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/*
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* Copyright (c) 1996, 2006, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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jaroslav@475
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package java.lang.reflect;
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lubomir@967
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import org.apidesign.bck2brwsr.core.Exported;
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import org.apidesign.bck2brwsr.core.JavaScriptBody;
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import org.apidesign.bck2brwsr.core.JavaScriptPrototype;
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/**
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* The {@code Array} class provides static methods to dynamically create and
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* access Java arrays.
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*
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* <p>{@code Array} permits widening conversions to occur during a get or set
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* operation, but throws an {@code IllegalArgumentException} if a narrowing
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* conversion would occur.
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*
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* @author Nakul Saraiya
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*/
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@JavaScriptPrototype(prototype = "new Array", container = "Array.prototype")
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public final
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class Array {
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/**
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* Constructor. Class Array is not instantiable.
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*/
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private Array() {}
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/**
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* Creates a new array with the specified component type and
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* length.
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* Invoking this method is equivalent to creating an array
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* as follows:
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* <blockquote>
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* <pre>
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* int[] x = {length};
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* Array.newInstance(componentType, x);
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* </pre>
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* </blockquote>
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*
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* @param componentType the {@code Class} object representing the
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* component type of the new array
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* @param length the length of the new array
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* @return the new array
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* @exception NullPointerException if the specified
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* {@code componentType} parameter is null
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* @exception IllegalArgumentException if componentType is {@link Void#TYPE}
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* @exception NegativeArraySizeException if the specified {@code length}
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* is negative
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*/
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public static Object newInstance(Class<?> componentType, int length)
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throws NegativeArraySizeException {
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if (length < 0) {
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throw new NegativeArraySizeException();
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}
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String sig = findSignature(componentType);
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return newArray(componentType.isPrimitive(), sig, null, length);
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}
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private static String findSignature(Class<?> type) {
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if (type == Integer.TYPE) {
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return "[I";
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}
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if (type == Long.TYPE) {
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return "[J";
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}
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if (type == Double.TYPE) {
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return "[D";
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}
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if (type == Float.TYPE) {
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return "[F";
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}
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if (type == Byte.TYPE) {
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return "[B";
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}
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if (type == Boolean.TYPE) {
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return "[Z";
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}
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if (type == Short.TYPE) {
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return "[S";
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}
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if (type == Character.TYPE) {
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return "[C";
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}
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if (type.getName().equals("void")) {
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throw new IllegalStateException("Can't create array for " + type);
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}
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return "[L" + type.getName().replace('.', '/') + ";";
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}
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/**
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* Creates a new array
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* with the specified component type and dimensions.
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* If {@code componentType}
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* represents a non-array class or interface, the new array
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* has {@code dimensions.length} dimensions and
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* {@code componentType} as its component type. If
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* {@code componentType} represents an array class, the
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* number of dimensions of the new array is equal to the sum
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* of {@code dimensions.length} and the number of
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* dimensions of {@code componentType}. In this case, the
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* component type of the new array is the component type of
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* {@code componentType}.
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*
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* <p>The number of dimensions of the new array must not
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* exceed the number of array dimensions supported by the
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* implementation (typically 255).
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*
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* @param componentType the {@code Class} object representing the component
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* type of the new array
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* @param dimensions an array of {@code int} representing the dimensions of
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* the new array
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* @return the new array
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* @exception NullPointerException if the specified
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* {@code componentType} argument is null
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* @exception IllegalArgumentException if the specified {@code dimensions}
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* argument is a zero-dimensional array, or if the number of
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* requested dimensions exceeds the limit on the number of array dimensions
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* supported by the implementation (typically 255), or if componentType
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* is {@link Void#TYPE}.
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* @exception NegativeArraySizeException if any of the components in
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* the specified {@code dimensions} argument is negative.
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*/
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public static Object newInstance(Class<?> componentType, int... dimensions)
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throws IllegalArgumentException, NegativeArraySizeException {
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jaroslav@480
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StringBuilder sig = new StringBuilder();
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jaroslav@480
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for (int i = 1; i < dimensions.length; i++) {
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sig.append('[');
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jaroslav@480
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}
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jaroslav@480
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sig.append(findSignature(componentType));
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return multiNewArray(sig.toString(), dimensions, 0);
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}
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/**
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* Returns the length of the specified array object, as an {@code int}.
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*
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* @param array the array
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* @return the length of the array
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* @exception IllegalArgumentException if the object argument is not
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* an array
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*/
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jaroslav@482
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public static int getLength(Object array)
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throws IllegalArgumentException {
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jaroslav@482
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if (!array.getClass().isArray()) {
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throw new IllegalArgumentException("Argument is not an array");
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}
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return length(array);
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}
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@JavaScriptBody(args = { "arr" }, body = "return arr.length;")
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private static native int length(Object arr);
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/**
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* Returns the value of the indexed component in the specified
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* array object. The value is automatically wrapped in an object
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* if it has a primitive type.
