/**
* Returns a <code>ThrowableSet</code> representing the set of exceptions included in <code>
* include</code> minus the set of exceptions included in <code>exclude</code>. Creates a new
* <code>ThrowableSet</code> only if there was not already one whose contents correspond to
* <code>include</code> - <code>exclude</code>.
*
* @param include A set of {@link RefLikeType} objects representing exception types included in
* the result; may be <code>null</code> if there are no included types.
* @param exclude A set of {@link AnySubType} objects representing exception types excluded from
* the result; may be <code>null</code> if there are no excluded types.
* @return a <code>ThrowableSet</code> representing the set of exceptions corresponding to
* <code>include</code> - <code>exclude</code>.
*/
private ThrowableSet registerSetIfNew(Set include, Set exclude) {
if (INSTRUMENTING) {
registrationCalls++;
}
if (include == null) {
include = Collections.EMPTY_SET;
}
if (exclude == null) {
exclude = Collections.EMPTY_SET;
}
int size = include.size() + exclude.size();
Integer sizeKey = new Integer(size);
List sizeList = (List) sizeToSets.get(sizeKey);
if (sizeList == null) {
sizeList = new LinkedList();
sizeToSets.put(sizeKey, sizeList);
}
for (Iterator i = sizeList.iterator(); i.hasNext(); ) {
ThrowableSet set = (ThrowableSet) i.next();
if (set.exceptionsIncluded.equals(include) && set.exceptionsExcluded.equals(exclude)) {
return set;
}
}
if (INSTRUMENTING) {
registeredSets++;
}
ThrowableSet result = new ThrowableSet(include, exclude);
sizeList.add(result);
return result;
}
/**
* given a DelayabilityAnalysis and the computations of each unit, calculates the latest
* computation-point for each expression.<br>
* the <code>equivRhsMap</code> could be calculated on the fly, but it is <b>very</b> likely that
* it already exists (as similar maps are used for calculating Earliestness, Delayed,...<br>
* the shared set allows more efficient set-operations, when they the computation is merged with
* other analyses/computations.
*
* @param dg a ExceptionalUnitGraph
* @param delayed the delayability-analysis of the same graph.
* @param equivRhsMap all computations of the graph
* @param set the shared flowSet
*/
public LatestComputation(
UnitGraph unitGraph, DelayabilityAnalysis delayed, Map equivRhsMap, BoundedFlowSet set) {
unitToLatest = new HashMap<Unit, FlowSet>(unitGraph.size() + 1, 0.7f);
Iterator unitIt = unitGraph.iterator();
while (unitIt.hasNext()) {
/* create a new Earliest-list for each unit */
Unit currentUnit = (Unit) unitIt.next();
/* basically the latest-set is:
* (delayed) INTERSECT (comp UNION (UNION_successors ~Delayed)) =
* (delayed) MINUS ((INTERSECTION_successors Delayed) MINUS comp).
*/
FlowSet delaySet = (FlowSet) delayed.getFlowBefore(currentUnit);
/* Calculate (INTERSECTION_successors Delayed) */
FlowSet succCompSet = (FlowSet) set.topSet();
List succList = unitGraph.getSuccsOf(currentUnit);
Iterator succIt = succList.iterator();
while (succIt.hasNext()) {
Unit successor = (Unit) succIt.next();
succCompSet.intersection((FlowSet) delayed.getFlowBefore(successor), succCompSet);
}
/* remove the computation of this set: succCompSet is then:
* ((INTERSECTION_successors Delayed) MINUS comp) */
if (equivRhsMap.get(currentUnit) != null) succCompSet.remove(equivRhsMap.get(currentUnit));
/* make the difference: */
FlowSet latest = (FlowSet) delaySet.emptySet();
delaySet.difference(succCompSet, latest);
unitToLatest.put(currentUnit, latest);
}
}
/**
* Utility method used in the construction of {@link UnitGraph}s, to be called only after the
* unitToPreds and unitToSuccs maps have been built.
*
* <p><code>UnitGraph</code> provides an implementation of <code>buildHeadsAndTails()</code> which
* defines the graph's set of heads to include the first {@link Unit} in the graph's body,
* together with any other <tt>Unit</tt> which has no predecessors. It defines the graph's set of
* tails to include all <tt>Unit</tt>s with no successors. Subclasses of <code>UnitGraph</code>
* may override this method to change the criteria for classifying a node as a head or tail.
