4 files changed, 184 insertions, 27 deletions
diff --git a/spec/inputs/global.yue b/spec/inputs/global.yue
index 59cf764..ce1cc15 100644
--- a/spec/inputs/global.yue
+++ b/spec/inputs/global.yue
@@ -75,3 +75,10 @@ do
        h = 100
+do
+        global x = y
+        global ^
+        foobar = "all lowercase"
+        FooBar = "pascal case"
+        FOOBAR = "all uppercase"
diff --git a/spec/outputs/5.1/attrib.lua b/spec/outputs/5.1/attrib.lua
index dc1285c..a156e84 100644
--- a/spec/outputs/5.1/attrib.lua
+++ b/spec/outputs/5.1/attrib.lua
@@ -5,12 +5,36 @@ do
                        return print("closed")
                end
        })
-        local _close_0 = assert(getmetatable(a).__close)
+        local _close_0
-        local _close_1 = assert(getmetatable(b).__close);
+        if (function()
+                local _val_0 = type(a)
+                return 'table' == _val_0 or 'userdata' == _val_0
+        end)() then
+                _close_0 = assert(getmetatable(a) and getmetatable(a).__close, "variable 'a' got a non-closable value")
+        elseif a == nil then
+                _close_0 = nil
+        else
+                _close_0 = error("variable 'a' got a non-closable value")
+        end
+        local _close_1
+        if (function()
+                local _val_0 = type(b)
+                return 'table' == _val_0 or 'userdata' == _val_0
+        end)() then
+                _close_1 = assert(getmetatable(b) and getmetatable(b).__close, "variable 'b' got a non-closable value")
+        elseif b == nil then
+                _close_1 = nil
+        else
+                _close_1 = error("variable 'b' got a non-closable value")
+        end
        (function(_arg_0, ...)
                local _ok_0 = _arg_0
-                _close_1(b)
+                if _close_1 ~= nil then
-                _close_0(a)
+                        _close_1(b)
+                end
+                if _close_0 ~= nil then
+                        _close_0(a)
+                end
                if _ok_0 then
                        return ...
                else
@@ -53,10 +77,22 @@ do
                        __close = function(self) end
                })
        end
-        local _close_0 = assert(getmetatable(v).__close);
+        local _close_0
+        if (function()
+                local _val_0 = type(v)
+                return 'table' == _val_0 or 'userdata' == _val_0
+        end)() then
+                _close_0 = assert(getmetatable(v) and getmetatable(v).__close, "variable 'v' got a non-closable value")
+        elseif v == nil then
+                _close_0 = nil
+        else
+                _close_0 = error("variable 'v' got a non-closable value")
+        end
        (function(_arg_0, ...)
                local _ok_0 = _arg_0
-                _close_0(v)
+                if _close_0 ~= nil then
+                        _close_0(v)
+                end
                if _ok_0 then
                        return ...
                else
@@ -69,10 +105,22 @@ do
                        _with_0:write("Hello")
                        f = _with_0
                end
-                local _close_1 = assert(getmetatable(f).__close)
+                local _close_1
+                if (function()
+                        local _val_0 = type(f)
+                        return 'table' == _val_0 or 'userdata' == _val_0
+                end)() then
+                        _close_1 = assert(getmetatable(f) and getmetatable(f).__close, "variable 'f' got a non-closable value")
+                elseif f == nil then
+                        _close_1 = nil
+                else
+                        _close_1 = error("variable 'f' got a non-closable value")
+                end
                return (function(_arg_0, ...)
                        local _ok_0 = _arg_0
-                        _close_1(f)
+                        if _close_1 ~= nil then
+                                _close_1(f)
+                        end
                        if _ok_0 then
                                return ...
                        else
@@ -92,10 +140,22 @@ do
                        b = 1
                end
        end
-        local _close_0 = assert(getmetatable(b).__close);
+        local _close_0
+        if (function()
+                local _val_0 = type(b)
+                return 'table' == _val_0 or 'userdata' == _val_0
+        end)() then
+                _close_0 = assert(getmetatable(b) and getmetatable(b).__close, "variable 'b' got a non-closable value")
+        elseif b == nil then
+                _close_0 = nil
+        else
+                _close_0 = error("variable 'b' got a non-closable value")
+        end
        (function(_arg_0, ...)
                local _ok_0 = _arg_0
-                _close_0(b)
+                if _close_0 ~= nil then
+                        _close_0(b)
+                end
                if _ok_0 then
                        return ...
                else
@@ -121,10 +181,22 @@ do
                                value = value
                        }
                end
-                local _close_1 = assert(getmetatable(d).__close)
+                local _close_1
+                if (function()
+                        local _val_0 = type(d)
+                        return 'table' == _val_0 or 'userdata' == _val_0
+                end)() then
+                        _close_1 = assert(getmetatable(d) and getmetatable(d).__close, "variable 'd' got a non-closable value")
+                elseif d == nil then
+                        _close_1 = nil
+                else
+                        _close_1 = error("variable 'd' got a non-closable value")
+                end
                return (function(_arg_0, ...)
