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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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*
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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.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 = Method.findArraySignature(componentType);
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return newArray(componentType.isPrimitive(), sig, null, length);
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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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StringBuilder sig = new StringBuilder();
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for (int i = 1; i < dimensions.length; i++) {
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sig.append('[');
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}
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sig.append(Method.findArraySignature(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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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 Method.arrayLength(array);
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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. 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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throws IllegalArgumentException, ArrayIndexOutOfBoundsException {
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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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return fromPrimitive(t, array, index);
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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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* return type by an identity or widening conversion
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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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* @see Array#get
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*/
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public static native boolean getBoolean(Object array, int index)
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throws IllegalArgumentException, ArrayIndexOutOfBoundsException;
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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 byte}.
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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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* return type by an identity or widening conversion
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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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* @see Array#get
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*/
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public static byte getByte(Object array, int index)
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throws IllegalArgumentException, ArrayIndexOutOfBoundsException {
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if (!Method.samePrimitive(array.getClass().getComponentType(), Byte.TYPE)) {
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throw new IllegalArgumentException();
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}
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byte[] arr = (byte[]) array;
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return arr[index];
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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 char}.
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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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jaroslav@475
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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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* @see Array#get
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*/
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public static native char getChar(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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* array object, as a {@code short}.
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jaroslav@475
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*
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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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jaroslav@475
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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 short getShort(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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final Class<?> t = array.getClass().getComponentType();
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jaroslav@1541
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if (Method.samePrimitive(t, Short.TYPE)) {
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jaroslav@483
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short[] arr = (short[]) 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@483
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return getByte(array, index);
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jaroslav@483
|
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}
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jaroslav@475
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jaroslav@475
|
255 |
/**
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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 an {@code int}.
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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
|
264 |
* an array, or if the indexed element cannot be converted to the
|
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}
|
jaroslav@475
|
267 |
* 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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jaroslav@475
|
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* @see Array#get
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jaroslav@475
|
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*/
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jaroslav@483
|
271 |
public static int getInt(Object array, int index)
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jaroslav@483
|
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throws IllegalArgumentException, ArrayIndexOutOfBoundsException {
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jaroslav@483
|
273 |
final Class<?> t = array.getClass().getComponentType();
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jaroslav@1541
|
274 |
if (Method.samePrimitive(t, Integer.TYPE)) {
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jaroslav@483
|
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int[] arr = (int[]) array;
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jaroslav@483
|
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return arr[index];
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jaroslav@483
|
277 |
}
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jaroslav@483
|
278 |
return getShort(array, index);
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jaroslav@483
|
279 |
}
|
jaroslav@475
|
280 |
|
jaroslav@475
|
281 |
/**
|
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 long}.
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jaroslav@475
|
284 |
*
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jaroslav@475
|
285 |
* @param array the array
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jaroslav@475
|
286 |
* @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
|
288 |
* @exception NullPointerException If the specified object is null
|
jaroslav@475
|
289 |
* @exception IllegalArgumentException If the specified object is not
|
jaroslav@475
|
290 |
* an array, or if the indexed element cannot be converted to the
|
jaroslav@475
|
291 |
* return type by an identity or widening conversion
|
jaroslav@475
|
292 |
* @exception ArrayIndexOutOfBoundsException If the specified {@code index}
|
jaroslav@475
|
293 |
* argument is negative, or if it is greater than or equal to the
|
jaroslav@475
|
294 |
* length of the specified array
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jaroslav@475
|
295 |
* @see Array#get
|
jaroslav@475
|
296 |
*/
|
jaroslav@483
|
297 |
public static long getLong(Object array, int index)
|
jaroslav@483
|
298 |
throws IllegalArgumentException, ArrayIndexOutOfBoundsException {
|
jaroslav@483
|
299 |
final Class<?> t = array.getClass().getComponentType();
|
jaroslav@1541
|
300 |
if (Method.samePrimitive(t, Long.TYPE)) {
|
jaroslav@483
|
301 |
long[] arr = (long[]) array;
|
jaroslav@483
|
302 |
return arr[index];
|
jaroslav@483
|
303 |
}
|
jaroslav@483
|
304 |
return getInt(array, index);
|
jaroslav@483
|
305 |
}
|
jaroslav@475
|
306 |
|
jaroslav@475
|
307 |
/**
|
jaroslav@475
|
308 |
* Returns the value of the indexed component in the specified
|
jaroslav@475
|
309 |
* array object, as a {@code float}.
