add a cli flag to ignore constraints

e-Knife/src/main/java/eknife/EKnife.java

@@ -35,6 +35,7 @@ import java.io.File;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Set;
+import java.lang.reflect.InvocationTargetException;
 
 public class EKnife {
 	public enum Language {Java, Erlang, Php}
@@ -157,6 +158,9 @@ public class EKnife {
 				case "--print-graph":
 					kArgs.setGraphFile(new File(args[argIndex + 1]));
 					break;
+				case "--ignore-constraints":
+					kArgs.algClass = AdaptedStandardAlgorithm.class;
+					break;
 			}
 		}
 
@@ -176,6 +180,7 @@ public class EKnife {
 		help += "  -n,--occurrence <num>       The occurrence of the slicing criterion in that line\n";
 		help += "  -G,--print-graph <file.dot> Exports the graph as a dot file\n";
 		help += "  -G,--print-graph <file.pdf> Exports the graph as a PDF file\n";
+		help += "  --ignore-constraints        Generates constraints but ignores when slicing\n";
 		help += "  --help                      Show this message.\n";
 
 		System.out.print(help);
@@ -192,8 +197,7 @@ public class EKnife {
 			System.exit(1);
 		}
 
-//		final SlicingAlgorithm slicingAlgorithm = new AdaptedStandardAlgorithm(edg);
-		final SlicingAlgorithm slicingAlgorithm = new OnePassConstrainedAlgorithm(edg);
+		final SlicingAlgorithm slicingAlgorithm = a.getAlgorithm(edg);
 		final Set<Node> slice = slicingAlgorithm.slice(SC);
 		if (slice.isEmpty()) {
 			System.out.println("Warning: no files will be written, as the slice is empty.");
@@ -599,6 +603,7 @@ public class EKnife {
 		int occurrence = 1;
 		File graphFile;
 		GraphFormat graphFormat;
+		Class<? extends SlicingAlgorithm> algClass = OnePassConstrainedAlgorithm.class;
 
 
 		void setGraphFile(File graphFile) {
@@ -640,6 +645,14 @@ public class EKnife {
 				System.out.println(error);
 			return errors.isEmpty();
 		}
+
+		SlicingAlgorithm getAlgorithm(EDG edg) {
+			try {
+				return algClass.getConstructor(EDG.class).newInstance(edg);
+			} catch (NoSuchMethodException | InvocationTargetException | InstantiationException | IllegalAccessException e) {
+				throw new RuntimeException(e);
+			}
+		}
 	}
 
 	public static class SlicingCriterionState{