add unicode identifier support, fix more issue from #144

1 files changed, 637 insertions, 0 deletions

diff --git a/spec/outputs/unicode/destructure.lua b/spec/outputs/unicode/destructure.lua
new file mode 100644
index 0000000..002c4b0
--- /dev/null
+++ b/spec/outputs/unicode/destructure.lua
@@ -0,0 +1,637 @@
+do
+        local _u5143_u7d20a, _u5143_u7d20b
+        do
+                local _obj_0 = _u4f60_u597d
+                _u5143_u7d20a, _u5143_u7d20b = _obj_0[1], _obj_0[2]
+        end
+        local _u5143_u7d20c
+        do
+                local _obj_0 = _u4f60_u597d
+                _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
+end
+do
+        local _u5426, _u4e1c_u897f
+        do
+                local _obj_0 = _u4e16_u754c
+                _u5426, _u4e1c_u897f = _obj_0["是"], _obj_0[1]
+        end
+        local _u5b57_u6bb5a, _u5b57_u6bb5b, _u5b57_u6bb5c, d_u5b57_u6bb5
+        do
+                local _obj_0 = _u597d
+                _u5b57_u6bb5a, _u5b57_u6bb5b, _u5b57_u6bb5c, d_u5b57_u6bb5 = _obj_0["字段a"], _obj_0["字段b"], _obj_0["字段c"], _obj_0["d字段"]
+        end
+        local _u53d8_u91cfb = _u4e8c
+        local a_u5143_u7d20 = _u4e00[1]
+        local _u53d8_u91cfc = nil
+        local b_u5143_u7d20 = _u4e00[1]
+        local _u53d8_u91cfe = _u4e8c
+        local d_u5143_u7d20 = _u4e00[1]
+        local _u53d8_u91cfx = _u4e00
+        local _u5143_u7d20y = _u4e8c[1]
+        local _u53d8_u91cfxx, _u53d8_u91cfyy = 1, 2
+        local _u5143_u7d20yy, _u5143_u7d20xx
+        do
+                local _obj_0 = {
+                        _u53d8_u91cfxx,
+                        _u53d8_u91cfyy
+                }
+                _u5143_u7d20yy, _u5143_u7d20xx = _obj_0[1], _obj_0[2]
+        end
+        local _u5143_u7d20a, _u5143_u7d20c, _u5b57_u6bb5d, _u5143_u7d20e, _u5b57_u6bb5f, _u5143_u7d20g
+        do
+                local _obj_0 = _u8868
+                _u5143_u7d20a, _u5b57_u6bb5b, _u5143_u7d20c, _u5b57_u6bb5d, _u5143_u7d20e, _u5b57_u6bb5f, _u5143_u7d20g = _obj_0[1], _obj_0["字段b"], _obj_0[2], _obj_0["字段d"], _obj_0[3], _obj_0["字段f"], _obj_0[4]
+        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
+        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
+        end
+        do
+                _u53d8_u91cfb = __u65e0_u6548_u53d8_u91cf
+                _u5b57_u6bb5a = _u8868["字段a"]
+                _u5b57_u6bb5c = __u65e0_u6548_u53d8_u91cf["字段c"]
+        end
+end
+do
+        local _u672a_u6765_u4eba_u4eec = {
+                ["雕刻家"] = "翁贝托·博乔尼",
+                ["画家"] = "弗拉基米尔·伯留克",
+                ["诗人"] = {
+                        ["姓名"] = "F.T.马里内蒂",
+                        ["地址"] = {
+                                "罗马42R大街",
+                                "贝拉焦，意大利 22021"
+                        }
+                }
+        }
+        do
+                local _u59d3_u540d, _u8857_u9053, _u57ce_u5e02 = _u672a_u6765_u4eba_u4eec["诗人"]["姓名"], _u672a_u6765_u4eba_u4eec["诗人"]["地址"][1], _u672a_u6765_u4eba_u4eec["诗人"]["地址"][2]
+        end
+        do
+                local _u96d5_u523b_u5bb6, _u753b_u5bb6, _u59d3_u540d, _u8857_u9053, _u57ce_u5e02 = _u672a_u6765_u4eba_u4eec["雕刻家"], _u672a_u6765_u4eba_u4eec["画家"], _u672a_u6765_u4eba_u4eec["诗人"]["姓名"], _u672a_u6765_u4eba_u4eec["诗人"]["地址"][1], _u672a_u6765_u4eba_u4eec["诗人"]["地址"][2]
+        end
+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
+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
+end
+do
+        self["世界"] = _u53d8_u91cfx[1]
+        do
+                local _obj_0 = _u53d8_u91cfx
+                _u5bf9_u8c61a["字段b"], _u5bf9_u8c61c["字段y"], _u51fd_u6570()["字段z"] = _obj_0[1], _obj_0[2], _obj_0[3]
+        end
+        self["世界"] = _u53d8_u91cfx["世界"]
+end
+do
+        local _u4e1c_u897f = {
+                {
+                        1,
+                        2
+                },
+                {
+                        3,
+                        4
+                }
+        }
+        for _index_0 = 1, #_u4e1c_u897f do
+                local _des_0 = _u4e1c_u897f[_index_0]
+                local _u5143_u7d20x, _u5143_u7d20y = _des_0[1], _des_0[2]
+                _u6253_u5370(_u5143_u7d20x, _u5143_u7d20y)
+        end
+end
+do
+        do
+                local _with_0 = _u4e1c_u897f
