Make comments a single node in the grammar

This looks to be a *strong* idiom in tree-sitter parsers.

grammar.js

@@ -11,8 +11,7 @@ module.exports = grammar({
 
   extras: ($) => [
     /\s+/,
-    $.line_comment,
+    $.comment,
-    $.block_comment,
   ],
 
   rules: {
@@ -23,9 +22,10 @@ module.exports = grammar({
       $.module,
     ),
 
-    line_comment: (_) => seq("//", /[^\n]*/),
+    comment: (_) => choice(
-
+      seq("//", /[^\n]*/),
-    block_comment: (_) => seq("/*", /[^*]*\*+([^/*][^*]*\*+)*/, '/'),
+      seq("/*", /[^*]*\*+([^/*][^*]*\*+)*/, '/'),
+    ),
 
     // Definitions {{{
 

queries/highlights.scm

@@ -1,7 +1,4 @@
-[
+(comment) @comment
- (line_comment)
- (block_comment)
-] @comment
 
 ; Operators {{{
 (operator) @operator

src/grammar.json

@@ -21,7 +21,10 @@
         }
       ]
     },
-    "line_comment": {
+    "comment": {
+      "type": "CHOICE",
+      "members": [
+        {
           "type": "SEQ",
           "members": [
             {
@@ -34,7 +37,7 @@
             }
           ]
         },
-    "block_comment": {
+        {
           "type": "SEQ",
           "members": [
             {
@@ -50,6 +53,8 @@
               "value": "/"
             }
           ]
+        }
+      ]
     },
     "assignment": {
       "type": "SEQ",
@@ -956,11 +961,7 @@
     },
     {
       "type": "SYMBOL",
-      "name": "line_comment"
+      "name": "comment"
-    },
-    {
-      "type": "SYMBOL",
-      "name": "block_comment"
     }
   ],
   "conflicts": [],

src/node-types.json

@@ -168,12 +168,12 @@
     }
   },
   {
-    "type": "block_comment",
+    "type": "boolean_literal",
     "named": true,
     "fields": {}
   },
   {
-    "type": "boolean_literal",
+    "type": "comment",
     "named": true,
     "fields": {}
   },
@@ -259,11 +259,6 @@
       ]
     }
   },
-  {
-    "type": "line_comment",
-    "named": true,
-    "fields": {}
-  },
   {
     "type": "list_expression",
     "named": true,

test/corpus/comments.txt

@@ -7,7 +7,7 @@ Empty comment
 --------------------------------------------------------------------------------
 
 (source_file
-  (line_comment))
+  (comment))
 
 ================================================================================
 Single comment
@@ -18,7 +18,7 @@ Single comment
 --------------------------------------------------------------------------------
 
 (source_file
-  (line_comment))
+  (comment))
 
 ================================================================================
 Multiple comments
@@ -30,8 +30,8 @@ Multiple comments
 --------------------------------------------------------------------------------
 
 (source_file
-  (line_comment)
+  (comment)
-  (line_comment))
+  (comment))
 
 ================================================================================
 Empty block comment
@@ -42,7 +42,7 @@ Empty block comment
 --------------------------------------------------------------------------------
 
 (source_file
-  (block_comment))
+  (comment))
 
 ================================================================================
 Whitespace block comment
@@ -53,7 +53,7 @@ Whitespace block comment
 --------------------------------------------------------------------------------
 
 (source_file
-  (block_comment))
+  (comment))
 
 ================================================================================
 Block comment
@@ -64,7 +64,7 @@ Block comment
 --------------------------------------------------------------------------------
 
 (source_file
-  (block_comment))
+  (comment))
 
 ================================================================================
 Block comment with slashes
@@ -75,7 +75,7 @@ Block comment with slashes
 --------------------------------------------------------------------------------
 
 (source_file
-  (block_comment))
+  (comment))
 
 ================================================================================
 Block comment with asterisks
@@ -86,7 +86,7 @@ Block comment with asterisks
 --------------------------------------------------------------------------------
 
 (source_file
-  (block_comment))
+  (comment))
 
 ================================================================================
 Block comment (multiline)
@@ -103,7 +103,7 @@ Block comment (multiline)
 --------------------------------------------------------------------------------
 
 (source_file
-  (block_comment))
+  (comment))
 
 ================================================================================
 Block comment is not recursive
@@ -114,7 +114,7 @@ Block comment is not recursive
 --------------------------------------------------------------------------------
 
 (source_file
-  (block_comment))
+  (comment))
 
 ================================================================================
 Unterminated comment