List of usage examples for org.objectweb.asm MethodVisitor visitMethodInsn
@Deprecated public void visitMethodInsn(final int opcode, final String owner, final String name, final String descriptor)
From source file:com.googlecode.ddom.weaver.asm.MethodVisitorTee.java
License:Apache License
public void visitMethodInsn(int opcode, String owner, String name, String desc) { for (MethodVisitor visitor : visitors) { visitor.visitMethodInsn(opcode, owner, name, desc); }// w w w .jav a 2 s . c o m }
From source file:com.googlecode.ddom.weaver.compound.CompoundClassGenerator.java
License:Apache License
@Override public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) { MethodVisitor mv = cv.visitMethod(Opcodes.ACC_PUBLIC, name, desc, signature, exceptions); if (mv != null) { Type[] argumentTypes = Type.getArgumentTypes(desc); mv.visitCode();//from www . ja v a2 s .c om Label l0 = new Label(); mv.visitLabel(l0); for (int i = 0; i < componentClasses.length; i++) { String componentClass = Util.classNameToInternalName(componentClasses[i]); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitFieldInsn(Opcodes.GETFIELD, className, "c" + i, "L" + componentClass + ";"); for (int j = 0; j < argumentTypes.length; j++) { mv.visitVarInsn(argumentTypes[j].getOpcode(Opcodes.ILOAD), j + 1); } mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, ifaceName, name, desc); } mv.visitInsn(Opcodes.RETURN); Label l1 = new Label(); mv.visitLabel(l1); mv.visitLocalVariable("this", "L" + className + ";", null, l0, l1, 0); mv.visitMaxs(argumentTypes.length + 1, argumentTypes.length + 1); mv.visitEnd(); } return null; }
From source file:com.googlecode.ddom.weaver.compound.CompoundClassGenerator.java
License:Apache License
@Override public void visitEnd() { for (int i = 0; i < componentClasses.length; i++) { String componentClass = Util.classNameToInternalName(componentClasses[i]); FieldVisitor fv = cv.visitField(Opcodes.ACC_PRIVATE, "c" + i, "L" + componentClass + ";", null, null); if (fv != null) { fv.visitEnd();/*from w w w . j a va 2s . c o m*/ } } MethodVisitor mv = cv.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "()V", null, null); if (mv != null) { mv.visitCode(); Label l0 = new Label(); mv.visitLabel(l0); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/Object", "<init>", "()V"); for (int i = 0; i < componentClasses.length; i++) { String componentClass = Util.classNameToInternalName(componentClasses[i]); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitTypeInsn(Opcodes.NEW, componentClass); mv.visitInsn(Opcodes.DUP); mv.visitMethodInsn(Opcodes.INVOKESPECIAL, componentClass, "<init>", "()V"); mv.visitFieldInsn(Opcodes.PUTFIELD, className, "c" + i, "L" + componentClass + ";"); } mv.visitInsn(Opcodes.RETURN); Label l1 = new Label(); mv.visitLabel(l1); mv.visitLocalVariable("this", "L" + className + ";", null, l0, l1, 0); mv.visitMaxs(3, 1); mv.visitEnd(); } cv.visitEnd(); }
From source file:com.googlecode.ddom.weaver.ext.ModelExtensionClass.java
License:Apache License
