List of usage examples for org.objectweb.asm Opcodes ARETURN
int ARETURN
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From source file:com.navercorp.pinpoint.profiler.instrument.ASMMethodVariables.java
License:Apache License
public void storeResultVar(final InsnList instructions, final int opcode) { assertInitializedInterceptorLocalVariables(); if (opcode == Opcodes.RETURN) { // void.// w ww .j ava2s. c om loadNull(instructions); } else if (opcode == Opcodes.ARETURN) { // object. dup(instructions); } else { if (opcode == Opcodes.LRETURN || opcode == Opcodes.DRETURN) { // long or double. dup2(instructions); } else { dup(instructions); } final Type type = Type.getReturnType(this.methodNode.desc); box(instructions, type); } storeVar(instructions, this.resultVarIndex); loadNull(instructions); storeVar(instructions, this.throwableVarIndex); }
From source file:com.navercorp.pinpoint.profiler.instrument.ASMMethodVariables.java
License:Apache License
boolean isReturnCode(final int opcode) { return opcode == Opcodes.IRETURN || opcode == Opcodes.LRETURN || opcode == Opcodes.FRETURN || opcode == Opcodes.DRETURN || opcode == Opcodes.ARETURN || opcode == Opcodes.RETURN; }
From source file:com.nginious.http.serialize.JsonDeserializerCreator.java
License:Apache License
/** * Creates a JSON deserializer for the specified bean class unless a deserializer has already * been created. Created deserializers are cached and returned on subsequent calls to this method. * // ww w .ja v a2 s . c o m * @param <T> class type for bean * @param beanClazz bean class for which a deserializer should be created * @return the created deserializer * @throws SerializerFactoryException if unable to create deserializer or class is not a bean */ @SuppressWarnings("unchecked") protected <T> JsonDeserializer<T> create(Class<T> beanClazz) throws SerializerFactoryException { JsonDeserializer<T> deserializer = (JsonDeserializer<T>) deserializers.get(beanClazz); if (deserializer != null) { return deserializer; } try { synchronized (this) { deserializer = (JsonDeserializer<T>) deserializers.get(beanClazz); if (deserializer != null) { return deserializer; } checkDeserializability(beanClazz, "json"); String intBeanClazzName = Serialization.createInternalClassName(beanClazz); Method[] methods = beanClazz.getMethods(); String intDeserializerClazzName = new StringBuffer(intBeanClazzName).append("JsonDeserializer") .toString(); // Create class ClassWriter writer = new ClassWriter(0); String signature = Serialization .createClassSignature("com/nginious/http/serialize/JsonDeserializer", intBeanClazzName); writer.visit(Opcodes.V1_6, Opcodes.ACC_PUBLIC, intDeserializerClazzName, signature, "com/nginious/http/serialize/JsonDeserializer", null); // Create constructor Serialization.createConstructor(writer, "com/nginious/http/serialize/JsonDeserializer"); // Create deserialize method MethodVisitor visitor = createDeserializeMethod(writer, intBeanClazzName); for (Method method : methods) { Serializable info = method.getAnnotation(Serializable.class); boolean canDeserialize = info == null || (info != null && info.deserialize() && info.types().indexOf("json") > -1); if (canDeserialize && method.getName().startsWith("set") && method.getReturnType().equals(void.class) && method.getParameterTypes().length == 1) { Class<?>[] parameterTypes = method.getParameterTypes(); Class<?> parameterType = parameterTypes[0]; if (parameterType.isArray()) { Class<?> arrayType = parameterType.getComponentType(); if (arrayType.equals(boolean.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeBooleanArray", "[Z", "[Z", intBeanClazzName, method.getName()); } else if (arrayType.equals(double.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeDoubleArray", "[D", "[D", intBeanClazzName, method.getName()); } else if (arrayType.equals(float.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeFloatArray", "[F", "[F", intBeanClazzName, method.getName()); } else if (arrayType.equals(int.