List of usage examples for org.objectweb.asm.tree ClassNode ClassNode
public ClassNode()
From source file:bench.anno.Test.java
License:BSD License
/** * @param args/* w ww . j a v a2s. c om*/ */ public static void main(final String[] args) throws Exception { // ASM Tree API final ClassNode klazNode = new ClassNode(); // Read the class byte code from stream // final ClassReader klazReader = new ClassReader( // ClassLoader // .getSystemResourceAsStream("bench/anno/Source.class")); final ClassReader klazReader = new ClassReader(Source.class.getName()); klazReader.accept(klazNode, 0); System.out.println("Class Name : " + klazNode.name); System.out.println("Source File : " + klazNode.sourceFile); // Annotations with RetentionPolicy.CLASS // @Retention(RetentionPolicy.CLASS) System.out.println("\n==Invisible Annotations=="); printAnnotation(klazNode.invisibleAnnotations); // Annotations with RetentionPolicy.RUNTIME // @Retention(RetentionPolicy.RUNTIME) System.out.println("\n==Visible Annotations=="); printAnnotation(klazNode.visibleAnnotations); System.out.println("\n obj : " + Object.class); System.out.println("\n name : " + klazNode.name); System.out.println("\n super name : " + klazNode.superName); }
From source file:blockphysics.asm.BPTransformer.java
License:Open Source License
private byte[] transformTileEntityPiston(byte[] bytes) { /*try//from w w w . j a va 2 s .com { FileOutputStream fos = new FileOutputStream("d:/TileEntityPiston.orig.class"); fos.write(bytes); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ System.out.print("[BlockPhysics] Patching TileEntityPiston.class ........"); boolean ok = false, ok2 = false, ok3 = false, ok4 = false, ok5 = false; ClassNode classNode = new ClassNode(); ClassReader classReader = new ClassReader(bytes); classReader.accept(classNode, 0); MethodNode m; Iterator<MethodNode> methods = classNode.methods.iterator(); while (methods.hasNext()) { m = methods.next(); if (m.name.equals("<init>") && m.desc.equals("(IIIZZ)V")) { for (int index = m.instructions.size() - 1; index >= 0; index--) { if (m.instructions.get(index).getOpcode() == RETURN) { InsnList toInject = new InsnList(); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new InsnNode(ACONST_NULL)); toInject.add(new FieldInsnNode(PUTFIELD, "ast", "movingBlockTileEntityData", "Lbx;")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new InsnNode(ICONST_0)); toInject.add(new FieldInsnNode(PUTFIELD, "ast", "bpmeta", "I")); m.instructions.insertBefore(m.instructions.get(index), toInject); ok = true; break; } } } else if (m.name.equals("f") && m.desc.equals("()V")) { for (int index = m.instructions.size() - 1; index >= 0; index--) { if (m.instructions.get(index).getOpcode() == INVOKEVIRTUAL && m.instructions.get(index).getType() == AbstractInsnNode.METHOD_INSN && ((MethodInsnNode) m.instructions.get(index)).owner.equals("abv") && ((MethodInsnNode) m.instructions.get(index)).name.equals("g") && ((MethodInsnNode) m.instructions.get(index)).desc.equals("(IIII)V")) { InsnList toInject = new InsnList(); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "k", "Labv;")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "l", "I")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "m", "I")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "n", "I")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "bpmeta", "I")); toInject.add(new MethodInsnNode(INVOKESTATIC, "blockphysics/BlockPhysics", "setBlockBPdata", "(Labv;IIII)Z")); toInject.add(new InsnNode(POP)); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "movingBlockTileEntityData", "Lbx;")); LabelNode l1 = new LabelNode(); toInject.add(new JumpInsnNode(IFNULL, l1)); toInject.add(new FieldInsnNode(GETSTATIC, "aqw", "s", "[Laqw;")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "a", "I")); toInject.add(new InsnNode(AALOAD)); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "k", "Labv;")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "b", "I")); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "aqw", "createTileEntity", "(Labv;I)Lasm;")); toInject.add(new VarInsnNode(ASTORE, 1)); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "movingBlockTileEntityData", "Lbx;")); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "asm", "a", "(Lbx;)V")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "k", "Labv;")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "l", "I")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "m", "I")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "n", "I")); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "abv", "a", "(IIILasm;)V")); toInject.add(l1); m.instructions.insert(m.instructions.get(index), toInject); ok2 = true; break; } } } else if (m.name.equals("a") && m.desc.equals("(Lbx;)V")) { for (int index = m.instructions.size() - 1; index >= 0; index--) { if (m.instructions.get(index).getOpcode() == RETURN) { InsnList toInject = new InsnList(); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add(new LdcInsnNode("BPData")); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "bx", "b", "(Ljava/lang/String;)Z")); LabelNode l1 = new LabelNode(); toInject.add(new JumpInsnNode(IFEQ, l1)); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add(new LdcInsnNode("BPData")); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "bx", "c", "(Ljava/lang/String;)B")); toInject.add(new FieldInsnNode(PUTFIELD, "ast", "bpmeta", "I")); toInject.add(l1); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add(new LdcInsnNode("TileEntityData")); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "bx", "b", "(Ljava/lang/String;)Z")); LabelNode l0 = new LabelNode(); toInject.add(new JumpInsnNode(IFEQ, l0)); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add(new LdcInsnNode("TileEntityData")); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "bx", "l", "(Ljava/lang/String;)Lbx;")); toInject.add(new FieldInsnNode(PUTFIELD, "ast", "movingBlockTileEntityData", "Lbx;")); toInject.add(l0); m.instructions.insertBefore(m.instructions.get(index), toInject); ok3 = true; break; } } } else if (m.name.equals("b") && m.desc.equals("(Lbx;)V")) { for (int index = m.instructions.size() - 1; index >= 0; index--) { if (m.instructions.get(index).getOpcode() == RETURN) { InsnList toInject = new InsnList(); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add(new LdcInsnNode("BPData")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "bpmeta", "I")); toInject.add(new InsnNode(I2B)); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "bx", "a", "(Ljava/lang/String;B)V")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "movingBlockTileEntityData", "Lbx;")); LabelNode l0 = new LabelNode(); toInject.add(new JumpInsnNode(IFNULL, l0)); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add(new LdcInsnNode("TileEntityData")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "movingBlockTileEntityData", "Lbx;")); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "bx", "a", "(Ljava/lang/String;Lbx;)V")); toInject.add(l0); m.instructions.insertBefore(m.instructions.get(index), toInject); ok4 = true; break; } } } else if (m.name.equals("h") && m.desc.equals("()V")) { for (int index = m.instructions.size() - 1; index >= 0; index--) { if (m.instructions.get(index).getOpcode() == INVOKEVIRTUAL && m.instructions.get(index).getType() == AbstractInsnNode.METHOD_INSN && ((MethodInsnNode) m.instructions.get(index)).owner.equals("abv") && ((MethodInsnNode) m.instructions.get(index)).name.equals("g") && ((MethodInsnNode) m.instructions.get(index)).desc.equals("(IIII)V")) { InsnList toInject = new InsnList(); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "k", "Labv;")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "l", "I")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "m", "I")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "n", "I")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "bpmeta", "I")); toInject.add(new MethodInsnNode(INVOKESTATIC, "blockphysics/BlockPhysics", "setBlockBPdata", "(Labv;IIII)Z")); toInject.add(new InsnNode(POP)); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "movingBlockTileEntityData", "Lbx;")); LabelNode l0 = new LabelNode(); toInject.add(new JumpInsnNode(IFNULL, l0)); toInject.add(new FieldInsnNode(GETSTATIC, "aqw", "s", "[Laqw;")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "a", "I")); toInject.add(new InsnNode(AALOAD)); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "k", "Labv;")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "b", "I")); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "aqw", "createTileEntity", "(Labv;I)Lasm;")); toInject.add(new VarInsnNode(ASTORE, 1)); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "movingBlockTileEntityData", "Lbx;")); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "asm", "a", "(Lbx;)V")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "k", "Labv;")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "l", "I")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "m", "I")); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "ast", "n", "I")); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "abv", "a", "(IIILasm;)V")); toInject.add(l0); m.instructions.insert(m.instructions.get(index), toInject); ok5 = true; break; } } } } ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS); classNode.accept(cw); if (ok && ok2 && ok3 && ok4 && ok5) System.out.println("OK"); else System.out.println("Failed." + ok + ok2 + ok3 + ok4 + ok5); FieldVisitor fv; fv = cw.visitField(ACC_PUBLIC, "movingBlockTileEntityData", "Lbx;", null, null); fv.visitEnd(); fv = cw.visitField(ACC_PUBLIC, "bpmeta", "I", null, null); fv.visitEnd(); cw.visitEnd(); /*try { FileOutputStream fos = new FileOutputStream("d:/TileEntityPiston.mod.class"); fos.write(cw.toByteArray()); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ return cw.toByteArray(); }
