symbol php_compiler_extract
Tests	test/compliance/cases/extract_template.phpt	extract + echo variable
Matrix	script/capability-matrix.php --check	Flip JIT/AOT columns to yes

Acceptance criteria

docker run --rm -v "$(pwd):/compiler" -w /compiler php-compiler:22.04-dev \
  php bin/jit.php -r '$t=["name"=>"Dev"]; extract($t); echo $name;'

Prints Dev without LogicException.

Verification (local / Docker only)

./script/ci-local.sh --filter extract

Dependencies

• Stdlib: extract() and compact() for PHP template includes #275 ✅ VM implementation
• Web: include inherits caller scope for template partials (#471) #474 / Language: include/require in JIT and AOT (multi-file applications) #54 includes in JIT/AOT
• Optional for Reference app: examples/003-MiniWebApp (router, templates, forms) #67 (layout uses locals, not extract)

Related

• 🗺️ ROADMAP: Compile a small PHP web application (living document) #78 ROADMAP Phase 2 Stdlib
• ext/standard/VmScope.php