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeIntArray", "[I", "[I", intBeanClazzName, method.getName()); } else if (arrayType.equals(long.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeLongArray", "[J", "[J", intBeanClazzName, method.getName()); } else if (arrayType.equals(short.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeShortArray", "[S", "[S", intBeanClazzName, method.getName()); } else if (arrayType.equals(String.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeStringArray", "[Ljava/lang/String;", "[Ljava/lang/String;", intBeanClazzName, method.getName()); } } else if (parameterType.isPrimitive()) { if (parameterType.equals(boolean.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeBoolean", "Z", "Z", intBeanClazzName, method.getName()); } else if (parameterType.equals(double.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeDouble", "D", "D", intBeanClazzName, method.getName()); } else if (parameterType.equals(float.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeFloat", "F", "F", intBeanClazzName, method.getName()); } else if (parameterType.equals(int.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeInt", "I", "I", intBeanClazzName, method.getName()); } else if (parameterType.equals(long.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeLong", "J", "J", intBeanClazzName, method.getName()); } else if (parameterType.equals(short.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeShort", "S", "S", intBeanClazzName, method.getName()); } } else if (parameterType.equals(Calendar.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeCalendar", "Ljava/util/Calendar;", "Ljava/util/Calendar;", intBeanClazzName, method.getName()); } else if (parameterType.equals(Date.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeDate", "Ljava/util/Date;", "Ljava/util/Date;", intBeanClazzName, method.getName()); } else if (parameterType.equals(String.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeString", "Ljava/lang/String;", "Ljava/lang/String;", intBeanClazzName, method.getName()); } } } visitor.visitVarInsn(Opcodes.ALOAD, 3); visitor.visitInsn(Opcodes.ARETURN); visitor.visitMaxs(5, 4); visitor.visitEnd(); writer.visitEnd(); byte[] clazzBytes = writer.toByteArray(); ClassLoader controllerLoader = null; if (classLoader.hasLoaded(beanClazz)) { controllerLoader = beanClazz.getClassLoader(); } else { controllerLoader = this.classLoader; } Class<?> clazz = Serialization.loadClass(controllerLoader, intDeserializerClazzName.replace('/', '.'), clazzBytes); deserializer = (JsonDeserializer<T>) clazz.newInstance(); deserializers.put(beanClazz, deserializer); return deserializer; } } catch (IllegalAccessException e) { throw new SerializerFactoryException(e); } catch (InstantiationException e) { throw new SerializerFactoryException(e); } }
From source file:com.nginious.http.serialize.QueryDeserializerCreator.java
License:Apache License
/** * Creates a query deserializer for the specified bean class unless a deserializer has already * been created. Created deserializers are cached and returned on subsequent calls to this method. * // ww w. j av a2 s . c om * @param <T> class type for bean * @param beanClazz bean class for which a deserializer should be created * @return the created deserializer * @throws SerializerFactoryException if unable to create deserializer or class is not a bean */ @SuppressWarnings("unchecked") protected <T> QueryDeserializer<T> create(Class<T> beanClazz) throws SerializerFactoryException { QueryDeserializer<T> deserializer = (QueryDeserializer<T>) deserializers.get(beanClazz); if (deserializer != null) { return deserializer; } try { synchronized (this) { deserializer = (QueryDeserializer<T>) deserializers.get(beanClazz); if (deserializer != null) { return deserializer; } checkDeserializability(beanClazz, "query"); String intBeanClazzName = Serialization.createInternalClassName(beanClazz); Method[] methods = beanClazz.getMethods(); String