size: per-module registry for callable-export attach decoration (stream/fs/cp/wasi/vm finally strip; hello −133 KB)

changelog.d/6931-callable-attach-registry.md

@@ -0,0 +1 @@
+**Binary size:** the per-module "attach" ladder inside `bound_native_callable_export_value` (stream prototype towers, sqlite/tty/tls/wasi/assert/crypto constructor decoration, EventEmitter statics, `util.promisify.custom`, `AsyncLocalStorage.bind`, …) is now a per-module `NM_ATTACH_REGISTRY`, registered by each module's existing `js_nm_install_<module>()`. A binary links exactly the attach machinery of the modules it imports: on a `console.log` hello world this finally dead-strips the stream pipeline tower, fs residue (161→27 KB), child_process (→0.9 KB), wasi (→0) and node:vm (→6.5 KB) — −133 KB on this branch so far. Verified byte-identical to Node: stream iteration, `promisify(stream.pipeline)` custom hook, `events.once`/EventEmitter statics, `AsyncLocalStorage.bind`, plus a 12-test gap sweep; full runtime suite green serially (the parallel flakes are #6926/known).

crates/perry-runtime/src/object/native_module.rs

@@ -13,7 +13,7 @@ use std::ptr::null_mut;
 use std::sync::atomic::{AtomicPtr, Ordering};
 
 mod callable_export_check;
-mod callable_exports;
+pub(crate) mod callable_exports;
 mod constants;
 mod module_keys;
 mod namespace_builders;