创建自定义提供者

🌐 Creating custom providers

const { VirtualProvider } = require('node:vfs');

class StaticProvider extends VirtualProvider {
  get readonly() { return true; }

  statSync(path) { /* ... */ }
  openSync(path, flags) { /* ... */ }
  readdirSync(path, options) { /* ... */ }
  // ...
} 拷贝

基类会对任何未被重写的原始类型抛出 ERR_METHOD_NOT_IMPLEMENTED，并且拒绝来自 readonly 提供者的 EROFS 写入。

🌐 The base class throws ERR_METHOD_NOT_IMPLEMENTED for any primitive that has not been overridden, and rejects writes from a readonly provider with EROFS.