Second test batch and associated fixes

ast/AttachBlock.lua

@@ -17,7 +17,9 @@ AttachBlock = ast.abstract.Node {
 	end,
 
 	_format = function(self, state, priority, indentation, ...)
-		return self.expression:format(state, priority, indentation, ...).."\n\t"..self.block:format(state, priority, indentation + 1, ...)
+		local exp = self.expression:format(state, priority, indentation, ...)
+		if exp:sub(-2) == " _" then exp = exp:sub(1, -3) end
+		return exp.."\n\t"..self.block:format(state, priority, indentation + 1, ...)
 	end,
 
 	traverse = function(self, fn, ...)

ast/Definition.lua

@@ -50,12 +50,9 @@ local Definition = ast.abstract.Node {
 		symbol:prepare(state)
 		val:prepare(state)
 
-		if self.symbol.alias then
+		-- predefine exported variables
-			state.scope:define(symbol:with{ alias = false }, val) -- disable alias to avoid call in Identifier:_prepare
+		if symbol.exported then
-		elseif Overloadable:issub(val) then
+			self:eval(state)
-			state.scope:define_overloadable(symbol, val)
-		else
-			state.scope:define(symbol, val)
 		end
 	end
 }

ast/Environment.lua

@@ -28,7 +28,7 @@ local VariableMetadata = ast.abstract.Runtime {
 		end
 		if self.symbol.type_check then
 			local r = self.symbol.type_check:call(state, ArgumentTuple:new(value))
-			if not r:truthy() then error(("type check failure for %s; %s does not satisfy %s"):format(self.symbol.string, value, self.symbol.type_check)) end
+			if not r:truthy() then error(("type check failure for %s; %s does not satisfy %s"):format(self.symbol.string, value, self.symbol.type_check), 0) end
 		end
 		if self.symbol.alias then
 			local assign_args = ArgumentTuple:new()
@@ -185,14 +185,12 @@ local Environment = ast.abstract.Runtime {
 		return self:_get_variable(state, identifier):set(state, val)
 	end,
 
-	-- returns a list {[symbol]=val,...} of all exported variables in the current strict layer
+	-- returns a list {[symbol]=val,...} of all exported variables (evaluated) in the current strict layer
 	list_exported = function(self, state)
 		assert(self.export, "not an export scope layer")
 		local r = {}
 		for _, vm in self.variables:iter(state) do
-			if vm.symbol.exported then
+			r[vm.symbol] = vm:get(state)
-				r[vm.symbol] = vm:get(state)
-			end
 		end
 		return r
 	end,

ast/abstract/Node.lua

@@ -165,7 +165,7 @@ Node = class {
 		local r = {}
 		for _, tr in ipairs(l) do
 			table.insert(r, "(("..tr.source.."))")
-			table.insert(r, Call:new(Identifier:new("_#_"), ArgumentTuple:new(tr.context, Identifier:new("_"))))
+			table.insert(r, Call:new(Identifier:new("_#_"), ArgumentTuple:new(tr.context, Identifier:new("_"))):format())
 			table.insert(r, "\t"..Call:new(Identifier:new("_->_"), ArgumentTuple:new(tr, tr)):format())
 			table.insert(r, "")
 		end

state/State.lua

@@ -12,6 +12,15 @@ local parser = require("parser")
 local binser = require("lib.binser")
 local anselme
 
+-- same as assert, but do not add position information
+-- useful for errors raised from anselme (don't care about Lua error position)
+local function assert0(v, message, ...)
+	if not v then
+		error(message, 0)
+	end
+	return v, message, ...
+end
+
 local State
 State = class {
 	type = "anselme state",
@@ -142,7 +151,7 @@ State = class {
 	run = function(self, code, source)
 		assert(not self:active(), "a script is already active")
 		self._coroutine = coroutine.create(function()
-			local r = assert(self:eval_local(code, source))
+			local r = assert0(self:eval_local(code, source))
 			event_manager:final_flush(self)
 			return "return", r
 		end)
@@ -174,7 +183,7 @@ State = class {
 		assert(self:active(), "trying to interrupt but no script is currently active")
 		if code then
 			self._coroutine = coroutine.create(function()
-				local r = assert(self:eval_local(code, source))
+				local r = assert0(self:eval_local(code, source))
 				event_manager:final_flush(self)
 				self.scope:reset() -- scope stack is probably messed up after the switch
 				return "return", r