From source file:blockphysics.asm.BPTransformer.java
License:Open Source License
private byte[] transformBlockFurnace(byte[] bytes) { /*try// w w w . j a va 2s . c o m { FileOutputStream fos = new FileOutputStream("d:/BlockFurnace.orig.class"); fos.write(bytes); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ System.out.print("[BlockPhysics] Patching BlockFurnace.class ............"); boolean ok = false; ClassNode classNode = new ClassNode(); ClassReader classReader = new ClassReader(bytes); classReader.accept(classNode, 0); MethodNode m; Iterator<MethodNode> methods = classNode.methods.iterator(); while (methods.hasNext()) { m = methods.next(); if (m.name.equals("a") && m.desc.equals("(Labv;III)V")) { for (int index = 0; index < m.instructions.size(); index++) { if (m.instructions.get(index).getOpcode() == INVOKESPECIAL && m.instructions.get(index).getType() == AbstractInsnNode.METHOD_INSN && ((MethodInsnNode) m.instructions.get(index)).owner.equals("aoh") && ((MethodInsnNode) m.instructions.get(index)).name.equals("k") && ((MethodInsnNode) m.instructions.get(index)).desc.equals("(Labv;III)V")) { index = index - 5; for (int i = 0; i < 6; i++) m.instructions.remove(m.instructions.get(index)); ok = true; break; } } } } ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS); classNode.accept(cw); if (ok) System.out.println("OK"); else System.out.println("Failed." + ok); /*try { FileOutputStream fos = new FileOutputStream("d:/BlockFurnace.mod.class"); fos.write(cw.toByteArray()); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ return cw.toByteArray(); }
From source file:blockphysics.asm.BPTransformer.java
License:Open Source License
private byte[] transformBlockDispenser(byte[] bytes) { /*try//w w w . j a v a2 s .c o m { FileOutputStream fos = new FileOutputStream("d:/BlockDispenser.orig.class"); fos.write(bytes); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ System.out.print("[BlockPhysics] Patching BlockDispenser.class .........."); boolean ok = false; ClassNode classNode = new ClassNode(); ClassReader classReader = new ClassReader(bytes); classReader.accept(classNode, 0); MethodNode m; Iterator<MethodNode> methods = classNode.methods.iterator(); while (methods.hasNext()) { m = methods.next(); if (m.name.equals("a") && m.desc.equals("(Labv;III)V")) { for (int index = 0; index < m.instructions.size(); index++) { if (m.instructions.get(index).getOpcode() == INVOKESPECIAL && m.instructions.get(index).getType() == AbstractInsnNode.METHOD_INSN && ((MethodInsnNode) m.instructions.get(index)).owner.equals("anv") && ((MethodInsnNode) m.instructions.get(index)).name.equals("k") && ((MethodInsnNode) m.instructions.get(index)).desc.equals("(Labv;III)V")) { index = index - 5; for (int i = 0; i < 6; i++) m.instructions.remove(m.instructions.get(index)); ok = true; break; } } } } ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS); classNode.accept(cw); if (ok) System.out.println("OK"); else System.out.println("Failed." + ok); /*try { FileOutputStream fos = new FileOutputStream("d:/BlockDispenser.mod.class"); fos.write(cw.toByteArray()); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ return cw.toByteArray(); }
From source file:blockphysics.asm.BPTransformer.java
License:Open Source License
private byte[] transformBlockChest(byte[] bytes) { /*try/*w w w.j a v a 2 s . c o m*/ { FileOutputStream fos = new FileOutputStream("d:/BlockChest.orig.class"); fos.write(bytes); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ System.out.print("[BlockPhysics] Patching BlockChest.class .............."); boolean ok = false; ClassNode classNode = new ClassNode(); ClassReader classReader = new ClassReader(bytes); classReader.accept(classNode, 0); MethodNode m; Iterator<MethodNode> methods = classNode.methods.iterator(); while (methods.hasNext()) { m = methods.next(); if (m.name.equals("a") && m.desc.equals("(Labv;III)V")) { for (int index = 0; index < m.instructions.size(); index++) { if (m.instructions.get(index).getOpcode() == INVOKEVIRTUAL && m.instructions.get(index).getType() == AbstractInsnNode.METHOD_INSN && ((MethodInsnNode) m.instructions.get(index)).owner.equals("anh") && ((MethodInsnNode) m.instructions.get(index)).name.equals("f_") && ((MethodInsnNode) m.instructions.get(index)).desc.equals("(Labv;III)V")) { index = index - 5; for (int i = 0; i < 6; i++) m.instructions.remove(m.instructions.get(index)); ok = true; break; } } } } ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS); classNode.accept(cw); if (ok) System.out.println("OK"); else System.out.println("Failed." + ok); /*try { FileOutputStream fos = new FileOutputStream("d:/BlockChest.mod.class"); fos.write(cw.toByteArray()); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ return cw.toByteArray(); }
