Merge pull request #144 from afroozeh/main

Make the 'else' part explicit in parse trees

Author: fwcd

grammar.js

@@ -829,16 +829,16 @@ module.exports = grammar({
 
     if_expression: $ => prec.right(seq(
       "if",
-      "(", $._expression, ")",
+      "(", field('condition', $._expression), ")",
       choice(
-        $.control_structure_body,
-        ";",
+        field('consequence', $.control_structure_body),
         seq(
-          optional($.control_structure_body),
+          optional(field('consequence', $.control_structure_body)),
           optional(";"),
-          "else",
-          choice($.control_structure_body, ";")
-        )
+          "else", 
+          choice(field('alternative', $.control_structure_body), ";")
+        ),
+        ";"
       )
     )),
 

src/grammar.json

@@ -4245,8 +4245,12 @@
             "value": "("
           },
           {
-            "type": "SYMBOL",
-            "name": "_expression"
+            "type": "FIELD",
+            "name": "condition",
+            "content": {
+              "type": "SYMBOL",
+              "name": "_expression"
+            }
           },
           {
             "type": "STRING",
@@ -4256,12 +4260,12 @@
             "type": "CHOICE",
             "members": [
               {
-                "type": "SYMBOL",
-                "name": "control_structure_body"
-              },
-              {
-                "type": "STRING",
-                "value": ";"
+                "type": "FIELD",
+                "name": "consequence",
+                "content": {
+                  "type": "SYMBOL",
+                  "name": "control_structure_body"
+                }
               },
               {
                 "type": "SEQ",
@@ -4270,8 +4274,12 @@
                     "type": "CHOICE",
                     "members": [
                       {
-                        "type": "SYMBOL",
-                        "name": "control_structure_body"
+                        "type": "FIELD",
+                        "name": "consequence",
+                        "content": {
+                          "type": "SYMBOL",
+                          "name": "control_structure_body"
+                        }
                       },
                       {
                         "type": "BLANK"
@@ -4298,8 +4306,12 @@
                     "type": "CHOICE",
                     "members": [
                       {
-                        "type": "SYMBOL",
-                        "name": "control_structure_body"
+                        "type": "FIELD",
+                        "name": "alternative",
+                        "content": {
+                          "type": "SYMBOL",
+                          "name": "control_structure_body"
+                        }
                       },
                       {
                         "type": "STRING",
@@ -4308,6 +4320,10 @@
                     ]
                   }
                 ]
+              },
+              {
+                "type": "STRING",
+                "value": ";"
               }
             ]
           }