Examples with Label org.datanucleus.enhancer.asm.Label used on opensource projects

Example 16 with Label

use of org.datanucleus.enhancer.asm.Label in project datanucleus-core by datanucleus.

the class ReplaceStateManager method execute.

/**
 * Method to add the contents of the class method.
 */
public void execute() {
    visitor.visitCode();
    Label startLabel = new Label();
    visitor.visitLabel(startLabel);
    visitor.visitVarInsn(Opcodes.ALOAD, 0);
    visitor.visitFieldInsn(Opcodes.GETFIELD, getClassEnhancer().getASMClassName(), getNamer().getStateManagerFieldName(), getNamer().getStateManagerDescriptor());
    Label l1 = new Label();
    visitor.visitJumpInsn(Opcodes.IFNULL, l1);
    visitor.visitVarInsn(Opcodes.ALOAD, 0);
    visitor.visitVarInsn(Opcodes.ALOAD, 0);
    visitor.visitFieldInsn(Opcodes.GETFIELD, getClassEnhancer().getASMClassName(), getNamer().getStateManagerFieldName(), getNamer().getStateManagerDescriptor());
    visitor.visitVarInsn(Opcodes.ALOAD, 0);
    visitor.visitVarInsn(Opcodes.ALOAD, 1);
    visitor.visitMethodInsn(Opcodes.INVOKEINTERFACE, getNamer().getStateManagerAsmClassName(), "replacingStateManager", "(" + getNamer().getPersistableDescriptor() + getNamer().getStateManagerDescriptor() + ")" + getNamer().getStateManagerDescriptor());
    visitor.visitFieldInsn(Opcodes.PUTFIELD, getClassEnhancer().getASMClassName(), getNamer().getStateManagerFieldName(), getNamer().getStateManagerDescriptor());
    Label l3 = new Label();
    visitor.visitJumpInsn(Opcodes.GOTO, l3);
    visitor.visitLabel(l1);
    visitor.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
    visitor.visitVarInsn(Opcodes.ALOAD, 1);
    visitor.visitMethodInsn(Opcodes.INVOKESTATIC, getNamer().getImplHelperAsmClassName(), "checkAuthorizedStateManager", "(L" + getNamer().getStateManagerAsmClassName() + ";)V");
    visitor.visitVarInsn(Opcodes.ALOAD, 0);
    visitor.visitVarInsn(Opcodes.ALOAD, 1);
    visitor.visitFieldInsn(Opcodes.PUTFIELD, getClassEnhancer().getASMClassName(), getNamer().getStateManagerFieldName(), getNamer().getStateManagerDescriptor());
    visitor.visitVarInsn(Opcodes.ALOAD, 0);
    visitor.visitInsn(Opcodes.ICONST_1);
    visitor.visitFieldInsn(Opcodes.PUTFIELD, getClassEnhancer().getASMClassName(), getNamer().getFlagsFieldName(), "B");
    visitor.visitLabel(l3);
    visitor.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
    visitor.visitInsn(Opcodes.RETURN);
    Label endLabel = new Label();
    visitor.visitLabel(endLabel);
    visitor.visitLocalVariable("this", getClassEnhancer().getClassDescriptor(), null, startLabel, endLabel, 0);
    visitor.visitLocalVariable(argNames[0], getNamer().getStateManagerDescriptor(), null, startLabel, endLabel, 1);
    visitor.visitMaxs(4, 2);
    visitor.visitEnd();
}

Example 17 with Label

use of org.datanucleus.enhancer.asm.Label in project datanucleus-core by datanucleus.

the class CopyFields method execute.

