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local files = require 'files'
local vm = require 'vm'
local guide = require 'parser.guide'
local proto = require 'proto'
local define = require 'proto.define'
local util = require 'utility'
local findSource = require 'core.find-source'
local Forcing
local function askForcing(str)
if TEST then
return true
end
if Forcing ~= nil then
return Forcing
end
local version = files.globalVersion
-- TODO
local item = proto.awaitRequest('window/showMessageRequest', {
type = define.MessageType.Warning,
message = ('[%s]不是有效的标识符,是否强制替换?'):format(str),
actions = {
{
title = '强制替换',
},
{
title = '取消',
},
}
})
if version ~= files.globalVersion then
Forcing = false
proto.notify('window/showMessage', {
type = define.MessageType.Warning,
message = '文件发生了变化,替换取消。'
})
return false
end
if not item then
Forcing = false
return false
end
if item.title == '强制替换' then
Forcing = true
return true
else
Forcing = false
return false
end
end
local function askForMultiChange(results, newname)
if TEST then
return true
end
local uris = {}
for _, result in ipairs(results) do
local uri = result.uri
if not uris[uri] then
uris[uri] = 0
uris[#uris+1] = uri
end
uris[uri] = uris[uri] + 1
end
if #uris <= 1 then
return true
end
local version = files.globalVersion
-- TODO
local item = proto.awaitRequest('window/showMessageRequest', {
type = define.MessageType.Warning,
message = ('将修改 %d 个文件,共 %d 处。'):format(
#uris,
#results
),
actions = {
{
title = '继续',
},
{
title = '放弃',
},
}
})
if version ~= files.globalVersion then
proto.notify('window/showMessage', {
type = define.MessageType.Warning,
message = '文件发生了变化,替换取消。'
})
return false
end
if item and item.title == '继续' then
local fileList = {}
for _, uri in ipairs(uris) do
fileList[#fileList+1] = ('%s (%d)'):format(uri, uris[uri])
end
log.debug(('Renamed [%s]\r\n%s'):format(newname, table.concat(fileList, '\r\n')))
return true
end
return false
end
local function trim(str)
return str:match '^%s*(%S+)%s*$'
end
local function isValidName(str)
return str:match '^[%a_][%w_]*$'
end
local function isValidGlobal(str)
for s in str:gmatch '[^%.]*' do
if not isValidName(trim(s)) then
return false
end
end
return true
end
local function isValidFunctionName(str)
if isValidGlobal(str) then
return true
end
local pos = str:find(':', 1, true)
if not pos then
return false
end
return isValidGlobal(trim(str:sub(1, pos-1)))
and isValidName(trim(str:sub(pos+1)))
end
local function isFunctionGlobalName(source)
local parent = source.parent
if parent.type ~= 'setglobal' then
return false
end
local value = parent.value
if not value.type ~= 'function' then
return false
end
return value.start <= parent.start
end
local function renameLocal(source, newname, callback)
if isValidName(newname) then
callback(source, source.start, source.finish, newname)
return
end
if askForcing(newname) then
callback(source, source.start, source.finish, newname)
end
end
local function renameField(source, newname, callback)
if isValidName(newname) then
callback(source, source.start, source.finish, newname)
return true
end
local parent = source.parent
if parent.type == 'setfield'
or parent.type == 'getfield' then
local dot = parent.dot
local newstr = '[' .. util.viewString(newname) .. ']'
callback(source, dot.start, source.finish, newstr)
elseif parent.type == 'tablefield' then
local newstr = '[' .. util.viewString(newname) .. ']'
callback(source, source.start, source.finish, newstr)
elseif parent.type == 'getmethod' then
if not askForcing(newname) then
return false
end
callback(source, source.start, source.finish, newname)
elseif parent.type == 'setmethod' then
local uri = guide.getUri(source)
local text = files.getText(uri)
local func = parent.value
-- function mt:name () end --> mt['newname'] = function (self) end
local newstr = string.format('%s[%s] = function '
, text:sub(parent.start, parent.node.finish)
, util.viewString(newname)
)
callback(source, func.start, parent.finish, newstr)
local pl = text:find('(', parent.finish, true)
if pl then
if func.args then
callback(source, pl + 1, pl, 'self, ')
else
callback(source, pl + 1, pl, 'self')
end
end
end
return true
end
local function renameGlobal(source, newname, callback)
if isValidGlobal(newname) then
callback(source, source.start, source.finish, newname)
return true
end
if isValidFunctionName(newname) then
if not isFunctionGlobalName(source) then
askForcing(newname)
end
callback(source, source.start, source.finish, newname)
return true
end
