[英]wrong sig object get referenced to while executing state in Alloy
I am new to Alloy. 我是Alloy的新手。 I am trying to formalize a system using Alloy.
我正在尝试使用Alloy正式化系统。 Here I want to execute certain operations based on the events.
在这里,我想根据事件执行某些操作。 For this, I have a list of events that I want to track using enum Event.
为此,我有一个我想要使用枚举事件跟踪的事件列表。 And I am going through all the State using ordering function of Alloy.
而且我正在使用Alloy的订购功能来完成整个州。 In each state, I am taking the mixture object and running the operation.
在每个州,我正在采取混合物对象并运行操作。
Problem that I am facing currently is - In my system, I have two sig object - ClassA and ClassB. 我目前面临的问题是 - 在我的系统中,我有两个sig对象 - ClassA和ClassB。 After executing the alloy code I am generating the flow diagram.
执行合金代码后,我正在生成流程图。 Unfortunately, I am noticing my ClassB get referenced to ClassA of Mixture object.
不幸的是,我注意到我的ClassB引用了Mixture对象的ClassA。 I am attaching the diagram
我附上图表
I am also attaching my full code here. 我也在这里附上我的完整代码。 Can anyone help me debugging the problem, please?
有人可以帮我调试这个问题吗? I have tried to impose different predicate and logic, but none of them worked.
我试图强加不同的谓词和逻辑,但它们都没有奏效。
open util/ordering[State]
abstract sig Base{
name: String,
value : Int
}{
value >= 0
}
sig ClassA extends Base{
}{
name = "Class A"
}
sig ClassB extends Base{
}{
name = "Class B"
}
enum Event {EVENT1, EVENT2}
sig State{
mixture: Mixture
}
sig Mixture{
classA: Base,
classB: Base
} {
classA != classB
}
fact {
all s: State, s': s.next{
s.mixture ! in s'.*next.mixture
operation [s.mixture]
}
}
pred operation [mixture: Mixture]{
all ev: Event| ev = EVENT1 => {
mixture.classA.name = "Class A" => {
mixture.classA.value = 1
}
}
}
run random {} for 3
You have 你有
sig Mixture{
classA: Base,
classB: Base
}
In your diagram, the relations are named classA
and classB
. 在图中, 关系名为
classA
和classB
。 Since each can point to any arbitrary Base
, there's nothing stopping classA
from pointing to a ClassB
instance. 由于每个都可以指向任意
Base
,因此没有什么能阻止classA
指向ClassB
实例。 You probably want something like 你可能想要这样的东西
sig Mixture {
, classA: ClassA
, classB: ClassB
}
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