*/
protected void buildHeadsAndTails() {
List tailList = new ArrayList();
List headList = new ArrayList();
for (Iterator unitIt = unitChain.iterator(); unitIt.hasNext(); ) {
Unit s = (Unit) unitIt.next();
List succs = (List) unitToSuccs.get(s);
if (succs.size() == 0) {
tailList.add(s);
}
List preds = (List) unitToPreds.get(s);
if (preds.size() == 0) {
headList.add(s);
}
}
// Add the first Unit, even if it is the target of
// a branch.
Unit entryPoint = (Unit) unitChain.getFirst();
if (!headList.contains(entryPoint)) {
headList.add(entryPoint);
}
tails = Collections.unmodifiableList(tailList);
heads = Collections.unmodifiableList(headList);
}
private void addBoxToPatch(String aLabelName, UnitBox aUnitBox) {
List patchList = (List) mLabelToPatchList.get(aLabelName);
if (patchList == null) {
patchList = new ArrayList();
mLabelToPatchList.put(aLabelName, patchList);
}
patchList.add(aUnitBox);
}
protected void flowThrough(Object inValue, Object unit, Object outValue) {
FlowSet in = (FlowSet) inValue, out = (FlowSet) outValue;
// Perform kill
in.difference(unitToKillSet.get(unit), out);
// Perform generation
out.union(unitToGenerateSet.get(unit), out);
}
/**
* Traverse the statements in the given body, looking for aggregation possibilities; that is,
* given a def d and a use u, d has no other uses, u has no other defs, collapse d and u.
*
* <p>option: only-stack-locals; if this is true, only aggregate variables starting with $
*/
protected void internalTransform(Body b, String phaseName, Map<String, String> options) {
StmtBody body = (StmtBody) b;
boolean onlyStackVars = PhaseOptions.getBoolean(options, "only-stack-locals");
int aggregateCount = 1;
if (Options.v().time()) Timers.v().aggregationTimer.start();
boolean changed = false;
Map<ValueBox, Zone> boxToZone =
new HashMap<ValueBox, Zone>(body.getUnits().size() * 2 + 1, 0.7f);
// Determine the zone of every box
{
Zonation zonation = new Zonation(body);
for (Unit u : body.getUnits()) {
Zone zone = zonation.getZoneOf(u);
for (ValueBox box : u.getUseBoxes()) {
boxToZone.put(box, zone);
}
for (ValueBox box : u.getDefBoxes()) {
boxToZone.put(box, zone);
}
}
}
do {
if (Options.v().verbose())
G.v()
.out
.println(
"["
+ body.getMethod().getName()
+ "] Aggregating iteration "
+ aggregateCount
+ "...");
// body.printTo(new java.io.PrintWriter(G.v().out, true));
changed = internalAggregate(body, boxToZone, onlyStackVars);
aggregateCount++;
} while (changed);
if (Options.v().time()) Timers.v().aggregationTimer.end();
}
protected void buildMaps(PegGraph pg) {
exceHandlers.addAll(pg.getExceHandlers());
startToThread.putAll(pg.getStartToThread());
startToAllocNodes.putAll(pg.getStartToAllocNodes());
startToBeginNodes.putAll(pg.getStartToBeginNodes());
waitingNodes.putAll(pg.getWaitingNodes());
notifyAll.putAll(pg.getNotifyAll());
canNotBeCompacted.addAll(pg.getCanNotBeCompacted());
synch.addAll(pg.getSynch());
threadNameToStart.putAll(pg.getThreadNameToStart());
specialJoin.addAll(pg.getSpecialJoin());
joinStmtToThread.putAll(pg.getJoinStmtToThread());
threadAllocSites.addAll(pg.getThreadAllocSites());
allocNodeToThread.putAll(pg.getAllocNodeToThread());
}
public void outALocalImmediate(ALocalImmediate node) {
String local = (String) mProductions.removeLast();
Local l = (Local) mLocals.get(local);
if (l == null) throw new RuntimeException("did not find local: " + local);
mProductions.addLast(l);
}
public void outANonstaticInvokeExpr(ANonstaticInvokeExpr node) {
List args;
if (node.getArgList() != null) args = (List) mProductions.removeLast();
else args = new ArrayList();
SootMethodRef method = (SootMethodRef) mProductions.removeLast();
String local = (String) mProductions.removeLast();
Local l = (Local) mLocals.get(local);
if (l == null) throw new RuntimeException("did not find local: " + local);
Node invokeType = (Node) node.getNonstaticInvoke();
Expr invokeExpr;
if (invokeType instanceof ASpecialNonstaticInvoke) {
invokeExpr = Jimple.v().newSpecialInvokeExpr(l, method, args);
} else if (invokeType instanceof AVirtualNonstaticInvoke) {
invokeExpr = Jimple.v().newVirtualInvokeExpr(l, method, args);
} else {
if (debug)
if (!(invokeType instanceof AInterfaceNonstaticInvoke))
throw new RuntimeException("expected interface invoke.");
invokeExpr = Jimple.v().newInterfaceInvokeExpr(l, method, args);
}
mProductions.addLast(invokeExpr);
}
/**
* given a DelayabilityAnalysis and the computations of each unit, calculates the latest
* computation-point for each expression. the <code>equivRhsMap</code> could be calculated on the
* fly, but it is <b>very</b> likely that it already exists (as similar maps are used for
* calculating Earliestness, Delayed,...
