Speiger/Primitive-Collections
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- Added: ISizeProvider interface (Optimization Helper)
- Added: ISizeProvider into most Iterable implementations
(Distinct/Filter/FlatMap/ArrayFlatMap don't support it, for obvious
reasons)
- Added: ToArray function into Iterable which uses ISizeProvider to
reduce overhead of duplicating arrays.
- Fixed: putIfAbsent now replaces defaultValues
This commit is contained in:
Speiger
2022-11-20 08:56:23 +01:00
parent 5118ae8b1f
commit 99e9afe7b1
13 changed files with 197 additions and 10 deletions
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src/builder/resources/speiger/assets/collections/templates/utils/Iterables.template
+43 -6
View File
@@ -25,6 +25,7 @@ import speiger.src.collections.PACKAGE.functions.function.PREDICATE;
import speiger.src.collections.PACKAGE.sets.HASH_SET;
import speiger.src.collections.PACKAGE.sets.SET;
#endif
import speiger.src.collections.utils.ISizeProvider;
/**
* A Helper class for Iterables
@@ -247,7 +248,7 @@ public class ITERABLES
return new WrappedIterableBRACES(iterable);
}
private static class WrappedIterable KEY_GENERIC_TYPE implements ITERABLE KEY_GENERIC_TYPE
private static class WrappedIterable KEY_GENERIC_TYPE implements ITERABLE KEY_GENERIC_TYPE, ISizeProvider
{
Iterable<? extends CLASS_TYPE> iterable;
@@ -259,6 +260,12 @@ public class ITERABLES
return ITERATORS.wrap(iterable.iterator());
}
@Override
public int size() {
ISizeProvider prov = ISizeProvider.of(iterable);
return prov == null ? -1 : prov.size();
}
#if !TYPE_OBJECT
@Override
public void forEach(CONSUMER action) {
@@ -273,7 +280,7 @@ public class ITERABLES
#endif
}
private static class MappedIterable KSS_GENERIC_TYPE<E, T> implements ObjectIterable<T>
private static class MappedIterable KSS_GENERIC_TYPE<E, T> implements ObjectIterable<T>, ISizeProvider
{
ITERABLE KEY_SPECIAL_GENERIC_TYPE<E> iterable;
TO_OBJECT_FUNCTION KSS_GENERIC_TYPE<E, T> mapper;
@@ -287,6 +294,12 @@ public class ITERABLES
return ITERATORS.map(iterable.iterator(), mapper);
}
@Override
public int size() {
ISizeProvider prov = ISizeProvider.of(this);
return prov == null ? -1 : prov.size();
}
@Override
public void forEach(Consumer<? super T> action) {
Objects.requireNonNull(action);
@@ -342,7 +355,7 @@ public class ITERABLES
}
}
private static class RepeatingIterable KEY_GENERIC_TYPE implements ITERABLE KEY_GENERIC_TYPE
private static class RepeatingIterable KEY_GENERIC_TYPE implements ITERABLE KEY_GENERIC_TYPE, ISizeProvider
{
ITERABLE KEY_GENERIC_TYPE iterable;
int repeats;
@@ -357,6 +370,12 @@ public class ITERABLES
return ITERATORS.repeat(iterable.iterator(), repeats);
}
@Override
public int size() {
ISizeProvider prov = ISizeProvider.of(iterable);
return prov == null ? -1 : prov.size() * (repeats+1);
}
#if !TYPE_OBJECT
@Override
public void forEach(CONSUMER action) {
@@ -407,7 +426,7 @@ public class ITERABLES
#endif
}
private static class LimitedIterable KEY_GENERIC_TYPE implements ITERABLE KEY_GENERIC_TYPE
private static class LimitedIterable KEY_GENERIC_TYPE implements ITERABLE KEY_GENERIC_TYPE, ISizeProvider
{
ITERABLE KEY_GENERIC_TYPE iterable;
long limit;
@@ -422,6 +441,12 @@ public class ITERABLES
return ITERATORS.limit(iterable.iterator(), limit);
}
@Override
public int size() {
ISizeProvider prov = ISizeProvider.of(iterable);
return prov == null ? -1 : (int)Math.min(prov.size(), limit);
}
#if !TYPE_OBJECT
@Override
public void forEach(CONSUMER action) {
@@ -446,7 +471,7 @@ public class ITERABLES
#endif
}
private static class SortedIterable KEY_GENERIC_TYPE implements ITERABLE KEY_GENERIC_TYPE
private static class SortedIterable KEY_GENERIC_TYPE implements ITERABLE KEY_GENERIC_TYPE, ISizeProvider
{
ITERABLE KEY_GENERIC_TYPE iterable;
COMPARATOR KEY_GENERIC_TYPE sorter;
@@ -461,6 +486,12 @@ public class ITERABLES
return ITERATORS.sorted(iterable.iterator(), sorter);
}
@Override
public int size() {
ISizeProvider prov = ISizeProvider.of(iterable);
return prov == null ? -1 : prov.size();
}
#if !TYPE_OBJECT
@Override
public void forEach(CONSUMER action) {
@@ -520,7 +551,7 @@ public class ITERABLES
#endif
}
private static class PeekIterable KEY_GENERIC_TYPE implements ITERABLE KEY_GENERIC_TYPE
private static class PeekIterable KEY_GENERIC_TYPE implements ITERABLE KEY_GENERIC_TYPE, ISizeProvider
{
ITERABLE KEY_GENERIC_TYPE iterable;
CONSUMER KEY_GENERIC_TYPE action;
@@ -535,6 +566,12 @@ public class ITERABLES
return ITERATORS.peek(iterable.iterator(), action);
}
@Override
public int size() {
ISizeProvider prov = ISizeProvider.of(iterable);
return prov == null ? -1 : prov.size();
}
#if !TYPE_OBJECT
@Override
public void forEach(CONSUMER action) {