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*
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* @param array the array
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* @param index the index
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* @return the (possibly wrapped) value of the indexed component in
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* the specified array
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* @exception NullPointerException If the specified object is null
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* @exception IllegalArgumentException If the specified object is not
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* an array
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* @exception ArrayIndexOutOfBoundsException If the specified {@code index}
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* argument is negative, or if it is greater than or equal to the
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* length of the specified array
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*/
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public static Object get(Object array, int index)
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jaroslav@485
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throws IllegalArgumentException, ArrayIndexOutOfBoundsException {
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jaroslav@486
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final Class<?> t = array.getClass().getComponentType();
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jaroslav@486
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if (t.isPrimitive()) {
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jaroslav@571
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return fromPrimitive(t, array, index);
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jaroslav@485
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} else {
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return ((Object[])array)[index];
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}
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}
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/**
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* Returns the value of the indexed component in the specified
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* array object, as a {@code boolean}.
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*
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* @param array the array
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* @param index the index
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* @return the value of the indexed component in the specified array
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* @exception NullPointerException If the specified object is null
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* @exception IllegalArgumentException If the specified object is not
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* an array, or if the indexed element cannot be converted to the
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jaroslav@475
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* return type by an identity or widening conversion
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jaroslav@475
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* @exception ArrayIndexOutOfBoundsException If the specified {@code index}
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* argument is negative, or if it is greater than or equal to the
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* length of the specified array
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jaroslav@475
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* @see Array#get
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*/
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jaroslav@475
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public static native boolean getBoolean(Object array, int index)
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throws IllegalArgumentException, ArrayIndexOutOfBoundsException;
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jaroslav@475
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jaroslav@475
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/**
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jaroslav@475
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* Returns the value of the indexed component in the specified
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jaroslav@475
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* array object, as a {@code byte}.
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jaroslav@475
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*
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jaroslav@475
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* @param array the array
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jaroslav@475
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* @param index the index
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jaroslav@475
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* @return the value of the indexed component in the specified array
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jaroslav@475
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* @exception NullPointerException If the specified object is null
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jaroslav@475
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* @exception IllegalArgumentException If the specified object is not
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jaroslav@475
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* an array, or if the indexed element cannot be converted to the
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jaroslav@475
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* return type by an identity or widening conversion
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jaroslav@475
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* @exception ArrayIndexOutOfBoundsException If the specified {@code index}
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jaroslav@475
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* argument is negative, or if it is greater than or equal to the
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jaroslav@475
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* length of the specified array
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* @see Array#get
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jaroslav@475
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*/
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jaroslav@483
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public static byte getByte(Object array, int index)
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jaroslav@483
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throws IllegalArgumentException, ArrayIndexOutOfBoundsException {
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jaroslav@483
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if (array.getClass().getComponentType() != Byte.TYPE) {
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jaroslav@483
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throw new IllegalArgumentException();
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jaroslav@483
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}
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jaroslav@483
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byte[] arr = (byte[]) array;
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jaroslav@483
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return arr[index];
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jaroslav@483
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}
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jaroslav@475
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jaroslav@475
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/**
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jaroslav@475
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* Returns the value of the indexed component in the specified
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jaroslav@475
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* array object, as a {@code char}.
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jaroslav@475
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*
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jaroslav@475
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* @param array the array
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jaroslav@475
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* @param index the index
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jaroslav@475
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* @return the value of the indexed component in the specified array
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jaroslav@475
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* @exception NullPointerException If the specified object is null
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jaroslav@475
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* @exception IllegalArgumentException If the specified object is not
|
jaroslav@475
|
253 |
* an array, or if the indexed element cannot be converted to the
|
jaroslav@475
|
254 |
* return type by an identity or widening conversion
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jaroslav@475
|
255 |
* @exception ArrayIndexOutOfBoundsException If the specified {@code index}
|
jaroslav@475
|
256 |
* argument is negative, or if it is greater than or equal to the
|
jaroslav@475
|
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* length of the specified array
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jaroslav@475
|
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* @see Array#get
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jaroslav@475
|
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*/
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jaroslav@475
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public static native char getChar(Object array, int index)
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jaroslav@475
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throws IllegalArgumentException, ArrayIndexOutOfBoundsException;
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jaroslav@475
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jaroslav@475
|
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/**
|
jaroslav@475
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* Returns the value of the indexed component in the specified
|
jaroslav@475
|
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* array object, as a {@code short}.
