1a1d7ecb73
* perf: avoid creating closure in cache.ensure and drop some cached getters This mainly addresses the perf issue on large amount of calls to `entry.new`. Previously every `cache.ensure` calls in the code path of it creates an anonymous function, and it seems that luajit just could not inline it. Function creation is not expensive in luajit, but that overhead is noticeable if every `cache.ensure` call creates a function. The first improvemnt is to solidate the cache callback and attach it to the metatable of `entry`. This ensures that every created entry instance share the same cache callback and no new functions will be frequently created, reduces the ram usage and GC overhead. To improve it further, some frequently accessed fields of entry like `completion_item` and `offset` is refactored to use simple table access instead of getter pattern. The current cached getter is implemented using `cache.ensure`, which introduces two more levels of function calls on each access: `cache.key` and `cache.get`. The overhead is okay if but noticeable if entries amount is quite large: you need to call 4 functions on a simple `completion_item` field access for each item. All of the changes done in the commit is just constant time optimization. But the different is huge if tested with LS providing large amount of entries like tailwindcss. * perf: delay fuzzy match on displayed vim item `entry.get_vim_item` is a very heavy call, especially when user do complex stuff on item formatting. Delay its call to window displaying to let `performance.max_view_entries` applied to it. * remove unneeded fill_defaults * update gha --------- Co-authored-by: hrsh7th <629908+hrsh7th@users.noreply.github.com>
638 lines
21 KiB
Lua
638 lines
21 KiB
Lua
local cache = require('cmp.utils.cache')
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local char = require('cmp.utils.char')
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local misc = require('cmp.utils.misc')
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local str = require('cmp.utils.str')
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local snippet = require('cmp.utils.snippet')
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local config = require('cmp.config')
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local types = require('cmp.types')
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local matcher = require('cmp.matcher')
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---@class cmp.Entry
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---@field public id integer
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---@field public cache cmp.Cache
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---@field public match_cache cmp.Cache
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---@field public score integer
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---@field public exact boolean
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---@field public matches table
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---@field public context cmp.Context
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---@field public source cmp.Source
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---@field public source_offset integer
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---@field public source_insert_range lsp.Range
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---@field public source_replace_range lsp.Range
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---@field public completion_item lsp.CompletionItem
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---@field public item_defaults? lsp.internal.CompletionItemDefaults
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---@field public resolved_completion_item lsp.CompletionItem|nil
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---@field public resolved_callbacks fun()[]
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---@field public resolving boolean
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---@field public confirmed boolean
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---@field public insert_range lsp.Range
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---@field public replace_range lsp.Range
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---@field public offset integer
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---@field public word string
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---@field public filter_text string
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---@field private match_view_args_ret {input:string, word:string, option:cmp.MatchingConfig, matches:table[]}
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local entry = {}
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entry.__index = entry
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---Create new entry
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---@param ctx cmp.Context
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---@param source cmp.Source
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---@param completion_item lsp.CompletionItem
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---@param item_defaults? lsp.internal.CompletionItemDefaults
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---@return cmp.Entry
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entry.new = function(ctx, source, completion_item, item_defaults)
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local self = setmetatable({}, entry)
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self.id = misc.id('entry.new')
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self.cache = cache.new()
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self.match_cache = cache.new()
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self.score = 0
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self.exact = false
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self.matches = {}
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self.context = ctx
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self.source = source
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self.offset = source.request_offset
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self.source_offset = source.request_offset
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self.source_insert_range = source.default_insert_range
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self.source_replace_range = source.default_replace_range
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self.item_defaults = item_defaults
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self.resolved_completion_item = nil
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self.resolved_callbacks = {}
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self.resolving = false
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self.confirmed = false
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self:_set_completion_item(completion_item)
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return self
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end
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---@package
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entry._set_completion_item = function(self, completion_item)
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if not self.completion_item then
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self.completion_item = self:fill_defaults(completion_item, self.item_defaults)
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else
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-- @see https://github.com/microsoft/vscode/blob/85eea4a9b2ccc99615e970bf2181edbc1781d0f9/src/vs/workbench/api/browser/mainThreadLanguageFeatures.ts#L588
