List of usage examples for org.objectweb.asm Opcodes ASTORE
int ASTORE
To view the source code for org.objectweb.asm Opcodes ASTORE.
Click Source Link
From source file:edu.illinois.nondex.instr.PriorityBlockingQueueShufflingAdder.java
License:Open Source License
public void addToString() { MethodVisitor mv = super.visitMethod(Opcodes.ACC_PUBLIC, "toString", "()Ljava/lang/String;", null, null); mv.visitCode();// w ww .j a v a2 s . co m Label l0 = new Label(); Label l1 = new Label(); Label l2 = new Label(); mv.visitTryCatchBlock(l0, l1, l2, null); Label l3 = new Label(); Label l4 = new Label(); mv.visitTryCatchBlock(l3, l4, l2, null); Label l5 = new Label(); mv.visitTryCatchBlock(l2, l5, l2, null); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitFieldInsn(Opcodes.GETFIELD, "java/util/concurrent/PriorityBlockingQueue", "lock", "Ljava/util/concurrent/locks/ReentrantLock;"); mv.visitVarInsn(Opcodes.ASTORE, 1); mv.visitVarInsn(Opcodes.ALOAD, 1); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/util/concurrent/locks/ReentrantLock", "lock", "()V", false); mv.visitLabel(l0); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitFieldInsn(Opcodes.GETFIELD, "java/util/concurrent/PriorityBlockingQueue", "size", "I"); mv.visitVarInsn(Opcodes.ISTORE, 2); mv.visitVarInsn(Opcodes.ILOAD, 2); mv.visitJumpInsn(Opcodes.IFNE, l3); mv.visitLdcInsn("[]"); mv.visitVarInsn(Opcodes.ASTORE, 3); mv.visitLabel(l1); mv.visitVarInsn(Opcodes.ALOAD, 1); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/util/concurrent/locks/ReentrantLock", "unlock", "()V", false); mv.visitVarInsn(Opcodes.ALOAD, 3); mv.visitInsn(Opcodes.ARETURN); mv.visitLabel(l3); mv.visitFrame(Opcodes.F_APPEND, 2, new Object[] { "java/util/concurrent/locks/ReentrantLock", Opcodes.INTEGER }, 0, null); mv.visitTypeInsn(Opcodes.NEW, "java/lang/StringBuilder"); mv.visitInsn(Opcodes.DUP); mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/StringBuilder", "<init>", "()V", false); mv.visitVarInsn(Opcodes.ASTORE, 3); mv.visitVarInsn(Opcodes.ALOAD, 3); mv.visitIntInsn(Opcodes.BIPUSH, 91); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/StringBuilder", "append", "(C)Ljava/lang/StringBuilder;", false); mv.visitInsn(Opcodes.POP); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitFieldInsn(Opcodes.GETFIELD, "java/util/concurrent/PriorityBlockingQueue", "queue", "[Ljava/lang/Object;"); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "[Ljava/lang/Object;", "clone", "()Ljava/lang/Object;", false); mv.visitTypeInsn(Opcodes.CHECKCAST, "[Ljava/lang/Object;"); mv.visitVarInsn(Opcodes.ASTORE, 4); mv.visitVarInsn(Opcodes.ALOAD, 4); mv.visitMethodInsn(Opcodes.INVOKESTATIC, "edu/illinois/nondex/shuffling/ControlNondeterminism", "shuffle", "([Ljava/lang/Object;)[Ljava/lang/Object;", false); mv.visitVarInsn(Opcodes.ASTORE, 4); mv.visitInsn(Opcodes.ICONST_0); mv.visitVarInsn(Opcodes.ISTORE, 5); Label l6 = new Label(); mv.visitLabel(l6); mv.visitFrame(Opcodes.F_APPEND, 3, new Object[] { "java/lang/StringBuilder", "[Ljava/lang/Object;", Opcodes.INTEGER }, 0, null); mv.visitVarInsn(Opcodes.ILOAD, 5); mv.visitVarInsn(Opcodes.ILOAD, 2); Label l7 = new Label(); mv.visitJumpInsn(Opcodes.IF_ICMPGE, l7); mv.visitVarInsn(Opcodes.ALOAD, 4); mv.visitVarInsn(Opcodes.ILOAD, 5); mv.visitInsn(Opcodes.AALOAD); mv.visitVarInsn(Opcodes.ASTORE, 6); mv.visitVarInsn(Opcodes.ALOAD, 3); mv.visitVarInsn(Opcodes.ALOAD, 6); mv.visitVarInsn(Opcodes.ALOAD, 0); Label l8 = new Label(); mv.visitJumpInsn(Opcodes.IF_ACMPNE, l8); mv.visitLdcInsn("(this Collection)"); Label l9 = new Label(); mv.visitJumpInsn(Opcodes.GOTO, l9); mv.visitLabel(l8); mv.visitFrame(Opcodes.F_FULL, 7, new Object[] { "java/util/concurrent/PriorityBlockingQueue", "java/util/concurrent/locks/ReentrantLock", Opcodes.INTEGER, "java/lang/StringBuilder", "[Ljava/lang/Object;", Opcodes.INTEGER, "java/lang/Object" }, 1, new Object[] { "java/lang/StringBuilder" }); mv.visitVarInsn(Opcodes.ALOAD, 6); mv.visitLabel(l9); mv.visitFrame(Opcodes.F_FULL, 7, new Object[] { "java/util/concurrent/PriorityBlockingQueue", "java/util/concurrent/locks/ReentrantLock", Opcodes.INTEGER, "java/lang/StringBuilder", "[Ljava/lang/Object;", Opcodes.INTEGER, "java/lang/Object" }, 2, new Object[] { "java/lang/StringBuilder", "java/lang/Object" }); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/StringBuilder", "append", "(Ljava/lang/Object;)Ljava/lang/StringBuilder;", false); mv.visitInsn(Opcodes.POP); mv.visitVarInsn(Opcodes.ILOAD, 