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Added Primitive Stream & Splititerator support

This commit is contained in:
Speiger 2021-04-27 17:02:57 +02:00
parent 413a294915
commit 17d8f6e055
12 changed files with 591 additions and 301 deletions
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3
src/builder/java/speiger/src/builder/GlobalVariables.java
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@ -161,7 +161,7 @@ public class GlobalVariables
addClassMapper("SETS", "Sets");
addClassMapper("COLLECTIONS", "Collections");
addClassMapper("ARRAYS", "Arrays");
addClassMapper("SPLIT_ITERATORS", "SplitIterators");
addClassMapper("SPLIT_ITERATORS", "Splititerators");
addClassMapper("ITERATORS", "Iterators");
addBiClassMapper("MAPS", "Maps", "2");
@ -169,6 +169,7 @@ public class GlobalVariables
addClassMapper("LIST_ITERATOR", "ListIterator");
addClassMapper("BI_ITERATOR", "BidirectionalIterator");
addBiClassMapper("BI_CONSUMER", "Consumer", "");
addClassMapper("SPLIT_ITERATOR", "Splititerator");
addClassMapper("ITERATOR", "Iterator");
addClassMapper("ITERABLE", "Iterable");
addClassMapper("COLLECTION", "Collection");

2
src/builder/java/speiger/src/builder/PrimitiveCollectionsBuilder.java
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@ -79,7 +79,7 @@ public class PrimitiveCollectionsBuilder extends TemplateProcessor
nameRemapper.put("EnumMap", "Enum2%sMap");
addBlockage(ClassType.OBJECT, "Consumer", "Comparator", "Stack");
addBlockage(ClassType.BOOLEAN, "ArraySet", "AVLTreeSet", "RBTreeSet", "SortedSet", "NavigableSet", "OpenHashSet", "OpenCustomHashSet", "LinkedOpenHashSet", "LinkedOpenCustomHashSet");
addBlockage(ClassType.BOOLEAN, "SplitIterators", "SortedMap", "NavigableMap", "OpenHashMap", "LinkedOpenHashMap", "OpenCustomHashMap", "LinkedOpenCustomHashMap", "ArrayMap", "RBTreeMap", "AVLTreeMap");
addBlockage(ClassType.BOOLEAN, "SortedMap", "NavigableMap", "OpenHashMap", "LinkedOpenHashMap", "OpenCustomHashMap", "LinkedOpenCustomHashMap", "ArrayMap", "RBTreeMap", "AVLTreeMap");
}
protected void create(ClassType mainType, ClassType subType)

23
src/builder/resources/speiger/assets/collections/templates/collections/Collection.template
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@ -6,16 +6,10 @@ import java.util.Objects;
import java.util.function.JAVA_PREDICATE;
import java.util.function.Predicate;
import java.util.stream.JAVA_STREAM;
#endif
#if !TYPE_BOOLEAN
#if !PRIMITIVES
import java.util.stream.Stream;
#endif
import java.util.stream.StreamSupport;
#endif
import speiger.src.collections.PACKAGE.utils.SPLIT_ITERATORS;
#endif
#if TYPE_BYTE || TYPE_SHORT || TYPE_CHAR || TYPE_FLOAT
import speiger.src.collections.utils.SanityChecks;
@ -187,21 +181,18 @@ public interface COLLECTION KEY_GENERIC_TYPE extends Collection<CLASS_TYPE>, ITE
@Override
public ITERATOR KEY_GENERIC_TYPE iterator();
#if !TYPE_BOOLEAN
#if !TYPE_OBJECT
#if PRIMITIVES
/**
* Returns a Java-Type-Specific Stream to reduce boxing/unboxing.
* @return a Stream of the closest java type
*/
default JAVA_STREAM primitiveStream() { return StreamSupport.NEW_STREAM(SPLIT_ITERATORS.createCollectionSplit(this, 0), false); }
default JAVA_STREAM primitiveStream() { return StreamSupport.NEW_STREAM(SPLIT_ITERATORS.createJavaSplititerator(this, 0), false); }
#else
#endif
/**
* Returns a Boxed Stream
* @return Stream of the type of collection
* A Type Specific Type Splititerator to reduce boxing/unboxing
* @return type specific splititerator
*/
@Override
default Stream<T> stream() { return StreamSupport.stream(ObjectSplitIterators.createCollectionSplit(this, 0), false); }
#endif
#endif
default SPLIT_ITERATOR KEY_GENERIC_TYPE spliterator() { return SPLIT_ITERATORS.createSplititerator(this, 0); }
}

11
src/builder/resources/speiger/assets/collections/templates/collections/Iterable.template
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@ -6,6 +6,8 @@ import java.util.function.Consumer;
import speiger.src.collections.PACKAGE.functions.CONSUMER;
#endif
import speiger.src.collections.PACKAGE.collections.SPLIT_ITERATOR;
import speiger.src.collections.PACKAGE.utils.SPLIT_ITERATORS;
/**
* A Type-Specific {@link Iterable} that reduces (un)boxing
@ -51,4 +53,11 @@ public interface ITERABLE KEY_GENERIC_TYPE extends Iterable<CLASS_TYPE>
iterator().forEachRemaining(action);
}
#endif
}
/**
* A Type Specific Type Splititerator to reduce boxing/unboxing
* @return type specific splititerator
*/
@Override
default SPLIT_ITERATOR KEY_GENERIC_TYPE spliterator() { return SPLIT_ITERATORS.createUnknownSplititerator(iterator(), 0); }