From source file:blockphysics.asm.BPTransformer.java
License:Open Source License
private byte[] transformAnvilChunkLoader(byte[] bytes) { /*try//from w w w . j a va 2 s. c o m { FileOutputStream fos = new FileOutputStream("d:/AnvilChunkLoader.orig.class"); fos.write(bytes); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ System.out.print("[BlockPhysics] Patching AnvilChunkLoader.class ........"); boolean ok = false, ok2 = false, ok3 = false, ok4 = false, ok6 = false, ok7 = false; ClassNode classNode = new ClassNode(); ClassReader classReader = new ClassReader(bytes); classReader.accept(classNode, 0); MethodNode m; Iterator<MethodNode> methods = classNode.methods.iterator(); while (methods.hasNext()) { m = methods.next(); if (m.name.equals("a") && m.desc.equals("(Ladq;Labv;Lbx;)V")) { int var1 = 9; for (int index = 0; index < m.instructions.size(); index++) { if (ok3) break; if (m.instructions.get(index).getOpcode() == INVOKESPECIAL && m.instructions.get(index).getType() == AbstractInsnNode.METHOD_INSN && ((MethodInsnNode) m.instructions.get(index)).owner.equals("bx") && ((MethodInsnNode) m.instructions.get(index)).name.equals("<init>") && ((MethodInsnNode) m.instructions.get(index)).desc.equals("()V")) { for (int index2 = index; index2 < m.instructions.size(); index2++) { if (m.instructions.get(index2).getOpcode() == ASTORE) { var1 = ((VarInsnNode) m.instructions.get(index2)).var; ok3 = true; break; } } } } int var2 = 11; for (int index = 0; index < m.instructions.size(); index++) { if (ok4) break; if (m.instructions.get(index).getType() == AbstractInsnNode.LDC_INSN && ((LdcInsnNode) m.instructions.get(index)).cst.equals("Data")) { for (int index2 = index; index2 < m.instructions.size(); index2++) { if (m.instructions.get(index2).getOpcode() == ALOAD) { var2 = ((VarInsnNode) m.instructions.get(index2)).var; ok4 = true; break; } } } } for (int index = 0; index < m.instructions.size(); index++) { if (m.instructions.get(index).getOpcode() == INVOKEVIRTUAL && m.instructions.get(index).getType() == AbstractInsnNode.METHOD_INSN && ((MethodInsnNode) m.instructions.get(index)).owner.equals("cf") && ((MethodInsnNode) m.instructions.get(index)).name.equals("a") && ((MethodInsnNode) m.instructions.get(index)).desc.equals("(Lck;)V")) { InsnList toInject = new InsnList(); toInject.add(new VarInsnNode(ALOAD, var1)); toInject.add(new LdcInsnNode("BPData")); toInject.add(new VarInsnNode(ALOAD, var2)); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "adr", "getBPdataArray", "()[B")); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "bx", "a", "(Ljava/lang/String;[B)V")); m.instructions.insertBefore(m.instructions.get(index - 2), toInject); ok = true; break; } } } else if (m.name.equals("a") && m.desc.equals("(Labv;Lbx;)Ladq;")) { int var1 = 11; for (int index = 0; index < m.instructions.size(); index++) { if (ok6) break; if (m.instructions.get(index).getOpcode() == INVOKEVIRTUAL && m.instructions.get(index).getType() == AbstractInsnNode.METHOD_INSN && ((MethodInsnNode) m.instructions.get(index)).owner.equals("cf") && ((MethodInsnNode) m.instructions.get(index)).name.equals("b") && ((MethodInsnNode) m.instructions.get(index)).desc.equals("(I)Lck;")) { for (int index2 = index; index2 < m.instructions.size(); index2++) { if (m.instructions.get(index2).getOpcode() == ASTORE) { var1 = ((VarInsnNode) m.instructions.get(index2)).var; ok6 = true; break; } } } } int var2 = 13; for (int index = 0; index < m.instructions.size(); index++) { if (ok7) break; if (m.instructions.get(index).getOpcode() == INVOKESPECIAL && m.instructions.get(index).getType() == AbstractInsnNode.METHOD_INSN && ((MethodInsnNode) m.instructions.get(index)).owner.equals("adr") && ((MethodInsnNode) m.instructions.get(index)).name.equals("<init>") && ((MethodInsnNode) m.instructions.get(index)).desc.equals("(IZ)V")) { for (int index2 = index; index2 < m.instructions.size(); index2++) { if (m.instructions.get(index2).getOpcode() == ASTORE) { var2 = ((VarInsnNode) m.instructions.get(index2)).var; ok7 = true; break; } } } } for (int index = 0; index < m.instructions.size(); index++) { if (m.instructions.get(index).getOpcode() == INVOKEVIRTUAL && m.instructions.get(index).getType() == AbstractInsnNode.METHOD_INSN && ((MethodInsnNode) m.instructions.get(index)).owner.equals("adr") && ((MethodInsnNode) m.instructions.get(index)).name.equals("e") && ((MethodInsnNode) m.instructions.get(index)).desc.equals("()V")) { InsnList