summaryrefslogtreecommitdiffstats
path: root/js/src/jit-test/tests/cacheir/bug1651732-proxy-hasOwn.js
diff options
context:
space:
mode:
Diffstat (limited to 'js/src/jit-test/tests/cacheir/bug1651732-proxy-hasOwn.js')
-rw-r--r--js/src/jit-test/tests/cacheir/bug1651732-proxy-hasOwn.js24
1 files changed, 24 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/cacheir/bug1651732-proxy-hasOwn.js b/js/src/jit-test/tests/cacheir/bug1651732-proxy-hasOwn.js
new file mode 100644
index 0000000000..90f94a4e48
--- /dev/null
+++ b/js/src/jit-test/tests/cacheir/bug1651732-proxy-hasOwn.js
@@ -0,0 +1,24 @@
+// An object with a custom [Symbol.toPrimitive] function.
+var key = {
+ value: "a",
+
+ [Symbol.toPrimitive]() {
+ return this.value;
+ }
+};
+
+var target = {
+ a: 0,
+ [Symbol.iterator]: 0,
+};
+var obj = new Proxy(target, {});
+
+for (var i = 0; i < 100; ++i) {
+ // Change key[Symbol.toPrimitive] to return a symbol after some warm-up.
+ if (i > 80) {
+ key.value = Symbol.iterator;
+ }
+
+ // Attach an IC for JSOp::HasOwn on proxies.
+ assertEq(Object.prototype.hasOwnProperty.call(obj, key), true);
+}