local newstr = '_ENV[' .. util.viewString(newname) .. ']'
-- function name () end --> _ENV['newname'] = function () end
if source.value and source.value.type == 'function'
and source.value.start < source.start then
callback(source, source.value.start, source.finish, newstr .. ' = function ')
return true
end
callback(source, source.start, source.finish, newstr)
return true
end
local function ofLocal(source, newname, callback)
renameLocal(source, newname, callback)
if source.ref then
for _, ref in ipairs(source.ref) do
renameLocal(ref, newname, callback)
end
end
end
local function ofField(source, newname, callback)
local key = guide.getKeyName(source)
vm.eachRef(source, function (src)
if vm.getKeyName(src) ~= key then
return
end
if src.type == 'tablefield'
or src.type == 'getfield'
or src.type == 'setfield' then
src = src.field
elseif src.type == 'tableindex'
or src.type == 'getindex'
or src.type == 'setindex' then
src = src.index
elseif src.type == 'getmethod'
or src.type == 'setmethod' then
src = src.method
end
if src.type == 'string' then
local quo = src[2]
local text = util.viewString(newname, quo)
callback(src, src.start, src.finish, text)
return
elseif src.type == 'field'
or src.type == 'method' then
local suc = renameField(src, newname, callback)
if not suc then
return false
end
elseif src.type == 'setglobal'
or src.type == 'getglobal' then
local suc = renameGlobal(src, newname, callback)
if not suc then
return false
end
end
end)
end
local function ofLabel(source, newname, callback)
if not isValidName(newname) and not askForcing(newname)then
return false
end
vm.eachRef(source, function (src)
callback(src, src.start, src.finish, newname)
end)
end
local function rename(source, newname, callback)
if source.type == 'label'
or source.type == 'goto' then
return ofLabel(source, newname, callback)
elseif source.type == 'local' then
return ofLocal(source, newname, callback)
elseif source.type == 'setlocal'
or source.type == 'getlocal' then
return ofLocal(source, newname, callback)
elseif source.type == 'field'
or source.type == 'method'
or source.type == 'index' then
return ofField(source, newname, callback)
elseif source.type == 'tablefield'
or source.type == 'setglobal'
or source.type == 'getglobal' then
return ofField(source, newname, callback)
elseif source.type == 'string'
or source.type == 'number'
or source.type == 'boolean' then
local parent = source.parent
if not parent then
return
end
if parent.type == 'setindex'
or parent.type == 'getindex'
or parent.type == 'tableindex' then
return ofField(parent, newname, callback)
end
end
return
end
local function prepareRename(source)
if source.type == 'label'
or source.type == 'goto'
or source.type == 'local'
or source.type == 'setlocal'
or source.type == 'getlocal'
or source.type == 'field'
or source.type == 'method'
or source.type == 'tablefield'
or source.type == 'setglobal'
or source.type == 'getglobal' then
return source, source[1]
elseif source.type == 'string'
or source.type == 'number'
or source.type == 'boolean' then
local parent = source.parent
if not parent then
return nil
end
if parent.type == 'setindex'
or parent.type == 'getindex'
or parent.type == 'tableindex' then
return source, source[1]
end
return nil
end
return nil
end
local accept = {
['label'] = true,
['goto'] = true,
['local'] = true,
['setlocal'] = true,
['getlocal'] = true,
['field'] = true,
['method'] = true,
['tablefield'] = true,
['setglobal'] = true,
['getglobal'] = true,
['string'] = true,
['boolean'] = true,
['number'] = true,
}
local m = {}
function m.rename(uri, pos, newname)
local ast = files.getAst(uri)
if not ast then
return nil
end
local source = findSource(ast, pos, accept)
if not source then
return nil
end
local results = {}
local mark = {}
vm.setSearchLevel(3)
rename(source, newname, function (target, start, finish, text)
if mark[start] then
return
end
mark[start] = true
results[#results+1] = {
start = start,
finish = finish,
text = text,
uri = guide.getUri(target),
}
end)
if Forcing == false then
Forcing = nil
return nil
end
if #results == 0 then
return nil
end
if not askForMultiChange(results, newname) then
return nil
end
return results
end
function m.prepareRename(uri, pos)
local ast = files.getAst(uri)
if not ast then
return nil
end
local source = findSource(ast, pos, accept)
if not source then
return
end
local res, text = prepareRename(source)
if not res then
return nil
end
return {
start = source.start,
finish = source.finish,
text = text,
}
end
return m
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