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jaroslav@475
|
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*
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jaroslav@475
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* @param array the array
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jaroslav@475
|
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* @param index the index
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jaroslav@475
|
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* @return the value of the indexed component in the specified array
|
jaroslav@475
|
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* @exception NullPointerException If the specified object is null
|
jaroslav@475
|
271 |
* @exception IllegalArgumentException If the specified object is not
|
jaroslav@475
|
272 |
* an array, or if the indexed element cannot be converted to the
|
jaroslav@475
|
273 |
* return type by an identity or widening conversion
|
jaroslav@475
|
274 |
* @exception ArrayIndexOutOfBoundsException If the specified {@code index}
|
jaroslav@475
|
275 |
* argument is negative, or if it is greater than or equal to the
|
jaroslav@475
|
276 |
* length of the specified array
|
jaroslav@475
|
277 |
* @see Array#get
|
jaroslav@475
|
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*/
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jaroslav@483
|
279 |
public static short getShort(Object array, int index)
|
jaroslav@483
|
280 |
throws IllegalArgumentException, ArrayIndexOutOfBoundsException {
|
jaroslav@483
|
281 |
final Class<?> t = array.getClass().getComponentType();
|
jaroslav@483
|
282 |
if (t == Short.TYPE) {
|
jaroslav@483
|
283 |
short[] arr = (short[]) array;
|
jaroslav@483
|
284 |
return arr[index];
|
jaroslav@483
|
285 |
}
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jaroslav@483
|
286 |
return getByte(array, index);
|
jaroslav@483
|
287 |
}
|
jaroslav@475
|
288 |
|
jaroslav@475
|
289 |
/**
|
jaroslav@475
|
290 |
* Returns the value of the indexed component in the specified
|
jaroslav@475
|
291 |
* array object, as an {@code int}.
|
jaroslav@475
|
292 |
*
|
jaroslav@475
|
293 |
* @param array the array
|
jaroslav@475
|
294 |
* @param index the index
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jaroslav@475
|
295 |
* @return the value of the indexed component in the specified array
|
jaroslav@475
|
296 |
* @exception NullPointerException If the specified object is null
|
jaroslav@475
|
297 |
* @exception IllegalArgumentException If the specified object is not
|
jaroslav@475
|
298 |
* an array, or if the indexed element cannot be converted to the
|
jaroslav@475
|
299 |
* return type by an identity or widening conversion
|
jaroslav@475
|
300 |
* @exception ArrayIndexOutOfBoundsException If the specified {@code index}
|
jaroslav@475
|
301 |
* argument is negative, or if it is greater than or equal to the
|
jaroslav@475
|
302 |
* length of the specified array
|
jaroslav@475
|
303 |
* @see Array#get
|
jaroslav@475
|
304 |
*/
|
jaroslav@483
|
305 |
public static int getInt(Object array, int index)
|
jaroslav@483
|
306 |
throws IllegalArgumentException, ArrayIndexOutOfBoundsException {
|
jaroslav@483
|
307 |
final Class<?> t = array.getClass().getComponentType();
|
jaroslav@483
|
308 |
if (t == Integer.TYPE) {
|
jaroslav@483
|
309 |
int[] arr = (int[]) array;
|
jaroslav@483
|
310 |
return arr[index];
|
jaroslav@483
|
311 |
}
|
jaroslav@483
|
312 |
return getShort(array, index);
|
jaroslav@483
|
313 |
}
|
jaroslav@475
|
314 |
|
jaroslav@475
|
315 |
/**
|
jaroslav@475
|
316 |
* Returns the value of the indexed component in the specified
|
jaroslav@475
|
317 |
* array object, as a {@code long}.
|
jaroslav@475
|
318 |
*
|
jaroslav@475
|
319 |
* @param array the array
|
jaroslav@475
|
320 |
* @param index the index
|
jaroslav@475
|
321 |
* @return the value of the indexed component in the specified array
|
jaroslav@475
|
322 |
* @exception NullPointerException If the specified object is null
|
jaroslav@475
|
323 |
* @exception IllegalArgumentException If the specified object is not
|
jaroslav@475
|
324 |
* an array, or if the indexed element cannot be converted to the
|
jaroslav@475
|
325 |
* return type by an identity or widening conversion
|
jaroslav@475
|
326 |
* @exception ArrayIndexOutOfBoundsException If the specified {@code index}
|
jaroslav@475
|
327 |
* argument is negative, or if it is greater than or equal to the
|
jaroslav@475
|
328 |
* length of the specified array
|
jaroslav@475
|
329 |
* @see Array#get
|
jaroslav@475
|
330 |
*/
|
jaroslav@483
|
331 |
public static long getLong(Object array, int index)
|
jaroslav@483
|
332 |
throws IllegalArgumentException, ArrayIndexOutOfBoundsException {
|
jaroslav@483
|
333 |
final Class<?> t = array.getClass().getComponentType();
|
jaroslav@483
|
334 |
if (t == Long.TYPE) {
|
jaroslav@483
|
335 |
long[] arr = (long[]) array;
|
jaroslav@483
|
336 |
return arr[index];
|
jaroslav@483
|
337 |
}
|
jaroslav@483
|
338 |
return getInt(array, index);
|
jaroslav@483
|
339 |
}
|
jaroslav@475
|
340 |
|
jaroslav@475
|
341 |
/**
|
jaroslav@475
|
342 |
* Returns the value of the indexed component in the specified
|
jaroslav@475
|
343 |
* array object, as a {@code float}.
