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

Example 31 with ClassWriter

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

the class TraitTriplePropertyWrapperClassBuilderImpl method buildInitSoftFields.

protected void buildInitSoftFields(ClassWriter cw, String wrapperName, ClassDefinition trait, ClassDefinition core, BitSet mask) {
    MethodVisitor mv = cw.visitMethod(ACC_PRIVATE, "initSoftFields", "()V", null, null);
    mv.visitCode();
    initSoftFields(mv, wrapperName, trait, core, mask);
    mv.visitInsn(RETURN);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}

Example 32 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 = TraitRegistryImpl.isSoftField(field, j++, mask);
        if (isSoftField) {
            clearSoftField(mv, wrapperName, field);
        }
    }
    mv.visitInsn(RETURN);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}

Example 33 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 = traitRegistryImpl.getFieldMask(trait.getName(), core.getDefinedClass().getName());
    String name = TraitFactoryImpl.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();
}

Example 34 with ClassWriter

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

the class TraitTriplePropertyWrapperClassBuilderImpl 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();
    int stack = 0;
    for (FieldDefinition field : core.getFieldsDefinitions()) {
        stack = Math.max(stack, BuildUtils.sizeOf(field.getTypeName()));
        invokeRemove(mv, wrapperName, core, field.getName(), field);
    }
    int j = 0;
    for (FieldDefinition field : trait.getFieldsDefinitions()) {
        boolean isSoftField = TraitRegistryImpl.isSoftField(field, j++, mask);
        if (isSoftField) {
            stack = Math.max(stack, BuildUtils.sizeOf(field.getTypeName()));
            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, "store", Type.getDescriptor(TripleStore.class));
            mv.visitVarInsn(ALOAD, 0);
            mv.visitLdcInsn(field.getName());
            mv.visitMethodInsn(INVOKEVIRTUAL, internalWrapper, "propertyKey", "(" + Type.getDescriptor(Object.class) + ")" + Type.getDescriptor(Triple.class), false);
            mv.visitMethodInsn(INVOKEVIRTUAL, Type.getInternalName(TripleStore.class), "get", "(" + Type.getDescriptor(Triple.class) + ")" + Type.getDescriptor(Triple.class), false);
            mv.visitVarInsn(ASTORE, 2);
            mv.visitVarInsn(ALOAD, 0);
            mv.visitLdcInsn(field.getName());
            mv.visitInsn(AsmUtil.zero(field.getTypeName()));
            if (BuildUtils.isPrimitive(field.getTypeName())) {
                TraitFactoryImpl.valueOf(mv, field.getTypeName());
            }
            mv.visitMethodInsn(INVOKESPECIAL, Type.getInternalName(TripleBasedStruct.class), "put", "(" + Type.getDescriptor(String.class) + Type.getDescriptor(Object.class) + ")" + Type.getDescriptor(Object.class), false);
            mv.visitInsn(POP);
            mv.visitVarInsn(ALOAD, 2);
            mv.visitInsn(ARETURN);
            mv.visitLabel(l2);
        }
    }
    mv.visitVarInsn(ALOAD, 0);
    mv.visitVarInsn(ALOAD, 1);
    mv.visitMethodInsn(INVOKESPECIAL, Type.getInternalName(TripleBasedStruct.class), "remove", "(" + Type.getDescriptor(Object.class) + ")" + Type.getDescriptor(Object.class), false);
    mv.visitVarInsn(ASTORE, 2);
    mv.visitVarInsn(ALOAD, 2);
    mv.visitInsn(ARETURN);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}

Example 35 with ClassWriter

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

the class TraitTriplePropertyWrapperClassBuilderImpl method buildClear.

protected void buildClear(ClassWriter cw, String wrapperName, ClassDefinition trait, ClassDefinition core) {
    String internalWrapper = BuildUtils.getInternalType(wrapperName);
    MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "clear", "()V", null, null);
    mv.visitCode();
    for (FieldDefinition field : core.getFieldsDefinitions()) {
        if (field.isKey())
            continue;
        TraitFactoryImpl.invokeInjector(mv, wrapperName, core, field, true, 1);
    }
    mv.visitVarInsn(ALOAD, 0);
    mv.visitMethodInsn(INVOKESPECIAL, Type.getInternalName(TripleBasedStruct.class), "clear", "()V", false);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitMethodInsn(INVOKESPECIAL, internalWrapper, "clearSoftFields", "()V", false);
    mv.visitInsn(RETURN);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}