dexlib2/src/main/java/org/jf/dexlib2/writer/pool/ProtoPool.java

/*
 * Copyright 2013, Google Inc.
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 * modification, are permitted provided that the following conditions are
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 *
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package org.jf.dexlib2.writer.pool;

import org.jf.dexlib2.iface.reference.MethodProtoReference;
import org.jf.dexlib2.util.MethodUtil;
import org.jf.dexlib2.writer.ProtoSection;

import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import java.util.Collection;
import java.util.List;

public class ProtoPool extends BaseIndexPool<MethodProtoReference>
        implements ProtoSection<CharSequence, CharSequence, MethodProtoReference,
        TypeListPool.Key<? extends Collection<? extends CharSequence>>> {
    @Nonnull private final StringPool stringPool;
    @Nonnull private final TypePool typePool;
    @Nonnull private final TypeListPool typeListPool;

    public ProtoPool(@Nonnull StringPool stringPool, @Nonnull TypePool typePool,
                     @Nonnull TypeListPool typeListPool) {
        this.stringPool = stringPool;
        this.typePool = typePool;
        this.typeListPool = typeListPool;
    }

    public void intern(@Nonnull MethodProtoReference reference) {
        Integer prev = internedItems.put(reference, 0);
        if (prev == null) {
            stringPool.intern(getShorty(reference));
            typePool.intern(reference.getReturnType());
            typeListPool.intern(reference.getParameterTypes());
        }
    }

    @Nonnull @Override public CharSequence getShorty(@Nonnull MethodProtoReference reference) {
        return MethodUtil.getShorty(reference.getParameterTypes(), reference.getReturnType());
    }

    @Nonnull @Override public CharSequence getReturnType(@Nonnull MethodProtoReference protoReference) {
        return protoReference.getReturnType();
    }

    @Nullable @Override public TypeListPool.Key<List<? extends CharSequence>> getParameters(
            @Nonnull MethodProtoReference methodProto) {
        return new TypeListPool.Key<List<? extends CharSequence>>(methodProto.getParameterTypes());
    }
}