dexlib2/src/main/java/org/jf/dexlib2/immutable/ImmutableDexFile.java

/*
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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.immutable;

import com.google.common.collect.ImmutableSet;
import org.jf.dexlib2.Opcodes;
import org.jf.dexlib2.iface.ClassDef;
import org.jf.dexlib2.iface.DexFile;
import org.jf.util.ImmutableUtils;

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

public class ImmutableDexFile implements DexFile {
    @Nonnull protected final ImmutableSet<? extends ImmutableClassDef> classes;
    @Nonnull private final Opcodes opcodes;

    @Deprecated
    public ImmutableDexFile(@Nullable Collection<? extends ClassDef> classes) {
        this.classes = ImmutableClassDef.immutableSetOf(classes);
        this.opcodes = Opcodes.forApi(19);
    }

    @Deprecated
    public ImmutableDexFile(@Nullable ImmutableSet<? extends ImmutableClassDef> classes) {
        this.classes = ImmutableUtils.nullToEmptySet(classes);
        this.opcodes = Opcodes.forApi(19);
    }

    public ImmutableDexFile(@Nonnull Opcodes opcodes, @Nullable Collection<? extends ClassDef> classes) {
        this.classes = ImmutableClassDef.immutableSetOf(classes);
        this.opcodes = opcodes;
    }

    public ImmutableDexFile(@Nonnull Opcodes opcodes, @Nullable ImmutableSet<? extends ImmutableClassDef> classes) {
        this.classes = ImmutableUtils.nullToEmptySet(classes);
        this.opcodes = opcodes;
    }

    public static ImmutableDexFile of(DexFile dexFile) {
        if (dexFile instanceof ImmutableDexFile) {
            return (ImmutableDexFile)dexFile;
        }
        return new ImmutableDexFile(dexFile.getOpcodes(), dexFile.getClasses());
    }

    @Nonnull @Override public ImmutableSet<? extends ImmutableClassDef> getClasses() { return classes; }
    @Nonnull @Override public Opcodes getOpcodes() { return opcodes; }
}