Add field references, only for getstatic currently

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

@@ -38,4 +38,9 @@ public class Code extends Attribute
 	{
 		return maxLocals;
 	}
+
+	public void buildInstructionGraph()
+	{
+		instructions.buildInstructionGraph();
+	}
 }

src/main/java/info/sigterm/deob/attributes/code/Instruction.java

@@ -22,6 +22,11 @@ public class Instruction
 		this.pc = pc;
 	}
 
+	public Instructions getInstructions()
+	{
+		return instructions;
+	}
+
 	public int getPc()
 	{
 		return pc;
@@ -46,6 +51,10 @@ public class Instruction
 	{
 	}
 
+	public void buildInstructionGraph()
+	{
+	}
+
 	public void execute(Execution e)
 	{
 	}

src/main/java/info/sigterm/deob/attributes/code/Instructions.java

@@ -53,6 +53,12 @@ public class Instructions
 			i.buildJumpGraph();
 	}
 
+	public void buildInstructionGraph()
+	{
+		for (Instruction i : instructions)
+			i.buildInstructionGraph();
+	}
+
 	public Code getCode()
 	{
 		return code;

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

@@ -1,8 +1,13 @@
 package info.sigterm.deob.attributes.code.instructions;
 
+import info.sigterm.deob.ClassFile;
+import info.sigterm.deob.ConstantPool;
 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.pool.Class;
+import info.sigterm.deob.pool.Field;
+import info.sigterm.deob.pool.NameAndType;
 
 import java.io.DataInputStream;
 import java.io.IOException;
@@ -20,4 +25,23 @@ public class GetStatic extends Instruction
 		length += 2;
 	}
 
+	@Override
+	public void buildInstructionGraph()
+	{
+		ConstantPool pool = this.getInstructions().getCode().getAttributes().getClassFile().getPool();
+		Field entry = (Field) pool.getEntry(index);
+
+		Class clazz = entry.getClassEntry();
+		NameAndType nat = entry.getNameAndType();
+
+		ClassFile cf = this.getInstructions().getCode().getAttributes().getClassFile().getGroup().findClass(clazz.getName());
+		if (cf == null)
+			return;
+
+		info.sigterm.deob.Field f = cf.findField(nat);
+		assert f != null;
+
+		f.addReference(this);
+	}
+
 }