1 files changed, 46 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/class/elements/private-field-after-optional-chain.js b/js/src/tests/test262/language/statements/class/elements/private-field-after-optional-chain.js
new file mode 100644
index 0000000000..9ed4c44f1b
--- /dev/null
+++ b/js/src/tests/test262/language/statements/class/elements/private-field-after-optional-chain.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-field-after-optional-chain.case
+// - src/class-elements/default/cls-decl.template
+/*---
+description: OptionalChain.PrivateIdentifier is a valid syntax (field definitions in a class declaration)
+esid: prod-FieldDefinition
+features: [class-fields-private, optional-chaining, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    OptionalChain[Yield, Await] :
+      `?.` `[` Expression[+In, ?Yield, ?Await] `]`
+      `?.` IdentifierName
+      `?.` Arguments[?Yield, ?Await]
+      `?.` TemplateLiteral[?Yield, ?Await, +Tagged]
+      OptionalChain[?Yield, ?Await]  `[` Expression[+In, ?Yield, ?Await] `]`
+      OptionalChain[?Yield, ?Await] `.` IdentifierName
+      OptionalChain[?Yield, ?Await] Arguments[?Yield, ?Await]
+      OptionalChain[?Yield, ?Await] TemplateLiteral[?Yield, ?Await, +Tagged]
+      OptionalChain[?Yield, ?Await] `.` PrivateIdentifier
+
+---*/
+
+
+class C {
+  #f = 'Test262';
+
+  method(o) {
+    return o?.c.#f;
+  }
+}
+
+let c = new C();
+let o = {c: c};
+assert.sameValue(c.method(o), 'Test262');
+
+assert.sameValue(c.method(null), undefined);
+assert.sameValue(c.method(undefined), undefined);
+
+o = {c: new Object()};
+assert.throws(TypeError, function() {
+  c.method(o);
+}, 'accessed private field from an ordinary object');
+
+reportCompare(0, 0);