List of usage examples for org.objectweb.asm Opcodes NEW
int NEW
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From source file:com.khubla.jvmbasic.jvmbasicc.function.impl.rule.inputstmtRule.java
License:Open Source License
@Override public boolean execute(GenerationContext generationContext) throws Exception { try {/*from w ww.ja va 2s.com*/ /* * process the contained nodes. This will push the String prompt onto the stack, and a variable name */ Dispatcher.dispatchChildren(generationContext); /* * input with a prompt? INPUT <prompt> , <variable> */ if (generationContext.getParseTree().getChildCount() == 4) { /* * swap the stack arguments so we have the prompt on top and the variable name next */ generationContext.getMethodVisitor().visitVarInsn(Opcodes.ALOAD, 0); generationContext.getMethodVisitor().visitFieldInsn(Opcodes.GETFIELD, generationContext.getClassName(), RTLHelper.EXECUTIONCONTEXT_NAME, RTLHelper.JASIC_RUNTIME_EXECUTIONCONTEXT_TYPE); generationContext.getMethodVisitor().visitMethodInsn(Opcodes.INVOKEVIRTUAL, RTLHelper.JASIC_RUNTIME_EXECUTIONCONTEXT, "swap", "()V"); /* * print the prompt */ generationContext.getMethodVisitor().visitFieldInsn(Opcodes.GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;"); generationContext.getMethodVisitor().visitVarInsn(Opcodes.ALOAD, 0); generationContext.getMethodVisitor().visitFieldInsn(Opcodes.GETFIELD, generationContext.getClassName(), RTLHelper.EXECUTIONCONTEXT_NAME, RTLHelper.JASIC_RUNTIME_EXECUTIONCONTEXT_TYPE); generationContext.getMethodVisitor().visitMethodInsn(Opcodes.INVOKEVIRTUAL, RTLHelper.JASIC_RUNTIME_EXECUTIONCONTEXT, "pop", "()Lcom/khubla/jvmbasic/jvmbasicrt/Value;"); generationContext.getMethodVisitor().visitMethodInsn(Opcodes.INVOKEVIRTUAL, "com/khubla/jvmbasic/jvmbasicrt/Value", "getAsString", "()Ljava/lang/String;"); generationContext.getMethodVisitor().visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/io/PrintStream", "print", "(Ljava/lang/String;)V"); } /* * read a line and push onto value stack */ generationContext.getMethodVisitor().visitVarInsn(Opcodes.ALOAD, 0); generationContext.getMethodVisitor().visitFieldInsn(Opcodes.GETFIELD, generationContext.getClassName(), RTLHelper.EXECUTIONCONTEXT_NAME, RTLHelper.JASIC_RUNTIME_EXECUTIONCONTEXT_TYPE); generationContext.getMethodVisitor().visitTypeInsn(Opcodes.NEW, "java/lang/StringBuilder"); generationContext.getMethodVisitor().visitInsn(Opcodes.DUP); generationContext.getMethodVisitor().visitLdcInsn("\""); generationContext.getMethodVisitor().visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/StringBuilder", "<init>", "(Ljava/lang/String;)V"); generationContext.getMethodVisitor().visitTypeInsn(Opcodes.NEW, "java/io/BufferedReader"); generationContext.getMethodVisitor().visitInsn(Opcodes.DUP); generationContext.getMethodVisitor().visitTypeInsn(Opcodes.NEW, "java/io/InputStreamReader"); generationContext.getMethodVisitor().visitInsn(Opcodes.DUP); generationContext.getMethodVisitor().visitVarInsn(Opcodes.ALOAD, 0); generationContext.getMethodVisitor().visitFieldInsn(Opcodes.GETFIELD, generationContext.getClassName(), "inputStream", "Ljava/io/InputStream;"); generationContext.getMethodVisitor().visitMethodInsn(Opcodes.INVOKESPECIAL, "java/io/InputStreamReader", "<init>", "(Ljava/io/InputStream;)V"); generationContext.getMethodVisitor().visitMethodInsn(Opcodes.INVOKESPECIAL, "java/io/BufferedReader", "<init>", "(Ljava/io/Reader;)V"); generationContext.getMethodVisitor().visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/io/BufferedReader", "readLine", "()Ljava/lang/String;"); generationContext.getMethodVisitor().visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/StringBuilder", "append", "(Ljava/lang/String;)Ljava/lang/StringBuilder;"); generationContext.getMethodVisitor().visitLdcInsn("\""); generationContext.getMethodVisitor().visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/StringBuilder", "append", "(Ljava/lang/String;)Ljava/lang/StringBuilder;"); generationContext.getMethodVisitor().visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/StringBuilder", "toString", "()Ljava/lang/String;"); generationContext.getMethodVisitor().visitMethodInsn(Opcodes.INVOKEVIRTUAL, RTLHelper.JASIC_RUNTIME_EXECUTIONCONTEXT, "push", "(Ljava/lang/String;)V"); /* * swap the stack arguments so we have the variable name on top and the value below it */ generationContext.getMethodVisitor().visitVarInsn(Opcodes.ALOAD, 0); generationContext.getMethodVisitor().visitFieldInsn(Opcodes.GETFIELD, generationContext.getClassName(), RTLHelper.EXECUTIONCONTEXT_NAME, RTLHelper.JASIC_RUNTIME_EXECUTIONCONTEXT_TYPE); generationContext.getMethodVisitor().visitMethodInsn(Opcodes.INVOKEVIRTUAL, RTLHelper.JASIC_RUNTIME_EXECUTIONCONTEXT, "swap", "()V"); /* * set