Support class static blocks

Author: Shraymonks

grammar.js

@@ -1084,6 +1084,7 @@ module.exports = grammar({
       repeat(choice(
         seq(field('member', $.method_definition), optional(';')),
         seq(field('member', $.field_definition), $._semicolon),
+        field('member', $.class_static_block),
         field('template', $.glimmer_template)
       )),
       '}'
@@ -1105,6 +1106,13 @@ module.exports = grammar({
       ')'
     ),
 
+    class_static_block: $ => seq(
+      'static',
+      '{',
+      repeat($.statement),
+      '}',
+    ),
+
     // This negative dynamic precedence ensures that during error recovery,
     // unfinished constructs are generally treated as literal expressions,
     // not patterns.

src/grammar.json

@@ -5957,6 +5957,14 @@
                   }
                 ]
               },
+              {
+                "type": "FIELD",
+                "name": "member",
+                "content": {
+                  "type": "SYMBOL",
+                  "name": "class_static_block"
+                }
+              },
               {
                 "type": "FIELD",
                 "name": "template",
@@ -6085,6 +6093,30 @@
         }
       ]
     },
+    "class_static_block": {
+      "type": "SEQ",
+      "members": [
+        {
+          "type": "STRING",
+          "value": "static"
+        },
+        {
+          "type": "STRING",
+          "value": "{"
+        },
+        {
+          "type": "REPEAT",
+          "content": {
+            "type": "SYMBOL",
+            "name": "statement"
+          }
+        },
+        {
+          "type": "STRING",
+          "value": "}"
+        }
+      ]
+    },
     "pattern": {
       "type": "PREC_DYNAMIC",
       "value": -1,

src/node-types.json

@@ -873,6 +873,10 @@
         "multiple": true,
         "required": false,
         "types": [
+          {
+            "type": "class_static_block",
+            "named": true
+          },
           {
             "type": "field_definition",
             "named": true
@@ -956,6 +960,21 @@
       ]
     }
   },
+  {
+    "type": "class_static_block",
+    "named": true,
+    "fields": {},
+    "children": {
+      "multiple": true,
+      "required": false,
+      "types": [
+        {
+          "type": "statement",
+          "named": true
+        }
+      ]
+    }
+  },
   {
     "type": "computed_property_name",
     "named": true,