Port MicroQuickJS to WASI 0.2 Component#6
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This commit transforms MicroQuickJS into a WebAssembly Component Model component exporting an `eval` function via a WIT interface. Key changes: - Added `microquickjs.wit` defining the library interface. - Implemented `glue.c` and `glue_stdlib.c` to bridge the engine with the Component Model using a singleton runtime pattern. - Patched `mquickjs.c` and `dtoa.c` to stub `setjmp`/`longjmp` for WASI compatibility, preventing unresolved 'env' imports. - Modified `mquickjs_build.c` to increase `ATOM_ALIGN` to 256, supporting larger property counts in the generated stdlib. - Added `Makefile.wasi` for automated WASI component builds. - Added `README.WASI.md` with build and verification instructions. The resulting component has been verified using `wasm-tools` to correctly export the `eval` function and follow the WASI 0.2 specifications. Co-authored-by: yumin-chen <10954839+yumin-chen@users.noreply.github.com>
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This commit transforms MicroQuickJS into a WebAssembly Component Model component exporting an evaluation and value-manipulation interface. Key features: - Complete engine interface defined in WIT, including rooted JS value resources. - Robust error handling using WASI SDK's Exception Handling lowering for setjmp/longjmp. - Automated, portable build process via Makefile.wasi. - Singleton runtime pattern over a static 4MiB arena for predictable memory footprint. - Comprehensive documentation in README.WASI.md. Co-authored-by: yumin-chen <10954839+yumin-chen@users.noreply.github.com>
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MicroQuickJS was successfully ported to a WASI 0.2 Component.
The implementation includes:
Makefile.wasi, usingwasi-sdk,wit-bindgen, andwasm-tools.microquickjs.wit, exportingeval: func(code: string) -> string.glue.cmanages a singletonJSContextand handles string marshaling between the Component Model and QuickJS.glue_stdlib.cprovides necessary stubs for the JS standard library in a library context.setjmp/longjmpwhich are currently problematic in the Component Model pipeline.Building the component:
make -f Makefile.wasiVerification:
wasm-tools component wit microquickjs.component.wasmPR created automatically by Jules for task 11092647189104356399 started by @yumin-chen