2 files changed, 36 insertions, 0 deletions
diff --git a/script/core/guide.lua b/script/core/guide.lua
index b80a3628..64192297 100644
--- a/script/core/guide.lua
+++ b/script/core/guide.lua
@@ -290,8 +290,13 @@ end
 ---@param obj parser.guide.object
 ---@return parser.guide.object
 function m.getRoot(obj)
+    local source = obj
+    if source._root then
+        return source._root
+    end
     for _ = 1, 1000 do
         if obj.type == 'main' then
+            source._root = obj
             return obj
         end
         local parent = obj.parent
diff --git a/script/core/linker.lua b/script/core/linker.lua
new file mode 100644
index 00000000..6c475e70
--- /dev/null
+++ b/script/core/linker.lua
@@ -0,0 +1,31 @@
+local guide = require 'parser.guide'
+
+local function getKey(source)
+    if source.type == 'local' then
+        return ('l%d%s'):format(source.start, source[1])
+    end
+end
+
+---创建source的链接信息
+local function createLink(source)
+    local idList = {}
+    if getKey then
+        idList[#idList+1] = getKey(source)
+    end
+    local id = table.concat(idList, '|')
+    return {
+        id = id,
+    }
+end
+
+local m = {}
+
+---获取source的链接信息
+function m.getLink(source)
+    if not source._link then
+        source._link = createLink(source)
+    end
+    return source._link
+end
+
+return m