test/results/choice with decorators.ans

@@ -0,0 +1,33 @@
+--# run #--
+--- choice ---
+=> | {}"a "|
+ > | {}"b "|
+--- text ---
+| {}"-> a"|
+--- choice ---
+ > | {}"a "|
+=> | {}"b "|
+--- text ---
+| {}"-> b"|
+--- choice ---
+=> | {}"b "|
+--- text ---
+| {}"-> b"|
+--- choice ---
+ > | {}"a "|
+=> | {1:25}"b "|
+--- text ---
+| {1:25}"-> b"|
+--- choice ---
+=> | {1:3}"b "|
+--- text ---
+| {1:3}"-> b"|
+--- choice ---
+=> | {1:12}"a "|
+ > | {1:3}"b "|
+--- text ---
+| {1:12}"-> a"|
+--- return ---
+()
+--# saved #--
+{}

test/results/constant variable list.ans

@@ -0,0 +1,9 @@
+--# run #--
+--- text ---
+| {}"" {}"*[3]" {}""|
+--- text ---
+| {}"" {}"*[3, 52]" {}""|
+--- return ---
+()
+--# saved #--
+{}

test/results/constant variable.ans

@@ -1,6 +1,6 @@
 --# run #--
 --- error ---
-./state/State.lua:145: trying to change the value of constant a
+trying to change the value of constant a
 	↳ from test/tests/constant variable.ans:5:3 in assignment: a = 52
 	↳ from ? in block: ::a = 3…
 --# saved #--

test/results/constrained variable assignement.ans

@@ -0,0 +1,11 @@
+--# run #--
+--- text ---
+| {}"" {}"type(\"kg\", 5)" {}""|
+--- text ---
+| {}"" {}"type(\"kg\", 12)" {}""|
+--- error ---
+type check failure for weigh; 32 does not satisfy ($(x) type(x) == t)
+	↳ from test/tests/constrained variable assignement.ans:9:7 in assignment: weigh = 32
+	↳ from ? in block: :weigh::is("kg") = type(5, "kg")…
+--# saved #--
+{}

test/results/constrained variable definition.ans

@@ -0,0 +1,9 @@
+--# run #--
+--- text ---
+| {}"" {}"type(\"kg\", 5)" {}""|
+--- text ---
+| {}"" {}"12" {}""|
+--- return ---
+()
+--# saved #--
+{}

test/results/define override function.ans

@@ -1,4 +1,7 @@
---# parse error #--
+--# run #--
+--- error ---
 a is already defined in the current scope
 	↳ from test/tests/define override function.ans:4:4 in definition: :a = 2
 	↳ from ? in block: :a = ($() _)…
+--# saved #--
+{}

test/results/define override variable.ans

@@ -1,5 +1,8 @@
---# parse error #--
+--# run #--
+--- error ---
 can't add an overload variant to non-overloadable variable a defined in the same scope
 	↳ from test/tests/define override variable.ans:3:1 in definition: :a = ($() _)
 	↳ from test/tests/define override variable.ans:3:1 in attach block: :a = ($() _)…
 	↳ from ? in block: :a = 2…
+--# saved #--
+{}

test/results/define override.ans

@@ -1,4 +1,7 @@
---# parse error #--
+--# run #--
+--- error ---
 a is already defined in the current scope
 	↳ from test/tests/define override.ans:3:4 in definition: :a = 2
 	↳ from ? in block: :a = 5…
+--# saved #--
+{}

test/results/equality operator.ans

@@ -0,0 +1,27 @@
+--# run #--
+--- text ---
+| {}"false = " {}"false" {}""|
+--- text ---
+| {}"false = " {}"false" {}""|
+--- text ---
+| {}"true = " {}"true" {}""|
+--- text ---
+| {}"false = " {}"false" {}""|
+--- text ---
+| {}"false = " {}"false" {}""|
+--- text ---
+| {}"false = " {}"false" {}""|
+--- text ---
+| {}"false = " {}"false" {}""|
+--- text ---
+| {}"true = " {}"true" {}""|
+--- text ---
+| {}"false = " {}"false" {}""|
+--- text ---
+| {}"true = " {}"true" {}""|
+--- text ---
+| {}"true = " {}"true" {}""|
+--- return ---
+()
+--# saved #--
+{}

