1 files changed, 191 insertions, 0 deletions
diff --git a/script/vm/local.lua b/script/vm/local.lua
new file mode 100644
index 00000000..7e8af0f1
--- /dev/null
+++ b/script/vm/local.lua
@@ -0,0 +1,191 @@
+local listMgr = require 'vm.list'
+
+local Sort = 0
+local Watch = setmetatable({}, {__mode = 'kv'})
+
+---@class Local
+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
+    if self._emmy then
+        self.value:setEmmy(self._emmy)
+    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
+
+    if not self:getSource() then
+        log.error('local no source')
+        return
+    end
+
+    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 EMMY_TYPE = {
+    ['emmy.class']        = true,
+    ['emmy.type']         = true,
+    ['emmy.arrayType']    = true,
+    ['emmy.tableType']    = true,
+    ['emmy.functionType'] = true,
+}
+
+function mt:setEmmy(emmy)
+    if not emmy then
+        return
+    end
+    if self.value and EMMY_TYPE[emmy.type] then
+        self.value:setEmmy(emmy)
+    end
+end
+
+---@param comment string
+function mt:setComment(comment)
+    self._comment = comment
+end
+
+---@return string
+function mt:getComment()
+    return self._comment
+end
+
+local function create(name, source, value, tags)
+    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,
+        tags = tags,
+        _info = {},
+    }, mt)
+    Watch[self] = true
+    return self
+end
+
+return {
+    create = create,
+    watch = Watch,
+}