component model tests

The component model test suites for wasmedge development.

Build WasmEdge with plugin

cd /path/to/wasmedge
mkdir build; cd build
cmake -DCMAKE_BUILD_TYPE=Debug -DWASMEDGE_PLUGIN_WASI_HTTP=ON -DWASMEDGE_BUILD_TOOLS=ON -GNinja ..
ninja

Run example

# at /path/to/wasmedge/build
./tools/wasmedge/wasmedge --enable-component /path/to/component-model-tests/core/core.wasm mdup 100

WASMEDGE_PLUGIN_PATH=./plugins/wasi_http ./tools/wasmedge/wasmedge --enable-component \
  /path/to/component-model-tests/http/http.wasm run "https://google.com"

Limitation

1. canonical ABI haven't get fully implemented
   • what we already have is supporting for type string, the rest higher type need to implement
   • resource haven't get handled.
2. The validation of component is incomplete, there is no guarantee your program with problems can be detected.
   • we only do validation for nested module.
   • new concepts in components not checked yet.

Next step

• Let WasmEdge plugin produces component instance.
• We are going to implement canonical ABI first, this will need data conversion which rely on memory and reallocate options in canonical lift/lowering.
  • rely on shared memory
  • rely on reallocate function
• implements canonical resource
• rest higher types record, variants etc.
• wasi preview2
• Implement validation about types.