本文整理汇总了Java中edu.umd.cs.findbugs.ba.CFG.outgoingEdgeIterator方法的典型用法代码示例。如果您正苦于以下问题：Java CFG.outgoingEdgeIterator方法的具体用法？Java CFG.outgoingEdgeIterator怎么用？Java CFG.outgoingEdgeIterator使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类edu.umd.cs.findbugs.ba.CFG的用法示例。
在下文中一共展示了CFG.outgoingEdgeIterator方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: findThenFinish
import edu.umd.cs.findbugs.ba.CFG; //导入方法依赖的package包/类
private InstructionHandle findThenFinish(CFG cfg, BasicBlock thenBB, int elsePos) {
InstructionHandle inst = thenBB.getFirstInstruction();
while (inst == null) {
Iterator<Edge> ie = cfg.outgoingEdgeIterator(thenBB);
while (ie.hasNext()) {
Edge e = ie.next();
if (e.getType() == EdgeTypes.FALL_THROUGH_EDGE) {
thenBB = e.getTarget();
break;
}
}
inst = thenBB.getFirstInstruction();
}
InstructionHandle lastIns = inst;
while (inst.getPosition() < elsePos) {
lastIns = inst;
inst = inst.getNext();
}
return lastIns;
}
示例2: getDeepFirstInstruction
import edu.umd.cs.findbugs.ba.CFG; //导入方法依赖的package包/类
/**
* Like bb.getFirstInstruction() except that if null is returned it will
* follow the FALL_THROUGH_EDGE (if any)
*/
private static InstructionHandle getDeepFirstInstruction(CFG cfg, BasicBlock bb) {
InstructionHandle ih = bb.getFirstInstruction();
if (ih != null)
return ih;
Iterator<Edge> iei = cfg.outgoingEdgeIterator(bb);
while (iei.hasNext()) {
Edge e = iei.next();
String edgeString = e.toString();
if (EdgeTypes.FALL_THROUGH_EDGE == e.getType())
return getDeepFirstInstruction(cfg, e.getTarget());
}
return null;
}
示例3: findIfElseDuplicates
import edu.umd.cs.findbugs.ba.CFG; //导入方法依赖的package包/类
private void findIfElseDuplicates(CFG cfg, Method method, BasicBlock bb) {
BasicBlock thenBB = null, elseBB = null;
Iterator<Edge> iei = cfg.outgoingEdgeIterator(bb);
while (iei.hasNext()) {
Edge e = iei.next();
if (e.getType() == EdgeTypes.IFCMP_EDGE) {
elseBB = e.getTarget();
} else if (e.getType() == EdgeTypes.FALL_THROUGH_EDGE) {
thenBB = e.getTarget();
}
}
if ((thenBB == null) || (elseBB == null))
return;
InstructionHandle thenStartHandle = getDeepFirstInstruction(cfg, thenBB);
InstructionHandle elseStartHandle = getDeepFirstInstruction(cfg, elseBB);
if ((thenStartHandle == null) || (elseStartHandle == null))
return;
int thenStartPos = thenStartHandle.getPosition();
int elseStartPos = elseStartHandle.getPosition();
InstructionHandle thenFinishIns = findThenFinish(cfg, thenBB, elseStartPos);
int thenFinishPos = thenFinishIns.getPosition();
if (!(thenFinishIns.getInstruction() instanceof GotoInstruction))
return;
InstructionHandle elseFinishHandle = ((GotoInstruction) thenFinishIns.getInstruction()).getTarget();
int elseFinishPos = elseFinishHandle.getPosition();
if (thenFinishPos >= elseStartPos)
return;
if ((thenFinishPos - thenStartPos) != (elseFinishPos - elseStartPos))
return;
if (thenFinishPos <= thenStartPos)
return;
byte[] thenBytes = getCodeBytes(method, thenStartPos, thenFinishPos);
byte[] elseBytes = getCodeBytes(method, elseStartPos, elseFinishPos);
if (!Arrays.equals(thenBytes, elseBytes))
return;
// adjust elseFinishPos to be inclusive (for source line attribution)
InstructionHandle elseLastIns = elseFinishHandle.getPrev();
if (elseLastIns != null)
elseFinishPos = elseLastIns.getPosition();
pendingBugs.add(new BugInstance(this, "DB_DUPLICATE_BRANCHES", NORMAL_PRIORITY)
.addClassAndMethod(classContext.getJavaClass(), method)
.addSourceLineRange(classContext, this, thenStartPos, thenFinishPos)
.addSourceLineRange(classContext, this, elseStartPos, elseFinishPos));
}