*
* @param dg a ExceptionalUnitGraph
* @param delayed the delayability-analysis of the same graph.
* @param equivRhsMap all computations of the graph
*/
public LatestComputation(UnitGraph unitGraph, DelayabilityAnalysis delayed, Map equivRhsMap) {
this(
unitGraph,
delayed,
equivRhsMap,
new ArrayPackedSet(new CollectionFlowUniverse(equivRhsMap.values())));
}
/**
* Utility method for adding an edge to maps representing the CFG.
*
* @param unitToSuccs The {@link Map} from {@link Unit}s to {@link List}s of their successors.
* @param unitToPreds The {@link Map} from {@link Unit}s to {@link List}s of their successors.
* @param head The {@link Unit} from which the edge starts.
* @param tail The {@link Unit} to which the edge flows.
*/
protected void addEdge(Map unitToSuccs, Map unitToPreds, Unit head, Unit tail) {
List headsSuccs = (List) unitToSuccs.get(head);
if (headsSuccs == null) {
headsSuccs = new ArrayList(3); // We expect this list to
// remain short.
unitToSuccs.put(head, headsSuccs);
}
if (!headsSuccs.contains(tail)) {
headsSuccs.add(tail);
List tailsPreds = (List) unitToPreds.get(tail);
if (tailsPreds == null) {
tailsPreds = new ArrayList();
unitToPreds.put(tail, tailsPreds);
}
tailsPreds.add(head);
}
}
public void outAIdentityNoTypeStatement(AIdentityNoTypeStatement node) {
mProductions.removeLast(); // get rid of @caughtexception string presently on top of the stack
Value local =
(Value) mLocals.get(mProductions.removeLast()); // the local ref from it's identifier
Unit u = Jimple.v().newIdentityStmt(local, Jimple.v().newCaughtExceptionRef());
mProductions.addLast(u);
}
public void outAArrayRef(AArrayRef node) {
Value immediate = (Value) mProductions.removeLast();
String identifier = (String) mProductions.removeLast();
Local l = (Local) mLocals.get(identifier);
if (l == null) throw new RuntimeException("did not find local: " + identifier);
mProductions.addLast(Jimple.v().newArrayRef(l, immediate));
}
public void outALocalFieldRef(ALocalFieldRef node) {
SootFieldRef field = (SootFieldRef) mProductions.removeLast();
String local = (String) mProductions.removeLast();
Local l = (Local) mLocals.get(local);
if (l == null) throw new RuntimeException("did not find local: " + local);
mProductions.addLast(Jimple.v().newInstanceFieldRef(l, field));
}
protected void internalTransform(Body b, String phaseName, Map<String, String> options) {
initialize(options);
SootMethod meth = b.getMethod();
if ((methodsToPrint == null)
|| (meth.getDeclaringClass().getName() == methodsToPrint.get(meth.getName()))) {
Body body = ir.getBody((JimpleBody) b);
print_cfg(body);
}
}
/**
* Utility method for <tt>UnitGraph</tt> constructors. It computes the edges corresponding to
* unexceptional control flow.