test/results/exported variable.ans

@@ -0,0 +1,5 @@
+--# run #--
+--- return ---
+"ok"
+--# saved #--
+{}

test/results/function args arity check fail.ans

@@ -1,6 +1,6 @@
 --# run #--
 --- error ---
-./state/State.lua:145: can't call closure ($(a, b) _): expected 2 arguments, received 1
+can't call closure ($(a, b) _): expected 2 arguments, received 1
 	↳ from test/tests/function args arity check fail.ans:4:2 in call: f("ok")
 	↳ from ? in block: :f = ($(a, b) _)…
 --# saved #--

test/results/function exported.ans

@@ -0,0 +1,21 @@
+--# run #--
+--- text ---
+| {}"local:"|
+--- text ---
+| {}"" {}"1" {}""|
+--- text ---
+| {}"" {}"1" {}""|
+--- text ---
+| {}"" {}"1" {}""|
+--- text ---
+| {}"exported:"|
+--- text ---
+| {}"" {}"1" {}""|
+--- text ---
+| {}"" {}"2" {}""|
+--- text ---
+| {}"" {}"3" {}""|
+--- return ---
+()
+--# saved #--
+{}

test/results/function return exit function nested.ans

@@ -0,0 +1,8 @@
+--# run #--
+--- text ---
+| {}"" {}"5" {}""|
+| {}"" {}"2" {}""|
+--- return ---
+()
+--# saved #--
+{}

test/results/function return nested.ans

@@ -0,0 +1,8 @@
+--# run #--
+--- text ---
+| {}"" {}"5" {}""|
+| {}"" {}"2" {}""|
+--- return ---
+()
+--# saved #--
+{}

test/results/function scope wrong.ans

@@ -1,6 +1,6 @@
 --# run #--
 --- error ---
-./state/State.lua:145: identifier "b" is undefined in branch 0a138a38-3faa-4478-10f6f-1a9de1e0a8e1
+identifier "b" is undefined in branch 0a138a38-3faa-4478-10f6f-1a9de1e0a8e1
 	↳ from test/tests/function scope wrong.ans:4:7 in identifier: b
 	↳ from test/tests/function scope wrong.ans:4:1 in text interpolation: | a: {b}|
 	↳ from test/tests/function scope wrong.ans:4:1 in translatable: | a: {b}|

test/results/function scoped mutable.ans

@@ -0,0 +1,65 @@
+--# run #--
+--- text ---
+| {}"new list each time:"|
+--- text ---
+| {}"start: " {}"*[]" {}""|
+--- text ---
+| {}"before recursion " {}"1" {}": " {}"*[1]" {}""|
+--- text ---
+| {}"start: " {}"*[]" {}""|
+--- text ---
+| {}"before recursion " {}"2" {}": " {}"*[2]" {}""|
+--- text ---
+| {}"start: " {}"*[]" {}""|
+--- text ---
+| {}"before recursion " {}"3" {}": " {}"*[3]" {}""|
+--- text ---
+| {}"start: " {}"*[]" {}""|
+--- text ---
+| {}"before recursion " {}"4" {}": " {}"*[4]" {}""|
+--- text ---
+| {}"start: " {}"*[]" {}""|
+--- text ---
+| {}"before recursion " {}"5" {}": " {}"*[5]" {}""|
+--- text ---
+| {}"after recursion " {}"4" {}": " {}"*[4]" {}""|
+--- text ---
+| {}"after recursion " {}"3" {}": " {}"*[3]" {}""|
+--- text ---
+| {}"after recursion " {}"2" {}": " {}"*[2]" {}""|
+--- text ---
+| {}"after recursion " {}"1" {}": " {}"*[1]" {}""|
+--- text ---
+| {}"pass list:"|
+--- text ---
+| {}"start: " {}"*[]" {}""|
+--- text ---
+| {}"before recursion " {}"1" {}": " {}"*[1]" {}""|
+--- text ---
+| {}"start: " {}"*[1]" {}""|
+--- text ---
+| {}"before recursion " {}"2" {}": " {}"*[1, 2]" {}""|
+--- text ---
+| {}"start: " {}"*[1, 2]" {}""|
+--- text ---
+| {}"before recursion " {}"3" {}": " {}"*[1, 2, 3]" {}""|
+--- text ---
+| {}"start: " {}"*[1, 2, 3]" {}""|
+--- text ---
+| {}"before recursion " {}"4" {}": " {}"*[1, 2, 3, 4]" {}""|
+--- text ---
+| {}"start: " {}"*[1, 2, 3, 4]" {}""|
+--- text ---
+| {}"before recursion " {}"5" {}": " {}"*[1, 2, 3, 4, 5]" {}""|
+--- text ---
+| {}"after recursion " {}"4" {}": " {}"*[1, 2, 3, 4, 5]" {}""|
+--- text ---
+| {}"after recursion " {}"3" {}": " {}"*[1, 2, 3, 4, 5]" {}""|
+--- text ---
+| {}"after recursion " {}"2" {}": " {}"*[1, 2, 3, 4, 5]" {}""|
+--- text ---
+| {}"after recursion " {}"1" {}": " {}"*[1, 2, 3, 4, 5]" {}""|
+--- return ---
+()
+--# saved #--
+{}