intDeserializerClazzName = new StringBuffer(intBeanClazzName).append("QueryDeserializer") .toString(); // Create class ClassWriter writer = new ClassWriter(0); String signature = Serialization.createClassSignature("com/nginious/serialize/QueryDeserializer", intBeanClazzName); writer.visit(Opcodes.V1_6, Opcodes.ACC_PUBLIC, intDeserializerClazzName, signature, "com/nginious/http/serialize/QueryDeserializer", null); // Create constructor Serialization.createConstructor(writer, "com/nginious/http/serialize/QueryDeserializer"); // Create deserialize method MethodVisitor visitor = createDeserializeMethod(writer, intBeanClazzName); for (Method method : methods) { Serializable info = method.getAnnotation(Serializable.class); boolean canDeserialize = info == null || (info != null && info.deserialize() && info.types().indexOf("query") > -1); if (canDeserialize && method.getName().startsWith("set") && method.getReturnType().equals(void.class) && method.getParameterTypes().length == 1) { Class<?>[] parameterTypes = method.getParameterTypes(); Class<?> parameterType = parameterTypes[0]; if (parameterType.isArray()) { Class<?> arrayType = parameterType.getComponentType(); if (arrayType.equals(boolean.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeBooleanArray", "[Z", "[Z", intBeanClazzName, method.getName()); } else if (arrayType.equals(double.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeDoubleArray", "[D", "[D", intBeanClazzName, method.getName()); } else if (arrayType.equals(float.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeFloatArray", "[F", "[F", intBeanClazzName, method.getName()); } else if (arrayType.equals(int.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeIntArray", "[I", "[I", intBeanClazzName, method.getName()); } else if (arrayType.equals(long.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeLongArray", "[J", "[J", intBeanClazzName, method.getName()); } else if (arrayType.equals(short.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeShortArray", "[S", "[S", intBeanClazzName, method.getName()); } else if (arrayType.equals(String.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeStringArray", "[Ljava/lang/String;", "[Ljava/lang/String;", intBeanClazzName, method.getName()); } } else if (parameterType.isPrimitive()) { if (parameterType.equals(boolean.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeBoolean", "Z", "Z", intBeanClazzName, method.getName()); } else if (parameterType.equals(double.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeDouble", "D", "D", intBeanClazzName, method.getName()); } else if (parameterType.equals(float.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeFloat", "F", "F", intBeanClazzName, method.getName()); } else if (parameterType.equals(int.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeInt", "I", "I", intBeanClazzName, method.getName()); } else if (parameterType.equals(long.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeLong", "J", "J", intBeanClazzName, method.getName()); } else if (parameterType.equals(short.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeShort", "S", "S", intBeanClazzName, method.getName()); } } else if (parameterType.equals(Calendar.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeCalendar", "Ljava/util/Calendar;", "Ljava/util/Calendar;", intBeanClazzName, method.getName()); } else if (parameterType.equals(Date.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeDate", "Ljava/util/Date;", "Ljava/util/Date;", intBeanClazzName, method.getName()); } else if (parameterType.equals(String.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeString", "Ljava/lang/String;", "Ljava/lang/String;", intBeanClazzName, method.getName()); } } } visitor.visitVarInsn(Opcodes.ALOAD, 3); visitor.visitInsn(Opcodes.ARETURN); visitor.visitMaxs(5, 4); visitor.visitEnd(); writer.visitEnd(); byte[] clazzBytes = writer.toByteArray(); ClassLoader controllerLoader = null; if (classLoader.hasLoaded(beanClazz)) { controllerLoader = beanClazz.getClassLoader(); } else { controllerLoader = this.classLoader; } Class<?> clazz = Serialization.loadClass(controllerLoader, intDeserializerClazzName.replace('/', '.'), clazzBytes); deserializer = (QueryDeserializer<T>) clazz.newInstance(); deserializers.put(beanClazz, deserializer); return deserializer; } } catch (IllegalAccessException e) { throw new SerializerFactoryException(e); } catch (InstantiationException e) { throw new SerializerFactoryException(e); } }
