37 lines
739 B
Text
37 lines
739 B
Text
Variable x : Bool
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(**
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import("util.lua")
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local env = get_environment()
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local Int = Const("Int")
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local plus = Const{"Int", "add"}
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local x1, x2 = Consts("x1, x2")
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print(env:type_check(Int))
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print(env:type_check(plus))
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env:add_var("x1", Int)
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env:add_var("x2", Int)
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print(plus(x1, x2))
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print(env:type_check(plus(x1)))
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function sum(...)
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local args = {...}
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if #args == 0 then
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error("sum must have at least one argument")
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else
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local r = args[1]
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for i = 2, #args do
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r = plus(r, args[i])
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end
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return r
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end
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end
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local s = sum(x1, x1, x1, x2, x2)
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print(s)
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print(env:type_check(s))
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env:add_definition("sum1", s)
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**)
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Show Environment 1
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Eval sum1
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Variable y : Bool
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