test/results/function scoped nested.ans

@@ -0,0 +1,61 @@
+--# run #--
+--- text ---
+| {}"depth 1:"|
+--- text ---
+| {}"" {}"1" {}""|
+--- text ---
+| {}"" {}">" {}" depth 2, unscoped:"|
+--- text ---
+| {}"" {}"1" {}""|
+--- text ---
+| {}"" {}"1" {}""|
+--- text ---
+| {}"" {}"1" {}""|
+--- text ---
+| {}"" {}">" {}" depth 2, scoped:"|
+--- text ---
+| {}"" {}"1" {}""|
+--- text ---
+| {}"" {}"1" {}""|
+--- text ---
+| {}"" {}"1" {}""|
+--- text ---
+| {}"" {}"1" {}""|
+--- text ---
+| {}"" {}">" {}" depth 2, unscoped:"|
+--- text ---
+| {}"" {}"1" {}""|
+--- text ---
+| {}"" {}"1" {}""|
+--- text ---
+| {}"" {}"1" {}""|
+--- text ---
+| {}"" {}">" {}" depth 2, scoped:"|
+--- text ---
+| {}"" {}"1" {}""|
+--- text ---
+| {}"" {}"1" {}""|
+--- text ---
+| {}"" {}"1" {}""|
+--- text ---
+| {}"" {}"1" {}""|
+--- text ---
+| {}"" {}">" {}" depth 2, unscoped:"|
+--- text ---
+| {}"" {}"1" {}""|
+--- text ---
+| {}"" {}"1" {}""|
+--- text ---
+| {}"" {}"1" {}""|
+--- text ---
+| {}"" {}">" {}" depth 2, scoped:"|
+--- text ---
+| {}"" {}"1" {}""|
+--- text ---
+| {}"" {}"1" {}""|
+--- text ---
+| {}"" {}"1" {}""|
+--- return ---
+()
+--# saved #--
+{}

test/results/function scoped recursive.ans

@@ -0,0 +1,33 @@
+--# run #--
+--- text ---
+| {}"start: " {}"1" {}""|
+--- text ---
+| {}"before recursion " {}"1" {}": " {}"2" {}""|
+--- text ---
+| {}"start: " {}"1" {}""|
+--- text ---
+| {}"before recursion " {}"2" {}": " {}"2" {}""|
+--- text ---
+| {}"start: " {}"1" {}""|
+--- text ---
+| {}"before recursion " {}"3" {}": " {}"2" {}""|
+--- text ---
+| {}"start: " {}"1" {}""|
+--- text ---
+| {}"before recursion " {}"4" {}": " {}"2" {}""|
+--- text ---
+| {}"start: " {}"1" {}""|
+--- text ---
+| {}"before recursion " {}"5" {}": " {}"2" {}""|
+--- text ---
+| {}"after recursion " {}"4" {}": " {}"2" {}""|
+--- text ---
+| {}"after recursion " {}"3" {}": " {}"2" {}""|
+--- text ---
+| {}"after recursion " {}"2" {}": " {}"2" {}""|
+--- text ---
+| {}"after recursion " {}"1" {}": " {}"2" {}""|
+--- return ---
+()
+--# saved #--
+{}