From source file:com.nginious.http.serialize.XmlDeserializerCreator.java
License:Apache License
/** * Creates a XML deserializer for the specified bean class unless a deserializer has already * been created. Created deserializers are cached and returned on subsequent calls to this method. * //from w w w .ja v a 2 s . c o m * @param <T> class type for bean * @param beanClazz bean class for which a deserializer should be created * @return the created deserializer * @throws SerializerFactoryException if unable to create deserializer or class is not a bean */ @SuppressWarnings("unchecked") protected <T> XmlDeserializer<T> create(Class<T> beanClazz) throws SerializerFactoryException { XmlDeserializer<T> deserializer = (XmlDeserializer<T>) deserializers.get(beanClazz); if (deserializer != null) { return deserializer; } try { synchronized (this) { deserializer = (XmlDeserializer<T>) deserializers.get(beanClazz); if (deserializer != null) { return deserializer; } checkDeserializability(beanClazz, "xml"); String intBeanClazzName = Serialization.createInternalClassName(beanClazz); Method[] methods = beanClazz.getMethods(); String intDeserializerClazzName = new StringBuffer(intBeanClazzName).append("XmlDeserializer") .toString(); // Create class ClassWriter writer = new ClassWriter(0); String signature = Serialization.createClassSignature("com/nginious/http/serialize/XmlDeserializer", intBeanClazzName); writer.visit(Opcodes.V1_6, Opcodes.ACC_PUBLIC, intDeserializerClazzName, signature, "com/nginious/http/serialize/XmlDeserializer", null); // Create constructor Serialization.createConstructor(writer, "com/nginious/http/serialize/XmlDeserializer"); // Create deserialize method MethodVisitor visitor = createDeserializeMethod(writer, intBeanClazzName); for (Method method : methods) { Serializable info = method.getAnnotation(Serializable.class); boolean canDeserialize = info == null || (info != null && info.deserialize() && info.types().indexOf("xml") > -1); if (canDeserialize && method.getName().startsWith("set") && method.getReturnType().equals(void.class) && method.getParameterTypes().length == 1) { Class<?>[] parameterTypes = method.getParameterTypes(); Class<?> parameterType = parameterTypes[0]; if (parameterType.isArray()) { Class<?> arrayType = parameterType.getComponentType(); if (arrayType.equals(boolean.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeBooleanArray", "[Z", "[Z", intBeanClazzName, method.getName()); } else if (arrayType.equals(double.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeDoubleArray", "[D", "[D", intBeanClazzName, method.getName()); } else if (arrayType.equals(float.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeFloatArray", "[F", "[F", intBeanClazzName, method.getName()); } else if (arrayType.equals(int.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeIntArray", "[I", "[I", intBeanClazzName, method.getName()); } else if (arrayType.equals(long.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeLongArray", "[J", "[J", intBeanClazzName, method.getName()); } else if (arrayType.equals(short.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeShortArray", "[S", "[S", intBeanClazzName, method.getName()); } else if (arrayType.equals(String.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeStringArray", "[Ljava/lang/String;", "[Ljava/lang/String;", intBeanClazzName, method.getName()); } } else if (parameterType.isPrimitive()) { if (parameterType.equals(boolean.