153 lines
3 KiB
TypeScript
153 lines
3 KiB
TypeScript
//// [optionalMethods.ts]
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interface Foo {
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a: number;
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b?: number;
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f(): number;
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g?(): number;
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}
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function test1(x: Foo) {
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x.a;
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x.b;
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x.f;
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x.g;
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let f1 = x.f();
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let g1 = x.g && x.g();
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let g2 = x.g ? x.g() : 0;
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}
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class Bar {
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a: number;
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b?: number;
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c? = 2;
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constructor(public d?: number, public e = 10) {}
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f() {
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return 1;
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}
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g?(): number; // Body of optional method can be omitted
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h?() {
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return 2;
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}
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}
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function test2(x: Bar) {
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x.a;
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x.b;
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x.c;
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x.d;
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x.e;
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x.f;
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x.g;
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let f1 = x.f();
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let g1 = x.g && x.g();
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let g2 = x.g ? x.g() : 0;
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let h1 = x.h && x.h();
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let h2 = x.h ? x.h() : 0;
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}
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class Base {
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a?: number;
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f?(): number;
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}
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class Derived extends Base {
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a = 1;
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f(): number { return 1; }
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}
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//// [optionalMethods.js]
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var __extends = (this && this.__extends) || (function () {
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var extendStatics = Object.setPrototypeOf ||
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({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
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function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
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return function (d, b) {
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extendStatics(d, b);
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function __() { this.constructor = d; }
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d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
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};
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})();
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function test1(x) {
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x.a;
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x.b;
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x.f;
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x.g;
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var f1 = x.f();
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var g1 = x.g && x.g();
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var g2 = x.g ? x.g() : 0;
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}
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var Bar = /** @class */ (function () {
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function Bar(d, e) {
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if (e === void 0) { e = 10; }
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this.d = d;
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this.e = e;
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this.c = 2;
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}
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Bar.prototype.f = function () {
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return 1;
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};
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Bar.prototype.h = function () {
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return 2;
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};
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return Bar;
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}());
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function test2(x) {
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x.a;
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x.b;
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x.c;
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x.d;
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x.e;
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x.f;
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x.g;
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var f1 = x.f();
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var g1 = x.g && x.g();
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var g2 = x.g ? x.g() : 0;
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var h1 = x.h && x.h();
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var h2 = x.h ? x.h() : 0;
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}
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var Base = /** @class */ (function () {
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function Base() {
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}
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return Base;
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}());
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var Derived = /** @class */ (function (_super) {
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__extends(Derived, _super);
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function Derived() {
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var _this = _super !== null && _super.apply(this, arguments) || this;
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_this.a = 1;
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return _this;
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}
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Derived.prototype.f = function () { return 1; };
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return Derived;
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}(Base));
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//// [optionalMethods.d.ts]
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interface Foo {
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a: number;
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b?: number;
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f(): number;
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g?(): number;
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}
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declare function test1(x: Foo): void;
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declare class Bar {
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d: number | undefined;
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e: number;
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a: number;
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b?: number;
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c?: number | undefined;
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constructor(d?: number | undefined, e?: number);
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f(): number;
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g?(): number;
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h?(): number;
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}
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declare function test2(x: Bar): void;
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declare class Base {
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a?: number;
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f?(): number;
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}
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declare class Derived extends Base {
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a: number;
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f(): number;
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}
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