/**
 * Method to add the contents of the class method.
 */
public void execute() {
    visitor.visitCode();
    Label l0 = new Label();
    visitor.visitLabel(l0);
    visitor.visitVarInsn(Opcodes.ALOAD, 0);
    visitor.visitFieldInsn(Opcodes.GETFIELD, getClassEnhancer().getASMClassName(), getNamer().getStateManagerFieldName(), getNamer().getStateManagerDescriptor());
    Label l1 = new Label();
    visitor.visitJumpInsn(Opcodes.IFNONNULL, l1);
    visitor.visitTypeInsn(Opcodes.NEW, "java/lang/IllegalStateException");
    visitor.visitInsn(Opcodes.DUP);
    visitor.visitLdcInsn("state manager is null");
    visitor.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/IllegalStateException", "<init>", "(Ljava/lang/String;)V");
    visitor.visitInsn(Opcodes.ATHROW);
    visitor.visitLabel(l1);
    visitor.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
    visitor.visitVarInsn(Opcodes.ALOAD, 2);
    Label l3 = new Label();
    visitor.visitJumpInsn(Opcodes.IFNONNULL, l3);
    visitor.visitTypeInsn(Opcodes.NEW, "java/lang/IllegalStateException");
    visitor.visitInsn(Opcodes.DUP);
    visitor.visitLdcInsn("fieldNumbers is null");
    visitor.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/IllegalStateException", "<init>", "(Ljava/lang/String;)V");
    visitor.visitInsn(Opcodes.ATHROW);
    visitor.visitLabel(l3);
    visitor.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
    visitor.visitVarInsn(Opcodes.ALOAD, 1);
    visitor.visitTypeInsn(Opcodes.INSTANCEOF, getClassEnhancer().getASMClassName());
    Label l5 = new Label();
    visitor.visitJumpInsn(Opcodes.IFNE, l5);
    visitor.visitTypeInsn(Opcodes.NEW, "java/lang/IllegalArgumentException");
    visitor.visitInsn(Opcodes.DUP);
    visitor.visitLdcInsn("object is not an object of type " + getClassEnhancer().getASMClassName().replace('/', '.'));
    visitor.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/IllegalArgumentException", "<init>", "(Ljava/lang/String;)V");
    visitor.visitInsn(Opcodes.ATHROW);
    visitor.visitLabel(l5);
    visitor.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
    visitor.visitVarInsn(Opcodes.ALOAD, 1);
    visitor.visitTypeInsn(Opcodes.CHECKCAST, getClassEnhancer().getASMClassName());
    visitor.visitVarInsn(Opcodes.ASTORE, 3);
    Label l9 = new Label();
    visitor.visitLabel(l9);
    visitor.visitVarInsn(Opcodes.ALOAD, 0);
    visitor.visitFieldInsn(Opcodes.GETFIELD, getClassEnhancer().getASMClassName(), getNamer().getStateManagerFieldName(), getNamer().getStateManagerDescriptor());