|
jaroslav@475
|
310 |
*
|
jaroslav@475
|
311 |
* @param array the array
|
jaroslav@475
|
312 |
* @param index the index
|
jaroslav@475
|
313 |
* @return the value of the indexed component in the specified array
|
jaroslav@475
|
314 |
* @exception NullPointerException If the specified object is null
|
jaroslav@475
|
315 |
* @exception IllegalArgumentException If the specified object is not
|
jaroslav@475
|
316 |
* an array, or if the indexed element cannot be converted to the
|
jaroslav@475
|
317 |
* return type by an identity or widening conversion
|
jaroslav@475
|
318 |
* @exception ArrayIndexOutOfBoundsException If the specified {@code index}
|
jaroslav@475
|
319 |
* argument is negative, or if it is greater than or equal to the
|
jaroslav@475
|
320 |
* length of the specified array
|
jaroslav@475
|
321 |
* @see Array#get
|
jaroslav@475
|
322 |
*/
|
jaroslav@483
|
323 |
public static float getFloat(Object array, int index)
|
jaroslav@483
|
324 |
throws IllegalArgumentException, ArrayIndexOutOfBoundsException {
|
jaroslav@483
|
325 |
final Class<?> t = array.getClass().getComponentType();
|
jaroslav@1541
|
326 |
if (Method.samePrimitive(t, Float.TYPE)) {
|
jaroslav@483
|
327 |
float[] arr = (float[]) array;
|
jaroslav@483
|
328 |
return arr[index];
|
jaroslav@483
|
329 |
}
|
jaroslav@483
|
330 |
return getLong(array, index);
|
jaroslav@483
|
331 |
}
|
jaroslav@475
|
332 |
|
jaroslav@475
|
333 |
/**
|
jaroslav@475
|
334 |
* Returns the value of the indexed component in the specified
|
jaroslav@475
|
335 |
* array object, as a {@code double}.
|
jaroslav@475
|
336 |
*
|
jaroslav@475
|
337 |
* @param array the array
|
jaroslav@475
|
338 |
* @param index the index
|
jaroslav@475
|
339 |
* @return the value of the indexed component in the specified array
|
jaroslav@475
|
340 |
* @exception NullPointerException If the specified object is null
|
jaroslav@475
|
341 |
* @exception IllegalArgumentException If the specified object is not
|
jaroslav@475
|
342 |
* an array, or if the indexed element cannot be converted to the
|
jaroslav@475
|
343 |
* return type by an identity or widening conversion
|
jaroslav@475
|
344 |
* @exception ArrayIndexOutOfBoundsException If the specified {@code index}
|
jaroslav@475
|
345 |
* argument is negative, or if it is greater than or equal to the
|
jaroslav@475
|
346 |
* length of the specified array
|
jaroslav@475
|
347 |
* @see Array#get
|
jaroslav@475
|
348 |
*/
|
jaroslav@483
|
349 |
public static double getDouble(Object array, int index)
|
jaroslav@483
|
350 |
throws IllegalArgumentException, ArrayIndexOutOfBoundsException {
|
jaroslav@483
|
351 |
final Class<?> t = array.getClass().getComponentType();
|
jaroslav@1541
|
352 |
if (Method.samePrimitive(t, Double.TYPE)) {
|
jaroslav@483
|
353 |
double[] arr = (double[]) array;
|
jaroslav@483
|
354 |
return arr[index];
|
jaroslav@483
|
355 |
}
|
jaroslav@483
|
356 |
return getFloat(array, index);
|
jaroslav@483
|
357 |
}
|
jaroslav@475
|
358 |
|
jaroslav@475
|
359 |
/**
|
jaroslav@475
|
360 |
* Sets the value of the indexed component of the specified array
|
jaroslav@475
|
361 |
* object to the specified new value. The new value is first
|
jaroslav@475
|
362 |
* automatically unwrapped if the array has a primitive component
|
jaroslav@475
|
363 |
* type.
