This repository was archived by the owner on Nov 29, 2025. It is now read-only.
Integrate with caniuse.com for easier legacy browsers support #331
Description
Motivation
As we start using newer features, like BigInt, FinalizationRegistry etc, we should still allow targeting older browsers.
Proposed solution
I'm currently thinking we could make --environment option more granular, allowing users to specify browser versions or JS versions, similarly to how --target option of esbuild works. Based on this information, we could pass additional flags to JSKit build (namely JAVASCRIPTKIT_WITHOUT_WEAKREFS), enable/disable i64 transform etc.
Alternatives considered
Not sure if direct support in SwiftPM and Swift for something like this is on the table yet, I previously tried something similar with swiftwasm/swift-package-manager#373.