jakekonrad / thunk

Laziness in Elixir

Thunk

This package provides a way to do laziness in Elxir. Contains functions to build thunks from elixir terms and combinators for more complex computations.

Installation

Available in Hex, the package can be installed by adding thunk to your list of dependencies in mix.exs:

def deps do
  [
    {:thunk, "~> 0.4.0"}
  ]
end

The docs can be found at https://hexdocs.pm/thunk.

thunk's Issues

Update package version in Hex

First of all, thanks for writing the lib. I needed to delay the evaluation of certain terms, and manually wrapping and unwrapping them was becoming tedious. I searched for packages that would help with this, checked out a few, but in the end, I decided to use your library, and it worked without issues. Great job!

Now for the problem: the new release, 0.4.0, is not published to hex and hexdocs. This resulted in some confusion on my part when I tried looking for Thunk.suspend source.

I'd like to ask you to push the newer version to Hex. Also, could you write a few words on what incompatible changes there are between 0.3.1 and 0.4.0? By the time I realized there's a newer version, I already used Thunk.suspend, and I see that it gets renamed to Thunk.delay. Are there any other changes in the API that I'd need to deal with when upgrading? Thanks! :)

Possible space leak

To prevent the map function on thunks from changing the value of a thunk unexpectedly the map function spawns a new process so the change can only be observed by processes that receive the updated thunk. This only works without causing a space leak iff processes are garbage collected when no other process have their pid, which upon deeper reflection I do not think happens.