List of usage examples for org.objectweb.asm.tree MethodNode visitMethodInsn
@Deprecated public void visitMethodInsn(final int opcode, final String owner, final String name, final String descriptor)
From source file:com.seovic.pof.PortableTypeGenerator.java
License:Apache License
private void implementDefaultConstructor() { MethodNode ctor = findMethod("<init>", "()V"); if (ctor == null) { ctor = new MethodNode(ACC_PUBLIC, "<init>", "()V", null, null); ctor.visitCode();/*ww w .j a va2 s . co m*/ ctor.visitVarInsn(ALOAD, 0); ctor.visitMethodInsn(INVOKESPECIAL, cn.superName, "<init>", "()V"); ctor.visitInsn(RETURN); ctor.visitMaxs(1, 1); ctor.visitEnd(); cn.methods.add(ctor); } else if ((ctor.access & ACC_PUBLIC) == 0) { LOG.info("Class " + cn.name + " has a non-public default constructor. Making it public."); ctor.access = ACC_PUBLIC; } }
From source file:com.seovic.pof.PortableTypeGenerator.java
License:Apache License
private void implementReadExternal() { int index = 0; MethodNode mn = new MethodNode(ACC_PRIVATE, "readExternal", "(Lcom/tangosol/io/pof/PofReader;)V", null, new String[] { "java/io/IOException" }); mn.visitCode();//from w w w. j av a2 s .com for (int version : properties.keySet()) { mn.visitVarInsn(ALOAD, 1); mn.visitMethodInsn(INVOKEINTERFACE, "com/tangosol/io/pof/PofReader", "getVersionId", "()I"); mn.visitIntInsn(BIPUSH, version); Label l = new Label(); mn.visitJumpInsn(IF_ICMPLT, l); SortedSet<FieldNode> fields = properties.get(version); for (FieldNode fn : fields) { Type type = Type.getType(fn.desc); if (isDebugEnabled()) { mn.visitLdcInsn("reading attribute " + index + " (" + fn.name + ") from POF stream"); mn.visitIntInsn(BIPUSH, 7); mn.visitMethodInsn(INVOKESTATIC, "com/tangosol/net/CacheFactory", "log", "(Ljava/lang/String;I)V"); } mn.visitVarInsn(ALOAD, 0); mn.visitVarInsn(ALOAD, 1); mn.visitIntInsn(BIPUSH, index++); ReadMethod readMethod = getReadMethod(fn, type); readMethod.createTemplate(mn, fn, type); mn.visitMethodInsn(INVOKEINTERFACE, "com/tangosol/io/pof/PofReader", readMethod.getName(), readMethod.getDescriptor()); if (type.getSort() == Type.OBJECT || "readObjectArray".equals(readMethod.getName())) { mn.visitTypeInsn(CHECKCAST, type.getInternalName()); } mn.visitFieldInsn(PUTFIELD, cn.name, fn.name, fn.desc); } mn.visitLabel(l); mn.visitFrame(F_SAME, 0, null, 0, null); } mn.visitInsn(RETURN); mn.visitMaxs(0, 0); mn.visitEnd(); if (!hasMethod(mn)) { cn.methods.add(mn); } LOG.debug("Implemented method: " + mn.name); }
From source file:com.seovic.pof.PortableTypeGenerator.java
License:Apache License
private void implementWriteExternal() { int index = 0; MethodNode mn = new MethodNode(ACC_PRIVATE, "writeExternal", "(Lcom/tangosol/io/pof/PofWriter;)V", null, new String[] { "java/io/IOException" }); mn.visitCode();//from ww w . j a va2 s . c o m for (int version : properties.keySet()) { SortedSet<FieldNode> fields = properties.get(version); for (FieldNode fn : fields) { addPofIndex(fn, index); Type type = Type.getType(fn.desc); if (isDebugEnabled()) { mn.visitLdcInsn("writing attribute " + index + " (" + fn.name + ") to POF stream"); mn.visitIntInsn(BIPUSH, 7); mn.visitMethodInsn(INVOKESTATIC, "com/tangosol/net/CacheFactory", "log", "(Ljava/lang/String;I)V"); } mn.visitVarInsn(ALOAD, 1); mn.visitIntInsn(BIPUSH, index++); mn.visitVarInsn(ALOAD, 0); mn.visitFieldInsn(GETFIELD, cn.name, fn.name, fn.desc); WriteMethod writeMethod = getWriteMethod(fn, type); writeMethod.pushUniformTypes(mn); mn.visitMethodInsn(INVOKEINTERFACE, "com/tangosol/io/pof/PofWriter", writeMethod.getName(), writeMethod.getDescriptor()); } } mn.visitInsn(RETURN); mn.visitMaxs(0, 0); mn.visitEnd(); if (!hasMethod(mn)) { cn.methods.add(mn); } LOG.debug("Implemented method: " + mn.name); }
