Implement component-to-component calls with resources #6769
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This fills out support in FACT in Wasmtime to support component-to-component calls that use resources. This ended up being relatively simple as it's "just" a matter of moving resources between tables which at this time bottoms out in calls to the host. These new trampolines are are relatively easy to add after bytecodealliance#6751 which helps keep this change contained. Closes bytecodealliance#6696
fitzgen
approved these changes
Jul 25, 2023
crates/runtime/src/component.rs
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| // Implement `lower_borrow`'s special case here where if a borrow is | ||
| if dst_owns_resource { | ||
| return Ok(rep); |
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A haiku:
comment forgotten
lonely and so incomplete
TODO for Alex
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Oh dear I'm sorry
Thank you Nick for your review
I'm caught red-handed
geekbeast
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Aug 1, 2023
* main: (47 commits) Add core dump support to the runtime (bytecodealliance#6513) Resource table tracks child relationships (bytecodealliance#6779) Wasmtime: Move `OnDemandInstanceAllocator` to its own module (bytecodealliance#6790) wasi: Test the stdio streams implementation (bytecodealliance#6764) Don't generate same-named imports in fact modules (bytecodealliance#6783) Wasmtime: Add support for Wasm tail calls (bytecodealliance#6774) Cranelift: Fix `ABIMachineSpec::gen_add_imm` for riscv64 (bytecodealliance#6780) Update the wasm-tools family of crates, disallow empty component types (bytecodealliance#6777) Fix broken link to WASI API documentation (bytecodealliance#6775) A bunch of cleanups for cranelift-codegen-meta (bytecodealliance#6772) Implement component-to-component calls with resources (bytecodealliance#6769) Ignore async_stack_size if async_support is disabled (bytecodealliance#6771) A bunch of minor cleanups (bytecodealliance#6767) Fix flaky tests in preview2 streams (bytecodealliance#6763) Refactor and simplify component trampolines (bytecodealliance#6751) Cranelift: Implement tail calls on riscv64 (bytecodealliance#6749) WASI Preview 2: rewrite streams and pollable implementation (bytecodealliance#6556) cranelift-wasm: Add support for translating Wasm tail calls to CLIF (bytecodealliance#6760) Cranelift: Get tail calls working on aarch64 (bytecodealliance#6723) Implement component model resources in Wasmtime (bytecodealliance#6691) ...
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This fills out support in FACT in Wasmtime to support component-to-component calls that use resources. This ended up being relatively simple as it's "just" a matter of moving resources between tables which at this time bottoms out in calls to the host. These new trampolines are are relatively easy to add after #6751 which helps keep this change contained.
Closes #6696