5); mv.visitVarInsn(Opcodes.ILOAD, 2); mv.visitInsn(Opcodes.ICONST_1); mv.visitInsn(Opcodes.ISUB); Label l10 = new Label(); mv.visitJumpInsn(Opcodes.IF_ICMPEQ, l10); mv.visitVarInsn(Opcodes.ALOAD, 3); mv.visitIntInsn(Opcodes.BIPUSH, 44); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/StringBuilder", "append", "(C)Ljava/lang/StringBuilder;", false); mv.visitIntInsn(Opcodes.BIPUSH, 32); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/StringBuilder", "append", "(C)Ljava/lang/StringBuilder;", false); mv.visitInsn(Opcodes.POP); mv.visitLabel(l10); mv.visitFrame(Opcodes.F_CHOP, 1, null, 0, null); mv.visitIincInsn(5, 1); mv.visitJumpInsn(Opcodes.GOTO, l6); mv.visitLabel(l7); mv.visitFrame(Opcodes.F_CHOP, 1, null, 0, null); mv.visitVarInsn(Opcodes.ALOAD, 3); mv.visitIntInsn(Opcodes.BIPUSH, 93); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/StringBuilder", "append", "(C)Ljava/lang/StringBuilder;", false); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/StringBuilder", "toString", "()Ljava/lang/String;", false); mv.visitVarInsn(Opcodes.ASTORE, 5); mv.visitLabel(l4); mv.visitVarInsn(Opcodes.ALOAD, 1); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/util/concurrent/locks/ReentrantLock", "unlock", "()V", false); mv.visitVarInsn(Opcodes.ALOAD, 5); mv.visitInsn(Opcodes.ARETURN); mv.visitLabel(l2); mv.visitFrame(Opcodes.F_FULL, 2, new Object[] { "java/util/concurrent/PriorityBlockingQueue", "java/util/concurrent/locks/ReentrantLock" }, 1, new Object[] { "java/lang/Throwable" }); mv.visitVarInsn(Opcodes.ASTORE, 7); mv.visitLabel(l5); mv.visitVarInsn(Opcodes.ALOAD, 1); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/util/concurrent/locks/ReentrantLock", "unlock", "()V", false); mv.visitVarInsn(Opcodes.ALOAD, 7); mv.visitInsn(Opcodes.ATHROW); mv.visitMaxs(3, 8); mv.visitEnd(); }
From source file:edu.illinois.nondex.instr.WeakHashMapShufflingAdder.java
License:Open Source License
@Override public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) { if ("hasNext".equals(name)) { return super.visitMethod(access, "originalHasNext", desc, signature, exceptions); }//from ww w .j a va 2 s . c o m if ("nextEntry".equals(name)) { return super.visitMethod(access, "originalNextEntry", desc, signature, exceptions); } if ("<init>".equals(name)) { return new MethodVisitor(Opcodes.ASM5, super.visitMethod(access, name, desc, signature, exceptions)) { @Override public void visitInsn(int opcode) { if (opcode == Opcodes.RETURN) { super.visitVarInsn(Opcodes.ALOAD, 0); super.visitVarInsn(Opcodes.ALOAD, 1); super.visitFieldInsn(Opcodes.PUTFIELD, "java/util/WeakHashMap$HashIterator", "this$0", "Ljava/util/WeakHashMap;"); super.visitVarInsn(Opcodes.ALOAD, 0); super.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false); super.visitVarInsn(Opcodes.ALOAD, 0); super.visitInsn(Opcodes.ACONST_NULL); super.visitFieldInsn(Opcodes.PUTFIELD, "java/util/WeakHashMap$HashIterator", "entry", "Ljava/util/WeakHashMap$Entry;"); super.visitVarInsn(Opcodes.ALOAD, 0); super.visitInsn(Opcodes.ACONST_NULL); super.visitFieldInsn(Opcodes.PUTFIELD, "java/util/WeakHashMap$HashIterator", "lastReturned", "Ljava/util/WeakHashMap$Entry;"); super.visitVarInsn(Opcodes.ALOAD, 0); super.visitVarInsn(Opcodes.ALOAD, 0); super.visitFieldInsn(Opcodes.GETFIELD, "java/util/WeakHashMap$HashIterator", "this$0", "Ljava/util/WeakHashMap;"); super.visitFieldInsn(Opcodes.GETFIELD, "java/util/WeakHashMap", "modCount", "I"); super.visitFieldInsn(Opcodes.PUTFIELD, "java/util/WeakHashMap$HashIterator", "expectedModCount", "I"); super.visitVarInsn(Opcodes.ALOAD, 0); super.visitInsn(Opcodes.ACONST_NULL); super.visitFieldInsn(Opcodes.PUTFIELD, "java/util/WeakHashMap$HashIterator", "nextKey", "Ljava/lang/Object;"); super.visitVarInsn(Opcodes.ALOAD, 0); super.visitInsn(Opcodes.ACONST_NULL); super.visitFieldInsn(Opcodes.PUTFIELD, "java/util/WeakHashMap$HashIterator", "currentKey", "Ljava/lang/Object;"); super.visitVarInsn(Opcodes.ALOAD, 0); super.visitInsn(Opcodes.ACONST_NULL); super.visitFieldInsn(Opcodes.PUTFIELD, "java/util/WeakHashMap$HashIterator", "iter", "Ljava/util/Iterator;"); super.visitVarInsn(Opcodes.ALOAD, 0); super.visitVarInsn(Opcodes.ALOAD, 1); super.