From 21004f1fb9b2f6129a231a6c8d99179f0d6e3edf Mon Sep 17 00:00:00 2001
From: Li Jin <dragon-fly@qq.com>
Date: Mon, 25 Mar 2024 08:25:06 +0800
Subject: remove one more redundant 'do' block from destructuring.

---
 spec/outputs/5.1/attrib.lua          |  12 +--
 spec/outputs/assign.lua              |  12 +--
 spec/outputs/attrib.lua              |  12 +--
 spec/outputs/backcall.lua            |  14 ++-
 spec/outputs/codes_from_doc.lua      | 104 +++++++-----------
 spec/outputs/codes_from_doc_zh.lua   | 104 +++++++-----------
 spec/outputs/cond.lua                |   6 +-
 spec/outputs/destructure.lua         | 198 ++++++++++++++---------------------
 spec/outputs/import.lua              |  12 +--
 spec/outputs/lists.lua               |  16 ++-
 spec/outputs/local.lua               |   6 +-
 spec/outputs/metatable.lua           |  24 ++---
 spec/outputs/unicode/assign.lua      |  12 +--
 spec/outputs/unicode/backcall.lua    |  14 ++-
 spec/outputs/unicode/cond.lua        |   6 +-
 spec/outputs/unicode/destructure.lua | 198 ++++++++++++++---------------------
 spec/outputs/unicode/import.lua      |  12 +--
 spec/outputs/unicode/local.lua       |   6 +-
 spec/outputs/unicode/metatable.lua   |  24 ++---
 19 files changed, 303 insertions(+), 489 deletions(-)

(limited to 'spec')

diff --git a/spec/outputs/5.1/attrib.lua b/spec/outputs/5.1/attrib.lua
index 0edaf0e..9cacd97 100644
--- a/spec/outputs/5.1/attrib.lua
+++ b/spec/outputs/5.1/attrib.lua
@@ -38,13 +38,11 @@ do
 end
 do
 	local a, b
-	do
-		local _obj_0 = {
-			2,
-			3
-		}
-		a, b = _obj_0[1], _obj_0[2]
-	end
+	local _obj_0 = {
+		2,
+		3
+	}
+	a, b = _obj_0[1], _obj_0[2]
 end
 local _anon_func_0 = function(_close_1, error, f, _arg_0, ...)
 	do
diff --git a/spec/outputs/assign.lua b/spec/outputs/assign.lua
index 61b0843..5552f73 100644
--- a/spec/outputs/assign.lua
+++ b/spec/outputs/assign.lua
@@ -53,15 +53,11 @@ return _(function()
 	do
 		local a, b
 		if "a" == c then
-			do
-				local _obj_0 = tb
-				a, b = _obj_0[1], _obj_0[2]
-			end
+			local _obj_0 = tb
+			a, b = _obj_0[1], _obj_0[2]
 		elseif "b" == c then
-			do
-				local _obj_0 = f()
-				a, b = _obj_0[1], _obj_0[2]
-			end
+			local _obj_0 = f()
+			a, b = _obj_0[1], _obj_0[2]
 		end
 	end
 	if x then
diff --git a/spec/outputs/attrib.lua b/spec/outputs/attrib.lua
index f6b0784..626944e 100644
--- a/spec/outputs/attrib.lua
+++ b/spec/outputs/attrib.lua
@@ -27,13 +27,11 @@ do
 end
 do
 	local a, b
-	do
-		local _obj_0 = {
-			2,
-			3
-		}
-		a, b = _obj_0[1], _obj_0[2]
-	end
+	local _obj_0 = {
+		2,
+		3
+	}
+	a, b = _obj_0[1], _obj_0[2]
 end
 do
 	local v <close> = (function()
diff --git a/spec/outputs/backcall.lua b/spec/outputs/backcall.lua
index 38e5754..cb8b2b7 100644
--- a/spec/outputs/backcall.lua
+++ b/spec/outputs/backcall.lua
@@ -80,15 +80,13 @@ end
 do
 	local result, msg
 	do
-		do
-			local _obj_0 = receiveAsync("filename.txt", function(data)
-				print(data)
-				return processAsync(data, function(info)
-					return check(info)
-				end)
+		local _obj_0 = receiveAsync("filename.txt", function(data)
+			print(data)
+			return processAsync(data, function(info)
+				return check(info)
 			end)
-			result, msg = _obj_0.result, _obj_0.msg
-		end
+		end)
+		result, msg = _obj_0.result, _obj_0.msg
 	end
 	print(result, msg)
 	local totalSize = reduce(((function()
diff --git a/spec/outputs/codes_from_doc.lua b/spec/outputs/codes_from_doc.lua
index 1f593db..ca54086 100644
--- a/spec/outputs/codes_from_doc.lua
+++ b/spec/outputs/codes_from_doc.lua
@@ -359,10 +359,8 @@ do
 		C, Ct, Cmt = _obj_0.C, _obj_0.Ct, _obj_0.Cmt
 	end
 	local one, two, ch
-	do
-		local _obj_0 = require("export")
-		one, two, ch = _obj_0[1], _obj_0[2], _obj_0.Something.umm[1]
-	end
+	local _obj_0 = require("export")
+	one, two, ch = _obj_0[1], _obj_0[2], _obj_0.Something.umm[1]
 end
 local _module_0 = { }
 local a, b, c = 1, 2, 3
@@ -527,36 +525,26 @@ local obj2 = {
 local first, second = obj2.numbers[1], obj2.numbers[2]
 print(first, second, color)
 local first, second, color
-do
-	local _obj_0 = obj2
-	first, second, color = _obj_0.numbers[1], _obj_0.numbers[2], _obj_0.properties.color
-end
+local _obj_0 = obj2
+first, second, color = _obj_0.numbers[1], _obj_0.numbers[2], _obj_0.properties.color
 local concat, insert
-do
-	local _obj_0 = table
-	concat, insert = _obj_0.concat, _obj_0.insert
-end
+local _obj_0 = table
+concat, insert = _obj_0.concat, _obj_0.insert
 local mix, max, rand
-do
-	local _obj_0 = math
-	mix, max, rand = _obj_0.mix, _obj_0.max, _obj_0.random
-end
+local _obj_0 = math
+mix, max, rand = _obj_0.mix, _obj_0.max, _obj_0.random
 local name, job
-do
-	local _obj_0 = person
-	name, job = _obj_0.name, _obj_0.job
-	if name == nil then
-		name = "nameless"
-	end
-	if job == nil then
-		job = "jobless"
-	end
+local _obj_0 = person
+name, job = _obj_0.name, _obj_0.job
+if name == nil then
+	name = "nameless"
 end
-local two, four
-do
-	local _obj_0 = items
-	two, four = _obj_0[2], _obj_0[4]
+if job == nil then
+	job = "jobless"
 end
+local two, four
+local _obj_0 = items
+two, four = _obj_0[2], _obj_0[4]
 local tuples = {
 	{
 		"hello",
@@ -647,10 +635,8 @@ local _ <close> = setmetatable({ }, {
 	end
 })
 local a, b, c, d
-do
-	local _obj_0 = tb
-	a, b, c, d = _obj_0.a, _obj_0.b, _obj_0[1], _obj_0[2]
-end
+local _obj_0 = tb
+a, b, c, d = _obj_0.a, _obj_0.b, _obj_0[1], _obj_0[2]
 local some_string = "Here is a string\n  that has a line break in it."
