Add _argument_item as a supertype

Author: ZedThree

grammar.js

@@ -106,6 +106,7 @@ module.exports = grammar({
   supertypes: $ => [
     $._expression,
     $._statements,
+    $._argument_item,
   ],
 
   rules: {
@@ -1984,21 +1985,16 @@ module.exports = grammar({
     // Unnamed node so we can reuse it for e.g. kind
     _argument_list: $ => prec.dynamic(
       1,
-      seq(
-        '(',
-        commaSep(choice(
-          $.keyword_argument,
-          $.extent_specifier,
-          $.assumed_size,
-          $.assumed_rank,
-          $._expression,
-          $.multiple_subscript,
-          $.multiple_subscript_triplet,
-        )),
-        ')'
-      )
+      seq('(', commaSep(choice($._expression, $._argument_item)), ')')
+    ),
+    _argument_item: $ => choice(
+      $.keyword_argument,
+      $.extent_specifier,
+      $.assumed_size,
+      $.assumed_rank,
+      $.multiple_subscript,
+      $.multiple_subscript_triplet,
     ),
-
     argument_list: $ => $._argument_list,
 
     // precedence is used to prevent conflict with assignment expression

src/grammar.json

@@ -19369,33 +19369,13 @@
                   {
                     "type": "CHOICE",
                     "members": [
-                      {
-                        "type": "SYMBOL",
-                        "name": "keyword_argument"
-                      },
-                      {
-                        "type": "SYMBOL",
-                        "name": "extent_specifier"
-                      },
-                      {
-                        "type": "SYMBOL",
-                        "name": "assumed_size"
-                      },
-                      {
-                        "type": "SYMBOL",
-                        "name": "assumed_rank"
-                      },
                       {
                         "type": "SYMBOL",
                         "name": "_expression"
                       },
                       {
                         "type": "SYMBOL",
-                        "name": "multiple_subscript"
-                      },
-                      {
-                        "type": "SYMBOL",
-                        "name": "multiple_subscript_triplet"
+                        "name": "_argument_item"
                       }
                     ]
                   },
@@ -19411,33 +19391,13 @@
                         {
                           "type": "CHOICE",
                           "members": [
-                            {
-                              "type": "SYMBOL",
-                              "name": "keyword_argument"
-                            },
-                            {
-                              "type": "SYMBOL",
-                              "name": "extent_specifier"
-                            },
-                            {
-                              "type": "SYMBOL",
-                              "name": "assumed_size"
-                            },
-                            {
-                              "type": "SYMBOL",
-                              "name": "assumed_rank"
-                            },
                             {
                               "type": "SYMBOL",
                               "name": "_expression"
                             },
                             {
                               "type": "SYMBOL",
-                              "name": "multiple_subscript"
-                            },
-                            {
-                              "type": "SYMBOL",
-                              "name": "multiple_subscript_triplet"
+                              "name": "_argument_item"
                             }
                           ]
                         }
@@ -19458,6 +19418,35 @@
         ]
       }
     },
+    "_argument_item": {
+      "type": "CHOICE",
+      "members": [
+        {
+          "type": "SYMBOL",
+          "name": "keyword_argument"
+        },
+        {
+          "type": "SYMBOL",
+          "name": "extent_specifier"
+        },
+        {
+          "type": "SYMBOL",
+          "name": "assumed_size"
+        },
+        {
+          "type": "SYMBOL",
+          "name": "assumed_rank"
+        },
+        {
+          "type": "SYMBOL",
+          "name": "multiple_subscript"
+        },
+        {
+          "type": "SYMBOL",
+          "name": "multiple_subscript_triplet"
+        }
+      ]
+    },
     "argument_list": {
       "type": "SYMBOL",
       "name": "_argument_list"
@@ -21571,7 +21560,8 @@
   ],
   "supertypes": [
     "_expression",
-    "_statements"
+    "_statements",
+    "_argument_item"
   ],
   "reserved": {}
 }