the variable */ generationContext.getMethodVisitor().visitVarInsn(Opcodes.ALOAD, 0); generationContext.getMethodVisitor().visitFieldInsn(Opcodes.GETFIELD, generationContext.getClassName(), RTLHelper.EXECUTIONCONTEXT_NAME, RTLHelper.JASIC_RUNTIME_EXECUTIONCONTEXT_TYPE); generationContext.getMethodVisitor().visitVarInsn(Opcodes.ALOAD, 0); generationContext.getMethodVisitor().visitFieldInsn(Opcodes.GETFIELD, generationContext.getClassName(), RTLHelper.EXECUTIONCONTEXT_NAME, RTLHelper.JASIC_RUNTIME_EXECUTIONCONTEXT_TYPE); generationContext.getMethodVisitor().visitMethodInsn(Opcodes.INVOKEVIRTUAL, RTLHelper.JASIC_RUNTIME_EXECUTIONCONTEXT, "pop", "()Lcom/khubla/jvmbasic/jvmbasicrt/Value;"); generationContext.getMethodVisitor().visitMethodInsn(Opcodes.INVOKEVIRTUAL, "com/khubla/jvmbasic/jvmbasicrt/Value", "getString", "()Ljava/lang/String;"); generationContext.getMethodVisitor().visitVarInsn(Opcodes.ALOAD, 0); generationContext.getMethodVisitor().visitFieldInsn(Opcodes.GETFIELD, generationContext.getClassName(), RTLHelper.EXECUTIONCONTEXT_NAME, RTLHelper.JASIC_RUNTIME_EXECUTIONCONTEXT_TYPE); generationContext.getMethodVisitor().visitMethodInsn(Opcodes.INVOKEVIRTUAL, RTLHelper.JASIC_RUNTIME_EXECUTIONCONTEXT, "pop", "()Lcom/khubla/jvmbasic/jvmbasicrt/Value;"); generationContext.getMethodVisitor().visitMethodInsn(Opcodes.INVOKEVIRTUAL, RTLHelper.JASIC_RUNTIME_EXECUTIONCONTEXT, "setVariable", "(Ljava/lang/String;Lcom/khubla/jvmbasic/jvmbasicrt/Value;)V"); return true; } catch (final Exception e) { throw new Exception("Exception in execute", e); } }
From source file:com.khubla.jvmbasic.jvmbasicc.function.impl.rule.rndfuncRule.java
License:Open Source License
@Override public boolean execute(GenerationContext generationContext) throws Exception { try {// w w w. j av a 2s . co m /* * get the operands */ Dispatcher.dispatchChildren(generationContext); /* * declare the local var Random */ generationContext.getMethodVisitor().visitVarInsn(Opcodes.ALOAD, 0); generationContext.getMethodVisitor().visitFieldInsn(Opcodes.GETFIELD, generationContext.getClassName(), RTLHelper.EXECUTIONCONTEXT_NAME, RTLHelper.JASIC_RUNTIME_EXECUTIONCONTEXT_TYPE); generationContext.getMethodVisitor().visitTypeInsn(Opcodes.NEW, "java/util/Random"); generationContext.getMethodVisitor().visitInsn(Opcodes.DUP); generationContext.getMethodVisitor().visitMethodInsn(Opcodes.INVOKESPECIAL, "java/util/Random", "<init>", "()V"); generationContext.getMethodVisitor().visitVarInsn(Opcodes.ALOAD, 0); generationContext.getMethodVisitor().visitFieldInsn(Opcodes.GETFIELD, generationContext.getClassName(), RTLHelper.EXECUTIONCONTEXT_NAME, RTLHelper.JASIC_RUNTIME_EXECUTIONCONTEXT_TYPE); generationContext.getMethodVisitor().visitMethodInsn(Opcodes.INVOKEVIRTUAL, RTLHelper.JASIC_RUNTIME_EXECUTIONCONTEXT, "pop", "()Lcom/khubla/jvmbasic/jvmbasicrt/Value;"); generationContext.getMethodVisitor().visitMethodInsn(Opcodes.INVOKEVIRTUAL, "com/khubla/jvmbasic/jvmbasicrt/Value", "getInteger", "()Ljava/lang/Integer;"); generationContext.getMethodVisitor().visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Integer", "intValue", "()I"); generationContext.getMethodVisitor().visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/util/Random", "nextInt", "(I)I"); generationContext.getMethodVisitor().visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/Integer", "valueOf", "(I)Ljava/lang/Integer;"); generationContext.getMethodVisitor().visitMethodInsn(Opcodes.INVOKEVIRTUAL, RTLHelper.JASIC_RUNTIME_EXECUTIONCONTEXT, "push", "(Ljava/lang/Integer;)V"); return true; } catch (final Exception e) { throw new Exception("Exception in execute", e); } }
From source file:com.khubla.jvmbasic.jvmbasicc.JVMBasicCompiler.java
License:Open Source License
/** * generate init./*w ww .j a va2s . c o m*/ * <p> * This inits the class members and assigns class members, such as the ExecutionContext. * </p> * <p> * <code> * public ExecutionContext executionContext = new ExecutionContext(); * </code> * </p> */ protected void generateInit(String className, ClassWriter classWriter) throws Exception { try { final MethodVisitor methodVisitor = classWriter.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "()V", null, null); methodVisitor.visitCode(); /* * call init() */ final Label l0 = new Label(); methodVisitor.visitLabel(l0); methodVisitor.visitVarInsn(Opcodes.ALOAD, 0); methodVisitor.