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/util/WeakHashMap", "isEmpty", "()Z", false); Label l0 = new Label(); super.visitJumpInsn(Opcodes.IFEQ, l0); super.visitInsn(Opcodes.ICONST_0); Label l1 = new Label(); super.visitJumpInsn(Opcodes.GOTO, l1); super.visitLabel(l0); super.visitFrame(Opcodes.F_FULL, 2, new Object[] { "java/util/WeakHashMap$HashIterator", "java/util/WeakHashMap" }, 1, new Object[] { "java/util/WeakHashMap$HashIterator" }); super.visitVarInsn(Opcodes.ALOAD, 1); super.visitFieldInsn(Opcodes.GETFIELD, "java/util/WeakHashMap", "table", "[Ljava/util/WeakHashMap$Entry;"); super.visitInsn(Opcodes.ARRAYLENGTH); super.visitLabel(l1); super.visitFrame(Opcodes.F_FULL, 2, new Object[] { "java/util/WeakHashMap$HashIterator", "java/util/WeakHashMap" }, 2, new Object[] { "java/util/WeakHashMap$HashIterator", Opcodes.INTEGER }); super.visitFieldInsn(Opcodes.PUTFIELD, "java/util/WeakHashMap$HashIterator", "index", "I"); super.visitTypeInsn(Opcodes.NEW, "java/util/ArrayList"); super.visitInsn(Opcodes.DUP); super.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/util/ArrayList", "<init>", "()V", false); super.visitVarInsn(Opcodes.ASTORE, 2); Label l2 = new Label(); super.visitLabel(l2); super.visitFrame(Opcodes.F_APPEND, 1, new Object[] { "java/util/List" }, 0, null); super.visitVarInsn(Opcodes.ALOAD, 0); super.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/util/WeakHashMap$HashIterator", "originalHasNext", "()Z", false); Label l3 = new Label(); super.visitJumpInsn(Opcodes.IFEQ, l3); super.visitVarInsn(Opcodes.ALOAD, 2); super.visitVarInsn(Opcodes.ALOAD, 0); super.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/util/WeakHashMap$HashIterator", "originalNextEntry", "()Ljava/util/WeakHashMap$Entry;", false); super.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/List", "add", "(Ljava/lang/Object;)Z", true); super.visitInsn(Opcodes.POP); super.visitJumpInsn(Opcodes.GOTO, l2); super.visitLabel(l3); super.visitFrame(Opcodes.F_SAME, 0, null, 0, null); super.visitVarInsn(Opcodes.ALOAD, 2); super.visitMethodInsn(Opcodes.INVOKESTATIC, "edu/illinois/nondex/shuffling/ControlNondeterminism", "shuffle", "(Ljava/util/List;)Ljava/util/List;", false); super.visitVarInsn(Opcodes.ASTORE, 2); super.visitVarInsn(Opcodes.ALOAD, 0); super.visitVarInsn(Opcodes.ALOAD, 2); super.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/List", "iterator", "()Ljava/util/Iterator;", true); super.visitFieldInsn(Opcodes.PUTFIELD, "java/util/WeakHashMap$HashIterator", "iter", "Ljava/util/Iterator;"); super.visitVarInsn(Opcodes.ALOAD, 0); super.visitInsn(Opcodes.ACONST_NULL); super.visitFieldInsn(Opcodes.PUTFIELD, "java/util/WeakHashMap$HashIterator", "lastReturned", "Ljava/util/WeakHashMap$Entry;"); } super.visitInsn(opcode); } }; } return super.visitMethod(access, name, desc, signature, exceptions); }
From source file:edu.mit.streamjit.util.bytecode.MethodResolver.java
License:Open Source License
private void interpret(VarInsnNode insn, FrameState frame, BBInfo block) { int var = insn.var; switch (insn.getOpcode()) { case Opcodes.ILOAD: assert frame.locals[var].getType().isSubtypeOf(typeFactory.getType(int.class)); frame.stack.push(frame.locals[var]); break;//from w ww . j a va2 s.com case Opcodes.LLOAD: assert frame.locals[var].getType().isSubtypeOf(typeFactory.getType(long.class)); frame.stack.push(frame.locals[var]); break; case Opcodes.FLOAD: assert frame.locals[var].getType().isSubtypeOf(typeFactory.getType(float.class)); frame.stack.push(frame.locals[var]); break; case Opcodes.DLOAD: assert frame.locals[var].getType().isSubtypeOf(typeFactory.getType(double.class)); frame.stack.push(frame.locals[var]); break; case Opcodes.ALOAD: assert frame.locals[var].getType().isSubtypeOf(typeFactory.getType(Object.class)); frame.stack.push(frame.locals[var]); break; case Opcodes.ISTORE: assert frame.stack.peek().getType().isSubtypeOf(typeFactory.getType(int.class)); frame.locals[var] = frame.stack.pop(); break; case Opcodes.LSTORE: assert frame.stack.peek().getType().isSubtypeOf(typeFactory.getType(long.class)); frame.locals[var] = frame.stack.pop(); break; case Opcodes.FSTORE: assert frame.stack.peek().getType().isSubtypeOf(typeFactory.getType(float.class)); frame.locals[var] = frame.stack.pop(); break; case Opcodes.DSTORE: assert frame.stack.peek().getType().isSubtypeOf(typeFactory.getType(double.class)); frame.locals[var] = frame.stack.pop(); break; case Opcodes.ASTORE: assert frame.stack.peek().getType().isSubtypeOf(typeFactory.getType(Object.class)); frame.locals[var] = frame.stack.pop(); break; default: throw new UnsupportedOperationException("" + insn.getOpcode()); } }
From source file:edu.mit.streamjit.util.bytecode.MethodUnresolver.java
