Examples with ClassWriter org.mvel2.asm.ClassWriter used on opensource projects

Example 26 with ClassWriter

use of org.mvel2.asm.ClassWriter in project drools by kiegroup.

the class TraitMapPropertyWrapperClassBuilderImpl method buildContainsValue.

protected void buildContainsValue(ClassWriter cw, String wrapperName, ClassDefinition trait, ClassDefinition core) {
    String internalWrapper = BuildUtils.getInternalType(wrapperName);
    MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "containsValue", "(" + Type.getDescriptor(Object.class) + ")Z", null, null);
    mv.visitCode();
    // null check
    mv.visitVarInsn(ALOAD, 1);
    Label l99 = new Label();
    mv.visitJumpInsn(IFNONNULL, l99);
    for (FieldDefinition field : core.getFieldsDefinitions()) {
        if (!BuildUtils.isPrimitive(field.getTypeName())) {
            extractAndTestNotNull(mv, wrapperName, core, field);
        }
    }
    mv.visitVarInsn(ALOAD, 0);
    mv.visitFieldInsn(GETFIELD, internalWrapper, "map", Type.getDescriptor(Map.class));
    mv.visitInsn(ACONST_NULL);
    mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(Map.class), "containsValue", "(" + Type.getDescriptor(Object.class) + ")Z", true);
    mv.visitInsn(IRETURN);
    mv.visitLabel(l99);
    // non-null values check
    for (FieldDefinition field : core.getFieldsDefinitions()) {
        mv.visitVarInsn(ALOAD, 1);
        TraitFactoryImpl.invokeExtractor(mv, wrapperName, core, field);
        if (BuildUtils.isPrimitive(field.getTypeName())) {
            TraitFactoryImpl.valueOf(mv, field.getTypeName());
        }
        mv.visitMethodInsn(INVOKEVIRTUAL, Type.getInternalName(Object.class), "equals", "(" + Type.getDescriptor(Object.class) + ")Z", false);
        Label l0 = new Label();
        mv.visitJumpInsn(IFEQ, l0);
        mv.visitInsn(ICONST_1);
        mv.visitInsn(IRETURN);
        mv.visitLabel(l0);
    }
    mv.visitVarInsn(ALOAD, 0);
    mv.visitFieldInsn(GETFIELD, internalWrapper, "map", Type.getDescriptor(Map.class));
    mv.visitVarInsn(ALOAD, 1);
    mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(Map.class), "containsValue", "(" + Type.getDescriptor(Object.class) + ")Z", true);
    mv.visitInsn(IRETURN);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}

Example 27 with ClassWriter

use of org.mvel2.asm.ClassWriter in project drools by kiegroup.

the class TraitMapPropertyWrapperClassBuilderImpl method buildContainsKey.

protected void buildContainsKey(ClassWriter cw, String name, ClassDefinition core) {
    String internalWrapper = BuildUtils.getInternalType(name);
    MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "containsKey", "(" + Type.getDescriptor(Object.class) + ")Z", null, null);
    mv.visitCode();
    for (FieldDefinition field : core.getFieldsDefinitions()) {
        invokeContainsKey(mv, field.getName());
    }
    mv.visitVarInsn(ALOAD, 0);
    mv.visitFieldInsn(GETFIELD, internalWrapper, "map", Type.getDescriptor(Map.class));
    mv.visitVarInsn(ALOAD, 1);
    mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(Map.class), "containsKey", "(" + Type.getDescriptor(Object.class) + ")Z", true);
    mv.visitInsn(IRETURN);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}

Example 28 with ClassWriter

use of org.mvel2.asm.ClassWriter in project drools by kiegroup.

the class TraitMapPropertyWrapperClassBuilderImpl method buildRemove.

