TS2345错误，但参数应该没问题？

Question

所以我有这个错误：

TS2345: Argument of type '(bounds: any, fill: any, stroke: any, strokewidth: any) => mxShape' is not assignable to parameter of type 'new (...args: any) => mxShape'. 
Type '(bounds: any, fill: any, stroke: any, strokewidth: any) => mxShape' provides no match for the signature 'new (...args: any): mxShape'.

根据我的理解，new (...args: any): mxShape 应该足以满足给定的要求，但 Typescript 表示，它不适合它。为什么？

我的 MxHeaderShape 是这样构建的：

     function MxHeaderFooterShape(bounds, fill, stroke, strokewidth) : mxShape{
        let val = mxShape.call(this);
        this.bounds = bounds;
        this.fill = fill;
        this.stroke = stroke;
        this.strokewidth = (strokewidth != null) ? strokewidth : 1;
        return val;
    }

Answer 1

您似乎想创建一个扩展 mxShape 的 MxHeaderFooterShape class。假设你正在使用typed-mxgraph，你可以使用这种方式做

import mx from './mxgraph'; // mxGraphExportObject returned by the mxgraph factory function
import type { mxRectangle } from 'mxgraph';


class CustomMxShape extends mx.mxShape {

  constructor(bounds: mxRectangle, fill: string, stroke: string, strokewidth?: number) {
    super(bounds, fill, stroke, strokewidth);
  }

}

您还可以查看此演示：https://github.com/typed-mxgraph/typed-mxgraph-example-bundled-with-webpack/blob/7f0bf757aedb12cec84d86b4c4e4cbcb0f7a8147/src/app/custom-shapes.ts

TS2345错误，但参数应该没问题？

TS2345 error, but the arguments should be ok?

javascript

mxgraph

typescript