License:Open Source License
private void store(Value v, InsnList insns) { assert registers.containsKey(v) : v; int reg = registers.get(v); Type t = v instanceof LocalVariable ? ((LocalVariable) v).getType().getFieldType() : v.getType(); if (t instanceof ReferenceType || t instanceof NullType) insns.add(new VarInsnNode(Opcodes.ASTORE, reg)); else if (t.equals(longType)) insns.add(new VarInsnNode(Opcodes.LSTORE, reg)); else if (t.equals(floatType)) insns.add(new VarInsnNode(Opcodes.FSTORE, reg)); else if (t.equals(doubleType)) insns.add(new VarInsnNode(Opcodes.DSTORE, reg)); else if (t.isSubtypeOf(intType)) insns.add(new VarInsnNode(Opcodes.ISTORE, reg)); else//w w w . j a v a2 s. c o m throw new AssertionError("unstorable value: " + v); }
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,// w w w . j a v a2 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 generateStub() throws IOException { stubname = fullclassname + "_Stub"; String stubclassname = classname + "_Stub"; File file = new File((destination == null ? "." : destination) + File.separator + stubname.replace('.', File.separatorChar) + ".class"); if (verbose)//from w w w . j a v a2 s. c om System.out.println("[Generating class " + stubname + "]"); final ClassWriter stub = new ClassWriter(true); classInternalName = stubname.replace('.', '/'); final String superInternalName = Type.getType(RemoteStub.class).getInternalName(); String[] remoteInternalNames = internalNameArray((Class[]) mRemoteInterfaces.toArray(new Class[] {})); stub.visit(Opcodes.V1_2, Opcodes.ACC_PUBLIC + Opcodes.ACC_FINAL, classInternalName, null, superInternalName, remoteInternalNames); if (need12Stubs) { stub.visitField(Opcodes.ACC_PRIVATE + Opcodes.ACC_STATIC + Opcodes.ACC_FINAL, "serialVersionUID", Type.LONG_TYPE.getDescriptor(), null, new Long(2L)); } if (need11Stubs) { stub.visitField(Opcodes.ACC_PRIVATE + Opcodes.ACC_STATIC + Opcodes.ACC_FINAL, "interfaceHash", Type.LONG_TYPE.getDescriptor(), null, new Long(RMIHashes.getInterfaceHash(clazz))); if (need12Stubs) { stub.visitField(Opcodes.ACC_PRIVATE + Opcodes.ACC_STATIC, "useNewInvoke", Type.BOOLEAN_TYPE.getDescriptor(), null, null); } stub.visitField(Opcodes.ACC_PRIVATE + Opcodes.ACC_STATIC + Opcodes.ACC_FINAL, "operations", Type.getDescriptor(Operation[].class), null, null); } // Set of method references. if (need12Stubs) { for (int i = 0; i < remotemethods.length; i++) { Method m = remotemethods[i].meth; String slotName = "$method_" + m.getName() + "_" + i; stub.visitField(Opcodes.ACC_PRIVATE + Opcodes.ACC_STATIC, slotName, Type.getDescriptor(Method.class), null, null); } } MethodVisitor clinit = stub.visitMethod(Opcodes.ACC_STATIC, "<clinit>", Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] {}), null, null); if (need11Stubs) { fillOperationArray(clinit); if (!need12Stubs) clinit.visitInsn(Opcodes.RETURN); } if (need12Stubs) { // begin of try Label begin = new Label(); // beginning of catch Label handler = new Label(); clinit.visitLabel(begin); // Initialize the methods references. if (need11Stubs) { /* * RemoteRef.class.getMethod("invoke", new Class[] { * Remote.class, Method.class, Object[].class, long.class }) */ generateClassConstant(clinit, RemoteRef.class); clinit.visitLdcInsn("invoke"); generateClassArray(clinit, new Class[] { Remote.class, Method.class, Object[].class, long.class }); clinit.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Type.getInternalName(Class.class), "getMethod", Type.getMethodDescriptor(Type.getType(Method.class), new Type[] { Type.getType(String.class), Type.getType(Class[].class) })); // useNewInvoke = true clinit.visitInsn(Opcodes.ICONST_1); clinit.visitFieldInsn(Opcodes.PUTSTATIC, classInternalName, "useNewInvoke", Type.BOOLEAN_TYPE.getDescriptor()); } generateStaticMethodObjs(clinit); // jump past handler clinit.visitInsn(Opcodes.RETURN); clinit.visitLabel(handler); if (need11Stubs) { // useNewInvoke = false clinit.visitInsn(Opcodes.ICONST_0); clinit.visitFieldInsn(Opcodes.PUTSTATIC, classInternalName, "useNewInvoke", Type.BOOLEAN_TYPE.getDescriptor()); clinit.visitInsn(Opcodes.RETURN); } else { // throw NoSuchMethodError clinit.visitTypeInsn(Opcodes.NEW, typeArg(NoSuchMethodError.class)); clinit.visitInsn(Opcodes.DUP); clinit.visitLdcInsn("stub class initialization failed"); clinit.