Stream: wamr

Topic: Component Mode (partial ABI implementation)

Gordon Smith (Mar 20 2025 at 11:26):

I have been working through parts of the component model ABI from a C++ hosts perspective on and off for the last year and finally got around to mocking up how it looks in a real world host example (using wamr, but should be equally agnostic for other runtimes).
Here is my first attempt at a "sample" for wamr (wit generating the stubs for a guest, with a hand coded wamr host):

• wit: https://github.com/GordonSmith/component-model-cpp/blob/trunk/samples/wasm/sample.wit
• wamr: https://github.com/GordonSmith/component-model-cpp/blob/trunk/samples/wamr/main.cpp#L171-L265

Hopefully the usage pattern is self evident from the sample aboce and will lend itself to a future wit -> c++ host generator?

FYI the output for the example is:

and_func(0, 0): 0
and_func(0, 1): 0
and_func(1, 0): 0
and_func(1, 1): 1
add_func(3.1, 0.2): 3.3
reverse_string(Hello World!): !dlroW olleH
reverse_string(!dlroW olleH): Hello World!
reverse_tuple(0, Hello World!): !dlroW olleH, 1
list_filter_bool(2): 1

Last updated: Apr 11 2025 at 18:04 UTC