Method clone

modules/core/src/lifecycle/component.ts:45–63

(newProps: Partial<PropsT>)

  // clone this layer with modified props
  clone(newProps: Partial<PropsT>) {
    const {props} = this;

    // Async props cannot be copied with Object.assign, copy them separately
    const asyncProps: Partial<PropsT> = {};

    // See async props definition in create-props.js
    for (const key in props[ASYNC_DEFAULTS_SYMBOL]) {
      if (key in props[ASYNC_RESOLVED_SYMBOL]) {
        asyncProps[key] = props[ASYNC_RESOLVED_SYMBOL][key];
      } else if (key in props[ASYNC_ORIGINAL_SYMBOL]) {
        asyncProps[key] = props[ASYNC_ORIGINAL_SYMBOL][key];
      }
    }

    // Some custom layer implementation may not support multiple arguments in the constructor
    // @ts-ignore
    return new this.constructor({...props, ...asyncProps, ...newProps});
  }
}