List of usage examples for org.objectweb.asm.tree InsnList InsnList
InsnList
From source file:com.builtbroken.mc.patch.ClassTransformer.java
/** Fixes {@link net.minecraft.world.World#notifyBlockOfNeighborChange(int, int, int, Block)} causing chunks to load */ private void injectNotifyBlockOfNeighborChange(ClassNode cn) { final MethodNode method = ASMUtility.getMethod(cn, "notifyBlockOfNeighborChange", "func_147460_e"); if (method != null) { final InsnList edit = new InsnList(); edit.add(new VarInsnNode(ALOAD, 0)); edit.add(new VarInsnNode(ILOAD, 1)); //TODO update as needed edit.add(new VarInsnNode(ILOAD, 2)); edit.add(new VarInsnNode(ILOAD, 3)); edit.add(new VarInsnNode(ALOAD, 4)); edit.add(new MethodInsnNode(INVOKESTATIC, HOOK_CLASS, "notifyBlockOfNeighborChange", "(Lnet/minecraft/world/World;IIILnet/minecraft/block/Block;)V", false)); edit.add(new InsnNode(RETURN)); MethodInsnNode m = ASMUtility.getMethodeNode(method, "onNeighborBlockChange", "func_149695_a"); method.instructions.insertBefore(m, edit); method.instructions.remove(m);/*from ww w.ja v a 2 s .c om*/ } else { CoreMod.logger.error( "Failed to find 'public void notifyBlockOfNeighborChange(int, int, int, Block)' in World.class"); } }
From source file:com.builtbroken.profiler.asm.WorldTransformer.java
/** {@link World#setBlock(int, int, int, Block, int, int)} */ private void injectSetBlock(ClassNode cn) { MethodNode setBlockMethod = getMethod(cn, "setBlock", "(IIIL" + getName(CLASS_KEY_BLOCK) + ";II)Z"); if (setBlockMethod != null) { //Create method call final InsnList nodeAdd = new InsnList(); nodeAdd.add(new VarInsnNode(Opcodes.ALOAD, 0)); nodeAdd.add(new VarInsnNode(Opcodes.ILOAD, 1)); nodeAdd.add(new VarInsnNode(Opcodes.ILOAD, 2)); nodeAdd.add(new VarInsnNode(Opcodes.ILOAD, 3)); nodeAdd.add(new MethodInsnNode(Opcodes.INVOKESTATIC, BLOCK_HOOK_CLASS, "onBlockChange", "(L" + getName(CLASS_KEY_WORLD) + ";III)V", false)); //Inject method call at top of method setBlockMethod.instructions.insertBefore(setBlockMethod.instructions.get(0), nodeAdd); //Locate all return points from the method List<AbstractInsnNode> returnNodes = new ArrayList(); for (int i = 0; i < setBlockMethod.instructions.size(); i++) { AbstractInsnNode ain = setBlockMethod.instructions.get(i); if (ain.getOpcode() == Opcodes.IRETURN) { returnNodes.add(ain);//www . j a v a 2 s . co m } } //Inject calls in front of return points for (AbstractInsnNode node : returnNodes) { //Create method call final InsnList nodeAdd2 = new InsnList(); nodeAdd2.add(new VarInsnNode(Opcodes.ALOAD, 0)); nodeAdd2.add(new VarInsnNode(Opcodes.ILOAD, 1)); nodeAdd2.add(new VarInsnNode(Opcodes.ILOAD, 2)); nodeAdd2.add(new VarInsnNode(Opcodes.ILOAD, 3)); nodeAdd2.add(new MethodInsnNode(Opcodes.INVOKESTATIC, BLOCK_HOOK_CLASS, "onPostBlockChange", "(L" + getName(CLASS_KEY_WORLD) + ";III)V", false)); //Inject method call before return node setBlockMethod.instructions.insertBefore(node, nodeAdd2); } } }
From source file:com.builtbroken.profiler.asm.WorldTransformer.java
