本文整理汇总了Java中jdk.nashorn.internal.runtime.arrays.ArrayIndex类的典型用法代码示例。如果您正苦于以下问题:Java ArrayIndex类的具体用法?Java ArrayIndex怎么用?Java ArrayIndex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。
ArrayIndex类属于jdk.nashorn.internal.runtime.arrays包,在下文中一共展示了ArrayIndex类的15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: map
import jdk.nashorn.internal.runtime.arrays.ArrayIndex; //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2: filter
import jdk.nashorn.internal.runtime.arrays.ArrayIndex; //导入依赖的package包/类
/**
* ECMA 15.4.4.20 Array.prototype.filter ( callbackfn [ , thisArg ] )
*
* @param self self reference
* @param callbackfn callback function per element
* @param thisArg this argument
* @return filtered array
*/
@Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1)
public static NativeArray filter(final Object self, final Object callbackfn, final Object thisArg) {
return new IteratorAction<NativeArray>(Global.toObject(self), callbackfn, thisArg, new NativeArray()) {
private long to = 0;
private final MethodHandle filterInvoker = getFILTER_CALLBACK_INVOKER();
@Override
protected boolean forEach(final Object val, final long i) throws Throwable {
if ((boolean)filterInvoker.invokeExact(callbackfn, thisArg, val, i, self)) {
result.defineOwnProperty(ArrayIndex.getArrayIndex(to++), val);
}
return true;
}
}.apply();
}
示例3: map
import jdk.nashorn.internal.runtime.arrays.ArrayIndex; //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4: filter
import jdk.nashorn.internal.runtime.arrays.ArrayIndex; //导入依赖的package包/类
/**
* ECMA 15.4.4.20 Array.prototype.filter ( callbackfn [ , thisArg ] )
*
* @param self self reference
* @param callbackfn callback function per element
* @param thisArg this argument
* @return filtered array
*/
@Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1)
public static NativeArray filter(final Object self, final Object callbackfn, final Object thisArg) {
return new IteratorAction<NativeArray>(Global.toObject(self), callbackfn, thisArg, new NativeArray()) {
private long to = 0;
private final MethodHandle filterInvoker = getFILTER_CALLBACK_INVOKER();
@Override
protected boolean forEach(final Object val, final double i) throws Throwable {
if ((boolean)filterInvoker.invokeExact(callbackfn, thisArg, val, i, self)) {
result.defineOwnProperty(ArrayIndex.getArrayIndex(to++), val);
}
return true;
}
}.apply();
}
示例5: populateRange
import jdk.nashorn.internal.runtime.arrays.ArrayIndex; //导入依赖的package包/类
@Override
public void populateRange(final MethodEmitter method, final Type objectType, final int objectSlot, final int start, final int end) {
method.load(objectType, objectSlot);
// Set values.
for (int i = start; i < end; i++) {
final MapTuple<T> tuple = tuples.get(i);
//we only load when we have both symbols and values (which can be == the symbol)
//if we didn't load, we need an array property
if (tuple.symbol != null && tuple.value != null) {
final int index = getArrayIndex(tuple.key);
method.dup();
if (!isValidArrayIndex(index)) {
putField(method, tuple.key, tuple.symbol.getFieldIndex(), tuple);
} else {
putSlot(method, ArrayIndex.toLongIndex(index), tuple);
}
//this is a nop of tuple.key isn't e.g. "apply" or another special name
method.invalidateSpecialName(tuple.key);
}
}
}
示例6: get
import jdk.nashorn.internal.runtime.arrays.ArrayIndex; //导入依赖的package包/类
@SuppressWarnings("unused")
private static Object get(final Object self, final Object key) {
final CharSequence cs = JSType.toCharSequence(self);
final Object primitiveKey = JSType.toPrimitive(key, String.class);
final int index = ArrayIndex.getArrayIndex(primitiveKey);
if (index >= 0 && index < cs.length()) {
return String.valueOf(cs.charAt(index));
}
return ((ScriptObject) Global.toObject(self)).get(primitiveKey);
}
示例7: getOwnPropertyDescriptor
import jdk.nashorn.internal.runtime.arrays.ArrayIndex; //导入依赖的package包/类
@Override
public Object getOwnPropertyDescriptor(final String key) {
final int index = ArrayIndex.getArrayIndex(key);
if (index >= 0 && index < value.length()) {
final Global global = Global.instance();
return global.newDataDescriptor(String.valueOf(value.charAt(index)), false, true, false);
}
return super.getOwnPropertyDescriptor(key);
}
示例8: defineOwnProperty
import jdk.nashorn.internal.runtime.arrays.ArrayIndex; //导入依赖的package包/类
/**
* ECMA 15.4.5.1 [[DefineOwnProperty]] ( P, Desc, Throw ) as specialized in
* ECMA 10.6 for Arguments object.