    visitor.visitVarInsn(Opcodes.ALOAD, 3);
    visitor.visitFieldInsn(Opcodes.GETFIELD, getClassEnhancer().getASMClassName(), getNamer().getStateManagerFieldName(), getNamer().getStateManagerDescriptor());
    Label l10 = new Label();
    visitor.visitJumpInsn(Opcodes.IF_ACMPEQ, l10);
    visitor.visitTypeInsn(Opcodes.NEW, "java/lang/IllegalArgumentException");
    visitor.visitInsn(Opcodes.DUP);
    visitor.visitLdcInsn("state managers do not match");
    visitor.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/IllegalArgumentException", "<init>", "(Ljava/lang/String;)V");
    visitor.visitInsn(Opcodes.ATHROW);
    visitor.visitLabel(l10);
    visitor.visitFrame(Opcodes.F_APPEND, 1, new Object[] { getClassEnhancer().getASMClassName() }, 0, null);
    visitor.visitVarInsn(Opcodes.ALOAD, 2);
    visitor.visitInsn(Opcodes.ARRAYLENGTH);
    visitor.visitInsn(Opcodes.ICONST_1);
    visitor.visitInsn(Opcodes.ISUB);
    visitor.visitVarInsn(Opcodes.ISTORE, 4);
    Label l12 = new Label();
    visitor.visitLabel(l12);
    visitor.visitVarInsn(Opcodes.ILOAD, 4);
    Label l13 = new Label();
    visitor.visitJumpInsn(Opcodes.IFLT, l13);
    Label l14 = new Label();
    visitor.visitLabel(l14);
    visitor.visitFrame(Opcodes.F_APPEND, 1, new Object[] { Opcodes.INTEGER }, 0, null);
    visitor.visitVarInsn(Opcodes.ALOAD, 0);
    visitor.visitVarInsn(Opcodes.ALOAD, 3);
    visitor.visitVarInsn(Opcodes.ALOAD, 2);
    visitor.visitVarInsn(Opcodes.ILOAD, 4);
    visitor.visitInsn(Opcodes.IALOAD);
    visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, getClassEnhancer().getASMClassName(), getNamer().getCopyFieldMethodName(), "(" + getClassEnhancer().getClassDescriptor() + "I)V");
    visitor.visitIincInsn(4, -1);
    visitor.visitVarInsn(Opcodes.ILOAD, 4);
    visitor.visitJumpInsn(Opcodes.IFGE, l14);
    visitor.visitLabel(l13);
    visitor.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
    visitor.visitInsn(Opcodes.RETURN);
    Label l16 = new Label();
    visitor.visitLabel(l16);
    visitor.visitLocalVariable("this", getClassEnhancer().getClassDescriptor(), null, l0, l16, 0);
    visitor.visitLocalVariable(argNames[0], EnhanceUtils.CD_Object, null, l0, l16, 1);
    visitor.visitLocalVariable(argNames[1], "[I", null, l0, l16, 2);
    visitor.visitLocalVariable("other", getClassEnhancer().getClassDescriptor(), null, l9, l16, 3);
    visitor.visitLocalVariable("i", "I", null, l12, l16, 4);
    visitor.visitMaxs(4, 5);
    visitor.visitEnd();
}

