X-Git-Url: https://git.r.bdr.sh/rbdr/tree-sitter-api-notation/blobdiff_plain/dc87cd894bad9ad0202dcd4a89e7d0af47c53fc9..4a1d56285559545a56cb7c79a0ea1564f01e09e5:/src/grammar.json

diff --git a/src/grammar.json b/src/grammar.json
index 1d2d121..e25308a 100644
--- a/src/grammar.json
+++ b/src/grammar.json
@@ -316,8 +316,17 @@
         "type": "SEQ",
         "members": [
           {
-            "type": "SYMBOL",
-            "name": "_label"
+            "type": "CHOICE",
+            "members": [
+              {
+                "type": "SYMBOL",
+                "name": "optional_value"
+              },
+              {
+                "type": "SYMBOL",
+                "name": "_label"
+              }
+            ]
           },
           {
             "type": "CHOICE",
@@ -370,6 +379,23 @@
         ]
       }
     },
+    "optional_value": {
+      "type": "SEQ",
+      "members": [
+        {
+          "type": "STRING",
+          "value": "["
+        },
+        {
+          "type": "SYMBOL",
+          "name": "_label"
+        },
+        {
+          "type": "STRING",
+          "value": "]"
+        }
+      ]
+    },
     "type_annotation": {
       "type": "SEQ",
       "members": [