本文整理汇总了Java中jdk.nashorn.internal.runtime.arrays.ArrayLikeIterator类的典型用法代码示例。如果您正苦于以下问题:Java ArrayLikeIterator类的具体用法?Java ArrayLikeIterator怎么用?Java ArrayLikeIterator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。
ArrayLikeIterator类属于jdk.nashorn.internal.runtime.arrays包,在下文中一共展示了ArrayLikeIterator类的9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: propertyIterator
import jdk.nashorn.internal.runtime.arrays.ArrayLikeIterator; //导入依赖的package包/类
@Override
public Iterator<String> propertyIterator() {
// Try __getIds__ first, if not found then try __getKeys__
// In jdk6, we had added "__getIds__" so this is just for compatibility.
Object func = adaptee.get(__getIds__);
if (!(func instanceof ScriptFunction)) {
func = adaptee.get(__getKeys__);
}
Object obj;
if (func instanceof ScriptFunction) {
obj = ScriptRuntime.apply((ScriptFunction)func, adaptee);
} else {
obj = new NativeArray(0);
}
final List<String> array = new ArrayList<>();
for (final Iterator<Object> iter = ArrayLikeIterator.arrayLikeIterator(obj); iter.hasNext(); ) {
array.add((String)iter.next());
}
return array.iterator();
}
示例2: map
import jdk.nashorn.internal.runtime.arrays.ArrayLikeIterator; //导入依赖的package包/类
/**
* ECMA 15.4.4.19 Array.prototype.map ( callbackfn [ , thisArg ] )
*
* @param self self reference
* @param callbackfn callback function per element
* @param thisArg this argument
* @return array with elements transformed by map function
*/
@Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1)
public static NativeArray map(final Object self, final Object callbackfn, final Object thisArg) {
return new IteratorAction<NativeArray>(Global.toObject(self), callbackfn, thisArg, null) {
private final MethodHandle mapInvoker = getMAP_CALLBACK_INVOKER();
@Override
protected boolean forEach(final Object val, final long i) throws Throwable {
final Object r = mapInvoker.invokeExact(callbackfn, thisArg, val, i, self);
result.defineOwnProperty(ArrayIndex.getArrayIndex(index), r);
return true;
}
@Override
public void applyLoopBegin(final ArrayLikeIterator<Object> iter0) {
// map return array should be of same length as source array
// even if callback reduces source array length
result = new NativeArray(iter0.getLength());
}
}.apply();
}
示例3: propertyIterator
import jdk.nashorn.internal.runtime.arrays.ArrayLikeIterator; //导入依赖的package包/类
@Override
public Iterator<String> propertyIterator() {
// Try __getIds__ first, if not found then try __getKeys__
// In jdk6, we had added "__getIds__" so this is just for compatibility.
Object func = adaptee.get(__getIds__);
if (!(func instanceof ScriptFunction)) {
func = adaptee.get(__getKeys__);
}
Object obj;
if (func instanceof ScriptFunction) {
obj = ScriptRuntime.apply((ScriptFunction)func, this);
} else {
obj = new NativeArray(0);
}
final List<String> array = new ArrayList<>();
for (final Iterator<Object> iter = ArrayLikeIterator.arrayLikeIterator(obj); iter.hasNext(); ) {
array.add((String)iter.next());
}
return array.iterator();
}
示例4: map
import jdk.nashorn.internal.runtime.arrays.ArrayLikeIterator; //导入依赖的package包/类
/**
* ECMA 15.4.4.19 Array.prototype.map ( callbackfn [ , thisArg ] )
*
* @param self self reference
* @param callbackfn callback function per element
* @param thisArg this argument
* @return array with elements transformed by map function
*/
@Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1)
public static NativeArray map(final Object self, final Object callbackfn, final Object thisArg) {
return new IteratorAction<NativeArray>(Global.toObject(self), callbackfn, thisArg, null) {
private final MethodHandle mapInvoker = getMAP_CALLBACK_INVOKER();
@Override
protected boolean forEach(final Object val, final double i) throws Throwable {
final Object r = mapInvoker.invokeExact(callbackfn, thisArg, val, i, self);
result.defineOwnProperty(ArrayIndex.getArrayIndex(index), r);
return true;
}
@Override
public void applyLoopBegin(final ArrayLikeIterator<Object> iter0) {
// map return array should be of same length as source array
// even if callback reduces source array length
result = new NativeArray(iter0.getLength());
}
}.apply();
}
示例5: map
import jdk.nashorn.internal.runtime.arrays.ArrayLikeIterator; //导入依赖的package包/类
/**
* ECMA 15.4.4.19 Array.prototype.map ( callbackfn [ , thisArg ] )
*
* @param self self reference
* @param callbackfn callback function per element
* @param thisArg this argument
* @return array with elements transformed by map function
*/
@Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1)
public static Object map(final Object self, final Object callbackfn, final Object thisArg) {
return new IteratorAction<NativeArray>(Global.toObject(self), callbackfn, thisArg, null) {
private final MethodHandle mapInvoker = getMAP_CALLBACK_INVOKER();
@Override
protected boolean forEach(final Object val, final long i) throws Throwable {
final Object r = mapInvoker.invokeExact(callbackfn, thisArg, val, i, self);
result.defineOwnProperty(ArrayIndex.getArrayIndex(index), r);
return true;
}
@Override
public void applyLoopBegin(final ArrayLikeIterator<Object> iter0) {
// map return array should be of same length as source array
// even if callback reduces source array length
result = new NativeArray(iter0.getLength());
}
}.apply();
}
示例6: reduceInner
import jdk.nashorn.internal.runtime.arrays.ArrayLikeIterator; //导入依赖的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7: reduceInner
import jdk.nashorn.internal.runtime.arrays.ArrayLikeIterator; //导入依赖的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();
}
示例8: toString
import jdk.nashorn.internal.runtime.arrays.ArrayLikeIterator; //导入依赖的package包/类
/**
* Converts {@code result} to a printable string. The reason we don't use {@link JSType#toString(Object)}
* or {@link ScriptRuntime#safeToString(Object)} is that we want to be able to render Symbol values
* even if they occur within an Array, and therefore have to implement our own Array to String
* conversion.
*
* @param result the result
* @param global the global object
* @return the string representation
*/
protected static String toString(final Object result, final Global global) {
if (result instanceof Symbol) {
// Normal implicit conversion of symbol to string would throw TypeError
return result.toString();
}
if (result instanceof NativeSymbol) {
return JSType.toPrimitive(result).toString();
}
if (isArrayWithDefaultToString(result, global)) {
// This should yield the same string as Array.prototype.toString but
// will not throw if the array contents include symbols.
final StringBuilder sb = new StringBuilder();
final Iterator<Object> iter = ArrayLikeIterator.arrayLikeIterator(result, true);
while (iter.hasNext()) {
final Object obj = iter.next();
if (obj != null && obj != ScriptRuntime.UNDEFINED) {
sb.append(toString(obj, global));
}
if (iter.hasNext()) {
sb.append(',');
}
}
return sb.toString();
}
return JSType.toString(result);
}
示例9: valueIterator
import jdk.nashorn.internal.runtime.arrays.ArrayLikeIterator; //导入依赖的package包/类
@Override
public Iterator<Object> valueIterator() {
final Object obj = callAdaptee(new NativeArray(0), __getValues__);
return ArrayLikeIterator.arrayLikeIterator(obj);
}