bridge

Marshaling between Luau host values and a realm's JavaScript value model.

bridge.toJs(rt, luauValue) lifts a Luau value into JS; bridge.toLuau(rt, jsValue) lowers a JS value back into Luau. Numbers, strings and booleans pass through both ways. Luau nil becomes values.undefined; values.undefined becomes nil and values.null returns the sentinel itself. A dense integer-keyed Luau table becomes a 0-based JS array; any other plain table becomes a JS object. Luau functions become JS functions (and vice versa), calling back across the boundary with arguments and return values marshaled. Tables carrying a metatable and userdata are opaque host handles, wrapped in a private JS field and unwrapped back to the original on the return trip, so values like AssetRefs survive round trips. Both directions are deep and cycle-safe: a per-call seen-map yields one result container per source container.