|
jaroslav@475
|
344 |
*
|
jaroslav@475
|
345 |
* @param array the array
|
jaroslav@475
|
346 |
* @param index the index
|
jaroslav@475
|
347 |
* @return the value of the indexed component in the specified array
|
jaroslav@475
|
348 |
* @exception NullPointerException If the specified object is null
|
jaroslav@475
|
349 |
* @exception IllegalArgumentException If the specified object is not
|
jaroslav@475
|
350 |
* an array, or if the indexed element cannot be converted to the
|
jaroslav@475
|
351 |
* return type by an identity or widening conversion
|
jaroslav@475
|
352 |
* @exception ArrayIndexOutOfBoundsException If the specified {@code index}
|
jaroslav@475
|
353 |
* argument is negative, or if it is greater than or equal to the
|
jaroslav@475
|
354 |
* length of the specified array
|
jaroslav@475
|
355 |
* @see Array#get
|
jaroslav@475
|
356 |
*/
|
jaroslav@483
|
357 |
public static float getFloat(Object array, int index)
|
jaroslav@483
|
358 |
throws IllegalArgumentException, ArrayIndexOutOfBoundsException {
|
jaroslav@483
|
359 |
final Class<?> t = array.getClass().getComponentType();
|
jaroslav@483
|
360 |
if (t == Float.TYPE) {
|
jaroslav@483
|
361 |
float[] arr = (float[]) array;
|
jaroslav@483
|
362 |
return arr[index];
|
jaroslav@483
|
363 |
}
|
jaroslav@483
|
364 |
return getLong(array, index);
|
jaroslav@483
|
365 |
}
|
jaroslav@475
|
366 |
|
jaroslav@475
|
367 |
/**
|
jaroslav@475
|
368 |
* Returns the value of the indexed component in the specified
|
jaroslav@475
|
369 |
* array object, as a {@code double}.
|
jaroslav@475
|
370 |
*
|
jaroslav@475
|
371 |
* @param array the array
|
jaroslav@475
|
372 |
* @param index the index
|
jaroslav@475
|
373 |
* @return the value of the indexed component in the specified array
|
jaroslav@475
|
374 |
* @exception NullPointerException If the specified object is null
|
jaroslav@475
|
375 |
* @exception IllegalArgumentException If the specified object is not
|
jaroslav@475
|
376 |
* an array, or if the indexed element cannot be converted to the
|
jaroslav@475
|
377 |
* return type by an identity or widening conversion
|
jaroslav@475
|
378 |
* @exception ArrayIndexOutOfBoundsException If the specified {@code index}
|
jaroslav@475
|
379 |
* argument is negative, or if it is greater than or equal to the
|
jaroslav@475
|
380 |
* length of the specified array
|
jaroslav@475
|
381 |
* @see Array#get
|
jaroslav@475
|
382 |
*/
|
jaroslav@483
|
383 |
public static double getDouble(Object array, int index)
|
jaroslav@483
|
384 |
throws IllegalArgumentException, ArrayIndexOutOfBoundsException {
|
jaroslav@483
|
385 |
final Class<?> t = array.getClass().getComponentType();
|
jaroslav@483
|
386 |
if (t == Double.TYPE) {
|
jaroslav@483
|
387 |
double[] arr = (double[]) array;
|
jaroslav@483
|
388 |
return arr[index];
|
jaroslav@483
|
389 |
}
|
jaroslav@483
|
390 |
return getFloat(array, index);
|
jaroslav@483
|
391 |
}
|
jaroslav@475
|
392 |
|
jaroslav@475
|
393 |
/**
|
jaroslav@475
|
394 |
* Sets the value of the indexed component of the specified array
|
jaroslav@475
|
395 |
* object to the specified new value. The new value is first
|
jaroslav@475
|
396 |
* automatically unwrapped if the array has a primitive component
|
jaroslav@475
|
397 |
* type.