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeBoolean", "Z", "Z", intBeanClazzName, method.getName()); } else if (parameterType.equals(double.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeDouble", "D", "D", intBeanClazzName, method.getName()); } else if (parameterType.equals(float.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeFloat", "F", "F", intBeanClazzName, method.getName()); } else if (parameterType.equals(int.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeInt", "I", "I", intBeanClazzName, method.getName()); } else if (parameterType.equals(long.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeLong", "J", "J", intBeanClazzName, method.getName()); } else if (parameterType.equals(short.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeShort", "S", "S", intBeanClazzName, method.getName()); } } else if (parameterType.equals(Calendar.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeCalendar", "Ljava/util/Calendar;", "Ljava/util/Calendar;", intBeanClazzName, method.getName()); } else if (parameterType.equals(Date.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeDate", "Ljava/util/Date;", "Ljava/util/Date;", intBeanClazzName, method.getName()); } else if (parameterType.equals(String.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeString", "Ljava/lang/String;", "Ljava/lang/String;", intBeanClazzName, method.getName()); } } } visitor.visitVarInsn(Opcodes.ALOAD, 3); visitor.visitInsn(Opcodes.ARETURN); visitor.visitMaxs(5, 4); visitor.visitEnd(); writer.visitEnd(); byte[] clazzBytes = writer.toByteArray(); ClassLoader controllerLoader = null; if (classLoader.hasLoaded(beanClazz)) { controllerLoader = beanClazz.getClassLoader(); } else { controllerLoader = this.classLoader; } Class<?> clazz = Serialization.loadClass(controllerLoader, intDeserializerClazzName.replace('/', '.'), clazzBytes); deserializer = (XmlDeserializer<T>) clazz.newInstance(); deserializers.put(beanClazz, deserializer); return deserializer; } } catch (IllegalAccessException e) { throw new SerializerFactoryException(e); } catch (InstantiationException e) { throw new SerializerFactoryException(e); } }
From source file:com.nginious.http.xsp.expr.ExpressionCompiler.java
License:Apache License
/** * Creates a compiled expression from the specified tree value node expression. The class bytecode for the * compiled expression is generated at runtime. * /*from w ww . j a v a 2s .c o m*/ * @param uncompiled the uncompiled tree value node expression * @return the compiled expression * @throws ExpressionException if unable to compile expression */ public Expression compile(TreeExpression uncompiled) throws ExpressionException { ClassWriter writer = new ClassWriter(0); // Create class String className = classBaseName + classNameCounter.getAndIncrement(); String classIdentifier = className.replace('.', '/'); writer.visit(Opcodes.V1_6, Opcodes.ACC_PUBLIC, classIdentifier, "L" + classIdentifier + ";", "com/nginious/http/xsp/expr/Expression", null); // Create constructor MethodVisitor visitor = writer.visitMethod(Opcodes.ACC_PROTECTED, "<init>", "()V", null, null); visitor.visitCode(); visitor.visitVarInsn(Opcodes.ALOAD, 0); visitor.visitMethodInsn(Opcodes.INVOKESPECIAL, "com/nginious/http/xsp/expr/Expression", "<init>", "()V"); visitor.visitInsn(Opcodes.RETURN); visitor.visitMaxs(1, 1); visitor.visitEnd(); // protected abstract boolean evaluateBoolean(); visitor = writer.visitMethod(Opcodes.ACC_PROTECTED, "evaluateBoolean", "()Z", null, null); if (uncompiled.getType() == Type.BOOLEAN) { uncompiled.compile(visitor); } else if (uncompiled.getType() == Type.DOUBLE) { visitor.visitVarInsn(Opcodes.ALOAD, 0); // this visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, classIdentifier, "evaluateDouble", "()D"); Label endLabel = new Label(); Label falseLabel = new