List of usage examples for org.objectweb.asm Opcodes ARETURN
int ARETURN
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From source file:gemlite.core.internal.asm.AsmHelper.java
License:Apache License
public final static int getReturnCodeByType(String typeDesc) { switch (typeDesc) { case "I": return Opcodes.IRETURN; case "J": return Opcodes.LRETURN; case "D": return Opcodes.DRETURN; case "F": return Opcodes.FRETURN; }/*from ww w . ja v a 2s. c o m*/ return Opcodes.ARETURN; }
From source file:gemlite.core.internal.measurement.MeasureHelper.java
License:Apache License
public final static void instrumentCheckPoint(String className, MethodNode mn) { if (LogUtil.getCoreLog().isTraceEnabled()) LogUtil.getCoreLog().trace("Found check point, class:" + className + " method:" + mn.name); InsnList insn = mn.instructions;//from ww w . j a v a 2 s. c om List<AbstractInsnNode> returnIndex = new ArrayList<>(); // return int localVarCount = mn.localVariables.size(); for (int i = 0; i < insn.size(); i++) { AbstractInsnNode insnNode = (AbstractInsnNode) insn.get(i); switch (insnNode.getOpcode()) { case Opcodes.ARETURN: case Opcodes.IRETURN: case Opcodes.DRETURN: case Opcodes.LRETURN: case Opcodes.FRETURN: returnIndex.add(insnNode.getPrevious()); break; case Opcodes.RETURN: returnIndex.add(insnNode); break; } } // insn.insert(new VarInsnNode(Opcodes.LSTORE, localVarCount + 2)); insn.insert( new MethodInsnNode(Opcodes.INVOKESTATIC, "java/lang/System", "currentTimeMillis", "()J", false)); // ? for (AbstractInsnNode insnNode : returnIndex) { insn.insertBefore(insnNode, new MethodInsnNode(Opcodes.INVOKESTATIC, "java/lang/System", "currentTimeMillis", "()J", false)); insn.insertBefore(insnNode, new VarInsnNode(Opcodes.LSTORE, localVarCount + 4)); insn.insertBefore(insnNode, new LdcInsnNode(className)); insn.insertBefore(insnNode, new LdcInsnNode(mn.name)); insn.insertBefore(insnNode, new VarInsnNode(Opcodes.LLOAD, localVarCount + 2)); insn.insertBefore(insnNode, new VarInsnNode(Opcodes.LLOAD, localVarCount + 4)); insn.insertBefore(insnNode, new MethodInsnNode(Opcodes.INVOKESTATIC, "gemlite/core/internal/measurement/MeasureHelper", "recordCheckPoint", "(Ljava/lang/String;Ljava/lang/String;JJ)V", false)); } }
From source file:gnu.classpath.tools.rmic.ClassRmicCompiler.java
License:Open Source License
private static void generateClassForNamer(ClassVisitor cls) { MethodVisitor cv = cls.visitMethod(Opcodes.ACC_PRIVATE + Opcodes.ACC_STATIC + Opcodes.ACC_SYNTHETIC, forName,//from www.j a v a 2 s .c o m Type.getMethodDescriptor(Type.getType(Class.class), new Type[] { Type.getType(String.class) }), null, null); Label start = new Label(); cv.visitLabel(start); cv.visitVarInsn(Opcodes.ALOAD, 0); cv.visitMethodInsn(Opcodes.INVOKESTATIC, Type.getInternalName(Class.class), "forName", Type.getMethodDescriptor(Type.getType(Class.class), new Type[] { Type.getType(String.class) })); cv.visitInsn(Opcodes.ARETURN); Label handler = new Label(); cv.visitLabel(handler); cv.visitVarInsn(Opcodes.ASTORE, 1); cv.visitTypeInsn(Opcodes.NEW, typeArg(NoClassDefFoundError.class)); cv.visitInsn(Opcodes.DUP); cv.visitVarInsn(Opcodes.ALOAD, 1); cv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Type.getInternalName(ClassNotFoundException.class), "getMessage", Type.getMethodDescriptor(Type.getType(String.class), new Type[] {})); cv.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(NoClassDefFoundError.class), "<init>", Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] { Type.getType(String.class) })); cv.visitInsn(Opcodes.ATHROW); cv.visitTryCatchBlock(start, handler, handler, Type.getInternalName(ClassNotFoundException.class)); cv.visitMaxs(-1, -1); }
