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var g_foo = "foo";
var g_bar = "bar";
// Define base class with a read-only and a writable data property
class Base
{
}
Object.defineProperty(Base.prototype, "foo", { value: "Base", writable: true });
Object.defineProperty(Base.prototype, "bar", { value: "Base", writable: false });
// Test various cases that should throw during SETPROP_SUPER
class Derived extends Base
{
// ECMA-2018 9.1.9.1, step 4.a
testReadonly() {
super.bar = "Derived";
}
testReadonlyElem() {
super[g_bar] = "Derived";
}
// ECMA-2018 9.1.9.1, step 4.b
testPrimitiveReceiver() {
super.foo = "Derived";
}
testPrimitiveReceiverElem() {
super[g_foo] = "Derived";
}
// ECMA-2018 9.1.9.1, step 4.d.i
testAccessorShadow() {
Object.defineProperty(this, "foo", { get: function() { } });
super.foo = "Derived";
}
testAccessorShadowElem() {
Object.defineProperty(this, "foo", { get: function() { } });
super[g_foo] = "Derived";
}
// ECMA-2018 9.1.9.1, step 4.d.ii
testReadonlyShadow() {
Object.defineProperty(this, "foo", { writable: false });
super.foo = "Derived";
}
testReadonlyShadowElem() {
Object.defineProperty(this, "foo", { writable: false });
super[g_foo] = "Derived";
}
}
for (let i = 0; i < 10; ++i) {
var cnt = 0;
try { new Derived().testReadonly(); } catch(e) { cnt++; }
try { new Derived().testReadonlyElem(); } catch(e) { cnt++; }
try { Derived.prototype.testPrimitiveReceiver.call(null); } catch(e) { cnt++; }
try { Derived.prototype.testPrimitiveReceiverElem.call(null); } catch(e) { cnt++; }
try { new Derived().testAccessorShadow(); } catch(e) { cnt++; }
try { new Derived().testAccessorShadowElem(); } catch(e) { cnt++; }
try { new Derived().testReadonlyShadow(); } catch(e) { cnt++; }
try { new Derived().testReadonlyShadowElem(); } catch(e) { cnt++; }
assertEq(cnt, 8);
}
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