|
jaroslav@475
|
364 |
* @param array the array
|
jaroslav@475
|
365 |
* @param index the index into the array
|
jaroslav@475
|
366 |
* @param value the new value of the indexed component
|
jaroslav@475
|
367 |
* @exception NullPointerException If the specified object argument
|
jaroslav@475
|
368 |
* is null
|
jaroslav@475
|
369 |
* @exception IllegalArgumentException If the specified object argument
|
jaroslav@475
|
370 |
* is not an array, or if the array component type is primitive and
|
jaroslav@475
|
371 |
* an unwrapping conversion fails
|
jaroslav@475
|
372 |
* @exception ArrayIndexOutOfBoundsException If the specified {@code index}
|
jaroslav@475
|
373 |
* argument is negative, or if it is greater than or equal to
|
jaroslav@475
|
374 |
* the length of the specified array
|
jaroslav@475
|
375 |
*/
|
jaroslav@485
|
376 |
public static void set(Object array, int index, Object value)
|
jaroslav@485
|
377 |
throws IllegalArgumentException, ArrayIndexOutOfBoundsException {
|
jaroslav@485
|
378 |
if (array.getClass().getComponentType().isPrimitive()) {
|
jaroslav@485
|
379 |
throw new IllegalArgumentException();
|
jaroslav@485
|
380 |
} else {
|
jaroslav@485
|
381 |
Object[] arr = (Object[])array;
|
jaroslav@485
|
382 |
arr[index] = value;
|
jaroslav@485
|
383 |
}
|
jaroslav@485
|
384 |
}
|
jaroslav@475
|
385 |
|
jaroslav@475
|
386 |
/**
|
jaroslav@475
|
387 |
* Sets the value of the indexed component of the specified array
|
jaroslav@475
|
388 |
* object to the specified {@code boolean} value.
|
jaroslav@475
|
389 |
* @param array the array
|
jaroslav@475
|
390 |
* @param index the index into the array
|
jaroslav@475
|
391 |
* @param z the new value of the indexed component
|
jaroslav@475
|
392 |
* @exception NullPointerException If the specified object argument
|
jaroslav@475
|
393 |
* is null
|
jaroslav@475
|
394 |
* @exception IllegalArgumentException If the specified object argument
|
jaroslav@475
|
395 |
* is not an array, or if the specified value cannot be converted
|
jaroslav@475
|
396 |
* to the underlying array's component type by an identity or a
|
jaroslav@475
|
397 |
* primitive widening conversion
|
jaroslav@475
|
398 |
* @exception ArrayIndexOutOfBoundsException If the specified {@code index}
|
jaroslav@475
|
399 |
* argument is negative, or if it is greater than or equal to
|
jaroslav@475
|
400 |
* the length of the specified array
|
jaroslav@475
|
401 |
* @see Array#set
|
jaroslav@475
|
402 |
*/
|
jaroslav@475
|
403 |
public static native void setBoolean(Object array, int index, boolean z)
|
jaroslav@475
|
404 |
throws IllegalArgumentException, ArrayIndexOutOfBoundsException;
|
jaroslav@475
|
405 |
|
jaroslav@475
|
406 |
/**
|
jaroslav@475
|
407 |
* Sets the value of the indexed component of the specified array
|
jaroslav@475
|
408 |
* object to the specified {@code byte} value.
|
jaroslav@475
|
409 |
* @param array the array
|
jaroslav@475
|
410 |
* @param index the index into the array
|
jaroslav@475
|
411 |
* @param b the new value of the indexed component
|
jaroslav@475
|
412 |
* @exception NullPointerException If the specified object argument
|
jaroslav@475
|
413 |
* is null
|
jaroslav@475
|
414 |
* @exception IllegalArgumentException If the specified object argument
|
jaroslav@475
|
415 |
* is not an array, or if the specified value cannot be converted
|
jaroslav@475
|
416 |
* to the underlying array's component type by an identity or a
|
jaroslav@475
|
417 |
* primitive widening conversion
|
jaroslav@475
|
418 |
* @exception ArrayIndexOutOfBoundsException If the specified {@code index}
|
jaroslav@475
|
419 |
* argument is negative, or if it is greater than or equal to
|
jaroslav@475
|
420 |
* the length of the specified array
|
jaroslav@475
|
421 |
* @see Array#set
|
jaroslav@475
|
422 |
*/
|
jaroslav@484
|
423 |
public static void setByte(Object array, int index, byte b)
|
jaroslav@484
|
424 |
throws IllegalArgumentException, ArrayIndexOutOfBoundsException {
|
jaroslav@484
|
425 |
Class<?> t = array.getClass().getComponentType();
|
jaroslav@1541
|
426 |
if (Method.samePrimitive(t, Byte.TYPE)) {
|
jaroslav@484
|
427 |
byte[] arr = (byte[]) array;
|
jaroslav@484
|
428 |
arr[index] = b;
|
jaroslav@484
|
429 |
} else {
|
jaroslav@484
|
430 |
setShort(array, index, b);
|
jaroslav@484
|
431 |
}
|
jaroslav@484
|
432 |
}
|
jaroslav@475
|
433 |
|
jaroslav@475
|
434 |
/**
|
jaroslav@475
|
435 |
* Sets the value of the indexed component of the specified array
|
jaroslav@475
|
436 |
* object to the specified {@code char} value.
