Support new attribute shorthand

bindings/node/binding_test.js

@@ -0,0 +1,9 @@
+/// <reference types="node" />
+
+const assert = require("node:assert");
+const { test } = require("node:test");
+
+test("can load grammar", () => {
+  const parser = new (require("tree-sitter"))();
+  assert.doesNotThrow(() => parser.setLanguage(require(".")));
+});

bindings/python/tests/test_binding.py

@@ -0,0 +1,11 @@
+from unittest import TestCase
+
+import tree_sitter, tree_sitter_just
+
+
+class TestLanguage(TestCase):
+    def test_can_load_grammar(self):
+        try:
+            tree_sitter.Language(tree_sitter_just.language())
+        except Exception:
+            self.fail("Error loading Just grammar")

bindings/swift/TreeSitterJustTests/TreeSitterJustTests.swift

@@ -0,0 +1,12 @@
+import XCTest
+import SwiftTreeSitter
+import TreeSitterJust
+
+final class TreeSitterJustTests: XCTestCase {
+    func testCanLoadGrammar() throws {
+        let parser = Parser()
+        let language = Language(language: tree_sitter_just())
+        XCTAssertNoThrow(try parser.setLanguage(language),
+                         "Error loading Just grammar")
+    }
+}

grammar.js

@@ -230,12 +230,8 @@ module.exports = grammar({
         comma_sep1(
           choice(
             $.identifier,
-            seq(
-              $.identifier,
-              "(",
-              field("argument", comma_sep1($.string)),
-              ")",
-            ),
+            seq($.identifier, "(", field("argument", comma_sep1($.string)), ")"),
+            seq($.identifier, ":", field("argument", $.string)),
           ),
         ),
         "]",