├── .github └── workflows │ └── style-check.yml ├── .gitignore ├── .luacheckrc ├── .stylua.toml ├── LICENSE.txt ├── README.md ├── lua ├── nvim-dap-virtual-text.lua └── nvim-dap-virtual-text │ └── virtual_text.lua ├── scripts └── style-check.sh └── test_cases └── issue_36_value_not_updated.py /.github/workflows/style-check.yml: -------------------------------------------------------------------------------- 1 | name: Linting and style checking 2 | 3 | on: [push, pull_request] 4 | 5 | jobs: 6 | luacheck: 7 | name: Luacheck 8 | runs-on: ubuntu-latest 9 | steps: 10 | - uses: actions/checkout@v3 11 | 12 | - name: Prepare 13 | run: | 14 | sudo apt-get update 15 | sudo add-apt-repository universe 16 | sudo apt install luarocks -y 17 | sudo luarocks install luacheck 18 | 19 | - name: Run Luacheck 20 | run: sudo ./scripts/style-check.sh 21 | 22 | stylua: 23 | name: StyLua 24 | runs-on: ubuntu-latest 25 | steps: 26 | - uses: actions/checkout@v3 27 | - name: Lint with stylua 28 | uses: JohnnyMorganz/stylua-action@v2 29 | with: 30 | token: ${{ secrets.GITHUB_TOKEN }} 31 | version: latest 32 | args: --check . 33 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | .luacheckcache 2 | -------------------------------------------------------------------------------- /.luacheckrc: -------------------------------------------------------------------------------- 1 | -- Rerun tests only if their modification time changed. 2 | cache = true 3 | 4 | -- Glorious list of warnings: https://luacheck.readthedocs.io/en/stable/warnings.html 5 | ignore = { 6 | "212", -- Unused argument, In the case of callback function, _arg_name is easier to understand than _, so this option is set to off. 7 | "411", -- Redefining a local variable. 8 | "412", -- Redefining an argument. 9 | "421", -- Shadowing a variable 10 | "422", -- Shadowing an argument 11 | "431", -- Shadowing a variable 12 | "122" -- Indirectly setting a readonly global 13 | } 14 | 15 | -- Global objects defined by the C code 16 | read_globals = { 17 | "vim", 18 | } 19 | -------------------------------------------------------------------------------- /.stylua.toml: -------------------------------------------------------------------------------- 1 | indent_type = "Spaces" 2 | indent_width = 2 3 | no_call_parentheses = true 4 | quote_style = "AutoPreferSingle" 5 | -------------------------------------------------------------------------------- /LICENSE.txt: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # nvim-dap-virtual-text 2 | 3 | This plugin adds virtual text support to [nvim-dap](https://github.com/mfussenegger/nvim-dap). 4 | [nvim-treesitter](https://github.com/nvim-treesitter/nvim-treesitter) is used to find variable definitions. 5 | 6 | ```vim 7 | Plug 'mfussenegger/nvim-dap' 8 | Plug 'nvim-treesitter/nvim-treesitter', {'do': ':TSUpdate'} 9 | Plug 'theHamsta/nvim-dap-virtual-text' 10 | ``` 11 | 12 | > [!NOTE] 13 | > 14 | > With Neovim 0.9 and above, `nvim-treesitter` is not hard a dependency. 15 | > This plugin only needs the parsers for the languages you want to use it with 16 | > and `locals.scm` queries defining references and definitions of variables 17 | > (typically provided by nvim-treesitter). 18 | 19 | The hlgroup for the virtual text is `NvimDapVirtualText` (linked to `Comment`). 20 | Exceptions that caused the debugger to stop are displayed as `NvimDapVirtualTextError` 21 | (linked to `DiagnosticVirtualTextError`). Changed and new variables will be highlighted with 22 | `NvimDapVirtualTextChanged` (default linked to `DiagnosticVirtualTextWarn`). 23 | 24 | The behavior of this plugin can be activated and controlled via a `setup` call 25 | 26 | ```lua 27 | require("nvim-dap-virtual-text").setup() 28 | ``` 29 | 30 | Wrap this call with `lua < 4 | -- 5 | -- Distributed under terms of the GPLv3 license. 