toInject = new InsnList(); toInject.add(new VarInsnNode(ALOAD, var1)); toInject.add(new LdcInsnNode("BPData")); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "bx", "b", "(Ljava/lang/String;)Z")); LabelNode l6 = new LabelNode(); toInject.add(new JumpInsnNode(IFEQ, l6)); toInject.add(new VarInsnNode(ALOAD, var2)); toInject.add(new VarInsnNode(ALOAD, var1)); toInject.add(new LdcInsnNode("BPData")); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "bx", "j", "(Ljava/lang/String;)[B")); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "adr", "setBPdataArray", "([B)V")); LabelNode l7 = new LabelNode(); toInject.add(new JumpInsnNode(GOTO, l7)); toInject.add(l6); toInject.add(new FrameNode(Opcodes.F_SAME, 0, null, 0, null)); toInject.add(new VarInsnNode(ALOAD, var2)); toInject.add(new IntInsnNode(SIPUSH, 4096)); toInject.add(new IntInsnNode(NEWARRAY, T_BYTE)); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "adr", "setBPdataArray", "([B)V")); toInject.add(l7); m.instructions.insertBefore(m.instructions.get(index - 1), toInject); ok2 = true; break; } } } } ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS); classNode.accept(cw); if (ok && ok2 && ok3 && ok4 && ok6 && ok7) System.out.println("OK"); else System.out.println("Failed." + ok + ok2 + ok3 + ok4 + ok6 + ok7); /*try { FileOutputStream fos = new FileOutputStream("d:/AnvilChunkLoader.mod.class"); fos.write(cw.toByteArray()); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ return cw.toByteArray(); }
From source file:blockphysics.asm.BPTransformer.java
License:Open Source License
private byte[] transformExtendedBlockStorage(byte[] bytes) { /*try/*w ww .j a v a 2s . c o m*/ { FileOutputStream fos = new FileOutputStream("d:/ExtendedBlockStorage.orig.class"); fos.write(bytes); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ System.out.print("[BlockPhysics] Patching ExtendedBlockStorage.class ...."); boolean ok = false; ClassNode classNode = new ClassNode(); ClassReader classReader = new ClassReader(bytes); classReader.accept(classNode, 0); MethodNode m; Iterator<MethodNode> methods = classNode.methods.iterator(); while (methods.hasNext()) { m = methods.next(); if (m.name.equals("<init>") && m.desc.equals("(IZ)V")) { for (int index = m.instructions.size() - 1; index >= 0; index--) { if (m.instructions.get(index).getOpcode() == RETURN) { InsnList toInject = new InsnList(); //toInject.add(new FrameNode(Opcodes.F_FULL, 3, new Object[] {"abx", Opcodes.INTEGER, Opcodes.INTEGER}, 0, new Object[] {})); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new IntInsnNode(SIPUSH, 4096)); toInject.add(new IntInsnNode(NEWARRAY, T_BYTE)); toInject.add(new FieldInsnNode(PUTFIELD, "adr", "blockBPdataArray", "[B")); m.instructions.insertBefore(m.instructions.get(index), toInject); ok = true; break; } } } } ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS); classNode.accept(cw); MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "getBlockBPdata", "(III)I", null, null); mv.visitCode(); mv.visitVarInsn(ALOAD, 0); mv.visitFieldInsn(GETFIELD, "adr", "blockBPdataArray", "[B"); mv.visitVarInsn(ILOAD, 2); mv.visitIntInsn(SIPUSH, 256); mv.visitInsn(IMUL); mv.visitVarInsn(ILOAD, 1); mv.visitIntInsn(BIPUSH, 16); mv.visitInsn(IMUL); mv.visitInsn(IADD); mv.visitVarInsn(ILOAD, 3); mv.visitInsn(IADD); mv.visitInsn(BALOAD); mv.visitInsn(IRETURN); mv.visitMaxs(4, 4); mv.visitEnd(); mv = cw.visitMethod(ACC_PUBLIC, "setBlockBPdata", "(IIII)V", null, null); mv.visitCode(); mv.visitVarInsn(ALOAD, 0); mv.visitFieldInsn(GETFIELD, "adr", "blockBPdataArray", "[B"); mv.visitVarInsn(ILOAD, 2); mv.visitIntInsn(SIPUSH, 256); mv.visitInsn(IMUL); mv.visitVarInsn(ILOAD, 1); mv.visitIntInsn(BIPUSH, 16); mv.visitInsn(IMUL); mv.visitInsn(IADD); mv.visitVarInsn(ILOAD, 3); mv.visitInsn(IADD); mv.visitVarInsn(ILOAD, 4); mv.visitInsn(I2B); mv.visitInsn(BASTORE); mv.visitInsn(RETURN); mv.visitMaxs(4, 5); mv.visitEnd(); mv = cw.visitMethod(ACC_PUBLIC, "getBPdataArray", "()[B", null, null); mv.visitCode(); mv.visitVarInsn(ALOAD, 0); mv.visitFieldInsn(GETFIELD, "adr", "blockBPdataArray", "[B"); mv.visitInsn(ARETURN); mv.visitMaxs(1, 1); mv.visitEnd(); mv = cw.visitMethod(ACC_PUBLIC, "setBPdataArray", "([B)V", null, null); mv.visitCode(); mv.visitVarInsn(ALOAD, 0); mv.visitVarInsn(ALOAD, 1); mv.visitFieldInsn(PUTFIELD, "adr", "blockBPdataArray", "[B"); mv.visitInsn(RETURN); mv.visitMaxs(2, 2); mv.visitEnd(); FieldVisitor fv; fv = cw.visitField(ACC_PRIVATE, "blockBPdataArray", "[B", null, null); fv.visitEnd(); cw.visitEnd(); if (ok) System.out.println("OK"); else System.out.println("Failed." + ok); /*try { FileOutputStream fos = new FileOutputStream("d:/ExtendedBlockStorage.mod.class"); fos.write(cw.toByteArray()); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ return cw.toByteArray(); }