+                local _u5143_u7d20a, _u5143_u7d20b = _with_0[1], _with_0[2]
+                _u6253_u5370(_u5143_u7d20a, _u5143_u7d20b)
+        end
+end
+do
+        local _u4e1c_u897f = nil
+        if _u4e1c_u897f then
+                local _u5143_u7d20a = _u4e1c_u897f[1]
+                _u6253_u5370(_u5143_u7d20a)
+        else
+                _u6253_u5370("没东西")
+        end
+        local _u4e1c_u4e1c = {
+                1,
+                2
+        }
+        if _u4e1c_u4e1c then
+                local _u5143_u7d20a, _u5143_u7d20b = _u4e1c_u4e1c[1], _u4e1c_u4e1c[2]
+                _u6253_u5370(_u5143_u7d20a, _u5143_u7d20b)
+        end
+        if _u4e1c_u897f then
+                local _u5143_u7d20a, _u5143_u7d20b = _u4e1c_u897f[1], _u4e1c_u897f[2]
+                _u6253_u5370(_u5143_u7d20a, _u5143_u7d20b)
+        else
+                if _u4e1c_u4e1c then
+                        local _u5143_u7d20c, _u5143_u7d20d = _u4e1c_u4e1c[1], _u4e1c_u4e1c[2]
+                        _u6253_u5370(_u5143_u7d20c, _u5143_u7d20d)
+                else
+                        _u6253_u5370("不")
+                end
+        end
+end
+do
+        local _u53d8_u91cfz = "好"
+        local _u5143_u7d20a, _u5143_u7d20b, _u5143_u7d20c = _u53d8_u91cfz[1], _u53d8_u91cfz[2], _u53d8_u91cfz[3]
+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
+end
+local _
+_ = function(_u53c2_u6570z)
+        local _u5143_u7d20a, _u5143_u7d20b, _u5143_u7d20c = _u53c2_u6570z[1], _u53c2_u6570z[2], _u53c2_u6570z[3]
+end
+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
+        end
+end
+do
+        local _u7ed3_u675f_u53d8_u91cf = _u4e1c_u897f["函数"]["结束"]
+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
+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
+        end
+        local _u5929, _u5c0f_u65f6, _u5206_u949f, _u79d2
+        do
+                local _accum_0 = { }
+                local _len_0 = 1
+                local _list_0 = {
+                        string.match("1 2 3 4", "(.+)%s(.+)%s(.+)%s(.+)")
+                }
+                for _index_0 = 1, #_list_0 do
+                        local _u5143_u7d20 = _list_0[_index_0]
+                        _accum_0[_len_0] = tonumber(_u5143_u7d20)
+                        _len_0 = _len_0 + 1
+                end
+                _u5929, _u5c0f_u65f6, _u5206_u949f, _u79d2 = _accum_0[1], _accum_0[2], _accum_0[3], _accum_0[4]
+        end
+        local _u4e00, _u4e8c, _u4e09
+        do
+                local _tbl_0 = { }
+                for _u5339_u914d_u7ed3_u679c in (function()
+                        local _call_0 = _u968f_u673a_u5bf9_u8c61
+                        return _call_0["全局匹配"](_call_0, "%S+")
+                end)() do
+                        _tbl_0[_u5339_u914d_u7ed3_u679c] = true
+                end
+                _u4e00, _u4e8c, _u4e09 = _tbl_0["一"], _tbl_0["二"], _tbl_0["三"]
+        end
+        local _u53d8_u91cfb = 123
+        _u5b57_u6bb5a = ((function()
+                local _call_0 = _u5bf9_u8c61a
+                return _call_0["如果"](_call_0, 123)
+        end)() + _u53d8_u91cft)["字段a"]
+end
+do
+        local _u540d_u79f0, _u5de5_u4f5c
+        do
+                local _obj_0 = _u4e2a_u4eba
+                _u540d_u79f0, _u5de5_u4f5c = _obj_0["名称"], _obj_0["工作"]
+                if _u540d_u79f0 == nil then
+                        _u540d_u79f0 = "没名字"
+                end
+                if _u5de5_u4f5c == nil then
+                        _u5de5_u4f5c = "没工作"
+                end
+        end
+        local _u8bf7_u6c42
+        _u8bf7_u6c42 = function(_u5730_u5740, _u9009_u9879)
+                if _u9009_u9879 == nil then
+                        _u9009_u9879 = { }
+                end
+                local _u65b9_u5f0f, _u8bf7_u6c42_u5934, _u53c2_u6570, _u8d1f_u8f7d, _u786e_u8ba4, _u9519_u8bef, _u6700_u7ec8_u5904_u7406 = _u9009_u9879["方式"], _u9009_u9879["请求头"], _u9009_u9879["参数"], _u9009_u9879["负载"], _u9009_u9879["确认"], _u9009_u9879["错误"], _u9009_u9879["最终处理"]
+                if _u65b9_u5f0f == nil then
+                        _u65b9_u5f0f = "GET"
+                end
+                if _u8bf7_u6c42_u5934 == nil then
+                        _u8bf7_u6c42_u5934 = { }
+                end
+                if _u53c2_u6570 == nil then
+                        _u53c2_u6570 = { }
+                end
