[Nix-dev] Attribute selection with default

[Michael Raskin]

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Eelco Dolstra wrote:
> Nice in what way?  Do a grep on attrByPath in
> ./pkgs/build-support/builder-defs/builder-defs.nix and tell me that file
> wouldn't become more readable by getting rid of all those attrByPath calls :-)
> (Actually, most of them can also be eliminated by using default arguments...)

And I just don't like undelimited (unlike x.{a ? b}) ternary operator
with possibly multiple right hand side syntax elements.
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