feat: add support for dynamic class constant fetch

tree-sitter · Jan 25, 2024 · fab0c75 · fab0c75
1 parent 5a779d3
commit fab0c75
Show file tree

Hide file tree

Showing 6 changed files with 129,099 additions and 128,284 deletions.
diff --git a/common/define-grammar.js b/common/define-grammar.js
@@ -942,7 +942,11 @@ module.exports = function defineGrammar(dialect) {
       class_constant_access_expression: $ => seq(
         $._scope_resolution_qualifier,
         '::',
-        choice($.name, alias($._reserved_identifier, $.name)),
+        choice(
+          $.name,
+          alias($._reserved_identifier, $.name),
+          seq('{', alias($._expression, $.name), '}'),
+        ),
       ),
 
       print_intrinsic: $ => seq(

diff --git a/common/test/corpus/expressions.txt b/common/test/corpus/expressions.txt
@@ -1543,3 +1543,18 @@ $statement = match ($a) {
   )
 )
 
+===============================================
+Dynamic class constant access
+===============================================
+
+<?php
+Foo::{$bar};
+
+---
+
+(program
+  (php_tag)
+  (expression_statement
+    (class_constant_access_expression
+      (name)
+      (name (variable_name (name))))))
diff --git a/php/src/grammar.json b/php/src/grammar.json
@@ -4881,6 +4881,28 @@
               },
               "named": true,
               "value": "name"
+            },
+            {
+              "type": "SEQ",
+              "members": [
+                {
+                  "type": "STRING",
+                  "value": "{"
+                },
+                {
+                  "type": "ALIAS",
+                  "content": {
+                    "type": "SYMBOL",
+                    "name": "_expression"
+                  },
+                  "named": true,
+                  "value": "name"
+                },
+                {
+                  "type": "STRING",
+                  "value": "}"
+                }
+              ]
             }
           ]
         }