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-- @see https://github.com/microsoft/vscode/blob/85eea4a9b2ccc99615e970bf2181edbc1781d0f9/src/vs/base/common/objects.ts#L89
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-- @see https://github.com/microsoft/vscode/blob/a00f2e64f4fa9a1f774875562e1e9697d7138ed3/src/vs/editor/contrib/suggest/browser/suggest.ts#L147
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for k, v in pairs(completion_item) do
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self.completion_item[k] = v or self.completion_item[k]
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end
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end
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local item = self.completion_item
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---Create filter text
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self.filter_text = item.filterText or str.trim(item.label)
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-- TODO: the order below is important
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if item.textEdit then
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self.insert_range = self:convert_range_encoding(item.textEdit.insert or item.textEdit.range)
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self.replace_range = self:convert_range_encoding(item.textEdit.replace or item.textEdit.range)
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end
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self.word = self:_get_word()
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self.offset = self:_get_offset()
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if not self.insert_range then
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self.insert_range = {
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start = {
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line = self.context.cursor.row - 1,
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character = self.offset - 1,
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},
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['end'] = self.source_insert_range['end'],
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}
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end
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if not self.replace_range or ((self.context.cursor.col - 1) == self.replace_range['end'].character) then
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self.replace_range = {
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start = {
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line = self.source_replace_range.start.line,
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character = self.offset - 1,
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},
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['end'] = self.source_replace_range['end'],
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}
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end
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end
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---@deprecated use entry.offset instead
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entry.get_offset = function(self)
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return self.offset
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end
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---Make offset value
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---@package
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---@return integer
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entry._get_offset = function(self)
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local offset = self.source_offset
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if self.completion_item.textEdit then
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local range = self.insert_range
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if range then
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local start = math.min(range.start.character + 1, offset)
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for idx = start, self.source_offset do
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local byte = string.byte(self.context.cursor_line, idx)
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if byte == nil or not char.is_white(byte) then
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return idx
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end
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end
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return offset
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end
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else
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-- NOTE
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-- The VSCode does not implement this but it's useful if the server does not care about word patterns.
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-- We should care about this performance.
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local word = self.word
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for idx = self.source_offset - 1, self.source_offset - #word, -1 do
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if char.is_semantic_index(self.context.cursor_line, idx) then
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local c = string.byte(self.context.cursor_line, idx)
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if char.is_white(c) then
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break
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end
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local match = true
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for i = 1, self.source_offset - idx do
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local c1 = string.byte(word, i)
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local c2 = string.byte(self.context.cursor_line, idx + i - 1)
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if not c1 or not c2 or c1 ~= c2 then
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match = false
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break
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end
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end
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if match then
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offset = math.min(offset, idx)
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end
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end
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end
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end
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return offset
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end
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---@deprecated use entry.word instead
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entry.get_word = function(self)
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return self.word
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end
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---Create word for vim.CompletedItem
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---NOTE: This method doesn't clear the cache after completionItem/resolve.
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---@package
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---@return string
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entry._get_word = function(self)
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--NOTE: This is nvim-cmp specific implementation.