}

32
src/builder/resources/speiger/assets/collections/templates/collections/Splititerator.template Normal file
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@ -0,0 +1,32 @@
package speiger.src.collections.PACKAGE.collections;
#if !TYPE_OBJECT
import java.util.Spliterator.OfPrimitive;
#else
import java.util.Spliterator;
#endif
import java.util.function.Consumer;
#if !TYPE_OBJECT
import speiger.src.collections.PACKAGE.functions.CONSUMER;
#endif
/**
* A Type Specific Split-Iterator that reduces boxing/unboxing
* It fills the gaps of the java and uses this collection interfaces
* @Type(T)
*/
#if TYPE_OBJECT
public interface SPLIT_ITERATOR KEY_GENERIC_TYPE extends Spliterator KEY_GENERIC_TYPE, ITERATOR KEY_GENERIC_TYPE
#else
public interface SPLIT_ITERATOR KEY_GENERIC_TYPE extends OfPrimitive<CLASS_TYPE, CONSUMER KEY_GENERIC_TYPE, SPLIT_ITERATOR KEY_GENERIC_TYPE>, ITERATOR KEY_GENERIC_TYPE
#endif
{
#if !TYPE_OBJECT
@Override
default void forEachRemaining(CONSUMER KEY_GENERIC_TYPE action) { ITERATOR.super.forEachRemaining(action); }
#endif
@Override
@Primitive
default void forEachRemaining(Consumer<? super CLASS_TYPE> action) { ITERATOR.super.forEachRemaining(action); }
}

24
src/builder/resources/speiger/assets/collections/templates/lists/ArrayList.template
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@ -33,7 +33,13 @@ import speiger.src.collections.utils.Stack;
#else
import speiger.src.collections.objects.utils.ObjectArrays;
#endif
#if PRIMITIVES
import java.util.stream.JAVA_STREAM;
import java.util.stream.StreamSupport;
#endif
import speiger.src.collections.PACKAGE.utils.IARRAY;
import speiger.src.collections.PACKAGE.collections.SPLIT_ITERATOR;
import speiger.src.collections.PACKAGE.utils.SPLIT_ITERATORS;
import speiger.src.collections.utils.SanityChecks;
#if TYPE_OBJECT
@ -941,4 +947,22 @@ public class ARRAY_LIST KEY_GENERIC_TYPE extends ABSTRACT_LIST KEY_GENERIC_TYPE
if (index < 0 || index > size)
throw new IndexOutOfBoundsException("Index: " + index + ", Size: " + size);
}
#if PRIMITIVES
/**
* Returns a Java-Type-Specific Stream to reduce boxing/unboxing.
* @return a Stream of the closest java type
* @note characteristics are ordered, sized, subsized
*/
@Override
public JAVA_STREAM primitiveStream() { return StreamSupport.NEW_STREAM(SPLIT_ITERATORS.createArrayJavaSplititerator(data, size, 16464), false); }
#endif
/**
* A Type Specific Type Splititerator to reduce boxing/unboxing
* @return type specific splititerator
* @note characteristics are ordered, sized, subsized
*/
@Override
public SPLIT_ITERATOR KEY_GENERIC_TYPE spliterator() { return SPLIT_ITERATORS.createArraySplititerator(data, size, 16464); }
}

8
src/builder/resources/speiger/assets/collections/templates/lists/List.template
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@ -12,10 +12,12 @@ import java.util.function.UnaryOperator;
import java.util.Comparator;
import speiger.src.collections.PACKAGE.collections.COLLECTION;
import speiger.src.collections.PACKAGE.collections.SPLIT_ITERATOR;
#if !TYPE_OBJECT
import speiger.src.collections.PACKAGE.functions.COMPARATOR;
#endif
import speiger.src.collections.PACKAGE.utils.ARRAYS;
import speiger.src.collections.PACKAGE.utils.SPLIT_ITERATORS;
#if TYPE_BYTE || TYPE_SHORT || TYPE_CHAR || TYPE_FLOAT
import speiger.src.collections.utils.SanityChecks;
#endif
@ -437,4 +439,10 @@ public interface LIST KEY_GENERIC_TYPE extends COLLECTION KEY_GENERIC_TYPE, List
}
#endif
#endif
/**
* A Type Specific Type Splititerator to reduce boxing/unboxing
* @return type specific splititerator
*/
@Override
default SPLIT_ITERATOR KEY_GENERIC_TYPE spliterator() { return SPLIT_ITERATORS.createSplititerator(this, 0); }
}

10
src/builder/resources/speiger/assets/collections/templates/sets/NavigableSet.template
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@ -3,6 +3,8 @@ package speiger.src.collections.PACKAGE.sets;
import java.util.NavigableSet;
import speiger.src.collections.PACKAGE.collections.BI_ITERATOR;
import speiger.src.collections.PACKAGE.collections.SPLIT_ITERATOR;
import speiger.src.collections.PACKAGE.utils.SPLIT_ITERATORS;
/**
* A Type Specific Navigable Set interface with a couple helper methods
@ -114,6 +116,13 @@ public interface NAVIGABLE_SET KEY_GENERIC_TYPE extends NavigableSet<CLASS_TYPE>
@Override
public NAVIGABLE_SET KEY_GENERIC_TYPE descendingSet();
/**
* A Type Specific Type Splititerator to reduce boxing/unboxing
* @return type specific splititerator
*/
@Override