6 | -- 7 | local M = {} 8 | 9 | local dap = require 'dap' 10 | 11 | local plugin_id = 'nvim-dap-virtual-text' 12 | 13 | ---@class VariablePresentationHint 14 | ---@field kind 'property' | 'method' | 'class' | 'data' | 'event' | 'baseClass' | 'innerClass' | 'interface' 15 | --- | 'mostDerivedClass' 16 | --- | 'virtual' 17 | --- | 'dataBreakpoint' 18 | --- | string 19 | --- | nil 20 | ---@field attributes ('static' | 'constant' | 'readOnly' | 'rawString' | 'hasObjectId' | 'canHaveObjectId' 21 | --- | 'hasSideEffects' 22 | --- | 'hasDataBreakpoint' 23 | --- | string)[] | nil 24 | ---@field visibility 'public' | 'private' | 'protected' | 'internal' | 'final' | string | nil 25 | ---@field lazy boolean|nil 26 | 27 | --- @class Variable 28 | --- @field name string 29 | --- @field value string 30 | --- @field type string|nil 31 | --- @field presentationHint VariablePresentationHint|nil 32 | --- @field evaluateName string|nil 33 | --- @field variablesReference number 34 | --- @field namedVariables number|nil 35 | --- @field indexedVariables number|nil 36 | --- @field memoryReference string|nil 37 | 38 | ---@class nvim_dap_virtual_text_options 39 | local options = { 40 | -- enable this plugin (the default) 41 | enabled = true, 42 | -- create commands `DapVirtualTextEnable`, `DapVirtualTextDisable`, `DapVirtualTextToggle`, 43 | -- (`DapVirtualTextForceRefresh` for refreshing when debug adapter did not notify its termination) 44 | enable_commands = true, 45 | -- show virtual text for all stack frames not only current. Only works for debugpy on my machine. 46 | all_frames = false, 47 | -- prefix virtual text with comment string 48 | commented = false, 49 | -- highlight changed values with `NvimDapVirtualTextChanged`, else always `NvimDapVirtualText` 50 | highlight_changed_variables = true, 51 | -- highlight new variables in the same way as changed variables (if highlight_changed_variables) 52 | highlight_new_as_changed = false, 53 | -- show stop reason when stopped for exceptions 54 | show_stop_reason = true, 55 | -- only show virtual text at first definition (if there are multiple) 56 | only_first_definition = true, 57 | -- show virtual text on all all references of the variable (not only definitions) 58 | all_references = false, 59 | -- clear virtual text on "continue" (might cause flickering when stepping) 60 | clear_on_continue = false, 61 | text_prefix = '', 62 | separator = ',', 63 | error_prefix = ' ', 64 | info_prefix = ' ', 65 | -- position of virtual text, see `:h nvim_buf_set_extmark()` 66 | virt_text_pos = vim.fn.has 'nvim-0.10' == 1 and 'inline' or 'eol', 67 | -- show virtual lines instead of virtual text (will flicker!) 68 | virt_lines = false, 69 | virt_lines_above = true, 70 | -- position the virtual text at a fixed window column (starting from the first text column) , 71 | -- e.g. `80` to position at column `80`, see `:h nvim_buf_set_extmark()` 72 | virt_text_win_col = nil, 73 | -- filter references (not definitions) pattern when `all_references` is activated 74 | -- (Lua gmatch pattern, default filters out Python modules) 75 | --- @deprecated Use display_callback instead with nil return value instead! 76 | filter_references_pattern = ' 4 | -- 5 | -- Distributed under terms of the GPLv3 license. 6 | -- 7 | 8 | local M = {} 9 | 10 | local api = vim.api 11 | 12 | local ts = vim.treesitter 13 | local tsq = ts.query 14 | 15 | local is_in_node_range 16 | if vim.treesitter.is_in_node_range then 17 | is_in_node_range = vim.treesitter.is_in_node_range 18 | else 19 | local _, ts_utils = pcall(require, 'nvim-treesitter.ts_utils') 20 | is_in_node_range = ts_utils.is_in_node_range 21 | end 22 | 23 | local hl_namespace = api.nvim_create_namespace 'nvim-dap-virtual-text' 24 | local error_set 25 | local info_set 26 | ---@type dap.StackFrame|nil 27 | local stopped_frame 28 | ---@type dap.StackFrame[] 29 | local last_frames = {} 30 | 31 | local function variables_from_scopes(scopes, lang) 32 | local variables = {} 33 | 34 | scopes = scopes or {} 35 | for _, s in ipairs(scopes) do 