 print("I am " .. tostring(math.random() * 100) .. "% sure.")
 local integer = 1000000
@@ -2360,10 +2346,8 @@ do
 		C, Ct, Cmt = _obj_0.C, _obj_0.Ct, _obj_0.Cmt
 	end
 	local one, two, ch
-	do
-		local _obj_0 = require("export")
-		one, two, ch = _obj_0[1], _obj_0[2], _obj_0.Something.umm[1]
-	end
+	local _obj_0 = require("export")
+	one, two, ch = _obj_0[1], _obj_0[2], _obj_0.Something.umm[1]
 end
 local _module_0 = { }
 local a, b, c = 1, 2, 3
@@ -2528,36 +2512,26 @@ local obj2 = {
 local first, second = obj2.numbers[1], obj2.numbers[2]
 print(first, second, color)
 local first, second, color
-do
-	local _obj_0 = obj2
-	first, second, color = _obj_0.numbers[1], _obj_0.numbers[2], _obj_0.properties.color
-end
+local _obj_0 = obj2
+first, second, color = _obj_0.numbers[1], _obj_0.numbers[2], _obj_0.properties.color
 local concat, insert
-do
-	local _obj_0 = table
-	concat, insert = _obj_0.concat, _obj_0.insert
-end
+local _obj_0 = table
+concat, insert = _obj_0.concat, _obj_0.insert
 local mix, max, rand
-do
-	local _obj_0 = math
-	mix, max, rand = _obj_0.mix, _obj_0.max, _obj_0.random
-end
+local _obj_0 = math
+mix, max, rand = _obj_0.mix, _obj_0.max, _obj_0.random
 local name, job
-do
-	local _obj_0 = person
-	name, job = _obj_0.name, _obj_0.job
-	if name == nil then
-		name = "nameless"
-	end
-	if job == nil then
-		job = "jobless"
-	end
+local _obj_0 = person
+name, job = _obj_0.name, _obj_0.job
+if name == nil then
+	name = "nameless"
 end
-local two, four
-do
-	local _obj_0 = items
-	two, four = _obj_0[2], _obj_0[4]
+if job == nil then
+	job = "jobless"
 end
+local two, four
+local _obj_0 = items
+two, four = _obj_0[2], _obj_0[4]
 local tuples = {
 	{
 		"hello",
@@ -2648,10 +2622,8 @@ local _ <close> = setmetatable({ }, {
 	end
 })
 local a, b, c, d
-do
-	local _obj_0 = tb
-	a, b, c, d = _obj_0.a, _obj_0.b, _obj_0[1], _obj_0[2]
-end
+local _obj_0 = tb
+a, b, c, d = _obj_0.a, _obj_0.b, _obj_0[1], _obj_0[2]
 local some_string = "Here is a string\n  that has a line break in it."
 print("I am " .. tostring(math.random() * 100) .. "% sure.")
 local integer = 1000000
diff --git a/spec/outputs/codes_from_doc_zh.lua b/spec/outputs/codes_from_doc_zh.lua
index fff0bdd..dfa6efd 100644
--- a/spec/outputs/codes_from_doc_zh.lua
+++ b/spec/outputs/codes_from_doc_zh.lua
@@ -359,10 +359,8 @@ do
 		C, Ct, Cmt = _obj_0.C, _obj_0.Ct, _obj_0.Cmt
 	end
 	local one, two, ch
-	do
-		local _obj_0 = require("export")
-		one, two, ch = _obj_0[1], _obj_0[2], _obj_0.Something.umm[1]
-	end
+	local _obj_0 = require("export")
+	one, two, ch = _obj_0[1], _obj_0[2], _obj_0.Something.umm[1]
 end
 local _module_0 = { }
 local a, b, c = 1, 2, 3
@@ -527,36 +525,26 @@ local obj2 = {
 local first, second = obj2.numbers[1], obj2.numbers[2]
 print(first, second, color)
 local first, second, color
-do
-	local _obj_0 = obj2
-	first, second, color = _obj_0.numbers[1], _obj_0.numbers[2], _obj_0.properties.color
-end
+local _obj_0 = obj2
+first, second, color = _obj_0.numbers[1], _obj_0.numbers[2], _obj_0.properties.color
 local concat, insert
-do
-	local _obj_0 = table
-	concat, insert = _obj_0.concat, _obj_0.insert
-end
+local _obj_0 = table
+concat, insert = _obj_0.concat, _obj_0.insert
 local mix, max, rand
-do
-	local _obj_0 = math
-	mix, max, rand = _obj_0.mix, _obj_0.max, _obj_0.random
-end
+local _obj_0 = math
+mix, max, rand = _obj_0.mix, _obj_0.max, _obj_0.random
 local name, job
-do
-	local _obj_0 = person
-	name, job = _obj_0.name, _obj_0.job
-	if name == nil then
-		name = "nameless"
-	end
-	if job == nil then
-		job = "jobless"
-	end
+local _obj_0 = person
+name, job = _obj_0.name, _obj_0.job
+if name == nil then
+	name = "nameless"
 end
-local two, four
-do
-	local _obj_0 = items
-	two, four = _obj_0[2], _obj_0[4]
+if job == nil then
+	job = "jobless"
 end
+local two, four
+local _obj_0 = items
+two, four = _obj_0[2], _obj_0[4]
 local tuples = {
 	{
 		"hello",
@@ -647,10 +635,8 @@ local _ <close> = setmetatable({ }, {
 	end
 })
 local a, b, c, d
-do
-	local _obj_0 = tb
-	a, b, c, d = _obj_0.a, _obj_0.b, _obj_0[1], _obj_0[2]