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(NoSuchMethodError.class), "<init>", Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] { Type.getType(String.class) })); clinit.visitInsn(Opcodes.ATHROW); } clinit.visitTryCatchBlock(begin, handler, handler, Type.getInternalName(NoSuchMethodException.class)); } clinit.visitMaxs(-1, -1); generateClassForNamer(stub); // Constructors if (need11Stubs) { // no arg public constructor MethodVisitor code = stub.visitMethod(Opcodes.ACC_PUBLIC, "<init>", Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] {}), null, null); code.visitVarInsn(Opcodes.ALOAD, 0); code.visitMethodInsn(Opcodes.INVOKESPECIAL, superInternalName, "<init>", Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] {})); code.visitInsn(Opcodes.RETURN); code.visitMaxs(-1, -1); } // public RemoteRef constructor MethodVisitor constructor = stub.visitMethod(Opcodes.ACC_PUBLIC, "<init>", Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] { Type.getType(RemoteRef.class) }), null, null); constructor.visitVarInsn(Opcodes.ALOAD, 0); constructor.visitVarInsn(Opcodes.ALOAD, 1); constructor.visitMethodInsn(Opcodes.INVOKESPECIAL, superInternalName, "<init>", Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] { Type.getType(RemoteRef.class) })); constructor.visitInsn(Opcodes.RETURN); constructor.visitMaxs(-1, -1); // Method implementations for (int i = 0; i < remotemethods.length; i++) { Method m = remotemethods[i].meth; Class[] sig = m.getParameterTypes(); Class returntype = m.getReturnType(); Class[] except = sortExceptions((Class[]) remotemethods[i].exceptions.toArray(new Class[0])); MethodVisitor code = stub.visitMethod(Opcodes.ACC_PUBLIC, m.getName(), Type.getMethodDescriptor(Type.getType(returntype), typeArray(sig)), null, internalNameArray(typeArray(except))); final Variables var = new Variables(); // this and parameters are the declared vars var.declare("this"); for (int j = 0; j < sig.length; j++) var.declare(param(m, j), size(sig[j])); Label methodTryBegin = new Label(); code.visitLabel(methodTryBegin); if (need12Stubs) { Label oldInvoke = new Label(); if (need11Stubs) { // if not useNewInvoke jump to old invoke code.visitFieldInsn(Opcodes.GETSTATIC, classInternalName, "useNewInvoke", Type.getDescriptor(boolean.class)); code.visitJumpInsn(Opcodes.IFEQ, oldInvoke); } // this.ref code.visitVarInsn(Opcodes.ALOAD, var.get("this")); code.visitFieldInsn(Opcodes.GETFIELD, Type.getInternalName(RemoteObject.class), "ref", Type.getDescriptor(RemoteRef.class)); // "this" is first arg to invoke code.visitVarInsn(Opcodes.ALOAD, var.get("this")); // method object is second arg to invoke String methName = "$method_" + m.getName() + "_" + i; code.visitFieldInsn(Opcodes.GETSTATIC, classInternalName, methName, Type.getDescriptor(Method.class)); // args to remote method are third arg to invoke if (sig.length == 0) code.visitInsn(Opcodes.ACONST_NULL); else { // create arg Object[] (with boxed primitives) and push it code.visitLdcInsn(new Integer(sig.length)); code.visitTypeInsn(Opcodes.ANEWARRAY, typeArg(Object.class)); var.allocate("argArray"); code.visitVarInsn(Opcodes.ASTORE, var.get("argArray")); for (int j = 0; j < sig.length; j++) { int size = size(sig[j]); int insn = loadOpcode(sig[j]); Class box = sig[j].isPrimitive() ? box(sig[j]) : null; code.visitVarInsn(Opcodes.ALOAD, var.get("argArray")); code.visitLdcInsn(new Integer(j)); // put argument on stack if (box != null) { code.visitTypeInsn(Opcodes.NEW, typeArg(box)); code.visitInsn(Opcodes.DUP); code.visitVarInsn(insn, var.get(param(m, j))); code.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(box), "<init>", Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] { Type.getType(sig[j]) })); } else code.visitVarInsn(insn, var.get(param(m, j))); code.visitInsn(Opcodes.AASTORE); } code.visitVarInsn(Opcodes.ALOAD, var.deallocate("argArray")); } // push remote operation opcode code.visitLdcInsn(new Long(remotemethods[i].hash)); code.visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getInternalName(RemoteRef.class), "invoke", Type.getMethodDescriptor(Type.getType(Object.class), new Type[] { Type.getType(Remote.class), Type.getType(Method.class), Type.getType(Object[].class), Type.LONG_TYPE })); if (!returntype.equals(Void.TYPE)) { int retcode = returnOpcode(returntype); Class boxCls = returntype.isPrimitive() ? box(returntype) : null; code.visitTypeInsn(Opcodes.CHECKCAST, typeArg(boxCls == null ? returntype : boxCls)); if (returntype.isPrimitive()) { // unbox code.