/** {@link World#setBlockMetadataWithNotify(int, int, int, int, int)} */ private void injectSetBlockWithMeta(ClassNode cn) { MethodNode setBlockMetaMethod = getMethod(cn, "setBlockMetadataWithNotify", "(IIIII)Z"); if (setBlockMetaMethod != null) { final InsnList nodeAdd = new InsnList(); nodeAdd.add(new VarInsnNode(Opcodes.ALOAD, 0)); //this nodeAdd.add(new VarInsnNode(Opcodes.ILOAD, 1)); //x nodeAdd.add(new VarInsnNode(Opcodes.ILOAD, 2)); //y nodeAdd.add(new VarInsnNode(Opcodes.ILOAD, 3)); //z nodeAdd.add(new MethodInsnNode(Opcodes.INVOKESTATIC, BLOCK_HOOK_CLASS, "onBlockMetaChange", "(L" + getName(CLASS_KEY_WORLD) + ";III)V", false)); setBlockMetaMethod.instructions.insertBefore(setBlockMetaMethod.instructions.get(0), nodeAdd); //Locate all return points from the method List<AbstractInsnNode> returnNodes = new ArrayList(); for (int i = 0; i < setBlockMetaMethod.instructions.size(); i++) { AbstractInsnNode ain = setBlockMetaMethod.instructions.get(i); if (ain.getOpcode() == Opcodes.IRETURN) { returnNodes.add(ain);/*from w w w .ja v a 2 s . c o m*/ } } //Inject calls in front of return points for (AbstractInsnNode node : returnNodes) { //Create method call final InsnList nodeAdd2 = new InsnList(); nodeAdd2.add(new VarInsnNode(Opcodes.ALOAD, 0)); nodeAdd2.add(new VarInsnNode(Opcodes.ILOAD, 1)); nodeAdd2.add(new VarInsnNode(Opcodes.ILOAD, 2)); nodeAdd2.add(new VarInsnNode(Opcodes.ILOAD, 3)); nodeAdd2.add(new MethodInsnNode(Opcodes.INVOKESTATIC, BLOCK_HOOK_CLASS, "onPostBlockMetaChange", "(L" + getName(CLASS_KEY_WORLD) + ";III)V", false)); //Inject method call before return node setBlockMetaMethod.instructions.insertBefore(node, nodeAdd2); } } }
From source file:com.dragome.callbackevictor.serverside.bytecode.transformation.asm.ContinuationMethodAnalyzer.java
License:Apache License
@SuppressWarnings("unchecked") void moveNew() throws AnalyzerException { SourceInterpreter i = new SourceInterpreter(); Analyzer a = new Analyzer(i); a.analyze(className, this); final HashMap<AbstractInsnNode, MethodInsnNode> movable = new HashMap<AbstractInsnNode, MethodInsnNode>(); Frame[] frames = a.getFrames(); for (int j = 0; j < methods.size(); j++) { MethodInsnNode mnode = methods.get(j); // require to move NEW instruction int n = instructions.indexOf(mnode); Frame f = frames[n];//from ww w. ja v a 2 s .c om Type[] args = Type.getArgumentTypes(mnode.desc); SourceValue v = (SourceValue) f.getStack(f.getStackSize() - args.length - 1); Set<AbstractInsnNode> insns = v.insns; for (final AbstractInsnNode ins : insns) { if (ins.getOpcode() == NEW) { movable.put(ins, mnode); } else { // other known patterns int n1 = instructions.indexOf(ins); if (ins.getOpcode() == DUP) { // <init> with params AbstractInsnNode ins1 = instructions.get(n1 - 1); if (ins1.getOpcode() == NEW) { movable.put(ins1, mnode); } } else if (ins.getOpcode() == SWAP) { // in exception handler AbstractInsnNode ins1 = instructions.get(n1 - 1); AbstractInsnNode ins2 = instructions.get(n1 - 2); if (ins1.getOpcode() == DUP_X1 && ins2.getOpcode() == NEW) { movable.put(ins2, mnode); } } } } } int updateMaxStack = 0; for (final Map.Entry<AbstractInsnNode, MethodInsnNode> e : movable.entrySet()) { AbstractInsnNode node1 = e.getKey(); int n1 = instructions.indexOf(node1); AbstractInsnNode node2 = instructions.get(n1 + 1); AbstractInsnNode node3 = instructions.get(n1 + 2); int producer = node2.getOpcode(); instructions.remove(node1); // NEW boolean requireDup = false; if (producer == DUP) { instructions.remove(node2); // DUP requireDup = true; } else if (producer == DUP_X1) { instructions.remove(node2); // DUP_X1 instructions.remove(node3); // SWAP requireDup = true; } MethodInsnNode mnode = (MethodInsnNode) e.getValue(); AbstractInsnNode nm = mnode; int varOffset = stackRecorderVar + 1; Type[] args = Type.getArgumentTypes(mnode.desc); // optimizations for some common cases if (args.length == 0) { final InsnList doNew = new InsnList(); doNew.add(node1); // NEW if (requireDup) doNew.add(new InsnNode(DUP)); instructions.insertBefore(nm, doNew); nm = doNew.getLast(); continue; } if (args.length == 1 && args[0].getSize() == 1) { final InsnList doNew = new InsnList(); doNew.add(node1); // NEW if (requireDup) { doNew.add(new InsnNode(DUP)); doNew.add(new InsnNode(DUP2_X1)); doNew.add(new InsnNode(POP2)); updateMaxStack = updateMaxStack < 2 ? 2 : updateMaxStack; // a two extra slots for temp values } else doNew.add(new InsnNode(SWAP)); instructions.insertBefore(nm, doNew); nm = doNew.getLast(); continue; } // TODO this one untested! if ((args.length == 1 && args[0].getSize() == 2) || (args.length == 2 && args[0].getSize() == 1 && args[1].getSize() == 1)) { final InsnList doNew = new InsnList(); doNew.add(node1); // NEW if (requireDup) { doNew.add(new InsnNode(DUP)); doNew.add(new InsnNode(DUP2_X2)); doNew.add(new InsnNode(POP2)); updateMaxStack = updateMaxStack < 2 ? 2 : updateMaxStack; // a two extra slots for temp values } else { doNew.add(new InsnNode(DUP_X2)); doNew.add(new InsnNode(POP)); updateMaxStack = updateMaxStack < 1 ? 1 : updateMaxStack; // an extra slot for temp value } instructions.insertBefore(nm, doNew); nm = doNew.getLast(); continue; } final InsnList doNew = new InsnList(); // generic code using temporary locals // save stack for (int j = args.length - 1; j >= 0; j--) { Type type = args[j]; doNew.add(new VarInsnNode(type.getOpcode(ISTORE), varOffset)); varOffset += type.getSize(); } if (varOffset > maxLocals) { maxLocals = varOffset; } doNew.add(node1); // NEW if (requireDup) doNew.add(new InsnNode(DUP)); // restore stack for (int j = 0; j < args.length; j++) { Type type = args[j]; varOffset -= type.getSize(); doNew.add(new VarInsnNode(type.getOpcode(ILOAD), varOffset)); // clean up store to avoid memory leak? if (type.getSort() == Type.OBJECT || type.getSort() == Type.ARRAY) { updateMaxStack = updateMaxStack < 1 ? 1 : updateMaxStack; // an extra slot for ACONST_NULL doNew.add(new InsnNode(ACONST_NULL)); doNew.add(new VarInsnNode(type.getOpcode(ISTORE), varOffset)); } } instructions.insertBefore(nm, doNew); nm = doNew.getLast(); } maxStack += updateMaxStack; }
From source file:com.github.antag99.retinazer.weaver.SystemProcessor.java
License:Open Source License
@Override public void visitEnd() { for (FlyweightField field : flyweightFields) field.fieldNode.accept(cv);/* ww w. j a v a 2 s . com*/ if (setupMethod == null) { setupMethod = new MethodNode(ACC_PROTECTED, "setup", "()V", null, null); setupMethod.instructions.add(new VarInsnNode(ALOAD, 0)); setupMethod.instructions .add(new MethodInsnNode(INVOKESPECIAL, metadata.superName, "setup", "()V", false)); setupMethod.instructions.add(new InsnNode(RETURN)); } InsnList insns = new InsnList(); for (FlyweightField field : flyweightFields) { String mapperName = field.mapper.componentType.getInternalName() + "$Mapper"; insns.add(new VarInsnNode(ALOAD, 0)); insns.add(new