Update README and linker documentation for function wrapping in module instances#12073
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Tam1SH wants to merge 1 commit intobytecodealliance:mainfrom
Open
Update README and linker documentation for function wrapping in module instances#12073Tam1SH wants to merge 1 commit intobytecodealliance:mainfrom
Tam1SH wants to merge 1 commit intobytecodealliance:mainfrom
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dicej
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Nov 24, 2025
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Thanks for this! LGTM, but please see the inline comment.
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| linker.func_wrap("host", "host_func", |caller: Caller<'_, u32>, param: i32| { | ||
| linker.root().instance("host").func_wrap("host_func", |ctx: StoreContextMut<'_, ()>, (param,): (i32,)| { | ||
| println!("Got {} from WebAssembly", param); | ||
| println!("my host state is: {}", caller.data()); | ||
| println!("my host state is: {}", ctx.data()); | ||
| Ok(()) |
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The example here is for core wasm, not components, so this'll need to stay as it was before. You can add (or link) a different example for components though
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Spent an hour figuring out that the documentation was missing this crucial detail :)