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local completion_item = self.completion_item
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if completion_item.word then
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return completion_item.word
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end
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local word
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if completion_item.textEdit and not misc.empty(completion_item.textEdit.newText) then
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word = str.trim(completion_item.textEdit.newText)
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if completion_item.insertTextFormat == types.lsp.InsertTextFormat.Snippet then
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word = tostring(snippet.parse(word))
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end
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local overwrite = self:get_overwrite()
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if 0 < overwrite[2] or completion_item.insertTextFormat == types.lsp.InsertTextFormat.Snippet then
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word = str.get_word(word, string.byte(self.context.cursor_after_line, 1), overwrite[1] or 0)
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end
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elseif not misc.empty(completion_item.insertText) then
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word = str.trim(completion_item.insertText)
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if completion_item.insertTextFormat == types.lsp.InsertTextFormat.Snippet then
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word = str.get_word(tostring(snippet.parse(word)))
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end
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else
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word = str.trim(completion_item.label)
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end
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return str.oneline(word)
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end
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---Get overwrite information
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---@return integer[]
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entry.get_overwrite = function(self)
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return self.cache:ensure('get_overwrite', entry._get_overwrite, self)
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end
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---@package
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entry._get_overwrite = function(self)
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if self.completion_item.textEdit then
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local range = self.insert_range
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if range then
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local vim_start = range.start.character + 1
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local vim_end = range['end'].character + 1
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local before = self.context.cursor.col - vim_start
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local after = vim_end - self.context.cursor.col
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return { before, after }
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end
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end
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return { 0, 0 }
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end
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---@package
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entry.get_filter_text = function(self)
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return self.filter_text
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end
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---Get LSP's insert text
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---@return string
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entry.get_insert_text = function(self)
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return self.cache:ensure('get_insert_text', entry._get_insert_text, self)
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end
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---@package
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entry._get_insert_text = function(self)
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local completion_item = self.completion_item
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local word
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if completion_item.textEdit then
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word = str.trim(completion_item.textEdit.newText)
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if completion_item.insertTextFormat == types.lsp.InsertTextFormat.Snippet then
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word = str.remove_suffix(str.remove_suffix(word, '$0'), '${0}')
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end
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elseif completion_item.insertText then
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word = str.trim(completion_item.insertText)
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if completion_item.insertTextFormat == types.lsp.InsertTextFormat.Snippet then
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word = str.remove_suffix(str.remove_suffix(word, '$0'), '${0}')
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end
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else
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word = str.trim(completion_item.label)
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end
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return word
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end
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---Return the item is deprecated or not.
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---@return boolean
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entry.is_deprecated = function(self)
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return self.completion_item.deprecated or vim.tbl_contains(self.completion_item.tags or {}, types.lsp.CompletionItemTag.Deprecated)
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end
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---Return view information.
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---@param suggest_offset integer
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---@param entries_buf integer The buffer this entry will be rendered into.
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---@return { abbr: { text: string, bytes: integer, width: integer, hl_group: string }, kind: { text: string, bytes: integer, width: integer, hl_group: string }, menu: { text: string, bytes: integer, width: integer, hl_group: string } }
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entry.get_view = function(self, suggest_offset, entries_buf)
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local item = self:get_vim_item(suggest_offset)
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return self.cache:ensure('get_view:' .. tostring(entries_buf), entry._get_view, self, item, entries_buf)
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end
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---@package
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entry._get_view = function(self, item, entries_buf)
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local view = {}
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-- The result of vim.fn.strdisplaywidth depends on which buffer it was
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-- called in because it reads the values of the option 'tabstop' when
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-- rendering <Tab> characters.
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vim.api.nvim_buf_call(entries_buf, function()
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view.abbr = {}
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view.abbr.text = item.abbr or ''
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view.abbr.bytes = #view.abbr.text
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view.abbr.width = vim.fn.strdisplaywidth(view.abbr.text)
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view.abbr.hl_group = item.abbr_hl_group or (self:is_deprecated() and 'CmpItemAbbrDeprecated' or 'CmpItemAbbr')
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view.kind = {}
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view.kind.text = item.kind or ''
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view.kind.bytes = #view.kind.text
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view.kind.width = vim.fn.strdisplaywidth(view.kind.text)
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view.kind.hl_group = item.kind_hl_group or ('CmpItemKind' .. (types.lsp.CompletionItemKind[self:get_kind()] or ''))
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view.menu = {}
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view.menu.text = item.menu or ''
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view.menu.bytes = #view.menu.text
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view.menu.width = vim.fn.strdisplaywidth(view.menu.text)
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view.menu.hl_group = item.menu_hl_group or 'CmpItemMenu'
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view.dup = item.dup
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end)
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return view
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end
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---Make vim.CompletedItem
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---@param suggest_offset integer
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---@return vim.CompletedItem
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entry.get_vim_item = function(self, suggest_offset)
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return self.cache:ensure('get_vim_item:' .. tostring(suggest_offset), entry._get_vim_item, self, suggest_offset)
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end
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---@package
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entry._get_vim_item = function(self, suggest_offset)
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local completion_item = self.completion_item
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local word = self.word
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local abbr = str.oneline(completion_item.label)
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-- ~ indicator
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local is_expandable = false
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local expandable_indicator = config.get().formatting.expandable_indicator
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if #(completion_item.additionalTextEdits or {}) > 0 then
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is_expandable = true
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elseif completion_item.insertTextFormat == types.lsp.InsertTextFormat.Snippet then
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is_expandable = self:get_insert_text() ~= word
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elseif completion_item.kind == types.lsp.CompletionItemKind.Snippet then
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is_expandable = true
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end
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if expandable_indicator and is_expandable then
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abbr = abbr .. '~'
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end
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-- append delta text
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if suggest_offset < self.offset then
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word = string.sub(self.context.cursor_before_line, suggest_offset, self.offset - 1) .. word
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end
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-- labelDetails.