-end
+local _obj_0 = tb
+a, b, c, d = _obj_0.a, _obj_0.b, _obj_0[1], _obj_0[2]
 local some_string = "这是一个字符串\n  并包括一个换行。"
 print("我有" .. tostring(math.random() * 100) .. "%的把握。")
 local integer = 1000000
@@ -2354,10 +2340,8 @@ do
 		C, Ct, Cmt = _obj_0.C, _obj_0.Ct, _obj_0.Cmt
 	end
 	local one, two, ch
-	do
-		local _obj_0 = require("export")
-		one, two, ch = _obj_0[1], _obj_0[2], _obj_0.Something.umm[1]
-	end
+	local _obj_0 = require("export")
+	one, two, ch = _obj_0[1], _obj_0[2], _obj_0.Something.umm[1]
 end
 local _module_0 = { }
 local a, b, c = 1, 2, 3
@@ -2522,36 +2506,26 @@ local obj2 = {
 local first, second = obj2.numbers[1], obj2.numbers[2]
 print(first, second, color)
 local first, second, color
-do
-	local _obj_0 = obj2
-	first, second, color = _obj_0.numbers[1], _obj_0.numbers[2], _obj_0.properties.color
-end
+local _obj_0 = obj2
+first, second, color = _obj_0.numbers[1], _obj_0.numbers[2], _obj_0.properties.color
 local concat, insert
-do
-	local _obj_0 = table
-	concat, insert = _obj_0.concat, _obj_0.insert
-end
+local _obj_0 = table
+concat, insert = _obj_0.concat, _obj_0.insert
 local mix, max, rand
-do
-	local _obj_0 = math
-	mix, max, rand = _obj_0.mix, _obj_0.max, _obj_0.random
-end
+local _obj_0 = math
+mix, max, rand = _obj_0.mix, _obj_0.max, _obj_0.random
 local name, job
-do
-	local _obj_0 = person
-	name, job = _obj_0.name, _obj_0.job
-	if name == nil then
-		name = "nameless"
-	end
-	if job == nil then
-		job = "jobless"
-	end
+local _obj_0 = person
+name, job = _obj_0.name, _obj_0.job
+if name == nil then
+	name = "nameless"
 end
-local two, four
-do
-	local _obj_0 = items
-	two, four = _obj_0[2], _obj_0[4]
+if job == nil then
+	job = "jobless"
 end
+local two, four
+local _obj_0 = items
+two, four = _obj_0[2], _obj_0[4]
 local tuples = {
 	{
 		"hello",
@@ -2642,10 +2616,8 @@ local _ <close> = setmetatable({ }, {
 	end
 })
 local a, b, c, d
-do
-	local _obj_0 = tb
-	a, b, c, d = _obj_0.a, _obj_0.b, _obj_0[1], _obj_0[2]
-end
+local _obj_0 = tb
+a, b, c, d = _obj_0.a, _obj_0.b, _obj_0[1], _obj_0[2]
 local some_string = "这是一个字符串\n  并包括一个换行。"
 print("我有" .. tostring(math.random() * 100) .. "%的把握。")
 local integer = 1000000
diff --git a/spec/outputs/cond.lua b/spec/outputs/cond.lua
index 5a5aae5..083419a 100644
--- a/spec/outputs/cond.lua
+++ b/spec/outputs/cond.lua
@@ -318,10 +318,8 @@ do
 		if _des_0 then
 			_M = _des_0
 			local Thing = _M.Thing
-			do
-				local _obj_0 = _M
-				a, b = _obj_0.a, _obj_0.b
-			end
+			local _obj_0 = _M
+			a, b = _obj_0.a, _obj_0.b
 		end
 	end
 end
diff --git a/spec/outputs/destructure.lua b/spec/outputs/destructure.lua
index 224ed2d..2d0d46f 100644
--- a/spec/outputs/destructure.lua
+++ b/spec/outputs/destructure.lua
@@ -10,10 +10,8 @@ do
 		a, b, c = _obj_0[1][1], _obj_0[2], _obj_0[3][1]
 	end
 	local hello, world
-	do
-		local _obj_0 = value
-		hello, world = _obj_0.hello, _obj_0.world
-	end
+	local _obj_0 = value
+	hello, world = _obj_0.hello, _obj_0.world
 end
 do
 	local no, thing
@@ -49,17 +47,13 @@ do
 	end
 	do
 		c = nil
-		do
-			local _obj_0 = tbl
-			a, b = _obj_0.a, _obj_0.b
-		end
+		local _obj_0 = tbl
+		a, b = _obj_0.a, _obj_0.b
 	end
 	do
 		a = tbl
-		do
-			local _obj_0 = _
-			b, c = _obj_0.b, _obj_0.c
-		end
+		local _obj_0 = _
+		b, c = _obj_0.b, _obj_0.c
 	end
 	do
 		b = _
@@ -88,17 +82,13 @@ do
 end
 do
 	local c, e
-	do
-		local _obj_0 = tb
-		c, e = _obj_0.a.b, _obj_0.a.d
-	end
+	local _obj_0 = tb
+	c, e = _obj_0.a.b, _obj_0.a.d
 end
 do
 	local c, e, f
-	do
-		local _obj_0 = tb
-		c, e, f = _obj_0.a[1].b, _obj_0.a[2].d, _obj_0.a[3]
-	end
+	local _obj_0 = tb
+	c, e, f = _obj_0.a[1].b, _obj_0.a[2].d, _obj_0.a[3]
 end
 do
 	self.world = x[1]
@@ -169,10 +159,8 @@ do
 end
 do
 	local a, b, c
-	do
-		local _obj_0 = z
-		a, b, c = _obj_0[1], _obj_0[2], _obj_0[3]
-	end
+	local _obj_0 = z
+	a, b, c = _obj_0[1], _obj_0[2], _obj_0[3]
 end
 local _
 _ = function(z)
@@ -189,21 +177,17 @@ do
 end
 do
 	local a, b, c
-	do
-		local _obj_0 = thing
-		a, b, c = _obj_0["if"][1], _obj_0["if"][2], _obj_0["if"][3]
-	end
+	local _obj_0 = thing
