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Add primops all and any

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These are used thousands of times during NixOS evaluation, so it's
useful to speed them up.
This commit is contained in:
Eelco Dolstra 2015-07-23 19:23:11 +02:00
parent 39e27a04b8
commit 14be783676
4 changed files with 67 additions and 0 deletions
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22
doc/manual/expressions/builtins.xml
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@ -39,6 +39,28 @@ available as <function>builtins.derivation</function>.</para>
</varlistentry>
<varlistentry><term><function>builtins.all</function>
<replaceable>pred</replaceable> <replaceable>list</replaceable></term>
<listitem><para>Return <literal>true</literal> if the function
<replaceable>pred</replaceable> returns <literal>true</literal>
for all elements of <replaceable>list</replaceable>,
and <literal>false</literal> otherwise.</para></listitem>
</varlistentry>
<varlistentry><term><function>builtins.any</function>
<replaceable>pred</replaceable> <replaceable>list</replaceable></term>
<listitem><para>Return <literal>true</literal> if the function
<replaceable>pred</replaceable> returns <literal>true</literal>
for at least one element of <replaceable>list</replaceable>,
and <literal>false</literal> otherwise.</para></listitem>
</varlistentry>
<varlistentry><term><function>builtins.attrNames</function>
<replaceable>set</replaceable></term>