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local listMgr = require 'vm.list'
local Sort = 0
local Watch = setmetatable({}, {__mode = 'kv'})
local mt = {}
mt.__index = mt
mt.type = 'local'
mt._close = math.maxinteger
function mt:setValue(value)
if not value then
return
end
if self.value then
--self.value:mergeValue(value)
self.value:mergeType(value)
self.value = value
else
self.value = value
end
return value
end
function mt:getValue()
return self.value
end
function mt:addInfo(tp, source)
if not source then
error('No source')
end
local id = source.id
if not id then
error('Not instanted source')
end
if self._info[id] then
return
end
Sort = Sort + 1
local info = {
type = tp,
source = id,
_sort = Sort,
}
self._info[id] = info
end
function mt:eachInfo(callback)
local list = {}
for srcId, info in pairs(self._info) do
local src = listMgr.get(srcId)
if src then
list[#list+1] = info
else
self._info[srcId] = nil
end
end
table.sort(list, function (a, b)
return a._sort < b._sort
end)
for i = 1, #list do
local info = list[i]
local res = callback(info, listMgr.get(info.source))
if res ~= nil then
return res
end
end
return nil
end
function mt:set(name, v)
if not self._flag then
self._flag = {}
end
self._flag[name] = v
end
function mt:get(name)
if not self._flag then
return nil
end
return self._flag[name]
end
function mt:getName()
return self.name
end
function mt:shadow(old)
if not old then
if not self._shadow then
return nil
end
for i = #self._shadow, 1, -1 do
local loc = self._shadow[i]
if not loc:getSource() then
table.remove(self._shadow, i)
end
end
return self._shadow
end
local group = old._shadow
if not group then
group = {}
group[#group+1] = old
end
group[#group+1] = self
self._shadow = group
old:close(self:getSource().start - 1)
end
function mt:close(pos)
if pos then
if pos <= 0 then
pos = math.maxinteger
end
self._close = pos
else
return self._close
end
end
function mt:getSource()
return listMgr.get(self.source)
end
local function create(name, source, value)
if not value then
error('Local must has a value')
end
if not source then
error('No source')
end
local id = source.id
if not id then
error('Not instanted source')
end
local self = setmetatable({
name = name,
source = id,
value = value,
_info = {},
}, mt)
Watch[self] = true
return self
end
return {
create = create,
watch = Watch,
}
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