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/Object", "<init>", "()V"); /* * create a new execution context and assign it */ final Label l1 = new Label(); methodVisitor.visitLabel(l1); methodVisitor.visitVarInsn(Opcodes.ALOAD, 0); methodVisitor.visitTypeInsn(Opcodes.NEW, RTLHelper.JASIC_RUNTIME_EXECUTIONCONTEXT); methodVisitor.visitInsn(Opcodes.DUP); methodVisitor.visitMethodInsn(Opcodes.INVOKESPECIAL, RTLHelper.JASIC_RUNTIME_EXECUTIONCONTEXT, "<init>", "()V"); methodVisitor.visitFieldInsn(Opcodes.PUTFIELD, className, RTLHelper.EXECUTIONCONTEXT_NAME, RTLHelper.JASIC_RUNTIME_EXECUTIONCONTEXT_TYPE); /* * return */ final Label l2 = new Label(); methodVisitor.visitLabel(l2); methodVisitor.visitLineNumber(8, l2); methodVisitor.visitInsn(Opcodes.RETURN); /* * declare variables */ final Label l3 = new Label(); methodVisitor.visitLabel(l3); methodVisitor.visitLocalVariable("this", "L" + className + ";", null, l0, l3, 0); methodVisitor.visitMaxs(3, 1); methodVisitor.visitEnd(); } catch (final Exception e) { throw new Exception("Exception in generateInit", e); } }
From source file:com.khubla.jvmbasic.jvmbasicc.JVMBasicCompiler.java
License:Open Source License
/** * generate void main(String[])/*from w w w . j a va2s. com*/ * <p> * <code> * public static void main(String[] args) { * ExampleProgram exampleProgram = new ExampleProgram(); * try { * exampleProgram.inputStream = System.in; * exampleProgram.outputStream = System.out; * exampleProgram.program(); * } catch (Exception e) { * e.printStackTrace(); * } * } * </code> * </p> */ protected void generateMain(String classname, ClassWriter classWriter) throws Exception { try { /* * make method */ final MethodVisitor methodVisitor = classWriter.visitMethod(Opcodes.ACC_PUBLIC + Opcodes.ACC_STATIC, "main", "([Ljava/lang/String;)V", null, null); methodVisitor.visitCode(); final Label l0 = new Label(); final Label l1 = new Label(); final Label l2 = new Label(); methodVisitor.visitTryCatchBlock(l0, l1, l2, "java/lang/Exception"); final Label l3 = new Label(); methodVisitor.visitLabel(l3); /* * declare a local instance of the class in the void() main, store as variable 1. */ methodVisitor.visitTypeInsn(Opcodes.NEW, classname); methodVisitor.visitInsn(Opcodes.DUP); methodVisitor.visitMethodInsn(Opcodes.INVOKESPECIAL, classname, "<init>", "()V"); methodVisitor.visitVarInsn(Opcodes.ASTORE, 1); /* * assign the input stream */ methodVisitor.visitVarInsn(Opcodes.ALOAD, 1); methodVisitor.visitFieldInsn(Opcodes.GETSTATIC, "java/lang/System", "in", "Ljava/io/InputStream;"); methodVisitor.visitFieldInsn(Opcodes.PUTFIELD, classname, "inputStream", "Ljava/io/InputStream;"); /* * assign the output stream */ methodVisitor.visitVarInsn(Opcodes.ALOAD, 1); methodVisitor.visitFieldInsn(Opcodes.GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;"); methodVisitor.visitFieldInsn(Opcodes.PUTFIELD, classname, "outputStream", "Ljava/io/PrintStream;"); /* * load the class instance from variable 1 and call "program" */ methodVisitor.visitLabel(l0); methodVisitor.visitVarInsn(Opcodes.ALOAD, 1); methodVisitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, classname, "program", "()V"); methodVisitor.visitLabel(l1); final Label l4 = new Label(); methodVisitor.visitJumpInsn(Opcodes.GOTO, l4); methodVisitor.visitLabel(l2); methodVisitor.visitFrame(Opcodes.F_FULL, 2, new Object[] { "[Ljava/lang/String;", classname }, 1, new Object[] { "java/lang/Exception" }); methodVisitor.visitVarInsn(Opcodes.ASTORE, 2); final Label l5 = new Label(); methodVisitor.visitLabel(l5); methodVisitor.visitLineNumber(21, l5); methodVisitor.visitVarInsn(Opcodes.ALOAD, 2); methodVisitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Exception", "printStackTrace", "()V"); /* * return */ methodVisitor.visitLabel(l4); methodVisitor.visitFrame(Opcodes.F_SAME, 0, null, 0, null); methodVisitor.visitInsn(Opcodes.RETURN); /* * declare the parameters */ final Label l6 = new Label(); methodVisitor.visitLabel(l6); methodVisitor.visitLocalVariable("args", "[Ljava/lang/String;", null, l3, l6, 0); methodVisitor.visitLocalVariable("exampleProgram", "L" + classname + ";", null, l0, l6, 1); methodVisitor.visitLocalVariable("e", "Ljava/lang/Exception;", null, l5, l4, 2); /* * done */ methodVisitor.visitMaxs(2, 3); methodVisitor.visitEnd(); } catch (final Exception e) { throw new Exception("Exception in generateMain", e); } }
From source file:com.liferay.portal.nio.intraband.proxy.IntrabandProxyUtilTest.java
License:Open Source License