Example 18 with Label

use of org.datanucleus.enhancer.asm.Label in project datanucleus-core by datanucleus.

the class CopyKeyFieldsFromObjectId method execute.

/**
 * Method to add the contents of the class method.
 */
public void execute() {
    visitor.visitCode();
    ClassMetaData cmd = enhancer.getClassMetaData();
    if (cmd.getIdentityType() == IdentityType.APPLICATION) {
        // application identity
        if (!cmd.isInstantiable()) {
            // Application identity but mapped-superclass with no PK defined, so just "return"
            Label startLabel = new Label();
            visitor.visitLabel(startLabel);
            visitor.visitInsn(Opcodes.RETURN);
            Label endLabel = new Label();
            visitor.visitLabel(endLabel);
            visitor.visitLocalVariable("this", getClassEnhancer().getClassDescriptor(), null, startLabel, endLabel, 0);
            visitor.visitLocalVariable(argNames[0], getNamer().getObjectIdFieldConsumerDescriptor(), null, startLabel, endLabel, 1);
            visitor.visitLocalVariable(argNames[1], EnhanceUtils.CD_Object, null, startLabel, endLabel, 2);
            visitor.visitMaxs(0, 3);
        } else {
            int[] pkFieldNums = cmd.getPKMemberPositions();
            String objectIdClass = cmd.getObjectidClass();
            String ACN_objectIdClass = objectIdClass.replace('.', '/');
            if (IdentityUtils.isSingleFieldIdentityClass(objectIdClass)) {
                // SingleFieldIdentity
                Label startLabel = new Label();
                visitor.visitLabel(startLabel);
                // if (fc == null) throw new IllegalArgumentException("...");
                visitor.visitVarInsn(Opcodes.ALOAD, 1);
                Label l1 = new Label();
                visitor.visitJumpInsn(Opcodes.IFNONNULL, l1);
                visitor.visitTypeInsn(Opcodes.NEW, "java/lang/IllegalArgumentException");
                visitor.visitInsn(Opcodes.DUP);
                visitor.visitLdcInsn("ObjectIdFieldConsumer is null");
                visitor.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/IllegalArgumentException", "<init>", "(Ljava/lang/String;)V");
                visitor.visitInsn(Opcodes.ATHROW);
                // if (!(oid instanceof LongIdentity)) throw new ClassCastException("...");
                visitor.visitLabel(l1);
                visitor.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
                visitor.visitVarInsn(Opcodes.ALOAD, 2);
                visitor.visitTypeInsn(Opcodes.INSTANCEOF, ACN_objectIdClass);
                Label l5 = new Label();
                visitor.visitJumpInsn(Opcodes.IFNE, l5);
                visitor.visitTypeInsn(Opcodes.NEW, "java/lang/ClassCastException");
                visitor.visitInsn(Opcodes.DUP);
                visitor.visitLdcInsn("oid is not instanceof " + objectIdClass);
                visitor.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/ClassCastException", "<init>", "(Ljava/lang/String;)V");
                visitor.visitInsn(Opcodes.ATHROW);
                // XXXIdentity o = (XXXIdentity) oid;
                visitor.visitLabel(l5);
                visitor.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
                visitor.visitVarInsn(Opcodes.ALOAD, 2);
                visitor.visitTypeInsn(Opcodes.CHECKCAST, ACN_objectIdClass);
                visitor.visitVarInsn(Opcodes.ASTORE, 3);
                // fc.storeXXXField(1, o.getKey());
                Label l9 = new Label();
                visitor.visitLabel(l9);
                visitor.visitVarInsn(Opcodes.ALOAD, 1);
                EnhanceUtils.addBIPUSHToMethod(visitor, pkFieldNums[0]);
                AbstractMemberMetaData fmd = cmd.getMetaDataForManagedMemberAtAbsolutePosition(pkFieldNums[0]);
                Class primitiveType = ClassUtils.getPrimitiveTypeForType(fmd.getType());
                if (primitiveType != null) {
                    // The PK field is a primitive wrapper so create wrapper from getKey()
                    String ACN_fieldType = fmd.getTypeName().replace('.', '/');
                    String getKeyReturnDesc = Type.getDescriptor(primitiveType);
                    visitor.visitVarInsn(Opcodes.ALOAD, 3);
                    visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, ACN_objectIdClass, "getKey", "()" + getKeyReturnDesc);
                    visitor.visitMethodInsn(Opcodes.INVOKESTATIC, ACN_fieldType, "valueOf", "(" + getKeyReturnDesc + ")L" + ACN_fieldType + ";");
                    visitor.visitMethodInsn(Opcodes.INVOKEINTERFACE, getNamer().getObjectIdFieldConsumerAsmClassName(), "storeObjectField", "(I" + EnhanceUtils.CD_Object + ")V");
