本文整理汇总了Java中jdk.nashorn.internal.objects.NativeFunction类的典型用法代码示例。如果您正苦于以下问题：Java NativeFunction类的具体用法？Java NativeFunction怎么用？Java NativeFunction使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
NativeFunction类属于jdk.nashorn.internal.objects包，在下文中一共展示了NativeFunction类的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: spreadGuardArguments
import jdk.nashorn.internal.objects.NativeFunction; //导入依赖的package包/类
private static MethodHandle spreadGuardArguments(final MethodHandle guard, final MethodType descType) {
final MethodType guardType = guard.type();
final int guardParamCount = guardType.parameterCount();
final int descParamCount = descType.parameterCount();
final int spreadCount = guardParamCount - descParamCount + 1;
if (spreadCount <= 0) {
// Guard doesn't dip into the varargs
return guard;
}
final MethodHandle arrayConvertingGuard;
// If the last parameter type of the guard is an array, then it is already itself a guard for a vararg apply
// invocation. We must filter the last argument with toApplyArgs otherwise deeper levels of nesting will fail
// with ClassCastException of NativeArray to Object[].
if(guardType.parameterType(guardParamCount - 1).isArray()) {
arrayConvertingGuard = MH.filterArguments(guard, guardParamCount - 1, NativeFunction.TO_APPLY_ARGS);
} else {
arrayConvertingGuard = guard;
}
return ScriptObject.adaptHandleToVarArgCallSite(arrayConvertingGuard, descParamCount);
}
示例2: spreadGuardArguments
import jdk.nashorn.internal.objects.NativeFunction; //导入依赖的package包/类
private static MethodHandle spreadGuardArguments(final MethodHandle guard, final MethodType descType) {
final MethodType guardType = guard.type();
final int guardParamCount = guardType.parameterCount();
final int descParamCount = descType.parameterCount();
final int spreadCount = guardParamCount - descParamCount + 1;
if (spreadCount <= 0) {
// Guard doesn't dip into the varargs
return guard;
}
final MethodHandle arrayConvertingGuard;
// If the last parameter type of the guard is an array, then it is already itself a guard for a vararg apply
// invocation. We must filter the last argument with toApplyArgs otherwise deeper levels of nesting will fail
// with ClassCastException of NativeArray to Object[].
if (guardType.parameterType(guardParamCount - 1).isArray()) {
arrayConvertingGuard = MH.filterArguments(guard, guardParamCount - 1, NativeFunction.TO_APPLY_ARGS);
} else {
arrayConvertingGuard = guard;
}
return ScriptObject.adaptHandleToVarArgCallSite(arrayConvertingGuard, descParamCount);
}