Mercurial > hg > Members > kono > jpf-core
view src/main/gov/nasa/jpf/util/script/Repetition.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.util.script; public class Repetition extends ScriptElementContainer { int repeatCount; class RepetitionIterator extends ScriptElementContainer.SECIterator { int count; RepetitionIterator () { count = 0; cur = firstChild; } @Override public boolean hasNext() { return ((cur != null) || (count<repeatCount) || (repeatCount < 0)); } @Override public ScriptElement next() { if (cur != null) { ScriptElement ret = cur; cur = cur.nextSibling; return ret; } else { if ((++count < repeatCount) || (repeatCount < 0) ) { ScriptElement ret = firstChild; cur = ret.nextSibling; return ret; } else { return null; } } } @Override public void remove() { throw new UnsupportedOperationException("no ScriptElement removal supported"); } } public Repetition (ScriptElement parent, int n, int line) { super(parent, line); repeatCount = n; } @Override public SECIterator iterator() { return new RepetitionIterator(); } @Override public String toString() { return toString("REPEAT " + repeatCount ); } public int getRepeatCount() { return repeatCount; } @Override public void process (ElementProcessor p) { p.process(this); } }