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local menu = nil
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if completion_item.labelDetails then
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menu = ''
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if completion_item.labelDetails.detail then
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menu = menu .. completion_item.labelDetails.detail
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end
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if completion_item.labelDetails.description then
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menu = menu .. completion_item.labelDetails.description
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end
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end
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-- remove duplicated string.
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if self.offset ~= self.context.cursor.col then
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for i = 1, #word do
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if str.has_prefix(self.context.cursor_after_line, string.sub(word, i, #word)) then
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word = string.sub(word, 1, i - 1)
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break
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end
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end
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end
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local cmp_opts = completion_item.cmp or {}
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local vim_item = {
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word = word,
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abbr = abbr,
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kind = cmp_opts.kind_text or types.lsp.CompletionItemKind[self:get_kind()] or types.lsp.CompletionItemKind[1],
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kind_hl_group = cmp_opts.kind_hl_group,
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menu = menu,
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dup = completion_item.dup or 1,
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}
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if config.get().formatting.format then
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vim_item = config.get().formatting.format(self, vim_item)
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end
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vim_item.word = str.oneline(vim_item.word or '')
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vim_item.abbr = str.oneline(vim_item.abbr or '')
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vim_item.kind = str.oneline(vim_item.kind or '')
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vim_item.menu = str.oneline(vim_item.menu or '')
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vim_item.equal = 1
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vim_item.empty = 1
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return vim_item
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end
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---Get commit characters
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---@return string[]
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entry.get_commit_characters = function(self)
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return self.completion_item.commitCharacters or {}
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end
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---@deprecated use entry.insert_range instead
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entry.get_insert_range = function(self)
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return self.insert_range
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end
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---@deprecated use entry.replace_range instead
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entry.get_replace_range = function(self)
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return self.replace_range
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end
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---Match line.
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---@param input string
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---@param matching_config cmp.MatchingConfig
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---@return { score: integer, matches: table[] }
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entry.match = function(self, input, matching_config)
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-- https://www.lua.org/pil/11.6.html
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-- do not use '..' to allocate multiple strings
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local cache_key = string.format('%s:%d:%d:%d:%d:%d:%d', input, self.resolved_completion_item and 1 or 0, matching_config.disallow_fuzzy_matching and 1 or 0, matching_config.disallow_partial_matching and 1 or 0, matching_config.disallow_prefix_unmatching and 1 or 0, matching_config.disallow_partial_fuzzy_matching and 1 or 0, matching_config.disallow_symbol_nonprefix_matching and 1 or 0)
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local matched = self.match_cache:get(cache_key)
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if matched then
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if self.match_view_args_ret and self.match_view_args_ret.input ~= input then
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self.match_view_args_ret.input = input
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self.match_view_args_ret.word = matched._word
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self.match_view_args_ret.matches = matched.matches
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end
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return matched
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end
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matched = self:_match(input, matching_config)
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self.match_cache:set(cache_key, matched)
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return matched
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end
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---@package
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entry._match = function(self, input, matching_config)
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local completion_item = self.completion_item
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local option = {
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disallow_fuzzy_matching = matching_config.disallow_fuzzy_matching,
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disallow_partial_fuzzy_matching = matching_config.disallow_partial_fuzzy_matching,
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disallow_partial_matching = matching_config.disallow_partial_matching,
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disallow_prefix_unmatching = matching_config.disallow_prefix_unmatching,
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disallow_symbol_nonprefix_matching = matching_config.disallow_symbol_nonprefix_matching,
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synonyms = {
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self.word,
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self.completion_item.label,
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},
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}
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local score, matches, filter_text
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local checked = {} ---@type table<string, boolean>
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filter_text = self.filter_text
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checked[filter_text] = true
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score, matches = matcher.match(input, filter_text, option)
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-- Support the language server that doesn't respect VSCode's behaviors.
