Add array concat operator

editors/tree-sitter-decodal/src/grammar.json

@@ -716,7 +716,7 @@
     },
     "call_expression": {
       "type": "PREC_LEFT",
-      "value": 10,
+      "value": 11,
       "content": {
         "type": "SEQ",
         "members": [
@@ -786,7 +786,7 @@
     },
     "path_expression": {
       "type": "PREC_LEFT",
-      "value": 11,
+      "value": 12,
       "content": {
         "type": "SEQ",
         "members": [
@@ -815,7 +815,7 @@
     },
     "comparison_constraint": {
       "type": "PREC_RIGHT",
-      "value": 10,
+      "value": 11,
       "content": {
         "type": "SEQ",
         "members": [
@@ -857,7 +857,7 @@
     },
     "unary_expression": {
       "type": "PREC",
-      "value": 9,
+      "value": 10,
       "content": {
         "type": "SEQ",
         "members": [
@@ -1033,6 +1033,46 @@
         {
           "type": "PREC_LEFT",
           "value": 7,
+          "content": {
+            "type": "SEQ",
+            "members": [
+              {
+                "type": "FIELD",
+                "name": "left",
+                "content": {
+                  "type": "SYMBOL",
+                  "name": "_expression"
+                }
+              },
+              {
+                "type": "FIELD",
+                "name": "operator",
+                "content": {
+                  "type": "TOKEN",
+                  "content": {
+                    "type": "PREC",
+                    "value": 2,
+                    "content": {
+                      "type": "STRING",
+                      "value": "++"
+                    }
+                  }
+                }
+              },
+              {
+                "type": "FIELD",
+                "name": "right",
+                "content": {
+                  "type": "SYMBOL",
+                  "name": "_expression"
+                }
+              }
+            ]
+          }
+        },
+        {
+          "type": "PREC_LEFT",
+          "value": 8,
           "content": {
             "type": "SEQ",
             "members": [
@@ -1074,7 +1114,7 @@
         },
         {
           "type": "PREC_LEFT",
-          "value": 8,
+          "value": 9,
           "content": {
             "type": "SEQ",
             "members": [

editors/tree-sitter-decodal/src/node-types.json

@@ -172,6 +172,10 @@
             "type": "+",
             "named": false
           },
+          {
+            "type": "++",
+            "named": false
+          },
           {
             "type": "-",
             "named": false
@@ -1692,6 +1696,10 @@
     "type": "+",
     "named": false
   },
+  {
+    "type": "++",
+    "named": false
+  },
   {
     "type": ",",
     "named": false