From source file:gnu.classpath.tools.rmic.ClassRmicCompiler.java
License:Open Source License
private void generateSkel() throws IOException { skelname = fullclassname + "_Skel"; String skelclassname = classname + "_Skel"; File file = new File(destination == null ? "" : destination + File.separator + skelname.replace('.', File.separatorChar) + ".class"); if (verbose)//from w ww. jav a 2 s. co m System.out.println("[Generating class " + skelname + "]"); final ClassWriter skel = new ClassWriter(true); classInternalName = skelname.replace('.', '/'); skel.visit(Opcodes.V1_1, Opcodes.ACC_PUBLIC + Opcodes.ACC_FINAL, classInternalName, Type.getInternalName(Object.class), null, new String[] { Type.getType(Skeleton.class).getInternalName() }); skel.visitField(Opcodes.ACC_PRIVATE + Opcodes.ACC_STATIC + Opcodes.ACC_FINAL, "interfaceHash", Type.LONG_TYPE.getDescriptor(), null, new Long(RMIHashes.getInterfaceHash(clazz))); skel.visitField(Opcodes.ACC_PRIVATE + Opcodes.ACC_STATIC + Opcodes.ACC_FINAL, "operations", Type.getDescriptor(Operation[].class), null, null); MethodVisitor clinit = skel.visitMethod(Opcodes.ACC_STATIC, "<clinit>", Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] {}), null, null); fillOperationArray(clinit); clinit.visitInsn(Opcodes.RETURN); clinit.visitMaxs(-1, -1); // no arg public constructor MethodVisitor init = skel.visitMethod(Opcodes.ACC_PUBLIC, "<init>", Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] {}), null, null); init.visitVarInsn(Opcodes.ALOAD, 0); init.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(Object.class), "<init>", Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] {})); init.visitInsn(Opcodes.RETURN); init.visitMaxs(-1, -1); /* * public Operation[] getOperations() * returns a clone of the operations array */ MethodVisitor getOp = skel.visitMethod(Opcodes.ACC_PUBLIC, "getOperations", Type.getMethodDescriptor(Type.getType(Operation[].class), new Type[] {}), null, null); getOp.visitFieldInsn(Opcodes.GETSTATIC, classInternalName, "operations", Type.getDescriptor(Operation[].class)); getOp.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Type.getInternalName(Object.class), "clone", Type.getMethodDescriptor(Type.getType(Object.class), new Type[] {})); getOp.visitTypeInsn(Opcodes.CHECKCAST, typeArg(Operation[].class)); getOp.visitInsn(Opcodes.ARETURN); getOp.visitMaxs(-1, -1); // public void dispatch(Remote, RemoteCall, int opnum, long hash) MethodVisitor dispatch = skel.visitMethod(Opcodes.ACC_PUBLIC, "dispatch", Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] { Type.getType(Remote.class), Type.getType(RemoteCall.class), Type.INT_TYPE, Type.LONG_TYPE }), null, new String[] { Type.getInternalName(Exception.class) }); Variables var = new Variables(); var.declare("this"); var.declare("remoteobj"); var.declare("remotecall"); var.declare("opnum"); var.declareWide("hash"); /* * if opnum >= 0 * XXX it is unclear why there is handling of negative opnums */ dispatch.visitVarInsn(Opcodes.ILOAD, var.get("opnum")); Label nonNegativeOpnum = new Label(); Label opnumSet = new Label(); dispatch.visitJumpInsn(Opcodes.IFGE, nonNegativeOpnum); for (int i = 0; i < remotemethods.length; i++) { // assign opnum if hash matches supplied hash dispatch.visitVarInsn(Opcodes.LLOAD, var.get("hash")); dispatch.visitLdcInsn(new Long(remotemethods[i].hash)); Label notIt = new Label(); dispatch.visitInsn(Opcodes.LCMP); dispatch.visitJumpInsn(Opcodes.IFNE, notIt); // opnum = <opnum> dispatch.visitLdcInsn(new Integer(i)); dispatch.visitVarInsn(Opcodes.ISTORE, var.get("opnum")); dispatch.visitJumpInsn(Opcodes.GOTO, opnumSet); dispatch.visitLabel(notIt); } // throw