1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
//// [classAbstractUsingAbstractMethod1.ts]
abstract class A {
abstract foo() : number;
}
class B extends A {
foo() { return 1; }
}
abstract class C extends A {
abstract foo() : number;
}
var a = new B;
a.foo();
a = new C; // error, cannot instantiate abstract class.
a.foo();
//// [classAbstractUsingAbstractMethod1.js]
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
var A = (function () {
function A() {
}
return A;
}());
var B = (function (_super) {
__extends(B, _super);
function B() {
return _super !== null && _super.apply(this, arguments) || this;
}
B.prototype.foo = function () { return 1; };
return B;
}(A));
var C = (function (_super) {
__extends(C, _super);
function C() {
return _super !== null && _super.apply(this, arguments) || this;
}
return C;
}(A));
var a = new B;
a.foo();
a = new C; // error, cannot instantiate abstract class.
a.foo();
|