                        local _ok_0 = _arg_0
-                        _close_1(d)
+                        if _close_1 ~= nil then
+                                _close_1(d)
+                        end
                        if _ok_0 then
                                return ...
                        else
@@ -140,10 +212,22 @@ do
                _with_0:write("Hello")
                _ = _with_0
        end
-        local _close_0 = assert(getmetatable(_).__close);
+        local _close_0
+        if (function()
+                local _val_0 = type(_)
+                return 'table' == _val_0 or 'userdata' == _val_0
+        end)() then
+                _close_0 = assert(getmetatable(_) and getmetatable(_).__close, "variable '_' got a non-closable value")
+        elseif _ == nil then
+                _close_0 = nil
+        else
+                _close_0 = error("variable '_' got a non-closable value")
+        end
        (function(_arg_0, ...)
                local _ok_0 = _arg_0
-                _close_0(_)
+                if _close_0 ~= nil then
+                        _close_0(_)
+                end
                if _ok_0 then
                        return ...
                else
@@ -155,10 +239,22 @@ do
                                return print("second")
                        end
                })
-                local _close_1 = assert(getmetatable(_).__close)
+                local _close_1
+                if (function()
+                        local _val_0 = type(_)
+                        return 'table' == _val_0 or 'userdata' == _val_0
+                end)() then
+                        _close_1 = assert(getmetatable(_) and getmetatable(_).__close, "variable '_' got a non-closable value")
+                elseif _ == nil then
+                        _close_1 = nil
+                else
+                        _close_1 = error("variable '_' got a non-closable value")
+                end
                return (function(_arg_0, ...)
                        local _ok_0 = _arg_0
-                        _close_1(_)
+                        if _close_1 ~= nil then
+                                _close_1(_)
+                        end
                        if _ok_0 then
                                return ...
                        else
@@ -170,10 +266,22 @@ do
                                        return print("first")
                                end
                        })
-                        local _close_2 = assert(getmetatable(_).__close)
+                        local _close_2
+                        if (function()
+                                local _val_0 = type(_)
+                                return 'table' == _val_0 or 'userdata' == _val_0
+                        end)() then
+                                _close_2 = assert(getmetatable(_) and getmetatable(_).__close, "variable '_' got a non-closable value")
+                        elseif _ == nil then
+                                _close_2 = nil
+                        else
+                                _close_2 = error("variable '_' got a non-closable value")
+                        end
                        return (function(_arg_0, ...)
                                local _ok_0 = _arg_0
-                                _close_2(_)
+                                if _close_2 ~= nil then
+                                        _close_2(_)
+                                end
                                if _ok_0 then
                                        return ...
                                else
@@ -200,10 +308,22 @@ do
        local _ = def(function()
                return print(3)
        end)
-        local _close_0 = assert(getmetatable(_).__close)
+        local _close_0
+        if (function()
+                local _val_0 = type(_)
+                return 'table' == _val_0 or 'userdata' == _val_0
+        end)() then
+                _close_0 = assert(getmetatable(_) and getmetatable(_).__close, "variable '_' got a non-closable value")
+        elseif _ == nil then
+                _close_0 = nil
+        else
+                _close_0 = error("variable '_' got a non-closable value")
+        end
        return (function(_arg_0, ...)
                local _ok_0 = _arg_0
-                _close_0(_)
+                if _close_0 ~= nil then
+                        _close_0(_)
+                end
                if _ok_0 then
                        return ...
                else
@@ -213,10 +333,22 @@ do
                local _ = def(function()
                        return print(2)
                end)
-                local _close_1 = assert(getmetatable(_).__close)
+                local _close_1
+                if (function()
+                        local _val_0 = type(_)
+                        return 'table' == _val_0 or 'userdata' == _val_0
+                end)() then
+                        _close_1 = assert(getmetatable(_) and getmetatable(_).__close, "variable '_' got a non-closable value")
+                elseif _ == nil then
+                        _close_1 = nil
+                else
+                        _close_1 = error("variable '_' got a non-closable value")
+                end
                return (function(_arg_0, ...)
