Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 83 insertions, 0 deletions

diff --git a/js/src/tests/non262/class/superPropProxies.js b/js/src/tests/non262/class/superPropProxies.js
new file mode 100644
index 0000000000..3ec43b279c
--- /dev/null
+++ b/js/src/tests/non262/class/superPropProxies.js
@@ -0,0 +1,83 @@
+class base {
+    constructor() { }
+}
+
+let midStaticHandler = { };
+
+// We shouldn't use the |this.called| strategy here, since we have proxies
+// snooping property accesses.
+let getterCalled, setterCalled;
+
+class mid extends new Proxy(base, midStaticHandler) {
+    constructor() { super(); }
+    testSuperInProxy() {
+        super.prop = "looking";
+        assertEq(setterCalled, true);
+        assertEq(super.prop, "found");
+        assertEq(getterCalled, true);
+    }
+}
+
+class child extends mid {
+    constructor() { super(); }
+    static testStaticLookups() {
+        // This funtion is called more than once.
+        this.called = false;
+        super.prop;
+        assertEq(this.called, true);
+    }
+}
+
+let midInstance = new mid();
+
+// Make sure proxies are searched properly on the prototype chain
+let baseHandler = {
+    get(target, p, receiver) {
+        assertEq(receiver, midInstance);
+        getterCalled = true;
+        return "found";
+    },
+
+    set(t,p,val,receiver) {
+        assertEq(receiver, midInstance);
+        assertEq(val, "looking");
+        setterCalled = true;
+        return true;
+    }
+}
+Object.setPrototypeOf(base.prototype, new Proxy(Object.prototype, baseHandler));
+
+// make sure subclasses are not searched on static or super lookups.
+let childHandler = {
+    get() { throw "NO!"; },
+    set() { throw "NO!"; }
+}
+Object.setPrototypeOf(child.prototype, new Proxy(mid.prototype, childHandler));
+
+midInstance.testSuperInProxy();
+
+// Don't do this earlier to avoid the lookup of .prototype during class creation
+function midGet(target, p, receiver) {
+    assertEq(receiver, child);
+    receiver.called = true;
+}
+midStaticHandler.get = midGet;
+
+child.testStaticLookups();
+
+// Hey does super work in a proxy?
+assertEq(new Proxy(({ method() { return super.hasOwnProperty("method"); } }), {}).method(), true);
+
+// What about a CCW?
+var g = newGlobal();
+var wrappedSuper = g.eval("({ method() { return super.hasOwnProperty('method'); } })");
+assertEq(wrappedSuper.method(), true);
+
+// With a CCW on the proto chain?
+var wrappedBase = g.eval("({ method() { return this.__secretProp__; } })");
+var unwrappedDerived = { __secretProp__: 42, method() { return super.method(); } }
+Object.setPrototypeOf(unwrappedDerived, wrappedBase);
+assertEq(unwrappedDerived.method(), 42);
+
+if (typeof reportCompare === 'function')
+    reportCompare(0,0,"OK");