From b9468785aa264ba0c1fcf295bb15260bb47c90c0 Mon Sep 17 00:00:00 2001 From: TimeConqueror Date: Tue, 3 Aug 2021 22:34:50 +0300 Subject: GT_Recipe: speedup --- .../api/objects/iterators/ArrayIterator.java | 24 +++++++++++++++ .../api/objects/iterators/MergedIterator.java | 30 ++++++++++++++++++ .../api/objects/iterators/NonNullIterator.java | 36 ++++++++++++++++++++++ 3 files changed, 90 insertions(+) create mode 100644 src/main/java/gregtech/api/objects/iterators/ArrayIterator.java create mode 100644 src/main/java/gregtech/api/objects/iterators/MergedIterator.java create mode 100644 src/main/java/gregtech/api/objects/iterators/NonNullIterator.java (limited to 'src/main/java/gregtech/api/objects/iterators') diff --git a/src/main/java/gregtech/api/objects/iterators/ArrayIterator.java b/src/main/java/gregtech/api/objects/iterators/ArrayIterator.java new file mode 100644 index 0000000000..267a132ad5 --- /dev/null +++ b/src/main/java/gregtech/api/objects/iterators/ArrayIterator.java @@ -0,0 +1,24 @@ +package gregtech.api.objects.iterators; + +import java.util.Iterator; + +public class ArrayIterator implements Iterator { + private final T[] arr; + private int offset; + + public ArrayIterator(T[] arr) { + this.arr = arr; + } + + @Override + public boolean hasNext() { + return offset != arr.length; + } + + @Override + public T next() { + T out = arr[offset]; + offset++; + return out; + } +} diff --git a/src/main/java/gregtech/api/objects/iterators/MergedIterator.java b/src/main/java/gregtech/api/objects/iterators/MergedIterator.java new file mode 100644 index 0000000000..77fac8d22f --- /dev/null +++ b/src/main/java/gregtech/api/objects/iterators/MergedIterator.java @@ -0,0 +1,30 @@ +package gregtech.api.objects.iterators; + +import java.util.Iterator; + +public class MergedIterator implements Iterator { + private final Iterator[] inners; + private int current; + + @SafeVarargs + public MergedIterator(Iterator... iterators) { + inners = iterators; + current = 0; + } + + public boolean hasNext() { + while (current < inners.length && !inners[current].hasNext()) { + current++; + } + + return current < inners.length; + } + + public T next() { + while (current < inners.length && !inners[current].hasNext()) { + current++; + } + + return inners[current].next(); + } +} diff --git a/src/main/java/gregtech/api/objects/iterators/NonNullIterator.java b/src/main/java/gregtech/api/objects/iterators/NonNullIterator.java new file mode 100644 index 0000000000..22dd33ba2b --- /dev/null +++ b/src/main/java/gregtech/api/objects/iterators/NonNullIterator.java @@ -0,0 +1,36 @@ +package gregtech.api.objects.iterators; + +import java.util.Iterator; + +public class NonNullIterator implements Iterator { + private final Iterator internal; + private T last = null; + + public NonNullIterator(Iterator in) { + this.internal = in; + } + + @Override + public boolean hasNext() { + while (last == null) { + if (internal.hasNext()) { + last = internal.next(); + } else { + return false; + } + } + + return true; + } + + @Override + public T next() { + while (last == null) { + last = internal.next(); + } + + T temp = last; + last = null; + return temp; + } +} -- cgit From 35937ca89911c2b29f0a6027963c7439762045e7 Mon Sep 17 00:00:00 2001 From: TimeConqueror Date: Tue, 3 Aug 2021 23:13:02 +0300 Subject: Removed ArrayIterator and NonNullIterator, because they're redundant --- .../api/objects/iterators/ArrayIterator.java | 24 --------------- .../api/objects/iterators/NonNullIterator.java | 36 ---------------------- .../gregtech/api/util/extensions/IteratorExt.java | 11 ------- 3 files changed, 71 deletions(-) delete mode 100644 src/main/java/gregtech/api/objects/iterators/ArrayIterator.java delete mode 100644 src/main/java/gregtech/api/objects/iterators/NonNullIterator.java (limited to 'src/main/java/gregtech/api/objects/iterators') diff --git a/src/main/java/gregtech/api/objects/iterators/ArrayIterator.java b/src/main/java/gregtech/api/objects/iterators/ArrayIterator.java deleted file mode 100644 index 267a132ad5..0000000000 --- a/src/main/java/gregtech/api/objects/iterators/ArrayIterator.java +++ /dev/null @@ -1,24 +0,0 @@ -package gregtech.api.objects.iterators; - -import java.util.Iterator; - -public class ArrayIterator implements Iterator { - private final T[] arr; - private int offset; - - public ArrayIterator(T[] arr) { - this.arr = arr; - } - - @Override - public boolean hasNext() { - return offset != arr.length; - } - - @Override - public T next() { - T out = arr[offset]; - offset++; - return out; - } -} diff --git a/src/main/java/gregtech/api/objects/iterators/NonNullIterator.java b/src/main/java/gregtech/api/objects/iterators/NonNullIterator.java deleted file mode 100644 index 22dd33ba2b..0000000000 --- a/src/main/java/gregtech/api/objects/iterators/NonNullIterator.java +++ /dev/null @@ -1,36 +0,0 @@ -package gregtech.api.objects.iterators; - -import java.util.Iterator; - -public class NonNullIterator implements Iterator { - private final Iterator internal; - private T last = null; - - public NonNullIterator(Iterator in) { - this.internal = in; - } - - @Override - public boolean hasNext() { - while (last == null) { - if (internal.hasNext()) { - last = internal.next(); - } else { - return false; - } - } - - return true; - } - - @Override - public T next() { - while (last == null) { - last = internal.next(); - } - - T temp = last; - last = null; - return temp; - } -} diff --git a/src/main/java/gregtech/api/util/extensions/IteratorExt.java b/src/main/java/gregtech/api/util/extensions/IteratorExt.java index 1a29a7b41a..d59bb298a4 100644 --- a/src/main/java/gregtech/api/util/extensions/IteratorExt.java +++ b/src/main/java/gregtech/api/util/extensions/IteratorExt.java @@ -1,8 +1,6 @@ package gregtech.api.util.extensions; -import gregtech.api.objects.iterators.ArrayIterator; import gregtech.api.objects.iterators.MergedIterator; -import gregtech.api.objects.iterators.NonNullIterator; import java.util.Iterator; @@ -11,13 +9,4 @@ public class IteratorExt { public static Iterator merge(Iterator... iterators) { return new MergedIterator<>(iterators); } - - public static Iterator withoutNulls(Iterator iterator) { - return new NonNullIterator<>(iterator); - } - - @SafeVarargs - public static ArrayIterator ofArray(T... items) { - return new ArrayIterator<>(items); - } } -- cgit