From source file:blockphysics.asm.BPTransformer.java
License:Open Source License
private byte[] transformChunk(byte[] bytes) { /*try/*from w w w.j av a 2 s . com*/ { FileOutputStream fos = new FileOutputStream("d:/Chunk.orig.class"); fos.write(bytes); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ System.out.print("[BlockPhysics] Patching Chunk.class ..................."); ClassNode classNode = new ClassNode(); ClassReader classReader = new ClassReader(bytes); classReader.accept(classNode, 0); ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS); classNode.accept(cw); MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "getBlockBPdata", "(III)I", null, null); mv.visitCode(); mv.visitVarInsn(ILOAD, 2); mv.visitInsn(ICONST_4); mv.visitInsn(ISHR); mv.visitVarInsn(ALOAD, 0); mv.visitFieldInsn(GETFIELD, "adq", "r", "[Ladr;"); mv.visitInsn(ARRAYLENGTH); Label l0 = new Label(); mv.visitJumpInsn(IF_ICMPLT, l0); mv.visitInsn(ICONST_0); mv.visitInsn(IRETURN); mv.visitLabel(l0); mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null); mv.visitVarInsn(ALOAD, 0); mv.visitFieldInsn(GETFIELD, "adq", "r", "[Ladr;"); mv.visitVarInsn(ILOAD, 2); mv.visitInsn(ICONST_4); mv.visitInsn(ISHR); mv.visitInsn(AALOAD); mv.visitVarInsn(ASTORE, 4); mv.visitVarInsn(ALOAD, 4); Label l1 = new Label(); mv.visitJumpInsn(IFNULL, l1); mv.visitVarInsn(ALOAD, 4); mv.visitVarInsn(ILOAD, 1); mv.visitVarInsn(ILOAD, 2); mv.visitIntInsn(BIPUSH, 15); mv.visitInsn(IAND); mv.visitVarInsn(ILOAD, 3); mv.visitMethodInsn(INVOKEVIRTUAL, "adr", "getBlockBPdata", "(III)I"); Label l2 = new Label(); mv.visitJumpInsn(GOTO, l2); mv.visitLabel(l1); mv.visitFrame(Opcodes.F_APPEND, 1, new Object[] { "adr" }, 0, null); mv.visitInsn(ICONST_0); mv.visitLabel(l2); mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { Opcodes.INTEGER }); mv.visitInsn(IRETURN); mv.visitMaxs(4, 5); mv.visitEnd(); mv = cw.visitMethod(ACC_PUBLIC, "setBlockBPdata", "(IIII)Z", null, null); mv.visitCode(); mv.visitVarInsn(ALOAD, 0); mv.visitFieldInsn(GETFIELD, "adq", "r", "[Ladr;"); mv.visitVarInsn(ILOAD, 2); mv.visitInsn(ICONST_4); mv.visitInsn(ISHR); mv.visitInsn(AALOAD); mv.visitVarInsn(ASTORE, 5); mv.visitVarInsn(ALOAD, 5); Label lab0 = new Label(); mv.visitJumpInsn(IFNONNULL, lab0); mv.visitInsn(ICONST_0); mv.visitInsn(IRETURN); mv.visitLabel(lab0); mv.visitFrame(Opcodes.F_APPEND, 1, new Object[] { "adr" }, 0, null); mv.visitVarInsn(ALOAD, 5); mv.visitVarInsn(ILOAD, 1); mv.visitVarInsn(ILOAD, 2); mv.visitIntInsn(BIPUSH, 15); mv.visitInsn(IAND); mv.visitVarInsn(ILOAD, 3); mv.visitMethodInsn(INVOKEVIRTUAL, "adr", "getBlockBPdata", "(III)I"); mv.visitVarInsn(ISTORE, 6); mv.visitVarInsn(ILOAD, 6); mv.visitVarInsn(ILOAD, 4); Label lab1 = new Label(); mv.visitJumpInsn(IF_ICMPNE, lab1); mv.visitInsn(ICONST_0); mv.visitInsn(IRETURN); mv.visitLabel(lab1); mv.visitFrame(Opcodes.F_APPEND, 1, new Object[] { Opcodes.INTEGER }, 0, null); mv.visitVarInsn(ALOAD, 0); mv.visitInsn(ICONST_1); mv.visitFieldInsn(PUTFIELD, "adq", "l", "Z"); mv.visitVarInsn(ALOAD, 5); mv.visitVarInsn(ILOAD, 1); mv.visitVarInsn(ILOAD, 2); mv.visitIntInsn(BIPUSH, 15); mv.visitInsn(IAND); mv.visitVarInsn(ILOAD, 3); mv.visitVarInsn(ILOAD, 4); mv.visitMethodInsn(INVOKEVIRTUAL, "adr", "setBlockBPdata", "(IIII)V"); mv.visitInsn(ICONST_1); mv.visitInsn(IRETURN); mv.visitMaxs(5, 7); mv.visitEnd(); cw.visitEnd(); System.out.println("OK"); /*try { FileOutputStream fos = new FileOutputStream("d:/Chunk.mod.class"); fos.write(cw.toByteArray()); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ return cw.toByteArray(); }
From source file:blockphysics.asm.BPTransformer.java
License:Open Source License
private byte[] transformBlockPhysics(byte[] bytes) { /*try/*www .j a va 2 s . com*/ { FileOutputStream fos = new FileOutputStream("d:/BlockPhysics.orig.class"); fos.write(bytes); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ try { Class.forName("org.bukkit.Bukkit"); System.out.println("[BlockPhysics] Bukkit detected."); } catch (ClassNotFoundException e) { return bytes; } System.out.print("[BlockPhysics] Patching BlockPhysics.class ............"); boolean ok = false; ClassNode classNode = new ClassNode(); ClassReader classReader = new ClassReader(bytes); classReader.accept(classNode, 0); MethodNode m; Iterator<MethodNode> methods = classNode.methods.iterator(); while (methods.hasNext()) { m = methods.next(); if (m.name.equals("tickBlocksRandomMove") && m.desc.equals("(Ljr;)V")) { m.instructions.clear(); m.localVariables.clear(); InsnList toInject = new InsnList(); toInject.add(new FieldInsnNode(GETSTATIC, "blockphysics/BlockPhysics", "skipMove", "Z")); LabelNode