*
* @param unitToSuccs A {@link Map} from {@link Unit}s to {@link List}s of {@link Unit}s. This is
* an ``out parameter''; callers must pass an empty {@link Map}.
* <tt>buildUnexceptionalEdges</tt> will add a mapping for every <tt>Unit</tt> in the body to
* a list of its unexceptional successors.
* @param unitToPreds A {@link Map} from {@link Unit}s to {@link List}s of {@link Unit}s. This is
* an ``out parameter''; callers must pass an empty {@link Map}.
* <tt>buildUnexceptionalEdges</tt> will add a mapping for every <tt>Unit</tt> in the body to
* a list of its unexceptional predecessors.
*/
protected void buildUnexceptionalEdges(Map unitToSuccs, Map unitToPreds) {
// Initialize the predecessor sets to empty
for (Iterator unitIt = unitChain.iterator(); unitIt.hasNext(); ) {
unitToPreds.put(unitIt.next(), new ArrayList());
}
Iterator unitIt = unitChain.iterator();
Unit currentUnit, nextUnit;
nextUnit = unitIt.hasNext() ? (Unit) unitIt.next() : null;
while (nextUnit != null) {
currentUnit = nextUnit;
nextUnit = unitIt.hasNext() ? (Unit) unitIt.next() : null;
List successors = new ArrayList();
if (currentUnit.fallsThrough()) {
// Add the next unit as the successor
if (nextUnit != null) {
successors.add(nextUnit);
((List) unitToPreds.get(nextUnit)).add(currentUnit);
}
}
if (currentUnit.branches()) {
for (Iterator targetIt = currentUnit.getUnitBoxes().iterator(); targetIt.hasNext(); ) {
Unit target = ((UnitBox) targetIt.next()).getUnit();
// Arbitrary bytecode can branch to the same
// target it falls through to, so we screen for duplicates:
if (!successors.contains(target)) {
successors.add(target);
((List) unitToPreds.get(target)).add(currentUnit);
}
}
}
// Store away successors
unitToSuccs.put(currentUnit, successors);
}
}
/**
* Utility method that replaces the values of a {@link Map}, which must be instances of {@link
* List}, with unmodifiable equivalents.
*
* @param map The map whose values are to be made unmodifiable.
*/
protected static void makeMappedListsUnmodifiable(Map map) {
for (Iterator it = map.entrySet().iterator(); it.hasNext(); ) {
Map.Entry entry = (Map.Entry) it.next();
List value = (List) entry.getValue();
if (value.size() == 0) {
entry.setValue(Collections.EMPTY_LIST);
} else {
entry.setValue(Collections.unmodifiableList(value));
}
}
}
public void computeMonitorObjs() {
Set maps = monitor.entrySet();
for (Iterator iter = maps.iterator(); iter.hasNext(); ) {
Map.Entry entry = (Map.Entry) iter.next();
FlowSet fs = (FlowSet) entry.getValue();
Iterator it = fs.iterator();
while (it.hasNext()) {
Object obj = it.next();
if (!monitorObjs.contains(obj)) monitorObjs.add(obj);
}
}
}
protected void testJoinStmtToThread() {
System.out.println("=====test JoinStmtToThread");
Set maps = threadNameToStart.entrySet();
for (Iterator iter = maps.iterator(); iter.hasNext(); ) {
Map.Entry entry = (Map.Entry) iter.next();
Object key = entry.getKey();
System.out.println("---key= " + key);
System.out.println("value: " + entry.getValue());
}
System.out.println("=========JoinStmtToThread--ends--------");
}
public void outADeclaration(ADeclaration node) {
List localNameList = (List) mProductions.removeLast();
Type type = (Type) mProductions.removeLast();
Iterator it = localNameList.iterator();
List localList = new ArrayList();
while (it.hasNext()) {
Local l = Jimple.v().newLocal((String) it.next(), type);
mLocals.put(l.getName(), l);
localList.add(l);
}
mProductions.addLast(localList);
}
protected void testThreadNameToStart() {
System.out.println("=====test ThreadNameToStart");
Set maps = threadNameToStart.entrySet();
for (Iterator iter = maps.iterator(); iter.hasNext(); ) {
Map.Entry entry = (Map.Entry) iter.next();
Object key = entry.getKey();
System.out.println("---key= " + key);
JPegStmt stmt = (JPegStmt) entry.getValue();
Tag tag1 = (Tag) stmt.getTags().get(0);
System.out.println("value: " + tag1 + " " + stmt);
}
System.out.println("=========ThreadNameToStart--ends--------");
}
/**
* Report the counts collected by instrumentation (for now, at least, there is no need to
* provide access to the individual values as numbers).
