DAP support C#

The easy way: Using dotnet

This is only available if your project has a .csproj file. Compiling with the options Build and run dotnet or Build dotnet will automatically generate the necessary runtimeconfig.json file. So the only thing you have to insert a breakpoint, open DAP, go to your executable directory and select the .dll file that has been generated there.

For more info on this step see DAP wiki.

Alternative: For regular C# projects

Create a .solution file in your working directory. Then pass the -debug parameter to the compiler like this

[HELLO WORLD]
entry_point="/path/to/my/entry_point_file/main.c"
output="/path/where/the/program/will/be/written/hello_world"
parameters="-debug"

After compiling your program you will see the file <your_exe_name>.pdb beside your executable. This proves you are compiling in debug mode.

How to setup DAP to debug with C#

Please note that this section has nothing to do with compiler.nvim. I'm documenting this to make your life easier. To debug C# with DAP you have to:

• Install the package netcoredbg in your system
• Setup DAP for C#
• Create the file <your_exe_name>.runtimeconfig.json in your executable directory. For example if your program is Program.exe, name it Program.runtimeconfig.json.

{
    "runtimeOptions": {
        "configProperties": {
            "System.GC.Server": true,
            "System.GC.Concurrent": true,
            "System.Threading.ThreadPool.MinThreads": 1,
            "System.Threading.ThreadPool.MaxThreads": 1
        },
        "tfm": "netcoreapp2.1",
        "framework": {
            "name": "Microsoft.NETCore.App",
            "version": "7.0.9"
        },
        "applyPatches": true,
        "rollForwardOnNoCandidateFx": 1
    }
}

But instead of version 7.0.9, use the Microsoft.NETCore.App version you have installed in your system. On Arch Linux you can check the directory /usr/share/dotnet/shared/Microsoft.NETCore.App/ to discover it.

How to check if everything works

Compile your program, add a break point to your code, and then run DAP. You will see something like this.

Congratulations, now you can compile and debug C#.

Troubleshooting

• If you find any issue while configuring DAP, run :DapSetLogLevel trace and :DapShowLog to find the reason.