From source file:naftoreiclag.dontdigleft.transformer.ResizePlayerBoudingBox.java
License:Open Source License
@Override public byte[] transform(String name, String transformedName, byte[] basicClass) { if (name.equals("net.minecraft.entity.player.EntityPlayer") || name.equals("xl")) { ClassNode classNode = new ClassNode(); ClassReader classReader = new ClassReader(basicClass); classReader.accept(classNode, 0); MethodNode mv = new MethodNode(ASM4, ACC_PROTECTED, "setSize", "(FF)V", null, null); mv.visitCode();// w w w . java2 s . co m Label l0 = new Label(); mv.visitLabel(l0); mv.visitVarInsn(FLOAD, 1); mv.visitLdcInsn(new Float("0.6")); mv.visitInsn(FCMPL); Label l1 = new Label(); mv.visitJumpInsn(IFNE, l1); mv.visitVarInsn(FLOAD, 2); mv.visitLdcInsn(new Float("1.8")); mv.visitInsn(FCMPL); mv.visitJumpInsn(IFNE, l1); Label l2 = new Label(); mv.visitLabel(l2); mv.visitLdcInsn(new Float("0.6")); mv.visitVarInsn(FSTORE, 1); Label l3 = new Label(); mv.visitLabel(l3); mv.visitLdcInsn(new Float("0.6")); mv.visitVarInsn(FSTORE, 2); mv.visitLabel(l1); mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null); mv.visitVarInsn(ALOAD, 0); mv.visitVarInsn(FLOAD, 1); mv.visitVarInsn(FLOAD, 2); mv.visitMethodInsn(INVOKESPECIAL, "net/minecraft/entity/Entity", "setSize", "(FF)V"); Label l4 = new Label(); mv.visitLabel(l4); mv.visitInsn(RETURN); Label l5 = new Label(); mv.visitLabel(l5); mv.visitLocalVariable("this", "Lnet/minecraft/entity/player/EntityPlayer;", null, l0, l5, 0); mv.visitLocalVariable("par1", "F", null, l0, l5, 1); mv.visitLocalVariable("par2", "F", null, l0, l5, 2); mv.visitMaxs(3, 3); mv.visitEnd(); ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS); classNode.accept(cw); mv.accept(cw); return cw.toByteArray(); } else { return basicClass; } }
From source file:net.petercashel.jmsDd.util.ASMTransformer.java
License:Apache License
public static byte[] transform(String name, byte[] bytes) { if (debug)/*from w w w . j a v a 2 s . c o m*/ System.out.println(bytes.length); ClassNode classNode = new ClassNode(); String classNameASM = name.replace('.', '/'); ClassReader classReader = new ClassReader(bytes); classReader.accept(classNode, 0); boolean DoModInit = false; boolean HasInit = false; String initDesc = "()V"; boolean lockDesc = false; try { try { for (int i = 0; i < classNode.visibleAnnotations.size(); i++) { AnnotationNode ann = (AnnotationNode) classNode.visibleAnnotations.get(i); if (ann.desc.equalsIgnoreCase("Lnet/petercashel/jmsDd/module/Module;")) { try { if (debug) System.out.println("ANNOTE!"); DoModInit = true; Map<String, Object> values = asmList2Map(ann.values); ModuleSystem.modulesToLoad.put( values.get("ModuleName").toString().replace("[", "").replace("]", ""), classNode.name.replace("/", ".")); } catch (Exception e) { e.printStackTrace(); } } } } catch (Exception e) { } try { if (DoModInit) { for (int i = 0; i < classNode.methods.size(); i++) { MethodNode m = (MethodNode) classNode.methods.get(i); if (m.name.contentEquals("<init>")) { initDesc = m.desc; if (m.desc.contentEquals("()V")) { HasInit = true; if (debug) System.out.println("Found <init>"); } } } } } catch (Exception e) { e.printStackTrace(); } } catch (Exception e) { e.printStackTrace(); } if (debug) System.out.println("Still alive?"); try { // L0 // LINENUMBER 43 L0 // ALOAD 0 // INVOKESPECIAL // CLASSNAME FOR ASM // ()V ////// This is effectically a super() call but to