36 | if s.variables then 37 | for _, v in pairs(s.variables) do 38 | local key = lang == 'php' and v.name:gsub('^%$', '') or v.name 39 | -- prefer "locals" 40 | if not variables[key] or variables[key].presentationHint ~= 'locals' then 41 | variables[key] = { value = v, presentationHint = s.presentationHint } 42 | end 43 | end 44 | end 45 | end 46 | return variables 47 | end 48 | 49 | local function get_query(lang, query_name) 50 | return (tsq.get or tsq.get_query)(lang, query_name) 51 | end 52 | 53 | ---@class Scope 54 | ---@field name string 55 | ---@field presentationHint 'arguments' | 'locals' | 'registers' | string | nil 56 | ---@field variablesReference number 57 | ---@field namedVariables number|nil 58 | ---@field indexedVariables number|nil 59 | ---@field expensive boolean 60 | ---@field source dap.Source|nil 61 | ---@field line number|nil 62 | ---@field column number|nil 63 | ---@field endLine number|nil 64 | ---@field endColumn number|nil 65 | --- nvim-dap internal 66 | ---@field variables table 67 | 68 | ---@class dap.StackFrame 69 | --- nvim-dap internal 70 | ---@field scopes Scope[] 71 | 72 | ---@param stackframe dap.StackFrame 73 | ---@param options nvim_dap_virtual_text_options 74 | function M.set_virtual_text(stackframe, options) 75 | if not stackframe then 76 | return 77 | end 78 | if not stackframe.scopes then 79 | return 80 | end 81 | if not stackframe.source then 82 | return 83 | end 84 | if not stackframe.source.path then 85 | return 86 | end 87 | local buf = vim.fn.bufnr(stackframe.source.path, false) 88 | if buf == -1 then 89 | buf = vim.uri_to_bufnr(vim.uri_from_fname(stackframe.source.path)) 90 | end 91 | local parser 92 | local lang 93 | local ft = vim.bo[buf].ft 94 | if ft == '' then 95 | ft = vim.filetype.match { buf = buf } or '' 96 | if ft == '' then 97 | return 98 | end 99 | end 100 | if vim.treesitter.get_parser and vim.treesitter.language and vim.treesitter.language.get_lang then 101 | lang = vim.treesitter.language.get_lang(ft) 102 | if not lang then 103 | return 104 | end 105 | local ok 106 | ok, parser = pcall(vim.treesitter.get_parser, buf, lang) 107 | if not ok then 108 | return 109 | end 110 | else 111 | local require_ok, parsers = pcall(require, 'nvim-treesitter.parsers') 112 | if not require_ok then 113 | return 114 | end 115 | lang = parsers.get_buf_lang(buf) 116 | if not lang then 117 | return 118 | end 119 | local ok 120 | ok, parser = pcall(parsers.get_parser, buf, lang) 121 | if not ok then 122 | return 123 | end 124 | end 125 | 126 | local scope_nodes = {} 127 | local definition_nodes = {} 128 | 129 | if not parser then 130 | return 131 | end 132 | parser:parse() 133 | parser:for_each_tree(function(tree, ltree) 134 | local query = get_query(ltree:lang(), 'locals') 135 | if query then 136 | for _, match, _ in query:iter_matches(tree:root(), buf, 0, -1) do 137 | for id, nodes in pairs(match) do 138 | if type(nodes) ~= 'table' then 139 | nodes = { nodes } 140 | end 141 | for _, node in ipairs(nodes) do 142 | local cap_id = query.captures[id] 143 | if cap_id:find('scope', 1, true) then 144 | table.insert(scope_nodes, node) 145 | elseif cap_id:find('definition', 1, true) then 146 | table.insert(definition_nodes, node) 147 | elseif options.all_references and cap_id:find('reference', 1, true) then 148 | table.insert(definition_nodes, node) 149 | end 150 | end 151 | end 152 | end 153 | end 154 | end) 155 | 156 | local variables = variables_from_scopes(stackframe.scopes) 157 | 158 | local scopes = stackframe.scopes or {} 159 | for _, s in ipairs(scopes) do 160 | if s.variables then 161 | for _, v in pairs(s.variables) do 162 | local key = lang == 'php' and v.name:gsub('^%$', '') or v.name 163 | -- prefer "locals" 164 | if not variables[key] or variables[key].presentationHint ~= 'locals' then 165 | variables[key] = { value = v, presentationHint = s.presentationHint } 166 | end 167 | end 168 | end 169 | end 170 | 171 | local