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Question

我不认为这是可能的，但考虑到这一点：

接口

import {BrowserService} from "../services/browser/index"; 

export interface IPrimaryNavigation { 
    opts:IPrimaryNavigationOpts; 
} 

export interface IPrimaryNavigationOpts { 
    ... 
    browserService:BrowserService; 
    ... 
} 

类：

import {IPrimaryNavigation, IPrimaryNavigationOpts} from "./interface"; 

export class PrimaryNavigation implements IPrimaryNavigation { 
    public opts:IPrimaryNavigationOpts; 
    ... 
    mounted():void { 
     ... 
     this.listenForBootstrap(this.opts.bsNav, this.opts.browserService); 
    } 
    listenForBootstrap(menuName:string,browserService:<???>):void { 
                 ^^^ here is the problem - 
    // I want to do the equivalent of IPrimaryNavigationOpts.browserService but can't. 
    // I don't think I should have to import the IBrowserService explicitly. 

    } 
} 

怎么办你解决了这个问题。我似乎无法在网上找到任何涉及此类问题的示例。我承认我对这一切都很新颖，所以赞赏。

Answer 1

我们可以再出口使用的东西。因此，“./interface”里面我们可以做（检查最后几行）：

import {BrowserService} from "../services/browser/index"; 

export interface IPrimaryNavigation { 
    opts:IPrimaryNavigationOpts; 
} 

export interface IPrimaryNavigationOpts { 
    ... 
    browserService:BrowserService; 
    ... 
} 
// re-export used interface 
export { BrowserService } 

而现在，我们可以导入甚至型

// we import the re-exported type 
import {IPrimaryNavigation, IPrimaryNavigationOpts 
     BrowserService } from "./interface"; 

export class PrimaryNavigation implements IPrimaryNavigation { 
    public opts:IPrimaryNavigationOpts; 
    ... 
    mounted():void { 
     ... 
     this.listenForBootstrap(this.opts.bsNav, this.opts.browserService); 
    } 
    listenForBootstrap(menuName:string,browserService:BrowserService):void { 
    //listenForBootstrap(menuName:string,browserService:<???>):void { 
    //             ^^^ here is the problem - 
    // I want to do the equivalent of IPrimaryNavigationOpts.browserService but can't. 
    // I don't think I should have to import the IBrowserService explicitly. 

    } 
} 

Answer 2

您可以键入如下：browserService: typeof IPrimaryNavigationOpts.browserService