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authorEelco Dolstra <eelco.dolstra@logicblox.com>2013-11-19 00:03:11 +0100
committerEelco Dolstra <eelco.dolstra@logicblox.com>2013-11-19 00:04:11 +0100
commit77c13cdf566ffedc70d8860571afae8a6d43b552 (patch)
tree80d2c35c450911d0401e8a95d28ff9d8904b53fc /doc/manual/builtins.xml
parent285df765b91588e39d6f35a32e30b84c3cb5be75 (diff)
Add a toJSON primop
Diffstat (limited to 'doc/manual/builtins.xml')
-rw-r--r--doc/manual/builtins.xml12
1 files changed, 12 insertions, 0 deletions
diff --git a/doc/manual/builtins.xml b/doc/manual/builtins.xml
index 395829798..6a472291c 100644
--- a/doc/manual/builtins.xml
+++ b/doc/manual/builtins.xml
@@ -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