List of usage examples for org.objectweb.asm Opcodes GETFIELD
int GETFIELD
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From source file:bytecode.InstructionExporter.java
License:Apache License
/** * Outputs a read operation, choosing both the correct opcode family (variable * read, array load, field get, etc.) and type. * * @param instruction Read instruction./*from ww w . j a va 2 s .com*/ * @return <code>null</code> */ @Override public Void visit(Read instruction) { // Variable Reads if (instruction.getState() instanceof Variable) { Variable v = (Variable) instruction.getState(); switch (v.getType().getSort()) { case LONG: mv.visitVarInsn(Opcodes.LLOAD, v.getIndex()); break; case FLOAT: mv.visitVarInsn(Opcodes.FLOAD, v.getIndex()); break; case DOUBLE: mv.visitVarInsn(Opcodes.DLOAD, v.getIndex()); break; case REF: mv.visitVarInsn(Opcodes.ALOAD, v.getIndex()); break; default: mv.visitVarInsn(Opcodes.ILOAD, v.getIndex()); break; } // Array Loads } else if (instruction.getState() instanceof ArrayElement) { switch (instruction.getState().getType().getSort()) { case INT: mv.visitInsn(Opcodes.IALOAD); break; case LONG: mv.visitInsn(Opcodes.LALOAD); break; case FLOAT: mv.visitInsn(Opcodes.FALOAD); break; case DOUBLE: mv.visitInsn(Opcodes.DALOAD); break; case REF: mv.visitInsn(Opcodes.AALOAD); break; case BYTE: mv.visitInsn(Opcodes.BALOAD); break; case BOOL: mv.visitInsn(Opcodes.BALOAD); break; case CHAR: mv.visitInsn(Opcodes.CALOAD); break; case SHORT: mv.visitInsn(Opcodes.SALOAD); break; } // Static Reads } else if (instruction.getState() instanceof Field) { Field f = (Field) instruction.getState(); mv.visitFieldInsn(Opcodes.GETSTATIC, f.getOwner().getName(), f.getName(), f.getType().getDescriptor()); // Field Reads } else if (instruction.getState() instanceof InstanceField) { Field f = (Field) ((InstanceField) instruction.getState()).getField(); mv.visitFieldInsn(Opcodes.GETFIELD, f.getOwner().getName(), f.getName(), f.getType().getDescriptor()); } return null; }
From source file:bytecode.MethodImporter.java
License:Apache License
/** * Imports field instructions (put and get), both for static and instance * fields./*from ww w .j ava 2 s. c o m*/ * * @param opcode Opcode. * @param owner Class containing the field. * @param name Name of field. * @param desc Type descriptor of field. */ @Override public void visitFieldInsn(final int opcode, final String owner, final String name, final String desc) { Field f = ClassNode.getClass(owner).getField(name, desc); if (((opcode == Opcodes.GETSTATIC) || (opcode == Opcodes.PUTSTATIC)) != f.getModifiers() .contains(Modifier.STATIC)) { throw new RuntimeException("Field staticness conflicts with instruction"); } switch (opcode) { // Loads case Opcodes.GETSTATIC: case Opcodes.GETFIELD: createFieldRead(f); break; // Stores case Opcodes.PUTSTATIC: case Opcodes.PUTFIELD: createFieldWrite(f); break; } }
From source file:Client.JClassPatcher.java
License:Open Source License
private void patchClient(ClassNode node) { Logger.Info("Patching client (" + node.name + ".class)"); Iterator<MethodNode> methodNodeList = node.methods.iterator(); while (methodNodeList.hasNext()) { MethodNode methodNode = methodNodeList.next(); // I (I)V is where most of the interface is processed if (methodNode.name.equals("I") && methodNode.desc.equals("(I)V")) { // Show combat menu Iterator<AbstractInsnNode> insnNodeList = methodNode.instructions.iterator(); while (insnNodeList.hasNext()) { AbstractInsnNode insnNode = insnNodeList.next(); if (insnNode.getOpcode() == Opcodes.BIPUSH) { IntInsnNode bipush = (IntInsnNode) insnNode; if (bipush.operand == -9) { AbstractInsnNode findNode = insnNode; while (findNode.getOpcode() != Opcodes.IF_ICMPEQ) findNode = findNode.getNext(); LabelNode label = ((JumpInsnNode) findNode).label; methodNode.instructions.insertBefore(insnNode, new FieldInsnNode(Opcodes.GETSTATIC, "Client/Settings", "COMBAT_MENU", "Z")); methodNode.instructions.insertBefore(insnNode, new JumpInsnNode(Opcodes.IFGT, label)); break; }/*from w ww.j ava 2s . co m*/ } } } else if (methodNode.name.equals("J") && methodNode.desc.equals("(I)V")) { Iterator<AbstractInsnNode> insnNodeList = methodNode.instructions.iterator(); while (insnNodeList.hasNext()) { AbstractInsnNode insnNode = insnNodeList.next(); // Chat command patch if (insnNode.getOpcode() == Opcodes.SIPUSH) { IntInsnNode call = (IntInsnNode) insnNode; if (call.operand == 627) { AbstractInsnNode jmpNode = insnNode; while (jmpNode.getOpcode() != Opcodes.IFEQ) jmpNode = jmpNode.getNext(); AbstractInsnNode insertNode = insnNode; while (insertNode.getOpcode() != Opcodes.INVOKEVIRTUAL) insertNode = insertNode.getPrevious(); JumpInsnNode jmp = (JumpInsnNode) jmpNode; methodNode.instructions.insert(insertNode, new VarInsnNode(Opcodes.ASTORE, 2)); methodNode.instructions.insert(insertNode, new MethodInsnNode(Opcodes.INVOKESTATIC, "Game/Client", "processChatCommand", "(Ljava/lang/String;)Ljava/lang/String;")); methodNode.instructions.insert(insertNode, new VarInsnNode(Opcodes.ALOAD, 2)); } } } } else if (methodNode.name.equals("h") && methodNode.desc.equals("(B)V")) { Iterator<AbstractInsnNode> insnNodeList = methodNode.instructions.iterator(); while (insnNodeList.hasNext()) { AbstractInsnNode insnNode = insnNodeList.next(); // Private chat command patch if (insnNode.getOpcode() == Opcodes.GETFIELD) { FieldInsnNode field = (FieldInsnNode) insnNode; if (field.owner.equals("client") && field.name.equals("Ob") && insnNode.getPrevious().getPrevious().getOpcode() != Opcodes.INVOKEVIRTUAL) { insnNode = insnNode.getPrevious().getPrevious(); methodNode.instructions.insert(insnNode, new FieldInsnNode(Opcodes.PUTFIELD, "client", "Ob", "Ljava/lang/String;")); methodNode.instructions.insert(insnNode, new MethodInsnNode(Opcodes.INVOKESTATIC, "Game/Client", "processPrivateCommand", "(Ljava/lang/String;)Ljava/lang/String;")); methodNode.instructions.insert(insnNode, new FieldInsnNode(Opcodes.GETFIELD, "client", "Ob", "Ljava/lang/String;")); methodNode.instructions.insert(insnNode, new VarInsnNode(Opcodes.ALOAD, 0)); methodNode.instructions.insert(insnNode, new VarInsnNode(Opcodes.ALOAD, 0)); break; } } } } else if (methodNode.name.equals("a") && methodNode.desc.equals("(IIIIIIII)V")) { // Draw NPC hook AbstractInsnNode insnNode = methodNode.instructions.getLast(); methodNode.instructions.insertBefore(insnNode, new VarInsnNode(Opcodes.ILOAD, 8)); methodNode.instructions.insertBefore(insnNode, new VarInsnNode(Opcodes.ILOAD, 1)); methodNode.instructions.insertBefore(insnNode, new VarInsnNode(Opcodes.ILOAD, 7)); methodNode.instructions.insertBefore(insnNode, new VarInsnNode(Opcodes.ILOAD, 4)); methodNode.instructions.insertBefore(insnNode, new FieldInsnNode(Opcodes.GETSTATIC, "e", "Mb", "[Ljava/lang/String;")); methodNode.instructions.insertBefore(insnNode, new VarInsnNode(Opcodes.ALOAD, 0)); methodNode.instructions.insertBefore(insnNode, new FieldInsnNode(Opcodes.GETFIELD, "client", "Tb", "[Lta;")); methodNode.instructions.insertBefore(insnNode, new VarInsnNode(Opcodes.ILOAD, 6)); methodNode.instructions.insertBefore(insnNode, new InsnNode(Opcodes.AALOAD)); methodNode.instructions.insertBefore(insnNode, new FieldInsnNode(Opcodes.GETFIELD, "ta", "t", "I")); methodNode.instructions.insertBefore(insnNode, new InsnNode(Opcodes.AALOAD)); methodNode.instructions.insertBefore(insnNode, new MethodInsnNode(Opcodes.INVOKESTATIC, "Game/Client", "drawNPC", "(IIIILjava/lang/String;)V")); } else if (methodNode.name.equals("b") && methodNode.desc.equals("(IIIIIIII)V")) { // Draw Player hook AbstractInsnNode insnNode = methodNode.instructions.getLast(); methodNode.instructions.insertBefore(insnNode, new VarInsnNode(Opcodes.ILOAD, 5)); methodNode.instructions.insertBefore(insnNode, new VarInsnNode(Opcodes.ILOAD, 6)); methodNode.instructions.insertBefore(insnNode, new VarInsnNode(Opcodes.ILOAD, 2)); methodNode.instructions.insertBefore(insnNode, new VarInsnNode(Opcodes.ILOAD, 7)); methodNode.instructions.insertBefore(insnNode, new VarInsnNode(Opcodes.ALOAD, 0)); methodNode.instructions.insertBefore(insnNode, new FieldInsnNode(Opcodes.GETFIELD, "client", "rg", "[Lta;")); methodNode.instructions.insertBefore(insnNode, new VarInsnNode(Opcodes.ILOAD, 8)); methodNode.instructions.insertBefore(insnNode, new InsnNode(Opcodes.AALOAD)); methodNode.instructions.insertBefore(insnNode, new FieldInsnNode(Opcodes.GETFIELD, "ta", "C", "Ljava/lang/String;")); methodNode.instructions.insertBefore(insnNode, new MethodInsnNode(Opcodes.INVOKESTATIC, "Game/Client", "drawPlayer", "(IIIILjava/lang/String;)V")); } else if (methodNode.name.equals("b") && methodNode.desc.equals("(IIIIIII)V")) { // Draw Item hook // ILOAD 4 is item id AbstractInsnNode insnNode = methodNode.instructions.getLast(); methodNode.instructions.insertBefore(insnNode, new VarInsnNode(Opcodes.ILOAD, 3)); methodNode.instructions.insertBefore(insnNode, new VarInsnNode(Opcodes.ILOAD, 7)); methodNode.instructions.insertBefore(insnNode, new VarInsnNode(Opcodes.ILOAD, 5)); methodNode.instructions.insertBefore(insnNode, new VarInsnNode(Opcodes.ILOAD, 1)); methodNode.instructions.insertBefore(insnNode, new VarInsnNode(Opcodes.ILOAD, 4)); methodNode.instructions.insertBefore(insnNode, new MethodInsnNode(Opcodes.INVOKESTATIC, "Game/Client", "drawItem", "(IIIII)V")); } else if (methodNode.name.equals("L") && methodNode.desc.equals("(I)V")) { Iterator<AbstractInsnNode> insnNodeList = methodNode.instructions.iterator(); while (insnNodeList.hasNext()) { AbstractInsnNode insnNode = insnNodeList.next(); // Right click bounds fix if (insnNode.getOpcode() == Opcodes.SIPUSH) { IntInsnNode call = (IntInsnNode) insnNode; AbstractInsnNode nextNode = insnNode.getNext(); if (call.operand == 510) { call.operand = 512 - call.operand; methodNode.instructions.insertBefore(insnNode, new FieldInsnNode(Opcodes.GETSTATIC, "Game/Renderer", "width", "I")); methodNode.instructions.insert(insnNode, new InsnNode(Opcodes.ISUB)); } else if (call.operand == 315) { call.operand = 334 - call.operand; methodNode.instructions.insertBefore(insnNode, new FieldInsnNode(Opcodes.GETSTATIC, "Game/Renderer", "height_client", "I")); methodNode.instructions.insert(insnNode, new InsnNode(Opcodes.ISUB)); } else if (call.operand == -316) { call.operand = 334 - (call.operand * -1); methodNode.instructions.insertBefore(insnNode, new FieldInsnNode(Opcodes.GETSTATIC, "Game/Renderer", "height_client", "I")); methodNode.instructions.insert(insnNode, new InsnNode(Opcodes.INEG)); methodNode.instructions.insert(insnNode, new InsnNode(Opcodes.ISUB)); } } } } else if (methodNode.name.equals("a") && methodNode.desc.equals("(ZZ)V")) { Iterator<AbstractInsnNode> insnNodeList = methodNode.instructions.iterator(); while (insnNodeList.hasNext()) { AbstractInsnNode insnNode = insnNodeList.next(); // Friends chat mouse fix if (insnNode.getOpcode() == Opcodes.SIPUSH) { IntInsnNode call = (IntInsnNode) insnNode; if (call.operand == 489 || call.operand == 429) { call.operand = 512 - call.operand; methodNode.instructions.insertBefore(insnNode, new FieldInsnNode(Opcodes.GETSTATIC, "Game/Renderer", "width", "I")); methodNode.instructions.insert(insnNode, new InsnNode(Opcodes.ISUB)); } if (call.operand == -430) { call.operand = 512 - (call.operand * -1); methodNode.instructions.insertBefore(insnNode, new FieldInsnNode(Opcodes.GETSTATIC, "Game/Renderer", "width", "I")); methodNode.instructions.insert(insnNode, new InsnNode(Opcodes.INEG)); methodNode.instructions.insert(insnNode, new InsnNode(Opcodes.ISUB)); } } } } else if (methodNode.name.equals("i") && methodNode.desc.equals("(I)V")) { AbstractInsnNode lastNode = methodNode.instructions.getLast().getPrevious(); // Send combat style option LabelNode label = new LabelNode(); methodNode.instructions.insert(lastNode, label); // Format methodNode.instructions.insert(lastNode, new MethodInsnNode(Opcodes.INVOKEVIRTUAL, "da", "b", "(I)V", false)); methodNode.instructions.insert(lastNode, new IntInsnNode(Opcodes.SIPUSH, 21294)); methodNode.instructions.insert(lastNode, new FieldInsnNode(Opcodes.GETFIELD, "client", "Jh", "Lda;")); methodNode.instructions.insert(lastNode, new VarInsnNode(Opcodes.ALOAD, 0)); // Write byte methodNode.instructions.insert(lastNode, new MethodInsnNode(Opcodes.INVOKEVIRTUAL, "ja", "c", "(II)V", false)); methodNode.instructions.insert(lastNode, new IntInsnNode(Opcodes.BIPUSH, -80)); methodNode.instructions.insert(lastNode, new FieldInsnNode(Opcodes.GETSTATIC, "Client/Settings", "COMBAT_STYLE", "I")); methodNode.instructions.insert(lastNode, new FieldInsnNode(Opcodes.GETFIELD, "da", "f", "Lja;")); methodNode.instructions.insert(lastNode, new FieldInsnNode(Opcodes.GETFIELD, "client", "Jh", "Lda;")); methodNode.instructions.insert(lastNode, new VarInsnNode(Opcodes.ALOAD, 0)); // Create Packet methodNode.instructions.insert(lastNode, new MethodInsnNode(Opcodes.INVOKEVIRTUAL, "da", "b", "(II)V", false)); methodNode.instructions.insert(lastNode, new InsnNode(Opcodes.ICONST_0)); methodNode.instructions.insert(lastNode, new IntInsnNode(Opcodes.BIPUSH, 29)); methodNode.instructions.insert(lastNode, new FieldInsnNode(Opcodes.GETFIELD, "client", "Jh", "Lda;")); methodNode.instructions.insert(lastNode, new VarInsnNode(Opcodes.ALOAD, 0)); // Skip combat packet if style is already controlled methodNode.instructions.insert(lastNode, new JumpInsnNode(Opcodes.IF_ICMPLE, label)); methodNode.instructions.insert(lastNode, new InsnNode(Opcodes.ICONST_0)); methodNode.instructions.insert(lastNode, new FieldInsnNode(Opcodes.GETSTATIC, "Client/Settings", "COMBAT_STYLE", "I")); // Client init_game methodNode.instructions.insert(lastNode, new MethodInsnNode(Opcodes.INVOKESTATIC, "Game/Client", "init_game", "()V", false)); } else if (methodNode.name.equals("o") && methodNode.desc.equals("(I)V")) { // Client.init_login patch AbstractInsnNode findNode = methodNode.instructions.getLast(); methodNode.instructions.insertBefore(findNode, new MethodInsnNode(Opcodes.INVOKESTATIC, "Game/Client", "init_login", "()V", false)); } else if (methodNode.name.equals("a") && methodNode.desc.equals("(B)V")) { Iterator<AbstractInsnNode> insnNodeList = methodNode.instructions.iterator(); while (insnNodeList.hasNext()) { AbstractInsnNode insnNode = insnNodeList.next(); // Camera view distance crash fix if (insnNode.getOpcode() == Opcodes.SIPUSH) { IntInsnNode call = (IntInsnNode) insnNode; if (call.operand == 15000) { call.operand = 32767; } } } // Client.init patch AbstractInsnNode findNode = methodNode.instructions.getFirst(); methodNode.instructions.insertBefore(findNode, new VarInsnNode(Opcodes.ALOAD, 0)); methodNode.instructions.insertBefore(findNode, new FieldInsnNode(Opcodes.PUTSTATIC, "Game/Client", "instance", "Ljava/lang/Object;")); methodNode.instructions.insertBefore(findNode, new MethodInsnNode(Opcodes.INVOKESTATIC, "Game/Client", "init", "()V", false)); } else if (methodNode.name.equals("G") && methodNode.desc.equals("(I)V")) { // TODO: This can be shortened, I'll fix it another time // NPC Dialogue keyboard AbstractInsnNode lastNode = methodNode.instructions.getLast().getPrevious(); LabelNode label = new LabelNode(); methodNode.instructions.insert(lastNode, label); // Hide dialogue methodNode.instructions.insert(lastNode, new FieldInsnNode(Opcodes.PUTFIELD, "client", "Ph", "Z")); methodNode.instructions.insert(lastNode, new InsnNode(Opcodes.ICONST_0)); methodNode.instructions.insert(lastNode, new VarInsnNode(Opcodes.ALOAD, 0)); // Format methodNode.instructions.insert(lastNode, new MethodInsnNode(Opcodes.INVOKEVIRTUAL, "da", "b", "(I)V", false)); methodNode.instructions.insert(lastNode, new IntInsnNode(Opcodes.SIPUSH, 21294)); methodNode.instructions.insert(lastNode, new FieldInsnNode(Opcodes.GETFIELD, "client", "Jh", "Lda;")); methodNode.instructions.insert(lastNode, new VarInsnNode(Opcodes.ALOAD, 0)); // Write byte methodNode.instructions.insert(lastNode, new MethodInsnNode(Opcodes.INVOKEVIRTUAL, "ja", "c", "(II)V", false)); methodNode.instructions.insert(lastNode, new IntInsnNode(Opcodes.BIPUSH, 115)); methodNode.instructions.insert(lastNode, new FieldInsnNode(Opcodes.GETSTATIC, "Game/KeyboardHandler", "dialogue_option", "I")); methodNode.instructions.insert(lastNode, new FieldInsnNode(Opcodes.GETFIELD, "da", "f", "Lja;")); methodNode.instructions.insert(lastNode, new