requiresAllocator

fn requiresAllocator(T: type) bool {
    _ = valid_types;
    return switch (@typeInfo(T)) {
        .pointer => true,
        .array => |array| return array.len > 0 and requiresAllocator(array.child),
        .@"struct" => |@"struct"| inline for (@"struct".field_types) |field_type| {
            if (requiresAllocator(field_type)) {
                break true;
            }
        } else false,
        .@"union" => |@"union"| inline for (@"union".field_types) |field_type| {
            if (requiresAllocator(field_type)) {
                break true;
            }
        } else false,
        .optional => |optional| requiresAllocator(optional.child),
        .vector => |vector| return vector.len > 0 and requiresAllocator(vector.child),
        else => false,
    };
}