new SkeletonMismatchException Label mismatch = new Label(); dispatch.visitJumpInsn(Opcodes.GOTO, mismatch); dispatch.visitLabel(nonNegativeOpnum); // if opnum is already set, check that the hash matches the interface dispatch.visitVarInsn(Opcodes.LLOAD, var.get("hash")); dispatch.visitFieldInsn(Opcodes.GETSTATIC, classInternalName, "interfaceHash", Type.LONG_TYPE.getDescriptor()); dispatch.visitInsn(Opcodes.LCMP); dispatch.visitJumpInsn(Opcodes.IFEQ, opnumSet); dispatch.visitLabel(mismatch); dispatch.visitTypeInsn(Opcodes.NEW, typeArg(SkeletonMismatchException.class)); dispatch.visitInsn(Opcodes.DUP); dispatch.visitLdcInsn("interface hash mismatch"); dispatch.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(SkeletonMismatchException.class), "<init>", Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] { Type.getType(String.class) })); dispatch.visitInsn(Opcodes.ATHROW); // opnum has been set dispatch.visitLabel(opnumSet); dispatch.visitVarInsn(Opcodes.ALOAD, var.get("remoteobj")); dispatch.visitTypeInsn(Opcodes.CHECKCAST, typeArg(clazz)); dispatch.visitVarInsn(Opcodes.ASTORE, var.get("remoteobj")); Label deflt = new Label(); Label[] methLabels = new Label[remotemethods.length]; for (int i = 0; i < methLabels.length; i++) methLabels[i] = new Label(); // switch on opnum dispatch.visitVarInsn(Opcodes.ILOAD, var.get("opnum")); dispatch.visitTableSwitchInsn(0, remotemethods.length - 1, deflt, methLabels); // Method dispatch for (int i = 0; i < remotemethods.length; i++) { dispatch.visitLabel(methLabels[i]); Method m = remotemethods[i].meth; generateMethodSkel(dispatch, m, var); } dispatch.visitLabel(deflt); dispatch.visitTypeInsn(Opcodes.NEW, typeArg(UnmarshalException.class)); dispatch.visitInsn(Opcodes.DUP); dispatch.visitLdcInsn("invalid method number"); dispatch.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(UnmarshalException.class), "<init>", Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] { Type.getType(String.class) })); dispatch.visitInsn(Opcodes.ATHROW); dispatch.visitMaxs(-1, -1); skel.visitEnd(); byte[] classData = skel.toByteArray(); if (!noWrite) { if (file.exists()) file.delete(); if (file.getParentFile() != null) file.getParentFile().mkdirs(); FileOutputStream fos = new FileOutputStream(file); fos.write(classData); fos.flush(); fos.close(); } }
From source file:gnu.classpath.tools.rmic.ClassRmicCompiler.java
License:Open Source License
private static int returnOpcode(Class cls) { int returncode; if (cls.equals(Boolean.TYPE)) returncode = Opcodes.IRETURN;/*w w w .j a va2s .com*/ else if (cls.equals(Byte.TYPE)) returncode = Opcodes.IRETURN; else if (cls.equals(Character.TYPE)) returncode = Opcodes.IRETURN; else if (cls.equals(Short.TYPE)) returncode = Opcodes.IRETURN; else if (cls.equals(Integer.TYPE)) returncode = Opcodes.IRETURN; else if (cls.equals(Long.TYPE)) returncode = Opcodes.LRETURN; else if (cls.equals(Float.TYPE)) returncode = Opcodes.FRETURN; else if (cls.equals(Double.TYPE)) returncode = Opcodes.DRETURN; else if (cls.equals(Void.TYPE)) returncode = Opcodes.RETURN; else returncode = Opcodes.ARETURN; return returncode; }
From source file:hellfirepvp.astralsorcery.core.patch.helper.PatchBlockModify.java
License:Open Source License
