Dev from a brand new PC

.classpath

@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="src" path="test"/>
 	<classpathentry kind="con" path="org.eclipse.jdt.junit.JUNIT_CONTAINER/5"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
 	<classpathentry kind="output" path="bin"/>
 </classpath>

src/dev/peerat/parser/state/generator/GraphGenerator.java

@@ -28,7 +28,7 @@ public class GraphGenerator {
 	
 	public static class Graph{
 		
-		private static Pattern PATTERN = Pattern.compile("^(\\d+)\\s+->\s+(.*)$");
+		private static Pattern PATTERN = Pattern.compile("^(\\d+)\\s+->\\s+(.*)$");
 		
 		private List<Node> nodes;
 		

src/dev/peerat/parser/visitor/Operator.java

@@ -18,9 +18,7 @@ public class Operator{
 					VisitorBag vbag = visitor.visit(element);
 					if(!vbag.isValidated()) return new VisitorBag();
 					bag.merge(vbag);
-					for(Object computed : vbag.computeList()){
-						set.add(computed);
-					}
+					set.add(vbag.computed());
 				}
 				for(Object obj : set) bag.compute(obj);
 				return bag;
@@ -53,9 +51,7 @@ public class Operator{
 					VisitorBag vbag = visitor.visit(element);
 					if(!vbag.isValidated()) return new VisitorBag();
 					bag.merge(vbag);
-					for(Object computed : vbag.computeList()){
-						bag.compute(computed);
-					}
+					bag.compute(vbag.computed());
 					return bag;
 				}
 				return bag;
@@ -94,7 +90,7 @@ public class Operator{
 			
 			@Override
 			public boolean canPropagate(){
-				return true;
+				return visitor.canPropagate();
 			}
 		};
 	}
@@ -108,7 +104,6 @@ public class Operator{
 
 			@Override
 			public boolean canVisit(Class<?> type){
-//				System.out.println("collect can visit ? "+type);
 				return visitor.canVisit(type);
 			}
 			

src/dev/peerat/parser/visitor/VisitorBag.java

@@ -9,35 +9,39 @@ import java.util.Map;
 //only one pass in parameter or visit ?
 public class VisitorBag{
 	
-	private static final Object VALIDATE_BAG = new Object();
+	private static final Object VALIDATED_BAG = new Object();
 	
 	private List<Object> collect;
 	private Object computed;
 	
 	public VisitorBag(){
-		this.collect = new ArrayList<>();
+		this.collect = new ArrayList<>(0);
 	}
 	
 	public void compute(Object element){
 		this.computed = element;
 	}
 	
-	VisitorBag pair(Object key){
-		this.collect = Arrays.asList(new Pair<>(key, collect));
-		return this;
-	}
-	
 	public void merge(VisitorBag bag){
 		this.collect.addAll(bag.collect);
-		if(!this.collect.isEmpty()) this.computed = VALIDATE_BAG;
+		if((!this.collect.isEmpty()) && this.computed == null) this.computed = VALIDATED_BAG; 
+	}
+	
+	public Object computed(){
+		return this.computed;
 	}
 	
 	public boolean isValidated(){
-		return this.VALIDATE_BAG != null;
+		return this.computed != null;
+	}
+	
+	VisitorBag pair(Object key){
+		this.collect = Arrays.asList(new Pair<>(key, this.collect));
+		return this;
 	}
 	
 	VisitorBag collect(){
-		this.collect.addAll(this.list);
+		if(this.computed != null) this.collect.add(this.computed);
 		return this;
 	}