/*
* Copyright 2012, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
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* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
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* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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*/
package org.jf.dexlib2.immutable.instruction;
import com.google.common.collect.ImmutableList;
import org.jf.dexlib2.iface.instruction.SwitchElement;
import org.jf.util.ImmutableConverter;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import java.util.List;
public class ImmutableSwitchElement implements SwitchElement {
protected final int key;
protected final int offset;
public ImmutableSwitchElement(int key,
int offset) {
this.key = key;
this.offset = offset;
}
@Nonnull
public static ImmutableSwitchElement of(SwitchElement switchElement) {
if (switchElement instanceof ImmutableSwitchElement) {
return (ImmutableSwitchElement)switchElement;
}
return new ImmutableSwitchElement(
switchElement.getKey(),
switchElement.getOffset());
}
@Override public int getKey() { return key; }
@Override public int getOffset() { return offset; }
@Nonnull
public static ImmutableList<ImmutableSwitchElement> immutableListOf(@Nullable List<? extends SwitchElement> list) {
return CONVERTER.toList(list);
}
private static final ImmutableConverter<ImmutableSwitchElement, SwitchElement> CONVERTER =
new ImmutableConverter<ImmutableSwitchElement, SwitchElement>() {
@Override
protected boolean isImmutable(@Nonnull SwitchElement item) {
return item instanceof ImmutableSwitchElement;
}
@Nonnull
@Override
protected ImmutableSwitchElement makeImmutable(@Nonnull SwitchElement item) {
return ImmutableSwitchElement.of(item);
}
};
}