*
* @return a string listing the counts.
*/
public String reportInstrumentation() {
int setCount = 0;
for (Iterator it = sizeToSets.values().iterator(); it.hasNext(); ) {
List sizeList = (List) it.next();
setCount += sizeList.size();
}
if (setCount != registeredSets) {
throw new IllegalStateException(
"ThrowableSet.reportInstrumentation() assertion failure: registeredSets != list count");
}
StringBuffer buf =
new StringBuffer("registeredSets: ")
.append(setCount)
.append("\naddsOfRefType: ")
.append(addsOfRefType)
.append("\naddsOfAnySubType: ")
.append(addsOfAnySubType)
.append("\naddsOfSet: ")
.append(addsOfSet)
.append("\naddsInclusionFromMap: ")
.append(addsInclusionFromMap)
.append("\naddsInclusionFromMemo: ")
.append(addsInclusionFromMemo)
.append("\naddsInclusionFromSearch: ")
.append(addsInclusionFromSearch)
.append("\naddsInclusionInterrupted: ")
.append(addsInclusionInterrupted)
.append("\naddsExclusionWithoutSearch: ")
.append(addsExclusionWithoutSearch)
.append("\naddsExclusionWithSearch: ")
.append(addsExclusionWithSearch)
.append("\nremovesOfAnySubType: ")
.append(removesOfAnySubType)
.append("\nremovesFromMap: ")
.append(removesFromMap)
.append("\nremovesFromMemo: ")
.append(removesFromMemo)
.append("\nremovesFromSearch: ")
.append(removesFromSearch)
.append("\nregistrationCalls: ")
.append(registrationCalls)
.append("\ncatchableAsQueries: ")
.append(catchableAsQueries)
.append("\ncatchableAsFromMap: ")
.append(catchableAsFromMap)
.append("\ncatchableAsFromSearch: ")
.append(catchableAsFromSearch)
.append('\n');
return buf.toString();
}
/**
* Computes the analysis given a UnitGraph computed from a method body. It is recommended that a
* ExceptionalUnitGraph (or similar) be provided for correct results in the case of exceptional
* control flow.
*
* @param g a graph on which to compute the analysis.
* @see ExceptionalUnitGraph
*/
public SimpleLiveLocals(UnitGraph graph) {
if (Options.v().time()) Timers.v().liveTimer.start();
if (Options.v().verbose())
G.v()
.out
.println(
"["
+ graph.getBody().getMethod().getName()
+ "] Constructing SimpleLiveLocals...");
SimpleLiveLocalsAnalysis analysis = new SimpleLiveLocalsAnalysis(graph);
if (Options.v().time()) Timers.v().livePostTimer.start();
// Build unitToLocals map
{
unitToLocalsAfter = new HashMap<Unit, List>(graph.size() * 2 + 1, 0.7f);
unitToLocalsBefore = new HashMap<Unit, List>(graph.size() * 2 + 1, 0.7f);
Iterator unitIt = graph.iterator();
while (unitIt.hasNext()) {
Unit s = (Unit) unitIt.next();
FlowSet set = (FlowSet) analysis.getFlowBefore(s);
unitToLocalsBefore.put(s, Collections.unmodifiableList(set.toList()));
set = (FlowSet) analysis.getFlowAfter(s);
unitToLocalsAfter.put(s, Collections.unmodifiableList(set.toList()));
}
}
if (Options.v().time()) Timers.v().livePostTimer.end();
if (Options.v().time()) Timers.v().liveTimer.end();
}
public void testMonitor() {
System.out.println("=====test monitor size: " + monitor.size());
Set maps = monitor.entrySet();
for (Iterator iter = maps.iterator(); iter.hasNext(); ) {
Map.Entry entry = (Map.Entry) iter.next();
String key = (String) entry.getKey();
System.out.println("---key= " + key);
FlowSet list = (FlowSet) entry.getValue();
if (list.size() > 0) {
System.out.println("**set: " + list.size());
Iterator it = list.iterator();
while (it.hasNext()) {
Object obj = it.next();
if (obj instanceof JPegStmt) {
JPegStmt stmt = (JPegStmt) obj;
Tag tag1 = (Tag) stmt.getTags().get(0);
System.out.println(tag1 + " " + stmt);
} else {
System.out.println("---list---");
Iterator listIt = ((List) obj).iterator();