default SPLIT_ITERATOR KEY_GENERIC_TYPE spliterator() { return SPLIT_ITERATORS.createSplititerator(this, 0); }
#if !TYPE_OBJECT
@Override
@Deprecated
@ -158,5 +167,6 @@ public interface NAVIGABLE_SET KEY_GENERIC_TYPE extends NavigableSet<CLASS_TYPE>
@Override
@Deprecated
public default SORTED_SET KEY_GENERIC_TYPE tailSet(CLASS_TYPE fromElement) { return SORTED_SET.super.tailSet(fromElement); }
#endif
}

8
src/builder/resources/speiger/assets/collections/templates/sets/Set.template
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@ -4,6 +4,8 @@ import java.util.Set;
import speiger.src.collections.PACKAGE.collections.COLLECTION;
import speiger.src.collections.PACKAGE.collections.ITERATOR;
import speiger.src.collections.PACKAGE.collections.SPLIT_ITERATOR;
import speiger.src.collections.PACKAGE.utils.SPLIT_ITERATORS;
/**
* A Type Specific Set class to reduce boxing/unboxing
@ -45,4 +47,10 @@ public interface SET KEY_GENERIC_TYPE extends Set<CLASS_TYPE>, COLLECTION KEY_GE
return COLLECTION.super.remove(o);
}
#endif
/**
* A Type Specific Type Splititerator to reduce boxing/unboxing
* @return type specific splititerator
*/
@Override
default SPLIT_ITERATOR KEY_GENERIC_TYPE spliterator() { return SPLIT_ITERATORS.createSplititerator(this, 0); }
}

9
src/builder/resources/speiger/assets/collections/templates/sets/SortedSet.template
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@ -3,11 +3,13 @@ package speiger.src.collections.PACKAGE.sets;
import java.util.SortedSet;
import speiger.src.collections.PACKAGE.collections.BI_ITERATOR;
import speiger.src.collections.PACKAGE.collections.SPLIT_ITERATOR;
#if TYPE_OBJECT
import java.util.Comparator;
#else
import speiger.src.collections.PACKAGE.functions.COMPARATOR;
#endif
import speiger.src.collections.PACKAGE.utils.SPLIT_ITERATORS;
/**
* A Type Specific SortedSet implementation to reduce boxing/unboxing
@ -68,6 +70,13 @@ public interface SORTED_SET KEY_GENERIC_TYPE extends SET KEY_GENERIC_TYPE, Sorte
*/
public BI_ITERATOR KEY_GENERIC_TYPE iterator(KEY_TYPE fromElement);
/**
* A Type Specific Type Splititerator to reduce boxing/unboxing
* @return type specific splititerator
*/
@Override
default SPLIT_ITERATOR KEY_GENERIC_TYPE spliterator() { return SPLIT_ITERATORS.createSplititerator(this, 0); }
#if !TYPE_OBJECT
/**
* A Type Specific SubSet method to reduce boxing/unboxing

282
src/builder/resources/speiger/assets/collections/templates/utils/SplitIterators.template
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@ -1,282 +0,0 @@
package speiger.src.collections.PACKAGE.utils;
import java.util.Comparator;
import java.util.Spliterator;
#if PRIMITIVES
import java.util.Spliterator.JAVA_SPLIT_ITERATOR;
#else
import java.util.function.Consumer;
#endif
import speiger.src.collections.PACKAGE.collections.COLLECTION;
import speiger.src.collections.PACKAGE.collections.ITERATOR;
import speiger.src.collections.utils.SanityChecks;
/**
* Helper class that provides SplitIterators for normal and stream usage
*/
public class SPLIT_ITERATORS
{
/**
* Creates A stream compatible split iterator without copying the original array or boxing
* @param array that should be wrapped into a split iterator
* @param characteristics characteristics properties of this spliterator's source or elements.
* @Type(T)
* @return a split iterator of a Stream compatible type
*/
public static GENERIC_KEY_BRACES JAVA_SPLIT_ITERATOR KEY_GENERIC_TYPE createArraySplit(KEY_TYPE[] array, int characteristics) { return createArraySplit(array, 0, array.length, characteristics);}
/**
* Creates A stream compatible split iterator without copying the original array or boxing
* @param array that should be wrapped into a split iterator
* @param size the maximum index within the array
* @param characteristics characteristics properties of this spliterator's source or elements.
* @Type(T)
* @return a split iterator of a Stream compatible type
* @throws IllegalStateException if the size is outside of the array size
*/
public static GENERIC_KEY_BRACES JAVA_SPLIT_ITERATOR KEY_GENERIC_TYPE createArraySplit(KEY_TYPE[] array, int size, int characteristics) { return createArraySplit(array, 0, size, characteristics);}
/**
* Creates A stream compatible split iterator without copying the original array or boxing
* @param array that should be wrapped into a split iterator
* @param offset the starting index of the array
* @param size the maximum index within the array
* @param characteristics characteristics properties of this spliterator's source or elements.