|
jaroslav@475
|
398 |
* @param array the array
|
jaroslav@475
|
399 |
* @param index the index into the array
|
jaroslav@475
|
400 |
* @param value the new value of the indexed component
|
jaroslav@475
|
401 |
* @exception NullPointerException If the specified object argument
|
jaroslav@475
|
402 |
* is null
|
jaroslav@475
|
403 |
* @exception IllegalArgumentException If the specified object argument
|
jaroslav@475
|
404 |
* is not an array, or if the array component type is primitive and
|
jaroslav@475
|
405 |
* an unwrapping conversion fails
|
jaroslav@475
|
406 |
* @exception ArrayIndexOutOfBoundsException If the specified {@code index}
|
jaroslav@475
|
407 |
* argument is negative, or if it is greater than or equal to
|
jaroslav@475
|
408 |
* the length of the specified array
|
jaroslav@475
|
409 |
*/
|
jaroslav@485
|
410 |
public static void set(Object array, int index, Object value)
|
jaroslav@485
|
411 |
throws IllegalArgumentException, ArrayIndexOutOfBoundsException {
|
jaroslav@485
|
412 |
if (array.getClass().getComponentType().isPrimitive()) {
|
jaroslav@485
|
413 |
throw new IllegalArgumentException();
|
jaroslav@485
|
414 |
} else {
|
jaroslav@485
|
415 |
Object[] arr = (Object[])array;
|
jaroslav@485
|
416 |
arr[index] = value;
|
jaroslav@485
|
417 |
}
|
jaroslav@485
|
418 |
}
|
jaroslav@475
|
419 |
|
jaroslav@475
|
420 |
/**
|
jaroslav@475
|
421 |
* Sets the value of the indexed component of the specified array
|
jaroslav@475
|
422 |
* object to the specified {@code boolean} value.
|
jaroslav@475
|
423 |
* @param array the array
|
jaroslav@475
|
424 |
* @param index the index into the array
|
jaroslav@475
|
425 |
* @param z the new value of the indexed component
|
jaroslav@475
|
426 |
* @exception NullPointerException If the specified object argument
|
jaroslav@475
|
427 |
* is null
|
jaroslav@475
|
428 |
* @exception IllegalArgumentException If the specified object argument
|
jaroslav@475
|
429 |
* is not an array, or if the specified value cannot be converted
|
jaroslav@475
|
430 |
* to the underlying array's component type by an identity or a
|
jaroslav@475
|
431 |
* primitive widening conversion
|
jaroslav@475
|
432 |
* @exception ArrayIndexOutOfBoundsException If the specified {@code index}
|
jaroslav@475
|
433 |
* argument is negative, or if it is greater than or equal to
|
jaroslav@475
|
434 |
* the length of the specified array
|
jaroslav@475
|
435 |
* @see Array#set
|
jaroslav@475
|
436 |
*/
|
jaroslav@475
|
437 |
public static native void setBoolean(Object array, int index, boolean z)
|
jaroslav@475
|
438 |
throws IllegalArgumentException, ArrayIndexOutOfBoundsException;
|
jaroslav@475
|
439 |
|
jaroslav@475
|
440 |
/**
|
jaroslav@475
|
441 |
* Sets the value of the indexed component of the specified array
|
jaroslav@475
|
442 |
* object to the specified {@code byte} value.
|
jaroslav@475
|
443 |
* @param array the array
|
jaroslav@475
|
444 |
* @param index the index into the array
|
jaroslav@475
|
445 |
* @param b the new value of the indexed component
|
jaroslav@475
|
446 |
* @exception NullPointerException If the specified object argument
|
jaroslav@475
|
447 |
* is null
|
jaroslav@475
|
448 |
* @exception IllegalArgumentException If the specified object argument
|
jaroslav@475
|
449 |
* is not an array, or if the specified value cannot be converted
|
jaroslav@475
|
450 |
* to the underlying array's component type by an identity or a
|
jaroslav@475
|
451 |
* primitive widening conversion
|
jaroslav@475
|
452 |
* @exception ArrayIndexOutOfBoundsException If the specified {@code index}
|
jaroslav@475
|
453 |
* argument is negative, or if it is greater than or equal to
|
jaroslav@475
|
454 |
* the length of the specified array
|
jaroslav@475
|
455 |
* @see Array#set
|
jaroslav@475
|
456 |
*/
|
jaroslav@484
|
457 |
public static void setByte(Object array, int index, byte b)
|
jaroslav@484
|
458 |
throws IllegalArgumentException, ArrayIndexOutOfBoundsException {
|
jaroslav@484
|
459 |
Class<?> t = array.getClass().getComponentType();
|
jaroslav@484
|
460 |
if (t == Byte.TYPE) {
|
jaroslav@484
|
461 |
byte[] arr = (byte[]) array;
|
jaroslav@484
|
462 |
arr[index] = b;
|
jaroslav@484
|
463 |
} else {
|
jaroslav@484
|
464 |
setShort(array, index, b);
|
jaroslav@484
|
465 |
}
|
jaroslav@484
|
466 |
}
|
jaroslav@475
|
467 |
|
jaroslav@475
|
468 |
/**
|
jaroslav@475
|
469 |
* Sets the value of the indexed component of the specified array
|
jaroslav@475
|
470 |
* object to the specified {@code char} value.