@Override public void patch(ClassNode cn) { MethodNode mn = getMethod(cn, "setBlockState", "func_177436_a", "(Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/block/state/IBlockState;)Lnet/minecraft/block/state/IBlockState;"); for (int i = 0; i < mn.instructions.size(); i++) { AbstractInsnNode aNode = mn.instructions.get(i); if (aNode.getOpcode() == Opcodes.ARETURN) { AbstractInsnNode prev = aNode.getPrevious(); if (prev instanceof VarInsnNode && prev.getOpcode() == Opcodes.ALOAD && ((VarInsnNode) prev).var == 8) { mn.instructions.insertBefore(prev, new FieldInsnNode(Opcodes.GETSTATIC, "net/minecraftforge/common/MinecraftForge", "EVENT_BUS", "Lnet/minecraftforge/fml/common/eventhandler/EventBus;")); mn.instructions.insertBefore(prev, new TypeInsnNode(Opcodes.NEW, "hellfirepvp/astralsorcery/common/event/BlockModifyEvent")); mn.instructions.insertBefore(prev, new InsnNode(Opcodes.DUP)); mn.instructions.insertBefore(prev, new VarInsnNode(Opcodes.ALOAD, 0)); //Chunk mn.instructions.insertBefore(prev, new VarInsnNode(Opcodes.ALOAD, 1)); //Pos mn.instructions.insertBefore(prev, new VarInsnNode(Opcodes.ALOAD, 8)); //OldState mn.instructions.insertBefore(prev, new VarInsnNode(Opcodes.ALOAD, 2)); //NewState mn.instructions.insertBefore(prev, new MethodInsnNode(Opcodes.INVOKESPECIAL, "hellfirepvp/astralsorcery/common/event/BlockModifyEvent", "<init>", "(Lnet/minecraft/world/chunk/Chunk;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/block/state/IBlockState;Lnet/minecraft/block/state/IBlockState;)V", false));/*w w w . j a v a 2s . co m*/ mn.instructions.insertBefore(prev, new MethodInsnNode(Opcodes.INVOKEVIRTUAL, "net/minecraftforge/fml/common/eventhandler/EventBus", "post", "(Lnet/minecraftforge/fml/common/eventhandler/Event;)Z", false)); mn.instructions.insertBefore(prev, new InsnNode(Opcodes.POP)); return; } } } throw new ASMTransformationException( "Could not find the expected return statement in the setBlockState method!"); }
From source file:instrumentation.InstrumentationMethodAdapter.java
License:Open Source License
public void visitInsn(int opcode) { switch (opcode) { case Opcodes.MONITORENTER: insertCode(opcode, "MonitorEnterBefore"); mv.visitInsn(Opcodes.DUP);/* w ww . ja va 2s. c om*/ mv.visitInsn(opcode); insertCode(opcode, "MonitorEnterAfter"); mv.visitInsn(Opcodes.POP); break; case Opcodes.MONITOREXIT: insertCode(opcode, "MonitorExitBefore"); mv.visitInsn(opcode); break; case Opcodes.ATHROW: case Opcodes.RETURN: case Opcodes.IRETURN: case Opcodes.LRETURN: case Opcodes.FRETURN: case Opcodes.DRETURN: case Opcodes.ARETURN: addMonitorExitBeforeReturn(); mv.visitInsn(opcode); break; default: mv.visitInsn(opcode); } }
From source file:io.awacs.plugin.springmvc.ServiceWrapper.java
License:Apache License
/** * origin method: (XXX)X/* www.j a v a 2s . com*/ * <p> * proxy method: (XXXLjavax/servlet/http/HttpServletRequest;)X * req -> localIndex - 1 * * @param cn * @param origin * @return */ private MethodNode doProxy(ClassNode cn, MethodNode origin) { MethodNode newNode = copyMethod(origin); //move annotations hideAnnotations(origin); LabelNode l0 = new LabelNode(); LabelNode l1 = new LabelNode(); LabelNode l2 = new LabelNode(); String returnType = origin.desc.substring(origin.desc.indexOf(')') + 1); int localIndex = copyParameters(origin, newNode, l0, l2); newNode.tryCatchBlocks.add(new TryCatchBlockNode(l0, l1, l2, "java/lang/Exception")); //localIndex -> elapsedTime newNode.localVariables.add(new LocalVariableNode("elapsedTime", "J", null, l0, l1, localIndex)); // newNode.instructions.add(l0); // long elapsedTime = System.currentTimeMillis(); newNode.instructions .add(new MethodInsnNode(Opcodes.INVOKESTATIC, "java/lang/System", "currentTimeMillis", "()J")); newNode.instructions.add(new VarInsnNode(Opcodes.LSTORE, localIndex)); int paramCount = getParamCount(origin.desc, origin.access); //load? for (int i = 0; i < paramCount; i++) { LocalVariableNode node = (LocalVariableNode) newNode.localVariables.get(i); switch (node.desc) { case "J": newNode.instructions.add(new VarInsnNode(Opcodes.LLOAD, node.index)); break; case "D": newNode.instructions.add(new VarInsnNode(Opcodes.DLOAD, node.index)); break; case "F": newNode.instructions.add(new VarInsnNode(Opcodes.FLOAD, node.index)); break; case "I": newNode.instructions.add(new VarInsnNode(Opcodes.ILOAD, node.index)); break; case "S": newNode.instructions.add(new VarInsnNode(Opcodes.ILOAD, node.index)); break; case "Z": newNode.instructions.add(new VarInsnNode(Opcodes.ILOAD, node.index)); break; case "B": newNode.instructions.add(new VarInsnNode(Opcodes.ILOAD, node.index)); break; case "C": newNode.instructions.add(new VarInsnNode(Opcodes.ILOAD, node.index)); break; default: newNode.instructions.add(new VarInsnNode(Opcodes.ALOAD, node.index)); break; } } // newNode.instructions.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL, cn.name, origin.name, origin.desc)); // newNode.instructions .add(new MethodInsnNode(Opcodes.INVOKESTATIC, "java/lang/System", "currentTimeMillis", "()J")); newNode.instructions.add(new VarInsnNode(Opcodes.LLOAD, localIndex)); newNode.instructions.add(new InsnNode(Opcodes.LSUB)); newNode.instructions.add(new VarInsnNode(Opcodes.LSTORE, localIndex)); newNode.instructions.add(new VarInsnNode(Opcodes.ALOAD, localIndex - 1)); newNode.instructions.add(new MethodInsnNode(Opcodes.INVOKEINTERFACE, "javax/servlet/http/HttpServletRequest", "getRequestURI", "()Ljava/lang/String;")); //? newNode.instructions.add(new VarInsnNode(Opcodes.LLOAD, localIndex)); //SpringmvcPlugin.incrAccess(uri, elapsedTime); newNode.instructions.add(new MethodInsnNode(Opcodes.INVOKESTATIC, "io/awacs/plugin/springmvc/SpringmvcPlugin", "incrAccess", "(Ljava/lang/String;J)V")); // newNode.instructions.add(l1); switch (returnType) { case "J": newNode.instructions.add(new InsnNode(Opcodes.LRETURN)); break; case "D": newNode.instructions.add(new InsnNode(Opcodes.DRETURN)); break; case "F": newNode.instructions.add(new InsnNode(Opcodes.FRETURN)); break; case "I": newNode.instructions.add(new InsnNode(Opcodes.IRETURN)); break; case "S": newNode.instructions.add(new InsnNode(Opcodes.IRETURN)); break; case "C": newNode.instructions.add(new InsnNode(Opcodes.IRETURN)); break; case "B": newNode.instructions.add(new InsnNode(Opcodes.IRETURN)); break; case "Z": newNode.instructions.add(new InsnNode(Opcodes.IRETURN)); break; default: newNode.instructions.add(new InsnNode(Opcodes.ARETURN)); break; } newNode.instructions.add(l2); newNode.instructions .add(new FrameNode(Opcodes.F_SAME1, 0, null, 1, new Object[] { "java/lang/Exception" })); newNode.instructions.add(new VarInsnNode(Opcodes.ASTORE, localIndex)); newNode.instructions.add(new VarInsnNode(Opcodes.ALOAD, localIndex - 1)); newNode.instructions.add(new MethodInsnNode(Opcodes.INVOKEINTERFACE, "javax/servlet/http/HttpServletRequest", "getRequestURI", "()Ljava/lang/String;")); newNode.instructions.add(new VarInsnNode(Opcodes.ALOAD, localIndex)); newNode.instructions .add(new MethodInsnNode(Opcodes.INVOKESTATIC, "io/awacs/plugin/springmvc/SpringmvcPlugin", "incrFailure", "(Ljava/lang/String;Ljava/lang/Throwable;)V")); newNode.instructions.add(new VarInsnNode(Opcodes.ALOAD, localIndex)); newNode.instructions.add(new InsnNode(Opcodes.ATHROW)); newNode.maxLocals = origin.maxLocals + 3; newNode.maxStack = Math.max(localIndex + 2, 6); return newNode; }
From source file:io.awacs.plugin.stacktrace.ClassTransformer.java
License:Apache License
