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

Example 11 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);
        TraitFactory.invokeExtractor(mv, wrapperName, trait, core, field);
        if (BuildUtils.isPrimitive(field.getTypeName())) {
            TraitFactory.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 12 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 = traitRegistry.getFieldMask(getTrait().getName(), core.getDefinedClass().getName());
    String name = TraitFactory.getPropertyWrapperName(getTrait(), core);
    String masterName = TraitFactory.getProxyName(getTrait(), core);
    Class<?> traitClass = getTrait().getDefinedClass();
    String internalWrapper = BuildUtils.getInternalType(name);
    String internalProxy = BuildUtils.getInternalType(masterName);
    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, masterName, core, mixinInfo);
    boolean hasKeys = false;
    for (FactField ff : getTrait().getFields()) {
        if (ff.isKey()) {
            hasKeys = true;
            break;
        }
    }
    if (!hasKeys) {
        buildEqualityMethods(cw, masterName, core.getClassName());
    } else {
        buildKeyedEqualityMethods(cw, getTrait(), masterName);
    }
    buildMixinMethods(masterName, mixinInfo, cw);
    buildCommonMethods(cw, masterName);
    buildExtendedMethods(cw, getTrait(), core);
    buildShadowMethods(cw, trait, core);
    cw.visitEnd();
    return cw.toByteArray();
}

Example 13 with ClassWriter

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

the class TraitTriplePropertyWrapperClassBuilderImpl method buildClearSoftFields.

protected void buildClearSoftFields(ClassWriter cw, String wrapperName, ClassDefinition trait, BitSet mask) {
    MethodVisitor mv = cw.visitMethod(ACC_PRIVATE, "clearSoftFields", "()V", null, null);
    mv.visitCode();
    int j = 0;
    for (FieldDefinition field : trait.getFieldsDefinitions()) {
        boolean isSoftField = TraitRegistry.isSoftField(field, j++, mask);
        if (isSoftField) {
            clearSoftField(mv, wrapperName, field);
        }
    }
    mv.visitInsn(RETURN);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}

Example 14 with ClassWriter

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

the class TraitTriplePropertyWrapperClassBuilderImpl method buildContainsValue.

protected void buildContainsValue(ClassWriter cw, String wrapperName, ClassDefinition core) {
    MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "containsValue", "(" + Type.getDescriptor(Object.class) + ")Z", null, null);
    mv.visitCode();
    boolean hasNillable = false;
    for (FieldDefinition field : core.getFieldsDefinitions()) {
        if (!BuildUtils.isPrimitive(field.getTypeName())) {
            hasNillable = true;
        }
    }
    Label l99 = null;
    if (hasNillable) {
        mv.visitVarInsn(ALOAD, 1);
        l99 = new Label();
        mv.visitJumpInsn(IFNONNULL, l99);
    }
    core.getFieldsDefinitions().size();
    for (FieldDefinition field : core.getFieldsDefinitions()) {
        if (!BuildUtils.isPrimitive(field.getTypeName())) {
            extractAndTestNotNull(mv, wrapperName, core, field);
        }
    }
    if (hasNillable) {
        mv.visitLabel(l99);
    }
    mv.visitVarInsn(ALOAD, 0);
    mv.visitVarInsn(ALOAD, 1);
    mv.visitMethodInsn(INVOKESPECIAL, Type.getInternalName(TripleBasedStruct.class), "containsValue", "(" + Type.getDescriptor(Object.class) + ")Z", false);
    mv.visitInsn(IRETURN);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}

Example 15 with ClassWriter

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

the class TraitTriplePropertyWrapperClassBuilderImpl 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 = traitRegistry.getFieldMask(trait.getName(), core.getDefinedClass().getName());
    String name = TraitFactory.getPropertyWrapperName(trait, core);
    String internalWrapper = BuildUtils.getInternalType(name);
    String descrCore = Type.getDescriptor(core.getDefinedClass());
    ClassWriter cw = createClassWriter(classLoader, ACC_PUBLIC + ACC_SUPER, internalWrapper, null, Type.getInternalName(TripleBasedStruct.class), new String[] { 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();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, Type.getInternalName(TripleBasedStruct.class), "<init>", "()V", false);
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "(" + descrCore + Type.getDescriptor(TripleStore.class) + Type.getDescriptor(TripleFactory.class) + ")V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, Type.getInternalName(TripleBasedStruct.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, "store", Type.getDescriptor(TripleStore.class));
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 3);
        mv.visitMethodInsn(INVOKEVIRTUAL, Type.getInternalName(TripleBasedStruct.class), "setTripleFactory", "(" + Type.getDescriptor(TripleFactory.class) + ")V", false);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 2);
        mv.visitMethodInsn(INVOKEVIRTUAL, Type.getInternalName(TripleStore.class), "getId", "()" + Type.getDescriptor(String.class), false);
        mv.visitFieldInsn(PUTFIELD, internalWrapper, "storeId", Type.getDescriptor(String.class));
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, internalWrapper, "initSoftFields", "()V", false);
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();
    }
    buildInitSoftFields(cw, internalWrapper, trait, core, mask);
    buildClearSoftFields(cw, internalWrapper, trait, mask);
    buildSize(cw, core);
    buildIsEmpty(cw, core);
    buildGet(cw, name, core);
    buildPut(cw, name, core);
    buildClear(cw, name, trait, core);
    buildRemove(cw, name, trait, core, mask);
    buildContainsKey(cw, core);
    buildContainsValue(cw, name, core);
    buildKeyset(cw, core);
    buildValues(cw, name, core);
    buildEntryset(cw, name, core);
    buildCommonMethods(cw, name);
    buildSpecificMethods(cw, name, core);
    cw.visitEnd();
    return cw.toByteArray();
}