1 files changed, 100 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/call-construct-hook.js b/js/src/jit-test/tests/basic/call-construct-hook.js
new file mode 100644
index 0000000000..ed6cb23e01
--- /dev/null
+++ b/js/src/jit-test/tests/basic/call-construct-hook.js
@@ -0,0 +1,100 @@
+// Tests for invoking JSClass call/construct hooks.
+
+function testBasic() {
+    let obj = {fun: newObjectWithCallHook()};
+    for (var i = 0; i < 1000; i++) {
+        let res = obj.fun(1, 2, 3);
+        assertEq(res.this, obj);
+        assertEq(res.callee, obj.fun);
+        assertEq(JSON.stringify(res.arguments), "[1,2,3]");
+        assertEq(res.newTarget, undefined);
+
+        res = new obj.fun(1, 2, 3);
+        assertEq(res.this, "<is_constructing>");
+        assertEq(res.callee, obj.fun);
+        assertEq(JSON.stringify(res.arguments), "[1,2,3]");
+        assertEq(res.newTarget, obj.fun);
+    }
+}
+testBasic();
+
+function testSpread() {
+    let obj = {fun: newObjectWithCallHook()};
+    for (var i = 0; i < 1000; i++) {
+        let res = obj.fun(...[1, 2, 3]);
+        assertEq(res.this, obj);
+        assertEq(res.callee, obj.fun);
+        assertEq(JSON.stringify(res.arguments), "[1,2,3]");
+        assertEq(res.newTarget, undefined);
+
+        res = new obj.fun(...[1, 2, 3]);
+        assertEq(res.this, "<is_constructing>");
+        assertEq(res.callee, obj.fun);
+        assertEq(JSON.stringify(res.arguments), "[1,2,3]");
+        assertEq(res.newTarget, obj.fun);
+    }
+}
+testSpread();
+
+function testNewTarget() {
+    let obj = newObjectWithCallHook();
+    let newTargetVal = function() {};
+    for (var i = 0; i < 1000; i++) {
+        let res = Reflect.construct(obj, [], newTargetVal);
+        assertEq(res.this, "<is_constructing>");
+        assertEq(res.callee, obj);
+        assertEq(res.arguments.length, 0);
+        assertEq(res.newTarget, newTargetVal);
+    }
+}
+testNewTarget();
+
+function testRealmSwitch() {
+    // We currently switch to the callable's realm for class hook calls (similar to
+    // JS function calls). This might change at some point, but for now assert the
+    // returned object's realm matches that of the callee.
+
+    let g = newGlobal({sameCompartmentAs: this});
+    let obj = g.newObjectWithCallHook();
+    assertEq(objectGlobal(obj), g);
+
+    for (var i = 0; i < 1000; i++) {
+        let res = obj(1, 2);
+        assertEq(objectGlobal(res), g);
+        assertEq(res.this, undefined);
+        assertEq(res.callee, obj);
+        assertEq(JSON.stringify(res.arguments), "[1,2]");
+
+        res = new obj(1, 2);
+        assertEq(objectGlobal(res), g);
+        assertEq(res.this, "<is_constructing>");
+        assertEq(res.callee, obj);
+        assertEq(JSON.stringify(res.arguments), "[1,2]");
+        assertEq(res.newTarget, obj);
+    }
+}
+testRealmSwitch();
+
+function testCrossCompartmentWrapper() {
+    // Call/construct hooks can be called through cross-compartment wrappers.
+
+    let g = newGlobal({newCompartment: true});
+    let obj = g.newObjectWithCallHook();
+    assertEq(isProxy(obj), true); // It's a CCW.
+
+    for (var i = 0; i < 1000; i++) {
+        let res = obj(1, 2);
+        assertEq(isProxy(res), true);
+        assertEq(res.this, undefined);
+        assertEq(res.callee, obj);
+        assertEq(JSON.stringify(res.arguments), "[1,2]");
+
+        res = new obj(1, 2);
+        assertEq(isProxy(res), true);
+        assertEq(res.this, "<is_constructing>");
+        assertEq(res.callee, obj);
+        assertEq(JSON.stringify(res.arguments), "[1,2]");
+        assertEq(res.newTarget, obj);
+    }
+}
+testCrossCompartmentWrapper();