MapContext

const MapContext = struct {
    cb: *const Bundle,

    pub fn hash(ctx: MapContext, k: der.Element.Slice) u64 {
        return std.hash_map.hashString(ctx.cb.bytes.items[k.start..k.end]);
    }

    pub fn eql(ctx: MapContext, a: der.Element.Slice, b: der.Element.Slice) bool {
        const bytes = ctx.cb.bytes.items;
        return mem.eql(
            u8,
            bytes[a.start..a.end],
            bytes[b.start..b.end],
        );
    }
}