org.objectweb.asm.tree.Util Maven / Gradle / Ivy
// ASM: a very small and fast Java bytecode manipulation framework
// Copyright (c) 2000-2011 INRIA, France Telecom
// All rights reserved.
//
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// modification, are permitted provided that the following conditions
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// notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// 3. Neither the name of the copyright holders nor the names of its
// 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 LIMITED TO, THE
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package org.objectweb.asm.tree;
import java.util.ArrayList;
import java.util.List;
/**
* Utility methods to convert an array of primitive or object values to a mutable ArrayList, not
* baked by the array (unlike {@link java.util.Arrays#asList}).
*
* @author Eric Bruneton
*/
final class Util {
private Util() {}
static List add(final List list, final T element) {
List newList = list == null ? new ArrayList<>(1) : list;
newList.add(element);
return newList;
}
static List asArrayList(final int length) {
List list = new ArrayList<>(length);
for (int i = 0; i < length; ++i) {
list.add(null);
}
return list;
}
static List asArrayList(final T[] array) {
if (array == null) {
return new ArrayList<>();
}
ArrayList list = new ArrayList<>(array.length);
for (T t : array) {
list.add(t); // NOPMD(UseArraysAsList): we want a modifiable list.
}
return list;
}
static List asArrayList(final byte[] byteArray) {
if (byteArray == null) {
return new ArrayList<>();
}
ArrayList byteList = new ArrayList<>(byteArray.length);
for (byte b : byteArray) {
byteList.add(b); // NOPMD(UseArraysAsList): we want a modifiable list.
}
return byteList;
}
static List asArrayList(final boolean[] booleanArray) {
if (booleanArray == null) {
return new ArrayList<>();
}
ArrayList booleanList = new ArrayList<>(booleanArray.length);
for (boolean b : booleanArray) {
booleanList.add(b); // NOPMD(UseArraysAsList): we want a modifiable list.
}
return booleanList;
}
static List asArrayList(final short[] shortArray) {
if (shortArray == null) {
return new ArrayList<>();
}
ArrayList shortList = new ArrayList<>(shortArray.length);
for (short s : shortArray) {
shortList.add(s); // NOPMD(UseArraysAsList): we want a modifiable list.
}
return shortList;
}
static List asArrayList(final char[] charArray) {
if (charArray == null) {
return new ArrayList<>();
}
ArrayList charList = new ArrayList<>(charArray.length);
for (char c : charArray) {
charList.add(c); // NOPMD(UseArraysAsList): we want a modifiable list.
}
return charList;
}
static List asArrayList(final int[] intArray) {
if (intArray == null) {
return new ArrayList<>();
}
ArrayList intList = new ArrayList<>(intArray.length);
for (int i : intArray) {
intList.add(i); // NOPMD(UseArraysAsList): we want a modifiable list.
}
return intList;
}
static List asArrayList(final float[] floatArray) {
if (floatArray == null) {
return new ArrayList<>();
}
ArrayList floatList = new ArrayList<>(floatArray.length);
for (float f : floatArray) {
floatList.add(f); // NOPMD(UseArraysAsList): we want a modifiable list.
}
return floatList;
}
static List asArrayList(final long[] longArray) {
if (longArray == null) {
return new ArrayList<>();
}
ArrayList longList = new ArrayList<>(longArray.length);
for (long l : longArray) {
longList.add(l); // NOPMD(UseArraysAsList): we want a modifiable list.
}
return longList;
}
static List asArrayList(final double[] doubleArray) {
if (doubleArray == null) {
return new ArrayList<>();
}
ArrayList doubleList = new ArrayList<>(doubleArray.length);
for (double d : doubleArray) {
doubleList.add(d); // NOPMD(UseArraysAsList): we want a modifiable list.
}
return doubleList;
}
static List asArrayList(final int length, final T[] array) {
List list = new ArrayList<>(length);
for (int i = 0; i < length; ++i) {
list.add(array[i]); // NOPMD(UseArraysAsList): we convert a part of the array.
}
return list;
}
}