Skip to main content

07 Dap for Rust

1 Environment​

  • OS: MacOS
  • Neovim: 0.9.5
  • Rust: 1.76.0
  • Neovim framework: Astronvim

2 Install the associated plugin for rust dap​

~/.config/nvim/lua/user/plugins/mason.lua
-- ... Other code above ...
 {
   "jay-babu/mason-nvim-dap.nvim",
   opts = function(_, opts)
     opts.ensure_installed = require("astronvim.utils").list_insert_unique(
      opts.ensure_installed, 
      {
       "codelldb",
       "cpptools",
     }
    )
   end,
 },

3 Install system dependencies​

$ brew install llvm
$ ln -s $(brew --prefix)/opt/llvm/bin/lldb-vscode $(brew --prefix)/bin/ # <-- Link the lldb-vscode to the bin directory
$ brew install codelldb

4 To use the dap config from the project​

~/.config/nvim/lua/user/plugins/dap-projects.lua
return {
 {
   "ldelossa/nvim-dap-projects",
 },
}
~/.config/nvim/lua/user/init.lua
return {
  -- ... Other code above ...
  polish = function()
    require("nvim-dap-projects").search_project_config()
  end,
}

and then, reopen the project, and the pluginldelossa/nvim-dap-projects will be installed automatically.

5 Setup a project configuration file​

5.1 Initialize a project name hello-world​

$ cargo new hello-world
$ cd hello-world

5.2 Add a new dap config file in the project root directory​

.nvim/nvim-dap.lua
local dap = require("dap")

dap.adapters.codelldb = {
        type = "server",
        port = "${port}",
        executable = {
                command = os.getenv("XDG_DATA_HOME") .. "/nvim/mason/bin/codelldb",
                args = { "--port", "${port}" },
        },
}

dap.configurations.rust = {
        {
                name = "Launch file",
                type = "codelldb",
                request = "launch",
                program = function()
                        vim.fn.system("cargo build")
                        return vim.fn.getcwd() .. "/target/debug/hello-world"
                end,
                cwd = "${workspaceFolder}",
                stopOnEntry = false,
        },
}

6 Start the debug​

Open the hello-world project,and add the breakpoint in the src/main.rs file, and then press the <leader>dc to start the debug. the flowing dap pane will be trigger in vim, like:

7 Reference​

Debugging Rust with NeoVim