[22.0.0] Change WASI trait impls back to being blanket impls #8767
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…#8766) This commit is a partial revert of bytecodealliance#8609 to return `wasmtime-wasi` and `wasmtime-wasi-http` back to using blanket impls. The main change from before is to change the blanket impls to be in terms of a local newtype wrapper to avoid trait coherence issues. This is done because otherwise using the traits before required `&mut dyn WasiView` to exist but sometimes only a `Foo<'a>` is held which is not easy to get a `&mut dyn ...` view of. By changing to a blanket impl in terms of a newtype wrapper, `WasiImpl`, it's possible to call `bindgen!`-generated `add_to_linker_get_host` functions with a return value of `WasiImpl<Foo<'a>>` which enables hooking into all the generated bindings.
elliottt
approved these changes
Jun 10, 2024
alexcrichton
merged commit 69a78fc
into
bytecodealliance:release-22.0.0
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This is a backport of #8766 to the 22.0.0 release branch.