                } else {
                    // PK field isn't a primitive wrapper
                    visitor.visitVarInsn(Opcodes.ALOAD, 3);
                    visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, ACN_objectIdClass, "getKey", "()" + getNamer().getTypeDescriptorForSingleFieldIdentityGetKey(objectIdClass));
                    visitor.visitMethodInsn(Opcodes.INVOKEINTERFACE, getNamer().getObjectIdFieldConsumerAsmClassName(), "store" + getNamer().getTypeNameForUseWithSingleFieldIdentity(objectIdClass) + "Field", "(I" + getNamer().getTypeDescriptorForSingleFieldIdentityGetKey(objectIdClass) + ")V");
                }
                visitor.visitInsn(Opcodes.RETURN);
                Label endLabel = new Label();
                visitor.visitLabel(endLabel);
                visitor.visitLocalVariable("this", getClassEnhancer().getClassDescriptor(), null, startLabel, endLabel, 0);
                visitor.visitLocalVariable(argNames[0], getNamer().getObjectIdFieldConsumerDescriptor(), null, startLabel, endLabel, 1);
                visitor.visitLocalVariable(argNames[1], EnhanceUtils.CD_Object, null, startLabel, endLabel, 2);
                visitor.visitLocalVariable("o", getNamer().getSingleFieldIdentityDescriptor(objectIdClass), null, l9, endLabel, 3);
                visitor.visitMaxs(3, 4);
            } else {
                // User-provided app identity, and compound identity
                // Put try-catch around the field setting (for reflection cases)
                Label l0 = new Label();
                Label l1 = new Label();
                Label l2 = new Label();
                visitor.visitTryCatchBlock(l0, l1, l2, "java/lang/Exception");
                Label startLabel = new Label();
                visitor.visitLabel(startLabel);
                visitor.visitVarInsn(Opcodes.ALOAD, 1);
                Label l4 = new Label();
                visitor.visitJumpInsn(Opcodes.IFNONNULL, l4);
                visitor.visitTypeInsn(Opcodes.NEW, "java/lang/IllegalArgumentException");
                visitor.visitInsn(Opcodes.DUP);
                visitor.visitLdcInsn("ObjectIdFieldConsumer is null");
                visitor.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/IllegalArgumentException", "<init>", "(Ljava/lang/String;)V");
                visitor.visitInsn(Opcodes.ATHROW);
                visitor.visitLabel(l4);
                visitor.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
                visitor.visitVarInsn(Opcodes.ALOAD, 2);
                visitor.visitTypeInsn(Opcodes.INSTANCEOF, ACN_objectIdClass);
                Label l5 = new Label();
                visitor.visitJumpInsn(Opcodes.IFNE, l5);
                visitor.visitTypeInsn(Opcodes.NEW, "java/lang/ClassCastException");
                visitor.visitInsn(Opcodes.DUP);
                visitor.visitLdcInsn("oid is not instanceof " + objectIdClass);
                visitor.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/ClassCastException", "<init>", "(Ljava/lang/String;)V");
                visitor.visitInsn(Opcodes.ATHROW);
                visitor.visitLabel(l5);
                visitor.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
                visitor.visitVarInsn(Opcodes.ALOAD, 2);
                visitor.visitTypeInsn(Opcodes.CHECKCAST, ACN_objectIdClass);
                visitor.visitVarInsn(Opcodes.ASTORE, 3);
                visitor.visitLabel(l0);
                // Copy the PK members using the appropriate method for each field/property
                Label reflectionFieldStart = null;
                for (int i = 0; i < pkFieldNums.length; i++) {
                    AbstractMemberMetaData fmd = enhancer.getClassMetaData().getMetaDataForManagedMemberAtAbsolutePosition(pkFieldNums[i]);
                    String fieldTypeDesc = Type.getDescriptor(fmd.getType());
                    String typeMethodName = EnhanceUtils.getTypeNameForPersistableMethod(fmd.getType());
                    int pkFieldModifiers = ClassUtils.getModifiersForFieldOfClass(enhancer.getClassLoaderResolver(), objectIdClass, fmd.getName());
                    // Check if the PK field type is a PC (CompoundIdentity)
                    AbstractClassMetaData acmd = enhancer.getMetaDataManager().getMetaDataForClass(fmd.getType(), enhancer.getClassLoaderResolver());
                    if (acmd != null && acmd.getIdentityType() != IdentityType.NONDURABLE) {
                        // CompoundIdentity, this field of the PK is a PC
                        visitor.visitVarInsn(Opcodes.ALOAD, 1);