|
jaroslav@475
|
437 |
* @param array the array
|
jaroslav@475
|
438 |
* @param index the index into the array
|
jaroslav@475
|
439 |
* @param c the new value of the indexed component
|
jaroslav@475
|
440 |
* @exception NullPointerException If the specified object argument
|
jaroslav@475
|
441 |
* is null
|
jaroslav@475
|
442 |
* @exception IllegalArgumentException If the specified object argument
|
jaroslav@475
|
443 |
* is not an array, or if the specified value cannot be converted
|
jaroslav@475
|
444 |
* to the underlying array's component type by an identity or a
|
jaroslav@475
|
445 |
* primitive widening conversion
|
jaroslav@475
|
446 |
* @exception ArrayIndexOutOfBoundsException If the specified {@code index}
|
jaroslav@475
|
447 |
* argument is negative, or if it is greater than or equal to
|
jaroslav@475
|
448 |
* the length of the specified array
|
jaroslav@475
|
449 |
* @see Array#set
|
jaroslav@475
|
450 |
*/
|
jaroslav@475
|
451 |
public static native void setChar(Object array, int index, char c)
|
jaroslav@475
|
452 |
throws IllegalArgumentException, ArrayIndexOutOfBoundsException;
|
jaroslav@475
|
453 |
|
jaroslav@475
|
454 |
/**
|
jaroslav@475
|
455 |
* Sets the value of the indexed component of the specified array
|
jaroslav@475
|
456 |
* object to the specified {@code short} value.
|
jaroslav@475
|
457 |
* @param array the array
|
jaroslav@475
|
458 |
* @param index the index into the array
|
jaroslav@475
|
459 |
* @param s the new value of the indexed component
|
jaroslav@475
|
460 |
* @exception NullPointerException If the specified object argument
|
jaroslav@475
|
461 |
* is null
|
jaroslav@475
|
462 |
* @exception IllegalArgumentException If the specified object argument
|
jaroslav@475
|
463 |
* is not an array, or if the specified value cannot be converted
|
jaroslav@475
|
464 |
* to the underlying array's component type by an identity or a
|
jaroslav@475
|
465 |
* primitive widening conversion
|
jaroslav@475
|
466 |
* @exception ArrayIndexOutOfBoundsException If the specified {@code index}
|
jaroslav@475
|
467 |
* argument is negative, or if it is greater than or equal to
|
jaroslav@475
|
468 |
* the length of the specified array
|
jaroslav@475
|
469 |
* @see Array#set
|
jaroslav@475
|
470 |
*/
|
jaroslav@484
|
471 |
public static void setShort(Object array, int index, short s)
|
jaroslav@484
|
472 |
throws IllegalArgumentException, ArrayIndexOutOfBoundsException {
|
jaroslav@484
|
473 |
Class<?> t = array.getClass().getComponentType();
|
jaroslav@1541
|
474 |
if (Method.samePrimitive(t, Short.TYPE)) {
|
jaroslav@484
|
475 |
short[] arr = (short[]) array;
|
jaroslav@484
|
476 |
arr[index] = s;
|
jaroslav@484
|
477 |
} else {
|
jaroslav@484
|
478 |
setInt(array, index, s);
|
jaroslav@484
|
479 |
}
|
jaroslav@484
|
480 |
|
jaroslav@484
|
481 |
}
|
jaroslav@571
|
482 |
|
jaroslav@475
|
483 |
/**
|
jaroslav@475
|
484 |
* Sets the value of the indexed component of the specified array
|
jaroslav@475
|
485 |
* object to the specified {@code int} value.