+	a, b, c = _obj_0["if"][1], _obj_0["if"][2], _obj_0["if"][3]
 end
 do
 	local a, b
 	if true then
-		do
-			local _obj_0 = {
-				a = "Hello",
-				b = "World"
-			}
-			a, b = _obj_0.a, _obj_0.b
-		end
+		local _obj_0 = {
+			a = "Hello",
+			b = "World"
+		}
+		a, b = _obj_0.a, _obj_0.b
 	end
 	local days, hours, mins, secs
 	do
@@ -305,41 +289,33 @@ do
 			end
 		end
 	end
-	do
-		local _tmp_0
-		do
-			local _obj_0 = getmetatable(tb)
-			_tmp_0 = _obj_0.func
+	local _tmp_0
+	local _obj_0 = getmetatable(tb)
+	_tmp_0 = _obj_0.func
+	if _tmp_0 == nil then
+		local _obj_1 = item
+		if _obj_1 ~= nil then
+			_tmp_0 = _obj_1.defVal
 		end
-		if _tmp_0 == nil then
-			local _obj_0 = item
-			if _obj_0 ~= nil then
-				_tmp_0 = _obj_0.defVal
-			end
-		end
-		a.b(function()
-			return 123
-		end).c = _tmp_0
 	end
+	a.b(function()
+		return 123
+	end).c = _tmp_0
 end
 do
 	local mt, subFunc
-	do
-		local _obj_0 = getmetatable(tb.x)
-		mt, subFunc = _obj_0, _obj_0.__sub
-		if mt == nil then
-			mt = { }
-		end
+	local _obj_0 = getmetatable(tb.x)
+	mt, subFunc = _obj_0, _obj_0.__sub
+	if mt == nil then
+		mt = { }
 	end
 end
 do
 	local mt, subFunc
-	do
-		local _obj_0 = tb
-		mt, subFunc = getmetatable(_obj_0.x), getmetatable(_obj_0.x).__sub
-		if mt == nil then
-			mt = { }
-		end
+	local _obj_0 = tb
+	mt, subFunc = getmetatable(_obj_0.x), getmetatable(_obj_0.x).__sub
+	if mt == nil then
+		mt = { }
 	end
 end
 do
@@ -386,31 +362,25 @@ do
 end
 do
 	local a, b
-	do
-		local _obj_0 = tb
-		a, b = _obj_0[2], _obj_0[4]
-	end
+	local _obj_0 = tb
+	a, b = _obj_0[2], _obj_0[4]
 end
 do
 	local a, b
-	do
-		local _obj_0 = tb
-		a, b = _obj_0[1], _obj_0[3]
-	end
+	local _obj_0 = tb
+	a, b = _obj_0[1], _obj_0[3]
 end
 do
-	do
-		local _obj_0 = x.x.x
-		local _tmp_0, _tmp_1 = _obj_0.x, _obj_0.y
-		if _tmp_0 == nil then
-			_tmp_0 = 1
-		end
-		if _tmp_1 == nil then
-			_tmp_1 = 2
-		end
-		a.b = _tmp_0
-		a.c = _tmp_1
+	local _obj_0 = x.x.x
+	local _tmp_0, _tmp_1 = _obj_0.x, _obj_0.y
+	if _tmp_0 == nil then
+		_tmp_0 = 1
 	end
+	if _tmp_1 == nil then
+		_tmp_1 = 2
+	end
+	a.b = _tmp_0
+	a.c = _tmp_1
 end
 do
 	local width, height
@@ -419,15 +389,13 @@ do
 		width, height = _obj_0.width, _obj_0.height
 	end
 	local x, y
-	do
-		local _obj_0 = point
-		x, y = _obj_0.x, _obj_0.y
-		if x == nil then
-			x = 0.0
-		end
-		if y == nil then
-			y = 0.0
-		end
+	local _obj_0 = point
+	x, y = _obj_0.x, _obj_0.y
+	if x == nil then
+		x = 0.0
+	end
+	if y == nil then
+		y = 0.0
 	end
 end
 do
@@ -451,29 +419,25 @@ do
 end
 do
 	local v1, v2, v3, v4
-	do
-		local _obj_0 = tb
-		local _tmp_0, _tmp_1 = 1 + 1, self.x
-		v1, v2, v3, v4 = _obj_0[ [["abc"]]], _obj_0[_tmp_0][1], _obj_0[_tmp_0][2], _obj_0[_tmp_1]
-		if v1 == nil then
-			v1 = 111
-		end
-		if v2 == nil then
-			v2 = 222
-		end
-		if v3 == nil then
-			v3 = 333
-		end
-		if v4 == nil then
-			v4 = 444
-		end
+	local _obj_0 = tb
+	local _tmp_0, _tmp_1 = 1 + 1, self.x
+	v1, v2, v3, v4 = _obj_0[ [["abc"]]], _obj_0[_tmp_0][1], _obj_0[_tmp_0][2], _obj_0[_tmp_1]
+	if v1 == nil then
+		v1 = 111
 	end
-	local v5, v6, v7
-	do
-		local _obj_0 = tb2
-		local _tmp_2, _tmp_3 = func(), func2()
-		v5, v6, v7 = _obj_0['x-y-z'], _obj_0[_tmp_2][_tmp_3], _obj_0[_tmp_2][1]
+	if v2 == nil then
+		v2 = 222
+	end
+	if v3 == nil then
+		v3 = 333
+	end
+	if v4 == nil then
+		v4 = 444
 	end
+	local v5, v6, v7
+	local _obj_1 = tb2
+	local _tmp_2, _tmp_3 = func(), func2()
+	v5, v6, v7 = _obj_1['x-y-z'], _obj_1[_tmp_2][_tmp_3], _obj_1[_tmp_2][1]
 end
 do
 	local value, value_meta
@@ -512,16 +476,12 @@ do
 end
 do
 	local tb = { }
-	do
-		local _tmp_0 = c()
-		local v2 = tb[_tmp_0]
-	end
+	local _tmp_0 = c()
+	local v2 = tb[_tmp_0]
 	local v1
-	do
-		local _obj_0 = getmetatable(tb)
-		local _tmp_1 = a + b
-		v1 = _obj_0[_tmp_1]
-	end
+	local _obj_0 = getmetatable(tb)
+	local _tmp_1 = a + b
+	v1 = _obj_0[_tmp_1]
 end
 do
 	local add, field
diff --git a/spec/outputs/import.lua b/spec/outputs/import.lua
index ffe688b..83c99e2 100644
--- a/spec/outputs/import.lua
+++ b/spec/outputs/import.lua
