--- Helper module for symbolically representing a variable.
-- @classmod lqc.fsm.var
-- @alias var
local Var = {}
local Var_mt = {
    __index = Var,
}

--- Creates a symbolic representation of a variable.
-- @param value Value of the variable
-- @return a new variable object
function Var.new(value)
    if value == nil then
        error 'Need to provide a value to Var!'
    end
    local var = {
        value = value,
    }
    return setmetatable(var, Var_mt)
end

--- Returns a string representation of the variable
-- @return string representation of the variable
function Var:to_string()
    return '{ var, ' .. self.value .. ' }'
end

return Var