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function base() { this.prop = 42; }
class testInitialize extends base {
constructor() {
// A poor man's assertThrowsInstanceOf, as arrow functions are currently
// disabled in this context
try {
this;
throw new Error();
} catch (e) {
if (!(e instanceof ReferenceError))
throw e;
}
super();
assertEq(this.prop, 42);
}
}
assertEq(new testInitialize().prop, 42);
// super() twice is a no-go.
class willThrow extends base {
constructor() {
super();
super();
}
}
assertThrowsInstanceOf(()=>new willThrow(), ReferenceError);
// This is determined at runtime, not the syntax level.
class willStillThrow extends base {
constructor() {
for (let i = 0; i < 3; i++) {
super();
}
}
}
assertThrowsInstanceOf(()=>new willStillThrow(), ReferenceError);
class canCatchThrow extends base {
constructor() {
super();
try { super(); } catch(e) { }
}
}
assertEq(new canCatchThrow().prop, 42);
if (typeof reportCompare === 'function')
reportCompare(0,0,"OK");