Mercurial > hg > Members > kono > jpf-core
view src/main/gov/nasa/jpf/vm/LocalVarInfo.java @ 0:61d41facf527
initial v8 import (history reset)
author | Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> |
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date | Fri, 23 Jan 2015 10:14:01 -0800 |
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/* * Copyright (C) 2014, United States Government, as represented by the * Administrator of the National Aeronautics and Space Administration. * All rights reserved. * * The Java Pathfinder core (jpf-core) platform is licensed under the * Apache License, Version 2.0 (the "License"); you may not use this file except * in compliance with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0. * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package gov.nasa.jpf.vm; public class LocalVarInfo extends InfoObject { private final String name; private String type; // lazy initialized FQN according to JLS 6.7 (e.g. "int", "x.Y[]") private final String signature; // e.g. "I", "[Lx/Y;" private final String genericSignature; // non-type erased generic signature(s) private final int startPC; private final int endPC; private final int slotIndex; public LocalVarInfo(String name, String signature, String genericSignature, int startPC, int endPC, int slotIndex){ this.name = name; this.signature = signature; this.genericSignature = genericSignature; this.startPC = startPC; this.endPC = endPC; this.slotIndex = slotIndex; } @Override public String toString(){ StringBuilder sb = new StringBuilder(); sb.append("LocalVarInfo["); sb.append("name=\""); sb.append(name); sb.append("\",signature=\""); sb.append(signature); sb.append("\",startPC="); sb.append(startPC); sb.append(",endPC="); sb.append(endPC); sb.append(",slotIndex="); sb.append(slotIndex); sb.append("]"); return sb.toString(); } public String getName() { return name; } public String getType() { if (type == null){ type = Types.getTypeName(signature); } return type; } public String getSignature() { return signature; } public String getGenericSignature() { return genericSignature; } public int getStartPC() { return startPC; } public int getLength() { return endPC - startPC +1; } public int getSlotIndex() { return slotIndex; } public boolean matches (String name, int pc){ return (startPC <= pc && endPC >= pc && this.name.equals(name)); } public boolean matches (int slotIdx, int pc){ return (slotIdx == slotIndex) && (pc >= startPC) && (pc <= endPC); } public boolean isNumeric(){ char c = signature.charAt(0); return (c == 'B' || c == 'S' || c == 'I' || c == 'J' || c == 'F' || c == 'D'); } public boolean isBoolean(){ char c = signature.charAt(0); return (c == 'Z'); } public int getSlotSize(){ char c = signature.charAt(0); if (c == 'J' || c == 'D'){ return 2; } else { return 1; } } public boolean isFloatingPoint(){ char c = signature.charAt(0); return (c == 'F' || c == 'D'); } }