@@ -149,10 +149,8 @@ do
 end
 do
 	local func, ifVar
-	do
-		local _obj_1 = require("org.package.module")
-		func, ifVar = _obj_1["function"], _obj_1["if"]
-	end
+	local _obj_1 = require("org.package.module")
+	func, ifVar = _obj_1["function"], _obj_1["if"]
 end
 do
 	local b = getmetatable(require("m")).__gc
@@ -165,8 +163,6 @@ do
 	end
 	local d = require("m").c
 	local g, i
-	do
-		local _obj_1 = require("m")
-		g, i = _obj_1[1], getmetatable(_obj_1[2]).__close
-	end
+	local _obj_1 = require("m")
+	g, i = _obj_1[1], getmetatable(_obj_1[2]).__close
 end
diff --git a/spec/outputs/lists.lua b/spec/outputs/lists.lua
index e2d512d..48ec9c8 100644
--- a/spec/outputs/lists.lua
+++ b/spec/outputs/lists.lua
@@ -318,15 +318,13 @@ end
 do
 	a, b = hello[1], hello[2]
 	local name, job
-	do
-		local _obj_0 = person
-		name, job = _obj_0[1], _obj_0[2]
-		if name == nil then
-			name = "nameless"
-		end
-		if job == nil then
-			job = "jobless"
-		end
+	local _obj_0 = person
+	name, job = _obj_0[1], _obj_0[2]
+	if name == nil then
+		name = "nameless"
+	end
+	if job == nil then
+		job = "jobless"
 	end
 end
 return nil
diff --git a/spec/outputs/local.lua b/spec/outputs/local.lua
index 5d215e0..c5b3931 100644
--- a/spec/outputs/local.lua
+++ b/spec/outputs/local.lua
@@ -55,10 +55,8 @@ do
 		k = 10
 	end
 	x = 100
-	do
-		local _obj_0 = y
-		a, b, c = _obj_0.a, _obj_0.b, _obj_0.c
-	end
+	local _obj_0 = y
+	a, b, c = _obj_0.a, _obj_0.b, _obj_0.c
 end
 do
 	local a, b, c, d
diff --git a/spec/outputs/metatable.lua b/spec/outputs/metatable.lua
index 78de433..6af10e5 100644
--- a/spec/outputs/metatable.lua
+++ b/spec/outputs/metatable.lua
@@ -51,15 +51,11 @@ do
 	local _obj_0, _obj_1
 	x, _obj_0, _obj_1 = 123, a.b.c, func()
 	new, var = _obj_0.new, _obj_0.var
-	do
-		local _obj_2 = getmetatable(_obj_0)
-		close, closeA = _obj_2.__close, _obj_2.__close
-	end
+	local _obj_2 = getmetatable(_obj_0)
+	close, closeA = _obj_2.__close, _obj_2.__close
 	num = _obj_1.num
-	do
-		local _obj_2 = getmetatable(_obj_1)
-		add, sub = _obj_2.__add, _obj_2.__sub
-	end
+	local _obj_3 = getmetatable(_obj_1)
+	add, sub = _obj_3.__add, _obj_3.__sub
 end
 setmetatable(a.b, { })
 x.abc = 123
@@ -107,17 +103,13 @@ index = getmetatable(a).__index
 index = getmetatable(a).__index
 do
 	local ctor, update
-	do
-		local _obj_0 = getmetatable(a)
-		ctor, update = _obj_0.new, _obj_0.update
-	end
+	local _obj_0 = getmetatable(a)
+	ctor, update = _obj_0.new, _obj_0.update
 end
 do
 	local ctor, update
-	do
-		local _obj_0 = getmetatable(a)
-		ctor, update = _obj_0.new, _obj_0.update
-	end
+	local _obj_0 = getmetatable(a)
+	ctor, update = _obj_0.new, _obj_0.update
 end
 local tb = { }
 do
diff --git a/spec/outputs/unicode/assign.lua b/spec/outputs/unicode/assign.lua
index 16ece1a..cb53159 100644
--- a/spec/outputs/unicode/assign.lua
+++ b/spec/outputs/unicode/assign.lua
@@ -54,15 +54,11 @@ return __u65e0_u6548_u53d8_u91cf(function()
 		local _u5143_u7d20a, _u5143_u7d20b
 		local _exp_0 = _u5bf9_u8c61c
 		if "a" == _exp_0 then
-			do
-				local _obj_0 = _u5b57_u5178
-				_u5143_u7d20a, _u5143_u7d20b = _obj_0[1], _obj_0[2]
-			end
+			local _obj_0 = _u5b57_u5178
+			_u5143_u7d20a, _u5143_u7d20b = _obj_0[1], _obj_0[2]
 		elseif "b" == _exp_0 then
-			do
-				local _obj_0 = _u51fd_u6570()
-				_u5143_u7d20a, _u5143_u7d20b = _obj_0[1], _obj_0[2]
-			end
+			local _obj_0 = _u51fd_u6570()
+			_u5143_u7d20a, _u5143_u7d20b = _obj_0[1], _obj_0[2]
 		end
 	end
 	do
diff --git a/spec/outputs/unicode/backcall.lua b/spec/outputs/unicode/backcall.lua
index f4bd5a3..85d7592 100644
--- a/spec/outputs/unicode/backcall.lua
+++ b/spec/outputs/unicode/backcall.lua
@@ -82,15 +82,13 @@ end
 do
 	local _u7ed3_u679c, _u6d88_u606f
 	do
-		do
-			local _obj_0 = _u5f02_u6b65_u63a5_u6536("文件名.txt", function(_u6570_u636e)
-				_u6253_u5370(_u6570_u636e)
-				return _u5f02_u6b65_u5904_u7406(_u6570_u636e, function(_u4fe1_u606f)
-					return _u68c0_u67e5(_u4fe1_u606f)
-				end)
+		local _obj_0 = _u5f02_u6b65_u63a5_u6536("文件名.txt", function(_u6570_u636e)
+			_u6253_u5370(_u6570_u636e)