* @Type(T)
* @return a split iterator of a Stream compatible type
* @throws IllegalStateException the offset and size are outside of the arrays range
*/
public static GENERIC_KEY_BRACES JAVA_SPLIT_ITERATOR KEY_GENERIC_TYPE createArraySplit(KEY_TYPE[] array, int offset, int size, int characteristics) {
SanityChecks.checkArrayCapacity(array.length, offset, size);
return new ArraySplitIteratorBRACES(array, offset, size, characteristics);
}
/**
* Creates a stream compatible split iterator without copying it or boxing it
* @param collection the collection that should be wrapped in a split iterator
* @param characteristics characteristics properties of this spliterator's source or elements.
* @Type(T)
* @return a split iterator of a Stream compatible type
*/
public static GENERIC_KEY_BRACES JAVA_SPLIT_ITERATOR KEY_GENERIC_TYPE createCollectionSplit(COLLECTION KEY_GENERIC_TYPE collection, int characteristics) {
return new IteratorSpliteratorBRACES(collection, characteristics);
}
/**
* Creates a stream compatible split iterator without copying it or boxing it
* @param iterator the Iterator that should be wrapped in a split iterator
* @param characteristics characteristics properties of this spliterator's source or elements.
* @Type(T)
* @return a split iterator of a Stream compatible type
*/
public static GENERIC_KEY_BRACES JAVA_SPLIT_ITERATOR KEY_GENERIC_TYPE createUnknownIterator(ITERATOR KEY_GENERIC_TYPE iterator, int characteristics) {
return new IteratorSpliteratorBRACES(iterator, characteristics);
}
/**
* Creates a stream compatible split iterator without copying it or boxing it
* @param iterator the collection that should be wrapped in a split iterator
* @param size the amount of elements in the iterator
* @param characteristics characteristics properties of this spliterator's source or elements.
* @Type(T)
* @return a split iterator of a Stream compatible type
*/
public static GENERIC_KEY_BRACES JAVA_SPLIT_ITERATOR KEY_GENERIC_TYPE createSizedIterator(ITERATOR KEY_GENERIC_TYPE iterator, long size, int characteristics) {
return new IteratorSpliteratorBRACES(iterator, size, characteristics);
}
static class IteratorSpliterator KEY_GENERIC_TYPE implements JAVA_SPLIT_ITERATOR KEY_GENERIC_TYPE {
static final int BATCH_UNIT = 1 << 10;
static final int MAX_BATCH = 1 << 25;
private final COLLECTION KEY_GENERIC_TYPE collection;
private ITERATOR KEY_GENERIC_TYPE it;
private final int characteristics;
private long est;
private int batch;
IteratorSpliterator(COLLECTION KEY_GENERIC_TYPE collection, int characteristics) {
this.collection = collection;
it = null;
this.characteristics = (characteristics & Spliterator.CONCURRENT) == 0
? characteristics | Spliterator.SIZED | Spliterator.SUBSIZED
: characteristics;
}
IteratorSpliterator(ITERATOR KEY_GENERIC_TYPE iterator, long size, int characteristics) {
collection = null;
it = iterator;
est = size;
this.characteristics = (characteristics & Spliterator.CONCURRENT) == 0
? characteristics | Spliterator.SIZED | Spliterator.SUBSIZED
: characteristics;
}
IteratorSpliterator(ITERATOR KEY_GENERIC_TYPE iterator, int characteristics) {
collection = null;
it = iterator;
est = Long.MAX_VALUE;
this.characteristics = characteristics & ~(Spliterator.SIZED | Spliterator.SUBSIZED);
}
private ITERATOR KEY_GENERIC_TYPE iterator()
{
if (it == null) {
it = collection.iterator();
est = collection.size();
}
return it;
}
@Override
public JAVA_SPLIT_ITERATOR KEY_GENERIC_TYPE trySplit() {
ITERATOR KEY_GENERIC_TYPE i = iterator();
if (est > 1 && i.hasNext()) {
int n = Math.min(batch + BATCH_UNIT, Math.min((int)est, MAX_BATCH));
KEY_TYPE[] a = NEW_KEY_ARRAY(n);
int j = 0;
do { a[j] = i.NEXT(); } while (++j < n && i.hasNext());
batch = j;
if (est != Long.MAX_VALUE)
est -= j;
return new ArraySplitIteratorBRACES(a, 0, j, characteristics);
}
return null;
}
#if TYPE_OBJECT
@Override
public void forEachRemaining(Consumer<? super T> action) {
if (action == null) throw new NullPointerException();
iterator().forEachRemaining(action);
}
@Override
public boolean tryAdvance(Consumer<? super T> action) {
if (action == null) throw new NullPointerException();
ITERATOR KEY_GENERIC_TYPE iter = iterator();
if (iter.hasNext()) {
action.accept(iter.NEXT());
return true;
}
return false;
}
#else
@Override
public void forEachRemaining(JAVA_CONSUMER action) {
if (action == null) throw new NullPointerException();
iterator().forEachRemaining(T -> action.accept(T));
}
@Override
public boolean tryAdvance(JAVA_CONSUMER action) {
if (action == null) throw new NullPointerException();
ITERATOR KEY_GENERIC_TYPE iter = iterator();
if (iter.hasNext()) {
action.accept(iter.NEXT());
return true;
}
return false;
}
#endif
@Override
public long estimateSize() {
iterator();