|
jaroslav@475
|
471 |
* @param array the array
|
jaroslav@475
|
472 |
* @param index the index into the array
|
jaroslav@475
|
473 |
* @param c the new value of the indexed component
|
jaroslav@475
|
474 |
* @exception NullPointerException If the specified object argument
|
jaroslav@475
|
475 |
* is null
|
jaroslav@475
|
476 |
* @exception IllegalArgumentException If the specified object argument
|
jaroslav@475
|
477 |
* is not an array, or if the specified value cannot be converted
|
jaroslav@475
|
478 |
* to the underlying array's component type by an identity or a
|
jaroslav@475
|
479 |
* primitive widening conversion
|
jaroslav@475
|
480 |
* @exception ArrayIndexOutOfBoundsException If the specified {@code index}
|
jaroslav@475
|
481 |
* argument is negative, or if it is greater than or equal to
|
jaroslav@475
|
482 |
* the length of the specified array
|
jaroslav@475
|
483 |
* @see Array#set
|
jaroslav@475
|
484 |
*/
|
jaroslav@475
|
485 |
public static native void setChar(Object array, int index, char c)
|
jaroslav@475
|
486 |
throws IllegalArgumentException, ArrayIndexOutOfBoundsException;
|
jaroslav@475
|
487 |
|
jaroslav@475
|
488 |
/**
|
jaroslav@475
|
489 |
* Sets the value of the indexed component of the specified array
|
jaroslav@475
|
490 |
* object to the specified {@code short} value.
|
jaroslav@475
|
491 |
* @param array the array
|
jaroslav@475
|
492 |
* @param index the index into the array
|
jaroslav@475
|
493 |
* @param s the new value of the indexed component
|
jaroslav@475
|
494 |
* @exception NullPointerException If the specified object argument
|
jaroslav@475
|
495 |
* is null
|
jaroslav@475
|
496 |
* @exception IllegalArgumentException If the specified object argument
|
jaroslav@475
|
497 |
* is not an array, or if the specified value cannot be converted
|
jaroslav@475
|
498 |
* to the underlying array's component type by an identity or a
|
jaroslav@475
|
499 |
* primitive widening conversion
|
jaroslav@475
|
500 |
* @exception ArrayIndexOutOfBoundsException If the specified {@code index}
|
jaroslav@475
|
501 |
* argument is negative, or if it is greater than or equal to
|
jaroslav@475
|
502 |
* the length of the specified array
|
jaroslav@475
|
503 |
* @see Array#set
|
jaroslav@475
|
504 |
*/
|
jaroslav@484
|
505 |
public static void setShort(Object array, int index, short s)
|
jaroslav@484
|
506 |
throws IllegalArgumentException, ArrayIndexOutOfBoundsException {
|
jaroslav@484
|
507 |
Class<?> t = array.getClass().getComponentType();
|
jaroslav@484
|
508 |
if (t == Short.TYPE) {
|
jaroslav@484
|
509 |
short[] arr = (short[]) array;
|
jaroslav@484
|
510 |
arr[index] = s;
|
jaroslav@484
|
511 |
} else {
|
jaroslav@484
|
512 |
setInt(array, index, s);
|
jaroslav@484
|
513 |
}
|
jaroslav@484
|
514 |
|
jaroslav@484
|
515 |
}
|
jaroslav@571
|
516 |
|
jaroslav@475
|
517 |
/**
|
jaroslav@475
|
518 |
* Sets the value of the indexed component of the specified array
|
jaroslav@475
|
519 |
* object to the specified {@code int} value.
|
jaroslav@475
|
520 |
* @param array the array
|
jaroslav@475
|
521 |
* @param index the index into the array
|
jaroslav@475
|
522 |
* @param i the new value of the indexed component
|
jaroslav@475
|
523 |
* @exception NullPointerException If the specified object argument
|
jaroslav@475
|
524 |
* is null
|
jaroslav@475
|
525 |
* @exception IllegalArgumentException If the specified object argument
|
jaroslav@475
|
526 |
* is not an array, or if the specified value cannot be converted
|
jaroslav@475
|
527 |
* to the underlying array's component type by an identity or a
|
jaroslav@475
|
528 |
* primitive widening conversion
|
jaroslav@475
|
529 |
* @exception ArrayIndexOutOfBoundsException If the specified {@code index}
|
jaroslav@475
|
530 |
* argument is negative, or if it is greater than or equal to
|
jaroslav@475
|
531 |
* the length of the specified array
|
jaroslav@475
|
532 |
* @see Array#set
|
jaroslav@475
|
533 |
*/
|
jaroslav@484
|
534 |
public static void setInt(Object array, int index, int i)
|
jaroslav@484
|
535 |
throws IllegalArgumentException, ArrayIndexOutOfBoundsException {
|
jaroslav@484
|
536 |
Class<?> t = array.getClass().getComponentType();
|
jaroslav@484
|
537 |
if (t == Integer.TYPE) {
|
jaroslav@571
|
538 |
int[] arr = (int[]) array;
|
jaroslav@484
|
539 |
arr[index] = i;
|
jaroslav@484
|
540 |
} else {
|
jaroslav@484
|
541 |
setLong(array, index, i);
|
jaroslav@484
|
542 |
}
|
jaroslav@484
|
543 |
}
|
jaroslav@475
|
544 |
|
jaroslav@475
|
545 |
/**
|
jaroslav@475
|
546 |
* Sets the value of the indexed component of the specified array
|
jaroslav@475
|
547 |
* object to the specified {@code long} value.
