Mercurial > hg > Members > kono > jpf-core
view src/main/gov/nasa/jpf/vm/JPFOutputStream.java @ 3:fdc263e5806b
added inverse matching in StringSetMatcher. Since this is not easy to do in regexes, it's at the next hight level in StringSetMatcher
added a optional CG accessor interface (geChoice(i), getAllChoices(), getProcessedChoices() getUnprocessedChoices()) that can be used from listeners and peers to enumerate/analyse choice sets. Note that not all CGs have to support this as there is no requirement that CGs actually use pre-computed choice sets. The low level accessor is getChoice(i), ChoiceGeneratorBase provides generic (not very efficient) set accessor implementations. Note that ChoiceGeneratorBase.getChoice() has to be overridden in subclasses in order to support choice enumeration, the default impl is just there so that we don't break subclass compilation
author | Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> |
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date | Tue, 03 Feb 2015 08:49:33 -0800 |
parents | 61d41facf527 |
children |
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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; import java.io.IOException; import java.io.OutputStream; import java.io.PrintStream; import gov.nasa.jpf.util.FinalBitSet; import gov.nasa.jpf.util.PrintUtils; /** * stream to write program state info in a readable and diff-able format. * This is mostly intended for debugging, but could also at some point be * used to restore such states. * * Currently supports heap objects, classes (static fields), threads and stack frames */ public class JPFOutputStream extends OutputStream { PrintStream ps; boolean useSid = false; int maxElements = -1; public JPFOutputStream (OutputStream os){ ps = new PrintStream(os); } public JPFOutputStream (PrintStream ps){ this.ps = ps; } public JPFOutputStream (){ this(System.out); } @Override public void close(){ ps.flush(); if (ps != System.err && ps != System.out){ ps.close(); } } public void printCommentLine(String msg){ ps.print("// "); ps.println(msg); } public void print (ElementInfo ei, FieldInfo fi, boolean isFiltered){ ps.print(fi.getName()); ps.print(':'); if (isFiltered){ ps.print("X"); } else { switch (fi.getTypeCode()) { case Types.T_BOOLEAN: ps.print(ei.getBooleanField(fi)); break; case Types.T_BYTE: ps.print(ei.getByteField(fi)); break; case Types.T_CHAR: PrintUtils.printCharLiteral(ps, ei.getCharField(fi)); break; case Types.T_SHORT: ps.print(ei.getShortField(fi)); break; case Types.T_INT: ps.print(ei.getIntField(fi)); break; case Types.T_LONG: ps.print(ei.getLongField(fi)); break; case Types.T_FLOAT: ps.print(ei.getFloatField(fi)); break; case Types.T_DOUBLE: ps.print(ei.getDoubleField(fi)); break; case Types.T_REFERENCE: case Types.T_ARRAY: PrintUtils.printReference(ps, ei.getReferenceField(fi)); break; } } } protected void printFields (ElementInfo ei, FieldInfo[] fields, FinalBitSet filterMask){ if (fields != null){ for (int i = 0; i < fields.length; i++) { if (i > 0) { ps.print(','); } print(ei, fields[i], (filterMask != null && filterMask.get(i))); } } } public void print (ElementInfo ei, FinalBitSet filterMask){ boolean isObject = ei.isObject(); ClassInfo ci = ei.getClassInfo(); int ref = (useSid) ? ei.getSid() : ei.getObjectRef(); ps.printf("@%x ", ref); if (isObject){ ps.print("object "); if (ei.isArray()){ ps.print( Types.getTypeName(ci.getName())); } else { ps.print(ci.getName()); } } else { ps.print("class "); ps.print(ci.getName()); } ps.print(':'); if (isObject){ if (ei.isArray()){ ps.print('['); ei.getArrayFields().printElements(ps, maxElements); ps.print(']'); } else { ps.print('{'); printFields(ei, ci.getInstanceFields(), filterMask); ps.print('}'); } } else { ps.print('{'); printFields( ei, ci.getDeclaredStaticFields(), filterMask); ps.print('}'); } } public void print (ThreadInfo ti){ PrintUtils.printReference(ps, ti.getThreadObjectRef()); ps.print(' '); ps.print(ti.getStateDescription()); } public void print (StackFrame frame){ MethodInfo mi = frame.getMethodInfo(); ps.print('@'); ps.print(frame.getDepth()); ps.print(" frame "); ps.print( mi.getFullName()); ps.print( ":{" ); if (!mi.isStatic()){ ps.print("this:"); PrintUtils.printReference(ps, frame.getThis()); ps.print(','); } ps.print("pc:"); ps.print(frame.getPC().getInstructionIndex()); ps.print(",slots:["); frame.printSlots(ps); ps.print(']'); ps.print('}'); } public void println(){ ps.println(); } public void print (NativeStateHolder nsh){ ps.print(nsh); ps.print(":"); ps.print(nsh.getHash()); } @Override public void write(int b) throws IOException { ps.write(b); } }