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Enable composing components that use GC #158
Description
For example, plugging a component with wasm-gc internals into a wasi-cli command:
$ wac plug command-incomplete.wasm --plug gc_component.wasm -o command.wasm
error: struct indexed types not supported without the gc feature (at offset 0x16)
I couldn't find any flag to enable GC support.
Activity
tanishiking commentedon Jun 12, 2025
@gertvv It is fixed by #146
Unfortunately, the new version hasn't yet released, use
cargo install --git https://github.com/bytecodealliance/wac wac-clicalvinrp commentedon Jun 25, 2025
Let me know if this works in the latest
0.7.0release.gertvv commentedon Jun 30, 2025
I didn't have my original example any longer, but I was able to implement the "reverse" part of the jco string-reverse-upper example in WAT using GC arrays and compose it with the JS compiled to WASM outer component without problems. I'm happy to share the example if useful.
Edit: I've published it as the addendum here: https://github.com/gertvv/wasm-component-raw/