public void accept(ClassVisitor classVisitor) { ImplementationInfo implementationInfo = info.getImplementation().get(ImplementationInfo.class); String name = Util.classNameToInternalName(info.getClassName()); String superName = Util.classNameToInternalName(info.getSuperClassName()); classVisitor.visit(Opcodes.V1_5,/*from ww w. j av a 2 s . c om*/ info.isAbstract() ? Opcodes.ACC_PUBLIC | Opcodes.ACC_ABSTRACT : Opcodes.ACC_PUBLIC, name, null, superName, new String[] { Util.classNameToInternalName(info.getExtensionInterface().getClassInfo().getName()) }); for (ConstructorInfo constructor : implementationInfo.getConstructors()) { MethodVisitor mv = classVisitor.visitMethod(Opcodes.ACC_PUBLIC, "<init>", constructor.getDescriptor(), constructor.getSignature(), constructor.getExceptions()); if (mv != null) { mv.visitCode(); Label l0 = new Label(); mv.visitLabel(l0); mv.visitVarInsn(Opcodes.ALOAD, 0); Type[] argumentTypes = constructor.getArgumentTypes(); for (int i = 0; i < argumentTypes.length; i++) { mv.visitVarInsn(argumentTypes[i].getOpcode(Opcodes.ILOAD), i + 1); } mv.visitMethodInsn(Opcodes.INVOKESPECIAL, superName, "<init>", constructor.getDescriptor()); mv.visitInsn(Opcodes.RETURN); Label l1 = new Label(); mv.visitLabel(l1); mv.visitLocalVariable("this", "L" + name + ";", null, l0, l1, 0); for (int i = 0; i < argumentTypes.length; i++) { mv.visitLocalVariable("arg" + i, argumentTypes[i].getDescriptor(), null, l0, l1, i + 1); } mv.visitMaxs(argumentTypes.length + 1, argumentTypes.length + 1); mv.visitEnd(); } } classVisitor.visitEnd(); }
From source file:com.googlecode.ddom.weaver.ext.ModelExtensionFactoryDelegateImplementation.java
License:Apache License
public void accept(ClassVisitor classVisitor) { String factoryName = Util .classNameToInternalName(modelExtensionClassInfo.getFactoryDelegateImplementationClassName()); classVisitor.visit(Opcodes.V1_5, Opcodes.ACC_PUBLIC, factoryName, null, "java/lang/Object", new String[] { Util.classNameToInternalName(implementationInfo.getFactoryDelegateInterfaceName()) }); String className = Util.classNameToInternalName(modelExtensionClassInfo.getClassName()); {/*w ww.ja v a2 s . c o m*/ MethodVisitor mv = classVisitor.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "()V", null, null); if (mv != null) { mv.visitCode(); Label l0 = new Label(); mv.visitLabel(l0); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/Object", "<init>", "()V"); mv.visitInsn(Opcodes.RETURN); Label l1 = new Label(); mv.visitLabel(l1); mv.visitLocalVariable("this", "L" + className + ";", null, l0, l1, 0); mv.visitMaxs(1, 1); mv.visitEnd(); } } for (ConstructorInfo constructor : implementationInfo.getConstructors()) { MethodVisitor mv = classVisitor.visitMethod(Opcodes.ACC_PUBLIC, "create", constructor.getFactoryDelegateMethodDescriptor(), constructor.getSignature(), constructor.getExceptions()); if (mv != null) { mv.visitCode(); Label l0 = new Label(); mv.visitLabel(l0); mv.visitTypeInsn(Opcodes.NEW, className); mv.visitInsn(Opcodes.DUP); Type[] argumentTypes = constructor.getArgumentTypes(); for (int i = 0; i < argumentTypes.length; i++) { mv.visitVarInsn(argumentTypes[i].getOpcode(Opcodes.ILOAD), i + 1); } mv.visitMethodInsn(Opcodes.INVOKESPECIAL, className, "<init>", constructor.getDescriptor()); mv.visitInsn(Opcodes.ARETURN); Label l1 = new Label(); mv.visitLabel(l1); mv.visitLocalVariable("this", "L" + factoryName + ";", null, l0, l1, 0); for (int i = 0; i < argumentTypes.length; i++) { mv.visitLocalVariable("arg" + i, argumentTypes[i].getDescriptor(), null, l0, l1, i + 1); } mv.visitMaxs(argumentTypes.length + 2, argumentTypes.length + 1); mv.visitEnd(); } } classVisitor.visitEnd(); }
From source file:com.googlecode.ddom.weaver.ext.ModelExtensionFactoryImplementation.java
License:Apache License