while (listIt.hasNext()) {
Object oo = listIt.next();
if (oo instanceof JPegStmt) {
JPegStmt unit = (JPegStmt) oo;
Tag tag = (Tag) unit.getTags().get(0);
System.out.println(tag + " " + unit);
} else System.out.println(oo);
}
System.out.println("---list--end-");
}
}
}
}
System.out.println("=========monitor--ends--------");
}
public void outAIdentityStatement(AIdentityStatement node) {
Type identityRefType = (Type) mProductions.removeLast();
String atClause = (String) mProductions.removeLast();
Value local =
(Value) mLocals.get(mProductions.removeLast()); // the local ref from it's identifier
Value ref = null;
if (atClause.startsWith("@this")) {
ref = Jimple.v().newThisRef((RefType) identityRefType);
} else if (atClause.startsWith("@parameter")) {
int index = Integer.parseInt(atClause.substring(10, atClause.length() - 1));
ref = Jimple.v().newParameterRef(identityRefType, index);
} else
throw new RuntimeException(
"shouldn't @caughtexception be handled by outAIdentityNoTypeStatement: got" + atClause);
Unit u = Jimple.v().newIdentityStmt(local, ref);
mProductions.addLast(u);
}
/**
* Utility method that produces a new map from the {@link Unit}s of this graph's body to the union
* of the values stored in the two argument {@link Map}s, used to combine the maps of exceptional
* and unexceptional predecessors and successors into maps of all predecessors and successors. The
* values stored in both argument maps must be {@link List}s of {@link Unit}s, which are assumed
* not to contain any duplicate <tt>Unit</tt>s.
*
* @param mapA The first map to be combined.
* @param mapB The second map to be combined.
*/
protected Map combineMapValues(Map mapA, Map mapB) {
// The duplicate screen
Map result = new HashMap(mapA.size() * 2 + 1, 0.7f);
for (Iterator chainIt = unitChain.iterator(); chainIt.hasNext(); ) {
Unit unit = (Unit) chainIt.next();
List listA = (List) mapA.get(unit);
if (listA == null) {
listA = Collections.EMPTY_LIST;
}
List listB = (List) mapB.get(unit);
if (listB == null) {
listB = Collections.EMPTY_LIST;
}
int resultSize = listA.size() + listB.size();
if (resultSize == 0) {
result.put(unit, Collections.EMPTY_LIST);
} else {
List resultList = new ArrayList(resultSize);
Iterator listIt = null;
// As a minor optimization of the duplicate screening,
// copy the longer list first.
if (listA.size() >= listB.size()) {
resultList.addAll(listA);
listIt = listB.iterator();
} else {
resultList.addAll(listB);
listIt = listA.iterator();
}
while (listIt.hasNext()) {
Object element = listIt.next();
// It is possible for there to be both an exceptional
// and an unexceptional edge connecting two Units
// (though probably not in a class generated by
// javac), so we need to screen for duplicates. On the
// other hand, we expect most of these lists to have
// only one or two elements, so it doesn't seem worth
// the cost to build a Set to do the screening.
if (!resultList.contains(element)) {
resultList.add(element);
}
}
result.put(unit, Collections.unmodifiableList(resultList));
}
}
return result;
}
/**
* Returns a <code>ThrowableSet</code> which contains all the exceptions in <code>s</code> in
* addition to those in this <code>ThrowableSet</code>.
*
* @param s set of exceptions to add to this set.
* @return the union of this set with <code>s</code>
* @throws ThrowableSet.AlreadyHasExclusionsException if this <code>ThrowableSet</code> or <code>s
* </code> is the result of a {@link #whichCatchableAs(RefType)} operation, so that it is not
* possible to represent the addition of <code>s</code> to this <code>ThrowableSet</code>.
