40 lines
872 B
TypeScript
40 lines
872 B
TypeScript
// @module: commonjs
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// @noImplicitReferences: true
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// @filename: node_modules/math2d/index.d.ts
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export as namespace Math2d;
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export interface Point {
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x: number;
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y: number;
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}
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export class Vector implements Point {
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x: number;
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y: number;
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constructor(x: number, y: number);
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translate(dx: number, dy: number): Vector;
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}
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export function getLength(p: Vector): number;
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// @filename: math2d-augment.d.ts
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import * as Math2d from 'math2d';
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// Augment the module
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declare module 'math2d' {
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// Add a method to the class
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interface Vector {
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reverse(): Math2d.Point;
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}
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}
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// @filename: a.ts
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/// <reference path="node_modules/math2d/index.d.ts" />
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/// <reference path="math2d-augment.d.ts" />
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let v = new Math2d.Vector(3, 2);
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let magnitude = Math2d.getLength(v);
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let p: Math2d.Point = v.translate(5, 5);
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p = v.reverse();
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var t = p.x;
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