test/results/function scoped.ans

@@ -0,0 +1,21 @@
+--# run #--
+--- text ---
+| {}"paren:"|
+--- text ---
+| {}"" {}"1" {}""|
+--- text ---
+| {}"" {}"1" {}""|
+--- text ---
+| {}"" {}"1" {}""|
+--- text ---
+| {}"no paren:"|
+--- text ---
+| {}"" {}"1" {}""|
+--- text ---
+| {}"" {}"1" {}""|
+--- text ---
+| {}"" {}"1" {}""|
+--- return ---
+()
+--# saved #--
+{}

test/results/function separate variable from variants.ans

@@ -0,0 +1,12 @@
+--# run #--
+--- error ---
+can't call overload overload<($(c::($(x) <lua function>), s::($(x) <lua function>)) = v; <lua function>), ($(c::($(x) <lua function>), s::($(x) <lua function>)) = v; <lua function>), ($(c::($(x) <lua function>), s::($(x) <lua function>)) <lua function>)>: no function match (overload<($(b) _), ($(x) _), ($() _)>, "a"), possible functions were:
+	• (c::($(x) <lua function>), s::($(x) <lua function>)) = v: expected 3 arguments, received 2
+	• (c::($(x) <lua function>), s::($(x) <lua function>)) = v: expected 3 arguments, received 2
+	• (c::($(x) <lua function>), s::($(x) <lua function>)): type check failure for parameter c in function (c::($(x) <lua function>), s::($(x) <lua function>))
+	↳ from test/tests/function separate variable from variants.ans:10:4 in call: f . "a"
+	↳ from test/tests/function separate variable from variants.ans:10:1 in text interpolation: | {(f . "a")} = 2|
+	↳ from test/tests/function separate variable from variants.ans:10:1 in translatable: | {(f . "a")} = 2|
+	↳ from ? in block: :f = ($() _)…
+--# saved #--
+{}

test/results/function type dispatch ambigous.ans

@@ -1,6 +1,6 @@
 --# run #--
 --- error ---
-./state/State.lua:145: can't call overload overload<($(a::($(x) <lua function>)) _), ($(x::($(x) <lua function>)) _)>: more than one function match (5), matching functions were at least (specificity 1.3):
+can't call overload overload<($(a::($(x) <lua function>)) _), ($(x::($(x) <lua function>)) _)>: more than one function match (5), matching functions were at least (specificity 1.3):
 	• (x::($(x) <lua function>))
 	• (a::($(x) <lua function>))
 	↳ from test/tests/function type dispatch ambigous.ans:7:3 in call: fn(5)

test/results/list assignement.ans

@@ -10,7 +10,7 @@
 --- text ---
 | {}"" {}"*[3, 12, 99]" {}""|
 --- error ---
-./state/State.lua:145: list index out of bounds
+list index out of bounds
 	↳ from test/tests/list assignement.ans:21:6 in call: x(5) = 0
 	↳ from ? in block: :x = *[1, 2]…
 --# saved #--

test/results/list index.ans

@@ -8,7 +8,7 @@
 --- text ---
 | {}"" {}"3" {}" == " {}"3" {}""|
 --- error ---
-./state/State.lua:145: tuple index out of bounds
+tuple index out of bounds
 	↳ from test/tests/list index.ans:11:4 in call: x(-4)
 	↳ from test/tests/list index.ans:11:1 in text interpolation: | {x(-4)}|
 	↳ from test/tests/list index.ans:11:1 in translatable: | {x(-4)}|

test/results/return children.ans

@@ -0,0 +1,9 @@
+--# run #--
+--- text ---
+| {}"" {}"50" {}" = 50"|
+--- text ---
+| {}"" {}"3" {}" = 3"|
+--- return ---
+()
+--# saved #--
+{}