InsnNode(DUP)); insns.add(new FieldInsnNode(GETFIELD, metadata.internalName, field.mapper.name, "Lcom/github/antag99/retinazer/Mapper;")); insns.add(new TypeInsnNode(CHECKCAST, mapperName)); insns.add(new MethodInsnNode(INVOKEVIRTUAL, mapperName, "createFlyweight", "()" + field.mapper.componentType.getDescriptor(), false)); insns.add( new FieldInsnNode(PUTFIELD, metadata.internalName, field.fieldNode.name, field.fieldNode.desc)); } setupMethod.instructions.insertBefore(setupMethod.instructions.getFirst(), insns); setupMethod.accept(cv); super.visitEnd(); }
From source file:com.github.fge.grappa.misc.AsmUtils.java
License:Open Source License
public static InsnList createArgumentLoaders(String methodDescriptor) { Objects.requireNonNull(methodDescriptor, "methodDescriptor"); InsnList instructions = new InsnList(); Type[] types = Type.getArgumentTypes(methodDescriptor); int opcode;//from w w w . j a v a 2 s . c o m VarInsnNode node; for (int i = 0; i < types.length; i++) { opcode = LoadingOpcode.forType(types[i]); node = new VarInsnNode(opcode, i + 1); instructions.add(node); } return instructions; }
From source file:com.github.wreulicke.bean.validation.ASMMethodParameterValidationInjector.java
License:Open Source License
private void inject(MethodNode node, ClassNode clazzNode) { if (Modifier.isStatic(node.access) || Modifier.isAbstract(node.access) || Modifier.isAbstract(node.access) || "<init>".equals(node.name) || "<clinit>".equals(node.name)) { return;// w w w . j a v a 2 s . c o m } InsnList list = new InsnList(); int index = node.localVariables.size(); list.add(new MethodInsnNode(INVOKESTATIC, "javax/validation/Validation", "buildDefaultValidatorFactory", "()Ljavax/validation/ValidatorFactory;", false)); list.add(new MethodInsnNode(INVOKEINTERFACE, "javax/validation/ValidatorFactory", "getValidator", "()Ljavax/validation/Validator;", true)); list.add(new MethodInsnNode(INVOKEINTERFACE, "javax/validation/Validator", "forExecutables", "()Ljavax/validation/executable/ExecutableValidator;", true)); list.add(new VarInsnNode(Opcodes.ASTORE, index)); list.add(new VarInsnNode(Opcodes.ALOAD, index)); list.add(new VarInsnNode(Opcodes.ALOAD, 0)); list.add(new LdcInsnNode(Type.getType("L" + clazzNode.name + ";"))); list.add(new LdcInsnNode(node.name)); @SuppressWarnings("unchecked") List<LocalVariableNode> variables = node.localVariables; Type[] args = Type.getArgumentTypes(node.desc); list.add(new LdcInsnNode(args.length)); list.add(new TypeInsnNode(Opcodes.ANEWARRAY, "java/lang/Class")); for (int i = 0; i < args.length; i++) { int paramIndex = 1 + i; list.add(new InsnNode(Opcodes.DUP)); list.add(new LdcInsnNode(i)); list.add(new LdcInsnNode(Type.getType(variables.get(paramIndex).desc))); list.add(new InsnNode(Opcodes.AASTORE)); } list.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL, "java/lang/Class", "getMethod", "(Ljava/lang/String;[Ljava/lang/Class;)Ljava/lang/reflect/Method;", false)); list.add(new LdcInsnNode(args.length)); list.add(new TypeInsnNode(Opcodes.ANEWARRAY, "java/lang/Object")); for (int i = 0; i < args.length; i++) { int paramIndex = i + 1; list.add(new InsnNode(Opcodes.DUP)); list.add(new LdcInsnNode(i)); list.add(new VarInsnNode(Opcodes.ALOAD, paramIndex)); list.add(new InsnNode(Opcodes.AASTORE)); } list.add(new InsnNode(Opcodes.ICONST_0)); list.add(new TypeInsnNode(Opcodes.ANEWARRAY, "java/lang/Class")); list.add(new MethodInsnNode(INVOKEINTERFACE, "javax/validation/executable/ExecutableValidator", "validateParameters", "(Ljava/lang/Object;Ljava/lang/reflect/Method;[Ljava/lang/Object;[Ljava/lang/Class;)Ljava/util/Set;", true)); list.add(new MethodInsnNode(INVOKESTATIC, "com/github/wreulicke/bean/validation/Constraints", "throwIfNeeded", "(Ljava/util/Set;)V", false)); node.instructions.insert(list); }