                        EnhanceUtils.addBIPUSHToMethod(visitor, fmd.getFieldId());
                        visitor.visitVarInsn(Opcodes.ALOAD, 0);
                        visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, getClassEnhancer().getASMClassName(), getNamer().getGetExecutionContextMethodName(), "()L" + getNamer().getExecutionContextAsmClassName() + ";");
                        visitor.visitVarInsn(Opcodes.ALOAD, 3);
                        // TODO Cater for property, or private field cases
                        visitor.visitFieldInsn(Opcodes.GETFIELD, ACN_objectIdClass, fmd.getName(), "L" + acmd.getObjectidClass().replace('.', '/') + ";");
                        visitor.visitInsn(Opcodes.ICONST_0);
                        visitor.visitMethodInsn(Opcodes.INVOKEINTERFACE, getNamer().getExecutionContextAsmClassName(), "findObject", "(Ljava/lang/Object;Z)Ljava/lang/Object;");
                        visitor.visitMethodInsn(Opcodes.INVOKEINTERFACE, getNamer().getObjectIdFieldConsumerAsmClassName(), "storeObjectField", "(ILjava/lang/Object;)V");
                    } else {
                        // Standard application-identity
                        if (fmd instanceof PropertyMetaData) {
                            // Field in PK is property, hence use getXXX in PK
                            visitor.visitVarInsn(Opcodes.ALOAD, 1);
                            EnhanceUtils.addBIPUSHToMethod(visitor, fmd.getFieldId());
                            visitor.visitVarInsn(Opcodes.ALOAD, 3);
                            visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, ACN_objectIdClass, ClassUtils.getJavaBeanGetterName(fmd.getName(), fmd.getTypeName().equals("boolean")), "()" + Type.getDescriptor(fmd.getType()));
                            visitor.visitMethodInsn(Opcodes.INVOKEINTERFACE, getNamer().getObjectIdFieldConsumerAsmClassName(), "store" + typeMethodName + "Field", "(I" + EnhanceUtils.getTypeDescriptorForEnhanceMethod(fmd.getType()) + ")V");
                        } else if (Modifier.isPublic(pkFieldModifiers)) {
                            // Field in PK is public so access directly
                            visitor.visitVarInsn(Opcodes.ALOAD, 1);
                            EnhanceUtils.addBIPUSHToMethod(visitor, fmd.getFieldId());
                            visitor.visitVarInsn(Opcodes.ALOAD, 3);
                            visitor.visitFieldInsn(Opcodes.GETFIELD, ACN_objectIdClass, fmd.getName(), fieldTypeDesc);
                            visitor.visitMethodInsn(Opcodes.INVOKEINTERFACE, getNamer().getObjectIdFieldConsumerAsmClassName(), "store" + typeMethodName + "Field", "(I" + EnhanceUtils.getTypeDescriptorForEnhanceMethod(fmd.getType()) + ")V");
                        } else {
                            // Field in PK is protected/private so use reflection, generating
                            // "Field field = o.getClass().getDeclaredField("pmIDFloat");"
                            // "field.setAccessible(true);"
                            // "fc.storeObjectField(1, field.get(o));"
                            visitor.visitVarInsn(Opcodes.ALOAD, 3);
                            visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Object", "getClass", "()Ljava/lang/Class;");
                            visitor.visitLdcInsn(fmd.getName());
                            visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Class", "getDeclaredField", "(Ljava/lang/String;)Ljava/lang/reflect/Field;");
                            visitor.visitVarInsn(Opcodes.ASTORE, 4);
                            if (reflectionFieldStart == null) {
                                reflectionFieldStart = new Label();
                                visitor.visitLabel(reflectionFieldStart);
                            }
                            visitor.visitVarInsn(Opcodes.ALOAD, 4);
                            visitor.visitInsn(Opcodes.ICONST_1);
                            visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/reflect/Field", "setAccessible", "(Z)V");
                            visitor.visitVarInsn(Opcodes.ALOAD, 1);
                            EnhanceUtils.addBIPUSHToMethod(visitor, fmd.getFieldId());
                            visitor.visitVarInsn(Opcodes.ALOAD, 4);
                            visitor.visitVarInsn(Opcodes.ALOAD, 3);
                            if (fmd.getTypeName().equals("boolean")) {
                                visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/reflect/Field", "getBoolean", "(Ljava/lang/Object;)Z");
                            } else if (fmd.getTypeName().equals("byte")) {
