Small fixes

src/main/java/info/sigterm/deob/attributes/Code.java

@@ -51,6 +51,11 @@ public class Code extends Attribute
 		return maxStack;
 	}
 	
+	public void setMaxStack(int maxStack)
+	{
+		this.maxStack = maxStack;
+	}
+	
 	private int getMaxLocalsFromSig()
 	{
 		Method m = super.getAttributes().getMethod();

src/main/java/info/sigterm/deob/attributes/code/instructions/NOP.java

@@ -4,6 +4,7 @@ import info.sigterm.deob.attributes.code.Instruction;
 import info.sigterm.deob.attributes.code.InstructionType;
 import info.sigterm.deob.attributes.code.Instructions;
 import info.sigterm.deob.execution.Frame;
+import info.sigterm.deob.execution.InstructionContext;
 
 import java.io.IOException;
 
@@ -22,5 +23,7 @@ public class NOP extends Instruction
 	@Override
 	public void execute(Frame frame)
 	{
+		InstructionContext ctx = new InstructionContext(this, frame);
+		frame.addInstructionContext(ctx);
 	}
 }

src/main/java/info/sigterm/deob/deobfuscators/MethodInliner.java

@@ -160,7 +160,10 @@ public class MethodInliner implements Deobfuscator
 				ins.getInstructions().add(invokeIdx++, storeIns);
 			}
 			
-			inline(m, i, invokedMethod, /*start*/lvtIndex);
+			int maxStack = code.getMaxStack() + invokedMethod.getCode().getMaxStack(); // not really right but ok
+			code.setMaxStack(maxStack);
+			
+			inline(m, i, invokedMethod, lvtIndex);
 			++inlineCount;
 			break;
 		}

src/main/java/info/sigterm/deob/deobfuscators/MethodMover.java

@@ -0,0 +1,90 @@
+package info.sigterm.deob.deobfuscators;
+
+import info.sigterm.deob.ClassFile;
+import info.sigterm.deob.ClassGroup;
+import info.sigterm.deob.Deobfuscator;
+import info.sigterm.deob.Method;
+import info.sigterm.deob.attributes.Code;
+import info.sigterm.deob.attributes.code.Instruction;
+import info.sigterm.deob.attributes.code.Instructions;
+import info.sigterm.deob.attributes.code.instructions.InvokeStatic;
+import java.util.Collection;
+import java.util.List;
+import org.apache.commons.collections4.map.MultiValueMap;
+
+// find static methods that are only called from methods of one class
+public class MethodMover implements Deobfuscator
+{
+	private MultiValueMap<Method, Method> calls = new MultiValueMap<>();
+	
+	private void buildCalls(ClassGroup group)
+	{
+		calls.clear();
+		
+		for (ClassFile cf : group.getClasses())
+		{
+			for (Method m : cf.getMethods().getMethods())
+			{
+				Code code = m.getCode();
+				
+				if (code == null)
+					continue;
+				
+				Instructions ins = code.getInstructions();
+				for (Instruction i : ins.getInstructions())
+				{
+					if (!(i instanceof InvokeStatic))
+						continue;
+					
+					InvokeStatic is = (InvokeStatic) i;
+					List<Method> methods = is.getMethods();
+					
+					if (methods.isEmpty())
+						continue;
+					
+					Method method = methods.get(0);
+					
+					calls.put(method, m);
+				}
+			}
+		}	
+	}
+	
+	private void look()
+	{
+		for (Method m : calls.keySet())
+		{
+			Collection<Method> values = calls.getCollection(m);
+			
+			boolean set = false;
+			ClassFile caller = null;
+			
+			for (Method m2 : values)
+			{
+				if (!set)
+				{
+					set = true;
+					caller = m2.getMethods().getClassFile();
+				}
+				
+				if (caller != m2.getMethods().getClassFile())
+				{
+					caller = null;
+				}
+			}
+			
+			if (caller == null)
+				continue;
+			
+			System.out.println(caller.getName() + " always calls " + m.getName() + " sz " + values.size());
+		}
+	}
+	
+	@Override
+	public void run(ClassGroup group)
+	{
+		group.buildClassGraph();
+		buildCalls(group);
+		look();
+	}
+}

src/main/java/info/sigterm/deob/deobfuscators/ModularArithmeticDeobfuscation.java

@@ -674,6 +674,8 @@ public class ModularArithmeticDeobfuscation implements Deobfuscator
 	@Override
 	public void run(ClassGroup group)
 	{
+		group.buildClassGraph();
+		
 		Execution execution = new Execution(group);
 		execution.populateInitialMethods();
 		execution.run();