Java Code Examples for org.apache.bcel.Const#IOR
The following examples show how to use
org.apache.bcel.Const#IOR .
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Example 1
| Source File: IncompatMask.java From spotbugs with GNU Lesser General Public License v2.1 | 6 votes |
|
@Override
public void afterOpcode(int seen) {
super.afterOpcode(seen);
switch (seen) {
case Const.IAND:
case Const.LAND:
case Const.IOR:
case Const.LOR:
if (stack.getStackDepth() > 0) {
bitresultItem = stack.getStackItem(0);
}
break;
default:
break;
}
}
Example 2
| Source File: FindNullDerefsInvolvingNonShortCircuitEvaluation.java From spotbugs with GNU Lesser General Public License v2.1 | 5 votes |
|
@Override
public void sawOpcode(int seen) {
if (seen == Const.IAND || seen == Const.IOR) {
int nextOpcode = getCodeByte(getPC() + 1);
if (nextOpcode == Const.IFEQ || nextOpcode == Const.IFNE) {
OpcodeStack.Item left = stack.getStackItem(1);
OpcodeStack.Item right = stack.getStackItem(0);
checkForNullForcingABranch(seen, nextOpcode, left);
checkForNullForcingABranch(seen, nextOpcode, right);
}
}
}
Example 3
| Source File: FindNullDerefsInvolvingNonShortCircuitEvaluation.java From spotbugs with GNU Lesser General Public License v2.1 | 4 votes |
|
private boolean nullGuaranteesBranch(int seen, OpcodeStack.Item item) {
return item.getSpecialKind() == OpcodeStack.Item.ZERO_MEANS_NULL && seen == Const.IAND
|| item.getSpecialKind() == OpcodeStack.Item.NONZERO_MEANS_NULL && seen == Const.IOR;
}
Example 4
| Source File: Noise.java From spotbugs with GNU Lesser General Public License v2.1 | 4 votes |
|
@Override
public void sawOpcode(int seen) {
int priority;
switch (seen) {
case Const.INVOKEINTERFACE:
case Const.INVOKEVIRTUAL:
case Const.INVOKESPECIAL:
case Const.INVOKESTATIC:
hq.pushHash(getClassConstantOperand());
if (getNameConstantOperand().indexOf('$') == -1) {
hq.pushHash(getNameConstantOperand());
}
hq.pushHash(getSigConstantOperand());
priority = hq.getPriority();
if (priority <= Priorities.LOW_PRIORITY) {
accumulator.accumulateBug(new BugInstance(this, "NOISE_METHOD_CALL", priority).addClassAndMethod(this)
.addCalledMethod(this), this);
}
break;
case Const.GETFIELD:
case Const.PUTFIELD:
case Const.GETSTATIC:
case Const.PUTSTATIC:
hq.pushHash(getClassConstantOperand());
if (getNameConstantOperand().indexOf('$') == -1) {
hq.pushHash(getNameConstantOperand());
}
hq.pushHash(getSigConstantOperand());
priority = hq.getPriority();
if (priority <= Priorities.LOW_PRIORITY) {
accumulator.accumulateBug(new BugInstance(this, "NOISE_FIELD_REFERENCE", priority).addClassAndMethod(this)
.addReferencedField(this), this);
}
break;
case Const.CHECKCAST:
case Const.INSTANCEOF:
case Const.NEW:
hq.pushHash(getClassConstantOperand());
break;
case Const.IFEQ:
case Const.IFNE:
case Const.IFNONNULL:
case Const.IFNULL:
case Const.IF_ICMPEQ:
case Const.IF_ICMPNE:
case Const.IF_ICMPLE:
case Const.IF_ICMPGE:
case Const.IF_ICMPGT:
case Const.IF_ICMPLT:
case Const.IF_ACMPEQ:
case Const.IF_ACMPNE:
case Const.RETURN:
case Const.ARETURN:
case Const.IRETURN:
case Const.MONITORENTER:
case Const.MONITOREXIT:
case Const.IINC:
case Const.NEWARRAY:
case Const.TABLESWITCH:
case Const.LOOKUPSWITCH:
case Const.LCMP:
case Const.INEG:
case Const.IADD:
case Const.IMUL:
case Const.ISUB:
case Const.IDIV:
case Const.IREM:
case Const.IXOR:
case Const.ISHL:
case Const.ISHR:
case Const.IUSHR:
case Const.IAND:
case Const.IOR:
case Const.LAND:
case Const.LOR:
case Const.LADD:
case Const.LMUL:
case Const.LSUB:
case Const.LDIV:
case Const.LSHL:
case Const.LSHR:
case Const.LUSHR:
case Const.AALOAD:
case Const.AASTORE:
case Const.IALOAD:
case Const.IASTORE:
case Const.BALOAD:
case Const.BASTORE:
hq.push(seen);
priority = hq.getPriority();
if (priority <= Priorities.LOW_PRIORITY) {
accumulator.accumulateBug(
new BugInstance(this, "NOISE_OPERATION", priority).addClassAndMethod(this).addString(Const.getOpcodeName(seen)),
this);
}
break;
default:
break;
}
}
Example 5
| Source File: FindNonShortCircuit.java From spotbugs with GNU Lesser General Public License v2.1 | 4 votes |
|
private void scanForShortCircuit(int seen) {
switch (seen) {
case Const.IAND:
case Const.IOR:
// System.out.println("Saw IOR or IAND at distance " + distance);
OpcodeStack.Item item0 = stack.getStackItem(0);
OpcodeStack.Item item1 = stack.getStackItem(1);
if (item0.getConstant() == null && item1.getConstant() == null && distance < 4) {
// if (item0.getRegisterNumber() >= 0 && item1.getRegisterNumber() >= 0) {
// if (false) {
// clearAll();
// }
// }
operator = seen;
stage2 = 1;
} else {
stage2 = 0;
}
break;
case Const.IFEQ:
case Const.IFNE:
if (stage2 == 1) {
// System.out.println("Found nsc");
reportBug();
}
stage2 = 0;
break;
case Const.PUTFIELD:
case Const.PUTSTATIC:
case Const.IRETURN:
if (operator == Const.IAND && stage2 == 1) {
reportBug();
}
stage2 = 0;
break;
default:
stage2 = 0;
break;
}
}
Example 6
| Source File: FindNonShortCircuit.java From spotbugs with GNU Lesser General Public License v2.1 | 4 votes |
|
private void scanForBooleanValue(int seen) {
switch (seen) {
case Const.IAND:
case Const.IOR:
switch (prevOpcode) {
case Const.ILOAD:
case Const.ILOAD_0:
case Const.ILOAD_1:
case Const.ILOAD_2:
case Const.ILOAD_3:
clearAll();
break;
default:
break;
}
break;
case Const.ICONST_1:
stage1 = 1;
switch (prevOpcode) {
case Const.IFNONNULL:
case Const.IFNULL:
sawNullTest = true;
break;
case Const.IF_ICMPGT:
case Const.IF_ICMPGE:
case Const.IF_ICMPLT:
case Const.IF_ICMPLE:
sawNumericTest = true;
break;
}
break;
case Const.GOTO:
if (stage1 == 1) {
stage1 = 2;
} else {
stage1 = 0;
clearAll();
}
break;
case Const.ICONST_0:
if (stage1 == 2) {
sawBooleanValue();
}
stage1 = 0;
break;
case Const.INVOKEINTERFACE:
case Const.INVOKEVIRTUAL:
case Const.INVOKESPECIAL:
case Const.INVOKESTATIC:
String sig = getSigConstantOperand();
if (sig.endsWith(")Z")) {
sawBooleanValue();
}
stage1 = 0;
break;
default:
stage1 = 0;
}
}
Example 7
| Source File: ArithmeticInstruction.java From commons-bcel with Apache License 2.0 | 4 votes |
|
/** @return type associated with the instruction
*/
@Override
public Type getType( final ConstantPoolGen cp ) {
final short _opcode = super.getOpcode();
switch (_opcode) {
case Const.DADD:
case Const.DDIV:
case Const.DMUL:
case Const.DNEG:
case Const.DREM:
case Const.DSUB:
return Type.DOUBLE;
case Const.FADD:
case Const.FDIV:
case Const.FMUL:
case Const.FNEG:
case Const.FREM:
case Const.FSUB:
return Type.FLOAT;
case Const.IADD:
case Const.IAND:
case Const.IDIV:
case Const.IMUL:
case Const.INEG:
case Const.IOR:
case Const.IREM:
case Const.ISHL:
case Const.ISHR:
case Const.ISUB:
case Const.IUSHR:
case Const.IXOR:
return Type.INT;
case Const.LADD:
case Const.LAND:
case Const.LDIV:
case Const.LMUL:
case Const.LNEG:
case Const.LOR:
case Const.LREM:
case Const.LSHL:
case Const.LSHR:
case Const.LSUB:
case Const.LUSHR:
case Const.LXOR:
return Type.LONG;
default: // Never reached
throw new ClassGenException("Unknown type " + _opcode);
}
}
