Package org.objectweb.asm.tree

Examples of org.objectweb.asm.tree.InsnList$InsnListIterator

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      MethodNode m = methods.next();
     
      if (m.name.equals(names.get("netServerHandler_handleUpdateSign_func")) && m.desc.equals(names.get("netServerHandler_handleUpdateSign_desc"))) {
        System.out.println("Found target method in NetServerHandler: " + m.name + m.desc);
       
        InsnList insns = new InsnList();
        insns.add(new VarInsnNode(Opcodes.ALOAD, 0));
        insns.add(new VarInsnNode(Opcodes.ALOAD, 1));
        insns.add(new MethodInsnNode(Opcodes.INVOKESTATIC, "keepcalm/mods/events/ForgeEventHelper", "onSignChange", "(L" + names.get("netServerHandler_javaName") + ";L" + names.get("packet130UpdateSign_javaName") + ";)L" + names.get("packet130UpdateSign_javaName") + ";" ));
        LabelNode endIf = new LabelNode(new Label());
        insns.add(new VarInsnNode(Opcodes.ASTORE, 1));
        insns.add(new VarInsnNode(Opcodes.ALOAD, 1));
        insns.add(new JumpInsnNode(Opcodes.IFNONNULL, endIf));
        insns.add(new InsnNode(Opcodes.RETURN));
        insns.add(endIf);
       
        m.instructions.insert(insns);
      }
    }
   
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            ifnes++;
            if (ifnes == 2) {
              // insert!
              i++;
              System.out.println("Found second IFNE node from the end, inserting code...");
              InsnList insns = new InsnList();
             
              insns.add(new VarInsnNode(Opcodes.ALOAD, 0));
              insns.add(new VarInsnNode(Opcodes.ALOAD, 1));
              insns.add(new VarInsnNode(Opcodes.ILOAD, 2));
              insns.add(new VarInsnNode(Opcodes.ILOAD, 3));
              insns.add(new VarInsnNode(Opcodes.ILOAD, 4));
              insns.add(new MethodInsnNode(Opcodes.INVOKESTATIC, "keepcalm/mods/events/ForgeEventHelper",
                  "onPressurePlateInteract", "(L" + names.get("blockPressurePlate_javaName") + ";L" + names.get("world_javaName") + ";III)Z"));
              LabelNode endIf = new LabelNode(new Label());
              insns.add(new JumpInsnNode(Opcodes.IFEQ, endIf));
              insns.add(new InsnNode(Opcodes.RETURN));
              insns.add(endIf);
              insns.add(new LabelNode(new Label()));
             
              m.instructions.insertBefore(m.instructions.get(i), insns);
             
            }
          }
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      MethodNode m = methods.next();
     
      if (m.name.equals(names.get("netServerHandler_handleFlying_func")) && m.desc.equals(names.get("netServerHandler_handleFlying_desc"))) {
        System.out.println("Found target method: " + m.name + m.desc + "! Inserting code...");
       
        InsnList toInsert = new InsnList();
        toInsert.add(new VarInsnNode(Opcodes.ALOAD, 1));
        toInsert.add(new VarInsnNode(Opcodes.ALOAD, 0));
        toInsert.add(new MethodInsnNode(Opcodes.INVOKESTATIC, "keepcalm/mods/events/ForgeEventHelper", "onPlayerMove",
            "(L" + names.get("packet10Flying_javaName") + ";L" + names.get("netServerHandler_javaName") + ";)Z"));
        LabelNode endIf = new LabelNode(new Label());
        toInsert.add(new JumpInsnNode(Opcodes.IFEQ, endIf));
        toInsert.add(new InsnNode(Opcodes.RETURN));
        toInsert.add(endIf);
        toInsert.add(new LabelNode(new Label()));
        m.instructions.insert(toInsert);
       
       
      }
    }
View Full Code Here
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        for (int idx = 0; idx < m.instructions.size(); idx++) {
          if (m.instructions.get(idx).getOpcode() == Opcodes.ISTORE) {
            System.out.println("Found ISTORE at index " + idx + ", inserting code afterwards...");
            idx++; // AFTERwards, not before ;)
           
            InsnList toAdd = new InsnList();
           
            // to mark the end of the code
            LabelNode lmmnode = new LabelNode(new Label());
            // load this
            toAdd.add(new VarInsnNode(Opcodes.ALOAD, 0));
            // new fleece colour
            toAdd.add(new VarInsnNode(Opcodes.ILOAD, 1));
            // old fleece colour
            toAdd.add(new VarInsnNode(Opcodes.ILOAD, 2));
            toAdd.add(new MethodInsnNode(Opcodes.INVOKESTATIC, "keepcalm/mods/events/ForgeEventHelper", "onSheepDye", "(L" + names.get("entitySheep_javaName") + ";II)Z"));
            LabelNode endIf = new LabelNode(new Label());
            toAdd.add(new JumpInsnNode(Opcodes.IFEQ, endIf));
            toAdd.add(new InsnNode(Opcodes.RETURN));
            toAdd.add(endIf);
            toAdd.add(lmmnode);
           
            m.instructions.insertBefore(m.instructions.get(idx), toAdd);
            break;
          }
        }
View Full Code Here
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        for (int i = m.instructions.size() - 1; i >= 0; i--) {
          if (m.instructions.get(i).getOpcode() == Opcodes.IFNE) {
            System.out.println("Found insertion point! inserting code!");
            i++;
           
            InsnList insns = new InsnList();
           
            insns.add(new VarInsnNode(Opcodes.ALOAD, 0));
            insns.add(new MethodInsnNode(Opcodes.INVOKESTATIC, "keepcalm/mods/events/ForgeEventHelper", "onCreeperExplode", "(L" + names.get("entityCreeper_javaName") + ";)Z"));
            LabelNode endIf = new LabelNode(new Label());
            insns.add(new JumpInsnNode(Opcodes.IFEQ, endIf));
            //insns.add(new VarInsnNode(Opcodes.ALOAD, 0));
            //insns.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL, names.get("entityCreeper_javaName"), names.get("entityCreeper_setDead_func"), names.get("entityCreeper_setDead_desc")));
            insns.add(new InsnNode(Opcodes.RETURN));
            insns.add(endIf);
            insns.add(new LabelNode(new Label()));
           
            m.instructions.insertBefore(m.instructions.get(i), insns);
            break;
          }
        }
View Full Code Here
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