+                if _u8d1f_u8f7d == nil then
+                        _u8d1f_u8f7d = ""
+                end
+                local _u7ed3_u679c = _u53d1_u8d77_u8bf7_u6c42(_u5730_u5740, _u65b9_u5f0f, _u53c2_u6570, _u8d1f_u8f7d, _u786e_u8ba4, _u9519_u8bef, _u6700_u7ec8_u5904_u7406)
+                return _u7ed3_u679c
+        end
+        local _u503c1, _u952e3
+        do
+                local _obj_0 = _u5bf9_u8c61tb
+                _u503c1, _u952e3 = _obj_0["键1"]["键2"], _obj_0["键3"]
+                if _u503c1 == nil then
+                        _u503c1 = 123
+                end
+                if _u952e3 == nil then
+                        _u952e3 = "abc"
+                end
+        end
+        local _u5143_u8868, call, add
+        do
+                local _obj_0 = getmetatable(_u5bf9_u8c61tb)
+                _u5143_u8868, call, add = _obj_0, getmetatable(_obj_0).__call, getmetatable(_obj_0).__add
+                if _u5143_u8868 == nil then
+                        _u5143_u8868 = {
+                                __index = {
+                                        ["字段abc"] = 123
+                                }
+                        }
+                end
+                if call == nil then
+                        call = (function()
+                                return { }
+                        end)
+                end
+        end
+        local _u5143_u8868x, y_u5b57_u6bb5, z_u53d8_u91cf, index
+        do
+                local _obj_0 = _u5bf9_u8c61tb
+                _u5143_u8868x, y_u5b57_u6bb5, z_u53d8_u91cf = getmetatable(_obj_0["字段x"]), _obj_0["y字段"], _obj_0["z字段"]
+                if _u5143_u8868x == nil then
+                        _u5143_u8868x = { }
+                end
+                index = getmetatable(_obj_0).__index
+                if index == nil then
+                        index = function()
+                                return nil
+                        end
+                end
+        end
+        do
+                local _tmp_0
+                do
+                        local _obj_0 = getmetatable(_u5bf9_u8c61tb)
+                        _tmp_0 = _obj_0["函数"]
+                end
+                if _tmp_0 == nil then
+                        do
+                                local _obj_0 = _u9879_u76ee
+                                if _obj_0 ~= nil then
+                                        _tmp_0 = _obj_0["默认值"]
+                                end
+                        end
+                end
+                a_u5bf9_u8c61["b字段"](function()
+                        return 123
+                end)["字段c"] = _tmp_0
+        end
+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
+        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
+        end
+end
+do
+        local _u5143_u7d20a, _u5143_u7d20b
+        do
+                local _obj_0 = _u5bf9_u8c61tb
+                local _tmp_0
+                _u5143_u7d20a, _u5143_u7d20b, _tmp_0 = _obj_0[1], _obj_0[2], _obj_0["字段c"][1]
+                if _u5143_u7d20a == nil then
+                        _u5143_u7d20a = 1
+                end
+                if _u5143_u7d20b == nil then
+                        _u5143_u7d20b = 2
+                end
+                if _tmp_0 == nil then
+                        _tmp_0 = 3
+                end
+                _u5bf9_u50cfd["字段e"] = _tmp_0
+        end
+        local _list_0 = _u5143_u7ec4_u5217_u8868
+        for _index_0 = 1, #_list_0 do
+                local _des_0 = _list_0[_index_0]
+                local _u5de6, _u53f3 = _des_0[1], _des_0[2]
+                if _u5de6 == nil then
+                        _u5de6 = "null"
+                end
+                if _u53f3 == nil then
+                        _u53f3 = false
+                end
+                _u6253_u5370(_u5de6, _u53f3)
+        end
+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
+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
+        end
+end
+do
+        local _u5bbd, _u9ad8
+        do
+                local _obj_0 = _u89c6_u533a["尺寸"]
+                _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
+        end
+end
+do
+        local _u53d8_u91cf1, _u53d8_u91cf2, _u53d8_u91cf3, _u53d8_u91cfd, _u53d8_u91cfe
+        local _u5143_u7d20b
+        do