test/results/tag operator.ans

@@ -0,0 +1,9 @@
+--# run #--
+--- text ---
+| {}"a " {1:5}"" {1:5}"b" {1:5}"" {}" c"|
+--- text ---
+| {2:2}"a " {1:5, 2:2}"" {1:5, 2:2}"b" {1:5, 2:2}"" {2:2}" c"|
+--- return ---
+()
+--# saved #--
+{}

test/results/text buffer with tags.ans

@@ -0,0 +1,7 @@
+--# run #--
+--- text ---
+| {1:1}"lol"|
+--- return ---
+@| {}"a " {1:2}"d" {}" " {1:3}"t" {}" b"|
+--# saved #--
+{}

test/results/text buffer.ans

@@ -0,0 +1,7 @@
+--# run #--
+--- text ---
+| {}"lol"|
+--- return ---
+@| {}"a " {}"d" {}" b"|
+--# saved #--
+{}

test/results/translate context.ans

@@ -0,0 +1,11 @@
+--# run #--
+--- text ---
+| {}"Hello"|
+--- text ---
+| {}"Bonjour"|
+--- text ---
+| {}"Hello"|
+--- return ---
+()
+--# saved #--
+{}

test/results/translate string.ans

@@ -0,0 +1,9 @@
+--# run #--
+--- text ---
+| {}"" {}"Hello" {}""|
+--- text ---
+| {}"" {}"Bonjour" {}""|
+--- return ---
+()
+--# saved #--
+{}

test/results/translate text.ans

@@ -0,0 +1,9 @@
+--# run #--
+--- text ---
+| {}"Hello"|
+--- text ---
+| {}"Bonjour"|
+--- return ---
+()
+--# saved #--
+{}

test/tests/choice with decorators.ans

@@ -0,0 +1,35 @@
+1 ~ | a |>
+	| -> a
+| b |>
+	| -> b
+:@choice = 1
+
+1 ~ | a |>
+	| -> a
+| b |>
+	| -> b
+choice = 2
+
+() ~ | a |>
+	| -> a
+| b |>
+	| -> b
+choice = 1
+
+| a |>
+	| -> a
+25 # | b |>
+	| -> b
+choice = 2
+
+12 # () ~ | a |>
+	| -> a
+3 # | b |>
+	| -> b
+choice = 1
+
+12 # 1 ~ | a |>
+	| -> a
+3 # | b |>
+	| -> b
+choice = 1

test/tests/constant variable list.ans

@@ -0,0 +1,7 @@
+::a = *[3]
+
+|{a}
+
+a!insert(52)
+
+|{a}

test/tests/constrained variable assignement.ans

@@ -0,0 +1,11 @@
+:weigh::is("kg") = 5!type("kg")
+
+|{weigh}
+
+weigh = 12!type("kg")
+
+|{weigh}
+
+weigh = 32
+
+|{weigh}

test/tests/constrained variable definition.ans

@@ -0,0 +1,7 @@
+:weigh::($(x)x!type=="kg") = type(5, "kg")
+
+|{weigh}
+
+:not weigh::($(x)x!type=="kg") = 12
+
+|{not weigh}

test/tests/equality operator.ans

@@ -0,0 +1,29 @@
+::a = [1:2]
+
+|false = {a == [5:2]}
+
+|false = {a == [1:3]}
+
+|true = {a == [1:2]}
+
+::b = [1,2,3]
+
+|false = {b == a}
+
+|false = {b == []}
+
+|false = {b == [3,1,2]}
+
+|false = {b == [1,2,3,4]}
+
+|true = {b == [1,2,3]}
+
+:c = *[1,2,3]
+
+|false = {c == b}
+
+|true = {c!to tuple == b}
+
+::d = [1,2,3]
+
+|true = {d == b}

test/tests/exported variable.ans

@@ -0,0 +1,4 @@
+:f = $
+	:@x = "ok"
+
+f.x

test/tests/function exported.ans

@@ -0,0 +1,29 @@
+:$ f
+	:a = 1
+
+	|{a}
+
+	a = a + 1
+
+:$ g
+	:@a = 1
+
+	|{a}
+
+	a = a + 1
+
+|local:
+
+f!
+
+f!
+
+f!
+
+|exported:
+
+g!
+
+g!
+
+g!