+			return _u5f02_u6b65_u5904_u7406(_u6570_u636e, function(_u4fe1_u606f)
+				return _u68c0_u67e5(_u4fe1_u606f)
 			end)
-			_u7ed3_u679c, _u6d88_u606f = _obj_0["结果"], _obj_0["消息"]
-		end
+		end)
+		_u7ed3_u679c, _u6d88_u606f = _obj_0["结果"], _obj_0["消息"]
 	end
 	_u6253_u5370(_u7ed3_u679c, _u6d88_u606f)
 	local _u603b_u5927_u5c0f = _u5408_u5e76(((function()
diff --git a/spec/outputs/unicode/cond.lua b/spec/outputs/unicode/cond.lua
index 2b5af8a..7229001 100644
--- a/spec/outputs/unicode/cond.lua
+++ b/spec/outputs/unicode/cond.lua
@@ -320,10 +320,8 @@ do
 			__u6a21_u5757 = _des_0
 			local _u4e1c_u897f = __u6a21_u5757["东西"]
 			local a_u529f_u80fd, b_u529f_u80fd
-			do
-				local _obj_0 = __u6a21_u5757
-				a_u529f_u80fd, b_u529f_u80fd = _obj_0["a功能"], _obj_0["b功能"]
-			end
+			local _obj_0 = __u6a21_u5757
+			a_u529f_u80fd, b_u529f_u80fd = _obj_0["a功能"], _obj_0["b功能"]
 		end
 	end
 end
diff --git a/spec/outputs/unicode/destructure.lua b/spec/outputs/unicode/destructure.lua
index 7263d49..e1cd6ae 100644
--- a/spec/outputs/unicode/destructure.lua
+++ b/spec/outputs/unicode/destructure.lua
@@ -10,10 +10,8 @@ do
 		_u5143_u7d20a, _u5143_u7d20b, _u5143_u7d20c = _obj_0[1][1], _obj_0[2], _obj_0[3][1]
 	end
 	local _u4f60_u597d, _u4e16_u754c
-	do
-		local _obj_0 = _u503c
-		_u4f60_u597d, _u4e16_u754c = _obj_0["你好"], _obj_0["世界"]
-	end
+	local _obj_0 = _u503c
+	_u4f60_u597d, _u4e16_u754c = _obj_0["你好"], _obj_0["世界"]
 end
 do
 	local _u5426, _u4e1c_u897f
@@ -50,17 +48,13 @@ do
 	end
 	do
 		_u53d8_u91cfc = nil
-		do
-			local _obj_0 = _u8868
-			_u5b57_u6bb5a, _u5b57_u6bb5b = _obj_0["字段a"], _obj_0["字段b"]
-		end
+		local _obj_0 = _u8868
+		_u5b57_u6bb5a, _u5b57_u6bb5b = _obj_0["字段a"], _obj_0["字段b"]
 	end
 	do
 		local _u53d8_u91cfa = _u8868
-		do
-			local _obj_0 = __u65e0_u6548_u53d8_u91cf
-			_u5b57_u6bb5b, _u5b57_u6bb5c = _obj_0["字段b"], _obj_0["字段c"]
-		end
+		local _obj_0 = __u65e0_u6548_u53d8_u91cf
+		_u5b57_u6bb5b, _u5b57_u6bb5c = _obj_0["字段b"], _obj_0["字段c"]
 	end
 	do
 		_u53d8_u91cfb = __u65e0_u6548_u53d8_u91cf
@@ -89,17 +83,13 @@ do
 end
 do
 	local _u53d8_u91cfc, _u53d8_u91cfe
-	do
-		local _obj_0 = _u5bf9_u8c61tb
-		_u53d8_u91cfc, _u53d8_u91cfe = _obj_0["字段a"]["字段b"], _obj_0["字段a"]["字段d"]
-	end
+	local _obj_0 = _u5bf9_u8c61tb
+	_u53d8_u91cfc, _u53d8_u91cfe = _obj_0["字段a"]["字段b"], _obj_0["字段a"]["字段d"]
 end
 do
 	local _u53d8_u91cfc, _u53d8_u91cfe, _u5143_u7d20f
-	do
-		local _obj_0 = _u5bf9_u8c61tb
-		_u53d8_u91cfc, _u53d8_u91cfe, _u5143_u7d20f = _obj_0["字段a"][1]["字段b"], _obj_0["字段a"][2]["字段d"], _obj_0["字段a"][3]
-	end
+	local _obj_0 = _u5bf9_u8c61tb
+	_u53d8_u91cfc, _u53d8_u91cfe, _u5143_u7d20f = _obj_0["字段a"][1]["字段b"], _obj_0["字段a"][2]["字段d"], _obj_0["字段a"][3]
 end
 do
 	self["世界"] = _u53d8_u91cfx[1]
@@ -165,10 +155,8 @@ do
 end
 do
 	local _u5143_u7d20a, _u5143_u7d20b, _u5143_u7d20c
-	do
-		local _obj_0 = _u53d8_u91cfz
-		_u5143_u7d20a, _u5143_u7d20b, _u5143_u7d20c = _obj_0[1], _obj_0[2], _obj_0[3]
-	end
+	local _obj_0 = _u53d8_u91cfz
+	_u5143_u7d20a, _u5143_u7d20b, _u5143_u7d20c = _obj_0[1], _obj_0[2], _obj_0[3]
 end
 local _
 _ = function(_u53c2_u6570z)
@@ -178,10 +166,8 @@ do
 	local _u53d8_u91cfz = "〇〇"
 	_ = function(_u53c2_u6570k)
 		local _u5143_u7d20a, _u5143_u7d20b, _u5143_u7d20c
-		do
-			local _obj_0 = _u53c2_u6570z
-			_u5143_u7d20a, _u5143_u7d20b, _u5143_u7d20c = _obj_0[1], _obj_0[2], _obj_0[3]
-		end
+		local _obj_0 = _u53c2_u6570z
+		_u5143_u7d20a, _u5143_u7d20b, _u5143_u7d20c = _obj_0[1], _obj_0[2], _obj_0[3]
 	end
 end
 do
@@ -189,21 +175,17 @@ do
 end
 do
 	local _u5143_u7d20a, _u5143_u7d20b, _u5143_u7d20c
-	do
-		local _obj_0 = _u4e1c_u897f
-		_u5143_u7d20a, _u5143_u7d20b, _u5143_u7d20c = _obj_0["如果"][1], _obj_0["如果"][2], _obj_0["如果"][3]
-	end
+	local _obj_0 = _u4e1c_u897f
+	_u5143_u7d20a, _u5143_u7d20b, _u5143_u7d20c = _obj_0["如果"][1], _obj_0["如果"][2], _obj_0["如果"][3]
 end
 do
 	local _u5b57_u6bb5a, _u5b57_u6bb5b
 	if true then
-		do
-			local _obj_0 = {
-				["字段a"] = "你好",
-				["字段b"] = "世界"
-			}
-			_u5b57_u6bb5a, _u5b57_u6bb5b = _obj_0["字段a"], _obj_0["字段b"]
-		end
+		local _obj_0 = {
