Java EnumSet.clone方法代码示例

import java.util.EnumSet; //导入方法依赖的package包/类
/**
 * Runs the optimizer with a strategy to minimize the number of rop-form
 * registers used by the end result. Dex bytecode does not have instruction
 * forms that take register numbers larger than 15 for all instructions.
 * If we've produced a method that uses more than 16 registers, try again
 * with a different strategy to see if we can get under the bar. The end
 * result will be much more efficient.
 *
 * @param rmeth method to process
 * @param paramWidth the total width, in register-units, of this method's
 * parameters
 * @param isStatic true if this method has no 'this' pointer argument.
 * @param steps set of optional optimization steps to run
 * @return optimized method
 */
private static RopMethod optimizeMinimizeRegisters(RopMethod rmeth,
        int paramWidth, boolean isStatic,
        EnumSet<OptionalStep> steps) {
    SsaMethod ssaMeth;
    RopMethod resultMeth;

    ssaMeth = SsaConverter.convertToSsaMethod(
            rmeth, paramWidth, isStatic);

    EnumSet<OptionalStep> newSteps = steps.clone();

    /*
     * CONST_COLLECTOR trades insns for registers, which is not an
     * appropriate strategy here.
     */
    newSteps.remove(OptionalStep.CONST_COLLECTOR);

    runSsaFormSteps(ssaMeth, newSteps);

    resultMeth = SsaToRop.convertToRopMethod(ssaMeth, true);
    return resultMeth;
}
 

import java.util.EnumSet; //导入方法依赖的package包/类
public void testFlagsSizedOrderedParallelCollect() {
    EnumSet<StreamOpFlag> parKnown = EnumSet.of(StreamOpFlag.SIZED);
    EnumSet<StreamOpFlag> serKnown = parKnown.clone();

    List<IntermediateTestOp<Integer, Integer>> ops = new ArrayList<>();
    for (StreamOpFlag f : parKnown) {
        ops.add(CollectorOps.collector());
        ops.add(new ParSerTestFlagExpectedOp<>(f.clear(),
                                         parKnown,
                                         serKnown));
        serKnown.remove(f);
    }
    ops.add(CollectorOps.collector());
    ops.add(new ParSerTestFlagExpectedOp<>(0,
                                     parKnown,
                                     EnumSet.noneOf(StreamOpFlag.class)));

    TestData<Integer, Stream<Integer>> data = TestData.Factory.ofArray("Array", countTo(10).toArray(new Integer[0]));
    @SuppressWarnings("rawtypes")
    IntermediateTestOp[] opsArray = ops.toArray(new IntermediateTestOp[ops.size()]);

    withData(data).ops(opsArray).exercise();
}
 

import java.util.EnumSet; //导入方法依赖的package包/类
/**
 * Use this constructor when you want to specify which keys to add to the MDC.
 * You could still add custom keys via {@link #setProperty(IoSession, String, String)}
 * @param keys set of keys that should be added to the MDC
 *
 * @see #setProperty(org.apache.mina.core.session.IoSession, String, String)
 */
public MdcInjectionFilter(EnumSet<MdcKey> keys) {
    this.mdcKeys = keys.clone();
}