FieldInsnNode(Opcodes.GETFIELD, "client", "Jh", "Lda;")); methodNode.instructions.insert(lastNode, new VarInsnNode(Opcodes.ALOAD, 0)); // Create Packet methodNode.instructions.insert(lastNode, new MethodInsnNode(Opcodes.INVOKEVIRTUAL, "da", "b", "(II)V", false)); methodNode.instructions.insert(lastNode, new InsnNode(Opcodes.ICONST_0)); methodNode.instructions.insert(lastNode, new IntInsnNode(Opcodes.BIPUSH, 116)); methodNode.instructions.insert(lastNode, new FieldInsnNode(Opcodes.GETFIELD, "client", "Jh", "Lda;")); methodNode.instructions.insert(lastNode, new VarInsnNode(Opcodes.ALOAD, 0)); // Check if dialogue option is pressed methodNode.instructions.insert(lastNode, new JumpInsnNode(Opcodes.IF_ICMPGE, label)); // Menu option count methodNode.instructions.insert(lastNode, new FieldInsnNode(Opcodes.GETFIELD, "client", "Id", "I")); methodNode.instructions.insert(lastNode, new VarInsnNode(Opcodes.ALOAD, 0)); methodNode.instructions.insert(lastNode, new FieldInsnNode(Opcodes.GETSTATIC, "Game/KeyboardHandler", "dialogue_option", "I")); methodNode.instructions.insert(lastNode, new JumpInsnNode(Opcodes.IFLT, label)); methodNode.instructions.insert(lastNode, new FieldInsnNode(Opcodes.GETSTATIC, "Game/KeyboardHandler", "dialogue_option", "I")); } else if (methodNode.name.equals("f") && methodNode.desc.equals("(I)V")) { Iterator<AbstractInsnNode> insnNodeList = methodNode.instructions.iterator(); while (insnNodeList.hasNext()) { AbstractInsnNode insnNode = insnNodeList.next(); // Hide Roof option if (insnNode.getOpcode() == Opcodes.GETFIELD) { FieldInsnNode field = (FieldInsnNode) insnNode; if (field.owner.equals("client") && field.name.equals("yj")) { AbstractInsnNode nextNode = insnNode.getNext(); if (nextNode.getOpcode() == Opcodes.IFNE) { LabelNode label = ((JumpInsnNode) nextNode).label; methodNode.instructions.insert(nextNode, new JumpInsnNode(Opcodes.IFGT, label)); methodNode.instructions.insert(nextNode, new FieldInsnNode(Opcodes.GETSTATIC, "Client/Settings", "HIDE_ROOFS", "Z")); } } } // Move wilderness skull if (insnNode.getOpcode() == Opcodes.SIPUSH) { IntInsnNode call = (IntInsnNode) insnNode; if (call.operand == 465 || call.operand == 453) { call.operand = 512 - call.operand; methodNode.instructions.insertBefore(insnNode, new FieldInsnNode(Opcodes.GETSTATIC, "Game/Renderer", "width", "I")); methodNode.instructions.insert(insnNode, new InsnNode(Opcodes.ISUB)); } } } } else if (methodNode.name.equals("a") && methodNode.desc.equals("(IIZ)Z")) { Iterator<AbstractInsnNode> insnNodeList = methodNode.instructions.iterator(); while (insnNodeList.hasNext()) { AbstractInsnNode insnNode = insnNodeList.next(); // Move the load screen text dialogue if (insnNode.getOpcode() == Opcodes.SIPUSH) { IntInsnNode call = (IntInsnNode) insnNode; if (call.operand == 256) { call.operand = 2; methodNode.instructions.insertBefore(insnNode, new FieldInsnNode(Opcodes.GETSTATIC, "Game/Renderer", "width", "I")); methodNode.instructions.insert(insnNode, new InsnNode(Opcodes.IDIV)); } else if (call.operand == 192) { call.operand = 2; methodNode.instructions.insertBefore(insnNode, new FieldInsnNode(Opcodes.GETSTATIC, "Game/Renderer", "height", "I")); methodNode.instructions.insert(insnNode, new InsnNode(Opcodes.IADD)); methodNode.instructions.insert(insnNode, new IntInsnNode(Opcodes.SIPUSH, 19)); methodNode.instructions.insert(insnNode, new InsnNode(Opcodes.IDIV)); } } } } else if (methodNode.name.equals("d") && methodNode.desc.equals("(B)V")) { Iterator<AbstractInsnNode> insnNodeList = methodNode.instructions.iterator(); while (insnNodeList.hasNext()) { AbstractInsnNode insnNode = insnNodeList.next(); // Center logout dialogue if (insnNode.getOpcode() == Opcodes.SIPUSH || insnNode.getOpcode() == Opcodes.BIPUSH) { IntInsnNode call = (IntInsnNode) insnNode; if (call.operand == 256) { call.operand = 2; methodNode.instructions.insertBefore(insnNode, new FieldInsnNode(Opcodes.GETSTATIC, "Game/Renderer", "width", "I")); methodNode.instructions.insert(insnNode, new InsnNode(Opcodes.IDIV)); } else if (call.operand == 173) { call.operand = 2; methodNode.instructions.insertBefore(insnNode, new FieldInsnNode(Opcodes.GETSTATIC, "Game/Renderer", "height", "I")); methodNode.instructions.insert(insnNode, new InsnNode(Opcodes.IDIV)); } else if (call.operand == 126) { call.operand = 2; methodNode.instructions.insertBefore(insnNode, new FieldInsnNode(Opcodes.GETSTATIC, "Game/Renderer", "width", "I")); methodNode.instructions.insert(insnNode, new InsnNode(Opcodes.ISUB)); methodNode.instructions.insert(insnNode, new IntInsnNode(Opcodes.SIPUSH, 130)); methodNode.instructions.insert(insnNode, new InsnNode(Opcodes.IDIV)); } else if (call.operand == 137) { call.operand = 2; methodNode.instructions.insertBefore(insnNode, new FieldInsnNode(Opcodes.GETSTATIC, "Game/Renderer", "height", "I")); methodNode.instructions.insert(insnNode, new InsnNode(Opcodes.ISUB)); methodNode.instructions.insert(insnNode, new IntInsnNode(Opcodes.SIPUSH, 36)); methodNode.instructions.insert(insnNode, new InsnNode(Opcodes.IDIV)); } } } } else if (methodNode.name.equals("j") && methodNode.desc.equals("(I)V")) { Iterator<AbstractInsnNode> insnNodeList = methodNode.instructions.iterator(); while (insnNodeList.hasNext()) { AbstractInsnNode insnNode = insnNodeList.next(); // Center welcome box if (insnNode.getOpcode() == Opcodes.SIPUSH || insnNode.getOpcode() == Opcodes.BIPUSH) { IntInsnNode call = (IntInsnNode) insnNode; if (call.operand == 256) { call.operand = 2; methodNode.instructions.insertBefore(insnNode, new FieldInsnNode(Opcodes.GETSTATIC, "Game/Renderer", "width", "I")); methodNode.instructions.insert(insnNode, new InsnNode(Opcodes.IDIV)); } else if (call.operand == 167) { call.operand = 2; methodNode.instructions.insertBefore(insnNode, new FieldInsnNode(Opcodes.GETSTATIC, "Game/Renderer", "height", "I")); methodNode.instructions.insert(insnNode, new InsnNode(Opcodes.ISUB)); methodNode.instructions.insert(insnNode, new IntInsnNode(Opcodes.SIPUSH, 6)); methodNode.instructions.insert(insnNode, new InsnNode(Opcodes.IDIV)); } else if (call.operand == 56) { call.operand = 2; methodNode.instructions.insertBefore(insnNode, new FieldInsnNode(Opcodes.GETSTATIC, "Game/Renderer", "width", "I")); methodNode.instructions.insert(insnNode, new InsnNode(Opcodes.ISUB)); methodNode.instructions.insert(insnNode, new IntInsnNode(Opcodes.SIPUSH, 200)); methodNode.instructions.insert(insnNode, new InsnNode(Opcodes.IDIV)); } else if (call.operand == -87) { call.operand = 2; methodNode.instructions.insertBefore(insnNode, new FieldInsnNode(Opcodes.GETSTATIC, "Game/Renderer", "width", "I")); methodNode.instructions.insert(insnNode, new InsnNode(Opcodes.INEG)); methodNode.instructions.insert(insnNode, new InsnNode(Opcodes.ISUB)); methodNode.instructions.insert(insnNode, new IntInsnNode(Opcodes.SIPUSH, 169)); methodNode.instructions.insert(insnNode, new InsnNode(Opcodes.IDIV)); } else if (call.operand == 426) { call.operand = 2; methodNode.instructions.insertBefore(insnNode, new FieldInsnNode(Opcodes.GETSTATIC, "Game/Renderer", "width", "I")); methodNode.instructions.insert(insnNode, new InsnNode(Opcodes.IADD)); methodNode.instructions.insert(insnNode, new IntInsnNode(Opcodes.SIPUSH, 170)); methodNode.instructions.insert(insnNode, new InsnNode(Opcodes.IDIV)); } else if (call.operand == 106) { call.operand = 2; methodNode.instructions.insertBefore(insnNode, new FieldInsnNode(Opcodes.GETSTATIC, "Game/Renderer", "width", "I")); methodNode.instructions.insert(insnNode, new InsnNode(Opcodes.ISUB)); methodNode.instructions.insert(insnNode, new IntInsnNode(Opcodes.SIPUSH, 150)); methodNode.instructions.insert(insnNode, new InsnNode(Opcodes.IDIV)); } else if (call.operand == 406) { call.operand = 2; methodNode.instructions.insertBefore(insnNode, new FieldInsnNode(Opcodes.GETSTATIC, "Game/Renderer", "width", "I")); methodNode.instructions.insert(insnNode, new InsnNode(Opcodes.IADD)); methodNode.instructions.insert(insnNode, new IntInsnNode(Opcodes.SIPUSH, 150)); methodNode.instructions.insert(insnNode, new InsnNode(Opcodes.IDIV)); } } } } else if (methodNode.name.equals("k") && methodNode.desc.equals("(B)V")) { Iterator<AbstractInsnNode> insnNodeList = methodNode.instructions.iterator(); while (insnNodeList.hasNext()) { AbstractInsnNode insnNode = insnNodeList.next(); // Save settings from combat menu if (insnNode.getOpcode() == Opcodes.PUTFIELD) { FieldInsnNode field = (FieldInsnNode) insnNode; if (field.owner.equals("client") && field.name.equals("Fg")) { methodNode.instructions.insert(insnNode, new MethodInsnNode(Opcodes.INVOKESTATIC, "Client/Settings", "save", "()V", false)); methodNode.instructions.insert(insnNode, new FieldInsnNode(Opcodes.PUTSTATIC, "Client/Settings", "COMBAT_STYLE", "I")); methodNode.instructions.insert(insnNode, new FieldInsnNode(Opcodes.GETFIELD, "client", "Fg", "I")); methodNode.instructions.insert(insnNode, new VarInsnNode(Opcodes.ALOAD, 0)); } } } } else if (methodNode.name.equals("a") && methodNode.desc .equals("(ZLjava/lang/String;ILjava/lang/String;IILjava/lang/String;Ljava/lang/String;)V")) { AbstractInsnNode first = methodNode.instructions.getFirst(); methodNode.instructions.insertBefore(first, new VarInsnNode(Opcodes.ALOAD, 7)); methodNode.instructions.insertBefore(first, new VarInsnNode(Opcodes.ALOAD, 4)); methodNode.instructions.insertBefore(first, new VarInsnNode(Opcodes.ILOAD, 5)); methodNode.instructions.insertBefore(first, new MethodInsnNode(Opcodes.INVOKESTATIC, "Game/Client", "messageHook", "(Ljava/lang/String;Ljava/lang/String;I)V")); } } }
From source file:Client.JClassPatcher.java
License:Open Source License
private void patchRenderer(ClassNode node) { Logger.Info("Patching renderer (" + node.name + ".class)"); Iterator<MethodNode> methodNodeList = node.methods.iterator(); while (methodNodeList.hasNext()) { MethodNode methodNode = methodNodeList.next(); // Renderer present hook if (methodNode.desc.equals("(Ljava/awt/Graphics;III)V")) { AbstractInsnNode findNode = methodNode.instructions.getFirst(); FieldInsnNode imageNode = null; while (findNode.getOpcode() != Opcodes.POP) { findNode = findNode.getNext(); if (findNode == null) { Logger.Error("Unable to find present hook"); break; }/*from w w w.java 2s. c o m*/ } while (findNode.getOpcode() != Opcodes.INVOKESPECIAL) { if (findNode.getOpcode() == Opcodes.GETFIELD) imageNode = (FieldInsnNode) findNode; AbstractInsnNode prev = findNode.getPrevious(); methodNode.instructions.remove(findNode); findNode = prev; } methodNode.instructions.insert(findNode, new MethodInsnNode(Opcodes.INVOKESTATIC, "Game/Renderer", "present", "(Ljava/awt/Graphics;Ljava/awt/Image;)V", false)); methodNode.instructions.insert(findNode, new FieldInsnNode(Opcodes.GETFIELD, node.name, imageNode.name, imageNode.desc)); methodNode.instructions.insert(findNode, new VarInsnNode(Opcodes.ALOAD, 0)); methodNode.instructions.insert(findNode, new VarInsnNode(Opcodes.ALOAD, 