d2c371927e
Previously the memory would occasionally be collected during eval since the GC doesn't consider the member variable as alive / doesn't scan the region of memory where the pointer lives. By using the traceable_allocator<T> allocator provided by Boehm GC we can ensure the memory isn't collected. It should be properly freed when SourceExprCommand goes out of scope.
Nix, the purely functional package manager
Nix is a new take on package management that is fairly unique. Because of its purity aspects, a lot of issues found in traditional package managers don't appear with Nix.
To find out more about the tool, usage and installation instructions, please read the manual, which is available on the Nix website at https://nixos.org/nix/manual.
Contributing
Take a look at the Hacking Section of the manual. It helps you to get started with building Nix from source.
License
Nix is released under the LGPL v2.1