Example usage for org.objectweb.asm.tree FieldNode visitAnnotation

Introduction

In this page you can find the example usage for org.objectweb.asm.tree FieldNode visitAnnotation.

Prototype

@Override
    public AnnotationVisitor visitAnnotation(final String descriptor, final boolean visible) 

Source Link

Usage

From source file:com.github.antag99.retinazer.weaver.SystemProcessor.java

License:Open Source License

private void processMethod(MethodNode methodNode) {
    InsnList insns = methodNode.instructions;

    // Filter out debugging nodes/labels
    int count = 0;
    int maxCount = insns.size();
    AbstractInsnNode[] nodes = new AbstractInsnNode[maxCount];
    for (AbstractInsnNode node = insns.getFirst(); node != null; node = node.getNext())
        if (node.getOpcode() > 0)
            nodes[count++] = node;/*from  ww w  .j ava2s . com*/

    // Find mapper get() calls and create an own flyweight instance for each
    for (int i = 0; i <= count - 4; i++) {
        if (!(nodes[i + 0] instanceof VarInsnNode))
            continue;
        if (!(nodes[i + 1] instanceof FieldInsnNode))
            continue;
        if (!(nodes[i + 2] instanceof VarInsnNode))
            continue;
        if (!(nodes[i + 3] instanceof MethodInsnNode))
            continue;

        VarInsnNode loadThis = (VarInsnNode) nodes[i + 0];
        FieldInsnNode getField = (FieldInsnNode) nodes[i + 1];
        VarInsnNode loadEntity = (VarInsnNode) nodes[i + 2];
        MethodInsnNode getMethod = (MethodInsnNode) nodes[i + 3];

        if (loadThis.var != 0 || loadThis.getOpcode() != ALOAD)
            continue;

        if (!getField.owner.equals(metadata.internalName)
                || !getField.desc.equals("L" + WeaverConstants.MAPPER_NAME + ";")
                || !metadata.mappersByName.containsKey(getField.name))
            continue;
        if (loadEntity.getOpcode() != ILOAD)
            continue;
        if (!getMethod.owner.equals(WeaverConstants.MAPPER_NAME)
                || !getMethod.desc.equals("(I)L" + WeaverConstants.COMPONENT_NAME + ";")
                || !getMethod.name.equals("get"))
            continue;

        SystemMapper mapper = metadata.mappersByName.get(getField.name);

        // Add field to hold the flyweight
        String fieldName = "flyweight$" + flyweightFields.size();
        String fieldDesc = mapper.componentType.getDescriptor();
        FieldNode fieldNode = new FieldNode(ACC_PRIVATE, fieldName, fieldDesc, null, null);
        fieldNode.visitAnnotation("Lcom/github/antag99/retinazer/SkipWire;", true);
        FlyweightField flyweightField = new FlyweightField();
        flyweightField.fieldNode = fieldNode;
        flyweightField.mapper = mapper;
        flyweightFields.add(flyweightField);

        // Rewrite access to use the flyweight
        getField.owner = metadata.internalName;
        getField.name = fieldName;
        getField.desc = fieldDesc;
        insns.insert(getField, new InsnNode(DUP));
        insns.insert(loadEntity, new FieldInsnNode(PUTFIELD, mapper.componentType.getInternalName(),
                WeaverConstants.INDEX_FIELD_NAME, WeaverConstants.INDEX_FIELD_DESC));
        insns.remove(getMethod);
    }
}

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From source file:net.enilink.composition.asm.ExtendedClassNode.java

License:Open Source License

@SuppressWarnings("unchecked")
public void addInjectorField() {
    FieldNode injectorField = new FieldNode(Opcodes.ACC_PRIVATE, INJECTOR_FIELD,
            Type.getDescriptor(Injector.class), null, null);
    injectorField.visitAnnotation(Type.getDescriptor(Inject.class), true);
    fields.add(injectorField);// ww w . jav  a 2s . co m
}

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From source file:net.enilink.composition.cache.behaviours.CacheBehaviourMethodProcessor.java

License:Open Source License

@SuppressWarnings("unchecked")
@Override/*  w  ww.jav  a 2s.c o m*/
public void initialize(BehaviourClassNode classNode) throws Exception {
    FieldNode cacheField = new FieldNode(Opcodes.ACC_PRIVATE, "cache", Type.getDescriptor(IPropertyCache.class),
            null, null);
    cacheField.visitAnnotation(Type.getDescriptor(Inject.class), true);
    classNode.fields.add(cacheField);
}

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From source file:org.anon.smart.base.stt.asm.ASMSTTReader.java

License:Open Source License

public void addFieldAnnotation(Class annot) throws CtxException {
    for (Object f : _clazz.fields) {
        FieldNode fn = (FieldNode) f;
        String annotcls = Type.getDescriptor(annot);
        fn.visitAnnotation(annotcls, true);
    }/*from   w w w.  j  ava 2s .  c  o  m*/
}

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From source file:org.anon.smart.base.stt.asm.ASMSTTWriter.java

License:Open Source License

public Object createField(STTVisitor sttvisit, STTDescriptor stt, Object field) {
    ASMClazzContext cctx = (ASMClazzContext) sttvisit.clazzContext();
    ClassVisitor visit = cctx.visitor();
    FieldNode sfn = (FieldNode) field;// ww w  . j  a  v  a  2  s  .c  om
    FieldNode fn = new FieldNode(sfn.access, sfn.name, sfn.desc, sfn.signature, sfn.value);
    List<AnnotationNode> annons = sfn.visibleAnnotations;
    if (annons != null) {
        for (AnnotationNode annon : annons)
            fn.visitAnnotation(annon.desc, true);
    }

    sttvisit.addFieldAnnotations(this, stt, sfn, sfn.name);
    fn.accept(visit);
    return fn;
}

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