                        local _ok_0 = _arg_0
-                        _close_1(_)
+                        if _close_1 ~= nil then
+                                _close_1(_)
+                        end
                        if _ok_0 then
                                return ...
                        else
@@ -226,10 +358,22 @@ do
                        local _ = def(function()
                                return print(1)
                        end)
-                        local _close_2 = assert(getmetatable(_).__close)
+                        local _close_2
+                        if (function()
+                                local _val_0 = type(_)
+                                return 'table' == _val_0 or 'userdata' == _val_0
+                        end)() then
+                                _close_2 = assert(getmetatable(_) and getmetatable(_).__close, "variable '_' got a non-closable value")
+                        elseif _ == nil then
+                                _close_2 = nil
+                        else
+                                _close_2 = error("variable '_' got a non-closable value")
+                        end
                        return (function(_arg_0, ...)
                                local _ok_0 = _arg_0
-                                _close_2(_)
+                                if _close_2 ~= nil then
+                                        _close_2(_)
+                                end
                                if _ok_0 then
                                        return ...
                                else
diff --git a/spec/outputs/global.lua b/spec/outputs/global.lua
index 7e74387..54a21a9 100644
--- a/spec/outputs/global.lua
+++ b/spec/outputs/global.lua
@@ -87,3 +87,9 @@ do
        end
        local h = 100
 end
+do
+        x = y
+        local foobar = "all lowercase"
+        FooBar = "pascal case"
+        FOOBAR = "all uppercase"
+end
diff --git a/src/yuescript/yue_compiler.cpp b/src/yuescript/yue_compiler.cpp
index e3c9d31..a2a1864 100644
--- a/src/yuescript/yue_compiler.cpp
+++ b/src/yuescript/yue_compiler.cpp
@@ -75,7 +75,7 @@ static std::unordered_set<std::string> Metamethods = {
        "close"s // Lua 5.4
 };
-const std::string_view version = "0.27.2"sv;
+const std::string_view version = "0.27.3"sv;
 const std::string_view extension = "yue"sv;
 class CompileError : public std::logic_error {
@@ -4795,8 +4795,8 @@ private:
                                        auto varName = variableToString(ast_to<Variable_t>(var));
                                        auto closeVar = getUnusedName("_close_"sv);
                                        addToScope(closeVar);
-                                        getCloses.push_back(closeVar + "=assert "s + varName + ".<close>"s);
+                                        getCloses.push_back(closeVar + "=if type("s + varName + ") in ['table', 'userdata'] then assert "s + varName + ".<> and "s + varName +".<close>, \""s + "variable '"s + varName + "' got a non-closable value\" elseif "s + varName + " == nil then nil else error \""s + "variable '"s + varName + "' got a non-closable value\"");
-                                        doCloses.push_front(closeVar + ' ' + varName);
+                                        doCloses.push_front(closeVar + "? "s + varName);
                                }
                                popScope();
                                auto okVar = getUnusedName("_ok_"sv);

diff --git a/spec/inputs/global.yue b/spec/inputs/global.yue index 59cf764..ce1cc15 100644 --- a/spec/inputs/global.yue +++ b/spec/inputs/global.yue
@@ -75,3 +75,10 @@ do
75		75
76	h = 100	76	h = 100
77		77
		78	do
		79	global x = y
		80	global ^
		81	foobar = "all lowercase"
		82	FooBar = "pascal case"
		83	FOOBAR = "all uppercase"
		84


diff --git a/spec/outputs/5.1/attrib.lua b/spec/outputs/5.1/attrib.lua index dc1285c..a156e84 100644 --- a/spec/outputs/5.1/attrib.lua +++ b/spec/outputs/5.1/attrib.lua
@@ -5,12 +5,36 @@ do
5	return print("closed")	5	return print("closed")
6	end	6	end
7	})	7	})
8	local _close_0 = assert(getmetatable(a).__close)	8	local _close_0
9	local _close_1 = assert(getmetatable(b).__close);	9	if (function()
		10	local _val_0 = type(a)
		11	return 'table' == _val_0 or 'userdata' == _val_0
		12	end)() then
		13	_close_0 = assert(getmetatable(a) and getmetatable(a).__close, "variable 'a' got a non-closable value")
		14	elseif a == nil then
		15	_close_0 = nil
		16	else
		17	_close_0 = error("variable 'a' got a non-closable value")
		18	end
		19	local _close_1
		20	if (function()
		21	local _val_0 = type(b)
		22	return 'table' == _val_0 or 'userdata' == _val_0
		23	end)() then
		24	_close_1 = assert(getmetatable(b) and getmetatable(b).__close, "variable 'b' got a non-closable value")
		25	elseif b == nil then
		26	_close_1 = nil
		27	else
		28	_close_1 = error("variable 'b' got a non-closable value")
		29	end
10	(function(_arg_0, ...)	30	(function(_arg_0, ...)
