1 /* 2 * Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 package vm.mlvm.meth.share; 25 26 import java.lang.invoke.MethodType; 27 import java.util.ArrayList; 28 import java.util.Arrays; 29 import java.util.List; 30 31 public final class Arguments { 32 33 public static List<Argument> listFromArray(Object[][] a) { 34 ArrayList<Argument> result = new ArrayList<Argument>(a.length); 35 36 for (Object[] elem : a) { 37 result.add(Argument.fromArray(elem)); 38 } 39 40 return result; 41 } 42 43 public static Argument[] fromArray(Object[][] a) { 44 return listFromArray(a).toArray(new Argument[a.length]); 45 } 46 47 public static Class<?>[] typesArray(List<Argument> vts) { 48 return typesArray(vts.toArray(new Argument[vts.size()])); 49 } 50 51 public static Class<?>[] typesArray(Argument[] vts) { 52 Class<?>[] result = new Class<?>[vts.length]; 53 for (int i = 0; i < vts.length; i++) 54 result[i] = vts[i].getType(); 55 return result; 56 } 57 58 public static Object[] valuesArray(List<Argument> vts) { 59 return valuesArray(vts.toArray(new Argument[vts.size()])); 60 } 61 62 public static Object[] valuesArray(Argument[] vts) { 63 Object[] result = new Object[vts.length]; 64 for (int i = 0; i < vts.length; i++) 65 result[i] = vts[i].getValue(); 66 return result; 67 } 68 69 public static Argument[] fromMethodType(boolean isVirtual, MethodType t, MethodParameterValueProvider vp) { 70 int virtualOffset = isVirtual ? 1 : 0; 71 Class<?>[] paramTypes = t.parameterArray(); 72 Argument[] result = new Argument[paramTypes.length - virtualOffset]; 73 for (int i = virtualOffset; i < paramTypes.length; i++) { 74 result[i - virtualOffset] = new Argument(paramTypes[i], vp.getValue(t, i)); 75 } 76 return result; 77 } 78 79 public static int[] findTag(List<Argument> args, String tag) { 80 return findTag(args.toArray(new Argument[args.size()]), tag); 81 } 82 83 public static int[] findTag(Argument[] args, String tag) { 84 int[] result = new int[args.length]; 85 int resCount = 0; 86 for ( int i = 0; i < args.length; i++ ) { 87 if ( args[i].getTag().equals(tag) ) 88 result[resCount++] = i; 89 } 90 91 return Arrays.copyOf(result, resCount); 92 } 93 94 }