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* Allow a default value in attribute selection by writing

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x.y.z or default

  (as originally proposed in
  https://mail.cs.uu.nl/pipermail/nix-dev/2009-September/002989.html).

  For instance, an expression like

    stdenv.lib.attrByPath ["features" "ckSched"] false args

  can now be written as

    args.features.ckSched or false
This commit is contained in:
Eelco Dolstra 2011-07-13 12:19:57 +00:00
parent 2b9e29b1c8
commit 0a623a10c7
9 changed files with 70 additions and 22 deletions
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4
doc/manual/release-notes.xml
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@ -32,6 +32,10 @@
<literal>--max-silent-time</literal> is ineffective.</para>
</listitem>
<listitem>
<para>TODO: “or” keyword.</para>
</listitem>
</itemizedlist>
</section>