11	local _ok_0 = _arg_0	31	local _ok_0 = _arg_0
12	_close_1(b)	32	if _close_1 ~= nil then
13	_close_0(a)	33	_close_1(b)
		34	end
		35	if _close_0 ~= nil then
		36	_close_0(a)
		37	end
14	if _ok_0 then	38	if _ok_0 then
15	return ...	39	return ...
16	else	40	else
@@ -53,10 +77,22 @@ do
53	__close = function(self) end	77	__close = function(self) end
54	})	78	})
55	end	79	end
56	local _close_0 = assert(getmetatable(v).__close);	80	local _close_0
		81	if (function()
		82	local _val_0 = type(v)
		83	return 'table' == _val_0 or 'userdata' == _val_0
		84	end)() then
		85	_close_0 = assert(getmetatable(v) and getmetatable(v).__close, "variable 'v' got a non-closable value")
		86	elseif v == nil then
		87	_close_0 = nil
		88	else
		89	_close_0 = error("variable 'v' got a non-closable value")
		90	end
57	(function(_arg_0, ...)	91	(function(_arg_0, ...)
58	local _ok_0 = _arg_0	92	local _ok_0 = _arg_0
59	_close_0(v)	93	if _close_0 ~= nil then
		94	_close_0(v)
		95	end
60	if _ok_0 then	96	if _ok_0 then
61	return ...	97	return ...
62	else	98	else
@@ -69,10 +105,22 @@ do
69	_with_0:write("Hello")	105	_with_0:write("Hello")
70	f = _with_0	106	f = _with_0
71	end	107	end
72	local _close_1 = assert(getmetatable(f).__close)	108	local _close_1
		109	if (function()
		110	local _val_0 = type(f)
		111	return 'table' == _val_0 or 'userdata' == _val_0
		112	end)() then
		113	_close_1 = assert(getmetatable(f) and getmetatable(f).__close, "variable 'f' got a non-closable value")
		114	elseif f == nil then
		115	_close_1 = nil
		116	else
		117	_close_1 = error("variable 'f' got a non-closable value")
		118	end
73	return (function(_arg_0, ...)	119	return (function(_arg_0, ...)
74	local _ok_0 = _arg_0	120	local _ok_0 = _arg_0
75	_close_1(f)	121	if _close_1 ~= nil then
		122	_close_1(f)
		123	end
76	if _ok_0 then	124	if _ok_0 then
77	return ...	125	return ...
78	else	126	else
@@ -92,10 +140,22 @@ do
92	b = 1	140	b = 1
93	end	141	end
94	end	142	end
95	local _close_0 = assert(getmetatable(b).__close);	143	local _close_0
		144	if (function()
		145	local _val_0 = type(b)
		146	return 'table' == _val_0 or 'userdata' == _val_0
		147	end)() then
		148	_close_0 = assert(getmetatable(b) and getmetatable(b).__close, "variable 'b' got a non-closable value")
		149	elseif b == nil then
		150	_close_0 = nil
		151	else
		152	_close_0 = error("variable 'b' got a non-closable value")
		153	end
96	(function(_arg_0, ...)	154	(function(_arg_0, ...)
97	local _ok_0 = _arg_0	155	local _ok_0 = _arg_0
98	_close_0(b)	156	if _close_0 ~= nil then
		157	_close_0(b)
		158	end
99	if _ok_0 then	159	if _ok_0 then
100	return ...	160	return ...
101	else	161	else
@@ -121,10 +181,22 @@ do
121	value = value	181	value = value
122	}	182	}
123	end	183	end
124	local _close_1 = assert(getmetatable(d).__close)	184	local _close_1
		185	if (function()
		186	local _val_0 = type(d)
		187	return 'table' == _val_0 or 'userdata' == _val_0
		188	end)() then
		189	_close_1 = assert(getmetatable(d) and getmetatable(d).__close, "variable 'd' got a non-closable value")
		190	elseif d == nil then
		191	_close_1 = nil
		192	else
		193	_close_1 = error("variable 'd' got a non-closable value")
		194	end
125	return (function(_arg_0, ...)	195	return (function(_arg_0, ...)