1)); } else if (methodNode.name.equals("a") && methodNode.desc.equals("(IILjava/lang/String;IIBI)V")) { AbstractInsnNode start = methodNode.instructions.getFirst(); while (start != null) { if (start.getOpcode() == Opcodes.ALOAD && start.getNext().getOpcode() == Opcodes.ILOAD && start.getNext().getNext().getOpcode() == Opcodes.INVOKEVIRTUAL && start.getNext().getNext().getNext().getOpcode() == Opcodes.ISTORE) { break; } start = start.getNext(); } start = start.getPrevious(); LabelNode finishLabel = ((JumpInsnNode) start.getPrevious().getPrevious()).label; LabelNode failLabel = new LabelNode(); methodNode.instructions.insertBefore(start, new IntInsnNode(Opcodes.BIPUSH, 126)); methodNode.instructions.insertBefore(start, new VarInsnNode(Opcodes.ALOAD, 3)); methodNode.instructions.insertBefore(start, new VarInsnNode(Opcodes.ILOAD, 10)); methodNode.instructions.insertBefore(start, new MethodInsnNode(Opcodes.INVOKEVIRTUAL, "java/lang/String", "charAt", "(I)C")); methodNode.instructions.insertBefore(start, new JumpInsnNode(Opcodes.IF_ICMPNE, failLabel)); methodNode.instructions.insertBefore(start, new VarInsnNode(Opcodes.ILOAD, 10)); methodNode.instructions.insertBefore(start, new InsnNode(Opcodes.ICONST_5)); methodNode.instructions.insertBefore(start, new InsnNode(Opcodes.IADD)); methodNode.instructions.insertBefore(start, new VarInsnNode(Opcodes.ALOAD, 3)); methodNode.instructions.insertBefore(start, new MethodInsnNode(Opcodes.INVOKEVIRTUAL, "java/lang/String", "length", "()I")); methodNode.instructions.insertBefore(start, new JumpInsnNode(Opcodes.IF_ICMPGE, failLabel)); methodNode.instructions.insertBefore(start, new IntInsnNode(Opcodes.BIPUSH, 126)); methodNode.instructions.insertBefore(start, new VarInsnNode(Opcodes.ALOAD, 3)); methodNode.instructions.insertBefore(start, new VarInsnNode(Opcodes.ILOAD, 10)); methodNode.instructions.insertBefore(start, new InsnNode(Opcodes.ICONST_5)); methodNode.instructions.insertBefore(start, new InsnNode(Opcodes.IADD)); methodNode.instructions.insertBefore(start, new MethodInsnNode(Opcodes.INVOKEVIRTUAL, "java/lang/String", "charAt", "(I)C")); methodNode.instructions.insertBefore(start, new JumpInsnNode(Opcodes.IF_ICMPNE, failLabel)); methodNode.instructions.insertBefore(start, new VarInsnNode(Opcodes.ALOAD, 3)); methodNode.instructions.insertBefore(start, new VarInsnNode(Opcodes.ILOAD, 10)); methodNode.instructions.insertBefore(start, new InsnNode(Opcodes.ICONST_1)); methodNode.instructions.insertBefore(start, new InsnNode(Opcodes.IADD)); methodNode.instructions.insertBefore(start, new VarInsnNode(Opcodes.ILOAD, 10)); methodNode.instructions.insertBefore(start, new InsnNode(Opcodes.ICONST_5)); methodNode.instructions.insertBefore(start, new InsnNode(Opcodes.IADD)); methodNode.instructions.insertBefore(start, new MethodInsnNode(Opcodes.INVOKEVIRTUAL, "java/lang/String", "substring", "(II)Ljava/lang/String;")); methodNode.instructions.insertBefore(start, new MethodInsnNode(Opcodes.INVOKESTATIC, "java/lang/Integer", "parseInt", "(Ljava/lang/String;)I")); methodNode.instructions.insertBefore(start, new VarInsnNode(Opcodes.ISTORE, 4)); methodNode.instructions.insertBefore(start, new IincInsnNode(10, 5)); methodNode.instructions.insertBefore(start, new JumpInsnNode(Opcodes.GOTO, finishLabel)); methodNode.instructions.insertBefore(start, failLabel); } } }
From source file:Client.JClassPatcher.java
License:Open Source License
/** * TODO: Complete JavaDoc//from w ww .j av a 2 s .co m * * @param methodNode * @param owner The class of the variable to be hooked * @param var The variable to be hooked * @param desc * @param newClass The class the hooked variable will be stored in * @param newVar The variable name the hooked variable will be stored in * @param newDesc * @param canRead Specifies if the hooked variable should be readable * @param canWrite Specifies if the hooked variable should be writable */ private void hookClassVariable(MethodNode methodNode, String owner, String var, String desc, String newClass, String newVar, String newDesc, boolean canRead, boolean canWrite) { Iterator<AbstractInsnNode> insnNodeList = methodNode.instructions.iterator(); while (insnNodeList.hasNext()) { AbstractInsnNode insnNode = insnNodeList.next(); int opcode = insnNode.getOpcode(); if (opcode == Opcodes.GETFIELD || opcode == Opcodes.PUTFIELD) { FieldInsnNode field = (FieldInsnNode) insnNode; if (field.owner.equals(owner) && field.name.equals(var) && field.desc.equals(desc)) { if (opcode == Opcodes.GETFIELD && canWrite) { methodNode.instructions.insert(insnNode, new FieldInsnNode(Opcodes.GETSTATIC, newClass, newVar, newDesc)); methodNode.instructions.insert(insnNode, new InsnNode(Opcodes.POP)); } else if (opcode == Opcodes.PUTFIELD && canRead) { methodNode.instructions.insertBefore(insnNode, new InsnNode(Opcodes.DUP_X1)); methodNode.instructions.insert(insnNode, new FieldInsnNode(Opcodes.PUTSTATIC, newClass, newVar, newDesc)); } } } } }
From source file:com.alibaba.hotswap.processor.constructor.modifier.FieldHolderInitModifier.java
License:Open Source License
@Override public void visitCode() { super.visitCode(); // this.__$$hotswap_field_holder$$__ = new ConcurrentHashMap(); mv.visitVarInsn(Opcodes.ALOAD, 0);/*from w w w . j a v a2 s.c om*/ mv.visitFieldInsn(Opcodes.GETFIELD, className, HotswapConstants.FIELD_HOLDER, "Ljava/util/concurrent/ConcurrentHashMap;"); Label end = newLabel(); ifNonNull(end); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitTypeInsn(Opcodes.NEW, "java/util/concurrent/ConcurrentHashMap"); mv.visitInsn(Opcodes.DUP); mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/util/concurrent/ConcurrentHashMap", "<init>", "()V"); mv.visitFieldInsn(Opcodes.PUTFIELD, className, HotswapConstants.FIELD_HOLDER, "Ljava/util/concurrent/ConcurrentHashMap;"); mark(end); }
