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local proto = require 'proto'
local nonil = require 'without-check-nil'
local client = require 'client'
local config = require 'config'
local ws = require 'workspace'
local isEnable = false
local function allWords()
local str = '\t\n.:(\'"[,#*@|=-{ +?'
local mark = {}
local list = {}
for c in str:gmatch '.' do
list[#list+1] = c
mark[c] = true
end
for _, scp in ipairs(ws.folders) do
local postfix = config.get(scp.uri, 'Lua.completion.postfix')
if postfix ~= '' and not mark[postfix] then
list[#list+1] = postfix
mark[postfix] = true
end
local separator = config.get(scp.uri, 'Lua.completion.requireSeparator')
if not mark[separator] then
list[#list+1] = separator
mark[separator] = true
end
end
return list
end
local function enable(uri)
if isEnable then
return
end
nonil.enable()
if not client.info.capabilities.textDocument.completion.dynamicRegistration then
nonil.disable()
return
end
nonil.disable()
isEnable = true
log.info('Enable completion.')
proto.request('client/registerCapability', {
registrations = {
{
id = 'completion',
method = 'textDocument/completion',
registerOptions = {
resolveProvider = true,
triggerCharacters = allWords(),
},
},
}
})
end
local function disable(uri)
if not isEnable then
return
end
nonil.enable()
if not client.info.capabilities.textDocument.completion.dynamicRegistration then
nonil.disable()
return
end
nonil.disable()
isEnable = false
log.info('Disable completion.')
proto.request('client/unregisterCapability', {
unregisterations = {
{
id = 'completion',
method = 'textDocument/completion',
},
}
})
end
config.watch(function (uri, key, value)
if key == '' then
key = 'Lua.completion.enable'
value = config.get(uri, key)
end
if key == 'Lua.completion.enable' then
if value == true then
enable(uri)
else
disable(uri)
end
end
if key == 'Lua.completion.postfix' then
if config.get(uri, 'Lua.completion.enable') then
disable(uri)
enable(uri)
end
end
end)
return {
enable = enable,
disable = disable,
allWords = allWords,
}
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