91 lines
2.4 KiB
TypeScript
91 lines
2.4 KiB
TypeScript
//// [overload1.ts]
|
|
module O {
|
|
export class A {
|
|
|
|
}
|
|
|
|
export class B extends A {
|
|
}
|
|
|
|
export class C extends B {
|
|
|
|
}
|
|
|
|
export interface I {
|
|
f(s:string):number;
|
|
f(n:number):string;
|
|
g(n1:number,n2:number):number;
|
|
g(n:number):string;
|
|
g(a:A):C;
|
|
g(c:C):string;
|
|
h(s1:string,s2:number):string;
|
|
h(s1:number,s2:string):number;
|
|
}
|
|
}
|
|
|
|
declare var x:O.I;
|
|
|
|
var e:string=x.g(new O.A()); // matches overload but bad assignment
|
|
var y:string=x.f(3); // good
|
|
y=x.f("nope"); // can't assign number to string
|
|
var z:string=x.g(x.g(3,3)); // good
|
|
z=x.g(2,2,2); // no match
|
|
z=x.g(); // no match
|
|
z=x.g(new O.B()); // ambiguous (up and down conversion)
|
|
z=x.h(2,2); // no match
|
|
z=x.h("hello",0); // good
|
|
|
|
var v=x.g;
|
|
|
|
|
|
|
|
//// [overload1.js]
|
|
var __extends = (this && this.__extends) || (function () {
|
|
var extendStatics = function (d, b) {
|
|
extendStatics = Object.setPrototypeOf ||
|
|
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
|
|
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
|
|
return extendStatics(d, b);
|
|
};
|
|
return function (d, b) {
|
|
extendStatics(d, b);
|
|
function __() { this.constructor = d; }
|
|
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
|
|
};
|
|
})();
|
|
var O;
|
|
(function (O) {
|
|
var A = /** @class */ (function () {
|
|
function A() {
|
|
}
|
|
return A;
|
|
}());
|
|
O.A = A;
|
|
var B = /** @class */ (function (_super) {
|
|
__extends(B, _super);
|
|
function B() {
|
|
return _super !== null && _super.apply(this, arguments) || this;
|
|
}
|
|
return B;
|
|
}(A));
|
|
O.B = B;
|
|
var C = /** @class */ (function (_super) {
|
|
__extends(C, _super);
|
|
function C() {
|
|
return _super !== null && _super.apply(this, arguments) || this;
|
|
}
|
|
return C;
|
|
}(B));
|
|
O.C = C;
|
|
})(O || (O = {}));
|
|
var e = x.g(new O.A()); // matches overload but bad assignment
|
|
var y = x.f(3); // good
|
|
y = x.f("nope"); // can't assign number to string
|
|
var z = x.g(x.g(3, 3)); // good
|
|
z = x.g(2, 2, 2); // no match
|
|
z = x.g(); // no match
|
|
z = x.g(new O.B()); // ambiguous (up and down conversion)
|
|
z = x.h(2, 2); // no match
|
|
z = x.h("hello", 0); // good
|
|
var v = x.g;
|