DetectUnusedRulesVisitor (edigen 1.5.2 API)

java.lang.Object
- net.emustudio.edigen.Visitor
- - net.emustudio.edigen.passes.DetectUnusedRulesVisitor

```
public class DetectUnusedRulesVisitor
extends Visitor
```
A visitor which finds unused rules. Unused rules are treated as errors.

Constructor Summary

Constructors
Constructor Description

DetectUnusedRulesVisitor()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`visit(Decoder decoder)`
`void`	`visit(Rule rule)`	In case of the root rule traverses it and saves references to other rules.
`void`	`visit(Subrule subrule)`

Methods inherited from class net.emustudio.edigen.Visitor
visit, visit, visit, visit, visit, visit, visit, visit

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - DetectUnusedRulesVisitor
```
public DetectUnusedRulesVisitor()
```
- Method Detail
  - visit
```
public void visit(Decoder decoder)
           throws SemanticException
```
    Overrides:
    
    visit in class Visitor
    
    Throws:
    
    SemanticException
  - visit
```
public void visit(Rule rule)
           throws SemanticException
```
    In case of the root rule traverses it and saves references to other rules. Otherwise detects possible unused rule by checking its name(s) in the saved references.
    
    Overrides:
    
    visit in class Visitor
    
    Parameters:
    
    rule - the rule node
    
    Throws:
    
    SemanticException - when unused rule is detected
  - visit
```
public void visit(Subrule subrule)
           throws SemanticException
```
    Overrides:
    
    visit in class Visitor
    
    Throws:
    
    SemanticException