protected void buildRemove(ClassWriter cw, String wrapperName, ClassDefinition trait, ClassDefinition core, BitSet mask) {
    String internalWrapper = BuildUtils.getInternalType(wrapperName);
    MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "remove", "(" + Type.getDescriptor(Object.class) + ")" + Type.getDescriptor(Object.class), null, null);
    mv.visitCode();
    for (FieldDefinition field : core.getFieldsDefinitions()) {
        invokeRemove(mv, wrapperName, core, field.getName(), field);
    }
    int j = 0;
    for (FieldDefinition field : trait.getFieldsDefinitions()) {
        boolean isSoftField = TraitRegistryImpl.isSoftField(field, j++, mask);
        if (isSoftField) {
            mv.visitLdcInsn(field.getName());
            mv.visitVarInsn(ALOAD, 1);
            mv.visitMethodInsn(INVOKEVIRTUAL, Type.getInternalName(String.class), "equals", "(" + Type.getDescriptor(Object.class) + ")Z", false);
            Label l2 = new Label();
            mv.visitJumpInsn(IFEQ, l2);
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, internalWrapper, "map", Type.getDescriptor(Map.class));
            mv.visitLdcInsn(field.getName());
            mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(Map.class), "get", "(" + Type.getDescriptor(Object.class) + ")" + Type.getDescriptor(Object.class), true);
            mv.visitVarInsn(ASTORE, 2);
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, internalWrapper, "map", Type.getDescriptor(Map.class));
            mv.visitLdcInsn(field.getName());
            mv.visitInsn(AsmUtil.zero(field.getTypeName()));
            if (BuildUtils.isPrimitive(field.getTypeName())) {
                TraitFactoryImpl.valueOf(mv, field.getTypeName());
            }
            mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(Map.class), "put", "(" + Type.getDescriptor(Object.class) + Type.getDescriptor(Object.class) + ")" + Type.getDescriptor(Object.class), true);
            mv.visitInsn(POP);
            mv.visitVarInsn(ALOAD, 2);
            mv.visitInsn(ARETURN);
            mv.visitLabel(l2);
        }
    }
    mv.visitVarInsn(ALOAD, 0);
    mv.visitFieldInsn(GETFIELD, internalWrapper, "map", Type.getDescriptor(Map.class));
    mv.visitVarInsn(ALOAD, 1);
    mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(Map.class), "remove", "(" + Type.getDescriptor(Object.class) + ")" + Type.getDescriptor(Object.class), true);
    mv.visitVarInsn(ASTORE, 2);
    mv.visitVarInsn(ALOAD, 2);
    mv.visitInsn(ARETURN);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}

Example 29 with ClassWriter

use of org.mvel2.asm.ClassWriter in project drools by kiegroup.

the class TraitMapPropertyWrapperClassBuilderImpl method buildClass.

public byte[] buildClass(ClassDefinition core, ClassLoader classLoader) throws IOException, SecurityException, IllegalArgumentException, ClassNotFoundException, NoSuchMethodException, IllegalAccessException, InvocationTargetException, InstantiationException, NoSuchFieldException {
    FieldVisitor fv;
    MethodVisitor mv;
    // get the method bitmask
    BitSet mask = traitRegistryImpl.getFieldMask(trait.getName(), core.getDefinedClass().getName());
    String name = TraitFactoryImpl.getPropertyWrapperName(trait, core);
    String internalWrapper = BuildUtils.getInternalType(name);
    String descrCore = Type.getDescriptor(core.getDefinedClass());
    String internalCore = Type.getInternalName(core.getDefinedClass());
    ClassWriter cw = createClassWriter(classLoader, ACC_PUBLIC + ACC_SUPER, internalWrapper, Type.getDescriptor(Object.class) + Type.getDescriptor(Map.class) + Type.getDescriptor(MapWrapper.class), // "Ljava/lang/Object;Ljava/util/Map<Ljava/lang/String;Ljava/lang/Object;>;Lorg/drools/factmodel/traits/MapWrapper;",
    Type.getInternalName(Object.class), new String[] { Type.getInternalName(Map.class), Type.getInternalName(MapWrapper.class), Type.getInternalName(Serializable.class) });
    cw.visitInnerClass(Type.getInternalName(Map.Entry.class), Type.getInternalName(Map.class), "Entry", ACC_PUBLIC + ACC_STATIC + ACC_ABSTRACT + ACC_INTERFACE);
    {
        fv = cw.visitField(0, "object", descrCore, null, null);
        fv.visitEnd();
    }
    {
        fv = cw.visitField(0, "map", Type.getDescriptor(Map.class), "Ljava/util/Map<Ljava/lang/String;Ljava/lang/Object;>;", null);
        fv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "(" + descrCore + Type.getDescriptor(Map.class) + ")V", "(" + descrCore + "Ljava/util/Map<Ljava/lang/String;Ljava/lang/Object;>;)V", null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, Type.getInternalName(Object.class), "<init>", "()V", false);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitFieldInsn(PUTFIELD, internalWrapper, "object", descrCore);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 2);
        mv.visitFieldInsn(PUTFIELD, internalWrapper, "map", Type.getDescriptor(Map.class));
        mv.visitVarInsn(ALOAD, 1);
        mv.visitVarInsn(ALOAD, 2);
        mv.visitMethodInsn(INVOKEVIRTUAL, internalCore, "_setDynamicProperties", "(" + Type.getDescriptor(Map.class) + ")V", false);
        initSoftFields(mv, trait, core, internalWrapper, mask, 2);
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();
    }
    buildSize(cw, name, core);
    buildIsEmpty(cw, name, core);
    buildGet(cw, name, core);
    buildPut(cw, name, core);
    buildClear(cw, name, trait, core, mask);
    buildRemove(cw, name, trait, core, mask);
    buildContainsKey(cw, name, core);
    buildContainsValue(cw, name, trait, core);
    buildKeyset(cw, name, core);
    buildValues(cw, name, core);
    buildEntryset(cw, name, core);
    buildCommonMethods(cw, name);
    cw.visitEnd();
    return cw.toByteArray();
}