/** * ?// ww w. j ava 2s. c o m * 1?try catch? try{ * 2???? io.awacs.plugin.stacktrace.StackFrames.init(); * 3???? io.awacs.plugin.stacktrace.StackFrames.push(className,methodName,0); * 4? Object val = methodName_origin_className(args); * 5????? io.awacs.plugin.stacktrace.StackFrames.push(className,methodName,1); * 5??? List list = io.awacs.plugin.stacktrace.StackFrames.dump(); * 7????? io.awacs.plugin.stacktrace.StackTracePlugin.incrAccess(list); * 8? return val; * }catch(java.lang.Exception e){ * 9?? io.awacs.plugin.stacktrace.StackTracePlugin.incrFailure(e); * 10? throw e; * } */ private void transformTerminatedMethod(MethodNode origin, MethodNode proxy, ClassNode owner) { LabelNode l0 = new LabelNode(); LabelNode l1 = new LabelNode(); LabelNode l2 = new LabelNode(); //try catch? proxy.tryCatchBlocks.add(new TryCatchBlockNode(l0, l1, l2, "java/lang/Exception")); proxy.instructions.add(l0); //? proxy.instructions.add(new MethodInsnNode(Opcodes.INVOKESTATIC, "io/awacs/plugin/stacktrace/StackFrames", "init", "()V", false)); proxy.instructions.add(new LdcInsnNode(owner.name.replaceAll("/", "."))); proxy.instructions.add(new LdcInsnNode(proxy.name)); proxy.instructions.add(new LdcInsnNode(0)); // proxy.instructions.add(new MethodInsnNode(Opcodes.INVOKESTATIC, "io/awacs/plugin/stacktrace/StackFrames", "push", "(Ljava/lang/String;Ljava/lang/String;I)V", false)); int varIndex = 0;//??? //???,????this? if ((proxy.access & Opcodes.ACC_STATIC) != Opcodes.ACC_STATIC) { proxy.instructions.add(new VarInsnNode(Opcodes.ALOAD, 0)); varIndex = 1; } List<String> parameters = resolveParameters(proxy.desc); //??? for (String param : parameters) { VarInsnNode insnNode; switch (param) { case "J": insnNode = new VarInsnNode(Opcodes.LLOAD, varIndex); varIndex += 2; break; case "D": insnNode = new VarInsnNode(Opcodes.DLOAD, varIndex); varIndex += 2; break; case "F": insnNode = new VarInsnNode(Opcodes.FLOAD, varIndex++); break; case "I": insnNode = new VarInsnNode(Opcodes.ILOAD, varIndex++); break; case "S": insnNode = new VarInsnNode(Opcodes.ILOAD, varIndex++); break; case "Z": insnNode = new VarInsnNode(Opcodes.ILOAD, varIndex++); break; case "B": insnNode = new VarInsnNode(Opcodes.ILOAD, varIndex++); break; case "C": insnNode = new VarInsnNode(Opcodes.ILOAD, varIndex++); break; default: insnNode = new VarInsnNode(Opcodes.ALOAD, varIndex++); break; } proxy.instructions.add(insnNode); } // if ((origin.access & Opcodes.ACC_STATIC) == Opcodes.ACC_STATIC) proxy.instructions .add(new MethodInsnNode(Opcodes.INVOKESTATIC, owner.name, origin.name, origin.desc, false)); else proxy.instructions .add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL, owner.name, origin.name, origin.desc, false)); proxy.instructions.add(new LdcInsnNode(owner.name.replaceAll("/", "."))); proxy.instructions.add(new LdcInsnNode(proxy.name)); proxy.instructions.add(new LdcInsnNode(1)); //? proxy.instructions.add(new MethodInsnNode(Opcodes.INVOKESTATIC, "io/awacs/plugin/stacktrace/StackFrames", "push", "(Ljava/lang/String;Ljava/lang/String;I)V", false)); //?? proxy.instructions.add(new MethodInsnNode(Opcodes.INVOKESTATIC, "io/awacs/plugin/stacktrace/StackFrames", "dump", "()Ljava/util/List;", false)); //??? proxy.instructions.add(new MethodInsnNode(Opcodes.INVOKESTATIC, "io/awacs/plugin/stacktrace/StackTracePlugin", "incrAccess", "(Ljava/util/List;)V", false)); proxy.instructions.add(l1); // String returnType = origin.desc.substring(origin.desc.indexOf(')') + 1); switch (returnType) { case "J": proxy.instructions.add(new InsnNode(Opcodes.LRETURN)); break; case "D": proxy.instructions.add(new InsnNode(Opcodes.DRETURN)); break; case "F": proxy.instructions.add(new InsnNode(Opcodes.FRETURN)); break; case "I": proxy.instructions.add(new InsnNode(Opcodes.IRETURN)); break; case "S": proxy.instructions.add(new InsnNode(Opcodes.IRETURN)); break; case "C": proxy.instructions.add(new InsnNode(Opcodes.IRETURN)); break; case "B": proxy.instructions.add(new InsnNode(Opcodes.IRETURN)); break; case "Z": proxy.instructions.add(new InsnNode(Opcodes.IRETURN)); break; case "V": proxy.instructions.add(new InsnNode(Opcodes.RETURN)); break; default: proxy.instructions.add(new InsnNode(Opcodes.ARETURN)); break; } proxy.instructions.add(l2); //? proxy.instructions.add(new FrameNode(Opcodes.F_SAME1, 0, null, 1, new Object[] { "java/lang/Exception" })); proxy.instructions.add(new VarInsnNode(Opcodes.ASTORE, varIndex)); proxy.instructions.add(new VarInsnNode(Opcodes.ALOAD, varIndex)); proxy.instructions.add(new MethodInsnNode(Opcodes.INVOKESTATIC, "io/awacs/plugin/stacktrace/StackTracePlugin", "incrFailure", "(Ljava/lang/Throwable;)V", false)); proxy.instructions.add(new VarInsnNode(Opcodes.ALOAD, varIndex)); proxy.instructions.add(new InsnNode(Opcodes.ATHROW)); proxy.maxLocals = varIndex + 1; proxy.maxStack = Math.max(varIndex, 5); }
From source file:io.syncframework.optimizer.OControllerClassVisitor.java
License:Apache License
/** * Generates _asActions() method as following: * /*from ww w . j a v a2s .c o m*/ * if(name.equals("upload")) * return upload(); * else if(name.equals("save")) * return save(); * else if(name.equals("main")) * return main(); * else if(name.equals("redir")) * return redir(); * else * throw new RuntimeException("no action named "+name); */ private void createActionMethod() { StringBuilder sb = new StringBuilder(); sb.append("(").append(Type.getType(String.class)).append(")").append(Type.getType(Result.class)); String desc = sb.toString(); MethodVisitor mv = cv.visitMethod(Opcodes.ACC_PUBLIC, "_asAction", desc, null, null); Label start = new Label(); Label next = new Label(); Label variable = new Label(); boolean first = true; for (String name : reflector.getActions().keySet()) { Label l0 = null; Label l1 = new Label(); if (first) { l0 = new Label(); first = false; } else { l0 = next; next = new Label(); } mv.visitLabel(l0); if (!first) { mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null); } mv.visitVarInsn(Opcodes.ALOAD, 1); mv.visitLdcInsn(name); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/String", "equals", "(Ljava/lang/Object;)Z", false); mv.visitJumpInsn(Opcodes.IFEQ, next); mv.visitLabel(l1); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, reflector.getClazzInternalName(), name, "()" + Type.getType(Result.class), false); mv.visitInsn(Opcodes.ARETURN); } mv.visitLabel(next); mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null); mv.visitTypeInsn(Opcodes.NEW, "java/lang/NoSuchMethodException"); mv.visitInsn(Opcodes.DUP); mv.visitTypeInsn(Opcodes.NEW, "java/lang/StringBuilder"); mv.visitInsn(Opcodes.DUP); mv.visitLdcInsn("no @Action named "); mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/StringBuilder", "<init>", "(Ljava/lang/String;)V", false); mv.visitVarInsn(Opcodes.ALOAD, 1); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/StringBuilder", "append", "(Ljava/lang/String;)Ljava/lang/StringBuilder;", false); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/StringBuilder", "toString", "()Ljava/lang/String;", false); mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/NoSuchMethodException", "<init>", "(Ljava/lang/String;)V", false); mv.visitInsn(Opcodes.ATHROW); mv.visitLabel(variable); mv.visitLocalVariable("this", reflector.getClazzDescriptor(), null, start, next, 0); mv.visitLocalVariable("name", "Ljava/lang/String;", null, start, next, 1); mv.visitMaxs(5, 2); mv.visitEnd(); }