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if score == 0 then
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if completion_item.textEdit and not misc.empty(completion_item.textEdit.newText) then
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local diff = self.source_offset - self.offset
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if diff > 0 then
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local prefix = string.sub(self.context.cursor_line, self.offset, self.offset + diff)
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local accept = nil
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accept = accept or string.match(prefix, '^[^%a]+$')
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accept = accept or string.find(completion_item.textEdit.newText, prefix, 1, true)
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if accept then
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filter_text = prefix .. filter_text
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if not checked[filter_text] then
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checked[filter_text] = true
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score, matches = matcher.match(input, filter_text, option)
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end
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end
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end
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end
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end
|
|
|
|
-- Fix highlight if filterText is not the same to vim_item.abbr.
|
|
if score > 0 then
|
|
self.match_view_args_ret = {
|
|
input = input,
|
|
word = filter_text,
|
|
option = option,
|
|
matches = matches,
|
|
}
|
|
end
|
|
|
|
return { score = score, matches = matches, _word = filter_text }
|
|
end
|
|
|
|
---@param view string
|
|
entry.get_view_matches = function(self, view)
|
|
if self.match_view_args_ret then
|
|
if self.match_view_args_ret.word == view then
|
|
return self.match_view_args_ret.matches
|
|
end
|
|
self.match_view_args_ret.word = view
|
|
local input = self.match_view_args_ret.input
|
|
local diff = self.source_offset - self.offset
|
|
if diff > 0 then
|
|
input = input:sub(1 + diff)
|
|
end
|
|
local _, matches = matcher.match(input, view, self.match_view_args_ret.option)
|
|
self.match_view_args_ret.matches = matches
|
|
return matches
|
|
end
|
|
end
|
|
|
|
---@deprecated use entry.completion_item instead
|
|
entry.get_completion_item = function(self)
|
|
return self.completion_item
|
|
end
|
|
|
|
---Create documentation
|
|
---@return string[]
|
|
entry.get_documentation = function(self)
|
|
local item = self.completion_item
|
|
|
|
local documents = {}
|
|
|
|
-- detail
|
|
if item.detail and item.detail ~= '' then
|
|
local ft = self.context.filetype
|
|
local dot_index = string.find(ft, '%.')
|
|
if dot_index ~= nil then
|
|
ft = string.sub(ft, 0, dot_index - 1)
|
|
end
|
|
table.insert(documents, {
|
|
kind = types.lsp.MarkupKind.Markdown,
|
|
value = ('```%s\n%s\n```'):format(ft, str.trim(item.detail)),
|
|
})
|
|
end
|
|
|
|
local documentation = item.documentation
|
|
if type(documentation) == 'string' and documentation ~= '' then
|
|
local value = str.trim(documentation)
|
|
if value ~= '' then
|
|
table.insert(documents, {
|
|
kind = types.lsp.MarkupKind.PlainText,
|
|
value = value,
|
|
})
|
|
end
|
|
elseif type(documentation) == 'table' and not misc.empty(documentation.value) then
|
|
local value = str.trim(documentation.value)
|
|
if value ~= '' then
|
|
table.insert(documents, {
|
|
kind = documentation.kind,
|
|
value = value,
|
|
})
|
|
end
|
|
end
|
|
|
|
return vim.lsp.util.convert_input_to_markdown_lines(documents)
|
|
end
|
|
|
|
---Get completion item kind
|
|
---@return lsp.CompletionItemKind
|
|
entry.get_kind = function(self)
|
|
return self.completion_item.kind or types.lsp.CompletionItemKind.Text
|
|
end
|
|
|
|
---Execute completion item's command.
