问题描述
(defclass systemEntity
(is-a USER)
(role abstract)
(single-slot SUSPECT
(type SYMBOL)
(allowed-values yes no)
(default no)
(create-accessor read-write))
(single-slot out
(type INTEGER)
(range 0 31)
(create-accessor read-write)))
(defclass command
(is-a systemEntity)
(role concrete))
(defclass component
(is-a systemEntity)
(role abstract))
(defclass sensor
(is-a component)
(role concrete)
(single-slot theoretical
(type INTEGER)
(range 0 31)
(create-accessor read-write))
(single-slot out
(type INTEGER)
(range 0 31)
(create-accessor read-write))
(single-slot reading
(type INTEGER)
(range 0 31)
(create-accessor read-write))
(single-slot input
(type INSTANCE)
(allowed-classes internal-component)
(create-accessor read-write)))
(defclass internal-component
(is-a component)
(role concrete)
(single-slot short-out
(type INTEGER)
(range 0 0)
(default 0)
(create-accessor read-write))
(multislot output
(type INSTANCE)
(allowed-classes component)
(create-accessor read-write))
(single-slot msb-out
(type INTEGER)
(range 0 15)
(create-accessor read-write))
(single-slot input2
(type INSTANCE)
(allowed-classes systemEntity)
(create-accessor read-write))
(single-slot input1
(type INSTANCE)
(allowed-classes systemEntity)
(create-accessor read-write)))
(defclass adder
(is-a internal-component)
(role concrete))
(defclass multiplier
(is-a internal-component)
(role concrete))
(defclass circuit
(is-a systemEntity)
(role concrete)
(multislot outputs
(type INSTANCE)
(allowed-classes sensor)
(create-accessor read-write))
(multislot has-components
(type INSTANCE)
(allowed-classes component)
(create-accessor read-write))
(multislot inputs
(type INSTANCE)
(allowed-classes command)
(create-accessor read-write)))
(defclass data
(is-a USER)
(role abstract)
(single-slot clock
(type INTEGER)
(range 1 ?VARIABLE)
(create-accessor read-write))
(single-slot object
(type INSTANCE)
(allowed-classes systemEntity)
(create-accessor read-write))
(single-slot value
(type INTEGER)
(create-accessor read-write)))
(defclass command_data
(is-a data)
(role concrete)
(single-slot object
(type INSTANCE)
(allowed-classes command)
(create-accessor read-write)))
(defclass reading_data
(is-a data)
(role concrete)
(single-slot object
(type INSTANCE)
(allowed-classes sensor)
(create-accessor read-write)))
(definstances facts
([a1] of adder
(input1 [input_1])
(input2 [input_1])
(output
[m1]
[p1])
(short-out 0)
(SUSPECT no))
([a2] of adder
(input1 [p1])
(input2 [p2])
(output [out1])
(short-out 0)
(SUSPECT no))
([circuit_1] of circuit
(has-components
[m1]
[m2]
[m3]
[out1]
[a1]
[a2]
[p1]
[p2])
(inputs
[input_1]
[input_2]
[input_3]
[input_4])
(outputs [out1])
(SUSPECT no))
([command_10_inp1] of command_data
(clock 10)
(object [input_1])
(value 6))
([command_10_inp2] of command_data
(clock 10)
(object [input_2])
(value 4))
([command_10_inp3] of command_data
(clock 10)
(object [input_3])
(value 25))
([command_10_inp4] of command_data
(clock 10)
(object [input_4])
(value 12))
([command_1_inp1] of command_data
(clock 1)
(object [input_1])
(value 21))
([command_1_inp2] of command_data
(clock 1)
(object [input_2])
(value 28))
([command_1_inp3] of command_data
(clock 1)
(object [input_3])
(value 10))
([command_1_inp4] of command_data
(clock 1)
(object [input_4])
(value 25))
([command_2_inp1] of command_data
(clock 2)
(object [input_1])
(value 7))
([command_2_inp2] of command_data
(clock 2)
(object [input_2])
(value 25))
([command_2_inp3] of command_data
(clock 2)
(object [input_3])
(value 13))