return est;
}
@Override
public int characteristics() { return characteristics; }
@Override
#if TYPE_OBJECT
public Comparator<? super T> getComparator() {
#else
public Comparator<? super JAVA_CLASS> getComparator() {
#endif
if (hasCharacteristics(4)) //Sorted
return null;
throw new IllegalStateException();
}
}
static final class ArraySplitIterator KEY_GENERIC_TYPE implements JAVA_SPLIT_ITERATOR KEY_GENERIC_TYPE {
private final KEY_TYPE[] array;
private int index;
private final int fence;
private final int characteristics;
public ArraySplitIterator(KEY_TYPE[] array, int origin, int fence, int additionalCharacteristics) {
this.array = array;
index = origin;
this.fence = fence;
characteristics = additionalCharacteristics | Spliterator.SIZED | Spliterator.SUBSIZED;
}
@Override
public JAVA_SPLIT_ITERATOR KEY_GENERIC_TYPE trySplit() {
int lo = index, mid = (lo + fence) >>> 1;
return (lo >= mid) ? null : new ArraySplitIteratorBRACES(array, lo, index = mid, characteristics);
}
#if TYPE_OBJECT
@Override
public void forEachRemaining(Consumer<? super T> action) {
if (action == null) throw new NullPointerException();
T[] a; int i, hi;
if ((a = array).length >= (hi = fence) && (i = index) >= 0 && i < (index = hi)) {
do { action.accept(a[i]); } while (++i < hi);
}
}
@Override
public boolean tryAdvance(Consumer<? super T> action) {
if (action == null) throw new NullPointerException();
if (index >= 0 && index < fence) {
action.accept(array[index++]);
return true;
}
return false;
}
#else
@Override
public void forEachRemaining(JAVA_CONSUMER action) {
if (action == null) throw new NullPointerException();
KEY_TYPE[] a; int i, hi;
if ((a = array).length >= (hi = fence) && (i = index) >= 0 && i < (index = hi)) {
do { action.accept(a[i]); } while (++i < hi);
}
}
@Override
public boolean tryAdvance(JAVA_CONSUMER action) {
if (action == null) throw new NullPointerException();
if (index >= 0 && index < fence) {
action.accept(array[index++]);
return true;
}
return false;
}
#endif
@Override
public long estimateSize() { return fence - index; }
@Override
public int characteristics() {
return characteristics;
}
@Override
#if TYPE_OBJECT
public Comparator<? super T> getComparator() {
#else
public Comparator<? super JAVA_CLASS> getComparator() {
#endif
if (hasCharacteristics(4)) //Sorted
return null;
throw new IllegalStateException();
}
}
}

480
src/builder/resources/speiger/assets/collections/templates/utils/Splititerators.template Normal file
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@ -0,0 +1,480 @@
package speiger.src.collections.PACKAGE.utils;
import java.util.Comparator;
import java.util.Spliterator;
#if PRIMITIVES
import java.util.Spliterator.JAVA_SPLIT_ITERATOR;
#endif
import java.util.function.Consumer;
import speiger.src.collections.PACKAGE.collections.COLLECTION;
import speiger.src.collections.PACKAGE.collections.ITERATOR;
import speiger.src.collections.PACKAGE.collections.SPLIT_ITERATOR;
#if !TYPE_OBJECT
import speiger.src.collections.PACKAGE.functions.CONSUMER;
#endif
import speiger.src.collections.utils.SanityChecks;
/**
* Helper class that provides SplitIterators for normal and stream usage
*/
public class SPLIT_ITERATORS
{
#if PRIMITIVES
/**
* Creates A stream compatible split iterator without copying the original array or boxing
* @param array that should be wrapped into a split iterator
* @param characteristics characteristics properties of this spliterator's source or elements.
* @Type(T)
* @return a split iterator of a Stream compatible type
*/
public static GENERIC_KEY_BRACES JAVA_SPLIT_ITERATOR KEY_GENERIC_TYPE createArrayJavaSplititerator(KEY_TYPE[] array, int characteristics) { return createArrayJavaSplititerator(array, 0, array.length, characteristics);}
/**
* Creates A stream compatible split iterator without copying the original array or boxing
* @param array that should be wrapped into a split iterator
* @param size the maximum index within the array
* @param characteristics characteristics properties of this spliterator's source or elements.
* @Type(T)
* @return a split iterator of a Stream compatible type
* @throws IllegalStateException if the size is outside of the array size
*/
public static GENERIC_KEY_BRACES JAVA_SPLIT_ITERATOR KEY_GENERIC_TYPE createArrayJavaSplititerator(KEY_TYPE[] array, int size, int characteristics) { return createArrayJavaSplititerator(array, 0, size, characteristics);}
/**
* Creates A stream compatible split iterator without copying the original array or boxing
* @param array that should be wrapped into a split iterator
* @param offset the starting index of the array
* @param size the maximum index within the array
* @param characteristics characteristics properties of this spliterator's source or elements.