                                visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/reflect/Field", "getByte", "(Ljava/lang/Object;)B");
                            } else if (fmd.getTypeName().equals("char")) {
                                visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/reflect/Field", "getChar", "(Ljava/lang/Object;)C");
                            } else if (fmd.getTypeName().equals("double")) {
                                visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/reflect/Field", "getDouble", "(Ljava/lang/Object;)D");
                            } else if (fmd.getTypeName().equals("float")) {
                                visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/reflect/Field", "getFloat", "(Ljava/lang/Object;)F");
                            } else if (fmd.getTypeName().equals("int")) {
                                visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/reflect/Field", "getInt", "(Ljava/lang/Object;)I");
                            } else if (fmd.getTypeName().equals("long")) {
                                visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/reflect/Field", "getLong", "(Ljava/lang/Object;)L");
                            } else if (fmd.getTypeName().equals("short")) {
                                visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/reflect/Field", "getShort", "(Ljava/lang/Object;)S");
                            } else if (fmd.getTypeName().equals("java.lang.String")) {
                                visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/reflect/Field", "get", "(Ljava/lang/Object;)Ljava/lang/Object;");
                                visitor.visitTypeInsn(Opcodes.CHECKCAST, "java/lang/String");
                            } else {
                                visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/reflect/Field", "get", "(Ljava/lang/Object;)Ljava/lang/Object;");
                            }
                            visitor.visitMethodInsn(Opcodes.INVOKEINTERFACE, getNamer().getObjectIdFieldConsumerAsmClassName(), "store" + typeMethodName + "Field", "(I" + EnhanceUtils.getTypeDescriptorForEnhanceMethod(fmd.getType()) + ")V");
                        }
                    }
                }
                // catch of the try-catch
                visitor.visitLabel(l1);
                Label l20 = new Label();
                visitor.visitJumpInsn(Opcodes.GOTO, l20);
                visitor.visitLabel(l2);
                visitor.visitFrame(Opcodes.F_FULL, 4, new Object[] { getClassEnhancer().getASMClassName(), getClassEnhancer().getNamer().getObjectIdFieldConsumerAsmClassName(), "java/lang/Object", ACN_objectIdClass }, 1, new Object[] { "java/lang/Exception" });
                visitor.visitVarInsn(Opcodes.ASTORE, 4);
                visitor.visitLabel(l20);
                visitor.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
                visitor.visitInsn(Opcodes.RETURN);
                Label endLabel = new Label();
                visitor.visitLabel(endLabel);
                visitor.visitLocalVariable("this", getClassEnhancer().getClassDescriptor(), null, startLabel, endLabel, 0);
                visitor.visitLocalVariable(argNames[0], getNamer().getObjectIdFieldConsumerDescriptor(), null, startLabel, endLabel, 1);
                visitor.visitLocalVariable(argNames[1], EnhanceUtils.CD_Object, null, startLabel, endLabel, 2);
                visitor.visitLocalVariable("o", "L" + ACN_objectIdClass + ";", null, l0, endLabel, 3);
                if (reflectionFieldStart != null) {
                    visitor.visitLocalVariable("field", "Ljava/lang/reflect/Field;", null, reflectionFieldStart, l2, 4);
                    visitor.visitMaxs(4, 5);
                } else {
                    visitor.visitMaxs(4, 4);
                }
            }
        }
    } else {
        // datastore/nondurable identity
        Label startLabel = new Label();
        visitor.visitLabel(startLabel);
        visitor.visitInsn(Opcodes.RETURN);
        Label endLabel = new Label();
        visitor.visitLabel(endLabel);
        visitor.visitLocalVariable("this", getClassEnhancer().getClassDescriptor(), null, startLabel, endLabel, 0);
        visitor.visitLocalVariable(argNames[0], "L" + getNamer().getObjectIdFieldConsumerAsmClassName() + ";", null, startLabel, endLabel, 1);
        visitor.visitLocalVariable(argNames[1], EnhanceUtils.CD_Object, null, startLabel, endLabel, 2);
        visitor.visitMaxs(0, 3);
    }
    visitor.visitEnd();
}

