tests/cases/compiler/superPropertyAccess.ts(8,9): error TS1056: Accessors are only available when targeting ECMAScript 5 and higher. tests/cases/compiler/superPropertyAccess.ts(9,9): error TS1056: Accessors are only available when targeting ECMAScript 5 and higher. tests/cases/compiler/superPropertyAccess.ts(22,15): error TS2340: Only public and protected methods of the base class are accessible via the 'super' keyword. tests/cases/compiler/superPropertyAccess.ts(24,9): error TS2341: Property 'p1' is private and only accessible within class 'MyBase'. tests/cases/compiler/superPropertyAccess.ts(26,24): error TS2340: Only public and protected methods of the base class are accessible via the 'super' keyword. tests/cases/compiler/superPropertyAccess.ts(28,24): error TS2340: Only public and protected methods of the base class are accessible via the 'super' keyword. tests/cases/compiler/superPropertyAccess.ts(32,15): error TS2340: Only public and protected methods of the base class are accessible via the 'super' keyword. tests/cases/compiler/superPropertyAccess.ts(34,23): error TS2340: Only public and protected methods of the base class are accessible via the 'super' keyword. ==== tests/cases/compiler/superPropertyAccess.ts (8 errors) ==== class MyBase { m1(a: string) { return a; } private p1() { } m2: () => void = function () { } d1: number = 42; private d2: number = 42; get value() {return 0 } ~~~~~ !!! error TS1056: Accessors are only available when targeting ECMAScript 5 and higher. set value(v: number) { } ~~~~~ !!! error TS1056: Accessors are only available when targeting ECMAScript 5 and higher. } class MyDerived extends MyBase { foo() { super.m1("hi"); // Should be allowed, method on base prototype var l2 = super.m1.bind(this); // Should be allowed, can access properties as well as invoke var x: (a: string) => string = super.m1; // Should be allowed, can assign to var with compatible signature super.m2.bind(this); // Should error, instance property, not a public instance member function ~~ !!! error TS2340: Only public and protected methods of the base class are accessible via the 'super' keyword. super.p1(); // Should error, private not public instance member function ~~~~~~~~ !!! error TS2341: Property 'p1' is private and only accessible within class 'MyBase'. var l1 = super.d1; // Should error, instance data property not a public instance member function ~~ !!! error TS2340: Only public and protected methods of the base class are accessible via the 'super' keyword. var l1 = super.d2; // Should error, instance data property not a public instance member function ~~ !!! error TS2340: Only public and protected methods of the base class are accessible via the 'super' keyword. super.m1 = function (a: string) { return ""; }; // Should be allowed, we will not restrict assignment super.value = 0; // Should error, instance data property not a public instance member function ~~~~~ !!! error TS2340: Only public and protected methods of the base class are accessible via the 'super' keyword. var z = super.value; // Should error, instance data property not a public instance member function ~~~~~ !!! error TS2340: Only public and protected methods of the base class are accessible via the 'super' keyword. } }