The run-time takes 5+ seconds to respond to Debugger.enable

一覧にある template-master-detail プロジェクトで、Android Pixel 上で tns debug android --start を使って遅延を再現します。runtime が Debugger.enable、scriptParsed、Debugger.setBreakpointByUrl をどのように処理するかを追跡します。デバッガーの初期化とプリセットされたブレークポイントの設定が、5 秒のタイムアウトなしに完了すれば完了です。

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The run-time takes 5+ seconds to respond to Debugger.enable

Please provide the following version numbers that your issue occurs with:

• CLI: 3.3.1

Please tell us how to recreate the issue in as much detail as possible.

This is reproducible with:
https://github.com/NativeScript/template-master-detail-ts
https://github.com/NativeScript/template-master-detail-ng
https://github.com/NativeScript/template-master-detail-kinvey

against an Android Pixel.

clone https://github.com/NativeScript/template-master-detail-ts

cd template-master-detail-ts
tns platform add android
tns debug android --start

After receiving the Debugger.enable request the run-time would trigger scriptParsed events for all sources in the project (500+ files) first and only then would respond to the Debugger.enable request.

Starting a debug session against any of the listed projects would time out as the JavaScript debugger (Microsoft implementation) in Visual Studio has a non-configurable 5 second timeout on all requests.

In {N} Sidekick the debug session would not timeout but it would still take more than 5 seconds to initialize.

Please note that after receiving a response to Debugger.enable the JavaScript debugger in Visual Studio would start sending Debugger.setBreakpointByUrl for all pre-set breakpoints (again 5s timeout) and if the run-time does not respond to a request the breakpoint would remain inactive.