*/
public ThrowableSet add(ThrowableSet s) throws ThrowableSet.AlreadyHasExclusionsException {
if (INSTRUMENTING) {
Manager.v().addsOfSet++;
}
if (exceptionsExcluded.size() > 0 || s.exceptionsExcluded.size() > 0) {
throw new AlreadyHasExclusionsException(
"ThrowableSet.Add(ThrowableSet): attempt to add to ["
+ this.toString()
+ "] after removals recorded.");
}
ThrowableSet result = getMemoizedAdds(s);
if (result == null) {
if (INSTRUMENTING) {
Manager.v().addsInclusionFromSearch++;
Manager.v().addsExclusionWithoutSearch++;
}
result = this.add(s.exceptionsIncluded);
memoizedAdds.put(s, result);
} else if (INSTRUMENTING) {
Manager.v().addsInclusionFromMemo++;
Manager.v().addsExclusionWithoutSearch++;
}
return result;
}
public List getSuccsOf(Object u) {
if (!unitToSuccs.containsKey(u)) throw new RuntimeException("Invalid unit " + u);
return (List) unitToSuccs.get(u);
}
/**
* Returns a <code>ThrowableSet</code> which contains <code>e</code> and all of its subclasses as
* well as the exceptions in this set.
*
* <p><code>e</code> should be an instance of {@link AnySubType} if you know that the compile-time
* type of the exception you are representing is <code>e</code>, but the exception may be
* instantiated at run-time by a subclass of <code>e</code>.
*
* <p>For example, if you were recording the type of the exception thrown by
*
* <pre>
* catch (IOException e) {
* throw e;
* }
* </pre>
*
* you would call
*
* <pre>
* <code>add(AnySubtype.v(Scene.v().getRefType("java.lang.Exception.IOException")))</code>
* </pre>
*
* since the handler might rethrow any subclass of <code>IOException</code>.
*
* @param e represents a subtree of the exception class hierarchy to add to this set.
* @return a set containing <code>e</code> and all its subclasses, as well as the exceptions
* represented by this set.
* @throws ThrowableSet.AlreadyHasExclusionsException if this <code>ThrowableSet</code> is the
* result of a {@link #whichCatchableAs(RefType)} operation and, thus, unable to represent the
* addition of <code>e</code>.
*/
public ThrowableSet add(AnySubType e) throws ThrowableSet.AlreadyHasExclusionsException {
if (INSTRUMENTING) {
Manager.v().addsOfAnySubType++;
}
ThrowableSet result = getMemoizedAdds(e);
if (result != null) {
if (INSTRUMENTING) {
Manager.v().addsInclusionFromMemo++;
Manager.v().addsExclusionWithoutSearch++;
}
return result;
} else {
FastHierarchy hierarchy = Scene.v().getOrMakeFastHierarchy();
RefType newBase = e.getBase();
if (INSTRUMENTING) {
if (exceptionsExcluded.size() != 0) {
Manager.v().addsExclusionWithSearch++;
} else {
Manager.v().addsExclusionWithoutSearch++;
}
}
for (Iterator i = exceptionsExcluded.iterator(); i.hasNext(); ) {
RefType exclusionBase = ((AnySubType) i.next()).getBase();
if (hierarchy.canStoreType(newBase, exclusionBase)
|| hierarchy.canStoreType(exclusionBase, newBase)) {
if (INSTRUMENTING) {
// To ensure that the subcategories total properly:
Manager.v().addsInclusionInterrupted++;
}
throw new AlreadyHasExclusionsException(
"ThrowableSet.add("
+ e.toString()
+ ") to the set [ "
+ this.toString()
+ "] where "
+ exclusionBase.toString()
+ " is excluded.");
}
}
if (this.exceptionsIncluded.contains(e)) {
if (INSTRUMENTING) {
Manager.v().addsInclusionFromMap++;
}
return this;
} else {
if (INSTRUMENTING) {
Manager.v().addsInclusionFromSearch++;
}
int changes = 0;
boolean addNewException = true;
Set resultSet = new HashSet();
for (Iterator i = this.exceptionsIncluded.iterator(); i.hasNext(); ) {
RefLikeType incumbent = (RefLikeType) i.next();
if (incumbent instanceof RefType) {
if (hierarchy.canStoreType(incumbent, newBase)) {
// Omit incumbent from result.
changes++;
} else {
resultSet.add(incumbent);
}
} else if (incumbent instanceof AnySubType) {
RefType incumbentBase = ((AnySubType) incumbent).getBase();
// We have to use the base types in these hierarchy calls
// because we want to know if _all_ possible
// types represented by e can be represented by
// the incumbent, or vice versa.