Example 19 with Label

use of org.datanucleus.enhancer.asm.Label in project datanucleus-core by datanucleus.

the class IsDirty method execute.

/**
 * Method to add the contents of the class method.
 */
public void execute() {
    visitor.visitCode();
    boolean detachable = enhancer.getClassMetaData().isDetachable();
    Label startLabel = new Label();
    visitor.visitLabel(startLabel);
    visitor.visitVarInsn(Opcodes.ALOAD, 0);
    visitor.visitFieldInsn(Opcodes.GETFIELD, getClassEnhancer().getASMClassName(), getNamer().getStateManagerFieldName(), getNamer().getStateManagerDescriptor());
    Label l1 = new Label();
    visitor.visitJumpInsn(Opcodes.IFNULL, l1);
    Label l2 = new Label();
    visitor.visitLabel(l2);
    visitor.visitVarInsn(Opcodes.ALOAD, 0);
    visitor.visitFieldInsn(Opcodes.GETFIELD, getClassEnhancer().getASMClassName(), getNamer().getStateManagerFieldName(), getNamer().getStateManagerDescriptor());
    visitor.visitVarInsn(Opcodes.ALOAD, 0);
    visitor.visitMethodInsn(Opcodes.INVOKEINTERFACE, getNamer().getStateManagerAsmClassName(), "isDirty", "(" + getNamer().getPersistableDescriptor() + ")Z");
    visitor.visitInsn(Opcodes.IRETURN);
    visitor.visitLabel(l1);
    visitor.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
    if (!detachable) {
        visitor.visitInsn(Opcodes.ICONST_0);
        visitor.visitInsn(Opcodes.IRETURN);
    } else {
        visitor.visitVarInsn(Opcodes.ALOAD, 0);
        visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, getClassEnhancer().getASMClassName(), getNamer().getIsDetachedMethodName(), "()Z");
        Label l3 = new Label();
        visitor.visitJumpInsn(Opcodes.IFNE, l3);
        visitor.visitInsn(Opcodes.ICONST_0);
        visitor.visitInsn(Opcodes.IRETURN);
        visitor.visitLabel(l3);
        visitor.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        visitor.visitVarInsn(Opcodes.ALOAD, 0);
        visitor.visitFieldInsn(Opcodes.GETFIELD, getClassEnhancer().getASMClassName(), getNamer().getDetachedStateFieldName(), "[" + EnhanceUtils.CD_Object);
        visitor.visitInsn(Opcodes.ICONST_3);
        visitor.visitInsn(Opcodes.AALOAD);
        visitor.visitTypeInsn(Opcodes.CHECKCAST, "java/util/BitSet");
        visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/util/BitSet", "length", "()I");
        Label l5 = new Label();
        visitor.visitJumpInsn(Opcodes.IFGT, l5);
        visitor.visitInsn(Opcodes.ICONST_0);
        visitor.visitInsn(Opcodes.IRETURN);
        visitor.visitLabel(l5);
        visitor.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        visitor.visitInsn(Opcodes.ICONST_1);
        visitor.visitInsn(Opcodes.IRETURN);
    }
    Label endLabel = new Label();
    visitor.visitLabel(endLabel);
    visitor.visitLocalVariable("this", getClassEnhancer().getClassDescriptor(), null, startLabel, endLabel, 0);
    visitor.visitMaxs(2, 1);
    visitor.visitEnd();
}

Example 20 with Label

use of org.datanucleus.enhancer.asm.Label in project datanucleus-core by datanucleus.

the class IsXXX method execute.

/**
 * Method to add the contents of the class method.
 * Creates the method as follows
 * <pre>
 * return dnStateManager != null ? dnStateManager.isXXX(this) : false;
 * </pre>
 * where "isXXX" is replaced by the output of "getStateManagerIsMethod"
 */
public void execute() {
    visitor.visitCode();
    Label l0 = new Label();
    visitor.visitLabel(l0);
    visitor.visitVarInsn(Opcodes.ALOAD, 0);
    visitor.visitFieldInsn(Opcodes.GETFIELD, getClassEnhancer().getASMClassName(), getNamer().getStateManagerFieldName(), getNamer().getStateManagerDescriptor());
    Label l1 = new Label();
    visitor.visitJumpInsn(Opcodes.IFNULL, l1);
    visitor.visitVarInsn(Opcodes.ALOAD, 0);
    visitor.visitFieldInsn(Opcodes.GETFIELD, getClassEnhancer().getASMClassName(), getNamer().getStateManagerFieldName(), getNamer().getStateManagerDescriptor());
    visitor.visitVarInsn(Opcodes.ALOAD, 0);
    visitor.visitMethodInsn(Opcodes.INVOKEINTERFACE, getNamer().getStateManagerAsmClassName(), getStateManagerIsMethod(), "(" + getNamer().getPersistableDescriptor() + ")Z");
    Label l2 = new Label();
    visitor.visitJumpInsn(Opcodes.GOTO, l2);
    visitor.visitLabel(l1);
    visitor.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
    visitor.visitInsn(Opcodes.ICONST_0);
    visitor.visitLabel(l2);
    visitor.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { Opcodes.INTEGER });
    visitor.visitInsn(Opcodes.IRETURN);
    Label l3 = new Label();
    visitor.visitLabel(l3);
    visitor.visitLocalVariable("this", getClassEnhancer().getClassDescriptor(), null, l0, l3, 0);
    visitor.visitMaxs(2, 1);
    visitor.visitEnd();
}