本文整理汇总了Java中org.apache.bcel.generic.IINC.getIndex方法的典型用法代码示例。如果您正苦于以下问题:Java IINC.getIndex方法的具体用法?Java IINC.getIndex怎么用?Java IINC.getIndex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org.apache.bcel.generic.IINC
的用法示例。
在下文中一共展示了IINC.getIndex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: visitIINC
import org.apache.bcel.generic.IINC; //导入方法依赖的package包/类
@Override
public void visitIINC(IINC obj) {
if (obj.getIncrement() == 0) {
// A no-op.
return;
}
// IINC is a special case because its input and output are not on the
// stack.
// However, we still want to use the value number cache to ensure that
// this operation is modeled consistently. (If we do nothing, we miss
// the fact that the referenced local is modified.)
int local = obj.getIndex();
ValueNumber[] input = new ValueNumber[] { getFrame().getValue(local) };
ValueNumberCache.Entry entry = new ValueNumberCache.Entry(handle, input);
ValueNumber[] output = cache.lookupOutputValues(entry);
if (output == null) {
output = new ValueNumber[] { factory.createFreshValue() };
cache.addOutputValues(entry, output);
}
getFrame().setValue(local, output[0]);
}
示例2: visitIINC
import org.apache.bcel.generic.IINC; //导入方法依赖的package包/类
@Override
public void visitIINC(IINC obj) {
// System.out.println("before iinc: " + getFrame());
int v = obj.getIndex();
int amount = obj.getIncrement();
ConstantFrame f = getFrame();
Constant c = f.getValue(v);
if (c.isConstantInteger())
f.setValue(v, new Constant(c.getConstantInt() + amount));
else
f.setValue(v, Constant.NOT_CONSTANT);
// System.out.println("after iinc: " + getFrame());
}
示例3: visitIINC
import org.apache.bcel.generic.IINC; //导入方法依赖的package包/类
/** Checks if the constraints of operands of the said instruction(s) are satisfied. */
public void visitIINC(IINC o){
int idx = o.getIndex();
if (idx < 0){
constraintViolated(o, "Index '"+idx+"' must be non-negative.");
}
else{
int maxminus1 = max_locals()-1;
if (idx > maxminus1){
constraintViolated(o, "Index '"+idx+"' must not be greater than max_locals-1 '"+maxminus1+"'.");
}
}
}