DAP GUI

Very early prototype of a general purpose GUI debugger based on the DAP protocol and egui.

recording.mp4

Motivation

This repository exists because I do not like any of the debuggers I (currently) use day to day. I have tried:

• pycharm
• vs code
• neovim dap

They do not feel right to me.

My hope with this project is to create a general purpose GUI on top of the DAP protocol that I like to use.

Features

• fast
• stable
• TBD

Internals

WIP

Code layout and architecture

• transport crate:
  • serialisation and deserialisation of wire protocol
  • send messages with and without responses
  • publish received events
• debugger crate:
  • high level controls like continue
  • breakpoint management
  • initialisation of debugger state
• server crate:
  • abstraction over running DAP servers
• pcaplog crate:
  • print messages from pcap(ng) captures (prototype)
• gui crate:
  • main GUI implementation using egui/eframe
• state crate:
  • handles cross-session state persistence
• launch_configuration crate:
  • represents different launch configration options, e.g. vscode launch.json files

States and transitions

The diagram below represents the different state transitions used by the debugger::Debugger type.

---
title: Debugger states
---

stateDiagram-v2
    [*] --> Initialized: [1]
    Initialized --> Running: [2]
    Running --> Paused: [2]
    Paused --> Running: [3]
    Paused --> ScopeChange: [4]
    ScopeChange --> Paused
    Running --> Terminated: [5]
    Terminated --> [*]

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