inline = options.virt_text_pos == 'inline' 172 | local last_scopes = last_frames[stackframe.id] and last_frames[stackframe.id].scopes or {} 173 | local last_variables = variables_from_scopes(last_scopes) 174 | 175 | local virt_lines = {} 176 | 177 | local node_ids = {} 178 | for _, node in pairs(definition_nodes) do 179 | if node then 180 | local get_node_text = vim.treesitter.get_node_text or vim.treesitter.query.get_node_text 181 | local name = get_node_text(node, buf) 182 | local var_line, var_col = node:start() 183 | 184 | local evaluated = variables[name] 185 | evaluated = evaluated and evaluated.value 186 | local last_value = last_variables[name] 187 | last_value = last_value and last_value.value 188 | if 189 | evaluated 190 | ---@diagnostic disable-next-line: deprecated 191 | and not (options.filter_references_pattern and evaluated.value:find(options.filter_references_pattern)) 192 | then -- evaluated local with same name exists 193 | -- is this name really the local or is it in another scope? 194 | local in_scope = true 195 | for _, scope in ipairs(scope_nodes) do 196 | if is_in_node_range(scope, var_line, var_col) and not is_in_node_range(scope, stackframe.line - 1, 0) then 197 | in_scope = false 198 | break 199 | end 200 | end 201 | 202 | if in_scope then 203 | if options.only_first_definition and not options.all_references then 204 | variables[name] = nil 205 | end 206 | if not node_ids[node:id()] then 207 | node_ids[node:id()] = true 208 | local has_changed = options.highlight_changed_variables 209 | and (evaluated.value ~= (last_value and last_value.value)) 210 | and (options.highlight_new_as_changed or last_value) 211 | local text = options.display_callback(evaluated, buf, stackframe, node, options) 212 | if text then 213 | if options.commented then 214 | text = vim.o.commentstring:gsub('%%s', { ['%s'] = text }) 215 | end 216 | text = options.text_prefix .. text 217 | 218 | if virt_lines[node:start()] then 219 | if options.virt_lines then 220 | text = ' ' .. options.separator .. text 221 | end 222 | else 223 | virt_lines[node:start()] = {} 224 | end 225 | table.insert(virt_lines[node:start()], { 226 | text, 227 | has_changed and 'NvimDapVirtualTextChanged' or 'NvimDapVirtualText', 228 | node = node, 229 | }) 230 | end 231 | end 232 | end 233 | end 234 | end 235 | end 236 | 237 | for line, content in pairs(virt_lines) do 238 | -- Filtering necessary with all_references: there can be more than on reference on one line 239 | if options.all_references then 240 | local avoid_duplicates = {} 241 | content = vim.tbl_filter(function(c) 242 | local text = c[1] 243 | local was_duplicate = avoid_duplicates[text] 244 | avoid_duplicates[text] = true 245 | return not was_duplicate 246 | end, content) 247 | end 248 | if options.virt_lines then 249 | for _, virt_text in ipairs(content) do 250 | virt_text.node = nil 251 | end 252 | vim.api.nvim_buf_set_extmark( 253 | buf, 254 | hl_namespace, 255 | line, 256 | 0, 257 | { virt_lines = { content }, virt_lines_above = options.virt_lines_above } 258 | ) 259 | else 260 | local line_text = api.nvim_buf_get_lines(buf, line, line + 1, true)[1] 261 | local win_col = math.max(options.virt_text_win_col or 0, #line_text + 1) 262 | for i, virt_text in ipairs(content) do 263 | local node_range = { virt_text.node:range() } 264 | if i < #content and not inline then 265 | virt_text[1] = virt_text[1] .. options.separator 266 | end 267 | virt_text.node = nil 268 | vim.api.nvim_buf_set_extmark(buf, hl_namespace, node_range[inline and 3 or 1], node_range[inline and 4 or 2], { 269 | end_line = node_range[3], 270 | end_col = node_range[4], 271 | hl_mode = 'combine', 272 | virt_text = { virt_text }, 273 | virt_text_pos = options.virt_text_pos, 274 | virt_text_win_col = options.virt_text_win_col and win_col, 275 | }) 276 | win_col = win_col + #virt_text[1] + 1 277 | end 278 | end 279 | end 280 | 281 | if stopped_frame and stopped_frame.line