Changes in eqref.rs

7f7b39cb - EqRef from_i31 implementation (#11884)

Sun, 19 Oct 2025 04:42:07 +0000

EqRef from_i31 implementation (#11884)* feat(gc/eqref): from_i31 implementationCopy of AnyRef's from_i31, exact same thing.* test: case for EqRef's from_i31 implementation List of files: /wasmtime-44.0.1/crates/wasmtime/src/runtime/gc/enabled/eqref.rs

9826719a - GC: replace ManuallyRooted with OwnedRooted. (#11514)

Tue, 26 Aug 2025 18:54:25 +0000

GC: replace ManuallyRooted with OwnedRooted. (#11514)* GC: replace ManuallyRooted with OwnedRooted.This implements the ideas from #11445: it replaces `ManuallyRooted`,which requires an explicit unroot action with a mut borrow of the store(making it impossible to implement in a standard `Drop` impl), with`OwnedRooted`, which holds an `Arc` only to a small auxiliary memoryallocation (an `Arc<()>`) and uses this externalized "liveness flag" toallow for a `Store`-less drop. These liveness flags are scanned during a"trim" pass, which happens both when new owned roots are created, andjust before a GC.This should greatly increase safety for host-side users of GC: itprovides a way to have a handle whose ownership works like any otherRust value, alive until dropped. It is still not quite as efficient asLIFO-scoped handles (by analogy, for the same reason thatindividually-freed RAII types are not as efficient as arena allocation),so those remain for efficiency-minded users that have a clear picture ofreference lifetimes.At some later time we may wish to use `OwnedRooted` exclusively in ourpublic APIs rather than `Rooted`, and we may wish to rename `Rooted` to`ScopedRooted`, but I haven't done either of those things yet.I opted to *replace* `ManuallyRooted` rather than add a third kind ofroot, after discussion with fitzgen. One implication of this is that theC API's `anyref` and `externref` types are now 24 or 20 bytes ratherthan 16 (because of the `Arc` pointer), and correspondingly the Valunion grew to that size. I *believe* this is an acceptable tradeoff, butI'm happy to put `ManuallyRooted` back if not.Fixes #11445.* Review feedback.* Fix for riscv32imac: loosen asserts on struct size slightly to allow for different padding.* C API: use a `*const ()` to pass the liveness-flag Arc through C.* Add some additional documentation warning about unrooting in the C API.* Fix size-of test on 32-bit platforms.* New amortized algorithm for root trimming.* core::cmp, not std::cmp* Always set high-water mark, even if eager.* Make val size-assert tolerant of padding bytes in crates/c-api/src/val.rs too. List of files: /wasmtime-44.0.1/crates/wasmtime/src/runtime/gc/enabled/eqref.rs

c6dddeaf - Minimize lazy allocation of the GC store (#11411)

Mon, 11 Aug 2025 20:47:20 +0000

Minimize lazy allocation of the GC store (#11411)* Minimize lazy allocation of the GC storeThis commit is an effort to minimize the number of entrypoints whichmight lazily allocate a GC store. The is currently done through`StoreOpaque::gc_store_mut` but this method is very commonly usedmeaning that there are many many places to audit for lazily allocating aGC store. The reason that this needs an audit is that lazy allocationis an async operation right now that must be on a fiber and is somethingI'm looking to fix as part of #11262.This commit performs a few refactorings to achieve this:* `gc_store_mut` is renamed to `ensure_gc_store`. This is intended to be an `async` function in the future and clearly demarcates where lazy allocation of a GC store is occurring.* `require_gc_store{,_mut}` is now added which is a pure accessor of the GC store with no lazy allocation. Most locations previously using `gc_store_mut` are updated to use this instead.Documentation is added to store methods to clearly indicate which onesare allocating and which ones should only be called in a context whereallocation should already have happened.* Fix configured build* Relax GC store restrictions in more places* Review comments on documentation* Move `ensure_gc_store` calls during instantiationInstead update `needs_gc_heap` with the tables that are added to amodule and rely on instantiation to create the GC heap.* Shuffle around some code* Fix CI and review comments* Add in a few more i31 cases for externref List of files: /wasmtime-44.0.1/crates/wasmtime/src/runtime/gc/enabled/eqref.rs

838ed2d0 - Enable `allow_attributes_without_reason` (#11195)

Mon, 07 Jul 2025 21:52:03 +0000

Enable `allow_attributes_without_reason` (#11195)* Enable `allow_attributes_without_reason`This commit enables the `clippy::allow_attributes_without_reason` forthe `wasmtime` crate which previously forcibly allowed it. The reasonthis was allowed was that when the workspace was first migrated theWasmtime crate had too many instances that I was willing to fix. I'venow come back around and tried to fix everything.In short: ideally delete `#[allow]`, otherwise use `#[expect]`,otherwise use `#[allow]`.prtest:full* Adjust some directives* Fix some warnings* Fix stack switching size tests on unix* Don't have a conditional `Drop` impl* Force `testing_freelist` method to be usedToo lazy to write `#[cfg]`, but not too lazy to write a test. List of files: /wasmtime-44.0.1/crates/wasmtime/src/runtime/gc/enabled/eqref.rs

90ac295e - Update Wasmtime to the 2024 Rust Edition (#10806)

Mon, 19 May 2025 16:40:55 +0000

Update Wasmtime to the 2024 Rust Edition (#10806)* Update Wasmtime to the 2024 Rust EditionNow that our MSRV supports the 2024 edition it's possible to make thisswitch. This commit moves Wasmtime to the 2024 Edition to keepup-to-date with Rust idioms and access many of the edition featuresexclusive to the 2024 edition.prtest:full* Reformat with the 2024 edition List of files: /wasmtime-44.0.1/crates/wasmtime/src/runtime/gc/enabled/eqref.rs

c16414fb - Introduce the `wasmtime::EqRef` type (#9285)

Thu, 19 Sep 2024 19:48:54 +0000

Introduce the `wasmtime::EqRef` type (#9285)* Introduce the `wasmtime::EqRef` typeThis commit introduces the `wasmtime::EqRef` type, which corresponds to Wasm's`(ref eq)` type, and statically represents Wasm references that can be testedfor equality.* fix no-gc builds List of files: /wasmtime-44.0.1/crates/wasmtime/src/runtime/gc/enabled/eqref.rs