20 lines
557 B
TypeScript
20 lines
557 B
TypeScript
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// @declaration: true
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// @filename: child1.ts
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import { ParentThing } from './parent';
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declare module './parent' {
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interface ParentThing {
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add: (a: number, b: number) => number;
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}
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}
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export function child1(prototype: ParentThing) {
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prototype.add = (a: number, b: number) => a + b;
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}
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// @filename: parent.ts
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import { child1 } from './child1'; // this import should still exist in some form in the output, since it augments this module
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export class ParentThing implements ParentThing {}
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child1(ParentThing.prototype);
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