([command_2_inp4] of command_data
(clock 2)
(object [input_4])
(value 15))
([command_3_inp1] of command_data
(clock 3)
(object [input_1])
(value 11))
([command_3_inp2] of command_data
(clock 3)
(object [input_2])
(value 17))
([command_3_inp3] of command_data
(clock 3)
(object [input_3])
(value 24))
([command_3_inp4] of command_data
(clock 3)
(object [input_4])
(value 31))
([command_4_inp1] of command_data
(clock 4)
(object [input_1])
(value 18))
([command_4_inp2] of command_data
(clock 4)
(object [input_2])
(value 11))
([command_4_inp3] of command_data
(clock 4)
(object [input_3])
(value 28))
([command_4_inp4] of command_data
(clock 4)
(object [input_4])
(value 21))
([command_5_inp1] of command_data
(clock 5)
(object [input_1])
(value 25))
([command_5_inp2] of command_data
(clock 5)
(object [input_2])
(value 24))
([command_5_inp3] of command_data
(clock 5)
(object [input_3])
(value 30))
([command_5_inp4] of command_data
(clock 5)
(object [input_4])
(value 10))
([command_6_inp1] of command_data
(clock 6)
(object [input_1])
(value 12))
([command_6_inp2] of command_data
(clock 6)
(object [input_2])
(value 19))
([command_6_inp3] of command_data
(clock 6)
(object [input_3])
(value 11))
([command_6_inp4] of command_data
(clock 6)
(object [input_4])
(value 19))
([command_7_inp1] of command_data
(clock 7)
(object [input_1])
(value 1))
([command_7_inp2] of command_data
(clock 7)
(object [input_2])
(value 31))
([command_7_inp3] of command_data
(clock 7)
(object [input_3])
(value 7))
([command_7_inp4] of command_data
(clock 7)
(object [input_4])
(value 22))
([command_8_inp1] of command_data
(clock 8)
(object [input_1])
(value 0))
([command_8_inp2] of command_data
(clock 8)
(object [input_2])
(value 31))
([command_8_inp3] of command_data
(clock 8)
(object [input_3])
(value 3))
([command_8_inp4] of command_data
(clock 8)
(object [input_4])
(value 23))
([command_9_inp1] of command_data
(clock 9)
(object [input_1])
(value 31))
([command_9_inp2] of command_data
(clock 9)
(object [input_2])
(value 1))
([command_9_inp3] of command_data
(clock 9)
(object [input_3])
(value 6))
([command_9_inp4] of command_data
(clock 9)
(object [input_4])
(value 8))
([input_1] of command
(SUSPECT no))
([input_2] of command
(SUSPECT no))
([input_3] of command
(SUSPECT no))
([input_4] of command
(SUSPECT no))
([m1] of sensor
(input [a1])
(SUSPECT no))
([m2] of sensor
(input [p1])
(SUSPECT no))
([m3] of sensor
(input [p2])
(SUSPECT no))
([out1] of sensor
(input [a2])
(SUSPECT no))
([p1] of multiplier
(input1 [input_2])
(input2 [a1])
(output
[m2]
[a2])
(short-out 0)
(SUSPECT no))
([p2] of multiplier
(input1 [input_3])
(input2 [input_4])
(output
[m3]
[a2])
(short-out 0)
(SUSPECT no))
([reading_10_m1] of reading_data
(clock 10)
(object [m1])
(value 12))
([reading_10_m2] of reading_data
(clock 10)
(object [m2])
(value 31))
([reading_10_m3] of reading_data
(clock 10)
(object [m3])
(value 12))
([reading_10_out] of reading_data
(clock 10)
(object [out1])
(value 28))
([reading_1_m1] of reading_data
(clock 1)
(object [m1])
(value 10))
([reading_1_m2] of reading_data
(clock 1)
(object [m2])
(value 24))
([reading_1_m3] of reading_data
(clock 1)
(object [m3])
(value 26))
([reading_1_out] of reading_data
(clock 1)
(object [out1])
(value 18))
([reading_2_m1] of reading_data
(clock 2)
(object [m1])
(value 0))
([reading_2_m2] of reading_data
(clock 2)
(object [m2])
(value 0))
([reading_2_m3] of reading_data
(clock 2)
(object [m3])
(value 3))
([reading_2_out] of reading_data