* @Type(T)
* @return a split iterator of a Stream compatible type
* @throws IllegalStateException the offset and size are outside of the arrays range
*/
public static GENERIC_KEY_BRACES JAVA_SPLIT_ITERATOR KEY_GENERIC_TYPE createArrayJavaSplititerator(KEY_TYPE[] array, int offset, int size, int characteristics) {
SanityChecks.checkArrayCapacity(array.length, offset, size);
return new ArraySplitIteratorBRACES(array, offset, size, characteristics);
}
/**
* Creates a stream compatible split iterator without copying it or boxing it
* @param collection the collection that should be wrapped in a split iterator
* @param characteristics characteristics properties of this spliterator's source or elements.
* @Type(T)
* @return a split iterator of a Stream compatible type
*/
public static GENERIC_KEY_BRACES JAVA_SPLIT_ITERATOR KEY_GENERIC_TYPE createJavaSplititerator(COLLECTION KEY_GENERIC_TYPE collection, int characteristics) {
return new IteratorSpliteratorBRACES(collection, characteristics);
}
/**
* Creates a stream compatible split iterator without copying it or boxing it
* @param iterator the Iterator that should be wrapped in a split iterator
* @param characteristics characteristics properties of this spliterator's source or elements.
* @Type(T)
* @return a split iterator of a Stream compatible type
*/
public static GENERIC_KEY_BRACES JAVA_SPLIT_ITERATOR KEY_GENERIC_TYPE createUnknownJavaSplititerator(ITERATOR KEY_GENERIC_TYPE iterator, int characteristics) {
return new IteratorSpliteratorBRACES(iterator, characteristics);
}
/**
* Creates a stream compatible split iterator without copying it or boxing it
* @param iterator the collection that should be wrapped in a split iterator
* @param size the amount of elements in the iterator
* @param characteristics characteristics properties of this spliterator's source or elements.
* @Type(T)
* @return a split iterator of a Stream compatible type
*/
public static GENERIC_KEY_BRACES JAVA_SPLIT_ITERATOR KEY_GENERIC_TYPE createSizedJavaSplititerator(ITERATOR KEY_GENERIC_TYPE iterator, long size, int characteristics) {
return new IteratorSpliteratorBRACES(iterator, size, characteristics);
}
#endif
/**
* Creates a Type Specific SplitIterator to reduce boxing/unboxing
* @param array that should be wrapped into a split iterator
* @param characteristics characteristics properties of this spliterator's source or elements.
* @Type(T)
* @return a Type Specific SplitIterator
*/
public static GENERIC_KEY_BRACES SPLIT_ITERATOR KEY_GENERIC_TYPE createArraySplititerator(KEY_TYPE[] array, int characteristics) { return createArraySplititerator(array, 0, array.length, characteristics);}
/**
* Creates a Type Specific SplitIterator to reduce boxing/unboxing
* @param array that should be wrapped into a split iterator
* @param size the maximum index within the array
* @param characteristics characteristics properties of this spliterator's source or elements.
* @Type(T)
* @return a Type Specific SplitIterator
* @throws IllegalStateException if the size is outside of the array size
*/
public static GENERIC_KEY_BRACES SPLIT_ITERATOR KEY_GENERIC_TYPE createArraySplititerator(KEY_TYPE[] array, int size, int characteristics) { return createArraySplititerator(array, 0, size, characteristics);}
/**
* Creates a Type Specific SplitIterator to reduce boxing/unboxing
* @param array that should be wrapped into a split iterator
* @param offset the starting index of the array
* @param size the maximum index within the array
* @param characteristics characteristics properties of this spliterator's source or elements.
* @Type(T)
* @return a Type Specific SplitIterator
* @throws IllegalStateException the offset and size are outside of the arrays range
*/
public static GENERIC_KEY_BRACES SPLIT_ITERATOR KEY_GENERIC_TYPE createArraySplititerator(KEY_TYPE[] array, int offset, int size, int characteristics) {
SanityChecks.checkArrayCapacity(array.length, offset, size);
return new TypeArraySplitIteratorBRACES(array, offset, size, characteristics);
}
/**
* Creates a Type Specific SplitIterator to reduce boxing/unboxing
* @param collection the collection that should be wrapped in a split iterator
* @param characteristics characteristics properties of this spliterator's source or elements.
* @Type(T)
* @return a Type Specific SplitIterator
*/
public static GENERIC_KEY_BRACES SPLIT_ITERATOR KEY_GENERIC_TYPE createSplititerator(COLLECTION KEY_GENERIC_TYPE collection, int characteristics) {
return new TypeIteratorSpliteratorBRACES(collection, characteristics);
}
/**
* Creates a Type Specific SplitIterator to reduce boxing/unboxing
* @param iterator the Iterator that should be wrapped in a split iterator
* @param characteristics characteristics properties of this spliterator's source or elements.
* @Type(T)
* @return a Type Specific SplitIterator
*/
public static GENERIC_KEY_BRACES SPLIT_ITERATOR KEY_GENERIC_TYPE createUnknownSplititerator(ITERATOR KEY_GENERIC_TYPE iterator, int characteristics) {
return new TypeIteratorSpliteratorBRACES(iterator, characteristics);
}
/**
* Creates a Type Specific SplitIterator to reduce boxing/unboxing
* @param iterator the collection that should be wrapped in a split iterator
* @param size the amount of elements in the iterator
* @param characteristics characteristics properties of this spliterator's source or elements.
