Compiling Your Language to WasmGC & Friends
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WasmGC makes it possible to compile garbage-collected languages to WebAssembly. However, a real world compiler backend still has to solve some problems: mapping a rich type system onto WasmGC, bridging async code with JSPI, and using Custom Descriptors so Wasm objects can carry JS prototypes.
In this lightning talk, I'll walk through these pieces using Scala.js, the Scala-to-JS/Wasm compiler, as an example, and talk about the question everyone actually cares about: is it fast yet? I'll share benchmark numbers comparing a WasmGC backend against JS backend.
Rikito Taniguchi
Rikito (@tanishiking) is working as a Scala Compiler Engineer at VirtusLab and Scala Center. Most of his development work has been on the Scala 3 compiler and build tooling, and he is currently focused on the Scala-to-Wasm compiler. In his spare time he enjoys bouldering and MtG though these days he's mostly busy by parenting.