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Type.getType(boxCls).getInternalName(), unboxMethod(returntype), Type.getMethodDescriptor(Type.getType(returntype), new Type[] {})); } code.visitInsn(retcode); } else code.visitInsn(Opcodes.RETURN); if (need11Stubs) code.visitLabel(oldInvoke); } if (need11Stubs) { // this.ref.newCall(this, operations, index, interfaceHash) code.visitVarInsn(Opcodes.ALOAD, var.get("this")); code.visitFieldInsn(Opcodes.GETFIELD, Type.getInternalName(RemoteObject.class), "ref", Type.getDescriptor(RemoteRef.class)); // "this" is first arg to newCall code.visitVarInsn(Opcodes.ALOAD, var.get("this")); // operations is second arg to newCall code.visitFieldInsn(Opcodes.GETSTATIC, classInternalName, "operations", Type.getDescriptor(Operation[].class)); // method index is third arg code.visitLdcInsn(new Integer(i)); // interface hash is fourth arg code.visitFieldInsn(Opcodes.GETSTATIC, classInternalName, "interfaceHash", Type.LONG_TYPE.getDescriptor()); code.visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getInternalName(RemoteRef.class), "newCall", Type.getMethodDescriptor(Type.getType(RemoteCall.class), new Type[] { Type.getType(RemoteObject.class), Type.getType(Operation[].class), Type.INT_TYPE, Type.LONG_TYPE })); // store call object on stack and leave copy on stack var.allocate("call"); code.visitInsn(Opcodes.DUP); code.visitVarInsn(Opcodes.ASTORE, var.get("call")); Label beginArgumentTryBlock = new Label(); code.visitLabel(beginArgumentTryBlock); // ObjectOutput out = call.getOutputStream(); code.visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getInternalName(RemoteCall.class), "getOutputStream", Type.getMethodDescriptor(Type.getType(ObjectOutput.class), new Type[] {})); for (int j = 0; j < sig.length; j++) { // dup the ObjectOutput code.visitInsn(Opcodes.DUP); // get j'th arg to remote method code.visitVarInsn(loadOpcode(sig[j]), var.get(param(m, j))); Class argCls = sig[j].isPrimitive() ? sig[j] : Object.class; // out.writeFoo code.visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getInternalName(ObjectOutput.class), writeMethod(sig[j]), Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] { Type.getType(argCls) })); } // pop ObjectOutput code.visitInsn(Opcodes.POP); Label iohandler = new Label(); Label endArgumentTryBlock = new Label(); code.visitJumpInsn(Opcodes.GOTO, endArgumentTryBlock); code.visitLabel(iohandler); // throw new MarshalException(msg, ioexception); code.visitVarInsn(Opcodes.ASTORE, var.allocate("exception")); code.visitTypeInsn(Opcodes.NEW, typeArg(MarshalException.class)); code.visitInsn(Opcodes.DUP); code.visitLdcInsn("error marshalling arguments"); code.visitVarInsn(Opcodes.ALOAD, var.deallocate("exception")); code.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(MarshalException.class), "<init>", Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] { Type.getType(String.class), Type.getType(Exception.class) })); code.visitInsn(Opcodes.ATHROW); code.visitLabel(endArgumentTryBlock); code.visitTryCatchBlock(beginArgumentTryBlock, iohandler, iohandler, Type.getInternalName(IOException.class)); // this.ref.invoke(call) code.visitVarInsn(Opcodes.ALOAD, var.get("this")); code.visitFieldInsn(Opcodes.GETFIELD, Type.getInternalName(RemoteObject.class), "ref", Type.getDescriptor(RemoteRef.class)); code.visitVarInsn(Opcodes.ALOAD, var.get("call")); code.visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getInternalName(RemoteRef.class), "invoke", Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] { Type.getType(RemoteCall.class) })); // handle return value boolean needcastcheck = false; Label beginReturnTryCatch = new Label(); code.visitLabel(beginReturnTryCatch); int returncode = returnOpcode(returntype); if (!returntype.equals(Void.TYPE)) { // call.getInputStream() code.visitVarInsn(Opcodes.ALOAD, var.get("call")); code.visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getInternalName(RemoteCall.class), "getInputStream", Type.getMethodDescriptor(Type.getType(ObjectInput.class), new Type[] {})); Class readCls = returntype.isPrimitive() ? returntype : Object.class; code.visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getInternalName(ObjectInput.class), readMethod(returntype), Type.getMethodDescriptor(Type.getType(readCls), new Type[] {})); boolean castresult = false; if (!returntype.isPrimitive()) { if (!returntype.equals(Object.class)) castresult = true; else needcastcheck = true; } if (castresult) code.visitTypeInsn(Opcodes.CHECKCAST, typeArg(returntype)); // leave