1/* 2 * Copyright (c) 2014, 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 25package sun.jvm.hotspot.oops; 26 27import java.io.*; 28import java.util.*; 29import sun.jvm.hotspot.debugger.*; 30import sun.jvm.hotspot.runtime.*; 31import sun.jvm.hotspot.types.*; 32import sun.jvm.hotspot.utilities.*; 33 34// ParametersTypeData 35// 36// A ParametersTypeData is used to access profiling information about 37// types of parameters to a method 38public class ParametersTypeData<K,M> extends ArrayData { 39 final TypeStackSlotEntries<K,M> parameters; 40 41 static int stackSlotLocalOffset(int i) { 42 return arrayStartOffSet + TypeStackSlotEntries.stackSlotLocalOffset(i); 43 } 44 45 static int typeLocalOffset(int i) { 46 return arrayStartOffSet + TypeStackSlotEntries.typeLocalOffset(i); 47 } 48 49 public ParametersTypeData(MethodDataInterface<K,M> methodData, DataLayout layout) { 50 super(layout); 51 parameters = new TypeStackSlotEntries<K,M>(methodData, this, 1, numberOfParameters()); 52 } 53 54 public int numberOfParameters() { 55 return arrayLen() / TypeStackSlotEntries.perArgCount(); 56 } 57 58 int stackSlot(int i) { 59 return parameters.stackSlot(i); 60 } 61 62 public K type(int i) { 63 return parameters.type(i); 64 } 65 66 static public int typeIndex(int i) { 67 return typeLocalOffset(i); 68 } 69 70 public void printDataOn(PrintStream st) { 71 st.print("parameter types"); 72 parameters.printDataOn(st); 73 } 74} 75