Lazy

    pub const Lazy = enum(u32) {
        /// Values which fit in a `u6` are already-resolved `Alignment` values. Other values are
        /// indices into `Builder.alignment_forward_references`, offset by `maxInt(u6)`.
        _,

        pub fn wrap(a: Alignment) Lazy {
            return @fromBackingInt(@backingInt(a));
        }
        pub fn resolve(l: Lazy, b: *const Builder) Alignment {
            return switch (@backingInt(l)) {
                0...maxInt(u6) => |raw| @fromBackingInt(@intCast(raw)),
                else => |offset_index| b.alignment_forward_references.items[offset_index - maxInt(u6)],
            };
        }

        fn fromFwdRefIndex(index: usize) Lazy {
            return @fromBackingInt(@intCast(index + maxInt(u6)));
        }
        fn toFwdRefIndex(l: Lazy) usize {
            return @backingInt(l) - maxInt(u6);
        }
    }