* @Type(T)
* @return a Type Specific SplitIterator
*/
public static GENERIC_KEY_BRACES SPLIT_ITERATOR KEY_GENERIC_TYPE createSizedSplititerator(ITERATOR KEY_GENERIC_TYPE iterator, long size, int characteristics) {
return new TypeIteratorSpliteratorBRACES(iterator, size, characteristics);
}
static class TypeIteratorSpliterator KEY_GENERIC_TYPE implements SPLIT_ITERATOR KEY_GENERIC_TYPE {
static final int BATCH_UNIT = 1 << 10;
static final int MAX_BATCH = 1 << 25;
private final COLLECTION KEY_GENERIC_TYPE collection;
private ITERATOR KEY_GENERIC_TYPE it;
private final int characteristics;
private long est;
private int batch;
TypeIteratorSpliterator(COLLECTION KEY_GENERIC_TYPE collection, int characteristics) {
this.collection = collection;
it = null;
this.characteristics = (characteristics & Spliterator.CONCURRENT) == 0
? characteristics | Spliterator.SIZED | Spliterator.SUBSIZED
: characteristics;
}
TypeIteratorSpliterator(ITERATOR KEY_GENERIC_TYPE iterator, long size, int characteristics) {
collection = null;
it = iterator;
est = size;
this.characteristics = (characteristics & Spliterator.CONCURRENT) == 0
? characteristics | Spliterator.SIZED | Spliterator.SUBSIZED
: characteristics;
}
TypeIteratorSpliterator(ITERATOR KEY_GENERIC_TYPE iterator, int characteristics) {
collection = null;
it = iterator;
est = Long.MAX_VALUE;
this.characteristics = characteristics & ~(Spliterator.SIZED | Spliterator.SUBSIZED);
}
private ITERATOR KEY_GENERIC_TYPE iterator()
{
if (it == null) {
it = collection.iterator();
est = collection.size();
}
return it;
}
@Override
public SPLIT_ITERATOR KEY_GENERIC_TYPE trySplit() {
ITERATOR KEY_GENERIC_TYPE i = iterator();
if (est > 1 && i.hasNext()) {
int n = Math.min(batch + BATCH_UNIT, Math.min((int)est, MAX_BATCH));
KEY_TYPE[] a = NEW_KEY_ARRAY(n);
int j = 0;
do { a[j] = i.NEXT(); } while (++j < n && i.hasNext());
batch = j;
if (est != Long.MAX_VALUE)
est -= j;
return new TypeArraySplitIteratorBRACES(a, 0, j, characteristics);
}
return null;
}
@Override
public void forEachRemaining(CONSUMER KEY_SUPER_GENERIC_TYPE action) {
if (action == null) throw new NullPointerException();
iterator().forEachRemaining(action);
}
#if !TYPE_OBJECT
@Override
public boolean tryAdvance(CONSUMER KEY_GENERIC_TYPE action) {
if (action == null) throw new NullPointerException();
ITERATOR KEY_GENERIC_TYPE iter = iterator();
if (iter.hasNext()) {
action.accept(iter.NEXT());
return true;
}
return false;
}
#endif
@Override
public boolean tryAdvance(Consumer<? super CLASS_TYPE> action) {
if (action == null) throw new NullPointerException();
ITERATOR KEY_GENERIC_TYPE iter = iterator();
if (iter.hasNext()) {
action.accept(KEY_TO_OBJ(iter.NEXT()));
return true;
}
return false;
}
@Override
public long estimateSize() {
iterator();
return est;
}
@Override
public int characteristics() { return characteristics; }
@Override
public Comparator<? super CLASS_TYPE> getComparator() {
if (hasCharacteristics(4)) //Sorted
return null;
throw new IllegalStateException();
}
@Override
public KEY_TYPE NEXT() { return iterator().NEXT(); }
@Override
public boolean hasNext() { return iterator().hasNext(); }
}
static final class TypeArraySplitIterator KEY_GENERIC_TYPE implements SPLIT_ITERATOR KEY_GENERIC_TYPE {
private final KEY_TYPE[] array;
private int index;
private final int fence;
private final int characteristics;
public TypeArraySplitIterator(KEY_TYPE[] array, int origin, int fence, int additionalCharacteristics) {
this.array = array;
index = origin;
this.fence = fence;
characteristics = additionalCharacteristics | Spliterator.SIZED | Spliterator.SUBSIZED;
}
@Override
public SPLIT_ITERATOR KEY_GENERIC_TYPE trySplit() {
int lo = index, mid = (lo + fence) >>> 1;
return (lo >= mid) ? null : new TypeArraySplitIteratorBRACES(array, lo, index = mid, characteristics);
}
@Override
public void forEachRemaining(CONSUMER KEY_SUPER_GENERIC_TYPE action) {
if (action == null) throw new NullPointerException();
KEY_TYPE[] a; int i, hi;
if ((a = array).length >= (hi = fence) && (i = index) >= 0 && i < (index = hi)) {
do { action.accept(a[i]); } while (++i < hi);
}
}
#if !TYPE_OBJECT
@Override
public boolean tryAdvance(CONSUMER KEY_GENERIC_TYPE action) {
if (action == null) throw new NullPointerException();
if (index >= 0 && index < fence) {
action.accept(array[index++]);
return true;
}
return false;
}
#endif
@Override
public boolean tryAdvance(Consumer<? super CLASS_TYPE> action) {
