├── .github └── FUNDING.yml ├── .gitignore ├── LICENSE ├── README.md ├── after └── plugin │ └── cmp_treesitter.lua └── lua └── cmp_treesitter ├── init.lua ├── lru.lua └── treesitter.lua /.github/FUNDING.yml: -------------------------------------------------------------------------------- 1 | # These are supported funding model platforms 2 | 3 | github: ray-x 4 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Compiled Lua sources 2 | luac.out 3 | 4 | # luarocks build files 5 | *.src.rock 6 | *.zip 7 | *.tar.gz 8 | 9 | # Object files 10 | *.o 11 | *.os 12 | *.ko 13 | *.obj 14 | *.elf 15 | 16 | # Precompiled Headers 17 | *.gch 18 | *.pch 19 | 20 | # Libraries 21 | *.lib 22 | *.a 23 | *.la 24 | *.lo 25 | *.def 26 | *.exp 27 | 28 | # Shared objects (inc. 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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 | # cmp-treesitter 2 | 3 | nvim-cmp source for treesitter nodes. Using all treesitter highlight nodes as completion candicates. 4 | LRU cache is used to improve performance. 5 | 6 | # Setup 7 | 8 | ```lua 9 | require'cmp'.setup { 10 | sources = { 11 | { name = 'treesitter' } 12 | } 13 | } 14 | ``` 15 | 16 | # Screenshot 17 | 18 | treesitter_cmp 19 | Screen Shot 2021-10-24 at 1 00 29 pm 20 | -------------------------------------------------------------------------------- /after/plugin/cmp_treesitter.lua: -------------------------------------------------------------------------------- 1 | require'cmp'.register_source('treesitter', require'cmp_treesitter'.new()) 2 | -------------------------------------------------------------------------------- /lua/cmp_treesitter/init.lua: -------------------------------------------------------------------------------- 1 | local treesitter = require('cmp_treesitter.treesitter') 2 | 3 | local defaults = { 4 | keyword_pattern = [[\%(-\?\d\+\%(\.\d\+\)\?\|\h\w*\%([\-]\w*\)*\)]], 5 | get_bufnrs = function() 6 | return { vim.api.nvim_get_current_buf() } 7 | end, 8 | } 9 | 10 | local source = {} 11 | 12 | source.new = function() 13 | local self = setmetatable({}, { __index = source }) 14 | self.treesitters = {} 15 | return self 16 | end 17 | 18 | source.get_keyword_pattern = function(_, params) 19 | params.option = params.option or {} 20 | params.option = vim.tbl_deep_extend('keep', params.option, defaults) 21 | vim.validate({ 22 | keyword_pattern = { 23 | params.option.keyword_pattern, 24 | 'string', 25 | '`opts.keyword_pattern` must be `string`', 26 | }, 27 | get_bufnrs = { params.option.get_bufnrs, 'function', '`opts.get_bufnrs` must be `function`' }, 28 | }) 29 | return params.option.keyword_pattern 30 | end 31 | 32 | local function trim(s) 33 | s = s:match('^%s*(.-)%s*$') 34 | return s:match('^%p*(.-)%p*$') 35 | end 36 | 37 | source.complete = function(self, params, callback) 38 | params.option = vim.tbl_deep_extend('keep', params.option, defaults) 39 | vim.validate({ 40 | keyword_pattern = { 41 | params.option.keyword_pattern, 42 | 'string', 43 | '`opts.keyword_pattern` must be `string`', 44 | }, 45 | get_bufnrs = { params.option.get_bufnrs, 'function', '`opts.get_bufnrs` must be `function`' }, 46 | }) 47 | 48 | local processing = true 49 | local buf_ts = self:_get_treesitters(params) 50 | 51 | local input = string.sub(params.context.cursor_before_line, params.offset) 52 | local items = {} 53 | local words = {} 54 | 55 | for _, ts in pairs(buf_ts) do 56 | local async_ts = ts:async_get() 57 | -- note : coroutine does not help with multitasking 58 | local flg, tsnds = coroutine.resume(async_ts) 59 | -- print('f', flg) 60 | if flg and tsnds.words ~= nil then 61 | for _, word in ipairs(tsnds.words) do 62 | if not words[word.word] and input ~= word then 63 | words[word.word] = true 64 | local w = word.word 65 | if #w > 25 then 66 | w = string.sub(w, 1, 25) .. '…' 67 | end 68 | local camel_cased_kind = word.kind:gsub("%.", " "):gsub("(%w)(%w*)", function(first, rest) return first:upper() .. rest:lower() end):gsub(" ", "") 69 | table.insert(items, { 70 | label = w, 71 | insertText = word.word, 72 | dup = 0, 73 | cmp = { kind_text = camel_cased_kind, kind_hl_group = '@' .. word.kind } 74 | }) 75 | end 76 | end 77 | end 78 | end 79 | processing = true 80 | -- print("items", vim.inspect(items)) 81 | callback({ items = items, isIncomplete = processing }) 82 | end 83 | 84 | --- _get_treesitters 85 | source._get_treesitters = function(self, params) 86 | for _, bufnr in ipairs(params.option.get_bufnrs()) do 87 | local new_treesitter = treesitter.new(bufnr) 88 | self.treesitters[bufnr] = new_treesitter 89 | end 90 | return self.treesitters 91 | end 92 | 93 | return source 94 | -------------------------------------------------------------------------------- /lua/cmp_treesitter/lru.lua: -------------------------------------------------------------------------------- 1 | -- lua-lru, LRU cache in Lua 2 | -- Copyright (c) 2015 Boris Nagaev 3 | -- See the LICENSE file for terms of use. 4 | --[[ 5 | 6 | The MIT License (MIT) 7 | 8 | Copyright (c) 2015 Boris Nagaev 9 | 10 | Permission is hereby granted, free of charge, to any person obtaining a copy 11 | of this software and associated documentation files (the "Software"), to deal 12 | in the Software without restriction, including without limitation the rights 13 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 14 | copies of the Software, and to permit persons to whom the Software is 15 | furnished to do so, subject to the following conditions: 16 | 17 | The above copyright notice and this permission notice shall be included in all 18 | copies or substantial portions of the Software. 19 | 20 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 21 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 22 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 23 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 24 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 25 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 26 | SOFTWARE. 27 | 28 | ]] -- 29 | local lru = {} 30 | 31 | function lru.new(max_size, max_bytes) 32 | 33 | assert(max_size >= 1, "max_size must be >= 1") 34 | assert(not max_bytes or max_bytes >= 1, "max_bytes must be >= 1") 35 | 36 | -- current size 37 | local size = 0 38 | local bytes_used = 0 39 | 40 | -- map is a hash map from keys to tuples 41 | -- tuple: value, prev, next, key 42 | -- prev and next are pointers to tuples 43 | local map = {} 44 | 45 | -- indices of tuple 46 | local VALUE = 1 47 | local PREV = 2 48 | local NEXT = 3 49 | local KEY = 4 50 | local BYTES = 5 51 | 52 | -- newest and oldest are ends of double-linked list 53 | local newest = nil -- first 54 | local oldest = nil -- last 55 | 56 | local removed_tuple -- created in del(), removed in set() 57 | 58 | -- remove a tuple from linked list 59 | local function cut(tuple) 60 | local tuple_prev = tuple[PREV] 61 | local tuple_next = tuple[NEXT] 62 | tuple[PREV] = nil 63 | tuple[NEXT] = nil 64 | if tuple_prev and tuple_next then 65 | tuple_prev[NEXT] = tuple_next 66 | tuple_next[PREV] = tuple_prev 67 | elseif tuple_prev then 68 | -- tuple is the oldest element 69 | tuple_prev[NEXT] = nil 70 | oldest = tuple_prev 71 | elseif tuple_next then 72 | -- tuple is the newest element 73 | tuple_next[PREV] = nil 74 | newest = tuple_next 75 | else 76 | -- tuple is the only element 77 | newest = nil 78 | oldest = nil 79 | end 80 | end 81 | 82 | -- insert a tuple to the newest end 83 | local function setNewest(tuple) 84 | if not newest then 85 | newest = tuple 86 | oldest = tuple 87 | else 88 | tuple[NEXT] = newest 89 | newest[PREV] = tuple 90 | newest = tuple 91 | end 92 | end 93 | 94 | local function del(key, tuple) 95 | map[key] = nil 96 | cut(tuple) 97 | size = size - 1 98 | bytes_used = bytes_used - (tuple[BYTES] or 0) 99 | removed_tuple = tuple 100 | end 101 | 102 | -- removes elemenets to provide enough memory 103 | -- returns last removed element or nil 104 | local function makeFreeSpace(bytes) 105 | while size + 1 > max_size or (max_bytes and bytes_used + bytes > max_bytes) do 106 | assert(oldest, "not enough storage for cache") 107 | del(oldest[KEY], oldest) 108 | end 109 | end 110 | 111 | local function get(_, key) 112 | local tuple = map[key] 113 | if not tuple then 114 | return nil 115 | end 116 | cut(tuple) 117 | setNewest(tuple) 118 | return tuple[VALUE] 119 | end 120 | 121 | local function set(_, key, value, bytes) 122 | local tuple = map[key] 123 | if tuple then 124 | del(key, tuple) 125 | end 126 | if value ~= nil then 127 | -- the value is not removed 128 | bytes = max_bytes and (bytes or #value) or 0 129 | makeFreeSpace(bytes) 130 | local tuple1 = removed_tuple or {} 131 | map[key] = tuple1 132 | tuple1[VALUE] = value 133 | tuple1[KEY] = key 134 | tuple1[BYTES] = max_bytes and bytes 135 | size = size + 1 136 | bytes_used = bytes_used + bytes 137 | setNewest(tuple1) 138 | else 139 | assert(key ~= nil, "Key may not be nil") 140 | end 141 | removed_tuple = nil 142 | end 143 | 144 | local function delete(_, key) 145 | return set(_, key, nil) 146 | end 147 | 148 | local function mynext(_, prev_key) 149 | local tuple 150 | if prev_key then 151 | tuple = map[prev_key][NEXT] 152 | else 153 | tuple = newest 154 | end 155 | if tuple then 156 | return tuple[KEY], tuple[VALUE] 157 | else 158 | return nil 159 | end 160 | end 161 | 162 | -- returns iterator for keys and values 163 | local function lru_pairs() 164 | return mynext, nil, nil 165 | end 166 | 167 | local mt = { 168 | __index = {get = get, set = set, delete = delete, pairs = lru_pairs}, 169 | __pairs = lru_pairs 170 | } 171 | 172 | return setmetatable({}, mt) 173 | end 174 | 175 | return lru 176 | -------------------------------------------------------------------------------- /lua/cmp_treesitter/treesitter.lua: -------------------------------------------------------------------------------- 1 | local lru = require 'cmp_treesitter.lru' 2 | local treesitter = {} 3 | local cache = lru.new(512 * 1024, 8 * 1024 * 1024) 4 | 5 | function treesitter.new(bufnr) 6 | local fname = vim.fn.expand("%:p:f") 7 | local uri = vim.uri_from_fname(fname) 8 | 9 | if bufnr ~= 0 and bufnr ~= nil then 10 | uri = vim.uri_from_bufnr(bufnr) 11 | fname = vim.uri_to_fname(uri) 12 | else 13 | bufnr = vim.fn.bufnr() 14 | end 15 | 16 | local ftime = vim.fn.getftime(fname) 17 | local result = cache:get(bufnr) 18 | if result ~= nil and result.ftime == ftime then 19 | return result 20 | end 21 | local self = setmetatable({}, {__index = treesitter}) 22 | self.bufnr = bufnr -- dict bufnr : buf timestamp 23 | self.words = {} 24 | self.fname = fname 25 | self.ftime = 0 26 | self.processing = true 27 | return self 28 | end 29 | 30 | -- get all nodes 31 | function treesitter.get_nodes(self) 32 | local result = cache:get(self.bufnr) 33 | if result ~= nil and result.ftime == vim.fn.getftime(self.fname) then 34 | return result 35 | end 36 | 37 | local ok, parser = pcall(vim.treesitter.get_parser, self.bufnr) 38 | if not ok then 39 | return {} 40 | end 41 | local candidates = {} 42 | for _, tree in pairs(parser:parse()) do 43 | local query 44 | if vim.fn.has('nvim-0.9') == 1 then 45 | query = vim.treesitter.query.get(parser:lang(), 'highlights') 46 | else 47 | query = vim.treesitter.get_query(parser:lang(), 'highlights') 48 | end 49 | 50 | if query then 51 | for i, node in query:iter_captures(tree:root(), self.bufnr) do 52 | local parent = node:parent() 53 | local grandparent = parent and parent:parent() or nil 54 | local word = vim.treesitter.get_node_text(node, self.bufnr) 55 | local kind = query.captures[i] 56 | 57 | if word and kind ~= 'punctuation.bracket' and kind ~= 'punctuation.delimiter' then 58 | table.insert(candidates, { 59 | word = word, 60 | kind = kind, 61 | parent = parent and vim.treesitter.get_node_text(parent, self.bufnr) or nil, 62 | grandparent = grandparent and vim.treesitter.get_node_text(grandparent, self.bufnr) or nil 63 | }) 64 | end 65 | end 66 | end 67 | end 68 | self.words = candidates 69 | self.processing = false 70 | self.ftime = vim.fn.getftime(self.fname) 71 | 72 | -- print("get nodes", vim.inspect(self)) 73 | cache:set(self.bufnr, self) 74 | return self 75 | end 76 | 77 | function treesitter.async_get(self) 78 | return coroutine.create(function() 79 | return self:get_nodes() 80 | end) 81 | end 82 | 83 | return treesitter.new() 84 | --------------------------------------------------------------------------------