if (hierarchy.canStoreType(newBase, incumbentBase)) {
addNewException = false;
resultSet.add(incumbent);
} else if (hierarchy.canStoreType(incumbentBase, newBase)) {
// Omit incumbent from result;
changes++;
} else {
resultSet.add(incumbent);
}
} else { // assertion failure.
throw new IllegalStateException(
"ThrowableSet.add(AnySubType): Set element "
+ incumbent.toString()
+ " is neither a RefType nor an AnySubType.");
}
}
if (addNewException) {
resultSet.add(e);
changes++;
}
if (changes > 0) {
result = Manager.v().registerSetIfNew(resultSet, this.exceptionsExcluded);
} else {
result = this;
}
memoizedAdds.put(e, result);
return result;
}
}
}
/**
* Returns a <code>ThrowableSet</code> which contains <code>e</code> in addition to the exceptions
* in this <code>ThrowableSet</code>.
*
* <p>Add <code>e</code> as a {@link RefType} when you know that the run-time class of the
* exception you are representing is necessarily <code>e</code> and cannot be a subclass of <code>
* e</code>.
*
* <p>For example, if you were recording the type of the exception thrown by
*
* <pre>
* throw new IOException("Permission denied");
* </pre>
*
* you would call
*
* <pre>
* <code>add(Scene.v().getRefType("java.lang.Exception.IOException"))</code>
* </pre>
*
* since the class of the exception is necessarily <code>IOException</code>.
*
* @param e the exception class
* @return a set containing <code>e</code> as well as the exceptions in this set.
* @throws {@link ThrowableSet.IllegalStateException} if this <code>ThrowableSet</code> is the
* result of a {@link #whichCatchableAs(RefType)} operation and, thus, unable to represent the
* addition of <code>e</code>.
*/
public ThrowableSet add(RefType e) throws ThrowableSet.AlreadyHasExclusionsException {
if (INSTRUMENTING) {
Manager.v().addsOfRefType++;
}
if (this.exceptionsIncluded.contains(e)) {
if (INSTRUMENTING) {
Manager.v().addsInclusionFromMap++;
Manager.v().addsExclusionWithoutSearch++;
}
return this;
} else {
ThrowableSet result = getMemoizedAdds(e);
if (result != null) {
if (INSTRUMENTING) {
Manager.v().addsInclusionFromMemo++;
Manager.v().addsExclusionWithoutSearch++;
}
return result;
} else {
if (INSTRUMENTING) {
Manager.v().addsInclusionFromSearch++;
if (exceptionsExcluded.size() != 0) {
Manager.v().addsExclusionWithSearch++;
} else {
Manager.v().addsExclusionWithoutSearch++;
}
}
FastHierarchy hierarchy = Scene.v().getOrMakeFastHierarchy();
for (Iterator i = exceptionsExcluded.iterator(); i.hasNext(); ) {
RefType exclusionBase = ((AnySubType) i.next()).getBase();
if (hierarchy.canStoreType(e, exclusionBase)) {
throw new AlreadyHasExclusionsException(
"ThrowableSet.add(RefType): adding"
+ e.toString()
+ " to the set [ "
+ this.toString()
+ "] where "
+ exclusionBase.toString()
+ " is excluded.");
}
}
for (Iterator i = exceptionsIncluded.iterator(); i.hasNext(); ) {
RefLikeType incumbent = (RefLikeType) i.next();
if (incumbent instanceof AnySubType) {
// Need to use incumbent.getBase() because
// hierarchy.canStoreType() assumes that parent
// is not an AnySubType.
RefType incumbentBase = ((AnySubType) incumbent).getBase();
if (hierarchy.canStoreType(e, incumbentBase)) {
memoizedAdds.put(e, this);
return this;
}
} else if (!(incumbent instanceof RefType)) {
// assertion failure.
throw new IllegalStateException(
"ThrowableSet.add(RefType): Set element "
+ incumbent.toString()
+ " is neither a RefType nor an AnySubType.");
}
}
Set resultSet = new HashSet(this.exceptionsIncluded);
resultSet.add(e);
result = Manager.v().registerSetIfNew(resultSet, this.exceptionsExcluded);
memoizedAdds.put(e, result);
return result;
}
}
}
