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Add a toJSON primop

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Eelco Dolstra 2013-11-19 00:03:11 +01:00
parent 285df765b9
commit 77c13cdf56
10 changed files with 179 additions and 24 deletions
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12
doc/manual/builtins.xml
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@ -750,6 +750,18 @@ in foo</programlisting>
</varlistentry>
<varlistentry><term><function>builtins.toJSON</function> <replaceable>e</replaceable></term>
<listitem><para>Return a string containing a JSON representation
of <replaceable>e</replaceable>. Strings, integers, booleans,
nulls and lists are mapped to their JSON equivalents. Sets
(except derivations) are represented as objects. Derivations are
translated to a JSON string containing the derivation’s output
path. Paths are copied to the store and represented as a JSON
string of the resulting store path.</para></listitem>
</varlistentry>
<varlistentry><term><function>builtins.toPath</function> <replaceable>s</replaceable></term>
<listitem><para>Convert the string value