Example 30 with ClassWriter

use of org.mvel2.asm.ClassWriter in project drools by kiegroup.

the class TraitTripleProxyClassBuilderImpl method buildClass.

public byte[] buildClass(ClassDefinition core, ClassLoader classLoader) throws IOException, SecurityException, IllegalArgumentException, ClassNotFoundException, NoSuchMethodException, IllegalAccessException, InvocationTargetException, InstantiationException, NoSuchFieldException {
    FieldVisitor fv;
    MethodVisitor mv;
    // get the method bitmask
    BitSet mask = traitRegistryImpl.getFieldMask(getTrait().getName(), core.getDefinedClass().getName());
    String name = TraitFactoryImpl.getPropertyWrapperName(getTrait(), core);
    String proxyName = TraitFactoryImpl.getProxyName(getTrait(), core);
    Class<?> traitClass = getTrait().getDefinedClass();
    String internalWrapper = BuildUtils.getInternalType(name);
    String internalProxy = BuildUtils.getInternalType(proxyName);
    String internalCore = Type.getInternalName(core.getDefinedClass());
    String descrCore = Type.getDescriptor(core.getDefinedClass());
    String internalTrait = Type.getInternalName(getTrait().getDefinedClass());
    MixinInfo mixinInfo = findMixinInfo(traitClass);
    ClassWriter cw = createClassWriter(classLoader, ACC_PUBLIC + ACC_SUPER, internalProxy, null, Type.getInternalName(proxyBaseClass), new String[] { internalTrait, Type.getInternalName(Externalizable.class) });
    {
        fv = cw.visitField(ACC_PRIVATE + ACC_FINAL + ACC_STATIC, TraitType.traitNameField, Type.getDescriptor(String.class), null, null);
        fv.visitEnd();
    }
    {
        fv = cw.visitField(ACC_PUBLIC, "object", descrCore, null, null);
        fv.visitEnd();
    }
    {
        fv = cw.visitField(ACC_PRIVATE, "store", Type.getDescriptor(TripleStore.class), null, null);
        fv.visitEnd();
    }
    {
        fv = cw.visitField(ACC_PRIVATE, "storeId", Type.getDescriptor(String.class), null, null);
        fv.visitEnd();
    }
    if (mixinInfo != null) {
        for (Class<?> mixinClass : mixinInfo.mixinClasses) {
            {
                fv = cw.visitField(ACC_PRIVATE, getMixinName(mixinClass), Type.getDescriptor(mixinClass), null, null);
                fv.visitEnd();
            }
        }
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "(" + descrCore + Type.getDescriptor(TripleStore.class) + Type.getDescriptor(TripleFactory.class) + Type.getDescriptor(BitSet.class) + Type.getDescriptor(BitSet.class) + Type.getDescriptor(boolean.class) + ")V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 2);
        mv.visitMethodInsn(INVOKEVIRTUAL, Type.getInternalName(TripleStore.class), "getId", "()" + Type.getDescriptor(String.class), false);
        mv.visitFieldInsn(PUTFIELD, internalProxy, "storeId", Type.getDescriptor(String.class));
        buildConstructorCore(mv, internalProxy, internalWrapper, internalCore, descrCore, mixinInfo);
        initFields(mv, internalProxy);
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "setObject", "(" + Type.getDescriptor(Object.class) + ")V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitTypeInsn(CHECKCAST, internalCore);
        mv.visitFieldInsn(PUTFIELD, internalProxy, "object", descrCore);
