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small cleanups 

git-svn-id: https://wala.svn.sourceforge.net/svnroot/wala/trunk@2893 f5eafffb-2e1d-0410-98e4-8ec43c5233c4
This commit is contained in:
sjfink 2008-06-18 21:06:24 +00:00
parent fd26dd0327
commit 60bff330b9
1 changed files with 19 additions and 38 deletions
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57
com.ibm.wala.core/src/com/ibm/wala/ipa/callgraph/impl/ExplicitCallGraph.java
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@ -36,7 +36,6 @@ import com.ibm.wala.util.collections.HashSetFactory;
import com.ibm.wala.util.collections.IntMapIterator;
import com.ibm.wala.util.collections.SparseVector;
import com.ibm.wala.util.debug.Assertions;
import com.ibm.wala.util.debug.Trace;
import com.ibm.wala.util.functions.IntFunction;
import com.ibm.wala.util.graph.EdgeManager;
import com.ibm.wala.util.graph.NumberedEdgeManager;
@ -49,22 +48,18 @@ import com.ibm.wala.util.intset.MutableSharedBitVectorIntSet;
import com.ibm.wala.util.intset.SparseIntSet;
/**
* A call graph which explicitly holds the target for each call site in each
* node.
*
* A call graph which explicitly holds the target for each call site in each node.
*
* @author sfink
*/
public class ExplicitCallGraph extends BasicCallGraph implements BytecodeConstants {
private static final boolean DEBUG = false;
protected final IClassHierarchy cha;
protected final AnalysisOptions options;
private final AnalysisCache cache;
private final long maxNumberOfNodes;
/**
@ -90,16 +85,16 @@ public class ExplicitCallGraph extends BasicCallGraph implements BytecodeConstan
/**
* subclasses may wish to override!
* @throws CancelException
* @throws CancelException
*/
@Override
protected CGNode makeFakeRootNode() throws CancelException {
return findOrCreateNode(new FakeRootMethod(cha, options, cache), Everywhere.EVERYWHERE);
}
/**
* subclasses may wish to override!
* @throws CancelException
* @throws CancelException
*/
@Override
protected CGNode makeFakeWorldClinitNode() throws CancelException {
@ -107,27 +102,16 @@ public class ExplicitCallGraph extends BasicCallGraph implements BytecodeConstan
}
/**
* Method findOrCreateNode.
*
* @param method
* @return NodeImpl
*/
@Override
public CGNode findOrCreateNode(IMethod method, Context C) throws CancelException {
if (Assertions.verifyAssertions) {
if (method == null || C == null) {
Assertions._assert(method != null, "null method");
Assertions._assert(C != null, "null context for method " + method);
}
}
assert method != null : "null method";
assert C != null : "null context for method " + method;
Key k = new Key(method, C);
NodeImpl result = getNode(k);
if (result == null) {
if (maxNumberOfNodes == -1 || getNumberOfNodes() <= maxNumberOfNodes) {
result = makeNode(method, C);
if (DEBUG) {
Trace.println("Create node for " + method + "hash code " + method.hashCode());
}
registerNode(k, result);
} else {
throw CancelException.make("Too many nodes");
@ -139,10 +123,8 @@ public class ExplicitCallGraph extends BasicCallGraph implements BytecodeConstan
public class ExplicitNode extends NodeImpl {
/**
* A Mapping from call site program counter (int) -> Object, where Object is
* a CGNode if we've discovered exactly one target for the site, or an
* IntSet of node numbers if we've discovered more than one target for the
* site.
* A Mapping from call site program counter (int) -> Object, where Object is a CGNode if we've discovered exactly
* one target for the site, or an IntSet of node numbers if we've discovered more than one target for the site.
*/
protected final SparseVector<Object> targets = new SparseVector<Object>();
@ -161,7 +143,7 @@ public class ExplicitCallGraph extends BasicCallGraph implements BytecodeConstan
if (result == null) {
return Collections.emptySet();
} else if (result instanceof CGNode) {
Set<CGNode> s = Collections.singleton((CGNode)result);
Set<CGNode> s = Collections.singleton((CGNode) result);
return s;
} else {
IntSet s = (IntSet) result;
@ -197,7 +179,6 @@ public class ExplicitCallGraph extends BasicCallGraph implements BytecodeConstan
}
});
}
protected int getNumberOfTargets(CallSiteReference site) {
Object result = targets.get(site.getProgramCounter());
@ -306,7 +287,7 @@ public class ExplicitCallGraph extends BasicCallGraph implements BytecodeConstan
public IR getIR() {
return getCallGraph().getInterpreter(this).getIR(this);
}
public DefUse getDU() {
return getCallGraph().getInterpreter(this).getDU(this);
}
@ -350,8 +331,8 @@ public class ExplicitCallGraph extends BasicCallGraph implements BytecodeConstan
/**
* for each y, the {x | (x,y) is an edge)
*/
final IBinaryNaturalRelation predecessors = new BasicNaturalRelation(
new byte[] { BasicNaturalRelation.SIMPLE_SPACE_STINGY }, BasicNaturalRelation.SIMPLE);
final IBinaryNaturalRelation predecessors = new BasicNaturalRelation(new byte[] { BasicNaturalRelation.SIMPLE_SPACE_STINGY },
BasicNaturalRelation.SIMPLE);
public IntSet getSuccNodeNumbers(CGNode node) {
ExplicitNode n = (ExplicitNode) node;
@ -446,7 +427,7 @@ public class ExplicitCallGraph extends BasicCallGraph implements BytecodeConstan
throw new IllegalArgumentException("node not in callgraph " + node);
}
assert (node instanceof ExplicitNode);
ExplicitNode n = (ExplicitNode)node;
ExplicitNode n = (ExplicitNode) node;
return n.getNumberOfTargets(site);
}
@ -458,7 +439,7 @@ public class ExplicitCallGraph extends BasicCallGraph implements BytecodeConstan
throw new IllegalArgumentException("node not in callgraph " + target);
}
assert (src instanceof ExplicitNode);
ExplicitNode n = (ExplicitNode)src;
ExplicitNode n = (ExplicitNode) src;
return n.getPossibleSites(target);
}
@ -467,16 +448,16 @@ public class ExplicitCallGraph extends BasicCallGraph implements BytecodeConstan
throw new IllegalArgumentException("node not in callgraph " + node);
}
assert (node instanceof ExplicitNode);
ExplicitNode n = (ExplicitNode)node;
ExplicitNode n = (ExplicitNode) node;
return n.getPossibleTargets(site);
}
public IntSet getPossibleTargetNumbers(CGNode node, CallSiteReference site) {
if (!containsNode(node)) {
throw new IllegalArgumentException("node not in callgraph " + node);
}
assert (node instanceof ExplicitNode);
ExplicitNode n = (ExplicitNode)node;
ExplicitNode n = (ExplicitNode) node;
return n.getPossibleTargetNumbers(site);
}