wasmtime-cli: support run --invoke for components using wave

[pchickey]

No description provided.

[tpmccallum]

Tried this locally and got the following:

cd /Users/tpmccallum
git clone https://github.com/bytecodealliance/wasmtime.git
cd wasmtime
git checkout main
git pull origin main
git checkout pch/invoke_wave
git merge main
cargo clean
cargo build --release

Repo I used for testing is at https://github.com/tpmccallum/testing_components/tree/main (specifically the compress component):

tpmccallum@192-168-1-17 compress % /Users/tpmccallum/wasmtime/target/release/wasmtime run --invoke compress target/wasm32-wasip1/debug/compress.wasm

Error: failed to run main module `target/wasm32-wasip1/debug/compress.wasm`

Caused by:
    0: parsing invoke "compress"
    1: unexpected end of input at 8..8

[pchickey]

The wave syntax requires functions to be invoked with parens, so --invoke "compress()" should hopefully work. one of the big things missing is better error messages...

[tpmccallum]

Thanks for the response @pchickey
That makes sense. Thank you, and I will try that next and report back here.

[tpmccallum]

Hi @pchickey
Thanks for the additional info. I got this working - and wrote an article < https://medium.com/wasm/wasm-component-model-seamless-compression-c-rust-and-wasm-3b8d52ed8b31 >
Thanks again!
Let me know if you need/want me to do any further testing on this. Super happy to assist.