|
jaroslav@475
|
486 |
* @param array the array
|
jaroslav@475
|
487 |
* @param index the index into the array
|
jaroslav@475
|
488 |
* @param i the new value of the indexed component
|
jaroslav@475
|
489 |
* @exception NullPointerException If the specified object argument
|
jaroslav@475
|
490 |
* is null
|
jaroslav@475
|
491 |
* @exception IllegalArgumentException If the specified object argument
|
jaroslav@475
|
492 |
* is not an array, or if the specified value cannot be converted
|
jaroslav@475
|
493 |
* to the underlying array's component type by an identity or a
|
jaroslav@475
|
494 |
* primitive widening conversion
|
jaroslav@475
|
495 |
* @exception ArrayIndexOutOfBoundsException If the specified {@code index}
|
jaroslav@475
|
496 |
* argument is negative, or if it is greater than or equal to
|
jaroslav@475
|
497 |
* the length of the specified array
|
jaroslav@475
|
498 |
* @see Array#set
|
jaroslav@475
|
499 |
*/
|
jaroslav@484
|
500 |
public static void setInt(Object array, int index, int i)
|
jaroslav@484
|
501 |
throws IllegalArgumentException, ArrayIndexOutOfBoundsException {
|
jaroslav@484
|
502 |
Class<?> t = array.getClass().getComponentType();
|
jaroslav@1541
|
503 |
if (Method.samePrimitive(t, Integer.TYPE)) {
|
jaroslav@571
|
504 |
int[] arr = (int[]) array;
|
jaroslav@484
|
505 |
arr[index] = i;
|
jaroslav@484
|
506 |
} else {
|
jaroslav@484
|
507 |
setLong(array, index, i);
|
jaroslav@484
|
508 |
}
|
jaroslav@484
|
509 |
}
|
jaroslav@475
|
510 |
|
jaroslav@475
|
511 |
/**
|
jaroslav@475
|
512 |
* Sets the value of the indexed component of the specified array
|
jaroslav@475
|
513 |
* object to the specified {@code long} value.
|
jaroslav@475
|
514 |
* @param array the array
|
jaroslav@475
|
515 |
* @param index the index into the array
|
jaroslav@475
|
516 |
* @param l the new value of the indexed component
|
jaroslav@475
|
517 |
* @exception NullPointerException If the specified object argument
|
jaroslav@475
|
518 |
* is null
|
jaroslav@475
|
519 |
* @exception IllegalArgumentException If the specified object argument
|
jaroslav@475
|
520 |
* is not an array, or if the specified value cannot be converted
|
jaroslav@475
|
521 |
* to the underlying array's component type by an identity or a
|
jaroslav@475
|
522 |
* primitive widening conversion
|
jaroslav@475
|
523 |
* @exception ArrayIndexOutOfBoundsException If the specified {@code index}
|
jaroslav@475
|
524 |
* argument is negative, or if it is greater than or equal to
|
jaroslav@475
|
525 |
* the length of the specified array
|
jaroslav@475
|
526 |
* @see Array#set
|
jaroslav@475
|
527 |
*/
|
jaroslav@484
|
528 |
public static void setLong(Object array, int index, long l)
|
jaroslav@484
|
529 |
throws IllegalArgumentException, ArrayIndexOutOfBoundsException {
|
jaroslav@484
|
530 |
Class<?> t = array.getClass().getComponentType();
|
jaroslav@1541
|
531 |
if (Method.samePrimitive(t, Long.TYPE)) {
|
jaroslav@484
|
532 |
long[] arr = (long[]) array;
|
jaroslav@484
|
533 |
arr[index] = l;
|
jaroslav@484
|
534 |
} else {
|
jaroslav@484
|
535 |
setFloat(array, index, l);
|
jaroslav@484
|
536 |
}
|
jaroslav@484
|
537 |
}
|
jaroslav@475
|
538 |
|
jaroslav@475
|
539 |
/**
|
jaroslav@475
|
540 |
* Sets the value of the indexed component of the specified array
|
jaroslav@475
|
541 |
* object to the specified {@code float} value.
