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// Copyright (C) 2014 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 14.5
description: >
class default constructor 2
---*/
class Base1 { }
assert.throws(TypeError, function() { Base1(); });
class Subclass1 extends Base1 { }
assert.throws(TypeError, function() { Subclass1(); });
var s1 = new Subclass1();
assert.sameValue(
Subclass1.prototype,
Object.getPrototypeOf(s1),
"The value of `Subclass1.prototype` is `Object.getPrototypeOf(s1)`, after executing `var s1 = new Subclass1();`"
);
class Base2 {
constructor(x, y) {
this.x = x;
this.y = y;
}
}
class Subclass2 extends Base2 {};
var s2 = new Subclass2(1, 2);
assert.sameValue(
Subclass2.prototype,
Object.getPrototypeOf(s2),
"The value of `Subclass2.prototype` is `Object.getPrototypeOf(s2)`, after executing `var s2 = new Subclass2(1, 2);`"
);
assert.sameValue(s2.x, 1, "The value of `s2.x` is `1`");
assert.sameValue(s2.y, 2, "The value of `s2.y` is `2`");
var f = Subclass2.bind({}, 3, 4);
var s2prime = new f();
assert.sameValue(
Subclass2.prototype,
Object.getPrototypeOf(s2prime),
"The value of `Subclass2.prototype` is `Object.getPrototypeOf(s2prime)`"
);
assert.sameValue(s2prime.x, 3, "The value of `s2prime.x` is `3`");
assert.sameValue(s2prime.y, 4, "The value of `s2prime.y` is `4`");
var obj = {};
class Base3 {
constructor() {
return obj;
}
}
class Subclass3 extends Base3 {};
var s3 = new Subclass3();
assert.sameValue(s3, obj, "The value of `s3` is `obj`");
reportCompare(0, 0);