+                local _obj_0, _obj_1, _obj_2, _obj_3, _obj_4 = _u51fd_u6570()
+                do
+                        local _obj_5 = _u6570_u7ec4a
+                        _obj_5[#_obj_5 + 1] = _obj_0
+                end
+                setmetatable(_u5bf9_u8c61c, _obj_4)
+                _u53d8_u91cf1, _u53d8_u91cf2, _u53d8_u91cf3, _u53d8_u91cfd, _u53d8_u91cfe = 1, 2, 3, _obj_1, _obj_3
+                _u5143_u7d20b = _obj_2[1]
+        end
+        local _u53d8_u91cfy1, _u53d8_u91cfy4
+        local _u5b57_u6bb5y2, _u5b57_u6bb5y3
+        do
+                local _obj_0, _obj_1 = _u51fd_u65702()
+                _u53d8_u91cfy1, _u53d8_u91cfy4 = _u51fd_u65701(), _obj_1
+                _u5b57_u6bb5y2, _u5b57_u6bb5y3 = _obj_0["字段y2"], _obj_0["字段y3"]
+        end
+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
+        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]
+        end
+end
+do
+        local _u503c, _u5143_u503c
+        do
+                local _obj_0 = _u5bf9_u8c61tb
+                _u503c = _obj_0[_u540d_u79f0]
+                _u5143_u503c = getmetatable(_obj_0)[_u540d_u79f0]
+        end
+end
+do
+        local tostring, add
+        do
+                local _obj_0 = getmetatable(_u5bf9_u8c61tb)
+                tostring, add = _obj_0.__tostring, _obj_0.__add
+                if tostring == nil then
+                        tostring = (function()
+                                return "名称"
+                        end)
+                end
+        end
+        do
+                local _exp_0 = _u5bf9_u8c61tb
+                local _type_0 = type(_exp_0)
+                local _tab_0 = "table" == _type_0 or "userdata" == _type_0
+                if _tab_0 then
+                        local name, _u5143_u5b57_u6bb5
+                        do
+                                local _obj_0 = getmetatable(_exp_0)
+                                name = _obj_0.__name
+                                _u5143_u5b57_u6bb5 = _obj_0["123"]
+                                if name == nil then
+                                        name = "项目"
+                                end
+                        end
+                        if _u5143_u5b57_u6bb5 ~= nil then
+                                _u6253_u5370(name, _u5143_u5b57_u6bb5)
+                        end
+                end
+        end
+end
+do
+        local _u5bf9_u8c61tb = { }
+        do
+                local _tmp_0 = _u51fd_u6570c()
+                local _u53d8_u91cfv2 = _u5bf9_u8c61tb[_tmp_0]
+        end
+        local _u53d8_u91cfv1
+        do
+                local _obj_0 = getmetatable(_u5bf9_u8c61tb)
+                local _tmp_1 = _u53d8_u91cfa + _u53d8_u91cfb
+                _u53d8_u91cfv1 = _obj_0[_tmp_1]
+        end
+end
+do
+        local add, _u5b57_u6bb5
+        do
+                local _obj_0 = _u5bf9_u8c61tb
+                add, _u5b57_u6bb5 = getmetatable(_obj_0.a).__add, getmetatable(_obj_0.b)[_u5b57_u6bb5_u540d]
+                if add == nil then
+                        add = _u52a0_u51fd_u6570
+                end
+                if _u5b57_u6bb5 == nil then
+                        _u5b57_u6bb5 = 123
+                end
+        end
+        local _u5143_u5b57_u6bb5, _u53d8_u91cfabc, _u6709_u9ed8_u8ba4_u503c
+        do
+                local _obj_0 = getmetatable(_u5bf9_u8c61tb)
+                _u5143_u5b57_u6bb5, _u53d8_u91cfabc, _u6709_u9ed8_u8ba4_u503c = _obj_0["字段abc"], _obj_0[ [[任意 字符串]]], _obj_0['字符串']
+                if _u5143_u5b57_u6bb5 == nil then
+                        _u5143_u5b57_u6bb5 = "默认值"
+                end
+                if _u53d8_u91cfabc == nil then
+                        _u53d8_u91cfabc = 123
+                end
+                if _u6709_u9ed8_u8ba4_u503c == nil then
+                        _u6709_u9ed8_u8ba4_u503c = { }
+                end
+        end
+        do
+                local _exp_0 = _u5bf9_u8c61tb
+                local _type_0 = type(_exp_0)
+                local _tab_0 = "table" == _type_0 or "userdata" == _type_0
+                if _tab_0 then
+                        do
+                                local _obj_0 = _exp_0["字段a"]
+                                local _type_1 = type(_obj_0)
+                                if "table" == _type_1 or "userdata" == _type_1 then
+                                        do