|
|
---@param callback fun()
|
|
entry.execute = function(self, callback)
|
|
self.source:execute(self.completion_item, callback)
|
|
end
|
|
|
|
---Resolve completion item.
|
|
---@param callback fun()
|
|
entry.resolve = function(self, callback)
|
|
if self.resolved_completion_item then
|
|
return callback()
|
|
end
|
|
table.insert(self.resolved_callbacks, callback)
|
|
|
|
if not self.resolving then
|
|
self.resolving = true
|
|
self.source:resolve(self.completion_item, function(completion_item)
|
|
self.resolving = false
|
|
if not completion_item then
|
|
return
|
|
end
|
|
self:_set_completion_item(completion_item)
|
|
self.resolved_completion_item = self.completion_item
|
|
self.cache:clear()
|
|
for _, c in ipairs(self.resolved_callbacks) do
|
|
c()
|
|
end
|
|
end)
|
|
end
|
|
end
|
|
|
|
---@param completion_item lsp.CompletionItem
|
|
---@param defaults? lsp.internal.CompletionItemDefaults
|
|
---@return lsp.CompletionItem
|
|
entry.fill_defaults = function(_, completion_item, defaults)
|
|
defaults = defaults or {}
|
|
|
|
if defaults.data then
|
|
completion_item.data = completion_item.data or defaults.data
|
|
end
|
|
|
|
if defaults.commitCharacters then
|
|
completion_item.commitCharacters = completion_item.commitCharacters or defaults.commitCharacters
|
|
end
|
|
|
|
if defaults.insertTextFormat then
|
|
completion_item.insertTextFormat = completion_item.insertTextFormat or defaults.insertTextFormat
|
|
end
|
|
|
|
if defaults.insertTextMode then
|
|
completion_item.insertTextMode = completion_item.insertTextMode or defaults.insertTextMode
|
|
end
|
|
|
|
if defaults.editRange then
|
|
if not completion_item.textEdit then
|
|
if defaults.editRange.insert then
|
|
completion_item.textEdit = {
|
|
insert = defaults.editRange.insert,
|
|
replace = defaults.editRange.replace,
|
|
newText = completion_item.textEditText or completion_item.label,
|
|
}
|
|
else
|
|
completion_item.textEdit = {
|
|
range = defaults.editRange, --[[@as lsp.Range]]
|
|
newText = completion_item.textEditText or completion_item.label,
|
|
}
|
|
end
|
|
end
|
|
end
|
|
|
|
return completion_item
|
|
end
|
|
|
|
---Convert the oneline range encoding.
|
|
entry.convert_range_encoding = function(self, range)
|
|
local from_encoding = self.source.position_encoding
|
|
local cache_key = string.format('entry.convert_range_encoding:%d:%d:%s', range.start.character, range['end'].character, from_encoding)
|
|
local res = self.context.cache:get(cache_key)
|
|
if res then
|
|
return res
|
|
end
|
|
res = {
|
|
start = types.lsp.Position.to_utf8(self.context.cursor_line, range.start, from_encoding),
|
|
['end'] = types.lsp.Position.to_utf8(self.context.cursor_line, range['end'], from_encoding),
|
|
}
|
|
self.context.cache:set(cache_key, res)
|
|
return res
|
|
end
|
|
|
|
---Return true if the entry is invalid.
|
|
entry.is_invalid = function(self)
|
|
local is_invalid = false
|
|
is_invalid = is_invalid or misc.empty(self.completion_item.label)
|
|
if self.completion_item.textEdit then
|
|
local range = self.completion_item.textEdit.range or self.completion_item.textEdit.insert
|
|
is_invalid = is_invalid or range.start.line ~= range['end'].line or range.start.line ~= self.context.cursor.line
|
|
end
|
|
return is_invalid
|
|
end
|
|
|
|
return entry
|