public void accept(ClassVisitor classVisitor) { // Note: the name chosen here must match what is expected in ExtensionFactoryLocator String name = Util.classNameToInternalName(implementationInfo.getFactoryInterface().getName() + "$$Impl"); String factoryInterfaceName = Util .classNameToInternalName(implementationInfo.getFactoryInterface().getName()); classVisitor.visit(Opcodes.V1_5, Opcodes.ACC_PUBLIC, name, null, "java/lang/Object", new String[] { factoryInterfaceName }); {//from w w w.ja v a 2 s. co m FieldVisitor fw = classVisitor.visitField(Opcodes.ACC_PUBLIC | Opcodes.ACC_FINAL | Opcodes.ACC_STATIC, "INSTANCE", "L" + factoryInterfaceName + ";", null, null); if (fw != null) { fw.visitEnd(); } } { FieldVisitor fw = classVisitor.visitField(Opcodes.ACC_PRIVATE | Opcodes.ACC_FINAL, "delegates", "Ljava/util/Map;", null, null); if (fw != null) { fw.visitEnd(); } } { MethodVisitor mv = classVisitor.visitMethod(Opcodes.ACC_PRIVATE, "<init>", "()V", null, null); if (mv != null) { mv.visitCode(); Label l0 = new Label(); mv.visitLabel(l0); // Call constructor from superclass mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/Object", "<init>", "()V"); // Create delegates map mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitTypeInsn(Opcodes.NEW, "java/util/HashMap"); mv.visitInsn(Opcodes.DUP); mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/util/HashMap", "<init>", "()V"); mv.visitFieldInsn(Opcodes.PUTFIELD, name, "delegates", "Ljava/util/Map;"); // Populate delegates map for (ModelExtensionInfo modelExtensionInfo : implementationInfo.getModelExtensions()) { for (ModelExtensionInterfaceInfo extensionInterface : modelExtensionInfo .getExtensionInterfaces()) { if (!extensionInterface.isAbstract()) { // TODO: this is stupid; we should not recreate the info object here ModelExtensionClassInfo modelExtensionClassInfo = new ModelExtensionClassInfo( implementationInfo.getImplementation(), modelExtensionInfo.getRootInterface(), extensionInterface); String factoryDelegateImplName = Util.classNameToInternalName( modelExtensionClassInfo.getFactoryDelegateImplementationClassName()); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitFieldInsn(Opcodes.GETFIELD, name, "delegates", "Ljava/util/Map;"); mv.visitLdcInsn(Type.getObjectType(Util.classNameToInternalName( modelExtensionClassInfo.getExtensionInterface().getClassInfo().getName()))); mv.visitTypeInsn(Opcodes.NEW, factoryDelegateImplName); mv.visitInsn(Opcodes.DUP); mv.visitMethodInsn(Opcodes.INVOKESPECIAL, factoryDelegateImplName, "<init>", "()V"); mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/Map", "put", "(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;"); mv.visitInsn(Opcodes.POP); } } } mv.visitInsn(Opcodes.RETURN); Label l1 = new Label(); mv.visitLabel(l1); mv.visitLocalVariable("this", "L" + name + ";", null, l0, l1, 0); mv.visitMaxs(4, 1); mv.visitEnd(); } } String factoryDelegateInterfaceName = Util .classNameToInternalName(implementationInfo.getFactoryDelegateInterfaceName()); String getDelegateDesc = "(Ljava/lang/Class;)L" + factoryDelegateInterfaceName + ";"; { MethodVisitor mv = classVisitor.visitMethod(Opcodes.ACC_PRIVATE, "getDelegate", getDelegateDesc, null, null); if (mv != null) { mv.visitCode(); Label l0 = new Label(); mv.visitLabel(l0); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitFieldInsn(Opcodes.GETFIELD, name, "delegates", "Ljava/util/Map;"); mv.visitVarInsn(Opcodes.ALOAD, 1); mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/Map", "get", "(Ljava/lang/Object;)Ljava/lang/Object;"); mv.visitTypeInsn(Opcodes.CHECKCAST, factoryDelegateInterfaceName); mv.visitInsn(Opcodes.ARETURN); Label l1 = new Label(); mv.visitLabel(l1); mv.visitLocalVariable("this", "L" + name + ";", null, l0, l1, 