en Copyright 2015 Java http://172.16.0.5:8080/history/wasmtime-44.0.1/examples/externref.cc#b34556f9 C++ API: Make `wasmtime::Store::gc` return a `Result` (#12439)* C++ API: Make `Store::gc()` return a `Result`* Handle GC errors in C++ example programs* clang format List of files: /wasmtime-44.0.1/examples/externref.cc Mon, 26 Jan 2026 21:45:00 +0000 Nick Fitzgerald <fitzgen@gmail.com> http://172.16.0.5:8080/history/wasmtime-44.0.1/examples/externref.cc#adff9d9d Fix externref/anyref ownership in C/C++ API (#11799)* Fix externref/anyref ownership in C/C++ APIThis commit is a follow-up to #11514 which was discovered throughfailing tests in the wasmtime-py repository when updating to Wasmtime37.0.0. Effectively a combination of bugs in the Rust API meant that itwasn't possible to use `externref` or `anyref` bindings correctly. TheRust changes in this commit are:* `wasmtime_val_unroot` correctly drops the value now as opposed to effectively being a noop from before (typo of using `as_externref` vs `from_externref`).* `wasmtime_{anyref,externref,val}_t` now have a `Drop` implementation in Rust to correctly drop them if a value in Rust is dropped. This is required to correctly manage memory in the `wasmtime_func_{call,new}` implementations, for example.* `wasmtime_{anyref,externref,val}_clone` no longer have an unnecessary context parameter.* `wasmtime_{anyref,externref,val}_unroot` no longer have an unnecessary context parameter.Changes in the C/C++ APIs are:* `Result::{ok,err}_ref` APIs were added in addition to the preexisting rvalue accessors.* Loading/storing typed arguments now has an overload for `const T&` and `T&&` which behaves differently. Notably transferring ownership for `T&&` and not for `const T&`. This means that passing parameters when calling a wasm function uses `const T&`, but passing results from a host import uses `T&&`.* `TypedFunc::call` now uses `const Params&` instead of `Params` to explicitly specify it doesn't modify the parameters and forces using the `const T&` store method.* `Store::gc` is now a convenience method for `store.context().gc()`* `ExternRef`, `AnyRef`, and `Val` now have ownership semantics and destructors. This matches the spirit of #11514 for Rust but models it in C++ as well. This required filling out move/copy constructors/assignments.* The explicit `ExternRef` now takes `std::any` instead of `T`.* Minor issues related to ownership are fixed in `Val` bindings.Valgrind was used to ensure that there were no leaks for the test suitewhich additionally resulted in a number of `*_delete` calls being addedto tests using the C API (accidental omissions).The original goal of this change was to be a patch release for 37.0.1 toenable updating wasmtime-py to the 37.0.x releases of Wasmtime. In theend though the changes here were broad enough that I no longer feel thatthis is a good idea, so wasmtime-py will be skipping the 37 version ofWasmtime.* Run `clang-format`prtest:full List of files: /wasmtime-44.0.1/examples/externref.cc Tue, 07 Oct 2025 16:36:13 +0000 Alex Crichton <alex@alexcrichton.com> http://172.16.0.5:8080/history/wasmtime-44.0.1/examples/externref.cc#13ebd6f5 c-api: Bring wasmtime-cpp into this repository (#10582)* c-api: Bring wasmtime-cpp into this repository.`wasmtime-cpp/include/wasmtime.hh` -> `/crates/c-api/include/``wasmtime-cpp/tests/*` -> `/crates/c-api/tests/``wasmtime-cpp/examples/*` -> `/examples/`See discussion in #10566 for more context.* Make tests disabled by default prtest:full* Mention C++ API in the c-api README* Enable C++ only for tests* Add *.hh files to doxygenThis requires disabling warnings on undocumented, as `wasm.hh` hasundocumeted structuresAlso fix urls in `wasmtime.hh`* Re-enable `WARN_IF_UNDOCUMENTED`This required excluding `wasm.hh`, `wasmtime::detail` namespace, and somemacros.Also documented two overloads to `Func::call()` List of files: /wasmtime-44.0.1/examples/externref.cc Wed, 16 Apr 2025 18:28:47 +0000 MangoPeachGrape <191630121+MangoPeachGrape@users.noreply.github.com>