dexlib2/src/main/java/org/jf/dexlib2/dexbacked/DexBackedAnnotation.java

/*
 * Copyright 2012, Google Inc.
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 * modification, are permitted provided that the following conditions are
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 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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package org.jf.dexlib2.dexbacked;

import org.jf.dexlib2.base.BaseAnnotation;
import org.jf.dexlib2.dexbacked.util.VariableSizeSet;

import javax.annotation.Nonnull;
import java.util.Set;

public class DexBackedAnnotation extends BaseAnnotation {
    @Nonnull public final DexBackedDexFile dexFile;

    public final int visibility;
    public final int typeIndex;
    private final int elementsOffset;

    public DexBackedAnnotation(@Nonnull DexBackedDexFile dexFile,
                               int annotationOffset) {
        this.dexFile = dexFile;

        DexReader reader = dexFile.readerAt(annotationOffset);
        this.visibility = reader.readUbyte();
        this.typeIndex = reader.readSmallUleb128();
        this.elementsOffset = reader.getOffset();
    }

    @Override public int getVisibility() { return visibility; }
    @Nonnull @Override public String getType() { return dexFile.getType(typeIndex); }

    @Nonnull
    @Override
    public Set<? extends DexBackedAnnotationElement> getElements() {
        DexReader reader = dexFile.readerAt(elementsOffset);
        final int size = reader.readSmallUleb128();

        return new VariableSizeSet<DexBackedAnnotationElement>(dexFile, reader.getOffset(), size) {
            @Nonnull
            @Override
            protected DexBackedAnnotationElement readNextItem(@Nonnull DexReader reader, int index) {
                return new DexBackedAnnotationElement(reader);
            }
        };
    }
}