|
jaroslav@475
|
542 |
* @param array the array
|
jaroslav@475
|
543 |
* @param index the index into the array
|
jaroslav@475
|
544 |
* @param f the new value of the indexed component
|
jaroslav@475
|
545 |
* @exception NullPointerException If the specified object argument
|
jaroslav@475
|
546 |
* is null
|
jaroslav@475
|
547 |
* @exception IllegalArgumentException If the specified object argument
|
jaroslav@475
|
548 |
* is not an array, or if the specified value cannot be converted
|
jaroslav@475
|
549 |
* to the underlying array's component type by an identity or a
|
jaroslav@475
|
550 |
* primitive widening conversion
|
jaroslav@475
|
551 |
* @exception ArrayIndexOutOfBoundsException If the specified {@code index}
|
jaroslav@475
|
552 |
* argument is negative, or if it is greater than or equal to
|
jaroslav@475
|
553 |
* the length of the specified array
|
jaroslav@475
|
554 |
* @see Array#set
|
jaroslav@475
|
555 |
*/
|
jaroslav@484
|
556 |
public static void setFloat(Object array, int index, float f)
|
jaroslav@484
|
557 |
throws IllegalArgumentException, ArrayIndexOutOfBoundsException {
|
jaroslav@484
|
558 |
Class<?> t = array.getClass().getComponentType();
|
jaroslav@1541
|
559 |
if (Method.samePrimitive(t, Float.TYPE)) {
|
jaroslav@484
|
560 |
float[] arr = (float[])array;
|
jaroslav@484
|
561 |
arr[index] = f;
|
jaroslav@484
|
562 |
} else {
|
jaroslav@484
|
563 |
setDouble(array, index, f);
|
jaroslav@484
|
564 |
}
|
jaroslav@484
|
565 |
}
|
jaroslav@475
|
566 |
|
jaroslav@475
|
567 |
/**
|
jaroslav@475
|
568 |
* Sets the value of the indexed component of the specified array
|
jaroslav@475
|
569 |
* object to the specified {@code double} value.
|
jaroslav@475
|
570 |
* @param array the array
|
jaroslav@475
|
571 |
* @param index the index into the array
|
jaroslav@475
|
572 |
* @param d the new value of the indexed component
|
jaroslav@475
|
573 |
* @exception NullPointerException If the specified object argument
|
jaroslav@475
|
574 |
* is null
|
jaroslav@475
|
575 |
* @exception IllegalArgumentException If the specified object argument
|
jaroslav@475
|
576 |
* is not an array, or if the specified value cannot be converted
|
jaroslav@475
|
577 |
* to the underlying array's component type by an identity or a
|
jaroslav@475
|
578 |
* primitive widening conversion
|
jaroslav@475
|
579 |
* @exception ArrayIndexOutOfBoundsException If the specified {@code index}
|
jaroslav@475
|
580 |
* argument is negative, or if it is greater than or equal to
|
jaroslav@475
|
581 |
* the length of the specified array
|
jaroslav@475
|
582 |
* @see Array#set
|
jaroslav@475
|
583 |
*/
|
jaroslav@484
|
584 |
public static void setDouble(Object array, int index, double d)
|
jaroslav@484
|
585 |
throws IllegalArgumentException, ArrayIndexOutOfBoundsException {
|
jaroslav@484
|
586 |
Class<?> t = array.getClass().getComponentType();
|
jaroslav@1541
|
587 |
if (Method.samePrimitive(t, Double.TYPE)) {
|
jaroslav@484
|
588 |
double[] arr = (double[])array;
|
jaroslav@484
|
589 |
arr[index] = d;
|
jaroslav@484
|
590 |
} else {
|
jaroslav@484
|
591 |
throw new IllegalArgumentException("argument type mismatch");
|
jaroslav@484
|
592 |
}
|
jaroslav@484
|
593 |
}
|
jaroslav@475