*/
@Override
public boolean defineOwnProperty(final String key, final Object propertyDesc, final boolean reject) {
final int index = ArrayIndex.getArrayIndex(key);
if (index >= 0) {
final boolean isMapped = isMapped(index);
final Object oldValue = isMapped ? getArray().getObject(index) : null;
if (!super.defineOwnProperty(key, propertyDesc, false)) {
if (reject) {
throw typeError("cant.redefine.property", key, ScriptRuntime.safeToString(this));
}
return false;
}
if (isMapped) {
// When mapped argument is redefined, if new descriptor is accessor property
// or data-non-writable property, we have to "unmap" (unlink).
final PropertyDescriptor desc = toPropertyDescriptor(Global.instance(), propertyDesc);
if (desc.type() == PropertyDescriptor.ACCESSOR) {
setDeleted(index, oldValue);
} else if (desc.has(PropertyDescriptor.WRITABLE) && !desc.isWritable()) {
// delete and set value from new descriptor if it has one, otherwise use old value
setDeleted(index, desc.has(PropertyDescriptor.VALUE) ? desc.getValue() : oldValue);
} else if (desc.has(PropertyDescriptor.VALUE)) {
setArray(getArray().set(index, desc.getValue(), false));
}
}
return true;
}
return super.defineOwnProperty(key, propertyDesc, reject);
}
示例9: slice
import jdk.nashorn.internal.runtime.arrays.ArrayIndex; //导入依赖的package包/类
/**
* ECMA 15.4.4.10 Array.prototype.slice ( start [ , end ] )
*
* @param self self reference
* @param start start of slice (inclusive)
* @param end end of slice (optional, exclusive)
* @return sliced array
*/
@Function(attributes = Attribute.NOT_ENUMERABLE)
public static Object slice(final Object self, final Object start, final Object end) {
final Object obj = Global.toObject(self);
if (!(obj instanceof ScriptObject)) {
return ScriptRuntime.UNDEFINED;
}
final ScriptObject sobj = (ScriptObject)obj;
final long len = JSType.toUint32(sobj.getLength());
final long relativeStart = JSType.toLong(start);
final long relativeEnd = end == ScriptRuntime.UNDEFINED ? len : JSType.toLong(end);
long k = relativeStart < 0 ? Math.max(len + relativeStart, 0) : Math.min(relativeStart, len);
final long finale = relativeEnd < 0 ? Math.max(len + relativeEnd, 0) : Math.min(relativeEnd, len);
if (k >= finale) {
return new NativeArray(0);
}
if (bulkable(sobj)) {
return new NativeArray(sobj.getArray().slice(k, finale));
}
// Construct array with proper length to have a deleted filter on undefined elements
final NativeArray copy = new NativeArray(finale - k);
for (long n = 0; k < finale; n++, k++) {
if (sobj.has(k)) {
copy.defineOwnProperty(ArrayIndex.getArrayIndex(n), sobj.get(k));
}
}
return copy;
}
示例10: setPropertyValue
import jdk.nashorn.internal.runtime.arrays.ArrayIndex; //导入依赖的package包/类
private static void setPropertyValue(final ScriptObject sobj, final String name, final Object value) {
final int index = ArrayIndex.getArrayIndex(name);
if (ArrayIndex.isValidArrayIndex(index)) {
// array index key
sobj.defineOwnProperty(index, value);
} else if (sobj.getMap().findProperty(name) != null) {
// pre-existing non-inherited property, call set
sobj.set(name, value, 0);
} else {
// add new property
sobj.addOwnProperty(name, Property.WRITABLE_ENUMERABLE_CONFIGURABLE, value);
}
}
示例11: doesNotHave
import jdk.nashorn.internal.runtime.arrays.ArrayIndex; //导入依赖的package包/类