l0 = new LabelNode(); toInject.add(new JumpInsnNode(IFEQ, l0)); toInject.add(new InsnNode(RETURN)); toInject.add(l0); toInject.add(new FrameNode(Opcodes.F_SAME, 0, null, 0, null)); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new FieldInsnNode(GETFIELD, "jr", "G", "Lgnu/trove/map/hash/TLongShortHashMap;")); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "gnu/trove/map/hash/TLongShortHashMap", "iterator", "()Lgnu/trove/iterator/TLongShortIterator;")); toInject.add(new VarInsnNode(ASTORE, 1)); LabelNode l1 = new LabelNode(); toInject.add(l1); toInject.add(new FrameNode(Opcodes.F_APPEND, 1, new Object[] { "gnu/trove/iterator/TLongShortIterator" }, 0, null)); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add(new MethodInsnNode(INVOKEINTERFACE, "gnu/trove/iterator/TLongShortIterator", "hasNext", "()Z")); LabelNode l2 = new LabelNode(); toInject.add(new JumpInsnNode(IFEQ, l2)); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add(new MethodInsnNode(INVOKEINTERFACE, "gnu/trove/iterator/TLongShortIterator", "advance", "()V")); toInject.add(new VarInsnNode(ALOAD, 1)); toInject.add( new MethodInsnNode(INVOKEINTERFACE, "gnu/trove/iterator/TLongShortIterator", "key", "()J")); toInject.add(new VarInsnNode(LSTORE, 2)); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new InsnNode(POP)); toInject.add(new VarInsnNode(LLOAD, 2)); toInject.add(new MethodInsnNode(INVOKESTATIC, "abv", "keyToX", "(J)I")); toInject.add(new VarInsnNode(ISTORE, 4)); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new InsnNode(POP)); toInject.add(new VarInsnNode(LLOAD, 2)); toInject.add(new MethodInsnNode(INVOKESTATIC, "abv", "keyToZ", "(J)I")); toInject.add(new VarInsnNode(ISTORE, 5)); toInject.add(new VarInsnNode(ILOAD, 4)); toInject.add(new IntInsnNode(BIPUSH, 16)); toInject.add(new InsnNode(IMUL)); toInject.add(new VarInsnNode(ISTORE, 6)); toInject.add(new VarInsnNode(ILOAD, 5)); toInject.add(new IntInsnNode(BIPUSH, 16)); toInject.add(new InsnNode(IMUL)); toInject.add(new VarInsnNode(ISTORE, 7)); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new VarInsnNode(ILOAD, 4)); toInject.add(new VarInsnNode(ILOAD, 5)); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "jr", "e", "(II)Ladq;")); toInject.add(new VarInsnNode(ASTORE, 8)); toInject.add(new VarInsnNode(ALOAD, 8)); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "adq", "i", "()[Ladr;")); toInject.add(new VarInsnNode(ASTORE, 12)); toInject.add(new VarInsnNode(ALOAD, 12)); toInject.add(new InsnNode(ARRAYLENGTH)); toInject.add(new VarInsnNode(ISTORE, 9)); toInject.add(new InsnNode(ICONST_0)); toInject.add(new VarInsnNode(ISTORE, 10)); LabelNode l3 = new LabelNode(); toInject.add(l3); toInject.add(new FrameNode(Opcodes.F_FULL, 12, new Object[] { "jr", "gnu/trove/iterator/TLongShortIterator", Opcodes.LONG, Opcodes.INTEGER, Opcodes.INTEGER, Opcodes.INTEGER, Opcodes.INTEGER, "adq", Opcodes.INTEGER, Opcodes.INTEGER, Opcodes.TOP, "[Ladr;" }, 0, new Object[] {})); toInject.add(new VarInsnNode(ILOAD, 10)); toInject.add(new VarInsnNode(ILOAD, 9)); LabelNode l4 = new LabelNode(); toInject.add(new JumpInsnNode(IF_ICMPGE, l4)); toInject.add(new VarInsnNode(ALOAD, 12)); toInject.add(new VarInsnNode(ILOAD, 10)); toInject.add(new InsnNode(AALOAD)); toInject.add(new VarInsnNode(ASTORE, 13)); toInject.add(new VarInsnNode(ALOAD, 13)); LabelNode l5 = new LabelNode(); toInject.add(new JumpInsnNode(IFNULL, l5)); toInject.add(new InsnNode(ICONST_0)); toInject.add(new VarInsnNode(ISTORE, 14)); LabelNode l6 = new LabelNode(); toInject.add(l6); toInject.add(new FrameNode(Opcodes.F_APPEND, 2, new Object[] { "adr", Opcodes.INTEGER }, 0, null)); toInject.add(new VarInsnNode(ILOAD, 14)); toInject.add(new InsnNode(ICONST_3)); toInject.add(new JumpInsnNode(IF_ICMPGE, l5)); toInject.add(new FieldInsnNode(GETSTATIC, "blockphysics/BlockPhysics", "updateLCG", "I")); toInject.add(new InsnNode(ICONST_3)); toInject.add(new InsnNode(IMUL)); toInject.add(new LdcInsnNode(new Integer(1013904223))); toInject.add(new InsnNode(IADD)); toInject.add(new FieldInsnNode(PUTSTATIC, "blockphysics/BlockPhysics", "updateLCG", "I")); toInject.add(new FieldInsnNode(GETSTATIC, "blockphysics/BlockPhysics", "updateLCG", "I")); toInject.add(new InsnNode(ICONST_2)); toInject.add(new InsnNode(ISHR)); toInject.add(new VarInsnNode(ISTORE, 11)); toInject.add(new VarInsnNode(ILOAD, 11)); toInject.add(new IntInsnNode(BIPUSH, 15)); toInject.add(new InsnNode(IAND)); toInject.add(new VarInsnNode(ISTORE, 15)); toInject.add(new VarInsnNode(ILOAD, 11)); toInject.add(new IntInsnNode(BIPUSH, 8)); toInject.add(new InsnNode(ISHR)); toInject.add(new IntInsnNode(BIPUSH, 15)); toInject.add(new InsnNode(IAND)); toInject.add(new VarInsnNode(ISTORE, 16)); toInject.add(new VarInsnNode(ILOAD, 