com.android.dx.rop.cst.Zeroes Maven / Gradle / Ivy
/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.dx.rop.cst;
import com.android.dx.rop.type.Type;
/**
* Utility for turning types into zeroes.
*/
public final class Zeroes {
/**
* This class is uninstantiable.
*/
private Zeroes() {
// This space intentionally left blank.
}
/**
* Gets the "zero" (or {@code null}) value for the given type.
*
* @param type {@code non-null;} the type in question
* @return {@code non-null;} its "zero" value
*/
public static Constant zeroFor(Type type) {
switch (type.getBasicType()) {
case Type.BT_BOOLEAN: return CstBoolean.VALUE_FALSE;
case Type.BT_BYTE: return CstByte.VALUE_0;
case Type.BT_CHAR: return CstChar.VALUE_0;
case Type.BT_DOUBLE: return CstDouble.VALUE_0;
case Type.BT_FLOAT: return CstFloat.VALUE_0;
case Type.BT_INT: return CstInteger.VALUE_0;
case Type.BT_LONG: return CstLong.VALUE_0;
case Type.BT_SHORT: return CstShort.VALUE_0;
case Type.BT_OBJECT: return CstKnownNull.THE_ONE;
default: {
throw new UnsupportedOperationException("no zero for type: " +
type.toHuman());
}
}
}
}