From source file:com.lodgon.parboiled.transform.AsmUtils.java
License:Open Source License
public static InsnList createArgumentLoaders(String methodDescriptor) { checkArgNotNull(methodDescriptor, "methodDescriptor"); InsnList instructions = new InsnList(); Type[] types = Type.getArgumentTypes(methodDescriptor); for (int i = 0; i < types.length; i++) { instructions.add(new VarInsnNode(getLoadingOpcode(types[i]), i + 1)); }// w w w.j a v a2s . c om return instructions; }
From source file:com.navercorp.pinpoint.profiler.instrument.ASMClassNodeAdapter.java
License:Apache License
public void addGetterMethod(final String methodName, final ASMFieldNodeAdapter fieldNode) { if (methodName == null || fieldNode == null) { throw new IllegalArgumentException("method name or fieldNode annotation must not be null."); }/*from w w w. j a va 2 s . c om*/ // no argument is (). final String desc = "()" + fieldNode.getDesc(); final MethodNode methodNode = new MethodNode(Opcodes.ACC_PUBLIC, methodName, desc, null, null); if (methodNode.instructions == null) { methodNode.instructions = new InsnList(); } final InsnList instructions = methodNode.instructions; // load this. instructions.add(new VarInsnNode(Opcodes.ALOAD, 0)); // get fieldNode. instructions .add(new FieldInsnNode(Opcodes.GETFIELD, classNode.name, fieldNode.getName(), fieldNode.getDesc())); // return of type. final Type type = Type.getType(fieldNode.getDesc()); instructions.add(new InsnNode(type.getOpcode(Opcodes.IRETURN))); if (this.classNode.methods == null) { this.classNode.methods = new ArrayList<MethodNode>(); } this.classNode.methods.add(methodNode); }
From source file:com.navercorp.pinpoint.profiler.instrument.ASMClassNodeAdapter.java
License:Apache License
public void addSetterMethod(final String methodName, final ASMFieldNodeAdapter fieldNode) { if (methodName == null || fieldNode == null) { throw new IllegalArgumentException("method name or fieldNode annotation must not be null."); }//from w w w.j ava2s. c om // void is V. final String desc = "(" + fieldNode.getDesc() + ")V"; final MethodNode methodNode = new MethodNode(Opcodes.ACC_PUBLIC, methodName, desc, null, null); if (methodNode.instructions == null) { methodNode.instructions = new InsnList(); } final InsnList instructions = methodNode.instructions; // load this. instructions.add(new VarInsnNode(Opcodes.ALOAD, 0)); final Type type = Type.getType(fieldNode.getDesc()); // put field. instructions.add(new VarInsnNode(type.getOpcode(Opcodes.ILOAD), 1)); instructions .add(new FieldInsnNode(Opcodes.PUTFIELD, classNode.name, fieldNode.getName(), fieldNode.getDesc())); // return. instructions.add(new InsnNode(Opcodes.RETURN)); if (this.classNode.methods == null) { this.classNode.methods = new ArrayList<MethodNode>(); } this.classNode.methods.add(methodNode); }