|
jaroslav@475
|
548 |
* @param array the array
|
jaroslav@475
|
549 |
* @param index the index into the array
|
jaroslav@475
|
550 |
* @param l the new value of the indexed component
|
jaroslav@475
|
551 |
* @exception NullPointerException If the specified object argument
|
jaroslav@475
|
552 |
* is null
|
jaroslav@475
|
553 |
* @exception IllegalArgumentException If the specified object argument
|
jaroslav@475
|
554 |
* is not an array, or if the specified value cannot be converted
|
jaroslav@475
|
555 |
* to the underlying array's component type by an identity or a
|
jaroslav@475
|
556 |
* primitive widening conversion
|
jaroslav@475
|
557 |
* @exception ArrayIndexOutOfBoundsException If the specified {@code index}
|
jaroslav@475
|
558 |
* argument is negative, or if it is greater than or equal to
|
jaroslav@475
|
559 |
* the length of the specified array
|
jaroslav@475
|
560 |
* @see Array#set
|
jaroslav@475
|
561 |
*/
|
jaroslav@484
|
562 |
public static void setLong(Object array, int index, long l)
|
jaroslav@484
|
563 |
throws IllegalArgumentException, ArrayIndexOutOfBoundsException {
|
jaroslav@484
|
564 |
Class<?> t = array.getClass().getComponentType();
|
jaroslav@484
|
565 |
if (t == Long.TYPE) {
|
jaroslav@484
|
566 |
long[] arr = (long[]) array;
|
jaroslav@484
|
567 |
arr[index] = l;
|
jaroslav@484
|
568 |
} else {
|
jaroslav@484
|
569 |
setFloat(array, index, l);
|
jaroslav@484
|
570 |
}
|
jaroslav@484
|
571 |
}
|
jaroslav@475
|
572 |
|
jaroslav@475
|
573 |
/**
|
jaroslav@475
|
574 |
* Sets the value of the indexed component of the specified array
|
jaroslav@475
|
575 |
* object to the specified {@code float} value.
|
jaroslav@475
|
576 |
* @param array the array
|
jaroslav@475
|
577 |
* @param index the index into the array
|
jaroslav@475
|
578 |
* @param f the new value of the indexed component
|
jaroslav@475
|
579 |
* @exception NullPointerException If the specified object argument
|
jaroslav@475
|
580 |
* is null
|
jaroslav@475
|
581 |
* @exception IllegalArgumentException If the specified object argument
|
jaroslav@475
|
582 |
* is not an array, or if the specified value cannot be converted
|
jaroslav@475
|
583 |
* to the underlying array's component type by an identity or a
|
jaroslav@475
|
584 |
* primitive widening conversion
|
jaroslav@475
|
585 |
* @exception ArrayIndexOutOfBoundsException If the specified {@code index}
|
jaroslav@475
|
586 |
* argument is negative, or if it is greater than or equal to
|
jaroslav@475
|
587 |
* the length of the specified array
|
jaroslav@475
|
588 |
* @see Array#set
|
jaroslav@475
|
589 |
*/
|
jaroslav@484
|
590 |
public static void setFloat(Object array, int index, float f)
|
jaroslav@484
|
591 |
throws IllegalArgumentException, ArrayIndexOutOfBoundsException {
|
jaroslav@484
|
592 |
Class<?> t = array.getClass().getComponentType();
|
jaroslav@484
|
593 |
if (t == Float.TYPE) {
|
jaroslav@484
|
594 |
float[] arr = (float[])array;
|
jaroslav@484
|
595 |
arr[index] = f;
|
jaroslav@484
|
596 |
} else {
|
jaroslav@484
|
597 |
setDouble(array, index, f);
|
jaroslav@484
|
598 |
}
|
jaroslav@484
|
599 |
}
|
jaroslav@475
|
600 |
|
jaroslav@475
|
601 |
/**
|
jaroslav@475
|
602 |
* Sets the value of the indexed component of the specified array
|
jaroslav@475
|
603 |
* object to the specified {@code double} value.