11)); toInject.add(new IntInsnNode(BIPUSH, 16)); toInject.add(new InsnNode(ISHR)); toInject.add(new IntInsnNode(BIPUSH, 15)); toInject.add(new InsnNode(IAND)); toInject.add(new VarInsnNode(ISTORE, 17)); toInject.add(new VarInsnNode(ALOAD, 13)); toInject.add(new VarInsnNode(ILOAD, 15)); toInject.add(new VarInsnNode(ILOAD, 17)); toInject.add(new VarInsnNode(ILOAD, 16)); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "adr", "a", "(III)I")); toInject.add(new VarInsnNode(ISTORE, 18)); toInject.add(new VarInsnNode(ALOAD, 13)); toInject.add(new VarInsnNode(ILOAD, 15)); toInject.add(new VarInsnNode(ILOAD, 17)); toInject.add(new VarInsnNode(ILOAD, 16)); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "adr", "b", "(III)I")); toInject.add(new VarInsnNode(ISTORE, 19)); toInject.add(new FieldInsnNode(GETSTATIC, "blockphysics/BlockPhysics", "blockSet", "[[Lblockphysics/BlockDef;")); toInject.add(new VarInsnNode(ILOAD, 18)); toInject.add(new InsnNode(AALOAD)); toInject.add(new VarInsnNode(ILOAD, 19)); toInject.add(new InsnNode(AALOAD)); toInject.add(new FieldInsnNode(GETFIELD, "blockphysics/BlockDef", "randomtick", "Z")); LabelNode l7 = new LabelNode(); toInject.add(new JumpInsnNode(IFEQ, l7)); toInject.add(new VarInsnNode(ALOAD, 0)); toInject.add(new VarInsnNode(ILOAD, 15)); toInject.add(new VarInsnNode(ILOAD, 6)); toInject.add(new InsnNode(IADD)); toInject.add(new VarInsnNode(ILOAD, 17)); toInject.add(new VarInsnNode(ALOAD, 13)); toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "adr", "d", "()I")); toInject.add(new InsnNode(IADD)); toInject.add(new VarInsnNode(ILOAD, 16)); toInject.add(new VarInsnNode(ILOAD, 7)); toInject.add(new InsnNode(IADD)); toInject.add(new VarInsnNode(ILOAD, 18)); toInject.add(new VarInsnNode(ILOAD, 19)); toInject.add(new InsnNode(ICONST_0)); toInject.add(new MethodInsnNode(INVOKESTATIC, "blockphysics/BlockPhysics", "tryToMove", "(Labv;IIIIIZ)Z")); toInject.add(new InsnNode(POP)); toInject.add(l7); toInject.add(new FrameNode(Opcodes.F_FULL, 14, new Object[] { "jr", "gnu/trove/iterator/TLongShortIterator", Opcodes.LONG, Opcodes.INTEGER, Opcodes.INTEGER, Opcodes.INTEGER, Opcodes.INTEGER, "adq", Opcodes.INTEGER, Opcodes.INTEGER, Opcodes.INTEGER, "[Ladr;", "adr", Opcodes.INTEGER }, 0, new Object[] {})); toInject.add(new IincInsnNode(14, 1)); toInject.add(new JumpInsnNode(GOTO, l6)); toInject.add(l5); toInject.add(new FrameNode(Opcodes.F_FULL, 12, new Object[] { "jr", "gnu/trove/iterator/TLongShortIterator", Opcodes.LONG, Opcodes.INTEGER, Opcodes.INTEGER, Opcodes.INTEGER, Opcodes.INTEGER, "adq", Opcodes.INTEGER, Opcodes.INTEGER, Opcodes.TOP, "[Ladr;" }, 0, new Object[] {})); toInject.add(new IincInsnNode(10, 1)); toInject.add(new JumpInsnNode(GOTO, l3)); toInject.add(l4); toInject.add(new FrameNode(Opcodes.F_FULL, 2, new Object[] { "jr", "gnu/trove/iterator/TLongShortIterator" }, 0, new Object[] {})); toInject.add(new JumpInsnNode(GOTO, l1)); toInject.add(l2); toInject.add(new FrameNode(Opcodes.F_CHOP, 1, null, 0, null)); toInject.add(new InsnNode(RETURN)); m.instructions.add(toInject); ok = true; break; } } ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS); classNode.accept(cw); if (ok) System.out.println("OK"); else System.out.println("Failed." + ok); /*try { FileOutputStream fos = new FileOutputStream("d:/BlockPhysics.class"); fos.write(cw.toByteArray()); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ return cw.toByteArray(); }
From source file:blockphysics.asm.BPTransformer.java
License:Open Source License
private byte[] transformEntity(byte[] bytes) { /*try//from w w w .ja va 2 s . c o m { FileOutputStream fos = new FileOutputStream("d:/Entity.orig.class"); fos.write(bytes); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ System.out.print("[BlockPhysics] Patching Entity.class .................."); boolean ok = false; ClassNode classNode = new ClassNode(); ClassReader classReader = new ClassReader(bytes); classReader.accept(classNode, 0); MethodNode m; Iterator<MethodNode> methods = classNode.methods.iterator(); while (methods.hasNext()) { m = methods.next(); if (m.name.equals("C") && m.desc.equals("()V")) { for (int index = 0; index < m.instructions.size() - 1; index++) { if (m.instructions.get(index).getType() == AbstractInsnNode.LDC_INSN && ((LdcInsnNode) m.instructions.get(index)).cst.equals(0.001D)) { ok = true; m.instructions.set(m.instructions.get(index), new LdcInsnNode(new Double("0.07"))); } } } } ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS); classNode.accept(cw); if (ok) System.out.println("OK"); else System.out.println("Failed." + ok); /*try { FileOutputStream fos = new FileOutputStream("d:/Entity.class"); fos.write(cw.toByteArray()); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ return cw.toByteArray(); }