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function throw_error_with_arg(arg)
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error(string.format("Whoops! argument = %s", arg))
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-- won't ever appear, due to previous error() call
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return "hello!"
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end
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local status, errmsg = pcall(throw_error_with_arg, "foobar 123")
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if (status ~= 0) then
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print("errmsg = ", errmsg)
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end
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