我目前正在编写一个程序,它在java中处理一些注释,然后构建一个合金模型,使用合金api解析它,然后运行一些合金命令。当我在合金应用程序中测试生成的合金模型时,它工作正常,并给出了预期的结果。然而,当我通过API运行生成的合金模型时,它告诉我:“您必须为sig this/ObjectName指定一个作用域”。我从这样的字符串中读取合金代码。
world = CompUtil.parseOneModule(String model);我使用的唯一选项是SAT4J求解器和skolemdepth为1。
然后,我迭代来自world的命令,将它们转换为kodkod,并执行它们。
for(Command command: world.getAllCommands()) {
A4Solution ans = null;
try {
ans = TranslateAlloyToKodkod.execute_command(rep, world.getAllReachableSigs(), command, options);
} catch (Err ex) {
Logger.getLogger(AlloyTest.class.getName()).log(Level.SEVERE, null, ex);
}
}我更新的合金代码如下所示:
module mvc
// General model
abstract sig Configuration { elements: set Element }
abstract sig Element { references: set Element }
// MVC Style
abstract sig Model extends Element { }
abstract sig View extends Element { }
abstract sig Controller extends Element { }
pred mvc_model_style [c: Configuration] {
all m: c.elements & Model | all r: m.references | r not in View
}
pred mvc_view_style [c: Configuration] {
all view: c.elements & View | all ref: view.references | ref not in Model
}
pred mvc_controller_style [c: Configuration] {
all controller: c.elements & Controller | all ref: controller.references | ref in Model or ref in View or ref in Controller
}
pred mvc_style [c: Configuration]{
mvc_model_style[c] mvc_view_style[c]
}
one sig testMvc extends Configuration { } {
elements = TestController + ViewTest + TestModel + TestController3
}
one sig TestController extends Controller { } {
references = TestController + TestModel
}
one sig ViewTest extends View { } {
references = TestController
}
one sig TestModel extends Model { } {
references = ViewTest + TestController3
}
one sig TestController3 extends Controller { } {
references = TestController + TestModel
}
assert testcontroller {
mvc_controller_style[testMvc]
}
assert viewtest {
mvc_view_style[testMvc]
}
assert testmodel {
mvc_model_style[testMvc]
}
assert testcontroller3 {
mvc_controller_style[testMvc]
}
check testcontroller for 8 but 1 Configuration
check viewtest for 8 but 1 Configuration
check testmodel for 8 but 1 Configuration
check testcontroller3 for 8 but 1 Configuration那么,有谁知道我如何解决这个问题,因为我认为for 1配置,8个元素将设置所有扩展sigs的范围?
编辑*
我用建议更新了我的合金模型,但仍然得到相同的错误:“你必须为sig " this /Controller”指定一个作用域。上面的合金代码在合金分析器中工作,并给出如下结果:
Executing "Check testcontroller for 8 but 1 Configuration"
Solver=sat4j Bitwidth=0 MaxSeq=0 SkolemDepth=1 Symmetry=20
83 vars. 26 primary vars. 98 clauses. 5ms.
No counterexample found. Assertion may be valid. 1ms.
Executing "Check viewtest for 8 but 1 Configuration"
Solver=sat4j Bitwidth=0 MaxSeq=0 SkolemDepth=1 Symmetry=20
65 vars. 25 primary vars. 75 clauses. 5ms.
No counterexample found. Assertion may be valid. 0ms.
Executing "Check testmodel for 8 but 1 Configuration"
Solver=sat4j Bitwidth=0 MaxSeq=0 SkolemDepth=1 Symmetry=20
65 vars. 25 primary vars. 75 clauses. 5ms.
found. Assertion is invalid. 6ms.
Executing "Check testcontroller3 for 8 but 1 Configuration"
Solver=sat4j Bitwidth=0 MaxSeq=0 SkolemDepth=1 Symmetry=20
83 vars. 26 primary vars. 98 clauses. 6ms.
No counterexample found. Assertion may be valid. 0ms.发布于 2013-01-27 04:36:48
你的合金模型包含语法错误,所以你也不能使用合金分析器运行它。
首先,指定测试控制器检查的范围的正确方法是
check testcontroller for 8 but 1 Configuration这意味着“8个原子的一切,但1个原子的配置”,而你写的不是事件解析。
接下来,mvc_controller_style谓词是未定义的,这也会给您带来问题。
至于您的接口使用,只需将parseOneModule更改为parseEverything_fromFile,它应该可以工作。我也希望parseOneModule能在这种情况下工作(因为在您的模型中只有一个模块),但它就是不能,因为,由于某些原因,一些名称不能被正确解析。我不确定这是否是一个bug,或者该方法不应该是公共API的一部分。无论如何,下面是我的代码,它们在您的示例中工作正常:
public static void main(String[] args) throws Exception {
A4Reporter rep = new A4Reporter();
Module world = CompUtil.parseEverything_fromFile(rep, null, "mvc.als");
A4Options options = new A4Options();
options.solver = A4Options.SatSolver.SAT4J;
options.skolemDepth = 1;
for (Command command : world.getAllCommands()) {
A4Solution ans = null;
try {
ans = TranslateAlloyToKodkod.execute_commandFromBook(rep, world.getAllReachableSigs(), command, options);
System.out.println(ans);
} catch (Err ex) {
Logger.getLogger(AlloyTest.class.getName()).log(Level.SEVERE, null, ex);
}
}
}https://stackoverflow.com/questions/14540945
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