merge: cascade 8.4 into master - #184
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…pe(), ClassSpecializer::evict() Dependant packages were reaching behind the API line for operations that had no named entry point: probing Core::$executor to ask "is the engine booted", deleting class-table buckets through the @internal HashTable::delete(), and pairing Core::sizeof(Core::type(...)) so a raw FFI\CType crossed the boundary. - ClassSpecializer::evict(): the destroying counterpart of specialize(). Removes the class-table bucket so destroy_zend_class() dismantles the entry now, while op_array-refcounted bodies shared with the source stay alive. Refuses internal and shared-memory (immutable/preloaded) entries. The explicit-teardown test now exercises it. - Core::sizeOfType(): the named form of the sizeof(type(...)) pair; Core::type() is @internal so no raw CType crosses the API line anymore. - Core::isUsable(): non-throwing projection of the boot guard, for consumers and test bootstraps deciding whether engine paths can run here at all - hand-rolled ffi.enable checks get the supported 'preload' mode wrong. - AGENTS.md: a 'Consuming z-engine from another package' section drawing the line those leaks crossed because it was never written down. No ReflectionClass::evict() mirror on purpose: an instance method destroying the entry its own wrapper points at invites use-after-free on $this. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_019TGQqR7ByjHrVSYKVHPrkJ
Closes #21, open since 2019 on one blocker recorded in its own comments: 'the composer autoloader calls Core::init() before preload initialization'. An unconditional boot binds the definitions with FFI::cdef(), which lasts for the preload request only, and leaves an engine behind that turns the script's own Core::preload() into a no-op - the server starts and every request after it fails. bootstrap.php (autoload.files) therefore recognises the preload stage and serves it with Core::preload(), whose FFI::load() publishes the definitions under FFI_SCOPE for the life of the server; everything else gets Core::init(). The stage is identified by the one fact that distinguishes it - during preloading the script named by opcache.preload is the first file the process included. Verified end to end on a matching PHP line: FFI::scope('ZEngine') resolves in the request that follows, and does not when the preload script skips the boot. A host that cannot run the engine (no ext-ffi, ffi.enable=0, wrong PHP minor, no definitions for the platform) is left uninitialized in silence - throwing from an autoloaded file would break static analysis, FFI-disabled test jobs and composer-time tooling at require. Nothing is lost: Core::init() is idempotent, so code that needs the engine calls it and gets the same explanation this file swallowed. ZENGINE_AUTOBOOT=0 skips the boot entirely. Core::preload() is now idempotent too, so the explicit call an existing opcache.preload script makes after requiring the autoloader stays harmless. Review feedback on the API additions: - Core::isUsable() dropped - init() and isInitialized() are enough - evict() reads the class through ReflectionClass::isUserDefined()/ isImmutable()/isPreloaded() instead of ce_flags off the raw entry; the new isPreloaded() sits beside isImmutable() - the consumer section folded into 'Public APIs never leak CData', keeping the @internal / FFI-CData part Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_019TGQqR7ByjHrVSYKVHPrkJ
PHP does not support opcache preloading on Windows at all, so both preload cases failed there: the engine reported 'Preloading is not supported on Windows', and the scratch script path went through a short name (RUNNER~1) whose tilde broke -d ini parsing before that. Guarded with the same skip the repository already uses for opcache.preload (issue #119), on the two cases that need it rather than the whole class - the opt-out and silent-failure cases are plain autoload behaviour and keep running everywhere. The --fail-on-skipped opcache gate runs on Linux and macOS, where preloading exists and neither case skips. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_019TGQqR7ByjHrVSYKVHPrkJ
…audit-1t6xy7 feat: boot from Composer's autoloader (closes #21), plus ClassSpecializer::evict() and Core::sizeOfType()
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Automated cascade merge of
8.4intomaster(branch flow defined in.github/branch-flow.json).Resolve conflicts in favour of the newer engine structures where they touch
include/- regenerate headers on the target branch instead of merging them textually. See AGENTS.md.