Label(); visitor.visitLdcInsn(0.0d); visitor.visitInsn(Opcodes.DCMPL); visitor.visitJumpInsn(Opcodes.IFEQ, falseLabel); visitor.visitLdcInsn(true); visitor.visitJumpInsn(Opcodes.GOTO, endLabel); visitor.visitLabel(falseLabel); visitor.visitLdcInsn(false); visitor.visitLabel(endLabel); } else if (uncompiled.getType() == Type.INT) { visitor.visitVarInsn(Opcodes.ALOAD, 0); // this visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, classIdentifier, "evaluateInt", "()I"); Label endLabel = new Label(); Label falseLabel = new Label(); visitor.visitLdcInsn(0); visitor.visitJumpInsn(Opcodes.IFNE, falseLabel); visitor.visitLdcInsn(true); visitor.visitJumpInsn(Opcodes.GOTO, endLabel); visitor.visitLabel(falseLabel); visitor.visitLdcInsn(false); visitor.visitLabel(endLabel); } else if (uncompiled.getType() == Type.STRING) { visitor.visitVarInsn(Opcodes.ALOAD, 0); // this visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, classIdentifier, "evaluateString", "()Ljava/lang/String;"); visitor.visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/Boolean", "parseBoolean", "(Ljava/lang/String;)Z"); } visitor.visitInsn(Opcodes.IRETURN); visitor.visitMaxs(5, 5); visitor.visitEnd(); // protected abstract int evaluateInt(); visitor = writer.visitMethod(Opcodes.ACC_PROTECTED, "evaluateInt", "()I", null, null); if (uncompiled.getType() == Type.BOOLEAN) { visitor.visitVarInsn(Opcodes.ALOAD, 0); // this visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, classIdentifier, "evaluateBoolean", "()Z"); Label endLabel = new Label(); Label falseLabel = new Label(); visitor.visitJumpInsn(Opcodes.IFEQ, falseLabel); visitor.visitLdcInsn(1); visitor.visitJumpInsn(Opcodes.GOTO, endLabel); visitor.visitLabel(falseLabel); visitor.visitLdcInsn(0); visitor.visitLabel(endLabel); } else if (uncompiled.getType() == Type.DOUBLE) { visitor.visitVarInsn(Opcodes.ALOAD, 0); // this visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, classIdentifier, "evaluateDouble", "()D"); visitor.visitInsn(Opcodes.D2I); } else if (uncompiled.getType() == Type.INT) { uncompiled.compile(visitor); } else if (uncompiled.getType() == Type.STRING) { visitor.visitVarInsn(Opcodes.ALOAD, 0); // this visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, classIdentifier, "evaluateString", "()Ljava/lang/String;"); visitor.visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/Integer", "parseInt", "(Ljava/lang/String;)I"); } visitor.visitInsn(Opcodes.IRETURN); visitor.visitMaxs(5, 5); visitor.visitEnd(); // protected abstract double evaluateDouble(); visitor = writer.visitMethod(Opcodes.ACC_PROTECTED, "evaluateDouble", "()D", null, null); if (uncompiled.getType() == Type.BOOLEAN) { visitor.visitVarInsn(Opcodes.ALOAD, 0); // this visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, classIdentifier, "evaluateBoolean", "()Z"); Label endLabel = new Label(); Label falseLabel = new Label(); visitor.visitJumpInsn(Opcodes.IFEQ, falseLabel); visitor.visitLdcInsn(1.0d); visitor.visitJumpInsn(Opcodes.GOTO, endLabel); visitor.visitLabel(falseLabel); visitor.visitLdcInsn(0.0d); visitor.visitLabel(endLabel); } else if (uncompiled.getType() == Type.DOUBLE) { uncompiled.compile(visitor); } else if (uncompiled.getType() == Type.INT) { visitor.visitVarInsn(Opcodes.ALOAD, 0); // this visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, classIdentifier, "evaluateInt", "()I"); visitor.visitInsn(Opcodes.I2D); } else if (uncompiled.getType() == Type.STRING) { visitor.visitVarInsn(Opcodes.ALOAD, 0); // this visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, classIdentifier, "evaluateString", "()Ljava/lang/String;"); visitor.visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/Double", "parseDouble", "(Ljava/lang/String;)D"); } visitor.visitInsn(Opcodes.DRETURN); visitor.visitMaxs(5, 5); visitor.visitEnd(); // protected abstract String evaluateString(); visitor = writer.visitMethod(Opcodes.ACC_PROTECTED, "evaluateString", "()Ljava/lang/String;", null, null); if (uncompiled.getType() == Type.BOOLEAN) { visitor.visitVarInsn(Opcodes.ALOAD, 0); // this visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, classIdentifier, "evaluateBoolean", "()Z"); visitor.visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/Boolean", "toString", "(Z)Ljava/lang/String;"); } else if (uncompiled.getType() == Type.DOUBLE) { visitor.visitVarInsn(Opcodes.ALOAD, 0); // this visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, classIdentifier, "evaluateDouble", "()D"); visitor.visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/Double", "toString", "(D)Ljava/lang/String;"); } else if (uncompiled.getType() == Type.INT) { visitor.visitVarInsn(Opcodes.ALOAD, 0); // this visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, classIdentifier, "evaluateInt", "()I"); visitor.visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/Integer", "toString", "(I)Ljava/lang/String;"); } else if (uncompiled.getType() == Type.STRING) { uncompiled.compile(visitor); } visitor.visitInsn(Opcodes.ARETURN); visitor.visitMaxs(6, 6); visitor.visitEnd(); // public abstract Type getType(); visitor = writer.visitMethod(Opcodes.ACC_PUBLIC, "getType", "()Lcom/nginious/http/xsp/expr/Type;", null, null); if (uncompiled.getType() == Type.BOOLEAN) { visitor.visitFieldInsn(Opcodes.GETSTATIC, "com/nginious/http/xsp/expr/Type", "BOOLEAN", "Lcom/nginious/http/xsp/expr/Type;"); visitor.visitInsn(Opcodes.ARETURN); } else if (uncompiled.getType() == Type.DOUBLE) { visitor.visitFieldInsn(Opcodes.GETSTATIC, "com/nginious/http/xsp/expr/Type", "DOUBLE", "Lcom/nginious/http/xsp/expr/Type;"); visitor.visitInsn(Opcodes.ARETURN); } else if (uncompiled.getType() == Type.INT) { visitor.visitFieldInsn(Opcodes.GETSTATIC, "com/nginious/http/xsp/expr/Type", "INT", "Lcom/nginious/http/xsp/expr/Type;"); visitor.visitInsn(Opcodes.ARETURN); } else if (uncompiled.getType() == Type.STRING) { visitor.visitFieldInsn(Opcodes.GETSTATIC, "com/nginious/http/xsp/expr/Type", "STRING", "Lcom/nginious/http/xsp/expr/Type;"); visitor.visitInsn(Opcodes.ARETURN); } visitor.visitMaxs(1, 1); visitor.visitEnd(); try { writer.visitEnd(); byte[] clazzBytes = writer.toByteArray(); Class<?> clazz = loadClass(className, clazzBytes); return (Expression) clazz.newInstance(); } catch (Exception e) { throw new ExpressionException("Can't instantiate compiled expression", e); } }
From source file:com.nway.spring.jdbc.bean.AsmBeanProcessor.java
License:Apache License
/** * * /* w w w . j a v a 2s .c o m*/ * * @param mv MethodVisitor * @param processorName com/nway/commons/dbutils/DynamicBeanProcessorImpl * @param beanName com/nway/commons/dbutils/test/User */ private void endScript(MethodVisitor mv, Label processorLabel, Label beanStart, int lineNumber, String processorName, String beanName) { Label l10 = new Label(); mv.visitLabel(l10); mv.visitLineNumber(lineNumber, l10); mv.visitVarInsn(Opcodes.ALOAD, 3); mv.visitInsn(Opcodes.ARETURN); Label l11 = new Label(); mv.visitLabel(l11); mv.visitLocalVariable("this", "L" + processorName + ";", null, processorLabel, l11, 0); mv.visitLocalVariable("rs", "Ljava/sql/ResultSet;", null, processorLabel, l11, 1); mv.visitLocalVariable("type", "Ljava/lang/Class;", "Ljava/lang/Class<TT;>;", processorLabel, l11, 2); mv.visitLocalVariable("bean", "L" + beanName + ";", null, beanStart, l11, 3); mv.visitMaxs(5, 4); mv.visitEnd(); }
From source file:com.offbynull.coroutines.instrumenter.asm.InstructionUtils.java
License:Open Source License