test/tests/function return exit function nested.ans

@@ -0,0 +1,9 @@
+:$ hey
+	:@$ foo
+		@2
+		@3
+	@5
+	|u
+
+|{hey!}
+|{hey.foo!}

test/tests/function return nested.ans

@@ -0,0 +1,7 @@
+:$ hey
+	:@$ foo
+		@2
+	@5
+
+|{hey!}
+|{hey.foo!}

test/tests/function scoped mutable.ans

@@ -0,0 +1,40 @@
+:n = 0
+
+:$ f(c=1)
+	:a = *[]
+
+	|start: {a}
+
+	a!insert(c)
+
+	n += 1
+
+	|before recursion {c}: {a}
+
+	n < 5 ~
+		f(c+1)
+
+		|after recursion {c}: {a}
+
+|new list each time:
+
+f!
+
+:$ g(c=1, a=*[])
+	|start: {a}
+
+	a!insert(c)
+
+	n += 1
+
+	|before recursion {c}: {a}
+
+	n < 5 ~
+		g(c+1, a)
+
+		|after recursion {c}: {a}
+
+|pass list:
+
+n = 0
+g!

test/tests/function scoped nested.ans

@@ -0,0 +1,44 @@
+:$ f()
+	:a = 1
+
+	|{a}
+
+	a = a + 1
+
+	:$ g
+		:a = 1
+
+		|{a}
+
+		a = a + 1
+
+	:$ h()
+		:a = 1
+
+		|{a}
+
+		a = a + 1
+
+	|\> depth 2, unscoped:
+
+	g!
+
+	g!
+
+	g!
+
+	|\> depth 2, scoped:
+
+	h!
+
+	h!
+
+	h!
+
+|depth 1:
+
+f!
+
+f!
+
+f!

test/tests/function scoped recursive.ans

@@ -0,0 +1,19 @@
+:n = 0
+
+:$ f(c=1)
+	:a = 1
+
+	|start: {a}
+
+	a = a + 1
+
+	n += 1
+
+	|before recursion {c}: {a}
+
+	n < 5 ~
+		f(c+1)
+
+		|after recursion {c}: {a}
+
+f!

test/tests/function scoped.ans

@@ -0,0 +1,29 @@
+:$ f()
+	:a = 1
+
+	|{a}
+
+	a = a + 1
+
+:$ g
+	:a = 1
+
+	|{a}
+
+	a = a + 1
+
+|paren:
+
+f!
+
+f!
+
+f!
+
+|no paren:
+
+g!
+
+g!
+
+g!

test/tests/function separate variable from variants.ans

@@ -0,0 +1,10 @@
+:$ f
+	:@a = 2
+
+:$ f(x)
+	:a = 5
+
+:$ f(b)
+	:a = 10
+
+|{f.a} = 2

test/tests/return children.ans

@@ -0,0 +1,13 @@
+:$ fn
+    :i=0
+    @
+        i=50
+        i
+
+| {fn!} = 50
+
+:$ g
+    @
+        @3
+
+| {g!} = 3

test/tests/tag operator.ans

@@ -0,0 +1,7 @@
+:$ f
+	@"b"
+
+|a {5 # |{f!}} c
+
+2:2 #
+	|a {5 # |{f!}} c

test/tests/text buffer with tags.ans

@@ -0,0 +1,8 @@
+:$ f
+	1 # | lol
+
+	@2 # |d
+
+:a = |a {f!} {3#|t} b
+
+@a

test/tests/text buffer.ans

@@ -0,0 +1,8 @@
+:$ f
+	|lol
+
+	@|d
+
+:a = |a {f!} b
+
+@a

test/tests/translate context.ans

@@ -0,0 +1,8 @@
+| Hello
+
+"source": "test/tests/translate context.ans:6:1" #
+	| Hello| -> | Bonjour
+
+| Hello
+
+| Hello

test/tests/translate string.ans

@@ -0,0 +1,5 @@
+|{%"Hello"}
+
+%"Hello" -> "Bonjour"
+
+|{%"Hello"}

test/tests/translate text.ans

@@ -0,0 +1,5 @@
+| Hello
+
+| Hello| -> | Bonjour
+
+| Hello