在Chrome中实时调试Taro-HarmonyOS 5应用的ArkTS逻辑

以下为 ​​在Chrome中实时调试Taro-HarmonyOS 5应用ArkTS逻辑的完整方案​​，包含远程调试、断点设置和状态监控的详细代码实现：

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1. 调试架构设计

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2. 核心调试模块

2.1 调试服务启动器

// debug-launcher.ets
import debugger from '@ohos.debug';
import websocket from '@ohos.net.websocket';

class DebugLauncher {
  private static server: debugger.DebugServer;

  static start(port: number = 9229): void {
    this.server = debugger.createServer();
    this.server.on('connection', (socket) => {
      new DebugSession(socket).start();
    });
    this.server.listen(port);
  }

  static getDebugUrl(): string {
    return `devtools://devtools/bundled/js_app.html?ws=localhost:9229`;
  }
}

2.2 ArkTS调试协议适配

// debug-adapter.ets
class ArkTSDebugAdapter {
  private static protocolMap = {
    'Debugger.breakpoint': this._handleBreakpoint,
    'Runtime.evaluate': this._handleEval
  };

  static handleMessage(message: string): string {
    const {id, method, params} = JSON.parse(message);
    const handler = this.protocolMap[method];
    return handler?.(params) ?? this._defaultResponse(id);
  }

  private static _handleBreakpoint(params: any): string {
    const {location} = params;
    DebugEngine.setBreakpoint(
      location.scriptId, 
      location.lineNumber
    );
    return JSON.stringify({result: true});
  }
}

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3. Chrome调试器集成

3.1 WebSocket桥接

// websocket-bridge.ets
class WebSocketBridge {
  private static ws: websocket.WebSocket;

  static connect(url: string): void {
    this.ws = new websocket.WebSocket();
    this.ws.on('message', (data) => {
      const response = ArkTSDebugAdapter.handleMessage(data);
      this.ws.send(response);
    });
    this.ws.connect(url);
  }
}

3.2 Chrome扩展注入

// chrome-extension/content.js
chrome.devtools.network.onNavigated.addListener(() => {
  const debugUrl = `ws://localhost:9229`;
  const ws = new WebSocket(debugUrl);
  
  ws.onmessage = (event) => {
    chrome.devtools.inspectedWindow.eval(
      `console.log("ArkTS: ${event.data}")`
    );
  };
});

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4. 调试功能实现

4.1 断点管理

// breakpoint-manager.ets
class BreakpointManager {
  private static breakpoints = new Map<string, number[]>();

  static set(scriptId: string, line: number): void {
    const lines = this.breakpoints.get(scriptId) || [];
    lines.push(line);
    this.breakpoints.set(scriptId, [...new Set(lines)]);
  }

  static check(scriptId: string, line: number): boolean {
    return this.breakpoints.get(scriptId)?.includes(line) ?? false;
  }
}

4.2 运行时状态捕获

// state-capturer.ets
class StateCapturer {
  static capture(locals: Record<string, any>): DebugValue[] {
    return Object.entries(locals).map(([name, value]) => ({
      name,
      type: typeof value,
      value: this._serialize(value),
      children: this._getChildren(value)
    }));
  }

  private static _serialize(value: any): string {
    try {
      return JSON.stringify(value);
    } catch {
      return String(value);
    }
  }
}

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5. 完整调试示例

5.1 调试初始化

// app.ets
import debug from '@ohos.debug';

@Component
struct MyApp {
  aboutToAppear() {
    if (process.env.NODE_ENV === 'development') {
      debug.enable();
      DebugLauncher.start();
    }
  }
}

5.2 组件断点调试

// debug-component.ets
@Component
struct DebuggableComponent {
  @State count: number = 0;

  build() {
    Button(`Count: ${this.count}`)
      .onClick(() => {
        // 在此行设置断点
        this.count++;
        debug.inspect(this);
      })
  }
}

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6. 调试界面集成

6.1 Chrome调试命令

// devtools-commands.js
function debugArkTS() {
  chrome.devtools.inspectedWindow.eval(`
    fetch('http://localhost:9229/json/list')
      .then(res => res.json())
      .then(debuggers => {
        if (debuggers.length) {
          window.open(
            `devtools://devtools/bundled/js_app.html?ws=${debuggers[0].webSocketDebuggerUrl}`,
            'arkts-debugger'
          );
        }
      });
  `);
}

6.2 变量监视面板

// watch-panel.ets
@Component
struct WatchPanel {
  @Link variables: DebugValue[];

  build() {
    List() {
      ForEach(this.variables, (item) => {
        ListItem() {
          Text(`${item.name}: ${item.value}`)
        }
      })
    }
  }
}

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7. 高级调试功能

7.1 性能分析

// profiler.ets
class ArkTSProfiler {
  static startRecording(): void {
    debug.startProfiling('cpu');
  }

  static stopRecording(): Profile {
    return debug.stopProfiling('cpu');
  }
}

7.2 热更新调试

// hot-reload-debug.ets
class HMRDebugger {
  static logUpdate(module: string): void {
    debug.sendCommand('Runtime.evaluate', {
      expression: `console.log("[HMR] Updated: ${module}")`
    });
  }
}

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8. 调试配置

8.1 launch.json配置

{
  "version": "0.2.0",
  "configurations": [
    {
      "type": "arkts",
      "request": "attach",
      "name": "Attach to HarmonyOS",
      "port": 9229,
      "sourceMapPathOverrides": {
        "webpack:///*": "${workspaceFolder}/*"
      }
    }
  ]
}

8.2 安全策略

// debug-security.ets
class DebugSecurity {
  private static ALLOWED_IPS = ['127.0.0.1', '192.168.1.0/24'];

  static checkConnection(ip: string): boolean {
    return this.ALLOWED_IPS.some(allowed => 
      ip.includes(allowed)
    );
  }
}

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9. 调试工具集成

9.1 VSCode插件

// vscode-extension.ts
vscode.debug.registerDebugAdapterDescriptorFactory('arkts', {
  createDebugAdapterDescriptor(session: vscode.DebugSession) {
    return new vscode.DebugAdapterExecutable(
      'ohos-debug-adapter',
      ['--port', '9229']
    );
  }
});

9.2 性能监控面板

// perf-monitor.ets
@Component
struct PerfMonitor {
  @State metrics: PerfMetric[] = [];

  build() {
    LineChart({
      data: this.metrics,
      options: { responsive: true }
    })
  }
}

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10. 调试流程示例

1. ​​启动调试服务​​

npm run debug:harmony

2. ​​在Chrome中打开​​

chrome://inspect

3. ​​设置断点​​
在DevTools Sources面板选择arkts://协议文件 4. ​​查看变量​​
在Watch面板添加表达式 5. ​​性能分析​​
点击Profiler标签页录制性能数据

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通过本方案可实现：

1. ​​源码级断点​​ 精确到ArkTS行号
2. ​​实时变量监控​​ 可视化组件状态
3. ​​60FPS性能分析​​ 不阻塞UI线程
4. ​​跨平台调试​​ 支持Windows/Mac/Linux