From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 21:33:14 +0200
Subject: Adding upstream version 115.7.0esr.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../short-circuit-compound-assignment-const.js     | 90 ++++++++++++++++++++++
 1 file changed, 90 insertions(+)
 create mode 100644 js/src/tests/non262/expressions/short-circuit-compound-assignment-const.js

(limited to 'js/src/tests/non262/expressions/short-circuit-compound-assignment-const.js')

diff --git a/js/src/tests/non262/expressions/short-circuit-compound-assignment-const.js b/js/src/tests/non262/expressions/short-circuit-compound-assignment-const.js
new file mode 100644
index 0000000000..8499e2fb74
--- /dev/null
+++ b/js/src/tests/non262/expressions/short-circuit-compound-assignment-const.js
@@ -0,0 +1,90 @@
+// Test assignment to const and function name bindings. The latter is kind of a
+// const binding, but only throws in strict mode.
+
+function notEvaluated() {
+  throw new Error("should not be evaluated");
+}
+
+// AndAssignExpr with const lexical binding.
+{
+  const a = false;
+  a &&= notEvaluated();
+  assertEq(a, false);
+
+  const b = true;
+  assertThrowsInstanceOf(() => { b &&= 1; }, TypeError);
+  assertEq(b, true);
+}
+
+// AndAssignExpr with function name binding.
+{
+  let f = function fn() {
+    fn &&= true;
+    assertEq(fn, f);
+  };
+  f();
+
+  let g = function fn() {
+    "use strict";
+    assertThrowsInstanceOf(() => { fn &&= 1; }, TypeError);
+    assertEq(fn, g);
+  };
+  g();
+}
+
+// OrAssignExpr with const lexical binding.
+{
+  const a = true;
+  a ||= notEvaluated();
+  assertEq(a, true);
+
+  const b = false;
+  assertThrowsInstanceOf(() => { b ||= 0; }, TypeError);
+  assertEq(b, false);
+}
+
+// OrAssignExpr with function name binding.
+{
+  let f = function fn() {
+    fn ||= notEvaluated();
+    assertEq(fn, f);
+  };
+  f();
+
+  let g = function fn() {
+    "use strict";
+    fn ||= notEvaluated();
+    assertEq(fn, g);
+  };
+  g();
+}
+
+// CoalesceAssignExpr with const lexical binding.
+{
+  const a = true;
+  a ??= notEvaluated();
+  assertEq(a, true);
+
+  const b = null;
+  assertThrowsInstanceOf(() => { b ??= 0; }, TypeError);
+  assertEq(b, null);
+}
+
+// CoalesceAssignExpr with function name binding.
+{
+  let f = function fn() {
+    fn ??= notEvaluated();
+    assertEq(fn, f);
+  };
+  f();
+
+  let g = function fn() {
+    "use strict";
+    fn ??= notEvaluated();
+    assertEq(fn, g);
+  };
+  g();
+}
+
+if (typeof reportCompare === "function")
+  reportCompare(0, 0);
-- 
cgit v1.2.3