private void _doTestCreateProxyMethodNode(Method method, int index, String skeletonId, String stubInternalName) { MethodNode proxyMethodNode = IntrabandProxyUtil.createProxyMethodNode(method, index, skeletonId, Type.getType(stubInternalName)); _assertMethodNodeSignature(proxyMethodNode, method.getModifiers() & ~Modifier.ABSTRACT, method.getName(), Type.getMethodDescriptor(method), method.getExceptionTypes()); InsnList insnList = proxyMethodNode.instructions; Iterator<AbstractInsnNode> iterator = insnList.iterator(); // NEW com/liferay/portal/kernel/io/Serializer _assertTypeInsnNode(iterator.next(), Opcodes.NEW, Serializer.class); // DUP//from ww w. ja v a 2 s . c om _assertInsnNode(iterator.next(), Opcodes.DUP); // INVOKESPECIAL com/liferay/portal/kernel/io/Serializer <init> ()V _assertMethodInsnNode(iterator.next(), Opcodes.INVOKESPECIAL, Type.getInternalName(Serializer.class), "<init>", Type.VOID_TYPE); // ASTORE argumentsSize Type methodType = Type.getType(method); int argumentsAndReturnSizes = methodType.getArgumentsAndReturnSizes(); int argumentsSize = argumentsAndReturnSizes >> 2; _assertVarInsnNode(iterator.next(), Opcodes.ASTORE, argumentsSize); // ALOAD argumentsSize _assertVarInsnNode(iterator.next(), Opcodes.ALOAD, argumentsSize); // LDC skeletonId _assertLdcInsnNode(iterator.next(), Opcodes.LDC, skeletonId); // INVOKEVIRTUAL com/liferay/portal/kernel/io/Serializer writeString // (Ljava/lang/String;)V _assertMethodInsnNode(iterator.next(), Opcodes.INVOKEVIRTUAL, Type.getInternalName(Serializer.class), "writeString", Type.VOID_TYPE, Type.getType(String.class)); // ALOAD argumentsSize _assertVarInsnNode(iterator.next(), Opcodes.ALOAD, argumentsSize); // ALOAD 0 _assertVarInsnNode(iterator.next(), Opcodes.ALOAD, 0); // GETFIELD stubInternalName _id Ljava/lang/String; _assertFieldInsnNode(iterator.next(), Opcodes.GETFIELD, stubInternalName, "_id", String.class); // INVOKEVIRTUAL com/liferay/portal/kernel/io/Serializer writeString // (Ljava/lang/String;)V _assertMethodInsnNode(iterator.next(), Opcodes.INVOKEVIRTUAL, Type.getInternalName(Serializer.class), "writeString", Type.VOID_TYPE, Type.getType(String.class)); // ALOAD argumentsSize _assertVarInsnNode(iterator.next(), Opcodes.ALOAD, argumentsSize); if (index <= 5) { // ICONST_index _assertInsnNode(iterator.next(), Opcodes.ICONST_0 + index); } else { // BIPUSH index _assertIntInsnNode(iterator.next(), Opcodes.BIPUSH, index); } // INVOKEVIRTUAL com/liferay/portal/kernel/io/Serializer writeInt (I)V _assertMethodInsnNode(iterator.next(), Opcodes.INVOKEVIRTUAL, Type.getInternalName(Serializer.class), "writeInt", Type.VOID_TYPE, Type.INT_TYPE); Class<?>[] parameterTypes = method.getParameterTypes(); int offset = 1; for (int i = 0; i < parameterTypes.length; i++) { Class<?> parameterClass = parameterTypes[i]; // ALOAD argumentsSize _assertVarInsnNode(iterator.next(), Opcodes.ALOAD, argumentsSize); // xLOAD i Type parameterType = Type.getType(parameterClass); _assertVarInsnNode(iterator.next(), parameterType.getOpcode(Opcodes.ILOAD), offset); offset += parameterType.getSize(); if (parameterClass.isPrimitive() || (parameterClass == String.class)) { String name = TextFormatter.format(parameterClass.getSimpleName(), TextFormatter.G); _assertMethodInsnNode(iterator.next(), Opcodes.INVOKEVIRTUAL, Type.getInternalName(Serializer.class), "write".concat(name), Type.VOID_TYPE, parameterType); } else { _assertMethodInsnNode(iterator.next(), Opcodes.INVOKEVIRTUAL, Type.getInternalName(Serializer.class), "writeObject", Type.VOID_TYPE, Type.getType(Serializable.class)); } } // ALOAD 0 _assertVarInsnNode(iterator.next(), Opcodes.ALOAD, 0); // ALOAD argumentsSize _assertVarInsnNode(iterator.next(), Opcodes.ALOAD, argumentsSize); Class<?> returnClass = method.getReturnType(); Type returnType = Type.getType(returnClass); if (returnClass == void.class) { // INVOKESPECIAL stubInternalName _send // (Lcom/liferay/portal/kernel/io/Serializer;)V _assertMethodInsnNode(iterator.next(), Opcodes.INVOKESPECIAL, stubInternalName, "_send", Type.VOID_TYPE, Type.getType(Serializer.class)); _assertInsnNode(iterator.next(), Opcodes.RETURN); } else { // INVOKESPECIAL stubInternalName _syncSend // (Lcom/liferay/portal/kernel/io/Serializer;)Ljava/io/Serializable; _assertMethodInsnNode(iterator.next(), Opcodes.INVOKESPECIAL, stubInternalName, "_syncSend", Type.getType(Serializable.class), Type.getType(Serializer.class)); if (returnClass.isPrimitive()) { // ASTORE argumentsSize + 1 _assertVarInsnNode(iterator.next(), Opcodes.ASTORE, argumentsSize + 1); // ALOAD argumentsSize + 1 _assertVarInsnNode(iterator.next(), Opcodes.ALOAD, argumentsSize + 1); // IFNULL nullCheckLabel LabelNode nullCheckLabelNode = _assertJumpInsnNode(iterator.next(), Opcodes.IFNULL); // ALOAD argumentsSize + 1 _assertVarInsnNode(iterator.next(), Opcodes.ALOAD, argumentsSize + 1); // CHECKCAST returnType _assertTypeInsnNode(iterator.next(), Opcodes.CHECKCAST, _autoboxingMap.get(returnClass)); if (returnClass == boolean.class) { // INVOKEVIRTUAL java/lang/Boolean booleanValue ()Z _assertMethodInsnNode(iterator.next(), Opcodes.INVOKEVIRTUAL, Type.getInternalName(Boolean.class), "booleanValue", Type.BOOLEAN_TYPE); } else if (returnClass == byte.class) { // INVOKEVIRTUAL java/lang/Number intValue ()I _assertMethodInsnNode(iterator.next(), Opcodes.INVOKEVIRTUAL, Type.getInternalName(Number.class), "intValue", Type.INT_TYPE); } else if (returnClass == char.class) { // INVOKEVIRTUAL java/lang/Character charValue ()C _assertMethodInsnNode(iterator.next(), Opcodes.INVOKEVIRTUAL, Type.getInternalName(Character.class), "charValue", Type.CHAR_TYPE); } else if (returnClass == double.class) { // INVOKEVIRTUAL java/lang/Number doubleValue ()D _assertMethodInsnNode(iterator.next(), Opcodes.INVOKEVIRTUAL, Type.getInternalName(Number.class), "doubleValue", Type.DOUBLE_TYPE); } else if (returnClass == float.class) { // INVOKEVIRTUAL java/lang/Number floatValue ()F _assertMethodInsnNode(iterator.next(), Opcodes.INVOKEVIRTUAL, Type.getInternalName(Number.class), "floatValue", Type.FLOAT_TYPE); } else if (returnClass == int.class) { // INVOKEVIRTUAL java/lang/Number intValue ()I _assertMethodInsnNode(iterator.next(), Opcodes.INVOKEVIRTUAL, Type.getInternalName(Number.class), "intValue", Type.INT_TYPE); } else if (returnClass == long.class) { // INVOKEVIRTUAL java/lang/Number longValue ()J _assertMethodInsnNode(iterator.next(), Opcodes.INVOKEVIRTUAL, Type.getInternalName(Number.class), "longValue", Type.LONG_TYPE); } else if (returnClass == short.class) { // INVOKEVIRTUAL java/lang/Number intValue ()I _assertMethodInsnNode(iterator.next(), Opcodes.INVOKEVIRTUAL, Type.getInternalName(Number.class), "intValue", Type.INT_TYPE); } // xRETURN _assertInsnNode(iterator.next(), returnType.getOpcode(Opcodes.IRETURN)); // nullCheckLabel Assert.assertSame(nullCheckLabelNode, iterator.next()); // xRETURN null/0 if (!returnClass.isPrimitive()) { _assertInsnNode(iterator.next(), Opcodes.ACONST_NULL); _assertInsnNode(iterator.next(), Opcodes.ARETURN); } else if (returnClass == void.class) { _assertInsnNode(iterator.next(), Opcodes.RETURN); } else if (returnClass == float.class) { _assertInsnNode(iterator.next(), Opcodes.FCONST_0); _assertInsnNode(iterator.next(), Opcodes.FRETURN); } else if (returnClass == double.class) { _assertInsnNode(iterator.next(), Opcodes.DCONST_0); _assertInsnNode(iterator.next(), Opcodes.DRETURN); } else if (returnClass == long.class) { _assertInsnNode(iterator.next(), Opcodes.LCONST_0); _assertInsnNode(iterator.next(), Opcodes.LRETURN); } else { _assertInsnNode(iterator.next(), Opcodes.ICONST_0); _assertInsnNode(iterator.next(), Opcodes.IRETURN); } } else { if (returnClass != Object.class) { // CHECKCAST _assertTypeInsnNode(iterator.next(), Opcodes.CHECKCAST, returnClass); } // ARETURN _assertInsnNode(iterator.next(), Opcodes.ARETURN); } } Assert.assertFalse(iterator.hasNext()); }
From source file:com.lucidtechnics.blackboard.TargetConstructor.java
License:Apache License
private static final byte[] createWrapperObjectByteArray(String _targetName, Class _class) { ClassWriter classWriter = new ClassWriter(true); FieldVisitor fieldVisitor;/*from w w w . ja va 2 s. c o m*/ MethodVisitor methodVisitor; String superClassName = _class.getCanonicalName().replaceAll("\\.", "/"); String[] superClassNameParts = superClassName.split("/"); String simpleClassName = superClassNameParts[superClassNameParts.length - 1]; String blackboardSubClassName = "com/lucidtechnics/blackboard/wrapper/" + superClassName + "Wrapper"; classWriter.visit(Opcodes.V1_5, Opcodes.ACC_PUBLIC + Opcodes.ACC_SUPER, blackboardSubClassName, null, superClassName, new String[] { "com/lucidtechnics/blackboard/Target" }); classWriter.visitSource(simpleClassName, null); { fieldVisitor = classWriter.visitField(Opcodes.ACC_PRIVATE, "blackboardObject", "Ljava/lang/Object;", null, null); fieldVisitor.visitEnd(); } { fieldVisitor = classWriter.visitField(Opcodes.ACC_PRIVATE, "intercepter", "Lcom/lucidtechnics/blackboard/Intercepter;", null, null); fieldVisitor.visitEnd(); } { methodVisitor = classWriter.visitMethod(Opcodes.ACC_PUBLIC, "getBlackboardObject", "()Ljava/lang/Object;", null, null); methodVisitor.visitCode(); methodVisitor.visitVarInsn(Opcodes.ALOAD, 0); methodVisitor.visitFieldInsn(Opcodes.GETFIELD, blackboardSubClassName, "blackboardObject", "Ljava/lang/Object;"); methodVisitor.visitInsn(Opcodes.ARETURN); methodVisitor.visitMaxs(0, 0); methodVisitor.visitEnd(); } { methodVisitor = classWriter.visitMethod(Opcodes.ACC_PUBLIC, "getIntercepter", "()Lcom/lucidtechnics/blackboard/Intercepter;", null, null); methodVisitor.visitCode(); methodVisitor.visitVarInsn(Opcodes.ALOAD, 0); methodVisitor.visitFieldInsn(Opcodes.GETFIELD, blackboardSubClassName, "intercepter", "Lcom/lucidtechnics/blackboard/Intercepter;"); methodVisitor.visitInsn(Opcodes.ARETURN); methodVisitor.visitMaxs(0, 0); methodVisitor.visitEnd(); } { methodVisitor = classWriter.visitMethod(Opcodes.ACC_PUBLIC, "setBlackboardObject", "(Ljava/lang/Object;)V", null, null); methodVisitor.visitCode(); methodVisitor.visitVarInsn(Opcodes.ALOAD, 0); methodVisitor.visitVarInsn(Opcodes.ALOAD, 1); methodVisitor.visitFieldInsn(Opcodes.PUTFIELD, blackboardSubClassName, "blackboardObject", "Ljava/lang/Object;"); methodVisitor.visitInsn(Opcodes.RETURN); methodVisitor.visitMaxs(0, 0); methodVisitor.visitEnd(); } { methodVisitor = classWriter.visitMethod(Opcodes.ACC_PUBLIC, "setIntercepter", "(Lcom/lucidtechnics/blackboard/Intercepter;)V", null, null); methodVisitor.visitCode(); methodVisitor.visitVarInsn(Opcodes.ALOAD, 0); methodVisitor.visitVarInsn(Opcodes.ALOAD, 1); methodVisitor.visitFieldInsn(Opcodes.PUTFIELD, blackboardSubClassName, "intercepter", "Lcom/lucidtechnics/blackboard/Intercepter;"); methodVisitor.visitInsn(Opcodes.RETURN); methodVisitor.visitMaxs(0, 0); methodVisitor.visitEnd(); } { methodVisitor = classWriter.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "()V", null, null); methodVisitor.visitCode(); methodVisitor.visitVarInsn(Opcodes.ALOAD, 0); methodVisitor.visitMethodInsn(Opcodes.INVOKESPECIAL, superClassName, "<init>", "()V"); methodVisitor.visitInsn(Opcodes.RETURN); methodVisitor.visitMaxs(0, 0); methodVisitor.visitEnd(); } List mutatorMethodList = findMutatorMethods(_class); Iterator mutatorMethods = mutatorMethodList.iterator(); while (mutatorMethods.hasNext() == true) { Method method = (Method) mutatorMethods.next(); MethodInfo methodInfo = (MethodInfo) MethodInfoTransformer.getInstance().transform(method); Signature signature = methodInfo.getSignature(); String methodName = signature.getName(); String parameterType = signature.getArgumentTypes()[0].getDescriptor(); String returnType = signature.getReturnType().getDescriptor(); String[] exceptionTypeArray = createExceptionTypeArray(methodInfo.getExceptionTypes()); { methodVisitor = classWriter.visitMethod(Opcodes.ACC_PUBLIC, methodName, "(" + parameterType + ")" + returnType, null, exceptionTypeArray); methodVisitor.visitVarInsn(Opcodes.ALOAD, 0); methodVisitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, blackboardSubClassName, "getIntercepter", "()Lcom/lucidtechnics/blackboard/Intercepter;"); Label l1 = new Label(); methodVisitor.visitJumpInsn(Opcodes.IFNULL, l1); methodVisitor.visitCode(); methodVisitor.visitVarInsn(Opcodes.ALOAD, 0); methodVisitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, blackboardSubClassName, "getIntercepter", "()Lcom/lucidtechnics/blackboard/Intercepter;"); methodVisitor.visitLdcInsn(superClassName); methodVisitor.visitLdcInsn(blackboardSubClassName); methodVisitor.visitLdcInsn(methodName); methodVisitor.visitLdcInsn(_targetName); methodVisitor.visitVarInsn(Opcodes.ALOAD, 0); int tempOpCode = getLoadOpcode(parameterType); methodVisitor.visitVarInsn(tempOpCode, 1); if (tempOpCode == Opcodes.ALOAD) { //this is an object. methodVisitor.visitMethodInsn(Opcodes.INVOKEINTERFACE, "com/lucidtechnics/blackboard/Intercepter", "monitor", "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/Object;Ljava/lang/Object;)V"); } else { //it is a primitive. methodVisitor.visitMethodInsn(Opcodes.INVOKEINTERFACE, "com/lucidtechnics/blackboard/Intercepter", "monitor", "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/Object;" + parameterType + ")V"); } methodVisitor.visitVarInsn(Opcodes.ALOAD, 0); methodVisitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, blackboardSubClassName, "getBlackboardObject", "()Ljava/lang/Object;"); methodVisitor.visitTypeInsn(Opcodes.CHECKCAST, superClassName); methodVisitor.visitVarInsn(getLoadOpcode(parameterType), 1); methodVisitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, superClassName, methodName, "(" + parameterType + ")" + returnType); methodVisitor.visitLabel(l1); methodVisitor.visitInsn(getReturnOpcode(returnType)); methodVisitor.visitMaxs(0, 0); methodVisitor.visitEnd(); } } List otherPublicMethodList = findOtherPublicMethods(_class); Iterator otherPublicMethods = otherPublicMethodList.iterator(); while (otherPublicMethods.hasNext() == true) { Method method = (Method) otherPublicMethods.next(); MethodInfo methodInfo = (MethodInfo) MethodInfoTransformer.getInstance().transform(method); Signature signature = methodInfo.getSignature(); String methodName = signature.getName(); String parameterTypes = constructParameterTypes(signature.getArgumentTypes()); String returnType = signature.getReturnType().getDescriptor(); String[] exceptionTypeArray = createExceptionTypeArray(methodInfo.getExceptionTypes()); if (logger.isDebugEnabled() == true) { logger.debug("Processing method: " + methodName); } if (logger.isDebugEnabled() == true) { logger.debug("Parameter types are: " + parameterTypes); } if ("toString".equalsIgnoreCase(methodName) == false) { methodVisitor = classWriter.visitMethod(Opcodes.ACC_PUBLIC, methodName, "(" + parameterTypes + ")" + returnType, null, exceptionTypeArray); methodVisitor.visitCode(); methodVisitor.visitVarInsn(Opcodes.ALOAD, 0); methodVisitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, blackboardSubClassName, "getBlackboardObject", "()Ljava/lang/Object;"); methodVisitor.visitTypeInsn(Opcodes.CHECKCAST, superClassName); methodVisitor.visitVarInsn(Opcodes.ASTORE, signature.getArgumentTypes().length + 1); methodVisitor.visitVarInsn(Opcodes.ALOAD, signature.getArgumentTypes().length + 1); loadParameters(methodVisitor, signature.getArgumentTypes()); methodVisitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, superClassName, methodName, "(" + parameterTypes + ")" + returnType); methodVisitor.visitInsn(getReturnOpcode(returnType)); methodVisitor.visitMaxs(0, 0); methodVisitor.visitEnd(); } } List protectedMethodList = findProtectedMethods(_class); Iterator protectedMethods = protectedMethodList.iterator(); while (protectedMethods.hasNext() == true) { Method method = (Method) protectedMethods.next(); MethodInfo methodInfo = (MethodInfo) MethodInfoTransformer.getInstance().transform(method); Signature signature = methodInfo.getSignature(); String methodName = signature.getName(); String parameterTypes = constructParameterTypes(signature.getArgumentTypes()); String returnType = signature.getReturnType().getDescriptor(); String[] exceptionTypeArray = createExceptionTypeArray(methodInfo.getExceptionTypes()); if (logger.isDebugEnabled() == true) { logger.debug("Processing method: " + methodName + " and parameter types are: " + parameterTypes); } { methodVisitor = classWriter.visitMethod(Opcodes.ACC_PROTECTED, methodName, "(" + parameterTypes + ")" + returnType, null, exceptionTypeArray); methodVisitor.visitCode(); methodVisitor.visitTypeInsn(Opcodes.NEW, "com/lucidtechnics/blackboard/BlackboardException"); methodVisitor.visitInsn(Opcodes.DUP); methodVisitor.visitLdcInsn("Unable to access protected methods on Blackboard object"); methodVisitor.visitMethodInsn(Opcodes.INVOKESPECIAL, "com/lucidtechnics/blackboard/BlackboardException", "<init>", "(Ljava/lang/String;)V"); methodVisitor.visitInsn(Opcodes.ATHROW); methodVisitor.visitMaxs(0, 0); methodVisitor.visitEnd(); } } { methodVisitor = classWriter.visitMethod(Opcodes.ACC_PUBLIC, "toString", "()Ljava/lang/String;", null, null); methodVisitor.visitCode(); methodVisitor.visitVarInsn(Opcodes.ALOAD, 0); methodVisitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, blackboardSubClassName, "getBlackboardObject", "()Ljava/lang/Object;"); methodVisitor.visitMethodInsn(Opcodes.INVOKESTATIC, "com/lucidtechnics/blackboard/util/Utility", "toString", "(Ljava/lang/Object;)Ljava/lang/String;"); methodVisitor.visitInsn(getReturnOpcode("Ljava/lang/String;")); methodVisitor.visitMaxs(0, 0); methodVisitor.visitEnd(); } classWriter.visitEnd(); if (logger.isDebugEnabled() == true) { logger.debug("Finished creating new class: " + blackboardSubClassName + " for target class: " + superClassName + "."); } return classWriter.toByteArray(); }
From source file:com.mebigfatguy.exagent.StackTraceMethodVisitor.java
License:Apache License
private void injectCallStackPopulation() { // ExAgent.METHOD_INFO.get(); super.visitFieldInsn(Opcodes.GETSTATIC, EXASUPPORT_CLASS_NAME, "METHOD_INFO", signaturizeClass(THREADLOCAL_CLASS_NAME)); super.visitMethodInsn(Opcodes.INVOKEVIRTUAL, THREADLOCAL_CLASS_NAME, "get", "()Ljava/lang/Object;", false); super.visitTypeInsn(Opcodes.CHECKCAST, LIST_CLASS_NAME); super.visitInsn(Opcodes.DUP); super.visitMethodInsn(Opcodes.INVOKEINTERFACE, LIST_CLASS_NAME, "size", "()I", true); super.visitVarInsn(Opcodes.ISTORE, depthLocalSlot); //new MethodInfo(cls, name, parmMap); super.visitTypeInsn(Opcodes.NEW, METHODINFO_CLASS_NAME); super.visitInsn(Opcodes.DUP); super.visitLdcInsn(clsName.replace('.', '/')); super.visitLdcInsn(methodName); if (parms.isEmpty()) { super.visitMethodInsn(Opcodes.INVOKESTATIC, COLLECTIONS_CLASS_NAME, "emptyList", "()Ljava/util/List;", false);//www . j ava 2 s.c o m } else { super.visitTypeInsn(Opcodes.NEW, ARRAYLIST_CLASS_NAME); super.visitInsn(Opcodes.DUP); super.visitIntInsn(Opcodes.BIPUSH, parms.size()); super.visitMethodInsn(Opcodes.INVOKESPECIAL, ARRAYLIST_CLASS_NAME, CTOR_NAME, "(I)V", false); for (Parm parm : parms) { super.visitInsn(Opcodes.DUP); switch (parm.signature) { case "C": super.visitVarInsn(Opcodes.ILOAD, parm.register); super.visitMethodInsn(Opcodes.INVOKESTATIC, STRING_CLASS_NAME, "valueOf", "(C)Ljava/lang/String;", false); break; case "Z": super.visitVarInsn(Opcodes.ILOAD, parm.register); super.visitMethodInsn(Opcodes.INVOKESTATIC, STRING_CLASS_NAME, "valueOf", "(Z)Ljava/lang/String;", false); break; case "B": case "S": case "I": super.visitVarInsn(Opcodes.ILOAD, parm.register); super.visitMethodInsn(Opcodes.INVOKESTATIC, STRING_CLASS_NAME, "valueOf", "(I)Ljava/lang/String;", false); break; case "J": super.visitVarInsn(Opcodes.LLOAD, parm.register); super.visitMethodInsn(Opcodes.INVOKESTATIC, STRING_CLASS_NAME, "valueOf", "(J)Ljava/lang/String;", false); break; case "F": super.visitVarInsn(Opcodes.FLOAD, parm.register); super.visitMethodInsn(Opcodes.INVOKESTATIC, STRING_CLASS_NAME, "valueOf", "(F)Ljava/lang/String;", false); break; case "D": super.visitVarInsn(Opcodes.DLOAD, parm.register); super.visitMethodInsn(Opcodes.INVOKESTATIC, STRING_CLASS_NAME, "valueOf", "(D)Ljava/lang/String;", false); break; default: super.visitVarInsn(Opcodes.ALOAD, parm.register); if (parm.signature.startsWith("[")) { char arrayElemTypeChar = parm.signature.charAt(1); if ((arrayElemTypeChar == 'L') || (arrayElemTypeChar == '[')) { super.visitMethodInsn(Opcodes.INVOKESTATIC, ARRAYS_CLASS_NAME, "toString", "([Ljava/lang/Object;)Ljava/lang/String;", false); } else { super.visitMethodInsn(Opcodes.INVOKESTATIC, ARRAYS_CLASS_NAME, "toString", "([" + arrayElemTypeChar + ")Ljava/lang/String;", false); } } else { super.visitMethodInsn(Opcodes.INVOKESTATIC, STRING_CLASS_NAME, "valueOf", "(Ljava/lang/Object;)Ljava/lang/String;", false); } break; } if (maxParmSize > 0) { super.visitInsn(Opcodes.DUP); super.visitMethodInsn(Opcodes.INVOKEVIRTUAL, STRING_CLASS_NAME, "length", "()I", false); if (maxParmSize <= 127) { super.visitIntInsn(Opcodes.BIPUSH, maxParmSize); } else { super.visitLdcInsn(maxParmSize); } Label falseLabel = new Label(); super.visitJumpInsn(Opcodes.IF_ICMPLE, falseLabel); super.visitIntInsn(Opcodes.BIPUSH, 0); super.visitLdcInsn(maxParmSize); super.visitMethodInsn(Opcodes.INVOKEVIRTUAL, STRING_CLASS_NAME, "substring", "(II)Ljava/lang/String;", false); super.visitLabel(falseLabel); } super.visitMethodInsn(Opcodes.INVOKEINTERFACE, LIST_CLASS_NAME, "add", "(Ljava/lang/Object;)Z", true); super.visitInsn(Opcodes.POP); } } super.visitMethodInsn(Opcodes.INVOKESPECIAL, METHODINFO_CLASS_NAME, CTOR_NAME, "(Ljava/lang/String;Ljava/lang/String;Ljava/util/List;)V", false); //add(methodInfo); super.visitMethodInsn(Opcodes.INVOKEINTERFACE, LIST_CLASS_NAME, "add", "(Ljava/lang/Object;)Z", true); super.visitInsn(Opcodes.POP); }
From source file:com.mebigfatguy.junitflood.jvm.OperandStack.java
License:Apache License
public void performTypeInsn(int opcode, String type) { switch (opcode) { case Opcodes.NEW: { Operand op = new Operand(); op.setSignature(type);/* w ww. j a va 2 s.c o m*/ push(op); } break; case Opcodes.ANEWARRAY: { pop(); Operand op = new Operand(); op.setSignature(type); push(op); } break; case Opcodes.CHECKCAST: //nop break; case Opcodes.INSTANCEOF: { pop(); Operand op = new Operand(); op.setSignature("I"); push(op); } break; } }
From source file:com.mogujie.instantrun.IncrementalChangeVisitor.java
License:Apache License
private void insnMachine(AbstractInsnNode node, List<AbstractInsnNode> removeList) { if (node.getOpcode() == Opcodes.NEW) { if (status == INIT) { status = FIND_NEW;/*from w w w. j ava 2s .co m*/ removeList.add(node); } else { throw new RuntimeException("find new in status " + status); } } if (node.getOpcode() == Opcodes.DUP) { if (status == FIND_NEW) { status = INIT; removeList.add(node); } } if (node.getOpcode() == Opcodes.INVOKESPECIAL && node instanceof MethodInsnNode) { if (status == INIT) { MethodInsnNode methodInsnNode = (MethodInsnNode) node; if ("<init>".equals(methodInsnNode.name)) { if (getMethodAccessRight(methodInsnNode.owner, methodInsnNode.name, methodInsnNode.desc) == AccessRight.PUBLIC) { int removeSize = removeList.size(); removeList.remove(removeSize - 1); removeList.remove(removeSize - 2); } } } } }
From source file:com.navercorp.pinpoint.profiler.instrument.ASMMethodVariables.java
License:Apache License
AbstractInsnNode findInitConstructorInstruction() {
int nested = 0;
for (AbstractInsnNode insnNode = this.methodNode.instructions
.getFirst(); insnNode != null; insnNode = insnNode.getNext()) {
if (insnNode instanceof TypeInsnNode) {
if (insnNode.getOpcode() == Opcodes.NEW) {
// new object().
nested++;//from w w w . j a v a 2 s . c om
}
} else if (insnNode instanceof MethodInsnNode) {
final MethodInsnNode methodInsnNode = (MethodInsnNode) insnNode;
if (methodInsnNode.getOpcode() == Opcodes.INVOKESPECIAL && methodInsnNode.name.equals("<init>")) {
if (--nested < 0) {
// find this() or super().
return insnNode.getNext();
}
}
}
}
return null;
}