result on stack for return } // this.ref.done(call) code.visitVarInsn(Opcodes.ALOAD, var.get("this")); code.visitFieldInsn(Opcodes.GETFIELD, Type.getInternalName(RemoteObject.class), "ref", Type.getDescriptor(RemoteRef.class)); code.visitVarInsn(Opcodes.ALOAD, var.deallocate("call")); code.visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getInternalName(RemoteRef.class), "done", Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] { Type.getType(RemoteCall.class) })); // return; or return result; code.visitInsn(returncode); // exception handler Label handler = new Label(); code.visitLabel(handler); code.visitVarInsn(Opcodes.ASTORE, var.allocate("exception")); // throw new UnmarshalException(msg, e) code.visitTypeInsn(Opcodes.NEW, typeArg(UnmarshalException.class)); code.visitInsn(Opcodes.DUP); code.visitLdcInsn("error unmarshalling return"); code.visitVarInsn(Opcodes.ALOAD, var.deallocate("exception")); code.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(UnmarshalException.class), "<init>", Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] { Type.getType(String.class), Type.getType(Exception.class) })); code.visitInsn(Opcodes.ATHROW); Label endReturnTryCatch = new Label(); // catch IOException code.visitTryCatchBlock(beginReturnTryCatch, handler, handler, Type.getInternalName(IOException.class)); if (needcastcheck) { // catch ClassNotFoundException code.visitTryCatchBlock(beginReturnTryCatch, handler, handler, Type.getInternalName(ClassNotFoundException.class)); } } Label rethrowHandler = new Label(); code.visitLabel(rethrowHandler); // rethrow declared exceptions code.visitInsn(Opcodes.ATHROW); boolean needgeneral = true; for (int j = 0; j < except.length; j++) { if (except[j] == Exception.class) needgeneral = false; } for (int j = 0; j < except.length; j++) { code.visitTryCatchBlock(methodTryBegin, rethrowHandler, rethrowHandler, Type.getInternalName(except[j])); } if (needgeneral) { // rethrow unchecked exceptions code.visitTryCatchBlock(methodTryBegin, rethrowHandler, rethrowHandler, Type.getInternalName(RuntimeException.class)); Label generalHandler = new Label(); code.visitLabel(generalHandler); String msg = "undeclared checked exception"; // throw new java.rmi.UnexpectedException(msg, e) code.visitVarInsn(Opcodes.ASTORE, var.allocate("exception")); code.visitTypeInsn(Opcodes.NEW, typeArg(UnexpectedException.class)); code.visitInsn(Opcodes.DUP); code.visitLdcInsn(msg); code.visitVarInsn(Opcodes.ALOAD, var.deallocate("exception")); code.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(UnexpectedException.class), "<init>", Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] { Type.getType(String.class), Type.getType(Exception.class) })); code.visitInsn(Opcodes.ATHROW); code.visitTryCatchBlock(methodTryBegin, rethrowHandler, generalHandler, Type.getInternalName(Exception.class)); } code.visitMaxs(-1, -1); } stub.visitEnd(); byte[] classData = stub.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 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)// w ww . j av a2 s . c o 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 void generateMethodSkel(MethodVisitor cv, Method m, Variables var) { Class[] sig = m.getParameterTypes(); Label readArgs = new Label(); cv.visitLabel(readArgs);//from w w w .j a v a2s.c o m boolean needcastcheck = false; // ObjectInput in = call.getInputStream(); cv.visitVarInsn(Opcodes.ALOAD, var.get("remotecall")); cv.visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getInternalName(RemoteCall.class), "getInputStream", Type.getMethodDescriptor(Type.getType(ObjectInput.class), new Type[] {})); cv.visitVarInsn(Opcodes.ASTORE, var.allocate("objectinput")); for (int i = 0; i < sig.length; i++) { // dup input stream cv.visitVarInsn(Opcodes.ALOAD, var.get("objectinput")); Class readCls = sig[i].isPrimitive() ? sig[i] : Object.class; // in.readFoo() cv.visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getInternalName(ObjectInput.class), readMethod(sig[i]), Type.getMethodDescriptor(Type.getType(readCls), new Type[] {})); if (!sig[i].isPrimitive() && !sig[i].equals(Object.class)) { needcastcheck = true; cv.visitTypeInsn(Opcodes.CHECKCAST, typeArg(sig[i])); } // store arg in variable cv.visitVarInsn(storeOpcode(sig[i]), var.allocate(param(m, i), size(sig[i]))); } var.deallocate("objectinput"); Label doCall = new Label(); Label closeInput = new Label(); cv.visitJumpInsn(Opcodes.JSR, closeInput); cv.visitJumpInsn(Opcodes.GOTO, doCall); // throw new UnmarshalException Label handler = new Label(); cv.visitLabel(handler); cv.visitVarInsn(Opcodes.ASTORE, var.allocate("exception")); cv.visitTypeInsn(Opcodes.NEW, typeArg(UnmarshalException.class)); cv.visitInsn(Opcodes.DUP); cv.visitLdcInsn("error unmarshalling arguments"); cv.visitVarInsn(Opcodes.ALOAD, var.deallocate("exception")); cv.