[Nix-dev] What does `self` mean in the function `ghcWithPackages`?

[roconnor at theorem.ca]

Hi, if you are familiar with fixpoints, then the following blog post may 
be helpful in understanding this pattern:

http://r6.ca/blog/20140422T142911Z.html

On Tue, 16 Dec 2014, Carlo Nucera wrote:

> Hi all,
> I was reading the sources of ghcWithPackages:
>
> ghcWithPackages = pkgs : callPackage
> ../development/compilers/ghc/with-packages.nix {
>  ghc = ghc;                  # refers to ghcPlain
>  packages = pkgs self;
>  ignoreCollisions = false;
> }
>
> In the line `packages = pkgs self;` what does `self` refer to?
>
> I gather that pkgs, the value we should pass to ghcWithPackages, has
> to be a function, to be called on self;
> but what should this function do?
>
> Best regards
> Carlo Nucera
> _______________________________________________
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> nix-dev at lists.science.uu.nl
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>

-- 
Russell O'Connor                                      <http://r6.ca/>
``All talk about `theft,''' the general counsel of the American Graphophone
Company wrote, ``is the merest claptrap, for there exists no property in
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