+			["字段a"] = "你好",
+			["字段b"] = "世界"
+		}
+		_u5b57_u6bb5a, _u5b57_u6bb5b = _obj_0["字段a"], _obj_0["字段b"]
 	end
 	local _u5929, _u5c0f_u65f6, _u5206_u949f, _u79d2
 	do
@@ -311,41 +293,33 @@ do
 			end
 		end
 	end
-	do
-		local _tmp_0
-		do
-			local _obj_0 = getmetatable(_u5bf9_u8c61tb)
-			_tmp_0 = _obj_0["函数"]
+	local _tmp_0
+	local _obj_0 = getmetatable(_u5bf9_u8c61tb)
+	_tmp_0 = _obj_0["函数"]
+	if _tmp_0 == nil then
+		local _obj_1 = _u9879_u76ee
+		if _obj_1 ~= nil then
+			_tmp_0 = _obj_1["默认值"]
 		end
-		if _tmp_0 == nil then
-			local _obj_0 = _u9879_u76ee
-			if _obj_0 ~= nil then
-				_tmp_0 = _obj_0["默认值"]
-			end
-		end
-		a_u5bf9_u8c61["b字段"](function()
-			return 123
-		end)["字段c"] = _tmp_0
 	end
+	a_u5bf9_u8c61["b字段"](function()
+		return 123
+	end)["字段c"] = _tmp_0
 end
 do
 	local _u5143_u8868, _u51cf_u51fd_u6570
-	do
-		local _obj_0 = getmetatable(_u5bf9_u8c61tb["字段x"])
-		_u5143_u8868, _u51cf_u51fd_u6570 = _obj_0, _obj_0.__sub
-		if _u5143_u8868 == nil then
-			_u5143_u8868 = { }
-		end
+	local _obj_0 = getmetatable(_u5bf9_u8c61tb["字段x"])
+	_u5143_u8868, _u51cf_u51fd_u6570 = _obj_0, _obj_0.__sub
+	if _u5143_u8868 == nil then
+		_u5143_u8868 = { }
 	end
 end
 do
 	local _u5143_u8868, _u51cf_u51fd_u6570
-	do
-		local _obj_0 = _u5bf9_u8c61tb
-		_u5143_u8868, _u51cf_u51fd_u6570 = getmetatable(_obj_0["x字段"]), getmetatable(_obj_0["x字段"]).__sub
-		if _u5143_u8868 == nil then
-			_u5143_u8868 = { }
-		end
+	local _obj_0 = _u5bf9_u8c61tb
+	_u5143_u8868, _u51cf_u51fd_u6570 = getmetatable(_obj_0["x字段"]), getmetatable(_obj_0["x字段"]).__sub
+	if _u5143_u8868 == nil then
+		_u5143_u8868 = { }
 	end
 end
 do
@@ -380,24 +354,20 @@ do
 end
 do
 	local a_u5143_u7d20, b_u5143_u7d20
-	do
-		local _obj_0 = _u5bf9_u8c61tb
-		a_u5143_u7d20, b_u5143_u7d20 = _obj_0[2], _obj_0[4]
-	end
+	local _obj_0 = _u5bf9_u8c61tb
+	a_u5143_u7d20, b_u5143_u7d20 = _obj_0[2], _obj_0[4]
 end
 do
-	do
-		local _obj_0 = _u5bf9_u8c61x["字段x"]["字段x"]
-		local _tmp_0, _tmp_1 = _obj_0["字段x"], _obj_0["y字段"]
-		if _tmp_0 == nil then
-			_tmp_0 = 1
-		end
-		if _tmp_1 == nil then
-			_tmp_1 = 2
-		end
-		_u5bf9_u8c61a["字段b"] = _tmp_0
-		a_u5bf9_u8c61["c字段"] = _tmp_1
+	local _obj_0 = _u5bf9_u8c61x["字段x"]["字段x"]
+	local _tmp_0, _tmp_1 = _obj_0["字段x"], _obj_0["y字段"]
+	if _tmp_0 == nil then
+		_tmp_0 = 1
 	end
+	if _tmp_1 == nil then
+		_tmp_1 = 2
+	end
+	_u5bf9_u8c61a["字段b"] = _tmp_0
+	a_u5bf9_u8c61["c字段"] = _tmp_1
 end
 do
 	local _u5bbd, _u9ad8
@@ -406,15 +376,13 @@ do
 		_u5bbd, _u9ad8 = _obj_0["宽"], _obj_0["高"]
 	end
 	local x_u5750_u6807, y_u5750_u6807
-	do
-		local _obj_0 = _u70b9
-		x_u5750_u6807, y_u5750_u6807 = _obj_0["x坐标"], _obj_0["y坐标"]
-		if x_u5750_u6807 == nil then
-			x_u5750_u6807 = 0.0
-		end
-		if y_u5750_u6807 == nil then
-			y_u5750_u6807 = 0.0
-		end
+	local _obj_0 = _u70b9
+	x_u5750_u6807, y_u5750_u6807 = _obj_0["x坐标"], _obj_0["y坐标"]
+	if x_u5750_u6807 == nil then
+		x_u5750_u6807 = 0.0
+	end
+	if y_u5750_u6807 == nil then
+		y_u5750_u6807 = 0.0
 	end
 end
 do
@@ -438,29 +406,25 @@ do
 end
 do
 	local _u53d8_u91cfv1, _u53d8_u91cfv2, _u53d8_u91cfv3, _u53d8_u91cfv4
-	do
-		local _obj_0 = _u5bf9_u8c61tb
-		local _tmp_0, _tmp_1 = 1 + 1, self.x
-		_u53d8_u91cfv1, _u53d8_u91cfv2, _u53d8_u91cfv3, _u53d8_u91cfv4 = _obj_0[ [["abc"]]], _obj_0[_tmp_0][1], _obj_0[_tmp_0][2], _obj_0[_tmp_1]
-		if _u53d8_u91cfv1 == nil then
-			_u53d8_u91cfv1 = 111
-		end
-		if _u53d8_u91cfv2 == nil then
-			_u53d8_u91cfv2 = 222
-		end
-		if _u53d8_u91cfv3 == nil then
-			_u53d8_u91cfv3 = 333
-		end
-		if _u53d8_u91cfv4 == nil then
-			_u53d8_u91cfv4 = 444
-		end
+	local _obj_0 = _u5bf9_u8c61tb
+	local _tmp_0, _tmp_1 = 1 + 1, self.x
+	_u53d8_u91cfv1, _u53d8_u91cfv2, _u53d8_u91cfv3, _u53d8_u91cfv4 = _obj_0[ [["abc"]]], _obj_0[_tmp_0][1], _obj_0[_tmp_0][2], _obj_0[_tmp_1]
+	if _u53d8_u91cfv1 == nil then
+		_u53d8_u91cfv1 = 111
 	end
-	local _u53d8_u91cfv5, _u53d8_u91cfv6, _u53d8_u91cfv7
-	do
-		local _obj_0 = _u5bf9_u8c61tb2
-		local _tmp_2, _tmp_3 = _u51fd_u6570(), _u51fd_u65702()
-		_u53d8_u91cfv5, _u53d8_u91cfv6, _u53d8_u91cfv7 = _obj_0['x-y-z'], _obj_0[_tmp_2][_tmp_3], _obj_0[_tmp_2][1]
