本文整理汇总了Java中jdk.nashorn.internal.runtime.arrays.ArrayLikeIterator.next方法的典型用法代码示例。如果您正苦于以下问题：Java ArrayLikeIterator.next方法的具体用法？Java ArrayLikeIterator.next怎么用？Java ArrayLikeIterator.next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jdk.nashorn.internal.runtime.arrays.ArrayLikeIterator的用法示例。
在下文中一共展示了ArrayLikeIterator.next方法的2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: reduceInner
import jdk.nashorn.internal.runtime.arrays.ArrayLikeIterator; //导入方法依赖的package包/类
private static Object reduceInner(final ArrayLikeIterator<Object> iter, final Object self, final Object... args) {
final Object callbackfn = args.length > 0 ? args[0] : ScriptRuntime.UNDEFINED;
final boolean initialValuePresent = args.length > 1;
Object initialValue = initialValuePresent ? args[1] : ScriptRuntime.UNDEFINED;
if (callbackfn == ScriptRuntime.UNDEFINED) {
throw typeError("not.a.function", "undefined");
}
if (!initialValuePresent) {
if (iter.hasNext()) {
initialValue = iter.next();
} else {
throw typeError("array.reduce.invalid.init");
}
}
//if initial value is ScriptRuntime.UNDEFINED - step forward once.
return new IteratorAction<Object>(Global.toObject(self), callbackfn, ScriptRuntime.UNDEFINED, initialValue, iter) {
private final MethodHandle reduceInvoker = getREDUCE_CALLBACK_INVOKER();
@Override
protected boolean forEach(final Object val, final long i) throws Throwable {
// TODO: why can't I declare the second arg as Undefined.class?
result = reduceInvoker.invokeExact(callbackfn, ScriptRuntime.UNDEFINED, result, val, i, self);
return true;
}
}.apply();
}
示例2: reduceInner
import jdk.nashorn.internal.runtime.arrays.ArrayLikeIterator; //导入方法依赖的package包/类
private static Object reduceInner(final ArrayLikeIterator<Object> iter, final Object self, final Object... args) {
final Object callbackfn = args.length > 0 ? args[0] : ScriptRuntime.UNDEFINED;
final boolean initialValuePresent = args.length > 1;
Object initialValue = initialValuePresent ? args[1] : ScriptRuntime.UNDEFINED;
if (callbackfn == ScriptRuntime.UNDEFINED) {
throw typeError("not.a.function", "undefined");
}
if (!initialValuePresent) {
if (iter.hasNext()) {
initialValue = iter.next();
} else {
throw typeError("array.reduce.invalid.init");
}
}
//if initial value is ScriptRuntime.UNDEFINED - step forward once.
return new IteratorAction<Object>(Global.toObject(self), callbackfn, ScriptRuntime.UNDEFINED, initialValue, iter) {
private final MethodHandle reduceInvoker = getREDUCE_CALLBACK_INVOKER();
@Override
protected boolean forEach(final Object val, final double i) throws Throwable {
// TODO: why can't I declare the second arg as Undefined.class?
result = reduceInvoker.invokeExact(callbackfn, ScriptRuntime.UNDEFINED, result, val, i, self);
return true;
}
}.apply();
}