wasmtime-c-api: Add support for GC references in wasmtime.h APIs
#8346
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Restores support for `externref` in `wasmtime_val_t`, methods for manipulating them and getting their wrapped host data, and examples/tests for these things. Additionally adds support for `anyref` in `wasmtime_val_t`, clone/delete methods similar to those for `externref`, and a few `i31ref`-specific methods. Also adds C and Rust example / test for working with `anyref`.
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…ytecodealliance#8346) Restores support for `externref` in `wasmtime_val_t`, methods for manipulating them and getting their wrapped host data, and examples/tests for these things. Additionally adds support for `anyref` in `wasmtime_val_t`, clone/delete methods similar to those for `externref`, and a few `i31ref`-specific methods. Also adds C and Rust example / test for working with `anyref`.
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* c-api: Better differentiate between `wasm.h` and `wasmtime.h` APIs (#8344) This renames some types and adds some type aliases to help us better distinguish between `wasm.h` APIs and `wasmtime.h` APIs, primarily for `Store`-related types. In general, `WasmFoo` is related to `wasm.h` and `WasmtimeFoo` is related to `wasmtime.h`. * `StoreRef` -> `WasmStoreRef` * Introduce the `WasmStore[Data]` and `WasmStoreContext[Mut]` aliases * `StoreData` -> `WasmtimeStoreData` * `CStoreContext[Mut]` -> `WasmtimeStoreContext[Mut]` * Introduce the `Wasmtime{Store,Caller}` aliases * `wasmtime-c-api`: Improve non-support of GC references in `wasm.h` APIs (#8345) * c-api: Better differentiate between `wasm.h` and `wasmtime.h` APIs This renames some types and adds some type aliases to help us better distinguish between `wasm.h` APIs and `wasmtime.h` APIs, primarily for `Store`-related types. In general, `WasmFoo` is related to `wasm.h` and `WasmtimeFoo` is related to `wasmtime.h`. * `StoreRef` -> `WasmStoreRef` * Introduce the `WasmStore[Data]` and `WasmStoreContext[Mut]` aliases * `StoreData` -> `WasmtimeStoreData` * `CStoreContext[Mut]` -> `WasmtimeStoreContext[Mut]` * Introduce the `Wasmtime{Store,Caller}` aliases * c-api: Improve non-support of GC references in `wasm.h` APIs A couple small tweaks: error message improvements, exhaustive matching, etc... * Fix running wasi-common tests on CI (#8353) * Fix running wasi-common tests on CI Turns out we haven't been running wasi-common tests for some time in CI and they've started failing. Force enable the test at all times and then fix the test failures. The test failures here were introduced in #8277 and weren't caught due to the test not running and the fix was to relax the implementation of `fd_pread` to avoid taking multiple mutable borrows. * Fix CI * Update release notes for 20.0.0 (#8358) A busy release! * Enable the gc feature by default in the c-api (#8356) Match the Wasmtime crate in this respect * wasmtime-c-api: Add support for GC references in `wasmtime.h` APIs (#8346) Restores support for `externref` in `wasmtime_val_t`, methods for manipulating them and getting their wrapped host data, and examples/tests for these things. Additionally adds support for `anyref` in `wasmtime_val_t`, clone/delete methods similar to those for `externref`, and a few `i31ref`-specific methods. Also adds C and Rust example / test for working with `anyref`. * Fix calculation of gc refs in functions (#8355) * Fix calculation of gc refs in functions In addition to excluding i31 also exclude funcrefs. * Review comments * Remove `wasi_config_preopen_socket` from C header (#8364) This was removed in #8066 * Tidy up some headers related to shared memory (#8366) * Tidy up some headers related to shared memory * Don't declare an anonymous `struct wasmtime_sharedmemory`, instead `#include` the actual definition. * Fix an issue where a header in `sharedmemory.h` referred to a type in `extern.h` which wasn't `#include`'d. This function, `wasmtime_sharedmemory_into_extern`, additionally isn't necessary as it's no different than manually constructing it. Fix this by removing this function. * Run clang-format * c-api: Fix alignment of `wasmtime_val_*` (#8363) * c-api: Fix alignment of `wasmtime_val_*` This commit fixes an issue where `wasmtime_val_raw_t` had an incorrect alignment. In Rust `ValRaw` contains a `u128` which has an alignment of 16 but in C the representation had a smaller alignment meaning that the alignment of the two structures was different. This was seen to cause alignment faults when structure were passed from C++ to Rust, for example. This commit changes the Rust representation of `ValRaw`'s `v128` field to do the same as C which is to use `[u8; 16]`. This avoids the need to raise the alignment in C which appears to be nontrivial. Cranelift is appropriately adjusted to understand that loads/stores from `ValRaw` are no longer aligned. Technically this only applies to the `v128` field but it's not too bad to apply it to the other fields as well. * Try alternate syntax for alignof * Use `--locked` on all `cargo install` in CI, also remove non-locked example (#8369) * Use `--locked` on all `cargo install` in CI Prevents any updates to rustc or crates from accidentally causing issues by ensuring that the same set of deps is used over time. * Remove rust/WASI markdown parser example The documentation referring to this example was removed in #6994 and that forgot to remove this as well. This example is building without a lock file which is causing issues in #8368. --------- Co-authored-by: Nick Fitzgerald <fitzgen@gmail.com>
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Builds on top of #8344
Restores support for
externrefinwasmtime_val_t, methods for manipulating them and getting their wrapped host data, and examples/tests for these things.Additionally adds support for
anyrefinwasmtime_val_t, clone/delete methods similar to those forexternref, and a fewi31ref-specific methods. Also adds C and Rust example / test for working withanyref.