|
594 |
|
jaroslav@475
|
595 |
/*
|
jaroslav@475
|
596 |
* Private
|
jaroslav@475
|
597 |
*/
|
jaroslav@475
|
598 |
|
lubomir@967
|
599 |
@Exported
|
jaroslav@1702
|
600 |
private static Object newArray(boolean primitive, String sig, Object fn, int length) {
|
jaroslav@1702
|
601 |
return Method.newArray(primitive, sig, fn, length);
|
jaroslav@1702
|
602 |
}
|
jaroslav@475
|
603 |
|
jaroslav@1534
|
604 |
@Exported
|
jaroslav@1534
|
605 |
private static boolean isInstance(Object arr, String sig) {
|
jaroslav@1534
|
606 |
if (arr == null) {
|
jaroslav@1534
|
607 |
return false;
|
jaroslav@1534
|
608 |
}
|
jaroslav@1534
|
609 |
return sig.equals(arr.getClass().getName());
|
jaroslav@1534
|
610 |
}
|
jaroslav@1534
|
611 |
|
jaroslav@1534
|
612 |
@Exported
|
jaroslav@1534
|
613 |
private static boolean isInstance(Object arr, int dimensions, Object fn) throws ClassNotFoundException {
|
jaroslav@1534
|
614 |
if (arr == null) {
|
jaroslav@1534
|
615 |
return false;
|
jaroslav@1534
|
616 |
}
|
jaroslav@1534
|
617 |
// log("isInstance for " + arr + " and " + dimensions);
|
jaroslav@1534
|
618 |
Class<?> c = arr.getClass();
|
jaroslav@1534
|
619 |
while (dimensions-- > 0) {
|
jaroslav@1534
|
620 |
// log(" class: " + c);
|
jaroslav@1534
|
621 |
c = c.getComponentType();
|
jaroslav@1534
|
622 |
// log(" next class: " + c);
|
jaroslav@1534
|
623 |
if (c == null) {
|
jaroslav@1534
|
624 |
return false;
|
jaroslav@1534
|
625 |
}
|
jaroslav@1534
|
626 |
}
|
jaroslav@1702
|
627 |
Class<?> t = Method.classFromFn(fn);
|
jaroslav@1534
|
628 |
// log(" to check: " + t);
|
jaroslav@1534
|
629 |
return t.isAssignableFrom(c);
|
jaroslav@1534
|
630 |
}
|
jaroslav@1534
|
631 |
|
jaroslav@1534
|
632 |
// @JavaScriptBody(args = { "m" }, body = "java.lang.System.out.println(m.toString().toString());")
|
jaroslav@1534
|
633 |
// private static native void log(Object m);
|
jaroslav@1534
|
634 |
|
lubomir@967
|
635 |
@Exported
|
jaroslav@1535
|
636 |
private static Object multiNewArray(String sig, int[] dims, Object fn)
|
jaroslav@1535
|
637 |
throws IllegalArgumentException, NegativeArraySizeException {
|
jaroslav@1535
|
638 |
return multiNewArray(sig, dims, 0, fn);
|
jaroslav@1535
|
639 |
}
|
jaroslav@1535
|
640 |
private static Object multiNewArray(String sig, int[] dims, int index, Object fn)
|
jaroslav@480
|
641 |
throws IllegalArgumentException, NegativeArraySizeException {
|
jaroslav@480
|
642 |
if (dims.length == index + 1) {
|
jaroslav@1535
|
643 |
return newArray(sig.length() == 2, sig, fn, dims[index]);
|
jaroslav@480
|
644 |
}
|
jaroslav@1532
|
645 |
Object arr = newArray(false, sig, null, dims[index]);
|
jaroslav@480
|
646 |
String compsig = sig.substring(1);
|
jaroslav@571
|
647 |
int len = getLength(arr);
|
jaroslav@571
|
648 |
for (int i = 0; i < len; i++) {
|
jaroslav@1702
|
649 |
Method.setArray(arr, i, multiNewArray(compsig, dims, index + 1, fn));
|
jaroslav@480
|
650 |
}
|
jaroslav@480
|
651 |
return arr;
|
jaroslav@480
|
652 |
}
|
jaroslav@486
|
653 |
private static Object fromPrimitive(Class<?> t, Object array, int index) {
|
jaroslav@1702
|
654 |
return Method.fromPrimitive(t, Method.atArray(array, index));
|
jaroslav@486
|
655 |
}
|
jaroslav@475
|
656 |
}
|