Add builtin function ‘fromJSON’

Fixes #294.

1 files changed, 32 insertions, 0 deletions

diff --git a/tests/lang/eval-okay-fromjson.nix b/tests/lang/eval-okay-fromjson.nix
new file mode 100644
index 000000000..5ed0c1c43
--- /dev/null
+++ b/tests/lang/eval-okay-fromjson.nix
@@ -0,0 +1,32 @@
+# RFC 7159, section 13.
+builtins.fromJSON
+  ''
+    {
+      "Image": {
+          "Width":  800,
+          "Height": 600,
+          "Title":  "View from 15th Floor",
+          "Thumbnail": {
+              "Url":    "http://www.example.com/image/481989943",
+              "Height": 125,
+              "Width":  100
+          },
+          "Animated" : false,
+          "IDs": [116, 943, 234, 38793, true  ,false,null, -100]
+        }
+    }
+  ''
+==
+  { Image =
+    { Width = 800;
+      Height = 600;
+      Title = "View from 15th Floor";
+      Thumbnail =
+        { Url = http://www.example.com/image/481989943;
+          Height = 125;
+          Width = 100;
+        };
+      Animated = false;
+      IDs = [ 116 943 234 38793 true false null (0-100) ];
+    };
+  }