+                                                local _obj_1 = getmetatable(_obj_0)
+                                                local _type_2 = type(_obj_1)
+                                                if "table" == _type_2 or "userdata" == _type_2 then
+                                                        add = _obj_1.__add
+                                                end
+                                        end
+                                end
+                        end
+                        do
+                                local _obj_0 = _exp_0.b
+                                local _type_1 = type(_obj_0)
+                                if "table" == _type_1 or "userdata" == _type_1 then
+                                        do
+                                                local _obj_1 = getmetatable(_obj_0)
+                                                local _type_2 = type(_obj_1)
+                                                if "table" == _type_2 or "userdata" == _type_2 then
+                                                        _u5b57_u6bb5 = _obj_1[_u5b57_u6bb5_u540d]
+                                                end
+                                        end
+                                end
+                        end
+                        if add == nil then
+                                add = _u52a0_u51fd_u6570
+                        end
+                        if _u5b57_u6bb5 == nil then
+                                _u5b57_u6bb5 = 123
+                        end
+                        _u6253_u5370(add, _u5b57_u6bb5)
+                end
+        end
+        do
+                local _exp_0 = tb
+                local _type_0 = type(_exp_0)
+                local _tab_0 = "table" == _type_0 or "userdata" == _type_0
+                if _tab_0 then
+                        do
+                                local _obj_0 = _exp_0["字段c"]
+                                local _type_1 = type(_obj_0)
+                                if "table" == _type_1 or "userdata" == _type_1 then
+                                        do
+                                                local _obj_1 = getmetatable(_obj_0)
+                                                local _type_2 = type(_obj_1)
+                                                if "table" == _type_2 or "userdata" == _type_2 then
+                                                        _u5143_u5b57_u6bb5 = _obj_1["字段abc"]
+                                                end
+                                        end
+                                end
+                        end
+                        if _u5143_u5b57_u6bb5 == nil then
+                                _u5143_u5b57_u6bb5 = "默认值"
+                        end
+                        do
+                                local _obj_0 = getmetatable(_exp_0)
+                                do
+                                        local _obj_1 = _obj_0[ [[any string]]]
+                                        local _type_1 = type(_obj_1)
+                                        if "table" == _type_1 or "userdata" == _type_1 then
+                                                _u53d8_u91cfabc = _obj_1["字段d"]
+                                        end
+                                end
+                                do
+                                        local _obj_1 = _obj_0['字符串']
+                                        local _type_1 = type(_obj_1)
+                                        if "table" == _type_1 or "userdata" == _type_1 then
+                                                _u6709_u9ed8_u8ba4_u503c = _obj_1["字段e"]
+                                        end
+                                end
+                                if _u53d8_u91cfabc == nil then
+                                        _u53d8_u91cfabc = 123
+                                end
+                                if _u6709_u9ed8_u8ba4_u503c == nil then
+                                        _u6709_u9ed8_u8ba4_u503c = { }
+                                end
+                        end
+                        _u6253_u5370(_u5143_u5b57_u6bb5, _u53d8_u91cfabc, _u6709_u9ed8_u8ba4_u503c)
+                end
+        end
+end
+return nil