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "writeExternal", "(" + Type.getDescriptor(ObjectOutput.class) + ")V", null, new String[] { Type.getInternalName(IOException.class) });
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKESPECIAL, Type.getInternalName(proxyBaseClass), "writeExternal", "(" + Type.getDescriptor(ObjectOutput.class) + ")V", false);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKEVIRTUAL, internalProxy, "getObject", "()" + Type.getDescriptor(TraitableBean.class), false);
        mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(ObjectOutput.class), "writeObject", "(" + Type.getDescriptor(Object.class) + ")V", true);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, internalProxy, "storeId", Type.getDescriptor(String.class));
        mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(ObjectOutput.class), "writeObject", "(" + Type.getDescriptor(Object.class) + ")V", true);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, internalProxy, "store", Type.getDescriptor(TripleStore.class));
        mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(ObjectOutput.class), "writeObject", "(" + Type.getDescriptor(Object.class) + ")V", true);
        mv.visitInsn(RETURN);
        // mv.visitMaxs( 2, 2 );
        mv.visitMaxs(0, 0);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "readExternal", "(" + Type.getDescriptor(ObjectInput.class) + ")V", null, new String[] { Type.getInternalName(IOException.class), Type.getInternalName(ClassNotFoundException.class) });
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKESPECIAL, Type.getInternalName(proxyBaseClass), "readExternal", "(" + Type.getDescriptor(ObjectInput.class) + ")V", false);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(ObjectInput.class), "readObject", "()" + Type.getDescriptor(Object.class), true);
        mv.visitTypeInsn(CHECKCAST, internalCore);
        mv.visitFieldInsn(PUTFIELD, internalProxy, "object", descrCore);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(ObjectInput.class), "readObject", "()" + Type.getDescriptor(Object.class), true);
        mv.visitTypeInsn(CHECKCAST, Type.getInternalName(String.class));
        mv.visitFieldInsn(PUTFIELD, internalProxy, "storeId", Type.getDescriptor(String.class));
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(ObjectInput.class), "readObject", "()" + Type.getDescriptor(Object.class), true);
        mv.visitTypeInsn(CHECKCAST, Type.getInternalName(TripleStore.class));
        mv.visitFieldInsn(PUTFIELD, internalProxy, "store", Type.getDescriptor(TripleStore.class));
        mv.visitInsn(RETURN);
        // mv.visitMaxs( 3, 2 );
        mv.visitMaxs(0, 0);
        mv.visitEnd();
    }
    helpBuildClass(core, cw, internalProxy, descrCore, mask);
    buildProxyAccessors(mask, cw, proxyName, core, mixinInfo);
    boolean hasKeys = false;
    for (FactField ff : getTrait().getFields()) {
        if (ff.isKey()) {
            hasKeys = true;
            break;
        }
    }
    if (!hasKeys) {
        buildEqualityMethods(cw, proxyName, core.getClassName());
    } else {
        buildKeyedEqualityMethods(cw, getTrait(), proxyName);
    }
    buildMixinMethods(proxyName, mixinInfo, cw);
    buildCommonMethods(cw, proxyName);
    buildExtendedMethods(cw, getTrait(), core);
    buildShadowMethods(cw, trait, core);
    cw.visitEnd();
    return cw.toByteArray();
}