126	local _ok_0 = _arg_0	196	local _ok_0 = _arg_0
127	_close_1(d)	197	if _close_1 ~= nil then
		198	_close_1(d)
		199	end
128	if _ok_0 then	200	if _ok_0 then
129	return ...	201	return ...
130	else	202	else
@@ -140,10 +212,22 @@ do
140	_with_0:write("Hello")	212	_with_0:write("Hello")
141	_ = _with_0	213	_ = _with_0
142	end	214	end
143	local _close_0 = assert(getmetatable(_).__close);	215	local _close_0
		216	if (function()
		217	local _val_0 = type(_)
		218	return 'table' == _val_0 or 'userdata' == _val_0
		219	end)() then
		220	_close_0 = assert(getmetatable(_) and getmetatable(_).__close, "variable '_' got a non-closable value")
		221	elseif _ == nil then
		222	_close_0 = nil
		223	else
		224	_close_0 = error("variable '_' got a non-closable value")
		225	end
144	(function(_arg_0, ...)	226	(function(_arg_0, ...)
145	local _ok_0 = _arg_0	227	local _ok_0 = _arg_0
146	_close_0(_)	228	if _close_0 ~= nil then
		229	_close_0(_)
		230	end
147	if _ok_0 then	231	if _ok_0 then
148	return ...	232	return ...
149	else	233	else
@@ -155,10 +239,22 @@ do
155	return print("second")	239	return print("second")
156	end	240	end
157	})	241	})
158	local _close_1 = assert(getmetatable(_).__close)	242	local _close_1
		243	if (function()
		244	local _val_0 = type(_)
		245	return 'table' == _val_0 or 'userdata' == _val_0
		246	end)() then
		247	_close_1 = assert(getmetatable(_) and getmetatable(_).__close, "variable '_' got a non-closable value")
		248	elseif _ == nil then
		249	_close_1 = nil
		250	else
		251	_close_1 = error("variable '_' got a non-closable value")
		252	end
159	return (function(_arg_0, ...)	253	return (function(_arg_0, ...)
160	local _ok_0 = _arg_0	254	local _ok_0 = _arg_0
161	_close_1(_)	255	if _close_1 ~= nil then
		256	_close_1(_)
		257	end
162	if _ok_0 then	258	if _ok_0 then
163	return ...	259	return ...
164	else	260	else
@@ -170,10 +266,22 @@ do
170	return print("first")	266	return print("first")
171	end	267	end
172	})	268	})
173	local _close_2 = assert(getmetatable(_).__close)	269	local _close_2
		270	if (function()
		271	local _val_0 = type(_)
		272	return 'table' == _val_0 or 'userdata' == _val_0
		273	end)() then
		274	_close_2 = assert(getmetatable(_) and getmetatable(_).__close, "variable '_' got a non-closable value")
		275	elseif _ == nil then
		276	_close_2 = nil
		277	else
		278	_close_2 = error("variable '_' got a non-closable value")
		279	end
174	return (function(_arg_0, ...)	280	return (function(_arg_0, ...)
175	local _ok_0 = _arg_0	281	local _ok_0 = _arg_0
176	_close_2(_)	282	if _close_2 ~= nil then
		283	_close_2(_)
		284	end
177	if _ok_0 then	285	if _ok_0 then
178	return ...	286	return ...
179	else	287	else
@@ -200,10 +308,22 @@ do
200	local _ = def(function()	308	local _ = def(function()
201	return print(3)	309	return print(3)
202	end)	310	end)
203	local _close_0 = assert(getmetatable(_).__close)	311	local _close_0
		312	if (function()
		313	local _val_0 = type(_)
		314	return 'table' == _val_0 or 'userdata' == _val_0
		315	end)() then
		316	_close_0 = assert(getmetatable(_) and getmetatable(_).__close, "variable '_' got a non-closable value")
		317	elseif _ == nil then
		318	_close_0 = nil
		319	else
		320	_close_0 = error("variable '_' got a non-closable value")
		321	end
204	return (function(_arg_0, ...)	322	return (function(_arg_0, ...)
205	local _ok_0 = _arg_0	323	local _ok_0 = _arg_0
206	_close_0(_)	324	if _close_0 ~= nil then
		325	_close_0(_)
		326	end
207	if _ok_0 then	327	if _ok_0 then
208	return ...	328	return ...