From source file:com.alibaba.hotswap.processor.field.access.FieldAccessModifier.java
License:Open Source License
@Override public void visitFieldInsn(int opcode, String owner, String name, String desc) { if (HotswapRuntime.getClassInitialized(className) && !name.equals(HotswapConstants.STATIC_FIELD_HOLDER) && !name.equals(HotswapConstants.FIELD_HOLDER)) { Queue<String> owners = new LinkedList<String>(); owners.offer(owner);//from www . jav a 2 s. com String tmpOwner = owners.poll(); while (tmpOwner != null) { if (HotswapRuntime.hasClassMeta(tmpOwner)) { // Try to reload owner. HotswapRuntime.try2Reload(tmpOwner); ClassMeta classMeta = HotswapRuntime.getClassMeta(tmpOwner); String fmKey = HotswapFieldUtil.getFieldKey(name, desc); FieldMeta fm = classMeta.getFieldMeta(fmKey); if (classMeta.isInterface) { if (fm != null && !fm.isDeleted(classMeta.loadedIndex) && (opcode == Opcodes.PUTSTATIC || opcode == Opcodes.GETSTATIC)) { super.visitFieldInsn(opcode, Type.getInternalName(classMeta.vClass), fm.name, fm.desc); return; } } if (fm != null && classMeta.primaryFieldKeyList.contains(fmKey) && !fm.isDeleted(classMeta.loadedIndex)) { break; } else if (fm != null && classMeta.primaryFieldKeyList.contains(fmKey) && fm.isDeleted(classMeta.loadedIndex)) { // If this accessed field is primary and deleted, it perhaps is a alias field fm = classMeta.getFieldMeta(HotswapFieldUtil .getFieldKey(HotswapConstants.PREFIX_FIELD_ALIAS + fm.name, fm.desc)); } if (fm != null && fm.isAdded() && !fm.isDeleted(classMeta.loadedIndex)) { if (opcode == Opcodes.PUTSTATIC) { // put static box(Type.getType(fm.desc)); mv.visitFieldInsn(Opcodes.GETSTATIC, tmpOwner, HotswapConstants.STATIC_FIELD_HOLDER, "Ljava/util/concurrent/ConcurrentHashMap;"); mv.visitLdcInsn(fm.name); mv.visitLdcInsn(fm.desc); mv.visitMethodInsn(Opcodes.INVOKESTATIC, Type.getInternalName(HotswapFieldUtil.class), "setFieldValue", "(Ljava/lang/Object;Ljava/util/concurrent/ConcurrentHashMap;Ljava/lang/String;Ljava/lang/String;)V"); return; } else if (opcode == Opcodes.GETSTATIC) { // get static mv.visitFieldInsn(Opcodes.GETSTATIC, tmpOwner, HotswapConstants.STATIC_FIELD_HOLDER, "Ljava/util/concurrent/ConcurrentHashMap;"); mv.visitLdcInsn(fm.name); mv.visitLdcInsn(fm.desc); mv.visitMethodInsn(Opcodes.INVOKESTATIC, Type.getInternalName(HotswapFieldUtil.class), "getFieldValue", "(Ljava/util/concurrent/ConcurrentHashMap;Ljava/lang/String;Ljava/lang/String;)Ljava/lang/Object;"); unbox(Type.getType(fm.desc)); return; } else if (opcode == Opcodes.PUTFIELD) { // put field // stack: obj fieldValue box(Type.getType(fm.desc)); mv.visitInsn(Opcodes.SWAP); mv.visitFieldInsn(Opcodes.GETFIELD, tmpOwner, HotswapConstants.FIELD_HOLDER, "Ljava/util/concurrent/ConcurrentHashMap;"); mv.visitLdcInsn(fm.name); mv.visitLdcInsn(fm.desc); mv.visitMethodInsn(Opcodes.INVOKESTATIC, Type.getInternalName(HotswapFieldUtil.class), "setFieldValue", "(Ljava/lang/Object;Ljava/util/concurrent/ConcurrentHashMap;Ljava/lang/String;Ljava/lang/String;)V"); return; } else if (opcode == Opcodes.GETFIELD) { // get field // stack: obj mv.visitFieldInsn(Opcodes.GETFIELD, tmpOwner, HotswapConstants.FIELD_HOLDER, "Ljava/util/concurrent/ConcurrentHashMap;"); mv.visitLdcInsn(fm.name); mv.visitLdcInsn(fm.desc); mv.visitMethodInsn(Opcodes.INVOKESTATIC, Type.getInternalName(HotswapFieldUtil.class), "getFieldValue", "(Ljava/util/concurrent/ConcurrentHashMap;Ljava/lang/String;Ljava/lang/String;)Ljava/lang/Object;"); Label notnull = newLabel(); Type type = Type.getType(fm.desc); mv.visitInsn(Opcodes.DUP); mv.visitJumpInsn(Opcodes.IFNONNULL, notnull); Label end = newLabel(); switch (type.getSort()) { case Type.BOOLEAN: mv.visitInsn(Opcodes.POP); mv.visitLdcInsn(new Boolean(false)); break; case Type.CHAR: mv.visitInsn(Opcodes.POP); mv.visitLdcInsn(new Character(' ')); break; case Type.BYTE: mv.visitInsn(Opcodes.POP); mv.visitLdcInsn(new Byte((byte) 0)); break; case Type.SHORT: mv.visitInsn(Opcodes.POP); mv.visitLdcInsn(new Short((short) 0)); break; case Type.INT: mv.visitInsn(Opcodes.POP); mv.visitLdcInsn(new Integer(0)); break; case Type.FLOAT: mv.visitInsn(Opcodes.POP); mv.visitLdcInsn(new Float(0)); break; case Type.LONG: mv.visitInsn(Opcodes.POP); mv.visitLdcInsn(new Long(0)); break; case Type.DOUBLE: mv.visitInsn(Opcodes.POP); mv.visitLdcInsn(new Double(0)); break; default: break; } mv.visitJumpInsn(Opcodes.GOTO, end); mark(notnull); unbox(type); mark(end); return; } } if (classMeta.clazz != null) { Class<?> superClass = classMeta.clazz.getSuperclass(); if (superClass != null) { owners.offer(HotswapUtil.getInternalClassName(superClass.getName())); } Class<?>[] superInterfaces = classMeta.clazz.getInterfaces(); if (superInterfaces != null) { for (Class<?> itf : superInterfaces) { owners.offer(HotswapUtil.getInternalClassName(itf.getName())); } } } } tmpOwner = owners.poll(); } } super.visitFieldInsn(opcode, owner, name, desc); }
From source file:com.alibaba.hotswap.processor.jdk.reflect.modifier.ConstructorNewInstanceModifier.java
License:Open Source License
