remove one more redundant 'do' block from destructuring.

1 files changed, 79 insertions, 119 deletions

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