and stopped_frame.source and stopped_frame.source.path then 282 | local buf = vim.uri_to_bufnr(vim.uri_from_fname(stopped_frame.source.path)) 283 | if error_set then 284 | local error_msg = error_set 285 | if options.commented then 286 | error_msg = vim.o.commentstring:gsub('%%s', { ['%s'] = error_set }) 287 | end 288 | pcall(api.nvim_buf_set_extmark, buf, hl_namespace, stopped_frame.line - 1, 0, { 289 | hl_mode = 'combine', 290 | virt_text = { { error_msg, 'NvimDapVirtualTextError' } }, 291 | virt_text_pos = inline and 'eos' or options.virt_text_pos, 292 | }) 293 | end 294 | if info_set then 295 | local info_msg = info_set 296 | if options.commented then 297 | info_msg = vim.o.commentstring:gsub('%%s', { ['%s'] = info_set }) 298 | end 299 | pcall(api.nvim_buf_set_extmark, buf, hl_namespace, stopped_frame.line - 1, 0, { 300 | hl_mode = 'combine', 301 | virt_text = { { info_msg, 'NvimDapVirtualTextInfo' } }, 302 | virt_text_pos = inline and 'eos' or options.virt_text_pos, 303 | }) 304 | end 305 | end 306 | end 307 | 308 | ---@param options nvim_dap_virtual_text_options 309 | function M.set_info(message, options) 310 | info_set = options.info_prefix .. message 311 | end 312 | 313 | ---@param frame dap.StackFrame 314 | function M.set_stopped_frame(frame) 315 | stopped_frame = frame 316 | end 317 | 318 | ---@param options nvim_dap_virtual_text_options 319 | function M.set_error(response, options) 320 | if response then 321 | local exception_type = response.details and response.details.typeName 322 | local message = options.error_prefix 323 | .. (exception_type or '') 324 | .. (response.description and ((exception_type and ': ' or '') .. response.description) or '') 325 | error_set = message 326 | end 327 | end 328 | 329 | function M._on_continue(options) 330 | error_set = nil 331 | info_set = nil 332 | stopped_frame = nil 333 | 334 | if type(options) == 'table' and options.clear_on_continue then 335 | M.clear_virtual_text() 336 | end 337 | end 338 | 339 | ---@param stackframe dap.StackFrame|nil 340 | function M.clear_virtual_text(stackframe) 341 | if stackframe then 342 | local buf = vim.uri_to_bufnr(vim.uri_from_fname(stackframe.source.path)) 343 | api.nvim_buf_clear_namespace(buf, hl_namespace, 0, -1) 344 | else 345 | for _, buf in ipairs(api.nvim_list_bufs()) do 346 | api.nvim_buf_clear_namespace(buf, hl_namespace, 0, -1) 347 | end 348 | end 349 | end 350 | 351 | ---@param threads dap.Thread[] 352 | function M.set_last_frames(threads) 353 | for _, t in pairs(threads or {}) do 354 | for _, f in pairs(t.frames or {}) do 355 | if f and f.id then 356 | last_frames[f.id] = f 357 | end 358 | end 359 | end 360 | end 361 | 362 | function M.clear_last_frames() 363 | last_frames = {} 364 | end 365 | 366 | return M 367 | -------------------------------------------------------------------------------- /scripts/style-check.sh: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | 3 | luacheck `find -name "*.lua"` --codes 4 | -------------------------------------------------------------------------------- /test_cases/issue_36_value_not_updated.py: -------------------------------------------------------------------------------- 1 | # See Issue #36: Value not updated after changing the value of a parameter 2 | 3 | from operator import itemgetter 4 | 5 | 6 | class Solution: 7 | def twoSum(self, nums: list[int], target: int) -> list[int]: 8 | if len(nums) < 2: 9 | return nums 10 | 11 | arr = list(sorted(enumerate(nums), key=itemgetter(1))) 12 | i = 0 13 | j = len(nums) - 1 14 | 15 | while i < j: 16 | arri = arr[i] 17 | arrj = arr[j] 18 | sum_ = arri[1] + arrj[1] 19 | if sum_ == target: 20 | return [arri[0], arrj[0]] 21 | elif sum_ > target: 22 | j -= 1 23 | else: 24 | i += 1 25 | return [] 26 | 27 | arr = [2, 7, 11, 15] 28 | target = 9 29 | 30 | Solution().twoSum(arr, target) == [0, 1] 31 | --------------------------------------------------------------------------------