Summary: We intend to prototype the exception handling proposal for WebAssembly. The proposal adds a general exception handling facility, allowing languages that target Wasm to compile to a native exception feature rather than using JavaScript's exceptions.
Much of the implementation has already landed in the Baseline Wasm compiler, and implementing it in optimizing tiers is in progress. Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1695715 (meta) Standard: https://github.com/WebAssembly/exception-handling The specification is in phase 2 (proposal spec text available) of the Wasm standardization process. Platform coverage: All. Preference: For the JS shell, there is an --enable-wasm-exceptions compilation flag and --wasm-exceptions runtime flag to enable the feature. No browser preference yet. DevTools bug: N/A Other browsers: Staged for origin trial in Chrome v90: https://www.chromestatus.com/feature/4756734233018368 web-platform-tests: Test suite for Wasm specification is still pending. This is a requirement for phase 3 (implementation phase). Cheers, Asumu _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