the discovered constructor // L1 // LINENUMBER 44 L1 // INVOKESTATIC net/petercashel/jmsDd/API/API$Impl.getAPI ()Lnet/petercashel/jmsDd/API/API; // ALOAD 0 // INVOKEINTERFACE net/petercashel/jmsDd/API/API.registerEventBus (Ljava/lang/Object;)V // L2 // LINENUMBER 46 L2 // RETURN // L3 // LOCALVARIABLE this // "L" + CLASSNAME FOR ASM + ";" // L0 L3 0 // LOCALVARIABLE e Lnet/petercashel/jmsDd/event/module/DummyEvent; L0 L3 1 // MAXSTACK = 2 // MAXLOCALS = 2 if (DoModInit) { if (HasInit) { if (debug) System.out.println("Adding Extra Constructor to " + name); MethodNode constructor = new MethodNode(Opcodes.ACC_PUBLIC, "<init>", "(Lnet/petercashel/jmsDd/event/module/DummyEvent;)V", null, null); Label L0 = new Label(); constructor.visitLabel(L0); constructor.visitVarInsn(Opcodes.ALOAD, 0); constructor.visitMethodInsn(Opcodes.INVOKESPECIAL, classNameASM, "<init>", initDesc); Label L1 = new Label(); constructor.visitLabel(L1); constructor.visitMethodInsn(Opcodes.INVOKESTATIC, "net/petercashel/jmsDd/API/API$Impl", "getAPI", "()Lnet/petercashel/jmsDd/API/API;"); constructor.visitVarInsn(Opcodes.ALOAD, 0); constructor.visitMethodInsn(Opcodes.INVOKEINTERFACE, "net/petercashel/jmsDd/API/API", "registerEventBus", "(Ljava/lang/Object;)V"); Label L2 = new Label(); constructor.visitLabel(L2); constructor.visitInsn(Opcodes.RETURN); Label L3 = new Label(); constructor.visitLabel(L3); constructor.visitLocalVariable("this", "L" + classNameASM + ";", null, L0, L3, 0); constructor.visitLocalVariable("e", "Lnet/petercashel/jmsDd/event/module/DummyEvent;", null, L0, L3, 1); constructor.visitMaxs(2, 2); constructor.visitEnd(); classNode.methods.add(constructor); } else { System.err.println("WARNING! " + name + " Doesn't have a default no-args constructor. Module loader cannot chain load the constructor. \n If you are recieving this error and your module has no constructors defined, or a no-args constructor defined, \n please report the bug to the author of JMSDd."); MethodNode constructor = new MethodNode(Opcodes.ACC_PUBLIC, "<init>", "(Lnet/petercashel/jmsDd/event/module/DummyEvent;)V", null, null); Label L0 = new Label(); constructor.visitLabel(L0); constructor.visitVarInsn(Opcodes.ALOAD, 0); //INVOKESPECIAL java/lang/Object.<init> ()V ////// There is no other constructor, call super() to Object. constructor.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/Object", "<init>", "()V"); Label L1 = new Label(); constructor.visitLabel(L1); constructor.visitMethodInsn(Opcodes.INVOKESTATIC, "net/petercashel/jmsDd/API/API$Impl", "getAPI", "()Lnet/petercashel/jmsDd/API/API;"); constructor.visitVarInsn(Opcodes.ALOAD, 0); constructor.visitMethodInsn(Opcodes.INVOKEINTERFACE, "net/petercashel/jmsDd/API/API", "registerEventBus", "(Ljava/lang/Object;)V"); Label L2 = new Label(); constructor.visitLabel(L2); constructor.visitInsn(Opcodes.RETURN); Label L3 = new Label(); constructor.visitLabel(L3); constructor.visitLocalVariable("this", "L" + classNameASM + ";", null, L0, L3, 0); constructor.visitLocalVariable("e", "Lnet/petercashel/jmsDd/event/module/DummyEvent;", null, L0, L3, 1); constructor.visitMaxs(2, 2); constructor.visitEnd(); classNode.methods.add(constructor); } classNode.visitEnd(); ClassWriter wr = new ClassWriter(0); classNode.accept(wr); bytes = wr.toByteArray(); } } catch (Exception e) { e.printStackTrace(); } if (debug) System.out.println("Still alive."); if (debug) System.out.println(bytes.length); if (plugins.size() > 0) { for (ASMPlugin p : plugins) { try { bytes = p.transform(name, bytes); } catch (Exception e) { } } } return bytes; }