|
jaroslav@475
|
604 |
* @param array the array
|
jaroslav@475
|
605 |
* @param index the index into the array
|
jaroslav@475
|
606 |
* @param d the new value of the indexed component
|
jaroslav@475
|
607 |
* @exception NullPointerException If the specified object argument
|
jaroslav@475
|
608 |
* is null
|
jaroslav@475
|
609 |
* @exception IllegalArgumentException If the specified object argument
|
jaroslav@475
|
610 |
* is not an array, or if the specified value cannot be converted
|
jaroslav@475
|
611 |
* to the underlying array's component type by an identity or a
|
jaroslav@475
|
612 |
* primitive widening conversion
|
jaroslav@475
|
613 |
* @exception ArrayIndexOutOfBoundsException If the specified {@code index}
|
jaroslav@475
|
614 |
* argument is negative, or if it is greater than or equal to
|
jaroslav@475
|
615 |
* the length of the specified array
|
jaroslav@475
|
616 |
* @see Array#set
|
jaroslav@475
|
617 |
*/
|
jaroslav@484
|
618 |
public static void setDouble(Object array, int index, double d)
|
jaroslav@484
|
619 |
throws IllegalArgumentException, ArrayIndexOutOfBoundsException {
|
jaroslav@484
|
620 |
Class<?> t = array.getClass().getComponentType();
|
jaroslav@484
|
621 |
if (t == Double.TYPE) {
|
jaroslav@484
|
622 |
double[] arr = (double[])array;
|
jaroslav@484
|
623 |
arr[index] = d;
|
jaroslav@484
|
624 |
} else {
|
jaroslav@484
|
625 |
throw new IllegalArgumentException("argument type mismatch");
|
jaroslav@484
|
626 |
}
|
jaroslav@484
|
627 |
}
|
jaroslav@475
|
628 |
|
jaroslav@475
|
629 |
/*
|
jaroslav@475
|
630 |
* Private
|
jaroslav@475
|
631 |
*/
|
jaroslav@475
|
632 |
|
jaroslav@1532
|
633 |
@JavaScriptBody(args = { "primitive", "sig", "fn", "length" }, body =
|
jaroslav@477
|
634 |
"var arr = new Array(length);\n"
|
jaroslav@477
|
635 |
+ "var value = primitive ? 0 : null;\n"
|
jaroslav@477
|
636 |
+ "for(var i = 0; i < length; i++) arr[i] = value;\n"
|
jaroslav@477
|
637 |
+ "arr.jvmName = sig;\n"
|
jaroslav@1532
|
638 |
+ "arr.fnc = fn;\n"
|
jaroslav@1532
|
639 |
// + "java.lang.System.out.println('Assigned ' + arr.jvmName + ' fn: ' + (!!arr.fnc));\n"
|
jaroslav@477
|
640 |
+ "return arr;"
|
jaroslav@477
|
641 |
)
|
jaroslav@1532
|
642 |
private static native Object newArray0(boolean primitive, String sig, Object fn, int length);
|
lubomir@967
|
643 |
@Exported
|
jaroslav@1532
|
644 |
private static Object newArray(boolean primitive, String sig, Object fn, int length) {
|
jaroslav@1532
|
645 |
return newArray0(primitive, sig, fn, length);
|
jaroslav@1532
|
646 |
}
|
jaroslav@475
|
647 |
|
lubomir@967
|
648 |
|
lubomir@967
|
649 |
@Exported
|
lubomir@967
|
650 |
private static Object multiNewArray(String sig, int[] dims, int index)
|
jaroslav@480
|
651 |
throws IllegalArgumentException, NegativeArraySizeException {
|
jaroslav@480
|
652 |
if (dims.length == index + 1) {
|
jaroslav@1532
|
653 |
return newArray(sig.length() == 2, sig, null, dims[index]);
|
jaroslav@480
|
654 |
}
|
jaroslav@1532
|
655 |
Object arr = newArray(false, sig, null, dims[index]);
|
jaroslav@480
|
656 |
String compsig = sig.substring(1);
|
jaroslav@571
|
657 |
int len = getLength(arr);
|
jaroslav@571
|
658 |
for (int i = 0; i < len; i++) {
|
jaroslav@571
|
659 |
setArray(arr, i, multiNewArray(compsig, dims, index + 1));
|
jaroslav@480
|
660 |
}
|
jaroslav@480
|
661 |
return arr;
|
jaroslav@480
|
662 |
}
|
jaroslav@486
|
663 |
private static Object fromPrimitive(Class<?> t, Object array, int index) {
|
jaroslav@486
|
664 |
return Method.fromPrimitive(t, atArray(array, index));
|
jaroslav@486
|
665 |
}
|
jaroslav@486
|
666 |
|
jaroslav@571
|
667 |
@JavaScriptBody(args = { "array", "index" }, body = "return array[index];")
|
jaroslav@486
|
668 |
private static native Object atArray(Object array, int index);
|
jaroslav@571
|
669 |
|
jaroslav@571
|
670 |
@JavaScriptBody(args = { "array", "index", "v" }, body = "array[index] = v;")
|
jaroslav@571
|
671 |
private static native Object setArray(Object array, int index, Object v);
|
jaroslav@475
|
672 |
}
|