+	if _u53d8_u91cfv2 == nil then
+		_u53d8_u91cfv2 = 222
+	end
+	if _u53d8_u91cfv3 == nil then
+		_u53d8_u91cfv3 = 333
+	end
+	if _u53d8_u91cfv4 == nil then
+		_u53d8_u91cfv4 = 444
 	end
+	local _u53d8_u91cfv5, _u53d8_u91cfv6, _u53d8_u91cfv7
+	local _obj_1 = _u5bf9_u8c61tb2
+	local _tmp_2, _tmp_3 = _u51fd_u6570(), _u51fd_u65702()
+	_u53d8_u91cfv5, _u53d8_u91cfv6, _u53d8_u91cfv7 = _obj_1['x-y-z'], _obj_1[_tmp_2][_tmp_3], _obj_1[_tmp_2][1]
 end
 do
 	local _u503c, _u5143_u503c
@@ -499,16 +463,12 @@ do
 end
 do
 	local _u5bf9_u8c61tb = { }
-	do
-		local _tmp_0 = _u51fd_u6570c()
-		local _u53d8_u91cfv2 = _u5bf9_u8c61tb[_tmp_0]
-	end
+	local _tmp_0 = _u51fd_u6570c()
+	local _u53d8_u91cfv2 = _u5bf9_u8c61tb[_tmp_0]
 	local _u53d8_u91cfv1
-	do
-		local _obj_0 = getmetatable(_u5bf9_u8c61tb)
-		local _tmp_1 = _u53d8_u91cfa + _u53d8_u91cfb
-		_u53d8_u91cfv1 = _obj_0[_tmp_1]
-	end
+	local _obj_0 = getmetatable(_u5bf9_u8c61tb)
+	local _tmp_1 = _u53d8_u91cfa + _u53d8_u91cfb
+	_u53d8_u91cfv1 = _obj_0[_tmp_1]
 end
 do
 	local add, _u5b57_u6bb5
diff --git a/spec/outputs/unicode/import.lua b/spec/outputs/unicode/import.lua
index e4aec89..7c31ceb 100644
--- a/spec/outputs/unicode/import.lua
+++ b/spec/outputs/unicode/import.lua
@@ -87,10 +87,8 @@ do
 end
 do
 	local _u51fd_u6570, _u5982_u679c_u53d8_u91cf
-	do
-		local _obj_1 = require("组织.包.模块")
-		_u51fd_u6570, _u5982_u679c_u53d8_u91cf = _obj_1["函数体"], _obj_1["如果"]
-	end
+	local _obj_1 = require("组织.包.模块")
+	_u51fd_u6570, _u5982_u679c_u53d8_u91cf = _obj_1["函数体"], _obj_1["如果"]
 end
 do
 	local _u53d8_u91cfb = getmetatable(require("块")).__gc
@@ -103,8 +101,6 @@ do
 	end
 	local _u53d8_u91cfd = require("块")["字段c"]
 	local _u5143_u7d20g, _u53d8_u91cfi
-	do
-		local _obj_1 = require("块")
-		_u5143_u7d20g, _u53d8_u91cfi = _obj_1[1], getmetatable(_obj_1[2]).__close
-	end
+	local _obj_1 = require("块")
+	_u5143_u7d20g, _u53d8_u91cfi = _obj_1[1], getmetatable(_obj_1[2]).__close
 end
diff --git a/spec/outputs/unicode/local.lua b/spec/outputs/unicode/local.lua
index 4b4b366..194fd06 100644
--- a/spec/outputs/unicode/local.lua
+++ b/spec/outputs/unicode/local.lua
@@ -55,10 +55,8 @@ do
 		_u53d8_u91cfk = 10
 	end
 	_u53d8_u91cfx = 100
-	do
-		local _obj_0 = _u53d8_u91cfy
-		_u53d8_u91cfa, _u53d8_u91cfb, _u53d8_u91cfc = _obj_0[1], _obj_0[2], _obj_0[3]
-	end
+	local _obj_0 = _u53d8_u91cfy
+	_u53d8_u91cfa, _u53d8_u91cfb, _u53d8_u91cfc = _obj_0[1], _obj_0[2], _obj_0[3]
 end
 do
 	local _u53d8_u91cfa, _u53d8_u91cfb, _u53d8_u91cfc, _u53d8_u91cfd
diff --git a/spec/outputs/unicode/metatable.lua b/spec/outputs/unicode/metatable.lua
index c7c8730..ca48d0d 100644
--- a/spec/outputs/unicode/metatable.lua
+++ b/spec/outputs/unicode/metatable.lua
@@ -51,15 +51,11 @@ do
 	local _obj_0, _obj_1
 	_u53d8_u91cfx, _obj_0, _obj_1 = 123, _u53d8_u91cfa["变量b"]["变量c"], _u51fd_u6570()
 	_u65b0, _u53d8_u91cf = _obj_0["新"], _obj_0["变量"]
-	do
-		local _obj_2 = getmetatable(_obj_0)
-		close, _u5173_u95edA = _obj_2.__close, _obj_2.__close
-	end
+	local _obj_2 = getmetatable(_obj_0)
+	close, _u5173_u95edA = _obj_2.__close, _obj_2.__close
 	num = _obj_1.num
-	do
-		local _obj_2 = getmetatable(_obj_1)
-		add, sub = _obj_2.__add, _obj_2.__sub
-	end
+	local _obj_3 = getmetatable(_obj_1)
+	add, sub = _obj_3.__add, _obj_3.__sub
 end
 setmetatable(_u53d8_u91cfa["变量b"], { })
 _u53d8_u91cfx.abc = 123
@@ -108,17 +104,13 @@ local _u7d22_u5f15 = getmetatable(_u53d8_u91cfa).__index
 index = getmetatable(_u53d8_u91cfa).__index
 do
 	local _u6784_u9020, _u66f4_u65b0
-	do
-		local _obj_0 = getmetatable(_u53d8_u91cfa)
-		_u6784_u9020, _u66f4_u65b0 = _obj_0["新"], _obj_0["更新"]
-	end
+	local _obj_0 = getmetatable(_u53d8_u91cfa)
+	_u6784_u9020, _u66f4_u65b0 = _obj_0["新"], _obj_0["更新"]
 end
 do
 	local _u6784_u9020, _u66f4_u65b0
-	do
-		local _obj_0 = getmetatable(_u53d8_u91cfa)
-		_u6784_u9020, _u66f4_u65b0 = _obj_0["新"], _obj_0["更新"]
-	end
+	local _obj_0 = getmetatable(_u53d8_u91cfa)
+	_u6784_u9020, _u66f4_u65b0 = _obj_0["新"], _obj_0["更新"]
 end
 local _u8868 = { }
 do
-- 
cgit v1.2.3-55-g6feb