0); mv.visitLocalVariable("extensionInterface", "Ljava/lang/Class;", null, l0, l1, 1); mv.visitMaxs(2, 2); mv.visitEnd(); } } String implementationName = Util.classNameToInternalName(implementationInfo.getImplementation().getName()); for (ConstructorInfo constructor : implementationInfo.getConstructors()) { Type[] constructorArgumentTypes = constructor.getArgumentTypes(); Type[] argumentTypes = new Type[constructorArgumentTypes.length + 1]; argumentTypes[0] = Type.getObjectType("java/lang/Class"); System.arraycopy(constructorArgumentTypes, 0, argumentTypes, 1, constructorArgumentTypes.length); MethodVisitor mv = classVisitor.visitMethod(Opcodes.ACC_PUBLIC, "create", Type.getMethodDescriptor(Type.getObjectType(implementationName), argumentTypes), null, null); if (mv != null) { mv.visitCode(); Label l0 = new Label(); mv.visitLabel(l0); mv.visitVarInsn(Opcodes.ALOAD, 1); Label l1 = new Label(); mv.visitJumpInsn(Opcodes.IFNONNULL, l1); mv.visitTypeInsn(Opcodes.NEW, implementationName); mv.visitInsn(Opcodes.DUP); for (int i = 0; i < constructorArgumentTypes.length; i++) { mv.visitVarInsn(constructorArgumentTypes[i].getOpcode(Opcodes.ILOAD), i + 2); } mv.visitMethodInsn(Opcodes.INVOKESPECIAL, implementationName, "<init>", constructor.getDescriptor()); mv.visitInsn(Opcodes.ARETURN); mv.visitLabel(l1); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitVarInsn(Opcodes.ALOAD, 1); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, name, "getDelegate", getDelegateDesc); for (int i = 0; i < constructorArgumentTypes.length; i++) { mv.visitVarInsn(constructorArgumentTypes[i].getOpcode(Opcodes.ILOAD), i + 2); } mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, factoryDelegateInterfaceName, "create", constructor.getFactoryDelegateMethodDescriptor()); mv.visitInsn(Opcodes.ARETURN); Label l3 = new Label(); mv.visitLabel(l3); mv.visitLocalVariable("this", "L" + name + ";", null, l0, l3, 0); mv.visitLocalVariable("extensionInterface", "Ljava/lang/Class;", null, l0, l3, 1); for (int i = 0; i < constructorArgumentTypes.length; i++) { mv.visitLocalVariable("arg" + i, constructorArgumentTypes[i].getDescriptor(), null, l0, l3, i + 2); } mv.visitMaxs(argumentTypes.length + 1, argumentTypes.length + 1); mv.visitEnd(); } } { MethodVisitor mv = classVisitor.visitMethod(Opcodes.ACC_STATIC, "<clinit>", "()V", null, null); if (mv != null) { mv.visitCode(); mv.visitTypeInsn(Opcodes.NEW, name); mv.visitInsn(Opcodes.DUP); mv.visitMethodInsn(Opcodes.INVOKESPECIAL, name, "<init>", "()V"); mv.visitFieldInsn(Opcodes.PUTSTATIC, name, "INSTANCE", "L" + factoryInterfaceName + ";"); mv.visitInsn(Opcodes.RETURN); mv.visitMaxs(2, 0); mv.visitEnd(); } } classVisitor.visitEnd(); }
From source file:com.googlecode.ddom.weaver.inject.InjectionAdapter.java
License:Apache License
@Override public void visitEnd() { for (InjectableFieldInfo fieldInfo : injectionInfo.getInjectableFields()) { MethodVisitor mv = cv.visitMethod(Opcodes.ACC_PRIVATE | Opcodes.ACC_STATIC, fieldInfo.getFactoryMethodName(), fieldInfo.getFactoryMethodDesc(), null, new String[0]); if (mv != null) { fieldInfo.getInjector().generateFactoryMethodCode(mv); }/* w ww . j a v a 2 s . c o m*/ } if (injectionInfo.hasInjectableInstanceFields()) { MethodVisitor mv = cv.visitMethod(Opcodes.ACC_PRIVATE, "inject$$instance", "()V", null, new String[0]); if (mv != null) { mv.visitCode(); Label l0 = new Label(); mv.visitLabel(l0); for (InjectableFieldInfo fieldInfo : injectionInfo.getInjectableFields()) { if (!fieldInfo.isStatic()) { mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitMethodInsn(Opcodes.INVOKESTATIC, className, fieldInfo.getFactoryMethodName(), fieldInfo.getFactoryMethodDesc()); mv.visitFieldInsn(Opcodes.PUTFIELD, className, fieldInfo.getFieldName(), fieldInfo.getFieldDesc()); } } mv.visitInsn(Opcodes.RETURN); Label l1 = new Label(); mv.visitLabel(l1); mv.visitLocalVariable("this", "L" + className + ";", null, l0, l1, 0); mv.visitMaxs(2, 1); mv.visitEnd(); } } if (injectionInfo.hasInjectableClassFields()) { MethodVisitor mv = cv.visitMethod(Opcodes.ACC_PRIVATE | Opcodes.ACC_STATIC, hasClassInitializer ? "inject$$class" : "<clinit>", "()V", null, new String[0]); if (mv != null) { mv.visitCode(); for (InjectableFieldInfo fieldInfo : injectionInfo.getInjectableFields()) { if (fieldInfo.isStatic()) { mv.visitMethodInsn(Opcodes.INVOKESTATIC, className, fieldInfo.getFactoryMethodName(), fieldInfo.getFactoryMethodDesc()); mv.visitFieldInsn(Opcodes.PUTSTATIC, className, fieldInfo.getFieldName(), fieldInfo.getFieldDesc()); } } mv.visitInsn(Opcodes.RETURN); mv.visitMaxs(1, 0); mv.visitEnd(); } } super.visitEnd(); }
From source file:com.googlecode.ddom.weaver.inject.PrototypeInjector.java
License:Apache License
public void generateFactoryMethodCode(MethodVisitor mv) { mv.visitCode();// ww w. j av a 2 s . com mv.visitTypeInsn(Opcodes.NEW, className); mv.visitInsn(Opcodes.DUP); mv.visitMethodInsn(Opcodes.INVOKESPECIAL, className, "<init>", "()V"); mv.visitInsn(Opcodes.ARETURN); mv.visitMaxs(2, 0); mv.visitEnd(); }
From source file:com.googlecode.gwt.test.internal.rewrite.RewriteSingleJsoImplDispatches.java
License:Apache License
/** * For regular Java objects that implement a SingleJsoImpl interface, write instance trampoline * dispatchers for mangled method names to the implementing method. *///from w ww . ja v a 2 s . c om private void writeTrampoline(String stubIntr) { /* * This is almost the same kind of trampoline as the ones generated in WriteJsoImpl, however * there are enough small differences between the semantics of the dispatches that would make * a common implementation far more awkward than the duplication of code. */ for (String mangledName : toImplement(stubIntr)) { for (Method method : jsoData.getDeclarations(mangledName)) { Method toCall = new Method(method.getName(), method.getDescriptor()); // Must not be final MethodVisitor mv = super.visitMethod(Opcodes.ACC_PUBLIC | Opcodes.ACC_SYNTHETIC, mangledName, method.getDescriptor(), null, null); if (mv != null) { mv.visitCode(); /* * It just so happens that the stack and local variable sizes are the same, but * they're kept distinct to aid in clarity should the dispatch logic change. * * These start at 1 because we need to load "this" onto the stack */ int var = 1; int size = 1; // load this mv.visitVarInsn(Opcodes.ALOAD, 0); // then the rest of the arguments for (Type t : toCall.getArgumentTypes()) { size += t.getSize(); mv.visitVarInsn(t.getOpcode(Opcodes.ILOAD), var); var += t.getSize(); } // Make sure there's enough room for the return value size = Math.max(size, toCall.getReturnType().getSize()); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, currentTypeName, toCall.getName(), toCall.getDescriptor()); mv.visitInsn(toCall.getReturnType().getOpcode(Opcodes.IRETURN)); mv.visitMaxs(size, var); mv.visitEnd(); } } } }
From source file:com.khubla.jvmbasic.jvmbasicc.JVMBasicCompiler.java
License:Open Source License
/** * generate init./*from ww w. j av a2 s . 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); } }