86 lines
3.5 KiB
Java
86 lines
3.5 KiB
Java
/*
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* Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package vm.mlvm.share.jpda;
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import nsk.share.ArgumentParser;
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import vm.mlvm.share.Env;
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import com.sun.jdi.AbsentInformationException;
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import com.sun.jdi.Location;
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import com.sun.jdi.ObjectReference;
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import com.sun.jdi.ReferenceType;
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import com.sun.jdi.StackFrame;
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public class StratumUtils {
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public static boolean checkStratum(Location location, StratumInfo si) throws AbsentInformationException {
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// Check stratum information
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try {
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Env.traceVerbose(String.format("Stratum [%s]: required=[%s:%d]", si.stratum, si.stratumSourceName, si.stratumSourceLine));
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Env.traceVerbose(String.format("Default stratum: location=[%s:%d]", location.sourceName(), location.lineNumber()));
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String stratumSourceName = location.sourceName(si.stratum);
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int stratumSourceLine = location.lineNumber(si.stratum);
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String stratumInfo = String.format("actual=[%s:%d]", stratumSourceName, stratumSourceLine);
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if (stratumSourceName.equals(si.stratumSourceName) && stratumSourceLine == si.stratumSourceLine) {
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Env.traceVerbose("Stratum matches: " + stratumInfo);
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return true;
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} else {
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Env.complain("Stratum mismatch: " + stratumInfo);
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return false;
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}
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} catch (AbsentInformationException e) {
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Env.complain(e, "Strata information is absent. Available strata: " + getStrataStr(location.declaringType()));
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return false;
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}
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}
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public static StratumInfo parseStratumInfo(String stratumInfo) throws Exception {
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int sourceNamePos = stratumInfo.indexOf('=');
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int sourceLinePos = stratumInfo.indexOf(':');
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if (sourceNamePos == -1 || sourceLinePos == -1 || sourceNamePos >= sourceLinePos) {
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throw new ArgumentParser.BadOption("Wrong syntax of stratum information: [" + stratumInfo + "]");
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}
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return new StratumInfo(
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stratumInfo.substring(0, sourceNamePos),
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stratumInfo.substring(sourceNamePos + 1, sourceLinePos),
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Integer.parseInt(stratumInfo.substring(sourceLinePos + 1)));
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}
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public static String getStrataStr(StackFrame sf) {
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ObjectReference thisObject = sf.thisObject();
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if (thisObject == null)
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return "(no strata)";
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return StratumUtils.getStrataStr(thisObject.referenceType());
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}
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public static String getStrataStr(ReferenceType ref) {
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return ref.availableStrata() + " (" + ref + ")";
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}
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}
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