List of usage examples for org.objectweb.asm.tree ClassNode visitEnd
@Override
public void visitEnd()
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 va 2 s . co 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; }
From source file:nova.core.wrapper.mc.forge.v17.asm.lib.ComponentInjector.java
License:Open Source License
private Class<? extends T> construct(List<Class<? extends Component>> components) { // Map components to specified wrapped interfaces Map<Class<?>, Class<? extends Component>> intfComponentMap = new HashMap<>(); for (Class<? extends Component> component : components) { for (Passthrough pt : component.getAnnotationsByType(Passthrough.class)) { Class<?> intf;/*from w w w. ja v a2 s . c o m*/ try { intf = Class.forName(pt.value()); } catch (ClassNotFoundException exec) { throw new ClassLoaderUtil.ClassLoaderException( "Invalid passthrough \"%s\" on component %s, the specified interface doesn't exist.", pt.value(), component); } if (!intf.isAssignableFrom(component)) { throw new ClassLoaderUtil.ClassLoaderException( "Invalid passthrough \"%s\" on component %s, the specified interface isn't implemented.", pt.value(), component); } if (intfComponentMap.containsKey(intf)) { throw new ClassLoaderUtil.ClassLoaderException( "Duplicate Passthrough interface found: %s (%s, %s)", pt.value(), component, intfComponentMap.get(intf)); } intfComponentMap.put(intf, component); } } // Create new ClassNode from cached bytes ClassNode clazzNode = new ClassNode(); String name = Type.getInternalName(baseClazz); String classname = name + "_$$_NOVA_" + cache.size(); // Inject block field clazzNode.visit(V1_8, ACC_PUBLIC | ACC_SUPER, classname, null, name, intfComponentMap.keySet().stream().map(Type::getInternalName).toArray(s -> new String[s])); clazzNode.visitField(ACC_PRIVATE | ACC_FINAL, "$$_provider", Type.getDescriptor(ComponentProvider.class), null, null).visitEnd(); // Add constructors for (Constructor<?> constructor : baseClazz.getConstructors()) { int mod = constructor.getModifiers(); String descr = Type.getConstructorDescriptor(constructor); if (Modifier.isFinal(mod) || Modifier.isPrivate(mod)) { continue; } MethodVisitor mv = clazzNode.visitMethod(mod, "<init>", descr, null, ASMHelper.getExceptionTypes(constructor)); // Call super constructor mv.visitCode(); // load this mv.visitVarInsn(ALOAD, 0); Class<?>[] parameters = constructor.getParameterTypes(); for (int i = 0; i < constructor.getParameterCount(); i++) { // variables mv.visitVarInsn(Type.getType(parameters[i]).getOpcode(ILOAD), i + 1); } mv.visitMethodInsn(INVOKESPECIAL, Type.getInternalName(baseClazz), "<init>", descr, false); // return mv.visitInsn(RETURN); mv.visitMaxs(0, 0); mv.visitEnd(); } // Add methods for (Class<?> intf : intfComponentMap.keySet()) { // Create class constant Type clazzConst = Type.getType(intf.getClass()); for (Method m : intf.getMethods()) { boolean isVoid = m.getReturnType() == null; String descr = Type.getMethodDescriptor(m); MethodVisitor mv = clazzNode.visitMethod(ACC_PUBLIC, m.getName(), descr, null, ASMHelper.getExceptionTypes(m)); mv.visitCode(); // load block instance mv.visitVarInsn(ALOAD, 0); mv.visitFieldInsn(GETFIELD, classname, "$$_provider", Type.getDescriptor(ComponentProvider.class)); mv.visitLdcInsn(clazzConst); // load component instance mv.visitMethodInsn(INVOKEVIRTUAL, Type.getInternalName(ComponentProvider.class), "get", Type.getMethodDescriptor(Type.getType(Component.class), Type.getType(Class.class)), false); // add parameters Class<?>[] parameters = m.getParameterTypes(); for (int i = 0; i < m.getParameterCount(); i++) { mv.visitVarInsn(Type.getType(parameters[i]).getOpcode(ILOAD), i + 1); } // invoke mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(intf), m.getName(), descr, true); mv.visitInsn(isVoid ? RETURN : Type.getType(m.getReturnType()).getOpcode(IRETURN)); mv.visitMaxs(0, 0); mv.visitEnd(); } } clazzNode.visitEnd(); return ASMHelper.defineClass(clazzNode, ClassWriter.COMPUTE_MAXS, baseClazz.getProtectionDomain()); }
From source file:org.jvnet.jax_ws_commons.beans_generator.ambassador.impl.asm.ASMRequestBeanGenerator.java
License:Open Source License
public byte[] generate() { ClassNode tree = new ClassNode(); tree.visit(Opcodes.V1_5, Opcodes.ACC_PUBLIC, methodInfo.getRequestBeanClassName().replace(".", "/"), null, Type.getInternalName(Object.class), new String[0]); generateNoArgsConstructor();// ww w . j a v a 2 s . c om generateAnnotations(); generateFields(); tree.visitEnd(); tree.accept(writer); return writer.toByteArray(); }
From source file:org.jvnet.jax_ws_commons.beans_generator.ambassador.impl.asm.ASMResponseBeanGenerator.java
License:Open Source License
public byte[] generate() { ClassNode tree = new ClassNode(); tree.visit(Opcodes.V1_5, Opcodes.ACC_PUBLIC, methodInfo.getResponseBeanClassName().replace(".", "/"), null, Type.getInternalName(Object.class), new String[0]); generateNoArgsConstructor();/*w w w . ja va 2 s. c om*/ generateAnnotations(); generateFields(); tree.visitEnd(); tree.accept(writer); return writer.toByteArray(); }