209	else	329	else
@@ -213,10 +333,22 @@ do
213	local _ = def(function()	333	local _ = def(function()
214	return print(2)	334	return print(2)
215	end)	335	end)
216	local _close_1 = assert(getmetatable(_).__close)	336	local _close_1
		337	if (function()
		338	local _val_0 = type(_)
		339	return 'table' == _val_0 or 'userdata' == _val_0
		340	end)() then
		341	_close_1 = assert(getmetatable(_) and getmetatable(_).__close, "variable '_' got a non-closable value")
		342	elseif _ == nil then
		343	_close_1 = nil
		344	else
		345	_close_1 = error("variable '_' got a non-closable value")
		346	end
217	return (function(_arg_0, ...)	347	return (function(_arg_0, ...)
218	local _ok_0 = _arg_0	348	local _ok_0 = _arg_0
219	_close_1(_)	349	if _close_1 ~= nil then
		350	_close_1(_)
		351	end
220	if _ok_0 then	352	if _ok_0 then
221	return ...	353	return ...
222	else	354	else
@@ -226,10 +358,22 @@ do
226	local _ = def(function()	358	local _ = def(function()
227	return print(1)	359	return print(1)
228	end)	360	end)
229	local _close_2 = assert(getmetatable(_).__close)	361	local _close_2
		362	if (function()
		363	local _val_0 = type(_)
		364	return 'table' == _val_0 or 'userdata' == _val_0
		365	end)() then
		366	_close_2 = assert(getmetatable(_) and getmetatable(_).__close, "variable '_' got a non-closable value")
		367	elseif _ == nil then
		368	_close_2 = nil
		369	else
		370	_close_2 = error("variable '_' got a non-closable value")
		371	end
230	return (function(_arg_0, ...)	372	return (function(_arg_0, ...)
231	local _ok_0 = _arg_0	373	local _ok_0 = _arg_0
232	_close_2(_)	374	if _close_2 ~= nil then
		375	_close_2(_)
		376	end
233	if _ok_0 then	377	if _ok_0 then
234	return ...	378	return ...
235	else	379	else


diff --git a/spec/outputs/global.lua b/spec/outputs/global.lua index 7e74387..54a21a9 100644 --- a/spec/outputs/global.lua +++ b/spec/outputs/global.lua
@@ -87,3 +87,9 @@ do
87	end	87	end
88	local h = 100	88	local h = 100
89	end	89	end
		90	do
		91	x = y
		92	local foobar = "all lowercase"
		93	FooBar = "pascal case"
		94	FOOBAR = "all uppercase"
		95	end


diff --git a/src/yuescript/yue_compiler.cpp b/src/yuescript/yue_compiler.cpp index e3c9d31..a2a1864 100644 --- a/src/yuescript/yue_compiler.cpp +++ b/src/yuescript/yue_compiler.cpp
@@ -75,7 +75,7 @@ static std::unordered_set<std::string> Metamethods = {
75	"close"s // Lua 5.4	75	"close"s // Lua 5.4
76	};	76	};
77		77
78	const std::string_view version = "0.27.2"sv;	78	const std::string_view version = "0.27.3"sv;
79	const std::string_view extension = "yue"sv;	79	const std::string_view extension = "yue"sv;
80		80
81	class CompileError : public std::logic_error {	81	class CompileError : public std::logic_error {
@@ -4795,8 +4795,8 @@ private:
4795	auto varName = variableToString(ast_to<Variable_t>(var));	4795	auto varName = variableToString(ast_to<Variable_t>(var));
4796	auto closeVar = getUnusedName("_close_"sv);	4796	auto closeVar = getUnusedName("_close_"sv);
4797	addToScope(closeVar);	4797	addToScope(closeVar);
4798	getCloses.push_back(closeVar + "=assert "s + varName + ".<close>"s);	4798	getCloses.push_back(closeVar + "=if type("s + varName + ") in ['table', 'userdata'] then assert "s + varName + ".<> and "s + varName +".<close>, \""s + "variable '"s + varName + "' got a non-closable value\" elseif "s + varName + " == nil then nil else error \""s + "variable '"s + varName + "' got a non-closable value\"");
4799	doCloses.push_front(closeVar + ' ' + varName);	4799	doCloses.push_front(closeVar + "? "s + varName);
4800	}	4800	}
4801	popScope();	4801	popScope();
4802	auto okVar = getUnusedName("_ok_"sv);	4802	auto okVar = getUnusedName("_ok_"sv);