(clock 2)
(object [out1])
(value 3))
([reading_3_m1] of reading_data
(clock 3)
(object [m1])
(value 22))
([reading_3_m2] of reading_data
(clock 3)
(object [m2])
(value 6))
([reading_3_m3] of reading_data
(clock 3)
(object [m3])
(value 8))
([reading_3_out] of reading_data
(clock 3)
(object [out1])
(value 14))
([reading_4_m1] of reading_data
(clock 4)
(object [m1])
(value 4))
([reading_4_m2] of reading_data
(clock 4)
(object [m2])
(value 12))
([reading_4_m3] of reading_data
(clock 4)
(object [m3])
(value 12))
([reading_4_out] of reading_data
(clock 4)
(object [out1])
(value 0))
([reading_5_m1] of reading_data
(clock 5)
(object [m1])
(value 18))
([reading_5_m2] of reading_data
(clock 5)
(object [m2])
(value 16))
([reading_5_m3] of reading_data
(clock 5)
(object [m3])
(value 12))
([reading_5_out] of reading_data
(clock 5)
(object [out1])
(value 12))
([reading_6_m1] of reading_data
(clock 6)
(object [m1])
(value 8))
([reading_6_m2] of reading_data
(clock 6)
(object [m2])
(value 24))
([reading_6_m3] of reading_data
(clock 6)
(object [m3])
(value 17))
([reading_6_out] of reading_data
(clock 6)
(object [out1])
(value 9))
([reading_7_m1] of reading_data
(clock 7)
(object [m1])
(value 2))
([reading_7_m2] of reading_data
(clock 7)
(object [m2])
(value 0))
([reading_7_m3] of reading_data
(clock 7)
(object [m3])
(value 26))
([reading_7_out] of reading_data
(clock 7)
(object [out1])
(value 26))
([reading_8_m1] of reading_data
(clock 8)
(object [m1])
(value 0))
([reading_8_m2] of reading_data
(clock 8)
(object [m2])
(value 0))
([reading_8_m3] of reading_data
(clock 8)
(object [m3])
(value 0))
([reading_8_out] of reading_data
(clock 8)
(object [out1])
(value 0))
([reading_9_m1] of reading_data
(clock 9)
(object [m1])
(value 30))
([reading_9_m2] of reading_data
(clock 9)
(object [m2])
(value 30))
([reading_9_m3] of reading_data
(clock 9)
(object [m3])
(value 0))
([reading_9_out] of reading_data
(clock 9)
(object [out1])
(value 30))
)
这些是我写的一个函数和一个规则。
我想从 command_data 对象的槽值中获取值，并在对象模式错误中获取未定义的类“command_data”。
我还从 CLIPS 的控制台附加了一个打印屏幕。
有什么帮助吗？
(deffunction calculate-adder (?r ?z)
(bind ?g (+ ?z ?r))
(bind ?f (* 2 2 2 2 2))
(mod ?g ?f)
)
(defrule initial-rule
?x <- (initial-fact)
(bind ?temp =1)
(object (is-a command_data)
(clock ?temp)
(object [input_1])
(value ?l))
(object (is-a command_data)
(clock ?temp)
(object [input_2])
(value ?z))
=>
(retract ?x)
(bind ?w (calculate-adder (?l ?z)))
)
解决方法
allowed-classes 属性非常积极地执行其限制。例如，如果实例存在，您可以在对象槽中放置一个实例名称，以便确定其类：
CLIPS (6.31 6/12/19)
CLIPS> (clear)
CLIPS>
(defclass command
(is-a USER))
CLIPS>
(defclass command_data
(is-a USER)
(slot object
(allowed-classes command)))
CLIPS> (make-instance [c1] of command)
[c1]
CLIPS>
(defrule no-error
(object
(is-a command_data)
(object [c1]))
=>)
CLIPS>
但是，如果您为尚未创建的实例使用实例名称，因此无法确定其类，则会出现错误：
CLIPS>
(defrule triggers-static-error
(object
(is-a command_data)
(object [c2]))
=>)
[CSTRNCHK1] A literal restriction value found in CE #1
does not match the allowed classes for slot object.
ERROR:
(defrule MAIN::triggers-static-error
(object (is-a command_data)
(object [c2]))
=>)
CLIPS>
解决此问题的最简单方法是禁用静态约束检查：
CLIPS> (set-static-constraint-checking FALSE)
TRUE
CLIPS>
(defrule no-longer-triggers-static-error
(object
(is-a command_data)
(object [c2]))
=>)
CLIPS>
您还可以从您的类中删除 allowed-classes 属性或修改您的规则，以便在插槽模式中不引用实例名称常量：
CLIPS> (set-static-constraint-checking TRUE)
FALSE
CLIPS>
(defrule no-longer-triggers-static-error
(object
(is-a command_data)
(object ?o))
(test (eq ?o [c2]))
=>)
CLIPS>