/** * Generates instructions that returns a dummy value. Return values are as follows: * <ul>/*from w w w. j ava2 s. c om*/ * <li>void -> no value</li> * <li>boolean -> false</li> * <li>byte/short/char/int -> 0</li> * <li>long -> 0L</li> * <li>float -> 0.0f</li> * <li>double -> 0.0</li> * <li>Object -> null</li> * </ul> * * @param returnType return type of the method this generated bytecode is for * @return instructions to return a dummy value * @throws NullPointerException if any argument is {@code null} * @throws IllegalArgumentException if {@code returnType}'s sort is of {@link Type#METHOD} */ public static InsnList returnDummy(Type returnType) { Validate.notNull(returnType); Validate.isTrue(returnType.getSort() != Type.METHOD); InsnList ret = new InsnList(); switch (returnType.getSort()) { case Type.VOID: ret.add(new InsnNode(Opcodes.RETURN)); break; case Type.BOOLEAN: case Type.BYTE: case Type.SHORT: case Type.CHAR: case Type.INT: ret.add(new InsnNode(Opcodes.ICONST_0)); ret.add(new InsnNode(Opcodes.IRETURN)); break; case Type.LONG: ret.add(new InsnNode(Opcodes.LCONST_0)); ret.add(new InsnNode(Opcodes.LRETURN)); break; case Type.FLOAT: ret.add(new InsnNode(Opcodes.FCONST_0)); ret.add(new InsnNode(Opcodes.FRETURN)); break; case Type.DOUBLE: ret.add(new InsnNode(Opcodes.DCONST_0)); ret.add(new InsnNode(Opcodes.DRETURN)); break; case Type.OBJECT: case Type.ARRAY: ret.add(new InsnNode(Opcodes.ACONST_NULL)); ret.add(new InsnNode(Opcodes.ARETURN)); break; default: throw new IllegalStateException(); } return ret; }
From source file:com.offbynull.coroutines.instrumenter.asm.InstructionUtils.java
License:Open Source License
/** * Generates instructions that returns a value. * * @param returnType return type of the method this generated bytecode is for * @param returnValueInsnList instructions that produce the return value (should leave it on the top of the stack) * @return instructions to return a value * @throws NullPointerException if any argument is {@code null} * @throws IllegalArgumentException if {@code returnType}'s sort is of {@link Type#METHOD} *//* w w w. j ava 2 s .co m*/ public static InsnList returnValue(Type returnType, InsnList returnValueInsnList) { Validate.notNull(returnType); Validate.isTrue(returnType.getSort() != Type.METHOD); InsnList ret = new InsnList(); ret.add(returnValueInsnList); switch (returnType.getSort()) { case Type.VOID: ret.add(new InsnNode(Opcodes.RETURN)); break; case Type.BOOLEAN: case Type.BYTE: case Type.SHORT: case Type.CHAR: case Type.INT: ret.add(new InsnNode(Opcodes.IRETURN)); break; case Type.LONG: ret.add(new InsnNode(Opcodes.LRETURN)); break; case Type.FLOAT: ret.add(new InsnNode(Opcodes.FRETURN)); break; case Type.DOUBLE: ret.add(new InsnNode(Opcodes.DRETURN)); break; case Type.OBJECT: case Type.ARRAY: ret.add(new InsnNode(Opcodes.ARETURN)); break; default: throw new IllegalStateException(); } return ret; }
From source file:com.offbynull.coroutines.instrumenter.ContinuationGenerators.java
License:Open Source License
/** * Generates instructions that returns a dummy value. Return values are as follows: * <ul>// w w w .j av a 2 s . co m * <li>void -> no value</li> * <li>boolean -> false</li> * <li>byte/short/char/int -> 0</li> * <li>long -> 0L</li> * <li>float -> 0.0f</li> * <li>double -> 0.0</li> * <li>Object -> null</li> * </ul> * * @param returnType return type of the method this generated bytecode is for * @return instructions to return a dummy value * @throws NullPointerException if any argument is {@code null} * @throws IllegalArgumentException if {@code returnType}'s sort is of {@link Type#METHOD} */ private static InsnList returnDummy(Type returnType) { Validate.notNull(returnType); Validate.isTrue(returnType.getSort() != Type.METHOD); InsnList ret = new InsnList(); switch (returnType.getSort()) { case Type.VOID: ret.add(new InsnNode(Opcodes.RETURN)); break; case Type.BOOLEAN: case Type.BYTE: case Type.SHORT: case Type.CHAR: case Type.INT: ret.add(new InsnNode(Opcodes.ICONST_0)); ret.add(new InsnNode(Opcodes.IRETURN)); break; case Type.LONG: ret.add(new InsnNode(Opcodes.LCONST_0)); ret.add(new InsnNode(Opcodes.LRETURN)); break; case Type.FLOAT: ret.add(new InsnNode(Opcodes.FCONST_0)); ret.add(new InsnNode(Opcodes.FRETURN)); break; case Type.DOUBLE: ret.add(new InsnNode(Opcodes.DCONST_0)); ret.add(new InsnNode(Opcodes.DRETURN)); break; case Type.OBJECT: case Type.ARRAY: ret.add(new InsnNode(Opcodes.ACONST_NULL)); ret.add(new InsnNode(Opcodes.ARETURN)); break; default: throw new IllegalStateException(); } return ret; }