refactor: add static methods for create DotGraphVisitor

jadx-core/src/main/java/jadx/core/Jadx.java

@@ -59,7 +59,7 @@ public class Jadx {
 			passes.add(new DebugInfoVisitor());
 			passes.add(new TypeInference());
 			if (args.isRawCFGOutput()) {
-				passes.add(new DotGraphVisitor(outDir, false, true));
+				passes.add(DotGraphVisitor.dumpRaw(outDir));
 			}
 
 			passes.add(new ConstInlinerVisitor());
@@ -72,7 +72,7 @@ public class Jadx {
 			passes.add(new CodeShrinker());
 			passes.add(new ReSugarCode());
 			if (args.isCFGOutput()) {
-				passes.add(new DotGraphVisitor(outDir, false));
+				passes.add(DotGraphVisitor.dump(outDir));
 			}
 
 			passes.add(new RegionMakerVisitor());
@@ -85,7 +85,7 @@ public class Jadx {
 			passes.add(new CheckRegions());
 
 			if (args.isCFGOutput()) {
-				passes.add(new DotGraphVisitor(outDir, true));
+				passes.add(DotGraphVisitor.dumpRegions(outDir));
 			}
 
 			passes.add(new MethodInlineVisitor());

jadx-core/src/main/java/jadx/core/dex/visitors/DotGraphVisitor.java

@@ -30,16 +30,28 @@ public class DotGraphVisitor extends AbstractVisitor {
 	private final boolean useRegions;
 	private final boolean rawInsn;
 
-	public DotGraphVisitor(File outDir, boolean useRegions, boolean rawInsn) {
+	public static DotGraphVisitor dump(File outDir) {
+		return new DotGraphVisitor(outDir, false, false);
+	}
+
+	public static DotGraphVisitor dumpRaw(File outDir) {
+		return new DotGraphVisitor(outDir, false, true);
+	}
+
+	public static DotGraphVisitor dumpRegions(File outDir) {
+		return new DotGraphVisitor(outDir, true, false);
+	}
+
+	public static DotGraphVisitor dumpRawRegions(File outDir) {
+		return new DotGraphVisitor(outDir, true, true);
+	}
+
+	private DotGraphVisitor(File outDir, boolean useRegions, boolean rawInsn) {
 		this.dir = outDir;
 		this.useRegions = useRegions;
 		this.rawInsn = rawInsn;
 	}
 
-	public DotGraphVisitor(File outDir, boolean useRegions) {
-		this(outDir, useRegions, false);
-	}
-
 	@Override
 	public void visit(MethodNode mth) {
 		if (mth.isNoCode()) {