@Override public void visitCode() { super.visitCode(); Label old = new Label(); mv.visitVarInsn(Opcodes.ALOAD, 0);/* w w w .ja va 2 s .co m*/ mv.visitFieldInsn(Opcodes.GETFIELD, "java/lang/reflect/Constructor", "parameterTypes", "[Ljava/lang/Class;"); mv.visitMethodInsn(Opcodes.INVOKESTATIC, Type.getInternalName(MethodReflectHelper.class), "isUniformConstructorArgsType", "([Ljava/lang/Class;)Z"); ifZCmp(NE, old); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitFieldInsn(Opcodes.GETFIELD, "java/lang/reflect/Constructor", "clazz", "Ljava/lang/Class;"); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Class", "getName", "()Ljava/lang/String;"); mv.visitMethodInsn(Opcodes.INVOKESTATIC, Type.getInternalName(HotswapRuntime.class), "hasClassMeta", "(Ljava/lang/String;)Z"); mv.visitJumpInsn(Opcodes.IFEQ, old); // check it as a primary constructor mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitFieldInsn(Opcodes.GETFIELD, "java/lang/reflect/Constructor", "clazz", "Ljava/lang/Class;"); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Class", "getName", "()Ljava/lang/String;"); mv.visitMethodInsn(Opcodes.INVOKESTATIC, Type.getInternalName(HotswapRuntime.class), "getClassMeta", "(Ljava/lang/String;)Lcom/alibaba/hotswap/meta/ClassMeta;"); mv.visitLdcInsn(HotswapConstants.INIT); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitMethodInsn(Opcodes.INVOKESTATIC, Type.getInternalName(Type.class), "getConstructorDescriptor", "(Ljava/lang/reflect/Constructor;)Ljava/lang/String;"); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Type.getInternalName(ClassMeta.class), "isPrimaryInitMethod", "(Ljava/lang/String;Ljava/lang/String;)Z"); mv.visitJumpInsn(Opcodes.IFNE, old); // get uniform constructor mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitFieldInsn(Opcodes.GETFIELD, "java/lang/reflect/Constructor", "clazz", "Ljava/lang/Class;"); mv.visitMethodInsn(Opcodes.INVOKESTATIC, Type.getInternalName(HotswapMethodUtil.class), "getConstructorParamTypes", "()[Ljava/lang/Class;"); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Class", "getConstructor", "([Ljava/lang/Class;)Ljava/lang/reflect/Constructor;"); // index and objs mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitFieldInsn(Opcodes.GETFIELD, "java/lang/reflect/Constructor", "clazz", "Ljava/lang/Class;"); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Class", "getName", "()Ljava/lang/String;"); mv.visitLdcInsn(HotswapConstants.INIT); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitMethodInsn(Opcodes.INVOKESTATIC, Type.getInternalName(Type.class), "getConstructorDescriptor", "(Ljava/lang/reflect/Constructor;)Ljava/lang/String;"); loadArgs(); mv.visitMethodInsn(Opcodes.INVOKESTATIC, Type.getInternalName(HotswapMethodUtil.class), "getMethodParams", "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;[Ljava/lang/Object;)[Ljava/lang/Object;"); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/reflect/Constructor", "newInstance", "([Ljava/lang/Object;)Ljava/lang/Object;"); mv.visitInsn(Opcodes.ARETURN); mv.visitLabel(old); }
From source file:com.android.ide.eclipse.apt.internal.analysis.InnerClassAnalyzer.java
License:Apache License
/** * Checks if a method of an inner class accesses the private content of an outer class (field or method) * @param methodNode/* w ww . j a v a2s.c o m*/ * @param method * @return True if the outer access is confirmed, false otherwise. */ private boolean confirmParentClassAccess(final MethodNode methodNode, final MethodInsnNode method) { final String methodNodeName = methodNode.name; AbstractInsnNode prev = method.getPrevious(); boolean result = false; while (!result) { if (methodNodeName.startsWith("<init>")) { if (prev.getOpcode() == Opcodes.ALOAD) { final VarInsnNode varInsn = (VarInsnNode) prev; result = varInsn.var == 1; } } else { if (prev.getOpcode() == Opcodes.GETFIELD) { final FieldInsnNode getField = (FieldInsnNode) prev; final String field = getField.owner + getField.name; final String testField = mInnerClass.name + "this$0"; result = field.equals(testField); } } if (prev.getType() == AbstractInsnNode.LINE) { break; } else { prev = prev.getPrevious(); } } return result; }
From source file:com.android.ide.eclipse.apt.internal.analysis.InternalGetSetAnalyzer.java
License:Apache License
/** * Checks if a method is a getter//ww w . j ava 2 s. co m * @param methodTest The method to test * @return True if the method is a getter, false otherwise */ private boolean isGetter(final MethodNode methodTest) { boolean getter = false; final String desc = methodTest.desc; final Type[] arguments = Type.getArgumentTypes(desc); final Type returnType = Type.getReturnType(desc); if (arguments.length == 0 && returnType.getSort() != Type.VOID) { final InsnList instructions = methodTest.instructions; //three next to skip label and line number instructions final AbstractInsnNode first = instructions.getFirst().getNext().getNext(); final int returnOp = returnType.getOpcode(Opcodes.IRETURN); final int firstOp = first.getOpcode(); //check for static getter if ((Opcodes.ACC_STATIC & methodTest.access) == 0) { if (firstOp == Opcodes.ALOAD) { final AbstractInsnNode second = first.getNext(); if (second.getOpcode() == Opcodes.GETFIELD) { final AbstractInsnNode third = second.getNext(); if (third.getOpcode() == returnOp) { getter = true; } } } } else { if (firstOp == Opcodes.GETSTATIC) { final AbstractInsnNode second = first.getNext(); if (second.getOpcode() == returnOp) { getter = true; } } } } return getter; }