if (action == null) throw new NullPointerException();
if (index >= 0 && index < fence) {
action.accept(KEY_TO_OBJ(array[index++]));
return true;
}
return false;
}
@Override
public long estimateSize() { return fence - index; }
@Override
public int characteristics() { return characteristics; }
@Override
public Comparator<? super CLASS_TYPE> getComparator() {
if (hasCharacteristics(4)) //Sorted
return null;
throw new IllegalStateException();
}
@Override
public KEY_TYPE NEXT() { return array[index++]; }
@Override
public boolean hasNext() { return index < fence; }
}
#if PRIMITIVES
static class IteratorSpliterator KEY_GENERIC_TYPE implements JAVA_SPLIT_ITERATOR KEY_GENERIC_TYPE {
static final int BATCH_UNIT = 1 << 10;
static final int MAX_BATCH = 1 << 25;
private final COLLECTION KEY_GENERIC_TYPE collection;
private ITERATOR KEY_GENERIC_TYPE it;
private final int characteristics;
private long est;
private int batch;
IteratorSpliterator(COLLECTION KEY_GENERIC_TYPE collection, int characteristics) {
this.collection = collection;
it = null;
this.characteristics = (characteristics & Spliterator.CONCURRENT) == 0
? characteristics | Spliterator.SIZED | Spliterator.SUBSIZED
: characteristics;
}
IteratorSpliterator(ITERATOR KEY_GENERIC_TYPE iterator, long size, int characteristics) {
collection = null;
it = iterator;
est = size;
this.characteristics = (characteristics & Spliterator.CONCURRENT) == 0
? characteristics | Spliterator.SIZED | Spliterator.SUBSIZED
: characteristics;
}
IteratorSpliterator(ITERATOR KEY_GENERIC_TYPE iterator, int characteristics) {
collection = null;
it = iterator;
est = Long.MAX_VALUE;
this.characteristics = characteristics & ~(Spliterator.SIZED | Spliterator.SUBSIZED);
}
private ITERATOR KEY_GENERIC_TYPE iterator()
{
if (it == null) {
it = collection.iterator();
est = collection.size();
}
return it;
}
@Override
public JAVA_SPLIT_ITERATOR KEY_GENERIC_TYPE trySplit() {
ITERATOR KEY_GENERIC_TYPE i = iterator();
if (est > 1 && i.hasNext()) {
int n = Math.min(batch + BATCH_UNIT, Math.min((int)est, MAX_BATCH));
KEY_TYPE[] a = NEW_KEY_ARRAY(n);
int j = 0;
do { a[j] = i.NEXT(); } while (++j < n && i.hasNext());
batch = j;
if (est != Long.MAX_VALUE)
est -= j;
return new ArraySplitIteratorBRACES(a, 0, j, characteristics);
}
return null;
}
@Override
public void forEachRemaining(JAVA_CONSUMER action) {
if (action == null) throw new NullPointerException();
iterator().forEachRemaining(T -> action.accept(T));
}
@Override
public boolean tryAdvance(JAVA_CONSUMER action) {
if (action == null) throw new NullPointerException();
ITERATOR KEY_GENERIC_TYPE iter = iterator();
if (iter.hasNext()) {
action.accept(iter.NEXT());
return true;
}
return false;
}
@Override
public long estimateSize() {
iterator();
return est;
}
@Override
public int characteristics() { return characteristics; }
@Override
public Comparator<? super JAVA_CLASS> getComparator() {
if (hasCharacteristics(4)) //Sorted
return null;
throw new IllegalStateException();
}
}
static final class ArraySplitIterator KEY_GENERIC_TYPE implements JAVA_SPLIT_ITERATOR KEY_GENERIC_TYPE {
private final KEY_TYPE[] array;
private int index;
private final int fence;
private final int characteristics;
public ArraySplitIterator(KEY_TYPE[] array, int origin, int fence, int additionalCharacteristics) {
this.array = array;
index = origin;
this.fence = fence;
characteristics = additionalCharacteristics | Spliterator.SIZED | Spliterator.SUBSIZED;
}
@Override
public JAVA_SPLIT_ITERATOR KEY_GENERIC_TYPE trySplit() {
int lo = index, mid = (lo + fence) >>> 1;
return (lo >= mid) ? null : new ArraySplitIteratorBRACES(array, lo, index = mid, characteristics);
}
@Override
public void forEachRemaining(JAVA_CONSUMER action) {
if (action == null) throw new NullPointerException();
KEY_TYPE[] a; int i, hi;
if ((a = array).length >= (hi = fence) && (i = index) >= 0 && i < (index = hi)) {
do { action.accept(a[i]); } while (++i < hi);
}
}
@Override
public boolean tryAdvance(JAVA_CONSUMER action) {
if (action == null) throw new NullPointerException();
if (index >= 0 && index < fence) {
action.accept(array[index++]);
return true;
}
return false;
}
@Override
public long estimateSize() { return fence - index; }
@Override
public int characteristics() { return characteristics; }
@Override
public Comparator<? super JAVA_CLASS> getComparator() {
if (hasCharacteristics(4)) //Sorted
return null;
throw new IllegalStateException();
}
}
#endif
}