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(UnmarshalException.class), "<init>", Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] { Type.getType(String.class), Type.getType(Exception.class) })); cv.visitVarInsn(Opcodes.ASTORE, var.allocate("toThrow")); cv.visitJumpInsn(Opcodes.JSR, closeInput); cv.visitVarInsn(Opcodes.ALOAD, var.get("toThrow")); cv.visitInsn(Opcodes.ATHROW); cv.visitTryCatchBlock(readArgs, handler, handler, Type.getInternalName(IOException.class)); if (needcastcheck) { cv.visitTryCatchBlock(readArgs, handler, handler, Type.getInternalName(ClassCastException.class)); } // finally block cv.visitLabel(closeInput); cv.visitVarInsn(Opcodes.ASTORE, var.allocate("retAddress")); cv.visitVarInsn(Opcodes.ALOAD, var.get("remotecall")); cv.visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getInternalName(RemoteCall.class), "releaseInputStream", Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] {})); cv.visitVarInsn(Opcodes.RET, var.deallocate("retAddress")); var.deallocate("toThrow"); // do the call using args stored as variables cv.visitLabel(doCall); cv.visitVarInsn(Opcodes.ALOAD, var.get("remoteobj")); for (int i = 0; i < sig.length; i++) cv.visitVarInsn(loadOpcode(sig[i]), var.deallocate(param(m, i))); cv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Type.getInternalName(clazz), m.getName(), Type.getMethodDescriptor(m)); Class returntype = m.getReturnType(); if (!returntype.equals(Void.TYPE)) { cv.visitVarInsn(storeOpcode(returntype), var.allocate("result", size(returntype))); } // write result to result stream Label writeResult = new Label(); cv.visitLabel(writeResult); cv.visitVarInsn(Opcodes.ALOAD, var.get("remotecall")); cv.visitInsn(Opcodes.ICONST_1); cv.visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getInternalName(RemoteCall.class), "getResultStream", Type.getMethodDescriptor(Type.getType(ObjectOutput.class), new Type[] { Type.BOOLEAN_TYPE })); if (!returntype.equals(Void.TYPE)) { // out.writeFoo(result) cv.visitVarInsn(loadOpcode(returntype), var.deallocate("result")); Class writeCls = returntype.isPrimitive() ? returntype : Object.class; cv.visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getInternalName(ObjectOutput.class), writeMethod(returntype), Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] { Type.getType(writeCls) })); } cv.visitInsn(Opcodes.RETURN); // throw new MarshalException Label marshalHandler = new Label(); cv.visitLabel(marshalHandler); cv.visitVarInsn(Opcodes.ASTORE, var.allocate("exception")); cv.visitTypeInsn(Opcodes.NEW, typeArg(MarshalException.class)); cv.visitInsn(Opcodes.DUP); cv.visitLdcInsn("error marshalling return"); cv.visitVarInsn(Opcodes.ALOAD, var.deallocate("exception")); cv.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(MarshalException.class), "<init>", Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] { Type.getType(String.class), Type.getType(Exception.class) })); cv.visitInsn(Opcodes.ATHROW); cv.visitTryCatchBlock(writeResult, marshalHandler, marshalHandler, Type.getInternalName(IOException.class)); }
From source file:gnu.classpath.tools.rmic.ClassRmicCompiler.java
License:Open Source License
private static int storeOpcode(Class cls) { if (cls.equals(Void.TYPE)) throw new IllegalArgumentException("can not load void"); int storecode; if (cls.equals(Boolean.TYPE)) storecode = Opcodes.ISTORE;/* w w w .jav a2 s .c o m*/ else if (cls.equals(Byte.TYPE)) storecode = Opcodes.ISTORE; else if (cls.equals(Character.TYPE)) storecode = Opcodes.ISTORE; else if (cls.equals(Short.TYPE)) storecode = Opcodes.ISTORE; else if (cls.equals(Integer.TYPE)) storecode = Opcodes.ISTORE; else if (cls.equals(Long.TYPE)) storecode = Opcodes.LSTORE; else if (cls.equals(Float.TYPE)) storecode = Opcodes.FSTORE; else if (cls.equals(Double.TYPE)) storecode = Opcodes.DSTORE; else storecode = Opcodes.ASTORE; return storecode; }
From source file:io.awacs.plugin.springmvc.ServiceWrapper.java
License:Apache License
/** * origin method: (XXX)X// ww w . j a v a2 s.c o m * <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; }