private void doesNotHave(final int index, final int value, final int callSiteFlags) {
final long oldLength = getArray().length();
final long longIndex = ArrayIndex.toLongIndex(index);
if (!doesNotHaveCheckArrayKeys(longIndex, value, callSiteFlags) && !doesNotHaveEnsureLength(longIndex, oldLength, callSiteFlags)) {
final boolean strict = isStrictFlag(callSiteFlags);
setArray(getArray().set(index, value, strict));
doesNotHaveEnsureDelete(longIndex, oldLength, strict);
}
}
示例12: hasArrayProperty
import jdk.nashorn.internal.runtime.arrays.ArrayIndex; //导入依赖的package包/类
private boolean hasArrayProperty(final int index) {
boolean hasArrayKeys = false;
for (ScriptObject self = this; self != null; self = self.getProto()) {
if (self.getArray().has(index)) {
return true;
}
hasArrayKeys = hasArrayKeys || self.getMap().containsArrayKeys();
}
return hasArrayKeys && hasProperty(ArrayIndex.toKey(index), true);
}
示例13: addArrayElement
import jdk.nashorn.internal.runtime.arrays.ArrayIndex; //导入依赖的package包/类
private static ArrayData addArrayElement(final ArrayData arrayData, final int index, final Object value) {
final long oldLength = arrayData.length();
final long longIndex = ArrayIndex.toLongIndex(index);
ArrayData newArrayData = arrayData;
if (longIndex >= oldLength) {
newArrayData = newArrayData.ensure(longIndex);
if (longIndex > oldLength) {
newArrayData = newArrayData.delete(oldLength, longIndex - 1);
}
}
return newArrayData.set(index, value, false);
}
示例14: getOwnPropertyDescriptor
import jdk.nashorn.internal.runtime.arrays.ArrayIndex; //导入依赖的package包/类
@Override
public Object getOwnPropertyDescriptor(final Object key) {
final int index = ArrayIndex.getArrayIndex(key);
if (index >= 0 && index < value.length()) {
final Global global = Global.instance();
return global.newDataDescriptor(String.valueOf(value.charAt(index)), false, true, false);
}
return super.getOwnPropertyDescriptor(key);
}
示例15: defineOwnProperty
import jdk.nashorn.internal.runtime.arrays.ArrayIndex; //导入依赖的package包/类
/**
* ECMA 15.4.5.1 [[DefineOwnProperty]] ( P, Desc, Throw ) as specialized in
* ECMA 10.6 for Arguments object.
*/
@Override
public boolean defineOwnProperty(final Object key, final Object propertyDesc, final boolean reject) {
final int index = ArrayIndex.getArrayIndex(key);
if (index >= 0) {
final boolean isMapped = isMapped(index);
final Object oldValue = isMapped ? getArray().getObject(index) : null;
if (!super.defineOwnProperty(key, propertyDesc, false)) {
if (reject) {
throw typeError("cant.redefine.property", key.toString(), ScriptRuntime.safeToString(this));
}
return false;
}
if (isMapped) {
// When mapped argument is redefined, if new descriptor is accessor property
// or data-non-writable property, we have to "unmap" (unlink).
final PropertyDescriptor desc = toPropertyDescriptor(Global.instance(), propertyDesc);
if (desc.type() == PropertyDescriptor.ACCESSOR) {
setDeleted(index, oldValue);
} else if (desc.has(PropertyDescriptor.WRITABLE) && !desc.isWritable()) {
// delete and set value from new descriptor if it has one, otherwise use old value
setDeleted(index, desc.has(PropertyDescriptor.VALUE) ? desc.getValue() : oldValue);
} else if (desc.has(PropertyDescriptor.VALUE)) {
setArray(getArray().set(index, desc.getValue(), false));
}
}
return true;
}
return super.defineOwnProperty(key, propertyDesc, reject);
}