grammar: support map updates

Author: leostera

docs/tree-sitter-erlang.wasm

@@ -69,6 +69,7 @@ const PREC = {
   MODULE_DECLARATION: 8,
   FUNCTION_CLAUSE: 7,
   FUNCTION_NAME: 5,
+  EXPR_MAP_UPDATE: 9,
   PARENTHESIZED_EXPRESSION: 6,
   EXPR_LIST_CONS: 5,
   EXPRESSION: 4,
@@ -176,6 +177,7 @@ module.exports = grammar({
 
     _expression: ($) =>
       choice(
+        $.expr_map_update,
         $.expr_try,
         $.expr_catch,
         $.expr_throw,
@@ -196,6 +198,9 @@ module.exports = grammar({
         $.match
       ),
 
+    expr_map_update: ($) =>
+      prec.left(PREC.EXPR_MAP_UPDATE, seq($.expression, $.map)),
+
     expr_try: ($) =>
       seq(
         "try",

grammar.js

@@ -505,6 +505,10 @@
     "_expression": {
       "type": "CHOICE",
       "members": [
+        {
+          "type": "SYMBOL",
+          "name": "expr_map_update"
+        },
         {
           "type": "SYMBOL",
           "name": "expr_try"
@@ -579,6 +583,23 @@
         }
       ]
     },
+    "expr_map_update": {
+      "type": "PREC_LEFT",
+      "value": 9,
+      "content": {
+        "type": "SEQ",
+        "members": [
+          {
+            "type": "SYMBOL",
+            "name": "expression"
+          },
+          {
+            "type": "SYMBOL",
+            "name": "map"
+          }
+        ]
+      }
+    },
     "expr_try": {
       "type": "SEQ",
       "members": [

src/grammar.json

@@ -475,6 +475,25 @@
       ]
     }
   },
+  {
+    "type": "expr_map_update",
+    "named": true,
+    "fields": {},
+    "children": {
+      "multiple": true,
+      "required": true,
+      "types": [
+        {
+          "type": "expression",
+          "named": true
+        },
+        {
+          "type": "map",
+          "named": true
+        }
+      ]
+    }
+  },
   {
     "type": "expr_operator",
     "named": true,
@@ -840,6 +859,10 @@
           "type": "expr_list_comprehension",
           "named": true
         },
+        {
+          "type": "expr_map_update",
+          "named": true
+        },
         {
           "type": "expr_operator",
           "named": true
@@ -1783,11 +1806,11 @@
   },
   {
     "type": "float",
-    "named": false
+    "named": true
   },
   {
     "type": "float",
-    "named": true
+    "named": false
   },
   {
     "type": "fun",