From 5641c17faaed10409a476558dde8e15f4f91f9cb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9C=80=E8=90=8C=E5=B0=8F=E6=B1=90?= <sumneko@hotmail.com>
Date: Tue, 5 Jan 2021 15:40:25 +0800
Subject: guess `self`

---
 changelog.md                |  1 +
 script/parser/guide.lua     | 25 +++++++++++++++++++++++++
 test/definition/special.lua | 10 ++++++++++
 3 files changed, 36 insertions(+)

diff --git a/changelog.md b/changelog.md
index 4a290acf..03774edd 100644
--- a/changelog.md
+++ b/changelog.md
@@ -2,6 +2,7 @@
 
 ## 1.11.0
 * `NEW` `Lua.runtime.plugin`
+* `NEW` intelli-scense: improved `m.f = function (self) end` from `self` to `m`
 * `CHG` performance optimization
 * `CHG` completion: improve performance of workspace words
 * `FIX` hover: tail comments may be cutted
diff --git a/script/parser/guide.lua b/script/parser/guide.lua
index 354a5eed..6ba7e903 100644
--- a/script/parser/guide.lua
+++ b/script/parser/guide.lua
@@ -1506,6 +1506,29 @@ function m.checkSameSimpleInSpecialBranch(status, obj, start, pushQueue)
     end
 end
 
+function m.checkSameSimpleInParamSelf(status, obj, start, pushQueue)
+    if obj.type ~= 'getlocal' or obj[1] ~= 'self' then
+        return
+    end
+    local node = obj.node
+    if node.tag == 'self' then
+        return
+    end
+    if node.parent.type ~= 'funcargs' then
+        return
+    end
+    local func = node.parent.parent
+    if func.type ~= 'function' or func.parent.type ~= 'setfield' then
+        return
+    end
+    local fieldNode = func.parent.node
+    local newStatus = m.status(status)
+    m.searchRefs(newStatus, fieldNode, 'ref')
+    for _, ref in ipairs(newStatus.results) do
+        pushQueue(ref, start, true)
+    end
+end
+
 local function appendValidGenericType(results, status, typeName, obj)
     if typeName.parent.type == 'doc.type.typeliteral' then
         if obj.type == 'string' and status.interface.docType then
@@ -2415,6 +2438,8 @@ function m.checkSameSimple(status, simple, ref, start, force, mode, pushQueue)
             m.checkSameSimpleInValueOfCallMetaTable(status, ref, i, pushQueue)
             -- 检查自己是特殊变量的分支的情况
             m.checkSameSimpleInSpecialBranch(status, ref, i, pushQueue)
+            -- self 的特殊处理
+            m.checkSameSimpleInParamSelf(status, ref, i, pushQueue)
             if cmode == 'ref' then
                 -- 检查形如 { a = f } 的情况
                 m.checkSameSimpleAsTableField(status, ref, i, pushQueue)
diff --git a/test/definition/special.lua b/test/definition/special.lua
index 4e3728e3..3f0d076a 100644
--- a/test/definition/special.lua
+++ b/test/definition/special.lua
@@ -124,3 +124,13 @@ end
 
 obj:<?x?>()
 ]]
+
+TEST [[
+local mt = {}
+
+mt.<!xx!> = 1
+
+mt.yy = function (self)
+    print(self.<?xx?>)
+end
+]]
-- 
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