1 files changed, 75 insertions, 0 deletions
diff --git a/script/vm/label.lua b/script/vm/label.lua
new file mode 100644
index 00000000..c0e0dfb8
--- /dev/null
+++ b/script/vm/label.lua
@@ -0,0 +1,75 @@
+local listMgr = require 'vm.list'
+
+local Sort = 0
+
+local mt = {}
+mt.__index = mt
+mt.type = 'label'
+
+function mt:getName()
+    return self.name
+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:getSource()
+    return listMgr.get(self.source)
+end
+
+return function (name, source)
+    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,
+        _info = {},
+    }, mt)
+    return self
+end